CN111224762B - Sounding reference signal resource allocation method and device - Google Patents
Sounding reference signal resource allocation method and device Download PDFInfo
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Abstract
The invention provides a sounding reference signal resource allocation method and device. The method comprises the following steps: determining a target sounding reference signal configuration period and a target physical resource block configuration number corresponding to a cell in which target equipment is located according to the maximum number of users accommodated by the cell; determining the maximum physical resource block configuration number corresponding to the target equipment and a first sounding reference signal configuration period according to the channel state information of the target equipment; determining a maximum sounding reference signal configuration period corresponding to the target device according to the moving speed of the target device; and selecting the number of the physical resource blocks which meet the conditions and the configuration period of the sounding reference signal to configure the target equipment according to the comparison result of the configuration period of the first sounding reference signal and the configuration period of the maximum sounding reference signal. The invention fully considers the influence of the user channel environment and the moving rate on the configuration period of the target detection reference signal and the configuration number of the target physical resource blocks, and fully balances the cell capacity.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for allocating sounding reference signal resources.
Background
In an LTE (Long Term Evolution) system, an uplink SRS (Sounding Reference Signal, Sounding Reference Signal of an uplink channel) may be used for uplink channel estimation, and may also be used for calculating a downlink beamforming factor by using channel reciprocity. According to the relevant parts of 3GPP specifications 36.211 and 36.213, the SRS time-frequency domain Resource size of a user can be adjusted by configuring different PRB (Physical Resource Block) sizes and transmission periods.
When a network of the existing LTE system configures SRS time-frequency domain resources for users, the network usually only considers the user number capacity of a cell, and when the number of users is less, the network allocates larger frequency domain resources and smaller period to the users; when there are more users, they are allocated smaller frequency domain resources and larger periodicity.
However, the above configuration strategy ignores the channel state and the moving speed of the user, and the channel state and the moving of the user are closely related to the resource allocation of the SRS.
When the channel state of the user is good, a larger SRS frequency domain resource can be allocated to the user so as to obtain better channel estimation performance, and when the channel state of the user is poor, the number of PRBs allocated to the SRS needs to consider the transmission power of the terminal, and if too many PRBs are allocated, the reception power on a single PRB is reduced, which is not favorable for channel estimation. When the moving speed of the user is slow, a larger SRS period may be allocated to the user, but once the moving speed of the user is fast, it is desirable that the SRS period is short enough to update the channel estimation result in time, so that the channel estimation can track the change of the upper channel.
Therefore, the conventional SRS resource allocation strategy does not consider the uplink channel environment of the user and the moving speed of the user at the same time, and cannot perform dynamic adaptation in real time according to the state of the user. Meanwhile, the cell capacity is not fully balanced on the premise of satisfying the user channel and the moving rate.
Disclosure of Invention
The invention provides a sounding reference signal resource allocation method and a device, which are used for solving the problems that the existing resource allocation strategy does not simultaneously consider the uplink channel environment of a user and the moving speed of the user, can not carry out dynamic self-adaptation in real time according to the state of the user, and does not fully balance the cell capacity on the premise of meeting the user channel and the moving speed.
In order to solve the above problem, the embodiment of the present invention is implemented as follows:
in a first aspect, an embodiment of the present invention provides a method for allocating sounding reference signal resources, including: determining a target sounding reference signal configuration period and a target physical resource block configuration number corresponding to a cell in which target equipment is located according to the maximum number of users accommodated by the cell; acquiring channel state information of the target equipment; determining the maximum physical resource block configuration number corresponding to the target equipment and a first sounding reference signal configuration period according to the channel state information; acquiring the moving speed of the target equipment; determining a maximum sounding reference signal configuration period corresponding to the target device according to the moving speed; comparing the first sounding reference signal configuration period with the maximum sounding reference signal configuration period; and according to the comparison result, selecting the physical resource block configuration number and the sounding reference signal configuration period which meet the conditions from the target sounding reference signal configuration period, the target physical resource block configuration number, the maximum physical resource block configuration number and the maximum sounding reference signal configuration period to configure the target equipment.
Preferably, the step of selecting a physical resource block configuration number and a sounding reference signal configuration period meeting conditions from the target sounding reference signal configuration period, the target physical resource block configuration number, the maximum physical resource block configuration number, and the maximum sounding reference signal configuration period according to the comparison result to configure the target device includes: when the first sounding reference signal configuration period is less than or equal to the maximum sounding reference signal configuration period, acquiring a maximum value between the maximum sounding reference signal configuration period and the target sounding reference signal configuration period; and configuring the target equipment according to the maximum physical resource block configuration number and the maximum value.
Preferably, the step of selecting a physical resource block configuration number and a sounding reference signal configuration period meeting conditions from the target sounding reference signal configuration period, the target physical resource block configuration number, the maximum physical resource block configuration number, and the maximum sounding reference signal configuration period according to the comparison result to configure the target device includes: when the first sounding reference signal configuration period is greater than the maximum sounding reference signal configuration period, obtaining a minimum value between the target physical resource block configuration number and the maximum physical resource block configuration number; and configuring the target equipment according to the maximum detection reference signal configuration period and the minimum value.
Preferably, after the step of selecting a physical resource block configuration number and a sounding reference signal configuration period meeting the condition from the target sounding reference signal configuration period, the target physical resource block configuration number, the maximum physical resource block configuration number, and the maximum sounding reference signal configuration period to configure the target device according to the comparison result, the method further includes: periodically acquiring the number of target users accommodated in the cell where the target equipment is located; and under the condition that the number of the target users is changed, reconfiguring the configuration number of the physical resource blocks and the configuration period of the sounding reference signal of the target equipment.
In a second aspect, an embodiment of the present invention further provides a device for allocating sounding reference signal resources, including: the target period and number determining module is used for determining a target sounding reference signal configuration period and a target physical resource block configuration number corresponding to a cell according to the maximum number of users accommodated by the cell where the target equipment is located; a channel state information obtaining module, configured to obtain channel state information of the target device; a maximum number and first period determining module, configured to determine, according to the channel state information, a maximum number of physical resource block configurations corresponding to the target device and a first sounding reference signal configuration period; the moving speed acquisition module is used for acquiring the moving speed of the target equipment; a maximum period determination module, configured to determine a maximum sounding reference signal configuration period corresponding to the target device according to the moving speed; a period comparison module, configured to compare the first sounding reference signal configuration period with the maximum sounding reference signal configuration period; and the period and number configuration module is used for selecting the physical resource block configuration number and the sounding reference signal configuration period which meet the conditions from the target sounding reference signal configuration period, the target physical resource block configuration number, the maximum physical resource block configuration number and the maximum sounding reference signal configuration period according to the comparison result to configure the target equipment.
Preferably, the period and number configuration module includes: a maximum value obtaining sub-module, configured to obtain a maximum value between the maximum sounding reference signal configuration period and the target sounding reference signal configuration period when the first sounding reference signal configuration period is less than or equal to the maximum sounding reference signal configuration period; and the first configuration submodule is used for configuring the target equipment according to the maximum physical resource block configuration number and the maximum value.
Preferably, the period and number configuration module includes: a minimum value obtaining sub-module, configured to obtain a minimum value between the target physical resource block configuration number and the maximum physical resource block configuration number when the first sounding reference signal configuration period is greater than the maximum sounding reference signal configuration period; and the second configuration submodule is used for configuring the target equipment according to the maximum detection reference signal configuration period and the minimum value.
Preferably, the method further comprises the following steps: a target user number obtaining module, configured to periodically obtain a number of target users accommodated by a cell in which the target device is located; and a reconfiguration module, configured to reconfigure the number of configured physical resource blocks and the sounding reference signal configuration period of the target device when the number of target users changes.
Compared with the prior art, the invention has the following advantages:
the embodiment of the invention provides a method and a device for allocating sounding reference signal resources, which are characterized in that according to the maximum number of users accommodated by a cell where target equipment is located, a target sounding reference signal configuration period and a target physical resource block configuration number corresponding to the cell are determined, channel state information of the target equipment is obtained, according to the channel state information, the maximum physical resource block configuration number corresponding to the target equipment and a first sounding reference signal configuration period are determined, the moving speed of the target equipment is obtained, and according to the moving speed, the maximum sounding reference signal configuration period corresponding to the target equipment is determined; and comparing the first sounding reference signal configuration period with the maximum sounding reference signal configuration period, and selecting the physical resource block configuration number and the sounding reference signal configuration period which meet the conditions from the target sounding reference signal configuration period, the target physical resource block configuration number, the maximum physical resource block configuration number and the maximum sounding reference signal configuration period according to the comparison result to configure the target equipment. The embodiment of the invention fully considers the influence of the user channel environment and the moving rate on the configuration period of the target detection reference signal and the configuration number of the target physical resource blocks, and simultaneously considers the relationship of balancing the number of the users which can be accommodated in the cell as far as possible on the premise of ensuring the user performance.
Drawings
Fig. 1 is a flowchart illustrating steps of a method for allocating sounding reference signal resources according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram illustrating an apparatus for allocating sounding reference signal resources according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example one
Referring to fig. 1, a flowchart illustrating steps of a method for allocating sounding reference signal resources according to an embodiment of the present invention is shown, which may specifically include the following steps:
step 101: and determining a target sounding reference signal configuration period and a target physical resource block configuration number corresponding to a cell in which the target equipment is located according to the maximum number of users accommodated by the cell.
In the embodiment of the present invention, the target device is also called a User Equipment (UE).
Uplink resources can be automatically allocated to the SRS of the target UE in the time domain and the frequency domain according to the channel state information of the target UE and the mobile terminal.
The target sounding reference signal configuration period (i.e., the target SRS configuration period) refers to an SRS configuration period that can be allocated to each user UE on the basis of the number of users that can be accommodated by the cell in which the target UE is located.
The target physical resource block configuration number (i.e. the target PRB configuration number) is the number of PRB configurations that can be allocated to each user UE on the basis of the number of users that can be accommodated by the cell in which the target UE is located.
In the invention, the target SRS configuration period and the target PRB configuration number which can be allocated to the target cell can be determined according to the maximum user number which can be accommodated by the cell where the target UE is located.
It can be understood that, it is a mature technology in the art to determine the target SRS configuration period and the number of target PRB configurations for a cell according to the maximum number of users that the cell can accommodate, and any method in the prior art that can obtain the target SRS configuration period and the number of target PRB configurations for the cell may be applied to the present invention, and no further description is given here in the embodiments of the present invention.
Since each user in a cell needs to have an individual SRS time-frequency resource, the configuration strategy of the SRS time-frequency resource affects the maximum number of users that the cell can accommodate, and the constraint relationship between the cell-level SRS configuration period and the number of PRB configurations is as follows:
in the above formula (1), N represents the maximum number of users that can be accommodated in the cell, TSRS_cellDenoted as target SRS configuration period, MSRS_cellThe number of frequency domain PRB resources occupied by the SRS, and K is other parameters affecting SRS allocation (for example, the number of symbols occupied by the SRS, cyclic shift configuration, and the like).
It should be noted that, the above-mentioned target SRS configuration period and the number of target PRB configurations are mainly considered based on the configuration adopted in a general scenario to satisfy a certain number of users in a cell, and the SRS parameters of the personalized configurations required by the users with limited uplink channels or high-speed mobility are not considered.
After determining the target SRS configuration period and the target PRB configuration number corresponding to the cell where the target UE is located, step 102 is executed.
Step 102: and acquiring the channel state information of the target equipment.
The Channel State Information (CSI) refers to the Channel environment quality Information of the target UE, and includes Information such as the path loss of the Channel and the uplink interference.
The channel state information of the target UE can be obtained by sending a first pilot signal to the target UE through a first pilot resource configured for the target UE in advance, receiving CSI fed back by the target UE through a first process configured for the target UE in advance, and receiving CSI fed back by a second process configured for the target UE in advance, wherein the CSI fed back through the first process and the CSI fed back through the second process are obtained by the target UE through measurement calculation at least based on the first pilot signal.
Of course, in practical applications, those skilled in the art may also use other manners to acquire the CSI of the target UE, and the specific acquisition manner is not limited in the embodiments of the present invention.
After acquiring the CSI of the target UE, step 103 is performed.
Step 103: and determining the maximum physical resource block configuration number corresponding to the target equipment and a first sounding reference signal configuration period according to the channel state information.
After obtaining the CSI of the target UE, the maximum number of PRB configurations of the target UE may be obtained according to the CSI of the target UE.
Specifically, the maximum number of PRB configurations may be obtained with reference to the following formula:
PSRS_OFFSET+10log10(MSRS_max_ue)+PO-PUSCH+α*PL+f＝PCMAX (2)
in the above formula (2), PSRS_OFFSET、PO-PUSCHPL and f are parameters which are configured by a base station and are related to uplink SRS transmitting power, wherein PSRS_OFFSET: a transmit power offset of the SRS relative to the PUSCH; pO-PUSCH: PUSCH expected received power; PL: link loss of an air interface environment where the user is located; α: a path loss factor; f: adjusting step length in power control; pCMAX: a target UE maximum transmit power; mSRS_max_ue: maximum number of PRB configurations.
The maximum number of PRB configurations of the target UE can be directly obtained through the above formula (2).
It should be understood that the above-mentioned manner is only one scheme for obtaining the maximum number of PRB configuration configurations of the target UE, which is listed for enabling those skilled in the art to better understand the technical solution of the embodiment of the present invention, and any one of the prior arts that can obtain the maximum number of PRB configuration of the target UE may be applied to the present invention, and the embodiment of the present invention is not limited herein.
In this embodiment of the present invention, the first SRS configuration period refers to an SRS configuration period of the target UE to which the SRS can be maximally allocated under the channel state information of the target UE.
The first SRS configuration period of the target UE may be obtained with reference to the following formula (3):
in the above formula (3), TSRS_ueA first SRS configuration period representing the target UE, N representing the number of users that can be accommodated by the cell in which the target UE is located, MSRS_max_ueThe maximum number of PRB configurations is shown, and K represents other parameters influencing SRS allocation (such as the number of symbols occupied by SRS, cyclic shift configuration and the like).
Referring to the above formula (3), the first SRS configuration period of the target UE may be obtained, and how to obtain the first SRS configuration period of the target UE according to the CSI of the target UE is a mature technology in the art, and any method in the prior art that can obtain the first SRS configuration period of the target UE may be applied to the present invention, and is not described herein again in the embodiments of the present invention.
After acquiring the maximum number of PRB locations of the target UE and the first SRS configuration period according to the CSI of the target UE, step 104 is performed.
Step 104: and acquiring the moving speed of the target equipment.
After determining the maximum number of PRB locations of the target UE and the first SRS configuration period, the moving speed of the target UE may also be obtained, specifically, a first location (may be latitude and longitude information) where the target UE is located at a first time may be recorded, a second location (may be latitude and longitude information) where the target UE is located at a second time may be recorded, and the moving speed of the target UE may be obtained by calculating according to the first time, the second time, the first location, and the second location.
Of course, in practical applications, a person skilled in the art may also obtain the moving speed of the target UE by using other manners, which is not limited in the embodiment of the present invention.
After acquiring the moving speed of the target UE, step 105 is performed.
Step 105: and determining the maximum sounding reference signal configuration period corresponding to the target equipment according to the moving speed.
In the embodiment of the present invention, the maximum SRS configuration period refers to a maximum SRS period that can be configured for the target UE when the target UE is in a specific moving speed.
After obtaining the moving speed of the target UE, the maximum SRS configuration period configured by the target UE may be obtained according to the moving speed of the target UE, and the maximum SRS configuration period may be obtained through simulation data, for example, the mobile rate less than 120km/h suggests that the SRS period does not exceed 160 ms.
How to obtain the maximum SRS configuration period of the target UE through simulation data is a mature technology in the art, and the embodiments of the present invention are not described in detail herein.
After determining the maximum SRS configuration period corresponding to the target UE, step 106 is performed.
Step 106: comparing the first sounding reference signal configuration period with the maximum sounding reference signal configuration period.
After the first SRS configuration period and the maximum SRS configuration period of the target UE are obtained, the first SRS configuration period and the maximum SRS configuration period of the target UE may be compared, that is, the size relationship between the first SRS configuration period and the maximum SRS configuration period is determined, and step 107 is performed.
Step 107: and according to the comparison result, selecting the physical resource block configuration number and the sounding reference signal configuration period which meet the conditions from the target sounding reference signal configuration period, the target physical resource block configuration number, the maximum physical resource block configuration number and the maximum sounding reference signal configuration period to configure the target equipment.
After obtaining the size relationship between the first SRS configuration period and the maximum SRS configuration period, the target UE may be configured by selecting the number of PRB configurations and the SRS configuration period that meet the conditions from the target SRS configuration period, the number of target PRB configurations, the number of maximum PRB configurations, and the maximum SRS configuration period according to the comparison result, and specifically, the following preferred embodiment is described in detail.
In a preferred embodiment of the present invention, the step 107 may include:
substep A1: when the first sounding reference signal configuration period is less than or equal to the maximum sounding reference signal configuration period, acquiring a maximum value between the maximum sounding reference signal configuration period and the target sounding reference signal configuration period;
substep A2: and configuring the target equipment according to the maximum physical resource block configuration number and the maximum value.
In the embodiment of the present invention, when the first SRS configuration period corresponding to the target UE is less than or equal to the maximum SRS configuration period, a maximum value between the maximum SRS configuration period corresponding to the target UE and the target SRS configuration period may be obtained, and the SRS configuration period with the maximum value is used as the SRS configuration period of the target UE, for example, when the first SRS configuration period corresponding to the target UE is less than or equal to the maximum SRS configuration period, the maximum SRS configuration period corresponding to the target UE is 3, and the target SRS configuration period is 5, the target SRS configuration period is used as the SRS configuration period of the target UE.
It should be understood that the above examples are only examples for better understanding of the technical solutions of the embodiments of the present invention, and are not to be taken as the only limitation of the embodiments of the present invention.
After obtaining the maximum value between the maximum SRS configuration period and the target SRS configuration period, the target UE may be configured according to the maximum number of PRB configurations corresponding to the target UE and the maximum value (i.e., the SRS configuration period with a larger value between the maximum SRS configuration period and the target SRS configuration period).
In another preferred embodiment of the present invention, the step 107 may include:
substep B1: when the first sounding reference signal configuration period is greater than the maximum sounding reference signal configuration period, obtaining a minimum value between the target physical resource block configuration number and the maximum physical resource block configuration number;
substep B2: and configuring the target equipment according to the maximum detection reference signal configuration period and the minimum value.
In this embodiment of the present invention, when the first SRS configuration period corresponding to the target UE is greater than the maximum SRS configuration period, the minimum value between the maximum PRB configuration number corresponding to the target UE and the target PRB configuration number may be obtained, and the minimum PRB configuration number is used as the configuration number of the PRB of the target UE.
It should be understood that the above examples are only examples for better understanding of the technical solutions of the embodiments of the present invention, and are not to be taken as the only limitation of the embodiments of the present invention.
After obtaining the minimum value between the maximum number of PRB allocation and the target number of PRB allocation, the target UE may be allocated with the maximum SRS allocation period and the minimum value corresponding to the target UE (that is, the maximum number of PRB allocation and the target number of PRB allocation having a smaller value).
In the present invention, the number of users that can be accommodated by the cell in which the target UE is located may also be measured in real time, for example, when the cell in which the target UE is located changes, the number of users that can be accommodated by the cell in which the target UE is currently located may change, and the like, and certainly, the number of users that can be accommodated by the cell may also change due to other situations.
When the number of users that can be accommodated by the cell where the target UE is located changes, the SRS configuration period and the number of PRB configurations of the target UE need to be reconfigured, and specifically, the following detailed description is given to a preferred embodiment.
In a preferred embodiment of the present invention, after the step 107, the method may further include:
step S1: periodically acquiring the number of target users accommodated in the cell where the target equipment is located;
step S2: and under the condition that the number of the target users is changed, reconfiguring the configuration number of the physical resource blocks and the configuration period of the sounding reference signal of the target equipment.
In the embodiment of the present invention, the number of target users refers to the maximum number of users that can be accommodated by the cell in which the target UE is located.
The number of target users accommodated in the cell where the target UE is located may also be periodically obtained in real time, for example, every 5 hours, 3 hours, 1 day, and the like, which is not limited in the embodiment of the present invention.
When the number of target users in the cell where the target UE is located changes, the number of PRB configurations and the SRS configuration period of the target UE may be reconfigured, and the reconfiguration process may refer to the specific implementation process of step 101 to step 107, which is not described herein again in this embodiment of the present invention.
According to the method for allocating sounding reference signal resources provided by the embodiment of the invention, according to the maximum number of users accommodated by a cell in which target equipment is located, a target sounding reference signal configuration period and a target physical resource block configuration number corresponding to the cell are determined, channel state information of the target equipment is obtained, according to the channel state information, the maximum physical resource block configuration number corresponding to the target equipment and a first sounding reference signal configuration period are determined, the moving speed of the target equipment is obtained, and according to the moving speed, the maximum sounding reference signal configuration period corresponding to the target equipment is determined; and comparing the first sounding reference signal configuration period with the maximum sounding reference signal configuration period, and selecting the physical resource block configuration number and the sounding reference signal configuration period which meet the conditions from the target sounding reference signal configuration period, the target physical resource block configuration number, the maximum physical resource block configuration number and the maximum sounding reference signal configuration period according to the comparison result to configure the target equipment. The embodiment of the invention fully considers the influence of the user channel environment and the moving rate on the configuration period of the target detection reference signal and the configuration number of the target physical resource blocks, and simultaneously considers the relationship of balancing the number of the users which can be accommodated in the cell as far as possible on the premise of ensuring the user performance.
Example two
Referring to fig. 2, a schematic structural diagram of a sounding reference signal resource allocation apparatus according to an embodiment of the present invention is shown, which may specifically include:
a target period and number determining module 210, configured to determine, according to the maximum number of users accommodated by a cell in which a target device is located, a target sounding reference signal configuration period and a target physical resource block configuration number corresponding to the cell; a channel state information obtaining module 220, configured to obtain channel state information of the target device; a maximum number and first period determining module 230, configured to determine, according to the channel state information, a maximum number of configured physical resource blocks corresponding to the target device and a first sounding reference signal configuration period; a moving speed obtaining module 240, configured to obtain a moving speed of the target device; a maximum period determining module 250, configured to determine a maximum sounding reference signal configuration period corresponding to the target device according to the moving speed; a period comparison module 260, configured to compare the first sounding reference signal configuration period with the maximum sounding reference signal configuration period; and a period and number configuration module 270, configured to select a physical resource block configuration number and a sounding reference signal configuration period that meet a condition from the target sounding reference signal configuration period, the target physical resource block configuration number, the maximum physical resource block configuration number, and the maximum sounding reference signal configuration period according to a comparison result, to configure the target device.
Preferably, the period and number configuration module 270 includes: a maximum value obtaining sub-module, configured to obtain a maximum value between the maximum sounding reference signal configuration period and the target sounding reference signal configuration period when the first sounding reference signal configuration period is less than or equal to the maximum sounding reference signal configuration period; and the first configuration submodule is used for configuring the target equipment according to the maximum physical resource block configuration number and the maximum value.
Preferably, the period and number configuration module 270 includes: a minimum value obtaining sub-module, configured to obtain a minimum value between the target physical resource block configuration number and the maximum physical resource block configuration number when the first sounding reference signal configuration period is greater than the maximum sounding reference signal configuration period; and the second configuration submodule is used for configuring the target equipment according to the maximum detection reference signal configuration period and the minimum value.
Preferably, the apparatus further comprises: a target user number obtaining module, configured to periodically obtain a number of target users accommodated by a cell in which the target device is located; and a reconfiguration module, configured to reconfigure the number of configured physical resource blocks and the sounding reference signal configuration period of the target device when the number of target users changes.
The sounding reference signal resource allocation device provided in the embodiment of the present invention determines, according to the maximum number of users accommodated by a cell in which a target device is located, a target sounding reference signal configuration period and a target physical resource block configuration number corresponding to the cell, acquires channel state information of the target device, determines, according to the channel state information, the maximum physical resource block configuration number and a first sounding reference signal configuration period corresponding to the target device, acquires a moving speed of the target device, and determines, according to the moving speed, the maximum sounding reference signal configuration period corresponding to the target device; and comparing the first sounding reference signal configuration period with the maximum sounding reference signal configuration period, and selecting the physical resource block configuration number and the sounding reference signal configuration period which meet the conditions from the target sounding reference signal configuration period, the target physical resource block configuration number, the maximum physical resource block configuration number and the maximum sounding reference signal configuration period according to the comparison result to configure the target equipment. The embodiment of the invention fully considers the influence of the user channel environment and the moving rate on the configuration period of the target detection reference signal and the configuration number of the target physical resource blocks, and simultaneously considers the relationship of balancing the number of the users which can be accommodated in the cell as far as possible on the premise of ensuring the user performance.
While, for purposes of simplicity of explanation, the foregoing method embodiments have been described as a series of acts or combination of acts, it will be appreciated by those skilled in the art that the present invention is not limited by the illustrated ordering of acts, as some steps may occur in other orders or concurrently with other steps in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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 an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above provides a method and a device for allocating sounding reference signal resources, which are described in detail, and the present invention applies specific examples to illustrate the principles and embodiments of the present invention, and the description of the above embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (4)
1. A method for allocating sounding reference signal resources, comprising:
determining a target sounding reference signal configuration period and a target physical resource block configuration number corresponding to a cell in which target equipment is located according to the maximum number of users accommodated by the cell;
acquiring channel state information of the target equipment;
determining the maximum physical resource block configuration number corresponding to the target equipment and a first sounding reference signal configuration period according to the channel state information;
acquiring the moving speed of the target equipment;
determining a maximum sounding reference signal configuration period corresponding to the target device according to the moving speed;
comparing the first sounding reference signal configuration period with the maximum sounding reference signal configuration period;
according to the comparison result, selecting the physical resource block configuration number and the sounding reference signal configuration period which meet the conditions from the target sounding reference signal configuration period, the target physical resource block configuration number, the maximum physical resource block configuration number and the maximum sounding reference signal configuration period to configure the target equipment;
wherein, the step of selecting the physical resource block configuration number and the sounding reference signal configuration period meeting the condition from the target sounding reference signal configuration period, the target physical resource block configuration number, the maximum physical resource block configuration number and the maximum sounding reference signal configuration period according to the comparison result to configure the target device includes:
when the first sounding reference signal configuration period is less than or equal to the maximum sounding reference signal configuration period, acquiring a maximum value between the maximum sounding reference signal configuration period and the target sounding reference signal configuration period; configuring the target equipment according to the maximum physical resource block configuration number and the maximum value;
when the first sounding reference signal configuration period is greater than the maximum sounding reference signal configuration period, obtaining a minimum value between the target physical resource block configuration number and the maximum physical resource block configuration number; and configuring the target equipment according to the maximum detection reference signal configuration period and the minimum value.
2. The method according to claim 1, wherein after the step of selecting a number of eligible physical resource block configurations and a sounding reference signal configuration period from the target sounding reference signal configuration period, the target number of physical resource block configurations, the maximum number of physical resource block configurations and the maximum sounding reference signal configuration period according to the comparison result to configure the target device, the method further comprises:
periodically acquiring the number of target users accommodated in the cell where the target equipment is located;
and under the condition that the number of the target users is changed, reconfiguring the configuration number of the physical resource blocks and the configuration period of the sounding reference signal of the target equipment.
3. An apparatus for allocating sounding reference signal resources, comprising:
the target period and number determining module is used for determining a target sounding reference signal configuration period and a target physical resource block configuration number corresponding to a cell according to the maximum number of users accommodated by the cell where the target equipment is located;
a channel state information obtaining module, configured to obtain channel state information of the target device;
a maximum number and first period determining module, configured to determine, according to the channel state information, a maximum number of physical resource block configurations corresponding to the target device and a first sounding reference signal configuration period;
the moving speed acquisition module is used for acquiring the moving speed of the target equipment;
a maximum period determination module, configured to determine a maximum sounding reference signal configuration period corresponding to the target device according to the moving speed;
a period comparison module, configured to compare the first sounding reference signal configuration period with the maximum sounding reference signal configuration period;
a period and number configuration module, configured to select a physical resource block configuration number and a sounding reference signal configuration period that meet a condition from the target sounding reference signal configuration period, the target physical resource block configuration number, the maximum physical resource block configuration number, and the maximum sounding reference signal configuration period according to a comparison result to configure the target device;
wherein, the period and number configuration module comprises:
a maximum value obtaining sub-module, configured to obtain a maximum value between the maximum sounding reference signal configuration period and the target sounding reference signal configuration period when the first sounding reference signal configuration period is less than or equal to the maximum sounding reference signal configuration period;
a first configuration submodule, configured to configure the target device according to the maximum number of configured physical resource blocks and the maximum value;
a minimum value obtaining sub-module, configured to obtain a minimum value between the target physical resource block configuration number and the maximum physical resource block configuration number when the first sounding reference signal configuration period is greater than the maximum sounding reference signal configuration period;
and the second configuration submodule is used for configuring the target equipment according to the maximum detection reference signal configuration period and the minimum value.
4. The apparatus of claim 3, further comprising:
a target user number obtaining module, configured to periodically obtain a number of target users accommodated by a cell in which the target device is located;
and a reconfiguration module, configured to reconfigure the number of configured physical resource blocks and the sounding reference signal configuration period of the target device when the number of target users changes.
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| US20230239124A1 (en) * | 2020-06-08 | 2023-07-27 | Qualcomm Incorporated | Combinable a sub-resource block (rb) sounding reference signal (srs) transmission for coverage enhancement |
| CN113840324B (en) * | 2020-06-24 | 2024-01-30 | 华为技术有限公司 | Measurement reporting method and device |
| CN114501486B (en) * | 2020-11-12 | 2023-08-15 | 中国移动通信集团浙江有限公司 | Cell parameter configuration method and device under high-speed mobile scene and computing equipment |
| CN114520713B (en) * | 2020-11-20 | 2024-03-01 | 上海华为技术有限公司 | Channel detection period configuration method, base station, equipment and medium |
| CN114337966B (en) * | 2021-12-11 | 2023-08-29 | 京信网络系统股份有限公司 | Wireless resource allocation method, device, computer equipment and storage medium |
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