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公开(公告)号：US11653216B2
公开(公告)日：2023-05-16
申请号：US17208360
申请日：2021-03-22
Applicant: QUALCOMM Incorporated
Inventor： Srinivas Yerramalli , Rahul Malik , Tamer Kadous
IPC: H04W16/14 , H04W74/08 , H04W72/04 , H04W72/08 , H04W72/0453
CPC classification number: H04W16/14 , H04W72/042 , H04W72/0406 , H04W72/048 , H04W74/0808 , H04W72/0453 , H04W72/08
Abstract: Methods, systems, and devices for wireless communication are described. A base station may configure a system bandwidth of shared spectrum partitioned into a plurality of bandwidth parts based on interference associated with each of the plurality of bandwidth parts. The base station may then transmit the configuration of the system bandwidth to a plurality of devices. A UE may receive, from a base station, a configuration of a system bandwidth of shared spectrum. The system bandwidth may be partitioned into a plurality of bandwidth parts based on interference associated with each of the plurality of bandwidth parts. The UE may then communicate with the base station on at least one of the bandwidth parts.
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公开(公告)号：US11632740B2
公开(公告)日：2023-04-18
申请号：US16591215
申请日：2019-10-02
Applicant: QUALCOMM Incorporated
Inventor： Srinivas Yerramalli , Rajat Prakash , Xiaoxia Zhang
IPC: H04W72/00 , H04W72/12 , H04W28/04 , H04W80/02 , H04W72/121 , H04W72/1273
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration for a group of UEs, including the UE, associated with a common set of parameters indicated in multicast or broadcast traffic, wherein the configuration includes a group identifier associated with the group of UEs; and receive the multicast or broadcast traffic over a radio access network (RAN) in a physical downlink shared channel (PDSCH) communication, wherein the group identifier is used to identify that the multicast or broadcast traffic is intended for the UE. Numerous other aspects are provided.
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公开(公告)号：US11632737B2
公开(公告)日：2023-04-18
申请号：US17221619
申请日：2021-04-02
Applicant: QUALCOMM Incorporated
Inventor： Rajat Prakash , Lorenzo Ferrari , Srinivas Yerramalli , Xiaoxia Zhang , Alexandros Manolakos , Sven Fischer , Stephen William Edge
Abstract: A wireless network including user equipment (UE) and base stations is configured to perform position determination with low latency and high availability within the Time-Sensitive Networking (TSN) framework. For example, the UE may be integrated as a sensor in a motion control system or similar applications. The UE and base stations are synchronized with the TSN clock, and are configured to perform positioning measurements at a specific time point within the TSN framework. The time point, for example, may be a global sampling point, at which all sensor nodes in the TSN framework perform position measurements. A location server may be provided with the positioning measurements or a position estimate from the UE and provide the position estimate to an external client, such as a motion controller in a motion control system.
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公开(公告)号：US11617152B2
公开(公告)日：2023-03-28
申请号：US17354108
申请日：2021-06-22
Applicant: Qualcomm INCORPORATED
Inventor： Xiaoxia Zhang , Srinivas Yerramalli , Jing Sun
IPC: H04W64/00 , G01S5/02 , H04B17/318 , H04L5/00
Abstract: Techniques are provide for passive positioning of user equipment (UE) with sidelink assistance. An example method for passive positioning includes receiving a first positioning reference signal from a first station at a first time, receiving a second positioning reference signal from a second station at a second time, receiving positioning assistance data associated with positioning reference signals received by a proximate user equipment, determining a reference signal timing difference based at least in part on the first time and the second time, and determining a current location based at least in part on the reference signal timing difference and the positioning assistance data.
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公开(公告)号：US11601253B2
公开(公告)日：2023-03-07
申请号：US16951665
申请日：2020-11-18
Applicant: QUALCOMM Incorporated
Inventor： Akula Reddy , Jing Sun , Tao Luo , Xiaoxia Zhang , Srinivas Yerramalli , Ahmed Abdelaziz Ibrahim Abdelaziz Zewail , Zhifei Fan , Sungwoo Park , Wooseok Nam
Abstract: A wireless communication system utilizes a synchronization signal block (SSB) structure to enable beam switching at higher sub carrier spacing (SCS) or uplink transmissions within an SSB. The SSB structure has a first SCS for an SSB transmission and a second SCS for a data transmission. The SSB structure is based on the first SCS and the second SCS, with the SSB structure including at least one gap between SSB symbols or between SSBs. The wireless communication system transmits or receives an SSB based on the SSB structure. A base station may transmit a downlink signal during the gap, for example, where the second SCS is much greater than the first SCS. A user equipment may transmit an uplink signal such as an acknowledgment during the at least one gap. The user equipment or the base station may perform analog beam switching during the at least one gap between SSBs.
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Patent Agency Ranking
公开(公告)号：US11595952B2
公开(公告)日：2023-02-28
申请号：US16385897
申请日：2019-04-16
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Xiaoxia Zhang , Srinivas Yerramalli , Yongbin Wei
Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit a first downlink control information block over a group physical downlink control channel (PDCCH), wherein the first downlink control information block identifies a plurality of user equipment (UEs) for performing aperiodic channel state information (CSI) measurements and an indication of CSI reference signal resources for a CSI reference signal. The base station may transmit the CSI reference signal on the indicated CSI reference signal resources. The UE may perform, in response to receiving the group PDCCH, an aperiodic CSI measurement of the CSI reference signal on the indicated CSI reference signal resources.
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公开(公告)号：US11582006B2
公开(公告)日：2023-02-14
申请号：US17001653
申请日：2020-08-24
Applicant: QUALCOMM Incorporated
Inventor： Srinivas Yerramalli , Xiaoxia Zhang , Sony Akkarakaran , Jing Sun , Taesang Yoo
Abstract: Methods, systems, and devices for transmitting a positioning reference signal over a channel within a window including a set of positioning reference signal transmission opportunities. A device may identify the window and perform a channel access procedure to access the channel during the window. Based on performing the channel access procedure, the device may obtain access to the channel and determine that a portion of the positioning reference signal transmission opportunities are remaining within the window. The device may transmit a positioning reference signal during one or more of the remaining positioning reference signal transmission opportunities. In some cases, the device may refrain from transmitting a positioning reference signal during a portion of a positioning reference signal transmission opportunity even if the device gains access to the channel during that portion of the positioning reference signal transmission opportunity.
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公开(公告)号：US11575424B2
公开(公告)日：2023-02-07
申请号：US16917299
申请日：2020-06-30
Applicant: QUALCOMM Incorporated
Inventor： Srinivas Yerramalli , Xiaoxia Zhang , Taesang Yoo , Lorenzo Ferrari , Rajat Prakash
Abstract: Aspects relate to dynamically modifying channel state information (CSI) settings, such as CSI report settings and/or CSI resource settings, utilized by a user equipment (UE) in reporting CSI to a base station. For example, a UE may identify at least one parameter associated with a CSI setting and provide a recommendation to modify the CSI setting based on the at least one parameter to a base station. The recommendation may include, for example, an optimized configuration of the CSI setting or soft output, such as an uncertainty level or confidence level associated with the CSI setting. The base station may then select the optimized CSI setting based on the recommendation and provide the optimized CSI setting to the UE for use in generating and transmitting CSI reports to the base station. Other aspects, features, and embodiments are also claimed and described.
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公开(公告)号：US20230007685A1
公开(公告)日：2023-01-05
申请号：US17943851
申请日：2022-09-13
Applicant: QUALCOMM Incorporated
Inventor： Seyed Ali Akbar Fakoorian , Xiaoxia Zhang , Srinivas Yerramalli , Chih-Hao Liu , Tamer Kadous
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may perform a transmission detection procedure on each base station before combining control information. The UE may use demodulation reference signals (DMRS) as a detection mechanism. If the UE detects a DMRS from a base station, the UE may determine that a control resource set associated with the base station is valid for combining. If the UE does not detect DMRS from the base station, the UE may refrain from combining control information from the base station. In another example, base stations that pass a listen-before-talk (LBT) pr6ocedure may transmit a preamble before transmitting control information. A preamble may carry a preamble sequence associated with a specific control resource set. The UE may identify a preamble sequence and determine that the corresponding control resource set is valid for control information combining.
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公开(公告)号：US11528718B2
公开(公告)日：2022-12-13
申请号：US17163797
申请日：2021-02-01
Applicant: QUALCOMM Incorporated
Inventor： Qingjiang Tian , Srinivas Yerramalli , Xiaoxia Zhang , Jing Sun , Chih-Hao Liu
Abstract: Indication of transmission priority class is disclosed for sharing a base station's maximum channel occupancy time (MCOT) for use in autonomous uplink (AUL). Aspects of the disclosure provide for implicitly sharing the MCOT by providing an indication of transmission opportunity (TxOP) length. A serving base station sends an indication of a current TxOP length in control signals to a user equipment (UE). The UE may then infer a set of potential transmission priorities used by the serving base station according to the TxOP length, as TxOP length may relate to the MCOT, which itself may be associated with a particular transmission priority class. The UE may then, conservatively, select the highest transmission priority of the set of potential transmission priorities for autonomously transmitting any uplink data having at least the selected highest transmission priority within configured AUL resource of the current TxOP.
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