CN102281550A - configuration method of wireless communication system, base station and wireless communication system - Google Patents

configuration method of wireless communication system, base station and wireless communication system Download PDF

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Publication number
CN102281550A
CN102281550A CN201010204932XA CN201010204932A CN102281550A CN 102281550 A CN102281550 A CN 102281550A CN 201010204932X A CN201010204932X A CN 201010204932XA CN 201010204932 A CN201010204932 A CN 201010204932A CN 102281550 A CN102281550 A CN 102281550A
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base station
degree information
green
mapping
green degree
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CN201010204932XA
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CN102281550B (en
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周珏嘉
李明菊
刘柳
佘小明
陈岚
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NTT Docomo Inc
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NTT Docomo Inc
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Abstract

The present invention provides a configuration method of a wireless communication system, a base station and the wireless communication system. The method comprises the steps as follows: one or more base stations in the wireless communication system obtain the self greenness information; when a green base station is determined according to the greenness information, the greenness information are mapped to corresponding base station configuration parameters; and the wireless communication system is configured according to the mapped base station configuration parameters. The method can utilize green base stations in the wireless communication system more, so that the whole system realizes energy saving and emission reduction better.

Description

The collocation method of wireless communication system, base station and wireless communication system
Technical field
The present invention relates to wireless communication field, relate in particular to collocation method, base station and the wireless communication system of wireless communication system.
Background technology
Along with development of Communication Technique, entity in the wireless communication system (such as communication equipments such as base station, user terminals) is more and more, and the information transmitted amount is also increasing between each entity, and the energy consumption brought of the information interaction of operation of these entities itself and inter-entity also grows with each passing day so.Have data to show, the cost that operator spends on the energy consumption accounts for suitable ratio in its total operation cost.
In the total energy consumption of whole system, the ratio that accounts for the energy consumption of base station serves as big especially.With the cellular network is example, in operation stage, because lot of data must be sent by the base station, annual CO2 emissions at each user institute consumed energy correspondence can reach 9kg on the base station, and the CO2 emissions of the annual institute of each user terminal consumed energy correspondence only is 2.6kg.
In recent years, the finiteness of resource and carbon emission amount have become the emphasis that people pay close attention to the influence of environment.At present, in the wireless communication system mainly by self adaptation close the base station, close the base station idle bandwidth, closed portion antenna, reduce measures such as base station scale and interference eliminated and realize energy-saving and emission-reduction.But these measures only are the power consumptions of restriction base station, under the increasing situation of traffic carrying capacity, can't realize energy-conservationly effectively, and correspondingly the operation cost of whole system also can't be lowered.
Summary of the invention
The invention provides a kind of collocation method of wireless communication system, so that in wireless communication system, realize energy-saving and emission-reduction better.
In the collocation method of wireless communication system of the present invention, comprising:
One or more base station in this wireless communication system obtains the green degree information of self;
After determining green base station, be corresponding base station configuration parameter with described green degree information mapping according to described green degree information;
According to the base station configuration parameter after the described mapping described wireless communication system is configured.
The present invention also provides a kind of base station that can realize energy-saving and emission-reduction in the wireless communication system better.
In base station of the present invention, comprising:
Green degree acquisition module is used to obtain the green degree information of base station, place, and after determining the base station, place according to described green degree information and being green base station, the work of trigger parameter mapping block;
The parameter maps module is used for described green degree information mapping is corresponding base station configuration parameter;
The configuration Executive Module is used for according to the base station configuration parameter after the described mapping base station, place being configured.
The present invention also provides the wireless communication system that can realize energy-saving and emission-reduction better.
In a wireless communication system of the present invention, comprising:
First base station is used to obtain the green degree information of self, and determine certainly as green base station according to described green degree information after, described green degree information is sent;
Second base station is used to receive the green degree information that send described first base station, it is mapped as corresponding switch decision parameter sends to user terminal;
User terminal is used for carrying out handover configurations according to the switch decision parameter after the described mapping.
In another wireless communication system of the present invention, comprising:
First base station is used to obtain the green degree information of self, and determine certainly as green base station according to described green degree information after, described green degree information is sent;
User terminal is used to receive green degree information, and it is mapped as corresponding switch decision parameter, carries out handover configurations according to the switch decision parameter after the described mapping.
By such scheme as seen, base station provided by the invention, wireless communication system and collocation method thereof, determine green base station by obtaining green degree information, the green degree information mapping of being obtained is corresponding base station configuration parameter, and with initial base station configuration parameter adjustment for the mapping after the base station configuration parameter, carry out system configuration according to the base station configuration parameter after the mapping, thereby realize the energy-saving and emission-reduction of wireless communication system better.
Particularly, in one embodiment, switch decision parameter after the mapping is deployed to be switched user terminal, makes this user terminal be easier to cut green base station and is not easy to cut out green base station, utilizes green base station to provide the wireless access service for the user terminal in the system more.
In other embodiments, green base station disposes its transmitting power according to the power contorl parameters after shining upon, perhaps change its antenna configurations according to the antenna operation parameter after the mapping, by strengthening green signal of base station intensity, strengthen its cell coverage area, make the utilance of the green base station that the carbon emission amount is low improve, also just realized energy-saving and emission-reduction better.
Description of drawings
To make clearer above-mentioned and other feature and advantage of the present invention of those of ordinary skill in the art by describe exemplary embodiment of the present invention in detail with reference to accompanying drawing below, in the accompanying drawing:
Fig. 1 is the exemplary process diagram of the collocation method of wireless communication system among the present invention;
Fig. 2 is the exemplary block diagram of wireless communication system among the present invention;
Fig. 3 is the flow chart of the collocation method of wireless communication system in the one embodiment of the invention;
Fig. 4 is the structural representation of wireless communication system in the one embodiment of the invention;
Fig. 5 is the flow chart of the collocation method of wireless communication system among another embodiment of the present invention.
Embodiment
For making purpose of the present invention, technical scheme clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
The present invention with the carbon emission amount of base station as key factor, it is reflected into green degree information, configuration in the wireless communication system is adjusted, such as the power contorl parameters of the switch decision parameter of revising base station and user terminal, modification base station, the antenna configuration parameters of modification base station etc.Above-mentioned adjustment can make that the cell coverage area of the lower base station of carbon emission amount (also being energy-saving base station or green base station) is bigger, makes green base station can be more subscriber terminal service, thereby realizes energy-saving and emission-reduction effectively.
Fig. 1 shows the exemplary process diagram of the collocation method of wireless communication system among the present invention.Referring to Fig. 1, this method comprises:
In step 101, determine the green degree information of this base station according to the carbon emission amount of certain base station.
In step 102, determine according to green degree information whether this base station is green base station, and be corresponding base station configuration parameter described green degree information mapping, be used for adjusting the configuration of wireless communication system.
Fig. 2 shows the exemplary block diagram of wireless communication system among the present invention.Referring to Fig. 2,, newly-increased in the existing wireless communication system: green degree acquisition module 201, parameter maps module 202, configuration Executive Module 203 with lower module in order to be configured according to method shown in Figure 1.Wherein, green degree acquisition module 201 is used for determining according to the carbon emission amount of base station the green degree information of this base station correspondence, and determines green base station according to described green degree information; Parameter maps module 202 is used for green degree information mapping is corresponding base station configuration parameter; Configuration Executive Module 203 is used for being configured according to the base station configuration parameter after the mapping.Above-mentioned module can be arranged in the different entities of wireless communication system, such as: green degree acquisition module 201 is arranged on the base station of using natural energy, because such base station is likely green base station; Parameter maps module 202 can be arranged on the green base station, perhaps is arranged on ordinary base station or the user terminal; Configuration Executive Module 203 can be arranged on green base station or the user terminal.
In a specific implementation, the base station comprises:
Green degree acquisition module is used to obtain the green degree information of base station, place, and after determining the base station, place according to described green degree information and being green base station, the work of trigger parameter mapping block;
The parameter maps module is used for described green degree information mapping is corresponding base station configuration parameter;
The configuration Executive Module is used for according to the base station configuration parameter after the described mapping base station, place being configured.
Further, this base station also can comprise:
Communication module is used for the base station configuration parameter after the described mapping is sent to the base station of user terminal or neighbor cell.
When described base station configuration parameter was power contorl parameters, described configuration Executive Module was used for according to the power contorl parameters rising transmitting power after the described mapping.
When described base station configuration parameter is the antenna operation parameter, described configuration Executive Module is used for according to the antenna operation parameter after the described mapping antenna being adjusted, and carries out following one of them operation: increase the work antenna number, increase antenna height, reduce antenna elevation angle, the antenna horizontal angle is revised as energy-conservation configuration from initial configuration; Described antenna operation parameter comprises following one of them parameter: work antenna number, antenna height, antenna elevation angle, antenna horizontal angle.
Need to prove that in following part or all embodiment, green degree acquisition module can be as required or periodically obtained the green degree information of base station, place.After determining that according to green degree information the base station, place is green base station, described green degree information is mapped as corresponding base station configuration parameter, and described mapping can be by searching the parameter maps table or calculating base station configuration parameter after the mapping according to formula.Such as, according to formula C Map=C InitGd iBase station configuration parameters C after determining to shine upon MapWherein, described C InitBe initial base station configuration parameter, Gd iGreen degree information for green base station i.When described green degree information is 0, C Map=C InitWhen described green degree information is 1, C Map=C GreenWherein, described C InitBe initial base station configuration parameter, described C GreenBe energy-conservation base station configuration parameter, described C MapBe the base station configuration parameter after the mapping.Base station configuration parameter after the mapping is compared with initial configuration and will be changed, and initial configuration is provided with when the network planning.Have, mapping herein can be carried out on different network entities again, is not limited to green base station itself.Afterwards, carry out corresponding configuration or operation according to the base station configuration parameter after the mapping.
The above-mentioned base station configuration parameter of mentioning comprises: switch decision parameter, power contorl parameters, antenna operation parameter etc.Wherein, the switch decision parameter can be at least one among Ocn, Ocs, the Off; The antenna operation parameter can be at least one in work antenna number, antenna height, the angle of pitch (tilt), the horizontal angle.
From the above description as seen, the present invention determines green degree information according to the carbon emission amount of base station and when having determined that the base station is green base station, and corresponding modify base station configuration parameter enlarges the cell coverage area of this green base station.Because medium green color base of the present invention station can have bigger cell coverage area than ordinary base station, be that the lower green base station of carbon emission amount can be more subscriber terminal service, the mutual energy that consumes between the operation of base station itself and base station and the user terminal all can access largely and reduce.Certainly, under the situation of effectively energy-saving and emission-reduction, the cost of wireless communication system also can be effectively controlled among the present invention.
It may be noted that not all base station all is provided with green degree acquisition module.Green degree acquisition module is set on which base station, can supplies with intensity, natural energy deposit degree, energy consumption of base station situation, base station energy-saving attribute etc. according to natural energy and pre-determine or manually be provided with.Such as, for certain base station of using solar energy or wind energy, it is low than ordinary base station to estimate its carbon emission amount, therefore green degree acquisition module will be set thereon.And for example, the power consumption of the refrigerating system of certain base station is little, also green degree acquisition module can be set thereon.For another example, certain base station adopts energy-conservation raw material to build, and perhaps the energy-conservation ability of the digital integrated circuit on it is strong, just green degree acquisition module can be set thereon.
Therefore, according to whether being provided with green degree acquisition module, the first kind base station and the second class base station can be divided in the base station in the wireless communication system.First kind base station is provided with green degree acquisition module, is used to obtain the green degree information of this first kind base station, and determines that according to this green degree information this first kind base station is green base station.First kind base station can be green base station in some period, and some period is an ordinary base station; Can all be green base station forever also.That is to say, can tell " ordinary base station " state and " green base station " state of first kind base station according to the green degree information area.The second class base station is not provided with green degree acquisition module; In other words, the second class base station all is ordinary base station all the time, therefore there is no need to be provided with green degree acquisition module.Correspondingly, the second class base station can't provide the green degree information of self.
To specifically describe wireless communication system allocation plan of the present invention by embodiment below.
Embodiment 1: in green base station be corresponding switch decision parameter with green degree information mapping
In the present embodiment, revise the switch decision parameter, thereby realize the adjustment of cell coverage area, such as the cell coverage area that increases green base station according to green degree information.
Fig. 3 shows the flow chart of the collocation method of wireless communication system in the present embodiment.Referring to Fig. 3, this method comprises:
In step 301, determine the green degree information of this base station correspondence in advance according to the carbon emission amount of base station.
In this step, each base station itself can be determined the green degree information of self according to one or more index of the reflection carbon emission amount that sets in advance.Specifically, the index of reflection carbon emission amount can comprise: the energy-conservation ability of integrated circuit, the environmental protection degree of base station construction material etc. in the energy Source Type of base station, the refrigeration situation of base station, the base station.These above-mentioned specific targets all can influence the carbon emission amount of base station, and for example, when the energy source of base station is during such as natural energy resources such as solar energy, its carbon emission amount can reduce greatly than the carbon emission amount of common electric energy power supply; Less when the difference of the air-conditioner temperature of base station and ambient temperature, and/or the operating load of base station hour, and the carbon emission amount also can be less; And for example, when the energy-conservation ability of base station integrated circuit environmental protection degree strong or construction material was higher, the carbon emission amount also can be less.
Green degree information in the present embodiment is used to reflect the energy-conservation ability that the base station can provide for communication system, and this information can adopt percentage form or Boolean form.
When adopting the percentage form, green degree information equals to reflect the ratio of index measurement value with the maximum of this index of carbon emission amount.For example, suppose that this index is the natural energy charging current, the green degree information of t is Gd constantly t, so, Gd t=I t/ I MAX, I wherein tBe the natural energy charging current measured value of base station at moment t, I MAXMaximum charging current value for natural energy collecting equipment in the base station; Perhaps, suppose to reflect that the index of carbon emission amount is natural energy memory space, Gd so t=C t/ C MAX, C wherein tBe the natural energy store electricity value of base station at moment t, C MAXMaximum storage charge value for natural energy collecting equipment in the base station.
When adopting the Boolean form, can set in advance ratio thresholding T1, when the ratio of the index measurement value of reflection carbon emission amount and the maximum of this index is greater than or equal to this ratio thresholding T1, green degree information is 1, when the ratio of the index measurement value of reflection carbon emission amount and the maximum of this index during less than this ratio thresholding T1, green degree information is 0.Such as, work as I t/ I MAX〉=0.5 o'clock, described green degree information is defined as 1, otherwise described green degree information is defined as 0; Perhaps, work as C t/ C MAX〉=0.5 o'clock, described green degree information is defined as 1, otherwise described green degree information is defined as 0; Wherein, described I tBe the charging current of moment t, described I MAXBe the maximum charging current of the natural energy collecting equipment that is provided with on the base station, described C tBe the power storage amount of moment t, described C MAXMaximum power memory space for the natural energy collecting equipment that is provided with on the base station.
In step 302, the base station judges according to green degree information whether self is green base station, if then execution in step 303, otherwise, the configuration flow of end wireless communication system.
In this step,, judge that then this base station is green base station if the green degree information of base station is greater than or equal to the green degree thresholding T2 that sets in advance.
In step 303, green base station according to self green degree information with the switch decision parameter to the direction adjustment that is easy to cut and be difficult for cutting out green base station, obtain adjusted switch decision parameter.
In the present embodiment, the parameter maps table is set in green base station in advance, puts down in writing the corresponding relation of green degree information and switch decision parameter.Both can be linear relationship between green degree information in the parameter maps table and the switch decision parameter, for example, when green degree information was the percentage form, the switch decision parameter after the mapping equals the product of initial switch decision parameter Yu (the green degree information of 1+); Certainly, can also be non-linear relation between the switch decision parameter after green degree information and the mapping, and green degree information be big more, the switch decision parameter after the mapping is big more.It when wherein, initial switch decision parameter can be the network planning parameter that ordinary base station is provided with.
System is an example with Long Term Evolution (LTE), and controlled switch decision parameter can be the measurement relevant with neighbor cell skew Ocn, the one or more parameters with Serving cell among the measurement side-play amount Off of relevant measurement skew Ocs, incident.In present switching determination condition, Ocn is big more, and the probability that user terminal is cut into this Ocn institute respective cell is big more; Ocs is more little, and the probability that user terminal cuts out this Ocs institute respective cell is big more.Correspondingly, Ocn is more little, and the probability that user terminal is cut into this Ocn institute respective cell is more little; Ocs is big more, and the probability that user terminal cuts out this Ocs institute respective cell is more little.
Therefore, in the present embodiment, green base station is heightened Ocn1 according to green degree information, perhaps Ocs1 is turned down, the combination of perhaps above-mentioned two kinds of situations, the effect that reaches are to make when but user terminal is positioned at edge, green base station its serving BS and is not green base station the green base station of easier incision.Wherein, Ocn1 is the relevant measurement skew during as neighbor cell of the sub-district at place, green base station, and Ocs1 be that the measurement relevant with Serving cell is offset.Perhaps, turn down Ocn2 according to green degree information green base station, perhaps Ocs2 is heightened, the combination of perhaps above-mentioned two kinds of situations, the effect that reaches is to make that the serving BS of user terminal is green base station, and when self being positioned at the edge of green base station, more is difficult for cutting out green base station.Wherein, Ocn2 is the measurement relevant with neighbor cell skew, and Ocs2 is the relevant measurement skew during for Serving cell of the sub-district at place, green base station.
In step 304, green base station sends to user terminal and base station thereof in the neighbor cell with adjusted switch decision parameter.
In step 305, the stored record that user terminal in the neighbor cell and base station thereof utilize adjusted switch decision parameter update self.
Here, after the base station of neighbor cell and user terminal receive the adjusted switch decision parameter of green base station transmission, stored record is upgraded, and the numerical value of the switch decision parameter of this green base station that self is preserved replaces with the switch decision parameter after the mapping.Certainly, user terminal in the neighbor cell and base station thereof the switch decision parameter that also can not preserve green base station.Adjusted switch decision parameter can be transmitted by existing signalings such as X2, so this flow process can make full use of existing signaling.
The switch decision parameter of green base station is through after the adjustment of abovementioned steps 303, and its value towards the direction that is easy to cut and be difficult for cutting out green base station change has taken place.Like this, the to be switched user terminal switch decision parameter after according to described mapping is carried out the sub-district when switching in the neighbor cell, this user terminal increases the possibility of green base station as serving BS, and green base station is brought the zone at more users terminal place in the neighbor cell in the coverage of self into.In a sense, the cell coverage area of this green base station enlarges before adjusting to some extent.
In a concrete scene, when green base station was target BS, this green base station sent to serving BS with adjusted switch decision parameter by the X2 signaling, sends to user terminal by serving BS by the RRC signaling again.User terminal is carried out according to adjusted switch decision parameter and is switched this green base station of easier incision.
So far, finish the configuration flow of the wireless communication system in the present embodiment.
Fig. 4 shows the structural representation of wireless communication system in the present embodiment.Referring to Fig. 4, this system comprises: first base station 401, second base station 402 and user terminal 403.
Wherein, the green degree acquisition module 4011 and parameter maps module 4012 of first base station 401 in comprising earlier figures 2, also comprise communication module 4013.Specifically, green degree acquisition module 4011 is used for determining according to the carbon emission amount of base station the green degree information of this base station correspondence, judges according to this green degree information whether self is green base station, and when judging that this base station is green base station the trigger parameter mapping block; Parameter maps module 4012 is used for described green degree information mapping is corresponding switch decision parameter; Communication module 4013 be used for the mapping after the switch decision parameter send in the neighbor cell second base station and with the user terminal of this second base station as serving BS.Particularly, the switch decision parameter is towards the direction adjustment that is easy to cut and be difficult for cutting out this green base station.
Second base station 402 is positioned at the neighbor cell of first base station 401, receives the switch decision parameter after the mapping of first base station, and utilizes the stored record of the switch decision parameter update self after the mapping.
User terminal 403 be positioned at the sub-district at place, second base station and with this second base station as serving BS, this user terminal receives the switch decision parameter after the mapping of first base station, utilize the stored record of the switch decision parameter update self after shining upon, and, make that the switch decision parameter after the mapping can come into force according to the execution of the switch decision parameter after mapping switching.
From above description as seen, by in green base station, adjusting the switch decision parameter, realize the expansion of green base station range in the present embodiment to the direction that is easy to cut.So green base station can be as the serving BS of more users terminal, correspondingly, traffic carrying capacity in the ordinary base station will significantly reduce, and then the mutual energy that consumes between the operation of base station itself and base station and the user terminal all can access reduction largely in the wireless communication system.In addition, being adjusted at as the green inside of base station of target BS of switch decision parameter finished in the present embodiment, and according to existing mode adjusted switch decision parameter sent to serving BS and user terminal in the neighbor cell.Therefore, present embodiment need not existing signaling is significantly revised, and only the structure of green base station itself is slightly adjusted, and is easy to implement, and cost is lower.
That is to say, during according to green degree information mapping switch decision parameter, switch decision parameter after the mapping is the direction adjustment of cutting green base station or being not easy to cut out green base station towards being easy to, this makes that user terminal is easier and cuts green base station from other ordinary base station, perhaps more difficultly cuts out other ordinary base station from green base station.Like this, no matter under the situation of cutting or cutting out, adopt green base station all to be higher than ordinary base station for user terminal provides the probability of wireless access service.
Embodiment 2: when green base station is target BS, be corresponding switch decision parameter at serving BS with green degree information mapping
Present embodiment also is by revising the switch decision parameter according to green degree information, make when user terminal is positioned at the coverage edge of green base station, being easier to cut this green base station.As can be seen, this embodiment has realized the adjustment of cell coverage area, and the more users terminal can earlier insert green base station, so make whole system more energy-conservation.The difference of present embodiment and embodiment 1 is that the serving BS that is mapped in green base station neighbors sub-district of switch decision parameter is finished.
Fig. 5 shows the flow chart of the collocation method of wireless communication system in the present embodiment.Referring to Fig. 5, this method comprises:
In step 501, determine the green degree information of this base station in advance according to the carbon emission amount of base station.
In step 502, the base station judges according to green degree information whether self is green base station, if then execution in step 503, otherwise, the configuration flow of end wireless communication system.
Step 301 among the operation of above-mentioned two steps and the embodiment 1 and 302 identical.
In step 503, green base station sends to self green degree information the serving BS of certain user terminal in the neighbor cell.
In step 504, the serving BS of neighbor cell is the switch decision parameter with the green degree information mapping of green base station, and this switch decision parameter is towards the direction adjustment that is easy to cut and be difficult for cutting out green base station.
This step can realize the adjustment of the switch decision parameter of green base station according to the mode in embodiment 1 step 303, and different is that the entity of switch decision parameter adjustment is the serving BS of neighbor cell in this step.
In step 505, the base station of neighbor cell utilizes the stored record of the switch decision parameter update self after the mapping, and the switch decision parameter after will shining upon sends to the user terminal in this neighbor cell.
In step 506, the stored record of the switch decision parameter update after the mapping that the user terminal utilization receives self.
The mode that updated stored writes down in the operation of upgrading stored record in neighbor cell base station and the user terminal in the abovementioned steps 505 and 506 and embodiment 1 step 305 is identical.
Carry out mapping by serving BS in the present embodiment, Ocn1 is heightened, perhaps Ocs1 is turned down the combination of perhaps above-mentioned two kinds of situations according to the green degree information that receives from green base station.Afterwards, switch decision parameter after serving BS will shine upon sends to user terminal, make the switch decision parameter after the mapping come into force at user terminal, being user terminal is being positioned at edge, green base station when but its serving BS is not green base station, is switching according to the switch decision parameter after the mapping.Like this, serving BS can carry out the center decision-making according to the green degree information that sends from a plurality of green base stations, promptly the green degree information that receives from the green base station of difference all uses same parameter maps table to carry out correspondence, thereby has avoided because the problem that the mapping difference between the different vendor of green base station is brought.
So far, finish the configuration flow of the wireless communication system in the present embodiment.
In addition, the structure of wireless communication system and Fig. 4 are similar in the present embodiment.Different is that the parameter maps module is arranged in the serving BS (being the ordinary base station of Serving cell), and the communication module of green base station is that green degree information is sent to serving BS.Particularly, this wireless communication system comprises: first base station is used to obtain the green degree information of self, and determine certainly as green base station according to described green degree information after, described green degree information is sent; Second base station is used to receive the green degree information that send described first base station, it is mapped as corresponding switch decision parameter sends to user terminal; Described user terminal is used for carrying out handover configurations according to the switch decision parameter after the described mapping.
Need to prove, when green base station is serving BS, only green degree information portion need be deployed to user terminal and get final product, can not will green degree information portion is deployed to corresponding target BS (certain base station of neighbor cell that promptly should the green base station), also needn't carry out in the base station of this neighbor cell and shine upon.
Embodiment 3: carrying out mapping at user terminal, is corresponding switch decision parameter with green degree information mapping
The configuration flow of the wireless communication system in the present embodiment and embodiment 1 are similar.Different is, green base station does not send to the serving BS and/or the user terminal of neighbor cell with the switch decision parameter after the mapping, but directly green degree information sent to user terminal after will green degree information mapping not being corresponding switch decision parameter.
User terminal is heightened Ocn1 according to the green degree information that is obtained, and perhaps Ocs1 is turned down, and the combination of perhaps above-mentioned two kinds of situations is cut green base station according to Ocn1 and/or Ocs1 after the mapping.
Perhaps, user terminal is turned down Ocn2 according to the green degree information that is obtained, and perhaps Ocs2 is heightened, and the combination of perhaps above-mentioned two kinds of situations judges whether to cut out green base station according to Ocn2 and/or Ocs2 after the mapping.
The mode that user terminal obtains green degree information has multiple: the broadcast by green base station obtains green degree information; When green base station was target BS, this green base station sent to serving BS with green degree information by the X2 signaling earlier, by the RRC signaling green degree information is sent to user terminal by serving BS again; When green base station was serving BS, this green base station sent to user terminal by the RRC signaling with green degree information.
Correspondingly, the wireless communication system in the present embodiment comprises:
First base station is used to obtain the green degree information of self, and determine certainly as green base station according to described green degree information after, described green degree information is sent;
User terminal is used to receive green degree information, and it is mapped as corresponding switch decision parameter, carries out handover configurations according to the switch decision parameter after the described mapping.
This wireless communication system further comprises:
Second base station is used to receive the green degree information that send described first base station, sends it to user terminal.
In the present embodiment, because the green degree information that obtains from one or more green base station uses identical corresponding relation to be mapped as the base station configuration parameter at user terminal, user terminal can carry out the center decision-making in handoff procedure, this has eliminated the influence that the difference between green base station is brought to parameter adjustment to a certain extent.Certainly, owing to carry out mapping at user terminal, the individual difference of user terminal also can fully take into account in handoff procedure, and the individual difference of described user terminal comprises: whether user terminal supports green base station, the qos requirement of user terminal etc.For the high user terminal of qos requirement, had better not switch in advance.
Embodiment 4: with green degree information mapping is corresponding power contorl parameters
In the present embodiment, green base station is corresponding power contorl parameters with green degree information mapping, raises according to the transmitting power of the power contorl parameters after the mapping with self.Further, the power contorl parameters after green base station will be shone upon sends to one or more neighbor cell, and the base station of neighbor cell reduces according to the transmitting power of the power contorl parameters after shining upon with self.Like this, no matter should in switching, serve as serving BS or target BS in the green base station, can both better user terminal be retained in its cell coverage area.
Embodiment 5: with green degree information mapping is corresponding antenna operation parameter
The configuration flow of wireless communication system and embodiment 4 are similar in the present embodiment.Different is that green base station is corresponding antenna operation parameter with green degree information mapping, according to the antenna operation parameter after the mapping antenna that self uses is adjusted, such as increasing the work antenna number; Perhaps increase antenna height; Perhaps reduce the angle of pitch of antenna; Perhaps the horizontal angle with antenna is adjusted into energy-conservation configuration from initial configuration, such as antenna main lobe is aimed at the hot spot region, i.e. and the more zone of number of users, and antenna main lobe may be aimed at positive north on the geographical position in the initial configuration.Further, the antenna operation parameter after green base station will be shone upon sends to one or more neighbor cell, and the adjustment opposite with green base station carried out according to the antenna operation parameter after shining upon in the base station of neighbor cell.Carry out following one of them operation such as, the base station of the neighbor cell antenna operation parameter after according to described mapping: reduce the work antenna number, reduce antenna height, increase antenna elevation angle, the antenna horizontal angle of adjusting self make it not conflict with the antenna main lobe direction of green base station.Particularly, the base station of neighbor cell is when adjusting self antenna, antenna operation parameter after the mapping that can earlier green base station be provided is from being converted to the antenna operation parameter of neighbor cell self in logic, this logical transition can be negate, work antenna such as green base station adds 1, and the work antenna of neighbor cell subtracts 1.
In a specific implementation, by increasing the work antenna number, green base station among the present invention can have the antenna that more can work than ordinary base station, promptly under the identical situation of energy consumption, can provide bigger transmitting power, the identical in other words energy that transmitting power consumed is less, the carbon emission amount is also less, so the mutual energy that consumes between the operation of base station itself and base station and the user terminal all can access reduction largely.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope of protection of the invention.

Claims (27)

1. the collocation method of a wireless communication system is characterized in that, comprising:
One or more base station in this wireless communication system obtains the green degree information of self;
After determining green base station, be corresponding base station configuration parameter with described green degree information mapping according to described green degree information;
According to the base station configuration parameter after the described mapping described wireless communication system is configured.
2. method according to claim 1, it is characterized in that, the target BS that is neighbor cell when described green base station, and when the serving BS of described Serving cell is ordinary base station, described is that corresponding base station configuration parameter comprises with described green degree information mapping: heighten the measurement skew Ocn1 relevant with place, green base station neighbor cell according to described green degree information, perhaps turn down the measurement skew Ocs1 relevant with Serving cell according to described green degree information, perhaps heighten Ocn1 and turn down Ocs1, the switch decision parameter after obtaining shining upon according to described green degree information.
3. method according to claim 2, it is characterized in that, described described green degree information mapping is further comprised for corresponding base station configuration parameter: the switch decision parameter after described green base station will be shone upon by the X2 signaling sends to described serving BS, sends to be switched user terminal by described serving BS by the switch decision parameter of RRC signaling after with described mapping again.
4. method according to claim 2, it is characterized in that, described is that corresponding base station configuration parameter further comprises with described green degree information mapping: described green base station sends to described serving BS by the X2 signaling with described green degree information, described serving BS sends to be switched user terminal with the switch decision parameter after the mapping after described green degree information mapping is the switch decision parameter of correspondence.
5. method according to claim 2, it is characterized in that, described is that corresponding base station configuration parameter further comprises with described green degree information mapping: described green base station sends to described serving BS by the X2 signaling with described green degree information, by the RRC signaling described green degree information being sent to be switched user terminal by described serving BS again, is corresponding switch decision parameter by described to be switched user terminal with described green degree information mapping.
6. method according to claim 1, it is characterized in that, the serving BS that is Serving cell when described green base station, and when the base station of described neighbor cell is ordinary base station, described is that corresponding base station configuration parameter comprises with described green degree information mapping: turn down the measurement skew Ocn2 relevant with neighbor cell according to described green degree information, perhaps heighten the measurement skew Ocs2 relevant with place, green base station Serving cell according to described green degree information, perhaps turn down Ocn2 and heighten Ocs2, the switch decision parameter after obtaining shining upon according to described green degree information.
7. method according to claim 6, it is characterized in that, described described green degree information mapping is further comprised for corresponding base station configuration parameter: described green base station sends to be switched user terminal by the switch decision parameter of RRC signaling after with described mapping.
8. method according to claim 6, it is characterized in that, described is that corresponding base station configuration parameter further comprises with described green degree information mapping: described green degree information is carried in described green base station in broadcast or RRC signaling, described to be switched user terminal obtains described green degree information from described broadcast or RRC signaling, and described green degree information mapping is the switch decision parameter of correspondence.
9. according to claim 3,4,5,7,8 each described methods, it is characterized in that described described wireless communication system being configured according to the base station configuration parameter after the described mapping comprises: the switch decision parameter of described to be switched user terminal after according to described mapping carried out the sub-district and switched.
10. method according to claim 1, it is characterized in that, described base station configuration parameter is the switch decision parameter, and described switch decision parameter comprises following one of them parameter: the measurement skew Ocn relevant with neighbor cell, the measurement skew Ocs that is correlated with Serving cell, the measurement side-play amount Off of incident.
11. method according to claim 1 is characterized in that, described is that corresponding base station configuration parameter comprises with described green degree information mapping: power contorl parameters is heightened according to described green degree information in described green base station;
Described described wireless communication system being configured according to the base station configuration parameter after the described mapping comprises: the power contorl parameters rising transmitting power of described green base station after according to described mapping.
12. method according to claim 11 is characterized in that, described described green degree information mapping is further comprised for corresponding base station configuration parameter: the power contorl parameters of described green base station after with described mapping sends to the base station of neighbor cell;
Described described wireless communication system being configured further according to the base station configuration parameter after the described mapping comprises: the power contorl parameters of the base station of described neighbor cell after according to described mapping reduces transmitting power.
13. method according to claim 1 is characterized in that, described base station configuration parameter is the antenna operation parameter, and described antenna operation parameter comprises following one of them parameter: work antenna number, antenna height, antenna elevation angle, antenna horizontal angle.
14. method according to claim 13 is characterized in that, described is that corresponding base station configuration parameter comprises with described green degree information mapping:
Described green base station is according to one of them is operated below the described green degree information and executing: increase the work antenna number, increase antenna height, reduce antenna elevation angle, the antenna horizontal angle is revised as energy-conservation configuration from initial configuration;
Described described wireless communication system being configured according to the base station configuration parameter after the described mapping comprises: the antenna operation parameter of described green base station after according to described mapping adjusted the antenna of self.
15. method according to claim 14 is characterized in that, described described green degree information mapping is further comprised for corresponding base station configuration parameter: the antenna operation parameter of described green base station after with described mapping sends to the base station of neighbor cell;
Described described wireless communication system being configured further according to the base station configuration parameter after the described mapping comprises:
The antenna operation parameter of the base station of described neighbor cell after according to described mapping carried out following one of them operation: reduce the work antenna number, reduce antenna height, increase antenna elevation angle, the antenna horizontal angle of adjusting self make it not conflict with the antenna main lobe direction of green base station.
16. method according to claim 1 is characterized in that, when described green degree information Gd was the percentage form, described was that corresponding base station configuration parameter comprises with described green degree information mapping: according to formula C Map=C InitGd iBase station configuration parameters C after determining to shine upon MapWherein, described C InitBe initial base station configuration parameter, Gd iGreen degree information for green base station i.
17. method according to claim 1 is characterized in that, when described green degree information Gd was the percentage form, described was that corresponding base station configuration parameter comprises with described green degree information mapping: when described green degree information is 0, and C Map=C InitWhen described green degree information is 1, C Map=C GreenWherein, described C InitBe initial base station configuration parameter, described C GreenBe energy-conservation base station configuration parameter, described C MapBe the base station configuration parameter after the mapping.
18. method according to claim 1 is characterized in that, when described green degree information Gd was the percentage form, the green degree information that described base station obtains self comprised: according to formula Gd t=I t/ I MAXPerhaps formula Gd t=C t/ C MAXCalculate the green degree information Gd of t constantly tWherein, described I tBe the charging current of moment t, described I MAXBe the maximum charging current of the natural energy collecting equipment that is provided with on the base station, described C tBe the power storage amount of moment t, described C MAXMaximum power memory space for the natural energy collecting equipment that is provided with on the base station.
19. method according to claim 1 is characterized in that, when described green degree information Gd was the Boolean form, the green degree information that described base station obtains self comprised: work as I t/ I MAXDuring 〉=T1, described green degree information is defined as 1, otherwise described green degree information is defined as 0;
Perhaps, work as C t/ C MAXDuring 〉=T1, described green degree information is defined as 1, otherwise described green degree information is defined as 0;
Wherein, described I tBe the charging current of moment t, described I MAXBe the maximum charging current of the natural energy collecting equipment that is provided with on the base station, described C tBe the power storage amount of moment t, described C MAXBe the maximum power memory space of the natural energy collecting equipment that is provided with on the base station, described T1 is the ratio thresholding that sets in advance.
20. method according to claim 1 is characterized in that, described green degree information is determined according to following one of them factor: natural energy is supplied with intensity, natural energy deposit degree, energy consumption of base station situation, base station energy-saving attribute.
21. a base station is characterized in that, comprising:
Green degree acquisition module is used to obtain the green degree information of base station, place, and after determining the base station, place according to described green degree information and being green base station, the work of trigger parameter mapping block;
The parameter maps module is used for described green degree information mapping is corresponding base station configuration parameter;
The configuration Executive Module is used for according to the base station configuration parameter after the described mapping base station, place being configured.
22. base station according to claim 21 is characterized in that, further comprises:
Communication module is used for the base station configuration parameter after the described mapping is sent to the base station of user terminal or neighbor cell.
23. base station according to claim 21 is characterized in that, when described base station configuration parameter was power contorl parameters, described configuration Executive Module was used for according to the power contorl parameters rising transmitting power after the described mapping.
24. base station according to claim 21, it is characterized in that, when described base station configuration parameter is the antenna operation parameter, described configuration Executive Module is used for according to the antenna operation parameter after the described mapping antenna being adjusted, and carries out following one of them operation: increase the work antenna number, increase antenna height, reduce antenna elevation angle, the antenna horizontal angle is revised as energy-conservation configuration from initial configuration;
Described antenna operation parameter comprises following one of them parameter: work antenna number, antenna height, antenna elevation angle, antenna horizontal angle.
25. a wireless communication system is characterized in that, comprising:
First base station is used to obtain the green degree information of self, and determine certainly as green base station according to described green degree information after, described green degree information is sent;
Second base station is used to receive the green degree information that send described first base station, it is mapped as corresponding switch decision parameter sends to user terminal;
Described user terminal is used for carrying out handover configurations according to the switch decision parameter after the described mapping.
26. a wireless communication system is characterized in that, comprising:
First base station is used to obtain the green degree information of self, and determine certainly as green base station according to described green degree information after, described green degree information is sent;
User terminal is used to receive green degree information, and it is mapped as corresponding switch decision parameter, carries out handover configurations according to the switch decision parameter after the described mapping.
27. system according to claim 26 is characterized in that, further comprises:
Second base station is used to receive the green degree information that send described first base station, sends it to user terminal.
CN201010204932.XA 2010-06-13 2010-06-13 The collocation method of wireless communication system, base station and wireless communication system Expired - Fee Related CN102281550B (en)

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