Invalidity dossier

US 9485741

Energy saving management method for base station, apparatus and system

Current assignee: Huawei Technologies Co Ltd

Added 9/23/2026, 3:29:44 PM

At a glanceNo PTAB challengesNo litigation on file

Active provider: DeepSeek · deepseek-flash

Patent summary

Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.

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Patent Overview — US 9,485,741 B2

Title: Energy saving management method for base station, apparatus and system

Assignee: [[Huawei Technologies Co.](/litigations/by-plaintiff/Huawei%20Technologies%20Co.), Ltd.](/litigations/by-plaintiff/Huawei%20Technologies%20Co.%2C%20Ltd.) (current and original assignee per the source). Inventor: Haitao Xia.

Key dates: Priority date 2009-10-19; application US 14/245,186 filed 2014-04-04; published as US 2014/0220953 A1 on 2014-08-07; granted 2016-11-01. Status listed as Active, with anticipated expiration 2030-10-11.

Purpose and plain-language scope: The patent addresses base-station energy saving (ES). Under prior practice, a base station itself monitored its cells' load and decided when to enter or leave an ES state, so operators could not apply an ES strategy based on network-wide load or performance. The invention lets an operator's management side drive ES. Specifically, an Integration Reference Point Manager (IRPManager) initiates, toward an Integration Reference Point Agent (IRPAgent) over the northbound interface (Itf-N), either an ES enable/disable procedure — allowing or prohibiting ES operation on a base station or cell — or an ES activation/resumption procedure — causing the base station or cell to enter or leave the ES state.

Attributes include an "ES enable/disable" attribute (example IE: is EnergySavingAllowed, Boolean True/False or 1/0) and an "ES effective period" attribute. Setting may occur at base-station level or cell level. The IRPManager may act according to an operator's strategy and may use IRP messages (e.g., Basic CM IRP, Bulk CM IRP, Notification IRP). Figures cover attribute-setting interactions, activation, resumption, an ES-state-update notification, and structures of a network management system and base station. Claimed subject matter includes the method, an IRPManager (processor plus Itf-N interface), and a network management system comprising IRPManager and IRPAgent.

Source: https://patents.google.com/patent/US9485741/en

What the excerpt does not establish: It supplies no full claim text or claim count, no specification paragraphs beyond the summary above, no prosecution history, no cited prior art, and no legal conclusions on scope, validity, or enforceability. Legal status and expiration are expressly assumptions in the source.

Generated 10/1/2026, 9:51:32 PM

Cases on file (0)

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Litigation summary

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Proceedings on file (0)

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No PTAB proceedings on file. This patent has not been challenged via IPR, PGR, or CBM. The absence is itself a signal — well-asserted patents eventually attract IPRs. The LLM analysis below may surface filings the ODP feed hasn’t indexed yet.

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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