Air Interface Resource Control via Hello Packet Frequency Switching

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Solution Overview

Problem

In wireless communications systems, air interface resource waste occurs when user equipment does not transmit service data for extended periods, leading to inefficient allocation and utilization of limited frequency resources.

Innovation Solution

A method where communication devices send hello packets at varying frequencies to detect service data transmission, switching to a lower frequency when no data is transmitted, allowing the access network to release the air interface resource, thereby reallocating it to other channels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the access network device keeps the air interface resource allocated to user equipment to ensure communication channel availability, then the communication reliability is improved, but the air interface resource utilization deteriorates when the user equipment does not transmit service data for extended periods

Engineering Contradiction:
Improvecommunication channel availabilityVSAvoidair interface resource waste
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The patent implements dynamic adjustment of hello packet transmission frequency based on service data transmission status. When service data is being transmitted, hello packets are sent at a first (higher) frequency to maintain communication channel availability. When no service data transmission is detected within a threshold time, the frequency is reduced to a second (lower) frequency, allowing the access network device to release and reallocate air interface resources. This dynamic frequency adjustment resolves the contradiction by adapting the resource maintenance behavior to actual usage conditions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the transmission frequency parameter of hello packets based on service data transmission detection. The system switches between two frequency states: a first frequency when service data transmission is active, and a second frequency when it is inactive. This parameter change mechanism enables the system to balance between maintaining communication reliability and reducing air interface resource waste by adjusting the hello packet frequency according to actual service needs.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If the access network device releases the air interface resource when hello packet is not detected, then the air interface resource utilization is improved, but the communication reliability deteriorates for user equipment that temporarily stops data transmission

Engineering Contradiction:
Improveair interface resource utilizationVSAvoidcommunication channel stability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system dynamically adjusts hello packet transmission frequency based on service data transmission status. When service data transmission is detected, the system uses a higher frequency to maintain communication reliability. When no transmission is detected, it reduces to a lower frequency, allowing resource release. This dynamic behavior enables the system to distinguish between temporary pauses and actual disconnections, resolving the contradiction between resource utilization and communication stability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements a feedback mechanism where the access network device monitors service data transmission status and adjusts hello packet frequency accordingly. The system detects whether service data is being transmitted and provides feedback by switching between two frequency states. This feedback loop ensures that air interface resources are released only when appropriate, while maintaining communication reliability during active service periods.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS11337217B2Method, device and system for controlling air interface resource
Publication Date: 2022.05.17 HUAWEI TECH CO LTD
  • US11337217B2 patent drawing
  • US11337217B2 patent drawing
  • US11337217B2 patent drawing

AI summary

Embodiments of the present application provide a method, device and system for controlling an air interface resource and relates to the field of communications, which improves air interface resource utilization. The method includes: when a core network device or user equipment detects that service data is not transmitted over a communication channel between the two devices by using an air interface resource, switching a first frequency of sending a hello packet to a peer device to a second frequency, and sending a frequency switching message to instruct the peer device also to switch the first frequency of sending a hello packet to the second frequency, so that when the hello packet is not detected within a packet detection period, an access network device releases an air interface resource occupied by a first communication channel.