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Access method of group terminals and terminals

A terminal access and terminal technology, applied in the field of communication, can solve the problems of access conflict, the base station cannot parse the random code, and the access physical time slot random code resources are limited, etc., to reduce the possibility of conflict.

Inactive Publication Date: 2012-08-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] There are at least the following problems in the prior art: access physical time slots and random code resources are limited, when a large number of terminals randomly select from them, if different terminals choose to send the same random code on the same physical time slot code, then the base station will not be able to resolve the random code, which is called an access conflict, resulting in an access failure, the base station will not be able to respond to the access request of the terminal where the access conflict occurred, and the terminal must start selecting the physical time slot again and random code to perform a new random access process again

Method used

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  • Access method of group terminals and terminals
  • Access method of group terminals and terminals
  • Access method of group terminals and terminals

Examples

Experimental program
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Embodiment 1

[0035] The group terminal access method provided by Embodiment 1 of the present invention, such as figure 1 As shown, the method steps include:

[0036] S101. The terminal acquires group-related parameters from the base station, at least including: the current number m of terminals in the group, and the index number index of the terminal in the group; wherein, the terminals in the group correspond to the index numbers one-to-one , and the index number index is unique within the group.

[0037] Generally, after the network relationship between the group terminal and the base station is established, the base station will broadcast the relevant parameters of the group to the corresponding group terminal, so the terminal can obtain the above parameters from the base station. In this embodiment, the group terminal may be an M2M terminal.

[0038] S102. The terminal receives the access opportunity information broadcast by the base station.

[0039] The access opportunity informat...

Embodiment 2

[0047] The group terminal access method provided by Embodiment 2 of the present invention is described by taking the group terminal as an electric meter and sending electric quantity data to a base station as an example. Such as figure 2 As shown, the method steps include:

[0048] S201. During or after network access, the terminals in the group obtain parameters related to the group from the base station on the network side, at least including: the current number m of terminals in the group, and the index number index of the terminal in the group ; Wherein, the terminals in the group correspond to the index number index one by one, and the index number index is unique in the group.

[0049] For example: in this embodiment, it is assumed that the index numbers index of each terminal in the group are coded continuously, starting from 0. For example, if there are m terminals, the index numbers of each terminal are 0 to m-1 respectively. When the group managed by the base sta...

Embodiment 3

[0076] The group terminal access method provided by Embodiment 3 of the present invention is also described by taking the group terminal as an electric meter and sending electric quantity data to a base station as an example.

[0077] In the third embodiment, the time length used for access is assumed to be Tt-Tr. That is, there is a retention time Tr at the end of Tt after the task is completed.

[0078] Let T0 be the start time of the task completion time Tt, so that Tt is divided into two sections: the former section is from T0 to T0+(Tt-Tr); the latter section is from T0+(Tt-Tr) to T0+Tt. The terminal's initial access can only be performed in the previous period, so the terminal's access time is from T0 to T0+(Tt-Tr).

[0079] Similar to steps S201 to S205 in the second embodiment, in this embodiment, it is assumed that the index numbers of each terminal in the group are also encoded continuously, and the encoding starts from 0 continuously. That is, if there are m termi...

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Abstract

The embodiment of the invention provides an access method of group terminals and terminals, relating to the field of communication. The access method can prevent the group terminals from generating access conflict in a certain specific time length. The method comprises the following steps of: acquiring parameters related to a group from a base station, wherein the parameters comprise the number m of the current terminals of the group, and the index numbers index of the terminals in the group; the terminals in the group correspond to the index numbers index in a one-by-one manner, and the index numbers index are unique in group; receiving access opportunity information broadcast by a base station; receiving a task message sent from the base station for the group, wherein the task message contains time length used by task access; according to the access opportunity information, the time length used for access, the number m of the terminals and the index numbers index of the terminals, obtaining the access opportunity of the terminal; and initiating an access flow on the obtained access opportunity of the terminals. The embodiment of the invention is used for access of the group terminals.

Description

technical field [0001] The present invention relates to the communication field, in particular to a group terminal access method and a terminal. Background technique [0002] Machine to Machine (M2M) technology organically combines wireless communication and information technology, and can be widely used in automatic data collection, security monitoring, automatic vending, item tracking and other fields. There are three modes of M2M: machine-to-machine, machine-to-mobile phone (such as user remote monitoring) and mobile phone-to-machine (such as user remote control). M2M technology uses the existing communication network and access technology to realize the above communication methods. The available communication network and access technology include Global System for Mobile communications (Global System for Mobile communications, GSM), General Packet Radio Service (General Packet Radio Service) , GPRS), Universal Mobile Telecommunications System (UMTS), System Architecture...

Claims

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Application Information

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IPC IPC(8): H04W74/08
Inventor 樊光辉莫君贤
Owner HUAWEI TECH CO LTD
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