Assigning uplink slots to optimize uplink power control gain in wireless communications
    21.
    发明授权
    Assigning uplink slots to optimize uplink power control gain in wireless communications 失效
    分配上行链路时隙以优化无线通信中的上行链路功率控制增益

    公开(公告)号:US07492735B2

    公开(公告)日:2009-02-17

    申请号:US10718387

    申请日:2003-11-20

    摘要: A method and system for assigning uplink (UL) slots to optimize time division duplex (TDD) UL power. In order to assure proper power control gain, UL slots are judiciously allocated close to the beacon slot. The UL slots may be allocated based on channel sensing. All users are sorted in the order of reducing fading losses. Sorting information is also used to allocate the UL slots. The UL slots may also be allocated based on signal interference information, code usage availability estimates and spread signal interference values. Alternatively, block error rate (BLER) and signal to interference ratio (SIR) measurements may be used to allocate the UL slots.

    摘要翻译: 一种用于分配上行链路(UL)时隙以优化时分双工(TDD)UL功率的方法和系统。 为了确保适当的功率控制增益,UL插槽在信标时隙附近被明智地分配。 可以基于信道感测来分配UL时隙。 所有用户按照减少衰落损失的顺序进行排序。 排序信息也用于分配UL插槽。 也可以基于信号干扰信息,代码使用可用性估计和扩展信号干扰值来分配UL时隙。 或者,可以使用块错误率(BLER)和信号与干扰比(SIR)测量来分配UL时隙。

    METHOD AND APPARATUS FOR IMPROVED SPATIAL TEMPORAL TURBO CHANNEL CODING (STTCC) USING EIGEN-BEAMFORMING
    22.
    发明申请
    METHOD AND APPARATUS FOR IMPROVED SPATIAL TEMPORAL TURBO CHANNEL CODING (STTCC) USING EIGEN-BEAMFORMING 失效
    用于改进空间波纹通道编码(STTCC)的方法和装置使用EIGEN-BEAMFORMING

    公开(公告)号:US20070291868A1

    公开(公告)日:2007-12-20

    申请号:US11760266

    申请日:2007-06-08

    IPC分类号: H04L1/02

    摘要: The present invention is a method and apparatus for improving the performance of spatial temporal turbo channel coding (STTCC) used in multiple-input multiple-output (MIMO) wireless communication systems called eigen-STTCC (E-STTCC) that employs eigen-beamforming to make use of orthogonal eigen streams in the MIMO channel. Singular value decomposition (SVD) is applied to the channel matrix producing a linear precoding matrix containing the orthonormal basis for the eigen streams. In a first embodiment, the turbo encoded codeword containing concatenated systematic and parity bits is precoded with the linear precoding matrix such that the systematic bits are transmitted over the eigen streams with highest power. In a second embodiment, the codeword is made up of interleaved systematic bits and parity bits prior to eigen beamform preceding, effectively interleaving the systematic and data bits spatially over the eigen streams. In an alternate embodiment, the data stream is interleaved at the input to the encoder.

    摘要翻译: 本发明是一种用于改善在称为特征STTCC(E-STTCC)的多输入多输出(MIMO)无线通信系统中使用的空间时间turbo信道编码(STTCC)的性能的方法和装置,其使用特征波束形成 利用MIMO信道中的正交本征流。 将奇异值分解(SVD)应用于产生包含本征流的正交基的线性预编码矩阵的信道矩阵。 在第一实施例中,包含连接的系统和奇偶校验位的turbo编码码字用线性预编码矩阵进行预编码,使得系统比特在具有最高功率的本征流上传输。 在第二实施例中,码字由在本征波束形成之前的交织的系统比特和奇偶校验位组成,有效地将系统和数据比特空间地交织在本征流上。 在替代实施例中,数据流在编码器的输入处交错。

    METHOD AND APPARATUS FOR IMPLEMENTING H-ARQ IN A MIMO WIRELESS COMMUNICATION SYSTEM
    23.
    发明申请
    METHOD AND APPARATUS FOR IMPLEMENTING H-ARQ IN A MIMO WIRELESS COMMUNICATION SYSTEM 有权
    用于在MIMO无线通信系统中实现H-ARQ的方法和装置

    公开(公告)号:US20070242773A1

    公开(公告)日:2007-10-18

    申请号:US11736847

    申请日:2007-04-18

    IPC分类号: H04L27/00 H04L1/02

    摘要: A method and apparatus for implementing hybrid automatic repeat request (H-ARQ) in a multiple-input multiple-output (MIMO) wireless communication system are disclosed. A transmitter transmits at least two data packets via two or more antennas. If at least one of the data packets is not successfully transmitted, the transmitter retransmits the data packets while rearranging the data packets in an orthogonal spreading manner. Alternatively, the transmitter may retransmit only the unsuccessfully transmitted data packet along with a new data packet which replaces a successfully transmitted data packet. The unsuccessfully transmitted data packet may simply be repeated without changing its format. When only the unsuccessfully transmitted data packet is retransmitted along with the new data packet, the transmissions may be combined to recover the retransmitted data packet and the new data packet simultaneously.

    摘要翻译: 公开了一种用于在多输入多输出(MIMO)无线通信系统中实现混合自动重传请求(H-ARQ)的方法和装置。 发射机经由两个或更多个天线发送至少两个数据分组。 如果数据分组中的至少一个没有成功发送,则在以正交扩频方式重排数据分组的同时,发射机重发数据分组。 或者,发射机可以仅重新发送未成功发送的数据分组以及替换成功发送的数据分组的新数据分组。 可以简单地重复未成功发送的数据分组而不改变其格式。 当只有未成功发送的数据分组与新的数据分组一起重传时,可以组合传输以同时恢复重传的数据分组和新的数据分组。

    Fast H-ARQ acknowledgement generation method using a stopping rule for turbo decoding
    24.
    发明申请
    Fast H-ARQ acknowledgement generation method using a stopping rule for turbo decoding 有权
    使用快速解码的停止规则的快速H-ARQ确认生成方法

    公开(公告)号:US20070168830A1

    公开(公告)日:2007-07-19

    申请号:US11491410

    申请日:2006-07-21

    IPC分类号: H03M13/00

    摘要: A stopping rule for Turbo decoding that is applied for both good and bad code blocks is disclosed. If the iteration either converges or diverges, decoding is terminated. In an alternative embodiment, the result of the stopping rule testing may be used for H-ARQ acknowledgement generation: if the iteration converges, an ACK is generated and if the iteration diverges, a NACK is generated. Optionally, the maximum number of decoding iterations may be dynamically selected based on MCS levels.

    摘要翻译: 公开了适用于好的和坏的代码块的用于Turbo解码的停止规则。 如果迭代收敛或发散,则解码终止。 在替代实施例中,停止规则测试的结果可以用于H-ARQ确认生成:如果迭代收敛,则生成ACK,并且如果迭代发散,则生成NACK。 可选地,可以基于MCS级别来动态地选择最大数量的解码迭代。

    System and method for providing variable security level in a wireless communication system
    25.
    发明申请
    System and method for providing variable security level in a wireless communication system 有权
    在无线通信系统中提供可变安全级别的系统和方法

    公开(公告)号:US20070140494A1

    公开(公告)日:2007-06-21

    申请号:US11241429

    申请日:2005-09-30

    IPC分类号: H04K1/00

    摘要: A system and method for providing variable security levels in a wireless communication network. The present invention optimizes the often conflicting demands of highly secure wireless communications and high speed wireless communications. According to a preferred embodiment of the present invention, various security sensors are scanned to determine the likely presence of an intruder within a predetermined trust zone. If an intruder is likely present, the security level is changed to the highest setting, and consequently a lower data rate, while the intruder is identified. If the identified intruder is in fact a trusted node, the security level is returned to a lower setting. If the identified intruder is not a trusted node, the security level is maintained at an elevated state while the intruder is within the trust zone.

    摘要翻译: 一种用于在无线通信网络中提供可变安全级别的系统和方法。 本发明优化了高度安全的无线通信和高速无线通信的经常冲突的需求。 根据本发明的优选实施例,扫描各种安全传感器以确定入侵者在预定信任区域内的可能存在。 如果入侵者可能存在,则安全级别将更改为最高设置,从而更低的数据速率,同时入侵者被识别。 如果识别的入侵者实际上是可信节点,那么安全级别将返回到较低的设置。 如果识别的入侵者不是可信节点,则入侵者在信任区域内时,安全级别保持在升高的状态。

    User equipment for controlling transmission power levels
    26.
    发明申请
    User equipment for controlling transmission power levels 审中-公开
    控制传输功率电平的用户设备

    公开(公告)号:US20070030882A1

    公开(公告)日:2007-02-08

    申请号:US11545665

    申请日:2006-10-10

    IPC分类号: H04B1/00

    摘要: A user equipment (UE) for controlling transmission power levels in a system employing a spread spectrum time division duplex (TDD) technique having frames with timeslots for communication comprises a measuring device configured to receive, during a first time slot, a communication including a power level and measure the power level of the received communication and an interference power level. A pathloss estimation device determines a pathloss estimate and a long term pathloss estimate, based in part on the measured power level and the received power level. A quality measurement device determines a first quality factor, α, and a second quality factor, 1−α, of the pathloss estimate based in part on a number of timeslots, D, between the first and a second timeslot. A transmit power calculation device sets a transmission power level for transmission during the second timeslot.

    摘要翻译: 一种用于在采用具有用于通信的时隙的帧的扩频时分双工(TDD)技术的系统中控制传输功率电平的用户设备(UE),包括测量设​​备,被配置为在第一时隙期间接收包括功率 并测量接收到的通信的功率电平和干扰功率电平。 路径损耗估计装置部分地基于所测量的功率电平和接收功率电平来确定路径损耗估计和长期路径损耗估计。 质量测量装置部分地基于第一和第二时隙之间的时隙数D来确定路径损耗估计的第一品质因子α和第二品质因子1-α。 发送功率计算装置在第二时隙期间设定用于发送的发送功率电平。

    WEIGHTED OPEN LOOP POWER CONTROL SYSTEM
    27.
    发明申请
    WEIGHTED OPEN LOOP POWER CONTROL SYSTEM 失效
    加权开环功率控制系统

    公开(公告)号:US20070025423A1

    公开(公告)日:2007-02-01

    申请号:US11544275

    申请日:2006-10-06

    IPC分类号: H04B1/707 H04B1/69

    摘要: A weighted open loop power control system for controlling transmission power levels using a spread spectrum time division duplex (TDD) technique having frames with timeslots for communication comprises a receiver and a transmitter. The receiver includes a reference channel data generator, a spreading and training sequence insertion device, an amplifier, a summer, a modulator, and an antenna. The transmitter includes a demodulator configured to receive a transmitted signal from the receiver, a channel estimation device, a data estimation device, and a weighted open loop power controller. The weighted open loop power controller includes a power measurement device, a pathloss estimation device configured to receive an interpreted power level from the data estimation device and estimate the pathloss and update a long term average of the pathloss, a quality measurement device, and a transmit power calculation device for determining the transmitter's power level and to control the receiver's amplifier.

    摘要翻译: 一种用于使用具有用于通信的时隙的帧的扩频时分双工(TDD)技术来控制发射功率电平的加权开环功率控制系统包括接收机和发射机。 接收机包括参考信道数据发生器,扩展和训练序列插入装置,放大器,加法器,调制器和天线。 发射机包括解调器,被配置为从接收机接收发射信号,信道估计装置,数据估计装置和加权开环功率控制器。 所述加权开环功率控制器包括功率测量装置,路径损耗估计装置,被配置为从所述数据估计装置接收解释的功率电平,并且估计所述路径损耗并更新所述路径损耗的长期平均值,质量测量装置和发送 功率计算装置,用于确定发射机的功率电平并控制接收机的放大器。

    Method and apparatus for providing a highly reliable ACK/NACK for time division duplex (TDD) and frequency division duplex (FDD)
    28.
    发明授权
    Method and apparatus for providing a highly reliable ACK/NACK for time division duplex (TDD) and frequency division duplex (FDD) 有权
    用于为时分双工(TDD)和频分双工(FDD)提供高度可靠的ACK / NACK的方法和装置,

    公开(公告)号:US07158802B2

    公开(公告)日:2007-01-02

    申请号:US10369837

    申请日:2003-02-19

    IPC分类号: H04B7/00 G08B5/22 G08B25/00

    摘要: An ACK/NACK method and system for use in time division duplex (TDD) and frequency division duplex (FDD) systems. In high speed downlink packet access (HSDPA), based on the assignment of timeslots for the high speed shared information channel (HS-SICH), each user equipment (UE) can be assigned two (2) different channelization codes. It is then possible to adopt the signaling convention that one code represents acknowledge error-free (Ack) and the other code shall represent acknowledge error condition (Nack). The Node B is able to distinguish the presence of the transmitted channelization code as opposed to the channelization code which is not transmitted. The probability of error, using this invention is an order of a magnitude smaller than if the Ack/Nack were signaled using typical modulation techniques.

    摘要翻译: 用于时分双工(TDD)和频分双工(FDD)系统的ACK / NACK方法和系统。 在高速下行链路分组接入(HSDPA)中,基于高速共享信息信道(HS-SICH)的时隙分配,每个用户设备(UE)可被分配两个不同的信道化码。 然后可以采用一个代码表示无错误(Ack)的信令约定,另一个代码将表示确认错误条件(Nack)。 节点B能够区分发送的信道化码的存在,而不是不发送的信道化码。 使用本发明的误差概率是小于如果使用典型的调制技术来表示Ack / Nack的量级的数量级。

    Generation of user equipment identification specific scrambling code for the high speed shared control channel
    29.
    发明授权
    Generation of user equipment identification specific scrambling code for the high speed shared control channel 有权
    生成高速共享控制通道用户识别专用扰码

    公开(公告)号:US07158635B2

    公开(公告)日:2007-01-02

    申请号:US10328575

    申请日:2002-12-23

    IPC分类号: H04K1/00 H04L9/00

    摘要: The present invention provides embodiments for producing a user equipment identification scrambling sequence (UEIDSS). The produced sequences for different user identification codes have a high separation. A base station uses the UEIDSS to scramble a high speed shared control channel (HS-SSCH) and a user equipment (UE) uses the UEIDSS to descramble the HS-SSCH. The embodiments utilize various blocks for producing the codes. These blocks include Reed-Muller encoding, concatenation, rate matching, segmentation, convolutional encoding, tail bit discarding, zero padding, repeating, CRC calculation, quadratic residue coding, parity-check bit, shortening, puncturing and BCH encoding blocks.

    摘要翻译: 本发明提供了用于产生用户设备识别加扰序列(UEIDSS)的实施例。 用于不同用户识别码的所产生的序列具有高的分离。 基站使用UEIDSS来加扰高速共享控制信道(HS-SSCH),并且用户设备(UE)使用UEIDSS解扰HS-SSCH。 这些实施例利用各种块来产生代码。 这些块包括Reed-Muller编码,级联,速率匹配,分段,卷积编码,尾位丢弃,零填充,重复,CRC计算,二次残留编码,奇偶校验位,缩短,删截和BCH编码块。