WO2012079349A1

WO2012079349A1 - Method and system for restraining interference between neighboring frequency coexistent systems

Info

Publication number: WO2012079349A1
Application number: PCT/CN2011/075655
Authority: WO
Inventors: 鲁照华; 刘锟; 罗薇; 李卫敏; 刘向宇
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-12-16
Filing date: 2011-06-13
Publication date: 2012-06-21
Also published as: CN102547730A; CN102547730B

Abstract

A method and system for restraining the interference between neighboring frequency coexistent systems are provided in the present invention, which can be applied between a first communication system and a second communication system with different standard, and the method comprises the following steps: a first communication node in the first communication system determines that it suffers or probably suffers neighboring frequency interference from a second communication node in the second communication system; and the first communication system performs the cooperation and adjustment with the second communication system to control the neighboring frequency interference which the first communication node suffers. The system comprises: the first communication node in the first communication system, which is configured to determine that it suffers or probably suffers the neighboring frequency interference from the second communication node in the second communication system; and a cooperation adjustment device in the first communication system and the cooperation adjustment device in the second communication system, which are configured to implement the cooperation and adjustment between the first communication system and the second communication system to control the neighboring frequency interference which the first communication node suffers. By using the present invention, the quality of service and the spectrum utilization efficiency of the system can be improved, and the adaptability of the wireless communication system for the real environment can be remarkably improved.

Description

Method and system for suppressing interference between adjacent frequency coexistence systems

Technical field

The present invention relates to a technique for suppressing interference between adjacent frequency coexistence systems, and more particularly to a method and system for suppressing interference between adjacent frequency coexisting systems.

Background technique

Interference in a communication system refers to all non-useful signals entering a channel or communication system. Inter-system interference refers to the interference caused by signals generated by other systems to the system. There are many types of interference between communication systems, including: adjacent frequency interference, spurious interference, intermodulation interference, and blocking interference. Among them, the adjacent frequency interference refers to the interference caused by the power of the interfering node when the frequency fl is used falls within the receiver passband of the signal receiving the frequency £2 adjacent to fl.

The causes of interference are also various, including: The original dedicated radio system occupies the existing frequency resources, the misconfiguration of different operators' networks, the setting of the transceiver itself, the electromagnetic compatibility problem, etc. These are all generated by the communication network. The cause of the interference.

With the allocation of spectrum resources in the market, there are more and more practical application scenarios of adjacent frequency coexistence systems. Figure 1 shows a WiMAX ( Worldwide Interoperability for Microwave Access) using adjacent frequencies. Schematic diagram of spectrum allocation when the system and FDD (Frequency Division Duplexing)-LTE (Long Term Evolution) system coexist. The analysis shows that when the WiMAX system is deployed in the TDD (Time Division Duplexing) band of 2570~2620MHz, the coexistence interference between the FDD-LTE system and the WiMAX system can be divided into the following four interference scenarios:

(a) UE (User Equipment) in the LTE system interferes with the BS (Base Station) in the WiMAX system;

(b) The UE in the LTE system interferes with the MS (Mobile Station) in the WiMAX system;

(c) a NodeB (Node B) in the LTE system interferes with the MS in the WiMAX system; (d) The NodeB in the LTE system interferes with the BS in the WiMAX system.

Assuming that the WiMAX system and the FDD-LTE system use the co-site networking mode, the adjacent LTE UEs and the WiMAX MSs may have very large interference between each other and the WiMAX BS and the LTE NodeB. Assuming that the WiMAX system and the FDD-LTE system use non-co-site or partial co-site networking, the adjacent LTE UEs and WiMAX MSs, LTE NodeBs and WiMAX MSs, LTE UEs and WiMAX BSs There may be very large disturbances between each other.

At present, adjacent channel interference is avoided only by adding a guard band, and valuable wireless communication resources are wasted. Summary of the invention

The technical problem to be solved by the present invention is to provide a method and system for suppressing interference between adjacent frequency coexistence systems to solve the problem of system performance degradation caused by adjacent frequency interference between adjacent frequency coexistence systems.

In order to solve the above problems, the present invention provides a method for suppressing interference between adjacent frequency coexistence systems, which is applied between a first communication system and a second communication system of different standards, including:

A first communication node in the first communication system determines to be or may be subject to adjacent channel interference from a second one of the second communication systems;

The first communication system cooperates with the second communication system to adjust for controlling adjacent channel interference that the first communication node is or may be subjected to.

Wherein: the step of the first communication node determining that it is subjected to or possibly subject to adjacent channel interference from the second communication node comprises: the first communication node determining according to the received parameter information of the second communication node Whether it is subject to or may be subject to adjacent frequency interference from the second communication node;

The parameter information of the second communication node includes: identifier information of the second communication node, location information, information of a transmitted reference signal, strength information of a reference signal, and the number of the second communication node Any one or any combination of parameter information of the two communication systems.

Wherein: the step of the first communication system being coordinated with the second communication system to control adjacent channel interference received or likely to be received by the first communication node comprises: The first communication node sends the received parameter information of the second communication node to the second communication system;

The first communication system is in communication with the second communication system, the first communication system is a receiving resource allocated by the first communication node and a transmission allocated by the second communication system to the second communication node Resources are staggered in time domain.

The step of: the first communication system and the second communication system cooperate to adjust, and control the adjacent communication node to receive or may be subjected to adjacent frequency interference includes:

The first communication node sends the received parameter information of the second communication node to the second communication system;

The first communication system is in communication with the second communication system, the first communication system is a receiving resource allocated by the first communication node and a transmission allocated by the second communication system to the second communication node The bandwidth of resources in the frequency domain is greater than or equal to a preset bandwidth value.

The first communication system is in communication with the second communication system, and the second communication system does not allocate a transmission resource to the second communication node for a period of time negotiated with the first communication system. The first communication system allocates a receiving resource to the first communication node during the time period.

The second communication system notifies the second communication node to switch to the first communication system. The step of: the first communication system and the second communication system cooperate to adjust, and control the adjacent communication node to receive or may be subjected to adjacent frequency interference includes:

The first communication node acquires information of the second communication system, and then initiates a handover request to the first communication system, requesting handover to the second communication system; The first communication system processes the handover request, instructing the first communication node to switch to the second communication system.

The step of the first communication node transmitting the received parameter information of the second communication node to the second communication system includes: receiving, by the first communication node, the second communication node Parameter information is directly sent to the second communication system; or

The first communication node transmits the received parameter information of the second communication node to the first communication system, and is forwarded by the first communication system to the second communication system.

The present invention also provides a system for suppressing interference between adjacent frequency coexistence systems, which is applied between a first communication system and a second communication system of different systems, and includes: a first communication node in the first communication system, and a first communication a cooperative adjustment device in the system and a cooperative adjustment device in the second communication system, wherein:

The first communication node is configured to: determine to be or may be subject to adjacent channel interference from a second one of the second communication systems;

The cooperative adjustment device in the first communication system and the cooperative adjustment device in the second communication system are configured to: implement cooperative adjustment between the first communication system and the second communication system, and control the first communication node to be controlled Or adjacent frequency interference that may be affected.

Wherein: the first communication node is configured to determine whether it is subjected to or may be subject to adjacent channel interference from the second communication node according to the following manner: determining whether to be received according to the received parameter information of the second communication node Or may be subject to adjacent channel interference from the second communication node, where the parameter information of the second communication node includes: identification information of the second communication node, location information, information of the transmitted reference signal, and reference Any one or any combination of the strength information of the signal and the parameter information of the communication system to which the second communication node belongs.

The first communication node is further configured to: send the received parameter information of the second communication node to the second communication system;

The cooperative adjustment device in the first communication system and the cooperative adjustment device in the second communication system are configured to implement cooperative adjustment between the first communication system and the second communication system in such a manner as to control the first communication node to be or Possible adjacent channel interference: cooperation in the first communication system The adjusting device communicates with the cooperative adjusting device in the second communication system, wherein the cooperative adjusting device in the first communication system adjusts the received resource allocated by the first communication node and the cooperative in the second communication system The transmission resources allocated by the device to the second communication node are mutually offset in the time domain.

The cooperative adjustment device in the first communication system and the cooperative adjustment device in the second communication system are configured to implement cooperative adjustment between the first communication system and the second communication system in such a manner as to control the first communication node to be or Adjacent frequency interference that may be received: the cooperative adjustment device in the first communication system communicates with the cooperative adjustment device in the second communication system, and the cooperative adjustment device in the first communication system is the first communication The bandwidth allocated by the node and the transmission resource allocated by the cooperation adjusting apparatus in the second communication system to the second communication node in the frequency domain is greater than or equal to a preset bandwidth value.

The cooperative adjustment device in the first communication system and the cooperative adjustment device in the second communication system are configured to implement cooperative adjustment between the first communication system and the second communication system in such a manner as to control the first communication node to be or Adjacent frequency interference that may be received: the cooperative adjustment device in the first communication system communicates with a cooperative adjustment device in the second communication system, and the cooperative adjustment device in the second communication system is in the first The cooperation adjustment device in the communication system does not allocate the transmission resource to the second communication node for a period of time negotiated, and the cooperation adjustment device in the first communication system is the first communication node in the time period. Allocate receiving resources.

The cooperative adjustment apparatus in the second communication system is further configured to: notify the second communication node to switch to the first communication system.

Wherein: the first communication node is further configured to: obtain information of the second communication system, and then initiate a handover request to the first communication system, requesting to switch to the second communication system; The cooperation adjustment apparatus in the first communication system is further configured to: process the handover request, instructing the first communication node to switch to the second communication system.

After the invention is used, the adjacent frequency coexistence system can control the adjacent frequency interference according to the actual networking situation and the user distribution, thereby improving the service quality and spectrum utilization efficiency of the system, and significantly improving the adaptability of the wireless communication system to the actual environment. BRIEF abstract

1 is a schematic diagram of frequency allocation when a WiMAX system using an adjacent frequency and an FDD-LTE system coexist in the prior art;

2 is a flowchart of interference suppression between adjacent frequency coexistence systems according to an embodiment of the present invention;

3 is a schematic diagram of interference between a WiMAX system and a FDD-LTE system coexisting terminal in the present invention;

4 is a flowchart of interference suppression of adjacent frequency coexistence between a WiMAX system and an FDD-LTE system in an application example 1 of the present invention;

5 is a flowchart of interference suppression of adjacent frequency coexistence between a WiMAX system and an FDD-LTE system in Application Example 2 of the present invention;

6 is a flowchart of interference suppression of adjacent frequency coexistence between a WiMAX system and an FDD-LTE system in an application example 3 of the present invention;

FIG. 7 is a flowchart of the adjacent frequency coexistence interference suppression of the WiMAX system and the FDD-LTE system in the application example 4 of the present invention.

Preferred embodiment of the invention

In this embodiment, the adjacent frequency coexistence system may be: GSM (Global System for Mobile Communications), CDMA (Code Division Multiple Access) 2000, and CDMA EV-DO (Evolution Data Only). Any data system evolution, WiMAX, LTE, WCDMA (Wideband Code Division Multiple Access), UMB (Ultra Mobile Broadband), IEEE (Institute of Electrical and Electronics Engineers) 802.11 Two or two Any combination of the above-described wireless communication systems.

In this embodiment, the method for suppressing the interference between the adjacent frequency coexistence systems is applied between two communication systems of different standards, and the communication systems of the two different systems are the first communication system and the second communication system, respectively. As shown in Figure 2, it includes:

Step 10: The first communication node in the first communication system determines that the adjacent communication interference from the second communication node in the second communication system is received or may be received; the interference mode may be as shown in FIG. 3.

The first communication node and the second communication node may be terminal devices in the communication system. The first communication node determines whether it is or may be subject to adjacent frequency interference from the second communication node based on the parameter information of the second communication node. The parameter information of the second communication node may include at least one of the following information: identification information of the second communication node, location information, information of the transmitted reference signal or parameter information of the associated communication system, ie, parameter information of the second communication system . The parameter information of the second communication system may be any information of the second communication system as long as the upper device of the first communication system can search for the second communication system based on the parameter information. In a specific implementation, the parameter information of the second communication node may be sent by the second communication node to the first communication node by using the second communication system, the first communication system, or the second communication node may be used by the first communication system. The sending to the first communication node may also be directly sent by the second communication node to the first communication node.

Step 20: The first communication system and/or the second communication system cooperate to adjust to control adjacent channel interference that the first communication node is or may be subjected to.

Here, it should be noted that all the cooperative adjustment methods mentioned below are methods for actively controlling adjacent frequency interference. These active control methods can eliminate the possibility of interference when no interference occurs, so it is possible to control the The adjacent frequency interference that the first communication node may be subjected to.

The first communication system and/or the second communication system cooperate to adjust, and the step of controlling the adjacent communication node to be subjected to or adjacent to the adjacent communication node may be implemented in the following manners:

method one:

After the first communication node determines that the first communication node is or may be subjected to adjacent channel interference from the second communication node in the second communication system, the received parameter information of the second communication node may be sent to the second communication system, and sent. The method may be sent to the second communication system by using the first communication system, or directly sent to the second communication system; B. The first communication system communicates with the second communication system, and the received resources allocated by the first communication system for the first communication node and the transmission resources allocated by the second communication system for the second communication node are staggered in time.

Method 2:

After the first communication node determines that the first communication node is or may be subjected to adjacent channel interference from the second communication node in the second communication system, the received parameter information of the second communication node may be sent to the second communication system, and sent. The method may be sent to the second communication system by using the first communication system, or directly sent to the second communication system;

B. The first communication system communicates with the second communication system, the receiving resource allocated by the first communication system for the first communication node and the transmission resource allocated by the second communication system for the second communication node occupy the same time in the time domain, The bandwidth in the frequency domain is greater than or equal to a preset bandwidth value.

Method three:

B. The first communication system communicates with the second communication system, and the second communication system does not allocate the transmission resource to the second communication node for a period of time negotiated with the first communication system, and the first communication system is in the time period The receiving resource can be allocated to the first communication node.

Method 4:

B. The second communication system notifies the second communication node to switch to the first communication system. Of course, before notifying the second communication node to switch to the first communication system, the second communication system also needs to perform some necessary information interaction with the first communication system, such as context information, capability information, etc. of the second communication node. This interaction process can refer to the prior art and will not be mentioned here. Method 5:

A. After the first communication node determines that it is subjected to or may be subjected to adjacent channel interference from the second communication node in the second communication system, acquires information of the second communication system, and then initiates a handover request to the first communication system to request handover. To the second communication system;

B. The first communication system processes the handover request, instructing the first communication node to switch to the second communication system.

Of course, before notifying the first communication node to switch to the second communication system, the first communication system also needs to perform some necessary information interaction with the second communication system, such as context information of the first communication node, capability information, and the like. This interaction process can refer to the prior art and will not be mentioned here.

In step 10, when the parameter information of the second communication node includes the information of the reference signal sent by the second communication node, the first communication node may detect the reference signal sent by the second communication node according to the information, and then acquire the reference signal. Quality information, and determining, according to the quality information, whether the node is or may be subject to adjacent channel interference from the second communication node, that is, when the value of the quality information of the reference signal is greater than or equal to a predetermined quality value, The node may or may be subject to adjacent channel interference from the second communication node. The second communication node may send the reference signal on the frequency used by the first communication system, or send the reference signal on the frequency used by the second communication system, and may also agree on the first communication system and the second communication system. The above reference signal is transmitted on other frequencies.

The embodiment further provides a system for suppressing interference between adjacent frequency coexistence systems, which is applied between two communication systems of different systems, including: a first communication node in the first communication system, and cooperation in the first communication system An adjustment device and a cooperative adjustment device in the second communication system, wherein:

The first communication node in the first communication system is configured to: determine to be or may be subject to adjacent frequency interference from a second communication node in the second communication system;

The cooperative adjustment device in the first communication system and the cooperative adjustment device in the second communication system jointly implement cooperative adjustment between the first communication system and the second communication system, and control the first communication node to be or Possible adjacent channel interference.

Wherein the first communication node is configured to determine whether it is or may be subject to To the adjacent channel interference from the second communication node: determining, according to the received parameter information of the second communication node, whether it is or may be subject to adjacent channel interference from the second communication node; The information about the second communication node includes: any one of the identification information of the second communication node, the location information, the information of the transmitted reference signal, the strength information of the reference signal, and the parameter information of the communication system to which the second communication node belongs. One or any combination.

The cooperative adjustment device in the first communication system is further configured to: communicate with a cooperative adjustment device in the second communication system. The transmission resource allocated by the cooperation adjustment apparatus in the first communication system to the first communication node and the transmission resource allocated by the cooperation adjustment apparatus in the second communication system to the second communication node are mutually in time domain Staggered.

The cooperation adjustment device in the first communication system is further configured to: communicate with the cooperation adjustment device in the second communication system. The transmission resource allocated by the cooperation adjustment apparatus in the first communication system to the first communication node is spaced apart from the transmission resource allocated by the cooperation adjustment apparatus in the second communication system for the second communication node in the frequency domain. The bandwidth is greater than or equal to a preset bandwidth value.

The cooperative adjustment device in the first communication system is further configured to: communicate with a cooperative adjustment device in the second communication system. The cooperation adjustment apparatus in the second communication system is further configured to: not allocate the transmission resource to the second communication node for a period of time negotiated with the cooperation adjustment apparatus in the first communication system, The cooperative adjustment device in a communication system is further configured to: allocate the receiving resource to the first communication node during the time period.

The cooperation adjustment apparatus in the second communication system is further configured to: notify the second communication node to switch to the first communication system. The first communication node is further configured to: acquire information of the second communication system, and then initiate a handover request to the first communication system, requesting to switch to the second communication system;

The cooperative adjustment apparatus in the first communication system is further configured to: process the handover request, instructing the first communication node to switch to the second communication system.

After the invention is used, the adjacent frequency coexistence system can control the adjacent frequency interference according to the actual networking situation and the user distribution, thereby improving the service quality and spectrum utilization efficiency of the system, and significantly improving the adaptability of the wireless communication system to the actual environment.

The flow of Fig. 2 will be further explained below with reference to Application Example 1 to Application Example 7. It should be noted that the application example 1 to the application example 7 mainly describe the adjacent channel interference suppression method of the terminal to the terminal, and the method is also applicable to the adjacent channel interference control of the terminal to the base station, the base station to the terminal, and the base station to the base station, where No longer.

Application example 1

As shown in Figure 3, when the WiMAX system coexists with the FDD-LTE system, the UE-1 in the FDD-LTE system determines that it is subject to or may be interfered by the terminal MS-2 from the WiMAX system.

As shown in FIG. 4, the interference suppression method between adjacent frequency coexistence systems includes the following steps:

The FDD-LTE system sends the signaling including the UE-1 parameter information to the WiMAX system; wherein the parameter information of the UE-1 includes the reference signal information sent by the UE-1;

2. The WiMAX system sends the parameter information of the UE-1 to the MS-2 by using control signaling;

3. The MS-2 determines, according to the received parameter information of the UE-1, whether it is subjected to or may be interfered by the adjacent channel from the UE-1, and the process is also equivalent to determining whether the MS-2 itself is or may be adjacent to the UE-1. Frequency interference

If the parameter information includes the location information of the UE-1, the MS-2 may determine, according to the distance between the location information of the UE-1 and the location information of the UE-1, whether the UE-1 may be interfered by itself, that is, if the distance between the two is When it is less than or equal to a preset distance, MS-2 will determine that it will receive or may be subject to UE-1's adjacent frequency.

If the parameter information includes the reference signal information sent by the UE-1, the MS-2 may scan the reference signal sent by the UE-1 according to the information to determine whether the UE-1 interferes with itself. During the scanning process, the MS-2 can scan the reference signal sent by UE-1 on the frequency of its own work, or work at UE-1. The frequency is scanned on the reference signal transmitted by the UE-1, or after the UE-1 communicates through a specific protocol (for example, a short-range communication protocol such as Bluetooth), it is judged whether the UE-1 may cause interference to itself.

4. If it is determined that the adjacent channel interference from UE-1 is received or may be received, the MS-2 notifies the WiMAX system that the WiMAX system adjusts the resource allocation of the MS-2 through the serving base station BS-2 of the MS-2, Control MS-2's adjacent channel interference to UE-1.

Application example 2

As shown in Figure 3, when the WiMAX system coexists with the FDD-LTE system, the terminal UE-1 in the FDD-LTE system may be affected by or interfere with the terminal MS-2 from the WiMAX system.

As shown in FIG. 5, the interference suppression method between adjacent frequency coexistence systems includes the following steps:

1. UE-1 determines that it is subject to or may be interfered by the terminal MS-2 from the WiMAX system according to the obtained parameter information of the MS-2; the judgment mode can be seen in the previous application example;

2. The UE-1 sends the parameter information of the MS-2 to the serving base station NodeB-1, and the FDD-LTE system to which the NodeB-1 belongs sends the signaling including the MS-2 parameter information to the WiMAX system;

3. The WiMAX system adjusts the resource allocation of the MS-2 through the serving base station BS-2 of the MS-2 to control the neighboring frequency of the MS-2 to the UE-1.

Application example 3

As shown in FIG. 6, the interference suppression method between adjacent frequency coexistence systems includes the following steps:

1. UE-1 determines that it is subject to or may be interfered by the terminal MS-2 from the WiMAX system according to the obtained parameter information of the MS-2;

2. The parameter information of the MS-2 obtained by the UE-1 is directly sent to the WiMAX system (for example, the serving base station BS-2 of the MS-2) by signaling, and the WiMAX system adjusts the MS by the serving base station BS-2 of the MS-2. The resource allocation of 2 to control the adjacent channel interference of MS-2 to UE-1. Application example 4

Interference suppression methods between adjacent frequency coexistence systems, including:

1. UE-1 determines, according to the obtained parameter information of MS-2, that it is or may be subject to

The interference of the terminal MS-2 in the WiMAX system; the judgment mode can be seen in the application example 1;

2. The parameter information of the MS-2 obtained by the UE-1 is sent to the FDD-LTE system through signaling, and the WiMAX system interacts with the FDD-LTE system through signaling, and uses the default interference coordination mode, as shown in FIG. The receiving resources allocated by the serving base station Node-1 of the UE-1 for the UE-1 and the transmission resources allocated by the serving base station BS-2 of the MS-2 are mutually shifted in time.

Currently, WiMAX systems and FDD-LTE systems can negotiate specific resource allocation methods.

Application example 5

2. The parameter information of the MS-2 obtained by the UE-1 is sent to the FDD-LTE system through signaling, and the WiMAX system interacts with the FDD-LTE system through signaling, and uses the default interference coordination mode, the service of the UE-1. The receiving resource allocated by the base station Node-1 for the UE-1 and the transmission resource allocated by the serving base station BS-2 of the MS-2 are at the same time in time, and the bandwidth at the frequency is greater than the given threshold T1, the threshold value. The selection size is related to the base station device attributes and terminal device attributes.

Application example 6

As shown in FIG. 3, when the WiMAX system coexists with the FDD-LTE system, the terminal UE-1 in the FDD-LTE system may be affected by or interfere with the terminal MS-2 from the WiMAX system. Interference suppression methods between adjacent frequency coexistence systems, including:

2. The UE-1 obtains parameter information of the network element of the WiMAX system. Preferably, the parameter information is parameter information of the Node-2.

3. UE-1 initiates or switches to the WiMAX network according to the instructions of its own serving base station Node-1.

Application example 7

2. The parameter information of the MS-2 obtained by UE-1 is sent to the WiMAX system through signaling.

The WiMAX system instructs the MS-2 to switch to the FDD-LTE network through the serving base station BS-2 of the MS-2.

As described above, with the technical solution provided by the application example of the present invention, the efficiency of the frequency resource is improved by the effective adjacent channel interference control method, and the performance of the entire wireless communication system is improved.

One of ordinary skill in the art will appreciate that all or a portion of the above steps may be performed by a program to instruct the associated hardware, such as a read only memory, a magnetic disk, or an optical disk. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the above embodiment may be implemented in the form of hardware or in the form of a software function module. The invention is not limited to any specific form of combination of hardware and software.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Where in the spirit of the present invention Within the principles, any modifications, equivalent substitutions, improvements, etc., are intended to be included within the scope of the present invention.

Industrial applicability

After the invention is used, the adjacent frequency coexistence system can control the adjacent frequency interference according to the actual networking situation and the user distribution, thereby improving the service quality and spectrum utilization efficiency of the system, and significantly improving the adaptability of the wireless communication system to the actual environment. Has a strong industrial applicability.

Claims

Claim

A method for suppressing interference between adjacent frequency coexistence systems, which is applied between a first communication system and a second communication system of different standards, including:

2. The suppression method according to claim 1, wherein: the step of the first communication node determining that it is subjected to or possibly subject to adjacent channel interference from the second communication node comprises: the first communication node receiving Parameter information of the second communication node to determine whether it is or may be subject to adjacent frequency interference from the second communication node;

3. The suppression method according to claim 2, wherein: the step of the first communication system cooperating with the second communication system to control adjacent channel interference received or likely to be received by the first communication node comprises:

4. The suppression method according to claim 2, wherein: the step of the first communication system cooperating with the second communication system to control adjacent channel interference received or likely to be received by the first communication node comprises:

The first communication system communicates with the second communication system, and the first communication system is The bandwidth allocated by the first communication node and the transmission resource allocated by the second communication node to the second communication node in the frequency domain is greater than or equal to a preset bandwidth value.

5. The suppression method according to claim 2, wherein: the step of the first communication system cooperating with the second communication system to control adjacent channel interference received or likely to be received by the first communication node comprises:

6. The suppression method according to claim 2, wherein: the step of the first communication system cooperating with the second communication system to control adjacent channel interference received or likely to be received by the first communication node comprises:

The second communication system notifies the second communication node to switch to the first communication system.

7. The suppression method according to claim 2, wherein: the step of the first communication system cooperating with the second communication system to control adjacent channel interference received or likely to be received by the first communication node comprises:

The first communication node acquires information of the second communication system, and then initiates a handover request to the first communication system, requesting handover to the second communication system;

The first communication system processes the handover request to instruct the first communication node to switch to the second communication system.

The suppression method according to any one of claims 3 to 6, wherein the step of the first communication node transmitting the received parameter information of the second communication node to the second communication system includes :

The first communication node directly sends the received parameter information of the second communication node to the second communication system; or The first communication node sends the received parameter information of the second communication node to the first communication system, and is forwarded by the first communication system to the second communication system.

A system for suppressing interference between adjacent frequency coexistence systems, which is applied between a first communication system and a second communication system of different systems, including: a first communication node in the first communication system, and a first communication system a cooperative adjustment device and a cooperative adjustment device in the second communication system, wherein:

10. The suppression system of claim 9, wherein: said first communication node is configured to determine whether to be or may be subject to adjacent frequency interference from said second communication node in accordance with: Determining parameter information of the second communication node to determine whether it is or may be subject to adjacent frequency interference from the second communication node;

The parameter information of the second communication node includes: identifier information of the second communication node, location information, information of the transmitted reference signal, strength information of the reference signal, and parameters of the communication system to which the second communication node belongs. Any one or any combination of the information.

11. The suppression system of claim 10, wherein:

The cooperative adjustment device in the first communication system and the cooperative adjustment device in the second communication system are configured to implement cooperative adjustment between the first communication system and the second communication system in such a manner as to control the first communication node to be or Adjacent frequency interference that may be received: the cooperative adjustment device in the first communication system communicates with the cooperative adjustment device in the second communication system, and the cooperative adjustment device in the first communication system is the first communication The received resources allocated by the node and the transmission resources allocated by the cooperation adjusting apparatus in the second communication system to the second communication node are mutually offset in the time domain.

12. The suppression system of claim 10, wherein:

The first communication node is further configured to: send the received parameter information of the second communication node Sent to the second communication system;

13. The suppression system of claim 10, wherein:

14. The suppression system of claim 10, wherein:

15. The suppression system of claim 10, wherein:

The first communication node is further configured to: acquire information of the second communication system, and then initiate a handover request to the first communication system to request to switch to the second communication system;