公开(公告)号：US11909560B2

公开(公告)日：2024-02-20

申请号：US17302066

申请日：2021-04-22

Applicant: QUALCOMM Incorporated

Inventor： Abhinav Sridhar ,  Jae Won Yoo ,  Tae Min Kim ,  Paolo Minero ,  Ashok Mantravadi ,  Hari Sankar ,  Alexei Yurievitch Gorokhov

IPC: H04L25/02 ,  H04B17/318 ,  H04L5/00

CPC classification number: H04L25/0224 ,  H04B17/318 ,  H04L5/001 ,  H04L5/0048 ,  H04L25/0256 ,  H04W74/0825

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine an actual power delay profile (PDP) associated with a channel between the UE and a base station, wherein the actual PDP indicates an averaged power level of the channel over a period of time. The UE may determine whether a channel estimation mode switching event is satisfied. The UE may switch, based at least in part on the channel estimation mode switching event being satisfied, between a first channel estimation mode based at least in part on the actual PDP and a second channel estimation mode based at least in part on a template PDP. Numerous other aspects are described.

公开(公告)号：US11202264B2

公开(公告)日：2021-12-14

申请号：US16513356

申请日：2019-07-16

Applicant: QUALCOMM Incorporated

Inventor： Steven Charles Ciccarelli ,  Vikas Mahajan ,  Tae Min Kim ,  Supratik Bhattacharjee ,  Chitaranjan Pelur Sukumar ,  Ashok Mantravadi ,  Pooyan Amini ,  Alberto Rico Alvarino ,  Carl Hardin

IPC: H04W52/24 ,  H04L1/00 ,  H04L1/20 ,  H04L5/00 ,  H04W52/14 ,  H04W52/52 ,  H04W72/04

Abstract: Some techniques and apparatuses described herein protect components of a user equipment (UE), such as a low noise amplifier (LNA), from internal interference. For example, the LNA may be disconnected from a receive chain during periods of high internal interference, and may be reconnected to the receive chain during periods of low internal interference. Furthermore, some techniques and apparatuses described herein improve performance by adjusting operations of the UE to account for and/or offset increased internal interference due to a receive chain that does not include a surface acoustic wave (SAW) filter to remove unwanted radio frequency signals. For example, one or more operations of a baseband processor may be modified to account for the increased internal interference. Additionally, or alternatively, reporting of channel state information may be modified to account for increased internal interference of the UE. Additional details are described herein.

公开(公告)号：US20210120551A1

公开(公告)日：2021-04-22

申请号：US17073882

申请日：2020-10-19

Applicant: QUALCOMM Incorporated

Inventor： Arnaud Meylan ,  Arvind Vardarajan Santhanam ,  Sunil Kandukuri ,  Ashok Mantravadi ,  Tingfang Ji ,  Gavin Bernard Horn ,  Peter Gaal ,  Seyedkianoush Hosseini

IPC: H04W72/04 ,  H04W72/14 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a grant delay request to a base station. The grant delay request may indicate a future time, at or thereafter a base station is requested to allocate resources to the UE. The base station may transmit the uplink grant to the UE allocating the resources to the UE based on the grant delay request, and the UE may transmit, to the base station, an uplink transmission including the uplink data based on the uplink grant. The UE may transmit the grant delay request as part of a scheduling request (SR), or as part of a buffer status report (BSR), or a combination of these.

公开(公告)号：US10674389B2

公开(公告)日：2020-06-02

申请号：US15828002

申请日：2017-11-30

Applicant: QUALCOMM Incorporated

Inventor： Arumugam Chendamarai Kannan ,  Andrei Dragos Radulescu ,  Chirag Sureshbhai Patel ,  Tamer Adel Kadous ,  Ashok Mantravadi ,  Aamod Khandekar

IPC: H04W24/10 ,  H04W36/30 ,  H04B7/06 ,  H04L5/00 ,  H04W84/12 ,  H04L1/00 ,  H04W16/14 ,  H04W24/02

Abstract: Techniques for access terminal radio link monitoring on a shared communication medium are disclosed. In an aspect, an access terminal detects a missed reference signal event associated with a radio link established on the shared communication medium, wherein detecting the missed reference signal event comprises determining that the access terminal did not detect a reference signal for measuring a quality of the radio link transmitted during a reference signal configuration window, assigns an error metric to the missed reference signal event based on reference signal monitoring capabilities of the access terminal, and triggers a radio link failure based on the assigned error metric. In an aspect, the missed reference signal event may be a missed Discovery Reference Signaling (DRS) event, the error metric may be a Block Error Rate (BLER) weight, and the reference signal for measuring the quality of the radio link comprises a Cell-specific Reference Signal (CRS).

公开(公告)号：US09867194B2

公开(公告)日：2018-01-09

申请号：US13915389

申请日：2013-06-11

Applicant: QUALCOMM Incorporated

Inventor： Tamer Adel Kadous ,  Ashok Mantravadi

IPC: H04W72/04 ,  H04L5/00 ,  H04W28/04 ,  H04B7/0413 ,  H04W72/12

CPC classification number: H04W72/048 ,  H04B7/0413 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0091 ,  H04W28/04 ,  H04W72/04 ,  H04W72/1284

Abstract: A system capacity improvement is achieved by dynamically selecting a particular antenna mode of operation from the multiple radio access technology modes. In some implementations, the system capacity improvement is achieved by dynamically generating an indication of a user equipment (UE) antenna capability during a communication connection. The UE's indication of its antenna capability is dynamic and/or is subject to change throughout the duration of the communication connection. The indication may be sent to a base station.

公开(公告)号：US09832785B2

公开(公告)日：2017-11-28

申请号：US15181316

申请日：2016-06-13

Applicant: QUALCOMM INCORPORATED

Inventor： Tamer Adel Kadous ,  Pranav Dayal ,  Ashok Mantravadi ,  Peter Gaal ,  Jibing Wang

IPC: H04B1/00 ,  H04W72/12 ,  H04W52/24 ,  H04W88/06

CPC classification number: H04W72/1215 ,  H04W52/243 ,  H04W72/1231 ,  H04W88/06

Abstract: A method of wireless communication includes adjusting a channel quality indicator (CQI) to compensate for coexistence interference experienced between communication resources (such as an LTE radio and a Bluetooth radio). The CQI may be set to zero, falsely indicating to a serving enhanced NodeB that a UE is out of range, thereby creating a gap in LTE operation that may be used by an alternate radio access technology. To compensate for fluctuating interference, the CQI may be adjusted to incorporate average coexistence interference over a period of time. Alternatively, the CQI at a time may incorporate coexistence interference regardless of whether interference is experienced at that specific time. A CQI value may also be boosted to compensate for a CQI backoff. CQI may be adjusted to avoid a spiral of death effect.

公开(公告)号：US09686800B2

公开(公告)日：2017-06-20

申请号：US13829600

申请日：2013-03-14

Applicant: QUALCOMM Incorporated

Inventor： Arul Durai Murugan Palanivelu ,  Kapil Bhattad ,  Dhananjay Ashok Gore ,  Ashok Mantravadi

IPC: H04W72/08 ,  H04L1/00

CPC classification number: H04W72/085 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/0028

Abstract: Certain aspects of the present disclosure relate to techniques for reporting Channel Quality Indicator (CQI). In certain aspects, a User Equipment (UE) may schedule switch from at least a first set of zero or more antennas used by the UE, to at least one second set of zero or more antennas, wherein the first and second sets differ by at least one antenna. The UE may determine a Channel Quality Indicator (CQI) to be reported from the UE for use at a base station in a subsequent CQI subframe set, based at least on the scheduled switch. The UE may thereafter transmit the CQI to the base station.

公开(公告)号：US20130242780A1

公开(公告)日：2013-09-19

申请号：US13794645

申请日：2013-03-11

Applicant: QUALCOMM INCORPORATED

Inventor： Pranav Dayal ,  Ashok Mantravadi

IPC: H04W24/00

CPC classification number: H04W24/00 ,  H04W16/14 ,  H04W72/1215 ,  H04W88/06

Abstract: A user equipment (UE) may mitigate coexistence issues in multi-radio devices, where significant in-device coexistence problems can. The UE determines at least one potential virtual gap pattern configuration for a first radio access technology (RAT). The UE also selects one of the at least one potential gap pattern configuration based at least in part on protecting subframes which are used by the first RAT to perform clean signal reference measurements and/or based at least in part on performance of the second RAT. Further, the UE quiets transmit activities of a second RAT during protected subframes of the first RAT in the determined potential virtual gap pattern configuration.

Abstract translation: 用户设备（UE）可以减轻在多个无线电设备中的共存问题，其中显着的设备内共存问题可以。 UE确定用于第一无线电接入技术（RAT）的至少一个潜在虚拟间隙模式配置。 UE还至少部分地基于保护由第一RAT使用的子帧执行干净信号参考测量和/或至少部分地基于第二RAT的性能来选择至少一个潜在间隙模式配置中的一个。 此外，UE在所确定的潜在虚拟间隙模式配置中，在第一RAT的受保护子帧期间，对第二RAT的活动进行发送。

公开(公告)号：US20130194994A1

公开(公告)日：2013-08-01

申请号：US13753352

申请日：2013-01-29

Applicant: QUALCOMM Incorporated

Inventor： Pranav Dayal ,  Tamer Adel Kadous ,  Ashok Mantravadi

IPC: H04W76/04

CPC classification number: H04W76/28 ,  H04L1/1812 ,  H04L1/188 ,  H04L1/1887 ,  H04W72/1215

Abstract: A user equipment (UE) may manage coexistence between multiple radio access technologies (RATs) utilized by the UE to allow a first RAT to be active during times when communications of a second RAT of the UE are inactive. In some instances, the UE may indicate discontinuous reception (DRX) operation of the UE to allow for time-division multiplexed (TDM) operation between the first RAT and the second RAT. The UE may set a hybrid automatic repeat request (HARQ) configuration to allow for a HARQ retransmission of a packet of the first RAT, originally received in a first DRX cycle, during a second DRX cycle.

Abstract translation: 用户设备（UE）可以管理由UE使用的多个无线接入技术（RAT）之间的共存，以允许第一RAT在UE的第二RAT的通信不活动的时间期间是活动的。 在一些情况下，UE可以指示UE的不连续接收（DRX）操作，以允许在第一RAT和第二RAT之间进行时分复用（TDM）操作。 UE可以在第二DRX周期期间设置混合自动重传请求（HARQ）配置以允许原始在第一DRX周期中接收到的第一RAT的分组的HARQ重传。

公开(公告)号：US11646777B2

公开(公告)日：2023-05-09

申请号：US17246361

申请日：2021-04-30

Applicant: QUALCOMM Incorporated

Inventor： Abhinav Sridhar ,  Paolo Minero ,  Yongle Wu ,  Ashok Mantravadi ,  Hari Sankar ,  Alexei Yurievitch Gorokhov

IPC: H04B7/06 ,  H04B17/318 ,  H04L25/02 ,  H04W24/10 ,  H04B7/08 ,  H04W84/12

CPC classification number: H04B7/0626 ,  H04B7/0632 ,  H04B7/088 ,  H04B17/318 ,  H04L25/0204 ,  H04L25/0212 ,  H04W24/10 ,  H04W84/12

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may determine, based at least in part on two or more measurements on a channel taken at different points in time, that the channel is classified as static. The wireless communication device may perform at least one optimization based at least in part on determining that the channel is classified as static. For example, the at least one optimization may include modifying a channel state feedback procedure, reducing a periodicity associated with a measurement gap, modifying a filtering associated with measurements of the channel, reducing a threshold associated with beam switching, and/or refraining from performing at least one filtering at a radio frequency receiver of the wireless communication device. Numerous other aspects are described.