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CN-122002545-A - Time domain scheduling method, device and system

CN122002545ACN 122002545 ACN122002545 ACN 122002545ACN-122002545-A

Abstract

A time domain scheduling method, device and system belong to the technical field of communication. The time domain scheduling method is executed by a control node in a FTTR network and comprises the steps that after a time domain scheduling function is started, the control node receives an alarm message sent by a first network node, the control node is used for performing time domain scheduling on at least one network node in the FTTR network under the time domain scheduling function, the first network node is any network node in the at least one network node, and the alarm message is used for indicating whether the first network node exits from the time domain scheduling. The application is beneficial to avoiding random back-off conflict of an air interface and can improve the sending efficiency in a network. The application is used for FTTR networks.

Inventors

  • QIU HAO
  • WU XUMING
  • CAO JIANCHAO

Assignees

  • 华为技术有限公司

Dates

Publication Date
20260508
Application Date
20241104

Claims (20)

  1. 1. A time domain scheduling method, the method performed by a control node in a fiber to room FTTR network, the method comprising: Starting a time domain scheduling function, wherein the control node is used for performing time domain scheduling on at least one network node in the FTTR network under the time domain scheduling function; And the first network node is any network node in the at least one network node, and the alarm message is used for indicating whether the first network node exits the time domain scheduling.
  2. 2. The method of claim 1, wherein the alert message is for indicating that the first network node has exited the time domain schedule; the method further comprises ceasing time domain scheduling of the first network node.
  3. 3. The method of claim 1, wherein the alert message is used to indicate that the first network node continues to participate in the time domain schedule or that the first network node applies to exit the time domain schedule.
  4. 4. A method according to claim 3, characterized in that the method further comprises: Stopping the time domain scheduling of the first network node according to the alarm message; And sending an exit indication message to the first network node, wherein the exit indication message is used for indicating the first network node to exit the time domain scheduling.
  5. 5. A method according to claim 3, characterized in that the method further comprises: And the higher the priority of the network node is, the earlier the scheduled order of the network node in the time domain scheduling process is.
  6. 6. The method according to any one of claims 1 to 5, wherein the alert message comprises whether to exit a time domain scheduling field; the exit time domain scheduling field is used to indicate whether the first network node exits the time domain scheduling.
  7. 7. The method according to any one of claims 1 to 6, wherein the first network node is configured to send the alarm message when the scheduling message sent by the control node is not received within a timeout period after sending the service information; the scheduling message is sent based on the service information, and the scheduling message is used for indicating the air interface resource allocated to the first network node; The alarm message is also used for indicating unscheduled time length, and the unscheduled time length is the time length when the first network node does not receive the scheduling message after sending the service information.
  8. 8. The method of claim 7, wherein the alert message includes an unscheduled duration field indicating the unscheduled duration.
  9. 9. The method according to any of claims 1 to 8, wherein the alert message is further used to indicate the waiting time period of the head of line packet in the cache queue of the first network node.
  10. 10. The method of claim 9, wherein the alert message includes a first packet delay field indicating the waiting duration.
  11. 11. A time domain scheduling method, the method performed by a first network node in a fiber-to-room FTTR network, the first network node being any one of at least one network node of the FTTR network, the method comprising: Starting a time domain scheduling function, wherein the first network node is used for time domain scheduling by the control node under the time domain scheduling function; And sending an alarm message to the control node, wherein the alarm message is used for indicating whether the first network node exits the time domain scheduling.
  12. 12. The method of claim 11, wherein the alert message is for indicating that the first network node has exited the time domain schedule; the method further includes exiting the time domain schedule before sending an alert message to the control node.
  13. 13. The method of claim 11, wherein the alert message is used to indicate that the first network node continues to participate in the time domain schedule or that the first network node applies to exit the time domain schedule.
  14. 14. The method of claim 13, wherein after sending an alert message to the control node, the method further comprises: receiving an exit indication message sent by the control node, wherein the exit indication message is used for indicating the first network node to exit the time domain scheduling; and exiting the time domain scheduling according to the exiting indication message.
  15. 15. The method according to any one of claims 11 to 14, wherein the alert message comprises a whether to exit a time domain scheduling field, the whether to exit time domain scheduling field being used to indicate whether the first network node exits the time domain scheduling.
  16. 16. The method according to any one of claims 11 to 15, wherein after the time domain scheduling function is started, the method further comprises sending service information to the control node, wherein the service information is information of service data that needs to be transmitted by the first network node through an air interface; The method comprises the steps of sending an alarm message to a control node, wherein the alarm message is sent to the control node when a scheduling message sent by the control node is not received within a timeout period after sending the service information, the alarm message is also used for indicating an unscheduled period, the unscheduled period is a period when the first network node does not receive the scheduling message after sending the service information, the scheduling message is sent based on the service information, and the scheduling message is used for indicating air interface resources allocated to the first network node.
  17. 17. The method of claim 16, wherein the alert message includes an unscheduled duration field; the unscheduled duration field is used to indicate the unscheduled duration.
  18. 18. The method according to any of the claims 11 to 17, wherein the alarm message is further used for indicating the waiting time period of the head of line data packet in the buffer queue of the first network node.
  19. 19. The method of claim 18, wherein the alert message includes a first packet delay field; the first packet delay field is used for indicating the waiting duration.
  20. 20. A time domain scheduler, the time domain scheduler belonging to a control node in a fiber-to-room FTTR network, the time domain scheduler comprising: The starting module is used for starting a time domain scheduling function, and the control node is used for performing time domain scheduling on at least one network node in the FTTR network under the time domain scheduling function; The system comprises a receiving module, a receiving module and a scheduling module, wherein the receiving module is used for receiving an alarm message sent by a first network node, the first network node is any network node in the at least one network node, and the alarm message is used for indicating whether the first network node exits the time domain scheduling.

Description

Time domain scheduling method, device and system Technical Field The present application relates to the field of communications technologies, and in particular, to a time domain scheduling method, apparatus, and system. Background Currently, in a fiber-in-room (fiber to the room, FTTR) network, individual slave FTTR devices (sub FTTR unit, SFU) share air interface resources. The SFU may contend for the channel in the air interface resource to obtain a transmission opportunity. However, with the development of communication technology, the number of SFUs is increasing, and the probability that multiple SFUs compete for channels at the same time is also increasing. Multiple SFUs compete for channels at the same time and may generate random backoff collision, resulting in packet failure, reduced network throughput, and increased service delay. Therefore, how to avoid random back-off collision of the air interface, it is worth researching to improve the transmission efficiency in the network. Disclosure of Invention The time domain scheduling method, the time domain scheduling device and the time domain scheduling system are beneficial to avoiding random back-off conflict of an air interface and improving the transmission efficiency in a network. In a first aspect, the present application provides a time domain scheduling method, which is executed by a control node in a FTTR network, the method includes that the control node receives an alarm message sent by a first network node after starting a time domain scheduling function. The control node is configured to perform time domain scheduling on at least one network node in the FTTR network under the time domain scheduling function, the first network node is any network node in the at least one network node, and the alarm message is configured to indicate whether the first network node exits from the time domain scheduling. In the time domain scheduling method provided by the embodiment of the application, the control node and the at least one network node both start the time domain scheduling function. The at least one network node may then be time domain scheduled under a time domain scheduling function. When the control node performs time domain scheduling on the at least one network node, air interface resources (also called centralized scheduling) are allocated to each network node, and a scheduling message for indicating the air interface resources allocated to the network node is sent to the network node. The network node may contend for an air interface (i.e., a channel, so contend for an air interface, i.e., a contention channel) on the air interface resource indicated by the scheduling message and transmit data on the contended air interface after contending for the air interface. When the at least one network node includes a plurality of network nodes, the air interface resources allocated by different network nodes may be the same or different, which is not limited in the embodiment of the present application. For example, the time and/or frequency domains of the air interface resources allocated by at least two network nodes are different. It can be seen that, the air interface resources of the network node competing for the air interface are allocated by the control node, and centralized control on the at least one network node can be realized by the control node, so that the scheduling message sent by the control node indicates each network node to compete for the air interface on the corresponding air interface resources, and then after competing for the air interface, data is transmitted on the competing air interface. In this way, random back-off collision among network nodes is avoided, interference among air interfaces of the network nodes is reduced, air interface efficiency is improved, retransmission rate is reduced, time delay is reduced, and throughput is improved. And, the first network node may also send an alert message to the control node to alert the control node and indicate whether the first network node exits the time domain scheduling. Thus, the functionality of the first network node is enriched. Further, there are a number of possible implementations of alert messages. For example, the alert information may also indicate that the first network node has exited the time domain schedule or that the first network node has not exited the time domain schedule. For another example, the alert message is used to indicate that the first network node continues to participate in the time domain scheduling, that the first network node applies to exit the time domain scheduling, or that the first network node has exited the time domain scheduling. If the alarm message indicates that the first network node continues to participate in the time domain scheduling, the first network node is indicated not to exit the time domain scheduling. The alarm message is used for indicating the first network node to continue to participate in the time doma