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A system and method for wireless transfer communication

A technology of wireless communication and communication system, applied in the field of wireless relay communication system, can solve the problems of high cost, complex structure, mutual interference, etc.

Active Publication Date: 2014-11-05
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] 1. RS needs to have two sets of FDD wireless transceivers, the structure is complex and the cost is high
[0013] 2. In the FDD communication mode, network system communication may exist such as image 3 Mutual interference of the 4 cases shown in (a)-(d)

Method used

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  • A system and method for wireless transfer communication
  • A system and method for wireless transfer communication
  • A system and method for wireless transfer communication

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Embodiment Construction

[0108] The present invention provides a wireless relay communication system and method. In the wireless relay communication system, the communication system models of RS, BS, and MS / SS are as follows: Figure 4 , Figure 5 with Image 6 as shown, Figure 4 For the case of downlink single RS, Figure 5 For the case of uplink single RS, Image 6 Then it is the case of multiple RSs. In this communication system model, RS and BS, MS / SS adopt FDD / TDM (time division multiplexing) / TDMA (time division multiplexing access) to communicate.

[0109] BS downlink and RS uplink use frequency f1, BS uplink and RS downlink use frequency f2; RS accesses BS as a MS / SS, and MS / SS accesses BS through wireless transfer through RS. In FDD mode, network system communication exists such as Figure 7 Mutual interference of the 4 cases shown in (a)-(d). Wherein, TX represents a transmitting module, and RX represents a receiving module.

[0110] For the convenience of subsequent description, in ...

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Abstract

The invention relates to a wireless relay communication system and method. The system of the present invention includes a BS (base station), an RS (transfer station) and a user terminal, and the method mainly includes: respectively setting a downlink transfer area and an uplink transfer area in the downlink subframe and the uplink subframe of the BS physical layer frame structure , set the downlink transfer area in the uplink subframe of the physical layer frame structure of the FDD wireless receiver of the RS, which is used to define the transfer data time slot of the RS receiving the downlink transfer area of ​​the BS, and set the downlink transfer area in the physical layer frame of the FDD wireless transmitter of the RS The uplink transit area is set in the downlink subframe of the structure, which is used to define the transit data time slot of the RS receiving the BS's uplink transit area; the uplink and downlink physical layers of the BS and RS based on the settings between the BS, the RS and the user terminal Frame adopts FDD way to carry on wireless transfer communication. The present invention can realize relay communication of RS based on a single FDD wireless transceiver in a communication system, effectively ensure relay communication between RS, BS and user terminal, and effectively avoid various possible interferences.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a wireless relay communication system and method. Background technique [0002] IEEE802.16 is the first broadband wireless access standard, which mainly includes two versions: one is the 802.16 standard broadband fixed wireless access version 802.16-2004, and the other is the 802.16 standard broadband mobile wireless access version 802.16e . Only two network elements are defined in the 802.16-2004 standard, specifically BS (base station) and SS (subscriber station); in the 802.16e standard, only two network elements are also defined, specifically BS and MSS (mobile subscriber station). stand). [0003] At present, 802.16Multihop Relay SG (802.16 Multihop Relay Research Group) only proposed the concept of RS (Relay Station) for WiMAX (Global Interoperability of Microwave Access). The relay communication entity of the BS, thereby expanding the coverage of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/15H04B7/26
Inventor 郑若滨
Owner HUAWEI TECH CO LTD