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Energy saving recovery method and system based on S1 interface

A recovery method and system recovery technology, applied in the direction of energy-saving ICT, energy consumption reduction, advanced technology, etc., can solve problems such as abnormality, energy waste, X2 interface disconnection, etc., to improve utilization, ensure normal operation, and ensure benefits Effect

Inactive Publication Date: 2014-12-10
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, for a community where a high-end business area is located, good network coverage and high capacity are required during the day, but during non-working hours at night, there are no or few users in the high-end business area. Maintaining good network coverage and high capacity in the area as during the day will inevitably result in a large waste of energy
[0004] As can be seen from the above description, the current SON energy-saving strategy is mainly to reduce energy consumption by shutting down the cell or reducing the transmit power of the cell. The traditional implementation method is: the eNodeB triggers the adjacent eNodeB to During actual operation, it often happens that after a certain cell on the eNodeB is triggered to enter the energy-saving state, the X2 interface is disconnected or an exception occurs, resulting in the system being unable to perform energy-saving recovery operations on the energy-saving eNodeB through the X2 interface.

Method used

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  • Energy saving recovery method and system based on S1 interface
  • Energy saving recovery method and system based on S1 interface
  • Energy saving recovery method and system based on S1 interface

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0034] In this embodiment, the MME or S-GW directly notifies the eNodeB through the S1 interface to perform energy saving recovery, image 3 It is a schematic diagram of the main system structure of this embodiment, including MME or S-GW and eNodeB. In addition, in this embodiment, the trigger for the eNodeB to enter the energy-saving state is also MME or S-GW, and the specific process is as follows:

[0035]Step 1: The MME or S-GW notifies the eNodeB to enter the energy-saving state through the S1 interface;

[0036] Specifically: the UE in the cell covered by the eNodeB or the neighboring eNodeB of the eNodeB notifies the eNodeB to enter the energy saving state through the MME or S-GW, and the MME or S-GW sends an energy saving message through the S1 interface to notify a cell in the eNodeB to enter the energy saving state state, that is, the transmission of cell power is turned off.

[0037] Here, regarding the UE or the neighboring eNodeB of the eNodeB, the specific proc...

Embodiment 2

[0043] In this embodiment, the adjacent eNodeB indirectly notifies the energy-saving eNodeB to enter the energy-saving recovery state through the MME or S-GW, Figure 4 It is a schematic diagram of the main system structure of this embodiment, assuming eNodeB1 is a base station to enter an energy-saving state, and there are 3 cells on it; eNodeB2 is a triggering base station, and the specific implementation process is as follows:

[0044] Step 1: eNodeB2 notifies eNodeB1 to enter the energy-saving state through the X2 interface, and a cell on eNodeB1 enters the energy-saving state and turns off power transmission;

[0045] The process described in this step is a prior art, and will not be described in detail here.

[0046] Step 2: After eNodeB1 enters the energy-saving state, the X2 interface between eNodeB1 and eNodeB2 is abnormal and disconnected;

[0047] Step 3: With the increase of system service requirements, eNodeB2 enters the load overload state;

[0048] At this tim...

Embodiment 3

[0054] In this embodiment, the adjacent eNodeB indirectly notifies the energy-saving eNodeB to enter the energy-saving recovery state through the underlying transmission link of the S1 interface through the MME or S-GW, and still uses the Figure 4 For example, let eNodeB1 be the base station to enter the energy-saving state, and eNodeB2 be the trigger base station. The specific implementation process is as follows:

[0055] Step 1: eNodeB2 notifies eNodeB1 to enter the energy-saving state through the X2 interface, the cell on eNodeB1 enters the energy-saving state, and shuts down all the cells on eNB1;

[0056] The process described in this step is a prior art, and will not be described in detail here.

[0057] Step 2: After eNodeB1 enters the energy-saving state, the X2 interface between eNodeB1 and eNodeB2 is abnormal and disconnected;

[0058] Step 3: With the increase of system service requirements, eNodeB2 enters the load overload state;

[0059] At this time, the syst...

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Abstract

Disclosed is an S1 interfaced-based method for resuming from power saving mode, comprising: an eNB in power saving mode receiving a resume from power saving mode message via an S1 interface or an S1 interface underlying transmission link (201), then executing an resume from power saving mode operation, and feeding back the result of the resume from power saving mode operation via the S1 interface or the S1 interface underlying transmission link. Also disclosed is an S1 interface-based system for resuming from power saving mode. Employment of the method and the system ensures, during an X2 interface malfunction, the normal operation of resume from power saving mode process.

Description

technical field [0001] The present invention relates to an energy-saving restoration technology in a Long Term Evolution (LTE) system, in particular to an S1 interface-based energy-saving restoration method and system. Background technique [0002] The structure of the existing LTE mobile communication system is as follows: figure 1 As shown, it mainly includes: a core network, an access network and a terminal (UE). Among them, the core network mainly includes a Mobility Management Entity (MME) or a Serving Gateway (S-GW); the access network is composed of multiple evolved base stations (eNodeB). The core network and the access network communicate with each other through the S1 interface, and different eNodeBs in the access network communicate with each other through the X2 interface. [0003] Self-Organized Network (SON) technology is a technology for automatically configuring and optimizing a network. In SON technology, energy saving is a very important requirement, tha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/04H04W52/02
CPCH04W52/0212Y02B60/50Y02D30/70
Inventor 汪长娥
Owner ZTE CORP