Method and apparatus for prioritizing multiple conflicting resources

Abstract

An operation method of a user equipment (UE) in a wireless communication system is provided, the operation method including determining, by a medium access control (MAC) entity, resources corresponding to uplink radio resources or scheduling request (SR) transmission resources, identifying, by the MAC entity, at least one uplink radio resource or at least one SR transmission resource other than a non-priority resource which overlaps the resources on a time axis, and identifying, by the MAC entity, a priority resource for transmitting at least one of data, control information, or an SR based on a priority of the at least one uplink radio resource other than the non-priority resource, a priority of the at least one SR transmission resource other than the non-priority resource, and a priority of the resources.

Description

Technical Field

[0001] The present disclosure relates to methods and apparatus for prioritizing multiple conflicting resources in a wireless communication system. Background Art

[0002] In order to meet the growing demand for wireless data traffic after the commercialization of the fourth generation (4G) communication system, efforts have been made to develop the fifth generation (5G) or quasi-5G communication system. For this reason, the 5G or quasi-5G communication system is referred to as a "super 4G network" communication system or a "post-long term evolution (post-LTE)" system. In order to achieve high data rates, it is being considered to implement the 5G communication system in an ultra-high frequency or millimeter wave (mmWave) frequency band (e.g., a 60 GHz frequency band). In order to reduce the path loss in the ultra-high frequency band of the 5G communication system and increase the coverage of radio waves, various technologies such as beamforming, massive multiple input multiple output (massive MIMO), full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, and massive antennas are being studied. In order to improve the system network for the 5G communication system, various technologies such as evolved small cells, advanced small cells, cloud radio access networks (cloud RAN), ultra-dense networks, device-to-device (D2D) communication, wireless backhaul, mobile networks, collaborative communications, coordinated multipoint (CoMP), and receive interference cancellation have been developed. In addition, for 5G systems, advanced coding and modulation (ACM) technologies such as hybrid frequency shift keying (FSK) and quadrature amplitude modulation (QAM) (FQAM) and sliding window superposition coding (SWSC) have been developed, as well as advanced access technologies such as filter bank multi-carrier (FBMC), non-orthogonal multiple access (NOMA) and sparse code multiple access (SCMA) have been developed.

[0003] The Internet has evolved from a human-based connected network where humans create and consume information to the Internet of Things (IoT), where distributed elements such as objects exchange information with each other for processing. The Internet of Everything (IoE) has emerged, combining IoT technology with technologies for processing big data, such as those used for connectivity through cloud servers. Implementing the IoT requires various technological elements, including sensing technology, wired / wireless communications and network infrastructure, service interface technology, and security technology. In recent years, research has focused on technologies related to sensor networks, machine-to-machine (M2M) communication, and machine-type communication (MTC) for connecting objects. Within the IoT environment, intelligent Internet technology (IT) services can be provided to collect and analyze data obtained from connected objects, thereby creating new value in human life. Due to the convergence and integration of existing information technology (IT) and various industries, IT can be applied to a variety of fields, such as smart homes, smart buildings, smart cities, smart cars or connected vehicles, smart grids, healthcare, smart appliances, and advanced medical services.

[0004] Various attempts are underway to apply 5G communication systems to IoT networks. For example, technologies related to sensor networks, machine-to-machine (M2M) communication, and machine-to-computer (MTC) communication are being implemented using 5G communication technologies, including beamforming, multiple-input multiple-output (MIMO), and array antennas. The application of cloud RAN, a technology for big data processing, is an example of the convergence of 5G and IoT technologies.

[0005] Since various services can be provided due to the development of wireless communication systems as described above, there is a need for a method for seamlessly providing services by prioritizing a plurality of conflicting resources in the wireless communication system. Summary of the Invention

[0006] [Technical Issues]

[0007] The present disclosure provides an apparatus and method capable of effectively supporting services in a wireless communication system.

[0008] [Solution to the problem]

[0009] According to an embodiment of the present disclosure, a transmission method based on multiple uplink radio resource priorities may include: allocating at least one of a plurality of uplink radio resources and scheduling request (SR) configuration resources; determining the priorities of the allocated plurality of uplink radio resources and SR configuration resources; and based on the determined result, sending at least one of data or control information by using at least one of the allocated plurality of uplink radio resources and SR configuration resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a diagram illustrating a situation where a plurality of uplink radio resources overlap according to an embodiment of the present disclosure.

[0011] Figure 2 is a diagram illustrating a situation where a scheduling request (SR) and uplink radio resources overlap according to an embodiment of the present disclosure.

[0012] Figure 3 It is a diagram illustrating a scenario of uplink resource overlap and related technical issues according to an embodiment of the present disclosure.

[0013] Figure 4 It is a diagram illustrating a scenario of uplink resource overlap and related technical issues according to an embodiment of the present disclosure.

[0014] Figure 5 is a flow chart of a prioritization process according to an embodiment of the present disclosure.

[0015] Figure 6is a flow chart of a prioritization process according to an embodiment of the present disclosure.

[0016] Figure 7 is a flow chart of a prioritization process according to an embodiment of the present disclosure.

[0017] Figure 8 is a flow chart of a prioritization process according to an embodiment of the present disclosure.

[0018] Figure 9 is a block diagram of a user equipment (UE) according to an embodiment of the present disclosure.

[0019] Figure 10 is a block diagram of a base station according to an embodiment of the present disclosure.

[0020] Figure 11 is a flow chart of a prioritization process according to an embodiment of the present disclosure.

[0021] Figure 12 is a flow chart of a prioritization process according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0022] According to an embodiment of the present disclosure, an operation method of a user equipment (UE) in a wireless communication system can be provided. The operation method may include: determining, by a medium access control (MAC) entity, a resource corresponding to an uplink radio resource or a scheduling request (SR) transmission resource; identifying, by the MAC entity, at least one uplink radio resource or at least one SR transmission resource other than non-priority resources that overlaps with the resource on a time axis; identifying, by the MAC entity, a priority of the at least one uplink radio resource other than the non-priority resource and a priority of the at least one SR transmission resource other than the non-priority resource; identifying, by the MAC entity, a priority resource for sending at least one of data, control information or SR based on the priority of the at least one uplink radio resource other than the non-priority resource, the priority of the at least one SR transmission resource other than the non-priority resource, and the priority of the resource; and determining, by the MAC entity, at least one uplink radio resource overlapping with the priority resource and at least one SR transmission resource overlapping with the priority resource as a non-priority resource.

[0023] Identifying the priority resources for sending at least one of the data, the control information or the SR may include: determining, by the MAC entity, the type of uplink grant to which uplink radio resources associated with the data to be sent have been allocated; and identifying, by the MAC entity, the priority resources based on the type of the uplink grant, and wherein the type of the uplink grant is a dynamic uplink grant or a configured uplink grant.

[0024] Identifying priority resources based on the type of uplink authorization may include: when the uplink radio resource is allocated by the dynamic uplink authorization, the MAC entity determines whether the priority of the resource is higher than the priority of the at least one uplink radio resource other than the non-priority resources allocated by the configured uplink authorization and the priority of the at least one SR transmission resource other than the non-priority resources; and when it is determined that the priority of the resource is higher, the MAC entity identifies the resource as the priority resource.

[0025] Identifying priority resources based on the type of uplink authorization may include: when the uplink radio resource is allocated by the configured uplink authorization, identifying the resource as the priority resource when it is determined that: there is no at least one uplink radio resource other than the non-priority resource, whose priority is higher than the resource and is allocated by the configured uplink authorization; there is no at least one uplink radio resource other than the non-priority resource, whose priority is equal to or higher than the resource and is allocated by the dynamic uplink authorization; and there is no at least one SR transmission resource other than the non-priority resource, whose priority is higher than the resource.

[0026] Identifying the priority of at least one uplink radio resource other than the non-priority resources and the priority of the at least one SR transmission resource other than the non-priority resources may include: the MAC entity determining the priority of the at least one SR transmission resource other than the non-priority resources based on the priority of the logical channel that has triggered the SR transmission.

[0027] The operating method may also include: the MAC entity determining the priority of the resource based on the highest priority among the priorities of the logical channels included in the generated MAC protocol data unit (PDU), or the highest priority among the priorities of the logical channels included in the MAC PDU to be generated.

[0028] Determining the resource corresponding to the uplink radio resource or the SR transmission resource by the MAC entity may include: identifying the priority of at least one uplink radio resource and the priority of at least one SR transmission resource; and determining the resource based on the priority of the at least one uplink radio resource and the priority of the at least one SR transmission resource.

[0029] The resource may be determined as an uplink radio resource or an SR transmission resource corresponding to a highest priority among the priority of the at least one uplink radio resource and the priority of the at least one SR transmission resource.

[0030] Identifying the priority resource for sending at least one of the data, the control information or the SR includes: identifying the uplink radio resource or the SR transmission resource corresponding to the priority of the at least one uplink radio resource other than the non-priority resources, the priority of the at least one SR transmission resource other than the non-priority resources, and the highest priority among the priorities of the resources as the priority resource.

[0031] According to an embodiment of the present disclosure, a user equipment (UE) operating in a wireless communication system can be provided. The UE may include a transceiver and at least one processor operating in association with the transceiver. The at least one processor is configured to: determine, by a medium access control (MAC) entity, a resource corresponding to an uplink radio resource or a scheduling request (SR) transmission resource; identify, by the MAC entity, at least one uplink radio resource or at least one SR transmission resource other than non-priority resources that overlaps with the resource on a time axis; identify, by the MAC entity, a priority of the at least one uplink radio resource other than the non-priority resources and a priority of the at least one SR transmission resource other than the non-priority resources; identify, by the MAC entity, a priority resource for sending at least one of data, control information, or SR based on the priority of the at least one uplink radio resource other than the non-priority resources, the priority of the at least one SR transmission resource other than the non-priority resources, and the priority of the resource; and determine, by the MAC entity, at least one uplink radio resource overlapping with the priority resource and at least one SR transmission resource overlapping with the priority resource as a non-priority resource.

[0032] The at least one processor may also be configured to: determine, by the MAC entity, a type of uplink grant to which uplink radio resources associated with data to be sent have been allocated; and identify, by the MAC entity, the priority resources based on the type of the uplink grant, and wherein the type of the uplink grant is a dynamic uplink grant or a configured uplink grant.

[0033] The at least one processor can also be configured to: when the uplink radio resource is allocated by the dynamic uplink authorization, the MAC entity determines whether the priority of the resource is higher than the priority of the at least one uplink radio resource other than the non-priority resources allocated by the configured uplink authorization and the priority of the at least one SR transmission resource other than the non-priority resources; and when it is determined that the priority of the resource is higher, the MAC entity identifies the resource as the priority resource.

[0034] The at least one processor may also be configured to, when the uplink radio resource is allocated by the configured uplink grant, identify the resource as the priority resource upon determining that: there is no at least one uplink radio resource other than the non-priority resource, whose priority is higher than the resource and is allocated by the configured uplink grant; there is no at least one uplink radio resource other than the non-priority resource, whose priority is equal to or higher than the resource and is allocated by the dynamic uplink grant; and there is no at least one SR transmission resource other than the non-priority resource, whose priority is higher than the resource.

[0035] The at least one processor may also be configured to: determine, by the MAC entity, a priority of the at least one SR transmission resource other than the non-priority resources based on a priority of a logical channel that has triggered SR transmission.

[0036] The at least one processor may also be configured to: determine, by the MAC entity, the priority of the resource based on the highest priority among the priorities of the logical channels included in the generated MAC protocol data unit (PDU), or the highest priority among the priorities of the logical channels included in the MAC PDU to be generated.

[0037] [Embodiments of the present disclosure]

[0038] In the following description of the present disclosure, when a detailed description of a known function or configuration incorporated herein may make the subject matter of the present disclosure unclear, the detailed description of the known function or configuration incorporated herein will be omitted. The terms used below are defined in consideration of the functions in the present disclosure and may be changed according to the habits or intentions of the user or operator. Therefore, the definition of the terms is understood on the basis of the entire description of this specification. In the following description, terms identifying access nodes, terms indicating network entities, terms indicating messages, terms indicating interfaces between network entities, terms indicating various types of identification information, etc. are selected merely for ease of explanation. Therefore, the present disclosure is not limited to these terms, and other terms with technically equivalent meanings may also be used.

[0039] As used herein, a base station is an entity for allocating resources to a terminal and may include at least one of a gNode B (gNB), an eNode B (eNB), a Node B (NB), a base station (BS), a radio access unit, a base station controller, or a node on a network. A terminal may include a user equipment (UE), a mobile station (MS), a cellular phone, a smartphone, a computer, or a multimedia system capable of performing communication functions. The term "terminal" may also refer to a mobile phone, an NB-IoT device, a sensor, and other wireless communication devices. However, base stations and terminals are not limited to the above examples.

[0040] For ease of explanation, the present disclosure uses terms and names defined in the 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) standard and / or the 3GPP New Radio (NR) standard. However, the present disclosure is not limited to these terms and names.

[0041] Although LTE, LTE Advanced (LTE-A), LTE Pro or 5G (or NR) systems are mentioned below as examples, the embodiments of the present disclosure may also be applied to other communication systems with similar technical backgrounds or channel types. In addition, without significantly departing from the scope of the present disclosure based on the determination of a person of ordinary skill in the art, the embodiments of the present disclosure may also be applied to other communication systems by partial modifications. Hereinafter, the present disclosure will be described in detail by explaining the embodiments of the present disclosure with reference to the accompanying drawings.

[0042] Figure 1 1 is a diagram illustrating a scenario in which multiple uplink radio resources overlap. A base station can allocate resources 110 and 120 to a user equipment (UE) for transmitting at least one of data or control information, and the resources 110 and 120 allocated to the UE can overlap on a time axis 130, or overlap on both the time axis 130 and the frequency axis. Each resource 110 or 120 allocated to the UE can be one of the following: a dynamic grant (DG) allocated per physical downlink control channel (PDCCH), or a configured grant (CG) that is once configured and repeated at regular intervals.

[0043] The configuration grant can be activated immediately after being configured or activated by an activation command. The configuration grant can have a fixed traffic pattern or be assumed to be used for high-priority data. Depending on the implementation, specific uplink resources can be allocated specifically for data with short delay requirements. To this end, the base station can configure whether specific uplink resources are available for specific logical channels through a radio resource control (RRC) configuration message for the UE.

[0044] When Figure 1When the uplink radio resources 110 and 120 shown overlap on the time axis 130 or on the time axis 130 and the frequency axis, the UE may need to select one radio resource for transmission. The resource selected and used for transmission may be a resource with a high priority value indicating a logical channel with data to be transmitted. To this end, the UE (e.g., a medium access control (MAC) entity of the UE) may determine a priority value for each uplink radio resource. When a MAC protocol data unit (PDU) to be transmitted using an uplink radio resource has been generated, the priority of the uplink radio resource may be determined as the highest priority among the priorities of the data (or data and MAC control elements (CEs)) included in the generated MAC PDU.

[0045] When no MAC PDU is generated to be transmitted using the uplink radio resource, the priority of the uplink radio resource may be determined as the highest priority among the priorities of the logical channels that can be multiplexed in the uplink radio resource. Therefore, the priority of the uplink radio resource may be determined as the highest priority among the priorities of the following logical channels (or logical channels and MAC CEs), which are logical channels (or logical channels and MAC CEs) having data (or data and MAC CEs) to be transmitted among the logical channels (or logical channels and MAC CEs) that can use the uplink radio resource.

[0046] When uplink radio resources are allocated but are actually unavailable, the radio resources should not be selected for transmission. For example, when the allocated uplink radio resources are configuration grant resources but the configuration grant timer of the hybrid automatic repeat request (HARQ) process for the configuration grant resources is running, the UE may not send certain data or control information on the allocated configuration grant resources.

[0047] As another example, when an uplink radio resource is allocated with a configured scheduling radio network temporary identifier (CS-RNTI) and is a retransmission resource for a configured grant with an unswitched new data indicator (NDI), the allocated radio resource cannot be used for transmission when the HARQ buffer of the HARQ process is empty.

[0048] As another example, even though the allocated uplink radio resources are part of a bundle and are not initial transmission resources for the bundle, when the HARQ buffer of the HARQ process is empty, the allocated radio resources cannot be used for transmission. Unavailable radio resources can be excluded when determining the priority of conflicting resources, or the UE (e.g., the MAC entity of the UE) can set the priority value of the resource to a specific low value to prevent it from being used for transmission. Depending on the embodiment, the UE or the base station can set the priority value of the unavailable radio resources to the lowest value to prevent it from being used for transmission.

[0049] Figure 2 1 is a diagram illustrating a scenario in which a scheduling request (SR) and uplink radio resources overlap according to an embodiment of the present disclosure. A base station may allocate SR configuration resources 210 to a UE capable of transmitting an SR message. The base station may also allocate resources 220 to the UE for transmitting at least one of data or control information. The resources 220 allocated to the UE may be one of the following: a dynamic grant (DG) allocated per physical downlink control channel (PDCCH), or a configuration grant (CG) that is once configured and repeated at regular intervals.

[0050] The configuration grant may be activated immediately after being configured or by an activation command. The configuration grant may have a fixed traffic pattern or be assumed to be used for high-priority data. Depending on the implementation, specific uplink resources may be allocated specifically for data with short delay requirements. To this end, the base station may configure whether specific uplink resources are available for specific logical channels through an RRC configuration message for the UE. The SR configuration resources 210 and the uplink radio resources 220 may overlap on the time axis 230 or on the time axis 230 and the frequency axis.

[0051] When Figure 2 When the SR configuration resources 210 and the uplink radio resources 220 shown overlap on the time axis 230 or on the time axis 230 and the frequency axis, the UE may need to select one of the SR configuration resources 210 or the uplink radio resources 220 for transmission. The resource selected and used for transmission may be a resource with a high priority value indicating a logical channel for which an SR has been triggered to be sent, and a resource with a high priority value indicating a logical channel for which data (or data and MAC CE) is to be transmitted using the uplink radio resources. To this end, the UE (e.g., the MAC entity of the UE) may determine a priority value for each uplink radio resource. When a MAC PDU to be transmitted using an uplink radio resource has been generated, the priority of the uplink radio resource may be determined as the highest priority among the priorities of the data (or data and MAC CE) included in the generated MAC PDU.

[0052] When no MAC PDU is generated to be transmitted using the uplink radio resource, the priority of the uplink radio resource may be determined as the highest priority among the priorities of the logical channels that can be multiplexed in the uplink radio resource. Therefore, the priority of the uplink radio resource may be determined as the highest priority among the priorities of the following logical channels (or logical channels and MAC CEs), which are logical channels (or logical channels and MAC CEs) having data (or data and MAC CEs) to be transmitted among the logical channels (or logical channels and MAC CEs) that can use the uplink radio resource.

[0053] When an SR configuration resource exists but SR transmission using that configuration resource is not triggered, or when SR transmission is triggered but canceled, the SR configuration resource should not be selected for transmission. When the priority of the SR resource is compared with the priority of the uplink radio resource, the SR configuration resource that is not to be transmitted can be excluded, or the UE or base station can set the priority value of the SR configuration resource to a specific low value to prevent it from being used for transmission. Depending on the embodiment, the UE or base station can set the priority value of the SR configuration to the lowest value to prevent it from being used for transmission.

[0054] When uplink radio resources are allocated but are actually unavailable, the radio resources should not be selected for transmission. For example, when the allocated uplink radio resources are configuration grant resources but the configuration grant timer of the HARQ process for the configuration grant resources is running, the UE may not send certain data or control information on the allocated configuration grant resources.

[0055] As another example, when a certain uplink radio resource is allocated with a CS-RNTI and is a retransmission resource for a configuration grant with an unswitched NDI, the allocated radio resource may not be used for transmission when the HARQ buffer of the HARQ process is empty.

[0056] As another example, even though the allocated uplink radio resources are part of the resources of a packet and are not the initial transmission resources of the packet, when the HARQ buffer of the HARQ process is empty, the allocated radio resources cannot be used for transmission. Unavailable radio resources can be excluded when determining the priority of conflicting resources, or the UE (e.g., the MAC entity of the UE) can set the priority value of the resource to a specific low value to prevent it from being used for transmission. Depending on the embodiment, the UE or the base station can set the priority value of the unavailable radio resources to the lowest value to prevent it from being used for transmission.

[0057] Figure 3 FIG is a diagram illustrating a situation where uplink resources overlap and related technical issues according to an embodiment of the present disclosure. Figure 3 Assume that two cells 310 and 320 are configured for the UE, but it can be Figure 3 Different, more or fewer cells can be configured. The base station can allocate radio resources for each cell to the UE, and this resource allocation unit is called an uplink radio resource (uplink grant). Multiple uplink radio resources can be allocated at the same timing, but only one uplink radio resource can be sent in each cell.

[0058] According to an embodiment of the present disclosure, the uplink radio resource to be selected and transmitted can be determined based on the priority of each uplink radio resource. When the uplink radio resources overlap on the time axis or overlap on the time axis and frequency axis, the uplink radio resource with a high priority can be selected and transmitted. When a MAC PDU to be transmitted using an uplink radio resource has been generated, the priority of the uplink radio resource can be determined as the highest priority among the priorities of the data (or data and MAC CE) included in the generated MAC PDU.

[0059] When no MAC PDU to be transmitted using the uplink radio resource is generated, the priority of the uplink radio resource may be determined as the highest priority among the priorities of the logical channels (or the logical channels and the MAC CE) that may be included in the MAC PDU to be transmitted using the radio resource. Therefore, the priority of the uplink radio resource may be determined as the highest priority among the priorities of the logical channels having data to be transmitted by the UE when the uplink radio resource priority is determined.

[0060] When the priorities of both logical channels and MAC CEs need to be considered, the priority of uplink radio resources may be determined as the highest priority among the priorities of the logical channel having data to be transmitted by the UE and the MAC CE to be transmitted by the UE at the time of determining the priority of the uplink radio resources. However, the method of determining the priority of uplink radio resources is not limited to the above example, and the priority of uplink radio resources may be determined based on a certain standard or a certain method.

[0061] Figure 3 The embodiment of FIG. 3 shows that a total of three uplink radio resources 320, 330, and 340 are configured for cell 1 310. Each uplink radio resource may be allocated in a dynamic grant or a configured grant manner. Figure 3 The embodiment assumes that the priority of each uplink radio resource is determined using the above method or another predetermined method. The priority of each uplink radio resource may be defined as a specific value (eg, a numerical value).

[0062] Figure 3 In the embodiment, it is assumed that the priority of the first uplink radio resource 320 is 2, the priority of the second uplink radio resource 330 is 5, and the priority of the third uplink radio resource 340 is 1. A total of three uplink radio resources 360, 370, and 380 are configured for cell 2 350. It is assumed that the priority of the fourth uplink radio resource 360 ​​is 2, the priority of the fifth uplink radio resource 370 is 3, and the priority of the sixth uplink radio resource 380 is 5.

[0063] Depending on the embodiment, the uplink radio resources allocated by the base station to the UE may overlap with each other on the time axis. For example, the first uplink radio resource 320 overlaps with the second uplink radio resource 330 and the third uplink radio resource 340 on the time axis in cell 1 310. The fourth uplink radio resource 360 ​​overlaps with the fifth uplink radio resource 370 on the time axis in cell 2 350, and overlaps with the sixth uplink radio resource 380 on both the time axis and the frequency axis in cell 2 350.

[0064] When uplink radio resources overlap on the time axis or on both the time axis and the frequency axis, an uplink radio resource with a higher priority (i.e., a smaller priority value) can be selected as a priority uplink radio resource (priority uplink grant) based on the priority of the uplink radio resources and transmitted. In other words, an uplink radio resource with the highest priority value can be selected based on the priority value and used to transmit at least one of data or control information. A priority uplink radio resource may be an uplink radio resource that is determined to be prioritized for transmission based on the priority value.

[0065] Non-priority uplink radio resources (non-priority uplink grants) may not be sent. For example, uplink radio resources other than the uplink radio resource with the highest priority value may not be used for transmission.

[0066] According to an embodiment of the present disclosure, prioritization can be a process of determining which uplink radio resources to transmit based on their priority values. A non-priority uplink radio resource determined in the prioritization process may have a higher priority than another uplink radio resource, thereby preventing the transmission of the other uplink radio resource. In other words, uplink radio resources other than the uplink radio resource with the highest priority value may not be used for transmission.

[0067] exist Figure 3In the embodiment, the priority of the first uplink radio resource 320 is 2, so the second uplink radio resource 330 with a priority of 5 can be determined as a non-priority uplink radio resource. However, since the first uplink radio resource 320 overlaps with the third uplink radio resource 340 with a priority of 1 on the time axis and has a lower priority than the third uplink radio resource 340, the first uplink radio resource 320 can also be determined as a non-priority uplink radio resource not to be transmitted.

[0068] In this case, after the third uplink radio resource 340, which is the priority uplink radio resource, is transmitted, the second uplink radio resource 330 may be transmittable because it does not overlap with the third uplink radio resource 340 on at least one of the time axis or the frequency axis. However, the second uplink radio resource 330 is determined as a non-priority uplink radio resource in the prioritization process and cannot be transmitted. This phenomenon reduces radio resource utilization and degrades key performance indicators (KPIs) such as reliability.

[0069] Figure 4 FIG is a diagram illustrating a situation where uplink resources overlap and related technical issues according to an embodiment of the present disclosure. Figure 4 Assume that two cells 410 and 420 are configured for the UE, but it can be Figure 4 Different, more or fewer cells can be configured. The base station can allocate radio resources for each cell to the UE, and this resource allocation unit is called an uplink radio resource (uplink grant). Multiple uplink radio resources can be allocated at the same timing, but only one uplink radio resource can be sent in each cell.

[0070] In addition, the base station can configure SR configuration resources for each cell, and the SR configuration resources can overlap with another SR configuration resource or another uplink radio resource on the time axis or on the time axis and the frequency axis. According to an embodiment of the present disclosure, the SR configuration resources or uplink radio resources to be selected and sent can be determined based on the priority of each uplink radio resource. When the SR configuration resources overlap with the uplink radio resources on the time axis or on the time axis and the frequency axis, high-priority SR configuration resources or uplink radio resources can be selected and transmitted. When a MAC PDU to be sent using an uplink radio resource has been generated, the priority of the uplink radio resource can be determined as the highest priority among the priorities of the data (or data and MAC CE) included in the generated MAC PDU.

[0071] When no MAC PDU to be transmitted using the uplink radio resource is generated, the priority of the uplink radio resource may be determined as the highest priority among the priorities of the logical channels (or the logical channels and the MAC CE) that may be included in the MAC PDU to be transmitted using the radio resource. Therefore, the priority of the uplink radio resource may be determined as the highest priority among the priorities of the logical channels having data to be transmitted by the UE when the uplink radio resource priority is determined.

[0072] When the priorities of both logical channels and MAC CEs need to be considered, the priority of uplink radio resources can be determined as the highest priority among the priorities of the logical channels with data to be sent by the UE and the MAC CEs to be sent by the UE at the timing of determining the priority of uplink radio resources. The priority of SR configuration resources can be determined as the priority of the logical channel for which SR has been triggered. The priority of SR configuration resources can be determined and used only when SR configuration resources are available, that is, only when SR is triggered. However, the method of determining the priority of SR configuration resources and the priority of uplink radio resources is not limited to the above example, and the priority of SR configuration resources and the priority of uplink radio resources can be determined based on a certain standard or a certain method.

[0073] Figure 4 The embodiment of FIG4 shows that a total of one uplink radio resource 420 is configured for cell 1 410. Each uplink radio resource may be allocated in a dynamic grant or a configured grant manner. Figure 4 The embodiment assumes that the priority of each uplink radio resource is determined using the above method or another predetermined method. The priority of each uplink radio resource may be defined as a specific value (eg, a numerical value).

[0074] Figure 4 In the embodiment, it is assumed that the priority of the first uplink radio resource 420 is 5. One SR configuration resource 460 and two uplink radio resources 470 and 480 are configured for cell 2 450. It is assumed that the priority of the SR configuration resource 460 is 4. It is also assumed that the priority of the second uplink radio resource 470 is 5, and the priority of the third uplink radio resource 480 is 3.

[0075] According to an embodiment, the SR configuration resources and uplink radio resources allocated to the UE by the base station may overlap with each other on the time axis. For example, the first uplink radio resource 420 overlaps with the SR configuration resource 460 on the time axis. The third uplink radio resource 480 overlaps with the SR configuration resource 460 on the time axis in cell 2 450. The SR configuration resource is transmitted in the physical uplink control channel (PUCCH), while the uplink radio resource is transmitted in the physical uplink shared channel (PUSCH), and due to, for example, uplink power, PUCCH transmission and PUSCH transmission may not be performed simultaneously at the same timing. Therefore, when the SR configuration resource 460 is transmitted, the first uplink radio resource 420 and the third uplink radio resource 480 that overlap with the SR configuration resource 460 on the time axis cannot be sent.

[0076] When SR configuration resources overlap with uplink radio resources on the time axis or on the time axis and frequency axis, the SR configuration resources or uplink radio resources with a high priority (i.e., a small priority value) can be selected and transmitted as priority SR transmission or priority uplink radio resources (priority uplink grant) based on the priority of the SR configuration resources and uplink radio resources. In other words, based on the priority value, the SR configuration resource or uplink radio resource with the highest priority value can be selected and used to transmit at least one of data or control information. Priority uplink radio resources may refer to uplink radio resources that are determined to be prioritized for transmission based on the priority value.

[0077] Non-priority SR transmissions or non-priority uplink radio resources (non-priority uplink grants) may not be sent. For example, uplink radio resources or SR configuration resources other than the uplink radio resources or SR configuration resources with the highest priority value may not be used for transmission.

[0078] According to an embodiment of the present disclosure, prioritization may be a process of determining an uplink radio resource to be transmitted based on a priority value of the uplink radio resource and a priority value of an SR configuration resource.

[0079] The priority of the non-priority SR configuration resource determined in the prioritization process may be higher than the priority of another uplink radio resource, thereby preventing the transmission of the other uplink radio resource. In other words, for uplink radio resources (or SR configuration resources) other than the uplink radio resource (or SR configuration resource) with the highest priority value, the uplink radio resources (or SR configuration resources) available for transmission may not be used.

[0080] exist Figure 4In the embodiment, since the priority of SR configuration resource 460 is 4 and the priority of first uplink radio resource 420 is 5, first uplink radio resource 420 can be determined as a non-priority uplink radio resource. However, since third uplink radio resource 480 with a priority of 3 overlaps with SR configuration resource 460 on the time axis and has a higher priority than SR configuration resource 460, SR configuration resource 460 can also be determined as a non-priority SR transmission that is not to be sent.

[0081] In this case, after third uplink radio resource 480, which is a priority uplink radio resource, is transmitted, first uplink radio resource 420 may be transmittable because first uplink radio resource 420 belongs to cell 1 410, which is different from third uplink radio resource 480. There is no other uplink radio resource in cell 1 410 that overlaps with first uplink radio resource 420 in at least one of the time axis or the frequency axis, and SR configuration resource 460 is not transmitted. However, first uplink radio resource 420 is determined to be a non-priority uplink radio resource and therefore cannot be transmitted. This phenomenon can reduce radio resource utilization and degrade key performance indicators (KPIs) such as reliability.

[0082] Figure 5 It is a flowchart of the prioritization process according to the embodiment of the present disclosure. Figure 3 and Figure 4 As described above, the following phenomenon reduces radio resource efficiency and performance: non-priority uplink radio resources or non-priority SR configuration resources cause another uplink radio resource to be determined as a non-priority uplink radio resource that is not to be transmitted. That is, in order to solve the phenomenon that non-priority uplink radio resources or non-priority SR configuration resources determined in the prioritization process cause another transmittable uplink radio resource to be determined as unavailable, Figure 5 The embodiment of the present invention proposes a method of excluding uplink radio resources or SR configuration resources having a lower priority than priority uplink radio resources or priority SR configuration resources from the prioritization process.

[0083] In operation 510, the MAC entity may determine the priority value of the uplink radio resources (uplink grant) and SR transmission (i.e., the transmission on the triggered SR configuration resource) allocated in a specific time period. The MAC entity may be the MAC entity of the UE. The MAC entity may also be the MAC entity of the base station. According to the embodiment of the present disclosure, the above-mentioned Figure 3 The priority value of each uplink radio resource can be determined by the method described in Figure 4 or another method. The priority value of each SR transmission can be determined as described above. Figure 4The priority of the logical channel determined to have triggered the SR transmission may be determined using another method. In operation 510, the MAC entity sets the data or SR transmission with resources to be sent as a priority candidate. According to an embodiment of the present disclosure, the specific time period may be a time defined by the wireless communication system, such as a frame, subframe, time slot or mini-time slot, or a time period arbitrarily set by the UE.

[0084] In operation 520, it may be determined whether a high-priority uplink radio resource or SR transmission having resources to be transmitted among the uplink radio resources and the SR transmission is a priority uplink radio resource or a priority SR transmission. In other words, the priority uplink radio resource or the priority SR transmission may be determined based on the priorities of the uplink radio resource having resources to be transmitted and the SR transmission.

[0085] Since the determination of the priority resource in operation 520 starts from the high priority uplink radio resource or SR transmission, the highest priority uplink radio resource or SR transmission may be determined as the priority uplink radio resource or priority SR transmission.

[0086] In operation 530 , after determining the priority uplink radio resource or the priority SR transmission, uplink radio resources or SR transmissions that overlap with the priority uplink radio resource or the priority SR transmission determined in operation 520 on the time axis may be excluded from priority candidates.

[0087] According to an embodiment of the present disclosure, when the priority resource is a priority uplink radio resource (priority uplink grant) to be transmitted in the PUSCH, the uplink radio resource or SR transmission resource in the same cell or the same bandwidth part (BWP) that overlaps with the priority uplink radio resource on the time axis can be determined as a non-priority uplink radio resource or a non-priority SR transmission.

[0088] When the priority resource is a priority SR transmission to be transmitted in the PUCCH, all uplink radio resources and SR transmission resources in the same MAC entity or UE can be determined as non-priority uplink radio resources or non-priority SR transmissions. Subsequently, non-priority uplink radio resources or non-priority SR transmissions that overlap with the priority resource on the time axis can be excluded from the priority candidates.

[0089] In operation 540, the highest priority uplink radio resource or SR transmission resource among the remaining uplink radio resources and SR transmissions set as priority candidates (i.e., the uplink radio resources and SR transmissions that have not been determined as non-priority uplink radio resources or non-priority SR transmissions) may be determined as priority uplink radio resources or priority SR transmissions. In other words, priority uplink radio resources or SR transmissions other than the priority uplink radio resources or priority SR transmissions determined in operation 520 may be determined.

[0090] According to an embodiment of the present disclosure, the MAC entity may repeatedly exclude uplink radio resources or SR transmissions that overlap with the priority uplink radio resources or priority SR transmissions on the time axis from the priority candidates, as in operation 530. Thereafter, operation 540 may be repeated until no uplink radio resources or SR configuration resources are set as priority candidates.

[0091] when Figure 5 Operations 510 to 540 are applied to Figure 3 When allocating resources as shown, the following prioritization process is performed.

[0092] The third uplink radio resource 340 having the highest priority (p=1) is determined as the priority uplink radio resource. The first uplink radio resource 320 in cell 1 310 that overlaps with the third uplink radio resource 340 on the time axis is determined as a non-priority uplink radio resource and is subsequently excluded from the prioritization process (i.e., excluded from the priority candidates).

[0093] The fourth uplink radio resource 360, which has the second highest priority, is determined as a priority uplink radio resource. The sixth uplink radio resource 380 and the fifth uplink radio resource 370 in cell 2 350, which overlap with the fourth uplink radio resource 360 ​​on the time axis, are determined as non-priority uplink radio resources and are subsequently excluded from the prioritization process (i.e., excluded from the priority candidates).

[0094] The second uplink radio resource 330 with the second highest priority (ie the only current priority candidate) is determined as the priority uplink radio resource. Since there are no more priority candidate resources, the prioritization process ends.

[0095] when Figure 5 Operations 510 to 540 are applied to Figure 4 When allocating resources as shown, the following prioritization process is performed.

[0096] - The third uplink radio resource 480 having the highest priority (p=3) is determined as the priority uplink radio resource. The second uplink radio resource 470 and SR transmission 460 in cell 2 450 that overlap with the third uplink radio resource 480 on the time axis are respectively determined as non-priority uplink radio resources and non-priority SR transmissions, and are subsequently excluded from the prioritization process (i.e., excluded from the priority candidates).

[0097] The first uplink radio resource 420 with the second highest priority (ie, the only current priority candidate) is determined as the priority uplink radio resource. Since there are no more priority candidate resources, the prioritization process ends.

[0098] Figure 6 It is a flowchart of the prioritization process according to the embodiment of the present disclosure. Figure 3 and Figure 4 As described above, the following phenomenon reduces radio resource efficiency and performance: non-priority uplink radio resources or non-priority SR configuration resources cause another uplink radio resource to be determined as not to be transmitted. That is, in order to solve the phenomenon that non-priority uplink radio resources or non-priority SR configuration resources determined in the prioritization process cause another transmittable uplink radio resource to be determined as unavailable, Figure 6 The embodiment of the present invention proposes a method of excluding uplink radio resources or SR configuration resources having a lower priority than priority uplink radio resources or priority SR configuration resources from the prioritization process.

[0099] In operation 610, the MAC entity may determine the priority values ​​of the uplink radio resources (uplink grant) and SR transmission (i.e., the transmission on the triggered SR configuration resource) allocated in a specific time period, and determine whether the uplink radio resources and SR transmission are valid uplink radio resources and valid SR transmission. According to an embodiment of the present disclosure, the above-mentioned Figure 3 or Figure 4 The method described above or another method determines the priority value of each uplink radio resource. The priority value of each SR transmission can be as described above. Figure 4 The priority of the logical channel determined to have triggered SR transmission may be determined using another method.

[0100] According to an embodiment of the present disclosure, valid uplink radio resources or valid SR transmission refer to transmittable uplink radio resources or transmittable SR transmission. For example, SR configuration resources without SR triggering cannot be used for transmission and therefore may not be valid SR transmission. Uplink radio resources that are not available for data transmission may not be valid uplink radio resources. However, the criteria for determining whether uplink radio resources and SR transmission are valid are not limited to the above examples, and whether uplink radio resources and SR transmission are valid may be determined by using various criteria or methods. In operation 610, the MAC entity determines a valid uplink radio resource or a valid SR transmission, and uses the valid resource as a priority candidate in subsequent operations. According to an embodiment of the present disclosure, the specific time period may be a time defined by the wireless communication system, for example, a frame, a subframe, a time slot or a micro time slot, or a time period arbitrarily set by the UE.

[0101] In operation 620, it may be determined whether a high-priority uplink radio resource or SR transmission among valid uplink radio resources and SR transmissions is a priority uplink radio resource or priority SR transmission. That is, the priority uplink radio resource or priority SR transmission may be determined based on the priorities of the valid uplink radio resources and SR transmissions.

[0102] In operation 620 , the high priority uplink radio resource or SR transmission has the highest priority and thus may be determined as a priority uplink radio resource or a priority SR transmission.

[0103] In operation 630, when a certain uplink radio resource or SR transmission is prioritized, an uplink radio resource or SR transmission that overlaps with the priority uplink radio resource or SR transmission on the time axis cannot be prioritized and is therefore determined to be an invalid uplink radio resource or an invalid SR transmission. Invalid uplink radio resources and invalid SR transmissions can be excluded from subsequent operations for determining priority uplink radio resources or priority SR transmissions. In this case, when the priority resource is a priority uplink radio resource (priority uplink grant) to be transmitted in the PUSCH, an uplink radio resource or SR transmission resource in the same cell or the same BWP that overlaps with the priority uplink radio resource on the time axis can be determined as an invalid uplink radio resource or an invalid SR transmission.

[0104] When the priority resource is a priority SR transmission to be transmitted in the PUCCH, all uplink radio resources and SR transmission resources in the same MAC entity or UE may be determined as invalid uplink radio resources or invalid SR transmissions. Non-priority uplink radio resources or non-priority SR transmissions that overlap with the priority resource on the time axis may be invalid and are therefore subsequently excluded from the priority candidates.

[0105] In operation 640, it is determined whether valid uplink radio resources or valid SR transmissions remain in a specific time period. When valid uplink radio resources or valid SR transmissions remain, the process returns to operation 620, and the highest priority resources among the remaining valid uplink radio resources and valid SR transmissions are prioritized. Resources that overlap with the new priority uplink radio resources or priority SR transmissions on the time axis are determined to be invalid. MAC layer duplication Figure 6 The process is repeated until there is no more valid uplink radio resource or valid SR transmission. Here, the invalid uplink radio resource or invalid SR transmission can be determined as a non-priority uplink radio resource or a non-priority SR transmission.

[0106] when Figure 6 Operations 610 to 640 are applied to Figure 3 When allocating resources as shown, the following prioritization process is performed.

[0107] The third uplink radio resource 340 with the highest priority (p=1) among the valid uplink radio resources is determined as a priority uplink radio resource. The first uplink radio resource 320 in cell 1 310, which overlaps with the third uplink radio resource 340 on the time axis, is determined as an invalid uplink radio resource. Finally, the first uplink radio resource 320 is determined as a non-priority uplink radio resource.

[0108] - The fourth uplink radio resource 360, which has the second highest priority among the remaining valid uplink radio resources, is determined as a priority uplink radio resource. The fifth uplink radio resource 370 and the sixth uplink radio resource 380 in cell 2 350, which overlap with the fourth uplink radio resource 360 ​​on the time axis, are determined as invalid uplink radio resources. Finally, the fifth uplink radio resource 370 and the sixth uplink radio resource 380 are determined as non-priority uplink radio resources.

[0109] - The second uplink radio resource 330 (which is the only remaining valid uplink radio resource) is determined as the priority uplink radio resource. Since there are no more priority candidate resources, the prioritization process ends.

[0110] when Figure 6 Operations 610 to 640 are applied to Figure 4 When allocating resources as shown, the following prioritization process is performed.

[0111] - Third uplink radio resource 480, which has the highest priority (p=3) among the valid uplink radio resources and SR transmissions, is determined as a prioritized uplink radio resource. Second uplink radio resource 470 and SR transmission 460 in cell 2 450, which overlap with third uplink radio resource 480 on the time axis, are determined as invalid uplink radio resources and invalid SR transmissions, respectively. Ultimately, second uplink radio resource 470 and SR transmission 460 are not prioritized.

[0112] - The first uplink radio resource 420 (which is the only remaining valid uplink radio resource) is determined as the priority uplink radio resource. Since there are no more priority candidate resources, the prioritization process ends.

[0113] Figure 7 It is a flowchart of the prioritization process according to the embodiment of the present disclosure. Figure 4 As described above, the following phenomenon reduces radio resource efficiency and performance: non-priority uplink radio resources or non-priority SR configuration resources cause another uplink radio resource to be determined as a non-priority uplink radio resource that is not transmitted. In other words, in order to solve the phenomenon that non-priority SR configuration resources determined in the prioritization process cause another transmittable uplink radio resource to be determined as unavailable, Figure 7 The embodiment proposes a method of excluding SR configuration resources having a lower priority than priority uplink radio resources or priority SR configuration resources from the prioritization process.

[0114] In operation 710, initially, the MAC entity may determine the priority values ​​of the uplink radio resources (uplink grants) and SR transmissions (i.e., transmissions on triggered SR configuration resources) allocated in a specific time period. Figure 3 The priority value of each uplink radio resource can be determined by the method described in Figure 4 or another method. The priority value of each SR transmission can be determined as described above. Figure 4 The priority of the logical channel determined to have triggered the SR transmission may be determined by another method. According to an embodiment of the present disclosure, the specific time period may be a time defined by the wireless communication system, such as a frame, a subframe, a time slot or a mini-time slot, or a time period arbitrarily set by the UE.

[0115] In operation 720, it may be determined whether the triggered SR transmission is a priority SR transmission. When there is an uplink radio resource (i.e., a resource to be transmitted in the PUSCH) that overlaps with the triggered SR transmission on the time axis and has a priority higher than or equal to the triggered SR transmission, the SR transmission may not be determined as a priority SR transmission. When there is no uplink radio resource that overlaps with the triggered SR transmission on the time axis and has a priority higher than or equal to the triggered SR transmission, the SR transmission may be determined as a priority SR transmission. When there is a priority SR transmission, the uplink radio resource allocated at the priority SR transmission timing may be determined as a non-priority uplink radio resource. In other words, the uplink radio resource that overlaps with the SR transmission on the time axis may be determined as a non-priority uplink radio resource.

[0116] In operation 730, the MAC entity may determine whether there is a priority SR transmission.

[0117] When priority SR transmission is present in operation 740, since the priority resource is the priority SR transmission to be transmitted in the PUCCH, all uplink radio resources and SR transmission resources in the same MAC entity or UE may be determined as non-priority uplink radio resources or non-priority SR transmission. Whether an uplink radio resource that does not overlap with the SR transmission resource on the time axis is a priority uplink radio resource may be determined based on a preset rule.

[0118] When the SR transmission is not a priority SR transmission, in operation 750, it can be determined whether the uplink radio resource is a priority uplink radio resource based on a preset rule. According to an embodiment of the present disclosure, based on the preset rule, when there is no other uplink radio resource that overlaps with the uplink radio resource and has a higher priority than the uplink radio resource, the uplink radio resource can be determined as a priority uplink radio resource. In operation 750, since the priority SR transmission that overlaps with the uplink radio resource on the time axis is not triggered, the SR transmission that overlaps on the time axis is not considered. Instead, the high-priority resource can be determined as the priority uplink radio resource by simply comparing the priorities of the uplink radio resources that overlap on the time axis in the cell.

[0119] when Figure 7 Operations 710 to 750 are applied to Figure 4 When allocating resources as shown, the following prioritization process is performed.

[0120] Since there is a third uplink radio resource 480 having a higher priority than the SR transmission 460 , the SR transmission 460 is not determined as a priority SR transmission.

[0121] - The third uplink radio resource 480 having the highest priority (p=3) among the uplink radio resources and SR transmission is determined as the priority uplink radio resource.

[0122] The second uplink radio resource 470 overlaps with the third uplink radio resource 480 on the time axis and has a lower priority than the third uplink radio resource 480 , so the second uplink radio resource 470 is determined as a non-priority uplink radio resource.

[0123] The first uplink radio resource 420 does not overlap with any uplink radio resource on the time axis, and thus the first uplink radio resource 420 is determined as a priority uplink radio resource.

[0124] Figure 8 It is a flowchart of the prioritization process according to the embodiment of the present disclosure. Figure 3 and Figure 4 As described above, the following phenomenon reduces radio resource efficiency and performance: non-priority uplink radio resources or non-priority SR configuration resources cause another uplink radio resource to be determined as a non-priority uplink radio resource that is not to be transmitted. That is, in order to solve the phenomenon that non-priority uplink radio resources or non-priority SR configuration resources determined in the prioritization process cause another transmittable uplink radio resource to be determined as unavailable, Figure 8 The embodiment of the present invention proposes a method of excluding uplink radio resources or SR configuration resources having a lower priority than priority uplink radio resources or priority SR configuration resources from the prioritization process.

[0125] In operation 810, the MAC entity may determine the priority values ​​of the uplink radio resources (uplink grant) and SR transmissions (ie, transmissions on triggered SR configuration resources) allocated in a specific time period. Figure 3 or Figure 4 The method described above or another method determines the priority value of each uplink radio resource. The priority value of each SR transmission can be as described above. Figure 4 The priority of the logical channel determined to have triggered the SR transmission may be determined using another method. In operation 810, the MAC entity sets the data or SR transmission with resources to be sent as a priority candidate. According to an embodiment of the present disclosure, the specific time period may be a time defined by the wireless communication system, such as a frame, subframe, time slot or mini-time slot, or a time period arbitrarily set by the UE.

[0126] In operation 820, it may be determined whether one of the uplink radio resource having resources to be transmitted and the SR transmission is a priority uplink radio resource or a priority SR transmission. That is, the priority uplink radio resource or the priority SR transmission may be determined based on the priorities of the uplink radio resource having resources to be transmitted and the SR transmission.

[0127] According to an embodiment of the present disclosure, when there is no other uplink radio resource or SR transmission that overlaps with the uplink radio resource and has a higher priority than the uplink radio resource, the uplink radio resource can be determined as a priority uplink radio resource. When there is no other uplink radio resource that overlaps with the SR transmission and has a higher priority than the SR transmission, the SR transmission can be determined as the priority SR transmission.

[0128] In operation 830 , after determining the priority uplink radio resource or the priority SR transmission, uplink radio resources or SR transmissions that overlap with the priority uplink radio resource or the priority SR transmission determined in operation 820 on the time axis may be excluded from priority candidates.

[0129] According to an embodiment of the present disclosure, when the priority resource is a priority uplink radio resource (priority uplink grant) to be transmitted in the PUSCH, the uplink radio resource or SR transmission resource in the same cell or the same BWP that overlaps with the priority uplink radio resource on the time axis can be determined as a non-priority uplink radio resource or a non-priority SR transmission.

[0130] When the priority resource is a priority SR transmission to be transmitted in the PUCCH, all uplink radio resources and SR transmission resources in the same MAC entity or UE can be determined as non-priority uplink radio resources or non-priority SR transmissions. Subsequently, non-priority uplink radio resources or non-priority SR transmissions that overlap with the priority resource on the time axis can be excluded from the priority candidates.

[0131] In operation 840, when a certain uplink radio resource or SR transmission is excluded from the priority candidates, operation 820 of determining whether each uplink radio resource or SR transmission is a priority uplink radio resource or priority SR transmission is repeated for the remaining uplink radio resources and SR transmissions other than the excluded uplink radio resource or SR transmission. Since the uplink radio resource or SR transmission that is not transmitted is excluded from the prioritization process in operation 830, the prioritization determination result of operation 840 may be different.

[0132] Figure 9 is a block diagram of a UE according to an embodiment of the present disclosure.

[0133] Reference Figure 9 , the UE may include a transceiver 910, a processor 920, and a memory 930. In the present disclosure, the processor 920 may be a circuit, a dedicated integrated circuit, or at least one processor. The UE is not limited to the above examples and may include more than Figure 9 The elements shown may be more or less than those shown. In addition, the transceiver 910, the processor 920, and the memory 930 may be implemented in the form of a single chip.

[0134] The transceiver 910 can transmit a signal to another network entity or receive a signal from another network entity. For example, the transceiver 910 can receive system information or a synchronization signal or a reference signal from a base station. The signals transmitted to or received from a base station or a network entity may include control information and data. To this end, the transceiver 910 may include, for example, a radio frequency (RF) transmitter for up-converting and frequency amplifying a signal to be transmitted, and an RF receiver for low-noise amplification and down-conversion of a received signal. However, the RF transmitter and the RF receiver are merely examples, and the elements of the transceiver 910 are not limited thereto. The transceiver 910 receives a signal via a wireless channel and outputs the signal to the processor 920, and transmits the signal output from the processor 920 via a wireless channel.

[0135] According to an embodiment of the present disclosure, the processor 920 may control the overall operation of the UE. For example, the processor 920 may control the signal flow between blocks based on each flowchart to perform the above operations.

[0136] The memory 930 may store at least one of information transmitted or received by the transceiver 910 and information generated by the processor 920. The memory 930 may store programs and data required for operating the UE. The memory 930 may also store control information or data included in a signal obtained by the UE. The memory 930 may include one or a combination of storage media such as a read-only memory (ROM), a random access memory (RAM), a hard disk, a compact disc ROM (CD-ROM), and a digital versatile disc (DVD). The memory 930 may include a plurality of memories.

[0137] Figure 10 is a block diagram of a base station according to an embodiment of the present disclosure.

[0138] refer to Figure 10 , the base station may include a transceiver 1010, a processor 1020, and a memory 1030. In the present disclosure, the processor 1020 may be a circuit, a dedicated integrated circuit, or at least one processor. The base station is not limited to the above examples, and may include more than Figure 10Furthermore, the transceiver 1010, the processor 1020, and the memory 1030 may be implemented in the form of a single chip.

[0139] The transceiver 1010 can transmit a signal to another network entity or receive a signal from another network entity. For example, the transceiver 1010 can transmit system information or transmit a synchronization signal or a reference signal to the UE. The signals transmitted to or received from the UE or network entity may include control information and data. To this end, the transceiver 1010 may include, for example, an RF transmitter for up-converting and frequency amplifying the signal to be transmitted, and an RF receiver for low-noise amplification and down-conversion of the received signal. However, the RF transmitter and the RF receiver are merely examples, and the elements of the transceiver 1010 are not limited thereto. The transceiver 1010 can receive a signal via a wireless channel and output the signal to the processor 1020, and transmit the signal output from the processor 1020 via the wireless channel.

[0140] According to an embodiment of the present disclosure, the processor 1020 may control the overall operation of the base station. For example, the processor 1020 may control the signal flow between blocks based on each flowchart to perform the above operations.

[0141] The memory 1030 may store at least one of information transmitted or received by the transceiver 1010 and information generated by the processor 1020. The memory 1030 may store programs and data required for operating the base station. The memory 1030 may also store control information or data included in signals received by network entities. The memory 1030 may include one or a combination of storage media such as ROM, RAM, a hard disk, a CD-ROM, and a DVD. The memory 1030 may include multiple memories.

[0142] Figure 11 It is a flowchart of the prioritization process according to the embodiment of the present disclosure. Figure 4 As described above, the following phenomenon reduces radio resource efficiency and performance: non-priority uplink radio resources or non-priority SR configuration resources cause another uplink radio resource to be determined as a non-priority uplink radio resource that is not transmitted. In other words, in order to solve the phenomenon that non-priority SR configuration resources determined in the prioritization process cause another transmittable uplink radio resource to be determined as unavailable, Figure 11 The embodiment proposes a method of excluding SR configuration resources having a lower priority than priority uplink radio resources or priority SR configuration resources from the prioritization process.

[0143] In operation 1110, the MAC entity may determine the priority values ​​of the uplink radio resources (uplink grant) and SR transmissions (ie, transmissions on triggered SR configuration resources) allocated in a specific time period. Figure 3 The priority value of each uplink radio resource can be determined by the method described in Figure 4 or another method. The priority value of each SR transmission can be determined as described above. Figure 4 The priority of the logical channel determined to have triggered the SR transmission may be determined by another method. According to an embodiment of the present disclosure, the specific time period may be a time defined by the wireless communication system, such as a frame, a subframe, a time slot or a mini-time slot, or a time period arbitrarily set by the UE.

[0144] In operation 1120, it can be determined whether the triggered SR transmission is a priority SR transmission. When there is an uplink radio resource (i.e., a resource to be transmitted in the PUSCH) that overlaps with the triggered SR transmission on the time axis and has a priority higher than or equal to the triggered SR transmission, the SR transmission cannot be determined as a priority SR transmission. When there is no uplink radio resource that overlaps with the triggered SR transmission on the time axis and has a priority higher than or equal to the triggered SR transmission, it can be determined by the SR transmission as a priority SR transmission. When there is a priority SR transmission, the uplink radio resource that can be allocated at the priority SR transmission timing is determined as a non-priority uplink radio resource. In other words, the uplink radio resource that overlaps with the SR transmission on the time axis can be determined as a non-priority uplink radio resource. According to an embodiment of the present disclosure, in operation 1120, the MAC entity can initially determine whether the triggered SR transmission is a priority SR transmission in addition to the uplink radio resource.

[0145] In operation 1130, the MAC entity may determine whether each uplink radio resource is a priority uplink radio resource. The MAC entity may determine whether each uplink radio resource is a priority uplink radio resource by determining whether there is another uplink radio resource or a priority SR transmission that overlaps with the uplink radio resource on the time axis. Specifically, when the uplink radio resource is a configuration authorization, and when the following conditions are met, the uplink radio resource may be determined as a priority uplink radio resource: Condition 1) There is no configuration authorization resource that has a higher priority than the uplink radio resource and overlaps with the uplink radio resource on the time axis, Condition 2) There is no dynamic authorization resource that has a higher priority than or equal to the uplink radio resource and overlaps with the uplink radio resource on the time axis, and Condition 3) There is no priority SR transmission that has a higher priority than the uplink radio resource and overlaps with the uplink radio resource on the time axis.

[0146] When an uplink radio resource is a dynamic grant (i.e., a radio resource assigned a cell radio network temporary identifier (C-RNTI) or CS-RNTI), and the following conditions are met, the uplink radio resource may be determined as a priority uplink radio resource: Condition 1) there is no configured grant resource that has a higher priority than the uplink radio resource and overlaps with the uplink radio resource on the time axis, Condition 2) there is no dynamic grant resource that has a higher priority than the uplink radio resource and overlaps with the uplink radio resource on the time axis, and Condition 3) there is no priority SR transmission that has a higher priority than the uplink radio resource and overlaps with the uplink radio resource on the time axis. When the above-mentioned operation of determining whether the uplink radio resource is a priority uplink radio resource is not performed on an uplink radio resource determined as a "non-priority uplink radio resource", that is, when the uplink radio resource has not yet been determined as a priority uplink radio resource or a non-priority uplink radio resource, the operation of comparing with the priority SR transmission (i.e., and Condition 3) is not required.

[0147] when Figure 11 Operations 1110 to 1130 are applied to Figure 4 When allocating resources, the following prioritization is performed.

[0148] Since there is a third uplink radio resource 480 having a higher priority than the SR transmission 460 , the SR transmission 460 is not determined as a priority SR transmission.

[0149] - The third uplink radio resource 480 having the highest priority (p=3) among the uplink radio resources and SR transmission is determined as the priority uplink radio resource.

[0150] The second uplink radio resource 470 overlaps with the third uplink radio resource 480 on the time axis and has a lower priority than the third uplink radio resource 480 , so the second uplink radio resource 470 is determined as a non-priority uplink radio resource.

[0151] The first uplink radio resource 420 does not overlap with any uplink radio resource on the time axis, and thus the first uplink radio resource 420 is determined as a priority uplink radio resource.

[0152] Figure 12 It is a flowchart of the prioritization process according to the embodiment of the present disclosure. Figure 3 and Figure 4As described above, the following phenomenon reduces radio resource efficiency and performance: non-priority uplink radio resources or non-priority SR configuration resources cause another uplink radio resource to be determined as a non-priority uplink radio resource that is not to be transmitted. That is, in order to solve the phenomenon that non-priority uplink radio resources or non-priority SR configuration resources determined in the prioritization process cause another transmittable uplink radio resource to be determined as unavailable, Figure 12 The embodiment of the present invention proposes a method of excluding uplink radio resources or SR configuration resources having a lower priority than priority uplink radio resources or priority SR configuration resources from the prioritization process.

[0153] In operation 1210, the MAC entity may determine a priority value of uplink radio resources (uplink grant) allocated in a specific time period and SR transmission (ie, transmission on triggered SR configuration resources).

[0154] According to an embodiment of the present disclosure, the MAC entity may be a MAC entity of a UE. The MAC entity is not limited to the above example and may also be a MAC entity of a base station. According to an embodiment of the present disclosure, the above description of Figure 3 or Figure 4 The method described above or another method is used to determine the priority value of each uplink radio resource. For example, the priority value of each SR transmission can be as described above with respect to Figure 4 The priority of the logical channel determined to have triggered SR transmission may be determined using another method.

[0155] In operation 1210, the MAC entity sets data or SR transmission with resources to be sent as a priority candidate. According to an embodiment of the present disclosure, the specific time period can be a time defined by the wireless communication system, such as a frame, subframe, time slot or mini-time slot, or a time period arbitrarily set by the UE.

[0156] In operation 1220, it may be determined whether one of the uplink radio resources having resources to be transmitted and the SR transmission, excluding the non-priority uplink radio resources or the SR transmission excluding the non-priority SR transmission, is a priority uplink radio resource or a priority SR transmission. In other words, the priority uplink radio resource or the priority SR transmission may be determined based on the priorities of the uplink radio resources having resources to be transmitted and the SR transmission.

[0157] In other words, the MAC entity may determine whether each uplink radio resource or SR transmission is a priority uplink radio resource or a priority SR transmission in operation 1220. The MAC entity may determine whether each uplink radio resource or SR transmission is a priority uplink radio resource or a priority SR transmission by determining whether there is another uplink radio resource or a priority SR transmission that overlaps with the uplink radio resource or SR transmission on the time axis.

[0158] In this case, the MAC entity may consider resource overlap only for uplink radio resources that are not excluded from the priority candidates (i.e., uplink radio resources other than non-priority uplink radio resources) and SR transmissions that are not excluded from the priority candidates (i.e., SR transmissions other than non-priority SR transmissions). Specifically, in order to determine whether a certain uplink radio resource or SR transmission is a priority uplink radio resource or priority SR transmission, the MAC entity may compare the priorities of the following resources: uplink radio resources that are not excluded from the priority candidates and SR transmissions that are not excluded from the priority candidates among the uplink radio resources that overlap on the time axis in the cell and the SR transmissions that overlap on the time axis in the MAC entity.

[0159] Specifically, when an uplink radio resource is a configuration grant, and when the following conditions are met, the uplink radio resource can be determined as a priority uplink radio resource: Condition 1) There is no configuration grant resource that has a higher priority than the uplink radio resource, overlaps with the uplink radio resource on the time axis, and is not excluded from the priority candidates, Condition 2) There is no dynamic grant resource that has a higher priority than or equal to the uplink radio resource, overlaps with the uplink radio resource on the time axis, and is not excluded from the priority candidates, and Condition 3) There is no SR transmission that has a higher priority than the uplink radio resource, overlaps with the uplink radio resource on the time axis, and is not excluded from the priority candidates. Here, for the configuration grant resource, only the configuration grant resource used for the HARQ process in which the configuration grant timer is not running can be considered.

[0160] When an uplink radio resource is a dynamic grant, the uplink radio resource may be determined as a priority uplink radio resource if the following conditions are met: 1) there is no configured grant resource that has a higher priority than the uplink radio resource, overlaps with the uplink radio resource on the time axis, and is not excluded from the priority candidates; 2) there is no dynamic grant resource that has a higher priority than the uplink radio resource, overlaps with the uplink radio resource on the time axis, and is not excluded from the priority candidates; and 3) there is no SR transmission that has a higher priority than the uplink radio resource, overlaps with the uplink radio resource on the time axis, and is not excluded from the priority candidates. Here, for the configured grant resource, only the configured grant resource for the HARQ process in which the configured grant timer is not running may be considered.

[0161] When an uplink radio resource is excluded from the priority candidates, this means that the uplink radio resource is determined to be a non-priority uplink radio resource (non-priority uplink grant) or one of the configured grant resources using a HARQ process in which the configured grant timer is running. When an SR transmission is excluded from the priority candidates, this means that the SR transmission was not determined as a priority SR transmission in the process of determining the priority SR transmission, or that there is no SR transmission to be sent.

[0162] In operation 1230, the MAC entity may determine priority uplink radio resources or priority SR transmission, and after determining the priority uplink radio resources or priority SR transmission, may exclude uplink radio resources and SR transmissions that overlap with the priority uplink radio resources or priority SR transmission determined in operation 1220 on the time axis from the priority candidates.

[0163] According to an embodiment of the present disclosure, when the priority resource is a priority uplink radio resource (priority uplink grant) to be transmitted in the PUSCH, the uplink radio resource or SR transmission resource in the same cell or the same BWP that overlaps with the priority uplink radio resource on the time axis can be determined as a non-priority uplink radio resource or a non-priority SR transmission.

[0164] When the priority resource is a priority SR transmission to be transmitted in the PUCCH, all uplink radio resources and SR transmission resources in the same MAC entity or UE that overlap with the priority SR transmission on the time axis can be determined as non-priority uplink radio resources or non-priority SR transmissions. Subsequently, the non-priority uplink radio resources or non-priority SR transmissions that overlap with the priority resource on the time axis can be excluded from the priority candidates.

[0165] In operation 1240, the MAC entity may determine whether one of the remaining uplink radio resources and SR transmissions set as priority candidates (i.e., uplink radio resources and SR transmissions that have not been determined as non-priority uplink radio resources or non-priority SR transmissions) is a priority uplink radio resource or priority SR transmission. In other words, the priority uplink radio resource or priority SR transmission may be determined based on the priority of the uplink radio resource and SR transmission with the resource to be transmitted. In other words, the priority uplink radio resource or SR transmission other than the priority uplink radio resource or priority SR transmission determined in operation 1220 may be determined.

[0166] According to an embodiment of the present disclosure, the MAC entity may repeatedly exclude uplink radio resources or SR transmissions that overlap with the priority uplink radio resources or priority SR transmissions on the time axis from the priority candidates, as in operation 1230. Thereafter, operation 1240 may be repeated until there are no remaining uplink radio resources or SR configuration resources set as priority candidates.

[0167] when Figure 12 Operations 1210 to 1240 apply to Figure 3 When configuring the resources shown, the following prioritization process is performed. The order in which resources are selected may vary depending on the implementation, and the results of prioritizing the resources may vary accordingly.

[0168] - Third uplink radio resource 340 is selected. Among the SR transmission resources configured in the MAC entity that are not excluded from the priority candidates and overlap on the time axis, and the uplink radio resources in the cell that are not excluded from the priority candidates and overlap on the time axis, third uplink radio resource 340 has the highest priority (p=1), and is therefore determined as the priority uplink radio resource. First uplink radio resource 320 in cell 1 310, which overlaps with third uplink radio resource 340 on the time axis, is determined as a non-priority uplink radio resource and is subsequently excluded from the prioritization process (i.e., excluded from the priority candidates).

[0169] Fourth uplink radio resource 360 ​​is selected. Among the SR transmission resources configured in the MAC entity that are not excluded from the priority candidates and overlap in time, and the uplink radio resources in the cell that are not excluded from the priority candidates and overlap in time, fourth uplink radio resource 360 ​​has the highest priority and is therefore determined as the priority uplink radio resource. Sixth uplink radio resource 380 and fifth uplink radio resource 370 in cell 2 350, which overlap with fourth uplink radio resource 360 ​​in time, are determined as non-priority uplink radio resources and are subsequently excluded from the prioritization process (i.e., excluded from the priority candidates).

[0170] The second uplink radio resource 330, which is the only currently available priority candidate, is selected. Among the SR transmission resources configured in the MAC entity that are not excluded from the priority candidates and overlap in time, and the uplink radio resources in the cell that are not excluded from the priority candidates and overlap in time, the second uplink radio resource 330 has the highest priority and is therefore determined as the priority uplink radio resource. Since there are no more priority candidate resources, the prioritization process terminates.

[0171] when Figure 12 Operations 1210 to 1240 apply to Figure 4 When allocating resources as shown, the following prioritization process is performed.

[0172] - Third uplink radio resource 480 is selected. Among the SR transmission resources configured in the MAC entity that are not excluded from the priority candidates and overlap on the time axis, and the uplink radio resources in the cell that are not excluded from the priority candidates and overlap on the time axis, third uplink radio resource 480 has the highest priority (p=3) and is therefore determined as the priority uplink radio resource. Second uplink radio resource 470 and SR transmission 460 of cell 2 450 that overlap with third uplink radio resource 480 on the time axis are respectively determined as non-priority uplink radio resources and non-priority SR transmissions, and are subsequently excluded from the prioritization process (i.e., excluded from the priority candidates).

[0173] The first uplink radio resource 420, which is the only currently available priority candidate, is selected. Among the SR transmission resources configured in the MAC entity that are not excluded from the priority candidates and overlap in time, and the uplink radio resources in the cell that are not excluded from the priority candidates and overlap in time, the first uplink radio resource 420 has the highest priority and is therefore determined as the priority uplink radio resource. Since there are no more priority candidate resources, the prioritization process terminates.

[0174] The UE may determine which uplink radio resource or SR transmission to start performing operations 1220 to 1240 based on a preset rule. For example, operations 1220 to 1240 may be performed in descending order of priority starting from a high-priority uplink radio resource or SR transmission.

[0175] The methods according to the embodiments described in the claims or the specification of the present disclosure can be implemented by hardware, software, or a combination of both.

[0176] When implemented in software, a computer-readable storage medium storing one or more programs (e.g., software modules) may be provided. The one or more programs stored in the computer-readable storage medium are configured to be executed by one or more processors in an electronic device. The one or more programs include instructions that instruct the electronic device to perform the method according to the embodiments described in the claims or description of the present disclosure.

[0177] The program (e.g., software module or software) may be stored in random access memory (RAM), non-volatile memory (including flash memory), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), magnetic disk storage, compact disk ROM (CD-ROM), digital versatile disk (DVD), another optical storage device, or magnetic tape cassette. Alternatively, the program may be stored in a memory comprising a combination of some or all of the above storage media. Each type of such memory may be provided in multiple quantities.

[0178] In addition, the program can be stored in an attachable storage device that can be accessed through one or a combination of communication networks such as the Internet, an intranet, a local area network (LAN), a wide area network (WLAN), and a storage area network (SAN). Such a storage device can access the device used to implement the embodiments of the present disclosure through an external port. The attached storage device on the communication network can also access the device used to implement the embodiments of the present disclosure.

[0179] In the above embodiments of the present disclosure, each element included in the present disclosure is expressed in a singular or plural form, depending on the specific embodiment proposed. However, the singular or plural form is appropriately selected for the situation assumed for convenience of explanation, and does not limit the present disclosure. An element expressed in a plural form may include a single element, and an element expressed in a singular form may include multiple elements.

[0180] Although one or more embodiments of the present disclosure have been described above, it should be understood that various changes in form and detail may be made without departing from the scope of the present disclosure. Therefore, the scope of the present disclosure should not be interpreted as being limited to the above-described embodiments, but should be defined by the appended claims and their equivalents. For example, a base station and a UE may operate in combination with parts of different embodiments of the present disclosure. The embodiments of the present disclosure may be applied to other communication systems and may be modified based on the technical aspects of the embodiments.

Claims

1. A method performed by a user equipment (UE) in a wireless communication system, the method comprising: identifying, by a medium access control (MAC) entity, a priority of the uplink resource and a priority of at least one other uplink resource; identifying, by the MAC entity, a prioritized resource based on the priority of the uplink resource and the priority of the at least one other uplink resource; as well as identifying, by the MAC entity, at least one overlapping uplink resource that overlaps with the prioritized resource in the time domain as a deprioritized resource, The at least one overlapping uplink resource is excluded from candidates for logical channel-based prioritization.

2. The method according to claim 1, in, said at least one other uplink resource is not excluded from said candidates for logical channel based prioritization, wherein, in the absence of the at least one other uplink resource that overlaps with the uplink resource in the time domain and has a higher priority than the uplink resource, the uplink resource is identified as the prioritized resource, The uplink resources correspond to dynamic uplink grants, configured uplink grants, or resources associated with scheduling request (SR) transmissions, and The at least one other uplink resource corresponds to at least one of the dynamic uplink grant, the configured uplink grant, or resources related to the SR transmission.

3. The method according to claim 1, in, The uplink resource corresponds to a dynamic uplink grant, and The uplink resource is identified as the prioritized resource in the following circumstances: there is no configured uplink authorization that overlaps with the uplink resource and has a higher priority than the uplink resource and is not excluded from the candidate items, and there is no SR transmission that overlaps with the uplink resource and has a higher priority than the uplink resource and is not excluded from the candidate items.

4. The method according to claim 1, in, The uplink resource corresponds to a configured uplink grant, and The uplink resource is identified as the prioritized resource under the following circumstances: there is no other configured uplink authorization that overlaps with the uplink resource and has a higher priority than the uplink resource and is not excluded from the candidate items, and there is no dynamic uplink authorization that overlaps with the uplink resource and has a priority higher than or equal to the uplink resource and is not excluded from the candidate items, and there is no SR transmission that overlaps with the uplink resource and has a higher priority than the uplink resource and is not excluded from the candidate items.

5. The method according to claim 1, in, The priority of the uplink resource is identified by the MAC entity based on the priority of the logical channels multiplexed in the MAC protocol data unit PDU, or the priority of the logical channels available for multiplexing in the MAC PDU.

6. The method according to claim 1, in, The prioritized resources are identified based on a priority order of the uplink resources.

7. The method according to claim 1, in, The prioritized resource is identified as a resource corresponding to a highest priority among the uplink resource and the at least one other uplink resource.

8. A user equipment (UE) implemented in a wireless communication system, the UE comprising: transceiver; as well as at least one processor coupled to the transceiver and configured to: identifying, by a medium access control (MAC) entity, a priority of the uplink resource and a priority of at least one other uplink resource; identifying, by the MAC entity, a prioritized resource based on the priority of the uplink resource and the priority of the at least one other uplink resource; as well as identifying, by the MAC entity, at least one overlapping uplink resource that overlaps with the prioritized resource in the time domain as a deprioritized resource, The at least one overlapping uplink resource is excluded from candidates for logical channel-based prioritization.

9. The UE according to claim 8, in, said at least one other uplink resource is not excluded from said candidates for logical channel based prioritization, wherein, in the absence of the at least one other uplink resource that overlaps with the uplink resource in the time domain and has a higher priority than the uplink resource, the uplink resource is identified as the prioritized resource, The uplink resources correspond to dynamic uplink grants, configured uplink grants, or resources associated with scheduling request (SR) transmissions, and The at least one other uplink resource corresponds to at least one of the dynamic uplink grant, the configured uplink grant, or resources related to the SR transmission.

10. The UE according to claim 8, wherein: The uplink resource corresponds to a dynamic uplink grant, and The uplink resource is identified as the prioritized resource in the following circumstances: there is no configured uplink authorization that overlaps with the uplink resource and has a higher priority than the uplink resource and is not excluded from the candidate items, and there is no SR transmission that overlaps with the uplink resource and has a higher priority than the uplink resource and is not excluded from the candidate items.

11. The UE according to claim 8, wherein: The uplink resource corresponds to a configured uplink grant, and The uplink resource is identified as the prioritized resource under the following circumstances: there is no other configured uplink authorization that overlaps with the uplink resource and has a higher priority than the uplink resource and is not excluded from the candidate items, and there is no dynamic uplink authorization that overlaps with the uplink resource and has a priority higher than or equal to the uplink resource and is not excluded from the candidate items, and there is no SR transmission that overlaps with the uplink resource and has a higher priority than the uplink resource and is not excluded from the candidate items.

12. The UE according to claim 8, wherein: The priority of the uplink resource is identified by the MAC entity based on the priority of the logical channels multiplexed in the MAC protocol data unit PDU, or the priority of the logical channels available for multiplexing in the MAC PDU.

13. The UE according to claim 8, wherein: The prioritized resources are identified based on a priority order of the uplink resources, and The prioritized resource is identified as a resource corresponding to a highest priority among the uplink resource and the at least one other uplink resource.

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