CN117202224A - Signal processing method, base station and device - Google Patents
Signal processing method, base station and device Download PDFInfo
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Abstract
The embodiment of the application provides a signal processing method, a base station and a device, which relate to the technical field of communication and are applied to the base station, wherein the method comprises the following steps: respectively carrying out channel estimation processing on signals received by each antenna and sent by the same terminal to obtain a channel estimation result; calculating signal receiving power of each antenna based on channel estimation results corresponding to each antenna; selecting a target antenna from the respective antennas based on the signal reception power of the respective antennas; and carrying out subsequent signal processing based on the channel estimation result corresponding to the target antenna. By applying the scheme provided by the embodiment of the application, the calculation resources consumed in the signal processing process can be reduced.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a signal processing method, a base station, and an apparatus.
Background
In the prior art, a base station commonly receives signals sent by a terminal through multiple antennae, so that the capacity of wireless communication is improved and the reliability is improved. The signals sent by the terminal accessing the base station to the base station are received by all antennas of the base station, the base station needs to process the signals received by all antennas, the more the number of the antennas is, the more the number of the signals needed to be processed when the base station processes the signals, the larger the calculation amount of the signal processing process is, and the more the calculation resources are consumed. Thus, the base station can configure multiple antennas to improve the capacity and reliability of wireless communication, but the calculation amount of the signal processing process of the base station can be increased, and the consumption of calculation resources can be increased.
Disclosure of Invention
An embodiment of the application aims to provide a signal processing method, a base station and a device, so as to reduce the computing resources consumed in a signal processing process. The specific technical scheme is as follows:
in a first aspect, an embodiment of the present application provides a signal processing method, which is applied to a base station, where the method includes:
respectively carrying out channel estimation processing on signals received by each antenna and sent by the same terminal to obtain a channel estimation result;
calculating signal receiving power of each antenna based on channel estimation results corresponding to each antenna;
selecting a target antenna from the respective antennas based on the signal reception power of the respective antennas;
and carrying out subsequent signal processing based on the channel estimation result corresponding to the target antenna.
In a second aspect, an embodiment of the present application provides a base station, including a memory, a transceiver, and a processor:
a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:
respectively carrying out channel estimation processing on signals received by each antenna and sent by the same terminal to obtain a channel estimation result;
calculating signal receiving power of each antenna based on channel estimation results corresponding to each antenna;
selecting a target antenna from the respective antennas based on the signal reception power of the respective antennas;
and carrying out subsequent signal processing based on the channel estimation result corresponding to the target antenna.
In a third aspect, an embodiment of the present application provides a signal processing apparatus, applied to a base station, where the apparatus includes:
the channel estimation processing module is used for respectively carrying out channel estimation processing on signals received by each antenna and sent by the same terminal to obtain a channel estimation result;
the power calculation module is used for calculating the signal receiving power of each antenna based on the channel estimation result corresponding to each antenna;
an antenna selection module for selecting a target antenna from the respective antennas based on signal reception power of the respective antennas;
and the signal processing module is used for carrying out subsequent signal processing based on the channel estimation result corresponding to the target antenna.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium having a computer program stored therein, which when executed by a processor, implements the method steps of any of the first aspects.
In a fifth aspect, embodiments of the present application also provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any of the first aspects described above.
The embodiment of the application has the beneficial effects that:
the embodiment of the application provides a signal processing method which is applied to a base station, and is used for respectively carrying out channel estimation processing on signals received by all antennas and sent by the same terminal to obtain channel estimation results, and respectively calculating the signal receiving power of all antennas based on the channel estimation results of all antennas; selecting a target antenna from the respective antennas based on the signal reception power of the respective antennas; and carrying out subsequent signal processing based on the channel estimation result corresponding to the target antenna.
From the above, in the embodiment of the present application, after receiving the signals sent by the same terminal through each antenna, channel estimation processing is performed on each signal, and the signal receiving power of each antenna is calculated. And selecting part of antennas from the antennas based on the signal receiving power as target antennas, and then performing signal processing on only channel estimation results corresponding to the target antennas. Therefore, in the embodiment of the application, after the channel estimation processing is performed, the subsequent signal processing is performed only on the channel estimation result obtained based on the partial antenna calculation, so that the number of signals to be processed can be reduced, the calculation amount of the signal processing process is reduced, the consumption of calculation resources is reduced, and the data processing load of the base station CPU is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
Fig. 1 is a flow chart of a first signal processing method according to an embodiment of the present application;
fig. 2 is a flow chart of a second signal processing method according to an embodiment of the present application;
fig. 3 is a flow chart of a third signal processing method according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a base station according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a signal processing device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by the person skilled in the art based on the present application are included in the scope of protection of the present application.
In the prior art, the base station configured with multiple antennas has the problems of larger calculation amount in the signal processing process of the base station and more consumption of calculation resources, and in order to solve the problems, the embodiment of the application provides a signal processing method, a base station and a device.
The embodiment of the application provides a signal processing method which is applied to a base station and comprises the following steps:
respectively carrying out channel estimation processing on signals received by each antenna and sent by the same terminal to obtain a channel estimation result;
calculating signal receiving power of each antenna based on channel estimation results corresponding to each antenna;
selecting a target antenna from the respective antennas based on the signal reception power of the respective antennas;
and carrying out subsequent signal processing based on the channel estimation result corresponding to the target antenna.
From the above, in the embodiment of the present application, after receiving the signals sent by the same terminal through each antenna, channel estimation processing is performed on each signal, and the signal receiving power of each antenna is calculated. And selecting part of antennas from the antennas based on the signal receiving power as target antennas, and then performing signal processing on only channel estimation results corresponding to the target antennas. Therefore, in the embodiment of the application, after the channel estimation processing is performed, the subsequent signal processing is performed only on the channel estimation result obtained based on the partial antenna calculation, so that the number of signals to be processed can be reduced, the calculation amount of the signal processing process is reduced, the consumption of calculation resources is reduced, and the data processing load of the base station CPU is reduced.
Referring to fig. 1, a flow chart of a first signal processing method according to an embodiment of the present application is applied to a base station, and the method includes the following steps S101 to S104.
S101: and respectively carrying out channel estimation processing on signals received through each antenna and sent by the same terminal to obtain a channel estimation result.
The number of antennas of the base station in the prior art is often 8, 16, 32, 64, etc.
Specifically, the signal received by the antenna may be a signal transmitted by the terminal through PUSCH (Physical Uplink Shared Channel ), or may be a signal transmitted by the terminal through PUCCH (Physical Uplink Control Channel ) or other channels, which is not limited in this embodiment.
In one embodiment of the present application, after the base station receives the signal through the antenna, the base station may perform resource demapping processing on the signal first and then perform channel estimation processing.
In addition, the more the number of antennas of the base station is, the more the number of signals received by the base station is, the larger the dimension of the signals is, for example, the 32-dimensional signals are received if the number of antennas of the base station is 32, and the 64-dimensional signals are received if the number of antennas of the base station is 64. The larger the dimension of the signal is, the larger the calculation amount consumed by processing the signal is, so that the channel dimension reduction processing can be optionally performed after the resource demapping processing and before the channel estimation processing on the signal, so as to reduce the dimension of the signal and reduce the calculation amount consumed by the subsequent signal processing. The dimension of the signal after the channel dimension reduction process may be a preset dimension, for example, the preset dimension may be 8 dimensions, and then the 64-dimension signal may be reduced to an 8-dimension signal.
Specifically, the channel dimension reduction processing may be performed based on the antenna frequency domain data and the AGC (Automatic Gain Control ) factor included in the processing result after the resource demapping processing. And, in the course of channel estimation process, when IDFT/DFT (Inverse Discrete Fourier Transform/Discrete Fourier Transform ) is performed, a dynamic word length adjustment strategy may be adopted to ensure the stability of the performance of the signal processing process.
In addition, the channel estimation process, the resource demapping process, and the channel dimension reduction process may all be implemented in a manner of the prior art, which is not limited in this embodiment.
S102: and calculating the signal receiving power of each antenna based on the channel estimation result corresponding to each antenna.
In one embodiment of the present application, the signal reception power of each antenna may be calculated based on the channel estimation result of the pilot symbols contained in the signal.
Specifically, the above-described step S102 may be implemented by the following step a.
Step A: for each antenna, the signal received power of that antenna is calculated based on the channel estimation result of the target pilot symbol.
Wherein, the target pilot signal is: among the signals received through the antenna, a pilot signal located at the forefront of the time domain position.
Specifically, for each antenna, a channel estimation process may be performed on a signal received through the antenna, and then a channel estimation result of a target pilot signal may be extracted from the channel estimation result of the signal to calculate a signal receiving frequency of the antenna.
The signal reception power of the antenna may be calculated by extracting the channel estimation result of the pilot symbol located at another time domain position from the channel estimation result of the signal.
Specifically, the signal received power may be calculated based on the channel estimation result of the pilot symbol in a manner in the prior art, which is not described herein.
S103: and selecting a target antenna from the antennas based on the signal reception power of the antennas.
Specifically, the larger the signal received by the antenna with larger signal receiving power is, the larger the influence on the signal processing result is, in the embodiment of the application, the antenna with larger signal receiving power can be selected as the target antenna, the subsequent signal processing is performed based on the signal received by the target antenna, and the signal received by the antenna with smaller signal receiving power outside the target antenna is ignored, so that the influence on the signal processing result is reduced to the greatest extent under the condition of reducing the number of the signals participating in the subsequent signal processing.
In one embodiment of the present application, an antenna having a signal reception power greater than a preset signal reception power may be selected as the target antenna.
In another embodiment of the present application, the step S103 may be implemented by the step S103A shown in fig. 2 or the step S103B shown in fig. 3, which will not be described in detail in this embodiment.
S104: and carrying out subsequent signal processing based on the channel estimation result corresponding to the target antenna.
Specifically, after the target antenna is selected, one or more of the following signal processing may be sequentially performed on the channel estimation result corresponding to the target antenna: AGC factor compensation processing, interference and frequency offset measurement processing, channel equalization processing, de-transmission precoding processing, frequency offset correction processing, de-layer mapping processing, signal demodulation processing, signal descrambling processing, and the like.
In the AGC factor compensation process, the AGC factor compensation process may be performed on the channel estimation result and the antenna data corresponding to each OFDM (Orthogonal Frequency Division Multiplexing ) symbol on each target antenna.
After the channel equalization processing, the frequency domain signal is subjected to the pre-coding processing of de-transmission and is adjusted to be time domain data, then the time domain data is subjected to the frequency offset correction processing and the de-layer mapping processing, the processing result is subjected to the signal demodulation processing, namely the constellation de-mapping conversion processing, the processing result is converted into soft bits, and finally the soft bits are subjected to the signal descrambling processing to complete the signal processing process, so that the subsequent channel decoding processing can be continued.
Specifically, the above-described despreading precoding process is performed only when the signal received by the antenna is a DFT-s-OFDM (Discrete Fourier Transform-spread-Orthogonal Frequency Division Multiplexing, discrete fourier transform spread orthogonal frequency division multiplexing) waveform.
In the above-described respective signal processing procedures, the channel equalization processing requires more computational resources, and compared with other signal processing procedures, the channel equalization processing for the channel estimation results corresponding to all antennas consumes more computational resources. In the scheme, the subsequent channel equalization processing is only carried out on the channel estimation result corresponding to the target antenna, so that more calculation resources can be saved in the channel equalization processing process.
From the above, in the embodiment of the present application, after receiving the signals sent by the same terminal through each antenna, channel estimation processing is performed on each signal, and the signal receiving power of each antenna is calculated. And selecting part of antennas from the antennas based on the signal receiving power as target antennas, and then performing signal processing on only channel estimation results corresponding to the target antennas. Therefore, in the embodiment of the application, after the channel estimation processing is performed, the subsequent signal processing is performed only on the channel estimation result obtained based on the partial antenna calculation, so that the number of signals to be processed can be reduced, the calculation amount of the signal processing process is reduced, the consumption of calculation resources is reduced, and the data processing load of the base station CPU is reduced.
Referring to fig. 2, a flow chart of a second signal processing method according to an embodiment of the present application, compared with the embodiment shown in fig. 1, the above step S103 may be implemented by the following step S103A.
S103A: and selecting an antenna with the sum value of the signal receiving powers larger than the preset sum value as a target antenna.
In one embodiment of the present application, any antenna whose sum of signal reception powers is greater than a preset sum may be randomly selected from among the respective antennas as the target antenna.
In addition, the antenna with the maximum signal receiving power and the sum value larger than the preset sum value can be preferentially selected as the target antenna, so that the condition that the sum value of the signal receiving power of the selected antenna is larger than the preset sum value can be met by selecting a smaller number of antennas, and the number of target antennas for subsequent signal processing is further reduced.
In one embodiment of the present application, the antennas may be ranked according to the magnitude of the signal received power, and then the target antenna may be selected based on the ranking result. Specifically, an antenna identification sequence can be generated after the sequencing, wherein if the sequencing is descending sequencing, the antenna identifications contained in the antenna identification sequence gradually decrease the signal receiving power of the corresponding antenna according to the sequence from front to back; if the order is an ascending order, the antenna identifications included in the antenna identification sequence gradually increase the signal reception power of the corresponding antenna in the order from front to back, and therefore the order of the signal reception power of each antenna can be represented by the antenna identification sequence.
If the order is descending order, determining whether the signal receiving power of the first antenna exceeds a preset sum value according to the order from front to back after the order, if so, taking the first antenna as a target antenna, if not, continuously calculating whether the sum of the signal receiving powers of the first two antennas exceeds the preset sum value, if so, taking the first two antennas as the target antenna, otherwise, continuously calculating whether the sum of the signal receiving powers of the first three antennas exceeds the preset sum value, and so on, and determining the target antennas contained in each antenna. The signal receiving power of the selected target antenna is larger and is larger than the signal receiving power of other antennas except the target antenna, and the sum value of the signal receiving powers of the target antenna is larger than the preset sum value.
In addition, in this process, a plurality of selectable numbers of target antennas may be preset, respectively as a 1 st selectable number and a 2 nd selectable number … … nth selectable number, and the values of the 1 st selectable number to the nth selectable number sequentially increase. For example, the 1 st optional number is 4, the 2 nd optional number is 8, the 3 rd optional number is 12, and the like. Then after the antennas are ordered in descending order according to the signal receiving power, it may be calculated first whether the sum of the signal receiving powers of the first 1 st selectable number of antennas exceeds a preset sum value, if so, the first 1 st selectable number of antennas is used as a target antenna, otherwise, it is continued to calculate whether the sum of the signal receiving powers of the first 2 nd selectable number of antennas exceeds the preset sum value, if so, the first 2 nd selectable number of antennas is used as a target antenna, otherwise, it is continued to calculate whether the sum of the signal receiving powers of the first 3 rd selectable number of antennas exceeds the preset sum value, and so on, to determine the target antennas contained in the antennas.
In addition, if the sorting is ascending sorting, the antenna selection method is similar to that after descending sorting, and the difference is that the order of selecting the identifiers from the antenna identifier sequences is different, which is not described in detail in this embodiment.
In one embodiment of the present application, the preset sum may be set manually, or the preset sum may be determined through the following steps B to C.
And (B) step (B): the sum of the signal received powers of all antennas is calculated.
Step C: and calculating a preset sum value based on the sum of the signal receiving powers and the preset proportion.
Specifically, the product of the sum of the signal received powers and the preset ratio may be calculated as a preset sum value.
For example, the above-mentioned preset ratio may be 90%, 80%, or the like.
Therefore, the preset sum value in the embodiment of the application can be matched with the actual signal receiving power of each antenna, and when the base station processes the signals sent by different terminals, the base station can configure different preset sum values to select the target antenna based on the actual signal receiving power.
From the above, the sum of the signal receiving powers of the target antennas selected in the embodiment of the application is larger than the preset sum, so that the signal receiving power of the corresponding target antenna of the signal participating in the subsequent signal processing is larger overall, and the accuracy of the signal processing result is higher.
Referring to fig. 3, a flow chart of a third signal processing method according to an embodiment of the present application, compared with the embodiment shown in fig. 1, the above step S103 may be implemented by the following step S103B.
S103B: and selecting a preset number of antennas with the maximum signal receiving power as target antennas.
Specifically, the antennas may be ordered according to the signal receiving power, and then the antennas are selected, and the manner of ordering the antennas is similar to the embodiment shown in the previous step S102A, which is not described herein.
If the rank is a descending rank, the signal reception power of the antenna that is the earlier in the rank is higher, and therefore the target antenna selected in the order from front to rear is the preset number of antennas with the highest signal reception power among the antennas.
For example, the preset number may be 4, 8, 12, etc.
Further, if the order is an ascending order, the signal reception power of the antenna further after the order is larger, and thus the target antenna selected in the order from the rear to the front is the preset number of antennas having the largest signal reception power among the respective antennas.
As can be seen from the above, in the embodiment of the present application, the antenna with the largest signal receiving power is preferentially selected as the target antenna, the signal receiving power of the selected target antenna is greater than the signal receiving powers of other antennas, and the signal participating in the subsequent signal processing corresponds to the target antenna with greater signal receiving power, so that the accuracy of the signal processing result is higher.
Corresponding to the signal processing method applied to the base station, the embodiment of the application also provides the base station.
Referring to fig. 4, a schematic structural diagram of a base station according to an embodiment of the present application includes a memory 401, a transceiver 402, and a processor 403:
a memory 401 for storing a computer program; a transceiver 402 for transceiving data under control of the processor; a processor 403 for reading the computer program in the memory and for each cell of the base station:
respectively carrying out channel estimation processing on signals received by each antenna and sent by the same terminal to obtain a channel estimation result;
calculating signal receiving power of each antenna based on channel estimation results corresponding to each antenna;
selecting a target antenna from the respective antennas based on the signal reception power of the respective antennas;
and carrying out subsequent signal processing based on the channel estimation result corresponding to the target antenna.
Wherein in fig. 4, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 403 and various circuits of memory, represented by memory 401, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 402 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over transmission media, including wireless channels, wired channels, optical cables, and the like. The processor 403 is responsible for managing the bus architecture and general processing, and the memory 401 may store data used by the processor 403 in performing operations.
The processor 403 may be a Central Processing Unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA), or a complex programmable logic device (Complex Programmable Logic Device, CPLD), or the processor may employ a multi-core architecture.
From the above, in the embodiment of the present application, after receiving the signals sent by the same terminal through each antenna, channel estimation processing is performed on each signal, and the signal receiving power of each antenna is calculated. And selecting part of antennas from the antennas based on the signal receiving power as target antennas, and then performing signal processing on only channel estimation results corresponding to the target antennas. Therefore, in the embodiment of the application, after the channel estimation processing is performed, the subsequent signal processing is performed only on the channel estimation result obtained based on the partial antenna calculation, so that the number of signals to be processed can be reduced, the calculation amount of the signal processing process is reduced, the consumption of calculation resources is reduced, and the data processing load of the base station CPU is reduced.
In one embodiment of the present application, the selecting a target antenna from the antennas based on the signal receiving power of the antennas specifically includes:
and selecting an antenna with the sum value of the signal receiving powers larger than the preset sum value as a target antenna.
From the above, the sum of the signal receiving powers of the target antennas selected in the embodiment of the application is larger than the preset sum, so that the signal receiving power of the corresponding target antenna of the signal participating in the subsequent signal processing is larger overall, and the accuracy of the signal processing result is higher.
In one embodiment of the application, the preset sum value is determined by:
calculating the sum of signal receiving power of all antennas;
and calculating a preset sum value based on the sum of the signal receiving powers and a preset proportion.
From the above, the preset sum value in the embodiment of the present application may be matched with the actual signal receiving power of each antenna, and when the base station processes the signals sent by different terminals, the base station may configure different preset sum values to select the target antenna based on the actual signal receiving power.
In one embodiment of the present application, the selecting a target antenna from the antennas based on the signal receiving power of the antennas specifically includes:
and selecting a preset number of antennas with the maximum signal receiving power as target antennas.
As can be seen from the above, in the embodiment of the present application, the antenna with the largest signal receiving power is preferentially selected as the target antenna, the signal receiving power of the selected target antenna is greater than the signal receiving powers of other antennas, and the signal participating in the subsequent signal processing corresponds to the target antenna with greater signal receiving power, so that the accuracy of the signal processing result is higher.
In one embodiment of the present application, the calculating the signal receiving power of each antenna based on the channel estimation result corresponding to each antenna specifically includes:
for each antenna, calculating signal receiving power of the antenna based on a channel estimation result of a target pilot frequency symbol, wherein the target pilot frequency signal is: among the signals received through the antenna, a pilot signal located at the forefront of the time domain position.
Corresponding to the signal processing method applied to the base station, the embodiment of the application also provides a signal processing device applied to the base station.
Referring to fig. 5, a schematic structural diagram of a signal processing apparatus according to an embodiment of the present application is applied to a base station, where the apparatus includes:
a channel estimation processing module 501, configured to perform channel estimation processing on signals received through each antenna and sent by the same terminal, to obtain a channel estimation result;
a power calculation module 502, configured to calculate signal receiving powers of the antennas respectively based on channel estimation results corresponding to the antennas;
an antenna selection module 503, configured to select a target antenna from the respective antennas based on signal reception power of the respective antennas;
and the signal processing module 504 is configured to perform a subsequent signal processing process based on the channel estimation result corresponding to the target antenna.
From the above, in the embodiment of the present application, after receiving the signals sent by the same terminal through each antenna, channel estimation processing is performed on each signal, and the signal receiving power of each antenna is calculated. And selecting part of antennas from the antennas based on the signal receiving power as target antennas, and then performing signal processing on only channel estimation results corresponding to the target antennas. Therefore, in the embodiment of the application, after the channel estimation processing is performed, the subsequent signal processing is performed only on the channel estimation result obtained based on the partial antenna calculation, so that the number of signals to be processed can be reduced, the calculation amount of the signal processing process is reduced, the consumption of calculation resources is reduced, and the data processing load of the base station CPU is reduced.
In one embodiment of the present application, the antenna selection module 503 is specifically configured to:
and selecting an antenna with the sum value of the signal receiving powers larger than the preset sum value as a target antenna.
From the above, the sum of the signal receiving powers of the target antennas selected in the embodiment of the application is larger than the preset sum, so that the signal receiving power of the corresponding target antenna of the signal participating in the subsequent signal processing is larger overall, and the accuracy of the signal processing result is higher.
In one embodiment of the present application, the preset sum is determined by a sum determination module for:
calculating the sum of signal receiving power of all antennas;
and calculating a preset sum value based on the sum of the signal receiving powers and a preset proportion.
From the above, the preset sum value in the embodiment of the present application may be matched with the actual signal receiving power of each antenna, and when the base station processes the signals sent by different terminals, the base station may configure different preset sum values to select the target antenna based on the actual signal receiving power.
In one embodiment of the present application, the antenna selection module 503 is specifically configured to:
and selecting a preset number of antennas with the maximum signal receiving power as target antennas.
As can be seen from the above, in the embodiment of the present application, the antenna with the largest signal receiving power is preferentially selected as the target antenna, the signal receiving power of the selected target antenna is greater than the signal receiving powers of other antennas, and the signal participating in the subsequent signal processing corresponds to the target antenna with greater signal receiving power, so that the accuracy of the signal processing result is higher.
In one embodiment of the present application, the power calculation module 502 is specifically configured to:
for each antenna, calculating signal receiving power of the antenna based on a channel estimation result of a target pilot frequency symbol, wherein the target pilot frequency signal is: among the signals received through the antenna, a pilot signal located at the forefront of the time domain position.
In yet another embodiment of the present application, there is also provided a computer readable storage medium having stored therein a computer program which, when executed by a processor, implements the steps of any of the signal processing methods described above.
When the computer readable storage medium provided by the embodiment of the application is used for signal processing, in the embodiment of the application, after signals sent by the same terminal are received through each antenna, channel estimation processing is respectively carried out on each signal, and the signal receiving power of each antenna is calculated. And selecting part of antennas from the antennas based on the signal receiving power as target antennas, and then performing signal processing on only channel estimation results corresponding to the target antennas. Therefore, in the embodiment of the application, after the channel estimation processing is performed, the subsequent signal processing is performed only on the channel estimation result obtained based on the partial antenna calculation, so that the number of signals to be processed can be reduced, the calculation amount of the signal processing process is reduced, the consumption of calculation resources is reduced, and the data processing load of the base station CPU is reduced.
In a further embodiment of the present application, there is also provided a computer program product containing instructions which, when run on a computer, cause the computer to perform any of the signal processing methods of the above embodiments.
When the computer program product provided by the embodiment of the application is used for signal processing, in the embodiment of the application, after the signals sent by the same terminal are received through each antenna, channel estimation processing is respectively carried out on each signal, and the signal receiving power of each antenna is calculated. And selecting part of antennas from the antennas based on the signal receiving power as target antennas, and then performing signal processing on only channel estimation results corresponding to the target antennas. Therefore, in the embodiment of the application, after the channel estimation processing is performed, the subsequent signal processing is performed only on the channel estimation result obtained based on the partial antenna calculation, so that the number of signals to be processed can be reduced, the calculation amount of the signal processing process is reduced, the consumption of calculation resources is reduced, and the data processing load of the base station CPU is reduced.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), etc.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for base station, apparatus, storage medium and computer program embodiments, the description is relatively simple, as it is substantially similar to the method embodiments, as relevant points are found in the partial description of the method embodiments.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable 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 processor-executable instructions may also be stored in a processor-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 processor-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 processor-executable 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. It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the embodiments of the present application and the equivalent techniques thereof, the present application is also intended to include such modifications and variations.
Claims (12)
1. A signal processing method, applied to a base station, the method comprising:
respectively carrying out channel estimation processing on signals received by each antenna and sent by the same terminal to obtain a channel estimation result;
calculating signal receiving power of each antenna based on channel estimation results corresponding to each antenna;
selecting a target antenna from the respective antennas based on the signal reception power of the respective antennas;
and carrying out subsequent signal processing based on the channel estimation result corresponding to the target antenna.
2. The method of claim 1, wherein the selecting a target antenna from the respective antennas based on the signal received power of the respective antennas comprises:
and selecting an antenna with the sum value of the signal receiving powers larger than the preset sum value as a target antenna.
3. The method according to claim 2, characterized in that the preset sum value is determined by:
calculating the sum of signal receiving power of all antennas;
and calculating a preset sum value based on the sum of the signal receiving powers and a preset proportion.
4. The method of claim 1, wherein the selecting a target antenna from the respective antennas based on the signal received power of the respective antennas comprises:
and selecting a preset number of antennas with the maximum signal receiving power as target antennas.
5. The method according to any one of claims 1-4, wherein the calculating the signal received power of each antenna based on the channel estimation result corresponding to each antenna includes:
for each antenna, calculating signal receiving power of the antenna based on a channel estimation result of a target pilot frequency symbol, wherein the target pilot frequency signal is: among the signals received through the antenna, a pilot signal located at the forefront of the time domain position.
6. A base station comprising a memory, a transceiver, and a processor:
a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:
respectively carrying out channel estimation processing on signals received by each antenna and sent by the same terminal to obtain a channel estimation result;
calculating signal receiving power of each antenna based on channel estimation results corresponding to each antenna;
selecting a target antenna from the respective antennas based on the signal reception power of the respective antennas;
and carrying out subsequent signal processing based on the channel estimation result corresponding to the target antenna.
7. The base station according to claim 6, wherein the selecting a target antenna from the respective antennas based on the signal reception power of the respective antennas specifically includes:
and selecting an antenna with the sum value of the signal receiving powers larger than the preset sum value as a target antenna.
8. The base station of claim 7, wherein the preset sum is determined by:
calculating the sum of signal receiving power of all antennas;
and calculating a preset sum value based on the sum of the signal receiving powers and a preset proportion.
9. The base station according to claim 6, wherein the selecting a target antenna from the respective antennas based on the signal reception power of the respective antennas specifically includes:
and selecting a preset number of antennas with the maximum signal receiving power as target antennas.
10. The base station according to any one of claims 6-9, wherein the calculating the signal received power of each antenna based on the channel estimation result corresponding to each antenna includes:
for each antenna, calculating signal receiving power of the antenna based on a channel estimation result of a target pilot frequency symbol, wherein the target pilot frequency signal is: among the signals received through the antenna, a pilot signal located at the forefront of the time domain position.
11. A signal processing apparatus for use in a base station, the apparatus comprising:
the channel estimation processing module is used for respectively carrying out channel estimation processing on signals received by each antenna and sent by the same terminal to obtain a channel estimation result;
the power calculation module is used for calculating the signal receiving power of each antenna based on the channel estimation result corresponding to each antenna;
an antenna selection module for selecting a target antenna from the respective antennas based on signal reception power of the respective antennas;
and the signal processing module is used for carrying out subsequent signal processing based on the channel estimation result corresponding to the target antenna.
12. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored therein a computer program which, when executed by a processor, implements the method steps of any of claims 1-5.
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| CN202210608432.5A CN117202224A (en) | 2022-05-31 | 2022-05-31 | Signal processing method, base station and device |
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| CN202210608432.5A CN117202224A (en) | 2022-05-31 | 2022-05-31 | Signal processing method, base station and device |
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