专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08744022B2 Glitch mitigation in a radio receiver 有权
标题翻译：无线电接收机中的毛刺减轻
公开(公告)号：US08744022B2
公开(公告)日：2014-06-03
申请号：US13515982
申请日：2009-12-18
申请人： Oskar Mauritz , Mats Åhlander , Fredrik Huss
发明人： Oskar Mauritz , Mats Åhlander , Fredrik Huss
IPC分类号： H04L27/00
CPC分类号： H04L27/3809
摘要： A basic idea is to determine (S1) occurrence of a glitch caused by operation of the AGC mechanism, identify (S2) those modulation symbols in a digitized version of the received signal that are affected by the glitch, each modulation symbol represented by a number of bits in combination, and then reduce (S3), for each of the identified modulation symbols, the contribution in representing the identified modulation symbol as provided by at least a subset of the bits of the modulation symbol. In this way, the adverse effects of the glitch can be effectively mitigated and subsequent detection of the desired signal can be significantly improved. This also means that the link performance will be significantly improved.
摘要翻译：一个基本思想是确定（S1）由AGC机构的操作引起的毛刺的发生，识别（S2）受毛刺影响的接收信号的数字化版本中的那些调制符号，每个调制符号由数字的比特，然后对于每个所识别的调制符号，减少（S3）表示由调制符号的比特的至少一个子集提供的所识别的调制符号的贡献。以这种方式，可以有效地减轻毛刺的不利影响，并且可以显着地提高对期望信号的后续检测。这也意味着链路性能将显着提高。

2. 发明授权

US09374724B2 Channel estimation using reference signals 有权
标题翻译：使用参考信号的信道估计
公开(公告)号：US09374724B2
公开(公告)日：2016-06-21
申请号：US14355539
申请日：2011-11-03
申请人： Mats Åhlander , David Sandberg , Fredrik Huss , Pontus Arvidsson
发明人： Mats Åhlander , David Sandberg , Fredrik Huss , Pontus Arvidsson
IPC分类号： H04W72/12 , H04W24/06 , H04L25/02
CPC分类号： H04W24/06 , H04L25/0202 , H04L25/0224 , H04W72/1226
摘要： A method in a radio network node for estimating channel gain over frequencies of a bandwidth in a radio communications network. The radio network node measures a first channel gain based on a received power of a sounding reference signal over a first set of frequencies from a user equipment, which first set of frequencies is comprised in the frequencies of the bandwidth. Furthermore, the radio network node measures a second channel gain based on a received power of a received demodulation reference signal of a physical uplink shared channel over a second set of frequencies from the user equipment, which second set of frequencies is comprised in the frequencies of the bandwidth. The radio network node then estimates a third channel gain over the frequencies of the bandwidth based on the measured first channel gain and the measured second channel gain.
摘要翻译：一种无线电网络节点中用于估计无线电通信网络中的带宽频率上的信道增益的方法。无线电网络节点基于来自用户设备的第一组频率上的探测参考信号的接收功率来测量第一信道增益，该第一组频率包括在带宽的频率中。此外，无线电网络节点基于来自用户设备的第二组频率上的物理上行链路共享信道的接收解调参考信号的接收功率测量第二信道增益，该第二组频率包括在带宽。无线电网络节点然后基于所测量的第一信道增益和所测量的第二信道增益来估计带宽频率上的第三信道增益。

3. 发明授权

US09426683B2 Method and base station for providing an estimate of interference and noise power of an uplink resource block 有权
标题翻译：用于提供上行链路资源块的干扰和噪声功率的估计的方法和基站
公开(公告)号：US09426683B2
公开(公告)日：2016-08-23
申请号：US14398273
申请日：2012-05-02
申请人： David Sandberg , Mats Åhlander
发明人： David Sandberg , Mats Åhlander
IPC分类号： H04B7/005 , H04W24/08 , H04B7/08 , H04B17/345 , H04W72/08 , H04L5/00
CPC分类号： H04W24/08 , H04B7/0854 , H04B17/345 , H04L5/0062 , H04L5/0094 , H04W72/082
摘要： A method in a base station (110) for providing an estimate of interference and noise power of an uplink resource block. The base station (110) is comprised in a cellular communications network (100). The base station (110) receives (401, 901) on multiple antenna elements (112a-c) of a receiver antenna (112) a signal comprising interference and noise. The base station (110) calculates (402, 902) an interference and noise covariance matrix for the resource block based on the received signal. The base station (110) then calculates (903, 403) the estimate based on the calculated interference and noise covariance matrix, the number of the multiple antenna elements (112a-c) of the receiver antenna (112) and a channel covariance matrix for a virtual user equipment. The provided estimate enables an interference and noise measure when Interference Rejection Combining (!RC) is applied in the uplink. Thereby more efficient use of uplink Frequency Selective Scheduling (FSS) together with uplink IRC and improved performance in the cellular communications network is enabled.
摘要翻译：一种用于提供上行链路资源块的干扰和噪声功率的估计的基站（110）中的方法。基站（110）包括在蜂窝通信网络（100）中。基站（110）在接收机天线（112）的多个天线元件（112a-c）上接收包括干扰和噪声的信号（401,901）。基站（110）基于接收到的信号计算（402,902）资源块的干扰和噪声协方差矩阵。然后，基站（110）基于所计算的干扰和噪声协方差矩阵，接收机天线（112）的多个天线元件（112a-c）的数量和用于的接收机天线（112）的信道协方差矩阵，计算（903,403）估计值虚拟用户设备。当在上行链路中应用干扰抑制组合（！RC）时，所提供的估计可以实现干扰和噪声测量。因此，能够更有效地使用上行链路频率选择性调度（FSS）以及上行链路IRC和蜂窝通信网络中的改进的性能。

4. 发明授权

US08375271B2 Method and apparatus for providing adaptive cyclic redundancy check computation 有权
标题翻译：提供自适应循环冗余校验计算的方法和装置
公开(公告)号：US08375271B2
公开(公告)日：2013-02-12
申请号：US12739854
申请日：2008-10-23
申请人： Jung-Fu Cheng , Mats Åhlander , Christer Aalto
发明人： Jung-Fu Cheng , Mats Åhlander , Christer Aalto
IPC分类号： G06F11/00
CPC分类号： H03M13/09 , H03M13/2957 , H03M13/2975 , H04L1/0041 , H04L1/0051 , H04L1/0061
摘要： A method and apparatus for providing adaptive cyclic redundancy check (CRC) computation is disclosed. A transport block size is determined. Transport block (TB) CRC bits are computed with a first CRC generator when the TB size is less than or equal to a predetermined threshold. TB CRC bits are computed with a second CRC generator when the transport block size is greater than the predetermined threshold. When the TB is greater than the predetermined threshold, the TB is segmented into code blocks (CBs) and CB CRC bits are computed with the first CRC generator. A method and apparatus for handling adaptively cyclic redundancy check (CRC) encoded transport blocks (TBs) is also disclosed. A TB is received. The TB is CRC checked based on a first CRC generator when the TB size is less than or equal to a predetermined threshold. Code blocks of the TB are CRC checked based on the first CRC generator when the TB size is greater than the predetermined threshold. When the TB size is greater than the predetermined threshold, the code blocks are concatenated, and the TB is CRC checked based on a second CRC generator.
摘要翻译：公开了一种用于提供自适应循环冗余校验（CRC）计算的方法和装置。确定传输块大小。传输块（TB）当TB大小小于或等于预定阈值时，使用第一CRC生成器计算CRC比特。当传输块大小大于预定阈值时，用第二CRC产生器计算TB CRC比特。当TB大于预定阈值时，TB被分割为码块（CB），并且用第一CRC产生器计算CB CRC比特。还公开了一种用于处理自适应循环冗余校验（CRC）编码传输块（TB）的方法和装置。收到结核病。当TB大小小于或等于预定阈值时，TB基于第一CRC发生器进行CRC校验。当TB大于预定阈值时，基于第一CRC生成器对TB的代码块进行CRC校验。当TB大小大于预定阈值时，代码块被级联，并且基于第二CRC产生器检查TB是否被CRC校验。

5. 发明授权

US08867445B2 Bit soft value normalization 有权
标题翻译：位软值归一化
公开(公告)号：US08867445B2
公开(公告)日：2014-10-21
申请号：US13512357
申请日：2009-11-30
申请人： Mats Åhlander
发明人： Mats Åhlander
IPC分类号： H04W4/00 , H04L25/06 , H04L25/03 , H04L5/00
CPC分类号： H04L25/067 , H04L5/0007 , H04L25/03006 , H04L25/03318
摘要： An LTE uplink soft demapper includes an SC-FDMA symbol noise power meter (22) configured to individually determine a noise power measure for each SC-FDMA symbol in a slot by exploiting information contained in modulated data symbols of the corresponding SC-FDMA symbol. A bit soft value normalizer (24) connected to the SC-FDMA symbol noise power meter (22) is configured to normalize bit soft values, representing reliability of received bits obtained from the SC-FDMA symbols in the slot, based on the determined noise power measures.
摘要翻译： LTE上行链路软解映射器包括SC-FDMA符号噪声功率计（22），其被配置为通过利用包含在相应的SC-FDMA符号的调制数据符号中的信息来单独地确定时隙中的每个SC-FDMA符号的噪声功率测量。连接到SC-FDMA符号噪声功率计（22）的位软值归一化器（24）被配置为基于所确定的噪声来对比特软值进行归一化，表示从时隙中的SC-FDMA符号获得的接收比特的可靠性电力措施。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式