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公开(公告)号：US09185614B2
公开(公告)日：2015-11-10
申请号：US13671017
申请日：2012-11-07
Applicant: QUALCOMM Incorporated
IPC: H04L12/26 , H04W36/00 , H04B17/309 , H04B17/318 , H04W24/10
CPC classification number: H04W36/0083 , H04B17/309 , H04B17/318 , H04W24/10 , H04W36/0088
Abstract: Methods and apparatus for computing measurement metrics in a wireless communications network are provided. One example method generally includes obtaining a channel impulse response (CIR) from one or more reference signals (RSs) transmitted from one or more antennas of a base station (BS); calculating an absolute square per element of the CIR to generate channel energy response (CER) elements; calculating a threshold value based on a noise variance estimated from a portion of the CER elements; selecting CER elements that exceed the threshold value; and computing a reference signal received power (RSRP) value based on the selected CER elements.
Abstract translation: 提供了用于计算无线通信网络中的测量度量的方法和装置。 一个示例性方法通常包括从从基站（BS）的一个或多个天线发送的一个或多个参考信号（RS）获得信道脉冲响应（CIR）; 计算CIR的每个元素的绝对平方，以产生信道能量响应（CER）元素; 基于从所述CER元素的一部分估计的噪声方差来计算阈值; 选择超过阈值的CER元素; 以及基于所选择的CER元素计算参考信号接收功率（RSRP）值。
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公开(公告)号：US11671202B2
公开(公告)日：2023-06-06
申请号：US17108667
申请日：2020-12-01
Applicant: QUALCOMM incorporated
Inventor： Ahmed Omar Desouky Ali , Brian Clarke Banister , Supratik Bhattacharjee , Udayan Murli Bhawnani , Jittra Jootar , Timothy Paul Pals , Rebecca Wen-Ling Yuan , Arvind Vardarajan Santhanam , Zhibin Dang , Omesh Kumar Handa , Sibasish Das , Chetan Jagdeesh Bharadwaj , Gautham Hariharan , Min Wang , Farrukh Rashid , Nan Zhang , Sumanth Kumar Kota
IPC: H04L1/18 , H04W72/12 , H04L1/1812 , H04W72/1268 , H04L1/1829
CPC classification number: H04L1/1812 , H04L1/1861 , H04W72/1268
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may adaptively switch between hybrid automatic repeat request (HARQ) monitoring modes to support power savings. In a first HARQ skipping mode, the UE may transmit an uplink message corresponding to a HARQ identifier and may receive a positive acknowledgment (ACK) message in a HARQ monitoring occasion associated with the HARQ identifier. Upon receiving the ACK message, the UE refrains from monitoring a subsequent HARQ monitoring occasion associated with the HARQ identifier while in the first HARQ skipping mode (e.g., an aggressive HARQ skipping mode). The UE may periodically enter a periodic evaluation mode from the first HARQ skipping mode, in which the UE monitors a subsequent HARQ monitoring occasion after receiving an ACK message to check for false ACK messages. If a false ACK message is detected, the UE enters a first HARQ skipping prohibited mode.
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公开(公告)号：US20210176013A1
公开(公告)日：2021-06-10
申请号：US17108667
申请日：2020-12-01
Applicant: QUALCOMM Incorporated
Inventor： Ahmed Omar Desouky Ali , Brian Clarke Banister , Supratik Bhattacharjee , Udayan Murli Bhawnani , Jittra Jootar , Timothy Paul Pals , Rebecca Wen-Ling Yuan , Arvind Vardarajan Santhanam , Zhibin Dang , Omesh Kumar Handa , Sibasish Das , Chetan Jagdeesh Bharadwaj , Gautham Hariharan , Min Wang , Farrukh Rashid , Nan Zhang , Sumanth Kumar Kota
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may adaptively switch between hybrid automatic repeat request (HARQ) monitoring modes to support power savings. In a first HARQ skipping mode, the UE may transmit an uplink message corresponding to a HARQ identifier and may receive a positive acknowledgment (ACK) message in a HARQ monitoring occasion associated with the HARQ identifier. Upon receiving the ACK message, the UE refrains from monitoring a subsequent HARQ monitoring occasion associated with the HARQ identifier while in the first HARQ skipping mode (e.g., an aggressive HARQ skipping mode). The UE may periodically enter a periodic evaluation mode from the first HARQ skipping mode, in which the UE monitors a subsequent HARQ monitoring occasion after receiving an ACK message to check for false ACK messages. If a false ACK message is detected, the UE enters a first HARQ skipping prohibited mode.
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Patent Agency Ranking
公开(公告)号：US20220361225A1
公开(公告)日：2022-11-10
申请号：US17239391
申请日：2021-04-23
Applicant: QUALCOMM Incorporated
Inventor： Ritesh Sood , Sibasish Das , Weixian Shen , Udayan Bhawnani , Manav LNU , Vivek Kumar Rangamgari
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive one or more downlink grants while operating in accordance with a first receive state during a threshold number of transmission time intervals (TTIs). The UE may determine a weighting factor for each TTI within the threshold number of TTIs, where the determined weighting factors are based on a spectral efficiency (SPEF) of channel communications between the UE and a base station. The UE may sum a subset of the weighting factors to determine a transition determination value, and may transition from the first receive state to a second receive state based on evaluation of the transition determination value.
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公开(公告)号：US20130121187A1
公开(公告)日：2013-05-16
申请号：US13671017
申请日：2012-11-07
Applicant: Qualcomm Incorporated
IPC: H04W24/10
CPC classification number: H04W36/0083 , H04B17/309 , H04B17/318 , H04W24/10 , H04W36/0088
Abstract: Methods and apparatus for computing measurement metrics in a wireless communications network are provided. One example method generally includes obtaining a channel impulse response (CIR) from one or more reference signals (RSs) transmitted from one or more antennas of a base station (BS); calculating an absolute square per element of the CIR to generate channel energy response (CER) elements; calculating a threshold value based on a noise variance estimated from a portion of the CER elements; selecting CER elements that exceed the threshold value; and computing a reference signal received power (RSRP) value based on the selected CER elements.
Abstract translation: 提供了用于计算无线通信网络中的测量度量的方法和装置。 一个示例性方法通常包括从从基站（BS）的一个或多个天线发送的一个或多个参考信号（RS）获得信道脉冲响应（CIR）; 计算CIR的每个元素的绝对平方，以产生信道能量响应（CER）元素; 基于从所述CER元素的一部分估计的噪声方差来计算阈值; 选择超过阈值的CER元素; 以及基于所选择的CER元素计算参考信号接收功率（RSRP）值。
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公开(公告)号：US11997687B2
公开(公告)日：2024-05-28
申请号：US17239391
申请日：2021-04-23
Applicant: QUALCOMM Incorporated
Inventor： Ritesh Sood , Sibasish Das , Weixian Shen , Udayan Bhawnani , Manav Lnu , Vivek Kumar Rangamgari
IPC: H04W72/23 , H04W72/0446 , H04W72/21
CPC classification number: H04W72/23 , H04W72/0446 , H04W72/21
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive one or more downlink grants while operating in accordance with a first receive state during a threshold number of transmission time intervals (TTIs). The UE may determine a weighting factor for each TTI within the threshold number of TTIs, where the determined weighting factors are based on a spectral efficiency (SPEF) of channel communications between the UE and a base station. The UE may sum a subset of the weighting factors to determine a transition determination value, and may transition from the first receive state to a second receive state based on evaluation of the transition determination value.
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7.发明授权公开(公告)号：US10667222B2
公开(公告)日：2020-05-26
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
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.
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公开(公告)号：US20130121188A1
公开(公告)日：2013-05-16
申请号：US13671877
申请日：2012-11-08
Applicant: QUALCOMM INCORPORATED
IPC: H04W56/00
CPC classification number: H04W56/00 , H04J11/0073 , H04J11/0076 , H04L27/0014 , H04L27/261 , H04L27/2657 , H04L27/2675 , H04L2027/0034 , H04L2027/0036
Abstract: Certain aspects of the present disclosure relate to a technique for estimating a frequency offset of a local oscillator using primary synchronization signal (PSS) and secondary synchronization signal (SSS) while initially acquiring a long term evolution (LTE) signal. In certain aspects, a frequency offset estimation procedure may include PSS-based frequency offset estimation and SSS-based frequency offset refinement. The PSS-based frequency offset estimation may include determining a suitable reference PSS and using the ascertained reference PSS to estimate a PSS-based frequency offset. The SSS-based frequency offset refinement may include determining a suitable reference SSS using the PSS based frequency offset and using the ascertained reference SSS to refine PSS-based frequency offset from the PSS-based frequency offset estimation.
Abstract translation: 本公开的某些方面涉及在初始获取长期演进（LTE）信号的同时使用主同步信号（PSS）和辅同步信号（SSS）来估计本地振荡器的频率偏移的技术。 在某些方面，频率偏移估计过程可以包括基于PSS的频偏估计和基于SSS的频偏修正。 基于PSS的频率偏移估计可以包括确定合适的参考PSS并且使用确定的参考PSS来估计基于PSS的频率偏移。 基于SSS的频率偏移精化可以包括使用基于PSS的频率偏移来确定合适的参考SSS，并且使用所确定的参考SSS来从基于PSS的频率偏移估计来精简基于PSS的频率偏移。
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