CN102378324A - Method and system for controlling energy conservation of Home (e) NodeB, Home (e) NodeB and network element - Google Patents
Method and system for controlling energy conservation of Home (e) NodeB, Home (e) NodeB and network element Download PDFInfo
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- CN102378324A CN102378324A CN2010102546572A CN201010254657A CN102378324A CN 102378324 A CN102378324 A CN 102378324A CN 2010102546572 A CN2010102546572 A CN 2010102546572A CN 201010254657 A CN201010254657 A CN 201010254657A CN 102378324 A CN102378324 A CN 102378324A
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
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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 and system for controlling energy conservation of a Home (e) NodeB (H(e) NB), an H(e) NB and a network element. The method comprises the following steps that: an H(e) NB determines to enter an energy-saving sleeping state; the H(e) NB sends energy-saving state information to an associated network element and enters the energy-saving sleeping state, wherein the energy-saving state information includes an identity of a cell that the H(e) NB is located at and an access mode of the H(e) NB; the associated network element preserves the energy-saving state information; when it is determined that a user wants to be switched to the cell that the H(e) NB is located at, the H(e) NB is activated according to the energy-saving state information. According to the invention, a problem of lots of power consumption of an H(e) NB is solved and it is beneficial for energy conservation and environmental protection. Moreover, the utilization of the method dose not influence normal switching of a user to a cell that the H(e) NB is located at, thereby not influencing user experience.
Description
Technical field
The present invention relates to the radio honeycomb communication field, in particular to a kind of control Home eNodeB method for saving energy, system, Home eNodeB and network element.
Background technology
LTE (Long Term Evolution; Long Term Evolution) network by the evolution base station among the E-UTRAN (Evolved UTRAN, evolution UTRAN) (Evolved NodeB, eNB) and EPC (Evolved Packet Core; The evolution packet switching center) forms the network flattening.Wherein, E-UTRAN comprises the set of the eNB that is connected through the S1 interface with EPC, can connect through X2 between the eNB, and 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 sub-districts.EPC is made up of MME (Mobility Management Entity, mobile management unit) and SGW (Serving Gateway, gateway), PGW (Packet Data Network Gateway, grouped data network gateway).UMTS (Universal Mobile Telecommunications System; Universal Mobile Telecommunications System) by UTRAN (UMTS Terrestrial Radio Access Network; UMTS Terrestrial radio access network) and CN (Core Network; Core net) form, wherein UTRAN is made up of RNC (Radio Network Controller, radio network controller) and base station NodeB.
As depicted in figs. 1 and 2; The Home eNodeB user is through Home eNodeB Access Network (Home (e) NodeB Access Network; H (e) NB AN) be connected to the core net network, wherein, H (e) NB AN is by Home eNodeB (Home (e) NodeB; H (e) NB) and femto gateway (Home (e) NodeB Gateway, H (e) NB GW) is common forms.The function that H (e) NB GW mainly carries out is: the fail safe of checking Home eNodeB, handle the registration and the access control of Home eNodeB, and be responsible for the data of exchcange core net and Home eNodeB.H (e) MS (Home (e) NodeB Management System; The Home eNodeB management system) to Home eNodeB move, maintenance and management; According to Carrier Requirements configuration and control Home eNodeB; Main is that H (e) NB realizes configuration management function, comprising the examining of positional information, carry out parameter configuration for H (e) NB, is mainly concerned with other parameter configuration of CN level, RAN (Radio Access Network; Wireless access network) parameter configuration of the parameter configuration of side and RF (Radio Frequency, less radio-frequency).For Home eNodeB (HeNB) system of evolution, HeNB can directly not be connected with MME through HeNB GW.
Development along with household base station technology; Introduced CSG (Close Subscriber Group; Closed user group) notion; In order to the user is carried out grouping management, the prerequisite that the user belongs to a certain CSG is that its terminal equipment uses IMSI (International Mobile Subscriber Identity, international mobile subscriber identifier) and this CSG to contract.Be accompanied by the introducing of CSG notion, Home eNodeB has been introduced the notion to the CSG access module.Wherein the home base station access mode of CSG has three kinds: be respectively Open (opening) access module, Close (sealing) access module and Hybrid (mixing) access module.Wherein, access module is the Home eNodeB of Open, allows signatory and non-contracted user to insert, and the Home eNodeB of this access module is as good as with normal macrocell; Access module is the Home eNodeB of Close, and only the signatory user of permission and this CSG inserts; And be the Home eNodeB of Hybrid for access module; Though allow signatory and non-contracted user to insert simultaneously; But contracted user's resource is superior to non-contracted user on using; Under the situation of resource anxiety, the Home eNodeB Priority Service might switch to non-contracted user other sub-district or discharge its signaling connection in the contracted user.Wherein judge UE with which kind of identity access network, can insert CSG tabulation (Allowed CSG List) according to the permission of UE and accomplish.Allowing to insert the CSG tabulation is the information list of the signatory all CSG of UE, is stored in network side and UE respectively.If the CSG under the Home eNodeB that UE inserts (being the GSG sign) inserts in the CSG tabulation in the permission of UE, then UE gets into CSG contracted user identity, otherwise the access of UE gets into the signatory identity of non-CSG.
Home eNodeB HeNB is contained among the macrocell usually, because the coverage of HeNB is less, when the member UE that is supported has left the sub-district at HeNB place, the load of sub-district, HeNB place will be very low, and HeNB can be in resting state.Yet no matter when the Home eNodeB in the correlation technique all is in normal operating conditions, causes its power consumption bigger, is unfavorable for energy-conserving and environment-protective.
Summary of the invention
Main purpose of the present invention is to provide a kind of control Home eNodeB method for saving energy, system, Home eNodeB and network element, to solve the above-mentioned bigger problem of Home eNodeB power consumption.
According to an aspect of the present invention, a kind of control Home eNodeB method for saving energy is provided, has comprised: the Home eNodeB decision gets into energy-conservation resting state; Home eNodeB sends power save mode information to associated NE, gets into energy-conservation resting state; Wherein, power save mode information comprises: the cell ID of sub-district, Home eNodeB place and the access module of Home eNodeB; Associated NE is preserved power save mode information, when defining the user and desire to switch to sub-district, Home eNodeB place, according to power save mode information activation Home eNodeB.
According to a further aspect in the invention, a kind of Home eNodeB is provided, has comprised: energy-conservation decision module is used for decision and gets into energy-conservation resting state; The energy conservation starting module after being used for the decision of energy-conservation decision module and getting into energy-conservation resting state, is sent power save mode information to associated NE, gets into energy-conservation resting state; Wherein, power save mode information comprises: the cell ID of sub-district, Home eNodeB place and the access module of Home eNodeB.
According to another aspect of the invention, a kind of network element is provided, has comprised: received and the preservation module, be used to receive power save mode information, preserve power save mode information from Home eNodeB; Wherein, power save mode information comprises: the cell ID of sub-district, Home eNodeB place and the access module of Home eNodeB; Active module is used for when defining the user and desire to switch to sub-district, Home eNodeB place, according to power save mode information activation Home eNodeB.
In accordance with a further aspect of the present invention, a kind of energy-conservation system of Home eNodeB that controls is provided, has comprised above-mentioned Home eNodeB, also comprised above-mentioned network element, wherein, this network element is as the associated NE of this Home eNodeB.
Through the present invention; When adopting the Home eNodeB decision to get into energy-conservation resting state, earlier power save mode information is sent to associated NE, associated NE activates this Home eNodeB according to this power save mode information in the suitable moment again; Solve the bigger problem of Home eNodeB power consumption, be beneficial to energy-conserving and environment-protective.And this mode can not influence the user and normally switch to this sub-district, Home eNodeB place, does not therefore influence user experience.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the HNB network structure according to correlation technique;
Fig. 2 is the another kind of HNB network structure according to correlation technique;
Fig. 3 is the control Home eNodeB method for saving energy flow chart according to the embodiment of the invention;
Fig. 4 is according to the HeNB of the embodiment of the invention one and eNB distribution schematic diagram;
Fig. 5 is the control Home eNodeB method for saving energy flow chart according to the embodiment of the invention one;
Fig. 6 is the control Home eNodeB method for saving energy flow chart according to the embodiment of the invention two;
Fig. 7 is the control Home eNodeB method for saving energy flow chart according to the embodiment of the invention three;
Fig. 8 is the HeNB dense distribution scene sketch map according to the embodiment of the invention four;
Fig. 9 is the control Home eNodeB method for saving energy flow chart according to the embodiment of the invention four;
Figure 10 is the structured flowchart according to the Home eNodeB of the embodiment of the invention five;
Figure 11 is the structured flowchart according to the network element of the embodiment of the invention six;
Figure 12 is according to the energy-conservation system architecture diagram of the control Home eNodeB of the embodiment of the invention seven.
Embodiment
Hereinafter will and combine embodiment to specify the present invention with reference to accompanying drawing.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
When the member UE that the Home eNodeB in the embodiment of the invention is supported has left the sub-district at this Home eNodeB place; When perhaps this Home eNodeB does not distribute any resource for member UE; This Home eNodeB can be considered to close the sub-district and got into energy-conservation resting state, normally gets into this sub-district in order not influence other users, and this Home eNodeB is notified energy-conservation sleep state information to associated NE (for example; The neighbours base station, the home gateway of this Home eNodeB or the network element in the core net).Based on this, the embodiment of the invention provides a kind of control Home eNodeB method for saving energy, system, Home eNodeB and network element.
Fig. 3 shows a kind of control Home eNodeB method for saving energy flow chart according to the embodiment of the invention, and this method may further comprise the steps:
Step S302: the Home eNodeB decision gets into energy-conservation resting state;
Whether Home eNodeB can get into energy-conservation resting state according to the judgement of current resource distribution condition; For example Home eNodeB finds that through measuring this sub-district is when preload very low (for example being lower than a designated value); Or this Home eNodeB not distribute any resource be UE when service; Judgement can get into energy-conservation resting state, also can adjudicate according to other conditions, for example hardware consumption degree etc.
Step S304: this Home eNodeB sends power save mode information to associated NE, gets into power save mode; Wherein, power save mode information comprises: the cell ID of this sub-district, Home eNodeB place and the access module of this Home eNodeB;
Wherein, the access module of Home eNodeB has three kinds: be respectively Open (opening) access module, Close (sealing) access module and Hybrid (mixing) access module.
Above-mentioned three kinds of patterns are associated with the access the way of restraint of base station to UE, and for example: the sub-district at the Home eNodeB place of open access module can be called open (open) sub-district, and open sub-district is the same with the characteristic of macrocell, and all UE can insert; The sub-district at the Home eNodeB place of sealing access module can be called sealing (Close) sub-district, and the sealing sub-district has only the member UE of sub-district to insert.The sub-district of mixing the Home eNodeB place of access module can be called mixing (Hybrid) sub-district; Mixed cell allow the contracted user (refer to Home eNodeB under the signatory user of GSG) with non-contracted user (refer to Home eNodeB under GSG not have the user that contracts) access; But contracted user's priority is higher than non-contracted user's priority; Promptly be that grand UE and CSG UE can insert, but CSG UE preferentially insert.
When the family base station gets into energy-conservation resting state; And the HeNB or the eNB of adjacent area have been notified; Because the access module of HeNB has above-mentioned three kinds of patterns, when this HeNB was Close (sealing) access module, not all UE can enter into the sub-district, HeNB place that is under the energy-conservation resting state.When the cell load of neighbours base station overweight; In the time of need being balanced to part UE other sub-districts or UE arranged near the HeNB of this energy-conservation resting state zone; If UE is not the member UE of this HeNB sub-district,, still can not solve the overweight problem of cell load even wake this HeNB up.So in this case, consider to be not suitable for activating this HeNB from energy-conservation angle.Therefore, the Home eNodeB of present embodiment has comprised the access module of this Home eNodeB when sending power save mode information, and the CSG of Home eNodeB sign.
When between family base station and the associated NE direct interface being arranged, Home eNodeB can send the message that carries above-mentioned power save mode information through this direct interface to associated NE.There is not direct interface to link to each other when between family base station and the associated NE, but when linking to each other through mobile management unit; Home eNodeB can send the message that carries power save mode information through mobile management unit to associated NE.
Wherein, the message that carries power save mode information can be packaged into data packets, and this data packets is transferred to associated NE with the transparent transmission mode.
The above-mentioned message that carries power save mode information can be base station configuration updating information (eNB Configuration Update) or base station configuration message transfer (eNBConfiguration Transfer); Perhaps; Also can be self-defined one be exclusively used in the message of sending above-mentioned power save mode information; At this moment; This power save mode information comprises: indicating cell is the identification information of closed condition, is in energy-conservation resting state in order to the Home eNodeB that shows the sub-district of indicating in this message, also comprises the cell ID of this sub-district, Home eNodeB place and the access module of this Home eNodeB.
Step S306: this associated NE is preserved above-mentioned power save mode information, when defining the user and desire to switch to sub-district, this Home eNodeB place, according to above-mentioned this Home eNodeB of power save mode information activation.
Associated NE can define the user according to one of following at least situation and desire to switch to sub-district, Home eNodeB place:
1) associated NE receives the approaching indication from the user, includes the cell ID that this Home eNodeB belongs to the sub-district near indication, and then definite this user desires to switch to this sub-district, Home eNodeB place;
2) load of associated NE surpasses the first permission thresholding, confirms that the designated user under the associated NE desires to switch to this sub-district, Home eNodeB place;
3) associated NE knows that the neighbours base station load of Home eNodeB in the management area surpasses second and allows thresholding, confirms that the designated user under this neighbours base station desires to switch to this sub-district, Home eNodeB place.
Associated NE defines the user desire to switch to sub-district, Home eNodeB place after, this Home eNodeB of power save mode information activation that then can send according to this Home eNodeB.
In order to make associated NE carry out activation manipulation according to actual conditions; When the access module of family base station was sealing access module or mixing access module, also comprise in the above-mentioned power save mode information that Home eNodeB sends: the GSG of GSG identified under this Home eNodeB; Associated NE comprises following two kinds of situation according to this Home eNodeB of power save mode information activation:
1) associated NE confirms that the access module of this Home eNodeB is open access module, then directly activates this Home eNodeB;
2) associated NE confirms that the access module of this Home eNodeB perhaps mixes access module for the sealing access module; And desire to switch to the contracted user of the user of this sub-district, Home eNodeB place according to the user near this Home eNodeB and definite this of above-mentioned GSG sign, activate this Home eNodeB again for above-mentioned Home eNodeB.
The access module of Home eNodeB can not checked also whether the user who desires to switch to sub-district, Home eNodeB place is the contracted user of this Home eNodeB, but directly just activate this Home eNodeB when mixing access module.
This Home eNodeB gets into energy-conservation resting state, can promptly by Home eNodeB self decision, notify associated NE power save mode information certainly then according to the method described above.
Perhaps, when Home eNodeB gets into energy-conservation resting state in decision, ask to confirm to associated NE earlier, wait to receive the power save mode information that reinforms neighbor base station oneself after the acknowledge message, get into energy-conservation resting state then.Based on this, Home eNodeB can also comprise before associated NE sends power save mode information: Home eNodeB sends the power save mode request message to associated NE; After Home eNodeB is received the power save mode acknowledge message of associated NE answer, send power save mode information to associated NE.Wherein, associated NE can be for one of following: the network element in the core net that the macro base station at this Home eNodeB place, the home gateway of this Home eNodeB or this Home eNodeB connect.
According to actual needs, above-mentioned power save mode information can comprise the power save mode (for example, information is closed or opened in the sub-district) of sub-district, cell ID, the CSG sign of sub-district, switch-in attribute (being above-mentioned access module).
When the Home eNodeB of present embodiment determines to get into energy-conservation resting state under certain condition; Earlier power save mode information is sent to associated NE; Associated NE activates this Home eNodeB according to this power save mode information in the suitable moment again; Solve the bigger problem of Home eNodeB power consumption, be beneficial to energy-conserving and environment-protective.And this mode can not influence the user and normally switch to this sub-district, Home eNodeB place, does not therefore influence user experience.
Embodiment one
When the Home eNodeB decision of present embodiment gets into power save mode; Notify Home eNodeB with power save mode information to neighbours; Present embodiment is that example describes with the scene of Home eNodeB scattered distribution under macro base station eNB shown in Figure 4, and the switch-in attribute of Home eNodeB HeNB A is the sealing access module, and the sub-district at its place is the sealing sub-district; The switch-in attribute of the Home eNodeB HeNB B of adjacent area is for the sealing access module or mix access module, and its sub-district, place is sealing sub-district or mixed cell.Referring to control Home eNodeB method for saving energy flow chart shown in Figure 5, this method may further comprise the steps:
Step S502: Home eNodeB A measure to find that this sub-district is very low or not distribute any resource be the UE service when preload, and Home eNodeB A decision gets into energy-conservation resting state.
Step S504: Home eNodeB A before preparing to get into energy saver mode, sends power save mode notification message to the Home eNodeB B of adjacent area in order to let the adjacent area know that oneself has got into energy saver mode, and this message carries power save mode information.
If between Home eNodeB A and the Home eNodeB B direct interface is arranged, Home eNodeB A just notifies the power save mode information of Home eNodeB B oneself through X2 mouth eNB Configuration Update (base station configuration updating information).
If do not have direct interface between Home eNodeB A and the Home eNodeB B; Base station A is through S1 mouth eNB Configuration Transfer (base station configuration message transfer) or eNB Configuration Update; Perhaps specific messages notifies that (perhaps Home eNodeB A sends to HeNB GW earlier to MME power save mode information; Be transmitted to MME again); Through MME Configuration Transfer (MME dispose message transfer) or MME Configuration Update, perhaps notify the power save mode information of Home eNodeB A to Home eNodeB B (perhaps through HeNB GW be transmitted to Home eNodeB B) again again by specific messages for MME.
The power save mode information of Home eNodeB A can comprise sign (cell ID of sub-district, Home eNodeB A place just) and the Access Mode (access module of Home eNodeB A; Present embodiment is the sealing access module); Can also further comprise as required: information is closed or opened in the sub-district, CSG ID (GSG sign).
Preferably, the power save mode information of Home eNodeB A can adopt the form transparent transmission of data packets (as: independently Container cell) to send between base station and gateway or core net.
Step S506: after Home eNodeB B receives the power save mode information of Home eNodeB A, known that neighbor base station A is in energy-conservation resting state.When the CSG UE among the base station B of family will be near Home eNodeB A; UE sends near indication (PI for Home eNodeB B; After the cell ID that can contain Home eNodeB A during Proximity Indicator) PI indicates, Home eNodeB B were received the PI indication, Home eNodeB B was according to the CSG ID that self supports; Home eNodeB B learns that from resulting power save mode information Home eNodeB A is park mode now; And Home eNodeB A also is the sealing access module, and the CSG ID attribute of Home eNodeB A is consistent with Home eNodeB B's, initiates energy-conservation wakeup message just for Home eNodeB A.
Step S508: after Home eNodeB A receives energy-conservation wakeup message, carry out activation manipulation.
Step S510: Home eNodeB A sends the sub-district to Home eNodeB B and wakes acknowledge message up after activating.Afterwards, UE measures the signal message of Home eNodeB A, if satisfy switching condition, UE just can switch among the Home eNodeB A.
The Home eNodeB A of present embodiment gets into before the park mode; Power save mode information is notified to neighbours' Home eNodeB B; For UE among the follow-up Home eNodeB B switches to Home eNodeB A effective guarantee is provided; Alleviate the heavier problem of load of Home eNodeB B, and reduced the energy consumption of Home eNodeB A to a certain extent, be beneficial to energy-conserving and environment-protective.
Embodiment two
When the Home eNodeB decision of present embodiment gets into power save mode; Power save mode information is notified to macro base station; Present embodiment is that example describes with the scene of Home eNodeB scattered distribution under macro base station eNB shown in Figure 4, and the switch-in attribute of Home eNodeB HeNB A is for mixing access module or open access module.Referring to control Home eNodeB method for saving energy flow chart shown in Figure 6, this method may further comprise the steps:
Step S602: Home eNodeB A measure to find that this sub-district is very low or not distribute any resource be the UE service when preload, and Home eNodeB A decision gets into energy-conservation resting state.
Step S604: Home eNodeB A is in order to let the adjacent area know that oneself has got into energy saver mode, and before preparing to get into energy saver mode, the macro base station to Home eNodeB A place sends the power save mode notification message, and this message carries power save mode information.
If between Home eNodeB A and the macro base station direct interface is arranged, Home eNodeB A just passes through the power save mode information of the eNB Configuration Update message informing Home eNodeB B oneself of X2 mouth.
If do not have direct interface between Home eNodeB A and the macro base station; Home eNodeB A is through S1 mouth eNB Configuration Transfer message (perhaps eNB Configuration Update; Perhaps specific messages) notifies that (perhaps Home eNodeB A sends to HeNB GW earlier to MME power save mode information; Be transmitted to MME again); MME notifies the power save mode information of Home eNodeB A to macro base station through MME Configuration Transfer (perhaps MME Configuration Update, perhaps specific messages) more again.
The power save mode information of Home eNodeB A can comprise sign (cell ID of sub-district, Home eNodeB A place just) and the Access Mode (access module of Home eNodeB A; Present embodiment is the sealing access module); Can also further comprise as required: information is closed or opened in the sub-district, CSG ID (GSG sign).
Preferably, the power save mode information of base station A can adopt the form transparent transmission of data packets (as: independently Container cell) to send between base station and gateway or core net.
Step S606: after macro base station receives the power save mode information of base station A, known that the Home eNodeB A of region is in energy-conservation resting state.When the load in the macro base station is higher, consider that the Home eNodeB A under the region is in resting state, and the access module of Home eNodeB A is just initiated energy-conservation wakeup message to Home eNodeB A for mixing access module or open access module.
Step S608: after Home eNodeB A receives energy-conservation wakeup message, carry out activation manipulation.
Step S610: Home eNodeB A sends the sub-district to macro base station and wakes acknowledge message up after activating.Afterwards, near the UE Home eNodeB A no matter be that CSG UE (signatory UE) or non-CSG UE (non-CSG contract UE) can temporarily switch among the Home eNodeB A, thereby the load under the macro base station is eased.
The Home eNodeB A of present embodiment gets into before the park mode; Power save mode information is notified to macro base station; For UE in the follow-up macro base station switches to Home eNodeB A effective guarantee is provided; Alleviate the heavier problem of load of macro base station, and reduced the energy consumption of Home eNodeB A to a certain extent, be beneficial to energy-conserving and environment-protective.
Embodiment three
When the Home eNodeB decision of present embodiment gets into power save mode, power save mode information is notified to macro base station, UE wakes Home eNodeB up through the PI indication.Present embodiment is that example describes with the scene of Home eNodeB scattered distribution under macro base station eNB shown in Figure 4, and referring to control Home eNodeB method for saving energy flow chart shown in Figure 7, this method may further comprise the steps:
Step S702: Home eNodeB A measure to find that this sub-district is very low or not distribute any resource be the UE service when preload, and Home eNodeB A decision gets into energy-conservation resting state.
Step S704: Home eNodeB A needs the affirmation of macro base station in order to enter into park mode.Home eNodeB A sends the power save mode request message through X2 mouth or S1 mouth to macro base station; The power save mode request message can also comprise: get into energy-conservation request indication; The sign of sub-district; Whether the access module of sub-district is with allowing this Home eNodeB to carry out energy-conservation resting state so that macro base station is adjudicated.
Step S706: after macro base station is received the power save mode request message, analyze Home eNodeB A and whether can get into energy saver mode;
For example: being in when medium or too high when preload of the sub-district that macro base station eNB is managed in order to alleviate the load of eNB sub-district to a certain extent, can make this Home eNodeB HeNB temporarily not get into power save mode.
Step S708: macro base station confirms that Home eNodeB A can get into energy saver mode, replys the power save mode acknowledge message for Home eNodeB A; Otherwise, send refuse information to Home eNodeB A;
Step S710: after Home eNodeB A receives above-mentioned power save mode acknowledge message, send the power save mode notification message to macro base station, this message carries power save mode information.Get into energy-conservation resting state then.Otherwise if macro base station is replied refuse information, then Home eNodeB can not get into energy-conservation resting state.
If between Home eNodeB A and the macro base station direct interface is arranged, Home eNodeB A just passes through the power save mode information of the eNB Configuration Update message informing Home eNodeB B oneself of X2 mouth.
If do not have direct interface between Home eNodeB A and the macro base station; Home eNodeB A is through S1 mouth eNB Configuration Transfer message (perhaps eNB Configuration Update; Perhaps specific messages) notifies that (perhaps Home eNodeB A sends to HeNB GW earlier to MME power save mode information; Be transmitted to MME again); MME notifies the power save mode information of Home eNodeB A to macro base station through MME Configuration Transfer (perhaps MME Configuration Update, perhaps specific messages) more again.
The power save mode information of above-mentioned Home eNodeB A can comprise sign (cell ID of sub-district, Home eNodeB A place just) and the Access Mode (access module of Home eNodeB A; Present embodiment is the sealing access module); Can also further comprise as required: information is closed or opened in the sub-district, CSG ID (GSG sign).
Preferably, the power save mode information of Home eNodeB A can adopt the form transparent transmission of data packets (as: independently Container cell) to send between base station and gateway or core net.
Step S712: after macro base station receives the power save mode information of Home eNodeB A, known that neighbor base station A is in energy-conservation resting state.When the CSG UE in the macro base station will be near base station A; UE sends the PI indication to macro base station; The cell ID that can contain Home eNodeB A in the PI indication; After macro base station was received the PI indication, macro base station learnt that from resulting power save mode information Home eNodeB A is park mode now, just initiates energy-conservation wakeup message to Home eNodeB A.
Step S714: after Home eNodeB A receives energy-conservation wakeup message, carry out activation manipulation.
Step S716: Home eNodeB A sends the sub-district to macro base station and wakes acknowledge message up after activating.Afterwards, near the UE Home eNodeB A just can switch among the Home eNodeB A.
The Home eNodeB A of present embodiment gets into before the park mode; Confirm earlier to macro base station, obtain the affirmation of macro base station after, power save mode information is notified to macro base station; For UE in the follow-up macro base station switches to Home eNodeB A effective guarantee is provided; Alleviate the heavier problem of load of macro base station, and reduced the energy consumption of Home eNodeB A to a certain extent, be beneficial to energy-conserving and environment-protective.
Embodiment four
When the Home eNodeB decision of present embodiment gets into power save mode, power save mode information is notified to home gateway (or MME of core net).Present embodiment is that example describes with the scene of Home eNodeB layout comparatively dense layout shown in Figure 8, and HeNB GW manages a plurality of HeNB.Referring to control Home eNodeB method for saving energy flow chart shown in Figure 9, this method may further comprise the steps:
Step S902: Home eNodeB A measure to find that this sub-district is very low or not distribute any resource be the UE service when preload, and Home eNodeB A decision gets into energy-conservation resting state.
Step S904: Home eNodeB A decision gets into energy-conservation resting state, sends the power save mode notification message to home gateway, and this message carries power save mode information.This step can realize through following approach:
A: Home eNodeB A needs the affirmation of home gateway in order to enter into park mode.Home eNodeB A send to get into the power save mode request message through the S1 mouth to home gateway, treat that home gateway replys for base station A to confirm to get into power save mode message after, base station A sends a notification message to home gateway again.Get into energy-conservation resting state then.Otherwise home gateway is replied refuse information, and then Home eNodeB A can not get into energy-conservation resting state.
B: Home eNodeB A can self determine to get into energy-conservation resting state, directly notifies the power save mode information of home gateway self then.
The Home eNodeB A of present embodiment can pass through S1 mouth eNB Configuration Transfer message (perhaps eNB Configuration Update; Perhaps specific messages) notifies power save mode information to HeNB GW (perhaps Home eNodeB A sends to HeNB GW to power save mode information earlier, is transmitted to MME again).
The power save mode information of above-mentioned Home eNodeB A can comprise sign (cell ID of sub-district, Home eNodeB A place just) and the Access Mode (access module of Home eNodeB A; Present embodiment is the sealing access module); Can also further comprise as required: information is closed or opened in the sub-district, CSG ID (GSG sign).
Preferably, the power save mode information of Home eNodeB A can adopt the form transparent transmission of data packets (as: independently Container cell) to send between base station and gateway or core net.
Step S906: after home gateway (or MME) receives the power save mode information of Home eNodeB A; The Home eNodeB A of having known the management area, place is in energy-conservation resting state; When defining the user and desire to switch to sub-district, Home eNodeB A place; Send energy-conservation wake request message to Home eNodeB A, this step can realize in the following manner:
A: home gateway requires the Home eNodeB under the management area periodically to report information on load and positional information; When the load of the base station B of family was higher, home gateway knew that according to the positional information of Home eNodeB B neighbours base station A is in resting state now; Again according to the access module of Home eNodeB A; If Home eNodeB A mixes hybrid or open open access module, home gateway can wake Home eNodeB A up, comes the load under the balanced Home eNodeB B.If Home eNodeB A is a sealing close access module, Home eNodeB A has identical CSG ID with Home eNodeB B, and home gateway also wakes Home eNodeB A up.Home gateway wakes the dormant cell under the A of Home eNodeB base station up through the S1 mouth.
B: as the UE among the B of neighbours base station during near Home eNodeB A, UE sends the PI indication for base station B, contains the sign of Home eNodeB A in the PI indication.After base station B receives the PI indication, send the request acknowledge message to home gateway again, after home gateway is received request message, find that the Home eNodeB A that UE is about to get into is in resting state.Home gateway wakes the dormant cell under the Home eNodeB A up through the S1 mouth.
Step S908: after Home eNodeB A receives energy-conservation wakeup message, carry out activation manipulation.
Step S910: Home eNodeB A sends the sub-district to home gateway and wakes acknowledge message up after activating.Afterwards, the UE under the neighbours base station just can be balanced to Home eNodeB A or normally switch to Home eNodeB A.
The Home eNodeB A of present embodiment gets into before the park mode; Power save mode information is notified to home gateway; For the load balancing in the follow-up home gateway and UE switch to Home eNodeB A effective guarantee is provided; Alleviate the heavier problem of neighbours base station load, and reduced the energy consumption of Home eNodeB A to a certain extent, be beneficial to energy-conserving and environment-protective.
Embodiment five
Figure 10 shows the structured flowchart according to a kind of Home eNodeB of the embodiment of the invention, and this Home eNodeB comprises:
Energy-conservation decision module 12 is used for decision and gets into energy-conservation resting state;
Whether energy-conservation decision module 12 can get into energy-conservation resting state according to the judgement of current resource distribution condition; For example find that through measuring this sub-district is when preload very low (for example being lower than a designated value); Or this Home eNodeB not distribute any resource be UE when service; Judgement can get into energy-conservation resting state, and other situation judgements can not get into energy-conservation resting state.
Energy conservation starting module 14 is connected to energy-conservation decision module 12, after being used for 12 decisions of energy-conservation decision module and getting into energy-conservation resting state, sends power save mode information to associated NE, gets into energy-conservation resting state; Wherein, power save mode information comprises: the cell ID of sub-district, Home eNodeB place and the access module of Home eNodeB.
When associated NE when being one of following: the network element (for example MME) in the core net that the macro base station at Home eNodeB place, the home gateway of Home eNodeB or Home eNodeB connect.Above-mentioned energy conservation starting module 14 can also comprise:
Energy-conservation request unit after being used for 12 decisions of energy-conservation decision module and getting into energy-conservation resting state, sends the power save mode request message to associated NE;
The power save mode information transmitting unit after being used to receive the power save mode acknowledge message of associated NE answer, is sent power save mode information to associated NE;
The energy conservation starting unit links to each other with the power save mode information transmitting unit, is used to get into energy-conservation resting state.
Preferably, when the power save mode information transmitting unit confirmed that the access module of Home eNodeB is sealing access module or mixing access module, the power save mode information of transmission also comprised: the GSG sign of the closed user group GSG under the Home eNodeB.Based on this, associated NE can activate Home eNodeB by following mode: associated NE confirms that the access module of Home eNodeB for open access module, directly activates this Home eNodeB; Associated NE confirms that the access module of this Home eNodeB is mixing access module or sealing access module, and confirms that near this Home eNodeB and above-mentioned GSG sign the user that desire is switched is the contracted user of above-mentioned Home eNodeB according to the user, activates this Home eNodeB again.
When between the Home eNodeB of present embodiment and the associated NE direct interface being arranged, Home eNodeB can send the message that carries power save mode information through this direct interface to associated NE.Home eNodeB and associated NE do not have direct interface, but when linking to each other through mobile management unit, Home eNodeB can send the message that carry power save mode information through this mobile management unit to associated NE.
Preferably, the message that carries power save mode information can be packaged into data packets, and this data packets is transferred to associated NE with the transparent transmission mode.This message that carries power save mode information is base station configuration updating information or base station configuration message transfer; During this situation; Above-mentioned power save mode information can also comprise: indicating cell is the identification information of closed condition, is about to get into energy-conservation resting state in order to the sub-district of indicating in this message to be described.
The Home eNodeB of present embodiment gets into before the park mode; Power save mode information is notified to associated NE; For the load balancing in the subsequent association network element and UE switch to Home eNodeB effective guarantee is provided; Alleviate the heavier problem of neighbours base station load, and reduced the energy consumption of Home eNodeB to a certain extent, be beneficial to energy-conserving and environment-protective.
Embodiment six
Figure 11 shows the structured flowchart according to a kind of network element of the embodiment of the invention, and this network element comprises:
Receive and preservation module 22, be used to receive power save mode information, preserve this power save mode information from Home eNodeB; Wherein, power save mode information comprises: state the cell ID of sub-district, Home eNodeB place and the access module of Home eNodeB;
Preferably, receive with the power save mode information of preserving module 22 receptions and can also comprise: the GSG sign of the closed user group GSG under this Home eNodeB; Active module 24 comprises:
The user confirms the unit, is used to define the user and desires to switch to sub-district, Home eNodeB place;
Pattern determining unit confirms that with the user unit links to each other, and is used for confirming according to power save mode information the access module of Home eNodeB;
The first activation unit links to each other with pattern determining unit, is used for pattern determining unit and confirms that the access module of this Home eNodeB is open access module, activates this Home eNodeB;
The second activation unit; Link to each other with pattern determining unit; Be used for access module that pattern determining unit confirms this Home eNodeB for mixing access module or sealing access module, and the user confirms that near this Home eNodeB with according to the GSG sign user is the contracted user of GSG, activate this Home eNodeB.
Preferably, the user to confirm that the unit comprises at least one of following:
First user confirms the unit, is used to receive the approaching indication from the user, and this includes cell ID that Home eNodeB belongs to the sub-district near indication, confirms that this user desires to switch to Home eNodeB and belongs to the sub-district;
Second user confirms the unit, and the load that is used for this network element surpasses first and allows thresholding, confirms that the designated user under this network element desires to switch to sub-district, Home eNodeB place;
The 3rd user confirms the unit, is used for knowing that the neighbours base station load of management area Home eNodeB surpasses the second permission thresholding, confirms that the designated user under this neighbours base station desires to switch to sub-district, Home eNodeB place.
Wherein, first allow thresholding and second to allow thresholding to set according to actual conditions.
The network element of present embodiment can be for the network element in the home gateway of the macro base station at the neighbours base station of Home eNodeB, Home eNodeB place, Home eNodeB or the core net that Home eNodeB connects etc.
The network element of present embodiment confirms to activate in the suitable moment Home eNodeB of park mode according to the power save mode information of Home eNodeB; With the OL problem in the neighbours base station of alleviating Home eNodeB; For UE switches to Home eNodeB effective guarantee is provided simultaneously; Reduce the energy consumption of Home eNodeB to a certain extent, be beneficial to energy-conserving and environment-protective.
Embodiment seven
Figure 12 shows a kind of structured flowchart of controlling the energy-conservation system of Home eNodeB according to the embodiment of the invention; This system comprises Home eNodeB 10 and network element 20; This network element 20 is as the associated NE of Home eNodeB 10, and wherein, Home eNodeB 10 can adopt the Home eNodeB among the embodiment five to realize; Network element 20 can adopt the network element among the embodiment six to realize, repeats no more here.
When the Home eNodeB of present embodiment determines to get into energy-conservation resting state under certain condition; Earlier power save mode information is sent to associated NE; Associated NE activates this Home eNodeB according to this power save mode information in the suitable moment again; Solve the bigger problem of Home eNodeB power consumption, be beneficial to energy-conserving and environment-protective.And this mode can not influence the user and normally switch to this sub-district, Home eNodeB place, does not therefore influence user experience.
The HeNB of above embodiment through energy-conservation resting state notifies the attribute information of sub-district (being power save mode information) to adjacent area (perhaps gateway; Core net); Make neighbor base station (perhaps gateway, core net) know the attribute information of energy-conservation sub-district, be convenient to follow-up rationally waking up and managing HeNB.
Obviously, it is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element; Thereby; Can they be stored in the storage device and carry out, and in some cases, can carry out step shown or that describe with the order that is different from here by calculation element; Perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (17)
1. a control Home eNodeB method for saving energy is characterized in that, comprising:
The Home eNodeB decision gets into energy-conservation resting state;
Said Home eNodeB sends power save mode information to associated NE, gets into energy-conservation resting state; Wherein, said power save mode information comprises: the cell ID of sub-district, said Home eNodeB place and the access module of said Home eNodeB;
Said associated NE is preserved said power save mode information, when defining the user and desire to switch to sub-district, said Home eNodeB place, according to the said Home eNodeB of said power save mode information activation.
2. method according to claim 1 is characterized in that, said Home eNodeB also comprised before said associated NE sends power save mode information:
Said Home eNodeB sends the power save mode request message to said associated NE;
Said Home eNodeB sends power save mode information to said associated NE after receiving the power save mode acknowledge message of said associated NE answer.
3. method according to claim 2 is characterized in that, said associated NE is one of following: the network element in the macro base station at said Home eNodeB place, the home gateway of said Home eNodeB or the core net that said Home eNodeB connects.
4. method according to claim 1 is characterized in that, the access module of said Home eNodeB is for the sealing access module or mix access module; Said power save mode information also comprises: the GSG sign of the closed user group GSG under the said Home eNodeB;
Comprise according to the said Home eNodeB of said power save mode information activation:
Said associated NE confirms that the access module of said Home eNodeB for open access module, activates said Home eNodeB;
Said associated NE confirms that the access module of said Home eNodeB is sealing access module or mixing access module; And confirm that near the GSG sign of said Home eNodeB and said Home eNodeB said user is the contracted user of said Home eNodeB according to the user, activate said Home eNodeB.
5. method according to claim 1 is characterized in that, between said Home eNodeB and the said associated NE direct interface is arranged;
Said Home eNodeB sends power save mode information to associated NE and comprises: said Home eNodeB sends the message that carries said power save mode information through said direct interface to associated NE.
6. method according to claim 1 is characterized in that, said Home eNodeB links to each other through mobile management unit with said associated NE;
Said Home eNodeB sends power save mode information to associated NE and comprises: said Home eNodeB sends the message that carries said power save mode information through said mobile management unit to associated NE.
7. according to claim 5 or 6 described methods, it is characterized in that the said message that carries said power save mode information is packaged into data packets, said data packets is transferred to associated NE with the transparent transmission mode.
8. according to claim 5 or 6 described methods; It is characterized in that; The said message that carries said power save mode information is base station configuration updating information or base station configuration message transfer, and said power save mode information also comprises: indicating cell is the identification information of closed condition.
9. according to each described method in the claim 1 to 6, it is characterized in that said associated NE defines the user and desires to switch to sub-district, said Home eNodeB place and comprise one of following at least:
Said associated NE receives the approaching indication from the user, and is said near indicating the cell ID that includes sub-district, said Home eNodeB place, confirms that said user desires to switch to said Home eNodeB and belongs to the sub-district;
The load of said associated NE surpasses first and allows thresholding, confirms that the designated user under the said associated NE desires to switch to sub-district, said Home eNodeB place;
Said associated NE knows that the neighbours base station load of Home eNodeB described in the management area surpasses second and allows thresholding, confirms that the designated user under the said neighbours base station desires to switch to sub-district, said Home eNodeB place.
10. according to each described method in the claim 1,4 to 6, it is characterized in that,
Said associated NE is the neighbours base station of said Home eNodeB.
11. a Home eNodeB is characterized in that, comprising:
Energy-conservation decision module is used for decision and gets into energy-conservation resting state;
The energy conservation starting module after being used for said energy-conservation decision module decision and getting into energy-conservation resting state, is sent power save mode information to associated NE, gets into energy-conservation resting state; Wherein, said power save mode information comprises: the cell ID of sub-district, said Home eNodeB place and the access module of said Home eNodeB.
12. Home eNodeB according to claim 11 is characterized in that, said energy conservation starting module comprises:
Energy-conservation request unit after being used for said energy-conservation decision module decision and getting into energy-conservation resting state, sends the power save mode request message to said associated NE;
The power save mode information transmitting unit after being used to receive the power save mode acknowledge message of said associated NE answer, is sent power save mode information to said associated NE;
The energy conservation starting unit is used to get into energy-conservation resting state.
13. Home eNodeB according to claim 12; It is characterized in that; When said power save mode information transmitting unit confirmed that the access module of said Home eNodeB is sealing access module or mixing access module, the said power save mode information of transmission also comprised: the GSG sign of the closed user group GSG under the said Home eNodeB.
14. a network element is characterized in that, comprising:
Receive and the preservation module, be used to receive power save mode information, preserve said power save mode information from Home eNodeB; Wherein, said power save mode information comprises: the cell ID of sub-district, said Home eNodeB place and the access module of said Home eNodeB;
Active module is used for when defining the user and desire to switch to sub-district, said Home eNodeB place, according to the said Home eNodeB of said power save mode information activation.
15. network element according to claim 14 is characterized in that, said reception also comprises with the said power save mode information of preserving the module reception: the GSG sign of the closed user group GSG under the said Home eNodeB;
Said active module comprises:
The user confirms the unit, is used to define the user and desires to switch to sub-district, said Home eNodeB place;
Pattern determining unit is used for confirming according to said power save mode information the access module of said Home eNodeB;
The first activation unit is used for said pattern determining unit and confirms that the access module of said Home eNodeB is open access module, activates said Home eNodeB;
The second activation unit; Be used for said pattern determining unit and confirm that the access module of said Home eNodeB is sealing access module or mixing access module; And confirm that near the GSG sign of said Home eNodeB and said Home eNodeB said user is the contracted user of said Home eNodeB according to the user, activate said Home eNodeB.
16. network element according to claim 15 is characterized in that, it is one of following that said user confirms that the unit comprises at least:
First user confirms the unit, is used to receive the approaching indication from the user, and is said near indicating the cell ID that includes sub-district, said Home eNodeB place, confirms that said user desires to switch to said Home eNodeB and belongs to the sub-district;
Second user confirms the unit, and the load that is used for said network element surpasses first and allows thresholding, confirms that the designated user under the said network element desires to switch to sub-district, said Home eNodeB place;
The 3rd user confirms the unit, is used to know that the neighbours base station load of Home eNodeB described in the management area surpasses the second permission thresholding, confirms that the designated user under the said neighbours base station desires to switch to sub-district, said Home eNodeB place.
17. control the energy-conservation system of Home eNodeB for one kind, it is characterized in that, comprise each described Home eNodeB in the claim 11 to 13, also comprise each described network element in the claim 14 to 15, said network element is as the associated NE of said Home eNodeB.
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| PCT/CN2011/076396 WO2012019491A1 (en) | 2010-08-10 | 2011-06-27 | Method, system, home nodeb and network element for controlling power saving of home nodeb |
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| WO2018176369A1 (en) * | 2017-03-31 | 2018-10-04 | Thomson Licensing | Method to awaken a network access device from the internet |
| US11382174B2 (en) | 2017-03-31 | 2022-07-05 | Interdigital Ce Patent Holdings, Sas | Method to awaken a network access device from the internet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102378324B (en) | 2015-08-12 |
| WO2012019491A1 (en) | 2012-02-16 |
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