KR20210077793A - Apparatus and method for determining a timing relationship in a wireless communication system - Google Patents

Abstract

This disclosure relates to LTE (Long Term Evolution) and 4G (4 ^th generation) 5G to support higher data rates than the subsequent communication system (5 ^th generation) or pre-5G communication system such. An exemplary embodiment of the present disclosure relates to the field of wireless communication technology, for example, the process of receiving a timing relationship set indication indicating a timing relationship set for use in a terminal; determining a set of timing relationships based on the indication of the set of timing relationships; Receiving timing relationship indication information indicating a timing relationship for use in a terminal; and determining a timing relationship for use in the terminal based on the timing relationship set and the timing relationship indication information. The present disclosure implements a method and apparatus for dynamically changing a set of timing relationships, saves power consumption of a terminal, and ensures timely data transmission.

Description

Apparatus and method for determining a timing relationship in a wireless communication system

The present application relates to an apparatus and method for determining a timing relationship in the field of wireless communication technology, for example, a wireless communication system.

4G (4 ^th generation) to meet the traffic demand in the radio data communication system increases since the commercialization trend, efforts to develop improved 5G (5 ^th generation) communication system, or pre-5G communication system have been made. For this reason, the 5G communication system or the pre-5G communication system is called a 4G network after (Beyond 4G Network) communication system or an LTE (Long Term Evolution) system after (Post LTE) system.

In order to achieve high data rates, 5G communication systems are being considered for implementation in very high frequency (mmWave) bands (eg, 60 gigabytes (60 GHz) bands). In order to alleviate the path loss of radio waves and increase the propagation distance of radio waves in the ultra-high frequency band, in the 5G communication system, beamforming, massive MIMO, and full-dimensional ), array antenna, analog beam-forming, and large scale antenna technologies are being discussed.

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

In addition, in the 5G system, Hybrid Frequency Shift Keying and Quadrature Amplitude Modulation (FQAM) and Sliding Window Superposition Coding (SWSC), which are advanced coding modulation (Advanced Coding Modulation, ACM) methods, and Filter Bank Multi Carrier (FBMC), an advanced access technology, ), Non Orthogonal Multiple Access (NOMA), and Sparse Code Multiple Access (SCMA) are being developed.

In a new radio (NR) air interface system, a physical downlink control channel (PDCCH) and a data channel scheduled by the PDCCH may or may not be transmitted in the same time unit.

The timing relationship between the PDCCH and the data channel scheduled by the PDCCH may be indicated by a specific value in a predetermined set of timing relationships. In general, before receiving signaling (eg, PDCCH) indicating a specific value, data transmission must be prepared according to the minimum value of a set of timing relationships. The smaller the minimum value of the set of timing relationships, the higher the preparation requirement, the higher the processing intensity requirement of the UE, and the more power the UE consumes. On the other hand, the larger the minimum value of the set of timing relationships, the lower the preparation requirement, the lower the processing intensity requirement of the UE, and the less power the UE consumes. However, in this case, a relatively small amount of data may be transmitted and data transmission may have a relatively large delay.

In this regard, there is a need for a technical solution capable of balancing the resource consumption of the terminal and the data transmission requirements.

Embodiments of the present disclosure provide a method, apparatus and storage medium for determining a timing relationship.

According to a first exemplary aspect of the present disclosure, there is provided a method for determining a timing relationship, the method comprising receiving a timing relationship set indication indicating a set of timing relationships for use in user equipment (UE); determine a timing relationship based on the timing relationship set indication, receive timing relationship indication information indicating a timing relationship for use in the UE, and determine a timing relationship to be used in the UE based on the timing relationship set and the timing relationship indication information have.

In various exemplary embodiments, the timing relationship set indication is a field related to a timing relationship set of a physical downlink control channel (PDCCH) scheduling a physical downlink shared channel (PDSCH), a field related to a timing relationship set of a PDCCH not scheduling a PDSCH. may contain at least one of a field, a reference signal, other control information to be dynamically changed, information transmitted along with other control information to be dynamically changed, and information about a constraint on a set comprising a set of timing relationships. have.

In various demonstrative embodiments, the determined set of timing relationships may indicate that a change in the set of timing relationships has occurred. In this case, determining the timing relationship to be used in the UE based on the timing relationship set and the timing relationship indication information is based on the timing relationship and the timing relationship indication information before the change within a predetermined period after determining that the change of the timing relationship set has occurred. The process of determining a timing relationship to be used in the UE based on the process, preparing data transmission based on the minimum value of the timing relationship set before the change, and based on the lapse of a predetermined period, in the UE based on the changed timing relationship set and the timing relationship indication information determining a timing relationship for use and preparing data transmission based on a minimum value of the changed set of timing relationships.

In various demonstrative embodiments, the determined set of timing relationships may indicate that a change in the set of timing relationships has occurred. In this case, determining the timing relationship for use in the UE based on the timing relationship set and the timing relationship indication information includes: the timing relationship indicated by the timing relationship indication information within a predetermined period after determining that a change in the timing relationship set has occurred a process of determining a timing relationship for use in the UE based on the changed timing relationship set and timing relationship indication information, based on the value being less than the minimum value of the timing relationship before the change, before the timing relationship indicated by the timing relationship indication information suspending data transmission, based on the minimum value of the set of timing relationships before the change, and after determining that the change of the set of timing relationships has elapsed, preparing for data transmission based on a predetermined period of time, and the set of changed timing relationships It may include a process of preparing data transmission based on the minimum value.

In various exemplary embodiments, the timing relationship in the set of timing relationships includes the timing relationship between the PDCCH and the PDSCH to be scheduled by the PDCCH, the timing relationship between the PDSCH and its hybrid automatic repeat request acknowledgment, and the PDCCH and It may indicate at least one of the timing relationships between PUSCHs to be scheduled by the PDCCH.

In various demonstrative embodiments, a plurality of different types of timing relationship sets may be displayed respectively or in combination based on a timing relationship set comprising a plurality of different types of timing relationship sets.

According to a second exemplary aspect of the present disclosure, there is provided a method for determining a timing relationship, the method comprising: timing for use with a UE from a plurality of sets of timing relationships based on data transmission of a user equipment (UE) Select a relationship set, send a timing relationship set indication to the UE indicating the selected timing relationship set, determine a timing relationship for use for the UE in the selected timing relationship set, and send a timing relationship indication indicating the selected timing relationship to the UE can be sent to

In various demonstrative embodiments, selecting a timing relationship for use with the UE from a plurality of sets of timing relationships based on data transmission of a user equipment (UE) may include: a size and data amount of an amount of data to be transmitted by the UE. determining a set of timing relationships to be used for the UE based on the transmission delay requirement.

In various demonstrative embodiments, determining the timing relationship to be used for the UE in the selected set of timing relationships may include: within a predetermined period of time, based on the selected set of timing relationships being different from a set of timing relationships previously selected for the UE, the selected timing selecting a timing relationship having a value greater than or equal to a minimum value from a set of preselected timing relationships for the UE for use with the UE from the relationship set.

According to another exemplary aspect of the present disclosure, there is provided user equipment (UE), the UE comprising: receiving circuitry configured to receive a timing relationship set indication indicating a timing relationship for use in the UE A timing relationship set determination module comprising a set indication receiving module, circuitry configured to determine a set of timing relationships based on the timing relationship set indication, a timing relationship set determining module comprising: circuitry configured to receive timing relationship indication information indicating a timing relationship for use in a UE and a timing relationship determining module, comprising: a relationship indication receiving module, and circuitry configured to determine a timing relationship to be used in the UE based on the timing relationship set and the timing relationship indication information.

According to another exemplary aspect of the present disclosure, there is provided a user equipment (UE), the UE controlling the UE to cause the processor to perform the method according to the first exemplary aspect when executed by a processor and the processor and storage configured to store machine-readable instructions that cause

According to another exemplary aspect of the present disclosure, there is provided a base station, a set of timing relationships comprising circuitry configured to select a timing relationship for use with a user equipment (UE) from a plurality of sets of timing relationships. A timing relationship determination module comprising: a selection module; a timing relationship set indication module comprising circuitry configured to send indication information to the UE indicating the selected set of timing relationships; and a timing relationship determination module comprising circuitry configured to determine a timing relationship for the UE in the selected set of timing relationships. and a timing relationship indication module comprising circuitry configured to transmit indication information for indicating the selected timing relationship to the UE.

According to another exemplary aspect of the present disclosure, there is provided a base station, wherein the base station is a processor and, when executed by a processor, machine-readable, which configures the processor to control the base station to perform the method according to the second exemplary aspect. and storage configured to store instructions.

According to another exemplary aspect of the present disclosure, there is provided a non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium, when executed by a processor, causes the processor to cause the first aspect or the second aspect. Executable instructions for performing a method according to the method may be stored.

In various exemplary embodiments of the present disclosure, the selection of the timing relationship set for the terminal may be dynamically indicated using a timing relationship set indication, which may implement dynamic change of the timing relationship set and save power consumption of the UE. and can ensure timely data transmission.

These and other aspects, features and advantages of specific embodiments of the present disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings.
1 illustrates a wireless communication system according to an embodiment.
2 illustrates a base station of a wireless communication system according to an embodiment.
3 illustrates a terminal in a wireless communication system according to an embodiment.
5 is a flow diagram illustrating an exemplary method for determining a timing relationship according to an embodiment of the present disclosure.
6 is a block diagram illustrating an exemplary user equipment (UE) according to an embodiment of the present disclosure.
7 is a flow diagram illustrating another example method for determining a timing relationship in accordance with an embodiment of the present disclosure.
8 is a block diagram illustrating an exemplary base station according to an embodiment of the present disclosure.
9 is a flow diagram representing an exemplary method of changing a set of timing relationships in accordance with an embodiment of the present disclosure.
10 is a diagram illustrating an exemplary method of changing a set of timing relationships according to an embodiment of the present disclosure.
11 is a diagram illustrating an exemplary method of changing a set of timing relationships according to an embodiment of the present disclosure.
12 is a diagram illustrating an exemplary method of changing a set of timing relationships according to an embodiment of the present disclosure.
13 is a diagram illustrating an exemplary method of changing a set of timing relationships according to an embodiment of the present disclosure.
14 is a diagram illustrating an exemplary method of changing a set of timing relationships according to an embodiment of the present disclosure.
15 is a diagram illustrating an exemplary method for changing a set of timing relationships according to an embodiment of the present disclosure.
16 is a diagram illustrating an exemplary method of changing a set of timing relationships according to an embodiment of the present disclosure.
17 is a diagram illustrating an exemplary method of changing a set of timing relationships according to an embodiment of the present disclosure.
18 is a block diagram illustrating an exemplary electronic device in a network environment according to various embodiments of the present disclosure;
In the accompanying drawings, like reference numbers refer to like elements.

BRIEF DESCRIPTION OF THE DRAWINGS Various exemplary embodiments of the present disclosure will be described in greater detail below, examples of which are illustrated in the accompanying drawings, wherein the same or like reference numerals refer throughout to the same or similar elements or having the same or similar functions. Used to refer to elements. The various exemplary embodiments described below with reference to the accompanying drawings are for illustrative purposes only, are used only to describe the present disclosure, and should not be construed as limiting the present disclosure.

It will be understood by those skilled in the art that the singular forms used in this disclosure may also include the plural forms unless otherwise stated. The phrase “comprise” as used in this disclosure may refer to the presence of a feature, integer, process, function, element, and/or component, but may refer to one or more other features, integers, processes, functions, elements, components and/or elements. It should be understood that the presence or addition of the group should not be excluded. It should be understood that when an element is referred to as being “connected” or “coupled” to another element, it may be directly connected or coupled to the other element, or there may be intermediate elements in between. Also, as used herein, “connected” or “coupled” may include, for example, wireless connection or wireless coupling. As used herein, the phrase “and/or” includes all one or more of the related list items or any combination thereof.

Terms used in this disclosure (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs, unless otherwise defined, and will be understood by In addition, terms such as terms defined in the general dictionary should be understood as having a meaning consistent with the meaning in the context of the related art, and it should be understood that it is not described in an optimized or overly formal sense unless specifically defined herein.

Those skilled in the art will understand that "terminal" and "terminal device" as used herein include, in addition to a wireless signal receiving device having only a wireless signal receiver without transmission capability, a receiving and transmitting hardware device capable of bidirectional communication through a bidirectional communication link. will be. For example, such devices may include, but are not limited to, cellular or other communication devices that may or may not include a single line display or a multi-line display; personal communication service (PCS), which may include voice, data processing, fax and/or data communication functions; a personal digital assistant (PDA), which may include a radio frequency receiver, pager, Internet/Instanet access, web browser, notepad, calendar and/or global positioning system (GPS) receiver; may include such things as conventional laptop and/or palmtop computers or other devices including radio frequency receivers and the like.

As used herein, “terminal” and “terminal device” means, for example, without limitation, portable and transportable, installed on a means of transport (air transport, sea transport and/or land transport) and adapted to operate locally. and/or configured to operate in a distributed fashion at other locations on Earth and/or space. As used herein, “terminal” and “terminal device” may also include, for example, without limitation, a communication terminal, an Internet terminal, a music/video playback terminal, and the like, such as a PDA, a mobile Internet device (MID). and/or a device such as a mobile phone or smart TV, set-top box, etc. with music/video playback function.

1 illustrates a wireless communication system according to an embodiment. 1 illustrates a base station 110, a terminal 120, and a terminal 130 as some nodes using a wireless channel in a wireless communication system. 1 shows a single base station, other base stations that are the same as or similar to the base station 110 may further be included.

The base station 110 is a network infrastructure that provides wireless access to the terminal 120 and the terminal 130 . The base station 110 may have coverage defined as a geographic area based on a signal transmission distance. The base station 110 includes an access point (AP), an eNodeB (eNB), a 5G node, a next generation node B (gNB), a radio point, a transmission/reception point , TRP), or other terms having technically equivalent meanings.

The terminal 120 and the terminal 130 are each used by a user and may communicate with the base station 110 through a wireless channel. In some cases, at least one of the terminal 120 and the terminal 130 may operate without user intervention. That is, at least one of the terminal 120 and the terminal 130 can perform machine type communication (MTC) and cannot be carried by the user. The terminal 120 and the terminal 130 may be respectively referred to as user equipment (UE), mobile station, subscriber terminal, remote terminal, wireless terminal, user equipment, or different terms having technically equivalent meanings.

The base station 110, the terminal 120, and the terminal 130 may transmit and receive radio signals in a millimeter wave (mmWave) band (eg, 28Ghz, 30Ghz, 38Ghz, 60Ghz). In order to improve the channel gain, the base station 110 , the terminal 120 , and the terminal 130 may perform beamforming. Here, the beamforming may include transmit beamforming and receive beamforming. That is, the base station 110 , the terminal 120 , and the terminal 130 may provide directionality to a transmission signal or a reception signal. To this end, the base station 110, the terminal 120, and the terminal 130 may select the serving beams 112, 113, 121, and 131 through a beam search or beam management procedure. After the serving beams 112, 113, 121, and 131 are selected, communication may be performed using a resource used to transmit the serving beams 112, 113, 121, and 131 and a quasi co-located (QCL) resource. .

If the large-scale property of a channel transmitting a symbol to the first antenna port can be inferred from a channel transmitting a symbol to the second antenna port, the first antenna port and the second antenna port may be referred to as QCL. For example, the large-scale attribute may include at least one of delay spread, Doppler spread, Doppler shift, average gain, average delay, and spatial reception parameters.

2 illustrates a configuration of a base station 110 in a wireless communication system according to an embodiment. In the following description, terms such as “module”, “unit”, “portion”, “or”, or “-er” refer to at least one function or It should be understood as indicating a unit for processing an operation, and may be implemented using hardware, software, or a combination of hardware and software.

2, the base station 110 includes a wireless communication unit 210 (eg, a wireless communication unit or a wireless communication interface), a backhaul communication unit 220 (eg, a backhaul communication unit or a backhaul communication interface), a storage unit 230 (eg : storage device), and a control unit 240 (eg, at least one processing device).

The wireless communication unit 210 may transmit and receive signals through a wireless channel. For example, the wireless communication unit 210 may perform a conversion function between a baseband signal and a bit stream (or bit stream) according to a physical layer standard of the system. As an additional example, when data is transmitted, the wireless communication unit 210 may generate a complex symbol by encoding and modulating a transmission bit stream (or a transmission bit stream). Similarly, when data is received, the wireless communication unit 210 may demodulate and decode a baseband signal to restore a received bit stream (or a received bit stream).

In addition, the wireless communication unit 210 up-converts the baseband signal into a radio frequency (RF) band signal, transmits the RF band signal through the antenna, and converts the RF band signal received through the antenna into a baseband signal. can be down-converted. To this end, the wireless communication unit 210 may include at least one of a transmit filter, a receive filter, an amplifier, a mixer, an oscillator, a digital to analog converter (DAC), and an analog to digital converter (ADC). In addition, the wireless communication unit 210 may include or use a plurality of transmission and reception paths. Also, the wireless communication unit 210 may include at least one antenna array including a plurality of antenna elements.

In terms of hardware, the wireless communication unit 210 may include a digital unit and an analog unit, and the analog unit may include a plurality of sub-units according to operating power and operating frequency. The digital unit may include at least one processor (eg, a digital signal processor (DSP)).

As described above, the wireless communication unit 210 may transmit and receive signals. Accordingly, all or part of the wireless communication unit 210 may be referred to as a transmitter, a receiver, or a transceiver. Hereinafter, transmission and reception through the wireless channel may include the above-described processing of the wireless communication unit 210 .

The backhaul communication unit 220 may provide an interface for communicating with other nodes in the network. That is, the backhaul communication unit 220 converts the bit string transmitted from the base station 110 to another node, for example, another access node, another base station, an upper node, or a core network and converts it into a physical signal. and can convert the physical signal received from another node into a bit string.

The storage unit 230 may store data such as a basic program for operating the base station, an operating program, configuration information, and a set. The storage unit 230 may include a volatile memory, a non-volatile memory, or a combination of a volatile memory and a non-volatile memory. The storage unit 230 may provide stored data according to the request of the control unit 240 .

The controller 240 may control the overall operation of the base station. For example, the control unit 240 may transmit/receive a signal through the wireless communication unit 210 or the backhaul communication unit 220 . In addition, the control unit 240 may write data to the storage unit 230 and read data from the storage unit 230 . The control unit 240 may execute a function of a protocol stack required or included in a specific communication standard. According to another embodiment, the protocol stack may be included in and/or implemented through the wireless communication unit 210 . To this end, the controller 240 may include at least one processor.

According to an embodiment, the controller 240 may determine at least one beam to communicate with the terminal (eg, the terminal 120 ). For example, the controller 240 may determine the transmission beam of the base station 110 based on the feedback from the terminal. Also, the controller 240 may determine at least one of a reception beam of the base station 110 and a transmission beam of the terminal by using a signal transmitted from the terminal. Also, the controller 240 may transmit information indicating the determined transmission beam of the terminal to the terminal. For example, the controller 240 may control the base station 110 to perform an operation to be described later according to one or more embodiments.

3 illustrates a terminal 120 in a wireless communication system according to an embodiment. In the following description, terms such as “module”, “unit”, “portion”, “or”, or “-er” refer to at least one function or It should be understood as indicating a unit for processing an operation, and may be implemented using hardware, software, or a combination of hardware and software.

Referring to FIG. 3 , the terminal 120 may include a communication unit 310 (eg, a communicator or communication interface), a storage unit 320 , and a control unit 330 (eg, at least one processor). As an example, the terminal 120 may be a cellular phone or other device that communicates over a cellular network (eg, a 5G or pre-5G network).

The communication unit 310 may transmit/receive a signal through a wireless channel. For example, the communication unit 310 may perform a conversion function between a baseband signal and a bit stream according to a physical layer standard of the system. As an additional example, when data is transmitted, the communication unit 310 may generate a complex symbol by encoding and modulating the transmission bit stream. Similarly, when data is received, the communication unit 310 may demodulate and decode the baseband signal to restore the received bit stream. Also, the communication unit 310 may up-convert a baseband signal into a radio frequency (RF) band signal and down-convert the RF band signal into a baseband signal through an antenna. For example, the communication unit 310 may include at least one of a transmission filter, a reception filter, an amplifier, a mixer, an oscillator, a digital to analog converter (DAC), and an analog to digital converter (ADC).

Also, the communication unit 310 may include or use a plurality of transmission/reception paths. Also, the communication unit 310 may include at least one antenna array including a plurality of antenna elements. In terms of hardware, the communication unit 310 may include a digital circuit and an analog circuit (eg, RF IC). Here, the digital circuit and the analog circuit may be implemented as one package. Also, the communication unit 310 may include a plurality of RF chains. Also, the communication unit 310 may perform beamforming.

As described above, the communication unit 310 may transmit and receive signals. Accordingly, all or part of the communication unit 310 may be referred to as a transmitter, a receiver, or a transceiver. Hereinafter, transmission and reception through a wireless channel may include the above-described processing of the communication unit 310 .

The storage unit 320 may store data such as a basic program, an application program, configuration information, and a set for operation of the terminal. The storage unit 320 may include a volatile memory, a non-volatile memory, or a combination of a volatile memory and a non-volatile memory. The storage unit 320 may provide stored data according to the request of the control unit 330 .

The controller 330 may control the overall operation of the terminal. For example, the control unit 330 may transmit/receive a signal through the communication unit 310 . Also, the controller 330 may write data to and read data from the storage 320 . The control unit 330 may perform a function of a protocol stack required or included in a specific communication standard. To this end, the control unit 330 may include at least one processor or microprocessor, or may be a part of the processor. A part of the communication unit 310 and the control unit 330 may be referred to as a communication processor (CP).

According to an embodiment, the controller 330 may determine at least one beam for communicating with the base station (eg, the base station 110 ). For example, the controller 330 may determine at least one of a reception beam of the terminal 120 and a transmission beam of the base station by using a signal transmitted from the base station. Also, the controller 330 may transmit information indicating the determined transmission beam of the base station to the base station. For example, the controller 330 may determine the transmission beam of the base station based on the request of the base station. Also, the controller 330 may control the terminal to perform an operation to be described later according to one or more embodiments.

4 illustrates a communication unit 210 or 310 in a wireless communication system according to an embodiment. 4 shows a detailed configuration of the wireless communication unit 210 of FIG. 2 or the communication unit 310 of FIG. 3 . More specifically, FIG. 4 shows a configuration for performing beamforming as a part of the wireless communication unit 210 of FIG. 2 or the communication unit 310 of FIG. 3 .

Referring to FIG. 4 , the wireless communication unit 210 or the communication unit 310 includes an encoder and a modulator 402 , a digital beamformer 404 , a plurality of transmission paths 406-1 to 406-N, and an analog beamformer 408 . ) may be included.

Encoder and modulator 402 may perform channel encoding. At least one of a low density parity check (LDPC) code, a convolution code, and a polar code may be used to perform channel encoding. The encoder and modulator 402 may generate modulation symbols through constellation mapping.

The digital beamformer 404 may beamform a digital signal (eg, a modulation symbol). To this end, the digital beamformer 404 may multiply or apply a beamforming weight to the modulation symbol. Here, the beamforming weight is used to change the level and phase of the signal, and may be referred to as a precoding matrix or a precoder. The digital beamformer 404 may output the digital beamformed modulation symbol to a plurality of transmission paths 406 - 1 to 406 -N. In this case, modulation symbols may be multiplexed according to a multiple input multiple output (MIMO) transmission scheme, or the same modulation symbol may be supplied to the plurality of transmission paths 406 - 1 to 406 -N.

The transmission paths 406 - 1 to 406 -N may convert a digital beamformed digital signal into an analog signal. To this end, the transmission paths 406 - 1 to 406 -N may include an inverse fast Fourier transform (IFFT) operator, a cyclic prefix (CP) adder or inserter, a DAC, and an up converter, respectively. The CP adder may be used for orthogonal frequency division multiplexing (OFDM), and may be excluded when another physical layer method (eg, filter bank multi-carrier (FBMC)) is applied. That is, the transmission paths 406 - 1 to 406 -N may provide independent signal processing for a plurality of streams generated through digital beamforming. In particular, some components of the transmission paths 406-1 to 406-N may be used in common depending on the implementation.

The analog beamformer 408 may beamform an analog signal. To this end, the analog beamformer 408 may multiply or apply a beamforming weight to the analog signal. Here, the beamforming weight may be used to change the level and phase of the signal. More specifically, the analog beamformer 408 may be configured in various ways according to a connection structure between the transmission paths 406 - 1 to 406 -N and the antenna. For example, each of the transmission paths 406-1 to 406-N may be coupled to one antenna array, or the transmission paths 406-1 to 406-N may be coupled to one antenna array. Further, the transmission paths 406-1 to 406-N may be adaptively coupled to one antenna array or may be coupled to two or more antenna arrays.

In a new radio (NR) air interface system, a physical downlink control channel (PDCCH) and a data channel scheduled by the PDCCH may or may not be transmitted in the same time unit. For example, a PDCCH is transmitted in a time unit (eg, a time slot) n, and a physical downlink shared channel (PDSCH) scheduled by the PDCCH is transmitted in a time unit n + k0, where k0 is the PDSCH. It may be indicated by a field of the scheduling PDCCH (indicated by the timing relationship of downlink allocation to downlink data). This field indicates the element index of a set called K0. For example, the K0 set is {0, 1, 2, 3}, and may be composed of four elements, a field indication value, and a timing relationship k0 of downlink allocation. For example, data to downlink data is shown in Table 1. Table 1 illustrates the mapping rule between the field indication value and the timing relationship k0 from downlink allocation to downlink data.

field display value k0 00 0 01 One 10 2 11 3

The PDSCH is transmitted in time unit n, and a hybrid automatic repeat request acknowledgment (HARQ-ACK) generated by the PDSCH is transmitted in time unit n+k1, where k1 is a field (PDSCH-to-HARQ) in the PDCCH scheduling the PDSCH. -ACK timing relationship). This field may indicate the index of an element in a set called K1, for example, the K1 set is {0, 1, 2, 3} and may contain 4 elements, and the field indication value and HARQ-ACK in PDSCH The timing relationship k1 up to is shown in Table 2 as an example. Table 2 illustrates a mapping rule between the timing relationship k1 from PDSCH to HARQ-ACK and field indication values.

field display value k1 00 0 01 One 10 2 11 3

The PDCCH is transmitted in a time unit (eg, a time slot) n, and a physical downlink shared channel (PDSCH) scheduled by the PDCCH is transmitted in a time unit n+k2, where k2 is the PDCCH scheduling the PUSCH. It may be indicated by a field (indicated by a timing relationship of uplink allocation for uplink data). This field indicates the index of the element in the set called K2. For example, the set K2 is {0, 1, 2, 3} and may consist of four elements and a field indication value and a timing relationship k2 of uplink allocation. For example, data to uplink data is shown in Table 3. Table 3 illustrates the mapping rule between the field indication value and the timing relationship k2 from uplink allocation to uplink data.

field display value k2 00 0 01 One 10 2 11 3

The above three types of timing relationship sets may be configured semi-statically or statically, and the minimum value of the timing relationship set may be found to determine the requirements of the UE's preparation operation before the UE receives the PDCCH. Since the UE does not know the value of the timing relationship until it receives the PDCCH, the UE must prepare according to the minimum value of the set of timing relationships. For example, the smaller the minimum value of the set of timing relationships, the higher the preparation requirement, the higher the processing intensity requirement of the UE, and the more power the UE consumes. On the other hand, the larger the minimum value of the set of timing relationships, the lower the preparation requirement, the lower the processing intensity requirement of the UE, and the less power the UE consumes. However, in this case, a relatively small amount of data may be transmitted, and data transmission may have a relatively large delay. There is a need for a solution that can balance the resource consumption and the requirements for data transmission in the UE.

To this end, various exemplary embodiments of the present disclosure provide a method for determining a timing relationship. For example, the method may be performed at the UE.

5 is a flow diagram illustrating an exemplary method for determining a timing relationship according to an embodiment of the present disclosure.

For example, as shown in FIG. 1 , the method may include the following operations.

In step 510, a timing relationship set indication indicating a timing relationship set to be used in the terminal may be received.

At 520 , a set of timing relationships may be determined based on the indication of the set of timing relationships.

In step 530, timing relationship indication information indicating a timing relationship to be used in the terminal may be received.

In step 540, a timing relationship to be used in the terminal may be determined based on a timing relationship set and timing relationship indication information.

In various demonstrative embodiments, for example, the timing relationship set indication may include, without limitation, any of the following information:

a field related to a timing relationship set of a physical downlink control channel (PDCCH) for scheduling a physical downlink shared channel (PDSCH);

a field related to a timing relationship set of a PDCCH that does not schedule a PDSCH;

reference signal;

other control information that must be changed dynamically;

information transmitted along with other control information that must be dynamically changed;

Constraints on the sets that make up a set of timing relationships.

In various demonstrative embodiments, the determined set of timing relationships may indicate that a change in the set of timing relationships has occurred. In this example, determining the timing relationship to be used in the UE based on the timing relationship set and the timing relationship indication information may include:

Based on the change in the set of timing relationships occurring within a predetermined period, the process of determining the timing relationship to be used in the UE based on the set of timing relationships before the change and the timing relationship indication information, and the minimum value of the set of timing relationships before the change the process of preparing data for transmission; and

determining a timing relationship to be used in the UE based on the changed timing relationship set and the timing relationship indication information based on the lapse of a predetermined time, and preparing for data transmission based on the minimum value of the changed timing relationship set.

In various demonstrative embodiments, the determined set of timing relationships may indicate that a change in the set of timing relationships has occurred. In this example, determining the timing relationship to be used in the UE based on the timing relationship set and the timing relationship indication information may include:

determining a timing relationship to be used in the UE based on the changed timing relationship set and timing relationship indication information;

After determining that a change in the timing relationship set has occurred, based on the value of the timing relationship indicated by the timing relationship indication information within a predetermined period being smaller than the minimum value of the timing relationship before the change, before the timing relationship indicated by the timing relationship indication information stopping data transmission and preparing for data transmission based on the minimum value of the set of timing relationships before the change; and

A process of preparing for data transmission based on a minimum value of the changed set of timing relationships, based on a predetermined period after determining that a change in the set of timing relationships has occurred.

In various demonstrative embodiments, for example, a timing relationship in a set of timing relationships may represent any of the following without limitation:

timing relationship between the PDCCH and the PDSCH to be scheduled by the PDCCH;

timing relationship between PDSCH and its hybrid automatic repeat request acknowledgment;

The timing relationship between the PDCCH and the PUSCH to be scheduled by the PDCCH.

In various demonstrative embodiments, a plurality of different types of timing relationship sets may be displayed respectively or in combination based on a timing relationship set comprising a plurality of different types of timing relationship sets.

To this end, various exemplary embodiments of the present disclosure provide a UE for determining a timing relationship.

6 is a block diagram illustrating an exemplary UE according to an embodiment of the present disclosure. As shown in FIG. 6 , the UE includes a set indication receiving module 610 (eg, including processing circuitry and/or executable program elements), a timing relationship set determining module 620 (eg processing circuitry and/or executing program elements), possible program elements), a relationship indication receiving module 630 (eg, including processing circuitry and/or executable program elements), and a timing relationship determining module 640 (eg, including processing circuitry and/or executable program elements); may include

The set indication receiving module 610 may include various processing circuitry and/or executable program elements, and may be configured to receive a timing relationship set indication indicating a set of timing relationships to be used at the UE.

The timing relationship set determination module 620 may include various processing circuitry and/or executable program elements and may be configured to determine the set of timing relationships according to the timing relationship set indication.

The relationship indication receiving module 630 may include various processing circuitry and/or executable program elements, and may be configured to determine a timing relationship to be used in the UE based on the timing relationship set and the timing relationship indication information.

In various demonstrative embodiments, for example, the timing relationship set indication may include, without limitation, any of the following information:

a field related to a timing relationship set of a PDCCH scheduling a PDSCH;

a field related to a timing relationship set of a PDCCH that does not schedule a PDSCH;

reference signal;

other control information that must be changed dynamically;

information transmitted along with other control information that must be dynamically changed;

Constraints on the sets that make up a set of timing relationships.

In various demonstrative embodiments, the determined set of timing relationships may indicate that a change in the set of timing relationships has occurred. The device may further include a data transfer preparation module 650 (eg, comprising processing circuitry and/or executable program elements). In this case, the timing relationship determining module 640 may be configured to, after determining that a change in the set of timing relationships has occurred, determine the timing relationship to be used in the UE based on the timing relationship before the change and the timing relationship indication information, within a predetermined period of time and the data transmission preparation module 650 may be configured to prepare for data transmission based on the minimum value of the set of timing relationships before the change. The timing relationship determining module 640 may be configured to determine a timing relationship to be used by the UE based on the changed timing relationship set and the timing relationship indication information after a predetermined time has elapsed, and the data transmission preparation module 650 may be configured to: and prepare for data transmission based on a minimum value of the set of timing relationships.

In various demonstrative embodiments, the determined set of timing relationships may indicate that a change in the set of timing relationships has occurred. In this case, the timing relationship determining module 640 may be configured to determine the timing relationship to be used in the UE based on the changed timing relationship set and the timing relationship indication information. After determining that a change in the timing relationship set has occurred, if the value of the timing relationship indicated by the timing relationship indication information within a predetermined period is less than the minimum value of the timing relationship before the change, the data transmission preparation module 650 additionally displays the timing relationship Stop data transmission before the timing relationship indicated by the information, prepare for data transmission based on the minimum value of the set of timing relationships before the change, and when a predetermined time elapses after determining that a change in the set of timing relationships has occurred, the changed timing relationship may be configured to prepare for data transmission based on a minimum value of the set.

In various demonstrative embodiments, for example, a timing relationship in a set of timing relationships may represent any of the following without limitation:

timing relationship between the PDCCH and the PDSCH to be scheduled by the PDCCH;

timing relationship between PDSCH and its hybrid automatic repeat request acknowledgment;

The timing relationship between the PDCCH and the PUSCH to be scheduled by the PDCCH.

In various example embodiments, when the timing relationship set includes a plurality of different types of timing relationship sets, the plurality of different types of timing relationship sets may be respectively displayed and combined to be displayed.

Exemplary embodiments of the present disclosure further propose a method for determining a timing relationship. The method may be performed in a base station or another device on the network side.

7 is a flowchart illustrating another exemplary method for determining a timing relationship in accordance with an embodiment of the present disclosure. As shown in FIG. 7 , the method may include, for example, without limitation, the following operations.

In operation 710, a timing relationship set to be used for the terminal may be selected from among a plurality of timing relationship sets.

In step 720, a timing relationship set indication indicating the selected timing relationship set may be transmitted to the terminal.

In operation 730, a timing relationship to be used for the terminal in the selected timing relationship set may be determined.

In step 740, a timing relationship indication indicating the selected timing relationship may be transmitted to the terminal.

In various demonstrative embodiments, for example, selecting a set of timing relationships to be used for a UE from a plurality of sets of timing relationships includes selecting a set of timing relationships to be used for a UE from a plurality of sets of timing relationships according to data transmission of the UE. or selecting a timing relationship set to be used for the UE from a plurality of timing relationship sets according to the data transmission of the UE without limitation. For example, the timing relationship to be used for the UE may be determined according to the size of the amount of data to be transmitted by the UE and data transmission delay requirements. In various examples, when a small amount of data needs to be transmitted and the requirements for data transmission delay are low, a large value set of timing relationships may be selected, where large amounts of data must be transmitted and the data transmission delay requirements are high. In this case, a small value set of timing relationships may be selected. The technical solution according to the embodiment of the present disclosure is not limited thereto, and other rules related to the requirements for data size and data transmission delay are also possible, and the index may affect the consumption of resources (eg, power) in the UE. As long as they exist, other indexes related to data transfer may also be used.

In various demonstrative embodiments, determining the timing relationship to be used for the UE in the selected set of timing relationships includes, within a predetermined period of time, if the selected set of timing relationships is different from the set of timing relationships previously selected for the UE, within a predetermined period of time. and selecting a timing relationship having a value greater than or equal to a minimum value from a set of timing relationships selected for the UE before being used for the UE. The timing relationship may also be determined according to other rules, and it should be understood that the technical solution according to the present disclosure is not limited by a specific implementation of the selection of the timing relationship.

Various exemplary embodiments of the present disclosure may further provide an apparatus for determining a timing relationship. The device may be a base station, but may be another device on the network side or a part thereof implementing the same function.

8 is a block diagram illustrating an exemplary base station according to an embodiment of the present disclosure. As shown in FIG. 8 , the base station includes a timing relationship set selection module 810 (eg, including processing circuitry and/or executable program elements), a timing relationship set display module 820 (eg processing circuitry and/or executable program elements), (including executable program elements), timing relationship determination module 830 (eg, including processing circuitry and/or executable program elements), and timing relationship display module 840 (eg, including processing circuitry and/or executable program elements) (eg, including processing circuitry and/or executable program elements) may include.

The timing relationship set selection module 810 may include various processing circuitry and/or executable program elements configured to select a set of timing relationships to be used by the UE from a plurality of sets of timing relationships.

The timing relationship set indication module 820 may include various processing circuitry and/or executable program elements configured to transmit indication information for indicating the selected set of timing relationships to the UE.

The timing relationship determination module 830 may include various processing circuitry and/or executable program elements configured to determine a timing relationship to be used for the UE in the selected set of timing relationships.

The timing relationship indication module 840 may include various processing circuitry and/or executable program elements configured to transmit indication information to the UE to indicate the selected timing relationship.

In various demonstrative embodiments, the timing relationship set selection module 810 may be further configured to select a set of timing relationships to be used for the UE from the plurality of sets of timing relationships based on the data transmission of the UE. For example, the timing relationship to be used for the UE may be determined according to the size of the amount of data to be transmitted by the UE and data transmission delay requirements. In various examples, when a small amount of data needs to be transmitted and the requirement for data transmission delay is low, a large value set of timing relationships may be selected, a large amount of data must be transmitted and the data transmission delay requirement is high. In this case, a small value set of timing relationships may be selected. The technical solution according to the embodiment of the present disclosure is not limited thereto, and other rules related to the requirements for data size and data transmission delay are also possible, and the index may affect the consumption of resources (eg, power) in the UE. As far as possible, other indices related to data transmission may also be used.

In various demonstrative embodiments, the timing relationship determination module 830 is configured to be used for the UE from the selected set of timing relationships within a predetermined time period if the selected set of timing relationships is different from the set of timing relationships previously selected for the UE. and select a timing relationship having a value greater than or equal to a minimum value from the set of timing relationships selected for the UE.

The technical solution according to the present disclosure will be described in more detail below with reference to various examples. The following example implementations are merely examples for implementing the technical solution according to the present disclosure, and should not be construed as limiting the technical solution according to the present disclosure.

When the PDCCH-to-PDSCH timing relationship, the PDSCH-to-HARQ-ACK timing relationship, and/or the PDCCH-to-PUSCH timing relationship is determined according to the timing relationship indicated by the timing relationship field, the amount of data to be transmitted and the data transmission delay The set of timing relationships may change depending on the requirements for When a small amount of data needs to be transmitted and the requirements for data transmission delay are small, the value of the timing relationship set may increase; when large amounts of data need to be transmitted and the data transmission delay requirements are high, the timing relationship set may be reduced. This can reduce power consumption on the UE side while meeting the requirements for the amount of data to be transmitted and data transmission delay.

9 is a flow diagram illustrating an exemplary method for dynamically changing a set of timing relationships in accordance with the present disclosure. The exemplary method illustrated in FIG. 9 may include the following operations.

In step 901, a timing relationship set indication is received and a timing relationship set to be used can be determined.

In step 902, a timing relationship may be determined based on the timing relationship indication and the set of timing relationships used.

In step 903, data or control information may be received or transmitted based on the determined timing relationship.

In this disclosure, changing the timing relationship set may include a method or dynamic change of at least one of a PDCCH-to-PDSCH timing relationship set, a PDSCH-to-HARQ-ACK timing relationship set, and a PDCCH-to-PUSCH timing relationship set. have.

Based on a method of dynamically changing a set of timing relationships according to the foregoing disclosure, the method will be described in detail below.

A method for dynamically changing the PDCCH-to-PDSCH timing relationship set is described, wherein the PDCCH-to-PDSCH timing relationship set may be indicated by a field in the PDCCH scheduling PDSCH. The PDCCH-to-PDSCH timing relationship set may be indicated as a field in a PDCCH that does not schedule a PDSCH, for example, there may be a special PDCCH indicating a change in the PDCCH-to-PDSCH timing relationship set. A change in the PDCCH-to-PDSCH timing relationship set may also be indicated by a reference signal. A change in the PDCCH-to-PDSCH timing relationship set may be indicated together with other parameters that must be dynamically changed (eg, parameters such as a monitoring period of a PDCCH, a monitoring bandwidth of a PDCCH, a set of control resources, etc.). For example, a change in the PDCCH-to-PDSCH timing relationship set and a change in the monitoring period of the PDCCH may be jointly indicated. The PDCCH-to-PDSCH timing relationship set may be changed according to the monitoring period of the PDCCH. For example, when the monitoring period of the PDCCH is changed from p1 to p2, the PDCCH-to-PDSCH timing relationship set is changed from s1 to s2. can The PDCCH-to-PDSCH timing relationship set may be indicated by applying a constraint to the PDCCH-to-PDSCH timing relationship set. The change of the PDCCH-to-PDSCH timing relationship set may be realized by applying different constraints to the PDCCH-to-PDSCH timing relationship set. For example, set s1 contains {a1, a2, a3, A4, a5, a6, a7, a8} and set s2 contains {a3, a4, a5, a6, a7, a8, a9, a10} and set s1 and set s2 can be viewed as a result of applying different constraints to set s{a1, a2, a3, a4, a5, a6, a7, a8, a9, a19}. Thus, a change from set s1 to set s2 can be considered as a change from a restricted set of set s to a restricted set of another set s. A restricted set may be a new set formed by disabling some elements in a set. For example, set s1 can be considered as the set obtained by disabling the ninth and tenth elements in set s. Set s2 can be regarded as the set obtained by inactivating the first and second enzymes in set s. The present disclosure will be described in more detail below by taking a change in the timing relationship set as an example, and may also be applied to the case of applying a constraint to the timing relationship set.

The present disclosure will be described in more detail below, taking the change of the PDCCH-to-PDSCH timing relationship set indicated by the PDCCH as an example. A plurality of PDCCH-to-PDSCH timing relationship sets may be configured using higher layer signaling, and then an indication information field in the PDCCH may be configured using higher layer signaling. A plurality of PDCCH-to-PDSCH timing relationship sets may be configured using higher layer signaling. It can be used to indicate one of the sets. For example, two sets of PDCCH-to-PDSCH timing relationships may be configured using higher layer signaling, where the first of the two sets is {0, 1, 2, 3}, and the second of the two sets The set is {2, 3, 4, 5}. The 1-bit information of the PDCCH can be used to indicate whether the first set is used or the second set is used, for example, if the indication value is “0”, the first set can be used and the indication value is “1” ” then the second set may be used.

When the used PDCCH-to-PDSCH timing relationship set is the first set, the minimum value of the first set {0, 1, 2, 3} is {0}. The UE may not know which value is indicated in the first set before receiving the PDCCH scheduling the PDSCH. Therefore, the UE may have to prepare according to the minimum value {0} in the set of timing relationships. The PDSCH and the PDCCH scheduling the PDSCH are within a single time unit. As shown in FIG. 10 , the UE may need to buffer a data signal in a resource in which the PDSCH can be transmitted while receiving the PDCCH. In addition, since the PDCCH needs to be received quickly, if the timing relationship indication information of the PDCCH indicates a value of {0}, the UE can receive data in-time.

When the UE prepares according to the minimum value of {0} in the timing relationship set and the actual value indicated by the timing relationship indication information in the PDCCH is greater than {0}, for example, equal to 1, the UE is the same time unit as the PDCCH You can stop buffering data with , and buffer data in the next unit of time. In this way the UE can receive the data in time, as shown in FIG. 11 .

If the UE does not prepare according to the minimum value {0} in the timing relation set, for example, the UE prepares according to the {1} value of the timing relation set, and the UE prepares to buffer data in the next time unit. can For example, the UE may not buffer data within the same time unit as the PDCCH before receiving the PDCCH. If the UE finds that the actual value indicated by the timing relationship indication information of the PDCCH after receiving the PDCCH is {0}, the UE may start data buffering, and there may be missing specific data, and the UE is shown in FIG. 12 As shown in , data cannot be received in time. For example, the UE may not buffer data within the same time unit as the PDCCH before receiving the PDCCH. After the UE receives the PDCCH, if it finds that the actual value indicated by the timing relationship indication information of the PDCCH is {1}, then the UE starts buffering data in the next time unit of the PDCCH, and the UE is shown in FIG. data can be received in time. Therefore, if the UE does not prepare according to the minimum value of the set of timing relationships, the UE may occasionally receive data properly, and sometimes it may not receive data in time. In order for the UE to receive data on time in all cases, the UE must prepare according to the minimum value in the set of timing relationships.

When the PDCCH-to-PDSCH timing relationship set is dynamically changed, if the minimum value of the changed PDCCH-to-PDSCH timing relationship set is greater than or equal to the minimum value of the PDCCH-to-PDSCH timing relationship set before the change, the UE sends the PDCCH- Preparation can be made according to the minimum value of the to-PDSCH timing relationship set. Since the minimum value of the PDCCH-to-PDSCH timing relationship set before the change is less than or equal to the minimum value of the changed PDCCH-to-PDSCH timing relationship set, the UE can receive data in time. For example, two sets of PDCCH-to-PDSCH timing relationships may be configured using higher layer signaling, where the first of the two sets is {0, 1, 2, 3}, and the second of the two sets The set is {2, 3, 4, 5}. When the set of timing relationships is changed from the first set to the second set, the UE may prepare according to the minimum value 0 in the first set. All values in the second set are greater than zero so that the UE can receive the data in time.

If the minimum value of the changed PDCCH-to-PDSCH timing relationship set is smaller than the minimum value of the PDCCH-to-PDSCH timing relationship set before the change, the UE may prepare according to the minimum value of the PDCCH-to-PDSCH timing relationship set before the change. Since the minimum value of the PDCCH-to-PDSCH timing relationship set before the change is greater than the minimum value of the changed PDCCH-to-PDSCH timing relationship, the UE may not receive data in time. For example, two sets of PDCCH-to-PDSCH timing relationship may be configured using higher layer signaling. Here, the first of the two sets may be {0, 1, 2, 3}, and the second of the two sets may be {2, 3, 4, 5}. When the timing relationship set is changed from the second set to the first set, the UE prepares according to the minimum value of 2 in the PDCCH-to-PDSCH timing relationship set before the change (eg second set), but indicates the timing relationship of the PDCCH If the actual value indicated by the information is 0 or 1, the UE may not buffer the data in time, and thus the UE may not receive the data in time.

The following various processing methods may be used for the problems existing in the change of the above-described PDCCH-to-PDSCH timing relationship set.

First example:

If the PDCCH-to-PDSCH timing relationship set indicated by the timing relationship set indication information received by the UE is different from the current PDCCH-to-PDSCH timing relationship set, for example, the PDCCH-to-PDSCH timing relationship set is PDCCH-to - After the UE receiving the PDCCH indicating the change of the PDSCH timing relation set ends, it must be changed within T period (eg, the change in the timing relation from the UE receiving the PDCCH to the PDCCH and the PDSCH is the next monitoring time of the PDCCH) time indicating the start or processing delay of the PDCCH), the UE still determines the PDCCH-to-PDSCH timing relationship according to the PDCCH-to-PDSCH timing relationship set before the change and the timing relationship indication information of the PDCCH, and the time T elapses After doing this, the UE may determine the PDCCH-to-PDSCH timing relationship according to the PDCCH-to-PDSCH timing relationship set and PDCCH timing relationship indication information changed in the PDCCH, as shown in FIG. 14 . For example, two sets of PDCCH-to-PDSCH timing relationship may be configured using higher layer signaling, where the first of the two sets may be {0, 1, 2, 3}, and of the two sets The second set may be {2, 3, 4, 5}. The timing relationship set before time slot n may be the first set, and the timing relationship set indication information of the PDCCH in time slot n may indicate the second set of timing relationships. The set of timing relationships may have changed to the second set. However, the timing relationship in the PDCCH scheduling the PDSCH in time slot n may still be determined according to the first set of timing relationships. For example, when the timing relationship indication information value of the PDCCH scheduling the PDSCH is 01, the timing relationship may be 1 according to the mapping relationship between the timing relationship indication information value and the timing relationship as shown in Table 1. For example, the UE should receive the PDSCH in time slot n+1. In this method, the UE uses the pre-change timing relationship set as it is within a certain time after receiving the timing relationship set change indication, so if the UE prepares to receive data according to the minimum value of the pre-change timing relationship set, the UE sends the data in time can receive

However, using this method, if the UE misses the PDCCH indicating a change in the set of timing relationships, the UE and the base station may have different understandings of the set of timing relationships to be used. For example, two sets of PDCCH-to-PDSCH timing relationships may be configured using higher layer signaling, where the first of the two sets may be {0, 1, 2, 3}, and of the two sets The second set may be {2, 3, 4, 5}. Before time slot n, the timing relationship set may be the first set, and in time slot n, the timing relationship set indication information of the PDCCH may indicate the second set of timing relationships. The base station may consider that the set of timing relationships is changed to a second set of timing relationships in time slot n. In time slot n, the UE does not receive a PDCCH indicating that the set of timing relationships is changed to the second set, and the UE may consider that the set of timing relationships in time slot n is still the first set of timing relationships. In time slots n to n+T, the UE does not receive a PDCCH, in time slot n+T+1, the UE receives timing relationship set indication information in a PDCCH indicating a second set of timing relationships, and the UE indicates that the UE This may be considered the first time to receive an indication indicating a change in the set of timing relationships. In time slot n+T+1, the UE may determine the PDCCH-to-PDSCH timing relationship according to the pre-change timing relationship set. However, the base station considers that the terminal has received the timing relationship set indication information in the PDCCH indicating the second set of timing relationships in time slot n, and the UE receives the changed timing relationship set (second set of timing relationships) in time slot n+T+1. ), it may be necessary to determine the PDCCH-to-PDSCH timing relationship. Accordingly, the UE and the base station may have different understandings of the time slot in which the PDSCH is received, as shown in FIG.

Second example:

When the PDCCH-to-PDSCH timing relationship set indicated by the timing relationship set indication information received by the UE is different from the current PDCCH-to-PDSCH timing relationship set, for example, when the PDCCH-to-PDSCH timing relationship set is changed , the UE determines the PDCCH-to-PDSCH timing relationship according to the changed PDCCH-to-PDSCH timing relationship set and the timing relationship indication information of the PDCCH, and the UE prepares to receive data according to the minimum value of the timing relationship set before the change. can In order to check whether the UE prepares according to the minimum value in the pre-change timing relationship set, the UE receives data within T time after the UE receives the PDCCH indicating the change of the PDCCH-top-PDSCH timing relationship set ends. (eg, the period from the end of the terminal receiving the PDCCH indicating the change of the PDCCH-to-PDSCH timing relationship until the start of the next monitoring time of the PDCCH), and the UE schedules the PDSCH transmitted by the base station. It may be considered that the timing relationship value indicated by the timing relationship indication information of is equal to or greater than the minimum value of the timing relationship set before the change. The UE does not want to receive the timing relationship indication information in the PDCCH scheduling the PDSCH transmitted by the base station, which indicates a timing relationship value that is smaller than the minimum value in the pre-change timing relationship set, and the UE can receive data in time can make it After the period T has elapsed, the UE transmits the PDCCH for scheduling the PDSCH transmitted by the base station, even if the timing relationship value indicated by the timing relationship indication information of the PDCCH scheduling the PDSCH transmitted by the base station is smaller than the minimum value of the timing relationship set before the change As shown in FIG. 16 , it may be considered that there is no problem if the timing relationship value indicated by the timing relationship indication information of is equal to or greater than the minimum value of the changed timing relationship set. Using this method, after the UE receives the indication of a change in the timing relationship set, the UE uses the changed timing relationship set, and the timing relationship indication information of the PDCCH scheduling the PDSCH transmitted by the base station is the method implemented by the base station. If the indicated timing relationship value is equal to or greater than the minimum value of the pre-change timing relationship set within a certain period of time, the UE may receive the data in time.

In this way, if the UE misses the PDCCH indicating the change of the set of timing relationships, within a period T (eg, PDCCH-to) after the UE finishes receiving the PDCCH indicating the change of the PDCCH-to-PDSCH timing relationship set. -The period from the end of the terminal receiving the PDCCH indicating the change of the PDSCH timing relationship to the start of the next monitoring time of the PDCCH), the timing relationship value indicated by the timing relationship indication information in the PDCCH scheduling the PDSCH transmitted by the base station There may be cases where it is less than the minimum of the set of timing relationships before this change. This can be regarded as an error case, and the UE only needs to stop receiving the PDSCH. For example, two sets of PDCCH-to-PDSCH timing relationships may be configured using higher layer signaling, where the first of the two sets may be {0, 1, 2, 3}, and of the two sets The second set may be {2, 3, 4, 5}. Before time slot n, the timing relationship set is the second set, and in time slot n, the timing relationship set indication information of the PDCCH may indicate the first set of timing relationships. The base station may consider that the set of timing relationships is changed to the first set of timing relationships in time slot n. In time slot n, the UE does not receive a PDCCH indicating that the set of timing relationships has been changed to the first set, and the UE may consider that the set of timing relationships in time slot n is still the second set of timing relationships. In time slots n to n+T, the UE does not receive a PDCCH, in time slot n+T+1, the UE receives timing relationship set indication information in a PDCCH indicating a first set of timing relationships, and the UE indicates that the UE This may be considered the first time to receive an indication indicating a change in the set of timing relationships. In time slot n+T+1, the UE may determine the PDCCH-to-PDSCH timing relationship according to the changed set of timing relationships, that is, the timing relationship may be determined according to the first set of timing relationships, but the UE It may be considered that the timing relationship value indicated by the timing relationship indication information of the PDCCH scheduling the PDSCH is equal to or greater than the minimum value {2} of the second timing relationship set before the change. However, the base station receives the timing relationship set indication information in the PDCCH indicating the first timing relationship set in time slot n, and the timing relationship indication of the PDCCH scheduling the PDSCH transmitted by the base station in time slot n+T+1 The timing relationship value indicated by the information may be regarded as {0}, which may be less than the minimum value {2} in the current pre-change timing relationship set. Accordingly, the timing relationship value indicated by the timing relationship indication information in the PDCCH scheduling the PDSCH transmitted by the base station is {0}. The UE considers this to be an error, and the UE may stop the PDSCH at time slot n+T+1 scheduled by the PDCCH at time slot n+T+1, as shown in FIG. 17 .

The method of dynamically changing the timing relationship (k0) set of the scheduled PDSCH in the PDCCH scheduling the PDSCH is as described above. The method of dynamically changing the timing relationship (k2) set of the PDSCH scheduled in the PDCCH scheduling the PUSCH and the method of dynamically changing the timing relationship (k1) set of the PDSCH by transmission of the HARQ-ACK generated by the PDSCH are as follows. can be described in more detail.

The dynamic change of the three sets of timing relationships may each be indicated by a separate method, or at least two of the three sets of timing relationships described above may be combined and indicated. For example, the timing relationship (k0) set of the scheduled PDSCH in the PDCCH scheduling the PDSCH and the timing relationship (k1) set of the PDSCH until the transmission of the HARQ-ACK generated by the PDSCH are combined, for example, as shown in Table 4 can be displayed. Table 4 illustrates a mapping rule between indication field values, a timing relationship k0 from downlink allocation to downlink data, and a timing relationship k1 from transmission of HARQ-ACK generated by PDSCH.

field display value k0 k1 00 0 2 01 One 3 10 2 4 11 3 5

When the dynamic change of the set of timing relationships (k0) between PDCCHs scheduling PDSCHs as scheduled PDSCHs is indicated by information of PDCCHs that do not schedule PDSCHs (eg, dedicated PDCCHs), this indication information is indicated by the UE may be omitted by At this time, the base station may consider that the changed timing relationship (represented by k0-1) between the PDCCH scheduling the PDSCH and the scheduled PDSCH is used, and the UE may not change between the PDCCH scheduling the PDSCH and the scheduled PDSCH. A timing relationship (denoted by k0-0) may be considered to be used. At this time, regardless of how the timing relationship set changes, the number of bits of timing relationship indication information in the PDCCH scheduling the PDSCH may not change (in addition, the timing relationship between the PDCCH scheduling the PDSCH and the scheduled PDSCH (k0)) When the dynamic change of the set is indicated by the information of the PDCCH scheduling the PDSCH, the number of bits of the timing relationship indication information in the PDCCH scheduling the PDSCH may not change in order not to change the number of bits of the PDCCH format). The timing relationship indication information of the PDCCH scheduling the PDSCH may indicate the timing relationship set S before the constraint is applied, for example, S is 8 of {0, 1, 2, 3, 4, 5, 6, 7}. may be composed of five elements, and the number of bis of the timing relationship indication information may be three. Different sets of timing relationships can be obtained by applying different constraints on the PDCCH-to-PDSCH timing relationship sets. For example, as shown in Table 5, set S1 may consist of {0, 1, 2, 3}, and set S2 may consist of {2, 3, 4, 5, 6}. Table 5 illustrates a mapping rule between a timing relationship indication value and a timing relationship k0 from downlink allocation to downlink data.

Timing relationship display value k0 000 0 001 One 010 2 011 3 100 4 101 5 110 6 111 7

In the above way, if the UE misses the PDCCH indicating a change in the timing relationship set, the base station and the UE may have different understandings of the correspondence between the timing relationship indication value from the downlink allocation to the downlink data and the timing relationship k0 If the UE misses the indication information indicating a change in the timing relationship set, if the UE receives a timing relationship indication value (indicated by k0_1) that is less than the minimum value of the current timing relationship set in the PDCCH scheduling the PDSCH, the timing relationship set The minimum value of may be k0_1, and the UE may prepare to receive data according to the minimum value k0_1 of the timing relationship set. For example, the current set of timing relationships may be {2, 3, 4, 5, 6} and the minimum value of the set of timing relationships may be 2. When the UE receives the timing relationship value {0} in the PDCCH scheduling the PDSCH, the minimum value of the timing relationship set becomes 0, and the UE may prepare to receive data according to the minimum value 0 in the timing relationship set.

When the UE is configured with one or more downlink bandwidth parts (BWPs), the interval indicated by the minimum value in the set of timing relationships (k0) configured for one BWP is indicated by the maximum value in the set of timing relationships (k0) configured for any BWP. It may not be more than the price. In this way, when switching the BWP, the UE can prepare for data reception according to the minimum value of the timing relationship (k0) set before the BWP switching, and when the UE schedules the PDSCH and receives the PDCCH indicating the switching of the BWP, the UE switches It is possible to receive the PDSCH scheduled in the BWP. Otherwise, the UE may not receive the scheduled PDSCH in the switched BWP in time. For example, the set of timing relationships k0 before BWP transition may be {4, 5, 6, 7}, and the set of timing relationships k0 after BWP transition may be {0, 1, 2, 3}. Therefore, the minimum value 4 of the set of timing relationships k0 before switching of the BWP is greater than the maximum value of 3 of the set of timing relationships k0 after switching of the BWP. If the UE schedules the PDSCH on the switched BWP to the PDCCH on the non-switched BWP, there may be a time interval of 3 slots between the PDCCH and the PDSCH to be scheduled by the PDCCH. The UE may prepare to receive the PDSCH according to the minimum value of 4 in the timing relationship k0 set before BWP switching, and thus may not receive the PDSCH having a 3-slot interval from the PDCCH in time.

If the dynamic change of the timing relationship (k0) set between the PDCCH scheduling the PDSCH and the scheduled PDSCH is indicated by the information of the PDCCH not scheduling the PDSCH (eg, dedicated PDCCH), the UE receives the dedicated PDCCH When doing, the UE must feed back ACK information or the time interval from the dedicated PDCCH to the ACK transmission may be determined by a higher layer signaling configuration, where the dedicated PDCCH is HARQ indicating the time interval from the dedicated PDCCH to the transmission of the ACK It may include an indication of a timing relationship.

The dedicated PDCCH may be transmitted according to a set period. If the UE receives the dedicated PDCCH when the configured period arrives, the UE may prepare to receive the PDSCH according to the minimum value of the indicated timing relationship set. If the UE does not receive the dedicated PDCCH when the set period arrives, the UE may prepare for PDSCH reception according to the minimum value of the default timing relationship set, or the PDSCH according to the minimum value of the timing relationship set indicated by the previously received dedicated PDCCH. be ready to receive.

When the above solution for dynamically changing the timing relationship (k0) set from the PDCCH scheduling PDSCH to the scheduled PDSCH is applied to the dynamic change of the timing relationship (k2) set of the PUSCH scheduled in the PDCCH scheduling PUSCH, only Only the corresponding adjustment needs to be performed. For example, a PDCCH scheduling a PDSCH may be replaced with a PDCCH scheduling a PUSCH, a scheduled PDSCH may be replaced with a scheduled PUSCH, and a timing relationship (k0) from a PDCCH scheduling a PDSCH to a scheduled PDSCH is It may be replaced with a timing relationship (k2) from a PDCCH scheduling a PUSCH to a scheduled PUSCH, and a set of timing relationships (k0) of a PDSCH scheduled in a PDCCH scheduling a PDSCH is a timing relationship of a PUSCH scheduled in a PDCCH scheduling a PUSCH. (k2) may be replaced by a set.

The above solution for dynamically changing the timing relationship (k0) set of the scheduled PDSCH in the PDCCH scheduling the PDSCH is applied to the dynamic change of the timing relationship (k1) set of the PDSCH with the transmission of the HARQ-ACK generated by the PDSCH. case, only the corresponding adjustment needs to be performed. For example, a PDCCH scheduling a PDSCH may be replaced with a PDSCH generating HARQ-ACK, a scheduled PDSCH may be replaced with a HARQ-ACK generated by a PDSCH, and a PDSCH scheduled from a PDCCH scheduling a PDSCH. The timing relationship (k0) to R may be replaced by the timing relationship (k1) from the PDSCH to the HARQ-ACK transmission generated by the PDSCH, and the timing relationship (k0) set of the PDSCH scheduled in the PDCCH scheduling the PDSCH is set to the PDSCH. Until the transmission of the HARQ-ACK generated by the PDSCH may be replaced with a set of timing relationships (k1).

In the present disclosure, the timing relationship set can be dynamically changed, the power consumption of the UE can be saved, and data transmission can be timely.

18 is a block diagram of an electronic device 1801 in a network environment 1800, according to various embodiments. The electronic device 1801 may be a UE illustrated in FIG. 6 or a base station illustrated in FIG. 7 .

Referring to FIG. 18 , in a network environment 1800 , the electronic device 1801 communicates with the electronic device 1802 through a first network 1898 (eg, a short-range wireless communication network) or a second network 1899 . It may communicate with the electronic device 1804 or the server 1808 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 1801 may communicate with the electronic device 1804 through the server 1808 . According to an embodiment, the electronic device 1801 includes a processor 1820 , a memory 1830 , an input device 1850 , a sound output device 1855 , a display device 1860 , an audio module 1870 , and a sensor module ( 1876 , interface 1877 , haptic module 1879 , camera module 1880 , power management module 1888 , battery 1889 , communication module 1890 , subscriber identification module 1896 , or antenna module 1897 . ) may be included. In some embodiments, at least one of these components (eg, the display device 1860 or the camera module 1880) may be omitted or one or more other components may be added to the electronic device 1801 . In some embodiments, some of these components may be implemented as one integrated circuit. For example, the sensor module 1876 (eg, a fingerprint sensor, an iris sensor, or an illuminance sensor) may be implemented while being embedded in the display device 1860 (eg, a display).

The processor 1820, for example, executes software (eg, a program 1840) to execute at least one other component (eg, a hardware or software component) of the electronic device 1801 connected to the processor 1820. It can control and perform various data processing or operations. According to one embodiment, as at least part of data processing or computation, the processor 1820 converts commands or data received from other components (eg, the sensor module 1876 or the communication module 1890 ) to the volatile memory 1832 . may load into the volatile memory 1832 , process commands or data stored in the volatile memory 1832 , and store the resulting data in the non-volatile memory 1834 . According to one embodiment, the processor 1820 includes a main processor 1821 (eg, a central processing unit or an application processor), and a coprocessor 1823 (eg, a graphics processing unit, an image signal processor) capable of operating independently or in conjunction with the main processor 1821 (eg, a graphics processing unit or an image signal processor). , a sensor hub processor, or a communication processor). Additionally or alternatively, the auxiliary processor 1823 may be configured to use less power than the main processor 1821 or to specialize in a designated function. The coprocessor 1823 may be implemented separately from or as part of the main processor 1821 .

The coprocessor 1823 may, for example, act on behalf of the main processor 1821 while the main processor 1821 is in an inactive (eg, sleep) state, or the main processor 1821 may be active (eg, executing an application). ), together with the main processor 1821, at least one of the components of the electronic device 1801 (eg, the display device 1860, the sensor module 1876, or the communication module 1890) It is possible to control at least some of the related functions or states. According to one embodiment, the coprocessor 1823 (eg, image signal processor or communication processor) may be implemented as part of another functionally related component (eg, camera module 1880 or communication module 1890). have.

The memory 1830 may store various data used by at least one component of the electronic device 1801 (eg, the processor 1820 or the sensor module 1876 ). The data may include, for example, input data or output data for software (eg, a program 1840 ) and commands related thereto. The memory 1830 may include a volatile memory 1832 or a non-volatile memory 1834 .

The program 1840 may be stored as software in the memory 1830 , and may include, for example, an operating system 1842 , middleware 1844 , or an application 1846 .

The input device 1850 may receive a command or data to be used in a component (eg, the processor 1820 ) of the electronic device 1801 from the outside (eg, a user) of the electronic device 1801 . The input device 1850 may include, for example, a microphone, a mouse, a keyboard, or a digital pen (eg, a stylus pen).

The sound output device 1855 may output a sound signal to the outside of the electronic device 1801 . The sound output device 1855 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as multimedia playback or recording playback, and the receiver can be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from or as part of the speaker.

The display device 1860 may visually provide information to the outside (eg, a user) of the electronic device 1801 . The display device 1860 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the corresponding device. According to an embodiment, the display device 1860 may include a touch circuitry configured to sense a touch or a sensor circuit (eg, a pressure sensor) configured to measure the intensity of a force generated by the touch. have.

The audio module 1870 may convert a sound into an electric signal or, conversely, convert an electric signal into a sound. According to an embodiment, the audio module 1870 acquires a sound through the input device 1850 or an external electronic device (eg, a sound output device 1855 ) directly or wirelessly connected to the electronic device 1801 . The electronic device 1802) (eg, a speaker or headphones) may output sound.

The sensor module 1876 detects an operating state (eg, power or temperature) of the electronic device 1801 or an external environmental state (eg, user state), and generates an electrical signal or data value corresponding to the sensed state. can do. According to one embodiment, the sensor module 1876 may include, for example, a gesture sensor, a gyro sensor, a barometric sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.

The interface 1877 may support one or more specified protocols that may be used for the electronic device 1801 to directly or wirelessly connect with an external electronic device (eg, the electronic device 1802). According to an embodiment, the interface 1877 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 1878 may include a connector through which the electronic device 1801 can be physically connected to an external electronic device (eg, the electronic device 1802 ). According to an embodiment, the connection terminal 1878 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 1879 may convert an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic sense. According to an embodiment, the haptic module 1879 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 1880 may capture still images and moving images. According to one embodiment, the camera module 1880 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 1888 may manage power supplied to the electronic device 1801 . According to an embodiment, the power management module 388 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

The battery 1889 may supply power to at least one component of the electronic device 1801 . According to one embodiment, battery 1889 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 1890 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 1801 and an external electronic device (eg, the electronic device 1802, the electronic device 1804, or the server 1808). It can support establishment and communication through the established communication channel. The communication module 1890 may include one or more communication processors that operate independently of the processor 1820 (eg, an application processor) and support direct (eg, wired) communication or wireless communication. According to one embodiment, the communication module 1890 is a wireless communication module 1892 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 1894 (eg, : LAN (local area network) communication module, or a power line communication module) may be included. Among these communication modules, a corresponding communication module is a first network 1898 (eg, a short-range communication network such as Bluetooth, WiFi direct, or infrared data association (IrDA)) or a second network 1899 (eg, a cellular network, the Internet, or It may communicate with an external electronic device via a computer network (eg, a telecommunication network such as a LAN or WAN). These various types of communication modules may be integrated into one component (eg, a single chip) or may be implemented as a plurality of components (eg, multiple chips) separate from each other. The wireless communication module 1892 uses subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 1896 within a communication network, such as the first network 1898 or the second network 1899 . The electronic device 1801 may be identified and authenticated.

The antenna module 1897 may transmit or receive a signal or power to the outside (eg, an external electronic device). According to an embodiment, the antenna module may include one antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern. According to an embodiment, the antenna module 1897 may include a plurality of antennas. In this case, at least one antenna suitable for a communication scheme used in a communication network such as the first network 1898 or the second network 1899 is connected from the plurality of antennas by, for example, the communication module 1890 . can be selected. A signal or power may be transmitted or received between the communication module 1890 and an external electronic device through the selected at least one antenna. According to some embodiments, other components (eg, RFIC) other than the radiator may be additionally formed as a part of the antenna module 1897 .

At least some of the components are connected to each other through a communication method between peripheral devices (eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and a signal ( e.g. commands or data) can be exchanged with each other.

According to an embodiment, the command or data may be transmitted or received between the electronic device 1801 and the external electronic device 1804 through the server 1808 connected to the second network 1899 . Each of the electronic devices 1802 and 1804 may be the same or a different type of device from the electronic device 1801 . According to an embodiment, all or some of the operations executed by the electronic device 1801 may be executed by one or more of the external electronic devices 1802 , 1804 , or 1808 . For example, when the electronic device 1801 needs to perform a function or service automatically or in response to a request from a user or other device, the electronic device 1801 may perform the function or service by itself instead of executing the function or service itself. Alternatively or additionally, one or more external electronic devices may be requested to perform at least a part of the function or the service. The one or more external electronic devices that have received the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit a result of the execution to the electronic device 1801 . The electronic device 1801 may process the result as it is or additionally and provide it as at least a part of a response to the request. For this purpose, for example, cloud computing, distributed computing, or client-server computing technology may be used.

The electronic device according to various embodiments may have various types of devices. The electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance device. The electronic device according to the embodiment of the present document is not limited to the above-described devices.

It should be understood that the various embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and include various modifications, equivalents, or substitutions of the embodiments. In connection with the description of the drawings, like reference numerals may be used for similar or related components. The singular form of the noun corresponding to the item may include one or more of the item, unless the relevant context clearly indicates otherwise. 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 “A , B, or C" each may include any one of the items listed together in the corresponding one of the phrases, or all possible combinations thereof. Terms such as “first”, “second”, or “first” or “second” may simply be used to distinguish the component from other such components, and refer to the component in another aspect (e.g., importance or order) is not limited. References of one (e.g. first) component to "connected" or "coupled" to another (e.g. second) component with or without the terms "functionally" or "communicatively" , it means that one component can be connected to the other component directly (eg, by wire), wirelessly, or through a third component.

As used herein, the term “module” may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as, for example, logic, logic block, component, or circuit. A module may be an integrally formed part or a minimum unit or a part of the part that performs 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).

Various embodiments of the present document include one or more instructions stored in a storage medium (eg, internal memory 1436 or external memory 1438) readable by a machine (eg, electronic device 1401). may be implemented as software (eg, a program 1440) including For example, a processor (eg, processor 1420 ) of a device (eg, electronic device 1401 ) may call at least one command among one or more commands stored from a storage medium and execute it. This makes it possible for the device to be operated to perform at least one function according to the at least one command called. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' only means that the storage medium is a tangible device and does not contain a signal (eg, electromagnetic wave), and this term refers to the case where data is semi-permanently stored in the storage medium and temporary. It does not distinguish the case where it is stored as

According to one embodiment, the method according to various embodiments disclosed in this document may be provided as included in a computer program product. Computer program products may be traded between sellers and buyers as commodities. The computer program product is distributed in the form of a machine-readable storage medium (eg compact disc read only memory (CD-ROM)), or through an application store (eg Play Store ^TM ) or on two user devices ( It can be distributed (eg downloaded or uploaded) directly, online between smartphones (eg: smartphones). In the case of online distribution, at least a part of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium such as a memory of a server of a manufacturer, a server of an application store, or a relay server.

According to various embodiments, each component (eg, a module or a program) of the above-described components may include a singular or a plurality of entities. According to various embodiments, one or more components or operations among the above-described corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (eg, a module or a program) may be integrated into one component. In this case, the integrated component may perform one or more functions of each component of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. . According to various embodiments, operations performed by a module, program, or other component are executed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations are executed in a different order, or omitted. or one or more other operations may be added.

While the present disclosure has been illustrated and described with reference to various exemplary embodiments, it should be understood that the various exemplary embodiments are intended to be illustrative and not restrictive. It will be understood by those skilled in the art that various changes in form and detail may be made without departing from the spirit and scope of the disclosure, and that various changes should be considered to be within the scope of the disclosure.

Claims (15)

In a method of operating a terminal in a wireless communication system,
receiving a timing relationship set indication indicating a timing relationship set for use in a terminal;
determining a timing relationship based on the indication of the timing relationship set;
Receiving timing relationship indication information indicating a timing relationship for use in a terminal; and
and determining a timing relationship to be used in the terminal based on the timing relationship set and the timing relationship indication information.
According to claim 1,
The timing relationship set display is
a field related to a set of timing relationships of a physical downlink control channel (PDCCH) configured to schedule a physical downlink shared channel (PDSCH);
a field related to a set of timing relationships of a PDCCH configured not to schedule a PDSCH;
reference signal;
other control information configured to change dynamically;
information transmitted along with other control information configured to be dynamically changed; and
A method comprising at least one of a constraint on a set comprising a set of timing relationships.
According to claim 1,
The determined set of timing relationships is
Indicates that a change in the set of timing relationships has occurred,
The process of determining a timing relationship for use in the terminal based on the timing relationship set and the timing relationship indication information includes:
determining a timing relationship to be used in the terminal based on the timing relationship set and timing relationship indication information before the change, within a predetermined period of time for determining that the change of the timing relationship set has occurred;
preparing for data transmission based on the minimum value of the pre-change timing relationship set;
determining a timing relationship for use in a terminal based on the changed timing relationship set and timing relationship indication information according to the lapse of a predetermined period of time; and
and preparing for data transmission based on the minimum value of the set of timing relationships after the change.
According to claim 1,
The determined set of timing relationships is
Indicates that a change in the set of timing relationships has occurred,
The process of determining a timing relationship for use in the terminal based on the timing relationship set and the timing relationship indication information includes:
determining a timing relationship to be used in the terminal based on the timing relationship set and the timing relationship indication information after change;
After determining that the change of the timing relationship set has occurred, based on the value of the timing relationship indicated by the timing relationship indication information being less than the minimum value of the timing relationship before the change, within a predetermined period of time, the timing relationship indication information stopping data transmission before displaying the timing relationship by
preparing for data transmission based on the minimum value of the set of timing relationships before change; and
and after determining that the change in the set of timing relationships has elapsed, based on a predetermined period of time, preparing for data transmission based on a minimum value of the set of timing relationships after the change, based on a predetermined period of time.
The method of claim 1, wherein the timing relationship of the set of timing relationships comprises:
timing relationship between the PDCCH and the PDSCH to be scheduled by the PDCCH;
timing relationship between PDSCH and its hybrid automatic repeat request acknowledgment; and
A method of indicating at least one of a timing relationship between a PDCCH and a physical uplink shared channel (PUSCH) to be scheduled by the PDCCH.
6. The method of claim 5, wherein the plurality of sets of different types of timing relationships are displayed individually or in combination based on the set of timing relationships comprising a plurality of sets of different types of timing relationships.
In a method of operating a terminal in a wireless communication system,
selecting a timing relationship set for use in a terminal from a plurality of timing relationship sets;
transmitting a timing relationship set indication for indicating the selected timing relationship set to the terminal;
determining a timing relationship for use for a terminal in the selected timing relationship set; and
and transmitting a timing relationship indication for indicating the selected timing relationship to the terminal.
8. The method of claim 7,
The process of selecting a timing relationship set for use for a terminal from the plurality of timing relationship sets includes:
A method comprising determining a set of timing relationships for use in a terminal based on an amount of data to be transmitted by the terminal and a requirement for data transmission delay.
8. The method of claim 7,
The process of determining a timing relationship for use for a terminal in the selected timing relationship set,
A timing previously selected for the terminal from the selected set of timing relationships within a predetermined period of time to be used for the terminal based on the selected set of timing relationships being different from the set of timing relationships previously selected for the terminal. A method comprising selecting a timing relationship having a value greater than or equal to a minimum value in a relationship set.
A terminal device in a wireless communication system, comprising:
transceiver; and
at least one processor coupled to the transceiver;
The processor is
receiving a timing relationship set indication indicating a timing relationship for use in the terminal;
determine a timing relationship based on the indication of the timing relationship set;
Receiving the timing relationship indication information indicating the timing relationship for use in the terminal,
and determine a timing relationship for use in a terminal based on the timing relationship set and the timing relationship indication information.
11. The method of claim 10,
The timing relationship set display is
a field related to a set of timing relationships of a physical downlink control channel (PDCCH) configured to schedule a physical downlink shared channel (PDSCH);
a field related to a set of timing relationships of a PDCCH configured not to schedule a PDSCH;
reference signal;
other control information configured to change dynamically;
information transmitted along with other control information configured to be dynamically changed; and
A terminal device comprising at least one of constraints on sets constituting the timing relationship set.
11. The method of claim 10,
The determined set of timing relationships is
Indicates that a change in the set of timing relationships has occurred,
the at least one processor,
determine a timing relationship to be used in the terminal based on the timing relationship set and the timing relationship indication information before the change, within a predetermined period of time for determining that the change of the set of timing relationships has occurred;
prepare for data transmission based on the minimum value of the set of timing relationships before the change;
determine a timing relationship for use in the terminal based on the changed timing relationship set and timing relationship indication information according to the lapse of a predetermined period of time;
and prepare for data transmission based on the minimum value of the set of timing relationships after the change.
11. The method of claim 10,
The determined set of timing relationships is
Indicates that a change in the set of timing relationships has occurred,
the at least one processor,
After the change, based on the timing relationship set and the timing relationship indication information, determine a timing relationship to be used in the terminal,
After determining that the change of the timing relationship set has occurred, within a predetermined period of time, based on that the value of the timing relationship indicated by the timing relationship indication information is less than the minimum value of the timing relationship before the change, the timing relationship indication information Stop data transmission before timing relationship indication by
prepare for data transmission based on the minimum value of the set of timing relationships before change;
and, after determining that the change in the set of timing relationships has elapsed, prepare for data transmission based on the minimum value of the set of timing relationships after the change, based on within a predetermined period of time.
11. The method of claim 10, wherein the timing relationship of the set of timing relationships comprises:
timing relationship between the PDCCH and the PDSCH to be scheduled by the PDCCH;
timing relationship between PDSCH and its hybrid automatic repeat request acknowledgment; and
A terminal device indicating at least one of a timing relationship between a PDCCH and a physical uplink shared channel (PUSCH) to be scheduled by the PDCCH.
The terminal device according to claim 14, wherein, based on the set of timing relationships including sets of timing relationships of a plurality of different types, the sets of timing relationships of the plurality of different types are displayed individually or in combination.

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