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WO2018137541A1 - Procédés, dispositifs, stations de base et terminaux pour améliorer et acquérir la couverture d'un signal commun de cellule - Google Patents

Procédés, dispositifs, stations de base et terminaux pour améliorer et acquérir la couverture d'un signal commun de cellule Download PDF

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Publication number
WO2018137541A1
WO2018137541A1 PCT/CN2018/073166 CN2018073166W WO2018137541A1 WO 2018137541 A1 WO2018137541 A1 WO 2018137541A1 CN 2018073166 W CN2018073166 W CN 2018073166W WO 2018137541 A1 WO2018137541 A1 WO 2018137541A1
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symbol
enhanced
pbch
common signal
emf
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PCT/CN2018/073166
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English (en)
Chinese (zh)
Inventor
孙立新
丁颖哲
周明宇
陈华敏
王力
云翔
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北京佰才邦技术有限公司
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Publication of WO2018137541A1 publication Critical patent/WO2018137541A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Definitions

  • the present disclosure relates to the technical field of communication applications, and in particular to a coverage enhancement, acquisition method, apparatus, base station, and terminal for a common signal of a cell.
  • MF Multe Fire
  • LTE Long Term Evolution
  • WiFi Wireless Fidelity
  • the MF physical layer introduces a Listening Before Talk (WiFi)-based carrier sensing technology.
  • LBT Listening Before Talk
  • the MF introduces a Discovery Reference Signal (DRS), which includes the main downlink common control signals, including the MF primary synchronization signal (Multefire Primary Sync Signal, MF).
  • DRS Discovery Reference Signal
  • MF MF primary synchronization signal
  • MF-SSS MF-Synchronization Sync Signal
  • CRS Cell Reference Signal
  • MB-MF MF Master Information Block
  • SIB-MF MF System Information Block
  • DRS occupies 12 or 14 symbols (Symbol) in one downlink subframe.
  • the MIB-MF is transmitted through the MF broadcast channel MF-PBCH, and the SIB-MF is transmitted through a Physical Downlink Shared Channel (PDSCH), where the downlink shared channel is controlled by a physical downlink control channel (Physical).
  • the common search space (CSS) in the Downlink Control Channel, PDCCH) is scheduled.
  • the User Equipment (UE) may receive the DRS in the Discovery Signals Measurement Timing Configuration (DMTC) window for downlink synchronization, and receive the MIB-MF and the SIB-MF.
  • the MF cell transmits the CRS only in DRS subframes or other subframes with PDSCH transmission.
  • coverage enhancement is required.
  • the surveillance camera in the parking garage, the water meter and the electric meter installed in the basement because of the relatively large penetration loss, need to expand the signal quality, or enhance the transmission distance, that is, coverage enhancement (CE, coverage enhancement) . Therefore, coverage enhancement of the DRS is required, so that users or devices in deep fading can search for and access the MulteFire cell.
  • coverage enhancement CE, coverage enhancement
  • An object of the present disclosure is to provide a coverage enhancement, acquisition method, apparatus, base station, and terminal for a common signal of a cell, which are used to solve the problem that the public signal coverage enhancement of the cell is not solved in the prior art.
  • an embodiment of the present disclosure provides a coverage enhancement method for a cell common signal, which is applied to a base station, including:
  • the enhanced cell common signal is repeatedly transmitted on the determined frequency domain resource and/or time domain resource.
  • an embodiment of the present disclosure further provides a coverage enhancement apparatus for a cell common signal, which is applied to a base station, including:
  • a first determining module configured to determine, according to a degree of coverage enhancement preset by the cell, a frequency domain resource and a time domain resource that performs an enhanced enhanced cell common signal
  • a transmission module configured to repeatedly transmit the enhanced cell common signal on the determined frequency domain resource and/or time domain resource.
  • an embodiment of the present disclosure further provides a base station, including:
  • a first processor configured to determine, according to a degree of coverage enhancement preset by the cell, a frequency domain resource and a time domain resource that performs enhanced coverage of the cell common signal;
  • a first transmitter configured to repeatedly transmit the enhanced cell common signal on the determined frequency domain resource and/or time domain resource.
  • an embodiment of the present disclosure further provides a method for acquiring a common signal of a cell, which is applied to a terminal, and includes:
  • an embodiment of the present disclosure further provides a device for acquiring a common signal of a cell, which is applied to a terminal, and includes:
  • a second determining module configured to determine a frequency domain resource used for transmitting an enhanced cell common signal
  • an obtaining module configured to acquire an enhanced cell common signal that is repeatedly transmitted by the base station on the frequency domain resource.
  • an embodiment of the present disclosure further provides a terminal, including:
  • a second processor configured to determine a frequency domain resource for transmitting an enhanced cell common signal
  • a receiver configured to acquire an enhanced cell common signal that is repeatedly transmitted by the base station on the frequency domain resource.
  • the foregoing technical solution of the embodiment of the present disclosure determines, according to the degree of coverage enhancement preset by the cell, the frequency domain resource and the time domain resource that performs the coverage enhanced enhanced cell common signal; and the determined frequency domain resource and/or time domain resource. And transmitting the enhanced cell common signal repeatedly.
  • the embodiment of the present disclosure implements the coverage enhancement of the common signal of the cell by repeatedly transmitting the enhanced cell common signal on the frequency domain resource and/or the time domain resource, so that the user or device in the deep fading can also search for and access the current cell.
  • FIG. 1 is a first working flowchart of coverage enhancement of a cell common signal according to an embodiment of the present disclosure
  • FIG. 2 is a second working flowchart of coverage enhancement of a cell common signal according to an embodiment of the present disclosure
  • FIG. 3 is a first schematic diagram of an eMF-PBCH enhanced symbol according to an embodiment of the present disclosure
  • FIG. 4 is a second schematic diagram of an eMF-PBCH enhanced symbol according to an embodiment of the present disclosure
  • FIG. 5A is a third schematic diagram of an eMF-PBCH enhanced symbol according to an embodiment of the present disclosure.
  • FIG. 5B is a fourth schematic diagram of an eMF-PBCH enhanced symbol according to an embodiment of the present disclosure.
  • 6A is a schematic diagram of a first resource mapping of an eMF-PBCH according to an embodiment of the present disclosure
  • 6B is a schematic diagram of a second resource mapping of an eMF-PBCH according to an embodiment of the present disclosure
  • FIG. 7 is a schematic diagram of a third resource mapping of an eMF-PBCH according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of a fourth resource mapping of an eMF-PBCH according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of a fifth resource mapping of an eMF-PBCH according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic diagram of a sixth resource mapping of an eMF-PBCH according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic diagram of a seventh resource mapping of an eMF-PBCH according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic diagram of an eighth resource mapping of an eMF-PBCH according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic diagram of repeated transmission in a frequency domain in an embodiment of the present disclosure.
  • FIG. 14 is a schematic diagram of repeated transmission in a frequency domain and a time domain in an embodiment of the present disclosure
  • FIG. 15 is a flowchart of a method for acquiring a common signal of a cell according to an embodiment of the present disclosure
  • 16 is a schematic structural diagram of a coverage enhancement apparatus for a cell common signal according to an embodiment of the present disclosure
  • FIG. 17 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 18 is a schematic structural diagram of a device for acquiring a common signal of a cell according to an embodiment of the present disclosure
  • FIG. 19 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • the embodiments of the present disclosure provide a coverage enhancement, an acquisition method, a base station, and a terminal of a common signal of a cell, and solve the problem that there is no specific measure in the related art to improve the coverage of a common signal of a cell.
  • an embodiment of the present disclosure provides a coverage enhancement method for a cell common signal, which is applied to a base station, including:
  • Step 101 Determine, according to the degree of coverage enhancement preset by the cell, the frequency domain resource and the time domain resource that performs the coverage enhanced enhanced cell common signal.
  • the cell common signal here contains the MF main system information block. It may specifically be a discovery reference signal DRS in the MF network, such as MIB-MF, MF-PSS and MF-SSS.
  • DRS discovery reference signal
  • MIB-MF discovery reference signal
  • MIB-MF with coverage enhancement is defined as enhanced MIB.
  • - MF enhanced MIB-MF, eMIB-MF
  • the transport channel carrying the eMIB-MF is defined as eMF-PBCH (enhanced MF-PBCH, enhanced MF-PBCH).
  • the eMIB-MF may be an extension of the content of the MIB-MF for users or devices requiring coverage enhancement.
  • the information carried by the MF-PBCH and the eMF-PBCH is the same, and the bearer is extended. MIB-MF.
  • the new user can perform combined decoding on the MF-PBCH and the eMF-PBCH, and the old version user still decodes the MF-PBCH.
  • eMIB-MF can also be completely different from MIB-MF, and is carried by a new eMF-PBCH.
  • new users can only decode eMF-PBCH to obtain system information.
  • the coverage enhancement MF-PSS and MF-SSS are defined as enhanced MF-PSS (enhanced MF-PSS, eMF-PSS) and enhanced MF-SSS (enhanced MF-SSS, eMF-SSS).
  • the eMF-PSS is the same sequence as the MF-PSS, and the MF-PSS is extended to different time-frequency resources for transmission to achieve coverage enhancement. Therefore, the eMF-PSS includes MF-PSS, and the MF-PSS can also be decoded by an enhanced user or device.
  • the same design also applies to eMF-SSS.
  • the eMF-PSS can also be a different sequence from the MF-PSS, carrying other additional information. Then, the user or device with enhanced coverage cannot decode the MF-PSS.
  • the same design also applies to eMF-SSS.
  • the basic transmission time interval of the system is defined as TTI (Transmission Time Interval).
  • the TTI may contain a certain number of symbols, such as 1 TTI containing 14 OFDM symbols, or 12 OFDM symbols. Alternatively, 1 TTI contains 6 or 7 OFDM symbols.
  • the basic transmission bandwidth of the eMF-PBCH is defined as The basic transmission bandwidth of eMF-PSS is
  • the basic transmission bandwidth of eMF-SSS is
  • each channel can be independently decoded.
  • the number of resource blocks (RBs) in the frequency domain is a logical value, and each RB includes a certain number of subcarriers.
  • the value of this logic value may vary in different frequency bands or in different applications. Since the values of subcarrier spacing are different in different scenarios, such as different frequency bands or different applications, the absolute bandwidth of eMF-PBCH, eMF-PSS and eMF-SSS may vary with the scenario. Compared to MF-PBCH, Can be larger than 6 PRBs, or equal to 6 PRBs.
  • the logical resources within the basic transmission bandwidth of the eMF-PBCH can be mapped to the frequency domain in a centralized manner, that is, the physical resources of the eMF-PBCH are continuous in the frequency domain.
  • the logical resources within the eMF-PBCH basic transmission bandwidth are distributedly mapped to the frequency domain, ie, the physical resources of the eMF-PBCH are discrete in the frequency domain.
  • the logical resources of the eMF-PBCH are separated by a certain interval. Distributedly mapped to physical resources, where the interval is a value based on the PRB size.
  • the basic mapping unit of the eMF-PBCH is defined.
  • eMF-PBCH is a resource within a basic transmission bandwidth.
  • the value is based on the system bandwidth, for example Alternatively, it may also be based on a cell ID, for example,
  • a basic transmission bandwidth of the eMF-PBCH may be located at a specific location of the system bandwidth, the location being fixed, or based on a function, wherein the parameters of the function include the cell ID, the system frame number.
  • the deviation between the center frequency of the eMF-PBCH transmission and the center frequency of the communication system is defined as The above deviation may also define the distance between the upper boundary of the basic transmission bandwidth of the eMF-PBCH and the center frequency of the communication system. Or you can define the distance between the lower boundary of the basic transmission bandwidth of the eMF-PBCH and the center frequency of the system.
  • the communication system may specifically refer to time division synchronous code division multiple access TD-SCDMA, global microwave interconnection access WiMAX, LTE/LTE-A, LAA, MulteFire, and subsequent fifth, sixth generation, and Nth generations that may appear.
  • TD-SCDMA time division synchronous code division multiple access
  • WiMAX global microwave interconnection access
  • LTE/LTE-A long term evolution
  • LAA LAA
  • MulteFire MulteFire
  • the cell ID is a cell ID, which may be physical or logical; Is the system bandwidth, expressed as the number of RBs.
  • the value can be fixed, for example, fixed to 50 PRB, corresponding to a 10 MHz system bandwidth at 15 KHz subcarrier spacing.
  • the value can be the specific bandwidth of the system.
  • the eMF-PBCH can be transmitted in different frequency domain locations.
  • it is a relative logical value, which is expressed as the number of resource particles RE, and may also be a relative logical value, which is represented as the number of physical resource blocks PRB.
  • the absolute bandwidth value occupied by one PRB will be different. Therefore, the absolute bandwidth corresponding to the offset has different value.
  • the basic transmission time of eMF-PBCH is defined as The basic transmission time of eMF-PSS is
  • the basic transmission time of eMF-SSS is Here, with Expressed as the number of symbols in the time domain, indicating that each channel is independently decoded within the multiple symbols. Due to different scenarios, such as different frequency bands, or different applications, with The number of symbols included varies, and its value is not fixed. In addition, the duration of one symbol is different, so the absolute value of the basic transmission time of eMF-PBCH and eMF-PSS/eMF-SSS also changes.
  • the eMF-PBCH may occupy ⁇ 1, 2, 4, 5, 6 ⁇ symbols compared to the 4 symbol PBCHs of the LTE/LTE-A system and the 6 symbols MF-PBCH in the MF1.0 system.
  • eMIB-MF there may be enhancements to eMIB-MF in the MF system, without coverage enhancement of eMF-PSS and eMF-SSS.
  • Coverage enhancements are also available for both MF-MIB and MF-PSS/SSS.
  • the basic transmission time of the eMF-PBCH is different, and the resource mapping is also different.
  • multiple sets of time-frequency resources are used to transmit the eMF-PBCH.
  • the coverage enhancement in the time-frequency resource may be specifically performed on the eMF-PBCH occupying multiple sets of time-frequency resources, and the size of each group is the basic transmission bandwidth of the eMF-PBCH and the basic transmission time, and the basic transmission bandwidth is eMF.
  • the size of each of the above resources in the time domain is specifically the basic transmission time of the eMF-PBCH.
  • the frequency domain resource and the time domain resource of the enhanced cell common signal are determined, so that the enhanced cell common signal is repeatedly transmitted in the determined frequency domain resource and/or the time domain resource to implement coverage enhancement of the cell common signal.
  • the frequency domain resource and the time domain resource may be determined according to the actual coverage enhancement degree of the cell (such as supporting 3 times coverage enhancement), so as to save time. Frequency resources. In this example, only the user whose coverage enhancement is not greater than the actual capacity of the cell can detect the cell.
  • the foregoing step 101 may include: determining, according to a maximum coverage enhancement degree predefined by the cell, a frequency domain resource and a time domain resource that performs an enhanced enhanced cell common signal.
  • the base station does not according to the actual coverage enhancement degree of the current cell (such as currently only supports 3 times coverage), according to a predefined maximum coverage enhancement degree (such as 6 times coverage enhancement), so as to facilitate all different coverage. Users who enhance the requirements can detect the cell and understand the actual coverage enhancement capability of the cell.
  • Step 102 Repeatly transmitting the enhanced cell common signal on the determined frequency domain resource and/or time domain resource.
  • the enhanced cell common signal is repeatedly transmitted on the time domain resource; if the frequency domain resource includes multiple groups of resources, and the bandwidth of each group of resources For the basic transmission bandwidth, the enhanced cell common signal is repeatedly transmitted on the frequency domain resource, or the enhanced cell common signal is repeatedly transmitted on the frequency domain resource and the time domain resource, so as to implement the enhanced cell common
  • the coverage of the signal is enhanced.
  • the coverage enhancement method for the common signal of the cell determines the frequency domain resource and the time domain resource of the enhanced cell common signal for the coverage enhancement according to the degree of coverage enhancement preset by the cell; and the determined frequency domain resource and/or The enhanced cell common signal is repeatedly transmitted on the time domain resource.
  • the embodiment of the present disclosure implements the coverage enhancement of the common signal of the cell by repeatedly transmitting the enhanced cell common signal on the frequency domain resource and/or the time domain resource, so that the user or device in the deep fading can also search for and access the current cell.
  • an embodiment of the present disclosure further provides a coverage enhancement method for a cell common signal, which is applied to a base station, including:
  • Step 201 Perform resource mapping processing on the enhanced symbol corresponding to the enhanced cell common signal according to the degree of coverage enhancement preset by the cell, to obtain a time domain resource of the enhanced cell common signal.
  • the symbol in each transmission time interval TTI is mapped, and the enhanced symbol of the CRS is not mapped, and the symbol that does not include the CRS in the TTI is mapped to an enhanced symbol that does not include the CRS.
  • the cell common signal is eMF-PBCH
  • Possible values are ⁇ 1, 2, 4, 5, 6 ⁇ .
  • a basic transmission of eMF-PBCH requires 6 symbols, ie Wherein, the first enhanced symbol 1, the second enhanced symbol 2, the fifth enhanced symbol 5 and the sixth enhanced symbol 6 of the eMF-PBCH have a cell reference signal CRS, a third enhanced symbol 3 and a fourth There is no CRS on enhancement symbol 4.
  • a basic transmission of eMF-PBCH requires 5 symbols, ie Wherein, the first enhanced symbol 1 of the eMF-PBCH, the second enhanced symbol 2 and the fifth enhanced symbol 5 have a cell reference signal CRS, and the third enhanced symbol 3 and the fourth enhanced symbol 4 have no CRS.
  • a basic transmission of eMF-PBCH requires 4 symbols, ie
  • the first enhanced symbol 1 and the second enhanced symbol 2 of the eMF-PBCH have a cell reference signal CRS
  • the third enhanced symbol 3 and the fourth enhanced symbol 4 have no CRS
  • the first enhanced symbol 1 of the eMF-PBCH, the second enhanced symbol 2 and the fourth enhanced symbol 4 have a cell reference signal CRS
  • the enhanced symbol 3 has no CRS.
  • the enhanced symbols of the eMF-PBCH are one-to-one mapped to a corresponding number of symbols in one TTI, for example, OFDM symbols.
  • the eMF-PBCH symbol has a CRS, it indicates that the symbol must be mapped to an OFDM symbol with a CRS or to an OFDM symbol without a CRS.
  • mapping to an OFDM symbol without CRS some resource particles must be used to transmit the CRS, or some resource particles do not send any signal, ie, FIG. 6A, FIG. 6B, FIG. 7, FIG. 8, FIG. 9, FIG. 11 and Copied CRS or empty in Figure 12 (copied CRS or blank resources). If there is no CRS on a certain eMF-PBCH symbol, when doing resource mapping, it cannot be mapped to the OFDM symbol with CRS.
  • the foregoing step 201 includes mapping the symbols in each transmission time interval TTI, including the enhanced symbols of the CRS, and mapping the symbols not including the CRS in the TTI, and not including the enhanced symbols of the CRS.
  • the basic transmission bandwidth of the eMF-PBCH is proportional to the basic transmission time to maintain a particular coding efficiency.
  • the signaling overhead of eMIB-MF is 40 bits
  • the basic transmission bandwidth of eMF-PBCH is Corresponding For ⁇ 1, 2, 4, 5, 6 ⁇ .
  • the signaling overhead of eMIB-MF is 40 bits
  • the basics of eMF-PBCH can be obtained. Transmission bandwidth is
  • the OFDM symbol contained in one TTI is not an integer multiple of the basic transmission time of the eMF-PBCH
  • the partial symbols of the eMF-PBCH cannot be transmitted, and the network transmits only the partial symbols of the eMF-PBCH based on the puncturing (puncture).
  • the puncture is defined as that the eNB encodes the eMF-MIB according to a fixed code rate.
  • the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH, and the eMF-PBCH corresponds to five enhanced symbols, and the first one of the five enhanced symbols is enhanced.
  • the symbol, the second enhanced symbol, and the fifth enhanced symbol include CRS;
  • Configuring a symbol including a cell reference signal CRS or a symbol not including a CRS in each transmission time interval TTI, mapping an enhanced symbol including a CRS, and mapping a symbol not including the CRS in the TTI to an enhanced symbol not including a CRS include:
  • each of the TTIs includes 12 symbols (the normal length of the TTI is 14 symbols, the last two symbols are not available), and the primary synchronization signal PSS, the secondary synchronization signal SSS, the MF-PSS, and the MF-SSS are present in the TTI.
  • mapping the first enhanced symbol of the eMF-PBCH in the third symbol and the eighth symbol in each of the TTIs, and the fourth symbol in each of the TTIs Mapping a second enhanced symbol of the eMF-PBCH in a ninth symbol, mapping a third enhanced symbol of the eMF-PBCH in a sixth symbol and a tenth symbol in each of the TTIs, Mapping a fourth enhanced symbol of the eMF-PBCH in a seventh symbol and an eleventh symbol in each of the TTIs, in a fifth symbol and a twelfth symbol in each of the TTIs Mapping the fifth enhanced symbol of the eMF-PBCH.
  • the above implementation is also applicable to TTI containing 14 symbols, and 14 symbols are available. At this time, the last two symbols may not transmit signals, or only two of the symbols of the eMF-PBCH may be transmitted.
  • the above implementation manner 1 is applicable to the case where there is no eMF-PSS/SSS or there is eMF-PSS/SSS and eMF-PSS/SSS is orthogonal to eMF-PBCH.
  • the normal length of a TTI is 14 symbols, but in some cases, a TTI contains only 12 symbols, that is, the TTI is an abnormal TTI.
  • An example of resource mapping of eMF-PBCH in SSS, MF-PBCH, and MF-SIB is shown in FIG.
  • the eMF-PBCH is located at a distance from the center frequency.
  • the basic transmission time in the time domain is 5 symbols, and the basic transmission bandwidth in the frequency domain is 6 PRBs.
  • the transmission of the eMF-PBCH is only on one side of the system center frequency.
  • R0 and R1 represent the repeated transmission 0 and the repeated transmission 1 of the eMF-PBCH, respectively, where the eMF-PBCH can be repeated twice in one TTI.
  • mapping scheme shown in FIG. 6A is applicable to the case where the TTI exists in the PSS/SSS, MF-PSS/SSS, and MF-PBCH, and the length of the control region (the physical downlink control channel PDCCH) is not more than two symbols. .
  • Figure 6B shows the resource mapping of the eMF-PBCH when the normal length of the TTI is 12 symbols (expanded CP).
  • the fifth enhancement symbol is the resource mapping of the eMF-PBCH when the normal length of the TTI is 12 symbols (expanded CP).
  • the TTI has PSS/SSS, MF-PSS/SSS, and MF-PBCH.
  • the eMF-PBCH is located at the center of the system.
  • the basic transmission time in the time domain is 5 symbols, and the basic transmission bandwidth in the frequency domain is 6 PRBs.
  • R0 and R1 represent the repeated transmission 0 and the repeated transmission 1 of the eMF-PBCH, respectively, where the eMF-PBCH can be repeatedly transmitted twice in one TTI.
  • the length of the control region cannot be greater than two symbols due to the transmission of signals such as MF-PSS/SSS.
  • the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH, and the eMF-PBCH corresponds to 5 enhanced symbols, and the first enhanced symbol of the 5 enhanced symbols, the second CRS is included in the enhanced symbol and the fifth enhanced symbol; and
  • Configuring a symbol including a cell reference signal CRS or a symbol not including a CRS in each transmission time interval TTI, mapping an enhanced symbol including a CRS, and mapping a symbol not including the CRS in the TTI to an enhanced symbol not including a CRS include:
  • each of the TTIs includes 14 symbols, and the TTI has PSS and SSS (PSS/SSS is transmitted on #5 and #6), and there is no MF-PSS, MF-SSS, and MF-PBCH, then Mapping a first enhanced symbol of the eMF-PBCH in a third symbol and an eighth symbol in each of the TTIs, mapping in a fourth symbol and a ninth symbol in each of the TTIs a second enhanced symbol of the eMF-PBCH, mapping a third enhanced symbol of the eMF-PBCH in a tenth symbol and a thirteenth symbol in each of the TTIs, in each of the TTIs Mapping the fourth enhanced symbol of the eMF-PBCH in the eleventh symbol and the fourteenth symbol, mapping the eMF in the fifth symbol and the twelfth symbol in each of the TTIs - The fifth enhancement symbol of PBCH.
  • the resource mapping scheme corresponding to the foregoing implementation manner 2 is applicable to a case where there is no eMF-PSS/SSS or eMF-PSS/SSS and the frequency domain resources of the eMF-PSS/SSS are orthogonal to the frequency domain resources of the eMF-PBCH.
  • the eMF-PBCH may contain 6 central or non-central PRBs, or a part of 6 central or non-central PRBs, or no central or non-central 6 PRBs.
  • the length of the control region is not more than 2.
  • the time length of the control region cannot be greater than 2 symbols, and when the time length of the control region is greater than 2 symbols, the eNB needs to perform puncturing puncture on the eMF-PBCH.
  • the user always defaults to the eNB skipping resources for common control information, such as physical control format indication channel PCFICH, common PDCCH (cPDCCH), and common control information for scheduling SI.
  • the eNB may skip only the time-frequency resource corresponding to the aggregation level of 4, or may skip only the time-frequency resource corresponding to the aggregation level of 8, and may skip the eNB. All time-frequency resources corresponding to aggregation levels 4 and 8.
  • the foregoing step 201 may include: performing puncturing puncture processing on the enhanced symbol, and performing resource mapping processing on the enhanced symbol processed by the puncture to obtain a time domain resource of the enhanced cell common signal.
  • the eNB shall puncture the eMF-PBCH.
  • the spectrum resources occupied by the eMF-PBCH cannot be used for transmission of other data.
  • the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH
  • the eMF-PBCH corresponds to 6 enhanced symbols
  • the first enhanced symbol of the 6 enhanced symbols, the second CRS is included in the enhanced symbol, the fifth enhanced symbol, and the sixth enhanced symbol;
  • Configuring a symbol including a cell reference signal CRS or a symbol not including a CRS in each transmission time interval TTI, mapping an enhanced symbol including a CRS, and mapping a symbol not including the CRS in the TTI to an enhanced symbol not including a CRS include:
  • each of the TTIs includes 12 symbols, and there are PSS, SSS, MF-PSS, MF-SSS, and MF-PBCH in the TTI
  • the first symbol and the eighth in each of the TTIs Mapping a first enhanced symbol of the eMF-PBCH in a symbol, mapping a second enhanced symbol of the eMF-PBCH in a second symbol and a ninth symbol in each of the TTIs, in each Mapping a third enhanced symbol of the eMF-PBCH in a third symbol and a tenth symbol in the TTI, mapping the eMF in a fourth symbol and an eleventh symbol in each of the TTIs a fourth enhancement symbol of the PBCH, mapping a fifth enhancement symbol of the eMF-PBCH in a seventh symbol and a twelfth symbol in each of the TTIs, in each of the TTIs
  • the sixth enhanced symbol of the eMF-PBCH is mapped in the fifth symbol and the seventh symbol.
  • the eMF-PBCH is located at a distance from the center frequency.
  • the basic transmission time in the time domain is 6 symbols, and the basic transmission bandwidth in the frequency domain is 6 PRBs.
  • R0 and R1 represent repeated transmission 0 and repeated transmission 1 of eMF-PBCH, respectively.
  • the eMF-PBCH symbols 1 and 2 are mapped to the control area, and here, the length of the control area is always set to 2. Since the control region has common control signals, such as PCFICH, cPDCCH, and common scheduling signaling for scheduling public broadcast data, it is considered that the eNB is always puncture eMF-PBCH so as not to affect the original user or the new user to decode the common control signal. Therefore, the number of repetitions of the eMF-PBCH in one TTI may not be an integer.
  • the eMF-PBCH is located on both sides of the center of the system.
  • the eMF-PBCH may be located only on one side of the center of the system, and reference may be made to FIG. 7.
  • the implementation manner 3 is applicable to the current TTI, there are PSS/SSS, MF-PSS/SSS, MF-PBCH (located in the center 6 PRBs), or no PSS/SSS, MF-PSS/SSS, MF-PBCH (located 6 PRBs in the center, or only PSS/SSS (6 PRBs in the center).
  • the third implementation manner is applicable to the case where eMF-PSS/SSS exists in the system, and the spectrum resources of the eMF-PSS/SSS and the eMF-PBCH are orthogonal.
  • the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH
  • the eMF-PBCH corresponds to 6 enhanced symbols
  • the first enhanced symbol of the 6 enhanced symbols, the second CRS is included in the enhanced symbol, the fifth enhanced symbol, and the sixth enhanced symbol;
  • Configuring a symbol including a cell reference signal CRS or a symbol not including a CRS in each transmission time interval TTI, mapping an enhanced symbol including a CRS, and mapping a symbol not including the CRS in the TTI to an enhanced symbol not including a CRS include:
  • each of the TTIs includes 14 symbols, and there are no PSS, SSS, MF-PSS, MF-SSS, and MF-PBCH in the TTI
  • the third symbol and the eighth in each of the TTIs Mapping the first enhancement symbol of the eMF-PBCH in the symbols, mapping the second enhancement symbol of the eMF-PBCH in the fourth symbol and the ninth symbol in each of the TTIs Mapping a third enhanced symbol of the eMF-PBCH in a sixth symbol and a tenth symbol in the TTI, mapping the seventh symbol and the eleventh symbol in each of the TTIs a fourth enhancement symbol of the eMF-PBCH, mapping a fifth enhancement symbol of the eMF-PBCH in a fifth symbol and a twelfth symbol in each of the TTIs, in each of the TTIs
  • the sixth enhanced symbol of the eMF-PBCH is mapped in the thirteenth symbol and the fourteenth symbol.
  • the eMF-PBCH can occupy 6 PRBs of the system center, or a part of 6 PRBs, and the eNB cannot schedule other data in the eMF-
  • the PBCH occupies the resources.
  • the eMF-PBCH can be on one side or both sides of the system center frequency.
  • the eNB does not transmit the last two symbols of the eMF-PBCH, that is, performs a puncture process.
  • the above implementation method 4 is applicable to the case where there is no eMF-PSS/SSS or there is eMF-PSS/SSS and eMF-PSS/SSS is orthogonal to eMF-PBCH.
  • the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH
  • the eMF-PBCH corresponds to 5 enhanced symbols
  • the first one of the 5 enhanced symbols is enhanced
  • the second CRS is included in the enhanced symbol and the fifth enhanced symbol
  • Configuring a symbol including a cell reference signal CRS or a symbol not including a CRS in each transmission time interval TTI, mapping an enhanced symbol including a CRS, and mapping a symbol not including the CRS in the TTI to an enhanced symbol not including a CRS include:
  • each of the TTIs includes 14 symbols, and the sixth symbol and the seventh symbol in the TTI have an enhanced MF-SSS, and the seventh symbol has an enhanced MF-PSS, Mapping the first enhanced symbol of the eMF-PBCH in the third symbol and the eighth symbol in the TTI, mapping the eMF-PBCH in the fourth symbol and the ninth symbol in each of the TTIs a second enhancement symbol, mapping a third enhancement symbol of the eMF-PBCH in a tenth symbol and a thirteenth symbol in each of the TTIs, an eleventh in each of the TTIs Mapping the fourth enhanced symbol of the eMF-PBCH in the fourteenth symbol and mapping the fifth of the eMF-PBCH in the fifth symbol and the twelfth symbol in each of the TTIs Enhanced symbols.
  • the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH, and the eMF-PBCH corresponds to 4 enhanced symbols, and the first one of the 4 symbols is enhanced, and the second The enhanced symbol and the fourth enhanced symbol include CRS; and
  • Configuring a symbol including a cell reference signal CRS or a symbol not including a CRS in each transmission time interval TTI, mapping an enhanced symbol including a CRS, and mapping a symbol not including the CRS in the TTI to an enhanced symbol not including a CRS include:
  • each of the TTIs includes 12 symbols, and the sixth symbol and the seventh symbol in the TTI have an enhanced MF-SSS, and the seventh symbol has an enhanced MF-PSS, Mapping the first enhanced symbol of the eMF-PBCH in the eighth symbol and the twelfth symbol in the TTI, mapping the eMF in the fifth symbol and the ninth symbol in each of the TTIs a second enhancement symbol of the PBCH, mapping a third enhancement symbol of the eMF-PBCH in a third symbol and a tenth symbol in each of the TTIs, a fourth of each of the TTIs The fourth enhanced symbol of the eMF-PBCH is mapped in the symbol and the eleventh symbol.
  • Step 202 Determine, according to the basic transmission bandwidth of the enhanced cell common signal, a frequency domain resource of the enhanced cell common signal, where the basic transmission bandwidth is a resource block occupied by the enhanced cell common signal in a frequency domain. number.
  • multiple groups of resources are selected as the frequency domain resources of the enhanced cell common signal in the frequency domain, where the bandwidth of each group of resources is equal to the basic transmission bandwidth, and multiple groups of resources are discrete in the frequency domain or continuously.
  • the coverage enhanced user can detect the system information or achieve synchronization, and the coverage enhancement of the eMIB-MF is repeated through the frequency domain.
  • determining a center frequency of the first group of resources according to a deviation between a center frequency of the enhanced cell common signal transmission and a center frequency of the communication system, and according to a center frequency of the first group of resources and a preset hopping
  • the frequency interval is obtained, and the frequency domain locations of the group resources other than the first group of resources in the plurality of groups of resources are obtained.
  • each resource block block represents a signal transmission of the eMIB-MF within a basic transmission bandwidth, and each block can support 1-2 repetitive transmissions of the eMIB-MF.
  • Multiple sets of resources may be discrete or continuous in the frequency domain. The frequency domain location of each set of resources can be derived based on the duplicate index and the first set of starting resources.
  • the center frequency of the first resource block is based on the deviation
  • the frequency domain resources of other groups are obtained by adding a frequency hopping interval. get.
  • the frequency hopping interval is fixed, and the frequency domain resource positions of other groups are obtained based on the frequency domain resources of the first group and the repetition index n of the current group.
  • the above deviation It is a preset value or is obtained based on the physical cell ID.
  • the frequency domain resources are distributed on one side or both sides of the center frequency of the communication system.
  • Step 203 If the frequency domain resource is the basic transmission bandwidth, the enhanced cell common signal is repeatedly transmitted on the time domain resource.
  • the repeatedly transmitting the enhanced cell common signal on the time domain resource may specifically include repeatedly transmitting the enhanced cell common signal in each TTI or repeatedly transmitting the enhanced cell common signal in the subsequent TTI to implement coverage enhancement of the cell common signal.
  • Step 204 If the frequency domain resource includes multiple groups of resources, and the bandwidth of each group of resources is the basic transmission bandwidth, the enhanced cell common signal is repeatedly transmitted on the frequency domain resource, or the frequency domain resource is used. And transmitting the enhanced cell common signal repeatedly on the time domain resource.
  • the enhanced cell common signal is repeatedly transmitted through the frequency domain resource, or as shown in FIG. 14 , when the time domain resource includes multiple groups of resources and time When the domain resource includes multiple groups of resources, the enhanced cell common signal is repeatedly transmitted on the frequency domain resource and the time domain resource to implement coverage enhancement of the cell common signal.
  • the coverage enhancement method of the cell common signal of the embodiment of the present disclosure determines a frequency domain resource and a time domain resource for performing the coverage enhanced enhanced cell common signal; performing resource mapping processing on the enhanced symbol corresponding to the enhanced cell common signal, to obtain the enhancement The time domain resource of the community common signal.
  • a frequency domain resource of the enhanced cell common signal Determining, according to the basic transmission bandwidth of the enhanced cell common signal, a frequency domain resource of the enhanced cell common signal; if the frequency domain resource is the basic transmission bandwidth, repeatedly transmitting the enhanced cell on a time domain resource a common signal; if the frequency domain resource includes multiple groups of resources, and the bandwidth of each group of resources is the basic transmission bandwidth, the enhanced cell common signal is repeatedly transmitted on the frequency domain resource, or the frequency domain resource is And transmitting the enhanced cell common signal on the time domain resource to implement coverage enhancement of the cell common signal, so that the user or device in deep fading can also search for and access the current cell.
  • an embodiment of the present disclosure further provides a method for acquiring a common signal of a cell, which is applied to a terminal, and includes:
  • Step 1501 Determine a frequency domain resource for transmitting an enhanced cell common signal.
  • the base station repeatedly transmits the enhanced cell common signal on the frequency domain resource for transmitting the enhanced cell common signal.
  • the above step 1501 specifically includes:
  • Step 15011 Perform synchronization signal detection processing in the extended bandwidth to obtain a cell physical identifier PCI.
  • the synchronization signal detection process is performed in a bandwidth of 5 MHz or 10 MHz to obtain a cell physical identifier PCI.
  • Step 15012 Determine, according to the PCI, a frequency domain resource that enhances a common signal of a cell.
  • the size of the frequency domain resource is the basic transmission bandwidth of the enhanced cell common signal, determining, according to the PCI, a deviation between a center frequency point of the public signal transmission of the enhanced cell and a center frequency point of the communication system, and according to the Deviating the location of the frequency domain resource, where the basic transmission bandwidth is the number of resource blocks occupied by the enhanced cell common signal in the frequency domain.
  • the size of the frequency domain resource is a bandwidth of multiple groups of resources, determining, according to the PCI, a deviation between a center frequency point of the first group of resources in the plurality of groups of resources and a center frequency point of the communication system, according to the first group of resources Deviating the frequency of the center frequency from the center frequency of the communication system, determining a frequency domain location of the first group of resources, and obtaining, according to the location of the first group of resources and a preset frequency hopping interval, the plurality of resources in the group The frequency domain location of other group resources other than a group of resources.
  • Step 1502 Acquire an enhanced cell common signal that is repeatedly transmitted by the base station on the frequency domain resource.
  • the method for acquiring a common signal of a cell in the embodiment of the present disclosure determines a frequency domain resource for transmitting a common signal of the enhanced cell; and acquiring an enhanced cell common signal that is repeatedly transmitted by the base station on the frequency domain resource. This scheme enables users or devices in deep fading to also search for and access the current cell.
  • an embodiment of the present disclosure further provides a coverage enhancement apparatus for a cell common signal, which is applied to a base station, and includes:
  • the first determining module 1601 is configured to determine, according to a degree of coverage enhancement preset by the cell, a frequency domain resource and a time domain resource that performs the coverage enhanced enhanced cell public signal;
  • the transmitting module 1602 is configured to repeatedly transmit the enhanced cell common signal on the determined frequency domain resource and/or time domain resource.
  • the first determining module is specifically configured to determine a frequency domain resource and a time domain of the enhanced cell common signal that performs coverage enhancement according to a maximum coverage enhancement degree predefined by the cell. Resources.
  • the cell common signal includes an MF main system information block.
  • the first determining module includes:
  • a first determining submodule configured to perform resource mapping processing on the enhanced symbol corresponding to the enhanced cell common signal, to obtain a time domain resource of the enhanced cell common signal
  • a second determining submodule configured to determine, according to the basic transmission bandwidth of the enhanced cell common signal, a frequency domain resource of the enhanced cell common signal, where the basic transmission bandwidth is occupied by the enhanced cell common signal in a frequency domain The number of resource blocks.
  • the first determining submodule includes:
  • a first determining unit configured to perform puncturing puncture processing on the enhanced symbol, and perform resource mapping processing on the enhanced symbol processed by the puncture to obtain a time domain resource of the enhanced cell common signal.
  • the first determining module includes:
  • a mapping unit configured to map the symbol in each transmission time interval TTI, the enhanced symbol that includes the CRS, and map the symbol that does not include the CRS in the TTI, and not to include the enhanced symbol of the CRS.
  • a coverage enhancement apparatus for a cell common signal where the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH, and the eMF-PBCH corresponds to five enhanced symbols, and the fifth of the five enhanced symbols CRS is included in an enhancement symbol, a second enhancement symbol, and a fifth enhancement symbol; and
  • the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH
  • the eMF-PBCH corresponds to five enhanced symbols
  • the fifth of the five enhanced symbols CRS is included in an enhancement symbol, a second enhancement symbol, and a fifth enhancement symbol
  • the mapping unit includes:
  • a first mapping subunit configured to: if each of the TTIs includes 12 symbols, and the primary synchronization signal PSS, the secondary synchronization signal SSS, the MF-PSS, the MF-SSS, and the MF-PBCH exist in the TTI, Mapping the first enhanced symbol of the eMF-PBCH in the third symbol and the eighth symbol in the TTI, mapping the fourth symbol and the ninth symbol in each of the TTIs a second enhancement symbol of the eMF-PBCH, mapping a third enhancement symbol of the eMF-PBCH in a sixth symbol and a tenth symbol in each of the TTIs, in each of the TTIs Mapping the fourth enhanced symbol of the eMF-PBCH in the seven symbols and the eleventh symbol, mapping the eMF-PBCH in the fifth symbol and the twelfth symbol in each of the TTIs Five enhanced symbols.
  • a coverage enhancement apparatus for a cell common signal where the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH, and the eMF-PBCH corresponds to five enhanced symbols, and the fifth of the five enhanced symbols CRS is included in an enhancement symbol, a second enhancement symbol, and a fifth enhancement symbol; and
  • the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH
  • the eMF-PBCH corresponds to five enhanced symbols
  • the fifth of the five enhanced symbols CRS is included in an enhancement symbol, a second enhancement symbol, and a fifth enhancement symbol
  • the mapping unit includes:
  • a second mapping subunit configured to: if each of the TTIs includes 14 symbols, and the TTIs have PSS and SSS, and there are no MF-PSS, MF-SSS, and MF-PBCH, then each of the TTIs Mapping the first enhancement symbol of the eMF-PBCH in the third symbol and the eighth symbol, mapping the eMF-PBCH in the fourth symbol and the ninth symbol in each of the TTIs a second enhancement symbol, mapping a third enhancement symbol of the eMF-PBCH in a tenth symbol and a thirteenth symbol in each of the TTIs, an eleventh in each of the TTIs Mapping a fourth enhanced symbol of the eMF-PBCH in a symbol and a fourteenth symbol, mapping a fifth of the eMF-PBCH in a fifth symbol and a twelfth symbol in each of the TTIs Enhance the symbol.
  • a coverage enhancement apparatus for a cell common signal where the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH, and the eMF-PBCH corresponds to six enhanced symbols, and the sixth of the six enhanced symbols CRS is included in one enhanced symbol, the second enhanced symbol, the fifth enhanced symbol, and the sixth enhanced symbol; and
  • the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH
  • the eMF-PBCH corresponds to six enhanced symbols
  • the sixth of the six enhanced symbols CRS is included in one enhanced symbol, the second enhanced symbol, the fifth enhanced symbol, and the sixth enhanced symbol
  • the mapping unit includes:
  • a third mapping subunit configured to: if each of the TTIs includes 12 symbols, and the TTIs have PSS, SSS, MF-PSS, MF-SSS, and MF-PBCH, in each of the TTIs Mapping the first enhanced symbol of the eMF-PBCH in the first symbol and the eighth symbol, mapping the second of the eMF-PBCH in the second symbol and the ninth symbol in each of the TTIs Enhancement symbols, mapping a third enhancement symbol of the eMF-PBCH in a third symbol and a tenth symbol in each of the TTIs, a fourth symbol and a tenth in each of the TTIs Mapping a fourth enhanced symbol of the eMF-PBCH in one symbol, mapping a fifth enhanced symbol of the eMF-PBCH in a seventh symbol and a twelfth symbol in each of the TTIs, A sixth enhanced symbol of the eMF-PBCH is mapped in a fifth symbol and a seventh symbol in each of the TTIs.
  • a coverage enhancement apparatus for a cell common signal where the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH, and the eMF-PBCH corresponds to six enhanced symbols, and the sixth of the six enhanced symbols CRS is included in one enhanced symbol, the second enhanced symbol, the fifth enhanced symbol, and the sixth enhanced symbol; and
  • the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH
  • the eMF-PBCH corresponds to six enhanced symbols
  • the sixth of the six enhanced symbols CRS is included in one enhanced symbol, the second enhanced symbol, the fifth enhanced symbol, and the sixth enhanced symbol
  • the mapping unit includes:
  • a fourth mapping subunit configured to: if each of the TTIs includes 14 symbols, and the PTS, the SSS, the MF-PSS, the MF-SSS, and the MF-PBCH do not exist in the TTI, in each of the TTIs Mapping the first enhancement symbol of the eMF-PBCH in the third symbol and the eighth symbol, mapping the eMF-PBCH in the fourth symbol and the ninth symbol in each of the TTIs Two enhancement symbols, mapping a third enhancement symbol of the eMF-PBCH in a sixth symbol and a tenth symbol in each of the TTIs, a seventh symbol in each of the TTIs Mapping a fourth enhanced symbol of the eMF-PBCH in eleven symbols, mapping a fifth enhanced symbol of the eMF-PBCH in a fifth symbol and a twelfth symbol in each of the TTIs, A sixth enhanced symbol of the eMF-PBCH is mapped in a thirteenth symbol and a fourteenth symbol in each of the TTIs.
  • a coverage enhancement apparatus for a cell common signal where the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH, and the eMF-PBCH corresponds to five enhanced symbols, and the fifth of the five enhanced symbols CRS is included in an enhancement symbol, a second enhancement symbol, and a fifth enhancement symbol; and
  • the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH
  • the eMF-PBCH corresponds to five enhanced symbols
  • the fifth of the five enhanced symbols CRS is included in an enhancement symbol, a second enhancement symbol, and a fifth enhancement symbol
  • the mapping unit includes:
  • a fifth mapping subunit configured to: if each of the TTIs includes 14 symbols, and the sixth symbol and the seventh symbol in the TTI have enhanced MF-SSS, and the seventh symbol has an enhanced MF- PSS, mapping the first enhanced symbol of the eMF-PBCH in the third symbol and the eighth symbol in each of the TTIs, the fourth symbol and the ninth in each of the TTIs Mapping a second enhancement symbol of the eMF-PBCH in a symbol, mapping a third enhancement symbol of the eMF-PBCH in a tenth symbol and a thirteenth symbol in each of the TTIs Mapping the fourth enhanced symbol of the eMF-PBCH in the eleventh symbol and the fourteenth symbol in the TTI, mapping in the fifth symbol and the twelfth symbol in each of the TTIs The fifth enhanced symbol of the eMF-PBCH.
  • a coverage enhancement apparatus for a cell common signal where the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH, and the eMF-PBCH corresponds to four enhanced symbols, and the first of the four symbols CRS is included in the enhanced symbol, the second enhanced symbol, and the fourth enhanced symbol; and
  • the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH
  • the eMF-PBCH corresponds to four enhanced symbols
  • the first of the four symbols CRS is included in the enhanced symbol, the second enhanced symbol, and the fourth enhanced symbol
  • the mapping unit includes:
  • a sixth mapping subunit configured to: if each of the TTIs includes 12 symbols, and the sixth symbol and the seventh symbol in the TTI have enhanced MF-SSS, and the seventh symbol has an enhanced MF- PSS, mapping the first enhanced symbol of the eMF-PBCH in the eighth symbol and the twelfth symbol in each of the TTIs, the fifth symbol and the ninth in each of the TTIs Mapping a second enhancement symbol of the eMF-PBCH in a symbol, mapping a third enhancement symbol of the eMF-PBCH in a third symbol and a tenth symbol in each of the TTIs The fourth enhanced symbol of the eMF-PBCH is mapped in the fourth symbol and the eleventh symbol in the TTI.
  • a coverage enhancement apparatus for a cell common signal configured to select, in a frequency domain, multiple groups of resources as frequency domain resources of the enhanced cell common signal, where frequency of each group of resources
  • the width is equal to the basic transmission bandwidth, and the plurality of sets of resources are discrete or continuous in the frequency domain.
  • the second determining submodule is specifically configured to determine, according to a deviation between a center frequency point of the public signal transmission of the enhanced cell and a center frequency point of the communication system, to determine the first group of resources. a frequency domain location, and according to the central frequency point of the first group of resources and the preset frequency hopping interval, the frequency domain locations of the group resources other than the first group of resources in the plurality of groups of resources are obtained.
  • the deviation is a preset value or obtained according to a physical cell identifier ID.
  • the transmission module includes:
  • the first transmission submodule is configured to repeatedly transmit the enhanced cell common signal on the time domain resource if the frequency domain resource is the basic transmission bandwidth.
  • the transmission module includes:
  • a second transmission submodule configured to: if the frequency domain resource includes multiple groups of resources, and the bandwidth of each group of resources is the basic transmission bandwidth, repeatedly transmitting the enhanced cell common signal on the frequency domain resource, or And transmitting the enhanced cell common signal on the frequency domain resource and the time domain resource.
  • the frequency domain resource is distributed on one side or both sides of a center frequency point of the communication system.
  • the coverage enhancement apparatus for the cell common signal of the embodiment of the present disclosure determines a frequency domain resource and a time domain resource for performing the coverage enhanced enhanced cell common signal; and repeatedly transmitting the enhancement on the determined frequency domain resource and/or time domain resource.
  • Community public signal The embodiment of the present disclosure implements the coverage enhancement of the common signal of the cell by repeatedly transmitting the enhanced cell common signal on the frequency domain resource and/or the time domain resource, so that the user or device in the deep fading can also search for and access the current cell.
  • the coverage enhancement apparatus of the common signal of the cell is a device corresponding to the coverage enhancement method of the common signal of the foregoing cell, wherein all implementation manners in the foregoing method embodiments are applicable to the embodiment of the apparatus, and can also be achieved. The same technical effect.
  • an embodiment of the present disclosure further provides a base station, including:
  • the first processor 1701 is configured to determine, according to a degree of coverage enhancement preset by the cell, a frequency domain resource and a time domain resource that performs the coverage enhanced enhanced cell public signal;
  • the first transmitter 1702 is configured to repeatedly transmit the enhanced cell common signal on the determined frequency domain resource and/or time domain resource.
  • the first processor 1701 can also be configured to implement the functions implemented by all the modules in the coverage enhancement device embodiment of the cell common signal, and can also achieve the same function as the coverage enhancement device embodiment of the cell common signal. Technical effects.
  • an embodiment of the present disclosure further provides a device for acquiring a common signal of a cell, which is applied to a terminal, and includes:
  • a second determining module 1801 configured to determine a frequency domain resource used for transmitting an enhanced cell common signal
  • the obtaining module 1802 is configured to obtain an enhanced cell common signal that is repeatedly transmitted by the base station on the frequency domain resource.
  • the second determining module includes:
  • a third determining submodule configured to perform synchronization signal detection processing in the extended bandwidth, to obtain a cell physical identifier PCI;
  • a fourth determining submodule configured to determine, according to the PCI, a frequency domain resource that enhances a common signal of the cell.
  • the third determining submodule is configured to perform a synchronization signal detection process in a bandwidth of 5 MHz or 10 MHz to obtain a cell physical identifier PCI.
  • the fourth determining submodule includes:
  • a second determining unit configured to determine, according to the PCI, a center frequency of the public signal transmission of the enhanced cell and a center frequency of the communication system, if the size of the frequency domain resource is a basic transmission bandwidth of the enhanced cell common signal a deviation of a point, and obtaining a location of the frequency domain resource according to the deviation, where the basic transmission bandwidth is a number of resource blocks occupied by the enhanced cell common signal in a frequency domain.
  • a third determining unit configured to determine, according to the PCI, a deviation between a center frequency of the first group of resources and a center frequency of the communication system according to the PCI, if the size of the frequency domain resource is a bandwidth of multiple groups of resources Determining a frequency domain location of the first group of resources according to a deviation between a center frequency of the first group of resources and a center frequency of the communication system, and obtaining the multiple according to the location of the first group of resources and the preset frequency hopping interval The frequency domain location of the group resource other than the first group of resources in the group resource.
  • the apparatus for acquiring a common signal of a cell in the embodiment of the present disclosure determines a frequency domain resource for transmitting a common signal of the enhanced cell; and acquiring an enhanced cell common signal that is repeatedly transmitted by the base station on the frequency domain resource. This scheme enables users or devices in deep fading to also search for and access the current cell.
  • an embodiment of the present disclosure further provides a terminal, including:
  • a second processor 1901 configured to determine a frequency domain resource used for transmitting an enhanced cell common signal
  • the receiver 1902 is configured to acquire an enhanced cell common signal that is repeatedly transmitted by the base station on the frequency domain resource.
  • the second processor 1901 of the terminal of the embodiment of the present disclosure may be configured to implement the functions implemented by all the modules in the foregoing embodiment of the cell common signal acquisition device, and can also reach the implementation example of the device for acquiring the common signal of the cell. The same technical effect.
  • the terminal described in the embodiment of the present disclosure may be a mobile phone (or mobile phone), or other device capable of transmitting or receiving a wireless signal, including a user equipment (terminal), a personal digital assistant (PDA), a wireless modem, Wireless communication devices, handheld devices, laptop computers, cordless phones, wireless local loop (WLL) stations, CPE or Mifi capable of converting mobile signals into wifi signals, smart home appliances, or other non-human operations can spontaneously Equipment for communication in a mobile communication network, etc.
  • a user equipment terminal
  • PDA personal digital assistant
  • WLL wireless local loop
  • CPE wireless local loop
  • the objects of the present disclosure can also be achieved by running a program or a set of programs on any computing device.
  • the computing device can be a well-known general purpose device.
  • the objects of the present disclosure may also be realized by merely providing a program product including program code for implementing the method or apparatus. That is to say, such a program product also constitutes the present disclosure, and a storage medium storing such a program product also constitutes the present disclosure.
  • the storage medium may be any known storage medium or any storage medium developed in the future.
  • various components or steps may be decomposed and/or recombined.
  • a coverage enhancement method for a cell common signal, applied to a base station comprising:
  • the enhanced cell common signal is repeatedly transmitted on the determined frequency domain resource and/or time domain resource.
  • the coverage enhancement method of the common signal of the cell according to the A1, wherein the step of determining the frequency domain resource and the time domain resource of the enhanced cell common signal by the coverage enhancement according to the degree of coverage enhancement preset by the cell includes:
  • A3 The coverage enhancement method for a cell common signal according to A1, wherein the cell common signal comprises an MF main system information block.
  • A4 The coverage enhancement method for a common signal of a cell according to A1, wherein the step of determining a frequency domain resource and a time domain resource for performing enhanced coverage of a common cell common signal comprises:
  • A5 The coverage enhancement method for a cell common signal according to A4, wherein the step of performing resource mapping processing on the enhanced symbol corresponding to the enhanced cell common signal to obtain the time domain resource of the enhanced cell common signal includes :
  • A6 The coverage enhancement method for a cell common signal according to A4, wherein the step of performing resource mapping processing on the enhanced symbol corresponding to the enhanced cell common signal to obtain the time domain resource of the enhanced cell common signal includes :
  • the symbols in each transmission time interval TTI are mapped, and the enhanced symbols of the CRS are not mapped, and the symbols not including the CRS in the TTI are mapped, and the enhanced symbols of the CRS are not mapped.
  • A7 The coverage enhancement method for a cell common signal according to A6, wherein the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH, and the eMF-PBCH corresponds to 5 enhanced symbols, and 5 enhancements
  • the first enhanced symbol, the second enhanced symbol, and the fifth enhanced symbol in the symbol include a CRS;
  • each of the TTIs includes 12 symbols, and the primary synchronization signal PSS, the secondary synchronization signal SSS, the MF-PSS, the MF-SSS, and the MF-PBCH are present in the TTI, the third in each of the TTIs Mapping the first enhancement symbol of the eMF-PBCH in the symbol and the eighth symbol, mapping the second enhancement of the eMF-PBCH in the fourth symbol and the ninth symbol in each of the TTIs a symbol, mapping a third enhancement symbol of the eMF-PBCH in a sixth symbol and a tenth symbol in each of the TTIs, a seventh symbol and an eleventh in each of the TTIs
  • the fourth enhanced symbol of the eMF-PBCH is mapped in the symbol
  • the fifth enhanced symbol of the eMF-PBCH is mapped in the fifth symbol and the twelfth symbol in each of the TTIs.
  • A8 The coverage enhancement method for a cell common signal according to A6, wherein the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH, and the eMF-PBCH corresponds to 5 enhanced symbols, and 5 enhancements
  • the first enhanced symbol, the second enhanced symbol, and the fifth enhanced symbol in the symbol include a CRS;
  • each of the TTIs includes 14 symbols, and there are PSS and SSS in the TTI, and there are no MF-PSS, MF-SSS, and MF-PBCH, then the third symbol and the first in each of the TTIs Mapping the first enhancement symbol of the eMF-PBCH in eight symbols, mapping the second enhancement symbol of the eMF-PBCH in the fourth symbol and the ninth symbol in each of the TTIs Mapping the third enhanced symbol of the eMF-PBCH in the tenth symbol and the thirteenth symbol in the TTI, in the eleventh symbol and the fourteenth symbol in each of the TTIs Mapping a fourth enhanced symbol of the eMF-PBCH, mapping a fifth enhanced symbol of the eMF-PBCH in a fifth symbol and a twelfth symbol in each of the TTIs.
  • A9 The coverage enhancement method for a cell common signal according to A6, wherein the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH, and the eMF-PBCH corresponds to 6 enhanced symbols, and 6 enhancements
  • the first enhanced symbol, the second enhanced symbol, the fifth enhanced symbol, and the sixth enhanced symbol in the symbol include CRS;
  • each of the TTIs includes 12 symbols, and there are PSS, SSS, MF-PSS, MF-SSS, and MF-PBCH in the TTI
  • the first symbol and the eighth in each of the TTIs Mapping a first enhanced symbol of the eMF-PBCH in a symbol, mapping a second enhanced symbol of the eMF-PBCH in a second symbol and a ninth symbol in each of the TTIs, in each Mapping a third enhanced symbol of the eMF-PBCH in a third symbol and a tenth symbol in the TTI, mapping the eMF in a fourth symbol and an eleventh symbol in each of the TTIs a fourth enhancement symbol of the PBCH, mapping a fifth enhancement symbol of the eMF-PBCH in a seventh symbol and a twelfth symbol in each of the TTIs, in each of the TTIs
  • the sixth enhanced symbol of the eMF-PBCH is mapped in the fifth symbol and the seventh symbol.
  • the first enhanced symbol, the second enhanced symbol, the fifth enhanced symbol, and the sixth enhanced symbol in the symbol include CRS;
  • each of the TTIs includes 14 symbols, and there are no PSS, SSS, MF-PSS, MF-SSS, and MF-PBCH in the TTI
  • the third symbol and the eighth in each of the TTIs Mapping the first enhancement symbol of the eMF-PBCH in the symbols, mapping the second enhancement symbol of the eMF-PBCH in the fourth symbol and the ninth symbol in each of the TTIs Mapping a third enhanced symbol of the eMF-PBCH in a sixth symbol and a tenth symbol in the TTI, mapping the seventh symbol and the eleventh symbol in each of the TTIs a fourth enhancement symbol of the eMF-PBCH, mapping a fifth enhancement symbol of the eMF-PBCH in a fifth symbol and a twelfth symbol in each of the TTIs, in each of the TTIs
  • the sixth enhanced symbol of the eMF-PBCH is mapped in the thirteenth symbol and the fourteenth symbol.
  • the first enhanced symbol, the second enhanced symbol, and the fifth enhanced symbol in the symbol include a CRS;
  • each of the TTIs includes 14 symbols, and the sixth symbol and the seventh symbol in the TTI have an enhanced MF-SSS, and the seventh symbol has an enhanced MF-PSS, Mapping the first enhanced symbol of the eMF-PBCH in the third symbol and the eighth symbol in the TTI, mapping the eMF-PBCH in the fourth symbol and the ninth symbol in each of the TTIs a second enhancement symbol, mapping a third enhancement symbol of the eMF-PBCH in a tenth symbol and a thirteenth symbol in each of the TTIs, an eleventh in each of the TTIs Mapping the fourth enhanced symbol of the eMF-PBCH in the fourteenth symbol and mapping the fifth of the eMF-PBCH in the fifth symbol and the twelfth symbol in each of the TTIs Enhanced symbols.
  • A12 The coverage enhancement method for a cell common signal according to A6, wherein the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH, and the eMF-PBCH corresponds to 4 enhanced symbols, and 4 symbols CRS is included in the first enhancement symbol, the second enhancement symbol, and the fourth enhancement symbol; and
  • the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH
  • the eMF-PBCH corresponds to 4 enhanced symbols
  • 4 symbols CRS is included in the first enhancement symbol, the second enhancement symbol, and the fourth enhancement symbol
  • each of the TTIs includes 12 symbols, and the sixth symbol and the seventh symbol in the TTI have an enhanced MF-SSS, and the seventh symbol has an enhanced MF-PSS, Mapping the first enhanced symbol of the eMF-PBCH in the eighth symbol and the twelfth symbol in the TTI, mapping the eMF in the fifth symbol and the ninth symbol in each of the TTIs a second enhancement symbol of the PBCH, mapping a third enhancement symbol of the eMF-PBCH in a third symbol and a tenth symbol in each of the TTIs, a fourth of each of the TTIs The fourth enhanced symbol of the eMF-PBCH is mapped in the symbol and the eleventh symbol.
  • the method for enhancing a coverage of a common signal of a cell according to A4, wherein the step of determining a frequency domain resource of the public signal of the enhanced cell according to a basic transmission bandwidth of the public signal of the enhanced cell includes:
  • a plurality of sets of resources are selected as frequency domain resources of the enhanced cell common signal in the frequency domain, wherein a bandwidth of each set of resources is equal to the basic transmission bandwidth, and multiple sets of resources are discrete or continuous in a frequency domain.
  • A14 The method for enhancing coverage of a common signal of a cell according to A13, wherein the step of selecting a plurality of groups of resources in the frequency domain as the frequency domain resource of the public signal of the enhanced cell comprises:
  • Determining a center frequency of the first group of resources according to a deviation between a center frequency of the public signal transmission of the enhanced cell and a center frequency of the communication system, and according to a center frequency of the first group of resources and a preset frequency hopping interval, Obtaining a frequency domain location of the group resource other than the first group of resources in the plurality of groups of resources.
  • A15 The coverage enhancement method for a cell common signal according to A14, wherein the deviation is a preset value or obtained according to a physical cell identifier ID.
  • the coverage enhancement method for a cell common signal according to A4, wherein the step of repeatedly transmitting the enhanced cell common signal on the determined frequency domain resource and/or time domain resource comprises:
  • the enhanced cell common signal is repeatedly transmitted on the time domain resource.
  • the coverage enhancement method for a cell common signal according to A4, wherein the step of repeatedly transmitting the enhanced cell common signal on the determined frequency domain resource and/or time domain resource comprises:
  • the enhanced cell common signal is repeatedly transmitted on the frequency domain resource, or the frequency domain resource and the The enhanced cell common signal is repeatedly transmitted on the time domain resource.
  • A18 The method for enhancing coverage of a common signal of a cell according to A1, wherein the frequency domain resource is distributed on one side or both sides of a center frequency point of the communication system.
  • a coverage enhancement apparatus for a cell common signal, applied to a base station comprising:
  • a first determining module configured to determine, according to a degree of coverage enhancement preset by the cell, a frequency domain resource and a time domain resource that performs an enhanced enhanced cell common signal
  • a transmission module configured to repeatedly transmit the enhanced cell common signal on the determined frequency domain resource and/or time domain resource.
  • the coverage enhancement apparatus of the cell common signal according to B19 wherein the first determining module is specifically configured to determine, according to a maximum coverage enhancement degree predefined by the cell, a frequency of the enhanced cell common signal for performing coverage enhancement. Domain resources and timely domain resources.
  • a first determining submodule configured to perform resource mapping processing on the enhanced symbol corresponding to the enhanced cell common signal, to obtain a time domain resource of the enhanced cell common signal
  • a second determining submodule configured to determine, according to the basic transmission bandwidth of the enhanced cell common signal, a frequency domain resource of the enhanced cell common signal, where the basic transmission bandwidth is occupied by the enhanced cell common signal in a frequency domain The number of resource blocks.
  • a first determining unit configured to perform puncturing puncture processing on the enhanced symbol, and perform resource mapping processing on the enhanced symbol processed by the puncture to obtain a time domain resource of the enhanced cell common signal.
  • a mapping unit configured to map the symbol in each transmission time interval TTI, the enhanced symbol that includes the CRS, and map the symbol that does not include the CRS in the TTI, and not to include the enhanced symbol of the CRS.
  • the coverage enhancement apparatus for a cell common signal according to B24 wherein the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH, and the eMF-PBCH corresponds to 5 enhanced symbols, and 5 enhancements
  • the first enhanced symbol, the second enhanced symbol, and the fifth enhanced symbol in the symbol include a CRS;
  • the mapping unit includes:
  • a first mapping subunit configured to: if each of the TTIs includes 12 symbols, and the primary synchronization signal PSS, the secondary synchronization signal SSS, the MF-PSS, the MF-SSS, and the MF-PBCH exist in the TTI, Mapping the first enhanced symbol of the eMF-PBCH in the third symbol and the eighth symbol in the TTI, mapping the fourth symbol and the ninth symbol in each of the TTIs a second enhancement symbol of the eMF-PBCH, mapping a third enhancement symbol of the eMF-PBCH in a sixth symbol and a tenth symbol in each of the TTIs, in each of the TTIs Mapping the fourth enhanced symbol of the eMF-PBCH in the seven symbols and the eleventh symbol, mapping the eMF-PBCH in the fifth symbol and the twelfth symbol in each of the TTIs Five enhanced symbols.
  • the coverage enhancement apparatus for a cell common signal according to B24 wherein the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH, and the eMF-PBCH corresponds to 5 enhanced symbols, and 5 enhancements
  • the first enhanced symbol, the second enhanced symbol, and the fifth enhanced symbol in the symbol include a CRS;
  • the mapping unit includes:
  • a second mapping subunit configured to: if each of the TTIs includes 14 symbols, and the TTIs have PSS and SSS, and there are no MF-PSS, MF-SSS, and MF-PBCH, then each of the TTIs Mapping the first enhancement symbol of the eMF-PBCH in the third symbol and the eighth symbol, mapping the eMF-PBCH in the fourth symbol and the ninth symbol in each of the TTIs a second enhancement symbol, mapping a third enhancement symbol of the eMF-PBCH in a tenth symbol and a thirteenth symbol in each of the TTIs, an eleventh in each of the TTIs Mapping a fourth enhanced symbol of the eMF-PBCH in a symbol and a fourteenth symbol, mapping a fifth of the eMF-PBCH in a fifth symbol and a twelfth symbol in each of the TTIs Enhance the symbol.
  • the coverage enhancement apparatus for a cell common signal is an enhanced MF physical broadcast channel eMF-PBCH, and the eMF-PBCH corresponds to 6 enhanced symbols, and 6 enhancements
  • the first enhanced symbol, the second enhanced symbol, the fifth enhanced symbol, and the sixth enhanced symbol in the symbol include CRS;
  • the mapping unit includes:
  • a third mapping subunit configured to: if each of the TTIs includes 12 symbols, and the TTIs have PSS, SSS, MF-PSS, MF-SSS, and MF-PBCH, in each of the TTIs Mapping the first enhanced symbol of the eMF-PBCH in the first symbol and the eighth symbol, mapping the second of the eMF-PBCH in the second symbol and the ninth symbol in each of the TTIs Enhancement symbols, mapping a third enhancement symbol of the eMF-PBCH in a third symbol and a tenth symbol in each of the TTIs, a fourth symbol and a tenth in each of the TTIs Mapping a fourth enhanced symbol of the eMF-PBCH in one symbol, mapping a fifth enhanced symbol of the eMF-PBCH in a seventh symbol and a twelfth symbol in each of the TTIs, A sixth enhanced symbol of the eMF-PBCH is mapped in a fifth symbol and a seventh symbol in each of the TTIs.
  • the coverage enhancement apparatus for a cell common signal according to B24, wherein the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH, and the eMF-PBCH corresponds to 6 enhanced symbols, and 6 enhancements
  • the first enhanced symbol, the second enhanced symbol, the fifth enhanced symbol, and the sixth enhanced symbol in the symbol include CRS;
  • the mapping unit includes:
  • a fourth mapping subunit configured to: if each of the TTIs includes 14 symbols, and the PTS, the SSS, the MF-PSS, the MF-SSS, and the MF-PBCH do not exist in the TTI, in each of the TTIs Mapping the first enhancement symbol of the eMF-PBCH in the third symbol and the eighth symbol, mapping the eMF-PBCH in the fourth symbol and the ninth symbol in each of the TTIs Two enhancement symbols, mapping a third enhancement symbol of the eMF-PBCH in a sixth symbol and a tenth symbol in each of the TTIs, a seventh symbol in each of the TTIs Mapping a fourth enhanced symbol of the eMF-PBCH in eleven symbols, mapping a fifth enhanced symbol of the eMF-PBCH in a fifth symbol and a twelfth symbol in each of the TTIs, A sixth enhanced symbol of the eMF-PBCH is mapped in a thirteenth symbol and a fourteenth symbol in each of the TTIs.
  • the coverage enhancement apparatus for a cell common signal according to B24 wherein the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH, and the eMF-PBCH corresponds to 5 enhanced symbols, and 5 enhancements
  • the first enhanced symbol, the second enhanced symbol, and the fifth enhanced symbol in the symbol include a CRS;
  • the mapping unit includes:
  • a fifth mapping subunit configured to: if each of the TTIs includes 14 symbols, and the sixth symbol and the seventh symbol in the TTI have enhanced MF-SSS, and the seventh symbol has an enhanced MF- PSS, mapping the first enhanced symbol of the eMF-PBCH in the third symbol and the eighth symbol in each of the TTIs, the fourth symbol and the ninth in each of the TTIs Mapping a second enhancement symbol of the eMF-PBCH in a symbol, mapping a third enhancement symbol of the eMF-PBCH in a tenth symbol and a thirteenth symbol in each of the TTIs Mapping the fourth enhanced symbol of the eMF-PBCH in the eleventh symbol and the fourteenth symbol in the TTI, mapping in the fifth symbol and the twelfth symbol in each of the TTIs The fifth enhanced symbol of the eMF-PBCH.
  • the coverage enhancement apparatus for a cell common signal according to B24 wherein the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH, and the eMF-PBCH corresponds to 4 enhanced symbols, and 4 symbols CRS is included in the first enhancement symbol, the second enhancement symbol, and the fourth enhancement symbol; and
  • the enhanced cell common signal is an enhanced MF physical broadcast channel eMF-PBCH
  • the eMF-PBCH corresponds to 4 enhanced symbols
  • 4 symbols CRS is included in the first enhancement symbol, the second enhancement symbol, and the fourth enhancement symbol
  • the mapping unit includes:
  • a sixth mapping subunit configured to: if each of the TTIs includes 12 symbols, and the sixth symbol and the seventh symbol in the TTI have enhanced MF-SSS, and the seventh symbol has an enhanced MF- PSS, mapping the first enhanced symbol of the eMF-PBCH in the eighth symbol and the twelfth symbol in each of the TTIs, the fifth symbol and the ninth in each of the TTIs Mapping a second enhancement symbol of the eMF-PBCH in a symbol, mapping a third enhancement symbol of the eMF-PBCH in a third symbol and a tenth symbol in each of the TTIs The fourth enhanced symbol of the eMF-PBCH is mapped in the fourth symbol and the eleventh symbol in the TTI.
  • the coverage enhancement apparatus for the common signal of the cell according to B22 wherein the second determining submodule is configured to select, in the frequency domain, multiple groups of resources as frequency domain resources of the public signal of the enhanced cell, where each The bandwidth of the group resource is equal to the basic transmission bandwidth, and the plurality of groups of resources are discrete or continuous in the frequency domain.
  • the coverage enhancement apparatus of the common signal of the cell according to B31 wherein the second determining submodule is specifically configured to determine, according to a deviation between a central frequency point of the public signal transmission of the enhanced cell and a central frequency point of the communication system, a frequency domain of a group of resources, and obtaining a frequency domain of the group of resources other than the first group of resources in the plurality of groups of resources according to a center frequency of the first group of resources and a preset frequency hopping interval position.
  • B33 The coverage enhancement apparatus for a cell common signal according to B32, wherein the deviation is a preset value or obtained according to a physical cell identifier ID.
  • the first transmission submodule is configured to repeatedly transmit the enhanced cell common signal on the time domain resource if the frequency domain resource is the basic transmission bandwidth.
  • a second transmission submodule configured to: if the frequency domain resource includes multiple groups of resources, and the bandwidth of each group of resources is the basic transmission bandwidth, repeatedly transmitting the enhanced cell common signal on the frequency domain resource, or And transmitting the enhanced cell common signal on the frequency domain resource and the time domain resource.
  • B36 The coverage enhancement apparatus for a cell common signal according to B19, wherein the frequency domain resource is distributed on one side or both sides of a center frequency point of the communication system.
  • a base station comprising:
  • a first processor configured to determine, according to a degree of coverage enhancement preset by the cell, a frequency domain resource and a time domain resource that performs enhanced coverage of the cell common signal;
  • a first transmitter configured to repeatedly transmit the enhanced cell common signal on the determined frequency domain resource and/or time domain resource.
  • a method for acquiring a common signal of a cell, which is applied to a terminal includes:
  • the method for obtaining a common signal of a cell according to D38, wherein the determining the frequency domain resource for transmitting the common signal of the enhanced cell comprises:
  • the method for acquiring a common signal of a cell according to D39, wherein the step of performing a synchronization signal detection process in the extended bandwidth to obtain a physical identifier of the cell PCI includes:
  • the synchronization signal detection process is performed to obtain the cell physical identifier PCI.
  • the method for obtaining a common signal of a cell according to the D39, wherein, according to the PCI, the step of determining a frequency domain resource of the common signal of the cell includes:
  • the size of the frequency domain resource is the basic transmission bandwidth of the enhanced cell common signal, determining, according to the PCI, a deviation between a center frequency point of the public signal transmission of the enhanced cell and a center frequency point of the communication system, and according to the Deviating the location of the frequency domain resource, where the basic transmission bandwidth is the number of resource blocks occupied by the enhanced cell common signal in the frequency domain;
  • the size of the frequency domain resource is a bandwidth of multiple groups of resources, determining, according to the PCI, a deviation between a center frequency point of the first group of resources in the plurality of groups of resources and a center frequency point of the communication system, according to the first group of resources Deviating the frequency of the center frequency from the center frequency of the communication system, determining a frequency domain location of the first group of resources, and obtaining, according to the location of the first group of resources and a preset frequency hopping interval, the plurality of resources in the group The frequency domain location of other group resources other than a group of resources.
  • a device for acquiring a common signal of a cell which is applied to a terminal, and includes:
  • a second determining module configured to determine a frequency domain resource used for transmitting an enhanced cell common signal
  • an obtaining module configured to acquire an enhanced cell common signal that is repeatedly transmitted by the base station on the frequency domain resource.
  • a third determining submodule configured to perform synchronization signal detection processing in the extended bandwidth, to obtain a cell physical identifier PCI;
  • a fourth determining submodule configured to determine, according to the PCI, a frequency domain resource that enhances a common signal of the cell.
  • the device for acquiring a common signal of a cell according to E43 wherein the third determining submodule is configured to perform a synchronization signal detection process in a bandwidth of 5 MHz or 10 MHz to obtain a cell physical identifier PCI.
  • E45 The device for acquiring a common signal of a cell according to E43, wherein the fourth determining submodule comprises:
  • a second determining unit configured to determine, according to the PCI, a center frequency of the public signal transmission of the enhanced cell and a center frequency of the communication system, if the size of the frequency domain resource is a basic transmission bandwidth of the enhanced cell common signal a deviation of a point, and obtaining a location of the frequency domain resource according to the deviation, where the basic transmission bandwidth is a number of resource blocks occupied by the enhanced cell common signal in a frequency domain;
  • a third determining unit configured to determine, according to the PCI, a deviation between a center frequency of the first group of resources and a center frequency of the communication system according to the PCI, if the size of the frequency domain resource is a bandwidth of multiple groups of resources Determining a frequency domain location of the first group of resources according to a deviation between a center frequency of the first group of resources and a center frequency of the communication system, and obtaining the multiple according to the location of the first group of resources and the preset frequency hopping interval The frequency domain location of the group resource other than the first group of resources in the group resource.
  • a terminal comprising:
  • a second processor configured to determine a frequency domain resource for transmitting an enhanced cell common signal
  • a receiver configured to acquire an enhanced cell common signal that is repeatedly transmitted by the base station on the frequency domain resource.

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Abstract

L'invention concerne des procédés, des dispositifs, des stations de base et des terminaux pour améliorer et acquérir la couverture d'un signal commun de cellule. Le procédé d'amélioration de la couverture d'un signal commun de cellule consiste à : déterminer, selon un niveau d'amélioration de couverture de cellule préconfiguré, une ressource de domaine fréquentiel et une ressource de domaine temporel d'un signal commun de cellule amélioré utilisé pour effectuer une amélioration de couverture ; et transmettre de manière répétée, en utilisant la ressource de domaine fréquentiel et la ressource de domaine temporel déterminées, le signal commun de cellule amélioré.
PCT/CN2018/073166 2017-01-24 2018-01-18 Procédés, dispositifs, stations de base et terminaux pour améliorer et acquérir la couverture d'un signal commun de cellule WO2018137541A1 (fr)

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