A random access method and device based on space grouping

A random access and random access request technology, applied in the field of wireless communication, can solve problems such as unfairness, achieve the effects of reducing energy consumption, reducing collision probability, and improving access success rate

Active Publication Date: 2019-10-15
BEIJING UNIV OF POSTS & TELECOMM +1
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  • Description
  • Claims
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Problems solved by technology

[0013] The purpose of the embodiments of the present invention is to provide a random access method, device, and computer-readable storage medium based on space grouping, so as to solve the problem of unfairness in the random access process based on time advance information

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  • A random access method and device based on space grouping
  • A random access method and device based on space grouping
  • A random access method and device based on space grouping

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Embodiment Construction

[0058] 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 making creative efforts belong to the protection scope of the present invention.

[0059] First of all, it needs to be explained that the network devices mentioned in the present invention include devices that can connect to the network, such as base stations, relay stations, etc., and can also be terminal devices. The applicable scenario is that all terminal devices and network devices are fixed in location.

[0060] In order to solve the problem of unfairness in the prior art, embodiments of the present invention provide a random access met...

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Abstract

The embodiment of the invention provides a space grouping-based random access method and device which are applied to network devices. The method comprises the steps that random access requests sent by multiple terminal devices are received; a device group to which each terminal device belongs is determined according to identifiers of the terminal devices; a first terminal device belonging to a target device group is determined from the terminal devices; and random access processing is conducted on the first terminal device. By applying the technical scheme, the unfairness problem generated in the time advance information-based random access process is solved, the collision probability of the random access process is decreased to a certain extent, the access success rate is increased, and energy consumption of the terminal devices and the network devices is indirectly reduced.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a random access method and device based on space grouping. Background technique [0002] In the traditional random access process, terminal equipment randomly selects preamble sequences to compete for uplink channel resources, thereby solving the problem of limited channel resource allocation. However, as the number of terminal devices increases, the collision probability also increases, which affects the resource allocation performance of the system. [0003] In order to reduce the collision probability of terminals, people proposed a technical solution to limit the number of terminal devices connected based on time advance information, such as figure 1 As shown, the program includes the following steps: [0004] The network device broadcasts the available preamble to the terminal device; [0005] The terminal device randomly selects a preamble sequence...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08H04W72/04
CPCH04W72/0446H04W74/0833H04W74/085Y02D30/70
Inventor 张宁波康桂霞宋志群曹宇
Owner BEIJING UNIV OF POSTS & TELECOMM
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