Invalidity dossier
US 7058405
User equipment (UE) assisted system database update
Current assignee: InterDigital Technology Corp
Added 9/23/2026, 11:30:33 PM
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Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview — US 7,058,405 B2
Title: "User equipment (UE) assisted system database update"
Assignee: InterDigital Technology Corp (original and current assignee as listed).
Key dates: Priority date 2002-06-28; application US 10/822,502 filed 2004-04-12; publication date 2006-06-06. Legal status listed as "Expired – Fee Related," with adjusted expiration 2023-06-08. Google Patents labels the legal status an assumption, not a legal conclusion. The application is a continuation of Ser. No. 10/328,623 (filed Dec. 23, 2002, now U.S. Pat. No. 6,735,443), which claims benefit of provisional 60/392,211 (filed 2002-06-28).
Purpose: UE devices increasingly support access via multiple wireless systems (WLANs, Bluetooth®, UMTS, GPRS), creating a need for handover between technologies. Base stations must retain and constantly update information about neighboring systems, but maintaining inter-system connections (e.g., via an IP cloud under roaming agreements) is a deployment challenge. The invention uses UEs as an alternate source of that information.
Plain-language scope (per the description): A multimode UE (101) in system 102 detects surrounding systems 103–105 and sends current information to its base station (102b), which authenticates the UE's identity, verifies integrity (e.g., message authentication codes; encryption optional), and updates its database. After handover, the UE reports its most recently resident system to the new base station. The BS may validate updates by communicating with adjacent systems, may proactively give the UE a list of surrounding systems (so the UE need not report those), and may use stored geo-location data for cell re-planning and coverage approximation. Information exchanged may include geo-location, new system, network congestion, and failure to detect a network.
What the excerpt does not establish: It claims no validity or enforceability conclusions; no litigation, ownership transfers, or prior-art analysis; no full claim language (claims were not included); the excerpt covers only the abstract, summary, brief description, and a partial detailed description.
Generated 10/1/2026, 9:32:41 PM
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Litigation summary
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PTAB challenges
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Assignment history
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Prior art
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Obviousness
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Extensions
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Derivative works
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