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21. 发明申请

WO2016148615A1 TRANSMIT POWER BALANCING OF ANTENNA BRANCHES IN A MULTI-ANTENNA SYSTEM 审中-公开
标题翻译：天线分支在多天线系统中的发射功率平衡
公开(公告)号：WO2016148615A1
公开(公告)日：2016-09-22
申请号：PCT/SE2015/050315
申请日：2015-03-18
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： SIMONSSON, Arne , ASPLUND, Henrik , HAGERMAN, Bo
IPC分类号： H04B7/04 , H01Q5/30
CPC分类号： H04B7/0426 , H04W52/245 , H04W52/42
摘要： There is provided a method for transmit power balancing of antenna branches in a multi-antenna system, the multi-antenna system having at least two antenna branches. The method comprises performing (S1) transmissions with at least two different transmit power configurations of the antenna branches of the multi-antenna system. The method also comprises collecting (S2) feedback information from at least one wireless device and/or information representative of communication performance of the multi-antenna system in response to the transmissions with at least two different transmit power configurations. The method comprises detecting (S3) a transmit power difference between at least two of the antenna branches based on the collected information. The method further comprises reallocating (S4) transmit power between antenna branches based on the detected transmit power difference.
摘要翻译：提供了一种用于多天线系统中的天线分支的发射功率平衡的方法，所述多天线系统具有至少两个天线分支。该方法包括使用多天线系统的天线分支的至少两个不同发射功率配置来执行（S1）传输。该方法还包括响应于具有至少两个不同发射功率配置的传输，从至少一个无线设备收集（S2）反馈信息和/或表示多天线系统的通信性能的信息。该方法包括基于收集的信息检测（S3）至少两个天线分支之间的发射功率差。该方法还包括基于检测到的发射功率差重新分配（S4）天线分支之间的发射功率。

22. 发明申请

WO2023277744A1 CHANNEL MODELLING 审中-公开
公开(公告)号：WO2023277744A1
公开(公告)日：2023-01-05
申请号：PCT/SE2021/050656
申请日：2021-06-30
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： JALDÉN, Niklas , THURFJELL, Magnus , ASPLUND, Henrik
IPC分类号： H04B7/0456 , H04B7/0417 , H04B7/06 , H04L1/00 , H04W16/28 , H04W28/04 , H04B7/04 , H04B7/0413 , H04B7/0452 , H04L5/14
摘要： Disclosed is a method (500) performed by a network node (110), the method (500) comprises transmitting (510), by an advanced antenna system, (200) of the network node (110), training sequences using a predetermined configuration (413) and receiving (520), from a first wireless device (120), a channel information report (410) indicative of a preferred configuration (415) of a plurality of different predetermined configurations (413). Further to this, the method (500) comprises determining (530) a channel model (425) associated with the first wireless device (120) by mapping (535) the received preferred configuration (415) to one or more historic reference signal reports (420), estimating (540), based on the determined channel model (425), an interference level between the first wireless device (120) and one or more additional wireless devices (120), and updating (550) a configuration of the network node (110) for subsequent transmissions to the first wireless device (120) based on the estimated interference level.

23. 发明申请

WO2022197219A1 DETECT WEATHER CHANGES VIA GROUND PLANE REFLECTION COEFFICIENTS 审中-公开
公开(公告)号：WO2022197219A1
公开(公告)日：2022-09-22
申请号：PCT/SE2021/050226
申请日：2021-03-15
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： ÖKVIST, Peter , SIMONSSON, Arne , ASPLUND, Henrik , MOHAMAD, Medhat
IPC分类号： G01S13/95 , G01N22/00 , G01S7/41 , G01W1/10
摘要： The present disclosure relates to a method a radio base station (10) of determining a current characteristic of a surface (12), and a radio base station (10) performing the method.In an aspect, a method a radio base station (10) of determining a current characteristic of a surface (12) is provided. The method comprises determining (S101) a value of at least one energy property of a signal received from a wireless communication device (11), which signal has reflected against said surface (12) before arriving at the radio base station (10), and determining (S102), based on one or more observed signal energy property values each being associated with a characteristic of said surface, the current characteristic of said surface (12) for the determined value of said at least one energy property of the received signal.

24. 发明申请

WO2019156603A1 A METHOD, APPARATUS AND SYSTEM FOR DETERMINING A POSITION OF A WIRELESS DEVICE 审中-公开
公开(公告)号：WO2019156603A1
公开(公告)日：2019-08-15
申请号：PCT/SE2018/050123
申请日：2018-02-09
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： DWIVEDI, Satyam , ASPLUND, Henrik , MEDBO, Jonas , GUNNARSSON, Fredrik , ZAIDI, Ali , MODARRES RAZAVI, Sara
IPC分类号： G01S5/02 , H04W64/00
摘要： Methods and apparatuses for determining a position of a wireless device in a wireless communication network are provided. The method comprises obtaining (A421) a first sequence of Time Difference of Arrivals (TDOAs) at the wireless device of reference signals, which are transmitted by and used for synchronization of a first pair of network nodes; and determining (A451), based on the first sequence of TDOAs, a first relative distance. The method also comprises obtaining (A422) a second sequence of TDOAs at the wireless device of reference signals, which are transmitted by and used for synchronization of a second pair of network nodes; and determining (A452), based on the first sequence of TDOAs, a second relative distance. The method further comprises determining (A460) the position of the wireless device based on the first and second relative distances. Corresponding computer programs and computer program carriers are also disclosed.

25. 发明申请

WO2019151910A1 SELECTING A TRANSMISSION RANK IN A MULTIPLE BEAM ANTENNA SYSTEM 审中-公开
公开(公告)号：WO2019151910A1
公开(公告)日：2019-08-08
申请号：PCT/SE2018/050075
申请日：2018-02-01
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： ASPLUND, Henrik , ATHLEY, Fredrik , THURFJELL, Magnus , SIMONSSON, Arne
IPC分类号： H04B7/0417 , H04B7/0413
摘要： A method performed by a first radio node for selecting a transmission rank is provided. The radio node is capable of using at least a first antenna beam and a second antenna beam for communication with a second radio node in a wireless communication network. The radio node communicates (401) with the second radio node by using the first antenna beam and a first transmission rank. The radio node obtains (403) second radio parameters for the second antenna beam. The radio node then selects (404) a second transmission rank based on the obtained second radio parameters. The second transmission rank is to be used for communication with the second radio node in the second beam. The selection of the second transmission rank is triggered before obtaining any Rank Indicator (RI) for the second antenna beam. The radio node switches (404) from the first antenna beam to the second antenna beam, and then communicates (405) with the second radio node by using the second antenna beam and the selected second transmission rank.

26. 发明申请

WO2017196249A1 NETWORK ARCHITECTURE, METHODS, AND DEVICES FOR A WIRELESS COMMUNICATIONS NETWORK 审中-公开
标题翻译：用于无线通信网络的网络体系结构，方法和设备
公开(公告)号：WO2017196249A1
公开(公告)日：2017-11-16
申请号：PCT/SE2017/050491
申请日：2017-05-12
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： PARKVALL, Stefan , ABRAHAMSSON, Richard , AKTAS, Ismet , ALRIKSSON, Peter , ANSARI, Junaid , ASHRAF, Shehzad Ali , ASPLUND, Henrik , ATHLEY, Fredrik , AXELSSON, Håkan , AXMON, Joakim , AXNÄS, Johan , BALACHANDRAN, Kumar , BALDEMAIR, Robert , BARK, Gunnar , BERG, Jan-Erik , BERGSTRÖM, Andreas , BJÖRKEGREN, Håkan , BRAHMI, Nadia , CAPAR, Cagatay , CARLSSON, Anders , CEDERGREN, Andreas , COLDREY, Mikael , DA SILVA, Icaro L. J. , DAHLMAN, Erik , EL ESSAILI, Ali , ENGSTRÖM, Ulrika , ERICSON, Mårten , ERIKSSON, Erik , FALLGREN, Mikael , FAN, Rui , FODOR, Gabor , FRENGER, Pål , FRIDÉN, Jonas , FRÖBERG OLSSON, Jonas , FURUSKÄR, Anders , FURUSKOG, Johan , GARCIA, Virgile , GATTAMI, Ather , GUNNARSSON, Fredrik , GUSTAVSSON, Ulf , HAGERMAN, Bo , HARRYSSON, Fredrik , HE, Ning , HESSLER, Martin , HILTUNEN, Kimmo , HONG, Songnam , HUI, Dennis , HUSCHKE, Jörg , IRNICH, Tim , JACOBSSON, Sven , JALDÉN, Niklas , JÄRMYR, Simon , JIANG, Zhiyuan , JOHANSSON, Martin , JOHANSSON, Niklas , KANG, Du Ho , KARIPIDIS, Eleftherios , KARLSSON, Patrik , KHAYRALLAH, Ali S. , KILINC, Caner , KLANG, Göran N. , KRONANDER, Jonas , LANDSTRÖM, Sara , LARSSON, Christina , LI, Gen , LINCOLN, Bo , LINDBOM, Lars , LINDGREN, Robert , LINDOFF, Bengt , LINDQVIST, Fredrik , LIU, Jinhua , LOHMAR, Thorsten , LU, Qianxi , MANHOLM, Lars , MARIC, Ivana , MEDBO, Jonas , MIAO, Qingyu , MILDH, Gunnar , MOOSAVI, Reza , MÜLLER, Walter , MYHRE, Elena , NILSSON, Johan , NORRMAN, Karl , OLSSON, Bengt-Erik , PALENIUS, Torgny , PEISA, Janne , PETERSSON, Sven , PRADAS, Jose Luis , PRYTZ, Mikael , QUESETH, Olav , RAMACHANDRA, Pradeepa , RAMOS, Edgar , REIAL, Andres , RIMHAGEN, Thomas , RINGH, Emil , RUGELAND, Patrik , RUNE, Johan , SACHS, Joachim , SAHLIN, Henrik , SAXENA, Vidit , SEIFI, Nima , SELÈN, Yngve , SEMAAN, Eliane , SHARMA, Sachin , SHI, Cong , SKÖLD, Johan , STATTIN, Magnus , STJERNMAN, Anders , SUNDMAN, Dennis , SUNDSTRÖM, Lars , TERCERO VARGAS, Miurel Isabel , TIDESTAV, Claes , TOMBAZ, Sibel , TORSNER, Johan , TULLBERG, Hugo , VIKBERG, Jari , VON WRYCZA, Peter , WAGER, Stefan , WALLDEEN, Thomas , WALLÈN, Anders , WALLENTIN, Pontus , WANG, Hai , WANG HELMERSSON, Ke , WANG, Jianfeng , WANG, Yi-Pin Eric , WERNER, Karl , WIBERG, Niclas , WITTENMARK, Emma , YILMAZ, Osman Nuri Can , ZAIDI, Ali , ZHANG, Zhan , ZHANG, Zhang , ZHENG, Yanli
IPC分类号： H04W24/10 , H04W52/02
摘要： Methods performed by a wireless device, such as a user equipment, operating in a dormant mode comprise performing a measurement on each of a plurality of resources from a predetermined set of resources or demodulating and decoding information from each of a plurality of resources from a predetermined set of resources, such as a set of beams. The methods further include evaluating the measurement or the demodulated and decoded information for each of the plurality of resources against a predetermined criterion, and then discontinuing the performing and evaluating of measurements, or discontinuing the demodulating and decoding and evaluation of information, in response to determining that the predetermined criterion is met, such that one or more resources in the predetermined set of resources are neither measured nor demodulated and decoded. The methods further comprise deactivating receiver circuitry, further in response to determining that the predetermined criterion is met. The method further comprises receiving, in a first downlink subframe, a first Orthogonal Frequency-Division Multiplexing transmission formatted according to a first numerology and receiving, in a second downlink subframe, a second OFDM transmission formatted according to a second numerology, the second numerology differing from the first numerology.
摘要翻译：由工作在休眠模式的无线设备（诸如用户设备）执行的方法包括：对来自预定资源组的多个资源中的每个资源执行测量，或者对来自每个资源的信息进行解调和解码来自诸如一组波束之类的预定资源组的多个资源。所述方法进一步包括：针对预定标准评估针对多个资源中的每一个的测量结果或解调和解码的信息，然后响应于确定而中断测量的执行和评估，或中断信息的解调和解码以及评估预定标准被满足，使得预定资源组中的一个或多个资源既不被测量也不被解调和解码。该方法还包括响应于确定满足预定标准而停用接收机电路。该方法进一步包括在第一下行链路子帧中接收根据第一数字命令格式化的第一正交频分复用传输并且在第二下行链路子帧中接收根据第二数字命名格式化的第二OFDM传输，所述第二数字学不同从第一个命理学。

27. 发明申请

WO2023018362A1 NODE AND METHOD FOR ADJUSTING CHANNEL COEFFICIENTS OF A WIRELESS CHANNEL 审中-公开
公开(公告)号：WO2023018362A1
公开(公告)日：2023-02-16
申请号：PCT/SE2021/050784
申请日：2021-08-10
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： ASPLUND, Henrik , THURFJELL, Magnus , JALDÉN, Niklas
IPC分类号： H04L25/02 , H04L1/00
摘要： A method performed by a first node for adjusting channel coefficients of a wireless channel between the first node and a second node in a wireless communications network is provided. The first node obtains (203) a calculated current correlation value between 5the first channel coefficients estimated in a first time instant, and the second channel coefficients estimated in a second time instant. The second time instant is subsequent to the first time instant. The first node obtains (204) a previous correlation value calculated at a previous time instant. The first node determines (206) a phase adjustment value based on an estimated phase difference to be applied to the estimated second channel 10coefficients associated with the wireless channel. The phase difference is estimated between the current correlation value and the previous correlation value.

28. 发明申请

WO2022010389A1 METHOD AND DEVICE(S) FOR SUPPORTING CALIBRATION OF A MULTI-ANTENNA ARRAY COMPRISED IN AN ANTENNA DEVICE OPERATIVE WITH A WIRELESS COMMUNICATION NETWORK 审中-公开
公开(公告)号：WO2022010389A1
公开(公告)日：2022-01-13
申请号：PCT/SE2020/050712
申请日：2020-07-07
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： ASPLUND, Henrik , JOHANSSON, Martin , ASTELY, David , WERNER, Karl , LENNARTSON, Benny
IPC分类号： H04B17/11 , H04B7/0413 , H04B7/08
摘要： Method and one or more first devices (110; 120; 200; 201) for supporting calibration of a multi-antenna array (250; 350) comprised in a first antenna device (110; 120) operative with a wireless communication network (100). The first device(s) provide (605; 5711; 805) phase correcting information, to be used in calibration of the multi-antenna array (250; 350), based on covariances corresponding to recurrent displacement vectors (352) of the multi-antenna array (250; 350). Said covariances being based on channel estimates estimated from certain radio signals received after transmission over radio propagation channels (125) between said multi-antenna array (250; 350) of the first 10antenna device (110; 120) and one or more second antenna devices (120, 121; 110) operative with the wireless communication network (100).

29. 发明申请

WO2020030282A1 BEAMFORMING FOR RANDOM ACCESS CHANNEL (RACH) 审中-公开
公开(公告)号：WO2020030282A1
公开(公告)日：2020-02-13
申请号：PCT/EP2018/071761
申请日：2018-08-10
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： ASPLUND, Henrik , SIMONSSON, Arne , ASTELY, David
IPC分类号： H04B7/06 , H04B7/08 , H04W74/08
摘要： The present disclosure relates to a method performed by a network node for beamforming, to a network node and to a system including a network node. One aspect of the disclosure provides a method (900) comprising: obtaining (910), at the network node (800), information relating to a plurality of signals received or transmitted using a set of receiving beams or a set of transmitting beams of the network node (800), each individual beam of the set having a unique beam direction; determining a set of candidate beams for use by the network node (800) for synchronisation signal, SS, transmission or random access channel, RACH, detection; based on the obtained information, selecting one or more of the determined candidate beams; and using the selected one or more of the determined candidate beams for SS transmission or RACH detection by the network node (800).

30. 发明申请

WO2018149477A1 CODEBOOK DESIGN FOR USER-SPECIFIC PRECODING 审中-公开
公开(公告)号：WO2018149477A1
公开(公告)日：2018-08-23
申请号：PCT/EP2017/053255
申请日：2017-02-14
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： ASPLUND, Henrik , JALDÈN, Niklas , ASTELY, David , JOHANSSON, Martin
IPC分类号： H04B7/0452 , H04B7/0456 , H04B7/06
CPC分类号： H04B7/0617 , H04B7/0452 , H04B7/0456
摘要： There is provided mechanisms for determining precoding weight vectors in a codebook for user-specific precoding. A method is performed by a radio transceiver device. The method comprises obtaining information about which directions are intended to be served by the radio transceiver device and directions in which interference from transmission by the radio transceiver device should be limited. The method comprises determining one precoding weight vector for each respective one of the directions to be served based on expected power in this respective one of the directions in relation to expected power in the directions in which interference should be limited

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