(12) United States Patent ao) Patent No.: Us 7,668,573 B2
Laroia et al. (45) Date of Patent: *Feb. 23,2010
(54) WIRELESS TIMING AND POWER CONTROL
(75) Inventors: Rajiv Laroia, Basking Ridge, NJ (US);
Junyi Li, Bedminster, NJ (US);
Sathyadev Venkata Uppala, Scotch
Plains, NJ (US)
(73) Assignee: QUALCOMM Incorporated, San
Diego, CA (US)
( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days.
This patent is subject to a terminal disclaimer.
(21) Appl.No.: 10/636,506
(22) Filed: Aug. 7, 2003
(65) Prior Publication Data
US 2004/0106431 Al Jun. 3, 2004
Related U.S. Application Data
(63) Continuation-in-part of application No. 10/324,194, filed on Dec. 20, 2002, now Pat. No. 6,788,963, and a continuation-in-part of application No. 10/378,563, filed on Mar. 3, 2003.
(60) Provisional application No. 60/401,920, filed on Aug. 8, 2002.
(51) Int. CI.
(52) U.S. CI 455/574; 455/552.1; 455/450;
455/509; 370/329; 370/343; 370/350; 370/318
(58) Field of Classification Search 455/522.1,
455/574, 552.1, 450, 509; 370/350, 329,
See application file for complete search history.
The use of multiple states of mobile communication device operation to allow a single base station to support a relatively large number of mobile nodes is described. The various states require different amounts of communications resources, e.g., bandwidth. Four supported states of operation are an on-state, a hold-state, a sleep-state, and an access-state. Each mobile node in the on-state is allocated communication resources to perform transmission power control signaling, transmission timing control signaling and to transmit data as part of a data uplink communications operation. Each mobile node in the hold-state is allocated communication resources to perform transmission timing control signaling and is provided a dedicated uplink for requesting a state transition and a shared resource for transmitting acknowledgements. In the sleep state a mobile node is allocated minimal resources and does not conduct power control signaling or timing control signaling. Data may be received in the on and hold states.
44 Claims, 11 Drawing Sheets