71results about How to "Satisfy quality of service" patented technology

A method for transmitting uplink data according to a dynamic resource request is disclosed. The method includes confirming, at a mobile station, whether a service type for a bandwidth request is sensitive to delay, if the service type is not sensitive to delay, shifting a phase of a fast feedback channel and transmitting the phase-shifted fast feedback channel, if the service type is sensitive to delay or if a bandwidth request grant message corresponding to the phase-shifted fast feedback channel is received from a base station, transmitting a bandwidth request information corresponding to the service type to the base station, and upon receiving an uplink grant message for an uplink resource according to the bandwidth request information from the base station, transmitting data though the uplink resource. As a result, collision does not occur during a resource request, quality of service (QoS) of a real-time traffic sensitive to delay can be satisfied, an uplink allocation request procedure is dynamically changed according to a service type, thus reducing message overhead, and a resource can be efficiently used according to a characteristic of a service provided to the mobile station.

A timeslot selection method is provided. The timeslot selection method includes the steps of: obtaining a propagation loss; receiving an occupation state and an interference amount of an uplink timeslot; obtaining a desired wave power from the propagation loss; obtaining a ratio between the desired wave power and the propagation loss for the uplink timeslot in which the occupation state is idle; and selecting the transmitting timeslot by using the ratio. In addition, a timeslot assignment method in which there are a plurality of TDD boundaries each of which is a boundary between at least an uplink timeslot and at least a downlink timeslot in a frame is provided. Furthermore, a timeslot assignment method is provided, in which assignment is carried out according to a service class included in a QoS request.

An apparatus for facilitating handover failure recovery may include a handover management element configured to receive, at a target node, a handover request from a source node regarding the handover of communications with a mobile terminal. The handover request may include identity information indicative of the mobile terminal. The identity information may be the identity information used to identify the mobile terminal to the source node during establishment of the original connection between the source node and the mobile terminal. The handover management element may be further configured to receive a request for a connection from the mobile terminal subsequent to a radio link failure and prior to handover completion. Based on matching the identity information from the request for connection and the identity information received from the source node, the target node may establish communication with the mobile terminal based on access stratum configuration information used by the source node.

The present invention provides an apparatus and method for receiving and transmitting high-speed packet data without path loss in mobile communication having multiple receiving and transmitting antennas. In order to support high-speed data for a mobile station (MS), a base station (BS) recognizes a correlation between the number of transmit antennas and the number of receive antennas using feedback information, and determines whether to establish a relay transmission scheme. When the number of transmission antennas according to the established relay transmission scheme is greater than the number of reception antennas, the BS determines whether quality of service for the MS is satisfied. When the quality of service for the MS is not satisfied, the BS transmits high-speed data through a specific node group close to the MS.