Patent SG-11201908431Y-A (SG)
Title: Coding scheme and extended synchronization access burst for ec-gsm-iot enhancement
Inventor: LIN ZHIPENG
IPC: H04W74/08
Filed: 2018-03-27
Abstract: 1 O GC GC GC N 1-1 00 1-1 O (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 04 October 2018 (04.10.2018) WIP0 I PCT O V SID o Ho 11V 110111110 VII IE (10) International Publication Number WO 2018/178880 Al (51) International Patent Classification: HO4L 1/00 (2006.01) H04W 74/08 (2009.01) (21) International Application Number: PCT/IB2018/052104 (22) International Filing Date: 27 March 2018 (27.03.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: PCT/CN2017/078266 27 March 2017 (27.03.2017) CN 62/477,106 27 March 2017 (27.03.2017) US (71) Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) [SE/SE]; SE-164 83 Stockholm (SE). (72) Inventors: LIN, Zhipeng; No. 32, Chi Tian Road Jiangn- ing Development Zone, Nanjing, Jiangsu 211100 (CN). DIACHINA, John; 505 Kristin Drive, Garner, North Car- olina 27529 (US). ERIKSSON LOWENMARK, Ste- fan; Alghornsvagen 35, SE-179 98 Farentuna (SE). JO- HANSSON, Nicklas; Lovabacken 1, SE-590 45 Brokind (SE). (74) Agent: HENDERSON, Mymy et al.; 2755 Augustine Dri- ve, Santa Clara, California 95054 (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, 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)) (54) Title: CODING SCHEME AND EXTENDED SYNCHRONIZATION ACCESS BURST FOR EC-GSM-IOT ENHANCEMENT 400 ESAB: EXTENDED SYNCHRONIZATION ACCESS BURST S[140] E[102] G[68] 402 404 406 408 T - TAIL BITS--._406 S - SYNCHRONIZATION SEQUENCE BITS -, 402 E - ENCRYPTED BITS - \ _ 404 G - GUARD PERIOD -- \ _ 408 X - NUMBER OF PUNCTURED BITS FIG. 4 (57) : A wireless device, a Radio Access Network (RAN) node, and various methods are described herein for improving the coverage performance of the Extended Coverage (EC)- Random Access Channel (RACH). For instance, the wireless device, the RAN node, and various methods can improve the coverage performance of the EC-RACH by utilizing a new access burst (referred to herein as Extended Synchronization Access Burst (ESAB)), a new coding scheme (referred to herein as RACH11') for the CC5 2TS EC- RACH, and/or an access burst mapping scheme for the CC5 2TS EC-RACH.