WO2013067857A1

WO2013067857A1 - Uplink control information transmission method and device

Info

Publication number: WO2013067857A1
Application number: PCT/CN2012/081669
Authority: WO
Inventors: 高雪娟; 林亚男; 沈祖康
Original assignee: 电信科学技术研究院
Priority date: 2011-11-07
Filing date: 2012-09-20
Publication date: 2013-05-16
Also published as: CN102437895A; CN102437895B

Abstract

Disclosed is an uplink control information transmission method, for transmitting the uplink control information when the indication information indicating the channel resource for multi-aerial port transmission is not received on a physical downlink control channel (PDCCH). The method comprises: a terminal receives downlink data; the terminal judges whether a PDCCH is received, the PDCCH carrying the resource indication information indicating the channel resource for the multi-aerial port transmission; if not received, then the terminal adopts the PUCCH format 1a or the PUCCH format 1b or the single-aerial port transmitted PUCCH format 1b with channel selection to transmit the uplink control information. Also disclosed is a device to realize the method.

Description

Method and device for transmitting uplink control information. The present application claims to be filed on November 07, 2011 in Chinese Patent Application No. 201110349131.7, entitled "A Method and Apparatus for Transmitting Uplink Control Information" Priority is hereby incorporated by reference in its entirety. Technical field

The present invention relates to the field of communications, and in particular, to a method and apparatus for transmitting uplink control information. Background technique

In the Long Term Evolution - Advanced (LTE-A) version (Release, Rel) -10, the resource overhead of Spatial Orthogonal Resource Transmit Diversity (SORTD) is considered too large. The Physical Uplink Control Channel (PUCCH) format lb (PUCCH format lb with channel selection) of the channel selection defines a multi-antenna port transmission scheme.

In Rel-11, from the perspective of guaranteeing uplink coverage, improving ACKnowledgment (ACK) or non-authentic response (NACK) transmission reliability and saving power, further study on PUCCH format lb with lower resource overhead is needed. With channel selection multi-antenna port transmission scheme (ie, transmit diversity scheme), such as enhanced SORTD (Enhanced SORTD, E-SORTD) and Resource Selection Transmit Diversity (RSTD). To ensure that the PUCCH resources of the data transmission and the pilot are located in the same physical resource block (PRB) on the same antenna port, you need to obtain the resource indication domain carried in the Physical Downlink Control Channel (PDCCH). A candidate PUCCH resource used for channel selection when transmitting multiple antenna ports.

1) PUCCH format lb with channel selection scheme introduction

In LTE-ARel-10, PUCCH format lb with channel selection can be used to transmit ACK or NACK feedback information of no more than 4 bits, and M bit feedback information needs to use M PUCCH format lb resources, where Μ=2, 3, 4 . The user equipment (UE) queries the corresponding ACK/NACK mapping table according to the ACK or NACK status to be fed back, selects one of the candidate PUCCH format lb resources, and performs quadrature phase shift keying (Quarature Phase -Shift Keying, QPSK) selects one of the four constellation points (ie, one QPSK modulation symbol), and transmits the selected constellation point on the selected PUCCH format lb resource, and the specific transmission structure is the same as PUCCH format lb.

In Rel-10, PUCCH format lb with channel selection does not support multi-antenna port transmission mode, mainly considering that when using SORTD, the UE needs to determine the resource order of M PUCCH format lb for each antenna port. The PUCCH format lb of the multiple antenna ports is orthogonal in the frequency domain and/or the time domain, for example, the time domain orthogonal sequence corresponding to the PUCCH format lb resource corresponding to different antenna ports and/or the frequency domain cyclic shift value different. When 2 antenna ports are transmitted, a total of 2M PUCCH resources are required. For 4-bit ACK or NACK transmission, 8 PUCCH resources are required, and the resource overhead is too large. Here, the antenna port refers to the antenna port of the PUCCH.

From the perspective of system coverage and transmission power. In Rel-11, it is necessary to further study the multi-antenna port transmission scheme of PUCCH format lb with channel selection with low resource overhead to improve transmission performance and expand the system.

2) Introduction to the E-SORTD program

The core idea of the ACK/NACK mapping table design for the transmission of 2 antenna ports is: For ACK/NACK feedback of M=2, 3, and 4 bits, 4 PUCCH format lb resources are required; For an M-bit ACK/ The NACK combined state, as shown in Table 1 and Table 2, transmits the same modulation symbol (ie, the QPSK modulation symbol corresponding to the ACK/NACK combined state) at the first antenna port and the second antenna port, the first antenna port The pilot and data are transmitted on the same PUCCH format lb resource of the four candidate channel resources, and the pilot and data on the second antenna port use resources other than the first antenna port among the four candidate channel resources. The different 2 PUCCH format lb resources are transmitted on the other, and the pilot and data use the adjacent PUCCH format lb resources in the mapping table.

According to the definition in 3GPP TS36.213: The PUCCH channel resource used for channel selection may be determined according to a minimum Control Channel Element (CCE) number of a PDCCH transmitted on a Primary Component Carrier (PCC), where A channel resource may be determined according to a minimum CCE number of the PDCCH, or two channel resources may be simultaneously determined according to a minimum CCE number of the PDCCH and a minimum CCE +1. For the PDCCH transmitted on the secondary component carrier (SCC), the PUCCH channel resource may be determined according to the resource indication field carried in the PDCCH; the manner of determining the PRB of the transmission according to the PUCCH channel resource is as shown in formula (1) . The minimum CCE number used for PDCCH transmission in different carriers and/or subframes is relatively independent, and the PUCCH channel resources determined by the resource indication field carried in the PDCCH are relatively independent from the PUCCH channel resources determined according to the minimum CCE number of the PDCCH. Therefore, it cannot be guaranteed that different PUCCH format lb channel resources obtained in the above manner are mapped in the same PRB. Considering the above solution, the data and pilots on the second antenna port are respectively transmitted on different PUCCH format lb resources, so there may be data and pilots experiencing different channels, and the data cannot be correctly used using the pilot data. Channel estimation, which in turn reduces demodulation

( 1 ) If _u <c- m

Its towel

3 normal cyclic prefix

2 extended cyclic prefix In the above formula, ^ _H is the PUCCH channel resource, Δ N-

The RB is the slot number of the high-level configuration.

Table 1 E-SORTD, 3-bit ACK/NACK mapping table

Wherein, 1, -1, j, -j respectively represent 4 constellation points of QPSK, j represents an imaginary number, r represents a transmission channel position of a pilot symbol map, Ch represents a channel resource, and DTX (Discontinuous Transmission) is discontinuous in Chinese Transmit, each ACK/NACK state corresponds to a selection result, including channel resources and QPSK modulation symbols that need to be transmitted on the channel resource, such as a selection result corresponding to the first ACK/NACK state "NACK/DTX NACK DTX" in the table. For: antenna port 0 corresponds to channel resource 0 and "l, l, r", where "1, 1" respectively represents the QPSK modulation symbol transmitted in each slot in a subframe on the antenna port, that is, the antenna QPSK modulation symbol "1" corresponding to ACK/NACK on the port and the same QPSK modulation symbol transmitted in each slot in one subframe, the QPSK modulation symbol and the pilot symbol are transmitted on channel resource 0; antenna port 1 Corresponding channel number 3 and "1,1", and channel number 2 and "r", that is, the QPSK modulation symbol corresponding to the ACK/NACK on the antenna port is "Γ and transmitted in each slot in one subframe QPSK modulation symbols are the same, the QPSK modulation symbol Transmitted on channel resource 3, the pilot symbols on the antenna port are different from the transmission channel of the QPSK modulation symbol, and the pilot is transmitted on channel resource 2.

NACK NACK/DTX NACK/DTX NACK/DTX l,l,rr 1,1

ACK NACK/DTX NACK/DTX NACK/DTX j,j,r r j,j

NACK/DTX ACK NACK/DTX NACK/DTX ■j,- j,r r ■j,-j

ACK ACK NACK/DTX NACK/DTX -l,-l,r r -1,-1

NACK/DTX ACK ACK NACK/DTX l,l,r 1,1 r

ACK ACK ACK NACK/DTX j,j,r j,j r

NACK/DTX ACK ACK ACK ■j,- j,r ■j,-j r

ACK ACK ACK ACK -l, -l, r -1, -1 r

NACK/DTX NACK/DTX NACK/DTX ACK l,l,r 1,1 r

NACK/DTX NACK/DTX ACK NACK/DTX j,j,r j,j r

NACK/DTX ACK NACK/DTX ACK ■j,- j,r ■j,-j r

NACK/DTX NACK/DTX ACK ACK -l, -l, r -1, -1 r

ACK NACK/DTX ACK NACK/DTX l,l,r r 1,1

ACK NACK/DTX NACK/DTX ACK j,j,r r j,j

ACK NACK/DTX ACK ACK ■j,- j,r r ■j,-j

ACK ACK NACK/DTX ACK -l,-l,r r -1,-1

DTX DTX NACK/DTX NACK/DTX No Transmission Table 2 E-SORTD, 4-bit ACK/NACK mapping table

3) Introduction to RSTD

The core idea of the ACK and NACK mapping table design for the transmission of 2 antenna ports is: for M=2, 3, 4 bits of ACK or NACK feedback, it needs to occupy 4 PUCCH format lb resources; for an M-bit ACK and The NACK combined state, as shown in Table 3 and Table 4, the modulation symbols transmitted at the first antenna port and the second antenna port (ie, the QPSK modulation symbols corresponding to the ACK and the NACK) may be different, and the second antenna port The modulation symbols corresponding to each time slot may be different, and the pilot and data on each antenna port may be transmitted on different PUCCH format lb resources of the four candidate channel resources, and the pilot and data usage on the same antenna port are used. Map the adjacent PUCCH format lb resources in the table.

In this solution, data and pilots on each antenna port may be transmitted on different PUCCH format lb resources, PUCCH resource acquisition mode and manner of transmitting PRB through PUCCH resources are the same as E-SORTD scheme, and therefore, data may exist as well. And the frequency domain locations of the pilots are respectively in different PRB problems.

Antenna Port 0 Antenna Port 1

HARQ-ACK(O) HARQ-ACK(l) HARQ-ACK(2)

Ch#0 Ch#l Ch#2 Ch#3 Ch#0 Ch#l Ch#2 Ch#3

NACK/DTX NACK DTX -l,-l,r -l,-l,r

NACK NACK/DTX DTX -l,-l,r -l,-l,r

ACK NACK/DTX NACK/DTX j,j,r j,

NACK/DTX ACK NACK/DTX ■j,- j,r l,j,r

ACK ACK NACK/DTX l,l,r ■j,- j,r

ACK ACK ACK r 1,1 1,1 r ACK NACK/DTX ACK r -1,-1 -1,-1 r

NACK/DTX NACK/DTX NACK -l,-l,r -l,-l,r

NACK/DTX NACK/DTX ACK l,l,r l,l,r

NACK/DTX ACK ACK r 1,1 1,1 r

DTX DTX DTX No Transmission

Table 3 RSTD based on pilot and slot coding, 3-bit ACK/NACK mapping table

Table 4 RSTD based on pilot and slot coding, 4-bit ACK/NACK mapping table

4) PUCCH format lb with channel selection The resource configuration method for multi-antenna port transmission is introduced to solve the problem that the data and pilot are transmitted in different PRBs in the PUCCH format lb with channel selection multi-antenna port transmission scheme, and it is proposed to carry through the PDCCH. K = " ^{lQg2 A} ^ resource indication field indicates the method of candidate PUCCH resources used for channel selection in multi-antenna port transmission. That is, high-level signaling pre-configures N groups of PUCCH format lb resources, each group contains Μ (better, Μ = 4) PUCCH format lb channel resources, wherein the M PUCHCH format lb channel resources ensure that at least the P pair resources satisfy the two resources in the resource pair in the same PRB, and the JL P pairs resources are different from each other, where P is Table 1 and Table 2, or the number of resource pairs formed by two different channel resources for transmitting data symbols and pilot symbols corresponding to the same ACK and NACK combined state, respectively, in Tables 3 and 4. For Tables 1 and 2, or Tables 3 and 4, there are 2 pairs for 3-bit and 4-bit transmissions respectively (a pair of resources on ChO and Chi, a pair of resources on Ch2 and Ch3) Source) Different PUCCH resources need to be configured in the same PRB.

The resource in the PDCCH indicates the downlink control information that the domain can use (Downlink Control)

Information, DCI) Reuse of existing bits in the format, for example, for Frequency Division Duplex (FDD), the transmit power control in the DCI format used for the PDCCH corresponding to the SCC (Transmit) Power Control, TPC) domain reuse; For Time Division Duplex (TDD), the DCI format used for the PDCCH corresponding to the PCC's Downlink Assignment Index (DAI) value greater than 1 and the PDCCH corresponding to the SCC Reuse of the TPC domain in .

In the resource configuration method, when the UE does not receive the PDCCH, the UE cannot obtain the channel resources required for the PUCCH format lb with channel selection multi-antenna port transmission, and the uplink control information cannot be transmitted. Summary of the invention

The embodiment of the invention provides a method and a device for transmitting uplink control information, which are used to implement uplink control information transmission when the indication information for indicating the channel resource used by the multi-antenna port transmission is not received on the PDCCH.

A method for transmitting uplink control information, which is applied to a terminal side, includes the following steps:

The terminal receives downlink data;

Determining, by the terminal, whether a physical downlink control channel PDCCH including resource indication information indicating a channel resource used by the multi-antenna port transmission is received;

If it is judged that it is not received, the terminal uses the physical uplink control channel format la PUCCH format la or

PUCCH format lb or channel selection based physical uplink control channel format for single antenna port transmission lb PUCCH format lb with channel selection transmits uplink control information.

A terminal for transmitting uplink control information includes the following steps:

a receiving module, configured to receive downlink data;

a processing module, configured to determine whether the receiving module receives a PDCCH that includes resource indication information indicating a channel resource used by the multi-antenna port transmission, and when determining that the receiving module does not receive the PDCCH, using a PUCCH format la Or the PUCCH format lb or the PUCCH format lb with channel selection transmitted by the single antenna port transmits the uplink control information.

In the embodiment of the present invention, for a terminal that transmits uplink control information on a multi-antenna port (such as a 2-antenna port) by using a PUCCH format lb with channel selection, when an indication indicating that a channel resource used for transmitting the multi-antenna port is not received is received When the PDCCH of the information is used, the terminal transmits the uplink control information by using PUCCH format la or PUCCH format lb or PUCCH format lb with channel selection transmitted by the single antenna port. DRAWINGS

1 is a flowchart of a method for transmitting uplink control information by a terminal side according to an embodiment of the present invention;

2 is a flowchart of a method for scheduling and detecting uplink control information sent by a terminal when a base station sends scheduling information of a channel resource required for transmission of a PUCCH format lb with channel selection multi-antenna port according to an embodiment of the present invention; In the embodiment, the base station does not send the PUCCH format lb with channel selection multi-antenna port FIG. 4 is a flowchart of a method for scheduling and detecting uplink control information sent by a terminal when transmitting scheduling information of a required channel resource; FIG. 4 is a schematic diagram of transmitting uplink control when the PCC is in a multi-codeword transmission mode in an FDD system according to an embodiment of the present invention; Method flow chart of information;

FIG. 5 is a schematic diagram of resource scheduling and feedback in an FDD system corresponding to FIG. 4 according to an embodiment of the present invention; FIG. 6 is a schematic diagram of transmitting uplink control information in a TDD system when a PCC is in a single codeword transmission mode according to an embodiment of the present invention; Method flow chart;

FIG. 7 is a schematic diagram of resource scheduling and feedback in a TDD system corresponding to FIG. 6 according to an embodiment of the present invention; FIG. 8 is a schematic diagram of the first type of uplink transmission when the PCC is in a multi-codeword transmission mode according to an embodiment of the present invention; Method flow chart for controlling information;

FIG. 9 is a schematic diagram of resource scheduling and feedback in a TDD system corresponding to FIG. 8 according to an embodiment of the present invention; FIG. 10 is a second transmission uplink used in a TDD system when a PCC is in a multi-codeword transmission mode according to an embodiment of the present invention; Method flow chart for controlling information;

FIG. 11 is a schematic diagram of resource scheduling and feedback in a TDD system corresponding to FIG. 10 according to an embodiment of the present invention; FIG. 12 is a third transmission uplink used in a TDD system when a PCC is in a multi-codeword transmission mode according to an embodiment of the present invention; Method flow chart for controlling information;

FIG. 13 is a schematic diagram of resource scheduling and feedback in a TDD system corresponding to FIG. 12 according to an embodiment of the present invention; FIG. 14 is a structural diagram of a terminal according to an embodiment of the present invention;

FIG. 15 is a structural diagram of a base station according to an embodiment of the present invention. Detailed ways

In the embodiment of the present invention, for a terminal that transmits uplink control information on a multi-antenna port (such as a 2-antenna port) by using a PUCCH format lb with channel selection, when an indication indicating that a channel resource used for transmitting the multi-antenna port is not received is received When the PDCCH of the information is used, the terminal transmits the uplink control information by using PUCCH format la or PUCCH format lb or PUCCH format lb with channel selection transmitted by the single antenna port.

Referring to FIG. 1, the main method for transmitting uplink control information on the terminal side in this embodiment is as follows:

Step 101: The terminal receives downlink data.

Step 102: The terminal determines whether a physical downlink control channel PDCCH including resource indication information indicating a channel resource used for transmission by the multi-antenna port is received.

Step 103: If the judgment is not received, the terminal transmits the uplink control information by using PUCCH format la or PUCCH format lb or PUCCH format lb with channel selection transmitted by the single antenna port.

If the judgment is received, the terminal uses the PUCCH format lb with channel selection to perform channel selection on the plurality of antenna ports on the plurality of PUCCH channel resources indicated by the resource indication information in the PDCCH, and in each antenna The uplink control information is transmitted on the corresponding channel resource after the port channel is selected. For the TDD, the PDCCH including the resource indication information is a PDCCH corresponding to the PCC whose DAI value is greater than 1 and a PDCCH corresponding to the SCC. The resource indication information is a reuse of the TPC field in the DCI format used by the PDCCH. For FDD, the PDCCH including the resource indication information is a PDCCH corresponding to the SCC; wherein the resource indication information is a TPC domain in the DCI format used by the PDCCH.

Specifically, the terminal determines that the PDCCH that includes the resource indication information indicating the channel resource used for the transmission of the multi-antenna port is not received, and the terminal uses the PUCCH format la or the PUCCH format lb or the PUCCH format transmitted by the single antenna port. Lb with channel selection to transmit uplink control information:

For FDD, the terminal receives only one Physical Downlink Shared Channel (PDSCH) scheduled by the PDCCH on the PCC, or one PDCCH indicating the release of the Semi-Persistent Scheduling (SPS) resource. For TDD, the terminal only receives one PDSCH scheduled by the PDCCH with a DAI value of 1 on the PCC, or one PDCCH indicating the release of the downlink SPS resources with a DAI value of 1. The DAI value represents the cumulative value of the PDCCH transmitted in multiple subframes within one feedback window, that is, the PDCCH transmission in the first subframe scheduled in the feedback window, the DAI value is 1, and the second is scheduled. The PDCCH transmission in the subframe has a DAI value of 2, and so on, and the feedback window is a downlink subframe set corresponding to ACK/NACK feedback of the same uplink subframe, that is, when the terminal only receives on the PCC When the PDCCH with a DAI value of 1 indicates that the terminal has received only one scheduled subframe on the PCC, the PDCCH transmitted on the PCC with a DAI value greater than 1 includes the channel resource used to indicate the transmission of the multi-antenna port. The indication information, that is, the PDCCH in which the terminal does not receive the indication information indicating the channel resource used for the transmission of the multi-antenna port in this case, cannot obtain the channel resource used for the multi-antenna port transmission.

Or, for FDD and TDD, the terminal only receives one PDSCH with no corresponding PDCCH on the PCC.

(ie SPS PDSCH).

Or, for TDD, the terminal only receives one PDSCH scheduled by the PDCCH with the DAI value of 1 on the PCC, or one PDCCH indicating the release of the downlink SPS resource with the DAI value of 1, and one PDSCH with no corresponding PDCCH ( That is, SPS PDSCH), that is, the terminal receives only one PDSCH scheduled by the PDCCH with the DAI value of 1 and one PDSCH with no corresponding PDCCH (ie, SPS PDSCH) on the PCC; or the terminal only receives 1 on the PCC. A PDCCH indicating a downlink SPS resource release and a PDSCH having no corresponding PDCCH (ie, SPS PDSCH) with a DAI value of 1. The one downlink subframe includes only one PDSCH transmission (a PDSCH with a corresponding PDCCH (ie, a PDSCH scheduled by a PDCCH) or a PDSCH without a corresponding PDCCH), or one PDCCH transmission indicating a downlink SPS resource release. Therefore, the PDSCH received by the terminal and the number of PDCCHs indicating the release of the downlink SPS resource are the number of downlink subframes received by the terminal;

The specific implementation process of transmitting uplink control information by the PUCCH format lb with channel selection transmitted by the terminal using a single antenna port is as follows:

单Using single-carrier operation, reusing the PUCCH format lb with channel defined by Rel-8 or Rel-9 The selection scheme transmits the uplink control information corresponding to the PCC on the single antenna port; that is, only the feedback information of the PCC is transmitted. When the current feedback window on the PCC includes M subframes, one bit of feedback information is generated for each subframe, and the M-bit information is fed back. Performing spatial merging on ACK/NACK information of multiple codewords in a subframe including multiple codewords, where the feedback window is a downlink subframe set corresponding to ACK/NACK feedback of the same uplink subframe; Using the ACK/NACK mapping table defined by Rel-8/9, the ACK/NACK mapping table defined by Rel-10 can also be used, and which table can be configured by higher layer signaling or PDCCH signaling. The high layer signaling includes Radio Resource Control (RRC) signaling and Media Access Control (MAC) signaling.

Or, using the multi-carrier mode of operation, reusing the PUCCH format lb with channel selection scheme defined by Rel-10 to transmit uplink control information corresponding to multiple carriers on a single antenna port; that is, feeding back feedback corresponding to multiple carriers (carriers configured by the UE) Information, when M=l subframes are included in the feedback window, the number of feedback bits is determined according to the transmission mode of each carrier, and 1-bit feedback information is generated for each subframe on the carrier of the single-codeword transmission mode, and the multi-codeword transmission is performed. Each subframe on the mode carrier generates 2-bit feedback information, wherein a NACK is generated as a feedback information for a subframe or a codeword that does not receive data (a 2-bit NACK is generated for 1 subframe on a carrier of a multi-codeword transmission mode) , generating 1 bit NACK for 1 subframe on the carrier of the single codeword transmission mode, obtaining 2 (2 configuration carriers, each carrier is a single codeword transmission mode), 3 (2 configuration carriers, and 1 The carrier is a single codeword transmission mode, one carrier is a multi-codeword transmission mode), 4 (two configuration carriers, and each carrier is a multi-codeword transmission mode) Bitwise feedback information; for the case where M=2 subframes are included in the feedback window, spatially combining ACK/NACK information of multiple codewords in a subframe including multiple codewords, and subframes not receiving data Generating a NACK (1-bit NACK) as feedback information to obtain 4-bit feedback information; when the feedback window contains M greater than 2 subframes, when there are multiple codeword transmissions in one subframe, multiple codes in the same subframe The ACK/NACK information of the word is spatially combined, and the feedback information of the multiple subframes on one carrier is combined in time domain to obtain 4-bit feedback information. The feedback window is ACK/NACK feedback corresponding to the same uplink subframe. The set of downlink subframes.

Or, when the TDD terminal receives only one PDSCH scheduled by the PDCCH with the DAI value of 1 on the PCC, or one PDCCH indicating the release of the downlink SPS resource with a DAI value of 1, and one PDSCH with no corresponding PDCCH (ie, In the case of SPS PDSCH), the PUCCH format lb with channel selection single antenna port transmission scheme is used to transmit 2 subframes received on the PCC (ie, a PDSCH scheduled by a PDCCH with a DAI value of 1 or a DAI value of 1) The uplink control information corresponding to the subframe in which the PDCCH transmission in which the downlink SPS resource is released and the subframe in which the PDSCH transmission of the corresponding PDCCH is not included.

Wherein, when the terminal uses the PUCCH format lb with channel selection single antenna port transmission scheme transmission

When the uplink control information corresponding to the two subframes received by the PCC is determined, the number of feedback bits of the uplink control information needs to be determined, which may be determined according to a transmission mode according to the PCC, or determined according to the number of actually received codewords. The specific solution is as follows: Solution 1: Determine the number of feedback bits according to the transmission mode of the PCC: that is, when the PCC is in the single codeword transmission mode, one bit of feedback information is generated for each subframe, because there are data transmission of two subframes, so a total of 2 bits of information needs to be transmitted. When the PCC is in the multi-codeword transmission mode, 2-bit feedback information is generated for each subframe, and NACK is generated for the codeword position where the transmission does not exist. Since there are two subframes of data transmission, a total of 4-bit feedback information is generated, A mapping table corresponding to 4-bit ACK/NACK (M=4) is used.

Solution 2: Determine the number of feedback bits according to the number of code words actually received. The PDCCH indicating that the downlink SPS resource is released can be regarded as one TB (Transport Block) transmission. The SPS PDSCH includes only one TB, and one TB corresponds to one. One codeword): that is, for the SPS PDSCH subframe, 1-bit feedback information is generated; for the subframe corresponding to the PDCCH with the DAI value of 1, the PDSCH scheduled by the PDCCH with the DAI value of 1 in the other subframe contains only 1 When the codeword transmission or the PDCCH in another subframe is used to indicate that the downlink SPS resource is released, one-bit feedback information is generated for the subframe, and 2-bit feedback information is generated, and 2-bit ACK/NACK (M=2) is used. Corresponding mapping table; when the PDSCH scheduled by the PDCCH with the DAI value of 1 in another subframe contains 2 codeword transmissions, generating 2-bit feedback information for the subframe, and generating 3-bit feedback information, using 3 A mapping table corresponding to bit ACK/NACK (M=3).

When the uplink control information corresponding to the two subframes received on the PCC is used, the candidate channel resource required for channel selection is obtained according to the minimum CCE number of the PDCCH of the scheduled PCC transmitted on the PCC and the TPC domain indication information of the PDCCH that activates the SPS PDSCH. .

For the scheme 1: when the PCC transmission mode is a single codeword, obtain a dynamic PUCCH format lb channel resource according to the minimum CCE number of the PDCCH, corresponding to the ACK/NACK information of the subframe where the PDCCH is located, according to the PDCCH that activates the SPS PDSCH. The TPC domain indication information acquires one semi-static PUCCH format lb channel resource, and corresponds to the ACK/NACK information of the SPS PDSCH. When the PCC transmission mode is multiple codewords, two dynamic PUCCHs are obtained according to the minimum CCE number of the PDCCH and CCE+1. The format lb channel resource, corresponding to the ACK/NACK information of the two codewords in the subframe, respectively, acquires one semi-static PUCCH format lb channel resource according to the TPC domain indication information of the PDCCH that activates the SPS PDSCH, and according to the semi-static resource number +1 acquires another semi-static resource, and respectively corresponds to ACK/NACK information of two codewords in the subframe;

For the scheme 2: acquiring one semi-static PUCCH format lb channel resource according to the TPC domain indication information of the PDCCH that activates the SPS PDSCH, corresponding to the ACK/NACK information of the SPS PDSCH, and the PDSCH scheduled by the PDCCH with the DAI value of 1 The PDSCH transmits a plurality of codewords, and obtains two channel resources according to a minimum CCE number of the PDCCH for scheduling the PDSCH and CCE+1, respectively corresponding to ACK/NACK information of two codewords in the subframe, if the PDSCH only transmits a codeword, which acquires one channel resource according to a minimum CCE number of a PDCCH that schedules the PDSCH, and corresponds to an ACK/NACK information of a subframe, or a PDCCH indicating a release of an SPS resource with a DAI value of 1, according to a minimum of the PDCCH. CCE number gets 1 channel resource, right The ACK/N ACK information of the subframe should be.

The specific implementation process of transmitting uplink control information by the terminal using PUCCH format la or PUCCH format lb is as follows:

The terminal determines the number of transmission antenna ports according to the configuration of the PUCCH format la or the PUCCH format lb, that is, when the PUCCH format la or the PUCCH format lb is configured to transmit by the single antenna port, the terminal uses the PUCCH format la or the PUCCH format lb on the single antenna port. Transmitting uplink control information; when PUCCH format la or PUCCH format lb is configured to transmit by multiple antenna ports (ie, 2 antenna ports), the terminal uses PUCCH format la or PUCCH format lb to adopt a transmit diversity scheme on multiple antenna ports ( The SORTD scheme) transmits uplink control information.

Determining that no indication information indicating a channel resource used for transmission of the multi-antenna port is received is received

In the scenario of the PDCCH, the terminal may transmit the 1-bit ACK/NACK information corresponding to the data received on the PCC by using the PUCCH format la, where, if the PCC is in the multi-codeword transmission mode, the downlink subframe includes multiple codewords. The multi-codeword feedback information is spatially combined; wherein PUCCH format la is mainly applied to the FDD or TDD system and only receives 1 subframe on the PCC;

Alternatively, the terminal uses the PUCCH format lb to transmit 2-bit ACK/NACK information corresponding to the data received on the PCC, where the 2-bit ACK/NACK feedback information is received by the terminal when the terminal receives only one subframe on the PCC. The 1-bit ACK/NACK feedback information corresponding to each codeword in the sub-frame is configured, and the 1-bit NACK is generated as the feedback information for the unreceived codeword. When the terminal only receives 2 subframes on the PCC, the 2 The bit ACK/NACK feedback information is used by the 1-bit ACK/NACK feedback information of each subframe, where the ACK/NACK feedback information of the multi-codeword in the subframe including the multiple codewords is spatially combined; PUCCH format lb is mainly applicable to the case of FDD system and PCC is multi-codeword transmission mode, or TDD system and PCC is multi-codeword transmission mode and only receives 1 subframe on PCC, or TDD system and only in PCC The case where 2 subframes are received.

The PUCCH channel resource used by the PUCCH format la or PUCCH format lb transmission: for the FDD system, obtained according to a PDCCH that schedules a PDSCH received on the PCC or a minimum CCE number of a PDCCH that indicates release of the downlink SPS resource; Or the indicator information is obtained according to the indication information of the TPC domain in the PDCCH of the SPS PDSCH that is received on the PCC, where the indication information indicates one of a plurality of groups of resources pre-configured by the high layer signaling, where each resource group is at least Contains 1 PUCCH resource;

For the TDD system, obtained according to the minimum CCE number of the PDCCH indicating the release of the downlink SPS resource according to the PDCCH received on the PCC with the DAI value of 1 or the DAI value received on the PCC; or Obtained by the indication information of the TPC domain in the PDCCH of the SPS PDSCH received on the PCC, the indication information indicates one of a plurality of groups of resources pre-configured by the high layer signaling, and each of the resource groups includes at least one PUCCH resource. .

Wherein, when the PUCCH format la or PUCCH format lb釆 is transmitted by using multiple antenna ports, The PUCCH resource is two channel resources obtained according to the minimum CCE number and the minimum CCE number +1 of the received PDCCH, respectively, corresponding to two antenna ports; or, the TPC domain in the PDCCH that activates the SPS PDSCH The high-level signaling obtained by the indication information is a set of resources of the pre-configured multiple sets of resources, where each set of resources includes two PUCCH resources, which respectively correspond to two antenna ports.

Specifically, there are at least three cases at this time:

Case 1: The terminal receives only one subframe with PDCCH on the PCC: specifically, when the FDD terminal receives only one PDSCH scheduled by the PDCCH on the PCC, or one PDCCH indicating the release of the downlink SPS resource, or When the TDD terminal receives only one PDSCH scheduled by the PDCCH with the DAI value of 1 on the PCC, or one PDCCH indicating the release of the downlink SPS resource with the DAI value of 1, the terminal according to the minimum CCE number of the PDCCH / or the most, CCE + 1 number to obtain PUCCH resources.

After obtaining the PUCCH resource in the case, the way to transmit the uplink control information is as follows:

In the first mode, when the PCC is in the single codeword transmission mode, the PUCCH format la is used to transmit the 1-bit ACK/NACK information of the received one subframe data. When the PCC is in the multi-codeword transmission mode, the PUCCH format lb is used to transmit. The received 2-bit ACK/NACK information of 1 subframe data includes 1-bit feedback information of each codeword and generates NACK as feedback information for the unreceived codeword.

Manner 2: When only the PDSCH containing one codeword is received or only one PDCCH indicating the release of the downlink SPS resource is received, the PUCCH format la is used to transmit the 1-bit ACK/NACK information of the received one subframe data. When receiving the PDSCH including two codewords, the PUCCH format lb is used to transmit the received 2-bit ACK/NACK information of one subframe data, including 1-bit feedback information of each codeword.

Manner 3: When the PDSCH containing two codewords is received on the PCC, the multi-codeword ACK/NACK is spatially combined, and the PUCCH format la is used.

Case 2: The terminal receives only one PDCCH-free subframe on the PCC: Specifically, when the terminal receives only one PDSCH (ie, SPS PDSCH) without a corresponding PDCCH on the PCC, the terminal activates the SPS PDSCH. The TPC domain in the PDCCH obtains the PUCCH resource.

After the PUCCH resource is obtained in case 2, the uplink control information is transmitted by:

Manner 2: Since only the PDSCH containing one codeword is received (since the SPS PDSCH is a single codeword transmission), the PUCCH format la is always used to transmit the 1-bit ACK/NACK information of the received one codeword.

Case 3: The terminal receives only one subframe with PDCCH and one subframe without PDCCH (ie, receives two subframes) on the PCC: Specifically, when the TDD terminal receives only one DAI value on the PCC PDCCH of 1 When the scheduled PDSCH or one PDCCH indicating the release of the downlink SPS resource with the DAI value of 1 and the PDSCH (ie, the SPS PDSCH) without the corresponding PDCCH, the terminal and the base station pre-arrange the minimum CCE according to the PDCCH and/or The minimum CCE+1 number gets the resource.

After obtaining the PUCCH resource in case three, the way to transmit the uplink control information is as follows:

When the PCC is in the multi-codeword transmission mode, 1 bit ACK/NACK feedback information is generated for each subframe, and a total of

2-bit feedback information, wherein the terminal spatially combines the ACK/NACK feedback information of the multi-codewords in the PDSCH including the plurality of codewords, and transmits them by using PUCCH format lb.

In the above case, when the PUCCH format la or the PUCCH format lb is configured to transmit by using a single antenna port, only one PUCCH channel resource is needed, obtained according to the minimum CCE number of the PDCCH, or according to the PDCCH in the activated SPS PDSCH. The indication of the TPC domain is obtained; when the PUCCH format la or the PUCCH format lb is configured to transmit by using multiple antenna ports (2 antenna ports), 2 PUCCH channel resources are required, which are obtained according to the minimum CCE number of the PDCCH and the minimum CCE +1, Or obtaining, according to the indication of the TPC domain in the PDCCH that activates the SPS PDSCH (indicating a group of resources in a plurality of resource groups, each group comprising 2 resources), respectively corresponding to each antenna port.

As opposed to the terminal side, the base station needs to perform scheduling and detection of uplink control information sent by the terminal. Terminal not received

PUCCH format lb with channel selection When scheduling information of channel resources required for multi-antenna port transmission, there are two possible cases, and a station sends a scheduling of channel resources required for PUCCH format lb with channel selection multi-antenna port transmission. The information is not received by the terminal; the second is that the base station does not send the scheduling information of the channel resources required for the PUCCH format lb with channel selection multi-antenna port transmission, so the terminal does not receive it. For both cases, there are two implementations on the base station side, see the following embodiment.

Referring to FIG. 2, in the embodiment, when the base station sends the scheduling information of the channel resources required for the PUCCH format lb with channel selection multi-antenna port transmission, the method for scheduling and detecting the uplink control information sent by the terminal is as follows:

Step 201: The base station determines a PUCCH channel resource used by the terminal when transmitting the PUCCH format lb with channel selection multi-antenna port, and sends configuration information indicating the channel resource to the terminal by using PDCCH signaling.

Preferably, the base station indicates, by using the resource indication information in the PDCCH, the PUCCH resource used by the multi-antenna port transmission of the terminal device and the PUCCH resource used by the PUCCH format lb with channel selection for PUCCH format la or PUCCH format lb or single antenna port transmission. Differently, to avoid inconsistency between the terminal device and the base station in the transmission scheme when the terminal device loses downlink data.

Step 202: The base station detects uplink control information sent by the terminal on the determined PUCCH channel resource. Step 203: When the base station does not detect the uplink control information on the PUCCH channel resource, the base station determines that the terminal uses the PUCCH format lb with channel selection multi-antenna port transmission. The PDCCH of the PUCCH channel resource; the base station further detects the uplink control information sent by the terminal device on the corresponding channel resource according to the PUCCH format lb or the PUCCH format lb with channel selection scheme of the single antenna port transmission.

The PUCCH channel resource used by the PUCCH format la or PUCCH format lb transmission: for the FDD system, the minimum CCE number and/or the minimum CCE+ of the PDCCH according to the PDCCH received on the PCC or the downlink SPS resource release. Or obtained as: a set of pre-configured multi-group resources of the indicated high-layer signaling of the TPC domain in the PDCCH of the activated SPS PDSCH received on the PCC, each resource group containing at least one PUCCH resource For the TDD system, the minimum CCE number and/or the minimum CCE+1 of the PDCCH indicating the release of the downlink SPS resource according to the PDCCH received on the PCC with the DAI value of 1 or the DAI value received on the PCC is 1. Or: one of a group of pre-configured multi-group resources of the indicated high-layer signaling of the TPC domain in the PDCCH of the activated SPS PDSCH received on the PCC, each resource group containing at least one PUCCH resource.

The base station can reuse the PUCCH format lb with channel selection single antenna defined in Rel-8 or Rel-9 or Rel-10 when detecting the uplink control information sent by the terminal device according to the PUCCH format lb with channel selection scheme transmitted by the single antenna port. Port transfer scheme.

The policy for the base station to determine the resource for transmitting the uplink control information is the same as that of the terminal, and is not described here.

Referring to FIG. 3, in the embodiment, when the base station does not send the scheduling information of the channel resources required for the PUCCH format lb with channel selection multi-antenna port transmission, the method for scheduling and detecting the uplink control information sent by the terminal is as follows:

Step 301: The base station sends the following downlink data only on the PCC: The FDD base station sends only one PDSCH scheduled by the PDCCH on the PCC, or only one PDCCH indicating the release of the downlink SPS resource is sent on the PCC, or only A PDSCH (ie, SPS PDSCH) having no corresponding PDCCH is transmitted on the PCC. Alternatively, the TDD base station transmits only one PDSCH scheduled by the PDCCH with the DAI value of 1 or one PDCCH indicating the release of the downlink SPS resource with the DAI value of 1 on the PCC, and/or one uncorresponding transmission on the PCC. The PDSCH of the PDCCH (that is, the SPS PDSCH), that is, the TDD base station transmits only one PDSCH scheduled by the PDCCH with the DAI value of 1 on the PCC; or the TDD base station transmits only one indication that the DAI value is 1 on the PCC. The PDCCH of the downlink SPS resource release; or, the TDD base station transmits only one PDSCH (ie, SPS PDSCH) without a corresponding PDCCH on the PCC; or, the TDD base station transmits only one PDCCH scheduling with a DAI value of 1 on the PCC. PDSCH and one PDSCH with no corresponding PDCCH (ie, SPS PDSCH); or, the TDD base station transmits only one PDCCH indicating the downlink SPS resource release and one PDSCH without the corresponding PDCCH with the DAI value of 1 on the PCC. (ie SPS PDSCH).

Step 302: The base station detects the uplink control sent by the terminal on the corresponding channel resource according to the PUCCH format lb or the PUCCH format lb with channel selection scheme transmitted by the single antenna port. Information.

The PUCCH channel resource used in the PUCCH format la or PUCCH format lb transmission is: indicating that the downlink SPS resource is released according to the PDCCH received on the PCC with a DAI value of 1 or the DAI value received on the PCC is 1. Obtained by the minimum CCE number of the PDCCH and/or the minimum CCE+1; or: one of the pre-configured multi-group resources of the indicated high-layer signaling of the TPC domain in the PDCCH of the activated SPS PDSCH received on the PCC. Group, each resource group contains at least 1 PUCCH resource. Alternatively, reuse the Rel-8 or Rel-10 PUCCH format lb with channel selection single antenna port transmission scheme.

It should be noted that the PUCCH format lb with channel selection in the present invention is mainly used for transmitting ACK/NACK feedback information, and is not excluded for other uplink control information, such as SR, Channel State Information (CSI), etc. The periodic CSI includes a Channel Quality Indicator (CQI) information, a Pre-coding Matrix Indicator (PMI) information, a Rank Indication (RI) information, and a Precoding Type indication (Precoder Type). Indication, PTI) information.

It should be noted that the above method is equally applicable to FDD and TDD systems.

It should be noted that the above antenna port refers to an antenna port defined to the PUCCH.

It should be noted that the method can be applied to E-SORTD, modified SORTD (Modified SORTD, M-SORTD), RSTD and other transmit diversity schemes; the possibility of being applied to other schemes is not excluded.

The terminal has the above multiple schemes when transmitting the uplink control information. The implementation process is described in detail below through several exemplary embodiments.

Referring to FIG. 4, when the embodiment is applied to the FDD system and the PCC is in the multi-codeword transmission mode, the method for transmitting the uplink control information is as follows:

Assume that the terminal uses PUCCH format lb with channel selection to transmit ACK/NACK information, and 2 transmit with 2 antenna ports.

See Figure 5 for a schematic diagram of resource scheduling and feedback under the FDD system.

Step 401: The base station configures one channel resource group for the 2-antenna port transmission to the terminal by scheduling the TPC domain in the PDCCH of the SCC. For example, the group contains 4 PUCCH channel resources j- ^rl PUCCH , 0 n ^rl P ^m UCCH , 1 n "P ^m UCCH , 2 n ^rl P ^m UCCH , 3 j

Step 402: The terminal receives only one PDSCH scheduled by the PDCCH at the PCC, and the PDSCH includes only one TB. The terminal does not receive the PDCCH containing the channel resource indication information used by the multi-antenna port transmission.

Step 403: The terminal determines to transmit the ACK/NACK feedback information of the PCC by using the PUCCH format la/lb. Specifically, when PUCCH format la/lb is configured as a single antenna port transmission, one PUCCH resource H′ ^{4 is} determined according to a minimum CCE number of a PDCCH scheduling the PDSCH; when PUCCH format la/lb is configured as a multi-antenna port transmission, Determining 2 PUCCHs according to a minimum CCE number of the PDCCH scheduling the PDSCH and CCE+1 Resources "PUCCH, 4 and "PUCCH, 5

Step 404: The terminal transmits the uplink control information by using PUCCH format la or PUCCH format lb. Specifically, the terminal uses the PUCCH format la to transmit the 1-bit ACK/NACK information [ACK] corresponding to the TB on the determined resource, or the terminal uses the PUCCH format lb to transmit the 1-bit ACK corresponding to the TB on the determined resource. /NACK information and a combination [ACK, NACK] that does not generate 1-bit NACK information for the received TB.

Step 405: The base station allocates four PUCCH channel resources to the terminal by scheduling the PDCCH of the SCC. nm _n m _n m _n m

H ' ² "puccii , , ACK/NACK information is not detected according to the ACK/NACK mapping table. At this time, the base station determines that the terminal drops the packet in the SCC and retransmits all the data.

Step 406: The base station detects ACK/NACK by using PUCCH format la/lb. Specifically, when the PUCCH format la/lb is configured as a single antenna port transmission, the PUCCH is determined according to the minimum CCE of the PDCCH of the scheduled PCC.

„(ι)

On the resource "cc^ ⁴ , when PUCCH format la/lb is configured for multi-antenna port transmission, _{PU is} used on the PUCCH resources "ccz^ and ccz^ determined according to the minimum CCE and CCE+1 of the PDCCH of the scheduled PCC" The CCH format la/lb detects ACK/NACK, and obtains 1-bit ACK/NACK information [ACK] corresponding to 1TB in the PDSCH on the PCC or 2-bit ACK/NACK information [ACK, NACK] corresponding to 2 TB respectively.

It should be noted that replacing the PDCCH including only 1 TB transmitted on the PCC with the PDCCH indicating the release of the downlink SPS resource is also applicable; replacing the PDSCH including the 1 TB transmitted on the PCC with the PDSCH without the corresponding PDCCH (ie, the SPS) PDSCH) is also applicable. The difference is that the acquisition of the PUCCH format la/lb resource is a group of resources determined according to the TPC domain of the PDCCH that activates the SPS PDSCH, which is 1 resource for single port transmission and 2 for multi port transmission. Resources.

Referring to Figure 6, this embodiment is applied to the TDD system. When the PCC is in the single codeword transmission mode, the method for transmitting the uplink control information is as follows:

See Figure 7 for a schematic diagram of resource scheduling and feedback under the TDD system.

Step 601: The base station configures one channel resource group for the 2 antenna port transmission to the terminal by scheduling the PDCCH of the PCC whose DAI value is greater than 1 and the TPC domain of the PDCCH scheduling the SCC. For example, this group contains 4

„(ι) „(ι) „(ι) „(ι)

PUCCH channel resource [ ^^^. ^Ff - ³ ], the TPC fields in multiple PDCCHs indicate the same resource group.

Step 602: The terminal receives only one PDSCH scheduled by the PDCCH with the DAI value of 1 at the PCC. The terminal does not receive the PDCCH containing the channel resource indication information used by the multi-antenna port transmission.

Step 603: The terminal determines to transmit the ACK/NACK feedback information of the PCC by using the PUCCH format la. Specifically, when PUCCH format la is configured as a single antenna port transmission, one PUCCH resource H ' ^{4 is} determined according to a minimum CCE number of a PDCCH scheduling the PDSCH; when PUCCH format la/lb is configured as a multi-antenna port transmission At the time of transmission, two PUCCH resources are determined according to the minimum CCE number of the PDCCH scheduling the PDSCH and CCE+1.

"PUCCH, 4 and " PUCCH , 5

Step 604: The terminal uses PUCCH format la to transmit 1-bit ACK/NACK information [ACK] corresponding to the PDSCH on the determined resource.

Step 605: The base station is in scheduling the PDCCH of the PCC with the DAI value greater than 1 and scheduling the PDCCH of the SCC η0) _η 0) _η 0) _η 0)

Configure 4 PUCCH channel resources to the terminal ^ ⁷ ^^. On ^ccff ' ³ ], ACK/NACK information is not detected according to the ACK/NACK mapping table. The base station determines that the terminal has packet loss in both PCC and SCC, and retransmits all data.

Step 606: The base station detects the ACK/NACK by using the PUCCH format la. Specifically, when the PUCCH format la is configured as a single antenna port transmission, the PUCCH resource determined according to the minimum CCE of the PDCCH of the scheduled PCC

"(1)

On, when the PUCCH format la configured as a multi-antenna port transmission on PUCCH resource determined according to the minimum CCE PDCCH scheduling PCC and CCE + 1 "ccz ^ and" ccz ^, preclude the use of _PU CCH format la detecting ACK / NACK Obtain ACK/NACK information [ACK] corresponding to the PDSCH on the PCC.

It should be noted that the PDCCH scheduled by the PDCCH with the DAI value of 1 transmitted on the PCC is replaced by the PDCCH indicating that the downlink SPS resource is released with the DAI value of 1. The DAI value transmitted on the PCC is 1 The PDSCH of the PDCCH scheduling is replaced by the PDSCH without the corresponding PDCCH (ie, the SPS PDSCH). The difference is that the acquisition of the PUCCH format la resource is a group of resources determined according to the TPC domain of the PDCCH that activates the SPS PDSCH, and the single port transmission is performed. It is 1 resource and 2 resources when multi-port transmission.

Referring to FIG. 8, the embodiment is applied to a TDD system. When the PCC is in a multi-codeword transmission mode, the first method for transmitting uplink control information is as follows:

See Figure 9 for a schematic diagram of resource scheduling and feedback under the TDD system.

Step 801: The base station configures one channel resource group for the 2-antenna port transmission to the terminal by scheduling the PDCCH of the PCC whose DAI value is greater than 1 and the TPC domain of the PDCCH scheduling the SCC. For example, this group contains 4

„(ι) „(ι) „(ι) „(ι)

Step 802: The terminal receives, on the PCC, only one PDCCH indicating that the downlink SPS resource is released, with a DAI value of 1. The terminal does not receive the PDCCH containing the channel resource indication information used by the multi-antenna port transmission.

Step 803: The terminal determines to transmit the ACK/NACK feedback information of the PCC by using the PUCCH format la/lb. Specifically, when the PUCCH format la/lb is configured as a single antenna port transmission, one PUCCH resource is determined according to the minimum CCE number of the PDCCH; when the PUCCH format la/lb is configured as a multi-antenna port transmission, according to the minimum CCE of the PDCCH The number and CCE+1 determine 2 PUCCH resources "PUCCH A and " _PUCCH , _5" . Step 804: The terminal transmits the uplink control information by using PUCCH format la or PUCCH format lb. Specifically, the terminal uses the PUCCH format la to transmit the 1-bit ACK/NACK information [ACK] corresponding to the PDCCH on the determined resource, or the terminal uses the PUCCH format lb to transmit the 1-bit ACK corresponding to the PDCCH on the determined resource. /NACK information and a combination of 1 bit NACK information for TB2 unknown [ACK, NACK].

Step 805: The PDCCH that the base station is in scheduling the PCC with the DAI value greater than 1 and the PDCCH scheduling the SCC

„(ι) „(ι) „(ι) „(ι)

Step 806: The base station detects ACK/NACK by using PUCCH format la/lb. Specifically, when the PUCCH format la/lb is configured as a single antenna port transmission, the PUCCH is determined according to the minimum CCE of the PDCCH of the scheduled PCC.

„(ι)

On the resource "cc^ ⁴ , when PUCCH format la/lb is configured for multi-antenna port transmission, _{PU is} used on the PUCCH resources "ccz^ and ccz^ determined according to the minimum CCE and CCE+1 of the PDCCH of the scheduled PCC" The CCH format la/lb detects ACK/NACK, and obtains 1-bit ACK/NACK information [ACK] corresponding to the PDCCH on the PCC or 2-bit ACK/NACK information [ACK, NACK] corresponding to 2 TB respectively.

It should be noted that replacing the PDCCH with the DAI value of 1 transmitted on the PCC indicating that the downlink SPS resource is released with the PDSCH scheduled by the PDCCH with the DAI value of 1 is also applicable. When the PDSCH simultaneously transmits 2 TBs, the terminal The PUCCH format lb is used to feed back the 1-bit ACK/NACK corresponding to each TB. The PDCCH indicating that the downlink SPS resource is released with the DAI value of 1 transmitted on the PCC is replaced by the PDSCH without the corresponding PDCCH (ie, SPS PDSCH). The difference is that the acquisition of the PUCCH format la/lb resource is a group of resources determined according to the TPC domain of the PDCCH that activates the SPS PDSCH, which is one resource for single port transmission and two resources for multi-port transmission.

Referring to FIG. 10, the embodiment is applied to a TDD system. When the PCC is in a multi-codeword transmission mode, the second method for transmitting uplink control information is as follows:

See Figure 11 for a schematic diagram of resource scheduling and feedback under the TDD system.

Step 1001: The base station configures a channel resource group for the 2 antenna port transmission to the terminal by scheduling the PDCCH of the PCC whose DAI value is greater than 1 and the TPC domain of the PDCCH scheduling the SCC. For example, this group contains 4

„(ι) „(ι) „(ι) „(ι)

PUCCH channel resource ^ ⁷ ^^. ^Ff - ³ ], the TPC fields in multiple PDCCHs indicate the same resource group.

Step 1002: The terminal receives only one PDSCH scheduled by the PDCCH with the DAI value of 1 at the PCC. For example, the PDSCH includes 2 TBs and 1 PDSCH (ie, SPS PDSCH) without a corresponding PDCCH. Terminal The PDCCH containing the channel resource indication information used for the multi-antenna port transmission is not received.

Step 1003: The terminal determines to transmit the ACK/NACK feedback information of the PCC by using the PUCCH format lb. Specifically, when the PUCCH format lb is configured as a single antenna port transmission: determining one PUCCH resource according to the minimum CCE number of the PDCCH; when the PUCCH format lb is configured as multi-antenna port transmission: according to the minimum CCE number of the PDCCH and CCE+1 Determine 2 PUCCH resources and

Step 1004: The terminal spatially combines two TB ACK/NACK information in the PDSCH scheduled by the PDCCH with the DAI value of 1, to obtain a 1-bit information NACK, and generates a 1-bit ACK/NACK information ACK for the subframe where the SPS PDSCH is located. The PUCCH format lb is used to transmit a 2-bit information combination [ACK, NACK] corresponding to 2 subframes on the determined resource.

Step 1005: The base station is in scheduling the PDCCH of the PCC whose DAI value is greater than 1 and the PDCCH nm _n m _n m _n m of the scheduling SCC.

Step 1006: The base station detects the ACK/NACK by using the PUCCH format lb. Specifically, when the PUCCH format lb is configured as a single antenna port transmission, the PUCCH resource "puccH A determined according to the minimum CCE of the PDCCH scheduling the PCC, and the PUCCH resource indicated by the TPC field of the PDCCH that activates the sps PDSCH, respectively, when the PUCCH When the format la/lb is configured as a multi-antenna port transmission, respectively, the PUCCH resources "ccz^ and ccz^ determined according to the minimum CCE and CCE+1 of the PDCCH of the scheduled PCC, and the TPC field of the PDCCH that activates the _SPS PDSCH are respectively indicated. On the PUCCH resource and "^COT j, the ACK/NACK is detected by using the _PU CCH format lb, and the 1-bit multi-TB combined ACK/NACK information [ACK, NACK] corresponding to the dynamic PDSCH and the SPS PDSCH on the PCC respectively is obtained; The ACK/NACK is detected on the PUCCH resource determined according to the minimum CCE of the PDCCH of the scheduled PCC, indicating that the terminal receives the PDCCH scheduled PDSCH with the DAI value of 1, otherwise, the terminal loses the PDCCH scheduled PDSCH with the DAI value of 1. , only received SPS PDSCH ₀

It should be noted that the PDSCH scheduled by the PDCCH with the DAI value of 1 transmitted on the PCC is replaced by

A PDCCH with a DAI value of 1 indicating that the downlink SPS resource is released is also applicable. Since it only contains 1 TB, no space merging is required.

Referring to FIG. 12, when the embodiment is applied to the TDD system, when the PCC is in the multi-codeword transmission mode, the third method for transmitting the uplink control information is as follows:

See Figure 13 for a schematic diagram of resource scheduling and feedback under the TDD system.

Step 1201: The eNB schedules a PDCCH with a DAI value greater than 1 of the PCC and a PDCCH scheduling the SCC. The TPC domain in the middle configures a channel resource group for the 2 antenna port transmission to the terminal. For example, the group contains 4

„(ι) „(ι) „(ι) „(ι)

PUCCH channel resource [ ^{pt / CCff} '. ^Ff - ³ ], the TPC fields in multiple PDCCHs indicate the same resource group.

Step 1202: The terminal receives only one PDSCH scheduled by the PDCCH with the DAI value of 1 at the PCC. For example, the PDSCH includes one TB and one PDSCH (ie, SPS PDSCH) without a corresponding PDCCH. The terminal does not receive the PDCCH containing the channel resource indication information used by the multi-antenna port transmission.

Step 1203: The terminal determines to transmit the ACK/NACK feedback information by using the PUCCH format lb with channel selection in the single port mode. There are three ways to do this:

Manner 1: The terminal can report the ACK/NACK information [ACK, ACK, NACK, NACK] of the PCC in the PUCCH format lb with channel selection transmission scheme of the single-port mode of the Rel-8 in the single-carrier mode. The bit feedback information is a spatial merging structure of multiple TB ACK/NACK information corresponding to the subframe, and generates a NACK for the subframe in which the data is not received, and the 4-bit mapping table in Rel-8 can be used according to the configuration of the high layer signaling. Or a 4-bit mapping table in Rel-10 for channel selection; candidate channel resources include activation based on SPS PDSCH

„(ι)

The PDCCH of the PDCCH indicates the one PUCCH resource determined by the information, and the resource is the resource corresponding to the first subframe (that is, the resource corresponding to the first bit ACK/NACK), and further includes the PDCCH according to the DAI value of 1 on the PCC.

„(ι)

The minimum CCE number determines one PUCCH resource Η ' ⁵ , and the resource is the resource corresponding to the second subframe (ie, the resource corresponding to the second bit ACK/NACK), because no data is received in the last two subframes on the PCC, Not sure about the last two resources.

Manner 2: The terminal can reuse the PUCCH format lb with channel selection transmission scheme of the single port mode of the Rel-8 according to the single carrier working mode, and only perform ACK/NACK feedback on the subframes that receive data on the PCC, and does not need to multi-code. The word ACK/NACK feedback information is spatially combined. which is:

If the number of feedback bits is determined according to the transmission mode, since the PCC is a multi-codeword transmission mode, a 4-bit ACK/NACK mapping table is used, and the 4-bit ACK/NACK information is a 1-bit ACK of the SPS PDSCH and a TB2 of the subframe, respectively. The NACK generated by the location, and the 1-bit ACK of each TB received in the PDSCH scheduled by the PDCCH with the DAI value of 1, that is, the feedback sequence is [ACK, NACK, ACK, ACK], and the candidate channel resource is based on the activated SPS PDSCH. The TPC domain of the PDCCH indicates the 2 PUCCH resources determined by the information " ^ccff ' ⁴ and Η ' ⁵ , and determines the 1 PUCCH resource sum according to the minimum CCE number of the PDCCH with the DAI value of 1 on the PCC, and sequentially with the ACK/NACK feedback bits. correspond.

Or, if the number of feedback bits is determined according to the actually received data, since the SPS PDSCH itself is 1 TB transmission, the PDSCH scheduled by the PDCCH with the DAI value of 1 includes 2 TBs, and the 3-bit ACK/NACK mapping table is used, 3 The bit ACK/NACK information is a 1-bit ACK of the SPS PDSCH, and a 1-bit ACK of each TB received in the PDSCH scheduled by the PDCCH having the DAI value of 1, that is, the feedback sequence is [ACK, ACK, ACK], candidate The channel resource is one determined according to the TPC domain indication information of the PDCCH that activates the SPS PDSCH. H PUCCH resource ^{'. 4,} and determining H 2 PUCCH resources according to PDCCH 1 on PCC DAI value of the lowest CCE number' ⁵ and successively with ACK / NACK feedback bits correspond.

It should be noted that the PDCCH scheduled by the PDCCH with the DAI value of 1 transmitted on the PCC is replaced by the PDCCH indicating that the downlink SPS resource is released with the DAI value of 1, because it only contains 1 TB, and the 2-bit ACK is used. The NACK mapping table, the 2-bit ACK/NACK information is a 1-bit ACK of the SPS PDSCH, and the 1-bit ACK of the PDCCH indicating the downlink SPS resource release with a DAI value of 1, that is, the feedback sequence is [ACK, ACK], the candidate channel resource. One PUCCH resource Η ' ^{5 is} determined for one PUCCH resource determined according to the TPC domain indication information of the PDCCH that activates the SPS PDSCH and the minimum CCE number of the PDCCH according to the DAI value of 1 on the PCC, and sequentially corresponds to the ACK/NACK feedback bit.

Manner 3: The terminal can retransmit the ACK/NACK information of multiple CCs by using the PUCCH format lb with channel selection transmission scheme of the Rel-10 single port mode according to the multi-carrier working mode, because the number of subframes on each carrier exceeds 2, The ACK/NACK on each carrier needs to be combined in time domain; the channel selection can be performed according to the 4-bit mapping table corresponding to the time domain merging scheme in Rel-10; the candidate channel resources are determined in the same manner as above.

Step 1204: The terminal transmits uplink control information according to the determined resource and the PUCCH format lb with channel selection transmitted by the single antenna port.

Step 1205: The PDCCH that the base station is scheduling the PCC with the DAI value greater than 1 and the PDCCH scheduling the SCC

nm _{_{_n}} m _n m _n m

Step 1206: The base station detects the ACK/NACK by using PUCCH format lb with channel selection. Specifically, on the PUCCH resource ^UCCH ' ⁴ indicated by the TPC field of the PDCCH that activates the SPS PDSCH, the DAI values determined according to the minimum CCE of the PDCCH that schedules the PCC with the DAI value of 1, and the DAI values of the scheduled SCC are 1 and 2. determining the lowest CCE of the PDCCH PUCCH resource ^"ccff ^'6 and"^ccff' ^7, detecting ACK / NACK, inverse look-up table to obtain ACK / NACK information.

Referring to Figure 14, the terminal in this embodiment includes: a receiving module 1401 and a processing module 1402.

The receiving module 1401 is configured to receive downlink data.

The processing module 1402 is configured to determine whether the receiving module receives the PDCCH that includes the resource indication information indicating the channel resource used by the multi-antenna port transmission, and when determining that the receiving module does not receive the PDCCH, use the PUCCH format la Or the PUCCH format lb or the PUCCH format lb with channel selection transmitted by the single antenna port transmits the uplink control information.

The processing module 1402 is specifically configured to: when the receiving module receives the following transmission condition, use the PUCCH format la or the PUCCH format lb or the PUCCH format lb with channel selection transmitted by the single antenna port to transmit the uplink control information: For the FDD system, the receiving module 1401 receives only one PDSCH scheduled by the PDCCH or one PDCCH indicating the release of the downlink SPS resource on the PCC; or

For the TDD system, the receiving module 1401 receives only one PDSCH scheduled by the PDCCH with a DAI value of 1 on the PCC, or one PDCCH indicating the release of the downlink SPS resource with a DAI value of 1; or

For the FDD and the TDD system, the receiving module 1401 receives only one PDSCH without a corresponding PDCCH on the PCC; or

For the TDD system, the receiving module 1401 receives only one PDSCH scheduled by the PDCCH with the DAI value of 1 on the PCC or one PDCCH indicating the release of the downlink SPS resource with the DAI value of 1, and one non-corresponding PDCCH. PDSCH.

The processing module 1402 is specifically configured to:

When transmitting uplink control information using PUCCH format lb with channel selection transmitted by a single antenna port:

单Using the single-carrier mode of operation, reusing the PUCCH format lb with channel selection scheme defined by Rel-8 or Rel-9 to transmit the uplink control information corresponding to the PCC on the single antenna port; or

多Using the multi-carrier mode of operation, reusing the PUCCH format lb with channel selection scheme defined by Rel-10 to transmit uplink control information corresponding to multiple carriers on a single antenna port; or

For the TDD system, when the receiving module 1401 receives only one PDSCH scheduled by the PDCCH with a DAI value of 1 or one PDCCH indicating the release of the downlink SPS resource with a DAI value of 1 on the PCC, and one non-corresponding In the PDSCH of the PDCCH, the uplink control information corresponding to the two subframes received on the PCC is transmitted on the single antenna port by using the PUCCH format lb with channel selection scheme.

The processing module 1402 is specifically configured to: when the uplink control information corresponding to the two subframes received on the PCC is transmitted by using a PUCCH format lb with channel selection scheme on a single antenna port, according to the receiving module The minimum CCE of the PDCCH received on the PCC and the indication information of the TPC domain of the PDCCH that activates the SPS PDSCH determine the channel resource used by the PUCCH format lb with channel selection scheme.

The processing module 1402 is specifically configured to: when transmitting, by using a PUCCH format lb with channel selection scheme, the uplink control information corresponding to the two subframes received on the PCC in a single antenna port, according to a transmission mode of the PCC, or The number of bits of the uplink control information corresponding to the two subframes transmitted by the PUCCH format lb with channel selection scheme is determined according to the number of codewords that are actually received.

The processing module 1402 is specifically configured to, for the TDD system, determine that the PDCCH that includes the resource indication information is a PDCCH corresponding to a PCC having a DAI value greater than 1 and a PDCCH corresponding to the SCC; and for the FDD system, determining the resource indication information The PDCCH is a PDCCH corresponding to the SCC.

The processing module 1402 is specifically configured to: determine that the resource indication information is a downlink used by the PDCCH Controls the reuse of the TPC field in the DCI format.

The processing module 1402 is specifically configured to: when the uplink control information is transmitted by using the PUCCH format la or the PUCCH format lb, transmit the uplink control information according to the number of antenna ports configured by the PUCCH format la or the PUCCH format lb.

When the uplink control information is transmitted by using PUCCH format la or PUCCH format lb, the processing module

1402 is specifically used for:

The PUCCH format la is used to transmit 1-bit ACK/NACK information corresponding to the data received on the PCC, wherein if the PCC is in the multi-codeword transmission mode, feedback information on the multi-codeword in the subframe including the multiple codewords is used. Space consolidation; or,

The PUCCH format lb is used to transmit 2-bit ACK/NACK information corresponding to the data received on the PCC, where the 2-bit ACK/NACK feedback information is received by the receiving module when only one subframe is received on the PCC. The 1-bit ACK/NACK feedback information corresponding to each codeword in the sub-frame is configured, and the 1-bit NACK is generated as the feedback information for the unreceived codeword, when the receiving module only receives 2 subframes on the PCC, The 2-bit ACK/NACK feedback information is composed of 1-bit ACK/NACK feedback information corresponding to each subframe, wherein space is provided for ACK/NACK feedback information of multiple codewords in a subframe including multiple codewords. merge.

When the uplink control information is transmitted by using the PUCCH format la or the PUCCH format lb, the processing module 1402 is specifically configured to: determine the PUCCH channel resource used by the PUCCH format la or PUCCH format lb transmission according to the following method:

For the FDD system, obtained according to the PDCCH of the scheduled PDSCH received on the PCC or the minimum CCE number of the PDCCH indicating the release of the downlink SPS resource; or obtained according to the indication information of the TPC domain in the PDCCH that activates the SPS PDSCH received on the PCC. The indication information indicates one of a plurality of groups of resources pre-configured by the high layer signaling, where each resource group includes at least one PUCCH resource;

For the TDD system, the PDCCH according to the DAI value of the scheduled PDSCH received on the PCC is 1 or the minimum CCE number of the PDCCH indicating the downlink SPS resource release received on the PCC is 1; or according to the activation in the PCC The indication information of the TPC domain in the PDCCH of the received SPS PDSCH is obtained, and the indication information indicates one of a plurality of groups of resources pre-configured by the high layer signaling, where each group of resources includes at least one PUCCH resource.

When the PUCCH format la or the PUCCH format lb is transmitted by the multi-antenna port, two channel resources are obtained according to the minimum CCE number and the minimum CCE number +1 of the received PDCCH; or, the SPS PDSCH is activated. Pre-configured sets of resources for high-level signaling obtained by the indication information of the TPC domain in the PDCCH A group of resources, where each group of resources includes 2 PUCCH resources.

Referring to FIG. 15, the base station in this embodiment includes: a sending module 1502 and a receiving module 1503.

The sending module 1502 is configured to determine a PUCCH channel resource used by the terminal when transmitting the PUCCH format lb with channel selection multi-antenna port, and send configuration information indicating the channel resource to the terminal by using PDCCH signaling.

The receiving module 1503 is configured to detect uplink control information sent by the terminal on the determined PUCCH channel resource; when uplink control information is not detected on the PUCCH channel resource, according to PUCCH format la or PUCCH format lb or single The PUCCH format lb with channel selection scheme of the antenna port transmission detects the uplink control information sent by the terminal on the corresponding channel resource.

Preferably, the sending module 1502 indicates, by using the resource indication information in the PDCCH, that the PUCCH resource used for the multi-antenna port transmission of the terminal should be used with the PUCCH format lb or channel selection of the PUCCH format la or PUCCH format lb or the single antenna port transmission. The PUCCH resources are different.

Or:

The transmitting module 1502 is configured to send, on the PCC, only one PDSCH scheduled by the PDCCH or one PDCCH indicating the release of the downlink SPS resource, and/or one PDSCH without the corresponding PDCCH.

The receiving module 1503 is configured to detect, according to the PUCCH format la or the PUCCH format lb or the PUCCH format lb with channel selection scheme of the single antenna port transmission, the uplink control information sent by the terminal is detected on the corresponding channel resource.

In the embodiment of the present invention, for a terminal that transmits uplink control information on a multi-antenna port (such as a 2-antenna port) by using a PUCCH format lb with channel selection, when an indication indicating that a channel resource used for transmitting the multi-antenna port is not received is received When the PDCCH of the information is used, the terminal transmits the uplink control information by using PUCCH format la or PUCCH format lb or PUCCH format lb with channel selection transmitted by the single antenna port. The embodiments of the present invention provide multiple implementation scenarios for multiple transmission scenarios to meet the needs of different scenarios.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention is in the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) in which computer usable program code is embodied.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

Rights request

A method for transmitting uplink control information, comprising the steps of:

The terminal receives downlink data;

If the judgment is not received, the terminal uses the physical uplink control channel format la PUCCH format la or PUCCH format lb or the channel selection-based physical uplink control channel format transmitted by the single antenna port lb PUCCH format lb with channel selection transmission uplink control information.

2. The method according to claim 1, wherein the terminal transmits uplink control information by using a PUCCH format la or a PUCCH format lb or a PUCCH format lb with channel selection transmitted by a single antenna port in the following reception situation:

The terminal receives only one physical downlink shared channel (PDSCH) scheduled by the PDCCH, or one PDCCH indicating that the downlink semi-persistent scheduling SPS resource is released, on the primary component carrier PCC; or

The terminal only receives one PDCCH scheduled by the downlink allocation index DAI value of 1 on the PCC.

PDSCH, or a PDCCH indicating a downlink SPS resource release with a DAI value of 1; or

The terminal receives only one PDSCH without a corresponding PDCCH on the PCC; or

The terminal receives only one PDSCH scheduled by the PDCCH with the DAI value of 1 on the PCC, or one PDCCH indicating the release of the downlink SPS resource with the DAI value of 1, and one PDSCH with no corresponding PDCCH.

3. The method according to claim 1 or 2, wherein when the terminal is transmitted by a single antenna port

PUCCH format lb with channel selection when transmitting uplink control information, specifically includes:

When the terminal receives only one PDSCH scheduled by the PDCCH with the DAI value of 1 on the PCC, or one PDCCH indicating the release of the downlink SPS resource with the DAI value of 1, and one PDSCH without the corresponding PDCCH, The uplink control information corresponding to the two subframes received on the PCC is transmitted on the single antenna port by using the PUCCH format lb with channel selection scheme.

The method according to claim 3, wherein when the terminal uses the PUCCH format lb with channel selection scheme to transmit the uplink control information corresponding to the two subframes received on the PCC in a single antenna port, The number of feedback bits of the uplink control information corresponding to the two subframes is specifically determined according to a transmission mode of the PCC, or is determined according to the actually received number of codewords.

The method according to claim 1 or 2, wherein when the terminal transmits the uplink control information by using the PUCCH format la or the PUCCH format lb, the method specifically includes:

The terminal transmits the uplink control information according to the number of antenna ports configured by the PUCCH format la or PUCCH format lb.

The terminal uses the PUCCH format la to transmit 1-bit acknowledgement/negative acknowledgement ACK/NACK information corresponding to the data received on the PCC, wherein if the PCC is in the multi-codeword transmission mode, the downlink sub-packet includes multiple codewords. The feedback information of the multi-codewords in the frame is spatially combined; or

The terminal uses the PUCCH format lb to transmit 2-bit ACK/NACK information corresponding to the data received on the PCC, where the 2-bit ACK/NACK feedback information is received when the terminal receives only one subframe on the PCC. Consisting of 1-bit ACK/NACK feedback information corresponding to each codeword in the subframe, and generating 1-bit NACK for the unreceived codeword as feedback information, when the terminal only receives 2 subframes on the PCC The 2-bit ACK/NACK feedback information is composed of 1-bit ACK/NACK feedback information corresponding to each subframe, where ACK/NACK feedback information of multiple codewords in a subframe including multiple codewords is performed. Space merge.

The method according to claim 1 or 2 or 3, wherein when the terminal uses PUCCH format la or PUCCH format lb, or when the terminal uses a single antenna port to transmit PUCCH format lb With the channel selection scheme, when the uplink control information corresponding to the two subframes received on the PCC is transmitted by the single antenna port, the PUCCH channel resource used by the terminal is specifically:

Obtained according to the PDCCH that schedules the PDSCH received on the PCC or the minimum CCE number of the PDCCH indicating the release of the downlink SPS resource; or, according to the indication information of the TPC field in the PDCCH that activates the SPS PDSCH received on the PCC, The indication information indicates one of a plurality of sets of resources pre-configured by the high layer signaling, where each resource group includes at least one PUCCH resource; or

Obtained according to the PDCCH of the DAI value of the scheduled PDSCH received on the PCC or the minimum CCE number of the PDCCH indicating the downlink SPS resource release received on the PCC; or received on the PCC according to the activation Obtained by the indication information of the TPC domain in the PDCCH of the SPS PDSCH, the indication information indicates one of a plurality of groups of resources pre-configured by the high layer signaling, where each group of resources includes at least one PUCCH resource.

The method according to claim 7, wherein when the terminal transmits uplink control information by using PUCCH format la or PUCCH format lb, if the PUCCH format la or PUCCH format lb 传输 is transmitted by using multiple antenna ports The PUCCH channel resource used by the PUCCH format la or PUCCH format lb transmission is specifically:

2 channel resources obtained according to the minimum CCE number of the received PDCCH and the minimum CCE number +1; or higher layer signaling obtained according to the indication information of the TPC domain in the PDCCH that activates the SPS PDSCH A set of resources in a plurality of configured resources, where each set of resources includes 2 PUCCH resources.

9. A terminal for transmitting uplink control information, comprising: the following steps:

a receiving module, configured to receive downlink data;

The terminal according to claim 9, wherein the processing module is specifically configured to transmit the PUCCH format la or the PUCCH format lb or the single antenna port when the receiving module receives the following transmission condition. PUCCH format lb with channel selection transmits uplink control information:

The receiving module receives only one PDSCH scheduled by the PDCCH or one PDCCH indicating the release of the downlink SPS resource on the PCC; or

The receiving module receives only one PDSCH scheduled by the PDCCH with a DAI value of 1 on the PCC, or one PDCCH indicating that the downlink SPS resource is released with a DAI value of 1; or

The receiving module receives only one PDSCH without a corresponding PDCCH on the PCC; or, the receiving module receives only one PDSCH scheduled by a PDCCH with a DAI value of 1 or a DAI value of 1 on the PCC. A PDCCH indicating downlink SPS resource release, and a PDSCH having no corresponding PDCCH.

The terminal according to claim 9 or 10, wherein the processing module is specifically configured to: when transmitting uplink control information by using a PUCCH format lb with channel selection transmitted by a single antenna port:

单Using the single-carrier mode of operation, reusing the PUCCH format lb with channel selection scheme defined by Rel-8 or Rel-9 to transmit the uplink control information corresponding to the PCC on the single antenna port; or, using the multi-carrier working mode, reusing the Rel-10 definition The PUCCH format lb with channel selection scheme transmits uplink control information corresponding to multiple carriers on a single antenna port; or, when the receiving module receives only one PDSCH or one scheduled by a PDCCH with a DAI value of 1 on the PCC When the DAI value is 1 indicating that the downlink SPS resource is released and the PDSCH having no corresponding PDCCH, the PUCCH format lb with channel selection scheme is used to transmit the two subframes received on the PCC in a single antenna port. Uplink control information; or,

When transmitting uplink control information using PUCCH format la or PUCCH format lb:

The PUCCH format la is used to transmit 1-bit ACK/NACK information corresponding to the data received on the PCC, wherein if the PCC is in the multi-codeword transmission mode, feedback information on the multi-codeword in the subframe including the multiple codewords is used. Or performing spatial merging; or, transmitting the 2-bit ACK/NACK information corresponding to the data received on the PCC by using the PUCCH format lb, where the 2-bit ACK is received when the receiving module receives only one subframe on the PCC. The /NACK feedback information is composed of 1-bit ACK/NACK feedback information corresponding to each codeword in the subframe. Generating a 1-bit NACK for the unreceived codeword as feedback information. When the receiving module receives only 2 subframes on the PCC, the 2-bit ACK/NACK feedback information is a 1-bit ACK corresponding to each subframe. /NACK feedback information is constructed, wherein ACK/NACK feedback information of multiple codewords in a subframe including a plurality of codewords is spatially combined.

The terminal according to claim 11, wherein the processing module is specifically configured to: when the PUCCH format lb with channel selection scheme is used, transmit the two subframes received on the PCC in a single antenna port. In the corresponding uplink control information, the number of bits of the uplink control information corresponding to the two subframes transmitted by the PUCCH format lb with channel selection scheme is determined according to the transmission mode of the PCC or the number of codewords actually received.

The terminal according to claim 9 or 10, wherein the processing module is specifically configured to: when transmitting uplink control information by using PUCCH format la or PUCCH format lb, according to the PUCCH format la or PUCCH The number of antenna ports configured by format lb transmits the uplink control information.

The terminal according to claim 9 or 10 or 11, wherein when the uplink control information is transmitted by using the PUCCH format la or the PUCCH format lb, or the PUCCH format lb with the single antenna port is transmitted by the terminal The channel selection scheme is used to: when the single antenna port transmits the uplink control information corresponding to the two subframes received on the PCC, the processing module is specifically configured to: determine the used PUCCH channel resource according to the following method:

Obtained according to a PDCCH that schedules a PDSCH received on the PCC or a minimum CCE number of a PDCCH indicating downlink SPS resource release; or obtained according to indication information of a TPC field in a PDCCH that activates an SPS PDSCH received on a PCC, the indication The information indicates one of a plurality of sets of pre-configured resources, and each of the resource groups includes at least one PUCCH resource; or

Obtaining according to the PDCCH of the DAI value of the scheduled PDSCH received on the PCC, or the minimum CCE number of the PDCCH indicating the release of the downlink SPS resource received on the PCC; or receiving the received PDCCH on the PCC according to the activation The indication information of the TPC domain in the PDCCH of the SPS PDSCH is obtained, and the indication information indicates one of a plurality of groups of resources pre-configured by the high layer signaling, where each group of resources includes at least one PUCCH resource.

The terminal according to claim 14, wherein when the uplink control information is transmitted by using PUCCH format la or PUCCH format lb, if the PUCCH format la or PUCCH format lb is transmitted by using multiple antenna ports, The processing module is specifically configured to: determine, according to the following method, a PUCCH channel resource used by the PUCCH format la or PUCCH format lb transmission:

Obtaining 2 channel resources according to the minimum CCE number and the minimum CCE number +1 of the received PDCCH; or a plurality of pre-configured high layer signaling obtained according to the indication information of the TPC domain in the PDCCH that activates the SPS PDSCH A group of resources in a resource, where each group of resources includes 2 PUCCH resources.