Abstract: A method and network device for forwarding data packets. Specifically, the method and network device disclosed herein separate the known data packet forwarding architecture in network devices, often implemented using a single component, into two components. In implementing the pair of components, functionalities directed to forwarding data packets versus buffering data packets, based on the detection of data packet collisions, are segregated. Further, the segregation of these functionalities reduces the latency observed in the communication of the data packets from these network devices to other devices to which these network devices may be connected through a network.
Abstract: A method for maintaining synchronization of nodes in a mesh network includes: receiving primary beacons from a first transmitting node during a predetermined time interval, each of the primary beacons comprising time information indicating a time that a respective primary beacon was transmitted; comparing the time that each of the primary beacons was transmitted with a time that each of the primary beacons was received to determine a time difference; accumulating the time difference for each primary beacon received from the first transmitting node during the predetermined time interval to generate a first time synchronization error; comparing the first time synchronization error to a first threshold value; and in response to determining that the first time synchronization error exceeds the first threshold value, transmitting a first request to the first transmitting node to increase a rate of beacon transmissions for a specified period of time.
Abstract: An aggregated BIER networking system includes first and second aggregated BFER devices that are each directly connected to first and second receiver devices. The first aggregated BFER device receives a request from the first receiver device for multicast data packets generated by a source device and transmits the request to a BFIR device. The first aggregated BFER device also receives an identification from the second aggregated BFER device of the second receiver device that has requested multicast data packets generated by the source device. The first aggregated BFER device advertises a virtual BFER device that appears to be directly connected to each of the first and second aggregated BFER devices, and each of the first and second receiver devices. The first aggregated BFER device then receives a multicast data packet identifying the virtual BFER device, and forwards the multicast data packet to each of the first and second receiver devices.
Abstract: A method for notifying binding information, including: acquiring, by an allocation node, SR-TE path information; binding, by the allocation node, an IPV6 SID corresponding to the SR-TE path information with the SR-TE path information so as to obtain SRV6 binding information between the SR-TE path information and the IPV6 SID; and notifying, by the allocation node, the SRV6 binding information to a preset node through an extended PCEP.
Abstract: A method and apparatus for routing packets in a network, such as a satellite mesh network. Network nodes maintain awareness of network status in a limited surrounding region through flooding notifications. Network nodes route packets by addressing them to a selected other node within part or the entire limited surrounding region. Network nodes adjust the portion of the network to which they route packets to match the limited surrounding region, which changes dynamically due to network events.
Abstract: Various example embodiments for supporting fragmentation and reassembly of packets in communication networks are presented. Various example embodiments for supporting fragmentation and reassembly of packets in communication networks may be configured to support fragmentation and reassembly of labeled packets, such as Multiprotocol Label Switching (MPLS) packets or other types of labeled packets, in communication networks. Various example embodiments for supporting fragmentation and reassembly of labeled packets may be configured to support fragmentation and reassembly of labeled packets at various contexts of the labeled packets where the contexts of the labeled packets may be indicated within the labeled packets using sets of context labels for the contexts of the labeled packets.
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling configuring the UE with a set of frequency resources and a semi-persistent resource allocation indicating a semi-persistent resource occasion on each frequency resource of the set. The UE may monitor semi-persistent resource occasions on each of the set of frequency resources for a copy of a data transmission. If the UE receives and decodes the data transmission from at least one of the semi-persistent resource occasions, the UE may transmit an acknowledgement message on a frequency resource of the set. Additionally, the UE may refrain from transmitting a feedback message on the other frequency resources of the set. If the UE does not receive and successfully decode the data transmission from any of the semi-persistent resource occasions, the UE may transmit a negative acknowledgement message on one of the set of frequency resources.
June 11, 2020
Date of Patent:
June 7, 2022
Yan Zhou, Tao Luo, Xiaoxia Zhang, Seyed Ali Akbar Fakoorian, Mostafa Khoshnevisan, Rajat Prakash, Vinay Joseph, Sony Akkarakaran, Juan Montojo, Hamed Pezeshki, Konstantinos Dimou
Abstract: Apparatuses and methods for obtaining and providing hybrid automatic repeat request acknowledgement (HARQ-ACK) information. A method for providing HARQ-ACK information includes receiving a configuration for a slot offset value and receiving a physical sidelink shared channel (PSSCH) over a number of sub-channels in a first slot. The PSSCH includes a transport block (TB). The method includes determining a second slot as an earliest slot with resources for transmission of a physical sidelink feedback channel (PSFCH) that is after the first slot by a number of slots equal to the slot offset value. The PSFCH includes the HARQ-ACK information that is in response to reception of the TB. The method further includes transmitting the PSFCH in the second slot.
Abstract: This application provides a method for obtaining a FIB of a device on a network. The network includes a verification system and a plurality of devices, and a first device is one of the plurality of devices. The first device receives a request message sent by the verification system, where the request message carries a command for obtaining a FIB of the first device that is generated at a specified time. The first device obtains the FIB or a FIB snapshot of the first device that is generated at the specified time. The first device adds the obtained FIB or FIB snapshot to a response message, and sends the response message to the verification system.
Abstract: The disclosure proposes a method for transmitting/receiving data in a wireless communication system and apparatus for supporting the same. Specifically, a method of transmitting an uplink data channel by a user equipment (UE) in a wireless communication system comprises receiving, from a base station, first downlink control information for scheduling an uplink data channel in an nth transmission time unit, receiving, from the base station, second downlink control information for scheduling an uplink data channel in an n+kth transmission time unit, and when information by the first downlink control information is inconsistent with information by the second downlink control information, transmitting an uplink data channel which is based on the first downlink control information to the base station, wherein the second downlink control information may be discarded by the UE.
Abstract: A communication device and a data collection system that, when lower connection devices are connected to a communication device, improve efficiency of communication between the communication device and an upper connection device. There is an acquirer that acquires data from the lower connection devices, and a transmission setter that sets a transmission period, which is a time interval in which the data acquired by the acquirer from the lower connection devices is compiled and the compiled data is transmitted to the upper connection device as transmission data, to be equal to or longer than a communication period that is the longest among communication periods of the lower connection devices. Further, there is a transmitter that transmits the transmission data to the upper connection device with the transmission period that is set by the transmission setter.
Abstract: A packet processing apparatus sets, for each TS as a gate state of each of a first gate and a second gate, a priority state, a normal state, and a mixed state and sets a predetermined TS associated with a cyclic pattern of the first packet to the priority or the mixed state. The apparatus allocates, when an amount of output delay of the first packet that is in the mixed state in the predetermined TS is within an allowable amount, the first packet and the second packet to the predetermined TS. The apparatus sets output timing of the first packet allocated in the predetermined TS to the priority state and sets output timing of the second packet allocated in the predetermined TS to the normal state.
Abstract: In some embodiments, a method stores a plurality of requests for routes in a queue based on respective priorities for the routes. The plurality of requests are for programming destinations and next hops for the destinations in a route table that is used by a device in a network to route packets. The method selects a request for a route from the queue based on a respective priority for the queue. Then, the request for the route is sent to an entity to program the route in the route table.
Abstract: Beam failure recovery (BFR) procedures are described for wireless communications. A base station may send a message to a wireless device during a BFR procedure. The message may comprise one or more BFR configuration parameters and/or reconfigure one or more BFR configuration parameters. The wireless device may stop the BFR procedure, for example, after or in response to receiving the message from the base station. The wireless device may initiate a second BFR procedure using one or more of the BFR configuration parameters received in the message.
September 24, 2019
Date of Patent:
May 3, 2022
Comcast Cable Communications, LLC
Ali Cirik, Esmael Dinan, Hua Zhou, Alireza Babaei, Hyoungsuk Jeon, Kyungmin Park, Kai Xu
Abstract: A system is described in which a default mobility management entity (MME) receives, from a base station, a request for setting up a communication connection to a mobile device having an associated usage type. The default MME sends, to the base station and responsive to the request, a message identifying a dedicated MME, to which the request should be re-routed, the dedicated MME having a supported service type corresponding to the usage type associated with the mobile device. The base station sends a response to the default MME, the response indicating whether re-routing to said dedicated MME is was successful or not (e.g. due to an overload of the dedicated MME). If the re-routing was not successful, the default MME attempts to serve the mobile device instead of the dedicated MME.
Abstract: A method, base station (BS), user equipment (UE), apparatus, and computer program product for wireless communication are provided. An aggressor BS may cause a remote interference condition for a victim BS, and the victim BS may transmit a reference signal to the aggressor BS to enable a remote interference management (RIM) operation to be performed. However, the aggressor BS may be unable to identify the victim BS based at least in part on the reference signal, and may fail to transmit a reference signal as a response. Further, when the aggressor BS does transmit a reference signal, the victim BS may be unable to identify the aggressor BS. This may reduce an effectiveness of RIM operations. In some aspects, BSs may transmit reciprocal reference signals including identification information to enable effective RIM operations.
Abstract: The technologies described herein are generally directed toward establishing a domain of authority for routing table updates from a routing device. For instance, operations can comprise facilitating receiving, from a second routing device via a network, a route update for the routing table of the first routing device, wherein the route update is associated with a first network route. An additional operation can evaluate a value of the route update, resulting in an evaluated value of the route update. Further an operation can include updating, by the graphics processing unit, a first entry of the routing table based on the route update and the evaluated value of the route update, wherein evaluating the value of route updates, comprising the evaluating the value, and updating entries of the routing table, comprising the updating the first entry, are comprised in an updating process.
Abstract: An example method may include identifying a first transmit identifier (TID) associated with a first node of a wireless network as ready to transmit and adding the first TID to a ready to transmit queue at a first point in time. The method may also include identifying a second TID associated with a second node of the wireless network as ready to transmit, and adding the second TID to the ready to transmit queue at a second point in time later than the first point in time. The method may additionally include selecting the second TID from the ready to transmit queue before selecting the first TID based on a projected increased overall throughput of packets within the wireless network when communicating with the second node before communicating with the first node.
Abstract: A network node for facilitating data transfer is disclosed, comprising: a routing module configured to receive network link capacity information; a first radio interference operating on a first radio access technology and coupled to the routing module; and a second radio interface operating on a second radio access technology and coupled to the routing module, wherein the routing module is configured to receive packets directed to a third virtual radio interface and route the packets to one or both of the first and the second radio interfaces to provide throughput at the third virtual radio interface that is greater than throughput available via either the first or the second radio interfaces independently.