公开(公告)号：US20160095120A1

公开(公告)日：2016-03-31

申请号：US14865640

申请日：2015-09-25

Applicant: QUALCOMM Incorporated

Inventor： Peter Gaal ,  Srinivas Yerramalli ,  Durga Prasad Malladi ,  Naga Bhushan ,  Yongbin Wei ,  Tao Luo ,  Hao Xu ,  Wanshi Chen ,  Shimman Arvind Patel ,  Aleksandar Damnjanovic ,  Xiaoxia Zhang

IPC: H04W72/04 ,  H04W16/14 ,  H04W40/24 ,  H04L5/00

CPC classification number: H04W72/0453 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0053 ,  H04W16/14 ,  H04W40/244 ,  H04W72/0406 ,  H04W74/0816 ,  H04W88/02 ,  H04W88/08

Abstract: Techniques are described for wireless communication. A first method includes winning a contention for access to an unlicensed radio frequency spectrum band, and transmitting at least a portion of a channel usage beacon signal (CUBS) over the unlicensed radio frequency spectrum band. The at least portion of the CUBS is transmitted in a number of frequency interlaces of the unlicensed radio frequency spectrum band. A second method includes winning a contention for access to an unlicensed radio frequency spectrum band; determining whether the contention is won within a threshold time before a next symbol period boundary; and transmitting at least a portion of a CUBS over the unlicensed radio frequency spectrum band. The at least portion of the CUBS is transmitted during a preamble including a fractional period of a first symbol period. The at least portion of the CUBS may be based at least in part on the determining.

Abstract translation: 技术描述为无线通信。 第一种方法包括获得对未经许可的射频频带的访问的争用，以及通过未许可的射频频带发送信道使用信标信号（CUBS）的至少一部分。 CUBS的至少一部分在非许可射频频带的多个频率交织中被发送。 第二种方法包括获得对未经许可的射频频带的访问的竞争; 确定在下一个符号周期边界之前的阈值时间内是否赢得争用; 以及在未经许可的射频频带上发送CUBS的至少一部分。 在包括第一符号周期的分数周期的前导码期间发送CUBS的至少一部分。 CUBS的至少部分可以至少部分地基于确定。

公开(公告)号：US20150148053A1

公开(公告)日：2015-05-28

申请号：US14552127

申请日：2014-11-24

Applicant: QUALCOMM INCORPORATED

Inventor： Shimman Arvind Patel ,  Tao Luo ,  Naga Bhushan ,  Peter Gaal ,  Hao Xu

IPC: H04W56/00 ,  H04W72/04

CPC classification number: H04W56/001 ,  H04W16/14 ,  H04W28/08 ,  H04W72/0426 ,  H04W72/0446 ,  H04W74/0808 ,  H04W84/042 ,  H04W88/08

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US12200731B2

公开(公告)日：2025-01-14

申请号：US18334597

申请日：2023-06-14

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Attia Abotabl ,  Huilin Xu ,  Muhammad Sayed Khairy Abdelghaffar ,  Shimman Arvind Patel ,  Wanshi Chen ,  Hwan Joon Kwon ,  Krishna Kiran Mukkavilli ,  Tingfang Ji ,  Abdelrahman Mohamed Ahmed Mohamed Ibrahim

IPC: H04W72/23 ,  H04L1/00 ,  H04L5/14 ,  H04W52/14 ,  H04W52/36 ,  H04W72/0453

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive downlink control information (DCI) that schedules an uplink communication in an uplink frequency band. The UE may transmit, at an uplink frequency within the uplink frequency band, the uplink communication with a power that varies over the uplink frequency band based at least in part on a location of the uplink frequency relative to a downlink frequency band associated with the UE. Numerous other aspects are provided.

公开(公告)号：US11962525B2

公开(公告)日：2024-04-16

申请号：US17099181

申请日：2020-11-16

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Shimman Arvind Patel ,  Yongbin Wei ,  Aleksandar Damnjanovic ,  Hao Xu

IPC: H04L5/00 ,  H04W72/00 ,  H04W24/08 ,  H04W88/02

CPC classification number: H04L5/0048 ,  H04L5/0053 ,  H04W24/08 ,  H04W72/00 ,  H04W88/02

Abstract: Control information may be transmitted for different TTI lengths. Different control information for the different TTIs may be transmitted using control channel resources that are established for communication of control information, such as a physical downlink control channel (PDCCH), for example. Control information for a first TTI may be located in a first set of resources, and control information for a second TTI may be located in a second set of resources. The first set of resources may be located within a first search space that may be searched by a user equipment (UE) to identify the first control information. The second set of resources may be located within a second search space that may be searched by the UE to identify the second control information.

公开(公告)号：US11743086B2

公开(公告)日：2023-08-29

申请号：US17306755

申请日：2021-05-03

Applicant: QUALCOMM Incorporated

Inventor： Saeid Sahraei ,  Gokul Sridharan ,  Hung Dinh Ly ,  June Namgoong ,  Krishna Kiran Mukkavilli ,  Naga Bhushan ,  Tingfang Ji ,  Peter Gaal ,  Taesang Yoo ,  Shimman Arvind Patel

IPC: H04L27/26 ,  H04W72/0453

CPC classification number: H04L27/2614 ,  H04W72/0453

Abstract: 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 a plurality of data tone locations and a plurality of PRT locations within a particular bandwidth, wherein a subset of PRT locations of the plurality of PRT locations are arranged relative to a subset of data tone locations of the plurality of data tone locations according to a PRT sequence corresponding to a set of allocated frequency resources; and transmit a data transmission using a waveform based at least in part on the resource allocation. Numerous other aspects are provided.

公开(公告)号：US11622351B2

公开(公告)日：2023-04-04

申请号：US17210462

申请日：2021-03-23

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Attia Abotabl ,  Wanshi Chen ,  Muhammad Sayed Khairy Abdelghaffar ,  Huilin Xu ,  Shimman Arvind Patel ,  Krishna Kiran Mukkavilli ,  Tingfang Ji

IPC: H04W72/04 ,  H04W72/0453 ,  H04L5/14

Abstract: 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.

公开(公告)号：US11611422B2

公开(公告)日：2023-03-21

申请号：US17086368

申请日：2020-10-31

Applicant: QUALCOMM Incorporated

Inventor： 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: H04B7/06 ,  H04L5/14 ,  H04B7/08 ,  H04W88/08 ,  H04L49/25

Abstract: 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.

公开(公告)号：US11497007B2

公开(公告)日：2022-11-08

申请号：US15969586

申请日：2018-05-02

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Wanshi Chen ,  Shimman Arvind Patel ,  Peter Gaal

IPC: H04W72/02 ,  H04W72/04 ,  H04W52/32 ,  H04L5/00 ,  H04W52/14 ,  H04L25/02 ,  H04W52/10 ,  H04W52/36

Abstract: 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.

公开(公告)号：US11329853B2

公开(公告)日：2022-05-10

申请号：US17306762

申请日：2021-05-03

Applicant: QUALCOMM Incorporated

Inventor： Saeid Sahraei ,  Gokul Sridharan ,  Hung Dinh Ly ,  June Namgoong ,  Krishna Kiran Mukkavilli ,  Naga Bhushan ,  Tingfang Ji ,  Peter Gaal ,  Taesang Yoo ,  Shimman Arvind Patel

IPC: H04L27/26

Abstract: 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.

公开(公告)号：US20210344543A1

公开(公告)日：2021-11-04

申请号：US17241393

申请日：2021-04-27

Applicant: QUALCOMM Incorporated

Inventor： Saeid Sahraei ,  June Namgoong ,  Krishna Kiran Mukkavilli ,  Naga Bhushan ,  Tingfang Ji ,  Peter Gaal ,  Taesang Yoo ,  Gokul Sridharan ,  Shimman Arvind Patel

IPC: H04L27/26 ,  H04W72/04

Abstract: 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).