Patent SG-11201908805Q-A (SG)
Title: Packet duplication at a packet data convergence protocol (pdcp) entity
Inventor: YU YU-TING
IPC: H04W76/15
Filed: 2018-05-04
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 08 November 2018 (08.11.2018) WIPO I PCT ~ill IIIIIIIIImillion ono o Holoommoionoluom oimIE (10) International Publication Number WO 2018/204828 Al 335 Component 1 1 Carrier 340 315 (51) International Patent Classification: H04W 76/15 (2018.01) HO4L 5/00 (2006.01) (21) International Application Number: PCT/US2018/031158 (22) International Filing Date: 04 May 2018 (04.05.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/502,552 05 May 2017 (05.05.2017) US 62/651,970 03 April 2018 (03.04.2018) US 15/970,047 03 May 2018 (03.05.2018) US (71) Applicant: QUALCOMM INCORPORATED [US/US]; ATTN: International IP Administration, 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (72) Inventors: YU, Yu-Ting; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). HORN, Gavin, Bernard; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). LI, Chih-Ping; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (74) Agent: ANDERSON, Thomas D. et al.; Holland & Hart LLP, P.O. Box 11583, Salt Lake City, Utah 84147 (US). (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. (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)) (54) Title: PACKET DUPLICATION AT A PACKET DATA CONVERGENCE PROTOCOL (PDCP) ENTITY (57) : Techniques are described for operating procedures associated with packet duplication. A packet data protocol convergence protocol (PDCP) entity of a transmit- ting device may duplicate a received packet to form a set of copied packets. Each packet in the set of copied packets may include the information of the received packet. Each packet of the set of copied packets may be transmitted using a different radio link control 0 (RLC) entity. Procedures are described for configuring duplication bearers. Procedures are described for activating or deactivating packet duplication. Procedures are described for handling RLC entities at deactivation. Procedures are described for discarding some duplicate packets after a packet has been successfully decoded by a receiving device. Procedures are described for delaying transmission of duplicate packets to improve effi- FIG. 3A , 05 cient use of communication resources. Procedures are described for buffer status report (BSR) reporting for duplication bearers.