WO2020141929A1 - Always-on signal reception method performed by terminal in wireless communication system, and terminal using same method - Google Patents

Abstract

The present specification provides a method for receiving an always-on signal, the method being performed by a terminal in a wireless communication system and comprising: receiving discontinuous reception (DRX) configuration information from a base station; and performing a DRX operation on the basis of the DRX configuration information, wherein: an active time and a sleep time are included in a cycle of the DRX operation; the terminal receives configuration information on the always-on signal from the base station; the configuration information on the always-on signal includes beam information; and the terminal receives the always-on signal from the sleep time on the basis of the configuration on the always-on signal.

Description

A method for receiving an always-on signal performed by a terminal in a wireless communication system and a terminal using the method

This specification relates to wireless communication.

As more communication devices require a larger communication capacity, there is a need for improved mobile broadband communication compared to a conventional radio access technology (RAT). Massive Machine Type Communications (MTC), which provides a variety of services anytime, anywhere by connecting multiple devices and objects, is also one of the major issues to be considered in next-generation communication. In addition, a communication system design considering a service/terminal sensitive to reliability and latency is being discussed. The introduction of next-generation wireless access technology in consideration of such extended mobile broadband communication, massive MTC, and Ultra-Reliable and Low Latency Communication (URLLC) is discussed, and in this specification, for convenience, the technology is applied. Is called new RAT or NR.

Since there is always CRS transmitted in the LTE system, there may be no problem in performing AGC. However, in the NR system, CRS does not exist, and a synchronization (sync.) signal and PBCH, which are always transmitted, may be inefficient because a transmission period may not coincide with a section performing AGC.

Accordingly, in this specification, it is intended to provide a configuration in which a base station transmits an always on signal to a terminal.

According to an embodiment of the present disclosure, a terminal receiving the always-on signal at the sleep time based on the setting information for the always-on signal is provided.

According to the present specification, the UE can prevent frequent wake-up due to a mismatch between paging occasion and SSB transmission time, and waste power due to switching between the sleep mode and the active mode and deterioration of reception performance in the active mode It can be effectively prevented. In addition, the network can reduce the scheduling limitation by a designated signal such as RS by using the always-on signal, so that more efficient scheduling can be performed.

The effects obtainable through specific examples of the present specification are not limited to the effects listed above. For example, there may be various technical effects that a person having ordinary skill in the related art can understand or derive from this specification. Accordingly, the specific effects of the present specification are not limited to those explicitly described herein, and may include various effects that can be understood or derived from the technical features of the present specification.

1 illustrates a wireless communication system.

2 is a block diagram showing a radio protocol architecture for a user plane.

3 is a block diagram showing a radio protocol structure for a control plane.

4 illustrates a system structure of a New Generation Radio Access Network (NG-RAN) to which NR is applied.

5 illustrates functional division between NG-RAN and 5GC.

6 illustrates a frame structure that can be applied in NR.

7 illustrates CORESET.

8 is a view showing a difference between a conventional control region and CORESET in NR.

9 shows an example of a frame structure for a new radio access technology.

10 is an abstract diagram of a hybrid beamforming structure from the perspective of the TXRU and the physical antenna.

11 is a diagram illustrating the beam sweeping operation for a synchronization signal and system information in a downlink (DL) transmission process.

12 shows an example of a 5G usage scenario to which the technical features of the present specification can be applied.

13 is a flowchart illustrating an example of performing an idle mode DRX operation.

14 schematically illustrates an example of an idle mode DRX operation.

15 is a flowchart showing an example of a method for performing a C-DRX operation.

16 schematically illustrates an example of C-DRX operation.

17 illustrates a scenario in which three different bandwidth parts are set.

18 schematically shows an example of an area in which the terminal performs AGC.

19 is a flowchart of a method for a terminal to receive setting information related to an always-on gnal according to an example of the present specification.

20 is a flowchart of a method of receiving configuration information for an always-on signal according to an embodiment of the present specification.

21 schematically illustrates an example in which the terminal performs AGC according to the present specification.

22 is a flowchart of a method for a terminal to receive configuration information for an always-on signal according to an embodiment of the present specification.

23 is a flowchart of a method for a terminal to receive configuration information for an always-on signal according to another embodiment of the present specification.

24 is a block diagram schematically showing an example of a device for receiving a configuration information for an always-on signal according to an embodiment of the present specification.

25 is a flowchart of a method for a base station to transmit configuration information for an always-on signal according to an embodiment of the present specification.

26 is a block diagram schematically showing an example of an apparatus for transmitting configuration information for an always-on signal according to an embodiment of the present specification.

27 illustrates a communication system 1 applied to the present specification.

28 illustrates a wireless device that can be applied to the present specification.

29 shows another example of a wireless device that can be applied to the present specification.

30 illustrates a signal processing circuit for a transmission signal.

31 shows another example of a wireless device applied to the present specification.

32 illustrates a mobile device applied to the present specification.

33 illustrates a vehicle or an autonomous vehicle applied to the present specification.

The slash (/) or comma (comma) used in this specification may mean “and/or” (and/or). For example, “A/B” means “A and/or B”, and thus may mean “only A” or “only B” or “one of A and B”. In addition, technical features that are individually described in one drawing may be individually or simultaneously implemented. Also, parentheses used in the present specification may mean “for example”. Specifically, when indicated as “control information (PDCCH)”, “PDCCH” may be proposed as an example of “control information”. Further, even when indicated as “control information (ie, PDCCH)”, “PDCCH” may be proposed as an example of “control information”.

In the following specification, “/” and “,” should be interpreted to indicate “and/or”. For example, “A/B” may mean “A and/or B”. Furthermore, “A, B” may mean “A and/or B”. Furthermore, “A/B/C” may mean “at least one of A, B, and/or C”. Furthermore, “A, B, and C” may mean “at least one of A, B, and/or C”.

Furthermore, in the following specification, “or” should be interpreted to indicate “and/or”. For example, “A or B” may include “only A”, “only B”, and/or “both A and B”. In other words, in the following specification, “or” should be interpreted to indicate “additionally or alternatively”.

1 illustrates a wireless communication system. This may also be referred to as E-UTRAN (Evolved-UMTS Terrestrial Radio Access Network), or Long Term Evolution (LTE)/LTE-A system.

The E-UTRAN includes a base station (BS) that provides a control plane and a user plane to a user equipment (UE) 10. The terminal 10 may be fixed or mobile, and may be called other terms such as a mobile station (MS), a user terminal (UT), a subscriber station (SS), a mobile terminal (MT), or a wireless device. . The base station 20 refers to a fixed station communicating with the terminal 10, and may be referred to as other terms such as an evolved-NodeB (eNB), a base transceiver system (BTS), and an access point.

The base stations 20 can be connected to each other through an X2 interface. The base station 20 is connected to an evolved packet core (EPC) 30 through an S1 interface, and more specifically, a mobility management entity (MME) through a S1-MME and a serving gateway (S-GW) through a S1-U.

EPC 30 is composed of MME, S-GW and P-GW (Packet Data Network-Gateway). The MME has information on the access information of the terminal or the capability of the terminal, and such information is mainly used for mobility management of the terminal. S-GW is a gateway with E-UTRAN as an endpoint, and P-GW is a gateway with PDN as an endpoint.

The layers of the radio interface protocol between the terminal and the network are based on the lower three layers of the Open System Interconnection (OSI) reference model, which is widely known in communication systems, L1 (first layer), It can be divided into L2 (second layer) and L3 (third layer). Among them, the physical layer belonging to the first layer provides an information transfer service using a physical channel. The radio resource control (RRC) layer located in the third layer serves to control radio resources between the terminal and the network. To this end, the RRC layer exchanges RRC messages between the terminal and the base station.

2 is a block diagram showing a radio protocol architecture for a user plane. 3 is a block diagram showing a radio protocol structure for a control plane. The user plane is a protocol stack for transmitting user data, and the control plane is a protocol stack for transmitting control signals.

2 and 3, a physical layer (PHY (physical) layer) provides an information transfer service (information transfer service) to the upper layer by using a physical channel (physical channel). The physical layer is connected to the upper layer, the medium access control (MAC) layer, through a transport channel. Data moves between the MAC layer and the physical layer through the transport channel. Transport channels are classified according to how and with what characteristics data is transmitted through a wireless interface.

Data moves between different physical layers, that is, between physical layers of a transmitter and a receiver through a physical channel. The physical channel can be modulated by an Orthogonal Frequency Division Multiplexing (OFDM) method, and utilizes time and frequency as radio resources.

The functions of the MAC layer include mapping between logical channels and transport channels, and multiplexing/demultiplexing into transport blocks provided as physical channels on transport channels of MAC service data units (SDUs) belonging to logical channels. The MAC layer provides a service to a radio link control (RLC) layer through a logical channel.

The functions of the RLC layer include concatenation, segmentation and reassembly of RLC SDUs. In order to guarantee various quality of service (QoS) required by a radio bearer (RB), the RLC layer includes a transparent mode (TM), an unacknowledged mode (UM) and an acknowledgment mode (Acknowledged Mode). , AM). AM RLC provides error correction through automatic repeat request (ARQ).

RRC (Radio Resource Control) layer is defined only in the control plane. The RRC layer is responsible for control of logical channels, transport channels, and physical channels in connection with configuration, re-configuration, and release of radio bearers. RB means a logical path provided by the first layer (PHY layer) and the second layer (MAC layer, RLC layer, PDCP layer) for data transmission between the terminal and the network.

The functions of the Packet Data Convergence Protocol (PDCP) layer in the user plane include the transfer of user data, header compression, and ciphering. The functions of the Packet Data Convergence Protocol (PDCP) layer in the control plane include transmission of control plane data and encryption/integrity protection.

The establishment of the RB means a process of defining characteristics of a radio protocol layer and a channel to provide a specific service, and setting each specific parameter and operation method. The RB can be divided into two types: a signaling RB (SRB) and a data RB (DRB). SRB is used as a channel for transmitting RRC messages in the control plane, and DRB is used as a channel for transmitting user data in the user plane.

When an RRC connection is established between the RRC layer of the UE and the RRC layer of the E-UTRAN, the UE is in an RRC connected state, otherwise it is in an RRC idle state.

A downlink transport channel for transmitting data from a network to a terminal includes a broadcast channel (BCH) for transmitting system information and a downlink shared channel (SCH) for transmitting user traffic or control messages. Traffic or control messages of a downlink multicast or broadcast service may be transmitted through a downlink SCH, or may be transmitted through a separate downlink multicast channel (MCH). On the other hand, an uplink transport channel for transmitting data from a terminal to a network includes a random access channel (RACH) for transmitting an initial control message and an uplink shared channel (SCH) for transmitting user traffic or a control message.

Logical channels that are above the transport channel and are mapped to the transport channel include BCCH (Broadcast Control Channel), PCCH (Paging Control Channel), CCCH (Common Control Channel), MCCH (Multicast Control Channel), and MTCH (Multicast Traffic). Channel).

A physical channel is composed of several OFDM symbols in the time domain and several sub-carriers in the frequency domain. One sub-frame (Sub-frame) is composed of a plurality of OFDM symbols (Symbol) in the time domain. The resource block is a resource allocation unit, and is composed of a plurality of OFDM symbols and a plurality of sub-carriers. In addition, each subframe may use specific subcarriers of specific OFDM symbols (eg, the first OFDM symbol) of a corresponding subframe for a physical downlink control channel (PDCCH), that is, an L1/L2 control channel. TTI (Transmission Time Interval) is a unit time of subframe transmission.

Hereinafter, a new radio access technology (new radio access technology: new RAT, NR) will be described.

As more communication devices require a larger communication capacity, there is a need for improved mobile broadband communication compared to a conventional radio access technology (RAT). Massive Machine Type Communications (MTC), which provides a variety of services anytime, anywhere by connecting multiple devices and objects, is also one of the major issues to be considered in next-generation communication. In addition, a communication system design considering a service/terminal sensitive to reliability and latency is being discussed. The introduction of next-generation wireless access technology in consideration of such extended mobile broadband communication, massive MTC, and Ultra-Reliable and Low Latency Communication (URLLC) is discussed, and in this specification, for convenience, the technology is applied. Is called new RAT or NR.

4 illustrates a system structure of a New Generation Radio Access Network (NG-RAN) to which NR is applied.

Referring to FIG. 4, the NG-RAN may include a gNB and/or eNB that provides a user plane and control plane protocol termination to a terminal. 4 illustrates a case in which only the gNB is included. The gNB and the eNB are connected to each other by an Xn interface. The gNB and the eNB are connected through a 5G Core Network (5GC) and an NG interface. More specifically, AMF (access and mobility management function) is connected through an NG-C interface, and UPF (user plane function) is connected through an NG-U interface.

5 illustrates functional division between NG-RAN and 5GC.

Referring to Figure 5, gNB is an inter-cell radio resource management (Inter Cell RRM), radio bearer management (RB control), connection mobility control (Connection Mobility Control), radio admission control (Radio Admission Control), measurement settings and provision Functions such as (Measurement configuration & Provision) and dynamic resource allocation can be provided. AMF can provide functions such as NAS security and idle state mobility processing. UPF may provide functions such as mobility anchoring and PDU processing. The Session Management Function (SMF) can provide functions such as terminal IP address allocation and PDU session control.

6 illustrates a frame structure that can be applied in NR.

Referring to FIG. 6, a frame may be composed of 10 milliseconds (ms), and may include 10 subframes composed of 1 ms.

One or a plurality of slots may be included in a subframe according to subcarrier spacing.

Table 1 below illustrates the subcarrier spacing configuration μ.

[Table 1]

The following Table 2 illustrates the number of slots in a frame (N ^frameμ _slot ), the number of slots in a ^subframe (N ^subframeμ _slot ), the number of symbols in a ^slot (N ^slot _symb ), etc. according to the subcarrier spacing configuration μ .

μ	N slot symb	N frame, μ slot	N subframe, μ slot
0	14	10	One
One	14	20	2
2	14	40	4
3	14	80	8
4	14	160	16

In FIG. 6, µ=0, 1, and 2 are illustrated.

A physical downlink control channel (PDCCH) may be composed of one or more control channel elements (CCEs) as shown in Table 3 below.

Aggregation level	Number of CCEs
One	One
2	2
4	4
8	8
16	16

That is, the PDCCH may be transmitted through a resource composed of 1, 2, 4, 8 or 16 CCEs. Here, CCE is composed of six resource element groups (REGs), and one REG is composed of one resource block in the frequency domain and one orthogonal frequency division multiplexing (OFDM) symbol in the time domain. Meanwhile, in NR, a new unit called a control resource set (CORESET) can be introduced. The terminal may receive the PDCCH in CORESET.

7 illustrates CORESET.

Referring to FIG. 7, CORESET is composed of N ^CORESET _RB resource blocks in the frequency domain and N ^CORESET _symb ∈ {1, 2, 3} symbols in the time domain. N ^CORESET _RB and N ^CORESET _symb may be provided by a base station through a higher layer signal. As illustrated in FIG. 7, a plurality of CCEs (or REGs) may be included in CORESET.

The UE may attempt to detect PDCCH in units of 1, 2, 4, 8 or 16 CCEs in CORESET. One or a plurality of CCEs that may attempt PDCCH detection may be referred to as PDCCH candidates.

The terminal may receive a plurality of CORESETs.

8 is a view showing a difference between a conventional control region and CORESET in NR.

Referring to FIG. 8, a control area 800 in a conventional wireless communication system (eg, LTE/LTE-A) is configured over the entire system band used by a base station. All terminals, except for some terminals (for example, eMTC/NB-IoT terminals) supporting only a narrow band, receive radio signals in the entire system band of the base station in order to properly receive/decode control information transmitted by the base station. I should be able to.

On the other hand, in NR, the above-mentioned CORESET was introduced. CORESET (801, 802, 803) may be referred to as a radio resource for control information that the terminal should receive, and may use only a part of the entire system band. The base station can allocate CORESET to each terminal, and can transmit control information through the assigned CORESET. For example, in FIG. 8, the first CORESET 801 may be allocated to the terminal 1, the second CORESET 802 may be allocated to the second terminal, and the third CORESET 803 may be allocated to the terminal 3. The terminal in the NR can receive control information of the base station even if it does not necessarily receive the entire system band.

In the CORESET, there may be a terminal-specific CORESET for transmitting terminal-specific control information and a common CORESET for transmitting control information common to all terminals.

Meanwhile, in the NR, high reliability may be required depending on an application field, and DCI (downlink control information) transmitted through a downlink control channel (eg, a physical downlink control channel: PDCCH) in such a situation. The target block error rate (BLER) for) may be significantly lower than in the prior art. As an example of a method for satisfying such a requirement that requires high reliability, the amount of content included in DCI may be reduced, and/or the amount of resources used for DCI transmission may be increased. . At this time, the resource may include at least one of a resource in the time domain, a resource in the frequency domain, a resource in the code domain, and a resource in the spatial domain.

The following technologies/features can be applied in NR.

<Self-contained subframe structure>

9 shows an example of a frame structure for a new radio access technology.

In NR, a structure in which a control channel and a data channel are time-division multiplexed (TDM) within one TTI is considered as one of the frame structures for the purpose of minimizing latency. Can be.

In FIG. 9, the hatched area indicates a downlink control area, and the black part indicates an uplink control area. An area without an indication may be used for downlink data (DL data) transmission, or may be used for uplink data (UL data) transmission. The characteristic of this structure is that downlink (DL) transmission and uplink (UL) transmission are sequentially performed in one subframe, DL data is transmitted in a subframe, and UL ACK/ NACK (Acknowledgement/Not-acknowledgement) is also available. As a result, when a data transmission error occurs, it takes less time to retransmit the data, thereby minimizing the latency of the final data transmission.

In this data and control TDM subframe structure (data and control TDMed subframe structure), the base station and the terminal type gap for the process of switching from the transmission mode to the reception mode or the process of switching from the reception mode to the transmission mode (time gap) ) Is required. To this end, in the self-contained subframe structure, some OFDM symbols at the time of switching from DL to UL may be set as a guard period (GP).

<Analog beamforming #1>

In a millimeter wave (mmW), the wavelength is shortened, so that it is possible to install multiple antenna elements in the same area. That is, in the 30 GHz band, the wavelength is 1 cm, and it is possible to install a total of 100 antenna elements in a 2-dimensional arrangement at 0.5 wavelength intervals on a 5 by 5 cm panel. Therefore, in mmW, a plurality of antenna elements are used to increase beamforming (BF) gain to increase coverage or increase throughput.

In this case, having a Transceiver Unit (TXRU) to control transmission power and phase for each antenna element enables independent beamforming for each frequency resource. However, in order to install the TXRU on all of the 100 or more antenna elements, it has a problem of ineffectiveness in terms of price. Therefore, a method of mapping a plurality of antenna elements to one TXRU and adjusting a beam direction with an analog phase shifter is considered. This analog beamforming method has a disadvantage in that it can make only one beam direction in all bands and thus cannot perform frequency selective beamforming.

It is possible to consider hybrid beamforming (BB) having B TXRUs, which are fewer than Q antenna elements, as an intermediate form of digital beamforming (analog BF) and digital beamforming (analog BF). In this case, although there are differences depending on the connection scheme of the B TXRUs and Q antenna elements, the direction of beams that can be simultaneously transmitted is limited to B or less.

<Analog beamforming #2>

In the NR system, when a plurality of antennas are used, a hybrid beamforming technique combining digital beamforming and analog beamforming is emerging. At this time, analog beamforming (or RF beamforming) performs precoding (or combining) at the RF stage, which results in the number of RF chains and the number of D/A (or A/D) converters. It has the advantage of being able to achieve performance that is close to digital beamforming while reducing. For convenience, the hybrid beamforming structure may be represented by N TXRUs and M physical antennas. Then, the digital beamforming for the L data layers to be transmitted by the transmitting end can be represented by an N by L matrix, and the converted N digital signals are then converted into analog signals through TXRU. After conversion, analog beamforming represented by an M by N matrix is applied.

10 is an abstract diagram of a hybrid beamforming structure from the perspective of the TXRU and the physical antenna.

In FIG. 10, the number of digital beams is L, and the number of analog beams is N. Furthermore, in the NR system, the base station is designed to change the analog beamforming on a symbol-by-symbol basis, and considers a direction for supporting more efficient beamforming to a terminal located in a specific region. Further, when defining a specific N TXRU and M RF antennas as one antenna panel in FIG. 10, the NR system considers a method of introducing a plurality of antenna panels to which hybrid beamforming independent of each other is applicable. Is becoming.

When the base station utilizes a plurality of analog beams as described above, since an analog beam advantageous for signal reception may be different for each terminal, at least a specific subframe for a synchronization signal, system information, paging, and the like. Beam sweeping operation is being considered in which a plurality of analog beams to be applied by a base station is changed for each symbol so that all terminals have a reception opportunity.

11 is a diagram illustrating the beam sweeping operation for a synchronization signal and system information in a downlink (DL) transmission process.

In FIG. 11, a physical resource (or physical channel) in which system information of an NR system is transmitted in a broadcasting method is designated as a physical broadcast channel (xPBCH). At this time, analog beams belonging to different antenna panels within one symbol can be simultaneously transmitted, and a single analog beam (corresponding to a specific antenna panel) is applied as illustrated in FIG. 11 to measure channels for each analog beam. A method of introducing a beam reference signal (Beam RS: BRS), which is a reference signal (RS) to be transmitted, is being discussed. The BRS may be defined for a plurality of antenna ports, and each antenna port of the BRS may correspond to a single analog beam. At this time, unlike the BRS, a synchronization signal or xPBCH can be transmitted by applying all analog beams in an analog beam group so that any UE can receive it well.

12 shows an example of a 5G usage scenario to which the technical features of the present specification can be applied. The 5G usage scenario illustrated in FIG. 12 is merely exemplary, and the technical features of the present specification may be applied to other 5G usage scenarios not illustrated in FIG. 12.

Referring to FIG. 12, the three main requirements areas of 5G are (1) an enhanced mobile broadband (eMBB) area, (2) a large amount of machine type communication (mMTC) area, and ( 3) Ultra-reliable and low latency communications (URLLC) area. Some use cases may require multiple areas for optimization, and other use cases may focus on only one key performance indicator (KPI). 5G is a flexible and reliable way to support these various use cases.

eMBB focuses on improving overall data rate, latency, user density, capacity and coverage of mobile broadband access. eMBB targets throughput of about 10 Gbps. eMBB goes far beyond basic mobile Internet access and covers media and entertainment applications in rich interactive work, cloud or augmented reality. Data is one of the key drivers of 5G, and for the first time in the 5G era, dedicated voice services may not be seen. In 5G, voice is expected to be processed as an application simply using the data connection provided by the communication system. The main causes of increased traffic volume are increased content size and increased number of applications requiring high data rates. Streaming services (audio and video), interactive video and mobile internet connections will become more widely used as more devices connect to the internet. Many of these applications require always-on connectivity to push real-time information and notifications to users. Cloud storage and applications are rapidly increasing in mobile communication platforms, which can be applied to both work and entertainment. Cloud storage is a special use case that drives the growth of uplink data rates. 5G is also used for remote work on the cloud and requires much lower end-to-end delay to maintain a good user experience when a tactile interface is used. In entertainment, for example, cloud gaming and video streaming are another key factor in increasing demand for mobile broadband capabilities. Entertainment is essential on smartphones and tablets anywhere, including in high mobility environments such as trains, cars and airplanes. Another use case is augmented reality and information retrieval for entertainment. Here, augmented reality requires a very low delay and an instantaneous amount of data.

mMTC is designed to enable communication between large amounts of low-cost devices powered by batteries, and is intended to support applications such as smart metering, logistics, field and body sensors. mMTC targets 10 years of battery and/or 1 million devices per km2. mMTC enables seamless connection of embedded sensors in all fields and is one of the most anticipated 5G use cases. Potentially, by 2020, the number of IoT devices is expected to reach 20 billion. Industrial IoT is one of the areas where 5G plays a major role in enabling smart cities, asset tracking, smart utilities, agriculture and security infrastructure.

URLLC is ideal for vehicle communication, industrial control, factory automation, telesurgery, smart grid and public safety applications by allowing devices and machines to communicate with high reliability and very low latency and high availability. URLLC aims for a delay of about 1ms. URLLC includes new services that will transform the industry through ultra-reliable/low-latency links such as remote control of key infrastructure and autonomous vehicles. Reliability and level of delay are essential for smart grid control, industrial automation, robotics, drone control and coordination.

Next, the use cases included in the triangle of FIG. 12 will be described in more detail.

5G can complement fiber-to-the-home (FTTH) and cable-based broadband (or DOCSIS) as a means to provide streams rated at hundreds of megabits per second to gigabit per second. Such fast speeds may be required to deliver TV in 4K (6K, 8K and higher) resolutions as well as virtual reality (VR) and augmented reality (AR). VR and AR applications include almost immersive sports events. Certain applications may require special network settings. For VR games, for example, game companies may need to integrate the core server with the network operator's edge network server to minimize latency.

Automotive is expected to be an important new driver for 5G, with many examples of use for mobile communications to vehicles. For example, entertainment for passengers simultaneously requires high capacity and high mobile broadband. The reason is that future users continue to expect high quality connections regardless of their location and speed. Another example of use in the automotive field is the augmented reality dashboard. The augmented reality contrast board allows the driver to identify objects in the dark over what is being viewed through the front window. The augmented reality dashboard superimposes information to inform the driver about the distance and movement of objects. In the future, wireless modules will enable communication between vehicles, exchange of information between the vehicle and the supporting infrastructure, and exchange of information between the vehicle and other connected devices (eg, devices carried by pedestrians). The safety system helps the driver reduce the risk of accidents by guiding alternative courses of action to make driving safer. The next step will be a remotely controlled vehicle or an autonomous vehicle. This requires very reliable and very fast communication between different autonomous vehicles and/or between the vehicle and the infrastructure. In the future, autonomous vehicles will perform all driving activities, and drivers will focus only on traffic beyond which the vehicle itself cannot identify. The technical requirements of autonomous vehicles require ultra-low delay and ultra-high-speed reliability to increase traffic safety to a level that cannot be achieved by humans.

Smart cities and smart homes, referred to as smart societies, will be embedded in high-density wireless sensor networks. The distributed network of intelligent sensors will identify the conditions for cost and energy efficient maintenance of a city or home. Similar settings can be made for each assumption. Temperature sensors, window and heating controllers, burglar alarms and consumer electronics are all connected wirelessly. Many of these sensors typically require low data rates, low power and low cost. However, for example, real-time HD video may be required in certain types of devices for surveillance.

The consumption and distribution of energy, including heat or gas, is highly decentralized, requiring automated control of a distributed sensor network. The smart grid interconnects these sensors using digital information and communication technologies to collect information and act accordingly. This information can include supplier and consumer behavior, so smart grids can improve efficiency, reliability, economics, production sustainability and the distribution of fuels like electricity in an automated way. The smart grid can be viewed as another sensor network with low latency.

The health sector has many applications that can benefit from mobile communications. The communication system can support telemedicine that provides clinical care from a distance. This helps to reduce barriers to distance and can improve access to medical services that are not continuously available in remote rural areas. It is also used to save lives in critical care and emergency situations. A wireless sensor network based on mobile communication can provide remote monitoring and sensors for parameters such as heart rate and blood pressure.

Wireless and mobile communications are becoming increasingly important in industrial applications. Wiring is expensive to install and maintain. Thus, the possibility of replacing the cable with a wireless link that can be reconfigured is an attractive opportunity in many industries. However, achieving this requires that the wireless connection operates with cable-like delay, reliability, and capacity, and that management is simplified. Low latency and very low error probability are new requirements that need to be connected to 5G.

Logistics and cargo tracking is an important use case for mobile communications that enables the tracking of inventory and packages from anywhere using location-based information systems. Logistics and cargo tracking use cases typically require low data rates, but require wide range and reliable location information.

Hereinafter, DRX (Discontinuous Reception) will be described.

Discontinuous reception (DRX) refers to an operation mode in which a user equipment (UE) reduces battery consumption so that a UE can discontinuously receive a downlink channel. That is, a UE configured as DRX can reduce power consumption by discontinuously receiving a downlink signal.

The DRX operation is performed within a DRX cycle indicating a time interval in which On Duration is periodically repeated. The DRX cycle includes on duration and sleep duration (or DRX opportunity). On duration indicates the time interval during which the UE monitors the PDCCH to receive the PDCCH.

DRX may be performed in a Radio Resource Control (RRC)_IDLE state (or mode), RRC_INACTIVE state (or mode), or RRC_CONNECTED state (or mode). In the RRC_IDLE state and the RRC_INACTIVE state, DRX can be used to discontinuously receive the paging signal.

-RRC_IDLE state: a state in which a radio connection (RRC connection) between the base station and the UE is not established (established).

-RRC_INACTIVE state: a radio connection (RRC connection) is established between the base station and the UE, but the radio connection is deactivated.

-RRC_CONNECTED state: A state in which a radio connection (RRC connection) is established between the base station and the UE.

DRX can be basically divided into an idle mode DRX, a connected DRX (C-DRX), and an extended DRX.

DRX applied in the IDLE state may be referred to as an idle mode DRX, and DRX applied in a CONNECTED state may be referred to as a connected mode DRX (C-DRX).

eDRX (Extended/Enhanced DRX) is a mechanism that can extend the cycle of idle mode DRX and C-DRX, and eDRX (Extended/Enhanced DRX) can be mainly used for the application of (massive) IoT. In idle mode DRX, whether to allow eDRX may be set based on system information (eg, SIB1). SIB1 may include an eDRX-allowed parameter. The eDRX-allowed parameter is a parameter indicating whether idle mode extended DRX is allowed.

Hereinafter, the idle mode DRX will be described.

In the idle mode, the UE can use DRX to reduce power consumption. One paging occasion (paging occasion; PO) is a PDCCH (Physical Downlink Control Channel) or a PDCCH (MTC PDCCH) in which a Paging-Radio Network Temporary Identifier (P-RNTI) addresses a paging message for NB-IoT. ) Or a subframe that can be transmitted through a narrowband PDCCH (NPDCCH).

In the P-RNTI transmitted through the MPDCCH, PO may indicate a start subframe of MPDCCH repetition. In the case of the P-RNTI transmitted through the NPDCCH, if the subframe determined by the PO is not a valid NB-IoT downlink subframe, the PO may indicate the start subframe of the NPDCCH repetition. Therefore, the first valid NB-IoT downlink subframe after PO is the start subframe of NPDCCH repetition.

One paging frame (PF) is one radio frame that may include one or more paging opportunities. When DRX is used, the UE only needs to monitor one PO per DRX cycle. One paging narrow band (PNB) is one narrow band in which the UE performs paging message reception. PF, PO and PNB may be determined based on DRX parameters provided in system information.

13 is a flowchart illustrating an example of performing an idle mode DRX operation.

According to FIG. 13, the terminal may receive idle mode DRX configuration information from the base station through higher layer signaling (eg, system information) (S1310 ).

The UE may determine a Paging Frame (PF) and a Paging Occasion (PO) to monitor the PDCCH in the paging DRX cycle based on the idle mode DRX configuration information (S1320). In this case, the DRX cycle may include on duration and sleep duration (or chance of DRX).

The UE may monitor the PDCCH in the PO of the determined PF (S1330). Here, for example, the UE monitors only one subframe (PO) per paging DRX cycle. In addition, when the UE receives a PDCCH scrambled by P-RNTI during on-duration (that is, when paging is detected), the UE transitions to a connection mode and can transmit and receive data with the base station.

14 schematically illustrates an example of an idle mode DRX operation.

According to FIG. 14, when there is traffic directed to a terminal in the RRC_IDLE state (hereinafter referred to as an “idle state”), paging for the terminal occurs. The UE may monitor the PDCCH by waking up periodically (ie, every (paging) DRX cycle). If there is no paging, the terminal transitions to the connected state, receives data, and if data does not exist, may enter the sleep mode again.

Hereinafter, a connected mode DRX (C-DRX) will be described.

C-DRX means DRX applied in an RRC connected state. The DRX cycle of C-DRX may consist of a short DRX cycle and/or a long DRX cycle. Here, a short DRX cycle may be an option.

When C-DRX is set, the UE may perform PDCCH monitoring for on duration. If the PDCCH is successfully detected during the PDCCH monitoring, the UE may operate (or run) an inactive timer and maintain an awake state. Conversely, if the PDCCH is not successfully detected during the PDCCH monitoring, the terminal may enter a sleep state after the on duration is over.

When C-DRX is set, a PDCCH reception opportunity (eg, a slot having a PDCCH search space) may be set discontinuously based on the C-DRX setting. In contrast, if C-DRX is not set, a PDCCH reception opportunity (eg, a slot having a PDCCH search space) may be continuously set herein.

Meanwhile, PDCCH monitoring may be limited to a time interval set as a measurement gap regardless of C-DRX setting.

15 is a flowchart showing an example of a method for performing a C-DRX operation.

The UE may receive RRC signaling (eg, MAC-MainConfig IE) including DRX configuration information from the base station (S1510).

Here, the DRX configuration information may include the following information.

-onDurationTimer: The number of PDCCH subframes that can be continuously monitored at the beginning of the DRX cycle

-drx-InactivityTimer: The number of PDCCH subframes that can be continuously monitored when the UE decodes the PDCCH with scheduling information

-drx-RetransmissionTimer: The number of PDCCH subframes to be continuously monitored when HARQ retransmission is expected

-longDRX-Cycle: duration of on-duration

-drxStartOffset: Subframe number where DRX cycle starts

-drxShortCycleTimer: short DRX cycle number

-shortDRX-Cycle: DRX cycle that works as many as drxShortCycleTimer when Drx-InactivityTimer ends

In addition, when DRX'ON' is set through the DRX command of the MAC CE (command element) (S1520), the UE monitors the PDCCH for the ON duration of the DRX cycle based on the DRX setting (S1530).

16 schematically illustrates an example of C-DRX operation.

When the UE receives scheduling information (eg, DL Grant) in the RRC_CONNECTED state (hereinafter, referred to as a connection state), the UE may execute a DRX inactive timer and an RRC inactive timer.

When the DRX inactive timer expires, the DRX mode may be started. The UE wakes up from the DRX cycle and can monitor the PDCCH for a predetermined time (on a duration timer).

In this case, when a short DRX is set, when the UE starts the DRX mode, the UE first starts with a short DRX cycle, and after the short DRX cycle ends, starts with a long DRX cycle. Here, the long DRX cycle may correspond to a multiple of the short DRX cycle. In addition, in a short DRX cycle, the terminal may wake up more frequently. After the RRC inactive timer expires, the terminal may switch to the IDLE state and perform the IDLE mode DRX operation.

Hereinafter, a discussion related to power saving will be described.

The battery life of the terminal is a factor in the user experience affecting the adoption of 5G handsets and/or services. The power efficiency for 5G NR terminals is not at least worse than LTE, and a study of terminal power consumption can be provided for techniques and designs for improvement to be identified and applied.

ITU-R defines energy efficiency as one of the minimum technical performance requirements of the IMT-2020. According to the ITU-R report, the minimum requirements related to the technical performance of the IMT-2020 air interface, “The energy efficiency of the device can be related to support for two aspects: a) Efficient under load. Data transfer, b) low energy consumption when there is no data. Efficient data transmission in the load case is demonstrated with average spectral efficiency. In the absence of data, low energy consumption can be estimated by the slip ratio.

Since the NR system can support high-speed data transmission, user data is expected to burst and tend to be serviced for a very short period of time. One efficient terminal power saving mechanism is to trigger a terminal for network access from a power efficiency mode. Unless there is information on network access through the terminal power saving framework, the terminal maintains a power efficiency mode such as a micro-slip or OFF period within a long DRX cycle. Instead, when there is no traffic to transmit, the network may support the terminal to switch from the network connection mode to the power saving mode (for example, dynamic terminal switching to sleep with a network support signal).

In addition to minimizing power consumption with a new wake-up/go-to-sleep mechanism, reducing power consumption during network access in RRC_CONNECTED mode may also be provided. More than half of the power consumption in LTE is a terminal in a connected mode. The power saving technique should focus on minimizing the major elements of power consumption during network access, including processing of aggregated bandwidth, dynamic RF chain count and dynamic transmit/receive time and dynamic transition to power efficiency mode. Since most of the LTE field TTIs have no or little data, power saving techniques for dynamic adaptation to different data arrivals should be studied in RRC-CONNECTED mode. Dynamic adaptation to various dimensions of traffic such as carrier, antenna, beamforming and bandwidth can also be studied. Furthermore, you should consider how to enhance the transition between network access mode and power saving mode. Both network-assisted and terminal-assisted access should be considered for terminal power saving mechanisms.

The terminal also consumes a lot of power for RRM measurement. In particular, the terminal must turn on the power before the DRX ON period for tracking the channel in preparation for RRM measurement. Some of the RRM measurements are not essential, but consume a lot of terminal power. For example, low mobility terminals need not measure as frequently as high mobility terminals. The network may provide signaling to reduce power consumption for unnecessary RRM measurement by the terminal. Additional terminal support, e.g. terminal status information, is also useful for enabling the network to reduce terminal power consumption for RRM measurements.

Accordingly, research is needed to identify feasibility and advantages of a technology that enables a terminal capable of operating while reducing power consumption.

Hereinafter, UE power saving schemes will be described.

For example, terminal power saving techniques include terminal adaptation to traffic and power consumption characteristics, adaptation to frequency changes, adaptation to time changes, adaptation to antennas, adaptation to DRX settings, and terminal processing capabilities. Adaptation, adaptation to obtain PDCCH monitoring/decoding reduction, power saving signal/channel/procedure for triggering terminal power consumption adaptation, power consumption reduction in RRM measurement may be considered.

With respect to adaptation to DRX configuration, a downlink shared channel (DL-SCH) characterized by support for terminal discontinuous reception (DRX) for enabling terminal power saving, a terminal enabling terminal power saving A paging channel (PCH) characterized by support for DRX (where a DRX cycle can be indicated to the terminal by the network) and the like can be considered.

With regard to adaptation to terminal processing capabilities, the following techniques can be considered. When the network requests, the terminal reports at least its own terminal wireless access capability. The gNB may request the capability of the terminal to report based on band information. If allowed by the network, a temporary capability limitation request can be sent by the terminal to signal the limited availability of some capabilities (due to dPfmf, for example hardware sharing, interference or overheating) to the gNB. The gNB may then confirm or reject the request. Temporary capability limits should be transparent to 5GC. That is, only static functions are stored in 5GC.

With regard to adaptation to obtain PDCCH monitoring/decoding reduction, the following techniques can be considered. The UE monitors the PDCCH candidate set in a monitoring occasion set in one or more set CORESET according to the corresponding search space setting. CORESET consists of a set of PRBs with a time interval of 1 to 3 OFDM symbols. Resource units REG and CCE are defined in CORESET, and each CCE is composed of a set of REGs. The control channel is formed of a set of CCEs. Different code rates for the control channel are implemented by aggregating different numbers of CCEs. Interleaved and non-interleaved CCE-REG mapping is supported in CORESET.

With regard to the power saving signal/channel/procedure for triggering terminal power consumption adaptation, the following technique may be considered. In order to enable rational terminal battery consumption when carrier aggregation (CA) is established, a cell activation/deactivation mechanism is supported. When one cell is deactivated, the UE does not need to receive the corresponding PDCCH or PDSCH, cannot perform the corresponding uplink transmission, and does not need to perform CQI (channel quality indicator) measurement. Conversely, when one cell is activated, the UE should receive PDCH and PDCCH (if the UE is configured to monitor the PDCCH from these SCells) and is expected to be able to perform CQI measurement. The NG-RAN prevents the activation of the SCell of the secondary PUCCH group (the group of SCells in which PUCCH signaling is associated with the PUCCH of the PUCCH SCell) while the PUCCH SCell (the secondary cell composed of PUCCH) is deactivated. NG-RAN causes the SCell mapped to the PUCCH SCell to be deactivated before the PUCCH SCell is changed or removed.

When reset without mobility control information, SCells added to the set of serving cells are initially deactivated, and SCells remaining in the set of serving cells (unchanged or reset) do not change the activation state (active or inactive). .

When reconstructing with mobility control information (eg handover), SCells are deactivated.

In order to enable reasonable battery consumption when BA (bandwidth adaptation) is set, only one uplink BWP and one downlink BWP or only one downlink/uplink BWP pair for each uplink carrier is active serving It can be activated at once in the cell, and all other BWPs set in the terminal are deactivated. In the deactivated BWPs, the UE does not monitor the PDCCH and does not transmit on PUCCH, PRACH and UL-SCH.

For BA, the receiving and transmitting bandwidth of the terminal need not be as wide as the bandwidth of the cell and can be adjusted: the width can be commanded to be changed (eg, period of low activity to save power) During contraction), the position in the frequency domain can move (eg, to increase scheduling flexibility), and the subcarrier spacing can be commanded to change (eg, to allow different services). A subset of the total cell bandwidth of a cell is referred to as a bandwidth part (BWP), and BA is obtained by setting the BWP(s) to the terminal and notifying that the terminal is currently active among the BWPs set. When BA is set, the UE only needs to monitor the PDCCH on one active BWP. That is, there is no need to monitor the PDCCH on the entire downlink frequency of the cell. The BWP Inactive Timer (independent of the DRX Inactive Timer described above) is used to switch the active BWP to the default BWP: the timer restarts upon successful PDCCH decoding, and when the timer expires, switching to the default BWP occurs do.

17 illustrates a scenario in which three different bandwidth parts are set.

17 shows an example in which BWP ₁ , BWP ₂ and BWP ₃ are set on a time-frequency resource. BWP ₁ may have a width of 40 MHz and a subcarrier spacing of 15 kHz, BWP ₂ may have a width of 10 MHz and a subcarrier spacing of 15 kHz, and BWP ₃ may have a width of 20 MHz and a subcarrier spacing of 60 kHz. In other words, each of the bandwidth parts may have a different width and/or a different subcarrier spacing.

With regard to the reduction of power consumption in RRM measurement, the following technique can be considered. If two measurement types are possible, the RRM setup includes beam measurement information related to SSB(s) (for layer 3 mobility) and CSI-RS(s) for reported cell(s). can do. In addition, when CA is set, the RRM setting may include a list of the best cells on each frequency where measurement information is available. In addition, the RRM measurement information may include beam measurement for listed cells belonging to the target gNB.

The following technology can be used for various radio access systems such as CDMA, FDMA, TDMA, OFDMA, SC-FDMA, and the like. CDMA may be implemented with a radio technology such as Universal Terrestrial Radio Access (UTRA) or CDMA2000. TDMA may be implemented with wireless technologies such as Global System for Mobile communications (GSM)/General Packet Radio Service (GPRS)/Enhanced Data Rates for GSM Evolution (EDGE). OFDMA may be implemented with wireless technologies such as IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802-20, and Evolved UTRA (E-UTRA). UTRA is part of the Universal Mobile Telecommunications System (UMTS). 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) is part of Evolved UMTS (E-UMTS) using E-UTRA, and LTE-A (Advanced)/LTE-A pro is an evolved version of 3GPP LTE. 3GPP NR (New Radio or New Radio Access Technology) is an evolved version of 3GPP LTE/LTE-A/LTE-A pro.

For clarity, the description is based on a 3GPP communication system (eg, LTE-A, NR), but the technical spirit of the present specification is not limited thereto. LTE means 3GPP TS 36.xxx Release 8 or later technology. Specifically, LTE technology after 3GPP TS 36.xxx Release 10 is called LTE-A, and LTE technology after 3GPP TS 36.xxx Release 13 is called LTE-A pro. 3GPP NR refers to the technology after TS 38.xxx Release 15. LTE/NR may be referred to as a 3GPP system. "xxx" means standard document detail number. LTE/NR may be collectively referred to as a 3GPP system. Background art, terms, abbreviations, and the like used in the description of the present specification may refer to matters described in the standard documents disclosed before the present specification. For example, you can refer to the following documents.

3GPP LTE

-36.211: Physical channels and modulation

-36.212: Multiplexing and channel coding

-36.213: Physical layer procedures

-36.300: Overall description

-36.331: Radio Resource Control (RRC)

3GPP NR

-38.211: Physical channels and modulation

-38.212: Multiplexing and channel coding

-38.213: Physical layer procedures for control

-38.214: Physical layer procedures for data

-38.300: NR and NG-RAN Overall Description

-38.331: Radio Resource Control (RRC) protocol specification

Hereinafter, the proposal of the present specification will be described in more detail.

Current NR system (system) does not introduce a reference signal (eg, CRS (Cell-specific Reference Signal) in LTE) that is always transmitted to increase the flexibility of the system (eg, the actual signal (signal)) It is defined to use a DMRS (demodulation reference signal) that is mapped only when it is transmitted.

This may be effective as a method for increasing the flexibility of the system, but may have a disadvantage in that stability is reduced in terms of power saving through frequent sleep operations.

For example, if the terminal operates in a long-time sleep (eg, a section in which a receiving operation is not performed) mode, or when the variance of a channel is greatly increased by moving at a high speed, It may happen that automatic gain control (AGC) cannot be effectively performed, and a method is needed to solve this.

Additional advantages, objects, and features of the specification will be described in part in the following description, and will become apparent to those skilled in the art from the practice of the specification when reviewing the following. The objects and other advantages of this specification can be realized and attained by the structure particularly pointed out in the appended drawings as well as the claims and claims herein.

According to the NR system design to date, system flexibility (eg, flexible change of uplink/downlink, control/data in the time domain) For flexible allocation of data), always-on signals such as CRS of LTE are not introduced. This has the advantage of ensuring system flexibility, but can act as an element that hinders the smooth operation of the system.

For example, the terminal may increase the time to operate in the sleep mode that does not perform the Tx/Rx operation for the purpose of power saving, etc. For automatic operation of the sleep mode and the active mode, AGC (automatic gain control) )need.

Here, AGC refers to an operation of adjusting the strength of the received signal and the signal strength required for processing inside the terminal in the process of amplifying the received signal for processing of the terminal.

When the AGC is not performed, when a signal having a high signal strength is received, the output signal of the amplifier may saturate beyond the linear amplified region of the amplifier. When a signal is received, a problem that reception performance is reduced may occur. When performing the AGC, the terminal may measure the overall strength of the signal received in the current situation, and adjust the signal strength to suit the processing inside the terminal.

Since there is always CRS transmitted in the LTE system, there may be no problem in performing AGC. However, in the NR system, CRS does not exist, and a synchronization (sync.) signal and PBCH, which are always transmitted, may be inefficient because a transmission period may not coincide with a section performing AGC.

18 schematically shows an example of an area in which the terminal performs AGC.

According to FIG. 18, the terminal may perform the Tx/Rx operation in the active area, and may not perform the Tx/Rx operation in the sleep area. In the example of the drawing, the sleep mode is started at point A and the active mode is started again at point B.

At this time, if the sleep mode is long, it is necessary to perform the AGC operation for the active mode starting at point B, and sync is always transmitted. When the signal/PBCH, etc. are in the middle of the sleep mode, the UE must additionally operate in the active mode at the time when the sync/PBCH between A and B is transmitted to perform the AGC operation, which may cause unnecessary power consumption. have. (That is, in order to operate in the active mode, an additional warm up time for the corresponding mode may be required, which may cause unnecessary power consumption.)

In order to reduce such unnecessary power consumption, an area (for example, area C in the drawing) in which the UE can stably perform the AGC operation in the vicinity of the point of time from the transition from sleep to active may be required.

CSI-RS configuration may be considered as one of the methods to implement this, but it is preferable to avoid it because it may reduce the flexibility of the system.

For reference, since the AGC operation can operate based on the strength of the received signal, it need not be a known signal like a reference signal.

In this specification, it is proposed to introduce an always-on signal to solve the above problems.

Here, the always-on signal may be interpreted as meaning that a network guarantees signal transmission in a corresponding area, and the signal may include not only a signal transmitted to the UE but also a signal transmitted to other UEs. have.

In addition, the signal may be a signal known as a reference signal, or may be an unknown signal transmitted to an arbitrary UE. That is, the network can always inform the UE of a region in which a signal exists through UE-specific signaling or cell-specific signaling, and the UE that has received the corresponding signaling AGC may be performed using a resource region indicated by signaling.

On the other hand, the network may inform whether or not the always on signal through terminal specific signaling or cell (group)-specific signaling, and the following configuration (configuration) information may be included in the corresponding signaling.

If the contents of this specification are described from the viewpoint of the terminal, it may be as follows. The following drawings have been prepared to explain specific examples of the present specification. Since the names of specific devices or specific signal/message/field names described in the drawings are provided by way of example, the technical features of the present specification are not limited to the specific names used in the following drawings.

19 is a flowchart of a method for a terminal to receive configuration information related to an always-on signal according to an example of the present specification.

According to FIG. 19, the terminal may receive configuration information related to the always-on signal from the base station (S1910). Here, a specific example of the setting information received by the terminal will be described later.

The terminal may perform wireless communication based on the setting information (S1920). Here, the wireless communication may mean wireless communication based on NR. Alternatively, the wireless communication may mean wireless communication based on LTE.

When the terminal performs wireless communication based on the setting information, it may mean that the UE receiving the always on signal setting performs the AGC operation based on the information.

Each step in FIG. 19 may be performed by a processor of the terminal. Specifically, each step may be performed by the processor of the terminal in the drawings to be described later. In addition, the physical signal by each step may be transmitted/received by the transceiver of the terminal under the control of the processor. Control information, data, etc. transmitted through the PDCCH and PDSCH may be processed by the processor of the terminal. For physical layer signal transmission/reception, the processor may include a configuration as illustrated in the following description.

Hereinafter, a configuration in which a terminal receives setting information related to an always-on signal from a base station through the drawing will be described through the drawing. The following drawings have been prepared to explain specific examples of the present specification. Since the names of specific devices or specific signal/message/field names described in the drawings are provided by way of example, the technical features of the present specification are not limited to the specific names used in the following drawings.

Here, for convenience of description, the terms'setting information','setting', and'normal on signal setting (normal on signal setting)' may be used interchangeably.

20 is a flowchart of a method of receiving configuration information for an always-on signal according to an embodiment of the present specification.

According to FIG. 20, the terminal may receive DRX (Discontinuous Reception) configuration information and/or configuration information for an always on signal from a network (e.g. base station) (S2010). Here, DRX (Discontinuous Reception) configuration information and / or always on signal (always on signal) configuration information may be received through higher layer signaling (e.g. RRC signaling, MAC signaling, etc.).

An example of DRX configuration information (or parameters) that the UE receives from the base station may be as follows. At this time, the following DRX configuration information (or parameter) may be transmitted from the base station to the terminal through the upper layer (eg, RRC signaling, MAC signaling, etc.).

- ASN1START-- TAG-DRX-CONFIG-STARTDRX-Config ::= SEQUENCE {drx-onDurationTimer, drx-InactivityTimer, drx-HARQ-RTT-TimerDL, drx-HARQ-RTT-TimerUL, drx-RetransmissionTimerDL, drx-RetransmissionTimerUL , drx-LongCycleStartOffset, shortDRX SEQUENCE {drx-ShortCycle, drx-ShortCycleTimer, - Need R drx-SlotOffset }-- TAG-DRX-CONFIG-STOP-- ASN1STOP

Here, each parameter (or information) included in the DRX configuration information may be as follows:-drx-onDurationTimer: the duration at the beginning of a DRX Cycle. In other words, the value of the on duration timer;

-drx-SlotOffset: the delay before starting the drx-onDurationTimer (the delay before starting the drx-onDurationTimer);

-drx-InactivityTimer: The duration after the PDCCH occasion in which a PDCCH indicates a new UL or DL transmission for the MAC entity where the PDCCH indicates a new UL or DL transmission for the MAC entity. . In other words, the value of the DRX activity timer;

-drx-RetransmissionTimerDL: the maximum duration until a DL retransmission is received (the maximum duration until a DL retransmission is received);

-drx-RetransmissionTimerUL: the maximum duration until a grant for UL transmission is received (the maximum duration until a grant for UL retransmission is received);

drx-LongCycleStartOffset: the Long DRX cycle and drx-StartOffset which defines the subframe where the Long and Short DRX Cycle starts);

drx-ShortCycle: the Short DRX cycle;

-drx-ShortCycleTimer: the duration the UE should follow a short DRX cycle (the duration the UE shall follow the Short DRX cycle). In other words, the value of the DRX short cycle timer;

-drx-HARQ-RTT-TimerDL: the minimum duration before a DL assignment for HARQ retransmission is expected by the MAC entity;

-drx-HARQ-RTT-TimerUL: the minimum duration before a UL HARQ retransmission grant is expected by the MAC entity.

Meanwhile, specific examples of the setting information for the always-on signal received by the terminal will be described later.

The terminal may perform a DRX operation based on the DRX configuration information and/or the terminal may receive the always-on signal at a sleep time based on the configuration information for the always-on signal (S2020). Here, for example, the cycle of the DRX operation may include an active time and a sleep time. In addition, for example, the terminal may receive setting information for the always-on signal from the base station, where the setting information for the always-on signal may include beam information.

In summary, the terminal may receive the always-on signal at the sleep time based on the setting information for the always-on signal.

As an example, the beam information may include information on spatial (quasi-colocation) QCL of the always-on signal.

For example, beam sweeping is applied to the always-on signal, and the beam information may further include information on the order of the beams being swept.

For example, the setting information for the always-on signal may include resource information to which the always-on signal is transmitted. In this case, as an example, the resource information includes information on the time domain, and the information on the time domain may include at least one of duration, offset, and period. In addition, as an example, the resource information includes information on the frequency domain, and the information on the frequency domain may include at least one of offset and occupied bandwidth.

For example, the terminal may perform transmission or reception at the active time, and the terminal may not perform transmission and reception at the sleep time.

For example, the terminal may receive the configuration information for the always-on signal through terminal-specific signaling or cell-specific signaling. For example, the terminal receives the configuration information for the first always-on signal through the terminal-specific signaling, receives the configuration information for the second always-on signal through the cell-specific signaling, and the first always-on signal The priority of the setting information for may be higher than the priority of the setting information for the second always-on signal.

On the other hand, in this specification, a configuration in which the terminal receives configuration information for the always-on signal and a configuration in which the terminal receives DRX configuration information are described together, but this is merely a description for convenience of description in the specification. That is, in the configuration proposed in the present specification, the terminal receives the setting information for the always-on signal (separately from the terminal performing the DRX operation), and is always on based on the setting information for the always-on signal. The operation of the configuration proposed in this specification may be performed only by the configuration of receiving the signal.

Hereinafter, the setting information (for the always on signal) received by the terminal will be described in more detail.

Some or all of the following items may be signaled to the UE through configuration information, and the UE may know a resource area required for AGC operation based on the configuration.

One. Time/frequency resource allocation information

A. The network may inform the UE of resource information on which the always-on signal is transmitted in the time domain and/or the frequency domain.

B. The time domain information may include duration, offset, period, and the like.

i. The duration may mean the number of symbols to which the always-on signal is transmitted when the always-on signal is transmitted in consecutive symbol(s).

ii. The offset may mean a distance from a reference point (e.g., a starting slot (or subframe) of a radio frame) to an always on signal.

iii. The period may mean a period in which the always-on signal is transmitted.

iv. Alternatively, the time domain resource of the always-on signal may be indicated in units of a set of subframes (or slots). For example, a 10-slot bitmap may be used to indicate a slot to which the always-on signal is transmitted, and the location of the always-on signal transmission in the slot may be indicated using a bitmap or an offset.

v. Alternatively, it can be assumed that the always-on signal is transmitted to a predetermined location. For example, it may be previously defined to assume that the always-on signal is transmitted to the Yth and Zth symbols in the Xth slot of each radio frame, or may be indicated through cell-specific signaling.

vi. Additionally, when the always-on signal is used only for UEs that wake up in a paging occasion, it is assumed that the always-on signal is transmitted at a symbol s before a specific offset from the paging occasion. It might be.

C. Frequency domain information may include offset, occupied bandwidth, and the like.

i. The offset is from the reference point (eg, the starting point of the initial (or active) bandwidth part, the global reference (eg, the reference point such as DMRS, CSI-RS, etc.) to the starting point of the always-on signal. It can mean the distance, etc.

ii. The occupied bandwidth may mean the bandwidth at which the always-on signal is transmitted.

iii. As another method, it can be assumed that the always-on signal is transmitted to a predetermined location in a given time domain resource without signaling frequency domain resource allocation. For example, it can be assumed that the always-on signal is located in the entire system bandwidth, the initial bandwidth part, the active bandwidth, and the sync./PBCH bandwidth.

2. Beam information

A. The network can include beam information in the always on signal configuration.

B. Beam information may mean spatial quasi-colocation (QCL) information of the corresponding always-on signal.

C. The beam information may include sync/PBCH index or CSI-RS information in a spatial QCL relationship with the corresponding always-on signal.

D. Additionally, if the always-on signal is used only for UEs that wake up in a paging occasion, the always-on signal may be assumed to be the same area as the frequency domain allocation of the CORESET receiving the P-RNTI. have.

E. When beam sweeping is applied to the always-on signal, the sequence of beams that are swept through a predefined or always-on signal setting may be indicated. When previously defined, the beam sweep of the always-on signal is swept by the number of sync/PBCH blocks (SSB) known by SIB, etc., and it may be assumed that the sweep order is determined by the SSB index.

Meanwhile, the always-on signal setup proposed above may be indicated to the UE through UE-specific RRC signaling.

On the other hand, in order to assist the AGC of the UE performing the initial access (initial access), the always-on signal setting may be indicated by cell specific RRC signaling such as PBCH or system information. A UE that has received both cell-specific and UE-specific RRC signaling may operate assuming that all corresponding information is available and assume an always-on signal, or assume that the priority of the UE-specific RRC signaling is high. have.

The UE may assume that a signal is always present for a resource on which the always-on signal is set, and the network schedules data or RS transmission on the resource or when there is no signal to be scheduled (the power that the network generally uses. Dummy data (with a characteristic (eg, power intensity)) may be mapped and transmitted.

Additionally, when the always-on signal is transmitted for a UE to wake up in a paging occasion, the always-on signal may be transmitted in a single frequency network (SFN) method. That is, all base stations that transmit paging together can also transmit an always-on signal in the same way as paging. (In this case, each base station may transmit the same signal as an always-on signal.) This is to create an environment such as an environment for receiving paging to a UE receiving paging, which facilitates AGC operation for paging reception. It has the advantage of being able to perform.

Depending on the needs of the network, one or more settings for the always-on signal may be indicated.

Hereinafter, for convenience of understanding, an example in which the terminal receiving the setting information for the always-on signal described above performs AGC will be described with reference to the drawings. The following drawings have been prepared to explain specific examples of the present specification. Since the names of specific devices or specific signal/message/field names described in the drawings are provided by way of example, the technical features of the present specification are not limited to the specific names used in the following drawings.

21 schematically illustrates an example in which the terminal performs AGC according to the present specification.

According to FIG. 21, the terminal may be in an active state (or mode) in area A 2110 and area D 2140. In addition, the terminal may be in a sleep state (or mode) in the area B 2120. Meanwhile, in the case of the area C 2130, the setting information for the always-on signal described above may correspond to an area indicated (informing).

As previously described in FIG. 18, the terminal may perform a transmission and/or reception operation in the region A 2110 and the region D 2140, and the terminal may not perform a transmission and/or reception operation in the region B. have.

Here, the terminal may monitor the always-on signal on the region C 2130, which is an area indicated by the setting information for the always-on signal, based on the setting information for the always-on signal described above. At this time, for example, as shown in the figure, the setting information for the always-on signal is originally a region on the region B 2120 in which the terminal will not perform a transmission and/or reception operation, the region C 2130 Can be instructed. (On the other hand, this specification does not exclude the case where the setting information for the always-on signal indicates the region on the region A and/or the region D corresponding to the active region as the region C 2130.)

Since the setting information for the always-on signal and a specific example thereof are as described above, repeated description of the duplicated content will be omitted.

Hereinafter, the example of FIG. 20 described above will be described from the viewpoint of the terminal. The following drawings have been prepared to explain specific examples of the present specification. Since the names of specific devices or specific signal/message/field names described in the drawings are provided by way of example, the technical features of the present specification are not limited to the specific names used in the following drawings.

22 is a flowchart of a method for a terminal to receive configuration information for an always-on signal according to an embodiment of the present specification.

According to FIG. 22, the UE may receive DRX (Discontinuous Reception) configuration information and/or configuration information for an always on signal (S2210). Here, a specific example in which the terminal receives the DRX (Discontinuous Reception) setting information and/or the setting information for the always on signal is the same as described above, and thus, for convenience of description, repeated description will be omitted.

The terminal may perform a DRX operation based on the DRX configuration information and/or the terminal may receive the always-on signal at the sleep time based on the configuration information for the always-on signal (S2220). Here, a specific example of performing the DRX operation based on the DRX configuration information, but the terminal receives the always-on signal at the sleep time based on the configuration information for the always-on signal is the same as described above. For convenience, the repeated description will be omitted.

In summary, the UE that has received the always on signal setting can perform the AGC operation based on the corresponding information.

For example, the UE entering the sleep mode is an always-on signal closest to the time when the activation mode is scheduled (eg, a paging occasion) (ie, the always-on signal closest to the point in time). ) To perform the AGC by waking up, and perform a normal Rx operation from the time the activation mode starts.

In addition, for example, when there is a signal available to the UE (eg, sync/PBCH, set CSI-RS), the UE operates AGC using the signal closest to the start time of the activation mode among the corresponding signal and the always on signal. You can also do

In addition, for example, when the UE speed is slow or the sleep mode period is short, the UE may skip the AGC and operate in the activation mode based on the AGC result in the previous activation mode.

Also, for example, the UE may assume that the power of the always-on signal is constant.

When explaining in more detail an example of a method for receiving configuration information for an always-on signal from a terminal perspective, it may be as follows. The following drawings have been prepared to explain specific examples of the present specification. Since the names of specific devices or specific signal/message/field names described in the drawings are provided by way of example, the technical features of the present specification are not limited to the specific names used in the following drawings.

23 is a flowchart of a method for a terminal to receive configuration information for an always-on signal according to another embodiment of the present specification.

According to FIG. 23, the terminal may receive information (S2310). Here, the information received by the terminal may include always on signal configuration information.

The terminal may enter the sleep mode (S2320). Here, the sleep mode entered by the terminal may be a sleep mode in the DRX operation or a sleep mode in the above-described drawings (eg, FIG. 18 or FIG. 21 ).

The terminal may determine a time instance for the active mode (S2330). Here, an example in which the terminal determines the time for the active mode is as described above, so repeated description is omitted for convenience of description.

The terminal determines whether the AGC (S2340).

Here, when the terminal determines to perform the AGC, the terminal performs the AGC operation (S2350).

After the terminal performs the AGC (or after the terminal decides not to perform the AGC in S2340), the terminal enters the activation mode (transmission/reception) (also includes updating the settings for the always-on signal) ( S2370).

Thereafter, the terminal determines whether to enter the sleep mode (S2380).

If the terminal enters the sleep mode, the terminal may enter the step S2320.

Or, if the terminal has not entered the sleep mode, it may be determined whether or not the AGC (S2360).

If it is determined in step S2360 to perform the AGC, the terminal may enter step S2350. Or, if it is determined in step S2360 that the AGC is not to be performed, the terminal may enter step S2370.

As shown in the figure, when the AGC operation is required in the switching between the sleep mode and the activation mode, the always-on signal may be used, and the always-on signal setting update may be performed in the active mode.

On the other hand, as described above, the always-on signal may be indicated by UE-specific or cell-specific RRC signaling, and the UE receiving the signaling is based on the always-on signal information indicated in the corresponding signaling when AGC is required. AGC can be performed on the resource.

In addition, as described above, in case a UE that needs to receive paging needs AGC, base stations belonging to the paging area (ie, base stations transmitting the same paging signal at the same time) may transmit an always on signal in an SFN manner. This may mean that the reception power of the always-on signal around the paging occasion and the always-on signal far from the paging occasion can be measured differently on the UE side.

Since specific examples of the examples described in FIG. 23 are the same as described above, in order to omit unnecessary repetition, repetition of repetitive contents will be omitted.

24 is a block diagram schematically showing an example of a device for receiving a configuration information for an always-on signal according to an embodiment of the present specification.

According to FIG. 24, the processor 2400 may include an information receiving unit 2410 and a DRX performing unit 2420. Here, the processor may correspond to the processors in FIGS. 27 to 33.

The information receiving unit 2410 may be configured to receive (continuous reception) setting information for DRX (Discontinuous Reception) setting information and/or always on signal. Here, a specific example in which the terminal receives the DRX (Discontinuous Reception) setting information and/or the setting information for the always on signal is the same as described above, and thus, for convenience of description, repeated description will be omitted.

The DRX performing unit 2420 performs a DRX operation based on the DRX configuration information and/or the terminal to receive the always-on signal (transceiver) at the sleep time based on the configuration information for the always-on signal. Can be set. Here, a specific example of performing the DRX operation based on the DRX configuration information, but the terminal receives the always-on signal at the sleep time based on the configuration information for the always-on signal is the same as described above. For convenience, the repeated description will be omitted.

On the other hand, an example of a device for receiving the configuration information for the always-on signal proposed in the present specification may be implemented as a computer-readable medium (CRM), or may be implemented as a chipset as well as a terminal.

For example, the apparatus includes at least one memory and at least one processor operably coupled with the at least one memory, wherein the processor receives Discontinuous Reception (DRX) setting information from a base station and the DRX setting information. Based on the DRX operation, the cycle of the DRX operation includes an active time and a sleep time, the terminal receives the configuration information for the always on signal (always on signal) from the base station, the always on The configuration information for the signal may include beam information, and the terminal may be a device characterized by receiving the always-on signal at the sleep time based on the configuration information for the always-on signal.

Since a specific example of the above device is as described above, to avoid unnecessary repetition, the repetition of repetitive contents is omitted.

Also, for example, in at least one computer-readable medium (CRM) that stores an instruction to perform operations based on execution by at least one processor, the operations are set to Discontinuous Reception (DRX) from a base station. Receiving information and performing the DRX operation based on the DRX configuration information, the cycle of the DRX operation includes an active time and a sleep time, and the terminal is configured for an always on signal from the base station. Receiving configuration information, configuration information for the always-on signal includes beam information, and the terminal receives the always-on signal at the sleep time based on the configuration information for the always-on signal It may be a recording medium.

Since the specific example of the above recording medium is as described above, in order to avoid unnecessary repetition, repetition of repetitive contents is omitted.

Hereinafter, the example of FIG. 20 described above will be described in terms of a base station. The following drawings have been prepared to explain specific examples of the present specification. Since the names of specific devices or specific signal/message/field names described in the drawings are provided by way of example, the technical features of the present specification are not limited to the specific names used in the following drawings.

25 is a flowchart of a method for a base station to transmit configuration information for an always-on signal according to an embodiment of the present specification.

According to FIG. 25, the base station may transmit DRX (Discontinuous Reception) setting information to the terminal (S2510 ). Since a specific example of this is as described above, repeated description will be omitted for convenience of description.

The base station may transmit setting information for the always-on signal to the terminal (S2520). Here, the setting information for the always-on signal may include beam information. Since a specific example of this is as described above, repeated description will be omitted for convenience of description.

The base station may transmit the always-on signal to the terminal (S2530). Since a specific example of this is as described above, repeated description will be omitted for convenience of description.

That is, the network may indicate the always-on signal setting through cell-specific or terminal-specific RRC signaling based on scheduling information, and another resource region for which the UE assumes the always-on signal by the always-on signal setting Data/RS (reference signal) for the UE may be transmitted.

At this time, if there is no data/RS to be transmitted, the network may transmit dummy data to the resource region indicated by the always-on signal to perform an operation corresponding to the always-on signal setting.

Additionally, the network can transmit always-on signals with constant power. For example, the always-on signal power may be transmitted in the same manner as the sync./PBCH transmission power.

As another example, when the always-on signal is transmitted for UEs who wake up from a paging opportunity, the network may transmit the always-on signal with the same power as the paging signal transmission power.

26 is a block diagram schematically showing an example of an apparatus for transmitting configuration information for an always-on signal according to an embodiment of the present specification.

According to FIG. 26, the processor 2600 may include a DRX configuration information transmission unit 2610, a constant on signal configuration information transmission unit 2620, and a constant on signal transmission unit 2630. Here, the processor may correspond to the processors in FIGS. 27 to 33.

The DRX configuration information transmission unit 2610 may be configured to transmit DRX (Discontinuous Reception) configuration information to the terminal. Since a specific example of this is as described above, repeated description will be omitted for convenience of description.

The always-on signal setting information transmitter 2620 may be configured to transmit the setting information for the always-on signal to the terminal. Here, the setting information for the always-on signal may include beam information. Since a specific example of this is as described above, repeated description will be omitted for convenience of description.

The always-on signal transmitter 2630 may be configured to transmit the always-on signal to the terminal. Since a specific example of this is as described above, repeated description will be omitted for convenience of description.

When the embodiments of the present specification described above are applied, the UE may prevent frequent wake-up due to a mismatch between paging occasion and SSB transmission time, and waste and active power due to switching between sleep mode and activation mode The reception performance degradation in the mode can be effectively prevented.

In addition, the network can reduce the scheduling limitation by a designated signal such as RS by using the always-on signal, so that more efficient scheduling can be performed.

For example, in order to use a designated signal such as a terminal-specific RS for AGC use, it may be difficult to transmit data to another UE in a section in which the corresponding signal is transmitted. Since only signals need to be transmitted, the scheduling flexibility of the network can be increased.

27 illustrates a communication system 1 applied to the present specification.

Referring to FIG. 27, the communication system 1 applied to the present specification includes a wireless device, a base station, and a network. Here, the wireless device means a device that performs communication using a wireless access technology (eg, 5G NR (New RAT), Long Term Evolution (LTE)), and may be referred to as a communication/wireless/5G device. Although not limited to this, the wireless device includes a robot 100a, a vehicle 100b-1, 100b-2, an XR (eXtended Reality) device 100c, a hand-held device 100d, and a home appliance 100e. ), Internet of Thing (IoT) device 100f, and AI device/server 400. For example, the vehicle may include a vehicle equipped with a wireless communication function, an autonomous driving vehicle, a vehicle capable of performing inter-vehicle communication, and the like. Here, the vehicle may include a UAV (Unmanned Aerial Vehicle) (eg, a drone). XR devices include Augmented Reality (AR)/Virtual Reality (VR)/Mixed Reality (MR) devices, Head-Mounted Device (HMD), Head-Up Display (HUD) provided in vehicles, televisions, smartphones, It may be implemented in the form of a computer, wearable device, home appliance, digital signage, vehicle, robot, or the like. The mobile device may include a smart phone, a smart pad, a wearable device (eg, a smart watch, smart glasses), a computer (eg, a notebook, etc.). Household appliances may include a TV, a refrigerator, and a washing machine. IoT devices may include sensors, smart meters, and the like. For example, the base station and the network may also be implemented as wireless devices, and the specific wireless device 200a may operate as a base station/network node to other wireless devices.

The wireless devices 100a to 100f may be connected to the network 300 through the base station 200. AI (Artificial Intelligence) technology may be applied to the wireless devices 100a to 100f, and the wireless devices 100a to 100f may be connected to the AI server 400 through the network 300. The network 300 may be configured using a 3G network, a 4G (eg, LTE) network, or a 5G (eg, NR) network. The wireless devices 100a to 100f may communicate with each other through the base station 200/network 300, but may directly communicate (e.g. sidelink communication) without going through the base station/network. For example, the vehicles 100b-1 and 100b-2 may perform direct communication (e.g. Vehicle to Vehicle (V2V)/Vehicle to everything (V2X) communication). In addition, the IoT device (eg, sensor) may directly communicate with other IoT devices (eg, sensors) or other wireless devices 100a to 100f.

Wireless communication/ connections 150a, 150b, and 150c may be achieved between the wireless devices 100a to 100f/base station 200 and the base station 200/base station 200. Here, the wireless communication/connection is various wireless access such as uplink/downlink communication 150a and sidelink communication 150b (or D2D communication), base station communication 150c (eg relay, IAB (Integrated Access Backhaul)). It can be achieved through technology (eg, 5G NR), and wireless devices/base stations/wireless devices, base stations and base stations can transmit/receive radio signals to each other through wireless communication/ connections 150a, 150b, 150c. For example, wireless communication/ connections 150a, 150b, and 150c may transmit/receive signals through various physical channels.To this end, based on various proposals herein, for wireless signal transmission/reception At least some of various configuration information setting processes, various signal processing processes (eg, channel encoding/decoding, modulation/demodulation, resource mapping/demapping, etc.), resource allocation processes, and the like may be performed.

On the other hand, NR supports a number of numerology (or subcarrier spacing (SCS)) to support various 5G services. For example, when the SCS is 15 kHz, it supports a wide area in traditional cellular bands, and when the SCS is 30 kHz/60 kHz, it is dense-urban, lower latency. And a wider carrier bandwidth, and when the SCS is 60 kHz or higher, a bandwidth greater than 24.25 GHz is supported to overcome phase noise.

The NR frequency band can be defined as a frequency range of two types (FR1, FR2). The numerical value of the frequency range may be changed, for example, the frequency range of the two types (FR1, FR2) may be as shown in Table 5 below. For convenience of explanation, among the frequency ranges used in the NR system, FR1 may mean “sub 6GHz range”, and FR2 may mean “above 6GHz range” and may be called millimeter wave (mmW). .

Frequency Range designation	Corresponding frequency range	Subcarrier Spacing
FR1	450MHz- 6000MHz	15, 30, 60 kHz
FR2	24250MHz- 52600MHz	60, 120, 240 kHz

As described above, the numerical value of the frequency range of the NR system can be changed. For example, FR1 may include a band of 410MHz to 7125MHz as shown in Table 6 below. That is, FR1 may include a frequency band of 6 GHz (or 5850, 5900, 5925 MHz, etc.) or higher. For example, a frequency band of 6 GHz or higher (or 5850, 5900, 5925 MHz, etc.) included in FR1 may include an unlicensed band. The unlicensed band may be used for various purposes, for example, for communication for a vehicle (eg, autonomous driving).

Frequency Range designation	Corresponding frequency range	Subcarrier Spacing
FR1	410MHz- 7125MHz	15, 30, 60 kHz
FR2	24250MHz- 52600MHz	60, 120, 240 kHz

Hereinafter, an example of a wireless device to which the present specification is applied will be described. FIG. 28 illustrates a wireless device that can be applied to the present specification.

Referring to FIG. 28, the first wireless device 100 and the second wireless device 200 may transmit and receive wireless signals through various wireless access technologies (eg, LTE and NR). Here, {the first wireless device 100, the second wireless device 200} is {wireless device 100x, base station 200} and/or {wireless device 100x), wireless device 100x in FIG. }.

The first wireless device 100 includes one or more processors 102 and one or more memories 104, and may further include one or more transceivers 106 and/or one or more antennas 108. Processor 102 controls memory 104 and/or transceiver 106 and may be configured to implement the descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed herein. For example, the processor 102 may process information in the memory 104 to generate the first information/signal, and then transmit the wireless signal including the first information/signal through the transceiver 106. In addition, the processor 102 may receive the wireless signal including the second information/signal through the transceiver 106 and store the information obtained from the signal processing of the second information/signal in the memory 104. The memory 104 may be connected to the processor 102 and may store various information related to the operation of the processor 102. For example, memory 104 may be used to perform some or all of the processes controlled by processor 102, or instructions to perform the descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed herein. You can store software code that includes Here, the processor 102 and the memory 104 may be part of a communication modem/circuit/chip designed to implement wireless communication technology (eg, LTE, NR). The transceiver 106 can be coupled to the processor 102 and can transmit and/or receive wireless signals through one or more antennas 108. The transceiver 106 may include a transmitter and/or receiver. The transceiver 106 may be mixed with a radio frequency (RF) unit. In the present specification, the wireless device may mean a communication modem/circuit/chip.

The second wireless device 200 includes one or more processors 202, one or more memories 204, and may further include one or more transceivers 206 and/or one or more antennas 208. Processor 202 controls memory 204 and/or transceiver 206 and may be configured to implement the descriptions, functions, procedures, suggestions, methods, and/or operational flowcharts disclosed herein. For example, the processor 202 may process information in the memory 204 to generate third information/signal, and then transmit a wireless signal including the third information/signal through the transceiver 206. In addition, the processor 202 may receive the wireless signal including the fourth information/signal through the transceiver 206 and store the information obtained from the signal processing of the fourth information/signal in the memory 204. The memory 204 may be connected to the processor 202, and may store various information related to the operation of the processor 202. For example, the memory 204 is an instruction to perform some or all of the processes controlled by the processor 202, or to perform the descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed herein. You can store software code that includes Here, the processor 202 and the memory 204 may be part of a communication modem/circuit/chip designed to implement wireless communication technology (eg, LTE, NR). The transceiver 206 can be coupled to the processor 202 and can transmit and/or receive wireless signals through one or more antennas 208. Transceiver 206 may include a transmitter and/or receiver. Transceiver 206 may be mixed with an RF unit. In the present specification, the wireless device may mean a communication modem/circuit/chip.

Hereinafter, hardware elements of the wireless devices 100 and 200 will be described in more detail. Without being limited to this, one or more protocol layers may be implemented by one or more processors 102 and 202. For example, one or more processors 102, 202 may implement one or more layers (eg, functional layers such as PHY, MAC, RLC, PDCP, RRC, SDAP). The one or more processors 102 and 202 may include one or more Protocol Data Units (PDUs) and/or one or more Service Data Units (SDUs) according to the descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed herein. Can be created. The one or more processors 102, 202 may generate messages, control information, data or information according to the descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed herein. The one or more processors 102, 202 generate signals (eg, baseband signals) including PDUs, SDUs, messages, control information, data or information according to the functions, procedures, suggestions and/or methods disclosed herein. , To one or more transceivers 106, 206. One or more processors 102, 202 may receive signals (eg, baseband signals) from one or more transceivers 106, 206, and descriptions, functions, procedures, suggestions, methods and/or operational flow diagrams disclosed herein PDUs, SDUs, messages, control information, data, or information may be obtained according to the fields.

The one or more processors 102, 202 may be referred to as a controller, microcontroller, microprocessor, or microcomputer. The one or more processors 102, 202 may be implemented by hardware, firmware, software, or a combination thereof. For example, one or more Application Specific Integrated Circuits (ASICs), one or more Digital Signal Processors (DSPs), one or more Digital Signal Processing Devices (DSPDs), one or more Programmable Logic Devices (PLDs), or one or more Field Programmable Gate Arrays (FPGAs) May be included in one or more processors 102, 202. Descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed in this document may be implemented using firmware or software, and firmware or software may be implemented to include modules, procedures, functions, and the like. The descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed herein are either firmware or software set to perform or are stored in one or more processors 102, 202 or stored in one or more memories 104, 204. It can be driven by the above processors (102, 202). The descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed herein may be implemented using firmware or software in the form of code, instructions and/or instructions.

The one or more memories 104, 204 may be coupled to one or more processors 102, 202, and may store various types of data, signals, messages, information, programs, codes, instructions, and/or instructions. The one or more memories 104, 204 may be comprised of ROM, RAM, EPROM, flash memory, hard drive, register, cache memory, computer readable storage medium, and/or combinations thereof. The one or more memories 104, 204 may be located inside and/or outside of the one or more processors 102, 202. Also, the one or more memories 104 and 204 may be connected to the one or more processors 102 and 202 through various technologies such as a wired or wireless connection.

The one or more transceivers 106 and 206 may transmit user data, control information, radio signals/channels, and the like referred to in the methods and/or operational flowcharts of this document to one or more other devices. The one or more transceivers 106, 206 may receive user data, control information, radio signals/channels, and the like referred to in the descriptions, functions, procedures, suggestions, methods and/or operational flowcharts disclosed herein from one or more other devices. have. For example, one or more transceivers 106, 206 may be connected to one or more processors 102, 202, and may transmit and receive wireless signals. For example, one or more processors 102, 202 can control one or more transceivers 106, 206 to transmit user data, control information, or wireless signals to one or more other devices. Additionally, the one or more processors 102, 202 can control one or more transceivers 106, 206 to receive user data, control information, or wireless signals from one or more other devices. In addition, one or more transceivers 106, 206 may be coupled to one or more antennas 108, 208, and one or more transceivers 106, 206 may be described, functions described herein through one or more antennas 108, 208. , It may be set to transmit and receive user data, control information, radio signals/channels, etc. referred to in procedures, suggestions, methods and/or operation flowcharts. In this document, the one or more antennas may be a plurality of physical antennas or a plurality of logical antennas (eg, antenna ports). The one or more transceivers 106 and 206 process the received wireless signal/channel and the like in the RF band signal to process the received user data, control information, wireless signal/channel, and the like using one or more processors 102 and 202. It can be converted to a baseband signal. The one or more transceivers 106 and 206 may convert user data, control information, and radio signals/channels processed using one or more processors 102 and 202 from a baseband signal to an RF band signal. To this end, the one or more transceivers 106, 206 may include (analog) oscillators and/or filters.

29 shows another example of a wireless device that can be applied to the present specification.

According to FIG. 29, a wireless device may include at least one processor 102, 202, at least one memory 104, 204, at least one transceiver 106, 206, one or more antennas 108, 208. have.

As a difference between the example of the wireless device described in FIG. 28 and the example of the wireless device in FIG. 29, in FIG. 28, the processors 102 and 202 and the memories 104 and 204 are separated, but in the example of FIG. The memory 104, 204 is included in the (102, 202).

Here, detailed descriptions of the processors 102, 202, memories 104, 204, transceivers 106, 206, and one or more antennas 108, 208 are as described above, in order to avoid repetition of unnecessary descriptions, Repeat description will be omitted.

Hereinafter, an example of a signal processing circuit to which the present specification is applied will be described.

30 illustrates a signal processing circuit for a transmission signal.

Referring to FIG. 30, the signal processing circuit 1000 may include a scrambler 1010, a modulator 1020, a layer mapper 1030, a precoder 1040, a resource mapper 1050, and a signal generator 1060. have. Although not limited to this, the operations/functions of FIG. 30 may be performed in processors 102, 202 and/or transceivers 106, 206 of FIG. The hardware elements of FIG. 30 can be implemented in the processors 102, 202 and/or transceivers 106, 206 of FIG. 28. For example, blocks 1010 to 1060 may be implemented in processors 102 and 202 of FIG. 28. Further, blocks 1010 to 1050 may be implemented in the processors 102 and 202 of FIG. 28, and block 1060 may be implemented in the transceivers 106 and 206 of FIG. 28.

The codeword may be converted into a wireless signal through the signal processing circuit 1000 of FIG. 30. Here, the codeword is an encoded bit sequence of an information block. The information block may include a transport block (eg, UL-SCH transport block, DL-SCH transport block). The radio signal may be transmitted through various physical channels (eg, PUSCH, PDSCH).

Specifically, the codeword may be converted into a scrambled bit sequence by the scrambler 1010. The scramble sequence used for scramble is generated based on the initialization value, and the initialization value may include ID information of the wireless device. The scrambled bit sequence can be modulated into a modulated symbol sequence by modulator 1020. The modulation scheme may include pi/2-Binary Phase Shift Keying (pi/2-BPSK), m-Phase Shift Keying (m-PSK), m-Quadrature Amplitude Modulation (m-QAM), and the like. The complex modulation symbol sequence may be mapped to one or more transport layers by the layer mapper 1030. The modulation symbols of each transport layer may be mapped to the corresponding antenna port(s) by the precoder 1040 (precoding). The output z of the precoder 1040 can be obtained by multiplying the output y of the layer mapper 1030 by the precoding matrix W of N*M. Here, N is the number of antenna ports and M is the number of transport layers. Here, the precoder 1040 may perform precoding after performing transform precoding (eg, DFT transformation) on complex modulation symbols. Further, the precoder 1040 may perform precoding without performing transform precoding.

The resource mapper 1050 may map modulation symbols of each antenna port to time-frequency resources. The time-frequency resource may include a plurality of symbols (eg, CP-OFDMA symbol, DFT-s-OFDMA symbol) in the time domain, and may include a plurality of subcarriers in the frequency domain. The signal generator 1060 generates a radio signal from the mapped modulation symbols, and the generated radio signal can be transmitted to other devices through each antenna. To this end, the signal generator 1060 may include an Inverse Fast Fourier Transform (IFFT) module and a Cyclic Prefix (CP) inserter, a Digital-to-Analog Converter (DAC), a frequency uplink converter, etc. .

The signal processing process for the received signal in the wireless device may be configured as the inverse of the signal processing processes 1010 to 1060 of FIG. 30. For example, the wireless device (eg, 100 and 200 in FIG. 28) may receive a wireless signal from the outside through an antenna port/transceiver. The received radio signal may be converted into a baseband signal through a signal restorer. To this end, the signal recoverer may include a frequency downlink converter (ADC), an analog-to-digital converter (ADC), a CP remover, and a Fast Fourier Transform (FFT) module. Thereafter, the baseband signal may be restored to a codeword through a resource de-mapper process, a postcoding process, a demodulation process, and a de-scramble process. The codeword can be restored to the original information block through decoding. Accordingly, the signal processing circuit (not shown) for the received signal may include a signal restorer, a resource de-mapper, a post coder, a demodulator, a de-scrambler and a decoder.

Hereinafter, an example of using a wireless device to which the present specification is applied will be described.

31 shows another example of a wireless device applied to the present specification. The wireless device may be implemented in various forms according to use-example/service (see FIG. 27).

Referring to FIG. 31, the wireless devices 100 and 200 correspond to the wireless devices 100 and 200 of FIG. 28, and various elements, components, units/units, and/or modules ). For example, the wireless devices 100 and 200 may include a communication unit 110, a control unit 120, a memory unit 130, and additional elements 140. The communication unit may include a communication circuit 112 and a transceiver(s) 114. For example, the communication circuit 112 can include one or more processors 102,202 and/or one or more memories 104,204 of FIG. For example, the transceiver(s) 114 may include one or more transceivers 106,206 and/or one or more antennas 108,208 of FIG. 28. The control unit 120 is electrically connected to the communication unit 110, the memory unit 130, and the additional element 140, and controls the overall operation of the wireless device. For example, the controller 120 may control the electrical/mechanical operation of the wireless device based on the program/code/command/information stored in the memory unit 130. In addition, the control unit 120 transmits information stored in the memory unit 130 to the outside (eg, another communication device) through the wireless/wired interface through the communication unit 110, or externally (eg, through the communication unit 110). Information received through a wireless/wired interface from another communication device) may be stored in the memory unit 130.

The additional element 140 may be variously configured according to the type of wireless device. For example, the additional element 140 may include at least one of a power unit/battery, an input/output unit (I/O unit), a driving unit, and a computing unit. Although not limited to this, wireless devices include robots (FIGS. 27, 100A), vehicles (FIGS. 27, 100B-1, 100B-2), XR devices (FIGS. 27, 100C), portable devices (FIGS. 27, 100D), and household appliances (Fig. 27, 100e), IoT device (Fig. 27, 100f), digital broadcasting terminal, hologram device, public safety device, MTC device, medical device, fintech device (or financial device), security device, climate/environment device, It may be implemented in the form of an AI server/device (Figs. 27 and 400), a base station (Figs. 27 and 200), and a network node. The wireless device may be mobile or may be used in a fixed place depending on use-example/service.

In FIG. 31, various elements, components, units/parts, and/or modules in the wireless devices 100 and 200 may be connected to each other through a wired interface, or at least some of them may be connected wirelessly through the communication unit 110. For example, in the wireless devices 100 and 200, the control unit 120 and the communication unit 110 are connected by wire, and the control unit 120 and the first unit (eg, 130, 140) are connected through the communication unit 110. It can be connected wirelessly. Further, each element, component, unit/unit, and/or module in the wireless devices 100 and 200 may further include one or more elements. For example, the controller 120 may be composed of one or more processor sets. For example, the control unit 120 may include a set of communication control processor, application processor, electronic control unit (ECU), graphic processing processor, and memory control processor. As another example, the memory unit 130 includes random access memory (RAM), dynamic RAM (DRAM), read only memory (ROM), flash memory, volatile memory, and non-volatile memory (non- volatile memory) and/or combinations thereof.

Hereinafter, the implementation example of FIG. 31 will be described in more detail with reference to the drawings.

32 illustrates a mobile device applied to the present specification. The portable device may include a smart phone, a smart pad, a wearable device (eg, a smart watch, a smart glass), and a portable computer (eg, a notebook). The mobile device may be referred to as a mobile station (MS), a user terminal (UT), a mobile subscriber station (MSS), a subscriber station (SS), an advanced mobile station (AMS), or a wireless terminal (WT).

Referring to FIG. 32, the mobile device 100 includes an antenna unit 108, a communication unit 110, a control unit 120, a memory unit 130, a power supply unit 140a, an interface unit 140b, and an input/output unit 140c. ). The antenna unit 108 may be configured as part of the communication unit 110. Blocks 110 to 130/140a to 140c correspond to blocks 110 to 130/140 in FIG. 31, respectively.

The communication unit 110 may transmit and receive signals (eg, data, control signals, etc.) with other wireless devices and base stations. The control unit 120 may perform various operations by controlling the components of the portable device 100. The controller 120 may include an application processor (AP). The memory unit 130 may store data/parameters/programs/codes/commands necessary for driving the portable device 100. Also, the memory unit 130 may store input/output data/information. The power supply unit 140a supplies power to the portable device 100 and may include a wired/wireless charging circuit, a battery, and the like. The interface unit 140b may support connection between the mobile device 100 and other external devices. The interface unit 140b may include various ports (eg, audio input/output ports, video input/output ports) for connection with external devices. The input/output unit 140c may receive or output image information/signal, audio information/signal, data, and/or information input from a user. The input/output unit 140c may include a camera, a microphone, a user input unit, a display unit 140d, a speaker, and/or a haptic module.

For example, in the case of data communication, the input/output unit 140c acquires information/signal (eg, touch, text, voice, image, video) input from a user, and the obtained information/signal is transmitted to the memory unit 130 Can be saved. The communication unit 110 may convert information/signals stored in the memory into wireless signals, and transmit the converted wireless signals directly to other wireless devices or to a base station. In addition, after receiving a radio signal from another wireless device or a base station, the communication unit 110 may restore the received radio signal to original information/signal. After the restored information/signal is stored in the memory unit 130, it can be output in various forms (eg, text, voice, image, video, heptic) through the input/output unit 140c.

33 illustrates a vehicle or an autonomous vehicle applied to the present specification. Vehicles or autonomous vehicles can be implemented as mobile robots, vehicles, trains, aerial vehicles (AVs), ships, and the like.

Referring to FIG. 33, the vehicle or autonomous vehicle 100 includes an antenna unit 108, a communication unit 110, a control unit 120, a driving unit 140a, a power supply unit 140b, a sensor unit 140c, and autonomous driving It may include a portion (140d). The antenna unit 108 may be configured as part of the communication unit 110. Blocks 110/130/140a-140d correspond to blocks 110/130/140 in FIG. 31, respectively.

The communication unit 110 may transmit and receive signals (eg, data, control signals, etc.) with external devices such as other vehicles, a base station (e.g. base station, road side unit, etc.) and a server. The controller 120 may perform various operations by controlling elements of the vehicle or the autonomous vehicle 100. The controller 120 may include an electronic control unit (ECU). The driving unit 140a may cause the vehicle or the autonomous vehicle 100 to travel on the ground. The driving unit 140a may include an engine, a motor, a power train, wheels, brakes, and steering devices. The power supply unit 140b supplies power to the vehicle or the autonomous vehicle 100 and may include a wired/wireless charging circuit, a battery, and the like. The sensor unit 140c may obtain vehicle status, surrounding environment information, user information, and the like. The sensor unit 140c includes an inertial measurement unit (IMU) sensor, a collision sensor, a wheel sensor, a speed sensor, a tilt sensor, a weight sensor, a heading sensor, a position module, and a vehicle forward /Reverse sensor, battery sensor, fuel sensor, tire sensor, steering sensor, temperature sensor, humidity sensor, ultrasonic sensor, illumination sensor, pedal position sensor, and the like. The autonomous driving unit 140d maintains a driving lane, automatically adjusts speed, such as adaptive cruise control, and automatically moves along a predetermined route, and automatically sets a route when a destination is set. Technology, etc. can be implemented.

For example, the communication unit 110 may receive map data, traffic information data, and the like from an external server. The autonomous driving unit 140d may generate an autonomous driving route and a driving plan based on the acquired data. The controller 120 may control the driving unit 140a such that the vehicle or the autonomous vehicle 100 moves along the autonomous driving path according to a driving plan (eg, speed/direction adjustment). During autonomous driving, the communication unit 110 may acquire the latest traffic information data non-periodically from an external server, and may acquire surrounding traffic information data from nearby vehicles. Also, during autonomous driving, the sensor unit 140c may acquire vehicle status and surrounding environment information. The autonomous driving unit 140d may update the autonomous driving route and driving plan based on newly acquired data/information. The communication unit 110 may transmit information regarding a vehicle location, an autonomous driving route, and a driving plan to an external server. The external server may predict traffic information data in advance using AI technology or the like based on the information collected from the vehicle or autonomous vehicles, and provide the predicted traffic information data to the vehicle or autonomous vehicles.

The claims described herein can be combined in various ways. For example, the technical features of the method claims of the present specification may be combined and implemented as a device, and the technical features of the device claims of the specification may be combined and implemented as a method. Further, the technical features of the method claim of the present specification and the technical features of the device claim may be combined and implemented as a device, and the technical features of the method claim of the method and the device claims of the present specification may be combined and implemented as a method.

Claims (52)

1. In a method for receiving an always on signal (always on signal) performed by a terminal in a wireless communication system,

   Receive DRX (Discontinuous Reception) setting information from the base station; And

   The DRX operation is performed based on the DRX configuration information,

   The DRX operation cycle includes an active time and a sleep time,

   The terminal receives configuration information for the always-on signal from the base station,

   The setting information for the always-on signal includes beam information, and

   And the terminal receives the always-on signal at the sleep time based on the setting information for the always-on signal.
2. The method of claim 1, wherein the beam information includes information on a spatial quasi-colocation (QCL) of the always-on signal.
3. According to claim 1, Beam sweeping is applied to the always-on signal,

   The beam information further comprises information about the order of the swept beams.
4. The method of claim 1, wherein the setting information for the always-on signal includes resource information to which the always-on signal is transmitted.
5. The method of claim 4, wherein the resource information includes information about the time domain,

   The information on the time domain is characterized in that it comprises at least one of duration (duration), offset (offset), period (periodicity).
6. The method of claim 4, wherein the resource information includes information about the frequency domain,

   The information on the frequency domain comprises at least one of offset, occupied bandwidth.
7. The method of claim 1, wherein the terminal performs transmission or reception at the active time, and the terminal does not perform transmission and reception at the sleep time.
8. The method of claim 1, wherein the terminal receives configuration information for the always-on signal through terminal-specific signaling or cell-specific signaling.
9. The method of claim 8, wherein the terminal receives the configuration information for the first always-on signal through the terminal-specific signaling and receives the configuration information for the second always-on signal through the cell-specific signaling,

   The priority of the setting information for the first always-on signal is higher than the priority of the setting information for the second always-on signal.
10. The terminal,

    Transceiver;

    At least one memory; And

    And at least one processor operatively coupled to the at least one memory and the transceiver, the processor comprising:

    Receive DRX (Discontinuous Reception) setting information from the base station; And

    The DRX operation is performed based on the DRX configuration information,

    The DRX operation cycle includes an active time and a sleep time,

    The terminal receives the configuration information for the always on signal (always on signal) from the base station,

    The setting information for the always-on signal includes beam information, and

    The terminal receives the always-on signal at the sleep time based on the setting information for the always-on signal.
11. The terminal of claim 10, wherein the beam information includes information on a spatial quasi-colocation (QCL) of the always-on signal.
12. 11. The method of claim 10, Beam sweeping is applied to the always-on signal,

    The beam information is a terminal characterized in that it further comprises information about the order of the sweeping beam.
13. The terminal of claim 10, wherein the setting information for the always-on signal includes resource information on which the always-on signal is transmitted.
14. The method of claim 13, wherein the resource information includes information about the time domain,

    The information on the time domain is a terminal characterized in that it includes at least one of duration (duration), offset (offset), and period (periodicity).
15. The method of claim 13, wherein the resource information includes information about the frequency domain,

    The information on the frequency domain comprises at least one of offset and occupied bandwidth.
16. The terminal of claim 10, wherein the terminal performs transmission or reception at the active time, and the terminal does not perform transmission and reception at the sleep time.
17. The terminal of claim 10, wherein the terminal receives configuration information on the always-on signal through terminal-specific signaling or cell-specific signaling.
18. 18. The method of claim 17, wherein the terminal receives configuration information for a first always-on signal through the terminal-specific signaling and receives configuration information for a second always-on signal through the cell-specific signaling,

    A terminal characterized in that the priority of the setting information for the first always-on signal is higher than the priority of the setting information for the second always-on signal.
19. The device,

    At least one memory; And

    And at least one processor operatively coupled to the at least one memory, the processor comprising:

    Configured to control the transceiver to receive Discontinuous Reception (DRX) setting information from the base station; And

    Is configured to perform the DRX operation based on the DRX configuration information,

    The DRX operation cycle includes an active time and a sleep time,

    The processor is configured to control the transceiver to receive configuration information for an always on signal from the base station,

    The setting information for the always-on signal includes beam information, and

    And the processor is configured to control the transceiver to receive the always-on signal at the sleep time based on the setting information for the always-on signal.
20. 20. The apparatus of claim 19, wherein the beam information includes information on a spatial quasi-colocation (QCL) of the always-on signal.
21. 20. The method of claim 19, Beam sweeping is applied to the always-on signal,

    The beam information further comprises information about the order of the swept beams.
22. The apparatus of claim 19, wherein the setting information for the always-on signal includes resource information to which the always-on signal is transmitted.
23. The method of claim 22, wherein the resource information includes information about the time domain,

    The information on the time domain is characterized in that it comprises at least one of a duration (duration), offset (offset), period (periodicity).
24. The method of claim 22, wherein the resource information includes information on the frequency domain,

    And the information on the frequency domain includes at least one of offset and occupied bandwidth.
25. The apparatus of claim 19, wherein the device performs transmission or reception at the active time, and the device does not perform transmission and reception at the sleep time.
26. The device of claim 19, wherein the device receives configuration information for the always-on signal through terminal-specific signaling or cell-specific signaling.
27. 27. The method of claim 26, wherein the device receives the configuration information for the first always-on signal through the terminal-specific signaling and the configuration information for the second always-on signal through the cell-specific signaling,

    And the priority of the setting information for the first always-on signal is higher than the priority of the setting information for the second always-on signal.
28. In at least one computer readable medium comprising instructions based on being executed by at least one processor, the computer readable medium comprising:

    Control the transceiver to receive the DRX (Discontinuous Reception) configuration information from the base station, and

    Performing an operation including performing the DRX operation based on the DRX configuration information,

    The DRX operation cycle includes an active time and a sleep time,

    The at least one processor is configured to control the transceiver to receive configuration information for an always on signal from the base station,

    The setting information for the always-on signal includes beam information, and

    And the at least one processor is configured to control the transceiver to receive the always-on signal at the sleep time based on the setting information for the always-on signal.
29. 29. The recording medium of claim 28, wherein the beam information includes information on a spatial quasi-colocation (QCL) of the always-on signal.
30. The beam sweeping is applied to the always-on signal according to claim 28,

    The beam information further comprises information on the order of the swept beams.
31. The recording medium according to claim 28, wherein the setting information for the always-on signal includes resource information to which the always-on signal is transmitted.
32. The method of claim 31, wherein the resource information includes information about the time domain,

    The information on the time domain comprises at least one of a duration (duration), an offset (offset), and a period (periodicity).
33. 32. The method of claim 31, wherein the resource information includes information about the frequency domain,

    The information on the frequency domain includes at least one of offset and occupied bandwidth.
34. 29. The recording medium of claim 28, wherein the at least one processor is configured to perform transmission or reception at the active time, and the terminal is configured not to perform transmission and reception at the sleep time.
35. 29. The recording medium of claim 28, wherein the at least one processor is configured to control the transceiver to receive configuration information for the always-on signal through terminal-specific signaling or cell-specific signaling.
36. 36. The method of claim 35, wherein the at least one processor is configured to control the transceiver to receive configuration information for the first always-on signal through the terminal-specific signaling and the second always-on signal through the cell-specific signaling It is configured to control the transceiver to receive the setting information for,

    The priority of the setting information for the first always-on signal is higher than the priority of the setting information for the second always-on signal.
37. A method for transmitting an always on signal performed by a base station in a wireless communication system,

    DRX (Discontinuous Reception) configuration information is transmitted to the terminal,

    Transmitting configuration information on the always-on signal to the terminal; And

    Transmit the always-on signal to the terminal,

    The method of claim 1, wherein the setting information for the always-on signal includes beam information.
38. 38. The method of claim 37, wherein the beam information includes information on a spatial quasi-colocation (QCL) of the always-on signal.
39. The beam sweeping is applied to the always-on signal according to claim 37,

    The beam information further comprises information about the order of the swept beams.
40. The method of claim 37, wherein the setting information for the always-on signal includes resource information on which the always-on signal is transmitted.
41. 41. The method of claim 40, wherein the resource information includes information about the time domain,

    The information on the time domain is characterized in that it comprises at least one of duration (duration), offset (offset), period (periodicity).
42. 41. The method of claim 40, wherein the resource information includes information about the frequency domain,

    The information on the frequency domain comprises at least one of offset, occupied bandwidth.
43. The method of claim 37, wherein the base station transmits configuration information for the always-on signal through terminal-specific signaling or cell-specific signaling.
44. 38. The method of claim 37, wherein the always-on signal is composed of dummy data based on the absence of a signal to be scheduled by the base station to the terminal.
45. The base station,

    Transceiver;

    At least one memory; And

    And at least one processor operatively coupled to the at least one memory and the transceiver, the processor comprising:

    DRX (Discontinuous Reception) configuration information is transmitted to the terminal,

    Transmitting configuration information on the always-on signal to the terminal; And

    Transmit the always-on signal to the terminal,

    The base station, characterized in that the configuration information for the always-on signal includes beam information.
46. The base station according to claim 45, wherein the beam information includes information on a spatial quasi-colocation (QCL) of the always-on signal.
47. The beam sweeping is applied to the always-on signal.

    The beam information further comprises information about the order of the swept beams.
48. The base station according to claim 45, wherein the setting information for the always-on signal includes resource information on which the always-on signal is transmitted.
49. 49. The method of claim 48, wherein the resource information includes information about the time domain,

    The information on the time domain is a base station, characterized in that it includes at least one of a duration (duration), an offset (offset), and a period (periodicity).
50. The method of claim 48, wherein the resource information includes information on the frequency domain,

    The information on the frequency domain includes at least one of offset and occupied bandwidth.
51. The base station according to claim 45, wherein the base station transmits configuration information for the always-on signal through terminal-specific signaling or cell-specific signaling.
52. The base station according to claim 45, wherein the always-on signal is composed of dummy data based on the absence of a signal to be scheduled by the base station to the terminal.

Images