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Method and system for connecting conflict avoidance in radio communication

A technology of access conflict and wireless communication, which is applied in wireless communication, radio/inductive link selection and arrangement, electrical components, etc., can solve the problem of low system throughput, and achieve the effect of improving throughput and fully avoiding conflicts

Active Publication Date: 2009-06-03
HUAWEI TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method and system for conflict avoidance in a wireless conflict system to solve the existing technical problem that the current access test can be sent only according to a specific probability judgment threshold, resulting in low system throughput

Method used

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  • Method and system for connecting conflict avoidance in radio communication
  • Method and system for connecting conflict avoidance in radio communication
  • Method and system for connecting conflict avoidance in radio communication

Examples

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no. 1 example

[0045] Please see figure 1 , which is a flow chart of the first embodiment of the method for avoiding access conflicts in wireless communication disclosed by the present invention:

[0046] Step 110: Divide the total access channel resource set into multiple access resource subsets according to time domain, frequency domain, code domain or any combination thereof.

[0047] The current wireless communication system can adopt a variety of networking technologies, and the more commonly used ones are Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Time Division Multiple Access (TDMA), and Code Division Multiple Access (CDMA). All access channel resources are regarded as a whole resource set, and the total access channel resource sets are different with different networking technologies. Only taking typical OFDMA and CDMA as examples to describe in detail how to divide the total access channel resource set into multiple access reso...

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Abstract

The method comprises: in the first, the system sends the load identifying information to user end in fixed time interval; when the access load is identified as non-overloaded, the user end directly sends the current random access probe; when the access load is identified as overloaded, the user end makes conflict dodge before sending the random access probe. The invention also reveals a method for avoiding the access conflict in radio communication system, which comprises: the overall resources of access channel is divided into multi access sub-sets; setting different probability decision threshold for each access resource sub-set, and sending the database information of said probability decision threshold to user end at fixed time interval; user end randomly selects an access channel, and confirms its access resource sub-set; according to current condition, inquiring the probability decision database corresponding to the access resource sub-set to get the probability decision threshold of current access probe; according to said probability decision threshold, deciding if the current random access probe is capable to be sent.

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 limited channel resources, wireless systems pay more attention to the effective use of channels. One of the important methods for effectively utilizing channel resources is to reasonably multiplex and share communication resources. In this way, users are required to access the system only when they have actual business needs, occupying 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, to serve more users without changing the number of channels. 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 proces...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/38H04W74/08
Inventor 黄睿
Owner HUAWEI TECH CO LTD
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