CN113055139B

CN113055139B - SR resource allocation method, device and base station

Info

Publication number: CN113055139B
Application number: CN201911368856.3A
Authority: CN
Inventors: 冯儒; 李强
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2022-06-21
Anticipated expiration: 2039-12-26
Also published as: CN113055139A

Abstract

The embodiment of the invention discloses a method, a device and a base station for SR resource allocation, wherein the method comprises the following steps: determining whether multiple SR needs to be distributed or not according to the RB requirement of the terminal; if the multi-SR needs to be distributed, determining whether the terminal capability supports multi-SR configuration; and if the terminal capability is determined to support the multi-SR configuration, performing multi-SR resource allocation. Therefore, the invention realizes that the base station distributes multiple SR resources for the terminal, meets the requirements of different services on time delay, also meets the requirements of reducing time delay, improving peak speed, simultaneously considering the number of users and the like, and also improves user experience.

Description

SR resource allocation method, device and base station

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a base station for SR resource allocation.

Background

The SR (Scheduling Request) is used as one of UpLink UCI (UpLink Control Information) for the terminal to Request UpLink Scheduling resources to the base station. Compared with the Long Term Evolution (LTE), the application scenarios of the 5G NR (New Radio, New air interface) are more and more complex, the original LTE resource allocation method cannot meet the current requirements,

disclosure of Invention

The invention aims to provide an SR resource allocation method, an SR resource allocation device and a base station, so as to meet SR resource allocation requirements in an NR application scene.

In a first aspect, an embodiment of the present invention provides an SR resource allocation method, including:

determining whether multiple SR need to be distributed according to the RB requirement of the terminal radio bearer;

if the multi-SR needs to be distributed, determining whether the terminal capability supports multi-SR configuration;

and if the terminal capability is determined to support the multi-SR configuration, performing multi-SR resource allocation.

Optionally, the terminal RB requirement includes one or more RB requirements;

the performing multi-SR resource allocation includes:

aiming at any RB requirement, determining an SR type corresponding to the RB requirement and a corresponding first resource pool;

and acquiring idle resources from the first resource pool and distributing the idle resources to the corresponding terminal.

Optionally, the method further comprises:

if the free resources in the first resource pool do not meet the allocation requirements, but the free resources in a second resource pool corresponding to another SR type meet the allocation requirements, acquiring the free resources from the second resource pool and allocating the free resources to the corresponding terminal;

wherein the priority of the other SR type is greater than the priority of the SR type needing to be allocated currently, or the priority of the other SR type is less than the priority of the SR type needing to be allocated currently.

Optionally, the method further comprises:

and if the multi-SR does not need to be distributed, or the terminal capability does not support multi-SR configuration, or the terminal capability does not exist in the current process, distributing single SR resources.

Optionally, the performing single SR resource allocation includes:

determining a default SR type for single SR resource allocation; wherein all RB requirements correspond to the default SR type;

determining a reference position for allocating single SR resources from a resource pool corresponding to the default SR type, wherein the reference position is a Sounding Reference Signal (SRS) time domain resource position;

after the reference position, acquiring an idle resource position which does not conflict with a Channel State Information (CSI) resource position and an allocated SR resource position;

and allocating the idle resources corresponding to the idle resource positions to corresponding terminals.

Optionally, the acquiring an idle resource location that does not conflict with the CSI resource location and the allocated SR resource location includes:

if the SRS period is larger than or equal to the SR period, traversing in a specified period range, and acquiring an idle resource position which does not conflict with the CSI resource position and the allocated SR resource position; the specified period range is determined according to an SRS time domain offset position and the SR period, and the SRS time domain offset position is based on a first allocated SRS resource time domain resource position;

if the SRS period is smaller than the SR period, traversing from the designated position, and acquiring an idle resource position which meets the resource allocation requirement and does not conflict with the CSI resource position and the allocated SR resource position; wherein the specified position is the SRS time domain offset position plus 1.

Optionally, the method further comprises:

performing SR resource initialization on each special BWP of the serving cell according to a third set rule by taking the bandwidth part BWP as a unit;

wherein the third setting rule includes: defining an SR resource linked list of N SR types, and initializing each type of SR into time domain resource chains divided according to time slots by taking available uplink time slots in a corresponding period as hash indexes, wherein reusable orthogonal codes OCC and cyclic shift CS resources in a single physical resource block PRB are stored in each time domain resource chain; initializing according to the setting sequence of N SR types, occupying from the bottom of BWP bandwidth, and reusing different types of SRs in a single PRB; if one type of SR is not full within one PRB then the next type of SR resource is continuously occupied.

Optionally, the SR resource initialization for each dedicated BWP of the serving cell according to a set rule includes:

determining N SR types for resource initialization for each dedicated BWP;

determining respective periods corresponding to the SR types;

aiming at each SR type, calculating the number of available uplink time slots in a period corresponding to the SR type, the number of resources needing to be allocated on a single time slot, the number of reusable resources in a single physical resource block PRB and the total number of resources needing to be initialized;

calculating the number of resources in PRBs (physical resource blocks) which need to be multiplexed with other SRs, the number of PRBs which need to be occupied, a starting PRB and a stopping PRB;

initializing each resource node according to the sequence of the positions of the time slot, the OCC, the CS and the starting resource block RB to obtain an SR resource linked list;

and moving the SR resource chain table, and initializing according to the time slot to obtain a time domain resource chain.

In a second aspect, an embodiment of the present invention provides an SR resource allocation apparatus, including:

the first determining module is used for determining whether the multi-SR needs to be allocated according to the RB requirement of the terminal radio bearer;

a second determining module, configured to determine whether the terminal capability supports multi-SR configuration if it is determined that multi-SR allocation is required;

and the multi-SR resource allocation module is used for allocating the multi-SR resources if the terminal capability is determined to support the multi-SR configuration.

Optionally, the terminal RB requirement includes one or more RB requirements;

the first resource allocation module comprises:

the first determining submodule is used for determining an SR type corresponding to any RB requirement and a corresponding first resource pool;

and the first allocating submodule is used for acquiring the idle resources from the first resource pool and allocating the idle resources to the corresponding terminal.

Optionally, the method further comprises:

a second allocating submodule, configured to, if an idle resource in the first resource pool does not meet an allocation requirement, but an idle resource in a second resource pool corresponding to another SR type meets the allocation requirement, obtain the idle resource from the second resource pool and allocate the idle resource to a corresponding terminal;

Optionally, the method further comprises:

and the single SR resource allocation module is used for allocating single SR resources if the multi-SR does not need to be allocated, or the terminal capability does not support multi-SR configuration, or the terminal capability does not exist in the current process.

Optionally, the single SR resource allocation module includes:

a second determining submodule, configured to determine a default SR type for single SR resource allocation; wherein all RB requirements correspond to the default SR type;

a third determining submodule, configured to determine a reference position used for single SR resource allocation from a resource pool corresponding to the default SR type, where the reference position is a sounding reference signal SRs resource position;

an obtaining submodule, configured to obtain, after the reference position, an idle resource position that does not conflict with a channel state information CSI resource position and an allocated SR resource position;

and the third allocating sub-module is used for allocating the idle resources corresponding to the idle resource positions to the corresponding terminals.

Optionally, the obtaining sub-module includes:

the first acquisition unit is used for traversing in a specified period range if the SRS period is greater than or equal to the SR period, and acquiring an idle resource position which does not conflict with the CSI resource position and the allocated SR resource position; the specified period range is determined according to an SRS time domain offset position and the SR period, wherein the SRS time domain offset position takes the first allocated SRS resource time domain resource position as a reference;

the second acquisition unit is used for traversing from the specified position if the SRS period is less than the SR period, and acquiring an idle resource position which meets the resource allocation requirement and does not conflict with the CSI resource position and the allocated SR resource position; wherein the specified position is the SRS time domain offset position plus 1.

Optionally, the method further comprises:

the initialization module is used for performing SR resource initialization on each special BWP of the serving cell according to a set rule by taking the bandwidth part BWP as a unit;

wherein the setting rule comprises: defining an SR resource linked list of N SR types, and initializing each type of SR into time domain resource chains divided according to time slots by taking available uplink time slots in a corresponding period as hash indexes, wherein reusable orthogonal codes OCC and cyclic shift CS resources in a single physical resource block PRB are stored in each time domain resource chain; initializing according to the setting sequence of N SR types, occupying from the bottom of BWP bandwidth, and reusing different types of SRs in a single PRB; if one type of SR is not full within one PRB then the next type of SR resource is continuously occupied.

Optionally, the initialization module includes:

a fourth determining sub-module for determining, for each dedicated BWP, N SR types for resource initialization;

a fifth determining submodule, configured to determine respective periods corresponding to the various SR types;

the first calculation submodule is used for calculating the number of available uplink time slots in a period, the number of resources needing to be allocated on a single time slot, the number of reusable resources in a single physical resource block PRB and the total number of resources needing to be initialized, which correspond to each SR type;

the second calculation submodule is used for calculating the number of resources in the PRB which need to be multiplexed with other SRs, the number of the PRBs which need to be occupied, the starting PRB and the ending PRB;

the first initialization submodule is used for initializing each resource node according to the sequence of the positions of the time slot, the OCC, the CS and the starting resource block RB to obtain an SR resource linked list;

and the second initialization submodule is used for moving the SR resource chain table and initializing according to the time slot to obtain the time domain resource chain.

In a third aspect, an embodiment of the present invention provides a base station, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the SR resource allocation method according to the first aspect when executing the program.

In a fourth aspect, an embodiment of the present invention provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the SR resource allocation method according to the first aspect.

According to the SR resource allocation method, the device and the base station provided by the embodiment of the invention, whether multiple SRs need to be allocated or not is determined according to the RB requirement of the terminal; if the multi-SR needs to be distributed, determining whether the terminal capability supports multi-SR configuration; and if the terminal capability is determined to support multi-SR configuration, multi-SR resource allocation is carried out, so that the base station allocates multi-SR resources for the terminal, the requirements of different services on time delay are met, the requirements of reducing time delay, improving peak speed, considering the number of users and the like are met, and the user experience is also improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 is a flowchart of a SR resource allocation method in an embodiment of the invention;

FIG. 2 is a schematic diagram of a time domain resource chain during SR resource initialization according to an embodiment of the present invention;

FIG. 3 is an SR frequency domain occupation map during SR resource initialization according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an SR resource allocation apparatus according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a base station according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The SR is one of uplink UCI, and is used for the terminal to request uplink scheduling resources to the base station. Compared with LTE, NR has more and more complex application scenarios, supports multi-subframe configuration, and introduces multiple BWP (Bandwidth Part) concept, so SR resource configuration of 5G NR also needs to be flexible, and can also perform differential configuration according to BWP, which needs to consider service requirement and latency and other factors, and needs to avoid collision with other UCI and SRs (Sounding reference signal) resources, at this time, the original LTE resource allocation method cannot meet the current requirement,

in the prior art, each resource of a PUCCH (Physical Uplink Control Channel) and an SRS (sounding reference signal) are configured to be wholly planned and reserved according to an operator, time domains are preferentially and sequentially allocated during allocation, and the whole system is divided into two parts, namely resource initialization and resource allocation. When a cell is established, various resources are initialized according to various resource periods, the number of available resources in the period is calculated, each resource serves as a resource node to store necessary information and an occupation state of the resource, and Hash storage is adopted. And each hash node is used as a time domain resource index, the time domain resource index corresponds to a time domain resource chain, and the reusable frequency domain and code domain resources on the current time domain position are stored. In the allocation, the SRS is used as an anchor point, and resources such as the SRS, a Channel Quality Indicator (CQI), and an SR are sequentially allocated.

However, in the prior art, multi-SR resource allocation under multi-scenario and multi-service requirements is not considered, and although the time delay can be reduced by reducing the SR period, the cell user capacity is sacrificed, and differential configuration cannot be performed at the same time. The resource allocation of the 5G NR is more flexible, the application scenes are more, all resources are changed, the service requirements are more flexible, and the resource allocation method in the prior art cannot meet the flexible resource allocation and service requirements.

For the above problem, in the 5G NR, each resource allocation principle is continued to avoid collision with GAP (measurement GAP), and each resource should be allocated with SRS, CQI, and SR resources in order according to a time domain priority centralized allocation principle and with SRS as an anchor point. When a cell is activated, the method initializes according to time domain and frequency domain, initializes each Resource into a Resource chain table according to the period of each Resource, the number of occupied PRB (Physical Resource Block), PUCCH format and the like according to a certain sequence for reservation, sets whether each Resource node is occupied or not, and allocates occupation according to a certain rule when a subsequent user accesses. The invention provides a resource allocation method, a device and a base station based on the method, the device and the base station, so as to meet the resource allocation requirement in an NR application scene. The following description will be made by way of specific examples.

As shown in fig. 1, which is a flowchart of an SR resource allocation method in the embodiment of the present invention, the method may be used in a base station, and specifically includes the following steps:

s110: and determining whether multiple SR needs to be allocated or not according to the RB (Radio Bearers) requirement of the terminal. Wherein different RBs may represent different services.

Specifically, the base station may calculate the number of SR type resources that need to be allocated in the current process according to whether the bearer needs to be established and the type of the bearer in the current process.

Such as: if the terminal only needs to establish the SRB1 in the current process, one SR can be allocated at the moment according to the SR type associated with the SRB 1; possibly, a service needs to be performed in the subsequent process, and one SRB2 and multiple DRBs (Data Radio Bearers) are established, where different SRs are associated among the RBs, and multiple SRs need to be allocated.

In addition, the base station may provide three configurable SR types according to the service type: an SR (i.e., SR _ SRB) for SRB (signaling Radio Bearers) service, an SR (i.e., SR _ VONR) for voice service, and an SR (i.e., SR _ OtherDRB) for other services. Wherein, the priority of SR _ VONR is larger than that of SR _ SRB, and the priority of SR _ SRB is larger than that of SR _ OtherDRB.

S120: if it is determined that the multi-SR needs to be allocated, it is determined whether the terminal capability supports the multi-SR configuration.

Specifically, the terminal capability of the terminal to be allocated may or may not support multiple SR configurations, and the terminal capability may not exist in the current process.

S130: and if the terminal capability is determined to support various SR configurations, performing multi-SR resource allocation.

Specifically, the base station determines whether multiple SRs need to be allocated according to the terminal RB requirement, and the terminal capability also supports multiple SR configurations, so that multiple SR resource allocation can be performed at this time.

As can be seen from the above embodiments, it is determined whether multiple SRs need to be allocated according to the terminal RB requirement, and if it is determined that multiple SRs need to be allocated, it is determined whether the terminal capability supports multiple SR configuration; if the terminal capability supports various SR configurations, multi-SR resource allocation is carried out, so that the base station allocates multi-SR resources for the terminal, the requirements of different services on time delay are met, the requirements of time delay reduction, peak speed improvement, user number simultaneous consideration and the like are met, and user experience is improved.

Further, based on the above method, the terminal RB requirement in S110 includes one or more RB requirements, and the performing S130 for multi-SR resource allocation may include, but is not limited to, the following implementation manners:

(1-1) determining an SR type corresponding to any RB requirement and a corresponding first resource pool for the RB requirement;

and (1-2) acquiring idle resources from the first resource pool and distributing the idle resources to corresponding terminals.

Such as: the terminal RB requirement comprises an SRB service requirement and a voice service requirement, and when multiple SR resource allocation is carried out:

for SRB service requirements, it is necessary to determine an SR type (e.g., SR _ SRB) corresponding to the SRB service requirements and a resource pool corresponding to SR _ SRB; acquiring idle resources from a resource pool corresponding to the SR _ SRB and distributing the idle resources to corresponding terminals;

for the voice service requirement, it is also necessary to determine the SR type (e.g., SR _ VONR) corresponding thereto and the resource pool corresponding to SR _ VONR; and acquiring idle resources from the resource pool corresponding to the SR _ VONR and distributing the idle resources to the corresponding terminal.

It can be seen from the above embodiments that different SR resources are allocated according to RB requirements, thereby implementing a multi-SR resource allocation function, further satisfying requirements of reducing time delay, increasing peak speed while considering the number of users, and the like, and also improving reliability of multi-SR resource allocation.

Further, based on the above method, when (1-2) is executed, a situation may occur in which the free resources in the first resource pool do not satisfy the allocation requirement, and the following solutions may be adopted for this situation, but are not limited to this situation:

(2-1) if the free resources in the first resource pool do not meet the allocation requirement, but the free resources in a second resource pool corresponding to another SR type meet the allocation requirement, acquiring the free resources from the second resource pool and allocating the free resources to a corresponding terminal;

Such as: the base station may provide three configurable SR types according to the service type: an SR for SRB service (i.e., SR _ SRB), an SR for voice service (i.e., SR _ VONR), and an SR for other service (i.e., SR _ OtherDRB). Wherein, the priority of SR _ VONR is larger than that of SR _ SRB, and the priority of SR _ SRB is larger than that of SR _ OtherDRB.

When the free resource in the resource pool corresponding to the SR type (e.g., SR _ SRB) does not satisfy the allocation requirement but the free resource in the resource pool corresponding to the SR _ VONR satisfies the allocation requirement for the SRB service requirement, the free resource may be obtained from the resource pool corresponding to the SR _ VONR and allocated to the corresponding terminal; similarly, if the idle resource in the resource pool corresponding to SR _ OtherDRB meets the allocation requirement, the idle resource may be obtained from the resource pool corresponding to SR _ OtherDRB and allocated to the corresponding terminal.

When another SR type is selected, the SR type with the higher priority may be generally selected first, and if the SR with the higher priority does not meet the allocation requirement, the SR type with the lower priority is selected to ensure that the SR resource is successfully allocated to the terminal as much as possible.

As can be seen from the foregoing embodiments, if the free resource in the first resource pool does not satisfy the allocation requirement, but the free resource in the second resource pool corresponding to another SR type satisfies the allocation requirement, the free resource is obtained from the second resource pool and allocated to the corresponding terminal, thereby implementing a multi-SR fallback function, which not only satisfies the requirements of different services for SRs, but also does not affect the cell user capacity, and further improves the SR resource allocation accuracy.

Further, based on the method, after S120, the method may further include:

and (3-1) if the multi-SR does not need to be allocated, or the terminal capability does not support multi-SR configuration, or the terminal capability does not exist in the current process, performing single-SR resource allocation.

Specifically, the triggering conditions for single SR resource allocation may include, but are not limited to, the following:

the terminal does not need to allocate multiple SRs;

the terminal capability does not support multi-SR configuration;

there is no terminal capability in the current process, for example; in the current process, the base station does not receive the terminal capability reported by the terminal, so that the default type of SR is distributed if the SR needs to be distributed before, and then the SR is distributed according to the actual situation by referring to the terminal capability if the SR needs to be distributed subsequently.

The default SR type may be an SR type preset by the base station according to an actual situation. Such as: the default SR type may be an SR for SRB service (i.e., SR _ SRB), or an SR for voice service (i.e., SR _ VONR), or an SR for other service (i.e., SR _ OtherDRB).

Because the SR belongs to the special resource of the terminal, the base station needs to refer to the terminal capability during the allocation, if the current process has no terminal capability, for example, when the connection is established, the SR resource of the SRB service type is allocated by default, the subsequent SRB is ensured to have the SR special resource for the terminal to apply for the UL _ SCH resource, and when the terminal capability exists subsequently, the terminal capability is referred to for reallocation, and the allocation is carried out according to the special BWP during the allocation. The allocation principle refers to the SRS, preferentially allocates resources with time domain positions close to the SRS, needs to consider whether the time slots can be the same as those of the CSI and needs to avoid time domain conflicts with the currently allocated SR, and further needs to judge whether the GAP is currently allocated or not, and needs to avoid conflicts with the GAP if the time slots are allocated.

As can be seen from the above embodiments, if it is determined that multiple SRs need not be allocated, or it is determined that the terminal capability does not support multiple SR configurations, or there is no terminal capability in the current process, single SR resource allocation may be performed, thereby ensuring that the terminal successfully allocates SR resources, and improving the reliability of SR resource allocation.

Further, based on the above method, when performing the single SR resource allocation in (3-1), the following implementation manners may be included, but not limited to:

(4-1) determining a default SR type for single SR resource allocation; wherein all RB requirements correspond to the default SR type.

Such as: the default SR type is an SR for SRB service (i.e., SR _ SRB).

(4-2) determining a reference position for single SR resource allocation from a resource pool corresponding to the default SR type, wherein the reference position is an SRS time domain resource position.

Specifically, when a single SR resource is allocated, the SRs resource position needs to be referred to, and a time domain idle position is searched backward based on the SRs resource position, and whether the time domain idle position conflicts with a CQI resource needs to be determined when the time domain idle position is searched, and if the terminal capability supports the CQI resource and the CQI resource, the determination is not needed. Due to the limitation of the current protocol, if two SRs report simultaneously, the terminal selects one SR, and even though different types of SR frequency domains are staggered during cell initialization, the terminal still needs to avoid time domain collision with the allocated SR as much as possible.

(4-3) acquiring an idle resource location that does not conflict with the CSI resource location and the allocated SR resource location after the reference location.

And (4-4) allocating the idle resources corresponding to the idle resource positions to corresponding terminals.

It can be seen from the above embodiments that, an SRs resource location for single SR resource allocation is determined from a resource pool corresponding to a default SR type, and after the SRs resource location, an idle resource location that does not conflict with a CSI resource location and an allocated SR resource location is obtained, thereby implementing a function of single SR resource allocation and also solving a problem of time domain conflicts between allocated resources and resources such as CSI and SRs.

Further, based on the above method, when the obtaining (4-2) of the idle resource location that does not conflict with the CSI resource location and the allocated SR resource location is performed, the method may include:

(5-1) if the SRS period is more than or equal to the SR period, traversing within a specified period range, and acquiring an idle resource position which does not conflict with the CSI resource position and the allocated SR resource position; wherein the specified period range is determined according to an SRS time domain offset position (SrsOffset) and the SR period, and the SRS time domain offset position (SrsOffset) is based on a first allocated SRS resource time domain resource position.

Specifically, the specified Period range may be Mod (srseffset, SR _ Period) +1 to SR Period. Wherein, Mod represents the modulo operation.

In addition, when the SRS is used as the anchor point, the relationship between the SRS period and the SR period needs to be considered, and srseoffset is based on the time domain position of the first allocated SRS resource. If the SRS Period is more than or equal to the SR Period, traversing from Mod (SrsOffset, SR _ Period) +1 to the SR Period, finding out a Slot with idle resources, wherein the Slot does not conflict with a CSI position and an allocated SR, and if a GAP is allocated in the current process, carrying out conflict judgment on the Slot with the GAP; if the SRS period is smaller than the SR period, the SR period needs to be segmented (1 SR period contains a plurality of SrsOffset positions), the SR period is traversed from SrsOffset +1, an idle position Slot is found, the position is not in conflict with the CSI position and the distributed SR, and then idle resources on the same position Slot with respect to SrsOffset offset in other segmentation ranges are compared, and a position with the most idle resources is found to be distributed. If there is no free in all segments, then the next time domain location is traversed on. The allocation fails if there are no available resources on all slots.

(5-2) if the SRS period is less than the SR period, traversing from the specified position, and acquiring an idle resource position which meets the resource allocation requirement and is not in conflict with the CSI resource position and the allocated SR resource position; wherein the specified position is the SRS time domain offset position plus 1.

Further, based on the method, the method further comprises:

(6-1) performing SR resource initialization for each dedicated BWP of the serving cell according to a third set rule in units of the bandwidth part BWP;

wherein the third setting rule includes: defining an SR resource chain table of N SR types, initializing each type of SR into a time domain resource chain divided according to time slots by taking an available uplink time slot in a corresponding period as a hash index, and storing reusable OCC (Orthogonal Code) and CS (Cyclic shift) resources in a single physical resource block PRB on each time domain resource chain; the time domain resource chain is shown in fig. 2, and the numbers in fig. 2 represent the resource node numbers; moreover, the method is initialized according to the setting sequence of the N SR types, the method occupies the BWP bandwidth from the bottom, and the SRs of different types can be reused in a single PRB; if one type of SR is not occupied within one PRB and then continues to occupy the next type of SR resource, the frequency domain distribution is as shown in fig. 3.

In fig. 3, BWP1 is taken as an example, and initialization is performed according to the sequence of SR _ SRB, SR _ VONR, and SR _ OtherDRB, and occupation is started from the bottom of BWP1 bandwidth, different types of SRs can be reused in a single PRB, and if one type of SR in one PRB is not full, then the next type of SR resource is continuously occupied.

The above-mentioned N SR types may be at least two SR types. Such as: the 3 SR types are an SR for SRB service (i.e., SR _ SRB), an SR for voice service (i.e., SR _ VONR), and an SR for other service (i.e., SR _ OtherDRB), respectively. Wherein SR _ SRB is the default type. The initialization sequence is SR _ SRB, SR _ VONR, and SR _ OtherDRB.

Further, based on the above method, when performing (6-1), the method may include:

(7-1) determining N SR types for resource initialization for each dedicated BWP;

(7-2) determining a period corresponding to each of the SR types;

(7-3) calculating the number of available uplink time slots in a period, the number of resources needing to be allocated on a single time slot, the number of reusable resources in a single Physical Resource Block (PRB) and the total number of resources needing to be initialized, which correspond to each SR type;

(7-4) calculating the number of resources in the PRBs which need to be multiplexed with other SRs, the number of PRBs which need to be occupied, a starting PRB and a stopping PRB;

(7-5) initializing each resource node according to the sequence of the positions of the time slot, the OCC, the CS and the starting resource block RB to obtain an SR resource linked list;

and (7-6) moving the SR resource chain table, and initializing the SR resource chain table into a time domain resource chain according to the time slot.

As can be seen from the foregoing embodiments, by performing SR resource initialization on each dedicated BWP of the serving cell according to the third set rule in units of the bandwidth part BWP, SR resource occupancy allocation from the bottom of the BWP bandwidth is achieved, resource fragmentation is reduced, more bandwidth is provided for PUSCH (Physical Uplink Shared CHannel), user peak speed is improved, and resource initialization, resource allocation and collision with other resources of multiple SRs are solved.

Fig. 4 is a flowchart illustrating an SR resource allocation apparatus according to this embodiment, where the SR resource allocation apparatus may be used in a base station; as shown in fig. 4, the SR resource allocating apparatus may include:

a first determining module 41, configured to determine whether multiple SRs need to be allocated according to a terminal RB requirement;

a second determining module 42, configured to determine whether the terminal capability supports multiple SR configuration if it is determined that multiple SRs need to be allocated;

a multiple SR resource allocation module 43, configured to perform multiple SR resource allocation if it is determined that the terminal capability supports multiple SR configuration.

Further, on the basis of the above device embodiment, the terminal RB requirement includes one or more RB requirements; the multi SR resource allocation module 43 includes:

Further, on the basis of the above device embodiment, the device further comprises:

Further, on the basis of the above device embodiment, the method further includes:

Further, on the basis of the above apparatus embodiment, the single SR resource allocation module includes:

Further, on the basis of the above apparatus embodiment, the obtaining sub-module includes:

wherein the setting rule comprises: defining an SR resource linked list of N SR types, and initializing each type of SR into time domain resource chains divided according to time slots by taking available uplink time slots in a corresponding period as hash indexes, wherein reusable orthogonal codes OCC and cyclic shift CS resources in a single physical resource block PRB are stored in each time domain resource chain; initializing according to a set sequence of N SR types, occupying from the bottom of BWP bandwidth, and reusing different types of SRs in a single PRB; if one type of SR is not full within one PRB then the next type of SR resource is continuously occupied.

Further, on the basis of the above apparatus embodiment, the initialization module includes:

the second calculation submodule is used for calculating the number of resources in PRBs (physical resource blocks) which need to be multiplexed with other SRs, the number of PRBs which need to be occupied, a starting PRB and a stopping PRB;

The resource allocation apparatus described in this embodiment may be configured to perform the method embodiments, and the principle and the technical effect are similar, which are not described herein again.

Fig. 5 shows a schematic physical structure diagram of a base station, and as shown in fig. 5, the base station may include: a processor (processor)501, a communication Interface (Communications Interface)502, a memory (memory)503, and a communication bus 504, wherein the processor 501, the communication Interface 502, and the memory 503 are configured to communicate with each other via the communication bus 504. The processor 501 may call logic instructions in the memory 503 to perform the following method:

determining whether multiple SR needs to be distributed or not according to the RB requirement of the terminal;

In addition, the logic instructions in the memory 503 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

Further, embodiments of the present invention disclose a computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions, which when executed by a computer, the computer is capable of performing the methods provided by the above-mentioned method embodiments, for example, comprising:

In another aspect, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented to perform the transmission method provided in the foregoing embodiments when executed by a processor, and for example, the method includes:

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. An SR resource allocation method, comprising:

determining whether a multi-Scheduling Request (SR) needs to be allocated according to the Radio Bearer (RB) requirement of a terminal;

if the terminal capability is determined to support multi-SR configuration, multi-SR resource allocation is carried out;

further comprising: performing SR resource initialization on each special BWP of the serving cell according to a third set rule by taking the bandwidth part BWP as a unit;

2. The SR resource allocation method according to claim 1, wherein said terminal RB requirements comprise one or more RB requirements;

the performing multi-SR resource allocation includes:

3. The SR resource allocation method according to claim 2, further comprising:

4. The SR resource allocation method according to claim 1, further comprising:

5. The SR resource allocation method according to claim 4, wherein said performing single SR resource allocation comprises:

determining a reference position for single SR resource allocation from a resource pool corresponding to the default SR type, wherein the reference position is a Sounding Reference Signal (SRS) time domain resource position;

6. The SR resource allocation method according to claim 5, wherein said obtaining an idle resource location that does not conflict with both CSI resource location and allocated SR resource location comprises:

if the SRS period is larger than or equal to the SR period, traversing in a specified period range, and acquiring an idle resource position which does not conflict with the CSI resource position and the allocated SR resource position; the specified period range is determined according to an SRS time domain offset position and the SR period, wherein the SRS time domain offset position takes the first allocated SRS resource time domain resource position as a reference;

7. The SR resource allocation method of claim 1 wherein SR resource initialization for each dedicated BWP of the serving cell according to the set rule comprises:

determining N SR types for resource initialization for each dedicated BWP;

determining respective periods corresponding to the SR types;

8. An SR resource allocation apparatus, comprising:

the first determining module is used for determining whether a multi-Scheduling Request (SR) needs to be allocated according to the Radio Bearer (RB) requirement of a terminal;

a multi-SR resource allocation module, configured to perform multi-SR resource allocation if it is determined that the terminal capability supports multi-SR configuration;

further comprising: an initialization module, configured to perform SR resource initialization for each dedicated BWP of a serving cell according to a set rule with a bandwidth part BWP as a unit;

9. The SR resource allocation apparatus according to claim 8, wherein said terminal RB requirements comprise one or more RB requirements;

the multi-SR resource allocation module comprises:

10. The SR resource allocation apparatus of claim 9 further comprising:

11. The SR resource allocation apparatus according to claim 8, further comprising:

12. The SR resource allocation apparatus of claim 11 wherein the single SR resource allocation module comprises:

13. The SR resource allocation apparatus of claim 12 wherein the obtaining sub-module comprises:

14. The SR resource allocation apparatus of claim 8, wherein said initialization module comprises:

the first initialization submodule is used for initializing each resource node according to the sequence of the positions of the time slot, the OCC, the CS and the initial resource block RB to obtain an SR resource linked list;

15. A base station comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor when executing the program performs the steps of the SR resource allocation method according to any of claims 1 to 7.

16. A non-transitory computer readable storage medium, having stored thereon a computer program, wherein the computer program, when executed by a processor, performs the steps of the SR resource allocation method according to any of claims 1 to 7.