CN104363599A - Method and device applied to permission-free frequency band multi-system coexisting - Google Patents
Method and device applied to permission-free frequency band multi-system coexisting Download PDFInfo
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- CN104363599A CN104363599A CN201410698483.7A CN201410698483A CN104363599A CN 104363599 A CN104363599 A CN 104363599A CN 201410698483 A CN201410698483 A CN 201410698483A CN 104363599 A CN104363599 A CN 104363599A
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
Abstract
The invention discloses a method applied to permission-free frequency band multi-system coexisting. The method mainly comprises the steps that the number of monitoring subframes occupied by a data packet transmitted by a first communication system is determined through monitoring of a specific number of monitoring subframe; according to the specific number and the number of the occupied monitoring subframes, the proportion of monitoring subframes and sent data subframes in a wireless frame is adjusted. The method can solve the problems of interference restraint and coordination of multiple systems on a permission-free frequency band can be solved, and then coexisting of the multiple systems of the permission-free frequency band can be achieved. The invention further provides a device applied to permission-free frequency band multi-system coexisting.
Description
Technical field
The application relates to communication technical field, particularly relates to a kind ofly to be applied to the method and device of exempting from licensed band condition of multi-system coexistence.
Background technology
Exempt from licensed band, industrial scientific medical frequency range (Industrial Scientific and Medical can be referred to, ISM), wireless information transmission equipment frequency range (Unlicensed National Information Infrastructure, UNII) and TV white spaces etc.
If by LTE (Long Term Evolution, 3GPP Long Term Evolution) Account Dept is deployed to and exempts from licensed band, can increase the application of the resource of frequency range of LTE, but LTE system must with the other system of exempting from licensed band coexists at these.
With above-mentioned other system for Wireless Fidelity (Wireless-Fidelity, Wi-Fi) system is example, exempting from licensed band shares a certain resource of frequency range to make LTE system and Wi-Fi system, namely same transmission channel is shared, LTE system self can be adopted to abdicate time resource to Wi-Fi system, the time resource that Wi-Fi system can be abdicated in LTE system carries out the mode of the transmission of packet.
Specifically, LTE system can change Subframe Allocation Pattern, utilizes almost blank subframe (Almost Blank Subframe, the ABS) distribution in subframe revised, makes Wi-Fi system in these subframes, be carried out the transmission of packet.Wi-Fi system itself is the system with avoidance mechanism, all can first sounding channel energy before transmission packet, when only detecting channel energy lower than a threshold value, and when after Wi-Fi system wait one section of random time, channel energy is still lower than threshold value, just can think channel " free time ", so now Wi-Fi system can transmit packet.And LTE system does not exist avoidance mechanism, therefore Wi-Fi system and LTE system are shared when exempting from licensed band can detect channel energy higher than threshold value always, thus are in backoff state always, do not send packet.The almost blank frame revised is introduced in the subframe structure of LTE system, namely LTE system does not carry out the transmission of packet in these subframes, thus make channel energy lower than the detection threshold of Wi-Fi system, thus Wi-Fi system can carry out the transmission of packet in these subframes.
The shortcoming of this shared mechanism coexistence mechanism is that the Subframe Allocation Pattern of LTE system is fixing, and flexibility is poor, thus cannot realize exempting from multisystem AF panel and coordination in licensed band, and then can not realize condition of multi-system coexistence.
Summary of the invention
The embodiment of the present application provides a kind of and is applied to the method exempted from licensed band multisystem and share, and in order to solve the problem of multisystem in the AF panel of exempting from licensed band and coordination, and then coexisting of licensed band multisystem is exempted from realization.
The embodiment of the present application also provides a kind of and is applied to the device of exempting from licensed band multisystem and sharing, and in order to can solve the problem of multisystem in the AF panel of exempting from licensed band and coordination, and then coexisting of licensed band multisystem is exempted from realization.
The embodiment of the present application adopts following technical proposals:
Be applied to the method exempting from licensed band condition of multi-system coexistence, comprise:
By the monitoring of the monitoring subframe to given number, determine the monitoring number of subframes shared by packet of the first communications system transmission;
According to given number and shared monitoring number of subframes, adjustment is monitored subframe and is sent data burst proportion in radio frames.
Be applied to a device of exempting from licensed band condition of multi-system coexistence, comprise:
Monitoring unit, for by the monitoring to the monitoring subframe of given number, determines the monitoring number of subframes shared by packet of the first communications system transmission;
Adjustment unit, for according to given number and described shared monitoring number of subframes, adjusts and monitors subframe and send data burst proportion in radio frames.
At least one technical scheme above-mentioned that the embodiment of the present application adopts can reach following beneficial effect:
Due to can according to the traffic intensity of the first communication system listened to, the Subframe Allocation Pattern of adjustment executive agent, instead of adopt fixing Subframe Allocation Pattern, thus the problem of multisystem in the AF panel of exempting from licensed band and coordination can be solved, and then realize exempting from coexisting of licensed band multisystem.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present application, and form a application's part, the schematic description and description of the application, for explaining the application, does not form the improper restriction to the application.In the accompanying drawings:
Fig. 1 is a kind ofly applied to the method flow diagram of exempting from licensed band condition of multi-system coexistence;
Fig. 2 is system time domain analysis structure chart;
Fig. 3 is the performance comparison analogous diagram under condition of multi-system coexistence;
The throughput statistics figure that Fig. 4 is LTE system traffic intensity when being 0.5;
The throughput statistics figure that Fig. 5 is LTE system traffic intensity when being 1;
The throughput statistics figure that Fig. 6 is LTE system traffic intensity when being 1.5;
The throughput statistics figure that Fig. 7 is LTE system traffic intensity when being 2;
Wi-Fi system average throughput cumulative distribution function (CDF, Cumulative Distribution Function) curve chart under distinct methods when Fig. 8 is condition of multi-system coexistence;
Fig. 9 is the throughput comparison diagram of the total system that LTE system and Wi-Fi system are formed under different business intensity;
Figure 10 is a kind ofly applied to the apparatus structure block diagram of exempting from licensed band condition of multi-system coexistence.
Embodiment
For making the object of the application, technical scheme and advantage clearly, below in conjunction with the application's specific embodiment and corresponding accompanying drawing, technical scheme is clearly and completely described.Obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the application's protection.
Below in conjunction with accompanying drawing, describe the technical scheme that each embodiment of the application provides in detail.
Embodiment 1
In order to solve multisystem in the AF panel of exempting from licensed band and coordination, realize the problem coexisted of multisystem, first the embodiment of the present application 1 provides a kind of and is applied to the method exempting from licensed band condition of multi-system coexistence.The realization flow figure of the method as shown in Figure 1, mainly comprises the steps:
Step 11, by monitoring to the monitoring subframe of given number, determine the monitoring number of subframes shared by packet of the first communications system transmission.
Step 12, according to given number and shared monitoring number of subframes, adjustment is monitored subframe and is sent data burst proportion in radio frames.
Wherein, monitor the subframe that subframe can comprise disallowable reference signal, be namely called almost blank subframe ABS (Almost Blank Subframe, ABS), in order to reduce the energy in this subframe; The frequency range of shared channel can for exempting from licensed band; First communication system can be the communication system such as LTE system or Wi-Fi system, is not construed as limiting this present invention.Especially, when the executive agent of said method is LTE system, the first communication system can be can carry out the system of Channel Sharing with LTE system arbitrarily.
Adopt the said method that embodiment 1 provides, executive agent utilizes monitors subframe monitor channel energy, determine that channel is accounted for by the subframe that the first communication system sends packet the ratio monitoring number of sub frames, the Subframe Allocation Pattern of adjustment executive agent, to solve dynamic assignment sub-frame resources, thus realize exempting from condition of multi-system coexistence under licensed band, and entire throughput optimization when can ensure the first communication system communication.
In embodiment 1, step 11 can realize by performing following sub-step A1 ~ sub-step A2:
A1, from the monitoring subframe of given number, determine the monitoring subframe meeting specified conditions;
Wherein, specified conditions comprise: the packet of the first communications system transmission that this monitoring subframe is detected on a shared channel, and namely shared channel is taken by the first logical information system.
A2, determine the number of the monitoring subframe meeting above-mentioned specified conditions.
Illustrate for sub-step A1 ~ sub-step A2:
As shown in Figure 2, suppose that the executive agent of sub-step A1 ~ sub-step A2 is LTE system (all sets executive agent as LTE system below, be called for short LTE system), the first communication system is Wi-Fi system.LTE system is organized in the radio frames that length is 10ms in the time domain, each radio frames is divided into 10 onesize subframes, wherein, each subframe is made up of two onesize time slots, the length of each time slot is 0.5ms, and each time slot is made up of OFDM (Orthogonal Frequency Division Multiplexing, the OFDM) symbol of the some comprising Cyclic Prefix.
LTE system, when carrying out the transmission of packet, introduces some ABS.And the reference signal information rejected in these ABS, only in ABS, transmit some control signal channels and synchronizing signal, to make the energy of these ABS lower than the channel energy threshold value in Wi-Fi system avoidance mechanism, the time resource that the packet that Wi-Fi system is sent is vacated at these ABS transmits, namely on these ABS, LTE system does not send packet, monitor channel energy on these ABS.
Further, if set adjustment cycle as T
c(T
cfixing and be 1000ms), at T
cin this cycle, LTE system is being monitored monitor channel energy in subframe and is catching the signal that Wi-Fi system sends packet, and records the number of times of the monitoring subframe that now channel is taken by Wi-Fi system by monitoring subframe.
In one embodiment, the subframe sending data represented with T in LTE system, monitor subframe L and represent, as shown in Table 1, LTE system can be, but not limited to several like this subframe proportioning pattern in coexistence mechanism:
Table one:
Wherein, pattern 0:LTE system takes all sub-frame resources, does not monitor subframe, abdicates time resource namely to Wi-Fi system; 2nd work song frame and the 7th work song frame as monitoring subframe, are not sent packet wherein by pattern 1:LTE system, simultaneously monitor channel energy; Pattern 2: on the basis of pattern 1, LTE system increases by two again and monitors subframes, namely vacates altogether 4 subframes to Wi-Fi system, and monitor channel energy wherein; Mode 3: LTE system only using No. 1, No. 4, No. 9 and No. 10 as transmission subframe, all the other subframes all as monitoring subframe, give Wi-Fi system; Pattern 4:LTE system vacates 8 subframes to Wi-Fi system transfers data, these 8 subframes does not send packet, only monitor channel energy.
In embodiment 1, step 12 can be realized by following sub-step B1 ~ sub-step B2:
B1, according to given number and shared monitoring number of subframes, determine the traffic intensity of the first communication system at shared channel;
In one embodiment, formula [1] can be passed through and obtain the traffic intensity of the first communication system at shared channel, as shown in formula [1]:
Wherein, N
seizefor adjustment cycle T
cin, the monitoring number of subframes that listens to the first communication system busy channel; N
listenfor T
cinterior monitoring subframe total number; γ represents the traffic intensity of the first communication system within this period of time.
B2, according to traffic intensity, adjustment is monitored subframe and is sent data burst proportion in radio frames.
In one embodiment, for the first communication system for Wi-Fi system, when the ratio value γ calculated according to formula [1] is larger, the service traffics of corresponding Wi-Fi system are also larger, and now LTE system can distribute more time resource to Wi-Fi system; Otherwise when γ is less, the service traffics of corresponding Wi-Fi system are smaller, and now LTE system can distribute less time resource to Wi-Fi system.
Such as, at an adjustment cycle T
cat the end of, Wi-Fi system can be calculated at this T
cinterior traffic intensity γ, and according to γ, determine next T
cthe interior Subframe Allocation Pattern that should adopt.Such as work as T
cduring for 1000ms, can at T
cthe 1000ms comprised performs following operation:
According to previously described formula [1], calculate Wi-Fi system at this T
cinterior traffic intensity γ;
According to the γ calculated, and the mapping relations of different γ and corresponding Subframe Allocation Pattern, determine and the Subframe Allocation Pattern that this γ phase calculated maps.Particularly, in the embodiment of the present application, the mapping relations of different γ and corresponding Subframe Allocation Pattern can be as follows:
As γ <=0.08, LTE system can be vacated 1 and monitor subframe to Wi-Fi system;
As 0.08< γ <=0.16, LTE system can be vacated 2 and monitor subframe to Wi-Fi system;
As 0.16< γ <=0.24, LTE system can be vacated 3 and monitor subframe to Wi-Fi system;
As 0.24< γ <=0.32, LTE system can be vacated 3 and monitor subframe to Wi-Fi system;
As 0.32< γ <=0.40, LTE system can be vacated 4 and monitor subframe to Wi-Fi system;
As 0.40< γ <=0.48, LTE system can be vacated 4 and monitor subframe to Wi-Fi system;
As 0.48< γ <=0.56, LTE system can be vacated 5 and monitor subframe to Wi-Fi system;
As 0.56< γ <=0.64, LTE system can be vacated 5 and monitor subframe to Wi-Fi system;
As 0.64< γ <=0.70, LTE system can be vacated 6 and monitor subframe to Wi-Fi system;
As 0.70< γ <=0.78, LTE system can be vacated 7 and monitor subframe to Wi-Fi system;
As 0.78< γ <=0.86, LTE system can be vacated 7 and monitor subframe to Wi-Fi system;
As 0.86< γ <=0.94, LTE system can be vacated 8 and monitor subframe to Wi-Fi system;
As γ >0.94, LTE vacates 9 and monitors subframe to Wi-Fi system.
Below describe the simulation result adopting the present invention program to realize exempting from licensed band condition of multi-system coexistence in detail:
The simulation results as shown in Figure 3, LTE system by the present invention suggest plans in method realize the two to Wi-Fi system assignment time resource and exempting from coexisting in licensed band, the optimization of entire throughput can be realized, the balanced optimality of throughput of system both namely realizing when ensureing Wi-Fi system proper communication.
Specifically, in LTE system is grade simulated, the traffic intensity of LTE system (namely, here the number of packet that (namely in each subframe) on average arrives during traffic intensity refers to every millisecond) one have 4 kinds, be respectively 0.5,1,1.5,2; And in each emulation, the traffic intensity of Wi-Fi system all increases from 0.01 to 1.5 linear homogeneous, and therefore Wi-Fi throughput of system also can evenly increase, and when only having Wi-Fi system to occupy channel, corresponding different LTE system traffic intensities, the throughput of Wi-Fi system is all identical.
As seen from Figure 3, when LTE system traffic intensity is multiplied, throughput of system during LTE system busy channel is only had also to be multiplied; But, when LTE system and Wi-Fi system coexist in shared channel with method proposed by the invention, due to the linear growth of Wi-Fi system business intensity, LTE system can distribute increasing sub-frame resources to Wi-Fi system, and therefore the throughput of LTE system can be lost more along with increasing the weight of at double of business.
Throughput when LTE system and Wi-Fi coexistence of systems, compared with only having the throughput of LTE system busy channel, throughput when LTE system coexists have dropped 10.51%, 33.69%, 48.57% and 58.49% respectively; On the other hand, as can see from Figure 3, if utilize the present invention to suggest plans, Wi-Fi system is when with LTE system shared channel, and identical almost with during independent busy channel of the throughput of Wi-Fi system, only have lost 5.36%, 4.07%, 6.13% and 3.91%.Therefore, the present invention suggests plans and can ensure that Wi-Fi systematic function affects by LTE hardly, and LTE system performance also can not be lost a lot.
Further, as Figure 4-Figure 7, the co-existence schemes that when LTE traffic intensity is increased to 2 successively from 0.5, LTE system and Wi-Fi system propose in the present invention, an emulation cycle (be 10000ms in emulation, i.e. 1000 adjustment cycle T
c) in tracking comparison diagram to LTE system and Wi-Fi system average throughput.Furthermore, in order to can in clearer expression method proposed by the invention LTE system to the tracking of Wi-Fi system business intensity, if every 1000ms adds up the average throughput of a LTE system and Wi-Fi system, and LTE system distributes to the number of sub-frames of Wi-Fi system in this 1000ms, to LTE, Wi-Fi throughput of system and the tracking statistical chart monitoring number of sub-frames at every turn in emulating under drawing LTE system different business intensity.As can be seen from Fig. 4-Fig. 5, when LTE system traffic intensity is lighter, even if a large amount of sub-frame resources that LTE system has had the time of 50% to vacate is to Wi-Fi system, it still can complete the transmission of data in fewer time resource, therefore it throughput degradation and not obvious; Again by shown in Fig. 6-Fig. 7, when LTE system traffic intensity is heavier, because needs distribute sub-frame resources to Wi-Fi system in the present invention program, the data of LTE system self are caused to transfer out completely, therefore along with the increase of Wi-Fi system business amount, LTE system throughput can decline, and the monitoring number of sub frames distributed also can get more and more.
As shown in Figure 8, the pattern that can adjust subframe flexibly in the present invention and fixing a kind of subframe proportioning mode performance are contrasted: adopt scheme proposed by the invention (self adaptation namely shown in Fig. 8 coexist algorithm), when system and LTE system are when exempting from licensed band coexists, the average throughput of Wi-Fi system is the most close to system average throughput during its exclusive channel; Next is when LTE system distributes 8 subframes to system average throughput during Wi-Fi system; Distribute to the minimizing of the sub-frame resources of Wi-Fi system along with LTE system, the average throughput of Wi-Fi system is also more and more lower.Therefore, can find out, the method adopting the present invention to propose carries out proportioning to subframe, makes the optimal throughput of average throughput closest to it of Wi-Fi system, namely ensures that Wi-Fi system is minimum by the impact of LTE system.
Further, utilize the Subframe Allocation Pattern of above-mentioned table one, as table two and table three list the concrete numerical value of the average throughput under the algorithm that coexists of coexist algorithm and the fixing subframe proportioning pattern that LTE system and Wi-Fi system propose in the present invention, and average throughput when itself and system being monopolized channel compares.As can be seen from table two and table three, to ensure more than 85% when the system average throughput of Wi-Fi is its exclusive channel, then LTE system can only be operated in self adaptation and to coexist algorithm and pattern 4 times.
Table two: the average throughput of Wi-Fi system under each coexists algorithm:
Table three: the average throughput of LTE system under each coexists algorithm:
Again as shown in Figure 9, adopt scheme proposed by the invention (self adaptation namely shown in Fig. 9 coexist algorithm), when LTE system and Wi-Fi coexistence of systems, the average throughput of one that LTE system and Wi-Fi system are formed overall total system (hereinafter referred to as total system) than fixed L TE system assignment 8 subframes to Wi-Fi coexistence of systems time, the average throughput of total system is well a lot.This is because LTE system can distribute suitable sub-frame resources according to the traffic intensity of Wi-Fi system to it dynamically, thus make use of time resource fully to realize and efficiently coexist.Both ensure that Wi-Fi system affected by LTE system hardly, the hydraulic performance decline of LTE system can not be made again a lot.
It should be noted that, the executive agent of each step of embodiment 1 supplying method can be all same equipment, or, the method also by distinct device as executive agent.Such as, the executive agent of step 11 can be equipment 1, and the executive agent of step 12 can be equipment 2; Again such as, the executive agent of step 12 can be equipment 1, and the executive agent of step 11 can be equipment 2.Especially, the executive agent of the method that embodiment 1 provides can be the Pico base station of LTE system.
Embodiment 2
In order to solve multisystem in the AF panel of exempting from licensed band and coordination, realize the problem coexisted of multisystem, the embodiment of the present application 2 also provides a kind of and is applied to the device of exempting from licensed band condition of multi-system coexistence.The implementation structure block diagram of this device as shown in Figure 10, mainly comprises: monitoring unit 101 and adjustment unit 102.Specific as follows:
Monitoring unit 101, for by the monitoring to the monitoring subframe of given number, determines the monitoring number of subframes shared by packet of the first communications system transmission;
Adjustment unit 102, for according to given number and described shared monitoring number of subframes, adjusts and monitors subframe and send data burst proportion in radio frames.
Wherein, monitoring unit 101, can also comprise: arrange subelement and determine subelement.Specific as follows:
Subelement is set, for determining the monitoring subframe meeting specified conditions from the monitoring subframe of given number; Wherein, specified conditions comprise: the packet of the first communications system transmission that this monitoring subframe is detected on a shared channel;
Determine subelement, for determining the number of the monitoring subframe meeting specified conditions.
Wherein, adjustment unit, can also comprise: determine subelement and adjustment subelement.Specific as follows:
Determine subelement, for according to given number and shared monitoring number of subframes, determine the traffic intensity of the first communication system at shared channel;
Adjustment subelement, for according to traffic intensity, adjusts and monitors subframe and send data burst proportion in radio frames.
Above-mentioned proposed monitoring subframe can be almost blank subframe ABS; The frequency range of shared channel can for exempting from licensed band.
Adopt the device that embodiment 2 provides, executive agent utilizes monitors subframe monitor channel energy, determine that channel is accounted for by the subframe that the first communication system sends packet the ratio monitoring number of sub frames, the Subframe Allocation Pattern of adjustment executive agent, to solve dynamic assignment sub-frame resources, thus realize exempting from condition of multi-system coexistence under licensed band, and entire throughput optimization when can ensure the first communication system communication.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
In one typically configuration, computing equipment comprises one or more processor (CPU), input/output interface, network interface and internal memory.
Internal memory may comprise the volatile memory in computer-readable medium, and the forms such as random access memory (RAM) and/or Nonvolatile memory, as read-only memory (ROM) or flash memory (flash RAM).Internal memory is the example of computer-readable medium.
Computer-readable medium comprises permanent and impermanency, removable and non-removable media can be stored to realize information by any method or technology.Information can be computer-readable instruction, data structure, the module of program or other data.The example of the storage medium of computer comprises, but be not limited to phase transition internal memory (PRAM), static RAM (SRAM), dynamic random access memory (DRAM), the random access memory (RAM) of other types, read-only memory (ROM), Electrically Erasable Read Only Memory (EEPROM), fast flash memory bank or other memory techniques, read-only optical disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassette tape, tape magnetic rigid disk stores or other magnetic storage apparatus or any other non-transmitting medium, can be used for storing the information can accessed by computing equipment.According to defining herein, computer-readable medium does not comprise temporary computer readable media (transitory media), as data-signal and the carrier wave of modulation.
Also it should be noted that, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, commodity or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, commodity or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, commodity or the equipment comprising described key element and also there is other identical element.
It will be understood by those skilled in the art that the embodiment of the application can be provided as method, system or computer program.Therefore, the application can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the application can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The foregoing is only the embodiment of the application, be not limited to the application.To those skilled in the art, the application can have various modifications and variations.Any amendment done within all spirit in the application and principle, equivalent replacement, improvement etc., within the right that all should be included in the application.
Claims (10)
1. be applied to the method exempting from licensed band condition of multi-system coexistence, it is characterized in that, comprising:
By the monitoring of the monitoring subframe to given number, determine the monitoring number of subframes shared by packet of the first communications system transmission;
According to described given number and described shared monitoring number of subframes, adjustment is monitored subframe and is sent data burst proportion in radio frames.
2. the method for claim 1, is characterized in that, by the monitoring of the monitoring subframe to given number, determines the monitoring number of subframes shared by packet of the first communications system transmission, comprising:
The monitoring subframe meeting specified conditions is determined from the monitoring subframe of described given number; Wherein, described specified conditions comprise: the packet of the first communications system transmission that this monitoring subframe is detected on a shared channel;
Determine the described number meeting the monitoring subframe of specified conditions.
3. the method for claim 1, is characterized in that, according to described given number and described shared monitoring number of subframes, adjustment is monitored subframe and sent data burst proportion in radio frames, comprising:
According to described given number and described shared monitoring number of subframes, determine the traffic intensity of the first communication system at shared channel;
According to described traffic intensity, adjustment is monitored subframe and is sent data burst proportion in radio frames.
4. the method as described in claim as arbitrary in claims 1 to 3, is characterized in that, described monitoring subframe comprises:
Almost blank subframe ABS.
5. method as claimed in claim 4, it is characterized in that, the frequency range of shared channel is for exempting from licensed band.
6. be applied to a device of exempting from licensed band condition of multi-system coexistence, it is characterized in that, comprising:
Monitoring unit, for by the monitoring to the monitoring subframe of given number, determines the monitoring number of subframes shared by packet of the first communications system transmission;
Adjustment unit, for according to described given number and described shared monitoring number of subframes, adjusts and monitors subframe and send data burst proportion in radio frames.
7. device as claimed in claim 6, it is characterized in that, described monitoring unit, comprising:
Subelement is set, for determining the monitoring subframe meeting specified conditions from the monitoring subframe of described given number; Wherein, described specified conditions comprise: the packet of the first communications system transmission that this monitoring subframe is detected on a shared channel;
Determine subelement, for determining the described number meeting the monitoring subframe of specified conditions.
8. device as claimed in claim 6, it is characterized in that, described adjustment unit, comprising:
Determine subelement, for according to described given number and described shared monitoring number of subframes, determine the traffic intensity of the first communication system at shared channel;
Adjustment subelement, for according to described traffic intensity, adjusts and monitors subframe and send data burst proportion in radio frames.
9. the device as described in claim as arbitrary in claim 6 ~ 8, is characterized in that, described monitoring subframe comprises:
Almost blank subframe ABS.
10. device as claimed in claim 9, it is characterized in that, the frequency range of shared channel is for exempting from licensed band.
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| CN201410698483.7A CN104363599B (en) | 2014-11-26 | 2014-11-26 | A kind of method and device for being applied to exempt from licensed band condition of multi-system coexistence |
| PCT/CN2014/094093 WO2016082261A1 (en) | 2014-11-26 | 2014-12-17 | Method and device applied to multi-system coexistence in license-free frequency band |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104703210A (en) * | 2015-03-23 | 2015-06-10 | 北京邮电大学 | Method of interference rejection and information transmission in heterogeneous network |
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| CN105611541B (en) * | 2015-12-21 | 2019-02-12 | 国家无线电监测中心 | Realize the method and system of LTE and Wi-Fi fair co-existence in unauthorized frequency range |
| WO2017117990A1 (en) * | 2016-01-08 | 2017-07-13 | 宇龙计算机通信科技(深圳)有限公司 | Random access method, random access device, and terminal |
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| CN106714258B (en) * | 2016-12-20 | 2020-05-26 | 浙江大华技术股份有限公司 | Channel switching method and device |
| CN113114395A (en) * | 2019-04-29 | 2021-07-13 | 创新先进技术有限公司 | Channel determination method and device |
| CN113114395B (en) * | 2019-04-29 | 2023-05-30 | 创新先进技术有限公司 | Channel determination method and device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104363599B (en) | 2018-05-15 |
| WO2016082261A1 (en) | 2016-06-02 |
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