Method and system for scheduling resources, evolved node B (eNB) and relay node (RN)
A technology for resource scheduling and relay nodes, which is applied in store-and-forward switching systems, network planning, electrical components, etc., can solve problems such as resource conflicts, and achieve the effect of avoiding resource conflicts.
Active Publication Date: 2012-10-03
DATANG MOBILE COMM EQUIP CO LTD
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like figure 2 As shown, in the subframe #n, the UE receives the Physical Downlink Control Channel (PDCCH, Physical Downlink ControlChannel) from the RN, which carries the uplink scheduling information of the RN to the UE in the subframe #n+k, correspondingly, the UE The physical uplink control channel (PUCCH, Physical UplinkControl Channel) and the physical uplink shared channel (PUSCH, Physical UplinkSharedChannel) will be sent to the RN in the subframe #n+k; after the RN sends the PUCCH to the UE, it receives the R-PDSCH sent by the eNB to the RN And R-PDCCH, which carries the uplink scheduling information of eNB to RN in subframe #n+k, correspondingly, RN will send R-PUCCH and R-PUSCH in subframe #n+k; this will lead to In the same subframe, the RN needs to perform both the sending operation for the eNB and the receiving operation for the UE, resulting in resource conflicts
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[0031] Aiming at the problems existing in the prior art, the present invention proposes a brand-new resource scheduling scheme: before the RN initially accesses the network and before the actual communication starts, the eNB configures the resources allocated to the RN for backhaul link uplink The transmitted uplink subframe is notified to the RN, so that in the subsequent process, the RN does not perform uplink scheduling on the UE within the configured uplink subframe, thereby avoiding resource conflict.
[0032] Additionally, using figure 1 Although the manner shown can solve the interference problem, it is not clear how the RN knows which subframe to use as the MBSFN subframe in the prior art. In the solution of the present invention, it may be stipulated that the eNB configures the downlink subframes for downlink transmission of the backhaul link for the RN, and notifies the RN, and then the RN configures the downlink subframes as MBSFN subframes in the existing manner. ...
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The invention discloses a method and a system for scheduling resources. The method comprises the following steps that: an evolved node B (eNB) configures an uplink subframe, which is used for performing uplink transmission of a backhaul link, for a relay node (RN) and notifies to the RN; and the RN receives a notification message and does not perform uplink scheduling on user equipment (UE) in the uplink subframe. The invention also discloses the eNB and the RN. Due to the application of the method, the system and the device, resource conflict can be avoided.
Description
technical field [0001] The present invention relates to mobile communication technology, in particular to a resource scheduling method and system, a base station and a relay node. Background technique [0002] The introduction of the relay node (RN, Relay Node) makes three wireless links appear in the Relay-based mobile communication system, namely: eNB-macro UE direct link (direct link), eNB-RN backhaul link (backhaul link) And RN-relay UE access link (access link), hereinafter referred to as direct link, backhaul link and access link respectively. The transceiver of the RN adopts a time division duplex (TDD, Time Division Dual) working mode, that is, receiving and sending cannot be performed simultaneously. [0003] The backhaul link and the access link can use the same spectrum, but because the RN's transmitter interferes with its own receiver (unless it can provide sufficient isolation for incoming and outgoing signals), the downlink backhaul link and the downlink acces...
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IPC IPC(8): H04L12/54H04W16/26H04W72/12H04W88/08
Inventor 张文健潘学明沈祖康肖国军王立波
Owner DATANG MOBILE COMM EQUIP CO LTD