Preemption indication and permission indication management for mobile broadband and low latency communication multiplexing
摘要
說明書
Accordingly, rather than semi-statically allocating resources for low latency communications, a base station 105 may preempt (or interrupt) MBB communications (e.g., using puncturing) to accommodate bursty, low latency communications. Thus, low latency communications and MBB communications may be multiplexed using puncturing (e.g., to facilitate improved spectrum utilization). In such cases, it may be appropriate for the base station 105 to transmit a preemption indication (e.g., in a downlink control information (DCI) message that is different from the DCI message used to transmit an uplink or downlink grant) to indicate to a UE 115 operating in an MBB mode (e.g., an MBB UE 115) that resources allocated to the MBB UE 115 are reassigned for the low latency communications. For the preemption of a downlink MBB transmission in a PDSCH, the base station 105 may transmit the preemption indication in a PDCCH following the PDSCH, and, for the preemption of an uplink MBB transmission in a PUSCH, the base station 105 may transmit the preemption indication in a PDCCH preceding the PUSCH. Alternatively, the base station 105 may transmit a permission indication to the MBB UE 115 to indicate that the MBB UE 115 is allowed to transmit on the uplink, and the base station 105 may avoid transmitting a permission indication to the MBB UE 115 when resources allocated to the MBB UE 115 are reassigned for low latency communications.
