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Terminal access method and device

A terminal access and terminal technology, which is applied in the field of communication and can solve the problems of system retransmission and system performance degradation.

Active Publication Date: 2017-04-05
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The embodiment of the present invention provides a terminal access method and device, which are used to solve the problem of system performance degradation caused by collision and possible system retransmission existing in the existing SCMA multi-terminal access mechanism

Method used

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  • Terminal access method and device
  • Terminal access method and device

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Embodiment Construction

[0085] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. 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.

[0086] In the embodiment of the present invention, such as figure 1 As shown, the detailed method flow of terminal access is as follows:

[0087] Step 101: The terminal determines to enter the contention access phase.

[0088] In implementation, if the terminal receives a start signal (Beacon) broadcast by the base station, it determines to enter the contention access phase according to the start signal, and the start signal is used to...

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Abstract

The invention discloses a terminal access method and device, and the method and device are used for solving a problem that the system performance of a conventional SCMA multi-terminal access mechanism is reduced because of collision, and a possible retransmission problem of a system. The method comprises the steps that a terminal is determined to enter a competitive access stage; the terminal determines a first signature according to a random number seed and a signature matrix during the transmission of binary data at each time, and enabling the binary data to be mapped to a multi-dimensional symbol for transmission according to the first signature, wherein the first signatures selected during the transmission of binary data at each time are different.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a terminal access method and device. Background technique [0002] The Internet of Things, as the third wave of the development of the world's information industry after computers and the Internet, will change all aspects of human life, work, and production. The connotation of the Internet of Things is very rich. Recently, the Internet of Vehicles, smart homes, and smart cities that have attracted widespread attention in academia and industry are all specific implementation forms of the Internet of Things. In order to realize the Internet of Things, a large number of interconnected sensors, radio frequency tags and other machine-type devices (Machine-Type Devices) must be arranged and interconnected. The cellular network is the simplest and practical network architecture that can realize the Internet of Things. [0003] In order to implement the Internet of Thin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/18H04W74/08
CPCH04W48/18H04W74/0833H04L27/0008H04L27/34H04L27/36H04L9/0869H04L67/146H04W74/08
Inventor 张朝阳王献斌张昱陈雁
Owner HUAWEI TECH CO LTD
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