CN108112025B

CN108112025B - Method and system for notifying interference information

Info

Publication number: CN108112025B
Application number: CN201711298808.2A
Authority: CN
Inventors: 彭岳峰; 周雄; 刘丽发
Original assignee: Guangzhou Haige Communication Group Inc Co
Current assignee: Guangzhou Haige Communication Group Inc Co
Priority date: 2017-12-08
Filing date: 2017-12-08
Publication date: 2021-03-30
Anticipated expiration: 2037-12-08
Also published as: CN108112025A

Abstract

The present invention relates to the field of wireless communication technologies, and in particular, to a method and a system for notifying interference information. Acquiring the initial position and the end position of an interference resource block currently communicating with a user terminal; acquiring interference information notification information according to the initial position and the end position of the interference resource block, wherein at least one bit of the interference information notification information records a basic representation flag bit, at least two bits record the initial position of the interference resource block, and at least two bits record the end position of the interference resource block; and sending the interference information notification information to the user terminal for analysis so that the user terminal can obtain the current interference information. In the scheme, the interference information notification information saves the description of the resource block without the narrow-band interference, reduces error information and enables the interference condition of the resource block in the system bandwidth to be more accurately notified to the user terminal.

Description

Method and system for notifying interference information

Technical Field

The present invention relates to the field of wireless communication technologies, and in particular, to a method and a system for notifying interference information.

Background

In the field of dedicated communication, a Long Term Evolution (LTE) system often has strong narrowband interference, which is often narrowband interference of an alien system, such as malicious interference. Under the condition of strong narrowband interference, the base station needs to acquire interference information in a working frequency band through scanning, and sends the interference information to the user terminal through broadcast information, so that the user terminal can obtain an interference detection result, thereby realizing frequency spectrum shifting of a control signal, avoiding interference, and realizing a more refined scheduling strategy.

The inventor finds that, in the conventional communication technology, the base station mainly uses 10 bits reserved in a Master Information Block (MIB) to notify the user terminal of the interference Information, where the 10 bits uniformly represent the interference of Resource Blocks (RBs) under different bandwidths. For example, in the case of 20MHz, there are 100 resource blocks in total, and 1bit indicates an interference situation of 10 resource blocks (for example, 1 indicates interference, and 0 indicates no interference). However, if there are some resource blocks with narrowband interference in the resource block, no matter the bit is 1, which indicates that there is narrowband interference in the resource block, or the bit is 0, which indicates that there is no narrowband interference in the resource block, there will be error information of multiple resource blocks, and it is difficult to accurately notify the user terminal of the interference situation of the resource block in the system bandwidth.

Disclosure of Invention

Therefore, it is necessary to provide a method and a system for notifying interference information, aiming at the problem that the conventional interference information identification method has a large error and cannot accurately notify the user terminal of the interference situation of the resource block in the system bandwidth.

A method for notifying interference information comprises the following steps:

acquiring the initial position and the terminal position of an interference resource block currently communicating with a user terminal;

acquiring interference information notification information according to the initial position and the end position of the interference resource block, wherein at least one bit of the interference information notification information records a basic representation flag bit, at least two bits of the interference information notification information records the initial position of the interference resource block, and at least two bits of the interference information notification information records the end position of the interference resource block;

and sending the interference information notification information to the user terminal for analysis so that the user terminal can obtain the current interference information.

According to the method for notifying the interference information, the interference information notification information carrying the initial position information and the end position information of the interference resource block is transmitted to the user terminal, wherein the description of the resource block without the narrow-band interference is saved by the interference information notification information, and the error information is reduced, so that the interference condition of the resource block in the system bandwidth can be more accurately notified to the user terminal.

In one embodiment, the first n bits of the interference information notification information record the basic characterization flag bit, bits n +1 to m record the start position of the interference resource block, bits m +1 to l record the end position of the interference resource block, n is greater than or equal to 1, m is greater than or equal to 3, l is greater than or equal to 5, and m > n +1, l > m +1, l represents the total number of bits of the interference information notification information.

In one embodiment, the step of sending the interference information notification information to the user terminal for analysis includes the following steps:

and transmitting the interference information notification information to the user terminal for analysis in the reserved bit of the main system information block.

In one embodiment, the step of obtaining a starting position and an ending position of an interference resource block currently communicating with a user terminal includes the following steps:

acquiring interference power of a resource block currently communicating with a user terminal;

judging whether each resource block has narrow-band interference according to the interference power;

if the resource block has narrow-band interference, judging the resource block to be an interference resource block;

and acquiring the initial position and the end position of the interference resource block.

In one embodiment, the step of determining whether there is narrowband interference in each resource block according to the interference power includes the following steps:

obtaining an average value of interference power within a preset time threshold according to the interference power;

judging that the average interference power value is larger than a preset interference power threshold value;

if so, judging that the resource block has interference; otherwise, judging that the resource block has no interference.

In one embodiment, the step of obtaining the interference information notification information according to the starting position and the ending position of the interference resource block includes the following steps:

dividing each resource block into 2^m-nEqually dividing to obtain a quantized value corresponding to the initial position value of the interference resource block;

converting the quantized value into a binary value of m-n bits as a value of the n + 1-m bits;

dividing all resource blocks into 2^l-mEqually dividing to obtain a quantized value corresponding to the termination position value of the interference resource block;

and converting the quantized value into a binary value of l-m bits as the value of the m + 1-l bits.

In one embodiment, the method for notifying the interference information further includes the following steps:

acquiring initial position correction information and termination position correction information of the interference resource block according to the initial position and termination position of the interference resource block and the interference information notification information;

acquiring interference information correction information according to the initial position correction information and the end position correction information; at least one bit in the interference information correction information records a correction characterization flag bit, at least two bits record the initial position correction information of the interference resource block, and at least two bits record the final position correction information of the interference resource block;

and sending the interference information correction information to the user terminal for analysis so that the user terminal corrects the obtained interference information.

In one embodiment, a correction characterization flag is recorded at n bits before the interference information correction information, bits n +1 to m record the start position correction information of the interference resource block, bits m +1 to l record the end position correction information of the interference resource block, n is greater than or equal to 1, m is greater than or equal to 3, l is greater than or equal to 5, and m is greater than n +1, l is greater than m +1, and l represents the total number of bits of the interference information correction information.

In one embodiment, the starting position correction information comprises a starting position correction value and a starting position correction direction, and the ending position correction information comprises an ending position correction value and an ending position correction direction;

in the n + 1-m bits, the n + 1bit records the correction direction of the initial position, and the n + 2-m bits records the correction value of the initial position; in the m + 1-l bit positions, the m + 1bit position records the correction direction of the termination position, and the m + 2-l bit positions record the correction value of the termination position.

A method for acquiring interference information comprises the following steps:

receiving interference information notification information sent by a currently connected base station; at least one bit in the interference information notification information records a basic representation flag bit, at least two bits record the initial position of the interference resource block, and at least two bits record the end position of the interference resource block;

and analyzing the interference information notification information to obtain the current interference information.

According to the method for acquiring the interference information, the interference information notification information which is sent by the base station and carries the initial position information and the termination position information of the interference resource block is received, wherein the interference information notification information saves the description of the resource block without the narrow-band interference, and reduces the error information, so that the user terminal can accurately acquire the interference condition of the resource block in the system bandwidth.

In one embodiment, the method for acquiring interference information further includes the following steps:

receiving interference information correction information sent by a currently connected base station; at least one bit in the interference information correction information records a correction characterization flag bit, at least two bits record the initial position correction information of the interference resource block, and at least two bits record the final position correction information of the interference resource block;

and analyzing the interference information correction information, and correcting the current interference information.

A system for notification of interference information, comprising:

the system comprises an interference information acquisition module, a resource allocation module and a resource allocation module, wherein the interference information acquisition module is used for acquiring the initial position and the terminal position of an interference resource block which is currently communicated with a user terminal;

an interference information notification information obtaining module, configured to obtain interference information notification information according to an initial position and an end position of the interference resource block, where at least one bit of the interference information notification information records a basic representation flag bit, at least two bits of the interference information notification information records the initial position of the interference resource block, and at least two bits of the interference information notification information records the end position of the interference resource block;

and the interference information notification module is used for sending the interference information notification information to the user terminal for analysis so that the user terminal can obtain the current interference information.

In the system for notifying the interference information, the interference information notification information acquisition module acquires the interference information notification information according to the initial position and the end position of the interference resource block acquired by the interference information acquisition module to generate the interference information notification information, and the interference information notification information is issued to the user terminal through the interference information notification module, wherein the interference information notification information saves the description of the resource block without the narrow-band interference, reduces error information, and enables the user terminal to be notified of the interference condition of the resource block in the system bandwidth more accurately.

A system for obtaining interference information, comprising:

the interference information receiving module is used for receiving the interference information notification information sent by the currently connected base station; at least one bit in the interference information notification information records a basic representation flag bit, at least two bits record the initial position of the interference resource block, and at least two bits record the end position of the interference resource block;

and the interference information analysis module is used for analyzing the interference information notification information to obtain the current interference information.

The system for acquiring the interference information acquires and analyzes the interference information notification information acquired by the interference information receiving module through the interference information analyzing module, wherein the interference information notification information saves the description of the resource block without the narrow-band interference, reduces error information, and enables a user terminal to accurately acquire the interference condition of the resource block in the system bandwidth.

A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of notifying of interference information as described above when executing the computer program.

The computer device transmits interference information notification information carrying initial position information and termination position information of the interference resource block to the user terminal through a computer program running on the processor, wherein the interference information notification information saves description of the resource block without narrowband interference and reduces error information, so that the user terminal is notified of the interference condition of the resource block in the system bandwidth more accurately.

A computer storage medium on which a computer program is stored, which when executed by a processor, implements the method of notifying the interference information as described above.

The computer storage medium transmits interference information notification information carrying initial position information and termination position information of an interference resource block to a user terminal through a computer program stored in the computer storage medium, wherein the interference information notification information saves description of the resource block without narrowband interference and reduces error information, so that the user terminal is notified of the interference condition of the resource block in a system bandwidth more accurately.

A computer device comprises a memory, a processor and a computer program stored on the memory and operable on the processor, wherein the processor implements the method for obtaining interference information as described above when executing the computer program.

The computer device obtains the interference information notification information which is sent by the base station and carries the initial position information and the termination position information of the interference resource block through the computer program running on the processor, wherein the interference information notification information saves the description of the resource block without the narrow-band interference and reduces the error information, so that the user terminal can accurately know the interference condition of the resource block in the system bandwidth.

A computer storage medium having stored thereon a computer program which, when executed by a processor, implements the method of acquiring interference information as described above.

The computer storage medium obtains, through a computer program stored in the computer storage medium, interference information notification information which is sent by a base station and carries starting position information and ending position information of an interference resource block, wherein the interference information notification information saves description of the resource block without narrowband interference, and reduces error information, so that a user terminal can accurately know the interference condition of the resource block in a system bandwidth.

Drawings

Fig. 1 is a flowchart of a method for notifying interference information according to an embodiment of the present invention;

fig. 2 is a frame format of an interference information notification message according to an embodiment of the present invention;

fig. 3 is a flowchart of a method for notifying interference information according to another embodiment of the present invention;

fig. 4 is a flowchart of a method for notifying interference information according to another embodiment of the present invention;

fig. 5 is a flowchart of a method for notifying interference information according to another embodiment of the present invention;

fig. 6 is a frame format of interference information correction information according to an embodiment of the present invention;

fig. 7 is a flowchart of an interference information obtaining method according to an embodiment of the present invention;

fig. 8 is a flowchart of an interference information obtaining method according to another embodiment of the present invention;

fig. 9 is a schematic structural diagram of a system for notifying interference information according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a system for notifying interference information according to another embodiment of the present invention;

fig. 11 is a schematic structural diagram of an interference information acquisition system according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of an interference information acquisition system according to another embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of the invention.

Referring to fig. 1, fig. 1 is a flowchart of a method for notifying interference information according to an embodiment of the present invention. The method for notifying the interference information in the embodiment includes the following steps:

step S110: and acquiring the initial position and the end position of the interference resource block currently communicating with the user terminal.

In this step, the interference resource block refers to a resource block with narrowband interference, and when narrowband interference exists in the system bandwidth, the interference resource block often affects a certain frequency band in the bandwidth, and corresponds to the resource block, that is, several consecutive resource blocks are affected by the narrowband interference. By knowing the position of the starting interfering resource block and the position of the terminating interfering resource block, the information of the narrowband interference can be determined.

Step S120: and acquiring interference information notification information according to the initial position and the end position of the interference resource block, wherein at least one bit of the interference information notification information records a basic representation flag bit, at least two bits of the interference information notification information records the initial position of the interference resource block, and at least two bits of the interference information notification information records the end position of the interference resource block.

Step S130: and sending the interference information notification information to the user terminal for analysis so that the user terminal can obtain the current interference information.

In the embodiment, the interference information notification information carrying the initial position information and the end position information of the interference resource block is transmitted to the user terminal, wherein the description of the resource block without the narrow-band interference is saved by the interference information notification information, and the error information is reduced, so that the user terminal is more accurately notified of the interference condition of the resource block in the system bandwidth.

Specifically, when a strong narrowband continuous interference signal exists in the system, the base station may obtain a frequency band in which interference exists in a system bandwidth through interference scanning, where the frequency bands with different bandwidths correspond to different resource blocks, that is, the base station may obtain an initial position and an end position of the resource block in which the narrowband interference signal exists, and transmit the initial position and the end position to the user terminal through the interference information notification information, so that the interference information is notified to the user terminal. The first part records a basic representation flag bit by using at least one bit, the second part records the initial position of the interference resource block by using at least two bits, and the third part records the end position of the interference resource block by using at least two bits. The scheme can save the description of the frequency band without interference information, so that the interference information notification information can more accurately represent the position of the narrow-band interference in the system bandwidth, and the base station and the user terminal can accurately know the interference condition, thereby improving the reliability of system transmission and improving the utilization efficiency of time-frequency resources.

For example, when the user terminal is not networked yet, the interference information notification information can be received, and after the interference information is analyzed, the base station and the user terminal can uniformly recognize the interference information, the base station can schedule the time-frequency resource when transmitting the downlink control signal, avoid the bandwidth with strong narrowband interference, help the user terminal to successfully demodulate the downlink control signal, and establish a wireless link access cell.

Alternatively, the starting position and the ending position of the interfering resource block may be recorded by the same number of bits.

In one embodiment, the first n bits of the interference information notification information record basic characterization flag bits, the n + 1-m bits record the starting position of the interference resource block, the m + 1-l bits record the ending position of the interference resource block, n is greater than or equal to 1, m is greater than or equal to 3, l is greater than or equal to 5, and m > n +1, l is greater than m +1, l represents the total number of bits of the interference information notification information.

In this embodiment, as shown in fig. 2, a basic representation flag is recorded in the interference information notification information by using bits from 1 to n, which indicates that the information is interference information notification information, a starting position of a resource block with narrowband interference is recorded by using bits from n +1 to m, that is, a starting position of the interference is represented, and an ending position of the resource block with narrowband interference is recorded by using bits from m +1 to l, that is, an ending position of the interference is represented, where a value range of l cannot exceed a total number of bits that can be used for transmitting the interference information notification information in the system. The interference information notification information saves the description of the resource block without the narrow-band interference and reduces the error information, so that the interference condition of the resource block in the system bandwidth can be more accurately notified to the user terminal.

The present embodiment will be described below by taking n-2, m-6, and l-10 as examples.

The bit number of the interference information notification information is 10 bits, wherein, the 1 st and 2 nd bit record basic representation flag bits, which indicate that the information is the interference information notification information, the 3 rd to 6 th bit record the starting position of the resource block with the narrow-band interference, and the 7 th to 10 th bit record the ending position of the resource block with the narrow-band interference. Generally, n is a characterization flag bit to characterize what information this information is, and the larger m, the more bits, the more clear the starting position of the interference resource block, and the larger l, the more bits, the more clear the ending position of the interference resource block. By saving the description of the resource block without the narrow-band interference, the error information is reduced, so that the interference condition of the resource block in the system bandwidth can be more accurately notified to the user terminal.

Referring to fig. 3, fig. 3 is a flowchart of a method for notifying interference information according to another embodiment of the present invention. In this embodiment, the step of obtaining the interference information notification information according to the starting position and the ending position of the interference resource block includes the following steps:

step S121: dividing each resource block into 2^m-nEqually dividing to obtain a quantized value corresponding to the initial position value of the interference resource block;

step S122: converting the quantized value into a binary value of m-n bits as a value of n + 1-m bits;

step S123: dividing all resource blocks into 2^l-mEqually dividing to obtain a quantized value corresponding to the termination position value of the interference resource block;

step S124: and converting the quantized value into a binary value of l-m bits as a value of m + 1-l bits.

In this embodiment, resource blocks within the system bandwidth may be divided into 2 according to the m-n values^m-nEqually dividing to obtain the initial position of the interference resource block, quantizing the position to binary value as the value of n + 1-m bit, and equally dividing the resource block in the system bandwidth into 2 according to the value of l-m^l-mEqually dividing to obtain the binary value quantization value of the termination position of the interference resource block as the value of m + 1-l bit positions, and the rest bitsThe bit information does not represent information before the initial position, so that the description of a resource block without interference information can be saved, and the position and the length of interference can be more accurately represented.

The present embodiment will be further described with reference to n-2, m-6 and l-10. When the system bandwidth is 20MHz, a total of 100 resource blocks are in the bandwidth. When n is 2, 2-bit bits are used as the flag bits, for example, "11" may be used as the basic flag bit, and this information is the interference information notification information. When m is 6, the starting position is quantized by 4 bits, and the bandwidth of the system can be divided into 16 equal parts, that is, 100 resource blocks in the system can be divided into 16 equal parts, each part is 6 resource blocks, and the last 4 resource blocks are also grouped into the last group. Assume that the start position is equal to 4 th part, i.e. the value of 4-bit of the start position is 0100. When l is equal to 10, the termination position is also quantized with 4-bit bits, and it is assumed that the termination position is equal to 5 th part, i.e. the 4-bit value of the termination position is 0101. The interference information notification message is 1101000101, which indicates that there is interference in the 24 th to 30 th resource blocks,

and transmitting the interference information notification information in the reserved bit of the main system information block to the user terminal for analysis.

In this embodiment, the interference information notification information is transmitted by using the reserved bits in the main system information block, and the interference information is effectively and accurately notified to the user terminal without increasing the overhead of air interface resources.

The interference information notification information can be sent through a common air interface resource, the number of bits available in the LTE system is very limited, a reserved bit with the bit number of 10 is provided in a main system information block, the base station can use the reserved 10 bits to send the interference information notification information to the user terminal, and the interference information can be notified to the user terminal without increasing the overhead of the air interface resource.

Referring to fig. 4, fig. 4 is a flowchart of a method for notifying interference information according to another embodiment of the present invention. In this embodiment, the step of obtaining the starting position and the ending position of the interference resource block currently communicating with the user terminal includes the following steps:

step S111: acquiring interference power of a resource block currently communicating with a user terminal;

step S112: judging whether each resource block has narrow-band interference according to the interference power;

step S113: if the resource block has narrow-band interference, judging the resource block as an interference resource block;

step S114: and acquiring the starting position and the ending position of the interference resource block.

In this embodiment, the base station determines the interference condition of each resource block according to the interference power of each resource block, and obtains the starting position and the ending position of the resource block with the narrowband interference, so as to notify subsequent interference information.

Specifically, the base station performs interference scanning to obtain interference information in the system bandwidth, wherein the interference information can be represented by interference power and corresponds to resource blocks of the whole system bandwidth; judging whether each resource block in the system bandwidth has narrow-band interference according to the interference power, if the resource block has the interference, judging the resource block as an interference resource block, and after judging each resource block in the system bandwidth, acquiring the position of the initial interference resource block and the termination position of the interference resource block.

In one embodiment, the step of determining whether each resource block has narrowband interference according to the interference power includes the following steps:

judging whether the average interference power value is larger than a preset interference power threshold value or not;

In this embodiment, the interference average power of the resource block within the preset time threshold is obtained, and the interference average power is compared with the preset interference power threshold, so as to determine whether the resource block has narrowband interference, so as to obtain the interference information of the resource block.

In order to filter the glitch of the interference power, a time window may be defined, and an average value of the interference power of each resource block is obtained within the time window.

In order to judge whether the resource block has the narrow-band interference, an interference power threshold value is defined, when the interference average power is larger than the interference power threshold value, the part of frequency band can be judged to have the narrow-band interference, the corresponding resource block has the narrow-band interference, otherwise, the part of frequency band can be judged to have no interference, and the corresponding resource block has no narrow-band interference.

Further, in order to exclude the influence of interference power sidelobes, the interference power may be filtered. For this purpose, a filter coefficient set (alpha) is defined₁，α₂，…，α_n) Multiplied by the interference power, i.e. P _ average ═ P1 ═ α₁+P2*α₂+......Pn*α_nThereby obtaining interference average power.

Referring to fig. 5, fig. 5 is a flowchart of a method for notifying interference information according to another embodiment of the present invention. In this embodiment, the method for notifying interference information further includes the following steps:

step S140: acquiring initial position correction information and termination position correction information of the interference resource block according to the initial position, the termination position and the interference information notification information of the interference resource block;

step S150: acquiring interference information correction information according to the initial position correction information and the end position correction information; wherein, at least one bit in the interference information correction information records and corrects the representation flag bit, at least two bits record the initial position correction information of the interference resource block, and at least two bits record the end position correction information of the interference resource block;

step S160: and sending the interference information correction information to the user terminal for analysis so that the user terminal corrects the obtained interference information.

In this embodiment, the interference information correction information carrying the start position correction information and the end position correction information of the interference resource block is transmitted to the user terminal, and the interference information obtained by the user terminal is corrected, so that the details of the interference of the resource block in the system bandwidth can be accurately notified to the user terminal.

Specifically, the start position and the end position of the interference resource block, which can be analyzed based on the interference information notification information, and the start position and the end position of the real interference resource block in the system bandwidth, are obtained, where the interference information correction information may be divided into three parts, a first part records and corrects the characterization flag bit with at least one bit, a second part records and corrects the start position correction information of the interference resource block with at least two bits, and a third part records and corrects the end position correction information of the interference resource block with at least two bits. The correction information is transmitted to the user terminal through the interference information correction information, and the interference position is confirmed step by step, so that the interference information is more accurately notified to the user terminal, and the problem that the user terminal can not demodulate a downlink control signal to cause that network access can not be completed or a communication link is interrupted is avoided.

Furthermore, when the interference information in the system bandwidth changes, the initial position and the end position of the interference resource block analyzed based on the interference information notification information, and the initial position and the end position of the changed interference resource block in the system bandwidth, the initial position correction information and the end position correction information of the interference resource block are obtained, the correction information is transmitted to the user terminal through the interference information correction information, the interference position is corrected step by step, so that the interference information is accurately notified to the user terminal in real time, the reliability of system transmission is improved, and the utilization efficiency of time-frequency resources is improved.

In one embodiment, the start position correction information and the end position correction information of the interfering resource block may be recorded with the same number of bits.

In one embodiment, the interference information correction information is sent to the ue for parsing in the reserved bits of the main system information block.

The transmission period of the main system information block is T0, which is defined as 40ms in 3GPP LTE protocol, while the strong narrowband interference change period is usually more than hundreds of milliseconds, and the change is slow, and data of multiple transmission periods can be combined, so as to confirm the position of interference step by step.

In one embodiment, a correction characterization mark is recorded at n bits before interference information correction information, bits from n +1 to m record start position correction information of an interference resource block, bits from m +1 to l record end position correction information of the interference resource block, n is greater than or equal to 1, m is greater than or equal to 3, l is greater than or equal to 5, and m > n +1, l > m +1, l represents the total number of bits of the interference information correction information.

In this embodiment, as shown in fig. 6, 1 to n bits are used in the interference information correction information to record and correct a characterization flag, which indicates that the information is interference information correction information, n +1 to m bits are used to indicate start position correction information of a resource block with narrowband interference, and m +1 to l bits are used to indicate end position correction information of a resource block with narrowband interference, so that details of interference of the resource block in a system bandwidth are accurately notified to a user terminal, where a value range of l cannot exceed a total number of bits that can be used for transmitting interference information notification information in the system.

Specifically, the present embodiment will be further described with reference to n ═ 2, m ═ 6, and l ═ 10 as examples. The bit number of the interference information correction information is 10 bits, wherein, the 1 st and 2 nd bit record correction representation flag bits, which indicate that the information is the interference information correction information, the 3 rd to 6 th bit record the start position correction information of the resource block with the narrow-band interference, and the 7 th to 10 th bit record the end position correction of the resource block with the narrow-band interference. It can be seen that n is a flag bit indicating what the information is. The base station corrects the initial position and the end position of the interference resource block in the interference information notification information by sending the interference information correction information, so that the interference condition of the resource block in the system bandwidth can be more accurately notified to the user terminal.

In one embodiment, the start position correction information includes a start position correction value and a start position correction direction, and the end position correction information includes an end position correction value and an end position correction direction;

in the n + 1-m bit positions, the n + 1bit position records the correction direction of the initial position, and the n + 2-m bit positions record the correction value of the initial position; in the m + 1-l bit positions, the m + 1bit position records the correction direction of the termination position, and the m + 2-l bit position records the correction value of the termination position.

In this embodiment, the correction information includes two parts, one part is a correction direction, and the other part is a specific value of the correction. The correction information of the two parts is notified to the user terminal, and the interference information obtained by the user terminal is corrected, so that the interference condition of the resource block in the system bandwidth is more accurately notified to the user terminal.

Specifically, the present embodiment will be further described with reference to n ═ 2, m ═ 6, and l ═ 10 as examples. The number of bits of the interference information correction information is 10, wherein the 1 st and 2 nd bits record a correction characterization flag bit, which indicates that the information is interference information correction information, and for example, "00" can be used to characterize the information as interference information correction information. The 3 rd to 6 th bits record the correction information of the starting position of the resource block with the narrow-band interference, wherein the 3 rd bit records the correction direction of the starting position, for example, the "1" can be used to represent "-", i.e. the starting position moves to the left, and the "0" can be used to represent "+", i.e. the starting position moves to the right; the 4 th to 6 th bits record specific values of the start position correction, for example, the 3 rd to 6 th bits have a value of "1001", and are converted into decimal "-1", which indicates that the start position is shifted to the left by 1 resource block. Similarly, bits 7 to 10 record termination position correction information of a resource block with narrowband interference, where the bit 7 records a correction direction of the termination position, for example, a "1" may be used to represent "-", i.e., the termination position moves to the left, and a "0" may be used to represent "+", i.e., the termination position moves to the right; the 8 th to 10 th bits record specific values of the end position correction, for example, the 7 th to 10 th bits have a value of "0011" converted to "+ 3" in decimal, which means that the end position is shifted rightward by 3 resource blocks. The base station corrects the initial position and the end position of the interference resource block in the interference information notification information by sending the interference information correction information, so that the interference condition of the resource block in the system bandwidth can be more accurately notified to the user terminal.

In a specific embodiment, the base station side obtains interference information in the system bandwidth through interference scanning. This interference information is typically expressed in terms of interference power, in dBm, corresponding to resource blocks of the overall system bandwidth. In order to filter the glitches of the interference power, a time window T _ window is defined, within which the average value of the interference power is taken. In order to eliminate the influence of interference power side lobes, the interference power is filtered, the filter coefficient set (alpha) of the filter coefficient set₁，α₂，…，α_n) Multiplied by the average value of the interference power, i.e. P _ average-P1 a₁+P2*α₂+......Pn*α_n. And preselecting and defining an interference power threshold, judging that interference exists in the part of frequency band when the average value of the interference power is greater than the interference power threshold, otherwise, judging that the part of frequency band does not have the interference, and acquiring the position of the initial interference resource block and the termination position of the interference resource block.

And coding interference information notification information according to the obtained initial position and the end position of the interference resource block, wherein the interference information notification information is represented by 10 bits, the value of n is equal to 2, the value of m is equal to 6, and the interference information notification information and the interference information correction information are transmitted in the 10 bits reserved in the MIB message. For example, when the system bandwidth is 20MHz, the number of resource blocks in the system bandwidth is 100, and assuming that the position of the interference resource block is the position of the 31 st to 47 th resource blocks, the 100 resource blocks are divided into 16 equal parts, each equal part has 6 resource blocks, and the last 4 resource blocks are grouped into the last group. The base station issues interference information notification information for the first time, so that the 1 st bit and the 2 nd bit represent flag bits with values of '11', which represents that the information is the interference information notification information; the initial position is quantized by 4 bits and is the position of the 5 th equal part, and the values of the 3 rd bit to the 6 th bit after quantization are '0101'; the end position is also quantized by 4 bits, the end position can be the position of 8 th equal part, the value of 7 th bit to 10 th bit after quantization is "1000", after adding the flag bit of the basic character, it is "1101011000" after coding. The base station issues interference information correction information for the second time, so the value of the 1 st bit and the 2 nd bit can be represented as a characterization flag bit of '00', the information is represented as interference information correction information, the initial position and the end position of an interference resource block analyzed by comparing the interference information notification information and the initial position and the end position of a real interference resource block in a system bandwidth are obtained, the interference information correction information needs to correct the end position of the interference resource block, the end position analyzed by the interference information notification information is represented as a 48 th RB and needs to be shifted by one bit to the left, and the 7 th bit to the 10 th bit can be coded as '0001'. The encoded data is "0000000001".

In this embodiment, the maximum error between the start position and the end position of the interference information notification information is 3 resource blocks. And correcting the interference information through the first interference information correction information, wherein the error between the starting position and the ending position is 0.

Referring to fig. 7, fig. 7 is a flowchart of an interference information obtaining method according to an embodiment of the present invention. The method for acquiring the interference information in the embodiment comprises the following steps:

step S210: receiving interference information notification information sent by a currently connected base station; at least one bit in the interference information notification information records a basic representation flag bit, at least two bits record the initial position of the interference resource block, and at least two bits record the end position of the interference resource block;

step S220: and analyzing the interference information notification information to obtain the current interference information.

In this embodiment, by receiving interference information notification information carrying starting position information and ending position information of an interference resource block sent by a base station, the interference information notification information saves description of the resource block without narrowband interference, and reduces error information, so that a user terminal can accurately know the interference condition of the resource block in a system bandwidth.

The value range of l cannot exceed the total number of bits that can be used for transmitting the interference information notification information in the system.

In one embodiment, the interference information notification information is obtained from reserved bits of a primary system information block transmitted by a base station.

Referring to fig. 8, fig. 8 is a flowchart of an interference information obtaining method according to another embodiment of the present invention. The method for acquiring the interference information in the embodiment further comprises the following steps:

step S230: receiving interference information correction information sent by a currently connected base station; wherein, at least one bit in the interference information correction information records and corrects the representation flag bit, at least two bits record the initial position correction information of the interference resource block, and at least two bits record the end position correction information of the interference resource block;

step S240: and analyzing the interference information correction information, and correcting the current interference information.

In this embodiment, the interference information correction information carrying the start position correction information and the end position correction information of the interference resource block sent by the base station is received, and the obtained interference information is corrected, so that the user terminal can accurately know the interference condition of the resource block in the system bandwidth.

Alternatively, the start position correction information and the end position correction information of the interfering resource block may be recorded by the same number of bits.

In one embodiment, a correction characterization mark is recorded at n bits before interference information correction information, bits from n +1 to m record start position correction information of an interference resource block, bits from m +1 to l record end position correction information of the interference resource block, n is greater than or equal to 1, m is greater than or equal to 3, l is greater than or equal to 5, and m > n +1, l > m +1, l represents the total number of bits of the interference information notification information.

Further, the initial position correction information includes an initial position correction value and an initial position correction direction, and the end position correction information includes an end position correction value and an end position correction direction;

In one embodiment, the interference information correction information is obtained from reserved bits of a main system information block transmitted by a base station.

According to the above method for notifying the interference information, the present invention also provides a system for notifying the interference information, and an embodiment of the system for notifying the interference information of the present invention will be described in detail below.

Referring to fig. 9, fig. 9 is a schematic structural diagram of a system for notifying interference information according to an embodiment of the present invention. The system for notifying the interference information in the embodiment includes:

an interference information obtaining module 301, configured to obtain an initial position and a final position of an interference resource block currently communicating with a user terminal;

an interference information notification information obtaining module 302, configured to obtain interference information notification information according to an initial position and an end position of an interference resource block, where at least one bit of the interference information notification information records a basic representation flag bit, at least two bits of the interference information notification information records the initial position of the interference resource block, and at least two bits of the interference information notification information records the end position of the interference resource block;

the interference information notification module 303 is configured to send the interference information notification information to the user terminal for analysis, so that the user terminal obtains the current interference information.

In this embodiment, the interference information notification information obtaining module 302 obtains the interference information notification information according to the starting position and the ending position of the interference resource block obtained by the interference information obtaining module 301 to generate interference information notification information, and sends the interference information notification information to the user terminal through the interference information notification module 303, where the interference information notification information saves the description of the resource block without narrowband interference, and reduces error information, so that the user terminal is notified of the interference situation of the resource block in the system bandwidth more accurately.

In one embodiment, the interference information notification module 303 issues the interference information notification information to the ue for parsing in the reserved bits of the primary system information block.

In one embodiment, the interference information obtaining module 301 obtains interference power of a resource block currently communicating with the ue; judging whether each resource block has narrow-band interference according to the interference power; if the resource block has narrow-band interference, judging the resource block as an interference resource block; and acquiring the starting position and the ending position of the interference resource block.

In one embodiment, the interference information obtaining module 301 obtains an average value of interference power within a preset time threshold according to the interference power; judging that the average value of the interference power is larger than a preset interference power threshold value; if so, judging that the resource block has interference; otherwise, judging that the resource block has no interference.

In one embodiment, the interference information notification information obtaining module 302 divides each resource block into 2^m-nEqually dividing to obtain a quantized value corresponding to the initial position value of the interference resource block; converting the quantized value into a binary value of m-n bits as a value of n + 1-m bits; dividing all resource blocks into 2^l-mDividing equally to obtain interference informationA quantized value corresponding to the source block termination position value; and converting the quantized value into a binary value of l-m bits as a value of m + 1-l bits.

Referring to fig. 10, fig. 10 is a schematic structural diagram of an interference information notification system according to another embodiment of the present invention. The system for notifying the interference information in the embodiment includes:

a correction information obtaining module 304, configured to obtain start position correction information and end position correction information of the interfering resource block according to the start position and the end position of the interfering resource block and the interference information notification information;

an interference information correction information obtaining module 305, configured to obtain interference information correction information according to the start position correction information and the end position correction information; wherein, at least one bit in the interference information correction information records and corrects the representation flag bit, at least two bits record the initial position correction information of the interference resource block, and at least two bits record the end position correction information of the interference resource block;

the correction information notification module 306 is configured to send the interference information correction information to the user terminal for analysis, so that the user terminal corrects the obtained interference information.

In one embodiment, the start position correction information includes a start position correction value and a start position correction direction, and the end position correction information includes an end position correction value and an end position correction direction; in the n + 1-m bit positions, the n + 1bit position records the correction direction of the initial position, and the n + 2-m bit positions record the correction value of the initial position; in the m + 1-l bit positions, the m + 1bit position records the correction direction of the termination position, and the m + 2-l bit position records the correction value of the termination position.

The system for notifying interference information of the present invention corresponds to the method for notifying interference information of the present invention one to one, and technical features and advantages thereof described in the embodiments of the method for notifying interference information are all applicable to the embodiments of the system for notifying interference information.

According to the method for acquiring interference information, the present invention further provides an interference information acquiring system, and an embodiment of the interference information acquiring system of the present invention is described in detail below.

Referring to fig. 11, fig. 11 is a schematic structural diagram of an interference information obtaining system according to an embodiment of the present invention. The system for acquiring interference information in this embodiment includes:

an interference information receiving module 401, configured to receive interference information notification information sent by a currently connected base station; at least one bit in the interference information notification information records a basic representation flag bit, at least two bits record the initial position of the interference resource block, and at least two bits record the end position of the interference resource block;

an interference information analyzing module 402, configured to analyze the interference information notification information to obtain current interference information.

In this embodiment, the interference information notification information obtained by the interference information receiving module 401 is obtained and analyzed by the interference information analyzing module 402, where the interference information notification information saves the description of the resource block without narrowband interference, reduces error information, and enables the user terminal to accurately know the interference condition of the resource block in the system bandwidth.

Referring to fig. 12, fig. 12 is a schematic structural diagram of an interference information obtaining system according to another embodiment of the present invention. The system for acquiring interference information in this embodiment includes:

a correction information receiving module 403, configured to receive interference information correction information sent by a currently connected base station; wherein, at least one bit in the interference information correction information records and corrects the representation flag bit, at least two bits record the initial position correction information of the interference resource block, and at least two bits record the end position correction information of the interference resource block;

and a correction information analysis module 404, configured to analyze the interference information correction information and correct the current interference information.

The system for acquiring interference information of the present invention corresponds to the method for acquiring interference information of the present invention one to one, and technical features and advantageous effects described in the embodiments of the method for acquiring interference information are all applicable to the embodiments of the system for acquiring interference information.

In one embodiment, a computer device is further provided, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method for notifying the interference information according to any one of the above embodiments.

When a processor of the computer device executes a program, the processor of the computer device transmits interference information notification information carrying starting position information and ending position information of an interference resource block to a user terminal by implementing any one of the methods for notifying interference information in the embodiments, wherein the interference information notification information saves description of the resource block without narrowband interference and reduces error information, so that the user terminal is notified of the interference situation of the resource block in the system bandwidth more accurately.

In addition, it can be understood by those skilled in the art that all or part of the processes in the methods of the embodiments described above can be implemented by a program that is executable by a computer program to instruct related hardware to store the program in a non-volatile computer readable storage medium, and in the embodiments of the present invention, the program can be stored in the storage medium of a computer system and executed by at least one processor in the computer system to implement the processes of the embodiments including the above-described notification method of the interference information.

In one embodiment, a storage medium is further provided, on which a computer program is stored, wherein the program is executed by a processor to implement the method for notifying the interference information according to any one of the above embodiments. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.

The computer storage medium and the stored computer program transmit the interference information notification information carrying the initial position information and the end position information of the interference resource block to the user terminal by implementing the process of the embodiment of the method for notifying the interference information as described above, wherein the interference information notification information saves the description of the resource block without narrowband interference and reduces error information, so that the user terminal is notified of the interference situation of the resource block in the system bandwidth more accurately.

In one embodiment, a computer device is further provided, where the computer device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement any one of the interference information obtaining methods in the above embodiments.

When a processor of the computer device executes a program, the computer device receives interference information notification information which is sent by a base station and carries the initial position information and the final position information of an interference resource block by implementing any one of the interference information acquisition methods in the embodiments, wherein the interference information notification information saves the description of the resource block without narrowband interference, reduces error information, and enables a user terminal to accurately know the interference condition of the resource block in a system bandwidth.

In addition, it can be understood by those skilled in the art that all or part of the processes in the methods for implementing the embodiments described above can be implemented by using a computer program to instruct related hardware, and the program can be stored in a non-volatile computer-readable storage medium, and as in the embodiments of the present invention, the program can be stored in the storage medium of a computer system and executed by at least one processor in the computer system, so as to implement the processes of the embodiments including the above-described method for acquiring interference information.

In one embodiment, a storage medium is further provided, on which a computer program is stored, wherein the program is executed by a processor to implement any one of the interference information obtaining methods in the above embodiments. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.

The computer storage medium and the stored computer program receive the interference information notification information carrying the initial position information and the end position information of the interference resource block sent by the base station by implementing the flow of the embodiments of the method for acquiring the interference information as described above, wherein the interference information notification information saves the description of the resource block without narrowband interference, reduces error information, and enables the user terminal to accurately know the interference condition of the resource block in the system bandwidth.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A method for notifying interference information, comprising the steps of:

acquiring the initial position and the terminal position of an interference resource block currently communicating with a user terminal; the interference resource block is a resource block with narrow-band interference;

2. The method of claim 1, wherein the first n bits of the interference information notification information record the basic representation flag bit, n + 1-m bits record a start position of the interference resource block, m + 1-l bits record an end position of the interference resource block, n is greater than or equal to 1, m is greater than or equal to 3, l is greater than or equal to 5, and m > n +1, l > m +1, l represents a total number of bits of the interference information notification information.

3. The method of claim 1, wherein the step of sending the interference information notification information to the ue for analysis comprises the steps of:

4. The method of claim 1, wherein the step of obtaining the start position and the end position of the interference resource block currently communicating with the ue comprises the steps of:

5. The method of claim 4, wherein the step of determining whether narrowband interference exists in each resource block according to the interference power comprises the following steps:

6. The method of claim 2, wherein the step of obtaining the interference information notification information according to the starting position and the ending position of the interfering resource block comprises the steps of:

7. The method for notifying interference information according to any one of claims 1 to 6, further comprising the steps of:

8. The method of claim 7, wherein a correction flag is recorded in n bits before the interference information correction information, n + 1-m bits record the start position correction information of the interference resource block, m + 1-l bits record the end position correction information of the interference resource block, n is greater than or equal to 1, m is greater than or equal to 3, l is greater than or equal to 5, and m is greater than n +1, l is greater than m +1, l represents the total number of bits of the interference information correction information.

9. The method according to claim 8, wherein the start position correction information includes a start position correction value and a start position correction direction, and the end position correction information includes an end position correction value and an end position correction direction;

10. A method for acquiring interference information is characterized by comprising the following steps:

receiving interference information notification information sent by a currently connected base station; at least one bit in the interference information notification information records a basic representation flag bit, at least two bits record the initial position of an interference resource block, and at least two bits record the end position of the interference resource block; the interference resource block is a resource block with narrow-band interference;

11. The method for acquiring interference information according to claim 10, further comprising the steps of:

12. A system for notifying interference information, comprising:

the system comprises an interference information acquisition module, a resource allocation module and a resource allocation module, wherein the interference information acquisition module is used for acquiring the initial position and the terminal position of an interference resource block which is currently communicated with a user terminal; the interference resource block is a resource block with narrow-band interference;

13. An interference information acquisition system, comprising:

the interference information receiving module is used for receiving the interference information notification information sent by the currently connected base station; at least one bit in the interference information notification information records a basic representation flag bit, at least two bits record the initial position of an interference resource block, and at least two bits record the end position of the interference resource block; the interference resource block is a resource block with narrow-band interference;