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Network-assisted flexible duplex wireless communication system and method

A wireless communication system and network-assisted technology, applied in the field of wireless communication transmission, can solve the problems of large uplink rate requirements and large downlink rate requirements of multiple users, and achieve the effects of improving total throughput, eliminating interference and reducing complexity.

Active Publication Date: 2020-12-11
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the diversification and personalized development of user services, there may be multiple users with high demand for uplink speed in the cellular system, while other multiple users have high demand for downlink speed. The traditional TDD mode or FDD mode cannot effectively solve this problem. question

Method used

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  • Network-assisted flexible duplex wireless communication system and method
  • Network-assisted flexible duplex wireless communication system and method
  • Network-assisted flexible duplex wireless communication system and method

Examples

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Embodiment Construction

[0018] Such as figure 1 As shown, a network-assisted flexible duplex wireless communication system includes: a RAU module, a user terminal module and a central processing unit module; the RAU module is deployed in each cell of wireless communication, and the signal sent by the central processing unit module passes through the RAU The module sends to the user terminal module, and the signal sent by the user terminal module is sent to the central processing unit module through the RAU module.

[0019] The network-assisted flexible duplex wireless communication system of this embodiment is as follows: figure 1 As shown, the scene consists of multiple RAUs and multiple users, each RAU is connected to the central processing unit through optical fibers (or other high-speed links), and each RAU is equipped with N antennas (N is greater than or equal to 1). Each user is equipped with M antennas (M is greater than or equal to 1). There are K users sending uplink services U , denoted...

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Abstract

The invention discloses a network assisted flexible duplex radio communication system and method. For distributed collaboration networking, collaboration among nodes of a half-duplex base station, under work at same time and same frequency, uplink of multiple users and downlink of other multiple users are supported; the interference between uplink sending nodes and downlink sending nodes is eliminated through the collaboration among the nodes, and the interference of uplink users to downlink users is avoided through combined dispatching or pre-coding design. The network assisted flexible duplex radio communication system and method can support two-way high capacity transmission of multiple users on resources with same time and frequency.

Description

technical field [0001] The invention relates to the technical field of wireless communication transmission, in particular to a network-assisted flexible duplex wireless communication system and a method thereof. Background technique [0002] Existing duplex methods include time division duplex (TDD) and frequency division duplex (FDD). With the diversification and personalized development of user services, there may be multiple users with high demand for uplink speed in the cellular system, while other multiple users have high demand for downlink speed. The traditional TDD mode or FDD mode cannot effectively solve this problem. question. Distributed multi-antenna cooperative transmission is a key technology of 4G and 5G. Through the cooperation between nodes, the spectrum efficiency of the system can be improved. In a distributed wireless communication system, more flexible duplexing can be achieved by making full use of the degrees of freedom in the spatial domain through...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/14H04B7/0456H04B7/0452H04B7/024H04L25/03
CPCH04B7/024H04B7/0452H04B7/0456H04L5/14H04L5/1469H04L25/03006
Inventor 王东明夏心江张余尤肖虎
Owner SOUTHEAST UNIV
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