WO2013166697A1

WO2013166697A1 - Method for determining basic sequence and physical resources of pucch and device for same

Info

Publication number: WO2013166697A1
Application number: PCT/CN2012/075332
Authority: WO
Inventors: 王轶; 徐月巧; 周华
Original assignee: 富士通株式会社
Priority date: 2012-05-11
Filing date: 2012-05-11
Publication date: 2013-11-14
Also published as: CN104170451B; CN104170451A

Abstract

A method for determining a basic sequence and physical resources of a physical uplink control channel (PUCCH) and a device for same. The method is used for PUCCH transmission of a user equipment in a Coordinated Multi-point (CoMP) transmission system, and comprises: selecting from related parameters a parameter for determining a basic sequence and physical resources for PUCCH transmission, the related parameters comprising a common parameter of cells and a user-specific parameter; and notifying the user equipment of the selected parameter. By means of the embodiment of the present invention, a network side can select for a user equipment a parameter for determining a basic sequence and physical resources of a PUCCH based on actual conditions or an optimization purpose, so as to avoid interferences or to randomize interferences, and improve the utilization efficiency of the PUCCH.

Description

Method and device for determining uplink control channel base sequence and physical resource

The present invention relates to the field of communications technologies, and in particular, to a method and apparatus for determining an uplink control channel base sequence and physical resources in a CoMP scenario. Background technique

In the Long Term Evolution Advanced (LTE-A) system, Coordinated Multi-point (CoMP) transmission/reception is included as one of the key technologies in the LTE-A system. The cooperative transmission scenario uses the geographically adjacent transmission points to cooperatively transmit signals to the user equipment. For the small-area users, the signal quality can be improved and the coverage can be expanded. In the 3GPP LTE-A standardization process, the following four scenarios are defined for the uplink and downlink CoMP (UL/DL CoMP):

Scenario 1: Homogenous Network with Intra-site CoMP (Scenario 2): Scenario 2: Homogenous network with high transmit power Remote Radio Head (RRH); Scenario 3: Macro cell range A heterogeneous network scenario with different cell identities (Cell IDs) that distribute low-power RRHs;

Scenario 4: The macro cell range distributes heterogeneous network scenarios with the same cell ID for low-power RRHs.

The Physical Uplink Control Channel (PUCCH) is used to carry correct/error (ACK/NACK) reception feedback for the downlink data channel (PDSCH), such as PUCCH format l/la/lb. In addition, the PUCCH can also be used to carry channel state information (CSI) of the downlink channel, such as PUCCH format 2/2a/2b. In Rel. 10, the uplink control channel PUCCH is composed of a constant envelope zero autocorrelation (CAZAC, Constant Amplitude Zero Auto Correlation) sequence 歹 ij (sequence) as the motif 歹L1, and its motif 歹L1 is divided into 30 sequence groups, the sequence The group label is denoted by M, t/e {0,1,2, ..., 29}; each sequence group contains one or two base sequences, and V denotes the label of the base sequence in a sequence group, v = 0, 1. The PUCCH base sequence of a user is determined by the sequence group label M and the base sequence label V in a sequence group. All users in the same cell adopt the same sequence group, and users in different cells adopt different sequence groups. Since different users of a cell use the same sequence group label, when two users occupy the same uplink physical block resource (PRB) to transmit PUCCH, they can pass different cyclic shifts (CS, Cyclic Shift) and/or different The orthogonal mask (0CC, Orthogonal Cover Code) ensures the orthogonality of PUCCH in the cell, thereby ensuring low inter-cell interference. At the same time, more Users can occupy the same CS and / or 0CC but occupy different PRBs to ensure their orthogonality.

The physical resource _U∞H occupied by the PUCCH corresponds to a combination of CS, 0CC and PRB. For the dynamic physical downlink shared channel (PDSCH) transmission, the physical resource _{U∞H of the} PUCCH format 1/la/lb is _controlled by the Physical Downlink Control Channel (PDCCH) of the PDSCH. The channel element (CCE, Control Channel Element) index (index) dynamically determines, " _UCCH = n _CCE + N^ _ccu , where " _eeE is the starting sequence number of the CCE of the PDCCH, and A3⁄4 _eeH is the cell common parameter, which is configured by the high layer signaling. .

In the process of implementing the present invention, the inventor found that in the uplink CoMP scenario of Release 11, the design of the above PUCCH does not work well, and there is no effective solution at present. The following examples are given.

FIG. 1 is a schematic diagram of a network architecture of a CoMP scenario 3. As shown in FIG. 1, the downlink physical control channel of CoMP UE1 is scheduled by the eNB, but its PUCCH is received by the macro base station (Macro eNB) and RRH1. If the PUCCH design method of the R10 is used, when the UE2 occupies the same PRB transmission PUCCH as the CoMP UE1 in the RRH1, the CoMP UE1 and the UE2 use different CAZAC sequence groups, because the correlation coefficient of different CAZAC sequences is not Zero, the PUCCH of the UE2 and the PUCCH of the CoMP UE1 interfere with each other.

In addition, in the CoMP scenario 4, the RRH and the eNB share one cell ID. If the PUCCH design of the existing PUCCH is used, the same sequence group of PUCCHs of all users can theoretically achieve ideal orthogonality for each user in the cell. However, in CoMP scenario 4, different RRHs use the same sequence group and cannot implement the cell splitting gain (Cel l Splitting Gain). On the other hand, due to the introduction of RRH and the number of users serving at the same time, the currently designed PUCCH cannot. Provide sufficient orthogonal resources such as CS, 0CC and PRB, so there will be a lot of interference between RRHs, ie inter-point interference. Therefore, in CoMP scenario 4, inter-point interference randomization enhancement techniques need to be considered.

It should be noted that the above description of the technical background is only for the purpose of facilitating the clear and complete description of the technical solutions of the present invention, and is convenient for understanding by those skilled in the art. The above technical solutions are not considered to be well known to those skilled in the art simply because these solutions are set forth in the background section of the present invention. Summary of the invention

An object of the embodiments of the present invention is to provide a method and a device for determining an uplink control channel base sequence and a physical resource, which can avoid interference or achieve interference randomization, and improve PUCCH utilization efficiency.

According to an aspect of an embodiment of the present invention, a base sequence and a physical resource for determining an uplink control channel are provided. The source method is used for uplink control channel transmission of user equipment in a coordinated multi-point transmission (CoMP) system, and the method includes:

Selecting, from the relevant parameters, a parameter for determining a base sequence and a physical resource of the uplink control channel transmission; wherein the related parameter includes a parameter common to the cell and a parameter specific to the user;

The selected parameter is notified to the user equipment, so that the user equipment determines the base sequence and physical resources of the uplink control channel transmission according to the parameter.

Another aspect of the present invention provides a method for determining a base sequence and a physical resource of an uplink control channel for uplink control channel transmission of a user equipment in a coordinated multi-point transmission (CoMP) system, the method comprising:

The user equipment receives a parameter of determining a base sequence and a physical resource of the uplink control channel that is selected by the serving cell from the relevant parameter; the related parameter includes a parameter shared by the cell and a parameter specific to the user; and the received parameter includes a common group of cells. The parameter either includes a set of user-specific parameters;

The base sequence and physical resources of the uplink control channel are determined according to the received parameters.

According to another aspect of the embodiments of the present invention, a method for transmitting uplink control information is provided, where the method includes:

Determining a base sequence and a physical resource of an uplink control channel by using the method provided by one aspect of the embodiments of the present invention;

The uplink control information is sent by using the determined base sequence and physical resources.

According to another aspect of the embodiments of the present invention, a base station is provided, where the base station includes:

a selection unit configured to select, from the relevant parameters, a parameter for determining a base sequence and a physical resource of the uplink control channel transmission; wherein the correlation parameter includes a parameter common to the cell and a parameter specific to the user;

The first notification unit is configured to notify the user equipment of the selected parameter, so that the user equipment determines a base sequence and a physical resource of the uplink control channel transmission according to the parameter.

According to another aspect of the present invention, a user equipment is provided, the user equipment includes: a first receiving unit, where the first receiving unit is configured to receive a determined uplink control channel selected by a serving cell from a related parameter. The base sequence and the parameters of the physical resource; the related parameters include parameters common to the cell and user-specific parameters; the received parameters include parameters common to a group of cells or include a set of user-specific parameters; And a processing unit configured to determine a base sequence and a physical resource of the uplink control channel according to the received parameter.

According to another aspect of the present invention, a user equipment is provided, where the user equipment includes: a first receiving unit and a processing unit;

And a sending unit configured to send uplink control information by using the base sequence and the physical resource determined by the processing unit.

Another aspect of the present invention provides a computer readable program, wherein when the program is executed in a base station, the program causes a computer to perform the above-described method of determining a base sequence and a physical resource of an uplink control channel in the base station .

According to another aspect of an embodiment of the present invention, a storage medium storing a computer readable program, wherein the computer readable program causes a computer to determine a base sequence and a physical resource of an uplink control channel in the base station.

According to another aspect of the present invention, a computer readable program is provided, wherein when the program is executed in a user equipment, the program causes the computer to perform the above determining a base sequence and a physical resource of the uplink control channel in the user equipment Methods.

According to another aspect of the present invention, a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform the above-described method of determining a base sequence and a physical resource of an uplink control channel in the user equipment .

According to another aspect of an embodiment of the present invention, a computer readable program is provided, wherein when the program is executed in a user equipment, the program causes the computer to execute the above method of transmitting the uplink control information in the user equipment.

According to another aspect of an embodiment of the present invention, a storage medium storing a computer readable program, wherein the computer readable program causes a computer to execute the above method of transmitting uplink control information in the user equipment.

The embodiments of the present invention have the following advantages: According to the embodiment of the present invention, the network side can dynamically select and determine the uplink control channel base sequence and physical resources for the user equipment from the parameters shared by the cell and the user-specific parameters according to actual conditions or optimization purposes. Therefore, the interference can be avoided or the interference randomization can be achieved, and the utilization efficiency of the PUCCH can be improved.

Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, The way the principle can be used. It should be understood that the embodiments of the invention are not limited in scope. The embodiments of the present invention include many variations, modifications, and equivalents within the scope of the appended claims.

Features described and/or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, in combination with, or in place of, features in other embodiments. .

It should be emphasized that the term "comprising" or "comprising", when used herein, refers to the presence of a feature, component, step or component, but does not exclude the presence or addition of one or more other features, components, steps or components. DRAWINGS

The above and other objects, features and advantages of the embodiments of the present invention will become more <RTIgt;

1 is a schematic diagram of a CoMP scenario 3;

2 is a flowchart of a method for determining a base sequence and a physical resource of an uplink control channel according to Embodiment 1 of the present invention; FIG. 3 is a flowchart of a method for determining a base sequence and a physical resource of an uplink control channel according to Embodiment 2 of the present invention; FIG. 5 is a flowchart of a method for determining a base sequence and a physical resource of an uplink control channel according to Embodiment 3 of the present invention; FIG. 5 is a flowchart of a method for determining a base sequence and a physical resource of an uplink control channel according to Embodiment 5 of the present invention; A flowchart of a method for determining a base sequence and a physical resource of an uplink control channel according to Embodiment 7 of the present invention; FIG. 7 is a schematic structural diagram of a base station according to Embodiment 11 of the present invention;

Figure 8 is a block diagram showing the structure of a base station according to Embodiment 12 of the present invention;

9 is a schematic structural diagram of a user equipment according to Embodiment 13 of the present invention;

Figure 10 is a schematic diagram showing the structure of a user equipment according to Embodiment 14 of the present invention;

11 is a schematic diagram of an application scenario of Embodiment 15 of the present invention;

12 is a schematic diagram of a PUCCH resource in FIG. 11;

13 to 17 are schematic diagrams of application scenarios of Embodiments 16 to 20 of the present invention. detailed description

Various embodiments of the present invention will be described below with reference to the accompanying drawings. These embodiments are merely exemplary and are not limiting of the invention. In order to enable those skilled in the art to readily understand the principles and implementation of the present invention The embodiment of the present invention is described by using an example of a method for determining a base sequence and a physical resource of an uplink control channel of a CoMP transmission system for PUCCH format 1/la/lb and PUCCH format 2/2a/2b. It will be appreciated, however, that the present invention is not limited to the above described systems and PUCCH transmissions, and is applicable to other systems involving determining the base sequence and physical resources of the uplink control channel.

In order to solve the problems existing in the various scenarios described in the background art, the inventors have found in the research which base sequence is used by the current uplink CoMP mode, for example, single-point reception or multi-point reception, and the reception point is downlink. The sending point is the same or different. On the other hand, which base sequence is used is also related to CoMP's optimization goal, to avoid interference as a target or to interfere with randomization. And in order to support flexible scheduling to obtain a larger CoMP gain, the base sequence needs to be dynamically changed, so that the physical resources of the PUCCH need to be dynamically changed to avoid interference. Therefore, the embodiments of the present invention provide a method for dynamically selecting a base sequence and a physical resource of a PUCCH to avoid interference or achieve interference randomization, and improve PUCCH utilization efficiency. The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

2 is a flow chart of a method for determining a base sequence and physical resources of an uplink control channel according to Embodiment 1 of the present invention. As shown in FIG. 2, the method is used for uplink control channel transmission of a user equipment in a coordinated multi-point transmission (CoMP) system. On the network side, the method includes:

Step 201: Select, from the relevant parameters, a parameter for determining a base sequence and a physical resource of the uplink control channel transmission, where the related parameter includes a parameter common to the cell and a parameter specific to the user;

Step 202: Notify the user equipment of the selected parameter, and enable the user equipment to determine a base sequence and a physical resource of the uplink control channel transmission according to the parameter.

It can be seen from the foregoing embodiment that the network side can dynamically select the parameters of the base sequence and the physical resource of the PUCCH for the CoMP UE from the parameters including the parameters common to the cell and the parameters specific to the user-specific parameters, so as to avoid interference or achieve interference randomization. The effect is to improve the utilization efficiency of PUCCH.

In this embodiment, the Cell-Speicific parameter shared by the cell, that is, the cell identifier N and the cell common parameter N _eai .

The user-specific (UE-Speicific) parameters may include: one or more user-specific physical resource indication indexes corresponding to user-specific virtual cell identities, or one or more corresponding to user-specific virtual cell identities Determining a parameter of the user-specific physical resource indication index, or including one or more sets of parameter information, and each set of parameter information includes a user-specific virtual cell identifier and a user-specific physical resource indication index corresponding to the user-specific virtual cell identifier Or include one or more sets of parameter information and Each set of parameter information includes a user-specific virtual cell identifier and a parameter corresponding to the user-specific virtual cell identifier for determining a user-specific physical resource indication index.

In this embodiment, the user equipment is a CoMP UE, and the user-specific virtual cell identifier is used to generate a base sequence and Cyclic Shift Hopping (CSH) of the PUCCH, which may be represented by “f”; The physical resource indication index is used to determine the CS, 0CC and PRB resources corresponding to the PUCCH, and is represented by "^^α"; the parameter for determining the user-specific object indication index can be represented by ^. Where is a positive integer.

In this embodiment, in step 201, the network side, for example, the base station of the serving cell to which the user equipment belongs, selects a base for determining the uplink control channel transmission from the relevant parameters according to the actual scheduling situation of the user equipment and different purposes. Sequence and physical resource parameters.

In this embodiment, in step 202, notifying the user equipment of the selected parameter includes: signaling the user equipment by using a physical layer or a MAC layer. The user equipment may be notified by one or more bits in the downlink control signaling transmitted by the scheduling downlink data channel (PDSCH) carried by the downlink control channel (PDCCH). The one or more bits are bits reserved in the downlink control signaling or newly added bits. However, it is not limited to the above signaling, and other signaling may be used to notify the user equipment.

In the embodiment of the present invention, before the step 201, the method further includes: configuring the related parameter or a parameter specific to the user; and notifying the user equipment of the configured related parameter or the parameter specific to the user. The network side may notify the user equipment of the configured related parameter or the user-specific parameter through high layer signaling.

In an embodiment of the present invention, the network side, for example, the base station of the serving cell of the user equipment, may be configured for the user equipment according to the distribution and load condition of the cell or the transmission point, the possible sending or receiving manner of the user equipment, and the like. Related parameters. That is, the network side configures user-specific parameters and parameters common to the cell.

In this case, when the selected parameter is dynamically indicated by the bit in the DCI, the number of bits used is log ₂ , where i is the number of sets of configuration parameters.

In another embodiment of the present invention, only the user-specific parameters are configured on the network side, and the parameters common to the cell are default parameters, which are pre-existing in the network side and the user equipment, and do not need to be configured again.

In this case, when the selected parameter is dynamically indicated by the bit in the DCI, the number of bits used is log ₂ (M + l).

In the embodiment of the present invention, for a lower version of a user, such as a legacy user equipment (Legacy UE), only a cell-specific (Cell-Speicific) parameter shared by a group of cells, that is, a cell identifier and a cell common parameter are used. N ^{1 V} P ⁽¹ U ⁾ CCH. °

For CoMPUE, in addition to the above-mentioned common cell-specific parameters, user-specific (UE-Specific) parameters such as (-' and ^.), or - ^., or 3⁄4 ^-', or N - ' and N are also included. _c -'.

In this embodiment, the network side can directly configure a user-specific physical resource indication index.

In addition, the user-specific PUCCH physical resource indication index "^^^ can be dynamically determined by the CCE index of the PDCCH. In this case, the network side may configure a parameter that determines the physical resource indication index ^„.

Ν^ - ¹ , so the user side can use this parameter Λ3⁄4^ -'' to determine ^;

For example, the formula (1) can be used to calculate the obtained. The formula (1) is: ^PUCCH ~ ^N CCE + PUCCH ( 1 )

In formula (1), _∞ is the starting sequence number of the CCE of the PDCCH. In addition, formulas other than (1) can also be used to determine that no further description is made here.

In this embodiment, when only or N^^" is configured, the user-specific virtual cell identifier corresponding to the ^-^ or N^^" is bound to other pilot symbols. For example, the other pilot symbols include a Demodulation Reference Signal (DM-RS) of the Uplink Data Channel (PUSCH) or a Channel State Information Reference Signal (CSI-RS) configured for the uplink CoMP reception point, which simplifies signaling.

In this embodiment, when the related parameters are configured, the related parameters may be configured for uplink control channel transmission that requires downlink ACK/NACK feedback and/or channel state information (CSI) feedback.

And when the configuration related parameters are transmitted for the uplink control channel that needs the downlink ACK/NACK feedback and the channel state information feedback, the user-specific virtual cell identifiers NS^ in the related parameters configured may be the same, and the configured physical resource indication indexes are respectively Independent and one-to-one correspondence, which simplifies signaling.

For example, the configured user-specific virtual cell identifiers are

The user-specific physical resource indication of the ACK/NACK feedback is configured as 'TM'..., and the user-specific physical resource indication index for CSI feedback is configured as "^^", "^^", . Or configuring a parameter for determining the user-specific physical resource indication index for ACK/NACK feedback as

PU-CCH' H H can also be configured with parameters for CSI feedback to "c".

In this embodiment, when configuring user-specific parameters, for a micro cell (such as RRH) or macro cell coverage The user equipment at the edge of the cover may be configured with one or more user-specific physical resource indication indexes or one or more parameters for determining a user-specific physical resource indication index, or a set of parameter information. For in micro cells (such as

The user equipment in the central area of the macro cell may be configured with a user-specific physical resource indication index or a parameter determining a user-specific physical resource indication index, or a set of parameter information.

In addition, the above parameters may be partially the same for different UEs.

It can be seen from the foregoing embodiment that the network side can configure related parameters including user-specific and user-specific parameters for the user equipment, or only configure user-specific parameters, so that the network side dynamically changes the user equipment according to the user-shared and user-specific related parameters. The parameters of the PUCCH base sequence and the physical resource are selected to avoid interference or achieve the purpose of interference randomization, and the utilization rate of the PUCCH is improved. In addition, when configuring user-specific parameters, you can configure only ' or C ' and 'bind with other pilot symbols', which saves signaling.

3 is a flow chart of a method for determining a base sequence and physical resources of an uplink control channel according to Embodiment 2 of the present invention. The method is used for uplink control channel transmission of user equipment in a coordinated multi-point transmission (CoMP) system. On the user equipment side, the method includes:

Step 301: The user equipment receives, from the relevant parameters, a parameter selected by the serving cell to determine a base sequence and a physical resource of the uplink control channel, where the related parameter includes a parameter shared by the cell and a parameter specific to the user; Include parameters common to a group of cells or include a set of user-specific parameters;

Step 302: Determine a base sequence and a physical resource of the uplink control channel according to the received parameter. In this embodiment, the base sequence and the physical resource of the PUCCH may be determined by using any existing manner, and details are not described herein. .

It can be seen from the foregoing embodiment that by receiving the parameters of the base sequence and physical resources of the PUCCH selected by the network side, the interference or the effect of interference randomization can be avoided, and the utilization efficiency of the PUCCH can be improved.

In this embodiment, the parameters specific to the user are as described in Embodiment 1, and details are not described herein again.

In this embodiment, the set of user-specific parameters includes: a user-specific virtual cell identifier Λ ^£ -' and a physical resource indication index corresponding to the user-specific virtual cell identifier or a user-specific virtual cell identifier Λ ^ ^£ -' and the physical resource indication index corresponding to the user-specific virtual cell identifier, twd ^

The user-specific virtual cell identifier can be bound to the user-specific virtual cell identifier of the other pilot symbols, which can simplify the signaling, as described in Embodiment 1, and details are not described herein again. In this embodiment, when the received parameter includes a user-specific virtual cell identifier Λ ^£ ” and a parameter NH^-′′ corresponding to the user-specific virtual cell identifier for determining a physical resource indication index, the step 302 is performed. The method may include: determining, according to the parameter N^-′ for determining the physical resource indication index, the physical resource indication index “3⁄4; according to the determined physical resource indication index “^^ϊ and the user-specific virtual cell identifier N^ - 'To determine the base sequence and physical resources of the uplink control channel.

In addition, the method further includes: the user equipment receives related parameters configured by the serving cell for the user equipment or user-specific parameters. The related parameters and the user-specific parameters are as described in Embodiment 1, and are not described here.

It can be seen that the user equipment can receive the parameters configured on the network side and the parameters selected by the network side for the UE, and the UE can avoid interference or reach by receiving the parameters of the base sequence and physical resources of the PUCCH selected by the network side. The effect of interference randomization improves the utilization efficiency of PUCCH.

4 is a flow chart of a method for determining a base sequence and physical resources of an uplink control channel according to Embodiment 3 of the present invention. In this embodiment, the network side configuration related parameters are taken as an example for description.

As shown in Figure 4, the method includes:

Step 401: The network side configures related parameters, where the related parameters include the parameters common to the cell and the user-specific, in the embodiment, the base station of the serving cell to which the user equipment belongs to the network side according to the distribution and load of the cell or the sending point, and the user equipment A possible transmission or reception mode, etc., for each user, one or more sets of user-specific parameters are configured; in addition, parameters common to the cells are also configured;

Wherein the common cell-specific cell (Cell-Speicific) user-specific parameter may comprise a cell identification parameter N and parameter N ^ _OT cell or common physical resource indication index in each group comprising a user-specific identifier Λ¾ for generating virtual PUCCH sequence ^£ - and user-specific PUCCH physical resource indication index.

Step 402: Notify the user equipment of the configured related parameters;

In this embodiment, the base station may notify the relevant parameter by using high layer signaling.

Step 403: The user equipment receives the related parameter configured by the network side.

Step 404: The network side selects, from the configured related parameters, a set of parameters for determining a PUCCH base sequence and a physical resource.

In this embodiment, the network side selects the relevant parameter according to the actual scheduling situation of the user equipment and different purposes. Dynamically selecting parameters for determining a base sequence and a physical resource of the uplink control channel transmission; wherein the selected parameter may be a parameter common to the cell, such as (A rcell „(1) , N _CCH ) or ( ); A set of user-specific parameters (N^ -', nm.

Step 405: The base station notifies the user equipment of the selected parameter.

In this embodiment, the base station notifies the user equipment by using a physical layer or a MAC layer signaling;

The user equipment may be notified by one or more bits in downlink control signaling (DCI) of a scheduled downlink data channel (PDSCH) carried by a downlink control channel (PDCCH);

The one or more bits are reserved bits or newly added bits in the downlink control signaling, but are not limited to the foregoing signaling, and other signaling may be used to notify the user equipment.

Step 406: The user equipment receives a parameter selected by the network side for it.

Step 407: The user equipment determines a base sequence and a physical resource according to the parameter.

In this embodiment, for example, the PUCCH base sequence is a CAZAC sequence. If the network side selects a set of user-specific parameters (N^ -' for it, the base sequence can be determined as follows:

r*PUCCH

1) Calculate the initialization state and sequence shift pattern of the pseudo-random sequence c using equations (2) and (3). The equations (2) and (3) are:

^C init

30

(2)

PUCCH

Fs A ”mod30

(3)

2) Generate PUCCH sequence by equation (4)

The formula (4) is:

RS

(4) In equation (4),

φ(η) is a preset sequence, such as Table 5.5.1.2-1 & Table 5.5.1.2-2 in TS 36.211; α represents cyclic displacement (CS), which is determined by elements such as ¹ PUCCH;

RS

M

s ^c =\2;

M represents a sequence group label, _M e {0, 1, 2, ..., 29}, and each sequence group contains one or two base sequences; V denotes the label of the base sequence in a sequence group, V = 0, 1;

For a user equipment, a PUCCH sent within one 只 occupies only one resource block (Resource

Block, B), its base sequence BS is only related to the sequence group label ", regardless of the base sequence label V, V = 0. In the slot, the sequence group label M is a group Hopping Pattern and The sequence shift pattern (Sequence Shift Pattern) is determined together. That is, the sequence group label M can be obtained by using equations (5) and (6):

^M = (/ _g h(" _s ) + / _ss ) ^mod30 , (5) ίθ sequence group hopping off

(6)

The X[c(8« _s + -2''] mod 30 sequence group hopping function is turned on in equations (5) and (6):

/^ indicates the sequence group hopping pattern, indicating the slot number, the range is [0~19] _;

/ _∞ denotes a sequence shift pattern, calculated by equation (2), and _C (j) = _C (8 + ) is a pseudo-random sequence.

From the above, it can be seen that the base sequence of the PUCCH can be obtained by using the formulas (2) to (6).

In this embodiment, the physical resource, that is, the CS, 0CC, and PRB resources are determined by -^3⁄4. For example, the PRB sequence number is obtained by the formula (7):

The PRB index m of PUCCH can be expressed as:

[3 universal cyclic prefix ( normal cyclic prefix )

c = \

[2 extended cyclic prefix] where ^N is the number of RBs occupied by PUCCH format 2/2a/2b, ^ "is the format of the mixed PRB

PUCCH one

The number of CSs occupied by 1/la/lb. The minimum interval of CS available for format 1/la/lb,

In this embodiment, if the parameter selected by the network side is a cell common parameter, that is, (N

The method is similar to the above, except that Λ ^£ " in the above formula is replaced with N when determining the PUCCH base sequence. In this embodiment, if the parameter selected by the network side is a cell common parameter, that is, N _CCH ), when determining the PUCCH base sequence according to the parameter, the method is similar to the above, and replacing N^-' in the above formula with N When determining a physical resource, the physical resource indication index needs to be first determined according to the following formula (7), and then the physical resource indication index is used to determine the physical resource. Equation (7) is as follows:

n "P ^{l U ⁾ CCH = _n "CCE + DN" P ⁽¹ U ⁾ CCH , ¹ '

It can be seen from the foregoing embodiment that the network side configures related parameters for the user equipment, where the direct configuration is user-specific.

5 PUCCH physical resources indicate the cable I d, and dynamically select a set of parameters to determine the PUCCH base sequence and physical resources, to avoid interference or achieve the purpose of interference randomization, and improve the utilization efficiency of PUCCH. In addition, the order of execution of the above steps may be adjusted according to actual conditions. For example, step 403 may be interchanged with step 404, or may be performed in parallel with step 406.

Embodiment 4 of the present invention further provides a method for determining a base sequence and a physical resource of an uplink control channel. In the present embodiment, steps similar to those of the embodiment 3 are not described, and only differences will be described.

Among them, the difference from Embodiment 3 is:

In step 401, among the configured user-specific parameters, the user-specific physical resource indication index C is not directly configured, but is configured to determine the parameter, for example, the parameter is Λ3⁄4^";

In step 404, if the network side selects a user-specific parameter, the user-specific parameter can be expressed as 1 ⁱ 5 ^J ( N ^l I ^U D ^E ,, N ¹ * P ^m U-CC ^U H ^EJ )· '

In step 407, formula (8) can be utilized when determining with the Λ3⁄4^ -'':

„H i _N d)_UE_i .

"PUCCH - "CCE τ " PUCCH O J o

It can be seen from the foregoing embodiment that the network side configures related parameters for the user equipment, where the user-specific configuration is not directly configured.

The PUCCH physical resource indicates the index -^ ^£ ^, but configures the parameter determining the 7^^, and dynamically selects a set of parameter 0 numbers to determine the PUCCH base sequence and the physical resource, which can avoid interference or achieve the purpose of interference randomization. Improve the utilization efficiency of PUCCH.

FIG. 5 is a flowchart of a method for determining a base sequence and physical resources of an uplink control channel according to Embodiment 5 of the present invention. In this embodiment, the network side configuration related parameters are taken as an example for description. The difference from the embodiments 3 and 4 is that the user-specific physical resource indication index ^ 3⁄4. 5 As shown in Figure 5, the method includes:

Step 501: The network side configures a related parameter, where the related parameter includes a parameter shared by the cell and a user-specific distribution of the base station according to the cell or the sending point of the serving cell to which the user equipment belongs to the network side in this embodiment. And the load situation, the possible sending or receiving mode of the user equipment, etc., configuring user-specific parameters for each user; in addition, configuring parameters common to the cell;

The cell-specific (Cel l-Speicific) parameters shared by the cells are as described in Embodiments 3 and 4, and are not described herein again;

The parameters specific to the user are different from those of the embodiments 3 and 4, and only the cell-specific physical resource indication index corresponding to the user-dedicated virtual cell identifier is configured. In this case, the user-dedicated virtual cell identifier ^^" and other guides Frequency symbol binding, thus saving signaling overhead;

For example, the pilot symbol is a DM-RS of a PUSCH or a CSI-RS configured by a UL CoMP receiving point, if the base station configures one or more groups of UE-specific virtual cell identifiers for the DM-RS or CSI-RS of the PUSCH. , t N ₁ ^l _D , N ₁ ² _D , . . . N _D , then determining the UE-specific virtual cell identity used by the PUCCH base sequence

N ^ PUSCH and a DM-RS or CSI-RS virtual cell identifier N ^ uniform, and the base station for the UE configured with the correspondence D ^N.

Step 502: Notify the user equipment of the configured related parameters.

Step 503: The user equipment receives the related parameter configured by the network side.

Step 504: The network side selects, from the configured related parameters, a set of parameters for determining a PUCCH base sequence and a physical resource.

In this embodiment, the network side dynamically selects, according to the actual scheduling situation of the user equipment and different purposes, parameters of the base sequence and physical resources used for determining the uplink control channel transmission from the relevant parameters;

The selected parameter may be a parameter common to the cell, such as (N , N _CCH (. , n _UCCH ); or a set of user-specific parameters (Λ^ ^£ ),

In this embodiment, when the user-specific parameter is selected, the virtual cell identifier used by the pilot symbol may be selected to be - for example, if the PUSCH DM-RS or the CSI-RS adopts N^ as the UE-specific virtual cell. Identification, then select the N^ as the UE-specific virtual cell identifier

, and choose the corresponding 4-^.

Step 505: The base station notifies the user equipment of the selected parameter.

In this embodiment, the base station notifies the user equipment by using a physical layer or a MAC layer, where the base station can notify by DCI; For example, when binding with the DM-RS of the PUSCH, since the network side needs to dynamically select a parameter of a group of PUSCH DMRS, the parameter of the PUCCH can be simultaneously indicated by the DCI indicating the PUSCH DMRS parameter. That is, one or two bits in the DCI indicate parameters of the PUCCH and the DMRS.

For example, when binding to a CSI-RS without being bound to a DM-RS, since the CSI-RS does not need to dynamically select a set of parameters, it is necessary to have 1 or 2 bits indicating "^^^ and Λ for PUCCH. ^, where N _ffl is the virtual cell identifier of the second set of CSI-RSs.

Step 506: The user equipment receives a parameter selected by the network side for it.

Step 507: The user equipment determines a base sequence and a physical resource according to the parameter.

In this embodiment, the manner of determining the base sequence and the physical resource is similar to that of Embodiment 3, and details are not described herein again. As shown in the foregoing embodiment, the network side configures related parameters for the user equipment, where only the user-specific PUCCH physical resource indication index ^ is configured, and the 'binding with the pilot symbol ^ simplifies signaling; and dynamically selects a group. The parameters are used to determine the PUCCH-based sequence and physical resources, to avoid interference or to achieve interference randomization, and to improve the utilization efficiency of PUCCH. In addition, the order of execution of the above steps may be adjusted according to actual conditions, similar to Embodiments 3 and 4, and details are not described herein again.

Embodiment 6 of the present invention also provides a method for determining a base sequence and a physical resource of an uplink control channel. In the present embodiment, the flow of steps similar to those of the embodiment 5 will not be described, and only the differences will be described.

Among them, the difference from the embodiment 5 is:

In step 501, among the configured user-specific parameters, the user-specific physical resource indication index is not directly configured, but is configured to determine the parameter, for example, the parameter is Λ3⁄4^3⁄4";

In step 504, if the network side selects a user-specific parameter, the user-specific parameter may be expressed as l ID '· ', N ^{1 V} P ⁽¹ U ⁾ -CCTMH- '· ) ^J .

In step 507, formula (8) can be utilized when determining with the Λ3⁄4^ -''.

As shown in the foregoing embodiment, the network side configures related parameters for the user equipment, where the user-specific PUCCH physical resource indication index is not directly configured, but only the parameter 确定3⁄4^ is configured, and a set of parameters is dynamically selected. Determining the PUCCH-based sequence and physical resources can avoid interference or achieve the purpose of interference randomization, and improve the utilization efficiency of PUCCH.

In the above-described Embodiments 3 to 6, the related parameters including the parameters of the cell sharing and the user-specific parameters are configured on the network side as an example. In addition, the parameters common to the cell may not be configured, but have been predicted at the base station. And the user equipment side, no configuration is required. And when the network side selects a parameter, it is still selected from the parameters common to the cell and the user. A method of determining the base sequence and physical resources of the PUCCH in this case will be described below with reference to the accompanying drawings.

6 is a flowchart of a method for determining a base sequence and physical resources of an uplink control channel according to Embodiment 7 of the present invention. In this embodiment, a user-specific parameter is configured on the network side as an example for description. The parameters common to the cell are default pre-existing in the network side base station and user equipment. As shown in Figure 6, the method includes:

Step 601: Configure a user-specific parameter on the network side.

In this embodiment, the base station of the serving cell to which the user equipment on the network side belongs configures one or more sets of users for each user according to the distribution and load condition of the cell or the transmission point, the possible sending or receiving manner of the user equipment, and the like. Dedicated parameters;

Each of the user-specific parameters includes a user-specific virtual identifier for generating a PUCCH sequence - and a user-specific PUCCH physical resource indication index.

Step 602: Notify the user equipment of the configured user-specific parameters;

In this embodiment, the base station may notify the user-specific parameters through high layer signaling.

Step 603: The user equipment receives the user-specific parameter configured by the network side.

Step 604: The network side selects, from the configured user-specific parameters and the parameters common to the pre-stored cells, a set of parameters for determining a PUCCH-based sequence and physical resources.

In this embodiment, the network side dynamically selects, according to the actual scheduling situation of the user equipment and the different purposes, parameters for determining the base sequence and physical resources of the uplink control channel transmission from the foregoing parameters;

The selected parameters are similar to the foregoing embodiments, and may be parameters common to the cell, such as ( , N _CCH ) or (W , n _CCH ); or may be a set of user-specific parameters (Λ^", U).

Step 605: The base station notifies the user equipment of the selected parameter;

In this embodiment, the base station notifies the user equipment by using a physical layer or a MAC layer, and the foregoing embodiment

3-6 is similar, and will not be described here.

Step 606: The user equipment receives a parameter selected by the network side for it.

Step 607: The user equipment determines a base sequence and a physical resource according to the parameter.

In this embodiment, the obtaining method is similar to that in Embodiment 3, and details are not described herein again.

It can be seen from the foregoing embodiment that the network side configures user-specific parameters for the user equipment, and directly configures the user-specific PUCCH physical resource indication index “;^, and dynamically selects a set of parameters to determine the PUCCH-based sequence and Physical resources can avoid interference or achieve the purpose of interference randomization, and improve the utilization efficiency of PUCCH. In addition, the order of execution of the foregoing steps may be adjusted according to actual conditions, as described in Embodiment 3, and details are not described herein again.

Embodiment 8 of the present invention further provides a method for determining a base sequence and a physical resource of an uplink control channel. In the present embodiment, the flow of steps similar to those of the embodiment 7 will not be described, and only the differences will be described.

Among them, the difference from the embodiment 7 is:

In step 601, among the configured user-specific parameters, the user-specific physical resource indication index is not directly configured, but is configured to determine the parameter, for example, the parameter is Λ3⁄4^ ”;

In step 604, if the network side selects a user-specific parameter, the user-specific parameter can be expressed as l ID , ^v PUCCH '

In step 607, formula (8) can be utilized when determining with the N^^-''.

It can be seen from the foregoing embodiment that the network side configures a user-specific parameter for the user equipment, where the user-specific PUCCH physical resource indication index -^ is not directly configured, but the parameter N _e ^-′′ is determined, and a group is dynamically selected. The parameters are used to determine the PUCCH-based sequence and physical resources, to avoid interference or to achieve interference randomization, and to improve the utilization efficiency of PUCCH.

Embodiment 9 of the present invention also provides a method for determining a base sequence and a physical resource of an uplink control channel. In this embodiment, the user-specific parameters are configured on the network side as an example. The parameters common to the cell are pre-stored in the network side base station and user equipment by default.

In the present embodiment, the flow of steps similar to those of the embodiment 7 will not be described, and only the differences will be described. Among them, the difference from the embodiment 7 is:

In step 601, among the configured user-specific parameters, only the user-specific physical resource indication index is configured. In this case, the user-dedicated virtual cell identifier ^^" is bound to other pilot symbols, and other guides are reused. User-specific virtual cell identifier of the frequency symbol, thus simplifying signaling;

This step is similar to the configuration of the user-specific parameters in the step 501 of the embodiment 5, and details are not described herein again. In step 604, if the network side selects a user-specific parameter, it may select ^^. according to the virtual cell identifier used by the pilot symbol; for example, if the PUSCH DM-RS or CSI-RS adopts N as the parameter

UE-specific virtual cell identifier, selecting the UE-specific N as a virtual cell identifier Λ¾ ^£ - '', and selects the corresponding ^ This step is similar to embodiment a user-specific parameters selected in step 504 in the case of Example 5, where No longer. It can be seen from the foregoing embodiment that the network side only configures the user-specific PUCCH physical resource indication index C for the user equipment and dynamically selects a set of parameters for determining the PUCCH-based sequence and physical resources, which can simplify signaling, avoid interference, or achieve interference randomization. Purpose, to improve the utilization efficiency of PUCCH.

Embodiment 10 of the present invention further provides a method for determining a base sequence and a physical resource of an uplink control channel. In this embodiment, the user-specific parameters are configured on the network side as an example for description. The parameters common to the cell are default pre-existing in the network side base station and the user equipment.

In the present embodiment, the flow of steps similar to those of the embodiment 9 will not be described, and only the differences will be described. Among them, the difference from the embodiment 9 is that:

In step 601, among the configured user-specific parameters, the user-specific physical resource indication index η _ρ ^ι ^-· is not configured, and the parameter N^^′ is determined, and the user-dedicated virtual cell identifier Λ^- 'Binding with other pilot symbols, reusing user-specific virtual cell identifiers of other pilot symbols, so that signaling can be simplified; in step 604, if the network side selects user-specific parameters, it can be based on the above pilot symbols. use

For example, if the PUSCH DM-RS or the CSI-RS adopts N as the UE-specific virtual cell identifier, the N is selected as the UE-specific virtual cell identifier N", and the corresponding N^^" is selected;

In step 607, formula (8) can be utilized when utilizing the determination.

It can be seen from the foregoing embodiment that the network side configures user-specific parameters for the user equipment, where the user-specific PUCCH physical resource indication index is not directly configured, but the parameter N^^. that determines the -^„. is configured and dynamically A set of parameters is selected to determine the PUCCH-based sequence and physical resources, which can avoid interference or achieve the purpose of interference randomization, and improve the utilization efficiency of PUCCH.

A person skilled in the art can understand that all or part of the steps of implementing the above embodiments can be completed by a program to instruct related hardware, and the program can be stored in a computer readable storage medium. All or part of the steps in the foregoing embodiment may be included, and the storage quality may include: ROM, RAM, magnetic disk, optical disk, and the like.

The embodiment of the invention further provides a base station and a user equipment, as described in the following embodiments. Since the principle of solving the problem between the base station and the user equipment is similar to the method for determining the PUCCH-based sequence and the physical resource of the foregoing apparatus, the implementation of the base station and the user equipment can refer to the implementation of the method, and the repeated description is not repeated.

Figure 7 is a block diagram showing the structure of a base station according to Embodiment 11 of the present invention. As shown in FIG. 7, the base station 700 includes: Selecting unit 701 and first notification unit 702;

The selecting unit 701 is configured to select, from the relevant parameters, a parameter for determining a base sequence and a physical resource of the uplink control channel transmission, where the related parameter includes a parameter common to the cell and a parameter specific to the user; 702. The 702 is configured to notify the user equipment of the selected parameter, so that the user equipment determines a base sequence and a physical resource of the uplink control channel transmission according to the parameter.

The workflow of the base station is similar to that of Embodiment 1, and details are not described herein again.

It can be seen from the foregoing embodiment that the network side can dynamically select parameters from the parameters shared by the cell and the user-specific parameters, and the UE determines the parameters of the base sequence and physical resources of the PUCCH by using the parameter, so as to avoid interference or interference. The effect of randomization improves the utilization efficiency of PUCCH.

In this embodiment, the user-specific parameters include one or more user-specific physical resource indication indexes corresponding to user-specific virtual cell identifiers, or one or more corresponding to user-specific virtual cell identifiers for determining. The user-specific physical resource indicates a parameter of the index, or includes one or more sets of parameter information, and each set of parameter information includes a user-specific virtual cell identifier and a user-specific physical resource indication index corresponding to the user-specific virtual cell identifier, Or including one or more sets of parameter information and each set of parameter information includes a user-specific virtual cell identifier and a parameter corresponding to the user-specific virtual cell identifier for determining a user-specific physical resource indication index.

In this embodiment, the first notification unit 702 notifies the user equipment by using a physical layer or a MAC layer. The user equipment may be notified by one or more bits in the downlink control signaling transmitted by the downlink data channel carried by the downlink control channel. The one or more bits are new or reserved bits.

Figure 8 is a block diagram showing the structure of a base station according to Embodiment 12 of the present invention. As shown in FIG. 7, the base station 800 includes: a selection unit 801 and a first notification unit 802, which are similar to the embodiment 10, and are not described herein again.

As shown in Figure 8, the base station further includes a configuration unit 803 and a second notification unit 804;

The configuration unit 803 is configured to configure the related parameter or configure the user-specific parameter. The second notification unit 804 is configured to notify the user equipment of the configured related parameter or the user-specific parameter.

In this embodiment, the second notification unit 804 notifies the user equipment of the configured related parameter or the user-specific parameter through high layer signaling.

In this embodiment, the base station 800 can configure the relevant parameters. In this case, the selecting unit 801 selects parameters for determining the PUCCH base sequence and physical resources from the configured related parameters. In addition, the base station 800 can be configured with user-specific parameters, and the parameters common to the cells are default parameters, which are pre-existing in the base station and the user equipment. In this case, the selection unit 801 can select parameters for determining the PUCCH-based sequence and physical resources from the configured user-specific parameters and the pre-stored cell-shared parameters.

In this embodiment, the configuration unit 803 can configure the relevant parameters or the user-specific parameters for the uplink control channel transmission used to feed back ACK/NACK and/or to feed back channel state information. And when the configuration unit 803 configures the user-specific parameters for the uplink control channel transmission for feeding back ACK/NACK and feedback CSI, the configured user-specific virtual cell identifiers may be the same, and the user-specific physical resource indication indexes are independent. And corresponding to the virtual cell identifier. Specifically, as described in Embodiment 1, no further details are provided herein.

In this embodiment, the working process of the base station is similar to that in Embodiment 3-10, and details are not described herein again.

According to the foregoing embodiment, the network side may configure related parameters or user-specific parameters for the UE, and dynamically select parameters from the parameters shared by the cell and the user-specific parameters, and the UE determines the base sequence of the PUCCH by using the parameter. And the parameters of the physical resources can avoid the interference or achieve the effect of interference randomization, and improve the utilization efficiency of the PUCCH.

Figure 9 is a block diagram showing the structure of a user equipment according to Embodiment 13 of the present invention. As shown in FIG. 9, the user equipment 900 includes: a first receiving unit 901 and a processing unit 902;

The first receiving unit 901 is configured to receive, by the serving cell, a parameter of determining a base sequence and a physical resource of the uplink control channel selected from the relevant parameter; the related parameter includes a parameter shared by the cell and a parameter specific to the user; The parameter includes a parameter common to a group of cells or includes a set of user-specific parameters. The processing unit 902 is configured to determine a base sequence and a physical resource of the uplink control channel according to the received parameter.

In this embodiment, the workflow of the user equipment 900 is similar to that of Embodiment 2, and details are not described herein again. In this embodiment, the user-specific parameters may include one or more user-specific physical resource indication indexes corresponding to user-specific virtual cell identifiers, or one or more corresponding to user-specific virtual cell identifiers. Determining a parameter of the user-specific physical resource indication index, or including one or more sets of parameter information, and each set of parameter information includes a user-specific virtual cell identifier and a user-specific physical resource indication index corresponding to the user-specific virtual cell identifier Or including one or more sets of parameter information, and each set of parameter information includes a user-specific virtual cell identifier and a parameter corresponding to the user-specific virtual cell identifier for determining a user-specific physical resource indication index;

The set of user-specific parameters may include: a user-specific virtual cell identifier and a virtual virtuality with the user a physical resource indication index corresponding to the cell identifier; or a user-specific virtual cell identifier and a parameter for determining a physical resource indication index corresponding to the user-specific virtual cell identifier.

The above parameters are similar to the above embodiments, and are not described herein again.

It can be seen from the above embodiment that the UE can avoid the interference or achieve the effect of interference randomization by receiving the parameters of the base sequence and the physical resources of the PUCCH selected by the network side, and improve the utilization efficiency of the PUCCH.

Figure 10 is a block diagram showing the structure of a user equipment according to Embodiment 14 of the present invention. As shown in FIG. 10, the user equipment 1000 includes: a first receiving unit 1001 and a processing unit 1002, and its function is similar to that of Embodiment 13, and details are not described herein again.

In this embodiment, when the received parameter includes a user-specific virtual cell identifier and a parameter for determining a physical resource indication index corresponding to the user-specific virtual cell identifier, the processing unit 1002 includes: a first determining unit and a second determining unit (not shown); wherein the first determining unit is configured to determine the physical resource indication index according to the parameter for determining a physical resource indication index; the second determining unit is configured to be configured according to The determined physical resource indication index and the user-specific virtual cell identity determine a base sequence and physical resources of the uplink control channel.

As shown in FIG. 10, the user equipment 1000 further includes a second receiving unit 1003, and the second receiving unit 1003 is configured to receive the related parameter or the user-specific parameter configured by the serving cell for the user equipment.

In this embodiment, the workflow of the user equipment is similar to that in the embodiment 3-10, and details are not described herein again. According to the foregoing embodiment, the parameters that are shared by the cell and the user-specific parameters are dynamically selected by the UE, and the UE determines the parameters of the base sequence and the physical resource of the PUCCH by using the parameter, so as to avoid interference or achieve random interference. The effect of the improvement, improve the utilization efficiency of PUCCH.

Embodiment 15 of the present invention also provides a method of transmitting a PUCCH. This method is similar to the process performed by Embodiments 1 and 3-10 on the network side, and details are not described herein again.

On the user equipment side, the method includes: determining a base sequence and a physical resource of the uplink control channel by using the method described in Embodiment 2-10; and transmitting uplink control information by using the determined base sequence and the physical resource.

Embodiment 16 of the present invention further provides a user equipment, which includes the components described in Embodiments 13 and 14, and further includes a transmitting unit configured to determine the base determined by the processing unit The sequence and physical resources send uplink control information.

In the foregoing embodiment, the base station may be a base station of the serving cell to which the user equipment belongs, such as a macro base station or a micro base station (RRH); the user equipment may be any terminal equipment, such as a mobile phone, a PDA, a computer, or the like. The base station and the user The working process of the device is as described in the foregoing embodiment, and details are not described herein again.

The embodiment of the present invention further provides a computer readable program, wherein when the program is executed in the base station, the program causes the computer to execute the method of determining the base sequence and the physical resource as described in Embodiments 1, 3 to 10 in the base station.

The embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the computer to perform a method of determining a base sequence and a physical resource as described in Embodiments 1, 3 to 10 in a base station.

The embodiment of the present invention further provides a computer readable program, wherein when the program is executed in the user equipment, the program causes the computer to execute the method for determining the base sequence and the physical resource as described in Embodiments 2, 3-10 in the user equipment. .

The embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the computer to execute the method of determining the base sequence and the physical resource as described in Embodiments 2 to 3-10 in the user equipment.

The embodiment of the present invention further provides a computer readable program, wherein when the program is executed in the base station, the program causes the computer to execute the method of transmitting the PUCCH as described in Embodiments 1, 3 to 10 in the base station.

The embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the computer to execute the method of transmitting the PUCCH as described in Embodiments 1, 3-10 in the base station.

The embodiment of the present invention further provides a computer readable program, wherein when the program is executed in the user equipment, the program causes the computer to execute the method of transmitting the PUCCH as described in Embodiment 15 in the user equipment.

The embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the computer to execute the method of transmitting the PUCCH as described in Embodiment 15 in the user equipment.

It can be seen from the above embodiments that the network side is flexibly configured and dynamically selected for determining by using the embodiment of the present invention.

The parameters of the PUCCH-based sequence and the physical resource enable the user equipment to determine the PUCCH sequence and physical resources according to the selected parameters, thereby avoiding interference or achieving randomization of interference, and solving the problems in the current technology. The method for determining a PUCCH-based sequence and physical resources according to an embodiment of the present invention will be described in detail below with reference to specific scenarios.

Example 1 :

FIG. 11 is a schematic diagram of a scenario according to Embodiment 15 of the present invention. As shown in Figure 11, the scene is scene 4. In the embodiment of the present invention, the configuration of the relevant parameters for each user equipment is taken as an example for description.

According to the prior art, under scenario 4, the user equipment UE served by Macro and Pico has only one set of cell common parameters (W^^P^^CCH). It can be seen from the above embodiment that the network side can configure each user equipment with parameters common to the user and one or more sets of user-specific -' and / or -' sums.

In the scenario shown in FIG. 11, the network side configures a set of user-specific parameters and parameters common to a group of cells (N and A _eH ) for the UE (CoMP UE), and configures two sets of parameters. For example, the user-specific parameter is Pico RRH1 dedicated parameter, Ν^ _Η ^{Ε ι} = , Ν^- ^ι = Ν^

When the user equipment is between the Pico cell and the Macro cell, the PUCCH is simultaneously received by the macro base station (eNB) and the RRH1, and the base station eNB selects the parameter (and N^ _CCH ) common to the cell for the user equipment UE, and notifies the After receiving the parameter selected by the base station, the UE determines the PUCCH base sequence and the physical resource according to the parameter, so as to avoid interference between CoMP users and interference to low-level user equipment.

When the UE moves to the Pico center, the PUCCH is only received by RRH1, at which point the base station selects user-specific parameters for the user and

And notifying the user equipment UE, after receiving the parameter selected by the base station, the UE determines the PUCCH base sequence and the physical resource according to the parameter, so as to achieve the effect of interference randomization.

Figure 12 is a schematic diagram of a physical resource block (PRB) corresponding to two configured parameters. Figure 12 is only for illustration, and does not limit the relationship of physical resource blocks corresponding to two sets of parameters. The physical resource blocks may be adjacent or non-adjacent, and the mutual positions are not limited.

Example 2:

FIG. 13 is a schematic diagram of a scenario according to Embodiment 16 of the present invention. As shown in Figure 13, the scene is scene 3. In the embodiment of the present invention, the configuration of the relevant parameters for each user equipment is taken as an example for description. According to the prior art, in scenario 3, the cell common parameters ( ^N and ) corresponding to the user equipment served by the Macro are different from the cell common parameters (^^ and ^!!^) corresponding to the user equipment served by Pi _C0 . In the embodiment of the present invention, each user can be configured with multiple sets of user-specific - 'and ^ ^^― so that the user served by Macro and the user served by Pico can use the same user-specific" and

_N (V)_UE_i

" puccH o

When the macro is the serving cell of the user, the base station can configure two sets of parameters for the user equipment, and the first group of parameters are:

^ PUCCH ~ ^ PUCCH ⁷丄, ID —丄, ID, the second set of parameters are: ^ PUCCH ~ ^ PUCCH ' 丄, ID —丄, ID. When the user equipment UE is in the location (1) and the PUCCH is only received by the eNB, the eNB selects the first group of parameters for the UE, and notifies the user equipment UE, after the UE receives the parameter selected by the base station, according to the The parameters determine the PUCCH-based sequence and physical resources to achieve the effect of interference randomization.

When the user equipment is in position (2) and its PUCCH is received by both the eNB and the RRH1, the eNB selects the second group parameter for the UE, and notifies the user equipment UE, after the UE receives the parameter selected by the base station. According to the parameter, the PUCCH-based sequence and the physical resource are determined to achieve the effect of ensuring the orthogonality of the CoMP user.

When the user moves to the Pico service range and is in the location (3), and the Pico is the serving cell of the user, the base station can configure two sets of parameters for the user, wherein the first group of parameters is ⁷ ^^^; the second ϋ^: : .

When the PUCCH of the user equipment is only received by the RRH1, the base station selects the first group parameter for the UE, and notifies the user equipment UE. After receiving the parameter selected by the base station, the UE determines the PUCCH base sequence and the physical according to the parameter. Resources, to achieve the effect of interference randomization.

When the PUCCH of the user equipment is received by the eNB and received by the RRH1, the base station selects the second group parameter for the UE, and notifies the user equipment UE. After receiving the parameter selected by the base station, the UE determines the PUCCH according to the parameter. The base sequence and physical resources achieve the effect of ensuring the orthogonality of CoMP users.

Example 3:

Figure 14 is a schematic diagram of a scenario of Embodiment 17 of the present invention. The configuration of the parameters will be described below in conjunction with the scenario shown in Fig. 14, and the selection of the parameters is similar to the above embodiment.

As shown, the lower version of conventional user (Legacy UE), a total of only one set of cells (cell-specifc) 14 parameters ^(V m and ^V PUCCH).

For user equipment located in the RRH or Macro Center, only one set of user-specific (UE-specific) parameters can be configured. For example, in the user equipment of the RRH2 center, the user-specific parameters configured are and ^ι^οί ).

For users on the edge of RRH or Macro coverage, you can configure multiple sets of parameters. For example, two sets of parameters are configured, one of which may be a cell-specifc parameter and one of which is a user-specific (UE-specific) parameter. For example, RRH1 edge users can be configured with ^ and ⁷ , and W _PUCCH .

The base station dynamically selects an optimal parameter configuration according to the actual scheduling situation. For example, when the PUCCH is only received by the RRH1, the ^V ^c _C /7 can be selected, and the PUCCH is simultaneously connected by the RRH1 and the Macro eNB. When you close, you can choose ⁷ ^ and ⁷ .

For different user equipment, the parameters can be partially the same. For example, when RRH1 and RRH2 interact with each other, the ^^^ configured for the user equipment of the RRH2 service can be configured with the user equipment of the RRH1 service.

^N w is equal, but ^ is different from ^. With this configuration, the effect of interference randomization on the same time-frequency resource can be achieved.

Example 4:

Figure 15 is a schematic diagram of a scenario of Embodiment 18 of the present invention.

As shown in FIG. 15, when the user equipment that is simultaneously scheduled in the entire cell is the central user equipment of the RRH2, the central user equipment of the RRH1, and the edge user equipment of the RRH1, two sets of parameters are configured for the edge user equipment, such as configuration one. A set of parameters common to the group of cells, and then a set of user-specific parameters. At this time, the base station selects the user-specific parameters ^^ and ^", and uses the same CAZAC sequence as the central user equipment of the RRH1, thereby achieving a completely orthogonal effect, and adopting a different CAZAC sequence with the RRH2 central user equipment to achieve interference randomization. Effect.

Since the PRB resources occupied by the three user equipment PUCCHs are in the same area, the PUCCH resource utilization rate can be improved.

Example 5:

Figure 16 is a schematic diagram of a scenario of Embodiment 19 of the present invention. If there are many lower-level user equipments (legacy UEs) in the entire cell, or more user equipments configured with the parameters common to the cell and A^ _CCH , the load is evenly distributed, and the user equipment can be dynamically indicated to have less relative load. The PUCCH is sent on the resource.

For example, the edge user equipment of the RRH1 configures two sets of parameters for the edge user equipment, such as configuring parameters common to a group of cells, and then configuring a set of user-specific parameters. At this time, if the PUCCH load on the corresponding physical resource is small, the base station selects (丄, 禾口丄, and the UE) for the UE.

_AT (i)_RRm

On the other hand, if there is more PUCCH load on the corresponding physical resource, the base station selects (^/^ and ^!^!!) for the user equipment. Example 6:

Figure 17 is a schematic diagram of a scenario of Embodiment 20 of the present invention.

As shown in FIG. 17, if there are a plurality of user equipments in the entire cell, the PUCCH thereof is received by a plurality of points. As shown in FIG. 17, the PUCCH of the RRH1 edge user equipment is simultaneously received by the Macro eNB and the RRH1, and the PUCCH of the RH2 edge user equipment is simultaneously received by the Macro eNB and the RRH2. Then, if the two user equipments are scheduled on the same PRB resource, , must use the same CAZAC sequence, for example, the base station selects parameters for both user devices

).

Example 7:

For PUCCH of user equipment ACK/NACK feedback, such as formatl/la/lb, the base station can configure multiple sets of parameters for the user equipment. Each set of parameters includes at least a physical resource indication index "^^^ and a virtual cell identifier.

For the PUCCH fed back by the user equipment CSI, such as format 2/2a/2b, the base station may configure multiple sets of parameters for the user equipment. Each set of parameters includes at least a physical resource indication index "^ and a virtual cell identifier ^ ³ .

The parameter configuration of different formats can be independent or bound together.

When configured independently, the number of sets of parameters may be different or the same. For example, for format la / lb Group 3 configuration parameters, and the configuration parameters for the group 2 format 2a / 2b, and a virtual cell identifier ^nLd format and format la / lb virtual cell identifier ^NlD 2a / 2b is not - correspondence.

When the configuration is bound, the PUCCH for CSI feedback is the same as the virtual cell identifier of the PUCCH format configured to carry only ACK/NACK feedback, but the physical resource indication index "^c^ needs to be separately configured, and ⁿ PUCCH and ⁿ PUCCH ~ - ~ "corresponding to ₀

When the ACK/NACK of the dynamically scheduled PDSCH is sent simultaneously with the CSI feedback, the base station can dynamically indicate which set of resources the user uses to transmit the PUCCH by scheduling the DCI of the PDSCH. For example, at the nth time, the DCI dynamically carried by the PDCCH indicates that the PUCCH parameter used by the PUCCH format la at time n+4 is

^N ' ^D and - , then the parameters used in PUCCH format 2 at n + m are ^Ν and ― , where m is the smallest integer greater than 4. In this case, the DCI indicates the parameters of the PUCCH format la, and the parameters used by the PUCCH format 2 are bound to the PUCCH format 1 a parameter by default, that is, a DCI indicates the parameters of the PUCCH format la and .

For the parameters used by the PUCCH format that only carries CSI feedback, such as format 2, you can use The most recently indicated ^D corresponds to "^CCH" and ⁿ _PUCCH .

The parameters of the PUCCH-based sequence and the physical resource enable the user equipment to determine the PUCCH sequence and physical resources according to the selected parameters, thereby avoiding interference or achieving randomization of interference, and solving the problems in the current technology. It should be noted that the descriptions are exemplary only for the embodiments of the present invention, and those skilled in the art should be aware that other alternatives may be included, and no further examples are given herein.

The above apparatus and method of the present invention may be implemented by hardware, or may be implemented by hardware in combination with software. The present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps. The present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, and the like. The present invention has been described in connection with the specific embodiments thereof, and it should be understood by those skilled in the art that these descriptions are not intended to limit the scope of the invention. A person skilled in the art can make various modifications and changes to the invention in accordance with the spirit and the principles of the invention, which are also within the scope of the invention.

Claims

Claim

A method for determining a base sequence and a physical resource of an uplink control channel, for uplink control channel transmission of a user equipment in a coordinated multi-point transmission (CoMP) system, the method comprising:

And notifying the user equipment of the selected parameter, so that the user equipment determines a base sequence and a physical resource of the uplink control channel transmission according to the parameter.

2. The method according to claim 1, wherein the user-specific parameters include one or more user-specific physical resource indication indexes corresponding to user-specific virtual cell identifiers, or one or more user-specific parameters. a virtual cell identifier corresponding to the parameter for determining a user-specific physical resource indication index, or including one or more sets of parameter information, and each set of parameter information includes a user-specific virtual cell identifier and corresponding to the user-specific virtual cell identifier. User-specific physical resource indication index, or includes one or more sets of parameter information, and each set of parameter information includes a user-specific virtual cell identifier and a physical resource specific to the user-specific virtual cell identifier for determining user-specific Indicates the parameters of the index.

The method according to claim 1 or 2, wherein parameters for determining a base sequence and a physical resource for uplink control channel transmission are selected from the relevant parameters according to actual scheduling conditions of the user equipment and different purposes.

The method according to claim 1 or 2, wherein the notifying the user equipment of the selected parameter comprises: signaling the user equipment by using a physical layer or a MAC layer.

The method according to claim 4, wherein the user equipment is notified by one or more bits in downlink control signaling transmitted by the downlink data channel carried by the downlink control channel.

6. The method according to claim 5, wherein the one or more bits are bits reserved in the downlink control signaling or newly added bits.

The method according to claim 1 or 2, wherein the method further comprises:

Configuring the related parameter or the user-specific parameter;

Notifying the user equipment of the configured related parameter or the user-specific parameter.

8. The method according to claim 7, wherein the related parameter or the user-specific parameter of the configuration is notified to the user equipment by high layer signaling.

9. The method according to claim 7, wherein the configuration related parameter or the user-specific parameter comprises: an uplink control channel transmission configuration used for feeding back ACK/NACK and/or for feeding back channel state information. The relevant parameter or the user-specific parameter.

10. The method according to claim 9, wherein the user-specific virtual configured is configured when the user-specific parameters are configured for uplink control channel transmission for feeding back ACK/NACK and for feeding back channel state information. The cell ID is the same.

The method according to claim 7, wherein the user equipment located at the edge of the micro cell or the macro cell is configured with more than one user-specific physical resource indication index or a set of parameter information.

12. The method according to claim 2, wherein the user-specific parameters include one or more physical resource indication indexes corresponding to user-specific virtual cell identifiers, or one or more virtual ones dedicated to users. When the cell identifier corresponds to the parameter for determining the physical resource indication index, the user-specific virtual cell identifier is bound to the user-specific virtual cell identifier of the pilot symbol.

13. A method for determining a base sequence and a physical resource of an uplink control channel, for uplink control channel transmission of a user equipment in a coordinated multi-point transmission (CoMP) system, the method comprising:

And the user equipment receives, by the serving cell, a parameter selected from the relevant parameters for determining a base sequence and a physical resource of the uplink control channel; the related parameter includes a parameter shared by the cell and a parameter specific to the user; and the received parameter includes A parameter common to a group of cells or a set of user-specific parameters;

14. The method according to claim 13, wherein the user-specific parameters include one or more user-specific physical resource indication indexes corresponding to user-specific virtual cell identifiers, or one or more user-specific parameters. a virtual cell identifier corresponding to the parameter for determining a user-specific physical resource indication index, or including one or more sets of parameter information, and each set of parameter information includes a user-specific virtual cell identifier and corresponding to the user-specific virtual cell identifier. User-specific physical resource indication index, or includes one or more sets of parameter information, and each set of parameter information includes a user-specific virtual cell identifier and a physical resource specific to the user-specific virtual cell identifier for determining user-specific a parameter indicating an index;

The set of user-specific parameters includes: a user-specific virtual cell identifier and a user-specific physical resource indication index corresponding to the user-specific virtual cell identifier; or a user-specific virtual cell identifier and the user-specific virtual A parameter corresponding to the cell identifier for determining a user-specific physical resource indication index.

15. The method according to claim 14, wherein, when the received parameter comprises a user-specific virtual cell identifier and a parameter corresponding to the user-specific virtual cell identifier for determining a user-specific physical resource indication index Determining, according to the received parameter, a base sequence and a physical resource of the uplink control channel, including:

Determining, according to the parameter for determining a physical resource indication index, the physical resource indication index; determining a base sequence and a physical resource of the uplink control channel according to the determined physical resource indication index and the user-specific virtual cell identifier.

The method according to claim 13 or 14, wherein the method further comprises:

The user equipment receives a related parameter configured by the serving cell to the user equipment or a parameter specific to the user.

A method for transmitting uplink control information, where the method includes:

Determining a base sequence and a physical resource of an uplink control channel by using the method according to any one of claims 13 to 16;

And transmitting uplink control information by using the determined base sequence and physical resources.

18. A base station, the base station comprising:

And a selection unit, where the selection unit is configured to select, from the relevant parameters, a parameter for determining a base sequence and a physical resource of the uplink control channel transmission; wherein the correlation parameter includes a parameter common to the cell and a parameter specific to the user;

19. The base station according to claim 18, wherein the user-specific parameters include one or more user-specific physical resource indication indexes corresponding to user-specific virtual cell identifiers, or one or more user-specific parameters. a virtual cell identifier corresponding to the parameter for determining a user-specific physical resource indication index, or including one or more sets of parameter information, and each set of parameter information includes a user-specific virtual cell identifier and corresponding to the user-specific virtual cell identifier. User-specific physical resource indication index, or includes one or more sets of parameter information, and each set of parameter information includes a user-specific virtual cell identifier and a physical resource specific to the user-specific virtual cell identifier for determining user-specific Indicates the parameters of the index.

The base station according to claim 18 or 19, wherein the first notification unit notifies the user equipment by using a physical layer or a MAC layer.

The base station according to claim 20, wherein the first notification unit notifies the user equipment by one or more bits in downlink control signaling transmitted by a scheduling downlink data channel carried by a downlink control channel.

The base station according to claim 18, wherein the base station further comprises:

a configuration unit, the configuration unit configured to configure the related parameter or configure the user-specific parameter;

And a second notification unit, the second notification unit configured to notify the user equipment of the configured related parameter or the user-specific parameter.

The base station according to claim 22, wherein the second notification unit notifies the user equipment of the configured related parameter or the user-specific parameter by high layer signaling.

24. The base station according to claim 22, wherein the configuration unit is configured to: configure the relevant parameter or location for uplink control channel transmission used to feed back ACK/NACK and/or to feed back channel state information User-specific parameters.

The base station according to claim 24, wherein the configured user-specific virtual when the configuration unit is configured to use the user-specific parameters for uplink control channel transmission for feeding back ACK/NACK and feedback channel state information The cell ID is the same.

26. A user equipment, the user equipment comprising:

a first receiving unit, configured to receive a parameter of a base sequence and a physical resource of the determined uplink control channel selected by the associated serving cell and sent by the serving cell; the related parameter includes a parameter and a user shared by the cell a dedicated parameter; the received parameter includes a parameter common to a group of cells or includes a set of user-specific parameters;

And a processing unit, the processing unit configured to determine a base sequence and a physical resource of the uplink control channel according to the received parameter.

27. The user equipment according to claim 26, wherein the user-specific parameters include one or more user-specific physical resource indication indexes corresponding to user-specific virtual cell identifiers, or one or more user-specific parameters. The virtual cell identifier corresponds to a parameter for determining a user-specific physical resource indication index, or includes one or more sets of parameter information, and each group of parameter information includes a user-specific virtual cell identifier and the user-specific virtual cell identifier. Corresponding user-specific physical resource indication index, or including one or more sets of parameter information, and each set of parameter information includes a user-specific virtual cell identifier and a parameter for determining a user-specific physical resource indication index corresponding to the user-specific virtual cell identifier; the set of user-specific parameters includes: a user-specific virtual cell identifier and a physical resource indication corresponding to the user-specific virtual cell identifier An index; or a user-specific virtual cell identifier and a parameter for determining a physical resource indication index corresponding to the user-specific virtual cell identifier.

The user equipment according to claim 27, wherein, when the received parameter includes a user-specific virtual cell identifier and a parameter for determining a physical resource indication index corresponding to the user-specific virtual cell identifier, The processing unit includes:

a first determining unit, the first determining unit configured to determine the physical resource indication index according to the parameter used to determine a physical resource indication threshold 1;

And a second determining unit, configured to determine a base sequence and a physical resource of the uplink control channel according to the determined physical resource indication index and the user-specific virtual cell identifier.

The user equipment according to claim 26 or 27, wherein the user equipment further comprises: a second receiving unit, where the second receiving unit is configured to receive a location where the serving cell is configured for the user equipment The relevant parameters or the user-specific parameters are described.

30. A user equipment, where the user equipment includes:

The first receiving unit and processing unit of claim 26;

And a sending unit, where the sending unit is configured to send uplink control information by using the base sequence and the physical resource determined by the processing unit.

31. A computer readable program, wherein the program causes a computer to perform determining an uplink control channel according to any one of claims 1 to 12 in the base station when the program is executed in a base station The method of base sequence and physical resources.

32. A storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform a base for determining an uplink control channel according to any one of claims 1 to 12 in the base station Methods of sequence and physical resources.

33. A computer readable program, wherein the program causes a computer to perform determining the uplink in any one of claims 13 to 16 in the user equipment when the program is executed in a user equipment A method of controlling the base sequence and physical resources of a channel.

A storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform the determining of the uplink control in the user equipment according to any one of claims 13 to 16. A method of base sequence and physical resources of a channel.

A computer readable program, wherein the program causes a computer to execute a method of transmitting uplink control information according to claim 17 in the user equipment when the program is executed in a user equipment.

A storage medium storing a computer readable program, wherein the computer readable program causes a computer to execute a method of transmitting uplink control information according to claim 17 in the user equipment.