| 摘要 |
A communications device establishes a communications context for communicating data packets using a packet communications bearer from the communications device via the mobile communications network. A controller of the communications device i s configured to identify that the communications device can enter a stasis state because no data packets are available for transmission for a predetermined time via the packet communications bearer or there are no data packets to receive via the packet communications bearer, to transmit a stasis state message to the mobile communications network, and to store information relating to the communications context associated with the packet communications bearer in a data store. The stored information can be used by the controller to re¬ establish the packet communications bearer to transmit and/or receive data packets using the packet communications bearer, the communications device thereby entering the stasis state. As such there is an improvement in the use of communications resources and processing because the communications context and packet communications bearer is retained during periods in which there are no data packets for transmission or reception, so that there is a saving in signalling transmitted and received by the communications device which would be required to re-establish the communications context and an associated packet communications bearer for communicating data packets, when the data packets are available to transmit. |
