Congestion notification method, related device, and system

• US 10,303,518 B2
• Filed: 05/09/2017
• Issued: 05/28/2019
• Est. Priority Date: 11/10/2014
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Wang, Shuo, Ma, Jingwang
• Primary Examiner(s): Mui, Gary
• Application Number:
  US15/590,728
• Publication Number:
  US 20170242730A1
• Time in Patent Office: 749 Days
• CPC Class Codes: G06F 17/10 Complex mathematical operations function generation by table look-up G06F1/03; evaluation of elementary functions by calculation G06F7/544
• CPC Class Codes: H04L 45/02 Topology update or discovery
• CPC Class Codes: H04L 45/028 Dynamic adaptation of the update intervals, e.g. event-triggered updates
• CPC Class Codes: H04L 47/12 Avoiding congestion; Recovering from congestion
• CPC Class Codes: H04L 67/025 for remote control or remote monitoring of applications
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04W 28/02 Traffic management, e.g. flow control or congestion control
• CPC Class Codes: H04W 28/0247 based on conditions of the access network or the infrastructure network central resource management H04W28/16
• CPC Class Codes: H04W 36/30 by measured or perceived connection quality data

Abstract

A congestion notification method, a related device, and a system, where the method includes receiving, by a network side device, a congestion status of a target network area sent by a radio access network (RAN) congestion awareness function (RCAF) entity, where the target network area is a network area involved in an application service provided by a target application server; and sending, by the network side device, the congestion status of the target network area to the target application server. Hence, an application server may able to learn in time when congestion occurs, and adjust, according to the congestion situation, a related service in an area corresponding to the congestion situation.

Claims

1. A network side device, comprising:

a receiver configured to;

receive a congestion status of a target network area from a radio access network (RAN) congestion awareness function (RCAF) entity, the target network area being a network area involved in an application service provided by a target application server; and

receive a first congestion query request from the target application server, the first congestion query request comprising information about a target area, and the first congestion query request requesting to acquire a congestion status of the target area;

a transmitter coupled to the receiver and configured to;

send the congestion status of the target network area to the target application server; and

send a second congestion query request to the RCAF entity, the second congestion query request comprising an identifier of the target network area, and the second congestion query request requesting to acquire the congestion status of the target network area; and

a processor coupled to the receiver and the transmitter and configured to;

determine, according to the information about the target area, the identifier of the target network area related to the target area; and

determine, according to a mapping relationship between the information about a target geographic area and the identifier of the target network area, the identifier of the target network area corresponding to the information about the target geographic area.

2. The network side device of claim 1, wherein the information about the target geographic area comprises information about an area not divided by an operator and that cannot be identified by the network side device.

3. The network side device of claim 1, wherein the network side device is a service capability exposure function (SCEF) entity.

4. An application server, comprising:

a transmitter configured to send a congestion query request to a network side device, the congestion query request comprising information about a target area, the congestion query request requesting to acquire a congestion status of the target area, the information about the target area comprising either an identifier of a target network area or information about a target geographic area, and the information about the target geographic area comprising information about an area not divided by an operator and that cannot be identified by the network side device;

a receiver coupled to the transmitter and configured to receive a congestion status of the target network area related to the target area from the network side device; and

a processor coupled to the transmitter and the receiver and configured to adjust a running status of an application according to the congestion status of the target network area.

5. The application server of claim 4, wherein the congestion query request further comprises service content description information of a target application, the receiver being further configured to receive a congestion status of an application in the target network area that matches the target application, and the congestion status being from the network side device.

6. A method implemented by an application server, the method comprising:

sending, by a transmitter of the application server, a congestion query request to a network side device, the congestion query request comprising information about a target area, the congestion query request requesting to acquire a congestion status of the target area, the information about the target area comprising either an identifier of a target network area or information about a target geographic area, and the information about the target geographic area comprising information about an area not divided by an operator and that cannot be identified by the network side device;

receiving, by a receiver of the application server, a congestion status of the target network area related to the target area from the network side device; and

adjusting, by a processor of the application server, a running status of an application according to the congestion status of the target network area.

7. The method of claim 6, wherein the congestion query request further comprises service content description information of a target application, and the method further comprises receiving, by the receiver of the application server, a congestion status of an application in the target network area that matches the target application, the congestion status being from the network side device.