Abstract
Methods and apparatus for millimeter wave (mmW) beam acquisition are disclosed. An apparatus includes a transmitter configured to transmit millimeter wave (mmW) WTRU (mmW WTRU) information over a cellular system to a base station a receiver and a processor. The receiver receives a list of candidate mmW base stations (mB) including mmW acquisition start timing information from the base station, and the processor calculates correlation values around the received mmW acquisition start timing information for the mBs in the list.
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4G | 08/11/2019 | ISLD-201910-015 | INTERDIGITAL INC | Yes | Basis Patent | ||||
5G | 08/11/2019 | ISLD-201910-015 | INTERDIGITAL INC |
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Claim
1. A method, implemented at a wireless transmit/receive unit (WTRU), for millimeter wave (mmW) beam acquisition, comprising:
transmitting millimeter wave (mmW) WTRU (mmW WTRU) information over a cellular system to a base station, wherein the mmW information includes at least location one of location, timing, and mmW capability information at the mmW WTRU and the mmW information is used in the generation of a candidate mmW base station (mB) list;
receiving the mB list including mmW acquisition start timing information; and
performing sliding window correlations using the mmW acquisition start timing information in the list.
2. The method of claim 1, wherein the mmW acquisition start timing information includes timing information relative to the cellular system timing.
3. The method of claim 1, further comprising:
receiving at least one of a number of beam sweeping repetitions, mB and beam specific indices corresponding to signature sequences, and resource assignments for mmW WTRU reporting, after receiving the mB list, and calculating correlation values for mBs in the list based on the at least one of the number of beam sweeping repetitions, mB and beam specific indices corresponding to signature sequences, and resource assignments for mmW WTRU reporting.
4. The method of claim 1, wherein the mmw WTRU performs sliding window correlations using signature sequences corresponding to mBs in the mB list and beams in the list.
5. The method of claim 1, further comprising:
generating a message including the N highest received mmW signal strengths across the candidate mB and beam combinations and associated mB and beam indices.
6. The method of claim 1, further comprising:
transmitting feedback information over at least one of a cellular link or an mmW link as directed by the base station.
7. The method of claim 1, further comprising:
transmitting at least one of highest received mmW signal strength and corresponding mB/beam indices, and highest received mmW signal strength exceeding a predetermined threshold.
8. The method of claim 1, further comprising:
detecting modulated beacons transmitted by mBs;
correlating the modulated beacons with a sliding window filter;
determining a specific mB and beam pair based on highest peak energy on a condition that single stage modulation is used; and
determining beacon frame timing and specific beam identity on a condition that multiple stage modulation is used.
Associated Portfolios
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
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The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.