公开(公告)号：US20220345334A1

公开(公告)日：2022-10-27

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 ,  H04W74/08

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：US20200037264A1

公开(公告)日：2020-01-30

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 ,  H04W52/14 ,  H04W52/52 ,  H04W72/04 ,  H04L5/00 ,  H04L1/20 ,  H04L1/00

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：US20240089862A1

公开(公告)日：2024-03-14

申请号：US18511795

申请日：2023-11-16

Applicant: QUALCOMM Incorporated

Inventor： Farhad MESHKATI ,  Alexei Yurievitch GOROKHOV ,  Sanghoon KIM ,  Troy CURTISS ,  Dinesh Kumar DEVINENI ,  Ashok MANTRAVADI ,  Lin LU

IPC: H04W52/14 ,  H04L5/00 ,  H04L25/02 ,  H04W52/36 ,  H04W52/42

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.

公开(公告)号：US20180160328A1

公开(公告)日：2018-06-07

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 ,  H04W84/12 ,  H04L5/00 ,  H04B7/06

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：US20160309494A1

公开(公告)日：2016-10-20

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: H04W72/12 ,  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.

Abstract translation: 一种无线通信方法包括调整信道质量指示符（CQI）以补偿通信资源（例如LTE无线电和蓝牙无线电）之间经历的共存干扰。 CQI可以被设置为零，向服务增强型节点B虚拟地指示UE超出范围，从而在可能由替代无线电接入技术使用的LTE操作中产生间隙。 为了补偿波动的干扰，可以调整CQI以在一段时间内并入平均共存干扰。 或者，无论在该特定时间是否经历干扰，一次的CQI可以并入共存干扰。 还可以提升CQI值以补偿CQI回退。 可以调整CQI以避免死亡效应的螺旋。

公开(公告)号：US20240414516A1

公开(公告)日：2024-12-12

申请号：US18698766

申请日：2021-12-10

Applicant: QUALCOMM Incorporated

Inventor： Yongle WU ,  Jiaheng LIU ,  Shanshan WANG ,  Nanrun WU ,  Ashok MANTRAVADI ,  Raghu Narayan CHALLA

IPC: H04W8/02 ,  H04W76/38 ,  H04W84/00

Abstract: Aspects are provided which allow a UE to apply new radio high-speed train mode determination and false alarm suppression in HST deployments. The UE combines a plurality of indications associated with a high-speed train (HST) mode detection into a consolidated HST mode configuration signal. The UE determines whether to suppress the consolidated HST mode configuration signal based on a mobility metric of the UE and a plurality of thresholds. The UE transitions into a HST mode when the consolidated HST mode configuration signal is not suppressed based on the mobility metric of the UE exceeding at least one of the plurality of thresholds. As a result, false HST mode flags may be avoided and HST mode detection success rates may thereby be improved.

公开(公告)号：US20230269710A1

公开(公告)日：2023-08-24

申请号：US18167642

申请日：2023-02-10

Applicant: QUALCOMM Incorporated

Inventor： Arnaud MEYLAN ,  Arvind Vardarajan SANTHANAM ,  Sunil KANDUKURI ,  Ashok MANTRAVADI ,  Tingfang JI ,  Gavin Bernard HORN ,  Peter GAAL ,  Seyedkianoush HOSSEINI

IPC: H04W72/0446 ,  H04W72/21 ,  H04W72/23

CPC classification number: H04W72/0446 ,  H04W72/21 ,  H04W72/23

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：US20210385825A1

公开(公告)日：2021-12-09

申请号：US16896871

申请日：2020-06-09

Applicant: QUALCOMM Incorporated

Inventor： Arnaud MEYLAN ,  Arvind Vardarajan SANTHANAM ,  Sunil KANDUKURI ,  Satashu GOEL ,  Ashok MANTRAVADI ,  Sitaramanjaneyulu KANAMARLAPUDI ,  Vaibhav KUMAR ,  Mahbod Ghelichi

IPC: H04W72/12 ,  H04W72/14 ,  H04W28/02 ,  H04W80/02 ,  H04W76/28

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive downlink data that is associated with triggering a feedback message; transmit, before receiving the feedback message for the downlink data at a component of the user equipment, a scheduling request to request an allocation of a set of resources for transmitting the feedback message; and transmit the feedback message in connection with the set of resources. Numerous other aspects are provided.

公开(公告)号：US20210028886A1

公开(公告)日：2021-01-28

申请号：US16522350

申请日：2019-07-25

Applicant: QUALCOMM Incorporated

Inventor： Alexandre PIERROT ,  Hari SANKAR ,  Shravan Kumar Reddy GARLAPATI ,  Afshin HAFTBARADARAN ,  Alessandro RISSO ,  Jae Ho RYU ,  Ashok MANTRAVADI

IPC: H04L1/00 ,  H04B17/336

Abstract: Aspects described herein relate to decoding downlink control information (DCI) based on multiple DCI sizes. A first hypothesis of multiple hypotheses for decoding a communication received in a control channel search space, wherein the multiple hypotheses are based on different corresponding DCI sizes can be determined. The communication received in the control channel search space can be decoded based on the first hypothesis. For each of the multiple hypotheses and based on the different corresponding DCI sizes, information bits can be extracted from the communication as decoded. For each extracting of the information bits, cyclic redundancy check (CRC) can be performed based on one of the different corresponding DCI sizes to determine whether extracting of the information bits yields DCI.

公开(公告)号：US20180302864A1

公开(公告)日：2018-10-18

申请号：US15926934

申请日：2018-03-20

Applicant: QUALCOMM Incorporated

Inventor： Gaurav NIGAM ,  Sibasish DAS ,  Supratik BHATTACHARJEE ,  Ankit VERMA ,  Hongbo YAN ,  Navid EHSAN ,  Ashok MANTRAVADI ,  Surendra BOPPANA

IPC: H04W52/32 ,  H04W52/14

CPC classification number: H04W52/325 ,  H04W52/143 ,  H04W52/50 ,  H04W72/042 ,  H04W72/0446

Abstract: Aspects of the present disclosure provide techniques for the user equipment (UE) to select a power management mode from a plurality of power management modes supported by the UE based on decoding of a portion of the downlink subframe. For example, when the UE receives a subframe from a base station, the UE may decode a control channel region of the subframe to determine whether the subframe includes a channel grant allocated to the UE. If no channel grant is included in the subframe, the UE may select a power management mode for the UE from the plurality of power management modes supported by the UE that maximizes the UE's sleep opportunities while balancing the deficient performance costs.