Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Patent
1996-12-19
1999-07-06
Hsu, Alpus H.
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
375200, 455436, H04Q 700
Patent
active
059205490
ABSTRACT:
A wireless communication device (100) can be handed off while operating in the slotted mode of a CDMA system. The wireless communication device comprises a receiver searcher (109) that measures the signal strength of an active pilot prior to the assigned slot and at least one of a plurality of neighbor pilots during an assigned slot. Receiver fingers (107) demodulate a Paging Channel of the active pilot during an assigned slot and can also determine signal strength of pilots simultaneously with the receiver searcher. A Hot Neighbor List is used to prioritize the order in which neighbor pilots are scanned. A logic and control circuit (113) determines if neighbor pilots should be scanned beyond the assigned slot, if the Hot Neighbor List should be modified, and if the wireless communication device should be handed off to another pilot.
REFERENCES:
patent: 5101501 (1992-03-01), Gilhousen et al.
patent: 5109390 (1992-04-01), Gilhousen et al.
patent: 5267261 (1993-11-01), Blakeney, II et al.
patent: 5392287 (1995-02-01), Tiedemann, Jr. et al.
patent: 5490165 (1996-02-01), Blakeney, II et al.
patent: 5509015 (1996-04-01), Tiedemann, Jr. et al.
patent: 5561618 (1996-10-01), Dehesh
patent: 5577022 (1996-11-01), Padovani et al.
patent: 5640414 (1997-06-01), Blakeney, II et al.
patent: 5754583 (1998-05-01), Eberhardt et al.
European Telecommunication Standard, European Digital Cellular Telecommunications System (Phase 2); Radio Subsystem Link Control (GSM 05.08), European Telecommunication Standards Institute, Aug. 1995, pp. 1-17.
TIA/EIA Interim Standard, Mobile Station-Base Station Compatibility for Dual-Mode Wideband Spread Spectrum Cellular System,TIA/EIA/IS-95-A, May 1995, pp. 6-61 to 6-64, 6-81 to 6-90, 6-171 to 6-176, and 7-21 to 7-26.
Bruckert Eugene J.
Vilmur Richard J.
Hsu Alpus H.
Kordich Donald C.
Motorola Inc.
Nguyen Kim T.
Williams Lalita P.
LandOfFree
Method of handing off and a wireless communication device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of handing off and a wireless communication device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of handing off and a wireless communication device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-904763