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Communication node pairing method and device, communication node and storage medium

A technology of communication nodes and channel information, applied in wireless communication, electrical components, etc., can solve the problems of user pairing difficulty and complex pairing scheme, and achieve the effect of reducing time overhead

Pending Publication Date: 2022-02-18
CHINA MOBILE COMM LTD RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in related technologies, the pairing scheme is relatively complicated, and it is necessary to perform pairing calculations for all users in the system, which will bring additional time overhead when there are many users in the system; and it is difficult to process the pairing of multiple users in the same direction

Method used

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  • Communication node pairing method and device, communication node and storage medium
  • Communication node pairing method and device, communication node and storage medium
  • Communication node pairing method and device, communication node and storage medium

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Embodiment Construction

[0054] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0055] In related technologies, the adopted pairing scheme is as follows:

[0056] Assuming a MIMO uplink system, the base station has 2 antennas, and there are 2 single-antenna users in the cell. Assuming that they have been paired successfully, the channel matrix of the 2×2 VMIMO system is as follows:

[0057]

[0058] Among them, H 1 and H 2 Respectively represent channel matrices formed by two configured users and base stations, and the two paired user channels are independent of each other. At this time, the received signal vector at the base station can be written as:

[0059]

[0060] where x 1 and x 2 Represents the transmitted signals of two paired users, and n represents Gaussian white noise.

[0061] Orthogonal pairing selects users whose channels best meet the orthogonal characteristics for pairing, and then transmits user da...

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Abstract

The invention discloses a communication node pairing method and device, a communication node and a storage medium. The method comprises the following steps of: acquiring channel information of K second communication nodes by a first communication node, wherein K is an integer greater than or equal to 2; according to the obtained channel information of the K second communication nodes, selecting the second communication nodes, of which the positions meet a preset condition with a position of the first communication node, from the K second communication nodes to obtain Q to-be-paired communication nodes, wherein Q is an integer smaller than K; according to an allocation strategy, allocating a mode to each communication node in the Q to-be-paired communication nodes; and pairing the Q to-be-paired communication nodes by using the modalities and channel information of the Q to-be-paired communication nodes.

Description

technical field [0001] The present application relates to the technical field of wireless communication, and in particular to a communication node pairing method, device, communication node and storage medium. Background technique [0002] A Multiple-Input Multiple-Output (MIMO, Multi-Input Multi-Output) technology is a key technology of a Long Term Evolution (LTE) system, which can greatly improve spectrum efficiency. However, limited by the hardware conditions of the terminal, it is difficult to meet the practical application of terminal multi-antenna reception. In order to solve this problem, in the LTE system, a virtual MIMO technology (VMIMO, Virtual MIMO) is proposed. VMIMO allows at least two users to pair, use the same video resource to transmit data, and obtain spatial multiplexing gain. Therefore, user pairing technology is one of the key technologies of VMIMO. Common user pairing methods include: random user pairing (RPS, Random Pairing Scheduling), orthogonal u...

Claims

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Application Information

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IPC IPC(8): H04W24/02
CPCH04W24/02
Inventor 王笑千夏亮金婧王启星
Owner CHINA MOBILE COMM LTD RES INST
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