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Method, equipment and system for configuring frame structure of backhaul link

A structure configuration and backhaul link technology, applied in the field of communication, can solve the problems that the LTE TDD frame structure cannot be adapted, is not a frame structure configuration, and cannot meet the HARQ timing relationship, etc.

Active Publication Date: 2011-03-30
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0009] Since there is no Relay node in the existing LTE system, when the Relay node is introduced into the system, the existing LTE TDD frame structure cannot be adapted to the system with the Relay node, and any semi-static configuration of the relay link In the uplink and downlink subframes, there will be many configurations of the frame structure, among which a large part of the configuration of the frame structure will affect the HARQ (Hybrid AutoRepeat Request, hybrid automatic repeat request) timing relationship of the access link, That is, the timing relationship of HARQ cannot be satisfied, and it is not a suitable frame structure configuration

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  • Method, equipment and system for configuring frame structure of backhaul link

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Embodiment Construction

[0118] The following will clearly and completely describe the technical solution of the present invention in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0119] As the background technology, in the prior art, no suitable backhaul link frame structure is designed for the relay node, but in the embodiment of the present invention, by comprehensively considering the timing relationship of HARQ in the system, an appropriate backhaul link frame structure is designed for the system .

[0120] In the LTE-A system, RN (Relay Node, relay node) will be introduced. The characteristics of the RN include but are not limited to: RN controls the ce...

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Abstract

The invention discloses a method for configuring the frame structure of a backhaul link, which comprises that: relay equipment receives the configuration, with priority, of the frame structure of the backhaul link from network side equipment; the relay equipment determines an uplink sub-frame and a downlink sub-frame of the backhaul link according to the configuration of the frame structure of the backhaul link; and the relay equipment communicates with the network side equipment by using the uplink sub-frame and the downlink sub-frame of the backhaul link. In the method, the frame structure of the backhaul link is configured according to the frame structure in an access link, so the influence of the frame structure of the backhaul link on the timing relationships of conventional hybrid auto repeat requests (HARQ) is minimized, the timing requirements of the conventional HARQ are met and different frame structures of the backhaul link can be selected according to application needs.

Description

technical field [0001] The present invention relates to the technical field of communications, and in particular to a method, device and system for configuring a frame structure of a backhaul link. Background technique [0002] LTE (Long Term Evolution, long-term evolution) system is the evolution of 3G (3rd Generation, third-generation mobile communication system). LTE improves and enhances the air access technology of 3G, and adopts OFDM (Orthogonal Frequency Division Multiplexing, orthogonal frequency Multiplexing) and MIMO (Multiple Input Multiple Output) are the only standards for wireless network evolution. Among them, LTE can provide a peak rate of downlink 100Mbit / s and uplink 50Mbit / s under 20MHz spectrum bandwidth, which improves the performance of cell edge users, increases cell capacity, and reduces system delay. [0003] However, there is no Relay (relay) node in the existing LTE system, and the frame structure in the TDD (Time Division Duplexing, Time Division...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/00
Inventor 张文健潘学明王立波沈祖康
Owner DATANG MOBILE COMM EQUIP CO LTD
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