公开(公告)号：US20100166105A1

公开(公告)日：2010-07-01

申请号：US12643042

申请日：2009-12-21

申请人： Jia-Hao Wu ,  Yun-Yi Shih ,  Pang-An Ting ,  Ming-Che Lin

发明人： Jia-Hao Wu ,  Yun-Yi Shih ,  Pang-An Ting ,  Ming-Che Lin

IPC分类号： H04L27/00

CPC分类号： H04L27/262

摘要： A transmitter and the method therefor are provided. The transmitter is applied in an orthogonal frequency division multiplexing (OFDM) based or other multicarrier communication systems. The transmitter uses N sub-carriers. Among the N sub-carriers, L sub-carriers (or tones) are reserved for PAPR reduction. L is less than N. The method includes the following steps. Original frequency domain data symbols are generated and fed into the reserved-tone symbol generation unit. The reserved-tone symbols are generated by using pure frequency domain signal processing. Then the reserved-tone symbols are combined with original data symbols to generate combined PAPR reduction signal. The resultant PAPR reduction signal can be fed into reserved-tone symbol generation unit iteratively to obtain updated reserved-tone symbols. For proper iterations, the original data symbols combined with L frequency domain reserved-tone symbols will result in lower PAPR transmit signal.

摘要翻译： 提供了一种发射机及其方法。 发射机应用于基于正交频分复用（OFDM）或其他多载波通信系统中。 发射机使用N个子载波。 在N个子载波中，L个子载波（或音调）被保留用于减少PAPR。 L小于N.该方法包括以下步骤。 生成原始频域数据符号并将其馈送到保留音符号生成单元。 通过使用纯频域信号处理产生保留音符号。 然后将保留音符号与原始数据符号组合以产生组合的PAPR减少信号。 所得到的PAPR降低信号可以迭代地馈送到保留音符号生成单元中以获得更新的保留音符号。 对于正确的迭代，与L个频域保留音符号组合的原始数据符号将导致较低的PAPR发送信号。

公开(公告)号：US20100061318A1

公开(公告)日：2010-03-11

申请号：US12420956

申请日：2009-04-09

申请人： Kuo-Tai Chiu ,  Yun-Yi Shih ,  Yao-Yi Huang ,  Pang-An Ting

发明人： Kuo-Tai Chiu ,  Yun-Yi Shih ,  Yao-Yi Huang ,  Pang-An Ting

IPC分类号： H04W4/00 ,  H04B17/00

CPC分类号： H04W16/14 ,  H04B17/318 ,  H04B17/327 ,  H04B17/382 ,  H04K3/226 ,  H04W16/10 ,  H04W74/0808

摘要： In wireless communication system and method, a guard band detection (GBD) is performed in a channel to detect the existence of guard bands of a correct channel, so to predetermine that whether the current channel is correct or not. If GBD and a subsequent authorization are both passed in the channel, then the channel is determined as the correct channel. Besides, multiple point estimation (MPE) can be used to analyze the signal strengths in different frequencies to predict the location of the correct channel.

摘要翻译： 在无线通信系统和方法中，在信道中进行保护频带检测（GBD），以检测正确信道的保护频带的存在，从而预先确定当前信道是否正确。 如果在通道中通过GBD和后续授权，则将通道确定为正确的通道。 此外，多点估计（MPE）可用于分析不同频率的信号强度，以预测正确信道的位置。

公开(公告)号：US20100241911A1

公开(公告)日：2010-09-23

申请号：US12419272

申请日：2009-04-06

申请人： Yun-Yi Shih ,  Chun-Yu Chen ,  Cheng-Hung Lin ,  An-Yu Wu

发明人： Yun-Yi Shih ,  Chun-Yu Chen ,  Cheng-Hung Lin ,  An-Yu Wu

IPC分类号： G11C29/00 ,  G06F11/00

CPC分类号： H04L1/0071 ,  G11C7/1006 ,  H03M13/2739 ,  H03M13/276 ,  H03M13/2771 ,  H03M13/6508 ,  H03M13/6525 ,  H03M13/6544 ,  H04L1/0052 ,  H04L1/0066

摘要： An address generator of a communication data interleaver and a communication data decoding circuit are provided. The address generator includes a first operation unit and a second operation unit. The first operation unit receives a first parameter and a first operation result. The first operation unit performs a recursive operation according to the first parameter and the first operation result and outputs the first operation result. The second operation unit receives the first operation result, a second operation result, and a second parameter. According to a transmission mode signal, whether the second operation unit generates a second operation result is determined by performing a recursive operation according to the first operation result, the second parameter, and the second operation result, or by calculating the first operation result and the second parameter.

摘要翻译： 提供通信数据交织器的地址发生器和通信数据解码电路。 地址发生器包括第一操作单元和第二操作单元。 第一操作单元接收第一参数和第一操作结果。 第一操作单元根据第一参数和第一操作结果执行递归操作并输出第一操作结果。 第二操作单元接收第一操作结果，第二操作结果和第二参数。 根据传输模式信号，通过根据第一操作结果，第二参数和第二操作结果执行递归操作，或通过计算第一操作结果和第二操作结果来确定第二操作单元产生第二操作结果 第二个参数。

公开(公告)号：US08385442B2

公开(公告)日：2013-02-26

申请号：US12643042

申请日：2009-12-21

申请人： Jia-Hao Wu ,  Yun-Yi Shih ,  Pang-An Ting ,  Ming-Che Lin

发明人： Jia-Hao Wu ,  Yun-Yi Shih ,  Pang-An Ting ,  Ming-Che Lin

IPC分类号： H04L27/28

CPC分类号： H04L27/262

摘要： A transmitter and the method therefor are provided. The transmitter is applied in an orthogonal frequency division multiplexing (OFDM) based or other multicarrier communication systems. The transmitter uses N sub-carriers. Among the N sub-carriers, L sub-carriers (or tones) are reserved for PAPR reduction. L is less than N. The method includes the following steps. Original frequency domain data symbols are generated and fed into the reserved-tone symbol generation unit. The reserved-tone symbols are generated by using pure frequency domain signal processing. Then the reserved-tone symbols are combined with original data symbols to generate combined PAPR reduction signal. The resultant PAPR reduction signal can be fed into reserved-tone symbol generation unit iteratively to obtain updated reserved-tone symbols. For proper iterations, the original data symbols combined with L frequency domain reserved-tone symbols will result in lower PAPR transmit signal.

摘要翻译： 提供了一种发射机及其方法。 发射机应用于基于正交频分复用（OFDM）或其他多载波通信系统中。 发射机使用N个子载波。 在N个子载波中，L个子载波（或音调）被保留用于减少PAPR。 L小于N.该方法包括以下步骤。 生成原始频域数据符号并将其馈送到保留音符号生成单元。 通过使用纯频域信号处理来生成保留音符号。 然后将保留音符号与原始数据符号组合以产生组合的PAPR减少信号。 所得到的PAPR降低信号可以迭代地馈送到保留音符号生成单元中以获得更新的保留音符号。 对于正确的迭代，与L个频域保留音符号组合的原始数据符号将导致较低的PAPR发送信号。