Title:
METHOD AND APPARATUS FOR SUPPORTING CARRIER RESELECTION BASED ON CHANNEL BUSY RATIO IN WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/070104
Kind Code:
A1
Abstract:
According to the present invention, a user equipment (UE) selects a carrier among a plurality of carriers, receives information on a channel busy ratio (CBR) threshold from a network, and triggers a carrier reselection. When a CBR of the carrier satisfies the CBR threshold, e.g. the CBR of the carrier is below than the CBR threshold, the UE keeps using the carrier. That is, the carrier reselection is not performed when the CBR of the carrier satisfies the CBR threshold. On the other hand, when a CBR of the carrier does not satisfy the CBR threshold, the UE performs the carrier reselection.
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Inventors:
HONG JONGWOO (KR)
LEE YOUNGDAE (KR)
LEE JAEWOOK (KR)
LEE YOUNGDAE (KR)
LEE JAEWOOK (KR)
Application Number:
PCT/KR2018/011770
Publication Date:
April 11, 2019
Filing Date:
October 05, 2018
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04W72/02; H04W74/00; H04W74/08
Domestic Patent References:
| WO2017160070A1 | 2017-09-21 | |||
| WO2017150959A1 | 2017-09-08 |
Other References:
CATT: "Carrier configuration and carrier selection in eV2X CA", R2-1708052, 3GPP TSG RAN WG2 #99, 11 August 2017 (2017-08-11), Berlin, Germany, XP051317962
ERICSSON: "Sidelink carrier selection criteria", R2-1711493, 3GPP TSG RAN WG2 #99BIS, 28 September 2017 (2017-09-28), Prague, Czech Republic, XP051354653
"Carrier selection for CA over PC5", R2-1710651, 3GPP TSG RAN WG2 MEETING #99BIS, 29 September 2017 (2017-09-29), Prague, Czech Republic, XP051355071
CATT: "Carrier selection in eV2X", R2-1710714, 3GPP TSG RAN WG2 #99BIS, 28 September 2017 (2017-09-28), Prague, Czech Republic, XP051354346
ERICSSON: "3GPP DRAFT; R2-1711493 - SIDELINK CARRIER SELECTION CRITERIA, 3RD GENERATION PARTNERSHIP PROJECT (3GPP", vol. RAN WG2, 9 October 2017, MOBILE COMPETENCE CENTRE, article "Sidelink Carrier Selection Criteria"
See also references of EP 3677077A4
ERICSSON: "Sidelink carrier selection criteria", R2-1711493, 3GPP TSG RAN WG2 #99BIS, 28 September 2017 (2017-09-28), Prague, Czech Republic, XP051354653
"Carrier selection for CA over PC5", R2-1710651, 3GPP TSG RAN WG2 MEETING #99BIS, 29 September 2017 (2017-09-29), Prague, Czech Republic, XP051355071
CATT: "Carrier selection in eV2X", R2-1710714, 3GPP TSG RAN WG2 #99BIS, 28 September 2017 (2017-09-28), Prague, Czech Republic, XP051354346
ERICSSON: "3GPP DRAFT; R2-1711493 - SIDELINK CARRIER SELECTION CRITERIA, 3RD GENERATION PARTNERSHIP PROJECT (3GPP", vol. RAN WG2, 9 October 2017, MOBILE COMPETENCE CENTRE, article "Sidelink Carrier Selection Criteria"
See also references of EP 3677077A4
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (KR)
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