Channel estimation for an OFDM communicaiton system with inactive subbands
    21.
    发明授权
    Channel estimation for an OFDM communicaiton system with inactive subbands 有权
    具有无源子带的OFDM通信系统的信道估计

    公开(公告)号:US08903021B2

    公开(公告)日:2014-12-02

    申请号:US13784531

    申请日:2013-03-04

    IPC分类号: H03K9/00 H04L25/02

    摘要: For channel estimation in a spectrally shaped wireless communication system, an initial frequency response estimate is obtained for a first set of P uniformly spaced subbands (1) based on pilot symbols received on a second set of subbands used for pilot transmission and (2) using extrapolation and/or interpolation, where P is a power of two. A channel impulse response estimate is obtained by performing a P-point IFFT on the initial frequency response estimate. A final frequency response estimate for N total subbands is derived by (1) setting low quality taps for the channel impulse response estimate to zero, (2) zero-padding the channel impulse response estimate to length N, and (3) performing an N-point FFT on the zero-padded channel impulse response estimate. The channel frequency/impulse response estimate may be filtered to obtain a higher quality channel estimate.

    摘要翻译: 对于频谱形状的无线通信系统中的信道估计,基于在用于导频传输的第二组子带上接收的导频符号,获得对于第一组P均匀间隔子带(1)的初始频率响应估计,以及(2)使用 外插和/或插值,其中P是2的幂。 通过对初始频率响应估计执行P点IFFT来获得信道脉冲响应估计。 通过(1)将信道脉冲响应估计的低质量抽头设置为零,(2)将信道脉冲响应估计零填充到长度N,得到N个总子带的最终频率响应估计,以及(3)执行N 点零点填充信道脉冲响应估计。 可以对信道频率/脉冲响应估计进行滤波以获得更高质量的信道估计。

    VARYING NEIGHBOR CELL MEASUREMENT PERIODS BASED ON SERVING CELL SIGNAL STRENGTH
    22.
    发明申请
    VARYING NEIGHBOR CELL MEASUREMENT PERIODS BASED ON SERVING CELL SIGNAL STRENGTH 审中-公开
    基于服务细胞信号强度的变化的邻域细胞测量期

    公开(公告)号:US20140179303A1

    公开(公告)日:2014-06-26

    申请号:US13724995

    申请日:2012-12-21

    IPC分类号: H04W24/08

    CPC分类号: H04W24/08 H04W24/10 H04W88/02

    摘要: A method of wireless communication enables an inter-radio access technology (IRAT) neighbor cell measurement when a serving RAT signal strength is continuously below a first threshold value for a first length of time. The method also disables the IRAT neighbor cell measurement when the serving RAT signal strength is continuously above a second threshold value for a second length of time.

    摘要翻译: 当第一时间长度的服务RAT信号强度连续低于第一阈值时,无线通信的方法能够实现无线电接入技术(IRAT)相邻小区测量。 当服务RAT信号强度持续高于第二阈值持续第二时间长度时,该方法还禁用IRAT相邻小区测量。

    ASSOCIATION AND RESOURCE PARTITIONING IN A WIRELESS NETWORK WITH RELAYS
    23.
    发明申请
    ASSOCIATION AND RESOURCE PARTITIONING IN A WIRELESS NETWORK WITH RELAYS 有权
    在有继电器的无线网络中的协调和资源分配

    公开(公告)号:US20140036763A1

    公开(公告)日:2014-02-06

    申请号:US14047788

    申请日:2013-10-07

    IPC分类号: H04W16/02 H04W16/26

    摘要: Techniques for performing association and resource partitioning in a wireless network with relays are described. In an aspect, resource partitioning may be performed to allocate available resources to nodes and access/backhaul links of relays. In one design, a node computes local metrics for a plurality of possible actions related to resource partitioning. The node receives local metrics for the possible actions from at least one neighbor node and determines overall metrics for the possible actions based on the computed and received local metrics. The node determines resources allocated to a set of nodes and resources allocated to the access and backhaul links of at least one relay based on the overall metrics for the possible actions. In another aspect, association involving relays may be performed by taking into account the performance of the relays. In yet another aspect, association and resource partitioning may be performed jointly.

    摘要翻译: 描述了在具有中继器的无线网络中执行关联和资源划分的技术。 在一个方面,可以执行资源划分以将可用资源分配给中继站的节点和访问/回程链路。 在一种设计中,节点计算与资源划分相关的多个可能动作的本地度量。 该节点接收来自至少一个邻居节点的可能动作的本地度量,并且基于所计算和接收到的本地度量来确定可能动作的总体度量。 该节点基于用于可能的动作的总体度量来确定分配给一组节点和分配给至少一个中继器的接入和回程链路的资源的资源。 另一方面,可以通过考虑继电器的性能来执行涉及继电器的关联。 在另一方面,可以联合执行关联和资源划分。

    METHOD AND APPARATUS FOR UTILIZING OTHER SECTOR INTERFERENCE (OSI) INDICATION
    24.
    发明申请
    METHOD AND APPARATUS FOR UTILIZING OTHER SECTOR INTERFERENCE (OSI) INDICATION 有权
    利用其他干扰(OSI)指标的方法和装置

    公开(公告)号:US20130215760A1

    公开(公告)日:2013-08-22

    申请号:US13853283

    申请日:2013-03-29

    IPC分类号: H04W52/24

    摘要: Techniques for mitigating interference in a wireless communication system are described. In one design, a sector may determine multiple fast other sector interference (OSI) indications for multiple subzones, with each subzone corresponding to a different portion of the system bandwidth. At least one report may be generated for the multiple OSI indications, with each report including at least one OSI indication for at least one subzone. Each report may be encoded to obtain code bits, which may then be mapped to a sequence of modulation symbols. A sequence of modulation symbols of zero values may be generated for each report with all OSI indications in the report set to zero to indicate lack of high interference in the corresponding subzones. This allows a report to be transmitted with zero power in a likely scenario. A regular OSI indication may also be determined for the system bandwidth and transmitted.

    摘要翻译: 描述了用于减轻无线通信系统中的干扰的技术。 在一种设计中,扇区可以确定多个子区域的多个快速其他扇区干扰(OSI)指示,其中每个子区域对应于系统带宽的不同部分。 可以为多个OSI指示生成至少一个报告,每个报告包括至少一个子区域的至少一个OSI指示。 每个报告可以被编码以获得码位,然后可以将其映射到调制符号序列。 可以为每个报告生成零值的调制符号序列,其中报告中的所有OSI指示设置为零,以指示相应子区域中没有高干扰。 这允许在可能的情况下以零功率传输报告。 也可以为系统带宽确定常规的OSI指示并发送。

    Scheduling application delay
    25.
    发明授权

    公开(公告)号:US11832223B2

    公开(公告)日:2023-11-28

    申请号:US17934825

    申请日:2022-09-23

    IPC分类号: H04W72/044 H04W72/23

    CPC分类号: H04W72/044 H04W72/23

    摘要: Certain aspects of the present disclosure provide techniques for managing scheduling of wireless communications. A method that may be performed by a user equipment (UE) includes receiving, from a base station, one or more configurations indicating a plurality of minimum scheduling offset values; receiving, from the base station, a signal indicating one of the minimum scheduling offset values as an updated value to be used for communications with the base station and a type of scheduling; determining a delay based on the type of scheduling; and after the reception of the signal, using the updated value for communications with the base station based on the determined delay.

    Positioning in the presence of passive distributed elements

    公开(公告)号:US09986526B2

    公开(公告)日:2018-05-29

    申请号:US15063159

    申请日:2016-03-07

    摘要: Systems and methodologies are described that facilitate transmitting positioning reference signals (PRS) differently for passive distributed elements. PRSs for passive distributed elements can be transmitted over disparate resources than those utilized for PRSs at a related access point, using different symbol sequences, and/or the like. In this regard, wireless devices can differentiate between PRSs from access points and those from passive distributed elements, which can mitigate confusion for processes involving such RSs, such as position determining. Alternatively, passive distributed elements can refrain from transmitting PRSs, and a corresponding access point can indicate to wireless devices to only determine positioning based on PRSs. Thus, the wireless devices can utilize the PRSs transmitted from the access point (and not other reference signals transmitted from the passive distributed element) to determine a position.

    Method and apparatus for controlling uplink transmit power with optimum delay
    27.
    发明授权
    Method and apparatus for controlling uplink transmit power with optimum delay 有权
    用于以最佳延迟控制上行链路发射功率的方法和装置

    公开(公告)号:US09288760B2

    公开(公告)日:2016-03-15

    申请号:US13916336

    申请日:2013-06-12

    摘要: A method and apparatus for controlling uplink transmit power with optimum delay is described. A transmit power control command may be received. A time slot of the transmit power control command may be determined. Based on the time slot, it may be determined to decode the transmit power control command, with a delay. The transmit power control command may be decoded, after the delay, using a transmit power control command decoding graph by determining a strength of the transmit power control command and plotting the strength on the transmit power control command decoding graph. The transmit power control command decoding graph may include regions. Decoding the transmit power control command, after the delay, may be based on a region associated with plotting the strength of the transmit power control command.

    摘要翻译: 描述用于以最佳延迟来控制上行链路发射功率的方法和装置。 可以接收发射功率控制命令。 可以确定发射功率控制命令的时隙。 基于该时隙,可以确定以延迟解码发送功率控制命令。 发射功率控制命令可以在延迟之后通过确定发射功率控制命令的强度并绘制发射功率控制命令解码图上的强度来使用发射功率控制命令解码图来解码。 发射功率控制命令解码图可以包括区域。 在延迟之后对发射功率控制命令进行解码可以基于与绘制发射功率控制命令的强度相关联的区域。

    ADAPTIVE ASSOCIATION AND JOINT ASSOCIATION AND RESOURCE PARTITIONING IN A WIRELESS COMMUNICATION NETWORK
    29.
    发明申请
    ADAPTIVE ASSOCIATION AND JOINT ASSOCIATION AND RESOURCE PARTITIONING IN A WIRELESS COMMUNICATION NETWORK 有权
    无线通信网络中的自适应协调和联合协调和资源分配

    公开(公告)号:US20130028230A1

    公开(公告)日:2013-01-31

    申请号:US13644712

    申请日:2012-10-04

    IPC分类号: H04W72/04

    CPC分类号: H04W16/10 H04W36/165

    摘要: Techniques for supporting communication in a wireless network are described. In an aspect, association and resource partitioning may be performed jointly to select serving base stations for user equipments (UEs) and to allocate available resources to base stations. In another aspect, adaptive association may be performed to select serving base stations for UEs. In one design, a base station computes local metrics for different possible actions related to association and resource partitioning (or only association). The base station receives local metrics for the possible actions from at least one neighbor base station and determines overall metrics for the possible actions based on the computed and received local metrics. The base station determines serving base stations for a set of UEs and resources allocated to the set of base stations (or just serving base stations for the set of UEs) based on the overall metrics for the possible actions.

    摘要翻译: 描述了用于支持无线网络中的通信的技术。 在一方面,可以联合执行关联和资源划分以选择用于用户设备(UE)的服务基站,并向基站分配可用资源。 在另一方面,可以执行自适应关联以选择用于UE的服务基站。 在一种设计中,基站计算与关联和资源划分(或仅关联)相关的不同可能动作的本地度量。 基站接收来自至少一个相邻基站的可能动作的本地度量,并且基于所计算和接收到的本地度量来确定可能动作的总体度量。 基站可以基于用于可能的动作的总体度量来确定分配给基站集合(或者仅针对该组UE的服务基站)的一组UE和资源的服务基站。