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Method, base station and mobile station for implementing switch in mobile commucation system

A mobile communication system and mobile station technology, which is applied in the field of handover, can solve the problems of occupying wireless resources, large handover delay of mobile stations, and handover delay that cannot meet handover requirements, etc., to improve continuity, increase handover success rate, and reduce handover delay and the effect of conflict probability

Inactive Publication Date: 2008-12-03
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In this handover implementation scheme, in this handover implementation scheme, if a large number of mobile stations are allocated dedicated symbols and sub-channels for handover, a large amount of wireless resources of the target base station will be occupied, and the overall communication performance of the target base station will be reduced.
Moreover, when the target base station allocates a dedicated transmission opportunity to the mobile station, it first needs to know that the mobile station needs to be handed over, so that the process of allocating a dedicated transmission opportunity by the target base station will cause a certain delay, resulting in a relatively slow handover process of the mobile station. large switching delay
In a high-speed motion environment, the switching delay generated in this implementation usually cannot meet the switching requirements in a high-speed environment

Method used

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  • Method, base station and mobile station for implementing switch in mobile commucation system
  • Method, base station and mobile station for implementing switch in mobile commucation system
  • Method, base station and mobile station for implementing switch in mobile commucation system

Examples

Experimental program
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Effect test

Embodiment 1

[0063] Such as figure 2 As shown, in this embodiment, the serving base station obtains the moving speed, measurement information, and moving direction of the mobile station, etc., and the base station determines the target base station for handover. The corresponding processing process includes:

[0064] Step 1, determining a mobile station whose moving speed exceeds a predetermined threshold;

[0065] The serving base station calculates the moving speed of the mobile station. When the moving speed is greater than the predetermined threshold value Tr (for example, the threshold value of the hourly speed can be set to 150Km / h, etc.), the serving base station determines that the expected access can be performed in a non-competitive manner. And determine that it is necessary to reserve resources for the mobile station through negotiation with neighboring base stations (which may be one or more neighboring base stations) according to the measurement results (ie, measurement infor...

Embodiment 2

[0072] Such as image 3 As shown, in this embodiment, the mobile station actively reports the moving speed, and the mobile station actively selects the target base station, and the corresponding processing process includes:

[0073] Step 1, the mobile station calculates its own moving speed, and reports its calculated own moving speed to the serving base station;

[0074] Step 2, after receiving the moving speed of the mobile station reported by the mobile station, the serving base station determines the mobile station whose moving speed exceeds a predetermined threshold;

[0075] When the serving base station determines that the moving speed of the mobile station is greater than the predetermined threshold value Tr (for example, the threshold value of the hourly speed can be set to 150Km / h, etc.), the expected access can be performed in a non-competitive manner according to the measurement result, and it is determined that it needs to communicate with Neighboring base statio...

Embodiment 3

[0081] Such as Figure 4 As shown, in this embodiment, the mobile station reports the moving speed according to the requirements, and the serving base station determines the target base station, and the corresponding processing process includes:

[0082] Step 1, the mobile station calculates its own moving speed, and notifies the serving base station when the moving speed exceeds a predetermined threshold;

[0083] Step 2, the serving base station learns the mobile station whose moving speed is greater than the predetermined threshold value (for example, the threshold value of the speed per hour can be set to 150Km / h, etc.), and determines that it needs to communicate with the neighbor base station (it can be one or more) Negotiate to reserve resources for the mobile station

[0084] Step 3, negotiating with neighboring base stations to reserve access resources;

[0085] Step 4, the mobile station sends a measurement report to the serving base station;

[0086] Step 5, the ...

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Abstract

The invention discloses a method for realizing switch, a base station and a mobile station thereof. The method essentially comprises the steps: at the network side, a preserved access resource is obtained for the mobile station which has a moving speed exceeds a preset threshold value; after making sure that the mobile station which has a moving speed exceeds a preset threshold value needs to be switched, a switching operation is fulfilled by the preserved access resource, therefore, the embodiment of the invention adopts a switching scheme of preserving special resource for the mobile station moving at a high speed so as to effectively reduce the switching delay and probability of collision and improve the switching success rate, which means that the realization of the embodiment of the invention can effectively improve the service continuity of the mobile station in high-speed environment.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a technology for realizing switching in a mobile communication system. Background technique [0002] During the handover process of the mobile communication system, there are two main schemes adopted by the mobile station to access the target base station, which will be described separately below. [0003] The first handover implementation scheme is to implement handover based on contention-based random access, that is, to implement handover based on contention-based ranging. In this handover implementation scheme, when the mobile station performs handover and ranging to the target base station, it does not allocate a special transmission opportunity for the mobile station, but competes for the use of the transmission opportunity. [0004] In the process of implementing the present invention, the inventors found that at least the following problems exist in the abov...

Claims

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Application Information

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IPC IPC(8): H04Q7/38
Inventor 李亚娟常俊仁
Owner HUAWEI TECH CO LTD
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