Patent SG-11201902087X-A (SG)
Title: Dci design for multi-user superposition transmission
Inventor: SUN JING
IPC: H04B7/0452
Filed: 2017-09-20
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property :::` , MD HIM 01E101011M 3E1 0 0111111E1M 11101fl IDIOM OEN Organization International Bureau (10) International Publication Number 03 (43) International Publication Date .....•\"\"- WO 2018/084949 Al 11 May 2018 (11.05.2018) WIPO I PCT (51) International Patent Classification: (72) Inventors: SUN, Jing; c/o QUALCOMM INCORPO- H04B 7/0452 (2017.01) RATED, 5775 Morehouse Drive, San Diego, California 92121-1714 (US). CHEN, Wanshi; c/o QUALCOMM IN- (21) International Application Number: CORPORATED, 5775 Morehouse Drive, San Diego, Cali- PCT/US2017/052546 fornia 92121-1714 (US). GAAL, Peter; c/o QUALCOMM (22) International Filing Date: INCORPORATED, 5775 Morehouse Drive, San Diego, 20 September 2017 (20.09.2017) California 92121-1714 (US). (25) Filing Language: English (74) Agent: HODGES, Jonas J. et al.; ARENT FOX LLP, (26) Publication Language: English 1717 K Street NW, Washington, District of Columbia 20006-5344 (US). (30) Priority Data: (81) Designated States (unless otherwise indicated, for every 62/416,661 02 November 2016 (02.11.2016) US kind of national protection available): AE, AG, AL, AM, 15/708,687 19 September 2017 (19.09.2017) US AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, (71) Applicant: QUALCOMM INCORPORATED [US/US]; CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, ATTEN: International IP Administration, 5775 Morehouse DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, Drive, San Diego, California, US 92121-1714 (US). 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, (54) Title: DCI DESIGN FOR 500 .._., 4 = i 510 - ,-, ON (57) : Wireless networks 71' streams over a shared downlink c:N MULTI-USER SUPERPOSITION TRANSMISSION 0 0 5 ' s' ,,- $5- -- . 4\ 1- OP' 5 0 Olt 9\' 'V Second DCI gck d DCI 5 j 0 IA , Tr -'412 allsMissio n s80 -------------______________ FIG. 5 support MU-MIMO transmission in which a base station transmits multiple spatial layers or spatial resource to multiple UEs. However, UEs participating DL Transmission 580 Decoding based on MU- 520 Decoding based on MU- MIMO in the information assistance field 530 MIMO assistance information field 540 Decoding based on MU- MIMO assistance information field MU-MIMO transmission may need to 71' manage interference associated with spatial streams intended for other users. In an aspect of the disclosure, a method, a computer-read- = able medium, and an apparatus are provided. The apparatus may be configured to provide an MU-MIMO transmission to a plurality ---- of user UEs over a same set of resource blocks. The apparatus may be configured to generate a DCI message for each UE. The DCI '1-1 a't message may indicate a DL grant to each UE and include an MU-MIMO assistance information field that provides each UE with C interference information to better decode the spatial layers. N C [Continued on next page] WO 2018/084949 Al MIDEDIMOMOIDEIREEMOOMMMOIMOIRIONVOIMIE 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). Published: — with international search report (Art. 21(3))