Efficient location updates, paging and short bursts
A mobile terminal in a wireless communication network may be one of several modes of operation. When in an idle mode, the mobile terminal may avoid a lengthy random access procedure normally associated with responding to a page from a base station, if the base station includes in the page an indication of a resource that the mobile terminal may utilize when responding to the page. Additionally, the mobile terminal may transmit an efficient location update MAC header to a base station, whether prompted to by a page from the base station or not. Furthermore, without leaving the idle mode or a sleep mode, the mobile terminal may exchange short data burst messages with a base station.
1. At a mobile terminal in a wireless communication system, a method of initiating communication with a base station, said method comprising:
selecting a candidate pseudorandom noise code from a plurality of predefined pseudorandom noise codes;
transmitting said candidate pseudorandom noise code to said base station;
receiving an allocation message from said base station, where said allocation message indicates an allocated resource; and
transmitting a location update Media Access Control header to said base station, where said transmitting said location update Media Access Control header utilizes said allocated resource;
wherein said location update Media Access Control header includes a field for a reduced-length version of a Media Access Control address for said mobile terminal.
2. The method of claim 1 wherein said allocation message is a Code Division Multiple Access allocation information element.
3. The method of claim 1 wherein said allocation message is an uplink map information element.
4. The method of claim 1 further comprising receiving a response to said location update Media Access Control header.
5. The method of claim 4 wherein said response includes a renewed authentication key and said method further comprises transmitting an authentication request message to said base station.
6. A mobile terminal in a wireless communications system adapted to perform the method of claim 1 .
7. The method of claim 1 wherein said field is a first field and said Media Access Control header includes a second field for indicating that said first field has said reduced-length version of a Media Access Control address.
8. The method of claim 7 wherein said first field is a 38-bit field.
9. At a mobile terminal in a mobile communication system, a method of initiating communication with a base station, said method comprising:
receiving a paging message from said base station;
responsive to said receiving said paging message, transmitting a location update indicator message to said base station;
receiving an allocation message from said base station, where said allocation message indicates an allocated resource; and
transmitting a location update Media Access Control header to said base station, where said transmitting said location update Media Access Control header utilizes said allocated resource;
wherein said location update Media Access Control header includes a field for a reduced-length version of a Media Access Control address for said mobile terminal.
10. The method of claim 9 wherein said paging message includes a pseudorandom noise code and said transmitting said location update indicator message comprises transmitting said pseudorandom noise code.
11. The method of claim 9 further comprising receiving a response to said location update Media Access Control header.
12. The method of claim 11 wherein said response includes a renewed authentication key and said method further comprises transmitting an authentication request message to said base station.
13. The method of claim 9 wherein said field is a first field and said Media Access Control header includes a second field for indicating that said first field has said reduced-length version of a Media Access Control address.
14. The method of claim 13 wherein said first field is a 38-bit field.