CN105577257A

CN105577257A - Diversity Receiver Front End System With Impedance Matching Components

Info

Publication number: CN105577257A
Application number: CN201510717988.8A
Authority: CN
Inventors: S·R·M·沃洛泽西亚克
Original assignee: Conexant Systems LLC
Current assignee: Skyworks Solutions Inc; Conexant Systems LLC
Priority date: 2014-10-31
Filing date: 2015-10-29
Publication date: 2016-05-11
Anticipated expiration: 2035-10-29
Also published as: GB2572886A; HK1223204A1; JP6625257B2; SG10201609056PA; CN105577206A; TWI580207B; JP6029728B2; JP2016103819A; CN105577206B; GB2572882A; JP6526365B1; GB2572882B; KR101710961B1; CN105577257B; CN107147403A; TW201630367A; JP2019165476A; TWI611673B; JP2017092952A; KR20160052359A

Abstract

Diversity receiver front end system with phase-shifting components. A receiving system can include a controller configured to selectively activate one or more of a plurality of paths between an input of the receiving system and an output of the receiving system. The receiving system can further include a plurality of amplifiers, each one of the plurality of amplifiers disposed along a corresponding one of the plurality of paths and configured to amplify a signal received at the amplifier. The receiving system can further include a plurality of phase-shift components, each one of the plurality of phase-shift components disposed along a corresponding one of the plurality of paths and configured to phase-shift a signal passing through the phase-shift component.

Description

There is the diversity receiver front end system of impedance match part

The cross reference of related application

This application claims the U.S. Provisional Application the 62/073rd that the denomination of invention submitted on October 31st, 2014 is " DIVERSITYRECEIVERFRONTENDSYSTEM ", No. 043, the denomination of invention submitted on October 31st, 2014 is the U.S. Provisional Application the 62/073rd of " CARRIERAGGREGATIONUSINGPOST-LNAPHASEMATCHING ", No. 040, the denomination of invention submitted on October 31st, 2014 is the U.S. Provisional Application the 62/073rd of " PRE-LNAOUTOFBANDIMPEDANCEMATCHINGFORCARRIERAGGREGATIONOP ERATION ", No. 039, the denomination of invention submitted on June 9th, 2015 is the U. S. application the 14/734th of " DIVERSITYRECEIVERFRONTENDSYSTEMWITHIMPEDANCEMATCHINGCOMP ONENTS ", No. 775, the denomination of invention submitted on June 9th, 2015 is the U. S. application the 14/734th of " DIVERSITYRECEIVERFRONTENDSYSTEMWITHPHASE-SHIFTINGCOMPONE NTS ", No. 759, and the denomination of invention of submission on June 1st, 2015 is the U. S. application the 14/727th of " DIVERSITYRECEIVERFRONTENDSYSTEMWITHVARIABLE-GAINAMPLIFIE RS ", the priority of No. 739, hereby by reference and the disclosure of each is all herein incorporated clearly by it.

Technical field

The application relates generally to the wireless communication system with one or more diversity reception antennas.

Background technology

In wireless communications application, size, cost and performance are the examples of factor that may be important for given product.Such as, in order to improving performance, such as diversity reception antenna is just becoming more popular with the radio parts of the Circuits System be associated and so on.

In many radio frequencies (RF) application, diversity reception antenna is placed physically away from main antenna (primaryantenna).When two antennas are simultaneously all by use, transceiver can process signal from two antennas to improve data throughout.

Summary of the invention

According to some execution modes, the application relates to a kind of receiving system, and described receiving system comprises controller, and what be configured to optionally to activate in the multiple paths between the input of described receiving system and the output of described receiving system is one or more.Described receiving system also comprises multiple amplifier.Each amplifier in described multiple amplifier arranges along the path of the correspondence in described multiple path and the signal be configured to receiving at described amplifier place amplifies.Described receiving system also comprises multiple impedance match part.Each impedance match part in described multiple impedance match part arranges along the path of the correspondence in described multiple path and is configured at least one in the out-of-band noise coefficient (noisefigure) in the described path reduced in described multiple path or the outer gain of band.

In certain embodiments, the out-of-band noise coefficient that the first impedance match part arranged along first path corresponding with first frequency band in described multiple path in described multiple impedance match part can be configured to reduce the second frequency band corresponding with the second path in described multiple path or be with in outer gain at least one.

In certain embodiments, the second impedance match part arranged along described second path in described multiple impedance match part can be configured to reduce at least one in the out-of-band noise coefficient of described first frequency band or the outer gain of band.In certain embodiments, the described first impedance match part out-of-band noise coefficient that can also be configured to reduce three frequency band corresponding with the 3rd path in described multiple path or be with in outer gain at least one.

In certain embodiments, described first impedance match part can also be configured to for described first frequency band, reduces in-band noise coefficient or increases gain in band.In certain embodiments, within the band that described first impedance match part can be configured to described in-band noise coefficient to subtract gain in described band, tolerance (metric) is reduced to a threshold quantity of tolerance minimum value (minimum) in band.In certain embodiments, the band that described first impedance match part can be configured to described out-of-band noise coefficient to add the outer gain of described band is measured outward and is reduced to restraint strap in band and measures minimum value (in-band-constrainedout-of-bandmetricminimum) outward.

In certain embodiments, described receiving system can also comprise multiplexer, is configured to the multiple signals input signal received in described input being separated into the corresponding multiple frequency band along described multiple propagated.In certain embodiments, each impedance match part in described multiple impedance match part can be arranged between described multiplexer and the corresponding amplifier in described multiple amplifier.In certain embodiments, described receiving system can also comprise signal combiner, is configured to combine the signal along described multiple propagated.

In certain embodiments, at least one impedance match part in described multiple impedance match part can be passive circuit.In certain embodiments, at least one impedance match part in described multiple impedance match part can be rlc circuit.

In certain embodiments, at least one impedance match part in described multiple impedance match part can comprise adjustable impedance matching block, is configured to present the impedance that the impedance-tumed signal by receiving from described controller controls.

In certain embodiments, the first impedance match part arranged along first path corresponding with first frequency band in described multiple path can also be configured to carry out phase shift to the second frequency band of the signal passing through described first impedance match part, makes the initialize signal along second propagated corresponding with described second frequency band in described multiple path and the reflected signal homophase (in-phase) at least in part along described first propagated.

In some embodiments, the application relates to a kind of radio frequency (RF) module, and described RF module comprises the package substrate being configured to hold multiple parts.Described RF module also comprises the receiving system implemented in described package substrate.Described receiving system comprises controller, and what be configured to optionally to activate in the multiple paths between the input of described receiving system and the output of described receiving system is one or more.Described receiving system also comprises multiple amplifier.Each amplifier in described multiple amplifier arranges along the path of the correspondence in described multiple path and the signal be configured to receiving at described amplifier place amplifies.Described receiving system also comprises multiple impedance match part.Each impedance match part in described multiple impedance match part arranges along the path of the correspondence in described multiple path and is configured at least one in the out-of-band noise coefficient in the described path reduced in described multiple path or the outer gain of band.In certain embodiments, described RF module can be diversity receiver front-end module (FEM).

According to some instructions, the application relates to a kind of wireless device, and described wireless device comprises the first antenna being configured to reception first radio frequency (RF) signal.Described wireless device also comprises the first front-end module (FEM) with described first antenna communication.A described FEM comprises the package substrate being configured to hold multiple parts.A described FEM also comprises the receiving system implemented in described package substrate.Described receiving system comprises controller, and what be configured to optionally to activate in the multiple paths between the input of described receiving system and the output of described receiving system is one or more.Described receiving system also comprises multiple amplifier.Each amplifier in described multiple amplifier is arranged along the path of the correspondence in described multiple path, and the signal be configured to receiving at described amplifier place amplifies.Described receiving system also comprises multiple impedance match part.Each impedance match part in described multiple impedance match part is arranged along the path of the correspondence in described multiple path, and is configured at least one in the out-of-band noise coefficient in the described path reduced in described multiple path or the outer gain of band.Described wireless device also comprises transceiver, is configured to export from described the process version receiving a described RF signal via transmission line, and generates data bit based on the process version of a described RF signal.

In certain embodiments, described wireless device can also comprise the second antenna of being configured to reception second radio frequency (RF) signal and the 2nd FEM with described second antenna communication.Described transceiver can be configured to the process version receiving described 2nd RF signal from the output of described 2nd FEM, and generates data bit based on the process version of described 2nd RF signal.

In certain embodiments, the out-of-band noise coefficient that the first impedance match part arranged along first path corresponding with first frequency band in described multiple path in described multiple impedance match part is configured to reduce the second frequency band corresponding with the second path in described multiple path or be with in outer gain at least one.

According to some execution modes, the application relates to a kind of receiving system, and described receiving system comprises controller, and what be configured to optionally to activate in the multiple paths between the input of described receiving system and the output of described receiving system is one or more.Described receiving system also comprises multiple amplifier.Each amplifier in described multiple amplifier arranges along the path of the correspondence in described multiple path and the signal be configured to receiving at described amplifier place amplifies.Described receiving system also comprises multiple phase-shifting elements.Each phase-shifting elements in described multiple phase-shifting elements arranges along the path of the correspondence in described multiple path and the signal be configured to passing through described phase-shifting elements carries out phase shift.

In certain embodiments, the first phase-shifting elements arranged along first path corresponding with first frequency band in described multiple path in described multiple phase-shifting elements can be configured to carry out phase shift to the second frequency band of the signal passing through described first phase-shifting elements, makes along the second initialize signal of second propagated corresponding with described second frequency band in described multiple path and the second reflected signal homophase at least in part along described first propagated.

In certain embodiments, the second phase-shifting elements arranged along described second path in described multiple phase-shifting elements can be configured to carry out phase shift to the first frequency band of the signal passing through described second phase-shifting elements, makes the first initialize signal along described first propagated and the first reflected signal homophase at least in part along described second propagated.

In certain embodiments, described first phase-shifting elements can also be configured to carry out phase shift to the 3rd frequency band of the signal passing through described first phase-shifting elements, makes along the 3rd initialize signal of three propagated corresponding with described 3rd frequency band in described multiple path and the 3rd reflected signal homophase at least in part along described first propagated.

In certain embodiments, described first phase-shifting elements can be configured to carry out phase shift to the second frequency band of the signal passing through described first phase-shifting elements, makes described second initialize signal and described second reflected signal have the phase difference of the integral multiple of 360 degree.

In certain embodiments, described receiving system can also comprise multiplexer, is configured to the multiple signals input signal received in described input being separated into the corresponding multiple frequency band along described multiple propagated.In certain embodiments, described receiving system can also comprise signal combiner, is configured to combine the signal along described multiple propagated.In certain embodiments, described receiving system can also comprise amplifier after combiner, is arranged between described signal combiner and described output, the signal that after amplifier is configured to be amplified in described combiner after described combiner, amplifier place receives.In certain embodiments, each phase-shifting elements in described multiple phase-shifting elements can be arranged between described signal combiner and the corresponding amplifier in described multiple amplifier.In certain embodiments, at least one amplifier in described multiple amplifier can comprise dual-stage amplifier.

In certain embodiments, at least one phase-shifting elements in described multiple phase-shifting elements can be passive circuit.In certain embodiments, at least one phase-shifting elements in described multiple phase-shifting elements can be lc circuit.

In certain embodiments, at least one phase-shifting elements in described multiple phase-shifting elements can comprise tunable phase shift parts, be configured to pass through signal phase shift one amount of described tunable phase shift parts, described amount is controlled by the phase shift harmonic ringing received from described controller.

In certain embodiments, described receiving system can also comprise multiple impedance match part, each impedance match part in described multiple impedance match part is arranged along the path of the correspondence in described multiple path, and is configured at least one in the out-of-band noise coefficient in the described corresponding path reduced in described multiple path or the outer gain of band.

In some embodiments, the application relates to a kind of radio frequency (RF) module, and described RF module comprises the package substrate being configured to hold multiple parts.Described RF module also comprises the receiving system implemented in described package substrate.Described receiving system comprises controller, and what be configured to optionally to activate in the multiple paths between the input of described receiving system and the output of described receiving system is one or more.Described receiving system also comprises multiple amplifier.Each amplifier in described multiple amplifier arranges along the path of the correspondence in described multiple path and the signal be configured to receiving at described amplifier place amplifies.Described receiving system also comprises multiple phase-shifting elements.Each phase-shifting elements in described multiple phase-shifting elements arranges along the path of the correspondence in described multiple path and the signal be configured to passing through described phase-shifting elements carries out phase shift.

In certain embodiments, described RF module can be diversity receiver front-end module (FEM).

In certain embodiments, the the first phase shift component configuration arranged along first path corresponding with first frequency band in described multiple path in described multiple phase-shifting elements is carry out phase shift to the second frequency band of the signal passing through described first phase-shifting elements, makes along the second initialize signal of second propagated corresponding with described second frequency band in described multiple path and the second reflected signal homophase at least in part along described first propagated.

According to some instructions, the application relates to a kind of wireless device, and described wireless device comprises the first antenna being configured to reception first radio frequency (RF) signal.Described wireless device also comprises the first front-end module (FEM) with described first antenna communication.A described FEM comprises the package substrate being configured to hold multiple parts.A described FEM also comprises the receiving system implemented in described package substrate.Described receiving system comprises controller, and what be configured to optionally to activate in the multiple paths between the input of described receiving system and the output of described receiving system is one or more.Described receiving system also comprises multiple amplifier.Each amplifier in described multiple amplifier arranges along the path of the correspondence in described multiple path and the signal be configured to receiving at described amplifier place amplifies.Described receiving system also comprises multiple phase-shifting elements.Each phase-shifting elements in described multiple phase-shifting elements arranges along the path of the correspondence in described multiple path and the signal be configured to passing through described phase-shifting elements carries out phase shift.Described wireless device also comprises transceiver, is configured to export from described the process version receiving a described RF signal via transmission line, and generates data bit based on the process version of a described RF signal.

In certain embodiments, described wireless device can also comprise the second antenna of being configured to reception second radio frequency (RF) signal and the 2nd FEM with described second antenna communication.Described transceiver can be configured to the process version receiving described 2nd RF signal from the output of described 2nd FEM, and generates described data bit based on the process version of described 2nd RF signal.

For the object of general introduction the application, some aspect of the present invention, advantage and novel feature are described herein.Should be appreciated that according to any specific embodiment of the present invention, not necessarily will realize all these advantages.Thus, can implement according to the mode of the advantage realized or optimize as here instructed or one group of advantage or realize the present invention, and not need to realize other advantage as instructed or advise here.

Accompanying drawing explanation

Fig. 1 shows the wireless device with the communication module being couple to main antenna (primaryantenna) and diversity antenna (diversityantenna).

Fig. 2 shows the DRx configuration comprising diversity receiver (DRx) front-end module (FEM).

Fig. 3 shows in certain embodiments, and diversity receiver (DRx) configuration can comprise DRx module, and DRx module has the multiple paths corresponding with multiple frequency band.

Fig. 4 shows in certain embodiments, and diversity receiver configuration can comprise diversity RF module, and diversity RF module has less amplifier than diversity receiver (DRx) module.

Fig. 5 shows in certain embodiments, and diversity receiver configuration can comprise DRx module, and DRx module couples is to module outer filter (off-modulefilter).

Fig. 6 A shows in certain embodiments, and diversity receiver configuration can comprise DRx module, and DRx module has one or more phase matched parts (component).

Fig. 6 B shows in certain embodiments, and diversity receiver configuration can comprise DRx module, and DRx module has one or more phase matched parts and dual-stage amplifier.

Fig. 6 C shows in certain embodiments, and diversity receiver configuration can comprise DRx module, and DRx module has amplifier (post-combineramplifier) after one or more phase matched parts and combiner.

Fig. 7 shows in certain embodiments, and diversity receiver configuration can comprise DRx module, and DRx module has adjustable (tunable) phase-shifting elements.

Fig. 8 shows in certain embodiments, and diversity receiver configuration can comprise DRx module, and DRx module has one or more impedance match part.

Fig. 9 shows in certain embodiments, and diversity receiver configuration can comprise DRx module, and DRx module has adjustable impedance matching block.

Figure 10 shows in certain embodiments, and diversity receiver configuration can comprise DRx module, and DRx module has the adjustable impedance matching block being arranged on input and output place.

Figure 11 shows in certain embodiments, and diversity receiver configuration can comprise DRx module, and DRx module has multiple tunable component.

The embodiment that the flow process that Figure 12 shows the method for processing RF signals represents.

Figure 13 depicts the module had as one or more feature described here.

Figure 14 depicts the wireless device had as one or more feature described here.

Embodiment

Here the subhead (if any) provided is only conveniently, and not necessarily affects scope or the meaning of claimed invention.

Fig. 1 shows the wireless device 100 with the communication module 110 being couple to main antenna 130 and diversity antenna 140.Communication module 110 (and building block) can be controlled by controller 120.Communication module 110 comprises transceiver 112, and it is configured to change between signal and digital data signal at analog radio frequency (RF).For this reason, transceiver 112 can comprise digital to analog converter, analog to digital converter, for base-band analog signal being modulated to carrier frequency or from the local oscillator (localoscillator) of carrier frequency de not modulation base-band analog signal, for the baseband processor of carrying out changing between digital sample and data bit (such as, the data of speech or other type) or other parts.

Communication module 110 also comprises RF module 114, is coupled between main antenna 130 and transceiver 112.Because RF module 114 can physically close to main antenna 130, to reduce the decay because cable (cable) loss causes, so RF module 114 can be called as front-end module (FEM).RF module 114 can perform process for transceiver 112 to the analog signal received from main antenna 130, or launches for via main antenna 130 the analog signal execution process received from transceiver 112.For this reason, RF module 114 can comprise filter, power amplifier, band selection switches, match circuit and other parts.Similarly, communication module 110 comprises the diversity RF module 116 be coupled between diversity antenna 140 and transceiver 112, and it performs similar process.

When signal is sent to wireless device, this signal can be received at both main antenna 130 and diversity antenna 140 place.Main antenna 130 and diversity antenna 140 can be spaced apart physically, and the signal at main antenna 130 and diversity antenna 140 place is received with different characteristics.Such as, in one embodiment, main antenna 130 and diversity antenna 140 can receive the signal with differential declines, noise, frequency response or phase shift.Transceiver 112 can use two signals with different qualities to determine the data bit corresponding with signal.In some embodiments, transceiver 112 is selected between main antenna 130 and diversity antenna 140 based on described characteristic, such as selects the antenna with highest signal to noise ratio.In some embodiments, transceiver 112 combines the signal of self-consistent antenna 130 and diversity antenna 140 to improve the signal to noise ratio of composite signal.In some embodiments, transceiver 112 processing signals is to perform multiple input/multiple output (MIMO) communication.

Because diversity antenna 140 is spaced apart physically with main antenna 130, so diversity antenna 140 is couple to communication module 110 by the transmission line 135 of such as cable or printed circuit board (PCB) (PCB) trace (trace) and so on.In some embodiments, transmission line 135 is lossy and made it decay before the signal that diversity antenna 140 place receives arrives communication module 110.Therefore, in some embodiments, as described below, gain is applied to the signal received at diversity antenna 140 place.Gain (and other simulation process, such as filtering) is employed by diversity receiver module.Because such diversity receiver module can be located physically close to diversity antenna 140, so it can be called as diversity receiver front-end module.

Fig. 2 shows the DRx configuration 200 comprising diversity receiver (DRx) front-end module (FEM) 210.DRx configuration 200 comprises diversity antenna 140, and it is configured to receive diversity signal and provides this diversity signal to DRxFEM210.The diversity signal that DRxFEM210 is configured to receiving from diversity antenna 140 performs process.Such as, DRxFEM210 can be configured to diversity signal filtering to the one or more activation frequency bands such as indicated by controller 120.As another example, DRxFEM210 can be configured to amplification diversity signal.For this reason, DRxFEM210 can comprise filter, low noise amplifier, band selection switches, match circuit and other parts.

DRxFEM210 via transmission line 135 by process after diversity signal be sent to downstream module, such as diversity RF (D-RF) module 116, its by further process after diversity signal be fed to transceiver 112.Diversity RF module 116 (and, in some embodiments, transceiver) controlled by controller 120.In some embodiments, controller 120 can be embodied in transceiver 112.

Fig. 3 shows in certain embodiments, and diversity receiver (DRx) configures 300 and can comprise DRx module 310, DRx module 310 and have the multiple paths corresponding with multiple frequency band.DRx configuration 300 comprises the diversity antenna 140 being configured to receive diversity signal.In some embodiments, diversity signal can be the single frequency tone signal comprising the data be modulated on single frequency band.In some embodiments, diversity signal can be the multi-band signal (also referred to as carrier aggregation signal between frequency band) comprising the data be modulated on multiple frequency band.

DRx module 310 has to receive provides the diversity signal after process to the output of transceiver 330 from the input of the diversity signal of diversity antenna 140 and (via transmission line 135 and diversity RF module 320).The input of DRx module 310 is fed in the input of the first multiplexer (MUX) 311.First multiplexer 311 comprises multiple multiplexer and exports, the path between its each input and output corresponding to DRx module 310.Each path may correspond in corresponding frequency band.The output of DRx module 310 is provided by the output of the second multiplexer 312.Second multiplexer 312 comprises the input of multiple multiplexer, one of path between its each input and output corresponding to DRx module 310.

Frequency band can be the honeycomb frequency band of such as UMTS (universal mobile telecommunications system) frequency band and so on.Such as, first frequency band can be UMTS down link between 1930 megahertzes (MHz) and 1990MHz or " Rx " frequency band 2, and second frequency band can be UMTS down link between 869MHz and 894MHz or " Rx " frequency band 5.Other down-link frequencies band can be used, those or other the non-UMTS frequency band such as described in Table 1 below.

In some embodiments, DRx module 310 comprises DRx controller 302, it receives the signal of self-controller 120 (also referred to as communication controler), and the one or more paths in optionally activating between input and output multiple paths based on Received signal strength.In some embodiments, DRx module 310 does not comprise DRx controller 302, and controller 120 directly optionally activates the one or more paths in multiple path.

As mentioned above, in some embodiments, diversity signal is single frequency tone signal.Therefore, in some embodiments, first multiplexer 311 is that (SPMT) switch thrown by hilted broadsword more, and diversity signal to be routed to the path corresponding with the frequency band of single frequency tone signal in multiple path by it based on the signal received from DRx controller 302.DRx controller 302 can generate described signal based on DRx controller 302 from the band selected signal that communication controler 120 receives.Similarly, in some embodiments, the second multiplexer 312 is SPMT switches, its based on the signal incoming road received from DRx controller 302 by the signal from the path corresponding with the frequency band of single frequency tone signal in multiple path.

As mentioned above, in some embodiments, diversity signal is multi-band signal.Therefore, in some embodiments, first multiplexer 311 is demultiplexers, and diversity signal to be routed to two or more paths corresponding with two or more frequency bands of multi-band signal in multiple path by it based on the separator control signal received from DRx controller 302.The function of demultiplexer can be embodied as SPMT switch, diplexer filter or these certain combination.Similarly, in some embodiments, second multiplexer 312 is signal combiners, and it is based on the signal of the combiner control signal combination received from DRx controller 302 from two or more paths corresponding with two or more frequency bands of multi-band signal in multiple path.The function of signal combiner can be embodied as SPMT switch, duplexer (diplexer) filter or these certain combination.DRx controller 302 can generate separator control signal and combiner control signal based on DRx controller 302 from the band selected signal that communication controler 120 receives.

Therefore, in some embodiments, the band selected signal that DRx controller 302 is configured to receive based on DRx controller 302 (such as, from communication controler 120) optionally activates the one or more paths multiple path.In some embodiments, DRx controller 302 is configured to pass and sends separator control signal to demultiplexer with send one or more paths that combiner control signal to come to signal combiner in the multiple path of selective activation.

DRx module 310 comprises multiple band pass filter 313a-313d.Each in band pass filter 313a-313d is arranged along the path of the correspondence in multiple path, and is configured to the signal filtering that receives at the band pass filter place corresponding frequencies band to the described path in multiple path.In some embodiments, band pass filter 313a-313d is also configured to the signal filtering that receives at the band pass filter place down-link frequencies subband to the corresponding frequencies band in the described path in multiple path.DRx module 310 comprises multiple amplifier 314a-314d.Each in amplifier 314a-314d is arranged along the path of the correspondence in multiple path, and is configured to be amplified in the signal that this amplifier place receives.

In some embodiments, amplifier 314a-314d is narrow-band amplifier, is configured to amplify the signal in the corresponding frequencies band in the path wherein arranging described amplifier.In some embodiments, amplifier 314a-314d can be controlled by DRx controller 302.Such as, in some embodiments, each in amplifier 314a-314d comprises enable/disable input, and is enabled (or forbidding) based on the amplifier enable signal received in enable/disable input.Amplifier enable signal can be sent by DRx controller 302.Therefore, in some embodiments, DRx controller 302 is configured to pass transmit amplifier enable signal optionally to activate in multiple path to one or more in the amplifier 314a-314d arranged along the one or more paths in multiple path respectively one or more.In such execution mode, not controlled by DRx controller 302, the first multiplexer 311 can be demultiplexer, each in multiple path of its route diversity signal, second multiplexer 312 can be signal combiner, and its combination is from the signal in each path in multiple path.But DRx controller 302 controls in the execution mode of the first multiplexer 311 and the second multiplexer 312 wherein, DRx controller 302 also can enable (or forbidding) specific amplifier 314a-314d such as to save battery.

In some embodiments, amplifier 314a-314d is variable gain amplifier (VGA).Therefore, in some embodiments, DRx module 310 comprises multiple variable gain amplifier (VGA), and each VGA arranges along the path of the correspondence in multiple path and is configured to the signal received to be amplified in VGA by the gain of the amplifier control signal control received from DRx controller 302.

The gain of VGA can be can bypass, can stepped change, can continually varying.In some embodiments, at least one by-pass switch comprising fixed gain amplifier and can be controlled by amplifier control signal in each VGA.By-pass switch can (in primary importance) connect fixed gain amplifier the output being input to fixed gain amplifier between circuit, make signal bypass cross fixed gain amplifier.By-pass switch (in the second place) can disconnect circuit between input and output, and signal is transmitted by fixed gain amplifier.In some embodiments, when by-pass switch is in primary importance, fixed gain amplifier is prohibited or otherwise reconfigures to adapt to bypass mode.

In some embodiments, at least one in each VGA comprises gain can the amplifier (step-variablegainamplifier) of stepped change, and it is configured to the signal received to be amplified in VGA with the gain of one of the multiple configuration amount indicated by amplifier control signal.In some embodiments, at least one in each VGA comprises gain can continually varying amplifier (continuously-variablegainamplifier), and it is configured to the signal received to be amplified in VGA place with the gain proportional with amplifier control signal.

In some embodiments, amplifier 314a-314d is current-variable amplifier (VCA).The electric current that VCA draws (draw) can be can bypass, can stepped change, can continually varying.In some embodiments, at least one by-pass switch comprising fixed current amplifier and can be controlled by amplifier control signal in each VCA.By-pass switch can (in primary importance) connect fixed current amplifier the output being input to fixed current amplifier between circuit, make signal bypass cross fixed current amplifier.By-pass switch (in the second place) can disconnect circuit between input and output, and signal is transmitted by fixed current amplifier.In some embodiments, when by-pass switch is in primary importance, fixed current amplifier is prohibited or otherwise reconfigures to adapt to bypass mode.

In some embodiments, at least one in each VCA comprises electric current can the amplifier of stepped change, and it is configured to pass the signal that the electric current that draws one of multiple configuration amount of being indicated by amplifier control signal receives to be amplified in VCA.In some embodiments, at least one in each VCA comprises electric current can continually varying amplifier, and it is configured to pass the signal drawing the electric current proportional with amplifier control signal and receive to be amplified in VCA place.

In some embodiments, amplifier 314a-314d is fixed gain, fixed current amplifier.In some embodiments, amplifier 314a-314d is fixed gain, variable current amplifier.In some embodiments, amplifier 314a-314d is variable gain, fixed current amplifier.In some embodiments, amplifier 314a-314d is variable gain, variable current amplifier.

In some embodiments, DRx controller 302 generates amplifier control signal based on the quality of service measures (metric) of the input signal received in input.In some embodiments, DRx controller 302 generates amplifier control signal based on the signal received from communication controler 120, and the signal received from communication controler 120 can be measured based on the service quality of Received signal strength (QoS) again then.The QoS metric of Received signal strength can at least in part based on the diversity signal that diversity antenna 140 receives (input signal such as, received in input).The QoS metric of Received signal strength also can based on the signal that main antenna receives.In some embodiments, DRx controller 302 generates amplifier control signal based on the QoS metric of diversity signal, and not from communication controler 120 Received signal strength.

In some embodiments, QoS metric comprises signal strength signal intensity.As another example, QoS metric can comprise the error rate, data throughout, transmission delay or other QoS metric any.

As mentioned above, DRx module 310 has to receive provides the diversity signal after process to the output of transceiver 330 from the input of the diversity signal of diversity antenna 140 and (via transmission line 135 and diversity RF module 320).Diversity RF module 320 receives the diversity signal after process via transmission line 135 and performs further process.Especially, the diversity signal after process is separated or is routed to one or more path by diversity RF multiplexer 321, and the signal of separation or route amplifies by the band pass filter 323a-323d filtering of correspondence and by the amplifier 324a-324d of correspondence thereon.The output of each amplifier 324a-324d is provided to transceiver 330.

Diversity RF multiplexer 321 can be controlled by controller 120 (directly or via (on-chip) diversity RF controller on sheet) optionally to activate one or more path.Similarly, amplifier 324a-324d can be controlled by controller 102.Such as, in some embodiments, each enable/disable that comprises in amplifier 324a-324d inputs and is enabled based on amplifier enable signal (or forbidding).In some embodiments, amplifier 324a-324d is variable gain amplifier (VGA), the signal that its gain controlled with the amplifier control signal received from controller 120 (or on the sheet controlled by controller 120 diversity RF controller) receives to be amplified in VGA.In some embodiments, amplifier 324a-324d is variable current amplifier (VCA).

Because the DRx module 310 of adding receiver chain to has comprised diversity RF module 320, so DRx configures the doubles of the band pass filter in 300.Therefore, in some embodiments, band pass filter 323a-323d is not included in diversity RF module 320.But the band pass filter 313a-313d of DRx module 310 is used to reduce (out-of-band) outside band and blocks the intensity of signal (blocker).In addition, automatic growth control (AGC) table of diversity RF module 320 can be shifted (shift), reduces the amount of gain provided by the amplifier 314a-314d of DRx module 310 with the amount of gain provided by the amplifier 324a-324d of diversity RF module 320.

Such as, if the gain of DRx module is 15dB and receiver sensitivity is-100dBm, so diversity RF module 320 will see the sensitivity of-85dBm.If the closed loop AGC of diversity RF module 320 activates, so its gain will decline 15dB automatically.But signal component and band outer retardance component are all received and amplify 15dB.Therefore, the 15dB gain decline of diversity RF module 320 also can be attended by the 15dB raising of its linearity.Especially, the amplifier 324a-324d of diversity RF module 320 can be designed so that the linearity of amplifier reduces (or electric current increase) along with gain and increases.

In some embodiments, the gain (and/or electric current) of the amplifier 314a-314d of controller 120 control DRx module 310 and the amplifier 324a-324d of diversity RF module 320.As in the examples described above, the amount of gain that the increase of the amount of gain that controller 120 can provide in response to the amplifier 314a-314d of DRx module 310 and reducing is provided by the amplifier 324a-324d of diversity RF module 320.Therefore, in some embodiments, controller 120 is configured to generate (the amplifier 324a-324d for diversity RF module 320) downstream amplifier control signal, controlling the gain of the one or more downstream amplifier 324a-324d being couple to (DRx module 310) output via transmission line 135 based on (the amplifier 314a-314d for DRx module 310) amplifier control signal.In some embodiments, controller 120 also controls the gain of other parts (amplifier such as, in front-end module (FEM)) of wireless device based on amplifier control signal.

As mentioned above, in some embodiments, band pass filter 323a-323d is not comprised.Therefore, in some embodiments, at least one in downstream amplifier 324a-324d is couple to (DRx module 310) output via transmission line 135, and does not pass through downstream belt bandpass filter.

Fig. 4 shows in certain embodiments, and diversity receiver configuration 400 can comprise diversity RF module 420, diversity RF module 420 and have less amplifier than diversity receiver (DRx) module 310.Diversity receiver configuration 400 comprises diversity antenna 140 and DRx module 310, as described in Figure 3.The output of DRx module 310 is delivered to diversity RF module 420 via transmission line 135, and its diversity RF module 420 be in Fig. 4 with the difference of the diversity RF module 320 in Fig. 3 comprises less amplifier than DRx module 310.

As mentioned above, in some embodiments, diversity RF module 420 does not comprise band pass filter.Therefore, in some embodiments, one or more amplifiers 424 of diversity RF module 420 need not be (band-specific) for special frequency band.Especially, diversity RF module 420 can comprise one or more path, and each path comprises amplifier 424, and described path is not map 1 with the path 1 of DRx module 310.The mapping in such path (or amplifier of correspondence) can be stored in controller 120.

Therefore, although DRx module 310 comprises multiple path, each path corresponds to a frequency band, and diversity RF module 420 can comprise the one or more paths not corresponding to single frequency band.

In some execution modes (as shown in Figure 4), diversity RF module 420 comprises single broadband or adjustable amplifier 424, and it amplifies the signal that receives from transmission line 135 and exports amplifying signal to multiplexer 421.Multiplexer 421 comprises multiple multiplexer and exports, and each multiplexer exports and corresponds to corresponding frequency band.In some embodiments, diversity RF module 420 does not comprise any amplifier.

In some embodiments, diversity signal is single frequency tone signal.Therefore, in some embodiments, multiplexer 421 is SPMT switches, and its corresponding with the frequency band of described single frequency tone signal one of to be routed to by diversity signal in multiple output based on the signal received from controller 120 exports.In some embodiments, diversity signal multi-band signal.Therefore, in some embodiments, multiplexer 421 is demultiplexers, and based on the separator control signal received from controller 120, by diversity signal, two or more corresponding with two or more frequency bands of described multi-band signal be routed in multiple output export for it.In some embodiments, diversity RF module 420 can be combined as individual module with transceiver 330.

In some embodiments, diversity RF module 420 comprises multiple amplifier, and each amplifier corresponds to a class frequency band.Signal from transmission line 135 can be fed in band separator, and this band separator exports high frequency to high-frequency amplifier and along the second path output low frequency to low frequency amplifier along the first path.The output of each amplifier can be provided to multiplexer 421, and multiplexer 421 is configured to correspondence input signal being routed to transceiver 330.

Fig. 5 shows in certain embodiments, and diversity receiver configuration 500 can comprise DRx module 510, DRx module 510 and be couple to module outer filter 513.DRx module 510 can comprise the package substrate 501 and the receiving system of enforcement in package substrate 501 that are configured to hold multiple parts.DRx module 510 can comprise one or more signal path, and it is routed to the outer and filter making system integration person, designer or producer can support for any desired frequency band of DRx module 510.

DRx module 510 is included in the multiple paths between the input and output of DRx module 510.DRx module 510 comprise between input and output, the bypass path that activated by the by-pass switch 519 controlled by DRx controller 502.Although Fig. 5 illustrates single by-pass switch 519, in some embodiments, by-pass switch 519 can comprise multiple switch (such as, arrange physically close to the first switch inputted and arrange the second switch to obtain close physically output).As shown in Figure 5, bypass path does not comprise filter or amplifier.

DRx module 510 comprises multiple multiplexer path, and it comprises the first multiplexer 511 and the second multiplexer 512.Multiplexer path comprises multiple module upper pathway (on-modulepaths), and it comprises the first multiplexer 511, the band pass filter 313a-313d implemented in package substrate 501, implement amplifier 314a-314d in package substrate 501 and the second multiplexer 512.Multiplexer path comprises one or more module outer pathway, and it comprises the first multiplexer 511, the band pass filter 513 implemented outside package substrate 501, amplifier 514 and the second multiplexer 512.Amplifier 514 can be the wide-band amplifier implemented in package substrate 501, or also may be implemented within outside package substrate 501.As mentioned above, amplifier 314a-314d, 514 can be variable gain amplifier and/or variable current amplifier.

It is one or more that DRx controller 502 is configured to optionally to activate in the multiple paths between input and output.In some embodiments, DRx controller 502 is configured to one or more paths of optionally activating based on the band selected signal received by DRx controller 502 (such as, from communication controler) multiple path.DRx controller 502 can by such as to disconnect or connect by-pass switch 519, enable or forbid amplifier 314a-314d, 514, controls multiplexer 511,512, or machine-processed by other, carrys out optionally activated path.Such as, DRx controller 502 can disconnect or connect along path switch (such as, at filter 313a-313d, switch between 513 and amplifier 314a-314d, 514), or by by amplifier 314a-314d, 514 gain be set to be zero substantially.

Fig. 6 A shows in certain embodiments, and diversity receiver configuration 600 can comprise DRx module 610, DRx module 610 and have one or more phase matched parts 624a-624b.DRx module 610 comprises two paths being couple to the output of transmission line 135 being input to DRx module 610 being couple to antenna 140 from DRx module 610.

In the DRx module 610 of Fig. 6 A, demultiplexer and band pass filter are embodied as duplexer 611.Duplexer 611 comprise be couple to antenna 140 input, be couple to the first amplifier 314a first export and be couple to the second amplifier 314b second export.In the first output, duplexer 611 export receive input (such as, from antenna 140), filtering is to the signal of first frequency band.In the second output, duplexer 611 export receive in input, filtering is to the signal of second frequency band.In some embodiments, duplexer 611 can utilize triplexer (triplexer), four multiplexers (quadplexer) or other multiplexer any to replace, and this other multiplexer configuration any is the multiple signals along the multiple propagated input signal that the input in DRx module 610 receives being separated into corresponding multiple frequency band place.

As mentioned above, each in amplifier 314a-314b is arranged along the path of the correspondence in each path, and is configured to be amplified in the signal that amplifier place receives.The output of amplifier 314a-314b, before being combined by signal combination 612, is fed the phase-shifting elements 624a-624b by correspondence.

Signal combiner 612 comprise be couple to the first phase-shifting elements 624a the first input, be couple to second input of the second phase-shifting elements 624b and be couple to the output of output of DRx module 610.The signal of the output of signal combiner is the signal sum of the first input and the second input.Therefore, signal combiner is configured to combine the signal along multiple propagated.

When antenna 140 receives signal, this signal by duplexer 611 filtering to first frequency band, and by the first amplifier 314a along the first propagated.Filtering and the signal after amplifying are carried out phase shift by the first phase-shifting elements 624a, and are fed to the first input of signal combiner 612.In some embodiments, signal combiner 612 or the second amplifier 314b do not stop signal to continue through signal combiner 612 along the second path in the opposite direction.Therefore, signal propagates through the second phase-shifting elements 624b and by the second amplifier 314b, and duplexer 611 is left in its reflection there.Reflected signal propagates through the second amplifier 314b and the second phase-shifting elements 624b, with second of arriving signal combiner 612 the input.

As (the first input of signal combiner 612) initialize signal and (the second input of signal combiner 612) reflected signal out-phase (out-of-phase), the superposition (sumation) performed by signal combiner 612 causes the signal of the output of signal combiner 612 to weaken.Similarly, when initialize signal and the same phase time of reflected signal, the superposition performed by signal combiner 612 causes the signal of the output of signal combiner 612 to strengthen.Therefore, in some embodiments, the second phase-shifting elements 624b is configured to carry out phase shift to (at least in first frequency band) signal, makes initialize signal and reflected signal homophase at least in part.Especially, the second phase-shifting elements 624b is configured to carry out phase shift to (at least in first frequency band) signal, makes the amplitude of initialize signal and reflected signal sum be greater than the amplitude of initialize signal.

Such as, the second phase-shifting elements 624b be can be configured to and carries out phase shift to the signal passing through the second phase-shifting elements 624b by by-1/2 times of the phase shift being left duplexer 611 by the backpropagation of the second amplifier 314b, reflection and introduced by the forward-propagating of the second amplifier 314b.As another example, the second phase-shifting elements 624b can be configured to the signal passing through the second phase-shifting elements 624b by 360 degree and by by the backpropagation of the second amplifier 314b, reflect leave duplexer 611 and introduced by the forward-propagating of the second amplifier 314b phase shift between the half of difference carry out phase shift.Usually, the signal that the second phase-shifting elements 624b can be configured to passing through the second phase-shifting elements 624b carries out phase shift, makes initialize signal and reflected signal have the phase difference of the integral multiple (comprising zero) of 360 degree.

Exemplarily, initialize signal can 0 degree (or other reference phase any), is left duplexer 611 by the backpropagation of the second amplifier 314b, reflection and can be introduced the phase shift of 140 degree by the forward-propagating of the second amplifier 314b.Therefore, in some embodiments, the signal that the second phase-shifting elements 624b is configured to passing through the second phase-shifting elements 624b carries out phase shift by-70 degree.Therefore, initialize signal is moved on to-70 degree by the second phase-shifting elements 624b phase, left duplexer 611 and move on to 70 degree mutually with the forward-propagating by the second amplifier 314b by by the backpropagation of the second amplifier 314b, reflection, and be moved back into 0 degree by the second phase-shifting elements 624b phase.

In some embodiments, the signal that the second phase-shifting elements 624b is configured to passing through the second phase-shifting elements 624b carries out phase shift by 110 degree.Therefore, initialize signal is moved on to 110 degree by the second phase-shifting elements 624b phase, left duplexer 611 and move on to 250 degree mutually with the forward-propagating by the second amplifier 314b by by the backpropagation of the second amplifier 314b, reflection, and moved on to 360 degree by the second phase-shifting elements 624b phase.

Meanwhile, the signal received by antenna 140 by duplexer 611 filtering to second frequency band, and by the second amplifier 314b along the second propagated.Filtering and the signal after amplifying are carried out phase shift by the second phase-shifting elements 624b, and are fed to the second input of signal combiner 612.In some embodiments, signal combiner 612 or the first amplifier 314a do not stop signal to continue through signal combiner 612 along the first path in the opposite direction.Therefore, signal propagates through the first phase-shifting elements 624a and by the first amplifier 314a, and duplexer 611 is left in its reflection there.Reflected signal propagates through the first amplifier 314a and the first phase-shifting elements 624a, with first of arriving signal combiner 612 the input.

When (the second input of signal combiner 612) initialize signal and (the first input of signal combiner 612) reflected signal out-phase, the superposition performed by signal combiner 612 causes the signal of the output of signal combiner 612 to weaken, when initialize signal and the same phase time of reflected signal, the superposition performed by signal combiner 612 causes the signal of the output of signal combiner 612 to strengthen.Therefore, in some embodiments, the first phase-shifting elements 624a is configured to carry out phase shift to (at least in second frequency band) signal, makes initialize signal and reflected signal homophase at least in part.

Such as, the first phase-shifting elements 624a be can be configured to and carries out phase shift to the signal passing through the first phase-shifting elements 624a by by-1/2 times of the phase shift being left duplexer 611 by the backpropagation of the first amplifier 314a, reflection and introduced by the forward-propagating of the first amplifier 314a.As another example, the first phase-shifting elements 624a can be configured to the signal passing through the first phase-shifting elements 624a by 360 degree and by by the backpropagation of the first amplifier 314a, reflect leave duplexer 611 and introduced by the forward-propagating of the first amplifier 314a phase shift between the half of difference carry out phase shift.Usually, the signal that the first phase-shifting elements 624a can be configured to passing through the first phase-shifting elements 624a carries out phase shift, makes initialize signal and reflected signal have the phase difference of the integral multiple (comprising zero) of 360 degree.

Phase-shifting elements 624a-624b can be embodied as passive circuit.Especially, phase-shifting elements 624a-624b can be embodied as lc circuit, and comprises one or more passive components of such as inductor and/or capacitor and so on.Passive component can be in parallel and/or be connected in series, and can be connected between the output of amplifier 314a-314b and the input of signal combiner 612, between the output that maybe can be connected to amplifier 314a-314b and ground voltage.In some embodiments, phase-shifting elements 624a-624b is integrated in the wafer (die) identical with amplifier 314a-314b or is integrated in same package.

(such as, as shown in Figure 6A) in some execution modes, phase-shifting elements 624a-624b is along after described path is arranged on amplifier 314a-314b.Therefore, any signal attenuation caused by phase-shifting elements 624a-624b does not affect the performance of module 610, the signal to noise ratio such as outputed signal.But, in some embodiments, before phase-shifting elements 624a-624b is arranged on amplifier 314a-314b along described path.Such as, phase-shifting elements 624a-624b accessible site is in the impedance match part arranged between duplexer 611 and amplifier 314a-314b.

Fig. 6 B shows in certain embodiments, and diversity receiver configuration 640 can comprise DRx module 641, DRx module 641 and have one or more phase matched parts 624a-624b and dual-stage amplifier 614a-614b.The DRx module 641 of Fig. 6 B is substantially similar with the DRx module 610 of Fig. 6 A, and just the amplifier 314a-314b of the DRx module 610 of Fig. 6 A is replaced by the dual-stage amplifier 614a-614b in the DRx module 641 of Fig. 6 B.

Fig. 6 C shows in certain embodiments, and diversity receiver configuration 680 can comprise DRx module 681, DRx module 681 and have amplifier 615 after one or more phase matched parts 624a-624b and combiner.The DRx module 681 of Fig. 6 C is substantially similar with the DRx module 610 of Fig. 6 A, and just the DRx module 681 of Fig. 6 C comprises amplifier 615 after the combiner between output and the output of DRx module 681 being arranged on signal combiner 612.Be similar to amplifier 314a-314b, after combiner, amplifier 615 can be the variable gain amplifier (VGA) and/or variable current amplifier that are controlled by DRx controller (not shown).

Fig. 7 shows in certain embodiments, and diversity receiver configuration 700 can comprise DRx module 710, DRx module 710 and have tunable phase shift parts 724a-724d.Each can be configured in tunable phase shift parts 724a-724d will pass through signal phase shift one amount of tunable phase shift parts, and this amount is controlled by the phase shift harmonic ringing received from DRx controller 702.

Diversity receiver configuration 700 comprises DRx module 710, and it has the input being couple to antenna 140 and the output being couple to transmission line 135.DRx module 710 is included in the multiple paths between the input and output of DRx module 710.In some embodiments, DRx module 710 comprise between input and output, one or more bypass path (not shown) of being activated by the one or more by-pass switches controlled by DRx controller 702.

DRx module 710 comprises multiple multiplexer path, and it comprises inputoutput multiplexer 311 and output multiplexer 312.Multiplexer path comprises multiple module upper pathway (as shown in the figure), and it comprises amplifier 615 after inputoutput multiplexer 311, band pass filter 313a-313d, amplifier 314a-314d, tunable phase shift parts 724a-724d, output multiplexer 312 and combiner.Multiplexer path can comprise one or more module outer pathway (not shown), as mentioned above.Similarly, as described above, amplifier 314a-314d (comprising rear gain amplifier 615) can be variable gain amplifier and/or variable current amplifier.

Tunable phase shift parts 724a-724d can comprise one or more units of variance, such as inductor and capacitor.Units of variance can be in parallel and/or be connected in series, and can be connected between the output of amplifier 314a-314d and the input of output multiplexer 312, between the output that maybe can be connected to amplifier 314a-314d and ground voltage.

It is one or more that DRx controller 702 is configured to optionally to activate in the multiple paths between input and output.In some embodiments, DRx controller 702 is configured to one or more paths of optionally activating based on the band selected signal received by DRx controller 702 (such as, from communication controler) multiple path.DRx controller 702 by such as enable or forbid amplifier 314a-314d, can control multiplexer 311,312, or by other mechanism as above, carrys out optionally activated path.

In some embodiments, DRx controller 702 is configured to carry out tuning to tunable phase shift parts 724a-724d.In some embodiments, DRx controller 702 carries out tuning based on band selected signal to tunable phase shift parts 724a-724d.Such as, DRx controller 702 can carry out tuning to tunable phase shift parts 724a-724d based on look-up table, and the frequency band indicated by band selected signal (or frequency band group) is associated with tuner parameters by this look-up table.Therefore, in response to band selected signal, phase shift harmonic ringing can be sent to the tunable phase shift parts 724a-724d of each activated path by DRx controller 702, to carry out tuning according to tuner parameters to tunable phase shift parts (or its units of variance).

DRx controller 702 can be configured to and carries out tuning to tunable phase shift parts 724a-724d, makes band external reflectance signal at output multiplexer 312 place and the outer initialize signal homophase of band.Such as, if (by the first amplifier 314a's) first path that band selected signal instruction is corresponding with first frequency band, (by second amplifier 314b) second path corresponding with second frequency band, (by the 3rd amplifier 314c's) the 3rd path will be activated, then DRx controller 702 can carry out tuning to the first tunable phase shift parts 724a, make (1) for (the second frequency band place) signal along the second propagated, initialize signal with along the first path backpropagation, reflection leaves band pass filter 313a and by the reflected signal homophase of the first path forward-propagating, and (2) are for (the 3rd frequency band place) signal along the 3rd propagated, initialize signal with along the first path backpropagation, reflection leaves band pass filter 313a and by the reflected signal homophase of the first path forward-propagating.

DRx controller 702 can carry out tuning to the first tunable phase shift parts 724a, makes the phase-shift phase of second frequency band be different from the 3rd frequency band.Such as, if owing to leaving band pass filter 313a and the forward-propagating by the first amplifier 314a by the backpropagation of the first amplifier 314a, reflection, the signal at second frequency band place has been phase-shifted 140 degree and the signal at the 3rd frequency band place has been phase-shifted 130 degree, then DRx controller 702 can carry out tuning to the first tunable phase shift parts 724a, (or 110 degree) are spent in the phase shift-70 of second frequency band and (or 115 degree) are spent in the 3rd frequency band phase shift-65.

DRx controller 702 can carry out tuning to the second tunable phase shift parts 724b and the 3rd tunable phase shift parts 724c similarly.

As another example, if band selected signal indicates the first path, second path, (by the 4th amplifier 314d's) the 4th path will be activated, then DRx controller 702 can carry out tuning to the first tunable phase shift parts 724a, make (1) for (the second frequency band place) signal along the second propagated, initialize signal with along the first path backpropagation, reflection leaves band pass filter 313a and by the reflected signal homophase of the first path forward-propagating, and (2) are for (the 4th frequency band place) signal along the 4th propagated, initialize signal with along the first path backpropagation, reflection leaves band pass filter 313a and by the reflected signal homophase of the first path forward-propagating.

The units of variance of tunable phase shift parts 724a-724d can be tuned as the different value had for different frequency band group by DRx controller 702.

In some embodiments, tunable phase shift parts 724a-724d utilizes DRx controller 702 fixed phase drift parts that are untunable or that control to replace.Each phase-shifting elements in each phase-shifting elements that the corresponding path corresponding with frequency band in multiple path is arranged can be configured to and carries out phase shift to each in other frequency band, make along other corresponding path initialize signal with along the backpropagation of one of described path, reflection leaves corresponding band pass filter and by the reflected signal homophase of one of described path forward-propagating.

Such as, third phase moves parts 724c can be fixing and be configured to (1) and carry out phase shift to first frequency band, make the initialize signal of (along the first propagated) first frequency band with along the 3rd path backpropagation, reflection leaves the 3rd band pass filter 313c and by the reflected signal homophase of the 3rd path forward-propagating, (2) phase shift is carried out to second frequency band, make the initialize signal of (along the second propagated) second frequency band with along the 3rd path backpropagation, reflection leaves the 3rd band pass filter 313c and by the reflected signal homophase of the 3rd path forward-propagating, and (3) carry out phase shift to the 4th frequency band, make the initialize signal of (along the 4th propagated) the 4th frequency band with along the 3rd path backpropagation, reflection leaves the 3rd band pass filter 313c and by the reflected signal homophase of the 3rd path forward-propagating.Other phase-shifting elements can be fixing similarly and be configured.

Therefore, DRx module 710 comprises DRx controller 702, and what be configured to optionally to activate in the multiple paths between the input of DRx module 710 and the output of DRx module 710 is one or more.DRx module 710 also comprises multiple amplifier 314a-314d, and each amplifier in multiple amplifier 314a-314d arranges along the path of the correspondence in multiple path and the signal be configured to receiving at amplifier place amplifies.DRx module also comprises multiple phase-shifting elements 724a-724d, and each phase-shifting elements in multiple phase-shifting elements 724a-724d arranges along the path of the correspondence in multiple path and the signal be configured to passing through phase-shifting elements carries out phase shift.

In some embodiments, first phase-shifting elements 724a edge and first frequency band are (such as, the frequency band of the first band pass filter 313a) the first corresponding path arranges, and be configured to the second frequency band of the signal passing through the first phase-shifting elements 724a (such as, the frequency band of the second band pass filter 313b) carry out phase shift, make the initialize signal along second propagated corresponding with second frequency band and the reflected signal homophase at least in part along the first propagated.

In some embodiments, first phase-shifting elements 724a is also configured to the 3rd frequency band of the signal passing through the first phase-shifting elements 724a (such as, the frequency band of the 3rd band pass filter 313c) carry out phase shift, make the initialize signal along three propagated corresponding with the 3rd frequency band and the reflected signal homophase at least in part along the first propagated.

Similarly, in some embodiments, the the second phase-shifting elements 724b arranged along the second path is configured to carry out phase shift to the first frequency band of the signal passing through the second phase-shifting elements 724b, makes the initialize signal along the first propagated and the reflected signal homophase at least in part along the second propagated.

Fig. 8 shows in certain embodiments, and diversity receiver configuration 800 can comprise DRx module 810, DRx module 810 and have one or more impedance match part 834a-834b.DRx module 810 comprises two paths being couple to the output of transmission line 135 being input to Rx module 810 being couple to antenna 140 from DRx module 810.

In the DRx module 810 of Fig. 8 (as in the DRx module 610 of Fig. 6 A), demultiplexer and band pass filter are embodied as duplexer 611.Duplexer 611 comprise be couple to antenna input, be couple to the first impedance match part 834a first export and be couple to the second impedance match part 834b second export.In the first output, duplexer 611 export receive input (such as, from antenna 140), filtering is to the signal of first frequency band.In the second output, duplexer 611 export receive in input, filtering is to the signal of second frequency band.

Each impedance match part 834a-834b is arranged between duplexer 611 and amplifier 314a-314b.As mentioned above, each in amplifier 314a-314b is arranged along the path of the correspondence in each path, and is configured to be amplified in the signal that amplifier place receives.The output of amplifier 314a-314b is fed to signal combiner 612.

Signal combiner 612 comprise be couple to the first amplifier 314a the first input, be couple to second input of the second amplifier 314b and be couple to the output of output of DRx module 610.The signal of the output of signal combiner is the signal sum of the first input and the second input.

When antenna 140 receives signal, this signal by duplexer 611 filtering to first frequency band, and by the first amplifier 314a along the first propagated.Similarly, this signal by duplexer 611 filtering to second frequency band, and by the second amplifier 314b along the second propagated.

Each path characterizes by noise factor and gain.The noise factor in each path is the expression of the deterioration of the signal to noise ratio (SNR) caused by the amplifier arranged along path and impedance match part.Especially, the noise factor in each path be the SNR of the input of impedance match part 834a-834b and the output of amplifier 314a-314b SNR between decibel (dB) poor.Thus, noise factor is that the noise of amplifier exports measuring (measure) of the difference exported with the noise of " ideal " amplifier (it does not produce noise) with identical gain.Similarly, the gain in each path is the expression of the gain caused by the amplifier arranged along path and impedance match part.

The noise factor in each path and gain can be different for different frequency bands.Such as, the first path can have for first frequency band in-band noise coefficient and band in gain and for second frequency band out-of-band noise coefficient and band outer gain.Similarly, the second path can have for second frequency band in-band noise coefficient and band in gain and for first frequency band out-of-band noise coefficient and band outer gain.

DRx module 810 also can be characterized by noise factor that can be different for different frequency band and gain.Especially, the noise factor of DRx module 810 be the output of SNR and the DRx module 810 of the input of DRx module 810 SNR between dB poor.

The noise factor in (each frequency band place) each path and gain can depend on (each frequency band place) impedance of impedance match part 834a-834b at least in part.Therefore, will be advantageous that, the impedance of impedance match part 834a-834b makes the in-band noise coefficient in each path minimize and/or make gain in the band in each path to maximize.Therefore, in some embodiments, each impedance match part 834a-834b be configured to in-band noise coefficient that (compared with lacking the DRx module of this impedance match part 834a-834b) reduce its respective paths and/or increase its respective paths band in gain.

Because combined along the signal of two propagated by signal combiner 612, the out-of-band noise that amplifier produced or amplified can have a negative impact to composite signal.Such as, the out-of-band noise that the first amplifier 314a produces or amplifies can increase the noise factor at second frequency place of DRx module 810.Therefore, will be advantageous that, the impedance of impedance match part 834a-834b makes the out-of-band noise coefficient in each path minimize and/or make the outer gain minimization of the band in each path.Therefore, in some embodiments, each impedance match part 834a-834b is configured to (compared with lacking the DRx module of this impedance match part 834a-834b) and reduces the out-of-band noise coefficient of its respective paths and/or reduce the outer gain of band of its respective paths.

Impedance match part 834a-834b can be embodied as passive circuit.Especially, impedance match part 834a-834b can be embodied as rlc circuit, and comprises one or more passive components of such as resistor, inductor and/or capacitor and so on.Passive component can be in parallel and/or be connected in series, and can be connected between the output of duplexer 611 and the input of amplifier 314a-314b, between the output that maybe can be connected to duplexer 611 and ground voltage.In some embodiments, impedance match part 834a-834b is integrated in encapsulation in the wafer identical with amplifier 314a-314b or identical.

As mentioned above, will be advantageous that for particular path, the impedance of impedance match part 834a-834b makes in-band noise coefficient minimize, and in band, gain maximizes, and out-of-band noise coefficient minimizes, and the outer gain minimization of band.With only two kinds of degrees of freedom (such as, the impedance at first frequency band place and the impedance at second frequency band place) or other various constraint (such as, number of components, cost, die space) be designed for the impedance match part 834a-834b realizing all these four targets and may have challenge.Therefore, in some embodiments, in the band making in-band noise coefficient subtract gain in band, tolerance minimizes, and out-of-band noise coefficient is added be with the band of outer gain to measure outward to minimize.Be designed for various constraint the impedance match part 834a-834b that realizes all these two targets and may remain challenge.Therefore, in some embodiments, according to one group of constraint, tolerance in band is minimized, and according to the constraint of this group and the additional constraint that makes tolerance in band increase a no more than threshold quantity (such as, 0.1dB, 0.2dB, 0.5dB or other value any), band is measured outward to minimize.Therefore, within the band that impedance match part is configured to in-band noise coefficient to subtract gain in band, tolerance is reduced to a threshold quantity of tolerance minimum value in band (such as, may with interior tolerance according to the minimum of any constraint).Impedance match part is also configured to out-of-band noise coefficient to add is with the band of outer gain to measure outward to be reduced to restraint strap in band to measure (in-band-constrainedout-of-bandmetric) minimum value outward, such as, outer tolerance may be with according to the minimum of additional constraint making tolerance in band increase a no more than threshold quantity.In some embodiments, composite metric (compositemetric) that (by band extrinsic factor weighting) band measures outward minimizes according to any constraint, tolerance in (by band intrinsic factor weighting) band to be added.

Therefore, in some embodiments, each impedance match part 834a-834b is configured to (such as, by reducing in-band noise coefficient, increase gain in band or both) tolerance (in-band noise coefficient subtracts the interior gain of band) in the band that reduces its respective paths.In some embodiments, each impedance match part 834a-834b is also configured to (such as, by reducing out-of-band noise coefficient, reduce the outer gain of band or both) band that reduces its respective paths measures (out-of-band noise coefficient add be with outer gain) outward.

In some embodiments, by reducing the outer tolerance of band, impedance match part 834a-834b reduces the noise factor at one or more frequency band places of DRx module 810, and does not have the substantive noise factor increasing other frequency band place.

Fig. 9 shows in certain embodiments, and diversity receiver configuration 900 can comprise DRx module 910, DRx module 910 and have adjustable impedance matching block 934a-934d.Each adjustable impedance matching block 934a-934d can be configured to the impedance presenting the impedance-tumed signal by receiving from DRx controller 902 and control.

Diversity receiver configuration 900 comprises DRx module 910, and it has the input being couple to antenna 140 and the output being couple to transmission line 135.DRx module 910 is included in the multiple paths between the input and output of DRx module 910.In some embodiments, DRx module 910 comprise between input and output, one or more bypass path (not shown) of being activated by the one or more by-pass switches controlled by DRx controller 902.

DRx module 910 comprises multiple multiplexer path, and it comprises inputoutput multiplexer 311 and output multiplexer 312.Multiplexer path comprises multiple module upper pathway (as shown in the figure), and it comprises inputoutput multiplexer 311, band pass filter 313a-313d, adjustable impedance matching block 934a-934d, amplifier 314a-314d and output multiplexer 312.Multiplexer path also can comprise one or more module outer pathway (not shown), as mentioned above.Similarly, as described above, amplifier 314a-314d can be variable gain amplifier and/or variable current amplifier.

Adjustable impedance matching block 934a-934d can be adjustable T circuit, adjustable PI circuit or other adjustable match circuit any.Adjustable impedance matching block 934a-934d can comprise one or more units of variance, such as resistor, inductor and capacitor.Units of variance can be in parallel and/or be connected in series, and can be connected between the output of inputoutput multiplexer 311 and the input of amplifier 314a-314b, between the output that maybe can be connected to inputoutput multiplexer 311 and ground voltage.

It is one or more that DRx controller 902 is configured to optionally to activate in the multiple paths between input and output.In some embodiments, DRx controller 902 is configured to one or more paths of optionally activating based on the band selected signal received by DRx controller 902 (such as, from communication controler) multiple path.DRx controller 902 by such as enable or forbid amplifier 314a-314d, can control multiplexer 311,312, or by other mechanism as above, carrys out optionally activated path.

In some embodiments, DRx controller 902 is configured to carry out tuning to adjustable impedance matching block 934a-934d.In some embodiments, DRx controller 902 carries out tuning based on band selected signal to adjustable impedance matching block 934a-934d.Such as, DRx controller 902 can carry out tuning to adjustable impedance matching block 934a-934d based on look-up table, and the frequency band indicated by band selected signal (or frequency band group) is associated with tuner parameters by this look-up table.Therefore, in response to band selected signal, impedance-tumed signal can be sent to the adjustable impedance matching block 934a-934d of each activated path by DRx controller 902, to carry out tuning according to tuner parameters to adjustable impedance matching block (or its units of variance).

In some embodiments, DRx controller 902 carries out tuning for the gain of control amplifier 314a-314d and/or the amplifier control signal of electric current to adjustable impedance matching block 934a-934d based on being sent out at least in part.

In some embodiments, DRx controller 902 is configured to carry out tuning to the adjustable impedance matching block 934a-934d of each activated path, in-band noise coefficient is minimized (or reduction), in band, gain maximizes (or increase), the out-of-band noise coefficient of other activated path each minimizes (or reduction), and/or the outer gain minimization of the band of other activated path each (or reduction).

In some embodiments, DRx controller 902 is configured to carry out tuning to the adjustable impedance matching block 934a-934d of each activated path, make to be with interior tolerance (in-band noise coefficient subtracts gain in band) to minimize (or reduction), and the band of other activated path each is measured (out-of-band noise coefficient adds the outer gain of band) outward and is minimized (or reduction).

In some embodiments, DRx controller 902 is configured to carry out tuning to the adjustable impedance matching block 934a-934d of each activated path, make according to one group of constraint, tolerance in band to be minimized (or reduction), and according to the constraint of this group with make to measure in band additional constraint that increase is no more than a threshold quantity (such as, 0.1dB, 0.2dB, 0.5dB or other value any) and make the band of other activated path each measure outward to minimize (or reduction).

Therefore, in some embodiments, DRx controller 902 is configured to carry out tuning to the adjustable impedance matching block 934a-934d of each activated path, within in the band making adjustable impedance matching block in-band noise coefficient be subtracted gain in band, tolerance is reduced to a threshold quantity of tolerance minimum value in band (such as, may with interior tolerance according to the minimum of any constraint).DRx controller 902 also can be configured to and carries out tuning to the adjustable impedance matching block 934a-934d of each activated path, out-of-band noise coefficient is added by adjustable impedance matching block be with the band of outer gain to measure to be reduced to restraint strap in band outward and measure minimum value (such as, according to tolerance in band is increased be no more than the minimum of the additional constraint of a threshold quantity may be with outer tolerance) outward.

In some embodiments, DRx controller 902 is configured to carry out tuning to the adjustable impedance matching block 934a-934d of each activated path, makes to make tolerance in (by band intrinsic factor weighting) band add (the band extrinsic factor weighting by other activated path each) composite metric that the band of other activated path each is measured outward according to any constraint and minimizes.

The units of variance of adjustable impedance matching block 934a-934d can be tuned as the different value had for different frequency band group by DRx controller 902.

In some embodiments, adjustable impedance matching block 934a-934d utilizes DRx controller 902 blocked impedance matching block that is untunable or that control to replace.The each impedance match part arranged along the corresponding path corresponding with frequency band in multiple path in each impedance match part can be configured to and reduces to measure and reduce (or minimizing) in (or minimizing) band for a described frequency band and measure outward for the band of other frequency band one or more (such as, other frequency band each).

Such as, 3rd impedance match part 934c can be fixing and be configured to the interior tolerance of band that (1) reduces to be used for the 3rd frequency band, (2) band reducing to be used for first frequency band is measured outward, (3) band reducing to be used for second frequency band is measured outward, and/or (4) reduce to measure outward for the band of the 4th frequency band.Other impedance match part can be fixing similarly and be configured.

Therefore, DRx module 910 comprises DRx controller 902, and what be configured to optionally to activate in the multiple paths between the input of DRx module 910 and the output of DRx module 910 is one or more.DRx module 910 also comprises multiple amplifier 314a-314d, and each amplifier in multiple amplifier 314a-314d arranges along the path of the correspondence in multiple path and the signal be configured to receiving at amplifier place amplifies.DRx module 910 also comprises multiple impedance match part 934a-934d, and each impedance match part in multiple impedance match part 934a-934d arranges along the path of the correspondence in multiple path and is configured at least one in the out-of-band noise coefficient in the described path reduced in multiple path or the outer gain of band.

In some embodiments, first impedance match part 934a edge and first frequency band are (such as, the frequency band of the first band pass filter 313a) the first corresponding path arrange and be configured to reduce for the second frequency band (such as, the frequency band of second band pass filter 313b) corresponding with the second path out-of-band noise coefficient or be with in outer gain at least one.

In some embodiments, the first impedance match part 934a be also configured to reduce for three frequency band (such as, the frequency band of three band pass filter 313c) corresponding with the 3rd path out-of-band noise coefficient or be with in outer gain at least one.

Similarly, in some embodiments, the second impedance match part 934b arranged along the second path is configured to reduction at least one in the out-of-band noise coefficient of first frequency band or the outer gain of band.

Figure 10 shows in certain embodiments, and diversity receiver configuration 1000 can comprise DRx module 1010, DRx module 1010 and have the adjustable impedance matching block being arranged on input and output place.DRx module 1010 can comprise one or more adjustable impedance matching block, is arranged on the one or more places in the input and output of DRx module 1010.Especially, DRx module 1010 can comprise the input being arranged on DRx module 1010 input adjustable impedance matching block 1016, be arranged on the output adjustable impedance matching block 1017 of the output of DRx module 1010 or both.

Multiple frequency bands that identical diversity antenna 140 receives unlikely all see desirable impedance matching.In order to use compact match circuit to mate each frequency band, adjustable input resistant matching parts 1016 may be implemented in the input of DRx module 1010 and are controlled by DRx controller 1002 (such as, based on the band selected signal from communication controler).Such as, DRx controller 1002 can carry out tuning to adjustable input resistant matching parts 1016 based on look-up table, and the frequency band indicated by band selected signal (or frequency band group) is associated with tuner parameters by this look-up table.Therefore, in response to band selected signal, input impedance harmonic ringing can be sent to adjustable input resistant matching parts 1016 by DRx controller 1002, to carry out tuning according to tuner parameters to adjustable input resistant matching parts (or its units of variance).

Adjustable input resistant matching parts 1016 can be adjustable T circuit, adjustable PI circuit or other adjustable match circuit any.Especially, adjustable input resistant matching parts 1016 can comprise one or more units of variance, such as resistor, inductor and capacitor.Units of variance can be in parallel and/or be connected in series, and can be connected between the input of DRx module 1010 and the input of the first multiplexer 311, between the input that maybe can be connected to DRx module 1010 and ground voltage.

Similarly, with the signal of an only transmission lines 135 (or, at least, a small amount of transmission line) the many frequency bands of posting, unlikely multiple frequency band all sees desirable impedance matching.In order to use compact match circuit to mate each frequency band, adjustable output impedance matching block 1017 may be implemented in the output of DRx module 1010 and is controlled by DRx controller 1002 (such as, based on the band selected signal from communication controler).Such as, DRx controller 1002 can carry out tuning to adjustable output impedance matching block 1017 based on look-up table, and the frequency band indicated by band selected signal (or frequency band group) is associated with tuner parameters by this look-up table.Therefore, in response to band selected signal, output impedance harmonic ringing can be sent to adjustable output impedance matching block 1017 by DRx controller 1002, to carry out tuning according to tuner parameters to adjustable output impedance matching block (or its units of variance).

Adjustable output impedance matching block 1017 can be adjustable T circuit, adjustable PI circuit or other adjustable match circuit any.Especially, adjustable output impedance matching block 1017 can comprise one or more units of variance, such as resistor, inductor and capacitor.Units of variance can be in parallel and/or be connected in series, and between the output that can be connected to the second multiplexer 312 and the output of DRx module 1010, between the output that maybe can be connected to the second multiplexer 312 and ground voltage.

Figure 11 shows in certain embodiments, and diversity receiver configuration 1100 can comprise DRx module 1110, DRx module 1110 and have multiple tunable component.Diversity receiver configuration 1100 comprises DRx module 1110, and it has the input being couple to antenna 140 and the output being couple to transmission line 135.DRx module 1110 is included in the multiple paths between the input and output of DRx module 1110.In some embodiments, DRx module 1110 comprise between input and output, one or more bypass path (not shown) of being activated by the one or more by-pass switches controlled by DRx controller 1102.

DRx module 1110 comprises multiple multiplexer path, and it comprises inputoutput multiplexer 311 and output multiplexer 312.Multiplexer path comprises multiple module upper pathway (as shown in the figure), and it comprises adjustable input resistant matching parts 1016, inputoutput multiplexer 311, band pass filter 313a-313d, adjustable impedance matching block 934a-934d, amplifier 314a-314d, tunable phase shift parts 724a-724d, output multiplexer 312 and adjustable output impedance matching block 1017.Multiplexer path also can comprise one or more module outer pathway (not shown), as mentioned above.Similarly, as described above, amplifier 314a-314d can be variable gain amplifier and/or variable current amplifier.

It is one or more that DRx controller 1102 is configured to optionally to activate in the multiple paths between input and output.In some embodiments, DRx controller 1102 is configured to one or more paths of optionally activating based on the band selected signal received by DRx controller 1102 (such as, from communication controler) multiple path.DRx controller 902 by such as enable or forbid amplifier 314a-314d, can control multiplexer 311,312, or by other mechanism as above, carrys out optionally activated path.In some embodiments, DRx controller 1102 is configured to transmit amplifier control signal to respectively along one or more amplifier 314a-314d that one or more activated path is arranged.Amplifier control signal controls the gain (or electric current) of the amplifier that it is sent to.

DRx controller 1102 is configured to carry out one or more in following parts tuning: adjustable input resistant matching parts 1016, adjustable impedance matching block 934a-934d, tunable phase shift parts 724a-724d and adjustable output impedance matching block 1017.Such as, DRx controller 1102 can carry out tuning to tunable component based on look-up table, and the frequency band indicated by band selected signal (or frequency band group) is associated with tuner parameters by this look-up table.Therefore, in response to band selected signal, harmonic ringing can be sent to (activated path) tunable component by DRx controller 1101, to carry out tuning according to tuner parameters to tunable component (or its units of variance).In some embodiments, DRx controller 1102 carries out tuning for the gain of control amplifier 314a-314d and/or the amplifier control signal of electric current to tunable component based on being sent out at least in part.In various embodiments, one or more tunable component can be replaced by the fixed part do not controlled by DRx controller 1102.

Understand, the tuning of a tunable component may affect the tuning of other tunable component.Thus, can based on the tuner parameters for the second tunable component for the tuner parameters of the first tunable component in look-up table.Such as, the tuner parameters for tunable phase shift parts 724a-724d can based on the tuner parameters for adjustable impedance matching block 934a-934d.As another example, the tuner parameters for adjustable impedance matching block 934a-934d can based on the tuner parameters for adjustable input resistant matching parts 1016.

The embodiment that the flow process that Figure 12 shows the method for processing RF signals represents.In some embodiments (and as below exemplarily describe in detail), method 1200 is performed by the controller of the DRx controller 1102 and so on of such as Figure 11.In some embodiments, method 1200 performs by comprising hardware, firmware, software or its processing logic combined.In some embodiments, method 1200 is performed by the processor performing the code stored in non-transitory computer-readable medium (such as, memory).In brief, method 1200 comprises frequency acceptance band and selects signal and carry out RF signal that route receives along one or more tuning path to process the RF signal received.

Method 1200 starts from block 1210 place, and its middle controller frequency acceptance band selects signal.Controller can select signal from another controller frequency acceptance band, or can select signal from cellular basestation or other external source frequency acceptance band.Band selected signal can indicate wireless device to transmit and receive one or more frequency bands of RF signal.In some embodiments, band selected signal instruction is used for a class frequency band of carrier aggregation communication.

At block 1220 place, controller optionally activates one or more paths of diversity receiver (DRx) module based on band selected signal.As mentioned above, DRx module can be included in the multiple paths between (being couple to one or more antenna) one or more input of DRx module and (being couple to one or more transmission line) one or more output.Path can comprise bypass path and multiplexer path.Multiplexer path can comprise module upper pathway and module outer pathway.

Controller is by such as disconnecting or connecting one or more by-pass switch, via amplifier enable signal enable or forbid along path arrange amplifier, one or more multiplexer is controlled via separator control signal and/or combiner control signal, or by other mechanism, that optionally activates in multiple path is one or more.Such as, controller can disconnect or connect the switch arranged along path, or the gain of the amplifier arranged along path is set to be zero substantially.

At block 1230 place, controller sends harmonic ringing to the one or more tunable component arranged along one or more activated path.It is one or more that tunable component can comprise in following parts: the adjustable input resistant matching parts arranged in the input of DRx module, the multiple adjustable impedance matching blocks arranged along multiple path respectively, the multiple tunable phase shift parts arranged along multiple path respectively or the adjustable output impedance matching block arranged in the output of DRx module.

Controller can carry out tuning to tunable component based on look-up table, and the frequency band indicated by band selected signal (or frequency band group) is associated with tuner parameters by this look-up table.Therefore, in response to band selected signal, harmonic ringing can be sent to (activated path) tunable component by DRx controller, to carry out tuning according to tuner parameters to adjustable (tunable) parts (or its variable (variable) parts).In some embodiments, controller carries out tuning for the gain of one or more amplifiers controlling to arrange along one or more activated path respectively and/or the amplifier control signal of electric current to tunable component based on being sent out at least in part.

Figure 13 illustrates in certain embodiments, and some or all diversity receivers configuration (such as, shown in Fig. 3-11 those) can be implemented whole or in part in a module.Such module can be such as front-end module (FEM).Such module can be such as diversity receiver (DRx) FEM.In the example in figure 13, module 1300 can comprise package substrate 1302, and multiple parts can be arranged in such package substrate 1302.Such as, controller 1304 (it can comprise front-end power management integrated circuit (FE-PIMC)), low noise amplifier assembly (assembly) 1306 (it can comprise one or more variable gain amplifier), matching block 1308 (it can comprise one or more fixing or tunable phase shift parts 1331 and one or more fixing or adjustable impedance matching block 1332), multiplexer elements 1310 and bank of filters 1312 (it can comprise one or more band pass filter) can to install and/or implement in package substrate 1302 and/or in.Such as other parts of multiple surface mounting technology (SMT) device 1314 and so on also can be arranged in package substrate 1302.Although being all depicted as by all parts is deployed in package substrate 1302, will understand, can just implement other parts on some of the components.

In some embodiments, device and/or the circuit with one or more feature described here can be included in the RF electronic installation of such as wireless device and so on.This device and/or circuit can directly be implemented in a wireless device, so that such as modular form enforcement described here or certain combination with them are implemented.In certain embodiments, this wireless device such as can comprise cell phone, smart phone, tool are with or without telephony feature wireless handheld device, wireless flat computer etc.

Figure 14 depicts the example wireless device 1400 with one or more favorable characteristics described here.Have in the context as one or more modules of one or more feature described here, such module can usually be represented by dotted line frame 1401 (it can be embodied as such as front-end module), diversity RF module 1411 (it can be embodied as such as downstream module) and diversity receiver (DRx) module 1300 (it can be embodied as such as front-end module).

With reference to Figure 14, power amplifier (PA) 1420 can receive its corresponding RF signal from transceiver 1410, and transceiver 1410 can configure and be operating as the RF signal generating and will amplify and launch in known manner, and processes the signal received.Be depicted as by transceiver 1410 and carry out alternately with baseband subsystems 1408, baseband subsystems 1408 is configured to provide the conversion between data and/or voice signal and the RF signal being suitable for transceiver 1410 being suitable for user.Transceiver 1410 can also communicate with power management components 1406, and power management components 1406 is configured to manage the power for operate wireless device 1400.This power management can also control the operation of baseband subsystems 1408 and module 1401,1411 and 1300.

Baseband subsystems 1408 is depicted as and is connected to user interface 1402, so that provide to user and the speech that receives from user and/or the various input and output of data.Baseband subsystems 1408 can also be connected to memory 1404, and memory 1404 is configured to data and/or the instruction of the operation stored for being convenient to wireless device, and/or provides the storage of information to user.

In example wireless device 1400, the output of each PA1420 is depicted as (via corresponding match circuit 1422) and is mated and be routed to their corresponding duplexers 1424.Can by duplexer 1414 by this amplification and filtered signal is routed to main antenna 1416, for transmitting.In certain embodiments, duplexer 1424 can allow to use community antenna (such as, main antenna 1416) side by side to perform transmitting and receiving operation.In fig. 14, received signal is depicted as " receiving (the Rx) " path being routed to and such as can comprising low noise amplifier (LNA).

The diversity receiver module 1300 that wireless device also comprises diversity antenna 1426 and receives from the signal of diversity antenna 1426.Diversity receiver module 1300 processes the signal that receives and via transmission line 1435, the signal after process is sent to diversity RF module 1411, diversity RF module 1411 and feeding signals to this signal of process that takes a step forward of transceiver 1410.

Can utilize as various honeycomb frequency described here brings the one or more features implementing the application.List the example of these frequency bands in Table 1.To understand, at least some in described frequency band can be divided into sub-band.Also will understand, one or more features of the application can be implemented together with the frequency range of the appointment of the example without such as table 1 and so on (designation).

Table 1

Unless context clearly separately has requirement, otherwise run through specification and claims, will according to the meaning of adversative the comprising property with exclusiveness or exhaustive, that is, " comprise (comprise) " to explain term according to the meaning of " including but not limited to ", " comprising (comprising) " etc.The term used as here " couples " and refers to that two or more elements directly can connect or connect by means of one or more intermediary element.In addition, when used in this application, term " here ", " above ", " below " and the term of similar implication should refer to the application as a whole, instead of any concrete part of the application.When context allows, use the term in the above description of odd number or plural number also can comprise plural number or odd number respectively.Mention the term "or" during list of two or more projects, it is whole that this term is contained in the following explanation of this term: any combination of project in any project in list, all items in list and list.

The above detailed description of the embodiment of the present invention is not intended to be exhaustive, or precise forms disclosed above limiting the invention to.Although describe specific embodiments of the invention above for purposes of illustration and for example of the present invention, as the skilled person will recognize, various equivalent modifications are within the scope of the present invention possible.Such as, although according to presenting process or block to definite sequence, but the embodiment of replacing can perform the process of the step with different order, or adopt the system with the block of different order, and some process or block can deleted, mobile, add, deduct, combine and/or revise.Can according to various different mode realize these process or block in each.Similarly, perform serially although sometimes process or block are depicted as, on the contrary, these process or block also can perform concurrently, or can perform at different time.

The instruction of the present invention provided can be applied to other system here, and need not to be above-mentioned system.Can combine the element of each above-mentioned embodiment and action, to provide further embodiment.

Although describe some embodiments of the present invention, only present these embodiments by means of example, and described embodiment is not intended to limit the scope of the application.In fact, novel method described here and system can be implemented according to other forms multiple; In addition, the pro forma various omission of method and system described herein, replacement and change can be made at, and not depart from the spirit of the application.Accompanying drawing and their equivalent are intended to contain this form as fallen in the scope and spirit of the application or amendment.

Claims

1. a receiving system, comprising:

Controller, what be configured to optionally to activate in the multiple paths between the input of described receiving system and the output of described receiving system is one or more;

Multiple amplifier, each amplifier in described multiple amplifier arranges along the path of the correspondence in described multiple path and the signal be configured to receiving at described amplifier place amplifies; And

Multiple impedance match part, each impedance match part in described multiple impedance match part arranges along the path of the correspondence in described multiple path and is configured at least one in the out-of-band noise coefficient in the described path reduced in described multiple path or the outer gain of band.

2. receiving system according to claim 1, wherein, the out-of-band noise coefficient that the first impedance match part arranged along first path corresponding with first frequency band in described multiple path in described multiple impedance match part is configured to reduce the second frequency band corresponding with the second path in described multiple path or be with in outer gain at least one.

3. receiving system according to claim 2, wherein, the second impedance match part arranged along described second path in described multiple impedance match part is configured to reduce at least one in the out-of-band noise coefficient of described first frequency band or the outer gain of band.

4. receiving system according to claim 2, wherein, the out-of-band noise coefficient that described first impedance match part is also configured to reduce three frequency band corresponding with the 3rd path in described multiple path or be with in outer gain at least one.

5. receiving system according to claim 2, wherein, described first impedance match part is also configured to for described first frequency band, increases at least one in the interior gain of band or reduction in-band noise coefficient.

6. receiving system according to claim 5, wherein, within the band that described first impedance match part is configured to described in-band noise coefficient to subtract gain in described band, tolerance is reduced to a threshold quantity of tolerance minimum value in band.

7. receiving system according to claim 6, wherein, the band that described first impedance match part is configured to described out-of-band noise coefficient to add the outer gain of described band is measured outward and is reduced to restraint strap in band and measures minimum value outward.

8. receiving system according to claim 1, also comprises multiplexer, is configured to the multiple signals input signal received in described input being separated into the corresponding multiple frequency band along described multiple propagated.

9. receiving system according to claim 8, wherein, each impedance match part in described multiple impedance match part is arranged between described multiplexer and the corresponding amplifier in described multiple amplifier.

10. receiving system according to claim 1, also comprises signal combiner, is configured to combine the signal along described multiple propagated.

11. receiving systems according to claim 1, wherein, at least one impedance match part in described multiple impedance match part is passive circuit.

12. receiving systems according to claim 1, wherein, at least one impedance match part in described multiple impedance match part is rlc circuit.

13. receiving systems according to claim 1, wherein, at least one impedance match part in described multiple impedance match part comprises adjustable impedance matching block, is configured to present the impedance by the impedance-tumed signal controlling received from described controller.

14. receiving systems according to claim 1, wherein, the first impedance match part arranged along first path corresponding with first frequency band in described multiple path is also configured to carry out phase shift to the second frequency band of the signal passing through described first impedance match part, makes along the initialize signal of second propagated corresponding with described second frequency band in described multiple path and the reflected signal homophase at least in part along described first propagated.

15. 1 kinds of radio frequency modules, comprising:

Package substrate, is configured to hold multiple parts; And

Receiving system, implement in described package substrate, described receiving system comprises: controller, and what be configured to optionally to activate in the multiple paths between the input of described receiving system and the output of described receiving system is one or more; Multiple amplifier, each amplifier in described multiple amplifier arranges along the path of the correspondence in described multiple path and the signal be configured to receiving at described amplifier place amplifies; And multiple impedance match part, each impedance match part in described multiple impedance match part arranges along the path of the correspondence in described multiple path and is configured at least one in the out-of-band noise coefficient in the described path reduced in described multiple path or the outer gain of band.

16. RF modules according to claim 15, wherein, described RF module is diversity receiver front-end module FEM.

17. RF modules according to claim 15, wherein, the out-of-band noise coefficient that the first impedance match part arranged along first path corresponding with first frequency band in described multiple path in described multiple impedance match part is configured to reduce the second frequency band corresponding with the second path in described multiple path or be with in outer gain at least one.

18. 1 kinds of wireless devices, comprising:

First antenna, is configured to reception first radio frequency rf signal;

First front-end module FEM, with described first antenna communication, a described FEM comprises the package substrate being configured to hold multiple parts, a described FEM also comprises the receiving system implemented in described package substrate, described receiving system comprises: controller, and what be configured to optionally to activate in the multiple paths between the input of described receiving system and the output of described receiving system is one or more; Multiple amplifier, each amplifier in described multiple amplifier arranges along the path of the correspondence in described multiple path and the signal be configured to receiving at described amplifier place amplifies; And multiple impedance match part, each impedance match part in described multiple impedance match part arranges along the path of the correspondence in described multiple path and is configured at least one in the out-of-band noise coefficient in the described path reduced in described multiple path or the outer gain of band; And

Transceiver, is configured to export from described the process version receiving a described RF signal via transmission line, and generates data bit based on the process version of a described RF signal.

19. wireless devices according to claim 18, also comprise the second antenna of being configured to reception second radio frequency rf signal and the 2nd FEM with described second antenna communication, described transceiver arrangement is the process version receiving described 2nd RF signal from the output of described 2nd FEM, and generates data bit based on the process version of described 2nd RF signal.

20. wireless devices according to claim 18, wherein, the out-of-band noise coefficient that the first impedance match part arranged along first path corresponding with first frequency band in described multiple path in described multiple impedance match part is configured to reduce the second frequency band corresponding with the second path in described multiple path or be with in outer gain at least one.