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Random access resource configuration method and device

A technology of random access and distribution method, which is applied in the field of communication, can solve problems such as access conflicts, and achieve the effect of reducing the probability of conflicts

Inactive Publication Date: 2011-10-05
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the inventors found that in the above-mentioned group-based paging process, when the MME pages all the MTC devices covered by the above-mentioned wireless access network point, a large number of MTC devices will randomly access the network in response to the paging. Incoming resources are limited, which will lead to access conflicts

Method used

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  • Random access resource configuration method and device
  • Random access resource configuration method and device

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Embodiment 1

[0026] In the application scenario of the embodiment of the present invention, multiple MTC terminals belonging to the same subscriber form a target group, and each target group of this type has a unique target group identifier, that is, the target group identifier is used to identify the target group . Multiple MTC terminals belonging to the same target group may be located in the same cell, or may be dispersed in multiple different cells. In the prior art, in the group-based paging process, the MME only sends a paging message to a radio access node to page all devices in the group, and the paging message only contains the group identifier, so From this group identifier alone, the wireless access node cannot know how many terminal devices will be paged in the area covered by the wireless access node, so there is not enough information to decide how many contention-based Random access resources are used by terminal devices to reduce the probability of random access collisions...

Embodiment 2

[0042] An embodiment of the present invention provides a method for allocating random access resources, such as image 3 As shown, the method includes the following steps:

[0043] 301. A radio access network node receives a first message delivered by an MME that includes a target group identifier (Group ID) and a parameter (number) of the number of MTC terminals.

[0044] Since MTC terminal devices generally do not move, or move less frequently, or only move within a small area, MME can know the target when paging all MTC terminal devices belonging to the same target group Which wireless access network node each MTC terminal device in the group is currently within the coverage of.

[0045] In one embodiment, the first message may be a trigger message. In one embodiment, the trigger message may be a paging message, for example, when the MME sends a paging message to a wireless access network point, it will carry the target group identifier and the number of MTC terminals in ...

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Abstract

The embodiment of the invention discloses a random access resource configuration method and device and relates to the technical field of communication, wherein the method and device provided by the invention can be used for reducing the probability of collisions when intragroup MTC (Machine Type communications) equipment is randomly accessed into a network. The method comprises the following steps: receiving a first message containing a target group identifier and number parameters of MTC terminals sent by an MME (mobility management entity), wherein the target group identifier is used for identifying a target group, and the number parameters of the MTC terminals are used for representing the number of MTC terminals belonging to the target group in a cell; adjusting random access resources according to the number parameters of the MTC terminals in the first message; and sending a second message to all the MTC terminals belonging to the target group identifier in the cell, wherein the second message is used for indicating that the MTC terminals are selected and accessed from the adjusted random access resources. The method and device provided by the embodiment of the invention is mainly used in the technical field of communication.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a method and device for allocating random access resources. Background technique [0002] MTC (Machine Type Communications) applications refer to the network communication between one or more network elements without human participation, such as traffic control and management, factory monitoring, remote meter reading and other applications. In the above MTC application, when multiple MTC devices belong to one subscriber, all these MTC devices constitute a group of this subscriber. [0003] The prior art realizes the above-mentioned group-based paging process as follows: MME (mobility management entity, mobility management entity) sends a paging message to a wireless access network node, and the wireless access network node broadcasts the random access resource allocated by it through a system broadcast message All terminal devices in the cell, and then, the term...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W74/08
Inventor 郭小龙国炜
Owner HUAWEI TECH CO LTD
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