CN104010319B - A kind of cognitive radio system interference processing method and equipment - Google Patents
A kind of cognitive radio system interference processing method and equipment Download PDFInfo
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- CN104010319B CN104010319B CN201310062207.7A CN201310062207A CN104010319B CN 104010319 B CN104010319 B CN 104010319B CN 201310062207 A CN201310062207 A CN 201310062207A CN 104010319 B CN104010319 B CN 104010319B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention discloses a kind of cognitive radio system interference processing method and equipment.This method：CR systems obtain the signal emission parameter of authoring system；The part that the CR systems determine to be disturbed by the authoring system in CR system subframes according to the signal emission parameter of the authoring system got；The CR systems are carried out interference processing according in CR system subframes by the part that the authoring system disturbs；The interference processing includes first method interference processing operation or second method interference processing operation, the first method interference processing operation comprises at least to be stopped sending signal in CR system subframes by the part of authoring system interference, the second method interference processing operation is to stop the transmission of strong jamming subframe, wherein, strong jamming subframe is to be determined according in CR system subframes by the part that the authoring system disturbs.The signal interference between cognitive radio system and authoring system can be reduced using the present invention.
Description
Technical field
The present invention relates to wireless communication field, more particularly to a kind of cognitive radio system interference processing method and equipment.
Background technology
Radio communication frequency spectrum is a kind of valuable natural resources, with the very fast development of wireless communication technology, frequency spectrum money
The problem of source is poor getting worse, in order to alleviate the nervous present situation of frequency spectrum resource, related department and agency is to radio communication frequency
Spectrum monitor and study, find some frequency ranges (such as TV band) in most of time and it is unused or most of
In region and it is not used, and then there is the use of multisystem multi-user while the situation, i.e. frequency spectrum resource of competition in some frequency ranges
Unbalanced phenomenon be present.The concept of cognitive radio (CR, Cognitive Radio) is exactly caused under this background,
CR technologies can improve frequency spectrum service efficiency and the flexibility of wireless communication system, and its basic thought is：Obtain authoring system
Frequency spectrum service condition, and the emission parameter of CR systems is adjusted accordingly, ensure authoring system not by harmful interference, while ensure CR
The performance of system itself.
The conventional operation mode of CR systems is directed to scene (such as radio and television system that authoring system time domain is persistently launched at present
System) design, working method is：Determine blank frequency spectrum (the untapped frequency spectrum of authoring system), access blank frequency spectrum work；When CR systems
System finds authoring system when being reappeared on currently used blank frequency spectrum (source working frequency points), and CR systems exit currently used
Blank frequency spectrum, and by whole CR systems be switched on other blank frequency spectrums (target operation frequency) recover business process,
When in the absence of blank frequency spectrum, CR system stalls.
In practical application, on the one hand, the signal transmission power of some authoring systems is very big, and (such as radar transmission power can reach
Hundreds of kilowatts), for such authoring system, in the neighbouring geographic area of authoring system emitter, not only authoring system emitter
Current emission band is disturbed, and its adjacent frequency or secondary adjacent frequency or even whole frequency band all can be by the capable and experienced of authoring system transmitter signal
Disturb；On the other hand, the transmission signal of these authoring systems is discontinuous, periodic transmission (such as radar system signal in time domain
For time domain impulsive signals), CR systems are in the authoring system signal transmitting duration within each authoring system signal period, meeting
Exist between authoring system and interfere.
For example, authoring system is radar system, CR systems are TD (Time Division, time domain)-LTE-CR systems；Its
In, TD-LTE subframe lengths are 1ms, and 2 time slots are included in a subframe, 12 or 14 OFDM are included in a subframe
(Orthogonal Frequency Division Multiplexing, OFDM) or SC-FDMA (Single-
Carrier Frequency-Division Multiple Access, single-carrier frequency division multiple access) symbol.Radar transmission power can
Reach hundreds of kilowatts, cause around radar transmitter in sizable geographic area present band or adjacent frequency or secondary adjacent frequency or even whole
Individual frequency band is disturbed；And radar signal is time domain impulsive signals, time domain is discontinuous, and the time domain cycle is generally 0.05~20ms, allusion quotation
For type value in 0.5ms~2ms or so, pulse width is divided into long pulse and short pulse, and long pulse is usually no more than tens μ s, short arteries and veins
Rush then close to 1 μ s or so, it can be seen that：The cycle of radar signal, long pulse can be competent close to TD-LTE subframe lengths
OFDM or SC-FDMA symbol or so is disturbed, and short pulse then disturbs 1/the tens of an OFDM or SC-FDMA symbol.
Traditional CR working methods are the Scenario Designs persistently launched for authoring system time domain, do not account for authorizing system
Unite in the feature of time domain periodic transmitting, therefore when authoring system transmission power is very big, CR systems are in authoring system emitter
Neighbouring geographic area can not find blank frequency spectrum work, can only stop runing, have impact on the Consumer's Experience of CR systems.
The content of the invention
The embodiments of the invention provide a kind of cognitive radio system interference processing method and equipment, to reduce cognition nothing
Signal interference between line electric system and authoring system.
A kind of CR system interferences processing method provided in an embodiment of the present invention, including：
CR system network equipments obtain the signal emission parameter of authoring system；
The CR system network equipments are determined in CR system subframes according to the signal emission parameter of the authoring system got
The part disturbed by the authoring system；
The CR system network equipments are disturbed according in CR system subframes by the part that the authoring system disturbs
Processing；The interference processing includes first method interference processing operation or second method interference processing operation, the first method
Interference processing operation comprises at least the part disturbed in CR system subframes by the authoring system and stops sending signal, described
Second method interference processing operation is to stop the transmission of strong jamming subframe, wherein, strong jamming subframe is according in CR system subframes
Determined by the part that the authoring system disturbs.
Another CR system interferences processing method provided in an embodiment of the present invention, including：
CR system terminals equipment obtains the signal emission parameter of authoring system；
The CR system terminals equipment is determined in CR system subframes according to the signal emission parameter of the authoring system got
The part disturbed by the authoring system；
The CR system terminals equipment is disturbed according in CR system subframes by the part that the authoring system disturbs
Processing；The interference processing includes first method interference processing operation or second method interference processing operation, the first method
Interference processing operation comprises at least the part disturbed in CR system subframes by the authoring system and stops sending signal, described
Second method interference processing operation is to stop the transmission of strong jamming subframe, wherein, strong jamming subframe is according in CR system subframes
Determined by the part that the authoring system disturbs.
CR system network equipments provided in an embodiment of the present invention, including：
Acquisition module, for obtaining the signal emission parameter of authoring system；
Determining module, for being determined according to the signal emission parameter of the authoring system got in CR system subframes by institute
State the part of authoring system interference；
Processing module, for being carried out interference processing by the part that the authoring system disturbs according in CR system subframes；
The interference processing includes first method and disturbs processing operation or second method interference processing to operate, at the first method interference
Reason operation comprises at least to be stopped sending signal, the second party in CR system subframes by the part of authoring system interference
Formula interference processing operation for stop strong jamming subframe transmission, wherein, strong jamming subframe be according in CR system subframes by institute
State what the part that authoring system disturbs was determined.
CR system terminals equipment provided in an embodiment of the present invention, including：
Acquisition module, for obtaining the signal emission parameter of authoring system；
Determining module, for being determined according to the signal emission parameter of the authoring system got in CR system subframes by institute
State the part of authoring system interference；
Processing module, for being carried out interference processing by the part that the authoring system disturbs according in CR system subframes；
The interference processing includes first method and disturbs processing operation or second method interference processing to operate, at the first method interference
Reason operation comprises at least to be stopped sending signal, the second party in CR system subframes by the part of authoring system interference
Formula interference processing operation for stop strong jamming subframe transmission, wherein, strong jamming subframe be according in CR system subframes by institute
State what the part that authoring system disturbs was determined.
The above embodiment of the present invention, CR systems are by obtaining the signal emission parameter of authoring system, and according to the parameter
The part disturbed in subframe by authoring system is determined, and then takes interference processing operation, so as to make full use of the hair of authoring system
Signal period property feature is penetrated, is not worked in the transmitting duration in authoring system signal transmit cycle, on the one hand avoids doing
Authoring system is disturbed, on the other hand avoids CR systems from being disturbed by authoring system.
Brief description of the drawings
Fig. 1 is the interference handling process schematic diagram for the CR systems that the embodiment of the present invention one provides；
Fig. 2 is the signal and signal parameter schematic diagram of the authoring system in the embodiment of the present invention；
Fig. 3 is the interference handling process schematic diagram for the CR systems that the embodiment of the present invention two provides；
Fig. 4 is the interference handling process schematic diagram for the CR systems that the embodiment of the present invention three provides；
Fig. 5 is the structural representation of CR system network equipments provided in an embodiment of the present invention；
Fig. 6 is the structural representation of CR system terminals equipment provided in an embodiment of the present invention.
Embodiment
The embodiments of the invention provide processing scheme is disturbed in a kind of cognitive radio system, in the program, CR systems exist
During the neighbouring geographical regional work of authoring system emitter, the transmission signal periodic characteristics of authoring system are made full use of, are being awarded
Do not worked in transmitting duration in power system signal transmit cycle, on the one hand avoid disturbing authoring system, on the other hand keep away
Exempt from CR systems to be disturbed by authoring system, so that ensure that authoring system and the Consumer's Experience of CR systems.
Technical solution of the present invention is applied to the LTE system using CR technologies, TD-SCDMA (Time Division-
Synchronous Code Division Multiple Access, TD SDMA) system, GSM (Global
System of Mobile communication, global system for mobile communications), WCDMA (Wideband Code Division
Multiple Access, WCDMA), CDMA-2000 and WRAN (Wireless Regional Area Network,
Radio area network) etc. wireless communication system, and the evolution system that system above is following.
The embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
Embodiment one
Referring to Fig. 1, the interference handling process schematic diagram of the CR systems provided for the embodiment of the present invention one.With CR in the flow
Base station equipment in system as being described exemplified by the executive agent of the flow, the executive agent of the flow can also be it is other can
Realize the network equipment of interference processing operation, such as RNC (Radio Network Controller, radio network controller).
As illustrated, the flow may include following steps 101~103：
Step 101：The base station of CR systems obtains the signal emission parameter of authoring system.
Specifically, the signal emission parameter of authoring system includes but is not limited to：The signal period length of authoring system
InterferPeriod, signal emission duration length InterferDurationPerPeriod in each signal period, with
And InterferStartTimeOffset is offset relative to the transmitting time started of CR systems, it can also further comprise：Transmitting is held
Continuous time span InterferTotalDuration.Fig. 2 gives the signal of authoring system and the schematic diagram of signal parameter.Its
In, transmitting time started skew InterferStartTimeOffset refers on the basis of the reference subframe of CR systems, authorizes system
The start time point of the transmission signal of system refers to the offset of subframe start time point with this.
The base station of CR systems can obtain the signal emission parameter of authoring system in several ways, including but not limited to
Following several ways：
Mode one：Frequency spectrum perception mode.Such as authoring system frequency of the base station of CR systems according to received by frequency spectrum perception
Signal on point, by the study statistic processes of a period of time, count the above-mentioned signal emission parameter of authorized system.
Mode two：Access database mode.For example there is authoring system signal emission parameter the base station of CR systems from record
The signal emission parameter of data base querying mandate interference system, or record have the database of authoring system signal emission parameter will
The signal emission parameter of interference system is authorized to be pushed to the base station of CR systems.
Mode three：Authoring system assist mode.For example the base station of CR systems is to the authoring system acquisition request authoring system
Signal emission parameter.
Step 102：The base station of CR systems determines to be awarded in CR system subframes according to the signal emission parameter of authoring system
Weigh the part of system interference.
Specifically, " determine what is disturbed in CR system subframes by authoring system according to the signal emission parameter of authoring system
The specific algorithm of part " is：Assuming that interference signal signal transmit cycle length is InterferPeriod, signal in each cycle
Emission duration length is InterferDurationPerPeriod, and the skew of transmitting time started is
InterferStartTimeOffset, then for transmitting time started skew InterferStartTimeOffset reference
N-th Subframe subframe (assuming that subframe time length is LengthSubframe) after frame, in n-th Subframe subframe
Met following constraints by the part that authoring system disturbs：
InterferStartTimeOffset+z*InterferPeriod≤t≤InterferStartTimeOffset+
InterferDurationPerPeriod+z*InterferPeriod (condition 1)
NSubframe*LengthSubframe≤t≤(nSubframe+1) * LengthSubframe (condition 2)
Wherein, z is integer.For example if nSubframe=1, determined according to above-mentioned condition 2：The 1st after subframe 1
In subframe by authoring system interference time domain scale in [LengthSubframe, 2*LengthSubframe] section (i.e.
In subframe 2)；According to above-mentioned condition 1, take z=0,1 ..., calculate t span, wherein with the place time domain scale weight of subframe 2
The time domain scale disturbed in the part of conjunction, as subframe 2 by authoring system.
Step 103：Taken according in CR system subframes by the part that authoring system disturbs at interference the base station of CR systems
Reason.Wherein, disturb processing mode to comprise at least the part stopping transmission signal for being authorized to system interference in subframe, or stop
The transmission of strong jamming subframe.
Specifically, the base station of CR systems can realize that interference is handled in the following ways：
Mode one：When the base station of CR systems carries out data mapping, mapped by the way of traditional, i.e. reflect transmitting data
It is mapped to all available resources positions in subframe；When carrying out signal transmission, the part for being authorized to system interference in subframe stops
Send signal.
Mode two：When the base station of CR systems carries out data mapping, mapped by the way of new, i.e. by transmitting data mapping
It is all in subframe to be not affected by the available resources position for authorizing interference；When carrying out signal transmission, it is authorized to system in subframe
The part of interference stops sending signal.Preferably, when the base station of CR systems carries out data mapping, some channels can be directed to using new
Mode map (that is, data will be launched be mapped to all be not affected by subframe authorize the available resources positions of interference), such as industry
Business channel (such as PUSCH (Physical uplink shared channel, the shared breath of physical uplink in LTE system
Road) and/or PDSCH (Physical downlink shared channel, Physical Downlink Shared Channel)).
Mode three：The base station of CR systems is judged whether subframe belongs to strong according in subframe by the part that authoring system disturbs
Interfering subframe, if subframe is strong jamming subframe, stop sending the strong jamming subframe.Judge whether subframe belongs to strong jamming
The algorithm of frame can be：If being carried crucial channel and/or key signal by the part of authoring system interference in subframe, sentence
The fixed subframe is strong jamming subframe, otherwise, it is determined that the subframe is not strong jamming subframe.
For LTE system, the key signal includes but is not limited to one below or combination：
Master sync signal or/and auxiliary synchronous signals；
Downlink reference signal；
Uplink reference signals；
The crucial channel includes but is not limited to one below or combination：
Broadcast channel (Physical broadcast channel, PBCH)；
Physical Downlink Control Channel (Physical downlink control channel, PDCCH)；
Physics HARQ (Hybrid Automatic Repeat Request, hybrid automatic repeat-request) indicates channel
(Physical hybrid-ARQ indicator channel, PHICH)；
Physical Control Format Indicator Channel (Physical control format indicator channel,
PCFICH)；
Physical Uplink Control Channel (Physical uplink control channel, PUCCH).
In the step 102 of above-mentioned flow, the base station of CR systems is after the signal emission parameter of authoring system is got, you can
The part for determining to be disturbed by authoring system in CR system subframes according to the signal emission parameter of authoring system.Preferably, CR systems
The base station of system also can be it is determined that authoring system occurs in current working frequency or will appear from, or the interference of authoring system surpasses
When crossing setting thresholding, determine to open the operation of interference processing.After determining to open the operation of interference processing, the base station of CR systems can
Start to determine the part disturbed by authoring system in CR system subframes.Wherein, the base station of CR systems can pass through frequency spectrum perception, number
According to the mode such as storehouse notice or authoring system assistance, judge whether authoring system occurs in current working frequency or whether will go out
Show, or whether the interference of authoring system exceedes setting thresholding.
In the step 103 of above-mentioned flow, it is preferred that the base station of CR systems can it is determined that authoring system in current working frequency
It is upper appearance or i.e. will appear from, or authoring system interference exceed setting thresholding when, determine open interference processing operation, i.e.
Interference is taken to handle by the part that authoring system disturbs according in CR system subframes.
Further, in above-mentioned flow, the base station of CR systems can make an appointment " interference processing duration ", for indicating
Interference processing is opened to the time span for terminating interference processing, it is preferred that the value of " interference processing duration " can be equal to hair
Penetrate duration InterferTotalDuration.The base station of CR systems can start to count after the operation of interference processing is opened
When, when the time span that timing duration reaches indicated by " interference processing duration ", the CR system finishing embodiment of the present invention
The above-mentioned interference processing operation provided, i.e. no longer to being performed interference processing by the part of authoring system interference in subsequent subframe.
Embodiment two
On the basis of embodiment one, embodiment two has carried out further optimization, to realize that network side and end side are synchronous
Interference processing is carried out, so as to further reduce the signal interference between CR systems and authoring system.
Referring to Fig. 3, the interference handling process schematic diagram of the CR systems provided for the embodiment of the present invention two.With CR in the flow
Base station equipment in system as being described exemplified by the executive agent of the flow, the executive agent of the flow can also be it is other can
Realize the network equipment of interference processing operation, such as RNC.As illustrated, the flow may include following steps 301~304：
Step 301：The base station of CR systems obtains the signal emission parameter of authoring system.The specific implementation of this step is same
Step 101 in Fig. 1.
Step 302：The base station of CR systems notifies the signal emission parameter of the authoring system got to the end in cell
End.
Specifically, the base station of CR systems notifies the authoring system signal emission parameter to terminal may include：Authoring system
Signal period length InterferPeriod, signal emission duration length in each signal period
InterferDurationPerPeriod, and transmitting time started skew InterferStartTimeOffset.Further
, base station notifies the authoring system signal emission parameter to terminal may also include：Emission duration length
InterferTotalDuration。
The base station of CR systems can send authoring system signal emission parameter by broadcast message to terminal.In LTE system,
Existed system block of information (SIB, System Information Block) (such as SIB1 and SIB2) bearer authorization system can be used
Signal emission parameter, it is possible to use the SIB bearer authorization system signal emission parameters newly defined.
Step 303：The base station of CR systems and terminal, determined according to the signal emission parameter of authoring system in CR system subframes
The part disturbed by authoring system.Wherein determine that the specific algorithm of the part in CR system subframes by authoring system interference is same
Step 102 in Fig. 1.
Step 304：The base station of CR systems and terminal, taken according in CR system subframes by the part that authoring system disturbs
Interference is handled.
Specifically, interference processing mode can be：In the downstream direction, base station stops the transmission of strong jamming subframe, terminal
The reception of strong jamming subframe can also be stopped by carrying out signal detection and reception, terminal according to existing way；Or/and in up side
Upwards, terminal stops the transmission of strong jamming subframe, and base station carries out signal detection and reception, base station according to existing way to stop
The only reception of strong jamming subframe.Wherein, judge whether subframe belongs to the mode of strong jamming subframe and be the same as those described above, as basis for estimation
Crucial channel and/or key signal, can be made an appointment in advance on the base station of CR systems and terminal, it is more quiet than such as by agreement
State provides, also can as CR system base-stations by crucial channel and/or key signal described in signaling the terminal in cell, or
The crucial channel and/or key signal described in notice terminal that broadcast the message are passed through as CR system base-stations.
Interference processing mode can also be：In the downstream direction, base station part of authorized system interference in subframe is stopped
Signal is only sent, terminal carries out signal detection and reception, terminal according to existing way can also be authorized to system in subframe and do
The part disturbed stops reception signal；Or/and in the upstream direction, the part that terminal is authorized to system interference in subframe stops
Signal is sent, base station carries out signal detection and reception, base station according to existing way can also be authorized to system interference in subframe
Part stop reception signal.
The processing mode specifically, base station of CR systems and terminal can make an appointment, realized according to the processing mode of agreement dry
Disturb processing.The processing mode arranged can include following several：
Mode one：In the downstream direction, when the base station of CR systems carries out data mapping, mapped by the way of traditional, i.e.
Transmitting data are mapped to all available resources positions in subframe；When carrying out signal transmission, authorized system is done in subframe
The part disturbed stops sending signal.The terminal of CR systems is when carrying out signal reception, it is believed that is authorized to system interference in subframe
Partly whole decoding errors, ignore the part.
Mode two：In the downstream direction, when the base station of CR systems carries out data mapping, mapped by the way of new, i.e. will
Transmitting data are mapped to all available resources positions for being not affected by mandate interference in subframe；When carrying out signal transmission, in subframe
The part of interior authorized system interference stops sending signal.When the terminal of CR systems carries out signal reception, it is believed that awarded in subframe
Transmitting data are not present in the part for weighing system interference, ignore the part.Preferably, when the base station of CR systems carries out data mapping,
It can be mapped for some channels by the way of new, such as Traffic Channel (such as PUSCH and PDSCH in LTE system).
Mode three：In the upstream direction, when the terminal of CR systems carries out data mapping, mapped by the way of traditional, i.e.
Transmitting data are mapped to all available resources positions in subframe；When carrying out signal transmission, authorized system is done in subframe
The part disturbed stops sending signal.The base station of CR systems is in signal detection and reception, it is believed that is authorized to system interference in subframe
Part whole decoding error, ignore the part.
Mode four：In the upstream direction, when the terminal of CR systems carries out data mapping, mapped by the way of new, i.e. will
Transmitting data are mapped to all available resources positions for being not affected by authoring system interference in subframe；When carrying out signal transmission,
The part for being authorized to system interference in subframe stops sending signal.During the base station received signal of CR systems, it is believed that awarded in subframe
Transmitting data are not present in the part for weighing system interference, ignore the part.Preferably, when the terminal of CR systems carries out data mapping,
Some channels, such as Traffic Channel (such as being PUSCH and PDSCH in LTE system) can be directed to, using new resource impact
Mode.
Wherein, the base station of CR systems can be arranged above-mentioned processing mode with the following method with terminal：
Method one：Provided by the way that agreement is static；
Method two：Pass through dynamic notification mode：Base station is determined to the transmission and reception of the subframe disturbed by authoring system
Mode, and base station selected mode is sent to by signaling to the terminal in cell.Specifically, base station can be existed by broadcast message
After step 301, selected mode is notified to the terminal in cell.
In step 303 in above-mentioned flow, the base station of CR systems is after the signal emission parameter of authoring system is got, i.e.,
The part disturbed in CR system subframes by authoring system can be determined according to the signal emission parameter of authoring system；The end of CR systems
Hold after the signal emission parameter of authoring system of base station notice is received, you can true according to the signal emission parameter of authoring system
Determine the part disturbed in CR system subframes by authoring system.Determined in the base station of CR systems and terminal in CR system subframes by
To after the part of authoring system interference, you can taken according in CR system subframes by the part that authoring system disturbs at interference
Reason.
Further, in above-mentioned flow, the base station of CR systems and terminal can make an appointment and (such as be provided by the way that agreement is static)
" interference processing duration ", CR system base-stations also can be by the way that the advice method of broadcast or RRC signaling will " interference processing continues
Time " is notified to terminal.The implication and value of " interference processing duration " are the same as those described above.The base station of CR systems and terminal can be with
Start timing (timing is such as started for starting point with " interference processing entry-into-force time ") when starting and using interference to handle respectively, work as timing
When duration reaches the time span indicated by " interference processing duration ", the base station of CR systems and terminal terminate the present invention respectively
The above-mentioned interference processing operation that embodiment provides, i.e. no longer dry to being performed in subsequent subframe by the part of authoring system interference
Disturb processing.
Embodiment three
On the basis of embodiment two, embodiment three has carried out further optimization, to realize that network side and end side are synchronous
Interference processing is carried out, so as to further reduce the signal interference between CR systems and authoring system.
Referring to Fig. 4, the interference handling process schematic diagram of the CR systems provided for the embodiment of the present invention three.With CR in the flow
Base station equipment in system as being described exemplified by the executive agent of the flow, the executive agent of the flow can also be it is other can
Realize the network equipment of interference processing operation, such as RNC.As illustrated, the flow may include following steps 401~405：
Step 401：The base station of CR systems obtains the signal emission parameter of authoring system.The specific implementation of this step is same
Step 301 in Fig. 3.
Step 402：The base station of CR systems notifies the signal emission parameter of the authoring system got to the end in cell
End.The specific implementation of this step is the same as the step 302 in Fig. 3.
Step 403：Interference processing operation is opened in the base station decision-making of CR systems, and after determining to open interference processing operation,
Terminal into cell sends interference processing order, and interference processing operation is opened to instruction terminal.
Specifically, the base station of CR systems can by broadcast the message send interference processing order, also can by terminal-
Specific order (i.e. dedicated signaling) sends interference processing order, and when interference processing order uses terminal-Specific
Order send when, interference processing order can be carried by RRC signaling, can also be held by MAC layer or physical layer signaling such as CFI
Carry.
It may include in interference processing order：" interference processing entry-into-force time " and/or " interference processing duration ", " interference
The value and implication of processing entry-into-force time " and " interference processing duration " are the same as those described above.Certainly, " interference processing entry-into-force time "
And/or " interference processing duration " can also be made an appointment by the base station and terminal of CR systems, " the making an appointment " refers to：
The base station of CR systems provides that either base station is notified by way of broadcast or RRC signaling notice with terminal by the way that agreement is static
Terminal.
Preferably, the base station of CR systems can it is determined that authoring system occur in current working frequency or i.e. will appear from, or
When the interference of person's authoring system exceedes setting thresholding, determine that the operation for opening interference processing (then begins to perform and determines CR systems
The part disturbed in subframe by authoring system, and take the operation of interference treatment measures), and determining to open interference processing
After operation, on the one hand itself opens the operation of interference processing, and on the other hand the terminal into cell sends interference processing order.Enter
One step, base station can open the operation for disturbing processing according to " interference processing entry-into-force time ", and instruction terminal is according to " interference is handled
Entry-into-force time " opens the operation of interference processing.Wherein, the base station of CR systems can pass through frequency spectrum perception, database notification or mandate
The modes such as system helps, judge whether authoring system occurs in current working frequency or whether will appear from, or authorize system
Whether the interference of system exceedes setting thresholding.
Step 404：The base station of CR systems and terminal, determined according to the signal emission parameter of authoring system in CR system subframes
The part disturbed by authoring system.The specific implementation of this step is the same as the step 303 in Fig. 3.
Step 405：The base station of CR systems and terminal, taken according in CR system subframes by the part that authoring system disturbs
Interference is handled.The specific implementation of this step is the same as the step 304 in Fig. 3.
Further, the base station of CR systems can start timing when opening interference processing, when timing duration reaches " at interference
Manage the duration " indicated by time span when, terminate above-mentioned interference processing operation provided in an embodiment of the present invention.CR systems
Terminal can start timing when opening interference processing, when timing duration reaches the time length indicated by " interference processing duration "
When spending, terminate above-mentioned interference processing operation provided in an embodiment of the present invention.
Example IV
On the basis of embodiment three, example IV is simplified.Specifically, on the basis of embodiment three, implement
The base station that CR systems are eliminated in example four notifies the signal emission parameter of the authoring system got to the terminal in cell
Step, accordingly, it is necessary to what the base station comprising CR systems was got in the interference processing order transmitted by the base station of CR systems
The signal emission parameter of authoring system.The signal emission parameter of the authoring system included in interference processing order may include：Authorize
The signal period length InterferPeriod of system, signal emission duration length in each signal period
InterferDurationPerPeriod, and transmitting time started skew InterferStartTimeOffset, further
, it may also include：Emission duration length InterferTotalDuration.
Embodiment five
Embodiment five describes the interference handling process of the terminal of CR systems, and its handling process can refer to the place of embodiment one
Manage flow to realize, will not be described in detail herein.Wherein, the terminal of CR systems obtains the implementation of the signal emission parameter of authoring system
It can include：Authoring system is obtained by frequency spectrum perception mode, the access mode such as database mode or authoring system assist mode
Signal emission parameter；Or the base station of CR systems is notified to small after the signal emission parameter of authoring system is got
Terminal in area, so that the signal emission parameter of the authorized system of terminal；Or the base station of CR systems is getting mandate
After the signal emission parameter of system, by the terminal for disturbing processing order to send it in cell, so that terminal is awarded
The signal emission parameter of power system.
In summary various situations, table 1 show the message format and content of interference processing order.
Table 1
By above description as can be seen that in the technical scheme of the embodiment of the present invention, CR systems are in authoring system emitter
Neighbouring geographical regional work when, CR systems make full use of the transmission signal periodic characteristics of authoring system, authoring system believe
Do not worked in transmitting duration in number transmit cycle, or stopped receiving and transmitting signal by strongly disturbing subframe, on the one hand
Avoid disturbing authoring system, on the other hand avoid CR systems from being disturbed by authoring system, so that ensure that authoring system
And the Consumer's Experience of CR systems.
Based on identical technical concept, the embodiment of the present invention additionally provides a kind of CR systems that can be applied to above-described embodiment
Base station equipment and terminal device.
Referring to Fig. 5, for the structural representation of the network equipment of CR systems provided in an embodiment of the present invention.As illustrated, should
The network equipment may include：Acquisition module 51, determining module 52, processing module 53, wherein：
Acquisition module 51, for obtaining the signal emission parameter of authoring system；
Determining module 52, for determined according to the signal emission parameter of authoring system got in CR system subframes by
The part of the authoring system interference；
Processing module 53, for being carried out according in CR system subframes by the part that the authoring system disturbs at interference
Reason；The interference processing includes first method interference processing operation or second method interference processing operation, the first method are done
Disturb processing operation and comprise at least and stopped sending signal by the part of authoring system interference in CR system subframes, described the
Two modes disturb processing operation for stop strong jamming subframe transmission, wherein, strong jamming subframe be according in CR system subframes by
Determined to the part of authoring system interference.
Further, first method interference processing operation also includes used by processing module 53：Map the data into CR
The available resources position of the authoring system interference is not affected by system subframe.Preferably, processing module 53 can be by specified channel
Data be mapped to the available resources position that authoring system interference is not affected by CR system subframes.It is described in LTE system
Channel is specified to include PDSCH.
Further, first method interference processing operation also includes used by processing module 53：Abandon receiving CR systems
The data carried in subframe by the part of authoring system interference；Used second method interference processing operation is also wrapped
Include：Abandon receiving strong jamming subframe.
Specifically, determining module 52 according to CR system subframes by the authoring system disturb part determine it is capable and experienced
When disturbing subframe, if being carried crucial channel and/or key signal by the part of authoring system interference in CR system subframes, really
The fixed CR system subframes are strong jamming subframe.Wherein, the particular content of the crucial channel and key signal can be the same as those described above,
This is repeated no more.
Specifically, processing module 53 can it is determined that authoring system occur in current working frequency or i.e. will appear from, or
When the interference of authoring system exceedes setting thresholding, done according in CR system subframes by the part that the authoring system disturbs
Disturb processing.
Further, the equipment may also include notification module 54, for getting the signal emission parameter of authoring system
Afterwards, the signal emission parameter of the authoring system got is notified to the terminal in cell；And it is determined that authoring system is being worked as
In preceding working frequency points occur or i.e. will appear from, or authoring system interference exceed setting thresholding when, into cell terminal hair
Interference processing order is sent, is disturbed for instruction terminal according in CR system subframes by the part that the authoring system disturbs
Processing.Or notification module 54 is after acquisition module 51 gets the signal emission parameter of authoring system, it is determined that authoring system
In current working frequency occur or i.e. will appear from, or authoring system interference exceed setting thresholding when, the end into cell
End sends interference processing order, is carried out for instruction terminal according to the part disturbed in CR system subframes by the authoring system
Interference is handled, and the signal hair for the authoring system that the CR system network equipments are got is comprised at least in the interference processing order
Penetrate parameter.Preferably, notification module 54 can by broadcast message, by the signal emission parameter of the authoring system got notify to
Terminal in cell.In LTE system, the signal emission parameter of authoring system can be carried in broadcast message by notification module 54
System information block SIB1 or/and SIB2 in, or be carried in the system information block of extension.Notification module 54 can be disappeared by broadcast
Breath or dedicated signaling send the interference processing order, described dry when sending the interference processing order by dedicated signaling
Disturb processing order and be carried on RRC signaling or MAC layer or physical layer signaling.
Further, comprising the interference processing entry-into-force time in the interference processing order that notification module 54 is sent, it is used for
Instruction terminal is when reaching the interference processing entry-into-force time, according to the part disturbed in CR system subframes by the authoring system
Carry out interference processing.Accordingly, processing module 53 is when reaching the time indicated by the interference processing entry-into-force time, according to CR
Part in system subframe by authoring system interference carries out interference processing.
Further, comprising the interference processing duration in the interference processing order that notification module 54 is sent, it is used for
Instruction terminal from proceed by interference processing to the interference processing duration indicated by time span reach when stop into
Row interference is handled, and the time span indicated by the interference processing duration, the signal not less than the authoring system is launched
Time duration.Accordingly, processing module 53 starts timing after interference processing is proceeded by, when timing duration reaches described
After time span indicated by the interference processing duration, stopping carries out interference processing.
Specifically, the signal emission parameter that acquisition module 51 is got comprises at least：The signal period of authoring system
Length；In each signal period of authoring system, signal emission duration length；Authoring system relative to CR systems transmitting
Time started offsets.
Further, the signal emission parameter also includes：The signal emission duration length of authoring system.Accordingly,
Processing module 53 can start timing after interference processing is proceeded by, when timing duration reaches the signal transmitting of the authoring system
During time duration, stopping carries out interference processing.
Referring to Fig. 6, for the structural representation of the terminal device of CR systems provided in an embodiment of the present invention.As illustrated, should
Terminal device may include：Acquisition module 61, determining module 62, processing module 63, wherein：
Acquisition module 61, for obtaining the signal emission parameter of authoring system；
Determining module 62, for determined according to the signal emission parameter of authoring system got in CR system subframes by
The part of the authoring system interference；
Processing module 63, for being carried out according in CR system subframes by the part that the authoring system disturbs at interference
Reason；The interference processing includes first method interference processing operation or second method interference processing operation, the first method are done
Disturb processing operation and comprise at least and stopped sending signal by the part of authoring system interference in CR system subframes, described the
Two modes disturb processing operation for stop strong jamming subframe transmission, wherein, strong jamming subframe be according in CR system subframes by
Determined to the part of authoring system interference.
Further, the first method interference processing operation that processing module 63 uses also includes：Map the data into
The available resources position of the authoring system interference is not affected by CR system subframes.Preferably, processing module 63 is by specified channel
Data be mapped to the available resources position that authoring system interference is not affected by CR system subframes.It is described in LTE system
Channel is specified to include PUSCH.
Further, the first method interference processing operation that processing module 63 uses also includes：Abandon receiving CR systems
The data carried in system subframe by the part of authoring system interference.The second method that processing module 63 uses is done
Disturbing processing operation also includes：Abandon receiving strong jamming subframe.
Specifically, when determining module 62 determines strong jamming subframe, if by authoring system interference in CR system subframes
Part carries crucial channel and/or key signal, it is determined that the CR system subframes are strong jamming subframe.The crucial channel and pass
Illustrating for key signals is the same as those described above, and will not be repeated here.
Further, acquisition module 61 can also receive the interference processing order of CR system network equipments transmission；Processing module
The 63 interference processing orders sent according to the CR system network equipments received carry out interference processing.Wherein, the interference processing
Order is CR system network equipments it is determined that authoring system occurs in current working frequency or will appear from, or authoring system
Interference send when exceeding setting thresholding.The signal emission parameter of the authoring system is included in the interference processing order；
Or acquisition module 61 also receives the notice of CR system network equipments transmission before the interference processing order is received,
The signal emission parameter of the authoring system is included in the notice.The interference processing order is carried on broadcast message.In LTE
In system, the signal emission parameter of the authoring system is carried in the system information block SIB1 or/and SIB2 in broadcast message,
Or it is carried in the system information block of extension.
Specifically, acquisition module 61 can receive the interference processing order by broadcast message or dedicated signaling.Obtain mould
Block 61 by dedicated signaling receive it is described interference processing order when, it is described interference processing order be carried on RRC signaling or MAC layer or
Physical layer signaling.
Further, the interference processing entry-into-force time is included in the interference processing order.Accordingly, processing module 63 is in institute
The time indicated by the interference processing entry-into-force time is stated when reaching, according to the portion disturbed in CR system subframes by the authoring system
Divide and carry out interference processing.
Further, interference processing duration, the interference processing duration are included in the interference processing order
Indicated time span, not less than the signal emission duration length of the authoring system.Accordingly, processing module 63 exists
Start timing after proceeding by interference processing, when timing duration reaches the time span indicated by the interference processing duration
Afterwards, stop carrying out interference processing.
Specifically, the signal emission parameter comprises at least：The signal period length of authoring system；Authoring system it is each
In signal period, signal emission duration length；Authoring system is offset relative to the transmitting time started of CR systems.Further
, the signal emission parameter also includes：The signal emission duration length of authoring system.Accordingly, processing module 63 exists
Start timing after proceeding by interference processing, when timing duration reaches the signal emission duration length of the authoring system
When, stopping carries out interference processing.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can be by
Software adds the mode of required general hardware platform to realize, naturally it is also possible to which by hardware, but the former is more in many cases
Good embodiment.Based on such understanding, what technical scheme substantially contributed to prior art in other words
Part can be embodied in the form of software product, and the computer software product is stored in a storage medium, if including
It is dry to instruct to cause a station terminal equipment (be mobile phone, personal computer, server, or network equipment etc.) to perform sheet
Invent the method described in each embodiment.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
Depending on protection scope of the present invention.
Claims (49)
1. a kind of cognitive radio CR system interference processing methods, it is characterised in that methods described includes：
CR system network equipments obtain the signal emission parameter of authoring system；
The CR system network equipments according to the signal emission parameter of the authoring system got determine in CR system subframes by
The part of the authoring system interference；
The CR system network equipments are carried out interference processing according in CR system subframes by the part that the authoring system disturbs；
The interference processing includes first method and disturbs processing operation or second method interference processing to operate, at the first method interference
Reason operation comprises at least to be stopped sending signal, the second party in CR system subframes by the part of authoring system interference
Formula interference processing operation for stop strong jamming subframe transmission, wherein, strong jamming subframe be according in CR system subframes by institute
State what the part that authoring system disturbs was determined.
2. the method as described in claim 1, it is characterised in that the first method interference processing operation also includes：
The CR system network equipments map the data into CR system subframes the available money for being not affected by the authoring system interference
Source position.
3. method as claimed in claim 2, it is characterised in that the CR system network equipments map the data of specified channel
The available resources position of the authoring system interference is not affected by CR system subframes.
4. method as claimed in claim 3, it is characterised in that in Long Term Evolution LTE system, the specified channel includes thing
Manage DSCH Downlink Shared Channel PDSCH.
5. the method as described in claim 1, it is characterised in that the first method interference processing operation also includes：
The CR system network equipments abandon receiving what is carried in CR system subframes by the part of authoring system interference
Data；
The second method interference processing operation also includes：The CR system network equipments are abandoned receiving strong jamming subframe.
6. the method as described in claim 1, it is characterised in that according to what is disturbed in CR system subframes by the authoring system
Part determines strong jamming subframe, specifically includes：
If carried crucial channel and/or key signal by the part of authoring system interference in CR system subframes, it is determined that should
CR system subframes are strong jamming subframe.
7. method as claimed in claim 6, it is characterised in that in LTE system, the key signal include one below or
Combination：
Master sync signal or/and auxiliary synchronous signals；
Downlink reference signal；
Uplink reference signals；
The crucial channel includes one below or combination：
Broadcast channel PBCH；
Physical downlink control channel PDCCH；
Physical mixed HARQ HARQ instruction channels PHICH；
Physical Control Format Indicator Channel PCFICH；
Physical Uplink Control Channel PUCCH.
8. the method as described in claim 1, it is characterised in that the CR system network equipments according in CR system subframes by
The part of the authoring system interference carries out interference processing, is specially：
The CR system network equipments it is determined that authoring system occur in current working frequency or i.e. will appear from, or authorize system
When the interference of system exceedes setting thresholding, carried out according in CR system subframes by the part that the authoring system disturbs at interference
Reason.
9. the method as described in claim 1, it is characterised in that methods described also includes：
The CR system network equipments are after the signal emission parameter of authoring system is got, by the letter of the authoring system got
Number emission parameter is notified to the terminal in cell；
The CR system network equipments it is determined that authoring system occur in current working frequency or i.e. will appear from, or authorize system
When the interference of system exceedes setting thresholding, the terminal into cell sends interference processing order, for instruction terminal according to CR systems
Part in subframe by authoring system interference carries out interference processing；
Or methods described also includes：
After the CR system network equipments get the signal emission parameter of authoring system, it is determined that authoring system in work at present
Occur on frequency or will appear from, or when the interference of authoring system exceedes setting thresholding, terminal into cell sends interference
Processing order, interference processing is carried out by the part that the authoring system disturbs according in CR system subframes for instruction terminal；
The signal emission parameter for the authoring system that the CR system network equipments are got is comprised at least in the interference processing order.
10. method as claimed in claim 9, it is characterised in that the CR system network equipments will be obtained by broadcast message
To the signal emission parameter of authoring system notify to the terminal in cell.
11. method as claimed in claim 10, it is characterised in that in LTE system, the signal transmitting ginseng of the authoring system
Number is carried in the system information block SIB1 or/and SIB2 in broadcast message, or is carried in the system information block of extension.
12. method as claimed in claim 9, it is characterised in that when being come into force in the interference processing order comprising interference processing
Between, for instruction terminal when reaching the interference processing entry-into-force time, done according in CR system subframes by the authoring system
The part disturbed carries out interference processing；
The CR system network equipments are when reaching the time indicated by the interference processing entry-into-force time, according to CR system subframes
The interior part by authoring system interference carries out interference processing.
13. method as claimed in claim 9, it is characterised in that when continuing in the interference processing order comprising interference processing
Between, for instruction terminal when being reached from the time span proceeded by indicated by interference processing to interference processing duration
Stopping carries out interference processing；Time span indicated by the interference processing duration, not less than the letter of the authoring system
Number emission duration length；
Methods described also includes：The CR system network equipments start timing after interference processing is proceeded by, when timing duration
After reaching the time span indicated by the interference processing duration, stopping carries out interference processing.
14. method as claimed in claim 9, it is characterised in that the CR system network equipments pass through broadcast message or special
Signaling sends the interference processing order.
15. method as claimed in claim 14, it is characterised in that the CR system network equipments send institute by dedicated signaling
When stating interference processing order, the interference processing order is carried on radio resource control RRC signaling or media access control MAC layer
Or physical layer signaling.
16. the method as described in claim 1, it is characterised in that the signal emission parameter comprises at least：
The signal period length of authoring system；
In each signal period of authoring system, signal emission duration length；
Authoring system is offset relative to the transmitting time started of CR systems.
17. method as claimed in claim 16, it is characterised in that the signal emission parameter also includes：The letter of authoring system
Number emission duration length；
Methods described also includes：The CR system network equipments start timing after interference processing is proceeded by, when timing duration
When reaching the signal emission duration length of the authoring system, stopping carries out interference processing.
18. a kind of cognitive radio CR system interference processing methods, it is characterised in that methods described includes：
CR system terminals equipment obtains the signal emission parameter of authoring system；
The CR system terminals equipment according to the signal emission parameter of the authoring system got determine in CR system subframes by
The part of the authoring system interference；
The CR system terminals equipment is carried out interference processing according in CR system subframes by the part that the authoring system disturbs；
The interference processing includes first method and disturbs processing operation or second method interference processing to operate, at the first method interference
Reason operation comprises at least to be stopped sending signal, the second party in CR system subframes by the part of authoring system interference
Formula interference processing operation for stop strong jamming subframe transmission, wherein, strong jamming subframe be according in CR system subframes by institute
State what the part that authoring system disturbs was determined.
19. method as claimed in claim 18, it is characterised in that the first method interference processing operation also includes：
The CR system terminals equipment maps the data into CR system subframes the available money for being not affected by the authoring system interference
Source position.
20. method as claimed in claim 19, it is characterised in that the CR system terminals equipment reflects the data of specified channel
It is mapped to the available resources position that the authoring system interference is not affected by CR system subframes.
21. method as claimed in claim 20, it is characterised in that in Long Term Evolution LTE system, the specified channel includes
Physical Uplink Shared Channel PUSCH.
22. method as claimed in claim 18, it is characterised in that the first method interference processing operation also includes：It is described
CR system terminal equipment abandons receiving the data carried in CR system subframes by the part of authoring system interference；
The second method interference processing operation also includes：The CR system terminals equipment is abandoned receiving strong jamming subframe.
23. method as claimed in claim 18, it is characterised in that disturbed according in CR system subframes by the authoring system
Part determine strong jamming subframe, specifically include：
If carried crucial channel and/or key signal by the part of authoring system interference in CR system subframes, it is determined that should
CR system subframes are strong jamming subframe.
24. method as claimed in claim 23, it is characterised in that in LTE system, the key signal includes one below
Or combination：
Master sync signal or/and auxiliary synchronous signals；
Downlink reference signal；
Uplink reference signals；
The crucial channel includes one below or combination：
Broadcast channel PBCH；
Physical downlink control channel PDCCH；
Physical mixed HARQ HARQ instruction channels PHICH；
Physical Control Format Indicator Channel PCFICH；
Physical Uplink Control Channel PUCCH.
25. method as claimed in claim 18, it is characterised in that the CR system terminals equipment carries out interference processing, specifically
For：
The interference processing order that the CR system terminals equipment is sent according to the CR system network equipments received is carried out at interference
Reason；Wherein, the interference processing order be CR system network equipments it is determined that authoring system occur in current working frequency or
It will appear from, or the interference of authoring system exceedes what is sent during setting thresholding.
26. method as claimed in claim 25, it is characterised in that comprising the authoring system in the interference processing order
Signal emission parameter；
Or the CR system terminals equipment also receives CR system network equipments before the interference processing order is received
The notice of transmission, the signal emission parameter of the authoring system is included in the notice.
27. method as claimed in claim 25, it is characterised in that the interference processing order is carried on broadcast message.
28. method as claimed in claim 27, it is characterised in that in LTE system, the signal transmitting ginseng of the authoring system
Number is carried in the system information block SIB1 or/and SIB2 in broadcast message, or is carried in the system information block of extension.
29. method as claimed in claim 25, it is characterised in that when being come into force in the interference processing order comprising interference processing
Between；
The CR system terminals equipment is when reaching the time indicated by the interference processing entry-into-force time, according to CR system subframes
The interior part by authoring system interference carries out interference processing.
30. method as claimed in claim 25, it is characterised in that when continuing in the interference processing order comprising interference processing
Between, the time span indicated by the interference processing duration, not less than the signal emission duration of the authoring system
Length；
Methods described also includes：The CR system terminals equipment starts timing after interference processing is proceeded by, when timing duration
After reaching the time span indicated by the interference processing duration, stopping carries out interference processing.
31. method as claimed in claim 25, it is characterised in that the CR system terminals equipment passes through broadcast message or special
Signaling receives the interference processing order.
32. method as claimed in claim 31, it is characterised in that the CR system terminals equipment receives institute by dedicated signaling
When stating interference processing order, the interference processing order is carried on radio resource control RRC signaling or media access control MAC layer
Or physical layer signaling.
33. method as claimed in claim 18, it is characterised in that the signal emission parameter comprises at least：
The signal period length of authoring system；
In each signal period of authoring system, signal emission duration length；
Authoring system is offset relative to the transmitting time started of CR systems.
34. method as claimed in claim 33, it is characterised in that the signal emission parameter also includes：The letter of authoring system
Number emission duration length；
Methods described also includes：The CR system terminals equipment starts timing after interference processing is proceeded by, when timing duration
When reaching the signal emission duration length of the authoring system, stopping carries out interference processing.
A kind of 35. cognitive radio CR system network equipments, it is characterised in that including：
Acquisition module, for obtaining the signal emission parameter of authoring system；
Determining module, for determining to be awarded by described in CR system subframes according to the signal emission parameter of the authoring system got
Weigh the part of system interference；
Processing module, for being carried out interference processing by the part that the authoring system disturbs according in CR system subframes；It is described
Interference processing includes first method interference processing operation or second method interference processing operation, the first method interference processing behaviour
Make to comprise at least and stopped sending signal by the part of authoring system interference in CR system subframes, the second method is done
Processing operation is disturbed to stop the transmission of strong jamming subframe, wherein, strong jamming subframe is to be awarded according in CR system subframes by described
What the part of power system interference was determined.
36. equipment as claimed in claim 35, it is characterised in that first method interference is handled used by the processing module
Operation also includes：Map the data into CR system subframes and be not affected by the available resources position of the authoring system interference.
37. equipment as claimed in claim 35, it is characterised in that at the first method interference that the processing module uses
Reason operation also includes：Abandon receiving the data carried in CR system subframes by the part of authoring system interference；It is described
The second method interference processing operation that processing module uses also includes：Abandon receiving strong jamming subframe.
38. equipment as claimed in claim 35, it is characterised in that the determining module is specifically used for, it is determined that strong jamming is sub
During frame, if being carried crucial channel and/or key signal by the part of authoring system interference in CR system subframes, it is determined that should
CR system subframes are strong jamming subframe.
39. equipment as claimed in claim 35, it is characterised in that the processing module is specifically used for, it is determined that authoring system
In current working frequency occur or i.e. will appear from, or authoring system interference exceed setting thresholding when, according to CR systems son
Part in frame by authoring system interference carries out interference processing.
40. equipment as claimed in claim 35, it is characterised in that also including notification module；
The notification module, after getting the signal emission parameter of authoring system in the acquisition module, by what is got
The signal emission parameter of authoring system is notified to the terminal in cell；And it is determined that authoring system in current working frequency
Occur or will appear from, or when the interference of authoring system exceedes setting thresholding, terminal into cell sends interference processing life
Order, interference processing is carried out by the part that the authoring system disturbs according in CR system subframes for instruction terminal；
Or the notification module is used for, after the acquisition module gets the signal emission parameter of authoring system, it is determined that
Authoring system occurs in current working frequency or will appear from, or when the interference of authoring system exceedes setting thresholding, to small
Terminal in area sends interference processing order, for instruction terminal according to being disturbed in CR system subframes by the authoring system
Part carries out interference processing；The authoring system that the CR system network equipments are got is comprised at least in the interference processing order
Signal emission parameter.
41. equipment as claimed in claim 35, it is characterised in that the signal emission parameter comprises at least：
The signal period length of authoring system；
In each signal period of authoring system, signal emission duration length；
Authoring system is offset relative to the transmitting time started of CR systems.
42. equipment as claimed in claim 41, it is characterised in that the signal emission parameter also includes：The letter of authoring system
Number emission duration length；
The processing module is additionally operable to, and starts timing after interference processing is proceeded by, and system is authorized when timing duration reaches described
During the signal emission duration length of system, stopping carries out interference processing.
A kind of 43. cognitive radio CR system terminal equipment, it is characterised in that including：
Acquisition module, for obtaining the signal emission parameter of authoring system；
Determining module, for determining to be awarded by described in CR system subframes according to the signal emission parameter of the authoring system got
Weigh the part of system interference；
Processing module, for being carried out interference processing by the part that the authoring system disturbs according in CR system subframes；It is described
Interference processing includes first method interference processing operation or second method interference processing operation, the first method interference processing behaviour
Make to comprise at least and stopped sending signal by the part of authoring system interference in CR system subframes, the second method is done
Processing operation is disturbed to stop the transmission of strong jamming subframe, wherein, strong jamming subframe is to be awarded according in CR system subframes by described
What the part of power system interference was determined.
44. equipment as claimed in claim 43, it is characterised in that at the first method interference that the processing module uses
Reason operation also includes：Map the data into CR system subframes and be not affected by the available resources position of the authoring system interference.
45. equipment as claimed in claim 43, it is characterised in that at the first method interference that the processing module uses
Reason operation also includes：Abandon receiving the data carried in CR system subframes by the part of authoring system interference；
The second method interference processing operation that the processing module uses also includes：Abandon receiving strong jamming subframe.
46. equipment as claimed in claim 43, it is characterised in that the determining module is specifically used for, it is determined that strong jamming is sub
During frame, if being carried crucial channel and/or key signal by the part of authoring system interference in CR system subframes, it is determined that should
CR system subframes are strong jamming subframe.
47. equipment as claimed in claim 43, it is characterised in that the processing module is specifically used for, according to the CR received
The interference processing order that system network equipment is sent carries out interference processing；Wherein, the interference processing order is CR grids
Equipment it is determined that authoring system occur in current working frequency or i.e. will appear from, or authoring system interference exceed setting door
Send in limited time.
48. equipment as claimed in claim 43, it is characterised in that the signal emission parameter comprises at least：
The signal period length of authoring system；
In each signal period of authoring system, signal emission duration length；
Authoring system is offset relative to the transmitting time started of CR systems.
49. equipment as claimed in claim 48, it is characterised in that the signal emission parameter also includes：The letter of authoring system
Number emission duration length；
The processing module is additionally operable to, and starts timing after interference processing is proceeded by, and system is authorized when timing duration reaches described
During the signal emission duration length of system, stopping carries out interference processing.
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| CN201310062207.7A CN104010319B (en) | 2013-02-27 | 2013-02-27 | A kind of cognitive radio system interference processing method and equipment |
| PCT/CN2014/072533 WO2014131346A1 (en) | 2013-02-27 | 2014-02-26 | Cognitive radio system interference handling method and device |
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| CN201310062207.7A CN104010319B (en) | 2013-02-27 | 2013-02-27 | A kind of cognitive radio system interference processing method and equipment |
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| CN104717661A (en) * | 2015-02-10 | 2015-06-17 | 北京邮电大学 | Method and device for cognitive long term evolution (LTE) system to avoid interference of identical-frequency pulses |
| CN111212433B (en) * | 2020-01-13 | 2020-09-08 | 电子科技大学 | Cognitive radio device and method based on single-channel self-interference cancellation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101741486A (en) * | 2009-12-25 | 2010-06-16 | 中国科学院计算技术研究所 | Spectrum resource sharing method for cognitive radio network |
| WO2012174916A1 (en) * | 2011-06-22 | 2012-12-27 | 电信科学技术研究院 | Interference suppression method and device in situation of spectrum sharing between different systems |
| CN102857306A (en) * | 2011-06-29 | 2013-01-02 | 中兴通讯股份有限公司 | Channel availability detection method and system, and spectrum management method |
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- 2013-02-27 CN CN201310062207.7A patent/CN104010319B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101741486A (en) * | 2009-12-25 | 2010-06-16 | 中国科学院计算技术研究所 | Spectrum resource sharing method for cognitive radio network |
| WO2012174916A1 (en) * | 2011-06-22 | 2012-12-27 | 电信科学技术研究院 | Interference suppression method and device in situation of spectrum sharing between different systems |
| CN102857306A (en) * | 2011-06-29 | 2013-01-02 | 中兴通讯股份有限公司 | Channel availability detection method and system, and spectrum management method |
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| CN104010319A (en) | 2014-08-27 |
| WO2014131346A1 (en) | 2014-09-04 |
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