Title:
TRANSMISSION CONFIGURATION INDICATION BASED BEAM SWITCHING
Document Type and Number:
WIPO Patent Application WO/2019/140256
Kind Code:
A1
Abstract:
Transmission configuration indication (TCI) states may be used to indicate beam switching for data beams and/or control beams. A total set of TCI states may be divided into subsets of TCI states. TCI states conveyed via downlink control information (DCI) may thus act as beam switching indications depending on which subset a conveyed TCI state resides. A base station may transmit an indication that such DCI based control beam switching is enabled. Based on whether TCI state (e.g., included in DCI) belongs to a first subset of TCI states or a second subset of TCI states, a wireless device (e.g., that receives the DCI) may trigger a beam switching operation. Beam switching operations may include data beam switching or both data beam switching and control beam switching. The UE may then receive a downlink control channel and a downlink data channel based on the triggered beam switching operation.
Inventors:
JOHN WILSON MAKESH PRAVIN (US)
LUO TAO (US)
LEE HEECHOON (US)
LUO TAO (US)
LEE HEECHOON (US)
Application Number:
PCT/US2019/013294
Publication Date:
July 18, 2019
Filing Date:
January 11, 2019
Export Citation:
Assignee:
QUALCOMM INC (US)
International Classes:
H04W72/04; H04L5/00
Other References:
QUALCOMM INCORPORATED: "Remaining details on QCL", vol. RAN WG1, no. Reno, Nevada, USA; 20171127 - 20171201, 18 November 2017 (2017-11-18), XP051370133, Retrieved from the Internet
"3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Physical layer procedures for data (Release 15)", 3GPP STANDARD; TECHNICAL SPECIFICATION; 3GPP TS 38.214, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. V15.0.0, 3 January 2018 (2018-01-03), pages 1 - 71, XP051392264
SAMSUNG: "On Beam Management, Measurement and Reporting", vol. RAN WG1, no. Reno, USA; 20171127 - 20171201, 17 November 2017 (2017-11-17), XP051368939, Retrieved from the Internet
QUALCOMM INCORPORATED: "Remaining Details on QCL", vol. RAN WG1, no. Vancouver, Canada; 20180122 - 20180126, 13 January 2018 (2018-01-13), XP051385137, Retrieved from the Internet
"3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Physical layer procedures for data (Release 15)", 3GPP STANDARD; TECHNICAL SPECIFICATION; 3GPP TS 38.214, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. V15.0.0, 3 January 2018 (2018-01-03), pages 1 - 71, XP051392264
SAMSUNG: "On Beam Management, Measurement and Reporting", vol. RAN WG1, no. Reno, USA; 20171127 - 20171201, 17 November 2017 (2017-11-17), XP051368939, Retrieved from the Internet
QUALCOMM INCORPORATED: "Remaining Details on QCL", vol. RAN WG1, no. Vancouver, Canada; 20180122 - 20180126, 13 January 2018 (2018-01-13), XP051385137, Retrieved from the Internet
Attorney, Agent or Firm:
SCHRAMM, Paul, M. (US)
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