KR20210044694A - System and method for physical downlink control channel monitoring - Google Patents

Abstract

Provided are a method and an apparatus for monitoring a physical downlink control channel (PDCCH). A first time interval from an end of the PDCCH to a start of a physical downlink shared channel (PDSCH) is set. A second time interval from the end of the PDSCH to the start of a physical uplink control channel (PUCCH) is set. A high priority channel and a low priority channel are configured in a PDCCH monitoring span. At least one variable indicating a minimum additional time required by a UE to process the low priority channel is received from the UE. Based on the at least one variable, the UE is configured with at least one offset used to increase at least one of the first time interval and the second time interval.

Description

System and method for monitoring a physical downlink control channel TECHNICAL FIELD [SYSTEM AND METHOD FOR PHYSICAL DOWNLINK CONTROL CHANNEL MONITORING]

The present disclosure relates generally to channel monitoring, and more particularly to physical downlink control channel (PDCCH) monitoring for spans configured for both high priority channels and low priority channels.

In the 3rd Generation Partnership Project (3GPP) 5th Generation (5G) Release 16 (rel-16), an improved PDCCH monitoring opportunity for ultra-reliable low latency communication (uRLLC) was presented. In addition, the user equipment (UE) control channel element (CCE) and blind decoding (BD) functions are defined according to the span, not according to the slot. Span is a number of consecutive symbols within a slot in which the UE is configured to monitor the PDCCH. The span is defined based on the search space (SS) and monitoring opportunity (MO) configured for any serving cell, and is defined based on the set (X, Y) reported by the UE. X is the spacing between the start of two consecutive spans and Y is the span length of the symbol. The span starts at the first symbol where the PDCCH MO starts and ends at the last symbol where the PDCCH MO ends. The same span pattern is repeated in each slot.

For 5G Release 15 (rel-15) capability, the BD/CCE limit is defined per slot as a function of the cell's subcarrier spacing (SCS). For 5G rel-16 capability, BD/CCE limits can be defined per span.

When the UE supports both 5G rel-15 capability and 5G rel-16 capability, PDCCH monitoring is performed for both ultra-wideband (eMBB) (low priority channel) and uRLLC (high priority channel).

In the case of a 5G rel-16 UE supporting improved PDCCH monitoring capability, PDCCH monitoring based on 5G rel-15 capability for eMBB and PDCCH monitoring based on 5G rel-16 capability for uRLLC can be configured for the UE on the same carrier. have. Specifically, the UE is configured with hybrid slot-based and span-based PDCCH monitoring on a serving cell. In the case of the 5G rel-16 PDCCH monitoring capability, the limit on the maximum number of non-overlapping CCEs for channel estimation per PDCCH monitoring span is the same for multiple spans within a slot.

The UE performs BD/CCE monitoring per slot for eMBB and BD/CCE monitoring per span for uRLLC. The uRLLC search space (SS) and eMBB SS may correspond to different control resource sets (CORESET). The uRLLC SS and eMBB SS also have different SS identifiers (IDs) when they have the same CORESET. uRLLC and eMBB may be classified according to a corresponding downlink control information (DCI) format or size. Accordingly, the UE may determine whether any BD/CCE corresponds to uRLLC or eMBB before processing the corresponding PDCCH candidate.

If the UE has two processing pipelines, the UE can route the BD/CCE to one of the two pipelines according to the service type or priority (e.g., high priority uRLLC or low priority eMBB). . Or, if the UE has a single pipeline, the UE gives priority to the BD/CCE candidate of uRLLC over the BD/CCE candidate of eMBB. For example, the UE first processes all BD/CCE candidates of uRLLC in a certain span, and starts processing the BD/CCE candidates of eMBB only when it is completed. However, this prioritization may result in the eMBB process not being able to meet the timeline.

An object of the present invention is to provide a method of monitoring a physical downlink control channel (PDCCH) by a base station (BS).

It is an object of the present invention to provide a method of monitoring a physical downlink control channel (PDCCH) by a user equipment (UE).

It is an object of the present invention to provide a base station (BS) including a processor and a non-transitory computer-readable storage medium for storing instructions.

An object of the present invention is to provide a user equipment (UE) including a processor and a non-transitory computer-readable storage medium storing an instruction.

The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

According to an embodiment, a method of monitoring a physical downlink control channel (PDCCH) by a base station (BS) is provided. A first time interval from the end of the PDCCH to the start of the physical downlink shared channel (PDSCH) is set. A second time interval from the end of the PDSCH to the start of the physical uplink control channel (PUCCH) is set. In the PDCCH monitoring span, a high-priority channel and a low-priority channel are configured. At least one variable representing the minimum additional time required by the UE to process the low priority channel is received from the user equipment (UE). Based on the at least one variable, the UE is configured with at least one offset used to increase at least one of the first time interval and the second time interval.

According to an embodiment, a method of monitoring a physical downlink control channel (PDCCH) by a base station (BS) is provided. A time interval from the end of the PDCCH to the start of the physical uplink shared channel (PUSCH) is set. In the PDCCH monitoring span, a high-priority channel and a low-priority channel are configured. A variable representing the minimum additional time required by the UE to process the low priority channel is received from the user equipment (UE). Based on the variable, the UE is configured with an offset used to increase the time interval.

According to an embodiment, a method of monitoring a physical downlink control channel (PDCCH) by a user equipment (UE) is provided. When the base station (BS) configures a high-priority channel and a low-priority channel in the PDCCH monitoring span, at least one variable indicating the minimum additional time required by the UE to process the low-priority channel is the BS. Is sent to. At least one offset based on at least one variable is received from the BS. At least one of the first time interval and the second time interval is increased based on the at least one offset. The first time interval is set from the end of the PDCCH to the start of the physical downlink shared channel (PDSCH), and the second time interval is set from the end of the PDSCH to the start of the physical uplink control channel (PUCCH).

According to an embodiment, a method of monitoring a physical downlink control channel (PDCCH) by a user equipment (UE) is provided. When the base station (BS) configures a high-priority channel and a low-priority channel in the PDCCH monitoring span, a variable indicating the minimum additional time required by the UE to process the low-priority channel is transmitted to the BS. . An offset based on the variable is received from the BS. The time interval is increased based on the offset. The time interval is set from the end of the PDCCH to the start of the physical uplink shared channel (PUSCH).

According to one embodiment, there is provided a base station (BS) comprising a processor and a non-transitory computer-readable storage medium for storing instructions. When executed, the instruction sets the first time interval from the end of the physical downlink control channel (PDCCH) to the start of the physical downlink shared channel (PDSCH), and the physical uplink control channel (PUCCH) at the end of the PDSCH. Set a second time interval until the start of, configure a high-priority channel and a low-priority channel in the PDCCH monitoring span, and request the UE to process a low-priority channel from the user equipment (UE). To configure the UE with at least one offset used to increase at least one of the first time interval and the second time interval, based on the at least one variable and receiving at least one variable indicating the minimum additional time to be do.

According to one embodiment, a BS is provided that includes a processor and a non-transitory computer-readable storage medium storing instructions. When executed, the instruction sets the first time interval from the end of the physical downlink control channel (PDCCH) to the start of the physical uplink shared channel (PUSCH), and the high priority channel and the low priority channel in the PDCCH monitoring span. It is used to configure the channel of the priority and, from the user equipment (UE), receive a variable representing the minimum additional time required by the UE to process the channel of the lower priority, and based on the variable, to increase the time interval. Configure the UE with an offset.

According to one embodiment, a UE is provided that includes a processor and a non-transitory computer-readable storage medium storing instructions. When executed, the command is that when the processor configures a high priority channel and a low priority channel in the physical downlink control channel (PDCCH) monitoring span, the processor sends the UE to process the low priority channel. At least one variable representing the required minimum additional time is transmitted to the BS, and at least one offset based on the at least one variable is received from the BS, and a first time interval and a second time based on the at least one offset Try increasing at least one of the intervals. The first time interval is set from the end of the PDCCH to the start of the physical downlink shared channel (PDSCH), and the second time interval is set from the end of the PDSCH to the start of the physical uplink control channel (PUCCH).

According to one embodiment, a UE is provided that includes a processor and a non-transitory computer-readable storage medium storing instructions. When executed, the command is that when the processor configures a high priority channel and a low priority channel in the physical downlink control channel (PDCCH) monitoring span, the processor sends the UE to process the low priority channel. A variable representing the required minimum additional time is transmitted to the BS, an offset based on one variable is received from the BS, and the time interval based on the offset is increased. The time interval is set from the end of the PDCCH to the start of the physical uplink shared channel (PUSCH).

The above and other aspects, features, and advantages of certain embodiments of the present disclosure will become more apparent from the following detailed description in connection with the accompanying drawings.
1 is a diagram illustrating a span composed of two MOs for uRLLC and one MO for eMBB, according to an embodiment.
2 is a diagram illustrating a span composed of two MOs for uRLLC and one MO for eMBB according to another embodiment.
3 is a flowchart illustrating a method of monitoring a PDCCH by a BS according to an embodiment.
4 is a flowchart illustrating a method of monitoring a PDCCH by a BS according to another embodiment.
5 is a flowchart illustrating a method of monitoring a PDCCH by a UE according to an embodiment.
6 is a flowchart illustrating a method of monitoring a PDCCH by a UE according to another embodiment.
7 is a block diagram of an electronic device in a network environment, according to an exemplary embodiment.

Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. It should be noted that the same elements are designated by the same reference numerals even when shown in different drawings. In the following description, specific details, such as detailed configurations and components, are provided merely to aid in an overall understanding of embodiments of the present disclosure. Therefore, it is obvious to those skilled in the art that various changes and modifications of the embodiments described herein are possible within the limit without departing from the scope of the present disclosure. In addition, descriptions of known functions and configurations have been omitted for clarity and conciseness. The terms described below are terms defined in consideration of the functions of the present disclosure and may be different according to the user, the intention or custom of the user. Therefore, the definition of the term should be made based on the contents throughout the present specification.

The present disclosure may have various modifications and embodiments, of which embodiments will be described in detail with reference to the accompanying drawings. However, it should be understood that the present disclosure is not limited to the embodiments, and all modifications, equivalents, and alternatives are included within the scope of the present disclosure.

Terms including ordinal numbers such as first, second, etc. may be used to describe various elements, but structural elements are not limited by these terms. This term is only used to distinguish one element from another. For example, without departing from the scope of the present disclosure, a first structural element may be referred to as a second structural element. Similarly, the second structural element may also be referred to as the first structural element. The term “and/or” as used herein includes any and all combinations of one or more related items.

Terms used in the present specification are used to describe various embodiments of the present disclosure and are not intended to limit the present disclosure. The singular form includes the plural form unless the context specifies otherwise. In the present specification, the terms "comprise" or "have" mean the presence of features, numbers, steps, actions, components, parts, or combinations thereof, and one or more other features, numbers, steps, actions, components, It should be understood that the presence of parts or combinations thereof, or the possibility of addition thereof, is not excluded.

Unless otherwise defined, all terms used herein have the same meaning as understood by one of ordinary skill in the art to which this disclosure belongs. Terms, such as terms defined in a commonly used dictionary, should be interpreted as having the same meaning as the context in the related art field, and should not be interpreted as having an ideal or excessively formal meaning unless clearly defined in the present specification. .

The electronic device according to an embodiment may be one of various types of electronic devices. The electronic device may include a portable communication device (eg, a smart phone), a computer, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance. However, the electronic device is not limited to that described above.

The terms used in this specification are not intended to limit the present disclosure, but are intended to include various changes, equivalents, or substitutes for the corresponding embodiment. In connection with the description of the accompanying drawings, like reference numerals may be used to refer to similar or related elements. The singular form of a noun corresponding to an item may include one or more things, unless otherwise specified in the relevant context. As used herein, “A or B”, “at least one of A and B”, “at least one of A or B”, “A, B or C”, “at least one of A, B and C” , And each phrase such as "at least one of A, B, or C" may include all possible combinations of the listed items with the corresponding one of the phrase. As used herein, terms such as “first”, “second”, “first” and “second” may be used to distinguish a corresponding component from other components, but in other aspects (for example, There is no intention to limit the constituents (of importance or order). With or without the term "operably" or "communicatively" an element (e.g., a first element), "connected to", "connected with" another element (e.g., a second element) , When referred to as “connected to” or “connected to”, this indicates that the element can be coupled with another element directly (eg, wired), wirelessly, or via a third element.

As used herein, the term "module" may include units implemented in hardware, software, or firmware, and other terms such as "logic", "logic block", "part" and "circuit" They can be used interchangeably. A module may be a single integrated component or a small unit or part configured to perform one or more functions. For example, according to an embodiment, the module may be implemented in the form of an application specific integrated circuit (ASIC).

According to an embodiment, when the UE performs a slot-based and span-based mixed operation in a serving cell and cannot simultaneously process uRLLC and eMBB traffic, eMBB PDCCH, PDSCH, PUSCH, or other types of eMBB channels Additional minimal processing time is provided. The additional processing time is determined according to UE capability signaling and RRC configuration signaling.

Thus, the UE can handle both eMBB and uRLLC control and data channels without significantly affecting their respective requirements. The uRLLC's latency requirements remain unchanged, but the eMBB's latency requirements are slightly tweaked.

To ease the eMBB processing time, the UE processes eMBB by increasing the PDCCH-PDSCH or PDSCH-PUCCH or PDCCH-PUSCH time interval.

Referring first to FIG. 1, this diagram illustrates a span composed of two MOs for uRLLC and one MO for eMBB, according to an embodiment.

Within the span 102 of the PDCCH, the UE performs BD/CCE processing for uRLLC in the first MO, MO1 104 and the third MO, MO3 108. When the processing is completed in MO1 104 and MO3 108, the UE executes BD/CCE processing for the eMBB in MO2 106, which is the second MO.

If MO1 (104) and MO3 (108) are not present in span (102) and eMBB is scheduled only on MO2 (106), the scheduling offset interval T0 and interval T1 between PDSCH and hybrid automatic repeat request (HARQ) is the minimum processing time. It is set based on ability.

T0 is a time interval between the end of the PDCCH and the start of the eMBB PDSCH 110 in the span 102. T1 is a time interval between the end of the eMBB PDSCH 110 and the start of the eMBB HARQ acknowledgment (ACK) 112 (ie, PUCCH). T0 is determined by a time domain resource allocation (TDRA) field of eMBB DCI, and T1 is determined by a PUCCH format indicator (PFI) field of eMBB DCI and a slot-based interval field between PDSCH and HARQ-ACK.

을 T0에 추가하거나 오프셋

을 T1에 추가하여 제공된다.However, if you add MO1 104 and MO3 108 to span 102, and consequently process both eMBB and uRLLC in span 102, the eMBB processing time mitigation is offset.

Add to T0 or offset

Is provided by adding to T1.

는 UE가 eMBB PDSCH(110)에서 PDSCH 수신에 필요로 하는 최소의 추가 시간을 나타내는 UE 능력 변수이다. 변수

는 UE가 eMBB HARQ-ACK(112)에 대한 HARQ-ACK 준비를 위해 필요로 하는 최소의 추가 시간을 나타내는 UE 능력 변수이다. 이 두 변수는 UE에서 BS로 제공된다. 변수

는 SCS (스케줄링 셀 및 스케줄링된 셀)의 다른 값에 대해 보고될 수 있으며, 변수

는 SCS (PUCCH 전송을 위한 스케줄링된 셀 및 UL 셀)의 다른 값에 대해 보고될 수 있다.variable

Is a UE capability variable indicating the minimum additional time required by the UE to receive the PDSCH in the eMBB PDSCH 110. variable

Is a UE capability variable indicating the minimum additional time required by the UE for HARQ-ACK preparation for the eMBB HARQ-ACK 112. These two variables are provided from the UE to the BS. variable

Can be reported for different values of the SCS (scheduled cell and scheduled cell), and the variable

May be reported for different values of SCS (scheduled cell and UL cell for PUCCH transmission).

The BS determines the offsets d0 and d1 based on the received corresponding variable and configures the UE through RRC. Specifically, the time between the PDCCH and the PDSCH is increased by adding the offset d0 to T0, and the time between the PDSCH and the HARQ-ACK (PUCCH) is increased by adding the offset d1 to T1. The UE may be configured with an offset d0 for different values of SCS (scheduling cell and scheduled cell), and may be configured with an offset d1 for different values of SCS (scheduled cell and UL cell for PUCCH transmission) of different values. I can.

Reference is now made to FIG. 2, which illustrates a span composed of two MOs for uRLLC and one MO for eMBB according to another embodiment.

Similar to the embodiment of FIG. 1, within the span 202 of the PDCCH, the UE performs BD/CCE processing for uRLLC in MO1 204 as the first MO and MO3 208 as the third MO. When the processing of MO1 204 and MO3 208 is completed, the UE performs BD/CCE processing on the eMBB in MO2 206, which is the second MO.

If MO1 204 and MO3 208 are not present in span 202 and eMBB is scheduled only in MO2 206, the scheduling offset interval T2 is set based on the minimum processing time capability. T2 is a time interval between the end of the PDCCH and the start of the eMBB PUSCH 214. T2 is determined by eMBB DCI.

의 추가를 통해 제공된다. 변수

는 UE가 eMBB PUSCH(214)에서 PUSCH 전송에 필요한 최소 추가 시간을 나타내는 UE 능력 변수이다. 변수는 UE에서 BS로 제공된다. 변수는 SCS (스케줄링 셀 및 PUSHC 셀)의 다른 값에 대해 보고될 수 있다.If you add MO1 204 and MO3 208 to span 202, and as a result of processing both eMBB and uRLLC in span 202, the eMBB processing time mitigation is offset.

It is provided through the addition of. variable

Is a UE capability variable indicating the minimum additional time required for the UE to transmit PUSCH in the eMBB PUSCH 214. Variables are provided from the UE to the BS. Variables can be reported for different values of SCS (scheduling cell and PUSHC cell).

The BS determines the offset d2 based on the received variable, and configures the terminal through RRC. Specifically, the offset d2 is added to T2 to increase the time between the PDCCH and PUSCH. The UE may be configured with an offset d2 for different values of the SCS (scheduling cell and PUSHC cell).

을 T0에 추가하고, 오프셋

을 T1에 추가하고/하거나, 오프셋

를 T2에 추가한다. According to an embodiment, different MOs corresponding to different service types or priorities (high priority uRLLC and low priority eMBB) are configured in slots as opposed to span as described above in FIGS. 1 and 2 When it becomes, the UE is also offset

Add to T0, offset

Add to T1 and/or offset

Is added to T2.

을 Tother에 추가할 수 있다. 시간 간격 Tother는 eMBB DCI에 표시된다. 변수

는 UE가 eMBB 처리에 필요로 하는 최소의 추가 시간을 나타내는 UE 능력 변수다. UE는 BS에 변수를 제공하고, BS는 RRC 시그널링을 통해 오프셋 dother로 UE를 구성한다.Aperiodic channel state information (CSI) request/report time offset, or sounding reference signal (SRS) transmission time offset may be defined as a time interval Tother. When different MOs corresponding to different service types or priorities (high priority uRLLC and low priority eMBB) are configured in a slot or PDCCH MO span, the UE is offset

Can be added to Tother. The time interval Tother is displayed on the eMBB DCI. variable

Is a UE capability variable indicating the minimum additional time required by the UE to process eMBB. The UE provides a variable to the BS, and the BS configures the UE with an offset dother through RRC signaling.

The scheduling time interval Ti and the added offset di may be defined as time (seconds) or OFDM symbol (OS). The scheduling time interval Ti and the added offset di may be a function of the numerology or SCS (scheduled or scheduled) of the serving cell.

When uRLLC traffic is scheduled in the uRLLC MO in a span or slot, the UE may assume relaxation for eMBB processing time (ie, one or more of the added offsets are not zero). In particular, eMBB relaxation is not assumed when uRLLC is not scheduled in a span or slot.

The end symbol of the latest uRLLC MO (e.g., MO1 104 of FIG. 1 or MO1 (204) of FIG. 2) and the start symbol of eMBB MO (e.g., MO2 106 of FIG. 1 or When there is a first minimum number of OFDM symbols between MO2 (206)), and the end symbol of the eMBB MO (for example, MO2 106 of FIG. 1 or MO2 206 of FIG. 2) and the next uRLLC MO When there is a second minimum number of symbols between the start symbols (eg, MO3 108 of FIG. 1 or MO3 208 of FIG. 2), the UE is not provided with mitigation for eMBB processing time (i.e., The added offset is 0).

3 is a flowchart illustrating a method of monitoring a PDCCH by a BS according to an embodiment. Specifically, the flowchart of FIG. 3 corresponds to the embodiment shown in FIG. 1.

At 302, a first time interval from the end of the PDCCH to the start of the PDSCH is set. In 304, a second time interval is set from the end of the PDSCH to the start of the PUCCH. The first time interval and the second time interval are set according to the configuration of a low priority channel (no high priority channel) in the PDCCH monitoring span. The PDCCH monitoring span is for one of BD and CCE monitoring, and is implemented as one slot or one of a plurality of spans within one slot.

At 306, a high priority channel and a low priority channel are configured in the PDCCH monitoring span. A high priority channel may be implemented as a uRLLC service type, and a low priority channel may be implemented as an eMBB service type.

At 308, at least one variable is received indicating the minimum additional time required by the UE to process the low priority channel. The at least one variable may include a first variable indicating a minimum additional time required by the UE for PDSCH reception and a second variable indicating a minimum additional time required by the UE for HARQ-ACK preparation.

At 310, based on the at least one variable, the UE is configured with at least one offset used to increase at least one of the first time interval and the second time interval. The UE may be configured by the BS through RRC signaling. The at least one offset may include a first offset based on a first variable to increase the first time interval and a second offset based on a second variable to increase the second time interval.

4 is a flowchart illustrating a method of monitoring a PDCCH by a BS according to another embodiment. Specifically, the flowchart of FIG. 4 corresponds to the embodiment shown in FIG. 2.

At 402, a time interval from the end of the PDCCH to the start of the PUSCH is set. The time interval is set based on the configuration of a low priority channel (no high priority channel) in the PDCCH monitoring span. The PDCCH monitoring span is for one of BD and CCE monitoring, and is implemented as a slot or one of a plurality of spans within the slot.

At 404, a high priority channel and a low priority channel are configured in the PDCCH monitoring span. A high priority channel may be implemented as a uRLLC service type, and a low priority channel may be implemented as an eMBB service type.

At 406, a variable is received from the UE indicating the minimum additional time required by the UE to process the low priority channel. This variable represents the minimum additional time required by the UE for PUSCH transmission. At 408, based on this variable, the UE is configured with an offset used to increase the time interval. The UE may be configured by the BS through RRC signaling.

Referring to FIG. 5, a flowchart illustrating a method of monitoring a PDCCH by a UE according to an embodiment is shown. Specifically, the flowchart of FIG. 5 corresponds to the embodiment shown in FIG. 1.

In 502, when the BS configures a high-priority channel and a low-priority channel in the PDCCH monitoring span, at least one variable indicating the minimum additional time required by the UE to process the low-priority channel is It is sent to the BS. A high priority channel may be implemented as a uRLLC service type, and a low priority channel may be implemented as an eMBB service type. The PDCCH monitoring span is for one of BD and CCE monitoring, and is implemented as a slot or one of a plurality of spans within the slot.

The at least one variable may be a first variable indicating a minimum additional time required by the UE for PDSCH reception, and a second variable indicating a minimum additional time required by the UE for HARQ-ACK preparation.

At 504, at least one offset based on at least one variable is received from the BS. At 506, at least one of the first time interval and the second time interval is increased based on the at least one offset. The UE may be configured by the BS through RRC signaling. The first time interval is set from the end of the PDCCH to the start of the PDSCH, and the second time interval is set from the end of the PDSCH to the start of the PUCCH. The first time interval and the second time interval are initially set based on the configuration of a low priority channel (no high priority channel) in the PDCCH monitoring span.

The at least one offset may be a first offset based on a first parameter for increasing the first time interval and a second offset based on a second parameter for increasing the second time interval.

6 is a flowchart illustrating a method of monitoring a PDCCH by a UE according to another embodiment. Specifically, the flowchart of FIG. 6 corresponds to the embodiment shown in FIG. 2.

At 602, when the BS configures a high priority channel and a low priority channel in the PDCCH monitoring span, a variable indicating the minimum additional time required by the UE to process the low priority channel is transmitted to the BS. A high priority channel may be implemented as a uRLLC service type, and a low priority channel may be implemented as an eMBB service type. This variable represents the minimum additional time required by the UE for PUSCH transmission. The PDCCH monitoring span is for one of BD and CCE monitoring, and is implemented as a slot or one of a plurality of spans within the slot.

At 604, an offset based on the variable is received from the BS. At 606, the time interval increases based on the offset. The UE may be configured by the BS through RRC signaling. The time interval is set from the end of the PDCCH to the start of the PUSCH. The time interval is initially set based on the configuration of a low priority channel (no high priority channel) in the PDCCH monitoring span.

7 is a block diagram of an electronic device 701 in a network environment 700 according to an embodiment.

Referring to FIG. 7, an electronic device 701 in a network environment 700 may communicate with another electronic device 702 through a first network 798 (eg, a short-range wireless communication network), or 2 Can communicate with other electronic devices 704 or servers 708 via network 799 (eg, a long distance wireless communication network). The electronic device 701 may also communicate with the electronic device 704 through the server 708.

The electronic device 701 includes a processor 720, a memory 730, an input device 750, an audio output device 755, a display device 760, an audio module 770, a sensor module 776, and an interface 777. ), a haptic module 779, a camera module 780, a power management module 788, a battery 789, a communication module 790, a subscriber identification module (SIM) 796, or an antenna module 797. . In one embodiment, at least one of the components (eg, the display device 760 or the camera module 780) is omitted from the electronic device 701, or one or more other components are added to the electronic device 701 Can be. In one embodiment, some of the components may be implemented as a single integrated circuit (IC). For example, the sensor module 776 (eg, a fingerprint sensor, an iris sensor, or an illuminance sensor) may be embedded in the display device 760 (eg, a display).

The processor 720 is, for example, at least one other component of the electronic device 701 connected to the processor 720 by executing software (eg, a program 740) (eg, hardware or software configuration Elements) and perform various data processing or calculations. As at least part of data processing or calculation, processor 720 may load instructions or data received from other components of volatile memory 732 (e.g., sensor module 776 or communication module 790). In addition, commands or data stored in the volatile memory 732 are processed, and result data is stored in the nonvolatile memory 734.

The processor 720 includes a main processor 721 (e.g., a central processing unit (CPU) or an application processor (AP)), and a secondary processor 723 that can operate independently or in conjunction with the main processor 721 ( For example, it may include a graphic processing unit (GPU), an image signal processor (ISP), a sensor hub processor, or a communication processor (CP)). Additionally or alternatively, the coprocessor 723 may be configured to consume less power than the main processor 721 or to perform specific functions. The secondary processor 723 may be implemented separately from the main processor 721, or may be implemented as a part thereof.

The coprocessor 723 is in place of the main processor 721 while the main processor 721 is in an inactive (e.g., sleep) state, or the main processor 721 is in an active state (e.g., an application is running). While in the main processor 721, associated with at least one of the components of the electronic device 701 (e.g., display device 760, sensor module 776 or communication module 790) At least some of the functions or states can be controlled. According to one embodiment, the co-processor 723 (eg, ISP or CP) is another component functionally related to the co-processor 723 (eg, camera module 780 or communication module 790) Can be implemented as part of.

The memory 730 may store various data used by at least one component of the electronic device 701 (eg, the processor 720 or the sensor module 776 ). The various data may include, for example, input data or output data for software (eg, program 740) and instructions related thereto. The memory 730 may include a volatile memory 732 or a nonvolatile memory 734.

The program 740 may be stored in the memory 730 as software, and may include, for example, an operating system (OS) 742, middleware 744, or an application 746.

The input device 750 may receive commands or data to be used by other components of the electronic device 701 (eg, the processor 720) from outside (eg, a user) of the electronic device 701. have. The input device 750 may include, for example, a microphone, a mouse, or a keyboard.

The sound output device 755 may output an sound signal to the outside of the electronic device 701. The sound output device 755 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as multimedia playback or recording, and the receiver can be used to receive an incoming call. According to an embodiment, the receiver may be separated from the speaker or implemented as a part of the speaker.

The display device 760 may visually provide information to the outside (eg, a user) of the electronic device 701. The display device 760 may include, for example, a display, a hologram device, or a projector and a control circuit to control a corresponding one of a display, a hologram device, and a projector. According to an embodiment, the display device 760 may include a touch circuit configured to sense a touch, or a sensor circuit (eg, a pressure sensor) configured to measure the strength of a force generated by the touch.

The audio module 770 may convert sound into an electrical signal or vice versa. According to an embodiment, the audio module 770 acquires sound through the input device 750 or directly communicates with the electronic device 701 through the sound output device 755 or a headphone of the external electronic device 702. (For example, wired) or wirelessly.

The sensor module 776 detects an operating state (eg, power or temperature) of the electronic device 701 or an environmental state outside the electronic device 701 (eg, a user's state), and then detects Generate electrical signals or data values corresponding to the state. The sensor module 776 is, for example, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or It may be an illuminance sensor.

The interface 777 may support one or more specified protocols to be used to connect the electronic device 701 to the external electronic device 702 directly (eg, wired) or wirelessly. According to an embodiment, the interface 777 may include, for example, a high resolution multimedia interface (HDMI), a universal serial bus (USB) interface, a secure digital (SD) card interface, or an audio interface.

The connection terminal 778 may include a connector through which the electronic device 701 can be physically connected to the external electronic device 702. According to an embodiment, the connection terminal 778 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The haptic module 779 may convert an electrical signal into an electrical stimulus that can be recognized by a user through a mechanical stimulus (eg, vibration or movement) or a tactile or motor sensation. According to an embodiment, the haptic module 779 may include, for example, a motor, a piezoelectric element, or an electric stimulator.

The camera module 780 may capture a still image or a video. According to an embodiment, the camera module 780 may include one or more lenses, image sensors, ISP, or flash.

The power management module 788 may manage power supplied to the electronic device 701. The power management module 788 may be implemented as at least a part of, for example, a power management integrated circuit (PMIC).

The battery 789 may supply power to at least one component of the electronic device 701. According to an embodiment, the battery 789 may include, for example, a non-chargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 790 is a direct (eg, wired) communication channel or wireless between the electronic device 701 and an external electronic device (eg, electronic device 702, electronic device 704, or server 708). It may support communication channel setting and support performing communication through a set communication channel. The communication module 790 may include one or more CPs that can operate independently of the processor 720 (eg, AP), and supports direct (eg, wired) communication or wireless communication. According to one embodiment, the communication module 790 is a wireless communication module 792 (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 794 ( For example, it may include a local area network (LAN) communication module or a power line communication (PLC) module).

Among these communication modules, a corresponding module is a first network 798 (e.g., a short-range communication network such as BluetoothTM, Wi-Fi Direct, or Infrared Data Association (IrDA) standard)) or a second network 799 (e.g. For example, it may communicate with external electronic devices over a cellular network, the Internet, or a long distance communication network such as a computer network (eg, a LAN or wide area network (WAN)). These various types of communication modules may be implemented as a single component (eg, a single IC), and may be implemented with multiple components (eg, multiple ICs) separated from each other. The wireless communication module 792 uses subscriber information (e.g., International Mobile Subscriber Identity (IMSI)) stored in the subscriber identification module 796 to communicate such as the first network 798 or the second network 799. The electronic device 701 can be identified and authenticated in the network.

The antenna module 797 may transmit and receive signals or power to and from the outside of the electronic device 701 (eg, an external electronic device). The antenna module 797 may include one or more antennas, and among them, at least one antenna suitable for a communication method used in a communication network such as the first network 798 or the second network 799 is used as a communication module ( 790) (e.g., wireless communication module 792). Then, a signal or power may be transmitted and received between the communication module 790 and an external electronic device through at least one selected antenna.

At least some of the components described above are coupled to each other through a communication method between peripheral devices (e.g., bus, general purpose input and output (GPIO), serial peripheral interface (SPI) or mobile industrial processor interface (MIPI)), It is possible to communicate signals (eg, commands or data) between them.

Commands or data may be transmitted and received between the electronic device 701 and the external electronic device 704 through the server 708 coupled to the second network 799. Each of the electronic devices 702 and 304 may be of the same type as the electronic device 701 or a different type of device. All or part of the operations to be executed in the electronic device 701 may be executed in one or more of the external electronic devices 702, 304, 308. For example, when the electronic device 701 needs to perform a function or service automatically or at the request of a user or another device, the electronic device 701 may instead of executing the function or service or in addition to , It is possible to request one or more external electronic devices to perform at least part of a function or service. At least one external electronic device receiving the request may perform at least a part of the requested function or service, or an additional function or additional service related to the request, and transmits the result of the execution to the electronic device 701. The electronic device 701 may provide a result, as at least a part of a response to the request, with or without additional processing of the result. For this, for example, cloud computing, distributed computing or client-server computing technology can be used.

One embodiment is software (e.g., software including one or more instructions stored in a storage medium (e.g., internal memory 736 or external memory 738) readable by a machine (e.g., electronic device 701). For example, it may be implemented as a program 740). For example, the processor of the electronic device 701 may call at least one of one or more instructions stored in the storage medium and execute it with or without one or more other components under the control of the processor. Thus, the machine can be operated to perform at least one function according to the at least one command invoked. One or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. The term "non-transitory" indicates that the storage medium is a tangible device and does not contain signals (eg, electromagnetic waves), but the term refers to the location where the data is stored semi-permanently on the storage medium and the data is temporarily stored on the storage medium. It does not distinguish where it is stored as.

According to an embodiment, the method of the present disclosure may be provided by being included in a computer program product. Computer program products can be traded as commodities between sellers and buyers. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disk ROM (CD-ROM)), or distributed online through an application store (e.g., Play StoreTM) (e.g. , Download or upload), or distributed directly between two user devices (eg, a smart phone). When distributed online, at least a portion of the computer program product may be temporarily created or at least temporarily stored in a machine-readable storage medium, such as a memory of a manufacturer's server, a server of an application store, or a relay server.

According to an embodiment, each of the above-described components (eg, a module or program) may include a single entity or multiple entities. One or more of the above-described constituent elements may be omitted, or one or more other constituent elements may be added. Alternatively or additionally, a plurality of components (eg, modules or programs) may be integrated into a single component. In this case, since the integrated components are performed by a corresponding one of the plurality of components prior to integration, they can still perform one or more functions of each of the plurality of components in the same or similar manner. Tasks performed by modules, programs, or other components may be sequentially, parallel, repeatedly or empirically performed, one or more tasks may be executed or omitted in a different order, or one or more other tasks may be added. .

In the detailed description of the present disclosure, specific embodiments of the present disclosure have been described, but the present disclosure may be modified in various forms without departing from the scope of the present disclosure. Accordingly, the scope of the present disclosure should not be determined only by the described embodiments, but should be determined based on the appended claims and their equivalents.

104, 106, 108: MO
110: eMBB PDSCH
112: HARQ ACK

Claims (10)

In the method of monitoring a physical downlink control channel (PDCCH) by a base station (BS),
Setting a first time interval from the end of the PDCCH to the start of a physical downlink shared channel (PDSCH);
Setting a second time interval from the end of the PDSCH to the start of a physical uplink control channel (PUCCH);
Configuring a high-priority channel and a low-priority channel in a PDCCH monitoring span;
Receiving, from a user equipment (UE), at least one variable indicating a minimum additional time required by the UE to process the low priority channel; And
Based on the at least one variable, configuring the UE with at least one offset used to increase at least one of the first time interval and the second time interval. The method of claim 1,
The first time interval and the second time interval are set based on a configuration of the low priority channel without the high priority channel in the PDCCH monitoring span. The method of claim 1,
Wherein the high priority channel comprises an ultra high reliability low latency communication (uRLLC) service type and the low priority channel comprises an ultra wideband (eMBB) communication service type. The method of claim 1,
Receiving the at least one variable,
A first variable indicating the minimum additional time required by the UE for PDSCH reception, and
A second variable indicating the minimum additional time required by the UE to prepare for hybrid automatic repeat request (HARQ) acknowledgment (ACK)
Receiving at least one of. The method of claim 4,
Configuring the UE,
A first offset based on the first variable to increase the first time interval,
A second offset based on the second variable to increase the second time interval
Configuring the UE with at least one of. The method of claim 1,
The UE is configured through radio resource control (RRC) signaling. The method of claim 1,
Wherein the PDCCH monitoring span is for one of blind decoding (BD) and control channel element (CCE) monitoring. The method of claim 1,
Wherein the PDCCH monitoring span comprises one of a slot or a plurality of spans within a slot. In the method of monitoring a physical downlink control channel (PDCCH) by a base station (BS),
Setting a time interval from the end of the PDCCH to the start of a physical uplink shared channel (PUSCH);
Configuring a high-priority channel and a low-priority channel in a PDCCH monitoring span;
Receiving, from a user equipment (UE), a variable indicating a minimum additional time required by the UE to process the low priority channel; And
Configuring the UE with an offset used to increase the time interval based on the variable. The method of claim 9,
The time interval is set based on a configuration of the low priority channel without the high priority channel in the PDCCH monitoring span.

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