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1. 发明授权

US11381445B2 Network architecture, methods, and devices for a wireless communications network 有权
公开(公告)号：US11381445B2
公开(公告)日：2022-07-05
申请号：US16414490
申请日：2019-05-16
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Stefan Parkvall , Janne Peisa , Gunnar Mildh , Robert Baldemair , Stefan Wager , Jonas Kronander , Karl Werner , Richard Abrahamsson , Ismet Aktas , Peter Alriksson , Junaid Ansari , Shehzad Ali Ashraf , Henrik Asplund , Fredrik Athley , Håkan Axelsson , Joakim Axmon , Johan Axnäs , Kumar Balachandran , Gunnar Bark , Jan-Erik Berg , Andreas Bergström , Håkan Björkegren , Nadia Brahmi , Cagatay Capar , Anders Carlsson , Andreas Cedergren , Mikael Coldrey , Icaro L. J. da Silva , Erik Dahlman , Ali El Essaili , Ulrika Engström , Mårten Ericson , Erik Eriksson , Mikael Fallgren , Rui Fan , Gabor Fodor , Pål Frenger , Jonas Fridén , Jonas Fröberg Olsson , Anders Furuskär , Johan Furuskog , Virgile Garcia , Ather Gattami , Fredrik Gunnarsson , Ulf Gustavsson , Bo Hagerman , Fredrik Harrysson , Ning He , Martin Hessler , Kimmo Hiltunen , Songnam Hong , Dennis Hui , Jörg Huschke , Tim Irnich , Sven Jacobsson , Niklas Jaldén , Simon Järmyr , Zhiyuan Jiang , Martin Johansson , Niklas Johansson , Du Ho Kang , Eleftherios Karipidis , Patrik Karlsson , Ali S. Khayrallah , Caner Kilinc , Göran N. Klang , Sara Landström , Christina Larsson , Gen Li , Bo Lincoln , Lars Lindbom , Robert Lindgren , Bengt Lindoff , Fredrik Lindqvist , Jinhua Liu , Thorsten Lohmar , Qianxi Lu , Lars Manholm , Ivana Maric , Jonas Medbo , Qingyu Miao , Reza Moosavi , Walter Müller , Elena Myhre , Johan Nilsson , Karl Norrman , Bengt-Erik Olsson , Torgny Palenius , Sven Petersson , Jose Luis Pradas , Mikael Prytz , Olav Queseth , Pradeepa Ramachandra , Edgar Ramos , Andres Reial , Thomas Rimhagen , Emil Ringh , Patrik Rugeland , Johan Rune , Joachim Sachs , Henrik Sahlin , Vidit Saxena , Nima Seifi , Yngve Selén , Eliane Semaan , Sachin Sharma , Cong Shi , Johan Sköld , Magnus Stattin , Anders Stjernman , Dennis Sundman , Lars Sundström , Miurel Isabel Tercero Vargas , Claes Tidestav , Sibel Tombaz , Johan Torsner , Hugo Tullberg , Jari Vikberg , Peter Von Wrycza , Thomas Walldeen , Anders Wallén , Pontus Wallentin , Hai Wang , Ke Wang Helmersson , Jianfeng Wang , Yi-Pin Eric Wang , Niclas Wiberg , Emma Wittenmark , Osman Nuri Can Yilmaz , Ali Zaidi , Zhan Zhang , Zhang Zhang , Yanli Zheng
IPC分类号： H04W52/02 , H04L41/0233 , H04B7/06 , H04W24/10 , H04J11/00 , H04L41/0816 , H04W28/02 , H04W16/28
摘要： Methods and apparatus in a fifth-generation wireless communications network, including an example method, in a wireless device, that includes determining a reporting quality threshold for a parameter related to channel state information (CSI); performing a measurement for each of a plurality of beams from a first predetermined set of beams for evaluation; evaluating the measurement for each of the plurality of beams against the reporting quality threshold; discontinuing the performing and evaluating of measurements in response to determining that the reporting quality threshold is met for one of the beams, such that one or more beams in the first predetermined set of beams are not measured and evaluated; and reporting, to the wireless communications network, CSI for the one of the beams.

2. 发明授权

US11219052B2 SR-BSR and resource management 有权
公开(公告)号：US11219052B2
公开(公告)日：2022-01-04
申请号：US16610762
申请日：2018-05-04
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Zhan Zhang , Cecilia Eklöf , Laetitia Falconetti , Robert Karlsson
IPC分类号： H04W72/12 , H04W72/14
摘要： According to the present disclosure, behaviors of User Equipment (UE) and base station (BS) pertinent to Scheduling Request (SR) and/or Buffer Status Report (BSR) as well as resource management in short Transmission Time Interval (sTTI) relevant scenarios are discussed. UE may firstly determine if the SR is triggered by a buffer status change of a delay-critical data which needs a sTTI. If so, UE will send the SR to BS on a first type of uplink control channel designed for sTTI. Otherwise, UE will send the SR to the base station on a second type of uplink control channel designed for legacy TTI.

3. 发明授权

US11159214B2 Wireless communications system, a radio network node, a machine learning UNT and methods therein for transmission of a downlink signal in a wireless communications network supporting beamforming 有权
公开(公告)号：US11159214B2
公开(公告)日：2021-10-26
申请号：US16758254
申请日：2017-12-22
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Huaisong Zhu , Hugo Tullberg , Zhan Zhang
IPC分类号： H04B7/06 , H04B7/024
摘要： A wireless communications system (10) and a method therein for transmission of a downlink signal in a wireless communications network (100) supporting beamforming. The system estimates uplink channel information for a radio link from a wireless device (120) to a radio network node (110). Further, the system obtains downlink beamforming information related to the estimated uplink channel information from a machine learning unit (300). The machine learning unit comprises relationships between beamforming information and uplink channel information determined based on stored pairs of reported downlink beamforming information and measured uplink channel information. The obtained downlink beamforming information is applicable for the radio cell sector. Furthermore, the system transmits, towards the wireless device (120), a beamformed downlink signal using the obtained downlink beamforming information.

4. 发明申请

US20200266922A1 SEMI-BLIND DETECTION OF URLLC IN PUNCTURED eMBB 审中-公开
公开(公告)号：US20200266922A1
公开(公告)日：2020-08-20
申请号：US16496995
申请日：2017-03-24
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Zhan Zhang , Shehzad Ali Ashraf , Yufei Blankenship , Caner Kilinc , Zhenhua Zou
IPC分类号： H04L1/00
摘要： The proposed embodiment provides an efficient way to implicitly detect at the receiver the puncturing information (i. e. time/frequency resources, MCS, TBS etc.) of the Ultra Reliable Low Latency Communication (URLLC) in the punctured Enhanced Mobile Broadband (eMBB) area. The performance of eMBB traffic can be improved by implicitly providing the puncturing information without any additional signaling or indications (e.g. does not require any additional bits).

5. 发明授权

US10673699B2 Methods and apparatus in a wireless communications network 审中-公开
公开(公告)号：US10673699B2
公开(公告)日：2020-06-02
申请号：US15579981
申请日：2017-10-19
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Mikael Wittberg , Torsten Dudda , Qianxi Lu , Zhan Zhang
IPC分类号： H04L12/24 , H04L1/08 , H04W16/28 , H04W72/04 , H04W80/02 , H04W88/02 , H04W88/10
摘要： There is provided a method in a user equipment for a wireless communications network, comprising: receiving a configuration message from a base station for the wireless communications network, the configuration message indicating that data to be transmitted between the user equipment and the wireless communications network is to be duplicated; and responsive to receipt of the configuration message, transmitting a first data unit and a second data unit to the wireless communications network, or receiving a first data unit and a second data unit from the wireless communications network; wherein the second data unit is a duplicate of the first data unit, and wherein the first data unit is transmitted or received using first radio resources, and the second data unit is transmitted using second radio resources that are different than the first radio resources.

6. 发明申请

US20200076517A1 ANTENNA CALIBRATION FOR MULTIPLE INPUT MULTIPLE OUTPUT 审中-公开
公开(公告)号：US20200076517A1
公开(公告)日：2020-03-05
申请号：US16467152
申请日：2016-12-23
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Huaisong Zhu , Jianfeng Wang , Qianxi Lu , Zhan Zhang
IPC分类号： H04B17/21 , H01Q3/26 , H04B17/12 , H04B17/14 , H04B17/309
摘要： A method for antenna calibration is proposed. The method may comprise setting a first control unit to a first operation mode. The first control unit may be located on a first antenna path of a first antenna array which has a plurality of antennas. Under the first operation mode of the first control unit, a calibration signal for the first antenna path can be isolated from interference. The method may further comprise obtaining a measurement based at least partly on the calibration signal for the first antenna path. The method may further comprise performing antenna calibration for the plurality of antennas of the first antenna array based at least partly on the obtained measurement.

7. 发明申请

US20190223065A1 Methods and Devices for Reference Signal Transmission and Measurement 审中-公开
公开(公告)号：US20190223065A1
公开(公告)日：2019-07-18
申请号：US15579998
申请日：2017-09-29
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Qianxi Lu , Jianfeng Wang , Zhan Zhang , Huaisong Zhu
IPC分类号： H04W36/00 , H04W72/04 , H04L5/00
CPC分类号： H04W36/0058 , H04L5/0048 , H04W24/10 , H04W36/0072 , H04W36/0088 , H04W72/0413 , H04W72/0446
摘要： Embodiments of the present disclosure relate to methods and devices for reference signal transmission and measurement. In example embodiments, according to a method implemented in a network device is provided, a report related to a measurement of a first reference signal is received from a terminal device. The first reference signal has been sent from the network device to the terminal device according to a first periodicity. Then an indication of a second periodicity for receiving a second reference signal is sent to the terminal device based on the report. The second reference signal is associated with the first reference signal.

8. 发明授权

US10292122B2 Method and access point for maintaining synchronization among access points in radio access network 有权
公开(公告)号：US10292122B2
公开(公告)日：2019-05-14
申请号：US15512915
申请日：2014-10-11
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Jinhua Liu , Gen Li , Zhan Zhang
IPC分类号： H04W72/04 , H04W84/12 , H04W56/00 , H04L5/00
摘要： The present disclosure provides a method implemented in an access point, AP, for maintaining synchronization among APs in a radio access network as well as the AP. The method comprises at least one of a transmission step and a reception step. At the transmission step, a first inter-AP synchronization signal is transmitted to a first neighboring AP, which synchronizes to the AP, at a transmission resource indicated by a first synchronization signal transmission/reception pattern associated with the AP, when the first neighboring AP receives the first inter-AP synchronization signal at a reception resource indicated by a second synchronization signal transmission/reception pattern associated with the first neighboring AP, wherein the reception resource indicated by the second synchronization signal transmission/reception pattern overlaps with the transmission resource indicated by the first synchronization signal transmission/reception pattern. At the reception step, a second inter-AP synchronization signal is received from a second neighboring AP, to which the AP synchronizes, at a reception resource indicated by the first synchronization signal transmission/reception pattern, when the second neighboring AP transmits the second inter-AP synchronization signal at a transmission resource indicated by a third synchronization signal transmission/reception pattern associated with the second neighboring AP, wherein the reception resource indicated by the first synchronization signal transmission/reception pattern overlaps with the transmission resource indicated by the third synchronization signal transmission/reception pattern.

9. 发明申请

US20190037576A1 Interference Cancellation Methods used in Base Stations and User Equipments 审中-公开
公开(公告)号：US20190037576A1
公开(公告)日：2019-01-31
申请号：US16149952
申请日：2018-10-02
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Shaohua Li , Xinghua Song , Jianfeng Wang , Haochuan Zhang , Zhan Zhang , Zhang Zhang , Zhenshan Zhao
IPC分类号： H04W72/08 , H04W72/04 , H04J11/00 , H04W28/18
摘要： The present disclosure relates to a method performed by a BS for facilitating IC at a UE and an associated BS. The method includes predefining one or more sets of transmission parameters, where one or more of the transmission parameters in the one or more sets are constrained to take values from respective reduced sets of values out of the values available for the respective one or more transmission parameters, each set of the one or more sets of transmission parameters being identifiable by a unique indication. The method further includes configuring a transmission of the BS, which is to interfere downlink transmissions to the UE from a serving BS of the UE, by using one of the predefined one or more sets of transmission parameters. The present disclosure also relates to a method in a UE for IC and an associated UE.

10. 发明授权

US10021719B2 Method and apparatus for data transmission 有权
公开(公告)号：US10021719B2
公开(公告)日：2018-07-10
申请号：US15112745
申请日：2015-10-09
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Jinhua Liu , Zhan Zhang
IPC分类号： H04J3/00 , H04W74/02 , H04W72/12 , H04W72/04 , H04W48/08
CPC分类号： H04W74/02 , H04W48/08 , H04W56/00 , H04W72/0446 , H04W72/121
摘要： Embodiments of the present disclosure provide a method at a communications device of a first type that is operable on both a licensed carrier and an unlicensed carrier. The method comprises performing channel sensing on the unlicensed carrier, at different sensing slots within a time duration, for respective links directed to at least two communications devices of a second type that are operable on both the licensed carrier and the unlicensed carrier. The time duration is specified as a portion of a subframe in a frame structure used on the licensed carrier. The method also comprise scheduling transmission on a channel that is determined to be available based on corresponding channel sensing. Correspondingly, there is also provided an apparatus embodied at or as at least part of a communications device of a first type, e.g. a base station that is operable on both a licensed carrier and an unlicensed carrier.

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