Bandwidth information determination for flexible bandwidth carriers

    公开(公告)号:US10111125B2

    公开(公告)日:2018-10-23

    申请号:US15222200

    申请日:2016-07-28

    Abstract: Methods, systems, and devices for wireless communication are provided for mobility management for wireless communications systems that utilize a flexible bandwidth carrier. Some embodiments include approaches for determining bandwidth information, such as one or more bandwidth scaling factors N and/or flexible bandwidths, at a user equipment (UE), where the bandwidth information may not be signaled to the UE. Embodiments for determining bandwidth information include: random ordered bandwidth scaling factor approaches, delay ordered bandwidth scaling factor approaches, storing bandwidth scaling factor value in UE Neighbor Record approaches, spectrum measurement approaches, spectrum calculation approaches, and/or a priori approaches. Flexible bandwidth carrier systems may utilize spectrum portions that may not be big enough to fit a normal waveform. Flexible bandwidth carrier systems may be generated through dilating, or scaling down, time, frame lengths, bandwidth, or the chip rate of the flexible bandwidth carrier systems with respect to a normal bandwidth carrier system.

    Orthogonal modulation using M-sequences and Hadamard transforms
    2.
    发明授权
    Orthogonal modulation using M-sequences and Hadamard transforms 有权
    使用M序列和Hadamard变换的正交调制

    公开(公告)号:US09584243B2

    公开(公告)日:2017-02-28

    申请号:US14167391

    申请日:2014-01-29

    Abstract: Methods, systems, and devices are described for orthogonal modulation of signals using maximal length sequences and Hadamard transforms. Modulation symbols to be transmitted are arranged into sequences indexed from 1 to 2n−1 for some integer n. A constant is added to the beginning of each sequence, which is then multiplied by a Hadamard matrix of size 2n×2n. The resulting sequences will be orthogonal and will have a first value of zero. The first value is discarded, and the sequence are reordered and associated with m-sequences. The signal is then transmitted. A cyclic prefix may also be transmitted. Upon receiving the transmission, a receiver may discard the cyclic prefix or use it for channel equalization. The receiver may then reorder the received signal, insert a zero, apply the 2n×2n Hadamard transform, discard the zero, and order the sequences again according to the index to retrieve the data.

    Abstract translation: 描述了使用最大长度序列和Hadamard变换的信号的正交调制的方法,系统和装置。 要发送的调制符号被排列成从1到2n-1索引一些整数n的序列。 将常数加到每个序列的开头,然后乘以一个大小为2n×2n的哈达玛矩阵。 所得到的序列将是正交的,并且将具有零的第一值。 第一个值被丢弃,序列重新排序并与m序列相关联。 然后发送信号。 循环前缀也可以被发送。 在接收到传输时,接收机可以丢弃循环前缀或将其用于信道均衡。 然后,接收机可以重新排序接收到的信号,插入零,应用2n×2n Hadamard变换,丢弃零,并根据索引重新排序序列以检索数据。

    Compressed mode measurements for flexible bandwidth carrier systems, devices, and methods
    4.
    发明授权
    Compressed mode measurements for flexible bandwidth carrier systems, devices, and methods 有权
    灵活宽带载波系统,设备和方法的压缩模式测量

    公开(公告)号:US09113348B2

    公开(公告)日:2015-08-18

    申请号:US13707465

    申请日:2012-12-06

    CPC classification number: H04W24/02 H04W36/0094 H04W48/20

    Abstract: Methods, systems, and devices are provided that may address problems to enabling a user equipment (UE) in connected mode on a normal bandwidth cell to make inter-frequency measurements on another normal bandwidth cell and a flexible bandwidth cell. Some embodiment utilize a set of compressed mode gap configurations for measuring both normal bandwidth and flexible bandwidth inter-frequency cells with the following modification for flexible bandwidth cells: reducing the coherent length used by the UE; using the same cell search parameters at the UE but modifying the compressed mode gap parameters to accommodate both normal bandwidth and flexible bandwidth cell search; and/or maintaining the compressed mode gap parameters but reducing the search window size during cell search coherent accumulation. Some embodiments may configure separate compressed mode measurements configuration for normal bandwidth and flexible bandwidth measurements.

    Abstract translation: 提供了可以解决问题的方法,系统和设备,以使得在正常带宽小区上处于连接模式的用户设备(UE)在另一个正常带宽小区和灵活带宽小区上进行频率间测量。 一些实施例利用一组压缩模式间隙配置来测量正常带宽和灵活带宽频率间小区,对灵活带宽小区进行以下修改:减少UE使用的相干长度; 在UE处使用相同的小区搜索参数,但是修改压缩模式间隙参数以适应正常带宽和灵活带宽小区搜索; 和/或保持压缩模式间隙参数,但在小区搜索相干累积期间减小搜索窗口大小。 一些实施例可以为正常带宽和灵活的带宽测量配置单独的压缩模式测量配置。

    Bandwidth information determination for flexible bandwidth carriers

    公开(公告)号:US10667162B2

    公开(公告)日:2020-05-26

    申请号:US16107303

    申请日:2018-08-21

    Abstract: Methods, systems, and devices for wireless communication are provided for mobility management for wireless communications systems that utilize a flexible bandwidth carrier. Some embodiments include approaches for determining bandwidth information, such as one or more bandwidth scaling factors N and/or flexible bandwidths, at a user equipment (UE), where the bandwidth information may not be signaled to the UE. Embodiments for determining bandwidth information include: random ordered bandwidth scaling factor approaches, delay ordered bandwidth scaling factor approaches, storing bandwidth scaling factor value in UE Neighbor Record approaches, spectrum measurement approaches, spectrum calculation approaches, and/or a priori approaches. Flexible bandwidth carrier systems may utilize spectrum portions that may not be big enough to fit a normal waveform. Flexible bandwidth carrier systems may be generated through dilating, or scaling down, time, frame lengths, bandwidth, or the chip rate of the flexible bandwidth carrier systems with respect to a normal bandwidth carrier system.

    High data rate broadcast channel systems, devices, and methods
    6.
    发明授权
    High data rate broadcast channel systems, devices, and methods 有权
    高数据速率广播频道系统,设备和方法

    公开(公告)号:US09516626B2

    公开(公告)日:2016-12-06

    申请号:US13763937

    申请日:2013-02-11

    CPC classification number: H04W72/0406 H04W28/22

    Abstract: Methods, systems, and devices are provided that may enable wireless communications systems that utilize flexible bandwidths to transmit at the same or similar rates as wireless communications systems that utilize normal bandwidths. Some embodiments identify a target rate for a broadcast channel of a first bandwidth carrier system and transmit broadcast information utilizing the target rate. The target rate is higher than a scaled rate that results from scaling the rate for a broadcast channel of a second bandwidth carrier system by a bandwidth scaling factor. The first and second bandwidth carrier systems may be flexible and normal bandwidth carrier systems, respectively. To compensate for the bandwidth scaling and effectively maintain the rate at which information is transmitted in normal bandwidth carrier systems, different optimized schedules for system and master information transmission, different channelization codes and channels, and/or different scaled spreading factors may be identified and utilized.

    Abstract translation: 提供了可以使利用灵活带宽的无线通信系统以与利用正常带宽的无线通信系统相同或相似的速率进行传输的方法,系统和设备。 一些实施例标识第一带宽载波系统的广播信道的目标速率,并利用目标速率发送广播信息。 目标速率高于由第二带宽载波系统的广播信道的频率缩放带宽缩放因子而产生的缩放率。 第一和第二带宽载波系统可以分别是灵活的和正常的带宽载波系统。 为了补偿带宽缩放并有效地维持在普通带宽载波系统中传输信息的速率,可以识别和利用用于系统和主信息传输,不同信道化码和信道的不同优化调度和/或不同的扩展扩展因子 。

    Assistance information for flexible bandwidth carrier mobility methods, systems, and devices
    7.
    发明授权
    Assistance information for flexible bandwidth carrier mobility methods, systems, and devices 有权
    灵活的带宽载波移动方法,系统和设备的辅助信息

    公开(公告)号:US09516531B2

    公开(公告)日:2016-12-06

    申请号:US13662845

    申请日:2012-10-29

    Abstract: Methods, systems, and devices for mobility management for wireless communications systems that utilize a flexible bandwidth carrier are provided. Some embodiments include determining and transmitting assistance information to one or more user equipment (UEs) to facilitate mobility management with respect to the flexible bandwidth carrier. Some embodiments include signaling flexible bandwidth carrier information to UEs including, but not limited to: UE-centric approaches, network-centric approaches, network-centric approaches with PLMN, SIB creation approaches, and/or application layer approaches. A flexible bandwidth carrier may involve a wireless communications system that may utilize portions of spectrum that may not fit a normal bandwidth. A flexible bandwidth carrier may be generated with respect to a normal bandwidth carrier through dilating, or scaling down, the time or the chip rate of the flexible bandwidth carrier with respect to the normal bandwidth carrier. Some embodiments may expand a bandwidth for a flexible bandwidth carrier.

    Abstract translation: 提供了用于利用灵活带宽载体的无线通信系统的移动性管理的方法,系统和设备。 一些实施例包括确定并向一个或多个用户设备(UE)发送辅助信息,以促进相对于灵活带宽载波的移动性管理。 一些实施例包括向UE发送灵活的带宽载波信息,包括但不限于:以UE为中心的方法,以网络为中心的方法,具有PLMN的网络中心方法,SIB创建方法和/或应用层方法。 灵活的带宽载波可以涉及可以利用可能不适合正常带宽的频谱部分的无线通信系统。 可以通过相对于普通带宽载波扩展或缩小柔性带宽载波的时间或码片速率来相对于正常带宽载波生成灵活的带宽载波。 一些实施例可以扩展用于灵活带宽载波的带宽。

    Activating and deactivating semi-persistent scheduling for an LTE VoIP radio bearer
    9.
    发明授权
    Activating and deactivating semi-persistent scheduling for an LTE VoIP radio bearer 有权
    激活和停用LTE VoIP无线电承载的半持续调度

    公开(公告)号:US09084142B2

    公开(公告)日:2015-07-14

    申请号:US13633828

    申请日:2012-10-02

    CPC classification number: H04W28/06

    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus determines an operational state of a header compressor or a header decompressor by determining a transition between different operational states associated with the header compressor and/or by determining a transition between different operational states associated with the header decompressor. A persistent scheduling mode is changed in response to a change in the operational state of the header compressor. The persistent scheduling mode may be changed by activating uplink persistent scheduling when the operational state of the header compressor changes from a first order state to a second order state, and/or by deactivating the uplink persistent scheduling when the operational state of the header compressor exits the second order state.

    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。 该装置通过确定与报头压缩器相关联的不同操作状态之间的转换和/或通过确定与报头解压缩器相关联的不同操作状态之间的转换来确定报头压缩器或报头解压缩器的操作状态。 响应于报头压缩器的操作状态的改变而改变持续调度模式。 当头部压缩器的操作状态从一阶状态改变到二阶状态时,和/或当头部压缩机的操作状态退出时,通过停止上行链路持续调度来激活上行链路持续调度,可以改变持续调度模式 二阶状态。

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