摘要:
A method and apparatus provides for delivering information to an idle mobile station in a group communication network (100) includes delivering the information to the mobile station in special form, e.g., short data burst (SDB) form, if the information is smaller than a predetermined size limit. In one embodiment, the method and apparatus provides for encapsulating the information inside a frame, forwarding the frame to a server (110) for delivery to the mobile station (102, 104, 106), and causing the server (110) to extract the information from the frame and deliver the information to the mobile station on a forward common channel. In one embodiment, the method and apparatus provides for receiving information for delivery to the mobile station (102, 104, 106), the information being tagged for delivery on a forward common channel, and delivering the information to the mobile station (102, 104, 106) on the forward common channel. In one aspect, the method delivers the information when the mobile station (102, 104, 106) is in idle state with no traffic channel.
摘要:
Method and apparatus for secure transmissions. Each user is provided a registration key. A long-time updated broadcast key is encrypted using the registration key and provided periodically to a user. A short-time updated key is encrypted using the broadcast key and provided periodically to a user. Broadcasts are then encrypted using the short-time key, wherein the user decrypts the broadcast message using the short-time key. One embodiment provides link layer content encryption. Another embodiment provides end-to-end encryption.
摘要:
A communication session between a node seeking network access and a NAS (Network Access Server) is established by having only few exchanges of messages. Upon detecting a physical link between the node and the NAS, the NAS immediately sends an authentication request message to the node. In response, the node sends a request message which includes all parameters options, in addition to responding to the authentication request message, for link configuration and network access control. The NAS then picks and chooses the parameter options and sends back the selected options in a reply message to the node. If the selected options in the reply message meet a threshold, the node straightforwardly transmits user data for network access via the NAS.
摘要:
Methods and apparatus for compression of headers in broadcasting BCMCS services in a wireless communication system are described. Techniques used in BCMCS systems without feedback include sending static context information during BCMCS service initialization for use in a decompressor in a mobile station. Techniques used in BCMCS systems with feedback include receiving feedback from distributed mobile station decompressors and adjusting the broadcasting compressor in response to the feedback. Techniques that reduce the number of operating states in both the compressor and the decompressor are described. Techniques to classify flows so that a reduced number of contexts are used to compress/decompress session packet headers in a push-to-talk service are described.
摘要:
Techniques for minimizing call setup latency are disclosed. In one aspect, a channel assignment message is sent with a flag to direct the use of previously negotiated service parameters. This aspect eliminates the need for service negotiation messages. In another aspect, a channel assignment message is sent with an active set identifier instead of an active set and its parameters. This aspect reduces the transmission time of the channel assignment message. In yet another aspect, call setup without paging is facilitated by a mobile station (106) sending a pilot strength measurement message between active communication sessions, such that a channel assignment message can be used for mobile station terminated call setup without the need for mobile station paging and related messages.
摘要:
Method and apparatus for resolving incompatibilities between system elements in a communication system supporting Mobile Internet Protocol communications. The method providing both forward and backward compatibility between system elements having different versions of a same protocol and/or different protocols. In one embodiment, the method adjusting the number of call registration extensions between system elements.
摘要:
Method and a system for providing signaling in cellular telephone system providing broadcast services to fully integrate broadcast services provided by the cellular telephone systems. The signaling method coordinate interaction between an access network and the subscriber station to allowing the subscriber station to decode the broadcast service, to receive paging messages while receiving the broadcast service, to properly transition between operation states, and other functions known to one of ordinary skills in the art.
摘要:
Method and a system for providing signaling in cellular telephone system providing broadcast services to fully integrate broadcast services provided by the cellular telephone systems. The signaling method coordinate interaction between an access network and the subscriber station to allowing the subscriber station to decode the broadcast service, to receive paging messages while receiving the broadcast service, to properly transition between operation states, and other functions known to one of ordinary skills in the art.