CN105407490B

CN105407490B - Different communication systems can be made to coexist in the realization method and system exempted from licensed band

Info

Publication number: CN105407490B
Application number: CN201410472254.3A
Authority: CN
Inventors: 杜金玲; 徐景; 王江
Original assignee: Shanghai Research Center for Wireless Communications
Current assignee: Shanghai Research Center for Wireless Communications
Priority date: 2014-09-16
Filing date: 2014-09-16
Publication date: 2019-10-15
Anticipated expiration: 2034-09-16
Also published as: CN105407490A

Abstract

Different communication systems can be made to coexist in the realization method and system exempted from licensed band, the present invention, which provides one kind, can make different communication systems coexist in the implementation method exempted from licensed band, comprising: listen to and exempt from licensed band subchannel；One or more candidates that selection meets alternative conditions exempt from licensed band subchannel；Judge that candidate exempts from whether licensed band subchannel is in idle condition according to the data volume for exempting from the first data information of licensed band subchannel transmission；If so, occupying candidate exempts from the second data information of licensed band subchannel transmission, exempts from the information processing manner that licensed band subchannel is in idle condition according to the pre-set candidate and handle；If it is not, judging that candidate exempts from whether licensed band subchannel is in undercapacity state；If so, exempting from the information processing manner processing that licensed band subchannel is in undercapacity state according to the pre-set candidate；Exempt from licensed band subchannel if it is not, then temporarily abandoning occupying the candidate.The present invention transmits cellular data using licensed band is exempted from, to make mobile broadband network capacity multiplica, promotes the availability of frequency spectrum.

Description

Different communication systems can be made to coexist in the realization method and system exempted from licensed band

Technical field

The invention belongs to cordless communication network technical fields, different communication systems can be made to coexist in more particularly to one kind and exempted from Realization method and system in licensed band.

Background technique

With the rapid development of radio communication service, mobile Internet is becoming the new economic growth of electronics and information industry Point.However, radio spectrum resources seem more nervous with growing mobile data usage amount.Data service it is quick Development proposes higher demand to radio resource.LTE, LTE-U research are being exempted from using LTE technology in licensed band, this is not only The availability of frequency spectrum can be promoted, moreover it is possible to bring new business application.

The net of areal is deployed in the multiple WiFi systems in periphery referring to Fig. 1, being shown as LTE/LTE-U cellular system Network outdoor scene schematic diagram, under typical scene, LTE/LTE-U uses authorized spectrum band, is concentrated by base station (eNodeB, Home-eNodeB) Formula controls user equipment (User Equipment, UE) UE1, UE2, UE3, completes Resource Distribution and Schedule, link circuit self-adapting, function Rate control and interference are eliminated and the functions such as mobile management, it is ensured that QoS of customer (QoS) end to end.And multiple WiFi systems System, which works at the same time, is exempting from licensed band.To avoid inter-system interference, multiple WiFi systems of the same area use mutually not phase as far as possible Same exempts from licensed band subchannel.For example, 2.4~2.4835GHz frequency range is divided into the subchannel that 13 width are 22MHz in China, There are three the subchannels not overlapped each other.In Fig. 1, (access point is respectively AP to three WiFi systems₁, AP₂, AP₃) do not do mutually It disturbs.System website (STA₁,STA₂,…,STA₆) between communication by access point distributed AC servo system.WiFi uses carrier sense (Listen-Before-Talk) mechanism, no matter AP or website are all just to transmit data after detecting channel idle.It is practical On, as long as work is in the requirement for exempting from the wireless device in licensed band and meeting the limitation of its maximum power spectral densities, any equipment is equal It can be used and exempt from licensed band.3GPP motion RP-131635, RP-131680 etc. suggest that LTE directly uses ISM band, such as main service Cell (PCell) always operates in authorized spectrum band, is used by carrier aggregation technology and exempts from licensed band as supplemental resources.So And if licensed band is being exempted from LTE work, find that channel is occupied when WiFi website, which is listened to, exempts from licensed band, WiFi system Channel idle will be waited using back off algorithm.If LTE is fully loaded and busy channel resource, WiFi will persistently keep out of the way always, can not Data are sent, can not work normally so as to cause WiFi system.This not only breaks up the fair principle of WiFi and LTE system, also WiFi system handling capacity, packet loss and average delay performance will be reduced.Exempting to be permitted even if work can coexists in WiFi system with LTE Can frequency range, the out-of-band radiation generated due to the not perfect of WiFi site receiver and transmitter characteristic will cause LTE system A degree of interference.Exempt from licensed band in order to ensure various not homologous rays can coexist, needs to study suitable coexistence mechanism, really Maximum spectral efficiency is protected, fair principle is met.Fairness is one of important performance indexes of network, if Fig. 1 owned WiFi equipment and LTE user regard an entirety as, all devices can work on exempting from licensed band, then in access channel During, LTE user, which cannot directly occupy, exempts from licensed band.Otherwise, WiFi website possibly can not obtain channel, number of devices Fair principle is not met according to transmission, will also decrease the system effectiveness of whole network.It can be seen that research LTE/LTE-U and The fairness problem that WiFi system coexists is of practical significance very much.

For example, 2006/013534 A2 of WO describes different coexistence of systems in the work for exempting from licensed band in the prior art Mode.The patent assume work in the multiple systems for exempting from licensed band spectral bandwidth and channel capacity it is different, then from Controller centered on an equipment is selected according to certain principle in all systems, the master controller be each system configuration or Reconfigure MAC layer parameter, under the premise of meeting the QoS of each system, liberally distribute each system can use exempt to permit The time interval or bandwidth resources of frequency spectrum.To meet fair principle, which is the specified one section of satisfaction system of each communication system System requires the time interval or frequency spectrum resource of (or proportional to its system requirements), to complete to communicate.Please refer to Fig. 2 a and figure 2b is respectively indicated as time-based resource fairness allocation plan in the prior art and the resource fairness allocation plan based on frequency spectrum Schematic diagram, master controller broadcast operating parameter (MAC layer parameter or the adjustment reconfiguration of each system by the control channel added The MAC parameter set), the time for notifying each system to be assigned to or frequency resource.Network is broadcasted in control information exchange interval Beacon (Beacon), all local symbiotic system receive the broadcast from the control channel and disappear information.The broadcast is received to disappear The system of breath is received and sent messages in section or frequency spectrum at the appointed time, completes communication.2006/013534 A2 of WO is exempting from work The system of licensed band liberally uses frequency spectrum resource as far as possible.But centered on selecting an equipment in each system Controller, either centralization or distributed schemes will all bring greatly consumption resource and time delay, and center controls Device could liberally be each system configuration MAC layer parameter, in practice it is to be understood that the system informations such as transmission rate of each system It is difficult to realize.Particularly with the high LTE system of safe and secret rank, system information can not may be obtained due to failed authentication, Cause LTE system that can not work and exempts from licensed band.

Therefore, how providing one kind can make different communication systems coexist in the realization method and system exempted from licensed band, It is difficult to realize need to select master controller to obtain from communication system using frequency spectrum resource in order to fair to solve the prior art Taking the system informations such as the transmission rate of each communication system could liberally be the technology of each communication system configuration MAC layer parameter Scheme can not obtain system information due to failed authentication, lead to LTE particularly with the high LTE system of safe and secret rank System can not work in the defect for exempting from licensed band, have become practitioner in the art's technical problem urgently to be resolved in fact.

Summary of the invention

In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide one kind so that different communication systems is total to It is stored in the realization method and system exempted from licensed band, is difficult to realize use frequency spectrum resource for justice for solving the prior art The system informations such as the transmission rate for needing to select master controller from communication system to obtain each communication system could be fair Ground is the technical solution of each communication system configuration MAC layer parameter, can be by particularly with the high LTE system of safe and secret rank System information can not be obtained in failed authentication, causes LTE system that can not work the problem of exempting from licensed band.

In order to achieve the above objects and other related objects, one aspect of the present invention, which provides one kind, so that different communication systems is coexisted In exempting from the implementation method in licensed band, applied to the first communication system being made of wireless access point and website and by base station and The communication network of the second communication system composition of user terminal composition, first communication system are used for transmission the first data letter Breath, second Communications System User transmit the second data information, the first system communication have it is multiple do not overlap exempt from Licensed band subchannel, described so that different communication systems is coexisted in the implementation method exempted from licensed band include: to listen in institute Exempt from licensed band subchannel existing for stating in the preset range of the second communication system；According to alternative conditions, described exempt to be permitted multiple The one or more candidates for meeting the alternative conditions can be selected to exempt from licensed band subchannel in frequency range subchannel；It is listened to default Exempt from the data volume for exempting from the first data information of licensed band subchannel transmission in the time interval of licensed band subchannel according to Judge that the candidate exempts from whether licensed band subchannel is in idle condition；If so, occupying the candidate exempts from licensed band Channel exempts from licensed band subchannel according to the pre-set candidate and is in the free time to transmit second data information The information processing manner of state is handled；If it is not, continuing to judge that the candidate exempts from whether licensed band subchannel is in undercapacity shape State；If so, exempting from the information processing manner that licensed band subchannel is in undercapacity state according to the pre-set candidate Processing；Exempt from licensed band subchannel if it is not, then temporarily abandoning occupying the candidate.

Optionally, the pre-set candidate exempts from the information processing manner packet that licensed band subchannel is in idle condition It includes: calculating exempt from the handling capacity of second data information transmitted in licensed band subchannel in the candidate in real time；Judge institute Whether the handling capacity of second data information of transmission is more than or equal to the first handling capacity maximum value of the second data information, if It is then to suspend transmission second data information, listens in default waiting period with the presence or absence of first data information It competes the candidate and exempts from licensed band subchannel, if so, discharging the candidate exempts from licensed band subchannel；If it is not, then judgement is No there are still the second data informations to be sent, if so, improving the handling capacity maximum value of second data information to Two handling capacity maximum values continue to transmit second data information；If it is not, then stopping transmitting the second data information, terminate process.

Optionally, if the handling capacity of second data information transmitted less than the second data information the first handling capacity Maximum value then transmits less than the second data information to be sent of the first handling capacity maximum value equal to the second data information.

Optionally, " signal " field of the physical layer convergence protocol frame originating point information of parsing first communication system can be passed through " length " field estimates the data volume of first the first data information of communications system transmission to judge that the candidate exempts from licensed band Whether subchannel is in undercapacity state.

Optionally, the pre-set candidate exempts from the information processing manner that licensed band subchannel is in undercapacity state It include: to be listened in the time interval for exempting from licensed band subchannel default according to institute after terminating the transmission of the first data information State the candidate data volume for exempting from the first data information of licensed band subchannel transmission；It occupies the candidate and exempts from licensed band subchannel use To transmit second data information；If a data slot end of transmission of second data information, and meet first resource Dispatching criterion then suspends the transmission of second data information；It is listened in the default waiting period with the presence or absence of described First data information competes the candidate and exempts from licensed band subchannel；If so, discharge the candidate exempt from licensed band subchannel with Transmit first data information；If not, then it represents that the candidate exempts from licensed band subchannel and is in idle condition, and judges whether There are still second data informations to be sent, if so, the second data information that transmission is to be sent；If it is not, then stopping passing Defeated second data information terminates process.

Optionally, exempt from the step of licensed band subchannel is to transmit first data information also in the release candidate Physical layer convergence protocol frame originating point information including parsing first communication system, detects a data of first data information Segment whether the logical value of end of transmission, if whether the logical value of end of transmission is a data slot of first data information Logical value is completed, and meets Secondary resource dispatching criterion, then continues to determine whether that there are still second data to be sent letters Breath, if so, the second data information that transmission is to be sent；If it is not, then stopping transmitting the second data information, terminate process.

Optionally, the logical value includes the completion logical value and unfinished logical value, and the completion logical value is equal to 0 When, indicate a data slot end of transmission of first data information；When the unfinished logical value is equal to 1, described in expression One data slot of the first data information does not transfer；Whether the data slot for detecting first data information transfers The step of complete logical value includes continuing to transmit the first data information when detecting the unfinished logical value, until detection To the completion logical value.

Another aspect of the present invention, which also provides one kind, can make different communication systems coexist in the realization system exempted from licensed band, Applied to the first communication system being made of wireless access point and website and the second communication system being made of base station and user terminal The communication network of system composition, first communication system are used for transmission the first data information, and second Communications System User passes Defeated second data information, the first system communication have it is multiple do not overlap exempt from licensed band subchannel, it is described to make not With coexistence of communication systems in the realization system exempted from licensed band include: to listen to module, for listening in second communication system It is existing in the preset range of system to exempt from licensed band subchannel；Selecting module described exempts from license frequency multiple according to alternative conditions One or more candidates that selection meets the alternative conditions in cross-talk channel exempt from licensed band subchannel；First judgment module, For exempting from the number of licensed band subchannel transmission first in the time interval for exempting from licensed band subchannel according in default listen to It is believed that the data volume of breath judges that the candidate exempts from whether licensed band subchannel is in idle condition；If so, enabling described second Communication system occupies the candidate and exempts from licensed band subchannel to transmit second data information, and calls at the first information Reason module exempts from it at the information processing manner that licensed band subchannel is in idle condition according to the pre-set candidate Reason；If it is not, the second judgment module is then called to continue to judge that the candidate exempts from whether licensed band subchannel is in undercapacity state； If so, calling third message processing module that it is made to exempt from licensed band subchannel according to the pre-set candidate is in non-full The information processing manner of load state is handled；If it is not, second communication system is then enabled temporarily to abandon occupying the candidate and exempt to permit Frequency range subchannel.

Optionally, the first information processing module exempts from the upload of licensed band subchannel in the candidate for calculating in real time The handling capacity of defeated second data information；Judge whether the handling capacity of second data information transmitted is more than or equal to First handling capacity maximum value of the second data information, if so, the second communication system pause is enabled to transmit second data Information listens to competing the candidate with the presence or absence of first data information and exempt from licensed band letter in default waiting period Road, if so, discharging the candidate exempts from licensed band subchannel；If it is not, then judging whether that there are still the second data to be sent Information continues to transmit institute if so, improving the handling capacity maximum value of second data information to the second handling capacity maximum value State the second data information；If it is not, second communication system is then enabled to stop defeated second data information.

Optionally, transmission of the Second processing module for the first data information to the end of first communication system Afterwards, it enables second communication system occupy the candidate and exempts from licensed band subchannel to transmit second data information；If One data slot end of transmission of second data information, and meet first resource dispatching criterion, then enable second communication The transmission of second data information described in system halt；It is listened in the default waiting period with the presence or absence of first data Information competes the candidate and exempts from licensed band subchannel；If so, enabling second communication system discharge the candidate exempts from license frequency Cross-talk channel is to transmit first data information；If not, then it represents that the candidate exempts from licensed band subchannel and is in idle shape State, judging second communication system, whether there are still second data informations to be sent, if so, enabling described second to lead to Letter system transmits the second data information to be sent；If it is not, second communication system is then enabled to stop the second data information of transmission, End process.

As described above, of the invention makes different communication systems coexist in the realization method and system exempted from licensed band, It has the advantages that

First, it may be implemented to exempt from licensed band WiFi communication system and exempt from the LTE/LTE-U communication system of licensed band altogether It deposits, LTE/LTE-U communication system, which can use, exempts from licensed band transmission cellular data, to make mobile broadband network capacity times Increase, promotes the availability of frequency spectrum.

The load of second, LTE/LTE-U communication system balanced multiple WiFi systems to a certain extent.LTE/LTE-U choosing Select that energy is small, load it is light exempt from candidate resource of the licensed band subchannel as LTE/LTE-U equipment, it is balanced to a certain extent Exempt from the load of licensed band.

Third realizes that WiFi communication system and LTE/LTE-U Communications System User grade ratio justice use exempt from licensed band Resource.If LTE/LTE-U exempts from licensed band transmission data in candidate, using ratio, liberally the method for salary distribution and WiFi website are competed It is fair to have reached user class ratio for wireless channel.

4th, it interferes with each other between inhibition system, while playing the advantage of LTE/LTE-U communication system.Once LTE/LTE-U Communication system occupancy exempts from licensed band, and WiFi communication system listens to that exempt from licensed band subchannel occupied, will stop sending number According to waiting is exempted from the licensed band subchannel free time, and WiFi will not generate interference to LTE/LTE-U user.Data flow is passed using honeycomb Transferring technology can utmostly play LTE/LTE-U technical advantage.Conversely, if WiFi is exempting from licensed band sending and receiving data, LTE/ Inter-system interference is also not present without using licensed band is exempted from LTE-U user.

5th, save phone user's rate.It is polymerize by authorized spectrum band with the effective of licensed band is exempted from, is provided more for user Good business experience saves phone user's rate, while mobile operator being helped to expand mobile broadband network capacity and market sky Between.

Detailed description of the invention

Fig. 1 is shown as LTE/LTE-U cellular system in the prior art and the multiple WiFi systems in periphery be deployed in it is same The network outdoor scene schematic diagram in area.

Fig. 2 a is shown as time-based resource fairness allocation plan schematic diagram in the prior art.

Fig. 2 b is shown as the resource fairness allocation plan schematic diagram based on frequency spectrum in the prior art.

Fig. 3, which is shown as of the invention, makes different communication systems coexist in the implementation method process signal exempted from licensed band Figure.

Fig. 4, which is shown as of the invention, to be coexisted in different communication systems to set in advance in the implementation method exempted from licensed band The candidate set exempts from the flow diagram for the information processing manner that licensed band subchannel is in idle condition.

Fig. 5, which is shown as of the invention, to be coexisted in different communication systems to set in advance in the implementation method exempted from licensed band The candidate set exempts from the flow diagram that licensed band subchannel is in the information processing manner of undercapacity state.

Fig. 6, which is shown as of the invention, makes different communication systems coexist in the realization system principle structure exempted from licensed band Schematic diagram.

Component label instructions

1 can be such that different communication systems coexist in

Exempt from the realization system in licensed band

11 listen to module

12 selecting modules

13 first judgment modules

14 first information processing modules

15 parsing modules

16 second judgment modules

17 second message processing modules

18 third message processing modules

S1~S7 step

Specific embodiment

Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from Various modifications or alterations are carried out under spirit of the invention.It should be noted that in the absence of conflict, following embodiment and implementation Feature in example can be combined with each other.

It should be noted that illustrating the basic structure that only the invention is illustrated in a schematic way provided in following embodiment Think, only shown in schema then with related component in the present invention rather than component count, shape and size when according to actual implementation Draw, when actual implementation kenel, quantity and the ratio of each component can arbitrarily change for one kind, and its assembly layout kenel It is likely more complexity.

It is of the present invention make different communication systems coexist in exempt from realization method and system in licensed band require it is logical Communication network meets it is assumed hereinafter that condition:

(1) wireless channel need to be listened to when LTE/LTE-U is seized and exempted from licensed band, to avoid or reducing to the greatest extent interference, LTE/LTE-U, which is listened to, to exempt from the duration of licensed band and is assumed the symbol lengths of one or more LTE systems, in this period Interior, the LTE/LTE-U equipment with intercept capabilities, which is listened to and can successfully be seized, exempts from licensed band.

(2) base station LTE/LTE-U can parse WiFi physical layer PLCP (physical layer convergence protocol) message and MAC layer grouping Frame originating point information obtains " SIGNAL " and " LENGTH " field of physical layer PLCP, to estimate WiFi handling capacity；It obtains MAC layer is grouped " source address (SA) " of frame head, " destination address (DA) " information, and " duration (Duration/ID) ", The logical value of " more multi-segment (More fragments) " or " more data (More data) ".

Based on above-mentioned it is assumed that provided by the present invention make different communication systems coexist in the realization side exempted from licensed band Method realizes that wireless transmission is divided into two steps:

Exempt to select one (or multiple) to load light subchannel in licensed band subchannel from each in 1, LTE/LTE-U base station Alternately frequency spectrum resource.If base station discovery is all exempt from that subchannel is permitted to be in excess load full-load run, LTE is not examined temporarily Consider use and exempt from licensed band, does not seize and exempt from licensed band.

2, exempt from licensed band subchannel in selected, the criterion of LTE and WiFi system based on maximization and system velocity Use resource transmission data.

Embodiment one

So that different communication systems is coexisted in the implementation method exempted from licensed band described in the present embodiment, is applied to by nothing The first communication system and be made of the second communication system that base station and user terminal form logical that line access point and website form Communication network, first communication system are used for transmission the first data information, and second Communications System User transmits the second data Information, the first system communication have it is multiple do not overlap exempt from licensed band subchannel.Referring to Fig. 3, being shown as to make Different communication systems coexist in the implementation method flow diagram exempted from licensed band.In the present embodiment, first communication System is WiFi communication system, and second communication system is LTE/LTE-U communication system, and the WiFi communication system includes nothing Line access point and website, the website can be PC machine, tablet computer, smart phone etc., the LTE/LTE-U communication system packet Household base station is included, the user terminal can be smart phone, tablet computer etc. mobile terminal, first data information For WiFi data information, second data information is cellular data information.As shown in figure 3, described make different communication systems Coexist in exempt from implementation method in licensed band the following steps are included:

S1, the LTE/LTE-U communication system are listened in the time interval for exempting from licensed band subchannel and in institute default It states and exempts from licensed band subchannel existing for listening to one by one in the preset range of LET/LTE-U communication system.In the present embodiment, institute It states default listen to exempt from the time interval of licensed band subchannel and can be arranged according to IEEE802.11 agreement, for example, the duration can It is set as DIFS as defined in IEEE802.11 agreement (DCF Interframe Space) and binary exponential backoff algorithm most Big competition window (aCWmax) is multiplied by the sum of time slot (aSlotTime).It being illustrated below, 20MHz bandwidth is modulated using OFDM, ACWmax=1023, aSlotTime=9 μ s, this, which is preset, listens to the time interval for exempting from licensed band subchannel permission in this time The WiFi website that back-off timer is kept to zero in being spaced has the chance for sending data.It should be pointed out that default listen to exempts to be permitted Can the setting of time interval of frequency range subchannel need to meet the assumed condition of aforementioned synchronization.

S2, the LTE/LTE-U communication system are according to alternative conditions, i.e., every according to the signal energy rough estimate received One is exempted from the network load amount of licensed band subchannel, indicates that this exempts from licensed band if network load amount is less than default load capacity Subchannel is qualified as candidate and exempts to permit subchannel.Step S2 is described to exempt from license frequency multiple according to the alternative conditions One or more candidates that selection meets the alternative conditions in cross-talk channel exempt from licensed band subchannel.In the present embodiment, The LTE/LTE-U communication system is when selecting one or more candidates to exempt from licensed band subchannel transmission data, the family Formula base station can exempt from the measurements reports such as the channel measurement instruction (CQI) of licensed band subchannel according to the candidate that the user terminal is sent It accuses information and judges that the candidate exempts from the channel link qualities of licensed band subchannel.For example, if exempting from licensed band subchannel WiFi equipment is very intensive, channel overlap, and with frequency, adjacent frequency interference can be than more serious.Family base in LTE/LTE-U communication system Standing can be according to measurement report information, other energy variations for exempting from licensed band subchannel of base station itself acquisition, and LTE/LTE-U is logical The factors such as letter system data volume to be transmitted decide whether to select other to exempt from licensed band sub-channel spectra resource.Based on this side Method, LTE/LTE-U communication system, can be to the maximum extent in WiFi communication systems and LTE/ when licensed spectrum resource is exempted from use Licensed band resource is exempted from fair use between LTE-U communication system.This step can achieve the skill of the balanced load for exempting from licensed band Art effect.

S3, the LTE/LTE-U communication system are listened in the time interval for exempting from licensed band subchannel in described preset, root Judge that the candidate exempts from licensed band subchannel and is according to the data volume for exempting from the first data information of licensed band subchannel transmission It is no to be in idle condition；If so, thening follow the steps S4；If it is not, thening follow the steps S5.

S4, if the LTE/LTE-U communication system judges that the candidate exempts from licensed band subchannel and is in idle condition, It then occupies the candidate and exempts from licensed band subchannel to transmit second data information, and according to the pre-set time The information processing manner processing that licensed band subchannel is in idle condition is exempted from choosing.Referring to Fig. 4, being shown as pre-set institute State the candidate flow diagram for exempting from the information processing manner that licensed band subchannel is in idle condition, the pre-set institute State it is candidate exempt from information processing manner that licensed band subchannel is in idle condition the following steps are included:

S41, the LTE/LTE-U communication system calculates in real time exempts from the institute transmitted in licensed band subchannel in the candidate State the handling capacity of the second data information.

Whether the handling capacity of S42, second data information that the LTE/LTE-U communication system judgement is transmitted are greater than Equal to the first handling capacity maximum value of the second data information, if so, S43 is executed, if it is not, thening follow the steps S49.Wherein, institute The the first handling capacity maximum value for stating the second data information can refer to the setting of WiFi communication system theoretical maximum transmission rate.

Second data information is transmitted in S43, the LTE/LTE-U communication system pause.

S44, the LTE/LTE-U communication system enter wait state, and listening in default waiting period whether there is First data information competes the candidate and exempts from licensed band subchannel, if so, then follow the steps S45, i.e., the described LTE/LTE-U Communication system discharges the candidate and exempts from licensed band subchannel；If it is not, thening follow the steps S46.

S46, the LTE/LTE-U communication system judges whether that there are still the second data informations to be sent, if so, holding Row step S47, if it is not, thening follow the steps S48.

S47, the LTE/LTE-U communication system is by the handling capacity maximum value of second data information from the first handling capacity Maximum value is improved to the second handling capacity maximum value, continues to transmit second data information.

S48, the LTE/LTE-U communication system stop the second data information of transmission, terminate process.

S49, if the handling capacity of second data information transmitted less than the second data information the first handling capacity most Big value, the LTE/LTE-U communications system transmission are less than or equal to the to be sent of the first handling capacity maximum value of the second data information The second data information.

S5, the LTE/LTE-U communication system parse physical layer convergence protocol (PLCP) frame of the WiFi communication system " signal " field and " length " field of head information, i.e., according to " SINGNAL " field of the PLCP and " LENGTH " field point The message transmission rate and data length of the first data information are analysed, estimation WiFi communication system transmits the data of the first data information Amount is to judge that the candidate exempts from whether licensed band subchannel is in undercapacity state or the LTE/LTE-U communication system Network attribute can be determined by frequency spectrum (2.4GHz and 5GHz) and Signal coding (OFDM, FHSS, DSSS or HR-DSSS etc.), And then estimate that WiFi communication system transmits the data volume of the first data information.If exempting from licensed band subchannel in the candidate The data volume undercapacity of first data information, thens follow the steps S6, if exempting from first in licensed band subchannel in the candidate The data volume of data information is fully loaded, thens follow the steps S7.

S6, the LTE/LTE-U communication system exempt from licensed band subchannel according to the pre-set candidate and are in non- The information processing manner of full load condition is handled.Referring to Fig. 5, being shown as the pre-set candidate exempts from licensed band subchannel The flow diagram of information processing manner in undercapacity state.The pre-set candidate exempts from licensed band letter Road be in the information processing manner of undercapacity state the following steps are included:

S61, the LTE/LTE-U communication system after the WiFi communication system terminates the transmission of the first data information, The number of licensed band subchannel transmission first is exempted from according to the candidate in default listen in the time interval for exempting from licensed band subchannel It is believed that breath data volume with obtain WiFi communication system in end of transmission described in the first data information moment instantaneous transfer speed Rate r_WiFi, and transmit the first data information period in WiFi communication system average transmission rate

S62, the LTE/LTE-U communication system occupy the candidate and exempt from licensed band subchannel to transmit described second Data information, and in transmission process obtain LTE/LTE-U communication system in end of transmission described in the second data information moment Instantaneous transmission speed r_LTE/LTE-U, and transmit the second data information period in LTE/LTE-U communication system average biography Defeated rate

S63, if a data slot end of transmission of second data information, and meet first resource dispatching criterion, then The LTE/LTE-U communication system suspends the transmission of second data information.In the present embodiment, the first resource scheduling Criterion can use the first ratio equity criterion, i.e.,

S64, the LTE/LTE-U communication system enter wait state, and listen in the default waiting period and be It is no to compete the candidate there are first data information and exempt from licensed band subchannel；If so, thening follow the steps S65；If it is not, then holding Row step S69.

S65, the LTE/LTE-U communication system discharge the candidate and exempt from licensed band subchannel to transmit first number It is believed that breath.It in this step further include the physical layer convergence protocol frame originating point information for parsing the WiFi communication system, described in detection One data slot of the first data information whether end of transmission logical value and detect whether to receive confirmation message, the logical value Including completing logical value and unfinished logical value, i.e. the first data information transfer completes logical value and the first data information transfer not Complete logical value.The completion logical value is equal to 0, and when receiving confirmation message, indicates a data of first data information Fragments for transport finishes；The unfinished logical value is equal to 1, and when not receiving confirmation message, indicates first data information One data slot does not transfer；Detecting a data slot of first data information, whether the logical value of end of transmission includes When detecting the unfinished logical value, continue to transmit the first data information, until detecting the completion logical value and receipts Confirmation message is not received to confirmation message or, but confirmation message is waited to transmit the required time.If detecting in this step To first data information a data slot whether end of transmission logical value complete logical value (expression transmitting First data information transfer terminates) and confirmation message or confirmation message is not received, but wait required for confirmation message transmission When the time, and meet Secondary resource dispatching criterion, then continues to execute step S66.In the present embodiment, the Secondary resource scheduling Criterion can use the second ratio equity criterion, i.e.,In the present embodiment, first ratio is fair Criterion and the second ratio equity criterion are come out by the following two derivation of equation, that is, define ratio fair throughput effectiveness letter Number are as follows:

Indicate to operate in each system for exempting from licensed band subchannel in transmission data letter The Mean Speed of breath, r_iIt (t) is that all devices are exempting from the sum of the momentary rate in licensed band subchannel in t moment system i. In order to make T_PFReach maximum value, is equivalent to solve

Maximum value.As an example it is assumed that known WiFi and LTE/LTE-U exist Exempt from licensed band subchannel transmitting data,

With

WiFi and LTE/LTE-U system in respectively certain time The average transmission rate of system, then

r_WiFiAnd r_LTE/LTE-URespectively t moment WiFi and The instantaneous transmission speed of LTE/LTE-U system, in order to obtain system and velocity maximum, family in LTE/LTE-U communication system Formula base station needs to compare t moment

WithSize, household base station preferentially by subchannel distribution to value greatly be System, i.e.,

Subchannel is then used for WiFi data transmission；Otherwise subchannel is transmitted for cellular data.When When WiFi equipment completes data slot transmission, the WiFi rate of household base station record at this time in LTE/LTE-U communication system r_WiFiAnd Mean Speed

Meanwhile household base station can directly occupy this and exempt to permit sub- letter in LTE/LTE-U communication system The frequency spectrum resource in road.Similarly, when cellular data segment terminates to transmit (and corresponding LTE/LTE-U frame end of transmission), base station Record

And r_LTE/LTE-U.In this step, use the first ratio equity criterion and the second ratio equity criterion can be with Realize that WiFi communication system and LTE/LTE-U Communications System User grade ratio justice use exempt from licensed band resource.

S66, the LTE/LTE-U communication system judge whether that there are still second data informations to be sent, if so, Then follow the steps S67, i.e., the described LTE/LTE-U communications system transmission the second data information to be sent；If it is not, thening follow the steps S68, i.e., the described LTE/LTE-U communication system stop the second data information of transmission, terminate process.

S69 exempts to be permitted if not listened to first data information in the default waiting period and having competed the candidate Can frequency range subchannel, then indicate that the candidate exempts from licensed band subchannel and is in idle condition, the LTE/LTE-U communication system System judges whether that there are still second data informations to be sent, if so, then follow the steps S67, that is, transmits to be sent the Two data informations；If it is not, thening follow the steps S68, that is, stops the second data information of transmission, terminate process.

S7, the data volume that the candidate exempts from the first data information in licensed band subchannel is fully loaded, the LTE/LTE-U Communication system, which is temporarily abandoned occupying the candidate, exempts from licensed band subchannel.

Make described in the present embodiment different communication systems coexist in the implementation method exempted from licensed band may be implemented with Lower benefit:

Embodiment two

The present embodiment provides one kind, and different communication systems can be made to coexist in the realization system 1 exempted from licensed band, is applied to It the first communication system for being made of wireless access point and website and is made of the second communication system that base station and user terminal form Communication network, first communication system is used for transmission the first data information, the second Communications System User transmission second Data information, the first system communication have it is multiple do not overlap exempt from licensed band subchannel.Referring to Fig. 6, being shown as Different communication systems can be made to coexist in the realization system principle structural schematic diagram exempted from licensed band.In the present embodiment, described First communication system is WiFi communication system, and second communication system is LTE/LTE-U communication system, the WiFi communication system System includes wireless access point and website, which can be PC machine, tablet computer, smart phone etc., and the LTE/LTE-U is logical Letter system includes household base station, the user terminal can be smart phone, tablet computer etc. mobile terminal, described first Data information is WiFi data information, and second data information is cellular data information.It is described to be total to different communication systems It is stored in the realization system 1 exempted from licensed band to be arranged in second communication system, i.e., LTE/LTE-U is set in the present embodiment In communication system.As shown in fig. 6, described, so that different communication systems is coexisted in the realization system exempted from licensed band include: to detect Listen module 11, selecting module 12, first judgment module 13, first information processing module 14, parsing module 15, the second judgment module 16, the second message processing module 17 and third message processing module 18.

Wherein, the module 11 of listening to default for listening in the time interval for exempting from licensed band subchannel and described Exempt from licensed band subchannel existing for listening to one by one in the preset range of LTE/LTE-U communication system.In the present embodiment, described Default listen to is exempted from the time interval of licensed band subchannel and can be arranged according to IEEE802.11 agreement, for example, the duration can be set It is set to the maximum of (the DCF Interframe Space) and binary exponential backoff algorithm of DIFS as defined in IEEE802.11 agreement Competition window (aCWmax) is multiplied by the sum of time slot (aSlotTime).It being illustrated below, 20MHz bandwidth is modulated using OFDM, ACWmax=1023, aSlotTime=9 μ s, this, which is preset, listens to the time interval for exempting from licensed band subchannel permission in this time The WiFi website that back-off timer is kept to zero in being spaced has the chance for sending data.It should be pointed out that default listen to exempts to be permitted Can the setting of time interval of frequency range subchannel need to meet the assumed condition of aforementioned synchronization.

It listens to the selecting module 12 that module 1 is connect with described and is used for according to alternative conditions, i.e., according to the letter received Number energy rough estimate each exempts from the network load amount of licensed band subchannel, if network load amount is less than default load capacity Indicate this exempt from licensed band subchannel be qualified as candidate exempt from permit subchannel.Step S2 be according to the alternative conditions, Exempt from one or more candidates that selection meets the alternative conditions in licensed band subchannel described in multiple and exempts from licensed band letter Road.In the present embodiment, the selecting module 12 is when selecting one or more candidates to exempt from licensed band subchannel to send data, The household base station can exempt from the channel measurement instruction (CQI) of licensed band subchannel according to the candidate that the user terminal is sent Etc. measurement reports information judge that the candidate exempts from the channel link qualities of licensed band subchannel with this.For example, if exempting from license frequency WiFi equipment on cross-talk channel is very intensive, channel overlap, and with frequency, adjacent frequency interference can be than more serious.LTE/LTE-U communication system Other energy quantitative changes for exempting from licensed band subchannel that household base station can be obtained according to measurement report information, base station itself in system Change, the factors such as LTE/LTE-U communication system data volume to be transmitted decide whether to select other to exempt from licensed band sub-channel spectra Resource.Based on the method, LTE/LTE-U communication system, can be to the maximum extent in WiFi when licensed spectrum resource is exempted from use Licensed band resource is exempted from fair use between communication system and LTE/LTE-U communication system.This step can achieve equilibrium and exempt to permit The technical effect of the load of frequency range.

The first judgment module 13 connecting with the selecting module 12 is used to exempt from licensed band in default listen to In the time interval of subchannel, the time is judged according to the data volume for exempting from the first data information of licensed band subchannel transmission Choosing exempts from whether licensed band subchannel is in idle condition；If so, the LTE/LTE-U communication system is enabled to occupy the candidate Exempt from licensed band subchannel to transmit second data information, and first information processing module 14 is called to make it according to preparatory The candidate being arranged exempts from the information processing manner processing that licensed band subchannel is in idle condition；If it is not, then calling second Judgment module 15 continues to judge that the candidate exempts from whether licensed band subchannel is in undercapacity state；If so, calling third Message processing module 16 makes it exempt from the information that licensed band subchannel is in undercapacity state according to the pre-set candidate Processing mode processing；If it is not, then enabling the LTE/LTE-U communication system temporarily abandon occupying the candidate exempts from licensed band letter Road.

The first information processing module 14 connecting with the first judgment module 13 is for realizing following functions.(1) It calculates in real time and exempts from the handling capacity of second data information transmitted in licensed band subchannel in the candidate.(2) judge institute Whether the handling capacity of second data information of transmission is more than or equal to the first handling capacity maximum value of the second data information, if It is then to suspend transmission second data information, if it is not, then transmitting less than maximum equal to the first handling capacity of the second data information The second data information to be sent of value.Wherein, it is logical to can refer to WiFi for the first handling capacity maximum value of second data information Believe the setting of Systems Theory peak transfer rate.(3) it enables the LTE/LTE-U communication system enter wait state, is waited default It is listened in period and competes the candidate with the presence or absence of first data information and exempt from licensed band subchannel, if so, described in enabling LTE/LTE-U communication system discharges the candidate and exempts from licensed band subchannel；If it is not, then judging whether that there are still to be sent Two data informations, if so, enabling the LTE/LTE-U communication system by the handling capacity maximum value of second data information from One handling capacity maximum value is improved to the second handling capacity maximum value, continues to transmit second data information；If it is not, described in then enabling LTE/LTE-U communication system stops the second data information of transmission, terminates transmission.

The parsing module 15 connecting with the first judgment module 13 is used to parse the object of the WiFi communication system " signal " field and " length " field for managing layer convergence protocol (PLCP) frame originating point information, i.e., according to " SINGNAL " of the PLCP The message transmission rate and data length of the first data information of field and " LENGTH " field analysis, estimate the WiFi communication system The data volume of system the first data information of transmission.Or in this implementation in, the parsing module 15 is also used to pass through frequency spectrum (2.4GHz and 5GHz) and Signal coding (OFDM, FHSS, DSSS or HR-DSSS etc.) determine network attribute, and then estimate WiFi The data volume of the first data information of communications system transmission.

Second judgment module 16 connecting with the parsing module 15 according to the parsing module 15 for parsing To the data volume of the first data information of WiFi communication system transmission judge that the candidate exempts from licensed band subchannel Whether undercapacity state is in.If non-full in the data volume that the candidate exempts from the first data information in licensed band subchannel It carries, then calls the second message processing module 17；If exempting from the number of the first data information in licensed band subchannel in the candidate It is fully loaded according to amount, then call third message processing module 18.

Second message processing module 17 connecting respectively with the parsing module 15 and the second judgment module 16 is used for Exempt from the information processing manner processing that licensed band subchannel is in undercapacity state according to the pre-set candidate.Described Two message processing modules 17 complete following functions: (1) after the WiFi communication system terminate the transmission of first data information after, Default listen in the time interval for exempting from licensed band subchannel exempts from the first data of licensed band subchannel transmission according to the candidate The data volume of information with obtain WiFi communication system in end of transmission described in the first data information moment instantaneous transmission speed r_WiFi, and transmit the first data information period in WiFi communication system average transmission rate

(2) described in occupying Candidate exempts from licensed band subchannel to transmit second data information, and LTE/LTE-U communication is obtained in transmission process System in end of transmission described in the second data information moment instantaneous transmission speed r_LTE/LTE-U, and transmitting the second data letter The average transmission rate of LTE/LTE-U communication system in the period of breath

(3) if second data information One data slot end of transmission, and meet first resource dispatching criterion, then the LTE/LTE-U communication system pause described second The transmission of data information.In the present embodiment, the first resource dispatching criterion can use the first ratio equity criterion, i.e.,

(4) enter wait state, and listen in the default waiting period with the presence or absence of described first Data information competes the candidate and exempts from licensed band subchannel；Exempt from if so, the LTE/LTE-U communication system is enabled to discharge the candidate Licensed band subchannel is to transmit first data information.Second message processing module 17 continues to call the parsing mould Block parses the physical layer convergence protocol frame originating point information of the WiFi communication system, detects a data slice of first data information Whether the logical value and detecting whether of end of transmission receives confirmation message to section, and the logical value includes completing logical value and not completing Logical value, i.e. the first data information transfer complete logical value and the first data information transfer does not complete logical value.The completion is patrolled When collecting value and be equal to 0, and receiving confirmation message, a data slot end of transmission of first data information is indicated；It is described not complete It is equal to 1 at logical value, indicates that a data slot of first data information does not transfer；Detect first data information A data slot whether the logical value of end of transmission include when detecting the unfinished logical value, continue transmission first number It is believed that breath, until detecting the completion logical value and receiving confirmation message or do not receive confirmation message, but waits report to be confirmed Time required for text transmits.If detect in this step first data information a data slot whether end of transmission Logical value be to complete logical value (indicate transmitting the first data information transfer terminate) and confirmation message or do not receive Confirmation message, but when the time required for waiting confirmation message transmission, and meet Secondary resource dispatching criterion, then described second believes Breath processing module 17 continues to determine whether that there are still second data informations to be sent, if so, enabling the LTE/LTE-U Communications system transmission the second data information to be sent；If it is not, the LTE/LTE-U communication system is enabled to stop the second data of transmission Information journey.In the present embodiment, the Secondary resource dispatching criterion can use the second ratio equity criterion, i.e.,

In the present embodiment, the first ratio equity criterion and the second ratio equity criterion are by following What two derivations of equation came out, that is, define ratio fair throughput utility function are as follows:

It indicates Operate in Mean Speed of each system for exempting from licensed band subchannel in transmitting data information, r_iIt (t) is in t moment system i Interior all devices are exempting from the sum of the momentary rate in licensed band subchannel.In order to make T_PFReach maximum value, is equivalent to solve

Maximum value.As an example it is assumed that known WiFi and LTE/LTE-U is exempting from licensed band subchannel transmitting data,With

The average transmission rate of WiFi and LTE/LTE-U system in respectively certain time, then

r_WiFiAnd r_LTE/LTE-URespectively t moment WiFi and LTE/LTE-U system it is instantaneous Transmission rate, in order to obtain system and velocity maximum, household base station needs to compare t moment in LTE/LTE-U communication system

With

Size, household base station is preferentially by subchannel distribution to big system is worth, i.e.,

Subchannel is then used for WiFi data transmission；Otherwise subchannel is transmitted for cellular data.Work as WiFi When equipment completes data slot transmission, the WiFi rate r of household base station record at this time in LTE/LTE-U communication system_WiFi, And Mean Speed

Meanwhile household base station can directly occupy this and exempt to permit subchannel in LTE/LTE-U communication system Frequency spectrum resource.Similarly, when cellular data segment terminates to transmit (and corresponding LTE/LTE-U frame end of transmission), base station recordAnd r_LTE/LTE-U.In this step, it may be implemented using the first ratio equity criterion and the second ratio equity criterion Licensed band resource is exempted from WiFi communication system and LTE/LTE-U Communications System User grade ratio justice use.If described default It first data information has not been listened in waiting period competes the candidate and exempted from licensed band subchannel, then described in indicating Candidate exempts from licensed band subchannel and is in idle condition, and second message processing module 17 judges whether that there are still to be sent Second data information, if so, the second data information for enabling the LTE/LTE-U communications system transmission to be sent；If it is not, The LTE/LTE-U communication system is then enabled to stop the second data information of transmission.

The third message processing module 18 connecting with second judgment module 16 is exempted from for listening to the candidate The data volume full load of the first data information in licensed band subchannel enables the LTE/LTE-U communication system temporarily abandon It occupies the candidate and exempts from licensed band subchannel.

It is of the present invention that so that different communication systems is coexisted in the realization method and system exempted from licensed band real Existing following benefit:

So the present invention effectively overcomes various shortcoming in the prior art and has high industrial utilization value.

The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as At all equivalent modifications or change, should be covered by the claims of the present invention.

Claims

1. one kind can make different communication systems coexist in the implementation method exempted from licensed band, it is applied to by wireless access point and station First communication system of point composition and the communication network that is made of the second communication system that base station and user terminal form, described the One communication system is used for transmission the first data information, and second Communications System User transmits the second data information, and described first Communication system have it is multiple do not overlap exempt from licensed band subchannel, which is characterized in that it is described to be total to different communication systems Being stored in the implementation method exempted from licensed band includes:

Exempt from licensed band subchannel existing for listening in the preset range of second communication system；

According to alternative conditions, in multiple one or more exempted from selection in licensed band subchannel and meet the alternative conditions Candidate exempts from licensed band subchannel；

Exempt from the number of licensed band subchannel transmission first in the time interval for exempting from licensed band subchannel according in default listen to It is believed that the data volume of breath judges that the candidate exempts from whether licensed band subchannel is in idle condition；

If so, occupying the candidate exempts from licensed band subchannel to transmit second data information, and according to setting in advance The candidate set exempts from the information processing manner processing that licensed band subchannel is in idle condition；

If it is not, continuing to judge that the candidate exempts from whether licensed band subchannel is in undercapacity state；If so, according to setting in advance The candidate set exempts from the information processing manner processing that licensed band subchannel is in undercapacity state；If it is not, then temporarily abandoning It occupies the candidate and exempts from licensed band subchannel.

2. according to claim 1 make different communication systems coexist in the implementation method exempted from licensed band, feature Be: the pre-set candidate exempts from the information processing manner that licensed band subchannel is in idle condition and includes:

It calculates in real time and exempts from the handling capacity of second data information transmitted in licensed band subchannel in the candidate；

Judge whether the handling capacity of second data information transmitted is more than or equal to the first handling capacity of the second data information Maximum value is listened in default waiting period with the presence or absence of described first if so, second data information is transmitted in pause Data information competes the candidate and exempts from licensed band subchannel, if so, discharging the candidate exempts from licensed band subchannel；If it is not, Then judge whether that there are still the second data informations to be sent, if so, by the handling capacity maximum value of second data information It improves to the second handling capacity maximum value, continues to transmit second data information；If it is not, then stop transmitting the second data information, End process.

3. according to claim 2 make different communication systems coexist in the implementation method exempted from licensed band, feature Be: if the handling capacity of second data information transmitted less than the first handling capacity maximum value of the second data information, Transmit less than the second data information to be sent of the first handling capacity maximum value equal to the second data information.

4. according to claim 1 make different communication systems coexist in the implementation method exempted from licensed band, feature It is: can be by " signal " field and " length " word of the physical layer convergence protocol frame originating point information of parsing first communication system Section estimates the data volume of first the first data information of communications system transmission to judge whether the candidate exempts from licensed band subchannel In undercapacity state.

5. according to claim 1 make different communication systems coexist in the implementation method exempted from licensed band, feature Be: the pre-set candidate, which exempts from licensed band subchannel and is in the information processing manner of undercapacity state, includes:

After terminating the transmission of the first data information, listened in the time interval for exempting from licensed band subchannel according to default Candidate exempts from the data volume of the first data information of licensed band subchannel transmission；

It occupies the candidate and exempts from licensed band subchannel to transmit second data information；

If a data slot end of transmission of second data information, and meet first resource dispatching criterion, then described in pause The transmission of second data information；

Listened in the default waiting period with the presence or absence of first data information compete the candidate exempt from licensed band son Channel；If so, discharging the candidate exempts from licensed band subchannel to transmit first data information；If not, then it represents that institute It states candidate and exempts from licensed band subchannel and be in idle condition, judge whether that there are still second data informations to be sent, if It is then to transmit the second data information to be sent；If it is not, then stopping transmitting the second data information, terminate process.

6. according to claim 1 make different communication systems coexist in the implementation method exempted from licensed band, feature It is: exempts to further include parsing institute in the step of licensed band subchannel is to transmit first data information discharging the candidate The physical layer convergence protocol frame originating point information of the first communication system is stated, whether the data slot for detecting first data information passes Complete logical value is finished, if whether the logical value of end of transmission is to complete logic to a data slot of first data information Value, and meet Secondary resource dispatching criterion, then continue to determine whether that there are still second data informations to be sent, if so, Then transmit the second data information to be sent；If it is not, then stopping transmitting the second data information, terminate process.

7. according to claim 6 make different communication systems coexist in the implementation method exempted from licensed band, feature Be: the logical value includes the completion logical value and unfinished logical value, and the completion logical value is equal to 0, described in expression One data slot end of transmission of the first data information；The unfinished logical value is equal to 1, indicates first data information One data slot does not transfer；Detect first data information a data slot whether the step of the logical value of end of transmission It suddenly include continuing to transmit the first data information, until detecting the completion logic when detecting the unfinished logical value Value.

8. one kind can make different communication systems coexist in the realization system exempted from licensed band, it is applied to by wireless access point and station First communication system of point composition and the communication network that is made of the second communication system that base station and user terminal form, described the One communication system is used for transmission the first data information, and second Communications System User transmits the second data information, and described first Communication system have it is multiple do not overlap exempt from licensed band subchannel, which is characterized in that it is described to be total to different communication systems Being stored in the realization system exempted from licensed band includes:

Module is listened to, existing exempts from licensed band subchannel for listening in the preset range of second communication system；

Selecting module described exempt from selection in licensed band subchannel and meets the alternative conditions according to alternative conditions multiple One or more candidates exempt from licensed band subchannel；

First judgment module, for exempting from licensed band according in default listen in the time interval for exempting from licensed band subchannel The data volume of the first data information of subchannel transmission judges that the candidate exempts from whether licensed band subchannel is in idle condition；If It is then to enable second communication system occupy the candidate to exempt from licensed band subchannel to transmit second data information, And it calls first information processing module that it is made to exempt from licensed band subchannel according to the pre-set candidate and is in idle condition Information processing manner processing；If it is not, the second judgment module is then called to continue to judge that the candidate exempts from licensed band subchannel and is It is no to be in undercapacity state；If so, calling third message processing module that it is made to exempt to permit according to the pre-set candidate Frequency range subchannel is in the information processing manner processing of undercapacity state；If it is not, second communication system is then enabled temporarily to abandon It occupies the candidate and exempts from licensed band subchannel.

9. according to claim 8 make different communication systems coexist in the realization system exempted from licensed band, feature Be: the first information processing module for calculating exempt to transmit in licensed band subchannel in the candidate described the in real time The handling capacity of two data informations；Judge whether the handling capacity of second data information transmitted is more than or equal to the second data letter First handling capacity maximum value of breath, if so, enabling the second communication system pause transmit second data information, default It is listened in waiting period and competes the candidate with the presence or absence of first data information and exempt from licensed band subchannel, if so, releasing It puts the candidate and exempts from licensed band subchannel；If it is not, then judge whether that there are still the second data informations to be sent, if so, The handling capacity maximum value of second data information is improved to the second handling capacity maximum value, continues to transmit the second data letter Breath；If it is not, second communication system is then enabled to stop defeated second data information.

10. according to claim 8 make different communication systems coexist in the realization system exempted from licensed band, feature Be: the realization system further includes the Second processing module connecting with second judgment module, for logical to described first After the transmission for believing the first data information of system finishing, enables second communication system occupy the candidate and exempt from licensed band subchannel To transmit second data information；If a data slot end of transmission of second data information, and meet the first money Source dispatching criterion then enables second communication system suspend the transmission of second data information；In the default waiting time It is listened in section and competes the candidate with the presence or absence of first data information and exempt from licensed band subchannel；If so, enabling described second Communication system discharges the candidate and exempts from licensed band subchannel to transmit first data information；If not, then it represents that the time Choosing is exempted from licensed band subchannel and is in idle condition, and judging second communication system, whether there are still to be sent described second Data information, if so, the second data information for enabling second communications system transmission to be sent；If it is not, then enabling described second Communication system stops the second data information of transmission, terminates process.