Invalidity dossier
US 8989165
Admission control for QoS-driven wireless LANs
Current assignee: AT&T Intellectual Property II LP
Added 9/23/2026, 4:27:11 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 8,989,165 B2
Title: Admission control for QoS-driven wireless LANs
Assignee/current assignee (as listed): AT&T Intellectual Property II LP; AT&T Properties LLC. Original assignee: AT&T Intellectual Property II LP.
Key dates: Priority date 2000-07-14 (claimed from US09/616,897); filing date 2013-05-06 (application US13/888,194); publication date 2015-03-24. Status listed as "Expired - Fee Related," with anticipated expiration 2020-07-14.
Inventors: Jin-Meng Ho and Wei Lin.
Purpose: The patent addresses admission control for quality-of-service (QoS) support in wireless local-area networks (WLANs). The background states that IEEE P802.11/1999 "do not support QoS transport" and provide only asynchronous, low-throughput best-effort data services. The invention provides "an admission control technique that can be used for QoS support in a WLAN," integrating lower WLAN layers with higher Open Systems Interconnection layers to enable end-to-end QoS and improved channel throughput.
Plain-language scope: The patent describes a QoS point coordinator (PC) for a basic service set (BSS) that includes a QoS management entity (QME) and an admission control entity (ACE). The QME receives a reservation request characterizing a QoS session or application—either continuous/periodic and time-sensitive, or discontinuous/bursty and time-tolerant—requesting channel resources in the BSS. The channel is organized into superframes, each having a contention-free period (CFP) and a contention period (CP). The ACE performs "macro bandwidth management" by deciding whether to grant the request based on QoS parameters, using channel status from a frame schedule entity. Admission criteria depend on requested bandwidth versus useable bandwidth, bandwidth used by continuous/periodic flows, and, for bursty flows, bandwidth used by higher-priority bursty traffic. Admission control may also be based on token-bucket bursty behavior, with figures covering architecture, signaling, frame classification, scheduling, and superframe arrangements.
Source: https://patents.google.com/patent/US8989165/en
Not established by the excerpt: The full claims, complete specification, detailed figures, prosecution history, and legal effect of the listed status.
Generated 10/1/2026, 9:50:47 PM
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Assignment history
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Prior art
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