CN104125603A - Method, apparatus and system for base station to transmit instruction message to communication terminal - Google Patents
Method, apparatus and system for base station to transmit instruction message to communication terminal Download PDFInfo
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- CN104125603A CN104125603A CN201310145947.7A CN201310145947A CN104125603A CN 104125603 A CN104125603 A CN 104125603A CN 201310145947 A CN201310145947 A CN 201310145947A CN 104125603 A CN104125603 A CN 104125603A
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Abstract
The invention discloses a method, apparatus and system for a base station to transmit an instruction message to a communication terminal. The main content of the invention is that when the base station determines interference to a navigation terminal needs to be overcome, the communication terminal is instructed to perform an operation to reduce interference to the navigation terminal, and the problems of large hardware design change in the communication terminal and adverse effects on communication services of the communication terminal are avoided while the interference of an uplink transmission process of a wireless communication system to a downlink transmission process of a satellite navigation system is reduced.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of base station and to communication terminal, send method, the equipment and system of Indication message.
Background technology
Development along with the communication technology, there is at present the wireless communication system of multiple types, as TD-LTE(Time Division-Long Term Evolution, timesharing Long Term Evolution) wireless communication system, WCDMA(Wideband Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA)) wireless communication system, WiMAX(Worldwide Interoperability for Microwave Access, worldwide interoperability for microwave accesses) wireless communication system etc., when disposing these wireless communication system architecture, will distribute certain frequency range for each wireless communication system, so that taking the distributed resource of frequency range when work, the communication terminal of the network element in wireless communication system and access to wireless communication system carries out communication.
Simultaneously, for FDD(Frequency division duplex, Frequency Division Duplexing (FDD)) satellite navigation system of mode work, also can distribute the resource of frequency range for its uplink and downlink signals transmitting procedure, in the case, the situation that may occur the adjacent frequency bands that the downlink transmission process of frequency range that wireless communication system is shared and satellite navigation system is shared, cause the interference to the downlink transmission process of satellite navigation system of uplink process in wireless communication system, especially when the shared frequency range of the downlink transmission process of the shared frequency range of wireless communication system and satellite navigation system, in next-door neighbour, (described next-door neighbour frequently refers to that two frequency ranges are adjacent frequently, between two frequency ranges without intermediate bands) during state, uplink process in wireless communication system is more obvious to the interference of the downlink transmission process of satellite navigation system, have a strong impact on the positioning precision of navigation system, even cause locating unsuccessfully.
For example: as shown in Figure 1, the frequency range that TD-LTE system takies is 2500-2690MHz, 190MHz altogether, the frequency range that Beidou satellite navigation system uplink process takies is 1610-1626.5MHz, the frequency range that downlink transmission process takies is 2483.5-2500MHz, and the frequency range next-door neighbour that the frequency range that its downlink transmission process takies and TD-LTE system take frequently.If the communication terminal (described communication terminal refers to the terminal of access to wireless communication system) residing in TD-LTE system takies the following frequency range (described following frequency range refers near frequency range 2500MHz) in 2500-2690MHz, and during this communication terminal and navigation terminal (described navigation terminal is the terminal that refers to an access satellite navigation system) close together, this communication terminal sends process from uplink signal to base station will produce compared with strong jamming the downlink transmission process of Beidou satellite navigation system.Therefore, while need considering that the situation of adjacent frequency appears in frequency range that frequency range that the satellite navigation system when the work of FDD mode takies and wireless communication system take, the interference of the uplink process that how to reduce wireless communication system to the downlink transmission process of satellite navigation system.
At present, the uplink process of reduction wireless communication system mainly adopts following methods to the interference of the downlink transmission process of satellite navigation system:
Method one: for communication terminal, as long as the adjacent frequency bands that the downlink transmission process of the frequency range that communication terminal takies and satellite navigation system takies just reduces the out-of-band radiation interference value of communication terminal to setting threshold.For example, the communication terminal of the adjacent frequency bands taking for the frequency range taking and gps satellite navigation system downlink transmission process, FCC(Federal Communication Commission, US Federal Communication Committee) the out-of-band radiation interference value that limits this communication terminal is at-60dBm～-75dBm.Except adopt reducing the method for out-of-band radiation interference value of this communication terminal, also can directly adopt the method for the transmitting power that reduces this communication terminal, the interference of the uplink process that reduces wireless communication system to the downlink transmission process of satellite navigation system.
Method two: reserved protection frequency range between the frequency range that the frequency range taking at wireless communication system and the downlink transmission process of satellite navigation system take, the interference of the uplink process that reduces wireless communication system with this to the downlink transmission process of satellite navigation system.
The interference of the uplink process that above-mentioned two kinds of methods can both reduce wireless communication system to the downlink transmission process of satellite navigation system, but but there is following problem:
1, in said method one, due to communication terminal take with satellite navigation system successive bands whole during in, all to reduce the out-of-band radiation interference value of communication terminal, or directly reduce self transmitting power, with this, reach and reduce the object that the uplink process of wireless communication system is disturbed the downlink transmission process of satellite navigation system, therefore, communication terminal needs for a long time self to be carried out to radio frequency adjustment, on the one hand, the hardware designs of terminal is had relatively high expectations, realize difficulty large; On the other hand, the transmitting power that limits for a long time communication terminal may cause adverse effect to the business of communication terminal self.
2, said method two need to be reserved protection frequency range in limited Radio Resource, can cause the waste of Radio Resource.
Summary of the invention
The embodiment of the present invention provides a kind of base station to communication terminal, to send method, the equipment and system of Indication message, in order to solve what exist in prior art, it is the interference to the downlink transmission process of satellite navigation system of the uplink process that reduces wireless communication system, the hardware designs to communication terminal of bringing is changed larger, and the communication service of communication terminal is caused to the problem of adverse effect.
Base station sends a method for Indication message to communication terminal, described method comprises:
The uplink signal that base station monitors navigation terminal sends to satellite;
When base station determines that according to monitoring result need to trigger communication terminal execution reduces the operation that navigation terminal is disturbed, to described communication terminal, send the first Indication message, indicate described communication terminal to carry out the operation reducing navigation terminal interference.
A base station, described base station comprises:
Monitoring modular, the uplink signal sending to satellite for monitoring navigation terminal;
Judge module, for determining whether that according to the monitoring result of described monitoring modular need to trigger communication terminal carries out the operation reducing navigation terminal interference;
Indicating module, while reducing for need to trigger communication terminal execution according to judgment result is that of described judge module the operation that navigation terminal is disturbed, to described communication terminal, send the first Indication message, indicate described communication terminal to carry out and reduce the operation that navigation terminal is disturbed.
A communication terminal, described communication terminal comprises:
Receiver module, for receiving the first Indication message from base station, described the first Indication message is base station according to the monitoring of the uplink signal that navigation terminal is sent to satellite, determines that need to trigger communication terminal carries out and send while reducing the operation that navigation terminal is disturbed;
Executive Module, for carrying out and reduce the operation that navigation terminal is disturbed according to described the first Indication message, or according to the indication of base station, does not carry out and reduces the operation that navigation terminal is disturbed.
A communication system, comprising:
Base station, the uplink signal sending to satellite for monitoring navigation terminal, determines whether to trigger communication terminal according to monitoring result and carries out the operation reducing navigation terminal interference, if so, to described communication terminal, sends the first Indication message;
Communication terminal, for carrying out and reduce the operation that navigation terminal is disturbed according to described the first Indication message.
The application's beneficial effect is as follows:
The scheme of the embodiment of the present invention indicates communication terminal to carry out by base station to reduce the operation that navigation terminal is disturbed when determining the interference need to overcome navigation terminal, therefore, can be when the uplink process that reduces wireless communication system be to the interference of the downlink transmission process of satellite navigation system, avoid the hardware designs of communication terminal change large and the communication service of communication terminal caused to the problem of adverse effect.
Accompanying drawing explanation
Fig. 1 is the frequency range schematic diagram that frequency range that in background technology, TD-LTE system takies and Beidou satellite navigation system uplink process take;
Fig. 2 is that in the embodiment of the present invention one, base station sends the step schematic diagram of the method for Indication message to communication terminal;
Fig. 3 is that in the embodiment of the present invention one, communication terminal reduces the schematic diagram of selecting available bandwidth in the situation of transmitted bandwidth;
Fig. 4 is the structural representation of base station in the embodiment of the present invention two;
Fig. 5 is the structural representation of communication terminal in the embodiment of the present invention three.
Embodiment
The frequency range that the frequency range taking at wireless communication system and the downlink transmission process of satellite navigation system take is in adjacent frequency state, and in the situation of the frequency range not taking with the uplink process of satellite navigation system in adjacent frequency state, for the interference to the downlink transmission process of satellite navigation system of the uplink process that reduces wireless communication system, the scheme of the embodiment of the present invention is monitored the uplink signal in satellite navigation system by the base station in wireless communication system, in the coverage of determining base station, there is navigation terminal to send uplink signal to satellite, represent navigation terminal after need reception to be sent by satellite downstream transmission signals, now, base station can indicate communication terminal according to default mode, to reduce the interference that navigation terminal is received to described downstream transmission signals.
By the scheme of the embodiment of the present invention, can be when the uplink process that reduces wireless communication system be to the interference of the downlink transmission process of satellite navigation system, not only can not cause larger change to the hardware designs of communication terminal, can not cause on the business of communication terminal self impact of significant adverse yet; In addition, the scheme of the embodiment of the present invention, without reserved protection frequency range, has been avoided the waste to Radio Resource.
More preferably, in the scheme of the embodiment of the present invention, when base station, determine and not need communication terminal to provide while reducing the service of disturbing navigation terminal, can judge the state of communication terminal, if current execution of communication terminal reduced the operation that navigation terminal is disturbed, can indicate this communication terminal to stop carrying out this operation, the scheme that need always adjust the performance of self with respect to current communication terminal, it is to overcome the adjustment that the interference of navigation terminal is made self that the present invention program can reduce communication terminal.
It should be noted that, the communication terminal in the scheme of the embodiment of the present invention and navigation terminal can be for distinguishing independently terminal, and also can have a certain terminal is that communication terminal is carried out again the situation of the navigation terminal of satellite navigation business.
Below in conjunction with Figure of description, the embodiment of the present application is described further, but the application is not limited to the following examples.
Embodiment mono-:
As shown in Figure 2, for base station in the embodiment of the present application one sends the step schematic diagram of the method for Indication message to communication terminal, described method mainly comprises the following steps:
Step 101: the uplink signal that base station monitors navigation terminal sends to satellite.
The specific implementation of this step 101 can be:
First, the uplink signal that base station sends all terminals in coverage is monitored, and wherein, the terminal in base station range comprises communication terminal and navigation terminal.
Then, the shared frequency range of uplink signal that base station sends to the shared frequency range of the uplink signal of satellite and communication terminal to send to base station according to predetermined navigation terminal, the uplink signal receiving is analyzed, from the uplink signal receiving, distinguished uplink signal in satellite navigation system and the uplink signal in wireless communication system.
For example, the frequency range that Beidou satellite navigation system uplink process takies is 1610-1626.5MHz, the frequency range that base station can take the uplink signal receiving is analyzed, definite uplink signal that takies 1610-1626.5MHz frequency range is the uplink signal in satellite navigation system, realizes the monitoring to the uplink signal in satellite navigation system.
Step 102: base station is analyzed the uplink signal of the satellite navigation system monitoring, the communication terminal that judges whether to trigger in base station range is carried out the operation reducing navigation terminal interference, if so, performs step 103; Otherwise, execution step 104.
The uplink signal of the satellite navigation system that step 102 is intended to step 101 to monitor is analyzed, judge thus and in base station range, whether have navigation terminal to navigate and communicate by letter with satellite, and then judge whether to provide and to reduce the service of disturbing navigation terminal, if need to reduce the interference of communication terminal to navigation terminal, trigger communication terminal and carry out the operation reducing navigation terminal interference.
Particularly, the base station of this step 102 judges whether to trigger communication terminal execution reduction the method for the operation of navigation terminal interference is included but not limited to following three kinds:
Method one: whether the quantity of the uplink signal of the satellite navigation system that base station judgement monitors in setting duration reaches the first threshold value, if reach, determining in base station range to have navigation terminal repeatedly to satellite, to send uplink signal, or there are a plurality of navigation terminals to send uplink signal to satellite, now, in base station range, the business of satellite navigation system is more frequent, and base station need be triggered communication terminal and be carried out the operation reducing navigation terminal interference; If do not reach, represent may not have in base station range the business of satellite navigation system, or the traffic carrying capacity of satellite navigation system is few, base station does not need to trigger the operation that communication terminal execution reduction is disturbed navigation terminal.
The implementation of said method one is simple, can reduce the resource occupation of 102 pairs of base stations of this step.
The frequency range taking due to some interference signal overlaps with the frequency range that the uplink signal of satellite navigation system takies, therefore, after base station utilizes a pair of uplink signal receiving of method to analyze, uplink signal in the satellite navigation system of determining may be interference signal, this step 102 can adopt the interference signal of method two or three pairs of appearance of method to filter, and judges whether to trigger the operation that communication terminal execution reduction is disturbed navigation terminal according to the uplink signal in the satellite navigation system after filtering.
Method two: whether the gross energy of the uplink signal of the satellite navigation system that base station judgement monitors in setting duration reaches the second threshold value, if reach, determine that what receive is the uplink signal of satellite navigation system really, and the interference signal of unoccupied similar frequency bands, base station need be triggered communication terminal and be carried out the operation reducing navigation terminal interference; If do not reach, determine that the uplink signal of the satellite navigation system receiving is interference signal, but not the uplink signal of actual satellite navigation system, base station does not need to trigger the operation that communication terminal execution reduction is disturbed navigation terminal.
Method three: the uplink signal to the satellite navigation system monitoring carries out demodulation, read the special sequence in the uplink signal after demodulation, whether the degree of correlation of the specified sequence of the uplink signal of the special sequence that judgement demodulates and default satellite navigation system reaches the 3rd threshold value, if arrive, determine that what receive is the uplink signal of satellite navigation system really, base station need be triggered communication terminal and be carried out and reduce the operation that navigation terminal is disturbed; If do not reach, determine the uplink signal of satellite navigation system of the non-reality of uplink signal of the satellite navigation system monitor, base station does not need to trigger communication terminal and carries out and reduce the operation that navigation terminal is disturbed.
Wherein, described specified sequence has reflected the feature of signal, in the present embodiment, the signal that only comprises described specified sequence is only the uplink signal of satellite navigation system, therefore, special sequence in the signal monitoring and described specified sequence can be carried out to degree of correlation judgement, and then determine whether the signal monitoring is the uplink signal of satellite navigation system.
Size and the unit of above-mentioned the first threshold value, the second threshold value and the 3rd threshold value are different, by first, second, third restriction, distinguish three threshold values.
Step 103: base station sends the first Indication message to the communication terminal in coverage, indication communication terminal is carried out and is reduced the operation that navigation terminal is disturbed, and jumps to step 101.
In the scheme of this step 103, base station can send the first Indication message to all communication terminals in coverage, more preferably, base station also can send described the first Indication message by near the communication terminal of navigation terminal, the benefit of doing is like this: if the first Indication message is not to send with the form of broadcast, the traffic volume of the first Indication message can be reduced in base station, saves limited Radio Resource; Simultaneously, the communication terminal far away due to distance navigation terminal is less on the downlink transmission process impact of navigation terminal, may not request the communication terminal that distance navigation terminal is far away to carry out the operation reducing navigation terminal interference, the communication terminal that distance navigation terminal is far away can normally be worked, and reducing communication terminal is to overcome the adjustment that the interference of navigation terminal is made self.
Particularly, base station can be determined near communication terminal navigation terminal in such a way, and sends described the first Indication message to definite communication terminal:
The positional information of the navigation terminal in coverage is determined in base station by intelligent antenna technology, and to and navigation terminal between the distance communication terminal that is less than set point send the first Indication message.Certainly, the scheme of the present embodiment also can utilize other location technologies to determine the positional information of navigation terminal.
Step 104: base station indication communication terminal is not carried out and reduced the operation that navigation terminal is disturbed.
In the scheme of this step 104, base station can require terminal not carry out the operation reducing navigation terminal interference by send the mode of Indication message to communication terminal, also can, by communication terminal not being made the mode of extra indication, come requirement terminal not carry out and reduce the operation that navigation terminal is disturbed.
Particularly, the implementation of this step 104 can be:
Base station judges whether communication terminal is carrying out the operation reducing navigation terminal interference at present, if, to the communication terminal in coverage, send the second Indication message, indication communication terminal stops carrying out and reduces the operation that navigation terminal is disturbed, and jumps to step 101; If not, can by communication terminal, be continued to keep not carrying out to reduce the mode of operation that navigation terminal is disturbed by communication terminal not being made the mode of extra indication, base station directly jumps to step 101.
Base station judges whether communication terminal is being carried out the specific implementation reducing the operation of navigation terminal interference at present and be:
Before base station can judge, whether sent described the first Indication message, if do not send, represented that the current execution of communication terminal reduces the operation that navigation terminal is disturbed, and without send the second Indication message to communication terminal, and directly jumped to step 101; If sent, further after the last transmission of judgement the first Indication message, whether also sent the second Indication message, if, represent that the current execution of communication terminal reduces the operation that navigation terminal is disturbed, without send the second Indication message to communication terminal, and directly jump to step 101; Otherwise, need send the second Indication message to communication terminal, and jump to step 101.
In the scheme of the present embodiment, the first Indication message or the second Indication message can be carried in base station in downstream transmission signals, trigger respectively communication terminal execution or stop carrying out the operation reducing navigation terminal interference, for example, base station and communication terminal agreement Indication message content are 0 o'clock, communication terminal is carried out and is reduced the operation that navigation terminal is disturbed, and the Indication message that is 0 using this content is as the first Indication message; Indication message content is 1 o'clock, and communication terminal stops carrying out the operation reducing navigation terminal interference, enter normal operating condition, and the Indication message that is 1 using this content is as the second Indication message.A field can be opened up in base station in downstream transmission signals, using field contents as 0 or 1 content as Indication message, sends to communication terminal.
Distinguishingly, if the base station in the present embodiment is the base station in Cellular Networks, can determine while need to send the first Indication message or the second Indication message to communication terminal, notify other adjacent base stations, other base stations can be with reference to the notification message of this base station, carry out the scheme of the present embodiment one, to reduce the expense of base station.
By the scheme of the embodiment of the present invention one, owing to just indicating communication terminal to carry out when determining the interference need to overcome navigation terminal to reduce the operation that navigation terminal is disturbed in base station, when the interference that does not need to overcome to navigation terminal, even if communication terminal has taken with navigation terminal and has sent the frequency range that downstream transmission signals is adjacent, communication terminal does not need self adjusting to reduce the interference to navigation terminal yet, therefore, the selectivity executive communication terminal of the embodiment of the present invention one reduces the operation that navigation terminal is disturbed, can be when the uplink process that reduces wireless communication system be to the interference of the downlink transmission process of satellite navigation system, reducing communication terminal is to overcome the adjustment that the interference of navigation terminal is made self, in addition, the scheme of the embodiment of the present invention, without reserved protection frequency range, has been avoided the waste to Radio Resource.
Preferably, in step 103, base station can indicate communication terminal according to which kind of mode to carry out and reduce the operation that navigation terminal is disturbed by the first Indication message, and communication terminal is carried out corresponding operation according to the indication of base station.For example, base station can be by carrying operation mark in the first Indication message, trigger communication terminal and according to corresponding mode of operation, reduce the operation of disturbing, particularly, base station can indicate communication terminal to carry out and reduce the operation that navigation terminal is disturbed according to following three kinds of methods, but the present embodiment scheme is not limited to following three kinds of methods.
Method one:
Base station reduces transmitted bandwidth by the first Indication message indication communication terminal, while reducing communication terminal transmission uplink signal with this, navigation terminal is received the interference of downstream transmission signals.More preferably, communication terminal selects part bandwidth for sending uplink signal from available transmitted bandwidth, and wherein, the bandwidth of selection is in available transmitted bandwidth, away from the downlink transmission process for satellite navigation system, to distribute the bandwidth of frequency range.For example, the frequency range of take the frequency range as the distribution of TD-LTE wireless communication system shown in Fig. 3 and distributing as Beidou satellite navigation system is example, the 5M transmitted bandwidth that communication terminal A can use as shown in Figure 3, communication terminal A can therefrom select 3M bandwidth to realize the interference reducing navigation terminal, more preferably, communication terminal A can select the 3M bandwidth away from the frequency range of distributing for Beidou satellite navigation system as shown in Figure 3.
Method two: base station reduces the maximum transmission power of self by the first Indication message indication communication terminal.
Method three: base station adopts extra maximum power reduction mode to reduce interference by the first Indication message indication communication terminal, to limit the out-of-band radiation interference of self.Particularly, this method three can trigger communication terminal by NS signaling by base station increases A-MPR index, additionally to reduce the maximum power of self.
Base station can be opened up field and be carried 00(and represent to require communication terminal to select said method one), carry 01(and represent to require communication terminal to select said method two), carry 10(and represent to require communication terminal to select said method three).Certainly, the sign of above-mentioned several different methods also can be carried in base station in the first Indication message, requires communication terminal according to every kind of mode, self to be regulated, to reduce the interference to navigation terminal simultaneously.
It should be noted that, in the scheme of the present embodiment one, when base station also can send the first Indication message to communication terminal, do not indicate communication terminal to adopt which kind of mode to reduce interference, but received after described the first Indication message by communication terminal, initiatively select to reduce the mode of disturbing, as select at least one method in above-mentioned three kinds of methods to reduce the interference to navigation terminal.
Embodiment bis-:
The present embodiment two is to belong to the base station to communication terminal transmission Indication message under same inventive concept with embodiment mono-, and as shown in Figure 4, described base station mainly comprises: monitoring modular 11, judge module 12 and indicating module 13.
Wherein, the uplink signal that monitoring modular 11 sends to satellite for monitoring navigation terminal, and the shared frequency range of uplink signal sending to satellite according to navigation terminal, determine in the uplink signal receiving the uplink signal that has navigation terminal to send to satellite.
Judge module 12 is for determining whether that according to the monitoring result of described monitoring modular need to trigger communication terminal carries out the operation reducing navigation terminal interference.
When indicating module 13 reduces for need to trigger communication terminal execution according to judgment result is that of described judge module 12 operation that navigation terminal is disturbed, to described communication terminal, send the first Indication message, indicate described communication terminal to carry out and reduce the operation that navigation terminal is disturbed.
Described indicating module 13 can comprise the first indication submodule 131 and the second indication submodule 132, wherein:
The first indication submodule 131, for when judgment result is that need to trigger communication terminal execution reduces the operation that navigation terminal is disturbed, sends the first Indication message to described communication terminal, indicates described communication terminal to carry out the operation reducing navigation terminal interference.
The second indication submodule 132, for when judgment result is that not needing to trigger communication terminal execution reduces the operation that navigation terminal is disturbed, further judge whether described communication terminal is carrying out the operation reducing navigation terminal interference, if, to described communication terminal, send the second Indication message, indication communication terminal stops carrying out the operation reducing navigation terminal interference.
Particularly, judge module 12 can judge whether the quantity of the uplink signal that the navigation terminal that monitors in setting duration sends to satellite reaches the first threshold value, if, determine that need to trigger communication terminal carries out the operation reducing navigation terminal interference, otherwise, determine that communication terminal reduces without carrying out the operation that navigation terminal is disturbed, and can do further judgement by the state of 132 pairs of communication terminals of the second indication submodule.
Or, judge module 12 can judge whether the gross energy of the uplink signal that the navigation terminal that monitors in setting duration sends to satellite reaches the second threshold value, if, determine that need to trigger communication terminal carries out the operation reducing navigation terminal interference, otherwise, determine that communication terminal reduces without carrying out the operation that navigation terminal is disturbed, and can do further judgement by the state of 132 pairs of communication terminals of the second indication submodule.
Or, the uplink signal that 12 pairs of navigation terminals that monitor of judge module send to satellite carries out demodulation, determine the special sequence in the uplink signal after demodulation, judge whether the degree of correlation of described special sequence and default specified sequence reaches the 3rd threshold value; If so, determine that need to trigger communication terminal carries out the operation reducing navigation terminal interference, otherwise, determine that communication terminal reduces without carrying out the operation that navigation terminal is disturbed, and can do further judgement by the state of 132 pairs of communication terminals of the second indication submodule.
More preferably, described base station also comprises position determination module 14 and communication terminal determination module 15, wherein:
Position determination module 14, for determining the positional information that sends the navigation terminal of uplink signal to satellite;
Communication terminal determination module 15, for according to definite positional information, determine and described navigation terminal between distance be less than the communication terminal of set point;
Described indicating module 13, specifically for to determine and described navigation terminal between the distance communication terminal that is less than set point launch described the first Indication message.
Particularly, when needs send the first Indication message to communication terminal, in indicating module 13 first indication submodule 131 can be subject to the triggering of communication terminal determination module 15, to determine and described navigation terminal between the distance communication terminal that is less than set point launch described the first Indication message.When needs send the second Indication message to communication terminal, in indicating module 13 second indication submodule 132 can be subject to the triggering of communication terminal determination module 15, to determine and described navigation terminal between the distance communication terminal that is less than set point launch described the second Indication message.
In the present embodiment two, each module of base station has the logic function that realizes embodiment mono-method, repeats no more herein.
Embodiment tri-:
The present embodiment three is the communication terminals that belong to embodiment mono-Indication message that the reception under same inventive concept sends by base station and carry out or do not carry out associative operation, and as shown in Figure 5, described communication terminal mainly comprises: receiver module 21 and Executive Module 22.
Wherein, receiver module 21 is for receiving the first Indication message from base station, described the first Indication message is base station according to the monitoring of the uplink signal that navigation terminal is sent to satellite, determines that need to trigger communication terminal carries out and send while reducing the operation that navigation terminal is disturbed.
More preferably, described receiver module 21 is also for receiving the second Indication message from base station, described the second Indication message is that base station is according to the monitoring of the uplink signal that navigation terminal is sent to satellite, determine that do not need to trigger communication terminal carries out and reduce the operation that navigation terminal is disturbed, and definite communication terminal is being carried out and is being sent while reducing the operation that navigation terminal is disturbed;
Described Executive Module 22 is also for stopping carrying out the operation reducing navigation terminal interference according to described the second Indication message.
Executive Module 22 is for carrying out and reduce the operation that navigation terminal is disturbed according to described the first Indication message.
Particularly, described Executive Module 22 can, when receiving described the first Indication message, be carried out and be reduced the operation that navigation terminal is disturbed by following at least one mode:
Reduce transmitted bandwidth, reduce the maximum transmission power of self and adopt extra maximum power reduction mode to reduce interference.
In the present embodiment three, each module of communication terminal has the logic function that realizes embodiment mono-method, repeats no more herein.
Embodiment tetra-:
The present embodiment four is to belong to a kind of communication system under same inventive concept with embodiment mono-, and described communication system comprises base station and communication terminal.
Wherein, the uplink signal that described base station sends to satellite for monitoring navigation terminal, and determine whether to trigger according to monitoring result the operation that the communication terminal execution reduction in coverage is disturbed navigation terminal, if so, to described communication terminal, send the first Indication message;
Described communication terminal is for carrying out and reduce the operation that navigation terminal is disturbed according to described the first Indication message.
More preferably, described base station is also for determining that according to monitoring result not needing to trigger communication terminal carries out the operation reducing navigation terminal interference, and definite communication terminal is being carried out while reducing the operation that navigation terminal is disturbed, and to described communication terminal, sends the second Indication message; Communication terminal is also for stopping carrying out the operation reducing navigation terminal interference according to described the second Indication message.
Function division can be carried out according to the scheme of embodiment bis-in the base station relating in communication system in the present embodiment four, and communication terminal can carry out function division according to the scheme of embodiment tri-.
The scheme of the embodiment of the present invention, by base station, when determining the interference need to overcome navigation terminal, just indicate communication terminal to carry out and reduce the operation that navigation terminal is disturbed, when the interference that does not need to overcome to navigation terminal, even if communication terminal has taken with navigation terminal and has sent the frequency range that downstream transmission signals is adjacent, communication terminal does not need self adjusting to reduce the interference to navigation terminal yet, therefore, can be when the uplink process that reduces wireless communication system be to the interference of the downlink transmission process of satellite navigation system, reducing communication terminal is to overcome the adjustment that the interference of navigation terminal is made self.In addition, the in the situation that of determining navigation terminal positional information in base station, base station can only trigger and described navigation terminal between distance be less than the communication terminal of set point, can further reduce taking of base station resource.
Those skilled in the art should understand, the application's embodiment can be provided as method, system or computer program.Therefore, the application can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect completely.And the application can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code one or more.
The application is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present application, equipment (system) and computer program.Should understand can be in computer program instructions realization flow figure and/or block diagram each flow process and/or the flow process in square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction of carrying out by the processor of computer or other programmable data processing device is produced for realizing the device in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame on computer or other programmable devices.
Although described the application's preferred embodiment, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the application's scope.
Obviously, those skilled in the art can carry out various changes and modification and the spirit and scope that do not depart from the application to the application.Like this, if within these of the application are revised and modification belongs to the scope of the application's claim and equivalent technologies thereof, the application is also intended to comprise these changes and modification interior.
Claims (16)
1. base station sends a method for Indication message to communication terminal, it is characterized in that, described method comprises:
The uplink signal that base station monitors navigation terminal sends to satellite;
When base station determines that according to monitoring result need to trigger communication terminal execution reduces the operation that navigation terminal is disturbed, to described communication terminal, send the first Indication message, indicate described communication terminal to carry out the operation reducing navigation terminal interference.
2. base station as claimed in claim 1 sends the method for Indication message to communication terminal, it is characterized in that, described method also comprises:
When base station determines that according to monitoring result not needing to trigger communication terminal execution reduces the operation that navigation terminal is disturbed, judge whether described communication terminal is carrying out the operation reducing navigation terminal interference, if, to described communication terminal, send the second Indication message, indication communication terminal stops carrying out the operation reducing navigation terminal interference.
3. base station as claimed in claim 1 sends the method for Indication message to communication terminal, it is characterized in that, the uplink signal that base station monitors navigation terminal sends to satellite, specifically comprises:
Base station receives the uplink signal that the terminal in coverage sends;
The shared frequency range of uplink signal that base station sends to satellite according to navigation terminal is determined the uplink signal that navigation terminal sends to satellite from the uplink signal receiving.
4. base station as claimed in claim 1 sends the method for Indication message to communication terminal, it is characterized in that, base station determines whether in the following manner to trigger communication terminal and carries out the operation reducing navigation terminal interference:
Whether the quantity of the uplink signal that the navigation terminal that base station judgement monitors in setting duration sends to satellite reaches the first threshold value;
If so, determine that need to trigger communication terminal carries out the operation that reduction is disturbed navigation terminal, otherwise, determine that not needing to trigger communication terminal carries out the operation reducing navigation terminal interference; Or
Whether the gross energy of the uplink signal that the navigation terminal that base station judgement monitors in setting duration sends to satellite reaches the second threshold value;
If so, determine that need to trigger communication terminal carries out the operation that reduction is disturbed navigation terminal, otherwise, determine that not needing to trigger communication terminal carries out the operation reducing navigation terminal interference; Or
The uplink signal that base station sends to satellite the navigation terminal monitoring carries out demodulation, determines the special sequence in the uplink signal after demodulation, judges whether the degree of correlation of described special sequence and default specified sequence reaches the 3rd threshold value;
If so, determine that need to trigger communication terminal carries out the operation that reduction is disturbed navigation terminal, otherwise, determine that not needing to trigger communication terminal carries out the operation reducing navigation terminal interference.
5. base station as claimed in claim 1 sends the method for Indication message to communication terminal, it is characterized in that, base station sends the first Indication message to described communication terminal, indicates described communication terminal to carry out and reduces the operation that navigation terminal is disturbed, and is specially:
Base station is by sending the first Indication message to described communication terminal, and indication communication terminal reduces transmitted bandwidth; Or
Base station is by sending the first Indication message to described communication terminal, and indication communication terminal reduces the maximum transmission power of self; Or
Base station is by sending the first Indication message to described communication terminal, and indication communication terminal adopts extra maximum power reduction mode to reduce interference.
6. the base station as described in as arbitrary in claim 1～5 sends the method for Indication message to communication terminal, it is characterized in that, described method also comprises:
The positional information that sends the navigation terminal of uplink signal to satellite is determined in base station;
Base station is according to definite positional information, determine and described navigation terminal between distance be less than the communication terminal of set point;
Base station sends the first Indication message to communication terminal, specifically comprises:
Base station to determine and described navigation terminal between the distance communication terminal that is less than set point launch described the first Indication message.
7. a base station, is characterized in that, described base station comprises:
Monitoring modular, the uplink signal sending to satellite for monitoring navigation terminal;
Judge module, for determining whether that according to the monitoring result of described monitoring modular need to trigger communication terminal carries out the operation reducing navigation terminal interference;
Indicating module, while reducing for need to trigger communication terminal execution according to judgment result is that of described judge module the operation that navigation terminal is disturbed, to described communication terminal, send the first Indication message, indicate described communication terminal to carry out and reduce the operation that navigation terminal is disturbed.
8. base station as claimed in claim 7, is characterized in that, described indicating module, comprising:
The first indication submodule, for when judgment result is that need to trigger communication terminal execution reduces the operation that navigation terminal is disturbed, sends the first Indication message to described communication terminal, indicates described communication terminal to carry out the operation reducing navigation terminal interference;
The second indication submodule, for when judgment result is that not needing to trigger communication terminal execution reduces the operation that navigation terminal is disturbed, further judge whether described communication terminal is carrying out the operation reducing navigation terminal interference, if, to described communication terminal, send the second Indication message, indication communication terminal stops carrying out the operation reducing navigation terminal interference.
9. base station as claimed in claim 7, is characterized in that,
Described monitoring modular, the uplink signal sending specifically for the terminal receiving in coverage, and the shared frequency range of uplink signal sending to satellite according to navigation terminal, from the uplink signal receiving, determine the uplink signal that navigation terminal sends to satellite.
10. base station as claimed in claim 7, is characterized in that,
Judge module, whether the quantity of the uplink signal that the navigation terminal monitoring in setting duration specifically for judgement sends to satellite reaches the first threshold value, if so, determines that need to trigger communication terminal execution reduces the operation that navigation terminal is disturbed; Or
Whether the gross energy of the uplink signal that the navigation terminal that judgement monitors in setting duration sends to satellite reaches the second threshold value, if so, determines that need to trigger communication terminal carries out the operation that reduction is disturbed navigation terminal; Or
The uplink signal that the navigation terminal monitoring is sent to satellite carries out demodulation, determine the special sequence in the uplink signal after demodulation, whether the degree of correlation that judges described special sequence and default specified sequence reaches the 3rd threshold value, if so, determine that need to trigger communication terminal carries out the operation reducing navigation terminal interference.
11. base stations as described in as arbitrary in claim 7～10, is characterized in that, described base station also comprises:
Position determination module, for determining the positional information that sends the navigation terminal of uplink signal to satellite;
Communication terminal determination module, for according to definite positional information, determine and described navigation terminal between distance be less than the communication terminal of set point;
Described indicating module, specifically for to determine and described navigation terminal between the distance communication terminal that is less than set point launch described the first Indication message.
12. 1 kinds of communication terminals, is characterized in that, described communication terminal comprises:
Receiver module, for receiving the first Indication message from base station, described the first Indication message is base station according to the monitoring of the uplink signal that navigation terminal is sent to satellite, determines that need to trigger communication terminal carries out and send while reducing the operation that navigation terminal is disturbed;
Executive Module, for carrying out and reduce the operation that navigation terminal is disturbed according to described the first Indication message.
13. communication terminals as claimed in claim 12, is characterized in that,
Described receiver module, also for receiving the second Indication message from base station, described the second Indication message is that base station is according to the monitoring of the uplink signal that navigation terminal is sent to satellite, determine that do not need to trigger communication terminal carries out and reduce the operation that navigation terminal is disturbed, and definite communication terminal is being carried out and is being sent while reducing the operation that navigation terminal is disturbed;
Described Executive Module, also for stopping carrying out the operation reducing navigation terminal interference according to described the second Indication message.
14. communication terminals as claimed in claim 12, is characterized in that,
Described Executive Module, specifically for when receiving described the first Indication message, by following at least one mode, carry out and reduce the operation that navigation terminal is disturbed:
Reduce transmitted bandwidth, reduce the maximum transmission power of self and adopt extra maximum power reduction mode to reduce interference.
15. 1 kinds of communication systems, is characterized in that, comprising:
Base station, the uplink signal sending to satellite for monitoring navigation terminal, determines whether to trigger communication terminal according to monitoring result and carries out the operation reducing navigation terminal interference, if so, to described communication terminal, sends the first Indication message;
Communication terminal, for carrying out and reduce the operation that navigation terminal is disturbed according to described the first Indication message.
16. communication systems as claimed in claim 15, is characterized in that,
Described base station, also for determining that according to monitoring result do not need to trigger communication terminal carries out and reduce the operation that navigation terminal is disturbed, and definite communication terminal carrying out while reducing the operation that navigation terminal is disturbed, and to described communication terminal, sends the second Indication message;
Communication terminal, also for stopping carrying out the operation reducing navigation terminal interference according to described the second Indication message.
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| CN104125603B (en) | 2017-09-15 |
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