Title:
UPLINK TRANSMIT SWITCHING ACROSS CARRIER AGGREGATION COMPONENT CARRIERS
Document Type and Number:
WIPO Patent Application WO/2021/208052
Kind Code:
A1
Abstract:
Aspects of the disclosure relate to a user equipment (UE) providing a downlink interruption time to complete an uplink transmit switching operation to switch a transmit chain from a component carrier (CC) that utilizes FDD to a CC that utilizes TDD; initiating an uplink switching operation for an upcoming slot; receiving a SLIV value indicative of a start symbol value S for which the base station has scheduled a next downlink; determining, based on the start value, that downlink using the FDD CC is scheduled to be inhibited for a contiguous period of time including a transient time and the downlink interruption time; and uploading data via the second CC using the switched transmit chain and a second transmit chain, wherein uploading via the first component carrier is inhibited during the second period of time. Other aspects, embodiments, and features are also claimed and described.
Inventors:
CAO YIQING (US)
GAAL PETER (US)
VINTOLA TIMO VILLE (US)
GAAL PETER (US)
VINTOLA TIMO VILLE (US)
Application Number:
PCT/CN2020/085262
Publication Date:
October 21, 2021
Filing Date:
April 17, 2020
Export Citation:
Assignee:
QUALCOMM INC (US)
CAO YIQING (CN)
GAAL PETER (US)
VINTOLA TIMO VILLE (US)
CAO YIQING (CN)
GAAL PETER (US)
VINTOLA TIMO VILLE (US)
International Classes:
H04W72/04; H04W72/12
Domestic Patent References:
| WO2018005481A1 | 2018-01-04 |
Foreign References:
| US20190149365A1 | 2019-05-16 |
Other References:
QUALCOMM INCORPORATED: "Discussion on 1Tx-2Tx switching impact in RAN1", 3GPP DRAFT; R1-2002516, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20200420 - 20200430, 11 April 2020 (2020-04-11), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051875630
VIVO: "Other aspects on carrier aggregation", 3GPP DRAFT; R1-1803841_OTHER ASPECTS ON CARRIER AGGREGATION, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Sanya, China; 20180416 - 20180420, 15 April 2018 (2018-04-15), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051426136
RAN4: "LS on UE Tx switching period delay and DL interruption", 3GPP DRAFT; R1-2001522, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20200420 - 20200430, 27 March 2020 (2020-03-27), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051867826
VIVO: "Other aspects on carrier aggregation", 3GPP DRAFT; R1-1803841_OTHER ASPECTS ON CARRIER AGGREGATION, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Sanya, China; 20180416 - 20180420, 15 April 2018 (2018-04-15), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051426136
RAN4: "LS on UE Tx switching period delay and DL interruption", 3GPP DRAFT; R1-2001522, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20200420 - 20200430, 27 March 2020 (2020-03-27), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051867826
Attorney, Agent or Firm:
NTD PATENT & TRADEMARK AGENCY LTD. (CN)
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