-
公开(公告)号：US20240405842A1
公开(公告)日：2024-12-05
申请号：US18691438
申请日：2021-11-01
Applicant: QUALCOMM Incorporated
Inventor： Saeid SAHRAEI , Hung Dinh LY , Yu ZHANG , Krishna Kiran MUKKAVILLI , Peter GAAL , Wanshi CHEN
Abstract: A reconfigurable intelligent surface (RIS) may include multiple sub-RIS, and the base station may configure the RIS and the multiple sub-RIS with RIS sync raster including multiple center frequencies. The RIS may be configured to simultaneously apply different water-markings and reflect the incident beam into different beams in different directions. The base station may perform a beam-sweeping by transmitting synchronization signal blocks (SSBs) on multiple SSB beams, and the RIS may receive one SSB beam of the multiple SSB beams and reflect the SSB beams on the RIS sync raster. A UE may be configured to monitor the base sync raster and the RIS sync raster for a suitable SSB beam, and transmit a feedback report to the base station indicating the suitable beam. The base station may configure the RIS based on the feedback report received from the base station for beam management.
-
公开(公告)号：US20240405833A1
公开(公告)日：2024-12-05
申请号：US18691632
申请日：2021-11-08
Applicant: QUALCOMM Incorporated
Inventor： Hyojin LEE , Yu ZHANG , Kexin XIAO , Yi HUANG
IPC: H04B7/06 , H04B7/0456 , H04L5/00
Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may transmit, from a UE to a base station, one or more reference signals over a channel. The UE may receive, from the base station based at least in part on transmitting the one or more reference signals, control signaling indicating a precoding matrix indicator (PMI) and a rank indicator (RI) based at least in part on the UE having at least eight transmit antennas and based at least in part on a phase difference between different subsets of transmit antennas of the at least eight transmit antennas. The UE may transmit, to the base station, an uplink transmission configured according to the PMI and the RI.
-
公开(公告)号：US20240389100A1
公开(公告)日：2024-11-21
申请号：US18693866
申请日：2021-11-22
Applicant: QUALCOMM Incorporated
Inventor： Abdelrahman Mohamed Ahmed Mohamed IBRAHIM , Ahmed ELSHAFIE , Krishna Kiran MUKKAVILLI , Muhammad Sayed Khairy ABDELGHAFFAR , Ahmed Attia ABOTABL , Renqiu WANG , Pinar SEN , Seyong PARK , Naga BHUSHAN , Yu ZHANG
IPC: H04W72/20 , H04B7/0413 , H04L5/14
Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may transmit, to a second wireless device, a message indicating a capability of the first wireless device to support full-duplex line-of-sight (LOS) multiple-input multiple-output (MIMO) communications. The first wireless device may receive, from the second wireless device, control signaling indicating an uplink channel resource allocated for one or more uplink communications, a downlink channel resource allocated for one or more downlink communications, a first set of LOS MIMO transmission modes for the one or more uplink communications, and a second set of LOS MIMO transmission modes for the one or more downlink communications. The uplink channel resource may at least partially overlap with the downlink channel resource in time, frequency, or both. The first wireless device may communicate the one or more uplink communications and the one or more downlink communications based on the control signaling.
-
公开(公告)号：US20240388328A1
公开(公告)日：2024-11-21
申请号：US18695731
申请日：2021-11-30
Applicant: QUALCOMM Incorporated
Inventor： Ahmed ELSHAFIE , Alexandros MANOLAKOS , Yu ZHANG , Hung Dinh LY , Saeid SAHRAEI
Abstract: Aspects of the present disclosure provide techniques for configuring RIS components in order to achieve a certain object. According to certain aspects, a first device may participate in a first training procedure to obtain a set of channel estimates corresponding to different paths between a second device and the first device involving reflections from different reconfigurable intelligent surface (RIS) components, participate in a second training procedure, using the set of channel estimates, to obtain a combining vector of coefficients to configure the RIS components based on at least one objective, and communicate with the second device with the RIS components configured according to the combining vector.
-
公开(公告)号：US20240380450A1
公开(公告)日：2024-11-14
申请号：US18689322
申请日：2021-11-18
Applicant: QUALCOMM Incorporated
Inventor： Abdelrahman Mohamed Ahmed Mohamed IBRAHIM , Juergen CEZANNE , Renqiu WANG , Danlu ZHANG , Naga BHUSHAN , Pinar SEN , Seyong PARK , Yu ZHANG , Muhammad Sayed Khairy ABDELGHAFFAR , Krishna Kiran MUKKAVILLI , Hwan Joon KWON , Tingfang JI
IPC: H04B7/0456
Abstract: Methods, systems, and devices for wireless communications are described. A transmitted may use a closed loop precoder for line-of-sight (LOS) multiple-input multiple-output (MIMO) communications that uses information such as distance feedback or LOS MIMO channel state feedback. A closed loop precoder may be associated with less overhead than a precoder based on full channel knowledge, such as an SVD precoder. A receiver may estimate a channel based on channel state information reference signals transmitted by the transmitter and calculate a spectral efficiency for one or more precoders of a set of precoders associated with the channel for a LOS MIMO mode. The receiver may send feedback to the transmitter that indicates a selected precoder of the set of LOS MIMO precoders based on the calculated spectral efficiencies. The transmitter may precode messages using the reported closed loop precoder.
-
Patent Agency Ranking
276.发明申请公开(公告)号：US20240380438A1
公开(公告)日：2024-11-14
申请号：US18684639
申请日：2021-10-27
Applicant: QUALCOMM Incorporated
Inventor： Ahmed ELSHAFIE , Yu ZHANG , Sony AKKARAKARAN , Alexandros MANOLAKOS , Seyedkianoush HOSSEINI , Hwan Joon KWON
Abstract: Certain aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for reconfigurable intelligent surface (RIS) communication using RIS wake up signals (WUSs). A method that may be performed by a RIS includes determining resources for WUS transmissions, based on a WUS resource configuration, receiving, from a node, a WUS transmitted on the determined resources, and determining to wake DETERMINE, BY A RECONFIGURABLE INTELLIGENT SURFACE up a controller of the RIS, a surface of the RIS, or both based on the received WUS.
-
277.发明申请公开(公告)号：US20240373368A1
公开(公告)日：2024-11-07
申请号：US18572706
申请日：2021-08-16
Applicant: QUALCOMM Incorporated
Inventor： Hung Dinh LY , Saeid SAHRAEI , Yu ZHANG , Krishna Kiran MUKKAVILLI
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.
-
公开(公告)号：US20240364387A1
公开(公告)日：2024-10-31
申请号：US18291141
申请日：2021-09-17
Applicant: QUALCOMM Incorporated
CPC classification number: H04B7/04013 , H04L5/0048 , H04W72/20
Abstract: Methods, systems, and devices for wireless communications are described. For instance, a base station may transmit, to a user equipment (UE), control signaling indicating a configuration for transmitting a reference signal for reconfigurable surface configuration. The base station may receive, via a reconfigurable surface, the reference signal based on transmitting the control signaling. For instance, the reconfigurable surface may reflect the reference signal to the base station using a first configuration of the reconfigurable surface. The base station may transmit, to a controller of the reconfigurable surface, a set of parameters for configuring the reconfigurable surface to a second configuration for communications between the base station and the UE based on receiving the reference signal via the reconfigurable surface.
-
279.发明公开公开(公告)号：US20240356588A1
公开(公告)日：2024-10-24
申请号：US18291521
申请日：2021-09-29
Applicant: QUALCOMM Incorporated
Inventor： Kexin XIAO , Hyojin LEE , Yu ZHANG , Yi HUANG , Muhammad Sayed Khairy ABDELGHAFFAR , Runxin WANG , Krishna Kiran MUKKAVILLI
IPC: H04B7/0404 , H04B7/0456
CPC classification number: H04B7/0404 , H04B7/0456
Abstract: Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) may communicate on first and second carriers, and may support either two transmit chains or three transmit chains on a second carrier. A base station may configure different sounding reference signal (SRS) resources for different numbers of transmit chains. SRS resources configured with two ports may indicate two transmit chains, and SRS resource configured with three ports may indicate three transmit chains. The base station may indicate an index associated with an SRS resource, and the UE may select (e.g., based on a mapping between the SRS Configuration Information resource index and a number of SRS ports and a number of transmit chains), a corresponding SRS resource, number of ports, number of transmit chains, or any combination thereof. The base station may indicate a number of transmit chains for a given SRS resource based on a PMI index.
-
280.发明公开公开(公告)号：US20240356586A1
公开(公告)日：2024-10-24
申请号：US18684316
申请日：2021-10-27
Applicant: QUALCOMM Incorporated
Inventor： Ahmed ELSHAFIE , Yu ZHANG , Hwan Joon KWON
CPC classification number: H04B7/04013 , H04L5/0048
Abstract: Certain aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for reconfigurable intelligent surface (RIS) communication. A method that may be performed by a network entity includes determining a subset of RISs controlled by the network entity to be activated or deactivated and transmitting, to each RIS of the subset of RISs, signaling activating or deactivating the subset of RISs in accordance with the determination. In response to receiving such signaling, each RIS of the subset of RISs may activate or deactivate in accordance with the signaling.
-
-
-
-
-
-
-
-
-
Search Results
461
records
(took 0.026 seconds)
