CN112689307B - Uplink access interference avoidance method, device, computer equipment and storage medium - Google Patents
Uplink access interference avoidance method, device, computer equipment and storage medium Download PDFInfo
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Abstract
The application discloses an uplink access interference avoiding method, a device, computer equipment and a storage medium, which relate to the communication technology, wherein in the uplink access interference avoiding method, UE receives at least one synchronous signal block broadcasted by a base station in a common downlink mode; determining the interference condition of a common downlink mode according to the signal characteristics respectively corresponding to each synchronous signal block; and determining a target uplink mode according to the interference condition of the common downlink mode, and transmitting uplink data based on the target uplink mode. In the embodiment of the application, the UE determines the interference degree of the common uplink mode according to the interference degree of the common downlink mode by using the symmetric reciprocity of the uplink channel and the downlink channel, and then determines the uplink mode adopted by the UE according to the interference degree of the common uplink mode.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for avoiding uplink access interference, a computer device, and a storage medium.
Background
With the rapid development of wireless communication technology, the search for the fifth generation mobile communication technology (i.e. 5G technology) becomes a hot topic in the communication field.
In the 5G NR (english: 5G New Radio; chinese: 5G New air interface) standard, a base station and a User Equipment UE (english: user Equipment, chinese: user Equipment) can support a non-supplemental uplink mode (i.e., a normal uplink mode) and a supplemental uplink mode to access a communication network. Wherein, the common uplink mode adopts a higher frequency band, and the uplink coverage is smaller. The supplementary uplink mode adopts a lower frequency band, and the uplink coverage is larger. In the related art, the method for determining the uplink mode of the UE may be: specifically, when the UE is located near the center of the cell, the UE accesses the base station in a normal uplink manner, and when the UE is located near the edge of the cell, the UE accesses the base station in a supplementary uplink manner.
However, in the method for determining the uplink mode of the UE, when the communication network is attacked by interference, the communication quality corresponding to the normal uplink mode and the communication quality corresponding to the supplemental uplink mode may change unpredictably, so if the uplink mode adopted by the UE to access the base station is still determined according to the location of the UE in the cell, the UE may access the base station by adopting an inappropriate uplink mode, so that the communication quality of the UE is reduced, and even the communication is interrupted.
Disclosure of Invention
In view of the above, it is necessary to provide an uplink access interference avoidance method, apparatus, computer device and storage medium for solving the above-mentioned problems of UE communication quality degradation and even communication interruption.
In a first aspect, an embodiment of the present application provides a method for avoiding uplink access interference, where the method includes:
receiving at least one synchronous signal block broadcasted by a base station in a common downlink mode;
determining the interference condition of a common downlink mode according to the signal characteristics respectively corresponding to each synchronous signal block, wherein the signal characteristics comprise received power, signal-to-interference-and-noise ratio and received signal quality;
and determining a target uplink mode according to the interference condition of the common downlink mode, and transmitting uplink data based on the target uplink mode, wherein the target uplink mode is any one of the common uplink mode and the supplementary uplink mode.
In one embodiment, determining the interference status of the common downlink mode according to the signal characteristics corresponding to each synchronization signal block includes:
determining a synchronous signal block with interference from at least one synchronous signal block according to the signal characteristics corresponding to each synchronous signal block;
and determining an interference ratio according to the number of the data packets of the synchronous signal block with interference, wherein the interference ratio is used for representing the interference condition of a common downlink mode.
In one embodiment, determining a target uplink mode according to an interference condition of a normal downlink mode includes:
when the interference ratio is greater than or equal to the interference ratio threshold, determining the supplementary uplink mode as a target uplink mode;
and when the interference ratio is smaller than the interference ratio threshold value, determining the common uplink mode as a target uplink mode.
In one embodiment, before determining the target uplink mode according to the interference condition of the normal downlink mode, the method further includes:
and receiving an interference ratio threshold value sent by the base station.
In one embodiment, determining a synchronization signal block with interference from at least one synchronization signal block according to a signal characteristic corresponding to each synchronization signal block includes:
aiming at each synchronous signal block, when the receiving power of the synchronous signal block is more than or equal to a power threshold value and the signal-to-interference-and-noise ratio of the synchronous signal block is less than or equal to a signal-to-interference-and-noise ratio threshold value, determining that the synchronous signal block has interference;
or, for each synchronization signal block, when the received power of the synchronization signal block is greater than or equal to the power threshold and the received signal quality of the synchronization signal block is less than or equal to the signal quality threshold, determining that the synchronization signal block has interference.
In one embodiment, before determining the synchronization signal block with interference from at least one synchronization signal block according to the signal characteristics corresponding to each synchronization signal block, the method further includes:
and receiving a power threshold, a signal-to-interference-and-noise ratio threshold and a signal quality threshold which are sent by the base station.
In one embodiment, determining the interference ratio according to the number of the synchronization signal blocks with interference comprises:
marking each synchronous signal block according to whether the synchronous signal block has interference or not to obtain an interference array corresponding to a common downlink mode;
and calculating the interference ratio according to the interference array corresponding to the common downlink mode.
In a second aspect, an embodiment of the present application provides an interference avoidance apparatus, including:
a receiving module, configured to receive at least one synchronization signal block broadcast by a base station in a normal downlink manner;
the interference analysis module is used for determining the interference condition of a common downlink mode according to the signal characteristics respectively corresponding to each synchronous signal block, wherein the signal characteristics comprise received power, signal-to-interference-and-noise ratio and received signal quality;
and the uplink mode determining module is used for determining a target uplink mode according to the interference condition of the common downlink mode and transmitting uplink data based on the target uplink mode, wherein the target uplink mode is any one of the common uplink mode and the supplementary uplink mode.
In a third aspect, there is provided a computer device comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, performs the steps of any of the methods of the first aspect.
In a fourth aspect, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, carries out the steps of any of the methods of the first aspect described above.
The beneficial effects brought by the technical scheme provided by the embodiment of the application at least comprise:
the UE receives at least one synchronous signal block broadcasted by the base station in a common downlink mode, and determines the interference condition of the common downlink mode according to the signal characteristics respectively corresponding to each synchronous signal block, wherein the signal characteristics comprise receiving power, signal-to-interference-and-noise ratio and receiving signal quality. Then, the UE may determine a target uplink mode according to the interference condition of the normal downlink mode, where the target uplink mode is any one of the normal uplink mode and the supplemental uplink mode, and the UE may transmit uplink data based on the target uplink mode. Therefore, in the embodiment of the present application, the UE may determine the interference level of the common uplink mode according to the interference level of the common downlink mode by using the symmetric reciprocity between the uplink channel and the downlink channel. When the interference degree of the common downlink mode is larger, the interference degree of the common uplink mode is larger; when the interference degree of the common downlink mode is smaller, the interference degree of the common uplink mode is smaller. Therefore, the UE determines the interference degree of the common uplink mode according to the interference degree of the common downlink mode, and then determines the uplink mode adopted by the UE according to the interference degree of the common uplink mode.
Drawings
Fig. 1 is a schematic diagram of an implementation environment of an uplink access interference avoidance method according to an embodiment of the present application;
fig. 2 is an internal structure diagram of a UE according to an embodiment of the present application;
fig. 3 is a flowchart of an uplink access interference avoidance method according to an embodiment of the present application;
fig. 4 is a schematic diagram of a synchronization signal grid according to an embodiment of the present application;
fig. 5 is a flowchart of another uplink access interference avoidance method according to an embodiment of the present application;
fig. 6 is a flowchart of another uplink access interference avoidance method according to an embodiment of the present application;
fig. 7 is a block diagram of an uplink access interference avoiding apparatus according to an embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
With the rapid development of wireless communication technology, the search for the fifth generation mobile communication technology (i.e. 5G technology) becomes a hot topic in the communication field.
In the 5G NR standard, for downlink data transmission, a base station may use analog beamforming to increase a network coverage, but for uplink data transmission, even if a UE uses a power increase strategy, it is difficult to achieve the network coverage corresponding to the downlink data transmission. In addition, the frequency band of the 5G NR is shifted up compared with the frequency band of the 4G LTE (Long Term Evolution, chinese), so the network coverage of the uplink data transmission corresponding to the 5G NR is also reduced accordingly. In order to solve the problem that the network coverage of the uplink data transmission in the 5G NR is small, a supplementary uplink SUL (abbreviated as SUL) technology is supported in the 5G NR, that is, the base station and the UE can support both a non-supplementary uplink mode (i.e., a common uplink mode) and a supplementary uplink mode SUL to access the communication network.
In practice, the frequency resources corresponding to the supplemental uplink mode are limited, and if all UEs access the base station through the supplemental uplink mode, the number of UEs in the supplemental uplink frequency band may be very large, resulting in a decrease in throughput of a single UE. Therefore, in the related art, the method for determining the UE uplink mode may be: specifically, when the UE is located near the center of the cell, the UE accesses the base station in a normal uplink manner, and when the UE is located near the edge of the cell, the UE accesses the base station in a supplementary uplink manner.
However, in the method for determining the uplink mode of the UE, when the communication network is attacked by interference, the communication quality corresponding to the normal uplink mode and the communication quality corresponding to the supplemental uplink mode may change unpredictably, so if the uplink mode adopted by the UE to access the base station is still determined according to the location of the UE in the cell, the UE may access the base station by adopting an inappropriate uplink mode, so that the communication quality of the UE is reduced, and even the communication is interrupted.
The embodiment of the application provides an uplink access interference avoiding method, an uplink access interference avoiding device, computer equipment and a storage medium, which can effectively avoid strong interference signals. In the uplink access interference avoiding method, the UE receives at least one synchronous signal block broadcasted by the base station in a common downlink mode, and determines the interference condition of the common downlink mode according to the signal characteristics respectively corresponding to each synchronous signal block, wherein the signal characteristics comprise receiving power, signal-to-interference-and-noise ratio and receiving signal quality. Then, the UE may determine a target uplink mode according to the interference condition of the normal downlink mode, where the target uplink mode is any one of the normal uplink mode and the supplemental uplink mode, and the UE may transmit uplink data based on the target uplink mode. Therefore, in the embodiment of the present application, the UE may determine the interference level of the common uplink mode according to the interference level of the common downlink mode by using the symmetric reciprocity between the uplink channel and the downlink channel. When the interference degree of the common downlink mode is larger, the interference degree of the common uplink mode is larger; when the interference degree of the common downlink mode is smaller, it indicates that the interference degree of the common uplink mode is smaller. Therefore, the UE may determine the normal uplink mode or the supplemental uplink mode as the target uplink mode according to the interference degree of the normal uplink mode, and as a result, in the embodiment of the present application, the uplink mode adopted by the UE is determined according to the interference degree of the uplink mode.
In the following, a brief description will be given of an implementation environment related to the uplink access interference avoidance method provided in the embodiment of the present application.
Referring to fig. 1, fig. 1 is a schematic diagram of an implementation environment related to an uplink access interference avoidance method provided in an embodiment of the present application, as shown in fig. 1, the implementation environment includes a UE101 and a base station 103, in the embodiment of the present application, it is configured that the UE101 and the base station 103 both have capabilities of transmitting uplink data in a supplemental uplink manner and transmitting uplink data in a non-supplemental uplink manner, and the base station 103 may configure, for the UE101, time domain resources and frequency domain resources corresponding to the supplemental uplink manner and the non-supplemental uplink manner, respectively.
The base station 103 may periodically broadcast at least one Synchronization Signal Block SSB (SSB) in a predetermined frequency band. The UE101 may receive the at least one synchronization signal block SSB.
Alternatively, the base station 103 may periodically broadcast at least one synchronization signal block SSB in a plurality of predetermined frequency bands. Accordingly, the UE101 may detect the synchronization signal blocks SSB received through all frequency bands by default in all frequency bands supported by the UE.
Alternatively, the UE101 may predefine a number of threshold parameters and maintain them in a database. The plurality of threshold parameters may be used to determine the interference level of the normal uplink mode corresponding to the UE 101. Optionally, the plurality of threshold parameters may include an interference ratio threshold, a power threshold, a signal to interference plus noise ratio threshold, and a signal quality threshold.
Optionally, the base station 103 may send a system message to the UE101, where the system message may carry multiple threshold parameters, and the UE101 may obtain the multiple threshold parameters by analyzing the system message, where the multiple threshold parameters may include an interference ratio threshold, a power threshold, a signal-to-interference-and-noise ratio threshold, and a signal quality threshold.
In another embodiment of the present application, a UE is provided, and an internal structure diagram of the UE may be as shown in fig. 2. The UE includes a processor, a memory, a network interface, and a database connected by a system bus. Wherein the processor of the UE is configured to provide computing and control capabilities. The memory of the UE comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The UE's database is used for a plurality of threshold parameters, which may include an interference ratio threshold, a power threshold, a signal to interference and noise ratio threshold, and a signal quality threshold. The network interface of the UE is used for communicating with external terminals and base stations through network connections. The computer program is executed by a processor to implement a method for uplink access interference avoidance.
The structure shown in fig. 2 is a block diagram of only a part of the structure related to the present application, and does not constitute a limitation of the terminal to which the present application is applied, and a specific terminal may include more or less components than those shown in the drawing, or combine some components, or have a different arrangement of components.
Please refer to fig. 3, which illustrates a flowchart of an uplink access interference avoidance method according to an embodiment of the present application, where the uplink access interference avoidance method can be applied to the implementation environment shown in fig. 1. As shown in fig. 3, the uplink access interference avoidance method may include the following steps:
In the embodiment of the present application, the base station side may send one synchronization signal block to the UE in each period, or send multiple synchronization signal blocks to the UE in each period. The base station broadcasts the synchronous signal block by default in a common downlink mode.
In an optional implementation manner, the process of receiving, by the UE, at least one synchronization signal block may be: and the UE searches the synchronous signals according to the channel grid, and obtains the synchronous signal block SSB through searching.
In another alternative implementation, since the channel bandwidth is very large in the 5G NR, if the UE performs synchronization signal search according to the channel grid, the search time is long and power consumption is large. In order to shorten the search time and the power consumption of the UE, the concept of a synchronization signal grid is defined in NR, and the synchronization signal blocks SSB are placed according to the position of the synchronization signal grid. The definition of the synchronization signal trellis can be found in 3GPP TS38.101V15 (or V16) table 5.4.3.1-1. Based on the above, the process of the UE receiving at least one synchronization signal block may be:
when the frequency band is greater than or equal to 3GHz, examples of Global Synchronization Channel numbers GSCN (Global Synchronization Channel Number, abbreviated as GSCN) may be as shown in table 1:
TABLE 1
| Serial number | N | SSB frequency location | GSCN |
| 1 | 0 | |
7499 |
| 2 | 1 | 3001.44 |
7450 |
| 3 | 2 | 3002.88 |
7451 |
| 4 | 3 | 3004.32MHz | 7452 |
As can be seen from table 1 and fig. 4, the synchronization signal blocks are placed on the synchronization signal grids at the same intervals, so that the UE can directly find the positions of the synchronization signal grids and obtain the synchronization signal blocks SSB therefrom.
Wherein the signal characteristics include received power, signal to interference and noise ratio, and received signal quality.
The UE needs to analyze each received synchronization Signal block SSB, and according to the UE capability defined by 3gpp ts38.215v15, when the UE demodulates the SSB, the UE can obtain the received Power RSRP (english: reference Signal Receiving Power; chinese: reference Signal received Power), signal to Interference and Noise Ratio SINR (english: signal to Interference plus Noise Ratio; chinese: signal to Interference plus Noise Ratio) and received Signal Quality RSRQ (english: reference Signal Receiving Quality) corresponding to each synchronization Signal block.
In an optional implementation manner, as shown in fig. 5, the process of determining, by the UE, the interference condition of the normal downlink mode according to the signal characteristics corresponding to each synchronization signal block may include the following steps:
Specifically, the method comprises the following steps: when the received power RSRP corresponding to the synchronization signal block SSB is smaller, it indicates that the UE is located near the cell edge. And if the received power RSRP is larger, indicating that the UE is positioned close to the center of the cell. When the signal to interference noise ratio SINR (received signal quality RSRQ) corresponding to the synchronization signal block SSB is relatively low, it indicates that the interference is serious. If the signal-to-interference-and-noise ratio SINR (received signal quality RSRQ) is higher, the situation of interference is lighter.
Based on the above principle, in the embodiment of the present application, the power threshold is defined as SS-RSRP _ threshold, the signal to interference plus noise ratio threshold is defined as SS-SINR _ threshold, and the signal quality threshold is defined as SS-RSRQ _ threshold.
In the plurality of synchronization signal blocks, when the received power of the synchronization signal block SSB is greater than or equal to the power threshold SS-RSRP _ threshold and the signal to interference plus noise ratio SINR of the synchronization signal block SSB is less than or equal to the signal to interference plus noise ratio threshold SS-SINR _ threshold, for each synchronization signal block, it is determined that the synchronization signal block SSB has a relatively serious downlink interference as shown in formula (1).
SS-RSRP ≧ SS-RSRP _ threshold and SS-SINR ≦ SS-SINR _ threshold equation (1).
Or, in each of the plurality of synchronization signal blocks, when the received power of the synchronization signal block SSB is greater than or equal to the power threshold SS-RSRP _ threshold and the received signal quality SS-RSRQ of the synchronization signal block SSB is less than or equal to the signal quality threshold SS-RSRQ _ threshold, it is determined that the synchronization signal block SSB has a relatively serious downlink interference as shown in formula (2).
SS-RSRP is not less than SS-RSRP _ threshold and SS-RSRQ is not less than SS-RSRQ _ threshold formula (2).
In the above formula (1) and formula (2), the UE may randomly select one of the two as a basis for determining whether the synchronization signal block has interference.
It should be noted that, in the embodiment of the present application, when the synchronization signal block SSB can be correctly analyzed, the signal characteristic of the synchronization signal block SSB can be obtained. When the synchronization signal block SSB is not correctly analyzed, the signal characteristics of the synchronization signal block SSB cannot be obtained. Alternatively, when the synchronization signal block SSB fails to be correctly resolved, the synchronization signal block SSB may be considered to have interference.
In an optional implementation manner, the power threshold is SS-RSRP _ threshold, the signal to interference plus noise ratio threshold is SS-SINR _ threshold, and the signal quality threshold is SS-RSRQ _ threshold may be preset and stored in the UE, and the UE may call the power threshold, the signal to interference plus noise ratio threshold, and the signal quality threshold to determine whether the synchronization signal block has interference.
In another optional implementation manner, the power threshold is SS-RSRP _ threshold, the signal to interference plus noise ratio threshold is SS-SINR _ threshold, and the signal quality threshold is SS-RSRQ _ threshold, may also be sent by the base station to the UE through a system message.
Specifically, after sending the SSB to the UE, the base station may directly send a system message to the UE. Alternatively, the base station transmits a system message to the UE before the UE determines the interfering synchronization signal block from the at least one synchronization signal block. The system message carries a power threshold, a signal to interference plus noise ratio threshold, and a signal quality threshold.
The interference ratio is used for representing the interference condition of the common downlink mode.
In an alternative implementation, the UE may calculate the interference ratio according to a ratio of the number of the synchronization signal blocks SSB in which interference exists to the total number of the received at least one synchronization signal block SSB.
Specifically, in step 501, the UE may count the determined synchronization signal blocks SSB with interference to obtain the number of the synchronization signal blocks SSB with interference.
Meanwhile, the UE may also obtain a total number of the received at least one synchronization signal block SSB.
The ratio of the number of synchronization signal blocks SSB in which interference exists in the total number of the received at least one synchronization signal block SSB, i.e., the interference ratio, is thus calculated. The interference ratio is the ratio of the interfered synchronization signal block in the received synchronization signal block in the normal downlink mode, and therefore, the interference ratio can represent the interfered condition corresponding to the normal downlink mode. The larger the interference ratio is, the more the number of the synchronization signal blocks indicating the existence of interference is, and the more serious the interference degree received by the downlink corresponding to the normal downlink mode is. The smaller the interference ratio, the smaller the number of synchronization signal blocks indicating the presence of interference, and the smaller the degree of interference received by the downlink corresponding to the normal downlink scheme.
In an alternative implementation manner, as shown in fig. 6, the process of determining the interference ratio by the UE according to the number of the synchronization signal block data packets with interference may include the following steps:
Specifically, for the situation where there is interference or there is no interference corresponding to each synchronization signal block SSB, a bitmap (bitmap) mode may be used for marking. For example, a label of "1" indicates the presence of interference, and a label of "0" indicates the absence of interference.
Based on the above principle, when an SSB is correctly resolved and does not satisfy formula (1) and formula (2), the interference bitmap corresponding to the SSB is marked as "0". When an SSB fails to demodulate correctly, the interference bitmap corresponding to the SSB may be marked as "1" or may not be marked. For example, the UE receives 10 SSBs, and the interference array a formed by the obtained bitmap is "0010000111", and it can be seen from the interference array a that interference exists in the 3 rd, 8 th, 9 th, and 10 th SSBs.
Based on the interference array a, the UE may calculate the ratio of "1" in the interference array a in the whole interference array a, i.e. the interference ratio P, which may be shown in equation (3).
Wherein, A [ i ]]And the value corresponding to the ith bitmap in the interference array A is represented.
Representing the sum of the values corresponding to all the bitmaps in the interference array a.
According to the formula (3), the interference ratio corresponding to the interference array a is calculated to be 40%.
Wherein, the target uplink mode is any one of a normal uplink mode and a supplementary uplink mode.
Specifically, the interference condition of the normal downlink mode may represent an interference level of the normal downlink mode. The UE may determine the interference level of the common uplink mode according to the interference level of the common downlink mode by using the symmetric reciprocity between the uplink channel and the downlink channel. For example: when the interference degree of the common downlink mode is larger, the interference degree of the common uplink mode is larger; when the interference degree of the common downlink mode is smaller, the interference degree of the common uplink mode is smaller.
In an optional implementation manner, the process of determining, by the UE, the target uplink mode according to the interference condition of the common downlink mode may be:
when the interference ratio is greater than or equal to the interference ratio threshold, determining the supplementary uplink mode as a target uplink mode; and when the interference ratio is smaller than the interference ratio threshold value, determining the common uplink mode as a target uplink mode.
Specifically, an interference ratio threshold is defined, and when the interference ratio is greater than or equal to the ratio threshold, it indicates that a relatively serious downlink interference exists in the normal downlink mode, and correspondingly, a relatively serious uplink interference also exists in the normal uplink mode, so that the UE determines the supplemental uplink mode as the target uplink mode and transmits uplink data based on the supplemental uplink mode.
When the interference ratio is smaller than the ratio threshold, it indicates that the downlink interference existing in the common downlink mode is smaller, and the interference existing in the corresponding common uplink mode is also smaller, so that the UE determines the common uplink mode as the target uplink mode, and transmits uplink data based on the common uplink mode.
In an alternative implementation, the ratio threshold may be preset and stored in the UE, and the UE may call the ratio threshold to determine the interference condition of the normal downlink mode.
In another optional implementation manner, the ratio threshold may also be sent to the UE by the base station through a system message. Specifically, after sending the SSB to the UE, the base station may directly send a system message to the UE. Or the base station sends the system message to the UE before the UE determines the target uplink mode according to the interference condition of the common downlink mode. The scale threshold is carried in the system message.
The uplink access interference avoiding method provided by the embodiment of the application can effectively avoid strong interference signals. In the method, UE receives at least one synchronous signal block broadcasted by a base station in a common downlink mode, and determines the interference condition of the common downlink mode according to the signal characteristics respectively corresponding to each synchronous signal block, wherein the signal characteristics comprise receiving power, signal-to-interference-and-noise ratio and receiving signal quality. Then, the UE may determine a target uplink mode according to the interference condition of the normal downlink mode, where the target uplink mode is any one of the normal uplink mode and the supplemental uplink mode, and the UE may transmit uplink data based on the target uplink mode. Therefore, in the embodiment of the present application, the UE may determine the interference level of the common uplink mode according to the interference level of the common downlink mode by using the symmetric reciprocity between the uplink channel and the downlink channel. When the interference degree of the common downlink mode is larger, the interference degree of the common uplink mode is larger; when the interference degree of the common downlink mode is smaller, the interference degree of the common uplink mode is smaller. Therefore, when the interference ratio is greater than or equal to the ratio threshold, that is, when the normal downlink mode has severe downlink interference, the UE determines the supplemental uplink mode as the target uplink mode and transmits uplink data based on the supplemental uplink mode. And when the interference proportion is smaller than the proportion threshold value, namely when the downlink interference of the common downlink mode is small, the UE determines the common uplink mode as a target uplink mode and transmits uplink data based on the common uplink mode. Therefore, the uplink mode adopted by the UE is determined according to the interference degree of the uplink mode, and compared with the uplink mode adopted by the UE determined according to the position of the UE in the cell in the prior art, the method and the device for determining the uplink mode can effectively avoid strong interference signals.
Referring to fig. 7, a block diagram of an uplink access interference avoiding apparatus provided in an embodiment of the present application is shown, where the uplink access interference avoiding apparatus may be configured in the implementation environment shown in fig. 1. As shown in fig. 7, the uplink access interference avoiding apparatus may include a receiving module 701, an interference analyzing module 702, and an uplink mode determining module 703, where:
a receiving module 701, configured to receive at least one synchronization signal block broadcast by a base station in a normal downlink manner;
an interference analysis module 702, configured to determine an interference condition of a common downlink mode according to signal characteristics corresponding to each synchronization signal block, where the signal characteristics include a received power, a signal-to-interference-and-noise ratio, and a received signal quality;
an uplink mode determining module 703 is configured to determine a target uplink mode according to the interference condition of the normal downlink mode, and transmit uplink data based on the target uplink mode, where the target uplink mode is any one of the normal uplink mode and the supplemental uplink mode.
In an embodiment of the present application, the interference analysis module 702 is further configured to determine, according to a signal characteristic corresponding to each synchronization signal block, a synchronization signal block with interference from at least one synchronization signal block;
and determining an interference ratio according to the number of the data packets of the synchronous signal blocks with interference, wherein the interference ratio is used for representing the interference condition of a common downlink mode.
In an embodiment of the present application, the uplink mode determining module 703 is further configured to determine, when the interference ratio is greater than or equal to the interference ratio threshold, the supplementary uplink mode as the target uplink mode;
and when the interference ratio is smaller than the interference ratio threshold value, determining the common uplink mode as a target uplink mode.
In an embodiment of the present application, the uplink mode determining module 703 is further configured to receive an interference ratio threshold sent by the base station.
In an embodiment of the present application, the interference analysis module 702 is further configured to, for each synchronization signal block, determine that the synchronization signal block has interference when the received power of the synchronization signal block is greater than or equal to a power threshold and the signal to interference plus noise ratio of the synchronization signal block is less than or equal to a signal to interference plus noise ratio threshold;
or, for each synchronization signal block, when the received power of the synchronization signal block is greater than or equal to the power threshold and the received signal quality of the synchronization signal block is less than or equal to the signal quality threshold, determining that the synchronization signal block has interference.
In an embodiment of the present application, the interference analysis module 702 is further configured to receive a power threshold, a signal to interference plus noise ratio threshold, and a signal quality threshold transmitted by the base station.
In an embodiment of the present application, the interference analysis module 702 is further configured to label each synchronization signal block according to whether there is interference in each synchronization signal block, so as to obtain an interference array corresponding to a common downlink manner;
and calculating the interference ratio according to the interference array corresponding to the common downlink mode.
In one embodiment of the present application, there is provided a computer device comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:
receiving at least one synchronous signal block broadcasted by a base station in a common downlink mode; determining the interference condition of a common downlink mode according to the signal characteristics respectively corresponding to each synchronous signal block, wherein the signal characteristics comprise received power, signal-to-interference-and-noise ratio and received signal quality; and determining a target uplink mode according to the interference condition of the common downlink mode, and transmitting uplink data based on the target uplink mode, wherein the target uplink mode is any one of the common uplink mode and the supplementary uplink mode.
In one embodiment of the application, the processor when executing the computer program may further implement the steps of: determining a synchronous signal block with interference from at least one synchronous signal block according to the signal characteristics corresponding to each synchronous signal block; and determining an interference ratio according to the number of the data packets of the synchronous signal blocks with interference, wherein the interference ratio is used for representing the interference condition of a common downlink mode.
In one embodiment of the application, the processor when executing the computer program may further implement the steps of: when the interference ratio is greater than or equal to the interference ratio threshold, determining the supplementary uplink mode as a target uplink mode; and when the interference ratio is smaller than the interference ratio threshold, determining the common uplink mode as a target uplink mode.
In one embodiment of the application, the processor when executing the computer program may further implement the steps of: and receiving an interference ratio threshold value sent by the base station.
In one embodiment of the application, the processor when executing the computer program may further implement the steps of: aiming at each synchronous signal block, when the receiving power of the synchronous signal block is more than or equal to a power threshold value and the signal-to-interference-and-noise ratio of the synchronous signal block is less than or equal to a signal-to-interference-and-noise ratio threshold value, determining that the synchronous signal block has interference; or, for each synchronization signal block, when the received power of the synchronization signal block is greater than or equal to the power threshold and the received signal quality of the synchronization signal block is less than or equal to the signal quality threshold, determining that the synchronization signal block has interference.
In one embodiment of the application, the processor when executing the computer program may further implement the steps of: and receiving a power threshold, a signal-to-interference-and-noise ratio threshold and a signal quality threshold which are sent by the base station.
In one embodiment of the application, the processor when executing the computer program may further implement the steps of: marking each synchronous signal block according to whether the synchronous signal block has interference or not to obtain an interference array corresponding to a common downlink mode; and calculating the interference ratio according to the interference array corresponding to the common downlink mode.
The implementation principle and technical effect of the computer device provided by the embodiment of the present application are similar to those of the method embodiment described above, and are not described herein again.
In an embodiment of the application, a computer-readable storage medium is provided, on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of:
receiving at least one synchronous signal block broadcasted by a base station in a common downlink mode; determining the interference condition of a common downlink mode according to the signal characteristics respectively corresponding to each synchronous signal block, wherein the signal characteristics comprise received power, signal-to-interference-and-noise ratio and received signal quality; and determining a target uplink mode according to the interference condition of the common downlink mode, and transmitting uplink data based on the target uplink mode, wherein the target uplink mode is any one of the common uplink mode and the supplementary uplink mode.
In one embodiment of the application, the computer program, when executed by the processor, may further implement the steps of: determining a synchronous signal block with interference from at least one synchronous signal block according to the signal characteristics corresponding to each synchronous signal block; and determining an interference ratio according to the number of the data packets of the synchronous signal block with interference, wherein the interference ratio is used for representing the interference condition of a common downlink mode.
In one embodiment of the application, the computer program, when executed by the processor, may further implement the steps of: when the interference ratio is greater than or equal to the interference ratio threshold, determining the supplementary uplink mode as a target uplink mode; and when the interference ratio is smaller than the interference ratio threshold value, determining the common uplink mode as a target uplink mode.
In one embodiment of the application, the computer program, when executed by the processor, may further implement the steps of: and receiving an interference ratio threshold value sent by the base station.
In one embodiment of the application, the computer program, when executed by the processor, may further implement the steps of: aiming at each synchronous signal block, when the receiving power of the synchronous signal block is more than or equal to a power threshold value and the signal to interference and noise ratio of the synchronous signal block is less than or equal to a signal to interference and noise ratio threshold value, determining that the synchronous signal block has interference; or, for each synchronization signal block, when the received power of the synchronization signal block is greater than or equal to the power threshold and the received signal quality of the synchronization signal block is less than or equal to the signal quality threshold, determining that the synchronization signal block has interference.
In one embodiment of the application, the computer program, when executed by the processor, may further implement the steps of: and receiving a power threshold, a signal-to-interference-and-noise ratio threshold and a signal quality threshold which are sent by the base station.
In one embodiment of the application, the computer program, when executed by the processor, may further implement the steps of: marking each synchronous signal block according to whether the synchronous signal block has interference or not to obtain an interference array corresponding to a common downlink mode; and calculating the interference ratio according to the interference array corresponding to the common downlink mode.
The implementation principle and technical effect of the computer-readable storage medium provided in the embodiment of the present application are similar to those of the method embodiment described above, and are not described herein again.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), rambus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several implementation modes of the present application, and the description thereof is specific and detailed, but not construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An uplink access interference avoidance method, the method comprising:
receiving at least one synchronous signal block broadcasted by a base station in a common downlink mode;
analyzing the at least one synchronous signal block, and if the synchronous signal block is analyzed correctly, acquiring the signal characteristics of the synchronous signal block aiming at any synchronous signal block; if the synchronous signal block is not analyzed correctly, determining that the synchronous signal block has interference;
determining a synchronous signal block with interference from the at least one synchronous signal block according to the signal characteristics corresponding to each synchronous signal block; the signal characteristics comprise received power, signal-to-interference-and-noise ratio and received signal quality;
determining an interference ratio according to the number of the data packets of the synchronous signal blocks with interference, wherein the interference ratio is used for representing the interference condition of the common downlink mode;
and determining a target uplink mode according to the interference condition of the common downlink mode, and transmitting uplink data based on the target uplink mode, wherein the target uplink mode is any one of the common uplink mode and the supplementary uplink mode.
2. The method of claim 1, wherein the determining a target uplink mode according to the interference condition of the normal downlink mode comprises:
when the interference ratio is greater than or equal to an interference ratio threshold, determining a supplementary uplink mode as the target uplink mode;
and when the interference ratio is smaller than the interference ratio threshold, determining a common uplink mode as the target uplink mode.
3. The method according to claim 2, wherein before determining the target uplink mode according to the interference condition of the normal downlink mode, the method further comprises:
and receiving the interference ratio threshold value sent by the base station.
4. The method according to claim 1 or 2, wherein the determining the synchronization signal block with interference from the at least one synchronization signal block according to the signal characteristics corresponding to the synchronization signal blocks comprises:
for each synchronization signal block, when the received power of the synchronization signal block is greater than or equal to a power threshold and the signal-to-interference-and-noise ratio of the synchronization signal block is less than or equal to a signal-to-interference-and-noise ratio threshold, determining that the synchronization signal block has interference;
or, for each of the synchronization signal blocks, when the received power of the synchronization signal block is greater than or equal to the power threshold and the received signal quality of the synchronization signal block is less than or equal to the signal quality threshold, determining that the synchronization signal block has interference.
5. The method of claim 4, wherein before determining the interfering sync signal block from the at least one sync signal block according to the signal characteristics corresponding to the respective sync signal blocks, the method further comprises:
and receiving the power threshold, the signal-to-interference-and-noise ratio threshold and the signal quality threshold sent by the base station.
6. The method of claim 1 or 2, wherein the determining the interference ratio according to the number of the synchronization signal blocks with interference comprises:
marking each synchronous signal block according to whether the synchronous signal block has interference or not to obtain an interference array corresponding to a common downlink mode;
and calculating the interference ratio according to the interference array corresponding to the common downlink mode.
7. An uplink access interference avoidance apparatus, the apparatus comprising:
a receiving module, configured to receive at least one synchronization signal block broadcast by a base station in a normal downlink manner;
the interference analysis module is used for analyzing the at least one synchronous signal block, and for any synchronous signal block, if the synchronous signal block is analyzed correctly, the signal characteristics of the synchronous signal block are obtained; if the synchronous signal block is not correctly analyzed, determining that the synchronous signal block has interference; determining a synchronization signal block with interference from the at least one synchronization signal block according to the signal characteristics corresponding to each synchronization signal block; the signal characteristics comprise received power, signal-to-interference-and-noise ratio and received signal quality; determining an interference ratio according to the number of the data packets of the synchronous signal block with interference, wherein the interference ratio is used for representing the interference condition of the common downlink mode;
and the uplink mode determining module is used for determining a target uplink mode according to the interference condition of the common downlink mode and transmitting uplink data based on the target uplink mode, wherein the target uplink mode is any one of the common uplink mode and the supplementary uplink mode.
8. The apparatus of claim 7, wherein the uplink mode determining module comprises:
when the interference ratio is greater than or equal to an interference ratio threshold, determining a supplementary uplink mode as the target uplink mode;
and when the interference ratio is smaller than the interference ratio threshold, determining a common uplink mode as the target uplink mode.
9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method of any of claims 1 to 6.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 6.
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