Zte Corporation

Ping Zeng

Bo Dai

Zhisong Zuo

Xin Wan Wu

Xin Wu

Guanghui Yu

A method and an apparatus for transmitting uplink transmission power control information are disclosed. The method includes: transmitting uplink transmission power control information of all uplink component carriers allocated to a user equipment (UE) to the UE by one downlink component carrier. By adopting the above technical scheme, it is implemented that the uplink transmission power control information is transmitted in a carrier aggregation system.

Method and device for transmitting uplink transmission power control information

A method for transmitting control format indicator values includes RRC configuring CFI values and transmitting signalings related thereto with one of multiple modes. The modes include configuring one RRC signaling for each component carrier which can be cross-carrier scheduled for user equipment, to indicate a CFI value of each subframe of said component carrier; configuring one RRC signaling respectively for each of subframe types designated by all component carriers which can be cross-carrier scheduled for user equipment, to indicate a CFI value of each designated subframe type; configuring one RRC signaling respectively for each designated subframe type of each component carrier which can be cross-carrier scheduled for user equipment, to indicate a CFI value of each subframe type designated; and configuring one RRC signaling for each user equipment for which cross-carrier scheduling can be performed, to indicate the CFI values of all component carriers which can be cross-carrier scheduled.

Method and device for transmitting control format indicator value

The present invention discloses a method and a system for non-periodic feedback in a carrier aggregation scenario. The method comprises: a base station sending a non-periodic trigger signaling to a piece of User Equipment (UE); the UE receiving the non-periodic trigger signaling, and determining a Downlink Component Carrier (DL CC) requiring feedback according to the non-periodic trigger signaling; the UE triggering a non-periodic feedback of the determined DL CC. With the present invention, the problem that it is impossible to determine which downlink component carrier is to be fed back according to the non-periodic trigger signaling in the carrier aggregation scenario is solved, uplink feedback of the DL CC that is unnecessary to be fed back is effectively reduced, the base station can adjust resource allocation according to information fed back by the UE, and the performance of downlink data transmission is ensured.

Method and system for non-periodic feedback in carrier aggregation scenario

The present invention provides a method and device for detecting downlink control information, which relates to the communication field. The method includes: during cross carrier scheduling, the user equipment (UE) determines a search space for monitoring a physical downlink control channel (PDCCH) according to the number of downlink component carriers in a PDCCH Monitoring Set and the number of downlink component carriers in a UE DL Component Carrier Set.

Method and device for detecting downlink control information

The present invention discloses a method for detecting downlink control information, including: when scheduling across carriers is enabled, determining by user equipment (UE) user-specific search space monitoring a physical downlink control channel (PDCCH) according to component carrier indexes, wherein the component carrier indexes include component carrier indexes corresponding to various component carriers implementing scheduling across carrier and being scheduled across carriers. Also the present invention also provides an apparatus for detecting downlink control information, a user equipment and a network side device. The present invention solve the overlap problem of common search space and user-specific search space in Release 10 and solves the problem of determining a search space for the PDCCH in the situation of scheduling across carriers is enabled in Release 10.

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Shenzhen, China

Ping Zeng