公开(公告)号：US11632273B1

公开(公告)日：2023-04-18

申请号：US17457402

申请日：2021-12-02

Applicant: QUALCOMM Incorporated

Inventor： Meriam Rezk ,  Deniz Rende ,  Kapil Rai ,  Chin-Hung Chen

IPC: H04L1/02 ,  H04L25/02 ,  H04B7/0452 ,  H04B7/0426 ,  H04L1/00

Abstract: This disclosure provides methods, devices and systems for determining unavailable spatial streams in uplink multiuser (MU) multiple-in multiple-out (MIMO) communication. In one example, a device transmits, to wireless stations including a first wireless station, a trigger frame configured to elicit a joint transmission, to the device, of a MU packet over spatial streams respectively associated with the wireless stations. The device receives the MU packet over the spatial streams, where each spatial stream of the spatial streams is received by receive chains of the device. The device performs a channel estimation associated with each spatial stream of the spatial streams using each receive chain of the receive chains. The device determines that at least one spatial stream associated with the first wireless station is unavailable based on the channel estimation. The device processes the MU packet from the plurality of spatial streams without the at least one spatial stream.

公开(公告)号：US20170093626A1

公开(公告)日：2017-03-30

申请号：US14864375

申请日：2015-09-24

Applicant: QUALCOMM Incorporated

Inventor： Hassan Kaywan Afkhami ,  Purva Rameshchandra Rajkotia ,  Lawrence Winston Yonge, III ,  Deniz Rende

IPC: H04L12/24 ,  H04B3/54

CPC classification number: H04L41/0816 ,  H04B1/0067 ,  H04B3/542 ,  H04L69/18 ,  H04W48/18 ,  H04W52/0216 ,  H04W52/0225 ,  H04W72/1215 ,  H04W74/04 ,  H04W80/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/40

Abstract: A network device may be configured for communication over multiple communication networks. In one example, a method for using a network device to communicate over multiple networks is disclosed. The method includes receiving a packet from a combined communication interface and determining that the packet is formatted according to a first communication protocol. In response to determining that the packet is formatted according to the first communication protocol, the method includes enabling a first component in a first digital signal processor (DSP) block of the network device to process the packet according to the first communication protocol, and disabling a second component of the first DSP block, wherein the second component is configured to process the packet according to a second communication protocol.

公开(公告)号：US20170033846A1

公开(公告)日：2017-02-02

申请号：US14810194

申请日：2015-07-27

Applicant: QUALCOMM Incorporated

Inventor： Deniz Rende ,  Lawrence Winston Yonge, III ,  Arun Avudainayagam ,  Hassan Kaywan Afkhami

IPC: H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04L5/00

CPC classification number: H04B7/0413 ,  H04B3/542 ,  H04B7/043 ,  H04B7/0617 ,  H04B7/0697 ,  H04B7/08 ,  H04B2203/5425 ,  H04L5/0048 ,  H04L5/006

Abstract: A method for determining transmission properties of a multiple-input multiple-output (MIMO) channel. In one embodiment, a MIMO receiver receives a non-beamformed, spatial-multiplexed (SM) sounding signal over multiple signal paths of the MIMO channel. The receiver determines beamforming information including beamforming coefficients and beamforming Eigenvalues for the MIMO channel based, at least in part, on frequency responses of the signal paths. The receiver determines a first signal-to-noise ratio (SNR) estimate for one or more SM data streams of the SM sounding signal based, at least in part, on the determined beamforming information.

Abstract translation: 一种用于确定多输入多输出（MIMO）信道的传输特性的方法。 在一个实施例中，MIMO接收机在MIMO信道的多个信号路径上接收非波束形成的空间复用（SM）探测信号。 至少部分地基于信号路径的频率响应，接收机确定包括用于MIMO信道的波束成形系数和波束成形特征值的波束形成信息。 所述接收机至少部分地基于所确定的波束形成信息来确定所述SM探测信号的一个或多个SM数据流的第一信噪比（SNR）估计。

公开(公告)号：US20150103751A1

公开(公告)日：2015-04-16

申请号：US14052130

申请日：2013-10-11

Applicant: QUALCOMM Incorporated

Inventor： Hassan Kaywan Afkhami ,  Deniz Rende ,  Purva Rameshchandra Rajkotia

IPC: H04W52/30

CPC classification number: H04B3/54 ,  H04B2203/5425 ,  H04L5/0046 ,  H04L25/03834 ,  H04L27/2646

Abstract: This disclosure provides several mechanisms for adapting transmit power spectral density (PSD). A communications device may adapt the power spectrum utilized at the transmitter based, at least in part, on the channel conditions or PSD constraints associated with the communications medium between the transmitter and a receiver device. Additionally, the transmit PSD may be adapted based, at least in part, on a total power capability associated with a transmitter. Power is allocated to improve throughput and utilization of the communications channel. A transmission profile may be selected based, at least in part, on the notch depth. The transmission profile may be associated with symbol timing parameters. The communications device may maintain a plurality of selectable pulse shapes that are optimized for different notch depths.

Abstract translation: 本公开提供了用于调整发射功率谱密度（PSD）的几种机制。 至少部分地，通信设备可以使用在发射机处使用的功率谱适应与发射机和接收机设备之间的通信介质相关联的信道条件或PSD约束。 另外，传输PSD可以至少部分地基于与发射机相关联的总功率能力来适配。 分配功率以提高通信信道的吞吐量和利用率。 可以至少部分地基于凹口深度来选择透射轮廓。 传输简档可以与符号定时参数相关联。 通信设备可以保持针对不同陷波深度而优化的多个可选脉冲形状。

公开(公告)号：US20180227108A1

公开(公告)日：2018-08-09

申请号：US15424567

申请日：2017-02-03

Applicant: QUALCOMM Incorporated

Inventor： Hao Zhu ,  Srinivas Katar ,  Xiaolong Huang ,  Chao Zou ,  Deniz Rende

IPC: H04L5/00

CPC classification number: H04B17/373 ,  H04B17/309 ,  H04B17/336 ,  H04L1/0002 ,  H04L1/0015 ,  H04L27/2601

Abstract: A method includes determining, based on a first packet error rate (PER) associated with a first communication data rate of data sent from a first electronic device to a second electronic device, a predicted second PER associated with a second communication data rate by increasing a value of the predicted second PER based on a first signal-to-noise ratio (SNR) sensitivity associated with the first communication data rate being less than a second SNR sensitivity associated with the second communication data rate or by decreasing the value of the predicted second PER based on the first SNR sensitivity being greater than the second SNR sensitivity. The method further includes selecting a communication data rate for communication from the first electronic device to the second electronic device based at least in part on the first PER and the predicted second PER.

公开(公告)号：US09847909B2

公开(公告)日：2017-12-19

申请号：US14864375

申请日：2015-09-24

Applicant: QUALCOMM Incorporated

Inventor： Hassan Kaywan Afkhami ,  Purva Rameshchandra Rajkotia ,  Lawrence Winston Yonge, III ,  Deniz Rende

IPC: H04W74/08 ,  H04L12/24 ,  H04B3/54 ,  H04B1/00 ,  H04W80/00 ,  H04L29/06 ,  H04W48/18 ,  H04W52/02 ,  H04W74/04

CPC classification number: H04L41/0816 ,  H04B1/0067 ,  H04B3/542 ,  H04L69/18 ,  H04W48/18 ,  H04W52/0216 ,  H04W52/0225 ,  H04W72/1215 ,  H04W74/04 ,  H04W80/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/40

Abstract: A network device may be configured for communication over multiple communication networks. In one example, a method for using a network device to communicate over multiple networks is disclosed. The method includes receiving a packet from a combined communication interface and determining that the packet is formatted according to a first communication protocol. In response to determining that the packet is formatted according to the first communication protocol, the method includes enabling a first component in a first digital signal processor (DSP) block of the network device to process the packet according to the first communication protocol, and disabling a second component of the first DSP block, wherein the second component is configured to process the packet according to a second communication protocol.

公开(公告)号：US20160337224A1

公开(公告)日：2016-11-17

申请号：US14709038

申请日：2015-05-11

Applicant: QUALCOMM Incorporated

Inventor： Hassan Kaywan Afkhami ,  Purva Rameshchandra Rajkotia ,  Deniz Rende

IPC: H04L12/26 ,  H04B17/318

CPC classification number: H04L43/10 ,  H04B3/54 ,  H04B17/318 ,  H04B2203/5425 ,  H04B2203/5441 ,  H04L43/16

Abstract: A dual channel transmitter and a dual channel receiver are disclosed. The dual channel transmitter may determine to transmit an information signal to a network device and the dual channel receiver may determine to receive an information signal at the network device on either or both a wireless channel and a wireline channel. A guard interval controller may select a guard interval based at least in part on a determination of whether the information signal is to be transmitted or received on either or both the wireless channel and the wireline channel.

Abstract translation: 公开了一种双通道发射机和双通道接收机。 双信道发射机可以确定将信息信号发送到网络设备，并且双信道接收机可以确定在无线信道和有线信道上的任一个或两者上在网络设备处接收信息信号。 保护间隔控制器可以至少部分地基于在无线信道和有线信道中的任一个或两者上发送或接收信息信号的确定来选择保护间隔。

公开(公告)号：US09325522B2

公开(公告)日：2016-04-26

申请号：US14305964

申请日：2014-06-16

Applicant: QUALCOMM Incorporated

Inventor： Hassan Kaywan Afkhami ,  Purva Rameshchandra Rajkotia ,  Deniz Rende

IPC: H04L12/46 ,  H04L1/00

CPC classification number: H04B3/542 ,  H04B3/32 ,  H04B3/46 ,  H04B3/487 ,  H04B3/54 ,  H04B2203/5425 ,  H04L1/0021 ,  H04L1/0026 ,  H04L12/4625 ,  H04M3/2254

Abstract: Methods, systems, and devices are described for minimizing mutual interference between networks that implement different protocols. In one embodiment, a first network device of a first network may exchange coexistence information with a second network device of a second network to determine whether to share resources or reduce transmit power based, at least in part, on the interference detected at the first network device from a transmission of the second network device. In one embodiment, both the first and the second network devices may independently and iteratively reduce their respective transmit power to minimize interference between the interfering networks. The first network device may reduce its transmit power based on an interference of the second network device and vice versa. In another embodiment, the network device with a lower priority may minimize its transmit power to reduce interference with the network device with a higher priority.

Abstract translation: 描述了用于最小化实现不同协议的网络之间的相互干扰的方法，系统和设备。 在一个实施例中，第一网络的第一网络设备可以与第二网络的第二网络设备交换共存信息，以至少部分地基于在第一网络处检测到的干扰来确定是共享资源还是降低发射功率 设备从第二网络设备的传输。 在一个实施例中，第一和第二网络设备可以独立地并且迭代地减少它们各自的发射功率以最小化干扰网络之间的干扰。 第一网络设备可以基于第二网络设备的干扰降低其发射功率，反之亦然。 在另一个实施例中，具有较低优先级的网络设备可以将其发射功率最小化，以减少具有较高优先级的对网络设备的干扰。

公开(公告)号：US09537673B2

公开(公告)日：2017-01-03

申请号：US15077658

申请日：2016-03-22

Applicant: QUALCOMM Incorporated

Inventor： Hassan Kaywan Afkhami ,  Purva Rameshchandra Rajkotia ,  Deniz Rende

IPC: H04L12/46 ,  H04B3/54 ,  H04L1/00 ,  H04B3/46 ,  H04M3/22 ,  H04B3/32 ,  H04B3/487

CPC classification number: H04B3/542 ,  H04B3/32 ,  H04B3/46 ,  H04B3/487 ,  H04B3/54 ,  H04B2203/5425 ,  H04L1/0021 ,  H04L1/0026 ,  H04L12/4625 ,  H04M3/2254

Abstract: Methods, systems, and devices are described for minimizing mutual interference between networks that implement different protocols. In one embodiment, a first network device of a first network may exchange coexistence information with a second network device of a second network to determine whether to share resources or reduce transmit power based, at least in part, on the interference detected at the first network device from a transmission of the second network device. In one embodiment, both the first and the second network devices may independently and iteratively reduce their respective transmit power to minimize interference between the interfering networks. The first network device may reduce its transmit power based on an interference of the second network device and vice versa. In another embodiment, the network device with a lower priority may minimize its transmit power to reduce interference with the network device with a higher priority.

Abstract translation: 描述了用于最小化实现不同协议的网络之间的相互干扰的方法，系统和设备。 在一个实施例中，第一网络的第一网络设备可以与第二网络的第二网络设备交换共存信息，以至少部分地基于在第一网络处检测到的干扰来确定是共享资源还是降低发射功率 设备从第二网络设备的传输。 在一个实施例中，第一和第二网络设备可以独立地并且迭代地减少它们各自的发射功率以最小化干扰网络之间的干扰。 第一网络设备可以基于第二网络设备的干扰降低其发射功率，反之亦然。 在另一个实施例中，具有较低优先级的网络设备可以将其发射功率最小化，以减少具有较高优先级的对网络设备的干扰。

公开(公告)号：US20150365256A1

公开(公告)日：2015-12-17

申请号：US14305964

申请日：2014-06-16

Applicant: QUALCOMM Incorporated

Inventor： Hassan Kaywan Afkhami ,  Purva Rameshchandra Rajkotia ,  Deniz Rende

IPC: H04L12/46 ,  H04L1/00

CPC classification number: H04B3/542 ,  H04B3/32 ,  H04B3/46 ,  H04B3/487 ,  H04B3/54 ,  H04B2203/5425 ,  H04L1/0021 ,  H04L1/0026 ,  H04L12/4625 ,  H04M3/2254

Abstract: Methods, systems, and devices are described for minimizing mutual interference between networks that implement different protocols. In one embodiment, a first network device of a first network may exchange coexistence information with a second network device of a second network to determine whether to share resources or reduce transmit power based, at least in part, on the interference detected at the first network device from a transmission of the second network device. In one embodiment, both the first and the second network devices may independently and iteratively reduce their respective transmit power to minimize interference between the interfering networks. The first network device may reduce its transmit power based on an interference of the second network device and vice versa. In another embodiment, the network device with a lower priority may minimize its transmit power to reduce interference with the network device with a higher priority.

Abstract translation: 描述了用于最小化实现不同协议的网络之间的相互干扰的方法，系统和设备。 在一个实施例中，第一网络的第一网络设备可以与第二网络的第二网络设备交换共存信息，以至少部分地基于在第一网络处检测到的干扰来确定是共享资源还是降低发射功率 设备从第二网络设备的传输。 在一个实施例中，第一和第二网络设备可以独立地并且迭代地减少它们各自的发射功率以最小化干扰网络之间的干扰。 第一网络设备可以基于第二网络设备的干扰降低其发射功率，反之亦然。 在另一个实施例中，具有较低优先级的网络设备可以将其发射功率最小化，以减少具有较高优先级的对网络设备的干扰。