CN110971380A - Remote interference management method and network side equipment - Google Patents
Remote interference management method and network side equipment Download PDFInfo
- Publication number
- CN110971380A CN110971380A CN201811333441.8A CN201811333441A CN110971380A CN 110971380 A CN110971380 A CN 110971380A CN 201811333441 A CN201811333441 A CN 201811333441A CN 110971380 A CN110971380 A CN 110971380A
- Authority
- CN
- China
- Prior art keywords
- reference signal
- party
- interference
- remote interference
- interfered
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/345—Interference values
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a remote interference management method and network side equipment, wherein the method comprises the following steps: the method comprises the steps that an interfered party is confirmed to be subjected to remote interference, a first reference signal is transmitted, and reference signal monitoring is started; monitoring a second reference signal sent by an interference party, determining that the interference party has remote interference, and stopping transmitting the first reference signal; monitoring the second reference signal cancellation, determining remote interference cancellation of the interferer, and sending an indication to the interferer through a backhaul link, the indication being used to cause the interferer to stop sending the second reference signal. The invention can reduce the interaction of the reference signals on the premise of using the double reference signals, thereby reducing the expenditure of system resources.
Description
This application claims priority from a chinese patent application filed by the chinese patent office on 28/9/2018 under application number 201811141588.7 entitled "a remote interference management method," the entire contents of which are incorporated herein by reference.
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a remote interference management method and a network side device.
Background
Under certain weather conditions, electromagnetic waves propagating in the atmosphere, and in particular in the troposphere, are affected by atmospheric refraction, and their propagation trajectory will bend to the ground. Wherein part of the electromagnetic wave is trapped in a thin atmosphere with a certain thickness, and propagates in a similar way to the electromagnetic wave in a metal waveguide. This phenomenon is known as the propagation of electromagnetic waves through atmospheric waveguides (also known as tropospheric waveguides).
The atmospheric waveguiding phenomenon causes signals transmitted by the 5G base station gNB to propagate hundreds of kilometers away with little path loss, thereby causing interference to the remote gNB.
In TD-LTE (Time Division Long Term Evolution), due to the existence of the atmospheric waveguide phenomenon, a wireless signal of a synchronous remote 4G base station eNB having the same TDD (Time Division duplex) configuration may cause non-negligible interference, i.e., remote interference, to a local eNB.
Despite many differences between 5G NR (New Radio) and TD-LTE, most deployments of NR are also in TDD mode, and hence NR still faces the problem of remote interference.
In particular, in the presence of the atmospheric waveguiding phenomenon, downlink signals of an interfering gnb (aggressor) may propagate over long distances and interfere with uplink signals of an interfered gnb (victim) far away therefrom. And the farther the agressor is away from the Victim, the larger the time delay is, and the more symbols are interfered on the uplink of the Victim.
Since the generation of remote Interference comes from the accumulation of multiple remote gNB Interference at different distances, the IoT (Interference over Thermal Noise) in Victim can exhibit a "tilt" characteristic, symbols closer to the guard interval can be subject to accumulated Interference caused by more aggresors, and the Interference power caused by closer aggresors is larger, which results in the "tilt" characteristic of IoT in the time domain.
At present, according to the symmetry rule, the remote interference scene can be mainly summarized into a symmetric interference scene and an asymmetric interference scene.
The symmetric interference scenario mainly refers to the phenomenon of atmospheric waveguide, in which IoT is symmetrically increased at two gnbs causing remote interference with each other, and this situation is often caused by the network topology of the system, and is relatively easy to occur point-to-point or cluster-to-cluster with the same density.
While asymmetric interference mainly refers to the asymmetric increase of IoT at two gnbs causing remote interference with each other if atmospheric waveguiding phenomenon occurs, which occurs because some gnbs suffer more remote interference caused by gnbs due to a specific network topology or different density of gnbs in different areas.
Disclosure of Invention
The invention provides a remote interference management method and network side equipment, which can reduce the steps of interaction of reference signals on the premise of using double reference signals, thereby reducing the expenditure of wireless system resources.
In a first aspect, the present invention provides a remote interference management method, including:
the method comprises the steps that an interfered party is confirmed to be subjected to remote interference, a first reference signal is transmitted, and reference signal monitoring is started;
monitoring a second reference signal sent by an interference party, determining that the interference party has remote interference, and stopping transmitting the first reference signal;
monitoring the second reference signal cancellation, determining remote interference cancellation of the interferer, and sending an indication to the interferer through a backhaul link, the indication being used to cause the interferer to stop sending the second reference signal.
In a second aspect, the present invention provides a method for remote interference management, including:
the interference party starts reference signal monitoring;
receiving a first reference signal sent by an interfered party, determining that remote interference to the interfered party exists, and transmitting a second reference signal;
and when receiving an interference elimination instruction sent by the interfered party through a backhaul link, determining remote interference elimination and stopping transmitting the second reference signal.
In a third aspect, the present invention provides a network side device, which includes a processor and a memory, where the memory stores program codes, and when the program codes are executed by the processor, the processor is caused to execute the steps of the remote interference management method provided in the first aspect.
In a fourth aspect, the present invention provides a network side device, which includes a processor and a memory, where the memory stores program codes, and when the program codes are executed by the processor, the processor is caused to execute the steps of the remote interference management method provided in the second aspect.
By utilizing the remote interference management method and the network side equipment of the embodiment of the invention, the following beneficial effects are achieved:
the remote interference management method provided by the invention is different from the remote management method provided by the prior art, and can reduce the interaction of the reference signals on the premise of using double reference signals, thereby reducing the expenditure of system resources.
Drawings
Fig. 1 is a block diagram of a remote interference management system according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating an interaction between an interfered party and an interfering party when a backhaul link exists according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating an interaction between an interfered party and an interfering party when a backhaul link does not exist according to an embodiment of the present invention;
fig. 4 is a first network-side device structure diagram according to an embodiment of the present invention;
fig. 5 is a diagram of a second network-side device structure according to an embodiment of the present invention;
fig. 6 is a flowchart of a method for remote interference management of an interfered party according to an embodiment of the present invention;
fig. 7 is a flowchart of a method for performing remote interference management by an interferer according to an embodiment of the present invention.
Detailed Description
The remote interference management method provided by the embodiment of the invention is applied to network side equipment, and the network side equipment can realize remote interference management under the conditions of saving signaling interaction and system resources through signaling interaction.
The network side device may be a mobile communication base station, and is a device for providing a wireless communication function for a terminal, including but not limited to: gNB in 5G, eNB in TD-LTE system, etc. The base station in the present application may also be a device that provides a terminal with a wireless communication function in other communication systems that may appear in the future.
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
An embodiment of the present invention provides a remote interference management system, as shown in fig. 1, the system includes:
the interfered party is used for determining the remote interference, transmitting a first reference signal RS-1 and starting reference signal monitoring; monitoring a second reference signal RS-2 sent by an interference party, determining that the interference party has remote interference, and stopping transmitting the first reference signal RS-1; monitoring the elimination of the second reference signal RS-2, determining the remote interference elimination of the interference party, and sending an instruction to the interference party through a backhaul link, wherein the instruction is used for enabling the interference party to stop sending the second reference signal RS-2;
an interferer for initiating reference signal monitoring; when receiving a first reference signal RS-1 sent by an interfered party, determining that remote interference to the interfered party exists, and transmitting a second reference signal RS-2; and when receiving an interference elimination instruction sent by the interfered party through the backhaul link, determining remote interference elimination and stopping transmitting the second reference signal RS-2.
The interfered party and the interfering party may adopt a network side device of the same wireless network, the network side device may be a mobile communication base station, and the wireless network may be a 5G network or a TD-LTE network.
The backhaul link is a channel connected between the interfering party and the interfered party through a physical channel, and the physical channel may be a fiber connection channel or the like.
According to the remote interference management system provided by the embodiment of the invention, when the interfered party determines that the interference exists, the transmission of the first reference signal is stopped, and when the interfering party determines that the remote interference exists, the transmission of the second reference signal is stopped, so that the signaling interaction is reduced, the system resource overhead is saved, and meanwhile, when the interference elimination is determined, the interfered party sends the interference elimination indication to the interfering party through the backhaul link.
In implementation, an interfered party discovers remote interference by using interference thermal noise IoT, when the IoT exceeds a certain threshold value, the remote interference is determined to be generated, reference signal monitoring is started, a second reference signal RS-2 is adopted to monitor an interfering party, the interfered party sends a reference signal RS-1, and the interfering party can receive the reference signal RS-1 and is regarded as the interfering party.
In implementation, the reference signal monitoring performed by the interferer in this embodiment is to initiate the first reference signal RS-1 monitoring according to the system automatic management OAM configuration or due to the remote interference.
Further, the interfering party receives the first reference signal RS-1 from the interfered party, and stops the monitoring of the first reference signal RS-1 when determining that the backhaul link exists.
After receiving the RS-1, the interference party determines that the second reference signal RS-2 is transmitted back before the interference is eliminated to assist in monitoring the disappearance of the remote interference.
Optionally, when the interfered party determines that the second reference signal RS-2 is not monitored beyond the set time period, it determines that the second reference signal RS-2 is monitored to be eliminated.
In the initial state of the invention, the dual reference signals are used for accurately detecting whether the remote interference exists, so that the accuracy and the reliability of the detection result are improved.
Optionally, when one of the interfering party and the interfered party in the remote interference management system monitors remote interference, remote interference suppression is performed by adjusting local transmission resources. Or, when the remote interference is monitored, the remote interference suppression is performed by adjusting local transmission resources.
As an optional implementation manner, the interfered/interfering party performs remote interference suppression by adjusting a local transmission resource, where the interfered transmission resource may be an uplink resource or a downlink resource.
When the interfered party adjusts the local uplink resource, some uplink resource symbol transmission may be abandoned, and/or the power of the uplink resource symbol of the interfered party may be increased.
When the interfering party adjusts the local downlink resource, some downlink resource symbol transmission may be discarded and/or the power of the uplink resource symbol of the interfered party may be reduced.
Remote interference is often a temporary phenomenon, although it may last for several hours. Therefore, when the interfered party determines the remote interference elimination of the interfering party, the interfered party notifies the interfering party of the disappearance of the interference through the backhaul link, and then the interfered party restores the original transmission resource configuration by adjusting the local transmission resource.
Optionally, when the interferer determines to cancel the remote interference, the original transmission resource configuration is restored by adjusting the local transmission resources.
By utilizing the remote interference management system provided by the embodiment of the invention, the backhaul link is adopted to inform the interference party to stop the transmission of the second reference signal RS-2, so that the interference party recovers the original transmission resource configuration, and the transmission efficiency and accuracy are improved; .
In the following, taking the case that both the interfered party and the interfering party in the remote interference management system are the gNB, an interaction procedure between the interfering party and the interfered party in the remote interference management system of the present invention is given, as shown in fig. 2, which mainly includes the following steps:
step 0, the interfering side gnb (aggregator) generates remote interference to the interfered gnb (victim).
In the case of an atmospheric waveguide, the downlink signal of the interfering side gnb (aggressor) may propagate over long distances and interfere with the uplink signal of the interfered side gnb (victim) far away from it.
Step 1, the interfered party gNB detects remote interference and starts reference signal monitoring, and transmits a first reference signal RS-1 to the interfering party gNB.
The interfered party gNB uses the interference thermal noise IoT to find the remote interference, and when the IoT exceeds a certain threshold value, the remote interference is determined to be generated.
The specific way in which the victim gbb discovers the remote interference using the interfering thermal noise IoT may be in an existing way and will not be described in detail here.
And step 2, the interference party gNB is configured or determined by the OAM to be subjected to remote interference and starts reference signal monitoring.
Unlike the interfered party gNB side directly triggered by the remote interference to trigger the reference signal monitoring, the triggering condition of the reference signal monitoring mechanism of the interfering party includes the remote interference triggering and OAM configuration triggering.
When remote interference triggering is adopted, an interference side gNB uses interference thermal noise IoT to find remote interference, and when the IoT exceeds a certain threshold value, the remote interference is determined to be generated.
And step 3, after monitoring the RS-1, the interference party gNB sends an RS-2 to inform the interfered party gNB that the remote interference still exists.
And step 4, after receiving the RS-2 sent by the interference party gNB, the interfered party gNB adjusts the local uplink resource to perform remote interference suppression, and stops transmitting the first reference signal RS-1.
In this embodiment, a backhaul link exists between the interfered party gNB and the interfering party gNB, and after the interfered party gNB receives the RS-2, the interfered party gNB stops sending the RS-1, and the interfering party gNB stops reference signal detection, but the interfering party gNB defaults to the existence of remote interference;
and step 5, when the interfered party gNB cannot monitor the RS-2 from the interfering party gNB, determining remote interference elimination, recovering the original configuration of the interfered party gNB, and sending RS-2 disappearance indication information to the interfering party gNB through a backhaul link.
And step 6, the interference party gNB receives the RS-2 disappearance indication information through the backhaul link, determines remote interference elimination, stops RS-2 transmission and restores the original configuration by adjusting downlink resource configuration.
Example 2
The present embodiment provides a remote interference management system, which is different from embodiment 1 in that:
the interfered party is further used for monitoring a second reference signal RS-2 sent by the interfering party and continuously transmitting a first reference signal RS-1 when the fact that a backhaul link does not exist is determined; and when the remote interference elimination of the interference party is determined, stopping transmitting the first reference signal RS-1.
The interferer is further configured to maintain reference signal monitoring when it is determined that the backhaul link is not present; and when the first reference signal RS-1 is monitored to be eliminated, determining remote interference elimination.
In this embodiment, in the absence of the backhaul link, the interfered party continues to transmit the RS-1 before determining that the interference disappears, and the interfering party continues to transmit the RS-2 before determining that the interference is eliminated, so as to ensure normal operation of the system in the absence of the backhaul link in the remote interference management scheme.
In the following, taking the case that both the interfered party and the interfering party in the remote interference management system are the gNB, an interaction flow between the interfering party and the interfered party in the remote interference management system of the present invention is given, as shown in fig. 3, which mainly includes the following steps:
step 1, the interfered party gNB detects remote interference and starts reference signal monitoring, and meanwhile, the first reference signal RS-1 is continuously transmitted to the interfering party gNB.
The interfered party gNB uses the interference thermal noise IoT to find the remote interference, and when the IoT exceeds a certain threshold value, the remote interference is determined to be generated.
The specific way in which the victim gbb discovers the remote interference using the interfering thermal noise IoT may be in an existing way and will not be described in detail here.
And step 2, the interference party gNB is configured or determined by the OAM to be subjected to remote interference and starts reference signal monitoring.
Unlike the interfered party gNB side directly triggered by the remote interference to trigger the reference signal monitoring, the triggering condition of the reference signal monitoring mechanism of the interfering party includes the remote interference triggering and OAM configuration triggering.
When remote interference triggering is adopted, an interference side gNB uses interference thermal noise IoT to find remote interference, and when the IoT exceeds a certain threshold value, the remote interference is determined to be generated.
And step 3, after monitoring the RS-1, the interference party gNB sends an RS-2 to inform the interfered party gNB that the remote interference still exists.
Step 4, after receiving the RS-2 sent by the interference party gNB, the interfered party gNB adjusts the local uplink resource to perform remote interference suppression;
and step 5, when the interfered party gNB cannot detect the RS-1 from the interfering party gNB, restoring the original configuration of the interfered party gNB and stopping transmitting the RS-2.
The original configuration includes original uplink transmission resource configuration, whether to continue reference signal monitoring, and the like.
And 6, when the interference party gNB cannot detect the RS-2 from the interfered party gNB, restoring the original configuration.
The original configuration includes whether to continue reference signal monitoring or not.
The embodiment can ensure normal remote interference management and suppression even if the backhaul link does not exist.
Example 3
The present embodiment provides a remote interference management system, which provides specific implementation manners of a first reference signal RS-1 used by an interfered party and a second reference signal RS-2 used by an interfering party on the basis of embodiment 1 or embodiment 2.
The second reference signal RS-2 has the same sequence as the first reference signal RS-1.
When RS-1 and RS-2 are designed to have the same sequence, the effects of RS-1 and RS-2 are also the same.
The possible modes are as follows: the sequence of the first reference signal RS-1 is used for the interfering party to determine that the interfered party is remotely interfered and for the interfering party to determine resource information that the interfered party is remotely interfered, and the sequence of the second reference signal RS-2 is used for the interfered party to determine that the interfered party is remotely interfered and for the interfered party to determine resource information that the interfered party is remotely interfered.
Optionally, the remote interference may be uplink resource remote interference or downlink resource remote interference.
Optionally, the resource information may be uplink resource information or downlink resource information.
Optionally, the resource information may include, but is not limited to, resource location information, resource quantity information, and the like.
Specifically, the sequence of the first reference signal RS-1 is used for the interfering party to determine that the interfered party causes remote interference to the interfered party and the interfered party determines the number and/or position of uplink resource symbols causing remote interference to the interfered party, and the sequence of the second reference signal RS-2 is used for the interfered party to determine that the interfered party is subjected to remote interference and the interfered party determines the number/position of uplink resource symbols subjected to remote interference.
Further, the sequences of the second reference signal RS-2 and the first reference signal RS-1 are both pseudo-random sequences.
The length of the pseudo-random sequence may be, but is not limited to, a Gold sequence having a length of 31, and any sequence length may be used as long as it can satisfy the signal requirement.
The RS-1 and the RS-2 share the same signal generation scheme, so that the universality of the reference signal is improved, and the complexity of the system is reduced.
As another optional implementation, the sequence of the first reference signal RS-1 is used for the interfering party to determine that the interfered party is remotely interfered, and the sequence of the second reference signal RS-2 is used for the interfering party to determine that the interfered party is remotely interfered.
The remote interference may be uplink resource remote interference or downlink resource remote interference.
Optionally, the sequence of the first reference signal RS-1 is used for the interfering party to determine that the remote interference is caused to the uplink resource of the interfered party, and the sequence of the second reference signal RS-2 is used for the interfered party to determine that the remote interference is caused to the uplink resource.
Optionally, the sequences of the second reference signal RS-2 and the first reference signal RS-1 are both multipath delay spread resistant sequences.
Further, the multipath delay spread resistant sequence may be, but is not limited to, a ZC (Zadoff-chu) sequence.
Example 4
The present embodiment provides a remote interference management system, which provides specific implementation manners of a first reference signal RS-1 used by an interfered party and a second reference signal RS-2 used by an interfering party on the basis of embodiment 1 or embodiment 2.
In this embodiment, the sequences of the second reference signal RS-2 and the first reference signal RS-1 are different.
When RS-1 and RS-2 are designed into different sequences, the effects of RS-1 and RS-2 are different.
The possible modes are as follows: the sequence of the first reference signal RS-1 is used for the interferer to determine that remote interference is caused to the interfered party and for the interferer to determine resource information that causes remote interference to the interfered party, and the sequence of the second reference signal RS-2 is used for the interfered party to determine that remote interference is caused to the interfered party.
Optionally, the remote interference may be uplink resource remote interference or downlink resource remote interference.
Optionally, the resource information may be uplink resource information or downlink resource information.
Optionally, the resource information may include, but is not limited to, resource location information, resource quantity information, and the like.
Specifically, the sequence of the first reference signal RS-1 is used for the interfering party to determine that the remote interference is caused to the interfered party and the interfering party determines the number/position of uplink resource symbols causing the remote interference to the interfered party, and the sequence of the second reference signal RS-2 is used for the interfered party to determine that the remote interference is caused to the interfered party.
Furthermore, the first reference signal RS-1 is an anti-multipath delay spread sequence, and the second reference signal RS-2 is a pseudo-random sequence.
Or, the first reference signal RS-1 is a pseudo-random sequence, and the second reference signal RS-2 is an anti-multipath delay spread sequence.
Further, the anti-multipath delay spread sequence may be, but is not limited to, a ZC (Zadoff-chu) sequence, and the length of the pseudo-random sequence may be, but is not limited to, a Gold sequence having a length of 31, as long as the sequence length can satisfy the signal requirement.
The RS-1 and the RS-2 adopt different signal generation schemes, so that the flexibility of reference signal design is improved, and the complexity of the system is reduced.
Example 5
The present embodiment provides a network side device, which is an interfered party, and includes a processor and a memory, where the memory stores program codes, and when the program codes are executed by the processor, the processor is caused to execute the following steps:
the method comprises the steps that an interfered party is confirmed to be subjected to remote interference, a first reference signal is transmitted, and reference signal monitoring is started;
monitoring a second reference signal sent by an interference party, determining that the interference party has remote interference, and stopping transmitting the first reference signal;
monitoring the second reference signal cancellation, determining remote interference cancellation of the interferer, and sending an indication to the interferer through a backhaul link, the indication being used to cause the interferer to stop sending the second reference signal.
Optionally, the processor determines that remote interference is experienced, and includes:
and when the interference thermal noise of the data transmission is determined to exceed the set threshold value, determining that the data transmission is subjected to remote interference.
Optionally, the monitoring, by the processor, that the second reference signal is canceled includes:
and the second reference signal is not monitored beyond a set time length.
Optionally, the processor is further configured to:
and when a second reference signal sent by the interference party is monitored, remote interference suppression is carried out by adjusting local transmission resources.
Optionally, the processor is further configured to:
and when the remote interference elimination of the interference party is determined, restoring the original transmission resource configuration by adjusting the local transmission resource.
An embodiment of the present invention further provides a network-side device, which is an interferer, and includes a processor and a memory, where the memory stores program codes, and when the program codes are executed by the processor, the processor executes the following steps:
the interference party starts reference signal monitoring;
receiving a first reference signal sent by an interfered party, determining that remote interference to the interfered party exists, and transmitting a second reference signal;
and when receiving an interference elimination instruction sent by the interfered party through a backhaul link, determining remote interference elimination and stopping transmitting the second reference signal.
Optionally, the processor starts reference signal monitoring, including:
starting reference signal monitoring according to system automatic management OAM configuration; or
And starting reference signal monitoring when the remote interference exists. .
Optionally, the processor is further configured to:
and when receiving the first reference signal sent by the interfered party, performing remote interference suppression by adjusting local transmission resources.
Optionally, when determining remote interference cancellation, the processor is further configured to:
and restoring the original transmission resource configuration by adjusting the local transmission resource.
An embodiment of the present invention provides a second network-side device, where the network-side device is an interfered party, as shown in fig. 4, and the network-side device includes:
a reference monitoring module 401, configured to determine that the remote interference is received, transmit a first reference signal, and start reference signal monitoring;
a transmission stopping module 402, configured to monitor a second reference signal sent by an interferer, determine that the interferer has remote interference, and stop transmitting the first reference signal;
an interference disappearance indication module 403, configured to monitor that the second reference signal is eliminated, determine remote interference elimination of the interferer, and send an indication to the interferer through a backhaul link, where the indication is used to enable the interferer to stop sending the second reference signal.
Optionally, the reference monitoring module 401 determines that remote interference is experienced, including:
and when the interference thermal noise of the data transmission is determined to exceed the set threshold value, determining that the data transmission is subjected to remote interference.
Optionally, the monitoring, by the interference disappearance indication module 403, of the second reference signal cancellation includes:
and the second reference signal is not monitored beyond a set time length.
Optionally, when the transmission stopping module 402 monitors the second reference signal sent by the interferer, the module is further configured to:
remote interference suppression is performed by adjusting local transmission resources.
Optionally, when the interference cancellation indication module 403 determines remote interference cancellation of the interferer, it is further configured to:
and restoring the original transmission resource configuration by adjusting the local transmission resource.
An embodiment of the present invention provides a second network-side device, which is applied to an interferer, and as shown in fig. 5, includes:
a reference monitoring starting module 501, configured to start reference signal monitoring;
a reference signal transmission module 502, configured to receive a first reference signal sent by an interfered party, determine that remote interference to the interfered party exists, and transmit a second reference signal;
a transmission stopping module 503, configured to determine remote interference cancellation and stop transmitting the second reference signal when receiving an interference cancellation indication sent by the interfered party through the backhaul link.
Optionally, the reference monitoring starting module 501 starts reference signal monitoring, including:
starting reference signal monitoring according to system automatic management OAM configuration; or
And starting reference signal monitoring when the remote interference exists.
Optionally, when the reference signal transmission module receives a first reference signal sent by the interfered party, the reference signal transmission module is further configured to:
remote interference suppression is performed by adjusting local transmission resources.
Optionally, when the transmission stopping module determines the remote interference cancellation, the transmission stopping module is further configured to:
and restoring the original transmission resource configuration by adjusting the local transmission resource.
Example 6
Based on the same inventive concept, the embodiment of the present invention further provides a remote interference management method, which is applied to an interfered party, and since a device corresponding to the method is an interfered party in the remote interference management system according to the embodiment of the present invention, and a principle of solving problems of the method is similar to that of the device, implementation of the method can refer to implementation of the system, and repeated details are omitted.
As shown in fig. 6, the remote interference management method in the embodiment of the present invention includes:
Optionally, the determination of the interfered party to be subjected to remote interference includes:
and when the interference thermal noise of the data transmission is determined to exceed the set threshold value, determining that the data transmission is subjected to remote interference.
Optionally, the monitoring for the second reference signal cancellation comprises:
and the second reference signal is not monitored beyond a set time length.
Optionally, when the second reference signal sent by the interferer is monitored, the method further includes:
and the interfered party performs remote interference suppression by adjusting local transmission resources.
Optionally, when determining remote interference cancellation of the interferer, further includes:
and the interfered party restores the original transmission resource configuration by adjusting the local transmission resource.
Based on the same inventive concept, another remote interference management method is also provided in the embodiments of the present invention, and is applied to an interfered party, because the device corresponding to the method is an interfering party in the remote interference management system in the embodiments of the present invention, and the principle of the method for solving the problem is similar to that of the device, the implementation of the method can refer to the implementation of the system, and repeated details are not repeated.
An embodiment of the present invention further provides a remote interference management method, applied to an interferer, as shown in fig. 7, including:
Optionally, reference signal monitoring is initiated, comprising:
starting reference signal monitoring according to system automatic management OAM configuration; or
And starting reference signal monitoring when the remote interference exists.
Optionally, when receiving the first reference signal sent by the interfered party, the method further includes:
and the interference party performs remote interference suppression by adjusting local transmission resources.
Optionally, when determining remote interference cancellation, the method further includes:
and the interference party restores the original transmission resource configuration by adjusting the local transmission resource.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A method for remote interference management, the method comprising:
the method comprises the steps that an interfered party is confirmed to be subjected to remote interference, a first reference signal is transmitted, and reference signal monitoring is started;
monitoring a second reference signal sent by an interference party, determining that the interference party has remote interference, and stopping transmitting the first reference signal;
monitoring the second reference signal cancellation, determining remote interference cancellation of the interferer, and sending an indication to the interferer through a backhaul link, the indication being used to cause the interferer to stop sending the second reference signal.
2. The method of claim 1, wherein determining that the victim is remotely interfered comprises:
and when the interference thermal noise of the data transmission is determined to exceed the set threshold value, determining that the data transmission is subjected to remote interference.
3. The method of claim 1, wherein monitoring for the second reference signal cancellation comprises:
and the second reference signal is not monitored beyond a set time length.
4. The method of claim 1, wherein monitoring for a second reference signal transmitted by an interferer further comprises:
and the interfered party performs remote interference suppression by adjusting local transmission resources.
5. The method of claim 1, wherein determining remote interference cancellation for the interferer further comprises:
and the interfered party restores the original transmission resource configuration by adjusting the local transmission resource.
6. A method for remote interference management, comprising:
the interference party starts reference signal monitoring;
receiving a first reference signal sent by an interfered party, determining that remote interference to the interfered party exists, and transmitting a second reference signal;
and when receiving an interference elimination instruction sent by the interfered party through a backhaul link, determining remote interference elimination and stopping transmitting the second reference signal.
7. The method of claim 6, wherein initiating reference signal monitoring comprises:
starting reference signal monitoring according to system automatic management OAM configuration; or
And starting reference signal monitoring when the remote interference exists.
8. The method of claim 6, wherein receiving the first reference signal transmitted by the interfered party further comprises:
and the interference party performs remote interference suppression by adjusting local transmission resources.
9. The method of claim 6, wherein determining remote interference cancellation further comprises:
and the interference party restores the original transmission resource configuration by adjusting the local transmission resource.
10. A network-side device comprising a processor and a memory, the memory storing program code that, when executed by the processor, causes the processor to perform the steps of the method of any one of claims 1 to 5 or the steps of the method of any one of claims 6 to 9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811141588 | 2018-09-28 | ||
| CN2018111415887 | 2018-09-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110971380A true CN110971380A (en) | 2020-04-07 |
| CN110971380B CN110971380B (en) | 2022-06-03 |
Family
ID=70028355
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811333441.8A Active CN110971380B (en) | 2018-09-28 | 2018-11-09 | Remote interference management method and network side equipment |
| CN201811331935.2A Active CN110971440B (en) | 2018-09-28 | 2018-11-09 | Remote interference management method |
| CN201811333447.5A Active CN110971381B (en) | 2018-09-28 | 2018-11-09 | Remote interference management method and network side equipment |
| CN201811333334.5A Active CN110971379B (en) | 2018-09-28 | 2018-11-09 | Remote interference management method and network side equipment |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811331935.2A Active CN110971440B (en) | 2018-09-28 | 2018-11-09 | Remote interference management method |
| CN201811333447.5A Active CN110971381B (en) | 2018-09-28 | 2018-11-09 | Remote interference management method and network side equipment |
| CN201811333334.5A Active CN110971379B (en) | 2018-09-28 | 2018-11-09 | Remote interference management method and network side equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN110971380B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114363795A (en) * | 2020-09-27 | 2022-04-15 | 中国移动通信有限公司研究院 | Method, apparatus, device and medium for locating far-end interference |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012122560A2 (en) * | 2011-03-10 | 2012-09-13 | Comtech Ef Data Corp. | A method for the control of a wireless communications link for mitigating adjacent satellite interference |
| US20140056190A1 (en) * | 2011-04-08 | 2014-02-27 | Telefonaktiebolaget L M Ericsson (Publ) | Reducing Interference Caused by an Atmospheric Duct in a Wireless Communication System |
| CN104969643A (en) * | 2013-04-25 | 2015-10-07 | 华为技术有限公司 | Interference suppression method, related device, and system |
| CN105828349A (en) * | 2015-01-04 | 2016-08-03 | 中国移动通信集团公司 | Far-end interference detection method and far-end interference detection device based on TD-LTE system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102595436B (en) * | 2011-01-13 | 2015-05-27 | 华为技术有限公司 | Method, device and system for detecting interference |
| CN103095631A (en) * | 2011-11-03 | 2013-05-08 | 中兴通讯股份有限公司 | Transmission method, allocation method and device of downlink reference signal |
| WO2015022388A1 (en) * | 2013-08-16 | 2015-02-19 | Nokia Solutions And Networks Oy | Method and apparatus for transmitting interference reference signals to assist channel quality measurements |
| CN105025519B (en) * | 2014-04-30 | 2019-06-14 | 电信科学技术研究院 | Interference signal measurement method and relevant device |
| CN106488488A (en) * | 2015-08-31 | 2017-03-08 | 中兴通讯股份有限公司 | A kind of base station interference detection method and device |
| CN106817707B (en) * | 2015-11-30 | 2021-02-23 | 上海诺基亚贝尔股份有限公司 | Method and device for detecting and assisting in detecting signal source in base station |
| CN108289311B (en) * | 2017-01-09 | 2022-10-14 | 中兴通讯股份有限公司 | Interference measuring method and device and timing deviation measuring method |
-
2018
- 2018-11-09 CN CN201811333441.8A patent/CN110971380B/en active Active
- 2018-11-09 CN CN201811331935.2A patent/CN110971440B/en active Active
- 2018-11-09 CN CN201811333447.5A patent/CN110971381B/en active Active
- 2018-11-09 CN CN201811333334.5A patent/CN110971379B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012122560A2 (en) * | 2011-03-10 | 2012-09-13 | Comtech Ef Data Corp. | A method for the control of a wireless communications link for mitigating adjacent satellite interference |
| US20140056190A1 (en) * | 2011-04-08 | 2014-02-27 | Telefonaktiebolaget L M Ericsson (Publ) | Reducing Interference Caused by an Atmospheric Duct in a Wireless Communication System |
| CN104969643A (en) * | 2013-04-25 | 2015-10-07 | 华为技术有限公司 | Interference suppression method, related device, and system |
| US20160044689A1 (en) * | 2013-04-25 | 2016-02-11 | Huawei Technologies Co., Ltd. | Interference suppression method and related device and system |
| CN105828349A (en) * | 2015-01-04 | 2016-08-03 | 中国移动通信集团公司 | Far-end interference detection method and far-end interference detection device based on TD-LTE system |
Non-Patent Citations (1)
| Title |
|---|
| CMCC: "Status Report of SI on remote interference management for NR", 《3GPP TSG RAN MEETING #81 RP-181831》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110971381A (en) | 2020-04-07 |
| CN110971440B (en) | 2023-04-18 |
| CN110971380B (en) | 2022-06-03 |
| CN110971379B (en) | 2022-10-18 |
| CN110971379A (en) | 2020-04-07 |
| CN110971381B (en) | 2023-01-03 |
| CN110971440A (en) | 2020-04-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102257629B1 (en) | Method and device for performing fast fallback in order to avoid link disconnection in wireless access system supporting millimeter wave (mmwave) | |
| RU2644396C2 (en) | Device and method for self-interference signal reduction in communication system | |
| RU2014109135A (en) | REDUCING THE EFFECT OF LOST SYNCHRONIZATION OF RESOURCE ALLOCATION BETWEEN USER EQUIPMENT (UE) AND IMPROVED Node B (eNodeB) | |
| WO2020029810A1 (en) | Signal transmission method and device | |
| US11930520B2 (en) | Interference management in wireless systems | |
| WO2016141529A1 (en) | Data transmission device, method and system | |
| CN110324120B (en) | Reference signal sending method and device, equipment and storage medium | |
| CN110958074B (en) | Method, system, apparatus and computer readable storage medium for suppressing interference | |
| CN110971380B (en) | Remote interference management method and network side equipment | |
| CN111436063B (en) | Network side equipment and method for performing remote interference suppression | |
| JP2023546934A (en) | Data transmission methods, devices, terminals, network equipment and storage media | |
| CN103517313A (en) | Method for detecting interference signal and device thereof | |
| CN110944346B (en) | Signal sending method and device | |
| CN110752900B (en) | Reference signal interception method and device, communication equipment and storage medium | |
| US11296856B2 (en) | Method for transmitting information and device | |
| CN116113058A (en) | Physical side link feedback channel resource configuration method, terminal and network equipment | |
| KR20140031580A (en) | Method and apparatus to reduce uplink noise | |
| CN111602458B (en) | Method and apparatus for NPRACH detection | |
| CN114731680A (en) | Failure recovery for serving cell | |
| CN110831046B (en) | Signal transmission method and network equipment | |
| KR101481867B1 (en) | A method for transmission of network synchronization signal in multi-user wireless communication systems | |
| CN110808809B (en) | Signal transmission method and device | |
| CN109792395B (en) | Method and apparatus for broadcast signaling transmission | |
| TW202415026A (en) | Self-interference estimation system and method thereof in-band full-duplex communication | |
| CN114244382A (en) | Signal processing method, device, equipment and readable storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |