H04L12/801

Method for Handover between Distributed APs, Central AP, and Distributed AP
20170374595 · 2017-12-28 ·

A method for a handover between distributed access points is disclosed, including receiving, by a central AP, an Ethernet frame; adding, by the central AP, a sequence number to the frame according to an address of a wireless terminal; sending, by the central AP to an AP 1, the frame to which the sequence number is added, and storing the frame to which the sequence number is added in a historical frame set of the wireless terminal; and sending, by the central AP, a frame in the historical frame set of the wireless terminal to an AP 2 when the wireless terminal is handed over from the AP 1 to the AP 2. If the wireless terminal moves fast, the central AP can send the frame in the historical frame set to the wireless terminal using the AP 2, so that a downlink packet loss is reduced.

Method and arrangement in a telecommunication system for handling status information of data units

A method is provided in a receiving node for handling status information of data units transmitted from a sending node to the receiving node over a radio link. The receiving node establishes (401) that a number of data units that has been transmitted by the sending node are missing. The receiving node sends (402) a reduced status message to the sending node over the radio link, which message is reduced such that it comprises the negative acknowledgement for a first part of missing data units and omits negative acknowledgements for the rest of the missing data units. The omitted negative acknowledgement for the rest of the missing data units will not erroneously be interpreted as correctly received data units by the sending node.

Centralized control of data plane applications

The invention relates to a central control entity (200) configured to control a data plane flow of a stream of data packages in a radio access network part of a mobile communications network. The central control entity (200) comprises an information detecting unit (210), configured to detect information about data plane applications (41-44) attached to forwarding elements (120-124; 131-134) of the radio access network part and configured to detect information about at least one data plane application (41-44) that is to be applied to said data plane flow. Furthermore, the central control entity (200) comprises a control unit (230), configured to determine a path of the data plane flow through the forwarding elements (120-24; 131-134) of the radio access network part, wherein the control unit (230) is configured to determine the path taking into account said at least one data plane application (41-44) to be applied to said data plane flow, the control unit (230) being further configured to instruct the forwarding element in the path, to which said at least one data place application is attached, to pass the data plane flow through said at least one data plane application (41-44).

System and method for improving channel efficiency in a wireless link
09854533 · 2017-12-26 · ·

System and method for improving channel efficiency in a wireless link between an access-point transceiver and a first transceiver. The first transceiver may have a first data throughput rate that is lower than the maximum possible data throughput rate of the wireless link. The first transceiver may include a first receive buffer. An indication of the first data throughput rate and a size of the first receive buffer may be received and stored by the access-point transceiver. A first size of a first data packet for transmission to the first transceiver may be determined by the access-point transceiver based on one or more of the first data throughput rate and/or the size of the first receive buffer. The first data packet of the first size may be transmitted to the first transceiver by the access-point transceiver at a data rate that is higher than the first data throughput rate.

Method and system for implementing X2 proxy
09853902 · 2017-12-26 · ·

Disclosed are a method and system for implementing an X2 proxy. The method includes that a function of a next-hop node serving as an X2 proxy of a previous-hop node (300) is activated; and X2 message interaction between an initial node and a target node is implemented through more than one X2 proxy including the previous-hop node and the next-hop node (301).

Data communications network for an aircraft
09853714 · 2017-12-26 · ·

A method of controlling data communication in a communications network having a plurality of remote input units providing data and a plurality of subscriber units utilizing at least some of the data. The data from the remote input units may be formatted into a format suitable for subscriber units, and/or may be processed to be useful to the subscriber units. The formatted and/or processed data is then provided over the communications network to the subscribing units.

Device mobility in a mesh network

In one embodiment, a device in a network receives a notification from a neighbor of the device indicative of a child node of the device requesting a parent change from the device to the neighbor. The device updates an existing routing path from the device to the child node to be routed through the neighbor, in response to receiving the notification from the neighbor. The device receives an instruction to remove the updated routing path from the device to the child node through the neighbor. The device removes the updated routing path from the device to the child node, in response to receiving the instruction to remove the updated routing path.

Simultaneous redirecting and load balancing

The present disclosure describes methods and systems for enabling simultaneous redirection and load-balancing of data packets to network elements in a network environment. In one embodiment, a data packet is received at a network element. The network element identifies a traffic bucket corresponding to the data packet. The traffic bucket includes a matching criterion that identifies a subset of network traffic to map to a node. The data packet is redirected, based on the traffic bucket, from a first address contained in a field of the data packet to a second address that corresponds to the node. The data packet is forwarded to the second address.

System and Method for a Managed Network with Quality-of-Service Management
20170366367 · 2017-12-21 · ·

Systems and methods for establishing Parameterized QoS flows in a managed network can include a Designated Network Node (like a Network Controller or any network node) discovering a plurality of network nodes. The Designated Network Node discovering one or more of the plurality of network nodes; classifying the discovered network node or nodes based on node type; determining from the classification which node or nodes are designated for supporting Parameterized QoS flows; and invoking a request to a MoCA layer to create Parameterized QoS flows between the network node or nodes classified as designated for Parameterized QoS flows and the source nodes (like BHR and DVRs); wherein the bandwidth designated for the individual Parameterized QoS flows is either a nominal value or actual value specified by the Designated Network Node such that the actual aggregate bandwidth for the Parameterized QoS flows does not exceed the network bandwidth available for actual Parameterized QoS flows; wherein when actual bandwidth is specified for each flow, the Designated Network Node can preempt some PQoS flows in order to release PQoS bandwidth for a new PQOS flow; wherein the Designated Network Node is provisioned with a trusted device list designating nodes for supporting PQoS flows, and preemption rules that can be used for preemption.

FRAMER AND FRAMING METHOD

A framer in a transmission device that allocates time slots of an optical channel to a logical path, divides client signals received via the logical path to the time slots allocated to the logical path, and transmits the client signals by a plurality of optical suhcarriers using optical wavelengths correlated with the time slots includes: a time slot allocating unit configured to perform a process of reducing a transmission band of the logical path when some of the optical wavelengths are unavailable and changing the time slots allocated to the logical path depending on the reduced transmission band to avoid using the time slots corresponding to the unavailable optical wavelengths.