公开(公告)号：US11528630B2

公开(公告)日：2022-12-13

申请号：US16909747

申请日：2020-06-23

Applicant: QUALCOMM Incorporated

Inventor： Jun Zhu ,  Ling Ding ,  Raghu Narayan Challa

IPC: H04W24/10 ,  H04B7/26 ,  G01S5/14 ,  H04L25/02 ,  H04B17/309 ,  H04L1/00

Abstract: Apparatus, methods, and computer-readable media for facilitating L1 UE-side filtering for mmW frequencies are disclosed herein. An example method for wireless communication at a user equipment includes configuring a filter coefficient for a serving beam. The example method also includes applying the filter coefficient to the serving beam to determine an updated filtered measurement result. The example method also includes reporting the updated filtered measurement result to a base station.

公开(公告)号：US11522595B1

公开(公告)日：2022-12-06

申请号：US17362366

申请日：2021-06-29

Applicant: QUALCOMM Incorporated

Inventor： Jun Zhu ,  Mihir Vijay Laghate ,  Yongle Wu ,  Raghu Narayan Challa ,  Alexei Yurievitch Gorokhov

IPC: H04B7/06 ,  H04L27/26 ,  H04L25/02 ,  H04W72/08 ,  H04W72/04

Abstract: The apparatus may be a UE. The UE may be configured to measure, over a time interval, a plurality of instances of a signal received from a serving device (e.g., a base station or serving UE). The UE may further be configured to adjust, based on at least two previously measured instances of the signal, a sampling rate associated with the signal received from the serving device. The UE may further be configured to maintain a particular number (e.g., 2-10) of previously measured instances of the signal, where adjusting the sampling rate is based on the maintained particular number of previously measured instances. The particular number of previously measured instances of the signal may be used to calculate a gradient of the measurements to identify a sampling rate associated with the calculated gradient.

公开(公告)号：US20220295372A1

公开(公告)日：2022-09-15

申请号：US17677448

申请日：2022-02-22

Applicant: QUALCOMM Incorporated

Inventor： Jun Zhu ,  Mihir Vijay Laghate ,  Yongle Wu ,  Raghu Narayan Challa

IPC: H04W36/32 ,  H04W36/00 ,  H04W16/28

Abstract: Methods, systems, and devices for wireless communications are described. Generally, to determine a mobility status of a user equipment (UE), the UE may perform filtering or post-processing on one or more beam metrics. The UE may generate first order statistics for the beam metrics, and may use the first order statistics to generate second order statistics. Based on whether the second order statistics for the beam metrics converge, based on whether a detected beam metric converges at zero or a non-zero value, or any combination thereof, the UE may determine a mobility status for the UE. The UE may select appropriate beam management parameter values based on the determined mobility status.

公开(公告)号：US20220294502A1

公开(公告)日：2022-09-15

申请号：US17671922

申请日：2022-02-15

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Mohammad Ali Tassoudji ,  Raghu Narayan Challa

IPC: H04B7/0456 ,  H04B17/10 ,  H04B17/13 ,  H04B7/08

Abstract: Methods, systems, and devices for wireless communications are described for mitigation of blockages in wireless signals between wireless devices. A UE may detect that a blockage is present (e.g., a hand blockage), such as by detecting that a received signal strength from a transmitting device (e.g., a base station or access network entity) has dropped by greater than a threshold value. Based on the blockage detection, the UE may measure an amplitude of one or more reference signals at one or more antenna elements of multiple antenna elements. The UE may also measure one or more reference signals for one or more phase shifter values that are applied to the multiple antenna elements. The UE may determine a set of amplitude weightings, and a set of phase weightings, for the multiple antenna elements based on the measuring, and apply the sets of weightings for communications with the transmitting device.

公开(公告)号：US11432309B2

公开(公告)日：2022-08-30

申请号：US17037673

申请日：2020-09-30

Applicant: QUALCOMM Incorporated

Inventor： Ting Kong ,  Yongle Wu ,  Paolo Minero ,  Raghu Narayan Challa ,  Alexei Yurievitch Gorokhov

IPC: H04B7/0404 ,  H04B7/0408 ,  H04B7/12 ,  H04B17/00 ,  H04B17/14 ,  H04B17/29 ,  H04L5/00 ,  H04W24/02 ,  H04W24/08 ,  H04W24/10 ,  H04W28/02 ,  H04W28/08 ,  H04W72/04 ,  H04W72/12 ,  H04W76/15 ,  H04W76/18 ,  H04W84/02 ,  H04W88/06 ,  H04W92/02 ,  H04W92/10

Abstract: Aspects of the disclosure relate to a user equipment (UE) configured to schedule resource management procedures including measurements and tracking loop procedures. In some examples, the UE includes at least one antenna pair and two or more receivers. The UE may be configured to determine a plurality of combinations of antenna pairs and component carriers, where each component carrier is associated with a particular frequency. The UE may further be configured to schedule measurements/tracking loop procedures to available receivers first and utilize a selection algorithm to select combinations of antenna pairs and component carriers and map the selected combinations to the remaining of the available receivers to perform tracking loop procedures. Other aspects, features, and embodiments are also claimed and described.

公开(公告)号：US11368917B2

公开(公告)日：2022-06-21

申请号：US16861961

申请日：2020-04-29

Applicant: QUALCOMM Incorporated

Inventor： Ling Ding ,  Junsheng Han ,  Raghu Narayan Challa ,  Junyi Li

IPC: H04W52/14 ,  H04W52/32 ,  H04W52/36

Abstract: Method and apparatus are provided for generating and reporting actual UL transmission power. In accordance with some implementation, a UE sends a first indication of power headroom to a base station. The UE may, from the base station, one or more resources allocation for a UL transmission. UE then may determine actual transmission power to be used in the UL transmission. Upon determination, the UE may the UL transmission based on the determination and send an indication of the actual transmission power to the base station.

公开(公告)号：US11330534B2

公开(公告)日：2022-05-10

申请号：US16949574

申请日：2020-11-04

Applicant: QUALCOMM Incorporated

Inventor： Valentin Alexandru Gheorghiu ,  Raghu Narayan Challa ,  Timo Ville Vintola ,  Tienyow Liu ,  Farhad Meshkati

IPC: H04W52/34 ,  H04W52/36

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, and a base station may receive, a report that includes information related to a power headroom available to the UE at a current power level and information related to a duty cycle that the UE can sustain over a moving integration window based at least in part on a maximum permissible exposure limit. In some aspects, the base station may transmit, and the UE may receive, scheduling information based at least in part on the information related to the power headroom available to the UE at the current power level and the information related to the duty cycle that the UE can sustain over the moving integration window. Numerous other aspects are provided.

公开(公告)号：US20220094414A1

公开(公告)日：2022-03-24

申请号：US17477319

申请日：2021-09-16

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Raghu Narayan Challa ,  Mihir Vijay Laghate ,  Junyi Li

IPC: H04B7/06 ,  H04L5/00 ,  H04L25/02 ,  H04B17/345

Abstract: Methods, systems, and devices for wireless communications are described. A communication device, such as a user equipment (UE) and a base station, for example, an eNodeB (eNB), a next-generation NodeB or a giga-NodeB (either of which may be referred to as a gNB) may support techniques for transformation of analog beamforming codebooks. The communication device may modify an analog beamforming codebook based on a covariance matrix associated with interference and noise in a wireless communication system. For example, the communication device may rotate the analog beamforming codebook based on the estimated covariance matrix, or scale one or more beam weights associated with the analog beamforming codebook based on the estimated covariance matrix, or both. The communication device may thereby perform wireless communication with another communication device in the wireless communication system using the modified analog beamforming codebook.

公开(公告)号：US11277192B2

公开(公告)日：2022-03-15

申请号：US16669017

申请日：2019-10-30

Applicant: QUALCOMM Incorporated

Inventor： Hongbo Yan ,  Raghu Narayan Challa ,  Guy Wolf ,  Michael Levitsky ,  Ran Berliner ,  Awlok Singh Josan

IPC: H04B7/06 ,  H04B17/309 ,  H04W56/00 ,  H04W72/12 ,  H04W74/08 ,  H04B7/0413

Abstract: A user equipment (UE) may monitor multiple beam pair links (BPLs) including a first BPL currently used by the UE to communicate with a network node (e.g., a base station), and a second BPL. The first BPL comprises a first network beam and a first UE beam, and the second BPL comprises a second network beam and a second UE beam. The UE may decide to switch beams from using the first BPL to using the second BPL based on signaling from the network node or autonomously. When the beam switch is made, the UE switches uplink (UL) transmission from over the first UE beam to over the second UE beam. After the beam switch is made, the UE transmits in the UL over the second UE beam using UL timing adjusted based on the first and second propagation delays.

公开(公告)号：US10993236B2

公开(公告)日：2021-04-27

申请号：US16702316

申请日：2019-12-03

Applicant: QUALCOMM Incorporated

Inventor： Jun Zhu ,  Yong Li ,  Raghu Narayan Challa ,  Andrea Garavaglia ,  Yongle Wu ,  Ting Kong ,  Alexei Yurievitch Gorokhov

IPC: H04W72/04 ,  H04J11/00 ,  H04B17/327 ,  H04W56/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may use a measurement procedure for beam detection within an existing cell. The UE perform a search procedure for a first synchronization signal block (SSB) to detect a first beam of a base station. The UE may determine a first timing offset for the first SSB based on the search procedure. The UE may estimate a second timing offset for a second SSB from the base station based on the first timing offset. The UE may perform a measurement procedure for the second SSB to detect a second beam of the base station based on the second timing offset. The UE may prune fake beams based on synchronization signals used for the measurement procedure.