M2M (Machine to Machine) service wireless resource dispatching method based on TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) network

A TD-SCDMA, wireless resource scheduling technology, applied in the direction of network traffic/resource management, wireless communication, electrical components, etc., can solve the problems of excessive signaling overhead, terminal access congestion, low data transmission efficiency, etc., to reduce Congestion, efficient use of channels to transmit data, and the effect of simplifying the signaling process

Inactive Publication Date: 2012-11-07
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the shortcomings of terminal access congestion, excessive signaling overhead, and low data transmission efficiency when the current TD-SCDMA network terminal access, signaling establishment, and data transmission methods are directly used for M2M services. Provide a wireless resource scheduling method for M2M services based on a TD-SCDMA network that reduces the access congestion of a large number of M2M terminals, simplifies the signaling process, improves channel utilization efficiency, and supports H2H communication during the M2M communication process

Method used

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  • M2M (Machine to Machine) service wireless resource dispatching method based on TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) network
  • M2M (Machine to Machine) service wireless resource dispatching method based on TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) network
  • M2M (Machine to Machine) service wireless resource dispatching method based on TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) network

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Embodiment 1

[0045] The invention is a TD-SCDMA network-based M2M service wireless resource scheduling method, which is suitable for performing H2H service and M2M service simultaneously in a cell covered by the TD-SCDMA network.

[0046] see figure 1 , the present invention is based on the TD-SCDMA network M2M service radio resource scheduling method comprising the following steps:

[0047] Step 1. Group the M2M terminals in the cell, the base station broadcasts the number N of M2M communication groups in the cell information, and each M2M terminal randomly selects a number from N with equal probability as its own group number n i , the base station forms N subframes into a superframe, and numbers each subframe in the superframe as n i (n i =1, 2, ... N), the subframe number corresponds to the group number; by grouping the M2M terminals in the cell, the number of terminals that simultaneously initiate the uplink synchronization process is reduced, so as to reduce network congestion.

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Embodiment 2

[0074] The wireless resource scheduling method for M2M services based on the TD-SCDMA network is the same as that in Embodiment 1. The wireless resource scheduling method of the present invention will be described in detail below with reference to the accompanying drawings:

[0075] refer to figure 1 , the implementation steps of the present invention include as follows:

[0076] Step 1. In order to prevent a large number of terminals from initiating the uplink synchronization process at the same time, it is necessary to group the M2M terminals in the cell first. The number N of the groups is broadcast by the base station, and each M2M terminal randomly selects a number from N as its own group with equal probability. number n i , the base station forms N subframes into a superframe, and numbers each subframe in the superframe n i (n i = 1, 2, ... N).

[0077] Step 2, refer to figure 2 , in the process of M2M communication, H2H communication is supported for the following...

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Abstract

The invention discloses an M2M (Machine to Machine) service wireless resource dispatching method based on a TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) network. With the adoption of the designed scheme, M2M communication is supported in the TD-SCDMA network and the frequency of congestion conditions caused by accessing a large quantity of M2M terminals can be reduced. Furthermore, according to the M2M service wireless resource dispatching method provided by the invention, a signal transmission process is simplified, channel transmission data are efficiently used; and H2H (Human to Human) communication is supported in an M2M communication process. The M2M service wireless resource dispatching method is realized by the following steps of: grouping the M2M terminals in a cell by a base station; estimating a total terminal number in the cell by the base station according to a condition of an M2M terminal uplink synchronization process; providing an access channel for a terminal which successfully completes the synchronization process; distributing a transmission channel according to abstract information of each terminal; and supporting the H2H communication in the M2M communication process. The M2M service wireless resource dispatching method provided by the invention is used for providing the data transmission service for a large quantity of M2M terminals in the cell within a specific M2M communication time period aiming at the TD-SCDMA network, so that the use rate of the channel can be improved as far as possible in a condition of reducing the conflict, and the influence on the H2H communication is reduced simultaneously.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and mainly relates to M2M terminal access, data transmission and resource scheduling in network communication, in particular to a TD-SCDMA network-based wireless resource scheduling method for M2M services. A cell used for TD-SCDMA network coverage. Background technique [0002] With the advancement of science and technology and society, the Internet of Things technology has attracted more and more attention from people. The realization of "everywhere network society" is the inevitable evolution direction of social informatization and national information development strategy. As an important part of the Internet of Things, M2M (Machine to Machine) communication refers to the general term of a series of technologies or technology combinations that realize autonomous data communication and information interaction between machines without human intervention by using technologies such...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/02H04W72/12
Inventor 史琰杨鹏盛敏于胜涛杨敏郭丹牛永彬
Owner XIDIAN UNIV
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