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Random access method, wireless access network element and mobile communication system

A wireless access network element and random access technology, applied in the field of communications, can solve the problems of reducing random access speed and increasing access delay, and achieve the effect of improving random access performance

Active Publication Date: 2015-03-11
SHANGHAI HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Practice has found that in many cases, frequency offset estimation and compensation not only increase the access delay, but if the frequency offset estimation at this time is inaccurate, it may further reduce the random access speed

Method used

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  • Random access method, wireless access network element and mobile communication system
  • Random access method, wireless access network element and mobile communication system
  • Random access method, wireless access network element and mobile communication system

Examples

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Embodiment Construction

[0027] Embodiments of the present invention provide a random access method, a wireless access network element, and a mobile communication system

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0029] A detailed description is given below through specific examples.

[0030] An embodiment of the random access method of the present invention is a random access method, comprising: receiving an access request from a UE; performing antenna compensation calculation on the received access request to obta...

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Abstract

The embodiment of the invention discloses a random access method, a wireless access network element and a mobile communication system. The random access method comprises the following steps of: receiving an access request from user equipment (UE); performing antenna compensation calculation on the received access request to obtain an antenna-compensated access request; primarily checking the antenna-compensated access request; and / or performing frequency offset compensation on the data part of the antenna-compensated access request to obtain frequency offset-compensated access request, and performing primary checking on the frequency offset-compensated access request; and if the antenna-compensated access request is primarily checked to be correct, performing the random access of the UE based on the antenna-compensated access request; or if the frequency offset-compensated access request is secondarily checked to be correct, performing the random access of the UE based on the frequency offset-compensated access request. The scheme provided by the embodiment of the invention is favorable for improving random access performance.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a random access method, a wireless access network element and a mobile communication system. Background technique [0002] With the continuous development of wireless technology, there are many different forms of wireless mobile systems, such as: WCDMA (Wideband Code Division Multiple Access, wideband code division multiple access system), WIMAX (Worldwide Interoperability for Microwave Access, global microwave access Access and interoperability system), 3GPP LTE (3GPP Long Term Evolution, long-term evolution of the third generation partnership) system, LTE evolution system (LTE-A) and other wireless mobile systems. [0003] For example, for the LTE / LTE-A system, the UE (User Equipment, user equipment) can be called the user side, and the Node B / eNB (evolved base station), CN (Core Network, core network) can be regarded as the wireless network side. For a WCDMA system, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08
Inventor 谢传波
Owner SHANGHAI HUAWEI TECH CO LTD
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