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Selection process and indication method of access point cluster in large-scale MIMO system without cellular cell

A cell and selection process technology, applied in the directions of access restriction, wireless communication, electrical components, etc., can solve the problem of not providing access point cluster selection criteria, process and indication method of CFmMIMO system, so as to reduce signaling overhead, Guaranteed effect of reliability

Active Publication Date: 2021-11-05
ZHEJIANG LAB
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the existing technologies and protocols have not yet provided the selection criteria, procedures and indication methods for access point clusters in CF mMIMO systems

Method used

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  • Selection process and indication method of access point cluster in large-scale MIMO system without cellular cell

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Embodiment Construction

[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0036] The selection criterion of the access point cluster is stipulated in the protocol in the form of a criterion table.

[0037] refer to figure 1 , there are several parameters in the criterion table, the parameters include one or more of the distance between the access point AP and the user equipment UE, the number of access points AP, the reference signal received power RSRP and the pat...

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Abstract

The invention provides a selection process and an indication method of an access point cluster in a large-scale MIMO (Multiple Input Multiple Output) system without a cellular cell. A criterion table is included, wherein the selected access point cluster at least comprises one main access point AP; indication of an update period and indication of a selection criterion are included; the selection flexibility of the access point cluster is ensured, the signaling overhead is reduced, and the access point cluster serving the UE can be updated in time, so that the reliability of data transmission is ensured.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a selection process and an indication method of an access point cluster in a massive MIMO system without cells. Background technique [0002] Cell-free (CF) massive MIMO (massive multiple-input multiple-output, mMIMO) technology has become one of the most promising technologies for next-generation wireless communications, including 5G-Advanced and 6G. In a typical CF mMIMO system, many access points (Access Point, AP) are distributed in a certain geographical coverage area, and these access points jointly provide services for many user equipment (user equipment, UE). Different from the traditional cellular network, there is no cellular cell in the CFmMIMO network, so it can overcome the boundary effect of the cellular network. Access points in a CF mMIMO network only need to deploy a small number of antennas, instead of deploying a large-scale antenna array on the...

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Application Information

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IPC IPC(8): H04W48/20H04W48/08
CPCH04W48/20H04W48/08
Inventor 刘萌萌李振廷张建锋
Owner ZHEJIANG LAB