Patent SG-11201900775U-A (SG)
Title: System information acquisition
Inventor: JOHANSSON PER JOHAN MIKAEL
IPC: H04W48/10
Filed: 2017-08-11
Abstract: BROADCAST?. REQUEST? CONLV' ION MEP: 414 ACQLIRE. setit.Dot BROADCAST SIGN.B !NO ACIOUIR:BE BY OW 1:51-tIAND a REQLEm• N cc O cc O O (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 15 February 2018 (15.02.2018) WIP0 I PCT omit VIII °nolo omoionoiloomoilowom oimIE (10) International Publication Number WO 2018/028670 Al 411 (51) International Patent Classification: H04W 48/10 (2009.01) (21) International Application Number: PCT/CN2017/097062 (22) International Filing Date: 11 August 2017 (11.08.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/374,047 12 August 2016 (12.08.2016) US 15/674,518 11 August 2017 (11.08.2017) US (71) Applicant: MEDIATEK INC. [CN/CN]; No. 1, Dusing Rd. 1st, Science-Based Industrial Park, Hsin-Chu, Taiwan 300 (CN). (72) Inventors: JOHANSSON, Per Johan Mikael; Lill- sjobacken 4, Kungsangen, 19634 (SE). HSU, Chia-Chun; 6F., No. 11, Baoqing St., Xindian Dist., New Taipei City, Taiwan 231 (CN). LIN, Guan-Yu; No. 100, Ln. 630, Bifeng Rd., Caotun Township, Nantou County, Taiwan 542 (CN). (74) Agent: BEIJING SANYOU INTELLECTUAL PROP- ERTY AGENCY LTD.; 16th Fl., Block A, Corporate Square, No. 35 Jinrong Street, Beijing 100033 (CN). (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, (54) Title: SYSTEM INFORMATION ACQUISITION UE RECPVE$ SI LIST - SI INFORMATION EL MEET GROUPS HOW EACKSI .INFORMATION ELEMENT GROUP PAN:EE ACQUIRED UE DETERMINES METHOD TO ACQUIRE THE REQUIRED SI BASED ON THE RECEIVED SI LIST 4t3 FIG. 4 (57) : A method of system information (SI) acquisition with reduced signaling overhead is proposed. To reduce SI broadcast overhead, the quantity of periodic SI broadcast and the frequency of on-demand SI acquisition need to be reduced. In order to reduce the quantity of periodic SI broadcasting, on-demand SI delivery is enabled. With on-demand SI delivery, signaling overhead is proportional to the frequency of SI acquisition. From the network side, the base stations proactively provide SI delivery options and delivers SI over unicast or scheduled broadcast. From the UE side, UE determines how to acquire SI. i.e., by listening to broadcast or by sending an on- demand request via existing procedures such as a random-access procedure over a random-access channel (RACH). [Continued on next page] WO 2018/028670 Al MIDEDIMOMOIDEIREEMOMIERIIMEMODEVOIS 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))