Abstract:
The present invention discloses a packet transmission method and user equipment. The method includes: transmitting, by a sending node, multiple packets to a receiving node; receiving multiple acknowledgement packets from the receiving node; after determining, based on the received multiple acknowledgement packets, that a first packet is lost, retransmitting the first packet; and if it is detected that the retransmitted packet is lost, continuously retransmitting, by the sending node, the first packet to the receiving node in a preset time interval for at least twice. According to the solutions of the present invention, the retransmitted packet can be detected and recovered in time after the retransmitted packet is lost, thereby reducing a quantity of times of timeout retransmission, improving a transmission rate, moreover, reducing a packet loss probability of a retransmitted packet, and further reducing a probability of timeout retransmission.
Abstract:
Embodiments of the present disclosure provide a processing method for a service flow packet, and the method includes: receiving, by an access device, a service flow packet sent by a terminal; determining, by the access device according to a flow table and the received service flow packet, a function module for processing the service flow packet; sending, by the access device, the service flow packet to the function module; obtaining, by the access device, a service flow packet processed by the function module; and sending, by the access device, the service flow packet processed by the function module. The embodiments of the present disclosure further provide a device for processing a service flow packet. By using the present disclosure, processing flexibility and processing efficiency of a service flow packet can be improved.
Abstract:
A routing node includes: at least one optical buffer, a switching node, and at least one transmission waveguide, where an output end of each optical buffer is connected to an input end of the switching node; each transmission waveguide is connected to an output end of the switching node. The optical buffer is configured to parse a received optical signal to obtain an identifier of a destination routing node, and send the identifier to the switching node. The switching node determines whether an output port required by the destination routing node is in an idle state or a busy state; and control the optical buffer to store the optical signal if the output port is in a busy state; or send the optical signal to the destination routing node if the output port is in an idle state.
Abstract:
Embodiments of the present invention provide a data transmission method, a forwarding information update method, a communications device, and a controller. The communications device includes: a forwarding module and one or more interfaces, where the forwarding module receives a data packet sent to a receive end; determines, according to a correspondence between data filtering template information of the data packet and interface information in forwarding information maintained by the forwarding module, an interface for forwarding the data packet to the receive end, where if data packet transmission is performed by using a specific radio access technology between the communications device and a next hop to which the communications device forwards the data packet, the interface is an interface corresponding to the radio access technology; and forwards the data packet to the interface; and the interface receives the data packet sent by the forwarding module, and forwards the data packet.
Abstract:
The present disclosure discloses a carrier bearing method and device, and a base station. The carrier bearing method includes: obtaining transmit power of each carrier borne on all power amplifiers in a radio remote unit after detecting that transmit power of a carrier borne on a power amplifier in the radio remote unit changes; adjusting a correspondence between the carriers and the power amplifier in the radio remote unit according to the obtained transmit power; and bearing each carrier on its corresponding power amplifier according to the adjusted correspondence. The device and base station are used to implement the above method.
Abstract:
A wireless network system includes: a single network controller (SNC) that is configured to perform a centralized control function, an ingress network element that is configured to perform matching on a data flow processing rule, and a function node network FNN that is configured to perform a user plane function. The FNN includes at least one function node FN, both the ingress network element and the FN are communicatively connected to the SNC, and at least two FNs are connected to each other directly or through an Internet Protocol IP network. The SNC is specifically configured to implement a control plane function of the wireless network system; the ingress network element is specifically configured to perform rule matching and mark a data packet with a label. The FN is specifically configured to perform one or a combination of data processing and data forwarding according to the label.
Abstract:
The present application provides a control method in a communications network, a centralized controller, and a wireless communications network system, where the method includes: generating a to-be-confirmed processing type list according to a service type of a service flow and a data path type template, where the to-be-confirmed processing type list includes all processing function types that may be needed by the service flow; then filtering the to-be-confirmed processing type list, and generating a processing type list, where the processing type list includes processing function types that are essential to the service flow; further, sequentially selecting a working policy and a working parameter for each processing instance, generating a full path policy, and sending the full path policy to an instance of each function node. Therefore, a corresponding service flow path is selected according to a service type corresponding to a different service flow, network resource utilization is improved.
Abstract:
Technologies are described herein for recovering data in a storage device comprising a controller and a plurality of storage units. The controller receives a data stream, and divides the data stream into a plurality of data blocks, obtains a code block using the plurality of data blocks. When there is one or more blocks with damaged data in the plurality of data blocks and the code block, the controller obtains a sub-block from the Mth bit to the Nth bit of each block in the plurality of data blocks and the code block as a set, and reconstructs data in one or more sub-blocks with damaged data using other sub-blocks with undamaged data in the set.
Abstract:
Embodiments of the present invention provide a cellular network controller, including: a wireless protocol processing module, configured to process a wireless handover request from a radio network user or a radio network access network, and report a processing result; a policy control module, configured to formulate a bearer forwarding policy of a handover user according to event information pre-stored in the cellular network controller and the processing result reported by the wireless protocol processing module; and a policy delivering module, configured to deliver the bearer forwarding policy formulated by the policy control module to a policy executor corresponding to the handover user for executing, so that a packet sent to the handover user is forwarded according to the bearer forwarding policy. By using the foregoing solutions in the embodiments of the present invention, signaling negotiation among multiple control entities is decreased, thereby reducing waste of network resources.
Abstract:
Embodiments of the present invention provide a system, method, and device for processing air interface information. An enhanced base station includes: a receiver, configured to receive, through an open interface, an air interface control policy sent by a radio access network controller having an air interface control function of a radio access network; and a processor, configured to process air interface user plane data according to the air interface control policy. The technical solutions provided by the embodiments of the present invention implement separation of a control plane and a user plane of the radio access network through the radio access network controller and the enhanced base station.