CN102833760B - Disturbance restraining method between different system in frequency spectrum share situation and equipment - Google Patents
Disturbance restraining method between different system in frequency spectrum share situation and equipment Download PDFInfo
- Publication number
- CN102833760B CN102833760B CN201110160752.0A CN201110160752A CN102833760B CN 102833760 B CN102833760 B CN 102833760B CN 201110160752 A CN201110160752 A CN 201110160752A CN 102833760 B CN102833760 B CN 102833760B
- Authority
- CN
- China
- Prior art keywords
- cognitive
- community
- frequency range
- transmission power
- maximum transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
- H04W52/244—Interferences in heterogeneous networks, e.g. among macro and femto or pico cells or other sector / system interference [OSI]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/143—Downlink power control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the invention discloses the disturbance restraining method between a kind of different system in frequency spectrum share situation and equipment, by applying the technical scheme of the embodiment of the present invention, limit the descending maximum transmission power of cognitive community in cognitive frequency range and/or up maximum transmission power, thus, effectively can reduce cognitive system and authoring system when sharing frequency spectrum share, interference between two systems, comprise the interference of authoring system to cognitive system down link, cognitive system is to the interference of the uplink and downlink link of authoring system, make cognitive system not disturbing/low disturbed condition under the idle frequency spectrum resource of use authority system, improve the utilization ratio of frequency spectrum, improve link-quality.
Description
Technical field
The present invention relates to communication technical field, the disturbance restraining method particularly between a kind of different system in frequency spectrum share situation and equipment.
Background technology
Along with the development fast of mobile communication cause, growing broadband wireless communications demand and the contradiction of limited spectrum resources become clear day by day, although at LTE(Long Term Evolution, Long Term Evolution) adopt OFDM(Orthogonal Frequency Division Multiplexing, orthogonal frequency division multiplexi), MIMO(Multiple-Input Multiple-Out-put, multiple-input, multiple-output) etc. technology improve the availability of frequency spectrum, but these fundamentally can not solve the problem of limited spectrum resources.
IMT(International Mobile Telecommunication, ternational Mobile Telecommunications) the frequency spectrum service condition of different radio connecting system changes with region in time in frequency range, as with TD-SCDMA(Time Division-Synchronous Code Division Multiple Access, TD SDMA) covering chamber's exterior domain, and TD-LTE(Time Division-Long Term Evolution, time-division Long Term Evolution) covering of hot zones is provided, citing is as office building, be on duty the time, personnel's major part concentrates on office building, TD-LTE load is very heavy, and coming off duty or festivals or holidays, personnel are dispersed in outdoor, TD-SCDMA heavier loads, along with networking, the development of mobile communication technology, operator is also from 2G(2nd Generation, second generation mobile communication system) network is to 3G(3rd Generation, 3-G (Generation Three mobile communication system)), even 4G(4th Generation, forth generation mobile communication system) e-learning quality.Often number of users is fewer at the operation initial stage for new network, and offered load is light, and frequency spectrum is idle, and old offered load is heavier, and frequency spectrum is nervous; After new network maturation, user, gradually to new network transitions, cause old network spectrum idle, and new network spectrum is nervous.
The frequency spectrum resource being applicable to cellular based communication is on the one hand more and more in short supply, the transmission demand of user to data is increasing on the other hand, unconfined is the RAT(Radio Access Technology of overload, wireless access technology) to increase frequency spectrum to expand network capacity be a unpractical problem.Realize sharing flexibly of frequency spectrum by cognitive radio technology and make full use of idle frequency spectrum, operator's frequency spectrum resource pressure in short supply can be alleviated to a great extent.Such as in IMT frequency range, wireless access system IMT-2000 and IMT-Advanced of two kinds of multicarriers, pass through cognitive radio technology, shown in application scenarios as shown in Figure 1, two kinds of access networks can utilize the idle carrier wave of the other side mutually, spectrum utilization efficiency can be improved to a great extent, meet the demand of operator to frequency spectrum resource, alleviate the situation of frequency spectrum resource anxiety.
Owing to can use information by the mutual frequency spectrum that obtains alternately of information between different RATs, particularly for the RATs of single operator inside, this information interaction more easily realizes, and the dynamic conditioning of frequency spectrum resource also more easily carries out.For realizing the frequency spectrum share of different RATs, center control nodes can be adopted to manage concentratedly RATs frequency spectrum service condition in network.In a network by a central control entity JSM(Joint Spectrum Management, cooperation spectrum manages) carry out the function of cognitive radio, specifically as shown in Figure 2.
JSM can collect the idle frequency spectrum information of each RATs, and the relevant Decision of available free frequency range is generated according to network configuration information and frequency spectrum policy, and according to the spectrum requirement of other RAT, idle frequency range can be supplied to other RAT as " cognitive frequency range " and use or regain " cognitive frequency range ".Authorize RAT to have highest priority to " cognitive frequency range ", other RAT above works in " cognitive frequency range " as cognitive RAT; When mandate RAT claims " cognitive frequency range " back, JSM adjusts the cognitive RAT be operated in " cognitive frequency range " and works on to other idle frequency spectrum, and " cognitive frequency range " is returned mandate RAT.Network configuration information comprises the position of each RAT base station, the information such as carrier information, maximum transmission power of configuration, and network configuration information can upgrade according to the network equipment/variation of parameter.
Existing power control mode comprises open Loop Power control and close-loop power control.Open Loop Power control first detects at travelling carriage the base station pilot signals power received, if the signal power that travelling carriage receives is little, shows that on the uplink loss is this moment large, and think that the loss in up link is also large thus.So in order to the channel fading compensating this prediction, travelling carriage also increases transmitting power; Otherwise travelling carriage will reduce transmitting power.And close-loop power control is the means that make up to reverse open Loop Power control inaccuracy, base station is by the measurement to travelling carriage uplink receiving signal, estimation ascending power adjustment amount, at descending notice travelling carriage, travelling carriage is according to the whole uplink transmission power of the power adjustment commands tone of Chinese characters; Otherwise, reduce transmitting power.Equally, downlink power control also adopts these class methods.
Carry out maximum system throughput by packet scheduling in mobile communication system, ensure the fairness of user, to guarantee the quality of service requirement of different business stream as far as possible.The method of scheduling comprises: Round-Robin Algorithm, max carrier to interference algorithm, Proportional-Fair algorithm.What Round-Robin Algorithm circulated calls each user, and namely say from scheduling probability, each user takies Service Source (time slot, code channel, power etc.) with same probability.Max carrier to interference algorithm only selects the user of max carrier to interference, the CU resource transmission data namely allowing channel condition best, after this subscriber channel is deteriorated, then the user selecting other channel best.Proportional-Fair algorithm is maintaining on the roughly fair basis of user's long-term delivery data throughout, considers to utilize short-term channel situation of change to increase efficiency of transmission simultaneously.
In the process realizing the embodiment of the present invention, applicant finds that prior art at least exists following problem:
Frequency spectrum share is realized in communication network, when authoring system Target cell frequency spectrum is idle, this idle frequency spectrum can be used as cognitive frequency range to other system of one's respective area, the system be operated in this cognitive frequency range is thought for cognitive system, because this frequency range of adjacent area, authoring system Target cell may not be in idle condition, the cognitive system of cognitive frequency range can produce interference to adjacent area, authoring system Target cell, thus reduces authoring system link-quality and network capacity.
Existing power control measure and user scheduling strategy are all consider this cellular link quality and network capacity.After introducing spectrum sharing mechanisms, existing power controls and user scheduling strategy can not reduce the interference of cognitive system to authoring system, and authoring system can not be suppressed the interference of cognitive system.Central control entity in a network according to the transmitting power of disturbed condition dynamic conditioning cognitive system suffered by authoring system, thus can not protect the mechanism of authoring system.
Summary of the invention
The embodiment of the present invention provides disturbance restraining method between a kind of different system in frequency spectrum share situation and equipment, solves existing power and to control and user scheduling strategy can not reduce the problem of the mutual interference between cognitive system and authoring system.
For achieving the above object, the embodiment of the present invention provides the disturbance restraining method between a kind of different system in frequency spectrum share situation on the one hand, comprising:
Limit the descending maximum transmission power of cognitive community in cognitive frequency range and/or up maximum transmission power.
On the other hand, the embodiment of the present invention additionally provides a kind of network equipment, at least comprises:
Communication module, communicates for carrying out uplink and downlink with the terminal equipment of described cognitive community, and communicates with authorizing the base station of community;
Limiting module, for limiting described communication module in cognitive frequency range to the descending maximum transmission power of the terminal equipment in described cognitive community and/or up maximum transmission power.
Compared with prior art, the technical scheme that the embodiment of the present invention proposes has the following advantages:
By applying the technical scheme of the embodiment of the present invention, limit the descending maximum transmission power of cognitive community in cognitive frequency range and/or up maximum transmission power, thus, effectively can reduce cognitive system and authoring system when sharing frequency spectrum share, interference between two systems, comprise the interference of authoring system to cognitive system down link, cognitive system is to the interference of the uplink and downlink link of authoring system, make cognitive system not disturbing/low disturbed condition under the idle frequency spectrum resource of use authority system, improve the utilization ratio of frequency spectrum, improve link-quality.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the application scenarios that different system idles carrier wave of the prior art is shared;
Fig. 2 is the application schematic diagram of central control entity (JSM) in prior art;
The application scenarios schematic diagram of the disturbance restraining method between a kind of different system that Fig. 3 embodiment of the present invention proposes in frequency spectrum share situation;
The schematic flow sheet of descending open Loop Power control process is carried out in the cognitive community that Fig. 4 proposes for the embodiment of the present invention in cognitive frequency range;
The schematic flow sheet of downlink closed-loop power control treatment is carried out in the cognitive community that Fig. 5 proposes for the embodiment of the present invention in cognitive frequency range;
The schematic flow sheet of uplink closed loop process is carried out in the cognitive community that Fig. 6 proposes for the embodiment of the present invention in cognitive frequency range;
Fig. 7 is the schematic flow sheet of the disturbance restraining method between the different system under a kind of embody rule scene of embodiment of the present invention proposition in frequency spectrum share situation;
Fig. 8 is the structural representation of a kind of network equipment that the embodiment of the present invention proposes.
Embodiment
As stated in the Background Art, along with the fast development of mobile communication business, telecom operators will face frequency spectrum resource problem in short supply.But the frequency spectrum service condition of the different RAT of wireless communication frequency band changes with region in time, thus cause some RATs spectrum requirement of some region of some time comparatively large, and some RATs frequency relative free of now same area.
Fixing spectrum allocation may policy in a short time and can not change, can realize sharing of frequency spectrum between RATs by cognitive radio technology, improve the utilance of frequency spectrum.
The First Principles of cognitive radio is the protection to authoring system; namely cognitive radio will use idle frequency spectrum resource when not disturbing authoring system on idle frequency spectrum; and authoring system comprises the authoring system of empty spectrum areas and the authoring system of idle frequency spectrum adjacent domain; therefore; the object of the technical scheme that the embodiment of the present invention proposes is exactly the frequency spectrum resource of the authoring system making full use of empty spectrum areas, reduces the interference of the authoring system to adjacent domain simultaneously.
Based on above-mentioned thinking, technical scheme that the embodiment of the present invention proposes to consider in wireless communication frequency band that different RATs utilizes the idle frequency spectrum resource of the other side (be cognitive frequency range for cognitive community) mutually by cognitive radio technology, think that the RAT being operated in cognitive frequency range is cognitive community, then the cognitive community of cognitive frequency range can produce interference to the mandate community of this frequency range adjacent area.
Accordingly, the embodiment of the present invention proposes the disturbance restraining method between the different system between a kind of different system in frequency spectrum share situation in frequency spectrum share situation, under the condition realizing frequency spectrum share between different system with cognitive radio, by limiting the uplink/downlink maximum transmission power of cognitive community in cognitive frequency range, reduce cognitive community to contiguous interference of authorizing the Uplink/Downlink of community, meanwhile, mandate community can also be reduced to the interference of cognitive cellular downlink.
In actual applications; the technical scheme that the embodiment of the present invention proposes also goes for other and has mandate/unauthorized (cognition); major/minor, or in the wireless communication system of priority frequency spectrum share, the change of embody rule scene can't affect protection scope of the present invention.
In the technical scheme of the descending maximum transmission power of the cognitive community of restriction proposed by the invention in cognitive frequency range and/or up maximum transmission power, comprise the restriction of descending maximum transmission power and up maximum transmission power two aspect, be described respectively below.
(1) restriction of the descending maximum transmission power of cognitive community.
In the application scenarios of reality, the restriction of descending maximum transmission power comprises the assignment procedure of initial downlink maximum transmission power further, and the adjustment process of follow-up descending maximum transmission power, is described as follows respectively.
1, the assignment procedure of initial downlink maximum transmission power.
Concrete processing mode is according to being operated in the contiguous edge termination equipment of community of authorizing of cognitive frequency range to the downstream signal power measurement situation of the base station of cognitive community, determining the initial downlink maximum transmission power of cognitive community in cognitive frequency range.
Wherein, it should be noted that, the contiguous determination mode of the edge termination equipment of community of authorizing being operated in cognitive frequency range specifically comprises:
First, select the contiguous mandate community that may affect by cognitive community, then, selected to be operated in multiple terminal equipments of cognitive frequency range as the edge termination equipment of authorizing community by the contiguous community of authorizing selected according to link-quality.
This shows; the actual of edge termination equipment is determined to have come by by the contiguous community of authorizing selected; certainly; due to for cognitive community; the information be actually measured by edge termination equipment of relation; instead of edge termination equipment itself; therefore; the determination mode of concrete edge termination equipment can set according to the actual needs; and complete corresponding deterministic process by contiguous community of authorizing, determine that the content change of mode can't affect protection scope of the present invention.
Based on the deterministic process of above-mentioned edge termination equipment, the assignment procedure of corresponding initial downlink maximum transmission power specifically comprises:
(1) the descending power metrical information of the cognitive community received by each edge termination equipment of the base station transmission of the contiguous mandate community selected is received.
(2) according to the descending power metrical information of cognitive community, the initial downlink maximum transmission power of cognitive community in cognitive frequency range is determined.
Wherein, the deterministic process of initial downlink maximum transmission power adopts open loop transmit power control strategy.
If the size of the descending power metrical information of cognitive community is larger, then the size of the initial downlink maximum transmission power of cognitive community in cognitive frequency range is less, if the size of the descending power metrical information of cognitive community is less, then the size of the initial downlink maximum transmission power of cognitive community in cognitive frequency range is larger.
2, the adjustment process of follow-up descending maximum transmission power.
Concrete processing mode is after starting working with initial downlink maximum transmission power in the base station of cognitive community, authorizing according to being operated in the contiguous of cognitive frequency range the interference measure obtained measured by the edge termination equipment of community, adjusting the descending maximum transmission power of cognitive community in cognitive frequency range.
Equally, based on the deterministic process of aforesaid edge termination equipment, the adjustment process of corresponding follow-up descending maximum transmission power specifically comprises:
(1) interference measure obtained measured by each edge termination equipment of the base station transmission of the contiguous mandate community selected is received.
(2) according to the relation of interference measure and corresponding threshold value, the descending maximum transmission power of cognitive community in cognitive frequency range is adjusted.
Wherein, the adjustment process of descending maximum transmission power adopts purpose of closed loop transmit power control strategy.
Corresponding regulation rule comprises:
If the size of interference measure is greater than most high threshold, then reduce the descending maximum transmission power of cognitive community in cognitive frequency range;
If the size of interference measure is less than minimum threshold, then improve the descending maximum transmission power of cognitive community in cognitive frequency range;
If the size of interference measure, between high threshold and minimum threshold does not then adjust the descending maximum transmission power of cognitive community in cognitive frequency range most.
(2) restriction of the up maximum transmission power of cognitive community.
The execution of this process determines after vicinity authorizes community equally in (one) to be carried out, and concrete foundation is the interfere information measured by base station of contiguous this vicinity mandate community of authorizing community to feed back.
Namely present treatment is after starting working with initial downlink maximum transmission power in the base station of cognitive community, authorize according to being operated in the contiguous of cognitive frequency range the interference measure obtained measured by the base station of community, adjustment is operated in the up maximum transmission power of the terminal equipment of the cognitive community in cognitive frequency range.
Corresponding concrete processing procedure comprises:
(1) interference measure obtained measured by this base station of the base station transmission of the contiguous mandate community selected is received.
(2) according to the relation of interference measure and corresponding threshold value, the up maximum transmission power of the terminal equipment of the cognitive community be operated in cognitive frequency range is adjusted.
Wherein, the adjustment process of up maximum transmission power adopts purpose of closed loop transmit power control strategy.
Corresponding regulation rule comprises:
If the size of interference measure is greater than most high threshold, then reduce the up maximum transmission power of the terminal equipment of the cognitive community be operated in cognitive frequency range;
If the size of interference measure is less than minimum threshold, then improve the up maximum transmission power of the terminal equipment of the cognitive community be operated in cognitive frequency range;
If the size of interference measure, between high threshold and minimum threshold does not then adjust the up maximum transmission power of the terminal equipment of the cognitive community be operated in cognitive frequency range most.
It is further noted that, the adjustment process of the follow-up descending maximum transmission power in above-mentioned (), and involved contiguous interference measure of authorizing the base station of community to send in process in (two), it can be concrete measured parameter value, also can be the data message after changing according to the rule preset, the reason of such process is, the technical program carries out the numerical values recited that the corresponding foundation limiting adjustment is not concrete interference measure, but whether corresponding interference affects the normal work of authorizing community, therefore, corresponding interference threshold value can be set, if measured concrete measured parameter value has exceeded interference threshold value, then report an information to represent and exceed interference threshold value, otherwise, one is then reported to represent the information not exceeding interference threshold value, then, information according to receiving is added up, if exceed the situation of interference threshold value too much (namely above-mentioned be greater than most high threshold), then represent that current interference is excessively strong, corresponding upstream or downstream maximum transmission power should be reduced, if the situation exceeding interference threshold value very few (namely above-mentioned be less than minimum threshold), then represent that current interference is smaller, tolerable interference margins is also larger, corresponding upstream or downstream maximum transmission power can be improved, if be not above situation, then represent that current interference ratio is more moderate, the upstream or downstream maximum transmission power restriction that can keep current does not adjust.
Above-mentioned which kind of scheme of embody rule can adjust according to actual needs, and such change does not affect protection scope of the present invention.
It is further noted that; in the operation of reality; above-mentioned processing procedure specifically can be performed by the base station of central control entity or cognitive community; the selection of concrete executive agent can be determined according to the situation that real system structure is disposed and function is distributed, and such change does not affect protection scope of the present invention.
On the other hand, above-mentioned cognitive frequency range is specially in authoring system not by the idle frequency range used.
It is to be noted; the restriction of above-mentioned descending maximum transmission power and up maximum transmission power two aspect can independently be applied in concrete technology scene; also can jointly be applied to increase the control effects of interference in concrete technology scene, such change can't affect protection scope of the present invention.
Compared with prior art, the technical scheme that the embodiment of the present invention proposes has the following advantages:
By applying the technical scheme of the embodiment of the present invention, limit the descending maximum transmission power of cognitive community in cognitive frequency range and/or up maximum transmission power, thus, effectively can reduce cognitive system and authoring system when sharing frequency spectrum share, interference between two systems, comprise the interference of authoring system to cognitive system down link, cognitive system is to the interference of the uplink and downlink link of authoring system, make cognitive system not disturbing/low disturbed condition under the idle frequency spectrum resource of use authority system, improve the utilization ratio of frequency spectrum, improve link-quality.
Below, in conjunction with concrete application scenarios, the technical scheme that the embodiment of the present invention proposes is described.
First by concrete exemplary scene, problems of the prior art are described as follows:
TD-LTE and TD-SCDMA colocation site is with covering, two kinds of access technologies all adopt multi-carrier mode, due to the new and old transition of network, there is idle carrier resource in TD-SCDMA, TD-LTE is at overload, can utilize the idle carrier wave of TD-SCDMA community under colocation site by cognitive techniques TD-LTE thus improve TD-LTE network capacity, and this carrier wave of contiguous TD-SCDMA community is not in idle condition.
Descending aspect, the TD-LTE down link being operated in the idle carrier wave frequency range of TD-SCDMA is subject to the interference of contiguous base station, TD-SCDMA co-frequency cell, and contiguous TD-SCDMA cellular downlink is subject to the interference of the TD-LTE base station being operated in idle frequency range, descending interference is even more serious at cell edge; Up aspect, the TD-LTE up link being operated in idle frequency range is subject to the interference of contiguous TD-SCDMA co-frequency cell edge termination, and contiguous base station, TD-SCDMA co-frequency cell is subject to the interference of the TD-LTE edge termination being operated in idle frequency range.
This shows, existing power control measure and user scheduling strategy are all consider this cellular link quality and network capacity.After introducing spectrum sharing mechanisms, existing power controls and user scheduling strategy can not reduce cognitive community to the mutual interference of authorizing between community, can not suppress to authorize community to the interference of cognitive community.Central control entity in a network according to the transmitting power of disturbed condition dynamic conditioning cognitive system suffered by authoring system, thus can not protect the mechanism of authoring system.
The technical scheme that the embodiment of the present invention proposes mainly in order to solve above-mentioned realize frequency spectrum share situation by cognitive radio technology under, authorize the AF panel problem between community and cognitive community, concrete technical thought is by carrying out maximum power constraint to cognitive community in the descending/up of cognitive frequency range, reduces the uplink/downlink interference between the different system that causes due to frequency spectrum share.
As shown in Figure 3, for TD network, if TD-SCDMA and TD-LTE frequency spectrum share, the TD-LTE community with region uses the idle carrier resource of TD-SCDMA community, think that Liang Ge community is respectively target TD-LTE community and target TD-SCDMA community, this idle carrier resource is cognitive frequency range.
According to the technical scheme of the embodiment of the present invention, corresponding processing scheme comprises:
Target TD-LTE community reduces its maximum transmission power in cognitive frequency range, reduces its covering radius, thus, effectively can reduce the dl interference of the TD-SCDMA edge customer to adjacent area, Target cell.
The processing mode of such scheme, namely by limiting the uplink and downlink maximum power of cognitive community in cognitive frequency range, protects cognitive frequency range with this to authorize cell uplink and down link with the vicinity frequently worked.In concrete enforcement scene, according to the difference of adopted power control mode, corresponding processing procedure comprises following three parts:
Part I, cognitive community are in the descending open Loop Power control of cognitive frequency range.
As shown in Figure 4, corresponding processing procedure comprises concrete processing procedure:
The base station selected contiguous mandate community that may affect by cognitive community of step S401, cognitive community.
Step S402, by the contiguous edge termination equipment of N number of terminal equipment as this mandate community of authorizing community to select to be operated in cognitive frequency range according to link-quality selected.
Step S403, by the contiguous down-bound pilot frequency signal of authorizing community to trigger the cognitive community of above-mentioned N number of edge termination device measuring selected, estimate the path loss between the base station of cognitive community and above-mentioned edge termination equipment, and path loss estimated value and edge termination equipment are sent to the base station of cognitive community at the interference level of this time period.
Fusion treatment is carried out to the result received in the base station of step S404, cognitive community.
It is to be noted, in the application scenarios of reality, above-mentioned step S403 and the processing procedure of step S404 are actually the base station of authorizing the base station of community the interferometry information of edge termination and positional information directly to be reported cognitive community, afterwards, the corresponding information received can be carried out the calculation process of correspondence by the base station of cognitive community, namely determine to be distributed in edge termination in each position range current the actual disturbed condition born, the method of concrete calculation process can be the position range determining residing for corresponding edge termination according to concrete circuit loss value, then, in each position range, current the born average interference situation of corresponding edge termination is calculated by concrete algorithm, in the process, the setting rule of position range, and the content of the computational algorithm of average interference situation can set according to the actual needs, such change does not affect protection scope of the present invention.
On the other hand, consider the volume of transmitted data between base station and the base station of cognitive community of authorizing community, and when employing such scheme, the processing load of the base station of cognitive community, the calculation process of correspondence can be carried out by the corresponding information of authorizing the base station edge terminal of community to report, namely by authorize the base station of community to determine to be distributed in the edge termination in each position range current the actual disturbed condition born, and the result of corresponding calculation process is sent to the base station of cognitive community, certainly, in order to reduce volume of transmitted data further, can configure on the base station of authorizing community and report threshold value accordingly, only in concrete position range, the order of severity of disturbed condition exceedes when reporting threshold value accordingly, just corresponding disturbed condition is reported the base station of cognitive community, or directly corresponding position range is reported the base station of cognitive community, the corresponding descending maximum transmission power of the base station of cognitive community to relevant position scope is limited.
Above-mentioned processing scheme can set according to actual needs; every scheme that the base station of cognitive community can be made to know the position range that limit descending maximum transmission power all can be applied in the embodiment of the present invention, and such change does not affect protection scope of the present invention.
The base station of step S405, cognitive community, according to the path loss situation merged and interference level, calculates the interference of authorizing the terminal equipment of community to bear, thus determines the descending maximum transmission power of cognitive community in cognitive frequency range.
Step S406, cognitive community cognitive frequency range using above-mentioned descending maximum transmission power as cognitive community the initial downlink maximum transmission power in cognitive frequency range, carry out downstream signal launch process.
From illustrating above, the processing procedure of above-mentioned Part I is to determine the initial downlink maximum transmission power of cognitive community in cognitive frequency range.
Part II, cognitive community control at the downlink closed-loop power of cognitive frequency range.
The process of this part determines cognitive community at Part I to carry out after the down initial maximum transmission power of cognitive frequency range, and as shown in Figure 5, corresponding processing procedure comprises concrete processing procedure:
Step S501, regularly triggered above-mentioned N number of edge termination device measuring dl interference situation by the contiguous community of authorizing selected, and interference measure is compared with thresholding, and comparative result is sent to the base station of cognitive community with 1bit information.
In concrete enforcement scene, rule is reported to be accordingly:
Interference measure > thresholding, then report 1;
Interference measure < thresholding, then report 0.
The base station of step S502, cognitive community is to the summation of interference reported result.
If summing value > thresholding A, then perform step S503;
If summing value < thresholding B, then perform step S504;
If thresholding A< summing value < thresholding B, then perform step S505.
Concrete; above-mentioned processing procedure is a kind of concrete scheme that the embodiment of the present invention proposes; the numerical information specifically reported; and the corresponding summing mode just a kind of preferred exemplary provided for convenience of explanation; as long as cognitive community can be made to determine whether to trigger the restriction operation of corresponding descending maximum transmission power; concrete reports the change with judgment rule, can't affect protection scope of the present invention.
The cognitive community of base station triggers of step S503, cognitive community reduces a grade at the descending maximum transmission power of cognitive frequency range.
The base station of step S504, cognitive community allows cognitive community to improve a grade at the descending maximum transmission power of cognitive frequency range.
The base station of step S505, cognitive community does not adjust the descending emission maximum of cognitive community in cognitive frequency range.
As can be seen from above explanation, the object of the process of this part is that the actual conditions current according to system adjust the descending maximum transmission power of cognitive community in cognitive frequency range.
Situation three, cognitive community are in the uplink closed loop of cognitive frequency range.
The process of this part is carried out after Part I determines contiguous mandate community, and namely at least after step S401 completes, just can start corresponding process, as shown in Figure 6, corresponding processing procedure comprises concrete processing procedure:
Step S601, by the contiguous base station measurement uplink channel interference situation of authorizing community selected, and interference measure to be compared with thresholding, and comparative result is sent to the base station of cognitive community with 1bit information.
In concrete enforcement scene, rule is reported to be accordingly:
Interference measure > thresholding, then report 1;
Interference measure < thresholding, then report 0.
The base station of step S602, cognitive community is to the summation of interference reported result.
If summing value > thresholding C, then perform step S603;
If summing value < thresholding D, then perform step S604;
If thresholding C< summing value < thresholding D, then perform step S605.
Concrete; above-mentioned processing procedure is a kind of concrete scheme that the embodiment of the present invention proposes; the numerical information specifically reported; and the corresponding summing mode just a kind of preferred exemplary provided for convenience of explanation; as long as cognitive community can be made to determine whether to trigger the restriction operation of corresponding up maximum transmission power; concrete reports the change with judgment rule, can't affect protection scope of the present invention.
The up maximum transmission power that the base station triggers of step S603, cognitive community is operated in the cognitive cell terminal equipment of cognitive frequency range reduces a grade.
The base station of step S604, cognitive community allows the up maximum transmission power of the cognitive cell terminal equipment being operated in cognitive frequency range to improve a grade.
The base station of step S605, cognitive community does not adjust the up emission maximum of the cognitive cell terminal equipment being operated in cognitive frequency range.
As can be seen from above explanation, the object of the process of this part is to adjust according to the up maximum transmission power of interference measure to the cognitive cell terminal equipment being operated in cognitive frequency range of reality.
It is further noted that; the processing procedure of three kinds of above-mentioned situations is all realized by the base station of cognitive community; but; in the application scenarios of reality; also above-mentioned process can be realized by central control entity (JSM); the executive agent of corresponding function is just changed by this, and the particular content for technical scheme is gone forward side by side Row sum-equal matrix, and such change does not affect protection scope of the present invention.
It should be noted that, above-mentioned contiguous concept of authorizing community to be different from adjacent cell in existing network, need the strict covering considering community, transmitting power, antenna performance determines this neighboring BS relationship.
Further, based on the application scenarios comprising central control entity (JSM), above-mentioned technical scheme is described, consider that colocation site is with the frequency spectrum share between the TD-LTE covered and TD-SCDMA network, the distribution of idle carrier wave is realized (in actual applications by JSM in network, if there is not JSM in network system, then performed the correlation function process of JSM by the base station of cognitive community), and suppose that TD-LTE utilizes the idle carrier resource of TD-SCDMA, the TD-SCDMA community that there is idle carrier wave is target TD-SCDMA community, based on above-mentioned enforcement scene, the technical scheme that the embodiment of the present invention proposes as shown in Figure 7, specifically comprise the following steps:.
Step S701, JSM collect the frequency spectrum service condition of TD-LTE and TD-SCDMA, analyze available idle frequency spectrum resource.
If step S702 JSM determines certain regional aim there is idle carrier wave in TD-SCDMA, and with the target TD-LTE heavier loads in region, whether JSM evaluating objects TD-LTE can utilize the idle carrier resource of target TD-SCDMA.
If of course, then perform step S703;
If cannot, then process ends.
Step S703, JSM trigger in the contiguous TD-SCDMA community by the target TD-SCDMA of potential interference and are operated in above-mentioned idle carrier wave frequency range up RSCP estimation path loss, and the N number of terminal equipment selecting path loss maximum is as cell-edge terminals equipment.
Step S704, contiguous TD-SCDMA base station trigger the down-bound pilot frequency signal of above-mentioned N number of cell-edge terminals device measuring target TD-LTE, thus estimation path loss, meanwhile, this N number of terminal equipment reports nearest interference measure, and path loss estimated value and interference measure are uploaded to JSM by base station.
Minimum path loss estimated value in step S705, JSM selection reported result and maximum interference measured value, and calculate the descending interference can also born at present of contiguous TD-SCDMA, thus estimation target TD-LTE is at the maximum transmission power of cognitive frequency range.
Step S706, JSM configure this target TD-LTE, make TD-LTE generate auxiliary carrier wave in cognitive frequency range, and its maximum transmission power is by above-mentioned Power Limitation.
The assignment procedure of step S703 to step S706 and aforesaid initial downlink maximum transmission power.
ISCP, at the terminal equipment statistics down link ISCP of N number of cell edge of above-mentioned idle frequency range, compares with thresholding, regularly measurement result is reported JSM with 1bit by step S707, contiguous TD-SCDMA cell operation.
If ISCP value > thresholding, then report 1;
Otherwise, if ISCP value < thresholding, then report 0.
In concrete enforcement scene, threshold value is x times of the ISCP value of long-time statistical.
Step S708, JSM to the summation of interference reported result, and carry out corresponding process according to summing value to the magnitude relationship of respective doors limit value.
If summing value > thresholding A, then trigger target TD-LTE reduces cognitive frequency range and falls row maximum transmission power grade, if summing value < thresholding B, target TD-LTE is then allowed to improve cognitive frequency range maximum transmission power grade, otherwise transmitting power does not adjust.
The adjustment process of step S707 and step S708 and aforesaid follow-up descending maximum transmission power.
Step S709, contiguous TD-SCDMA base station measure the up ISCP of above-mentioned idle frequency range, and carry out corresponding process according to measured value to the magnitude relationship of respective doors limit value.
If the ISCP> thresholding C of a period of time, then the terminal of the cognitive frequency range of trigger target TD-LTE reduces transmitting power grade, if ISCP< thresholding D, the terminal of the cognitive frequency range of target TD-LTE is then allowed to improve transmitting power grade, otherwise, power is not adjusted.
The restriction processing procedure of the up maximum transmission power of step S709 and aforesaid cognitive community.
It is to be noted; the adjustment process of the follow-up descending maximum transmission power described by step S707 and step S708; and the restriction processing procedure of up maximum transmission power described by step S709 is two relatively independent processes; it is the processing procedure after initial downlink maximum transmission power has set and has been employed; there is no inevitable sequencing; the above-mentioned needs just mark provided for convenience of explanation, can't affect protection scope of the present invention.
Compared with prior art, the technical scheme that the embodiment of the present invention proposes has the following advantages:
By applying the technical scheme of the embodiment of the present invention, limit the descending maximum transmission power of cognitive community in cognitive frequency range and/or up maximum transmission power, thus, effectively can reduce cognitive system and authoring system when sharing frequency spectrum share, interference between two systems, comprise the interference of authoring system to cognitive system down link, cognitive system is to the interference of the uplink and downlink link of authoring system, make cognitive system not disturbing/low disturbed condition under the idle frequency spectrum resource of use authority system, improve the utilization ratio of frequency spectrum, improve link-quality.
In order to realize the technical scheme of the embodiment of the present invention, the embodiment of the present invention additionally provides a kind of network equipment, and its structural representation as shown in Figure 8.
In concrete enforcement scene, the terminal equipment that this network equipment is specifically as follows in cognitive community provides service, is the base station of cognitive community, or, this network equipment also can be this cognitive community corresponding and contiguous central control entity of authorizing community, and this network equipment at least comprises:
Communication module 81, communicates for carrying out uplink and downlink with the terminal equipment of cognitive community, and communicates with authorizing the base station of community;
Limiting module 82, for limiting telecommunication module 81 in cognitive frequency range to the descending maximum transmission power of the terminal equipment in cognitive community and/or up maximum transmission power.
Wherein, communication module 81, specifically for:
Receive the descending power metrical information of contiguous cognitive community received by each edge termination equipment of authorizing the base station of community to send, and this vicinity authorizes the interference measure obtained measured by the base station of community;
According to the determined descending maximum transmission power of limiting module 82, carry out downlink communication with the terminal equipment of cognitive community.
Further, limiting module 82, specifically for:
According to the descending power metrical information of the cognitive community that communication module 81 receives, determine the initial downlink maximum transmission power of cognitive community in cognitive frequency range;
After communication module 81 is started working with initial downlink maximum transmission power, the interference measure obtained measured by each edge termination equipment received by communication module 81, the descending maximum transmission power of adjustment communication module 81 in cognitive frequency range.
On the other hand, limiting module 82, also authorizes the interference measure obtained measured by the base station of community for this vicinity received by communication module 81, adjustment is operated in the up maximum transmission power of the terminal equipment of the cognitive community in cognitive frequency range.
Compared with prior art, the technical scheme that the embodiment of the present invention proposes has the following advantages:
By applying the technical scheme of the embodiment of the present invention, limit the descending maximum transmission power of cognitive community in cognitive frequency range and/or up maximum transmission power, thus, effectively can reduce cognitive system and authoring system when sharing frequency spectrum share, interference between two systems, comprise the interference of authoring system to cognitive system down link, cognitive system is to the interference of the uplink and downlink link of authoring system, make cognitive system not disturbing/low disturbed condition under the idle frequency spectrum resource of use authority system, improve the utilization ratio of frequency spectrum, improve link-quality.
Through the above description of the embodiments, those skilled in the art can be well understood to the embodiment of the present invention can by hardware implementing, and the mode that also can add necessary general hardware platform by software realizes.Based on such understanding, the technical scheme of the embodiment of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions and perform each method implementing described in scene of the embodiment of the present invention in order to make a computer equipment (can be personal computer, server, or network equipment etc.).
It will be appreciated by those skilled in the art that accompanying drawing is a schematic diagram preferably implementing scene, the module in accompanying drawing or flow process might not be that the enforcement embodiment of the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device implemented in scene can carry out being distributed in the device of enforcement scene according to implementing scene description, also can carry out respective change and being arranged in the one or more devices being different from this enforcement scene.The module of above-mentioned enforcement scene can merge into a module, also can split into multiple submodule further.
The invention described above embodiment sequence number, just to describing, does not represent the quality implementing scene.
Be only the several concrete enforcement scene of the embodiment of the present invention above, but the embodiment of the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into the business limited field of the embodiment of the present invention.
Claims (10)
1. the disturbance restraining method between different system in frequency spectrum share situation, is characterized in that, at least comprises the following steps:
Limit the descending maximum transmission power of cognitive community in cognitive frequency range and/or up maximum transmission power;
Wherein, the descending maximum transmission power of the cognitive community of described restriction in cognitive frequency range, specifically comprises:
According to being operated in the contiguous edge termination equipment of community of authorizing of cognitive frequency range to the downstream signal power measurement situation of the base station of described cognitive community, determine the initial downlink maximum transmission power of described cognitive community in cognitive frequency range;
After starting working with described initial downlink maximum transmission power in the base station of described cognitive community, authorizing according to being operated in the contiguous of cognitive frequency range the interference measure obtained measured by the edge termination equipment of community, adjusting the descending maximum transmission power of described cognitive community in cognitive frequency range;
The up maximum transmission power of the cognitive community of described restriction in cognitive frequency range, specifically comprises:
After starting working with described initial downlink maximum transmission power in the base station of described cognitive community, authorize according to being operated in the contiguous of cognitive frequency range the interference measure obtained measured by the base station of community, adjustment is operated in the up maximum transmission power of the terminal equipment of the described cognitive community in cognitive frequency range.
2. the method for claim 1, is characterized in that, described in be operated in the contiguous determination mode of authorizing the edge termination equipment of community of cognitive frequency range, specifically comprise:
The contiguous mandate community that selection may affect by described cognitive community;
The edge termination equipment of multiple terminal equipments as described mandate community of cognitive frequency range is operated according to link-quality selection by the contiguous community of authorizing selected.
3. method as claimed in claim 2, it is characterized in that, described basis is operated in the contiguous edge termination equipment of community of authorizing of cognitive frequency range to the downstream signal power measurement situation of the base station of described cognitive community, determine the initial downlink maximum transmission power of described cognitive community in cognitive frequency range, specifically comprise:
Receive the descending power metrical information of the described cognitive community received by described each edge termination equipment of being authorized the base station transmission of community by the vicinity selected;
According to the descending power metrical information of described cognitive community, determine the initial downlink maximum transmission power of described cognitive community in cognitive frequency range;
Wherein, the deterministic process of described initial downlink maximum transmission power adopts open loop transmit power control strategy, if the size of the descending power metrical information of described cognitive community is larger, then the size of the initial downlink maximum transmission power of described cognitive community in cognitive frequency range is less, if the size of the descending power metrical information of described cognitive community is less, then the size of the initial downlink maximum transmission power of described cognitive community in cognitive frequency range is larger.
4. method as claimed in claim 2, it is characterized in that, described basis is operated in the contiguous of cognitive frequency range and authorizes the interference measure obtained measured by the edge termination equipment of community, adjusts the descending maximum transmission power of described cognitive community in cognitive frequency range, specifically comprises:
Receive the described interference measure obtained measured by contiguous each edge termination equipment of authorizing the base station of community to send of selecting;
According to the relation of described interference measure and corresponding threshold value, the descending maximum transmission power of described cognitive community in cognitive frequency range is adjusted;
Wherein, the adjustment process of described descending maximum transmission power adopts purpose of closed loop transmit power control strategy, if the size of described interference measure is greater than most high threshold, then reduce the descending maximum transmission power of described cognitive community in cognitive frequency range, if the size of described interference measure is less than minimum threshold, then improve the descending maximum transmission power of described cognitive community in cognitive frequency range, if the size of described interference measure is most between high threshold and minimum threshold, then the descending maximum transmission power of described cognitive community in cognitive frequency range is not adjusted.
5. the method for claim 1, it is characterized in that, described basis is operated in the contiguous of cognitive frequency range and authorizes the interference measure obtained measured by the base station of community, and adjustment is operated in the up maximum transmission power of the terminal equipment of the described cognitive community in cognitive frequency range, specifically comprises:
Receive the interference measure obtained measured by the described base station of the base station transmission of the contiguous mandate community selected;
According to the relation of described interference measure and corresponding threshold value, the up maximum transmission power of the terminal equipment of the described described cognitive community be operated in cognitive frequency range is adjusted;
Wherein, the adjustment process of described up maximum transmission power adopts purpose of closed loop transmit power control strategy, if the size of described interference measure is greater than most high threshold, the up maximum transmission power of the terminal equipment of the described cognitive community in cognitive frequency range is operated in described in then reducing, if the size of described interference measure is less than minimum threshold, the up maximum transmission power of the terminal equipment of the described cognitive community in cognitive frequency range is operated in described in then improving, if the size of described interference measure is most between high threshold and minimum threshold, then the up maximum transmission power of the terminal equipment of the described described cognitive community be operated in cognitive frequency range is not adjusted.
6. as the method in claim 1 to 5 as described in any one, it is characterized in that, the descending maximum transmission power of the cognitive community of described restriction in cognitive frequency range and/or up maximum transmission power are specifically performed by the base station of central control entity or described cognitive community.
7. as the method in claim 1 to 5 as described in any one, it is characterized in that, described cognitive frequency range, is specially:
Not by the idle frequency range used in authoring system.
8. a network equipment, is characterized in that, at least comprises:
Communication module, communicates for carrying out uplink and downlink with the terminal equipment of cognitive community, and communicates with authorizing the base station of community;
Limiting module, for limiting described communication module in cognitive frequency range to the descending maximum transmission power of the terminal equipment in described cognitive community and/or up maximum transmission power;
Wherein, described limiting module, specifically for:
According to the descending power metrical information of the described cognitive community that described communication module receives, determine the initial downlink maximum transmission power of described cognitive community in cognitive frequency range;
After described communication module is started working with described initial downlink maximum transmission power, the interference measure obtained measured by each edge termination equipment received by described communication module, adjusts the descending maximum transmission power of described communication module in cognitive frequency range;
Described limiting module, also for:
The interference measure obtained measured by the base station of the contiguous mandate community received by described communication module, adjustment is operated in the up maximum transmission power of the terminal equipment of the described cognitive community in cognitive frequency range.
9. the network equipment as claimed in claim 8, is characterized in that, described communication module, specifically for:
Receive the descending power metrical information of contiguous described cognitive community received by each edge termination equipment of authorizing the base station of community to send, and described vicinity authorizes the interference measure obtained measured by the base station of community;
According to the determined descending maximum transmission power of described limiting module, carry out downlink communication with the terminal equipment of described cognitive community.
10. as the network equipment in claim 8 to 9 as described in any one, it is characterized in that, be specially:
The base station of described cognitive community; Or,
Corresponding described cognitive community and described contiguous central control entity of authorizing community.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110160752.0A CN102833760B (en) | 2011-06-15 | 2011-06-15 | Disturbance restraining method between different system in frequency spectrum share situation and equipment |
| PCT/CN2012/073047 WO2012171386A1 (en) | 2011-06-15 | 2012-03-26 | Interference suppression method and device for inter-system frequency spectrum sharing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110160752.0A CN102833760B (en) | 2011-06-15 | 2011-06-15 | Disturbance restraining method between different system in frequency spectrum share situation and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102833760A CN102833760A (en) | 2012-12-19 |
| CN102833760B true CN102833760B (en) | 2015-08-12 |
Family
ID=47336666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110160752.0A Active CN102833760B (en) | 2011-06-15 | 2011-06-15 | Disturbance restraining method between different system in frequency spectrum share situation and equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102833760B (en) |
| WO (1) | WO2012171386A1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104105185B (en) * | 2013-04-03 | 2018-11-27 | 电信科学技术研究院 | Transmission power control method, apparatus and system in device-to-device communication |
| CN105532044B (en) * | 2013-07-31 | 2019-05-28 | 华为技术有限公司 | The sending, receiving method and device of data frame |
| CN104010313A (en) * | 2014-01-13 | 2014-08-27 | 浙江工业大学 | Cooperation interference-resistant frequency spectrum access method based on Nash game theory |
| US10004084B2 (en) | 2014-01-21 | 2018-06-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and apparatuses for coordinating resource scheduling between wireless networks |
| WO2015109441A1 (en) | 2014-01-21 | 2015-07-30 | Telefonaktiebolaget L M Ericsson (Publ) | Methods and apparatuses for coordinating resource scheduling between wireless networks |
| US10285064B2 (en) | 2014-04-09 | 2019-05-07 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for coordinating resources between different networks |
| WO2016161633A1 (en) * | 2015-04-10 | 2016-10-13 | 华为技术有限公司 | Wireless network communication method and access point device |
| CN107005852B (en) * | 2015-09-09 | 2020-02-14 | 华为技术有限公司 | Access network device, terminal device, data transmission method and system |
| CN109951852B (en) * | 2017-12-20 | 2021-08-13 | 华为技术有限公司 | Signal processing method, device and system |
| CN110032060B (en) * | 2018-01-11 | 2022-05-17 | 西门子能源有限公司 | Process control method, process control device, and storage medium |
| CN109068332B (en) * | 2018-09-26 | 2022-10-25 | 中国联合网络通信集团有限公司 | Data transmission method and device |
| CN112584501B (en) * | 2019-09-29 | 2022-05-31 | 成都鼎桥通信技术有限公司 | Unidirectional frequency band pairing processing method and device, base station equipment and readable storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101779503A (en) * | 2007-08-10 | 2010-07-14 | 高通股份有限公司 | Adaptation of transmit power based on channel quality |
| CN102006124A (en) * | 2009-08-28 | 2011-04-06 | 华为技术有限公司 | Spectrum forecasting method, device and system |
| CN102017465A (en) * | 2008-05-08 | 2011-04-13 | 三星电子株式会社 | Apparatus and method for enquiring channel condition information in cognitive radio wireless communication system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI444010B (en) * | 2007-12-06 | 2014-07-01 | Koninkl Philips Electronics Nv | Channel management method in a distributed spectrum cognitive radio network |
-
2011
- 2011-06-15 CN CN201110160752.0A patent/CN102833760B/en active Active
-
2012
- 2012-03-26 WO PCT/CN2012/073047 patent/WO2012171386A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101779503A (en) * | 2007-08-10 | 2010-07-14 | 高通股份有限公司 | Adaptation of transmit power based on channel quality |
| CN102017465A (en) * | 2008-05-08 | 2011-04-13 | 三星电子株式会社 | Apparatus and method for enquiring channel condition information in cognitive radio wireless communication system |
| CN102006124A (en) * | 2009-08-28 | 2011-04-06 | 华为技术有限公司 | Spectrum forecasting method, device and system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012171386A1 (en) | 2012-12-20 |
| CN102833760A (en) | 2012-12-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102833760B (en) | Disturbance restraining method between different system in frequency spectrum share situation and equipment | |
| CN102843697B (en) | Disturbance restraining method between different system in frequency spectrum share situation and equipment | |
| Hanly | An algorithm for combined cell-site selection and power control to maximize cellular spread spectrum capacity | |
| US10055682B2 (en) | Self-optimizing deployment cascade control scheme and device based on TDMA for indoor small cell in interference environments | |
| EP2011247B1 (en) | Power control in a wireless system having multiple interfering communication resources | |
| CN101455045B (en) | Method for scheduling user equipment in wireless communication network and a base station | |
| US20040160923A1 (en) | Mobile communication system, base station, radio network controller, and resource allocation control method used therefor | |
| WO2008003815A1 (en) | Improved radio resource allocation mechanism | |
| KR20040074015A (en) | Scheduling apparatus and method in a cdma mobile communication system | |
| US20100216405A1 (en) | System and method for interference reduction in self-optimizing networks | |
| CN103596258A (en) | A power control method and a base station | |
| EP2876936B1 (en) | Method and node b for determining cell switching | |
| Chae et al. | Optimal access in OFDMA multi-RAT cellular networks with stochastic geometry: Can a single RAT be better? | |
| WO2012146605A1 (en) | Load-aware dynamic cell selection with interference coordination by fractional reuse for cellular multi-user networks | |
| EP1872485B1 (en) | Method and apparatus relating to power control | |
| CN102291832B (en) | Co-time-slot scheduling method and device of E-PUCH and other channels | |
| KR100638702B1 (en) | Determination of code transmit power range in downlink power control for cellular systems | |
| Wang et al. | Adaptive and predictive downlink resource management in next-generation CDMA networks | |
| Ibrahim et al. | Network-centric joint radio resource policy in heterogeneous WiMAX-UMTS networks for streaming and elastic traffic | |
| CN101340264B (en) | Method and system for optimal allocation of uplink transmission power in communication networks | |
| KR101241909B1 (en) | Method For Modified Fractional Power Control | |
| Yoshizaki et al. | Enhanced inter-cell carrier aggregation with spread spectrum technique for next generation mobile systems | |
| Phasouliotis et al. | Energy-efficient user grouping algorithms for power minimisation in multi-carrier code division multiple access systems | |
| Borgonovo et al. | The impact of signal strength measures on the efficiency of dynamic channel allocation techniques | |
| Du et al. | An interference-aware resource allocation scheme for self-organizing heterogeneous networks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210607 Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
|
| TR01 | Transfer of patent right |