Patent SG-11201807679X-A (SG)
Title: Methods and devices for determining precoder parameters in a wireless communication network
Inventor: FAXÉR SEBASTIAN
IPC: H04B7/0417
Filed: 2017-03-29
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date WO 2017/168349 Al 5 October 2017 (05.10.2017) WIPO I PCT (51) International Patent Classification: HO4B 77041 7 (2017.01) H04B 7/04 (2017.01) (21) International Application Number: PCT/IB2017/051803 (22) International Filing Date: 29 March 2017 (29.03.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/315,972 31 March 2016 (31.03.2016) US 62/316,820 1 April 2016 (01.04.2016) US 62/316,857 1 April 2016 (01.04.2016) US (71) Applicant: TELEFONAKTIEBOLAGET LM ERIC- SSON (PUBL) [SE/SE]; 164 83 Stockholm (SE). (72) Inventors: FAXER, Sebastian; Frihetsvkgen 33, 177 53 Jarfalla (SE). BERGMAN, Svante; Selmedalsringen 8, 129 36 Hagersten (SE). (74) Agents: DUFORT, Julie et al.; Ericsson Canada Inc., Pat- ent Department, 8275 Route Transcanadienne, Saint- Laurent, Quebec H4S OB6 (CA). (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, 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. (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). Declarations under Rule 4.17: as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) Published: — with international search report (Art. 21(3)) — (54) Title: METHODS AND DEVICES FOR DETERMINING PRECODER PARAMETERS IN A WIRELESS COMMUNICA- TION NETWORK 1100 Selecting a subset of beams from a plurality of orthogonal beams 1110 Obtaining power levels of the selected subset of beams for generating a first factor of the precoder 1120 Obtaining phases of the selected subset of beams for generating a second factor of the precoder, wherein the first factor and the second factor are part of the parameters of the precoder 1130 Fig. 11 (57) : A method and a device for determining parameters of a precoder in a wireless communication system are disclosed. According to one aspect, a method includes selecting a subset of beams corresponding to a plurality of orthogonal beams; obtaining power levels of the selected subset of beams for generating a first factor of the precoder and obtaining phases of the selected subset of beams for generating a second factor, wherein the first factor and the second factor are part of the parameters of the precoder. 11111111111111011101111111111101011111011101111111111111011111111110111111111110111111 W O 20 17 / 1683 49 Al