Invention Grant
- Patent Title: VHT-SIG-B field in null data packets (NDPs)
- Patent Title (中): 空数据包（NDP）中的VHT-SIG-B字段
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Application No.: US13197600Application Date: 2011-08-03
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Publication No.: US08743784B2Publication Date: 2014-06-03
- Inventor: Hemanth Sampath , Vincent Knowles Jones, IV , Albert Van Zelst , Maarten Menzo Wentink , Santosh Paul Abraham , Simone Merlin
- Applicant: Hemanth Sampath , Vincent Knowles Jones, IV , Albert Van Zelst , Maarten Menzo Wentink , Santosh Paul Abraham , Simone Merlin
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Patterson & Sheridan, L.L.P.
- Main IPC: H04J11/00
- IPC: H04J11/00 ; H04B7/00 ; H04W4/00 ; H04J3/00
Abstract:
Certain aspects of the present disclosure relate to methods and apparatus for using information in a Very High Throughput Signal B (VHT-SIG-B) field in the preamble of a null data packet (NDP). Retaining the VHT-SIG-B field in NDPs offers several advantages, such as maintaining a unified IEEE 802.11ac preamble structure, providing for 4 μs extra time to process beamforming feedback, and being able to use information in the VHT-SIG-B field to determine a level of interference in the NDP.
Public/Granted literature
- US20120033614A1 VHT-SIG-B FIELD IN NULL DATA PACKETS (NDPs) Public/Granted day:2012-02-09
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