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31.发明授权公开(公告)号：US10887053B1
公开(公告)日：2021-01-05
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: H04B7/00 , 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.
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公开(公告)号：US20170324458A1
公开(公告)日：2017-11-09
申请号：US15583914
申请日：2017-05-01
Applicant: QUALCOMM Incorporated
Inventor： Qijia Liu , Ashok Mantravadi , Jae Won Yoo , Amir Aminzadeh Gohari
IPC: H04B7/04 , H04B7/0426 , H04L5/00 , H04W72/12
CPC classification number: H04B7/0486 , H04B7/0413 , H04B7/0426 , H04B7/0452 , H04B7/0817 , H04L5/006 , H04L5/0094 , H04W52/0245 , H04W72/1278 , Y02D70/122 , Y02D70/1222 , Y02D70/1242 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/146 , Y02D70/23 , Y02D70/24 , Y02D70/444
Abstract: Techniques are described for wireless communication at a wireless communication device. A determination may be made regarding the number of receive chains, of a plurality of receive chains, to enable for a channel. Power to the receive chains may be regulated based on the determined number of enabled receive chains. The determination may be based on a transmission scheduling rate for the wireless communication device and a rank for the channel. In some examples, the determination may further be based on a channel quality of the channel and/or a type of traffic scheduled for the channel.
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公开(公告)号：US09379789B2
公开(公告)日：2016-06-28
申请号：US14318122
申请日：2014-06-27
Applicant: QUALCOMM Incorporated
Inventor： Jamie Menjay Lin , Ashok Mantravadi , Francesco Negro , Petru Cristian Budianu , Taesang Yoo , Xiaoxia Zhang , Tao Luo
CPC classification number: H04B7/0404 , H04B7/0608 , H04B7/0691 , H04B7/0802 , H04B7/0874
Abstract: Dynamic adjustment of antenna selection period at a wireless communication device or user equipment having two or more antennas. The described approaches consider an antenna selection performance metric. The antenna selection performance metric may include both measurement overhead (capacity loss due to measurements) and antenna switching capacity gain (gain in capacity through switching antenna subsets). The antenna selection performance metric may further include an estimate of UE speed or an antenna selection change rate. The antenna selection period may be adjusted by increasing or decreasing the antenna selection period based on the antenna selection performance metric. Antenna selection may be enabled or disabled based on the antenna selection performance metric.
Abstract translation: 具有两个或多个天线的无线通信设备或用户设备的天线选择周期的动态调整。 所描述的方法考虑天线选择性能度量。 天线选择性能度量可以包括测量开销（由测量引起的容量损失）和天线切换容量增益（通过开关天线子集的容量增益）。 天线选择性能度量还可包括UE速度或天线选择变化率的估计。 可以通过基于天线选择性能度量来增加或减少天线选择周期来调整天线选择周期。 可以基于天线选择性能度量来启用或禁用天线选择。
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公开(公告)号：US09246728B2
公开(公告)日：2016-01-26
申请号：US13767834
申请日：2013-02-14
Applicant: QUALCOMM Incorporated
Inventor： Michael Mao Wang , Murali Ramaswamy Chari , Ashok Mantravadi , Fuyun Ling , Rajiv Vijayan , Raghuraman Krishnamoorthi
IPC: H04B7/216 , H04L27/26 , H04L1/00 , H03M13/27 , H03M13/31 , H03M13/25 , H04L5/00 , H03M13/29 , H04L1/04
CPC classification number: H04L27/2601 , H03M13/258 , H03M13/271 , H03M13/2957 , H03M13/31 , H04L1/0071 , H04L1/04 , H04L5/0007 , H04L5/0042 , H04L5/0044 , H04L5/0064 , H04L5/0083 , H04L27/2626 , H04L27/2634
Abstract: A system and method for frequency diversity uses interleaving in a wireless communication system utilizing orthogonal frequency division multiplexing (OFDM) with various FFT sizes. Subcarriers of one or more interlaces are interleaved in a bit reversal fashion and the one or more interlaces are interleaved in the bit reversal fashion.
Abstract translation: 用于频率分集的系统和方法在利用具有各种FFT大小的正交频分复用（OFDM）的无线通信系统中使用交织。 一个或多个交错的子载波以位反向方式进行交织，并且该一个或多个交织以比特反转方式进行交织。
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35.发明授权Methods and apparatus for transmitting clear to send (CTS)-to-self indication 有权用于发送清晰发送（CTS）到自我指示的方法和装置
公开(公告)号：US09100975B2
公开(公告)日：2015-08-04
申请号：US13957241
申请日：2013-08-01
Applicant: QUALCOMM Incorporated
Inventor： Arul Durai Murugan Palanivelu , Kapil Bhattad , Dhananjay Ashok Gore , Ashok Mantravadi , Ahmed Kamel Sadek
CPC classification number: H04W72/12 , H04B1/0064 , H04W52/0235 , H04W72/1215 , H04W88/10 , Y02D70/1242 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/146
Abstract: Certain aspects of the present disclosure relate to techniques for transmitting a clear to send (CTS)-to-self indication. According to certain aspects, a method for wireless communications by a wireless device is provided. The method generally includes scheduling a first antenna at the wireless device for communication using one of a first radio access technology (RAT) or a second RAT, scheduling one or more other antennas at the wireless device configured for communication using the first RAT, for communication using the second RAT in order to enable one of transmit or receive diversity on the second RAT or simultaneous communication on the first and second RATs, and transmitting an idle-mode indication to force he first RAT to an idle mode.
Abstract translation: 本公开的某些方面涉及用于发送明确发送（CTS）到自身指示的技术。 根据某些方面，提供了一种由无线设备进行无线通信的方法。 该方法通常包括在无线设备处调度第一天线以使用第一无线电接入技术（RAT）或第二RAT中的一个进行通信，在被配置为使用第一RAT进行通信的无线设备上调度一个或多个其他天线用于通信 使用第二RAT以便实现第二RAT上的发射或接收分集或第一RAT和第二RAT上的同时通信中的一个，并且发送空闲模式指示以迫使他的第一RAT进入空闲模式。
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公开(公告)号：US08923208B2
公开(公告)日：2014-12-30
申请号：US13753352
申请日：2013-01-29
Applicant: QUALCOMM Incorporated
Inventor： Pranav Dayal , Tamer Adel Kadous , Ashok Mantravadi
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。
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公开(公告)号：US20130329665A1
公开(公告)日：2013-12-12
申请号：US13915389
申请日：2013-06-11
Applicant: QUALCOMM Incorporated
Inventor： Tamer Adel Kadous , Ashok Mantravadi
IPC: H04W72/04
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.
Abstract translation: 通过从多个无线电接入技术模式动态地选择特定天线操作模式来实现系统容量改进。 在一些实现中，通过在通信连接期间动态生成用户设备（UE）天线能力的指示来实现系统容量改进。 UE在其通信连接的整个持续时间内对其天线能力的指示是动态的和/或可能改变的。 该指示可以被发送到基站。
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38.发明授权
公开(公告)号：US11924666B2
公开(公告)日：2024-03-05
申请号：US17647805
申请日：2022-01-12
Applicant: QUALCOMM Incorporated
Inventor： Jae Won Yoo , Hari Sankar , Alexei Yurievitch Gorokhov , Ashok Mantravadi , Weng Chon Ao , Paolo Minero , Abhinav Sridhar , Shriram Swaminathan , Gi Hong Song
IPC: H04W24/10 , H04B17/318 , H04B17/336 , H04L5/00 , H04W56/00
CPC classification number: H04W24/10 , H04B17/318 , H04B17/336 , H04L5/0051 , H04W56/001
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may measure a first energy level of a demodulation reference signal (DMRS). The UE may measure a second energy level of at least one of a tracking reference signal (TRS) or a synchronization signal block (SSB). The UE may determine, based at least in part on the first energy level and the second energy level, a DMRS signal-to-noise ratio (SNR). The UE may perform, based at least in part on the DMRS SNR, channel estimation for a physical channel associated with a communication to determine an estimated channel. The UE may perform, based at least in part on the estimated channel, demodulation processing for the communication. Numerous other aspects are described.
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公开(公告)号：US11659529B2
公开(公告)日：2023-05-23
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 , H04W72/12 , H04W72/14 , H04W72/0446
CPC classification number: H04W72/0446 , H04W72/0413 , H04W72/1284 , H04W72/14
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.
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公开(公告)号：US20220070807A1
公开(公告)日：2022-03-03
申请号：US17405824
申请日：2021-08-18
Applicant: QUALCOMM Incorporated
Inventor： Chinmay Shankar VAZE , Alexei Yurievitch Gorokhov , Yongle Wu , Paolo Minero , Hari Sankar , Ashok Mantravadi , Raghu Narayan Challa , Arvind Vardarajan Santhanam
Abstract: A device may selectively listen for a tracking reference signal (TRS) during connected mode discontinuous reception (CDRx) based on whether the device is to switch between repeaters of a base station (such as during travel). A device may determine whether the device is in a high speed train (HST) scenario (such as based on a difference in frequency errors generated using a synchronization signal block (SSB) and generated using a TRS, based on a trajectory of a frequency error or a frequency error difference over time, based on instantaneous frequency errors, etc.). When the device is in a HST scenario, the device listens for a TRS during CDRx, and the device generates a frequency error using the TRS. When the device is not in a HST scenario, the device prevents listening for a TRS during CDRx (with a SSB received during CDRx to be used to generate a frequency error).
