Invention Application
- Patent Title: PHASE LOCK LOOP PHASE AMBIGUITY MITIGATION FOR MULTI-LINK OPERATION EXTRAPOLATED SOUNDING
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Application No.: US18356550Application Date: 2023-07-21
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Publication No.: US20240380640A1Publication Date: 2024-11-14
- Inventor: Matthew Aaron Silverman , Malcolm Muir Smith , Brian Donald Hart , Indermeet Singh Gandhi , John Matthew Swartz
- Applicant: Cisco Technology, Inc.
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Main IPC: H04L25/02
- IPC: H04L25/02 ; H04W88/08

Abstract:
The present disclosure is directed to simultaneous channel sounding on multiple MLO channels followed by determining phase and amplitude corrections based on channel impulse responses obtained on each MLO channel. The corrections are then used in subsequent extrapolation of channel sounding on one channel to another. In one aspect, a method includes transmitting, on each radio interface of a first multi-link device, a corresponding sounding probe to a second multi-link device; determining, by each radio interface of the first multi-link device, a corresponding channel impulse response based on the corresponding sound probe to yield a plurality of channel impulse responses; determining an offset between the plurality of channel impulse responses; and using the offset during a subsequent extrapolation of a sounding probe on one radio interface to a second radio interface of the first multi-link device.
Public/Granted literature
- US12301385B2 Phase lock loop phase ambiguity mitigation for multi-link operation extrapolated sounding Public/Granted day:2025-05-13
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