SG11201907117YA - Mutual information based polar code construction - Google Patents

Abstract

f 315-f W O 20 18/ 166 25 6 Al (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 20 September 2018 (20.09.2018) WI P0 I P C T 0111111010 0111 °nolo VIII oimIE (10) International Publication Number WO 2018/166256 Al Stage Second Siagd 310b First Si2gd 310- Mutual Infarmalion 305 315-c w 315-d , w (51) International Patent Classification: HO4L 1/00 (2006.01) (21) International Application Number: PCT/CN2017/116075 (22) International Filing Date: 14 December 2017 (14.12.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: PCT/CN2017/076585 14 March 2017 (14.03.2017) CN PCT/CN2017/079292 01 April 2017 (01.04.2017) CN (71) Applicant: QUALCOMM INCORPORATED [US/US]; ATTN: International IP Administration, 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (72) Inventors; and (71) Applicants (for US only): YANG, Yang [CN/US]; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). JIANG, Jing [CN/US]; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). SARKIS, Gabi [CA/US]; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). WEI, Chao [CN/CN]; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). LI, Jian [CN/CN]; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). XU, Changlong [CN/CN]; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). SANKAR, Hari [US/US]; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). SORIAGA, Joseph Binamira [US/US]; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (74) Agent: NTD PATENT & TRADEMARK AGENCY LIMITED; 10th Floor, Block A, Investment Plaza, 27 Jin- rongdajie, Xicheng District, 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. (54) Title: MUTUAL INFORMATION BASED POLAR CODE CONSTRUCTION (57) : Methods, systems, and devices for wireless communica- tion are described for mutual information based polar code construction. A wireless device may receive a codeword over a wireless channel, the code- word encoded using a polar code. The wireless device may identify a set -a 1 315-a w of bit locations of the polar code corresponding to information bits of an encoded information bit vector. The set of bit locations may be determined based at least in part on a reliability order of the bit locations of the polar code, and the reliability order may be determined based at least in part on a recursive model that includes at least one mutual information transfer func- tion that is applied at each polarization stage of multiple polarization stages of the polar code. The wireless device may decode the received codeword to obtain the information bit vector at the set of bit locations. 315-c FIG. 3 [Continued on next page] WO 2018/166256 Al MIDEDIMOMOIDEIREEMOMOHIMMOROMEEN (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, 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))