Abstract
A method for encoding acknowledgement information includes: receiving a component carrier where the component carrier includes at least one downlink subframe; generating acknowledgement information bits corresponding to the component carrier according to the received component carrier; dividing the acknowledgement information bits into two groups so that each group includes at least one acknowledgement information bit where the at least one acknowledgement information bit corresponds to physical downlink shared channel PDSCH transmission and/or downlink control information DCI where the DCI is used for indicating downlink semi-persistent scheduling SPS release; and encoding the two divided groups of acknowledgement information bits to obtain two groups of codeword bits respectively and generating from the two groups of codeword bits obtained by the encoding total codeword bits to be transmitted. In addition a method for receiving acknowledgement information an apparatus for encoding acknowledgement information and an apparatus for processing acknowledgement information are also included.
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CN102594493A | 4G | 05/08/2012 | ISLD-201208-003 | HUAWEI |
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Technologies
Feedback
Signal Processing
Product
Base Station (eNB/gNB)
Use Cases
Services
Claim
1. A method for encoding acknowledgement information, comprising:
receiving at least one component carrier, wherein each component carrier in the at least one component carrier comprises at least one downlink subframe;
generating acknowledgement information bits corresponding to the each component carrier according to the each component carrier;
ordering the acknowledgement information bits corresponding to the each component carrier according to a maximum value DAI_max of a downlink assignment index (DAI) field in downlink control information (DCI) which is received on the each component carrier and used for controlling physical downlink shared channel (PDSCH) transmission and/or indicating downlink semi-persistent scheduling (SPS) release and the number N_sps of physical downlink shared channels (PDSCHs) scheduled by semi-persistent scheduling (SPS) in the at least one downlink subframe;
alternately assigning the ordered acknowledgement information bits corresponding to the each component carrier to two groups, and obtaining two groups of acknowledgement information bits; and
encoding the two groups of acknowledgement information bits to obtain two groups of codeword bits, respectively, and generating, from the two groups of codeword bits obtained by the encoding, total codeword bits to be transmitted;
wherein the generating acknowledgement information bits corresponding to the each component carrier comprises:
generating acknowledgement information bits corresponding to a first codeword and a second codeword transmitted on each downlink subframe in the each component carrier; and
mapping the acknowledgement information bits corresponding to the first codeword and the second codeword transmitted on each downlink subframe to two acknowledgement information bits d(0) and d(1), respectively,
so that when only one codeword is transmitted on at least one first downlink subframe in the each component carrier, acknowledgement information bits corresponding to the one codeword transmitted on the at least one first downlink subframe are mapped to d(0);
and/or so that when only one codeword is transmitted on at least one second downlink subframe in the each component carrier, acknowledgement information bits corresponding to the one codeword transmitted on the at least one second downlink subframe are mapped to d(1).
2. The method according to claim 1, wherein the ordering the acknowledgement information bits corresponding to the each component carrier according to the DAI_max and the N_sps comprises:
placing acknowledgement information bits corresponding to N_sps PDSCHs scheduled by semi-persistent scheduling into first N_sps�a bit positions;
placing acknowledgement information bits corresponding to downlink subframes corresponding to DCI of DAI=1 to DAI=DAI_max into bit positions N_sps�a+1 to N_sps�a+DAI_max�a; and
setting the remaining (D�a?(DAI_max+N_sps)�a) acknowledgement information bits to �0�;
or
placing acknowledgement information bits corresponding to N_sps PDSCHs scheduled by semi-persistent scheduling into last N_sps�a bit positions;
placing acknowledgement information bits corresponding to downlink subframes corresponding to DAI=1 to DAI=DAI_max DCIs into first DAI_max�a bit positions; and
setting the remaining (D�a?(DAI_max+N_sps)�a) acknowledgement information bits to �0�;
wherein the a is a bit number of acknowledgement information bits corresponding to each of the downlink subframes and the D is a number of downlink subframes for which the acknowledgement information bits need to be generated.
3. The method according to claim 1, wherein the alternately assigning is based on granularity of a bit.
4. The method according to claim 1, wherein the alternately assigning the ordered acknowledgement information bits corresponding to the each component carrier to two groups comprises: in ascending or descending order of carrier numbers, assigning the ordered acknowledgement information bits corresponding to the each component carrier in the at least one component carrier to the two groups, respectively.
5. The method according to claim 2, wherein the alternately assigning the ordered acknowledgement information bits corresponding to the each component carrier to two groups comprises: in ascending or descending order of carrier numbers, assigning the ordered acknowledgement information bits corresponding to the each component carrier in the at least one component carrier to the two groups, respectively.
6. The method according to claim 3, wherein the alternately assigning the ordered acknowledgement information bits corresponding to the each component carrier to two groups comprises: in ascending or descending order of carrier numbers, assigning the ordered acknowledgement information bits corresponding to the each component carrier in the at least one component carrier to the two groups, respectively.
7. An apparatus for encoding acknowledgement information, comprising:
an acknowledgement information generating module, configured to receive at least one component carrier, wherein each component carrier in the at least one component carrier comprises at least one downlink subframe, and generate acknowledgement information bits corresponding to the each component carrier according to the each component carrier;
a grouping module, configured to order the acknowledgement information bits corresponding to the each component carrier according to a maximum value DAI_max of a downlink assignment index (DAI) field in downlink control information (DCI) which is received on the each component carrier and used for controlling physical downlink shared channel (PDSCH) transmission and/or indicating downlink semi-persistent scheduling (SPS) release and the number N_sps of physical downlink shared channels (PDSCHs) scheduled by semi-persistent scheduling (SPS) in the at least one downlink subframe, alternately assign the ordered acknowledgement information bits corresponding to the each component carrier to two groups, and obtain two groups of acknowledgement information bits; and
an encoding module, configured to encode the two groups of acknowledgement information bits to obtain two groups of codeword bits, respectively, and generate, from the two groups of codeword bits obtained by the encoding, total codeword bits to be transmitted;
wherein the acknowledgement information generating module is configured to generate acknowledgement information bits corresponding to a first codeword and a second codeword transmitted on each downlink subframe in the each component carrier, and map the acknowledgement information bits corresponding to the first codeword and the second codeword transmitted on each downlink subframe to two acknowledgement information bits d(0) and d(1), respectively, so that when only one codeword is transmitted on at least one first downlink subframe in the each component carrier, acknowledgement information bits corresponding to the one codeword transmitted on the at least one first downlink subframe are mapped to d(0), and/or so that when only one codeword is transmitted on at least one second downlink subframe in each of the component carriers, acknowledgement information bits corresponding to the one codeword transmitted on the at least one second downlink subframe are mapped to d(1).
8. The apparatus according to claim 7, wherein:
the apparatus is configured to place acknowledgement information bits corresponding to N_sps PDSCHs scheduled by semi-persistent scheduling into first N_sps�a bit positions;
place acknowledgement information bits corresponding to downlink subframes corresponding to DCI of DAI=1 to DAI=DAI_max into bit positions N_sps�a+1 to N_sps�a+DAI_max�a; and
set the remaining (D�a?(DAI_max+N_sps)�a) acknowledgement information bits to �0�;
or
the ordering unit is configured to place acknowledgement information bits corresponding to N_sps PDSCHs scheduled by semi-persistent scheduling into last N_sps�a bit positions;
place acknowledgement information bits corresponding to downlink subframes corresponding to DAI=1 to DAI=DAI_max DCIs into first DAI_max�a bit positions; and
set the remaining (D�a?(DAI_max+N_sps)�a) acknowledgement information bits to �0�;
wherein the a is the bit number of acknowledgement information bits corresponding to the each downlink subframe and the D is the number of downlink subframes for which the acknowledgement information bits need to be generated.
9. A user equipment, comprising:
a receiver, configured to receive at least one component carrier, wherein each component carrier in the at least one component carrier comprises at least one downlink subframe;
a processor configured to generate acknowledgement information bits corresponding to the each component carrier according to the each component carrier, and order the acknowledgement information bits corresponding to the each component carrier according to a maximum value DAI_max of a downlink assignment index (DAI) field in downlink control information (DCI) which is received on the each component carrier and used for controlling physical downlink shared channel (PDSCH) transmission and/or indicating downlink semi-persistent scheduling (SPS) release and the number N_sps of physical downlink shared channels (PDSCHs) scheduled by semi-persistent scheduling (SPS) in the at least one downlink subframe, alternately assign the ordered acknowledgement information bits corresponding to the each component carrier to two groups, and obtain two groups of acknowledgement information bits;
an encoder, configured to encode the two groups of acknowledgement information bits to obtain two groups of codeword bits, respectively, and generate, from the two groups of codeword bits obtained by the encoding, total codeword bits to be transmitted;
wherein the processor is configured to generate acknowledgement information bits corresponding to a first codeword and a second codeword transmitted on each downlink subframe in the each component carrier, and map the acknowledgement information bits corresponding to the first codeword and the second codeword transmitted on each downlink subframe to two acknowledgement information bits d(0) and d(1), respectively, so that when only one codeword is transmitted on at least one first downlink subframe in the each component carrier, acknowledgement information bits corresponding to the one codeword transmitted on the at least one first downlink subframe are mapped to d(0), and/or so that when only one codeword is transmitted on at least one second downlink subframe in each of the component carriers, acknowledgement information bits corresponding to the one codeword transmitted on the at least one second downlink subframe are mapped to d(1).
10. The user equipment according to claim 9, wherein:
the processor is configured to place acknowledgement information bits corresponding to N_sps PDSCHs scheduled by semi-persistent scheduling into last N_sps�a bit positions;
place acknowledgement information bits corresponding to downlink subframes corresponding to DAI=1 to DAI=DAI_max DCIs into first DAI_max�a bit positions; and
set the remaining (D�a?(DAI_max+N_sps)�a) acknowledgement information bits to �0�;
wherein the a is the bit number of acknowledgement information bits corresponding to the each downlink subframe and the D is the number of downlink subframes for which the acknowledgement information bits need to be generated.
11. The user equipment according to claim 9, wherein:
the processor is configured to: in ascending or descending order of carrier numbers, assigning the ordered acknowledgement information bits corresponding to the each component carrier in the at least one component carrier to the two groups, respectively.
12. The user equipment according to claim 9, wherein the alternately assigning is based on granularity of a bit.
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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.