KR20220168941A - An user equipment including a plurality of antenna panels and communication system including same - Google Patents

Abstract

User equipment for performing communication with an apparatus according to one aspect of the technical idea of the present disclosure comprises: a first antenna panel; a second antenna panel; and a controller configured to control the first and second antenna panels, wherein the controller is configured to perform an uplink panel change to turn the second antenna panel on so as to be changed from a first transmission beam of the first antenna panel turned on to a second transmission beam of the second antenna panel turned off based on signaling related to changing an uplink panel with the apparatus.

Description

User equipment including a plurality of antenna panels and communication system including the same

The technical idea of the present disclosure relates to wireless communication, and more particularly, to a user device including a plurality of antenna panels and a communication system including the same.

In order to expand beam management in the 3GPP New Radio (NR) standard, a method of changing a beam using Downlink Control Information (DCI) or the like is under discussion. If the user device includes a plurality of antenna panels but cannot use them simultaneously, the user device may need to turn off the currently selected antenna panel and turn on another antenna panel when changing (or switching) the antenna panel. In this process of changing the antenna panel, a gap may occur in which communication is temporarily impossible for the user device. A communication failure due to a change in the antenna panel may adversely affect the communication performance of the user device. A communication technology is required to overcome these adverse effects.

An object to be solved by the technical idea of the present disclosure is to provide a user device for ensuring stable communication performance when an uplink panel is changed in a user device, a communication system including the same, and a method of operating the user device.

In order to achieve the above object, a user equipment that communicates with a device according to one aspect of the technical idea of the present disclosure includes a first antenna panel, a second antenna panel, and the first and second antenna panels. and a controller configured to control the second antenna panel that is turned off in a first transmission beam of the first antenna panel that is turned on based on signaling related to an uplink panel change with the device. It is characterized in that it is configured to perform an uplink panel change to turn on the second antenna panel to change to the second transmit beam of the antenna panel.

A communication system according to another aspect of the technical idea of the present disclosure includes a user device including a plurality of antenna panels and a device that communicates with the user device, and the user device performs signaling related to uplink panel change with the device. To perform and change at least one first antenna panel turned on among the plurality of antenna panels to at least one second antenna panel turned off among the plurality of antenna panels based on the signaling related to the uplink panel change. It is characterized in that it is configured to perform an uplink panel change to turn on the at least one second antenna panel.

According to another aspect of the technical idea of the present disclosure, a method of operating a user device that performs communication with a device by selectively using at least one of a plurality of antenna panels includes performing uplink panel change-related signaling with the device. and the at least one to change at least one first antenna panel turned on among the plurality of antenna panels to at least one second antenna panel turned off among the plurality of antenna panels based on the signaling related to the uplink panel change. and performing an uplink panel change to turn on one second antenna panel.

A user device according to an exemplary embodiment of the present disclosure performs prearranged signaling with a base station and performs uplink panel change for a plurality of antenna panels based on the signaling, thereby resulting in gaps caused by uplink panel change. Deterioration of communication performance can be minimized.

Effects obtainable in the exemplary embodiments of the present disclosure are not limited to the effects mentioned above, and other effects not mentioned are common knowledge in the art to which exemplary embodiments of the present disclosure belong from the following description. can be clearly derived and understood by those who have That is, unintended effects according to the implementation of the exemplary embodiments of the present disclosure may also be derived by those skilled in the art from the exemplary embodiments of the present disclosure.

1 is a block diagram illustrating a wireless communication system according to an exemplary embodiment of the present disclosure.
2A and 2B are block diagrams illustrating user equipment according to exemplary embodiments of the present disclosure.
3 is a flowchart illustrating a method of operating a base station and a user equipment according to an exemplary embodiment of the present disclosure.
4A is a flowchart illustrating a detailed operating method of the base station related to step S120 of FIG. 3, and FIGS. 4B and 4C are diagrams showing an example of using an uplink panel to help understand the embodiment of FIG. 4A.
5 is a flowchart illustrating a method of operating a base station and a user equipment according to an exemplary embodiment of the present disclosure.
6A is a diagram illustrating information stored in a memory of a base station according to an exemplary embodiment of the present disclosure, FIG. 6B is a flowchart illustrating a method of operating the base station using the panel-beam group information of FIG. 6A, and FIG. 6C is It is a flowchart for explaining a method of operating a base station using SRS resource set information of FIG. 6A.
FIG. 7A is a flowchart for specifically explaining a method of operating a base station and user equipment in step S120 of FIG. 3, and FIGS. 7B to 7D are diagrams for explaining an uplink panel change timing of the user equipment.
8A is a diagram illustrating information stored in a memory of a base station according to an exemplary embodiment of the present disclosure, FIGS. 8B and 8C are diagrams for explaining a carrier component (CC) group in FIG. 8A, and FIG. It is a flowchart for explaining the operation method of the base station and user equipment using the CC group information of 8a.
9 is a flowchart illustrating a method of operating a base station and a user equipment according to an exemplary embodiment of the present disclosure.
10A and 10B are flowcharts for explaining steps S342 and S343 in FIG. 9 in detail.
11 is a flowchart illustrating a method of operating a base station and a user equipment according to an exemplary embodiment of the present disclosure.
12A and 12B are flowcharts for explaining steps S345 and S346 in FIG. 11 in detail.
13 is a diagram for explaining an embodiment in which uplink panel change is performed after DCI required for PUSCH transmission is received.
FIG. 14 is a flowchart for explaining a method of coexisting a base station and a user equipment in the embodiment of FIG. 13 .
15 is a flowchart illustrating a method of operating a base station and user equipment according to an exemplary embodiment of the present disclosure.
16 is a flowchart for explaining steps S334 and S335 of FIG. 15 in detail.
17 is a block diagram illustrating an electronic device according to an exemplary embodiment of the present disclosure.
18 is a conceptual diagram showing an IoT network system to which an exemplary embodiment of the present disclosure is applied.

1 is a block diagram illustrating a wireless communication system 5 according to an exemplary embodiment of the present disclosure. The wireless communication system includes, as non-limiting examples, a 5th generation wireless (5G) system, a Long Term Evolution (LTE) system, an LTE-Advanced system, a Code Division Multiple Access (CDMA) system, a Global System for Mobile Communications (GSM) system, and the like. It may be a wireless communication system using the same cellular network, a Wireless Personal Area Network (WPAN) system, or any other wireless communication system. In the following, a wireless communication system will be described with reference primarily to a wireless communication system using a cellular network, but it will be understood that exemplary embodiments of the present disclosure are not limited thereto.

A base station (BS) 1 may generally refer to a fixed station that communicates with user equipment and/or other base stations, thereby providing data and control information. can be exchanged. For example, the base station 1 includes a Node B, an evolved-Node B (eNB), a Next Generation Node B (gNB), a Sector, a Site, a Base Transceiver System (BTS), and an Access Pint (AP) , a relay node, a remote radio head (RRH), a radio unit (RU), a small cell, or a device. In this specification, a base station or cell is a comprehensive meaning indicating some area or function covered by a Base Station Controller (BSC) in CDMA, Node-B in WCDMA, eNB in LTE, gNB or sector (site) in 5G, etc. , and can cover various coverage areas such as megacells, macrocells, microcells, picocells, femtocells, relay nodes, RRHs, RUs, and small cell communication ranges.

A user equipment (UE) 10 may be fixed or mobile, and may refer to any devices capable of transmitting and receiving data and/or control information by communicating with a base station, for example, the base station 1 . For example, the user device 10 includes a terminal, terminal equipment, a mobile station (MS), a mobile terminal (MT), a user terminal (UT), a subscribe station (SS), and a wireless communication device ( It may be referred to as a wireless communication device, a wireless device, a handheld device, and the like. In the following, exemplary embodiments of the present disclosure will be described mainly with reference to user equipment 10 as a wireless communication device, but it will be understood that exemplary embodiments of the present disclosure are not limited thereto.

A wireless communication network between user equipment 10 and base station 1 can support multiple users to communicate by sharing available network resources. For example, in a wireless communication network, code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), orthogonal frequency division multiple access (OFDMA), and single carrier frequency division multiplexing (SC-FDMA) Access), OFDM-FDMA, OFDM-TDMA, OFDM-CDMA, etc., information can be transmitted through various multiple access schemes. As shown in FIG. 1 , the user equipment 10 may mutually communicate with the base station 1 through UpLink (UL) and DownLink (DL). In some embodiments, like Device-to-Device (D2D), user devices may communicate with each other through a sidelink, and the technical concept of the present disclosure may also be applied in this case.

Referring to FIG. 1 , the user device 10 may include first to g-th (where g is an integer greater than or equal to 2) antenna panels 11_1 to 11_g and a controller 12 . In this specification, an antenna panel is referred to as a panel, and when the user equipment 10 transmits an uplink signal, the antenna panel may be referred to as an uplink panel.

As an exemplary embodiment, each of the first to g-th antenna panels 11_1 to 11_g may include a plurality of antenna elements. In some embodiments, each of the first to g-th antenna panels 11_1 to 11_g may include antenna arrays composed of a plurality of antenna elements. An antenna array may be referred to as a phased array. As an exemplary embodiment, the first to g antenna panels 11_1 to 11_g may be spaced apart from each other and disposed in an area capable of providing optimal communication performance, and the first to g antenna panels 11_1 ~11_g) can be packaged independently.

As an exemplary embodiment, the controller 12 may control overall communication operations of the user device 10 . For example, the controller 12 controls on/off of the plurality of antenna panels 11_1 to 11_g, forms a transmission beam or a reception beam through at least one turned-on antenna panel, and uses the formed transmission beam or reception beam. It is possible to perform communication with the base station 1 by using. Depending on the implementation of the user device 10, all of the plurality of antenna panels 11_1 to 11_g are turned on and used for communication, or some of the plurality of antenna panels 11_1 to 11_g are turned on and others are turned off and turned on. At least one antenna panel may be used for communication.

Meanwhile, in performing communication with the base station 1 using the plurality of antenna panels 11_1 to 11_g, the user device 10 depends on various cases such as implementation of the user device 10 or beam change. An operation to change the antenna panel may be required. In this specification, changing an antenna panel is an operation of forming a new beam by switching an antenna panel previously selected and forming a beam to another antenna panel, and may be defined as further including an operation of turning on another antenna panel that has been turned off. In some embodiments, changing the antenna panel may further include an operation of turning off a previously selected antenna panel forming a beam, but this may not be essential. That is, the user equipment 10 can selectively turn off an antenna panel that is turned on but is not being used.

For example, when the user device 10 is implemented to simultaneously turn on the plurality of antenna panels 11_1 to 11_g and use them for communication, it may not be necessary to change the antenna panel, but the user device 10 may not need to change the plurality of antenna panels. If only some of the (11_1 to 11_g) are turned on and used for communication, it may be necessary to change the antenna panel. When the user device 10 performs the antenna panel change, a blank section of the antenna panel may occur until the antenna panel is changed to a target antenna panel, and the blank section may cause degradation of communication performance of the user device 10 . In this specification, the blank section may be referred to as a gap or may be referred to as an antenna panel change gap.

The technical idea of the present disclosure is to provide previously agreed signaling between a user device 10 and a base station 1 in order to minimize deterioration of communication performance due to a gap that occurs when changing an antenna panel of a user device 10, and based on this It is about performing an antenna panel change. The technical concept of the present disclosure may be defined as a standard specification of Release-17 related to New Radio (NR) distributed by the ^3rd Generation Partnership Project (3GPP). However, this is an exemplary embodiment and is not limited thereto, and it is clear that the technical idea of the present disclosure can be applied to other communication networks in addition to NR.

As an exemplary embodiment, the controller 12 may perform antenna panel change based on antenna panel change related signaling with the base station 1 . Hereinafter, an embodiment in which the user equipment 10 performs an antenna panel change to effectively transmit an uplink signal to the base station 1 will be described. In this case, the antenna panel is an uplink panel and the antenna panel change is an uplink panel. It may be referred to as a link panel change.

As an exemplary embodiment, the controller 12 may include a hardware block designed through logic synthesis, and may include a processing block including a software module including a series of instructions and a processor executing the same. Controller 12 may also be referred to as a communications processor, baseband processor, modem, or the like.

The user equipment 10 according to an exemplary embodiment of the present disclosure performs prearranged signaling with the base station 1, and performs uplink panel change for a plurality of antenna panels 11_1 to 11_g based on the signaling. Accordingly, it is possible to minimize degradation of communication performance due to a gap generated by changing an uplink panel.

2A and 2B are block diagrams illustrating user equipment 200a and 200b according to exemplary embodiments of the present disclosure.

Referring to FIG. 2A , a user device 200a may include first to fourth antenna panels 210a to 240a. As an exemplary embodiment, the first to fourth antenna panels 210a to 240a may be disposed at edges of the user device 200a, respectively. However, since this is merely an exemplary embodiment, the number and arrangement of antenna panels included in the user device 200a may vary.

As an exemplary embodiment, the first antenna panel 210a may include a plurality of antenna elements arranged in a matrix form of N (where N is an integer greater than or equal to 1) X M (where M is an integer greater than or equal to 1). The embodiment of the first antenna panel 210a may be applied to the second to fourth antenna panels 220a to 240a.

As an exemplary embodiment, only some of the first to fourth antenna panels 220a to 240a may be turned on, and communication with the base station 1 ( FIG. 1 ) may be performed using some of them, while the others are turned off. It can be. The user device 200a performs communication by individually turning on/off the first to fourth antenna panels 220a to 240a according to an embodiment, or sets the first to fourth antenna panels 220a to 240a in pairs. Communication may be performed by turning on/off or by turning on/off the first to fourth antenna panels 220a to 240a all at once.

For example, the user device 200a may perform communication using the first antenna panel 210a, and at this time, the second to fourth antenna panels 220a to 240a may be turned off. Antenna panel change from the first antenna panel 210a to the second antenna panel 220a may be performed, which may be based on signaling between the user equipment 200a and the base station 1 ( FIG. 1 ).

As another example, the user device 200a may perform communication using the first and second antenna panels 210a and 220a, and at this time, the third and fourth antenna panels 230a and 240a may be turned off. there is. Antenna panel change from the first and second antenna panels 210a and 220a to the third and fourth antenna panels 230a and 240a may be performed, which is a communication between the user device 210a and the base station 1 ( FIG. 1 ). It can be based on signaling.

As another example, the user device 200a may perform communication using the first to fourth antenna panels 210a to 240a, and in this case, a change of the antenna panel may not be necessary.

Referring further to FIG. 2B , the user device 200b may include first to fourth antenna panels 210b to 240b. As an exemplary embodiment, the first and second antenna panels 210b and 220b include a plurality of antenna elements arranged in an N X M matrix, and the third and fourth antenna panels 230b and 240b have L (where, L is an integer greater than or equal to 1 X K (where K is an integer greater than or equal to 1) may include a plurality of antenna elements arranged in a matrix form. Specifically, configurations of the first and second antenna panels 210b and 220b may be different from configurations of the third and fourth antenna panels 230b and 240b. The user device 200b may provide optimal communication performance by using the first to fourth antenna panels 210b to 240b in various ways.

It is clear that the technical idea of the present disclosure can be applied to user devices 200a and 200b shown in FIGS. 2A and 2B as well as user devices having configuration examples and arrangement examples of various antenna panels.

3 is a flowchart illustrating an operation method of the base station 300 and the user equipment 310 according to an exemplary embodiment of the present disclosure.

Referring to FIG. 3 , in step S100, the user device 310 may transmit its own panel-related performance information to the base station 300. As an exemplary embodiment, the panel-related performance information may include whether or not an uplink panel of the user device 310 needs to be changed, the number of antenna panels included in the user device 310, and the number of antenna panels that can be used simultaneously by the user device 310. It may include information on at least one of the maximum number, whether or not a gap has occurred for changing the uplink panel of the user device 310, and the length of the gap. That is, the panel-related performance information may include whether the user device 310 performs an uplink panel change, information about the length of an uplink panel change gap, and the like, and the base station 300 determines the panel of the user device 310 Signaling corresponding to the related capability information may be performed with the user device 310 . Through this, the base station 300 can easily recognize whether the user equipment 310 performs the uplink panel change, anticipate communication failure of the user equipment 310 in the uplink panel change gap, and make an appropriate Actions can be actively performed. In some embodiments, when the user equipment 310 does not transmit panel-related performance information to the base station 300 or when the user equipment 310 performs a communication operation by turning on all of the plurality of antenna panels, the base station ( Signaling for uplink panel change in 300) may be skipped.

In step S102, the base station 300 may set an uplink panel change gap for the user equipment 310 based on the panel related performance information. As an exemplary embodiment, the base station 300 may configure the length and timing of the uplink panel change gap based on panel-related performance information of the user device 310 .

In step S110, the base station 300 may monitor whether or not the uplink panel of the user equipment 310 needs to be changed. As an exemplary embodiment, the base station 300 may monitor whether a transmission beam for transmission of an uplink signal of the user device 310 is changed, and check an uplink panel corresponding to the transmission beam to be changed. The base station 300 may recognize that the uplink panel of the user equipment 310 needs to be changed when the confirmed uplink panel is different from the previous uplink panel.

In step S120, the base station 300 may transmit an uplink panel change signal to the user equipment 310 based on the result of step S110. In an exemplary embodiment, the uplink panel change signal may include at least one of a start time point, an end time point, and a length of a gap based on which the user device 310 performs the uplink panel change. As an exemplary embodiment, the base station 300 may transmit an uplink panel change signal to the user device 310 through Radio Resource Control (RRC) signaling with the user device 310 . As another exemplary embodiment, the base station 300 may transmit an uplink panel change signal to the user device 310 through downlink control information (DCI) signaling or media access control (MAC) signaling with the user device 310. . As another exemplary embodiment, the base station 300 transmits RRC signaling to information included in an uplink panel change signal (eg, including at least one of a start time, an end time, and a gap length) of a gap. Candidates may be notified to the user equipment 310, and the user equipment 310 may select one of the candidates through DCI signaling or MAC signaling. However, these embodiments are merely illustrative examples, and various uplink methods are used so that the base station 300 can smoothly acquire information necessary for the user equipment 310 to perform the uplink panel change. A panel change signal can be transmitted. A detailed embodiment of step S120 will be described later with reference to FIGS. 4A to 4C.

In step S130, the user device 310 may perform uplink panel change in response to the uplink panel change signal. As an exemplary embodiment, the user device 310 may perform an uplink panel change corresponding to the start time and end time of the gap included in the uplink panel change signal and the length of the gap. A detailed embodiment of step S130 will be described later with reference to FIGS. 7A to 7D. In addition, in step S130, the gap generated by the uplink panel change of the user equipment 310 overlaps with the reception time of the downlink signal from the base station 300 or the transmission time of the uplink signal of the user equipment 310. can Details of a method of operating the user device 310 according to exemplary embodiments of the present disclosure at this time will be described later with reference to FIGS. 9 to 10B, 12A and 12B.

In step S140, the user device 310 may perform signaling with the base station 300 according to the uplink panel change. That is, the user equipment 310 can transmit an uplink signal to the base station 300 using a transmission beam formed from the changed uplink panel, and the base station 300 receives a signal corresponding to the transmission beam of the user equipment 310. An uplink signal may be received using a beam. In addition, the base station 300 may transmit a downlink signal to the user equipment 310 with a transmission beam corresponding to a current reception beam, and the user equipment 310 may transmit a reception beam corresponding to the transmission beam of the base station 300. A downlink signal can be received using

4A is a flowchart illustrating a detailed operating method of the base station related to step S120 of FIG. 3, and FIGS. 4B and 4C are diagrams showing an example of using an uplink panel to help understand the embodiment of FIG. 4A.

Referring to FIG. 4A , in step S121, the base station may receive beam group information from user equipment. As an exemplary embodiment, the beam group information may be information generated in a process of determining a transmission beam or a reception beam for communication with a base station in a user device. For example, the beam group information includes information on transmission beams or reception beams that can be formed for each antenna panel of the user equipment or for each antenna panel used at the same time, and mapping information between beams of the base station and beams of the user equipment. can do. In some embodiments, the transmission beam and the reception beam may be the same in consideration of channel reciprocity, and the beam group information may include information on beams that can be formed for each antenna panel of the user equipment or for each antenna panel used simultaneously. . Hereinafter, beam group information is described on the premise that the transmit beam and the receive beam of the user device are the same based on channel reciprocity. However, since this is only an exemplary embodiment, the technical idea of the present disclosure may be applied to an embodiment in which channel reciprocity is not applied, but is not limited thereto.

In step S122, the base station may change a transmission beam for transmitting a downlink signal to the user equipment. As an exemplary embodiment, the base station may change a transmission beam based on a downlink channel state between user devices.

In step S123, the base station may determine whether or not the uplink panel of the user equipment needs to be changed according to step S122. When changing the transmission beam, the base station can check whether the user equipment needs to change the reception beam so that the user equipment can smoothly receive the downlink signal from the beam group information. Specifically, the base station checks the received beam of the user equipment side that is mapped to the changed transmit beam from the beam group information, and the uplink panel corresponding to the checked received beam and the same transmit beam of the user equipment side is the previous uplink panel. It can be checked from the beam group information whether it is different from .

When step S123 is 'YES', following step S124, the base station may generate an uplink panel change signal. The uplink panel change signal may be the uplink panel change signal of step S120 of FIG. 3 . When step S123 is 'NO', subsequent to step S125, the base station may generate a reception beam related signal corresponding to the changed transmission beam. The base station may transmit the signal related to the reception beam generated in step S140 to the user device, and the user device may change the reception beam in response thereto.

4B, the first uplink panel and the second uplink panel are simultaneously unavailable, and the first beam group information of the first uplink panel indicates the eleventh to s1th beams (Beam_11 to Beam_s1). information, and the second beam group information of the second uplink panel may include information indicating the twelfth to t2th beams (Beam_12 to Beam_t2).

For example, the second uplink panel of the user equipment is turned off and the first uplink panel is turned on to form the 11th transmission beam Beam_11, and in case 'A1', the 21st transmission beam Beam_11 When the beam is changed to the transmission beam (Beam_21), the on state of the first uplink panel is maintained, and the base station may not provide an uplink panel change signal to the user equipment.

As another example, the second uplink panel of the user equipment is turned off, and the first uplink panel is turned on to form the 11th transmission beam Beam_11, and in case 'B1', the 12th transmission beam Beam_11 When changing to the transmission beam (Beam_12), since a change from the first uplink panel to the second uplink panel is required, the base station may provide an uplink panel change signal to the user equipment. The user device may turn on the second uplink panel in response to the uplink panel change signal to form a twelfth transmission beam (Beam_12). In some embodiments, the user equipment may turn off the first uplink panel in response to the uplink panel change signal.

Referring further to FIG. 4C , the first uplink panel and the second uplink panel are simultaneously available, the third uplink panel and the fourth uplink panel are simultaneously available, and the first uplink panel and the second uplink panel are available simultaneously. The link panel may be unavailable at the same time as the third uplink panel and the fourth uplink panel. The third beam group information of the first uplink panel and the second uplink panel includes information indicating the thirteenth to p3th beams (Beam_13 to Beam_v3), and the third beam group information of the third uplink panel and the fourth uplink panel The 4-beam group information may include information pointing to the 14th to w4th beams (Beam_14 to Beam_w4).

For example, the third uplink panel and the fourth uplink panel of the user equipment are turned off, and the first uplink panel and the second uplink panel are turned on to form a 13th transmission beam (Beam_13), 'A2'. In this case, when the 13th transmission beam (Beam_13) is changed to the 33rd transmission beam (Beam_33), the on state of the first uplink panel and the second uplink panel is maintained, and the base station informs the user equipment that the uplink panel is changed. may not provide a signal.

As another example, the third uplink panel and the fourth uplink panel of the user equipment are turned off, and the first uplink panel and the second uplink panel are turned on to form the 13th transmission beam (Beam_13), 'B2' In the case where the 13th transmission beam (Beam_13) is changed to the 14th transmission beam (Beam_14), it is necessary to change from the 1st uplink panel and the 2nd uplink panel to the 3rd uplink panel and the 4th uplink panel. Bar, the base station may provide an uplink panel change signal to the user equipment. The user device may turn on the third and fourth uplink panels in response to the uplink panel change signal to form a fourteenth transmission beam (Beam_14). In some embodiments, the user equipment may turn off the first uplink panel and the second uplink panel in response to the uplink panel change signal.

5 is a flowchart illustrating an operation method of the base station 300 and the user equipment 310 according to an exemplary embodiment of the present disclosure.

Referring to FIG. 5 , in step S200, the user device 310 may change a transmission beam based on an uplink channel state with the base station 300 by itself. Then, in step S210, the user device 310 may transmit an uplink transmission beam change notification signal to the base station 300. For example, the user equipment 310 may transmit an uplink transmission beam change notification signal to the base station 300 based on CSI transmission signaling. As another example, the user device 310 uses an SRS resource set corresponding to a transmission beam to be changed among the SRS (Sounding Reference Signal) resource sets configured by the base station 300 to use the SRS as an uplink transmission beam change notification signal. ) can be transmitted. At this time, the base station 300 can recognize the transmission beam to be changed of the user equipment 310 from the SRS resource set through which the SRS is transmitted. As an exemplary embodiment, the uplink transmission beam change notification signal may include at least one of a signal indicating the changed transmission beam of the user device 310 and a signal indicating an end point of the transmission beam change of the user device 310. there is.

In step S220, the base station 300 may check the uplink panel change from the uplink transmission beam change notification signal. For example, the base station 300 may recognize an uplink panel corresponding to a changed transmission beam from an uplink transmission beam change notification signal to confirm an uplink panel change. In addition, the base station 300 may recognize the end point of the transmission beam change from the uplink transmission beam change notification signal and reflect it when performing step S230 to be described later.

In step S230, the user device 310 may perform signaling with the base station 300 according to the uplink panel change. That is, the user equipment 310 can transmit an uplink signal to the base station 300 using a transmission beam formed from the changed uplink panel, and the base station 300 receives a signal corresponding to the transmission beam of the user equipment 310. An uplink signal may be received using a beam.

FIG. 6A is a diagram illustrating information stored in the memory 301 of the base station according to an exemplary embodiment of the present disclosure, and FIG. 6B shows a method of operating the base station 300 using the panel-beam group information 301_1 of FIG. 6A. 6C is a flowchart for explaining an operating method of the base station 300 using the SRS resource set information 301_2 of FIG. 6A.

Referring to FIG. 6A , at least one of panel-beam group information 301_1 and SRS resource set information 301_2 may be stored in the memory 301 of the base station. Meanwhile, at least one of panel-beam group information 301_1 and SRS resource set information 301_2 may also be stored in the memory of the user equipment. That is, the base station and user equipment may share at least one of mutual panel-beam group information 301_1 and SRS resource set information 301_2. The panel-beam group information 301_1 may include information indicating beam groups BG_1, BG_2, ?? corresponding to each of the plurality of uplink panels P1, P2, ?? of the user device. For example, the first beams included in the first beam group BG_1 can be formed on the first panel P1 of the user device, and the second beams included in the second beam group BG_2 can be formed on the second panel P2. Beams may be formable.

Referring further to FIG. 6B , in step S311a, the user equipment 310 may transmit a signal indicating the changed uplink transmission beam. The signal indicating the uplink transmission beam to be changed may be included in the uplink transmission beam change notification signal of step S210 of FIG. 5 .

In step S321a, the base station 300 may check the uplink panel corresponding to the changed uplink transmission beam from the panel-beam group information 301_1. For example, when the changed uplink transmission beam is included in the second beam group BG_2, the base station 300 may check the second uplink panel P2 corresponding to the changed uplink transmission beam. In step S322a, the base station 300 may check whether the uplink panel is changed based on the check result. For example, the base station 300 may determine whether the uplink panel is changed based on whether the confirmed second uplink panel P2 and the current uplink panel are the same or different.

Referring back to FIG. 6A, the SRS resource set information 301_2 may include information indicating beam groups (BG_1, BG_2, ??) corresponding to each of the plurality of SRS resource sets (RS1, RS2, ??). . As an example, the user equipment transmits the SRS through the first SRS resource set RS1 to notify the base station of the change to the first transmission beam B1, and to notify the base station of the change to the second transmission beam B2. SRS can be transmitted through 2 SRS resource sets (RS2).

Referring further to FIG. 6C , in step S311b, the user equipment 310 may transmit the SRS through the changed resource set. The SRS transmitted through the changed resource set may be included in the uplink transmission beam change notification signal of step S210 of FIG. 5 .

In step S321b, the base station 300 may check the uplink transmission beam corresponding to the changed resource set from the SRS resource set information. For example, when the uplink transmission beam to be changed is the second transmission beam (B2), the base station 300 receives the SRS from the user device 310 through the second SRS resource set (RS2), and the uplink transmission to be changed It can be confirmed that the beam is the second transmission beam B2.

In step S322b, the base station 300 may check an uplink panel corresponding to the transmission beam identified from the panel-beam group information. For example, the base station 300 may check the second uplink panel P2 corresponding to the uplink transmission beam to be changed when the checked second transmission beam B2 is included in the second beam group BG_2. there is. In step S323b, the base station 300 may check whether the panel has been changed based on the check result. For example, the base station 300 may determine whether the uplink panel is changed based on whether the confirmed second uplink panel P2 and the current uplink panel are the same or different.

7A is a flowchart for explaining in detail the operation method of the base station 300 and the user device 310 in step S120 of FIG. 3, and FIGS. it is a drawing

Referring to FIG. 7A , in step S321, the base station 300 may transmit an uplink panel change gap indication signal to the user equipment 310. As an exemplary embodiment, the uplink panel change gap indication signal may include at least one of a start point, an end point, and a length of the gap.

In step S331, the user equipment 310 may transmit an ACK signal notifying that the uplink panel change gap indication signal has been received to the base station 300. In step S332, the user device 310 may change the uplink panel after a predetermined time from the transmission time of the ACK signal. In step S341, the base station 300 may check the uplink panel change of the user equipment 310 based on the ACK signal.

Referring further to FIG. 7B , while performing communication with the base station 300 by forming an old uplink transmission beam on a first uplink panel, the user device 310 transmits an uplink link from the base station 300 at a time 'tr'. A panel change instruction signal may be received. The user equipment 310 may transmit an ACK signal to the base station 300 at a time 'tr+k1' after a first time k1 from the time 'tr'. The user device 310 may start changing to the second uplink panel at the time 'tr+k1+k2' after the second time (k2) from the time 'tr+k1'. In this specification, an uplink panel change start may be defined as a gap start. The user equipment 310 may perform an uplink panel change during the length L of the uplink panel change gap, and form a new uplink transmission beam in the second uplink panel. In this specification, an uplink panel change end may be defined as a gap end. In addition, the user device 310 may provide the base station 300 with a signal notifying that the uplink panel has been changed.

As an exemplary embodiment, at least one of a gap start, a gap end, and a length L of the gap may be included in the uplink panel change gap indication signal of FIG. 7A . In addition, the length L of the gap may be an absolute value (eg, millisecond unit) or may have a unit such as a symbol or a slot. In some embodiments, the base station 300 may generate an uplink panel change gap indication signal based on the number of antenna panels of the user equipment 310 or the maximum number of simultaneously available antenna panels. In some embodiments, base station 300 may generate an uplink panel change gap indication signal based on information about a time required for uplink panel change received from user device 310 .

As an exemplary embodiment, the base station 300 may preset at least one of the first time k1 and the second time k2 based on the performance of the user device 310 . For example, the base station 300 may set the first time k1 and the second time k2 based on the number of antenna panels of the user device 310 and a method of using the antenna panels. As an exemplary embodiment, the base station 300 sets a value (eg, the first time k1 or the second time k2) to the user equipment 310 through RRC signaling, MAC signaling, or DCI signaling. can provide. In some embodiments, the user device 310 may independently set the first time k1 and the second time k2 based on its performance.

As an exemplary embodiment, the user equipment 310 transmits an ACK signal to the base station 300 through a first resource (Resource #1) to inform the base station 300 that an uplink panel change is performed, or a first sequence An ACK signal having (Sequence #1) may be transmitted to the base station 300. The base station 300 recognizes that the user equipment 310 performs an uplink panel change operation based on the ACK signal received through the first resource (Resource #1), or has a first sequence (Sequence #1). Based on the ACK signal, it may be recognized that the user device 310 performs an uplink panel change operation.

Referring further to FIG. 7C, the user equipment 310 transmits an ACK signal to the base station 300 through a second resource (Resource #2) to inform the base station 300 that the uplink panel change is not performed, or An ACK signal having a second sequence (Sequence #2) may be transmitted to the base station 300 . The base station 300 recognizes that the user equipment 310 does not perform an uplink panel change operation based on the ACK signal received through the second resource (Resource #2), or transmits the second sequence (Sequence #2). Based on the ACK signal, it may be recognized that the user equipment 310 does not perform the uplink panel change operation.

Referring further to FIG. 7D, unlike FIG. 7C, the user equipment 310 sends an ACK signal to the base station 300 to inform the base station 300 that the uplink panel change is not performed, from the 'tr' time point at which the uplink panel change indication signal is received. An ACK signal may be transmitted to the base station 300 at the time of 'tr+k3' after the third time k3.

As an exemplary embodiment, the base station 300 recognizes that the uplink panel change operation is performed based on the ACK signal transmitted from the user equipment 310 at the time 'tr+k1' as shown in FIG. 7b, and 'tr+k1'. It can be recognized that the uplink panel change operation is not performed based on the ACK signal transmitted from the user device 310 at the time point k3'.

As an exemplary embodiment, the base station 300 attempts to decode the PUCCH at times corresponding to the first time k1 and the third time k3 in order to detect the ACK signal received from the user equipment 310 can do. When the base station 300 confirms that the ACK signal is transmitted at the time 'tr+k1' as a result of decoding the PUCCH, the base station 300 can recognize that the user equipment 310 has performed the uplink panel change, and at the time 'tr+k3' When confirming that the ACK signal is transmitted, it may be recognized that the user device 310 did not perform the uplink panel change.

However, the embodiments of FIGS. 7B to 7D are merely exemplary embodiments, and are not limited thereto. In various ways, the user device 310 transmits an ACK signal to the base station 300 to determine whether or not an uplink panel change is performed. can inform

8A is a diagram illustrating information stored in a memory 301 of a base station according to an exemplary embodiment of the present disclosure, and FIGS. 8B and 8C are diagrams for explaining a carrier component (CC) group in FIG. 8A, FIG. 8c is a flowchart for explaining a method of operating the base station 300 and the user equipment 310 using the CC group information of FIG. 8a.

Referring to FIG. 8A , CC group information 301_3 may be stored in the memory 301 . Meanwhile, CC group information 301_3 may also be stored in the memory of the user device. That is, the base station and the user equipment can share CC group information 301_3 with each other. The CC group information 301_3 may include information indicating component carriers (CCs) corresponding to each of the plurality of CC groups (CG_1, CG_2, ??). For example, the first CC group (CG_1) includes the 11th CC to the 1x CC (CC_11 to CC_1x), and the second CC group (CG_2) includes the 21st CC to the 2y CC (CC_21 to CC_2y). can

Referring further to FIG. 8B, in the NR-related communication system, between 410 (MHz) and 7125 (MHz) is defined as a first frequency domain FR1, and CCs located in the first frequency domain FR1 are included in the first CC group CG_1 ) can be included. In addition, between 24250 (MHz) and 52600 (MHz) is defined as the second frequency domain FR2, and CCs located in the second frequency domain RF2 may be included in the second CC group CG_2. However, this is merely an exemplary embodiment, and is not limited thereto, and the frequency domains FR1 and FR2 may be defined in various ways.

Referring further to FIG. 8C , a frequency domain in a communication system to which carrier aggregation is applied may include a first frequency band Band1 and a second frequency band Band2. As an exemplary embodiment, in the intra mode of frequency aggregation, CCs located in the first frequency band (Band1) may be included in the first CC group (CG_1), and CCs located in the second frequency band (Band2) It may be included in the second CC group (CG_2). However, this is only an exemplary embodiment, and is not limited thereto, and CC groups may be defined for more frequency bands, and CCs located in two or more frequency bands in the inter mode of frequency aggregation Can be included in one CC group.

Referring further to FIG. 8D , in step S314, the base station 300 may check the target CC group to which the target CC belongs from CC group information. In this specification, a target CC may refer to a CC corresponding to an uplink panel change of the user device 310 . Specifically, the target CC may correspond to an uplink transmission beam formed in a changed uplink panel of the user equipment 310 . For example, the base station 300 may identify the first CC group (CG_1) as the target CC group when the target CC is the eleventh CC (CC_11).

In step S315, the base station 300 may generate an uplink panel change signal for the target CC group. For example, the base station 300 may generate an uplink panel change signal for the 11th CC to 1x CC (CC_11 to CC_1x) included in the target CC group.

In step S316, the base station 300 may transmit the uplink panel change signal generated in step S315 to the user device 310.

In step S333, the user device 310 may perform uplink panel change for the target CC group. For example, the user device 310 performs an additional uplink operation for the 12th to 1x CCs (CC_12 to CC_1x) included in the target CC group together with an uplink panel change operation for the target CC, the 11th CC (CC_11). You can perform panel change operation.

9 is a flowchart illustrating an operation method of the base station 300 and the user equipment 310 according to an exemplary embodiment of the present disclosure.

Referring to FIG. 9 , in step S342, the user device 310 may monitor an overlap between an uplink signal transmission time and an uplink panel change gap. Specifically, the user device 310 may check whether the uplink panel change gap between the time when the uplink panel change is started and the time when the uplink panel change is ended overlaps with the transmission time of the uplink signal. Since the user equipment 310 cannot easily transmit an uplink signal to the base station 300 in the uplink panel change gap, a predetermined agreement between the user equipment 310 and the base station 300 in this case is required.

In step S343, the user device 310 may determine a transmission scheme for the uplink signal according to the type of the uplink signal. In an exemplary embodiment, the user equipment 310 drops an uplink signal in the uplink panel change gap according to the type of the uplink signal, or at the next transmission time point after the uplink panel change ends. A link signal may be transmitted to the base station 300 .

In step S344, the user device 310 may transmit an uplink signal according to the determined transmission method. As an exemplary embodiment, the base station 300 may decode a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH) including an uplink signal at predetermined points in time to detect the uplink signal. Decoding time points for the PUCCH or PUSCH of the base station 300 may be preset.

10A and 10B are flowcharts for explaining steps S342 and S343 in FIG. 9 in detail.

Referring to FIG. 10A , following step S342 of FIG. 9 , in step S343_1, the user equipment may determine whether a channel including an uplink signal is a PUCCH. When step S343_1 is 'YES', subsequent to step S343_3, the user equipment may determine to transmit an uplink signal at a transmission time point after the uplink panel change is finished. When step S343_1 is 'NO', following step S343_4, the user equipment may determine a drop for the uplink signal. After that, step S344 may follow.

Referring to FIG. 10B, following step S342 of FIG. 9, in step S343_1, the user equipment may determine whether a channel including an uplink signal is a PUCCH. When step S343_1 is 'YES', subsequent to step S343_2, the user equipment can determine whether the uplink signal is CSI. When step S343_2 is 'NO', subsequent to step S343_3, the user equipment may determine to transmit an uplink signal at a transmission time point after the uplink panel change is finished. When step S343_1 is 'NO' or step S343_2 is 'YES', following step S343_4, the user equipment can determine the drop of the uplink signal. That is, when the channel including the uplink signal is PUCCH and the uplink signal is CSI, the user equipment determines transmission at the next transmission time, and the uplink signal is an ACK/NACK signal for the downlink signal or scheduling In the case of a scheduling request, a drop may be determined. After that, step S344 may follow. However, since this is only an exemplary embodiment, it is not limited thereto, and various transmission methods may be determined according to the type of uplink signal.

11 is a flowchart illustrating an operating method of a base station 300 and a user equipment 310 according to an exemplary embodiment of the present disclosure. Uplink panel change in FIG. 11 is assumed to be performed to change a transmission beam for PUSCH transmission.

Referring to FIG. 11 , in step S345, the user device 310 may check whether a transmission beam according to an uplink panel change is valid for PUCCH transmission. In step S346, the user device 310 may determine a transmission method according to the confirmation result. In step S347, the user equipment 310 may transmit the PUCCH according to the determined transmission method to the base station 300.

12A and 12B are flowcharts for explaining steps S345 and S346 in FIG. 11 in detail.

Referring to FIG. 12A, in step S345_1, the user equipment may change the uplink panel and transmit beam for PUCCH transmission. In some embodiments, the transmit beam for PUCCH transmission may be the same as the transmit beam for PUSCH transmission.

In step S345_2, the user equipment may determine whether the existing reference signal is valid for the changed transmission beam. As an exemplary embodiment, the existing reference signal is used to determine the previous transmission beam of the user equipment, and the user equipment can determine whether or not it is valid based on the reception strength of the existing reference signal. For example, the user equipment determines the existing reference signal as valid when the reception strength upon receiving the existing reference signal with the changed transmission beam is greater than a threshold value, and invalidates the existing reference signal when it is less than the threshold value. can be identified as

When step S345_2 is 'YES', following step S346_1, the user equipment can determine PUCCH transmission with the changed transmission beam. When step S345_2 is 'NO', step S346_2 is followed by the user equipment to determine a drop for PUCCH. Thereafter, step S347 may follow.

Referring to FIG. 12B, in step S345_1, the user equipment may change the uplink panel and transmit beam for PUCCH transmission. In some embodiments, the transmit beam for PUCCH transmission may be the same as the transmit beam for PUSCH transmission.

In step S345_2, the user equipment may determine whether the existing reference signal is valid for the changed transmission beam.

When step S345_2 is 'YES', following step S346_1, the user equipment can determine PUCCH transmission with the changed transmission beam.

When step S345_2 is 'NO', step S345_3 follows and the user equipment can determine whether the current PUCCH format satisfies the PUCCH format condition. As an exemplary embodiment, the user equipment may check whether the PUCCH format is 0/1 as a PUCCH format condition. For example, the user equipment determines that the PUCCH format condition is satisfied when the current PUCCH format is PUCCH format 0/1, and determines that the PUCCH format condition is not satisfied when the current PUCCH format is PUCCH format 2/3. can do.

When step S345_3 is 'NO', step S346_2 follows and the user equipment can determine a drop for PUCCH.

When step S345_3 is 'YES', following step S346_3, the user equipment can determine a reception beam used for reception of any one of the core sets for PDCCH as a transmission beam for transmitting PUCCH. For example, the user equipment may determine a reception beam used for reception of a core set using the lowest index among core sets for PDCCH as a transmission beam for transmitting PUCCH. That is, the RX beam used for reception of the core set using the lowest index may have the widest beam compared to other RX beams. Thereafter, step S347 may follow. Meanwhile, in the present specification, transmitting a control channel or a shared channel may mean transmitting a downlink signal or an uplink signal through the control channel or the shared channel.

In some embodiments, the signal to which step S346_3 is applied may be an ACK/NACK signal of PUCCH, and the signal to which step S346_3 is skipped may be CSI or scheduling request of PUCCH. That is, in the case of CSI or scheduling request, when step S345_2 is 'NO', the user device may skip step S345_3 and immediately perform step S346_2. However, this is only an exemplary embodiment, and is not limited thereto, and various embodiments may be applied to PUCCH transmission.

13 is a diagram for explaining an embodiment in which uplink panel change is performed after DCI required for PUSCH transmission is received.

Referring to FIG. 13, a user equipment may receive a PDCCH including a DCI for PUSCH transmission from a base station. Then, the user equipment may receive an uplink panel change indication signal from the base station. The user equipment may perform uplink panel change in response to the uplink panel change indication signal, form a new uplink transmission beam in the changed uplink panel, and transmit the PUSCH to the base station.

On the other hand, when the user equipment receives DCI corresponding to DCI format 0_1 or DCI format 0_2, the SRS that is the standard for the transmission beam to be used by the PUSCH through the SRS Resource Indicator (SRI) of the field of the received DCI resources can be determined. In this case, if the PUSCH is scheduled using the DCI as above, the DCI may not be valid for the new transmission beam when an uplink panel change interval exists between the DCI reception time and the PUSCH transmission time.

Accordingly, the user equipment according to the exemplary embodiment checks whether the received DCI is valid for PUSCH transmission using the new uplink transmission beam before performing the uplink panel change, and according to the check result, the transmission method for the PUSCH. can determine

FIG. 14 is a flowchart for explaining a copper foil method of the base station 300 and the user equipment 310 in the embodiment of FIG. 13 .

Referring to FIG. 14, in step S345', the user device 310 may check whether a transmission beam according to an uplink panel change is valid for PUSCH transmission. As an example, the transmit beam may be based on DCI received before the uplink panel change. As an exemplary embodiment, the UE 310 determines that a Tx beam scheduled using an SRI based on an SRS that is not valid in DCI format 0_1 or DCI format 0_2 or a Transmit Precoder Matrix Indicator (TPMI) is not valid for PUSCH transmission. can confirm that it is not.

In step S346', the user equipment 310 may determine a transmission method for the PUSCH according to the confirmation result in step S345'. For example, when the scheduled transmission beam is not valid for PUSCH transmission, the user equipment 310 drops the corresponding PUSCH or receives a reception beam of a core set using the lowest index among core sets for a PDCCH. It can be determined to transmit the PUSCH using as a transmission beam. As another example, when the scheduled transmission beam is valid for PUSCH transmission, the user equipment 310 may determine to transmit the corresponding PUSCH using the scheduled transmission beam.

In step S347', the user equipment 310 may transmit the PUSCH according to the transmission method determined in step S346'.

15 is a flowchart illustrating an operating method of the base station 300 and the user equipment 310 according to an exemplary embodiment of the present disclosure.

Referring to FIG. 15 , in step S321, the base station 300 may transmit an uplink panel change gap indication signal to the user equipment 310. Then, in step S322, the base station 300 may transmit a downlink signal to the user equipment 310.

In step S334, the user device 310 may monitor an overlap between the reception time of the downlink signal and the uplink panel change gap. As an exemplary embodiment, the user device 310 may predict whether an uplink panel change gap scheduled to be performed overlaps with a downlink signal reception point. That is, since it may be difficult for the user equipment 310 to smoothly receive a downlink signal in the uplink panel change gap, it may be important to monitor the overlap between the uplink panel change gap and the reception time of the downlink signal.

In step S335, the user device 310 may determine a reception method according to the type of downlink signal. As an exemplary embodiment, the user device 310 may assume that a downlink signal is not received or delay changing an uplink panel according to the type of the downlink signal.

16 is a flowchart for explaining steps S334 and S335 of FIG. 15 in detail.

Referring to FIG. 16, following step S322 of FIG. 15, in step S344_1, the user device may determine whether a downlink signal is a Synchronization Signal Block (SSB). When step S344_1 is 'NO', the user equipment may assume that the downlink signal is not received.

When step S344_1 is 'YES', the user equipment may delay the uplink panel change so that the downlink signal and the uplink panel change gap do not overlap. Through this, the user equipment can preferentially receive the downlink signal.

17 is a block diagram illustrating an electronic device 1000 according to an exemplary embodiment of the present disclosure. The electronic device 1000 may be a user device according to an exemplary embodiment of the present disclosure.

Referring to FIG. 17 , an electronic device 1000 includes a memory 1010, a processor unit 1020, an input/output control unit 1040, a display unit 1050, an input device 1060, and a communication processing unit 1090. can include Here, a plurality of memories 1010 may exist. Here's a look at each component:

The memory 1010 may include a program storage unit 1011 for storing a program for controlling the operation of an electronic device and a data storage unit 1012 for storing data generated during program execution. The data storage unit 1012 may store data necessary for the operation of the application program 1013 and the uplink panel change module 1014 . As an exemplary embodiment, the data storage unit 1012 may store information (INFO) necessary for performing uplink panel change according to exemplary embodiments of the present disclosure.

The program storage unit 1011 may include an application program 1013 and an uplink panel change module 1014 . Here, the program included in the program storage unit 1011 may be expressed as an instruction set as a set of instructions. The application program 1013 may include program codes for executing various applications operating in the electronic device 1000 . That is, the application program 1013 may include codes (or commands) related to various applications driven by the processor 1022 . Uplink panel change module 1014 may include codes (or commands) for performing uplink panel change according to exemplary embodiments of the present disclosure.

As an exemplary embodiment, the processor 1022 executes the uplink panel change module 1014 to perform uplink panel change-related signaling with the base station using the communication processing unit 1090, and based on this, the uplink panel change-related signaling is performed. change can be made.

Meanwhile, the electronic device 1000 may include a communication processing unit 1090 that performs communication functions for voice communication and data communication.

The peripheral device interface 1023 may control a connection between the input/output control unit 1040 , the communication processing unit 1090 , the processor 1022 , and the memory interface 1021 . The processor 1022 controls a plurality of base stations to provide a corresponding service using at least one software program. In this case, the processor 1022 may execute at least one program stored in the memory 1010 to provide a service corresponding to the corresponding program.

The input/output control unit 1040 may provide an interface between an input/output device such as the display unit 1050 and the input device 1060 and the peripheral device interface 1023 . The display unit 1050 displays status information, input text, a moving picture, a still picture, and the like. For example, the display unit 1050 may display application program information driven by the processor 1022 .

The input device 1060 may provide input data generated by selection of an electronic device to the processor unit 1020 through the input/output controller 1040 . In this case, the input device 1060 may include a keypad including at least one hardware button and a touch pad that detects touch information. For example, the input device 1060 may provide touch information, such as a touch detected through a touch pad, a touch movement, or a touch release, to the processor 1022 through the input/output control unit 1040 .

18 is a conceptual diagram showing an IoT network system 2000 to which an exemplary embodiment of the present disclosure is applied.

Referring to FIG. 18, the IoT network system 2000 includes a plurality of IoT devices 2100, 2120, 2140, and 2160, an access point 2200, a gateway 2250, a wireless network 2300, and a server 2400. can include The Internet of Things (IoT) may refer to a network between objects using wired/wireless communication.

Each of the IoT devices 2100, 2120, 2140, and 2160 may form a group according to characteristics of each IoT device. For example, IoT devices may be grouped into a home gadget group 2100, home appliances/furniture group 2120, entertainment group 2140, or vehicle group 2160. The plurality of IoT devices 2100 , 2120 , and 2140 may be connected to a communication network or to other IoT devices through the access point 2200 . The access point 2200 may be embedded in one IoT device. The gateway 2250 may change the protocol to connect the access point 2200 to an external wireless network. The IoT devices 2100, 2120, and 2140 may be connected to an external communication network through the gateway 2250. The wireless network 2300 may include the Internet and/or a public network. The plurality of IoT devices 2100, 2120, 2140, and 2160 may be connected to the server 2400 providing a predetermined service through the wireless network 2300, and the plurality of IoT devices 2100, 2120, 2140, and 2160 ) through at least one of which the user can use the service. Each of the plurality of IoT devices 2100, 2120, 2140, and 2160 may include a plurality of antenna panels, and may perform uplink panel change according to exemplary embodiments of the present disclosure.

As above, exemplary embodiments have been disclosed in the drawings and specifications. Although the embodiments have been described using specific terms in this specification, they are only used for the purpose of explaining the technical idea of the present disclosure, and are not used to limit the scope of the present disclosure described in the claims. . Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical scope of protection of the present disclosure should be determined by the technical spirit of the appended claims.

Claims (20)

In user equipment that communicates with the device,
a first antenna panel;
a second antenna panel;
a controller configured to control the first and second antenna panels;
The controller,
The second transmission beam is changed from the first transmission beam of the first antenna panel turned on to the second transmission beam of the second antenna panel turned off based on uplink panel change-related signaling with the device. User equipment, characterized in that configured to perform an uplink panel change to turn on the antenna panel. According to claim 1,
Signaling related to the uplink panel change,
transmitting, by the controller, panel-related performance information of the user device to the device; and
and receiving, by the controller, an uplink panel change signal corresponding to the panel-related performance information from the device. According to claim 2,
The panel related performance information,
Whether it is necessary to change the uplink panel of the user equipment, the number of antenna panels included in the user equipment, the maximum number of antenna panels that can be used simultaneously, whether a gap for changing the uplink panel is generated and the length of the gap A user device characterized in that it includes at least one of the information. According to claim 2,
The uplink panel change signal,
and at least one of a start point, an end point, and a length of the gap. According to claim 1,
The signaling related to the uplink panel,
and transmitting, by the controller, a notification signal for notifying a change of a transmission beam to the device. According to claim 5,
The notification signal,
and at least one of a signal indicating the second transmission beam changed from the first transmission beam and a signal indicating an end point of the change. According to claim 1,
The signaling related to the uplink panel,
receiving an uplink panel change gap indication signal from the device; and
and transmitting, by the controller, an ACK signal or a NACK signal in response to the indication signal. According to claim 7,
The controller,
The user equipment, characterized in that configured to start the uplink panel change after a predetermined time from the time point of transmitting the ACK signal. According to claim 1,
The controller,
Transmitting the uplink signal to the device according to a transmission method determined based on the type of the uplink signal when the gap for changing the uplink panel and the transmission time of the uplink signal overlap. device. According to claim 9,
The controller,
To transmit the uplink signal at the next transmission time when the type of the uplink signal is PUCCH (Physical Uplink Control Channel), and to drop the uplink signal when the type of the uplink signal is not the PUCCH A user device, characterized in that configured. According to claim 1,
The first and second transmission beams are for transmitting a Physical Uplink Shared Channel (PUSCH),
The controller,
The user device, characterized in that configured to check whether the second transmission beam is valid for transmitting the PUCCH, and transmit the PUCCH according to a transmission method based on a result of the check. According to claim 11,
The controller,
Transmit the PUCCH on the second transmission beam when a reference signal corresponding to the first transmission beam is valid for the second transmission beam, and drop the PUCCH when the reference signal is invalid for the second transmission beam. A user device characterized in that. According to claim 11,
The controller,
Transmitting the PUCCH on the second transmission beam when a reference signal corresponding to the first transmission beam is valid for the second transmission beam;
When the reference signal is invalid for the second transmission beam, if the format condition for the PUCCH is satisfied, the reception beam used for reception of any one of the core sets for the PDCCH is determined as the third transmission beam, and the third transmission beam is determined. The user equipment characterized in that it is determined to transmit the PUCCH on a transmission beam and to drop the PUCCH when a format condition for the PUCCH is unsatisfactory. According to claim 13,
The third transmission beam is used for reception of a core set using the lowest index among the core sets. user equipment including a plurality of antenna panels; and
Including a device for performing communication with the user device,
The user device,
Perform uplink panel change-related signaling with the device, and based on the uplink panel change-related signaling, at least one turned-on first antenna panel among the plurality of antenna panels is replaced with at least one turned-off antenna panel among the plurality of antenna panels. and perform an uplink panel change to turn on said at least one second antenna panel to change to a second antenna panel of According to claim 15,
Signaling related to the uplink panel change,
receiving, by the device, panel-related performance information from the user device; and
and transmitting, by the device, an uplink panel change signal generated based on the panel-related performance information to the user device. According to claim 16,
The device,
When changing a transmission beam for transmitting a downlink signal to the user device, monitoring whether the uplink panel needs to be changed, and generating the uplink panel change signal when the uplink panel needs to be changed. communication system. According to claim 15,
The signaling related to the uplink panel,
receiving, by the device, a notification signal for notifying a change of a transmission beam from the user device; and
and confirming, by the device, a transmission beam change of the device from the announcement signal. According to claim 15,
The signaling related to the uplink panel,
Transmitting, by the device, an uplink panel change signal in units of CC groups to the user equipment;
The user device,
and performing the uplink panel change in units of the CC groups in response to the uplink panel change signal. A method of operating a user device that selectively uses at least one of a plurality of antenna panels to communicate with a device, comprising:
performing uplink panel change-related signaling with the device; and
Based on the uplink panel change-related signaling, at least one first antenna panel turned on among the plurality of antenna panels is changed to at least one second antenna panel turned off among the plurality of antenna panels. A method of operating a user equipment comprising performing an uplink panel change to turn on a second antenna panel.

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