Detailed Description
The present invention provides an uplink control information transmission method, which is implemented as shown in fig. 2, and includes the following operations when a UE is configured to transmit ACK/NACK information using PUCCH format3 and does not receive a PDCCH indicating a PUCCH format3 channel resource corresponding to ACK/NACK, or when the UE is configured with more than 1 carrier and is configured to transmit ACK/NACK information using PUCCH format1b with channel selection:
step 100, the UE generates ACK/NACK information;
step 110, the UE generates periodic CSI;
and step 120, the UE transmits the periodic CSI and the ACK/NACK information through the same uplink subframe on channel resources corresponding to the periodic CSI.
Specifically, for a scenario in which the UE is configured to transmit ACK/NACK information using PUCCH format3 and does not receive a PDCCH indicating a PUCCH format3 channel resource corresponding to the ACK/NACK, any one of the following situations may be used:
in the first case:
the UE only receives 1 PDSCH on the PCC and the PDSCH has a corresponding PDCCH or 1 PDCCH indicating a release of downlink SPS resources.
This first case can also be described as: the UE only receives 1 downlink subframe on the PCC, wherein the downlink subframe is a downlink subframe which is transmitted by 1 PDSCH and has a corresponding PDCCH on the PDSCH, or 1 downlink subframe which indicates PDCCH transmission for releasing the SPS resources.
The application scenario of this case may be in FDD system or TDD system. If the system is a TDD system, configuring 1-6 uplink/downlink of TDD, and setting the DAI value of the PDCCH to be 1.
In the present invention, the TDD uplink/downlink configurations 1-6 can also be described as TDD uplink/downlink configurations 1/2/3/4/5/6.
In the second case:
the UE receives only 1 SPS PDSCH on the PCC and does not receive a PDCCH indicating a release of downlink SPS resources.
The second case can also be described as: the UE receives only 1 downlink subframe on the PCC, where the downlink subframe is a downlink subframe transmitted by 1 SPS PDSCH.
In the third case:
the UE only receives 1 SPS PDSCH and 1 other PSDCH on the PCC, and the PDSCH has a corresponding PDCCH or 1 PDCCH for indicating the release of the downlink SPS resources.
The third case can be described as: the UE only receives 2 downlink subframes on the PCC, wherein 1 downlink subframe is a downlink subframe with 1 PDSCH transmission and the PDSCH having a corresponding PDCCH, and the other 1 downlink subframe is a downlink subframe with 1 SPS PDSCH transmission or 1 PDCCH transmission indicating downlink SPS resource release.
The application scenario of this case may be in a TDD system, and for TDD uplink/downlink configuration 1-6, the DAI value of the PDCCH is 1.
Before step 120, the method provided by the present invention may further include the following operations: and the UE acquires the channel resources corresponding to the periodic CSI according to a high-level signaling or a PDCCH signaling or a carrier activation/deactivation signaling. Wherein the channel resource type corresponding to the periodic CSI includes at least one of: the channel resource comprises PUCCH format2/2a/2b channel resources, PUCCH format3 channel resources corresponding to periodic CSI and channel resources based on a Physical Uplink Shared Channel (PUSCH) transmission structure corresponding to the periodic CSI.
And if the UE activates/deactivates the signaling according to the carrier wave, acquiring the channel resource corresponding to the periodic CSI. Specifically, the carrier activation signaling carries PUCCH format3 channel resources corresponding to periodic CSI, and the carrier deactivation signaling carries pucchfmat 2/2a/2b channel resources. The carrier activation/deactivation signaling may specifically be: a MAC (Medium access Control) CE (Control Element).
When the PUCCH format2/2a/2 b/3 for transmitting the periodic CSI adopts single antenna port transmission, the channel resources corresponding to the periodic CSI comprise 1 PUCCH format2/2a/2 b/3 channel resources; when the PUCCHformat 2/2a/2b/3 of the transmission period CSI adopts multi-antenna port (2-antenna port SORTD (Spatial Orthogonal resource transmit Diversity)) transmission, the channel resources corresponding to the period CIS include 2 PUCCH format2/2a/2 b/3 channel resources.
Preferably, when the UE acquires the channel resource corresponding to one type of periodic CSI, the channel resources corresponding to other acquired periodic CSI of other types are invalidated.
In the present invention, the specific implementation manner of the step 120 may be: judging the channel resource type corresponding to the acquired periodic CSI; if the channel resource corresponding to the periodic CSI at least comprises a PUCCH format2/2a/2b channel resource, the UE transmits the periodic CSI and the ACK/NACK information through the same uplink subframe by using PUCCH format2/2a/2b on the PUCCH format2/2a/2b channel resource; if the channel resource corresponding to the periodic CSI is only the PUCCH format3 channel resource corresponding to the periodic CSI, the UE transmits the periodic CSI and the ACK/NACK information through the same uplink subframe by using the PUCCH format3 on the PUCCH format3 channel resource corresponding to the periodic CSI; and if the channel resource corresponding to the periodic CSI is only the channel resource corresponding to the periodic CSI and based on the PUSCH transmission structure, the UE transmits the periodic CSI and the ACK/NACK information through the same uplink subframe by using a transmission scheme based on the PUSCH transmission structure on the channel resource corresponding to the periodic CSI and based on the PUSCH transmission structure. The transmission scheme based on the PUSCH transmission structure refers to a channel transmission mode that reuses an existing PUSCH transmission structure or a channel transmission mode that is improved based on the existing PUSCH transmission structure. For example and without limitation, if the channel resource corresponding to the periodic CSI is obtained through higher layer signaling, the channel resource corresponding to the periodic CSI may include a PUCCH format2/2a/2b channel resource and a PUCCH format3 channel resource corresponding to the periodic CSI.
In the present invention, the specific implementation manner of step 120 may also be implemented by using a fixed PUCCH format, and specifically includes the following implementation manners:
the UE fixedly uses PUCCH format2/2a/2 b. When the channel resource corresponding to the periodic CSI comprises a PUCCH format2/2a/2b channel resource, transmitting the periodic CSI and the ACK/NACK information through the same uplink subframe on the PUCCH format2/2a/2b channel resource; and when no PUCCH format2/2a/2b channel resource exists, discarding CSI and transmitting the ACK/NACK information according to the original ACK/NACK transmission scheme.
In order to avoid the situation that no PUCCH format2/2a/2b channel resource exists, preferably, this implementation is suitable for the UE to acquire the channel resource corresponding to the periodic CSI through higher layer signaling.
Or,
the UE fixes using PUCCH format 3. When the channel resource corresponding to the periodic CSI comprises a PUCCHFIform 3 channel resource corresponding to the periodic CSI, transmitting the periodic CSI and the ACK/NACK information through the same uplink subframe on a PUCCH format3 channel resource corresponding to the periodic CSI; and when no PUCCH format3 channel resource exists, discarding CSI and transmitting the ACK/NACK information according to the original ACK/NACK transmission scheme.
In order to avoid the situation that there is no PUCCH format3 channel resource, preferably, this implementation is suitable for the UE to acquire the channel resource corresponding to the periodic CSI through higher layer signaling.
Or,
the UE fixedly uses a transmission scheme based on a PUSCH transmission structure. When the channel resource corresponding to the periodic CSI comprises a channel resource corresponding to the periodic CSI and based on a PUSCH transmission structure, transmitting the periodic CSI and the ACK/NACK information through the same uplink subframe on the channel resource corresponding to the periodic CSI and based on the PUSCH transmission structure; and when no channel resource based on the PUSCH transmission structure corresponding to the periodic CSI exists, discarding the CSI and transmitting the ACK/NACK information according to the original ACK/NACK transmission scheme.
And if the UE is on the PUCCH format2/2a/2b channel resource, transmitting the periodic CSI and the ACK/NACK information through the same uplink subframe by using PUCCH format2/2a/2 b. Under a normal CP, when ACK/NACK information is 1-bit information, the periodic CSI and the ACK/NACK information are transmitted through the same uplink subframe by using PUCCH format2 a; under a normal CP, when ACK/NACK information is 2-bit information, the periodic CSI and the ACK/NACK information are transmitted through the same uplink subframe by using PUCCH format2 b; and under the extended CP, the periodic CSI and the ACK/NACK information are transmitted through the same uplink subframe by using PUCCH format 2.
In the present invention, the step 100 may be specifically implemented by any one of the following manners:
implementation manner one of step 100: the UE generates 2-bit information, and the 2-bit information indicates the number of correctly received PDSCHs and PDCCHs indicating the release of the downlink SPS resources as ACK/NACK information.
If the UE receives the PDSCH transmitted by multiple codewords, correctly receiving the PDSCH transmitted by multiple codewords means that each codeword of the PDSCH transmitted by multiple codewords is correctly received.
For example, when the UE is configured to transmit ACK/NACK information using PUCCH format3, if the UE receives a PUSCH and the PUSCH has a corresponding PDCCH (in the first case or the third case), the PDSCH is a PDSCH of multi-codeword transmission.
The implementation mode is suitable for an application scenario that the UE is configured to transmit the ACK/NACK information by using PUCCH format3, and is also suitable for an application scenario that the UE is configured with more than 1 carrier and configured to transmit the ACK/NACK information by using PUCCH format1b with channel selection.
For the TDD system, when 2 carriers are aggregated, at most 8 downlink subframes (corresponding to 8 PDSCHs and/or PDCCHs) exist, and one-to-many mapping exists between different states of 2-bit information b (0) and b (1) and the number of correctly received PDSCHs and PDCCHs, as shown in table 1. For the FDD system, when 2 carriers are aggregated, there are only 2 downlink subframes at most, (corresponding to 2 PDSCHs and/or PDCCHs), and one-to-one mapping exists between different states of 2-bit information b (0) and b (1) and the number of correctly received PDSCHs and PDCCHs, as shown in table 2.
TABLE 1
Correctly received PDSCH and number of PDCCH indicating downlink SPS resource release |
b(0),b(1) |
0 or None (UE detects data loss) |
0,0 |
1 |
1,1 |
2 |
1,0 |
3 |
0,1 |
4 |
1,1 |
5 |
1,0 |
6 |
0,1 |
7 |
1,1 |
8 |
1,0 |
9 |
0,1 |
TABLE 2
Implementation manner two of step 100: the UE generates 2-bit information indicating the number of correctly received TBs (transport blocks) or codewords as ACK/NACK information.
Specifically, the number of TBs or codewords of the correctly received PDSCH and the PDCCH indicating the release of the downlink SPS resources is included. Specifically, for a PDSCH without a corresponding PDCCH and a PDCCH indicating downlink SPS resource release, a single codeword transmission mode is fixedly adopted, only 1 TB or 1 codeword is transmitted in one PDSCH without a corresponding PDCCH or a PDCCH indicating downlink SPS resource release, and if the TB or the codeword is correctly received, it can be determined that the PDSCH without a corresponding PDCCH or the PDCCH indicating downlink SPS resource release is correctly received, that is, the corresponding ACK/NACK feedback information is 1-bit ACK. For the corresponding PDSCH, a single codeword or single TB transmission mode may be adopted, or a multiple codeword transmission mode may also be adopted, and when a multiple codeword transmission mode is adopted, only 1 TB or 1 codeword may be transmitted in one PDSCH having the corresponding PDCCH, or 2 TBs or 2 codewords may be transmitted at the same time; when a single codeword transmission mode is adopted, or a multi-codeword transmission mode is adopted but only 1 TB or 1 codeword can be transmitted in one PDSCH with a corresponding PDCCH, the condition is consistent with that of the PDSCH without the corresponding PDCCH or the PDCCH for indicating the release of the downlink SPS resources; when a multi-codeword transmission mode is adopted and 2 TBs or 2 codewords are simultaneously transmitted in one PDSCH with a corresponding PDCCH, the PDSCH with the corresponding PDCCH can be judged to be correctly received only if the 2 TBs or 2 codewords are correctly received, that is, the corresponding ACK/NACK feedback information is obtained after the ACK/NACK feedback information spaces of the 2 TBs or 2 codewords are combined (logical and).
The implementation mode is suitable for an application scenario that the UE is configured to transmit the ACK/NACK information by using PUCCH format3, and is also suitable for an application scenario that the UE is configured with more than 1 carrier and configured to transmit the ACK/NACK information by using PUCCH format1b with channel selection.
Preferably, this implementation is applicable to FDD systems. If the UE is configured with more than 1 carrier and configured to transmit ACK/NACK information using PUCCH format1b with channel selection, there are only one 1-to-2 mapping in the FDD system, for example, the mapping relationship between different states of correctly received 1 TB and correctly received 4 TBs corresponding to the same b (0), b (1) state, 2-bit information b (0), and b (1) and the number of correctly received TBs or codewords is shown in table 3. If the UE is configured to transmit ACK/NACK information using PUCCH format3, in the FDD system, there are at most 3 TBs, 2-bit information b (0), and there is a one-to-one mapping relationship between different states of b (1) and the number of correctly received TBs or codewords, as shown in table 4.
TABLE 3
Number of correctly received TBs or codewords |
b(0),b(1) |
0 |
0,0 |
1 |
1,1 |
2 |
1,0 |
3 |
0,1 |
4 |
1,1 |
TABLE 4
Number of correctly received TBs or codewords |
b(0),b(1) |
0 |
0,0 |
1 |
1,1 |
2 |
1,0 |
3 |
0,1 |
The third implementation manner of the step 100: for the FDD system, when the UE is configured with 2 carriers and transmits ACK/NACK information using PUCCH format1b with channel selection, the UE generates 2-bit information, each bit of information being 1-bit ACK/NACK feedback information for 1 carrier.
The 1-bit ACK/NACK feedback information of 1 carrier specifically refers to ACK/NACK feedback information of a PDSCH received on the carrier or a PDCCH indicating release of downlink SPS resources.
For 2 carriers configured by the UE, if the UE does not receive the PDSCH or the PDCCH indicating the SPS resource release on the carrier c, the 1-bit ACK/NACK feedback information of the carrier c is NACK.
For 2 carriers configured by the UE, if the UE receives the PDSCH transmitted by multiple code words on the carrier c, the 1-bit ACK/NACK feedback information of the carrier c refers to ACK/NACK feedback information obtained by spatially combining ACK/NACK feedback information of each code word of the PDSCH transmitted by multiple code words.
The implementation manner of the step 100 is four: when the UE is configured to transmit ACK/NACK information using PUCCH format3, for the above-mentioned first or second case, the UE generates 1-bit information, where the 1-bit information is 1-bit ACK/NACK feedback information of the received PDSCH or PDCCH indicating downlink SPS resource release.
Wherein, if the received PDSCH is a PDSCH transmitted by multiple code words, the 1-bit information refers to 1-bit ACK/NACK feedback information obtained by spatially combining ACK/NACK feedback information of each code word of the PDSCH transmitted by multiple code words.
Implementation of step 100 is fifth: when the UE is configured to transmit ACK/NACK information using PUCCH format3, for the above case one or case two, the UE generates 2-bit information, where 1-bit information is 1-bit ACK/NACK feedback information of the received PDSCH or a PDCCH indicating downlink SPS resource release, and if the received PDSCH is a PDSCH of multi-codeword transmission, the 1-bit information refers to 1-bit ACK/NACK feedback information obtained by spatially combining ACK/NACK feedback information of each codeword of the PDSCH of the multi-codeword transmission, and the other 1-bit information is NACK feedback information.
Specifically, the UE may generate 1 st bit information as 1 bit ACK/NACK feedback information of the received PDSCH or a PDCCH indicating downlink SPS resource release according to an agreement with the base station, and the 2 nd bit information is NACK feedback information; or, the generated 1 st bit information is NACK, and the 2 nd bit information is 1 bit ACK/NACK feedback information of the received PDSCH or the PDCCH indicating the release of the downlink SPS resources.
Implementation of step 100 is six: when the UE is configured to transmit ACK/NACK information using PUCCH format3, for the third or fourth case, the UE generates 2-bit information, where 1-bit information is received 1-bit ACK/NACK feedback information of a PDSCH without a corresponding PDCCH, and the other 1-bit information is received PDSCH with a corresponding PDDCH or 1-bit ACK/NACK feedback information of a downlink subframe transmitting a PDCCH indicating release of downlink SPS resources, and if the received PDSCH with a corresponding PDCCH is a PDSCH with multi-codeword transmission, the 1-bit information is 1-bit ACK/NACK feedback information obtained by spatially combining ACK/NACK feedback information of each codeword of the PDSCH with multi-codeword transmission.
Specifically, the UE may generate, according to the agreement with the base station, 1 st bit of information that is 1 bit of ACK/NACK feedback information of the received PDSCH without the corresponding PDCCH, and 2 nd bit of information that is 1 bit of ACK/NACK feedback information of the received PDSCH with the corresponding PDDCH or a downlink subframe that transmits the PDCCH indicating release of the downlink SPS resources; or, the generated 1 st bit information is 1 bit ACK/NACK feedback information of a received PDSCH with a corresponding PDDCH or a downlink subframe transmitting a PDCCH indicating a downlink SPS resource release, and the 2 nd bit information is 1 bit ACK/NACK feedback information of a received PDSCH without a corresponding PDCCH.
Implementation manner seven of step 100: and when the UE transmits the periodic CSI and the ACK/NACK information through the same uplink subframe by using a transmission scheme based on a PUSCH transmission structure on the channel resources based on the PUSCH transmission structure corresponding to the periodic CSI. According to the number N of carriers configured by the UE, the transmission mode of each carrier and the number M of subframes which need to perform ACK/NACK feedback on the current uplink subframe (namely the same uplink subframe) of each carriercThe UE generatesBit ACK/NACK feedback information. When the transmission mode of the carrier C is single code word or the transmission mode is multi-code word but the multi-code word ACK/NACK feedback information is spatially combined, CcNot 1, otherwise, Cc2. Wherein M on each carriercEach subframe n in the sub-frames corresponds to CcBit ACK/NACK feedback information, if the UE does not receive PDSCH or PDCCH indicating SPS resource release in sub-frame n of carrier C, C corresponding to sub-frame n of carrier CcThe bit ACK/NACK feedback information is NACK.
The implementation manner of the step 100 is eight: and when the UE transmits the periodic CSI and the ACK/NACK information through the same uplink subframe on a channel resource based on a PUSCH transmission structure corresponding to the periodic CSI. If the UE is configured with more than 1 carrier and configured to transmit ACK/NACK information using PUCCH format1b with channel selection: for FDD or TDD system and M is 1, the UE generates according to the number of carriers N configured by the UE and the transmission mode of each carrierBit ACK/NACK feedback information, each subframe n in M subframes on each carrier corresponds to CcBit ACK/NACK feedback information, if the UE does not receive PDSCH or PDCCH indicating SPS resource release in the subframe n of the carrier C, the C corresponding to the subframe n of the carrier CcThe bit ACK/NACK feedback information is NACK, when the transmission mode of the carrier C is a single code word, CcNot 1, otherwise, Cc2; for a TDD system and M is 2, the UE generates N x M bit ACK/NACK feedback information, each subframe N in M subframes on each carrier corresponds to 1 bit ACK/NACK feedback information, if the UE does not receive a PDSCH or a PDCCH indicating SPS resource release on a subframe N on a carrier c, the 1 bit ACK/NACK feedback information corresponding to the subframe N on the carrier c is NACK, and for the subframe N containing multi-code word transmission, the ACK/NACK feedback information is 1 bit feedback information obtained by carrying out spatial combination on the multi-code word ACK/NACK feedback information in the subframe N; for TDD systems and M is greater than 2, the UE generates for each carrierAnd generating 2-bit information which indicates the number of the subframes which are continuously and correctly received from the first subframe with data transmission on the carrier. And M is the number of subframes for performing ACK/NACK feedback on the current uplink subframe.
In the present invention, the periodic CSI transmitted in the same uplink subframe in step 120 may specifically include periodic CSI of 1 carrier. Wherein, if there are periodic CSI of multiple carriers to be transmitted in the same uplink subframe, the periodic CSI of the 1 carrier is periodic CSI of 1 carrier selected according to a predetermined order. Or,
in step 120, the periodic CSI transmitted by the same uplink subframe may specifically include periodic CSI of all or part of carriers that need to transmit periodic CSI in the same uplink subframe according to a predetermined sequence, and the total bit number of the selected periodic CSI does not exceed the CSI bit threshold. In this case, the method is preferably applied to the UE to transmit the periodic CSI and the ACK/NACK information through the same uplink subframe by using the PUCCH format3 on the PUCCH format3 channel resource corresponding to the periodic CSI. Or,
when the total number of bits of the periodic CSI of all carriers does not exceed the CSI bit threshold, the periodic CSI transmitted by the same uplink subframe in step 120 may specifically include the periodic CSI of all carriers that need to transmit the periodic CSI in the same uplink subframe.
When the UE transmits the periodic CSI and the ACK/NACK information through the same uplink subframe on a PUCCH format2/2a/2b channel resource, the CSI bit threshold value is a value that does not exceed the maximum transmission bit number of the PUCCH format2/2 a/b, for example, 11 bits; or, when the UE transmits the periodic CSI and the ACK/NACK information through the same uplink subframe on the PUCCH format3 resource corresponding to the periodic CSI, the CSI bit threshold value is a value that is not more than the maximum transmission bit number of the PUCCH format3 minus a bit number a occupied by the ACK/NACK information, for example, 22-a bits, and when a is 2, for example, 20 bits; alternatively, the value is a value not exceeding the maximum transmission bit number of PUCCH format3 minus the bit number a occupied by the ACK/NACK information and the bit number (1 bit) occupied by SR (scheduling request) information, and is, for example, 22-a-1 bits, and when a is 2, it is, for example, 19 bits.
Wherein the predetermined sequence is: and the priority of the reporting types of the periodic CSI is in the order from high to low. For the reporting type priorities of the CSI in the same period, the predetermined sequence is further the sequence of carrier numbers from small to large. The highest priority is the highest priority of periodic CSI Reporting Types 3,5,6,2a, and the next lowest priority is Reporting Types 2,2b,2c,4, Reporting Types 1,1 a.
The present invention also provides an uplink control information transmission method, when a base station configures a PUCCH format3 for transmitting ACK/NACK information by a UE and a PDCCH for indicating a PUCCH format3 channel resource corresponding to ACK/NACK is not sent, or when the base station configures more than 1 carrier for the UE and configures the UE to transmit ACK/NACK information by using PUCCH format1 with channel selection, an implementation manner thereof is shown in fig. 3, and includes the following operations:
step 200, the base station determines the bit number of ACK/NACK information;
step 210, the base station determines the bit number of the periodic CSI;
and step 220, the base station receives the periodic CSI and the ACK/NACK information transmitted by the UE through the same uplink subframe on the channel resources corresponding to the periodic CSI of the UE according to the determined bit number of the ACK/NACK information and the determined bit number of the periodic CSI.
In addition, when a base station configures the UE to transmit ACK/NACK information by using PUCCH format3 and configures PUCCH format3 channel resources corresponding to ACK/NACK for the UE, the base station receives periodic CSI and ACK/NACK information transmitted by the UE on the PUCCH format3 channel resources corresponding to the ACK/NACK information; and if the periodic CSI and the ACK/NACK information transmitted by the UE are not received on the PUCCH format3 channel resource corresponding to the ACK/NACK information, the periodic CSI and the ACK/NACK information transmitted by the UE are received on the PUCCH format3 channel resource corresponding to the periodic CSI.
For a specific situation that the base station configures the UE to transmit ACK/NACK information by using PUCCH format3 and does not send a PDCCH indicating PUCCH format3 channel resources corresponding to ACK/NACK, refer to the description of the UE side method above, which is not described herein again.
The method provided by the invention can also comprise the following operations: and the base station configures channel resources corresponding to the periodic CSI for the UE through a high-level signaling or a PDCCH signaling or a carrier activation/deactivation signaling. Wherein the channel resource type corresponding to the periodic CSI includes at least one of: the channel resource comprises PUCCH format2/2a/2b channel resources, PUCCHHformt 3 channel resources corresponding to periodic CSI and channel resources based on a physical uplink shared channel PUSCH transmission structure corresponding to the periodic CSI.
In step 200 or step 310, a specific implementation manner of receiving, by the base station, the periodic CSI and the ACK/NACK information transmitted by the UE through the same uplink subframe on the channel resource corresponding to the periodic CSI of the UE may be: judging a channel resource type corresponding to the periodic CSI configured for the UE; if the channel resource corresponding to the periodic CSI at least comprises a PUCCH format2/2a/2b channel resource, the base station receives the periodic CSI and ACK/NACK information transmitted by the UE through the same uplink subframe by using the PUCCH format2/2a/2b on the PUCCH format2/2a/2b channel resource; if the channel resource corresponding to the periodic CSI is only the PCCH format3 channel resource corresponding to the periodic CSI, the base station receives the periodic CSI and ACK/NACK information transmitted by the UE through the same uplink subframe by using PUCCH format3 on the PUCCHFormat3 channel resource corresponding to the periodic CSI; and if the channel resource corresponding to the periodic CSI is only the channel resource corresponding to the periodic CSI and based on the PUSCH transmission structure, the base station receives the periodic CSI and the ACK/NACK information transmitted by the UE through the same uplink subframe by using a transmission scheme based on the PUSCH transmission structure on the channel resource corresponding to the periodic CSI and based on the PUSCH transmission structure.
In step 200 or step 310, the specific implementation manner that the base station receives the periodic CSI and the ACK/NACK information transmitted by the UE through the same uplink subframe on the channel resource corresponding to the periodic CSI of the UE may also be implemented by using a fixed PUCCH format, and specifically includes the following implementation manners:
the base station fixedly uses PUCCH format2/2a/2b, and when the channel resource corresponding to the periodic CSI comprises PUCCHFIfom 2/2a/2b channel resource, the periodic CSI and ACK/NACK information are received through the same uplink subframe on the PUCCH format2/2a/2b channel resource.
Or,
the base station fixedly uses PUCCH format3, and when the channel resource corresponding to the periodic CSI includes PUCCH format3 channel resource corresponding to the periodic CSI, the periodic CSI and ACK/NACK information are received through the same uplink subframe on the PUCCH format3 channel resource corresponding to the periodic CSI.
Or,
and the base station fixedly uses a transmission scheme based on a PUSCH transmission structure, and when the channel resources corresponding to the periodic CSI comprise the channel resources corresponding to the periodic CSI and based on the PUSCH transmission structure, the periodic CSI and the ACK/NACK information are received through the same uplink subframe on the channel resources corresponding to the periodic CSI and based on the PUSCH transmission structure.
The base station provided by the invention determines the bit number of the ACK/NACK information, and specifically comprises the following steps:
determining that the ACK/NACK information comprises 2-bit information which indicates the number of correctly received PDSCH and PDCCH for indicating downlink SPS resource release by the UE, and if the base station sends the PDSCH transmitted by multiple code words, correctly receiving the PDSCH transmitted by the multiple code words means correctly receiving each code word of the PDSCH transmitted by the multiple code words;
or,
determining that the ACK/NACK information comprises 2-bit information which indicates the number of the TBs or the code words correctly received by the UE;
or,
for an FDD system, when configuring 2 carriers to the UE and configuring that the UE transmits ACK/NACK information using PUCCH format1 bwitch channel selection, determining that the ACK/NACK information includes 2-bit information, where each bit information is 1-bit ACK/NACK feedback information of 1 carrier, and if the base station does not send a PDSCH or a PDCCH indicating SPS resource release on a carrier c, the 1-bit ACK/NACK feedback information of the carrier c is NACK, and if the base station sends a PDSCH of multi-codeword transmission on the carrier c, the 1-bit ACK/NACK feedback information of the carrier c refers to ACK/NACK feedback information obtained by spatially combining ACK/NACK feedback information of each codeword of the PDSCH of multi-codeword transmission;
or,
when the UE is configured to transmit ACK/NACK information by using PUCCH format3, if the base station only sends 1 PDSCH on PCC, and the PDSCH has a corresponding PDCCH or 1 PDCCH for indicating downlink SPS resource release, and for TDD uplink/downlink configuration, the DAI value of the downlink allocation index of the PDCCH is 1-6; or, the base station only sends 1 PDSCH on PCC and the PDSCH has no corresponding PDCCH, and does not send PDCCH indicating release of downlink SPS resources, and determines that the ACK/NACK information includes 1-bit information, where the 1-bit information is 1-bit ACK/NACK feedback information of the PDSCH sent by the base station or the PDCCH indicating release of downlink SPS resources, and if the PDSCH sent by the base station is a PDSCH transmitted by multiple codewords, the 1-bit information refers to 1-bit ACK/NACK feedback information obtained by spatially combining ACK/NACK feedback information of each codeword of the PDSCH transmitted by multiple codewords;
or,
when the UE is configured to transmit ACK/NACK information by using PUCCH format3, if the base station only sends 1 PDSCH on PCC, and the PDSCH has a corresponding PDCCH or 1 PDCCH for indicating downlink SPS resource release, and for TDD uplink/downlink configuration, the DAI value of the downlink allocation index of the PDCCH is 1-6; or, the base station sends only 1 PDSCH on PCC and the PDSCH has no corresponding PDCCH, and does not send a PDCCH indicating release of downlink SPS resources, and determines that the ACK/NACK information includes 2-bit information, where 1-bit information is 1-bit ACK/NACK feedback information of the PDSCH sent by the base station or the PDCCH indicating release of downlink SPS resources, and if the PDSCH sent by the base station is a PDSCH transmitted by multiple codewords, the 1-bit information refers to 1-bit ACK/NACK feedback information obtained by spatially combining ACK/NACK feedback information of each codeword of the PDSCH transmitted by multiple codewords, and the other 1-bit information is NACK feedback information;
or,
when the UE is configured to transmit ACK/NACK information using PUCCH format3, if the base station transmits only 1 PDSCH on PCC and the PDSCH does not have a corresponding PDCCH, and another 1 PDSCH with a corresponding PDCCH or 1 PDCCH indicating a release of downlink SPS resources, and for TDD uplink/downlink configuration 1-6, the DAI value of the PDCCH is 1, the ACK/NACK information is determined to include 2-bit information, wherein, the 1 bit information is the 1 bit ACK/NACK feedback information of the PDSCH without the corresponding PDCCH sent by the base station, the other 1 bit information is the 1 bit ACK/NACK feedback information of the PDSCH with the corresponding PDDCH or the PDCCH for indicating the downlink SPS resource release received by the UE, if the PDSCH with the corresponding PDCCH transmitted by the base station is a PDSCH of a multi-codeword transmission, the 1-bit information refers to 1-bit ACK/NACK feedback information obtained by spatially combining ACK/NACK feedback information of each code word of the PDSCH transmitted by the multiple code words.
When the base station receives the periodic CSI and the ACK/NACK information through the same uplink subframe on a channel resource based on a PUSCH transmission structure corresponding to the periodic CSI, the determining, by the base station, a bit number of the ACK/NACK information specifically includes:
determining the ACK/NACK information asBits, where N is the number of carriers configured to the UE, McThe number of subframes needing ACK/NACK feedback on the same uplink subframe for each carrier, M on each carriercEach subframe n in the sub-frames corresponds to CcBit ACK/NACK feedback information, if the base station does not send PDSCH or finger in sub-frame n on carrier cPDCCH for indicating SPS resource release, and C corresponding to subframe n on the carrier CcThe bit ACK/NACK feedback information is NACK, when the transmission mode of the carrier wave C is single code word or the transmission mode is multi-code word but the multi-code word ACK/NACK feedback information is spatially combined, CcNot 1, otherwise, Cc=2;
Or,
if the UE is configured with more than 1 carrier and the UE is configured to transmit ACK/NACK information by using PUCCH format1b with channel selection: for an FDD system or a TDD system and M is 1, determining the ACK/NACK information asBits, where each subframe n of the M subframes on each carrier corresponds to CcBit ACK/NACK feedback information, if the sub-frame n of the base station on the carrier C does not send PDSCH or PDCCH indicating SPS resource release, C corresponding to the sub-frame n on the carrier CcThe bit ACK/NACK feedback information is NACK, when the transmission mode of the carrier C is a single code word, CcNot 1, otherwise, Cc2; for a TDD system and M is 2, determining that the ACK/NACK information is N × M bits, where each subframe N in M subframes on each carrier corresponds to 1-bit ACK/NACK feedback information, if the base station does not send a PDSCH or a PDCCH indicating SPS resource release on a subframe N on a carrier c, the 1-bit ACK/NACK feedback information corresponding to the subframe N on the carrier c is NACK, and for the subframe N including multi-codeword transmission, the ACK/NACK feedback information is 1-bit feedback information obtained by spatially combining the multi-codeword ACK/NACK feedback information in the subframe N; for a TDD system and M is greater than 2, determining that the ACK/NACK information specifically comprises 2-bit information corresponding to each carrier, indicating that the first subframe with data transmission on the carrier starts, and the number of subframes continuously and correctly received by the UE is greater than 2; wherein, N is the number of carriers configured to the UE, and M is the number of subframes performing ACK/NACK feedback on the same uplink subframe.
The determining, by the base station, the bit number of the periodic CSI specifically includes:
determining that the bit number of the periodic CSI is the bit number of the periodic CSI of 1 carrier, and if the periodic CSI of a plurality of carriers needs to be transmitted in the same uplink subframe, the periodic CSI of 1 carrier is the periodic CSI of 1 carrier selected according to a predetermined sequence;
or,
determining the bit number of the periodic CSI to be the total bit number of the periodic CSI of all or part of carriers which are selected according to a preset sequence and need to transmit the periodic CSI in the same uplink subframe, wherein the total bit number of the selected periodic CSI does not exceed a CSI bit threshold;
or,
and determining the bit number of the periodic CSI as the total bit number of the periodic CSI of all carriers needing to transmit the periodic CSI in the same uplink subframe.
When the base station receives the periodic CSI and the ACK/NACK information through the same uplink subframe on the PUCCH format2/2a/2b channel resources, the CSI bit threshold value is a value not exceeding the maximum transmission bit number of the PUCCH format2/2 a/b; or,
when the base station receives the periodic CSI and the ACK/NACK information through the same uplink subframe on the PUCCH format3 resource corresponding to the periodic CSI, the CSI bit threshold value is a value that does not exceed the maximum transmission bit number of the PUCCH format3 minus the bit number occupied by the ACK/NACK information, or a value that does not exceed the maximum transmission bit number of the PUCCH format3 minus the bit number occupied by the ACK/NACK information and scheduling request SR information.
The predetermined sequence is: the reporting type priority of the periodic CSI is in a sequence from high to low;
for the reporting type priorities of the same periodic CSI, the predetermined sequence is further the sequence of carrier numbers from small to large.
The present invention further provides a UE, when the UE is configured to transmit ACK/NACK information using PUCCH format3 and does not receive a PDCCH indicating PUCCH format3 channel resources corresponding to ACK/NACK, or when the UE is configured with more than 1 carrier and is configured to transmit ACK/NACK information using PUCCH format1b with channel selection, an implementation structure of the UE is shown in fig. 4, and includes:
an ACK/NACK information generating module 1001 configured to generate ACK/NACK information;
a CSI generation module 1002, configured to generate periodic CSI;
an uplink control information transmission module 1003, configured to transmit the periodic CSI and the ACK/NACK information through the same uplink subframe on a channel resource corresponding to the periodic CSI.
For a specific case that the UE is configured to transmit ACK/NACK information by using PUCCH format3 and does not receive a PDCCH indicating PUCCH format3 channel resources corresponding to ACK/NACK, refer to the description of the UE side method, which is not described herein again.
The UE provided by the present invention may further include a channel resource obtaining module, configured to obtain, according to a high-level signaling or a PDCCH signaling or a carrier activation/deactivation signaling, a channel resource corresponding to the periodic CSI, where the channel resource type corresponding to the periodic CSI includes at least one of the following: the channel resource comprises PUCCH format2/2a/2b channel resources, PUCCH format3 channel resources corresponding to periodic CSI and channel resources based on a Physical Uplink Shared Channel (PUSCH) transmission structure corresponding to the periodic CSI.
The uplink control information transmission module 1003 may specifically include:
a channel resource type judgment submodule, configured to judge a channel resource type corresponding to the obtained periodic CSI;
an uplink control information transmission sub-module, configured to, if the channel resource type determination sub-module determines that the channel resource corresponding to the periodic CSI at least includes a PUCCH format2/2a/2b channel resource, transmit the periodic CSI and the ACK/NACK information through the same uplink subframe using a PUCCH format2/2a/2b on the PUCCH format2/2a/2b channel resource; if the channel resource type judgment sub-module judges that the channel resource corresponding to the periodic CSI is only the PUCCH format3 channel resource corresponding to the periodic CSI, the PUCCH format3 is used for transmitting the periodic CSI and the ACK/NACK information through the same uplink subframe on the PUCCH format3 channel resource corresponding to the periodic CSI; and if the channel resource type judgment submodule judges that the channel resource corresponding to the periodic CSI is only the channel resource corresponding to the periodic CSI and based on the PUSCH transmission structure, the periodic CSI and the ACK/NACK information are transmitted through the same uplink subframe by using a transmission scheme based on the PUSCH transmission structure on the channel resource corresponding to the periodic CSI and based on the PUSCH transmission structure.
The uplink control information transmission module 1003 is specifically configured to:
the PUCCH format2/2a/2b is fixedly used, and when the channel resource corresponding to the periodic CSI comprises PUCCHFIfom 2/2a/2b channel resource, the periodic CSI and the ACK/NACK information are transmitted through the same uplink subframe on the PUCCH format2/2a/2b channel resource;
or,
the PUCCH format3 is fixedly used, and when the channel resource corresponding to the periodic CSI comprises a PUCCH format3 channel resource corresponding to the periodic CSI, the periodic CSI and the ACK/NACK information are transmitted through the same uplink subframe on the PUCCH format3 channel resource corresponding to the periodic CSI;
or,
and fixedly using a transmission scheme based on a PUSCH transmission structure, and when the channel resources corresponding to the periodic CSI comprise the channel resources corresponding to the periodic CSI and based on the PUSCH transmission structure, transmitting the periodic CSI and the ACK/NACK information through the same uplink subframe on the channel resources corresponding to the periodic CSI and based on the PUSCH transmission structure.
Further, the ACK/NACK information generating module 1001 is specifically configured to:
generating 2-bit information which represents the correctly received PDSCH and the number of PDCCHs for indicating the downlink SPS resource release, wherein if the UE receives the PDSCH transmitted by multiple code words, the correctly received PDSCH transmitted by the multiple code words means that each code word of the PDSCH transmitted by the multiple code words is correctly received;
or,
generating 2-bit information which represents the number of correctly received TBs or code words;
or,
for an FDD system, when the UE is configured with 2 carriers and transmits ACK/NACK information using PUCCH format1b with channel selection, generating 2-bit information, where each bit information is 1-bit ACK/NACK feedback information of 1 carrier, if the UE does not receive a PDSCH or a PDCCH indicating SPS resource release on a carrier c, the 1-bit ACK/NACK feedback information of the carrier c is NACK, and if the UE receives a PDSCH transmitted by multiple codewords on the carrier c, the 1-bit ACK/NACK feedback information of the carrier c refers to ACK/NACK feedback information obtained by spatially combining ACK/NACK feedback information of each codeword of the PDSCH transmitted by the multiple codewords;
or,
when the UE is configured to transmit ACK/NACK information by using PUCCH format3, if the UE only receives 1 PDSCH on PCC, and the PDSCH has a corresponding PDCCH or 1 PDCCH for indicating downlink SPS resource release, and for TDD uplink/downlink configuration, the DAI value of the downlink allocation index of the PDCCH is 1-6; or, the UE receives only 1 PDSCH on the PCC without corresponding PDCCH, and does not receive PDCCH indicating release of the downlink SPS resources, and generates 1-bit information, where the 1-bit information is 1-bit ACK/NACK feedback information of the received PDSCH or the PDCCH indicating release of the downlink SPS resources, and if the received PDSCH is a PDSCH transmitted by multiple codewords, the 1-bit information is 1-bit ACK/NACK feedback information obtained by spatially combining ACK/NACK feedback information of each codeword of the PDSCH transmitted by multiple codewords;
or,
when the UE is configured to transmit ACK/NACK information by using PUCCH format3, if the UE only receives 1 PDSCH on PCC, and the PDSCH has a corresponding PDCCH or 1 PDCCH for indicating downlink SPS resource release, and for TDD uplink/downlink configuration, the DAI value of the downlink allocation index of the PDCCH is 1-6; or, the UE receives only 1 PDSCH on the PCC without corresponding PDCCH, and does not receive PDCCH indicating release of the downlink SPS resources, and generates 2-bit information, where 1-bit information is 1-bit ACK/NACK feedback information of the received PDSCH or the PDCCH indicating release of the downlink SPS resources, and if the received PDSCH is a PDSCH transmitted by multiple codewords, the 1-bit information refers to 1-bit ACK/NACK feedback information obtained by spatially combining ACK/NACK feedback information of each codeword of the PDSCH transmitted by the multiple codewords, and the other 1-bit information is NACK feedback information;
or,
when the UE is configured to transmit ACK/NACK information using PUCCH format3, if the UE receives only 1 PDSCH on the PCC and the PDSCH does not have a corresponding PDCCH, and another 1 PDSCH with a corresponding PDCCH or 1 PDCCH indicating a release of downlink SPS resources, and for TDD uplink/downlink configuration 1-6, the DAI value of the PDCCH is 1, 2 bits of information is generated, wherein the 1-bit information is 1-bit ACK/NACK feedback information of the received PDSCH without the corresponding PDCCH, in addition, the 1-bit information is 1-bit ACK/NACK feedback information of a received PDSCH corresponding to the PDDCH or a PDCCH for indicating the release of the downlink SPS resources, if the received PDSCH with corresponding PDCCH is a PDSCH of a multi-codeword transmission, the 1-bit information refers to 1-bit ACK/NACK feedback information obtained by spatially combining ACK/NACK feedback information of each code word of the PDSCH transmitted by the multiple code words.
When the UE transmits the periodic CSI and the ACK/NACK information through the same uplink subframe on the channel resource based on the PUSCH transmission structure corresponding to the periodic CSI, the ACK/NACK information generating module 1001 is specifically configured to:
according to the number N of carriers configured by the UE, the transmission mode of each carrier and the number M of subframes needing ACK/NACK feedback on the same uplink subframe by each carriercGenerate, generateBit ACK/NACK feedback information, M on each carriercEach subframe n in the sub-frames corresponds to CcBit ACK/NACK feedback information, if the sub-frame n of the UE on the carrier C does not receive the PDSCH or the PDCCH for indicating the SPS resource release, C corresponding to the downlink sub-frame n on the carrier CcThe bit ACK/NACK feedback information is NACK, when the transmission mode of the carrier wave C is single code word or the transmission mode is multiple code words but the ACK/NACK feedback information of each code word is spatially combined, CcNot 1, otherwise, Cc=2;
Or,
if the UE is configured with more than 1 carrier and configured to transmit ACK/NACK information using PUCCH format1b with channel selection: for an FDD system or a TDD system and M is 1, generating according to the number N of carriers configured by the UE and the transmission mode of each carrierBit ACK/NACK feedback information, each subframe n in M subframes on each carrier corresponds to CcBit ACK/NACK feedback information, if the UE does not receive PDSCH or PDCCH indicating SPS resource release in the subframe n of the carrier C, the C corresponding to the subframe n of the carrier CcThe bit ACK/NACK feedback information is NACK, when the transmission mode of the carrier C is a single code word, CcNot 1, otherwise, Cc2; for a TDD system and M2, generating N M bit ACK/NACK feedback information, wherein each subframe N in M subframes on each carrier corresponds to 1 bit ACK/NACK feedback information, if the UE does not receive a PDSCH or a PDCCH (physical Downlink control channel) indicating SPS resource release in the subframe N on the carrier c, the 1 bit ACK/NACK feedback information corresponding to the subframe N on the carrier c is NACK, and for a packetThe method comprises the steps that subframe n containing multi-code word transmission is provided, and ACK/NACK feedback information of the subframe n is 1-bit feedback information obtained by carrying out spatial combination on the multi-code word ACK/NACK feedback information in the subframe n; for a TDD system and M is more than 2, generating 2-bit information for each carrier, and indicating the number of continuously and correctly received subframes starting from the first subframe with data transmission on the carrier; and M is the number of subframes for performing ACK/NACK feedback on the same uplink subframe.
CSI generating module 1002 is specifically configured to:
generating periodic CSI of 1 carrier, wherein if the periodic CSI of a plurality of carriers needs to be transmitted in the same uplink subframe, the periodic CSI of 1 carrier is the periodic CSI of 1 carrier selected according to a predetermined sequence;
or,
generating periodic CSI of all or part of carriers of a plurality of carriers which need to transmit periodic CSI in the same uplink subframe and are selected according to a preset sequence, wherein the total bit number of the selected periodic CSI does not exceed a CSI bit threshold;
or,
and generating periodic CSI of all carriers needing to transmit the periodic CSI in the same uplink subframe.
When the UE transmits the periodic CSI and the ACK/NACK information through the same uplink subframe on the PUCCH format2/2a/2b channel resources, the CSI bit threshold value is a value not exceeding the maximum transmission bit number of the PUCCH format2/2 a/b; or,
when the UE transmits the periodic CSI and the ACK/NACK information through the same uplink subframe on the PUCCH format3 resource corresponding to the periodic CSI, the CSI bit threshold value is a value which is not more than the maximum transmission bit number of the PUCCH format3 minus the bit number occupied by the ACK/NACK information, or is a value which is not more than the maximum transmission bit number of the PUCCH format3 minus the bit number occupied by the ACK/NACK information and scheduling request SR information.
The predetermined sequence is: the reporting type priority of the periodic CSI is in a sequence from high to low;
for the reporting type priorities of the same periodic CSI, the predetermined sequence is further the sequence of carrier numbers from small to large.
The present invention also provides a base station, whose implementation structure is shown in fig. 5, where when the base station configures UE to transmit ACK/NACK information using PUCCHformat3 and does not send a PDCCH for indicating PUCCH format3 channel resources corresponding to ACK/NACK, or when the base station configures the UE with more than 1 carrier and configures the UE to transmit ACK/NACK information using PUCCHformat 1b with channel selection, the specific implementation structure of the base station includes:
an ACK/NACK bit number determining module 2001, configured to determine a bit number of ACK/NACK information;
a CSI bit number determining module 2002, configured to determine a bit number of periodic CSI;
an uplink control information receiving module 2003, configured to receive, on the channel resource corresponding to the periodic CSI of the UE, the periodic CSI and ACK/NACK information transmitted by the UE through the same uplink subframe.
For a specific situation that the base station configures the UE to transmit ACK/NACK information by using PUCCH format3 and does not send a PDCCH indicating PUCCH format3 channel resources corresponding to ACK/NACK, refer to the description of the UE side method above, which is not described herein again.
The base station provided by the invention can also comprise a channel resource configuration module, which is used for configuring the channel resources corresponding to the periodic CSI for the UE through a high-level signaling or a PDCCH signaling or a carrier activation/deactivation signaling. The channel resource type corresponding to the periodic CSI includes at least one of: the channel resource comprises PUCCH format2/2a/2b channel resources, PUCCHHformt 3 channel resources corresponding to periodic CSI and channel resources based on a physical uplink shared channel PUSCH transmission structure corresponding to the periodic CSI.
In the base station provided in the present invention, the uplink control information receiving module 2003 may specifically include:
the channel resource type judgment submodule is used for judging the channel resource type corresponding to the UE configuration period CSI; a first uplink control information receiving sub-module, configured to receive, on the PUCCH format2/2a/2b channel resource, periodic CSI and ACK/NACK information transmitted by the UE through the same uplink subframe by using PUCCH format2/2a/2b if the channel resource type determination sub-module determines that the channel resource corresponding to the periodic CSI at least includes PUCCH format2/2a/2b channel resource; if the channel resource type judgment submodule judges that the channel resource corresponding to the periodic CSI is only the PCCH format3 channel resource corresponding to the periodic CSI, the PUCCH format3 is used for receiving the periodic CSI and ACK/NACK information transmitted by the UE through the same uplink subframe on the PUCCH format3 channel resource corresponding to the periodic CSI; and if the channel resource type judgment submodule judges that the channel resource corresponding to the periodic CSI is only the channel resource corresponding to the periodic CSI and based on the PUSCH transmission structure, on the channel resource corresponding to the periodic CSI and based on the PUSCH transmission structure, the periodic CSI and ACK/NACK information transmitted by the UE is received through the same uplink subframe by using a transmission scheme based on the PUSCH transmission structure.
The implementation of each functional module at the base station side may refer to the description of the base station side method, and the description of the ACK/NACK information and the periodic CSI may refer to the description of the UE side method, which is not described herein again.
The uplink control information receiving module 2003 is specifically configured to fixedly use PUCCH format2/2a/2b, and when the channel resource corresponding to the periodic CSI includes PUCCH format2/2a/2b channel resource, receive the periodic CSI and the ACK/NACK information through the same uplink subframe on the PUCCH format2/2a/2b channel resource; or, the PUCCH format3 is fixedly used, and when the channel resource corresponding to the periodic CSI includes a PUCCH format3 channel resource corresponding to the periodic CSI, the periodic CSI and the ACK/NACK information are received through the same uplink subframe on the PUCCH format3 channel resource corresponding to the periodic CSI; or, a transmission scheme based on a PUSCH transmission structure is fixedly used, and when the channel resource corresponding to the periodic CSI includes a channel resource based on a PUSCH transmission structure corresponding to the periodic CSI, the periodic CSI and the ACK/NACK information are received through the same uplink subframe on the channel resource based on the PUSCH transmission structure corresponding to the periodic CSI.
The ACK/NACK bit number determining module 2001 is specifically configured to:
determining that the ACK/NACK information comprises 2-bit information which indicates the number of correctly received PDSCH and PDCCH for indicating downlink SPS resource release by the UE, and if the base station sends the PDSCH transmitted by multiple code words, correctly receiving the PDSCH transmitted by the multiple code words means correctly receiving each code word of the PDSCH transmitted by the multiple code words;
or,
determining that the ACK/NACK information comprises 2-bit information which indicates the number of the TBs or the code words correctly received by the UE;
or,
for an FDD system, when configuring 2 carriers to the UE and configuring that the UE transmits ACK/NACK information using PUCCH format1 bwitch channel selection, determining that the ACK/NACK information includes 2-bit information, where each bit information is 1-bit ACK/NACK feedback information of 1 carrier, and if the base station does not send a PDSCH or a PDCCH indicating SPS resource release on a carrier c, the 1-bit ACK/NACK feedback information of the carrier c is NACK, and if the base station sends a PDSCH of multi-codeword transmission on the carrier c, the 1-bit ACK/NACK feedback information of the carrier c refers to ACK/NACK feedback information obtained by spatially combining ACK/NACK feedback information of each codeword of the PDSCH of multi-codeword transmission;
or,
when the UE is configured to transmit ACK/NACK information by using PUCCH format3, if the base station only sends 1 PDSCH on PCC, and the PDSCH has a corresponding PDCCH or 1 PDCCH for indicating downlink SPS resource release, and for TDD uplink/downlink configuration, the DAI value of the downlink allocation index of the PDCCH is 1-6; or, the base station only sends 1 PDSCH on PCC without corresponding PDCCH, and does not send PDCCH indicating release of downlink SPS resources, and determines that the ACK/NACK information includes 1-bit information, where the 1-bit information is 1-bit ACK/NACK feedback information of the PDSCH sent by the base station or the PDCCH indicating release of downlink SPS resources, and if the PDSCH sent by the base station is a PDSCH transmitted by multiple codewords, the 1-bit information refers to 1-bit ACK/NACK feedback information obtained by spatially combining ACK/NACK feedback information of each codeword of the PDSCH transmitted by multiple codewords;
or,
when the UE is configured to transmit ACK/NACK information by using PUCCH format3, if the base station only sends 1 PDSCH on PCC, and the PDSCH has a corresponding PDCCH or 1 PDCCH for indicating downlink SPS resource release, and for TDD uplink/downlink configuration, the DAI value of the downlink allocation index of the PDCCH is 1-6; or, the base station sends only 1 PDSCH on PCC without corresponding PDCCH, and does not send PDCCH indicating release of downlink SPS resources, and determines that the ACK/NACK information includes 2-bit information, where 1-bit information is 1-bit ACK/NACK feedback information of the PDSCH sent by the base station or the PDCCH indicating release of downlink SPS resources, if the PDSCH sent by the base station is a PDSCH of multi-codeword transmission, the 1-bit information refers to 1-bit ACK/NACK feedback information after spatial combination is performed on each codeword ACK/NACK feedback information of the PDSCH of multi-codeword transmission, and the other 1-bit information is NACK feedback information;
or,
when the UE is configured to transmit ACK/NACK information using PUCCH format3, if the base station transmits only 1 PDSCH on PCC and the PDSCH does not have a corresponding PDCCH, and another 1 PDSCH with a corresponding PDCCH or 1 PDCCH indicating a release of downlink SPS resources, and for TDD uplink/downlink configuration 1-6, the DAI value of the PDCCH is 1, the ACK/NACK information is determined to include 2-bit information, wherein the 1-bit information is 1-bit ACK/NACK feedback information of a PDSCH without a corresponding PDCCH transmitted by the base station, in addition, the 1-bit information is 1-bit ACK/NACK feedback information which is sent by the base station and is provided with a PDSCH corresponding to the PDDCH or a PDCCH for indicating the release of the downlink SPS resources, if the PDSCH with the corresponding PDCCH transmitted by the base station is a PDSCH of a multi-codeword transmission, the 1-bit information refers to 1-bit ACK/NACK feedback information obtained by spatially combining ACK/NACK feedback information of each code word of the PDSCH transmitted by the multiple code words.
When the periodic CSI and the ACK/NACK information are received through the same uplink subframe on the channel resource based on the PUSCH transmission structure corresponding to the periodic CSI, the ACK/NACK bit number determining module 2001 is specifically configured to:
determining the ACK/NACK information asBits, where N is the number of carriers configured to the UE, McThe number of downlink sub-frames on which ACK/NACK feedback needs to be carried out on the same uplink sub-frame for each carrier, and M on each carriercEach subframe n in the sub-frames corresponds to CcBit ACK/NACK feedback information, if the sub-frame n of the base station on the carrier C does not send PDSCH or PDCCH indicating SPS resource release, C corresponding to the sub-frame n on the carrier CcThe bit ACK/NACK feedback information is NACK, when the transmission mode of the carrier wave C is single code word or the transmission mode is multi-code word but the multi-code word ACK/NACK feedback information is spatially combined, CcNot 1, otherwise, Cc=2;
Or,
if the UE is configured with more than 1 carrier and the UE is configured to transmit ACK/NACK information by using PUCCH format1b with channel selection: for an FDD system or a TDD system and M is 1, determining the ACK/NACK information asBits, where each subframe n of the M subframes on each carrier corresponds to CcBit ACK/NACK feedback information, if the sub-frame n of the base station on the carrier C does not send PDSCH or PDCCH indicating SPS resource release, C corresponding to the sub-frame n on the carrier CcThe bit ACK/NACK feedback information is NACK, when the transmission mode of the carrier C is a single code word, CcNot 1, otherwise, Cc2; for a TDD system and M is 2, determining that the ACK/NACK information is N × M bits, where each subframe N in M subframes on each carrier corresponds to 1-bit ACK/NACK feedback information, if the base station does not send a PDSCH or a PDCCH indicating SPS resource release on a subframe N on a carrier c, the 1-bit ACK/NACK feedback information corresponding to the subframe N on the carrier c is NACK, and for the subframe N including multi-codeword transmission, the ACK/NACK feedback information is 1-bit feedback information obtained by spatially combining the multi-codeword ACK/NACK feedback information in the subframe N; for a TDD system and M is greater than 2, the ACK/NACK information specifically includes 2-bit information corresponding to each carrier, indicating the number of subframes that the UE continuously and correctly receives starting from a first subframe on the carrier where data is transmitted; wherein, N is the number of carriers configured to the UE, and M is the number of subframes performing ACK/NACK feedback on the same uplink subframe.
CSI bit number determining module 2002 is specifically configured to:
determining the bit number of CSI to be the bit number of periodic CSI of 1 carrier, wherein if the periodic CSI of a plurality of carriers needs to be transmitted in the same uplink subframe, the periodic CSI of 1 carrier is the periodic CSI of 1 carrier selected according to a predetermined sequence;
or,
determining the bit number of the CSI to be the total bit number of the periodic CSI of all or part of carriers which need to transmit the periodic CSI in the same uplink subframe according to a preset sequence, wherein the total bit number of the selected periodic CSI does not exceed a CSI bit threshold;
or,
and determining the bit number of the CSI as the total bit number of the periodic CSI of all carriers needing to transmit the periodic CSI in the same uplink subframe.
When the periodic CSI and the ACK/NACK information are received through the same uplink subframe on the PUCCH format2/2a/2b channel resource, the CSI bit threshold value is a value not exceeding the maximum transmission bit number of the PUCCH format2/2 a/b; or,
when the periodic CSI and the ACK/NACK information are received through the same uplink subframe on the PUCCH format3 resource corresponding to the periodic CSI, the CSI bit threshold value is a value that does not exceed the maximum transmission bit number of the PUCCH format3 minus the bit number occupied by the ACK/NACK information, or a value that does not exceed the maximum transmission bit number of the PUCCH format3 minus the bit number occupied by the ACK/NACK information and the scheduling request SR information.
The predetermined sequence is: the reporting type priority of the periodic CSI is in a sequence from high to low;
for the reporting type priorities of the same periodic CSI, the predetermined sequence is further the sequence of carrier numbers from small to large.
It should be noted that the method, the UE and the base station provided by the present invention may be applied to a situation where only 1 downlink carrier is configured for the UE, and may also be applied to a situation where multiple downlink carriers are configured for the UE.
When the UE is configured to transmit the ACK/NACK information by using PUCCH format3 and does not obtain PUCCH format3 channel resources corresponding to the ACK/NACK, or when the UE is configured with more than 1 carrier and is configured to transmit the ACK/NACK information by using PUCCH format1b with channel selection, the invention provides a method for transmitting the ACK/NACK information and periodic CSI on the channel resources corresponding to the CSI by using the same uplink subframe, so that the periodic CSI is prevented from being discarded, and the accuracy of downlink scheduling of the base station is improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.