Method, system and equipment for configuring downlink subframes and receiving downlink data
A sub-line and equipment technology, which is applied in the field of configuring downlink subframes and receiving downlink data, and can solve problems affecting the transmission performance of RN cells
Active Publication Date: 2014-01-15
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology
[0021] A method, system and device for receiving downlink data provided by the embodiments of the present invention are used to solve the problem existing in the prior art that non-MBSFN subframes are configured as backhaul link downlink subframes, which will affect the transmission performance of the RN cell The problem
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[0051] According to the offset value of the downlink transmission timing of the RN device and the downlink reception timing of the RN device, the base station configures some or all subframes from the set of downlink subframes that can be used for backhaul link downlink transmission on the base station side as the backhaul chain downlink subframe, and notify the RN device of the configuration information. Since the base station configures the downlink subframe of the backhaul link according to the offset value of the downlink transmission timing of the RN device and the downlink reception timing of the RN device in the embodiment of the present invention, the problem of configuring the non-MBSFN subframe as the downlink subframe of the backhaul link is avoided. Situation happens.
[0052] The RN device in the embodiment of the present invention sends the offset value of the downlink transmission timing of the access link and the downlink reception timing of the backhaul link t...
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The invention relates to the technical field of wireless communication, in particular relating to a method, system and equipment for configuring downlink subframes and receiving downlink data in order to avoid configuring non-MBSFN (Multicast Broadcast Single Frequency Network) subframes as backhaul downlink subframes and solve the problem in the prior art that the transmission performance of an RN (relay node) cell is affected when the non-MBSFN subframes are configured as the backhaul downlink subframes. The method for configuring the downlink subframes provided by the embodiment of the invention comprises: a base station configures part or all of subframes in a downlink subframe set used for backhaul downlink transmission as the backhaul downlink subframes from a base station side according to the deviants of downlink transmission timing and downlink receiving timing of RN equipment. As the base station configures the backhaul downlink subframes according to the deviants of the downlink transmission timing and downlink receiving timing of the RN equipment, the non-MBSFN subframes are prevented from being configured as the backhaul downlink subframes.
Description
technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method, system and equipment for configuring downlink subframes and receiving downlink data. Background technique [0002] After the LTE-A (Long Term Evolution-Advanced, long-term evolution upgrade) system introduces the Relay (relay) node, the following nodes, interfaces and links are defined, such as Figure 1A as shown, [0003] Nodes include: [0004] Donor-eNB: An eNB that is wirelessly connected to the RN device, abbreviated as DeNB; [0005] Relay-Node: an entity existing between DeNB and UE, abbreviated as RN device; [0006] Relay-UE: UE that directly interacts with RN equipment for data, abbreviated as R-UE; [0007] Macro UE: a UE that directly exchanges data with the DeNB. [0008] Interfaces include: [0009] Un interface: the interface between the RN device and the DeNB; [0010] Uu interface: interface between UE and RN equipment. ...
Claims
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IPC IPC(8): H04W56/00
Inventor 张文健潘学明沈祖康
Owner DATANG MOBILE COMM EQUIP CO LTD