Wireless vehicular communications with channel allocation involving different protocols

    公开(公告)号:US11240814B2

    公开(公告)日:2022-02-01

    申请号:US16711707

    申请日:2019-12-12

    Applicant: NXP B.V.

    Abstract: Aspects of the present disclosure are directed to methods and/or apparatuses involving stations (102, 104, 105) participating in wireless station-to-station communications in which each of a plurality of stations shares a wireless communications channel (101). Information is collected wirelessly (102) from transmissions associated with a first communication protocol and from transmissions associated with a second communication protocol. A current communication environment is dynamically discerned therefrom (102), and used to characterize a dynamic relationship of the collected information, which is indicative of respective usage of the wireless communication channel by data transmitted via the respective protocols. Usage of the channel is allocated (102) for respective communications that use the first and second communication protocols based on the dynamic relationship. Sets of data (110, 111, 120, 121, 122) are wirelessly transmitted via the first and second communication protocols over the channel, based on the allocated usage.

    COMMUNICATIONS WITH UTILIZATION OF CURRENT

    公开(公告)号:US20210281377A1

    公开(公告)日:2021-09-09

    申请号:US17188607

    申请日:2021-03-01

    Applicant: NXP B.V.

    Abstract: Aspects of the present disclosure are directed to wireless communications involving successively-received messages. As may be implemented consistent with one or more aspects characterized herein, a preamble section (122) of a currently-received message (120) is used in decoding a previously-received message (110), for wireless transmissions from a wireless transmitter (102) on a wireless communications channel (101). The current and previous message are received in succession with a time gap (130) therebetween.

    Apparatus and methods for synchronization of transmitters

    公开(公告)号:US10985805B2

    公开(公告)日:2021-04-20

    申请号:US16400288

    申请日:2019-05-01

    Applicant: NXP B.V.

    Abstract: A first-transceiver for use in an antenna diversity scheme. The first-transceiver comprises a first-time/clock-generation-unit; a first-receiver; and a first-transmitter. The first-receiver is configured to receive a wireless second-alignment-signal from a second-transceiver with a second-time/clock-generation-unit. The wireless second-alignment-signal is representative of a state of the second-time/clock-generation-unit. The first-transceiver is configured to set the first-time/clock-generation-unit, based on the wireless second-alignment-signal, to reduce an alignment-error between the first-time/clock-generation-unit and the second-time/clock-generation-unit. The first-transmitter is configured to transmit a wireless first-transmission-signal, in accordance with the first-time/clock-generation-unit, as part of the antenna diversity scheme. The first-transmission-signal corresponds to a second-transmission-signal that is transmitted by the second-transceiver. The antenna diversity scheme comprises aligned transmission of both the first-transmission-signal and the second-transmission-signal.

    WIRELESS VEHICULAR COMMUNICATIONS WITH CHANNEL ALLOCATION

    公开(公告)号:US20200296709A1

    公开(公告)日:2020-09-17

    申请号:US16711707

    申请日:2019-12-12

    Applicant: NXP B.V.

    Abstract: Aspects of the present disclosure are directed to methods and/or apparatuses involving stations (102, 104, 105) participating in wireless station-to-station communications in which each of a plurality of stations shares a wireless communications channel (101), Information is collected wirelessly (102) from transmissions associated with a first communication protocol and from transmissions associated with a second communication protocol. A current communication environment is dynamically discerned therefrom (102), and used to characterize a dynamic relationship of the collected information, which is indicative of respective usage of the wireless communication channel by data transmitted via the respective protocols. Usage of the channel is allocated (102) for respective communications that use the first and second communication protocols based on the dynamic relationship. Sets of data (110, 111, 120, 121, 122) are wirelessly transmitted via the first and second communication protocols over the channel, based on the allocated usage.

    MIMO radar system
    6.
    发明授权
    MIMO radar system 有权
    MIMO雷达系统

    公开(公告)号:US09541638B2

    公开(公告)日:2017-01-10

    申请号:US14538541

    申请日:2014-11-11

    Applicant: NXP B.V.

    Abstract: Various exemplary embodiments relate to a method for detecting an object using radar system having M transmit antennas, N receive antennas, and a processor, including: receiving, by the processor, N×M digital signals, wherein the N receivers receive M received signals corresponding to M sequences of encoded transmitted signals resulting in N×M digital signals; processing the N×M digital signals to produce N×M first range/relative velocity matrices; applying a phase compensation to N×(M−1) first range/relative velocity matrices to compensate for a difference in range between the N×(M−1) first range/relative velocity matrices and the Mth range/velocity matrix; decoding the M phase compensated range/relative velocity matrices for the N receivers using an inverse of the transmit encoding to produce M decoded phase range/relative velocity matrices for the N receivers; detecting objects using the M range/relative velocity matrices for the N receivers to produce a detection vector.

    Abstract translation: 各种示例性实施例涉及使用具有M个发射天线,N个接收天线和处理器的雷达系统来检测对象的方法,包括:由处理器接收N×M个数字信号,其中N个接收机接收对应于M个接收信号的M个接收信号 到编码的发送信号的M个序列,得到N×M个数字信号; 处理N×M数字信号以产生N×M个第一范围/相对速度矩阵; 对N×(M-1)个第一范围/相对速度矩阵施加相位补偿以补偿N×(M-1)个第一范围/相对速度矩阵与第M个范围/速度矩阵之间的范围差; 使用发射编码的逆来解码N个接收机的M相补偿范围/相对速度矩阵,以产生用于N个接收机的M个解码的相位范围/相对速度矩阵; 使用M个范围/相对速度矩阵来检测物体,以产生检测向量。

    Distributed radio system
    7.
    发明授权
    Distributed radio system 有权
    分布式无线电系统

    公开(公告)号:US09426842B2

    公开(公告)日:2016-08-23

    申请号:US14306676

    申请日:2014-06-17

    Applicant: NXP B.V.

    CPC classification number: H04W88/085 H04B7/08

    Abstract: A distributed radio system comprising a plurality of receivers (1,2,15), each receiver being adapted to receive radio signals and to transmit respective digital signals. The system further comprises a digital communication channel (3) coupled to the plurality of receivers (1,2,15) and adapted to receive the digital signals and to transmit the digital signals. The system comprises a base-band unit (4) coupled to the communication channel (3) and adapted to combine and process the digital signals, the digital signals comprising information available in each receiver (1,2,15) of the plurality of receivers for exploiting a diversity gain.

    Abstract translation: 一种包括多个接收机(1,2,15)的分布式无线电系统,每个接收机适于接收无线电信号并发送相应的数字信号。 该系统还包括耦合到多个接收器(1,2,15)的数字通信信道(3),并且适于接收数字信号并发送数字信号。 该系统包括耦合到通信信道(3)并且适于组合和处理数字信号的基带单元(4),数字信号包括多个接收机(1,2,15)中可用的信息 以利用多样化增益。

    Communications with utilization of current preamble for decoding previous message

    公开(公告)号:US12177153B2

    公开(公告)日:2024-12-24

    申请号:US17188607

    申请日:2021-03-01

    Applicant: NXP B.V.

    Abstract: Aspects of the present disclosure are directed to wireless communications involving successively-received messages. As may be implemented consistent with one or more aspects characterized herein, a preamble section (122) of a currently-received message (120) is used in decoding a previously-received message (110), for wireless transmissions from a wireless transmitter (102) on a wireless communications channel (101). The current and previous message are received in succession with a time gap (130) therebetween.

    RADAR PROCESSOR
    9.
    发明申请

    公开(公告)号:US20220187438A1

    公开(公告)日:2022-06-16

    申请号:US17451515

    申请日:2021-10-20

    Applicant: NXP B.V.

    Abstract: A radar processor for processing a frame of radar data received from one or more targets, the frame of radar data having a carrier frequency and comprising a sequence of codewords with a codeword repetition interval, wherein the carrier frequency and the codeword repetition interval define an unambiguous velocity range, the radar processor configured to: receive the frame of radar data; transform the frame to obtain a velocity data array; apply a correction algorithm to the velocity data array to correct a Doppler shift of the frame to obtain a corrected array, wherein the correction algorithm comprises a set of Doppler correction frequencies corresponding to a set of velocity gates and at least one of the set of Doppler correction frequencies corresponds to a velocity gate outside the unambiguous velocity range; and perform range processing on the corrected array to obtain a range-Doppler map.

    WIRELESS COMMUNICATION WITH REPETITION DETECTION

    公开(公告)号:US20210091889A1

    公开(公告)日:2021-03-25

    申请号:US17006998

    申请日:2020-08-31

    Applicant: NXP B.V.

    Abstract: Aspects of the present disclosure are directed to use with communications that may involve repetitive communications. As may be implemented in accordance with one or more embodiments, a subset of symbols in a current data message (130/131) are used with a corresponding subset of symbols in a previous data message (120/121), to ascertain whether the current data message is a repetition of the previous data message. This may involve, for instance, generating a resemblance metric to represent semblance between a subset the data symbols of the current data message and a subset the data symbols of the previous data message (102). The resemblance metric can be used in determining whether the current data message is a repetition of the previous data message. This approach may be useful, for example, in ascertaining whether the current message is a repetition without necessarily decoding the message.

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