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149results about How to "Guaranteed smooth reception" patented technology

Method for transmitting/receiving data in wireless communication system and base station for same

In the present invention, a method for transmitting/receiving data in a wireless communication system supporting carrier aggregation/multiple cells and a base station for same are disclosed. More particularly, the method comprises: receiving from the e Node B through a physical downlink control channel (PDCCH) of a first cell resource allocation information, which is set as a flag value indicating uplink resource allocation information, when performing cross-cell scheduling on a second cell through a first cell, according to an uplink-downlink configuration of the first cell from a plurality of cells which are set to a user equipment; determining the resource allocation information as a downlink resource allocation information, when the resource allocation information is received from a subframe perspective in which an uplink transmission time is not defined, based on the uplink-downlink configuration of the second cell; receiving the uplink resource allocation information from the e Node B via a physical downlink shared channel (PDSCH), according to the downlink resource allocation information; and transmitting to the e Node B via a physical uplink shared channel (PUSCH) of the second cell uplink data, according to the uplink resource allocation information.
Owner:LG ELECTRONICS INC

Processing method and system for uplink data retransmission

The invention discloses a processing method and a processing system for uplink data retransmission. In the scheme of the invention, a plurality of eNBs collaborate to perform CoMP uplink transmission and UE performs the uplink data retransmission according to the instruction of the eNB when the uplink data retransmission is needed; when receiving uplink scheduling information related to the retransmission transmitted by the serving eNB, the non-serving eNB receives the retransmission uplink data of the UE and transmits the data to the serving eNB; and when not receiving the uplink scheduling information related to the retransmission transmitted by the serving eNB, the non-serving eNB does not perform the operation related to the uplink data retransmission. The method has the advantages of making the behaviors of the serving eNB and the non-serving eNB clear, smoothly receiving the retransmission uplink data, solving the problem of the uplink data retransmission during the CoMP uplink transmission of the plurality of collaborative eNBs well, and adapting to the various special uplink data transmission scenes, along with no need of alteration of the uplink data transmission behavior on the UE side, easy implementation, and less required alteration of the LTE system.
Owner:ZTE CORP
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