초록 ▼

A method and apparatus for re-establishing an interrupted data packet call on a channel between two transceiving devices in a telecommunications system. In an embodiment of the invention, when packet data has not been sent or received in the call for a predetermined time period, the call is released

A method and apparatus for re-establishing an interrupted data packet call on a channel between two transceiving devices in a telecommunications system. In an embodiment of the invention, when packet data has not been sent or received in the call for a predetermined time period, the call is released and call configuration information is saved in at least one of the transceiving devices. If it is then necessary to transmit further packet data for the call, either one of the transceiving devices may initiate, within a predetermined time period, the sending of a call re-establishment message to re-establish the call. The call re-establishment message includes only necessary information to re-establish the call. Information that is saved upon call release is not sent in the re-establishment message. Information in the re-establishment message is used to retrieve the call configuration information that was saved upon call release. The call is then re-established using the information in the re-establishment message and the retrieved information.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method for re-establishing a packet data call ona channel between a first transceiving device and a second transceiving device, comprising the steps of:sending a first message from the second transceiving device to the first transceiving device, said first message ind

[ What is claimed is:] [1.]1. A method for re-establishing a packet data call ona channel between a first transceiving device and a second transceiving device, comprising the steps of:sending a first message from the second transceiving device to the first transceiving device, said first message indicating that a packet data call is to be released, the message including an identifier value;saving at least the identifier value in the first transceiving device;saving a set of call configuration data and the identifier value in the second transceiving device, the set of call configuration data usable to re-establish a channel between the first transceiving device and the second transceiving device;releasing the packet data call from the channel at the first and second transceiving devices, thereby disabling the packet data call;starting a re-establish timer, the re-establish timer being set to run for a predetermined time period;detecting, at the second transceiving device, additional packet data for the packet data call within the predetermined time period during which the re-establish timer is set to run during said step of starting;sending, in response to detection of the additional packet data during said step of detecting the additional packet data, a second message from the second transceiving device to the first transceiving device, the second message comprising a page message;sending, in response to receiving a page message, a third message from said first transceiving device to said second transceiving device, said third message comprising a call re-establishment message indicating that the packet data call is to be re-established, and including at least the identifier value;retrieving, in response to receiving said third message, the set of saved call configuration data in the second transceiving device based on the identifier value; andre-establishing the packet data call on the channel using the call configuration data retrieved in the step of retrieving to re-establish the packet data call.