CN109788570B - A logical channel priority resource scheduling method and device - Google Patents

Abstract

Embodiments of the present invention provide a logical channel priority resource scheduling method and device. The method includes: when there is new data transmission, if at least one type of resource allocated by the base station is obtained, wherein the resource includes at least a resource type; judging whether there is an authorization-free resource in the resource, wherein the authorization-free resource is The resource type is authorization-free; if the authorization-free resource exists, then filter the logical channel corresponding to the authorization-free resource, and allocate the authorization-free resource to the logical channel in turn according to the token bucket variable and priority, wherein the The channel parameters of the logical channel include at least the token bucket variable and priority. In the embodiment of the present invention, by dividing the resources into authorization-free resources and authorized resources, and setting the authorization-free resource indication in the logical channel, the resource scheduling process Resources can be allocated more reasonably in order to meet the low-latency requirements of authorization-free resources and increase the efficiency of resource scheduling.

Description

A logical channel priority resource scheduling method and device

technical field

The embodiments of the present invention relate to the technical field of mobile communications, and in particular to a method and device for scheduling logical channel priority resources.

Background technique

With the increasing number of new mobile devices, the diversification of user needs and the needs of industry applications, it is required that the communication system not only has higher speed and wider bandwidth, but also has higher reliability and lower delay, etc. . At present, 3GPP mainly focuses on the application scenarios of enhanced mobile bandwidth (eMBB) and high reliability and low latency (URLLC). For high reliability and low latency scenarios, a grant-free mechanism is introduced to ensure that the latency requirements are very stringent. business data transmission. In the eMBB scenario, there are also some services with strong burstiness, low transmission delay and small data packets that need to be transmitted. For such services, license-free resources can also be used for transmission.

In the LTE system, the main purpose of inter-UE priority management is to determine the priority of resources allocated to different UEs according to the QoS of each UE's internal logical channel, and UEs with higher priorities will obtain resources first. The priority management within the UE is embodied in the uplink scheduling process, that is, logical channel priority processing to ensure reasonable allocation of resources between different logical channels within the UE. When the UE obtains the resources allocated by the eNB, it will ensure that the data in the high-priority logical channel is sent first according to certain rules, and at the same time avoid the occurrence of data in the low-priority logical channel due to the lack of transmission resources for a long time. "Starvation" phenomenon. For the logical channel priority processing of the LTE system, the token bucket algorithm is adopted. When the bearer is established, RRC will configure parameters such as Priority, Prioritized Bit Rate (PBR) and token bucket capacity duration (Buket Size Duration, BSD) for each logical channel according to the QoS attribute. Where BSD*PBR is the capacity of the token bucket.

For URLLC and eMBB scenarios, the uplink resources available to the UE include unlicensed resources and authorized resources. When there is new data transmission, the existing method cannot satisfy different resources to perform logical channel priority processing in the UE, especially in the scenario where different types of services with low transmission delay requirements jointly use license-free resources.

Contents of the invention

Embodiments of the present invention provide a logical channel priority resource scheduling method and device, which are used to solve the problem that different uplink resources cannot be satisfied in the prior art to perform logical channel priority processing in the UE, especially for different types of services with low transmission delay requirements. Problems in the scenario of jointly using license-free resources.

In a first aspect, an embodiment of the present invention provides a logical channel priority resource scheduling method, including:

When there is new data transmission, if at least one type of resource allocated by the base station is obtained, wherein the resource includes at least a resource type;

Judging whether there is an authorization-free resource among the resources, wherein the resource type of the authorization-free resource is authorization-free;

If the authorization-free resources exist, filter the logical channels corresponding to the authorization-free resources, and allocate authorization-free resources to the logical channels in turn according to the token bucket variable and priority, wherein the channel parameters of the logical channels At least include the token bucket variable and priority.

In a second aspect, an embodiment of the present invention provides a logic channel priority resource scheduling device, including:

An obtaining module, configured to obtain at least one type of resource allocated by the base station when there is new data transmission, wherein the resource includes at least a resource type;

A judging module, configured to judge whether there is an authorization-free resource among the resources, wherein the resource type of the authorization-free resource is authorization-free;

An allocation module, configured to screen logical channels corresponding to the authorization-free resources if the authorization-free resources exist, and allocate authorization-free resources to the logical channels in sequence according to token bucket variables and priorities, wherein the The channel parameters of the logical channel include at least the token bucket variable and priority.

In a third aspect, an embodiment of the present invention also provides an electronic device, including:

processor, memory, communication interface, and bus; where,

The processor, the memory, and the communication interface complete mutual communication through the bus;

The communication interface is used for information transmission between communication devices of the electronic device;

The memory stores program instructions executable by the processor, and the processor calls the program instructions to perform the following methods:

When there is new data transmission, if at least one type of resource allocated by the base station is obtained, wherein the resource includes at least a resource type;

Judging whether there is an authorization-free resource among the resources, wherein the resource type of the authorization-free resource is authorization-free;

If the authorization-free resources exist, filter the logical channels corresponding to the authorization-free resources, and allocate authorization-free resources to the logical channels in turn according to the token bucket variable and priority, wherein the channel parameters of the logical channels At least include the token bucket variable and priority.

In the fourth aspect, the embodiment of the present invention also provides a computer program, including program code, and the program code is used to perform the following operations:

The processor is used for invoking logic instructions in the memory to perform the following method:

When there is new data transmission, if at least one type of resource allocated by the base station is obtained, wherein the resource includes at least a resource type;

Judging whether there is an authorization-free resource among the resources, wherein the resource type of the authorization-free resource is authorization-free;

If the authorization-free resources exist, filter the logical channels corresponding to the authorization-free resources, and allocate authorization-free resources to the logical channels in turn according to the token bucket variable and priority, wherein the channel parameters of the logical channels At least include the token bucket variable and priority.

In a fifth aspect, an embodiment of the present invention further provides a storage medium for storing the aforementioned computer program.

In the embodiment of the present invention, by dividing the resources into authorization-free resources and authorized resources, and setting the authorization-free resource indication in the channel parameters of the logical channel, the authorization-free resources can be allocated preferentially in a more reasonable manner in the resource scheduling process, so as to It meets the low-latency requirements of license-free resources, thereby increasing the efficiency of resource scheduling.

Description of drawings

FIG. 1 is a flowchart of a logical channel priority resource scheduling method according to an embodiment of the present invention;

FIG. 2 is a flow chart of another logical channel priority resource scheduling method according to an embodiment of the present invention;

FIG. 3 is a flow chart of another logical channel priority resource scheduling method according to an embodiment of the present invention;

FIG. 4 is a flowchart of another logical channel priority resource scheduling method according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a logical channel priority resource scheduling device according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Detailed ways

In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Fig. 1 is a flow chart of a logical channel priority resource scheduling method according to an embodiment of the present invention. As shown in Fig. 1, the method includes:

Step S01, when there is new data transmission, if at least one type of resource allocated by the base station is obtained, wherein the resource at least includes resource type;

When the UE has new data to be transmitted, based on the uplink resources allocated by the base station, the UE needs to decide which resources can be used for data on those logical channels and how many resources are allocated to each logical channel for data transmission.

According to the resource scheduling mechanism, for example, the authorized scheduling mode and the unlicensed scheduling mode, the UE will obtain various types of resources, wherein the resources include at least resource types. After the UE acquires at least one type of resource, the resource can be allocated to the corresponding logical channel according to the channel parameters of all logical channels.

Step S02, judging whether there are authorization-free resources among the resources, wherein the resource type of the authorization-free resources is authorization-free;

According to different resource types, the resources can be at least divided into authorization-free resources and authorized resources, wherein the resource type of the authorization-free resources is authorization-free, and the resource type of the authorized resources is authorized. When acquiring a new resource, the UE will first determine whether there is an authorization-free resource in the resource. If yes, execute step S03, otherwise, execute step S04.

Step S03: If the authorization-free resources exist, then screen the logical channels corresponding to the authorization-free resources, and allocate authorization-free resources to the logical channels in sequence according to token bucket variables and priorities, wherein the logical channels The channel parameters include at least the token bucket variable and priority.

If the UE determines that there are authorization-free resources among the obtained resources, it will filter out logical channels corresponding to the authorization-free resources according to the channel parameters of all logical channels, wherein the channel parameters include at least an indication of authorization-free resources (grantFree-RadioResource-Indication), token bucket variable and priority (priority) and the amount of data to be transmitted. The token bucket variable is a variable Bj maintained by each logical channel j. Bj is initialized to 0 when the logical channel is established, and increases by the product of the prioritized Bit Rate (prioritisedBitRate, PBR) and timeIntervalofLCP every time an LCP time interval (timeIntervalofLCP) passes. The value of Bj cannot exceed the token bucket size (bucket size). If the calculated value of Bj is greater than the corresponding token bucket capacity on the logical channel j, then set Bj to the corresponding token bucket capacity on the logical channel j. The token bucket capacity of each logical channel is the product of PBR and token bucket duration (bucketSizeDuration, BSD), where PBR, BSD and timeIntervalofLCP are channel parameters of the logical channel respectively. The setting of PBR is related to specific service QoS requirements, and the setting range can be from 0 to infinity. And if the PBR of the logical channel j is set to infinity, then the token bucket capacity Bj of the logical channel j=infinity.

When screening the logical channel corresponding to the authorization-free resource, you can specifically check the authorization-free resource indication of the channel parameter in the logical channel. If the authorization-free resource indication is true (TRUE), it is considered that the unlicensed resource stored in the logical channel is Data can be allocated license-free resources, and if the license-free resource indication is false (FALSE), the logical channel cannot be allocated license-free resources. Therefore, the logical channels whose authorization-free resource indication is true can be screened out first, and then the allocation sequence of the logical channels is sorted according to the token bucket variable and priority, and the authorization-free resources are allocated to the logical channels in sequence. Until all the data to be transmitted in the logical channel of the UE are allocated to the license-free resources, that is, the amount of data to be transmitted is 0, or the license-free resources are exhausted. At this time, if there are only authorization-free resources in the resources acquired by the UE, the scheduling ends.

In the embodiment of the present invention, when acquiring resources, the UE will first judge whether there is an authorization-free resource and allocate it to the data to be transmitted with high requirements on delay, so that resources can be allocated more reasonably in the resource scheduling process, so as to give priority to satisfying the requirement for delay. More demanding authorization-free resources, thereby increasing the efficiency of resource scheduling.

Fig. 2 is a flowchart of another logical channel priority resource scheduling method according to an embodiment of the present invention. As shown in Fig. 2, after the step S03, the method further includes:

Step S04, if there are authorized resources among the resources, allocating authorized resources to all logical channels sequentially according to the token bucket variables and priorities, wherein the resource type of the authorized resources is authorized.

If there are authorized resources in the resources besides the authorized-free resources, after the scheduling of the authorized-free resources is completed, the allocation of authorized resources to the logical channel starts. Also sort the logical channels according to the token bucket variable and priority, and then allocate authorized resources to the logical channels in sequence. Until all the data to be transmitted in the logical channel of the UE are allocated to the authorized resources or the authorized resources are exhausted.

Of course, if there is no authorization-free resource in the resources acquired by the UE at the beginning, there will be no step S03, and step S04 will be executed directly. However, in order to describe the example, in the following embodiments, only the above Step S03 comes first, and step S04 follows as an example for illustration.

After the grant resource scheduling ends, the resource scheduling process ends, and the UE generates a corresponding MAC PDU and sends data.

In the embodiment of the present invention, after acquiring resources, UE first allocates unlicensed resources that have higher requirements on time delay, and then allocates authorized resources, so that resources can be allocated more reasonably during the resource scheduling process to meet the time constraints of various data to be transmitted. delay requirements, thereby increasing the efficiency of resource scheduling.

Based on the above embodiment, further, the resources further include parameter configuration requirements, and correspondingly, the channel parameters of the logical channel also include parameter configuration information;

Correspondingly, the step S04 is specifically:

If there are authorized resources in the resources, screen the logical channels corresponding to the parameter configuration information and the parameter configuration requirements, and allocate authorized resources to the logical channels in sequence according to the token bucket variable and priority.

Since each type of data to be transmitted has different requirements for parameters such as delay and channel state, in order to allocate resources more reasonably during the resource scheduling process, the resources obtained by the UE also add parameter configuration requirements, and at the same time Parameter configuration information is added to the channel parameters of the logical channel.

At this point, if the UE has finished allocating the unlicensed resources and there are authorized resources for the resources, the UE may start to allocate authorized resources to the logical channel. It is necessary to screen out logical channels whose parameter configuration information meets the parameter configuration requirements from all logical channels, then sort the filtered logical channels according to the token bucket variable and priority, and allocate authorized resources to the logical channels in turn . Until all the data to be transmitted in the logical channel of the UE are allocated with authorized resources or the authorized resources are exhausted.

In the embodiment of the present invention, by adding parameter configuration requirements to resources, authorized resources are only allocated to logical channels whose parameter configuration information meets the parameter configuration requirements during resource scheduling, so that resources can be allocated more reasonably and effectively.

Fig. 3 is a flowchart of another logical channel priority resource scheduling method according to an embodiment of the present invention. As shown in Fig. 3, the step S03 is specifically:

Step S31, if the authorization-free resource exists, sort the logical channels satisfying the first condition according to the priority to form a first logical channel list, the first condition is that the authorization-free resource indication is true and The token bucket variable>0, wherein the channel configuration parameters of the logical channel at least include the authorization-free resource indication, token bucket variable and priority, and the authorization-free resources also include the amount of authorization-free resources to be allocated;

If the UE judges that there are authorization-free resources in the obtained resources, and the authorization-free resources also include the amount of authorization-free resources to be allocated, it needs to filter out the logic that the authorization-free resource indication in the channel parameters is true and the token bucket variable > 0 The channels are used to form the first logical channel list, and are sorted in the first logical channel list according to the priorities of the filtered logical channels, with higher priority first and lower priority last. For two logical channels with the same priority, they can be sorted randomly, or sorted according to the order in which the logical channels are established, or treated with equal opportunities, which is not specifically limited here.

Step S32: Obtain the first logical channel to be allocated sequentially according to the order of the first logical channel list, and allocate the authorization-free resource to the first logical channel to be allocated according to the token bucket variable, and update the The token bucket variable and the amount of unlicensed resources to be allocated, and at the same time delete the first logical channel to be allocated from the first logical channel list, and then obtain the next first logical channel from the first logical channel list Logical channels to be allocated until the first logical channel list is empty or the amount of unlicensed resources to be allocated is 0.

The UE will sequentially obtain the logical channels in the first logical channel list as the first logical channel to be allocated according to the sorting of the first logical channel list, and assign the first logical channel to the first logical channel according to the token bucket variable and the amount of data to be transmitted. The logical channels to be allocated are allocated license-free resources. The maximum amount of resources that can be allocated in the first logical channel to be allocated is determined by the smaller value of the token bucket variable and the amount of data to be transmitted. Of course, it also depends on the amount of unlicensed resources to be allocated in the currently described unlicensed resources. If it is sufficient, the amount of unlicensed resources allocated to the first logical channel to be allocated is the maximum amount of resources that can be allocated to the logical channel; otherwise , the amount of unlicensed resources allocated to the first to-be-allocated logical channel is the remaining amount of unallocated unlicensed resources of the unlicensed resources. Then the token bucket variable, the amount of data to be transmitted, and the amount of authorized-free resources to be allocated are subtracted from the allocated amount of authorized-free resources to become a new token bucket variable, a new amount of data to be transmitted, and a new amount of resources to be allocated. The amount of authorization-free resources. At this time, the token bucket variable can be negative. And if the PBR of the first to-be-allocated logical channel is set to infinity, that is, when its token bucket variable=infinity, when the amount of unlicensed resources to be allocated is large enough, the UE will give the first to-be-allocated All data to be transmitted in the allocated logical channel is allocated with license-free resources. After the grant-free scheduling of the first logical channel to be allocated is completed, the first logical channel to be allocated will be deleted from the first logical channel list. Then obtain the next first logical channel to be allocated from the first logical channel list to perform authorization-free resource scheduling, until the logical channels in the first logical channel list have completed the authorization-free resource scheduling or the authorization-free resources are used is exhausted, that is, the authorization-free resources to be allocated are 0.

In the embodiment of the present invention, by dividing the resources into authorization-free resources and authorized resources, and setting the authorization-free resource indication in the channel parameters of the logical channel, the authorization-free resources can be allocated preferentially in a more reasonable manner in the resource scheduling process, so as to It meets the low-latency requirements of license-free resources, thereby increasing the efficiency of resource scheduling.

Fig. 4 is a flowchart of another logical channel priority resource scheduling method according to an embodiment of the present invention. As shown in Fig. 4, after step S32, the method further includes:

Step S33, if the first logical channel list is empty and the amount of unlicensed resources to be allocated>0.

If the above-mentioned license-free resource scheduling is completed, that is, when the first logical channel list is empty, it is determined whether the license-free resources have been exhausted, that is, whether the amount of license-free resources to be allocated is 0.

Step S34, sort the logical channels satisfying the second condition according to the priority to form a second logical channel list, wherein the second condition is that the authorization-exempt resource indication is true.

When it is determined that the authorization-free resources are not exhausted, that is, the amount of the authorization-free resources to be allocated>0, the token bucket variable of the logical channel can be ignored and the logical channel whose authorization-free resource indication is true can be directly screened out, and according to their The priorities are sorted to form the second logical channel list.

Step 35: Obtain second to-be-allocated logical channels sequentially according to the ordering of the second logical channel list, allocate the license-free resources to the second to-be-allocated logical channels, and update the amount of the unlicensed resources to be allocated, and at the same time deleting the second logical channel to be allocated from the second logical channel list, and then obtaining the next second logical channel to be allocated from the second logical channel list until the second logical channel list is empty or the amount of unlicensed resources to be allocated is 0.

According to the sorting of the second logical channel list, the logical channels in it are sequentially screened as the second logical channel to be allocated, and then the remaining unallocated logical channels in the second logical channel to be allocated are given a large enough amount of unlicensed resources to be allocated. Allocate authorization-free resources for data transmission, update the amount of data to be transmitted and the amount of authorization-free resources to be allocated, and delete the second logical channel to be allocated from the second logical channel list. Then obtain the next second logical channel to be allocated from the second logical channel list, continue to allocate unlicensed resources, and so on. Until the second logical channel list is empty or the authorization-free resources are exhausted.

In the embodiment of the present invention, by dividing the resources into authorization-free resources and authorized resources, and setting the authorization-free resource indication in the channel parameters of the logical channel, the authorization-free resources can be allocated preferentially in a more reasonable manner in the resource scheduling process, so as to It meets the low-latency requirements of license-free resources, thereby increasing the efficiency of resource scheduling.

Based on the above embodiment, further, the step S04 is specifically:

Step S41, if there are authorized resources among the resources, sort the logical channels satisfying the third condition according to the priority to form a third logical channel list, wherein the third condition is that the parameter configuration information and The parameter configuration requirements correspond to the token bucket variable>0, and the authorized resources also include the amount of authorized resources to be allocated;

When the UE has completed the scheduling of the authorization-free resources and there are authorized resources in the obtained resources, the authorized resources also include the amount of authorized resources to be allocated, or the UE does not have the authorization-free resources among the initially obtained resources , the UE will sort logical channels whose parameter configuration information satisfies the parameter configuration requirement and token bucket variable>0 among all logical channels according to their priorities to form a third logical channel list.

Step S42: Obtain the third logical channel to be allocated sequentially according to the sorting of the third logical channel list, allocate authorized resources to the third logical channel to be allocated according to the token bucket variable, and update the token bucket variable and the amount of authorized resources to be allocated, and at the same time delete the third logical channel to be allocated from the third logical channel list, and then obtain the next third logical channel to be allocated from the third logical channel list channels, until the third logical channel list is empty or the amount of authorized resources to be allocated is 0;

From the third logical channel list according to sorting, the logical channels in it are sequentially obtained as the third logical channel to be allocated, and then according to the token bucket variable of the third logical channel to be allocated and the size of the amount of data to be transmitted, give The third to-be-allocated logical channel allocates authorized resources, and at the same time updates its token bucket variable, the amount of data to be transmitted, and the amount of authorized resources to be allocated of the authorized resources. The specific allocation process is the same as the process of allocating unlicensed resources on the first logical channel above, and will not be repeated here. Then delete the third to-be-allocated logical channel from the third logical channel list, and acquire the next third to-be-allocated logical channel therefrom, and allocate authorized resources to it. Until the third logical channel list is empty or the authorized resources are used up, that is, the amount of authorized resources to be allocated of the authorized resources is 0.

Step S43: If the third logical channel list is empty and the amount of authorized resources to be allocated is >0, sort the logical channels corresponding to the parameter configuration information and the parameter configuration requirements according to priority to form the first Four logical channel lists;

If the third logical channel list is empty and there are still remaining authorized resources, the logical channel whose parameter configuration information meets the parameter configuration requirements may be selected from all logical channels regardless of the variable bucket variable of the logical channel, Sorting is then performed according to priority to form a fourth logical channel list.

Step S44: Obtain the fourth logical channel to be allocated sequentially according to the order of the fourth logical channel list, allocate authorized resources to the fourth logical channel to be allocated, and update the amount of authorized resources to be allocated, and at the same time The fourth logical channel to be allocated is deleted from the fourth logical channel list, and then the next fourth logical channel to be allocated is obtained from the fourth logical channel list until the fourth logical channel list is empty or all The amount of authorized resources to be allocated is 0.

According to the sorting of the fourth logical channel list, the logical channels in the list are sequentially obtained as the fourth logical channel to be allocated, and then when the remaining authorized resources to be allocated in the authorized resources are large enough, assign the fourth logical channel to the The remaining data to be transmitted in the allocated logical channel are all allocated authorized resources, and at the same time, the fourth logical channel to be allocated is deleted from the fourth logical channel list. Then acquire the next fourth logical channel to be allocated from the fourth logical channel list until the fourth logical channel list is empty or the authorized resources are exhausted.

In the resource scheduling process in the foregoing embodiments, the following principles need to be observed:

1) If the entire Radio Link Control Service Data Unit (RLC SDU) (or partially transmitted SDU or retransmitted RLC PDU) matches the size of the remaining resources to be allocated, it should not be segmented deal with;

2) If the RLC SDU of a logical channel is segmented, the length of the segment should be maximized as much as possible to fill up the uplink resource;

3) Transfer as much data as possible

In the embodiment of the present invention, after the authorization-free resources in the logical channel are scheduled, if there are authorized resources in the resources, the authorized resources can be allocated to the logical channel, so that resource scheduling can be allocated more reasonably and efficiency can be improved.

Based on the above embodiments, further, the method further includes:

Receive RRC signaling, and set channel parameters of each logical channel according to the RRC signaling, wherein the channel parameters include at least authorization-free resource indication, priority, priority bit rate, token bucket capacity duration, and LCP time interval and available parameter set configuration indexes.

When each logical channel is established, it will receive radio resource control (Radio Resource Control, RRC) signaling sent by the base station, and the logical channel configuration information element carried in the signaling. The channel configuration parameters for the logical channel are included in the logical channel configuration information element. By configuring logical channel configuration parameters for each logical channel of the UE, the scheduling of UE uplink data is controlled. According to the RRC signaling, the channel parameters of the logical channel can be specifically set, wherein the channel parameters include at least authorization-free resource indication, priority, priority bit rate, token bucket capacity duration, LCP time interval and available Parameter set configuration index. The specific function of each parameter is as follows:

The grantFree-RadioResource-Indication (grantFree-RadioResource-Indication) is used to set whether the grantFree-RadioResource-Indication can be used for data transmission in the logical channel of the UE.

Priority (priority), used to set the priority level for the logical channel. The higher the value, the lower the priority. Considering MAC CE and data of different logical channels, the following priorities can be considered in descending order during logical channel priority processing:

data of logical channels with grantFree-RadioResource-Indication set to TRUE;

C-RNTI MAC control element or data from UL-CCCH;

BSR MAC control elements other than padding BSRs;

PHR MAC control unit;

Data of other logical channels except UL-CCCH;

Populate the BSR MAC control element.

It should be noted that the descending priority relationship here is an example. In subsequent use, it is possible to design a MAC CE with other different functions, and the present invention is not limited to the above examples.

The prioritized bit rate (prioritisedBitRate) is used to set the prioritized bit rate PBR for the logical channel.

Token bucket capacity duration (bucketSizeDuration), used to set the token bucket capacity duration BSD for the logical channel.

The LCP time interval (timeIntervalofLCP) is used to set the time interval for the UE to process the logical channel priority process. Considering that different numerologies/TTIs are supported, the timeIntervalofLCP is used to instruct the UE to process the logical channel priority process internally according to an absolute time interval.

The available parameter set configuration index information list is a set of lists containing available parameter set configuration index information, and the list contains one or more available parameter set configuration indexes.

The available parameter set configuration index (numerologiesIndex-Allowed) is used to indicate the parameter set configuration information corresponding to the index value that is allowed to be used for data transmission on the logical channel.

In addition, for the corresponding relationship between the parameter set configuration and the parameter set configuration index value, the network side will configure relevant information, such as MIB or SIB, for UEs in the cell through broadcasting. This configuration will contain one or more parameter set configuration information. Each parameter set configuration information includes parameter set index value, subcarrier spacing, time slot length or number of OFDM symbols per time slot, frequency domain resource position indication and so on.

For ease of understanding, an example of cell structure design for configuring a logical channel is given below. The logical channel configuration information element (LogicalChannelConfig IE) is used to configure the logical channel parameters. The information element includes the ul-SpecificParameters information element, and the ul-SpecificParameters information element includes the grantFree-RadioResource-Indication, priority Priority, prioritizedBitRate, token bucket capacity duration (bucketSizeDuration), LCP time interval (timeIntervalofLCP) and available parameter set configuration index information list (numerologiesIndex-AllowedInfoList) parameters. The specific parameter configuration is as follows:

The LogicalChannelConfig domain is described as follows:

grantFree-RadioResource-Indication: Indicates whether data transmission in a specific logical channel of the UE can use authorization-free resources. A value of TRUE indicates that data transmission in a specific logical channel of the UE is allowed to use unlicensed resources. A value of FALSE indicates that data transmission in a specific logical channel of the UE is not allowed to use license-free resources.

timeIntervalofLCP: Instructs the UE to process the logical channel priority process according to the time interval of timeIntervalofLCP. The unit of the value is ms, the value fourteenUT is equivalent to 14*UT, sevenUT is equivalent to 7*UT, and so on, UT is 1/14ms.

bucketSizeDuration: Token bucket capacity duration in logical channel priority. The unit of the value is ms, the value ms0dot5 is equivalent to 0.5ms, ms1 is equivalent to 1ms, and so on.

numerologiesIndex-AllowedInfoList: Indicates a list of parameter set configuration index values allowed for data transmission on a specific logical channel of the UE. When this information element is included, the index value is configured according to the parameter set allowed to be used for data transmission on a specific logical channel indicating configuration of the UE. When this information element is not included, it is considered that data transmission on a specific logical channel of the UE is allowed to use all parameter set index values configured by the network side.

numerologiesIndex-Allowed: Indicates the parameter set configuration corresponding to the index value that is allowed to be used for data transmission on a specific logical channel of the UE.

priority: Indicates the logical channel priority, the value is an integer.

prioritizedBitRate: Prioritized bit rate in logical channel priority. The unit of value is kilobytes/second. The value kBps0 is equivalent to 0kB/s, kBps8 is equivalent to 8kB/s, and so on. Infinity is an ultra-low latency service in SRB and URLLC scenarios.

For the list of available parameter set configuration index information, the list contains one or more available parameter set configuration indexes, which are used to indicate the parameters corresponding to the index values that can be used for data transmission on a specific logical channel set configuration. The network side configures the parameter set configuration and the index value corresponding to the parameter set configuration for the UE through the MIB or SIB. A specific configuration will contain one or more than one parameter set configuration information. Each parameter set configuration information includes parameter set index value, subcarrier spacing, time slot length or number of OFDM symbols per time slot, RB resource configuration and so on. The following figure shows the structure of related information elements by taking the radio resource configuration information included in the SIB as an example.

The RadioResourceConfigCommonSIB field is described as follows:

numerologiesConfigInfo: Information about configuration parameter sets.

numerologiesConfigIndex: Indicates the index value of the parameter set configuration.

subcarrierSpacingIndex: Indicates the subcarrier spacing. Different index values correspond to corresponding subcarrier spacings. For example, a value of 0 corresponds to a subcarrier spacing of 15 kHz, a value of 1 corresponds to a subcarrier spacing of 30 kHz, a value of 2 corresponds to a subcarrier spacing of 60 kHz, and so on.

slotLength: Indicates the slot length. n1 represents 1 OFDM symbol, n2 represents 2 OFDM symbols, and so on. The length of an OFDM symbol is determined by the subcarrier spacing corresponding to subcarrierSpacingIndex.

Based on the foregoing embodiments, further, the data to be transmitted that can be allocated with authorization-free resources includes at least URLLC service data and eMBB service data.

Considering the low-latency URLLC service and the eMBB service with strong burst, low transmission delay and small data packets, these two types of services can be transmitted using license-free resources. The network side controls the UE's uplink scheduling of the unlicensed resources by configuring channel parameters of different logical channels.

For the low-latency URLLC service, the channel parameters of the logical channel where the service is located are configured as follows: grantFree-RadioResource-Indication is set to TRUE, priority is set to 0, and prioritizedBitRate is set to infinity.

For eMBB services with strong burstiness, low transmission delay and small data packets, set the channel parameter configuration of the logical channel where the service is located: if the network side allows the service to use authorization-free resources, set grantFree-RadioResource-Indication is TRUE, otherwise set to FALSE. Priority priority is set to a value other than 0 (its priority is lower than the priority of URLLC business), prioritizedBitRate and bucketSizeDuration can be configured according to the actual business needs considering the capacity of the token bucket, or the prioritizedBitRate can be set to infinity.

It should be noted that, except for eMBB services with strong burstiness, low transmission delay and small data packets, when the network side sets the relevant logical channel priority parameters of the logical channels where these other eMBB services are located, If the network side is not allowed to use authorization-free resources, set grantFree-RadioResource-Indication to FALSE.

After the above parameters are configured, if the UE has the above-mentioned low-latency URLLC service to be transmitted and the eMBB service with strong burst, low transmission delay and small data packets at the same time, according to the above-mentioned logical channel priority processing process, the UE will Allocate resources for logical channels that can use grant-free resources (that is, logical channels for which grantFree-RadioResource-Indication is set to TRUE). For the logical channel where the URLLC service is located, since its configuration parameter prioritizedBitRate is set to infinity, the Bj of this logical channel is always greater than 0, and because the priority is configured as the highest priority, the logical channel where the URLLC service is located will preferentially allocate authorization-free resources. That is to say, when there are authorization-free resources, all the authorization-free resources that need to be sent on the logical channel where the URLLC service is located are allocated first, and if there are remaining authorization-free resources, then the allocation of the logical channel where the eMBB service is located resource.

In addition, it should be noted that for eMBB services with strong burstiness, low transmission delay, and small data packets, when the grantFree-RadioResource-Indication of the logical channel where the service is located is set to TRUE, not only can it use authorization-free The resources may also use uplink authorization resources that meet the condition, the condition is that the available parameter configuration information corresponding to the logical channel configuration numerologiesIndex-Allowed corresponds to the parameter configuration requirements corresponding to the resource scheduling instruction.

In the embodiment of the present invention, channel parameters are set when the logical channel is established, so that uplink resources can be allocated more reasonably in the subsequent resource scheduling process, so as to increase the efficiency of resource scheduling.

FIG. 5 is a schematic structural diagram of a logical channel priority resource scheduling device according to an embodiment of the present invention. As shown in FIG. 5 , the device includes: an acquisition module 10, a judgment module 11, and an allocation module 12, wherein:

The obtaining module 10 is used to obtain at least one type of resource allocated by the base station when there is new data transmission, wherein the resource includes at least a resource type; the judging module 11 is used to judge whether there is an exemption in the resource. Authorized resource, wherein the resource type of the authorization-free resource is authorization-free; the allocation module 12 is used to screen the logical channel corresponding to the authorization-free resource if there is the authorization-free resource, and according to the token bucket Variables and priorities in turn allocate authorization-free resources to the logical channel, wherein the channel parameters of the logical channel at least include the token bucket variable and priority.

When the UE has new data to be transmitted, the UE needs to decide, based on the uplink resources allocated by the base station, which logical channels each type of resource can use for data and how many resources each logical channel allocates for data transmission. According to the resource scheduling mechanism, such as authorized scheduling mode and authorization-free scheduling mode, etc., the acquisition module 10 will acquire various resources, wherein the resources at least include resource types. After the acquiring module 10 acquires at least one type of resources, the resources can be allocated to corresponding logical channels according to the channel parameters of all logical channels. The obtaining module 10 sends the obtained resource information to the judging module 11 , and sends the resource to the scheduling module 12 .

When acquiring a new resource, the judging module 11 will first judge whether there is an authorization-free resource in the resource. If it exists, an authorization-free allocation instruction is sent to the allocation module 12 , and if it does not exist, an authorized allocation instruction is sent to the allocation module 12 .

After the allocation module 12 receives the authorization-free allocation instruction, it needs to screen out the logical channels corresponding to the authorization-free resources according to the channel parameters of all logical channels. Specifically, you can check the authorization-free resource indication of the channel parameters in the logical channel , if the authorization-free resource indication is true (TRUE), it is considered that the data to be transmitted stored in the logical channel can be allocated an authorization-free resource, and if the authorization-free resource indication is false (FALSE), then the logical channel does not License-free resources can be allocated. Therefore, the logical channels whose authorization-free resource indication is true can be screened out first, and then the allocation sequence of the logical channels is sorted according to the token bucket variable and priority, and the authorization-free resources are allocated to the logical channels in sequence. Until all the data to be transmitted in the logical channel of the UE are allocated to the license-free resources, that is, the amount of data to be transmitted is 0, or the license-free resources are exhausted. However, if there are only authorization-free resources among the resources obtained by the UE, the scheduling ends.

The device provided by the embodiment of the present invention is used to execute the above method, and its function refers to the above method embodiment for details, and its specific method flow is not repeated here.

In the embodiment of the present invention, when the acquisition module 10 acquires resources, it will first be handed over to the judgment module 11 to judge whether there is an authorization-free resource, and the allocation module 12 will allocate it to the data to be transmitted with high delay requirements, so that in the resource scheduling process Resources can be allocated more reasonably to give priority to unlicensed resources with higher requirements on delay, thereby increasing the efficiency of resource scheduling.

FIG. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention. As shown in FIG. 6, the electronic device includes: a processor (processor) 601, a memory (memory) 602 and a bus 603;

Wherein, the processor 601 and the memory 602 complete mutual communication through the bus 603;

The processor 601 is configured to call the program instructions in the memory 602 to execute the methods provided by the above method embodiments, for example, including: when there is new data transmission, if at least one type of resource allocated by the base station is obtained, Wherein the resource includes at least a resource type; determine whether there is an authorization-free resource in the resource, wherein the resource type of the authorization-free resource is authorization-free; if there is the authorization-free resource, then screen the authorization-free resource corresponding logical channels, and sequentially allocate authorization-free resources to the logical channels according to token bucket variables and priorities, wherein the channel parameters of the logical channels at least include the token bucket variables and priorities.

Furthermore, the embodiment of the present invention discloses a computer program product, the computer program product includes a computer program stored on a non-transitory computer-readable storage medium, the computer program includes program instructions, when the program instructions are executed by the computer When executing, the computer can execute the methods provided by the above method embodiments, for example, including: when there is new data transmission, if at least one type of resource allocated by the base station is obtained, wherein the resource includes at least the resource type; Whether there is an authorization-free resource in the resource, wherein the resource type of the authorization-free resource is authorization-free; if there is the authorization-free resource, then filter the logical channel corresponding to the authorization-free resource, and according to the token bucket variable and The priority allocates authorization-free resources to the logical channel in turn, wherein the channel parameters of the logical channel include at least the token bucket variable and the priority.

Furthermore, an embodiment of the present invention provides a non-transitory computer-readable storage medium, the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions cause the computer to execute the methods provided by the above-mentioned method embodiments. The method, for example, includes: when there is new data transmission, if at least one type of resource allocated by the base station is obtained, wherein the resource includes at least a resource type; judging whether there is an authorization-free resource in the resource, wherein the authorization-free resource The type of resource is authorization-free; if the authorization-free resource exists, filter the logical channel corresponding to the authorization-free resource, and allocate the authorization-free resource to the logical channel in turn according to the token bucket variable and priority, where The channel parameters of the logical channel include at least the token bucket variable and priority.

Those of ordinary skill in the art can understand that all or part of the steps to realize the above method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

The test equipment and other embodiments of the display device described above are only illustrative, and the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physically separated. A unit can be located in one place, or it can be distributed to multiple network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. It can be understood and implemented by those skilled in the art without any creative effort.

Through the above description of the implementations, those skilled in the art can clearly understand that each implementation can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products can be stored in computer-readable storage media, such as ROM/RAM, magnetic discs, optical discs, etc., including several instructions to make a computer device (which may be a personal computer, server, or network device, etc.) execute the methods described in various embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (9)

1. A method for scheduling logical channel priority resources, comprising:

when new data transmission exists, if at least one type of resources allocated by the base station is obtained, wherein the resources at least comprise resource types;

judging whether an unlicensed resource exists in the resources, wherein the resource type of the unlicensed resource is unlicensed;

if the unlicensed resources exist, screening a logic channel corresponding to the unlicensed resources, and sequentially distributing the unlicensed resources to the logic channel according to token bucket variables and priorities, wherein channel parameters of the logic channel at least comprise the token bucket variables and priorities;

And if the unlicensed resource exists, screening a logic channel corresponding to the unlicensed resource, and sequentially distributing the unlicensed resource to the logic channel according to a token bucket variable and a priority, wherein the channel parameters of the logic channel at least comprise the token bucket variable and the priority, and specifically comprise:

if the unlicensed resource exists, ordering the logic channels meeting a first condition according to the priority to form a first logic channel list, wherein the first condition is that the unlicensed resource indication is true and the token bucket variable is >0, and the channel parameters of the logic channels at least comprise the unlicensed resource indication, the token bucket variable and the priority, and the unlicensed resource further comprises an unlicensed resource amount to be allocated;

sequentially obtaining a first logic channel to be allocated according to the ordering of the first logic channel list, allocating the unlicensed resource to the first logic channel to be allocated according to the token bucket variable, updating the token bucket variable and the unlicensed resource amount to be allocated, deleting the first logic channel to be allocated from the first logic channel list, and obtaining the next first logic channel to be allocated from the first logic channel list until the first logic channel list is empty or the unlicensed resource amount to be allocated is 0.

2. The method according to claim 1, wherein the method further comprises:

and if the authorized resources exist in the resources, sequentially distributing the authorized resources to all the logic channels according to the token bucket variable and the priority, wherein the resource type of the authorized resources is authorized.

3. The method of claim 2, wherein the resources further comprise parameter configuration requirements, and wherein the channel parameters of the logical channels correspondingly further comprise parameter configuration information;

correspondingly, if the authorized resource exists in the resources, sequentially allocating the authorized resource to all the logic channels according to the token bucket variable and the priority, wherein the method specifically comprises the following steps:

and if the authorized resources exist in the resources, screening the logic channels of which the parameter configuration information corresponds to the parameter configuration requirements, and sequentially distributing the authorized resources to the logic channels according to the token bucket variables and the priorities.

4. The method according to claim 1, wherein the method further comprises:

if the first logic channel list is empty and the to-be-allocated unlicensed resource amount is greater than 0;

ordering the logical channels meeting a second condition by the priority to form a second logical channel list, wherein the second condition is that the unlicensed resource indication is true;

Sequentially obtaining a second logic channel to be allocated according to the ordering of the second logic channel list, allocating the unlicensed resource to the second logic channel to be allocated, updating the unlicensed resource amount to be allocated, deleting the second logic channel to be allocated from the second logic channel list, and obtaining the next logic channel to be allocated from the second logic channel list until the second logic channel list is empty or the unlicensed resource amount to be allocated is 0.

5. The method of claim 3, wherein if there is an authorized resource in the resources, screening the logical channels of the parameter configuration information corresponding to the parameter configuration requirement, and sequentially allocating the authorized resource to the logical channels according to the token bucket variable and the priority, specifically:

if the authorized resources exist in the resources, sorting the logic channels meeting a third condition according to the priority to form a third logic channel list, wherein the third condition is that the parameter configuration information corresponds to the parameter configuration requirement and the token bucket variable is >0, and the authorized resources further comprise the amount of authorized resources to be allocated;

Sequentially acquiring a third logic channel to be allocated according to the ordering of the third logic channel list, allocating authorized resources to the third logic channel to be allocated according to the token bucket variable, updating the token bucket variable and the amount of authorized resources to be allocated, deleting the third logic channel to be allocated from the third logic channel list, and acquiring the next third logic channel to be allocated from the third logic channel list until the third logic channel list is empty or the amount of authorized resources to be allocated is 0;

if the third logical channel list is empty and the amount of authorized resources to be allocated is greater than 0, sorting the logical channels corresponding to the parameter configuration information and the parameter configuration requirements according to priority to form a fourth logical channel list;

sequentially obtaining a fourth logic channel to be allocated according to the ordering of the fourth logic channel list, allocating authorized resources to the fourth logic channel to be allocated, updating the amount of authorized resources to be allocated, deleting the fourth logic channel to be allocated from the fourth logic channel list, and obtaining the next fourth logic channel to be allocated from the fourth logic channel list until the fourth logic channel list is empty or the amount of authorized resources to be allocated is 0.

6. The method according to claim 1, wherein the method further comprises:

and receiving RRC signaling, and setting channel parameters of each logic channel according to the RRC signaling, wherein the channel parameters at least comprise unlicensed resource indication, priority bit rate, token bucket capacity duration, LCP time interval and available parameter set configuration index.

7. A logical channel priority resource scheduling apparatus, comprising:

the acquisition module is used for acquiring at least one type of resources allocated by the base station when new data transmission exists, wherein the resources at least comprise resource types;

the judging module is used for judging whether an unlicensed resource exists in the resources, wherein the resource type of the unlicensed resource is unlicensed;

the allocation module is used for screening a logic channel corresponding to the unlicensed resource if the unlicensed resource exists, and allocating the unlicensed resource to the logic channel in sequence according to a token bucket variable and a priority, wherein the channel parameters of the logic channel at least comprise the token bucket variable and the priority;

and if the unlicensed resource exists, screening a logic channel corresponding to the unlicensed resource, and sequentially distributing the unlicensed resource to the logic channel according to a token bucket variable and a priority, wherein the channel parameters of the logic channel at least comprise the token bucket variable and the priority, and specifically comprise:

If the unlicensed resource exists, ordering the logic channels meeting a first condition according to the priority to form a first logic channel list, wherein the first condition is that the unlicensed resource indication is true and the token bucket variable is >0, and the channel parameters of the logic channels at least comprise the unlicensed resource indication, the token bucket variable and the priority, and the unlicensed resource further comprises an unlicensed resource amount to be allocated;

sequentially obtaining a first logic channel to be allocated according to the ordering of the first logic channel list, allocating the unlicensed resource to the first logic channel to be allocated according to the token bucket variable, updating the token bucket variable and the unlicensed resource amount to be allocated, deleting the first logic channel to be allocated from the first logic channel list, and obtaining the next first logic channel to be allocated from the first logic channel list until the first logic channel list is empty or the unlicensed resource amount to be allocated is 0.

8. An electronic device comprising a memory and a processor, said processor and said memory completing communication with each other via a bus; the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of any of claims 1-6.

9. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the method according to any one of claims 1 to 6.

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