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Data transmission method in wireless relay system, wireless relay system and base station

A data transmission method and a wireless relay technology are applied in the field of wireless relay systems and a base station

Inactive Publication Date: 2012-05-23
POTEVIO INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, even if the QoS of the service flow carried by Tunnel#2 and Tunnel#1 is the same, BS and RS1 can only process Tunnel#2 and Tunnel#1 separately, and cannot fully utilize the characteristics of the same QoS of different service flows to reduce the Control signaling overhead on the relay link from BS to RS 1

Method used

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  • Data transmission method in wireless relay system, wireless relay system and base station
  • Data transmission method in wireless relay system, wireless relay system and base station
  • Data transmission method in wireless relay system, wireless relay system and base station

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Embodiment Construction

[0038] Aiming at the problems existing in the prior art, the present invention proposes a data transmission scheme in a wireless relay system, that is, when a new service flow is established, the BS receives a service establishment request, and according to the transmission path of the service flow, sends the The QoS parameters of the service flow are added to the QoS parameters of the QoS set of each hop relay link in the transmission path. The QoS set refers to the same QoS set as the QoS of the service flow, and the service flow will be added The number of the QoS set of QoS parameters and the QoS parameters are notified to each control node on the transmission path; when performing data transmission, each control node schedules its own QoS sets, and sends control commands to the sending node; the sending node according to The received control command determines the data transmission mode of each QoS set of its own and performs data transmission; the receiving node receives ...

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Abstract

The invention discloses a data transmission method in a wireless relay system, the wireless relay system and a base station (BS). The method comprises that: a BS receives a service establishment request, adds the quality-of-service (QoS) parameter of a service flow into QoS parameters in a QoS collection in each hop of a relay link according to a service flow transmission path and notifies each control node of the code of the QoS collection in which the QoS of the service flow is added and the QoS parameter, wherein the QoS collection refers to a QoS collection having the same QoS with the service flow; each control node schedules self QoS collection and transmits a control command to a transmission node; the transmitting node determines the data transmission mode of a self QoS collectionand performs data transmission according to the control command; and the receiving node receives data from the transmitting node, extracts data packets of different service flows from the data, and distributes the data packets to a cache. The method, the system and the device of the invention can reduce the control signal expense of the relay link.

Description

technical field [0001] The invention relates to relay technology, in particular to a data transmission method in a wireless relay system, a wireless relay system and a base station. Background technique [0002] Relay is an important technology that may be used in International Mobile Telecommunications-Advanced (IMT-Advanced, International Mobile Telecommunications-Advanced) systems, and is mainly used to increase system coverage or increase capacity. When a relay node (RS, Relay Station) is introduced into the network, the wireless link on the access network side will be divided into two types, namely: access link (Access-Link) and relay link (Relay- Link). Among them, the access link refers to the wireless link starting or ending at the mobile terminal (MS, Mobile Station); the relay link refers to the wireless link between the base station (BS, Base Station) and the RS or between the RS and Wireless link between RSs. The access link is similar to the existing system, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/06H04W28/24H04W72/08H04W72/54
Inventor 路杨
Owner POTEVIO INFORMATION TECH CO LTD