US Patent No: 6,993,001
Number of patents in Portfolio can not be more than 2000
Modular base station with variable communication capacity
Stats
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Jan 31, 2006
Issued date -
Mar 17, 1999
filing date -
09/646,371
serial no -
In Force
status
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Abstract
The present invention provides a base station architecture that is modular in configuration, lowering the initial cost of implementing a new CDMA telecommunication system for a defined geographical region while allowing for future capacity. The scalable architecture is assembled from a digital base station unit that is configured to support a plurality of simultaneous wireless calls connecting to a conventional public switched telephone network. For initial startup, two base station units are deployed for redundancy in case of a single failure. Additional base station units may be added when the need arises for extra traffic capacity. If sectorization is required, the base station units may be directionally oriented. Coupled to and remote from each base station unit are two amplified antenna modules that contain an omni-directional or an external directional antenna, a high power RF amplifier for transmitted frequencies and a low noise amplifier for received frequencies. A separate power supply module capable of supporting two base station units provides continued service in the event of a mains power outage.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 6,018,521 Network interface subsystem for use in an ATM communications system | 38 | 1996 | |
| 6,173,005 Apparatus and method for transmitting signals in a communication system | 77 | 1997 | |
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| 6,498,785 Method and apparatus for power control on a common channel in a telecommunication system | 59 | 1998 | |
| 6,678,249 Physical layer packet retransmission handling WCDMA in soft handover | 25 | 2002 | |
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| 6,229,843 Pilot adaptive vector correlator | 38 | 1999 | |
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| 6,804,264 Pilot signals for synchronization and/or channel estimation | 15 | 2000 | |
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| 6,173,177 Cellular base station with intelligent call routing | 20 | 1998 | |
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| 5,655,003 Wireless terminal having digital radio processing with automatic communication system selection capability | 50 | 1995 | |
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| 2004/0229,617 Cellular communication system, and mobile and base stations used in the same | 7 | 2004 | |
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| 6,275,712 Mobile station control states based on available power | 59 | 1999 | |
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| 2002/0123,365 Scalable base station architecture | 40 | 2000 | |
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| 5,584,049 Apparatus and method for adding and removing a base station from a cellular communications system | 41 | 1995 | |
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| 6,404,734 Scalable network restoration device | 13 | 1998 | |
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| 6,400,966 Base station architecture for a mobile communications system | 21 | 1997 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 31, 2013 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 31, 2017 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |