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1. 发明授权

US10716121B2 Receiver, communication system and detecting method 有权
公开(公告)号：US10716121B2
公开(公告)日：2020-07-14
申请号：US16368872
申请日：2019-03-29
申请人： Realtek Semiconductor Corp.
发明人： Chih-Hsiu Zeng , Kwang-Cheng Chen , Der-Zheng Liu
IPC分类号： H04B1/7097 , H04W72/08 , H04L29/08 , H04B1/16 , H04W88/08
摘要： The present disclosure provides a receiver. The receiver comprises an antenna, configured to receive a received signal on a downlink direction, wherein the received signal comprises an interfering downlink signal and a desired downlink signal; and a detecting circuit, coupled to the antenna, configured to perform a multiuser detection operation on the received signal on the downlink direction to generate a detected interfering signal and a detected desired signal; wherein the desired downlink signal is transmitted by a first station, intended for the receiver, and generated according to a first modulation order; wherein the interfering downlink signal is transmitted by a second station, intended for a second receiver other than the receiver, and generated according to a second modulation order.

2. 发明申请

US20190335473A1 Receiver, Communication System and Detecting Method 审中-公开
公开(公告)号：US20190335473A1
公开(公告)日：2019-10-31
申请号：US16368872
申请日：2019-03-29
申请人： Realtek Semiconductor Corp.
发明人： Chih-Hsiu Zeng , Kwang-Cheng Chen , Der-Zheng Liu
IPC分类号： H04W72/08 , H04B1/16 , H04L29/08
摘要： The present disclosure provides a receiver. The receiver comprises an antenna, configured to receive a received signal on a downlink direction, wherein the received signal comprises an interfering downlink signal and a desired downlink signal; and a detecting circuit, coupled to the antenna, configured to perform a multiuser detection operation on the received signal on the downlink direction to generate a detected interfering signal and a detected desired signal; wherein the desired downlink signal is transmitted by a first station, intended for the receiver, and generated according to a first modulation order; wherein the interfering downlink signal is transmitted by a second station, intended for a second receiver other than the receiver, and generated according to a second modulation order.

3. 发明授权

US09270313B2 Wireless receiver and method for wireless reception 有权
标题翻译：无线接收机和无线接收方法
公开(公告)号：US09270313B2
公开(公告)日：2016-02-23
申请号：US14515509
申请日：2014-10-15
申请人： Realtek Semiconductor Corp.
发明人： Chung-Yao Chang , Yu-Nan Lin , Der-Zheng Liu , Kuang-Yu Yen
IPC分类号： H03K9/00 , H04L27/22 , H04B1/69 , H04B1/16
CPC分类号： H04B1/16 , H04B1/28
摘要： A wireless receiver includes a radio frequency (RF) receiving unit and a baseband receiving unit. A first path of the RF receiving includes a first filter, and is arranged for receiving an input RF signal and generating a first baseband input signal; a second path is arranged for receiving the input RF signal and generating a second baseband input signal. The baseband receiving unit is arranged for receiving the first baseband input signal and the second baseband input signal to generate a baseband decoded signal. One of the first path and the second path is an in-phase path, and the other is a quadrature-phase path. When the RF receiving unit operates in a first mode, the RF receiving unit only uses the first path to receive the input RF signal.
摘要翻译：无线接收机包括射频（RF）接收单元和基带接收单元。 RF接收的第一路径包括第一滤波器，并且被布置为用于接收输入RF信号并产生第一基带输入信号; 布置第二路径用于接收输入RF信号并产生第二基带输入信号。基带接收单元被配置为接收第一基带输入信号和第二基带输入信号，以产生基带解码信号。第一路径和第二路径之一是同相路径，另一路是正交路径。当RF接收单元以第一模式工作时，RF接收单元仅使用第一路径来接收输入RF信号。

4. 发明授权

US11271678B2 Encoding method, related transmitter apparatus and related receiver apparatus for wireless local area network 有权
公开(公告)号：US11271678B2
公开(公告)日：2022-03-08
申请号：US16920390
申请日：2020-07-02
申请人： Realtek Semiconductor Corp.
发明人： John Timothy Coffey , Der-Zheng Liu
IPC分类号： H03M13/00 , H04L1/00 , H03M13/29 , H03M13/15 , H03M13/11 , H04W84/12
摘要： An encoding method for a wireless local area network includes encoding a packet via a cyclic coding scheme into a first amount of multiple first blocks; processing each of the first amount of the first blocks into a second amount of multiple second blocks; and encoding the second amount of the second blocks via a block coding scheme.

5. 发明授权

US11152963B2 Clear channel assessment policy determination method and communication system thereof 有权
公开(公告)号：US11152963B2
公开(公告)日：2021-10-19
申请号：US16867523
申请日：2020-05-05
申请人： Realtek Semiconductor Corp.
发明人： John Timothy Coffey , Der-Zheng Liu , Hsuan-Yen Chung
IPC分类号： H04B1/04 , H04L27/26 , H04W74/08
摘要： A method of determining CCA (clear channel assessment) policy, applied in a communication system including multiple devices, is provided. The method includes the following steps: the devices broadcasting multiple policy indications, in which the devices include a coordinating device, multiple neighboring devices and multiple local client devices, the local client devices associate with the coordinating device to form a network, and the neighboring devices operate within at least one neighboring network; the coordinating device obtaining multiple neighboring policy indications from multiple neighboring frames transmitted by the neighboring devices; and the coordinating device determining whether to change a coordinating policy indication corresponding to the coordinating device according to the neighboring policy indications. A policy indication of a device indicates a policy among multiple CCA policies. The CCA policies include a first policy and a second policy, and the first policy is less sensitive to a sensed signal than the second policy.

6. 发明申请

US20160128062A1 WIRELESS COMMUNICATION SYSTEM AND ASSOCIATED WIRELESS COMMUNICATION METHOD 有权
公开(公告)号：US20160128062A1
公开(公告)日：2016-05-05
申请号：US14864891
申请日：2015-09-25
申请人： Realtek Semiconductor Corp.
发明人： John Timothy Coffey , Der-Zheng Liu
IPC分类号： H04W72/04
CPC分类号： H04W72/0446 , H04W74/06
摘要： A wireless communication system includes an access point and at least one station, wherein when the access point operates in a setup mode, both the access point and station confirm a specific time slot for transmitting a packet from the station to the access point; and when the access point operates in a data mode following the setup mode, the station directly uses the specific time slot determined in the setup mode to transmit the packet to the access point.

7. 发明申请

US20210226728A1 ENCODING METHOD, RELATED TRANSMITTER APPARATUS AND RELATED RECEIVER APPARATUS FOR WIRELESS LOCAL AREA NETWORK 有权
公开(公告)号：US20210226728A1
公开(公告)日：2021-07-22
申请号：US16920390
申请日：2020-07-02
申请人： Realtek Semiconductor Corp.
发明人： John Timothy Coffey , Der-Zheng Liu
IPC分类号： H04L1/00 , H03M13/29 , H03M13/11 , H03M13/15
摘要： An encoding method includes the following steps: encoding a packet via a cyclic coding scheme into a first amount of multiple first blocks; processing each of the first amount of the first blocks into a second amount of multiple second blocks; and encoding the second amount of the second blocks via a block coding scheme.

8. 发明授权

US10911079B2 Transmitter, communication system and transmission method 有权
公开(公告)号：US10911079B2
公开(公告)日：2021-02-02
申请号：US16794247
申请日：2020-02-19
申请人： Realtek Semiconductor Corp.
发明人： John Timothy Coffey , Der-Zheng Liu , Hsuan-Yen Chung
IPC分类号： H04B1/04 , H04L27/26
摘要： A transmitter operating in a communication system is provided. The transmitter includes an encoding circuit and a modulation circuit. The transmitter is configured to generate multiple encoded bits according to an encoding relationship, in which the encoding relationship is corresponding to a code rate and a minimum distance, and the minimum distance is greater than a reciprocal of the code rate. The modulation circuit is configured to generate a transmission signal according to the encoded bits, such that the encoded bits are transmitted over multiple subcarriers, and each encoded bit is transmitted via a subcarrier. The encoding relationship is corresponding to multiple output codewords, and the minimum distance represents a minimum Hamming distance between two distinct output codewords. One of the output codewords includes the encoded bits.

9. 发明申请

US20210006304A1 Cooperative Precoding Method and Communication System 有权
公开(公告)号：US20210006304A1
公开(公告)日：2021-01-07
申请号：US16877467
申请日：2020-05-18
申请人： Realtek Semiconductor Corp.
发明人： Chih-Hsiu Zeng , Kwang-Cheng Chen , Der-Zheng Liu
IPC分类号： H04B7/0456 , H04B7/026
摘要： A cooperative precoding method, applied in a communication system comprising a coordinating device and multiple serving stations, is provided. The cooperative precoding method includes the following steps: the coordinating device obtaining multiple carrier frequency offset (CFO) parameters of the serving stations with respect to a user device; generating multiple cooperative encoded sequences; assigning the cooperative encoded sequences to the serving stations, respectively, according to an order of the plurality of CFO parameters; and the plurality of serving stations transmitting the cooperative encoded sequences, respectively, to the user device. Each cooperative encoded sequence is transmitted over multiple subcarriers.

10. 发明授权

US10887929B2 Resource allocation method and full duplex communication system 有权
公开(公告)号：US10887929B2
公开(公告)日：2021-01-05
申请号：US16529809
申请日：2019-08-02
申请人： Realtek Semiconductor Corp.
发明人： Ting-Wei Lai , Hsuan-Jung Su , Der-Zheng Liu
IPC分类号： H04L5/14 , H04L29/06 , H04W76/10 , H04W72/08
摘要： The present disclosure provides a resource allocation method. The resource allocation method includes the following steps: selecting multiple first selected virtual nodes according to multiple virtual pheromonal trails on multiple virtual edges, in which the first selected virtual nodes forms at least one virtual tour, and the virtual tour includes multiple first virtual edges; updating the virtual pheromonal trails on the virtual edges according to virtual distances corresponding to the first virtual edges of the virtual tour; selecting multiple second selected virtual nodes according to the updated virtual pheromonal trails on the virtual edges, in which the second selected virtual nodes form at least one resulting virtual tour; allocating the resource blocks to selected user pairs according to the resulting virtual tour.

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