Title:
METHOD AND APPARATUS FOR PERFORMING RANDOM ACCESS IN WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/190240
Kind Code:
A1
Abstract:
A method, by a terminal, of performing a random access in a wireless communication system is provided. The method includes identifying a random access occasion configured for an active uplink (UL) bandwidth part (BWP) of a serving cell and when the serving cell is a special cell (SpCell) and an identity (ID) of an active downlink (DL) BWP does not correspond to an ID of the active UL BWP, switching the active DL BWP to a DL BWP with ID corresponding to the ID of the active UL BWP, based on BWP configuration information for the serving cell, and performing a random access on the switched DL BWP.
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Inventors:
JANG JAEHYUK (KR)
KIM SOENGHUN (KR)
KIM SOENGHUN (KR)
Application Number:
PCT/KR2019/003665
Publication Date:
October 03, 2019
Filing Date:
March 28, 2019
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H04W74/08; H04W72/04; H04W74/00
Domestic Patent References:
| WO2018030711A1 | 2018-02-15 |
Other References:
3GPP: "NR: MAC protocol specification (Release 15)", 3GPP; TSG RAN; TS 38.321, vol. RAN WG2, no. V15.0.0, 4 January 2018 (2018-01-04), XP051392362
ZTE CORPORATION ET AL.: "Discussion on the configuration of initial BWP/first BWP on Scell", R2-1802017, 3GPP TSG RAN WG2 MEETING #101, vol. RAN WG2, 20 February 2018 (2018-02-20), Athens, Greece, XP051400774
OPPO ET AL.: "Prevent BWP switching for PDSCH/PUSCH transmission", R2-1801761, 3GPP TSG RAN WG2 MEETING #101, vol. RAN WG2, 13 February 2018 (2018-02-13), Athens, Greece, XP051398954
HUAWEI ET AL.: "Further considerations on RACH related BWP issues", R2-1801815, 3GPP TSG RAN WG2 MEETING #101, vol. RAN WG2, 16 February 2018 (2018-02-16), Athens, Greece, XP51400051
SAMSUNG: "Corrections for BWP switching", 3GPP DRAFT; R2-1801467, pages 1 - 15
"3GPP DRAFT; R2-1803061", MEDIATEK INC, article "BWP ambiguity for 1-15 contention-based RACH procedure"
NOKIA ET AL.: "BWP switch interaction with contention free BFR preamble", 3GPP DRAFT; R2-1803229
See also references of EP 3750369A4
ZTE CORPORATION ET AL.: "Discussion on the configuration of initial BWP/first BWP on Scell", R2-1802017, 3GPP TSG RAN WG2 MEETING #101, vol. RAN WG2, 20 February 2018 (2018-02-20), Athens, Greece, XP051400774
OPPO ET AL.: "Prevent BWP switching for PDSCH/PUSCH transmission", R2-1801761, 3GPP TSG RAN WG2 MEETING #101, vol. RAN WG2, 13 February 2018 (2018-02-13), Athens, Greece, XP051398954
HUAWEI ET AL.: "Further considerations on RACH related BWP issues", R2-1801815, 3GPP TSG RAN WG2 MEETING #101, vol. RAN WG2, 16 February 2018 (2018-02-16), Athens, Greece, XP51400051
SAMSUNG: "Corrections for BWP switching", 3GPP DRAFT; R2-1801467, pages 1 - 15
"3GPP DRAFT; R2-1803061", MEDIATEK INC, article "BWP ambiguity for 1-15 contention-based RACH procedure"
NOKIA ET AL.: "BWP switch interaction with contention free BFR preamble", 3GPP DRAFT; R2-1803229
See also references of EP 3750369A4
Attorney, Agent or Firm:
Y.P.LEE,MOCK & PARTNERS (KR)
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