CN104796934A - Frequency range scheduling method and device - Google Patents
Frequency range scheduling method and device Download PDFInfo
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- CN104796934A CN104796934A CN201410026140.6A CN201410026140A CN104796934A CN 104796934 A CN104796934 A CN 104796934A CN 201410026140 A CN201410026140 A CN 201410026140A CN 104796934 A CN104796934 A CN 104796934A
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- frequency range
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a frequency range scheduling method. The method comprises that a base station selects one from configured available unauthorized frequency ranges as a target frequency range; power detection is carried out on the target frequency range; when the average reception power of the target frequency range in N detection periods is lower than the preset interference level, and it is determined that there is a terminal which uses the target frequency range for WiFi data transmission, the flow is completed; otherwise, the base station transmits data to all terminals in the target frequency range; and when the average reception power of the target frequency range in N detection periods is not lower than the preset interference level, another target frequency range is selected from the other available unauthorized frequency ranges, and power detection is carried out on the selected target frequency range. The invention also provides a frequency range scheduling method. Thus, frequency resource can be used in a more reasonable manner, and interference between systems is reduced.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of frequency range dispatching method and device.
Background technology
Along with constantly popularizing of intelligent terminal, following radio data business will present explosive increase.For meeting this growth, frequency spectrum resource be expanded into one of important direction.
The frequency spectrum resource that can be used to do transfer of data future mainly comprises authorizes frequency spectrum and the large class of unlicensed spectrum two.Authorize frequency spectrum operator's exclusiveness to use, unlicensed spectrum is then without the need to supervision department's license, and under meeting certain condition, different operators network all can use.
In unauthorized frequency range, present stage mainly uses 802.11 series for main Wireless Fidelity (WiFi) technology, and Long Term Evolution (LTE) network is mainly used in mandate frequency range.Along with the growing tension of frequency spectrum resource, LTE expands to unlicensed spectrum use becomes important direction.
For WiFi and LTE equipment coexist unauthorized frequency range use, will face undoubtedly disturb and coexistence problems.
Summary of the invention
In view of this, the invention provides a kind of frequency range dispatching method and device, can more reasonable employment frequency resource, and reduce the interference between system.
For solving the problems of the technologies described above, technical scheme of the present invention is achieved in that
A kind of frequency range dispatching method, be applied on the base station of control LTE system, described method comprises:
A, base station, in the available unauthorized frequency range of configuration, select an available unauthorized frequency range as target frequency bands by preset rules;
B, power detection is carried out to this target frequency bands, in N number of continuous print sense cycle, obtain the received power of each this frequency range of sense cycle, and calculate the mean receiving power of this frequency range within N number of cycle;
C, determine calculate mean receiving power whether be less than preset interference rank, if so, perform step e; Otherwise, perform step D;
D, this base station are being elected as in the available unauthorized frequency range outside target frequency bands, select an available unauthorized frequency range as current target frequency bands by preset rules, perform step B;
E, this base station determine whether there is the terminal using this target frequency bands to carry out the transmission of WiFi data in its each terminal of serving, if so, and process ends; Otherwise, perform step F;
All terminals of F, this base station and its service carry out transfer of data in this target frequency bands.
A kind of device, can be applicable to control on the base station of LTE system, this device comprises: dispensing unit, selected cell, detecting unit, determining unit and processing unit;
Described dispensing unit, for configuring available unauthorized frequency range;
Described selected cell, in the available unauthorized frequency range that configures at described dispensing unit, selects an available unauthorized frequency range as target frequency bands by preset rules; When described determining unit determines that the mean receiving power calculated is not less than default interference rank, electing as in the available unauthorized frequency range outside target frequency bands, select an available unauthorized frequency range as current target frequency bands by preset rules, and trigger described detecting unit and carry out power detection in this target frequency bands;
Described detecting unit, carries out power detection for the target frequency bands selected described selected cell, in N number of continuous print sense cycle, obtains the received power of each this frequency range of sense cycle, and calculates the mean receiving power of this frequency range within N number of cycle;
Described determining unit, for determining whether the mean receiving power that described detecting unit calculates is less than default interference rank, when the mean receiving power determining that described detecting unit calculates is less than default interference rank, determine in its each terminal of serving, whether to there is the terminal using this target frequency bands to carry out the transmission of WiFi data further, if so, end operation; Otherwise, carry out transfer of data with all terminals of its service in this target frequency bands.
In sum, the present invention selects one as target frequency bands by base station in the available unauthorized frequency range of configuration, and power detection is carried out to this target frequency bands, when the mean receiving power of this target frequency bands in N number of sense cycle is less than default interference rank, as long as when determining that there is this target frequency bands of use carries out the terminal of WiFi data transmission, process ends; Otherwise, carry out transfer of data with all terminals of its service in this target frequency bands; When the mean receiving power of this target frequency bands in N number of sense cycle is not less than default interference rank, select target frequency range in other available unauthorized frequency ranges, proceeds power detection.Can more reasonable employment frequency resource, and reduce the interference between system.
Accompanying drawing explanation
Fig. 1 is specific embodiment of the invention Mid Frequency dispatching method schematic flow sheet;
Fig. 2 is the structural representation of the device being applied to above-mentioned technology in the specific embodiment of the invention.
Embodiment
For making object of the present invention, technical scheme and advantage clearly understand, to develop simultaneously embodiment referring to accompanying drawing, scheme of the present invention is described in further detail.
A kind of frequency range dispatching method is proposed in the embodiment of the present invention, be applied on the base station of control LTE system, this base station selects one as target frequency bands in the available unauthorized frequency range of configuration, and power detection is carried out to this target frequency bands, when the mean receiving power of this target frequency bands in N number of sense cycle is less than default interference rank, as long as when determining that there is this target frequency bands of use carries out the terminal of WiFi data transmission, process ends; Otherwise, carry out transfer of data with all terminals of its service in this target frequency bands; When the mean receiving power of this target frequency bands in N number of sense cycle is not less than default interference rank, select target frequency range in other available unauthorized frequency ranges, proceeds power detection.By the program, can more reasonable employment frequency resource, and reduce the interference between system.
Be specific embodiment of the invention Mid Frequency dispatching method schematic flow sheet see Fig. 1, Fig. 1.Concrete steps are:
Step 101, starts.
When base station needs to use unauthorized frequency range to carry out transfer of data, use the technical scheme that the specific embodiment of the invention proposes, namely perform step 102.
Step 102, base station, in the available unauthorized frequency range of configuration, selects an available unauthorized frequency range as target frequency bands by preset rules.
Preset rules in this step can configure according to practical application, as Stochastic choice frequency range in the available unauthorized frequency range of configuration, or determine the power detection of preferentially carrying out which frequency range by the size of frequency range value, sort again or according to frequency range number, preferentially power detection etc. is carried out to a frequency range number large frequency range, do not limit in the specific embodiment of the invention and use the method for which kind of select target frequency range to realize and the technical scheme of inventing.
Step 103, power detection is carried out to this target frequency bands in this base station, in N number of continuous print sense cycle, obtains the received power of each this frequency range of sense cycle, and calculates the mean receiving power of this frequency range within N number of cycle.
N in this step configures according to embody rule, for being greater than the integer of 1.
Suppose that the time of each measuring period is T, time of N number of measuring period and be W.
Suppose that the received power monitored in target frequency bands within i-th measuring period is T
i, i ∈ [1, N], then, in time W, the mean receiving power namely in N number of sense cycle is
Step 104, this base station is determined whether the mean receiving power calculated is less than and is preset interference rank, if so, performs step 106; Otherwise, perform step 105.
Default interference rank in this step is configured according to embody rule environment.
Step 105, this base station is being elected as in the available unauthorized frequency range outside target frequency bands, selects an available unauthorized frequency range as current target frequency bands by preset rules, performs step 103.
When this base station determines that this target frequency bands can not use, then other available unauthorized frequency ranges of option and installment carry out power detection, determine whether to use.
In the present embodiment, this base station is being elected as in the available unauthorized frequency range outside target frequency bands, select an available unauthorized frequency range as current target frequency bands by preset rules, before, further need determine whether also there is the available unauthorized frequency range not being chosen as target frequency bands in the available unauthorized frequency range configured, if so, step 105 is performed; Otherwise, process ends.
Namely in this flow processing process, whether also there is the available unauthorized frequency range of non-detection power, if all available unauthorized frequency range of configuration has all carried out power detection, then determine the unauthorized frequency range not having to use, terminate current process.
Step 106, this base station determines whether there is the terminal using this target frequency bands to carry out the transmission of WiFi data in its each terminal of serving, and if so, performs step 108; Otherwise, perform step 107.
This base station determines whether there is the terminal using this target frequency bands to carry out the transmission of WiFi data in its each terminal of serving, comprising:
Whether this base station sends each terminal of inquiry to all terminal broadcast that it is served and is using described target frequency bands to send the message of WiFi data.
The message whether each terminal that this base station receives its service according to self using this target frequency bands to carry out the transmission of WiFi data is being fed back.
This base station, according to the message of each terminal feedback, determines whether there is the terminal using this target frequency bands to carry out the transmission of WiFi data.
During specific implementation, when this base station sends the message of inquiring and whether using this target frequency bands transmission WiFi data to each terminal that it is served, carry the frequency range number of this target frequency bands.
Any terminal of this base station service receives inquiry when whether using this target frequency bands to send the message of WiFi data, checks whether this target frequency bands is used as WiFi data and sends, if so, to this base station feedback occupied message of this target frequency bands; Otherwise, to this base station feedback this target frequency bands can message.
When this base station receives the message of each terminal feedback, determine in feedback message, whether to there is the occupied message of this target frequency bands, if so, perform step 108; Otherwise, perform step 107.
Step 107, all terminals of this base station and its service carry out transfer of data in this target frequency bands.
This base station can be used as the available unauthorized frequency range of target frequency bands and each terminal of its service to carry out transfer of data like this.
Step 108, terminates.
Current process terminates, and as arranged a silence period, within this silence period, power detection is not carried out to any available unauthorized frequency range in this base station; After silence period terminates, if this base station also needs to use unauthorized frequency range to carry out transfer of data, reuse concrete technical scheme of the present invention, determining can whether unauthorized frequency range.
WiFi and LTE system adopt different control access technologies.WiFi system is random access system, does not have concentrated network management and control; And LTE system carries out the control of concentrating, the access of leading subscriber and transfer of data by base station.
Run in identical frequency range for LTE and WiFi system, topmost problem is the mutual interference between two systems.Especially, for end side, in identical frequency, due to interference and the restriction of radio-frequency apparatus, the operation of two kinds of patterns can not be carried out simultaneously.Consider the control that WiFi system is not concentrated, the frequency range scheduling carrying out LTE and WiFi transfer of data is placed on the base station side controlling LTE system and carries out.
Based on same inventive concept, the application also proposes a kind of device, can be applicable to control on the base station of LTE system.It is the structural representation of the device being applied to above-mentioned technology in the specific embodiment of the invention see Fig. 2, Fig. 2.This device comprises: dispensing unit 201, selected cell 202, detecting unit 203 and determining unit 204.
Dispensing unit 201, for configuring available unauthorized frequency range;
Selected cell 202, in the available unauthorized frequency range that configures at dispensing unit 201, selects an available unauthorized frequency range as target frequency bands by preset rules; When determining unit 204 determines that the mean receiving power calculated is not less than default interference rank, electing as in the available unauthorized frequency range outside target frequency bands, select an available unauthorized frequency range as current target frequency bands by preset rules, and trigger detecting unit 203 carry out power detection in this target frequency bands;
Detecting unit 203, carries out power detection for the target frequency bands selected selected cell 202, in N number of continuous print sense cycle, obtains the received power of each this frequency range of sense cycle, and calculates the mean receiving power of this frequency range within N number of cycle;
Determining unit 204, for determining whether the mean receiving power that detecting unit 203 calculates is less than default interference rank, when the mean receiving power determining that detecting unit 203 calculates is less than default interference rank, determine in its each terminal of serving, whether to there is the terminal using this target frequency bands to carry out the transmission of WiFi data further, if so, end operation; Otherwise, carry out transfer of data with all terminals of its service in this target frequency bands.
Preferably,
Determining unit 204, for when determining that the mean receiving power calculated is not less than default interference rank, determine whether also there is the frequency range not being chosen as target frequency bands in the available unauthorized frequency range configured further, if, triggering selection unit 202 performs to be elected as in the available unauthorized frequency range outside target frequency bands, selects an available unauthorized frequency range as the operation of current target frequency bands by preset rules; Otherwise, end operation.
Preferably,
Determining unit 204, whether when using this target frequency bands to carry out the terminal of WiFi data transmission specifically for determining to exist in its each terminal of serving, whether all terminal broadcast to its service send each terminal of inquiry and are using described target frequency bands to send the message of WiFi data; The message whether each terminal receiving its service according to self using this target frequency bands to carry out the transmission of WiFi data is being fed back; According to the message of each terminal feedback, determine whether there is the terminal using this target frequency bands to carry out the transmission of WiFi data.
The unit of above-described embodiment can be integrated in one, and also can be separated deployment; A unit can be merged into, also can split into multiple subelement further.
In sum, the present invention selects one as target frequency bands by base station in the available unauthorized frequency range of configuration, and power detection is carried out to this target frequency bands, when the mean receiving power of this target frequency bands in N number of sense cycle is less than default interference rank, as long as when determining that there is this target frequency bands of use carries out the terminal of WiFi data transmission, process ends; Otherwise, carry out transfer of data with all terminals of its service in this target frequency bands; When the mean receiving power of this target frequency bands in N number of sense cycle is not less than default interference rank, select target frequency range in other available unauthorized frequency ranges, proceeds power detection.By the program, can more reasonable employment frequency resource, and reduce the interference between system.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a frequency range dispatching method, be applied on the base station of control Long Term Evolution LTE system, it is characterized in that, described method comprises:
A, base station, in the available unauthorized frequency range of configuration, select an available unauthorized frequency range as target frequency bands by preset rules;
B, power detection is carried out to this target frequency bands, in N number of continuous print sense cycle, obtain the received power of each this frequency range of sense cycle, and calculate the mean receiving power of this frequency range within N number of cycle;
C, determine calculate mean receiving power whether be less than preset interference rank, if so, perform step e; Otherwise, perform step D;
D, this base station are being elected as in the available unauthorized frequency range outside target frequency bands, select an available unauthorized frequency range as current target frequency bands by preset rules, perform step B;
E, this base station determine whether there is the terminal using this target frequency bands to carry out the transmission of Wireless Fidelity WiFi data in its each terminal of serving, if so, and process ends; Otherwise, perform step F;
All terminals of F, this base station and its service carry out transfer of data in this target frequency bands.
2. method according to claim 1, is characterized in that, after step D, before step D, described method comprises further:
Whether also there is the frequency range not being chosen as target frequency bands in the available unauthorized frequency range of this base station configuration, if so, perform step D; Otherwise, process ends.
3. according to the method in claim 2 or 3, it is characterized in that, in step e, this base station determines whether there is the terminal using this target frequency bands to carry out the transmission of WiFi data in its each terminal of serving, comprising:
Whether this base station sends each terminal of inquiry to all terminal broadcast that it is served and is using described target frequency bands to send the message of WiFi data;
The message whether each terminal that this base station receives its service according to self using this target frequency bands to carry out the transmission of WiFi data is being fed back;
This base station, according to the message of each terminal feedback, determines whether there is the terminal using this target frequency bands to carry out the transmission of WiFi data.
4. a device, can be applicable to control on the base station of LTE system, it is characterized in that, this device comprises: dispensing unit, selected cell, detecting unit and determining unit;
Described dispensing unit, for configuring available unauthorized frequency range;
Described selected cell, in the available unauthorized frequency range that configures at described dispensing unit, selects an available unauthorized frequency range as target frequency bands by preset rules; When described determining unit determines that the mean receiving power calculated is not less than default interference rank, electing as in the available unauthorized frequency range outside target frequency bands, select an available unauthorized frequency range as current target frequency bands by preset rules, and trigger described detecting unit and carry out power detection in this target frequency bands;
Described detecting unit, carries out power detection for the target frequency bands selected described selected cell, in N number of continuous print sense cycle, obtains the received power of each this frequency range of sense cycle, and calculates the mean receiving power of this frequency range within N number of cycle;
Described determining unit, for determining whether the mean receiving power that described detecting unit calculates is less than default interference rank, when the mean receiving power determining that described detecting unit calculates is less than default interference rank, determine in its each terminal of serving, whether to there is the terminal using this target frequency bands to carry out the transmission of Wireless Fidelity WiFi data further, if so, end operation; Otherwise, carry out transfer of data with all terminals of its service in this target frequency bands.
5. device according to claim 4, is characterized in that,
Described determining unit, for when determining that the mean receiving power calculated is not less than default interference rank, determine whether also there is the frequency range not being chosen as target frequency bands in the available unauthorized frequency range configured further, if, triggering the execution of described selected cell is electing as in the available unauthorized frequency range outside target frequency bands, selects an available unauthorized frequency range as the operation of current target frequency bands by preset rules; Otherwise, end operation.
6. the device according to claim 4 or 5, is characterized in that,
Described determining unit, whether when using this target frequency bands to carry out the terminal of WiFi data transmission specifically for determining to exist in its each terminal of serving, whether all terminal broadcast to its service send each terminal of inquiry and are using described target frequency bands to send the message of WiFi data; The message whether each terminal receiving its service according to self using this target frequency bands to carry out the transmission of WiFi data is being fed back; According to the message of each terminal feedback, determine whether there is the terminal using this target frequency bands to carry out the transmission of WiFi data.
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| CN201410026140.6A CN104796934B (en) | 2014-01-21 | 2014-01-21 | A kind of frequency range dispatching method and device |
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