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Channel bandwidth dynamic configuration method for synchronous code division multiple access system

A technology of synchronous code division multiple access and channel bandwidth, which is applied in the field of dynamic configuration of channel bandwidth, can solve problems such as not suitable for dynamic configuration of channel bandwidth, unstable combination of measurement results, and differences in multiple access interference levels, so as to overcome instability Factors and misjudgment effects, avoidance of reconfiguration processes, effects of ease of implementation

Inactive Publication Date: 2006-08-02
ZTE CORP
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AI Technical Summary

Problems solved by technology

In the TD-SCDMA system, the number of users assigned to different time slots is different, which causes differences in the multiple access interference levels of different time slots, resulting in dedicated physical channels located in different time slots (belonging to the same wireless The difference in the transmit code power of the bearer) will eventually bring unstable factors to the combination of measurement results and easily cause misjudgment
Therefore, the downlink dedicated transmit code power is not suitable for the dynamic configuration of the channel bandwidth of the TD-SCDMA system

Method used

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  • Channel bandwidth dynamic configuration method for synchronous code division multiple access system
  • Channel bandwidth dynamic configuration method for synchronous code division multiple access system
  • Channel bandwidth dynamic configuration method for synchronous code division multiple access system

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Embodiment Construction

[0039] The invention provides a method for dynamically configuring channel bandwidth in a TD-SCDMA system.

[0040] The core idea of ​​the method of the present invention is to use the timing advance (T ADV ) judge the distance between the UE and the base station, and limit the configuration of the user service rate according to the distance between the UE and the base station, so as to ensure the reasonable utilization of system resources and avoid unnecessary reconfiguration process. image 3 It is a flow chart of the dynamic configuration process of channel bandwidth described in the present invention. Combine below image 3 The implementation of the method of an embodiment of the present invention is further described in detail:

[0041] Step 301: After the radio bearer (RB) of the user packet service is established, configure traffic measurement control parameters and UE internal measurement control parameters, that is, UE timing advance measurement control parameters, ...

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Abstract

A method for dynamically configuring channel bandwidth of synchronous CDMA system includes measuring service amount of data packet service and time preact of user terminal, confirming distance restricted state between base station and user terminal according to measured time preact, reconfiguring up link or down link channel bandwidth according to said distance restricted state and said service amount.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method for dynamically configuring channel bandwidth in a synchronous code division multiple access communication system. Background technique [0002] In the third-generation mobile communication system, it has become an urgent need for operators to provide mobile terminal users with high-quality data transmission services, such as Internet access services, web browsing, email and FTP (text transfer protocol) download services. . The transmission characteristic of the data packet business is sudden and variable rate. For data packet services, if channel resources with a fixed bandwidth are allocated to them, it may not be able to meet the demand for fast data transmission when data bursts, and it will cause waste of redundant channel resources when the amount of data is small. Therefore, in order to improve the utilization efficiency of wireless channel resources, the s...

Claims

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Application Information

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IPC IPC(8): H04Q7/38H04Q7/36H04W28/20H04W72/04
Inventor 谢琼
Owner ZTE CORP
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