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公开(公告)号：EP3926859A1
公开(公告)日：2021-12-22
申请号：EP21174604.5
申请日：2016-12-30
发明人： ZHANG, Lun , WAN, Xifeng , ZHENG, Gang
摘要： This application discloses a bandwidth allocation method, an optical line terminal, an optical network unit, and a system. The method includes: receiving a bandwidth request sent by each optical network unit ONU, where the ONU includes a first ONU1; generating a bandwidth map BWMap message according to bandwidth requested by the ONU and bandwidth configured for the ONU, where the BWMap message includes a first allocation identifier Alloc-ID1, a first time corresponding to the Alloc-ID1, a second allocation identifier Alloc-ID2, and a second time corresponding to the Alloc-ID2, and both the Alloc-ID1 and the Alloc-ID2 are allocated to the ONU1 for use; and sending the BWMap message to each ONU. Therefore, a problem that a transmission delay does not satisfy a requirement when a PON system is applied to mobile backhaul is resolved, a data transmission rate and data transmission efficiency are improved, and user satisfaction is improved.
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公开(公告)号：EP3955588A1
公开(公告)日：2022-02-16
申请号：EP20814371.9
申请日：2020-01-10
发明人： ZHANG, Lun , ZHENG, Gang
IPC分类号： H04Q11/00
摘要： Embodiments of this application disclose a bandwidth allocation method and a related device, to improve appropriateness of resource allocation. The method in the embodiments of this application includes: when a total sum of a cumulative sum of fixed bandwidth configuration upper limits of traffic bearing entities and a cumulative sum of assured bandwidth configuration upper limits of the traffic bearing entities is greater than a maximum bandwidth value of a passive optical network (PON) port of a central office equipment, determining, by the central office equipment based on a bandwidth configuration upper limit of each traffic bearing entity and a required bandwidth value of the traffic bearing entity, a bandwidth value actually allocated to the traffic bearing entity. In this way, a part of bandwidth is allocated to each traffic bearing entity. This avoids a case in which no bandwidth is allocated to some traffic bearing entities. Therefore, resource allocation is more appropriate.
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公开(公告)号：EP4231660A1
公开(公告)日：2023-08-23
申请号：EP21893871.0
申请日：2021-11-16
发明人： LIN, Liankui , ZHANG, Lun , LUO, Jun
IPC分类号： H04Q11/00
摘要： Embodiments of this application disclose a data transmission method and a related device. The method in embodiments of this application includes the following steps: An OLT obtains a first uplink transmission parameter of a first terminal corresponding to a first ONU. Then the OLT determines, based on the first uplink transmission parameter, a cycle period for performing data transmission with the first ONU, where each cycle period includes an uplink time window and a downlink time window, the uplink time window includes a first uplink transmission timeslot used by the first ONU to send uplink data, and the downlink time window is used by the OLT to send downlink data. Then the OLT sends an uplink grant message to the first ONU, where the uplink grant message is used to indicate the first uplink transmission timeslot of the first ONU in each cycle period. Further, the OLT receives, in a first uplink transmission timeslot in a same cycle period, first uplink data sent by the first ONU, and sends first downlink data to the first ONU in a downlink time window in the same cycle period.
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4.发明公开
公开(公告)号：EP3836428A1
公开(公告)日：2021-06-16
申请号：EP18931644.1
申请日：2018-08-31
发明人： ZHANG, Lun , ZHENG, Gang
IPC分类号： H04B10/25
摘要： Embodiments of this application provide an information transmission method, an optical line termination, an optical network unit, and a communications system. A method on an optical line termination OLT side includes: allocating, by the OLT, an identifier to a first optical network unit ONU through a first channel, and performing, through the first channel, ranging on the first ONU to obtain ranging information about the first channel; and after determining, by the OLT and the ONU through negotiation, to use two channels to perform information transmission, performing, by the OLT, data transmission of a first service with the first ONU through a second channel. In this method, identifier allocation and ranging are performed through the first channel, and the data transmission of the first service is performed through the second channel. In this way, a relatively large delay is no longer generated for service data that has a relatively high requirement for delay. This further ensures normal execution of these services.
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公开(公告)号：EP4311129A1
公开(公告)日：2024-01-24
申请号：EP22790731.8
申请日：2022-03-07
发明人： ZHANG, Lun , ZHENG, Gang
IPC分类号： H04B10/278 , H04J3/16 , H04Q11/00
摘要： A transmission method, apparatus, and system are disclosed, and may be applied to the field of optical communication technologies, to resolve problems of a large delay and a large delay jitter in a process of transmitting downlink service data in the conventional technology. The method includes: An optical head end generates uplink grant information of periodic data based on configuration information of the periodic data from a controller, where the uplink grant information of the periodic data is continuously valid within a threshold time range, and indicates a corresponding transmission slot of sending the periodic data by an optical terminal. The optical head end sends the uplink grant information of the periodic data to the optical terminal. According to the method, the uplink grant information of the periodic data is continuously valid within the threshold time range. Therefore, the optical head end may no longer deliver the uplink grant information of the periodic data to the optical terminal within the threshold time range. This can effectively avoid waiting time for sending downlink service data, and reduce a delay.
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公开(公告)号：EP4274118A1
公开(公告)日：2023-11-08
申请号：EP21927561.7
申请日：2021-10-21
发明人： ZHANG, Lun , LUO, Jun , WANG, Su
IPC分类号： H04B10/278 , G05B19/05
摘要： Embodiments of this application disclose an optical bus communication method, including: A first terminal obtains first control information from a controller, where the first control information is generated by the controller and is used to control an execution mechanism to work. The first terminal sends the first control information to a central office over a first section, so that the central office forwards the first control information to a second terminal, where the second terminal is connected to the execution mechanism. The first terminal obtains first state information from the central office, where the first state information is used to record a working state of the execution mechanism, the first state information is information sent by the second terminal to the central office over a second section after the second terminal obtains the first control information, and the first section does not overlap with the second section. Embodiments of this application further provide a system, a device, and a medium. The controller is connected to a position of a terminal, and a first section does not overlap with a second section. Therefore, no upstream message conflict occurs, flat access of the controller is implemented, and redundancy of an optical bus communication system architecture is reduced.
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7.发明公开METHOD, APPARATUS AND SYSTEM FOR TERMINAL AUTHENTICATION IN PASSIVE OPTICAL NETWORK 审中-公开被动光网络中终端认证的方法，装置和系统
公开(公告)号：EP3007384A1
公开(公告)日：2016-04-13
申请号：EP13892067.3
申请日：2013-08-22
发明人： ZHANG, Lun , WAN, Xifeng
IPC分类号： H04L9/32
CPC分类号： H04L63/08 , H04B10/27 , H04B10/272 , H04B10/85 , H04L63/0876
摘要： Embodiments of the present invention disclose a terminal authentication method in a passive optical network. The passive optical network includes an optical line terminal and at least one optical network terminal, where the optical line terminal is connected to the at least one optical network terminal by using an optical distribution network, and an authentication parameter is preconfigured on the optical line terminal. The method includes: receiving, by the optical line terminal, a registration request that carries an authentication parameter and is sent by the optical network terminal, where the authentication parameter is used to identify the optical network terminal of a same type; and determining, by the optical line terminal, that the authentication parameter sent by the optical network terminal matches the authentication parameter preconfigured on the optical line terminal, and authorizing that the optical network terminal is an authorized terminal. By using the foregoing technical solutions, an optical line terminal may be, during ONU registration and authentication, plug-and-play, without needing to manually input authentication information, which improves automation and flexibility of authentication.
摘要翻译： 本发明的实施例公开了无源光网络中的终端认证方法。 所述无源光网络包括光线路终端和至少一个光网络终端，所述光线路终端通过光分配网络与所述至少一个光网络终端连接，并且所述光线路终端上预先配置有认证参数 。 所述方法包括：所述光线路终端接收所述光网络终端发送的携带鉴权参数的注册请求，所述鉴权参数用于标识同一类型的光网络终端; 所述光线路终端确定所述光网络终端发送的所述认证参数与所述光线路终端上预先配置的认证参数相匹配，并授权所述光网络终端为授权终端。 通过上述技术方案，光线路终端在ONU注册和认证过程中可以即插即用，无需手动输入认证信息，提高了认证的自动化和灵活性。
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公开(公告)号：EP4369733A1
公开(公告)日：2024-05-15
申请号：EP22847990.3
申请日：2022-05-24
发明人： LIN, Liankui , HAN, Yanru , ZHANG, Lun
摘要： Embodiments of this application disclose a cascaded optical network termination ONT processing method. The cascaded ONT processing method includes: A primary ONT receives an upstream service data packet from a secondary ONT. The upstream service data packet includes a user terminal identifier and a transmission path identifier of a transmission path through which a user terminal accesses the secondary ONT. The primary ONT establishes a transmission path correspondence table. After receiving a downstream service data packet from an OLT, the primary ONT adds, after a corresponding transmission path identifier is found in the transmission path correspondence table, the transmission path identifier to the downstream service data packet, and sends, to the secondary ONT, the downstream service data packet to which the transmission path identifier is added, to indicate the secondary ONT to send the downstream service data packet through a transmission path corresponding to the transmission path identifier. Embodiments of this application further disclose an ONT apparatus and a cascaded ONT system. The solutions disclosed in embodiments of this application can simplify a network architecture, and improve efficiency of forwarding service data on a cascaded ONT.
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公开(公告)号：EP4322546A1
公开(公告)日：2024-02-14
申请号：EP22827048.4
申请日：2022-03-07
发明人： YAN, Linzhi , ZHANG, Lun , NIE, Shiwei
IPC分类号： H04Q11/00
摘要： This application provides a data frame fragmentation method, a data frame parsing method, and a related device. An OLT generates an original data frame. The original data frame includes a frame header and a packet. If a length of the frame header is greater than a first preset value, the OLT performs fragmentation on the frame header to obtain a target data frame. A length of each subframe header after the frame header is fragmented is less than or equal to the first preset value. The target data frame includes a plurality of codewords. At least one codeword includes a first field. Each codeword includes a second field. The at least one codeword further includes a third field. The first field is used for carrying the subframe header and a first packet having a low priority. The second field is used for carrying a check code. The third field is used for carrying a second packet having a high priority. A sending order of the first packet is after a subframe header with a front most sending order, and the sending order of the first packet is before a sending order of at least one subframe header. Further, the OLT sends the target data frame to an optical network unit ONU.
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公开(公告)号：EP4311136A1
公开(公告)日：2024-01-24
申请号：EP22790728.4
申请日：2022-03-04
发明人： ZHANG, Lun , ZHENG, Gang
IPC分类号： H04J3/16 , H04B10/278
摘要： A communication method and a communication apparatus are provided, and are applicable to the field of optical communication technologies, to resolve a problem of how an ONT gets online and problems of a large delay and large delay jitter of sending uplink service data by an online ONT when a field bus performs communication by using a PON system. The method includes: An optical line terminal OLT may obtain a cycle period and a data amount of periodic data, and allocate a first slot and a second slot based on the data amount of the periodic data and the cycle period, where the first slot is used to transmit the periodic data, the second slot is used for windowing, and the second slot is a part or all of slots other than the first slot in the cycle period. The OLT uniformly allocates the first slot used to transmit the periodic data and the second slot used for windowing. In this way, a delay, of transmitting service data by an online ONT, caused by windowing performed for an off-line ONT to get online can be reduced, and delay jitter can be reduced.
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