CN103179591A - Intelligent power supply management method and system in Time Division Long Term Evolution (TD-LTE) system - Google Patents
Intelligent power supply management method and system in Time Division Long Term Evolution (TD-LTE) system Download PDFInfo
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Abstract
The invention discloses an intelligent power supply management method and a system in a Time Division Long Term Evolution (TD-LTE) system. The method comprises steps of determining whether the physical resource block use rate after one or more downlink sub-frames are stopped scheduling is less than or equal to a second threshold when a Multi-Access Computer (MAC) determines the current physical resource block use rate is smaller than a first threshold; if the physical resource block use rate is less than or equal to the second threshold, notifying operation administration and maintenance (OAM) of executing the retransmission processing operation in the next period by the MAC; determining whether the physical resource block use rate is smaller than a second threshold by the MAC when the next period finishes; and stopping scheduling one or more downlink sub-frames by the MAC. According to the technical scheme, the electricity of a base station is saved, and the normal scheduling effect of users in the network is guaranteed.
Description
Technical field
The present invention relates to the communications field, intelligent power source management method and system in a kind of TD-LTE system.
Background technology
Long Term Evolution (Long Term Evolution, referred to as LTE) be the evolution of 3G technology, it improves and has strengthened the aerial access technology of 3G, adopt OFDM (Orthogonal Frequency Division Multiple, referred to as OFDM) and multiple-input and multiple-output (Multiple Input Multiple Output is referred to as MIMO) as the sole criterion of its wireless network evolution.Can provide the peak rate of descending 100Mbit/s and up 50Mbit/s under the 20MHz spectral bandwidth, thereby improve the performance of Cell Edge User, improve cell capacity and reduce system delay.
MANET (Self-OrganizedNetwork, referred to as SON) be a kind of technology of automatically carrying out network configuration and optimization, the characteristics of this technology are the self-configuring self-optimizings, use in the LTE system and make the LTE base station can configuration network parameter automatic according to certain measurement, and carry out self-optimizing according to network change, thereby keep network performance optimum, saved simultaneously a large amount of manpower and materials.
Energy-saving and emission-reduction more and more receive people's concern as the part of SON.In brief, exactly in the situation that do not affect the normal operation of network, reduce as much as possible the power consumption of base station, such as: when the user is less, all users' resource can be concentrated in together and dispatch, and the running time-frequency resource that will not dispatch discharges, to reach the effect of power and energy saving.
Summary of the invention
The invention provides intelligent power source management method and system in a kind of TD-LTE system, how to utilize the least possible running time-frequency resource to come as current user's service in the TD-LTE system to solve at least to lack in correlation technique, and idle running time-frequency resource as much as possible is discharged the problem of the technical scheme of disposal ability in not impact system again simultaneously.
According to an aspect of the present invention, provide intelligent power source management method in a kind of TD-LTE system.
Comprise according to the intelligent power source management method in TD-LTE of the present invention system: MAC is in definite current physical piece utilance during less than first threshold, and whether the Physical Resource Block utilance that judgement stops dispatching after one or more descending sub frames is less than or equal to Second Threshold; If so, MAC notice OAM only carries out the retransmission process operation in next measurement period; Physical Resource Block utilance when MAC determines next measurement period end is less than or equal to Second Threshold; MAC stops dispatching one or more descending sub frames.
In said method, before MAC determines current physical piece utilance, also comprise: MAC receives the first notification message that comes from OAM, wherein, carries indication information and the measurement period of opening power saving function in the first notification message.
In said method, MAC determines that current physical piece utilance comprises: MAC calculates the sum of the Physical Resource Block that has used when current measurement period finishes; MAC calculates the sum of the Physical Resource Block that can use when current measurement period finishes; The ratio of the sum of the sum of the definite Physical Resource Block that has used of MAC and the Physical Resource Block that can use is current physical piece utilance.
In said method, the Physical Resource Block utilance that MAC determines to stop to dispatch after one or more descending sub frames comprises: MAC calculates the sum of the Physical Resource Block that has used when current measurement period finishes; MAC calculates the sum that stops dispatching the Physical Resource Block that can use after one or more descending sub frames when current measurement period finishes; The ratio of the sum that MAC determines the Physical Resource Block used and the sum that stops dispatching the Physical Resource Block that can use after one or more descending sub frames is the Physical Resource Block utilance that stops dispatching after one or more descending sub frames.
In said method, after Physical Resource Block utilance when MAC determines that next measurement period finishes is less than or equal to Second Threshold, before MAC stops dispatching one or more descending sub frames, also comprise: OAM receives the descending sub frame that comes from MAC and stops scheduling controlling message, wherein, descending sub frame stops carrying in scheduling controlling message the subframe message bit pattern of MAC; OAM resolves descending sub frame and stops scheduling controlling message, obtains the subframe bitmap of MAC and preserves, and sends to MAC the response message that descending sub frame stops scheduling controlling message simultaneously; OAM sends the message of closing the descending sub frame power amplifier to remote radio unit (RRU) RRU via TCM; OAM receives the response message of the message of closing the descending sub frame power amplifier come from RRU via TCM, wherein, carry the subframe bitmap after renewal in response message; Whether the subframe bitmap after the OAM judgement is upgraded is consistent with the subframe bitmap of preservation; If consistent, OAM sends the Indication message that stops dispatching one or more descending sub frames to MAC.
In said method, after MAC stops dispatching one or more descending sub frames, also comprise: MAC during more than or equal to first threshold, sends the request message that reschedules one or more descending sub frames in definite current physical piece utilance to OAM; MAC receives the response message of the request message that reschedules one or more descending sub frames that comes from OAM; MAC reschedules one or more descending sub frames.
In said method, before MAC reschedules one or more descending sub frames, also comprise: OAM sends the notification message that reschedules one or more descending sub frames to RRU via TCM; OAM receives the response message of the notification message that reschedules one or more descending sub frames that comes from RRU via TCM.
In said method, after MAC stops dispatching one or more descending sub frames, also comprise: when arriving the scheduled time, MAC receives the second notification message that comes from OAM, and wherein, the second notification message carries the indication information of closing power saving function; MAC reschedules the current descending sub frame that stops dispatching.
In said method, before MAC reschedules the current descending sub frame that stops dispatching, also comprise: OAM sends the notification message that reschedules the current descending sub frame that stops dispatching to RRU via TCM; OAM receives the response message of the notification message that comes from the current descending sub frame that stops dispatching of rescheduling of RRU via TCM.
According to a further aspect in the invention, provide intelligent power management system in a kind of TD-LTE system.
Comprise according to the intelligent power management system in TD-LTE of the present invention system: MAC; MAC comprises: the first determination module is used for determining that current physical piece utilance is less than first threshold; The first judge module is used in definite current physical piece utilance during less than first threshold, judges whether the Physical Resource Block utilance that stops dispatching after one or more descending sub frames is less than or equal to Second Threshold; Notification module is used for being output as when being at judge module, and notice Operations, Administration and Maintenance subsystem OAM only carries out the retransmission process operation in next measurement period; The second determination module, the Physical Resource Block utilance when being used for determining next measurement period end is less than or equal to Second Threshold; Scheduler module is used for stopping dispatching one or more descending sub frames.
In said system, above-mentioned MAC also comprises: the first receiver module, be used for receiving the first notification message that comes from OAM, and wherein, carry indication information and the measurement period of opening power saving function in notification message.
Said system also comprises: OAM; OAM comprises: the second receiver module, and be used for receiving the descending sub frame that comes from MAC and stop scheduling controlling message, wherein, descending sub frame stops carrying in scheduling controlling message the subframe message bit pattern of MAC; Parsing module is used for resolving descending sub frame and stops scheduling controlling message, obtains the subframe bitmap of MAC and preserves, and sends to MAC the response message that descending sub frame stops scheduling controlling message simultaneously; The first sending module is used for sending to remote radio unit (RRU) RRU via TCM the message of closing the descending sub frame power amplifier; The 3rd receiver module is used for receiving via TCM the response message of the message of closing the descending sub frame power amplifier that comes from RRU, wherein, carries the subframe bitmap after renewal in response message; The second judge module, whether the subframe bitmap that is used for after judgement is upgraded is consistent with the subframe bitmap of preservation; The second sending module is used for being output as when being at the second judge module, sends the Indication message that stops dispatching one or more descending sub frames to MAC; MAC also comprises: the 3rd sending module is used for sending descending sub frame to OAM and stops scheduling controlling message; The 4th receiver module is used for receiving the message that stops dispatching one or more descending sub frames that comes from OAM.
In said system, above-mentioned MAC also comprises: the 4th sending module is used in definite current physical piece utilance rescheduling the request message of one or more descending sub frames to the OAM transmission during more than or equal to first threshold; The 5th receiver module is used for the response message that reception comes from the request message that reschedules one or more descending sub frames of OAM; Scheduler module, also be used for rescheduling one or more descending sub frames; OAM also comprises: the 6th receiver module is used for receiving the request message that reschedules one or more descending sub frames that comes from MAC; The 5th sending module is for send the response message of the request message that reschedules one or more descending sub frames to MAC.
In said system, above-mentioned MAC also comprises: the 8th receiver module, be used for receiving the second notification message that comes from OAM when arriving the scheduled time, and wherein, the second notification message carries the indication information of closing power saving function; Scheduler module also is used for rescheduling the current descending sub frame that stops dispatching; OAM also comprises: the 6th sending module is used for sending the second notification message to MAC.
By the present invention, adopt when MAC determines current physical piece utilance less than first threshold, continue the Physical Resource Block utilance that judgement stops dispatching after one or more descending sub frames and whether be less than or equal to Second Threshold; If so, MAC notice OAM only carries out the retransmission process operation in next measurement period; When next measurement period end MAC determines that the Physical Resource Block utilance is less than or equal to Second Threshold, stop dispatching one or more descending sub frames, solved and lacked in the correlation technique how to utilize the least possible running time-frequency resource be current user's service in the TD-LTE system, and idle running time-frequency resource as much as possible is discharged, the problem of the technical scheme of disposal ability in not impact system again simultaneously, and then reached the electricity saving and energy saving of effectively realizing the base station, guaranteed again the effect of user's normal consistency in the network simultaneously.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is according to the intelligent power source management method flow chart in the TD-LTE system of the embodiment of the present invention;
Fig. 2 is the intelligent power source management method flow chart in the TD-LTE system according to the preferred embodiment of the invention;
Fig. 3 is power saving function closing flow path figure according to the preferred embodiment of the invention;
Fig. 4 is the flow chart of the one or more descending sub frames of MAC scheduling according to the preferred embodiment of the invention;
Fig. 5 is the structured flowchart of the intelligent power management system in the TD-LTE system of the embodiment of the present invention of basis; And
Fig. 6 is the structured flowchart of the intelligent power management system in the TD-LTE system of the preferred embodiment of the present invention of basis.
Embodiment
Hereinafter also describe in conjunction with the embodiments the present invention in detail with reference to accompanying drawing.Need to prove, in the situation that do not conflict, embodiment and the feature in embodiment in the application can make up mutually.
Fig. 1 is according to the intelligent power source management method flow chart in the TD-LTE system of the embodiment of the present invention.As shown in Figure 1, the method mainly comprises following processing:
Step S102:MAC is in definite current physical piece utilance during less than first threshold, and whether the Physical Resource Block utilance that judgement stops dispatching after one or more descending sub frames is less than or equal to Second Threshold;
Step S104: if MAC notice OAM only carries out the retransmission process operation in next measurement period;
Physical Resource Block utilance when step S106:MAC determines next measurement period end is less than or equal to Second Threshold;
Step S108:MAC stops dispatching one or more descending sub frames.
In correlation technique, lack how to utilize the least possible running time-frequency resource be current user's service in the TD-LTE system, and idle running time-frequency resource as much as possible is discharged, simultaneously the technical scheme of disposal ability in not impact system again.Adopted method as shown in Figure 1, at media access control (Media Access Control, referred to as MAC) when determining current physical piece utilance less than first threshold, continue the Physical Resource Block utilance that judgement stops dispatching after one or more descending sub frames and whether be less than or equal to Second Threshold; If so, MAC notice (Operations, Administration and Maintenance is referred to as OAM) is only carried out the retransmission process operation in next measurement period; When next measurement period end MAC determines that the Physical Resource Block utilance is less than or equal to Second Threshold, stop dispatching one or more descending sub frames, solved and lacked in the correlation technique how to utilize the least possible running time-frequency resource be current user's service in the TD-LTE system, and idle running time-frequency resource as much as possible is discharged, the problem of the technical scheme of disposal ability in not impact system again simultaneously, and then reached the electricity saving and energy saving of well realizing the base station, guaranteed again the effect of user's normal consistency in the network simultaneously.
Need to prove, the present invention can when the user is less, close the part power amplifier of remote radio unit (RRU) (Radio Remote Unit is referred to as RRU), to reach the purpose of economizing on energy and electricity; Simultaneously, when the user increased, the power amplifier that can rapidly RRU be closed was opened, to improve the disposal ability of system.In each measurement period finish time, if stop dispatching Physical Resource Block (the Physical Resource Block after one or more descending sub frames, referred to as PRB) utilance M3 (T) is less than or equal to Second Threshold, in next measurement period, first be this transmission intercal (Time Transmission Interval, referred to as TTI) on mixed automatic retransfer request (Hybrid-ARQ, referred to as HARQ) cleaning work, namely no longer dispatch new biography, simultaneously complete retransmission process; Then when next measurement period finishes, again add up the PRB utilance, as still satisfying the condition of closing, send closing information and request to OAM, and begin immediately the base band shutoff operation, need not wait RRU to respond; The closing sequence of subframe power amplifier is decided by MAC, before sending certain subframe power amplifier shutdown command, need to guarantee on this subframe both without the new biography data, and without the tuple certificate, and synchronizing information, broadcast message, system message can not dispatched in this subframe yet.
Preferably, before execution in step S102, can also comprise: MAC receives the first notification message that comes from OAM, wherein, carries indication information and the measurement period of opening power saving function in this first notification message.
Need to prove, then the present invention passes through MAC by base station foreground OAM by backstage, base station OMC configuration power down switch and measurement period.Stop dispatching the mode that one or more subframes adopt measurement period+Event triggered, only stop dispatching one or more subframe at every turn.By the judgement that subframe was closed or opened to PRB occupancy in measurement period, measurement period is configurable.MAC only after receiving the RRU response message, in the judgement that the judgement moment of adjacent next measurement period just stops dispatching one or more descending sub frames, adjudicate and constantly do not carry out by other measurement period.
Preferably, in step S102, MAC determines that current physical piece utilance can comprise following processing:
(1) MAC calculates the sum of the Physical Resource Block that has used when current measurement period finishes;
(2) MAC calculates the sum of the Physical Resource Block that can use when current measurement period finishes;
(3) MAC determines the sum of the Physical Resource Block used and the ratio of the sum of the Physical Resource Block that can use is current physical piece utilance.
Preferably, in step S102, the Physical Resource Block utilance that MAC determines to stop to dispatch after one or more descending sub frames can comprise following processing:
(1) MAC calculates the sum of the Physical Resource Block that has used when current measurement period finishes;
(2) MAC calculates the sum that stops dispatching the Physical Resource Block that can use after one or more descending sub frames when current measurement period finishes;
(3) ratio of the MAC sum of determining the Physical Resource Block used and the sum that stops dispatching the Physical Resource Block that can use after one or more descending sub frames is the Physical Resource Block utilance that stops dispatching after one or more descending sub frames.
Need to prove, when power down switch was opened, MAC was according to the measurement period of backstage configuration, in each measurement period finish time, calculate respectively the Physical Resource Block PRB utilance M2 (T) of current time reality, and the PRB utilance M3 (T) after adjusting.
Preferably, after execution in step S106, before step S108, can also comprise following processing:
(1) OAM receives the descending sub frame come from MAC and stops scheduling controlling message, and wherein, descending sub frame stops carrying in scheduling controlling message the subframe message bit pattern of MAC;
(2) OAM parsing descending sub frame stops scheduling controlling message, obtains the subframe bitmap of MAC and preserves, and sends to MAC the response message that descending sub frame stops scheduling controlling message simultaneously;
(3) OAM sends the message of closing the descending sub frame power amplifier to remote radio unit (RRU) RRU via TCM;
(4) OAM receives the response message of the message of closing the descending sub frame power amplifier come from RRU via TCM, wherein, carries the subframe bitmap after renewal in response message;
Whether the subframe bitmap after (5) the OAM judgement is upgraded is consistent with the subframe bitmap of preservation;
(6) if consistent, OAM sends the response message that stops dispatching one or more descending sub frames to MAC.
Need to prove, if satisfy the condition stop dispatching one or more subframe when descending, in next measurement period, MAC first does the HARQ cleaning work of closing in advance on subframe, namely no longer dispatches new biography, and is simultaneously complete retransmission process; Then when next measurement period finishes, again add up the PRB occupancy.As still satisfying the condition of closing, send to OAM with the form of subframe bitmap and close the subframe request, and MAC begins the base band shutoff operation immediately, need not wait the response of RRU to return.That is: closing is that MAC closes immediately, and base band is first closed, and RRU can close later on.But, closing immediately MAC is only the preferred implementation that a kind of the most simply realization of the present invention stops dispatching one or more descending sub frames, in implementation process, MAC can also adopt the mode identical with rescheduling one or more descending sub frames, after wait receives the response message that RRU opens the descending sub frame power amplifier, then stop dispatching one or more descending sub frames.
Preferably, at step S108, after MAC stops dispatching one or more descending sub frames, can also comprise following processing:
(1) MAC during more than or equal to first threshold, sends the request message that reschedules one or more descending sub frames in definite current physical piece utilance to OAM;
(2) MAC receives the response message of the request message that reschedules one or more descending sub frames that comes from OAM;
(3) MAC reschedules one or more descending sub frames.
Need to prove, if the PRB utilance M2 (T) of current time reality is when being greater than or equal to first threshold, send open power amplifier signaling to OAM, after OAM receives that RRU opens the feedback signaling of power amplifier success, then open the power amplifier situation by subframe and dispatch.
In preferred implementation process, before MAC reschedules one or more descending sub frames, can further include:
(1) OAM sends the notification message that reschedules one or more descending sub frames to RRU via TCM;
(2) OAM receives the response message of the notification message that reschedules one or more descending sub frames that comes from RRU via TCM.
Need to prove, in order to reduce the system signaling expense, MAC thinks that namely the power amplifier of next this subframe of TTI is closed after subframe power amplifier closing information and request are issued RRU by OAM, need not to wait for that RRU closes the feedback of power amplifier; In order to guarantee the normal transmission of data, after MAC opens the subframe power amplifier information and asks to issue RRU by OAM, after needing to wait for that RRU opens the feedback information of subframe power amplifier, just can dispatch on this subframe.That is, if satisfy when rescheduling the condition of one or more descending sub frame, MAC sends out the information of opening and request to OAM immediately, and after must waiting the OAM response message to return, could start the MAC scheduling operation.
Preferably, at execution in step S108, after MAC stops dispatching one or more descending sub frames, can also comprise following processing:
(1) when arriving the scheduled time, MAC receives the second notification message that comes from OAM, and wherein, the second notification message carries the indication information of closing power saving function;
(2) MAC reschedules the current descending sub frame that stops dispatching.
Need to prove, it is preferred embodiment a kind of in the present invention reaching the scheduled time, can also close power saving function by the mode that manually stops.
In preferred implementation process, before MAC reschedules the current descending sub frame that stops dispatching, can further include:
(1) OAM sends the notification message that reschedules the current descending sub frame that stops dispatching to RRU via TCM;
(2) OAM receives the response message of the notification message that comes from the current descending sub frame that stops dispatching of rescheduling of RRU via TCM.
Below in conjunction with Fig. 2 to Fig. 4, above-mentioned preferred implementation is further described.
Fig. 2 is the dispatching method flow chart of descending sub frame according to the preferred embodiment of the invention.As shown in Figure 2, the method mainly comprises following treatment step:
Step S202: when the power saving function of certain residential quarter is opened on the backstage, need configuration measurement period and time information, and be issued to OAM;
Step S204:OAM sends the configuration information syn ack;
Step S206:OAM need to analyze the temporal information in each cell energy-saving algorithm parameter, control the opening and closing of power saving function according to temporal information, when certain cell energy-saving switch opens, OAM need to issue the Energy Saving Algorithm lastest imformation to the MAC subsystem, and notice MAC power saving function is opened;
Step S208:MAC subsystem sends configuration response message to OAM;
When step S210:MAC need to open or close subframe in judgement, send subframe switch control message to OAM, carry the subframe message bit pattern of MAC in this message, this bitmap is the subframe bitmap after expectation is adjusted, and MAC waits for the subframe switch control response message that OAM returns;
Step S212:OAM resolves message after receiving the subframe switch control message that MAC sends, obtain subframe bitmap wherein and preserve, and constructs simultaneously subframe switch control response message and sends to MAC; MAC was left intact before the subframe switch of receiving OAM is controlled notification message;
Step S214:OAM sends to time division duplex public administration (TDDCommon Management is referred to as TCM) notification message that subframe is opened or closed after receiving the subframe switch control message that MAC sends, and waits for the TCM response;
Step S216:TCM receives that the backward RRU of notification message that OAM sends sends RRU state control request message, and waits for the RRU response;
Step S218:RRU according to message content, carries out opening and closing motion of subframe power amplifier after receiving that the RRU state is controlled request message, after finishing dealing with, replys the RRU response message to TCM;
After step S220:TCM receives the response message of RRU, reply to OAM the push-notification-answer message that subframe is opened or closed;
After step S222:OAM received this response message, relatively whether the subframe bitmap of TCM response and the local subframe bitmap of preserving be consistent, if unanimously send subframe switch control notification message to MAC;
After the notified message of step S224:MAC, carry out the corresponding operation of processing according to the subframe message bit pattern that carries in message; Simultaneously, structure subframe switch is controlled notification acknowledgement to OAM.
So far, a handling process finishes, and MAC proceeds the statistics of PRB occupancy.
Fig. 3 is power saving function closing flow path figure according to the preferred embodiment of the invention.As shown in Figure 3, the method mainly comprises following treatment step:
Step S302: as (the Operation Management Center of operation maintenance center, referred to as OMC) when determining to close the power saving function of certain residential quarter, perhaps by the Energy Saving Algorithm time parameter of setting, when arriving the energy-conservation shut-in time, OMC sends the power saving function close message to OAM;
Step S304:OAM replys the configuration synchronization response message to OMC;
Step S306:OAM sends to TCM the notification message that subframe is opened, and wherein, the subframe bitmap that carries in this message is 10 subframe standard-sized sheets, and waits for the TCM response;
Need to prove, a radio frames comprises 10 subframes, and when backstage, base station OMC determined to close the power saving function of certain residential quarter, RRU all opened the power amplifier of 10 subframes and gets final product.
Step S308:TCM receives that the backward RRU of notification message that OAM sends sends RRU state control request message, and waits for the RRU response;
After step S310:RRU receives that the RRU state is controlled request message, according to message content, carry out the standard-sized sheet action of subframe, after finishing dealing with, reply the RRU response message to TCM;
After step S312:TCM receives the response message of RRU, return to OAM the push-notification-answer message that subframe is opened;
After step S314:OAM received this response message, needing this response of judgement was to close and the processing response of carrying out as the cell energy-saving function that step S02 describes, or the response of processing during normal energy-conservation opening, and under both of these case, follow-up processing action is different; After if OAM receives the response of TCM, wherein, the subframe bitmap that carries is 10 subframe standard-sized sheets, is the scene of step S02 description this moment, and OAM is to CMAC transmission algorithm updating message, tells the power saving function of MAC this residential quarter to close;
After step S316:MAC receives the algorithm parameter configuring request, carry out the corresponding operation of processing according to the energy-conservation switching information of carrying in message; Simultaneously, construction algorithm parameter configuration response message is to OAM.
Fig. 4 is the flow chart of the one or more descending sub frames of MAC scheduling according to the preferred embodiment of the invention.As shown in Figure 4, the method can comprise following treatment step:
Step S402:MAC safeguards 2 PRB utilances, and one is the PRB utilance M2 (T) of current time reality, and one is to adjust PRB utilance M3 (T) afterwards.The computing formula of PRB occupancy is
Wherein, M1 (T) is the sum of the PRB that has used in statistic period T, and total PRB number of namely dispatching, P (T) are PRB sum available in measurement period.The subframe available PRB sum afterwards that the P of current time (T) has closed for removing RRU.P (T) after adjusting closes available PRB sum after a subframe again for the subframe of removing RRU and having closed and hypothesis;
Step S404: in the measurement period judgement finish time, if the actual PRB utilance of current time M2 (T) 〉=70% enters step S406 when (being equivalent to above-mentioned first threshold); Otherwise, enter step S418;
Step S406: send the subframe message bit pattern, notice OAM opens a subframe;
Step S408: start overtime timer;
Step S410: if receive the RRU confirmation that OAM forwards, forward step S416 to; Otherwise, enter step S412;
Step S412: judge whether timer is overtime, if overtime, enter step S414; If not overtime, forward step S410 to;
Step S414: the retransmission sub frame message bit pattern forwards step S408 to;
Step S416: overtime timer is clear 0, and the flow process of opening a subframe finishes;
Step S418: in measurement period finish time, whether the PRB utilance M3 (T) after judgement is adjusted is less than or equal to 50%, if M3 (T) enters step S420 less than or equal to 50% (being equivalent to above-mentioned Second Threshold); Otherwise, change step S434 over to;
Need to prove, first threshold and Second Threshold can equate.
Step S420: judge current time, whether have the subframe of iPreClosed=2, if exist, forward step S428 to; If there is no, enter step S422;
Need to prove, iPreClosed=2 represents namely will close the subframe of scheduling.
Step S422: judge whether to exist the descending sub frame that to close, if exist, enter step S424; If there is no, handling process finishes;
Step S424: determine the descending sub frame that needs are closed;
Step S426: judge whether retransmit on this subframe or semi-persistent scheduling request (SPS) scheduling; If no, enter step S428; If have, forward step S432 to;
Step S428: make descending sub frame parameter iPreClosed=1;
Need to prove, iPreClosed=1 represents to be used for the subframe of scheduling.
Step S430: send the subframe message bit pattern, notice OAM closes a descending sub frame, and a subframe closing flow path finishes;
Step S432: make iPreClosed=2, handling process finishes;
Step S434: judge whether current time exists the subframe of iPreClosed=2, if exist, enter step S436; If there is no, handling process finishes;
Step S436: make iPreClosed=0, handling process finishes.
Need to prove, iPreClosed=0 represents the subframe of normal consistency.
Fig. 5 is the structured flowchart according to the intelligent power management system in the TD-LTE system of the embodiment of the present invention.As shown in Figure 5, the dispatching patcher of this descending sub frame mainly comprises MAC10; MAC10 may further include: the first determination module 100 is used for determining that current physical piece utilance is less than first threshold; The first judge module 102 is used in definite current physical piece utilance during less than first threshold, judges whether the Physical Resource Block utilance that stops dispatching after one or more descending sub frames is less than or equal to Second Threshold; Notification module 104 is used for being output as when being at judge module, and notice OAM only carries out the retransmission process operation in next measurement period; The second determination module 106, the Physical Resource Block utilance when being used for determining next measurement period end is less than or equal to Second Threshold; Scheduler module 108 is used for stopping dispatching one or more descending sub frames.
Adopt the dispatching patcher of descending sub frame as shown in Figure 5, when the first determination module 100 of MAC10 was determined current physical piece utilance less than first threshold, whether the Physical Resource Block utilance that the first judge module 102 judgements stop dispatching after one or more descending sub frames was less than or equal to Second Threshold; Notification module 104 is output as when being at judge module, and notice OAM only carries out the retransmission process operation in next measurement period; Physical Resource Block utilance when the second determination module 106 is determined next measurement period end is less than or equal to Second Threshold; Scheduler module 108 stops dispatching one or more descending sub frames, thereby solved and lacked in the correlation technique how to utilize the least possible running time-frequency resource be current user's service in the TD-LTE system, and idle running time-frequency resource as much as possible is discharged, the problem of the technical scheme of disposal ability in not impact system again simultaneously, well realize the electricity saving and energy saving of base station, guaranteed again user's normal consistency in the network simultaneously.
Preferably, as shown in Figure 6, above-mentioned MAC10 can also comprise: the first receiver module 110, be used for receiving the first notification message that comes from OAM, and wherein, carry indication information and the measurement period of opening power saving function in this first notification message.
In preferred implementation process, above-mentioned the first determination module 100 may further include: the first computing unit (not shown), the sum of the Physical Resource Block that has used when being used for calculating current measurement period end; The second computing unit (not shown), the sum of the Physical Resource Block that can use when being used for calculating current measurement period end; The first determining unit (not shown) be used for to be determined the sum of the Physical Resource Block that used and the ratio of the sum of the Physical Resource Block that can use is current physical piece utilance.
In preferred implementation process, above-mentioned the first judge module 102 may further include: the 3rd computing unit (not shown), the sum of the Physical Resource Block that has used when being used for calculating current measurement period end; The 4th computing unit (not shown) is used for calculating the sum that stops dispatching the Physical Resource Block that can use after one or more descending sub frames when current measurement period finishes; The second determining unit (not shown), the ratio of sum that be used for to determine the Physical Resource Block that used and the sum that stops dispatching the Physical Resource Block that can use after one or more descending sub frames are the Physical Resource Block utilance that stops dispatching after one or more descending sub frames.
Preferably, this system can also comprise OAM20, and OAM20 can comprise: the second receiver module 200 is used for receiving the descending sub frame that comes from MAC and stops scheduling controlling message, wherein, this descending sub frame stops carrying in scheduling controlling message the subframe message bit pattern of MAC; Parsing module 202 is used for resolving descending sub frame and stops scheduling controlling message, obtains the subframe bitmap of MAC and preserves, and sends to MAC the response message that descending sub frame stops scheduling controlling message simultaneously; The first sending module 204 is used for sending to remote radio unit (RRU) RRU via TCM the message of closing the descending sub frame power amplifier; The 3rd receiver module 206 is used for receiving via TCM the response message of the message of closing the descending sub frame power amplifier that comes from RRU, wherein, carries the subframe bitmap after renewal in this response message; The second judge module 208, whether the subframe bitmap that is used for after judgement is upgraded is consistent with the subframe bitmap of preservation; The second sending module 210 is used for being output as when being at the second judge module, sends the Indication message that stops dispatching one or more descending sub frames to MAC; MAC10 can also comprise: the 3rd sending module 112 is used for sending descending sub frame to OAM and stops scheduling controlling message; The 4th receiver module 114 is used for receiving the Indication message that stops dispatching one or more descending sub frames that comes from OAM.
Preferably, above-mentioned MAC10 can also comprise: the 4th sending module 116 is used in definite current physical piece utilance rescheduling the request message of one or more descending sub frames to the OAM transmission during more than or equal to first threshold; The 5th receiver module 118 is used for the response message that reception comes from the request message that reschedules one or more descending sub frames of OAM; Scheduler module 108, also are used for rescheduling one or more descending sub frames; OAM20 can also comprise: the 6th receiver module 212 is used for receiving the request message that reschedules one or more descending sub frames that comes from MAC; The 5th sending module 214 is for send the response message of the request message that reschedules one or more descending sub frames to MAC.
Preferably, above-mentioned OAM20 can also comprise: the 6th sending module (not shown) is used for sending to RRU via TCM the notification message that reschedules one or more descending sub frames; The 7th receiver module (not shown) is for receive the response message of the notification message that reschedules one or more descending sub frames that comes from RRU via TCM.
Preferably, above-mentioned MAC10 can also comprise: the 8th receiver module 120, be used for receiving the second notification message that comes from OAM when arriving the scheduled time, and wherein, this second notification message carries the indication information of closing power saving function; Scheduler module 108, also are used for rescheduling the current descending sub frame that stops dispatching; OAM20 can also comprise: the 7th sending module 216 is used for sending the second notification message to MAC.
Preferably, above-mentioned OAM20 can also comprise: the 8th sending module (not shown) is used for sending to RRU via TCM the notification message that reschedules the current descending sub frame that stops dispatching; The 9th receiver module (not shown) is for receive the response message of the notification message that comes from the current descending sub frame that stops dispatching of rescheduling of RRU via TCM.
As can be seen from the above description, the present invention has realized following technique effect: can when the user is less, the part power amplifier of RRU be closed, to reach the purpose of economizing on energy and electricity; Simultaneously, when the user increased, the power amplifier that can rapidly RRU be closed was opened, to improve the disposal ability of system.Thereby well realize the electricity saving and energy saving of base station, guaranteed again user's normal consistency in the network simultaneously.
obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into respectively each integrated circuit modules, perhaps a plurality of modules in them or step being made into the single integrated circuit module realizes.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is only 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 modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (14)
1. the intelligent power source management method in Long Term Evolution TD SDMA access TD-LTE system, is characterized in that, comprising:
Media access control MAC is in definite current physical piece utilance during less than first threshold, and whether the Physical Resource Block utilance that judgement stops dispatching after one or more descending sub frames is less than or equal to Second Threshold;
If so, described MAC notice Operations, Administration and Maintenance subsystem OAM only carries out the retransmission process operation in next measurement period;
Physical Resource Block utilance when described MAC determines described next measurement period end is less than or equal to described Second Threshold;
Described MAC stops dispatching described one or more descending sub frame.
2. method according to claim 1, is characterized in that, before described MAC determines described current physical piece utilance, also comprises:
Described MAC receives the first notification message that comes from described OAM, wherein, carries indication information and the described measurement period of opening power saving function in described the first notification message.
3. method according to claim 1, is characterized in that, described MAC determines that described current physical piece utilance comprises:
Described MAC calculates the sum of the Physical Resource Block that has used when current measurement period finishes;
Described MAC calculates the sum of the Physical Resource Block that can use when described current measurement period finishes;
Described MAC determines that the sum of the described Physical Resource Block that has used and the ratio of the sum of the described Physical Resource Block that can use are described current physical piece utilance.
4. method according to claim 1, is characterized in that, described MAC determines that the described Physical Resource Block utilance that stops dispatching after one or more descending sub frames comprises:
Described MAC calculates the sum of the Physical Resource Block that has used when current measurement period finishes;
Described MAC calculates the sum that stops dispatching the Physical Resource Block that can use after one or more descending sub frames when described current measurement period finishes;
Described MAC determines that the sum of the described Physical Resource Block that has used and the described ratio that stops dispatching the sum of the Physical Resource Block that can use after one or more descending sub frames are the described Physical Resource Block utilance that stops dispatching after one or more descending sub frames.
5. method according to claim 1, it is characterized in that, after Physical Resource Block utilance when described MAC determines that described next measurement period finishes was less than or equal to described Second Threshold, described MAC also comprised before stopping dispatching described one or more descending sub frame:
Described OAM receives the descending sub frame that comes from described MAC and stops scheduling controlling message, and wherein, described descending sub frame stops carrying in scheduling controlling message the subframe message bit pattern of described MAC;
Described OAM resolves described descending sub frame and stops scheduling controlling message, obtains the subframe bitmap of described MAC and preserves, and sends to described MAC the response message that described descending sub frame stops scheduling controlling message simultaneously;
Described OAM sends the message of closing the descending sub frame power amplifier to remote radio unit (RRU) RRU via TCM;
Described OAM receives the described response message of closing the message of descending sub frame power amplifier that comes from described RRU via described TCM, wherein, carry the subframe bitmap after renewal in described response message;
Described OAM judges whether the subframe bitmap after described renewal is consistent with the subframe bitmap of described preservation;
If consistent, described OAM sends the Indication message that stops dispatching described one or more descending sub frames to described MAC.
6. method according to claim 1, is characterized in that, after described MAC stops dispatching described one or more descending sub frame, also comprises:
Described MAC during more than or equal to described first threshold, sends the request message that reschedules described one or more descending sub frames in definite current physical piece utilance to described OAM;
Described MAC receives the response message of the request message that reschedules described one or more descending sub frames that comes from described OAM;
Described MAC reschedules described one or more descending sub frame.
7. method according to claim 6, is characterized in that, before described MAC reschedules described one or more descending sub frame, also comprises:
Described OAM sends the notification message that reschedules described one or more descending sub frames to RRU via TCM;
Described OAM receives the response message of the notification message that reschedules described one or more descending sub frames that comes from described RRU via described TCM.
8. method according to claim 1 or 5, is characterized in that, after described MAC stops dispatching described one or more descending sub frame, also comprises:
When arriving the scheduled time, described MAC receives the second notification message that comes from described OAM, and wherein, described the second notification message carries the indication information of closing power saving function;
Described MAC reschedules the current descending sub frame that stops dispatching.
9. method according to claim 8, is characterized in that, before described MAC reschedules the current descending sub frame that stops dispatching, also comprises:
Described OAM sends the notification message that reschedules the described current descending sub frame that stops dispatching to RRU via TCM;
Described OAM receives the response message of the notification message that comes from the described current descending sub frame that stops dispatching of rescheduling of described RRU via described TCM.
10. the intelligent power management system in Long Term Evolution TD SDMA access TD-LTE system, is characterized in that, described system comprises: media access control MAC;
Described MAC comprises:
The first determination module is used for determining that current physical piece utilance is less than first threshold;
The first judge module is used in definite current physical piece utilance during less than first threshold, judges whether the Physical Resource Block utilance that stops dispatching after one or more descending sub frames is less than or equal to Second Threshold;
Notification module is used for being output as when being at described judge module, and notice Operations, Administration and Maintenance subsystem OAM only carries out the retransmission process operation in next measurement period;
The second determination module, the Physical Resource Block utilance when being used for determining described next measurement period end is less than or equal to described Second Threshold;
Scheduler module is used for stopping dispatching described one or more descending sub frame.
11. system according to claim 10 is characterized in that,
Described MAC also comprises:
The first receiver module is used for receiving the first notification message that comes from described OAM, wherein, carries indication information and the described measurement period of opening power saving function in described notification message.
12. system according to claim 10 is characterized in that, described system also comprises: described OAM;
Described OAM comprises:
The second receiver module is used for receiving the descending sub frame that comes from described MAC and stops scheduling controlling message, and wherein, described descending sub frame stops carrying in scheduling controlling message the subframe message bit pattern of described MAC;
Parsing module is used for resolving described descending sub frame and stops scheduling controlling message, obtains the subframe bitmap of described MAC and preserves, and sends to described MAC the response message that described descending sub frame stops scheduling controlling message simultaneously;
The first sending module is used for sending to remote radio unit (RRU) RRU via TCM the message of closing the descending sub frame power amplifier;
The 3rd receiver module is used for receiving via described TCM the described response message of closing the message of descending sub frame power amplifier that comes from described RRU, wherein, carries the subframe bitmap after renewal in described response message;
The second judge module is used for judging whether the subframe bitmap after described renewal is consistent with the subframe bitmap of described preservation;
The second sending module is used for being output as when being at described the second judge module, sends the Indication message that stops dispatching described one or more descending sub frames to described MAC;
Described MAC also comprises:
The 3rd sending module is used for sending described descending sub frame to OAM and stops scheduling controlling message;
The 4th receiver module is used for receiving the message that stops dispatching described one or more descending sub frames that comes from described OAM.
13. system according to claim 10 is characterized in that,
Described MAC also comprises:
The 4th sending module is used in definite current physical piece utilance rescheduling the request message of described one or more descending sub frames to described OAM transmission during more than or equal to described first threshold;
The 5th receiver module is used for the response message that reception comes from the request message that reschedules described one or more descending sub frames of described OAM;
Described scheduler module, also be used for rescheduling described one or more descending sub frame;
Described OAM also comprises:
The 6th receiver module is used for receiving the request message that reschedules described one or more descending sub frames that comes from described MAC;
The 5th sending module is for send the response message of the request message that reschedules described one or more descending sub frames to described MAC.
14. according to claim 10 or 12 described systems is characterized in that,
Described MAC also comprises:
The 8th receiver module is used for receiving the second notification message that comes from described OAM when arriving the scheduled time, and wherein, described the second notification message carries the indication information of closing power saving function;
Described scheduler module also is used for rescheduling the current descending sub frame that stops dispatching;
Described OAM also comprises:
The 6th sending module is used for sending described the second notification message to described MAC.
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