CN114520713A - Channel detection period configuration method, base station, equipment and medium - Google Patents
Channel detection period configuration method, base station, equipment and medium Download PDFInfo
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- H04L5/00—Arrangements affording multiple use of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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Abstract
The embodiment of the application discloses a channel detection period configuration method, which comprises the following steps: the base station acquires the moving speed of the terminal, wherein the moving speed is the moving speed of the terminal relative to the base station; the base station determines a channel detection period of the terminal according to the moving speed; and the base station reconfigures the user period of the terminal according to the channel detection period so that the base station and the terminal determine the channel quality according to the channel detection period. The embodiment of the application also provides a base station, equipment and a medium, so that the base station can adjust the channel detection period according to the moving speed of the terminal, the self-adaptive adjustment of cell resources is realized, and the utilization rate of frequency spectrum resources is improved.
Description
Technical Field
The present application relates to the field of electronics, and in particular, to a channel sounding period configuration method, a base station, a device, and a medium.
Background
In the current 5G communication system, Sounding Reference Signals (SRS) are used to estimate uplink channel quality of different frequency bands. The scheduler at the base station side may allocate Resource Blocks (RBs) with good instantaneous channel states to the Physical Uplink Shared Channel (PUSCH) transmission of a terminal (UE) according to the "uplink channel state estimation", and may select different transmission parameters (such as instantaneous data rate) and be used for the "uplink frequency selective scheduling".
In the current communication protocol, a set of subframes available for transmitting SRS in each system frame under each configuration is given, at least one SRS symbol is currently configured in each frame, and in the worst case (each subframe has SRS transmission), SRS occupies about 7% (1/14) of overhead. However, in some low-speed scenarios, SRS detection is not required to be performed so frequently, which results in wasted spectrum and a shortage of bandwidth resources when the traffic is large.
Therefore, the above problems in the prior art have yet to be improved.
Disclosure of Invention
The embodiment of the application provides a channel detection period configuration method, a base station, equipment and a medium, which are used for realizing measurement and positioning of an electron beam spot.
A first aspect of the embodiments of the present application provides a channel sounding period configuration method, including: a base station acquires the moving speed of a terminal, wherein the moving speed is the moving speed of the terminal relative to the base station; the base station determines a channel detection period of the terminal according to the moving speed; the base station reconfigures the user period of the terminal according to the channel detection period, so that the base station and the terminal determine the channel quality according to the channel detection period.
In this embodiment, the base station and the terminal determine the channel quality according to the channel sounding period. Therefore, the base station can adjust the channel detection period according to the moving speed of the terminal, the self-adaptive adjustment of cell resources is realized, and the utilization rate of frequency spectrum resources is improved.
Optionally, the determining, by the base station, a channel sounding period of the terminal according to the moving speed includes: when the moving speed is larger than or equal to a preset value, the base station shortens the channel detection period; when the moving speed is less than the preset value, the base station prolongs the channel detection period.
In this embodiment, when the mobile speed of the terminal is fast, the change of the channel condition of communication with the base station is large, and at this time, the period of channel detection is shortened, so as to adapt to the motion situation of the terminal. The period of channel sounding is extended at this time, thereby saving spectrum resources in a low-speed scenario.
Optionally, the determining, by the base station, a channel sounding period of the terminal according to the moving speed includes: the base station configures Sounding Reference Signal (SRS) symbols in a target frame, wherein the target frame is at least one frame in the communication process between the base station and the terminal; the base station shortens the channel sounding period, including: reducing the number of frames spaced between the target frames; the base station prolongs the channel detection period, and comprises: the number of frames of the interval between the target frames is increased.
In this embodiment, when the base station needs to adjust the channel sounding period, the interval between target frames including the SRS symbol is adjusted, so that the channel sounding period is adjusted in the SRS scene.
Optionally, before the base station acquires the moving speed of the terminal, the method further includes: the base station acquires an initial channel detection period of the terminal; the base station determines a channel sounding period of the terminal according to the moving speed, and the channel sounding period comprises the following steps: the base station adjusts the initial channel detection period according to the moving speed to obtain an updated channel detection period; the base station reconfiguring the user period of the terminal according to the channel detection period, including: and the base station reconfigures the user period of the terminal according to the updated channel detection period.
In this embodiment, the base station shortens or extends the period based on the original channel detection period, so that the period is dynamically adjusted in the communication process between the base station and the terminal, thereby improving the utilization rate of the frequency spectrum resource.
Optionally, the adjusting, by the base station, the initial channel sounding period according to the moving speed to obtain an updated channel sounding period includes: the base station shortens or prolongs the initial channel detection period according to the moving speed to obtain the updated channel detection period.
In this embodiment, the updated channel sounding period newly determined by the base station is different from the previous initial channel sounding period, and therefore, the base station needs to reconfigure the user period of the terminal according to the determined channel sounding period, so that the base station and the terminal determine the channel quality according to the channel sounding period.
Optionally, the acquiring, by the base station, the moving speed of the terminal includes: and the base station determines the moving speed of the terminal according to the change of the included angle between the moving direction of the terminal and the base station.
In this embodiment, in the process that the terminal moves relative to the base station, the included angle between the base station and the terminal moving direction changes, so that the moving speed of the terminal can be obtained according to the change condition of the included angle.
Optionally, the determining, by the base station, the moving speed of the terminal according to a change of an included angle between the moving direction of the terminal and the base station includes: the base station obtains the moving speed of the terminal by calculating the Doppler frequency offset.
In this embodiment, the base station may obtain the moving speed of the terminal by calculating the doppler frequency offset.
Optionally, if the base station and the terminal use TDD communication, the obtaining, by the base station, the moving speed of the terminal includes: the base station acquires target beams at different moments, wherein the target beams are beams which are shaped by the beams and point to the terminal by the base station; and the base station determines the moving speed of the terminal according to the correlation between the target beams at different moments.
In this embodiment, if the terminal is stationary with respect to the base station, the beams transmitted by the base station to the terminal are the same at different times. Therefore, the base station can judge that the current terminal is in a static state through the same beam forming. Similarly, if the terminal moves relative to the base station, the beams sent by the base station to the terminal at the first time and the second time are different, and the base station determines the movement speed of the terminal by comparing the correlation between the two beams.
A second aspect of the present application provides a base station, comprising:
an obtaining unit, configured to obtain a moving speed of a terminal, where the moving speed is a moving speed of the terminal relative to the base station;
a determining unit, configured to determine a channel sounding period of the terminal according to the moving speed acquired by the acquiring unit;
a reconfiguration unit, configured to reconfigure the user cycle of the terminal according to the channel sounding cycle determined by the determination unit, so that the base station and the terminal determine the channel quality according to the channel sounding cycle.
Optionally, the determining unit is further configured to:
when the moving speed is larger than or equal to a preset value, shortening the channel detection period;
and when the moving speed is less than the preset value, prolonging the channel detection period.
Optionally, the determining unit is further configured to:
configuring Sounding Reference Signal (SRS) symbols in a target frame, wherein the target frame is at least one frame in the communication process of the base station and the terminal;
the determining unit is further configured to:
reducing the number of frames spaced between the target frames; alternatively, the first and second electrodes may be,
the number of frames of the interval between the target frames is increased.
Optionally, the obtaining unit is further configured to:
acquiring an initial channel detection period of the terminal;
the determining unit is further configured to:
adjusting the initial channel detection period according to the moving speed to obtain an updated channel detection period;
the reconfiguration unit is further configured to:
and reconfiguring the user period of the terminal according to the updated channel detection period.
Optionally, the determining unit is further configured to:
and shortening or prolonging the initial channel detection period according to the moving speed to obtain the updated channel detection period.
Optionally, the obtaining unit is further configured to:
and determining the moving speed of the terminal according to the change of the included angle between the moving direction of the terminal and the base station.
Optionally, the obtaining unit is further configured to: and obtaining the moving speed of the terminal by calculating the Doppler frequency offset.
Optionally, the base station and the terminal use TDD communication, and the obtaining unit is further configured to:
acquiring target beams at different moments, wherein the target beams are beams which are shaped by the beams and point to the terminal by the base station;
and determining the moving speed of the terminal according to the correlation between the target beams at different moments.
The beneficial effects of the second aspect of the present application can be found in the above description of the first aspect, and are not described herein again.
A third aspect of the embodiments of the present application provides an electronic device, including: an interaction device, an input/output (I/O) interface, a processor, and a memory having program instructions stored therein; the interaction device is used for acquiring an operation instruction input by a user; the processor is arranged to execute program instructions stored in the memory to perform the method of any of the above described first aspects.
A fourth aspect of embodiments of the present application provides a computer-readable storage medium comprising instructions that, when executed on a computer device, cause the computer device to perform the method according to any one of the first aspects above.
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Fig. 1 is a schematic diagram of a protocol stack of an application system of a channel sounding period configuration method according to an embodiment of the present application;
fig. 2 is a schematic diagram of an embodiment of a channel sounding period configuration method according to an embodiment of the present application;
fig. 3 is a schematic diagram of another embodiment of a channel sounding period configuration method according to an embodiment of the present application;
fig. 4 is a schematic diagram of another embodiment of a channel sounding period configuration method according to an embodiment of the present application;
fig. 5 is a schematic diagram of another embodiment of a channel sounding period configuration method according to an embodiment of the present application;
fig. 6 is a schematic diagram of another embodiment of a channel sounding period configuration method according to an embodiment of the present application;
fig. 7 is a schematic diagram of an electronic device provided in an embodiment of the present application;
fig. 8 is a schematic diagram of a base station according to an embodiment of the present application.
Detailed Description
Embodiments of the present invention provide a channel sounding period configuration method, a base station, a device, and a medium, which are used to implement flexible adjustment of channel sounding period configuration, thereby improving spectrum utilization.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the above-described drawings (if any) are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be implemented in other sequences than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the current 5G communication system, Sounding Reference Signals (SRS) are used to estimate uplink channel quality of different frequency bands. The scheduler at the base station side may allocate Resource Blocks (RBs) with good instantaneous channel states to the Physical Uplink Shared Channel (PUSCH) transmission of a terminal (UE) according to the "uplink channel state estimation", and may select different transmission parameters (such as instantaneous data rate) and be used for the "uplink frequency selective scheduling".
In current systems, the set of subframe numbers available for transmitting SRS in a cell is determined by IE: the Sounding cell level resource configuration field Sounding grs-UL-ConfigCommon is configured by srs-subframe configuration field, which is a cell level configuration. srs-subframe config corresponds to T Table 5.5.3.3-2 of 36.211 as shown in FIG. 1. The cell-specific configuration 103 can be divided into two cases 101 and 102, where 101 is a schematic diagram of a protocol stack Table under Frequency Division Duplexing (FDD), and 102 is a schematic diagram of a protocol stack Table under Time Division Duplexing (TDD), and compared with this Table in the protocol, 1 column is added at the end to give a set of subframes available for sending SRS in each system frame under each configuration.
It can be seen that at least one SRS symbol is currently configured per frame, and in the worst case (SRS transmission per subframe), SRS occupies about 7% (1/14, i.e., one of 14 symbols per frame) overhead. However, in some low-speed scenarios, SRS detection is not required to be performed so frequently, which results in wasted spectrum and a shortage of bandwidth resources when the traffic is large.
Therefore, in order to solve the above problem, embodiments of the present application provide a method for configuring a channel sounding period, where the channel sounding period is adjusted according to a moving speed of a terminal, so that a cell resource allocated to an SRS can be adaptively adjusted according to a state of a cell, and a spectrum utilization rate is improved. For the sake of understanding, the method provided by the present application is described in detail below with reference to the accompanying drawings.
Referring to fig. 2, as shown in fig. 2, a first embodiment of a channel sounding period configuration method provided in the present application includes the following steps.
201. The base station acquires the moving speed of the terminal.
In this embodiment, the moving speed is the moving speed of the terminal relative to the base station. In a specific working process, the base station can determine the moving speed of the terminal by calculating the Doppler frequency offset, and can also determine the moving speed of the terminal by the beam direction in a time division duplex working scene. For the sake of understanding, this is explained in detail below with reference to the drawings.
Firstly, the base station determines the moving speed of the terminal by calculating the Doppler frequency offset.
In this embodiment, the terminal is a mobile terminal, which may specifically be a smart phone, a tablet computer, or a smart watch, as shown in fig. 3, in a process that the terminal 301 moves relative to the base station 302, for example, moving from a point a to a point b in fig. 3, an included angle between the moving directions of the base station 302 and the terminal 301 changes, and therefore, the method for determining the moving speed of the terminal through the doppler frequency offset includes:
and the base station determines the moving speed of the terminal according to the change of the included angle between the moving direction of the terminal and the base station.
In this embodiment, in order to determine the moving speed of the terminal through the change of the included angle between the moving direction of the terminal and the base station, the following formula is used to calculate the moving speed.
In the above formula, f is the central frequency point of the base station, c is the speed of light, v is the moving speed of the terminal, θ is the included angle between the base station and the moving direction of the terminal, fdIs the distance between the base station and the terminal.
Accordingly, the moving speed v of the mobile terminal can be obtained by the above formula.
And secondly, the base station determines the moving speed of the terminal according to the beam direction.
In this embodiment, in a TDD scenario, the moving speed of the terminal may also be determined according to the beam direction. As shown in fig. 4, this is specifically achieved by the following steps.
401. And the base station acquires target beams at different moments.
In this embodiment, the target beam is a beam that the base station points to the terminal after beam forming. In a 5G communication scenario, in order to increase channel capacity, both the base station and the terminal use multiple antennas, and an antenna system with multiple channels is configured between transmitting and receiving, and performs communication in a Multiple Input Multiple Output (MIMO) manner, in which a beam transmitted by the base station to the terminal needs to be shaped by a beam.
402. And the base station determines the moving speed of the terminal according to the correlation between the target beams at different moments.
In this embodiment, if the terminal is stationary with respect to the base station, the beams transmitted by the base station to the terminal are the same at different times. Therefore, the base station can judge that the current terminal is in a static state through the same beam forming. Similarly, if the terminal moves relative to the base station, the beams sent by the base station to the terminal at the first time and the second time are different, and the base station judges the movement speed of the terminal by comparing the correlation between the two beams. For example, the beamforming conditions of two moments before and after are obtained at intervals of a preset time period, the larger the correlation between the two beams is, the slower the speed of the terminal is, and conversely, the smaller the correlation between the two beams is, the faster the speed of the terminal is.
In this embodiment, in the manner described in steps 401 to 402, the determination of the terminal moving speed is achieved through the correlation between beams in the TDD scene.
In the manner shown in fig. 3 or fig. 4, the base station determines the moving speed of the terminal, and further performs the following steps based on the moving speed.
202. And the base station determines the channel detection period of the terminal according to the moving speed.
In this embodiment, the base station determines the channel sounding period according to the moving speed of the terminal, thereby implementing dynamic adjustment of the channel sounding period. Specifically, the method is described. As shown in fig. 5, the specific operation of the base station determining the channel sounding period of the terminal according to the moving speed includes the following steps.
501. And when the moving speed is greater than or equal to a preset value, the base station shortens the channel detection period.
In this embodiment, a person skilled in the art may set a specific value of the preset value according to actual needs, and the embodiment of the present application is not limited thereto. When the moving speed is greater than or equal to the preset value, it indicates that the current terminal moving speed is fast, the channel condition change of the communication with the base station is large, and at this time, the channel detection period needs to be shortened, so as to adapt to the motion condition of the terminal.
Further, the method provided by the embodiment of the present application may be applied to a wireless communication system that estimates channel quality by using SRS, wherein each period for performing channel quality sounding through SRS symbols constitutes a period for channel sounding, that is, an SRS period, and when the base station detects that the moving speed of the current terminal is fast, the SRS period is shortened to adapt to the change of the current operating condition.
Specifically, the specific working mode of the SRS period is as follows: the base station configures sounding reference signal SRS symbols in a target frame, wherein the target frame is at least one frame in a communication period between the base station and the terminal. The following steps need to be performed when the base station needs to shorten the channel sounding period.
The number of frames of the interval between the target frames is reduced.
In this embodiment, for example, in the current channel sounding period, one SRS symbol is configured for every 3 frames, and when the base station needs to shorten the channel sounding period, the base station adjusts to configure one SRS symbol for every 2 frames, so as to shorten the channel sounding period. Thereby enabling the terminal to perform channel quality sounding more frequently in the case of fast movement with respect to the base station.
502. And when the moving speed is less than the preset value, the base station prolongs the channel detection period.
In this embodiment, a person skilled in the art may set a specific value of the preset value according to actual needs, and the embodiment of the present application is not limited thereto. When the moving speed is lower than the preset value, the current terminal moving speed is lower, the terminal is in a low-speed moving scene, and at the moment, the change of the communication channel condition between the terminal and the base station is smaller, so that the channel quality does not need to be frequently detected. The period of channel detection needs to be extended at this time, so as to save spectrum resources in low-speed scenarios.
Further, the method provided by the embodiment of the present application may be applied to a wireless communication system that estimates channel quality by using SRS, where each period for performing channel quality sounding through an SRS symbol constitutes a period for channel sounding, that is, an SRS period, and when the base station detects that the current terminal has a slow moving speed, the base station increases the SRS period to improve the spectrum utilization rate in a low-speed scenario, thereby implementing adaptive adjustment of SRS cell resources.
Specifically, the specific working mode of the SRS period is as follows: the base station configures sounding reference signal SRS symbols in a target frame, wherein the target frame is at least one frame in a communication period between the base station and the terminal. The following steps need to be performed when the base station needs to extend the channel sounding period.
The number of frames of the interval between target frames is increased.
In this embodiment, for example, in the current channel sounding period, one SRS symbol is configured for every 2 frames, and when the base station needs to extend the channel sounding period, the base station adjusts to configure one SRS symbol for every 3 frames, so that the channel sounding period is extended. Therefore, the frequency of channel quality detection is reduced in the scene of low-speed movement of the terminal, the frequency spectrum utilization rate is improved, and the frequency spectrum resources are saved.
After the above-described steps shown in fig. 5, the base station determines the channel sounding period of the terminal according to the moving speed of the terminal, and at this time, further performs the following steps.
203. And the base station reconfigures the user period of the terminal according to the channel detection period.
In this embodiment, the base station reconfigures the user period of the terminal according to the determined channel sounding period, so that the base station and the terminal determine the channel quality according to the channel sounding period. Unification is achieved at the base station side and the terminal side.
The channel sounding period configuration method provided by the embodiment of the application comprises the following steps: the base station acquires the moving speed of the terminal, wherein the moving speed is the moving speed of the terminal relative to the base station; the base station determines a channel detection period of the terminal according to the moving speed; and the base station reconfigures the user period of the terminal according to the channel detection period so that the base station and the terminal determine the channel quality according to the channel detection period. Therefore, the base station can adjust the channel detection period according to the moving speed of the terminal, the self-adaptive adjustment of cell resources is realized, and the utilization rate of frequency spectrum resources is improved.
Further, the base station shortens or prolongs the channel sounding period based on the original channel sounding period, so as to dynamically adjust the period in the communication process between the base station and the terminal.
Referring to fig. 6, as shown in fig. 6, a second embodiment of a method for allocating a channel sounding period according to the present invention includes the following steps.
601. The base station acquires an initial channel sounding period of the terminal.
In this embodiment, the initial channel sounding period may be a channel sounding period that has not been adjusted by the method provided by the present application, or may be a channel sounding period that has been adjusted by the method provided by the present application, which is not limited in this embodiment.
602. The base station acquires the moving speed of the terminal.
In this embodiment, this step may refer to step 202, which is not described herein again.
603. And the base station adjusts the initial channel detection period according to the moving speed to obtain an updated channel detection period.
In this embodiment, the method for adjusting the initial channel sounding period by the base station according to the moving speed may specifically include the following steps.
And the base station shortens or prolongs the initial channel detection period according to the moving speed to obtain an updated channel detection period. Specifically, when the moving speed of the terminal is greater than or equal to the preset value, the base station shortens the initial channel sounding period, and obtains an updated channel sounding period which is shorter than the previous period. When the moving speed of the terminal is less than the preset value, the base station prolongs the initial channel detection period to obtain an updated channel detection period which is longer than the previous period. Optionally, the specific manner of the base station extending and shortening the period may refer to the above description about fig. 5, and is not described herein again.
604. And the base station reconfigures the user period of the terminal according to the updated channel detection period.
In this embodiment, the updated channel sounding period newly determined by the base station is different from the previous initial channel sounding period, and therefore, the base station needs to reconfigure the user period of the terminal according to the determined channel sounding period, so that the base station and the terminal determine the channel quality according to the channel sounding period. Unification is achieved at the base station side and the terminal side. Thereby completing the updating of the channel sounding period. The method is continuously and circularly executed in the process of communication between the base station and the terminal, thereby realizing the dynamic adjustment of the channel detection period.
Described in terms of hardware structures, the method may be implemented by one entity device, may also be implemented by multiple entity devices together, and may also be a logic function module in one entity device, which is not specifically limited in this embodiment of the present application.
For example, the above method may be implemented by the electronic device in fig. 7. Fig. 7 is a schematic hardware structure diagram of an electronic device according to an embodiment of the present disclosure; the electronic device may be a playback terminal or a parsing terminal in the embodiments of the present invention, and the electronic device includes at least one processor 701, a communication line 702, a memory 703 and at least one communication interface 704.
The processor 701 may be a general processing unit (CPU), a microprocessor, an application-specific integrated circuit (server IC), or one or more ICs for controlling the execution of programs in accordance with the present invention.
The communication link 702 may include a path for communicating information between the aforementioned components.
The memory 703 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disk read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory may be separate and coupled to the processor via a communication line 702. The memory may also be integral to the processor.
The memory 703 is used for storing computer-executable instructions for executing the present invention, and is controlled by the processor 701 to execute. The processor 701 is configured to execute computer-executable instructions stored in the memory 703 to implement the method for billing management provided by the following embodiments of the present application.
Optionally, the computer-executable instructions in the embodiments of the present application may also be referred to as application program codes, which are not specifically limited in the embodiments of the present application.
In particular implementations, processor 701 may include one or more CPUs such as CPU0 and CPU1 of fig. 7 for one embodiment.
In particular implementations, an electronic device may include multiple processors, such as processor 701 and processor 707 in fig. 7, for example, as an embodiment. Each of these processors may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).
In particular implementations, the electronic device may also include an output device 705 and an input device 706, as one embodiment. An output device 705 is in communication with the processor 701 and may display information in a variety of ways. For example, the output device 705 may be a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display device, a Cathode Ray Tube (CRT) display device, a projector (projector), or the like. The input device 706 is in communication with the processor 701 and may receive user input in a variety of ways. For example, the input device 706 may be a mouse, a keyboard, a touch screen device, or a sensing device, among others.
The electronic device may be a general-purpose device or a special-purpose device. In particular implementations, the electronic device may be a server, a wireless terminal device, an embedded device, or a device having a similar structure as in fig. 7. The embodiment of the application does not limit the type of the electronic equipment.
In the embodiment of the present application, the electronic device may be divided into the functional units according to the method example, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
For example, in a case that each functional unit is divided in an integrated manner, fig. 8 illustrates a schematic structural diagram of a base station provided in the embodiment of the present application.
Referring to fig. 8, as shown in fig. 8, a base station according to an embodiment of the present application includes.
An obtaining unit 801, configured to obtain a moving speed of a terminal, where the moving speed is a moving speed of the terminal relative to the base station;
a determining unit 802, configured to determine a channel sounding period of the terminal according to the moving speed acquired by the acquiring unit 801;
a reconfiguration unit 803, configured to reconfigure the user cycle of the terminal according to the channel sounding cycle determined by the determination unit 802, so that the base station and the terminal determine the channel quality according to the channel sounding cycle.
Optionally, the determining unit 802 is further configured to:
when the moving speed is larger than or equal to a preset value, shortening the channel detection period;
and when the moving speed is less than the preset value, prolonging the channel detection period.
Optionally, the determining unit 802 is further configured to:
configuring Sounding Reference Signal (SRS) symbols in a target frame, wherein the target frame is at least one frame in the communication process of the base station and the terminal;
the determining unit 802 is further configured to:
reducing the number of frames spaced between the target frames; alternatively, the first and second electrodes may be,
the number of frames of the interval between the target frames is increased.
Optionally, the obtaining unit 801 is further configured to:
acquiring an initial channel detection period of the terminal;
the determining unit 802 is further configured to:
adjusting the initial channel detection period according to the moving speed to obtain an updated channel detection period;
the reconfiguration unit 803 is further configured to:
and reconfiguring the user period of the terminal according to the updated channel detection period.
Optionally, the determining unit 802 is further configured to:
and shortening or prolonging the initial channel detection period according to the moving speed to obtain the updated channel detection period.
Optionally, the obtaining unit 801 is further configured to:
and determining the moving speed of the terminal according to the change of the included angle between the moving direction of the terminal and the base station.
Optionally, the obtaining unit 801 is further configured to: and obtaining the moving speed of the terminal by calculating the Doppler frequency offset.
Optionally, the base station and the terminal use TDD communication, and the obtaining unit 801 is further configured to:
acquiring target beams at different moments, wherein the target beams are beams which are formed by beams and point to the terminal by the base station;
and determining the moving speed of the terminal according to the correlation between the target beams at different moments.
Embodiments of the present application also provide a computer-readable storage medium, which includes instructions that, when executed on a computer, cause the computer to perform the method in the foregoing embodiments.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present application, "at least one item(s)" means one or more, "a plurality" means two or more. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple. In the present application, "A and/or B" is considered to include A alone, B alone, and A + B.
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 application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one type of logical module division, and other division manners may be available in actual implementation, for example, a plurality of 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 obtained according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, each module unit in the embodiments of the present application 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 hardware form, and can also be realized in a software module unit form.
The integrated unit, if implemented as a software module unit and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in this invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
The above-described embodiments are intended to explain the objects, aspects and advantages of the present invention in further detail, and it should be understood that the above-described embodiments are merely exemplary embodiments of the present invention.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some 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 application.
Claims (11)
1. A method for configuring a channel sounding period, comprising:
a base station acquires the moving speed of a terminal, wherein the moving speed is the moving speed of the terminal relative to the base station;
the base station determines a channel detection period of the terminal according to the moving speed;
and the base station reconfigures the user period of the terminal according to the channel detection period so that the base station and the terminal determine the channel quality according to the channel detection period.
2. The method of claim 1, wherein the base station determines the channel sounding period of the terminal according to the moving speed, and comprises:
when the moving speed is greater than or equal to a preset value, the base station shortens the channel detection period;
and when the moving speed is smaller than the preset value, the base station prolongs the channel detection period.
3. The method according to claim 1 or 2, wherein the base station determines the channel sounding period of the terminal according to the moving speed, and comprises:
the base station configures Sounding Reference Signal (SRS) symbols in a target frame, wherein the target frame is at least one frame in the communication process between the base station and the terminal;
the base station shortens the channel sounding period, including:
reducing the number of frames spaced between the target frames;
the base station extending the channel sounding period includes:
increasing the number of frames of the interval between the target frames.
4. The method according to any one of claims 1 to 3, wherein before the base station obtains the moving speed of the terminal, the method further comprises:
the base station acquires an initial channel detection period of the terminal;
the base station determines a channel sounding period of the terminal according to the moving speed, and the method comprises the following steps:
the base station adjusts the initial channel detection period according to the moving speed to obtain an updated channel detection period;
the base station reconfiguring the user period of the terminal according to the channel detection period comprises the following steps:
and the base station reconfigures the user period of the terminal according to the updated channel detection period.
5. The method of claim 4, wherein the base station adjusts the initial channel sounding period according to the moving speed to obtain an updated channel sounding period, and wherein the adjusting comprises:
and the base station shortens or prolongs the initial channel detection period according to the moving speed to obtain the updated channel detection period.
6. The method according to any one of claims 1 to 5, wherein the base station acquiring the moving speed of the terminal comprises:
and the base station determines the moving speed of the terminal according to the change of the included angle between the moving direction of the terminal and the base station.
7. The method according to claim 6, wherein the base station determines the moving speed of the terminal according to a change of an included angle between the moving direction of the terminal and the base station, and the method comprises:
and the base station acquires the moving speed of the terminal by calculating Doppler frequency offset.
8. The method according to any one of claims 1 to 5, wherein the base station and the terminal use Time Division Duplex (TDD) communication, and then the base station obtains the moving speed of the terminal, including:
the base station acquires target beams at different moments, wherein the target beams are beams which are formed by the beams and point to the terminal by the base station;
and the base station determines the moving speed of the terminal according to the correlation between the target beams at different moments.
9. A base station, comprising:
an obtaining unit, configured to obtain a moving speed of a terminal, where the moving speed is a moving speed of the terminal relative to the base station;
a determining unit, configured to determine a channel sounding period of the terminal according to the moving speed acquired by the acquiring unit;
a reconfiguration unit, configured to reconfigure the user cycle of the terminal according to the channel sounding cycle determined by the determination unit, so that the base station and the terminal determine the channel quality according to the channel sounding cycle.
10. An electronic device, characterized in that the electronic device comprises: an interaction device, an input/output (I/O) interface, a processor, and a memory having program instructions stored therein;
the interaction device is used for acquiring an operation instruction input by a user;
the processor is configured to execute program instructions stored in the memory to perform the method of any of claims 1 to 8.
11. A computer-readable storage medium comprising instructions that, when executed on a computer device, cause the computer device to perform the method of any of claims 1-8.
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