Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A method and system for air interface congestion control based on comp

A technology for congestion control and air interface resources, applied in the field of air interface congestion control based on multi-point cooperation, it can solve the problems of forced business dismantling, service quality reduction, integration, etc., and achieve the effect of improving the overall throughput and simplifying the congestion control process.

Inactive Publication Date: 2017-09-05
ZTE CORP
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The air interface congestion control technology used in the LTE system, for the scenario where a cell provides services to UEs, removes air interface congestion by removing the bearers of low-priority services and releasing resources to accept current services, or by reducing the quality of service (QoS, Quality of Service) and release resources to release air interface congestion to accept current services, which will not only cause the UE’s services to be forcibly removed, but also require the UE to participate in the congestion control process, resulting in cumbersome congestion control processes and reducing the QoS of UE services. Since the existing air interface congestion control technology cannot integrate the resources of multiple cells, it cannot be applied to the scenario where multiple cells provide services to UEs at the same time. It is necessary to propose a method that can be applied to the CoMP-based LTE-A system Air Interface Congestion Control Technology

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method and system for air interface congestion control based on comp
  • A method and system for air interface congestion control based on comp
  • A method and system for air interface congestion control based on comp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] When air interface congestion occurs in the main cell in the current CoMP cell concentration, the specific implementation process of air interface congestion control is as follows: figure 2 As shown, the steps are as follows:

[0066] Step 201: Each cooperating cell in the current CoMP cell set periodically feeds back its own channel quality information and remaining air interface resources to the primary cell according to a preset time period.

[0067] Specifically, each coordinated cell feeds back channel quality information including its own CQI, SINR, and the number of remaining RBs to the primary cell.

[0068] Step 202: The main cell receives the E-UTRAN radio access bearer setup request (E-RAB SETUPREQUEST, E-UTRAN Radio Access Bearer SETUP REQUEST) message sent by the core network, triggers the main cell to accept a service of the UE, and then accepts the UE's When air interface congestion occurs during a service, the main cell records the air interface resour...

Embodiment 2

[0075] When air interface congestion occurs in any coordinated cell in the current CoMP cell set, the specific implementation process for air interface congestion control is as follows: image 3 As shown, the steps are as follows:

[0076] Step 301: exactly the same as step 201;

[0077]Step 302: After a cooperating cell in the current CoMP cell group receives the bearer establishment request message sent by the core network, air interface congestion occurs when accepting a service of the UE, and the cooperating cell sends a congestion control request to the primary cell, and the congestion control request includes There are air interface resources needed to relieve current congestion, channel quality information and remaining air interface resources of the coordinated cell.

[0078] Step 303: After receiving the congestion control request sent by the coordinated cell, the primary cell integrates the current CoMP according to the last received channel quality information and ...

Embodiment 3

[0084] Such as Figure 4 As shown, the flow of performing air interface congestion control on the LTE-A system may mainly include the following steps:

[0085] Step 401: The cell receives an E-UTRAN radio access bearer (E-RAB, E-UTRAN Radio Access Bearer) establishment request sent by a mobility management device (MME, Mobility Management Entity);

[0086] Step 402: Air interface congestion occurs when the cell establishes the E-RAB;

[0087] Step 403: verify whether the cell is a CoMP cell, if yes, continue to step 404, otherwise, directly access step 405;

[0088] Step 404: Perform CoMP-based congestion control processing on the cell. If the congestion is successfully resolved and E-RAB is successfully accepted, proceed to step 406; if the congestion is not successfully resolved, proceed to step 405;

[0089] Specifically, if the cell is a primary cell, the processing procedure in Embodiment 1 may be used for implementation, and if the cell is a coordinated cell, the proce...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention discloses a CoMP-based congestion control method. The method includes: the primary cell integrates itself and the primary cell according to the air interface resources needed to relieve the current congestion, and the channel quality information and remaining air interface resources of itself and each cooperative cell. The air interface resources of each coordinated cell, and adjust the resource scheduling of itself and each coordinated cell. The present invention also discloses a congestion control system based on CoMP. The present invention does not need to tear down the UE service, nor does it reduce the QoS of the UE service, and does not require the participation of the UE. The air interface congestion control of the CoMP LTE-A system can effectively improve the overall throughput of the system.

Description

technical field [0001] The present invention relates to an air interface congestion control technology of a communication system, in particular to an air interface congestion control method and system based on Cooperative Multi-point (CoMP, Cooperative Multi-Point). Background technique [0002] Coordinated Multi-point transmission / reception (CoMP, Coordinated Multi-point transmission / reception) is proposed to further improve the long-term evolution (LTE, Long-Term Evolution) system for edge user throughput, edge user frequency utilization and overall system performance It is also an important element in the advanced long-term evolution (LTE-advanced). CoMP refers to multiple geographically separated transmission points cooperating to participate in the data transmission / reception of a user equipment (UE, User Equipment) to improve the signal quality of edge users, increase the coverage of high-speed data rates, and improve the throughput of the cell edge volume or increase...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/02H04W72/12
CPCH04J11/0053
Inventor 李子帅
Owner ZTE CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com