Title:
PATHLOSS COMPUTATION FOR POWER CONTROL IN THE PRESENCE OF RECONFIGURABLE INTERACTIVE SURFACES
Document Type and Number:
WIPO Patent Application WO/2023/019383
Kind Code:
A1
Abstract:
A method for wireless communication performed by a user equipment (UE) includes receiving multiple reference signals (RSs), each RS of the plurality of RSs being associated with a reflection from a respective reconfigurable intelligent surface (RIS), of multiple RISs, or with a direct transmission from a base station. The method also includes receiving, from the base station, a RIS configuration indicating a set of operative RISs, of the plurality of RISs, that reflect an uplink transmission from the UE. The method further includes transmitting, to the base station, an uplink message according to an uplink transmission power, the uplink transmission power being based on an effective pathloss that is a function of each pathloss of a set of pathlosses respectively associated with a set of RSs, of the multiple RSs, that are respectively associated with the set of operative RISs or the base station.
Inventors:
LY HUNG DINH (US)
SAHRAEI SAEID (US)
ZHANG YU (US)
MUKKAVILLI KRISHNA KIRAN (US)
SAHRAEI SAEID (US)
ZHANG YU (US)
MUKKAVILLI KRISHNA KIRAN (US)
Application Number:
PCT/CN2021/112695
Publication Date:
February 23, 2023
Filing Date:
August 16, 2021
Export Citation:
Assignee:
QUALCOMM INC (US)
LY HUNG DINH (US)
SAHRAEI SAEID (US)
ZHANG YU (CN)
MUKKAVILLI KRISHNA KIRAN (US)
LY HUNG DINH (US)
SAHRAEI SAEID (US)
ZHANG YU (CN)
MUKKAVILLI KRISHNA KIRAN (US)
International Classes:
H04W52/14; H04L5/00; H04W52/22; H04W52/24
Other References:
HENK WYMEERSCH ET AL: "Radio Localization and Mapping with Reconfigurable Intelligent Surfaces", ARXIV.ORG, CORNELL UNIVERSITY LIBRARY, 201 OLIN LIBRARY CORNELL UNIVERSITY ITHACA, NY 14853, 11 June 2020 (2020-06-11), XP081681498
CAI PENGHAO ET AL: "Downlink Channel Tracking for Intelligent Reflecting Surface-Aided FDD MIMO Systems", IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, IEEE, USA, vol. 70, no. 4, 2 March 2021 (2021-03-02), pages 3341 - 3353, XP011852433, ISSN: 0018-9545, [retrieved on 20210505], DOI: 10.1109/TVT.2021.3063138
ALCATEL-LUCENT SHANGHAI BELL ET AL: "Uplink Power Control Considerations for CoMP", 3GPP DRAFT; R1-111433_UL COMP POWER CONTROL_FINAL, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Barcelona, Spain; 20110509, 3 May 2011 (2011-05-03), XP050491126
CAI PENGHAO ET AL: "Downlink Channel Tracking for Intelligent Reflecting Surface-Aided FDD MIMO Systems", IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, IEEE, USA, vol. 70, no. 4, 2 March 2021 (2021-03-02), pages 3341 - 3353, XP011852433, ISSN: 0018-9545, [retrieved on 20210505], DOI: 10.1109/TVT.2021.3063138
ALCATEL-LUCENT SHANGHAI BELL ET AL: "Uplink Power Control Considerations for CoMP", 3GPP DRAFT; R1-111433_UL COMP POWER CONTROL_FINAL, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Barcelona, Spain; 20110509, 3 May 2011 (2011-05-03), XP050491126
Attorney, Agent or Firm:
NTD PATENT & TRADEMARK AGENCY LTD. (CN)
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