CN105337715A - Carrier wave measurement method based on unlicensed frequency band and base station - Google Patents
Carrier wave measurement method based on unlicensed frequency band and base station Download PDFInfo
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- CN105337715A CN105337715A CN201510638558.7A CN201510638558A CN105337715A CN 105337715 A CN105337715 A CN 105337715A CN 201510638558 A CN201510638558 A CN 201510638558A CN 105337715 A CN105337715 A CN 105337715A
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- 238000000691 measurement method Methods 0.000 title abstract 4
- 238000005259 measurement Methods 0.000 claims abstract description 58
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 239000000969 carrier Substances 0.000 claims description 76
- 238000000034 method Methods 0.000 claims description 35
- 230000003252 repetitive effect Effects 0.000 claims description 16
- 230000011664 signaling Effects 0.000 claims description 8
- 238000012545 processing Methods 0.000 abstract description 6
- 238000001228 spectrum Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000004422 calculation algorithm Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
- H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/0008—Wavelet-division
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0057—Physical resource allocation for CQI
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/0073—Allocation arrangements that take into account other cell interferences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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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
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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
-
- 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
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
Abstract
The embodiment of the invention discloses a carrier wave measurement method based on an unlicensed frequency band. The carrier wave measurement method comprises the steps that if the proportion of user equipment of which CQI is less than a preset CQI threshold in a cell exceeds a preset value, a base station detects the interference situation of working carrier waves corresponding to the cell; if the working carrier waves are affected by strong interference, the base station transmits an carrier wave measurement indication to multiple sets of user equipment in the cell, the carrier wave measurement indication is used for indicating the multiple sets of user equipment to measure RSSI of the corresponding working carrier waves respectively, and the measured RSSI is returned to the base station; and the base station determines carrier wave switching of each set of user equipment according to the RSSI fed back by the multiple sets of user equipment. The embodiment of the invention also discloses the base station. With application of the carrier wave measurement method based on the unlicensed frequency band, base station detection efficiency can be enhanced and processing overhead can be reduced.
Description
Technical field
The present invention relates to wireless communication field, particularly relate to a kind of carrier wave method of measurement based on unauthorized frequency range and base station.
Background technology
Along with the sharply increase of message volume, 3GPP authorizes frequency spectrum to seem and is more and more not enough to provide higher network capacity.In order to improve the utilization of frequency spectrum resource further, 3GPP is just discussing how under the help of authorizing frequency spectrum, to use unlicensed spectrum, as 2.4GHz and 5GHz frequency range.The current mainly Wi-Fi of these unlicensed spectrums, bluetooth, radar, the systems such as medical treatment are in use.Carrier aggregation function allows and LTE is deployed in unauthorized frequency range becomes possibility.3GPP proposes the concept of LAA (LicensedAssistedAccess), authorizes the help of frequency spectrum to use unlicensed spectrum by LTE.In view of exempting to authorize existence in frequency range to comprise other access device such as Wi-Fi, bluetooth, one is used for avoiding radar mechanism, and dynamic spectrum selects (DFS, DynamicFrequencySelection) to be suggested.
Owing to there being good orthogonality to ensure that interference level in LTE network, the downstream transmission of base station and user need not consider whether have the base station of same operator or user transmitting around.And if LTE is deployed in unauthorized frequency range, consider the limit priority of radar system, DFS algorithm must be performed.And there is no the mechanism of DFS to avoid interference in traditional LTE system.In order to better at unauthorized band operation, LTE needs DFS mechanism, the defect place of existing technologies that Here it is.
Simultaneously, energy detection in traditional DFS algorithm, all detect based on the active energy of RSSI, the periodicity execution energy measuring that base station is semi-static, such Problems existing is: no matter whether there is interference, base station all can perform energy measuring in certain set time section, makes base station must stop normal transmission and receive performing Channel Detection, reduces system effectiveness.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, provides a kind of carrier wave method of measurement based on unauthorized frequency range and base station.The inefficient problem of base station measuring method in prior art can be solved.
In order to solve the problems of the technologies described above, embodiments provide a kind of carrier wave method of measurement based on unauthorized frequency range, comprising:
If the ratio that in community, CQI is less than the subscriber equipment of default CQI thresholding exceedes preset value, the disturbed condition of operating carriers corresponding to described community is detected in described base station;
If described operating carriers is by strong jamming, described base station sends carrier wave to the multiple subscriber equipmenies in described community and measures instruction, described carrier wave is measured instruction and is used to indicate the RSSI that each self-corresponding operating carriers measured by described multiple subscriber equipment, and to the RSSI that described base station return measurement obtains;
According to the RSSI of described multiple subscriber equipment feedback, described base station determines that each subscriber equipment is the need of carrying out carrier switch.
Wherein, the disturbed condition that operating carriers corresponding to described community is detected in described base station comprises:
The RSSI of described base station operating carriers that community described in repetitive measurement is corresponding in preset duration;
Described base station obtains average RSSI after being averaged by the RSSI of repetitive measurement;
Judge whether described average RSSI is greater than default RSSI threshold value;
If yes, determine that operating carriers corresponding to described community is subject to strong jamming;
If NO, operating carriers corresponding to described community is determined not by strong jamming.
Wherein, described base station comprises to the multiple subscriber equipmenies transmission carrier waves measurement instructions in described community:
Described base station is based on unauthorized carrier wave or authorize the schedule information of carrier wave or RRC signaling to send carrier wave measurement instruction to the multiple subscriber equipmenies in described community.
Wherein, according to the RSSI of described multiple subscriber equipment feedback, described base station determines that each subscriber equipment comprises the need of carrying out carrier switch:
Whether the RSSI of the described base station each self feed back of more described multiple subscriber equipment is respectively greater than described default RSSI threshold value;
If yes, the subscriber equipment that the RSSI of described base station indication feedback is less than described default RSSI threshold value carries out carrier switch.
Wherein, if the ratio that in described community, CQI is less than the subscriber equipment of default CQI thresholding exceedes preset value, the disturbed condition that operating carriers corresponding to described community is detected in described base station comprises:
Described base station obtains the CQI of the multiple user equipment to report in described community;
Calculate the ratio that CQI is less than the quantity of the subscriber equipment of described default CQI thresholding and the quantity of described multiple subscriber equipment;
If described ratio is greater than described preset value, the disturbed condition of operating carriers corresponding to described community is detected in described base station.
Accordingly, the embodiment of the present invention additionally provides a kind of base station, comprising:
Detect trigger module, if the ratio being less than the subscriber equipment of default CQI thresholding for CQI in community exceedes preset value, detect the disturbed condition of operating carriers corresponding to described community;
Measure indicating module, if for described operating carriers by strong jamming, send carrier wave to the multiple subscriber equipmenies in described community and measure instruction, described carrier wave is measured instruction and is used to indicate the RSSI that each self-corresponding operating carriers measured by described multiple subscriber equipment, and to the RSSI that described base station return measurement obtains;
Switch identification module, for determining that each subscriber equipment is the need of carrying out carrier switch according to the RSSI of described multiple subscriber equipment feedback.
Wherein, described detection trigger module is used for:
The RSSI of the operating carriers that community described in repetitive measurement is corresponding in preset duration;
Average RSSI is obtained after being averaged by the RSSI of repetitive measurement;
Judge whether described average RSSI is greater than default RSSI threshold value;
If yes, determine that operating carriers corresponding to described community is subject to strong jamming;
If NO, operating carriers corresponding to described community is determined not by strong jamming.
Wherein, described measurement indicating module is used for:
Based on unauthorized carrier wave or authorize the schedule information of carrier wave or RRC signaling to send carrier waves to the multiple subscriber equipmenies in described community to measure instruction.
Wherein, described switching identification module is used for:
Whether the RSSI of each self feed back of more described multiple subscriber equipment is greater than described default RSSI threshold value respectively;
If yes, the subscriber equipment that the RSSI of indication feedback is less than described default RSSI threshold value carries out carrier switch.
Wherein, described detection trigger module is used for:
Obtain the CQI of the multiple user equipment to report in described community;
Calculate the ratio that CQI is less than the quantity of the subscriber equipment of described default CQI thresholding and the quantity of described multiple subscriber equipment;
If described ratio is greater than described preset value, detect the disturbed condition of operating carriers corresponding to described community.
Implement the embodiment of the present invention, there is following beneficial effect:
When the ratio that base station CQI in community is less than the subscriber equipment of default CQI is less than preset value, the disturbed condition of operating carriers measure self and the disturbed condition of the operating carriers of intra-cell users device measuring are assessed, to determine whether to carry out carrier switch.Avoid base station periodically to carry out carrier wave measurement like this, become the passive detection of trigger-type from active detecting, decrease the processing expenditure of base station, the accuracy of the carrier switch assessment simultaneously improved.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of a kind of carrier wave method of measurement based on unauthorized frequency range that the embodiment of the present invention provides;
Fig. 2 be the embodiment of the present invention provide a kind of based on non-another schematic flow sheet collecting the carrier wave method of measurement of frequency range;
Fig. 3 is the mutual schematic diagram of a kind of communication system that the embodiment of the present invention provides;
Fig. 4 is the structural representation of a kind of base station that the embodiment of the present invention provides;
Fig. 5 is another structural representation of a kind of base station that the embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1, be the schematic flow sheet of a kind of carrier wave method of measurement based on unauthorized frequency range that the embodiment of the present invention provides, in embodiments of the present invention, described method comprises:
If the ratio that in S101 community, CQI is less than the subscriber equipment of default CQI thresholding exceedes preset value, the disturbed condition of operating carriers corresponding to described community is detected in described base station.
Wherein, the base station of the embodiment of the present invention and subscriber equipment are operated in the community of unauthorized frequency range, and the carrier wave that namely community is corresponding is, the carrier wave of the current use in the community of operating carriers belonging to base station.Multiple subscriber equipmenies in community can the CQI (ChannelQualityIndicator of respective feeding back uplink channel, channel quality indicates, be called for short CQI), base station receives the CQI of multiple subscriber equipment feedback in preset duration, and the CQI received and default CQI thresholding are compared, determine that CQI is less than the quantity of the subscriber equipment of default CQI thresholding, calculate the ratio that CQI is less than the quantity of the subscriber equipment of default CQI thresholding and the quantity of intra-cell users equipment, if the ratio calculated is greater than preset value, the disturbed condition of the operating carriers that detected cells, base station is corresponding, to determine whether operating carriers is subject to strong jamming, if be subject to strong jamming to show that the operating carriers of base station may need to switch.
If the described operating carriers of S102 is by strong jamming, described base station sends carrier wave to the multiple subscriber equipmenies in described community and measures instruction, described carrier wave is measured instruction and is used to indicate the RSSI that each self-corresponding operating carriers measured by described multiple subscriber equipment, and to the RSSI that described base station return measurement obtains.
Concrete, if operating carriers is subject to strong jamming, base station sends carrier wave to the multiple subscriber equipmenies in community and measures instruction, wherein carrier wave measurement instruction is available by authorizing the carrier wave of frequency range or the carrier wave of unauthorized frequency range to send, such as: by schedule information or RRC (RadioResourceControl, wireless heterogeneous networks, is called for short RRC) signaling carries.Carrier wave measures the multiple subscriber equipmenies indicating and send in community, multiple subscriber equipment is in the subscriber equipment of connected state, each subscriber equipment receives after carrier wave measures instruction and measures each self-corresponding operating carriers, to obtain the RSSI (ReceivedSignalStrengthIndicator of operating carriers, received signal strength indicator, be called for short RSSI), and respectively towards the RSSI that base station return measurement obtains.
According to the RSSI of described multiple subscriber equipment feedback, S103, described base station determine that each subscriber equipment is the need of carrying out carrier switch.
Concrete, base station contrasts the RSSI of subscriber equipment feedback and the relation of default RSSI thresholding respectively, if be greater than RSSI thresholding, show that the operating carriers of corresponding user equipment side is subject to strong jamming equally, base station is that this subscriber equipment carries out carrier switch.
Implement embodiments of the invention, when the ratio that base station CQI in community is less than the subscriber equipment of default CQI is less than preset value, the disturbed condition of operating carriers measure self and the disturbed condition of the operating carriers of intra-cell users device measuring are assessed, to determine whether to carry out carrier switch.Avoid base station periodically to carry out carrier wave measurement like this, become the passive detection of trigger-type from active detecting, decrease the processing expenditure of base station, the accuracy of the carrier switch assessment simultaneously improved.
See Fig. 2, be another schematic flow sheet of a kind of method of measurement based on unauthorized frequency range carrier wave that the embodiment of the present invention provides, in embodiments of the present invention, described method comprises:
The CQI of the multiple user equipment to report in S201, acquisition community, base station.
Concrete, carrier wave corresponding to community is the carrier wave of unauthorized frequency range, multiple subscriber equipmenies in community represent the subscriber equipment being in connected state, each subscriber equipment reports CQI to base station after meeting certain report condition, such as, subscriber equipment periodically reports CQI or subscriber equipment reporting CQI before base-station transmission data to base station.Wherein, base station obtains the CQI of multiple user equipment to report in preset duration, and preset duration can be arranged as required, and the present invention is not restricted.
S202, calculating CQI are less than the ratio of the quantity of the subscriber equipment of default CQI thresholding and the quantity of described multiple subscriber equipment.
Wherein, the quantity of the subscriber equipment in community is determined in base station, subscriber equipment is the subscriber equipment of connected state, and judge whether to be less than default CQI according to the CQI of subscriber equipment feedback, statistics CQI is less than the quantity of the subscriber equipment of default CQI thresholding, and in calculation plot, CQI is less than the ratio of the quantity of the multiple subscriber equipmenies in the quantity of the subscriber equipment of default CQI thresholding and community.
Such as, presetting CQI thresholding is 8, the subscriber equipment of 4 connected states is had in community belonging to base station, the CQI that base station obtains 4 subscriber equipment feedbacks in preset duration is respectively 6,5,4,10, the quantity that then in community, CQI is less than the subscriber equipment of default CQI thresholding is 3, and ratio is 3/4=0.75.
Whether S203, described ratio are greater than preset value.
Wherein, if the ratio that S202 calculates is greater than preset value, perform S204, if the ratio that S202 calculates is not more than preset value, perform S205.
Such as, preset value is the ratio that 0.5, S202 calculates is 0.75,0.75 > 0.5, performs S204.
The RSSI of S204, described base station operating carriers that community described in repetitive measurement is corresponding in preset duration.
Wherein, the duration of preset duration and the measurement in preset duration are herein, time interval the present invention is not restricted, and can arrange as required.
S205, do not carry out carrier wave measurement.
S206, described base station obtain average RSSI after being averaged by the RSSI of repetitive measurement.
Specifically, method the present invention that the multiple RSSI obtained for S204 repetitive measurement average is not restricted, and can get simple arithmetic mean value, geometrical mean and weighted arithmetic average etc., additive method also can be adopted to average.
Whether S207, described average RSSI are greater than default RSSI threshold value.
Wherein, if the average RSSI that S206 calculates is greater than default RSSI threshold value, perform S208; If the average RSSI that S206 calculates is not more than default RSSI threshold value, perform S209.
S208, determine that operating carriers corresponding to described community is subject to strong jamming.
Wherein, base station determines that operating carriers is subject to strong jamming, show that the service quality of business declines and may normally carry out by traffic affecting, subscriber equipment in indicating cell carries out carrier wave measurement, be confirmed whether further to need to carry out carrier switch according to carrier measurements, to ensure the service quality of business.
S209, determine that operating carriers corresponding to described community is not subject to strong jamming.
S210, base station is based on unauthorized carrier wave or authorize the schedule information of carrier wave or RRC signaling to send carrier waves to the multiple subscriber equipmenies in described community to measure instruction, described carrier wave measures the RSSI that each self-corresponding operating carriers measured by the described multiple subscriber equipment of indicating user instruction, and to the RSSI that described base station return measurement obtains.
Wherein, each subscriber equipment takes multiple measurements operating carriers in preset duration, gets the mean value of repetitive measurement, returns the RSSI after averaging to base station, and detailed process can measure the method for average RSSI with reference to base station side.
Whether the RSSI of S211, feedback is greater than described default RSSI threshold value.
Wherein, the RSSI of the more each subscriber equipment in base station feedback and the size of default RSSI threshold value, if the RSSI of feedback is greater than default RSSI threshold value, perform S213, otherwise perform S212.
S212, not equipment for indicating user switch.
S213, equipment for indicating user switch.
Wherein, to be switched target carrier is determined in base station, carry the frequency of target carrier and the carrier switch standard of bandwidth to needing the subscriber equipment carrying out carrier switch to send, this subscriber equipment receives carrier switch instruction, and current operating carriers is switched to target carrier.
Implement embodiments of the invention, when the ratio that base station CQI in community is less than the subscriber equipment of default CQI is less than preset value, the disturbed condition of operating carriers measure self and the disturbed condition of the operating carriers of intra-cell users device measuring are assessed, to determine whether to carry out carrier switch.Avoid base station periodically to carry out carrier wave measurement like this, become the passive detection of trigger-type from active detecting, decrease the processing expenditure of base station, the accuracy of the carrier switch assessment simultaneously improved.
See Fig. 3, for the mutual schematic diagram of a kind of communication system that the embodiment of the present invention provides, in embodiments of the present invention, communication system comprises at least one user terminal in base station and affiliated subdistrict, below with regard to being described alternately between base station and a subscriber equipment, interaction flow is as follows:
S301, subscriber equipment report CQI to base station.Wherein, the multiple subscriber equipmenies in affiliated subdistrict, base station report CQI to base station.
In S302, statistics community, base station, CQI is less than the ratio of the quantity of the subscriber equipment of pre-determined threshold.Wherein, ratio is the ratio that in community, CQI is less than the quantity of the subscriber equipment of default CQI thresholding and the quantity of intra-cell users equipment, and wherein subscriber equipment is connected state.
S303, base station determine that ratio is greater than preset value.Wherein ratio is the ratio that S302 calculates.
Multiple RSSI of operating carriers in S304, base station measurement preset duration, and the mean value calculating multiple RSSI obtains average RSSI.
S305, base station determine that average RSSI is greater than default RSSI threshold value.Wherein average RSSI is that S304 calculates.
S306, base station send carrier wave to subscriber equipment and measure instruction.Wherein, subscriber equipment is the multiple subscriber equipmenies for connected state in community.
Multiple RSSI measured by S307, subscriber equipment in preset duration, and gets the mean value of multiple RSSI.Wherein, the quantity of the duration of preset duration, the RSSI of measurement and time interval the present invention of measurement are not restricted, and can arrange as required.
S308, subscriber equipment return average RSSI to base station.
S309, base station determine that the average RSSI that subscriber equipment feeds back is greater than default RSSI threshold value.
S310, determine target carrier.
S311, base station send carrier switch instruction to subscriber equipment, are switched in target carrier by current operating carriers with equipment for indicating user.
Implement embodiments of the invention, when the ratio that base station CQI in community is less than the subscriber equipment of default CQI is less than preset value, the disturbed condition of operating carriers measure self and the disturbed condition of the operating carriers of intra-cell users device measuring are assessed, to determine whether to carry out carrier switch.Avoid base station periodically to carry out carrier wave measurement like this, become the passive detection of trigger-type from active detecting, decrease the processing expenditure of base station, the accuracy of the carrier switch assessment simultaneously improved.
See Fig. 4, for the structural representation of a kind of base station that the embodiment of the present invention provides, in embodiments of the present invention, described base station is for performing the method shown in Fig. 1, and described base station comprises: detect trigger module 401, measure indicating module 402 and switch identification module 403.
Detect trigger module 401, if the ratio being less than the subscriber equipment of default CQI thresholding for CQI in community exceedes preset value, detect the disturbed condition of operating carriers corresponding to described community.
Measure indicating module 402, if for described operating carriers by strong jamming, send carrier wave to the multiple subscriber equipmenies in described community and measure instruction, described carrier wave is measured instruction and is used to indicate the RSSI that each self-corresponding operating carriers measured by described multiple subscriber equipment, and to the RSSI that described base station return measurement obtains.
Switch identification module 403, for determining that each subscriber equipment is the need of carrying out carrier switch according to the RSSI of described multiple subscriber equipment feedback.
The embodiment of the present invention and embodiment of the method one are based on same design, and its technique effect brought is also identical, and detailed process please refer to the description of embodiment of the method one, do not pluck herein and repeat.
Optionally, in some embodiments of the invention, described detection trigger module is used for:
The RSSI of the operating carriers that community described in repetitive measurement is corresponding in preset duration;
Average RSSI is obtained after being averaged by the RSSI of repetitive measurement;
Judge whether described average RSSI is greater than default RSSI threshold value;
If yes, determine that operating carriers corresponding to described community is subject to strong jamming;
If NO, operating carriers corresponding to described community is determined not by strong jamming.
Optionally, in some embodiments of the invention, described measurement indicating module is used for:
Based on unauthorized carrier wave or authorize the schedule information of carrier wave or RRC signaling to send carrier waves to the multiple subscriber equipmenies in described community to measure instruction.
Optionally, in some embodiments of the invention, described switching identification module is used for:
Whether the RSSI of each self feed back of more described multiple subscriber equipment is greater than described default RSSI threshold value respectively;
If yes, the subscriber equipment that the RSSI of indication feedback is less than described default RSSI threshold value carries out carrier switch.
Optionally, in some embodiments of the invention, described detection trigger module is used for:
Obtain the CQI of the multiple user equipment to report in described community;
Calculate the ratio that CQI is less than the quantity of the subscriber equipment of described default CQI thresholding and the quantity of described multiple subscriber equipment;
If described ratio is greater than described preset value, detect the disturbed condition of operating carriers corresponding to described community.
The embodiment of the present invention and embodiment of the method two are based on same design, and its technique effect brought is also identical, and detailed process please refer to the description of embodiment of the method two, repeats no more herein.
See Fig. 5, see Fig. 5, for another structural representation of a kind of base station of the embodiment of the present invention, in this enforcement, base station is for realizing the carrier wave method of measurement based on unauthorized frequency range described in Fig. 1, base station comprises processor 501, memory 502 and communication interface 503, and the quantity of the processor 501 in base station can be one or more, and Fig. 5 is for a processor.In some embodiments of the present invention, processor 501, memory 502 are connected, for bus connection in Fig. 5 by bus or other modes with communication interface 503.
Wherein, in memory 502, store batch processing code, and processor 501 is for calling the program code stored in memory 502, for performing following operation:
If the ratio that in community, CQI is less than the subscriber equipment of default CQI thresholding exceedes preset value, detect the disturbed condition of operating carriers corresponding to described community;
If described operating carriers is by strong jamming, send carrier wave to the multiple subscriber equipmenies in described community and measure instruction, described carrier wave is measured instruction and is used to indicate the RSSI that each self-corresponding operating carriers measured by described multiple subscriber equipment, and to the RSSI that described base station return measurement obtains;
RSSI according to described multiple subscriber equipment feedback determines that each subscriber equipment is the need of carrying out carrier switch.
In some embodiments of the invention, the disturbed condition that processor 501 performs operating carriers corresponding to the described community of described detection comprises:
The RSSI of described base station operating carriers that community described in repetitive measurement is corresponding in preset duration;
Described base station obtains average RSSI after being averaged by the RSSI of repetitive measurement;
Judge whether described average RSSI is greater than default RSSI threshold value;
If yes, determine that operating carriers corresponding to described community is subject to strong jamming;
If NO, operating carriers corresponding to described community is determined not by strong jamming.
In some embodiments of the invention, processor execution is described comprises to the multiple subscriber equipmenies transmission carrier waves measurement instructions in described community:
Based on unauthorized carrier wave or authorize the schedule information of carrier wave or RRC signaling to send carrier waves to the multiple subscriber equipmenies in described community to measure instruction.
In some embodiments of the invention, the described RSSI according to described multiple subscriber equipment feedback of processor execution determines that each subscriber equipment comprises the need of carrying out carrier switch:
Whether the RSSI of each self feed back of more described multiple subscriber equipment is greater than described default RSSI threshold value respectively;
If yes, the subscriber equipment that the RSSI of indication feedback is less than described default RSSI threshold value carries out carrier switch.
In some embodiments of the invention, if processor performs the ratio that CQI in described community is less than the subscriber equipment of default CQI thresholding exceed preset value, the disturbed condition that operating carriers corresponding to described community is detected in described base station comprises:
Obtain the CQI of the multiple user equipment to report in described community;
Calculate the ratio that CQI is less than the quantity of the subscriber equipment of described default CQI thresholding and the quantity of described multiple subscriber equipment;
If described ratio is greater than described preset value, detect the disturbed condition of operating carriers corresponding to described community.
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-OnlyMemory, ROM) or random store-memory body (RandomAccessMemory, RAM) etc.
Above disclosedly be only a kind of preferred embodiment of the present invention, certainly the interest field of the present invention can not be limited with this, one of ordinary skill in the art will appreciate that all or part of flow process realizing above-described embodiment, and according to the equivalent variations that the claims in the present invention are done, still belong to the scope that invention is contained.
Claims (10)
1., based on a carrier wave method of measurement for unauthorized frequency range, it is characterized in that, comprising:
If the ratio that in community, channel quality indicator (CQI) is less than the subscriber equipment of default CQI thresholding exceedes preset value, the disturbed condition of operating carriers corresponding to described community is detected in described base station;
If described operating carriers is by strong jamming, described base station sends carrier wave to the multiple subscriber equipmenies in described community and measures instruction, described carrier wave is measured instruction and is used to indicate the received signal strength indicator RSSI that each self-corresponding operating carriers measured by described multiple subscriber equipment, and to the RSSI that described base station return measurement obtains;
According to the RSSI of described multiple subscriber equipment feedback, described base station determines that each subscriber equipment is the need of carrying out carrier switch.
2. the method for claim 1, is characterized in that, the disturbed condition that operating carriers corresponding to described community is detected in described base station comprises:
The RSSI of described base station operating carriers that community described in repetitive measurement is corresponding in preset duration;
Described base station obtains average RSSI after being averaged by the RSSI of repetitive measurement;
Judge whether described average RSSI is greater than default RSSI threshold value;
If yes, determine that operating carriers corresponding to described community is subject to strong jamming;
If NO, operating carriers corresponding to described community is determined not by strong jamming.
3. the method for claim 1, is characterized in that, described base station sends carrier wave measurement instruction to the multiple subscriber equipmenies in described community and comprises:
Described base station is based on unauthorized carrier wave or authorize the schedule information of carrier wave or RRC signaling to send carrier wave measurement instruction to the multiple subscriber equipmenies in described community.
4. method as claimed in claim 2, is characterized in that, according to the RSSI of described multiple subscriber equipment feedback, described base station determines that each subscriber equipment comprises the need of carrying out carrier switch:
Whether the RSSI of the described base station each self feed back of more described multiple subscriber equipment is respectively greater than described default RSSI threshold value;
If yes, the subscriber equipment that the RSSI of described base station indication feedback is less than described default RSSI threshold value carries out carrier switch.
5. as the method for claim 1-4 as described in any one, it is characterized in that, if the ratio that in described community, CQI is less than the subscriber equipment of default CQI thresholding exceedes preset value, the disturbed condition that operating carriers corresponding to described community is detected in described base station comprises:
Described base station obtains the CQI of the multiple user equipment to report in described community;
Calculate the ratio that CQI is less than the quantity of the subscriber equipment of described default CQI thresholding and the quantity of described multiple subscriber equipment;
If described ratio is greater than described preset value, the disturbed condition of operating carriers corresponding to described community is detected in described base station.
6. a base station, is characterized in that, comprising:
Detect trigger module, if the ratio being less than the subscriber equipment of default CQI thresholding for CQI in community exceedes preset value, detect the disturbed condition of operating carriers corresponding to described community;
Measure indicating module, if for described operating carriers by strong jamming, send carrier wave to the multiple subscriber equipmenies in described community and measure instruction, described carrier wave is measured instruction and is used to indicate the RSSI that each self-corresponding operating carriers measured by described multiple subscriber equipment, and to the RSSI that described base station return measurement obtains;
Switch identification module, for determining that each subscriber equipment is the need of carrying out carrier switch according to the RSSI of described multiple subscriber equipment feedback.
7. base station as claimed in claim 6, it is characterized in that, described detection trigger module is used for:
The RSSI of the operating carriers that community described in repetitive measurement is corresponding in preset duration;
Average RSSI is obtained after being averaged by the RSSI of repetitive measurement;
Judge whether described average RSSI is greater than default RSSI threshold value;
If yes, determine that operating carriers corresponding to described community is subject to strong jamming;
If NO, operating carriers corresponding to described community is determined not by strong jamming.
8. base station as claimed in claim 6, it is characterized in that, described measurement indicating module is used for:
Based on unauthorized carrier wave or authorize the schedule information of carrier wave or RRC signaling to send carrier waves to the multiple subscriber equipmenies in described community to measure instruction.
9. base station as claimed in claim 7, it is characterized in that, described switching identification module is used for:
Whether the RSSI of each self feed back of more described multiple subscriber equipment is greater than described default RSSI threshold value respectively;
If yes, the subscriber equipment that the RSSI of indication feedback is less than described default RSSI threshold value carries out carrier switch.
10., as the base station of claim 6-9 as described in any one, it is characterized in that, described detection trigger module is used for:
Obtain the CQI of the multiple user equipment to report in described community;
Calculate the ratio that CQI is less than the quantity of the subscriber equipment of described default CQI thresholding and the quantity of described multiple subscriber equipment;
If described ratio is greater than described preset value, detect the disturbed condition of operating carriers corresponding to described community.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510638558.7A CN105337715B (en) | 2015-09-30 | 2015-09-30 | It is a kind of based on the carrier wave measurement method of unauthorized frequency range and base station |
| PCT/CN2015/093540 WO2017054288A1 (en) | 2015-09-30 | 2015-10-31 | Carrier measurement method based on unlicensed frequency band, and base station |
Applications Claiming Priority (1)
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| CN201510638558.7A CN105337715B (en) | 2015-09-30 | 2015-09-30 | It is a kind of based on the carrier wave measurement method of unauthorized frequency range and base station |
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Also Published As
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| WO2017054288A1 (en) | 2017-04-06 |
| CN105337715B (en) | 2018-11-06 |
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