Random access method and device

A random access and terminal technology, applied in electrical components, wireless communication, etc., can solve the problems of increasing network access capacity, inability to completely eliminate interference between user communication data, and high complexity, so as to increase network access volume and improve The effect of network access capacity

Active Publication Date: 2015-09-02
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

However, in practical applications, due to the high complexity of the interference cancellation receiver method, and sometimes the interference between user communication data cannot be completely eliminated, the use of non-orthogonal multiple access random access mode to access the network is different from that of orthogonal multiple access random access mode. Compared with accessing the network in the access mode, the bit error rate and dec...

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Embodiment Construction

[0071] 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 creative efforts fall within the protection scope of the present invention.

[0072] figure 1 It is a schematic flowchart of a random access method provided by an embodiment of the present invention, the method is applied to a terminal, and includes:

[0073] S101: Obtain a selection threshold of a multiple access random access mode based on communication signal quality according to the quality of service (QoS) of the target communication service.

[0074] In this step, according to the predefined communication signal quality value and the ...

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Abstract

The embodiment of the invention discloses a random access method and device, and relates to the technical field of wireless communication. The method comprises the steps: obtaining a selection threshold value of a multi-address random access mode based on the quality of a communication signal according to the target communication business QoS (quality of service); determining a communication signal quality value corresponding to the selection threshold value; judging whether the communication signal quality value is greater than the selection threshold value or not; selecting a non-orthogonal multi-address random access mode for random access if the communication signal quality value is greater than the selection threshold value; and selecting an orthogonal multi-address random access mode for random access if the communication signal quality value is not greater than the selection threshold value. Through the scheme provided by the embodiment of the invention, the method and device can improve the capacity of network access under the condition of meeting the requirements of communication business QoS.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a random access method and device. Background technique [0002] With the rapid development of network technology, more and more terminals need to access the wireless network in wireless communication. Each terminal accessing the wireless network needs corresponding resources for accessing the network and resources for transmitting data. However, wireless These resources in the network are limited, so with the development of the wireless network, it faces a huge challenge in network access capacity. [0003] In wireless communication, the multiple access random access mode selected by the terminal is an important factor affecting the network access capacity. From the perspective of resource multiplexing, the multiple access random access mode can be divided into two types: an orthogonal multiple access random access mode and a non-orthogonal multiple acces...

Claims

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Application Information

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IPC IPC(8): H04W74/08
CPCH04W74/0833
Inventor 张宁波康桂霞
Owner BEIJING UNIV OF POSTS & TELECOMM
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