Patent SG-11201900377V-A (SG)
Title: System information acquisition
Inventor: JOHANSSON PER JOHAN MIKAEL
IPC: H04W36/14
Filed: 2017-08-11
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 111111111111111111111111111111111111111111111111111111111111111011111111111 Organization International Bureau (10) International Publication Number (43) International Publication Date .....0\"\" WO 2018/028668 Al 15 February 2018 (15.02.2018) WI P0 I P C T (51) International Patent Classification: (74) Agent: BEIJING SANYOU INTELLECTUAL PROP- H04W 36/14 (2009.01) H04W 36/00 (2009.01) ERTY AGENCY LTD.; 16th Fl., Block A, Corporate (21) International Application Number: Square, No.35 Jinrong Street, Beijing 100033 (CN). PCT/CN2017/097060 (81) Designated States (unless otherwise indicated, for every (22) International Filing Date: kind of national protection available): AE, AG, AL, AM, 11 August 2017 (11.08.2017) 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, (25) Filing Language: English DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, (26) Publication Language: English 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, (30) Priority Data: MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, 62/374,048 12 August 2016 (12.08.2016) US OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 15/674,519 11 August 2017 (11.08.2017) US 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. (71) Applicant: MEDIATEK INC. [CN/CN]; No.1, Dusing Rd. 1st, Science-Based Industrial Park, Hsin-Chu, Taiwan (84) Designated States (unless otherwise indicated, for every 300 (CN). kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, (72) Inventors: JOHANSSON, Per Johan Mikael; Lill- UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, sjobacken 4, 19634 Kungsangen (SE). HSU, Chia-Chun; TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, 6F., No.11, Banging St., Xindian Dist., New Taipei City, EE, ES, FL FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, Taiwan 231 (CN). LIN, Guan-Yu; No.100, Ln. 630, Bifeng MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, — Rd., Caotun Township, Nantou County, Taiwan 542 (CN). TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). = = = (54) Title: SYSTEM INFORMATION ACQUISITION (57) : A method of system information (SI) acquisition with re- UE RECEIVES AND STORES ONE 0 • 1 0IRE SETS duced signaling overhead is proposed. To reduce SI broadcast overhead, OF SI INFORMATION ELEMENT.; - 1 , _ ..O. - I , ED MN ONE OR V • E • 0 - 1 ------ 311 the quantity of periodic SI broadcast and the frequency of on-demand SI acquisition need to be reduced. To reduce the frequency of on-demand SI = = _y omE TIME GC IK _ acquisition, rather than always re-acquire SI when serving cell changes, ---- 312 = = UE is enabled to reuse stored SI information elements across different cells. More specifically, a novel concept of SI ID is introduced to be as- • •1 T - Ur 1-3 F ; 3 - I _ ' ..I ----- 315 sociated with an area that applies the same SI configuration. UE can reuse - _ I 7_ , I , T 11 stored SI information elements if the stored SI information elements are = valid based on the SI ID and validity check. = 1 llE FER - Frq ‘I I ICS I 4 - It - :.IR IT :. - I I - r , ---- 314 = - 1 1 , = -..315 UE OETERt II' EE 31-IETFL = THAT IS -1: 1 3 315 NI ) ale there • 30. c 3 ; -: •Z h T ' - - . YE ES 11 GC D 318 ,tD -F IF I 'IL \.... 1-1 FIG. 3 0 ei o [Continued on next page] WO 2018/028668 Al MIDEDIM111101111111111111111111111111111111111111111111111111101111111111111111111 Published: — with international search report (Art. 21(3))