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Method and system for preventing access interference in wireless communication

A technology of access conflict and wireless communication, which is applied in wireless communication, communication between multiple stations, and devices for providing special services in branch offices. The effect of throughput

Active Publication Date: 2007-10-31
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, if the above-mentioned p-persistence algorithm is used to avoid conflicts during the random access process, the probability of access mainly considers the services carried by the system, and the priority of the system in the access process under this scenario will not be reflected, which will affect The performance of access delay in this state, so it is necessary to improve the original collision avoidance algorithm

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  • Method and system for preventing access interference in wireless communication
  • Method and system for preventing access interference in wireless communication
  • Method and system for preventing access interference in wireless communication

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific implementation methods and accompanying drawings.

[0027] As shown in Fig. 2, it is a flowchart of a preferred embodiment of the present invention.

[0028] Step 101, divide the total access channel resource set into multiple access resource subsets according to the time domain, frequency domain, code domain or any combination thereof;

[0029] The current wireless communication system can adopt a variety of networking technologies, and the more commonly used ones are Frequency Division Multiple Access (FDMA, Frequency Division Multiple Access), Orthogonal Frequency Division Multiple Access (OFDMA, Orthogonal Frequency Division Multiple Access), and Time Division Multiple Access (TDMA). TDMA, Time Division Multiple Access), Code Division Multiple Access (CDMA, Code Division Multiple...

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Abstract

The invention relates to avoiding method and system when the wireless communication accesses interference, the system includes base station and user terminal, the course of avoidance of accessing interference is that: the calculating unit of access exploring sending probability threshold of base station calculates the access exploring sending probability threshold Pi_th according to at least UE access environment state, and all Pi_th is stored in the storage unit of access exploring sending probability threshold, the sending unit of base station sends the information of stored unit of access exploring sending probability threshold via the broadcast channel; the random access exploring sending probability generating units generates the random access exploring sending probability Pi, and sends it to other comparing unit, the comparing unit compares Pi with Pi_th, the access exploring sending unit of user terminal determines weather sends the access exploring to the base station according to the comparing result. Because that it considers the user accessing environment when sets access exploring sending probability threshold, it can ensure the quick access of present user.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a method and system for avoiding access conflicts in wireless communication. Background technique [0002] Due to the limited channel resources, the wireless system pays more attention to the effective use of channels. One of the important ways to effectively use channel resources is to reasonably multiplex and share communication resources. This requires users to access the system only when they have actual business needs and occupy the communication resources of the system. The purpose of this dynamic resource allocation strategy is to make effective use of limited system channel resources, that is, when the number of channels does not change , to serve more users, this dynamic communication resource allocation process is called the random access process of the system. [0003] As an important link in the wireless access process, the random access process can be u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04B7/26H04L12/18H04W74/08
Inventor 黄睿
Owner HUAWEI TECH CO LTD