公开(公告)号：PH12017501564A1

公开(公告)日：2018-02-05

申请号：PH12017501564

申请日：2017-08-31

Applicant: QUALCOMM INC

Inventor： BHARADWAJ ARJUN ,  KIM YOUHAN ,  PATI VISHVABHUSAN ,  TIAN BIN ,  VERMANI SAMEER

IPC: H04L1/00 ,  H04L1/16 ,  H04W74/08 ,  H04W84/12

Abstract: A wireless device may selectively add padding to an end of a data transmission in order to provide adequate time for a receiving device to process the transmitted data and transmit feedback related to the transmitted data. A wireless device may identify a total amount of data capable of being transmitted in a transmission, and determine a number of data bits to be transmitted in the transmission. An amount of padding may be selected based on a proportion of the total amount of data capable of being transmitted and the number of data bits. In some examples, a preamble for a feedback transmission may be transmitted concurrently with processing of the received transmission.

公开(公告)号：CO2017010125A2

公开(公告)日：2018-01-05

申请号：CO2017010125

申请日：2017-10-05

Applicant: QUALCOMM INC

Inventor： TIAN BIN ,  VERMANI SAMEER ,  BHARADWAJ ARJUN ,  KIM YOUHAN ,  PATI VISHVABHUSAN

IPC: H04L1/00 ,  H04L1/16 ,  H04W74/08 ,  H04W84/12

Abstract: RESUMEN Se describe un dispositivo inalámbrico que puede añadir selectivamente relleno al final de una transmisión de datos a fin de proporcionar un tiempo adecuado para que un dispositivo de recepción procese los datos transmitidos y transmita una retroalimentación relacionada con los datos transmitidos. Un dispositivo inalámbrico puede identificar una cantidad total de datos capaces de ser transmitidos en una transmisión, y determinar un número de bits de datos a transmitirse en la transmisión. Una cantidad de relleno puede seleccionarse con base en una proporción de la cantidad total de datos capaces de ser transmitidos y el número de bits de datos. En algunos ejemplos, puede transmitirse un preámbulo para una transmisión de retroalimentación simultáneamente con el procesamiento de la transmisión recibida.

公开(公告)号：AU2015364393A1

公开(公告)日：2017-05-25

申请号：AU2015364393

申请日：2015-12-18

Applicant: QUALCOMM INC

Inventor： MERLIN SIMONE ,  TIAN BIN ,  KIM YOUHAN ,  CHERIAN GEORGE

IPC: H04L1/00 ,  H04L1/16 ,  H04W74/08 ,  H04W84/12

Abstract: Certain aspects of the present disclosure provide methods and apparatus for enabling an immediate response. In this manner, issues can be avoided where data carried by the last symbol of a frame cannot be entirely decoded by a receiver within a deadline for generating an immediate response. One example method for wireless communications by a first apparatus generally includes determining at least one constraint for communicating with a second apparatus; generating a frame that solicits a response; and outputting the frame for transmission to the second apparatus, wherein at least a last symbol of the frame is transmitted in a manner determined by the constraint to allow the second apparatus to transmit the response within a determined period.

公开(公告)号：AU2015318304A1

公开(公告)日：2017-03-02

申请号：AU2015318304

申请日：2015-08-28

Applicant: QUALCOMM INC

Inventor： ZHANG XIAOXIN ,  ZHANG NING ,  ALDANA CARLOS HORACIO ,  KIM YOUHAN ,  DUA PRAVEEN ,  AGRAWAL MEGHNA

IPC: H04W24/00 ,  H04W64/00

Abstract: A ranging operation between a first wireless device D1 and a second wireless D2 is performed by: sending (504), to the second wireless device, a data frame including a request for the second wireless device to report its actual SIFS duration to the first wireless device; determining (505) a time of departure (TOD) of the data frame; receiving (516), from the second wireless device, a response frame including SIFS information indicative of the actual SIFS duration of the second wireless device; determining (518) a time of arrival (TOA) of the response frame; and determining (522) a round trip time (RTT) of the data frame and the response frame using the TOD of the data frame, the TOA of the response frame, and the actual SIFS duration of the second wireless device. 501). Device D2 determines (508) the TOA of the received frame by capturing a time stamp, creates a response frame and determines (510) the TOD of the response frame, determines (512) ist actual SIFS duration, and embeds (514) the SIFS information into the response frame. The response frame is preferably an acknowledgement frame (ACK). Wireless devices D1 and D2 preferably include an SIFS database that stores a number of previously determined SIFS durations for the wireless device, one or more median SIFS durations for wireless device, and/or whether other wireless devices support ranging operations in accordance with the example embodiments. The exchange of ranging capabilities informs each of wireless devices D1 and D2 whether the other one supports capturing timestamps and/or is able to determine its own SIFS duration. In this manner, the ranging operations may be performed without estimating the SIFS duration of the second wireless device, thereby eliminating ranging errors resulting from uncertainties in the SIFS duration of the second wireless device.

公开(公告)号：PH12014502434B1

公开(公告)日：2015-01-12

申请号：PH12014502434

申请日：2014-10-30

Applicant: QUALCOMM INC

Inventor： YANG LIN ,  KIM YOUHAN ,  VERMANI SAMEER ,  YUCEK TEVFIK ,  SAMPATH HEMANTH

IPC: H04L5/00 ,  H04W52/14 ,  H04W52/24

Abstract: Systems, methods, and devices for wireless communication are provided. In one aspect, an apparatus for wireless communication is provided. The apparatus includes a processor configured to generate a packet for transmission via a wireless signal. The packet is generated for transmission over a bandwidth of 1 MHz using at least one orthogonal frequency-division multiplexing (OFDM) symbol. The apparatus further includes a transmitter configured to transmit the packet via the wireless signal having a power spectral density. The power spectral density within +0.45 MHz of a center frequency of the wireless signal is at a first power spectral density level. The power spectral density between 0.45 MHz and 0.55 MHz from the center frequency of the wireless signal and between -0.45 MHz and -0.55 MHz from the center frequency of the wireless signal is less than the first power spectral density level. The power spectral density between 0.55 MHz and 1 MHz from the center frequency of the wireless signal and between -0.55 MHz and -1 Mhz from the center frequency of the wireless signal is less than -20 dBr with respect to the first power spectral density level. The power spectral density between 1 MHz and 1.5 MHz from the center frequency of the wireless signal and between -1 MHz and -1.5 MHz from the center frequency of the wireless signal is less than -28 dBr with respect to the first power spectral density level. The power spectral density is greater than +1.5 MHz from the center frequency of the wireless signal is less than -40 dBr with respect to the first power spectral density level.

公开(公告)号：CA2869327A1

公开(公告)日：2013-11-14

申请号：CA2869327

申请日：2013-05-07

Applicant: QUALCOMM INC

Inventor： YANG LIN ,  KIM YOUHAN ,  VERMANI SAMEER ,  YUCEK TEVFIK ,  SAMPATH HEMANTH

IPC: H04W52/14 ,  H04L5/00 ,  H04W52/24

Abstract: Apparatuses for wireless communication are provided. The apparatus includes a processor configured to generate a packet for transmission via a wireless signal. The packet is generated for transmission over a bandwidth of 1 MHz using at least one orthogonal frequency-division multiplexing (OFDM) symbol comprising 32 subcarriers described by indices from -16 to 15, wherein each of the 32 subcarriers has an average constellaton enrgy. The apparatus further includes a transmitter configured to transmit the packet via the wireless signal such that each average constellation energy for subcarries having indices of -8 to -1 and 1 to 8 deviates no more than +-4 dB from an overall average of the average constellation energies over subcarriers having indices of -8 to -1 and 1 to 8, and each average constellation energy for subcarries having indices of -13 to -9 and 9 to 13 deviates no more than +4/-6 dB from the overall average.

公开(公告)号：EP2622745A4

公开(公告)日：2018-01-10

申请号：EP11831297

申请日：2011-09-27

Applicant: QUALCOMM INC

Inventor： KIM YOUHAN ,  ZHANG NING ,  CHEN CHIN-HUNG

IPC: H04L5/00 ,  H04L1/00 ,  H04L1/06 ,  H04L27/26 ,  H04W72/04

CPC classification number: H04B7/0456 ,  H03M13/6312 ,  H04B7/0413 ,  H04L1/0071 ,  H04L1/0606 ,  H04L5/0023 ,  H04L5/0046 ,  H04L5/0064 ,  H04L27/2626 ,  H04L27/2647

Abstract: A wireless transmitter can include a plurality of bandwidth modules, each bandwidth module processing data based on a predetermined frequency band. In one embodiment, such a wireless transmitter can include encoding components for receiving transmit data and generating encoded data. A multiple-input multiple-output (MIMO) stream parser can receive the encoded data and generate a plurality of MIMO streams. A first module parser coupled to a first MIMO stream can generate a first plurality of partial MIMO streams. A first bandwidth module can include a first interleaver that interleaves bits of the first partial MIMO stream and generates first interleaved data. A second bandwidth module can include a second interleaver that interleaves bits of the second partial MIMO stream and generates second interleaved data. A first inverse fast Fourier transform (IFFT) unit can combine and process the first and second interleaved data and generate a first transmission MIMO stream.

公开(公告)号：EP2617146A4

公开(公告)日：2017-01-25

申请号：EP11826023

申请日：2011-09-16

Applicant: QUALCOMM INC

Inventor： KIM YOUHAN ,  CHO JAMES ,  SHI KAI ,  ZHANG NING

IPC: H04W72/04 ,  H04W84/12

CPC classification number: H04W72/0453 ,  H04L1/0643 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0053

Abstract: A first combination of frequency bands is selected for transmitting a first data packet, and a second, different combination of frequency bands is selected for transmitting a second data packet. A data stream is divided into a first set of data and a second set of data. The first set of data is allocated to the first combination of frequency bands, and the second set of data is allocated to the second combination of frequency bands.

Abstract translation: 选择频带的第一组合用于发送第一数据分组，并且选择频带的第二不同组合来发送第二数据分组。 数据流被分成第一组数据和第二组数据。 第一组数据被分配给频带的第一组合，并且第二组数据被分配给频带的第二组合。

公开(公告)号：WO2016164517A3

公开(公告)日：2016-11-24

申请号：PCT/US2016026332

申请日：2016-04-07

Applicant: QUALCOMM INC

Inventor： BHARADWAJ ARJUN ,  KIM YOUHAN ,  PATI VISHVABHUSAN ,  TIAN BIN ,  VERMANI SAMEER

IPC: H04L1/00 ,  H04L1/16 ,  H04W74/08 ,  H04W84/12

CPC classification number: H04W28/06 ,  H04L1/0042 ,  H04L1/1685

Abstract: A wireless device may selectively add padding to an end of a data transmission in order to provide adequate time for a receiving device to process the transmitted data and transmit feedback related to the transmitted data. A wireless device may identify a total amount of data capable of being transmitted in a transmission, and determine a number of data bits to be transmitted in the transmission. An amount of padding may be selected based on a proportion of the total amount of data capable of being transmitted and the number of data bits. In some examples, a preamble for a feedback transmission may be transmitted concurrently with processing of the received transmission.

Abstract translation: 无线设备可以选择性地将填充添加到数据传输的结尾，以便为接收设备提供足够的时间来处理所发送的数据并发送与所发送的数据相关的反馈。 无线设备可以识别能够在传输中发送的数据的总量，并且确定要在传输中传输的数据位的数量。 可以基于能够发送的数据的总量的比例和数据比特的数量来选择填充量。 在一些示例中，用于反馈传输的前导码可以与所接收的传输的处理同时发送。

公开(公告)号：WO2013151847A3

公开(公告)日：2013-11-28

申请号：PCT/US2013034186

申请日：2013-03-27

Applicant: QUALCOMM INC

Inventor： KIM YOUHAN ,  CHADD ADRIAN H ,  GREEN MICHAEL R ,  ZHANG NING ,  JONES VINCENT K IV

IPC: H04W72/04 ,  H04L5/00 ,  H04W48/12 ,  H04W72/02 ,  H04W72/08 ,  H04W88/10

CPC classification number: H04W88/06 ,  H04L5/001 ,  H04L5/0044 ,  H04L5/0064 ,  H04W48/12 ,  H04W72/048 ,  H04W76/025 ,  H04W88/08 ,  H04W88/10

Abstract: A wireless device may be configured to operate in one of two modes where each mode uses a different channel list to perform operations in accordance with the IEEE 802.11 standard. In a first mode, the wireless device operates as an access point that sets up channels using one channel list in order to facilitate communications within a basic service set (BSS). In a second mode, the wireless device uses a second channel list to operate as a station and scan for a BSS. The first channel list contains a subset of the channels contained in the second channel list. The channels in each respective channel list may be reconfigured to adapt to changes in the configuration of a BSS and the devices communicating therein.

Abstract translation: 无线设备可以被配置为以两种模式之一操作，其中每个模式使用不同的频道列表来执行根据IEEE 802.11标准的操作。 在第一模式中，无线设备作为接入点进行操作，该接入点使用一个信道列表建立信道，以促进基本业务集（BSS）内的通信。 在第二模式中，无线设备使用第二频道列表作为站并且扫描BSS。 第一频道列表包含第二频道列表中包含的频道的子集。 可以重新配置每个相应频道列表中的频道以适应BSS及其中通信的设备的配置的变化。