CN115549880B - Interference suppression method, device, equipment and storage medium - Google Patents
Interference suppression method, device, equipment and storage medium Download PDFInfo
- Publication number
- CN115549880B CN115549880B CN202211124638.7A CN202211124638A CN115549880B CN 115549880 B CN115549880 B CN 115549880B CN 202211124638 A CN202211124638 A CN 202211124638A CN 115549880 B CN115549880 B CN 115549880B
- Authority
- CN
- China
- Prior art keywords
- carrier
- frequency
- interference
- determining
- downlink
- 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.)
- Active
Links
- 230000001629 suppression Effects 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 56
- 230000002776 aggregation Effects 0.000 claims abstract description 38
- 238000004220 aggregation Methods 0.000 claims abstract description 38
- 238000012545 processing Methods 0.000 claims description 26
- 230000006870 function Effects 0.000 claims description 19
- 230000015654 memory Effects 0.000 claims description 18
- 230000002452 interceptive effect Effects 0.000 claims description 15
- 239000000969 carrier Substances 0.000 abstract description 60
- 238000004891 communication Methods 0.000 abstract description 10
- 238000001228 spectrum Methods 0.000 description 11
- 238000010295 mobile communication Methods 0.000 description 9
- 230000009977 dual effect Effects 0.000 description 8
- 238000013461 design Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000002829 reductive effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004590 computer program Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000002401 inhibitory effect Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000802 evaporation-induced self-assembly Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The application discloses an interference suppression method, an interference suppression device, interference suppression equipment and a storage medium, which relate to the technical field of communication and are used for improving the efficiency of suppressing signal interference among carriers and comprise the following steps: determining a first carrier and a second carrier accessed by a target terminal, wherein the target terminal is any terminal supporting carrier aggregation or dual-connection function in a carrier aggregation or dual-connection system; determining a corresponding frequency interval between the first carrier and the second carrier, and determining a size relation between the frequency interval and a preset threshold; when the frequency interval is determined to be smaller than a preset threshold value, determining that interference exists between the first carrier and the second carrier, and determining a Shi Rao carrier corresponding to the first carrier and the second carrier, wherein the Shi Rao carrier is at least one of the first carrier and the second carrier; and determining the corresponding interference frequency band between the first carrier and the second carrier, and controlling the scrambling carrier to stop transmitting the reference signal in the interference frequency band. The method and the device are applied to the scene of suppressing signal interference among carriers.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to an interference suppression method, apparatus, device, and storage medium.
Background
With the rapid increase of mobile communication network traffic, the scarcity of spectrum resources becomes an important factor for limiting network capacity. In order to improve the utilization rate of spectrum resources and system performance, the fourth generation mobile communication technology (the 4Generation mobile communication technology,4G) and the fifth generation mobile communication technology (the 5Generation mobile communication technology,5G) introduce carrier aggregation and dual connection technologies, so that a plurality of continuous or discrete carrier aggregation or dual connection forms a spectrum with larger bandwidth, and meanwhile, discontinuous spectrum fragments can be aggregated together, thereby effectively improving network capacity and maximally utilizing the existing spectrum resources.
In a carrier aggregation or dual-connection system, if the working frequencies of a plurality of carriers are adjacent or the frequency interval between the carriers is smaller, when a terminal simultaneously transmits and receives data on a plurality of carriers, the situation that the uplink signal or the downlink signal of a certain carrier falls into the receiving frequency band of other carriers may occur, so that the signal interference problem between the multiple carriers occurs at the terminal side; in order to avoid such interference, the interference signals outside the carrier receiving frequency band are generally filtered based on a filter built in the terminal, so that the interference is suppressed.
In the method, the interference suppression effect depends on the performance of the filter in the terminal, and if a high-performance filter is adopted, the interference suppression effect is better, but correspondingly, the terminal is larger in size and higher in cost. Because of the high requirements of the terminal on volume and cost, the filter performance of the terminal is limited, the suppression effect on the signal interference between adjacent frequency carriers is not ideal, and the service performance of the terminal is affected. Therefore, the current efficiency of suppressing signal interference between carriers is poor.
Disclosure of Invention
The application provides an interference suppression method, device, equipment and storage medium, which are used for improving the efficiency of suppressing signal interference among carriers.
In order to achieve the above purpose, the present application adopts the following technical scheme:
in a first aspect, there is provided an interference suppression method, the method comprising: determining a first carrier and a second carrier which are accessed by a target terminal, wherein the working frequency of the first carrier is lower than that of the second carrier, and the target terminal is any terminal supporting carrier aggregation or double connection functions in a carrier aggregation or double connection system; determining a corresponding frequency interval between the first carrier and the second carrier, and determining a size relation between the frequency interval and a preset threshold; when the frequency interval is determined to be smaller than a preset threshold value, determining that interference exists between the first carrier and the second carrier, and determining a Shi Rao carrier corresponding to the first carrier and the second carrier, wherein the Shi Rao carrier is at least one of the first carrier and the second carrier; determining a corresponding interference frequency band between the first carrier and the second carrier, and controlling the interference carrier to stop transmitting the reference signal in the interference frequency band, wherein the reference signal comprises at least one of the following components: cell reference signal CRS, channel state information reference signal CSI-RS, time reference signal TRS, positioning reference signal PRS.
In one possible implementation, the frequency interval includes: the first frequency interval is the interval between the downlink working frequency of the first carrier and the uplink working frequency of the second carrier in the frequency domain, and the second frequency interval is the interval between the downlink working frequency of the first carrier and the downlink working frequency of the second carrier in the frequency domain; when the frequency interval is determined to be smaller than the preset threshold, determining that interference exists between the first carrier and the second carrier, and determining a corresponding Shi Rao carrier between the first carrier and the second carrier, including: when the first frequency interval between the first carrier and the second carrier is smaller than a preset threshold value, determining that the uplink signal of the second carrier interferes with the downlink signal of the first carrier, wherein the scrambling carrier is the second carrier; when the second frequency interval between the first carrier and the second carrier is smaller than the preset threshold, the mutual interference between the downlink signal of the first carrier and the downlink signal of the second carrier is determined, and the Shi Rao carrier is the first carrier and the second carrier.
In one possible implementation manner, determining an interference frequency band corresponding to the first carrier and the second carrier, and controlling the interfering carrier to stop transmitting the reference signal in the interference frequency band, includes: under the condition that an uplink signal of a second carrier interferes with a downlink signal of a first carrier, determining a first frequency band between an uplink working frequency minimum value of the second carrier and a first frequency value as an interference frequency band, and controlling the second carrier to stop transmitting a reference signal in the first frequency band; the first frequency value is the sum of the minimum value of the uplink working frequency of the second carrier and the first interference bandwidth, and the first interference bandwidth is the difference between the preset threshold and the first frequency interval.
In one possible implementation manner, determining an interference frequency band corresponding to the first carrier and the second carrier, and controlling the interfering carrier to stop transmitting the reference signal in the interference frequency band, includes: under the condition that mutual interference exists between the downlink signal of the first carrier and the downlink signal of the second carrier and the scrambling carrier is the first carrier, determining a second frequency band between a second frequency value and the maximum value of the downlink working frequency of the first carrier as an interference frequency band, and controlling the first carrier to stop transmitting the reference signal in the second frequency band; under the condition that mutual interference exists between the downlink signal of the first carrier and the downlink signal of the second carrier and the scrambling carrier is the second carrier, determining a third frequency band between the minimum value of the downlink working frequency of the second carrier and a third frequency value as an interference frequency band, and controlling the second carrier to stop transmitting the reference signal in the third frequency band; the second frequency value is the difference between the maximum value of the downlink working frequency of the first carrier and the second interference bandwidth, the third frequency value is the sum of the minimum value of the downlink working frequency of the second carrier and the second interference bandwidth, and the second interference bandwidth is the difference between the preset threshold and the second frequency interval.
In one possible implementation manner, before determining the frequency interval corresponding to the first carrier and the second carrier and determining the magnitude relation between the frequency interval and the preset threshold, the method further includes: acquiring working frequency information of a first carrier and a second carrier, wherein the working frequency information comprises: the uplink working frequency of the first carrier, the downlink working frequency of the first carrier, the uplink working frequency of the second carrier and the downlink working frequency of the second carrier.
In a second aspect, there is provided an interference suppression device comprising: a determination unit and a processing unit; the determining unit is used for determining a first carrier and a second carrier which are accessed by a target terminal, the working frequency of the first carrier is lower than that of the second carrier, and the target terminal is any terminal supporting carrier aggregation or dual-connection function in a carrier aggregation or dual-connection system; the determining unit is used for determining the corresponding frequency interval between the first carrier wave and the second carrier wave and determining the size relation between the frequency interval and a preset threshold value; a determining unit, configured to determine that interference exists between the first carrier and the second carrier when the frequency interval is determined to be smaller than a preset threshold, and determine a corresponding Shi Rao carrier between the first carrier and the second carrier, where the Shi Rao carrier is at least one of the first carrier and the second carrier; the determining unit is used for determining the corresponding interference frequency band between the first carrier and the second carrier; the processing unit is configured to control the interfering carrier to stop transmitting the reference signal in the interference frequency band, where the reference signal includes at least one of the following: cell reference signal CRS, channel state information reference signal CSI-RS, time reference signal TRS, positioning reference signal PRS.
In one possible implementation, the frequency interval includes: the first frequency interval is the interval between the downlink working frequency of the first carrier and the uplink working frequency of the second carrier in the frequency domain, and the second frequency interval is the interval between the downlink working frequency of the first carrier and the downlink working frequency of the second carrier in the frequency domain; the determining unit is used for determining that the uplink signal of the second carrier interferes with the downlink signal of the first carrier when the first frequency interval between the first carrier and the second carrier is smaller than a preset threshold value, and the scrambling carrier is the second carrier; and the determining unit is used for determining that mutual interference exists between the downlink signal of the first carrier and the downlink signal of the second carrier when the second frequency interval between the first carrier and the second carrier is smaller than the preset threshold value, and Shi Rao carriers are the first carrier and the second carrier.
In one possible implementation manner, the determining unit is configured to determine, as the interference frequency band, a first frequency band between an uplink working frequency minimum value of the second carrier and the first frequency value in a case where the uplink signal of the second carrier interferes with the downlink signal of the first carrier; the processing unit is used for controlling the second carrier wave to stop transmitting the reference signal in the first frequency band; the first frequency value is the sum of the minimum value of the uplink working frequency of the second carrier and the first interference bandwidth, and the first interference bandwidth is the difference between the preset threshold and the first frequency interval.
In one possible implementation manner, the determining unit is configured to determine, as the interference frequency band, a second frequency band between the second frequency value and a maximum value of a downlink operating frequency of the first carrier when there is mutual interference between the downlink signal of the first carrier and the downlink signal of the second carrier and the interfering carrier is the first carrier; the processing unit is used for controlling the first carrier wave to stop transmitting the reference signal in the second frequency band; a determining unit, configured to determine a third frequency band between a minimum value of a downlink working frequency of the second carrier and a third frequency value as an interference frequency band when there is mutual interference between a downlink signal of the first carrier and a downlink signal of the second carrier and the interfering carrier is the second carrier; the processing unit is used for controlling the second carrier wave to stop transmitting the reference signal in the third frequency band; the second frequency value is the difference between the maximum value of the downlink working frequency of the first carrier and the second interference bandwidth, the third frequency value is the sum of the minimum value of the downlink working frequency of the second carrier and the second interference bandwidth, and the second interference bandwidth is the difference between the preset threshold and the second frequency interval.
In one possible implementation, the interference suppression device further includes: an acquisition unit; the acquisition unit is configured to acquire operating frequency information of a first carrier and a second carrier, where the operating frequency information includes: the uplink working frequency of the first carrier, the downlink working frequency of the first carrier, the uplink working frequency of the second carrier and the downlink working frequency of the second carrier.
In a third aspect, an electronic device, comprising: a processor and a memory; wherein the memory is configured to store one or more programs, the one or more programs comprising computer-executable instructions that, when executed by the electronic device, cause the electronic device to perform an interference suppression method as in the first aspect.
In a fourth aspect, there is provided a computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a computer, cause the computer to perform a method of interference suppression as in the first aspect.
The application provides an interference suppression method, device, equipment and storage medium, which are applied to a scene of suppressing signal interference among carriers. In the carrier aggregation or dual-connectivity system, if the working frequencies of the multiple carriers are adjacent or the frequency interval between the carriers is smaller, when the terminal receives and transmits data on the multiple carriers at the same time, the uplink signal or the downlink signal of a certain carrier falls into the receiving frequency band of other carriers, and when the terminal causes signal interference between the multiple carriers, the first carrier and the second carrier which are accessed by the target terminal supporting the carrier aggregation or dual-connectivity function in the carrier aggregation or dual-connectivity system can be determined. Thereby, the corresponding frequency interval between the first carrier wave and the second carrier wave is determined, and the size relation between the frequency interval and the preset threshold value is determined. And when the frequency interval is smaller than a preset threshold value, determining that interference exists between the first carrier and the second carrier, and determining a corresponding Shi Rao carrier between the first carrier and the second carrier. Further determining a corresponding interference frequency band between the first carrier and the second carrier, and controlling the interference carrier to stop transmitting the reference signal in the interference frequency band. By the method, when the target terminal receives and transmits data on a plurality of carriers simultaneously in a carrier aggregation or dual-connection system, the situation that the uplink signal or the downlink signal of one carrier falls into the receiving frequency band of other carriers and signal interference among the multiple carriers is caused by the target terminal is avoided. So that the efficiency of suppressing signal interference between carriers can be improved.
Drawings
Fig. 1 is a schematic structural diagram of an interference suppression system according to an embodiment of the present application;
fig. 2 is a schematic flow chart of an interference suppression method according to an embodiment of the present application;
fig. 3 is a schematic flow chart of a second interference suppression method according to an embodiment of the present application;
fig. 4 is a schematic flow chart III of an interference suppression method according to an embodiment of the present application;
fig. 5 is a schematic flow chart of an interference suppression method according to an embodiment of the present application;
fig. 6 is a schematic flow chart fifth of an interference suppression method provided in an embodiment of the present application;
fig. 7 is a schematic structural diagram of an interference suppression device according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
In the description of the present application, "/" means "or" unless otherwise indicated, for example, a/B may mean a or B. "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. Further, "at least one", "a plurality" means two or more. The terms "first," "second," and the like do not limit the number and order of execution, and the terms "first," "second," and the like do not necessarily differ.
Currently, in a carrier aggregation or dual connectivity system, a terminal may transmit and receive data through a plurality of carriers, wherein the plurality of carriers includes one primary carrier and one or more secondary carriers; the primary carrier is a cell at the initial access of the terminal, and is responsible for radio resource control (Radio Resource Control, RRC) communication with the terminal. The primary carrier is determined at the time of connection establishment, and the secondary carrier is configured through an RRC connection reconfiguration message after initial access for providing additional radio resources.
In a carrier aggregation or dual-connection system, if the working frequencies of multiple carriers are adjacent or the frequency intervals between the carriers are smaller, when a terminal transmits and receives data on multiple carriers at the same time, it is possible that the downlink signal of a certain carrier falls into the receiving frequency band of other carriers to cause interference between uplink and downlink signals, or the uplink signal of a certain carrier falls into the receiving frequency band of other carriers to cause interference between downlink signals, where the interference includes interference between reference signals of different carriers and interference between signals transmitted on traffic channels of different carriers; the interference can come from different traffic channels of the same terminal or from traffic channels of different adjacent terminals; in order to avoid the interference, the interference signals outside the carrier receiving frequency band are generally filtered based on a filter built in the terminal, so that the interference is inhibited; the interference suppression effect depends on the performance of the filter in the terminal, and if a high-performance filter is adopted, the interference suppression effect is better, but the terminal is correspondingly larger in size and higher in cost.
Because of the high requirements of the terminal on volume and cost, the filter performance of the terminal is limited, the suppression effect on the signal interference between adjacent frequency carriers is not ideal, and the service performance of the terminal is affected. For example, in an 800MHz and 900MHz carrier aggregation or dual connection system, the downlink working frequency band of the 800MHz carrier is 869-880MHz, the frequency interval between the downlink working frequency band of the 800MHz carrier and the uplink working frequency band 889-915MHz of the 900MHz carrier is smaller, and when a terminal receives and transmits data on the two frequency bands at the same time, the roll-off characteristic of a terminal filter is not ideal, so that interference between an uplink signal and a downlink signal is caused; that is, the uplink transmission signal of the 900MHz carrier may fall into the downlink receiving frequency band of the 800MHz carrier, which causes the downlink signal of the 800MHz carrier to be interfered, and affects the service performance of the carrier aggregation or the dual-connection terminal.
Aiming at the interference problem of the terminal side in the carrier aggregation or double-connection system, the embodiment of the application provides an interference suppression method which is used for reducing the interference suffered by the terminal in the carrier aggregation or double-connection system, and the interference between the first carrier and the second carrier reference signal is reduced by determining the first carrier and the second carrier with interference, controlling the transmitting mode of the interference carrier reference signal.
The interference suppression method provided by the embodiment of the application can be applied to an interference suppression system. Fig. 1 shows a schematic diagram of a construction of the interference suppression system. As shown in fig. 1, the interference suppression system 20 includes: a first base station 21, a second base station 22 and a target terminal 23. Wherein the first base station 21 is configured to configure at least one carrier (including the first carrier) for the target terminal 23, the at least one carrier may include a primary carrier, and the second base station 22 is configured to configure at least one carrier (including the second carrier) for the target terminal 23. The target terminal 23 may be connected to the first base station 21 and the second base station 22 in a wireless manner, so that the target terminal 23 may implement data transmission through the first base station 21 and the second base station 22.
The interference suppression system 20 may be used for the internet of things, and the interference suppression system 20 may correspond to a plurality of central processing units (central processing unit, CPU), a plurality of memories, a storage device storing a plurality of operating systems, and other hardware.
The first base station 21 and the second base station 22 may be used for the internet of things, may be base stations corresponding to operators, may be connected with the target terminal 23, and provide data transmission services for the target terminal 23, for example, provide data information required for operation processing for the target terminal 23, so that the target terminal 23 provides data processing services for users.
The first base station 21 and the second base station 22 may be any base station in a mobile communication system, for example, may be a base station in a 4G mobile communication system or a 5G mobile communication system, which is not particularly limited in this application.
The target terminal 23 can be used for internet of things, and provides data processing service for users, and is used for interacting with an operator server to realize data processing service required by the users.
An interference suppression method provided in the embodiments of the present application is described below with reference to the accompanying drawings. As shown in fig. 2, the interference suppression method provided in the embodiment of the present application is applied to a base station, and includes S201-S204:
s201, determining a first carrier and a second carrier accessed by a target terminal.
The working frequency of the first carrier is lower than that of the second carrier, and the target terminal is any terminal supporting carrier aggregation or dual-connection function in a carrier aggregation or dual-connection system.
It should be noted that, the base station applied in the embodiment of the present application determines, for the base station where the primary carrier corresponding to the target terminal is located, that is, the first carrier and the second carrier to which the target terminal is connected by the base station that provides the primary carrier for the target terminal, and performs the following steps.
Optionally, the embodiments of the present application are applied to a carrier aggregation or dual connectivity system, and a mobile communication network supporting a carrier aggregation or dual connectivity function, such as a 4G or 5G network; in a carrier aggregation or dual connectivity system, which includes multiple carriers, a base station configures one primary carrier and one or more secondary carriers for each terminal, the primary carrier and the multiple secondary carriers may be located at the same or different base stations.
Optionally, one of the first carrier and the second carrier is a primary carrier of the target terminal, and the other is a secondary carrier of the target terminal; or, the first carrier and the second carrier are both auxiliary carriers of the target terminal. The first carrier and the second carrier are both FDD carriers.
As an example, in conjunction with fig. 1, the carrier aggregation or dual connectivity system (i.e., the interference suppression system) includes a first carrier and a second carrier, where the first carrier is located at a first base station, the second carrier is located at a second base station, and the first carrier is a primary carrier corresponding to the target terminal.
It may be understood that the primary carrier corresponding to the target terminal may be one of the first carrier or the second carrier, or may be another carrier except the first carrier and the second carrier in the carrier aggregation or dual-connectivity system.
S202, determining a corresponding frequency interval between the first carrier and the second carrier, and determining a size relation between the frequency interval and a preset threshold.
Wherein the frequency interval comprises: the first frequency interval is the interval between the downlink working frequency of the first carrier and the uplink working frequency of the second carrier in the frequency domain, and the second frequency interval is the interval between the downlink working frequency of the first carrier and the downlink working frequency of the second carrier in the frequency domain.
The first frequency interval may be understood as an uplink and downlink frequency interval, and the second frequency interval may be understood as a downlink frequency interval.
And S203, when the frequency interval is smaller than a preset threshold value, determining that interference exists between the first carrier and the second carrier, and determining a corresponding Shi Rao carrier between the first carrier and the second carrier.
Wherein the Shi Rao carrier is at least one of the first carrier and the second carrier.
In one design, as shown in fig. 3, in an interference suppression method provided in the embodiment of the present application, the method in step S203 may specifically include S301 to S302:
s301, when the first frequency interval between the first carrier and the second carrier is smaller than a preset threshold, determining that the uplink signal of the second carrier interferes with the downlink signal of the first carrier.
The Shi Rao carrier is a second carrier, and the disturbed carrier is a first carrier.
Optionally, the preset threshold may be preset at the base station side where each carrier is located, and the preset threshold may be determined according to simulation or test; specifically, under the condition that the interference value between two carriers (for example, a first carrier and a second carrier) is smaller than a preset interference threshold, determining the minimum value of the frequency interval between the two carriers as the preset threshold between the two carriers; the preset threshold value between two carriers can be determined by the interference value between the carriers, and the interference value between the carriers can be defined as the interference signal strength of the scrambling carrier received by the scrambling carrier.
For example, the preset threshold is 10MHz, the first carrier is an 800MHz carrier, the second carrier is a 900MHz carrier, the downlink operating frequency of the first carrier is 869-880MHz, the uplink operating frequency of the second carrier is 889-915MHz, the interval between the downlink operating frequency of the first carrier and the downlink operating frequency of the second carrier in the frequency domain, that is, the first frequency interval is 889-880=9 MHz, and is smaller than the preset threshold 10MHz, it is determined that the uplink signal of the second carrier interferes with the downlink signal of the first carrier, and the interfering carrier is the second carrier.
S302, when the second frequency interval between the first carrier and the second carrier is smaller than a preset threshold, the mutual interference between the downlink signal of the first carrier and the downlink signal of the second carrier is determined.
Wherein, shi Rao carrier is first carrier and second carrier.
Optionally, when the scrambling carrier is the first carrier, the scrambling carrier is the second carrier, and when the Shi Rao carrier is the second carrier, the scrambling carrier is the first carrier.
In the embodiment of the application, a frequency interval between carriers is defined, wherein the frequency interval comprises a first frequency interval and a second frequency interval, and the carrier with interference is identified through comparison between the frequency interval and a preset threshold value; specifically, if the first frequency interval between the two carriers is smaller than a preset threshold, the situation that the uplink signal of the second carrier will interfere with the downlink signal of the first carrier exists between the two carriers; if the second frequency interval between the two carriers is smaller than the preset threshold value, the situation of mutual interference between the downlink signal of the first carrier and the downlink signal of the second carrier exists between the two carriers.
S204, determining the corresponding interference frequency band between the first carrier and the second carrier, and controlling the interference carrier to stop transmitting the reference signal in the interference frequency band.
Wherein the reference signal comprises at least one of: cell Reference signals (Cell Reference Signal, CRS), channel state information Reference signals (Channel State Information-Reference Signal, CSI-RS), time Reference signals (Time Reference Signal, TRS), positioning Reference signals (Positioning Reference Signal, PRS), and the like.
Optionally, the base station where the main carrier corresponding to the target terminal is located sends an interference indication message to the base station where the Shi Rao carrier is located, and the interference indication message carries the identifier of the interfering carrier and the information of the corresponding interference frequency band, so as to indicate that the interfering carrier stops transmitting the reference signal in the interference frequency band.
If the primary carrier and the scrambling carrier corresponding to the target terminal are the same carrier, it is unnecessary to send an interference instruction message between the base stations.
The embodiment of the application provides an interference suppression method, in a carrier aggregation or dual-connection system, if working frequencies of a plurality of carriers are adjacent or frequency intervals among the carriers are smaller, when a terminal simultaneously transmits and receives data on the plurality of carriers, an uplink signal or a downlink signal of a certain carrier falls into a receiving frequency band of other carriers, and when signal interference among the plurality of carriers occurs to the terminal, a first carrier and a second carrier which are accessed by a target terminal supporting the carrier aggregation or dual-connection function in the carrier aggregation or dual-connection system can be determined. Thereby, the corresponding frequency interval between the first carrier wave and the second carrier wave is determined, and the size relation between the frequency interval and the preset threshold value is determined. And when the frequency interval is smaller than a preset threshold value, determining that interference exists between the first carrier and the second carrier, and determining a corresponding Shi Rao carrier between the first carrier and the second carrier. Further determining a corresponding interference frequency band between the first carrier and the second carrier, and controlling the interference carrier to stop transmitting the reference signal in the interference frequency band. By the method, when the target terminal receives and transmits data on a plurality of carriers simultaneously in a carrier aggregation or dual-connection system, the situation that the uplink signal or the downlink signal of one carrier falls into the receiving frequency band of other carriers and signal interference among the multiple carriers is caused by the target terminal is avoided. So that the efficiency of suppressing signal interference between carriers can be improved.
In one design, as shown in fig. 4, in the interference suppression method provided in the embodiment of the present application, the method in step S204 may specifically include S401:
s401, under the condition that the uplink signal of the second carrier interferes with the downlink signal of the first carrier, determining a first frequency band between the minimum value of the uplink working frequency of the second carrier and the first frequency value as an interference frequency band, and controlling the second carrier to stop transmitting the reference signal in the first frequency band.
The first frequency value is the sum of the minimum value of the uplink working frequency of the second carrier and the first interference bandwidth, and the first interference bandwidth is the difference between the preset threshold and the first frequency interval.
In one design, as shown in fig. 5, in an interference suppression method provided in the embodiment of the present application, the method in step S204 may specifically include S402-S403:
s402, when mutual interference exists between the downlink signal of the first carrier and the downlink signal of the second carrier, and the scrambling carrier is the first carrier, determining a second frequency band between the second frequency value and the maximum value of the downlink working frequency of the first carrier as an interference frequency band, and controlling the first carrier to stop transmitting the reference signal in the second frequency band.
S403, when mutual interference exists between the downlink signal of the first carrier and the downlink signal of the second carrier, and the scrambling carrier is the second carrier, determining a third frequency band between the minimum value of the downlink working frequency of the second carrier and the third frequency value as an interference frequency band, and controlling the second carrier to stop transmitting the reference signal in the third frequency band.
The second frequency value is the difference between the maximum value of the downlink working frequency of the first carrier and the second interference bandwidth, the third frequency value is the sum of the minimum value of the downlink working frequency of the second carrier and the second interference bandwidth, and the second interference bandwidth is the difference between the preset threshold and the second frequency interval.
In the embodiment of the application, whether interference exists between the first carrier and the second carrier is determined by determining a first frequency interval and a second frequency interval between the first carrier and the second carrier; when the inter-carrier interference exists, further determining an interference frequency band and a Shi Rao carrier; the interference frequency band is located in the working frequency range of the interference carrier, and can be determined according to the working frequencies of the interfered carrier and the interference carrier and a preset threshold, and when the isolation requirement is not met between the spectrum resources in the interference frequency band of the interference carrier and the spectrum resources in the working frequency band of the interfered carrier (i.e. the frequency interval between the carriers is smaller than the preset threshold), the signal transmitted by the Shi Rao carrier will interfere with the interfered carrier. According to the method and the device, the frequency spectrum resource which does not meet the isolation requirement can be determined by determining the interference frequency band, and then the interference between the first carrier and the second carrier reference signal is reduced by inhibiting the interference carrier from transmitting the reference signal on the frequency spectrum resource.
In one design, as shown in fig. 6, in the interference suppression method provided in the embodiment of the present application, before the method in step S202, S501 may specifically further include:
s501, working frequency information of a first carrier wave and a second carrier wave is obtained.
Wherein the operating frequency information includes: the uplink working frequency of the first carrier, the downlink working frequency of the first carrier, the uplink working frequency of the second carrier and the downlink working frequency of the second carrier.
Optionally, the working frequency information of the first carrier and the second carrier may be preset in each base station in the carrier aggregation or dual-connection system; or, the information interaction is carried out between the base station and the base station where the first carrier and the second carrier are located, so that the working frequency information of the first carrier and the second carrier is obtained.
The base station where the main carrier corresponding to the target terminal is located sends a working frequency request message to the base station where the first carrier and the second carrier are located respectively, so as to obtain working frequencies of the first carrier and the second carrier, wherein the request message carries the identifications of the first carrier and the second carrier; and the base stations where the first carrier and the second carrier are located respectively return working frequency indication messages, wherein the working frequency indication messages carry the identifications of the first carrier and the second carrier and the working frequency information.
If the primary carrier corresponding to the target terminal is the same carrier as the first carrier or the second carrier, the operating frequency request message and the operating frequency indication message do not need to be sent between the base stations.
By combining the steps, the embodiment of the application determines the first frequency interval and the second frequency interval between the first carrier and the second carrier by acquiring the working frequency information of the first carrier and the second carrier, thereby determining whether interference exists between the first carrier and the second carrier; when the inter-carrier interference exists, further determining an interference frequency band and a Shi Rao carrier; by determining the interference frequency band, the frequency spectrum resource which does not meet the isolation requirement can be determined, and further, the interference between the first carrier and the second carrier reference signal is reduced by inhibiting the interference carrier from transmitting the reference signal on the frequency spectrum resource, so that the interference suffered by the terminal in the carrier aggregation or dual-connection system is reduced.
The foregoing description of the solution provided in the embodiments of the present application has been mainly presented in terms of a method. To achieve the above functions, it includes corresponding hardware structures and/or software modules that perform the respective functions. Those of skill in the art will readily appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware 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 application.
The embodiment of the present application may divide a functional module of an interference suppression device according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated modules may be implemented in hardware or in software functional modules. Optionally, the division of the modules in the embodiments of the present application is schematic, which is merely a logic function division, and other division manners may be actually implemented.
Fig. 7 is a schematic structural diagram of an interference suppression device according to an embodiment of the present application. As shown in fig. 7, an interference suppression device 40 is used to improve the efficiency of suppressing signal interference between carriers, for example, to perform an interference suppression method as shown in fig. 2. The interference suppression device 40 includes: a determination unit 401, a processing unit 402, and an acquisition unit 403.
A determining unit 401, configured to determine a first carrier and a second carrier to which a target terminal is connected, where a working frequency of the first carrier is lower than a working frequency of the second carrier, and the target terminal is any terminal supporting a carrier aggregation or dual-connection function in a carrier aggregation or dual-connection system;
A determining unit 401, configured to determine a frequency interval corresponding to the first carrier and the second carrier, and determine a magnitude relation between the frequency interval and a preset threshold;
a determining unit 401, configured to determine that, when the frequency interval is determined to be less than a preset threshold, interference exists between the first carrier and the second carrier, and determine a Shi Rao carrier corresponding to the first carrier and the second carrier, where the Shi Rao carrier is at least one of the first carrier and the second carrier;
a determining unit 401, configured to determine an interference frequency band corresponding to the first carrier and the second carrier;
a processing unit 402, configured to control the interfering carrier to stop transmitting the reference signal in the interference frequency band, where the reference signal includes at least one of the following: cell reference signal CRS, channel state information reference signal CSI-RS, time reference signal TRS, positioning reference signal PRS.
In one possible implementation, the frequency interval includes: the first frequency interval is the interval between the downlink working frequency of the first carrier and the uplink working frequency of the second carrier in the frequency domain, and the second frequency interval is the interval between the downlink working frequency of the first carrier and the downlink working frequency of the second carrier in the frequency domain; in the interference suppression device 40 provided in the embodiment of the present application, the determining unit 401 is configured to determine that, when it is determined that the first frequency interval between the first carrier and the second carrier is smaller than the preset threshold, an uplink signal of the second carrier interferes with a downlink signal of the first carrier, and the interfering carrier is the second carrier;
The determining unit 401 is configured to determine that mutual interference exists between the downlink signal of the first carrier and the downlink signal of the second carrier when it is determined that the second frequency interval between the first carrier and the second carrier is smaller than the preset threshold, where the Shi Rao carrier is the first carrier and the second carrier.
In a possible implementation manner, in the interference suppression device 40 provided in the embodiment of the present application, the determining unit 401 is configured to determine, as the interference frequency band, a first frequency band between the minimum value of the uplink operating frequency of the second carrier and the first frequency value in a case that the uplink signal of the second carrier interferes with the downlink signal of the first carrier;
a processing unit 402, configured to control the second carrier to stop transmitting the reference signal in the first frequency band; the first frequency value is the sum of the minimum value of the uplink working frequency of the second carrier and the first interference bandwidth, and the first interference bandwidth is the difference between the preset threshold and the first frequency interval.
In a possible implementation manner, in the interference suppression device 40 provided in the embodiment of the present application, the determining unit 401 is configured to determine, as the interference frequency band, a second frequency band between the second frequency value and the maximum value of the downlink working frequency of the first carrier when there is mutual interference between the downlink signal of the first carrier and the downlink signal of the second carrier and the interfering carrier is the first carrier;
A processing unit 402, configured to control the first carrier to stop transmitting the reference signal in the second frequency band;
a determining unit 401, configured to determine a third frequency band between a minimum value of a downlink working frequency of the second carrier and a third frequency value as an interference frequency band when there is mutual interference between the downlink signal of the first carrier and the downlink signal of the second carrier and the interference carrier is the second carrier;
a processing unit 402, configured to control the second carrier to stop transmitting the reference signal in the third frequency band; the second frequency value is the difference between the maximum value of the downlink working frequency of the first carrier and the second interference bandwidth, the third frequency value is the sum of the minimum value of the downlink working frequency of the second carrier and the second interference bandwidth, and the second interference bandwidth is the difference between the preset threshold and the second frequency interval.
In a possible implementation manner, in the interference suppression device 40 provided in the embodiment of the present application, the obtaining unit 403 is configured to obtain operating frequency information of the first carrier and the second carrier, where the operating frequency information includes: the uplink working frequency of the first carrier, the downlink working frequency of the first carrier, the uplink working frequency of the second carrier and the downlink working frequency of the second carrier.
In the case of implementing the functions of the integrated modules in the form of hardware, another possible structural schematic diagram of the electronic device involved in the foregoing embodiment is provided in the embodiments of the present application. As shown in fig. 8, an electronic device 60 is provided for improving the efficiency of suppressing signal interference between carriers, for example, for performing an interference suppression method as shown in fig. 2. The electronic device 60 comprises a processor 601, a memory 602 and a bus 603. The processor 601 and the memory 602 may be connected by a bus 603.
The processor 601 is a control center of the communication device, and may be one processor or a collective term of a plurality of processing elements. For example, the processor 601 may be a general-purpose central processing unit (central processing unit, CPU), or may be another general-purpose processor. Wherein the general purpose processor may be a microprocessor or any conventional processor or the like.
As one example, processor 601 may include one or more CPUs, such as CPU 0 and CPU 1 shown in fig. 8.
The memory 602 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory, RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), magnetic disk storage or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
As a possible implementation, the memory 602 may exist separately from the processor 601, and the memory 602 may be connected to the processor 601 through the bus 603 for storing instructions or program codes. The processor 601, when calling and executing instructions or program code stored in the memory 602, is capable of implementing an interference suppression method provided in the embodiments of the present application.
In another possible implementation, the memory 602 may also be integrated with the processor 601.
Bus 603 may be an industry standard architecture (Industry Standard Architecture, ISA) bus, a peripheral component interconnect (Peripheral Component Interconnect, PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, among others. The bus may be classified as an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in fig. 8, but not only one bus or one type of bus.
It should be noted that the structure shown in fig. 8 does not constitute a limitation of the electronic device 60. The electronic device 60 may include more or fewer components than shown in fig. 8, or may combine certain components or a different arrangement of components.
As an example, in connection with fig. 7, the determining unit 401, the processing unit 402, and the acquiring unit 403 in the electronic device realize the same functions as those of the processor 601 in fig. 8.
Optionally, as shown in fig. 8, the electronic device 60 provided in the embodiment of the present application may further include a communication interface 604.
Communication interface 604 for connecting with other devices via a communication network. The communication network may be an ethernet, a radio access network, a wireless local area network (wireless local area networks, WLAN), etc. The communication interface 604 may include a receiving unit for receiving data and a transmitting unit for transmitting data.
In one design, the electronic device provided in the embodiments of the present application may further include a communication interface integrated into the processor.
From the above description of embodiments, it will be apparent to those skilled in the art that the foregoing functional unit divisions are merely illustrative for convenience and brevity of description. In practical applications, the above-mentioned function allocation may be performed by different functional units, i.e. the internal structure of the device is divided into different functional units, as needed, to perform all or part of the functions described above. The specific working processes of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which are not described herein.
The embodiment of the application further provides a computer readable storage medium, in which instructions are stored, and when the computer executes the instructions, the computer executes each step in the method flow shown in the method embodiment.
Embodiments of the present application provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform a method of interference suppression in the method embodiments described above.
The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: electrical connections having one or more wires, portable computer diskette, hard disk. Random access Memory (Random Access Memory, RAM), read-Only Memory (ROM), erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), registers, a hard disk, an optical fiber, a portable compact disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof, or any other form of computer-readable storage medium known in the art.
An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an application specific integrated circuit (Application Specific Integrated Circuit, ASIC).
In the context of the present application, a computer-readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
Since the electronic device, the computer readable storage medium, and the computer program product in the embodiments of the present application may be applied to the above-mentioned method, the technical effects that can be obtained by the electronic device, the computer readable storage medium, and the computer program product may also refer to the above-mentioned method embodiments, and the embodiments of the present application are not repeated herein.
The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the protection scope of the present application.
Claims (10)
1. A method of interference suppression, the method comprising:
Determining a first carrier and a second carrier which are accessed by a target terminal, wherein the working frequency of the first carrier is lower than that of the second carrier, and the target terminal is any terminal supporting carrier aggregation or dual-connection function in a carrier aggregation or dual-connection system;
determining a corresponding frequency interval between the first carrier wave and the second carrier wave, and determining a size relation between the frequency interval and a preset threshold value;
when the frequency interval is determined to be smaller than the preset threshold value, determining that interference exists between the first carrier and the second carrier, and determining a Shi Rao carrier corresponding to the first carrier and the second carrier, wherein the scrambling carrier is at least one of the first carrier and the second carrier;
determining a corresponding interference frequency band between the first carrier and the second carrier, and controlling the interference carrier to stop transmitting a reference signal in the interference frequency band, wherein the reference signal comprises at least one of the following: cell reference signal CRS, channel state information reference signal CSI-RS, time reference signal TRS, positioning reference signal PRS;
the frequency interval includes: a first frequency interval and a second frequency interval, wherein the first frequency interval is an interval between a downlink working frequency of the first carrier and an uplink working frequency of the second carrier in a frequency domain, and the second frequency interval is an interval between the downlink working frequency of the first carrier and the downlink working frequency of the second carrier in the frequency domain;
And when the frequency interval is determined to be smaller than the preset threshold, determining that interference exists between the first carrier and the second carrier, and determining a corresponding Shi Rao carrier between the first carrier and the second carrier, including:
when the first frequency interval between the first carrier and the second carrier is smaller than the preset threshold, determining that an uplink signal of the second carrier interferes with a downlink signal of the first carrier, wherein the scrambling carrier is the second carrier;
and when the second frequency interval between the first carrier and the second carrier is smaller than the preset threshold, determining that mutual interference exists between the downlink signal of the first carrier and the downlink signal of the second carrier, wherein the scrambling carrier is the first carrier and the second carrier.
2. The method of claim 1, wherein the determining the corresponding interference frequency band between the first carrier and the second carrier and controlling the interfering carrier to cease transmitting reference signals within the interference frequency band comprises:
under the condition that the uplink signal of the second carrier interferes with the downlink signal of the first carrier, determining a first frequency band between the minimum value of the uplink working frequency of the second carrier and a first frequency value as the interference frequency band, and controlling the second carrier to stop transmitting a reference signal in the first frequency band;
The first frequency value is the sum of the minimum value of the uplink working frequency of the second carrier and a first interference bandwidth, and the first interference bandwidth is the difference between the preset threshold and the first frequency interval.
3. The method of claim 1, wherein the determining the corresponding interference frequency band between the first carrier and the second carrier and controlling the interfering carrier to cease transmitting reference signals within the interference frequency band comprises:
when mutual interference exists between the downlink signal of the first carrier and the downlink signal of the second carrier, and the scrambling carrier is the first carrier, determining a second frequency band between a second frequency value and the maximum value of the downlink working frequency of the first carrier as the interference frequency band, and controlling the first carrier to stop transmitting a reference signal in the second frequency band;
when mutual interference exists between the downlink signal of the first carrier and the downlink signal of the second carrier, and the scrambling carrier is the second carrier, determining a third frequency band between the minimum value of the downlink working frequency of the second carrier and a third frequency value as the interference frequency band, and controlling the second carrier to stop transmitting a reference signal in the third frequency band;
The second frequency value is a difference between a maximum value of the downlink working frequency of the first carrier and a second interference bandwidth, the third frequency value is a sum of a minimum value of the downlink working frequency of the second carrier and the second interference bandwidth, and the second interference bandwidth is a difference between the preset threshold and the second frequency interval.
4. The method of claim 1, wherein prior to determining the corresponding frequency interval between the first carrier and the second carrier and determining the magnitude relationship of the frequency interval to a preset threshold, the method further comprises:
acquiring working frequency information of the first carrier wave and the second carrier wave, wherein the working frequency information comprises: the uplink working frequency of the first carrier, the downlink working frequency of the first carrier, the uplink working frequency of the second carrier and the downlink working frequency of the second carrier.
5. An interference suppression device, characterized in that the interference suppression device comprises: a determination unit and a processing unit;
the determining unit is configured to determine a first carrier and a second carrier that are accessed by a target terminal, where the working frequency of the first carrier is lower than the working frequency of the second carrier, and the target terminal is any terminal supporting a carrier aggregation or dual-connection function in a carrier aggregation or dual-connection system;
The determining unit is used for determining a corresponding frequency interval between the first carrier and the second carrier and determining a size relation between the frequency interval and a preset threshold value;
the determining unit is configured to determine that interference exists between the first carrier and the second carrier when the frequency interval is determined to be smaller than the preset threshold, and determine a corresponding Shi Rao carrier between the first carrier and the second carrier, where the interference carrier is at least one of the first carrier and the second carrier;
the determining unit is configured to determine an interference frequency band corresponding to the first carrier and the second carrier;
the processing unit is configured to control the interfering carrier to stop transmitting a reference signal in the interference frequency band, where the reference signal includes at least one of the following: cell reference signal CRS, channel state information reference signal CSI-RS, time reference signal TRS, positioning reference signal PRS;
the frequency interval includes: a first frequency interval and a second frequency interval, wherein the first frequency interval is an interval between a downlink working frequency of the first carrier and an uplink working frequency of the second carrier in a frequency domain, and the second frequency interval is an interval between the downlink working frequency of the first carrier and the downlink working frequency of the second carrier in the frequency domain;
The determining unit is configured to determine that, when it is determined that the first frequency interval between the first carrier and the second carrier is smaller than the preset threshold, an uplink signal of the second carrier interferes with a downlink signal of the first carrier, where the scrambling carrier is the second carrier;
the determining unit is configured to determine that mutual interference exists between a downlink signal of the first carrier and a downlink signal of the second carrier when it is determined that the second frequency interval between the first carrier and the second carrier is smaller than the preset threshold, where the scrambling carrier is the first carrier and the second carrier.
6. The interference suppression device according to claim 5, wherein the determining unit is configured to determine, as the interference frequency band, a first frequency band between an uplink operation frequency minimum value of the second carrier and a first frequency value in a case where an uplink signal of the second carrier interferes with a downlink signal of the first carrier;
the processing unit is used for controlling the second carrier to stop transmitting the reference signal in the first frequency band;
the first frequency value is the sum of the minimum value of the uplink working frequency of the second carrier and a first interference bandwidth, and the first interference bandwidth is the difference between the preset threshold and the first frequency interval.
7. The interference suppression device according to claim 5, wherein the determining unit is configured to determine, as the interference frequency band, a second frequency band between a second frequency value and a maximum value of a downlink operation frequency of the first carrier when there is mutual interference between the downlink signal of the first carrier and the downlink signal of the second carrier and the interfering carrier is the first carrier;
the processing unit is used for controlling the first carrier wave to stop transmitting the reference signal in the second frequency band;
the determining unit is configured to determine, as the interference frequency band, a third frequency band between a minimum value of a downlink working frequency of the second carrier and a third frequency value when mutual interference exists between a downlink signal of the first carrier and a downlink signal of the second carrier and the scrambling carrier is the second carrier;
the processing unit is configured to control the second carrier to stop transmitting a reference signal in the third frequency band;
the second frequency value is a difference between a maximum value of the downlink working frequency of the first carrier and a second interference bandwidth, the third frequency value is a sum of a minimum value of the downlink working frequency of the second carrier and the second interference bandwidth, and the second interference bandwidth is a difference between the preset threshold and the second frequency interval.
8. The interference suppression apparatus according to claim 5, further comprising: an acquisition unit;
the acquiring unit is configured to acquire operating frequency information of the first carrier and the second carrier, where the operating frequency information includes: the uplink working frequency of the first carrier, the downlink working frequency of the first carrier, the uplink working frequency of the second carrier and the downlink working frequency of the second carrier.
9. An electronic device, comprising: a processor and a memory; wherein the memory is configured to store one or more programs, the one or more programs comprising computer-executable instructions that, when executed by the electronic device, cause the electronic device to perform an interference suppression method as claimed in any one of claims 1-4.
10. A computer readable storage medium storing one or more programs, wherein the one or more programs comprise instructions, which when executed by a computer, cause the computer to perform an interference suppression method according to any one of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211124638.7A CN115549880B (en) | 2022-09-15 | 2022-09-15 | Interference suppression method, device, equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211124638.7A CN115549880B (en) | 2022-09-15 | 2022-09-15 | Interference suppression method, device, equipment and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115549880A CN115549880A (en) | 2022-12-30 |
| CN115549880B true CN115549880B (en) | 2024-04-12 |
Family
ID=84727485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211124638.7A Active CN115549880B (en) | 2022-09-15 | 2022-09-15 | Interference suppression method, device, equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115549880B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102273124A (en) * | 2009-01-07 | 2011-12-07 | 高通股份有限公司 | Carrier reuse in a multicarrier wireless communication environment |
| CN102307086A (en) * | 2011-08-19 | 2012-01-04 | 中兴通讯股份有限公司 | Carrier-aggregation-technology-based hybrid communication method and communication terminal |
| CN102378189A (en) * | 2010-08-12 | 2012-03-14 | 鼎桥通信技术有限公司 | Method, equipment and system for switching user equipment between master carrier and slave carrier in cell |
| CN102932930A (en) * | 2011-08-10 | 2013-02-13 | 华为技术有限公司 | Resource scheduling method, wireless access equipment and communication system |
| CN103209420A (en) * | 2012-01-12 | 2013-07-17 | 株式会社Ntt都科摩 | Communication processing method and first base station |
| WO2016046332A1 (en) * | 2014-09-24 | 2016-03-31 | Vodafone Ip Licensing Limited | Inter-mode carrier aggregation |
| CN109392142A (en) * | 2017-08-11 | 2019-02-26 | 华为技术有限公司 | Carrier switch and method for sending information and device |
| CN109792263A (en) * | 2016-09-27 | 2019-05-21 | 华为技术有限公司 | Data transmission method, device and equipment |
| CN110087325A (en) * | 2019-05-31 | 2019-08-02 | 中国联合网络通信集团有限公司 | A kind of method and device reducing harmonic wave interference |
| CN110430594A (en) * | 2019-08-12 | 2019-11-08 | 展讯通信（上海）有限公司 | The measurement method and equipment of unlicensed frequencies |
| WO2021022391A1 (en) * | 2019-08-02 | 2021-02-11 | Qualcomm Incorporated | Inter-numerologies interference avoidance for long term evolution (lte) and 5g new radio (nr) spectrum sharing |
| WO2021026845A1 (en) * | 2019-08-14 | 2021-02-18 | Oppo广东移动通信有限公司 | Communication method and communication apparatus |
| CN112636863A (en) * | 2020-12-22 | 2021-04-09 | 中国联合网络通信集团有限公司 | Anti-interference communication method, device and equipment |
| CN113141653A (en) * | 2020-01-17 | 2021-07-20 | 上海华为技术有限公司 | Passive intermodulation interference suppression method and related equipment |
| CN114828036A (en) * | 2022-05-30 | 2022-07-29 | 中国联合网络通信集团有限公司 | Interference management method, device and storage medium |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3085138B1 (en) * | 2013-12-19 | 2019-10-09 | Telefonaktiebolaget LM Ericsson (publ) | Configuration of cellular network nodes |
| CN111436072B (en) * | 2019-02-01 | 2021-08-10 | 维沃移动通信有限公司 | Measurement method, terminal, measurement indication method and network side equipment |
-
2022
- 2022-09-15 CN CN202211124638.7A patent/CN115549880B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102273124A (en) * | 2009-01-07 | 2011-12-07 | 高通股份有限公司 | Carrier reuse in a multicarrier wireless communication environment |
| CN102378189A (en) * | 2010-08-12 | 2012-03-14 | 鼎桥通信技术有限公司 | Method, equipment and system for switching user equipment between master carrier and slave carrier in cell |
| CN102932930A (en) * | 2011-08-10 | 2013-02-13 | 华为技术有限公司 | Resource scheduling method, wireless access equipment and communication system |
| CN102307086A (en) * | 2011-08-19 | 2012-01-04 | 中兴通讯股份有限公司 | Carrier-aggregation-technology-based hybrid communication method and communication terminal |
| CN103209420A (en) * | 2012-01-12 | 2013-07-17 | 株式会社Ntt都科摩 | Communication processing method and first base station |
| WO2016046332A1 (en) * | 2014-09-24 | 2016-03-31 | Vodafone Ip Licensing Limited | Inter-mode carrier aggregation |
| CN109792263A (en) * | 2016-09-27 | 2019-05-21 | 华为技术有限公司 | Data transmission method, device and equipment |
| CN109392142A (en) * | 2017-08-11 | 2019-02-26 | 华为技术有限公司 | Carrier switch and method for sending information and device |
| CN110087325A (en) * | 2019-05-31 | 2019-08-02 | 中国联合网络通信集团有限公司 | A kind of method and device reducing harmonic wave interference |
| WO2021022391A1 (en) * | 2019-08-02 | 2021-02-11 | Qualcomm Incorporated | Inter-numerologies interference avoidance for long term evolution (lte) and 5g new radio (nr) spectrum sharing |
| CN110430594A (en) * | 2019-08-12 | 2019-11-08 | 展讯通信（上海）有限公司 | The measurement method and equipment of unlicensed frequencies |
| WO2021026845A1 (en) * | 2019-08-14 | 2021-02-18 | Oppo广东移动通信有限公司 | Communication method and communication apparatus |
| CN113141653A (en) * | 2020-01-17 | 2021-07-20 | 上海华为技术有限公司 | Passive intermodulation interference suppression method and related equipment |
| CN112636863A (en) * | 2020-12-22 | 2021-04-09 | 中国联合网络通信集团有限公司 | Anti-interference communication method, device and equipment |
| CN114828036A (en) * | 2022-05-30 | 2022-07-29 | 中国联合网络通信集团有限公司 | Interference management method, device and storage medium |
Non-Patent Citations (4)
| Title |
|---|
| "Enhanced component carrier selection strategy for LTE-A under carrier aggregation mode";Imen Ben Chaabane et al;《2015 International Wireless Communications and Mobile Computing Conference (IWCMC)》;20151005;全文 * |
| Samsung.R1-084173 "Furhter discussion on Inter-Cell Interference Mitigation Through Limited Coordination".3GPP tsg_ran\WG1_RL1.2008,(第TSGR1_55期),全文. * |
| 基于变换域和时域联合处理的雷达同频干扰抑制方法;郇浩;陶然;李元硕;王越;王桂英;;电子与信息学报;20121215(第12期);全文 * |
| 用于LTE-A中继系统的准动态频率资源划分方法;苏啸尘;孙恩昌;于非;张延华;;中国电子科学研究院学报;20130820(第04期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115549880A (en) | 2022-12-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108811083B (en) | Paging indication transmission method and device | |
| WO2022160306A1 (en) | Wireless communication apparatus and antenna switching method therefor | |
| CN110731113B (en) | Data transmission method, device and storage medium | |
| CN107947842B (en) | Beam forming method and device | |
| US20230217474A1 (en) | Supplementary Uplink Sul Configuration Method and Apparatus | |
| CN115549880B (en) | Interference suppression method, device, equipment and storage medium | |
| CN104168595A (en) | Multipoint cooperative transmission method, device and system | |
| CN114071641A (en) | Cell access prohibition indication method and related device | |
| CN111182633B (en) | Communication method and device | |
| CN114071682B (en) | Power selection method and device for distributed network architecture | |
| CN102958064A (en) | Method, system and device for reducing interference in carrier aggregation system | |
| CN113472506B (en) | Downlink beam management method, base station and terminal | |
| CN104429123A (en) | Method and device for notifying downlink power allocation parameters | |
| CN110138535B (en) | Data transmission method and device | |
| CN112118580A (en) | Spectrum resource allocation method and device | |
| CN114258049B (en) | Passive intermodulation interference suppression method, terminal, base station and storage medium | |
| CN115551049A (en) | Interference suppression method, device, equipment and storage medium | |
| CN111935751B (en) | Configuration method, base station and computer storage medium | |
| US20240205900A1 (en) | Communication method and communication apparatus | |
| CN115942340B (en) | Communication method and device | |
| CN112333811B (en) | Method and device for configuring sending power of synchronization signal/physical broadcast channel block | |
| CN116193599A (en) | Communication method and device | |
| CN116321207A (en) | Communication method and device | |
| CN117716758A (en) | Communication method, terminal equipment and network equipment | |
| CN114258049A (en) | Passive intermodulation interference suppression method, terminal, base station and 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 |