Configured grant uplink control information (UCI) mapping rules
A method and apparatus are disclosed for configured grant uplink control information (UCI) mapping rules. In one embodiment, a network node is configured to transmit downlink control information for a configured grant physical uplink shared channel, CG-PUSCH; and receive configured grant uplink control information, CG-UCI, on the CG-PUSCH, the CG-UCI being mapped to the CG-PUSCH based at least in part on a presence of at least one Hybrid Automatic Repeat reQuest-acknowledgement, HARQ-ACK. In another embodiment, a wireless device is configured to receive, from the network node, downlink control information for a configured grant physical uplink shared channel, CG-PUSCH; and transmit a configured grant uplink control information, CG-UCI, on the CG-PUSCH, the CG-UCI being mapped to the CG-PUSCH based at least in part on a presence of at least one Hybrid Automatic Repeat reQuest-acknowledgement, HARQ-ACK.
1. A method implemented in a wireless device, the method comprising:
receiving, from a network node, downlink control information for a configured grant physical uplink shared channel (CG-PUSCH);
receiving signaling from the network node indicating whether multiplexing of configured grant uplink control information (CG-UCI) on the CG-PUSCH with other UCI is allowed; and
transmitting the CG-UCI on the CG-PUSCH, the CG-UCI being mapped to the CG-PUSCH based at least in part on a presence of at least one Hybrid Automatic Repeat reQuest-acknowledgement (HARQ-ACK).
2. The method of claim 1 , wherein the downlink control information corresponds to one of a configured grant Type 1 and a configured grant Type 2.
3. The method of claim 1 , wherein the CG-UCI corresponds to uplink control information related to decoding uplink shared channel (UL-SCH), that is transmitted on a configured grant resource corresponding to the CG-PUSCH, and the at least one HARQ-ACK corresponds to at least one acknowledgement/non-acknowledgment for at least one downlink (DL) transmission.
4. The method of claim 1 , wherein the CG-UCI comprises at least one of a HARQ process identifier (ID), for the CG-PUSCH, a redundancy version (RV) for the CG-PUSCH and a new data indicator (NDI) for the CG-PUSCH.
5. The method of claim 1 , wherein the signaling is received via one of radio resource control (RRC) signaling and physical downlink control channel (PDCCH) signaling.
6. The method of claim 1 , further comprising:
if the received signaling indicates that multiplexing is allowed, multiplexing the CG-UCI bits with bits of the other UCI.
7. The method of claim 1 , wherein the other uplink control information bits include at least one of HARQ-ACK bits and channel state information (CSI) bits.
8. The method of claim 1 , wherein the downlink control information includes at least one of radio resource control (RRC) signaling and downlink control information (DCI) signaling.
9. The method of claim 1 , further comprising one of:
when at least one HARQ-ACK is to be transmitted in the CG-PUSCH, mapping the CG-UCI to the CG-PUSCH as separate from the at least one HARQ-ACK, and transmitting the CG-UCI on the CG-PUSCH as separate from the at least one HARQ-ACK.
10. The method of claim 1 , further comprising one of:
when at least one HARQ-ACK is not to be transmitted in the CG-PUSCH, mapping the CG-UCI to an immediate next orthogonal frequency division multiplexing (OFDM) symbol after a first demodulation reference signal (DMRS) for the CG-PUSCH.
11. The method of claim 10 , wherein the CG-UCI has a same priority as a HARQ-ACK uplink control information, UCI.
12. The method of claim 1 , further comprising:
determining, Q′ CG-UCI , a number of coded modulation symbols per layer for a CG-UCI transmission on the CG-PUSCH with an uplink shared channel (UL-SCH) and without the HARQ-ACK according to:
Q
′
CG
-
UCI
=
min
{
⌈
(
O
CG
-
UCI
+
L
CG
-
UCI
)
·
β
offset
PUSCH
·
∑
l
=
0
N
symb
,
all
PUSCH
-
1
M
sc
UCI
(
l
)
∑
r
=
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C
UL
-
SCH
-
1
K
r
⌉
,
⌈
α
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l
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l
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N
symb
,
all
PUSCH
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M
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UCI
(
l
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,
wherein,
O CG-UCI represents a number of bits for the CG-UCI;
L CG-UCI represents a number of cyclic redundancy check (CRC) bits for the CG-UCI;
β PUSCH offset represents an offset value that is a same value that is configured for the HARQ-ACK;
C UL-SCH represents a number of code blocks for the UL-SCH;
K r=0 or K r represents an r-th code block size for the UL-SCH of the CG-PUSCH transmission;
M PUSCH sc represents a scheduled bandwidth of the CG-PUSCH transmission, expressed as a number of subcarriers;
M sc PT-RS (l) represents a number of subcarriers in orthogonal frequency-division multiplexed (OFDM) symbol l that carries a phase tracking reference signal (PTRS) in the PUSCH transmission;
M sc UCI (l) represents a number of resource elements that can be used for transmission of uplink control information, UCI, in the OFDM symbol l, for l=0, 1, 2, . . . , N symb,all PUSCH −1, in the CG-PUSCH transmission and N symb,all PUSCH is a total number of OFDM symbols of the CG-PUSCH, including all OFDM symbols used for a demodulation reference signal (DMRS);
for any OFDM symbol that carries DMRS of the PUSCH, M sc UCI (l)=0;
for any OFDM symbol that does not carry DMRS of the PUSCH, M sc UCI (l)=M sc PT-RS (l);
α is configured by higher layer parameter scaling; and
l 0 represents a symbol index of a first OFDM symbol that does not carry DMRS of the CG-PUSCH, after first DMRS symbols, in the CG-PUSCH transmission.
13. The method of claim 1 , further comprising:
determining, Q′ ACK , a number of coded modulation symbols per layer for a HARQ-ACK transmission on the CG-PUSCH with an uplink shared channel (UL-SCH), and with the HARQ-ACK using at least: O ACK =a number of bits for the CG-UCI+a number of the HARQ-ACK bits.
14. The method of claim 1 , further comprising:
determining, Q′ ACK , a number of coded modulation symbols per layer for a transmission on the CG-PUSCH with an uplink shared channel (UL-SCH) and without the HARQ-ACK using at least: O ACK =O CG-UCI , O CG-UCI representing a number of bits for the CG-UCI.
15. The method of claim 1 , wherein receiving the CG-UCI further comprises:
if the transmitted signaling indicates that multiplexing is allowed, receiving the CG-UCI bits as multiplexed with bits of the other UCI.
16. A method implemented by a network node configured to communicate with a wireless device, the method comprising:
transmitting downlink control information for a configured grant physical uplink shared channel (CG-PUSCH);
transmitting signaling indicating whether multiplexing of configured grant uplink control information (CG-UCI) on the CG-PUSCH with other UCI is allowed; and
receiving the CG-UCI on the CG-PUSCH, the CG-UCI being mapped to the CG-PUSCH based at least in part on a presence of at least one Hybrid Automatic Repeat reQuest-acknowledgement (HARQ-ACK).
17. The method of claim 16 , wherein transmitting further comprises:
transmitting via one of radio resource control (RRC) signaling and physical downlink control channel (PDCCH) signaling.
18. The method of claim 16 , wherein receiving the CG-UCI further comprises, when at least one HARQ-ACK is not to be transmitted in the CG-PUSCH, receiving the CG-UCI starting from an immediate next orthogonal frequency division multiplexing (OFDM) symbol after a first demodulation reference signal (DMRS) for the CG-PUSCH.
19. A wireless device configured to communicate with a network node, the wireless device comprising processing circuitry, the processing circuitry-configured to cause the wireless device to:
receive, from the network node, downlink control information for a configured grant physical uplink shared channel (CG-PUSCH);
receive signaling from the network node indicating whether multiplexing of configured grant uplink control information (CG-UCI) on the CG-PUSCH with other UCI is allowed; and
transmit the CG-UCI on the CG-PUSCH, the CG-UCI being mapped to the CG-PUSCH based at least in part on a presence of at least one Hybrid Automatic Repeat reQuest-acknowledgement (HARQ-ACK).
20. The wireless device of claim 19 , wherein the downlink control information corresponds to one of a configured grant Type 1 and a configured grant Type 2.
21. A network node configured to communicate with a wireless device, the network node comprising processing circuitry, the processing circuitry configured to cause the network node to:
transmit downlink control information for a configured grant physical uplink shared channel (CG-PUSCH);
transmit signaling indicating whether multiplexing of configured grant uplink control information (CG-UCI) on the CG-PUSCH with other UCI is allowed; and
receive the CG-UCI on the CG-PUSCH, the CG-UCI being mapped to the CG-PUSCH based at least in part on a presence of at least one Hybrid Automatic Repeat reQuest-acknowledgement (HARQ-ACK).
22. The network node of claim 21 , wherein the downlink control information corresponds to one of a configured grant Type and a configured grant Type 2.