
US Patent No: 7,746,830
Number of patents in Portfolio can not be more than 2000
System and method for maintaining wireless channels over a reverse link of a CDMA wireless communication system
Stats
-
Jun 29, 2010
Issued date -
Jul 18, 2005
filing date -
11/183,520
serial no -
In Force
status
Importance
Abstract
A subscriber access unit includes a transceiver for providing wireless communication of digital signals. The digital signals are communicated to a base station using at least one radio frequency (RF) channel via Code Division Multiple Access (CDMA) modulated radio signals defined by orthogonal codes. Orthogonal subchannels are made available by the base station within each CDMA RF channel. A bandwidth manager is connected to the transceiver, and when the transceiver is actively sending data, at least one orthogonal subchannel is allocated by the base station on an as-needed basis. The number of orthogonal subchannels being allocated changes during a given session. The transceiver, when powered on but not actively sending data, provides an idling mode connection on a reverse link. The idling mode connection is based on an orthogonal subchannel shared with at least one other subscriber access unit, but utilizes different time slots of the shared orthogonal subchannel.
First Claim
Related Publications
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art
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| 5,758,288 Signal time of arrival position determining method for calculating cellular telephone billing charges | 110 | 1997 | |
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| 6,243,372 Methods and apparatus for synchronization in a wireless network | 76 | 1996 | |
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| 5,130,983 Method of polling to determine service needs and the like | 101 | 1990 | |
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| 5,825,807 System and method for multiplexing a spread spectrum communication system | 129 | 1995 | |
| 2001/0039,191 Method for transmitting a text message | 44 | 2000 | |
Patent Citation Ranking
Maintenance Fees
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