Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Reexamination Certificate
2005-08-18
2011-10-04
Karikari, Kwasi (Department: 2617)
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
C455S416000, C455S426100, C455S452100, C455S453000, C455S516000, C455S519000, C455S518000, C455S509000
Reexamination Certificate
active
08032170
ABSTRACT:
The method of present invention is used for addressing a broadcast message in a trunking system, in which said trunking communication system includes a base station and mobile stations. This method includes the following steps: adding a new index of trunking broadcast time slots, with all the mobile stations that support boundless capacity group call service monitoring these trunking broadcast time slots; the base station transmitting the paging message of the boundless capacity group call in the trunking broadcast time slot; and using the group identification as the broadcast address, allowing addressing to the group identification and not a single mobile station. The method of present invention efficiently solves the problem of paging channel capacity limitations of the boundless capacity group call service supported by CDMA trunking telecommunication systems, and greatly shortens the time of group call connection.
REFERENCES:
patent: 2003/0144018 (2003-07-01), Minnick et al.
patent: 2005/0169203 (2005-08-01), Sinnarajah et al.
ZTE, “Signaling Link Access Control (LAC) Standard for cdma2000 Spread Spectrum Systems—Addendum 2,” Oct. 2008, pp. 1-4.
Chen Yanye
Hou Xiaoxia
Liu Xuemin
Zhang Chenguang
Karikari Kwasi
Oppenheimer Wolff & Donnelly LLP
Wrigley Barbara A.
ZTE Corporation
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