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公开(公告)号：US20210321280A1
公开(公告)日：2021-10-14
申请号：US17240339
申请日：2021-04-26
Applicant: QUALCOMM Incorporated
Inventor： Jun Zhu , Yong Li , Ruhua He , Raghu Narayan Challa
Abstract: Methods, systems, and devices for wireless communications are described. A wireless device such as a user equipment (UE) may determine a set of scheduled synchronization signal transmission times. A first subset of the set of scheduled synchronization signal transmission times may be allocated for dynamic measurement. The wireless device may select at least one candidate beam from a set of candidate beams for a dynamic measurement during one of the transmission times in the first subset. The at least one candidate beam may be selected based at least in part on a fairness metric, a signal strength metric, a timing metric, or a combination thereof. The wireless device may perform a measure procedure on the selected at least one candidate beam and may transmit a measurement report based at least in part on the measure procedure to another wireless device (e.g., a base station).
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公开(公告)号：US20210289558A1
公开(公告)日：2021-09-16
申请号：US16818796
申请日：2020-03-13
Applicant: QUALCOMM Incorporated
Inventor： Junsheng Han , Muhammad Nazmul Islam , Raghu Narayan Challa , Mihir Vijay Laghate , Amir Aminzadeh Gohari , Alexei Yurievitch Gorokhov
Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for selecting a PRACH occasion (RO) based on downlink quality, access congestion, latency (e.g., time to next available RO), beam correspondence, random access in previous transmissions, or combinations of these factors. The user equipment (UE) may detect access congestion of synchronization signal blocks (SSBs) and select the less congested SSB in the RO selection. The UE may detect the access congestion by receiving a back-off indicator from the base station, detecting a contention resolution failure, or the number or media access control (MAC) subheaders in a random access response. In some cases, the ROs associated with different SSBs have different latencies and the UE may select the earliest available RO.
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公开(公告)号：US11109333B2
公开(公告)日：2021-08-31
申请号：US16902132
申请日：2020-06-15
Applicant: QUALCOMM Incorporated
Inventor： Tianyang Bai , Muhammad Nazmul Islam , Juergen Cezanne , Sundar Subramanian , Ruhua He , Raghu Narayan Challa , Alexei Yurievitch Gorokhov , Junyi Li
Abstract: A UE may identify a first indication associated with a first signaling to be received in a time interval and identify a second indication associated with a second signaling to be received in the time interval. The UE may select to receive and receive, in the time interval, at least one of the first signaling or the second signaling based on at least one of the first or second indications. One or more of the first and second indications may be received from a BS or determined by the UE via predefined or other means. A BS may convey indications of the first and/or second signaling. The first and second indications may be transmitted sufficiently before the signaling in an effort to allow the UE to select and tune its receiver beam in the direction of the signaling to be received.
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公开(公告)号：US11057246B2
公开(公告)日：2021-07-06
申请号：US16848747
申请日：2020-04-14
Applicant: QUALCOMM Incorporated
Inventor： Juergen Cezanne , Ruhua He , Sundar Subramanian , Tao Luo , Muhammad Nazmul Islam , Junyi Li , Raghu Narayan Challa
IPC: H04L25/02 , H04B7/08 , H04B7/06 , H04B7/0456 , H04B17/27 , H04B17/309 , H04B17/382 , H04L1/00 , H04L5/00 , H04B7/0413
Abstract: Aspects of the disclosure relate to a method of operating a scheduled entity for wireless communication with a network. In some aspects, the scheduled entity transmits a message that requests a scheduling entity to transmit at least one reference signal. The scheduled entity obtains channel state information based on the at least one reference signal. The scheduled entity transmits a report that includes the channel state information. In other aspects, the scheduled entity transmits a message that requests a scheduling entity to schedule a reference signal transmission for the scheduled entity. The scheduled entity obtains an assignment of resources for transmission of the reference signal in response to the message. The scheduled entity transmits the reference signal based on the assignment of resources. Other aspects, embodiments, and features are also claimed and described.
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公开(公告)号：US10993132B2
公开(公告)日：2021-04-27
申请号：US16246421
申请日：2019-01-11
Applicant: QUALCOMM Incorporated
Inventor： Jun Zhu , Yong Li , Ruhua He , Raghu Narayan Challa
Abstract: Methods, systems, and devices for wireless communications are described. A wireless device such as a user equipment (UE) may determine a set of scheduled synchronization signal transmission times. A first subset of the set of scheduled synchronization signal transmission times may be allocated for dynamic measurement. The wireless device may select at least one candidate beam from a set of candidate beams for a dynamic measurement during one of the transmission times in the first subset. The at least one candidate beam may be selected based at least in part on a fairness metric, a signal strength metric, a timing metric, or a combination thereof. The wireless device may perform a measure procedure on the selected at least one candidate beam and may transmit a measurement report based at least in part on the measure procedure to another wireless device (e.g., a base station).
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Patent Agency Ranking
公开(公告)号：US10985964B2
公开(公告)日：2021-04-20
申请号：US16126832
申请日：2018-09-10
Applicant: QUALCOMM Incorporated
Inventor： Chinmay Shankar Vaze , Hung Dinh Ly , Alexei Yurievitch Gorokhov , Nathan Yee , Hari Sankar , Raghu Narayan Challa
Abstract: Techniques are described herein that allow a user equipment (UE) to configure a subcarrier spacing value while monitoring synchronization signals of neighboring cells. In some wireless communication systems, synchronization signals in given radio frequency spectrum band may be transmitted using one of a plurality of different subcarrier spacings. In some cases, a network entity, such as a base station, may transmit an indication to the UE that indicates the subcarrier spacing used by a cell to transmit a specific set of synchronization signals. In some cases, the UE may select a subcarrier spacing based on a database of subcarrier spacings stored locally by the UE. In some cases, the UE may select the subcarrier spacing based on a predetermined configuration.
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公开(公告)号：US10897740B1
公开(公告)日：2021-01-19
申请号：US16590102
申请日：2019-10-01
Applicant: QUALCOMM Incorporated
Inventor： Ruhua He , Michael Levitsky , Raghu Narayan Challa
Abstract: Wireless communication devices are adapted to facilitate path loss estimations utilizing a synchronization signal block (SSB). According to one example, a wireless communication device can obtain a spatial relation reference signal. The wireless communication device may determine a SSB in quasi-colocation (QCL) with the received spatial relation reference signal. A path loss may be measured utilizing the determined SSB. The wireless communication device may conduct transmit power control based on the measured path loss associated with the determined SSB. Other aspects, embodiments, and features are also included.
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公开(公告)号：US20200374717A1
公开(公告)日：2020-11-26
申请号：US16880946
申请日：2020-05-21
Applicant: QUALCOMM Incorporated
Inventor： Ruhua He , Yong Li , Michael Levitsky , Raghu Narayan Challa
Abstract: Methods, systems, and devices for wireless communications are described. In some cases, a user equipment (UE) may be configured to use certain reference signals to perform radio link monitoring and/or beam failure detection of a communication link. In some cases, the UE may identify a first reference signal configured for the UE and a second reference signal configured for radio link monitoring and/or beam failure detection. In some cases, the UE may determine a synchronization signal block (SSB) for the radio link monitoring or the beam failure detection of the control channel based on an association between the second reference signal and the SSB. For example, the UE may be configured to follow a sequence including hops between different reference signals to arrive at the SSB. The UE may then perform the radio link monitoring and/or the beam failure detection using the SSB.
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公开(公告)号：US10687290B2
公开(公告)日：2020-06-16
申请号：US15961183
申请日：2018-04-24
Applicant: QUALCOMM Incorporated
Inventor： Tianyang Bai , Muhammad Nazmul Islam , Juergen Cezanne , Sundar Subramanian , Ruhua He , Raghu Narayan Challa , Alexei Yurievitch Gorokhov , Junyi Li
Abstract: A UE may identify a first indication associated with a first signaling to be received in a time interval and identify a second indication associated with a second signaling to be received in the time interval. The UE may select to receive and receive, in the time interval, at least one of the first signaling or the second signaling based on at least one of the first or second indications. One or more of the first and second indications may be received from a BS or determined by the UE via predefined or other means. A BS may convey indications of the first and/or second signaling. The first and second indications may be transmitted sufficiently before the signaling in an effort to allow the UE to select and tune its receiver beam in the direction of the signaling to be received.
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公开(公告)号：US10652893B2
公开(公告)日：2020-05-12
申请号：US16163264
申请日：2018-10-17
Applicant: QUALCOMM Incorporated
Inventor： Bilal Sadiq , Juergen Cezanne , Sundar Subramanian , Tianyang Bai , Muhammad Nazmul Islam , Sony Akkarakaran , Alexei Yurievitch Gorokhov , Raghu Narayan Challa , Shay Landis , Ruhua He
Abstract: Certain aspects of the disclosure provide techniques for a user equipment (UE) to determine a receive beam of a plurality of receive beams for receiving an upcoming transmission from a base station, wherein the determining is based on whether an indication is received from the base station indicating if the upcoming transmission includes a reference signal (RS) multiplexed with additional data. The techniques further provide for the UE to receive the upcoming transmission using the determined receive beam.
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