CN108259123B - Parameter blind detection method and system - Google Patents

Parameter blind detection method and system Download PDF

Info

Publication number
CN108259123B
CN108259123B CN201611239206.5A CN201611239206A CN108259123B CN 108259123 B CN108259123 B CN 108259123B CN 201611239206 A CN201611239206 A CN 201611239206A CN 108259123 B CN108259123 B CN 108259123B
Authority
CN
China
Prior art keywords
parameter
signal
data type
result
correlation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201611239206.5A
Other languages
Chinese (zh)
Other versions
CN108259123A (en
Inventor
张骏凌
赵丽娟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen ZTE Microelectronics Technology Co Ltd
Original Assignee
Shenzhen ZTE Microelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen ZTE Microelectronics Technology Co Ltd filed Critical Shenzhen ZTE Microelectronics Technology Co Ltd
Priority to CN201611239206.5A priority Critical patent/CN108259123B/en
Priority to PCT/CN2017/095515 priority patent/WO2018120834A1/en
Publication of CN108259123A publication Critical patent/CN108259123A/en
Application granted granted Critical
Publication of CN108259123B publication Critical patent/CN108259123B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0046—Code rate detection or code type detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference

Abstract

The embodiment of the invention discloses a parameter blind detection method and a system, wherein the parameter blind detection method comprises the following steps: obtaining a first equalized signal corresponding to a first transmitted signal; performing correlation calculation on the first equalized signal according to a preset calculation model to obtain a first correlation result corresponding to the first equalized signal; determining a first data type of the first correlation result, and determining a first parameter corresponding to the first data type according to the corresponding relation between the pre-configured data type and the parameter and the first data type; wherein the parameter is a combination parameter of the layer number and the code book serial number; and performing blind detection according to a preset modulation mode, the first equalization signal and the first parameter to obtain a blind detection result.

Description

Parameter blind detection method and system
Technical Field
The invention relates to a detection technology in the field of communication, in particular to a parameter blind detection method and a parameter blind detection system.
Background
As the dense micro cell deployment leads to User Experience (UE) facing stronger macro cell or micro cell interference at the edge of the micro cell, in order to enhance the data throughput rate in this scenario, the terminal needs to support a Network Assisted Interference Cancellation (NAIC) receiving algorithm. In a typical NAIC receiver, a portion of parameters of a strong interference neighbor cell are transmitted to a terminal by higher layer signaling, and another portion of parameters need to be obtained by the terminal through blind detection. The number of parameters obtained by the terminal through blind detection is 7, and the parameters are respectively as follows: 1. identifying a strongest interference cell; 2. RB distribution of interfering signals; 3. an interfering cell CFI; 4. interference signal downlink power allocation factor; 5. interference signal TM mode; 6. if the interference signal is TM4, its Rank Indication (RI), i.e. the number of layers, and Precoding Matrix Indication (PMI); 7. interference signal modulation schemes, for example: quadrature phase shift keying modulation scheme, quadrature amplitude modulation scheme, and the like.
In the prior art, when the parameters 1 to 4 are known and the parameter 5 is known as the TM4 mode or the TM2 mode, the parameter 6 and the parameter 7, i.e., RI, PMI and interference signal modulation mode, are obtained by blind detection by using a method of searching for signals in an interference neighbor cell by Maximum Likelihood (ML), and the method is to perform Maximum Likelihood search on the RI, PMI and interference signal modulation mode together after equalizing interference received signals, so as to obtain the best blind detection performance result.
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art:
when the parameters 1 to 4 are known and the parameter 5 is known as the TM4 mode, for each frequency domain subcarrier with an interference signal, maximum likelihood search needs to be performed for various cases with different RI and PMI in different interference signal modulation schemes. That is, when the maximum likelihood search is performed on RI, PMI, and interference signal modulation scheme together in the related art, a large number of searches are performed for each subcarrier. Therefore, the method for acquiring the parameters through blind detection in the prior art has the defect of more search times, and the problem of power consumption increase of the terminal supporting NAIC receiving is caused by more search times.
Disclosure of Invention
The embodiment of the invention provides a parameter blind detection method and a parameter blind detection system, which can reduce the search range and the search times according to the data type of the balanced received interference signal correlation operation result when the maximum likelihood search is carried out on one subcarrier together with RI, PMI and interference signal modulation modes, thereby realizing the requirement of reducing the power consumption of a terminal supporting NAIC reception.
In order to achieve the above purpose, the technical solution of the embodiment of the present invention is realized as follows:
the embodiment of the invention provides a parameter blind detection method, which is characterized by comprising the following steps:
obtaining a first equalized signal corresponding to a first transmitted signal;
performing correlation calculation on the first equalized signal according to a preset calculation model to obtain a first correlation result corresponding to the first equalized signal;
determining a first data type of the first correlation result, and determining a first parameter corresponding to the first data type according to a corresponding relation between a pre-configured data type and a parameter and the first data type; the parameter is a combination parameter of the layer number and the code book sequence number;
and performing blind detection according to a preset modulation mode, the first equalization signal and the first parameter to obtain a blind detection result.
In the foregoing solution, before determining a first parameter corresponding to the first data type according to a pre-configured correspondence between data types and parameters and the first data type, the method further includes:
and acquiring the corresponding relation between the pre-configured data type and the parameter.
In the above scheme, the obtaining the corresponding relationship between the preconfigured data type and the parameter includes:
acquiring a corresponding relation list of parameters and a codebook;
selecting a first codebook in the corresponding relation list of the parameters and the codebooks, and acquiring a correlation result of the equalization signal corresponding to the first codebook according to a preset relation among the transmission signal, the codebook and the equalization signal and the first codebook and the irrelevance of the transmission signal;
traversing all codebooks in the corresponding relation list of the parameters and the codebooks to obtain all correlation results of the equalization signals corresponding to all the codebooks;
establishing a corresponding relation between parameters and related results according to the corresponding relation list of the parameters and the codebooks and all related results of the balanced signals corresponding to all the codebooks;
determining data types corresponding to all the correlation results, dividing all the correlation results according to the data types of all the correlation results, and establishing a corresponding relation between the data types and the correlation results;
and establishing the corresponding relation between the pre-configured data type and the parameter according to the corresponding relation between the parameter and the related result and the corresponding relation between the data type and the related result.
In the above scheme, the preset modulation method includes: m modulation modes, wherein m is a natural number greater than 0; performing blind detection according to a preset modulation mode, the first equalization signal and the first parameter to obtain a blind detection result, including:
selecting a first modulation mode in the m modulation modes, and searching the first equalization signal according to the first modulation mode and the first parameter to obtain a first search result; wherein the first modulation mode is any one of the m modulation modes;
traversing the m modulation modes to search until all search results corresponding to the m modulation modes are obtained;
and selecting one search result meeting a preset rule from all the search results, and determining the search result as the blind test result.
In the foregoing solution, the acquiring a first equalized signal corresponding to a first transmission signal includes:
receiving a first received signal corresponding to the first transmitted signal;
and carrying out equalization processing on the first receiving signal to obtain the first equalized signal.
The embodiment of the invention provides a parameter blind detection system, which is characterized by comprising the following components:
a first acquisition unit that acquires a first equalized signal corresponding to a first transmission signal;
the computing unit is used for carrying out correlation computation on the first equalization signal according to a preset computation model to obtain a first correlation result corresponding to the first equalization signal;
a determining unit, configured to determine a first data type of the first correlation result, and determine a first parameter corresponding to the first data type according to a correspondence between a preconfigured data type and a parameter, and the first data type; the parameter is a combination parameter of the layer number and the code book sequence number;
and the second acquisition unit is used for performing blind detection according to a preset modulation mode, the first equalization signal and the first parameter to obtain a blind detection result.
In the above solution, the system further includes:
a third obtaining unit, configured to obtain a corresponding relationship between the preconfigured data type and the parameter before determining, according to the corresponding relationship between the data type and the parameter and the first data type, a first parameter corresponding to the first data type.
In the foregoing solution, the third obtaining unit includes:
the first acquisition subunit is used for acquiring a corresponding relation list of the parameters and the codebook;
the second obtaining subunit is configured to select a first codebook in the corresponding relationship list of the parameters and the codebooks, and obtain, according to a preset relationship between the transmission signal, the codebooks, and the equalization signal, and the first codebook, a correlation result of the equalization signal corresponding to the first codebook according to the irrelevance of the transmission signal;
the second obtaining subunit is further configured to traverse all codebooks in the corresponding relationship list of the parameters and the codebooks, and obtain all correlation results of the equalization signals corresponding to all codebooks;
the first establishing subunit is configured to establish a correspondence between the parameters and the correlation results according to the correspondence list between the parameters and the codebooks and all correlation results of the equalization signals corresponding to all the codebooks;
the second establishing subunit is used for determining the data types corresponding to all the correlation results, dividing all the correlation results according to the data types of all the correlation results and establishing the corresponding relation between the data types and the correlation results;
and the third establishing subunit is used for establishing the corresponding relation between the pre-configured data type and the parameter according to the corresponding relation between the parameter and the related result and the corresponding relation between the data type and the related result.
In the above scheme, the preset modulation method includes: m modulation modes, wherein m is a natural number greater than 0; the second acquisition unit includes:
the searching subunit is configured to select a first modulation scheme of the m modulation schemes, search the first equalized signal according to a first parameter, and obtain a first search result; wherein the first modulation mode is any one of the m modulation modes;
the searching subunit is further configured to search through the m modulation modes until all search results corresponding to the m modulation modes are obtained;
and the determining subunit is used for selecting one search result meeting a preset rule from all the search results, and determining the search result as the blind test result.
In the foregoing solution, the first obtaining unit includes:
a receiving subunit, configured to receive a first received signal corresponding to the first transmitted signal;
and the equalizing subunit is configured to perform equalization processing on the first received signal to obtain the first equalized signal.
Therefore, the embodiment of the invention provides a parameter blind detection method and a parameter blind detection system, and a first equalization signal corresponding to a first transmission signal is obtained; performing correlation calculation on the first equalized signal according to a preset calculation model to obtain a first correlation result corresponding to the first equalized signal; determining a first data type of the first correlation result, and determining a first parameter corresponding to the first data type according to the corresponding relation between the pre-configured data type and the parameter and the first data type; wherein the parameter is a combination parameter of the layer number and the code book serial number; and performing blind detection according to a preset modulation mode, the first equalization signal and the first parameter to obtain a blind detection result. That is to say, in the technical solution provided by the present invention, when performing maximum likelihood search on a subcarrier together with RI, PMI and interference signal modulation, the search range can be narrowed and the search frequency can be reduced according to the data type of the balanced correlation operation result of receiving an interference signal, obviously, compared with the prior art, the parameter blind detection method and system provided by the embodiments of the present invention can solve the defect that the number of search times is large in the method of obtaining parameters by blind detection, thereby achieving the requirement of reducing the power consumption of a terminal supporting NAIC reception.
Drawings
FIG. 1 is a schematic flow chart illustrating an implementation of a blind parameter detection method according to an embodiment of the present invention;
fig. 2 is a schematic flow chart illustrating an implementation of the method for obtaining a corresponding relationship between a preconfigured data type and a parameter according to the embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating an implementation flow of a method for obtaining a blind test result according to an embodiment of the present invention;
fig. 4 is a schematic flow chart illustrating an implementation of a method for obtaining a first equalized signal according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a first component of the system in an embodiment of the invention;
FIG. 6 is a schematic diagram of a second component of the system in accordance with an embodiment of the present invention;
FIG. 7 is a schematic diagram of a third configuration of the system in an embodiment of the invention;
FIG. 8 is a diagram of a fourth component of the system in an embodiment of the invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
It should be noted that, the blind detection parameters obtained by blind detection on the interference signal of one subcarrier are respectively: 1. identifying a strongest interference cell; 2. RB distribution of interfering signals; 3. an interfering cell CFI; 4. interference signal downlink power allocation factor; 5. interference signal TM mode; 6. if the interference signal is in TM4 mode, its RI and PMI; 7. and the interference signal modulation mode carries out blind detection on the parameters of the interference signal successively according to the sequence. In each embodiment of the present invention, the parameter blind detection method proposed by the present invention is performed under the condition that the strongest interfering cell identification, the RB distribution of the interfering signal, the CFI of the interfering cell, the downlink power allocation factor of the interfering signal, and the TM mode of the interfering signal are known, that is, after the subcarriers are subjected to blind detection processing to obtain the above-mentioned interfering signal parameters 1 to 5, if the interfering signal is TM4, the method continues to blind detect the interfering signal RI and PMI and the interfering signal modulation mode. The parameter blind detection method provided by the invention is suitable for a TM4 mode or a TM2 mode.
Example one
Fig. 1 is a schematic flow chart illustrating an implementation process of a parameter blind detection method in an embodiment of the present invention, as shown in fig. 1, in a specific embodiment of the present invention, the method for blind detection of an interference signal parameter mainly includes the following steps:
step 101, a first equalized signal corresponding to a first transmitted signal is obtained.
In a specific embodiment of the present invention, when a system receives a first received signal corresponding to a first transmitted signal through a receiving port, the system performs an equalization process on the first received signal, so as to obtain a first equalized signal corresponding to the first transmitted signal through the equalization process.
Further, in an embodiment of the present invention, the first received signal corresponding to the first transmitted signal, which is received by the system through the receiving port, may be transmitted by the transmitting port of the base station or the network side device. The number of the receiving ports of the system is not limited, the number of the receiving ports corresponds to the number of the transmitting ports of the opposite terminal, and meanwhile, the number of the receiving ports corresponds to the number of the received first receiving signals. For example, the base station sends a first transmission signal through two transmission ports, and correspondingly, the system receives the first transmission signal through two receiving ports, thereby obtaining a first receiving signal corresponding to the first transmission signal.
Further, in an embodiment of the present invention, after the system receives the first received signal through the receiving port, the system may perform equalization processing on an interference signal in the first received signal through multiple equalization methods, so as to obtain a first equalized signal corresponding to the first transmitted signal. After the system receives the first received signal through the two receiving ports, the first equalized signal can be obtained through equalization processing of the first received signal.
It should be noted that, in the embodiment of the present invention, the method for performing parameter blind selection is adapted to the TM4 mode or the TM2 mode.
And 102, performing correlation calculation on the first equalized signal according to a preset calculation model to obtain a first correlation result corresponding to the first equalized signal.
In an embodiment of the present invention, after obtaining a first equalized signal corresponding to a first transmitted signal, the system may perform correlation calculation on the first equalized signal according to a preset calculation model, so that a correlation result corresponding to the first equalized signal may be obtained.
Further, in the embodiment of the present invention, the preset calculation model is a calculation model corresponding to the current TM mode, that is, the preset calculation model in the TM4 mode cannot be applied to the TM2 mode.
Step 103, determining a first data type of the first correlation result, and determining a first parameter corresponding to the first data type according to a pre-configured corresponding relationship between the data type and the parameter, and the first data type, wherein the parameter is a combined parameter of the layer number and the code book sequence number.
In an embodiment of the present invention, after the system performs correlation calculation on the first equalized signal according to a preset calculation model and obtains a first correlation result corresponding to the first equalized signal, a first data type of the first correlation result may be determined, and then a first parameter corresponding to the first data type may be determined according to a pre-configured corresponding relationship between the data type and the parameter and the first data type. The parameter is a combination parameter of the layer number RI and the code book sequence number N.
In an embodiment of the present invention, further, before determining the first parameter corresponding to the first data type according to the corresponding relationship between the data type and the parameter and the first data type, the system needs to obtain a corresponding relationship between the preconfigured data type and the parameter.
Further, in an embodiment of the present invention, the preconfigured correspondence between data types and parameters is obtained on the basis of the determined TM mode, port number, RB distribution of interference signals, and correspondence list of parameters and codebook, that is, the preconfigured correspondence between data types and parameters is fixed in the case of knowing the TM mode, port number, RB distribution of interference signals, and precoding matrix table.
Further, in the specific embodiment of the present invention, the list of correspondence between the parameters and the codebook refers to the distribution of codebooks corresponding to different numbers of layers RI and codebook numbers N. For example, table 1 is a list of correspondence between parameters and codebooks in the TM4 mode, and as shown in table 1, in the TM4 mode, the codebook numbers take on values of 0, 1, 2, and 3, and at this time, different codebooks exist for different layer numbers and codebook numbers, that is, for different codebooks, there are parameters corresponding to the codebooks, that is, combination parameters of the layer numbers and the codebook numbers.
TABLE 1
Figure GDA0002243163900000081
Further, in an embodiment of the present invention, the first parameter corresponding to the first data type refers to a combination parameter of a layer number and a codebook number corresponding to the first data type, where the first parameter corresponding to the first data type may be a combination result of at least one of the layer number and the codebook number.
Further, in the embodiment of the present invention, for a first equalized signal corresponding to one subcarrier, the first correlation result corresponding to the first equalized signal may be obtained through the above steps, and then the parameters of combining the number of layers and the code book sequence number are obtained, so as to narrow the range of the combination of the number of layers and the code book sequence number corresponding to the interfering signal of the subcarrier.
And 104, performing blind detection according to a preset modulation mode, the first equalization signal and the first parameter to obtain a blind detection result.
In a specific embodiment of the present invention, after determining the first parameter corresponding to the first data type, the system may perform blind detection according to a preset modulation method, the first equalization signal, and the first parameter, and finally obtain a blind detection result. Wherein, the blind test result includes: the number of layers, the codebook, and the type of modulation scheme.
Further, in the specific embodiment of the present invention, after the first parameter is determined, that is, the number of layers and the codebook sequence number combination parameter, the system may perform blind detection on the first equalized signal according to a preset modulation mode, the number of layers and the codebook sequence number combination parameter, and finally obtain a blind detection result, that is, obtain the number of layers, the codebook and the modulation mode of the determined subcarrier.
It should be noted that, in an embodiment of the present invention, the preset modulation scheme may be at least one interference signal modulation mode, for example, QPSK, 16QAM, 64QAM, or other modulation modes.
Therefore, in the specific embodiment of the present invention, when blind detection is performed on an interference signal parameter of one subcarrier, the requirement of simplifying the blind detection process can be met by narrowing the range of the combination of the number of layers and the code book sequence number.
Example two
Fig. 2 is a schematic flow chart illustrating an implementation process of a method for obtaining a pre-configured data type and parameter correspondence in an embodiment of the present invention, as shown in fig. 2, in an embodiment of the present invention, before a system determines a first parameter corresponding to a first data type according to a data type and parameter correspondence, a pre-configured data type and parameter correspondence may be obtained through the following steps:
step 201, obtaining a corresponding relation list of the parameter and the codebook.
In a specific embodiment of the present invention, a system may obtain a corresponding relationship list of parameters and codebooks, where the parameters are combined parameters of layer numbers and codebook numbers, and a combined parameter of a layer number and a codebook number corresponds to one codebook. For example, the correspondence table between the parameter and the codebook in the TM4 mode is shown in table 1 above.
Further, in the embodiment of the present invention, the corresponding relation list of the parameters and the codebook acquired by the system corresponds to known interference signal parameters such as the strongest interfering cell identification, the RB distribution of the interfering signal, the CFI of the interfering cell, the downlink power allocation factor of the interfering signal, and the TM mode of the interfering signal.
Step 202, selecting a first codebook in the corresponding relation list of the parameter and the codebook, and acquiring a correlation result of the equalized signal corresponding to the first codebook according to the preset relation among the transmitted signal, the codebook and the equalized signal and the first codebook and according to the irrelevance of the transmitted signal.
In a specific embodiment of the present invention, the system may select one codebook in the list of correspondence between the parameter and the codebook, that is, the first codebook, and obtain a correlation result of the equalized signal corresponding to the first codebook according to the pre-set correspondence between the transmitted signal, the codebook, and the equalized signal and according to the irrelevance of the transmitted signal.
Further, in a specific embodiment of the present invention, for example, when in the TM4 mode, the received signal of any subcarrier at the layer number of 1 can be expressed as formula (1):
Figure GDA0002243163900000091
the received signal of any subcarrier at the number of layers of 2 can be expressed as formula (2):
Figure GDA0002243163900000101
wherein, in formula (1) and formula (2), Y0(i) is the received signal of receiving port 1, Y1(i) is the received signal of receiving port 2, H00(i) is the channel frequency domain impulse response of receiving port 1 to transmitting port 1, H10(i) is the channel frequency domain impulse response of receiving port 2 to transmitting port 1, H01(i) is the channel frequency domain impulse response of receiving port 1 to transmitting port 2, H11(i) is the channel frequency domain impulse response of receiving port 2 to transmitting port 2, X0(i) is the transmitted signal of transmitting port 1, X1(i) is the transmitted signal of transmitting port 2, N0(i) is the gaussian white noise of receiving port 1, N1(i) is the gaussian white noise of receiving port 2, X0(i)eqFor an equalized signal corresponding to X0(i), X1(i)eqW (i) is a precoding matrix, i.e., codebook, for the equalized signal corresponding to X1 (i).
Further, in the embodiment of the present invention, the preset relationship among the transmitted signal, the codebook and the equalized signal in the TM4 mode can be obtained through the above formula (1) and formula (2), that is, the equalized signal is equal to the product of the codebook and the transmitted signal, so that one codebook is selected, and the correlation result of the equalized signal can be obtained according to the irrelevancy of the transmitted signal through the maximum correlation operation.
Step 203, traversing all codebooks in the corresponding relation list of the parameters and the codebooks, and acquiring all correlation results of the equalization signals corresponding to all the codebooks.
In a specific embodiment of the present invention, the system may traverse all codebooks in the parameter and codebook correspondence list according to step 202, and obtain all correlation results of the equalized signal corresponding to all codebooks according to the irrelevance of the transmitted signal through the maximum correlation operation. For example, in the TM4 mode, the codebooks corresponding to codebook numbers 0 to 3 where RI is 1 in table 1 are respectively substituted into formula (1) to obtain formulae (3) to (6), and the codebooks corresponding to codebook numbers 1 and 2 where RI is 2 in table 1 are respectively substituted into formula (2) to obtain formulae (7) and (8):
Figure GDA0002243163900000102
Figure GDA0002243163900000103
Figure GDA0002243163900000104
Figure GDA0002243163900000105
Figure GDA0002243163900000106
Figure GDA0002243163900000111
then, performing correlation operation on the results of the above 6 formulas on all the interfering subcarriers, and obtaining formulas (9) to (14):
Figure GDA0002243163900000112
Figure GDA0002243163900000115
Figure GDA0002243163900000116
Figure GDA0002243163900000117
in the formulae (9) to (14),
Figure GDA0002243163900000118
for X0(i)eqAnd X1(i)eqAnd (3) performing correlation operation, wherein when the X0 and the X1 are uncorrelated random emission constellation points, the correlation result of the formula (9) is a positive real number, the correlation result of the formula (10) is a negative real number, the correlation result of the formula (11) is a negative imaginary number, the correlation result of the formula (12) is a positive imaginary number, the correlation result of the formula (13) is an imaginary number, and the correlation result of the formula (14) is a real number.
In an embodiment of the present invention, when in the TM4 mode, the codebook having RI 2 and N0 need not be searched according to a predetermined rule.
And step 204, establishing the corresponding relation between the parameters and the related results according to the corresponding relation list of the parameters and the codebooks and all the related results of the balanced signals corresponding to all the codebooks.
In an embodiment of the present invention, after the system obtains all correlation results of the equalized signal corresponding to all codebooks through the step 203, the system may establish a corresponding relationship between the parameters and the correlation results according to the corresponding relationship list of the parameters and the codebooks, where the equalized signal corresponds to all correlation results of all codebooks in the corresponding relationship list of the parameters and the codebooks.
Further, in a specific embodiment of the present invention, for example, in the case where X0 and X1 are uncorrelated randomly-transmitted constellation points, the correlation result for the above equation (9) is a codebook corresponding to the case where the parameter RI is 1 and N is 0, and thus it may be determined that the parameter RI is 1 and N is 0 corresponds to the correlation result for the equation (9).
And step 205, determining the data types corresponding to all the correlation results, dividing all the correlation results according to the data types of all the correlation results, and establishing the corresponding relation between the data types and the correlation results.
In a specific embodiment of the present invention, the system determines the data types corresponding to all the correlation results, and divides all the correlation results according to the data types of all the correlation results, so as to establish the corresponding relationship between the data types and the correlation results.
Further, in an embodiment of the present invention, for example, when X0 and X1 are uncorrelated randomly transmitted constellation points, the correlation result of the above equation (9) is a positive real number, the correlation result of the above equation (10) is a negative real number, the correlation result of the above equation (11) is a negative imaginary number, the correlation result of the above equation (12) is a positive imaginary number, the correlation result of the above equation (13) is an imaginary number, and the correlation result of the above equation (14) is a real number. Therefore, when the data type is positive real, the corresponding correlation result is the correlation result of equation (9) and equation (14).
And step 206, establishing a corresponding relation between the pre-configured data type and the parameter according to the corresponding relation between the parameter and the relevant result and the corresponding relation between the data type and the relevant result.
In the embodiment of the present invention, after the system establishes the corresponding relationship between the parameter and the related result in step 204 and establishes the corresponding relationship between the data type and the related result in step 205, the system may establish the corresponding relationship between the pre-configured data type and the parameter according to the corresponding relationship between the parameter and the related result and the corresponding relationship between the data type and the related result.
Further, in the embodiment of the present invention, when the list of correspondence between the known strongest interfering cell identification, the RB distribution of the interfering signal, the interfering cell CFI, the downlink power allocation factor of the interfering signal and the like, and the parameter and codebook in the TM4 mode is as shown in table 1 above, the preconfigured correspondence between the data type and the parameter may be established through steps 201 to 206, and table 2 is the table of correspondence between the data type and the parameter corresponding to table 1, and as shown in table 2, when the data type is a positive real number, the corresponding parameter is RI 1, N0, or RI 1, N0.
TABLE 2
Data type Parameter(s)
Positive real number RI-1, N-0 or RI-1, N-0
Negative real number RI-1, N-0 or RI-1, N-0
Positive and negative deficiency number RI-1, N-0 or RI-1, N-0
Negative imaginary number RI-1, N-0 or RI-1, N-0
According to the above description, through the steps 201 to 206, the system can establish the pre-configured corresponding relationship between the data type and the parameter through the corresponding relationship between the parameter and the related result and the corresponding relationship between the data type and the related result.
EXAMPLE III
Fig. 3 is a schematic flow chart illustrating an implementation of the method for obtaining a blind test result in the embodiment of the present invention, as shown in fig. 3, in a specific embodiment of the present invention, the method for obtaining a blind test result according to m preset modulation modes, a first equalization result, and a first parameter mainly includes the following steps:
104a, selecting a first modulation mode from the m modulation modes, and searching the first balanced signal according to the first modulation mode and the first parameter to obtain a first search result; wherein the first modulation mode is any one of m modulation modes.
In an embodiment of the present invention, the system may select one modulation scheme from the m modulation schemes, that is, a first modulation scheme, and then search the first equalized signal according to the first modulation scheme and the first parameter, so as to obtain a first search result. The preset modulation mode comprises m different modulation modes, and the first modulation mode is any one of the m modulation modes.
Further, in an embodiment of the present invention, according to the first modulation scheme and the first parameter, the system may search the first equalized signal by using a maximum likelihood search method, so as to obtain the first search result.
The first search result is a search result corresponding to the first parameter in the first modulation scheme. I.e. the search results for the parameters corresponding to the combination of layer number and codebook number. For example, when the first parameter includes two different combinations of layer numbers and codebook numbers, the corresponding first search result includes two search results respectively corresponding to the two different combinations of layer numbers and codebook numbers.
And step 104b, traversing the m modulation modes for searching until all search results corresponding to the m modulation modes are obtained.
In an embodiment of the present invention, based on the step 104a, the system searches the first equalized signal according to the first parameter and all m modulation schemes until obtaining all search results corresponding to all m modulation schemes.
And 104c, selecting one search result meeting a preset rule from all the search results, and determining the one search result as a blind test result.
In a specific embodiment of the present invention, the system searches all m modulation modes according to the first parameter until all search results corresponding to all m modulation modes are obtained. And selecting one search result meeting a preset rule from all the search results, and determining the search result as a blind test result.
As can be seen from the above description, through the steps 104a to 104c, the system may obtain all search results by searching the first equalized signal according to all m modulation methods and the first parameter, respectively, and select a blind detection result that satisfies a preset rule from all search results.
Example four
Fig. 4 is a schematic flow chart of an implementation of the method for acquiring the first equalization signal in the embodiment of the present invention, as shown in fig. 4, in the embodiment of the present invention, the method for acquiring the first equalization by the system after equalizing the interference signal mainly includes the following steps:
step 101a, receiving a first received signal corresponding to a first transmitted signal.
In an embodiment of the present invention, the first received signal corresponding to the first transmitted signal, which is received by the system through the receiving port, may be transmitted by the transmitting port of the base station or the network side device. The number of the transmitting ports of the system is not limited, and the number of the transmitting ports corresponds to the number of the receiving transmitting ports, and meanwhile, the number of the transmitting ports corresponds to the number of the transmitted first transmitting signals. For example, the base station sends a first transmission signal through two transmission ports, and correspondingly, the system receives the first transmission signal through two receiving ports, thereby obtaining a first receiving signal corresponding to the first transmission signal.
And 101b, carrying out equalization processing on the first received signal to obtain a first equalized signal.
In an embodiment of the present invention, after the system receives a first received signal corresponding to a first transmitted signal through the receiving port, the system performs an equalization process on the first received signal, so as to obtain a first equalized signal corresponding to the first transmitted signal through the equalization process.
As can be seen from the above description, through the steps 101a to 101b, the system can obtain a first equalized signal by receiving a first received signal corresponding to the first transmitted signal and performing equalization processing on the first received signal.
The parameter blind detection method provided by the embodiment of the invention obtains a first equalization signal corresponding to a first transmission signal; performing correlation calculation on the first equalized signal according to a preset calculation model to obtain a first correlation result corresponding to the first equalized signal; determining a first data type of the first correlation result, and determining a first parameter corresponding to the first data type according to the corresponding relation between the pre-configured data type and the parameter and the first data type; wherein the parameter is a combination parameter of the layer number and the code book serial number; and performing blind detection according to a preset modulation mode, the first equalization signal and the first parameter to obtain a blind detection result. That is to say, in the technical solution provided by the present invention, when performing maximum likelihood search on a subcarrier together with RI, PMI and interference signal modulation, the search range can be narrowed and the search frequency can be reduced according to the data type of the balanced correlation operation result of receiving an interference signal.
EXAMPLE five
Fig. 5 is a schematic diagram of a first component structure of the system in the embodiment of the present invention, as shown in fig. 5, in the embodiment of the present invention, the system 1 includes: a first acquisition unit 11, a calculation unit 12, a determination unit 13, and a second acquisition unit 14, wherein,
a first obtaining unit 11 is configured to obtain a first equalized signal corresponding to the first transmission signal.
The calculating unit 12 is configured to perform correlation calculation on the first equalized signal according to a preset calculation model, and obtain a first correlation result corresponding to the first equalized signal.
A determining unit 13, configured to determine a first data type of the first correlation result, and determine a first parameter corresponding to the first data type according to a correspondence between a preconfigured data type and a parameter, and the first data type; the parameter is a combination parameter of the layer number and the code book sequence number.
The second obtaining unit 14 is configured to perform blind detection according to a preset modulation mode, the first equalization signal, and the first parameter, so as to obtain a blind detection result.
In a particular embodiment of the present invention, further, as shown in fig. 5, the system 1 further comprises a third obtaining unit 15, wherein,
a third obtaining unit 15, configured to obtain a corresponding relationship between the preconfigured data type and the parameter before determining the first parameter corresponding to the first data type according to the corresponding relationship between the data type and the parameter and the first data type.
Fig. 6 is a schematic diagram of a second component structure of the system in the embodiment of the present invention, as shown in fig. 6, in the embodiment of the present invention, the third obtaining unit 15 includes: a first acquisition subunit 151, a second acquisition subunit 152, a first creation subunit 153, a second creation subunit 154, and a third creation subunit 155, wherein,
a first obtaining subunit 151, configured to obtain a correspondence list of parameters and codebooks.
The second obtaining subunit 152 is configured to select a first codebook in the corresponding relationship list of the parameter and the codebook, and obtain a correlation result of the equalized signal corresponding to the first codebook according to the preset relationship between the transmitted signal, the codebook and the equalized signal, and the first codebook and according to the irrelevance of the transmitted signal.
The second obtaining subunit 152 is further configured to traverse all codebooks in the corresponding relationship list of the parameters and the codebooks, and obtain all correlation results of the equalized signal corresponding to all codebooks.
The first establishing subunit 153 is configured to establish a correspondence between the parameters and the correlation results according to the correspondence list between the parameters and the codebooks, and all correlation results of the equalized signals corresponding to all codebooks.
And a second establishing subunit 154, configured to determine data types corresponding to all correlation results, divide all correlation results according to the data types of all correlation results, and establish a corresponding relationship between the data types and the correlation results.
And a third establishing subunit 155, configured to establish a corresponding relationship between the preconfigured data type and the parameter according to the corresponding relationship between the parameter and the related result, and the corresponding relationship between the data type and the related result.
Fig. 7 is a schematic diagram of a third component structure of the system in the embodiment of the present invention, as shown in fig. 7, in the embodiment of the present invention, the second obtaining unit 14 includes: a search subunit 141 and a determination subunit 142, wherein,
the searching subunit 141 is configured to select a first modulation scheme of the m modulation schemes, search the first equalized signal according to the first parameter, and obtain a first search result; wherein the first modulation mode is any one of m modulation modes.
The searching subunit 141 is further configured to search through the m modulation manners until all search results corresponding to the m modulation manners are obtained.
And a determining subunit 142, configured to select one search result that satisfies a preset rule from all search results, and determine the one search result as a blind test result.
Fig. 8 is a schematic diagram of a fourth component structure of the system in the embodiment of the present invention, as shown in fig. 8, in the embodiment of the present invention, the first obtaining unit 11 includes: a receiving sub-unit 111 and an equalizing sub-unit 112, wherein,
the receiving subunit 111 is configured to receive a first received signal corresponding to the first transmitted signal.
The equalizing subunit 112 is configured to perform equalization processing on the first received signal to obtain a first equalized signal.
The parameter blind detection system provided by the embodiment of the invention obtains a first equalization signal corresponding to a first transmission signal; performing correlation calculation on the first equalized signal according to a preset calculation model to obtain a first correlation result corresponding to the first equalized signal; determining a first data type of the first correlation result, and determining a first parameter corresponding to the first data type according to the corresponding relation between the pre-configured data type and the parameter and the first data type; wherein the parameter is a combination parameter of the layer number and the code book serial number; and performing blind detection according to a preset modulation mode, the first equalization signal and the first parameter to obtain a blind detection result. That is to say, in the technical solution provided by the present invention, when performing maximum likelihood search on a subcarrier together with RI, PMI and an interference signal modulation scheme, a search range can be narrowed and search times can be reduced according to a data type of a result of a balanced correlation operation for receiving an interference signal.
The first obtaining unit 11, the calculating unit 12, the determining unit 13, the second obtaining unit 14, and the third obtaining unit 15 provided in the embodiment of the present invention may be implemented in the form of program codes by executing corresponding functions by a processor in the mobile terminal; of course, the implementation can also be realized through a specific logic circuit; in the course of a particular embodiment, the processor may be a Central Processing Unit (CPU), a Microprocessor (MPU), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), or the like.
The terminal determines the priority of the current access terminal according to a pre-stored priority list and a preset division strategy, and allocates a first preset bandwidth to the current access terminal according to the priority of the current access terminal and a preset allocation strategy; receiving a data packet forwarding request sent by a current access terminal; wherein, the data packet forwarding request carries the required bandwidth of the data packet; monitoring the use bandwidth of the current access terminal, and determining the available bandwidth of the current access terminal through the use bandwidth and a first preset bandwidth; when the required bandwidth of the data packet is larger than the available bandwidth of the current access terminal, setting and adjusting the bandwidth; and adding the adjusted bandwidth to the first preset bandwidth, and sending the data packet to the current access terminal until the available bandwidth of the current access terminal is more than or equal to the required bandwidth of the data packet. That is to say, in the technical solution provided by the present invention, the first preset bandwidth of each access terminal can be dynamically set according to the proportion by establishing the priority table, and the bandwidth of each access terminal can be dynamically adjusted by preemptively allocating the bandwidth in a self-adaptive manner. Moreover, the method is simple and convenient to realize, convenient to popularize and wide in application range.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims (10)

1. A method of blind parameter detection, the method comprising:
when RI, PMI and interference signal modulation mode are searched for the maximum likelihood together, a first equalization signal corresponding to a first transmitting signal is obtained;
performing correlation calculation on the first equalized signal according to a preset calculation model to obtain a first correlation result corresponding to the first equalized signal;
determining a first data type of the first correlation result, and determining a first parameter corresponding to the first data type according to a corresponding relation between a pre-configured data type and the parameter; the parameter is a combination parameter of the layer number and the code book sequence number;
and performing blind detection according to a preset modulation mode, the first equalization signal and the first parameter to obtain a blind detection result.
2. The method of claim 1, wherein before determining the first parameter corresponding to the first data type according to the preconfigured correspondence of data types and parameters and the first data type, the method further comprises:
and acquiring the corresponding relation between the pre-configured data type and the parameter.
3. The method of claim 2, wherein obtaining the pre-configured data type to parameter correspondence comprises:
acquiring a corresponding relation list of parameters and a codebook;
selecting a first codebook in the corresponding relation list of the parameters and the codebooks, and acquiring a correlation result of the equalization signal corresponding to the first codebook according to a preset relation among the transmission signal, the codebook and the equalization signal and the first codebook and the irrelevance of the transmission signal;
traversing all codebooks in the corresponding relation list of the parameters and the codebooks to obtain all correlation results of the equalization signals corresponding to all the codebooks;
establishing a corresponding relation between parameters and related results according to the corresponding relation list of the parameters and the codebooks and all related results of the balanced signals corresponding to all the codebooks;
determining data types corresponding to all the correlation results, dividing all the correlation results according to the data types of all the correlation results, and establishing a corresponding relation between the data types and the correlation results;
and establishing the corresponding relation between the pre-configured data type and the parameter according to the corresponding relation between the parameter and the related result and the corresponding relation between the data type and the related result.
4. The method according to claim 1, wherein the preset modulation scheme comprises: m modulation modes, wherein m is a natural number greater than 0; performing blind detection according to a preset modulation mode, the first equalization signal and the first parameter to obtain a blind detection result, including:
selecting a first modulation mode in the m modulation modes, and searching the first equalization signal according to the first modulation mode and the first parameter to obtain a first search result; wherein the first modulation mode is any one of the m modulation modes;
traversing the m modulation modes to search until all search results corresponding to the m modulation modes are obtained;
and selecting one search result meeting a preset rule from all the search results, and determining the search result as the blind test result.
5. The method of claim 1, wherein obtaining a first equalized signal corresponding to a first transmitted signal comprises:
receiving a first received signal corresponding to the first transmitted signal;
and carrying out equalization processing on the first receiving signal to obtain the first equalized signal.
6. A parameter blind inspection system, the system comprising:
a first obtaining unit, configured to obtain a first equalized signal corresponding to a first transmission signal when performing maximum likelihood search on a subcarrier together with an RI, a PMI, and an interference signal modulation scheme;
the computing unit is used for carrying out correlation computation on the first equalization signal according to a preset computation model to obtain a first correlation result corresponding to the first equalization signal;
a determining unit, configured to determine a first data type of the first correlation result, and determine a first parameter corresponding to the first data type according to a correspondence between a preconfigured data type and a parameter; the parameter is a combination parameter of the layer number and the code book sequence number;
and the second acquisition unit is used for performing blind detection according to a preset modulation mode, the first equalization signal and the first parameter to obtain a blind detection result.
7. The system of claim 6, further comprising:
a third obtaining unit, configured to obtain a corresponding relationship between the preconfigured data type and the parameter before determining, according to the corresponding relationship between the data type and the parameter and the first data type, a first parameter corresponding to the first data type.
8. The system of claim 7, wherein the third obtaining unit comprises:
the first acquisition subunit is used for acquiring a corresponding relation list of the parameters and the codebook;
the second obtaining subunit is configured to select a first codebook in the corresponding relationship list of the parameters and the codebooks, and obtain, according to a preset relationship between the transmission signal, the codebooks, and the equalization signal, and the first codebook, a correlation result of the equalization signal corresponding to the first codebook according to the irrelevance of the transmission signal;
the second obtaining subunit is further configured to traverse all codebooks in the corresponding relationship list of the parameters and the codebooks, and obtain all correlation results of the equalization signals corresponding to all codebooks;
the first establishing subunit is configured to establish a correspondence between the parameters and the correlation results according to the correspondence list between the parameters and the codebooks and all correlation results of the equalization signals corresponding to all the codebooks;
the second establishing subunit is used for determining the data types corresponding to all the correlation results, dividing all the correlation results according to the data types of all the correlation results and establishing the corresponding relation between the data types and the correlation results;
and the third establishing subunit is used for establishing the corresponding relation between the pre-configured data type and the parameter according to the corresponding relation between the parameter and the related result and the corresponding relation between the data type and the related result.
9. The system of claim 6, wherein the preset modulation scheme comprises: m modulation modes, wherein m is a natural number greater than 0; the second acquisition unit includes:
the searching subunit is configured to select a first modulation scheme of the m modulation schemes, search the first equalized signal according to a first parameter, and obtain a first search result; wherein the first modulation mode is any one of the m modulation modes;
the searching subunit is further configured to search through the m modulation modes until all search results corresponding to the m modulation modes are obtained;
and the determining subunit is used for selecting one search result meeting a preset rule from all the search results, and determining the search result as the blind test result.
10. The system of claim 6, wherein the first obtaining unit comprises:
a receiving subunit, configured to receive a first received signal corresponding to the first transmitted signal;
and the equalizing subunit is configured to perform equalization processing on the first received signal to obtain the first equalized signal.
CN201611239206.5A 2016-12-28 2016-12-28 Parameter blind detection method and system Active CN108259123B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201611239206.5A CN108259123B (en) 2016-12-28 2016-12-28 Parameter blind detection method and system
PCT/CN2017/095515 WO2018120834A1 (en) 2016-12-28 2017-08-01 Method and system for blind testing of parameter, and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611239206.5A CN108259123B (en) 2016-12-28 2016-12-28 Parameter blind detection method and system

Publications (2)

Publication Number Publication Date
CN108259123A CN108259123A (en) 2018-07-06
CN108259123B true CN108259123B (en) 2020-02-04

Family

ID=62706833

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611239206.5A Active CN108259123B (en) 2016-12-28 2016-12-28 Parameter blind detection method and system

Country Status (2)

Country Link
CN (1) CN108259123B (en)
WO (1) WO2018120834A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111294829B (en) * 2019-04-25 2022-11-04 展讯通信（上海）有限公司 Wireless communication interference method and device, and computer readable storage medium

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101729455A (en) * 2008-10-31 2010-06-09 华为技术有限公司 Blind detection method, device and system
CN103457688A (en) * 2012-05-29 2013-12-18 中兴通讯股份有限公司 Method and device for blind detection of downlink control information
CN104009820A (en) * 2013-02-26 2014-08-27 华为技术有限公司 Method for transmitting downlink control information DCI and device thereof
CN104811946A (en) * 2014-01-29 2015-07-29 北京三星通信技术研究有限公司 Interference signal processing method and device
CN105101251A (en) * 2014-05-08 2015-11-25 中国移动通信集团公司 NAICS method, device, system and related equipment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9634785B2 (en) * 2014-07-31 2017-04-25 Samsung Electronics Co., Ltd Interference cancellation method of user equipment in cellular communication system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101729455A (en) * 2008-10-31 2010-06-09 华为技术有限公司 Blind detection method, device and system
CN103457688A (en) * 2012-05-29 2013-12-18 中兴通讯股份有限公司 Method and device for blind detection of downlink control information
CN104009820A (en) * 2013-02-26 2014-08-27 华为技术有限公司 Method for transmitting downlink control information DCI and device thereof
CN104811946A (en) * 2014-01-29 2015-07-29 北京三星通信技术研究有限公司 Interference signal processing method and device
CN105101251A (en) * 2014-05-08 2015-11-25 中国移动通信集团公司 NAICS method, device, system and related equipment

Also Published As

Publication number Publication date
WO2018120834A1 (en) 2018-07-05
CN108259123A (en) 2018-07-06

Similar Documents

Publication Publication Date Title
US10070453B2 (en) Radio base station apparatus and scheduling method
US9867060B2 (en) Radio communication system and antenna configuration determination method
US9252862B2 (en) MIMO preamble for initial access with an unknown number of transmit antennas
US20190379433A1 (en) Methods and devices for feeding back and configuring pilot parameters, user terminal and base station
CN106549889B (en) A kind of adaptive waveform transfer method, apparatus and system
JP2013059039A (en) System, device and method for training sequence transmission and reception
WO2013017997A1 (en) Transmission mode adaptation in a wireless network
US10063355B2 (en) Data processing method, apparatus, and system
CN106612135B (en) Signal sending method, receiving method and device based on multi-carrier spatial modulation
WO2014130082A1 (en) Method and apparatus for using demodulation reference signal in long term evolution advanced cellular networks
WO2016209710A1 (en) Data communication using interference alignment
EP2499870A1 (en) An improved method and apparatus for co-scheduling transmissions in a wireless network
CN106161322B (en) Signal processing method, uplink resource allocation method and device thereof
TW201731226A (en) Method and apparatus for blind detection of interference parameters in LTE system
JP6811714B2 (en) Base station equipment, terminal equipment and communication methods
CN104243377A (en) Interference suppression method and device
WO2016029442A1 (en) Data transmission method and device
CN103997473A (en) Signal interference filtering method and related device
CN106685498A (en) MIMO transmission method and device
CN107302385B (en) Virtual multiple-input multiple-output communication method, device and system
TW201214988A (en) Data communication devices, methods, & systems
CN108259123B (en) Parameter blind detection method and system
JPWO2007052397A1 (en) Transmission / reception system, transmission apparatus, and pilot signal multiplexing method used therefor
US9537547B1 (en) User equipment SRS selection with network node intelligence for beamforming performance improvement
JP2009212560A (en) Base station, communication program, and wireless communication system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant