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91. 发明申请

US20150148053A1 METHOD OF SYNCHRONIZATION WITHIN AN LTE/LTE-A SYSTEM IN UNLICENSED SPECTRUM 有权
标题翻译：在不同频谱中的LTE / LTE-A系统中同步的方法
公开(公告)号：US20150148053A1
公开(公告)日：2015-05-28
申请号：US14552127
申请日：2014-11-24
申请人： QUALCOMM INCORPORATED
发明人： Shimman Arvind Patel , Tao Luo , Naga Bhushan , Peter Gaal , Hao Xu
IPC分类号： H04W56/00 , H04W72/04
CPC分类号： H04W56/001 , H04W16/14 , H04W28/08 , H04W72/0426 , H04W72/0446 , H04W74/0808 , H04W84/042 , H04W88/08
摘要： Methods, systems, and devices are described for wireless communication. One method may include receiving, at a first base station, at least one clear channel assessment (CCA)-exempt transmission (CET) indicating timing information of at least a second base station over a shared spectrum. A timing of the first base station may be adjusted based on the received timing information of the second base station. Another method of wireless communication may include identifying a CCA slot assigned to a first base station for a frame, which may be associated with time synchronization, of a shared spectrum. A CCA may be performed at the identified CCA slot for the frame. When the CCA is successful, a first timing information of the first base station may be selectively transmitted during the frame. When the CCA is unsuccessful, a second timing information of a second base station may be listened for during the frame.
摘要翻译：描述了用于无线通信的方法，系统和设备。一种方法可以包括在第一基站处接收指示共享频谱上至少第二基站的定时信息的至少一个清除信道评估（CCA）免除传输（CET）。可以基于接收到的第二基站的定时信息来调整第一基站的定时。无线通信的另一种方法可以包括识别为共享频谱的可能与时间同步相关联的帧分配给第一基站的CCA时隙。可以在所识别的帧的CCA时隙上执行CCA。当CCA成功时，可以在帧期间选择性地发送第一基站的第一定时信息。当CCA不成功时，可以在帧期间收听第二基站的第二定时信息。

92. 发明授权

US11622351B2 Configuration of frequency bands for full-duplex slots 有权
公开(公告)号：US11622351B2
公开(公告)日：2023-04-04
申请号：US17210462
申请日：2021-03-23
申请人： QUALCOMM Incorporated
发明人： Ahmed Attia Abotabl , Wanshi Chen , Muhammad Sayed Khairy Abdelghaffar , Huilin Xu , Shimman Arvind Patel , Krishna Kiran Mukkavilli , Tingfang Ji
IPC分类号： H04W72/04 , H04W72/0453 , H04L5/14
摘要： Methods, systems, and devices for wireless communications are described. A frequency band configuration for a full-duplex slot may be indicated, where a frequency band configuration may include one or more downlink frequency bands and one or more uplink frequency bands. In some cases, a frequency band configuration may also include one or more guard bands. A user equipment (UE) may determine the frequency band configuration for a full-duplex slot based on a frequency configuration indication, which may include an index for a table of frequency band configurations, one or more bitmaps, or respective start and length indications for each frequency band. A frequency band configuration may apply to one slot or to multiple slots.

93. 发明授权

US11611422B2 Sub-band-full-duplex adaptive base station transceiver 有权
公开(公告)号：US11611422B2
公开(公告)日：2023-03-21
申请号：US17086368
申请日：2020-10-31
申请人： QUALCOMM Incorporated
发明人： Charline Hao , Lida Akhoondzadehasl , Joseph Patrick Burke , Dai Lu , Muhammad Sayed Khairy Abdelghaffar , Allen Minh-Triet Tran , Shimman Arvind Patel , Tingfang Ji , Krishna Kiran Mukkavilli
IPC分类号： H04B7/06 , H04L5/14 , H04B7/08 , H04W88/08 , H04L49/25
摘要： A base station is disclosed that includes two separated antenna arrays. In a TDD mode of operation, both arrays are used for either transmit or receive. In a sub-band full-duplex mode of operation, one array is used to transmit downlink symbols while the remaining array is used to receive uplink symbols.

94. 发明授权

US11497007B2 Sounding reference signal configuration and transport block size scaling in low latency systems 有权
公开(公告)号：US11497007B2
公开(公告)日：2022-11-08
申请号：US15969586
申请日：2018-05-02
申请人： QUALCOMM Incorporated
发明人： Seyedkianoush Hosseini , Wanshi Chen , Shimman Arvind Patel , Peter Gaal
IPC分类号： H04W72/02 , H04W72/04 , H04W52/32 , H04L5/00 , H04W52/14 , H04L25/02 , H04W52/10 , H04W52/36
摘要： Methods, systems, and devices for wireless communication are described. A base station may transmit an indication of first and second configurations for sounding reference signal (SRS) transmissions during first and second transmission time intervals (TTIs) having different durations. A user equipment (UE) may identify an SRS to be transmitted and determine a configuration for the SRS transmission based on the TTI duration and the received indication of the first and second configurations. The UE may then transmit the SRS based on the configuration. A base station may receive an SRS during a TTI and may determine a channel quality based at least in part on the SRS. Additionally, a device may identify data to transmit during a TTI, determine a number of resource elements available for transmission of the data during a TTI, and determine a transport block size (TBS) for the data transmission based on the available resource elements.

95. 发明授权

US11329853B2 Tone reservation for peak to average power ratio reduction 有权
公开(公告)号：US11329853B2
公开(公告)日：2022-05-10
申请号：US17306762
申请日：2021-05-03
申请人： QUALCOMM Incorporated
发明人： Saeid Sahraei , Gokul Sridharan , Hung Dinh Ly , June Namgoong , Krishna Kiran Mukkavilli , Naga Bhushan , Tingfang Ji , Peter Gaal , Taesang Yoo , Shimman Arvind Patel
IPC分类号： H04L27/26
摘要： Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a resource allocation indicating a plurality of transmission tones comprising a subset of data tones of a plurality of data tones and a subset of peak reduction tones (PRTs) of a plurality of PRTs, wherein the resource allocation indicates locations for the plurality of data tones and locations for the plurality of PRTs within a particular bandwidth, wherein the locations for the plurality of PRTs are arranged relative to the locations for the plurality of data tones according to a PRT subsequence of a universal PRT sequence, and wherein the PRT subsequence corresponds to a sub-band of the particular bandwidth; and transmit a data transmission using a waveform based at least in part on the resource allocation. Numerous other aspects are provided.

96. 发明申请

US20210344543A1 PEAK-TO-AVERAGE POWER RATIO REDUCTION WITH PSEUDO-RANDOM IN-BAND TONE RESERVATION 有权
公开(公告)号：US20210344543A1
公开(公告)日：2021-11-04
申请号：US17241393
申请日：2021-04-27
申请人： QUALCOMM Incorporated
发明人： Saeid Sahraei , June Namgoong , Krishna Kiran Mukkavilli , Naga Bhushan , Tingfang Ji , Peter Gaal , Taesang Yoo , Gokul Sridharan , Shimman Arvind Patel
IPC分类号： H04L27/26 , H04W72/04
摘要： Wireless communications systems may configure a subset of allocated resources (e.g., one or more resource elements (REs) of one or more allocated resource blocks (RBs)) as peak reduction tones (PRTs) for a peak-cancelation signal. For instance, wireless communications systems may configure a fixed PRT allocation based on a Costas array. In some examples, each column of a Costas array may correspond to a RB of a set of allocated resources. A transmitting device may thus identify one or more PRT REs based on the Costas array and a mapping of allocated RBs to the columns of the Costas array. For instance, a transmitting device may identify a pattern of PRT REs to use for a peak-cancellation signal based at least in part on a configured Costas array (e.g., where the peak-cancellation signal may reduce peaks of a corresponding data signal to ultimately reduce peak-to-average power ratio (PAPR) of a transmission).

97. 发明申请

US20210297226A1 FULL DUPLEX COMMUNICATION TECHNIQUES 有权
公开(公告)号：US20210297226A1
公开(公告)日：2021-09-23
申请号：US17204644
申请日：2021-03-17
申请人： QUALCOMM Incorporated
发明人： Ahmed Attia Abotabl , Muhammad Sayed Khairy Abdelghaffar , Huillin Xu , Wanshi Chen , Krishna Kiran Mukkavilli , Tingfang Ji , Shimman Arvind Patel
IPC分类号： H04L5/14 , H04W72/04
摘要： Full-duplex communication techniques are described. Some aspects may utilize full-duplex-slot formats, such as may be provided in addition to or in the alternative to uplink, downlink, and flexible slot formats. A full-duplex slot implemented in accordance with a full-duplex-slot format provides a slot in which the frequency band may be used for both uplink and downlink transmissions. Downlink and/or uplink transmissions of a full-duplex slot may occur in overlapping frequency bands or in adjacent frequency bands. A first wireless device may transmit slot signaling comprising one or more full-duplex-slot-indicator parameters. A second wireless device may base one or more full-duplex slot configuration determinations on a full-duplex-slot configuration. The second wireless device may apply one or more full-duplex-slot-indicator-parameter rules with respect to full-duplex-slot-indicator parameters for determining a full-duplex-slot format. Other aspects and features are also claimed and described.

98. 发明申请

US20210152418A1 CONFIGURATIONS FOR FULL-DUPLEX COMMUNICATION SYSTEMS 有权
公开(公告)号：US20210152418A1
公开(公告)日：2021-05-20
申请号：US17063517
申请日：2020-10-05
申请人： QUALCOMM Incorporated
发明人： Muhammad Sayed Khairy Abdelghaffar , Hung Dinh Ly , June Namgoong , Huilin Xu , Peter Pui Lok Ang , Shimman Arvind Patel , Krishna Kiran Mukkavilli , Joseph Patrick Burke
IPC分类号： H04L12/24 , H04L5/14 , H04W72/04 , H04B7/06
摘要： Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify one or more radio frequency (RF) spectrum bands for full-duplex communications, and may signal an indication of the UE's capability to support full-duplex communications for each RF spectrum band. The UE may further receive one or more configurations for full-duplex communications, which, in some examples, may be based on the UE's indicated capabilities. As an example, the UE may identify a guard band configuration for full-duplex communications, where the guard band configuration may be based on one or more aspects of resources used for the full-duplex communications. In other cases, the UE may identify a transmission hopping or antenna switching configuration for full-duplex communications. In any case, the UE may communicate with a base station in accordance with the one or more configurations and the UE's capabilities.

99. 发明授权

US11006409B2 Latency reduction techniques in wireless communications 有权
公开(公告)号：US11006409B2
公开(公告)日：2021-05-11
申请号：US16390329
申请日：2019-04-22
申请人： QUALCOMM Incorporated
发明人： Wanshi Chen , Seyedkianoush Hosseini , Peter Gaal , Srinivas Yerramalli , Hao Xu , Jing Sun , Shimman Arvind Patel , Aamod Khandekar
IPC分类号： H04W72/04 , H04L1/18 , H04L5/00 , H04W76/27 , H04W88/02
摘要： Methods, systems, and devices for wireless communication are described that provide for reduced timing between certain downlink communications and responsive uplink communications relative to certain legacy systems (e.g., legacy LTE systems). A user equipment (UE) or base station may be capable of operating using two or more timing configurations that each include an associated time period between receipt of a downlink communication (e.g., a grant of uplink resources or shared channel data) and a responsive uplink communication (e.g., an uplink transmission using the granted uplink resources or feedback of successful reception of the shared channel data). In cases where a UE or base station are capable of two or more timing configurations, a timing configuration for a transmission may be determined and the responsive uplink communication transmitted according to the determined timing configuration.

100. 发明申请

US20210127340A1 LOW LATENCY UPLINK POWER CONTROL 有权
公开(公告)号：US20210127340A1
公开(公告)日：2021-04-29
申请号：US17144748
申请日：2021-01-08
申请人： QUALCOMM Incorporated
发明人： Shimman Arvind Patel , Wanshi Chen , Peter Gaal , Hao Xu , Michael Mao Wang
IPC分类号： H04W52/34 , H04W52/36 , H04W72/04 , H04W52/14 , H04W52/16 , H04W28/06
摘要： Methods, systems, and devices for wireless communication are described. A user equipment (UE) may determine separate uplink (UL) power limitations for multiple transmission time interval (TTI) durations based on distinct power control parameters. In some cases, an adjustment factor or a power backoff may be applied to communications using one TTI duration to ensure that total transmit power does not exceed a threshold. The UE and the serving base station may also identify one or more demodulation reference signal (DMRS) windows. UL data transmissions may be demodulated based on a DMRS sent during the same window. Transmit power control (TPC) commands may be applied at the beginning of each window. However, if an UL transmission is scheduled at the beginning of the window, the UE may wait until a DMRS transmission or until no more transmissions are scheduled for the window before applying the TPC adjustment.

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