Invalidity dossier
US 7126940
Positioning a subscriber terminal in a packet-switched mobile telephone network
Current assignee: Nokia Oyj
Added 9/21/2026, 1:05:05 PM
Active provider: DeepSeek · deepseek-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview: US7126940B2
Title: Positioning a subscriber terminal in a packet-switched mobile telephone network
Patent Number: US7126940B2
Application Number: US10/004,084
Inventors: Veijo Vänttinen; Jussi Rajala
Original Assignee: Nokia Mobile Phones Ltd (later assigned to Nokia Corporation; current assignee listing includes Nokia Oyj, Nokia Technologies Oy, and Vringo Infrastructure Inc.)
Priority Date: 2000-10-24
Filing Date: 2001-10-23
Publication Date: 2006-10-24
Status: Expired – Lifetime (expiration noted 2023-07-20)
Purpose:
The invention relates to positioning (geographically locating) a subscriber terminal in a packet-switched mobile telephone network. Positioning is described as important for regulatory (FCC) and commercial purposes, such as tariff zones and navigation services. Location services were previously developed mainly for circuit-switched networks like GSM, where accuracy is limited (e.g., cell identity, Timing Advance). Packet-switched systems present a specific difficulty: associating communications through the Lb interface with a specified terminal, and establishing signalling among three parties—the SMLC, the MS, and the SGSN.
Plain-Language Scope:
The core idea is to use both packet-switched (connectionless) and circuit-switched (connection-oriented) communications between network elements for positioning. Specifically, a circuit-switched connection is used between the Base Station Controller (BSC) and the Serving Mobile Location Centre (SMLC), while a packet-switched connection is used between other network elements. An association between the packet-switched and circuit-switched functionality is established in the BSC—for example, a table associating a packet-switched message identifier with a circuit-switched message identifier. An embodiment uses SS7-based signalling between the BSC and SMLC. The method passes a positioning message via the base station controller.
Source: https://patents.google.com/patent/[US7126940](/patent/US7126940)/en
What the excerpt does not establish: It does not provide the full claim language, complete description, or drawings; it omits detailed embodiments and any independent/dependent claim breakdown. No litigation, ownership-transfer, validity, or prior-art analysis should be inferred from this overview.
Generated 10/1/2026, 10:00:56 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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