Method, system and device for allocating logical channel identifiers (LCID) and determining logical channels

Abstract

The embodiment of the invention relates to a radio communication technology, in particular to a method, a system and a device for allocating logical channel identifiers (LCID) and determining logical channels, which are used for making the LCIDs as long as a long term evolution (LTE) system capable of identifying the logical channels more than the logical channels identified by the LTE system. The method provided by the embodiment of the invention comprises the following steps that: a node B (NB) divides the logical channels corresponding to a plurality of radio bearers (RB) corresponding to relay node (RN) equipment into two groups, allocates different logical channel group identifiers to each group, and allocates the LCIDs to the logical channels corresponding to each of the plurality of RBs corresponding to the each group, wherein the LCIDs of the logical channel corresponding to the each RB in the same group are different; the NB establishes a correspondence relationship between an RB identifier and a logical signal identifier, wherein the logical channel identifier includes the LCIDs and the logical channel group identifiers; and the NB informs the RN equipment of the correspondence relationship. By the method provided by the embodiment of the invention, the performance of a changed system architecture can be guaranteed.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a method, system and device for allocating logical channel numbers and determining logical channels. Background technique [0002] After the LTE-A (Long Term Evolution-Advanced, long-term evolution upgrade) system introduces the Relay (relay) node, the following nodes, interfaces and links are defined, such as Figure 1A as shown, [0003] Nodes include: [0004] Donor-eNB: eNB (evolved base station) wirelessly connected to RN (relay) equipment, abbreviated as DeNB; [0005] Relay-Node: an entity existing between DeNB and UE, abbreviated as RN device; [0006] Relay-UE: UE that performs data interaction with RN equipment, abbreviated as R-UE; [0007] Macro UE: a UE that directly exchanges data with the DeNB. [0008] Interfaces include: [0009] Un interface: the interface between the RN device and the DeNB; [0010] Uu interface: interface between UE and RN equ...

AI Technical Summary

Problems solved by technology

[0028] At present, in the LTE system, the number of RBs is small, and LCID can identify the logical channel corresponding to each RB. However, with the continuous change of the system architecture, for example, in LTE-A, it is necessary to expand the number of RBs so that the number of LCIDs does not change. Can identify the logical channel corresponding to each RB

[0029] To sum up, the current number of LCIDs cannot meet the needs of RB expansion, resulting in the inability of LCIDs to identify the logical channel corresponding to each RB

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