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

A technology of logical channel number and logical channel, applied in transmission systems, digital transmission systems, wireless communications, etc., can solve the problem that LCID cannot identify logical channels, LCID cannot identify RB logical channels, and the number of LCIDs cannot meet the needs of RB expansion, etc. problem, to achieve the effect of guaranteed performance

Active Publication Date: 2011-07-06
DATANG MOBILE COMM EQUIP CO LTD
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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

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

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Example Embodiment

[0077] In the embodiment of the present invention, the base station divides the logical channels corresponding to the multiple RBs corresponding to the RN equipment into at least two groups, assigns a different logical channel group identifier to each group, and corresponds to each of the multiple RBs corresponding to each group. The logical channel is assigned LCID, where the LCID of the logical channel corresponding to each RB in the same group is different; the RN device is notified of the correspondence between the RB identification and the logical channel identification, where the logical channel identification includes the logical channel number LCID and the logical channel group identification. Because the logical channel numbers are grouped and multiplexed, the LCID with the same length as the LTE system can identify more than the number of logical channels identified by the LTE system; this further ensures the performance after the system architecture changes.

[0078] In...

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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...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04L1/00
Inventor 谌丽鲍炜
Owner DATANG MOBILE COMM EQUIP CO LTD
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