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Channel allocation method for multi-carrier CDMA system

A code division multiple access and channel configuration technology, applied in the field of communication, can solve the problems of carrier service termination and user access time extension, etc., to improve base station service level, reduce collision probability and access time, and enhance concurrent transmission rate. Effect

Inactive Publication Date: 2006-02-22
ZTE CORP
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AI Technical Summary

Problems solved by technology

[0031] The technical problem to be solved by the present invention is to provide a channel configuration method applied in a multi-carrier code division multiple access system, which solves the problem that in the prior art, when the number of users is large, the user access time will be prolonged, and when a main carrier cannot operate normally Service will cause the termination of all carrier services in the entire cell

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  • Channel allocation method for multi-carrier CDMA system

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Embodiment Construction

[0049] The present invention discloses the following channel configuration method for a cell / sector under multiple carriers, that is, for an area covered by multiple carrier frequencies, the base station controller RNC can base the cell / sector on the basis of the number of carriers, the number of potential (activated) users ( traffic analysis) to rationally configure the number of main carriers in this cell / sector, the detailed scheme and related agreements are as follows:

[0050] For each cell / sector, define one or several (such as N1, generally recommended as 2) from the assigned N frequency points as the primary carrier, and the remaining carriers as secondary carriers (N-N1) (described as Main 1, Main 2, ..., Main N1, Secondary 1, Secondary 2, ..., Secondary (N-N1)).

[0051] For the configuration of two or more frequency points as the main carrier frequency point, it is stipulated that the main carrier frequency point is from low to high, and its priority is lowered in t...

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Abstract

The invention discloses a channel distribution method of multi-carrier code division multiple access system, comprising: in each section, selecting one or several frequency points as the main carrier frequency from the distributed frequency points while the left frequency points as auxiliary carrier frequency; according to the priority level, transmitting the downward guide time slot, the broadcast information and the calling information on the main carrier frequency with highest priority and arranging other public control channel on other main carrier frequency; indicating the main carrier frequency of system, so the base station can find the frequency of transmitting broadcast and calling information, and adding the information of frequency points on the all distributed information of all channels; the main and auxiliary carrier frequencies use the same disturbing code and the basic training sequence; operating the multi-time slot arrangement on same carrier frequency; setting the upward-downward switching points of main and auxiliary carrier frequencies as same. The invention can arrange a plurality of main carrier frequencies to provide the public access control channel service and reduce the interface probability and the access time in the accessing time of user terminal.

Description

technical field [0001] The invention relates to a channel configuration method in the communication field, in particular to a channel configuration method applied in a multi-carrier code division multiple access system. Background technique [0002] Like other mobile communication systems, in order to meet the growing demand of the mobile communication market, multi-carrier frequency coverage in the same sector / cell will be an important means for TD-SCDMA (Time Division Synchronous Code Division Multiple Access) system to increase system capacity. [0003] The current TD-SCDMA standard does not consider the multi-carrier frequency characteristics. Therefore, the operation and configuration of radio resources on the Uu interface (the interface between the radio access network and the user terminal) is performed for one carrier frequency. During the cell establishment process of the Iub interface (the interface connecting the base station NodeB and the base station controller ...

Claims

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Application Information

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IPC IPC(8): H04Q7/38H04Q7/36H04W72/04H04W72/10
Inventor 曾召华李景毅
Owner ZTE CORP
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