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1. 发明申请

WO2022194822A1 METHODS AND APPARATUSES WITH CSI OMISSION FOR LINEAR COMBINATION PORT-SELECTION CODEBOOK 审中-公开
公开(公告)号：WO2022194822A1
公开(公告)日：2022-09-22
申请号：PCT/EP2022/056620
申请日：2022-03-15
申请人： FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： RAMIREDDY, Venkatesh , GROSSMANN, Marcus , LANDMANN, Markus
IPC分类号： H04B7/0417 , H04B7/0456 , H04B7/06
摘要： CSI report by a UE : determining (402) based on a received CSI report (401) configuration, a number of precoder coefficients for Rank Index (Rl) transmission layers of a precoder vector or matrix; grouping (403) the precoder coefficients of the Rl transmission layers into at least two coefficient subsets, each coefficient subset comprising a plurality of precoder coefficients; assigning (404) a certain ordering to said at least two coefficient subsets and to the precoder coefficients within each coefficient subset; dividing (405) said at least two coefficient subsets into two or more CSI groups having associated priority levels; generating (406) a CSI report comprising a CSI part 1 and a CSI part 2, wherein the CSI part 1 has a fixed payload size and comprises information indicating the size of the payload of the CSI part 2, wherein the CSI part 2 includes the precoder coefficients of at least one of the two CSI groups.

2. 发明申请

WO2021224283A1 METHODS AND APPARATUSES FOR ENHANCING THE RELIABILITY AND PERFORMANCE OF THE PHYSICAL DOWNLINK CONTROL CHANNEL IN A WIRELESS COMMUNICATIONS NETWORK 审中-公开
公开(公告)号：WO2021224283A1
公开(公告)日：2021-11-11
申请号：PCT/EP2021/061760
申请日：2021-05-04
申请人： FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： GROSSMANN, Marcus , LANDMANN, Markus , VARATHARAAJAN, Sutharshun
IPC分类号： H04L5/00
摘要： The embodiment of the present disclosure relates to methods and apparatuses for enhancing the reliability and performance of the PDCCH in a wireless network. The method performed by a UE comprises: receiving (801) a configuration of one or more search space sets for the PDCCH, each search space set comprises a number of PDCCH candidates and each PDCCH candidate is made up of a number of resource elements, the UE monitors for one or more DCIs of a specific format as indicated in the configured PDCCH candidates; (802) wherein a configuration or an indication of an association of one or more search space sets with a search space set pool is provided to UE, and at least two PDCCH candidates from one or more search space sets are associated with the same DCI content; or an association of two or more TCI states with a single CORESET is obtained from the network node; and applying (803) the configuration(s) or indication of the association for receiving one or more PDCCH(s) on the search space sets.

3. 发明申请

WO2020126905A1 METHODS AND APPARATUSES FOR FEEDBACK REPORTING IN A WIRELESS COMMUNICATIONS NETWORK 审中-公开
公开(公告)号：WO2020126905A1
公开(公告)日：2020-06-25
申请号：PCT/EP2019/085074
申请日：2019-12-13
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： LANDMANN, Markus , GROSSMANN, Marcus , VENKATESH, Ramireddy
IPC分类号： H04B7/0456
摘要： The embodiments herein relate to a method performed by a UE (900) for providing a channel state information (CSI) feedback in a wireless communication system including at least the UE and a gNB (800) or a radio network node. The UE (900) is operative, by means of e.g. the processor (910) to: estimate the MIMO channel between the gNB (800) and the UE (910) based on received DL reference signals for the configured resource blocks. The UE (900) is further operative to calculate, based on a performance metric, a precoder matrix, for a number of antenna ports of the gNB (800) and configured subbands, the precoder matrix being based on two codebooks and a set of combination coefficients for complex scaling/combining one or more of vectors selected from a first codebook and a second codebook, and the UE (900) is operative to report a CSI feedback and/or a PMI and/or a PMI/RI, to the gNB (800), used to indicate the precoder matrix for the configured antenna ports and resource blocks.

4. 发明申请

WO2019243449A2 METHOD AND MEASUREMENT ENVIRONMENT, APPARATUS TO BE TESTED 审中-公开
公开(公告)号：WO2019243449A2
公开(公告)日：2019-12-26
申请号：PCT/EP2019/066266
申请日：2019-06-19
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： HAUSTEIN, Thomas , LEATHER, Paul Simon Holt , ASKAR, Ramez , RASCHKOWSKI, Leszek , GROSSMANN, Marcus , LANDMANN, Markus
IPC分类号： G01R29/08
摘要： A method for evaluating an apparatus having at least one antenna array, the apparatus configured for forming a plurality of communication beam patterns using the antenna array, comprises positioning of the apparatus in a measurement environment or moving/switching the probe/link antenna(s) of the measurement environment around the apparatus adapted to measure beam patterns and controlling the apparatus so as to form a predefined beam pattern of the plurality of communication beam patterns. The method comprises measuring the predefined beam pattern using the measurement environment and/or the apparatus.

5. 发明申请

WO2019229152A1 DOPPLER-DELAY CODEBOOK-BASED PRECODING AND CSI REPORTING FOR WIRELESS COMMUNICATIONS SYSTEMS 审中-公开
公开(公告)号：WO2019229152A1
公开(公告)日：2019-12-05
申请号：PCT/EP2019/064024
申请日：2019-05-29
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： GROSSMANN, Marcus , RAMIREDDY, Venkatesh , LANDMANN, Markus , VARATHARAAJAN, Sutharshun
IPC分类号： H04B7/0456
摘要： A communication device for providing a channel state information, CSI, feedback in a wireless communication system includes a transceiver to receive, from a transmitter a radio signal via a time-variant, frequency-selective MIMO channel, the radio signal including downlink reference signals according to a reference signal configuration comprising a number of antenna ports, and downlink signals comprising the reference signal configuration; and a processor. The processor estimates an explicit CSI in the frequency domain using measurements on the downlink reference signals on the radio channel, the downlink reference signals provided over a certain observation time, selects, based on a performance metric, a Doppler-delay precoder matrix (W) for a composite Doppler-delay-beam three-stage precoder, the Doppler-delay-beam three-stage precoder being based on one or more codebooks, the one or more codebooks including one or more transmit-side spatial beam components of the composite Doppler-delay-beam three-stage precoder, one or more delay components of the composite Doppler-delay-beam three-stage precoder, and one or more Doppler-frequency components of the composite Doppler-delay-beam three-stage precoder, calculates either one or more of a channel quality indicator, CQI, and/or a precoder matrix indicator, PMI, and/or a rank indicator, Rl, using the explicit CSI and the composite Doppler-delay-beam three-stage precoder with the selected Doppler-delay-beam precoder matrix (l W ), and reports to the transmitter the CSI feedback including either one or more of the CQI, and/or the PMI and/or the Rl, wherein the PMI and Rl are used to indicate the Doppler-delay-beam three-stage composite precoder matrix for the configured antenna ports.

6. 发明申请

WO2018228707A1 TRANSMITTER, RECEIVER, WIRELESS COMMUNICATION NETWORK AND METHODS FOR OPERATING THE SAME 审中-公开
公开(公告)号：WO2018228707A1
公开(公告)日：2018-12-20
申请号：PCT/EP2017/064828
申请日：2017-06-16
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： VARATHARAAJAN, Sutharshun , GROSSMANN, Marcus , LANDMANN, Markus , THIELE, Lars , KURRAS, Martin , HAUSTEIN, Thomas , WIRTH, Thomas , RASCHKOWSKI, Leszek
IPC分类号： H04B7/04 , H04B7/06
摘要： A transmitter comprises a 3-dimensional antenna array comprising a plurality of antenna elements, each antenna element having a radiation pattern, wherein the radiation patterns overlap with respect to each other. The plurality of antenna elements is adapted for a coherent wireless communication in a wireless communication system. The 3D-antenna array comprises a first and a second and a third antenna element spanning a 2- dimensional antenna plane, and comprising a fourth antenna element being arranged outside the 2-dimensional antenna plane; or the 3D-antenna array comprises a first antenna element being configured to direct a transmitted signal into a first direction, and comprising a second antenna element being configured to direct a transmitted signal into a second direction and not into the first direction. The transmitter further comprises a precoder connected through the 3D-antenna array, to form one or more transmit beams and/or receive beams with the 3D-antenna array. The beams point in directions of interest. The precoder comprises a precoder matrix that is based on a beam-set matrix and a selection matrix and a power allocation matrix comprising power values that indicate a power to be allocated to the antenna elements of the 3D-antenna array. The power allocation matrix is adapted to selectively adjust the transmit power of individual antenna elements.

7. 发明申请

WO2018141869A1 BEAMFORMING CODEBOOK ADAPTION TO ANTENNA ARRAY IMPERFECTIONS 审中-公开
公开(公告)号：WO2018141869A1
公开(公告)日：2018-08-09
申请号：PCT/EP2018/052561
申请日：2018-02-01
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： VARATHARAAJAN, Sutharshun , LANDMANN, Markus , GROSSMANN, Marcus
IPC分类号： H04B7/0456 , H01Q3/26 , H04B7/06 , H04B17/12
摘要： A transmitter includes an antenna array (202, 304) having a plurality of antennas for a wireless communication with one or more receivers, and a precoder (204) connected to the antenna array (202, 304). The precoder (204) applies a set of beamforming weights to the antenna array (202, 304). The set of beamforming weights is selected from a codebook (212) to form by the antenna array (202, 304) one or more transmit/receive beams or nulls pointing in selected directions. The codebook (212) includes a plurality of sets of beamforming weights for a plurality of directions. The beamforming weights in the codebook (212) are based on a first antenna array response matrix (Ã(φ, θ)), the first antenna array response matrix (Ã(φ, θ)) defined by a second antenna array response matrix (A(φ, θ)) and one or more transformation matrices (K, K q ). The first antenna array response matrix (Ã(φ, θ)) contains, for a plurality of directions, first array response vectors (ã((φ m , θ n )) of the antenna array (202, 304), the second antenna array response matrix (Α(φ, θ)) contains, for one or more of the plurality of directions, second array response vectors of the antenna array (202, 304), the second array response vectors determined using a model of the antenna array (202, 304), and the one or more transformation matrices (K, K q ) describing one or more characteristics of the antenna array (202, 304).

8. 发明申请

WO2018069208A1 USER EQUIPMENT LOCALIZATION IN A MOBILE COMMUNICATION NETWORK 审中-公开
标题翻译：用户设备在移动通信网络中的本地化
公开(公告)号：WO2018069208A1
公开(公告)日：2018-04-19
申请号：PCT/EP2017/075599
申请日：2017-10-09
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： GROSSMANN, Marcus , LANDMANN, Markus , HADASCHIK, Niels
IPC分类号： G01S5/02 , G01S5/08 , G01S5/12 , G01S1/04
摘要： A receiver (UE), which is located in a spatial region of interest (1 18) served by a transmitter (eNB 1 -eNB 3 ) of a wireless communication network, receives a radio signal from at least one transmitter (eNB 1 -eNB 3 ) of the wireless communication network, and the radio signal has a plurality of position reference signal (PRS) sequences. Each PRS sequence has associated therewith a different PRS sequence identifier, and each PRS sequence is send using a different beam cone (116) of the transmitter (eNB 1 -eNB 3 ). The beam cones (116) of the transmitter (eNB 1 -eNB 3 ) for sending the plurality of PRS sequences are directed to the spatial region of interest (118). The receiver (UE) processes the radio signal to estimate a time of arrival (TOA) of each PRS sequence and to obtain for each PRS sequence the associated PRS sequence identifier. A position of the receiver (UE) is estimated using the times of arrival and the obtained PRS sequence identifiers.
摘要翻译：位于由发射机（eNB 1 -eNB 3）服务的空间感兴趣区域（118）中的接收机（UE） >），从无线通信网络的至少一个发射机（eNB 1 -eNB 3）接收无线电信号，并且无线电信号具有多个位置参考信号（PRS）序列。每个PRS序列具有与其相关联的不同PRS序列标识符，并且每个PRS序列是使用发射机（eNB 1 -eNB 3）的不同波束锥（116）发送的。。用于发送多个PRS序列的发射机（eNB 1 -eNB 3 3）的波束锥（116）被引导到感兴趣的空间区域（118）。接收器（UE）处理无线电信号以估计每个PRS序列的到达时间（TOA）并且针对每个PRS序列获得相关联的PRS序列标识符。使用到达时间和获得的PRS序列标识符来估计接收器（UE）的位置。

9. 发明申请

WO2021156388A1 METHODS AND APPARATUSES FOR PHYSICAL UPLINK SHARED CHANNEL BEAMFORMING AND PATHLOSS REFERENCE INDICATION IN A WIRELESS COMMUNICATIONS NETWORK 审中-公开
公开(公告)号：WO2021156388A1
公开(公告)日：2021-08-12
申请号：PCT/EP2021/052707
申请日：2021-02-04
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： GROSSMANN, Marcus , LANDMANN, Markus , VARATHARAAJAN, Sutharshun
IPC分类号： H04B7/024 , H04B7/06 , H04L5/00 , H04W72/04
摘要： The embodiment of the present disclosure relates to methods and apparatuses for PUSCH beamforming and pathloss reference indication in a wireless communications network. A method performed by a user equipment, UE, (900) comprises: receiving from a network node, a PDCCH transmission on a control resource set or a signaling via a higher layer, a higher layer grant, that schedules one or more PUSCH transmission occasions, and receiving (401), from a network node, via a higher layer, one or more information elements, IEs, SRI-PUSCH- PowerControl IEs, which provide power control settings for the transmission of at least one PUSCH, wherein each SRI-PUSCH-PowerControl IE indicates or maps to at least one pathloss reference RS; obtaining (402) a first pathloss reference RS for a first PUSCH transmission scheduled by said PDCCH or higher layer signaling from a first SRI-PUSCH- PowerControl IE; and obtaining (403) a second pathloss reference RS for a second PUSCH transmission scheduled by said PDCCH or higher layer signaling from a second SRI-PUSCH- PowerControl IE.

10. 发明申请

WO2020211932A1 APPARATUS AND METHOD FOR THE CALIBRATION OF OVER-THE-AIR (OTA) COMMUNICATION TEST SETUPS 审中-公开
公开(公告)号：WO2020211932A1
公开(公告)日：2020-10-22
申请号：PCT/EP2019/059857
申请日：2019-04-16
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： HAUSTEIN, Thomas , LANDMANN, Markus , GROSSMANN, Marcus , LEATHER, Paul Simon Holt , RASCHKOWSKI, Leszek , ASKAR, Ramez
IPC分类号： H04B17/21 , H04B17/24
摘要： The invention relates to an apparatus (100) for testing a wireless device (105), wherein the apparatus (100) is configured to determine a calibration information on the basis of a signal which is wirelessly transmitted by the apparatus (100) during a transmission of test information to the wireless device (105) under test or which is wirelessly transmitted by the wireless device (105) during a transmission of test Information from the wireless device (105) to the apparatus (100). The apparatus (100) is configured to adjust a signal generation or a signal processing on the basis of the calibration information.

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