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Title:
TWO-STAGE RESOURCE SPREAD MULTIPLE ACCESS (RSMA) DESIGN
Document Type and Number:
WIPO Patent Application WO/2019/140239
Kind Code:
A1
Abstract:
A two stage scrambling design is provided for generating and decoding Resource Spread Multiple Access (RSMA) modulated streams. A User equipment (UE) scrambles each data stream of a set of data streams using a first scrambling sequence to generate a first set of scrambled data streams, and then scrambles the first set of scrambled data streams using a second scrambling sequence to generate a second set of scrambled data streams, wherein the second scrambling sequence is longer than the first scrambling sequence. The UE then transmits the second set of scrambled data streams. A receiving base station determines the first and second scrambling sequences used by the UE and decodes the transmissions received from the UE based on the determined scrambling sequences.

Inventors:
PARK, Seyong (5775 Morehouse Drive, San Diego, California, 92121-1714, US)
LEI, Jing (5775 Morehouse Drive, San Diego, California, 92121-1714, US)
WANG, Renqiu (5775 Morehouse Drive, San Diego, California, 92121-1714, US)
SORIAGA, Joseph Binamira (5775 Morehouse Drive, San Diego, California, 92121-1714, US)
JIANG, Jing (5775 Morehouse Drive, San Diego, California, 92121-1714, US)
JI, Tingfang (5775 Morehouse Drive, San Diego, California, 92121, US)
SUNDARARAJAN, Jay Kumar (5775 Morehouse Drive, San Diego, California, 92121-1714, US)
TOKGOZ, Yeliz (5775 Morehouse Drive, San Diego, California, 92121-1714, US)
BHUSHAN, Naga (5775 Morehouse Drive, San Diego, California, 92121-1714, US)
Application Number:
US2019/013259
Publication Date:
July 18, 2019
Filing Date:
January 11, 2019
Export Citation:
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Assignee:
QUALCOMM INCORPORATED (ATTN: International IP Administration, 5775 Morehouse DriveSan Diego, California, 92121-1714, US)
International Classes:
H04J13/16; H04J11/00
Foreign References:
US20090219181A12009-09-03
US20100122143A12010-05-13
US201916244978A2019-01-10
Other References:
KWONHUE CHOI ET AL: "Quasi-Synchronous CDMA Using Properly Scrambled Walsh Codes as User-Spreading Sequences", IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 59, no. 7, 1 September 2010 (2010-09-01), pages 3609 - 3617, XP011309653, ISSN: 0018-9545
QUALCOMM INCORPORATED: "Resource Spread Multiple Access", vol. RAN WG1, no. Gothenburg, Sweden; 20160822 - 20160826, 21 August 2016 (2016-08-21), XP051140179, Retrieved from the Internet [retrieved on 20160821]
LENOVO: "Uplink Grant-free Access for 5G mMTC", vol. RAN WG1, no. Lisbon, Portugal; 20161010 - 20161015, 9 October 2016 (2016-10-09), XP051149441, Retrieved from the Internet [retrieved on 20161009]
QUALCOMM INCORPORATED: "Transmitter Side Signal Processing Schemes for NOMA", vol. RAN WG1, no. Sanya, China; 20180416 - 20180420, 7 April 2018 (2018-04-07), XP051414178, Retrieved from the Internet [retrieved on 20180407]
Attorney, Agent or Firm:
DETJEN, Puja S. et al. (Patterson & Sheridan, L.L.P.24 Greenway Plaza,Suite 160, Houston Texas, 77046-2472, US)
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