Patent ID: 11888629
Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H  A | IPC H

Claim 14:
15. A base station comprising a processor and memory, the processor and memory configured to:
send a radio resource control (RRC) message, the RRC message including configuration information that indicates one or more uplink hybrid automatic repeat request (HARQ) process identifications (IDs) for a wireless transmit/receive unit (WTRU) to use with an uplink semi-persistent resource;
send a first physical downlink control channel (PDCCH) transmission, the first PDCCH transmission activating the uplink semi-persistent resource for use by the WTRU;
determine a first uplink HARQ process ID for a first uplink transmission using the uplink semi-persistent resource, wherein the first uplink HARQ process ID is one of the one or more uplink HARQ process IDs configured for use with the uplink semi-persistent resource, and the first uplink HARQ process ID is determined based at least in part on a system frame number (SFN) associated with the first uplink transmission; and
send a second PDCCH transmission, the second PDCCH transmission comprising a dynamic uplink allocation associated with the first uplink HARQ process ID.