CN102457947A - Network energy saving system and method and relevant device - Google Patents

Network energy saving system and method and relevant device Download PDF

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Publication number
CN102457947A
CN102457947A CN2010105194429A CN201010519442A CN102457947A CN 102457947 A CN102457947 A CN 102457947A CN 2010105194429 A CN2010105194429 A CN 2010105194429A CN 201010519442 A CN201010519442 A CN 201010519442A CN 102457947 A CN102457947 A CN 102457947A
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energy
node
conservation
save mode
power save
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CN2010105194429A
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CN102457947B (en
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杨宁
胡臻平
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China Mobile Communications Group Co Ltd
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China Mobile Communications Group Co Ltd
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Priority to CN201010519442.9A priority Critical patent/CN102457947B/en
Priority to CN201410356572.3A priority patent/CN104113901B/en
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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

Abstract

The invention discloses a network energy saving system, a network energy saving method and a relevant device, which are used for solving the problems of low user communication quality and frequent switchover among different radio access technology (RAT) networks in the conventional energy saving scheme. The system comprises an energy saving node and a power compensation node, wherein the energy saving node is used for sending a request message for entering an energy saving state to the power compensation node when according with a condition for entering the energy saving state, determining the time to enter the energy saving state according to a received confirm message sent by the power compensation node, and entering the energy saving state at the determined time; and the power compensation node is used for receiving the request message sent by the energy saving node, judging whether is allowed to enter the energy saving state, sending the confirm message to each energy saving node in an energy saving node group if the energy saving node is allowed to enter the energy saving state, determining the time when the energy saving node enters the energy saving state, and performing coverage compensation on the original coverage range of each energy saving node in the energy saving node group at the determined time.

Description

Network energy-saving system, network energy-saving method and relevant apparatus
Technical field
The present invention relates to wireless communication technology field, relate in particular to a kind of network energy-saving system, a kind of network energy-saving method and a kind of power back-off equipment and a kind of energy-conservation node device.
Background technology
For the demand that guarantees that the mobile subscriber can use mobile service whenever and wherever possible and satisfy portable terminal number close quarters peak hours/period user's speech quality; In existing network for realize movable signal cover fully and the multilayer in the higher area of telephone traffic covers, laid a large amount of base station equipments.Yet, find that through statistics the utilance of base station equipment is not high, average utilization less than 50% in instantaneous utilance even the less than 10% of some period, has just caused the waste problem of the energy in this case.
In order to solve the problem of above-mentioned energy waste, prior art provides multiple energy-saving scheme.Most at present energy-saving schemes is based on statistics; Basic principle is: the utilization rate data of obtaining base station in the order history time period; The subnetwork parameter of adjustment base station equipment; That for example adopts at present closes time slot/carrier frequency function at times based on user's tidal effect, as morning every day 0:00 to early morning 6:00 on part time slot or carrier frequency, do not send any signaling and business datum, thereby reach energy-saving effect.
In Long Term Evolution (LTE, Long Term Evolution) network system, the method for only closing time slot/carrier frequency function at times with statistics can't satisfy the demand that following business burst property is strong, traffic carrying capacity is big.In the 3GPP REL-9 stage, proposed the standardization motion of power-saving technology, its principle is following for this reason:
When the cell unit A1 among the A of base station confirmed to get into power save mode according to the present load situation, base station A notice adjacent base station B, base station C cell unit A1 got into power save mode; When adjacent base station B or base station C load increase, request base station A carries out load balancing; After before base station A opens again, getting into the cell unit A1 of power save mode, notice adjacent base station B or base station C cell unit A1 resume work.
Yet the prerequisite of above-mentioned motion is that the coverage of each sub-district all has bottom to cover to guarantee that when the cell unit A1 among the A of base station gets into power save mode the base station that provides bottom to cover absorbs the telephone traffic in the former overlay area of cell unit A1.
Yet under the intra-LTE scene in the 3GPP REL-10 stage, network system will no longer forever provide bottom to cover, and therefore the standardization motion of above-mentioned power-saving technology will be difficult to satisfy the telephone traffic demand of the former overlay area of cell unit that gets into power save mode.In this case, still guarantee to absorb the telephone traffic of this former overlay area, base station when how getting into power save mode, guarantee that promptly the user's communications quality is a problem that urgency is to be solved in the part base station.
In addition; In the intra-LTE scene in the 3GPP REL-10 stage; Use LTE network and 2G (or 3G) network that the same area is repeated to cover respectively; Please with reference to shown in the accompanying drawing 1a, wherein CellA is that zone, CellB, CellC and the CellD of 2G (or 3G) network coverage are the zone of the LTE network coverage.Suppose that CellC has got into power save mode according to the loading condition of self, and does not close CellB and CellD simultaneously in order to save the energy; Then will cause and on the former overlay area of CellC, occur " cavity " in the LTE network coverage; As the overlay area of portable terminal, when the overlay area of process CellC gets into the overlay area of CellD, need switch in 2G (or 3G) network by the LTE network earlier so from CellB; Switch to again in the LTE network, shown in accompanying drawing 1b.Said process can cause portable terminal in the internetwork repeatedly switching of different radio access module (RAT, Radio Access Technology), thereby increases the increase of the mutual signaling in the network and the probability that call drop appears in portable terminal.
Therefore, above-mentioned base station (or the cell unit in the base station) confirms that according to the load state of self scheme that gets into power save mode can't guarantee user communication quality or avoid the frequent problem of switching between different radio access module network.
Summary of the invention
The embodiment of the invention provides a kind of network energy-saving system, in order to solve in the existing energy-saving scheme the frequent problem of switching between the not good and different RAT networks of user communication quality.
Accordingly, the embodiment of the invention also provides a kind of network energy-saving method, a kind of power back-off node device and a kind of energy-conservation node device.
The technical scheme that the embodiment of the invention provides is following:
A kind of network energy-saving system; Comprise power back-off node and the energy-conservation groups of nodes that comprises at least one energy-conservation node; Wherein: energy-conservation node is used for when self satisfies the condition of predetermined entering power save mode, sending the request message that is used to ask to get into power save mode to said power back-off node; And confirm to get into the time of power save mode, and get into power save mode in this time of determining according to receiving affirmation message that said power back-off node sends; The power back-off node; After being used to receive the described request message that energy-conservation node sends; Judge whether to allow energy-conservation groups of nodes to get into power save mode, when judging the energy-conservation groups of nodes entering of permission power save mode, the energy-conservation node of each in said energy-conservation groups of nodes sends acknowledge message; And the time that confirm to get into power save mode, and the time of determining to said energy-conservation groups of nodes in the former coverage of each energy-conservation node cover compensation.
A kind of network energy-saving method comprises: the affirmation message that the energy-conservation node received power compensation node in the energy-conservation groups of nodes is sent, and according to definite time that gets into power save mode of this acknowledge message; On this time of determining, get into power save mode.
A kind of network energy-saving method; Comprise: the power back-off node receives that energy-conservation node in the energy-conservation groups of nodes sends be used to ask to get into the request message of power save mode after; Judge whether to allow said energy-conservation groups of nodes to get into power save mode, said energy-conservation groups of nodes comprises at least one energy-conservation node; And judging when allowing said energy-conservation groups of nodes to get into power save mode, the energy-conservation node of each in said energy-conservation groups of nodes sends acknowledge message; And definite time that gets into power save mode; Said power back-off node covers compensation to the former coverage of each energy-conservation node in the said energy-conservation groups of nodes on the time of determining.
A kind of power back-off node device comprises: first receiving element, be used for receiving the request message that is used to ask to get into power save mode that the energy-conservation node of energy-conservation groups of nodes is sent, and said energy-conservation groups of nodes comprises at least one energy-conservation node; Judging unit after being used for first receiving element and receiving described request message, judges whether to allow said energy-conservation groups of nodes to get into power save mode; First transmitting element is used for when judgment unit judges goes out to allow to get into power save mode, and the energy-conservation node of each in said energy-conservation groups of nodes sends acknowledge message; Confirm the unit, be used for affirmation message, confirm to get into the time of power save mode according to the transmission of first transmitting element; Performance element is used for confirming that time that the unit is determined former coverage to said energy-conservation each energy-conservation node of groups of nodes covers compensation.
A kind of energy-conservation node device comprises: first receiving element is used for the affirmation message that received power compensation node is sent according to described request message correspondence; Confirm the unit, the affirmation message that is used for receiving according to first receiving element confirms to get into the time of power save mode; Performance element is used for confirming that the time that the unit is determined gets into power save mode.
A kind of network energy-saving system; Comprise energy-conservation groups of nodes, power back-off node; Comprise a predetermined bunch first node in the said energy-conservation groups of nodes; Wherein: other the energy-conservation nodes in the energy-conservation groups of nodes except that bunch first node, be used for when satisfying the condition of predetermined entering power save mode, send the request message that is used to ask to get into power save mode to said bunch of first node; And after receiving the affirmation message that said bunch of first node send, confirm to get into the time of power save mode according to this acknowledge message, and on this time of determining, get into power save mode; Bunch first node; Be used for after receiving other the energy-conservation node sent request message of energy-conservation groups of nodes that self belong to; Judge whether to allow to get into power save mode; When judging permission entering power save mode, each energy-conservation node in said energy-conservation groups of nodes except that self and power back-off node send acknowledge message, and confirm to get into the time of power save mode; And on the said time of determining, get into power save mode; The power back-off node; After being used to receive the affirmation message that said bunch of first node send; According to definite time that gets into power save mode of this acknowledge message, and the former coverage to each energy-conservation node in the said energy-conservation groups of nodes covers compensation on the time of determining.
A kind of network energy-saving method; Comprise: the power back-off node receives the affirmation message that energy-conservation node is sent; And according to definite time that gets into power save mode of the affirmation message that receives, and the former coverage to each energy-conservation node in the predetermined energy-conservation groups of nodes at said energy-conservation node place covers compensation on the time of determining.
A kind of network energy-saving method; Comprise: bunch first node receives after other energy-conservation nodes being used to of sending in the energy-conservation groups of nodes at self place ask to get into the request message of power save mode; Judge whether to allow to get into power save mode; And when judging permission entering power save mode, each energy-conservation node in said energy-conservation groups of nodes except that self and power back-off node send acknowledge message; And definite time that gets into power save mode; On the said time of determining, get into power save mode.
A kind of power back-off node device comprises: receiving element is used to receive the affirmation message that energy-conservation node is sent; Confirm the unit, the affirmation message that is used for receiving according to receiving element confirms to get into the time of power save mode; Performance element is used for covering compensation in the former coverage of predetermined energy-conservation each energy-conservation node of groups of nodes of confirming on the time that the unit is determined said energy-conservation node to be belonged to.
A kind of energy-conservation node device comprises: first receiving element is used for receiving the request message that is used to ask to get into power save mode that other energy-conservation nodes of energy-conservation groups of nodes at said energy-conservation node device place are sent; Judging unit after being used for first receiving element and receiving described request message, judges whether to allow to get into power save mode; First transmitting element is used for when judgment unit judges goes out to allow to get into power save mode, and other energy-conservation nodes of each in energy-conservation groups of nodes and power back-off node send acknowledge message; Confirm the unit, be used for affirmation message, confirm to get into the time of power save mode according to the transmission of first transmitting element; Performance element gets into power save mode on the time that is used for determining in said definite unit.
A kind of network energy-saving system; Comprise energy-conservation groups of nodes and power back-off node; Comprise at least two energy-conservation nodes in the said energy-conservation groups of nodes; Wherein: energy-conservation node, be used for when self satisfies the condition of predetermined entering power save mode, the energy-conservation nodes of other in the energy-conservation groups of nodes that self belongs to send the request message that is used to ask to get into power save mode; And after receiving the positive reply that other energy-conservation node correspondences send; Judge whether to allow said energy-conservation groups of nodes to get into power save mode; And when judging permission entering power save mode, other energy-conservation nodes in said energy-conservation groups of nodes and power back-off node send acknowledge message; Confirm to get into the time of power save mode according to this acknowledge message, and on this time of determining, get into power save mode; And after other the energy-conservation node sent request message in receiving the energy-conservation groups of nodes that self belongs to, when self satisfies the condition of predetermined entering power save mode, send positive reply; The power back-off node; After being used for receiving the affirmation message that the energy-conservation node of energy-conservation groups of nodes sends; According to definite time that gets into power save mode of this acknowledge message, and the former coverage to each energy-conservation node in the said energy-conservation groups of nodes covers compensation on the time that this is determined.
A kind of network energy-saving method; Comprise: when the first energy-conservation node in the energy-conservation groups of nodes satisfied the condition of predetermined entering power save mode at self, the energy-conservation nodes of other in the energy-conservation groups of nodes that self belongs to sent the request message that is used to ask to get into power save mode; And after receiving the positive reply that other energy-conservation node correspondences send; Judge whether to allow said energy-conservation groups of nodes to get into power save mode; Said positive reply is that said other energy-conservation nodes are receiving after the described request message, when said other energy-conservation nodes satisfy the condition of predetermined entering power save mode, sending; And when judging permission entering power save mode, other energy-conservation nodes in said energy-conservation groups of nodes and power back-off node send acknowledge message; The first energy-conservation node confirms to get into the time of power save mode according to said acknowledge message, and on this time of determining, gets into power save mode.
A kind of energy-conservation node device comprises: monitoring unit is used to monitor the condition that self whether satisfies predetermined entering power save mode; First transmitting element is used for when monitoring unit monitors the condition that self satisfies predetermined entering power save mode, and the energy-conservation node device of other in same energy-conservation node device group sends the request message that is used to ask to get into power save mode; First receiving element; Be used to receive the positive reply that other energy-conservation nodes are sent according to the described request message correspondence of first transmitting element transmission, said positive reply is that other energy-conservation nodes are receiving behind the request message, when said other energy-conservation nodes satisfy the condition of predetermined entering power save mode, sending; Confirm the unit, be used for the positive reply that receives according to first receiving element, determine whether to allow said energy-conservation groups of nodes to get into power save mode; Second transmitting element is used for determining when allowing to get into power save mode in definite unit, and other energy-conservation nodes in said energy-conservation groups of nodes and power back-off node send acknowledge message; Confirm the unit, be used for affirmation message, confirm to get into the time of power save mode according to the transmission of second transmitting element; Performance element is used for confirming to get into power save mode on the time that the unit is determined; The 3rd transmitting element is used for after receiving other energy-conservation node sent request message of same energy-conservation groups of nodes, when self satisfies the condition of predetermined entering power save mode, sends positive reply.
In the network energy-saving scheme that the embodiment of the invention provides; When the energy-conservation node in the energy-conservation groups of nodes satisfies the condition of predetermined entering power save mode at self; Other energy-conservation nodes to power back-off node or appointment send the request message that is used to ask to get into power save mode; Before receiving acknowledge message, keep normal operating conditions.The energy-conservation node of other of power back-off node or appointment is after confirming to allow energy-conservation groups of nodes to get into power save mode; The energy-conservation node of in energy-conservation groups of nodes each sends acknowledge message; Energy-conservation node in the energy-conservation groups of nodes is according to definite time that gets into power save mode of the affirmation message that receives, and the time entering power save mode of determining; After simultaneously the power back-off node is determined the time that energy-conservation groups of nodes gets into power save mode, the time of determining to energy-conservation groups of nodes in the former coverage of each energy-conservation node cover compensation.Guaranteed that on the one hand energy-conservation node entering power save mode and power back-off node cover compensation and take place simultaneously, after avoiding energy-conservation node to get into power save mode, the user communication quality in the former coverage of energy-conservation node is affected; On the other hand; Guaranteed that the energy-conservation node in the energy-conservation groups of nodes can get into power save mode simultaneously; Rather than successively get into power save mode separately, thereby avoided occurring on each former overlay area of energy-conservation node of energy-conservation groups of nodes " cavity " and the frequent problem of the switching that causes.
Description of drawings
Fig. 1 a is the sketch map that the network of different radio access module in the prior art repeats to cover;
Fig. 1 b is the sketch map that occurs " cavity " in the prior art behind the part of nodes entering power save mode;
Fig. 2 is the main realization principle flow chart of the embodiment of the invention;
Fig. 3 is the sketch map of network configuration among the inventive method embodiment one;
Fig. 4 is the flow chart of network energy-saving method among the inventive method embodiment one;
Fig. 5 is the sketch map of network configuration among the inventive method embodiment two;
Fig. 6 is the flow chart of network energy-saving method among the inventive method embodiment two;
Fig. 7 is the sketch map of network configuration among the inventive method embodiment three;
Fig. 8 is the flow chart of network energy-saving method among the inventive method embodiment three;
The structural representation of a kind of power back-off node device that Fig. 9 provides for the inventive method embodiment;
The structural representation of a kind of energy-conservation node device that Figure 10 provides for the inventive method embodiment;
The structural representation of the another kind of power back-off node device that Figure 11 provides for the inventive method embodiment;
The structural representation of second kind of energy-conservation node device that Figure 12 provides for the inventive method embodiment;
The structural representation of the third energy-conservation node device that Figure 13 provides for the inventive method embodiment.
Embodiment
The inventor finds that reason that existing energy-saving scheme is not suitable for intra-LTE or intra-LTE scene in the 3GPP REL-10 stage is in the present energy-saving scheme; Node all is to determine whether to get into power save mode according to self load state; And getting into power save mode according to the result, this mode can not guarantee that the node that all energy-conservation nodes get into power save mode simultaneously and meanwhile are used to cover compensation strengthens transmitting power in order to the node original coverage that gets into power save mode is compensated covering.
Based on this; The inventor provides several kinds of network energy-saving schemes; Its core concept is before energy-conservation node gets into power save mode; With other nodes the time that gets into power save mode is held consultation, have a node to send the notice that gets into power save mode, to guarantee that energy-conservation node in the destined node group can get into power save mode simultaneously, the node that meanwhile is used to cover compensation compensates covering to the original coverage of node that gets into power save mode to other nodes.
Carry out detailed elaboration below in conjunction with each accompanying drawing to the main realization principle of embodiment of the invention technical scheme, embodiment and to the beneficial effect that should be able to reach.
As shown in Figure 2, the main realization principle process of the embodiment of the invention is following:
When step 10, the first energy-conservation node in the energy-conservation groups of nodes satisfied the condition of predetermined entering power save mode at self, the predetermined energy-conservation node in power back-off node or this destined node group sent the request message that is used to ask to get into power save mode;
Step 20, the predetermined energy-conservation node in power back-off node or the energy-conservation groups of nodes judge whether to allow said energy-conservation groups of nodes to get into power save mode, if allow, then get into step 30;
Step 30, the energy-conservation node of power back-off node each in said energy-conservation groups of nodes sends acknowledge message; Perhaps predetermined other energy-conservation nodes of energy-conservation node each in power back-off node and said energy-conservation groups of nodes send acknowledge message; Said acknowledge message is used for confirming to get into the time of power save mode;
Step 40; After all energy-conservation nodes in the said energy-conservation groups of nodes receive acknowledge message; Confirm to get into time of power save mode according to the affirmation message that receives, and getting into power save mode on the time of determining and the power back-off node covers compensation on this time.
To introduce three embodiment in detail and come the main realization principle of the inventive method is carried out detailed elaboration and explanation according to foregoing invention principle of the present invention below.
Embodiment one
The power back-off node is used to the time of judging whether other nodes can get into power save mode and confirm to get into power save mode as host node in the present embodiment.Comprise that from groups of nodes at least one is preset as the energy-conservation node from node; When self satisfies the condition of predetermined entering power save mode, send the request message that is used to ask to get into power save mode from node, and determine when the entering power save mode according to the feedback of host node to host node.
Please, be the schematic network structure of the embodiment of the invention with reference to accompanying drawing 3.Wherein host node S is the power back-off node, and predetermined node A, Node B, node C from groups of nodes possesses the energy-conservation node that gets into the power save mode function, and node A, Node B, node C can be the node of the adjacent same wireless access module in overlay area.Node D is the node of the different radio access module adjacent with node A overlay area.
Please with reference to accompanying drawing 4, be the flow chart of network energy-saving method in the embodiment of the invention, the whole flow process with node A request entering power save mode is that example is introduced network energy-saving method here.
Whether step 401 satisfies the condition of predetermined entering power save mode from node A monitoring self, if get into step 402;
The condition of predetermined entering power save mode includes but not limited to:
Load is lower than predetermined threshold, or
Said power back-off node can be born this load from node, should from node can through and the power back-off node between regularly mutual heartbeat message confirm that can the power back-off node bear this load from node.
Step 402 is sent the request message that is used to ask to get into power save mode from node A to host node S;
Step 403, host node S receives after node A sent request message, judges whether to allow saidly to get into power save mode from node A, if get into step 404, otherwise get into step 407;
Here host node S is through judging all being under the situation of normal operating conditions from node from groups of nodes; When receiving from node A sent request message; All whether have been received from groups of nodes from node (from node A, from Node B, from node C) sent request message; If allow to get into power save mode from groups of nodes; Otherwise, do not allow to get into power save mode from groups of nodes.
Step 404, host node S gets into step 405 to each sends acknowledge message from node (from node A, from Node B with from node C) from groups of nodes;
Step 405; Host node S confirms that according to the affirmation message of sending in the step 404 energy-conservation node gets into the time of power save mode; So that on this time, strengthen transmitting power, to from groups of nodes, respectively covering compensation from the former overlay area of node (from node A, from Node B with from node C);
Other nodes that send the node of acknowledge message or receive acknowledge message confirm that according to acknowledge message the time of energy-conservation node entering power save mode mainly contains two types of modes:
Mode one: explicit way: the node (being the power back-off node S as host node in the present embodiment) that sends acknowledge message at first confirms to get into the time of power save mode; And in acknowledge message, carry the time time information corresponding of determining; The node that sends acknowledge message is if the words of power back-off node; Then on the time of the entering power save mode of determining, carry out power back-off; The node that sends acknowledge message is if energy-conservation node then gets into power save mode on the time of the entering power save mode that this is determined;
The node that receives acknowledge message extracts the temporal information of carrying from acknowledge message, be the power back-off node if receive the node of acknowledge message, then on the temporal information time corresponding of extracting, covers compensation; If receiving the node of acknowledge message is energy-conservation node, and on this temporal information time corresponding, gets into power save mode;
Obviously corresponding standard time of the temporal information in the acknowledge message should be in current time (sending the time of acknowledge message) afterwards in the predetermined amount of time; For example; Suppose that the current time is 18:00 on May 5th, 2000; Then this temporal information time corresponding is 18:05 on May 5th, 2000, can come to be provided with flexibly according to the real network situation by administrative staff, and this temporal information time corresponding and the difference of current time are too short; After then being difficult to guarantee experience Network Transmission consumed time, each energy-conservation node can both be at this moment between before received acknowledge message; Certainly, this temporal information time corresponding and the difference of current time long (for example 5 hours), otherwise load state changes probably already, gets into power save mode and also just lost meaning.
Mode two: implicit expression mode: the node (being the power back-off node S as host node in the present embodiment) that sends acknowledge message does not carry temporal information in acknowledge message; The node that sends the node of acknowledge message or receive acknowledge message is respectively according to the rule of confirming to get into the time of power save mode in advance with the time according to sending or receive acknowledge message of other nodes agreements; Confirm to get into the time of power save mode, and on this time, cover compensation or get into power save mode.For example; Power back-off node and other energy-conservation nodes are made an appointment in the present embodiment: cover compensation after sending modification cycle of the predetermined quantity of node after sending this acknowledge message of acknowledge message, get into power save mode after receiving modification cycle of the predetermined quantity of node after receiving this acknowledge message of acknowledge message simultaneously; The node that perhaps sends acknowledge message covers compensation on the scheduled time node (integral point after for example sending acknowledge message) after this acknowledge message of transmission; The scheduled time node (integral point for example receive acknowledge message after) of node after receiving this acknowledge message that receives acknowledge message simultaneously gone up the entering power save mode; For instance; The timing node of making an appointment be between integral point and the integral point whenever at a distance from 10 minutes time point; Be 8:00:00,8:10:00,8:20:00,8:30:00,8:40:00,8:50:00,9:00:00; ..., power back-off node S has sent acknowledge message at 8: 02, from node A, received acknowledge message respectively at 8: 03,8: 04,8: 05 from Node B with from node C; Host node S will cover compensation at 8:10:00 so, simultaneously from node A, all get into power save mode at 8:10:00 from Node B with from node C.
Step 406 from node A, from Node B with from node C receives the affirmation message that host node S sends step 404 after, is confirmed to get into the time of power save mode according to this acknowledge message, and on this time of determining, is got into power save mode;
Step 407, host node S waits notice to sending from node A;
Step 408 keeps normal operating conditions from node A, waits for receiving the affirmation message that said host node is sent; Judge and receive acknowledge message; Or self occurring does not satisfy the situation of the condition of predetermined entering power save mode, if receive acknowledge message, then gets into step 406; If before receiving acknowledge message, occurred self not satisfying the situation of the condition of predetermined entering power save mode, then get into step 409;
Step 409 is sent the message of cancelling that is used to cancel described request message that step 402 sends from node A to said host node S;
Step 410, host node S receive in the step 409 from node A send cancel message after, the request message that deletion step 403 receives, cancellation is sent acknowledge message to said each from groups of nodes from node.
Preferably; In step 406, before node A entering power save mode, send the Indication message that is used to adjust the Signalling exchange mode to adjacent node D; To get into power save mode so that inform node D self, subsequent node D no longer searches the adjacent area signalings such as signaling and sends to from node A like this.
Embodiment two
Present embodiment provides a kind of network energy-saving scheme based on clustering architecture.At least one preassigned energy-conservation node is arranged as bunch first node in the energy-conservation groups of nodes, play all energy-conservation nodes of coordinating in this energy-conservation groups of nodes and get into power save mode simultaneously, the power back-off node covers the effect of compensation simultaneously.
Please with reference to shown in the accompanying drawing 5, comprise node A, Node B and three energy-conservation nodes of node C in the energy-conservation groups of nodes, node C is as bunch first node.Node S is the power back-off node.Node A, Node B, node C can be the node of the adjacent same wireless access module in overlay area.Node D is the node of the different radio access module adjacent with node A overlay area.
Please with reference to accompanying drawing 6, be the flow chart of network energy-saving method in the embodiment of the invention, the whole flow process with node A request entering power save mode is that example is introduced network energy-saving method here.
Step 601, whether node A monitoring self satisfy the condition of predetermined entering power save mode, if get into step 602;
The condition of predetermined entering power save mode includes but not limited to:
Load is lower than predetermined threshold, or
Said power back-off node can be born this load from node, should from node can through and the power back-off node between regularly mutual heartbeat message confirm that can the power back-off node bear this load from node.
Step 602, node A sends the request message that is used to ask to get into power save mode to a bunch first node C;
Step 603 after a bunch first node C receives node A sent request message, judges whether to allow to get into power save mode, if get into step 604, otherwise get into step 607;
Here bunch first node C is when receiving node A sent request message; The energy-conservation node of judgement in energy-conservation groups of nodes all is under the situation of normal operating conditions; Other all energy-conservation nodes (node A, Node B) sent request message except that self whether have been received in the energy-conservation groups of nodes; If allow energy-conservation groups of nodes to get into power save mode; Otherwise, do not allow energy-conservation groups of nodes to get into power save mode.
Step 604, bunch first node C is each other energy-conservation node (node A, Node B) and power back-off node S transmission acknowledge message in energy-conservation groups of nodes, gets into step 605;
Step 605, bunch first node C confirms that according to the affirmation message of sending in the step 604 energy-conservation node gets into the time of power save mode; The energy-conservation node of in the energy-conservation groups of nodes other (energy-conservation node A and energy-conservation Node B) confirms to get into the time of power save mode according to receiving acknowledge message, and on the time of the entering power save mode of determining, gets into power save mode;
It is similar specifically confirm to get into mode and the step 405 and the step 406 in the accompanying drawing 4 of time of power save mode according to acknowledge message, here detailed description no longer.
Step 606; Power back-off node S receives bunch affirmation message that first node C sends in step 604 after; Confirm that energy-conservation node gets into the time of power save mode; And on the time of determining, strengthen transmitting power, the former overlay area of each node in the energy-conservation groups of nodes (node A, Node B and node C) is covered compensation;
Power back-off node S can confirm that energy-conservation node gets into the time of power save mode through extracting time information from acknowledge message; Or receive the rule that time of acknowledge message confirm to get into the time of power save mode according to the basis of making an appointment, confirm to get into the time of power save mode.
Step 607, bunch first node C waits notice to sending from node A;
Step 608, node A keeps normal operating conditions, when wait for receiving the affirmation message that said bunch of first node send; Judge and receive acknowledge message; Or self occurring does not satisfy the situation of the condition of predetermined entering power save mode, if receive acknowledge message, then gets into step 605; If before receiving acknowledge message, occurred self not satisfying the situation of the condition of predetermined entering power save mode, then get into step 609;
Step 609, node A sends the message of cancelling that is used to cancel described request message that step 602 sends to said bunch of first node C;
Step 610, bunch first node C receives that node A sends in the step 609 cancel message after, the request message that deletion step 603 receives, other energy-conservation nodes of cancellation each in said energy-conservation groups of nodes send acknowledge messages.
Preferably; In step 605, before node A entering power save mode, send the Indication message that is used to adjust the Signalling exchange mode to adjacent node D; To get into power save mode so that inform node D self, subsequent node D no longer searches the adjacent area signalings such as signaling and sends to from node A like this.
In the network energy-saving scheme that the embodiment of the invention provides; When energy-conservation node satisfies the condition of predetermined entering power save mode at self; Not directly to have got into power save mode as prior art; But send the request message that is used to ask to get into power save mode to other energy-conservation nodes of power back-off node that is in leading position or appointment, before the affirmation message that other energy-conservation nodes that receive power back-off node or appointment send, keep normal operating conditions.The energy-conservation node of other energy-conservation nodes all in receiving energy-conservation groups of nodes of power back-off node or appointment that is in leading position is respectively after the sent request message; Energy-conservation node in energy-conservation groups of nodes sends acknowledge message; Get into power save mode on the temporal information time corresponding of carrying of energy-conservation node in the energy-conservation groups of nodes in acknowledge message, on the temporal information time corresponding of carrying of power back-off node in acknowledge message the former coverage of each energy-conservation node in the energy-conservation groups of nodes is covered compensation simultaneously.Such scheme has guaranteed that on the one hand energy-conservation node entering power save mode and power back-off node cover compensation and take place simultaneously, and after avoiding energy-conservation node to get into power save mode, the user communication quality in the former coverage of energy-conservation node is affected; On the other hand; Guaranteed that the energy-conservation node in the energy-conservation groups of nodes can get into power save mode simultaneously; Rather than successively get into power save mode separately, thereby avoided occurring on each former overlay area of energy-conservation node of energy-conservation groups of nodes " cavity " and the frequent problem of the switching that causes.
Embodiment three
Embodiment one provide a kind of network energy-saving scheme, embodiment two based on master-slave mode provide a kind of based on bunch the network energy-saving scheme, all belong to stratified scheme.Present embodiment provides a kind of scheme of not having hierarchy.The energy-conservation node of in the energy-conservation groups of nodes each other energy-conservation nodes in group when self satisfies the condition of predetermined entering power save mode send a request message; If the condition that also satisfies predetermined entering power save mode of other nodes then feed back positive reply, otherwise feedback waits notice; If the energy-conservation node that sends a request message has been received the positive reply of every other node feedback in the said energy-conservation groups of nodes; Confirm that then this energy-conservation groups of nodes can get into power save mode, other energy-conservation nodes of each in this energy-conservation groups of nodes and power back-off node send acknowledge message; The energy-conservation node that this sends a request message and other energy-conservation nodes confirm to get into the time of power save mode; And on the time of determining, get into power save mode, power back-off node and confirm that energy-conservation node gets into the time of power save mode, covers compensation on the time of determining.This scheme is appreciated that to being dominated by arbitrary energy-conservation node in the energy-conservation groups of nodes.
Please, comprise node A, Node B and three energy-conservation nodes of node C in the energy-conservation groups of nodes with reference to shown in the accompanying drawing 7.Node S is the power back-off node.Node A, Node B, node C can be the node of the adjacent same wireless access module in overlay area.Node D is the node of the different radio access module adjacent with node A overlay area.
Detailed process is please with reference to shown in the accompanying drawing 8.
Step 801, whether node A monitoring self satisfy the condition of predetermined entering power save mode, when self satisfies the condition of predetermined entering power save mode, gets into step 802;
The condition of predetermined entering power save mode includes but not limited to:
Load is lower than predetermined threshold, or
Said power back-off node can be born this load from node, should from node can through and the power back-off node between regularly mutual heartbeat message confirm that can the power back-off node bear this load from node.
Step 802, node A other nodes (Node B and node C) in energy-conservation groups of nodes send the request message that is used to ask to get into power save mode;
Step 803, other nodes in the energy-conservation groups of nodes (Node B and node C) judge respectively whether self also satisfies the condition of predetermined entering power save mode, if send positive reply to node A; Otherwise wait notice to node A transmission;
Step 804, node A judges whether to allow to get into power save mode, if get into step 805, otherwise, work on, get into step 808;
During the positive reply of other nodes of node A each in having received energy-conservation groups of nodes feedback, allow to get into power save mode, otherwise do not allow to get into power save mode.
When step 805, the positive reply of other nodes of node A each in having received energy-conservation groups of nodes feedback, each other energy-conservation node (Node B, node C) and power back-off node S send acknowledge message in energy-conservation groups of nodes, get into step 806;
Step 806 after node A sends acknowledge message, and after Node B receives acknowledge message with node C, is confirmed the time of entering power save mode according to this acknowledge message, and on the time of determining, is got into power save mode;
Step 807; Power back-off node S receives the affirmation message that node A sends in step 804 after; Confirm that energy-conservation node gets into the time of power save mode; And on the time of determining, strengthen transmitting power, the former overlay area of each node in the energy-conservation groups of nodes (node A, Node B and node C) is covered compensation;
Step 808; Node A keeps normal operating conditions, judges to receive positive reply, or self situation of the condition of the satisfied entering power save mode of being scheduled to occurs; If before receiving positive reply; Self does not occur and do not satisfy the situation of the condition of predetermined entering power save mode, after receiving positive reply, get into step 804 so; If after sending a request message, the situation that the condition of predetermined entering power save mode is not satisfied in self load occurred, then get into step 809;
Step 809, node A other nodes (Node B and node C) in energy-conservation groups of nodes are sent the message of cancelling be used to cancel described request message that step 802 sends; Other energy-conservation nodes of cancellation each in said energy-conservation groups of nodes send acknowledge message.
Accompanying drawing 8 is the process that the example introduction consults to get into power save mode with node A only, and in fact, any node in the energy-conservation groups of nodes can be carried out above-mentioned flow process.
In order to reduce the message number of transmission through network; Other nodes in above-mentioned steps 803 in the energy-conservation groups of nodes (Node B and node C) can only send positive reply; When the load of self is not less than predetermined threshold (promptly not satisfying the condition that gets into power save mode), omits to the energy-conservation node feedback that sends a request message and wait notice.
Corresponding method embodiment one, and the embodiment of the invention also provides a kind of power back-off node device, and is as shown in Figure 9, and this device comprises first receiving element 901, judging unit 902, first transmitting element 903, confirms unit 904 and performance element 905, wherein:
First receiving element 901 is used for receiving the request message that is used to ask to get into power save mode that the energy-conservation node of energy-conservation groups of nodes is sent, and said energy-conservation groups of nodes comprises at least one energy-conservation node;
Judging unit 902 after being used for first receiving element 901 and receiving described request message, judges whether to allow said energy-conservation groups of nodes to get into power save mode;
First transmitting element 903 is used for when judging unit 902 is judged permission entering power save mode, and the energy-conservation node of each in said energy-conservation groups of nodes sends acknowledge message;
Confirm unit 904, be used for affirmation message, confirm to get into the time of power save mode according to the single 903 yuan of transmissions of first transmission;
Performance element 905 is used for confirming that time that unit 904 is determined former coverage to said energy-conservation each energy-conservation node of groups of nodes covers compensation.
Preferably, the power back-off node device in the accompanying drawing 9 also comprises:
Second transmitting element 906 is used for judging when not allowing to get into power save mode at said judging unit 902, sends to the energy-conservation node that sends described request message and waits notice.
Preferably, the power back-off node device in the accompanying drawing 9 also comprises:
Second receiving element 907 is used for receiving the message of cancelling that the energy-conservation node of said energy-conservation groups of nodes sends;
Abort unit 908; Be used for receiving when cancelling message, end the energy-conservation node of cancellation first transmitting element 903 each in said energy-conservation groups of nodes and send acknowledge message at first transmitting element 903, second receiving element 907 before the energy-conservation node of each of said energy-conservation groups of nodes sends acknowledge message.
Corresponding method embodiment one, and the embodiment of the invention also provides a kind of energy-conservation node device, and is shown in figure 10, and this energy-conservation node device comprises first receiving element 101, confirms unit 102 and performance element 103, wherein:
First receiving element 101 is used for the affirmation message that received power compensation node is sent according to described request message correspondence;
Confirm unit 102, the affirmation message that is used for receiving according to first receiving element 101 confirms to get into the time of power save mode;
Performance element 103 is used for confirming that the time that unit 102 is determined gets into power save mode.
Preferably, the energy-conservation node device in the accompanying drawing 10 also comprises:
Monitoring unit 104 is used to monitor the condition whether said energy-conservation node device satisfies predetermined entering power save mode;
First transmitting element 105 is used for when monitoring unit 104 monitors the condition that satisfies predetermined entering power save mode, sends the request message that is used to ask to get into power save mode to the power back-off node;
The affirmation message that said first receiving element 101 receives is that the power back-off node is sent according to the request message that first transmitting element 105 sends.
Preferably, the energy-conservation node device in the accompanying drawing 10 also comprises:
Second receiving element 106 is used for the notice that waits that described request message correspondence that received power compensation node sends according to first transmitting element 105 sends;
Said first receiving element 101 second receiving element 106 receive wait notice after, wait for to receive the affirmation message that said power back-off node is sent.
Preferably, the energy-conservation node device in the accompanying drawing 10 also comprises:
Second transmitting element 107; Be used for after first transmitting element 105 sends described request message; When monitoring unit 104 monitors the condition that satisfies predetermined entering power save mode, send the message of cancelling that is used to cancel described request message that first transmitting element 105 sends to the power back-off node.
Corresponding method embodiment two, and the embodiment of the invention also provides a kind of power back-off node device, and its structural representation is shown in accompanying drawing 11, and this power back-off node device comprises receiving element 111, confirms unit 112 and performance element 113, wherein:
Receiving element 111 is used for confirmation of receipt message;
Confirm unit 112, the affirmation message that is used for receiving according to receiving element 111 confirms to get into the time of power save mode;
Performance element 113 is used for confirming that the former coverage to predetermined energy-conservation each energy-conservation node of groups of nodes covers compensation on the time that unit 112 is determined.
Corresponding method embodiment two; The embodiment of the invention also provides a kind of bunch energy-conservation node device of first effect that plays; Its structural representation is shown in accompanying drawing 12; This energy-conservation node device comprises first receiving element 121, judging unit 122, first transmitting element 123, confirms unit 124 and performance element 125, wherein:
First receiving element 121 is used for receiving the request message that is used to ask to get into power save mode that other energy-conservation nodes of energy-conservation groups of nodes at said energy-conservation node device place are sent;
Judging unit 122 after being used for first receiving element 121 and receiving described request message, judges whether to allow to get into power save mode;
First transmitting element 123 is used for when judging unit 122 is judged permission entering power save mode, and other energy-conservation nodes of each in energy-conservation groups of nodes and power back-off node send acknowledge message;
Confirm unit 124, be used for affirmation message, confirm to get into the time of power save mode according to 123 transmissions of first transmitting element;
Performance element 125 gets into power save mode on the time that is used for determining in said definite unit 124.
Corresponding method embodiment three; The embodiment of the invention also provides a kind of energy-conservation node device; Its structural representation is shown in accompanying drawing 13; This energy-conservation node device comprises monitoring unit 131, first transmitting element 132, first receiving element 133, judging unit 134, second transmitting element 135, confirms unit 136, performance element 137 and the 3rd transmitting element 138, wherein:
Monitoring unit 131 is used to monitor the condition that self whether satisfies predetermined entering power save mode;
First transmitting element 132; Be used for when monitoring unit 131 monitors the condition that self satisfies predetermined entering power save mode, other the energy-conservation node devices in the energy-conservation node device group at this energy-conservation node device place send the request message that is used to ask to get into power save mode;
First receiving element 133; Be used to receive the positive reply that other energy-conservation nodes are sent according to the described request message correspondence of first transmitting element, 132 transmissions, said positive reply is that said other energy-conservation nodes are receiving behind the request message, when said other energy-conservation nodes satisfy the condition of predetermined entering power save mode, sending;
Judging unit 134 is used for the positive reply that receives according to first receiving element 133, judges whether to allow said energy-conservation groups of nodes to get into power save mode;
Second transmitting element 135 is used for when judging unit 134 is judged permission entering power save mode, and other energy-conservation nodes in said energy-conservation groups of nodes and power back-off node send acknowledge message;
Confirm unit 136, be used for affirmation message, confirm to get into the time of power save mode according to 135 transmissions of second transmitting element;
Performance element 137 is used for confirming to get into power save mode on the time that unit 136 is determined;
The 3rd transmitting element 138 is used for after receiving other energy-conservation node sent request message of same energy-conservation groups of nodes, when self satisfies the condition of predetermined entering power save mode, sends positive reply.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to accomplish through program; This program can be stored in the computer read/write memory medium, as: ROM/RAM, magnetic disc, CD etc.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.

Claims (35)

1. a network energy-saving system is characterized in that, comprises power back-off node and the energy-conservation groups of nodes that comprises at least one energy-conservation node, wherein:
Energy-conservation node; Be used for when self satisfies the condition of predetermined entering power save mode; Send the request message that is used to ask to get into power save mode to said power back-off node; And confirm to get into the time of power save mode, and get into power save mode in this time of determining according to receiving affirmation message that said power back-off node sends;
The power back-off node; After being used to receive the described request message that energy-conservation node sends; Judge whether to allow energy-conservation groups of nodes to get into power save mode, when judging the energy-conservation groups of nodes entering of permission power save mode, the energy-conservation node of each in said energy-conservation groups of nodes sends acknowledge message; And the time that confirm to get into power save mode, and the time of determining to said energy-conservation groups of nodes in the former coverage of each energy-conservation node cover compensation.
2. a network energy-saving method is characterized in that, comprising:
The affirmation message that energy-conservation node received power compensation node in the energy-conservation groups of nodes is sent, and
Confirm to get into the time of power save mode according to this acknowledge message;
On this time of determining, get into power save mode.
3. method as claimed in claim 2 is characterized in that, said energy-conservation node also comprised before receiving acknowledge message:
When satisfying the condition of predetermined entering power save mode, send the request message that is used to ask to get into power save mode to the power back-off node;
Said acknowledge message is the request message of power back-off node according to each energy-conservation node transmission, sends when determining the energy-conservation groups of nodes entering of permission power save mode.
4. method as claimed in claim 3 is characterized in that, after said energy-conservation node sends a request message, and receives before the affirmation message that said host node sends, and also comprises:
Receive the notice that waits that said power back-off node sends, and
Receive that said power back-off node sends wait notice after, keep normal operating conditions, and wait for and receive the affirmation message that said power back-off node is sent.
5. method as claimed in claim 3 is characterized in that, said energy-conservation node also comprises after sending described request message:
Monitor self and whether satisfy the condition of predetermined entering power save mode, and
When not satisfying the condition that gets into power save mode, send the message of cancelling that is used to cancel described request message to said power back-off node.
6. method as claimed in claim 3 is characterized in that, the condition of said predetermined entering power save mode comprises:
The load of said energy-conservation node is lower than predetermined threshold; Or said power back-off node can be born the load of this energy-conservation node.
7. method as claimed in claim 2 is characterized in that, said energy-conservation node specifically comprised according to definite time that gets into power save mode of this acknowledge message:
Obtain the temporal information of carrying in the said acknowledge message, and with the time of the temporal information time corresponding of obtaining as the entering power save mode; Perhaps
According to the time that receives acknowledge message, utilize the definite rule that gets into the time of power save mode of time that receives acknowledge message in advance with the basis of other energy-conservation nodes and power back-off node agreement, confirm to get into the time of power save mode.
8. like the described method of arbitrary claim in the claim 2 to 7, it is characterized in that said energy-conservation node also comprises after receiving the affirmation message that said power back-off node sends:
Send the Indication message that is used to adjust the Signalling exchange mode to adjacent node.
9. a network energy-saving method is characterized in that, comprising:
The power back-off node receives that energy-conservation node in the energy-conservation groups of nodes sends be used to ask to get into the request message of power save mode after, judge whether to allow said energy-conservation groups of nodes to get into power save mode, said energy-conservation groups of nodes comprises at least one energy-conservation node; And
Judging when allowing said energy-conservation groups of nodes to get into power save mode, the energy-conservation node of each in said energy-conservation groups of nodes sends acknowledge message; And
Confirm to get into the time of power save mode;
Said power back-off node covers compensation to the former coverage of each energy-conservation node in the said energy-conservation groups of nodes on the time of determining.
10. method as claimed in claim 9 is characterized in that, said power back-off node judges whether to allow said energy-conservation groups of nodes to get into power save mode, specifically comprises:
Said power back-off node determines whether to receive the request message that is used to ask to get into power save mode that all energy-conservation nodes are sent in the said energy-conservation groups of nodes; And
When receiving all energy-conservation node sent request message, confirm to allow to get into power save mode; Otherwise,
Confirm not allow to get into power save mode.
11. method as claimed in claim 10 is characterized in that, said power back-off node also comprises after determining and not allowing to get into power save mode:
Energy-conservation node transmission to sending described request message waits notice.
12. method as claimed in claim 9 is characterized in that, said power back-off node also comprises before each the energy-conservation node in said energy-conservation groups of nodes sends acknowledge message:
If receive the message of cancelling that the energy-conservation node that sends described request message sends, each energy-conservation node of then cancelling in said energy-conservation groups of nodes sends acknowledge message.
13. method as claimed in claim 9 is characterized in that, the energy-conservation node of said power back-off node each in said energy-conservation groups of nodes sends acknowledge message, confirms to get into the time of power save mode, specifically comprises:
Said power back-off node confirms to get into the time of power save mode; And
In acknowledge message, carry the time time information corresponding of determining, and
The affirmation message of carrying temporal information is sent to each the energy-conservation node in the energy-conservation groups of nodes.
14. method as claimed in claim 9 is characterized in that, said power back-off node confirms to get into the time of power save mode, specifically comprises:
According to the time of the said acknowledge message of transmission, utilize the rule of confirming the time of entering power save mode in advance with the time according to the transmission acknowledge message of other energy-conservation nodes and power back-off node agreement, confirm to get into the time of power save mode.
15. a power back-off node device is characterized in that, comprising:
First receiving element is used for receiving the request message that is used to ask to get into power save mode that the energy-conservation node of energy-conservation groups of nodes is sent, and said energy-conservation groups of nodes comprises at least one energy-conservation node;
Judging unit after being used for first receiving element and receiving described request message, judges whether to allow said energy-conservation groups of nodes to get into power save mode;
First transmitting element is used for when judgment unit judges goes out to allow to get into power save mode, and the energy-conservation node of each in said energy-conservation groups of nodes sends acknowledge message;
Confirm the unit, be used for affirmation message, confirm to get into the time of power save mode according to the transmission of first transmitting element;
Performance element is used for confirming that time that the unit is determined former coverage to said energy-conservation each energy-conservation node of groups of nodes covers compensation.
16. node device as claimed in claim 15 is characterized in that, also comprises:
Second transmitting element is used for when said judgment unit judges goes out not allow to get into power save mode, sends to the energy-conservation node that sends described request message and waits notice.
17. node device as claimed in claim 15 is characterized in that, also comprises:
Second receiving element is used for receiving the message of cancelling that the energy-conservation node of said energy-conservation groups of nodes sends;
Abort unit; Be used for receiving when cancelling message, cancel the energy-conservation node of first transmitting element each in said energy-conservation groups of nodes and send acknowledge message at first transmitting element, second receiving element before the energy-conservation node of each of said energy-conservation groups of nodes sends acknowledge message.
18. an energy-conservation node device is characterized in that, comprising:
First receiving element is used for the affirmation message that received power compensation node is sent according to described request message correspondence;
Confirm the unit, the affirmation message that is used for receiving according to first receiving element confirms to get into the time of power save mode;
Performance element is used for confirming that the time that the unit is determined gets into power save mode.
19. energy-conservation node device as claimed in claim 18 is characterized in that, also comprises:
Monitoring unit is used to monitor the condition whether said energy-conservation node device satisfies predetermined entering power save mode;
First transmitting element is used for when monitoring unit monitors the condition that satisfies predetermined entering power save mode, sends the request message that is used to ask to get into power save mode to the power back-off node;
The affirmation message that said first receiving element receives is that the power back-off node is sent according to the request message that first transmitting element sends.
20. energy-conservation node device as claimed in claim 19 is characterized in that, also comprises:
Second receiving element is used for the notice that waits that described request message correspondence that received power compensation node sends according to first transmitting element sends;
Said first receiving element second receiving element receive wait notice after, wait for to receive the affirmation message that said power back-off node is sent.
21. energy-conservation node device as claimed in claim 19 is characterized in that, also comprises:
Second transmitting element; Be used for after first transmitting element sends described request message; When monitoring unit monitors the condition that satisfies predetermined entering power save mode, send the message of cancelling that is used to cancel described request message that first transmitting element sends to the power back-off node.
22. a network energy-saving system is characterized in that, comprises energy-conservation groups of nodes, power back-off node, comprises a predetermined bunch first node in the said energy-conservation groups of nodes, wherein:
Other energy-conservation nodes in the energy-conservation groups of nodes except that bunch first node are used for when satisfying the condition of predetermined entering power save mode, send the request message that is used to ask to get into power save mode to said bunch of first node; And after receiving the affirmation message that said bunch of first node send, confirm to get into the time of power save mode according to this acknowledge message, and on this time of determining, get into power save mode;
Bunch first node; Be used for after receiving other the energy-conservation node sent request message of energy-conservation groups of nodes that self belong to; Judge whether to allow to get into power save mode; When judging permission entering power save mode, each energy-conservation node in said energy-conservation groups of nodes except that self and power back-off node send acknowledge message, and confirm to get into the time of power save mode; And on the said time of determining, get into power save mode;
The power back-off node; After being used to receive the affirmation message that said bunch of first node send; According to definite time that gets into power save mode of this acknowledge message, and the former coverage to each energy-conservation node in the said energy-conservation groups of nodes covers compensation on the time of determining.
23. a network energy-saving method is characterized in that, comprising:
The power back-off node receives the affirmation message that energy-conservation node is sent, and
According to definite time that gets into power save mode of the affirmation message that receives, and
Former coverage to each energy-conservation node in the predetermined energy-conservation groups of nodes at said energy-conservation node place on the time of determining covers compensation.
24. a network energy-saving method is characterized in that, comprising:
Bunch first node receives that other energy-conservation nodes in the energy-conservation groups of nodes at self place send be used to ask to get into the request message of power save mode after, judge whether to allow to get into power save mode, and
When judging permission entering power save mode, each energy-conservation node in said energy-conservation groups of nodes except that self and power back-off node send acknowledge message; And
Confirm to get into the time of power save mode;
On the said time of determining, get into power save mode.
25. method as claimed in claim 24 is characterized in that, a bunch first node judges whether to allow to get into power save mode, specifically comprises:
Said bunch of first node determines whether to receive the request message that is used to ask to get into power save mode that the every other energy-conservation node except that self is sent in the said energy-conservation groups of nodes; And
When receiving every other energy-conservation node sent request message, confirm to allow to get into power save mode; Otherwise,
Confirm not allow to get into power save mode.
26. method as claimed in claim 25 is characterized in that, a bunch first node also comprises after determining and not allowing to get into power save mode:
Energy-conservation node transmission to sending described request message waits notice.
27. method as claimed in claim 24 is characterized in that, each energy-conservation node in said energy-conservation groups of nodes except that self and power back-off node also comprise before sending acknowledge message:
Judge whether to receive the message of cancelling that the energy-conservation node that sends described request message sends, and
Receive when cancelling message, the energy-conservation node of cancellation each in said energy-conservation groups of nodes sends acknowledge message.
28. a power back-off node device is characterized in that, comprising:
Receiving element is used to receive the affirmation message that energy-conservation node is sent;
Confirm the unit, the affirmation message that is used for receiving according to receiving element confirms to get into the time of power save mode;
Performance element is used for covering compensation in the former coverage of predetermined energy-conservation each energy-conservation node of groups of nodes of confirming on the time that the unit is determined said energy-conservation node to be belonged to.
29. an energy-conservation node device is characterized in that, comprising:
First receiving element is used for receiving the request message that is used to ask to get into power save mode that other energy-conservation nodes of energy-conservation groups of nodes at said energy-conservation node device place are sent;
Judging unit after being used for first receiving element and receiving described request message, judges whether to allow to get into power save mode;
First transmitting element is used for when judgment unit judges goes out to allow to get into power save mode, and other energy-conservation nodes of each in energy-conservation groups of nodes and power back-off node send acknowledge message;
Confirm the unit, be used for affirmation message, confirm to get into the time of power save mode according to the transmission of first transmitting element;
Performance element gets into power save mode on the time that is used for determining in said definite unit.
30. a network energy-saving system is characterized in that, comprises energy-conservation groups of nodes and power back-off node, comprises at least two energy-conservation nodes in the said energy-conservation groups of nodes, wherein:
Energy-conservation node is used for when self satisfies the condition of predetermined entering power save mode, and the energy-conservation nodes of other in the energy-conservation groups of nodes that self belongs to send the request message that is used to ask to get into power save mode; And after receiving the positive reply that other energy-conservation node correspondences send; Judge whether to allow said energy-conservation groups of nodes to get into power save mode; And when judging permission entering power save mode, other energy-conservation nodes in said energy-conservation groups of nodes and power back-off node send acknowledge message; Confirm to get into the time of power save mode according to this acknowledge message, and on this time of determining, get into power save mode; And after other the energy-conservation node sent request message in receiving the energy-conservation groups of nodes that self belongs to, when self satisfies the condition of predetermined entering power save mode, send positive reply;
The power back-off node; After being used for receiving the affirmation message that the energy-conservation node of energy-conservation groups of nodes sends; According to definite time that gets into power save mode of this acknowledge message, and the former coverage to each energy-conservation node in the said energy-conservation groups of nodes covers compensation on the time that this is determined.
31. a network energy-saving method is characterized in that, comprising:
When the first energy-conservation node in the energy-conservation groups of nodes satisfied the condition of predetermined entering power save mode at self, the energy-conservation nodes of other in the energy-conservation groups of nodes that self belongs to sent the request message that is used to ask to get into power save mode; And
After receiving the positive reply that other energy-conservation node correspondences send; Judge whether to allow said energy-conservation groups of nodes to get into power save mode; Said positive reply is that said other energy-conservation nodes are receiving after the described request message, when said other energy-conservation nodes satisfy the condition of predetermined entering power save mode, sending, and
When judging permission entering power save mode, other energy-conservation nodes in said energy-conservation groups of nodes and power back-off node send acknowledge message;
The first energy-conservation node confirm to get into time of power save mode according to said acknowledge message, and
On this time of determining, get into power save mode.
32. method as claimed in claim 31 is characterized in that, after the said first energy-conservation node sends described request message, also comprises:
Receive that other energy-conservation node correspondences send wait notice after; Continue to wait for receive positive reply, said to wait notice be other energy-conservation nodes receive behind the request message, said other energy-conservation nodes load send when not satisfying the condition of predetermined entering power save mode.
33. method as claimed in claim 31 is characterized in that, the said first energy-conservation node judges whether to allow to get into power save mode, specifically comprises:
The said first energy-conservation node determines whether to receive the positive reply that the every other energy-conservation node except that self is sent in the said energy-conservation groups of nodes; And
When receiving the positive reply that every other energy-conservation node sends, confirm to allow to get into power save mode; Otherwise,
Confirm not allow said entering power save mode.
34. method as claimed in claim 32 is characterized in that, the said first energy-conservation node also comprises when continuing to wait for the reception positive reply:
When self not satisfying the condition of predetermined entering power save mode, send the message of cancelling that is used to cancel described request message to said other energy-conservation nodes.
35. an energy-conservation node device is characterized in that, comprising:
Monitoring unit is used to monitor the condition that self whether satisfies predetermined entering power save mode;
First transmitting element is used for when monitoring unit monitors the condition that self satisfies predetermined entering power save mode, and the energy-conservation node device of other in same energy-conservation node device group sends the request message that is used to ask to get into power save mode;
First receiving element; Be used to receive the positive reply that other energy-conservation nodes are sent according to the described request message correspondence of first transmitting element transmission, said positive reply is that other energy-conservation nodes are receiving behind the request message, when said other energy-conservation nodes satisfy the condition of predetermined entering power save mode, sending;
Confirm the unit, be used for the positive reply that receives according to first receiving element, determine whether to allow said energy-conservation groups of nodes to get into power save mode;
Second transmitting element is used for determining when allowing to get into power save mode in definite unit, and other energy-conservation nodes in said energy-conservation groups of nodes and power back-off node send acknowledge message;
Confirm the unit, be used for affirmation message, confirm to get into the time of power save mode according to the transmission of second transmitting element;
Performance element is used for confirming to get into power save mode on the time that the unit is determined;
The 3rd transmitting element is used for after receiving other energy-conservation node sent request message of same energy-conservation groups of nodes, when self satisfies the condition of predetermined entering power save mode, sends positive reply.
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