Method and device for random accessing

A technology of random access and random access response, applied in the field of communication, can solve the problems of wasted access and delay of channel resources

Active Publication Date: 2014-04-23
SHANGHAI HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of this, an embodiment of the present invention provides a random access method to solve the problem of channel resource waste and access delay problem

Method used

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Embodiment Construction

[0140] 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, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0141] The technical solutions provided by the embodiments of the present invention can be applied to various wireless communication networks, for example: global system for mobile communication (referred to as GSM) system, code division multiple access (code division multiple access, referred to as CDMA) system , wideband code division multiple access (WCDMA for short) system, universal mobile telecommunications system (UMTS for short) system, general packet r...

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Abstract

The embodiment of the invention discloses a method and a device for random accessing. The method for the random accessing is characterized in that first downlink assignment information is obtained through a mapping relationship way of the first downlink assignment information and lead codes, wherein the first downlink assignment information is the downlink assignment information which is used for random-accessing response information, and a PDCCH (physical downlink control channel) does not need to repeat the transmission scheduling signaling of the random-accessing response information, so as to solve the problem of the existing random accessing method that the waste of channel resources and delayed accessing are caused as the PDCCH is adopted and repetitively transmits the assignment signaling of the random-accessing response information .

Description

technical field [0001] The present invention relates to the technical field of communications, and more specifically, to a random access method and device. Background technique [0002] Methods for random access of a user equipment (user equipment, referred to as UE) to a wireless communication network can be classified into two types: non-contention-based random access and contention-based random access. [0003] In the contention-based random access process, the base station sends a random access response message to the UE, and before the UE sends an uplink message to the base station according to the random access response message, the base station needs to pass the PDCCH ( Physical Downlink Control Channel (Physical Downlink Control Channel) channel sends scheduling signaling of a random access response message to the UE, where the scheduling signaling of the random access response message includes that the UE receives the random access The physical resources used by th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W74/08
CPCH04W74/006H04W74/0833
Inventor 权威杨晓东胡振兴张戬
Owner SHANGHAI HUAWEI TECH CO LTD
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