公开(公告)号：US11240688B2

公开(公告)日：2022-02-01

申请号：US16893270

申请日：2020-06-04

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo Park ,  Arumugam Chendamarai Kannan ,  Tao Luo ,  Xiaoxia Zhang ,  Jing Sun ,  Srinivas Yerramalli ,  Vinay Chande ,  Olufunmilola Omolade Awoniyi-Oteri ,  Sony Akkarakaran ,  Mostafa Khoshnevisan ,  Zhifei Fan ,  Kaushik Chakraborty

IPC: H04W24/02 ,  H04W72/12 ,  H04B17/336

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, transmissions from a neighboring base station may interfere with downlink transmissions from a serving base station to a target user equipment (UE). To coordinate interference between the base stations (e.g., mitigate interference, stabilize interference, etc.), the serving base station may generate an interference coordination message and may transmit the message over-the-air (OTA) to one or more neighboring base stations. The message may include parameters indicating a coordination scheme for the neighboring base station(s) to use for modifying one or more scheduling decisions. The coordination scheme may be configured or dynamically selected and may include interfering beam fixation, interfering beam suppression, or interfering beam avoidance. A neighboring base station receiving the OTA interference coordination message may modify a scheduling decision to mitigate or stabilize interference when the serving base station is transmitting to the target UE.

公开(公告)号：US11240684B2

公开(公告)日：2022-02-01

申请号：US16719564

申请日：2019-12-18

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Xiaoxia Zhang ,  Yan Zhou ,  Vinay Chande ,  Arumugam Chendamarai Kannan ,  Jing Sun

IPC: H04W16/28 ,  H04W16/14 ,  H04W80/02 ,  H04W74/02 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A base station may determine a degradation of a communication beam associated with a user equipment (UE). The base station may transmit a first signal identifying a beam switch occasion for the UE. The UE may receive a second signal identifying the beam switch occasion based on an outcome of the contention-based procedure. In some cases, the UE may transmit a third signal acknowledging the beam switch occasion during an acknowledgment opportunity based on the second signal, and may perform a beam switch during the beam switch occasion based on transmitting the third signal.

公开(公告)号：US11109400B2

公开(公告)日：2021-08-31

申请号：US16334071

申请日：2016-10-17

Applicant: Qualcomm Incorporated

Inventor： Peng Cheng ,  Chirag Patel ,  Vinay Chande

IPC: H04W72/12 ,  H04W72/04 ,  H04W74/08 ,  H04L1/18

Abstract: Methods, systems, and devices for wireless communication are described. A base station may identify a semi-static resource allocation for a device (e.g., a user equipment (UE)). The resource allocation may be associated with autonomous transmissions from the device in an unlicensed radio frequency spectrum band. The base station may generate and provide a message for transmission to the device. The message may convey an indication of the resource allocation. The device may receive the message and use the resource allocation to identify a transmission schedule for the autonomous transmissions.

公开(公告)号：US20210251000A1

公开(公告)日：2021-08-12

申请号：US17170232

申请日：2021-02-08

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Vinay Chande ,  Arumugarn Chendamarai Kannan ,  Srinivas Yerramalli ,  Xiaoxia Zhang ,  Tao Luo

IPC: H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may receive a clear channel assessment trigger from a second wireless device, the clear channel assessment trigger associated with a data transmission by the second wireless device. The first wireless device may transmit, based at least in part on a result of a first clear channel assessment procedure, feedback information for the clear channel assessment trigger. The first wireless device may receive the data transmission based at least in part on the feedback information for the first clear channel assessment procedure. The first wireless device may transmit, based at least in part on a result of a second clear channel assessment procedure, feedback information for the data transmission, wherein the first clear channel assessment procedure has a first duration that is longer than a second duration for the second clear channel assessment procedure.

公开(公告)号：US20210250999A1

公开(公告)日：2021-08-12

申请号：US17170015

申请日：2021-02-08

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Vinay Chande ,  Arumugam Chendamarai Kannan ,  Srinivas Yerramalli ,  Xiaoxia Zhang ,  Tao Luo

IPC: H04W74/08 ,  H04W72/14 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a grant scheduling an acknowledgement feedback transmission for the grant. The UE may identify, based at least in part on a first timing associated with the grant, a second timing associated with the acknowledgment feedback transmission, or a combination thereof, a duration for a channel clearance procedure to be performed before transmitting the acknowledgement feedback transmission. The UE may perform the channel clearance procedure using the identified duration. The UE may transmit the acknowledgement feedback transmission based at least in part on a result of the channel clearance procedure.

公开(公告)号：US20190261378A1

公开(公告)日：2019-08-22

申请号：US16248596

申请日：2019-01-15

Applicant: QUALCOMM Incorporated

Inventor： Arumugam Chendamarai Kannan ,  Vinay Chande ,  Sanaz Barghi ,  Aleksandar Damnjanovic

IPC: H04W72/08 ,  H04W72/00 ,  H04W72/14 ,  H04L5/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may select a transmission beam sequence for a wireless device during a plurality of transmission slots. The transmission beam sequence may indicate a transmission beam that the wireless device will use for its transmissions during a corresponding transmission slot. The wireless device may transmit a broadcast control signal including an indication of the transmission beam sequence. The wireless device may perform wireless transmissions over the plurality of transmission slots according to the transmission beam sequence. Other wireless devices may use the transmission beam sequence to schedule their own transmissions during the plurality of transmission slots.

公开(公告)号：US20190215867A1

公开(公告)日：2019-07-11

申请号：US16326290

申请日：2017-09-22

Applicant: Qualcomm Incorporated

Inventor： Peng Cheng ,  Vinay Chande ,  Arumugam Chendamarai Kannan ,  Chirag Patel

IPC: H04W74/08 ,  H04W72/12 ,  H04W74/00 ,  H04W72/14 ,  H04W8/00 ,  H04W24/10 ,  H04W52/24

CPC classification number: H04W74/0816 ,  H04W8/005 ,  H04W24/10 ,  H04W52/0225 ,  H04W52/245 ,  H04W72/1205 ,  H04W72/14 ,  H04W74/004 ,  H04W74/0808 ,  H04W76/27

Abstract: Methods, systems, and devices for wireless communication are described. A base station may determine a measurement scheme or uplink mode and then transmit an indication of the scheme or uplink mode to an associated user equipment (UE). The base station may identify a set of hidden nodes for the UE and configure the UE for autonomous or grant-based uplink transmissions accordingly. A UE may initiate a channel clearance scheme by transmitting a first channel clearance signal (e.g., a request-to-send message), which may include a UE identifier before transmitting an uplink message in the unlicensed radio frequency spectrum band. In response, the base station may transmit a second channel clearance signal (e.g., a clear-to-send message). In some cases, the second channel clearance signal may include control information or may be transmitted at a power level that is based on a characteristic of the UE.

公开(公告)号：US09451480B2

公开(公告)日：2016-09-20

申请号：US14444582

申请日：2014-07-28

Applicant: QUALCOMM Incorporated

Inventor： Yichao Huang ,  Chirag Sureshbhai Patel ,  Tamer Adel Kadous ,  Mehmet Yavuz ,  Lili Zhang ,  Rajat Prakash ,  Vinay Chande ,  Christophe Chevallier ,  Sumeeth Nagaraja ,  Farhad Meshkati ,  Suhas Mitra ,  Vansh Pal Singh Makh ,  Yeliz Tokgoz ,  Cong Shen ,  Varun Khaitan

IPC: H04W4/00 ,  H04W24/02 ,  H04B17/391 ,  H04W52/34 ,  H04W24/10 ,  H04W52/24 ,  H04W88/08 ,  H04W52/22 ,  H04B17/318 ,  H04W84/04

CPC classification number: H04W24/02 ,  H04B17/318 ,  H04B17/391 ,  H04W24/10 ,  H04W52/226 ,  H04W52/244 ,  H04W52/245 ,  H04W52/346 ,  H04W84/045 ,  H04W88/08

Abstract: Methods and apparatus for communication comprise aspects that include performing a power management procedure for configuring a subset of network entities to receive one or more of downlink signal measurements and/or one or more uplink signal measurements. The methods and apparatus further comprise aspects that include storing the one or more one or more of downlink signal measurements and/or one or more uplink signal measurements associated with the subset of network entities at a database for managing transmit power at the subset of network entities. Moreover, the methods and apparatus comprise aspects that include adjusting a transmit power value of at least one of the subset of network entities from a first transmit power value to a second transmit power value based at least in part on the one or more of downlink signal measurements and/or one or more uplink signal measurements.

Abstract translation: 用于通信的方法和装置包括以下方面：包括执行用于配置网络实体的子集以接收下行链路信号测量和/或一个或多个上行链路信号测量中的一个或多个的功率管理过程。 所述方法和装置还包括这样的方面，其包括存储一个或多个下行链路信号测量和/或与网络实体的子集相关联的一个或多个上行链路信号测量数据库，用于管理网络实体的子集处的发射功率 。 此外，所述方法和装置包括以下方面：至少部分地基于所述一个或多个下行链路信号来调整网络实体的子集中的至少一个的发射功率值从第一发射功率值到第二发射功率值 测量和/或一个或多个上行链路信号测量。

公开(公告)号：US20160088639A1

公开(公告)日：2016-03-24

申请号：US14492998

申请日：2014-09-22

Applicant: QUALCOMM Incorporated

Inventor： Andreas Maximilian Schenk ,  Andrea Garavaglia ,  Vinay Chande ,  Chirag Sureshbhai Patel

IPC: H04W72/08

CPC classification number: H04W72/085 ,  H04W72/1226

Abstract: Described herein are techniques for link adaptation at an access point enabled for coordinated scheduling. For example, the technique may involve determining a resource-allocation profile (RAP) for the access point, wherein the RAP is based on a set of statistics associated with channel conditions for mobile devices. The technique may involve determining a plurality of link adaptation instances configured for managing interference, each link adaptation instance being associated with an interference condition. The technique may involve for each link adaptation instance, updating the link adaptation instance based on statistics associated with the interference condition.

Abstract translation: 这里描述的是用于在能够协调调度的接入点处的链路自适应的技术。 例如，该技术可以涉及确定接入点的资源分配简档（RAP），其中RAP基于与移动设备的信道条件相关联的一组统计信息。 该技术可以涉及确定配置用于管理干扰的多个链路自适应实例，每个链路自适应实例与干扰条件相关联。 该技术可以涉及每个链路自适应实例，基于与干扰条件相关联的统计信息来更新链路适配实例。

公开(公告)号：US09277468B2

公开(公告)日：2016-03-01

申请号：US14716712

申请日：2015-05-19

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth Nagaraja ,  Farhad Meshkati ,  Damanjit Singh ,  Vinay Chande ,  Andrei Dragos Radulescu ,  Mehmet Yavuz

IPC: H04W72/00 ,  H04W36/00 ,  H04W24/02 ,  H04W24/10 ,  H04W36/08 ,  H04W36/30 ,  H04W76/02 ,  H04W48/12 ,  H04W88/08

CPC classification number: H04W36/0083 ,  H04W24/02 ,  H04W24/10 ,  H04W36/08 ,  H04W36/30 ,  H04W48/12 ,  H04W76/11 ,  H04W88/08

Abstract: Access terminals are provisioned to conduct intra-frequency, inter-frequency, and inter-RAT measurements and report physical layer identifiers of detected cells. The provisioning may involve cycling through all or a portion of a defined superset of physical layer identifier one subset at a time. In addition, the physical layer identifiers may be prioritized to improve the search procedure. Measurement report messages (including physical layer identifiers of the detected cells) are received at an access point as a result of the provisioning. A neighbor cell list for the femtocell is maintained based on the received measurement report messages and, optionally, other information. This other information may related to, for example, one or more of: physical layer identifier information received from access terminals that register with the access point, physical layer identifier information received via network listen operations, information regarding co-located cells, or physical layer identifier information received from a network entity.