公开(公告)号：US09179421B2

公开(公告)日：2015-11-03

申请号：US14611627

申请日：2015-02-02

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Farhad Meshkati ,  Vinay Chande ,  Mehmet Yavuz ,  Yi Jiang

IPC: H04B7/00 ,  H04W52/24 ,  H04W52/14 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04W52/243 ,  H04W52/146 ,  H04W52/242 ,  H04W88/02 ,  H04W88/08

Abstract: Methods and apparatuses are provided for determining a transmission power cap for one or more devices based at least in part on pathloss measurements to one or more access points received from the one or more devices. A common transmission power cap can also be computed for assigning to devices communicating with an access point, and the transmission power cap for a given device can be adjusted when the transmission power is at or a threshold level from the common power cap to conserve signaling in the wireless network. Adjustment of the transmission power cap can additionally or alternatively be based on a received power at an access point related to signals from the device, an interference report from one or more access points, and/or the like.

公开(公告)号：US20150011254A1

公开(公告)日：2015-01-08

申请号：US14456862

申请日：2014-08-11

Applicant: QUALCOMM Incorporated

Inventor： Vinay Chande ,  Farhad Meshkati ,  Chirag Sureshbhai Patel ,  Mehmet Yavuz ,  Sumeeth Nagaraja

IPC: H04W24/10 ,  H04W52/24

CPC classification number: H04W24/10 ,  H04W52/143 ,  H04W52/16 ,  H04W52/18 ,  H04W52/24 ,  H04W52/34

Abstract: Transmit power for an access point is controlled based on measurement reports received by the access point from one or more access terminals that are not currently being served by the access point. In some aspects, transmit power is controlled based on the number of received messages that correspond to a particular event. In some aspects, transmit power is controlled based on the contents of the received messages. For example, the access point may use signal strength information included in the messages to determine a level of transmit power that mitigates interference at a defined subset of reporting access terminals.

Abstract translation: 接入点的发射功率是根据由接入点当前正在由接入点服务的一个或多个接入终端接收的测量报告进行控制的。 在一些方面，基于对应于特定事件的接收消息的数量来控制发射功率。 在一些方面，基于接收到的消息的内容来控制发射功率。 例如，接入点可以使用包括在消息中的信号强度信息来确定在报告接入终端的确定的子集处减轻干扰的发射功率的水平。

公开(公告)号：US20140135004A1

公开(公告)日：2014-05-15

申请号：US14159294

申请日：2014-01-20

Applicant: QUALCOMM Incorporated

Inventor： Chirag Sureshbhai Patel ,  Mehmet Yavuz ,  Leonard Henry Grokop ,  Vinay Chande ,  Sanjiv Nanda ,  Farhad Meshkati ,  Sumeeth Nagaraja

IPC: H04W52/24

CPC classification number: H04W52/245 ,  H04W28/18 ,  H04W52/143 ,  H04W52/242 ,  H04W52/243 ,  H04W52/247 ,  H04W52/281 ,  H04W52/325 ,  H04W52/50 ,  H04W72/085 ,  H04W84/045

Abstract: Transmit power for an access point is controlled based on information received by the access point. For example, an access point may employ one or more algorithms that use messages received from nearby access terminals to maintain an acceptable tradeoff between providing an adequate coverage area for access point transmissions and mitigating interference that these transmissions cause at nearby access terminals. Here, the access point may employ a network listen-based algorithm upon initialization of the access terminal to provide preliminary transmit power control until sufficient information is collected for another transmit power control algorithm (e.g., an access terminal assisted algorithm). Also, the access terminal may employ an active access terminal protection scheme to mitigate interference the access point may otherwise cause to a nearby access terminal that is in active communication with another access point.

Abstract translation: 基于接入点接收的信息来控制接入点的发射功率。 例如，接入点可以采用使用从附近的接入终端接收的消息的一个或多个算法来维持在为接入点传输提供足够的覆盖区域和减轻这些传输在附近的接入终端处造成的干扰的可接受的折衷。 这里，接入点可以在接入终端初始化时采用基于网络侦听的算法，以提供初始的发射功率控制，直到为另一发射功率控制算法（例如，接入终端辅助算法）收集足够的信息。 此外，接入终端可以采用有源接入终端保护方案来减轻接入点否则可能导致与另一接入点主动通信的附近接入终端的干扰。

公开(公告)号：US12177896B2

公开(公告)日：2024-12-24

申请号：US17198811

申请日：2021-03-11

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W16/14 ,  H04W74/0808

Abstract: A proxy sensing-based channel access procedure is discussed for shared spectrum networks. Within a given network, a distribution of proxy nodes may be deployed around a network operating area. A control node, which controls the proxy sensing mode for the network, may configure the active network nodes to conduct communications via the shared communication spectrum without first performing any type of channel sensing on the shared communication spectrum. The control node may then also configured the proxy nodes to perform channel sensing on the shared spectrum for the entire network. Using the reported channel sense results from the proxy nodes, the control node may determine whether detected interference is occasional or persistent, and whether to take some action to modify the communications or operations of the network.

公开(公告)号：US12171021B2

公开(公告)日：2024-12-17

申请号：US17249611

申请日：2021-03-05

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/0808 ,  H04W72/044 ,  H04W72/0453

Abstract: Wireless communications systems and methods related to communications in a network are provided. A first wireless communication device may perform in a shared radio frequency band during a first portion of a frame period, a first listen-before-talk (LBT) using a first beam characteristic. Additionally, the first wireless communication device may perform in the shared radio frequency band during a second portion of the frame period, a second LBT using a second set of beam characteristics different from the first beam characteristic. The first wireless communication device may communicate with a second wireless communication device in the shared radio frequency band during the second portion of the frame period, one or more communication signals using the second set of beam characteristics. Other aspects and features are also described.

公开(公告)号：US12035360B2

公开(公告)日：2024-07-09

申请号：US17125106

申请日：2020-12-17

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04L5/00 ,  H04W24/08 ,  H04W24/10 ,  H04W72/541

CPC classification number: H04W74/08 ,  H04L5/0048 ,  H04L5/0055 ,  H04W24/08 ,  H04W24/10 ,  H04W72/541

Abstract: A first apparatus may be implemented as a user equipment (UE) or a component thereof. The first apparatus may be configured to receive a pre-grant message from a base station on a wireless channel. The first apparatus may be further configured to determine an interference level associated with the wireless channel. The first apparatus may then indicate the interference level to the base station in response to the pre-grant message. A second apparatus may be implemented as a base station or a component thereof. The second apparatus may be configured to transmit a pre-grant message to a UE on a wireless channel. The second apparatus may be further configured to detect for an acknowledgement (ACK) message responsive to the pre-grant message from the UE. The second apparatus may then determine an interference level associated with the wireless channel proximate to the UE based on detecting for the ACK message.

公开(公告)号：US11985702B2

公开(公告)日：2024-05-14

申请号：US18173640

申请日：2023-02-23

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04L5/00 ,  H04W72/21 ,  H04W74/0808

CPC classification number: H04W74/0808 ,  H04L5/0055 ,  H04W72/21

Abstract: A method of wireless communication includes performing, by a user equipment (UE) device, a channel sensing operation during a first window of a frame period associated with a wireless communication network. Performing the channel sensing operation includes performing a direction-based scan of one or more beams associated with the wireless communication network, and the channel sensing operation is included in a joint sensing operation performed with a base station. The method further includes, based at least in part on a result of the channel sensing operation, determining whether to perform, during a second window of the frame period, one or more communication operations with the base station.

公开(公告)号：US11973558B2

公开(公告)日：2024-04-30

申请号：US17449012

申请日：2021-09-27

Applicant: QUALCOMM Incorporated

Inventor： Mohammed Ali Mohammed Hirzallah ,  Arumugam Chendamarai Kannan ,  Srinivas Yerramalli ,  Marco Papaleo ,  Vinay Chande ,  Giovanni Chisci ,  Aleksandar Damnjanovic ,  Jing Sun ,  Rajat Prakash ,  Xiaoxia Zhang ,  Tao Luo

IPC: H04B7/06 ,  H04B17/309 ,  H04W24/10

CPC classification number: H04B7/0632 ,  H04B7/0617 ,  H04B17/309 ,  H04W24/10

Abstract: A method of wireless communication performed by a wireless communications device may include receiving, from a second wireless communication device, one or more signals associated with a beam parameter, determining, for each of a plurality of locations within a first zone, a first signal measurement for the one or more received signals, determining, at each of a plurality of locations within a second zone, a second signal measurement for the one or more received signals, wherein the second zone is different from the first zone, and determining whether the second wireless communication device satisfies an interference condition based at least in part on a cumulative distribution of at least one of the first signal measurements at the plurality of locations within the first zone or a cumulative distribution of at least one of the second signal measurements at the plurality of locations within the second zone.

公开(公告)号：US11838939B2

公开(公告)日：2023-12-05

申请号：US17472359

申请日：2021-09-10

Applicant: QUALCOMM Incorporated

Inventor： Vinay Chande ,  Arumugam Chendamarai Kannan ,  Jing Sun ,  Xiaoxia Zhang ,  Tao Luo ,  Aleksandar Damnjanovic

IPC: H04W4/00 ,  H04W72/541

CPC classification number: H04W72/541

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, related to long term sensing based inter-operator coexistence techniques for unlicensed high bands providing a measurement framework and candidate measurements, along with channel selection, per-beam channel deselection, and dynamic frequency selection. In one aspect, a network entity may determine that a non-coordinating node satisfies a communication presence threshold based on the at least one long term sensing measurement, and transmitting, to a user equipment (UE), an indication of a remedial action, or adjusting the communication channel based on the determination. In another aspect, a UE may obtain at least one long term sensing measurement, and transmit a long term sensing report including the at least one long term sensing measurement.

公开(公告)号：US11799594B2

公开(公告)日：2023-10-24

申请号：US17353141

申请日：2021-06-21

Applicant: QUALCOMM Incorporated

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

IPC: H04L1/1812 ,  H04W72/1263 ,  H04L1/1867 ,  H04L1/1829

CPC classification number: H04L1/1819 ,  H04L1/1835 ,  H04L1/1896 ,  H04W72/1263

Abstract: Aspects of the present disclosure include methods, apparatuses, and computer readable media for receiving first downlink information, failing to decode a first portion of the first downlink information, transmitting, to a base station (BS), a first response including a negative acknowledgement (NACK) indicating a first decoding failure associated with the first portion of the first downlink information, receiving second downlink information, failing to decode a first portion of the second downlink information, detecting a hybrid automatic repeat request (HARQ) buffer unavailability, determining to discard NACK information associated with the NACK, resetting at least a portion of a HARQ buffer, in response to detecting the HARQ buffer unavailability, by discarding NACK information associated with the NACK, generating a reset NACK indicating the HARQ buffer reset and indicating the NACK information being discarded, and transmitting a second response including the reset NACK to the BS.