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11. 发明申请

WO2019201441A1 PATH COMPUTATION ENGINE AND METHOD OF CONFIGURING AN OPTICAL PATH FOR QUANTUM KEY DISTRIBUTION 审中-公开
公开(公告)号：WO2019201441A1
公开(公告)日：2019-10-24
申请号：PCT/EP2018/060027
申请日：2018-04-19
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： CAVALIERE, Fabio , BOTTARI, Giulio , CATUOGNO, Tommaso
IPC分类号： H04L9/08 , H04J14/02 , H04L12/751 , H04L12/24
摘要： A path computation engine, PCE, (100) for an optical communications network comprising a plurality of nodes and a plurality of links. The PCE comprises a processor and memory comprising instructions executable by the processor whereby the PCE is operative to: receive a request to configure a quantum key, Qkey, path from a first node to a second node in the optical communications network for a quantum key distribution, QKD, signal for a quantum key for a secure data transmission signal; calculate a feasible Qkey path from the first node to the second node that is logically different to a traffic path from the first node to the second node for the secure data transmission signal, wherein the Qkey path is feasible if an optical signal power originating from the secure data transmission signal within the Qkey path, caused by optical interference of the secure data transmission signal with the QKD signal, is below a predetermined threshold value; and generate a control signal comprising instructions arranged to configure said feasible Qkey path.

12. 发明申请

WO2021167502A1 USER EQUIPMENT AND METHOD PERFORMED THEREIN FOR COMMUNICATION IN A WIRELESS COMMUNICATION NETWORK 审中-公开
公开(公告)号：WO2021167502A1
公开(公告)日：2021-08-26
申请号：PCT/SE2020/050180
申请日：2020-02-17
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： RUFFINI, Stefano , BOTTARI, Giulio
IPC分类号： H04W56/00 , H04W12/12 , H04J3/06
摘要： A method performed by a UE (10) for evaluating validity of a radio link, wherein the UE (10) is operating in a wireless communication network, and wherein the UE (10) receives a signal on the radio link. The UE (10) determines (401) that the received signal comprises a time synchronization message and a security extension associated with the time synchronization message. The UE (10) further determines (402) that the radio link is valid if a security mechanism related to the security extension indicates that the time synchronization message is valid. The UE (10) further determines (403) that the radio link is non-valid if the security mechanism related to the security extension indicates that the time synchronization message is non-valid.

13. 发明申请

WO2020125967A1 QUANTUM KEY DISTRIBUTION APPARATUS AND METHOD 审中-公开
公开(公告)号：WO2020125967A1
公开(公告)日：2020-06-25
申请号：PCT/EP2018/085829
申请日：2018-12-19
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： CATUOGNO, Tommaso , CAVALIERE, Fabio , BOTTARI, Giulio
IPC分类号： H04L9/08 , H04L29/06
摘要： Quantum key distribution, QKD, apparatus (100) for an optical communications network. The QKD apparatus comprises a quantum transmitter (1 10), a processor (120) and memory (130) comprising instructions executable by the processor whereby the QKD apparatus is operative to: obtain a Qkey for transmission from a first node to a second node in an optical communications network at a target Qrate; generate and send to a path computation element, PCE, a QKD channels request comprising a request for QKD channels for distribution of the Qkey and an indication of the target Qrate; receive, from the PCE, an indication of QKD channels having paths and Qrates, a sum of the QKD channel Qrates being at least equal to the target Qrate; partition the Qkey into a plurality of sub-keys; and generate a control signal comprising instructions arranged to cause the quantum transmitter to transmit the sub-keys on respective QKD channels at respective Qrates and on respective paths.

14. 发明申请

WO2020057733A1 COMMUNICATION SIGNAL MULTIPLEXING AND DEMULTIPLEXING APPARATUS AND METHODS 审中-公开
公开(公告)号：WO2020057733A1
公开(公告)日：2020-03-26
申请号：PCT/EP2018/075243
申请日：2018-09-18
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： BOTTARI, Giulio , GIORGI, Luca , PONZINI, Filippo
IPC分类号： H04B10/25 , H04B10/2575
摘要： Communication signal multiplexing apparatus (100) comprising: a first optical receiver (102) configured to receive an optical analog radio signal and to convert it into a corresponding electrical analog radio signal having a carrier frequency; a second optical receiver (104) configured to receive an optical digital communication signal and to convert it into a corresponding electrical digital communication signal having a frequency spectrum; first electrical filter apparatus (106) configured to receive the electrical digital communication signal, comprising a low-pass filter having a cut-off frequency lower than the carrier frequency of the electrical analog radio signal, and configured to apply the low-pass filter to the electrical digital communication signal; signal combining apparatus (108) configured to combine the low-pass filtered electrical digital communication signal with the electrical analog radio signal to form a combined electrical signal; and an optical transmitter (110) configured to generate an optical communication signal carrying a representation of the combined electrical communication signal.

15. 发明申请

WO2018196969A1 ROBUST DATA REPLICATION AMONG DATA CENTERS 审中-公开
公开(公告)号：WO2018196969A1
公开(公告)日：2018-11-01
申请号：PCT/EP2017/059981
申请日：2017-04-26
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： BOTTARI, Giulio , RUFFINI, Stefano
IPC分类号： G06F17/30 , H04L12/26 , G06F11/34
摘要： A method of data replication between a first data center and a second data center, wherein the first data center has a data set to be replicated, the method comprising: determining (501) whether a first path from the first data center to the second data center is suitable for the data set to be replicated, by: transmitting (502) test data along the first path, taking (503) latency measurements for the test data along the first path; and determining a latency parameter of the first path using the latency measurements; and determining (504) if the latency parameter of the test data is less than a maximum latency threshold. If the latency parameter is less than the maximum latency threshold, the method performs (505) replication of the data set using the first path.

16. 发明申请

WO2018113907A1 METHOD OF CONTROLLING TRAFFIC FLOWS IN A RADIO COMMUNICATIONS NETWORK, REMOTE NODE AND RADIO COMMUNICATIONS NETWORK 审中-公开
公开(公告)号：WO2018113907A1
公开(公告)日：2018-06-28
申请号：PCT/EP2016/081804
申请日：2016-12-19
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： RUFFINI, Stefano , IOVANNA, Paola , BOTTARI, Giulio , PONZINI, Filippo
IPC分类号： H04L12/801 , H04L12/825
摘要： A method (100) of controlling traffic flows in a radio communications network, the method comprising steps of: receiving (102) at a remote node a plurality of traffic flows transmitted from a plurality of radio units; buffering (104) the traffic flows in a common buffer of the remote node; and causing (106) a control signal to be sent to a baseband unit when a fill level of the common buffer is predicted to go above a maximum fill level within a pre-set time interval, wherein the control signal is configured to cause an adjustment of a radio resource allocation of one of the plurality of radio units to cause a reduction in a data rate of the traffic flow transmitted from said radio unit.

17. 发明申请

WO2018065031A1 DATA CENTER NETWORK NODE 审中-公开
标题翻译：数据中心网络节点
公开(公告)号：WO2018065031A1
公开(公告)日：2018-04-12
申请号：PCT/EP2016/073585
申请日：2016-10-03
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： GIORGI, Luca , GIURLANDA, Francesco , BOTTARI, Giulio , D'ERRICO, Antonio
IPC分类号： H04J14/02 , H04B10/2581 , H04Q11/00
摘要： A data center network node (28) comprises one or more switch (18,19,22,23) configured to link an optical transceiver (16,17) to an optical connection comprising a multi-core optical fiber (30) having a plurality of cores (31 ). For each core (31 ), the one or more switch (18,19,22,23) is configurable between a first configuration in which an optical signal on a said core (31 ) of the multi-core optical fiber bypasses the optical transceiver and a second configuration in which the optical transceiver is optically linked to the said core (31 ) of the multi-core optical fiber (30).
摘要翻译：数据中心网络节点（28）包括一个或多个交换机（18,19,22,23），其被配置为将光收发机（16,17）链接到包括多核光纤（30）具有多个芯（31）。对于每个核心（31），所述一个或多个开关（18,19,22,23）可在第一配置和第二配置之间配置，在所述第一配置中，所述多芯光纤的所述核心（31）上的光信号绕过所述光收发器以及其中光学收发器与多芯光纤（30）的所述芯（31）光学链接的第二配置。

18. 发明申请

WO2017088911A1 SWITCHING DATA SIGNALS OF AT LEAST TWO TYPES FOR TRANSMISSION OVER A TRANSPORT NETWORK PROVIDING BOTH BACKHAUL AND FRONTHAUL (XHAUL) CONNECTIVITY 审中-公开
标题翻译：通过交通网络交换至少两种类型的数据信号，提供回程和FRONTHAUL（XHAUL）连接
公开(公告)号：WO2017088911A1
公开(公告)日：2017-06-01
申请号：PCT/EP2015/077556
申请日：2015-11-24
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： BOTTARI, Giulio , CAVALIERE, Fabio , RUFFINI, Stefano , STRACCA, Stefano
IPC分类号： H04W28/06 , H04W88/08
CPC分类号： H04Q11/0066 , H04J3/1611 , H04J3/1664 , H04L7/0075 , H04Q2011/0086 , H04W40/00 , H04W88/085
摘要： A method (100) for switching data signals transmitted over a transport network is disclosed. The method comprises receiving a plurality of input data signals of a first signal type wherein the plurality of data signals of the first signal type comprises data signals exchanged between a Radio Equipment (RE) and a Radio Equipment Controller (REC) (110) and aggregating the plurality of input data signals into an aggregated first data signal (120). The method also comprises receiving a second data signal of a second signal type different to the first signal type (130), and multiplexing the first data signal with the second data signal to form a combined data signal (140). The method further comprises forwarding the combined data signal to the transport network (160). Multiplexing the first data signal with the second data signal (140) comprises, for a frame of the combined data signal, allocating the first data signal to a portion of the frame reserved for the first data signal (142), and allocating the second data signal to a remaining portion of the frame (146).
摘要翻译：公开了一种用于切换通过传输网络传输的数据信号的方法（100）。该方法包括接收第一信号类型的多个输入数据信号，其中第一信号类型的多个数据信号包括在无线电设备（RE）和无线电设备控制器（REC）（110）之间交换的数据信号并聚合将所述多个输入数据信号转换为聚合的第一数据信号（120）。该方法还包括接收不同于第一信号类型（130）的第二信号类型的第二数据信号，并且将第一数据信号与第二数据信号复用以形成组合数据信号（140）。该方法还包括将组合的数据信号转发到传输网络（160）。将第一数据信号与第二数据信号（140）复用包括：对于组合数据信号的帧，将第一数据信号分配给为第一数据信号（142）保留的帧的一部分，以及分配第二数据信号发送到帧（146）的其余部分。

19. 发明申请

WO2016155828A1 A NETWORK NODE 审中-公开
标题翻译：网络节点
公开(公告)号：WO2016155828A1
公开(公告)日：2016-10-06
申请号：PCT/EP2015/057266
申请日：2015-04-01
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： RUFFINI, Stefano , BOTTARI, Giulio
IPC分类号： H04L12/841 , H04L12/863 , H04W88/08
CPC分类号： H04W56/0045 , H04L47/28 , H04L47/283 , H04L47/32 , H04L47/50 , H04L47/56 , H04L47/60 , H04W72/1242
摘要： A network node (15) is configured to switch data packets between a Remote Radio Unit (2) and a Digital Unit (4). The network node comprises one or more input port (33) configured to receive said data packets (52a) and receive further packets having a destination other than one of a Remote Radio Unit and a Digital Unit. One or more output port (35) is configured to transmit said data packets and said further packets. A scheduler (31) is configured to control transmission from the output port according to a scheduling cycle (41a). The scheduler is configured to schedule only said data packets to be transmitted in a first period of the scheduling cycle, and schedule one or more of said further packets to be transmitted in a separate second period of the scheduling cycle.
摘要翻译：网络节点（15）被配置为在远程无线电单元（2）和数字单元（4）之间切换数据分组。网络节点包括被配置为接收所述数据分组（52a）并接收具有远程无线电单元和数字单元之外的目的地的其他分组的一个或多个输入端口（33）。一个或多个输出端口（35）被配置为发送所述数据分组和所述另外的分组。调度器（31）被配置为根据调度周期（41a）控制从输出端口的传输。调度器被配置为仅在调度周期的第一周期中调度要发送的所述数据分组，并且在调度周期的单独的第二周期中调度要发送的所述另外的分组中的一个或多个。

20. 发明申请

WO2016138950A1 ENCAPSULATING DIGITAL COMMUNICATIONS SIGNALS FOR TRANSMISSION ON AN OPTICAL LINK 审中-公开
标题翻译：封装数字通信信号传输光网络
公开(公告)号：WO2016138950A1
公开(公告)日：2016-09-09
申请号：PCT/EP2015/054502
申请日：2015-03-04
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： CAVALIERE, Fabio , STRACCA, Stefano , BOTTARI, Giulio
IPC分类号： H04J3/16
CPC分类号： H04J3/1652 , H04J3/0688 , H04J3/1664 , H04L1/0058 , H04L1/0071
摘要： A method (10) of encapsulating digital communications signals for transmission on a communications link, comprising steps: a. receiving a first signal of a first signal type and comprising a first clock signal and receiving a second signal of a second signal type, different to the first, and comprising a second clock signal different to the first clock signal, each clock signal having a respective clock value and accuracy (12); b. obtaining the first clock signal (14); c. obtaining a difference between at least one of the clock values of the clock signals and the accuracies of the clock signals (16) and buffering the second signal for a time at least long enough to compensate for the difference (18); and d. assembling the first signal and the buffered second signal into a frame comprising an overhead and a payload comprising a first portion and a second portion, mapping the first signal into the first portion and the second signal into the second portion (20), wherein step d. is performed using the first clock signal.
摘要翻译：一种封装数字通信信号以在通信链路上传输的方法（10），包括步骤：a。接收第一信号类型的第一信号并且包括第一时钟信号并且接收与第一信号类型不同的第二信号类型的第二信号，并且包括与第一时钟信号不同的第二时钟信号，每个时钟信号具有相应的时钟值和精度（12）; 湾获得第一时钟信号（14）; C。获得所述时钟信号的时钟值中的至少一个与所述时钟信号（16）的精度之间的差值，并将所述第二信号缓冲至少足以补偿所述差值（18）的时间。和d。将第一信号和缓冲的第二信号组合成包括开销和包括第一部分和第二部分的有效载荷的帧，将第一信号映射到第一部分，将第二信号映射到第二部分（20）中，其中步骤d 。使用第一时钟信号执行。

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