US 11,152,997 B2Granted

Beam acquisition with receiving beamforming

AssigneeIntel IP Corporation

InventorsYushu Zhang, Gang Xiong, Yuan Zhu, Ralf Bendlin, Jong-Kae Fwu

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Abstract

Briefly, in accordance with one or more embodiments, an apparatus of a user equipment (UE) comprising circuitry to receive a Beamforming Reference Signal (BRS) transmission from an evolved NodeB (eNB) via one or more transmission beams, divide the one or more transmission beams into one or more transmission beam sets, wherein a transmission beam set comprises a number of consecutive orthogonal frequency-division multiplexing (OFDM) symbols, scan consecutive receiving beams for corresponding transmission beam sets to obtain channel measurements to select a transmission beam and a receiving beam based at least in part on the channel measurements, and receive transmissions from the eNB using the selected transmission beam and the selected receiving beam.

Claims12

Dependent claims

An apparatus of a user equipment (UE) comprising:

one or more baseband processors to:
receive a Beamforming Reference Signal (BRS) transmission from an evolved NodeB (eNB) via one or more transmission beams;
divide receiving beams into two or more levels;
in a first frame:
scan the one or more transmission beams using a first level of receiving beams for the first level;
scan the one or more transmission beams using a second level of receiving beams for the second level;
wherein consecutive receiving beams in the first level of receiving beams and the second level of receiving beams are used for different transmission beams;
select a best receiving beam from the scan of the first level and the scan of the second level;
in a second frame:
scan the one or more transmission beams in the first level of receiving beams and the second level of receiving beams using only neighbor beams immediately neighboring the best receiving beam;
select a best transmission beam based on scans from the first frame and the second frame;
and
receive transmissions from the eNB using the best transmission beam and the best receiving beam.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/408,450Filed 9 May 2019 · continuation
Priority: WO PCT/CN2015/08820827 Aug 2015
Published: US 2019/0334606 A131 Oct 2019
Granted: 19 Oct 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

H04B 7/06952
Using beam selection: selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
H04B 7/0617
Of weighted versions of same signal: for beam forming
H04B 7/088
Hybrid systems, i.e. switching and combining: using beam selection
H04L 5/0048
Arrangements for allocating sub-channels of the transmission path: allocation of pilot signals, i.e. of signals known to the receiver

Family

PCT/US2015/067167Parent of this continuation · filed 21 Dec 2015
US 2019/0334606 A1Pre-grant publication · published 31 Oct 2019
Application15/747,049Parent of this continuation
US 2018/0367204 A1Published application
US 11,152,997 B2This patent

From the US filing history. Foreign family members aren’t listed.