公开(公告)号：US11601917B2

公开(公告)日：2023-03-07

申请号：US17303559

申请日：2021-06-02

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Sony Akkarakaran ,  Jung Ho Ryu ,  Tao Luo ,  Junyi Li

IPC: H04W4/00 ,  H04W72/02 ,  H04B7/06 ,  H04W72/0453 ,  H04W72/044

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a set of frequency components to use in sidelink operation based at least in part on an inter-band carrier aggregation configuration. In some aspects, the set of frequency components includes one or more frequency components in a first frequency band and one or more frequency components in a second frequency band. The UE may communicate with another UE over a sidelink using one or more beams that are selected based at least in part on channel conditions associated with the one or more frequency components in the first frequency band and channel conditions associated with the one or more frequency components in the second frequency band. Numerous other aspects are provided.

公开(公告)号：US11589325B2

公开(公告)日：2023-02-21

申请号：US17212781

申请日：2021-03-25

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Sony Akkarakaran ,  Kapil Gulati ,  Tao Luo ,  Junyi Li ,  Ling Ding ,  Tianyang Bai ,  Qian Zhang ,  Kiran Venugopal

IPC: H04W56/00 ,  H04W64/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may determine whether to transmit a sidelink timing synchronization signal to a second UE based at least in part on a sidelink zone in which the first UE is located and a sidelink zone in which the second UE is located. The first UE may selectively transmit the sidelink timing synchronization signal to the second UE based at least in part on determining whether to transmit the sidelink timing synchronization signal to the second UE. Numerous other aspects are provided.

公开(公告)号：US11576145B2

公开(公告)日：2023-02-07

申请号：US17111768

申请日：2020-12-04

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Jung Ho Ryu ,  Junyi Li ,  Tianyang Bai

IPC: H04W68/00 ,  H04L1/00 ,  H04W4/40 ,  H04L27/36 ,  H04W8/24

Abstract: Methods, systems, and devices for wireless communications are described that allow for a first user equipment (UE) to forward a transmission from a second UE to a base station. The forwarding techniques may include the first UE performing a decoding procedure on a message received from the second UE via a sidelink communications link. Based on the results of the decoding procedure, the first UE may select an amplify and forward (AF), decode and forward (DF), or a combination thereof to forward the message from the second UE to the base station. The base station may receive the forward messages and, in some cases, a message directly from the second UE, and may determine decoding weights to use to jointly decode the two messages received at the base station.

公开(公告)号：US11552694B2

公开(公告)日：2023-01-10

申请号：US17327094

申请日：2021-05-21

Applicant: QUALCOMM Incorporated

Inventor： Kiran Venugopal ,  Jung Ho Ryu ,  Makesh Pravin John Wilson ,  Tao Luo

IPC: H04B7/08 ,  H04W76/19 ,  H04W24/10 ,  H04W36/06 ,  H04W36/30 ,  H04W36/36 ,  H04W48/12 ,  H04W72/04 ,  H04W72/08

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to cell recovery techniques. One example method generally includes receiving, at a user-equipment (UE), at least one pilot signal via a secondary cell, receive, via a primary cell, a first message triggering reporting of at least one preferred beam for communication via the secondary cell, determining the preferred beam based on the at least one pilot signal, transmitting, via the primary cell, a report indicating the at least one preferred beam, and communicating data via the secondary cell and via the preferred beam.

公开(公告)号：US11546105B2

公开(公告)日：2023-01-03

申请号：US17007349

申请日：2020-08-31

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud Taherzadeh Boroujeni ,  Juan Montojo ,  Sony Akkarakaran ,  Tao Luo ,  Junyi Li ,  Jung Ho Ryu ,  Kapil Gulati ,  Hong Cheng

IPC: H04W4/00 ,  H04L5/00

Abstract: Some aspects provide a method for wireless communication by a first wireless device. The method generally includes transmitting one or more sidelink channel state information (CSI) reference signals (CSI-RSs) targeting a group of user equipments (UEs). The method generally includes requesting one or more CSI reports from a selected one or more UEs of the group of UEs. The method generally includes receiving one or more CSI reports from the selected one or more UEs.

公开(公告)号：US11546046B2

公开(公告)日：2023-01-03

申请号：US17006300

申请日：2020-08-28

Applicant: QUALCOMM Incorporated

Inventor： Tianyang Bai ,  Juergen Cezanne ,  Vasanthan Raghavan ,  Jung Ho Ryu ,  Ashwin Sampath ,  Junyi Li

IPC: H04B7/155 ,  H04L25/03

Abstract: Systems, apparatuses, and methods for enhancement for amplify-and-forward relay. Instead of merely passing received signal from a source, relay may equalize the received signal based on reference signal contained in the received signal, before amplifying and transmitting the signal to a destination. Compared to amplify-and-forward, equalize-and-forward may compensate the received source signal for various imperfections such as channel distortions and phase errors, using demodulation reference signal and phase tracking reference signal. The relay may apply Fast Fourier Transform (FFT) to equalize the signal in tone domain.

公开(公告)号：US11515910B2

公开(公告)日：2022-11-29

申请号：US17457775

申请日：2021-12-06

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Jung Ho Ryu ,  Junyi Li

IPC: H04B7/0417 ,  H04B7/0408 ,  H04B7/08 ,  H04B7/06

Abstract: Various aspects of the present disclosure generally relate to wireless communication. A transmitter node and a relay node transmit, to a base station, feedback related to complex channel estimates associated with beam pairs providing viable paths for a first link between the transmitter node and the base station, a second link between the relay node and the base station, and a third link between the transmitter node and the relay node. The transmitter node transmits a signal to the base station using a transmit beam associated with a first beam pair and to the relay node using a transmit beam associated with a second beam pair. The base station receives the signal from the transmitter node and an estimate of the signal from the relay node via a receive beam configured based at least in part on the complex channel estimates included in the feedback. Numerous other aspects are provided.

公开(公告)号：US11503492B2

公开(公告)日：2022-11-15

申请号：US16943482

申请日：2020-07-30

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Kapil Gulati ,  Junyi Li ,  Tianyang Bai ,  Sony Akkarakaran ,  Tao Luo ,  Vasanthan Raghavan

IPC: H04W28/02 ,  H04W72/04 ,  H04W72/08 ,  H04L47/215 ,  H04W24/08 ,  H04W72/10

Abstract: An apparatus for wireless communication based on sidelink accumulates a value, e.g., a token value, based on an accumulation rate of a transmit beam. When the apparatus has a packet for transmission over sidelink, the apparatus determines whether to transmit the packet over the sidelink based on a current accumulation of the value. The accumulation may be based on any of a CBR, a CR, and/or a feedback rate. A base station may measure interference on an access link of the base station and transmit a side link parameter that controls accumulation of a value at a transmitting device for the transmission of sidelink communication based on the measured interference.

公开(公告)号：US11456823B2

公开(公告)日：2022-09-27

申请号：US16896879

申请日：2020-06-09

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Tao Luo ,  Junyi Li ,  Sony Akkarakaran

IPC: H04L1/18 ,  H04W72/04 ,  H04W16/28 ,  H04W88/14 ,  H04W92/18

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a receiver may receive, from a transmitter, a sidelink communication and sidelink control information (SCI), associated with the sidelink communication, that indicates one or more distance parameter and angle parameter combinations for hybrid automatic repeat request (HARQ) feedback. The receiver may determine that the receiver satisfies a distance parameter and angle parameter combination of the one or more distance parameter and angle parameter combinations. The receiver may transmit, based at least in part on determining that the receiver satisfies the distance parameter and angle parameter combination, HARQ feedback for the sidelink communication to the transmitter on a sidelink. Numerous other aspects are provided.

公开(公告)号：US20220279499A1

公开(公告)日：2022-09-01

申请号：US17750182

申请日：2022-05-20

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Sony Akkarakaran ,  Jung Ho Ryu ,  Junyi Li

IPC: H04W72/04 ,  H04W24/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may establish an access link with a base station using one or more of a first beam or a first set of beams. The UE may therefore receive, via the access link, control signaling indicating a first configuration for a sidelink channel. In some examples, the UE may switch from the first configuration to a second configuration for the sidelink channel based on detection of an event for one or more of the first beam or the first set of beams and communicate with a second UE via the sidelink channel using the second configuration.