Method of hard handover in a wireless communication system
View Patent ↗The present invention provides a method of wireless communication with a mobile unit and a base station router. The method may include providing, over a first channel, configuration information indicative of a second channel associated with the base station router and the mobile unit. The method may also include providing state information associated with the mobile unit to the base station router.
1. A method of wireless communication involving a mobile unit and a first and a second base station router, comprising:
receiving, at the first base station router from the second base station router, over a first channel, configuration information used by the second base station router to set up a second channel associated with the second base station router and the mobile unit; and
providing, from the first base station router and to the second base station router, state information associated with the mobile unit concurrently with the reconfiguration of the mobile unit to communicate with the second base station router on the second channel.
2. The method of claim 1 , comprising providing from the first base station router and to the second base station router, a request to allocate the second channel to the mobile unit.
3. The method of claim 2 , comprising receiving the configuration information used to set up the second channel in response to providing the request to allocate the second channel.
4. The method of claim 3 , wherein receiving said configuration information comprises receiving at least one of a channelization code and a scrambling code associated with the second channel.
5. The method of claim 1 , comprising providing said configuration information from the first base station router to the mobile unit.
6. The method of claim 5 , wherein providing said configuration information to the mobile unit comprises providing a reconfiguration control message including at least one of a channelization code and a scrambling code associated with the second channel.
7. The method of claim 1 , wherein providing said state information comprises:
determining that the mobile unit has disconnected from the first channel; and
providing said state information in response to determining that the mobile unit has disconnected from the first channel.
8. The method of claim 7 , wherein providing said state information comprises providing said state information substantially before the mobile unit begins communicating using the second channel.
9. The method of claim 1 , wherein providing the state information comprises providing at least one of layer-1 state information, layer-2 state information and layer-3 state information.
10. The method of claim 1 , wherein providing the state information comprises providing physical layer state information.
11. The method of claim 1 , comprising providing uplink and downlink information associated with the mobile unit to the second base station router.
12. A method of wireless communication involving a mobile unit and first and second base station routers, comprising:
receiving at the mobile unit, over a first channel from the first base station router, configuration information indicative of a second channel associated with the second base station router and the mobile unit; and
reconfiguring the mobile unit to communicate with the second base station router over the second channel using the configuration information concurrently with state information associated with the mobile unit being provided to the second base station router by the first base station router.
13. The method of claim 12 , wherein receiving said configuration information comprises receiving at least one of a channelization code and a scrambling code associated with the second channel.
14. The method of claim 12 , wherein receiving said configuration information comprises receiving a reconfiguration control message.
15. The method of claim 12 , wherein reconfiguring to communicate over the second channel comprises maintaining at least one of layer-2 state information and layer-3 state information during the reconfiguration.
16. The method of claim 12 , comprising disconnecting from the first channel in response to receiving the configuration information.
17. The method of claim 12 , comprising providing at least one signal over the second channel substantially after reconfiguring.
18. A method of wireless communication involving a mobile unit and a first and a second base station router, comprising:
receiving a request at the second base station router from the first base station router to allocate a channel to the mobile unit;
providing, to the first base station router from the second base station router, configuration information used to set up the channel;
receiving state information associated with the mobile unit from the first base station router concurrently with reconfiguration of the mobile unit based on the configuration information.
19. The method of claim 18 , wherein providing said configuration information comprises providing at least one of a channelization code and a scrambling code associated with the channel.
20. The method of claim 18 , wherein receiving the state information comprises receiving at least one of layer-1 state information, layer-2 state information and layer-3 state information.
21. The method of claim 18 , wherein receiving the state information comprises receiving physical layer state information.
22. The method of claim 18 , comprising receiving at least one signal from the mobile unit over the channel.
23. The method of claim 18 , comprising receiving uplink and downlink information associated with the mobile unit.
24. The method of claim 18 , comprising providing at least one signal to the mobile unit over the channel.