Patent ID: 11924833
Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. A source User Equipment (UE), comprising a transceiver, a memory, a processor, and a computer program stored in the memory and executed by the processor, wherein the transceiver is configured to execute the computer program, so as to transmit a time-frequency transmission resource for transmitting feedback information for unicasting or multicasting transmission to at least one target UE which has established a connection with the source UE,
wherein the processor is configured to: acquire the feedback information transmitted on the time-frequency transmission resource from the target UE; and determine a unicasting or multicasting transmission state in accordance with the feedback information;
wherein when transmitting the time-frequency transmission resource for transmitting the feedback information for unicasting or multicasting transmission to the at least one target UE which has established the connection with the source UE, the transceiver is further configured to:
establish the connection with the at least one target UE; and
autonomously select a time-frequency transmission resource or receive a time-frequency transmission resource allocated by a network side device, and transmit the time-frequency transmission resource to the target UE;

wherein when establishing the connection with the at least one target UE, the transceiver is further configured to:
in a multicasting communication mode, establish the connection with at least two target UEs; and
in a connection establishment process, negotiate or interact with the at least two target UEs to determine a target group ID and identification information about the source UE and the at least two target UEs;

wherein when acquiring the feedback information transmitted on the time-frequency transmission resource from the target UE, the processor is further configured to:
acquire a second sequence generated by the target UE in accordance with the target group ID; and
perform sliding-related peak detection on the HARQ-ACK feedback channel for the time-frequency transmission resource in accordance with sequence correlation, and acquire the feedback information;

or,
wherein when acquiring the feedback information transmitted on the time-frequency transmission resource from the target UE, the processor is further configured to:
acquire a third sequence generated by the at least one target UE in accordance with the target group ID and corresponding identification information; and
perform sliding-related peak detection on the HARQ-ACK feedback channel for the time-frequency transmission resource in accordance with the sequence correlation, and when NACK information has been detected in accordance with the third sequence, stop the detection and acquire the feedback information,

wherein different pieces of identification information about the target UEs correspond to different offset values.