Method and apparatus for providing dispatch service in a CDMA communication system
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United States of America Patent
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Feb 11, 2003
Grant Date -
N/A
app pub date -
Nov 19, 1999
filing date -
Nov 19, 1999
priority date (Note) -
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Abstract
The present invention addresses the need for an apparatus and method for providing dispatch group and individual call services on a CDMA communication system. Generally, the present invention discloses modifications to the IS-95 CDMA standard such as substituting a dispatch identifier (e.g., 201) for the Electronic Serial Number (ESN) used to generate CDMA long-code masks (e.g., 211). In the present invention, transmitted voice information is encoded using a long-code mask thus derived. In addition, a dispatch identifier is used to determine (306 and 404) the appropriate paging resource for transmitting and receiving dispatch call pages.
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