TONE PLAN FOR LTF COMPRESSION AND TRANSMISSION IN WIRELESS COMMUNICATION SYSTEMS

    公开(公告)号:SG11201700474TA

    公开(公告)日:2017-03-30

    申请号:SG11201700474T

    申请日:2015-09-03

    Applicant: QUALCOMM INC

    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. In one aspect, an apparatus is configured to transmit user data in a first symbol of a first symbol type. The first symbol type has a first symbol duration, a first frequency bandwidth, and a first tone plan. The first tone plan includes a first valid start tone index, a first valid end tone index, and a first set of DC tones. The apparatus is further configured to transmit an LTF in a second symbol of a second symbol type. The second symbol type has a second symbol duration, a second frequency bandwidth, and a second tone plan. The second tone plan includes a second valid start tone index, a second valid end tone index, and a second set of DC tones.

    Per stream and per antenna cyclic shift delay in uplink multi-user mimo

    公开(公告)号:AU2015327996A1

    公开(公告)日:2017-03-09

    申请号:AU2015327996

    申请日:2015-10-01

    Applicant: QUALCOMM INC

    Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, an apparatus includes a processor configured to determine a first set of CSD values for transmitting a first set of information on a plurality of antennas, determine a second set of CSD values for transmitting a second set of information on the plurality of antennas, and transmit the first set of information based on the first set of CSD values and the second set of information based on the second set of CSD values.

    Frame structure for mixed-rate wireless communication networks

    公开(公告)号:AU2015318053A1

    公开(公告)日:2017-03-02

    申请号:AU2015318053

    申请日:2015-09-14

    Applicant: QUALCOMM INC

    Abstract: A method of wirelessly communicating a packet including a first portion for transmission over at least one channel of a first transmission type and a second portion for transmission over at least one channel of a second transmission type. In one aspect, the method includes generating, at a wireless device, a packet including a first portion having a first symbol duration. The packet further includes a second portion having a second symbol duration greater than the first. The second portion can include a plurality of repeated portions of the signal field, the repeated portions having the second symbol duration. The first portion includes a first training field. The method further includes prepending or appending a second training field to the first portion. The second training field has the second symbol duration. The method further includes transmitting the packet.

    APPARATUSES FOR WIRELESS COMMUNICATION IN SUB GIGAHERTZ BANDS ENSURING SPECTRAL FLATNESS

    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

    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.

    APPARATUSES FOR WIRELESS COMMUNICATION IN SUB GIGAHERTZ BANDS ENSURING SPECTRAL FLATNESS

    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

    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.

    LOGICAL TONE INDEX MAPPING FOR DISTRIBUTED TONE INDEX TRANSMISSION
    109.
    发明申请
    LOGICAL TONE INDEX MAPPING FOR DISTRIBUTED TONE INDEX TRANSMISSION 审中-公开
    用于分布式音调索引传输的逻辑音调索引映射

    公开(公告)号:WO2016044466A2

    公开(公告)日:2016-03-24

    申请号:PCT/US2015050498

    申请日:2015-09-16

    Applicant: QUALCOMM INC

    CPC classification number: H04W72/044 H04L5/0007 H04L5/0041 H04L5/0044

    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. In one aspect, an apparatus includes a processor configured to allocate a plurality of resource blocks for wireless communication. The processor is further configured to transmit data on a first resource block of the plurality of resource blocks, in which the first resource block is associated with a first set of tone indices and a second set of tone indices, and the first set of tone indices is a set of nominal tone indices that is logically mapped to a second set of tone indices that is a set of physical tone indices.

    Abstract translation: 提供了一种用于无线通信的方法,装置和计算机程序产品。 一方面,一种装置包括:处理器,被配置为分配用于无线通信的多个资源块。 处理器还被配置为在多个资源块的第一资源块上传送数据,其中第一资源块与第一组音调索引和第二组音调索引相关联,并且第一组音调索引 是一组标称色调索引,其被逻辑地映射到作为一组物理音调索引的第二组音调索引。

    METHOD AND APPARATUS FOR FACILITATING TRI-STATE DECODING ON A SHARED UPLINK CHANNEL
    110.
    发明申请
    METHOD AND APPARATUS FOR FACILITATING TRI-STATE DECODING ON A SHARED UPLINK CHANNEL 审中-公开
    用于在共享的上行链路信道上实现三态解码的方法和装置

    公开(公告)号:WO2011143595A8

    公开(公告)日:2012-05-31

    申请号:PCT/US2011036494

    申请日:2011-05-13

    CPC classification number: H04L1/1867 H04L1/0045 H04L1/1607

    Abstract: Methods, apparatuses, and computer program products are disclosed for facilitating decoding a communication received from a wireless terminal. Encoded bits are received from the wireless terminal via a shared uplink channel, and a plurality of acknowledgment tones are identified within the encoded bits. A correlation value is ascertained corresponding to a correlation between detected bits within the plurality of acknowledgment tones and valid bits corresponding to any of a plurality of valid acknowledgment codewords. A determination is then made as to whether the plurality of acknowledgment tones includes information corresponding to a discontinuous transmission by comparing the correlation value to a threshold value.

    Abstract translation: 公开了方法,装置和计算机程序产品,以便于对从无线终端接收的通信进行解码。 经由共享上行链路信道从无线终端接收编码比特,并且在编码比特内识别出多个确认音。 确定对应于多个确认音调中的检测到的比特与对应于多个有效确认码字中的任何一个的有效比特的相关性的相关值。 然后,通过将相关值与阈值相比较来确定多个确认音是否包括与不连续传输相对应的信息。

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