APPARATUS AND METHOD FOR OBTAINING FREQUENCY AGILITY IN DIGITAL COMMUNICATION SYSTEMS

Abstract

In a communication system that comprises a plurality of subscriber stations in RF communication with a base station having multiple sequentially repetitive time slots, each time slot being assigned to a particular subscriber station, means to change either the frequency or the time slot configurations, or both, in the event of a deterioration of transmission quality caused by modulation change, frequency channel interference, equipment failure, or the like, or by the entrance of additional subscriber stations going on line.;The communication system is provided with a base station that is in communication with a central office and subscriber stations that are connected to the base station by RF channels. The base station has multiple sequentially repetitive time slots and a number of frequency channels. The time slots and frequency channels are selectively assignable to the subscriber stations by movement of the subscriber stations to selected vacant time slots or frequency channels in accordance with a predetermined assignment schedule. The system includes assignment circuits for selectively assigning time slots and frequency channels to any of the subscriber stations in response to either the coming on line of an additional subscriber or to a deterioration in transmission between the base station and a subscriber station in communication with it.

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Technology	Declaration Information			Specification Information	Explicitly Disclosed	Patent Type
Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Number	Explicitly Disclosed	Patent Type
Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: Illustrative part: ---- Release: + -	No	Family Member
Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: Illustrative part: ---- Release: + -	Yes	Basis Patent
2G	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: Illustrative part: ---- Release: + -	No	Family Member
2G	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: Illustrative part: ---- Release: + -	Yes	Basis Patent
Not Available	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: Illustrative part: ---- Release: + -	No	Family Member
Not Available	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: Illustrative part: ---- Release: + -	Yes	Basis Patent

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Publication No	Technology	Declaration Information			Specification Information	Explicitly Disclosed	Patent Type
Publication No	Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Number	Explicitly Disclosed	Patent Type
NL191725B	Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
NL191725B	2G	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
NL191725B	Not Available	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
NL191725B	2G	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
NL191725B	Not Available	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
NL191725B	2G	18/09/2008	ISLD-200901-001	INTERDIGITAL INC	S1 TS Number: TS 103 09 Version No: ---- Section No: Release : ---- S2 TS Number: TS 105 02 Version No: ---- Section No: Release : ---- +1 -1	Yes	Family Member
NL191725C	Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
NL191725C	2G	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
NL191725C	Not Available	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
NL191725C	2G	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
NL191725C	Not Available	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
NL191725C	2G	18/09/2008	ISLD-200901-001	INTERDIGITAL INC	S1 TS Number: TS 103 09 Version No: ---- Section No: Release : ---- S2 TS Number: TS 105 02 Version No: ---- Section No: Release : ---- +1 -1	Yes	Family Member
NL8802798A	Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
NL8802798A	2G	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
NL8802798A	Not Available	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
NL8802798A	2G	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
NL8802798A	Not Available	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
NL8802798A	2G	18/09/2008	ISLD-200901-001	INTERDIGITAL INC	S1 TS Number: TS 103 09 Version No: ---- Section No: Release : ---- S2 TS Number: TS 105 02 Version No: ---- Section No: Release : ---- +1 -1	Yes	Family Member
DE3837734A1	Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
DE3837734A1	2G	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
DE3837734A1	Not Available	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
DE3837734A1	2G	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
DE3837734A1	Not Available	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
DE3837734A1	2G	18/09/2008	ISLD-200901-001	INTERDIGITAL INC	S1 TS Number: TS 103 09 Version No: ---- Section No: Release : ---- S2 TS Number: TS 105 02 Version No: ---- Section No: Release : ---- +1 -1	Yes	Family Member
DE3837734C2	Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
DE3837734C2	2G	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
DE3837734C2	Not Available	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
DE3837734C2	2G	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
DE3837734C2	Not Available	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
DE3837734C2	2G	18/09/2008	ISLD-200901-001	INTERDIGITAL INC	S1 TS Number: TS 103 09 Version No: ---- Section No: Release : ---- S2 TS Number: TS 105 02 Version No: ---- Section No: Release : ---- +1 -1	Yes	Family Member
DE3837734C3	Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
DE3837734C3	2G	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
DE3837734C3	Not Available	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
DE3837734C3	2G	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
DE3837734C3	Not Available	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
DE3837734C3	2G	18/09/2008	ISLD-200901-001	INTERDIGITAL INC	S1 TS Number: TS 103 09 Version No: ---- Section No: Release : ---- S2 TS Number: TS 105 02 Version No: ---- Section No: Release : ---- +1 -1	Yes	Family Member
US4785450A	Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
US4785450A	Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
US4785450A	2G	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
US4785450A	Not Available	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
US4785450A	2G	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
US4785450A	Not Available	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
AU590168B1	Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
AU590168B1	Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
AU590168B1	2G	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
AU590168B1	Not Available	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
BE1001871A4	Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
BE1001871A4	Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
BE1001871A4	2G	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
BE1001871A4	Not Available	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
FR2638920A1	Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
FR2638920A1	Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
FR2638920A1	2G	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
FR2638920A1	Not Available	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
FR2638920A1	2G	18/09/2008	ISLD-200901-001	INTERDIGITAL INC	S1 TS Number: TS 103 09 Version No: ---- Section No: Release : ---- S2 TS Number: TS 105 02 Version No: ---- Section No: Release : ---- +1 -1	Yes	Family Member
FR2638920B1	Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
FR2638920B1	Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
FR2638920B1	2G	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
FR2638920B1	Not Available	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
FR2638920B1	2G	18/09/2008	ISLD-200901-001	INTERDIGITAL INC	S1 TS Number: TS 103 09 Version No: ---- Section No: Release : ---- S2 TS Number: TS 105 02 Version No: ---- Section No: Release : ---- +1 -1	Yes	Family Member
GB2224414A	Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
GB2224414A	Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
GB2224414A	2G	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
GB2224414A	Not Available	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
GB2224414A	2G	18/09/2008	ISLD-200901-001	INTERDIGITAL INC	S1 TS Number: TS 103 09 Version No: ---- Section No: Release : ---- S2 TS Number: TS 105 02 Version No: ---- Section No: Release : ---- +1 -1	Yes	Family Member
GB2224414B	Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
GB2224414B	Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
GB2224414B	2G	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
GB2224414B	Not Available	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
GB2224414B	2G	18/09/2008	ISLD-200901-001	INTERDIGITAL INC	S1 TS Number: TS 103 09 Version No: ---- Section No: Release : ---- S2 TS Number: TS 105 02 Version No: ---- Section No: Release : ---- +1 -1	Yes	Family Member
GB2224414C	Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: ---- Section No: ---- Release : ---- + -	Yes	Basis Patent
GB2224414C	Not Available	09/04/2001	ISLD-200105-002	INTERDIGITAL INC	S1 TS Number: Not Available Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
GB2224414C	2G	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
GB2224414C	Not Available	07/04/2004	ISLD-200407-005	INTERDIGITAL INC	S1 TS Number: TS 141 101 Version No: ---- Section No: ---- Release : ---- + -	No	Family Member
GB2224414C	2G	18/09/2008	ISLD-200901-001	INTERDIGITAL INC	S1 TS Number: TS 103 09 Version No: ---- Section No: Release : ---- S2 TS Number: TS 105 02 Version No: ---- Section No: Release : ---- +1 -1	Yes	Family Member

Publication No	Technology	Declaration Information			Specification Information				Explicitly Disclosed	Patent Type	Status	National Phase Entries
Publication No	Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Information				Explicitly Disclosed	Patent Type	Status	National Phase Entries
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