CN111629437B - Method and equipment for processing interference of remote base station - Google Patents
Method and equipment for processing interference of remote base station Download PDFInfo
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- CN111629437B CN111629437B CN201910146460.8A CN201910146460A CN111629437B CN 111629437 B CN111629437 B CN 111629437B CN 201910146460 A CN201910146460 A CN 201910146460A CN 111629437 B CN111629437 B CN 111629437B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/27—Control channels or signalling for resource management between access points
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
- H04J11/005—Interference mitigation or co-ordination of intercell interference
- H04J11/0056—Inter-base station aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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Abstract
The invention provides a method and equipment for processing remote base station interference. The invention uses the common frequency band (the first frequency band) of the same air interface access system to transmit and detect the reference signal of the remote interference, because the first frequency band is the common working frequency band of the communication equipment, the reference signal between the communication equipment can be detected, thus, the first communication equipment carries out the interference suppression processing on the frequency band of the same or different air interface access system after detecting the reference signal, thereby realizing the interference indication and the interference system processing between different systems.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a method and equipment for processing interference of a remote base station.
Background
In remote base station interference management (remote interference management, RIM), a victim station (victims) is considered to be interfered by a remote base station when its interference noise (interference over thermal, ioT) rises above a threshold. The victim station informs it that remote interference is generated to the victim station by sending a reference signal to the offender station (aggressor).
An existing RIM mechanism, when applied in a TD-LTE network, includes:
the uplink transmission symbol of the interfered station detects the lifting of the IoT and triggers the interfered station to send a RIM reference signal;
the scrambling station monitors the RIM reference signal;
the scrambling station reports the RIM reference signal detected by the scrambling station to an operation maintenance management (OAM) network manager;
the OAM network manager sends a remote base station interference management instruction to the interference applying station;
the scrambling station implements an interference suppression scheme.
In the initial stage of new air interface (NR) network deployment, a scenario (for example, 2.6 GHz) where a large number of NR networks coexist with Long Term Evolution (LTE) networks will occur in network deployment of the same operator, where LTE interference NR may occur, and vice versa, as shown in fig. 1 and 2:
in the above scenario, with the existing scheme, the victim station transmits a reference signal on the interfered sub-bandwidth, and the victim station cannot normally detect the reference signal, so that the remote base station interference management mechanism cannot be started normally.
Disclosure of Invention
An object of the embodiments of the present invention is to provide a method and apparatus for processing remote bs interference, which can implement remote bs interference management between different systems.
The embodiment of the invention provides a method for processing remote base station interference, which comprises the following steps:
The first communication device detects a first reference signal for indicating remote interference on a first frequency band;
the first communication equipment performs interference suppression processing on a second frequency band when detecting the first reference signal sent by the second communication equipment;
the second frequency band comprises the first frequency band, and on the first frequency band, the first communication device and the second communication device both use the same first air interface access system.
The embodiment of the invention also provides another method for processing the interference of the remote base station, which comprises the following steps:
the second communication device detects a far-end interference event on a fourth frequency band;
the second communication device sends a first reference signal for indicating remote interference on a first frequency band when detecting the remote interference event of the first communication device;
the first communication equipment and the second communication equipment use the same first air interface access system on the first frequency band; and the fourth frequency band is any one of the following frequency bands: the first frequency band, the second frequency band and the third frequency band, wherein the second frequency band comprises the first frequency band and the third frequency band.
The embodiment of the invention also provides first communication equipment, which comprises:
A transceiver for detecting a first reference signal on a first frequency band for indicating far-end interference;
a processor, configured to perform interference suppression processing on a second frequency band when the transceiver detects the first reference signal sent by the second communication device;
the second frequency band comprises the first frequency band, and on the first frequency band, the first communication device and the second communication device both use the same first air interface access system.
The embodiment of the invention also provides second communication equipment, which comprises:
a processor configured to detect a far-end interference event on a fourth frequency band;
a transceiver for transmitting a first reference signal on a first frequency band for indicating a far-end interference when the processor detects the far-end interference event of a first communication device;
the first communication equipment and the second communication equipment use the same first air interface access system on the first frequency band; and the fourth frequency band is any one of the following frequency bands: the first frequency band, the second frequency band and the third frequency band, wherein the second frequency band comprises the first frequency band and the third frequency band.
The embodiment of the invention also provides a communication device, which is characterized by comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method of remote base station interference handling as described above.
Embodiments of the present invention also provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method as described above.
The method and the device for processing the remote base station interference provided by the embodiment of the invention utilize the common frequency band (the first frequency band) of the communication equipment which works in the same air interface access system to transmit and detect the reference signal of the remote interference, thereby realizing the interference indication among different systems and the interference system processing.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is a schematic diagram of inter-system remote base station interference in the prior art;
FIG. 2 is another schematic diagram of inter-system remote base station interference in the prior art;
fig. 3 is a flow chart of a method for processing interference of a remote base station according to an embodiment of the present invention;
Fig. 4 is another flow chart of a method for processing remote bs interference according to an embodiment of the present invention;
fig. 5 is an application example diagram of a method for processing remote bs interference according to an embodiment of the present invention;
fig. 6 is another application example diagram of a method for processing remote bs interference according to an embodiment of the present invention;
fig. 7 is one of the structural diagrams of the first communication device according to the embodiment of the present invention;
FIG. 8 is a second block diagram of a first communication device according to an embodiment of the present invention;
fig. 9 is one of the structural diagrams of the second communication device according to the embodiment of the present invention;
fig. 10 is a second block diagram of a second communication device according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be capable of operation in sequences other than those illustrated or described herein, for example. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. "and/or" in the specification and claims means at least one of the connected objects.
The techniques described herein are not limited to long term evolution (Long Time Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems and may also be used for various wireless communication systems such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single-carrier frequency division multiple access (Single-carrier Frequency-Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. A CDMA system may implement radio technologies such as CDMA2000, universal terrestrial radio access (Universal Terrestrial Radio Access, UTRA), and the like. UTRA includes wideband CDMA (Wideband Code Division Multiple Access, WCDMA) and other CDMA variants. TDMA systems may implement radio technologies such as the global system for mobile communications (Global System for Mobile Communication, GSM). OFDMA systems may implement radio technologies such as ultra mobile broadband (UltraMobile Broadband, UMB), evolved UTRA (E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, flash-OFDM, and the like. UTRA and E-UTRA are parts of the universal mobile telecommunications system (Universal Mobile Telecommunications System, UMTS). LTE and higher LTE (e.g., LTE-a) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-a and GSM are described in the literature from an organization named "third generation partnership project" (3rd Generation Partnership Project,3GPP). CDMA2000 and UMB are described in the literature from an organization named "third generation partnership project 2" (3 GPP 2). The techniques described herein may be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. However, the following description describes an NR system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications.
The following description provides examples and does not limit the scope, applicability, or configuration as set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
In the embodiment of the present invention, the first communication device or the second communication device may be an LTE base station 5G and later versions of base stations (such as a gNB, a 5G NR NB, etc.), or base stations in other communication systems (such as an eNB, a WLAN access point, or other access points, etc.), where a base station may also be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, a BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, or some other suitable terminology in the field, so long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary, and in the embodiment of the present invention, the base station in the LTE and NR system is taken as an example, but the specific type of the base station is not limited.
Referring to fig. 3, a method for processing remote bs interference according to an embodiment of the present invention, when applied to a first communication device, includes:
in step 31, the first communication device detects a first reference signal on a first frequency band for indicating remote interference.
Here, the first reference signal may be a remote interference management reference signal (RIM-RS), or may be another predefined signal for indicating remote interference, which is not specifically limited in the embodiment of the present invention.
And step 32, when the first communication device detects the first reference signal sent by the second communication device, performing interference suppression processing on a second frequency band by the first communication device.
Here, the first communication device may operate in a second frequency band, where the second frequency band includes the first frequency band, and may further include a third frequency band. Specifically, on the first frequency band, the first communication device and the second communication device both use the first air interface access system. And on a third frequency band, the first communication device may use the first air interface access system or a second air interface access system, wherein the second air interface access system is different from the first air interface access system.
In the step 32, the first communication device performs interference suppression processing on a second frequency band, where the second frequency band includes the first frequency band and may also include the third frequency band. Preferably, the second communication device may perform interference suppression processing on all frequency bands in which the second communication device itself operates, and in this case, the second frequency band may be all frequency bands in which the first communication device itself operates. For example, where the first communication device comprises modules operating on different air interface access systems, all of the frequency bands described above may comprise all of the frequency bands on which the first communication device operates.
In the embodiment of the present invention, the first frequency band is an operating frequency band configured in advance for a first air interface access system of a first communication device (may have a plurality of) and a second communication device (may have a plurality of) that are both using the same air interface access system on the first frequency band, and specifically may be an air interface access system of an NR network, where the first frequency band may specifically be a certain frequency band or a certain frequency bands of the NR system.
In the embodiment of the present invention, the first communication device may support multiple air interface access systems, for example, the first communication device may support an air interface access system of an LTE system and an NR system at the same time, and of course, the first communication device may also support only one air interface access system. Similarly, the second communication device may support 1 or more than 1 air interface access systems.
Specifically, when the first communication device uses the second air interface access system in the third frequency band, the first communication device may send, through a preconfigured inter-system interaction interface, a request message for indicating that interference suppression processing is performed in the third frequency band to the second air interface access system of the first communication device, between the above steps 31 and 32. For example, assuming that the first air interface access system is an air interface access system of the NR network and the second air interface access system is an air interface access system of the LTE network, the first communication device may include a first module based on the first air interface access system and a second module based on the second air interface access system. After the first module of the first communication device detects a first reference signal for indicating remote interference on a first frequency band, a request message for indicating interference suppression processing on a third frequency band can be sent to the second module through a pre-configured intersystem interaction interface. And after receiving the request message, the second module performs interference suppression processing on the third frequency band.
Through the steps, the embodiment of the invention can utilize the common frequency band (the first frequency band) of the same air interface access system to transmit and detect the reference signal of the remote interference by utilizing the work between the communication devices, and the reference signal between the communication devices can be detected because the first frequency band is the common working frequency band of the communication devices, so that the first communication device performs interference suppression processing on the frequency band of the same or different air interface access systems after detecting the reference signal, thereby realizing interference indication between different systems and interference system processing.
In addition, in the embodiment of the present invention, the same air interface access system may be preconfigured for the first communication device and the second communication device on the first frequency band, and in this case, before the step 31, the method may further include: the first communication device receives configuration information; and the first communication equipment configures a first air interface access system which is used by the same as the second communication equipment on the first frequency band according to the configuration information. Specifically, the first communication device may receive the configuration information configured by the network management OAM.
In addition, when performing the interference suppression processing, the embodiment of the present invention may adopt similar means in the prior art, for example, at least one of the following processes is performed on the second frequency band: antenna downtilt adjustment, transmit signal power control, and transmit symbol backoff processing. For example, a higher antenna downtilt implies a larger coverage and higher interference to neighboring base stations, and thus interference suppression may be performed by reducing the antenna downtilt. Also for example, a higher transmit signal power means a larger coverage and higher interference to neighboring base stations, and thus interference suppression can be performed by reducing the transmit signal power. For another example, canceling data transmission on some symbols may reduce interference to neighboring base stations, and thus interference suppression may be performed by canceling data transmission on some symbols through transmission symbol backoff processing.
The method for processing the interference of the remote base station according to the embodiment of the present invention is described above from the first communication device side, and is further described below from the second communication device side.
Referring to fig. 4, a method for processing remote bs interference according to an embodiment of the present invention, when applied to a second communication device, includes:
in step 41, the second communication device detects a far-end interference event on the fourth frequency band.
Here, the remote jamming event may be detection of an IOT event, such as detection of an IOT lift above a predetermined threshold. Of course, other events for determining that the remote interference exists may be predefined in the embodiment of the present invention, which is not limited in detail in this embodiment of the present invention.
In step 42, the second communication device transmits a first reference signal for indicating a far-end interference on the first frequency band upon detecting said far-end interference event of the first communication device.
Here, the first reference signal may specifically be a remote interference management reference signal (RIM-RS), and may be another predefined signal for indicating remote interference.
The first communication equipment and the second communication equipment use the same first air interface access system on the first frequency band; and the fourth frequency band is any one of the following frequency bands: the first frequency band, the second frequency band and the third frequency band, wherein the second frequency band comprises the first frequency band and the third frequency band.
Through the steps, when the second communication equipment detects the remote interference event on the fourth frequency band, the reference signal is sent through the common frequency band (the first frequency band) of the same air interface access system working between the communication equipment, so that the first communication equipment performs interference suppression processing on the second frequency band according to the first reference signal. Here, the second frequency band may include the first frequency band, and may further include the third frequency band. Specifically, on the first frequency band, the second communication device and the first communication device both use the first air interface access system. And on a third frequency band, the second communication device may use the first air interface access system or a second air interface access system, where the second air interface access system is different from the first air interface access system.
Preferably, when the second communication device detects the remote interference event in the third frequency band and the second communication device uses the second air interface access system in the third frequency band, the module based on the second air interface access system of the second communication device may further send, through a preconfigured inter-system interaction interface, a request message for indicating to send the first reference signal in the first frequency band to the first air interface access system of the second communication device when the remote interference event is detected. Thus, the module of the second communication device based on the first air interface access system may send the first reference signal described in step 42 after receiving the request message.
In addition, in the embodiment of the present invention, the second communication device and the first communication device may be preconfigured to use the same air interface access system on the first frequency band, and in this case, before the step 41, the method may further include: the second communication device receives the configuration information; and the second communication equipment configures a first air interface access system which is used on the first frequency band and is the same as the first communication equipment according to the configuration information. Specifically, the second communication device may receive the configuration information configured by the network management OAM.
Fig. 5 and fig. 6 are diagrams respectively showing an application example of a method for processing remote base station interference according to an embodiment of the present invention.
As shown in FIG. 5, the victim station comprises 4 NR frequency bands from NR-1 to NR-4, and the victim station adopts an air interface access system in the NR network on the 4 frequency bands. The scrambling station comprises 3 NR frequency bands from NR-1 to NR-3 and also comprises 1 LTE frequency band, wherein the scrambling station adopts an air interface access system of an NR network on the NR-1 to NR-3 frequency bands, and adopts an air interface access system of an LTE network on the LTE frequency band. It can be seen that there is an overlapping frequency range of the LTE band and the NR-4 band. In addition, the interfered station and the scrambling station both use an air interface access system of an NR network on the NR-1-NR-3 frequency band.
In fig. 5, the scrambling station transmits data in the LTE band, and since the LTE band overlaps with the NR-4 band, the scrambling station may detect remote interference caused by the scrambling station transmitting data in the LTE band in the NR-4 band, at this time, the scrambling station will transmit a reference signal for indicating remote interference in a common NR band (NR-1 to NR-3 band) of the two base stations, and after detecting the reference signal, the scrambling station will perform full-bandwidth interference suppression processing, that is, interference suppression processing in the NR-1 to NR-3 band and the LTE band.
In fig. 5, if the Shi Rao station only interferes with the NR frequency band of the victim station in the LTE frequency band, it is generally explained that the load of the NR frequency band is low, and does not interfere with the corresponding NR frequency band of the victim station, so that even if the victim station performs full-bandwidth interference suppression, the downlink transmission throughput of the NR network is not seriously affected.
As shown in FIG. 6, the interfered station comprises 3 NR frequency bands from NR-1 to NR-3, and also comprises 1 LTE frequency band, the interfered station adopts an air interface access system of an NR network on the NR-1 to NR-3 frequency bands, and adopts an air interface access system of an LTE network on the LTE frequency band. The scrambling station comprises 4 NR frequency bands from NR-1 to NR-4, and the scrambling station adopts an air interface access system in an NR network on the 4 frequency bands. It can be seen that there is an overlapping frequency range of the LTE band and the NR-4 band. In addition, the interfered station and the scrambling station both use an air interface access system of an NR network on the NR-1-NR-3 frequency band.
In fig. 6, the scrambling station transmits data in the NR-4 frequency band, and since the LTE frequency band overlaps with the NR-4 frequency band, the scrambling station may detect remote interference caused by the scrambling station transmitting data in the NR-4 frequency band in the LTE frequency band, at this time, the scrambling station will transmit a reference signal for indicating remote interference in a common NR frequency band (NR-1 to NR-3 frequency bands) of the two base stations, and after the scrambling station detects the reference signal, the scrambling station will perform full-bandwidth interference suppression processing, that is, interference suppression processing in the NR-1 to NR-4 frequency bands.
In the initial stage of NR network deployment, the NR load is generally lower, and although the scrambling station in fig. 6 has transmission capability on the full bandwidth, only a part of frequency bands (sub-bandwidths) are opened for energy saving and other reasons, so that the scrambling station interferes with the LTE frequency band (bandwidth) of the interfered station, and at this time, the scrambling station performs full-bandwidth interference suppression processing, so that the self transmission throughput cannot be affected.
It can be seen that, by the above method, the above example of the invention transmits the RIM reference signal on the NR bandwidth through the victim station, and the offender station (on the NR bandwidth) detects the reference signal and then performs the full-bandwidth interference suppression processing, which can effectively solve the problem of the mutual interference between the LTE and the NR network, and realize the remote interference suppression processing between the NR and the LTE system.
The foregoing describes various methods of embodiments of the present invention. An apparatus for carrying out the above method is further provided below.
Embodiments of the present invention provide FIG. 7 a first communication device is shown. Referring to fig. 7, an embodiment of the present invention provides a schematic structural diagram of a first communication device 70, including:
a transceiver 72 for detecting a first reference signal on a first frequency band for indicating far-end interference;
a processor 71, configured to perform interference suppression processing on a second frequency band when the detection unit detects the first reference signal sent by the second communication device;
the second frequency band comprises the first frequency band, and on the first frequency band, the first communication device and the second communication device both use the same first air interface access system.
Preferably, the second frequency band further includes a third frequency band, and on the third frequency band, the first communication device uses the first air interface access system or a second air interface access system, where the second air interface access system is different from the first air interface access system.
Preferably, the first communication device further includes:
and an interaction interface unit (not shown in the figure) configured to send, when the first communication device uses the second air interface access system in the third frequency band, a request message for indicating that interference suppression processing is performed in the third frequency band to the second air interface access system of the first communication device through a pre-configured inter-system interaction interface.
Preferably, the processor 71 is further configured to perform at least one of the following processing on the second frequency band: antenna downtilt adjustment, transmit signal power control, and transmit symbol backoff processing.
Preferably, the first reference signal is a remote interference management reference signal RIM-RS.
Preferably, the transceiver 72 is further configured to receive configuration information prior to detecting a first reference signal indicating remote interference;
the processor 72 is further configured to configure, according to the configuration information, a first air interface access system that uses the same as the second communication device on the first frequency band.
Preferably, the transceiver 71 is further configured to receive the configuration information of the network management OAM configuration.
Referring to fig. 8, another schematic structural diagram of a second communication device 800 is provided in an embodiment of the present invention, including: a processor 801, a transceiver 802, a memory 803, and a bus interface, wherein:
a transceiver 802 for detecting a first reference signal on a first frequency band for indicating far-end interference;
the processor 801 is configured to read the program in the memory, and execute the following procedures: performing interference suppression processing on a second frequency band when the transceiver 802 detects the first reference signal sent by a second communication device;
The second frequency band comprises the first frequency band, and on the first frequency band, the first communication device and the second communication device both use the same first air interface access system.
In fig. 8, a bus architecture may be comprised of any number of interconnected buses and bridges, and in particular, one or more processors represented by the processor 801 and various circuits of the memory represented by the memory 803. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 802 may be a number of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium.
The processor 801 is responsible for managing the bus architecture and general processing, and the memory 803 may store data used by the processor 801 in performing operations.
Preferably, the second frequency band further includes a third frequency band, and on the third frequency band, the first communication device uses the first air interface access system or a second air interface access system, where the second air interface access system is different from the first air interface access system.
Preferably, the processor 801 is further configured to send, when the first communication device uses the second air interface access system in the third frequency band, a request message for indicating that interference suppression processing is performed in the third frequency band to the second air interface access system of the first communication device through a preconfigured inter-system interaction interface.
Preferably, the processor 801 is further configured to perform at least one of the following processing on the second frequency band: antenna downtilt adjustment, transmit signal power control, and transmit symbol backoff processing.
Preferably, the first reference signal is a remote interference management reference signal RIM-RS.
Preferably, the transceiver 802 is further configured to receive configuration information before detecting a first reference signal for indicating remote interference;
the processor 801 is further configured to configure, according to the configuration information, a first air interface access system that is the same as the second communication device and is used on the first frequency band.
Preferably, the transceiver 802 is further configured to receive the configuration information of the network management OAM configuration.
The embodiment of the invention provides a second communication device shown in fig. 9. Referring to fig. 9, an embodiment of the present invention provides a schematic structural diagram of a second communication device 90, including a transceiver 92 and a processor 91, wherein:
A processor 92 for detecting a far-end interference event on a fourth frequency band;
a transceiver 91 for transmitting a first reference signal for indicating a far-end interference on a first frequency band when said processor detects said far-end interference event of a first communication device;
the first communication equipment and the second communication equipment use the same first air interface access system on the first frequency band; and the fourth frequency band is any one of the following frequency bands: the first frequency band, the second frequency band and the third frequency band, wherein the second frequency band comprises the first frequency band and the third frequency band.
Preferably, in the third frequency band, the second communication device uses the first air interface access system or a second air interface access system, where the second air interface access system is different from the first air interface access system.
Preferably, the second communication device further includes:
and the interactive interface unit is used for sending a request message for indicating to send the first reference signal in the first frequency band to the first air interface access system of the second communication equipment through a pre-configured intersystem interactive interface when the second communication equipment detects the remote interference event in the third frequency band and the second communication equipment uses the second air interface access system in the third frequency band.
Preferably, the first reference signal is a remote interference management reference signal RIM-RS.
Preferably, the transceiver 91 is further configured to receive configuration information;
the processor 92 is further configured to configure, according to the configuration information, a first air interface access system that uses the same as the first communication device on the first frequency band.
Preferably, the transceiver 91 is further configured to receive the configuration information of the network management OAM configuration.
Referring to fig. 10, another schematic structural diagram of a second communication device 1000 is provided in an embodiment of the present invention, including: processor 1001, transceiver 1002, memory 1003, and bus interface, wherein:
the processor 1001 is configured to read a program in the memory, and execute the following procedures: detecting a far-end interference event on a fourth frequency band;
a transceiver 1002 configured to send a first reference signal for indicating a far-end interference on a first frequency band when the processor detects the far-end interference event of a first communication device;
the first communication equipment and the second communication equipment use the same first air interface access system on the first frequency band; and the fourth frequency band is any one of the following frequency bands: the first frequency band, the second frequency band and the third frequency band, wherein the second frequency band comprises the first frequency band and the third frequency band.
In fig. 10, a bus architecture may be comprised of any number of interconnected buses and bridges, and in particular, one or more processors represented by the processor 1001 and various circuits of the memory represented by the memory 1003. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 1002 may be a number of elements, i.e. comprising a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium.
The processor 1001 is responsible for managing the bus architecture and general processing, and the memory 1003 may store data used by the processor 1001 in performing operations.
Preferably, in the third frequency band, the second communication device uses the first air interface access system or a second air interface access system, where the second air interface access system is different from the first air interface access system.
Preferably, the processor 1001 is further configured to send, when the second communication device detects the remote interference event in the third frequency band and the second communication device uses the second air interface access system in the third frequency band, a request message for indicating to send the first reference signal in the first frequency band to the first air interface access system of the second communication device through a preconfigured inter-system interaction interface.
Preferably, the first reference signal is a remote interference management reference signal RIM-RS.
Preferably, the transceiver 1002 is further configured to receive configuration information;
the processor 1001 is further configured to configure, according to the configuration information, a first air interface access system that is the same as the first communication device and is used on the first frequency band.
Preferably, the transceiver 1002 is further configured to receive the configuration information of the network management OAM configuration.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiment of the present invention.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (28)
1. A method for processing interference from a remote base station, comprising:
the first communication device detects a first reference signal for indicating remote interference on a first frequency band;
the first communication equipment performs interference suppression processing on a second frequency band when detecting the first reference signal sent by the second communication equipment;
the second frequency band comprises the first frequency band, and on the first frequency band, the first communication device and the second communication device both use the same first air interface access system.
2. The method of claim 1, wherein the second frequency band further comprises a third frequency band over which the first communication device uses the first air-interface access system or a second air-interface access system, wherein the second air-interface access system is different from the first air-interface access system.
3. The method of claim 2, wherein when the first communication device uses the second air interface access system on the third frequency band, prior to the step of performing interference suppression processing on the second frequency band, the method further comprises:
and transmitting a request message for indicating interference suppression processing on a third frequency band to a second air interface access system of the first communication equipment through a preconfigured intersystem interaction interface.
4. The method of claim 1 wherein said step of performing interference suppression processing on the second frequency band comprises:
performing at least one of the following processes on the second frequency band: antenna downtilt adjustment, transmit signal power control, and transmit symbol backoff processing.
5. The method of claim 1, wherein the first reference signal is a remote interference management reference signal RIM-RS.
6. The method of claim 1, wherein prior to the step of detecting a first reference signal for indicating far-end interference, the method further comprises:
receiving configuration information;
and configuring a first air interface access system which is used on the first frequency band and is the same as the second communication equipment according to the configuration information.
7. The method of claim 6, wherein the receiving configuration information comprises:
and receiving the configuration information of the network management OAM configuration.
8. A method for processing interference from a remote base station, comprising:
the second communication device detects a far-end interference event on a fourth frequency band;
the second communication device sends a first reference signal for indicating remote interference on a first frequency band when detecting the remote interference event of the first communication device;
The first communication equipment and the second communication equipment use the same first air interface access system on the first frequency band; and the fourth frequency band is any one of the following frequency bands: the first frequency band, the second frequency band and the third frequency band, wherein the second frequency band comprises the first frequency band and the third frequency band.
9. The method of claim 8, wherein the second communication device uses the first air-interface access system or a second air-interface access system on the third frequency band, wherein the second air-interface access system is different from the first air-interface access system.
10. The method of claim 9, wherein the second communication device detects the remote interference event in the third frequency band and the second communication device uses the second air interface access system in a third frequency band, before transmitting the first reference signal, the method further comprising:
and transmitting a request message for indicating to transmit the first reference signal in a first frequency band to a first air interface access system of the second communication equipment through a preconfigured intersystem interaction interface.
11. The method of claim 8, wherein the first reference signal is a remote interference management reference signal RIM-RS.
12. The method of claim 8, wherein the method further comprises:
receiving configuration information;
and configuring a first air interface access system which is used on the first frequency band and is the same as the first communication equipment according to the configuration information.
13. The method of claim 12, wherein the receiving configuration information comprises:
and receiving the configuration information of the network management OAM configuration.
14. A first communication device, comprising:
a transceiver for detecting a first reference signal on a first frequency band for indicating far-end interference;
a processor, configured to perform interference suppression processing on a second frequency band when the transceiver detects the first reference signal sent by the second communication device;
the second frequency band comprises the first frequency band, and on the first frequency band, the first communication device and the second communication device both use the same first air interface access system.
15. The first communications device of claim 14, wherein said second frequency band further includes a third frequency band over which said first communications device uses either said first air interface access system or a second air interface access system, wherein said second air interface access system is different from said first air interface access system.
16. The first communications device of claim 15, further comprising:
and the interactive interface unit is used for sending a request message for indicating interference suppression processing on a third frequency band to the second air interface access system of the first communication device through a pre-configured inter-system interactive interface when the first communication device uses the second air interface access system on the third frequency band.
17. The first communication device of claim 14,
the processor is further configured to perform at least one of the following processing on the second frequency band: antenna downtilt adjustment, transmit signal power control, and transmit symbol backoff processing.
18. The first communications device of claim 14, wherein said first reference signal is a remote interference management reference signal RIM-RS.
19. The first communication device of claim 14,
the transceiver is further configured to receive configuration information prior to detecting a first reference signal indicating far-end interference;
the processor is further configured to configure, according to the configuration information, a first air interface access system that is the same as the second communication device and is used on the first frequency band.
20. The first communication device of claim 19,
the transceiver is further configured to receive the configuration information configured by the network management OAM.
21. A second communication device, comprising:
a processor configured to detect a far-end interference event on a fourth frequency band;
a transceiver for transmitting a first reference signal on a first frequency band for indicating a far-end interference when the processor detects the far-end interference event of a first communication device;
the first communication equipment and the second communication equipment use the same first air interface access system on the first frequency band; and the fourth frequency band is any one of the following frequency bands: the first frequency band, the second frequency band and the third frequency band, wherein the second frequency band comprises the first frequency band and the third frequency band.
22. The second communications device of claim 21, wherein on the third frequency band the second communications device uses either the first air interface access system or a second air interface access system, wherein the second air interface access system is different from the first air interface access system.
23. The second communications device of claim 22, further comprising:
And the interactive interface unit is used for sending a request message for indicating to send the first reference signal in the first frequency band to the first air interface access system of the second communication equipment through a pre-configured intersystem interactive interface when the second communication equipment detects the remote interference event in the third frequency band and the second communication equipment uses the second air interface access system in the third frequency band.
24. The second communications device of claim 21, wherein said first reference signal is a remote interference management reference signal RIM-RS.
25. The second communication device of claim 21, wherein,
the transceiver is further used for receiving configuration information;
the processor is further configured to configure, according to the configuration information, a first air interface access system that is the same as the first communication device and is used on the first frequency band.
26. The second communication device of claim 21, wherein,
the transceiver is further configured to receive the configuration information configured by the network management OAM.
27. A communication device, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, which, when executed by the processor, performs the steps of the method of handling remote base station interference as claimed in any one of claims 1 to 13.
28. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the method for processing remote base station interference according to any of claims 1 to 13.
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| CN107113622B (en) * | 2015-12-18 | 2020-12-01 | 华为技术有限公司 | Interference suppression method, device and system |
| EP3361768A1 (en) * | 2017-02-13 | 2018-08-15 | Thomson Licensing | Method, device and system for detecting interferences |
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