摘要:
In a multi-carrier wireless system, potential problems from reconfiguring mobile station resources to accommodate changes in component-carrier configuration are mitigated by inserting a guard period each time the configuration of component carriers changes, so that transceiver reconfiguration can be carried out without interfering with ongoing transmission. A base station is configured to transmit data to a mobile station according to a first configuration of two or more component carriers, to determine that a change of configuration to a second component-carrier configuration is required, and to signal the change of configuration to the mobile station, using the first configuration of component carriers. The base station then refrains from transmitting data to the mobile station during a pre-determined guard interval of at least one transmission-time interval subsequent to the signaling of the change of configuration. After the guard interval, data is transmitted to the mobile station according to the second component-carrier configuration.
摘要:
The present invention relates to a method and apparatus for requesting scheduling of resources to be used for uplink communication of data in a communications system. If the repeated transmission by a user equipment of scheduling requests on an uplink control channel is determined to be unsuccessful, a random access transmission on a random access channel is initiated as a fallback procedure.
摘要:
The present invention relates to wireless communication systems, and more particularly to a method and an apparatus for periodically reporting the buffer status in a wireless communication system. Methods and arrangements for an improved buffer status reporting taking the type of radio bearer configuration into account is provided. This is achieved according to an embodiment of the present invention by taking the type of radio bearer configuration into account when determining the content of the buffer status report sent by the UE to the eNodeB.
摘要:
The invention relates to a method for controlling a bit-rate of a session in a packet-switched communications system where multiple sessions are set-up via a shared resource. A current bit-rate of the session is compared to a bit-rate range valid for the session to determine a distance from the position of the current bit-rate to one of the end-points of the bit-rate range. The current bit-rate is then adapted differently depending on the distance to the selected end-point. By controlling the bit-rate of each session that is set-up via the shared resource for applications that provide delay-sensitive services to users in this way the method and corresponding system and sender-receiver arrangements have the effect that rate adaptations can be distributed among the applications so that users share responsibility for rate adaptations.
摘要:
The invention relates to a method for controlling a bit-rate of a session in a packet-switched communications system where multiple sessions are set-up via a shared resource. A current bit-rate of the session is compared to a bit-rate range valid for the session to determine a distance from the position of the current bit-rate to one of the end-points of the bit-rate range. The current bit-rate is then adapted differently depending on the distance to the selected end-point. By controlling the bit-rate of each session that is set-up via the shared resource for applications that provide delay-sensitive services to users in this way the method and corresponding system and sender-receiver arrangements have the effect that rate adaptations can be distributed among the applications so that users share responsibility for rate adaptations.
摘要:
Methods and apparatus for producing a compressed buffer status report (400) for use in a wireless network are disclosed. In several of the disclosed embodiments, a wireless terminal (160) forms a compressed buffer status report (400) that includes a field (410) of one or more bits that indicate an overall status corresponding to all or substantially all of the uplink data buffers for the wireless terminal (160), along with one or more fields (420) that indicate buffer status for specific corresponding radio bearers or groups of radio bearers. Accordingly, a small buffer report (410) may be sent in-band with the uplink data transmission, such as in headers (810) of one or more MAC packet data units (800), to convey information about the status of the wireless terminal's buffers, both for all the buffers (i.e., collectively), and for each of several high-priority radio bearers or groups of radio bearers.
摘要:
The present invention relates to wireless communication systems, and more particularly to a method and an apparatus for periodically reporting the buffer status in a wireless communication system. Methods and arrangements for an improved buffer status reporting taking the type of radio bearer configuration into account is provided. This is achieved according to an embodiment of the present invention by taking the type of radio bearer configuration into account when determining the content of the buffer status report sent by the UE to the eNodeB.