Patent SG-11201803993X-A (SG)
Title: Narrow band prach with multiple tone hopping distances
Inventor: WANG RENQIU
IPC: H04L5/00
Filed: 2016-11-11
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property ----' Organization International Bureau irst0) (43) International Publication Date ..... ..sr ,„,„. 22 June 2017(22.06.2017) WIPO I PCT ID Hit (10) WO 111111111111111111111111111111 International III 2017/105693 III Publication 11111 III IIIIIIIIIIIIII Al Number It111111111111111 (51) International Patent Classification: house Drive, San Diego, California 92121-1714 (US). H04L 5/00 (2006.01) H04W 4/00 (2009.01) WANG, Xiao Feng; do Qualcomm Incorporated, 5775 H04W 74/08 (2009.01) Morehouse Drive, San Diego, California 92121-1714 (US). CHEN, Wanshi; c/o Qualcomm Incorporated, 5775 More- (21) International Application Number: PCT/US2016/061483 house Drive, San Diego, California 92121-1714 (US). GAAL, Peter; c/o Qualcomm Incorporated, 5775 More- (22) International Filing Date: house Drive, San Diego, California 92121-1714 (US). 11 November 2016 (11.11.2016) MONTOJO, Juan; c/o Qualcomm Incorporated, 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (25) Filing Language: English RICO ALVARINO, Alberto; c/o Qualcomm Incorpor- (26) Publication Language: English ated, 5775 Morehouse Drive, San Diego, California 92121- 1714 (US). FAKOORIAN, Seyed Ali Akbar; c/o Qual- (30) Priority Data: comm Incorporated, 5775 Morehouse Drive, San Diego, 62/269,799 18 December 2015 (18.12.2015) US California 92121-1714 (US). 15/279,991 29 September 2016 (29.09.2016) US (74) Agents: GELFOUND, Craig A. et al.; c/o ARENT FOX (71) Applicant: QUALCOMM INCORPORATED [US/US]; LLP, 1717 K Street NW, Washington, District of Columbia ATTEN: International IP Administration, 5775 Morehouse 20006-5344 (US). Drive, San Diego, California, US 92121-1714 (US). (81) Designated States (unless otherwise indicated, for every (72) Inventors: WANG, Renqiu; c/o Qualcomm Incorporated, kind AE, AG, AL, AM, of national protection available): 5775 Morehouse Drive, San Diego, California 92121-1714 AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, (US). XU, Hao; c/o Qualcomm Incorporated, 5775 More- BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, [Continued on next page] Title: NARROW BAND PRACH WITH MULTIPLE TONE HOPPING DISTANCES (54) (57) : Due to the limited dimension of a NB that may be used by multiple large be users, as well as possible coverage areas, timing offset estimation may out- 1 1 1112 side of NCP. The inaccuracy in the timing estimate can be improved by using more I 1100 Determine CE level \"st I ( 1 1 than one tone hopping distance for PRACH. An apparatus may then transmit a first and second tone of the PRACH at a first hopping distance from the first tone. The r apparatus may then transmit a third tone of the PRACH and a fourth tone of the 1 1114 , I Receive resource allocation I/ PRACH at a second hopping distance from the third tone. The second hopping dis- tance may be greater than first hopping distance. The apparatus may also transmit an additional tone of the PRACH using a random hopping distance. A receiving appar- r PRACH determine a phase estimation based Select a tone hopping atus may receive the transmitted and on I distance 1 the sets of tones having different hopping distances. f 1102 Transmit first tone il I Transmit second tone at 1104 ri distance dl from first tone 1 Transmit third tone 1106 et E I'l Transmit fourth distance d2 from tone at third tone ,1108 .4t M I C \ V: Transmit additional tone at random hopping distance 1110 il in 0 FIG. 11 1-1 --..„ It - - 1-1 0 ei O WO 2017/105693 Al MIDEDIMOMOIDIONOIDEMOMMIMMIRIMMOVOIMIE DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, 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, TJ, TM), European (AL, AT, BE, BG, CH, CY, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, CZ, IT, RS, SE, DE, LT, 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. SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). GA, Published: (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, with international search report (Art. 21(3))