摘要:
In the field of communications technologies, a method and device for sending and receiving service data provided by embodiments of the present invention may be capable of solving the problem that a network system cannot bear a service of arbitrary rate. The method for sending service data includes: receiving at least one flexible data channel to which service data is adapted; searching for an address of a destination port corresponding to a source port of the at least one flexible data channel; scheduling the at least one flexible data channel to an Optical Channel Data Unit-k (ODUk) frame in the corresponding destination port respectively according to channel indication information corresponding to the at least one flexible data channel; and forwarding the ODUk frame to the destination address through an Optical Transport Network (OTN) line after completing construction of the ODUk frame. The embodiments of the present application are applicable to optical network communications.
摘要:
A method and an apparatus for transmitting multiple services are provided, and which belong to the field of optical transmission technologies. The method includes: receiving bandwidth information of TCONTs of all nodes; dividing a payload area of a GTH frame into a preset number n of arrays, where each array includes a specified number of timeslots and the interval between any two neighboring timeslots in each array is n and n is a natural number; calculating, according to the bandwidth information of the TCONTs of all the nodes, timeslot positions of arrays occupied by the TCONTs of each node in the payload area; interleaving, according to the timeslot positions of the arrays occupied by the TCONTs of a local node in the payload area, the TCONTs of the local node into corresponding timeslots starting from a specified frame, obtaining a GTH frame, and transmitting the GTH frame.
摘要:
A method and an apparatus for transmitting multiple services are provided, and which belong to the field of optical transmission technologies. The method includes: receiving bandwidth information of TCONTs of all nodes; dividing a payload area of a GTH frame into a preset number n of arrays, where each array includes a specified number of timeslots and the interval between any two neighboring timeslots in each array is n and n is a natural number; calculating, according to the bandwidth information of the TCONTs of all the nodes, timeslot positions of arrays occupied by the TCONTs of each node in the payload area; interleaving, according to the timeslot positions of the arrays occupied by the TCONTs of a local node in the payload area, the TCONTs of the local node into corresponding timeslots starting from a specified frame, obtaining a GTH frame, and transmitting the GTH frame.
摘要:
A method and an apparatus for multi-service adaptation and carriage, comprising: mapping at the service adaptation layer different types of services into uniform enhanced Gigabit Passive Optical Network Encapsulation Method (E-GEM) frames; combining at the channel layer E-GEM frames encapsulating the same type of services into the same type of T-CONT frames; setting a priority for each type of T-CONT; guaranteeing bandwidth for T-CONT frames with high priority and preferentially sending it.
摘要:
A service adaptation device includes: a service access unit, configured to obtain service data, where the service data includes a Gigabit-Passive Optical Network (GPON) Encapsulation Method (GEM) frame, Time Division Multiplex (TDM) service data, and Ethernet (ETH) service data; and an Enhanced GPON Encapsulation Method (E-GEM) adaptation unit, configured to encapsulate the service data obtained by the service access unit into an E-GEM frame. A service adaptation method includes: obtaining service data, where the service data includes a GEM frame, TDM service data, and ETH service data; and encapsulating the obtained service data into an E-GEM frame.
摘要:
A method and an apparatus for multi-service adaptation and carriage, comprising: mapping at the service adaptation layer different types of services into uniform enhanced Gigabit Passive Optical Network Encapsulation Method (E-GEM) frames; combining at the channel layer E-GEM frames encapsulating the same type of services into the same type of T-CONT frames; setting a priority for each type of T-CONT; guaranteeing bandwidth for T-CONT frames with high priority and preferentially sending it.
摘要:
The present invention discloses a microwave access method and a multi-service transport device. The present invention includes: detecting whether a performance parameter and/or a status parameter of a microwave air interface changes; if the performance parameter and/or the status parameter of the microwave air interface changes, generating a dynamic bandwidth request according to the changed performance parameter and/or the changed status parameter, and sending the dynamic bandwidth request to a main control unit of a multi-service transport network; receiving dynamic bandwidth allocation information sent by the main control unit according to the dynamic bandwidth request; and receiving an uplink microwave signal transmitted by the microwave air interface, performing uplink service processing on the uplink microwave signal to obtain uplink service data, and transporting the uplink service data to the multi-service transport network according to the dynamic bandwidth allocation information.
摘要:
Embodiments of the present invention disclose a method and a system for realizing PON reach extension, and a relay apparatus for realizing this method. The method includes: extracting an overhead in an upstream data stream that is sent by an ONU to an OLT, obtaining a payload in the upstream data stream through de-mapping, and storing it into a buffer; extracting bandwidth authorization information in an downstream data stream that is sent by the OLT to the ONU; and reorganizing a stored payload according to the bandwidth authorization information and inserting a corresponding overhead to generate a new upstream data stream and send it to the OLT.