METHOD AND APPARATUS FOR REDUCING SIGNALING OVERHEAD IN A WIRELESS COMMUNICATION SYSTEM

摘要

A method and apparatus are disclosed for a relay UE to receive packets from an eNB where the relay UE acts as a relay for forwarding the packets between a remote UE and the eNB. In one embodiment, the method includes the relay UE connecting with the eNB. The method further includes the relay UE being configured with a radio bearer between the relay UE and the eNB. The method also includes the relay UE receiving a downlink packet on the radio bearer from the eNB, wherein the downlink packet is to be transmitted to the remote UE. In addition, the method includes the relay UE not transmitting any resource request to the eNB for requesting a SL grant for transmission of a sidelink packet including the downlink packet when the sidelink packet becomes available for transmission and there is currently no data available for transmission to the remote UE. Furthermore, the method includes the relay UE receiving the SL grant from the eNB. Also, the method includes the relay UE using the SL grant to transmit the sidelink packet to the remote UE.

主权项

1. A method for a relay UE (User Equipment) for forwarding packets between a remote UE and an eNB (evolved Node B), comprising:
the relay UE connects with the eNB; the relay UE is configured with a radio bearer between the relay UE and the eNB; the relay UE receives a downlink packet on the radio bearer from the eNB, wherein the downlink packet is to be transmitted to the remote UE; the relay UE does not transmit any resource request to the eNB for requesting a sidelink grant for transmission of a sidelink packet including the downlink packet when the sidelink packet becomes available for transmission and there is currently no data available for transmission to the remote UE; and the relay UE receives the sidelink grant from the eNB and uses the sidelink grant to transmit the sidelink packet to the remote UE.