A collaborative transmission method realized in isomerization wireless network with cooperating relay nodes

A technology for cooperative relay and relay nodes, applied in diversity/multi-antenna systems, space transmit diversity, etc., to achieve balanced wireless data transmission performance, good benefits, and reduced cache requirements

Inactive Publication Date: 2008-07-09
BEIJING UNIV OF POSTS & TELECOMM
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However, the key to the problem is how to achieve adaptive div

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  • A collaborative transmission method realized in isomerization wireless network with cooperating relay nodes
  • A collaborative transmission method realized in isomerization wireless network with cooperating relay nodes
  • A collaborative transmission method realized in isomerization wireless network with cooperating relay nodes

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[0024] 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 in conjunction with the accompanying drawings.

[0025]Referring to Fig. 1, the method for realizing interconnection and intercommunication heterogeneous cooperative transmission of the present invention with cooperative relay nodes in a heterogeneous wireless network is introduced. The method includes the following steps: setting one or more cooperative relay nodes, each cooperative The relay node has two sets of antenna modules; the base station optimizes and selects an appropriate set of heterogeneous cooperative relay nodes for each target user terminal that needs to be relayed, and selects an appropriate number of antennas for each terminal's downlink and uplink, In order to obtain adaptive diversity and multiplexing gain; then comprehensively consider the transmission characteristics of the uplink and downl...

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Abstract

The invention discloses a method for implementing heterogeneous and collaborative transmission in a heterogeneous wireless network by using collaborative trunk nodes; one or more collaborative trunk nodes are arranged, and each of which is provided with two set of antenna modules; a base station implements an optimized selection of proper collections of the heterogeneous and collaborative trunk nodes respectively for each destination user terminal that needs trunking, selects and determines antennas with proper number for the uplink and the downlink of each terminal, thus being convenient for acquiring self-adaptive diversity and reuse gain; the emission power of each antenna is reasonably set by comprehensively considering the transmission characteristics of the uplink and the downlink, thus ensuring the balance between the transmission performance of the first-hop link and the second-hop link and optimizing the integrative performance of the system. Based on the sufficient consideration of the existing constructions of wireless network frameworks, the invention discloses two set of antennas creatively, which are respectively used as heterogeneous trunk nodes of two-hips link transmission for implementing heterogeneous transmission, thus having the advantages of simple and convenient operation, flexibility, practicability, less investment, good effectiveness and great application generalization prospect.

Description

technical field [0001] The present invention relates to a method for realizing interconnection and intercommunication heterogeneous cooperative transmission in a heterogeneous wireless network by using cooperative relay nodes. Its adaptive selection of the number of antennas and other operations, the method of adaptively applying cooperative diversity and cooperative multiplexing technology to the uplink and downlink in the heterogeneous wireless network to realize the heterogeneous cooperative transmission belongs to the wireless communication technology field. Background technique [0002] At present, the wireless communication system has formed a number of relatively independent networks, including cellular mobile networks of various standards, wireless local area networks, wireless digital home networks, and vehicle-mounted wireless communication systems. The structure of these networks is vertically independent, and the resources of each network are composed in a speci...

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Application Information

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IPC IPC(8): H04B7/02H04B7/04
Inventor 彭木根王文博
Owner BEIJING UNIV OF POSTS & TELECOMM
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