CN114096012A - Boundary interference elimination method, device, storage medium and electronic equipment - Google Patents

Boundary interference elimination method, device, storage medium and electronic equipment Download PDF

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Publication number
CN114096012A
CN114096012A CN202111375810.1A CN202111375810A CN114096012A CN 114096012 A CN114096012 A CN 114096012A CN 202111375810 A CN202111375810 A CN 202111375810A CN 114096012 A CN114096012 A CN 114096012A
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rate matching
matching map
terminal
target
map
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周阅天
胡春雷
谢伟良
许晓航
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China Telecom Corp Ltd
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China Telecom Corp Ltd
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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H04L1/0013—Rate matching, e.g. puncturing or repetition of code symbols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific 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
    • 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
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • 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
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • 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
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The disclosure provides a boundary interference elimination method, a boundary interference elimination device, a storage medium and electronic equipment, which are used for solving the problem of LNR boundary interference in the related art. The method for eliminating the boundary interference comprises the following steps: monitoring the signal to interference plus noise ratio (SINR) of a terminal; acquiring cell common reference signal CRS interference information of the terminal in response to monitoring that the SINR meets a preset condition; determining information of a target rate matching map according to the CRS interference information, wherein the target rate matching map indicates a target position of unavailable time-frequency resources; and decoding the received signal from the network side equipment by using the target rate matching map, wherein the decoding is not performed at the target position. The embodiment of the disclosure can effectively reduce LNR boundary interference.

Description

Boundary interference elimination method, device, storage medium and electronic equipment
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a method and an apparatus for eliminating boundary interference, a storage medium, and an electronic device.
Background
Currently, in order to balance the 4G (4th Generation Mobile Communication Technology)/5G (5th Generation Mobile Communication Technology) capacity requirement, various technical solutions are adopted on the 2.1 band 40M bandwidth to achieve the 5G basic coverage and to address the existing network 4G capacity increase requirement. For example, 20M LTE (Long Term Evolution) +20MLTE, 20M LTE +20M NR (New Radio, New air interface), 40M NR, 40M DSS (Dynamic Spectrum Sharing). The problem of LTE interference NR arises at the interface of these networking solutions. The possible boundary interference combinations can be summarized into 3 classes as shown in fig. 1, where 40M NR is adjacent to one 20M LTE frequency point, 40M NR is adjacent to two 20M LTE frequency points, and 20M NR is adjacent to 20M LTE. Since LTE CRS (Cell Reference Signal) is continuously transmitted, LNR interference (referred to as LTE interference NR) is still severe even if LTE load is low, which may result in a 5G rate that may be lower than 4G at the LNR boundary. In order to ensure the user experience of 5G, the problem of LNR boundary interference is often solved by using two-turn isolation zones at present, but the isolation zones can increase the workload of frequency clearing of a base station, and may also cause NR discontinuous coverage, and some areas cannot plan the isolation zones.
Disclosure of Invention
The present disclosure provides a method, an apparatus, a storage medium, and an electronic device for eliminating boundary interference, which at least to some extent overcomes the problem of LNR boundary interference in the related art.
According to a first aspect of the present disclosure, there is provided a boundary interference cancellation method applied to a terminal, including: monitoring the signal to interference plus noise ratio (SINR) of the terminal; acquiring cell common reference signal CRS interference information of the terminal in response to the fact that the monitored SINR meets a preset condition; determining information of a target rate matching map according to the CRS interference information, wherein the target rate matching map indicates a target position of unavailable time-frequency resources; and decoding the received signal from the network side equipment by using the target rate matching map, wherein the decoding is not performed at the target position.
Optionally, the terminal stores in advance numbers of a plurality of different rate matching maps, target positions of unavailable time-frequency resources indicated in the different rate matching maps are different, the CRS interference information includes a position interfered by a CRS or indicates that the terminal has no CRS interference, and determining information of the target rate matching map according to the CRS interference information includes: when the CRS interference information comprises a position interfered by a CRS, determining the number of a rate matching map corresponding to the position interfered by the CRS in the plurality of different rate matching maps as the number of the target rate matching map according to the preset corresponding relation between the position interfered by the CRS and the rate matching map; and when the CRS interference information indicates that the terminal has no CRS interference, determining that the number of the target rate matching map is 0 or null according to the CRS interference information.
Optionally, the rate matching map includes a symbol and a subcarrier corresponding to the symbol; in the rate matching map, symbols at preset positions of target subcarriers at every other preset subcarrier are indicated as unavailable from the position of the CRS interference; alternatively, in the rate matching map, symbols at corresponding preset positions of all subcarriers are indicated as being unavailable.
Optionally, the method further includes: after determining the information of a target rate matching map according to the CRS interference information, judging whether the target rate matching map is consistent with a rate matching map currently used by the terminal; responding to the inconsistency between the target rate matching map and the rate matching map currently used by the terminal, and requesting to acquire the target rate matching map from the network side equipment; and receiving the target rate matching map sent by the network side equipment.
Optionally, the terminal stores numbers of different rate matching maps in advance, and requests the network side device to obtain the target rate matching map, including: and sending the number of the target rate matching map to the network side equipment.
Optionally, the preset condition is that the SINR is lower than a first threshold or higher than a second threshold, where the first threshold is greater than the second threshold.
According to a first aspect of the present disclosure, a method for eliminating boundary interference is applied to a network side device, and includes: acquiring information of a target rate matching map from a terminal; sending the target rate matching map to the terminal according to the information of the target rate matching map, wherein the target rate matching map indicates the target position of the unavailable time-frequency resource; and sending data to the terminal according to the target rate matching map, wherein the data is not sent at the target position.
Optionally, the information of the target rate matching graph includes a number of the target rate matching graph.
Optionally, the network-side device stores a plurality of different rate matching maps in advance, where target positions of the unavailable time-frequency resources indicated in the different rate matching maps are different.
Optionally, the rate matching map includes a symbol and a subcarrier corresponding to the symbol; in the rate matching map, symbols at preset positions of target subcarriers at every other preset subcarrier are indicated as unavailable from the position of the CRS interference; alternatively, in the rate matching map, symbols at corresponding preset positions of all subcarriers are indicated as being unavailable.
Optionally, the method further includes: receiving a signal to interference plus noise ratio (SINR) reported by the terminal; in response to the SINR being greater than a third threshold, not sending a rate matching graph to the terminal; in response to the SINR being less than a fourth threshold, sending a first rate matching map to the terminal, the first rate matching map including symbols and subcarriers corresponding to the symbols, in the first rate matching map, symbols at corresponding preset positions of all subcarriers being indicated as unavailable, wherein the third threshold is greater than the fourth threshold.
According to a second aspect of the present disclosure, there is provided a boundary interference cancellation apparatus applied to a terminal, including: the monitoring module is used for monitoring the signal to interference plus noise ratio SINR of the terminal; a first obtaining module, configured to obtain cell common reference signal CRS interference information of the terminal in response to monitoring that the SINR meets a preset condition; a determining module, configured to determine information of a target rate matching map according to the CRS interference information, where a target position of an unavailable time-frequency resource is indicated in the target rate matching map; a decoding module, configured to decode a received signal from the network-side device using the target rate matching map, where no decoding is performed at the target location.
According to a third aspect of the present disclosure, there is provided a boundary interference cancellation apparatus applied to a network side device, including: the second acquisition module is used for acquiring information of a target rate matching map from the terminal; the first sending module is used for sending the target rate matching map to the terminal according to the information of the target rate matching map, wherein the target rate matching map indicates the target position of the unavailable time-frequency resource; and the second sending module is used for sending data to the terminal according to the target rate matching map, wherein the data is not sent at the target position.
According to a fourth aspect of the present disclosure, there is provided an electronic device comprising: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to execute any one of the boundary interference cancellation methods provided by the embodiments of the present disclosure via executing the executable instructions.
According to a fifth aspect of the present disclosure, there is provided a computer-readable storage medium, on which a computer program is stored, the computer program, when executed by a processor, implementing any one of the boundary interference cancellation methods provided by the embodiments of the present disclosure.
The method, the apparatus, the storage medium, and the electronic device for eliminating boundary interference in one or more embodiments of the present disclosure monitor SINR of a terminal, acquire CRS interference information of the terminal when monitoring that the SINR of the terminal satisfies a preset condition, and determine information of a target rate matching map according to the CRS interference information, so that the terminal may decode a signal from a network side device using the target rate matching map when receiving the signal from the network side device, and decode a target position of an unavailable time-frequency resource indicated in the target rate matching map when decoding, thereby effectively reducing LNR boundary interference by sacrificing a small amount of time-frequency resources.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.
Fig. 1 is a schematic diagram of a networking in accordance with one or more embodiments of the present disclosure;
fig. 2 is a flow diagram of a method of boundary interference cancellation in accordance with one or more embodiments of the present disclosure;
fig. 3 is a flow diagram of determining information of a target rate matching map from the CRS interference information in accordance with one or more embodiments of the present disclosure;
fig. 4A is a schematic diagram of a rate matching map in accordance with one or more embodiments of the present disclosure;
fig. 4B is a schematic diagram of a rate matching map in accordance with one or more embodiments of the present disclosure;
fig. 4C is a schematic diagram of a rate matching map in accordance with one or more embodiments of the present disclosure;
fig. 4D is a schematic illustration of a rate matching map in accordance with one or more embodiments of the present disclosure;
fig. 5 is a flow diagram of a method of boundary interference cancellation in accordance with one or more embodiments of the present disclosure;
fig. 6 is a flow diagram of a method of boundary interference cancellation in accordance with one or more embodiments of the present disclosure;
fig. 7 is a flow diagram of a method of boundary interference cancellation in accordance with one or more embodiments of the present disclosure;
fig. 8 is a flow diagram of a method of boundary interference cancellation according to one or more embodiments of the present disclosure;
fig. 9 is a schematic structural diagram of a boundary interference cancellation apparatus according to one or more embodiments of the present disclosure;
fig. 10 is a schematic structural diagram of a boundary interference cancellation apparatus according to one or more embodiments of the present disclosure; and
fig. 11 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.
One or more embodiments of the present disclosure provide a boundary interference cancellation method, which relates to a communication network in a networking manner with asymmetric bandwidth, and taking fig. 1 as an example, when a 40M NR is adjacent to a 20M LTE frequency point, because a 20M LTE cell mod3 (also called modulo 3 interference, which is a form of interference in an LTE system) is planned, a common frequency region of the 40M NR may be interfered by a CRS. Even if LTE load is not high, the NR terminal at the cell boundary still suffers from severe interference, which may cause channel quality to be poor and error rate to be increased when the NR terminal schedules 40M bandwidth, so that MCS (Modulation and Coding Scheme, Modulation and Coding strategy) reduced terminal rate is greatly reduced, and 40M NR network performance may be lower than 20M NR or 20M LTE cell.
It should be noted that fig. 1 is only one networking form related to the boundary interference cancellation method of the present disclosure, but the networking form related to the method is not limited to this, and the method is also applicable to other networking forms, including, but not limited to, 40M NR and 20MLTE +20M NR, 40M NR and 20M LTE +20M LTE, 40M DSS and 20M LTE +20M LTE, and 40M DSS and 20M LTE +20M NR.
In order to solve the LNR boundary interference problem, the embodiment of the present disclosure provides a boundary interference cancellation method.
Fig. 2 is a flowchart of a method for boundary interference cancellation, which is applied to a terminal, for example, and may be performed by the terminal, as shown in fig. 2, the method including:
step S202: monitoring the Signal to Interference plus Noise Ratio (SINR) of the terminal;
for example, the SINR of the terminal may be periodically obtained at preset time intervals, and the obtained SINR is reported to the network side device, so that the network side device knows the signal receiving condition of the terminal in real time.
Step S204: in response to the fact that the SINR is monitored to meet a preset condition, CRS interference information of the terminal is obtained;
before performing step S202, the terminal may communicate with the network side device based on a certain rate matching map, or may communicate with the network side without using any rate matching map. When the terminal uses different rate matching maps to communicate with the network side equipment, the preset conditions are different, and under different preset conditions, the values of the SINR values can be different.
In step S204, the terminal may perform self-test by performing CRS-IC (Common Reference Signal-Interference cancellation) to obtain CRS Interference information of the terminal.
Step S206: determining information of a target rate matching map according to the CRS interference information, wherein the target rate matching map indicates a target position of unavailable time-frequency resources;
target positions of unavailable time-frequency resources in the target rate matching map can correspond to CRS interference positions.
Optionally, for example, a corresponding relationship between the CRS interference information and the rate matching map may be pre-stored in the terminal, and based on this, in step S206, the terminal may determine the target rate matching map corresponding to the CRS interference information based on the corresponding relationship, so as to achieve the purpose of rate matching adaptation.
The unavailable time-frequency resource may be, for example, one time-frequency resource unit (RE) composed of one symbol and one subcarrier.
The information of the target rate matching map may include, for example, an identifier of the target rate matching map corresponding to the CRS interference information, or may include information whether the terminal needs to acquire the CRS map. Based on the information, the network side device may know a target rate matching map required by the terminal, or may know whether the terminal needs to use the rate matching map for communication.
Step S208: and decoding the received signal from the network side equipment by using the target rate matching map, wherein the decoding is not performed at the target position.
Optionally, the target rate matching map may indicate that there is an available time-frequency resource and an unavailable time-frequency resource, and after receiving a signal sent by the network side device, the terminal may decode a signal in the available time-frequency resource position and not decode a signal in the unavailable time-frequency resource position.
Optionally, after step S208 is executed, the SINR of the terminal may be continuously monitored, and whether to switch the rate matching map used by the terminal or determine whether to use the rate matching map for communication according to whether the SINR meets a specified condition.
The method for eliminating the boundary interference of one or more embodiments of the present disclosure monitors an SINR of a terminal, acquires CRS interference information of the terminal when the monitored SINR of the terminal satisfies a preset condition, and determines information of a target rate matching map according to the CRS interference information, so that the terminal can decode a signal from a network side device using the target rate matching map when receiving the signal from the network side device, and does not decode a target position of an unavailable time-frequency resource indicated in the target rate matching map when decoding, thereby effectively reducing LNR boundary interference by sacrificing a small amount of time-frequency resources.
In one or more embodiments of the present disclosure, the terminal may store numbers of multiple different rate matching maps in advance, the CRS interference information may include a location interfered by a CRS or indicate that the terminal has no CRS interference, and target locations of unavailable time-frequency resources indicated in different rate matching maps are different, and as shown in fig. 3, determining information of a target rate matching map according to the CRS interference information may include:
s2062: when the CRS interference information comprises a position interfered by a CRS, determining the number of a rate matching map corresponding to the position interfered by the CRS in the plurality of different rate matching maps as the number of the target rate matching map according to the preset corresponding relation between the position interfered by the CRS and the rate matching map;
the terminal may, for example, store a correspondence between the CRS interference location and the rate matching map in advance, where the correspondence may be expressed as a correspondence between the CRS interference location and the rate matching map number. Based on this, the number of the target rate matching map can be determined according to the corresponding relation.
It should be noted that, a plurality of different rate matching maps may be stored in the terminal, or a plurality of different rate matching maps may be directly stored in the terminal. If the terminal only stores the numbers of a plurality of different rate matching maps, the terminal can request to acquire a target rate matching map from network side equipment by sending the number of the target rate matching map to the network side equipment after determining the target rate matching map; if the terminal stores a plurality of different rate matching maps, the terminal can decode the signal from the network side equipment by using the target rate matching map directly based on the number of the target rate matching map.
S2064: and when the CRS interference information indicates that the terminal has no CRS interference, determining that the map number of the target rate matching map is 0 or null according to the CRS interference information.
When the number of the target rate matching map is 0 or empty, the terminal can determine that normal service processing is directly performed without using any rate matching map, or the terminal can send the number 0 or empty to the network side equipment, the network side equipment does not send any rate matching map to the terminal after receiving the number, and the terminal normally performs service processing without using any rate matching map on the basis of not receiving feedback of the network side equipment.
In the embodiment shown in fig. 3, the target rate matching map is determined according to the position subjected to CRS interference included in the CRS interference information or information indicating that the terminal has no CRS interference in the CRS interference information, so that the unavailable time-frequency resources specified in the target rate matching map can be ensured to correspond to the CRS interference condition, and thus, LNR neighbor cell interference can be effectively shielded by sacrificing a small amount of time-frequency resources.
In one or more embodiments of the present disclosure, a symbol and a subcarrier corresponding to the symbol may be included in the rate matching map;
in the rate matching map, symbols at preset positions of target subcarriers at every preset number of subcarriers from the position of the CRS interference are indicated as unavailable;
taking 2 as an example of the preset number, the third subcarrier at every two subcarriers may be the target subcarrier, and only the time-frequency resource indicated as unavailable is configured in the target subcarrier.
In an example, the location of the CRS is recorded by using a field vshift, and fig. 4A to 4C sequentially show a rate matching map of time frequency resources corresponding to the CRS at locations vshift of 0, 1, 4, 7, 8, and 11, where a gray lattice represents a knocked-out time frequency resource, a white lattice represents an un-knocked-out time frequency resource, the knocked-out time frequency resource is an unavailable time frequency resource, and the un-knocked-out time frequency resource is an available time frequency resource. Where the symbols 0, 1, 4, 7, 8, 11 (which is an example of the above-mentioned preset positions) are used.
Alternatively, in the rate matching map, symbols at corresponding preset positions of all subcarriers are indicated as being unavailable. For example, fig. 4D shows that the time-frequency resources corresponding to the entire symbol 20M bandwidth are marked off by symbols 0, 1, 4, 7, 8, and 11. Wherein, the symbols 0, 1, 4, 7, 8, 11 are an example of the preset positions.
The granularity of the unavailable time frequency resources indicated in the rate matching map can be adaptively switched between an RE level and a symbol level, for example, the RE level is used for rate matching when the interference is weak, and the symbol level is used for rate matching when the interference is strong, so that the spectrum efficiency can be greatly improved while the problem of LNR boundary interference is solved. The terminal may sacrifice a small amount of time-frequency resources (e.g., 7% -20%) to avoid CRS interference, and taking the networking manner shown in fig. 1 as an example, an effect that the edge performance of the scheduling 40M NR network is significantly better than that of the 20MNR or 20M LTE network may be achieved.
In one or more embodiments of the present disclosure, as shown in fig. 5, the boundary interference cancellation method may further include:
step S502: after determining the information of a target rate matching map according to the CRS interference information, judging whether the target rate matching map is consistent with a rate matching map currently used by the terminal;
for example, whether the target rate matching profile is identical to the rate matching profile currently used by the terminal may be determined by comparing whether the number of the target rate matching profile is identical to the number of the rate matching profile currently used by the terminal.
Step S504: responding to the inconsistency between the target rate matching map and the rate matching map currently used by the terminal, and requesting to acquire the target rate matching map from the network side equipment;
if the target rate matching map is consistent with the rate matching map currently used by the terminal, the terminal does not need to request the network side equipment to acquire the target rate matching map, for example, the terminal does not need to send the number of the target rate matching map to the network side equipment. Therefore, the number of times of interaction between the terminal and the network side equipment can be reduced.
In step S504, if the target rate matching map is inconsistent with the currently used rate matching map of the terminal, the terminal may send the number of the target rate matching map to the network side device through UCI (Uplink Control Information) or PUSCH (Physical Uplink Shared Channel) to request to acquire the target rate matching map.
Step S506: and receiving the target rate matching map sent by the network side equipment.
After receiving a request for acquiring a target rate matching map from a terminal, a network side device may configure the target rate matching map to the terminal through DCI (Downlink Control Information). Optionally, the network side device may store a plurality of different rate matching maps, and after receiving a number of a target rate matching map from the terminal, may send the target rate matching map to the terminal according to the number. Or, when the number 0 or the space is received, no rate matching map is sent to the terminal.
In one or more embodiments of the present disclosure, the terminal may store numbers of different rate matching maps in advance, and request the network side device to acquire the target rate matching map may include:
and sending the number of the target rate matching map to the network side equipment. For example, the terminal may report a 3-bit map number field avoidcrpattern to the network side device through the UCI, where the avoidcrpattern is 0 to indicate that there is no CRS interference of neighboring LTE around, and the network side device may not send the rate matching map to the terminal; the four cases of the avoidcrpattern 1-4 correspond to the four maps in fig. 4A-4D in sequence, and if there are more LNR interference regions in the surrounding neighboring cells, the field pattern 4 may be reported to the network side device, and the corresponding target rate matching map is shown in fig. 4D. For example, if the CRS interference position obtained by the terminal includes at least two cases of vshift being 0, 1, and 2, it may be determined that many LNR interference regions in the surrounding neighboring cell are interfered, and accordingly, it is determined that the number of the target rate matching map currently required by the terminal is pattern 4. Wherein, 0, 1, 2, 3, 4 in avoidcrpattern ═ 0, and 1-4 in avoidcrpattern ═ 1 respectively represent the numbers of the rate matching maps. The number 0 represents a no-rate matching map, the terminal sends the number 0 to the network side device, which means that the network rate matching map is not needed, and the base station does not send any rate matching map to the terminal when receiving the number 0.
In one or more embodiments of the present disclosure, the preset condition may be that the SINR is lower than a first threshold or higher than a second threshold, where the first threshold is greater than the second threshold. Optionally, when the rate matching maps currently used by the terminal are different, the corresponding preset conditions are also different. For example, if the terminal does not currently use any rate matching map, the preset condition may be that the SINR is lower than 12dB (which is an example of the first threshold), and if the terminal currently uses the rate matching map, the preset condition may be higher than a second threshold, which may be set to be not less than 6dB, for example.
Fig. 6 is a flowchart of a method for boundary interference cancellation according to one or more embodiments of the present disclosure, which may be performed by a network side device, for example, which may be provided as a base station, as shown in fig. 6, and the method includes:
s602: acquiring information of a target rate matching map from a terminal;
the target rate matching map may be a resource map, which may include information of symbols and subcarriers corresponding to the symbols, wherein the time-frequency resources at each location may be indicated as available or unavailable.
Alternatively, the information of the target rate matching profile from the terminal may include, for example, the number of the target rate matching profile from the terminal.
S604: sending the target rate matching map to the terminal according to the information of the target rate matching map, wherein the target rate matching map indicates the target position of the unused time-frequency resource;
the information of the target rate matching map is still exemplified by the number of the map, the network side device may store a plurality of different rate matching maps in advance, and after receiving the number of the target rate matching map from the terminal, may send the target rate matching map to the terminal according to the number. Or, when the number of the received data is 0 or empty, no rate matching map is sent to the terminal.
Optionally, the target position of the time-frequency resource indicated to be unused in the target rate matching map may correspond to the CRS position detected by the terminal side, and based on this, LNR boundary interference may be reduced by sacrificing a small amount of time-frequency resources.
Step S606: and sending data to the terminal according to the target rate matching map, wherein the data is not sent at the target position.
Optionally, the network side device may match the map according to the target rate, and send data on the time-frequency resource indicated as available in the map, and not send data on the time-frequency resource indicated as unavailable in the map.
The method for eliminating the boundary interference of one or more embodiments of the present disclosure receives information of a target rate matching map sent by a terminal, sends the target rate matching map to the terminal according to the information, sends data to the terminal according to the target rate matching map, and sends data at a time-frequency resource location that is not indicated as unavailable in the target rate matching map, so as to effectively reduce the LNR boundary interference.
In one or more embodiments of the present disclosure, the information of the target rate matching profile may include a number of the target rate matching profile. Optionally, the network side device may pre-store a correspondence between each rate matching map and the number, and after the network side device acquires the number of the target rate matching map from the terminal, the network side device may acquire the target rate matching map to send the map to the terminal, where a number 0 or a number empty corresponds to a case where no rate matching map exists, and when the network side device receives information that a number 0 or a number empty, the network side device does not send any rate matching map to the terminal.
In one or more embodiments of the present disclosure, a network-side device stores a plurality of different rate matching maps in advance, where target positions of unavailable time-frequency resources indicated in different rate matching maps are different. For example, different rate matching maps may correspond to different locations of CRS interference, or a certain rate matching map (such as the one shown in fig. 4D) may correspond to a case where CRS interference is present in multiple regions. Therefore, the corresponding rate matching map can be matched according to the actual CRS interference condition of the terminal, and the applicability of the boundary interference elimination method of the embodiment of the disclosure is improved.
In one or more embodiments of the present disclosure, a symbol and a subcarrier corresponding to the symbol may be included in the rate matching map;
in the rate matching map, symbols at preset positions of target subcarriers at every other preset subcarrier are indicated as unavailable from the position of the CRS interference;
alternatively, in the rate matching map, symbols at corresponding preset positions of all subcarriers are indicated as being unavailable.
The preset position may be set in advance according to a position where CRS interference occurs more frequently, for example, so that the method can be better applied to various CRS interference situations based on the rate matching map.
Optionally, for a position of the time-frequency resource indicated as unavailable in the rate matching map, the network side device does not send data at the position, and the terminal does not decode at the position.
In one or more embodiments of the present disclosure, the rate matching map used by the terminal may be further determined by the network side device according to the SINR, and as shown in fig. 7, the method may further include:
step S702: receiving a signal to interference plus noise ratio (SINR) reported by the terminal;
step S704: in response to the SINR being greater than a third threshold, not sending a rate matching graph to the terminal;
when the SINR of the terminal is greater than the third threshold, it may be determined that the terminal side is less interfered by the CRS, and at this time, the terminal does not need to use any rate matching map, so the network side device does not need to send any rate matching map to the terminal.
Step S706: in response to the SINR being less than a fourth threshold, sending a first rate matching map to the terminal, the first rate matching map including symbols and subcarriers corresponding to the symbols, in the first rate matching map, symbols at corresponding preset positions of all subcarriers being indicated as unavailable, wherein the third threshold is greater than the fourth threshold.
When the SINR of the terminal is less than the fourth threshold, it may be determined that the terminal side is affected by the CRS interference at more positions, and the terminal needs to sacrifice a certain time-frequency resource to avoid the CRS interference. 4A-4D, wherein the rate matching graph shown in FIG. 4D has the most time-frequency resources indicated as unavailable.
Fig. 8 is a flowchart of a boundary interference cancellation method according to one or more embodiments of the present disclosure, and as shown in fig. 8, the method may include the following processes:
step S802: an NR terminal (which is an example of the above terminal) accesses a 40M NR cell and initiates a service, and does not perform rate matching, that is, does not match a rate matching map, and monitors a SINR value in real time.
Step S804: judging the SINR, if the SINR is lower than 12dB (which is an example of the first threshold), executing step S806, otherwise, executing step S802;
step S806: starting a CRS-IC self-test of the terminal, reporting an avoidcrpattern of a 3bit field to a base station (an example of the network side device) through a UCI or a PUSCH as a self-test result, if the pattern is equal to 0, performing step S808, if the pattern is equal to 1-3, performing step S810, and if the pattern is equal to 4, performing step S812;
step S808: the terminal does not need a rate matching map, continues service processing and detects the SINR size.
Step S810: and the base station correspondingly switches to the atlas 1, 2 or 3 and configures the atlas 1, 2 or 3 to the terminal through the DCI.
Step S812: the base station switches the map 4 and configures the map 4 to the terminal through DCI;
if the base station is switched to the atlas 4, the SINR is continuously monitored;
step S814: judging whether the SINR is not lower than 6dB, executing a step S816 when the SINR is higher than 6dB, and executing a step S818 if the SINR is not higher than 6 dB;
step S816: the terminal starts self-checking, a 3bit field of a self-checking result is reported to the base station through the UCI, and if the result is pattern is 4, the step S818 is executed;
step S818: maintaining the atlas 4 and continuing to monitor SINR;
if the terminal self-test result in step S806 is pattern 1, 2 or 3, the base station is notified to switch to the map 1, 2 or 3, and step S820 is executed;
step S820: monitoring the SINR of the terminal, if the SINR is more than or equal to 15dB, executing the step S822, and if the SINR is less than 15dB, executing the step S824;
step S822: the base station does not send a rate matching map, the terminal directly switches back to the pattern 0 mode, and the terminal does not need self-checking;
step S824: judging whether the SINR is less than 4dB, if so, executing a step S826, and if not, executing a step S828;
step S826: the terminal is switched back to the atlas 4 and configured to the terminal through DCI, and the terminal does not need self-checking;
step S828: maintaining the maps 1, 2 or 3, periodically performing CRS self-check to find the deviation of CRS interference, and reporting the value of Pattern in time, wherein the maps are generally switched between 1 and 3, and are also switched to 0 or 4 with a small probability.
The judgment thresholds 4, 6, 12 and 15 are all empirical values, and can be optimized and changed according to the actual situation of the existing network. By optimizing the four thresholds, the network can reduce the ping-pong effect of the map switching at the LNR boundary, and the average speed is improved.
When the boundary interference elimination method of the embodiment of the disclosure is used for resisting interference at the boundary between an outdoor 40M NR networking and 1 20M LTE frequency point, after the method is applied to the 40M NR networking, the interference influence brought by LTE CRS can be reduced when an NR terminal schedules a large bandwidth of 40M at the boundary between a cell edge and the 20M LTE, and the effect of improving the average rate of the NR terminal is achieved. Compared with a frequency selection scheduling algorithm, the frequency spectrum utilization rate is improved. Experiments show that when 40M NR is adjacent to 1 20M LTE frequency point, the boundary interference elimination method of one or more embodiments of the disclosure can be applied without setting an isolation zone.
Fig. 9 is a schematic structural diagram of a boundary interference cancellation apparatus according to one or more embodiments of the present disclosure, where the apparatus is applicable to a network side device, as shown in fig. 9, the apparatus 910 includes:
a monitoring module 912, configured to monitor a signal to interference plus noise ratio SINR of the terminal;
a first obtaining module 914, configured to obtain cell common reference signal CRS interference information of the terminal in response to monitoring that the SINR meets a preset condition;
a determining module 916, configured to determine information of a target rate matching map according to the CRS interference information, where the target rate matching map indicates a target location of an unavailable time-frequency resource;
a decoding module 918, configured to decode a received signal from a network side device using the target rate matching map, where no decoding is performed at the target location.
In one or more embodiments of the present disclosure, the terminal stores numbers of a plurality of different rate matching maps in advance, where the CRS interference information includes a position interfered by a CRS or indicates that the terminal has no CRS interference, target positions of unavailable time-frequency resources indicated in the different rate matching maps are different, and the determining module is specifically configured to:
when the CRS interference information comprises a position interfered by a CRS, determining the number of a rate matching map corresponding to the position interfered by the CRS in the plurality of different rate matching maps as the number of the target rate matching map according to the preset corresponding relation between the position interfered by the CRS and the rate matching map;
and when the CRS interference information indicates that the terminal has no CRS interference, determining that the number of the target rate matching map is 0 or null according to the CRS interference information.
In one or more embodiments of the present disclosure, the rate matching map includes a symbol and a subcarrier corresponding to the symbol;
in the rate matching map, symbols at preset positions of target subcarriers at every other preset subcarrier are indicated as unavailable from the position of the CRS interference;
alternatively, in the rate matching map, symbols at corresponding preset positions of all subcarriers are indicated as being unavailable.
In one or more embodiments of the present disclosure, the apparatus may further include:
the judging module is used for judging whether the target rate matching map is consistent with the current rate matching map used by the terminal or not after determining the information of the target rate matching map according to the CRS interference information;
the request module is used for responding to the inconsistency between the target rate matching map and the rate matching map currently used by the terminal and requesting the network side equipment to acquire the target rate matching map;
and the receiving module is used for receiving the target rate matching map sent by the network side equipment.
In one or more embodiments of the present disclosure, the terminal stores numbers of different rate matching maps in advance, and the request module is specifically configured to:
and sending the number of the target rate matching map to the network side equipment.
In one or more embodiments of the present disclosure, the first preset condition is that the SINR is lower than a first threshold or higher than a second threshold, where the first threshold is greater than the second threshold.
Fig. 10 is a schematic structural diagram of any boundary interference cancellation apparatus according to one or more embodiments of the present disclosure, where the apparatus may be applied to a network side device, and as shown in fig. 10, the apparatus 1010 includes:
a second obtaining module 1012, configured to obtain information of a target rate matching map from a terminal;
a first sending module 1014, configured to send the target rate matching map to the terminal according to information of the target rate matching map, where a target position of an unavailable time-frequency resource is indicated in the target rate matching map;
a second sending module 1016, configured to send data to the terminal according to the target rate matching map, where no data is sent in the target location.
In one or more embodiments of the present disclosure, the information of the target rate matching profile may include a number of the target rate matching profile.
In one or more embodiments of the present disclosure, the network-side device may store a plurality of different rate matching maps in advance, where target positions of unavailable time-frequency resources indicated in the different rate matching maps are different.
In one or more embodiments of the present disclosure, a symbol and a subcarrier corresponding to the symbol may be included in the rate matching map;
in the rate matching map, symbols at preset positions of target subcarriers at every other preset subcarrier are indicated as unavailable from the position of the CRS interference;
alternatively, in the rate matching map, symbols at corresponding preset positions of all subcarriers are indicated as being unavailable.
In one or more embodiments of the present disclosure, the apparatus may further include:
a second receiving module, configured to receive a signal to interference plus noise ratio SINR reported by the terminal;
a first execution module, configured to not send a rate matching graph to the terminal in response to the SINR being greater than a third threshold;
a second execution module, configured to send, to the terminal, a first rate matching map in response to the SINR being less than a fourth threshold, where the first rate matching map includes symbols and subcarriers corresponding to the symbols, and in the first rate matching map, symbols at corresponding preset positions of all subcarriers are indicated as unavailable, and the third threshold is greater than the fourth threshold.
One or more embodiments of the present disclosure also provide an electronic device including: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to execute any one of the boundary interference cancellation methods provided by the embodiments of the present disclosure via executing the executable instructions.
One or more embodiments of the present disclosure also provide a computer-readable storage medium on which a computer program is stored, the computer program, when executed by a processor, implementing any one of the boundary interference cancellation methods provided by the embodiments of the present disclosure.
As will be appreciated by one skilled in the art, aspects of the present invention may be embodied as a system, method or program product. Thus, various aspects of the invention may be embodied in the form of: an entirely hardware embodiment, an entirely software embodiment (including firmware, microcode, etc.) or an embodiment combining hardware and software aspects that may all generally be referred to herein as a "circuit," module "or" system.
An electronic device 1100 according to this embodiment of the invention is described below with reference to fig. 11. The electronic device 1100 shown in fig. 11 is only an example and should not bring any limitations to the function and the scope of use of the embodiments of the present invention.
As shown in fig. 11, the electronic device 1000 is embodied in the form of a general purpose computing device. The components of the electronic device 1100 may include, but are not limited to: the at least one processing unit 1110, the at least one memory unit 1120, and a bus 1130 that couples various system components including the memory unit 1120 and the processing unit 1110.
Wherein the storage unit stores program code that is executable by the processing unit 1110 to cause the processing unit 1110 to perform steps according to various exemplary embodiments of the present invention as described in the above section "exemplary methods" of the present specification.
The storage unit 1120 may include a readable medium in the form of a volatile memory unit, such as a random access memory unit (RAM)11201 and/or a cache memory unit 11202, and may further include a read only memory unit (ROM) 11203.
Storage unit 1120 may also include a program/utility 11204 having a set (at least one) of program modules 11205, such program modules 11205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which, or some combination thereof, may comprise an implementation of a network environment.
Bus 1130 may be representative of one or more of several types of bus structures, including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.
The electronic device 1100 may also communicate with one or more external devices 1200 (e.g., keyboard, pointing device, bluetooth device, etc.), with one or more devices that enable a user to interact with the electronic device 1100, and/or with any devices (e.g., router, modem, etc.) that enable the electronic device 1100 to communicate with one or more other computing devices. Such communication can occur via an input/output (I/O) interface 1150. Also, the electronic device 1100 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network such as the internet) via the network adapter 1160. As shown, the network adapter 1160 communicates with the other modules of the electronic device 1100 over the bus 1130. It should be appreciated that although not shown, other hardware and/or software modules may be used in conjunction with the electronic device 1100, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.
Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which may be a personal computer, a server, a terminal device, or a network device, etc.) to execute the method according to the embodiments of the present disclosure.
In an exemplary embodiment of the present disclosure, there is also provided a computer readable storage medium having stored thereon a program product capable of implementing the above-described method of the present specification. In some possible embodiments, aspects of the invention may also be implemented in the form of a program product comprising program code means for causing a terminal device to carry out the steps according to various exemplary embodiments of the invention described in the above section "exemplary methods" of the present description, when said program product is run on the terminal device.
A program product for implementing the above method according to an embodiment of the present invention is described, which may employ a portable compact disc read only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited in this regard and, in the present document, a 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.
The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
A computer readable signal medium may include a propagated data signal with readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server. In situations involving remote computing devices, the remote computing devices may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to external computing devices (e.g., through the internet using an internet service provider).
It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit, according to embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.
Moreover, although the steps of the methods of the present disclosure are depicted in the drawings in a particular order, this does not require or imply that the steps must be performed in this particular order, or that all of the depicted steps must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions, etc.
Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which may be a personal computer, a server, a mobile terminal, or a network device, etc.) to execute the method according to the embodiments of the present disclosure.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (15)

1. A method for eliminating boundary interference is applied to a terminal, and is characterized by comprising the following steps:
monitoring the signal to interference plus noise ratio (SINR) of the terminal;
acquiring cell common reference signal CRS interference information of the terminal in response to monitoring that the SINR meets a preset condition;
determining information of a target rate matching map according to the CRS interference information, wherein the target rate matching map indicates a target position of unavailable time-frequency resources;
and decoding the received signal from the network side equipment by using the target rate matching map, wherein the decoding is not performed at the target position.
2. The method according to claim 1, wherein the terminal stores in advance a number of a plurality of different rate matching maps, target positions of unavailable time-frequency resources indicated in the different rate matching maps are different, the CRS interference information includes a position subjected to CRS interference or indicates that the terminal has no CRS interference, and determining information of a target rate matching map according to the CRS interference information includes:
when the CRS interference information comprises a position interfered by a CRS, determining the number of a rate matching map corresponding to the position interfered by the CRS in the plurality of different rate matching maps as the number of the target rate matching map according to the preset corresponding relation between the position interfered by the CRS and the rate matching map;
and when the CRS interference information indicates that the terminal has no CRS interference, determining that the number of the target rate matching map is 0 or null according to the CRS interference information.
3. The method of claim 2, wherein the rate matching map comprises symbols and sub-carriers corresponding to the symbols;
in the rate matching map, symbols at preset positions of target subcarriers at every other preset subcarrier are indicated as unavailable from the position of the CRS interference;
alternatively, in the rate matching map, symbols at corresponding preset positions of all subcarriers are indicated as being unavailable.
4. The method of claim 1, further comprising:
after determining the information of a target rate matching map according to the CRS interference information, judging whether the target rate matching map is consistent with a rate matching map currently used by the terminal;
responding to the inconsistency between the target rate matching map and the rate matching map currently used by the terminal, and requesting the network side equipment to acquire the target rate matching map;
and receiving the target rate matching map sent by the network side equipment.
5. The method according to claim 4, wherein the terminal stores numbers of different rate matching maps in advance, and requests the network side device to acquire the target rate matching map, the method includes:
and sending the number of the target rate matching map to the network side equipment.
6. The method according to any of claims 1-5, wherein the preset condition is that the SINR is lower than a first threshold or higher than a second threshold, wherein the first threshold is greater than the second threshold.
7. A method for eliminating boundary interference is applied to network side equipment, and is characterized by comprising the following steps:
acquiring information of a target rate matching map from a terminal;
sending the target rate matching map to the terminal according to the information of the target rate matching map, wherein the target rate matching map indicates the target position of the unavailable time-frequency resource;
and sending data to the terminal according to the target rate matching map, wherein the data is not sent at the target position.
8. The method of claim 7, wherein the information of the target rate matching profile comprises a number of the target rate matching profile.
9. The method according to claim 7, wherein a plurality of different rate matching maps are pre-stored in the network-side device, and target locations of the unavailable time-frequency resources indicated in the different rate matching maps are different.
10. The method of claim 9,
the rate matching map comprises symbols and subcarriers corresponding to the symbols;
in the rate matching map, symbols at preset positions of target subcarriers at every other preset subcarrier are indicated as unavailable from the position of the CRS interference;
alternatively, in the rate matching map, symbols at corresponding preset positions of all subcarriers are indicated as being unavailable.
11. The method according to any one of claims 7 to 9, further comprising:
receiving a signal to interference plus noise ratio (SINR) reported by the terminal;
in response to the SINR being greater than a third threshold, not sending a rate matching graph to the terminal;
in response to the SINR being less than a fourth threshold, sending a first rate matching map to the terminal, the first rate matching map including symbols and subcarriers corresponding to the symbols, in the first rate matching map, symbols at corresponding preset positions of all subcarriers being indicated as unavailable, wherein the third threshold is greater than the fourth threshold.
12. A boundary interference elimination device applied to a terminal is characterized by comprising:
the monitoring module is used for monitoring the signal to interference plus noise ratio SINR of the terminal;
a first obtaining module, configured to obtain cell common reference signal CRS interference information of the terminal in response to monitoring that the SINR meets a preset condition;
a determining module, configured to determine information of a target rate matching map according to the CRS interference information, where a target position of an unavailable time-frequency resource is indicated in the target rate matching map;
and the decoding module is used for decoding the received signal from the network side equipment by using the target rate matching map, wherein the decoding is not performed at the target position.
13. A boundary interference elimination device is applied to network side equipment, and is characterized by comprising:
the second acquisition module is used for acquiring the information of the target rate matching map from the terminal;
the first sending module is used for sending the target rate matching map to the terminal according to the information of the target rate matching map, wherein the target rate matching map indicates the target position of the unavailable time-frequency resource;
and the second sending module is used for sending data to the terminal according to the target rate matching map, wherein the data is not sent at the target position.
14. An electronic device, comprising:
a processor; and
a memory for storing executable instructions of the processor;
wherein the processor is configured to perform the boundary interference cancellation method of any one of claims 1 to 6 or claims 7 to 11 via execution of the executable instructions.
15. A computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the boundary interference cancellation method of any one of claims 1 to 6 or claims 7 to 11.
CN202111375810.1A 2021-11-19 2021-11-19 Boundary interference elimination method, device, storage medium and electronic equipment Pending CN114096012A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116582874A (en) * 2023-07-13 2023-08-11 中国电信股份有限公司 Interference signal processing method, system, equipment and medium
WO2023179208A1 (en) * 2022-03-21 2023-09-28 中兴通讯股份有限公司 Signal interference control method, lte system, physical layer device and storage medium
WO2024020810A1 (en) * 2022-07-26 2024-02-01 北京小米移动软件有限公司 Measurement result reporting method and apparatus, measurement result receiving method and apparatus, communication apparatus, and storage medium

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023179208A1 (en) * 2022-03-21 2023-09-28 中兴通讯股份有限公司 Signal interference control method, lte system, physical layer device and storage medium
WO2024020810A1 (en) * 2022-07-26 2024-02-01 北京小米移动软件有限公司 Measurement result reporting method and apparatus, measurement result receiving method and apparatus, communication apparatus, and storage medium
CN116582874A (en) * 2023-07-13 2023-08-11 中国电信股份有限公司 Interference signal processing method, system, equipment and medium
CN116582874B (en) * 2023-07-13 2023-10-03 中国电信股份有限公司 Interference signal processing method, system, equipment and medium

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