会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明申请
    • NODE AND METHOD FOR DETERMINING LINK ADAPTATION PARAMETERS
    • 用于确定链路适配参数的节点和方法
    • WO2014094282A1
    • 2014-06-26
    • PCT/CN2012/087068
    • 2012-12-20
    • TELEFONAKTIEBOLAGET L M ERICSSON(PUBL)QIAN, Yu
    • QIAN, YuHU, YangLIU, JinhuaZHU, Huaisong
    • H04W72/08
    • H04W72/1231H04L1/20H04W28/26H04W52/285
    • The present invention relates to a method for determining link adaptation parameters for a wireless device. The method is performed in a first radio network node of a wireless communication system. The first radio network node hosts a first cell serving the wireless device. The wireless device is interfered by a second cell. The method comprises predicting (410) a future position of the wireless device. The method also comprises estimating (420) a first radio channel quality value for the wireless device in the predicted future position, based on: pathloss values related to the wireless device in the predicted future position for the first and the second cell respectively; and a transmission power of the second cell. The method further comprises determining (430) link adaptation parameters for the scheduling of the wireless device in the future position using the estimated first radio channel quality value.
    • 本发明涉及一种用于确定无线设备的链路自适应参数的方法。 该方法在无线通信系统的第一无线电网络节点中执行。 第一无线电网络节点承载为无线设备提供服务的第一小区。 无线设备被第二小区干扰。 该方法包括预测(410)无线设备的未来位置。 所述方法还包括:基于以下方式估计(420)所述无线设备在所述预测未来位置中的第一无线电信道质量值:基于与所述无线设备相关的在所述第一和第二小区的预测未来位置中的路径损耗值; 和第二小区的发射功率。 该方法还包括使用估计的第一无线电信道质量值来确定(430)链路自适应参数以用于将来位置中的无线设备的调度。
    • 5. 发明申请
    • LOW LATENCY CHANNEL ESTIMATION FOR DOWNLINK MIMO
    • 用于下行链路MIMO的低信道信道估计
    • WO2011156940A1
    • 2011-12-22
    • PCT/CN2010/001054
    • 2010-07-14
    • TELEFONAKTIEBOLAGET L M ERICSSON (publ)HU, YangJONSSON, Elias
    • HU, YangJONSSON, Elias
    • H04W80/00
    • H04W24/02H04J13/0003H04J13/004H04J13/0048H04J13/18H04L5/0016H04L5/0051H04L25/022H04L25/0224H04L25/0232H04L27/2613H04L27/262H04W48/08H04W72/042
    • When more than two layers are multiplexed in one CDM group, length-4 OCC has to be used across both clusters in one subframe. This means that slot-by-slot channel estimation according to conventional schemes cannot be exploited and Doppler impact cannot be well overcome. By introducing virtual variables and virtual channel samples that are used in processing two time slots in a subframe independently and applying a frequency domain filter based on the virtual variables and then performing postprocessing based on virtual channel samples, slot-by-slot processing is possible to reduce latency and overcome Doppler impact. Code de- spreading of length-4 OCC is no longer processed in time domain, but in frequency domain with two adjacent CDM subgroups. As a result, the frequency domain filtering can start earlier whereby detection latency and processing time for OCC of length longer than 2 is reduced. It can also be used for the length-2 OCC.
    • 当一个CDM组中多于两层复用时,必须在一个子帧中跨两个簇使用长度为4的OCC。 这意味着根据常规方案的逐时隙信道估计不能被利用,并且多普勒影响不能很好地克服。 通过引入用于独立处理子帧中的两个时隙的虚拟变量和虚拟信道样本,并且基于虚拟变量应用频域过滤器,然后基于虚拟信道样本执行后处理,逐个时隙处理是可能的 减少延迟并克服多普勒影响。 长度为4的OCC的码扩展不再在时域中进行处理,而在频域中具有两个相邻的CDM子组。 结果,可以更早地开始频域滤波,从而降低长度大于2的OCC的检测等待时间和处理时间。 它也可以用于长度为2的OCC。
    • 9. 发明申请
    • SYSTEM AND METHOD OF MODULATION AND CODING SCHEME ADJUSTMENT FOR A LTE SHARED DATA CHANNEL
    • 用于LTE共享数据信道的调制和编码方案调整的系统和方法
    • WO2010018442A2
    • 2010-02-18
    • PCT/IB2009/006512
    • 2009-08-11
    • TELEFONAKTIEBOLAGET L M ERICSSON (publ)CHENG, jung-FuHU, Yang
    • CHENG, jung-FuHU, Yang
    • H04L5/00
    • H04L1/0005H04L1/0003H04L1/0011H04L1/0026H04L5/0007H04L5/0044H04L5/0058
    • A system, method and node for modulation and coding scheme adjustment for a Long Term Evolution (LTE) shared Data Channel. The method determines an actual number of orthogonal frequency division multiplexing (OFDM) symbols, N OS utilized for the shared Data Channel. A modulation order for transmission of data on the shared Data Channel is increased when the actual number of OFDM symbols Nos is less than 11 and decreased when N OS is more than 11. A modulation and coding scheme field ( I MCS ) of a downlink control information of the shared Data Channel may also be determined. If o ≤ I MCS +11- N OS ≤ 28, the modulation order is modified by utilizing a factor of (I MCS + 11 - N OS ) in a standardized modulation scheme. If it is determined that I MCS + 11 - N OS MCS + 11 - N OS > 28, the modulation order is set to 64 Quadtrative Amplitude Modulation (64QAM).
    • 用于长期演进(LTE)共享数据信道的调制和编码方案调整的系统,方法和节点。 该方法确定用于共享数据信道的正交频分复用(OFDM)符号的实际数量N OS。 当实际的OFDM符号数目N s小于11时,用于共享数据信道上的数据传输的调制阶数增加,并且当N OS大于11时,调制阶数降低。调制和编码方案字段( 还可以确定共享数据信道的下行链路控制信息的数目。 如果满足下列条件,则调制阶数通过利用因子(I MCS + 11 - N OS)在标准化调制方案中。 如果确定I MCS + 11-N o,调制阶数设置为正交相移键控(QPSK)。 如果确定I MCS + 11-N OS > 28,调制阶数被设置为64 Quadrature Amplitude Modulation(64QAM)。