Method and device for controlling downlink subframe and transmitting data of trunk link

A relay link and transmission method technology, applied in the field of third-generation mobile communications, can solve problems such as lack of mature solutions

Active Publication Date: 2010-10-20
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0012] In the current LTE-A system design, only such figure 1 The resource division framework of each link sho

Method used

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  • Method and device for controlling downlink subframe and transmitting data of trunk link
  • Method and device for controlling downlink subframe and transmitting data of trunk link
  • Method and device for controlling downlink subframe and transmitting data of trunk link

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Embodiment approach

[0047] R-PCFICH as described above can only indicate the values ​​of N and M. The position of the RB of the R-PDCCH cannot be indicated. In a preferred implementation manner, the position of the RB of the R-PDCCH may be semi-statically notified to the relay node through upper layer signaling. For example, the base station notifies the relay node of the midpoint position of the R-PDCCH in the frequency domain through high-layer signaling. In another implementation manner, the position of the RB of the R-PDCCH may be a fixed position in the system. The size of the R-PDCCH in the frequency domain (that is, the value of M) is indicated by the R-PCFICH.

[0048] figure 2 A schematic diagram showing distribution of data and signaling of a downlink backhaul subframe in a time domain and a frequency domain according to an embodiment of the present invention. Such as figure 2 As shown, the R-PDCCH is immediately behind the PDCCH in time. Since the relay node needs to send contr...

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Abstract

The invention discloses a method for controlling downlink subframe and transmitting data of a trunk link. The method comprises the following steps that: a base station transmits a relay physical control format indicating channel (R-PCFICH) to a trunk node, wherein the R-PCFICH indicates the number N of orthogonal frequency division multiplexing (OFDM) symbols and the number M of resource blocks occupied by a relay physical downlink control channel (R-PDCCH); the base station transmits control information to the trunk node on the relay physical downlink control channel (R-PDCCH); and the base station transmits data to the trunk node on a relay physical downlink shared channel (R-PDSCH). The invention also discloses base station equipment and the trunk node for implementing the method. The method and the device provide a particular scheme for data on the trunk link and signaling multiplexing control, and the scheme meets the design requirement of an LTE-A system, and can be compatible with the conventional 3GPP Rel-8 system.

Description

technical field [0001] The present invention relates to the technical field of the third generation mobile communication, in particular to a control and data multiplexing method and device for downlink subframes of a relay link. Background technique [0002] In the 3GPP Long Term Evolution LTE-Advanced (LTE is the abbreviation of Long Term Evolution, which is the evolution system of the third generation mobile communication system, the LTE-Advanced system is an upgrade of the LTE system, abbreviated as LTE-A) system, will adopt the The method of relay (Relay) cooperative transmission improves the service quality of cell edge users and expands cell coverage. In a relay system, a user equipment (UE) directly served by a base station (eNB) is called a macro UE (Macro UE), and a UE directly served by a relay node (Relay Node, RN) is called a relay UE (Relay UE). ). From the current research and discussion progress, the design target is half-duplex and in-band (In-band) relay. ...

Claims

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Application Information

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IPC IPC(8): H04W72/12H04W72/14H04L27/26H04W88/08
Inventor 沈祖康潘学明丁昱
Owner DATANG MOBILE COMM EQUIP CO LTD
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