CN102547730B - Method and system for restraining interference between adjacent-channel coexisting systems - Google Patents
Method and system for restraining interference between adjacent-channel coexisting systems Download PDFInfo
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Abstract
The invention discloses a method and a system for restraining interference between adjacent-channel coexisting systems, which are applied to two communication systems in different modes. The method includes: a first communication node in a first communication system is subjected to or possibly subjected to adjacent-channel interference from a second communication node in a second communication system; and the first communication system and the second communication system cooperate for adjustment to control the adjacent-channel interference on the first communication node. The system comprises the first communication node in the first communication system and cooperative adjusting devices in the first communication system and the second communication system, wherein the first communication node is used for determining the adjacent-channel interference or possible adjacent-channel interference from the second communication node in the second communication system, and the cooperative adjusting devices are used for realizing cooperative adjustment between the first communication system and the second communication system to control the adjacent-channel interference on the first communication node. Using the method and the system can improve service quality of the system and frequency spectrum utilization rate and evidently improve adaptability of wireless communication systems to practical environment.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of suppressing method and system of adjacent frequency coexistence inter-system interference.
Background technology
Interference in communication system refers to that all enter the non-useful signal of channel or communication system.Inter-system interference refers to the interference that the signal produced by other system causes native system.Disturbance type between communication system has a lot, mainly comprises: adjacent frequency interference, clutter interference, Intermodulation Interference and barrage jamming etc.Adjacent frequency disturbs power when referring to interfering nodes frequency of utilization f1 to fall into the interference receiving and cause in the receiver pass-band of the signal of the frequency f 2 adjacent with f1.
The reason of interference is caused also to be various, comprise: original private radio system takies that existing frequency resource, different operators network configuration are improper, transceiver self offering question, electromagnetic compatibility problem etc., and these are all the reasons that communication network produces interference.
Along with the distribution of frequency spectrum resource on market, the practical application scene of adjacent frequency coexistence system gets more and more, Fig. 1 gives a kind of WiMAX(Worldwide Interoperability for Microwave Access using side frequency, worldwide interoperability for microwave accesses) system and FDD(Frequency Division Duplexing, Frequency Division Duplexing (FDD))-LTE(Long Term Evolution, Long Term Evolution) coexistence of systems time spectrum allocation may schematic diagram.Analyze known, when WiMAX system is deployed in 2570 ~ 2620MHz TDD(Time Division Duplexing, time division duplex) frequency range time, the mutual interference between FDD-LTE system and WiMAX system can be divided into following four kinds to disturb scene:
UE(User Equipment in (a) LTE system, subscriber equipment) disturb BS(Base Station in WiMAX system, base station);
B the UE in () LTE system disturbs the MS(Mobile Station in WiMAX system, travelling carriage);
NodeB(Node B in (c) LTE system) disturb MS in WiMAX system;
D the NodeB in () LTE system disturbs the BS in WiMAX system.
Suppose that WiMAX system and FDD-LTE system adopt colocation site networking mode, then adjacent LTE UE and WiMAX MS each other, WiMAX BS and LTE NodeB may produce very large interference each other.Suppose that WiMAX system and FDD-LTE system adopt not colocation site or part colocation site networking mode, then adjacent LTE UE and WiMAX MS each other, LTE NodeB and WiMAX MS each other, LTE UE and WiMAX BS may produce very large interference each other.
Avoid adjacent frequency to disturb by means of only the mode increasing boundary belt at present, waste valuable wireless communication resources.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of suppressing method and system of adjacent frequency coexistence inter-system interference, to solve the problem of the systematic function decline caused due to adjacent frequency interference between adjacent frequency coexistence system.
For solving the problem, the invention provides a kind of suppressing method of adjacent frequency coexistence inter-system interference, between two communication systems being applied to different systems, comprising:
The first communication node in first communication system determines the adjacent frequency interference being subject to maybe being subject to the second communication node come from second communication system;
First communication system and second communication cooperative system adjust, and control the adjacent frequency interference that described first communication node is subject to.
Further, said method also can have following characteristics:
Described first communication node determines whether the adjacent frequency interference being subject to maybe may being subject to coming from described second communication node according to the parameter information of the described second communication node received;
Wherein, the information of described second communication node comprises: any one or combination in any in the parameter information of communication system belonging to the information of reference signal of the identification information of described second communication node, positional information, transmission, the strength information of reference signal and described second communication node.
Further, said method also can have following characteristics:
Described first communication system and second communication cooperative system adjust, and control the adjacent frequency interference that described first communication node is subject to, specifically comprise:
The parameter information of the described second communication node received is sent to described second communication system by the first communication node;
Described first communication system communicates with described second communication system, and described first communication system is the described first communication node reception resource of distributing and described second communication system is that the transmission resource of described second communication peer distribution mutually staggers in time domain.
Further, said method also can have following characteristics:
Described first communication system and second communication cooperative system adjust, and control the adjacent frequency interference that described first communication node is subject to, specifically comprise:
The parameter information of the described second communication node received is sent to described second communication system by described first communication node;
Described first communication system communicates with described second communication system, and described first communication system to be the described first communication node reception resource of distributing and described second communication system the be transmission resource of described second communication peer distribution bandwidth apart on frequency domain is more than or equal to a preset bandwidth value.
Further, said method also can have following characteristics:
Described first communication system and second communication cooperative system adjust, and control the adjacent frequency interference that described first communication node is subject to, specifically comprise:
The parameter information of the described second communication node received is sent to described second communication system by described first communication node;
Described first communication system communicates with described second communication system, described second communication system does not send resource for described second communication peer distribution within the time period consulted with described first communication system, and described first communication system is that described first communication node distributes and receives resource within this time period.
Further, said method also can have following characteristics:
Described first communication system and second communication cooperative system adjust, and control the adjacent frequency interference that described first communication node is subject to, specifically comprise:
The parameter information of the described second communication node received is sent to described second communication system by described first communication node;
Described in described second communication notifications, second communication node is switched to described first communication system.
Further, said method also can have following characteristics:
Described first communication system and second communication cooperative system adjust, and control the adjacent frequency interference that described first communication node is subject to, specifically comprise:
Described first communication node obtains the information of described second communication system, and then initiate handover request to described first communication system, request is switched to described second communication system;
Described first communication system processes described handover request, indicates described first communication node to be switched in second communication system.
Further, said method also can have following characteristics:
The parameter information of the described second communication node received is sent to described second communication system by described first communication node, specifically comprises;
The parameter information of the described second communication node received directly is sent to described second communication system by described first communication node; Or,
The parameter information of the described second communication node received is sent to described first communication system by described first communication node, is transmitted to described second communication system by described first communication system.
Correspondingly, present invention also offers a kind of suppression system of adjacent frequency coexistence inter-system interference, between two communication systems being applied to different systems, comprising:
The first communication node in first communication system, for determining the adjacent frequency interference being subject to maybe being subject to the second communication node come from second communication system;
Cooperation adjusting device in first communication system and second communication system, adjusts for realizing cooperating between the first communication system with second communication system, controls the adjacent frequency interference that described first communication node is subject to.
Further, said system also can have following characteristics:
Described first communication node is used for determining whether that the adjacent frequency being subject to maybe may being subject to coming from described second communication node is disturbed according to the parameter information of the described second communication node received;
Wherein, the information of described second communication node comprises: any one or combination in any in the parameter information of communication system belonging to the information of reference signal of the identification information of described second communication node, positional information, transmission, the strength information of reference signal and described second communication node.
Further, said system also can have following characteristics:
First communication node is also for sending to described second communication system by the parameter information of the described second communication node received;
Cooperation adjusting device in described first communication system is used for communicating with the adjusting device that cooperates in described second communication system, and the transmission resource that the cooperation adjusting device in described first communication system is reception resource and the adjusting device that cooperates in described second communication system that described first communication node distributes is described second communication peer distribution mutually staggers in time domain.
Further, said system also can have following characteristics:
Described first communication node is also for sending to described second communication system by the parameter information of the described second communication node received;
Cooperation adjusting device in described first communication system communicates with the adjusting device that cooperates in described second communication system, and the transmission resource of to be reception resource and the adjusting device that cooperates in described second communication system that described first communication node distributes the be described second communication peer distribution of the cooperation adjusting device in described first communication system bandwidth apart on frequency domain is more than or equal to a preset bandwidth value.
Further, said system also can have following characteristics:
Described first communication node is used for the parameter information of the described second communication node received to send to described second communication system;
Cooperation adjusting device in described first communication system communicates with the adjusting device that cooperates in described second communication system, cooperation adjusting device in described second communication system was used for not sending resource for described second communication peer distribution within the time period consulted with the adjusting device that cooperates in described first communication system, and the cooperation adjusting device in described first communication system is used for being described first communication node distribution reception resource within this time period.
Further, said system also can have following characteristics:
Described first communication node is used for the parameter information of the described second communication node received to send to described second communication system;
Cooperation adjusting device in described second communication system is used for notifying that described second communication node is switched to described first communication system.
Further, said system also can have following characteristics:
Described first communication node is for obtaining the information of described second communication system, and then initiate handover request to described first communication system, request is switched to described second communication system;
Cooperation adjusting device in described first communication system is used for processing described handover request, indicates described first communication node to be switched in second communication system.
After adopting the present invention, adjacent frequency interference can be controlled according to actual networking situation and user distribution between adjacent frequency coexistence system, thus improve service quality and the spectrum utilization efficiency of system, improve wireless communication system significantly to the adaptability of actual environment.
Accompanying drawing explanation
Spectrum allocation may schematic diagram when Fig. 1 is WiMAX system and the FDD-LTE coexistence of systems using side frequency in prior art;
Fig. 2 is the AF panel flow chart in the embodiment of the present invention between adjacent frequency coexistence system;
Fig. 3 is the interference schematic diagram in application example 1 of the present invention between WiMAX system and FDD-LTE coexistence of systems terminal;
Fig. 4 is WiMAX system and FDD-LTE system adjacent frequency coexistence AF panel flow chart in application example 1 of the present invention;
Fig. 5 is WiMAX system and FDD-LTE system adjacent frequency coexistence AF panel flow chart in application example 2 of the present invention;
Fig. 6 is WiMAX system and FDD-LTE system adjacent frequency coexistence AF panel flow chart in application example 3 of the present invention;
Fig. 7 is WiMAX system and FDD-LTE system adjacent frequency coexistence AF panel flow chart in application example 4 of the present invention.
Embodiment
In the present embodiment, adjacent frequency coexistence system can be: GSM(Global System for Mobile Communications, global system for mobile communications), CDMA(Code Division Multiple Access, code division multiple access) 2000, CDMA EV-DO(Evolution Data Only, only for the evolution of data), WiMAX, LTE, WCDMA(Wideband Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA)), UMB(Ultra Mobile Broadband, Ultra-Mobile Broadband), IEEE(Institute of Electrical and Electronics Engineers) combination in any of two kinds of any different systems such as 802.11 grade or the wireless communication system of two or more standard.
In the present embodiment, the disturbance restraining method between adjacent frequency coexistence system, between two communication systems being applied to different systems, as shown in Figure 2, comprising:
The first communication node in step 10, the first communication system determines the adjacent frequency interference being subject to maybe being subject to the second communication node come from second communication system; Conflicting mode can be as shown in Figure 3.
Wherein, above-mentioned first communication node and second communication node can be the terminal equipment in communication system.First communication node determines whether the adjacent frequency interference being subject to maybe being subject to coming from second communication node according to the parameter information of second communication node.The parameter information of second communication node can comprise following one of at least: the information of reference signal of the identification information of second communication node, positional information, transmission or parameter information (the i.e. parameter information of second communication system of affiliated communication system.This parameter information can be any information of second communication system, as long as the upper layer device of the first communication system can search second communication system according to this parameter information).When specific implementation, the parameter information of second communication node can send to the first communication node by second communication node by second communication system, the first communication system, also the first communication node can be sent to by second communication node by the first communication system, the first communication node can also be directly sent to by second communication node.
Step 20, the first communication system and/or second communication cooperative system adjust, and control the adjacent frequency interference that described first communication node is subject to.
When specific implementation, this step can by following several implementation:
Mode one:
After A, the adjacent frequency interference determining to be subject to maybe being subject to the second communication node come from second communication system at the first communication node, the parameter information of the second communication node received can be sent to second communication system, send mode can be send to second communication system by the first communication system, or directly sends to second communication system;
B, the first communication system communicate with second communication system, and the first communication system is the first communication node reception resource of distributing and second communication system is that the transmission resource of second communication peer distribution staggers in time mutually.
Mode two:
After A, the adjacent frequency interference determining to be subject to maybe being subject to the second communication node come from second communication system at the first communication node, the parameter information of the second communication node received can be sent to second communication system, send mode can be send to second communication system by the first communication system, or directly sends to second communication system;
B, the first communication system communicate with second communication system, the transmission resource that first communication system is reception resource and second communication system that the first communication node distributes is second communication peer distribution takies phase in the same time in time domain, and on frequency domain, bandwidth is apart more than or equal to a preset bandwidth value.
Mode three:
After A, the adjacent frequency interference determining to be subject to maybe being subject to the second communication node come from second communication system at the first communication node, the parameter information of the second communication node received can be sent to second communication system, send mode can be send to second communication system by the first communication system, or directly sends to second communication system;
B, the first communication system communicate with second communication system, second communication system is not for second communication peer distribution sends resource within the time period consulted with the first communication system, and the first communication system can be the first communication node and distributes and receive resource within this time period.
Mode four:
After A, the adjacent frequency interference determining to be subject to maybe being subject to the second communication node come from second communication system at the first communication node, the parameter information of the second communication node received can be sent to second communication system, send mode can be send to second communication system by the first communication system, or directly sends to second communication system;
B, second communication notifications second communication node are switched to the first communication system.Certainly, before notice second communication node is switched to the first communication system, second communication system also needs the information interaction of carrying out some necessity with the first communication system, as the contextual information, ability information etc. of second communication node.This interaction flow with reference to prior art, no longer can repeat at this.
Mode five:
After A, the adjacent frequency interference determining to be subject to maybe being subject to the second communication node come from second communication system at the first communication node, obtain the information of second communication system, then initiate handover request to the first communication system, request is switched to second communication system;
B, described first communication system process handover request, indicate the first communication node to be switched in second communication system.
Certainly, before notifying that the first communication node is switched to second communication system, the first communication system also needs the information interaction of carrying out some necessity with second communication system, as the contextual information, ability information etc. of the first communication node.This interaction flow with reference to prior art, no longer can repeat at this.
In step 10, when comprising the information of the reference signal that second communication node sends in the parameter information of second communication node, the reference signal that first communication node can send according to this infomation detection second communication node, then the quality information of this reference signal is obtained, and determine whether this node is subject to maybe may being subject to coming from the adjacent frequency interference of second communication node according to this quality information, namely when the value of the quality information of this reference signal is more than or equal to a preset quality value, then can determine that this node can be subject to maybe may being subject to coming from the adjacent frequency interference of second communication node.Wherein, the frequency that second communication node can use in the first communication system sends above-mentioned reference signal, or above-mentioned reference signal is sent in the frequency of second communication system use, other frequency can also appointed in the first communication system and second communication system sends above-mentioned reference signal.
The present embodiment additionally provides a kind of suppression system of adjacent frequency coexistence inter-system interference, between two communication systems being applied to different systems, comprising:
The first communication node in first communication system, for determining the adjacent frequency interference being subject to maybe being subject to the second communication node come from second communication system;
Cooperation adjusting device in first communication system and second communication system, adjusts for realizing cooperating between the first communication system with second communication system, controls the adjacent frequency interference that described first communication node is subject to.
Further,
Described first communication node is used for determining whether that the adjacent frequency being subject to maybe may being subject to coming from described second communication node is disturbed according to the parameter information of the described second communication node received;
Wherein, the information of described second communication node comprises: any one or combination in any in the parameter information of communication system belonging to the information of reference signal of the identification information of described second communication node, positional information, transmission, the strength information of reference signal and described second communication node.
Further,
First communication node is also for sending to described second communication system by the parameter information of the described second communication node received;
Cooperation adjusting device in described first communication system is used for communicating with the adjusting device that cooperates in described second communication system, and the transmission resource that the cooperation adjusting device in described first communication system is reception resource and the adjusting device that cooperates in described second communication system that described first communication node distributes is described second communication peer distribution mutually staggers in time domain.
Further,
Described first communication node is also for sending to described second communication system by the parameter information of the described second communication node received;
Cooperation adjusting device in described first communication system communicates with the adjusting device that cooperates in described second communication system, and the transmission resource of to be reception resource and the adjusting device that cooperates in described second communication system that described first communication node distributes the be described second communication peer distribution of the cooperation adjusting device in described first communication system bandwidth apart on frequency domain is more than or equal to a preset bandwidth value.
Further,
Described first communication node is used for the parameter information of the described second communication node received to send to described second communication system;
Cooperation adjusting device in described first communication system communicates with the adjusting device that cooperates in described second communication system, cooperation adjusting device in described second communication system was used for not sending resource for described second communication peer distribution within the time period consulted with the adjusting device that cooperates in described first communication system, and the cooperation adjusting device in described first communication system is used for being described first communication node distribution reception resource within this time period.
Further,
Described first communication node is used for the parameter information of the described second communication node received to send to described second communication system;
Cooperation adjusting device in described second communication system is used for notifying that described second communication node is switched to described first communication system.
Further,
Described first communication node is for obtaining the information of described second communication system, and then initiate handover request to described first communication system, request is switched to described second communication system;
Cooperation adjusting device in described first communication system is used for processing described handover request, indicates described first communication node to be switched in second communication system.
After adopting the present invention, adjacent frequency interference can be controlled according to actual networking situation and user distribution between adjacent frequency coexistence system, thus improve service quality and the spectrum utilization efficiency of system, improve wireless communication system significantly to the adaptability of actual environment.
The flow process of Fig. 2 is further illustrated below in conjunction with application example 1 ~ application example 7.It may be noted that application example 1 ~ application example 7 is mainly described with the adjacent frequency disturbance restraining method of terminal to terminal, described method is equally applicable to terminal and controls terminal, the adjacent frequency interference of base station to base station base station, base station, does not repeat them here.
Application example 1
As shown in Figure 3, when WiMAX system and FDD-LTE system adjacent frequency coexistence, in FDD-LTE system, terminal UE-1 determines the interference being subject to maybe may being subject to from terminal MS-2 in WiMAX system.
As shown in Figure 4, the disturbance restraining method between adjacent frequency coexistence system, comprises the following steps:
1, the signaling comprising UE-1 parameter information is sent to WiMAX system by FDD-LTE system; Wherein, the parameter information of UE-1, comprises the reference signal information that UE-1 sends;
2, WiMAX system utilizes control signal that the parameter information of UE-1 is sent MS-2;
3, according to the parameter information of the UE-1 received, MS-2 judges whether that being subject to the adjacent frequency that maybe may be subject to from UE-1 disturbs, and this process is also equivalent to judge that whether MS-2 itself is to maybe adjacent frequency being caused to disturb to UE-1;
If comprise the positional information of UE-1 in parameter information, then according to the distance size of the positional information of UE-1 and oneself positional information, MS-2 can judge whether UE-1 may be subject to the interference of oneself, even therebetween, when distance is less than or equal to a predeterminable range, then MS-2 can determine that the adjacent frequency that self can be subject to maybe being subject to UE-1 is disturbed;
If comprise the reference signal information of UE-1 transmission in parameter information, then MS-2 according to the reference signal of this information scanning UE-1 transmission, can judge whether UE-1 causes interference to oneself.In scanning process, the reference signal that MS-2 can send at the scan over frequencies UE-1 of oneself work, or in the reference signal that the scan over frequencies UE-1 of UE-1 work sends, or after being communicated by specific agreement (short-range communication protocols such as such as bluetooth) with UE-1, judge whether UE-1 may cause interference to oneself.
If 4 judge that being subject to the adjacent frequency that maybe may be subject to from UE-1 disturbs, then MS-2 can notify WiMAX system, and the resource allocation conditions adjusting MS-2 by the serving BS BS-2 of MS-2 by WiMAX system, disturbs the adjacent frequency of UE-1 with control MS-2.
Application example 2
As shown in Figure 3, when WiMAX system and FDD-LTE system adjacent frequency coexistence, in FDD-LTE system, terminal UE-1 may be subject to or be subject to the interference from terminal MS-2 in WiMAX system.
As shown in Figure 5, the disturbance restraining method between adjacent frequency coexistence system, comprises the following steps:
1, UE-1 determines the interference that self is subject to maybe may being subject to from terminal MS-2 in WiMAX system according to the parameter information of MS-2 obtained; Judgment mode goes up an application example as seen;
2, the parameter information of above-mentioned MS-2 is sent to its serving BS NodeB-1 by UE-1, and the signaling comprising MS-2 parameter information is sent to WiMAX system by the FDD-LTE system belonging to NodeB-1;
3, WiMAX system is by the resource allocation conditions of the serving BS BS-2 adjustment MS-2 of MS-2, disturbs the adjacent frequency of UE-1 with control MS-2.
Application example 3
As shown in Figure 3, when WiMAX system and FDD-LTE system adjacent frequency coexistence, in FDD-LTE system, terminal UE-1 may be subject to or be subject to the interference from terminal MS-2 in WiMAX system.
As shown in Figure 6, the disturbance restraining method between adjacent frequency coexistence system, comprises the following steps:
1, UE-1 determines the interference that self is subject to maybe may being subject to from terminal MS-2 in WiMAX system according to the parameter information of MS-2 obtained; The visible application example one of judgment mode;
2, the parameter information of the MS-2 of acquisition is directly sent to WiMAX system (the serving BS BS-2 of such as MS-2) by signaling by UE-1, WiMAX system adjusts the resource allocation conditions of MS-2 by the serving BS BS-2 of MS-2, disturbs the adjacent frequency of UE-1 with control MS-2.
Application example 4
As shown in Figure 3, when WiMAX system and FDD-LTE system adjacent frequency coexistence, in FDD-LTE system, terminal UE-1 may be subject to or be subject to the interference from terminal MS-2 in WiMAX system.
Disturbance restraining method between adjacent frequency coexistence system, comprising:
1, UE-1 determines the interference that self is subject to maybe may being subject to from terminal MS-2 in WiMAX system according to the parameter information of MS-2 obtained; The visible application example one of judgment mode;
2, the parameter information of the MS-2 of acquisition is sent to FDD-LTE system by signaling by UE-1, WiMAX system and FDD-LTE system pass through Signalling exchange, adopt default interference coordination pattern, as shown in Figure 7, the serving BS Node-1 of UE-1 is the reception resource of UE-1 distribution and the serving BS BS-2 of MS-2 is that the transmission resource that it distributes staggers in time mutually.
Current, WiMAX system and FDD-LTE system can consult concrete resource distribution mode.
Application example 5
As shown in Figure 3, when WiMAX system and FDD-LTE system adjacent frequency coexistence, in FDD-LTE system, terminal UE-1 may be subject to or be subject to the interference from terminal MS-2 in WiMAX system.
Disturbance restraining method between adjacent frequency coexistence system, comprising:
1, UE-1 determines the interference that self is subject to maybe may being subject to from terminal MS-2 in WiMAX system according to the parameter information of MS-2 obtained; The visible application example one of judgment mode;
2, the parameter information of the MS-2 of acquisition is sent to FDD-LTE system by signaling by UE-1, WiMAX system and FDD-LTE system pass through Signalling exchange, adopt default interference coordination pattern, the serving BS Node-1 of UE-1 is the serving BS BS-2 of the UE-1 reception resource of distributing and MS-2 be the transmission resource that it distributes is synchronization in time, frequency is wider than given threshold value T1 at a distance of band, and threshold value chooses size and base station equipment attribute, terminal equipment attribute is relevant.
Application example 6
As shown in Figure 3, when WiMAX system and FDD-LTE system adjacent frequency coexistence, in FDD-LTE system, terminal UE-1 may be subject to or be subject to the interference from terminal MS-2 in WiMAX system.
Disturbance restraining method between adjacent frequency coexistence system, comprising:
1, UE-1 determines the interference that self is subject to maybe may being subject to from terminal MS-2 in WiMAX system according to the parameter information of MS-2 obtained; The visible application example one of judgment mode;
2, UE-1 obtains the parameter information of WiMAX system network element, and preferably, described parameter information is the parameter information of Node-2;
3, UE-1 initiatively initiates or is switched in WiMAX network according to the instruction of oneself serving BS Node-1.
Application example 7
As shown in Figure 3, when WiMAX system and FDD-LTE system adjacent frequency coexistence, in FDD-LTE system, terminal UE-1 may be subject to or be subject to the interference from terminal MS-2 in WiMAX system.
Disturbance restraining method between adjacent frequency coexistence system, comprising:
1, UE-1 determines the interference that self is subject to maybe may being subject to from terminal MS-2 in WiMAX system according to the parameter information of MS-2 obtained; The visible application example one of judgment mode;
2, the parameter information of the MS-2 of acquisition is sent to WiMAX system by signaling by UE-1, and WiMAX system is switched in FDD-LTE network by the serving BS BS-2 instruct MS-2 of MS-2.
As mentioned above, by the technical scheme that application example of the present invention provides, by effective adjacent frequency interference control method to improve the service efficiency of frequency resource, improve the performance of whole wireless communication system.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. a suppressing method for adjacent frequency coexistence inter-system interference, between two communication systems being applied to different systems, comprising:
The first communication node in first communication system determines the adjacent frequency interference being subject to maybe being subject to the second communication node come from second communication system;
First communication system and second communication cooperative system adjust, and control the adjacent frequency interference that described first communication node is subject to;
Described first communication node determines whether the adjacent frequency interference being subject to maybe may being subject to coming from described second communication node according to the parameter information of the described second communication node received;
Wherein, the information of described second communication node comprises: any one or combination in any in the parameter information of communication system belonging to the information of reference signal of the identification information of described second communication node, positional information, transmission, the strength information of reference signal and described second communication node.
2. the method for claim 1, is characterized in that:
Described first communication system and second communication cooperative system adjust, and control the adjacent frequency interference that described first communication node is subject to, specifically comprise:
The parameter information of the described second communication node received is sent to described second communication system by the first communication node;
Described first communication system communicates with described second communication system, and described first communication system is the described first communication node reception resource of distributing and described second communication system is that the transmission resource of described second communication peer distribution mutually staggers in time domain.
3. the method for claim 1, is characterized in that:
Described first communication system and second communication cooperative system adjust, and control the adjacent frequency interference that described first communication node is subject to, specifically comprise:
The parameter information of the described second communication node received is sent to described second communication system by described first communication node;
Described first communication system communicates with described second communication system, and described first communication system to be the described first communication node reception resource of distributing and described second communication system the be transmission resource of described second communication peer distribution bandwidth apart on frequency domain is more than or equal to a preset bandwidth value.
4. the method for claim 1, is characterized in that:
Described first communication system and second communication cooperative system adjust, and control the adjacent frequency interference that described first communication node is subject to, specifically comprise:
The parameter information of the described second communication node received is sent to described second communication system by described first communication node;
Described first communication system communicates with described second communication system, described second communication system does not send resource for described second communication peer distribution within the time period consulted with described first communication system, and described first communication system is that described first communication node distributes and receives resource within this time period.
5. the method for claim 1, is characterized in that:
Described first communication system and second communication cooperative system adjust, and control the adjacent frequency interference that described first communication node is subject to, specifically comprise:
The parameter information of the described second communication node received is sent to described second communication system by described first communication node;
Described in described second communication notifications, second communication node is switched to described first communication system.
6. the method for claim 1, is characterized in that:
Described first communication system and second communication cooperative system adjust, and control the adjacent frequency interference that described first communication node is subject to, specifically comprise:
Described first communication node obtains the information of described second communication system, and then initiate handover request to described first communication system, request is switched to described second communication system;
Described first communication system processes described handover request, indicates described first communication node to be switched in second communication system.
7., as the method in claim 2 ~ 5 as described in any one, it is characterized in that,
The parameter information of the described second communication node received is sent to described second communication system by described first communication node, specifically comprises;
The parameter information of the described second communication node received directly is sent to described second communication system by described first communication node; Or,
The parameter information of the described second communication node received is sent to described first communication system by described first communication node, is transmitted to described second communication system by described first communication system.
8. a suppression system for adjacent frequency coexistence inter-system interference, between two communication systems being applied to different systems, comprising:
The first communication node in first communication system, for determining the adjacent frequency interference being subject to maybe being subject to the second communication node come from second communication system;
Cooperation adjusting device in first communication system and second communication system, adjusts for realizing cooperating between the first communication system with second communication system, controls the adjacent frequency interference that described first communication node is subject to;
Described first communication node is used for determining whether that the adjacent frequency being subject to maybe may being subject to coming from described second communication node is disturbed according to the parameter information of the described second communication node received;
Wherein, the information of described second communication node comprises: any one or combination in any in the parameter information of communication system belonging to the information of reference signal of the identification information of described second communication node, positional information, transmission, the strength information of reference signal and described second communication node.
9. system as claimed in claim 8, is characterized in that:
First communication node is also for sending to described second communication system by the parameter information of the described second communication node received;
Cooperation adjusting device in described first communication system is used for communicating with the adjusting device that cooperates in described second communication system, and the transmission resource that the cooperation adjusting device in described first communication system is reception resource and the adjusting device that cooperates in described second communication system that described first communication node distributes is described second communication peer distribution mutually staggers in time domain.
10. system as claimed in claim 8, is characterized in that:
Described first communication node is also for sending to described second communication system by the parameter information of the described second communication node received;
Cooperation adjusting device in described first communication system communicates with the adjusting device that cooperates in described second communication system, and the transmission resource of to be reception resource and the adjusting device that cooperates in described second communication system that described first communication node distributes the be described second communication peer distribution of the cooperation adjusting device in described first communication system bandwidth apart on frequency domain is more than or equal to a preset bandwidth value.
11. systems as claimed in claim 8, is characterized in that:
Described first communication node is used for the parameter information of the described second communication node received to send to described second communication system;
Cooperation adjusting device in described first communication system communicates with the adjusting device that cooperates in described second communication system, cooperation adjusting device in described second communication system was used for not sending resource for described second communication peer distribution within the time period consulted with the adjusting device that cooperates in described first communication system, and the cooperation adjusting device in described first communication system is used for being described first communication node distribution reception resource within this time period.
12. systems as claimed in claim 8, is characterized in that:
Described first communication node is used for the parameter information of the described second communication node received to send to described second communication system;
Cooperation adjusting device in described second communication system is used for notifying that described second communication node is switched to described first communication system.
13. systems as claimed in claim 8, is characterized in that:
Described first communication node is for obtaining the information of described second communication system, and then initiate handover request to described first communication system, request is switched to described second communication system;
Cooperation adjusting device in described first communication system is used for processing described handover request, indicates described first communication node to be switched in second communication system.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010591679.8A CN102547730B (en) | 2010-12-16 | 2010-12-16 | Method and system for restraining interference between adjacent-channel coexisting systems |
| PCT/CN2011/075655 WO2012079349A1 (en) | 2010-12-16 | 2011-06-13 | Method and system for restraining interference between neighboring frequency coexistent systems |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010591679.8A CN102547730B (en) | 2010-12-16 | 2010-12-16 | Method and system for restraining interference between adjacent-channel coexisting systems |
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| CN102547730B true CN102547730B (en) | 2015-05-06 |
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| CN103841061B (en) * | 2012-11-26 | 2017-01-25 | 北京中天联科科技有限公司 | Receiving system and method for restraining adjacent channel interference |
| CN104301901B (en) * | 2013-07-19 | 2018-01-30 | 中国移动通信集团公司 | The detection method disturbed between GSM, apparatus and system |
| CN103517280B (en) * | 2013-10-10 | 2016-05-25 | 清华大学 | Be applicable to disturb in amorphous meshed network the semi-static frequency multiplexing method of inhibition |
| WO2015061984A1 (en) * | 2013-10-30 | 2015-05-07 | 华为技术有限公司 | Method and device for eliminating intersystem neighboring frequency interference |
| WO2016015226A1 (en) * | 2014-07-29 | 2016-02-04 | 华为技术有限公司 | Interference coordination method and device |
| CN105376864A (en) * | 2015-11-11 | 2016-03-02 | 深圳市金立通信设备有限公司 | Data transmission control method and network device |
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| CN1430429A (en) * | 2001-12-30 | 2003-07-16 | 华为技术有限公司 | Interference reducing method of frequency dirision duplex and time dirision duplex multi carrier adjacent frequency time |
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| WO2012079349A1 (en) | 2012-06-21 |
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