Patent SG-11201805161X-A (SG)
Title: Generation of polar codes with a variable block length utilizing puncturing
Inventor: XU CHANGLONG
IPC: H03M13/13
Filed: 2016-08-17
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -, Organization 111111110111101110101011111010111110111011101111110111011101101111101111011111 International Bureau ... .1 j ..... .....1 (10) International Publication Number (43) International Publication Date WO 2017/128700 Al 3 August 2017 (03.08.2017) WI P0 I P CT (51) International Patent Classification: (74) Agent: NTD PATENT & TRADEMARK AGENCY HO3M 13/13 (2006.01) LIMITED; 10th Floor, Block A, Investment Plaza, 27 Jin- rongdajie, Xicheng District, Beijing 100033 (CN). (21) International Application Number: PCT/CN2016/095661 (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, (22) International Filing Date: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, 17 August 2016 (17.08.2016) BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, (25) Filing Language: English DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, (26) Publication Language: English KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, (30) Priority Data: MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PCT/CN2016/071959 PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, 25 January 2016 (25.01.2016) CN 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: QUALCOMM INCORPORATED [US/US]; c/o International IP Administration, 5775 Morehouse (84) Designated States (unless otherwise indicated, for every Drive, San Diego, California 92121-1714 (US). kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, (72) Inventors; and TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, (71) Applicants (for US only): XU, Changlong [CN/CN]; TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, 5775 Morehouse Drive, San Diego, California 92121-1714 DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, (US). LI, Jian [CN/CN]; 5775 Morehouse Drive, San LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, Diego, California 92121-1714 (US). HOU, Jilei [US/CN]; SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, 5775 Morehouse Drive, San Diego, California 92121-1714 GW, KM, ML, MR, NE, SN, TD, TG). (US). WANG, Neng [CA/CN]; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). Published: — with international search report (Art. 21(3)) (54) Title: GENERATION OF POLAR CODES WITH A VARIABLE BLOCK LENGTH UTILIZING PUNCTURING 440 ( -500 ( 515 ( -510 I I 1 11 © r w 455 c 450 © FIG. 5 0, n. IN ot ei 435 430 11 L ----- (57) : Polar codes may be generated with a variable block length utilizing puncturing. Some puncturing schemes consider punctured bits as unknown bits, and set the log likelihood ratio (LLR) for those bits to zero; while other puncturing schemes con - .::::) N Sider punctured bits as known bits, and set the LLR for those bits to infinity Each of these puncturing schemes has been observed to O provide benefits over the other under different circumstances, especially corresponding to different coding rates or different signal to ,-..f . noise ratio (SNR). According to aspects of the present disclosure, both puncturing schemes are compared, and the puncturing scheme resulting in the better performance is utilized for transmission.