CN112004268B

CN112004268B - Resource scheduling method and device

Info

Publication number: CN112004268B
Application number: CN202011152028.9A
Authority: CN
Inventors: 李文情
Original assignee: Hangzhou H3C Technologies Co Ltd
Current assignee: Hangzhou H3C Technologies Co Ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-01-26
Anticipated expiration: 2040-10-26
Also published as: CN112004268A

Abstract

The embodiment of the invention provides a resource scheduling method and a device, when a target user equipment needs to schedule Physical Downlink Control Channel (PDCCH) resources, if scheduling threshold control is enabled currently and scheduling conditions are met currently, whether downlink service scheduling or uplink service scheduling is carried out and Downlink Control Information (DCI) information carried by the PDCCH is determined according to data to be transmitted, when the downlink service scheduling is determined, downlink resources are scheduled according to downlink DCI allocation times which are recorded in PDCCH slots and correspond to the target user equipment, or when the uplink service scheduling is determined, uplink resources are scheduled according to uplink DCI allocation times which are recorded in the PDCCH slots and correspond to the target user equipment, and the scheduled resources can be dispersedly allocated to the slots to realize balanced scheduling.

Description

Resource scheduling method and device

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a resource scheduling method and apparatus.

Background

With the continuous landing of the 5G protocol, related technologies are also rapidly developing and evolving, such as a 5G Access Network (RAN) technology, to meet various future service models, such as voice, data, image, video, intelligent terminal, and automation service. Different service models are required to meet different performance indexes, and flexibly allocate access wireless resources for flexibly adapting to different service modules, so that various requirements are provided for resource scheduling and allocation of a 5G access network.

In the 5G Time Division Duplexing (TDD) related technology, when scheduling resources, if there are available resources in a slot, scheduling is successful, and if there are no available resources, scheduling is failed. In this way, scheduling is gathered on slots with certain opportunities in front, and other slots are relatively free, resulting in uneven allocation of resources among the slots.

Disclosure of Invention

In order to overcome the problems in the related art, the invention provides a resource scheduling method and device, which can discretely allocate resources in each slot to realize balanced scheduling.

In a first aspect, the present invention provides a resource scheduling method, where the method includes:

when Physical Downlink Control Channel (PDCCH) resources are scheduled for target user equipment, if scheduling threshold control is enabled currently and scheduling conditions are met currently, determining whether downlink service scheduling or uplink service scheduling is carried out according to data to be transmitted;

when determining that the downlink service is scheduled, scheduling Physical Downlink Shared Channel (PDSCH) resources and Physical Uplink Control Channel (PUCCH) resources according to the recorded downlink DCI allocation times corresponding to the target user equipment in the PDCCH slot;

and when the uplink service is determined to be scheduled, scheduling Physical Uplink Shared Channel (PUSCH) resources according to the recorded uplink DCI distribution times corresponding to the target user equipment in the PDCCH slot.

With reference to the first aspect, in a first possible implementation manner, the currently meeting the scheduling condition refers to: and the recorded total DCI distribution times corresponding to the target user equipment in the PDCCH slot is less than a set total scheduling threshold, or the set total scheduling threshold is a first set value.

With reference to the first aspect, in a second possible implementation manner, scheduling, according to the recorded downlink DCI allocation times corresponding to the target ue in a PDCCH slot, a physical downlink shared channel PDSCH resource and a physical uplink control channel PUCCH resource includes:

when the downlink DCI allocation frequency is smaller than a set downlink scheduling threshold or the set downlink scheduling threshold is a designated value, selecting a first value from a set K0, and if the sum of the first value and the PDCCH slot is matched with the PDSCH slot, scheduling PDSCH resources in the PDSCH slot; selecting a second value from the set K1, and scheduling PUCCH resources in PUCCH slots if the sum of the first value, the second value and the PDCCH slots is matched with the PUCCH slots;

wherein, the values in the K0 set are used for representing the scheduling interval of the PDCCH and the PDSCH in the downlink scheduling process; the values in the K1 set are used to indicate the scheduling interval between PDSCH and HARQ-ACK feedback in the downlink scheduling process.

With reference to the first aspect, in a third possible implementation manner, scheduling a physical uplink shared channel, PUSCH, according to the recorded uplink DCI allocation times corresponding to the target user equipment in a PDCCH slot includes:

when the uplink DCI allocation frequency is smaller than a set uplink scheduling threshold or the value of the set uplink scheduling threshold is a designated value, selecting a third value from a set K2, and scheduling PUSCH resources in a PUSCH slot if the sum of the third value and a PDCCH slot is matched with the PUSCH slot and the random channel check of the PUSCH and the PUCCH is passed;

wherein, the numerical value in the K2 set is used for representing the scheduling interval between the PDCCH and the PUSCH in the uplink scheduling process.

With reference to the first aspect, in a fourth possible implementation manner, the PUSCH and PUCCH associated check is implemented by:

and if the selected value from the K2 set is the minimum value in the K2 set and the target user equipment meets the protocol requirement of UCI channel association, determining that the PUSCH and PUCCH channel association check passes.

With reference to the first aspect, in a fifth possible implementation manner, the method further includes:

if the scheduling threshold control is enabled currently, when the PDCCH slot is the last PDCCH slot in the slot format period where the PDCCH slot is located, and the data volume to be transmitted corresponding to the target user equipment is greater than or equal to a first set data volume threshold after the PDCCH resource is scheduled, the scheduling threshold control is cancelled;

if the control of the scheduling threshold is cancelled currently, when the PDCCH slot is not the last PDCCH slot in the slot format period in which the PDCCH slot is located, and the data volume to be transmitted corresponding to the target user equipment is less than or equal to a second set data volume threshold after the PDCCH resource is scheduled, enabling the control of the scheduling threshold; the first set data amount threshold is greater than the second set data amount threshold.

In a second aspect, the present invention provides an apparatus for scheduling resources, the apparatus comprising:

a service determining module, configured to determine whether to perform downlink service scheduling or uplink service scheduling according to data to be transmitted when a physical downlink control channel PDCCH resource is scheduled for a target user equipment and if scheduling threshold control is currently enabled and a scheduling condition is currently satisfied;

a downlink scheduling module, configured to schedule, when it is determined to be downlink service scheduling, a physical downlink shared channel PDSCH resource and a physical uplink control channel PUCCH resource according to the recorded downlink DCI allocation times corresponding to the target user equipment in the PDCCH slot;

and the uplink scheduling module is used for scheduling the Physical Uplink Shared Channel (PUSCH) resource according to the recorded uplink DCI distribution times corresponding to the target user equipment in the PDCCH slot when the uplink service scheduling is determined.

With reference to the second aspect, in a first possible implementation manner, the currently meeting the scheduling condition is: and the recorded total DCI distribution times corresponding to the target user equipment in the PDCCH slot is less than a set total scheduling threshold, or the set total scheduling threshold is a first set value.

With reference to the second aspect, in a second possible implementation manner, the downlink scheduling module is specifically configured to:

With reference to the second aspect, in a third possible implementation manner, the uplink scheduling module is specifically configured to:

With reference to the second aspect, in a fourth possible implementation manner, the PUSCH and PUCCH associated check is implemented by:

With reference to the second aspect, in a fifth possible implementation manner, the apparatus further includes:

the scheduling cancellation module is used for canceling the scheduling threshold control when the PDCCH slot is the last PDCCH slot in a slot format period in which the PDCCH slot is located and the data volume to be transmitted corresponding to the target user equipment is greater than or equal to a first set data volume threshold after the PDCCH resources are scheduled if the scheduling threshold control is enabled currently;

the scheduling enabling module is used for enabling the scheduling threshold control when the PDCCH slot is not the last PDCCH slot in the slot format period in which the PDCCH slot is located and the data volume to be transmitted corresponding to the target user equipment is less than or equal to a second set data volume threshold after the PDCCH resource is scheduled if the scheduling threshold control is cancelled currently; the first set data amount threshold is greater than the second set data amount threshold.

The resource scheduling method provided by the invention determines to carry out downlink service scheduling or uplink service scheduling according to data to be transmitted when Physical Downlink Control Channel (PDCCH) resources are scheduled for target user equipment, if scheduling threshold control is enabled currently and scheduling conditions are met currently, and when the downlink service scheduling is determined, PDSCH resources and PUCCH resources are scheduled according to downlink DCI (Downlink control information) distribution times which are recorded in PDCCH (physical Downlink control channel) slots and correspond to the target user equipment, and when the uplink service scheduling is determined, PUSCH resources are scheduled according to uplink DCI distribution times which are recorded in the PDCCH slots and correspond to the target user equipment, so that the scheduled resources can be distributed to each slot dispersedly, and balanced scheduling is realized.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the specification.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present specification and together with the description, serve to explain the principles of the specification.

Fig. 1 is a flowchart illustrating a resource scheduling method according to an embodiment of the present invention.

Fig. 2 is a diagram illustrating another flow of a resource scheduling method according to an embodiment of the present invention.

Fig. 3 is a functional block diagram of a resource scheduling apparatus according to an embodiment of the present invention.

Fig. 4 is a hardware structure diagram of a network-side device according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of embodiments of the invention, as detailed in the following claims.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of embodiments of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used to describe various information in embodiments of the present invention, the information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of embodiments of the present invention. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

The channels included in the 5G TDD include a Physical Downlink Control Channel (PDCCH), a Physical Downlink Shared Channel (PDSCH), a Physical Uplink Control Channel (PUCCH), and a Physical Uplink Shared Channel (PDSCH). A network side device, for example, a base station, sends a PDSCH to a UE, and after receiving the PDSCH, the UE feeds back a Hybrid Automatic Repeat reQuest (HARQ) -Acknowledgement Character (ACK), that is, HARQ-ACK, to the base station.

In the resource scheduling, a parameter K0 represents a scheduling interval between PDCCH and PDSCH in the downlink scheduling process, a parameter K1 represents a scheduling interval between PDSCH and HARQ-ACK feedback in the downlink scheduling process, and a parameter K2 represents a scheduling interval between PDCCH and PUSCH in the uplink scheduling process. Each of the parameters has a plurality of selectable values, all of the selectable values of the parameter K0 form a set K0, denoted as K0, all of the selectable values of the parameter K1 form a set K1, denoted as K1, and all of the selectable values of the parameter K2 form a set K2, denoted as K2. For the UE, the sets K0, K1, and K2 are preset.

The 5G TDD provides Flexible slot format configuration, that is, a configuration mode of an uplink slot number + a downlink slot number + an uplink symbol number + a downlink symbol number, so as to determine a slot format period, an uplink slot number, a downlink slot number, a Flexible symbol (i.e., a Flexible symbol) number, and the like. One of the ways to configure the slot format at the terminal side is cell level slot format configuration.

The slot in one slot format period may include a PDCCH slot, a PDSCH slot, a PUCCH slot, and a PUSCH slot. The PDCCH slot is a slot that can be used to schedule PDCCH resources, and is generally a DL slot (a slot that only includes DL symbols) or an S slot that includes multiple UL symbols that can be used for PDCCH transmission (a mixed slot that includes multiple symbols of UL symbols, DL symbols, and Flexible symbols at the same time); a PDSCH slot is a slot, typically a DL slot or an S slot comprising a plurality of DL symbols available for PDSCH transmission, that may be used for scheduling PDSCH resources; a PUCCH slot is a slot that may be used to schedule PUCCH resources, typically a UL slot (a slot that includes only UL symbols) or an S slot that includes multiple UL symbols that may be used for PUCCH transmission; a PUSCH slot is a slot that may be used to schedule PUSCH resources, typically a UL slot or an S slot that includes multiple UL symbols that may be used for PUSCH transmission.

In the related art, when a User Equipment (UE) needs to be scheduled with PDCCH resources, if available resources exist in a PDCCH slot, corresponding uplink resources (PUSCH resources) or downlink resources (PDSCH resources and PUCCH resources) are directly scheduled for the UE on the PDCCH slot according to sets { K0}, { K1}, and { K2 }; if there are no available resources within the PDCCH slot, scheduling fails. Thus, scheduling is aggregated into slots with a high chance, and other slots are relatively free, resulting in an unbalanced allocation of scheduled resources among the slots.

Under the condition of the imbalance of the scheduling resource allocation, when the resources are relatively tense or the number of the scheduled users is large, scheduling failure is often caused due to the limitation of some resources, for example, under the scene that the resources of the PUSCH and the PUCCH conflict and the PUSCH and the PUCCH are not reusable, uplink scheduling and downlink scheduling can mutually preempt scheduling opportunities or resources, and the scheduling failure rate is increased.

The resource scheduling method provided by the embodiment of the invention aims to solve the problem of unbalanced resource allocation in scheduling.

The resource scheduling method provided by the embodiment of the invention can be applied to the cell level slot format configuration scene.

Fig. 1 is a flowchart illustrating a resource scheduling method according to an embodiment of the present invention. The resource scheduling method can be applied to network side equipment, such as a base station. As shown in fig. 1, the method may include:

s101, when a PDCCH resource is scheduled for target user equipment, if the scheduling threshold control is enabled currently and the scheduling condition is met currently, determining whether to perform downlink service scheduling or uplink service scheduling according to data to be transmitted.

And S102, when determining that the downlink service is scheduled, scheduling PDSCH resources and PUCCH resources according to the recorded downlink DCI allocation times corresponding to the target user equipment in the PDCCH slot.

And S103, when the uplink service is determined to be scheduled, scheduling the PUSCH resource according to the recorded uplink DCI distribution times corresponding to the target user equipment in the PDCCH slot.

The PDCCH carries Downlink Control Information (DCI) sent by a network side device such as a base station to the UE, where the DCI includes: firstly, carrying control information related to uplink and downlink data transmission (such as resource allocation information of data transmission, format information of uplink and downlink resources in a time slot, uplink and downlink data channels and power control information of signals); information of dynamic time slot configuration; and resource occupation information.

In this embodiment, the data to be transmitted may be data to be transmitted to the network side device by the UE, or may also be data to be transmitted to the UE by the network side device.

When the UE needs to transmit data to the network side device, the UE may send a Buffer Status Report (BSR) to the network side device, where the BSR includes information of a data amount to be transmitted. The network side equipment can know that the data to be transmitted is uplink data according to the BSR uploaded by the UE, so that the service can be determined to be uplink service scheduling, and the DCI information carried by the PDCCH is determined to be used for controlling the uplink data transmission.

When the network side needs to transmit data to the UE, the network side device may determine that the data to be transmitted is downlink data, and then determine that the service is downlink service scheduling, and determine that DCI information carried by the PDCCH is used for controlling downlink data transmission.

Therefore, in an example, the manner of determining whether to perform downlink traffic scheduling or uplink traffic scheduling according to the data to be transmitted may be:

when the data to be transmitted is uplink data, uplink service scheduling can be determined; when the data to be transmitted is downlink data, downlink service scheduling can be determined.

When determining that the downlink service is scheduled, scheduling downlink resources through step S102; when it is determined that the uplink traffic is scheduled, uplink resources are scheduled through step S103.

It should be noted that one PDCCH includes one DCI, and is used to carry uplink control information or downlink control information. If the UE capability allows, the network side supports the same PDCCH slot to send a plurality of DCIs for uplink control or downlink control by configuring PDCCH resources.

For example, in one example, when the user traffic is uplink traffic, i.e., in a scenario where there is only uplink data, 1 or more PDCCHs are allocated for the uplink control DCI.

In another example, when the user traffic is downlink traffic, i.e., in a scenario where there is only downlink data, 1 or more PDCCHs are allocated for downlink control DCI.

In another example, when the user traffic includes both downlink traffic and uplink traffic, i.e., in a scenario where both uplink and downlink data are available, 1 or more PDCCHs are respectively transmitted to the UE for uplink control DCI and/or downlink control DCI.

Different from the related art, in this embodiment, when scheduling the PDCCH resource for the target ue, the uplink resource and/or the downlink resource is not directly scheduled, but it needs to be determined whether the scheduling threshold control is currently enabled and whether the scheduling condition is currently satisfied, and the resource scheduling is performed in the current PDCCH slot only when the scheduling threshold control is currently enabled and the scheduling condition is currently satisfied. Otherwise, if the scheduling threshold control is enabled currently but the scheduling condition is not satisfied currently, even if there are still remaining schedulable resources in the current PDCCH slot, the scheduling fails in the current PDCCH slot, so that it is necessary to replace the PDCCH slot with another PDCCH slot for resource scheduling. Therefore, the condition that the scheduling is gathered to the slot with the front opportunity is avoided, and the scheduled resources are distributed to each slot in a scattered manner, so that the balanced scheduling is realized.

And if the control of the scheduling threshold is cancelled currently, performing resource scheduling on the current PDCCH slot according to the related technology.

In one example, currently meeting the scheduling condition means: and the recorded total DCI distribution times corresponding to the target user equipment in the PDCCH slot is less than a set total scheduling threshold, or the set total scheduling threshold is a first set value.

In this embodiment, the total DCI allocation times corresponding to the UE, the downlink DCI allocation times corresponding to the UE, and the uplink DCI allocation times corresponding to the UE may be recorded for each UE in the PDCCH slot, and when the UE successfully schedules resources in the PDCCH slot, the total DCI allocation times and the downlink DCI allocation times or the uplink DCI allocation times corresponding to the UE in the PDCCH slot are correspondingly updated.

The downlink resource in step S102 is a resource required for downlink data transmission, for example, in an example, the downlink resource may include a PDSCH resource and a PUCCH resource.

In an example, in step S102, scheduling PDSCH resources and PUCCH resources according to the recorded downlink DCI allocation times corresponding to the target ue in PDCCH slots may include:

In this embodiment, the PUCCH resource scheduled in the PUCCH slot is a PUCCH resource for HARQ-ACK feedback.

In this embodiment, the downlink scheduling threshold is set to limit the downlink DCI allocation times of the target ue in the PUCCH slot, so that scheduling is prevented from being aggregated in the PUCCH slot that is in front of an opportunity in a lower business scenario, and scheduled resources are allocated to each slot in a distributed manner, thereby achieving balanced scheduling.

In one example, the manner of selecting the first value in the set of K0 may be: the first value is selected among the set of K0 in order of small to large K0 values.

For example, assume that there are 16K 0 values in the set of K0, K0-0 to K0-15, arranged in descending order: k0-0, K0-1, K0-2 … …, K0-15, when the value of K0 is selected in the K0 set for the first time, K0-0 is selected, K0-1 … … is selected for the second time, and so on.

In one example, the manner of selecting the first value in the set of K0 may be: the first value is selected among the set of K0 in order of the K0 values from large to small.

For example, assume that there are 16K 0 values in the set of K0, K0-0 to K0-15, arranged in descending order: k0-15, K0-14, K0-13 … …, K0-0, when the value of K0 is selected in the K0 set for the first time, K0-15 is selected, K0-14 … … is selected for the second time, and so on.

It should be noted that the two selection manners are merely examples, and the first value may be selected from the K0 set in other manners according to needs in the application, and is not limited to the two selection manners.

The way of setting the K0 set and the K1 set in this embodiment will be described later.

In this embodiment, the specified value may be 0 or other small number. Under the condition that the value of the downlink scheduling threshold is set to be a designated value, no matter whether the downlink DCI allocation frequency is smaller than the set downlink scheduling threshold or not, the resources are scheduled for the UE in the current PUCCH slot. This is set for the case where the UE suddenly has a large amount of downlink data. Therefore, the downlink burst data volume corresponding to the UE can be scheduled in time to transmit the burst data volume corresponding to the UE without being controlled by the scheduling threshold, so that the data transmission delay is reduced, and the influence on the user experience is avoided.

Under the condition that the value of the downlink scheduling threshold is set to be a designated value, the recorded data identifier to be transmitted corresponding to the target user equipment can be updated to be a first identifier, and the first identifier is used for indicating the burst data volume.

After the scheduling is successful, respectively increasing a second set value (for example, the second set value may be 1) to the downlink DCI allocation frequency corresponding to the target user equipment and the total DCI allocation frequency corresponding to the target user equipment; if there is downlink data corresponding to the target ue, the process returns to step S101 to execute the above procedure again. In this way, by executing the above procedure for multiple times, sufficient resources can be scheduled for all downlink data corresponding to the target user equipment, so as to complete transmission of all downlink data corresponding to the target user equipment. Here, all downlink data corresponding to the target user equipment refers to all downlink data corresponding to the target user equipment in one service process.

The uplink resource in step S103 is a resource required for uplink data transmission, for example, in an example, the uplink resource may include a PUSCH resource.

In an example, in step S103, scheduling PUSCH resources according to the recorded uplink DCI allocation times corresponding to the target user equipment in the PDCCH slot may include:

In this embodiment, the uplink scheduling threshold is set to limit the uplink DCI allocation times of the target ue in the PUCCH slot, so that scheduling is prevented from being aggregated in the PUCCH slot that is in front of an opportunity in an uplink service scenario, and scheduled resources are allocated to each slot in a distributed manner, thereby achieving balanced scheduling.

In one example, the way to select the third value in the set of K2 may be: the first value is selected among the set of K2 in order of small to large K2 values.

For example, assume that there are 16K 2 values in the set of K2, K2-0 to K2-15, arranged in descending order: k2-0, K2-1, K2-2 … …, K2-15, when the value of K2 is selected in the K2 set for the first time, K2-0 is selected, K2-1 … … is selected for the second time, and so on.

In one example, the way to select the third value in the set of K2 may be: the first value is selected among the set of K2 in order of the K2 values from large to small.

For example, assume that there are 16K 2 values in the set of K2, K2-0 to K2-15, arranged in descending order: k2-15, K2-14, K2-13 … …, K2-0, when the value of K2 is selected in the K2 set for the first time, K2-15 is selected, K2-14 … … is selected for the second time, and so on.

It should be noted that the above two selection manners are merely examples, and the third value may be selected from the K2 set in other manners as needed in the application, and is not limited to the above two selection manners.

The way of setting the K2 set in this embodiment will be described later.

In this embodiment, the specified value may be 0 or other small number. Under the condition that the value of the uplink scheduling threshold is set to be a designated value, no matter whether the uplink DCI distribution frequency corresponding to the target user equipment is smaller than the set uplink scheduling threshold or not, the resources are scheduled for the UE in the current PUCCH slot. This is set for the case where the UE suddenly has a large amount of uplink data. Therefore, the burst data volume corresponding to the UE can be transmitted by all available resources in time without being controlled by the scheduling threshold aiming at the uplink burst large data volume corresponding to the UE, so that the data transmission delay is reduced, and the influence on the user experience is avoided.

Under the condition that the uplink scheduling threshold value is set to be a designated value, the recorded data identifier to be transmitted corresponding to the target user equipment can be updated to be a first identifier, and the first identifier is used for representing the burst data volume.

After the scheduling is successful, respectively increasing the uplink DCI distribution times corresponding to the target user equipment and the total DCI distribution times corresponding to the target user equipment by a second set value; if there is uplink data corresponding to the target ue, the process returns to step S101 to execute the above procedure again. In this way, by executing the above procedure for multiple times, sufficient resources can be scheduled for all uplink data corresponding to the target user equipment, so as to complete transmission of all uplink data corresponding to the target user equipment. Here, all uplink data corresponding to the target user equipment refers to all uplink data corresponding to the target user equipment in one service process.

The PUSCH and PUCCH channel associated check can be realized by the following modes:

Otherwise, if the selected value from the K2 set is not the minimum value in the K2 set, or the target user equipment does not meet the protocol requirement of UCI channel association, determining that the PUSCH and PUCCH channel association check fails.

It should be noted that the PUSCH and PUCCH channel following check may adopt any channel following check method in the related art, but is not limited to the above listed method, and for example, the PUSCH and PUCCH channel following check may also be performed according to whether the purpose meets the protocol requirement of UCI channel following and the capability requirement of the target user equipment, and whether the construction channel bit may introduce a large change in the PUSCH actual coding efficiency.

The following describes the arrangement of the K0 set, the K1 set, and the K2 set in the foregoing embodiment of the present invention.

In application, the value ranges of K0, K1 and K2 can be determined primarily based on UE capacity, product processing time delay of each manufacturer and slot format configuration, and then the value sets { K0}, { K1}, and { K2} are determined based on slot format configuration. Wherein the user configured K1 comprises at most 8 different K1 values, and K0 of K0 is combined with different symbol SLIVs supported by PDSCH, configuring at most 16 combinations; k2 in { K2} is combined with different symbol SLIVs supported by PUSCH, configuring up to 16 combinations.

The method for determining the value sets { K0}, { K1}, and { K2} based on slot format configuration may be:

traversing all PUSCH slots in the slot format period, and searching for available PDCCH slots in the value range of K2, wherein the value set of K2 corresponding to the available PDCCH slots is { K2 }; similarly, all PDCCH slots in the slot format period are traversed, available PDSCH slots and PUCCH slots are searched in the value range of K0, the value set of K0 corresponding to the available PDSCH slots is { K0}, and the value set of K1 corresponding to the available PUCCH slots is { K1 }.

In general, the upper and lower limits of the ranges of K0, K1, and K2 can be as shown in table 1.

The following describes setting the total scheduling threshold tolDci, setting the uplink scheduling threshold ulDci, and setting the downlink scheduling threshold dlDci in this embodiment.

(1) Initial values for tolDci, ulDci and dlDci

Assume that the number of DCI intended to be processed per slot by the target user equipment tolDciPerSl = ceiling ((number of PUSCH slots + number of PDSCH slots)/number of PDCCH slots in slot format period).

Where ceiling is a rounding up function.

The target user equipment corresponds to tolDci initial value = tolDciPerSl.

When K0 only supports 0, then dlDci initial value = 1; otherwise dlDci initial value = { K0} size of set.

udci initial value = toldciprsl initial value-dlDci initial value.

(2) Updated values of tolDci, ulDci and dlDci

In an application, the values of tolDci, uddci and dlDci may be updated based on historical data.

Assuming that the downlink DCI frequency scheduled by the target user equipment in the history time period T _ s (unit ms, millisecond) is dlDciCnt and the uplink DCI frequency is uddcicnt, the values of tolDci, udci, and dlDci may be adjusted as follows according to the downlink DCI frequency and the uplink DCI frequency in the history time period T _ s to obtain updated values:

the tolDci update value = MIN { ceiling ((slot format period [ (dlDciCnt + ulDciCnt))/(T _ s:toldciperp)), tolDciPerSl };

dlDci update value = ceiling (tolDci × dlDciCnt/(dlDciCnt + ulDciCnt));

the uddci update value = tolDci-dlDci.

Wherein, the slot format period has the unit of ms, i.e. millisecond.

In one example, the values of tolDci, udci, and dlDci are updated once every time period T _ s, with T _ s (units ms, msec) as a period.

The total scheduling threshold, the uplink scheduling threshold, and the downlink scheduling threshold in the foregoing embodiments may adopt the tolDci initial value, the ulDci initial value, and the dlDci initial value in (1), or may adopt the tolDci updated value, the ulDci updated value, and the dlDci updated value in (2).

In one example, the resource scheduling method may further include:

When the PDCCH slot is the last PDCCH slot in the slot format period where the PDCCH slot is located, and the amount of data to be transmitted corresponding to the target user equipment after the PDCCH resource is scheduled is greater than or equal to the first set data amount threshold, it indicates that the target user equipment still has a lot of data to be transmitted, and if the scheduling threshold control is still enabled at this time, a lot of scheduling failures occur, and the working efficiency is affected. At this time, the control of the scheduling threshold is cancelled, and resources are scheduled for the target user equipment according to the related technology, so that the influence caused by the updating lag of the threshold limit can be avoided.

When the PDCCH Slot is not the last PDCCH Slot in the Slot format period where the PDCCH Slot is located, and the amount of data to be transmitted corresponding to the target user equipment after the PDCCH resource is scheduled is less than or equal to the second set data amount threshold, it indicates that the amount of data to be transmitted of the target user equipment is already less, and at this time, if the scheduling threshold control is still cancelled, the condition of centralized aggregation of scheduling occurs. At the moment, the control of the scheduling threshold is enabled, resources can be distributed reasonably and dispersedly, and balanced scheduling is realized.

The following describes the resource scheduling method according to the embodiment of the present invention in further detail by using an example.

Fig. 2 is a diagram illustrating another flow of a resource scheduling method according to an embodiment of the present invention. Referring to fig. 2, in this embodiment, a flow of the resource scheduling method may include:

a1, determining PDCCH slot;

a2, judging whether the scheduling threshold control is enabled currently and whether the total DCI distribution frequency of the corresponding UE recorded in the current PDCCH slot is smaller than the set total scheduling threshold tolDci or judging whether the scheduling threshold control is cancelled currently, if the scheduling threshold control is enabled currently and the total DCI distribution frequency of the corresponding UE recorded in the current PDCCH slot is smaller than tolDci or the scheduling threshold control is cancelled, executing a3, otherwise executing the step;

a3, judging whether to execute downlink service scheduling or uplink service scheduling, if executing uplink service scheduling, executing step a4, if executing downlink service scheduling, executing step a 17;

a4, judging whether the uplink DCI distribution frequency is less than the set uplink scheduling threshold ulDci, or judging whether the value of the set uplink scheduling threshold ulDci is 0, if the uplink DCI distribution frequency is less than the ulDci or the value of the ulDci is 0, executing the step a5, otherwise executing the step a 24;

a5, determining whether a next K2 value in the K2 set is available, if so, executing step a6, and if no K2 value in the K2 set is available, executing step a 24;

a6, judging whether the sum of the K2 value and the PDCCH slot determined in the step a1 is a PUSCH slot, if yes, executing the step a7, otherwise, executing the step a 5;

a7, judging whether the channel associated check of the PUSCH and the PUCCH passes or not, if so, executing a step a8, otherwise, executing a step a 5;

a8, scheduling PUSCH resources in a PUSCH slot, and scheduling PDCCH resources in a PDCCH slot, wherein the PUSCH and PDCCH resources are successfully scheduled;

a9, adding 1 to the total DCI allocation times and the uplink DCI allocation times of the corresponding UE recorded in the current PDCCH slot;

a10, judging whether data to be transmitted are not scheduled, if yes, returning to the step a2, otherwise, executing the step a 11;

a11, if the control of the scheduling threshold is enabled currently, judging whether the PDCCH slot is the last PDCCH slot in the slot format period in which the PDCCH slot is located, if yes, executing a step a12, otherwise, executing a step a 14;

a12, judging whether the data volume to be transmitted corresponding to the target user equipment after the PDCCH resource is scheduled is larger than or equal to a first set data volume threshold, if yes, executing a step a13, otherwise, executing a step a 11;

a13, canceling the control of the scheduling threshold, and returning to the step a 2;

a14, judging whether the control of the scheduling threshold is cancelled currently, and after the PDCCH resources are scheduled, if so, executing a step a15, and if not, executing a step a16, wherein the data volume to be transmitted corresponding to the target user equipment is less than or equal to a second set data volume threshold;

a15, enabling the control of the scheduling threshold, and returning to the step a 2;

a16, keeping the state unchanged, and returning to the step a 2;

a17, judging whether the downlink DCI distribution frequency is less than a set downlink scheduling threshold dlDci, or judging whether a value of the set downlink scheduling threshold dlDci is 0, if the downlink DCI distribution frequency is less than dlDci or dlDci is 0, executing the step a18, otherwise executing the step a 24;

a18, determining whether a next K0 value in the K0 set is available, if so, executing step a19, and if no K0 value in the K0 set is available, executing step a 24;

a19, judging whether the sum of the K0 value and the PDCCH slot determined in the step a1 is the PDSCH slot, if yes, executing the step a20, otherwise, executing the step a 18;

a20, determining whether a next K1 value in the K1 set is available, if so, executing step a21, and if no K1 value in the K1 set is available, returning to step a 18;

a21, judging whether the sum of the K0 value, the K1 value and the PDCCH slot determined in the step a1 is PUCCH slot, if yes, executing the step a22, otherwise, executing the step a 18;

a22, dispatching PDSCH resources at PDSCH slots, dispatching PUCCH resources at PUCCH slots, dispatching PDCCH at PDCCH slots, and successfully dispatching PDCCH, PDSCH and PUCCH resources;

a23, adding 1 to the total DCI allocation times and the downlink DCI allocation times of the corresponding UE recorded in the current PDCCH slot, and turning to the step a 10;

a24, scheduling fails, go to step a 11.

In the resource scheduling method provided in the embodiment of the present invention, when a physical downlink control channel PDCCH resource is scheduled for a target user equipment, if scheduling threshold control is currently enabled and a scheduling condition is currently satisfied, downlink service scheduling or uplink service scheduling is determined according to data to be transmitted, and when it is determined that the downlink service scheduling is performed, a PDSCH resource and a PUCCH resource are scheduled according to downlink DCI allocation times recorded in a PDCCH slot and corresponding to the target user equipment, or when it is determined that the uplink service scheduling is performed, a PUSCH resource is scheduled according to uplink DCI allocation times recorded in the PDCCH slot and corresponding to the target user equipment, so that scheduled resources can be dispersedly allocated to each slot, thereby achieving balanced scheduling.

Corresponding to the embodiments of the method, the present specification also provides embodiments of the device and the applied equipment.

Fig. 3 is a functional block diagram of a resource scheduling apparatus according to an embodiment of the present invention. The resource scheduling apparatus may be applied to a network side device such as a base station, and as shown in fig. 3, the apparatus includes:

a service determining module 310, configured to determine, when a physical downlink control channel PDCCH resource needs to be scheduled for a target user equipment, whether to perform downlink service scheduling or uplink service scheduling according to data to be transmitted if scheduling threshold control is currently enabled and a scheduling condition is currently satisfied;

a downlink scheduling module 320, configured to schedule, when it is determined to be downlink service scheduling, a PDSCH resource and a PUCCH resource of a physical downlink shared channel according to the recorded downlink DCI allocation times corresponding to the target ue in the PDCCH slot;

and the uplink scheduling module 330 is configured to schedule a physical uplink shared channel PUSCH resource according to the recorded uplink DCI allocation times corresponding to the target user equipment in the PDCCH slot when it is determined that the uplink service is scheduled.

In an exemplary implementation, the currently meeting the scheduling condition is: and the recorded total DCI distribution times corresponding to the target user equipment in the PDCCH slot is less than a set total scheduling threshold, or the set total scheduling threshold is a first set value.

In an exemplary implementation process, the downlink scheduling module 320 may be specifically configured to:

when the downlink DCI allocation frequency is smaller than a set downlink scheduling threshold or the set downlink scheduling threshold is a designated value, selecting a first value from a set K0, and if the sum of the first value and a PDCCH slot is matched with a PDSCH slot of a physical downlink shared channel, scheduling PDSCH resources at the PDSCH slot; selecting a second value from a set K1, and scheduling PUCCH resources in a PUCCH slot if the sum of the first value, the second value and the PDCCH slot is matched with the PUCCH slot;

In an exemplary implementation process, the uplink scheduling module 330 may be specifically configured to:

when the uplink DCI allocation frequency is smaller than a set uplink scheduling threshold or the value of the set uplink scheduling threshold is a designated value, selecting a third value from a set K2, and scheduling PUSCH resources in a PUSCH slot if the sum of the third value and the PDCCH slot is matched with a PUSCH slot of a physical uplink shared channel and the PUSCH and PUCCH channel-associated check is passed;

In an exemplary implementation process, the PUSCH and PUCCH associated check is implemented by:

In an exemplary implementation, the apparatus may further include:

The embodiment of the present invention further provides a network side device, which includes a memory, a processor, and a computer program that is stored in the memory and can be run on the processor, where the processor implements the following operations when executing the program:

In an exemplary implementation process, scheduling a PDSCH resource and a PUCCH resource of a physical downlink shared channel according to the recorded downlink DCI allocation times corresponding to the target ue in a PDCCH slot includes:

In an exemplary implementation process, scheduling a physical uplink shared channel PUSCH resource according to the recorded uplink DCI allocation times corresponding to the target user equipment in a PDCCH slot includes:

In one exemplary implementation, the method further comprises:

The network side device of the embodiment of the present invention may adopt a hardware structure as shown in fig. 4. Fig. 4 is a hardware structure diagram of a network-side device according to an embodiment of the present invention, in fig. 4, a storage includes a memory and a nonvolatile storage, and a computer program for implementing a resource scheduling method is stored in the memory.

It should be noted that, besides the processor, the network interface, the memory and the nonvolatile memory shown in fig. 4, in other embodiments, the network-side device may also generally include other hardware, which is not shown in detail in fig. 3.

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the program, when executed by a processor, implements the following operations:

In one exemplary implementation, the method further comprises:

For the device embodiments, since they substantially correspond to the method embodiments, reference may be made to the partial description of the method embodiments for relevant points. The above-described embodiments of the apparatus are merely illustrative, wherein the modules described as separate parts may or may not be physically separate, and the parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution in the specification. One of ordinary skill in the art can understand and implement it without inventive effort.

The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.

Other embodiments of the present description will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This specification is intended to cover any variations, uses, or adaptations of the specification following, in general, the principles of the specification and including such departures from the present disclosure as come within known or customary practice within the art to which the specification pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the specification being indicated by the following claims.

It will be understood that the present description is not limited to the precise arrangements described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present description is limited only by the appended claims.

The above description is only a preferred embodiment of the present disclosure, and should not be taken as limiting the present disclosure, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.

Claims

1. A method for scheduling resources, the method comprising:

when the uplink service is determined to be scheduled, scheduling Physical Uplink Shared Channel (PUSCH) resources according to the recorded uplink DCI distribution times corresponding to the target user equipment in the PDCCH slot;

the currently meeting the scheduling condition means that: and the recorded total DCI distribution times corresponding to the target user equipment in the PDCCH slot is less than a set total scheduling threshold, or the set total scheduling threshold is a first set value.

2. The method of claim 1, wherein scheduling Physical Downlink Shared Channel (PDSCH) resources and Physical Uplink Control Channel (PUCCH) resources according to the recorded downlink DCI allocation times corresponding to the target user equipment in the PDCCH slots comprises:

wherein, the values in the K0 set are used for representing the scheduling interval of the PDCCH and the PDSCH in the downlink scheduling process; the values in the K1 set are used to indicate the scheduling interval between PDSCH and HARQ-ACK feedback of hybrid automatic repeat request-acknowledgement characters in the downlink scheduling process.

3. The method of claim 1, wherein scheduling Physical Uplink Shared Channel (PUSCH) resources according to the recorded uplink DCI allocation times corresponding to the target user equipment in the PDCCH slots comprises:

4. The method of claim 3, wherein the PUSCH and PUCCH associated check is implemented by:

5. The method of any of claims 1 to 4, further comprising:

6. An apparatus for scheduling resources, the apparatus comprising:

the uplink scheduling module is used for scheduling Physical Uplink Shared Channel (PUSCH) resources according to the recorded uplink DCI distribution times corresponding to the target user equipment in the PDCCH slot when the uplink service scheduling is determined;

7. The apparatus according to claim 6, wherein the downlink scheduling module is specifically configured to:

8. The apparatus of claim 6, wherein the uplink scheduling module is specifically configured to:

9. The apparatus of claim 8, wherein the PUSCH and PUCCH associated check is implemented by:

10. The apparatus of any one of claims 6 to 9, further comprising: