CN109474399B

CN109474399B - Method, device and base station for configuring sounding reference signal resources

Info

Publication number: CN109474399B
Application number: CN201710805498.2A
Authority: CN
Inventors: 徐海荣; 颜艳华; 胡敏; 李翔飞; 饶天宇; 孙珊珊; 赵陆明
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2017-09-08
Filing date: 2017-09-08
Publication date: 2021-12-31
Anticipated expiration: 2037-09-08
Also published as: CN109474399A

Abstract

The embodiment of the invention provides a method, a device and a base station for allocating sounding reference signal resources, wherein the method for allocating the sounding reference signal resources comprises the following steps: determining a user terminal UE needing to reconfigure short-period SRS resources, wherein the short period is an SRS configuration period which meets the requirements of each service of the UE; and according to the residual situation of the short-period SRS resources, carrying out short-period SRS resource configuration on the UE needing to be reconfigured with the short-period SRS resources. The configuration method can distribute the short-period SRS resources to users needing the short-period SRS resources more, and can solve the problems that the SRS resources actually needed by each UE cannot be ensured under the condition that the short-period SRS resources are limited, and the SRS resources do not meet the requirements of related functions on the period of the SRS resources or the time domain position of the subframe offset relative to the uplink scheduling request.

Description

Method, device and base station for configuring sounding reference signal resources

Technical Field

The present invention relates to the field of communications, and in particular, to a method, an apparatus, and a base station for allocating Sounding Reference Signal (SRS) resources.

Background

SRS is used by an evolved NodeB (eNodeB) of a Long Term Evolution (LTE) System and a base station gbnodeb (G) of the Fifth-Generation Mobile Communication System (5G) to estimate uplink channel quality of different frequency bands. The scheduler at the base station side may allocate a Resource Block (RB) with a good instantaneous Channel state to a Physical Uplink Shared Channel (PUSCH) of a User Equipment (UE) according to an Uplink Channel state estimation fed back by the SRS, and may select different transmission parameters, such as an instantaneous data rate, and select different parameters related to corresponding Uplink multi-antenna transmission for Uplink frequency selective scheduling. SRS can also be used to estimate uplink timing (timing), and under the assumption that downlink/uplink channels benefit each other, especially under Time Division Duplex (TDD), the downlink channel quality is estimated using channel symmetry; and for downlink Beamforming (BF) and uplink out-of-sync detection.

At present, the method for implementing SRS resource allocation by a base station manufacturer is basically one of the following two methods:

1. SRS resources allocated by all UE under a cell of a base station are in the same period;

2. although the SRS resource of the cell of the base station may be configured with a plurality of SRS periods, the system does not dynamically adjust the SRS periods according to the traffic (or called the function) requirements of the user terminal.

The SRS resource allocation is that the base station allocates the SRS resources in a first-come first-serve manner according to the sequence of UE access, and the method has the following disadvantages:

1. because the SRS resource is limited, especially for a TDD system, the number of uplink subframes is small, the SRS resource is more limited, and the SRS resource actually needed by each subsequent UE cannot be ensured;

2. even if the UE has the SRS resource, the resource does not meet the requirement of the related function for the period of the SRS resource or the time domain position of the subframe offset relative to the Scheduling Request (SR).

Disclosure of Invention

In order to solve the above technical problem, embodiments of the present invention provide a method, an apparatus, and a base station for configuring sounding reference signal resources, which can solve the problem that SRS resources actually required by UEs cannot be guaranteed when SRS resources in a short period are limited.

According to an aspect of the embodiments of the present invention, a method for configuring SRS resources is provided, including:

determining User Equipment (UE) needing to be reconfigured with short-period SRS resources;

according to the remaining situation of the short-period SRS resource, the short-period SRS resource is configured for the UE needing to be reconfigured with the short-period SRS resource;

wherein the short period is an SRS configuration period that meets each service requirement of the UE.

According to another aspect of the embodiments of the present invention, there is also provided a device for configuring SRS resources for sounding reference signals, including:

the determining module is used for determining the user terminal UE needing to reconfigure the short-period SRS resource;

the resource adjusting module is used for carrying out short-period SRS resource configuration on the UE needing to be reconfigured with the short-period SRS resources according to the residual condition of the short-period SRS resources;

According to another aspect of the embodiment of the present invention, there is also provided a base station, including the apparatus for configuring SRS resources as described above.

According to still another aspect of the embodiments of the present invention, there is also provided a base station, including: the SRS resource allocation method comprises the following steps of the SRS resource allocation method, wherein the SRS resource allocation method comprises the following steps.

According to still another aspect of the embodiments of the present invention, there is also provided a computer-readable storage medium, on which a computer program is stored, which when executed by a processor, implements the steps in the method for configuring SRS resources as described above.

The embodiment of the invention has the following beneficial effects:

the traditional SRS resource allocation mode is that a base station allocates in a first-come-first-obtained mode according to the sequence of UE access, but when the SRS resource is limited, especially for a TDD system, the number of uplink subframes is small, the SRS resource is more limited, and the problem that the SRS resource actually required by each subsequent UE cannot be guaranteed exists at the moment. In order to solve the problem, the configuration method provided in the embodiment of the present invention first determines the user equipment UE that needs to reconfigure the short-period SRS resource, and then performs short-period SRS resource configuration on the UE that needs to reconfigure the short-period SRS resource according to the remaining situation of the short-period SRS resource. Therefore, the configuration method can distribute the short-period SRS resources to users needing the short-period SRS resources more, and can solve the problems that the SRS resources actually needed by each UE cannot be ensured under the condition that the short-period SRS resources are limited, and the SRS resources do not meet the requirements of related functions on the period of the SRS resources or the time domain position of the subframe offset relative to the uplink scheduling request.

Secondly, under the condition that the short-period SRS resource is limited, the SRS resource is arranged according to the requirements of the service (or called function) currently made by each UE. For example, according to service requirement arrangement of services such as VoLTE (Voice over LTE) of each UE, CoMP (Coordinated Multiple Points Transmission/Reception), BF (Massive MIMO, large-scale antenna space division multiplexing), and the like on SRS resources, priority of service requirements of SRS resources corresponding to each UE is obtained, and UE level configuration of SRS is flexibly adjusted, so as to achieve the purpose of meeting actual requirements of each UE on SRS resources, and ensure that functions of each UE have optimal performance.

Drawings

Fig. 1 is a flowchart of a method for configuring SRS resources according to an embodiment of the present invention;

fig. 2 is a flowchart of another SRS resource configuration method according to an embodiment of the present invention;

fig. 3 is a schematic diagram of initializing a time domain of a cell SRS resource according to an embodiment of the present invention;

fig. 4 is a flowchart of a method for configuring SRS resources according to another embodiment of the present invention;

fig. 5 is a schematic structural diagram of an apparatus for configuring SRS resources according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a base station according to another embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

The terms first, second and the like in the description and in the claims of the present invention are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.

Because the short-period SRS resource is limited, the system needs to ensure that the UE which needs the short period most can be preferentially allocated to the short-period SRS resource, and in order to ensure that the overall performance of the system is better improved, the embodiment of the invention provides a method for allocating the SRS resource. Fig. 1 is a flowchart of a method for configuring SRS resources according to an embodiment of the present invention, and referring to fig. 1, the method for configuring SRS resources includes:

s101, determining the user terminal UE needing to reconfigure the short-period SRS resource.

Specifically, the UE that needs to reconfigure the short periodic SRS resource may be counted to obtain a UE short periodic SRS resource reconfiguration list, where the UEs in the UE short periodic SRS resource reconfiguration list are sorted according to the priority of the reconfigured short periodic SRS resource, which is not limited to this.

For example, the base station sorts the SRS resource requirements according to the current functions performed by each UE to obtain a short-period SRS resource reconfiguration list of the UE, and as shown in table 1, a larger index value indicates a higher priority. Wherein the UE includes, but is not limited to, the following functions: voice over LTE (VoLTE), Coordinated Multiple Points Transmission/Reception (CoMP), BF, and/or large-scale antenna space division multiplexing (Massive MIMO, MM), and the like. And flexibly adjusting the UE-level configuration of the SRS resources according to the UE short-period SRS resource reconfiguration list so as to fulfill the aim of meeting the actual requirements of each UE on the SRS resources and ensure that the functions of each UE have the optimal performance.

Referring to table 1, the functional requirements of the UE for SRS resources are mainly:

11) for the UE of VoLTE, when the SRS resource is turned on in Discontinuous Reception (DRX), the measurement value on the measurement bandwidth of all SRS resources is obtained as much as possible, and the configuration cycle of the SRS resource is less than or equal to 40ms, so as to meet the requirement of VoLTE.

12) For BF UE, SRS resources with a period less than or equal to 20ms need to be configured to ensure the performance of BF function.

13) For the UE of MM, SRS resources with a period less than or equal to 20ms need to be configured to ensure the performance of MM.

14) For CoMP UEs, SRS resources with a period less than or equal to 40ms need to be configured to ensure the performance of CoMP functions.

TABLE 1

And S102, according to the residual situation of the short-period SRS resources, carrying out short-period SRS resource configuration on the UE needing to be reconfigured with the short-period SRS resources.

According to the remaining situation of the short-period SRS resource, the UE that needs to reconfigure the short-period SRS resource is configured with multiple implementation manners of the short-period SRS resource, and a description is given below with respect to one of the implementation manners that is preferred.

The method for configuring the short-period SRS resource for the UE needing to be reconfigured with the short-period SRS resource according to the residual situation of the short-period SRS resource comprises the following steps:

21) judging whether the residual short-period SRS resources exist or not;

22) if the residual short-period SRS resources exist currently, releasing the long-period SRS resources of the UE needing to be reconfigured with the short-period SRS resources, and allocating the residual short-period SRS resources to the UE needing to be reconfigured with the short-period SRS resources;

23) if the residual short-period SRS resources do not exist at present, inquiring whether the short-period SRS resources which are distributed to the UE which does not need to be reconfigured are existed at present;

24) if the short-period SRS resource is allocated to the UE which does not need to be reconfigured, releasing the short-period SRS resource of the UE which does not need to be reconfigured so as to allocate the released short-period SRS resource to the UE which needs to be reconfigured;

wherein the long period is an SRS configuration period greater than each service requirement of the UE.

It will be understood by those skilled in the art that all or part of the steps in the method according to the above embodiments may be implemented by a program, which may be stored in a computer-readable storage medium, and includes S101 to S102 when the program is executed. The storage medium may be ROM/RAM, magnetic disk, optical disk, etc.

In the embodiment of the invention, the user terminal UE needing to be reconfigured with the short-period SRS resource is firstly determined, and then the short-period SRS resource configuration is carried out on the UE needing to be reconfigured with the short-period SRS resource according to the remaining condition of the short-period SRS resource. Therefore, the short-period SRS resources can be distributed to users needing the short-period SRS resources more, and the problems that the SRS resources actually needed by each UE cannot be ensured under the condition that the short-period SRS resources are limited, and the SRS resources cannot meet the requirements of related functions on the period of the SRS resources or the time domain position of subframe offset relative to the uplink scheduling request can be solved.

Possibly, under the condition that the short-period SRS resource is limited, the base station arranges SRS resources according to the requirements of services (or called functions) currently made by each UE, for example, arranges SRS resources according to the service requirements of services such as VoLTE, CoMP, BF, MM, and the like of each UE, obtains the priority of the service requirements of the SRS resources corresponding to each UE, and flexibly adjusts the UE-level configuration of the SRS, so as to fulfill the purpose of meeting the actual requirements of each UE on the SRS resources, and ensure that the functions of each UE have optimal performance. Therefore, the configuration method can give more intelligent service to both cell-level requirements and user-level requirements, can ensure the functions of VoLTE, BF, MM, CoMP and the like of the UE by the base station, and can greatly improve the performance of the system.

Fig. 2 is a flowchart of another SRS resource configuration method according to an embodiment of the present invention, and referring to fig. 2, the SRS resource configuration method includes:

s201, when the UE is initially accessed, the base station allocates initial SRS resources to the UE in a first-come-first-obtained mode.

Fig. 3 is a schematic diagram of time domain initialization of a cell SRS resource provided in an embodiment of the present invention, as shown in fig. 3, the SRS resource is divided into 20ms, 40ms, and 80ms in the time domain, the number of time domain resources in each configuration period is 1, 2, and 16, respectively, and the SRS resource is actually configurable. The SRS resource configuration period of the UE may be configured to be 1 of the three periods.

When the UE initially accesses, the SRS resources are allocated in a first-come first-get mode and a short period to a long period mode. For example, when the configuration periods of the SRS resources are respectively configured to 20ms, 40ms and 80ms, that is, initial SRS resources are allocated to the UE in the order of 20ms- >40ms- >80ms, and if there is no idle SRS resource, the SRS resource is not initially allocated to the UE.

According to the service (or called as function) performed by the user terminal, the number of times of scheduling, the Modulation and Coding Scheme (MCS), the Buffer Status Report (BSR), the signal quality and other conditions, a UE list which most needs the short-period SRS resource is selected, the system periodically queries the UE list, and reallocates the short-period SRS resource to the UE in the UE list, so that the performance of the functions of the system, such as VoLTE, BF, MM, CoMP, and the like, is optimal.

S202, counting the UE needing to be reconfigured with the short-period SRS resource according to the priority of the UE to be reconfigured with the short-period SRS resource to obtain a UE short-period SRS resource reconfiguration list, wherein the UE in the UE short-period SRS resource reconfiguration list is sorted according to the priority of the reconfigured short-period SRS resource. The UE short-period SRS resource reconfiguration list may be referred to as a UE list for short. For example, the base station periodically counts a UE list (e.g., the UE list includes a first UE) that needs to be preferentially allocated with short periodic SRS resources.

In the embodiment of the invention, the short-period SRS resources can be distributed to users needing the short-period SRS resources more. That is, in order to dynamically adjust SRS resources, long-period and short-period grouping may be performed on SRS resources, a base station periodically screens out a user list requiring short-period SRS resources, and a system reallocates short-period SRS resources to users in the user list.

Optionally, determining the priority of the UE for reconfiguring the short-period SRS resource according to one or more of the service, the modulation and coding mode, the buffer status report BSR size, the scheduling times and the signal quality of the UE;

and sequencing the UE needing to be reconfigured with the short-period SRS resource according to the priority of the UE to be reconfigured with the short-period SRS resource to obtain a UE short-period SRS resource reconfiguration list.

For example, the service requirements of the SRS resource of each UE may be ordered according to the service of each UE and the predefined priority corresponding to the service of the UE; and if the UE with the same priority exists, comprehensively subdividing and sequencing the service requirements of the SRS resources of the UE with the same priority according to the modulation and coding mode, the Buffer Status Report (BSR) size, the scheduling times and/or the signal quality of each UE, and finally obtaining a short-period SRS resource reconfiguration list of the UE. The modulation and coding scheme may be MCS. And the UE with the priority greater than or equal to 1 in the UE short-period SRS resource reconfiguration list is the UE needing to reconfigure the short-period SRS resource.

Optionally, the requirements of each UE for SRS resources may be periodically counted, priorities may be ranked, and long-period SRS resources of a user terminal that needs short-period SRS resources are replaced with short-period SRS resources, where the replacement preferentially considers replacing the long-period SRS resources with idle short-period SRS resources, and if there is no idle short-period SRS resource, the short-period SRS resources of the UE with low priority that is not in the UE short-period SRS resource reconfiguration list are preempted.

It should be noted that the UE short period SRS resource reconfiguration list can be obtained in various ways, and the above description about the process of obtaining the UE short period SRS resource reconfiguration list is only one of them. It can be understood that, in the embodiment of the present invention, a manner of obtaining the UE short-period SRS resource reconfiguration list is not specifically limited.

S203, the base station judges whether the residual short-period SRS resources exist or not, and if the residual short-period SRS resources exist currently, S206 is executed; otherwise, S204 is executed.

And S204, if no residual short-period SRS resource exists currently, judging whether a second UE which is not in the UE short-period SRS resource reconfiguration list (namely the UE list needing to allocate the short-period SRS resource) and is configured with the short-period SRS resource exists. If there is a second UE configured with short-period SRS resources but not in the UE short-period SRS resource reconfiguration list, execute S205; otherwise, S207 is executed.

S205, if a second UE which does not configure short-period SRS resources in the UE short-period SRS resource reconfiguration list exists, releasing the short-period SRS resources of the second UE, and configuring long-period SRS resources for the second UE.

S206, if the remaining short-period SRS resources exist currently, short-period SRS resources are configured for a first UE in a UE short-period SRS resource reconfiguration list, and the first UE is determined from the UE short-period SRS resource reconfiguration list in sequence from high to low according to the priority of the reconfigured short-period SRS resources.

And S207, finishing the SRS resource reconfiguration.

Fig. 4 is a flowchart of another SRS resource configuration method according to an embodiment of the present invention, and referring to fig. 4, the SRS resource configuration method includes:

s401, setting an SRS resource dynamic adjustment timer; if the set dynamic SRS resource adjustment timer is over time, S402 is executed.

S402, obtaining a UE list of the short period of the reconfigured SRS, and sequentially obtaining UE i in the UE list. Namely, counting the UE needing to reconfigure the short-period SRS resource, forming a UE list, and sequentially taking out the UE recorded in the UE list.

In the embodiment of the invention, the UE list is a UE short-period SRS resource reconfiguration list. Wherein, there are one or more UEs that need to reconfigure the short periodic SRS resource in the UE list, and the UE list may be represented by UE i, and each UE in the UE list corresponds to an i value.

And S403, judging whether short-period SRS resources need to be reconfigured for the UEi. And if the short-period SRS resource needs to be reconfigured for the UE i, executing S404, otherwise, returning to S402, and taking the next UE in the UE list for processing.

S404, judging whether idle short-period SRS resources exist currently. If there is currently an idle short-period SRS resource, S407 is performed, otherwise, S405 is performed.

S405, determine whether there is a UE j configured with the short-period SRS resource but not in the UE short-period SRS resource reconfiguration list (i.e. UE list). If there is a UE j configured with the short periodic SRS resource but not in the UE short periodic SRS resource reconfiguration list, S406 is performed, otherwise, S409 is performed.

And S406, re-allocating the long period SRS resource to the UEj.

And if no idle long period SRS resource exists, directly releasing the short period SRS resource of the UEj.

And S407, reconfiguring the short-period SRS resource for the UEi.

S408, judging whether the UE reconfiguration frequency in the current period reaches the set maximum value or whether the CPU load of the signaling board exceeds a preset threshold value, if the UE reconfiguration frequency in the current period reaches the set maximum value or the CPU load of the signaling board exceeds the preset threshold value, executing S409, otherwise, executing S401, and taking the next UE in the UE list for processing.

In the embodiment of the invention, in order to avoid signaling storm and air interface congestion, the system sets the maximum number of the reconfigured UEs in each period.

S409, the dynamic adjustment processing procedure in this period is finished, and the time-out of the SRS resource dynamic adjustment processing timer (i.e., SRS reconfiguration timer) in the next period is waited.

In order to ensure that the overall performance of the system is better improved when the short-period SRS resource is limited, an embodiment of the present invention provides a device for configuring SRS resources, and referring to fig. 5, the device 500 includes: a determination module 501 and a resource adjustment module 502.

The determining module 501 is configured to determine a user equipment UE that needs to reconfigure a short-period SRS resource;

the resource adjusting module 502 is configured to perform short-period SRS resource allocation on the UE that needs to reconfigure the short-period SRS resource according to the remaining condition of the short-period SRS resource;

Optionally, the determining module 501 includes: and a statistic submodule.

The counting submodule is used for counting the UE needing to be reconfigured with the short-period SRS resource according to the priority of the UE to be reconfigured with the short-period SRS resource to obtain a UE short-period SRS resource reconfiguration list, and the UE in the UE short-period SRS resource reconfiguration list is sorted according to the priority of the reconfigured short-period SRS resource;

optionally, the statistics submodule includes: and a sorting unit.

The sequencing unit is used for determining the priority of the UE for reconfiguring the short-period SRS resource according to one or more of the service, the modulation and coding mode, the buffer status report BSR size, the scheduling times and the signal quality of the UE;

Optionally, the resource adjusting module 502 includes: the device comprises a first judgment submodule, a first configuration submodule, a second judgment submodule and a second configuration submodule.

The first judging submodule is used for judging whether the remaining short-period SRS resources exist or not;

the first configuration submodule is used for configuring short-period SRS resources for first UE in a UE short-period SRS resource reconfiguration list if the remaining short-period SRS resources exist currently, and the first UE is determined from the UE short-period SRS resource reconfiguration list in turn from high to low according to the priority of the reconfigured short-period SRS resources;

the second judging submodule is used for judging whether a second UE which is not in the UE short-period SRS resource reconfiguration list and is configured with short-period SRS resources exists or not if the remaining short-period SRS resources do not exist currently;

the second configuration submodule is configured to release the short-period SRS resource of the second UE and configure the long-period SRS resource for the second UE if the second UE configured with the short-period SRS resource is not in the UE short-period SRS resource reconfiguration list; wherein the long period is an SRS configuration period greater than each service requirement of the UE.

Alternatively, the resource adjusting module 502 includes: a third judgment submodule, a third configuration submodule, a fourth judgment submodule and a fourth configuration submodule.

The third judging submodule is used for judging whether the remaining short-period SRS resources exist or not;

the third configuration submodule is used for releasing the long-period SRS resource of the UE needing to be reconfigured with the short-period SRS resource if the remaining short-period SRS resource exists currently, and distributing the remaining short-period SRS resource to the UE needing to be reconfigured with the short-period SRS resource;

the fourth judgment sub-module is configured to, if there is no remaining short-period SRS resource, query whether there is a short-period SRS resource allocated to the UE that does not need to reconfigure the short-period SRS resource;

the fourth configuration submodule is used for releasing the short-period SRS resource of the UE which does not need to be reconfigured with the short-period SRS resource if the short-period SRS resource is allocated to the UE which does not need to be reconfigured with the short-period SRS resource currently, so that the released short-period SRS resource is allocated to the UE which needs to be reconfigured with the short-period SRS resource; wherein the long period is an SRS configuration period greater than each service requirement of the UE.

Optionally, on the basis of the structure shown in fig. 5, the configuration apparatus 500 further includes: the device comprises a timer module, a judging module, an executing module and an initial distribution module.

The timer module is used for setting an SRS resource dynamic adjustment timer; and if the set SRS resource dynamic adjustment timer is overtime, triggering the counting submodule to carry out counting on the UE needing to reconfigure the short-period SRS resource according to the priority of the UE reconfiguring the short-period SRS resource, and obtaining a UE short-period SRS resource reconfiguration list.

The judging module is used for judging whether the SRS resource reconfiguration frequency of the UE in the current period reaches a set maximum value or whether the CPU load of the signaling board exceeds a preset threshold;

the execution module is used for finishing the SRS resource reconfiguration if the SRS resource reconfiguration frequency of the UE in the current period reaches a set maximum value or the CPU load of a central processing unit of a signaling board exceeds a preset threshold; otherwise, triggering the statistic submodule to carry out statistics on the UE needing to reconfigure the short-period SRS resource according to the priority of the UE reconfiguring the short-period SRS resource, and obtaining a UE short-period SRS resource reconfiguration list.

The initial allocation module is used for allocating initial SRS resources for the UE which is initially accessed to the base station according to a first-come-first-obtained mode.

It should be noted that, the apparatus for configuring SRS resources according to the embodiment of the present invention may implement the steps of the method for configuring SRS resources as described above, which are not described herein again.

The embodiment of the invention also provides a base station which comprises the SRS resource configuration device.

In the embodiment of the present invention, the determining module 501 determines the user equipment UE that needs to reconfigure the short periodic SRS resource. Further, the resource adjusting module 502 performs short-period SRS resource allocation on the UE that needs to re-allocate the short-period SRS resource according to the remaining situation of the short-period SRS resource. In this way, the configuration device can distribute the short-period SRS resources to users needing the short-period SRS resources more, and can solve the problems that the SRS resources actually needed by each UE cannot be ensured under the condition that the short-period SRS resources are limited, and the SRS resources do not meet the requirements of related functions on the period of the SRS resources or the time domain position of the subframe offset relative to the uplink scheduling request.

Possibly, under the condition that the short-period SRS resource is limited, the SRS resource configuration device arranges SRS resources according to the requirements of services (or called functions) currently made by each UE, for example, arranges SRS resources according to the service requirements of services such as VoLTE, CoMP, BF, MM, and the like of each UE, obtains the priority of the service requirements of SRS resources corresponding to each UE, and flexibly adjusts the UE-level configuration of SRS, so as to fulfill the purpose of meeting the actual requirements of each UE on SRS resources and ensure that the functions of each UE have optimal performance.

Fig. 6 is a schematic structural diagram of a base station according to another embodiment of the present invention, and as shown in fig. 6, the base station 600 includes: a processor 601, a transceiver 602, a memory 603, a user interface 604, and a bus interface, wherein:

in this embodiment of the present invention, the base station 600 further includes: a computer program stored on the memory 603 and executable on the processor 601, the computer program when executed by the processor 601 performing the steps of: determining User Equipment (UE) needing to be reconfigured with short-period SRS resources; according to the remaining situation of the short-period SRS resource, the short-period SRS resource is configured for the UE needing to be reconfigured with the short-period SRS resource; wherein the short period is an SRS configuration period that meets each service requirement of the UE.

In fig. 6, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 601 and various circuits of memory represented by memory 603 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 602 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The user interface 604 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 601 is responsible for managing the bus architecture and general processing, and the memory 603 may store data used by the processor 601 in performing operations.

Optionally, the computer program when executed by the processor 601 may further implement the following steps:

counting the UE needing to be reconfigured with the short-period SRS resource according to the priority of the UE to be reconfigured with the short-period SRS resource to obtain a UE short-period SRS resource reconfiguration list, wherein the UE in the UE short-period SRS resource reconfiguration list is sorted according to the priority of the reconfigured short-period SRS resource; judging whether the residual short-period SRS resources exist or not; if the remaining short-period SRS resources exist currently, configuring short-period SRS resources for first UE in a UE short-period SRS resource reconfiguration list, wherein the first UE is determined from the UE short-period SRS resource reconfiguration list in sequence from high to low according to the priority of the reconfigured short-period SRS resources; if no residual short-period SRS resource exists currently, judging whether a second UE which is not in the UE short-period SRS resource reconfiguration list and is configured with the short-period SRS resource exists or not; if a second UE which is not in the UE short-period SRS resource reconfiguration list and is configured with short-period SRS resources exists, releasing the short-period SRS resources of the second UE, and configuring long-period SRS resources for the second UE; wherein the long period is an SRS configuration period greater than each service requirement of the UE.

determining the priority of the UE for reconfiguring the short-period SRS resource according to one or more of the service, the modulation and coding mode, the buffer status report BSR size, the scheduling times and the signal quality of the UE; and sequencing the UE needing to be reconfigured with the short-period SRS resource according to the priority of the UE to be reconfigured with the short-period SRS resource to obtain a UE short-period SRS resource reconfiguration list.

setting an SRS resource dynamic adjustment timer; and if the set SRS resource dynamic adjustment timer is overtime, counting the UE needing to be reconfigured with the short-period SRS resource according to the priority of the UE to be reconfigured with the short-period SRS resource, and obtaining a UE short-period SRS resource reconfiguration list.

judging whether the SRS resource reconfiguration times of the user terminal in the current period reach a set maximum value or whether the CPU load of a signaling board exceeds a preset threshold; if the SRS resource reconfiguration frequency of the user terminal in the current period reaches the set maximum value or the CPU load of a central processing unit of a signaling board exceeds a preset threshold, the SRS resource reconfiguration is finished; otherwise, counting the UE needing to be reconfigured with the short-period SRS resource according to the priority of the UE to be reconfigured with the short-period SRS resource, and obtaining a UE short-period SRS resource reconfiguration list.

judging whether the residual short-period SRS resources exist or not; if the residual short-period SRS resources exist currently, releasing the long-period SRS resources of the UE needing to be reconfigured with the short-period SRS resources, and allocating the residual short-period SRS resources to the UE needing to be reconfigured with the short-period SRS resources; if no residual short-period SRS resource exists currently, judging whether the short-period SRS resource is allocated to the UE which does not need to be reconfigured; if the short-period SRS resource is allocated to the UE which does not need to be reconfigured, releasing the short-period SRS resource of the UE which does not need to be reconfigured, and allocating the released short-period SRS resource to the UE which needs to be reconfigured; wherein the long period is an SRS configuration period greater than each service requirement of the UE.

and allocating initial SRS resources for the UE initially accessing the base station according to a first-come-first-obtained mode.

In the embodiment of the present invention, the processor 601 determines the user equipment UE that needs to reconfigure the short periodic SRS resource. Furthermore, the processor 601 performs short-period SRS resource allocation on the UE that needs to re-allocate the short-period SRS resource according to the remaining situation of the short-period SRS resource. The base station can distribute the short-period SRS resources to users needing the short-period SRS resources more, and can solve the problems that the SRS resources actually needed by each UE cannot be ensured under the condition that the short-period SRS resources are limited, and the SRS resources do not meet the requirements of related functions on the period of the SRS resources or the time domain position of subframe offset relative to an uplink scheduling request.

Possibly, under the condition that the short-period SRS resource is limited, the base station arranges SRS resources according to the requirements of services (or called functions) currently made by each UE, for example, arranges SRS resources according to the service requirements of services such as VoLTE, CoMP, BF, MM, and the like of each UE, obtains the priority of the service requirements of the SRS resources corresponding to each UE, and flexibly adjusts the UE-level configuration of the SRS, so as to fulfill the purpose of meeting the actual requirements of each UE on the SRS resources, and ensure that the functions of each UE have optimal performance.

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the method for configuring SRS resources described above.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present invention, it should be understood that the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, 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.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network-side device) to perform some steps of the transceiving method according to various embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for configuring Sounding Reference Signal (SRS) resources is characterized by comprising the following steps:

determining the priority of the UE for reconfiguring the short-period SRS resource according to one or more of the service, the modulation and coding mode, the buffer status report BSR size, the scheduling times and the signal quality of the user equipment UE;

sequencing the UE needing to reconfigure the short-period SRS resource according to the priority of the UE reconfiguring the short-period SRS resource to obtain a UE short-period SRS resource reconfiguration list;

according to the remaining situation of the short-period SRS resources, configuring the short-period SRS resources for first UE which is determined from the UE short-period SRS resource reconfiguration list in sequence from high to low according to the priority of the reconfigured short-period SRS resources;

2. The method according to claim 1, wherein the configuring, according to the remaining condition of the short-period SRS resources, the short-period SRS resources for a first UE sequentially determined from the UE short-period SRS resource reconfiguration list according to a priority of the reconfigured short-period SRS resources from high to low includes:

judging whether the residual short-period SRS resources exist or not;

and if the residual short-period SRS resources exist currently, configuring the short-period SRS resources for the first UE in the UE short-period SRS resource reconfiguration list.

3. The method according to claim 2, wherein the configuring, according to the remaining condition of the short-period SRS resources, the short-period SRS resources for the first UE sequentially determined from the UE short-period SRS resource reconfiguration list according to the priority of the reconfigured short-period SRS resources from high to low, further comprises:

if no residual short-period SRS resource exists currently, judging whether a second UE which is not in the UE short-period SRS resource reconfiguration list and is configured with the short-period SRS resource exists or not;

if a second UE which is not in the UE short-period SRS resource reconfiguration list and is configured with short-period SRS resources exists, releasing the short-period SRS resources of the second UE, and configuring long-period SRS resources for the second UE; the long period is an SRS configuration period which is larger than each service requirement of the UE;

and configuring the released short-period SRS resource for the first UE in the UE short-period SRS resource reconfiguration list.

4. The configuration method according to claim 1, wherein before the step of obtaining the UE short-period SRS resource reconfiguration list, the configuration method further comprises:

5. The method according to claim 3, wherein after the step of releasing the short-period SRS resource of the second UE and configuring the long-period SRS resource for the second UE, if there is a second UE which does not have the short-period SRS resource configured in the UE short-period SRS resource reconfiguration list, the method further comprises:

judging whether the SRS resource reconfiguration frequency of the UE in the current period reaches a set maximum value or whether the CPU load of a signaling board exceeds a preset threshold;

if the number of times of the SRS resource reconfiguration of the UE in the current period reaches the set maximum value or the CPU load of a central processing unit of a signaling board exceeds a preset threshold, the SRS resource reconfiguration is finished;

otherwise, counting the UE needing to be reconfigured with the short-period SRS resource according to the priority of the UE to be reconfigured with the short-period SRS resource, and obtaining a UE short-period SRS resource reconfiguration list.

6. The deployment method according to any one of claims 1 to 5, further comprising:

7. An apparatus for configuring Sounding Reference Signal (SRS) resources, comprising:

the determining module is used for determining the priority of the UE for reconfiguring the short-period SRS resource according to one or more of the service, the modulation and coding mode, the size of the buffer status report BSR, the scheduling times and the signal quality of the UE; sequencing the UE needing to reconfigure the short-period SRS resource according to the priority of the UE reconfiguring the short-period SRS resource to obtain a UE short-period SRS resource reconfiguration list;

the resource adjusting module is used for configuring the short-period SRS resources for the first UE which is determined from the UE short-period SRS resource reconfiguration list in sequence from high to low according to the priority of the reconfigured short-period SRS resources according to the residual condition of the short-period SRS resources;

8. The apparatus of claim 7, wherein the resource adjustment module comprises:

the first judgment submodule is used for judging whether the residual short-period SRS resources exist or not;

and the first configuration submodule is used for configuring the short-period SRS resource for the first UE in the UE short-period SRS resource reconfiguration list if the remaining short-period SRS resource exists currently.

9. The apparatus of claim 8, wherein the resource adjustment module further comprises:

a second determining submodule, configured to determine whether there is a second UE configured with short-period SRS resources without being in the UE short-period SRS resource reconfiguration list if there is no remaining short-period SRS resource;

a second configuration submodule, configured to release the short-period SRS resource of the second UE and configure the long-period SRS resource for the second UE, if there is a second UE that does not configure the short-period SRS resource in the UE short-period SRS resource reconfiguration list; and configuring the released short-period SRS resource for the first UE in the UE short-period SRS resource reconfiguration list.

10. A base station, characterized in that it comprises the SRS resource configuration device according to any claim 7 to 9.

11. A base station, comprising: memory, processor and computer program stored on the memory and executable on the processor, the processor implementing the steps in the method for configuring SRS resource according to any one of claims 1 to 6 when executing the program.

12. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for configuring SRS resources according to any one of claims 1 to 6.