Patent SG-11201804900Q-A (SG)
Title: Enhanced fallback to in-band mode for emergency calling
Inventor: EDGE STEPHEN WILLIAM
IPC: H04W4/90
Filed: 2016-12-15
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property , Organization M1111101110101011111 HO 1111101110111 HO 11101 HEM III 11 International Bureau ... .1 j (10) International Publication Number (43) International Publication Date ..... .....!;,' WO 2017/127186 Al 27 July 2017 (27.07.2017) WIPO I PCT (51) International Patent Classification: (81) Designated States (unless otherwise indicated, for every HO4L 1/00 (2006.01) H04111 3/51 (2006.01) kind of national protection available): AE, AG, AL, AM, HO4L 1/18 (2006.01) H04W 4/22 (2009.01) 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, (21) International Application Number: DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, PCT/US2016/066834 HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, (22) International Filing Date: KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, 15 December 2016 (15.12.2016) MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, (25) Filing Language: English RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, (26) Publication Language: English TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (30) Priority Data: 62/286,432 24 January 2016 (24.01.2016) US (84) Designated States (unless otherwise indicated, for every 62/292,761 8 February 2016 (08.02.2016) US kind of regional protection available): ARIPO (BW, GH, 15/191,923 24 June 2016 (24.06.2016) US GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, (71) Applicant: QUALCOMM INCORPORATED [US/US]; TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, Attn: International IP Administration, 5775 Morehouse DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, Drive, San Diego, California 92121-1714 (US). LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, (72) Inventors: EDGE, Stephen Willian; 5775 Morehouse SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, Drive, San Diego, California 92121 (US). LEUNG, GW, KM, ML, MR, NE, SN, TD, TG). Nikolai Konrad; 5775 Morehouse Drive, San Diego, Cali- Declarations under Rule 4.17: fornia 92121 (US). — as to applicant's entitlement to apply for and be granted a (74) Agents: MCMILLAN, Scott L. et al.; Mailstop: IP Dock- patent (Rule 4.17(ii)) eting - 22, 1100 Peachtree St., Suite 2800, Atlanta, Georgia as to the applicant's entitlement to claim the priority of the 30309 (US). earlier application (Rule 4.1 7(iii)) [Continued on next page] (54) Title: ENHANCED FALLBACK TO IN -BAND MODE FOR EMERGENCY I 410 430 r I ( ...- i - 400 r 450 , CALLING (57) : Techniques are disclosed for in- creasing the reliability of transferring data via in- band signaling in a audio channel of a communic- ation network. Techniques include causing an au- dio decoding process to modify the decoding of I Ad D aLtwe Acoder Switch audio signals for the audio channel based on ob - AUDIO taining an indication of in-band signaling. The OUTPUT I I De 495 I.- modified decoding may replace an adaptive de-jit- ter buffer by a static de jitter buffer or increase VolP . INPUT, r _r. 480 the buffering time of an adaptive de-jitter buffer. The decoded audio signals may be provided to an I I I (.- 420 r 440 I 1 r 460 1 (-- 4 70 1 in-band message detector, an audio encoder or an I I ta s t s i c oj Je at c c o li de a I I M Message I I MESSAGE audio playback device based on the indication of OUTPUT in-band signaling. The techniques may be em- I I I -1-* I Modem s s a g e Decoder -4- I I -÷ ployed by a user equipment, a media gateway control function or a media gateway to improve Il I I L GC 11 IN N 1—I --..... IN 1—I 0 N C I Inband Message Detector I 1— J Buffering and Decoding Process FIG. 4 the reliability of in-band transfer of a minimum set of data (MSD) fora Next Generation eCall. WO 2017/127186 Al 1#11101M01111E111 IIIIIOIDEMOM011010110111011MOVON Published: — with international search report (Art. 21(3))