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Radio link management method based on UTRAN interface between base station in cell selection process

A technology of cell selection and wireless link, applied in communication between multiple stations, selection device, wireless communication, etc., can solve problems such as RNC data processing and signaling processing congestion, affecting data transmission quality and system efficiency, etc. Achieve the effects of shortening the chain building time, improving overall performance and system efficiency, and simplifying the building process

Inactive Publication Date: 2005-02-02
HUAWEI TECH CO LTD
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Problems solved by technology

In the synchronization control process for each cell, no matter what method the RNC adopts, the synchronization information must be forwarded by the RNC to the secondary cell. Because the synchronization control needs to occupy the resources of the RNC and is subject to the interference of the base station in the Universal Terrestrial Radio Access Network (UTRAN), The impact of inter-interface / inter-RNC interface (Iub / Iur) interface delay may cause congestion in RNC data processing and signaling processing, thereby affecting data transmission quality and system efficiency during the FCS process

Method used

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  • Radio link management method based on UTRAN interface between base station in cell selection process
  • Radio link management method based on UTRAN interface between base station in cell selection process
  • Radio link management method based on UTRAN interface between base station in cell selection process

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Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0032] In the FCS process of HSDPA, in order to overcome the delay of the Iub / Iur interface and reduce the congestion of RNC data and signaling processing, one way is to move some functions belonging to RNC to the base station in HSDPA, such as moving the endpoint of HARQ to MAC-hs. In this way, the communication based on the IuNB interface can use the data link of the IuNB interface to directly transmit the PDU (protocol data unit) queue synchronization information and other transmission information between the cells, for example, directly transmit the information between the active set cells through the data link between the base stations. PDU queue synchronization information, PDU information directly forwarded by the main cell to the new cell, AMCS (Adaptive Coding and Modulation Scheme), HARQ (Hybrid Automatic Repeat Request), and shared information betw...

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Abstract

A managing method for radio link based on the UTRAN interface between base stations in the quick mini-area selection course shifts down the managing function for the links between the base stations from RNC to the base station. The establishment and the release of links required by FCS are finalized through activating the direct communication between the base stations in the mini-area to reduce the interference from RNC to FCS course, and to promote the FCS course to further separate from the centralized control of RNC so that the blockade and the delay in information transmission and signalling process at Iub / Iur interface and RNC internal can be decreased so as to raise the transmission quality for down-going data in the FCS course.

Description

technical field [0001] The present invention relates to wireless communication packet transmission technology, in particular to the fast cell selection (FCS) process of high-speed downlink packet access (HSDPA), based on the link between the universal terrestrial radio access network (UTRAN) interface between base stations Management method. Background technique [0002] At present, in the process of FCS of HSDPA, protocol data unit (PDU) queues are usually distributed in the base station (NodeB of WCDMA system), and the control of FCS is performed through RNC (Radio Network Controller). [0003] The FCS technology adopted by HSDPA replaces the existing RNC centralized PDU queue with the distributed PDU queue in each cell. During the downlink transmission, the RNC sends the PDU data to all the cells in the active set at the same time, and then the UE (user equipment) selects a best cell (primary cell) to receive the data, while other cells remain on hold for downlink transm...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04
CPCH04W92/20H04W72/00H04W92/12H04W48/20
Inventor 张萍李志明颜宏华
Owner HUAWEI TECH CO LTD
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