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1. 发明申请

WO2021115602A1 SERVER FOR ISSUING A DIGITAL CERTIFICATE AND DEVICE FOR VERIFYING AUTHENTICATION 审中-公开
公开(公告)号：WO2021115602A1
公开(公告)日：2021-06-17
申请号：PCT/EP2019/084904
申请日：2019-12-12
申请人： HUAWEI TECHNOLOGIES DUESSELDORF GMBH
发明人： LIAO, Lijun , LI, Yong , DUAN, Li , HAN, Qing
IPC分类号： H04L9/32
摘要： A Certification Authority (CA) server for issuing a digital certificate generates a first digital certificate associated with a first public key of the device and calculates an update factor for the first private key. Based on the first public key, the calculated update factor and a predefined public system parameter the CA server calculates a second public key for a determined time period for the device. The CA server generates a second digital certificate valid at the determined time period and associated with the second public key and sends the second digital certificate to the device. A device may calculate an update factor for a stored first private key, calculates a second private key based on the calculated update factor and the first private key, receive from the CA server a second digital certificate associated with a second public key, and validate the device based on the second digital certificate.

2. 发明申请

WO2021078387A1 POST-RECEPTION SYNCHRONIZATION IN A CONTINUOUS VARIABLE QUANTUM KEY DISTRIBUTION (CV-QKD) SYSTEM 审中-公开
公开(公告)号：WO2021078387A1
公开(公告)日：2021-04-29
申请号：PCT/EP2019/079062
申请日：2019-10-24
申请人： HUAWEI TECHNOLOGIES DUESSELDORF GMBH
发明人： BRUNNER, Hans
IPC分类号： H04L9/08 , H04B10/70
摘要： A transmitter CV-QKD device 'A' stores and transmits a quantum signal over a communication channel. The quantum signal has a first phase, a first central frequency, a first pulse shape, and a first bandwidth. A receiver CV-QKD device 'B' receives the quantum signal via the communication channel and via a reception band of the receiver CV-QKD device 'B'. The reception band has a second central frequency and a second bandwidth. The second central frequency is offset from the first central frequency by a frequency shift caused by the communication channel. The received quantum signal has a second phase and a second pulse shape. The second phase is offset from the first phase by a phase shift caused by the communication channel and the second central frequency is offset from the first central frequency by a frequency shift caused by the communication channel. The second pulse shape is offset from the first pulse shape by a delay caused by the communication channel. The receiver CV-QKD device 'B' determines a quantum communication channel based on the phase shift, the frequency shift, the delay, and a third bandwidth resulting from an overlap between the first bandwidth around the first central frequency and the second bandwidth around the second central frequency. The receiver CV-QKD device 'B' communicates the determined quantum communication channel to the transmitter CV-QKD device 'A' over an authenticated communication channel. The transmitter CV-QKD device 'A' obtains a modified quantum signal by modifying the stored quantum signal based on the determined quantum communication channel; and generating, by the transmitter CV-QKD device 'A' and the receiver CV-QKD device 'B', a secret key using the modified quantum signal and the received quantum signal.

3. 发明申请

WO2021028042A1 DEVICE AND METHOD FOR COORDINATED BEAMFORMING 审中-公开
公开(公告)号：WO2021028042A1
公开(公告)日：2021-02-18
申请号：PCT/EP2019/071837
申请日：2019-08-14
申请人： HUAWEI TECHNOLOGIES DUESSELDORF GMBH
发明人： BAZZI, Samer , XU, Wen , MANOLAKIS, Konstantinos
IPC分类号： H04B7/024
摘要： The present invention relates to a coordinated beamforming method, and in particular, to a limited information exchanging method for mitigating inter-cell interference. To this end, the invention proposes a first serving network node serving a first receiving network node in a first cell of a mobile network, i.e. a multi-cell system. The first serving network node is configured to obtain, from the first receiving network node, a first statistical channel information of a channel from a second serving network node in the mobile network; exchange with the first receiving network node indicator information identifying the first statistical channel information; and provide the first statistical channel information to the second serving network node. Accordingly, the first receiving network node is configured to provide, to the first serving network node, a first statistical channel information of a channel from the second serving network node in the mobile network; and exchange with the first serving network node indicator information identifying the first statistical channel information. Thereby, limited/minimal channel information is exchanged among entities in the multi-cell system, which allows the BS to perform interference-aware precoding/beamforming. Based on the obtained information, precoding/beamforming is performed at each BS in a way that inter-cell interference is mitigated by steering the precoding/beamforming vectors in the adjacent/interfering cell accordingly.

4. 发明申请

WO2020211950A1 EFFICIENT QUANTUM-KEY-SECURED PASSIVE OPTICAL POINT TO MULTIPOINT NETWORK 审中-公开
公开(公告)号：WO2020211950A1
公开(公告)日：2020-10-22
申请号：PCT/EP2019/060164
申请日：2019-04-18
申请人： HUAWEI TECHNOLOGIES DUESSELDORF GMBH
发明人： HILLERKUSS, David , COMANDAR, Lucian , FUNG, Fred, Chi, Hang , VALADEZ, Ivan Nicolas Cano
IPC分类号： H04L9/08
摘要： The present disclosure relates to a passive optical network transmitter and receiver for quantum key distribution and in particular, to an efficient implementations thereof. A transmitter includes an optical circuitry including at least one optical component shared for modulating a classical signal and a quantum signal, a switch configured to control a time 5 division for transmitting the classical signal and the quantum signal, and an optical output for transmission of the time division multiplexed classical signal and quantum signal. Correspondingly, a receiver comprises an optical input for receiving a signal including a classical signal and a quantum signal in a time division multiplex from an optical path, a switch configured to control a time division for reception of the classical signal and the 10 quantum signal, and an optical circuitry including at least one optical component shared for demodulating the classical signal and the quantum signal.

5. 发明申请

WO2020177848A1 CALIBRATING TRUSTED NOISE IN QUANTUM KEY DISTRIBUTION 审中-公开
公开(公告)号：WO2020177848A1
公开(公告)日：2020-09-10
申请号：PCT/EP2019/055267
申请日：2019-03-04
申请人： HUAWEI TECHNOLOGIES DUESSELDORF GMBH
发明人： FUNG, Fred, Chi, Hang , MIKROULIS, Spiros
IPC分类号： H04L9/08
摘要： A receiver configured to operate in a quantum key distribution system is provided. The receiver comprises a detector to generate an electrical signal from a received optical signal, an electric circuitry operable to process the electrical signal, a controller operable to either couple the electric circuitry and the detector or to decouple the electric circuitry from the detector, and a noise estimator for estimating, when the electric circuitry is decoupled from the detector, the noise of the electric circuitry.

6. 发明申请

WO2019197037A1 MULTI-LEVEL ENCODER AND DECODER WITH SHAPING AND METHODS FOR MULTI-LEVEL ENCODING AND DECODING WITH SHAPING 审中-公开
公开(公告)号：WO2019197037A1
公开(公告)日：2019-10-17
申请号：PCT/EP2018/059538
申请日：2018-04-13
申请人： HUAWEI TECHNOLOGIES DUESSELDORF GMBH
发明人： ISCAN, Onurcan , BOEHNKE, Ronald , XU, Wen
IPC分类号： H04L1/00 , H04L27/34
摘要： An encoder is proposed for encoding a message into channel input symbols. The encoder is configured to divide the message for obtaining message parts, encode the message parts into encoded parts such that at least one encoded part has a non-uniform distribution, map the encoded parts into the channel input symbols. A channel input symbol is based on a plurality of encoded parts.

7. 发明申请

WO2019015742A1 APPARATUS AND METHOD FOR ENCODING A MESSAGE HAVING A TARGET PROBABILITY DISTRIBUTION OF CODE SYMBOLS 审中-公开
公开(公告)号：WO2019015742A1
公开(公告)日：2019-01-24
申请号：PCT/EP2017/068034
申请日：2017-07-17
申请人： HUAWEI TECHNOLOGIES DUESSELDORF GMBH
发明人： ISCAN, Onurcan , BOEHNKE, Ronald , XU, Wen
IPC分类号： H04L1/00
摘要： The present invention relates to a communication apparatus (110) for encoding a message to be transmitted over a communication channel, wherein the communication apparatus (110) comprises a precoder (102) configured to generate on the basis of the message and a channel code a pre-coded message, and a channel encoder (104) configured to encode the pre-coded message based on the channel code into a code word, wherein the code word comprises a plurality of bits and/or symbols which have a probability distribution, wherein the precoder (102) is configured to generate the pre-coded message such that the channel encoder (104) generates the plurality of bits and/or symbols with the probability distribution matching a target probability distribution.

8. 发明申请

WO2018184688A1 TRANSMITTER AND RECEIVER COMMUNICATION DEVICE FOR A WIRELESS COMMUNICATION NETWORK 审中-公开
公开(公告)号：WO2018184688A1
公开(公告)日：2018-10-11
申请号：PCT/EP2017/058351
申请日：2017-04-07
申请人： HUAWEI TECHNOLOGIES DUESSELDORF GMBH
发明人： MANOLAKIS, Konstantinos , XU, Wen
IPC分类号： H04W56/00
摘要： The invention relates to a transmitter communication device (110) configured for communication with a receiver communication device (120) in a wireless communication network (100). The transmitter communication device (110) comprises a processor (111) configured to provide basic synchronization information by generating a communication frame (115) comprising at least a first signal and a second signal for synchronising the receiver communication device (120). The processor (111) is further configured to provide additional synchronization information on the basis of the first and/or the second signal by: arranging at least the first signal and the second signal in a pre-defined configuration in the communication frame (115); and/or by selecting the first and the second signal from a set of pre-defined synchronization signals that differ in a generating code. Moreover, the invention relates to a corresponding receiver communication device (120).

9. 发明申请

WO2018133939A1 APPARATUS AND METHODS FOR PROBABILITY SHAPING OPERATIONS 审中-公开
公开(公告)号：WO2018133939A1
公开(公告)日：2018-07-26
申请号：PCT/EP2017/051070
申请日：2017-01-19
申请人： HUAWEI TECHNOLOGIES DUESSELDORF GMBH
发明人： ISCAN, Onurcan , XU, Wen
IPC分类号： H04L1/00 , H04L27/34
摘要： A controller comprises an input configured to receive data that defines a length of a message to be transmitted, k, and a number of channel units, N RE , available for transmitting that message. The controller also comprises a parameter generator configured to determine, in dependence on k and N RE , one or more parameters for controlling an operation. The operation prepares the message for transmission by transforming an original signal with a first probability distribution into a transformed signal with a second probability distribution. The controller is thus able to determine the parameters that are required for controlling a distribution matching operation, or other operations related to the PSCM system.

10. 发明申请

WO2018103854A1 TECHNIQUES FOR PROCESSING MULTIPLE DIVISION DUPLEXING SCHEMES WITHIN A TRANSMISSION TIME INTERVAL 审中-公开
公开(公告)号：WO2018103854A1
公开(公告)日：2018-06-14
申请号：PCT/EP2016/080306
申请日：2016-12-08
申请人： HUAWEI TECHNOLOGIES DUESSELDORF GMBH
发明人： IBRAHIM, Mohamed , XU, Wen
IPC分类号： H04L5/14 , H04L5/00
摘要： The disclosure relates to a radio transceiving device (1500), comprising: a processor (1501), configured to process a radio subframe (1503) comprising a plurality of resource elements (100d, 100b) in time and frequency, wherein a first portion (111, 113) of the resource elements comprises resource elements which are based on a first division duplexing scheme, and wherein a second portion (112, 114) of the resource elements comprises resource elements which are based on a second division duplexing scheme; and a transceiver (1502) configured to transceive the radio subframe (1503) within a transmission time interval (TTI).

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