System and Method for Adaptive Transmission Time Interval (TTI) Structure

    公开(公告)号:US20170318582A1

    公开(公告)日:2017-11-02

    申请号:US15648186

    申请日:2017-07-12

    Abstract: Methods and devices are provided for communicating data in a wireless channel. In one example, a method includes adapting the transmission time interval (TTI) length of transport container for transmitting data in accordance with a criteria. The criteria may include (but is not limited to) a latency requirement of the data, a buffer size associated with the data, a mobility characteristic of a device that will receive the data. The TTI lengths may be manipulated for a variety of reasons, such as for reducing overhead, satisfy quality of service (QoS) requirements, maximize network throughput, etc. In some embodiments, TTIs having different TTI lengths may be carried in a common radio frame. In other embodiments, the wireless channel may partitioned into multiple bands each of which carrying (exclusively or otherwise) TTIs having a certain TTI length.

    System and method for apriori decoding
    65.
    发明授权
    System and method for apriori decoding 有权
    先验解码的系统和方法

    公开(公告)号:US09509442B2

    公开(公告)日:2016-11-29

    申请号:US14132499

    申请日:2013-12-18

    Abstract: Embodiments are provided for transmitting channel information, such as control channel information, using lower resources at the transmitter combined with using apriori information associated with channel information in the decoder of the receiver. The apriori information represent predictable information that can be predicted by the receiver and is not transmitted with the channel information by the transmitter. The transmitter determines the apriori information for the channel and codes the channel information into bits and fields excluding the apriori information. Upon receiving the channel information, the receiver determines the apriori information associated in accordance with previously received information. The apriori information is then provided as probability information for input to the decoder. The decoder then decodes the received information in accordance with the apriori information.

    Abstract translation: 提供实施例,用于使用接收机的解码器中与信道信息相关联的先验信息,在发射机处使用较低的资源来发送诸如控制信道信息的信道信息。 先验信息表示可由接收机预测的并且不被发射机与信道信息一起发送的可预测信息。 发射机确定信道的先验信息,并将信道信息编码为不包括先验信息的比特和字段。 在接收到信道信息之后,接收机根据先前接收到的信息确定相关的先验信息。 然后将先验信息作为用于输入到解码器的概率信息提供。 然后,解码器根据先验信息解码所接收的信息。

    System and Method for an Adaptive Frame Structure with Filtered OFDM
    66.
    发明申请
    System and Method for an Adaptive Frame Structure with Filtered OFDM 有权
    具有滤波OFDM的自适应帧结构的系统和方法

    公开(公告)号:US20160294521A1

    公开(公告)日:2016-10-06

    申请号:US15004430

    申请日:2016-01-22

    Abstract: Different filtered-orthogonal frequency division multiplexing (f-OFDM) frame formats may be used to achieve the spectrum flexibility. F-OFDM waveforms are generated by applying a pulse shaping digital filter to an orthogonal frequency division multiplexed (OFDM) signal. Different frame formats may be used to carry different traffic types as well as to adapt to characteristics of the channel, transmitter, receiver, or serving cell. The different frame formats may utilize different sub-carrier (SC) spacings and/or cyclic prefix (CP) lengths. In some embodiments, the different frame formats also utilize different symbol durations and/or transmission time interval (TTI) lengths.

    Abstract translation: 可以使用不同的滤波正交频分复用(f-OFDM)帧格式来实现频谱灵活性。 通过对正交频分复用(OFDM)信号应用脉冲整形数字滤波器来生成F-OFDM波形。 可以使用不同的帧格式来携带不同的业务类型以及适应信道,发射机,接收机或服务小区的特性。 不同的帧格式可以利用不同的子载波(SC)间隔和/或循环前缀(CP)长度。 在一些实施例中,不同的帧格式还利用不同的符号持续时间和/或传输时间间隔(TTI)长度。

    Systems and methods for traffic-aware medium access selection
    67.
    发明授权
    Systems and methods for traffic-aware medium access selection 有权
    用于流量感知媒体访问选择的系统和方法

    公开(公告)号:US09392487B2

    公开(公告)日:2016-07-12

    申请号:US13887914

    申请日:2013-05-06

    Abstract: Diverse traffic types can be efficiently communicated in a simultaneous manner by dynamically selecting between contention-based and scheduling-based media access control (MAC) communication schemes. Such a mechanism may be particularly beneficial in networks having a contention-based access resources and scheduling based access resources. Contention-based resources and scheduling based resources may occur over a common period, and may be orthogonal in the frequency domain and/or in the code domain. The dynamic selection may be based on a traffic characteristic or a network characteristic, and may be performed on a packet-by-packet basis. The selection criteria may be updated dynamically to adapt to changing network conditions, and may be communicated to the various transmitters via control channels or higher layer signaling.

    Abstract translation: 通过在基于竞争和基于调度的媒体访问控制(MAC)通信方案之间动态选择,可以以同时的方式有效地传送不同的业务类型。 这种机制在具有基于竞争的接入资源和基于调度的接入资源的网络中可能是特别有益的。 基于竞争的资源和基于调度的资源可以在公共周期内进行,并且可以在频域和/或代码域中是正交的。 动态选择可以基于业务特性或网络特性,并且可以逐个分组地执行。 选择标准可以动态地更新以适应变化的网络条件,并且可以经由控制信道或更高层的信令被传送到各种发射机。

    System and Method for Low-Payload Acknowledgment
    68.
    发明申请
    System and Method for Low-Payload Acknowledgment 有权
    低有效负载确认的系统和方法

    公开(公告)号:US20160134399A1

    公开(公告)日:2016-05-12

    申请号:US14537615

    申请日:2014-11-10

    CPC classification number: H04L5/0046 H04L1/14 H04L1/1607 H04L5/0055 H04W4/12

    Abstract: An embodiment method of indicating reception of a plurality of low-payload messages includes receiving the plurality of low-payload messages from respective user equipments (UEs). The method also includes generating a composite reception indication (RIND) containing a RIND for each of the plurality of low-payload messages. The method also includes broadcasting the composite RIND to the respective UEs.

    Abstract translation: 指示接收多个低有效载荷消息的实施例方法包括从相应的用户设备(UE)接收多个低有效载荷消息。 该方法还包括生成包含用于多个低有效载荷消息中的每一个的RIND的复合接收指示(RIND)。 该方法还包括将复合RIND广播到各个UE。

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