T cell parameter distribution for increasing synchronous performance of radio access network

A wireless access network and parameter distribution technology, applied in the field of communication, can solve problems affecting SCH reception, reduce network synchronization performance, interference, etc., and achieve the effect of improving synchronization performance

Active Publication Date: 2006-11-01
XFUSION DIGITAL TECH CO LTD
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Problems solved by technology

[0006] The purpose of the present invention is to provide a method for allocating T_cell parameters that improves the synchronization performance of the wireless access network. Through this method, it is possible to solve the mutual overlapping interference of different SCHs caused by the UE receiving multiple SCH channels at the same time in the prior art. A problem that affects the reception of SCH, so as to reduce the synchronization performance of the network

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  • T cell parameter distribution for increasing synchronous performance of radio access network
  • T cell parameter distribution for increasing synchronous performance of radio access network

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Embodiment Construction

[0045]From the perspective of the synchronization principle between the UE and the base station, the first step in establishing a connection is that the UE obtains accurate SCH information from the base station, and then can perform other subsequent processing tasks based on the accurate SCH information. If the UE receives multiple SCHs at the same time, the multiple SCHs will interfere with each other, so the synchronization performance of the UE and NodeB will be greatly affected, which will definitely affect the hard handover, soft handover and positioning performance of the mobile terminal, and reduce the quality of network communication. .

[0046] The present invention provides a T_cell parameter allocation method for improving the synchronization performance of a wireless access network. The core of the method is: firstly allocate the T_cell parameter values ​​of the reference cell and its adjacent cells according to the obtained cell information; The coverage radius mo...

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Abstract

The key idea of the method thereof is: in term of the obtained cell information, allocating T-cell values for the reference cell and its adjacent cells, and then in term of the coverage radius of the obtained cell, making amendment for the allocation result. The invention can allocate more precise T-cell parameter value for the reference cell and its adjacent cells so as to ensure UE only capable of receiving SCH message from one cell, by which the interference of SCH from other cell to synchronization of the reference cell can be removed. The invention also can be used in radio access network with distributing base station to configure T-cell parameters of all cells in said network in term of a transmission distance between each RF zooming out unit and the distributing base station so as to solve the problem of hardly ensuring a time sequence relationship on an antenna port in case of a concatenation between RRU and RRU.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for allocating T_cell parameters for improving the synchronization performance of a wireless access network. Background technique [0002] Usually, when a radio access network establishes a link, the basis for establishing a connection between a user terminal (User Equipment, UE) and a base station (NodeB) is that the UE acquires a synchronization channel (SynchChannel, SCH) from the NodeB. Since the synchronization performance directly affects the network service quality, handover and positioning performance, the UE does not want to receive SCHs from different cells at the same time. For this reason, the 3GPP agreement stipulates that each cell of the same NodeB starts to transmit the system frame number at a certain T_cell (the time difference between the BFN timing and the SFN data) moment after the base station frame number (NodeB Frame Number, BFN) timing reference point o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26
Inventor 彭清泉
Owner XFUSION DIGITAL TECH CO LTD
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