Medium access control layer for packetized wireless systems
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United States of America Patent
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Mar 11, 2003
Grant Date -
N/A
app pub date -
Jul 27, 1999
filing date -
Jul 27, 1999
priority date (Note) -
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Abstract
An arrangement where, in addition to the control channels that are used to set up sessions, there is a logically and physically separate and independent set of control channels that can be used as session control channels. Illustratively, the physical GSM frame arrangement that employs 8 logical slots is used, with one slot both in the uplink and downlink dedicated to these separate control channels. In the downlink, such a control channel provides channel grant information, requests to make and transmit power measurements, poll mobile units, etc. In the uplink, such a control channel can be used to request access to a traffic channel, to report on power measurements, to request special hand-off handling, to respond to polling, etc. Because the uplink session control channel does not need to carry a significant amount of information, the GSM slot can be divided into minislots, with each minislot constituting a session control channel for a group of mobile units.
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Patent Owner(s)
| Patent Owner | Address | |
|---|---|---|
| AT&T CORP | 32 AVENUE OFTHE AMERICAS NEW YORK NY 10013-2412 |
International Classification(s)
Inventor(s)
| Inventor Name | Address | # of filed Patents | Total Citations |
|---|---|---|---|
| Chang, Li Fung | Holmdel, NJ | 101 | 1569 |
| Chawla, Kapil K | Middletown, NJ | 19 | 727 |
| Chuang, Justin C | Holmdel, NJ | 18 | 1146 |
| Qiu, Xiaoxin | Bridgewater, NJ | 56 | 1243 |
| Sollenberger, Nelson R | Tinton Falls, NJ | 74 | 2067 |
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| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
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