Patent SG-11201805376Y-A (SG)
Title: Frequency hopping for random access
Inventor: LIN XINGQIN
IPC: H04B1/7143
Filed: 2017-01-27
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 3 August 2017 (03.08.2017) WIPOIPCT (10) International Publication Number WO 2017/131577 A1 (51) International Patent Classification: H04B 1/7143 (2011.01) (21) International Application Number: (22) International Filing Date: (25) Filing Language: (26) Publication Language: PCT/SE2017/050072 27 January 2017 (27.01.2017) English English (30) Priority Data: 62/288,436 62/288,633 29 January 2016 (29.01.2016) US 29 January 2016 (29.01.2016) US (71) Applicant: TELEFONAKTIEBOLAGET LM ERIC­ SSON (PUBL) [SE/SE]; 164 83 Stockholm (SE). (72) Inventors: LIN, Xingqin; 85 Rio Robles E Unit 3206, San Jose, California 95134 (US). SHOKRI RAZAGHI, Hazhir; Hanstavagen 49, Lgh 1643, 164 53 Kista (SE). BERGMAN, Johan; Kungsholmsgatan 9, 112 27 Stock­ holm (SE). SUI, Yutao; Ankdammsgatan 25 lgh 1703, 171 67 Solna (SE). GROVLEN, Asbjorn; Lindhagensgatan 139, 112 15 Stockholm (SE). BLANKENSHIP, Yufei; 21910 W. Pine Lake Circle, Kildeer, Illinois IL 60047 IL (US). ADHIKARY, Ansuman; 1528 Vista Club Circle, Apt 104, Santa Clara, California 95054 (US). WANG, Yi- Pin Eric; 1357 Grosventres Ct, Fremont, California 94539 (US). (74) Agent: BOU FAICAL, Roger; Ericsson AB, Patent Unit Kista RAN 1, 164 80 Stockholm (SE). (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, 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, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Declarations under Rule 4.17: — as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(H)) [Continued on next page] (54) Title: FREQUENCY HOPPING FOR RANDOM ACCESS ['/Symbol Group 18 Frequency One Tone R1 Symbol Group Interval l> FIG. 1 •H m (57) : A wireless communication device (14) (e.g., a user equipment) in a wireless communication system (10) is con- ^ figured for transmitting a random access preamble signal (16). The wireless communication device (14) in particular is configured to ^ generate a random access preamble signal (16) that comprises multiple symbol groups (18), with each symbol group (18) on a single tone during a different time resource, according to a frequency hopping pattern that hops the random access preamble signal (16) a ^ fixed frequency distance at one or more symbol groups (18) and hops the random access preamble signal (16) a pseudo random fre- quency distance at one or more other symbol groups (18). Each symbol group (18) comprises one or more symbols. The wireless S communication device (14) is also configured to transmit the random access preamble signal (16). WO 2017/131577 A11 lllll llllllll II llllll III lllll III llll III III lllll lllll lllll lllll lllll llll lllllll llll llll llll — as to the applicant's entitlement to claim the priority of — the earlier application (Rule 4.17(iii)) Published: — with international search report (Art. 21(3)) before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h))