Regularly scheduled sessions in a cellular internet of things system

    公开(公告)号:US10660033B2

    公开(公告)日:2020-05-19

    申请号:US14511172

    申请日:2014-10-09

    Abstract: Methods, systems, and devices are described for wireless communication at a UE. A user equipment (UE) may perform an initial access procedure to establish a connection with a serving cell. The UE may then arrange a regular transmission schedule with the serving cell including a discontinuous transmission (DTX) cycle and an acknowledgement schedule. The UE may enter a low power mode and refrain from any transmission during the a sleep interval of the DTX cycle. The UE may then wake up and transmit a message to the serving cell after the sleep interval without performing another access procedure. The UE may perform another access procedure to transmit at times not covered by the regular transmission schedule. For example, if an acknowledgement (ACK) for the message isn't received, the UE may perform another access procedure for retransmission.

    RANDOM ACCESS PROCEDURE IN A CELLULAR INTERNET OF THINGS SYSTEM
    3.
    发明申请
    RANDOM ACCESS PROCEDURE IN A CELLULAR INTERNET OF THINGS SYSTEM 有权
    细节互联网系统中的随机访问过程

    公开(公告)号:US20160105908A1

    公开(公告)日:2016-04-14

    申请号:US14511021

    申请日:2014-10-09

    CPC classification number: H04W74/008 H04W4/70 H04W24/08 H04W74/04 H04W74/0833

    Abstract: Methods, systems, and devices are described for wireless communication at a user equipment (UE). In some examples, a base station may allocate, to a UE, time and/or frequency resources for transmitting physical random access channel (PRACH) signals. The resource allocation may be apportioned based on a type and class of PRACH signal. For instance, a UE may be assigned a first subset of resources to transmit regularly scheduled traffic and a second subset of resources to transmit on-demand traffic. Regularly scheduled traffic may include, for example, sensor measurements reported to the base station on a predetermined time interval (e.g., 24 hour time interval). In contrast, an on-demand traffic may include an impromptu transmission, initiated based on a detection of at least one reporting trigger (e.g., sensing an abnormality at the UE).

    Abstract translation: 描述了用于用户设备(UE)的无线通信的方法,系统和设备。 在一些示例中,基站可以向UE分配用于发送物理随机接入信道(PRACH)信号的时间和/或频率资源。 资源分配可以基于PRACH信号的类型和类别来分配。 例如,可以为UE分配资源的第一子集以发送规则调度的业务和资源的第二子集以传送按需业务。 定期调度的业务可以包括例如在预定时间间隔(例如,24小时时间间隔)向基站报告的传感器测量。 相反,按需流量可以包括基于至少一个报告触发的检测(例如,感测到UE处的异常)发起的即时传输。

    FLEXIBLE GAUSSIAN MINIMUM SHIFT KEYING IN A CELLULAR INTERNET OF THINGS SYSTEM
    5.
    发明申请
    FLEXIBLE GAUSSIAN MINIMUM SHIFT KEYING IN A CELLULAR INTERNET OF THINGS SYSTEM 有权
    灵活的高斯最小移动键在系统的细胞互联网中

    公开(公告)号:US20160105891A1

    公开(公告)日:2016-04-14

    申请号:US14510857

    申请日:2014-10-09

    Abstract: Methods, systems, and devices are described for wireless communication at a UE. A user equipment (UE) may utilize orthogonal frequency division multiple access (OFDMA) for demodulating downlink messages and a combination of Gaussian minimum shift keying (GMSK) and single carrier frequency division multiple access (SC-FDMA) for uplink modulation. The uplink modulation process may include generating a symbol vector with an M-point discrete Fourier transform (DFT), filtering the symbol vector with a frequency domain Gaussian filter, generating a sample vector from the filtered symbol vector utilizing an inverse DFT, and modulating the sample vector utilizing GMSK. In some cases, the uplink modulation may be based on a narrowband resource allocation received from a base station.

    Abstract translation: 描述了用于UE处的无线通信的方法,系统和设备。 用户设备(UE)可以利用用于解调下行链路消息的正交频分多址(OFDMA)和用于上行链路调制的高斯最小移位密钥(GMSK)和单载波频分多址(SC-FDMA)的组合。 上行链路调制处理可以包括用M点离散付里叶变换(DFT)生成符号向量,用频域高斯滤波器对符号向量进行滤波,利用逆DFT从滤波后的符号向量生成采样矢量,并调制 使用GMSK的样本向量。 在一些情况下,上行链路调制可以基于从基站接收的窄带资源分配。

    TRANSMIT PHASE MEASUREMENT AND SIGNALING IN WIFI CIRCUITS
    8.
    发明申请
    TRANSMIT PHASE MEASUREMENT AND SIGNALING IN WIFI CIRCUITS 审中-公开
    无线电路中的发射相位测量和信号

    公开(公告)号:US20160295535A1

    公开(公告)日:2016-10-06

    申请号:US14678266

    申请日:2015-04-03

    Abstract: Systems and methods are disclosed that may determine phase offsets in wireless devices. In accordance with some embodiments, a phase of a local oscillator signal associated with transmission of data from a wireless device may be measured by generating a reference signal having a frequency that is a selected integer value times a frequency of a baseband clock signal, generating the local oscillator (LO) signal to have a frequency substantially equal to a carrier frequency of the data transmission, and mixing the reference signal and the LO signal to generate a mixed signal indicative of the phase of the LO signal.

    Abstract translation: 公开了可以确定无线设备中的相位偏移的系统和方法。 根据一些实施例,可以通过产生具有频率为基准时钟信号的频率的选定整数值的参考信号来测量与来自无线设备的数据传输相关联的本地振荡器信号的相位,生成 本地振荡器(LO)信号具有基本上等于数据传输的载波频率的频率,并且混合参考信号和LO信号以产生指示LO信号的相位的混合信号。

    DOWNLINK SYNCHRONIZATION CHANNEL FOR THE NARROW-BAND CELLULAR IOT
    9.
    发明申请
    DOWNLINK SYNCHRONIZATION CHANNEL FOR THE NARROW-BAND CELLULAR IOT 审中-公开
    窄带同步通道的下行同步通道

    公开(公告)号:US20160262123A1

    公开(公告)日:2016-09-08

    申请号:US14990511

    申请日:2016-01-07

    CPC classification number: H04W56/0015 H04J13/0062

    Abstract: To enable efficient synchronization and/or cell acquisition, systems and methods are described for broadcast of a synchronization signal in a synchronization channel. According to an aspect, a base station may generate a synchronization signal and assign the synchronization signal to be carried on a synchronization channel that is time-division multiplexed with one or more other channels (e.g., one or more other downlink channels). The synchronization channel may be a single-carrier channel and/or a wide-band channel. The base station may transmit synchronization signal (e.g., periodically broadcast) on the synchronization channel to enable a time and/or frequency synchronization. According to an aspect, the UE may acquire synchronization information based on detection of the repeating synchronization signal.

    Abstract translation: 为了实现高效同步和/或小区获取,描述了在同步信道中广播同步信号的系统和方法。 根据一个方面,基站可以产生同步信号,并且分配在与一个或多个其他信道(例如,一个或多个其他下行链路信道)时分多路复用的同步信道上承载的同步信号。 同步信道可以是单载波信道和/或宽带信道。 基站可以在同步信道上发送同步信号(例如,周期性地广播),以实现时间和/或频率同步。 根据一方面,UE可以基于重复同步信号的检测来获取同步信息。

    Channel structure for a cellular internet of things system
    10.
    发明授权
    Channel structure for a cellular internet of things system 有权
    物联网的通道结构

    公开(公告)号:US09374796B2

    公开(公告)日:2016-06-21

    申请号:US14511173

    申请日:2014-10-10

    Abstract: Methods, systems, and devices are described for wireless communication at a user equipment (UE). A UE may synchronize with a cell using a waveform known to the UE beforehand, and common to a group of cells. The UE may determine a physical broadcast channel (PBCH) time. The UE may receive the PBCH and determine a physical layer identification (ID) for the cell and a frequency for uplink transmissions. The PBCH may also indicate a channel configuration, which may enable the UE to perform a random access procedure. The channel configuration may include a time/frequency resource configuration of a shared traffic channel. In some cases, the UE may determine resources for data transmission based on an index of a control channel transmission. In some cases, there may be a predetermined delay between control channel transmissions and data channel transmissions. The UE may then enter a low power state during the delay.

    Abstract translation: 描述了用于用户设备(UE)的无线通信的方法,系统和设备。 UE可以预先使用UE已知的波形与小区同步,并且对于一组小区是公共的。 UE可以确定物理广播信道(PBCH)时间。 UE可以接收PBCH并确定小区的物理层标识(ID)和用于上行链路传输的频率。 PBCH还可以指示信道配置,其可以使UE能够执行随机接入过程。 信道配置可以包括共享业务信道的时间/频率资源配置。 在一些情况下,UE可以基于控制信道传输的索引来确定用于数据传输的资源。 在某些情况下,在控制信道传输和数据信道传输之间可能存在预定的延迟。 然后,UE可以在延迟期间进入低功率状态。

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