CN101742707B - Method for saving energy of network in LTE system - Google Patents
Method for saving energy of network in LTE system Download PDFInfo
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- CN101742707B CN101742707B CN2008102272221A CN200810227222A CN101742707B CN 101742707 B CN101742707 B CN 101742707B CN 2008102272221 A CN2008102272221 A CN 2008102272221A CN 200810227222 A CN200810227222 A CN 200810227222A CN 101742707 B CN101742707 B CN 101742707B
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- energy
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- residential quarter
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- power save
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
- H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a method for saving the energy of a network in a long term evolution mobile communication system and solving the technical problem that the network can not recover from an energy-saving state to a working state in time according to network capacity conditions under an environment of the traditional LTE ad hoc network. In the invention, a certain cell in the energy-saving state can notify a neighbour cell that the cell is in the energy-saving state through an expanded X2 interface message; and when the neighbour cell generates congestion or overload, the neighbour cell notifies the cell in the energy-saving state through an newly increased energy-saving recovery indication message or an expanded X2 interface load indication message. By adopting the method, the cell in the energy-saving state can carry out energy-saving recovery operation in time according to the congestion or overload state of the peripheral neighbour cell when the neighbour cell generates the congestion or the overload so as to ensure network coverage and meet the requirements of network capacity, and the technical effects of meeting the energy-saving requirements of operators without influencing network quality are achieved.
Description
Technical field
The present invention relates to the radio honeycomb mobile communication system, relate in particular to the method for network energy-saving in a kind of Long Term Evolution (LTE) mobile communication system.
Background technology
Among the Open Standard version 3 6300-800 of 3GPP, LTE (Long Term Evolution is described, Long Term Evolution) network is by E-UTRAN (Evolved Universal Terrestrial Radio Access Network, the general continental rise wireless access network of evolution) base station eNB (Evolved NodeB) and evolution packet switching center EPC (Evolved Packet Core) form, the network flattening.Wherein EUTRAN comprises the set of being connected the eNB of S1 interface connection with EPC, can connect by X2 interface between the eNB.S1, X2 are logic interfacing.An EPC can manage one or more eNB, and an eNB also can be controlled by a plurality of EPC, and an eNB can manage one or more residential quarters.
SON (Self-Organized Network, MANET) is a kind of technology of automatically carrying out network configuration and optimization.The characteristics of this technology are the self-configuring self-optimizings, this technology is used in LTE so that LTE base station (eNB) can be according to the automatic configuration network parameter of certain measurement, and carry out Automatic Optimal according to network change, thus keep network performance optimum, save simultaneously a large amount of manpower and materials.
In self-optimizing, it is exactly energy-conservation that a very important demand is arranged and interference reduces, and briefly, the exactly operation by the residential quarter is opened and closed in the situation that does not affect whole network operation reduces presence of intercell interference and reaches energy-conservation purpose.After closing the residential quarter, if untimely recovery can cause the minimizing of network capacity.Cover such as the residential quarter in the working region, need the good network coverage and higher capacity in the time of daytime, and time the evening, if the working region does not have to go back the same keep higher capacity and the good network coverage with daytime in user or the user situation seldom, will certainly cause larger energy waste.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of LTE system's lower network energy-conservation method, be used for solving existing LTE MANET environment lower network can not return to timely according to the network capacity situation operating state from power save mode technical problem, for achieving the above object, technical solution of the present invention is achieved in that
The energy-conservation method of a kind of LTE system's lower network, step is as follows:
A, enter power save mode certain this residential quarter of cell notification adjacent cell its enter power save mode;
B, occur congested or during overload, this generations adjacent cell congested or that transship sends energy-conservation recovery Indication message to described certain residential quarter that enters power save mode when certain adjacent cell of described certain residential quarter that enters power save mode;
C, described certain residential quarter that enters power save mode return to operating state according to described energy-conservation recovery Indication message.
Further, described certain residential quarter that enters power save mode can by dual mode notify adjacent cell its enter power save mode, a kind of is to be directly passed to its adjacent cell by the X2 interface message of expanding, another kind is to pass through adjacent cell by the S1 interface message by MME (Mobility Management Entity, Mobility Management Entity).
Further, the X2 interface message of described expansion refers to that the X2 interface of expanding sets up request message (X2SETUP REQUEST MESSAGE), adds cell status information in the service cell information in this message and is used for sign and whether is in power save mode.
Further, the X2 interface message of described expansion refers to that the X2 interface of expanding sets up response message (X2SETUP RESPONSE MESSAGE), adds cell status information in the service cell information in this message and is used for sign and whether is in power save mode.
Further, the X2 interface message of described expansion refers to the X2 interface base station configuration updating information (ENB CONFIGURATION UPDATE MESSAGE) expanded, adds cell status information in the service cell information in this message and is used for sign and whether is in power save mode.
Further, described energy-conservation recovery Indication message sends to described certain residential quarter that enters power save mode by X2 interface, perhaps sends to MME by the S1 interface, passes through described certain residential quarter that enters power save mode through MME again;
Further, described energy-conservation recovery Indication message comprises target cell information and energy-conservation recovery indication information; Described target cell information is used for the sign Target cell.Described energy-conservation recovery indication information is used for identifying state or degree congested or overload, or is used to indicate the recovery action that Target cell should be carried out.
Described energy-conservation recovery indication information can be used for identifying state or degree congested or overload, an available texture field, in field, identify respectively up and descending congested and load condition or degree, message structure can be as shown in table 1 below, wherein exist situation field hurdle to represent whether cell is essential, the M representative is essential to be existed, and the O representative is optional:
The energy-conservation recovery indication message structure of table 1 example 1
| The cell title | There is situation | Cell type and reference information |
| -〉 type of message | M | |
| -〉 Target cell Global ID | M | The unique identifier in residential quarter |
| -〉 small area jam/overload messages | Whether state or the degree of congested or overload | |
| -〉 uplink congestion/load condition | M/O | |
| -〉 downlink congestion/load condition | M/O |
The recovery action that described energy-conservation recovery indication information can be used for should carrying out the indicating target residential quarter is opened carrier frequency, the rear recovery of waiting for a period of time, is needed the transmitting power size recovered etc. such as example, and message structure can be as shown in the table:
The energy-conservation recovery indication message structure of table 2 example 2
| The cell title | There is situation | Cell type and reference information |
| -〉 type of message | M | |
| -〉 Target cell Global ID | M | The unique identifier in residential quarter |
| -〉 energy-conservation recovery indication | Be used to refer to and recover action |
Further, load Indication message on the X2 interface that the energy-conservation recovery Indication message that described generation certain adjacent cell congested or overload sends to described certain residential quarter that enters power save mode refers to expand, energy-conservation recovery indication information is included in the message structure of this expansion, and the X2 interface of expansion load Indication message is as shown in the table:
The load Indication message of table 3 expansion
| The cell title | There is situation | Cell type and reference information |
| -〉 type of message | M | |
| -〉 cell information | 1 permission in the base station | The largest cell that allows in the base station is individual |
| The largest cell number | Number is 256 | |
| -〉 residential quarter ID | M | The unique identifier in residential quarter |
| -〉 indication of cell uplink interference overload | O | Be used to refer to and recover action |
| -〉 the cell uplink interfere information | M | |
| -〉 the cell downlink power information | M | |
| -〉 energy-conservation recovery indication information | ||
| -〉 exist and indicate | M/O | Available BOOL variable represents that TRUE represents to comprise indication information, and the FALSE sign does not comprise indication information |
| -〉 Target cell ID | C | The unique identifier in residential quarter is designated as TRUE if exist, and then this cell exists |
Further, whether the residential quarter allows to use energy saver mode, can dispose to realize by BTS management according to operator's demand.
Further, after energy-conservation recovery Indication message was handled in described certain residential quarter that enters power save mode, the transmission processing response message was given certain adjacent cell that described generation is congested or transship, if successfully be energy-conservation response success message, sees the following form shown in 4; If unsuccessfully be energy-conservation response failed message, see the following form shown in 5, can comprise failure cause and stand-by period in the failed message.
Table 4 processing response message examples 1
| The cell title | There is situation | Cell type and reference information |
| -〉 type of message | M |
Table 5 processing response message examples 2
| The cell title | There is situation | Cell type and reference information |
| -〉 type of message | M | |
| -〉 failure cause | M | Energy-conservation recovery Indication message is processed failure cause |
| -〉 the stand-by period | O | Again initiate the time that energy-conservation recovery Indication message need to be waited for after processing unsuccessfully |
Further, if describedly enter certain residential quarter of power save mode and described generation is congested or certain adjacent cell of overload belongs to same base station, then by the notice of minizone interacting message realization power save mode and the recovery operation of operating state in the base station.
The present invention is by the interacting message between the base station, can carry out dynamically power-save operation according to network load condition so that be in the residential quarter of power save mode, as automatically entering power save mode when setting thresholding in the subzone network load, and when congested or overload occur in adjacent cell in time according to around the congested or overload of adjacent area carry out energy-conservation recovery operation, guarantee the network coverage, satisfy the network capacity demand, thereby reach the technique effect that does not affect network quality when meeting the energy-conservation demand of operator.
Description of drawings
Fig. 1 is specific embodiment one flow process schematic diagram;
Fig. 2 is specific embodiment two flow process schematic diagrames;
Fig. 3 is specific embodiment three schematic flow sheets.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
The present invention's the first implementation is Fig. 1 for example, comprises base station 1, base station 2 in the network, and residential quarter A belongs to base station 1, and residential quarter B belongs to base station 2, and residential quarter A and residential quarter B be neighboring BS relationship, and concrete steps are as follows:
1, residential quarter A, residential quarter B all work, and exist X2 to connect between base station 1 and the base station 2;
2, residential quarter A is according to energy-conservation demand, when satisfy energy-conservation close condition after, reduce to a certain degree such as number of users in the current area, residential quarter A enters energy saver mode (closing such as cell carrier frequencies), and adjacent area around giving by the X2 interface message informing of expansion, comprise residential quarter B;
3, enter into congested/overload as residential quarter B, residential quarter B sends energy-conservation recovery Indication message by X2 interface to residential quarter A, the notifying cell A state of resuming work.
4, residential quarter A carries out this locality processing after receiving energy-conservation recovery Indication message, and A reworks such as the residential quarter, opens cell carrier frequencies, recovers cell transmit power.
The present invention's the second specific embodiment as shown in Figure 2, the specific implementation step is as follows:
1, residential quarter A, residential quarter B all work;
2, residential quarter A is according to energy-conservation demand, when satisfy energy-conservation close condition after, reduce to a certain degree such as number of users in the current area, residential quarter A enters energy saver mode (closing such as cell carrier frequencies), and notice give around the adjacent area, comprise residential quarter B;
3, enter into congested/overload as residential quarter B, the load Indication message of residential quarter B expansion X2 interface comprises energy-conservation recovery indication information in this message, send the overload Indication message by X2 interface to residential quarter A.
4, after residential quarter A receives the overload Indication message, rework according to the energy-conservation recovery indication information that the inside comprises, such as opening cell carrier frequencies, recover cell transmit power.
The present invention's the 3rd specific embodiment as shown in Figure 3, the specific implementation step is as follows:
1, residential quarter A, residential quarter B all work, and do not set up the X2 connection between base station 1 and the base station 2;
2, residential quarter A is according to energy-conservation demand, when satisfy energy-conservation close condition after, for example number of users reduces to a certain degree in the current area, residential quarter A enters energy saver mode (for example cell carrier frequencies is closed), and notice give around the adjacent area, comprise residential quarter B;
3, enter into congested/overload as residential quarter B, residential quarter B sends energy-conservation recovery Indication message by the S1 interface to MME;
4, MMME receives energy-conservation recovery Indication message, and this message is passed through residential quarter A.
5, residential quarter A carries out this locality processing after receiving energy-conservation recovery Indication message, and for example residential quarter A reworks, and opens cell carrier frequencies, recovers cell transmit power.
In the specific embodiment of the invention, after residential quarter A handles energy-conservation recovery Indication message, can the transmission processing response message to residential quarter B, if successfully be energy-conservation response success message, if unsuccessfully be energy-conservation response failed message.Whether the residential quarter allows to use energy saver mode, can dispose to realize by BTS management according to operator's demand.
The above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.
Claims (8)
1. energy-conservation method of LTE system lower network, enter power save mode its adjacent cell of certain cell notification its enter power save mode; It is characterized in that the method comprises:
When described certain adjacent cell that enters certain residential quarter of power save mode occured congested or transships, this generation adjacent cell congested or overload sent energy-conservation recovery Indication message to described certain residential quarter that enters power save mode;
Described certain residential quarter that enters power save mode is carried out according to described energy-conservation recovery Indication message and is returned to operating state.
2. method according to claim 1 is characterized in that, it enters power save mode described certain residential quarter that enters power save mode its adjacent cell of X2 interface message informing by expansion.
3. method according to claim 2 is characterized in that, the X2 interface message of described expansion refers to that the X2 interface of expanding sets up request message, or X2 interface sets up response message, or the X2 interface base station configuration updating information.
4. method according to claim 1 is characterized in that, described energy-conservation recovery Indication message sends by X2 interface.
5. method according to claim 4 is characterized in that, described energy-conservation recovery Indication message is to realize by the load Indication message on the X2 interface of expansion.
6. method according to claim 1, it is characterized in that, described certain residential quarter that enters power save mode by the S1 interface notify its adjacent cell its enter power save mode, correspondingly, described energy-conservation recovery Indication message also passes through described certain residential quarter that enters power save mode by the S1 interface by Mobility Management Entity.
7. according to claim 1 or 6 described methods, it is characterized in that described energy-conservation recovery Indication message comprises target cell information and energy-conservation recovery indication information; Described target cell information is used for the sign Target cell, and described energy-conservation recovery indication information is used for identifying state or degree congested or overload, or is used to indicate the recovery action that Target cell should be carried out.
8. method according to claim 1, it is characterized in that, after energy-conservation recovery Indication message was handled in described certain residential quarter that enters power save mode, the transmission processing response message was given certain adjacent cell that described generation is congested or transship, and was used for result and the information relevant with the result of feedback processing.
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| CN2008102272221A CN101742707B (en) | 2008-11-25 | 2008-11-25 | Method for saving energy of network in LTE system |
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| CN101742707B true CN101742707B (en) | 2013-05-01 |
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| CN102685862A (en) * | 2009-03-12 | 2012-09-19 | 华为技术有限公司 | Power saving activation method and device |
| CN102244879B (en) * | 2010-05-12 | 2015-12-09 | 电信科学技术研究院 | A kind of method and device realizing Energy Saving Control between network element |
| CN102316561B (en) * | 2010-07-08 | 2015-01-07 | 上海贝尔股份有限公司 | Power-saving method for heterogeneous network and base station |
| CN102083179B (en) * | 2010-08-11 | 2014-04-02 | 电信科学技术研究院 | Control processing method for energy-saving cell and base station |
| CN102083192A (en) * | 2010-08-12 | 2011-06-01 | 大唐移动通信设备有限公司 | Cell energy-saving deactivation method, system and equipment |
| CN102378323B (en) | 2010-08-13 | 2014-12-10 | 电信科学技术研究院 | Energy-saving compensation method and base station |
| CN101964990A (en) * | 2010-08-30 | 2011-02-02 | 华为技术有限公司 | Maximum transmitting power acquisition method, related equipment and communication system |
| CN102083149B (en) * | 2010-09-20 | 2013-06-05 | 电信科学技术研究院 | Method and system for regulating energy saving parameter value as well as equipment |
| CN101964985B (en) * | 2010-09-29 | 2013-11-13 | 中国科学院声学研究所 | Coverage and capacity self-optimization device of self-organization network in LTE/LTE-A and method thereof |
| CN102447545B (en) * | 2010-10-11 | 2014-12-24 | 电信科学技术研究院 | Transmission and processing method, system and device of energy-saving information |
| CN102480773B (en) * | 2010-11-25 | 2015-01-28 | 中兴通讯股份有限公司 | Multicarrier-based communication compensation method and system |
| CN102595564B (en) * | 2011-01-06 | 2016-08-24 | 中兴通讯股份有限公司 | Cell energy-saving method, base station and long evolving system |
| CN102612061B (en) * | 2011-01-19 | 2014-12-10 | 中兴通讯股份有限公司 | Energy saving recovery method and system based on S1 interface |
| CN102612050A (en) * | 2011-01-21 | 2012-07-25 | 中兴通讯股份有限公司 | Method and system for implementing energy-saving recovery failure protection |
| CN102695156B (en) * | 2011-03-25 | 2017-08-25 | 中兴通讯股份有限公司 | The transmission method and system of a kind of communication equipment information |
| CN102833856B (en) * | 2011-06-16 | 2018-04-27 | 中兴通讯股份有限公司 | A kind of power save mode Notification Method and evolution base station |
| WO2012103718A1 (en) * | 2011-06-28 | 2012-08-09 | 华为技术有限公司 | Method and network device for network energy saving |
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| CN103563438B (en) * | 2012-05-18 | 2017-11-17 | 华为技术有限公司 | Communication means, device and system |
| CN114501488A (en) * | 2020-11-13 | 2022-05-13 | 华为技术有限公司 | Network energy-saving management method, device and system |
| WO2024092644A1 (en) * | 2022-11-03 | 2024-05-10 | Apple Inc. | Network energy saving cells and related operations |
| WO2024073965A1 (en) * | 2023-01-06 | 2024-04-11 | Lenovo (Beijing) Ltd. | Cell selection or reselection in energy saving network |
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