Abstract:
PROBLEM TO BE SOLVED: To provide a method for setting up a session initiation protocol exchange between a wireless communication device and a network. SOLUTION: The method includes the steps of: requesting a channel; receiving an allotment; transmitting a request for connection management service; receiving an authentication request; receiving a ciphering mode command; transmitting a ciphering mode completion; determining whether an associated control channel is set up; transmitting a packet resource request in a dedicated control channel to make it possible to transmit, through the dedicated control channel, a message related to setting of the session initiation protocol exchange as a result of determination that the associated control channel is not set up; transmitting a packet control acknowledgement; and transmitting an SIP message through the associated control channel. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
A communication system for exchanging session initiation protocol signaling messages between a user host associated with a wireless communication device, and a remote user host, through a network, and method therefor. A multiplexer module positioned within the wireless communication device multiplexes call control data, session initiation protocol commands, and packet data setup and status transmitted between the wireless communication device and the network. A control module located in the multiplexer determines whether a packet associated control channel has been set up, and, in response to the packet associated control channel not being set up, the multiplexer module utilizes a slow dedicated control channel for transmitting signaling associated with requesting a packet associated control channel for transmitting the session initiation protocol commands.