Patent SG-11201804193X-A (SG)
Title: Virtual radio access network using software-defined network of remotes and digital multiplexing switches
Inventor: STAPLETON SHAWN PATRICK
IPC: H04B7/00
Filed: 2016-11-21
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property - Organization International Bureau irst0) (43) International Publication Date ..... ..sr ,„,„01 26 May 2017(26.05.2017) WIPO I PCT ID Hit (10) 1111111111111111111 WO International Ell 2017/087937 Publication 111111111111411111111111t111111111IIIIII Number Al (51) International Patent Classification: (81) Designated HO4B 7/00 (2006.01) kind AO, (21) International Application Number: BZ, PCT/US2016/063039 DO, (22) International Filing Date: HN, 21 November 2016 (21.11.2016) KW, MG, (25) Filing Language: English OM, (26) Publication Language: English SC, TN, TR, (30) Priority Data: ZW. 62/258,289 20 November 2015 (20.11.2015) US (84) Designated (71) Applicants: DALI SYSTEMS CO. LTD.; Maples Cor- kind porate Services Limited, P.O. Box 309, Ugland House, GM, South Church Street, George Town, Grand Cayman, Cay- TZ, man Islands, KY1-1104 (KY). DALI WIRELESS, INC. TJ, TM), of AT, CA, DZ, HR, KZ, MK, PA, SD, of KE, UG, States (unless national protection AU, AZ, BA, CH, CL, CN, CO, EC, EE, EG, ES, HU, ID, IL, IN, LA, LC, LK, MN, MW, MX, PE, PG, PH, PL, SE, SG, SK, SL, TT, TZ, UA, States (unless regional protection LR, LS, MW, ZM, ZW), Eurasian European (AL, BB, FI, IR, LR, MY, PT, UG, MZ, AT, otherwise available): CR, SM, otherwise available): indicated, for every AE, AG, AL, AM, BG, BH, BN, BR, BW, BY, CU, CZ, DE, DJ, DK, DM, GB, GD, GE, GH, GM, GT, IS, JP, KE, KG, KN, KP, KR, LS, LU, LY, MA, MD, ME, MZ, NA, NG, NI, NO, NZ, QA, RO, RS, RU, RW, SA, ST, SV, SY, TH, TJ, TM, US, UZ, VC, VN, ZA, ZM, indicated, for every ARIPO (BW, GH, NA, RW, SD, SL, ST, SZ, (AM, AZ, BY, KG, KZ, RU, BE, BG, CH, CY, CZ, DE, [US/US]; 535 Middlefield Road, Suite 280, Menlo Park, DK, EE, California 94025 (US). LV, SM, (72) Inventors: STAPLETON, Shawn Patrick; 1383 Marinas- ide Crescent, Suite 1101, Vancouver, British Columbia GW, MC, TR), KM, ES, FI, FR, GB, MK, MT, NL, NO, OAPI (BF, BJ, ML, MR, NE, TD, TG). GR, CF, SN, HR, HU, IE, IS, IT, LT, LU, PL, PT, RO, RS, SE, SI, SK, CG, CI, CM, GA, GN, GQ, V6Z 2W9 (CA). TRAJKOVIC, Sasa; 4238 Southwood Published: Street, Burnaby, British Columbia V5J 2E9 (CA). — with international search report 21(3)) (Art (74) Agents: BAKER, Amanda Y. et al.; Kilpatrick Townsend & Stockton LLP, Mailstop: IP Docketing - 22, 1100 Peachtree Street, Suite 2800, Atlanta, Georgia 30309 (US). (54) Title: VIRTUAL RADIO ACCESS NETWORK USING SOFTWARE-DEFINED NETWORK OF REMOTES AND DIGITAL MULTIPLEXING SWITCHES 1200 Central Office Operator 12^ BBU Pool Fronthaul lnterfa-e 1212 1215 Core BBU Netwot 1213 77 6 2 1202 1 / 2 . BBU 1214 1217 Access DRU DRU DRU 1220 ''' 1252 1254 1253 I — BBU Pool Fronthaul Interface 1222 1225 ME Core BBU DMU — Network 223 /. 1242 1204 1226 L DMU 72 7 2 [ 4 1-11 1227 ® DRU .1-0- DRUDRU .. 0 1262 1264 1266 I'l .4t BBU Peel Central '232 Office 1230 Operator PmnBraul Interface 1235 Ir....' Core Network BBU 1233 DMU 1236 en ^206 BBU DMU C\ 1234 1237 IN GC C --..„ IN (57) : A system for routing 1-1 C Each of the one or more BBUs has N (DMUs) coupled to each other and operable 0 able to receive one or more digital inputs ,1 . Units (DRUs) coupled to the plurality the plurality of DMUs. signals in a Distributed Antenna one or more digital outputs. to route signals between from the one or more of DMUs and operable FIG. 12 System (DAS) includes one or more Base Band Units (BBUs). The system also includes a plurality of Digital Multiplexer Units the plurality of DMUs. Each of the plurality of DMUs is oper - BBUs. The system further includes a plurality of Digital Remote to transport signals between the plurality of DRUs and one or more of