Embodiment
The embodiment of the present invention provides in a kind of cognitive radio system and has disturbed processing scheme, in this scheme, CR system is in the time of the geographical regional work of vicinity of authoring system transmitter, make full use of the periodically feature that transmits of authoring system, in the duration of transmitting within the authoring system signal transmitting cycle, do not work, avoid interference authoring system on the one hand, avoid on the other hand CR system to be subject to the interference of authoring system, thereby made to ensure that the user of authoring system and CR system experiences.
Technical solution of the present invention is applicable to adopt the LTE system of CR technology, 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, 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 in above system future.
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in detail.
Embodiment mono-
Referring to Fig. 1, the interference handling process schematic diagram of the CR system providing for the embodiment of the present invention one.Executive agent taking the base station equipment in CR system as this flow process in this flow process is example description, the executive agent of this flow process can also be that other can realize the network equipment that disturbs processing operation, such as RNC(Radio Network Controller, radio network controller).As shown in the figure, this flow process can comprise the following steps 101 ~ 103:
The base station of step 101:CR system obtains the signal emission parameter of authoring system.
Concrete, the signal emission parameter of authoring system includes but not limited to: signal emission duration length InterferDurationPerPeriod in the signal period length InterferPeriod of authoring system, each signal period, and with respect to the transmitting time started skew InterferStartTimeOffset of CR system, also can further comprise: emission duration length InterferTotalDuration.Fig. 2 has provided the signal of authoring system and the schematic diagram of signal parameter.Wherein, transmitting time started skew InterferStartTimeOffset refers to that reference subframe taking CR system is as benchmark, the start time point transmitting of authoring system and this side-play amount with reference to subframe start time point.
The base station of CR system can obtain the signal emission parameter of authoring system in several ways, comprising but be not limited to following several mode:
Mode one: frequency spectrum perception mode.Such as, the base station of CR system is according to the signal on the received authoring system frequency of frequency spectrum perception, by the study statistic processes of a period of time, add up the above-mentioned signal emission parameter of authorized system.
Mode two: access data storehouse mode.Such as, the base station of CR system is from recording the signal emission parameter of data base querying mandate EVAC (Evacuation Network Computer Model) of authoring system signal emission parameter, or the database that records authoring system signal emission parameter is pushed to the signal emission parameter of authorizing EVAC (Evacuation Network Computer Model) the base station of CR system.
Mode three: authoring system assist mode.Such as, the base station of CR system is to the signal emission parameter of this authoring system of authoring system acquisition request.
The part that is subject to authoring system interference in CR system subframe is determined in the base station of step 102:CR system according to the signal emission parameter of authoring system.
Concrete, the specific algorithm of " determining the part that is subject to authoring system interference in CR system subframe according to the signal emission parameter of authoring system " is: suppose that interference signal signal transmitting Cycle Length is InterferPeriod, in each cycle, signal emission duration length is InterferDurationPerPeriod, the skew of transmitting time started is InterferStartTimeOffset, for nSubframe the subframe (supposing that subframe time span is LengthSubframe) after the reference subframe of transmitting time started skew InterferStartTimeOffset, the part that is subject to authoring system interference in nSubframe subframe meets following constraints:
InterferStartTimeOffset+z*InterferPeriod≤t≤InterferStartTimeOffset
+ InterferDurationPerPeriod+z*InterferPeriod(condition 1)
NSubframe*LengthSubframe≤t≤(nSubframe+1) * LengthSubframe(condition 2)
Wherein, z is integer.Such as, if nSubframe=1 determines according to above-mentioned condition 2: be subject to the time domain scope (being in subframe 2) in [LengthSubframe, 2*LengthSubframe] is interval that authoring system disturbs in the 1st subframe after subframe 1; According to above-mentioned condition 1, get z=0,1 ..., the span of calculating t, the part wherein overlapping with subframe 2 place time domain scopes, is the time domain scope that is subject to authoring system interference in subframe 2.
The base station of step 103:CR system is taked to disturb according to the part that is subject to authoring system interference in CR system subframe and is processed.Wherein, the part of disturbing processing mode to be at least included in authorized system interference in subframe stops transmitted signal, or stops the transmission of strong jamming subframe.
Concrete, the base station of CR system can be realized in the following ways disturbing and be processed:
Mode one: when data-mapping is carried out in the base station of CR system, adopt traditional mode to shine upon, that is, transmitting data is mapped to all available resources position in subframe; In the time carrying out signal transmission, in subframe, the part of authorized system interference stops transmitted signal.
Mode two: when data-mapping is carried out in the base station of CR system, adopt new mode to shine upon, that is, transmitting data is mapped to all available resources positions that are not subject to authorizing interference in subframe; In the time carrying out signal transmission, in subframe, the part of authorized system interference stops transmitted signal.Preferably, when data-mapping is carried out in the base station of CR system, can adopt new mode to shine upon (for some channel, transmitting data is mapped to all available resources positions that are not subject to authorizing interference in subframe), for example, such as Traffic Channel (the PUSCH(Physical uplink shared channel in LTE system, physical uplink is shared breath road) and/or PDSCH(Physical downlink shared channel, Physical Downlink Shared Channel)).
Mode three: the base station of CR system judges according to the part that is subject to authoring system interference in subframe whether subframe belongs to strong jamming subframe, if subframe is strong jamming subframe, stops sending this strong jamming subframe.Judge that the algorithm whether subframe belongs to strong jamming subframe can be: carry crucial channel and/or key signal if be subject to the part that authoring system disturbs in subframe, judge that this subframe is as strong jamming subframe, otherwise, judge that this subframe is not strong jamming subframe.
For LTE system, described key signal includes but not limited to one of following or combination:
Master sync signal is or/and auxiliary synchronous signals;
Downlink reference signal;
Uplink reference signals;
Described crucial channel includes but not limited to one of following or combination:
Broadcast channel (Physical broadcast channel, PBCH);
Physical Downlink Control Channel (Physical downlink control channel, PDCCH);
Physics HARQ(Hybrid Automatic Repeat Request, mixed automatic retransfer request) indicating 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 process, the base station of CR system is getting after the signal emission parameter of authoring system, can determine the part that is subject to authoring system interference in CR system subframe according to the signal emission parameter of authoring system.Preferably, the base station of CR system also can occur or be about to occurring at definite authoring system in current working frequency, or the interference of authoring system exceedes and set when thresholding, determines to open to disturb the operation of processing.Determining to open after the operation of disturbing processing, the base station of CR system can start to be subject to the part that authoring system disturbs in definite CR system subframe.Wherein, the modes such as frequency spectrum perception, database notification or authoring system assistance can be passed through in the base station of CR system, judge whether authoring system occurs in current working frequency or no being about to occurs, or whether the interference of authoring system exceed setting thresholding.
In the step 103 of above-mentioned flow process, preferably, the base station of CR system can occur or be about to occurring at definite authoring system in current working frequency, or the interference of authoring system exceedes while setting thresholding, determine to open the operation of disturbing processing,, take to disturb processing according to the part that is subject to authoring system interference in CR system subframe.
Further, in above-mentioned flow process, can make an appointment " interference processing duration " in the base station of CR system, be used to indicate to open to disturb to process to and finish to disturb the time span of processing, preferably, the value of " disturbing and processing the duration " can equal emission duration InterferTotalDuration.The base station of CR system can start timing after the operation of opening interference processing, in the time that timing duration reaches " disturb process duration " indicated time span, operation is processed in the above-mentioned interference that the CR system finishing embodiment of the present invention provides, the part execution interference processing of, no longer disturbing being subject to authoring system in subsequent subframe.
Embodiment bis-
On the basis of embodiment mono-, embodiment bis-has carried out further optimization, synchronously disturbs processing to realize network side and end side, thereby the signal further reducing between CR system and authoring system disturbs.
Referring to Fig. 3, the interference handling process schematic diagram of the CR system providing for the embodiment of the present invention two.Executive agent taking the base station equipment in CR system as this flow process in this flow process is described as example, and the executive agent of this flow process can also be that other can realize the network equipment that disturbs processing operation, such as RNC.As shown in the figure, this flow process can comprise the following steps 301 ~ 304:
The base station of step 301:CR system obtains the signal emission parameter of authoring system.The specific implementation of this step is with the step 101 in Fig. 1.
The base station of step 302:CR system notifies the signal emission parameter of the authoring system getting to the terminal in community.
Concrete, the base station of CR system is notified to the authoring system signal emission parameter of terminal and can be comprised: signal emission duration length InterferDurationPerPeriod in the signal period length InterferPeriod of authoring system, each signal period, and transmitting time started skew InterferStartTimeOffset.Further, base station is notified to the authoring system signal emission parameter of terminal and also can be comprised: emission duration length InterferTotalDuration.
The base station of CR system can send authoring system signal emission parameter to terminal by broadcast.In LTE system, can adopt existed system block of information (SIB, System Information Block) (as SIB1 and SIB2) bearer authorization system signal emission parameter, also can use the SIB bearer authorization system signal emission parameter of new definition.
The base station of step 303:CR system and terminal, determine the part that is subject to authoring system interference in CR system subframe according to the signal emission parameter of authoring system.Wherein determine that the specific algorithm of the part that is subject to authoring system interference in CR system subframe is with the step 102 in Fig. 1.
The base station of step 304:CR system and terminal, take to disturb according to the part that is subject to authoring system interference in CR system subframe and process.
Concrete, disturb processing mode to be: on down direction, base station stops the transmission of strong jamming subframe, and terminal is carried out input and reception according to existing mode, and terminal also can stop the reception of strong jamming subframe; Or/and on up direction, terminal stops the transmission of strong jamming subframe, input and reception are carried out according to existing mode in base station, and base station also can stop the reception of strong jamming subframe.Wherein, described in judging that mode that whether subframe belong to strong jamming subframe ditto, as crucial channel and/or the key signal of basis for estimation, can be in advance in the base station of CR system and terminal, make an appointment, such as specifying by agreement is static, also can be by CR system base-station by crucial channel and/or key signal described in the terminal in signaling community, or by CR system base-station by crucial channel and/or key signal described in broadcast notification terminal.
Disturb processing mode to be: on down direction, the part of base station authorized system interference in subframe stops transmitted signal, terminal is carried out input and reception according to existing mode, and the part that terminal also can be authorized to system interference in subframe stops receiving signal; Or/and on up direction, the part of terminal authorized system interference in subframe stops transmitted signal, input and reception are carried out according to existing mode in base station, and the part that base station also can be authorized to system interference in subframe stops receiving signal.
Concrete, the base station of CR system and the terminal processing mode of can making an appointment, processing mode according to a preconcerted arrangement realizes disturbing and processes.The processing mode of arranging can comprise following several:
Mode one: on down direction, when data-mapping is carried out in the base station of CR system, adopt traditional mode to shine upon, that is, transmitting data is mapped to all available resources position in subframe; In the time carrying out signal transmission, in subframe, the part of authorized system interference stops transmitted signal.The terminal of CR system is carrying out signal while receiving, thinks the whole decoding errors of part of authorized system interference in subframe, ignores this part.
Mode two: on down direction, when data-mapping is carried out in the base station of CR system, adopt new mode to shine upon, that is, transmitting data is mapped to all available resources positions that are not subject to authorizing interference in subframe; In the time carrying out signal transmission, in subframe, the part of authorized system interference stops transmitted signal.When the terminal of CR system is carried out signal reception, think that the part of the interior authorized system interference of subframe does not exist transmitting data, ignore this part.Preferably, when data-mapping is carried out in the base station of CR system, can adopt new mode to shine upon for some channel, for example, such as Traffic Channel (PUSCH in LTE system and PDSCH).
Mode three: on up direction, when the terminal of CR system is carried out data-mapping, adopt traditional mode to shine upon, that is, transmitting data is mapped to all available resources position in subframe; In the time carrying out signal transmission, in subframe, the part of authorized system interference stops transmitted signal.The base station of CR system is in input with while receiving, thinks the whole decoding errors of part of authorized system interference in subframe, ignores this part.
Mode four: on up direction, when the terminal of CR system is carried out data-mapping, adopt new mode to shine upon, that is, transmitting data is mapped to all available resources positions that are not subject to authoring system interference in subframe; In the time carrying out signal transmission, in subframe, the part of authorized system interference stops transmitted signal.When the base station received signal of CR system, think that the part of authorized system interference does not exist transmitting data in subframe, ignore this part.Preferably, when the terminal of CR system is carried out data-mapping, can, for some channel, for example, such as Traffic Channel (in LTE system, being PUSCH and PDSCH), adopt new resource mapping method.
Wherein, the base station of CR system and terminal can be adopted with the following method above-mentioned processing mode is arranged:
Method one: by the static regulation of agreement;
Method two: by dynamic advice method: transmission and the receive mode to being subject to the subframe that authoring system disturbs determined in base station, and base station selected mode is sent to the terminal in community by signaling.Concrete, base station can, by broadcast after step 301, be notified selected mode to the terminal in community.
In step 303 in above-mentioned flow process, the base station of CR system is getting after the signal emission parameter of authoring system, can determine the part that is subject to authoring system interference in CR system subframe according to the signal emission parameter of authoring system; The terminal of CR system, after the signal emission parameter of authoring system that receives base station notice, can be determined the part that is subject to authoring system interference in CR system subframe according to the signal emission parameter of authoring system.After the base station of CR system and terminal are determined and be subject to part that authoring system disturbs in CR system subframe, can take to disturb and process according to being subject to part that authoring system disturbs in CR system subframe.
Further, in above-mentioned flow process, the base station of CR system and terminal can be made an appointment (as by the static regulation of agreement) " disturb and process the duration ", and CR system base-station also can will " disturb and process the duration " notice to terminal by the advice method of broadcast or RRC signaling.The implication of " disturb process duration " and value ditto described in.The base station of CR system and terminal can start respectively timing (as started timing taking " disturb and process the entry-into-force time " as starting point) in the time starting employing interference processing, in the time that timing duration reaches " disturb process duration " indicated time span, operation is processed in the above-mentioned interference that the base station of CR system and terminal finish respectively the embodiment of the present invention and provide, the part execution interference processing of, no longer disturbing being subject to authoring system in subsequent subframe.
Embodiment tri-
On the basis of embodiment bis-, embodiment tri-has carried out further optimization, synchronously disturbs processing to realize network side and end side, thereby the signal further reducing between CR system and authoring system disturbs.
Referring to Fig. 4, the interference handling process schematic diagram of the CR system providing for the embodiment of the present invention three.Executive agent taking the base station equipment in CR system as this flow process in this flow process is described as example, and the executive agent of this flow process can also be that other can realize the network equipment that disturbs processing operation, such as RNC.As shown in the figure, this flow process can comprise the following steps 401 ~ 405:
The base station of step 401:CR system obtains the signal emission parameter of authoring system.The specific implementation of this step is with the step 301 in Fig. 3.
The base station of step 402:CR system notifies the signal emission parameter of the authoring system getting to the terminal in community.The specific implementation of this step is with the step 302 in Fig. 3.
The base station to determine of step 403:CR system is opened to disturb and is processed operation, and opens to disturb in decision and process after operation, and processing command is disturbed in the terminal transmission in community, opens to disturb to process to operate in order to indicating terminal.
Concrete, the base station of CR system can be sent and be disturbed processing command by broadcast, also can send and disturb processing command by the order of terminal-Specific (being dedicated signaling), and in the time disturbing processing command to adopt the order of terminal-Specific to send, disturb processing command can pass through RRC signaling bear, also can carry as CFI by MAC layer or physical layer signaling.
Disturb in processing command and can comprise: " disturb and process the entry-into-force time " and/or " disturb and process the duration ", the value of " disturb and process the entry-into-force time " and " disturbing the processing duration " and implication ditto described in.Certainly, " entry-into-force time is processed in interference " and/or " disturb and process the duration " also can be made an appointment by the base station of CR system and terminal, described " making an appointment " refers to: the base station of CR system and terminal are by the static regulation of agreement, or base station is by the mode notification terminal of broadcast or RRC signaling.
Preferably, the base station of CR system can occur or be about to occurring at definite authoring system in current working frequency, or the interference of authoring system exceedes while setting thresholding, determine to open and disturb the operation of processing (to start subsequently to carry out in definite CR system subframe and be subject to the part that authoring system disturbs, and take to disturb the operation for the treatment of measures), and process after operation determining to open to disturb, on the one hand self open and disturb the operation of processing, send and disturb processing command to the terminal in community on the other hand.Further, base station can be opened and disturb the operation of processing according to " disturbed and process the entry-into-force time ", and indicating terminal is opened and disturbed the operation of processing according to " disturb and process the entry-into-force time ".Wherein, the modes such as frequency spectrum perception, database notification or authoring system assistance can be passed through in the base station of CR system, judge whether authoring system occurs in current working frequency or no being about to occurs, or whether the interference of authoring system exceed setting thresholding.
The base station of step 404:CR system and terminal, determine the part that is subject to authoring system interference in CR system subframe according to the signal emission parameter of authoring system.The specific implementation of this step is with the step 303 in Fig. 3.
The base station of step 405:CR system and terminal, take to disturb according to the part that is subject to authoring system interference in CR system subframe and process.The specific implementation of this step is with the step 304 in Fig. 3.
Further, the base station of CR system can start timing opening to disturb while processing, and in the time that timing duration reaches " disturb and process the duration " indicated time span, operation is processed in the above-mentioned interference that finishing the embodiment of the present invention provides.The terminal of CR system can start timing opening to disturb while processing, and in the time that timing duration reaches " disturb and process the duration " indicated time span, operation is processed in the above-mentioned interference that finishing the embodiment of the present invention provides.
Embodiment tetra-
On the basis of embodiment tri-, embodiment tetra-simplifies.Concrete, on the basis of embodiment tri-, in embodiment tetra-, omit the base station of CR system and notified the step to the terminal in community by the signal emission parameter of the authoring system getting, accordingly, in the interference processing command sending in the base station of CR system, need to comprise the signal emission parameter of the authoring system that the base station of CR system gets.Disturb the signal emission parameter of the authoring system comprising in processing command to comprise: signal emission duration length InterferDurationPerPeriod in the signal period length InterferPeriod of authoring system, each signal period, and transmitting time started skew InterferStartTimeOffset, further, also can comprise: emission duration length InterferTotalDuration.
Embodiment five
Embodiment five has described the interference handling process of the terminal of CR system, and its handling process can realize with reference to the handling process of embodiment mono-, is not described in detail in this.Wherein, the implementation that the terminal of CR system is obtained the signal emission parameter of authoring system can comprise: the signal emission parameter that obtains authoring system by modes such as frequency spectrum perception mode, access data storehouse mode or authoring system assist modes; Or the base station of CR system, getting after the signal emission parameter of authoring system, is notified to the terminal in community, thereby make the signal emission parameter of the authorized system of terminal; Or the base station of CR system is getting after the signal emission parameter of authoring system, by disturbing processing command to send it to the terminal in community, thereby make the signal emission parameter of the authorized system of terminal.
Comprehensive above various situations, table 1 shows message format and the content of disturbing processing command.
Table 1
Can find out by above description, in the technical scheme of the embodiment of the present invention, CR system is in the time of the geographical regional work of vicinity of authoring system transmitter, CR system makes full use of the periodically feature that transmits of authoring system, in the duration of transmitting within the authoring system signal transmitting cycle, do not work, or stop receiving and transmitting signal being subject to strongly disturbing subframe, avoid interference on the one hand authoring system, avoid on the other hand CR system to be subject to the interference of authoring system, thereby made to ensure that the user of authoring system and CR system experiences.
Based on identical technical conceive, the embodiment of the present invention also provides a kind of base station equipment and terminal equipment of the CR system that can be applicable to above-described embodiment.
Referring to Fig. 5, the structural representation of the network equipment of the CR system providing for the embodiment of the present invention.As shown in the figure, this network equipment can comprise: acquisition module 51, determination module 52, processing module 53, wherein:
Acquisition module 51, for obtaining the signal emission parameter of authoring system;
Determination module 52, for determining the part that is subject to described authoring system interference in CR system subframe according to the signal emission parameter of the authoring system getting;
Processing module 53, for disturbing processing according to the part that is subject to described authoring system interference in CR system subframe; Described interference processing comprises that first method disturbs processing to operate or second method is disturbed processing operation, described first method is disturbed and is processed operation and be at least included in and in CR system subframe, be subject to the part that described authoring system disturbs and stop transmitted signal, described second method is disturbed to process and is operating as the transmission that stops strong jamming subframe, wherein, strong jamming subframe is to determine according to the part that is subject to described authoring system interference in CR system subframe.
Further, the first method that processing module 53 adopts is disturbed to process to operate and is also comprised: data-mapping is not subject to the available resources position that described authoring system disturbs in CR system subframe.Preferably, processing module 53 can not be subject to the available resources position that described authoring system disturbs by the data-mapping of allocated channel in CR system subframe.In LTE system, described allocated channel comprises PDSCH.
Further, processing module 53 adopts first method is disturbed and is processed operation and also comprise: abandon receiving and in CR system subframe, be subject to the data that part that described authoring system disturbs is carried; The second method adopting is disturbed to process to operate and is also comprised: abandon receiving strong jamming subframe.
Concrete, determination module 52 is subject to part that described authoring system disturbs according to CR system subframe while determining strong jamming subframe, carry crucial channel and/or key signal if be subject to the part of authoring system interference in CR system subframe, determine that this CR system subframe is strong jamming subframe.Wherein, the particular content of described crucial channel and key signal can be ditto described in, do not repeat them here.
Concrete, processing module 53 can occur or be about to occurring at definite authoring system in current working frequency, or the interference of authoring system is while exceeding setting thresholding, disturbs processing according to the part that is subject to described authoring system interference in CR system subframe.
Further, this equipment also can comprise notification module 54, for getting after the signal emission parameter of authoring system, the signal emission parameter of the authoring system getting is notified to the terminal in community; And, in current working frequency, occur or be about to occurring at definite authoring system, or the interference of authoring system exceedes while setting thresholding, terminal in community sends interference processing command, is used to indicate terminal and disturbs processing according to the part that is subject to described authoring system interference in CR system subframe.Or, notification module 54 gets at acquisition module 51 after the signal emission parameter of authoring system, in current working frequency, occur or be about to occurring at definite authoring system, or the interference of authoring system exceedes while setting thresholding, terminal in community sends interference processing command, be used to indicate terminal and disturb processing according to being subject to the part that described authoring system disturbs in CR system subframe, in described interference processing command, at least comprise the signal emission parameter of the authoring system that described CR grid equipment gets.Preferably, notification module 54 can pass through broadcast, and the signal emission parameter of the authoring system getting is notified to the terminal in community.In LTE system, notification module 54 can be carried on the signal emission parameter of authoring system system information block SIB1 in broadcast or/and in SIB2, or is carried in the system information block of expansion.Notification module 54 can send described interference processing command by broadcast or dedicated signaling, and in the time sending described interference processing command by dedicated signaling, described interference processing command is carried on RRC signaling or MAC layer or physical layer signaling.
Further, in the described interference processing command that notification module 54 sends, comprise to disturb and process the entry-into-force time, be used to indicate terminal in the time that this interference processing entry-into-force time arrives, disturb processing according to the part that is subject to described authoring system interference in CR system subframe.Accordingly, processing module 53, in the time that described interference processes that the entry-into-force time, the indicated time reached, is disturbed processing according to being subject to the part that described authoring system disturbs in CR system subframe.
Further, in the described interference processing command that notification module 54 sends, comprise to disturb and process the duration, be used to indicate terminal processing this interference and process the duration and stop disturbing processing when indicated time span arrives from starting to disturb, indicated time span of duration is processed in described interference, is not less than the signal emission duration length of described authoring system.Accordingly, processing module 53 starts timing starting to disturb after processing, and processes after indicated time span of duration when timing duration reaches described interference, stops disturbing processing.
Concrete, the described signal emission parameter that acquisition module 51 gets at least comprises: the signal period length of authoring system; In each signal period of authoring system, signal emission duration length; Authoring system is with respect to the transmitting time started skew of CR system.
Further, described signal emission parameter also comprises: the signal emission duration length of authoring system.Accordingly, processing module 53 can start timing after starting to disturb processing, in the time that timing duration reaches the signal emission duration length of described authoring system, stops disturbing processing.
Referring to Fig. 6, the structural representation of the terminal equipment of the CR system providing for the embodiment of the present invention.As shown in the figure, this terminal equipment can comprise: acquisition module 61, determination module 62, processing module 63, wherein:
Acquisition module 61, for obtaining the signal emission parameter of authoring system;
Determination module 62, for determining the part that is subject to described authoring system interference in CR system subframe according to the signal emission parameter of the authoring system getting;
Processing module 63, for disturbing processing according to the part that is subject to described authoring system interference in CR system subframe; Described interference processing comprises that first method disturbs processing to operate or second method is disturbed processing operation, described first method is disturbed and is processed operation and be at least included in and in CR system subframe, be subject to the part that described authoring system disturbs and stop transmitted signal, described second method is disturbed to process and is operating as the transmission that stops strong jamming subframe, wherein, strong jamming subframe is to determine according to the part that is subject to described authoring system interference in CR system subframe.
Further, the described first method that processing module 63 adopts is disturbed to process to operate and is also comprised: data-mapping is not subject to the available resources position that described authoring system disturbs in CR system subframe.Preferably, processing module 63 is not subject to the available resources position that described authoring system disturbs by the data-mapping of allocated channel in CR system subframe.In LTE system, described allocated channel comprises PUSCH.
Further, the described first method that processing module 63 adopts is disturbed and is processed operation and also comprise: abandon receiving and in CR system subframe, be subject to the data that part that described authoring system disturbs is carried.The described second method that processing module 63 adopts is disturbed to process to operate and is also comprised: abandon receiving strong jamming subframe.
Concrete, when determination module 62 is determined strong jamming subframe, carry crucial channel and/or key signal if be subject to the part of authoring system interference in CR system subframe, determine that this CR system subframe is strong jamming subframe.Described crucial channel and key signal illustrate the same described in, do not repeat them here.
Further, acquisition module 61 also can receive the interference processing command that CR grid equipment sends; The interference processing command that processing module 63 sends according to the CR grid equipment receiving disturbs processing.Wherein, to be CR grid equipment occur or be about to occurring at definite authoring system in current working frequency in described interference order, or the interference of authoring system exceedes and sends while setting thresholding.The signal emission parameter that comprises described authoring system in described interference processing command; Or acquisition module 61 also received the notice that CR grid equipment sends before receiving described interference processing command, in described notice, comprise the signal emission parameter of described authoring system.Described interference processing command is carried on broadcast.In LTE system, the signal emission parameter of described authoring system is carried on system information block SIB1 in broadcast or/and in SIB2, or is carried in the system information block of expansion.
Concrete, acquisition module 61 can receive described interference processing command by broadcast or dedicated signaling.When acquisition module 61 receives described interference processing command by dedicated signaling, described interference processing command is carried on RRC signaling or MAC layer or physical layer signaling.
Further, in described interference processing command, comprise and disturb the processing entry-into-force time.Accordingly, processing module 63, in the time that described interference processes that the entry-into-force time, the indicated time reached, is disturbed processing according to being subject to the part that described authoring system disturbs in CR system subframe.
Further, comprise to disturb and process the duration in described interference processing command, indicated time span of duration is processed in described interference, is not less than the signal emission duration length of described authoring system.Accordingly, processing module 63 starts timing starting to disturb after processing, and processes after indicated time span of duration when timing duration reaches described interference, stops disturbing processing.
Concrete, described signal emission parameter at least comprises: the signal period length of authoring system; In each signal period of authoring system, signal emission duration length; Authoring system is with respect to the transmitting time started skew of CR system.Further, described signal emission parameter also comprises: the signal emission duration length of authoring system.Accordingly, processing module 63 starts timing after starting to disturb processing, in the time that timing duration reaches the signal emission duration length of described authoring system, stops disturbing processing.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential general hardware platform by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions (can be mobile phones in order to make a station terminal equipment, personal computer, server, or the network equipment etc.) carry out the method described in each embodiment of the present invention.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be looked protection scope of the present invention.