Patent SG-11201803775Q-A (SG)
Title: Power control for uplink transmissions
Inventor: BHARADWAJ ARJUN
IPC: H04W52/14
Filed: 2016-12-15
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -' Organization International Bureau (43) International Publication Date .... .....r ....) 22 June 2017(22.06.2017) WIPO I PCT (10) WO International 111111111111311111111111111111111111111111111111111111111111111111111111111111111111111111 2017/106534 Publication Number Al (51) International Patent Classification: (81) Designated States (unless otherwise indicated, for every H04W 52/14 (2009.01) H04B 7/0452 (2017.01) kind of national protection available): AE, AG, AL, AM, H04W 52/24 (2009.01) HO4L 5/00 (2006.01) AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, H04W 84/12 (2009.01) H04W 52/36 (2009.01) BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, H04W 52/10 (2009.01) H04W 52/40 (2009.01) DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, (21) International Application Number: KP KR KW KZ LA LC LK LR LS LU LY MA, PCT/US2016/066983 MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, (22) International Filing Date: NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, 15 December 2016 (15.12.2016) 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, (25) Filing Language: English ZA, ZM, ZW. (26) Publication Language: English (84) Designated States (unless otherwise indicated, for every (30) Priority Data: kind of regional protection available): ARIPO (BW, GH, 62/269,039 17 December 2015 (17.12.2015) US GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, 15/379,350 14 December 2016 (14.12.2016) US TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, (71) Applicant: QUALCOMM INCORPORATED [US/US]; DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, ATTEN: International IP Administration, 5775 Morehouse LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, Drive, San Diego, California, US 92121-1714 (US). SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). (72) Inventors: BHARADWAJ, Arjun; c/o Qualcomm Incor- porated, 5775 Morehouse Drive, San Diego, California Published: (US). c/o Qualcomm 92121-1714 TIAN, Bin; Incorpor- 21(3)) - with international search report (Art ated, 5775 Morehouse Drive, San Diego, California 92121- 1714 (US). (74) Agents: HODGES, Jonas J. et al.; c/o Arent Fox LLP, 1717 K Street NW, Washington, District of Columbia 20006-5344 (US). (54) Title: POWER CONTROL FOR UPLINK TRANSMISSIONS 200Th — Downlink Frame 210 (e g , trigger frame) AP computes RX power AP 202 . PC command (e g target RSSI) , AP transmit power MCS I - I — — I UL OFDMA / MU MIMO STA 204 Transmission 220 Il STA computes DL pathloss .4t STA autonomously sets Tx 1 1 . power based on computed en pathloss and target RSSI In 0 FIG. 2 11 ---.... IN 1-1 (57) : A method, an apparatus, and a computer-readable medium O the apparatus is configured to determine a target receiver power level STA adjusts Tx power level based on: (a) estimated DL pathloss (b) PC command, SNR target, target RSSI May include STA's headroom for wireless communication are provided. In one aspect, for uplink transmission. The apparatus is configured to trans - N mit a frame to a wireless device. The frame may include infoiination associated with the determined target receiver power level for 0 uplink transmission and a transmit power level at which the frame is to be transmitted.