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公开(公告)号：US20220322435A1
公开(公告)日：2022-10-06
申请号：US17221521
申请日：2021-04-02
Applicant: QUALCOMM Incorporated
Inventor： Giovanni CHISCI , Jing SUN , Arumugam CHENDAMARAI KANNAN , Vinay CHANDE , Aleksandar DAMNJANOVIC , Xiaoxia ZHANG
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter node may determine a set of desired transmit beams to use for transmissions during a channel occupancy time (COT), wherein each transmit beam in the set of desired transmit beams is associated with an energy detection threshold (EDT). The transmitter node may configure a sensing beam associated with a directional listen-before-talk (LBT) procedure, wherein the sensing beam is associated with an EDT that is at least as strict as a strictest EDT associated with the set of desired transmit beams. The transmitter node may transmit using the set of desired transmit beams during the COT, wherein the COT is initiated based at least in part on an indication that the directional LBT procedure succeeded using the sensing beam. Numerous other aspects are described.
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公开(公告)号：US20220322434A1
公开(公告)日：2022-10-06
申请号：US17221500
申请日：2021-04-02
Applicant: QUALCOMM Incorporated
Inventor： Giovanni CHISCI , Arumugam CHENDAMARAI KANNAN , Jing SUN , Vinay CHANDE , Xiaoxia ZHANG , Aleksandar DAMNJANOVIC
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitting node may perform a directional listen-before-talk (LBT) using a sensing beam. The transmitting node may start a channel occupancy time (COT) after the directional LBT based at least in part on one of a COT claiming signal or a time stamp. The transmitting node may perform, to a receiving node, one or more transmissions during the COT using one or more transmit beams that are included in the sensing beam. Numerous other aspects are described.
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公开(公告)号：US20210360696A1
公开(公告)日：2021-11-18
申请号：US17322363
申请日：2021-05-17
Applicant: QUALCOMM Incorporated
Inventor： Arumugam CHENDAMARAI KANNAN , Jing SUN , Vinay CHANDE , Xiaoxia ZHANG , Tao LUO , Srinivas YERRAMALLI , Juan MONTOJO
Abstract: A user equipment (UE) and base station may be configured to implementing trigger-based joint TX-RX sensing for channel access. In some aspects, the UE may monitor, via a receiver, for one or more transmissions from a first base station, detect, during the monitoring, interference associated with a pre-grant communication, the pre-grant communication associated with a future communication between a second base station a second user equipment, and transmit, via a transmitter, a reservation communication to the second base station in response to the pre-grant communication. In some aspects, the UE may receive the one or more communications from the first base station, without interference from the second base station, based on transmitting the reservation communication.
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公开(公告)号：US20210266914A1
公开(公告)日：2021-08-26
申请号：US16802292
申请日：2020-02-26
Applicant: QUALCOMM Incorporated
Inventor： Taesang YOO , Xiaoxia ZHANG , Vinay CHANDE , Srinivas YERRAMALLI , Arumugam CHENDAMARAI KANNAN
Abstract: Aspects are provided that allow a base station to use visual information of interfering UEs for optimizing shared channel access and beam and interference management and tracking. The base station may obtain visual information of a UE. The base station may then access a shared channel to communicate with the UE based on the visual information. After accessing the shared channel, the base station may communicate with the UE over the shared channel using one or more beams based on the visual information. Efficient channel access and communication in mmW environments may thereby be achieved.
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公开(公告)号：US20210250776A1
公开(公告)日：2021-08-12
申请号：US17172000
申请日：2021-02-09
Applicant: QUALCOMM Incorporated
Inventor： Srinivas YERRAMALLI , Vinay CHANDE , Arumugam CHENDAMARAI KANNAN , Jing SUN , Xiaoxia ZHANG , Tao LUO
Abstract: A wireless device uses a frame-based channel access mode to access a wireless spectrum for wireless communication. The wireless device may use transmitter-side only channel sensing to determine whether or not the spectrum is idle. The frame-based channel access mode may use a fixed frame period that includes an initial sensing period for beam-based sensing and an idle period at the end of the frame to facilitate spectrum sharing.
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Patent Agency Ranking
公开(公告)号：US20210045158A1
公开(公告)日：2021-02-11
申请号：US16917472
申请日：2020-06-30
Applicant: QUALCOMM Incorporated
Inventor： Srinivas YERRAMALLI , Arumugam CHENDAMARAI KANNAN , Vinay CHANDE , Tao LUO , Xiaoxia ZHANG
Abstract: This disclosure provides systems, methods, and apparatuses for beam-based channel access procedures. A base station (BS) or a user equipment (UE) may be scheduled to perform a transmission on a plurality of beams, and may perform a channel access procedure for the plurality of beams to determine an availability of the plurality of beams. In some implementations, the BS or the UE may determine that a channel access procedure is successful for a subset of the plurality of beams. In such implementations, the BS or the UE may perform the transmission on a subset of the plurality of beams for which the channel access procedure is determined to be successful or may perform the transmission after determining that the channel access procedure is successful for the plurality of beams. In either case, the approaches may decrease the likelihood that the transmission will be dropped or undecodable at a receiver.
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公开(公告)号：US20210029740A1
公开(公告)日：2021-01-28
申请号：US16910830
申请日：2020-06-24
Applicant: QUALCOMM Incorporated
Inventor： Srinivas YERRAMALLI , Arumugam CHENDAMARAI KANNAN , Vinay CHANDE , Xiaoxia ZHANG , Tao LUO , Sungwoo PARK , Wooseok NAM , Jing SUN , Kaushik CHAKRABORTY , Zhifei FAN , Mostafa KHOSHNEVISAN
Abstract: This disclosure provides systems, methods, and apparatuses for a beam-based channel access countdown procedure. In one aspect, a channel sensing beam may be permitted to include one or more transmit beams and, thus, may differ from a transmit beam that is to be used for a transmission. As such, defining a manner in which a channel access countdown procedure is performed is desirable. Some aspects described herein provide techniques and apparatus for a beam-based channel access countdown procedure. In some aspects, the systems, methods, and apparatuses described herein provide a beam-based channel access countdown procedure that allows a single channel sensing beam, including multiple transmit beams, to be utilized in association with determining channel availability for the multiple transmit beams, thereby improving performance of beam-based directional transmissions.
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公开(公告)号：US20150111589A1
公开(公告)日：2015-04-23
申请号：US14244152
申请日：2014-04-03
Applicant: QUALCOMM Incorporated
Inventor： Mehmet YAVUZ , Farhad MESHKATI , Rajat PRAKASH , Tao CHEN , Vinay CHANDE
CPC classification number: H04W72/0486 , H04W16/08 , H04W16/32 , H04W24/02 , H04W52/244 , H04W52/267 , H04W52/343
Abstract: The present disclosure presents a method and an apparatus for optimizing coverage area of a small cell. For example, the disclosure presents a method for estimating an available backhaul capacity of a small cell and determining a target OTA data rate for the small cell based at least on the estimated available backhaul capacity, and changing a coverage area of the small cell based at least on the determined target OTA data rate by. As such, optimizing coverage area of a small cell may be achieved.
Abstract translation: 本公开提供了一种用于优化小小区的覆盖区域的方法和装置。 例如，本公开提供了一种用于估计小小区的可用回程容量并至少基于估计的可用回程容量来确定小小区的目标OTA数据速率的方法，以及基于估计的可用回程容量来改变小小区的覆盖区域 至少对确定的目标OTA数据速率。 因此，可以实现小单元的优化覆盖区域。
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公开(公告)号：US20240057165A1
公开(公告)日：2024-02-15
申请号：US18547635
申请日：2021-04-30
Applicant: QUALCOMM Incorporated
Inventor： Siyi CHEN , Arumugam CHENDAMARAI KANNAN , Giovanni CHISCI , Jing SUN , Vinay CHANDE , Xiaoxia ZHANG , Changlong XU
IPC: H04W74/08
CPC classification number: H04W74/0816
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may start, in a no-listen-before-talk (no-LBT) mode and after a first channel occupancy time (COT), an away period during which no transmissions are to occur in abeam direction used in the first COT. The wireless communication device may perform, during the away period, channel sensing. The wireless communication device may transmit a communication in a second COT after the away period, based at least in part on a result of the channel sensing. Numerous other aspects are described.
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公开(公告)号：US20240048220A1
公开(公告)日：2024-02-08
申请号：US18452412
申请日：2023-08-18
Applicant: QUALCOMM Incorporated
Inventor： Srinivas YERRAMALLI , Arumugam CHENDAMARAI KANNAN , Vinay CHANDE , Jing SUN , Xiaoxia ZHANG , Tao LUO
CPC classification number: H04B7/088 , H04B7/0888 , H04W74/0875 , H04W48/02 , H04L5/0053 , H04W72/23
Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for managing beam selection. In one aspect, an initiating wireless device may determine whether a pre-grant acknowledgement associated with a first beam has been received from a responding wireless device within an expected receive time. The initiating wireless device may generate an indication to prevent the initiating wireless device from using the first beam for a blocking duration in response to determining that the pre-grant acknowledgement associated with the first beam has not been received within the expected receive time.
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