TRANSMITTING APPARATUS, RECEIVING APPARATUS, AND LINK ADAPTATION METHOD
    1.
    发明申请
    TRANSMITTING APPARATUS, RECEIVING APPARATUS, AND LINK ADAPTATION METHOD 有权
    发送装置,接收装置和链路适配方法

    公开(公告)号:US20090034637A1

    公开(公告)日:2009-02-05

    申请号:US11912630

    申请日:2006-04-24

    IPC分类号: H04L27/28 H04J99/00

    摘要: A link adaptation method and others wherein feedback information amount can be reduced. According to this method, a receiving apparatus (100) calculates, based on a channel matrix, a capacity (C) and a stream ratio (r) that is a ratio of the reception qualities of streams, and then transmits, as feedback information, the calculated capacity (C) and stream ratio (r) to a transmitting apparatus. In the transmitting apparatus (200), the number of transmittable streams, the modulation scheme and the fed-back capacity (C) are used to calculate the encoding ratio (R) and sequence length (S) of spatial multiplexed symbols. Then, the modulation scheme (M1-Mn) of each stream is decided based on the fed-back stream ratio (r) and the sequence length (S) of spatial multiplexed symbols.

    摘要翻译: 链路适配方法等可以减少反馈信息量。 根据该方法,接收装置(100)基于信道矩阵计算作为流的接收质量的比率的容量(C)和流比(r),然后作为反馈信息, 计算的容量(C)和流量比(r)。 在发送装置(200)中,使用可发送流的数量,调制方式和反馈容量(C)来计算空间复用符号的编码率(R)和序列长度(S)。 然后,基于反馈流比(r)和空间复用符号的序列长度(S)来决定各流的调制方式(M1-Mn)。

    TRANSMITTING APPARATUS, RECEIVING APPARATUS AND TRANSMISSION POWER CONTROL METHOD
    2.
    发明申请
    TRANSMITTING APPARATUS, RECEIVING APPARATUS AND TRANSMISSION POWER CONTROL METHOD 有权
    发射装置,接收装置和传输功率控制方法

    公开(公告)号:US20090227211A1

    公开(公告)日:2009-09-10

    申请号:US11915724

    申请日:2006-05-30

    IPC分类号: H04B7/00 H04B1/04

    CPC分类号: H04W52/247 H04W52/262

    摘要: A transmitting apparatus, a receiving apparatus and a transmission power control method wherein even in a case of performing a transmission power control of multi-valued modulated symbols, the degradation of reception characteristic and that of network usage efficiency can be avoided. A power control instructing part (204) adjusts, based on an encoding rate and a modulation scheme in a case of applying a power control value, which maximizes the MIMO channel capacity, to each stream, the power control value of a stream, which is the most likely to be affected by a power estimation error, into a reference value, and then applies the adjustment value used for that adjustment to the other streams, that is, the streams that are not likely to be affected by the power estimation error. A power control part (205) performs a transmission power control in accordance with the power control value as adjusted by the power control instructing part (204).

    摘要翻译: 一种发送装置,接收装置和发送功率控制方法,其中即使在执行多值调制符号的发送功率控制的情况下,也可以避免接收特性的劣化和网络使用效率的劣化。 功率控制指示部(204)根据编码率和调制方式,对每个流施加使MIMO信道容量最大化的功率控制值,将流的功率控制值,即 最有可能受功率估计误差影响的参考值,然后将用于该调整的调整值应用于其他流,即不太可能受功率估计误差影响的流。 功率控制部(205)根据由功率控制指示部(204)调节的功率控制值进行发送功率控制。

    Transmitting apparatus, receiving apparatus, and link adaptation method
    3.
    发明授权
    Transmitting apparatus, receiving apparatus, and link adaptation method 有权
    发送装置,接收装置和链路适配方法

    公开(公告)号:US07844013B2

    公开(公告)日:2010-11-30

    申请号:US11912630

    申请日:2006-04-24

    IPC分类号: H04L27/00

    摘要: A link adaptation method and others wherein feedback information amount can be reduced. According to this method, a receiving apparatus (100) calculates, based on a channel matrix, a capacity (C) and a stream ratio (r) that is a ratio of the reception qualities of streams, and then transmits, as feedback information, the calculated capacity (C) and stream ratio (r) to a transmitting apparatus. In the transmitting apparatus (200), the number of transmittable streams, the modulation scheme and the fed-back capacity (C) are used to calculate the encoding ratio (R) and sequence length (S) of spatial multiplexed symbols. Then, the modulation scheme (M1-Mn) of each stream is decided based on the fed-back stream ratio (r) and the sequence length (S) of spatial multiplexed symbols.

    摘要翻译: 链路适配方法等可以减少反馈信息量。 根据该方法,接收装置(100)基于信道矩阵计算作为流的接收质量的比率的容量(C)和流比(r),然后作为反馈信息, 计算的容量(C)和流量比(r)。 在发送装置(200)中,使用可发送流的数量,调制方式和反馈容量(C)来计算空间复用符号的编码率(R)和序列长度(S)。 然后,基于反馈流比(r)和空间复用符号的序列长度(S)来决定各流的调制方式(M1-Mn)。

    MIMO TRANSMITTING APPARATUS, MIMO RECEIVING APPARATUS, AND RETRANSMITTING METHOD
    5.
    发明申请
    MIMO TRANSMITTING APPARATUS, MIMO RECEIVING APPARATUS, AND RETRANSMITTING METHOD 有权
    MIMO发射设备,MIMO接收设备和重传方法

    公开(公告)号:US20090055701A1

    公开(公告)日:2009-02-26

    申请号:US11909415

    申请日:2006-03-27

    IPC分类号: H04L1/18 G06F11/14

    摘要: A MIMO transmitting apparatus that achieves a flexible control in accordance with variation of a propagation environment to reduce the number of retransmissions. A buffer (104) temporarily stores transport bits, which have been interleaved, in preparation for retransmission. An intra-code-word interleaver (105) performs an interleave process by all of the bits included in the symbols to be simultaneously transmitted from a plurality of transmitting antennas. When performing an intra-code-word interleave process, the intra-code-word interleaver (105) performs the interleave process in accordance with an interleave pattern notified from an interleave pattern table (107). A counter (106) counts retransmission requests, and outputs the number of retransmissions to the interleave pattern table (107). The interleave pattern table (107) stores interleave patterns to be used for intra-code-word interleave process for the respective numbers of retransmissions, and notifies the intra-code-word interleaver (105) of an interleave pattern in accordance with a number of retransmissions.

    摘要翻译: 一种MIMO发送装置,其根据传播环境的变化实现灵活的控制,以减少重发次数。 缓冲器(104)临时存储已经被交织的传输比特,以准备重传。 码内字交织器(105)通过从多个发送天线同时发送的符号中包含的所有比特执行交织处理。 当进行码内字交错处理时,码内字交织器(105)根据从交织模式表(107)通知的交织模式进行交织处理。 计数器(106)对重发请求进行计数,并将重发次数输出到交织模式表(107)。 交织模式表(107)存储要用于各个重传次数的码内字交织处理的交织模式,并根据数量的多个通知码内字交织器(105)的交织模式 重传。

    MIMO transmitting apparatus, MIMO receiving apparatus, and retransmitting method
    7.
    发明授权
    MIMO transmitting apparatus, MIMO receiving apparatus, and retransmitting method 有权
    MIMO发送装置,MIMO接收装置以及重传方法

    公开(公告)号:US08086927B2

    公开(公告)日:2011-12-27

    申请号:US11909415

    申请日:2006-03-27

    IPC分类号: G08C25/02 G06F11/10

    摘要: A MIMO transmitting apparatus that achieves a flexible control in accordance with variation of a propagation environment to reduce the number of retransmissions is disclosed. An intra-code-word interleaver performs an interleave process on bits included in symbols to be simultaneously transmitted from a plurality of transmitting antennas. When performing the intra-code-word interleave process, the intra-code-word interleaver performs the interleave process in accordance with an interleave pattern notified from an interleave pattern table. A counter counts a number of retransmission requests, and outputs the number of retransmission requests to the interleave pattern table. The interleave pattern table stores interleave patterns to be used for the intra-code-word interleave process for the respective numbers of retransmission requests, and notifies the intra-code-word interleaver of an interleave pattern in accordance with the number of retransmission requests.

    摘要翻译: 公开了一种根据传播环境的变化实现灵活控制以减少重发次数的MIMO发送装置。 码内字交错器对从多个发送天线同时发送的符号中包含的比特执行交织处理。 当执行码内字交错处理时,帧内码交织器根据从交织模式表通知的交织模式进行交织处理。 计数器对多个重传请求进行计数,并将重传请求的次数输出到交织模式表。 交织模式表存储用于各个重发请求次数的码内字交织处理的交织模式,并根据重发请求次数通知码内字交织器交织模式。

    Transmitting apparatus, receiving apparatus and transmission power control method
    8.
    发明授权
    Transmitting apparatus, receiving apparatus and transmission power control method 有权
    发射装置,接收装置和发射功率控制方法

    公开(公告)号:US07920889B2

    公开(公告)日:2011-04-05

    申请号:US11915724

    申请日:2006-05-30

    IPC分类号: H04B7/00 H04B1/04

    CPC分类号: H04W52/247 H04W52/262

    摘要: A transmitting apparatus, a receiving apparatus and a transmission power control method wherein even in a case of performing a transmission power control of multi-valued modulated symbols, the degradation of reception characteristic and that of network usage efficiency can be avoided. A power control instructing part (204) adjusts, based on an encoding rate and a modulation scheme in a case of applying a power control value, which maximizes the MIMO channel capacity, to each stream, the power control value of a stream, which is the most likely to be affected by a power estimation error, into a reference value, and then applies the adjustment value used for that adjustment to the other streams, that is, the streams that are not likely to be affected by the power estimation error. A power control part (205) performs a transmission power control in accordance with the power control value as adjusted by the power control instructing part (204).

    摘要翻译: 一种发送装置,接收装置和发送功率控制方法,其中即使在执行多值调制符号的发送功率控制的情况下,也可以避免接收特性的劣化和网络使用效率的劣化。 功率控制指示部(204)根据编码率和调制方式,对每个流施加使MIMO信道容量最大化的功率控制值,将流的功率控制值,即 最可能受功率估计误差影响的参考值,然后将用于该调整的调整值应用于其他流,即不太可能受功率估计误差影响的流。 功率控制部(205)根据由功率控制指示部(204)调节的功率控制值进行发送功率控制。

    RADIO TRANSMITTING APPARATUS AND RADIO TRANSMITTING METHOD
    9.
    发明申请
    RADIO TRANSMITTING APPARATUS AND RADIO TRANSMITTING METHOD 审中-公开
    无线电发射装置和无线电发射方法

    公开(公告)号:US20090262851A1

    公开(公告)日:2009-10-22

    申请号:US12097845

    申请日:2006-12-20

    IPC分类号: H04B7/02 H04L27/00

    摘要: A radio transmitting apparatus and a radio transmitting method wherein the loss of transmission efficiency is suppressed to improve the reception quality of pilots received by a receiver apparatus. In the present apparatus and method, in a case of transmitting a pilot block at one of two transmission antennas, the areas of data blocks placed immediately before and after the pilot block are reduced, and the CP of the pilot block is expanded by the amount of that reduction. On the other hand, it is arranged that the interval of transmitting the expanded CP and pilot block be an interval of halting the transmission at the other transmission antenna.

    摘要翻译: 一种无线发送装置和无线发送方法,其中抑制了传输效率的损失,以提高接收机装置接收的导频的接收质量。 在本装置和方法中,在两个发送天线之一发送导频块的情况下,导频块之前和之后放置的数据块的面积减少,导频块的CP扩大量 的减少。 另一方面,设置发送扩展CP和导频块的间隔是停止另一个发送天线的发送的间隔。

    RADIO TRANSMITTER, RADIO RECEIVER AND SYMBOL ARRANGING METHOD
    10.
    发明申请
    RADIO TRANSMITTER, RADIO RECEIVER AND SYMBOL ARRANGING METHOD 审中-公开
    无线电发射机,无线接收机和符号安装方法

    公开(公告)号:US20090022239A1

    公开(公告)日:2009-01-22

    申请号:US11915846

    申请日:2006-06-01

    IPC分类号: H04B7/04

    摘要: A symbol arranging method by which a processing load due to channel estimation for MIMO channels can be reduced. In the methods a symbol is arranged for a transmission frame format having a pilot area and a data area. The pilot symbol is arranged in the pilot area. An ICE data symbol used for iterative channel estimation (ICE) is arranged in an ICE data area in the data area. The MIMO data symbol not used for ICE is arranged in the MIMO data area in the data area.

    摘要翻译: 一种符号排列方法,可以减少由于MIMO信道的信道估计引起的处理负担。 在方法中,对具有导频区域和数据区域的传输帧格式设置符号。 导频符号安排在试点区域。 用于迭代信道估计(ICE)的ICE数据符号被布置在数据区域中的ICE数据区域中。 不用于ICE的MIMO数据符号被布置在数据区中的MIMO数据区域中。