HAND-OFF BETWEEN ULTRA-WIDEBAND CELL SITES

Briefly, the present invention provides a dynamic channel re-assignment capability between mobile units (70), base stations (10) and sectors (1, 2, 3, 4, 5) within base station coverage areas (20). The wireless devices used in the present invention may include impulse radio communication devices suc...

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Bibliographische Detailangaben
Hauptverfasser:	ARRIETA, RODOLFO T, JOLLY, DONALD W, SANTHOFF, JOHN H
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING TRANSMISSION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION WIRELESS COMMUNICATIONS NETWORKS
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Beschreibung
Zusammenfassung:	Briefly, the present invention provides a dynamic channel re-assignment capability between mobile units (70), base stations (10) and sectors (1, 2, 3, 4, 5) within base station coverage areas (20). The wireless devices used in the present invention may include impulse radio communication devices such a s, for example ultra-wideband radio (also known as digital pulse wireless) communication devices. Ultra-wideband bandwidth and channel allocation can b e effectively managed, even though link quality generally deteriorates near th e outer boundary of the base station. By maintaining dual communications with an adjoining base station, the present invention reduces the bit error rate and maintains signal strength (e.g., RF signal strength). This procedure is term ed a "soft-handoff".