CN102547730A - 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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- CN102547730A CN102547730A CN2010105916798A CN201010591679A CN102547730A CN 102547730 A CN102547730 A CN 102547730A CN 2010105916798 A CN2010105916798 A CN 2010105916798A CN 201010591679 A CN201010591679 A CN 201010591679A CN 102547730 A CN102547730 A CN 102547730A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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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, relate in particular to a kind of inhibition method and system of adjacent frequency coexistence inter-system interference.
Background technology
Interference in the communication system is meant that all get into the non-useful signal of channel or communication system.Inter-system interference is meant the interference that the signal that produced by other system causes native system.Disturbance type between communication system has a lot, mainly comprises: adjacent interference frequently, clutter interference, Intermodulation Interference and barrage jamming etc.Adjacent frequency disturbs the power when referring to interfering nodes frequency of utilization f1 to fall into the interference that causes in the receiver pass-band of the signal that receives the frequency f 2 adjacent with f1.
The reason that causes interference also is various; Comprise: original private radio system takies that existing frequency resource, different operators network configuration are improper, transceiver self is provided with problem, electromagnetic compatibility problem or the like, and these all are that communication network produces the reason of disturbing.
Distribution along with frequency spectrum resource on the market; The practical application scene of adjacent frequency coexistence system is more and more; Fig. 1 has provided a kind of WiMAX (Worldwide Interoperability for Microwave Access that uses side frequency; Worldwide interoperability for microwave inserts) spectrum allocation may sketch map when system and FDD (Frequency Division Duplexing, FDD)-LTE (Long Term Evolution, Long Term Evolution) coexistence of systems.Analysis can know, when WiMAX system deployment during in 2570 ~ 2620MHz TDD (Time Division Duplexing, time division duplex) frequency range, the coexistence between FDD-LTE system and the WiMAX system is disturbed and can be divided into following four kinds and disturb scenes:
(a) UE in the LTE system (User Equipment, subscriber equipment) disturbs the BS (Base Station, base station) in the WiMAX system;
(b) UE in the LTE system disturbs the MS (Mobile Station, travelling carriage) in the WiMAX system;
(c) NodeB (Node B) in the LTE system disturbs the MS in the WiMAX system;
(d) NodeB in the LTE system disturbs the BS in the WiMAX system.
Suppose that WiMAX system and FDD-LTE system adopt the colocation site networking mode, then adjacent LTE UE and WiMAX MS are 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.
Only avoid adjacent at present and disturb frequently, wasted valuable wireless communication resources through the mode that increases boundary belt.
Summary of the invention
The technical problem that the present invention will solve provides a kind of inhibition method and system of adjacent frequency coexistence inter-system interference, to solve between the adjacent frequency coexistence system owing to the adjacent problem of disturbing the systematic function decline that causes frequently.
For addressing the above problem, the invention provides a kind of inhibition method of adjacent frequency coexistence inter-system interference, be applied to comprise between two communication systems of different systems:
First communication node in first communication system confirms to receive the adjacent interference frequently that maybe possibly receive the second communication node that comes from the second communication system;
The adjacent interference frequently that said first communication node receives is controlled in first communication system and the adjustment of second communication cooperative system.
Further, said method also can have following characteristic:
The parameter information of the said second communication node that said first communication node basis receives determines whether to receive and maybe possibly receive the adjacent interference frequently that comes from said second communication node;
Wherein, the information of said second communication node comprises: any one or combination in any under the information of the reference signal of the identification information of said second communication node, positional information, transmission, the strength information of reference signal and the said second communication node in the parameter information of communication system.
Further, said method also can have following characteristic:
The adjacent interference frequently that said first communication node receives is controlled in said first communication system and the adjustment of second communication cooperative system, specifically comprises:
The parameter information of the said second communication node that first communication node will be received sends to said second communication system;
Said first communication system and said second communication system communicate, and said first communication system is said first communication node reception resource of distributing and said second communication system is that the transmission resource of said second communication node distribution staggers on time domain each other.
Further, said method also can have following characteristic:
The adjacent interference frequently that said first communication node receives is controlled in said first communication system and the adjustment of second communication cooperative system, specifically comprises:
The parameter information of the said second communication node that said first communication node will be received sends to said second communication system;
Said first communication system and said second communication system communicate, said first communication system be said first communication node reception resource of distributing with said second communication system be the transmission resource of said second communication node distribution on frequency domain apart bandwidth more than or equal to a preset bandwidth value.
Further, said method also can have following characteristic:
The adjacent interference frequently that said first communication node receives is controlled in said first communication system and the adjustment of second communication cooperative system, specifically comprises:
The parameter information of the said second communication node that said first communication node will be received sends to said second communication system;
Said first communication system and said second communication system communicate; Said second communication system does not send resource for said second communication node distributes in a time period that consults with said first communication system, said first communication system be that said first communication node distributes the reception resource in this time period.
Further, said method also can have following characteristic:
The adjacent interference frequently that said first communication node receives is controlled in said first communication system and the adjustment of second communication cooperative system, specifically comprises:
The parameter information of the said second communication node that said first communication node will be received sends to said second communication system;
The said second communication node of said second communication notifications switches to said first communication system.
Further, said method also can have following characteristic:
The adjacent interference frequently that said first communication node receives is controlled in said first communication system and the adjustment of second communication cooperative system, specifically comprises:
Said first communication node obtains the information of said second communication system, initiates handoff request to said first communication system then, and request switches to said second communication system;
Said first communication system is handled said handoff request, indicates said first communication node to switch in the second communication system.
Further, said method also can have following characteristic:
The parameter information of the said second communication node that said first communication node will be received sends to said second communication system, specifically comprises;
The parameter information of the said second communication node that said first communication node will be received directly sends to said second communication system; Perhaps,
The parameter information of the said second communication node that said first communication node will be received sends to said first communication system, is transmitted to said second communication system by said first communication system.
Correspondingly, the present invention also provides a kind of inhibition system of adjacent frequency coexistence inter-system interference, is applied to comprise between two communication systems of different systems:
First communication node in first communication system is used for confirming to receive the adjacent interference frequently that maybe possibly receive the second communication node that comes from the second communication system;
Cooperation adjusting device in first communication system and the second communication system is used to realize the cooperation adjustment between first communication system and the second communication system, controls the adjacent interference frequently that said first communication node receives.
Further, said system also can have following characteristic:
Said first communication node is used for parameter information according to the said second communication node that receives to be determined whether to receive maybe possibly receive and comes from the adjacent of said second communication node and disturb frequently;
Wherein, the information of said second communication node comprises: any one or combination in any under the information of the reference signal of the identification information of said second communication node, positional information, transmission, the strength information of reference signal and the said second communication node in the parameter information of communication system.
Further, said system also can have following characteristic:
First communication node also is used for parameter information with the said second communication node of receiving and sends to said second communication system;
Cooperation adjusting device in said first communication system is used for communicating with the cooperation adjusting device of said second communication system, the cooperation adjusting device in said first communication system be said first communication node reception resource of distributing with said second communication system in the cooperation adjusting device be that the transmission resource of said second communication node distribution staggers on time domain each other.
Further, said system also can have following characteristic:
Said first communication node also is used for parameter information with the said second communication node of receiving and sends to said second communication system;
Cooperation adjusting device in cooperation adjusting device in said first communication system and the said second communication system communicates, the cooperation adjusting device in said first communication system be said first communication node reception resource of distributing with said second communication system in the cooperation adjusting device be the transmission resource of said second communication node distribution on frequency domain apart bandwidth more than or equal to a preset bandwidth value.
Further, said system also can have following characteristic:
Said first communication node is used for parameter information with the said second communication node of receiving and sends to said second communication system;
Cooperation adjusting device in cooperation adjusting device in said first communication system and the said second communication system communicates; Cooperation adjusting device in the said second communication system is used in the time period that the cooperation adjusting device with said first communication system consults, not sending resource for said second communication node distributes, and the cooperation adjusting device in said first communication system is used in this time period, receiving resource for said first communication node distributes.
Further, said system also can have following characteristic:
Said first communication node is used for parameter information with the said second communication node of receiving and sends to said second communication system;
Cooperation adjusting device in the said second communication system is used to notify said second communication node to switch to said first communication system.
Further, said system also can have following characteristic:
Said first communication node is used to obtain the information of said second communication system, initiates handoff request to said first communication system then, and request switches to said second communication system;
Cooperation adjusting device in said first communication system is used for said handoff request is handled, and indicates said first communication node to switch in the second communication system.
After adopting the present invention, can control adjacent interference frequently according to actual networking situation and user distribution between the adjacent frequency coexistence system, thereby improve the service quality and the spectrum utilization efficiency of system, improve the adaptability of wireless communication system significantly actual environment.
Description of drawings
Fig. 1 is the spectrum allocation may sketch map when using WiMAX system and the FDD-LTE coexistence of systems of side frequency in the prior art;
Fig. 2 is that the interference between the adjacent frequency coexistence system suppresses flow chart in the embodiment of the invention;
Fig. 3 is the interference sketch map between WiMAX system in the applying examples 1 of the present invention and the FDD-LTE coexistence of systems terminal;
Fig. 4 is WiMAX system in the applying examples 1 of the present invention and FDD-LTE system adjacent frequency coexistence interference inhibition flow chart;
Fig. 5 is WiMAX system in the applying examples 2 of the present invention and FDD-LTE system adjacent frequency coexistence interference inhibition flow chart;
Fig. 6 is WiMAX system in the applying examples 3 of the present invention and FDD-LTE system adjacent frequency coexistence interference inhibition flow chart;
Fig. 7 is WiMAX system in the applying examples 4 of the present invention and FDD-LTE system adjacent frequency coexistence interference inhibition flow chart.
Embodiment
In the present embodiment; The 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 to the evolution of data), WiMAX, LTE, WCDMA (Wideband Code Division Multiple Access; WCDMA), the combination in any of the wireless communication system of two kinds of any different systems such as UMB (Ultra Mobile Broadband, Ultra-Mobile Broadband), IEEE (Institute of Electrical and Electronics Engineers) 802.11 or two or more standards.
In the present embodiment, the disturbance restraining method between the adjacent frequency coexistence system is applied between two communication systems of different systems, and is as shown in Figure 2, comprising:
First communication node in step 10, first communication system confirms to receive the adjacent interference frequently that maybe possibly receive the second communication node that comes from the 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 the communication system.First communication node determines whether to receive maybe possibly receive according to the parameter information of second communication node and comes from the adjacent of second communication node and disturb frequently.The parameter information of second communication node can comprise following one of at least: the information of the reference signal of the identification information of second communication node, positional information, transmission or the parameter information of affiliated communication system (are the parameter information of second communication system.This parameter information can be any information of second communication system, as long as the upper layer device of first communication system can search the second communication system according to this parameter information).When concrete the realization; The parameter information of second communication node can send to first communication node through second communication system, first communication system by the second communication node; Also can send to first communication node through first communication system, can also directly send to first communication node by the second communication node by the second communication node.
The adjacent interference frequently that said first communication node receives is controlled in step 20, first communication system and/or the adjustment of second communication cooperative system.
When concrete the realization, this step can be by following several kinds of implementations:
Mode one:
A, confirm to receive after maybe possibly receive the second communication node that comes from the second communication system adjacent disturb frequently at first communication node; Can the parameter information of the second communication node of receiving be sent to the second communication system; Send mode can be to send to the second communication system through first communication system, or directly sends to the second communication system;
B, first communication system and second communication system communicate, and first communication system is that reception resource and the second communication system that first communication node distributes staggers for the transmission resource that the second communication node distributes in time each other.
Mode two:
A, confirm to receive after maybe possibly receive the second communication node that comes from the second communication system adjacent disturb frequently at first communication node; Can the parameter information of the second communication node of receiving be sent to the second communication system; Send mode can be to send to the second communication system through first communication system, or directly sends to the second communication system;
B, first communication system and second communication system communicate; To be first communication node reception resource of distributing take the identical moment with the second communication system for the transmission resource of second communication node distribution to first communication system on time domain, and apart bandwidth is more than or equal to a preset bandwidth value on frequency domain.
Mode three:
A, confirm to receive after maybe possibly receive the second communication node that comes from the second communication system adjacent disturb frequently at first communication node; Can the parameter information of the second communication node of receiving be sent to the second communication system; Send mode can be to send to the second communication system through first communication system, or directly sends to the second communication system;
B, first communication system and second communication system communicate; The second communication system is not that the second communication node distributes and sends resource in a time period that consults with first communication system, and first communication system can be first communication node and distributes and receive resource in this time period.
Mode four:
A, confirm to receive after maybe possibly receive the second communication node that comes from the second communication system adjacent disturb frequently at first communication node; Can the parameter information of the second communication node of receiving be sent to the second communication system; Send mode can be to send to the second communication system through first communication system, or directly sends to the second communication system;
B, second communication notifications second communication node switch to first communication system.Certainly, before notice second communication node switched to first communication system, the second communication system also need carry out some necessary information interactions with first communication system, like the contextual information of second communication node, ability information etc.This interaction flow can no longer be given unnecessary details at this with reference to prior art.
Mode five:
A, confirm to receive after maybe possibly receive the second communication node that comes from the second communication system adjacent disturb frequently at first communication node; Obtain the information of second communication system; Initiate handoff request to first communication system then, request switches to the second communication system;
B, said first communication system are handled handoff request, indicate first communication node to switch in the second communication system.
Certainly, notifying before first communication node switches to the second communication system, first communication system also need be carried out some necessary information interactions with the second communication system, like the contextual information of first communication node, ability information etc.This interaction flow can no longer be given unnecessary details at this with reference to prior art.
In step 10; When comprising the information of the reference signal that the second communication node sends in the parameter information of second communication node; First communication node can detect the reference signal that the second communication node sends according to this information; Obtain the quality information of this reference signal then; And confirm according to this quality information whether this node receives maybe possibly receiving and come from the adjacent of second communication node and disturb frequently, promptly when the value of the quality information of this reference signal during, can confirm then that this node can receive maybe possibly receive the adjacent interference frequently that comes from the second communication node more than or equal to a preset mass value.Wherein, The second communication node can send above-mentioned reference signal on the frequency that first communication system is used; Or on the frequency that the second communication system uses, send above-mentioned reference signal, can also be on other frequency that first communication system and second communication system appoint the above-mentioned reference signal of transmission.
Present embodiment also provides a kind of inhibition system of adjacent frequency coexistence inter-system interference, is applied to comprise between two communication systems of different systems:
First communication node in first communication system is used for confirming to receive the adjacent interference frequently that maybe possibly receive the second communication node that comes from the second communication system;
Cooperation adjusting device in first communication system and the second communication system is used to realize the cooperation adjustment between first communication system and the second communication system, controls the adjacent interference frequently that said first communication node receives.
Further,
Said first communication node is used for parameter information according to the said second communication node that receives to be determined whether to receive maybe possibly receive and comes from the adjacent of said second communication node and disturb frequently;
Wherein, the information of said second communication node comprises: any one or combination in any under the information of the reference signal of the identification information of said second communication node, positional information, transmission, the strength information of reference signal and the said second communication node in the parameter information of communication system.
Further,
First communication node also is used for parameter information with the said second communication node of receiving and sends to said second communication system;
Cooperation adjusting device in said first communication system is used for communicating with the cooperation adjusting device of said second communication system, the cooperation adjusting device in said first communication system be said first communication node reception resource of distributing with said second communication system in the cooperation adjusting device be that the transmission resource of said second communication node distribution staggers on time domain each other.
Further,
Said first communication node also is used for parameter information with the said second communication node of receiving and sends to said second communication system;
Cooperation adjusting device in cooperation adjusting device in said first communication system and the said second communication system communicates, the cooperation adjusting device in said first communication system be said first communication node reception resource of distributing with said second communication system in the cooperation adjusting device be the transmission resource of said second communication node distribution on frequency domain apart bandwidth more than or equal to a preset bandwidth value.
Further,
Said first communication node is used for parameter information with the said second communication node of receiving and sends to said second communication system;
Cooperation adjusting device in cooperation adjusting device in said first communication system and the said second communication system communicates; Cooperation adjusting device in the said second communication system is used in the time period that the cooperation adjusting device with said first communication system consults, not sending resource for said second communication node distributes, and the cooperation adjusting device in said first communication system is used in this time period, receiving resource for said first communication node distributes.
Further,
Said first communication node is used for parameter information with the said second communication node of receiving and sends to said second communication system;
Cooperation adjusting device in the said second communication system is used to notify said second communication node to switch to said first communication system.
Further,
Said first communication node is used to obtain the information of said second communication system, initiates handoff request to said first communication system then, and request switches to said second communication system;
Cooperation adjusting device in said first communication system is used for said handoff request is handled, and indicates said first communication node to switch in the second communication system.
After adopting the present invention, can control adjacent interference frequently according to actual networking situation and user distribution between the adjacent frequency coexistence system, thereby improve the service quality and the spectrum utilization efficiency of system, improve the adaptability of wireless communication system significantly actual environment.
Further specify the flow process of Fig. 2 below in conjunction with applying examples 1～applying examples 7.It may be noted that applying examples 1～applying examples 7 mainly is described with the adjacent disturbance restraining method frequently of terminal to the terminal, said method be equally applicable to the terminal to base station, base station to terminal, base station adjacent Interference Control frequently to the base station, repeat no more at this.
Applying examples 1
As shown in Figure 3, when WiMAX system and FDD-LTE system adjacent frequency coexistence, terminal UE in the FDD-LTE system-1 confirms to receive the interference that maybe possibly receive from terminal MS-2 in the WiMAX system.
As shown in Figure 4, the disturbance restraining method between the adjacent frequency coexistence system may further comprise the steps:
1, the FDD-LTE system signaling that will comprise the UE-1 parameter information sends to the WiMAX system; Wherein, the parameter information of UE-1 comprises the reference signal information that UE-1 sends;
2, WiMAX system utilization control signaling is sent MS-2 with the parameter information of UE-1;
3, MS-2 judges whether to receive the adjacent interference frequently that maybe possibly receive from UE-1 according to the parameter information of the UE-1 that receives, and this process also is equivalent to judge that whether MS-2 itself is to maybe causing the neighbour to disturb frequently to UE-1;
If comprise the positional information of UE-1 in the parameter information; Then MS-2 can judge whether UE-1 possibly receive the interference of oneself according to the positional information of UE-1 and the distance size of own positional information; When even the distance between the two was smaller or equal to a predeterminable range, then MS-2 can confirm self can receive the adjacent interference frequently that maybe possibly receive UE-1;
If comprise the reference signal information that UE-1 sends in the parameter information, then MS-2 can judge whether UE-1 causes interference to oneself according to the reference signal of this information scanning UE-1 transmission.In scanning process; MS-2 can scan the reference signal that UE-1 sends on the frequency of oneself working; Or the reference signal that scanning UE-1 sends on the frequency of UE-1 work; Or after communicating through certain protocol (for example short-range communication protocols such as bluetooth) with UE-1, judge whether UE-1 possibly cause interference to oneself.
4, if judging to receive maybe possibly receiving from the adjacent of UE-1 disturbs frequently, then MS-2 can notify the WiMAX system, by the resource allocation conditions of WiMAX system through the serving BS BS-2 adjustment MS-2 of MS-2, with control MS-2 the adjacent of UE-1 is disturbed frequently.
Applying examples 2
As shown in Figure 3, when WiMAX system and FDD-LTE system adjacent frequency coexistence, terminal UE in the FDD-LTE system-1 possibly receive or receive the interference from terminal MS-2 in the WiMAX system.
As shown in Figure 5, the disturbance restraining method between the adjacent frequency coexistence system may further comprise the steps:
1, UE-1 confirms self to receive the interference that maybe possibly receive from terminal MS-2 in the WiMAX system according to the parameter information of the MS-2 that obtains; The visible last applying examples of judgment mode;
2, UE-1 sends to its serving BS NodeB-1 with the parameter information of above-mentioned MS-2, and the signaling that the FDD-LTE system under the NodeB-1 will comprise the MS-2 parameter information sends to the WiMAX system;
3, the WiMAX system disturbs the adjacent of UE-1 with control MS-2 through the resource allocation conditions of the serving BS BS-2 adjustment MS-2 of MS-2 frequently.
Applying examples 3
As shown in Figure 3, when WiMAX system and FDD-LTE system adjacent frequency coexistence, terminal UE in the FDD-LTE system-1 possibly receive or receive the interference from terminal MS-2 in the WiMAX system.
As shown in Figure 6, the disturbance restraining method between the adjacent frequency coexistence system may further comprise the steps:
1, UE-1 confirms self to receive the interference that maybe possibly receive from terminal MS-2 in the WiMAX system according to the parameter information of the MS-2 that obtains; The visible applying examples one of judgment mode;
2, UE-1 directly sends to WiMAX system (the for example serving BS BS-2 of MS-2) with the parameter information of the MS-2 that obtains through signaling; The WiMAX system disturbs the adjacent of UE-1 with control MS-2 through the resource allocation conditions of the serving BS BS-2 adjustment MS-2 of MS-2 frequently.
Applying examples 4
As shown in Figure 3, when WiMAX system and FDD-LTE system adjacent frequency coexistence, terminal UE in the FDD-LTE system-1 possibly receive or receive the interference from terminal MS-2 in the WiMAX system.
Disturbance restraining method between the adjacent frequency coexistence system comprises:
1, UE-1 confirms self to receive the interference that maybe possibly receive from terminal MS-2 in the WiMAX system according to the parameter information of the MS-2 that obtains; The visible applying examples one of judgment mode;
2, UE-1 sends to the FDD-LTE system with the parameter information of the MS-2 that obtains through signaling; 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 UE-1 reception resource of distributing and the serving BS BS-2 of MS-2 is that the transmission resource of its distribution staggers in time each other.
Current, WiMAX system and FDD-LTE system can consult concrete resource distribution mode.
Applying examples 5
As shown in Figure 3, when WiMAX system and FDD-LTE system adjacent frequency coexistence, terminal UE in the FDD-LTE system-1 possibly receive or receive the interference from terminal MS-2 in the WiMAX system.
Disturbance restraining method between the adjacent frequency coexistence system comprises:
1, UE-1 confirms self to receive the interference that maybe possibly receive from terminal MS-2 in the WiMAX system according to the parameter information of the MS-2 that obtains; The visible applying examples one of judgment mode;
2, UE-1 sends to the FDD-LTE system with the parameter information of the MS-2 that obtains through signaling; 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 UE-1 reception resource of distributing and the serving BS BS-2 of MS-2 is a synchronization for the transmission resource of its distribution in time, on the frequency at a distance of bandwidth greater than given threshold value T1, selection of threshold is big or small relevant with base station equipment attribute, terminal equipment attribute.
Applying examples 6
As shown in Figure 3, when WiMAX system and FDD-LTE system adjacent frequency coexistence, terminal UE in the FDD-LTE system-1 possibly receive or receive the interference from terminal MS-2 in the WiMAX system.
Disturbance restraining method between the adjacent frequency coexistence system comprises:
1, UE-1 confirms self to receive the interference that maybe possibly receive from terminal MS-2 in the WiMAX system according to the parameter information of the MS-2 that obtains; The visible applying examples one of judgment mode;
2, UE-1 obtains the parameter information of WiMAX system network element, and preferably, said parameter information is the parameter information of Node-2;
3, UE-1 initiatively initiates or switches in the WiMAX network according to the indication of own serving BS Node-1.
Applying examples 7
As shown in Figure 3, when WiMAX system and FDD-LTE system adjacent frequency coexistence, terminal UE in the FDD-LTE system-1 possibly receive or receive the interference from terminal MS-2 in the WiMAX system.
Disturbance restraining method between the adjacent frequency coexistence system comprises:
1, UE-1 confirms self to receive the interference that maybe possibly receive from terminal MS-2 in the WiMAX system according to the parameter information of the MS-2 that obtains; The visible applying examples one of judgment mode;
2, UE-1 sends to the WiMAX system with the parameter information of the MS-2 that obtains through signaling, and the WiMAX system switches in the FDD-LTE network through the serving BS BS-2 instruct MS-2 of MS-2.
As stated, the technical scheme by applying examples of the present invention provides to improve the service efficiency of frequency resource, improves the performance of entire wireless communication system through effective adjacent interference control method frequently.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1. the inhibition method of an adjacent frequency coexistence inter-system interference is applied to comprise between two communication systems of different systems:
First communication node in first communication system confirms to receive the adjacent interference frequently that maybe possibly receive the second communication node that comes from the second communication system;
The adjacent interference frequently that said first communication node receives is controlled in first communication system and the adjustment of second communication cooperative system.
2. the method for claim 1 is characterized in that:
The parameter information of the said second communication node that said first communication node basis receives determines whether to receive and maybe possibly receive the adjacent interference frequently that comes from said second communication node;
Wherein, the information of said second communication node comprises: any one or combination in any under the information of the reference signal of the identification information of said second communication node, positional information, transmission, the strength information of reference signal and the said second communication node in the parameter information of communication system.
3. method as claimed in claim 2 is characterized in that:
The adjacent interference frequently that said first communication node receives is controlled in said first communication system and the adjustment of second communication cooperative system, specifically comprises:
The parameter information of the said second communication node that first communication node will be received sends to said second communication system;
Said first communication system and said second communication system communicate, and said first communication system is said first communication node reception resource of distributing and said second communication system is that the transmission resource of said second communication node distribution staggers on time domain each other.
4. method as claimed in claim 2 is characterized in that:
The adjacent interference frequently that said first communication node receives is controlled in said first communication system and the adjustment of second communication cooperative system, specifically comprises:
The parameter information of the said second communication node that said first communication node will be received sends to said second communication system;
Said first communication system and said second communication system communicate, said first communication system be said first communication node reception resource of distributing with said second communication system be the transmission resource of said second communication node distribution on frequency domain apart bandwidth more than or equal to a preset bandwidth value.
5. method as claimed in claim 2 is characterized in that:
The adjacent interference frequently that said first communication node receives is controlled in said first communication system and the adjustment of second communication cooperative system, specifically comprises:
The parameter information of the said second communication node that said first communication node will be received sends to said second communication system;
Said first communication system and said second communication system communicate; Said second communication system does not send resource for said second communication node distributes in a time period that consults with said first communication system, said first communication system be that said first communication node distributes the reception resource in this time period.
6. method as claimed in claim 2 is characterized in that:
The adjacent interference frequently that said first communication node receives is controlled in said first communication system and the adjustment of second communication cooperative system, specifically comprises:
The parameter information of the said second communication node that said first communication node will be received sends to said second communication system;
The said second communication node of said second communication notifications switches to said first communication system.
7. method as claimed in claim 2 is characterized in that:
The adjacent interference frequently that said first communication node receives is controlled in said first communication system and the adjustment of second communication cooperative system, specifically comprises:
Said first communication node obtains the information of said second communication system, initiates handoff request to said first communication system then, and request switches to said second communication system;
Said first communication system is handled said handoff request, indicates said first communication node to switch in the second communication system.
8. like any described method in the claim 3 ~ 6, it is characterized in that,
The parameter information of the said second communication node that said first communication node will be received sends to said second communication system, specifically comprises;
The parameter information of the said second communication node that said first communication node will be received directly sends to said second communication system; Perhaps,
The parameter information of the said second communication node that said first communication node will be received sends to said first communication system, is transmitted to said second communication system by said first communication system.
9. the inhibition system of an adjacent frequency coexistence inter-system interference is applied to comprise between two communication systems of different systems:
First communication node in first communication system is used for confirming to receive the adjacent interference frequently that maybe possibly receive the second communication node that comes from the second communication system;
Cooperation adjusting device in first communication system and the second communication system is used to realize the cooperation adjustment between first communication system and the second communication system, controls the adjacent interference frequently that said first communication node receives.
10. inhibition as claimed in claim 9 system is characterized in that:
Said first communication node is used for parameter information according to the said second communication node that receives to be determined whether to receive maybe possibly receive and comes from the adjacent of said second communication node and disturb frequently;
Wherein, the information of said second communication node comprises: any one or combination in any under the information of the reference signal of the identification information of said second communication node, positional information, transmission, the strength information of reference signal and the said second communication node in the parameter information of communication system.
11. system as claimed in claim 10 is characterized in that:
First communication node also is used for parameter information with the said second communication node of receiving and sends to said second communication system;
Cooperation adjusting device in said first communication system is used for communicating with the cooperation adjusting device of said second communication system, the cooperation adjusting device in said first communication system be said first communication node reception resource of distributing with said second communication system in the cooperation adjusting device be that the transmission resource of said second communication node distribution staggers on time domain each other.
12. system as claimed in claim 10 is characterized in that:
Said first communication node also is used for parameter information with the said second communication node of receiving and sends to said second communication system;
Cooperation adjusting device in cooperation adjusting device in said first communication system and the said second communication system communicates, the cooperation adjusting device in said first communication system be said first communication node reception resource of distributing with said second communication system in the cooperation adjusting device be the transmission resource of said second communication node distribution on frequency domain apart bandwidth more than or equal to a preset bandwidth value.
13. system as claimed in claim 10 is characterized in that:
Said first communication node is used for parameter information with the said second communication node of receiving and sends to said second communication system;
Cooperation adjusting device in cooperation adjusting device in said first communication system and the said second communication system communicates; Cooperation adjusting device in the said second communication system is used in the time period that the cooperation adjusting device with said first communication system consults, not sending resource for said second communication node distributes, and the cooperation adjusting device in said first communication system is used in this time period, receiving resource for said first communication node distributes.
14. system as claimed in claim 10 is characterized in that:
Said first communication node is used for parameter information with the said second communication node of receiving and sends to said second communication system;
Cooperation adjusting device in the said second communication system is used to notify said second communication node to switch to said first communication system.
15. system as claimed in claim 10 is characterized in that:
Said first communication node is used to obtain the information of said second communication system, initiates handoff request to said first communication system then, and request switches to said second communication system;
Cooperation adjusting device in said first communication system is used for said handoff request is handled, and indicates said first communication node to switch in the second communication system.
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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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Also Published As
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| WO2012079349A1 (en) | 2012-06-21 |
| CN102547730B (en) | 2015-05-06 |
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