DYNAMIC CONTROL BLANKING IN HETEROGENEOUS NETWORKS
    51.
    发明申请
    DYNAMIC CONTROL BLANKING IN HETEROGENEOUS NETWORKS 有权
    异构网络中的动态控制空白

    公开(公告)号:US20100151873A1

    公开(公告)日:2010-06-17

    申请号:US12484624

    申请日:2009-06-15

    IPC分类号: H04W72/04

    摘要: Systems and methodologies are described that facilitate requesting blanking over control resources from one or more interfering eNBs or devices. An eNB, such as a macrocell, femtocell or picocell eNB, can transmit a downlink control blanking message to a UE directing the UE to perform blanking (e.g., for uplink control resources) or request the blanking from the interfering eNBs or devices (e.g., for downlink control resources). The downlink control blanking message can specify the desired control resources and/or information to determine the control resources. Thus, dynamic control blanking is provided such that blanking is requested to mitigate interference over control resources for the small scale eNB. The small scale eNB can subsequently communicate control data to the UE over the control resources; the control data can include a resource blanking message that similarly directs the UE to request blanking of general data resource from the interfering eNBs or devices.

    摘要翻译: 描述了有助于从一个或多个干扰eNB或设备请求对控制资源进行置空的系统和方法。 诸如宏小区,毫微微小区或微微小区eNB的eNB可以向指示UE执行消隐(例如,对于上行链路控制资源)或从干扰eNB或设备请求消隐的UE发送下行链路控制置空消息(例如, 用于下行链路控制资源)。 下行链路控制消隐消息可以指定期望的控制资源和/或信息来确定控制资源。 因此,提供动态控制消隐,使得消隐被请求以减轻针对小规模eNB的控制资源的干扰。 小规模eNB随后可以通过控制资源向UE发送控制数据; 控制数据可以包括资源消隐消息,其类似地指示UE请求来自干扰eNB或设备的通用数据资源的消隐。

    METHOD AND APPARATUS FOR GENERATING A PERMUTATION FOR FORWARD LINK HOPPING IN WIRELESS COMMUNICATION SYSTEM
    52.
    发明申请
    METHOD AND APPARATUS FOR GENERATING A PERMUTATION FOR FORWARD LINK HOPPING IN WIRELESS COMMUNICATION SYSTEM 有权
    用于生成无线通信系统中前向链路失败的方法和装置

    公开(公告)号:US20100046584A1

    公开(公告)日:2010-02-25

    申请号:US12091681

    申请日:2006-10-27

    IPC分类号: H04B1/713

    摘要: A method and apparatus for generating a permutation for forward link hopping is provided, comprising initializing permutation constants, determining a value for p such that i is less than 2p wherein i is a first counter, initializing a second counter j to ‘0’, setting x to i+1 wherein x is index of elements of an array A, clocking a Pseudo-noise (PN) register n times to generate a pseudorandom number, setting x to p Least Significant Bits (LSB) of the pseudorandom number, incrementing j by 1, determining if x is greater than i, setting x equal to x−i, if x is greater than i, swapping the ith and xth element in the array A, decrementing counter i by 1, and mapping a set of hop-ports to a set of sub-carriers based upon the generated hop-permutation.

    摘要翻译: 提供一种用于产生用于前向链路跳变的置换的方法和装置,包括初始化置换常数,确定p的值使得i小于2p,其中i是第一计数器,将第二计数器j初始化为“0” x到i + 1其中x是阵列A的元素的索引,对伪噪声(PN)寄存器进行n次计时以产生伪随机数,将x设置为p的最小有效位(LSB),递增j 通过1,确定x是否大于i,将x设置为x-i,如果x大于i,则将阵列A中的第i和第x个元素进行交换,将计数器i递减1,并将一组hop- 端口到基于所生成的跳位排列的一组子载波。

    Persistent interference mitigation in a wireless communication
    54.
    发明授权
    Persistent interference mitigation in a wireless communication 有权
    无线通信中的持续干扰减轻

    公开(公告)号:US09125163B2

    公开(公告)日:2015-09-01

    申请号:US12262576

    申请日:2008-10-31

    摘要: Techniques for transmitting data with persistent interference mitigation in a wireless communication system are described. A station (e.g., a base station or a terminal) may observe high interference and may send a request to reduce interference to interfering stations. The request may be valid for a time period covering multiple response periods. Each interfering station may grant or dismiss the request in each response period, may dismiss the request by transmitting at full power, and may grant the request by transmitting at lower than full power. The station may receive a response from each interfering station indicating grant or dismissal of the request by that interfering station in each response period. The station may estimate SINR based on the response received from each interfering station and may exchange data with another station based on the estimated SINR. Persistent interference mitigation may reduce signaling overhead and improve resource utilization and performance.

    摘要翻译: 描述了在无线通信系统中传输具有持续干扰减轻的数据的技术。 站(例如,基站或终端)可以观察到高干扰,并且可以发送减少对干扰站的干扰的请求。 该请求可以在覆盖多个响应周期的时间段内有效。 每个干扰站可以在每个响应周期中授权或者解除请求,可以通过全功率发射来解除请求,并且可以以低于全功率的方式发送请求。 站点可以从每个干扰站接收指示在每个响应周期中该干扰站的请求的授权或解除的响应。 该站可以基于从每个干扰站接收到的响应估计SINR,并且可以基于估计的SINR与另一个站交换数据。 持续的干扰减轻可以减少信令开销并提高资源利用率和性能。

    Pruned bit-reversal interleaver
    55.
    发明授权
    Pruned bit-reversal interleaver 有权
    修剪的位反转交织器

    公开(公告)号:US08156390B2

    公开(公告)日:2012-04-10

    申请号:US12489431

    申请日:2009-06-23

    IPC分类号: G06F11/00 H03M13/03

    摘要: A pruned bit-reversal interleaver supports different packet sizes and variable code rates and provides good spreading and puncturing properties. To interleave data, a packet of input data of a first size is received. The packet is extended to a second size that is a power of two, e.g., by appending padding or properly generating write addresses. The extended packet is interleaved in accordance with a bit-reversal interleaver of the second size, which reorders the bits in the extended packet based on their indices. A packet of interleaved data is formed by pruning the output of the bit-reversal interleaver, e.g., by removing the padding or properly generating read addresses. The pruned bit-reversal interleaver may be used in combination with various types of FEC codes such as a Turbo code, a convolutional code, or a low density parity check (LDPC) code.

    摘要翻译: 修剪的位反转交错器支持不同的分组大小和可变代码率,并提供良好的扩展和打孔属性。 为了交织数据,接收到第一大小的输入数据的分组。 例如,通过附加填充或适当地生成写入地址,将分组扩展到二次幂的第二大小。 扩展分组根据第二大小的位反转交织器进行交织,根据它们的索引对扩展分组中的比特进行重新排序。 通过例如通过去除填充或适当地生成读取地址来修剪比特反转交织器的输出来形成交织数据的分组。 修剪的位反转交织器可以与诸如Turbo码,卷积码或低密度奇偶校验(LDPC)码的各种类型的FEC码组合使用。

    Pruned bit-reversal interleaver
    56.
    发明授权
    Pruned bit-reversal interleaver 有权
    修剪的位反转交织器

    公开(公告)号:US08156389B2

    公开(公告)日:2012-04-10

    申请号:US12371599

    申请日:2009-02-14

    IPC分类号: G06F11/00

    摘要: A pruned bit-reversal interleaver supports different packet sizes and variable code rates and provides good spreading and puncturing properties. To interleave data, a packet of input data of a first size is received. The packet is extended to a second size that is a power of two, e.g., by appending padding or properly generating write addresses. The extended packet is interleaved in accordance with a bit-reversal interleaver of the second size, which reorders the bits in the extended packet based on their indices. A packet of interleaved data is formed by pruning the output of the bit-reversal interleaver e.g., by removing the padding or properly generating read addresses. The pruned bit-reversal interleaver may be used in combination with various types of FEC codes such as a Turbo code, a convolutional code, or a low density parity check (LDPC) code.

    摘要翻译: 修剪的位反转交错器支持不同的分组大小和可变代码率,并提供良好的扩展和打孔属性。 为了交织数据,接收到第一大小的输入数据的分组。 例如,通过附加填充或适当地生成写入地址,将分组扩展到二次幂的第二大小。 扩展分组根据第二大小的位反转交织器进行交织,根据它们的索引对扩展分组中的比特进行重新排序。 通过修剪比特反转交织器的输出,例如通过去除填充或适当地生成读取地址来形成交织数据的分组。 修剪的位反转交织器可以与诸如Turbo码,卷积码或低密度奇偶校验(LDPC)码的各种类型的FEC码组合使用。

    ENHANCED FREQUENCY DIVISION MULTIPLE ACCESS FOR WIRELESS COMMUNICATION
    58.
    发明申请
    ENHANCED FREQUENCY DIVISION MULTIPLE ACCESS FOR WIRELESS COMMUNICATION 有权
    无线通信的增强频段多路访问

    公开(公告)号:US20110216704A1

    公开(公告)日:2011-09-08

    申请号:US13106990

    申请日:2011-05-13

    IPC分类号: H04W4/00

    摘要: Enhanced frequency division multiple access (EFDMA) is a multiplexing scheme that sends modulation symbols in the time domain and achieves a lower PAPR than OFDM. An EFDMA symbol occupies multiple subband groups that are spaced apart in a frequency band, with each subband group containing multiple adjacent subbands. To generate an EFDMA symbol, multiple modulation symbols are mapped onto a first sequence of symbols. A transform (e.g., a DFT) is performed on the first sequence to obtain a second sequence of values. The values in the second sequence corresponding to the subbands used for the EFDMA symbol are retained, and the remaining values are zeroed out to obtain a third sequence of values. An inverse transform (e.g., an IDFT) is performed on the third sequence to obtain a fourth sequence of samples. A phase ramp may be applied on the fourth sequence, and a cyclic prefix is appended to form the EFDMA symbol.

    摘要翻译: 增强型频分多址(EFDMA)是在时域中发送调制符号并实现比OFDM更低的PAPR的复用方式。 EFDMA符号占据在频带中间隔开的多个子带组,每个子带组包含多个相邻子带。 为了产生EFDMA符号,将多个调制符号映射到第一符号序列上。 对第一序列执行变换(例如,DFT)以获得第二值序列。 对应于用于EFDMA符号的子带的第二序列中的值被保留,并且剩余的值被清零以获得第三值序列。 对第三序列执行逆变换(例如,IDFT)以获得第四序列。 可以在第四序列上施加相位斜坡,并且附加循环前缀以形成EFDMA符号。