Method in a wireless code division multiple access communication

Details Method in a wireless code division multiple access communication Method in a wireless code division multiple access communication

1997-02-28

1999-03-02

Pham, Chi H.

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

370342, 370337, 455515, H04B 7216, H04B 7212

Patent

active

058780386

ABSTRACT:
The method operates in a wireless code division multiple access (CDMA) communication system (10) which includes a fixed communication unit (114). The fixed communication unit has a plurality of paging channels (230, 235) and a plurality of traffic channels (245, 247). A mobile communication unit (320) is responsive to the fixed communication unit via an active paging channel of the plurality of paging channels. The method includes selecting a paging channel of the plurality of paging channels over which to transmit the message to form a selected paging channel (410); transmitting a preliminary message via each of the plurality of paging channels (415), the preliminary message comprising the selected paging channel; and transmitting the message over the selected paging channel (425), the mobile communication unit receiving the message over the selected paging channel while continuing to monitor the active paging channel.

REFERENCES:
patent: 4870408 (1989-09-01), Zdunek et al.
patent: 5570467 (1995-06-01), Sawyer
patent: 5603081 (1993-11-01), Raith et al.
patent: 5640396 (1995-09-01), Cudak et al.
Harri Honkasalo, "High Speed Data Air Interface", Submission to CDMA Development Group by Nokia (1996), specifically sec. 3.1.3.
TR-45 "Short Message Services for Wideband Spread Spectrum Cellular Systems", published as TIA/EIA/IS-637, Dec. 7, 1994, specifically Sec. 2.4.1.2.

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