384 results about "Downlink scheduling" patented technology

The invention provides a method for sending and detecting downlink control information, a base station carries the downlink control information in a physical downlink control signal channel, the physical downlink control signal channel is sent through a component carrier, wherein the base station carries the first type of downlink control information on the main component carrier and carries the third type of downlink control information on the first component carrier, the first type of downlink control information carries uplink and / or downlink scheduling information and / or uplink power control information of the component carrier in which the first type of downlink control information is located, the second type of downlink control information carries uplink and / or downlink scheduling information of one or a plurality of component carriers, and the third type of downlink control information carries indication information of the second type of downlink control information. A terminal detects the first type of downlink control information on the main component carrier and detects the third type of downlink control information on the first component carrier. The method has better scheduling flexibility, compatibility and error code performance, lower blind detection times and lower signaling cost.

The present invention aims at avoiding code limitation in a CDMA cellular mobile communication network without decrease in data transmission quality. This object is achieved through a method of scheduling a transfer of data to at least one user in a cellular mobile communication network where the transfer of data is achieved via downlink channels using codes selected from a plurality of code trees. In a first step of the method a plurality of requests (*) to access downlink channels are received until the beginning of a scheduling time interval. In a second step permissions to access downlink channels ( ) are coordinated according to the assignment of downlink channels to the different code trees (A, B).

The invention discloses a configuration method and device of downlink scheduling information so as to control the time of blind detection in a multi-carrier system. The configuration method comprises the following steps of: allocating a downlink carrier set and an uplink carrier set for a terminal for sending a service request by a base station; and selecting at least a member carrier from the downlink carrier set as the member carrier of a PDCCH (Physical Downlink Control Channel) activation carrier set according to the bandwidth information of each carrier of the system, obtained type information of the terminal, currently received channel quality information fed back by the terminal, transmission modes distributed for each member carrier in the downlink carrier set and the uplink carrier set and a determined carrier scheduling mode of the terminal, wherein the time provided by PDCCH activation carrier set for PDCCH blind detection for uplink and downlink scheduling of the terminal is no more than that of the maximum blind detection of each sub-frame supported by the terminal in the type information of the terminal.

The invention allows flexible disabling / enabling of cross-carrier scheduling in carrier-aggregated wireless data transmission. In response to detecting a predetermined disabling indication of cross-carrier scheduling of received carrier aggregated wireless data transmission, the disabling indication targeting subframes allocated to uplink in a first component carrier transmitted from a cross-carrier scheduling cell and to downlink in a second component carrier transmitted from a cross-carrier scheduled cell: a downlink control region in the targeted subframes in the second component carrier is monitored for uplink / downlink grants; and in response to detecting an uplink / downlink grant, the detected uplink / downlink grant is utilized in uplink / downlink scheduling of the targeted subframe in the second component carrier.