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公开(公告)号:US20140235288A1
公开(公告)日:2014-08-21
申请号:US14259921
申请日:2014-04-23
Applicant: QUALCOMM Incorporated
Inventor: Mehmet Yavuz , Farhad Meshkati , Mostafa El-Khamy , Sanjiv Nanda
IPC: H04W52/24
CPC classification number: H04W52/245 , H04B17/318 , H04B17/382 , H04W52/241 , H04W52/244 , H04W52/367 , H04W52/40
Abstract: Transmit power (e.g., maximum transmit power) may be defined based on the maximum received signal strength allowed by a receiver and a total received signal strength from transmitting nodes at the receiver. Transmit power may be defined for an access node (e.g., a femto node) such that a corresponding outage created in a cell (e.g., a macro cell) is limited while still providing an acceptable level of coverage for access terminals associated with the access node. An access node may autonomously adjust its transmit power based on channel measurement and a defined coverage hole to mitigate interference and perform a self-calibration process.
Abstract translation: 可以基于接收机允许的最大接收信号强度和来自接收机处的发射节点的总接收信号强度来定义发射功率(例如,最大发射功率)。 可以为接入节点(例如,毫微微节点)定义发射功率,使得在小区(例如,宏小区)中创建的相应中断受到限制,同时仍然为与接入节点相关联的接入终端提供可接受的覆盖水平 。 接入节点可以基于信道测量和定义的覆盖孔来自主地调整其发射功率以减轻干扰并执行自校准过程。
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42.
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。
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公开(公告)号:US12143947B2
公开(公告)日:2024-11-12
申请号:US17654420
申请日:2022-03-11
Applicant: QUALCOMM Incorporated
Inventor: Farhad Meshkati , Brian Clarke Banister , Michael Lee McCloud
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a first transmit power limit based at least in part on at least one of a specific absorption rate limit, a maximum permissible exposure limit, or a power density limit. The UE may modify, based at least in part on a scaling factor associated with a time interval, the first transmit power limit to obtain a modified first transmit power limit. The UE may transmit a signal based at least in part on the modified first transmit power limit. Numerous other aspects are described.
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公开(公告)号:US11871395B2
公开(公告)日:2024-01-09
申请号:US17823575
申请日:2022-08-31
Applicant: QUALCOMM Incorporated
Inventor: Yongle Wu , Mihir Vijay Laghate , Farhad Meshkati , Raghu Narayan Challa , Jyothi Kiran Vattikonda
IPC: H04W88/06 , H04W72/044 , H04W48/20 , H04B17/382 , H04W72/21
CPC classification number: H04W72/046 , H04B17/382 , H04W48/20 , H04W72/21 , H04W88/06
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may measure a beam, according to a measurement configuration, to determine a channel condition value of the beam, modify the channel condition value based at least in part on at least one of one or more beam characterizations, a derivation of a beamforming gain value, or an estimation of the beamforming gain value, and transmit, to a base station, a measurement report indicating the modified channel condition value. Numerous other aspects are provided.
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公开(公告)号:US11871355B2
公开(公告)日:2024-01-09
申请号:US17229528
申请日:2021-04-13
Applicant: QUALCOMM Incorporated
Inventor: Farhad Meshkati , Alexei Yurievitch Gorokhov , Sanghoon Kim , Troy Curtiss , Dinesh Kumar Devineni , Ashok Mantravadi , Lin Lu
CPC classification number: H04W52/146 , H04L5/0051 , H04L25/0226 , H04W52/36 , H04W52/42
Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may transmit a sounding reference signal (SRS) to a base station using an SRS antenna switch (SRS-AS) or an SRS carrier switch (SRS-CS) transmission technique and the UE may feature multiple antenna groups that have separate exposure budgets due to their spatial separation. The UE may employ one or more accounting procedures for tracking energy contributions associated with the SRS across the multiple antenna groups of the UE and may employ one or more power control procedures for setting a transmit power for an uplink signal in accordance with the energy contributions associated with the SRS.
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公开(公告)号:US11705953B2
公开(公告)日:2023-07-18
申请号:US17457875
申请日:2021-12-06
Applicant: QUALCOMM Incorporated
Inventor: Ting Kong , Farhad Meshkati , Mihir Vijay Laghate , Raghu Narayan Challa
IPC: H04B7/06
CPC classification number: H04B7/0695
Abstract: A first wireless device may select a first beam for communication with a second wireless device from a first set of beams associated with a first beam level. A second set of beams may be associated with a second beam level. The first beam may be associated with a first children list. The first children list may be associated with a first subset of beams of the second set of beams. Each beam in the first subset of beams may have an envelope area that intersects an envelope area of the first beam. The first wireless device may select a second beam for communication with the second wireless device from the first subset of beams based on an envelope area of the second beam intersecting the envelope area of the first beam. The first wireless device may communicate with the second wireless device.
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公开(公告)号:US20220330162A1
公开(公告)日:2022-10-13
申请号:US17229528
申请日:2021-04-13
Applicant: QUALCOMM Incorporated
Inventor: Farhad Meshkati , Alexei Yurievitch Gorokhov , Sanghoon Kim , Troy Curtiss , Dinesh Kumar Devineni , Ashok Mantravadi , Lin Lu
Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may transmit a sounding reference signal (SRS) to a base station using an SRS antenna switch (SRS-AS) or an SRS carrier switch (SRS-CS) transmission technique and the UE may feature multiple antenna groups that have separate exposure budgets due to their spatial separation. The UE may employ one or more accounting procedures for tracking energy contributions associated with the SRS across the multiple antenna groups of the UE and may employ one or more power control procedures for setting a transmit power for an uplink signal in accordance with the energy contributions associated with the SRS.
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公开(公告)号:US11470621B2
公开(公告)日:2022-10-11
申请号:US16923515
申请日:2020-07-08
Applicant: QUALCOMM Incorporated
Inventor: Juan Montojo , Farhad Meshkati , Yongbin Wei , Taesang Yoo , Xiaoxia Zhang
Abstract: Wireless communications systems and methods related to improving detectability of interference management signals are provided. A first wireless communication device communicates, with a second wireless communication device, a first reservation signal indicating a reservation for a first transmission slot in a spectrum accessed by a plurality of network operating entities. The first wireless communication device and the second wireless communication device are associated with a first network operating entity of a plurality of network operating entities. The first reservation signal includes a duration based on a power class associated with the first network operating entity. The first wireless communication device communicates, with the second wireless communication device, a first communication signal in the first transmission slot.
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49.
公开(公告)号:US20220303912A1
公开(公告)日:2022-09-22
申请号:US17695705
申请日:2022-03-15
Applicant: QUALCOMM Incorporated
Inventor: Farhad Meshkati , Raghu Narayan Challa , Tienyow Liu
Abstract: Methods, systems, and devices for wireless communications are described that support techniques for transmission power determination for radio frequency (RF) exposure compliance. A transmitting device, such as a user equipment (UE) may determine an uplink transmit power limit for a time window based on an RF limit and a duration of the time window. The device may use the power limit to determine an uplink transmit power based on a computed uplink transmission period for the time window that accounts for a time period during which the device is expected to actually transmit. The computed uplink transmission period may be based on one or more actual uplink transmission periods during one or more prior time windows, a predictive model, network signaling, or any combinations thereof. The device may transmit one or more uplink transmissions during the time window using the determined uplink transmit power.
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公开(公告)号:US11374638B2
公开(公告)日:2022-06-28
申请号:US16592184
申请日:2019-10-03
Applicant: QUALCOMM Incorporated
Inventor: Seyed Ali Akbar Fakoorian , Jing Sun , Xiaoxia Zhang , Farhad Meshkati
IPC: H04L1/18 , H04B7/06 , H04L5/00 , H04B17/336 , H04W72/04
Abstract: Methods, systems, and devices channel quality indicator (CQI) reporting based on demodulation reference signal (DMRS) from a base station are described. In some cases, a base station may configure a user equipment (UE) with such DMRS based CQI reporting (e.g., by transmitting a CQI reporting configuration to the UE). The CQI reporting configuration may specify the UE is to report CQI based on DMRS and, in some cases, may configure the UE to report the CQI with hybrid automatic repeat request (HARQ) feedback. A UE may receive a control message that indicates a resource for reception of a downlink transmission and an uplink control resource for transmission of CQI information. The UE may identify a DMRS of the downlink transmission, calculate a CQI based on the DMRS, and transmit the calculated CQI to the base station via the uplink control resource indicated by the received control message.
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