KR102355606B1 - Method and apparatus of performing scheduling request to support plurality of services efficiently - Google Patents

Abstract

The present disclosure relates to a communication technique that converges a 5G communication system for supporting a higher data rate after a 4G system with IoT technology, and a system thereof. The present invention discloses a method and apparatus for performing a scheduling request when a terminal uses a plurality of services.

Description

A method and apparatus for performing a scheduling request to efficiently support a plurality of services

The present invention relates to an operation in which a terminal requests resource allocation from a base station to perform UL transmission in a mobile communication system. More specifically, it proposes an operation regarding when the UE starts regular BSR to initiate the scheduling request transmission procedure.

Efforts are being made to develop an improved 5G communication system or pre-5G communication system in order to meet the increasing demand for wireless data traffic after commercialization of the 4G communication system. For this reason, the 5G communication system or the pre-5G communication system is called a 4G network after (Beyond 4G Network) communication system or an LTE system after (Post LTE) system.

In order to achieve a high data rate, the 5G communication system is being considered for implementation in a very high frequency (mmWave) band (eg, such as a 60 gigabyte (60 GHz) band). In order to alleviate the path loss of radio waves and increase the propagation distance of radio waves in the ultra-high frequency band, in the 5G communication system, beamforming, massive MIMO, and Full Dimensional MIMO (FD-MIMO) are used. ), array antenna, analog beam-forming, and large scale antenna technologies are being discussed.

In addition, for network improvement of the system, in the 5G communication system, an evolved small cell, an advanced small cell, a cloud radio access network (cloud RAN), and an ultra-dense network (ultra-dense network) , Device to Device communication (D2D), wireless backhaul, moving network, cooperative communication, Coordinated Multi-Points (CoMP), and interference cancellation Technological development is in progress.

In addition, in the 5G system, FQAM (Hybrid FSK and QAM Modulation) and SWSC (Sliding Window Superposition Coding), which are advanced coding modulation (Advanced Coding Modulation: ACM) methods, and FBMC (Filter Bank Multi Carrier), NOMA, which are advanced access technologies, (non orthogonal multiple access), and sparse code multiple access (SCMA) are being developed.

Meanwhile, with the recent development of a communication system, research on a method for performing a scheduling request in a next-generation communication system is being actively conducted. Accordingly, the demand for improvement of a method for performing a scheduling request in a situation in which a terminal uses a plurality of services is increasing day by day.

The 5G mobile communication system or the NR system under discussion in 3GPP provides various services such as eMBB, URLLC, and eMTC through a plurality of numerology or TTI length. In such a system, when a UE requests a UL resource from a base station when data related to a specific service is generated, an SR configuration including different scheduling request (SR) resources for each service may be applied. Accordingly, the present invention proposes an operation regarding how the SR procedure of the terminal is started when the terminal uses a plurality of services and the SR configuration for each service is applied.

The present invention for solving the above problems is a control signal processing method in a wireless communication system, the method comprising: receiving a first control signal transmitted from a base station; processing the received first control signal; and transmitting a second control signal generated based on the processing to the base station.

According to an embodiment of the present invention, it is possible to avoid a situation in which an SR transmission operation is not started by a service or logical channel having a higher priority according to the configuration of the base station even when data is generated in a service or logical channel with a lower priority. Therefore, when the base station receives the SR signal transmitted by the terminal, the base station can immediately identify the type of service that has occurred to the terminal, and can allocate a UL resource composed of a numerology or TTI length suitable for the terminal to transmit it. Through this, the terminal and the base station can use a plurality of services more efficiently in terms of UL transmission and reception.

1 illustrates a scheduling request, uplink grant, buffer status report, and uplink data transmission/reception procedure of a communication system.
2 shows examples of different scheduling request configurations.
3 shows the operation of the proposed method 1 described in the present invention.
4 shows the operation of the proposed method 2 described in the present invention.
5 shows the operation of the proposed method 3 described in the present invention.
6 shows the operation of the proposed method 4/5/6/7 described in the present invention.
7 shows the operation of the proposed method 8 described in the present invention.
8 is a diagram illustrating the structure of a terminal according to an embodiment of the present invention.
9 is a diagram illustrating a structure of a base station according to an embodiment of the present invention.
10 is a diagram showing one of operation examples of sr-ProhibitTimer proposed in the present invention (independent operation of sr-ProhibitTimer for each SR configuration).
11 is a diagram showing one of operation examples of sr-ProhibitTimer proposed in the present invention (SR configuration uses a common timer length).
12 is a diagram showing one of operation examples of sr-ProhibitTimer proposed in the present invention (when sr-ProhibitTimer is operated for each SR configuration, SR transmission is not allowed when timers of other SR configuration are activated).
13 is a diagram showing one example of operation of sr-ProhibitTimer proposed in the present invention (determining whether sr-ProhibitTimer can be ignored according to the priority of a logical channel).
14 is a diagram showing one of operation examples of dsr-TransMax and SR_COUNTER proposed in the present invention (individual counting of SR_COUNTER for each SR configuration).
15 is a diagram showing one of operation examples of dsr-TransMax and SR_COUNTER proposed in the present invention (SR_COUNTER common counting for each SR configuration).

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this case, it should be noted that in the accompanying drawings, the same components are denoted by the same reference numerals as much as possible. In addition, detailed descriptions of well-known functions and configurations that may obscure the gist of the present invention will be omitted.

In describing the embodiments in the present specification, descriptions of technical contents that are well known in the technical field to which the present invention pertains and are not directly related to the present invention will be omitted. This is to more clearly convey the gist of the present invention without obscuring the gist of the present invention by omitting unnecessary description.

For the same reason, some components are exaggerated, omitted, or schematically illustrated in the accompanying drawings. In addition, the size of each component does not fully reflect the actual size. In each figure, the same or corresponding elements are assigned the same reference numerals.

Advantages and features of the present invention, and a method for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention belongs It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

At this time, it will be understood that each block of the flowchart diagrams and combinations of the flowchart diagrams may be performed by computer program instructions. These computer program instructions may be embodied in a processor of a general purpose computer, special purpose computer, or other programmable data processing equipment, such that the instructions performed by the processor of the computer or other programmable data processing equipment are not described in the flowchart block(s). It creates a means to perform functions. These computer program instructions may also be stored in a computer-usable or computer-readable memory that may direct a computer or other programmable data processing equipment to implement a function in a particular manner, and thus the computer-usable or computer-readable memory. It is also possible that the instructions stored in the flow chart block(s) produce an article of manufacture containing instruction means for performing the function described in the flowchart block(s). The computer program instructions may also be mounted on a computer or other programmable data processing equipment, such that a series of operational steps are performed on the computer or other programmable data processing equipment to create a computer-executed process to create a computer or other programmable data processing equipment. It is also possible that instructions for performing the processing equipment provide steps for performing the functions described in the flowchart block(s).

Additionally, each block may represent a module, segment, or portion of code that includes one or more executable instructions for executing specified logical function(s). It should also be noted that in some alternative implementations it is also possible for the functions recited in blocks to occur out of order. For example, two blocks shown one after another may be performed substantially simultaneously, or the blocks may sometimes be performed in the reverse order according to a corresponding function.

At this time, the term '~ unit' used in this embodiment means software or hardware components such as FPGA or ASIC, and '~ unit' performs certain roles. However, '-part' is not limited to software or hardware. '~' may be configured to reside on an addressable storage medium or may be configured to refresh one or more processors. Accordingly, as an example, '~' indicates components such as software components, object-oriented software components, class components, and task components, and processes, functions, properties, and procedures. , subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables. The functions provided in the components and '~ units' may be combined into a smaller number of components and '~ units' or further separated into additional components and '~ units'. In addition, components and '~ units' may be implemented to play one or more CPUs in a device or secure multimedia card.

In the next generation mobile communication system, the 5th generation mobile communication system, or the NR (New Radio) system under discussion in 3GPP, a plurality of numerology or a plurality of TTI (Transmission Time Interval) or a plurality of different Communication between the terminal and the base station is performed using radio resources having physical properties. Here, radio resources having different physical properties may be distinguished by identifiers having names such as numerology index, PHY profile, or transmission profile. The present invention describes a specific operation of a scheduling request procedure for UL transmission and reception when communication is performed using a plurality of numerology or a plurality of TTIs or radio resources having a plurality of different physical properties.

1 shows a scheduling request procedure of a terminal and a base station in an LTE system. Referring to FIG. 1 in detail, (1) a terminal having data to transmit to a base station transmits an SR signal to the base station in an SR (Scheduling Request) resource allocated to it. In this case, the SR resource is generally configured in a Physical Uplink Control Channel (PUCCH). (2) The base station receiving the SR signal from the terminal allocates UL resources for UL transmission to the terminal. In this case, information on UL resources is generally transmitted through a Physical Downlink Control Channel (PDCCH). (3) The terminal transmits a Buffer Status Report (BSR) and data by using the UL resource allocated to the base station. (4) The base station receiving the BSR from the terminal allocates additional UL resources if necessary according to the amount of data included in the buffer of the terminal. (5) The terminal transmits data included in its buffer using the UL resource allocated to the base station.

Among the described operations, (1), which corresponds to the operation of the first UE, is performed when regular BSR is started internally in the UE. The LTE system stipulates such an operation as follows.

That is, the UE starts the SR procedure in the following two cases.

* Regular BSR is started and logicalChannelSR-ProhibitTimer is not working,

* In case UL resource is not allocated or regular BSR is not initiated by data of LCH (logical channel) for which logicalChannelSR-Mask is set

In addition, the LTE system stipulates the regular BSR start conditions as follows.

That is, the UE starts the regular BSR procedure in the following two cases.

* When data belonging to an LCH having a higher priority than that of the LCH to which data existing in the buffer of the current terminal belongs occurs

* When data to be transmitted occurs when there is no data in the buffer of the terminal

In the NR system based on operations defined in the LTE system in various parts, a regular BSR start condition of the NR system may be defined based on the regular BSR start condition of the LTE system described above. In addition, based on the SR start condition of the LTE system described above, the SR start condition of the NR system may be defined. However, in the LTE system, one numerology or one TTI or a radio resource having the same physical property is utilized to communicate between the terminal and the base station. Therefore, in the NR system, it is necessary to newly define how the scheduling request procedure should be performed when communication is performed using a plurality of numerology or a plurality of TTIs or radio resources having a plurality of different physical properties.

Hereinafter, for convenience of document preparation, a plurality of numerology or a plurality of TTIs or a plurality of radio resources having different physical properties are simply denoted by a plurality of TTI/numerology/resource indexes.

In terms of multiple TTI/numerology/resource indices, the NR system has the following characteristics.

* Data belonging to one LCH may be transmitted through a plurality of TTI/numerology/resource indexes.

* The base station may operate a plurality of SR configurations. In addition, each SR configuration may correspond to a specific logical channel (LCH) or logical channel group (LCG) or TTI/numerology/resource index.

Examples of such characteristics are as follows. First, an example of the relationship between the LCH and the TTI/numerology/resource index may be defined as shown in Table 1 below.

LCH (1/2/3/4) TTI Type (A/B/C/D) Correspondence (transferable/impossible) LCH 1 TTI A O TTI B O TTI C O TTI D O LCH 2 TTI A O TTI B O TTI C X TTI D X LCH 3 TTI A X TTI B X TTI C O TTI D O LCH 4 TTI A X TTI B X TTI C X TTI D O

Another example of the relationship between the LCH and the TTI/numerology/resource index may be defined as shown in Table 2 below.

LCH (1/2/3/4) TTI Type (A/B) Numerology Class (a/b) correspondence
(transferable/impossible) LCH 1 TTI A Numerology a O Numerology b O TTI B Numerology a O Numerology b X LCH 2 TTI A Numerology a O Numerology b O TTI B Numerology a X Numerology b X LCH 3 TTI A Numerology a X Numerology b X TTI B Numerology a O Numerology b O LCH 4 TTI A Numerology a X Numerology b X TTI B Numerology a X Numerology b O

In addition, an example of the relationship between the plurality of SR configurations and the LCH may be defined as shown in Table 3 below.

SR configuration (X/Y/Z) LCH (1/2/3/4/5/6/7/8) SR configuration X LCH 1, LCH 2 SR configuration Y LCH 3, LCH 4 SR configuration Z LCH 5, LCH 6, LCH 7, LCH 8

In Table 3 showing the relationship between the above SR configuration and LCH, a group may be created by collecting a plurality of LCHs corresponding to a specific SR configuration. In the present invention, this is called an SR LCH group. For example, LCH 1 and LCH 2 may be SR LCH group X, and LCH 3 and LCH 4 may be SR LCH group Y. Also, LCH 5, LCH 6, LCH 7, and LCH 8 may be SR LCH group Z.

In addition, an example of a relationship between a plurality of SR configurations and an LCG may be defined as shown in Table 4 below.

SR configuration (X/Y/Z) LCG (1/2/3/4/5/6/7/8) SR configuration X LCG 1 SR configuration Y LCG 2, LCG 3, LCG 4, LCG 5 SR configuration Z LCG 6, LCG 7, LCG 8

In Table 4 showing the relationship between the above SR configuration and LCG, a group may be created by collecting a plurality of LCGs corresponding to a specific SR configuration. In the present invention, this is called an SR LCG group. For example, LCG 1 may be SR LCH group X, and LCG 2, LCG 3, LCG 4, and LCH 4 may be SR LCH group Y. Also, LCH 6, LCH 7, and LCH 8 may be SR LCH group Z.

In addition, an example of a relationship between a plurality of SR configurations and TTI/numerology/resource index may be defined as shown in Table 5 below.

SR configuration (X/Y/Z) TTI Type (A/B) Numerology Class (a/b) SR configuration X TTI A Numerology a, numerology b SR configuration Y TTI B Numerology a SR configuration Z TTI B Numerology b

Here, the SR configuration includes time/frequency resources and conditions for which the UE transmits an SR signal. An IE (Information Element) related to SR configuration is shown in the LTE system below.

In the SchedulingRequestConfig IE above, sr-PUCCH-ResourceIndex and sr-ConfigIndex correspond to parameters indicating a time/frequency resource through which the UE transmits an SR signal. An example of setting a time/frequency resource for SR transmission through PUCCH determined by these parameters is shown in FIG. 2 .

In addition, the sr-ProhibitTimer transmitted through dsr-TransMax and other IEs corresponds to a parameter indicating when the SR signal transmission of the UE is permitted or prohibited. In the LTE system, these parameters are defined as follows.

This can be summarized as follows.

* When the MAC entity orders SR transmission to the physical layer, SR_COUNTER increases by 1 and sr-ProhibitTimer starts to operate.

* If sr-ProhibitTimer is in operation, the UE cannot command SR transmission to the physical layer.

* Even if sr-ProhibitTimer is not running, when SR_COUNTER reaches the dsr-TransMax value, the UE cannot command SR transmission to the physical layer.

- Instead, release PUCCH and SRS and do not use allocated DL and UL resources. In addition, all waiting SRs are canceled and random access is performed to the base station.

The present invention proposes a scheduling request procedure necessary for a terminal and a base station to perform UL communication using a plurality of TTI/numerology/resource indexes, and the like. To this end, the present invention assumes the following situation.

* There are 2 types of TTI: TTI A, TTI B

* There are 4 types of LCH: LCH 1, LCH 2, LCH 3, LCH 4

- Priority between LCHs: LCH 1 (highest) > LCH 2 > LCH 3 > LCH 4 (lowest)

* There are two types of SR configuration: SR configuration X, SR configuration Y

In this case, the correspondence between the LCH and the TTI may be defined as shown in Table 6 below.

LCH (1/2/3/4) TTI (A/B) LCH 1, LCH 2 Transmission possible via TTI A LCH 3, LCH 4 Transmission possible via TTI A and TTI B

In Table 6, if the correspondence between the LCH and the TTI is summarized from the viewpoint of the TTI, it can be expressed as in Table 7 below.

TTI (A/B) LCH (1/2/3/4) TTI A LCH 1, LCH 2, LCH 3, LCH 4 TTI B LCH 3, LCH 4

* The correspondence between the SR configuration and the LCH may be defined as shown in Table 8 below.

SR configuration (X/Y) LCH SR configuration X LCH 1, LCH 2 SR configuration Y LCH 3, LCH 4

In the present invention, first, it is proposed that the UE can initiate the scheduling request procedure when and under what conditions. As described above, in the LTE system, when data of a specific LCH occurs, the UE can initiate regular BSR when there is no data in the current buffer of the UE or only data of the LCH having a lower priority than the LCH that generated the data. and this leads to the initiation of the scheduling request procedure. If this rule is applied to the above situation, the UE initiates the scheduling request procedure in the following cases.

(1) When data of LCH 1 or LCH 2 or LCH 3 or LCH 4 occurs in a state where there is no data in the buffer of the terminal

A. When data of LCH 1 or LCH 2 is generated, the UE initiates regular BSR and thus initiates the SR procedure through SR configuration X.

B. When data of LCH 3 or LCH 4 is generated, the UE initiates regular BSR and thus initiates the SR procedure through SR configuration Y

(2) When data of LCH 2 (LCH 3 or LCH 4 in addition to LCH 2) is present in the buffer of the terminal, when data of LCH 1 occurs

A. When data of LCH 1 is generated, the UE initiates regular BSR and thus initiates the SR procedure through SR configuration X.

(3) When data of LCH 3 (LCH 4 in addition to LCH 3) exists in the buffer of the terminal, when data of LCH 1 or LCH 2 occurs

A. When data of LCH 1 or LCH 2 is generated, the UE initiates regular BSR and thus initiates the SR procedure through SR configuration X.

(4) When data of LCH 4 exists in the buffer of the terminal, when data of LCH 1 or LCH 2 or LCH 3 occurs

A. When data of LCH 1 or LCH 2 is generated, the UE initiates regular BSR and thus initiates the SR procedure through SR configuration X.

B. When data of LCH 3 is generated, the UE initiates regular BSR and thus initiates the SR procedure through SR configuration Y.

The reason why the base station uses a plurality of SR configurations, that is, SR configuration X and SR configuration Y, is that when the base station receives an SR signal through SR configuration X, data of LCH 1 or LCH 2 is generated to the terminal that transmitted it. This is to allocate a UL resource composed of TTI A suitable for detecting and transmitting and receiving the TTI A. In addition, when the base station receives the SR signal through SR configuration Y, it recognizes the fact that LCH 3 or LCH 4 data has occurred to the terminal that transmitted it, and allocates a UL resource composed of TTI A or TTI B suitable for transmitting and receiving it. it is for

However, in the following case, the base station operates unsuitably for the intention of operating a plurality of SR configurations.

Unlike LCH 1 and LCH 2, LCH 3 and LCH 4 can transmit and receive UL through TTI B as well as TTI A. Therefore, when data of LCH 3 or LCH 4 is generated, even if data of LCH 1 or LCH 2 already exists in the buffer of the terminal, SR transmission of the terminal through SR configuration Y should be allowed. However, according to the regular BSR start condition defined in LTE, if data of an LCH having a high priority already exists in the buffer of the terminal, the regular BSR is not started, and thus the SR is not transmitted.

In order to solve this problem, the present invention proposes a regular BSR start condition in consideration of the use of a plurality of TTI/numerology/resource indexes.

Proposal 1 according to the first embodiment operates as follows.

1. The base station provides a correspondence between the SR configuration and the LCH to the terminal.

A. As described above, this correspondence can be defined as shown in Table 9 below. The correspondence of Table 9 may be transmitted through SchedulingRequestConfig or LogicalChannelConfig among the RRC IEs.

SR configuration (X/Y/Z) LCH (1/2/3/4/5/6/7/8) SR configuration X LCH 1, LCH 2 SR configuration Y LCH 3, LCH 4 SR configuration Z LCH 5, LCH 6, LCH 7, LCH 8

2. When data is generated in a specific LCH, the UE checks the LCH corresponding to the same SR configuration as the corresponding LCH.

A. For example, when data is generated in LCH 1, it is confirmed that LCHs corresponding to SR configuration X are LCH 1 and LCH 2.

B. Also, when data of LCH 8 is generated, it is confirmed that LCHs corresponding to SR configuration Z are LCH 5, LCH 6, LCH 7, and LCH 8.

3. The UE compares (a) the priority of the LCH in which data is generated and (b) the priority of the LCH in which data exists in the buffer of the UE among the LCHs corresponding to the same SR configuration checked in step 2.

A. If the priority of the LCH in which data is generated, that is, (a) is higher than the priority of the LCH in which data exists in the buffer of the terminal among LCHs corresponding to the same SR configuration, that is, (b), the terminal uses a regular BSR start

i. The initiated regular BSR initiates an SR transmission procedure through an SR configuration corresponding to an LCH in which data is generated.

ii. As an example, consider a case in which priority is high in the order of LCH 1, LCH 2, LCH 3, LCH 4, LCH 5, LCH 6, LCH 7, and LCH 8. And consider the case where data is generated in LCH 1. LCH 1 corresponds to SR configuration X, and LCH 2 also corresponds to SR configuration X. At this time, if data of LCH2 already exists in the buffer of the UE, the priority of LCH 1 is higher than that of LCH 2, so the UE initiates regular BSR. And the regular BSR initiated in this way initiates an SR transmission procedure through SR configuration X.

iii. Here, the UE does not consider an LCH other than the LCH corresponding to the same SR configuration as the LCH in which the data is generated. As in the previous example, when data is generated in LCH 1, LCH 3, LCH 4, LCH 5, LCH 6, LCH 7, and LCH 8 except for LCH 2 do not affect whether the UE starts regular BSR.

B. If the priority of the LCH in which data is generated, that is, (a), is equal to or lower than the priority of the LCH in which data exists in the buffer of the current terminal among LCHs corresponding to the same SR configuration, that is, (b), the terminal is Do not initiate regular BSR.

i. As an example, consider a case in which priority is high in the order of LCH 1, LCH 2, LCH 3, LCH 4, LCH 5, LCH 6, LCH 7, and LCH 8. And consider the case where data is generated in LCH 2. LCH 2 corresponds to SR configuration X, and LCH 1 also corresponds to SR configuration X. At this time, if data of LCH1 already exists in the buffer of the UE, the priority of LCH 2 is lower than that of LCH 1, so the UE does not initiate regular BSR.

ii. Here, the UE does not consider an LCH other than the LCH corresponding to the same SR configuration as the LCH in which the data is generated. As in the previous example, when data is generated in LCH 2, LCH 3, LCH 4, LCH 5, LCH 6, LCH 7, and LCH 8 except for LCH 1 do not affect whether the UE starts regular BSR.

C. If the data of the LCH corresponding to the same SR configuration as the LCH in which the data is generated does not exist in the current buffer of the UE, the UE initiates a regular BSR.

i. The initiated regular BSR initiates an SR transmission procedure through an SR configuration corresponding to an LCH in which data is generated.

ii. As an example, consider a case in which priority is high in the order of LCH 1, LCH 2, LCH 3, LCH 4, LCH 5, LCH 6, LCH 7, and LCH 8. And consider the case where data is generated in LCH 8. LCH 8 corresponds to SR configuration Z, and LCH 5, LCH 6, and LCH 7 also correspond to SR configuration Z. At this time, if the data of LCH 5, LCH 6, and LCH 7 do not exist in the buffer of the UE, the UE initiates a regular BSR. And the regular BSR initiated in this way initiates an SR transmission procedure through SR configuration Z.

iii. Here, the UE does not consider an LCH other than the LCH corresponding to the same SR configuration as the LCH in which the data is generated. As in the previous example, when data is generated in LCH 8, LCH 1, LCH 2, LCH 3, and LCH 4 except for LCH 5, LCH 6, and LCH 7 do not affect whether the UE starts regular BSR.

In the above, the operation of the proposed method 1 according to the first embodiment has been described.

Next, the proposed method 2 according to the second embodiment will be described.

1. The base station provides a correspondence between the SR configuration and the LCH to the terminal.

A. As described above, an example of such a correspondence may be defined as shown in Table 10 below. This correspondence may be transmitted through SchedulingRequestConfig or LogicalChannelConfig among the RRC IEs.

SR configuration (X/Y/Z) LCH (1/2/3/4/5/6/7/8) SR configuration X LCH 1, LCH 2 SR configuration Y LCH 3, LCH 4 SR configuration Z LCH 5, LCH 6, LCH 7, LCH 8

2. In addition, the base station provides the terminal with an LCH list that can initiate regular BSR regardless of the priority between LCHs. For convenience, these LCHs are referred to as exceptional LCHs.

A. An example of such a list may be defined as shown in Table 11 below. This may be transmitted through SchedulingRequestConfig or LogicalChannelConfig among the RRC IEs.

Exceptional LCH LCH 3, LCH 4, LCH 8

3. When data is generated from a specific LCH, the UE checks whether the LCH belongs to the exceptional LCH provided by the base station.

A. If the LCH in which data is generated does not correspond to the exceptional LCH, the UE compares (c) the priority of the LCH in which the data is generated and (d) the priority of the LCH in which data is present in the UE's buffer.

i. If the priority of the LCH in which data is generated, that is, (c), is higher than the priority of the LCH in which data exists in the buffer of the current terminal, that is, (d), the terminal initiates regular BSR. The regular BSR initiated in this way initiates the SR transmission procedure through the SR configuration corresponding to the LCH in which the data is generated.

(One). As an example, consider a case in which priority is high in the order of LCH 1, LCH 2, LCH 3, LCH 4, LCH 5, LCH 6, LCH 7, and LCH 8. And consider the case where data is generated in LCH 5. At this time, if only data of LCH 6, LCH 7, or LCH 8 exists in the buffer of the terminal, the priority of LCH 5 is higher than the priority of LCH in which data exists in the current buffer, so the terminal starts regular BSR. The regular BSR initiated in this way initiates an SR transmission procedure through SR configuration Z corresponding to LCH 5.

ii. If the priority of the LCH in which data is generated, that is, (c), is equal to or lower than the priority of the LCH in which data is present in the buffer of the terminal, that is, (d), the terminal does not initiate regular BSR.

(One). As an example, consider a case in which priority is high in the order of LCH 1, LCH 2, LCH 3, LCH 4, LCH 5, LCH 6, LCH 7, and LCH 8. And consider the case where data is generated in LCH 5. At this time, if data of LCH 1 or LCH 2 or LCH 3 or LCH 4 or LCH 5 exists in the buffer of the terminal, the priority of LCH 5 is equal to or lower than the priority of LCH in which data is present in the buffer, so the terminal is regular Do not initiate BSR.

iii. If there is no data in the current buffer of the UE, the UE initiates regular BSR. The regular BSR initiated in this way initiates the SR transmission procedure through the SR configuration corresponding to the LCH in which the data is generated.

(One). As an example, consider a case in which priority is high in the order of LCH 1, LCH 2, LCH 3, LCH 4, LCH 5, LCH 6, LCH 7, and LCH 8. And consider the case where data is generated in LCH 5. At this time, if there is no data in the buffer of the UE, the UE initiates regular BSR. The regular BSR initiated in this way initiates an SR transmission procedure through SR configuration Z corresponding to LCH 5.

B. If the LCH in which the data is generated corresponds to the exceptional LCH, the UE initiates the regular BSR regardless of the priority between the LCHs. The regular BSR initiated in this way initiates the SR transmission procedure through the SR configuration corresponding to the LCH in which the data is generated.

(One). As an example, consider a case in which priority is high in the order of LCH 1, LCH 2, LCH 3, LCH 4, LCH 5, LCH 6, LCH 7, and LCH 8. And consider the case where data is generated in LCH 4. LCH 4 corresponds to exceptional LCH. Therefore, even if data of LCH 1, LCH 2, or LCH 3 having a higher priority than LCH 4 exists in the current buffer of the UE, the UE initiates the regular BSR. The regular BSR initiated in this way initiates an SR transmission procedure through SR configuration Y corresponding to LCH 4.

The operation of the proposed method 2 according to the second embodiment has been described above.

Next, the operation of the proposed method 3 according to the third embodiment will be described.

1. The base station provides a correspondence between the SR configuration and the LCH to the terminal.

A. As described above, an example of such a correspondence may be defined as shown in Table 12 below. This correspondence may be transmitted through SchedulingRequestConfig or LogicalChannelConfig among the RRC IEs.

SR configuration (X/Y/Z) LCH (1/2/3/4/5/6/7/8) SR configuration X LCH 1, LCH 2 SR configuration Y LCH 3, LCH 4 SR configuration Z LCH 5, LCH 6, LCH 7, LCH 8

2. In addition, the base station provides the terminal with a list of SR configurations to which LCHs capable of initiating regular BSR are associated regardless of the priority between LCHs. For convenience, this SR configuration is called exceptional SR configuration.

A. An example of such a list may be defined as shown in Table 13 below. This may be transmitted through SchedulingRequestConfig among the RRC IEs.

Exceptional SR configuration SR configuration Y

3. When data is generated in a specific LCH, the UE checks the SR configuration corresponding to the LCH and checks whether the SR configuration belongs to the exceptional SR configuration.

A. If the LCH in which data is generated does not correspond to the exception SR configuration, the UE compares (e) the priority of the LCH in which the data is generated and (f) the priority of the LCH in which data is present in the buffer of the UE.

i. If the priority of the LCH in which data is generated, ie, (e), is higher than the priority of the LCH in which data exists in the buffer of the current terminal, ie, (f), the UE initiates regular BSR. The regular BSR initiated in this way initiates the SR transmission procedure through the SR configuration corresponding to the LCH in which the data is generated.

(One). As an example, consider a case in which priority is high in the order of LCH 1, LCH 2, LCH 3, LCH 4, LCH 5, LCH 6, LCH 7, and LCH 8. And consider the case where data is generated in LCH 5. LCH 5 corresponds to SR configuration Z and SR configuration Z does not correspond to exceptional SR configuration. Therefore, if only data of LCH 6, LCH 7, or LCH 8 exists in the buffer of the UE, the priority of LCH 5 is higher than the priority of LCH in which data is present in the buffer, so the UE initiates regular BSR. The regular BSR initiated in this way initiates an SR transmission procedure through SR configuration Z corresponding to LCH 5.

ii. If the priority of the LCH in which data is generated, that is, (e), is equal to or lower than the priority of the LCH in which data exists in the buffer of the current terminal, that is, (f), the terminal does not initiate regular BSR.

(One). As an example, consider a case in which priority is high in the order of LCH 1, LCH 2, LCH 3, LCH 4, LCH 5, LCH 6, LCH 7, and LCH 8. And consider the case where data is generated in LCH 5. LCH 5 corresponds to SR configuration Z and SR configuration Z does not correspond to exceptional SR configuration. Therefore, if data of LCH 1 or LCH 2 or LCH 3 or LCH 4 or LCH 5 exists in the buffer of the terminal, the priority of LCH 5 is equal to or lower than the priority of LCH in which data is present in the buffer, so the terminal is regular Do not initiate BSR.

iii. If there is no data in the current buffer of the UE, the UE initiates regular BSR. The regular BSR initiated in this way initiates the SR transmission procedure through the SR configuration corresponding to the LCH in which the data is generated.

(One). As an example, consider a case in which priority is high in the order of LCH 1, LCH 2, LCH 3, LCH 4, LCH 5, LCH 6, LCH 7, and LCH 8. And consider the case where data is generated in LCH 5. LCH 5 corresponds to SR configuration Z and SR configuration Z does not correspond to exceptional SR configuration. Therefore, if there is no data in the buffer of the UE, the UE initiates regular BSR. The regular BSR initiated in this way initiates an SR transmission procedure through SR configuration Z corresponding to LCH 5.

B. If the LCH in which the data is generated corresponds to the exception SR configuration, the UE initiates the regular BSR regardless of the priority between the LCHs. The regular BSR initiated in this way initiates the SR transmission procedure through the exceptional SR configuration corresponding to the LCH in which the data is generated.

(One). As an example, consider a case in which priority is high in the order of LCH 1, LCH 2, LCH 3, LCH 4, LCH 5, LCH 6, LCH 7, and LCH 8. And consider the case where data is generated in LCH 4. LCH 4 corresponds to SR configuration Y and SR configuration Y corresponds to exceptional SR configuration. Therefore, even if data of LCH 1, LCH 2, or LCH 3 having a higher priority than LCH 4 exists in the current buffer of the UE, the UE initiates the regular BSR. The regular BSR initiated in this way initiates an SR transmission procedure through SR configuration Y, which is an exceptional SR configuration corresponding to LCH 4.

In the above, the operation of the proposed method 3 according to the third embodiment has been described.

Hereinafter, the proposed method 4 according to the fourth embodiment will be described.

1. The base station provides a correspondence between the LCH and the TTI/numerology/resource index to the terminal.

A. As described above, an example of such a correspondence may be defined as shown in Table 14 below. Such a correspondence may be transmitted through LogicalChannelConfig among the RRC IEs.

LCH (1/2/3/4) TTI Type (A/B) Numerology Class (a/b) correspondence
(transferable/impossible) LCH 1 TTI A Numerology a O Numerology b O TTI B Numerology a O Numerology b X LCH 2 TTI A Numerology a O Numerology b O TTI B Numerology a X Numerology b X LCH 3 TTI A Numerology a X Numerology b X TTI B Numerology a O Numerology b O LCH 4 TTI A Numerology a X Numerology b X TTI B Numerology a X Numerology b O

2. The base station provides a correspondence between the SR configuration and the LCH to the terminal.

A. As described above, an example of such a correspondence may be defined as shown in Table 15 below. This correspondence may be transmitted through SchedulingRequestConfig or LogicalChannelConfig among the RRC IEs.

SR configuration (X/Y/Z) LCH (1/2/3/4/5/6/7/8) SR configuration X LCH 1, LCH 2 SR configuration Y LCH 3, LCH 4 SR configuration Z LCH 5, LCH 6, LCH 7, LCH 8

3. In addition, the base station provides a list of TTIs in which this operation is allowed so that regular BSR can be initiated regardless of the priority between LCHs when data is generated on LCHs that can be transmitted and received through a specific TTI. For convenience, these TTIs are called exceptional TTIs.

A. An example of such a list is shown in Table 16 below. This may be transmitted through an RRC IE or the like.

Exceptional TTI TTI B

4. When data is generated in a specific LCH, the UE checks the TTI through which data of the corresponding LCH can be transmitted/received, and checks whether an exceptional TTI exists among them.

A. If the LCH in which data is generated cannot use exceptional TTI, the UE compares the priority of the LCH in which data is generated with the priority of the LCH in which data is present in the UE's buffer.

i. If the priority of the LCH in which data is generated is higher than the priority of the LCH in which data exists in the buffer of the current terminal, the terminal initiates regular BSR. The regular BSR initiated in this way initiates the SR transmission procedure through the SR configuration corresponding to the LCH in which the data is generated.

ii. If the priority of the LCH in which data is generated is equal to or lower than the priority of the LCH in which data exists in the buffer of the current terminal, the terminal does not initiate regular BSR.

iii. If there is no data in the current buffer of the UE, the UE initiates regular BSR. The regular BSR initiated in this way initiates the SR transmission procedure through the SR configuration corresponding to the LCH in which the data is generated.

B. If the LCH in which the data is generated can use the exception TTI, the UE initiates the regular BSR regardless of the priority between the LCHs. The regular BSR initiated in this way initiates the SR transmission procedure through the SR configuration corresponding to the LCH in which the data is generated.

The operation of the proposed method 4 according to the fourth embodiment has been described above.

Next, the operation of the proposed method 5 according to the fifth embodiment will be described.

1. The base station provides a correspondence between the LCH and the TTI/numerology/resource index to the terminal.

A. This may be transmitted through LogicalChannelConfig among the RRC IEs.

2. The base station provides a correspondence between the SR configuration and the LCH to the terminal.

A. This may be transmitted through SchedulingRequestConfig or LogicalChannelConfig among the RRC IEs.

3. In addition, the base station provides the numerology list in which this operation is allowed in order to enable the UE to initiate regular BSR regardless of the priority between LCHs when data is generated in the LCH that can be transmitted and received through a specific numerology. For convenience, this numerology is called exceptional numerology.

A. An example of such a list may be defined as shown in Table 17 below. Such a list may be transmitted through an RRC IE or the like.

Exceptional numerology Numerology b

4. When data is generated in a specific LCH, the UE checks the numerology in which data of the corresponding LCH can be transmitted/received, and checks whether exceptional numerology exists among them.

A. If the LCH in which data is generated cannot use exceptional numerology, the UE compares the priority of the LCH where the data is generated with the priority of the LCH in which the data exists in the UE's buffer.

i. If the priority of the LCH in which data is generated is higher than the priority of the LCH in which data exists in the buffer of the current terminal, the terminal initiates regular BSR. The regular BSR initiated in this way initiates the SR transmission procedure through the SR configuration corresponding to the LCH in which the data is generated.

ii. If the priority of the LCH in which data is generated is equal to or lower than the priority of the LCH in which data exists in the buffer of the current terminal, the terminal does not initiate regular BSR.

iii. If there is no data in the current buffer of the UE, the UE initiates regular BSR. The regular BSR initiated in this way initiates the SR transmission procedure through the SR configuration corresponding to the LCH in which the data is generated.

B. If the LCH in which data is generated can use exception numerology, the UE initiates regular BSR regardless of the priority between LCHs. The regular BSR initiated in this way initiates the SR transmission procedure through the SR configuration corresponding to the LCH in which the data is generated.

The operation of the proposed method 5 according to the fifth embodiment has been described above.

Next, the operation of the proposed method 6 according to the sixth embodiment will be described.

1. The base station provides a correspondence between the LCH and the TTI/numerology/resource index to the terminal.

A. An example of such a correspondence may be defined as shown in Table 18 below. Such a correspondence may be transmitted through LogicalChannelConfig among the RRC IEs.

LCH (1/2/3/4) Resource index type (i/j/k) Correspondence (transferable/impossible) LCH One Resource index i O Resource index j X Resource index k X LCH 2 Resource index i X Resource index j O Resource index k X LCH 3 Resource index i X Resource index j X Resource index k O LCH 4 Resource index i O Resource index j O Resource index k X

2. The base station provides a correspondence between the SR configuration and the LCH to the terminal.

A. This may be transmitted through SchedulingRequestConfig or LogicalChannelConfig among the RRC IEs.

3. In addition, the base station provides a resource index list in which this operation is allowed in order to enable the UE to initiate regular BSR regardless of the priority between LCHs when data occurs in the LCH that can be transmitted and received through a specific resource index. For convenience, this resource index is called an exceptional resource index.

A. An example of such a list may be defined as shown in Table 19 below. Such a list may be transmitted through an RRC IE or the like.

Exceptional resource index Resource index j

4. When data is generated in a specific LCH, the UE checks the resource index through which data of the corresponding LCH can be transmitted/received, and checks whether an exceptional resource index exists among them.

A. If the LCH in which data is generated cannot use the exceptional resource index, the UE compares the priority of the LCH in which data is generated with the priority of the LCH in which data is present in the UE's buffer.

i. If the priority of the LCH in which data is generated is higher than the priority of the LCH in which data exists in the buffer of the current terminal, the terminal initiates regular BSR. The regular BSR initiated in this way initiates the SR transmission procedure through the SR configuration corresponding to the LCH in which the data is generated.

ii. If the priority of the LCH in which data is generated is equal to or lower than the priority of the LCH in which data exists in the buffer of the current terminal, the terminal does not initiate regular BSR.

iii. If there is no data in the current buffer of the UE, the UE initiates regular BSR. The regular BSR initiated in this way initiates the SR transmission procedure through the SR configuration corresponding to the LCH in which the data is generated.

B. If the LCH in which data is generated can use the exception resource index, the UE initiates regular BSR regardless of the priority between LCHs. The regular BSR initiated in this way initiates the SR transmission procedure through the SR configuration corresponding to the LCH in which the data is generated.

The operation of the proposed method 6 according to the sixth embodiment has been described above.

Next, the operation of the proposed method 7 according to the seventh embodiment will be described.

1. The base station provides a correspondence between the LCH and the TTI/numerology/resource index to the terminal.

A. As described above, an example of such a correspondence may be defined as shown in Table 20 below. Such a correspondence may be transmitted through LogicalChannelConfig among the RRC IEs.

LCH (1/2/3/4) TTI Type (A/B) Numerology Class (a/b) correspondence
(transferable/impossible) LCH 1 TTI A Numerology a O Numerology b O TTI B Numerology a O Numerology b X LCH 2 TTI A Numerology a O Numerology b O TTI B Numerology a X Numerology b X LCH 3 TTI A Numerology a X Numerology b X TTI B Numerology a O Numerology b O LCH 4 TTI A Numerology a X Numerology b X TTI B Numerology a X Numerology b O

2. The base station provides a correspondence between the SR configuration and the LCH to the terminal.

A. As described above, an example of such a correspondence may be defined as shown in Table 21 below. This correspondence may be transmitted through SchedulingRequestConfig or LogicalChannelConfig among the RRC IEs.

SR configuration (X/Y/Z) LCH (1/2/3/4/5/6/7/8) SR configuration X LCH 1, LCH 2 SR configuration Y LCH 3, LCH 4 SR configuration Z LCH 5, LCH 6, LCH 7, LCH 8

3. In addition, in order for the base station to initiate regular BSR regardless of the priority between LCHs when data occurs in the LCH that can be transmitted and received through a specific TTI and a specific numerology, the TTI and numerology combination in which this operation is allowed provide a list. For convenience, this combination of TTI and numerology is called exceptional TTI/numerology.

A. An example of such a list may be defined as shown in Table 22 below. Such a list may be transmitted through an RRC IE or the like.

Exceptional TTI /numerology (TTI A, numerology b)
(TTI B, numerology a)

4. When data is generated in a specific LCH, the UE checks the combination of TTI and numerology in which data of the corresponding LCH can be transmitted/received, and checks whether exceptional TTI/numerology exists among them.

A. If the LCH in which data is generated cannot use exceptional TTI/numerology, the UE compares the priority of the LCH in which data is generated with the priority of the LCH in which data is present in the UE's buffer.

i. If the priority of the LCH in which data is generated is higher than the priority of the LCH in which data exists in the buffer of the current UE, the UE initiates regular BSR. The regular BSR initiated in this way initiates the SR transmission procedure through the SR configuration corresponding to the LCH in which the data is generated.

ii. If the priority of the LCH in which data is generated is equal to or lower than the priority of the LCH in which data exists in the buffer of the current terminal, the terminal does not initiate regular BSR.

iii. If there is no data in the current buffer of the UE, the UE initiates regular BSR. The regular BSR initiated in this way initiates the SR transmission procedure through the SR configuration corresponding to the LCH in which the data is generated.

B. If the LCH in which data is generated can use exception TTI/numerology, the UE initiates regular BSR regardless of the priority between LCHs. The regular BSR initiated in this way initiates the SR transmission procedure through the SR configuration corresponding to the LCH in which the data is generated.

The operation of the proposed method 7 according to the seventh embodiment has been described above.

Next, the proposed method 8 according to the eighth embodiment will be described.

1. The base station provides a correspondence between the LCH and the TTI/numerology/resource index to the terminal.

A. As described above, an example of such a correspondence may be defined as shown in Table 23 below. This may be transmitted through LogicalChannelConfig among the RRC IEs.

LCH (1/2/3/4) TTI Type (A/B) Numerology Class (a/b) correspondence
(transferable/impossible) LCH 1 TTI A Numerology a O Numerology b O TTI B Numerology a O Numerology b X LCH 2 TTI A Numerology a O Numerology b O TTI B Numerology a X Numerology b X LCH 3 TTI A Numerology a X Numerology b X TTI B Numerology a O Numerology b O LCH 4 TTI A Numerology a X Numerology b X TTI B Numerology a X Numerology b O

2. The base station provides a correspondence between the SR configuration and the LCH to the terminal.

A. As described above, an example of such a correspondence may be defined as shown in Table 24 below. This correspondence may be transmitted through SchedulingRequestConfig or LogicalChannelConfig among the RRC IEs.

SR configuration (X/Y/Z) LCH (1/2/3/4/5/6/7/8) SR configuration X LCH 1, LCH 2 SR configuration Y LCH 3, LCH 4 SR configuration Z LCH 5, LCH 6, LCH 7, LCH 8

3. In addition, in order for the base station to initiate regular BSR regardless of priorities between LCHs when data occurs in an LCH in which the maximum value of the TTI length transmittable to the terminal is smaller than a specific value, the maximum TTI allowed for this operation Provides a limit value for the length. For convenience, these values are called TTImax,bound.

A. Examples of these values may be defined as shown in Table 25 below. This value may be transmitted through an RRC IE or the like.

TTImax, bound [X] ms

4. When data is generated in a specific LCH, the UE checks the maximum value of the TTI length at which data of the corresponding LCH can be transmitted/received, and checks whether the value is smaller than the TTImax,bound value.

A. If the maximum value of the TTI length that can be used by the LCH in which the data is generated is greater than the TTImax,bound value, the UE compares the priority of the LCH where the data is generated with the priority of the LCH in which the data is present in the buffer of the UE.

i. If the priority of the LCH in which data is generated is higher than the priority of the LCH in which data exists in the buffer of the current UE, the UE initiates regular BSR. The regular BSR initiated in this way initiates the SR transmission procedure through the SR configuration corresponding to the LCH in which the data is generated.

ii. If the priority of the LCH in which data is generated is equal to or lower than the priority of the LCH in which data exists in the buffer of the current terminal, the terminal does not initiate regular BSR.

iii. If there is no data in the current buffer of the UE, the UE initiates regular BSR. The regular BSR initiated in this way initiates the SR transmission procedure through the SR configuration corresponding to the LCH in which the data is generated.

B. If the maximum value of the TTI length usable by the LCH in which data is generated is smaller than the TTImax,bound value, the UE initiates regular BSR regardless of the priority between LCHs. The regular BSR initiated in this way initiates the SR transmission procedure through the SR configuration corresponding to the LCH in which the data is generated.

The operation of the proposed method 8 according to the eighth embodiment has been described above.

Next, an sr-ProhibitTimer used in the SR procedure according to another embodiment of the present invention will be described. In general, the operation of sr-ProhibitTimer in LTE in which one terminal has one SR configuration is as follows.

That is, if the sr-ProhibitTimer is operating, the UE cannot request SR signal transmission from the physical layer. And when the UE requests SR signal transmission from the physical layer, sr-ProhibitTimer is activated. Therefore, sr-ProhibitTimer serves to control the time interval between consecutive SR signal transmissions to be at least sr-ProhibitTimer.

In the present invention, in order to support UL communication through a plurality of TTI/numerology/resource indexes, a situation in which the base station provides a plurality of SR configurations to the terminal is considered. In this situation, sr-ProhibitTimer may be set as follows.

* Each SR configuration configured for the terminal operates an independent sr-ProhibitTimer.

* Even when multiple SR configurations are provided to a UE, one sr-ProhibitTimer is operated per UE.

First, let's look at the operation of the terminal when each SR configuration configured for the terminal operates an independent sr-ProhibitTimer. As an example, it is assumed that the UE has two SR configurations, ie, SR configuration X and SR configuration Y, and each SR configuration operates sr-ProhibitTimer-X and sr-ProhibitTimer-Y, respectively. In this case, the terminal operates as follows.

(1) Data is generated in the LCH (or TTI/numerology/resource index) corresponding to SR configuration X, and the regular BSR start condition is satisfied. Accordingly, SR transmission through SR configuration X is started.

(2) The terminal checks whether sr-ProhibitTimer-X operates.

A. If sr-ProhibitTimer-X is in operation, the UE cannot request SR signal transmission from the physical layer.

B. If sr-ProhibitTimer-X is not in operation, after checking the SR_COUNTER condition, if it is satisfied, the SR signal transmission can be requested from the physical layer.

i. At this time, the terminal operates sr-ProhibitTimer-X.

(3) Data was generated in the LCH (or TTI/numerology/resource index) corresponding to SR configuration Y, and the regular BSR start condition was satisfied. Accordingly, SR transmission through SR configuration Y was started.

(4) The terminal checks whether sr-ProhibitTimer-Y operates.

A. If sr-ProhibitTimer-Y is in operation, the UE cannot request SR signal transmission from the physical layer.

B. If sr-ProhibitTimer-Y is not in operation, SR_COUNTER condition is checked and if it is satisfied, SR signal transmission can be requested from the physical layer.

i. At this time, the terminal operates sr-ProhibitTimer-Y.

In this way, if each SR configuration configured for the UE operates an independent sr-ProhibitTimer, sr-ProhibitTimer-X only affects the SR procedure in SR configuration X, and sr-ProhibitTimer-Y is the SR procedure in SR configuration Y. affects only That is, sr-ProhibitTimer-X does not affect the SR procedure in SR configuration Y, and sr-ProhibitTimer-Y does not affect the SR procedure in SR configuration X.

An example of an operation of a terminal when each SR configuration configured in the terminal operates an independent sr-ProhibitTimer is shown in [Fig. 10]. Consider a case where the terminal receives (eMBB SR) configuration for the eMBB service or a corresponding logical channel from the base station and also receives (URLLC SR) configuration for the URLLC service or the corresponding logical channel. Here, let sr-ProhibitTimer of eMBB SR be TeMBB and sr-ProhibitTimer of URLLC SR be TURLLC. Then, when the eMBB SR and the URLLC SR operate an independent sr-ProhibitTimer, the UE may transmit the SR as shown in FIG. 10 . That is, the URLLC SR may be transmitted during the TeMBB operation and the eMBB SR may be transmitted during the TURLLC operation. In [FIG. 10], an arrow indicates an instruction to transmit the SR from the MAC layer to the PHY layer.

Next, let's look at the operation of the terminal when operating one sr-ProhibitTimer per terminal even if the terminal has a plurality of SR configurations. As an example, it is assumed that the UE has two SR configurations, ie, SR configuration X and SR configuration Y, and operates one sr-ProhibitTimer. In this case, the terminal operates as follows.

(1) Data is generated in the LCH (or TTI/numerology/resource index) corresponding to SR configuration X, and the regular BSR start condition is satisfied. Accordingly, SR transmission through SR configuration X is started.

(2) The terminal checks whether sr-ProhibitTimer is operating.

A. If sr-ProhibitTimer is in operation, the UE cannot request SR signal transmission from the physical layer.

B. If sr-ProhibitTimer is not in operation, after checking the SR_COUNTER condition, if it is satisfied, the SR signal transmission can be requested from the physical layer.

i. At this time, the terminal operates sr-ProhibitTimer.

(3) Data was generated in the LCH (or TTI/numerology/resource index) corresponding to SR configuration Y, and the regular BSR start condition was satisfied. Accordingly, SR transmission through SR configuration Y was started.

(4) The terminal checks whether sr-ProhibitTimer operates.

A. If sr-ProhibitTimer is in operation, the UE cannot request SR signal transmission from the physical layer.

B. If sr-ProhibitTimer is not in operation, after checking the SR_COUNTER condition, if it is satisfied, the SR signal transmission can be requested from the physical layer.

i. At this time, the terminal operates sr-ProhibitTimer.

As such, even if the UE has a plurality of SR configurations, if one sr-ProhibitTimer is operated per UE, the sr-ProhibitTimer affects both the SR procedure in SR configuration X and the SR procedure in SR configuration Y. That is, regardless of the SR procedure in any SR configuration, the time interval between consecutive SR signal transmissions is at least sr-ProhibitTimer.

Even if the terminal has a plurality of SR configurations, an example of an operation of the terminal when operating one sr-ProhibitTimer per terminal is shown in FIG. 11 . Consider a case where the terminal receives (eMBB SR) configuration for the eMBB service or a corresponding logical channel from the base station and also receives (URLLC SR) configuration for the URLLC service or the corresponding logical channel. Here, it is assumed that sr-ProhibitTimer of eMBB SR and sr-ProhibitTimer of URLLC SR are the same as TCommon. If so, the eMBB SR and the URLLC SR may transmit the SR as shown in [FIG. 11] using a common sr-ProhibitTimer. That is, eMBB SR and URLLC SR cannot be transmitted during TCommon operation, and eMBB SR or URLLC SR can be transmitted only when TCommon is not operating. In [Fig. 11], a black arrow indicates an instruction to transmit an SR from the MAC layer to the PHY layer, and a blue arrow indicates that an SR procedure for determining whether to transmit an SR has started.

Also, consider a case where each SR configuration configured for the UE has an independent sr-ProhibitTimer, but whether SR transmission according to a specific SR configuration is affected by the sr-ProhibitTimer of another SR configuration. As an example, suppose that the terminal has two SR configurations, that is, SR configuration X and SR configuration Y, and sr-ProhibitTimer-X and sr-ProhibitTimer-Y are set for each SR configuration, respectively. In this case, the terminal operates as follows.

(1) Data is generated in the LCH (or TTI/numerology/resource index) corresponding to SR configuration X, and the regular BSR start condition is satisfied. Accordingly, SR transmission through SR configuration X is started.

(2) The terminal checks whether sr-ProhibitTimer-X and sr-ProhibitTimer-Y are in operation.

A. If sr-ProhibitTimer-X is in operation, the UE cannot request SR signal transmission from the physical layer. Also, if sr-ProhibitTimer-Y is in operation, the UE cannot request SR signal transmission from the physical layer.

B. If both sr-ProhibitTimer-X and sr-ProhibitTimer-Y are not in operation, the SR_COUNTER condition is checked and if it is satisfied, the SR signal transmission can be requested from the physical layer.

i. At this time, the terminal operates sr-ProhibitTimer-X.

(3) Data was generated in the LCH (or TTI/numerology/resource index) corresponding to SR configuration Y, and the regular BSR start condition was satisfied. Accordingly, SR transmission through SR configuration Y was started.

(4) The terminal checks whether sr-ProhibitTimer-Y and sr-ProhibitTimer-X are in operation.

A. If sr-ProhibitTimer-Y is in operation, the UE cannot request SR signal transmission from the physical layer. In addition, if sr-ProhibitTimer-X is in operation, the UE cannot request SR signal transmission from the physical layer.

B. If both sr-ProhibitTimer-Y and sr-ProhibitTimer-X are not in operation, the SR_COUNTER condition is checked and if it is satisfied, the SR signal transmission can be requested from the physical layer.

i. At this time, the terminal operates sr-ProhibitTimer-Y.

As such, in this operation, sr-ProhibitTimer-X and sr-ProhibitTimer-Y set to different SR configuration X and SR configuration Y set to the terminal are set, but whether SR is transmitted according to each SR configuration is determined by sr-PorhibitTimer-X and sr-ProhibitTimer -Y is determined by all.

An example of this is shown in [Fig. 12]. Consider a case where the terminal receives (eMBB SR) configuration for the eMBB service or a corresponding logical channel from the base station and also receives (URLLC SR) configuration for the URLLC service or the corresponding logical channel. Here, let sr-ProhibitTimer of eMBB SR be TeMBB and sr-ProhibitTimer of URLLC SR be TURLLC. Then, when the eMBB SR and the URLLC SR receive independent sr-ProhibitTimer settings, but whether to transmit the SR is determined by both TeMBB and TURLLC, the UE may transmit the SR as shown in [Fig. 12]. That is, neither eMBB SR nor URLLC SR can be transmitted during TeMBB operation, and neither URLLC SR nor eMBB SR can be transmitted during TURLLC operation. In addition, the SR may be transmitted when both TeMBB and TURLLC are not in operation. In [Fig. 12], an arrow indicates an instruction to transmit an SR from the MAC layer to the PHY layer, and a blue arrow indicates that an SR procedure for determining whether to transmit an SR has started.

In addition, each SR configuration configured for the UE has an independent sr-ProhibitTimer, and whether SR is transmitted according to a specific SR configuration is affected by the sr-ProhibitTimer of another SR configuration, and whether SR transmission according to a specific SR configuration is determined by another SR configuration Consider the case where sr-ProhibitTimer is not affected. As an example, suppose that the terminal has two SR configurations, that is, SR configuration X and SR configuration Y, and sr-ProhibitTimer-X and sr-ProhibitTimer-Y are set for each SR configuration, respectively. In this case, the terminal operates as follows.

(1) Data is generated in the LCH (or TTI/numerology/resource index) corresponding to SR configuration X, and the regular BSR start condition is satisfied. Accordingly, SR transmission through SR configuration X is started.

(2) The terminal checks whether sr-ProhibitTimer-X and sr-ProhibitTimer-Y are in operation.

A. If sr-ProhibitTimer-X is in operation, the UE cannot request SR signal transmission from the physical layer. Also, if sr-ProhibitTimer-Y is in operation, the UE cannot request SR signal transmission from the physical layer.

B. If both sr-ProhibitTimer-X and sr-ProhibitTimer-Y are not in operation, the SR_COUNTER condition is checked and if it is satisfied, the SR signal transmission can be requested from the physical layer.

i. At this time, the terminal operates sr-ProhibitTimer-X.

(3) Data was generated in the LCH (or TTI/numerology/resource index) corresponding to SR configuration Y, and the regular BSR start condition was satisfied. Accordingly, SR transmission through SR configuration Y was started.

(4) The terminal checks whether sr-ProhibitTimer-Y operates.

A. If sr-ProhibitTimer-Y is in operation, the UE cannot request SR signal transmission from the physical layer.

B. If sr-ProhibitTimer-Y is not in operation, SR_COUNTER condition is checked and if it is satisfied, SR signal transmission can be requested from the physical layer.

i. At this time, the terminal operates sr-ProhibitTimer-Y.

An example of this is shown in [FIG. 13]. Consider a case where the terminal receives (eMBB SR) configuration for the eMBB service or a corresponding logical channel from the base station and also receives (URLLC SR) configuration for the URLLC service or the corresponding logical channel. Here, let sr-ProhibitTimer of eMBB SR be TeMBB and sr-ProhibitTimer of URLLC SR be TURLLC. If so, eMBB SR and URLLC SR receive independent sr-ProhibitTimer settings, but whether to transmit eMBB SR is determined by both TeMBB and TURLLC, and whether to transmit URLLC SR is determined by TURLLC. have.

That is, eMBB SR cannot be transmitted during TeMBB operation, but URLLC SR may be transmitted. Also, during TURLLC operation, neither URLLC SR nor eMBB SR can be transmitted. That is, the eMBB SR may be transmitted when both TeMBB and TURLLC are not operating, and the URLLC SR may be transmitted when only TURLLC is not operating. In [Fig. 13], an arrow indicates an instruction to transmit an SR from the MAC layer to the PHY layer, and a blue arrow indicates that an SR procedure for determining whether to transmit an SR has started.

Then, which SR configuration considers which sr-ProhibitTimer, a method for determining whether to transmit SR is required. To this end, the present invention proposes the following method.

- For a specific SR configuration, whether or not to transmit SR is determined by considering whether sr-ProhibitTimer of SR configuration with sr-ProhibitTimer having a length or time shorter than its own sr-ProhibitTimer is activated. If SR configurations 1, 2, 3 exist and each sr-ProhibitTimer is T1 = 100 ms, T2 = 200 ms, and T3 = 300 ms, consider the case. If so, SR configuration 1 can instruct the PHY to transmit SR if T1 is not running. Also, SR configuration 2 may instruct the PHY to transmit SR when both T1 and T2 are not operating. Also, the SR configuration may instruct the PHY to transmit SR when T1, T2, and T3 are not all in operation.

- For a specific SR configuration, determine the highest priority among the priorities of logical channels mapped to itself, and based on this, determine which SR configuration to perform SR transmission in consideration of whether or not sr-ProhibitTimer operates. If SR configurations 1, 2, and 3 exist, consider the case where the highest priority of the logical channel mapped to each is P1 = 1, P2 = 3, and P3 = 5, respectively. Here, a lower number corresponds to a higher priority. If so, SR configuration 1 can instruct the PHY to transmit SR if T1 is not running. Also, SR configuration 2 may instruct the PHY to transmit SR when both T1 and T2 are not operating. Also, the SR configuration may instruct the PHY to transmit SR when T1, T2, and T3 are not all in operation. Here, Tj refers to sr-ProhibitTimer of SR configuration j. That is, the SR configuration to which a logical channel with a lower priority corresponds is to determine whether to transmit an SR in consideration of whether the sr-ProhibitTimer of the SR configuration to which a logical channel with a higher priority than itself corresponds to.

Next, SR_COUNTER and dsr-TransMax used in the SR procedure will be described. In general, the operations of SR_COUNTER and dsr-TransMax in LTE in which one UE has one SR configuration are as follows.

That is, whenever the UE requests the physical layer to transmit an SR signal, SR_COUNTER increases by 1. And only when SR_COUNTER is smaller than dsr-TransMax, the UE may request SR signal transmission from the physical layer. And when SR_COUNTER is equal to dsr-TransMax, PUCCH, SRS, DL assignment, UL grant, etc. are released and a random access procedure is started. Therefore, the roles of SR_COUNTER and dsr-TransMax mean that the SR configuration allocated to the terminal by the base station is no longer valid after SR transmission dsr-TransMax.

In the present invention, in order to support UL communication through a plurality of TTI/numerology/resource indexes, a situation in which the base station provides a plurality of SR configurations to the terminal is considered. In this situation, SR_COUNTER and dsr-TransMax may be set as follows.

* Each SR configuration configured for the terminal operates independent SR_COUNTER and dsr-TransMax.

* Even when multiple SR configurations are provided to a UE, one SR_COUNTER and dsr-TransMax is operated per UE.

First, let's look at the operation of the terminal when each SR configuration configured for the terminal operates independent SR_COUNTER and dsr-TransMax. As an example, it is assumed that the terminal has two SR configurations, that is, SR configuration X and SR configuration Y, and each SR configuration operates SR_COUNTER_X and dsr-TransMax-X, and SR_COUNTER_Y and dsr-TransMax-Y, respectively. . In this case, the terminal operates as follows.

(1) Data is generated in the LCH (or TTI/numerology/resource index) corresponding to SR configuration X, and the regular BSR start condition is satisfied. Accordingly, SR transmission through SR configuration X is started. At this time (per terminal or per SR configuration), it is assumed that sr-ProhibitTimer is not running.

A. If SR_COUNTER_X is smaller than dsr-TransMax-X, the UE requests SR signal transmission from the physical layer.

i. At this time, the UE increases SR_COUNTER_X by 1 and activates sr-ProhibitTimer.

B. If SR_COUNTER_X is equal to dsr_TransMax-X, the UE cannot request SR signal transmission from the physical layer.

i. At this time, the UE releases PUCCH, SRS, DL assignment, UL grant, etc. and starts a random access procedure at the same time.

(2) Data is generated in the LCH (or TTI/numerology/resource index) corresponding to SR configuration Y, and the regular BSR start condition is satisfied. Accordingly, SR transmission through SR configuration Y is started. At this time (per terminal or per SR configuration), it is assumed that sr-ProhibitTimer is not running.

A. If SR_COUNTER_Y is smaller than dsr-TransMax-Y, the UE requests SR signal transmission from the physical layer.

i. At this time, the UE increases SR_COUNTER_Y by 1 and activates sr-ProhibitTimer.

B. If SR_COUNTER_Y is equal to dsr_TransMax-Y, the UE cannot request SR signal transmission from the physical layer.

i. At this time, the UE releases PUCCH, SRS, DL assignment, UL grant, etc. and starts a random access procedure at the same time.

In this way, if each SR configuration configured for the terminal operates independent SR_COUNTER and dsr-TransMax, SR_COUNTER_X increases only by SR signal transmission in SR configuration X, and SR_COUNTER_Y increases only by SR signal transmission in SR configuration Y. . That is, SR signal transmission in SR configuration Y does not increase SR_COUNTER_X, and SR signal transmission in SR configuration X does not increase SR_COUNTER_Y. In addition, if even one number of SR signal transmission in SR configuration X and SR signal transmission in SR configuration Y reaches dsr-TransMax-X or dsr-Trans-Max-Y, the UE transmits PUCCH, SRS, DL assignment, UL Simultaneously with releasing grants, etc., the random access procedure starts.

An example of this is shown in [FIG. 14]. Consider a case where the terminal receives (eMBB SR) configuration for the eMBB service or a corresponding logical channel from the base station and also receives (URLLC SR) configuration for the URLLC service or the corresponding logical channel. Here, let SR_COUNTER of eMBB SR be CeMBB and SR_COUNTER of URLLC SR be CURLLC. Also, consider a case where dsr-TransMax configured for eMBB_SR is 4 and dsr-TransMax configured for URLLC_SR is 3. If so, when SR is transmitted according to eMBB_SR, CeMBB increases by 1 and CURLLC does not increase. Also, according to URLLC_SR, CURLLC through which SR is transmitted increases by 1, and CeMBB does not increase. And when CeMBB reaches dsr-TransMax of 4, or CURLLC reaches dsr-TransMax, 3, of URLLC_SR, the UE releases PUCCH, SRS, DL assignment, UL grant, etc. and starts a random access procedure at the same time.

Next, let's look at the operation of the terminal when operating one SR_COUNTER and dsr-TransMax per terminal even if the terminal has a plurality of SR configurations. As an example, it is assumed that the UE has two SR configurations, ie, SR configuration X and SR configuration Y, and operates one SR_COUNTER and dsr-TransMax. In this case, the terminal operates as follows.

(1) Data is generated in the LCH (or TTI/numerology/resource index) corresponding to SR configuration X, and the regular BSR start condition is satisfied. Accordingly, SR transmission through SR configuration X is started. At this time (per terminal or per SR configuration), it is assumed that sr-ProhibitTimer is not running.

A. If SR_COUNTER is less than dsr-TransMax, the UE requests SR signal transmission from the physical layer.

i. At this time, the terminal increases SR_COUNTER by 1 and activates sr-ProhibitTimer.

B. If SR_COUNTER is equal to dsr_TransMax, the UE cannot request SR signal transmission from the physical layer.

i. At this time, the UE releases PUCCH, SRS, DL assignment, UL grant, etc. and starts a random access procedure at the same time.

(2) Data is generated in the LCH (or TTI/numerology/resource index) corresponding to SR configuration Y, and the regular BSR start condition is satisfied. Accordingly, SR transmission through SR configuration Y is started. At this time (per terminal or per SR configuration), it is assumed that sr-ProhibitTimer is not running.

A. If SR_COUNTER is less than dsr-TransMax, the UE requests SR signal transmission from the physical layer.

i. At this time, the terminal increases SR_COUNTER by 1 and activates sr-ProhibitTimer.

B. If SR_COUNTER is equal to dsr_TransMax, the UE cannot request SR signal transmission from the physical layer.

i. At this time, the UE releases PUCCH, SRS, DL assignment, UL grant, etc. and starts a random access procedure at the same time.

As such, even if the terminal has a plurality of SR configurations, if one SR_COUNTER and dsr-TransMax are operated per terminal, SR_COUNTER is increased by both SR signal transmission in SR configuration X and SR signal transmission in SR configuration Y. Also, when the sum of SR signal transmission in SR configuration X and SR signal transmission in SR configuration Y reaches dsr-TransMax, the UE releases PUCCH, SRS, DL assignment, UL grant, etc. and starts a random access procedure at the same time do.

An example of this is shown in [FIG. 15]. Consider a case where the terminal receives (eMBB SR) configuration for the eMBB service or a corresponding logical channel from the base station and also receives (URLLC SR) configuration for the URLLC service or the corresponding logical channel. Here, it is assumed that SR_COUNTER of the terminal applied to both eMBB SR and URLLC_SR is CUE. Also, consider a case where the dsr-TransMax set for the corresponding terminal is 7. If so, when the SR is transmitted according to the eMBB_SR, the CUE increases by 1, and the CUE where the SR is transmitted according to the URLLC_SR is subsequently increased by 1. And when the CUE reaches 7, which is the dsr-TransMax of the corresponding terminal, the terminal releases PUCCH, SRS, DL assignment, UL grant, etc. and starts a random access procedure at the same time.

In the present invention, in order to support UL communication through a plurality of TTI/numerology/resource indexes, a situation in which the base station provides a plurality of SR configurations to the terminal is considered. If SR resources having different SR configurations are overlapped and allocated to the same time or frequency resource, the UE must select and transmit an SR signal corresponding to one SR configuration. In this case, the UE may select one SR configuration based on the following criteria.

* The UE checks the LCH of the data initiating the regular BSR and compares the priorities between the LCHs. Then, after selecting the LCH having the highest priority, the SR configuration corresponding to the corresponding LCH is selected. Thereafter, an SR signal corresponding to the corresponding SR configuration is selected and transmitted.

8 is a diagram illustrating the structure of a terminal according to an embodiment of the present invention.

Referring to FIG. 8 , the terminal may include a transceiver, a terminal control unit, and a storage unit. In the present invention, the terminal control unit may be defined as a circuit or an application-specific integrated circuit or at least one processor.

The transceiver may transmit/receive signals to and from other network entities. The transceiver may receive, for example, system information from a base station, and may receive a synchronization signal or a reference signal.

The terminal control unit may control the overall operation of the terminal according to the embodiment proposed in the present invention. For example, the terminal control unit may control the signal flow between blocks to perform an operation according to the above-described drawings and flowcharts.

The storage unit may store at least one of information transmitted and received through the transceiver and information generated through the terminal control unit.

9 is a diagram illustrating a structure of a base station according to an embodiment of the present invention.

Referring to FIG. 9 , the base station may include a transceiver unit, a base station control unit, and a storage unit. In the present invention, the base station control unit may be defined as a circuit or an application specific integrated circuit or at least one processor.

The transceiver may transmit/receive signals to and from other network entities. The transceiver may transmit, for example, system information to the terminal, and may transmit a synchronization signal or a reference signal.

The base station controller may control the overall operation of the base station according to the embodiment proposed in the present invention.

The storage unit may store at least one of information transmitted/received through the transceiver and information generated through the control unit.

The embodiments disclosed in the present specification and drawings above are merely specific examples to easily explain the contents of the present invention and help understanding, and are not intended to limit the scope of the present invention. Therefore, the scope of the present invention should be construed as including all changes or modifications derived based on the technical spirit of the present invention in addition to the embodiments disclosed herein are included in the scope of the present invention.

Claims (18)

In the method of a terminal in a communication system,
Receiving, from a base station, a radio resource control (RRC) message including an LCH configuration for a plurality of logical channels (LCH) and a plurality of scheduling request (SR) configurations, wherein the LCH configuration is at least associated with the plurality of LCHs, respectively includes information on one numerology, and each of the plurality of SR configurations corresponds to one or more LCHs among the plurality of LCHs;
checking an SR configuration corresponding to the LCH in which the uplink data is generated among the plurality of SR configurations when uplink data is generated in any one of the plurality of LCHs; and
When the SR prohibit timer set for the confirmed SR setting is not running, and the number of SR transmissions counted for the checked SR setting is less than the maximum number of SR transmissions set for the confirmed SR setting , based on the confirmed SR configuration, comprising the step of transmitting an SR for requesting an uplink grant to the base station,
An SR prohibit timer is set for each of the plurality of SR settings,
The maximum number of SR transmissions is set for each of the plurality of SR settings,
A method characterized in that the number of SR transmissions is counted for each of the plurality of SR settings.
According to claim 1,
The uplink data is characterized in that it is associated with any one of the at least one neurology.
According to claim 1,
The confirmed SR configuration includes information on the SR prohibit timer for the confirmed SR configuration and information on the maximum number of SR transmissions for the confirmed SR configuration,
The SR is characterized in that it is transmitted in a physical uplink control channel (PUCCH) associated with the confirmed SR configuration.
According to claim 1,
When the SR prohibit timer set for the confirmed SR setting is not running and the number of SR transmissions counted for the confirmed SR setting is the same as the maximum number of SR transmissions set for the confirmed SR setting, PUCCH (physical uplink control channel) ), a sounding reference signal (SRS), and releasing the configured downlink assignment and the configured uplink grant.
According to claim 1,
The method of claim 1, further comprising: starting an SR prohibit timer set for the confirmed SR setting.
According to claim 1,
When the checked SR setting is the first SR setting, the transmission of the SR is an SR prohibit timer set for the first SR setting, the number of SR transmissions counted for the first SR setting, and the first SR setting Based on the set maximum number of SR transmissions,
When the checked SR setting is the second SR setting, the transmission of the SR is an SR prohibit timer set for the second SR setting, the number of SR transmissions counted for the second SR setting, and the second SR setting Method characterized in that based on the set maximum number of SR transmission.
A method of a base station in a communication system, comprising:
Transmitting a radio resource control (RRC) message including LCH configuration for a plurality of logical channels (LCH) and a plurality of scheduling request (SR) configurations to the terminal, wherein the LCH configuration is at least one associated with the plurality of LCHs, respectively includes information on the numerology of , wherein each of the plurality of SR configurations corresponds to one or more LCHs among the plurality of LCHs; and
When uplink data is generated in any one LCH among the plurality of LCHs, based on the SR configuration identified as corresponding to the LCH among the plurality of SR configurations, an SR for requesting an uplink grant Receiving from the terminal,
In the SR, when the SR prohibit timer set for the confirmed SR setting is not running, and the number of SR transmissions counted for the confirmed SR setting is less than the maximum number of SR transmissions set for the confirmed SR setting, the received from the terminal,
An SR prohibit timer is set for each of the plurality of SR settings,
The maximum number of SR transmissions is set for each of the plurality of SR settings,
A method characterized in that the number of SR transmissions is counted for each of the plurality of SR settings.
8. The method of claim 7,
The uplink data is characterized in that it is associated with any one of the at least one neurology.
8. The method of claim 7,
The confirmed SR configuration includes information on the SR prohibit timer for the confirmed SR configuration and information on the maximum number of SR transmissions for the confirmed SR configuration,
When the checked SR setting is the first SR setting, the reception of the SR is an SR prohibit timer set for the first SR setting, the number of SR transmissions counted for the first SR setting, and the first SR setting Based on the set maximum number of SR transmissions,
When the checked SR setting is the second SR setting, the reception of the SR is an SR prohibit timer set for the second SR setting, the number of SR transmissions counted for the second SR setting, and the second SR setting Based on the set maximum number of SR transmissions,
The SR is characterized in that it is received in a physical uplink control channel (PUCCH) associated with the confirmed SR configuration.
In the terminal of a communication system,
transceiver; and
connected to the transceiver,
A radio resource control (RRC) message including LCH configuration for a plurality of logical channels (LCH) and a plurality of scheduling request (SR) configurations is received from the base station through the transceiver, and the LCH configuration is configured with the plurality of LCHs Each includes information on at least one associated numerology, and each of the plurality of SR configurations corresponds to one or more LCHs among the plurality of LCHs,
When uplink data is generated in any one of the LCHs among the plurality of LCHs, an SR configuration corresponding to the LCH in which the uplink data is generated among the plurality of SR configurations is checked,
When the SR prohibit timer set for the confirmed SR setting is not running, and the number of SR transmissions counted for the checked SR setting is less than the maximum number of SR transmissions set for the confirmed SR setting , based on the confirmed SR configuration, comprising a control unit for transmitting an SR for requesting an uplink grant to the base station through the transceiver,
An SR prohibit timer is set for each of the plurality of SR settings,
The maximum number of SR transmissions is set for each of the plurality of SR settings,
The terminal, characterized in that the number of SR transmission is counted for each of the plurality of SR configurations.
11. The method of claim 10,
The uplink data is a terminal, characterized in that associated with any one of the at least one neurology.
11. The method of claim 10,
The confirmed SR configuration includes information on the SR prohibit timer for the confirmed SR configuration and information on the maximum number of SR transmissions for the confirmed SR configuration,
The SR is a terminal, characterized in that transmitted in a physical uplink control channel (PUCCH) associated with the confirmed SR configuration.
11. The method of claim 10,
The control unit is
When the SR prohibit timer set for the confirmed SR setting is not running and the number of SR transmissions counted for the confirmed SR setting is the same as the maximum number of SR transmissions set for the confirmed SR setting, PUCCH (physical uplink control channel) ), a sounding reference signal (SRS), a configured downlink assignment, and a configured uplink grant.

11. The method of claim 10,
The control unit is
The terminal, characterized in that starting the SR prohibit timer set for the confirmed SR configuration.
11. The method of claim 10,
When the checked SR setting is the first SR setting, the transmission of the SR is an SR prohibit timer set for the first SR setting, the number of SR transmissions counted for the first SR setting, and the first SR setting Based on the set maximum number of SR transmissions,
When the checked SR setting is the second SR setting, the transmission of the SR is an SR prohibit timer set for the second SR setting, the number of SR transmissions counted for the second SR setting, and the second SR setting Terminal, characterized in that based on the set maximum number of SR transmission.

In a base station of a communication system,
transceiver; and
connected to the transceiver,
A radio resource control (RRC) message including LCH configuration for a plurality of logical channels (LCH) and a plurality of scheduling request (SR) configurations is transmitted to the terminal through the transceiver, and the LCH configuration is configured with the plurality of LCHs, respectively includes information on at least one associated numerology, and each of the plurality of SR configurations corresponds to one or more LCHs among the plurality of LCHs,
When uplink data is generated in any one LCH among the plurality of LCHs, based on the SR configuration identified as corresponding to the LCH among the plurality of SR configurations, an SR for requesting an uplink grant And a control unit for receiving from the terminal through the transceiver,
In the SR, when the SR prohibit timer set for the confirmed SR setting is not running, and the number of SR transmissions counted for the confirmed SR setting is less than the maximum number of SR transmissions set for the confirmed SR setting, the received from the terminal,
An SR prohibit timer is set for each of the plurality of SR settings,
The maximum number of SR transmissions is set for each of the plurality of SR settings,
A base station, characterized in that the number of SR transmissions is counted for each of the plurality of SR configurations.
17. The method of claim 16,
The uplink data is a base station, characterized in that associated with any one of the at least one neurology.
17. The method of claim 16,
The confirmed SR configuration includes information on the SR prohibit timer for the confirmed SR configuration and information on the maximum number of SR transmissions for the confirmed SR configuration,
When the checked SR setting is the first SR setting, the reception of the SR is an SR prohibit timer set for the first SR setting, the number of SR transmissions counted for the first SR setting, and the first SR setting Based on the set maximum number of SR transmissions,
When the checked SR setting is the second SR setting, the reception of the SR is an SR prohibit timer set for the second SR setting, the number of SR transmissions counted for the second SR setting, and the second SR setting Based on the set maximum number of SR transmissions,
The SR is a base station, characterized in that received in a physical uplink control channel (PUCCH) associated with the confirmed SR configuration.

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