公开(公告)号：US20180206235A1

公开(公告)日：2018-07-19

申请号：US15744331

申请日：2016-07-22

申请人： Wenxiang ZHU ,  Pingping XU ,  SONY CORPORATION

发明人： Wenxiang ZHU ,  Pingping XU

IPC分类号： H04W72/04 ,  H04W52/02

摘要： An apparatus and a method in a wireless communications system including a first base station and a second base station sharing a licensed band, and the second base station operable on an unlicensed band. The apparatus includes: a receiving unit, configured to receive information indicating received signal strength from user equipments served by the first and second base stations; a decision-making unit, configured to issue a switching instruction according to the received information, to optimize energy efficiency and frequency spectrum efficiency in the wireless communications system, the switching instruction including information indicating user equipments in the user equipments are to be switched to operate on an unlicensed band; and a notification unit, configured to notify the switching instruction to the second base station.

公开(公告)号：US20170367027A1

公开(公告)日：2017-12-21

申请号：US15533073

申请日：2015-11-26

申请人： Guilu WU ,  Pingping XU

发明人： Guilu WU ,  Pingping XU

IPC分类号： H04W40/10 ,  H04W52/02

CPC分类号： H04W40/10 ,  H04L45/42 ,  H04W40/22 ,  H04W52/0203 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/20 ,  Y02D70/21 ,  Y02D70/326 ,  Y02D70/39

摘要： An apparatus and method for wireless communication. The apparatus includes processing circuitry: configured to receive a relay establishment request from a source communication device; configured to acquire historical energy information and current energy information about a candidate communication device as a relay candidate, and to determine one or more relay communication devices to be used as a relay based on the acquired information; and configured to send information about the relay establishment to the one or more relay communication devices, the source communication device, and a destination communication device.

公开(公告)号：US11363633B2

公开(公告)日：2022-06-14

申请号：US16088956

申请日：2017-03-22

申请人： SONY CORPORATION ,  Wei Wang ,  Yuan Zhang ,  Pingping Xu ,  Bingshan Hu ,  Pen-shun Lu

发明人： Wei Wang ,  Yuan Zhang ,  Pingping Xu ,  Bingshan Hu ,  Pen-shun Lu

IPC分类号： H04W74/08 ,  H04W16/14

摘要： A device at a transmitting side includes a channel detection unit configured to detect whether a transmitting-end channel in an unlicensed frequency band is idle; and a coordination unit configured to enable, if the transmitting-end channel is idle, the transmitting side to broadcast an inter-operator coordination signal before transmitting a data stream, so as to realize information interaction between apparatuses of different operators, wherein the inter-operator coordination signal implements, by means of presence/absence of energy in a specified frequency band, an energy pattern signal on a time-frequency domain plane for the information interaction between the apparatuses of different operators. By enabling inter-operator information interaction in an unlicensed frequency band by means of an energy pattern signal, the embodiments of the present disclosure eliminate difficulties of reception and demodulation for signal detection between apparatuses of different operators, thus effectively realizing coordination between the apparatuses of different operators, and improving system performance.

公开(公告)号：US20090238163A1

公开(公告)日：2009-09-24

申请号：US12412670

申请日：2009-03-27

申请人： Yijin Zhang ,  Pingping Xu ,  Pei Liu

发明人： Yijin Zhang ,  Pingping Xu ,  Pei Liu

IPC分类号： H04W4/00

CPC分类号： H04W24/02 ,  H04W28/18 ,  H04W74/0808

摘要： Methods and systems for determining and optimizing a throughput of a short range wireless network are provided. The method mainly includes acquiring respective time parameters in a contention access period based on information transmission characteristics of the short range wireless network; and computing and optimizing the throughput of the short range wireless network based on the respective time parameters. These time parameters are determined based on a non-persistent Carrier Sense Multiple Access CSMA mechanism. Therefore, the present invention employs a non-persistent CSMA mechanism to analyze the CAP of a short range wireless network and thus simplifies complexity in determining the network throughput and the analysis process of network optimization. As such, accurate throughput parameters of the standard network of the short range wireless network may be obtained, the network performance may be optimized and the performance of the short range wireless network is improved.

摘要翻译： 提供了用于确定和优化短距离无线网络的吞吐量的方法和系统。 该方法主要包括基于短距离无线网络的信息传输特性来获取竞争接入时段中的各个时间参数; 并根据各自的时间参数计算和优化短距离无线网络的吞吐量。 这些时间参数是基于非持久载波侦听多路访问CSMA机制来确定的。 因此，本发明采用非持久性CSMA机制来分析短距离无线网络的CAP，从而简化了确定网络吞吐量和网络优化分析过程的复杂性。 因此，可以获得短距离无线网络的标准网络的精确吞吐量参数，可以优化网络性能并且提供短距离无线网络的性能。

公开(公告)号：US20200127715A1

公开(公告)日：2020-04-23

申请号：US16605220

申请日：2018-04-18

申请人： Bin SHENG ,  Pingping XU ,  Wanlin SUN ,  Meng WANG ,  Pen-shun LV ,  Sony Corporation

发明人： Bin SHENG ,  Pingping XU ,  Wanlin SUN ,  Meng WANG ,  Pen-shun LV

IPC分类号： H04B7/0456 ,  H04B7/0426 ,  H04B7/06 ,  H04B7/0417

摘要： The present application relates to an electronic device and a wireless communication method. The electronic device comprises: a processing circuit, configured to select a modulation codebook from a modulation codebook cluster for use in a multiple-input multiple-output MIMO system on the basis of a channel matrix of the MIMO system, the modulation codebook cluster comprising a plurality of modulation codebooks used by a sending terminal device corresponding to the electronic device for generating modulation signals, wherein the number of data streams transmitted after modulation is greater than the number of orthogonal channels; and a transceiving circuit, configured to send feedback information to the sending terminal device, the feedback information comprising identification information of the selected modulation codebook. Using the electronic device and the wireless communication method of the present application can increase the number of data streams that can be transmitted independently in a MIMO system, thus improving transmission efficiency.

公开(公告)号：US08576876B2

公开(公告)日：2013-11-05

申请号：US13482509

申请日：2012-05-29

申请人： Yijin Zhang ,  Pingping Xu ,  Pei Liu

发明人： Yijin Zhang ,  Pingping Xu ,  Pei Liu

IPC分类号： H04J3/00

CPC分类号： H04W24/02 ,  H04W28/18 ,  H04W74/0808

摘要： Methods and systems for determining and optimizing a throughput of a short range wireless network are provided. The method mainly includes acquiring respective time parameters in a contention access period based on information transmission characteristics of the short range wireless network; and computing and optimizing the throughput of the short range wireless network based on the respective time parameters. These time parameters are determined based on a non-persistent Carrier Sense Multiple Access CSMA mechanism. Therefore, the present invention employs a non-persistent CSMA mechanism to analyze the CAP of a short range wireless network and thus simplifies complexity in determining the network throughput and the analysis process of network optimization. As such, accurate throughput parameters of the standard network of the short range wireless network may be obtained, the network performance may be optimized and the performance of the short range wireless network is improved.

摘要翻译： 提供了用于确定和优化短距离无线网络的吞吐量的方法和系统。 该方法主要包括基于短距离无线网络的信息传输特性来获取竞争接入时段中的各个时间参数; 并根据各自的时间参数计算和优化短距离无线网络的吞吐量。 这些时间参数是基于非持久载波侦听多路访问CSMA机制来确定的。 因此，本发明采用非持久性CSMA机制来分析短距离无线网络的CAP，从而简化了确定网络吞吐量和网络优化分析过程的复杂性。 因此，可以获得短距离无线网络的标准网络的精确吞吐量参数，可以优化网络性能并且提供短距离无线网络的性能。

公开(公告)号：US20120230318A1

公开(公告)日：2012-09-13

申请号：US13482509

申请日：2012-05-29

申请人： Yijin Zhang ,  Pingping Xu ,  Pei Liu

发明人： Yijin Zhang ,  Pingping Xu ,  Pei Liu

IPC分类号： H04W84/12

CPC分类号： H04W24/02 ,  H04W28/18 ,  H04W74/0808

摘要： Methods and systems for determining and optimizing a throughput of a short range wireless network are provided. The method mainly includes acquiring respective time parameters in a contention access period based on information transmission characteristics of the short range wireless network; and computing and optimizing the throughput of the short range wireless network based on the respective time parameters. These time parameters are determined based on a non-persistent Carrier Sense Multiple Access CSMA mechanism. Therefore, the present invention employs a non-persistent CSMA mechanism to analyze the CAP of a short range wireless network and thus simplifies complexity in determining the network throughput and the analysis process of network optimization. As such, accurate throughput parameters of the standard network of the short range wireless network may be obtained, the network performance may be optimized and the performance of the short range wireless network is improved.

摘要翻译： 提供了用于确定和优化短距离无线网络的吞吐量的方法和系统。 该方法主要包括基于短距离无线网络的信息传输特性来获取竞争接入时段中的各个时间参数; 并根据各自的时间参数计算和优化短距离无线网络的吞吐量。 这些时间参数是基于非持久载波侦听多路访问CSMA机制来确定的。 因此，本发明采用非持久性CSMA机制来分析短距离无线网络的CAP，从而简化了确定网络吞吐量和网络优化分析过程的复杂性。 因此，可以获得短距离无线网络的标准网络的精确吞吐量参数，可以优化网络性能并且提供短距离无线网络的性能。

公开(公告)号：US08208487B2

公开(公告)日：2012-06-26

申请号：US12412670

申请日：2009-03-27

申请人： Yijin Zhang ,  Pingping Xu ,  Pei Liu

发明人： Yijin Zhang ,  Pingping Xu ,  Pei Liu

IPC分类号： H04J3/00

CPC分类号： H04W24/02 ,  H04W28/18 ,  H04W74/0808

摘要： Methods and systems for determining and optimizing a throughput of a short range wireless network are provided. The method mainly includes acquiring respective time parameters in a contention access period based on information transmission characteristics of the short range wireless network; and computing and optimizing the throughput of the short range wireless network based on the respective time parameters. These time parameters are determined based on a non-persistent Carrier Sense Multiple Access CSMA mechanism. Therefore, the present invention employs a non-persistent CSMA mechanism to analyze the CAP of a short range wireless network and thus simplifies complexity in determining the network throughput and the analysis process of network optimization. As such, accurate throughput parameters of the standard network of the short range wireless network may be obtained, the network performance may be optimized and the performance of the short range wireless network is improved.

摘要翻译： 提供了用于确定和优化短距离无线网络的吞吐量的方法和系统。 该方法主要包括基于短距离无线网络的信息传输特性来获取竞争接入时段中的各个时间参数; 并根据各自的时间参数计算和优化短距离无线网络的吞吐量。 这些时间参数是基于非持久载波侦听多路访问CSMA机制来确定的。 因此，本发明采用非持久性CSMA机制来分析短距离无线网络的CAP，从而简化了确定网络吞吐量和网络优化分析过程的复杂性。 因此，可以获得短距离无线网络的标准网络的精确吞吐量参数，可以优化网络性能并且提供短距离无线网络的性能。