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1. 发明申请

WO2016141566A1 METHODS AND APPARATUSES FOR ANTENNA CALIBRATION 审中-公开
标题翻译：用于天线校准的方法和装置
公开(公告)号：WO2016141566A1
公开(公告)日：2016-09-15
申请号：PCT/CN2015/073996
申请日：2015-03-11
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , YU, Shaowei
发明人： YU, Shaowei , ZHU, Huaisong , ZONG, Zhiyi
IPC分类号： H04B17/14
CPC分类号： H04B17/14 , H01Q3/267 , H04B7/024 , H04B7/04 , H04B17/12 , H04B17/21 , H04L27/34 , H04W88/08
摘要： The present disclosure provides a method and an apparatus in a radio base station for inter-transceiver antenna calibration. The method comprises collecting a first phase difference between a first signal and a first reception signal and a second phase difference between a second signal and a second reception signal. The first signal is transmitted through a reference transmission path of a first transceiver and received through a reference reception path of a second transceiver as the first reception signal. The second signal is transmitted through a reference transmission path of the second transceiver and received through a reference reception path of the first transceiver as the second reception signal. The method further comprises determining and compensating for an inter-loop phase response difference between a first reference path loop of the first transceiver and a second reference path loop of the second transceiver by subtracting the second phase difference from the first phase difference. The first reference path loop consists of the reference transmission path and the reference reception path of the first transceiver, and the second reference path loop consists of the reference transmission path and the reference reception path of the second transceiver.
摘要翻译：本公开提供了一种在无线电基站中进行收发器间天线校准的方法和装置。该方法包括收集第一信号和第一接收信号之间的第一相位差和第二信号与第二接收信号之间的第二相位差。第一信号通过第一收发器的参考传输路径发送，并通过第二收发机的参考接收路径作为第一接收信号接收。第二信号通过第二收发器的参考传输路径发送，并通过第一收发机的参考接收路径作为第二接收信号接收。该方法还包括通过从第一相位差减去第二相位差来确定和补偿第一收发器的第一参考路径环路与第二收发器的第二参考路径环路之间的环路间相位响应差。第一参考路径循环包括第一收发器的参考传输路径和参考接收路径，第二参考路径环路由第二收发器的参考传输路径和参考接收路径组成。

2. 发明申请

WO2018232556A1 METHOD AND APPARATUS FOR ANTENNA CALIBRATION IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
公开(公告)号：WO2018232556A1
公开(公告)日：2018-12-27
申请号：PCT/CN2017/088970
申请日：2017-06-19
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , YU, Shaowei
发明人： YU, Shaowei , XIAO, Lei , ZHU, Huaisong , CHEN, Xueqin
IPC分类号： H04B7/06
摘要： Embodiments of the present disclosure provide methods, apparatuses and computer program products for antenna calibration in a distributed antenna system (DAS). A method is implemented in a digital unit connected with a plurality of distributed antennas including a first antenna, a second antenna and a third antenna. The method comprises: causing transmitting a first signal from the first antenna, a second signal from the second antenna, and a third signal from the third antenna in a same frequency resource; obtaining a receiver and transmitter side loop-back phase difference between the first antenna and the second antenna based on the first signal received at the third antenna, the second signal received at the third antenna, the third signal received at the first antenna, and the third signal received at the second antenna; and obtaining estimations of a time delay difference and an initial phase difference between the first and second antennas based on the obtained loop-back phase difference. Embodiments of the present disclosure may provide improved antenna calibration with low complexity and without need for a Couple Control Unit (CCU).

3. 发明申请

WO2022252176A1 IDENTIFICATION OF RECONFIGURABLE INTELLIGENT SURFACE 审中-公开
公开(公告)号：WO2022252176A1
公开(公告)日：2022-12-08
申请号：PCT/CN2021/098110
申请日：2021-06-03
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , ZHU, Huaisong
发明人： ZHU, Huaisong , LI, Ming , ZHANG, Zhan
IPC分类号： H04B7/145 , H04B17/30 , H04L27/00 , H04W64/00 , G01S5/02
摘要： The present disclosure provides a reconfigurable intelligent surface (RIS), a wireless device, and methods for identifying radio signals therefrom. A method at a RIS for facilitating a first wireless device in identifying radio signals from the RIS comprises: receiving, from a second wireless device, a sequence of radio signals; adjusting the received sequence of radio signals in the analog domain to enable the first wireless device to determine that the adjusted sequence of radio signals comes from the RIS; and transmitting, to the first wireless device, the adjusted sequence of radio signals.

4. 发明申请

WO2021109135A1 METHOD AND ACCESS NETWORK NODE FOR BEAM CONTROL 审中-公开
公开(公告)号：WO2021109135A1
公开(公告)日：2021-06-10
申请号：PCT/CN2019/123731
申请日：2019-12-06
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , LIU, Kangqi
发明人： ZHU, Huaisong , ZHANG, Yipeng
IPC分类号： H04B7/06 , H04W16/28
摘要： A method and an access network node are disclosed for beam control. According to an embodiment, the access network node determines first spatial domain information of a channel between a first terminal device and the access network node, based on second spatial domain information of the channel estimated by uplink signals received previously from the first terminal device at multiple time points. The access network node determines beamforming weights for the first terminal device based on the first spatial domain information.

5. 发明申请

WO2020042014A1 METHOD AND NETWORK DEVICE FOR DATA TRANSMISSION OVER FRONT HAUL INTERFACE 审中-公开
公开(公告)号：WO2020042014A1
公开(公告)日：2020-03-05
申请号：PCT/CN2018/102991
申请日：2018-08-29
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , ZHU, Huaisong
发明人： ZHU, Huaisong , LI, Ming
IPC分类号： H04L25/02 , H04B7/04
摘要： The present disclosure provides a method (200) in a network device for data transmission over a front haul interface between a first unit and a second unit. The method (200) includes: compressing (210), at the first unit, time domain data in frequency domain and/or spatial domain; transmitting (220) the compressed time domain data along with an associated compression parameter over the front haul interface from the first unit to the second unit; and decompressing (230), at the second unit, the compressed time domain data based on the compression parameter.

6. 发明申请

WO2017063614A3 METHOD AND DEVICE FOR TRANSMITTING INFORMATION 审中-公开
公开(公告)号：WO2017063614A3
公开(公告)日：2017-04-20
申请号：PCT/CN2016/107959
申请日：2016-11-30
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , MIAO, Qingyu
发明人： MIAO, Qingyu , LI, Ming , ZHU, Huaisong , WANG, Jianfeng
IPC分类号： H04B7/04 , H04B7/06
摘要： Embodiments of the disclosure generally relate to a method and device for transmitting information. The method for transmitting information includes: a digital beam-forming of a receiver is implemented on a received signal; weights of an analog beam-forming of a transmitter are calculated based on weights of the digital beam-forming or channel estimation information of the receiver; and the analog beam-forming of the transmitter is implemented on a signal to be transmitted.

7. 发明申请

WO2016192590A1 METHOD AND DEVICE FOR IDENTIFYING SOURCE OF INTERFERENCE PROPAGATED VIA ATMOSPHERIC DUCT 审中-公开
标题翻译：用于识别通过大气层传播的干扰源的方法和装置
公开(公告)号：WO2016192590A1
公开(公告)日：2016-12-08
申请号：PCT/CN2016/083627
申请日：2016-05-27
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , ZHU, Huaisong
发明人： ZHU, Huaisong , LI, Peng
IPC分类号： H04W24/00 , H04W64/00
CPC分类号： H04W24/10
摘要： The present disclosure provides a method (300) in a network device for identifying source of interference propagated via atmospheric duct. The method comprises: determining (S310) a set of interfering source candidates; assigning (S320) random access resources to each interfering source candidate in the set; receiving (S330) from each interfering source candidate in the set a measurement result acquired at the interfering source candidate by receiving random accesses from other interfering source candidates in the set; and identifying (S340) whether any of the interfering source candidates in the set is a source of interference propagated via atmospheric duct or not based on the measurement results.
摘要翻译：本公开提供了一种用于识别通过大气管道传播的干扰源的网络设备中的方法（300）。该方法包括：确定（S310）一组干扰源候选; 向所述组中的每个干扰源候选分配（S320）随机接入资源; 从所述干扰源候选中接收（S330）所述干扰源候选中的所述干扰源候选的步骤，通过从所述组中的其它干扰源候选接收随机接入，以及基于所述测量结果，识别（S340）所述组中的任何干扰源候选是否经由大气管道传播的干扰源。

8. 发明申请

WO2016119216A1 AOA DETERMINATION METHOD AND ASSOCIATED WIRELESS COMMUNICATION DEVICE AND RADIO BASE STATION 审中-公开
标题翻译： AOA确定方法和相关无线通信设备和无线基站
公开(公告)号：WO2016119216A1
公开(公告)日：2016-08-04
申请号：PCT/CN2015/071950
申请日：2015-01-30
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , ZHANG, Yipeng
发明人： ZHANG, Yipeng , CUI, Wenming , ZHU, Huaisong
IPC分类号： G01S3/14
CPC分类号： G01S3/28 , G01S3/46
摘要： The present disclosure provides a method implemented in a wireless communication device for determining an Angle of Arrival (AOA) of a wireless signal received at the wireless communication device. The method comprises estimating the AOA of the wireless signal, determining that the estimated AOA is ambiguous and acquiring signal strength measurements for the wireless signal received at two other wireless communication devices, which are located substantively symmetrically about a normal of the wireless communication device's antenna array. The method further comprises disambiguating the estimated AOA based on a comparison of the acquired signal strength measurements. The present disclosure also provides the wireless communication device as well as a Radio Base Station (RBS) comprising the wireless communication device.
摘要翻译：本公开提供了一种在无线通信设备中实现的用于确定在无线通信设备处接收的无线信号的到达角度（AOA）的方法。该方法包括估计无线信号的AOA，确定估计的AOA是不明确的，并且获取在另外两个无线通信设备处接收到的无线信号的信号强度测量，所述无线信号基本上对称地关于无线通信设备的天线阵列的法线。该方法还包括基于所获取的信号强度测量的比较来消除估计的AOA。本公开还提供了无线通信设备以及包括无线通信设备的无线电基站（RBS）。

9. 发明申请

WO2021147067A1 METHOD AND TERMINAL DEVICE FOR MEASUREMENT CONTROL 审中-公开
公开(公告)号：WO2021147067A1
公开(公告)日：2021-07-29
申请号：PCT/CN2020/073966
申请日：2020-01-23
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , LIU, Chunhui
发明人： ZHU, Huaisong
IPC分类号： H04W28/18
摘要： A method and a terminal device are disclosed for measurement control. According to an embodiment, the terminal device detects, for a cell that is shared by two operators and to be measured by the terminal device, whether frequency bands used by the two operators for the cell are overlapped. When detecting that frequency bands used by the two operators for the cell are overlapped, the terminal device performs measurement on a reference signal from one of the two operators at least at the overlapped portion of the frequency bands. The terminal device reports information about a result of the measurement to the two operators.

10. 发明申请

WO2021062592A1 METHOD AND APPARATUS FOR FAULT MITIGATION IN BASE STATION 审中-公开
公开(公告)号：WO2021062592A1
公开(公告)日：2021-04-08
申请号：PCT/CN2019/109348
申请日：2019-09-30
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , LI, Ming
发明人： ZHU, Huaisong
IPC分类号： H01Q3/00 , H04B17/00
摘要： A method and an apparatus for fault mitigation in a base station are disclosed. According to an embodiment, a faulty antenna element in an antenna array is detected. The antenna array transmits a first beam covering a predetermined range of directions. A target direction in which radiation power dropped due to a fault of the detected faulty antenna element is determined. A second beam pointing to the determined target direction is generated.

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