Data Transmission Method, Device, and System
AssigneeHuawei Technologies Co., Ltd.
InventorsHaibo XU, Nathan Edward TENNY, Jian WANG
Life of this patent
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Abstract
The present invention provides a data transmission method, a device, and a system, and relates to the field of communications technologies, to resolve a problem that a base station cannot well identify specific remote UE from which data sent by relay UE comes. The method may include: receiving, by relay UE, data of remote UE, where the data includes a first identifier of the remote UE; determining, by the relay UE, a second identifier of the remote UE based on the first identifier; and sending the data of the remote UE and the second identifier of the remote UE to a base station.
Claims20
A data transmission method, wherein the method comprises:
- receiving, by relay user equipment (UE), data of remote UE by using at least one second radio bearer, wherein the data of the remote UE comprises a first identifier of the remote UE and an identifier of each second radio bearer or a logical channel identifier (LCID) of each second radio bearer, and the first identifier is a layer 2 address of the remote UE;
- determining, by the relay UE, a second identifier of the remote UE based on the first identifier of the remote UE, wherein the second identifier is a unique identifier of the remote UE on the relay UE, and the second identifier is allocated by the relay UE or by a base station;
- determining, by the relay UE based on the identifier of each second radio bearer or the LCID of each second radio bearer, a first radio bearer corresponding to the data of the remote UE;
- and
- sending, by the relay UE, the data of the remote UE, the second identifier of the remote UE, and an LCID of the first radio bearer corresponding to the data of the remote UE to the base station by using the first radio bearer.
Relay user equipment (UE), wherein the relay UE comprises:
- a communications interface, the communications interface configured to receive data of remote UE by using at least one second radio bearer, wherein the data of the remote UE comprises a first identifier of the remote UE and an identifier of each second radio bearer or a logical channel identifier (LCID) of each second radio bearer, and the first identifier is a layer 2 address of the remote UE;
- at least one processor;
- and
- one or more memories coupled to the at least one processor and storing programming instructions for execution by the at least one processor to:
- determine a second identifier of the remote UE based on the first identifier of the remote UE received by the communications interface, wherein the second identifier is a unique identifier of the remote UE on the relay UE, and the second identifier is allocated by the relay UE or by a base station;
- and
- determine, based on the identifier of each second radio bearer or the LCID of each second radio bearer, a first radio bearer corresponding to the data of the remote UE, wherein:
- the communications interface is further configured to send, to the base station by using the first radio bearer, the second identifier of the remote UE, the data of the remote UE, and an LCID of the first radio bearer corresponding to the data of the remote UE that is received by the communications interface.
Dependencies are inferred from the claim text.