Invalidity dossier
US 7321570
Method and apparatus for dynamic power allocation to a multimedia broadcast/multicast service
Current assignee: Google Technology Holdings LLC
Added 9/21/2026, 1:05:03 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 — US 7,321,570 B2
Title: Method and apparatus for dynamic power allocation to a multimedia broadcast/multicast service
Patent number / application: US 7,321,570 B2; application US 10/770,906
Assignee / inventor: Original assignee Motorola, Inc.; current assignee listed as Google Technology Holdings LLC. Inventors: Rapeepat Ratasuk, Jean-Aicard Fabien, Amitava Ghosh, Weimin Xiao.
Dates: Priority and filing date 2004-02-03; publication date 2008-01-22; anticipated expiration 2024-02-03. Legal status listed as "Expired - Lifetime" (stated as an assumption, not a legal conclusion). Other versions: US 2005/0169202 A1.
Purpose: In UMTS Multimedia Broadcast/Multicast Service (MBMS), a Radio Network Controller (RNC) decides between a Point-to-Multipoint (PTM) channel (e.g., FACH mapped to S-CCPCH) and Point-to-Point channels. Common physical channels such as S-CCPCH are not power controlled, so the RNC conventionally instructs the Node B to allocate a fixed percentage of transmit power sufficient for acceptable error rate at the cell edge (the excerpt gives ~25% of Node B power for 1% target BLER). The patent addresses that this static, cell-edge-based allocation wastes power, limits other services, and increases interference in neighboring cells.
Plain-language scope: The system assigns a PTM communication channel to the MBMS service, determines a power requirement for each of multiple UEs based on a handover quality measurement associated with that UE, and allocates a power level to the PTM channel based on those multiple power requirements. It also dynamically adjusts the allocated power when a handover quality measurement is received during provision of the MBMS service. Embodiments cover both methods and a network controller (RNC) performing these steps. The excerpt describes FIGS. 1–5, including a system with Node Bs 120/122/124, network controller 130, and UEs 102–104.
Source: https://patents.google.com/patent/US7321570/en
What the excerpt does not establish: the full claim text; the complete detailed description; the exact nature of the handover quality measurements or algorithms; drawing contents; and the omitted portion of the specification (the text is expressly excerpted).
Generated 10/1/2026, 10:00:57 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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