Abstract: The present invention discloses a service transmission method, a network device, and a network system. The method includes: obtaining, by a first network device, a client service of FlexE, and obtaining clock information corresponding to the client service; mapping, by the first network device, the client service and the clock information to a timeslot of a FlexE frame, where the client service and the clock information occupy a same timeslot and/or different timeslots; and sending, by the first network device, the FlexE frame to a second network device. Therefore, service clock information can be transparently transmitted in flexible Ethernet by using the method of the present invention.

Abstract: The present invention discloses a service transmission method, a network device, and a network system. The method includes: obtaining, by a first network device, a client service of FlexE, and obtaining clock information corresponding to the client service; mapping, by the first network device, the client service and the clock information to a timeslot of a FlexE frame, where the client service and the clock information occupy a same timeslot and/or different timeslots; and sending, by the first network device, the FlexE frame to a second network device. Therefore, service clock information can be transparently transmitted in flexible Ethernet by using the method of the present invention.

Abstract: The present invention relates to the field of communication transmission, and in particular, discloses an optical channel data unit service transmission apparatus and method. The switching apparatus includes a first ODU service processing unit, a timeslot allocating unit, a switching output port allocating unit, an Ethernet switching unit, and a second ODU service processing unit, and forwards an ODU service according to a timeslot mapping table and a frame period timeslot table corresponding to the ODU service.

Abstract: The present invention discloses an apparatus and a method for transporting an ODU service. The transport apparatus includes a first ODU service processing unit, a timeslot allocation unit, a switching output port allocation unit, an Ethernet switching unit, and a second ODU service processing unit, where a table of a mapping between output ports of the first ODU service processing unit and timeslots is determined according to a rate of an ODUflex frame carried in an obtained ODU service and the number of the output ports of the first ODU service processing unit, and the ODU service is forwarded, which resolves a problem in the prior art that an ODUflex frame cannot be transported by using the Ethernet switching unit, thereby ensuring that service congestion does not occur on a forwarding port of a sending apparatus, and improving transmission quality of a communications network.

Abstract: The present invention relates to the field of communication transmission, and in particular, discloses an optical channel data unit service transmission apparatus and method. The switching apparatus includes a first ODU service processing unit, a timeslot allocating unit, a switching output port allocating unit, an Ethernet switching unit, and a second ODU service processing unit, and forwards an ODU service according to a timeslot mapping table and a frame period timeslot table corresponding to the ODU service.

Abstract: The present invention discloses an apparatus and a method for transporting an ODU service. The transport apparatus includes a first ODU service processing unit, a timeslot allocation unit, a switching output port allocation unit, an Ethernet switching unit, and a second ODU service processing unit, where a table of a mapping between output ports of the first ODU service processing unit and timeslots is determined according to a rate of an ODUflex frame carried in an obtained ODU service and the number of the output ports of the first ODU service processing unit, and the ODU service is forwarded, which resolves a problem in the prior art that an ODUflex frame cannot be transported by using the Ethernet switching unit, thereby ensuring that service congestion does not occur on a forwarding port of a sending apparatus, and improving transmission quality of a communications network.

Abstract: A method, device and system for implementing a long reach passive optical network are provided. Uplink optical burst packets are transmitted by an optical network unit. The uplink optical burst packets are converted into an electrical signal and then a continuous optical signal. The continuous optical signal is transmitted to a receiving device.

Abstract: A method, device and system for implementing a long reach passive optical network are provided. Uplink optical burst packets are transmitted by an optical network unit. The uplink optical burst packets are converted into an electrical signal and then a continuous optical signal. The continuous optical signal is transmitted to a receiving device.

Abstract: A method, device and system for implementing a long reach passive optical network (LR-PON) are provided, which solve the problem that the cost for establishing an LR-PON system is high. The method includes: receiving an uplink burst packet transmitted by an optical network unit (ONU) in a burst manner (101), converting a burst optical signal of the uplink burst packet into a continuous optical signal, and transmitting the continuous optical signal to a receiving device (105). The present invention is applicable to an LR-PON.

Abstract: The invention relates to methods for detecting the presence of a compound of formula I in a biological test sample: where R2, R3, and R4 are as defined in the specification; or a salt thereof.

Abstract: The invention relates to methods for detecting the presence of a compound of formula I in a biological test sample: where R2, R3, and R4 are as defined in the specification; or a salt thereof.

Abstract: The invention relates to methods for detecting the presence of a compound of formula I in a biological test sample: where R2, R3, and R4 are as defined in the specification; or a salt thereof.

Abstract: The invention relates to methods for detecting the presence of a compound of formula I in a biological test sample: where R2, R3, and R4 are as defined in the specification; or a salt thereof.

Abstract: A method, device and system for implementing a long reach passive optical network (LR-PON) are provided, which solve the problem that the cost for establishing an LR-PON system is high. The method includes: receiving an uplink burst packet transmitted by an optical network unit (ONU) in a burst manner (101) , converting a burst optical signal of the uplink burst packet into a continuous optical signal, and transmitting the continuous optical signal to a receiving device (105). The present invention is applicable to an LR-PON.

Abstract: The invention relates to methods for detecting the presence of a compound of formula I in a biological test sample: where R2, R3, and R4 are as defined in the specification; or a salt thereof.