CN103582088A - Base station cooperation sleep/rouse method and system - Google Patents

Abstract

The invention provides a base station cooperation sleep/rouse method. Multiple base stations provide services for cell users in a cooperation transmission manner. The sleep/rouse method includes the steps that firstly, all the base stations participating cooperation transmission send downlink channel estimation of all the base stations and/or interference and the noise level of the served users and/or power consumption parameter values of all the base stations to a central processor, wherein the downlink channel estimation comprises downlink channel characteristics from the base stations to the served users; secondly, the central processor receives the parameter information of all the base stations participating cooperation transmission, the base stations in the sleep or rouse state are determined, and notice is sent to the corresponding base stations; thirdly, the base stations which receive the notice enter sleep or rouse state according to the instruction of the notice. The invention further discloses the base station cooperation sleep/rouse system. The base station cooperation sleep/rouse method and system can give full play to potential on the energy-saving performance of the base station sleep technology.

Description

A kind of base station collaboration sleeping/waking method and system

Technical field

The application relates to the base station energy-saving technology in communication system, particularly a kind of base station collaboration sleeping/waking method and system.

Background technology

In order to meet the growing business demand of people, existing wireless communications system is towards pursuing the more future development of High Data Rate.Yet the communication system of spectral efficient, when bringing high speed business, has often also been brought larger energy resource consumption.This not only can bring larger burden to current very nervous energy supply situation, also natural environment and social environment is brought to a lot of negative effects simultaneously.Therefore, from many aspects such as energy sustainable use, environmental protection and cellular system operation costs, consider, develop the energy-efficient communication technology and will become the inexorable trend of following cellular mobile communication.

Statistics shows in existing cell mobile communication systems, and base station end has consumed the energy that surpasses 80% in whole communication system.Therefore the energy consumption that, how to reduce base station end is the key issue of the energy-efficient communication system of design.In end all energy in base station consume, signal processing, circuit and refrigeration plant etc. have consumed about 60% energy, and emitted energy consumption only accounts for 40%.Take of this means that work on hand the proposes method that power minimization is design object can not reduce the total power consumption of base station end effectively.By comparison, base station dormancy is a kind of generally acknowledged effective power-economizing method.After a base station enters resting state, all devices of whole base station is all in low energy consumption state, and the user in the cellular cell that it covers need to provide service by the in running order base station being close to (work base station).Due to the increase of signal transmission distance, in order to guarantee user's quality of service requirement, contiguous work base station need to consume larger emitted energy, even there will be the situation of service disruption.

In work on hand, contiguous work base station adopts the mode of non-cooperation to serve the user in dormant cell.Therefore because non-cooperation transmission has lower spectrum efficiency, while only having traffic carrying capacity when community very low, base station just can enter resting state.Secondly, under non-cooperation transmission, when each user only accesses ，Dang base station, a base station and proceeds to resting state by operating state, certainly will will cause online user's service disruption.The traffic carrying capacity of last ，Dang community increases in the time of cannot meeting down to contiguous work base station, and contiguous work base station need to be waken dormancy base station up.Because non-cooperative system can cause the wakeup time of growing conventionally, this has increased the possibility of user's service disruption.Above-mentioned factor has limited the application in real system of base station dormant technology based on non-cooperation transmission that work on hand proposes greatly, thereby has limited base station dormant technology to reducing the effect of cell mobile communication systems energy consumption.

Summary of the invention

The application provides a kind of base station collaboration sleeping/waking method, can give full play to the performance potential of base station dormant technology aspect energy-conservation.

A sleeping/waking method, a plurality of base stations adopt cooperation transmission modes to provide service for community user, and described sleeping/waking method comprises:

Down channel is separately estimated in a, each base station that participates in cooperation transmission and/or serviced user's interference and the power consumption parameter value of noise level and/or each base station send to center processor; Described down channel estimates to comprise that base station arrives serviced user's down channel characteristic;

B, described center processor receive the parameter information of each base station that participates in cooperation transmission, determine the base station that enters dormancy or wake-up states, and notify corresponding base station;

C, receive the base station of described notice, indication as per advice enters dormancy or wake-up states.

Preferably, described center processor, according to the most effective principle of all total base station power that participates in cooperation transmission, is determined the base station that enters dormancy or wake-up states.

Preferably, the most effective principle of all total base station power of described participation cooperation transmission is: all base stations total power consumption that meet under the prerequisite of all serviced customer service demands, participates in cooperation transmission is minimum; Or described all base stations total power consumption and all serviced users' total data rate ratio is minimum; Or the ratio of the total area coverage of described all base stations total power consumption and all base stations is minimum.

Preferably, each base station obtains that self down channel is estimated and/or the mode of interference and noise level is: described each base station receives detectable signal that all serviced users send at ascending time slot and user at measured interference and the noise level of descending time slot before; Described each base station estimates that according to the detectable signal receiving self is to serviced user's up channel, and utilizes up-downgoing channel reciprocity to determine described descending channel information;

Or the mode that each base station obtains self down channel estimation, interference and noise level is: described each base station receives the channel estimating about down channel, interference and the noise level that serviced user sends at ascending time slot.

Preferably, described down channel estimates to comprise the instantaneous down channel estimation on each subcarrier; Described user's interference and noise level are described user's instantaneous disturbance and noise level;

Described determine enter the base station of resting state and the base station being waken up and to notify corresponding base station to comprise:

Calculate all total base station power when participation cooperation transmission { q when most effective _bfand { p _kfvalue, b is base station indices, f is sub-carrier indices, k is serviced user index; { q _bfin arbitrary element q _bffor the base station b that the participates in cooperation transmission operation state values on subcarrier f, value is 0 to represent dormancy, and value is that 1 representative wakes up; { p _kfin arbitrary element p _kffor the base station b that the participates in cooperation transmission transmitting power on subcarrier f;

The q that is 0 for value _bf, the corresponding subcarrier f of described center processor notice corresponding base station b arrives and advances into resting state at next ascending time slot; The q that is 1 for value _bf, the corresponding subcarrier f of described center processor notice corresponding base station arrives and advances into wake-up states at next ascending time slot, and according to corresponding transmitting power p _kfcarry out sending after signal precoding.

Preferably, the corresponding subcarrier f of described center processor informing base station b enters resting state and is: described center processor generates sleep command and also sends to corresponding base station; Described sleep command comprises: the Resource Block sign of the cell identity information of dormancy base station, the beginning of dormancy and deadline, dormancy;

Described center processor informing base station enters wake-up states: described center processor generates wake command and sends to corresponding base station; Described wake command comprises following one or more: wake up base station cell identity information, the Resource Block sign of waking up, wake base station up and opened base station service user ID, wake the amplifier working point that base station is waken the transmitting precoding of subcarrier up, waken base station up and opened base station up.

Preferably, when all subcarriers in base station all enter resting state, whole transmitting chain is closed in this base station, enters low energy consumption resting state.

Preferably, when the parton carrier wave in base station enters resting state, according to { p _kfvalue result, select than whole subcarriers power amplifier of high energy efficiency more when the wake-up states all.

9, method according to claim 6, is characterized in that, after next ascending time slot arrives, all subcarriers that participate in all base stations of cooperation transmission enter wake-up states, return to step a.

10, method according to claim 1, is characterized in that, described down channel estimates to comprise the down channel statistical information in Preset Time section on each subcarrier; Described user's interference and noise level are the interference of described user in Preset Time section and the assembly average of noise level;

Described determine enter the base station of resting state and the base station being waken up and to notify corresponding base station to comprise:

Calculate all total base station power when participation cooperation transmission when most effective

with

value, b is base station indices, k is serviced user index; in arbitrary element

for participating in the operation state values of the base station b of cooperation transmission, value is 0 to represent all subcarrier dormancy of corresponding base station, and value is 1 to represent that all subcarriers of corresponding base station wake up;

in arbitrary element

for participating in all base stations of cooperation transmission, on single sub-carrier, distribute to the average transmit power of serviced user k;

For value, be 0

center processor notice corresponding base station enters resting state in described Preset Time section subsequently; For value, be 1

center processor notice corresponding base station enters wake-up states in described Preset Time section subsequently, and carries out signal transmission.

Preferably, described in, carrying out signal is sent as: the transmitting power p that determines corresponding base station corresponding carriers according to the instantaneous characteristic of channel that enters wake-up states base station _kf, according to this transmitting power, carry out sending after signal precoding.

Preferably, described center processor notice corresponding base station enters resting state and is: described center processor generates sleep command and also sends to corresponding base station; Described sleep command comprises: the cell identity information of dormancy base station, the beginning of dormancy and deadline;

Described center processor notice corresponding base station enters wake-up states to carry out signal and sends and comprise: described center processor generates wake command and also sends to corresponding base station; Described wake command comprises: wake the cell identity information of base station up, the sign of wakeup time, wake base station up and opened base station service user ID, wake up base station transmitting precoding, wake base station up and opened the amplifier working point of base station.

Preferably, after described Preset Time section is subsequently overtime, all base stations that participate in cooperation transmission enter wake-up states, return to step a.

Preferably, in described Preset Time section subsequently, the method further comprises:

For the base station of determining in step b in wake-up states, according to the user of ascending time slot transmit obtain described in wake-up states base station the instantaneous down channel on each subcarrier estimate and/or serviced user's instantaneous disturbance and noise level;

Instantaneous down channel according to described each base station in wake-up states on each subcarrier estimates and/or serviced user's instantaneous disturbance and noise level and/or described each power consumption parameter value in wake-up states base station, determines at next ascending time slot and arrives and advance into the base station of resting state in short-term and subcarrier and base station and the subcarrier of wake-up states in short-term.

Preferably, described default power consumption parameter comprises: each equipment of base station is in the power consumption parameter of opening, resting state.

Preferably, described power consumption parameter comprises efficiency of amplitude, circuit power consumption, signal processing power consumption, refrigeration plant power consumption, power supply and charging power consumption, backbone network transmitting and receiving device power consumption.

Preferably, described center processor is the network equipment independently, or is arranged in the base station of arbitrary participation cooperation transmission, or timesharing and/or frequency-division section are arranged in the base station that respectively participates in cooperation transmission.

A sleeping/waking system, comprising: adopt cooperation transmission mode for all base stations of user's service, the center processor being connected with described all base stations;

Arbitrary described base station, for estimating the down channel of self and/or all serviced users' interference and noise level and/or power consumption parameter value send to described center processor; Also, for according to the notice of described center processor, carry out corresponding sleeping/waking operation; Described down channel estimates to comprise that base station arrives serviced user's down channel characteristic;

Described center processor, for receiving the parameter information of each base station transmission that participates in cooperation transmission, determines and enters the base station of resting state and the base station being waken up, and notify corresponding base station.

Preferably, described center processor comprises signal processing unit and Base station Interface Unit;

Described signal processing unit, the information receiving from each base station for receiving described Base station Interface Unit, and calculate all total base station power when participation cooperation transmission { q when most effective _bfand { p _kfvalue, b is base station indices, f is sub-carrier indices, k is serviced user index; { q _bfin arbitrary element q _bffor the base station b that the participates in cooperation transmission operation state values on subcarrier f, value is 0 to represent dormancy, and value is that 1 representative wakes up; { p _kfin arbitrary element p _kffor the base station b that the participates in cooperation transmission transmitting power on subcarrier f; Also for by { q _bfand { p _kfvalue result notify described Base station Interface Unit;

Described Base station Interface Unit, for being transmitted to described signal processing unit by the information that is received from each base station transmission; { the q for providing according to described signal processing unit also _bfand { p _kfvalue result, notice q _bfvalue is that 0 corresponding base station b arrives and advances into resting state at next ascending time slot on subcarrier f; Notice q _bfvalue is that 1 base station b arrives and advances into wake-up states at next ascending time slot on subcarrier f, and according to transmitting power p _kfcarry out sending after signal precoding; The information that described base station sends is prompting message.

Preferably, for all subcarriers, all enter the base station of resting state, close whole transmitting chain, enter low energy consumption resting state;

For parton carrier wave, enter the base station of wake-up states, according to { p _kfvalue result, select than whole subcarriers all when the wake-up states more the power amplifier of high energy efficiency carry out power amplification.

Preferably, described center processor comprises signal processing unit and Base station Interface Unit;

Described signal processing unit, the information receiving from each base station for receiving described Base station Interface Unit, and calculate all total base station power when participation cooperation transmission when most effective

with

value, b is base station indices, k is serviced user index;

in arbitrary element

for participating in the operation state values of the base station b of cooperation transmission, value is 0 to represent all carrier wave dormancy of corresponding base station, and value is 1 to represent that all carrier waves of corresponding base station wake up; in arbitrary element for all base stations of participating in cooperation transmission average transmit power on single sub-carrier; Also for inciting somebody to action value result notify described Base station Interface Unit;

Described Base station Interface Unit, for being transmitted to described signal processing unit by the information that is received from each base station transmission; Also for providing according to described signal processing unit

value result, notice

value is that 0 corresponding base station b enters resting state in Preset Time section subsequently; Notice

value is that 1 base station b enters wake-up states in Preset Time section subsequently, and carries out signal transmission; The information that described base station sends is the statistical information in Preset Time section.

Preferably, in described Preset Time section subsequently,

Described signal processing unit, is further used for receiving described Base station Interface Unit and forwards the instantaneous down channel estimation of determining the base station transmission in wake-up states in described Preset Time section, serviced user's business demand, the power consumption parameter value of serviced user's instantaneous disturbance and noise level, base station self; Also for according to determining in described Preset Time section in the most effective principle of all total base station power of wake-up states, determine at next ascending time slot and arrive and advance into base station and subcarrier and the base station being waken up and the subcarrier of resting state in short-term, and notify described Base station Interface Unit;

Described Base station Interface Unit, for being received from described Preset Time section instantaneous down channel estimation that the base station determined in wake-up states sends, serviced user's business demand, the power consumption parameter value of serviced user's instantaneous disturbance and noise level, base station self is transmitted to described signal processing unit; Also for what notify according to described signal processing unit, at next ascending time slot, arrive and advance into base station and subcarrier and the base station being waken up and the subcarrier of resting state in short-term, notice corresponding base station arrives and advances into dormancy or wake-up states at next ascending time slot on corresponding subcarrier.

Preferably, described center processor is the autonomous device in network, or described center processor is arranged in the arbitrary base station that participates in cooperation transmission, or described center processor is arranged in participation cooperation transmission and each base station in wake-up states in the mode of timesharing and/or frequency-division section.

Preferably, when described center processor is arranged in while participating in cooperation transmission and each base station in wake-up states in the mode of timesharing and/or frequency-division section, described center processor, when informing base station enters resting state or is waken up, further notifies each in wake-up states base station, for the time as center processor and frequency range, to identify.

As seen from the above technical solution, in the application, a plurality of base stations adopt cooperation transmission modes to provide service for community user, and the various features information of comprehensive all participation cooperation transmission base station, according to the principle that participates in all most effectiveization of total base station power of cooperation transmission, determine the base station that enters dormancy or wake-up states.The state of comprehensive so a plurality of base stations is determined dormancy or is waken the mode of base station up, can more reasonably determine the base station that enters dormancy or wake-up states, avoid the customer service that causes in sleep procedure to interrupt, give full play to the performance potential of base station dormant technology aspect energy-conservation.

Accompanying drawing explanation

Fig. 1 is the concrete structure figure of sleeping/waking system in the application;

Fig. 2 is the system environments schematic diagram in the embodiment of the present application;

Fig. 3 is the particular flow sheet of sleeping/waking method in short-term in the embodiment of the present application one;

Fig. 4 is the concrete structure figure of sleeping/waking system in the embodiment of the present application;

The particular flow sheet of sleeping/waking method when Fig. 5 is long in the embodiment of the present application two.

Embodiment

For making the application's object, technological means and advantage clearer, below in conjunction with accompanying drawing, the application is described in further details.

The application's basic thought is: the information of a plurality of base stations of comprehensive reference, determine the base station enter dormancy or wake-up states, the problems such as customer service interruption that cause when avoiding considering that single base station is determined separately.

Wherein, introduce center processor in system, for concentrating the parameter information of each cooperative base station, synthetic determination enters the base station of dormancy or wake-up states.Concrete the application's base station collaboration sleeping/waking method comprises: a plurality of base stations adopt cooperation transmission modes to provide service for community user; Down channel is separately estimated in each base station that participates in cooperation transmission and/or all serviced users' interference and the power consumption parameter value of noise level and/or base station send to center processor; The parameter information that each base station that center processor receives sends, determines the base station that enters dormancy or wake-up states, and notifies corresponding base station; After the notice of base station receiving center processor, indication as per advice enters dormancy or wake-up states.Down channel that wherein base station obtains estimates to comprise that base station arrives serviced user's down channel characteristic, and, preferably, determining while entering the base station of dormancy or wake-up states, according to the principle that participates in all most effectiveization of total base station power of cooperation transmission, carry out.

Correspondingly, the application also provides sleeping/waking system, can be for implementing the sleeping/waking method in above-mentioned the application.The structure of concrete this sleeping/waking system as shown in Figure 2, comprising: adopt cooperation transmission mode for all base stations of user's service, the center processor being connected with described all base stations.

Wherein, each base station is for estimating down channel separately and/or all serviced users' interference and the power consumption parameter value of noise level and/or base station self send to center processor; Also, for according to the notice of center processor, carry out corresponding sleeping/waking operation; Wherein, down channel estimates to comprise that base station arrives serviced user's down channel characteristic.

Center processor, the parameter information sending according to each base station that participates in cooperation transmission, determines and enters the base station of resting state and the base station being waken up, and notify corresponding base station.Wherein, preferably, determining while entering the base station of dormancy or wake-up states, according to the principle that participates in all most effectiveization of total base station power of cooperation transmission, carry out.

The principle of all most effectiveization of total base station power of above-mentioned participation cooperation transmission can be embodied as the Specific Principles of multiple evaluation power efficiency when specific implementation.For example, under the prerequisite that meets all serviced customer service demands, participate in all base stations total power consumption minimization principle of cooperation transmission, like this, can, on the basis of basic service quality that guarantees serviced user, reduce the consumption of gross power as far as possible; Or, can be also all base stations total power consumption and all serviced users' total data rate ratio minimization principle, minimum thereby the needed energy of bonding bit consumes; Or, can be also all base stations total power consumption and total area coverage ratio minimum principle, thereby weigh the efficiency of base station power from the angle of coverage.

In addition, when determining the base station of sleeping/waking state, can be according to the current instantaneous characteristic of channel in a plurality of base stations that participate in cooperation transmission, serviced user's short time service feature, thus determine the sleeping/waking mechanism within the short period; At this in short-term in mechanism, the subcarrier of base station of can take is determined sleeping/waking state as unit.Or, can also be according to the statistical channel characteristic of a plurality of base stations within the long period, serviced user's the long-time service feature that participate in cooperation transmission, thus determine the sleeping/waking mechanism within the long period; When this is long in mechanism, take base station and determine sleeping/waking state as unit.These two kinds of mechanism can be moved independently of each other, also can be in conjunction with operation.

Specific implementation below by specific embodiment explanation the application's sleeping/waking method and system configuration, first, consider how the sleeping/waking state of base station is introduced in the calculating of total base station power efficiency, thereby according to the highest principle of overall power efficiency, determine the base station of sleeping/waking.

As shown in Figure 1, three cooperative base station are connected with center processor by backbone network in the system environments supposition of the embodiment of the present application, and the user in common Wei Sange community (or sector) provides service.Suppose that each community adopts OFDMA mode to serve multi-user, three users of common service in same running time-frequency resource Shang Sange community; Certainly, for the mode of other TDMA and SDMA, also can carry out identical processing.

Suppose that base station b has N _broot antenna, each user has an antenna, and being located at the down channel between base station b and user k on f subcarrier can be expressed as

its dimension is N _b* 1, α wherein _kbfthe large scale channel coefficients being determined by customer location,

it is small scale channel coefficients.All cooperative base station can be expressed as to the overall down channel of user k:

its dimension is

b=1 wherein, 2,3, k=1,2,3.For convenience of utilizing concrete formula to be described below, suppose that cooperative base station adopts linear predictive coding here, the precoding vector of establishing user k is

w wherein _kbfbe the precoding vector of the user k that base station b is corresponding, the down receiving signal of user k can be expressed as:

$y_{\mathrm{kf}}=h_{\mathrm{kf}}^H{w}_{\mathrm{kf}}{x}_{\mathrm{kf}}+{\mathrm{\Σ}}_{j\≠k}{h}_{\mathrm{kf}}^H{w}_{\mathrm{jf}}{x}_{\mathrm{jf}}+z_{\mathrm{kf}},k=\mathrm{1,2,3}---\left(1\right)$

X wherein _kfand x _jfthe data that send to respectively user k and user j, w _jfthe precoding vector of user j, z _kfbe the receiver white Gauss noise of user k, its average is zero, and variance is σ ².

Equally, for ease of utilizing concrete formula to be described below, supposition here adopts conventional ZF (Zero-forcing, ZF) linear predictive coding, but the application is applicable to any type of linearity and nonlinear precoding.

Overall down channel h by all base stations of aforementioned all participation cooperation transmission _kfdefinition global channel matrix H _f=[h _1f, h _2f, h _3f], its dimension is

for the subcarrier of resting state, its corresponding precoding vector value should be 0, not transmitted signal.Therefore, can when calculating precoding vector, introduce the sleeping/waking state parameter of base station carrier.

Particularly, in the present embodiment, for introducing the sleeping/waking state of base station carrier, define q _bf{ 0,1} characterizes the operating state of base station b on f subcarrier, q to ∈ _bf=0 represent base station b on f subcarrier in resting state, q _bf=1 expression base station b in wake-up states, when determining precoding vector, utilizes Q on f subcarrier _fh _freplace H _fcarry out, like this, just can guarantee that precoding vector corresponding to subcarrier in resting state is 0, precoding vector corresponding to subcarrier in wake-up states is according to H _fdefinite precoding vector.Wherein,

for block diagonal matrix, for N _b* N _bdimension unit matrix.Specific to the ZF precoding adopting in the present embodiment, can be expressed as:

$W_f=[w_{1f},w_{2f},w_{3f}]={\left({\left(Q_f{H}_f\right)}^H\right)}^{+}{P}_f---\left(2\right)$

Wherein () ⁺the pseudo-inverse operation of representing matrix, P _f3 * 3 dimension diagonal matrix that mean power division, on its diagonal, k element is

According to (1) and (2), can obtain reception Signal to Interference plus Noise Ratio and the Ke Da data transfer rate of user k on f subcarrier as follows:

${\mathrm{SNR}}_{\mathrm{kf}}=\frac{p_{\mathrm{kf}}}{{\mathrm{\σ}}^2},$ $R_{\mathrm{kf}}=\log (1+\frac{p_{\mathrm{kf}}}{{\mathrm{\σ}}^2})---\left(3\right)$

Power division p wherein _kfneed to meet following power constraint:

$P_{\mathrm{bf}}^{\mathrm{tx}}={\mathrm{\Σ}}_{k=1}^3{p}_{\mathrm{kf}}{\left|\right|w_{\mathrm{kbf}}\left|\right|}^2\≤P_{\mathrm{bf}}^{\mathrm{tx},\max }---\left(4\right)$

Wherein

the transmitting power of base station b on f subcarrier,

represent the maximum transmit power limit (real system at frequency domain conventionally consider constant power transmitting, so the total power constraint of each base station can be expressed as list carrier power constraint) of base station b on f subcarrier.

Those skilled in the art are known, the calculating of the overall power efficiency of all base stations necessarily comprises the calculating of the transmitting power of each base station on each carrier wave, as above formula (4) is depicted as the calculating of single base station transmitting power, wherein relate to the precoding vector of this base station on each subcarrier, and this precoding vector is as previously mentioned according to Q _fdetermine, therefore in the computational process of all total base station power efficiency, necessarily relate to the information of the sleeping/waking state that represents base station carrier.In addition, the total power consumption of base station b

except with transmitting power outside relevant, also depend on the power consumption parameter of each equipment of base station self when opening, long-term resting state and short-term sleep state, comprise efficiency of amplitude η _b, the circuit power consumption under unlatching and resting state

signal is processed power consumption

refrigeration plant power consumption

power supply and charging power consumption backbone network transmitting and receiving device power consumption

deng.Select which base station carry out dormancy and wake up the above-mentioned every power consumption parameter of impact.

Content based on above-mentioned analysis, is described in detail the specific implementation of sleeping/waking method in the embodiment of the present application and system configuration below.Wherein, still with the system environments shown in Fig. 2 the TDD system of take, describe as example.Fig. 3 is the method flow diagram of sleeping/waking mechanism in short-term in the embodiment of the present application one.As shown in Figure 3, this flow process comprises:

Step 301, three cooperative base station receive respectively detection (Sounding) signal and the service request that all serviced users send in ascending time slot, and serviced user's interference and noise level.

Step 302, the detectable signal that three cooperative base station utilizations receive is estimated all serviced users' up channel, and then utilizes up-downgoing channel reciprocity to obtain down channel characteristic.

It in above-mentioned steps 301～302, is the mode that in TDD system, cooperative base station is obtained down channel characteristic.For FDD system, because up-downgoing channel does not have reciprocity, therefore conventionally by user according to the Signal estimation down channel characteristic of descending time slot, then at ascending time slot, this characteristic of channel is fed back to base station.Therefore, for FDD system, base station obtains down channel characteristic, user's interference and the mode of noise level can be: the mode that each base station obtains self down channel estimation, interference and noise level is: described each base station receives the channel estimating about down channel, interference and the noise level that all serviced users send at ascending time slot.

In addition, interference and noise level can be realized by the energy (RSRP) of cell reference signals or the quality (RSRQ) of cell reference signals of reporting at present.Certainly, also can adopt other modes to obtain, the application is not construed as limiting this.

Certainly, also can be according to real system and corresponding configuration, adopt various available modes to obtain the down channel estimation of base station and user's interference and noise level, above are only and provide possible implementation, the mode the application who adopts during for specific implementation is not construed as limiting.

Step 303, cooperative base station by related information transmission to center processor.

The concrete relevant information sending comprises: down channel estimation, user's service request, user's interference and noise level, antenna configuration, maximum transmission power, all power consumption parameters, comprise efficiency of amplitude η _b, the circuit power consumption under unlatching and resting state

signal is processed power consumption

refrigeration plant power consumption

power supply and charging power consumption

backbone network transmitting and receiving device power consumption deng.

Wherein, the antenna configuration of base station, maximum transmission power, all power consumption parameters, be the information that base station itself can measure.These information from base station send to center processor, and transmission can be to send according to the cycle, or meets certain gating transmit, or sends rule by center processor configuration, when meeting rule, sends.

Step 304, according to all information of collecting, center processor, according to the most effective principle of all base station powers that participates in cooperation transmission, is determined the base station and the subcarrier that in descending time slot subsequently, enter sleeping/waking state.

Specific as follows:

As previously mentioned, when calculating all base station power efficiency, relate to parameter Q _f, calculate overall power efficiency when all base stations { q when the highest _bfand { p _kfvalue, thereby determine base station and the subcarrier enter sleeping/waking state.Wherein, as previously mentioned, all total base station power efficiency can have different measurement modes, and for different modes, the concrete form of calculation of overall power efficiency also can be different.In the application, when calculating overall power efficiency, utilize Q _fh _freplace H _ffor calculating the precoding vector of all base stations on subcarrier f, thereby introduce sleeping/waking state.In addition, other belong to those skilled in the art's common practise about the concrete calculating of overall power efficiency, just repeat no more here.

Below, only take meet under the prerequisite of all serviced customer service demands, all base stations total power consumption minimization principle describes as example.Center processor can be that design criterion is optimized base station dormancy and arouse machine processed according to minimizing three cooperative base station total power consumptions, and guarantees that user's data rate is not less than user's minimum data rate requirement, solves following problem:

$\underset{\left\{q_{\mathrm{bf}}\right\},\left\{p_{\mathrm{kf}}\right\}}{\min }{\mathrm{\Σ}}_{b=1}^3{P}_b^{\mathrm{total}}$

s.t.R _kf≥ξ _kf，k=1，2，3 (5)

$P_{\mathrm{bf}}^{\mathrm{tx}}\≤P_{\mathrm{bf}}^{\mathrm{tx},\max }$

ξ wherein _kfrepresent the data transfer rate demand of user k on f subcarrier.

Solving of formula (5) is about base station operating state { q _bfand power division { p _kfcombined optimization problem, q wherein _bffor binary variable, when variable number is less, we can adopt the mode of traversal search to solve, and can adopt the effective low-complexity methods such as greedy search to solve when variable number is more; As given { q _bftime, for power division { p _kfoptimization problem be a protruding problem, can adopt some existing protruding optimization methods to solve, such as interior point send out, gradient search procedure etc.

According to upper type, center processor can solve base station operating state and the power division on all subcarriers.If

with

base station operating state and power distribution result on f the subcarrier obtaining for Solve problems (5), will

with

substitution (2) can obtain the ZF precoding under current base station operating state, is designated as

Certainly, user's business demand except can be as mentioned above for data rate requires, can also be other business demands such as Signal to Interference plus Noise Ratio, type of service demand, quality of service requirement, time delay demand.

Step 305, center processor notifies corresponding base station and subcarrier to enter sleeping/waking state, and corresponding base station carries out corresponding operating according to the indication of center processor at ensuing descending time slot.

If calculated in step 304

center processor enters short-term resting state by backbone network informing base station b f subcarrier is enterprising; Otherwise center processor enters short-term wake-up states by backbone network informing base station b f subcarrier is enterprising, and will launch precoding

the part that middle base station b is corresponding, user and the business demand thereof that need to serve send to base station b.

The concrete mode of center processor informing base station can be: center processor generates sleep command or wake command, and the sleep command of generation or wake command are sent to corresponding base station.Wherein, sleep command can comprise: the Resource Block sign of the cell identity information of dormancy base station, the beginning of dormancy and deadline, dormancy; Wake command comprises following one or more: wake up base station cell identity information, the Resource Block sign of waking up, wake base station up and opened base station service user ID, wake the amplifier working point that base station is waken the transmitting precoding of subcarrier up, waken base station up and opened base station up, can further include and wake patient time up.

If base station b is in resting state on all subcarriers, base station b can short-term close whole transmitting chain, enters low energy consumption resting state.If base station b need to be operated in wake-up states on parton carrier wave, the service-user sign that base station b sends according to center processor and business demand are to core network requests data; After obtaining downlink data, base station b selects suitable high energy efficiency power amplifier, the index signal of sending according to center processor according to the size of transmitting power

on the subcarrier of appointment, adopt pre-coding matrix

carry out signal transmitting.Wake-up states described in the application refers to need the subcarrier in opening or the base station of transmitted signal, not merely refers to the subcarrier or the base station that from resting state, are waken up.

Here, for high energy efficiency power amplifier, carry out some explanation.The efficiency of power amplifier refers to the ratio of power output and input power, and conventionally, power output is less, and the efficiency of power amplifier is higher; Therefore, when according to the application's mode, certain base station portion subcarrier is in resting state, parton carrier wave is when wake-up states, total transmitting power of whole base station reduces, can adopt than the equal power amplifier of high energy efficiency more when the wake-up states of all subcarriers, thereby reach further energy-conservation object.

Step 306, after descending time slot finishes, at ascending time slot subsequently, all cooperative base station enter short-term wake-up states, repeating step 301～305.

So far, the method flow in the present embodiment finishes.

Fig. 4 is the concrete structure figure of sleeping/waking system in the present embodiment, can be for implementing the method flow of above-described embodiment one.As shown in Figure 4, the system configuration shown in this system and Fig. 1 is distinguished and is, center processing implement body comprises: signal processing unit and Base station Interface Unit.

Wherein, signal processing unit, the information receiving from each base station for receiving Base station Interface Unit, and calculate all total base station power when participation cooperation transmission { q when most effective _bfand { p _kfvalue; Wherein, when calculating all total base station power efficiency, utilize Q _fh _freplace H _ffor calculating the precoding vector of all base stations on subcarrier f; Also for by { q _bfand { p _kfvalue result send to Base station Interface Unit;

Base station Interface Unit, for being transmitted to signal processing unit by the information that is received from each base station transmission; { the q for providing according to signal processing unit also _bfand { p _kfvalue result, notice q _bfvalue is that 0 corresponding base station b arrives and advances into resting state at next ascending time slot on subcarrier f; Notice q _bfvalue is that 1 base station b arrives and advances into wake-up states at next ascending time slot on subcarrier f, and according to transmitting power p _kfcarry out sending after signal precoding; The information that wherein base station sends is prompting message.

The method flow diagram of sleeping/waking mechanism when Fig. 5 is long in the embodiment of the present application two.As shown in Figure 5, this flow process comprises:

Step 501, three cooperative base station obtain the down channel statistical information of (comprising large scale and small scale channel information) by up channel being carried out to the modes such as long-time statistical or user feedback.

Step 502, all cooperative base station transfer to center processor by relevant information by backbone network.

The concrete relevant information sending comprises: down channel statistical information, cell long-term service feature, antenna configuration, maximum transmission power, all power consumption parameters, comprise efficiency of amplitude η _b, the circuit power consumption under unlatching and resting state signal is processed power consumption

refrigeration plant power consumption

power supply and charging power consumption

backbone network transmitting and receiving device power consumption

deng.

Step 503, according to all information of collecting, center processor is according to the most effective principle of all base station powers that participates in cooperation transmission, determines in preset time subsequently in section that (for example take hour be unit) enters the base station of sleeping/waking state.

Specific as follows:

Center processor can according to embodiment mono-step 304 in similar mode, according to the most effective principle of all base station powers that participates in cooperation transmission, determine the base station that enters sleeping/waking state.Just, in computational process, each physical quantity relating to is long statistical information.Wherein, when long in sleeping/waking mechanism, the subcarrier of no longer take is determined sleeping/waking state as unit, but take base station, determine sleeping/waking state as unit, determine that after dormancy, all subcarriers of corresponding base station are all in resting state, therefore, when introducing sleeping/waking state

thereby the sleeping/waking state that all subcarriers that guarantee same base station are consistent.

From the dormancy of short-term base station and wake up different, here definition

for long-term base station dormancy and arouse machine processed and average power allocation, by (4), can obtain average transmit power and the average data rate of base station b on single carrier wave and be:

${\stackrel{\‾}{P}}_{\mathrm{bf}}^{\mathrm{tx}}={\stackrel{\‾}{p}}_k{\mathrm{\Σ}}_{k=1}^{3}E\left\{{\left|\right|w_{\mathrm{kdf}}\left|\right|}^2\right\},$ ${\stackrel{\‾}{R}}_{\mathrm{kf}}=\log (1+\frac{{\stackrel{\‾}{p}}_k}{{\mathrm{\σ}}^2})---\left(6\right)$

Wherein, formula in (6) needs precoding vector to get statistical average, again according to precoding vector in formula (2) and Q _fh _frelation known, in computing formula (6) statistical average of precoding vector be according to all base stations to all serviced users the down channel H on arbitrary subcarrier f _fstatistical information (because the value of Q is uncorrelated with subcarrier, therefore not the needing to consider Q when considering statistical information) of carrying out, namely utilize down channel statistical information that in step 501, each cooperative base station is obtained to carry out.That is to say, when calculating all base stations total power consumption, utilize QH _freplace H _ffor calculating the precoding vector of all base stations on any subcarrier, and utilize H _fstatistical information calculate the average transmit power of described all base stations.And about how to determine H according to the down channel statistical information of each cooperative base station _fstatistical information belong to the common practise of this area, just repeat no more here.

Still take meet under the prerequisite of all serviced customer service demands, all base stations total power consumption minimization principle is specifically described as example.Can be that design criterion is optimized base station dormancy and arouse machine processed according to minimizing three cooperative base station overall average power consumptions, and guarantee that serviced user's data rate meets minimum speed limit requirement, solves following problem:

$\underset{\left\{{\stackrel{\‾}{q}}_b\right\},\left\{{\stackrel{\‾}{p}}_k\right\}}{\min }{\mathrm{\Σ}}_{b=1}^3{\stackrel{\‾}{P}}_b^{\mathrm{total}}$

$s.t.{L\stackrel{\‾}{R}}_{\mathrm{kf}}\≥{\stackrel{\‾}{\mathrm{\ξ}}}_k,k=\mathrm{1,2,3}---\left(7\right)$

${\stackrel{\‾}{P}}_{\mathrm{bf}}^{\mathrm{tx}}\≤{\stackrel{\‾}{P}}_{\mathrm{bf}}^{\mathrm{tx},\max }$

Wherein

represent the average data rate demand of community k in preset time section, total subcarrier number that L is system,

represent the maximum average transmit power constraint of single sub-carrier.Due in problem (7) long term average power, in order to guarantee that the single base station power constraint in actual transmissions is met (or being met with certain probability),

value can be less than

Solving of formula (7) is about base station operating state

and power division

combined optimization problem, wherein

for binary variable, when variable number is less, we can adopt the mode of traversal search to solve, and can adopt the effective low-complexity methods such as greedy search to solve when variable number is more; When given time, for power division

optimization problem be a protruding problem, can adopt some existing protruding optimization methods to solve, such as interior point send out, gradient search procedure etc.

According to upper type, center processor can be according to the base station operating state of the long-term business Feature-solving high energy efficiency of section Nei Sange preset time community

Certainly, user's business demand except can be as mentioned above for data rate requires, can also be other business demands such as Signal to Interference plus Noise Ratio, type of service demand, quality of service requirement, time delay demand.

Step 504, center processor notifies corresponding base station to enter sleeping/waking state, and corresponding base station carries out corresponding operating according to the indication of center processor in Preset Time section subsequently.

If calculated in step 503

center processor enters resting state by backbone network informing base station b within the given time period; Otherwise center processor enters wake-up states by backbone network informing base station b within the given time period.Wherein, in the base station of wake-up states, can determine according to instantaneous channel information the transmitting power p of corresponding base station corresponding carriers _kf, according to this transmitting power, carry out sending after signal precoding.The mode of concrete definite transmitting power can be determined according to the base station of existing cooperation transmission the mode of transmitting power, or, as adopted the mode of determining transmitting power in previous embodiment one in subsequent step 504a.

The concrete mode of center processor informing base station can be: center processor generates sleep command or wake command, and the sleep command of generation or wake command are sent to corresponding base station.Wherein, sleep command comprises: the cell identity information of dormancy base station, the beginning of dormancy and deadline; Wake command comprises following one or more: wake the cell identity information of base station up, the sign of wakeup time, wake base station up and opened base station service user ID, wake the transmitting precoding of base station, the amplifier working point of waking base station up and having opened base station up.

Step 505, after the Preset Time section subsequently finishes, all cooperative base station enter short-term wake-up states, repeating step 501～504.

So far, in the present embodiment, basic sleeping/waking method flow process finishes.

Can be identical with the system configuration of Fig. 4 for the system configuration of enforcement above-described embodiment two methods, just in center processor, the concrete function of two unit is different.

Wherein, signal processing unit, the information receiving from each base station for receiving Base station Interface Unit, and calculate all total base station power when participation cooperation transmission when most effective with

value; Wherein, when calculating all base stations total power consumption, utilize QH _freplace H _ffor calculate all base stations to all serviced users the precoding vector on subcarrier f, and utilize H _fstatistical information calculate the average transmit power of all base stations; M is serviced user's sum, and P is for participating in the total number of base of cooperation transmission; Also for inciting somebody to action

value result informing base station interface unit;

Base station Interface Unit, for being transmitted to signal processing unit by the information that is received from each base station transmission; Also for providing according to signal processing unit

with

value result, notice

value is that 0 corresponding base station b enters resting state in Preset Time section subsequently; Notice

value is that 1 base station b enters wake-up states in Preset Time section subsequently, and carries out signal transmission; The information that base station sends is the statistical information in Preset Time section.

Further, can also be in conjunction with the embodiments on the basis of embodiment bis-mechanism of sleeping/waking in short-term in one.Particularly, can between step 504 and step 505, further comprise:

Step 504a, in Preset Time section subsequently, for the base station of notice in wake-up states in step 504, carries out the method flow of embodiment mono-.

After determining long-term dormancy and waking base station up, waking base station up can, further according to the short term variations of traffic carrying capacity, adopt the base station dormancy of aforementioned short-term and arouse machine processed to improve efficiency and calculate transmitting precoding and carry out signal transmitting.Concrete for example, sleeping/waking in short-term within this time period (take hour be unit) mechanism, completely according to the method flow of embodiment mono-, just wherein only for the base station of notice in wake-up states in step 504, participate in sleeping/waking mechanism, for the base station of notice in resting state in step 504, do not participate in sleeping/waking mechanism in short-term, when calculating all total base station power efficiency, directly its down channel is estimated to set to 0.

In the system configuration shown in Fig. 4, in described Preset Time section subsequently, signal processing unit, is further used for receiving Base station Interface Unit and forwards the instantaneous down channel estimation of determining the base station transmission in wake-up states in described Preset Time section, serviced user's business demand, the power consumption parameter value of serviced user's instantaneous disturbance and noise level, base station self; Also for according to determining in Preset Time section in the most effective principle of all total base station power of wake-up states, determine at next ascending time slot and arrive and advance into base station and subcarrier and the base station being waken up and the subcarrier of resting state in short-term, and notify described Base station Interface Unit;

In Preset Time section subsequently, Base station Interface Unit is used for the instantaneous down channel estimation that is received from the base station transmission of determining in wake-up states in Preset Time section, serviced user's business demand, the power consumption parameter value of serviced user's instantaneous disturbance and noise level, base station self is transmitted to signal processing unit; Also for what notify according to signal processing unit, at next ascending time slot, arrive and advance into base station and subcarrier and the base station being waken up and the subcarrier of resting state in short-term, notice corresponding base station arrives and advances into dormancy or wake-up states at next ascending time slot on corresponding subcarrier.

In addition, center processor in above-mentioned the application can be connected with base station by backbone network, this center processor can be the separate network equipment that is different from base station, and the signal processing tasks of all base stations of being responsible for being attached thereto is determined the sleeping/waking state of each base station.

Center processor can also be arranged in arbitrary base station, for example, be arranged in a certain base station with stronger signal handling capacity, be responsible for to process the signal processing tasks of self and all the other all base stations of being attached thereto, determines the sleeping/waking state of each base station.

Center processor can also timesharing and/or the mode of frequency-division section be arranged in the base station that each participates in cooperation transmission, timesharing and/or frequency-division section ground is common is responsible for processing the signal processing tasks of self and all the other all base stations of being attached thereto, determines the sleeping/waking state of each base station.In this case, conventionally can, when notifying each base station sleeping/waking state, notify each to open time and frequency range sign that signal processing tasks is responsible in base station.

The above-mentioned specific implementation that is the application's sleeping/waking method and system.Technical scheme from above-mentioned the application, by a plurality of base station collaborations, provide service for user, and the characteristic information of comprehensive all cooperative base station and user's business information, determine the base station that enters sleeping/waking state, thereby can more reasonably determine the base station that enters dormancy or wake-up states, avoid the customer service that causes in sleep procedure to interrupt, give full play to the performance potential of base station dormant technology aspect energy-conservation.

The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of making, be equal to replacement, improvement etc., within all should being included in the scope of protection of the invention.

Claims (24)

1. a base station collaboration sleeping/waking method, is characterized in that, a plurality of base stations adopt cooperation transmission modes to provide service for community user, and described sleeping/waking method comprises:

Down channel is separately estimated in a, each base station that participates in cooperation transmission and/or serviced user's interference and the power consumption parameter value of noise level and/or each base station send to center processor; Described down channel estimates to comprise that base station arrives serviced user's down channel characteristic;

B, described center processor receive the parameter information of each base station that participates in cooperation transmission, determine the base station that enters dormancy or wake-up states, and notify corresponding base station;

C, receive the base station of described notice, indication as per advice enters dormancy or wake-up states.

2. method according to claim 1, is characterized in that, described center processor, according to the most effective principle of all total base station power that participates in cooperation transmission, is determined the base station that enters dormancy or wake-up states.

3. method according to claim 2, is characterized in that, the most effective principle of all total base station power of described participation cooperation transmission is: all base stations total power consumption that meet under the prerequisite of all serviced customer service demands, participates in cooperation transmission is minimum; Or described all base stations total power consumption and all serviced users' total data rate ratio is minimum; Or the ratio of the total area coverage of described all base stations total power consumption and all base stations is minimum.

4. method according to claim 1, it is characterized in that, each base station obtains that self down channel is estimated and/or the mode of interference and noise level is: described each base station receives detectable signal that all serviced users send at ascending time slot and user at measured interference and the noise level of descending time slot before; Described each base station estimates that according to the detectable signal receiving self is to serviced user's up channel, and utilizes up-downgoing channel reciprocity to determine described descending channel information;

Or the mode that each base station obtains self down channel estimation, interference and noise level is: described each base station receives the channel estimating about down channel, interference and the noise level that serviced user sends at ascending time slot.

5. method according to claim 1, is characterized in that, described down channel estimates to comprise the instantaneous down channel estimation on each subcarrier; Described user's interference and noise level are described user's instantaneous disturbance and noise level;

Described determine enter the base station of resting state and the base station being waken up and to notify corresponding base station to comprise:

Calculate all total base station power when participation cooperation transmission { q when most effective _bfand { p _kfvalue, b is base station indices, f is sub-carrier indices, k is serviced user index; { q _bfin arbitrary element q _bffor the base station b that the participates in cooperation transmission operation state values on subcarrier f, value is 0 to represent dormancy, and value is that 1 representative wakes up; { p _kfin arbitrary element p _kffor the base station b that the participates in cooperation transmission transmitting power on subcarrier f;

The q that is 0 for value _bf, the corresponding subcarrier f of described center processor notice corresponding base station b arrives and advances into resting state at next ascending time slot; The q that is 1 for value _bf, the corresponding subcarrier f of described center processor notice corresponding base station arrives and advances into wake-up states at next ascending time slot, and according to corresponding transmitting power p _kfcarry out sending after signal precoding.

6. method according to claim 1, is characterized in that, the corresponding subcarrier f of described center processor informing base station b enters resting state and is: described center processor generates sleep command and sends to corresponding base station; Described sleep command comprises: the Resource Block sign of the cell identity information of dormancy base station, the beginning of dormancy and deadline, dormancy;

Described center processor informing base station enters wake-up states: described center processor generates wake command and sends to corresponding base station; Described wake command comprises following one or more: wake up base station cell identity information, the Resource Block sign of waking up, wake base station up and opened base station service user ID, wake the amplifier working point that base station is waken the transmitting precoding of subcarrier up, waken base station up and opened base station up.

7. method according to claim 6, is characterized in that, when all subcarriers in base station all enter resting state, whole transmitting chain is closed in this base station, enters low energy consumption resting state.

8. method according to claim 6, is characterized in that, when the parton carrier wave in base station enters resting state, according to { p _kfvalue result, select than whole subcarriers power amplifier of high energy efficiency more when the wake-up states all.

9. method according to claim 6, is characterized in that, after next ascending time slot arrives, all subcarriers that participate in all base stations of cooperation transmission enter wake-up states, return to step a.

10. method according to claim 1, is characterized in that, described down channel estimates to comprise the down channel statistical information in Preset Time section on each subcarrier; Described user's interference and noise level are the interference of described user in Preset Time section and the assembly average of noise level;

Described determine enter the base station of resting state and the base station being waken up and to notify corresponding base station to comprise:

Calculate all total base station power when participation cooperation transmission when most effective

with

value, b is base station indices, k is serviced user index;

in arbitrary element

for participating in the operation state values of the base station b of cooperation transmission, value is 0 to represent all subcarrier dormancy of corresponding base station, and value is 1 to represent that all subcarriers of corresponding base station wake up;

in arbitrary element

for participating in all base stations of cooperation transmission, on single sub-carrier, distribute to the average transmit power of serviced user k;

For value, be 0

center processor notice corresponding base station enters resting state in described Preset Time section subsequently; For value, be 1

center processor notice corresponding base station enters wake-up states in described Preset Time section subsequently, and carries out signal transmission.

11. methods according to claim 10, is characterized in that, described in carry out signal and be sent as: the transmitting power p that determines corresponding base station corresponding carriers according to the instantaneous characteristic of channel that enters wake-up states base station _kf, according to this transmitting power, carry out sending after signal precoding.

12. methods according to claim 11, is characterized in that, described center processor notice corresponding base station enters resting state and is: described center processor generates sleep command and sends to corresponding base station; Described sleep command comprises: the cell identity information of dormancy base station, the beginning of dormancy and deadline;

Described center processor notice corresponding base station enters wake-up states to carry out signal and sends and comprise: described center processor generates wake command and also sends to corresponding base station; Described wake command comprises: wake the cell identity information of base station up, the sign of wakeup time, wake base station up and opened base station service user ID, wake up base station transmitting precoding, wake base station up and opened the amplifier working point of base station.

13. methods according to claim 10, is characterized in that, after described Preset Time section is subsequently overtime, all base stations that participate in cooperation transmission enter wake-up states, return to step a.

14. methods according to claim 10, is characterized in that, in described Preset Time section subsequently, the method further comprises:

For the base station of determining in step b in wake-up states, according to the user of ascending time slot transmit obtain described in wake-up states base station the instantaneous down channel on each subcarrier estimate and/or serviced user's instantaneous disturbance and noise level;

Instantaneous down channel according to described each base station in wake-up states on each subcarrier estimates and/or serviced user's instantaneous disturbance and noise level and/or described each power consumption parameter value in wake-up states base station, determines at next ascending time slot and arrives and advance into the base station of resting state in short-term and subcarrier and base station and the subcarrier of wake-up states in short-term.

15. according to arbitrary described method in claim 1 to 14, it is characterized in that, described default power consumption parameter comprises: each equipment of base station is in the power consumption parameter of opening, resting state.

16. methods according to claim 15, is characterized in that, described power consumption parameter comprises efficiency of amplitude, circuit power consumption, signal processing power consumption, refrigeration plant power consumption, power supply and charging power consumption, backbone network transmitting and receiving device power consumption.

17. according to arbitrary described method in claim 1 to 14, it is characterized in that, described center processor is the network equipment independently, or is arranged in the base station of arbitrary participation cooperation transmission, or timesharing and/or frequency-division section are arranged in the base station that respectively participates in cooperation transmission.

18. 1 kinds of base station collaboration sleeping/waking systems, is characterized in that, this system comprises: adopt cooperation transmission mode for all base stations of user's service, the center processor being connected with described all base stations;

Arbitrary described base station, for estimating the down channel of self and/or all serviced users' interference and noise level and/or power consumption parameter value send to described center processor; Also, for according to the notice of described center processor, carry out corresponding sleeping/waking operation; Described down channel estimates to comprise that base station arrives serviced user's down channel characteristic;

Described center processor, for receiving the parameter information of each base station transmission that participates in cooperation transmission, determines and enters the base station of resting state and the base station being waken up, and notify corresponding base station.

19. systems according to claim 18, is characterized in that, described center processor comprises signal processing unit and Base station Interface Unit;

Described signal processing unit, the information receiving from each base station for receiving described Base station Interface Unit, and calculate all total base station power when participation cooperation transmission { q when most effective _bfand { p _kfvalue, b is base station indices, f is sub-carrier indices, k is serviced user index; { q _bfin arbitrary element q _bffor the base station b that the participates in cooperation transmission operation state values on subcarrier f, value is 0 to represent dormancy, and value is that 1 representative wakes up; { p _kfin arbitrary element p _kffor the base station b that the participates in cooperation transmission transmitting power on subcarrier f; Also for by { q _bfand { p _kfvalue result notify described Base station Interface Unit;

Described Base station Interface Unit, for being transmitted to described signal processing unit by the information that is received from each base station transmission; { the q for providing according to described signal processing unit also _bfand { p _kfvalue result, notice q _bfvalue is that 0 corresponding base station b arrives and advances into resting state at next ascending time slot on subcarrier f; Notice q _bfvalue is that 1 base station b arrives and advances into wake-up states at next ascending time slot on subcarrier f, and according to transmitting power p _kfcarry out sending after signal precoding; The information that described base station sends is prompting message.

20. systems according to claim 19, is characterized in that, all enter the base station of resting state for all subcarriers, close whole transmitting chain, enter low energy consumption resting state;

For parton carrier wave, enter the base station of wake-up states, according to { p _kfvalue result, select than whole subcarriers all when the wake-up states more the power amplifier of high energy efficiency carry out power amplification.

21. systems according to claim 18, is characterized in that, described center processor comprises signal processing unit and Base station Interface Unit;

Described signal processing unit, the information receiving from each base station for receiving described Base station Interface Unit, and calculate all total base station power when participation cooperation transmission when most effective

with

value, b is base station indices, k is serviced user index; in arbitrary element

for participating in the operation state values of the base station b of cooperation transmission, value is 0 to represent all carrier wave dormancy of corresponding base station, and value is 1 to represent that all carrier waves of corresponding base station wake up;

in arbitrary element

for all base stations of participating in cooperation transmission average transmit power on single sub-carrier; Also for inciting somebody to action value result notify described Base station Interface Unit;

Described Base station Interface Unit, for being transmitted to described signal processing unit by the information that is received from each base station transmission; Also for providing according to described signal processing unit

value result, notice

value is that 0 corresponding base station b enters resting state in Preset Time section subsequently; Notice

value is that 1 base station b enters wake-up states in Preset Time section subsequently, and carries out signal transmission; The information that described base station sends is the statistical information in Preset Time section.

22. systems according to claim 21, is characterized in that, in described Preset Time section subsequently,

Described signal processing unit, is further used for receiving described Base station Interface Unit and forwards the instantaneous down channel estimation of determining the base station transmission in wake-up states in described Preset Time section, serviced user's business demand, the power consumption parameter value of serviced user's instantaneous disturbance and noise level, base station self; Also for according to determining in described Preset Time section in the most effective principle of all total base station power of wake-up states, determine at next ascending time slot and arrive and advance into base station and subcarrier and the base station being waken up and the subcarrier of resting state in short-term, and notify described Base station Interface Unit;

Described Base station Interface Unit, for being received from described Preset Time section instantaneous down channel estimation that the base station determined in wake-up states sends, serviced user's business demand, the power consumption parameter value of serviced user's instantaneous disturbance and noise level, base station self is transmitted to described signal processing unit; Also for what notify according to described signal processing unit, at next ascending time slot, arrive and advance into base station and subcarrier and the base station being waken up and the subcarrier of resting state in short-term, notice corresponding base station arrives and advances into dormancy or wake-up states at next ascending time slot on corresponding subcarrier.

23. according to arbitrary described system in claim 18 to 22, it is characterized in that, described center processor is the autonomous device in network, or, described center processor is arranged in the arbitrary base station that participates in cooperation transmission, or described center processor is arranged in participation cooperation transmission and each base station in wake-up states in the mode of timesharing and/or frequency-division section.

24. systems according to claim 22, it is characterized in that, when described center processor is arranged in while participating in cooperation transmission and each base station in wake-up states in the mode of timesharing and/or frequency-division section, described center processor, when informing base station enters resting state or is waken up, further notifies each in wake-up states base station, for the time as center processor and frequency range, to identify.

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