CN115412135A - Method, device and equipment for determining beamforming feedback mode and storage medium - Google Patents
Method, device and equipment for determining beamforming feedback mode and storage medium Download PDFInfo
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- CN115412135A CN115412135A CN202110593568.9A CN202110593568A CN115412135A CN 115412135 A CN115412135 A CN 115412135A CN 202110593568 A CN202110593568 A CN 202110593568A CN 115412135 A CN115412135 A CN 115412135A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0417—Feedback systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
Abstract
The embodiment of the invention provides a method, namely a device, equipment and a storage medium for determining a beam forming feedback mode, wherein the method comprises the following steps: determining current scene information of a terminal; judging the current wireless environment state of the terminal according to a judgment threshold corresponding to the current scene information of the terminal; and matching a beam forming feedback mode according to the current wireless environment state of the terminal. The channel information is fed back to the base station through a beam forming feedback mode suitable for the current scene and the wireless environment of the terminal, so that the problem that SRS feedback information is not accurate enough in a weak coverage scene or when SINR of a user is poor is solved.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a method, an apparatus, and a storage medium for determining a beamforming feedback mode.
Background
When the terminal feeds back the channel information, two different modes, namely Precoding Matrix Indicator (PMI) and Sounding Reference Signal (SRS), may be used. As shown in fig. 1a, the PMI is obtained by the base station 101 through a preset mechanism, and estimates channel information and resource requirements by means of various quantization algorithms after measurement by the terminal 102, and reports the channel information and resource requirements to the base station 101. As shown in fig. 1b, the SRS uses channel reciprocity to enable the terminal 102 to directly report channel information to the base station 101, which obviously makes the SRS mode more accurate. Meanwhile, in the SRS mode, the more antennas can participate in transmitting the reference signal, the more accurate the channel estimation is, and the higher the download rate can be obtained.
With the arrival of the 5G era, various 5G mobile phones emerge like spring bamboo shoots after rain, and the function of supporting SRS rotation is taken as an important selling point of the 5G mobile phones. In the SRS mode, the more antennas participating in the sounding information, the more accurate the acquired channel information is, and the higher the download rate is, the higher the terminal is. The terminal can transmit SRS signals on four antennas in a round-robin manner, and the base station acquires information of all 4 channels of the terminal, so that MIMO scheduling and coordination between single-user multi-stream and multiple users are better.
However, in a weak coverage scenario or when the user SINR (Signal to Interference plus Noise Ratio) is degraded, there is a problem that the SRS feedback information is not accurate enough.
Disclosure of Invention
The embodiment of the invention provides a method for determining a beam forming feedback mode, namely a device, equipment and a storage medium. Therefore, channel information is fed back to the base station through a beam forming feedback mode suitable for the current scene and the wireless environment of the terminal, so that the problem that SRS feedback information is not accurate enough in a weak coverage scene or when the SINR of a user is poor is solved.
In a first aspect, an embodiment of the present invention provides a method for determining a beamforming feedback mode, where the method includes: determining current scene information of a terminal; judging the current wireless environment state of the terminal according to a judgment threshold corresponding to the current scene information of the terminal; and matching a beam forming feedback mode according to the current wireless environment state of the terminal.
Further, the determining the current scene information of the terminal includes: judging whether the terminal supports the SRS polling function and whether the terminal is currently in a high-speed moving state so as to determine that the current scene information of the terminal is one of the following: an SRS polling mode in a high-speed environment, a non-SRS polling mode in a high-speed environment, an SRS polling mode in a non-high-speed environment, or a non-SRS polling mode in a non-high-speed environment.
Further, the determining whether the terminal is currently in the high-speed moving state includes: determining whether the number of cells experienced by the terminal in a set time is greater than a set number; and/or determining whether the terminal is in a frequency deviation state within a first time range in the frequency deviation record within the set time; and if the number of the cells which are experienced by the terminal in the set time is larger than the set number and/or the terminal is in the frequency offset state in the first time range in the frequency offset record in the set time, determining that the terminal is in the high-speed moving state.
Further, the determining the current wireless environment state of the terminal according to the determination threshold corresponding to the current scene information of the terminal includes: and under the condition that the current scene information of the terminal is determined to be the SRS forwarding mode in the high-speed environment or the SRS forwarding mode in the non-high-speed environment, acquiring a judgment threshold corresponding to the current scene information of the terminal to judge the current wireless environment state of the terminal.
Further, the determining the current wireless environment state of the terminal by obtaining the determination threshold corresponding to the current scene information of the terminal includes: sampling is carried out at P sampling points, and sampling information comprises: signal to interference plus noise ratio and power headroom; if the signal-to-interference-plus-noise ratio in the N sampling points in the P sampling points is higher than a signal-to-noise ratio threshold value, and the power surplus in the N sampling points in the P sampling points is higher than a power surplus quantity threshold value, determining that the terminal is in a first wireless environment state currently; if the signal-to-interference plus noise ratio in the N sampling points in the P sampling points is lower than a signal-to-noise ratio low threshold value, and the power headroom in the N sampling points in the P sampling points is lower than a power headroom low threshold value, determining that the terminal is currently in a second wireless environment state; if the signal-to-interference-plus-noise ratio in N sampling points in the P sampling points is higher than the signal-to-noise ratio low threshold and lower than the signal-to-noise ratio high threshold, and the power margin in the N sampling points in the P sampling points is higher than the power margin low threshold and lower than the power margin high threshold, determining that the terminal is currently in a third wireless environment state, wherein P is a positive integer and N is less than or equal to P; if the current scene information is the SRS alternate sending mode in the high-speed environment, the signal-to-noise ratio high threshold is a first signal-to-noise ratio high threshold, the signal-to-noise ratio low threshold is a first signal-to-noise ratio low threshold, the power surplus high threshold is a first power surplus high threshold, and the power surplus low threshold is a first power surplus low threshold; if the current scene information is the SRS alternate sending mode in the non-high-speed environment, the signal-to-noise ratio high threshold is a second signal-to-noise ratio high threshold, the signal-to-noise ratio low threshold is a second signal-to-noise ratio low threshold, the power surplus high threshold is a second power surplus high threshold, and the power surplus low threshold is a second power surplus low threshold.
Further, the matching of the beamforming feedback mode according to the current wireless environment state of the terminal includes: if the fact that the terminal is in the first wireless environment state currently is determined, beam forming is fed back to the base station through an SRS broadband mode; if the fact that the terminal is in the third wireless environment state currently is determined, beam forming is fed back to the base station through an SRS narrow-band mode; or if the terminal is determined to be in the first wireless environment state currently, feeding beam forming back to the base station through the PMI mode.
Further, after the matching of the beamforming feedback mode according to the current wireless environment state of the terminal, the method further includes: and when the switching of the beam forming feedback mode is finished, timing and setting the time length, and keeping the current beam forming feedback mode within the set time length.
In a second aspect, an embodiment of the present application further provides an apparatus for determining a beamforming feedback mode, where the apparatus includes: a processor and a memory for storing at least one instruction which is loaded and executed by the processor to implement the method for beamforming feedback mode determination provided by the first aspect. In one embodiment, the beamforming feedback mode determining apparatus provided in the second aspect may be a chip.
In a third aspect, a further embodiment of the present application further provides a chip, where the chip is connected to a memory, and a user of the memory stores at least one program or instruction, where the program or instruction when executed by the chip implements the method for determining a beamforming feedback mode provided in the first aspect.
In a fourth aspect, a further embodiment of the present application further provides an apparatus, where the apparatus includes an apparatus body and the beamforming feedback mode determining device provided in the third aspect. In another embodiment, the device may comprise a device body and the chip provided in the fourth aspect.
Yet another embodiment of the present application further provides a computer storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the method for determining a beamforming feedback mode provided by the first aspect.
By the technical scheme, the current wireless environment state of the terminal can be judged according to the judgment threshold corresponding to the current scene information of the terminal by determining the current scene information of the terminal, and the beam forming feedback mode is matched according to the current wireless environment state of the terminal. The channel information is fed back to the base station through a beam forming feedback mode suitable for the current scene and the wireless environment of the terminal, so that the problem that SRS feedback information is not accurate enough in a weak coverage scene or when the SINR of a user is poor is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention 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 below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on the drawings without inventive labor.
Fig. 1a is a schematic diagram of feeding back channel information in a PMI manner in the prior art;
fig. 1b is a diagram illustrating channel information feedback in an SRS mode according to the prior art;
fig. 2 is a flowchart of a method for determining a beamforming feedback mode according to an embodiment of the present application;
fig. 3 is a schematic diagram of a beamforming feedback mode according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a beamforming feedback mode determining apparatus according to yet another embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
There are two downlink multi-stream forming modes of the traffic channel: multi-stream beamforming based on SRS and on PMI feedback, beamforming based on SRS: based on the SRS, the beamforming is also called an open-loop space Division multiplexing mode, and by using the reciprocity of a Time Division Duplex (TDD) system, the base station calculates an estimated channel H from the uplink SRS to calculate a beamforming weight. Multi-stream beamforming based on PMI feedback: based on a BF (Channel State Information-Reference Signal, CSI-RS) for PMI measurement, a base station sends a Channel State Information-Reference Signal (CSI-RS) for PMI measurement, a terminal measures downlink Channel Quality, feeds back PMI, channel Quality Indication (CQI), and Rank Indication (RI) Information to the base station, and the base station selects an optimal PMI codebook according to the feedback of the terminal for beamforming.
The existing method for opening the beamforming weight often has a single problem, only can always open the SRS mode or the PMI mode, and cannot adapt to rapid change of a wireless environment. Therefore, the SRS feedback information is not accurate enough in a weak coverage scenario or when the SINR (Signal to Interference plus Noise Ratio) of the user is degraded.
To overcome the above technical problem, an embodiment of the present application provides a method for determining a beamforming feedback mode, and fig. 2 is a flowchart of the method for determining a beamforming feedback mode according to an embodiment of the present application, and as shown in fig. 2, the method includes the following steps:
step 201: and determining the current scene information of the terminal.
Step 202: and judging the current wireless environment state of the terminal according to the judgment threshold corresponding to the current scene information of the terminal.
Step 203: and matching a beam forming feedback mode according to the current wireless environment state of the terminal.
In the specific implementation of step 201, the scenario of the terminal may include an SRS transmission mode in a high speed environment, a non-SRS transmission mode in a high speed environment, an SRS transmission mode in a non-high speed environment, and a non-SRS transmission mode in a non-high speed environment.
In an embodiment, the terminal capability can be queried through signaling interaction to query whether the terminal has the SRS forwarding function, and further, the terminal supporting the SRS forwarding function can be marked. In addition, whether the terminal is in a high-speed moving state (high-speed mode) may also be determined through the number of cells experienced by the terminal within a set time (e.g., within five minutes) and/or a record of frequency offsets within the set time (e.g., within five minutes). In another determination method, if it is determined that the terminal is in a frequency offset state (the frequency of the received signal may deviate from the central frequency point on the base station side) within a first time range (for example, within more than 80% of the set time) in the frequency offset record within the set time, it is determined that the terminal is in the high-speed mode. In another determination method, if the number of cells experienced by the terminal within a set time is greater than a set number and the terminal is in a frequency offset state for most of the time (for example, more than 80% of the set time) in the frequency offset record within the set time, it is determined that the terminal is in the high speed mode. Further, a terminal in a high speed mode may be marked. Through the operation, the current scene information of the terminal can be determined, namely, the SRS transmission mode in the high-speed environment, the non-SRS transmission mode in the high-speed environment, the SRS transmission mode in the non-high-speed environment, or one of the non-SRS transmission modes in the non-high-speed environment.
In a specific implementation of step 202, after determining the current context information of the terminal, a wireless environment state judgment threshold corresponding to the current context information of the terminal may be obtained. Specifically, the mapping relationship between the terminal scenario and the wireless environment state judgment threshold is shown in table one:
watch 1
It should be noted that the SINR and PHR determination thresholds are only obtained when the current terminal supports the SRS round-robin function (i.e., in the scenario of the SRS round-robin mode in the high-speed environment or the non-high-speed environment), and otherwise (i.e., in the scenario of the non-SRS round-robin mode in the high-speed environment or the non-SRS round-robin mode in the non-high-speed environment) the multiflow beamforming directly based on PMI feedback is performed.
And if the current terminal supports the SRS polling function, further acquiring a corresponding SINR judgment threshold and a PHR judgment threshold according to the current scene of the terminal. If the current scene information of the terminal is the SRS recurrent pattern in the high-speed environment, acquiring a first SINR (high/low) threshold and a first PHR (high/low) threshold, and determining the current wireless environment state of the terminal according to the first SINR (high/low) threshold and the first PHR (high/low) threshold. And if the current scene information of the terminal is the SRS alternate transmission mode in the non-high-speed environment. A second SINR judgment (high/low) threshold and a second PHR judgment (high/low) threshold are obtained, and the current wireless environment state of the terminal is judged according to the second SINR judgment (high/low) threshold and the second PHR judgment (high/low) threshold.
In one embodiment, in the operation of determining the wireless environment state of the terminal, two factors, namely, a Signal to Interference plus Noise Ratio (SINR) and a Power Headroom Report (PHR), may be used as determination factors for determining the network environment state of the terminal. The SINR refers to a ratio of the strength of the received useful signal to the strength of the received interference signal, which can be simply understood as a signal-to-noise ratio. In order to increase stability, a P/N decision method can be adopted, and decision can be carried out according to sampling information after corresponding sampling is carried out. Specifically, if N sampling points among the P sampling points are higher than the SINR determination high threshold and the PHR determination high threshold, it is determined that the terminal is currently in the first wireless environment state (high-quality wireless environment). And if N sampling points in the P sampling points are lower than the SINR judgment low threshold and the PHR judgment low threshold, judging that the terminal is in a second wireless environment state (low-quality wireless environment) currently. And if N sampling points in the P sampling points are higher than the SINR judgment low threshold value and the PHR judgment low threshold value and lower than the SINR judgment low threshold value and the PHR judgment low threshold value, judging that the terminal is in a third wireless environment state (medium-quality wireless environment) currently.
In the specific implementation of step 203, the current wireless environment state of the terminal (high/medium/low quality wireless environment) determined in step 202 matches the feedback pattern of the terminal beamforming. Specifically, if it is determined that the current wireless environment state of the terminal is a high-quality wireless environment, the terminal may feed back beamforming to the base station through the SRS wideband mode. And if the current wireless environment state of the terminal is determined to be a medium-quality wireless environment, the terminal can feed back beam forming to the base station through the SRS narrow-band mode. If the current wireless environment state of the terminal is determined to be a low-quality wireless environment, the terminal can feed back beam forming to the base station through the PMI mode. When the wireless environment is poor, the PMI mode is used, and when the switching threshold is not reached, the current weight value is kept unchanged. The SRS wideband mode, SRS narrowband mode, and PMI mode are shown in fig. 3.
The feedback mode of the beam forming fed back to the base station by the terminal is matched in the self-adaptive mode, so that the accuracy of the feedback information can be improved.
In some embodiments, to avoid too frequent switching of the feedback mode and affect the utilization efficiency, a set time length may be counted when the switching of the beamforming feedback mode is completed, and the current beamforming feedback mode may be maintained for the set time length. Specifically, the beamforming transition guard timer t1 may be increased, that is, when a mode is switched to another mode, the switching cannot be performed again in the guard period.
According to the adaptive starting method of the beamforming in different scenes, the adaptive mode comprehensively considers the user moving speed and the wireless environment, finds out the most suitable balance point in different wireless environments through an iterative algorithm, and is greatly improved compared with the previous working mode.
Fig. 4 is a schematic structural diagram of a beamforming feedback pattern determining apparatus according to still another embodiment of the present application, and as shown in fig. 4, the apparatus may include a processor 401 and a memory 402, where the memory 402 is used to store at least one instruction, and the instruction is loaded by the processor 401 and executed to implement the beamforming feedback pattern determining method according to the embodiment shown in fig. 2. In an implementation manner, the beamforming feedback mode determining apparatus provided in the embodiment shown in fig. 4 may be a chip.
On the other hand, another embodiment of the present application further provides a chip, the chip is connected to a memory, a user of the memory stores at least one program or instruction, and when the program or instruction is executed by the chip, the method for determining a beamforming feedback mode provided in the embodiment shown in fig. 2 is implemented.
Yet another embodiment of the present application further provides a device, where the device includes a device body and the beamforming feedback mode determining apparatus provided in the embodiment shown in fig. 4. In another embodiment, the device may include a device body and the above chip connected to the memory.
Yet another embodiment of the present application further provides a computer storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method for determining a beamforming feedback mode provided in the embodiment shown in fig. 2.
It should be understood that the application may be an application program (native app) installed on the terminal, or may also be a web page program (webApp) of a browser on the terminal, which is not limited in this embodiment of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one type of logical functional division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer-readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a Processor (Processor) to execute some steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for determining a beamforming feedback pattern, the method comprising:
determining current scene information of a terminal;
judging the current wireless environment state of the terminal according to a judgment threshold corresponding to the current scene information of the terminal; and
and matching a beam forming feedback mode according to the current wireless environment state of the terminal.
2. The method of claim 1, wherein the determining current scene information of the terminal comprises:
judging whether the terminal supports the SRS forwarding function or not, and judging whether the terminal is currently in a high-speed moving state or not so as to determine that the current scene information of the terminal is one of the following: an SRS transmission mode in a high-speed environment, a non-SRS transmission mode in a high-speed environment, an SRS transmission mode in a non-high-speed environment or a non-SRS transmission mode in a non-high-speed environment.
3. The method of claim 1, wherein the determining whether the terminal is currently in a high-speed moving state comprises:
determining whether the number of cells experienced by the terminal in a set time is greater than a set number; and/or
Determining whether the terminal is in a frequency deviation state within a first time range in a frequency deviation record within a set time;
and if the number of the cells which are experienced by the terminal in the set time is larger than the set number and/or the terminal is in the frequency offset state in the first time range in the frequency offset record in the set time, determining that the terminal is in the high-speed moving state.
4. The method of claim 2, wherein the determining the current wireless environment state of the terminal according to the decision threshold corresponding to the current context information of the terminal comprises:
and under the condition that the current scene information of the terminal is determined to be the SRS forwarding mode in the high-speed environment or the SRS forwarding mode in the non-high-speed environment, acquiring a judgment threshold corresponding to the current scene information of the terminal to judge the current wireless environment state of the terminal.
5. The method of claim 4, wherein determining the current wireless environment state of the terminal by obtaining the decision threshold corresponding to the current context information of the terminal comprises:
sampling is carried out at P sampling points, and sampling information comprises: signal to interference plus noise ratio and power headroom;
if the signal-to-interference plus noise ratio in the N sampling points in the P sampling points is higher than a signal-to-noise ratio threshold value, and the power margin in the N sampling points in the P sampling points is higher than a power margin threshold value, determining that the terminal is currently in a first wireless environment state;
if the signal-to-interference plus noise ratio in the N sampling points in the P sampling points is lower than a signal-to-noise ratio low threshold value, and the power headroom in the N sampling points in the P sampling points is lower than a power headroom low threshold value, determining that the terminal is currently in a second wireless environment state; and
if the signal-to-interference-plus-noise ratio in the N sampling points in the P sampling points is higher than the signal-to-noise ratio low threshold and lower than the signal-to-noise ratio high threshold, and the power margin in the N sampling points in the P sampling points is higher than the power margin low threshold and lower than the power margin high threshold, determining that the terminal is currently in a third wireless environment state, wherein P is a positive integer and N is less than or equal to P;
if the current scene information is the SRS alternate sending mode in the high-speed environment, the signal-to-noise ratio high threshold is a first signal-to-noise ratio high threshold, the signal-to-noise ratio low threshold is a first signal-to-noise ratio low threshold, the power surplus high threshold is a first power surplus high threshold, and the power surplus low threshold is a first power surplus low threshold;
if the current scene information is the SRS alternate sending mode in the non-high-speed environment, the signal-to-noise ratio high threshold is a second signal-to-noise ratio high threshold, the signal-to-noise ratio low threshold is a second signal-to-noise ratio low threshold, the power surplus high threshold is a second power surplus high threshold, and the power surplus low threshold is a second power surplus low threshold.
6. The method of claim 5, wherein the matching the beamforming feedback pattern according to the current wireless environment status of the terminal comprises:
if the terminal is determined to be in the first wireless environment state currently, feeding back beam forming to the base station through an SRS broadband mode;
if the terminal is determined to be in the third wireless environment state currently, feeding back beam forming to the base station through the SRS narrowband mode; or alternatively
And if the terminal is determined to be in the first wireless environment state currently, feeding back beam forming to the base station through the PMI mode.
7. The method of claim 1, further comprising, after the matching the beamforming feedback pattern according to the current wireless environment status of the terminal, the steps of:
and when the switching of the beam forming feedback mode is finished, timing and setting the time length, and keeping the current beam forming feedback mode within the set time length.
8. An apparatus for determining a beamforming feedback mode, the apparatus comprising:
a processor and a memory for storing at least one instruction which is loaded into and executed by the processor to implement the beamforming feedback pattern determination method as claimed in any of claims 1-7.
9. An apparatus characterized in that the apparatus comprises the beamforming feedback pattern determining means of claim 8.
10. A computer readable storage medium having stored thereon a computer program, which when executed by a processor implements a beamforming feedback pattern determination method according to any of claims 1-5.
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