摘要:
This application discloses a PON system, an OLT, and an ONU, and relates to the optical communications field. The PON system includes an OLT and at least two ONUs, and the OLT and the at least two ONUs exchange data on one downstream channel and two upstream channels. The OLT sends downstream data to each ONU on the downstream channel, where the downstream data includes an upstream bandwidth grant, and the upstream bandwidth grant is used to control the ONU to send upstream data; the ONU receives the downstream data on the downstream channel, and sends the upstream data on a first upstream channel or a second upstream channel based on the upstream bandwidth grant included in the downstream data; and the OLT receives, on the first upstream channel and the second upstream channel, the upstream data sent by each ONU, where a registration function is disabled on the first upstream channel, and the registration function is enabled on the second upstream channel.
摘要:
This application discloses an optical splitting apparatus, an optical splitting system, a passive optical network, and an optical fiber fault detection method. The optical splitting apparatus includes a first optical splitting unit, a plurality of first optical path processing units, and a second optical path processing unit. The first optical splitting unit includes a first port and a plurality of second ports, and the first port is separately connected to the plurality of second ports. The first optical path processing unit includes a third port, a fourth port, and a fifth port, and the fifth port is separately connected to the third port and the fourth port. The second optical path processing unit includes a sixth port, a seventh port, and an eighth port, and the sixth port is separately connected to the seventh port and the eighth port. The third port is connected to the second port through a first optical fiber, the fourth port is connected to a second optical fiber, and the fifth port is connected to a branch fiber. The sixth port is connected to a feeder fiber, the seventh port is connected to the first port through a third optical fiber, and the eighth port is connected to a fourth optical fiber.
摘要:
This application provides a data transmission method and apparatus, a gateway, a chip, and a storage medium. The method includes: mapping a to-be-transmitted service flow to a virtual connection based on a mapping relationship between an identifier of the to-be-transmitted service flow in a mobile network and an identifier of the virtual connection; mapping the to-be-transmitted service flow to a virtual bearer based on a mapping relationship between the identifier of the virtual connection and an identifier of the virtual bearer; and mapping the to-be-transmitted service flow to a virtual bearer queue based on a mapping relationship between a quality of service characteristic identifier of the to-be-transmitted service flow and an identifier of the virtual bearer queue in the virtual bearer, to transmit the to-be-transmitted service flow to an optical line terminal. In other words, when the service flow is scheduled, scheduling is performed based on the quality of service characteristic identifier of the to-be-transmitted service flow, which is consistent with a scheduling manner in the mobile network. Therefore, scheduling of the to-be-transmitted service flow is not delayed.
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.
摘要:
Embodiments of the present invention disclose a method for awaking an optical network unit in a passive optical network, including: receiving, by an optical line terminal OLT, a service packet corresponding to an ONU in an energy-saving mode, where the service packet carries a packet feature, and the packet feature indicates a service type of the service packet; detecting, by the OLT, the packet feature of the service packet; and when the packet feature of the service packet is a preset packet feature of needing to awake the ONU, awaking, by the OLT, the ONU in the energy-saving mode. According to the technical solutions provided in the embodiments of the present invention, an ONU can be awoken from an energy-saving mode in time when a traffic rate at an initial service stage is small, and a high QoS requirement of a service is met.
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 by the ONU, where the BWMap message includes a first allocation identifier Alloc-IDl, a first time corresponding to the Alloc-IDl, a second allocation identifier Alloc-ID2, and a second time corresponding to the Alloc-ID2, and both the Alloc-IDl 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.
摘要:
A multicast service processing method and access equipment are disclosed, wherein the method includes: receiving multicast program request message from terminal device, inquiring about program rating parameters according to said multicast program request message, wherein the program rating parameter includes multicast group IP address and multicast program rated priority, generating multicast program data according to the program rating parameters, then sending the multicast program data to the terminal device.
摘要:
The present invention discloses a bandwidth assignment method and apparatus, and an optical network system. The method includes: setting a maximum bandwidth grant size and a maximum burst bandwidth grant size for an optical network unit; receiving a bandwidth assignment request of the optical network unit; and when an optical line terminal determines, according to the bandwidth assignment request, that a bandwidth grant size requested to be assigned in the bandwidth request is greater than the set maximum bandwidth grant size and less than or equal to the set maximum burst bandwidth grant size, determining, by the optical line terminal, in response to the request, to assign the requested bandwidth grant size to the optical network unit. Therefore, timely and accurate transmission of massive uplink burst data traffic is ensured, a transmission delay is reduced, service performance is improved, and system bandwidth utilization is greatly increased.