摘要:
In a method and mobile station for transmitting speech data over a packet data connection a number of speech data frames are bundled into to a bundled frame, which is transmitted over a packet data connection. Hereby the time when the transmitter needs to transmit can be reduced which in turn will reduce the energy required for transmitting speech data. Hereby the battery life time can be increased. The bundling in accordance with the present invention can advantageously be used when transmitting speech data over a High Speed Packet Access. HSPA. connection.
摘要:
In packet communications that utilize header compression/decompression, relatively fast and reliable header compression context updates can be accomplished with relatively low overhead by: sending anticipatory context update requests before decompressor context invalidation is detected; sending redundant context update requests; and sending redundant context updates. Transmission parameters (N, F, Kp, R) associated with both context update requests and context updates can be controlled appropriately to improve their chances for delivery, and needless context update requests can be identified and ignored at the header compression side (15).
摘要:
The present invention relates to a method of reducing setup delay for an uplink message from a user terminal (UT) in a delay sensitive service in a radio telecommunications system, such as a push-to-talk over Cellular (PoC), by predicting that delay sensitive data is about to be transmitted, sending, as a response to the prediction, a connection setup signal from the terminal to a basestation subsystem (BSS) in order to set up an early uplink radio connection, and transmitting the delay sensitive data via the early uplink connection. There is also provided a user terminal (UT) and a radio telecommunications system.