Supporting internet protocol version 4 (IPv4) extension headers

    公开(公告)号:US11363123B2

    公开(公告)日:2022-06-14

    申请号:US16931825

    申请日:2020-07-17

    发明人: Lin Han

    摘要: A method implemented by a network element (NE) comprises generating, by a processor, an Internet Protocol version 4 (IPv4) packet comprising an IPv4 header, a plurality of extension headers, and upper layer data, wherein the IPv4 packet indicates a total length of the IPv4 packet and a total length of the plurality of extension headers, indicating, by the processor, a protocol number associated with a first extension header of the plurality of extension headers in a protocol field of the IPv4 header, indicating, by the processor, a protocol used to encode the upper layer data of the IPv4 packet in a last protocol field of a last extension header of the plurality of extension headers, and transmitting, by a transmitter, the IPv4 packet to another NE.

    Latency based forwarding of packets with destination policies

    公开(公告)号:US11362959B2

    公开(公告)日:2022-06-14

    申请号:US16822458

    申请日:2020-03-18

    摘要: Latency Based Forwarding (LBF) techniques are presented for the management of the latencies, or delays, of packets forwarded over nodes, such as routers, of a network. In addition to a network header indicating a destination node for receiving the packet, a packet also includes an LBF header indicating the packets accumulated delay since leaving the sender, a maximum latency for the entire journey from the sender to the receiver and a minimum latency for the entire journey from the sender to the receiver. When a packet is received at a node, based on the accumulated delay, the maximum latency, and the minimum latency, the node places the packet in a forwarding queue to manage the delays between the sender and the receiver. The LBF can also indicate a policy for the forwarding node to used when determining the enqueueing of the packet.

    System and method for device-to-device synchronization

    公开(公告)号:US11330542B2

    公开(公告)日:2022-05-10

    申请号:US16716140

    申请日:2019-12-16

    摘要: A method and system for including a base station that configures a first user equipment (UE) that is in a radio resource control connected state with the base station. The UE is configured to be a synchronization source and transmit a first device-to-device synchronization signal (D2DSS) by using a synchronization resource that comprises a time resource, a frequency resource or a time and frequency resource. The base station instructs the first UE to transmit the first D2DSS using the synchronization resource. The base station signals the UE to configure the UE separately from the signal to transmit the D2DSS, and both of the signals are performed with radio resource control signaling from the base station to the UE.

    System and method for network topology management

    公开(公告)号:US11233722B2

    公开(公告)日:2022-01-25

    申请号:US16033687

    申请日:2018-07-12

    摘要: A method for operating a device includes measuring a radio condition for channels between the device and each of a plurality of candidate serving nodes, thereby producing radio condition measurements, adjusting for each of the plurality of candidate serving nodes, an associated radio condition measurement in accordance with stratum information of the candidate serving node, and selecting a serving node from the plurality of candidate serving nodes in accordance with the adjusted radio condition measurements.