Patent SG-11201905687T-A (SG)
Title: Fast beam refinement phase for periodic beamforming training
Inventor: TRAININ SOLOMON
IPC: H04B7/08
Filed: 2018-02-01
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 09 August 2018 (09.08.2018) W I P0 I P C T onoloitHomilluionio oimill (10) International Publication Number WO 2018/144668 Al (51) International Patent Classification: H04B 7/06 (2006.01) HO4W 72/04 (2009.01) H04B 7/08 (2006.01) (21) International Application Number: PCT/US2018/016341 (22) International Filing Date: 01 February 2018 (01.02.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/455,576 06 February 2017 (06.02.2017) US 15/884,890 31 January 2018 (31.01.2018) US (71) Applicant: QUALCOMM INCORPORATED [US/US]; ATTN: International IP Administration, 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (72) Inventors: TRAININ, Solomon; 5775 Morehouse Dri- ve, San Diego, California 92121-1714 (US). SAN- DEROVICH, Amichai; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). KASHER, Assaf Yaakov; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). EITAN, Alecsander Petru; 5775 More- house Drive, San Diego, California 92121-1714 (US). (74) Agent: READ, Randol W. et al.; Patterson & Sheridan, L.L.P., 24 Greenway Plaza, Suite 1600, Houston, Texas 77046-2472 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, (54) Title: FAST BEAM REFINEMENT PHASE FOR PERIODIC BEAMFORMING TRAINING Sent by BRP RX new A sector r ir1 I II I STA A (Initiator) Sent by Old BRP TX A sector in Rx by Old A sector Rx by Old A sector RTS Sent by Old Sent by A sector Old B secto Rx by Old B sector STA B (Responder) Sent by Old B sector Rx in Omni - mode BRP ACK CTS BRP feedback LI LI Rx by Old B sector SIFS SIFS SIFS Tx training step ► Rx training step Initiator to Responder link training phase FIG. 9 co 00 O C (57) : Certain aspects of the present disclosure provide methods and apparatus for enhancing a beamforming training proce- dure. For example, an apparatus for wireless communications may include a processing system configured to generate a first transmit beamforming refmement frame, a first interface configured to output the first transmit beamforming refinement frame for transmission to a wireless node, wherein a first portion of the first transmit beamforming refmement frame is output for transmission via a first transmit beamforming sector and further wherein training fields of the first transmit beamforming refinement frame are output for transmission via two or more second transmit beamforming sectors, and a second interface configured to obtain a first feedback frame from the wireless node indicating one of the second transmit beamforming sectors. The apparatus may be configured to use the indicated second transmit beamforming sector for communication with the wireless node. [Continued on next page] WO 2018/144668 Al MIDEDIM01101 OIONER131111111111111111111111111110111110111111111111 TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3))