CN103874073A - Communication system carrier selection method, base stations and terminal devices - Google Patents
Communication system carrier selection method, base stations and terminal devices Download PDFInfo
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Abstract
The embodiment of the invention provides a communication system carrier selection method, base stations and terminal devices and relates to the field of mobile communication. By means of the communication system carrier selection method, the base stations and the terminal devices, coordinated use of frequency of the multi-type multi-carrier base stations can be achieved. The method includes the steps that firstly, each base station acquires base station information of adjacent base stations and device information of all the terminal devices in a signal covering range; then, interference conditions of uplinks and downlinks are measured, statistics on the interference conditions is carried out, and candidate carriers are selected out; finally, the candidate carriers are allocated according to a specific resource distribution scheme. The communication system carrier selection method, the base stations and the terminal devices are used for achieving coordinated use of the frequency of the multi-type multi-carrier base stations.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to a kind of carrier selecting method, base station and terminal equipment of communication system.
Background technology
LTE(Long Term Evolution; Long Term Evolution) system can be divided into FDD-LTE(Frequency Device Duplexing LTE according to physical layer transmission mode; frequency division multiplexing LTE) system and TDD-LTE(Time Device Duplexing LTE; time division multiplexing LTE) system; along with the development of the communication technology, the base station equipment of wireless communication system is to the evolution of Multi-Mode Base Station direction.
For the multi-carrier communications systems of traditional single standard, carrier wave between base station selects mainly to know by inter-base station interface (as X2 interface) the carrier wave configuration of adjacent base station, the mode of initiatively measuring by terminal measurement report or base station, obtain the information such as carrier frequency, bandwidth information, base station transmitting power, carrier-in-interference situation, then judge according to certain decision condition whether carrier wave is optimal selection.
And just the carrier wave in the multi-carrier communications systems of identical standard is selected to have proposed solution in prior art, the carrier wave that can not solve in the communication system of multi-modulation scheme multicarrier is selected problem, for the communication system of disposing based on multi-modulation scheme Multi-Carrier basestation, cannot give full play to performance of network equipments, cause the waste of resource.
Summary of the invention
Embodiments of the invention provide a kind of carrier selecting method, base station and terminal equipment of communication system, the coordination that can realize frequency between multi-modulation scheme Multi-Carrier basestation is used, in the communication system of solution multi-modulation scheme multicarrier, carrier wave is selected problem, and the optimum of realizing the network equipment uses.
For achieving the above object, embodiments of the invention adopt following technical scheme:
On the one hand, provide a kind of carrier selecting method of communication system, described method comprises:
Obtain network environment information, described network environment information comprises the base station information of all adjacent base stations and the facility information of the interior all terminal equipments of signal cover;
Determine uplink interference carrier wave by default uplink interference measurement strategies, and determine by default descending interferometry strategy the descending interfering carrier that each described terminal equipment is corresponding;
According to described network environment information and described uplink interference carrier wave, described descending interfering carrier that each described terminal equipment is corresponding, determine available standards standard and the candidate carrier set of each described terminal equipment;
Determine Resource Allocation Formula according to described network environment information and described candidate carrier set.
Second aspect, provides a kind of carrier selecting method of communication system, and described method comprises:
Receiving after the capacity of equipment solicited message that base station issues, to described base station transmitting apparatus information, described facility information comprises communication standard and the carrier wave of support;
Receiving after the disturbed test message that described base station issues, add up respectively the average interference power in each available carrier wave, the each described average interference power obtaining is carried out to quantification treatment, and be sent to described base station.
The third aspect, provides a kind of base station, and described base station comprises:
Acquiring unit, for obtaining network environment information, described network environment information comprises the base station information of all adjacent base stations and the facility information of the interior all terminal equipments of signal cover;
Disturb determining unit, for determining uplink interference carrier wave by default uplink interference measurement strategies, and determine by default descending interferometry strategy the descending interfering carrier that each described terminal equipment is corresponding;
Carrier wave selected cell, for according to described network environment information and described uplink interference carrier wave, described descending interfering carrier that each described terminal equipment is corresponding, determines available standards standard and the candidate carrier set of each described terminal equipment;
Resource allocation unit, for determining Resource Allocation Formula according to described network environment information and described candidate carrier set.
Fourth aspect, provides a kind of terminal equipment, and described terminal equipment comprises:
Request feedback unit, for receiving after the capacity of equipment solicited message that base station issues, to described base station transmitting apparatus information, described facility information comprises communication standard and the carrier wave of support;
Disturbed test feedback unit, for receiving after the disturbed test message that described base station issues, adds up respectively the average interference power in each available carrier wave, the each described average interference power obtaining is carried out to quantification treatment, and be sent to described base station.
The embodiment of the present invention provides a kind of carrier selecting method, base station and terminal equipment of communication system, first base station obtains the base station information of all adjacent base stations and the facility information of the interior all terminal equipments of signal cover, then measure the disturbed condition of statistics uplink downlink and filter out candidate carrier, finally according to specific Resource Allocation Formula, candidate carrier is distributed, the coordination that can realize frequency between multi-modulation scheme Multi-Carrier basestation is used.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The schematic flow sheet one of the carrier selecting method of a kind of communication system that Fig. 1 provides for the embodiment of the present invention;
The schematic flow sheet two of the carrier selecting method of a kind of communication system that Fig. 2 provides for the embodiment of the present invention;
The schematic flow sheet three of the carrier selecting method of a kind of communication system that Fig. 3 provides for the embodiment of the present invention;
A kind of communication scenes schematic diagram that Fig. 4 provides for the embodiment of the present invention;
The structural representation of a kind of base station that Fig. 5 provides for the embodiment of the present invention;
The structural representation of a kind of terminal equipment that Fig. 6 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of carrier selecting method of communication system, and based on base station side, as shown in Figure 1, the method comprises:
S101, obtain network environment information, network environment information comprises the facility information of all terminal equipments in the base station information of all adjacent base stations and signal cover.
S102, determine uplink interference carrier wave by default uplink interference measurement strategies, and determine by default descending interferometry strategy the descending interfering carrier that each terminal equipment is corresponding.
S103, according to network environment information and uplink interference carrier wave, descending interfering carrier that each terminal equipment is corresponding, determine available standards standard and the candidate carrier set of each terminal equipment;
S104, determine Resource Allocation Formula according to network environment information and candidate carrier set.
The embodiment of the present invention provides a kind of carrier selecting method of communication system, and based on terminal equipment side, as shown in Figure 2, the method comprises:
S201, receiving after the capacity of equipment solicited message that base station issues, to base station transmitting apparatus information, facility information comprises communication standard and the carrier wave of support;
S202, receiving after the disturbed test message that base station issues, add up respectively the average interference power in each available carrier wave, the each average interference power obtaining is carried out to quantification treatment, and is sent to base station.
The embodiment of the present invention provides a kind of carrier selecting method of communication system, first base station obtains the base station information of all adjacent base stations and the facility information of the interior all terminal equipments of signal cover, then measure the disturbed condition of statistics uplink downlink and filter out candidate carrier, finally according to specific Resource Allocation Formula, candidate carrier is distributed, the coordination that can realize frequency between multi-modulation scheme Multi-Carrier basestation is used.
In order to make those skilled in the art can more clearly understand the technical scheme that the embodiment of the present invention provides, below by specific embodiment, the carrier selecting method of the another kind of communication system that the embodiment of the present invention is provided is elaborated, and as shown in Figure 3, the method comprises:
S301, multi-modulation scheme Multi-Carrier basestation obtain the base station information of adjacent base station.
Concrete, under multi-modulation scheme Multi-Carrier basestation scene, multi-modulation scheme Multi-Carrier basestation is known the base station information of adjacent base station by inter-base station interface or network management system;
Wherein, multi-modulation scheme Multi-Carrier basestation is the communication base station of at least supporting more than one communication standards, more than one carrier waves;
Base station information comprises each adjacent base station communication standard of supporting and the working frequency points information, the carrier information etc. that configure, and the content of the above-mentioned base station information of enumerating is only for exemplary, includes but not limited to this.
Exemplary, as shown in Figure 4, carrier wave with TDD-LTE and FDD-LTE double-standard Multi-Carrier basestation is chosen as example, this double-standard Multi-Carrier basestation can be by the interface between base station, as S1 interface, X2 interface, or network management system is obtained communication standard, the working frequency points configuring of adjacent TDD-LTE base station or FDD-LTE base station supporting and the carrier information using;
Suppose multiple carrier informations that this TDD-LTE base station uses for F1, F2, F3, F4}, multiple carrier waves that this FDD-LTE base station is used are { f1, f2, f3, f4}; This double-standard Multi-Carrier basestation can obtain by the interface between base station or network management system { F1, F2, F3, F4} and { f1, f2, f3, two groups of carrier informations of f4}.
S302, multi-modulation scheme Multi-Carrier basestation obtain the facility information of all terminal equipments in signal cover.
Concrete, multi-modulation scheme Multi-Carrier basestation is to the each terminal equipment transmitting apparatus capability requests information in signal cover, and each terminal equipment receives after this capacity of equipment solicited message, sends facility information separately to this multi-modulation scheme Multi-Carrier basestation feedback;
Wherein, terminal equipment can, for supporting the single-mode terminal equipment of TDD-LTE or FDD-LTE communication standard, also can, for support the multi-mode terminal equipment of TDD-LTE and FDD-LTE communication standard simultaneously, to the particular type of terminal equipment, not limit herein;
Facility information comprises communication standard, the carrier wave that each terminal equipment supported separately, can also comprise the end messages such as carrier aggregation tenability, working frequency points, bandwidth, and the content of the above-mentioned facility information of enumerating is only for exemplary, includes but not limited to this.
Exemplary, as shown in Figure 4, the terminal equipment searching in the signal cover of TDD-LTE and FDD-LTE double-standard Multi-Carrier basestation is dual-mode terminal 1, dual-mode terminal 2, TDD-LTE terminal 1 and FDD-LTE terminal 1, double-standard Multi-Carrier basestation is to the each terminal equipment transmitting apparatus capability requests information in above-mentioned signal cover, and above-mentioned terminal equipment sends facility information separately to this double-standard base station feedback receiving after this capacity of equipment solicited message; For example TDD-LTE terminal 1 receives the facility information sending to this double-standard Multi-Carrier basestation after this capacity of equipment request: single mode, support TDD-LTE standard, support that carrier wave is { F1, F2, F3, F4}.
S303, multi-modulation scheme Multi-Carrier basestation are determined uplink interference carrier wave.
Concrete, multi-modulation scheme Multi-Carrier basestation is in default carrier frequency point and default working frequency range, in each available carrier wave, receive the interference from the service-user of each adjacent base station, measure statistics, obtain the information such as average interference power of this interference, and measure the available signal power of obtaining in each available carrier wave.After having obtained the average interference power and available signal power of each available carrier wave, ask for available signal power in each available carrier wave and the difference of average interference power, the carrier wave that this difference is wherein less than to the first power threshold is chosen to be uplink interference carrier wave.
Wherein, default carrier frequency point and default working frequency range can be the default settings attribute of this multi-modulation scheme Multi-Carrier basestation, can be also external input setting, do not limit herein; Useful signal is the signal of the required communication information of business transmitted between base station and terminal equipment, comprise the upstream data. signals that multi-modulation scheme Multi-Carrier basestation sends to multi-modulation scheme Multi-Carrier basestation to downlink data signal and the terminal equipment of terminal equipment transmission, available signal power can be detected and obtain by multi-modulation scheme Multi-Carrier basestation in the time sending or receive; The first power threshold can be base station default settings, can be also external input setting value, does not limit herein.
Exemplary, as shown in Figure 4, TDD-LTE and FDD-LTE double-standard Multi-Carrier basestation receive the service-user from adjacent TDD-LTE base station, as TDD-LTE terminal 2 with from the service-user of adjacent base station FDD-LTE base station, as the interference signal of FDD-LTE terminal 2, and measure statistics, calculate the average interference power that obtains interference signal in arbitrary available carrier wave.Further, according to the average interference power of each available carrier wave of obtaining, determine uplink interference carrier wave.
In the present embodiment, suppose that uplink interference carrier wave is carrier wave F3 with the pass through adjacent FDD-LTE base station definite carrier wave f2 definite by adjacent TDD-LTE base station.
S304, multi-modulation scheme Multi-Carrier basestation are determined the descending interfering carrier that each terminal equipment is corresponding.
Concrete, multi-modulation scheme Multi-Carrier basestation can issue descending disturbed test message to the each terminal equipment having accessed in signal cover, the each terminal equipment having accessed is receiving after descending disturbed test message, respectively its average interference power and available signal power in each available carrier wave of statistical measurement, and the average interference power that each is obtained and available signal power carry out quantification treatment generating quantification information, finally this quantitative information feedback is sent to this multi-modulation scheme Multi-Carrier basestation.Multi-modulation scheme Multi-Carrier basestation is after having obtained each average interference power of each terminal equipment correspondence in each available carrier wave, ask for the available signal power of each terminal equipment in each available carrier wave and the difference of average interference power, this difference is wherein less than to the selected descending interfering carrier corresponding to this terminal equipment of carrier wave of the second power threshold.
Wherein, multi-modulation scheme Multi-Carrier basestation issues descending disturbed test message and can comprise all or working frequency points and the bandwidth of the carrier wave of specific collection, for indicate the carrier wave object that need measure to each terminal equipment; The second power threshold can be base station default settings, can be also external input setting value, does not limit herein.
Exemplary, as shown in Figure 4, TDD-LTE and FDD-LTE double-standard Multi-Carrier basestation are to the terminal equipment dual-mode terminal 1 having accessed in signal cover, dual-mode terminal 2, TDD-LTE terminal 1 and FDD-LTE terminal 1 send descending disturbed test message, can be by { f1, f2, f3, f4} and/or { F1, F2, F3, F4} sends to above-mentioned terminal equipment, then above-mentioned terminal equipment calculates and quantizes its average interference power on above-mentioned each carrier wave respectively, finally the quantitative information of this average interference power is sent to TDD-LTE and FDD-LTE double-standard Multi-Carrier basestation.
Further, this double-standard Multi-Carrier basestation is obtaining one group of average interference power corresponding to each terminal equipment, after this terminal equipment average interference power that statistic quantification is obtained respectively on multiple different carriers, ask for the available signal power of this terminal equipment in each available carrier wave and the difference of average interference power, the carrier wave that difference is wherein less than to the second power threshold, is defined as the descending interfering carrier that this terminal equipment is corresponding.
In the present embodiment, the descending interfering carrier of supposing dual-mode terminal 1 correspondence is F1 is that descending interfering carrier corresponding to F1, FDD-LTE terminal 1 is f1 and f3 with f3, dual-mode terminal 2 without descending interfering carrier corresponding to corresponding descending interfering carrier, TDD-LTE terminal 1
S305, multi-modulation scheme Multi-Carrier basestation are determined available standards standard and the corresponding candidate carrier set of each terminal equipment.
Concrete, if terminal equipment is single-mode terminal, standard system is any in default the first standard or default the second standard; Whether, if terminal equipment is multimode terminal, standard system is default the first standard and totally two kinds of default the second standards, then support concurrent function further to determine corresponding candidate carrier set according to terminal equipment.
Wherein, in the present embodiment, default the first standard can be TDD-LTE standard, and default the second standard can be FDD-LTE standard, and the relation that refers in concrete application does not limit herein.
Exemplary, as shown in Figure 4, TDD-LTE and FDD-LTE double-standard Multi-Carrier basestation are according to network environment information and above-mentioned uplink interference carrier wave, descending interfering carrier that each terminal equipment is corresponding, first determine the available standards standard of each terminal equipment, support standard, with the carrier set supported of correspondence, as shown in table 1:
Table 1
TDD-LTE terminal 1 is only supported TDD-LTE standard, and the carrier set of its support is { F1, F2, F3, F4}; And FDD-LTE terminal 1 is only supported FDD-LTE standard, the carrier set of its support is { f1, f2, f3, f4}; Dual-mode terminal 1 is not supported TDD-LTE and FDD-LTE concurrent function simultaneously, and the carrier set of its support is TDD carrier wave={ F1, F2, F3, F4} or FDD carrier wave={ f1, f2, f3, f4}; Dual-mode terminal 2 is supported TDD-LTE and FDD-LTE concurrent function simultaneously, and the carrier set of its support is TDD carrier wave={ F1, F2, F3, F4} and FDD carrier wave={ f1, f2, f3, f4};
Further, in the corresponding carrier set of supporting of each terminal equipment, get rid of above-mentioned uplink interference carrier wave, descending interfering carrier that each terminal equipment is corresponding, thereby obtain standard system that each terminal equipment can use and corresponding candidate carrier set, as shown in table 2:
Table 2
S306, multi-modulation scheme Multi-Carrier basestation are determined available Resource Allocation Formula and are carried out scheduling of resource.
Exemplary, if TDD-LTE in Fig. 4 and FDD-LTE double-standard Multi-Carrier basestation are according to access user service priority, traffic carrying capacity, candidate carrier set, band interference situation, determine carrier wave and corresponding Resource Allocation Formula that each terminal equipment uses.
In the present embodiment, suppose that each terminal equipment corresponding informance is as shown in table 3:
Wherein, customer service priority is to determine according to the height of the corresponding grade of service of different communication service business type in the corresponding table of grade of service division recording in base station, and corresponding relation that the grade of service is divided instruction in corresponding table can be default settings in base station system, also can be external input setting, not limit herein.
For the ease of representing, traffic carrying capacity, according to user's average channel quality, is converted Resource Block (Resource Block, the RB) quantity needing into user; Available band information is the candidate carrier set after above-mentioned steps screening; Band interference is that TDD-LTE and FDD-LTE double-standard Multi-Carrier basestation are measured frequency band uplink interference performance number, according to terminal equipment quality of uplink signal, determines the up more strongly disturbing frequency band that is subject to.
Table 3
Further, multi-modulation scheme Multi-Carrier basestation carries out scheduling of resource to each terminal equipment and can realize by the following method.
Carry out scheduling of resource according to priority judgment criterion; Wherein, priority judgment criterion comprises with the service priority of each terminal equipment and sorting from high to low, be followed successively by corresponding terminal equipment and carry out scheduling of resource, carry out scheduling of resource for the highest terminal equipment corresponding to business of priority at first, finally carry out scheduling of resource for minimum terminal equipment corresponding to business of priority;
Carry out scheduling of resource according to bandwidth demand criterion; Wherein, bandwidth demand comprises the ratio of the average transmission rate of the unit bandwidth of eating dishes without rice or wine of operator and the signing service speed of user and this service channel used; Bandwidth demand criterion comprises according to bandwidth demand, for the terminal equipment of bandwidth demand maximum distributes maximum bandwidth resources, for the terminal equipment of bandwidth demand minimum distributes minimum bandwidth resources;
Carry out scheduling of resource according to allocation of carriers principle, allocation of carriers principle comprises that carrier-in-interference minimum principle, carrier channel optimal quality principle and carrier wave concentrate using priciple;
Wherein, if carrier-in-interference minimum principle comprises the interference power minimum of the arbitrary upstream or downstream carrier wave of terminal equipment in candidate carrier set, for terminal equipment distributes this carrier wave; If carrier channel optimal quality principle comprises that the average signal-to-noise ratio in arbitrary upstream or downstream carrier channel of terminal equipment in candidate carrier set is the highest,, for terminal equipment distributes this carrier wave, carrier wave is concentrated using priciple to comprise at least two terminal equipments is dispatched on same carrier wave.
Exemplary, as the terminal equipment in Fig. 4, according to the service priority sequence in table 3, determine that TDD-LTE terminal 1 and dual-mode terminal 1 priority are the highest, dual-mode terminal 2 priority are medium, and FDD-LTE terminal 1 priority is minimum.
When multi-modulation scheme Multi-Carrier basestation is each terminal equipment allocated frequency band resource, also want reference subcarrier to concentrate using priciple, therefore TDD-LTE terminal 1 and dual-mode terminal 1 can use TDD-LTE carrier wave { F2, F4}, and dual-mode terminal 2 can use TDD carrier wave={ F1, F2, F4} and FDD carrier wave={ f1, f3, f4}, FDD-LTE terminal 1 only can be used that FDD carrier wave={ f4}, therefore, dual-mode terminal 2 and FDD-LTE terminal 1 are used carrier wave { f4}.
Need to again dispatch carrier resource if the band interference instruction that the generation respective change such as above-mentioned service priority, business demand amount or adjacent base station send by inter-base station interface or network management system in the communication process of terminal equipment changes time, can perform step successively S301 to S306 carrier resource is redistributed.
The embodiment of the present invention provides a kind of carrier selecting method of communication system, first base station obtains the base station information of all adjacent base stations and the facility information of the interior all terminal equipments of signal cover, then measure the disturbed condition of statistics uplink downlink and filter out candidate carrier, finally according to specific Resource Allocation Formula, candidate carrier is distributed, the coordination that can realize frequency between multi-modulation scheme Multi-Carrier basestation is used.
The embodiment of the present invention provides a kind of base station 01, and as shown in Figure 5, this base station 01 comprises:
Acquiring unit 011, for obtaining network environment information, network environment information comprises the base station information of all adjacent base stations and the facility information of the interior all terminal equipments of signal cover;
Disturb determining unit 012, for determining uplink interference carrier wave by default uplink interference measurement strategies, and determine by default descending interferometry strategy the descending interfering carrier that each terminal equipment is corresponding;
Carrier wave selected cell 013, for according to network environment information and uplink interference carrier wave, descending interfering carrier that each terminal equipment is corresponding, determines available standards standard and the candidate carrier set of each terminal equipment;
Further, acquiring unit 011 specifically for:
Obtain the base station information of each adjacent base station by base-station interface or network management system, base station information comprises each adjacent base station communication standard of supporting and the working frequency points information, the carrier information that configure;
To the each terminal equipment transmitting apparatus capability requests information in signal cover, and receive the facility information of each terminal equipment feedback, facility information comprises communication standard and the carrier wave that each terminal equipment is supported.
Further, disturb determining unit 012 specifically for:
In default carrier frequency point and default working frequency range, receive, measure and add up average interference power and available signal power each available carrier wave from each adjacent base station, and the carrier wave that wherein available signal power and average interference power difference are less than the first power threshold is chosen to be to uplink interference carrier wave.
Further, disturb determining unit 012 also specifically for:
Issue descending disturbed test information to the each terminal equipment having accessed in signal cover, and receive average interference power and the available signal power in the different available carrier wave of each terminal equipment feedback, available signal power is wherein chosen to be to the descending interfering carrier that terminal equipment is corresponding with the carrier wave that average interference power difference is less than the second power threshold.
Further, carrier wave selected cell 013 specifically for:
If terminal equipment is single-mode terminal, standard system is any in default the first standard or default the second standard, and candidate carrier set is the set of the carrier wave except uplink interference carrier wave and descending interfering carrier corresponding to terminal equipment in carrier set corresponding to default the first standard or default the second standard;
If terminal equipment is multimode terminal and does not support multi-modulation scheme concurrent function, standard system is totally two kinds of default the first standard and default the second standards, and candidate carrier set is the set of the carrier wave except uplink interference carrier wave and descending interfering carrier corresponding to terminal equipment in carrier set corresponding to default the first standard or default the second standard;
If terminal equipment is multimode terminal and supports multi-modulation scheme concurrent function, standard system is totally two kinds of default the first standard and default the second standards, and candidate carrier set is the set of the carrier wave except uplink interference carrier wave and descending interfering carrier corresponding to terminal equipment in all carrier set corresponding to default the first standard and default the second standard.
Further, resource allocation unit 014 specifically for:
Carry out scheduling of resource according to priority judgment criterion, priority judgment criterion comprises with the service priority of each terminal equipment and sorting from high to low, is followed successively by corresponding terminal equipment and carries out scheduling of resource;
Carry out scheduling of resource according to bandwidth demand criterion, bandwidth demand criterion comprises with the bandwidth demand of each terminal equipment and sorting from high to low, the terminal equipment that corresponds to successively bandwidth demand maximum distributes maximum bandwidth resources, for the terminal equipment of bandwidth demand minimum distributes minimum bandwidth resources;
Carry out scheduling of resource according to allocation of carriers principle, allocation of carriers principle comprises that carrier-in-interference minimum principle, carrier channel optimal quality principle and carrier wave concentrate using priciple;
If carrier-in-interference minimum principle comprises interference power minimum on arbitrary carrier wave of terminal equipment in candidate carrier set, it is terminal equipment distributing carrier wave; If carrier channel optimal quality principle comprises that in arbitrary carrier channel of terminal equipment in carrier set, average signal-to-noise ratio is the highest, is the carrier wave in the set of terminal equipment distributing carrier wave; Carrier wave is concentrated using priciple to comprise at least two terminal equipments is dispatched on a carrier wave.
The embodiment of the present invention provides a kind of base station, first base station obtains the base station information of all adjacent base stations and the facility information of the interior all terminal equipments of signal cover, then measure the disturbed condition of statistics uplink downlink and filter out candidate carrier, finally according to specific Resource Allocation Formula, candidate carrier is distributed, the coordination that can realize frequency between multi-modulation scheme Multi-Carrier basestation is used.
The embodiment of the present invention provides a kind of terminal equipment 02, and as shown in Figure 6, this terminal equipment 02 comprises:
Disturbed test feedback unit 022, for receiving after the disturbed test message that base station issues, adds up respectively the average interference power in each available carrier wave, the each average interference power obtaining is carried out to quantification treatment, and be sent to base station.
The embodiment of the present invention provides a kind of terminal equipment, first receiving after the capacity of equipment solicited message that base station issues, to base station feedback transmitting apparatus information, then receiving after the disturbed test message that base station issues, measure the average interference power of the each available carrier wave of statistics, finally interference power is sent to base station so that it is terminal equipment distributing carrier wave that subsequent treatment is carried out in base station, the coordination that can realize frequency between multi-modulation scheme Multi-Carrier basestation is used.
In the several embodiment that provide in the application, should be understood that, disclosed system, equipment and method, can realize by another way.For example, apparatus embodiments described above is only schematic, for example, the division of described unit, be only that a kind of logic function is divided, when actual realization, can have other dividing mode, for example multiple unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.
In addition, in equipment and system in each embodiment of the present invention, each functional unit can be integrated in a processing unit, can be also that the independent physics of unit comprises, also can be integrated in a unit two or more unit.And above-mentioned each unit both can adopt the form of hardware to realize, and the form that also can adopt hardware to add SFU software functional unit realizes.
The all or part of step that realizes said method embodiment can complete by the relevant hardware of program command, and aforesaid program can be stored in a computer read/write memory medium, and this program, in the time carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (Read Only Memory, be called for short ROM), the various media that can be program code stored such as random access memory (Random Access Memory, be called for short RAM), magnetic disc or CD.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.
Claims (14)
1. a carrier selecting method for communication system, is characterized in that, described method comprises:
Obtain network environment information, described network environment information comprises the base station information of all adjacent base stations and the facility information of the interior all terminal equipments of signal cover;
Determine uplink interference carrier wave by default uplink interference measurement strategies, and determine by default descending interferometry strategy the descending interfering carrier that each described terminal equipment is corresponding;
According to described network environment information and described uplink interference carrier wave, described descending interfering carrier that each described terminal equipment is corresponding, determine available standards standard and the candidate carrier set of each described terminal equipment;
Determine Resource Allocation Formula according to described network environment information and described candidate carrier set.
2. method according to claim 1, is characterized in that, described in obtain network environment information and comprise:
Obtain the base station information of each described adjacent base station by base-station interface or network management system, described base station information comprises each described adjacent base station communication standard of supporting and the working frequency points information, the carrier information that configure;
To the each described terminal equipment transmitting apparatus capability requests information in signal cover, and receive the facility information of each described terminal equipment feedback, described facility information comprises communication standard and the carrier wave that each described terminal equipment is supported.
3. method according to claim 1, is characterized in that, describedly determines that by default uplink interference measurement strategies uplink interference carrier wave comprises:
In default carrier frequency point and default working frequency range, receive, measure and add up average interference power and available signal power each available carrier wave from each described adjacent base station, and the carrier wave that wherein said available signal power and described average interference power difference are less than the first power threshold is chosen to be to described uplink interference carrier wave.
4. method according to claim 1, is characterized in that, determines that by default descending interferometry strategy the descending interfering carrier that each described terminal equipment is corresponding comprises:
Issue descending disturbed test information to the each terminal equipment having accessed in signal cover, and receiving average interference power and the available signal power in the different available carrier wave of terminal equipment feedback described in each, the carrier wave that wherein said available signal power is less than to the second power threshold with described average interference power difference is chosen to be the described descending interfering carrier that described terminal equipment is corresponding.
5. method according to claim 1, is characterized in that, described available standards standard and the candidate carrier set of determining each described terminal equipment comprises:
If described terminal equipment is single-mode terminal, described standard system is any in default the first standard or default the second standard, and described candidate carrier set is the set of the carrier wave except described uplink interference carrier wave and descending interfering carrier corresponding to described terminal equipment in carrier set corresponding to described default the first standard or described default the second standard;
If described terminal equipment is multimode terminal and does not support multi-modulation scheme concurrent function, described standard system is totally two kinds of described default the first standard and described default the second standards, and described candidate carrier set is the set of the carrier wave except described uplink interference carrier wave and descending interfering carrier corresponding to described terminal equipment in carrier set corresponding to described default the first standard or described default the second standard;
If described terminal equipment is multimode terminal and supports multi-modulation scheme concurrent function, described standard system is totally two kinds of described default the first standard and described default the second standards, and described candidate carrier set is the set of the carrier wave except described uplink interference carrier wave and descending interfering carrier corresponding to described terminal equipment in all carrier set corresponding to described default the first standard and described default the second standard.
6. method according to claim 1, is characterized in that, describedly determines that according to described network environment information and described candidate carrier set Resource Allocation Formula comprises:
Carry out scheduling of resource according to priority judgment criterion, described priority judgment criterion comprises with the service priority of each described terminal equipment and sorting from high to low, is followed successively by corresponding described terminal equipment and carries out scheduling of resource;
Carry out scheduling of resource according to bandwidth demand criterion, described bandwidth demand criterion comprises with the bandwidth demand of each described terminal equipment and sorting from high to low, the described terminal equipment that corresponds to successively described bandwidth demand maximum distributes maximum bandwidth resources, for the described terminal equipment of described bandwidth demand minimum distributes minimum bandwidth resources;
Carry out scheduling of resource according to allocation of carriers principle, described allocation of carriers principle comprises that carrier-in-interference minimum principle, carrier channel optimal quality principle and carrier wave concentrate using priciple;
If described carrier-in-interference minimum principle comprises interference power minimum on arbitrary carrier wave of described terminal equipment in described candidate carrier set, distribute described carrier wave for described terminal equipment; If described carrier channel optimal quality principle comprises that in arbitrary carrier channel of described terminal equipment in described candidate carrier set, average signal-to-noise ratio is the highest, distribute described carrier wave for described terminal equipment; Described carrier wave is concentrated using priciple to comprise at least two described terminal equipments is dispatched on same carrier wave.
7. a carrier selecting method for communication system, is characterized in that, described method comprises:
Receiving after the capacity of equipment solicited message that base station issues, to described base station transmitting apparatus information, described facility information comprises communication standard and the carrier wave of support;
Receiving after the disturbed test message that described base station issues, add up respectively the average interference power in each available carrier wave, the each described average interference power obtaining is carried out to quantification treatment, and be sent to described base station.
8. a base station, is characterized in that, described base station comprises:
Acquiring unit, for obtaining network environment information, described network environment information comprises the base station information of all adjacent base stations and the facility information of the interior all terminal equipments of signal cover;
Disturb determining unit, for determining uplink interference carrier wave by default uplink interference measurement strategies, and determine by default descending interferometry strategy the descending interfering carrier that each described terminal equipment is corresponding;
Carrier wave selected cell, for according to described network environment information and described uplink interference carrier wave, described descending interfering carrier that each described terminal equipment is corresponding, determines available standards standard and the candidate carrier set of each described terminal equipment;
Resource allocation unit, for determining Resource Allocation Formula according to described network environment information and described candidate carrier set.
9. base station according to claim 8, is characterized in that, described acquiring unit specifically for:
Obtain the base station information of each described adjacent base station by base-station interface or network management system, described base station information comprises each described adjacent base station communication standard of supporting and the working frequency points information, the carrier information that configure;
To the each described terminal equipment transmitting apparatus capability requests information in signal cover, and receive the facility information of each described terminal equipment feedback, described facility information comprises communication standard and the carrier wave that each described terminal equipment is supported.
10. base station according to claim 8, is characterized in that, described interference determining unit specifically for:
In default carrier frequency point and default working frequency range, receive, measure and add up average interference power and available signal power each available carrier wave from each described adjacent base station, and the carrier wave that wherein said available signal power and described average interference power difference are less than the first power threshold is chosen to be to described uplink interference carrier wave.
11. base stations according to claim 8, is characterized in that, described interference determining unit also specifically for:
Issue descending disturbed test information to the each terminal equipment having accessed in signal cover, and receiving average interference power and the available signal power in the different available carrier wave of terminal equipment feedback described in each, the carrier wave that wherein said available signal power is less than to the second power threshold with described average interference power difference is chosen to be the described descending interfering carrier that described terminal equipment is corresponding.
12. base stations according to claim 8, is characterized in that, described carrier wave selected cell specifically for:
If described terminal equipment is single-mode terminal, described standard system is any in default the first standard or default the second standard, and described candidate carrier set is the set of the carrier wave except described uplink interference carrier wave and descending interfering carrier corresponding to described terminal equipment in carrier set corresponding to described default the first standard or described default the second standard;
If described terminal equipment is multimode terminal and does not support multi-modulation scheme concurrent function, described standard system is totally two kinds of described default the first standard and described default the second standards, and described candidate carrier set is the set of the carrier wave except described uplink interference carrier wave and descending interfering carrier corresponding to described terminal equipment in carrier set corresponding to described default the first standard or described default the second standard;
If described terminal equipment is multimode terminal and supports multi-modulation scheme concurrent function, described standard system is totally two kinds of described default the first standard and described default the second standards, and described candidate carrier set is the set of the carrier wave except described uplink interference carrier wave and descending interfering carrier corresponding to described terminal equipment in all carrier set corresponding to described default the first standard and described default the second standard.
13. base stations according to claim 8, is characterized in that, described resource allocation unit specifically for:
Carry out scheduling of resource according to priority judgment criterion, described priority judgment criterion comprises with the service priority of each described terminal equipment and sorting from high to low, is followed successively by corresponding described terminal equipment and carries out scheduling of resource;
Carry out scheduling of resource according to bandwidth demand criterion, described bandwidth demand criterion comprises with the bandwidth demand of each described terminal equipment and sorting from high to low, the described terminal equipment that corresponds to successively described bandwidth demand maximum distributes maximum bandwidth resources, for the described terminal equipment of described bandwidth demand minimum distributes minimum bandwidth resources;
Carry out scheduling of resource according to allocation of carriers principle, described allocation of carriers principle comprises that carrier-in-interference minimum principle, carrier channel optimal quality principle and carrier wave concentrate using priciple;
If described carrier-in-interference minimum principle comprises interference power minimum on arbitrary carrier wave of described terminal equipment in described candidate carrier set, distribute described carrier wave for described terminal equipment; If described carrier channel optimal quality principle comprises that in arbitrary carrier channel of described terminal equipment in described carrier set, average signal-to-noise ratio is the highest, distribute the described carrier wave in described carrier set for described terminal equipment; Described carrier wave is concentrated using priciple to comprise at least two described terminal equipments is dispatched on a carrier wave.
14. 1 kinds of terminal equipments, is characterized in that, described terminal equipment comprises:
Request feedback unit, for receiving after the capacity of equipment solicited message that base station issues, to described base station transmitting apparatus information, described facility information comprises communication standard and the carrier wave of support;
Disturbed test feedback unit, for receiving after the disturbed test message that described base station issues, adds up respectively the average interference power in each available carrier wave, the each described average interference power obtaining is carried out to quantification treatment, and be sent to described base station.
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