Transmission method and device
A transmission method and transmission time technology, applied in the field of communication, can solve the problems of inconsistent judgment, failure of PUSCH transmission and reception, etc.
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example 1
[0172] The base station sends configuration information to the UE, indicating that it does not support the transmission of HARQ-ACK on the grant-free PUSCH, for example, sending the configuration parameter HARQ-ACK_ON_GF through high-level signaling, which indicates "FALSE"; the UE receives the high-level signaling and determines the high-level signaling Set the sent configuration parameter HARQ-ACK_ON_GF to be "FALSE", and then determine not to send HARQ-ACK on the grant-free PUSCH.
[0173] Case 1: If Figure 4 As shown, it is assumed that the base station has scheduled 3 PDSCHs, and the HARQ-ACKs of these three PDSCHs are all fed back at the same uplink time (for example, slot n+5); assuming that this time is configured for the grant-free PUSCH time, and The UE does not support simultaneous transmission of PUCCH and PUSCH; then:
[0174] UE side:
[0175] (1) When the UE receives at least one of the three PDSCHs, the UE determines that there is HARQ-ACK transmission in th...
example 2
[0190] The base station sends configuration information to the UE, indicating that it supports the transmission of HARQ-ACK on the grant-free PUSCH, for example, sending the configuration parameter HARQ-ACK_ON_GF through high-level signaling, which indicates "TRUE"; the UE receives high-level signaling and determines the high-level signaling The sent configuration parameter HARQ-ACK_ON_GF is "TRUE", and then it is determined that the HARQ-ACK can be sent on the grant-free PUSCH. For example, for case 1 of example 1:
[0191] One way of implementation: if there is HARQ-ACK at the transmission moment of the first PUSCH, when the simultaneous transmission of PUCCH and PUSCH is not supported, if the UE receives downlink transmission, HARQ-ACK is carried on the grant-freePUSCH in slot n+5 For uplink transmission, if the UE does not receive the downlink transmission, only the grant-free PUSCH is transmitted in slot n+5 without HARQ-ACK; at this time, the base station can distinguish...
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