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.

    User equipment silencing based on clear channel assessment in shared spectrum

    公开(公告)号:US10091815B2

    公开(公告)日:2018-10-02

    申请号:US15213156

    申请日:2016-07-18

    Abstract: Methods, systems, and devices for wireless communication are described. A wireless device communicating critical or latency sensitive information may determine that a clear channel assessment (CCA) has failed in a shared radio frequency (RF) spectrum band. The device may then transmit a silencing signal in a managed RF spectrum band, and switch to communicating in the managed band from transmitting in the shared band. Other wireless devices communicating with the first device may receive the silencing signal and may also switch to the managed RF spectrum band. Based on the silencing signal, user equipments (UEs) not associated with the critical communications, but also operating in the managed band, may suspend transmissions in the managed band (e.g., uplink (UL) data), although they may still receive transmissions in the managed band (e.g., downlink (DL) data).

    Communications methods and apparatus that facilitate discovery of small coverage area base stations
    58.
    发明授权
    Communications methods and apparatus that facilitate discovery of small coverage area base stations 有权
    促进小覆盖区域基站发现的通信方法和装置

    公开(公告)号:US09374770B2

    公开(公告)日:2016-06-21

    申请号:US13802742

    申请日:2013-03-14

    Abstract: A communications system includes a plurality of different types of small coverage area base stations, e.g., femto cell base stations, WiFi access points and Bluetooth access points within a macro cell. Different user equipment (UE) devices, e.g., different smartphones, include different capabilities. In order for UE devices and small coverage area base stations with compatible capabilities to efficiently discover one another, the various small coverage area base stations and various UE devices utilize the macro cell communications band and macro cell communication protocol to coordinate device discovery and exchange discovery information and control information which allows a UE device to access a compatible small coverage area base station and subsequently communicate user data, e.g., traffic data, with the UE device.

    Abstract translation: 通信系统包括多个不同类型的小覆盖区域基站,例如,宏小区内的毫微微小区基站,WiFi接入点和蓝牙接入点。 不同的用户设备(UE)设备,例如不同的智能电话,包括不同的能力。 为了使UE设备和具有兼容能力的小型覆盖区域基站有效发现,各种小型覆盖区域基站和各种UE设备利用宏小区通信频带和宏小区通信协议来协调设备发现和交换发现信息 以及控制信息,其允许UE设备访问兼容的小覆盖区域基站,并且随后将用户数据(例如业务数据)与UE设备进行通信。

    OPPORTUNISTIC IOE MESSAGE DELIVERY VIA SENSOR-TRIGGERED FORWARDING
    59.
    发明申请
    OPPORTUNISTIC IOE MESSAGE DELIVERY VIA SENSOR-TRIGGERED FORWARDING 审中-公开
    通过传感器向前移动的机会性消息传递

    公开(公告)号:US20160135242A1

    公开(公告)日:2016-05-12

    申请号:US14826373

    申请日:2015-08-14

    CPC classification number: H04W76/14 H04W8/005 H04W40/02 H04W84/18

    Abstract: Opportunistic wide area network (WAN) connectivity for sensor devices with low transmit power, triggered by sensor device broadcasts, is disclosed which increases the likelihood of the sensor devices' data messages reaching the base station. Multiple sensor devices within proximity to each other establish device to device links. When a sensor device successfully connects to the base station, the base station informs the sensor device selected as a gateway, which in turn broadcasts its identification to peer sensor devices by way of a multi-hop rebroadcasting scheme. This triggers a multi-hop forwarding scheme where sensor devices that receive the broadcast forward their data messages via the D2D links to other peers until their data messages reach the gateway sensor device. The gateway sensor device forwards data messages it receives to the base station, so that the base station receives data packets from multiple sensor devices via the gateway sensor device.

    Abstract translation: 公开了由传感器设备广播触发的具有低发射功率的传感器设备的机会性广域网(WAN)连接,这增加了传感器设备的数据消息到达基站的可能性。 彼此靠近的多个传感器设备建立设备到设备链路。 当传感器设备成功地连接到基站时,基站通知被选择为作为网关的传感器设备,网关又通过多跳转播方案将其标识广播到对等传感器设备。 这触发多跳转发方案,其中接收广播的传感器设备通过D2D链路将其数据消息转发到其他对等体,直到它们的数据消息到达网关传感器设备。 网关传感器设备将其接收的数据消息转发到基站,使得基站经由网关传感器设备从多个传感器设备接收数据分组。

    DISTRIBUTED DEVICE-TO-DEVICE SYNCHRONIZATION
    60.
    发明申请
    DISTRIBUTED DEVICE-TO-DEVICE SYNCHRONIZATION 审中-公开
    分布式设备到设备同步

    公开(公告)号:US20150341873A1

    公开(公告)日:2015-11-26

    申请号:US14286354

    申请日:2014-05-23

    CPC classification number: H04W56/001 H04W56/0015 H04W72/02 H04W72/04

    Abstract: Methods, systems, and devices are described that provide for D2D synchronization. The methods, systems, and/or devices may include tools and techniques that provide for synchronizing a mobile device based on detection of a reliability alarm. A reliability alarm may be used between mobile devices, which is transmitted and/or received on specific D2D resources. Since the resources are reserved for the reliability alarm, a mobile device which was previously isolated from network synchronization will be able to receive the reliability alarm that a reliable synchronization signal is close when it moves within range of a reliable device. Once a reliability alarm is received the mobile device may free other resources to allow it to receive synchronization signals from the reliable devices. The mobile device may then synchronize with the network based on the received synchronization signals and transmit its own reliability alarm for subsequent isolated devices to use.

    Abstract translation: 描述了提供D2D同步的方法,系统和设备。 方法,系统和/或设备可以包括基于可靠性警报的检测来提供用于同步移动设备的工具和技术。 在特定的D2D资源上发送和/或接收的移动设备之间可以使用可靠性警报。 由于资源被保留用于可靠性报警,因此先前与网络同步隔离的移动设备将能够接收到可靠的同步信号在可靠设备的范围内移动时关闭的可靠性报警。 一旦接收到可靠性报警,移动设备就可以释放其它资源,以允许其接收来自可靠设备的同步信号。 然后,移动设备可以基于接收到的同步信号与网络同步,并且为随后的隔离设备发送其自己的可靠性警报以供使用。

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