KR20220089882A - Operating Method of wireless communication service, a User Equipment and a base-station supporting the same - Google Patents

Abstract

The present invention includes a communication circuit and a processor, wherein the processor transmits user terminal capability information to a base station device in connection with cell entry by a base station device, and a layer corresponding to providing the user terminal capability information from the base station device Receive combination information, and control to establish a communication channel based on the communication circuit based on the layer combination information, wherein the user terminal capability information includes the maximum number of supportable layers requested by the user terminal, the base station device Supports a user terminal and its communication service, characterized in that it includes the maximum number of supportable bands and the number of layers requested by the user terminal for each communication system supported by the user terminal, and the maximum number of supportable layers for each band requested by the user terminal Disclosed is a base station device.

Description

A method of operating a wireless communication service and a user terminal and a base station device supporting the same {Operating Method of wireless communication service, a User Equipment and a base-station supporting the same}

The present invention relates to capability reporting of a user terminal, and more particularly, user terminal capability including the maximum number of supportable layers of the user terminal in a base station supporting a plurality of systems, and the maximum number of supportable bands and layers for each system To a method for operating a wireless communication service capable of reporting information, and to a user terminal and a base station apparatus supporting the same.

The wireless communication system provides a high-speed data service as well as a voice service. For this high-speed data service, a frequency, which is a finite resource, must be efficiently used. In this regard, the multiple transmit/receive antenna system may increase the channel capacity in proportion to the number of antennas without additional frequency or transmit power allocation. According to these technical characteristics, communication service providers are constructing multi-antenna systems in order to increase frequency efficiency. Communication systems using the above-described multi-antenna system include 4G and 5G mobile communication systems such as Long-term Evolution (LTE), LTE-ADVANCED, and 5G-NR (New Radio).

On the other hand, LTE terminals supporting CA (Carrier Aggregation) and MIMO (Multiple-Input-Multiple-Output) must report to the base station the supported frequencies and the maximum number of MIMO Layers that can be supported in each frequency. The base station sets the number of frequency bands or CCs (Carrier Component) to be used for CA and the maximum layer for each CC based on the UE's report. In EN-DC (E-utran/NR dual connectivity) or NE-DC (NR/E-utran dual connectivity) systems that use LTE and NR at the same time, the number of CCs for each system and each layer for each CC are added to the user terminal capability information ( UE capability information) should be reported. If the UE can support all systems (LTE, NR) for all bands (or CC) with the maximum number of layers supported by the UE, and the maximum number of layers for each band, it is not a big problem. The terminal reports one combination composed of the maximum number of layers for all systems and bands, and the base station may determine and set the combination provided by the terminal. For example, if the UE supports up to 24 layers, and the base station supports 4 LTE bands, 4 layers per band, and 1 NR CC and 4 layers per CC, the UE reports that 4 layers can be supported for each band and the base station supports the maximum Even if it is downgraded, it is less than the maximum of 24 layers with a total of 20 layers.

Table 1 is the UE capability content reported according to the current standard when the UE can support up to 24 layers and supports B1, B3, B5, B7, B8 of LTE and n78 of NR.

UE Capability Configuration DL CC DL Layer Total DL Layer Feature-
Set-
Combination 0 eutra: bandEUTRA 1 ca-BandwidthClassDL-EUTRA a fourLayerTM3-TM4-r15 supported One 4 22 ca-BandwidthClassUL-EUTRA a - UL bandEUTRA 3 ca-BandwidthClassDL-EUTRA a fourLayerTM3-TM4-r15 supported One 4 bandEUTRA 5 ca-BandwidthClassDL-EUTRA a One 2 bandEUTRA 7 ca-BandwidthClassDL-EUTRA a fourLayerTM3-TM4-r15 supported One 4 bandEUTRA 8 ca-BandwidthClassDL-EUTRA a fourLayerTM3-TM4-r15 supported One 4 nr: bandNR 78 ca-BandwidthClassDL-NR a maxNumberMIMO-LayersPDSCH fourLayers One 4 ca-BandwidthClassUL-NR a - UL Feature-
Set-
Combination 1 eutra: bandEUTRA 1 ca-BandwidthClassDL-EUTRA a fourLayerTM3-TM4-r15 supported One 4 22 bandEUTRA 3 ca-BandwidthClassDL-EUTRA a fourLayerTM3-TM4-r15 supported One 4 ca-BandwidthClassUL-EUTRA a - UL bandEUTRA 5 ca-BandwidthClassDL-EUTRA a - One 2 bandEUTRA 7 ca-BandwidthClassDL-EUTRA a fourLayerTM3-TM4-r15 supported One 4 bandEUTRA 8 ca-BandwidthClassDL-EUTRA a fourLayerTM3-TM4-r15 supported One 4 nr: bandNR 78 ca-BandwidthClassDL-NR a maxNumberMIMO-LayersPDSCH fourLayers One 4 ca-BandwidthClassUL-NR a - UL Feature-
Set-
Combination 2 eutra: bandEUTRA 1 ca-BandwidthClassDL-EUTRA a fourLayerTM3-TM4-r15 supported One 4 22 bandEUTRA 3 ca-BandwidthClassDL-EUTRA a fourLayerTM3-TM4-r15 supported One 4 bandEUTRA 5 ca-BandwidthClassDL-EUTRA a - One 2 ca-BandwidthClassUL-EUTRA a - UL bandEUTRA 7 ca-BandwidthClassDL-EUTRA a fourLayerTM3-TM4-r15 supported One 4 bandEUTRA 8 ca-BandwidthClassDL-EUTRA a fourLayerTM3-TM4-r15 supported One 4 nr: bandNR 78 ca-BandwidthClassDL-NR a maxNumberMIMO-LayersPDSCH fourLayers One 4 ca-BandwidthClassUL-NR a - UL Feature-
Set-
Combination 3 eutra: bandEUTRA 1 ca-BandwidthClassDL-EUTRA a fourLayerTM3-TM4-r15 supported One 4 22 bandEUTRA 3 ca-BandwidthClassDL-EUTRA a fourLayerTM3-TM4-r15 supported One 4 bandEUTRA 5 ca-BandwidthClassDL-EUTRA a - One 2 bandEUTRA 7 ca-BandwidthClassDL-EUTRA a fourLayerTM3-TM4-r15 supported One 4 ca-BandwidthClassUL-EUTRA a - UL bandEUTRA 8 ca-BandwidthClassDL-EUTRA a fourLayerTM3-TM4-r15 supported One 4 nr: bandNR 78 ca-BandwidthClassDL-NR a maxNumberMIMO-LayersPDSCH fourLayers One 4 ca-BandwidthClassUL-NR a - UL Feature-
Set-
Combination 4 eutra: bandEUTRA 1 ca-BandwidthClassDL-EUTRA a fourLayerTM3-TM4-r15 supported One 4 22 bandEUTRA 3 ca-BandwidthClassDL-EUTRA a fourLayerTM3-TM4-r15 supported One 4 bandEUTRA 5 ca-BandwidthClassDL-EUTRA a - One 2 bandEUTRA 7 ca-BandwidthClassDL-EUTRA a fourLayerTM3-TM4-r15 supported One 4 bandEUTRA 8 ca-BandwidthClassDL-EUTRA a fourLayerTM3-TM4-r15 supported One 4 ca-BandwidthClassUL-EUTRA a - UL nr: bandNR 78 ca-BandwidthClassDL-NR a maxNumberMIMO-LayersPDSCH fourLayers One 4 ca-BandwidthClassUL-NR a - UL

Even if all LTE and NR bands are supported with the maximum number of layers, the total is 22 layers, which is less than the maximum of 24 layers, so (1 DL combination) * (5 UL combinations) = 5 total combinations (featureSetCombination) That's enough. However, when the UE cannot support all systems and all CCs with the maximum number of layers that can be supported, the UE must report a plurality of combinations of systems/CC/Layer that can be used within the maximum layer, and the number becomes very large. For example, if it is assumed that there are 10 bands of 4 layers each in a situation where the UE supports a maximum of 24 layers, 210 combinations of selecting 6 bands in any order among at least 10 bands with 24 layers, the maximum capability of the UE, must be reported, and if the UL combination is also reported, the number becomes much higher. So far, fewer than 10 combinations including UL have been reported, but the number is increased by several orders of magnitude. This acts as a burden upon initial access, and if only some combinations are reported due to the limit of the RRC message size, performance may vary depending on the reported combinations.

Table 2 shows combinations that the UE should upload as the current standard when the base station can provide 5 LTE CCs, 2 NR FR1 (Sub-6GHz) CCs, and 8 NR FR2 (mmWave) CCs.

UE Capability Configuration DL CC DL Layer Total DL Layer UL CC UL Layer Total UL Layer featureSetCombination 0
(*no LTE) eutra: 24 9 nr: bandNR 78 ca-BandwidthClassDL-NR c maxNumberMIMO-LayersPDSCH fourLayers 2 4 ca-BandwidthClassUL-NR a - One One bandNR 257 ca-BandwidthClassDL-NR m maxNumberMIMO-LayersPDSCH twoLayers 8 2 ca-BandwidthClassUL-NR i maxNumberMIMO-LayersCB-PUSCH twoLayers 4 2 …
featureSetCombination N
featureSetCombination N+1
… … … … … … … …
24
24
… … … …
24
24
…

As described above, even within the limit of 24 layers that can be supported by the UE, hundreds of various combinations such as combinations according to LTE/NR and combinations according to band selection are possible, so there is a problem in that the burden increases.

An object of the present invention is to provide a method for operating a wireless communication service capable of supporting more efficient information reporting by simplifying user terminal capability information, and a user terminal and a base station apparatus supporting the same.

However, the object of the present invention is not limited to the above object, and other objects not mentioned will be clearly understood from the following description.

The method of operating a wireless communication service of the present invention for achieving the object as described above includes, by a user terminal, transmitting user terminal capability information to a base station device that has received system information, and generating based on the user terminal capability information Receiving the layer combination information from the base station device and setting a communication channel based on the layer combination information, wherein the user terminal capability information is the maximum supportable number of layers of the user terminal, the base station apparatus includes the maximum number of bands and layers that can be supported by the user terminal for each communication system supported by , and the maximum number of layers supportable for the user terminal for each band, or requests a layer with priority among communication systems supported by the base station device It is characterized in that it includes combination information indicating a specific communication system, classifying the types of communication systems by the number of digits, and numerical information corresponding to the maximum number of supportable layers for each communication system.

A user terminal according to an embodiment of the present invention includes a communication circuit and a processor, wherein the processor transmits user terminal capability information to the base station device in connection with cell entry by the base station device, and the user terminal capper from the base station device Receive layer combination information corresponding to the capability information provision, and control to establish a communication channel based on the communication circuit based on the layer combination information, wherein the user terminal capability information is the maximum support requested by the user terminal The number of available layers, the maximum number of supportable bands and layers requested by the user terminal for each communication system supported by the base station apparatus, and the maximum number of supportable layers for each band requested by the user terminal are included.

Here, the maximum number of supportable layers requested by the user terminal for each communication system supported by the base station device is the maximum number of supportable layers for LTE, the maximum number of supportable layers for each band of LTE, and the maximum number of supportable layers for NR FR1 It may include at least one of the maximum number of supportable layers for each band of the NR FR1, the maximum number of supportable layers for NR FR2, and the maximum number of supportable layers for each band of the NR FR2.

Correspondingly, the communication circuit includes an LTE support communication module supporting the LTE communication system of the base station apparatus, a sub-6GHz support communication module supporting the NR FR1 communication system of the base station apparatus, and an NR FR2 communication system of the base station apparatus It may include at least one of the supported mmWave support communication modules.

A user terminal according to an embodiment of the present invention includes a communication circuit and a processor, wherein the processor transmits user terminal capability information to the base station device in connection with cell entry by the base station device, and the user terminal capper from the base station device Receive layer combination information corresponding to the capability information provision, and control to establish a communication channel based on the communication circuit based on the layer combination information, wherein the user terminal capability information is a communication system supported by the base station device It is characterized in that it includes combination information indicating a specific communication system requesting a layer with priority among them, and numeric information corresponding to the maximum number of supportable layers for each communication system by classifying the types of the communication systems by number of digits.

In particular, the user terminal capability information includes number information designated in response to a communication system that does not request layer allocation, and the designated number information is 0.

Alternatively, the processor is characterized in that it is configured to delete numeric information corresponding to a communication system that does not request layer allocation from the user terminal capability information.

A base station apparatus according to an embodiment of the present invention includes a base station communication circuit and a base station processor, wherein the base station processor transmits system information and receives user terminal capability information from a user terminal receiving the system information, the user Generates layer combination information based on terminal capability information, and provides the layer combination information to the user terminal, wherein the user terminal capability information includes the maximum number of supportable layers of the user terminal, communication supported by the base station apparatus It is characterized in that it includes the maximum number of bands and layers supportable to the user terminal for each system, and the maximum number of layers supportable to the user terminal for each band.

A base station apparatus according to an embodiment of the present invention includes a base station communication circuit and a base station processor, wherein the base station processor transmits system information and receives user terminal capability information from a user terminal receiving the system information, the user Generating layer combination information based on the terminal capability information, and providing the layer combination information to the user terminal, the user terminal capability information is a specific requesting a layer with priority among communication systems supported by the base station apparatus It is characterized in that it includes combination information indicating a communication system and numeric information corresponding to the maximum number of supportable layers for each communication system by classifying the types of the communication systems by the number of digits.

According to the present invention, through a more efficient user terminal capability report, the communication service connection of the user terminal can be processed more quickly, and the burden in the communication service connection process can be reduced.

In addition, various effects other than the above-described effects may be directly or implicitly disclosed in the detailed description according to embodiments of the present invention to be described later.

1 is a diagram illustrating an example of a wireless communication system environment according to an embodiment of the present invention.
2 is a diagram illustrating an example of a configuration of a user terminal according to an embodiment of the present invention.
3 is a diagram illustrating an example of a configuration of a base station apparatus according to an embodiment of the present invention.
4 is a diagram illustrating a signal flow diagram between components of a wireless communication system related to user terminal capability reporting according to an embodiment of the present invention.
5 is a diagram illustrating an example of a user terminal operating method related to a wireless communication service operating method according to an embodiment of the present invention.
6 is a diagram illustrating an example of a method of operating a base station apparatus related to a method of operating a wireless communication service according to an embodiment of the present invention.

In order to clarify the characteristics and advantages of the problem solving means of the present invention, the present invention will be described in more detail with reference to specific embodiments of the present invention shown in the accompanying drawings.

However, detailed descriptions of well-known functions or configurations that may obscure the gist of the present invention in the following description and accompanying drawings will be omitted. Also, it should be noted that, throughout the drawings, the same components are denoted by the same reference numerals as much as possible.

The terms or words used in the following description and drawings should not be construed as being limited to conventional or dictionary meanings, and the inventor may appropriately define the concept of terms for describing his invention in the best way. Based on the principle that there is, it should be interpreted as meaning and concept consistent with the technical idea of the present invention. Accordingly, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention, and do not represent all of the technical spirit of the present invention. It should be understood that there may be equivalents and variations.

In addition, terms including ordinal numbers such as 1st, 2nd, etc. are used to describe various components, and are used only for the purpose of distinguishing one component from other components, and to limit the components. not used For example, without departing from the scope of the present invention, the second component may be referred to as the first component, and similarly, the first component may also be referred to as the second component.

In addition, the terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In addition, terms such as "comprises" or "have" described in this specification are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or the It should be understood that the above does not preclude the possibility of the existence or addition of other features or numbers, steps, operations, components, parts, or combinations thereof.

In addition, terms such as "unit", "group", and "module" described in the specification mean a unit that processes at least one function or operation, which may be implemented as hardware or software or a combination of hardware and software. Also, "a or an", "one", "the" and like related terms are used differently herein in the context of describing the invention (especially in the context of the following claims). Unless indicated or clearly contradicted by context, it may be used in a sense including both the singular and the plural.

In addition to the above-mentioned terms, specific terms used in the following description are provided to help the understanding of the present invention, and the use of these specific terms may be changed to other forms without departing from the technical spirit of the present invention.

In addition, embodiments within the scope of the present invention include computer-readable media having or carrying computer-executable instructions or data structures stored in the computer-readable media. Such computer readable media can be any available media that can be accessed by a general purpose or special purpose computer system. By way of example, such computer-readable media may be in the form of RAM, ROM, EPROM, CD-ROM, or other optical disk storage, magnetic disk storage or other magnetic storage, or computer-executable instructions, computer-readable instructions, or data structures. It may include, but is not limited to, a physical storage medium such as any other medium that can be used to store or convey any program code means in .

1 is a diagram illustrating an example of a wireless communication system environment according to an embodiment of the present invention.

Referring to FIG. 1 , a wireless communication system environment 10 according to an embodiment may include at least one user equipment (UE: User Equipment, 200 ) and a base station device 100 . In the illustrated drawings, one user terminal 200 and one base station apparatus 100 are illustrated as examples, but the present invention is not limited thereto. For example, a plurality of base station apparatuses 100 may be disposed at a predetermined distance or a predetermined distance. When at least one user terminal 200 is located within the communication coverage of the plurality of base station apparatuses 100, the at least one user terminal 200 can enter into the communication coverage of the corresponding base station apparatus 100 and use a communication service. .

The user terminal 200 enters into the communication coverage of the base station device 100 and in the process of performing camping on, the base station device 100 connects a plurality of communication systems (eg, LTE, NR FR1, NR FR2, etc.) If it can be provided at the same time, for optimal system and CA configuration, information about the maximum supportable band number and layer number of the user terminal 200, and the maximum number of bands and layers per system, etc. is provided to the user terminal capability information (UE). Capability Ext (ension) information) and may be provided to the base station apparatus 100 . Accordingly, the user terminal capability information may include information on the maximum supportable layer of the user terminal 200, the maximum supportable band number and number of layers for each communication system type, and the maximum supportable layer number for each band. have.

The base station apparatus 100 performs various signal processing and information transfer related to the communication service support of the user terminal 200 , data collection and analysis provided by the user terminal 200 , and channel change or channel maintenance according to the analysis result. can be processed The base station apparatus 100 transmits a specified signal related to the communication service use of the user terminal 200 based on a predetermined amount of power to provide a communication coverage (or serving cell) capable of supporting the communication service of the user terminal 200 . can be formed To this end, the base station apparatus 100 may include at least one transmitting antenna and a receiving antenna for transmitting a signal. The base station apparatus 100 according to an embodiment of the present invention may be configured to simultaneously support a plurality of communication systems (eg, LTE, NR FR1, NR FR2, etc.). The base station apparatus 100 may transmit system information at regular intervals and receive UE capability information from the user terminal 200 . The base station apparatus 100 may select a DL and UL combination of the corresponding user terminal 200 based on the user terminal capability information, and may provide information on the selected combination to the user terminal 200 . In this process, the base station apparatus 100 may configure the optimal layer combination based on the user terminal capability information and the rate information subscribed to by the user terminal 200 .

2 is a diagram illustrating an example of a configuration of a user terminal according to an embodiment of the present invention.

Referring to FIG. 2 , the user terminal 200 according to an embodiment of the present invention may include a communication circuit 210 , a memory 230 , a display 240 , and a processor 250 . Additionally, the user terminal 200 may include a plurality of antennas connected to the communication circuit 210 . The plurality of antennas may be added when the user terminal 200 supports MIMO.

The communication circuit 210 may support formation of a communication channel of the user terminal 200 . The communication circuit 210 may perform a peripheral search in response to the control of the processor 250 and collect signals transmitted by the base station device 100 of a communication service provider to which it has subscribed. The communication circuit 210 may transmit/receive a signal required to perform camping-on to the base station device 100 based on a signal collected in response to the control of the processor 250 . For example, the communication circuit 210 may receive a system information block (System Information Block) transmitted by the base station apparatus 100 and transmit it to the processor 250 . The communication circuit 210 provides the user terminal capability information to the base station apparatus 100 in response to the control of the processor 250, and may receive layer combination information (or layer optimal combination information) from the base station apparatus 100 have. The communication circuit 210 may include a plurality of communication modules to form a communication channel with various communication systems supported by the base station apparatus 100 . For example, the communication circuit 210 is an LTE support communication module supporting the LTE communication system of the base station device 100, a sub-6GHz support communication module supporting the NR FR1 communication system of the base station device 100, and the NR of the base station device It may include at least one of mmWave support communication modules supporting the FR2 communication system. Each communication module may be operated simultaneously or individually in response to the control of the processor 250 . The communication module may be at least partially implemented as a circuit element or at least partially configured as a software module.

The memory 230 may store various programs or data necessary for performing a user function installed in the user terminal 200 . For example, the memory 230 may store a program related to performing a communication function of the user terminal 200 and data necessary for performing the communication function. The memory 230 may store characteristic information of the user terminal 200 . For example, information on the maximum number of supportable layers supported by the user terminal 200, the maximum number of supportable bands and layers for each communication system, and the maximum number of supportable layers for each band may be stored and managed.

The display 240 may output at least one screen required for operation of the user terminal 200 . For example, when a turn-on input is received in the turn-off state, the display 240 may output a designated standby screen or home screen corresponding to the control of the processor 250 . The display 240 may output an identifier corresponding to a communication system of a type currently supported by the user terminal 200 . Also, the display 240 may display specification information of the user terminal 200 . For example, the display 240 may output the type of communication service (or the type of communication system) that the user terminal 200 can support. Also, the display 240 may output information on the number of layers among the information stored in the memory 230 . The display 240 may output layer combination information allocated from the base station apparatus 100 .

The processor 250 may activate a program related to user function support of the user terminal 200 and transfer or process data required for user function operation. The processor 250 may control necessary operations in relation to support of the communication function of the user terminal 200 . For example, when the processor 250 is changed from a turn-off state to a turn-on state or a handover condition is satisfied, the processor 250 controls the antenna and the communication circuit 210 to perform a peripheral search and access to a base station device. (100) can be searched for. It is possible to collect system information transmitted by the accessible base station device 100 , and provide response information to the base station device 100 , but provide user terminal capability information. In this case, the processor 250 calculates the maximum number of supported layers based on communication systems supportable by the base station apparatus 100 and provides user terminal capability information including information on the number of corresponding layers to the base station apparatus 100 . can Alternatively, the processor 250 may provide the base station apparatus 100 with only information on the number of layers supported by the processor 250 , regardless of the supportable communication system of the base station apparatus 100 . For example, the maximum supported layer of the user terminal is 24, the maximum number of supported layers of the first communication system (eg, LTE) is 16 (Band 1 maximum supported layer number is 4, Band 3 maximum supported layer number is 4, Band 5 maximum supported layer number is 4) The number of supported layers is 2, the maximum number of supported layers for Band 7 is 4, the maximum number of supported layers for Band 8 is 4), and the maximum number of supported layers for the second communication system (eg NR FR1) is 8 (the maximum number of supported layers for Band 77 is 4) , Band 78 maximum number of supported layers is 4), and when the third communication system (eg NR FR2) maximum supported layer number is 16 (Band 257 maximum supported layer number is 16 (eg 8CC x 2lyaer/CC)), Table 3 As shown in , the user terminal capability information may be transmitted to the base station apparatus 100 .

(tentative name) maxNumberLayer-DL 24 CC Layer (tentative name) maxNumberLayer-EUTRA-DL 16 bandEUTRA 1 (tentative name) ca-BandwidthClassDL-EUTRA-ext a (tentative name) maxNumberMIMO-LayersPDSCH-ext fourLayers One 4 bandEUTRA 3 (tentative name) ca-BandwidthClassDL-EUTRA-ext a (tentative name) maxNumberMIMO-LayersPDSCH-ext fourLayers One 4 bandEUTRA 5 (tentative name) ca-BandwidthClassDL-EUTRA-ext a (tentative name) maxNumberMIMO-LayersPDSCH-ext twoLayers One 2 bandEUTRA 7 (tentative name) ca-BandwidthClassDL-EUTRA-ext a (tentative name) maxNumberMIMO-LayersPDSCH-ext fourLayers One 4 bandEUTRA 8 (tentative name) ca-BandwidthClassDL-EUTRA-ext a (tentative name) maxNumberMIMO-LayersPDSCH-ext fourLayers One 4 (tentative name) maxNumberLayer-NR-FR1-DL 8 bandNR 78 (tentative name) ca-BandwidthClassDL-NR-ext c (tentative name) maxNumberMIMO-LayersPDSCH-ext fourLayers One 4 (tentative name) maxNumberLayer-NR-FR2-DL 16 bandNR 257 (tentative name) ca-BandwidthClassDL-NR-ext m (tentative name) maxNumberMIMO-LayersPDSCH-ext twoLayers 8 2 (tentative name) maxNumberLayer-UL 12 (tentative name) maxNumberLayer-EUTRA-UL 1 bandEUTRA 1 (tentative name) ca-BandwidthClassUL-EUTRA-ext a - One One bandEUTRA 3 (tentative name) ca-BandwidthClassUL-EUTRA-ext a - One One bandEUTRA 5 (tentative name) ca-BandwidthClassUL-EUTRA-ext a - One One bandEUTRA 7 (tentative name) ca-BandwidthClassUL-EUTRA-ext a - One One bandEUTRA 8 (tentative name) ca-BandwidthClassUL-EUTRA-ext a - One One (tentative name) maxNumberLayer-NR-FR1-UL 2 bandNR 78 (tentative name) ca-BandwidthClassUL-NR-ext a (tentative name) maxNumberMIMO-LayersCB-PUSCH-ext twoLayers One 2 (tentative name) maxNumberLayer-NR-FR2-UL 8 bandNR 257 (tentative name) ca-BandwidthClassUL-NR-ext i (tentative name) maxNumberMIMO-LayersCB-PUSCH-ext twoLayers 4 2

Referring to Table 3, the user terminal capability (US Capability) (or user terminal capability information) is the maximum number of supportable layers requested by the user terminal (eg, maxNumberLayer-DL 24, maxNumberLayer-UL 12), The maximum number of supportable bands and the number of layers requested by the user terminal for each communication system supported by the base station device (eg, DL-related (maxNumberLayer-EUTRA-DL 16, maxNumberLayer-NR-FR1-DL 8, maxNumberLayer-NR-FR2) -DL 16), UL-related (maxNumberLayer-EUTRA-UL 1, maxNumberLayer-NR-FR1-UL 2, maxNumberLayer-NR-FR2-UL 8)) may be defined. In addition, the user terminal capability defines the maximum number of supportable layers for each band requested by the user terminal 200 . As described above, in the process of reporting the user terminal capability information to the base station apparatus 100, the processor 250 provides only simplified information to the base station apparatus 100, as shown in Table 3 above. Efficient information reporting can be performed. Meanwhile, the processor 250 includes information on the number of layers in the user terminal capability information and provides the information to the base station apparatus 100, but may also provide layer combination information according to a predefined format. The predefined form may include, for example, Combination 1: {18, 4, 2}, which means LTE highest priority assignment. In the predefined form, the combination number (eg, Combination 1) may be defined to indicate the type (eg, LTE) of the communication system that requests the highest priority among the communication systems requesting use. In the {18, 4, 2}, each digit may represent a value indicating the type of a predefined communication system (eg, LTE in the first column, NR FR1 in the second column, NR FR2 in the third column) have. The values written in each digit may be the maximum number of supported layers requested from the communication system. Accordingly, the meaning of Combination 1: {18, 4, 2} is to request LTE highest priority allocation among all communication system types provided by the base station device 100, and to request LTE maximum 18 layer allocation, NR FR1 maximum 4 It may mean information requesting up to two layers request and NR FR2. As another example, Combination 2: {16, 8, 0} requests the layer of the NR FR1 communication system to be allocated with the highest priority, LTE has a maximum of 16 layers, and NR FR 1 may have a meaning of requesting a maximum of 8 layers. . Here, “0” may mean NR FR2 is an unassigned request. As another example, Combination 3: {0, 8, 16} requests allocation of layers of the NR FR2 communication system with the highest priority, NR FR1 requests up to 8 layers, NR FR2 requests up to 16 layers, and LTE It may mean an unassigned request. In order to support the above-described extended type of UE capability, a modification of the current 3GPP scheme may be required.

3 is a diagram illustrating an example of a configuration of a base station apparatus according to an embodiment of the present invention.

Referring to FIG. 3 , the base station apparatus 100 of the present invention may include a base station communication circuit 110 , a base station memory 130 , and a base station processor 150 .

The base station communication circuit 110 may be electrically connected to a plurality of antennas to process signal transmission required for communication coverage operation and reception of a signal transmitted by the user terminal 200 . The base station device 100 may be configured to support a plurality of communication systems (eg, LTE, NR FR1, NR FR2), and in this case, the base station communication circuit 110 is a communication supporting each communication system. circuits may be included. For example, the base station communication circuit 110 may include a first communication circuit supporting the LTE communication system, a second communication circuit supporting the NR FR1 communication system, and a third communication circuit supporting the NR FR2 communication system. It may be electrically connected to a plurality of antennas divided by frequency bands for operating the respective communication systems. At least one communication circuit among a plurality of communication circuits included in the base station communication circuit 110 transmits/receives a signal required for the communication service operation of the user terminal 200 to and from the user terminal 200 under the control of the base station processor 150 . can do.

The base station memory 130 may store various programs and data required for operation of the base station apparatus 100 . For example, the base station memory 130 may store various data and policy information related to each communication program required for operation of a plurality of communication systems and the corresponding communication system settings. That is, the base station memory 130 may store programs and data necessary for operating the LTE communication system, programs and data necessary for operating the NR FR1 communication system, and programs and data required for operating the NR FR2 communication system. In addition, the base station memory 130 may store information necessary for operation of at least one user terminal 200 . For example, the base station memory 130 may store subscription information (eg, rate plan information) of the user terminal 200 , identification information of the user terminal 200 , and device information of the user terminal 200 . In particular, the base station memory 130 may store user terminal capability information provided by the user terminal 200 . The user terminal capability information includes the maximum number of supportable layers of the user terminal, the maximum number of supportable bands and layers to the user terminal for each communication system supported by the base station apparatus, and the maximum supportable layer for the user terminal for each band. number may be included. Alternatively, the user terminal capability information may include numeric information corresponding to the maximum number of supported layers for each communication system type divided by the type of combination (or type, category, and corresponding numeric information) and the number of digits. In the base station memory 130, which user terminal 200 is provided with which layer combination information may be recorded.

The base station processor 150 may transmit and process signals necessary for operation of the base station apparatus 100 , and activate a program. For example, the base station processor 150 may control to transmit system information at a specified period. When receiving user terminal capability information from the user terminal 200 , the base station processor 150 may control to store the corresponding information in the base station memory 130 . The base station processor 150 generates layer combination information (or optimal combination information) allocated by the corresponding user terminal 200 based on the user terminal capability information, and provides the generated combination information to the user terminal 200 . can do. In this process, the base station processor 150 based on the maximum number of supported layers of the user terminal 200 included in the user terminal capability information, the radio resource required by the user terminal 200 (eg, to be used for CA) frequency band and CC setting) can be assigned. Alternatively, the base station processor 150 considers the number of supported layers for each specific system and band within the maximum capability (layer) of the user terminal 200 based on the user terminal capability information EN-DC/NE-DC and CA can be configured.

4 is a diagram illustrating a signal flow diagram between components of a wireless communication system related to user terminal capability reporting according to an embodiment of the present invention.

Referring to FIG. 4 , in relation to operation of a wireless communication system, in step 401 , the base station apparatus 100 may provide system information to the user terminal 200 . In this operation, the base station apparatus 100 may broadcast and transmit system information (eg, SIB) at a predetermined period, and the user terminal 200 may collect the system information through a scan operation.

In step 403 , the user terminal 200 may report user terminal capability information (UE Capability Ext information) to the base station apparatus 100 . The user terminal capability information includes the maximum number of supportable layers requested by the user terminal, the maximum number of supportable bands and the number of layers requested by the user terminal for each communication system supported by the base station apparatus, and each requested by the user terminal. The maximum number of supportable layers per band may be included. Alternatively, the user terminal capability information includes combination information indicating a specific communication system requesting a layer with priority among communication systems supported by the base station apparatus, and classifying the types of communication systems by the number of digits, and the maximum per communication system Numerical information corresponding to the number of supportable layers may be included.

In step 405 , the base station apparatus 100 may configure an optimal combination to be assigned to the user terminal 200 based on information (UE Capability Ext information) provided by the user terminal 200 . For example, the base station apparatus 100 checks the user terminal capability information, checks whether the layers requested by the user terminal 200 can be allocated, and first allocates a specific band (or band) layer of the communication system for which allocation is requested, and , by allocating layers of a specific band of another communication system as needed, the layer configuration may be combined to fit the maximum number of supported layers requested by the user terminal 200 . When the optimal combination configuration is completed, the base station apparatus 100 may provide optimal combination information to the user terminal 200 in step 407 . The user terminal 200 may perform channel setting of the communication circuit 210 based on the received optimal combination information, and transmit/receive data required for communication service operation.

5 is a diagram illustrating an example of a user terminal operating method related to a wireless communication service operating method according to an embodiment of the present invention.

Referring to FIG. 5 , in relation to the user terminal operating method, in step 501 , the processor 250 of the user terminal 200 may determine whether a base station search is requested. The base station search may be performed, for example, in a state in which the user terminal 200 is changed from a turn-off state to a turn-on state or in a state in which a handover is performed. Alternatively, the base station search may be performed according to a user input. In this regard, the user terminal 200 may provide a communication function reset button or a base station search button through the display 240 and perform a base station search in response to a user input. When the base station search is not requested, the processor 250 of the user terminal 200 may process execution of a specified function in step 503 . Performing the specified function does not perform a separate base station search, maintains a communication channel with the currently connected base station device 100, supports a communication function, or outputs information according to execution of a user function installed in the user terminal 200, etc. may include

When a base station search is requested, the processor 250 of the user terminal 200 may check the system information transmitted by the base station device 100 in step 505 . The processor 250 may check the type of communication system supported by the base station apparatus 100 through system information confirmation. The processor 250 may generate user terminal capability information including the maximum number of supportable layers of the user terminal 200 that can be allocated from the base station apparatus 100 in relation to operation of a specified communication function. Alternatively, the processor 250 provides user terminal capability information including the maximum number of supported layers, the maximum number of supportable layers for each communication system supportable by the base station device 100, and the maximum number of supportable layers for each band in each communication system. can create Alternatively, the processor 250 includes combination information (eg, a combination number) for determining the type of communication system requesting the highest priority allocation, and numeric information corresponding to the maximum number of supported layers for each communication system, which is distinguished through the number of digits. to generate user terminal capability information.

In step 507, the processor 250 of the user terminal 200 transmits the user terminal capability information (UE Capability Ext information), in which information on the number of layers desired to be allocated from the base station apparatus 100, is written to the base station apparatus ( 100) can be reported.

In step 509 , the processor 250 of the user terminal 200 may receive optimal combination information from the base station apparatus 100 . The processor 250 of the user terminal 200 may configure a communication channel based on the received optimal combination information.

6 is a diagram illustrating an example of a method of operating a base station apparatus related to a method of operating a wireless communication service according to an embodiment of the present invention.

Referring to FIG. 6 , in relation to the method of operating a base station apparatus according to an embodiment of the present invention, in step 601 , the base station apparatus 100 may transmit system information. The system information may include downlink channel information and uplink channel information supported by the base station apparatus 100 . In addition, the system information may include a type of communication system supported by the base station apparatus 100 , band information supported by each communication system type, and the like. The system information may be transmitted in a broadcast form according to a predetermined period.

In step 603 , the base station apparatus 100 may check whether user terminal capability information (UE Capability Ext information) is received from the user terminal 200 . If there is no reception of the user terminal capability information, the base station apparatus 100 may branch to step 601 and re-perform the operation of transmitting the system information at a predetermined period. The user terminal capability information includes the maximum number of supportable layers of the user terminal, the maximum number of bands and layers supported by the user terminal for each communication system supported by the base station apparatus, and the maximum supportable layer for the user terminal for each band. may contain numbers. Alternatively, the user terminal capability information includes combination information indicating a specific communication system requesting a layer with priority among communication systems supported by the base station apparatus, and classifying the types of communication systems by the number of digits, and the maximum per communication system Numerical information corresponding to the number of supportable layers may be included.

When receiving the user terminal capability information from the characteristic user terminal 200, the base station apparatus 100 performs an optimal combination configuration based on the information received in step 605 and the identification information of the user terminal 200, and the optimal combination Information may be provided to the corresponding user terminal 200 . In the optimal combination configuration process, the base station device 100 checks the rate plan information subscribed by the user terminal 200, communication system type information that the user terminal 200 can operate, and the requested maximum number of supported layers, and the confirmed information A layer combination may be calculated by mutually comparing the resources available for operation by the base station device 100 and the current base station device 100 . In the layer combination calculation process, the base station device 100 may determine whether to set the frequency band and CC to be used for the CA of the user terminal 200 according to a predefined policy. For example, the base station device 100 checks the type of the highest-requested communication system and the maximum number of supported layers identified in the user terminal capability information, and the communication resources of the current base station device 100 (eg, LTE, NR FR1, Band allocation spare resources such as NR FR2), but by checking the same communication resource as the first requested communication system type, it is possible to set the frequency band and CC to be used for CA. When the communication resource of the communication system for which the highest priority is requested is insufficient, the base station apparatus 100 may select another type of communication system and perform resource allocation. In addition, the base station apparatus 100 may perform layer allocation corresponding to the request of the user terminal 200 or determine a different performance rate according to the subscription type of the user terminal 200 . For example, the base station apparatus 100 may combine to increase the performance rate of the layer allocation request of the user terminal 200 subscribing to a relatively high cost rate plan.

As described above, while this specification contains numerous specific implementation details, these are not to be construed as limiting as to the scope of any invention or claim, but rather may be specific to particular embodiments of a particular invention. It should be understood as a description of features.

Also, although acts are depicted in the drawings in a particular order, it should not be construed that all acts shown must be performed or that such acts must be performed in the specific order or sequential order shown to obtain desirable results. In certain cases, multitasking and parallel processing may be advantageous. Further, the separation of various system components of the above-described embodiments should not be construed as requiring such separation in all embodiments, and the program components and systems described may generally be integrated together into a single software product or packaged into multiple software products. You have to understand that you can.

The present description sets forth the best mode of the invention, and provides examples to illustrate the invention, and to enable any person skilled in the art to make or use the invention. This written specification does not limit the present invention to the specific terms presented. Accordingly, although the present invention has been described in detail with reference to the above-described examples, those skilled in the art can make modifications, changes, and modifications to the examples without departing from the scope of the present invention.

Therefore, the scope of the present invention should not be defined by the described embodiments, but should be defined by the claims.

According to the present invention, information used for reporting related to communication service operation of a user terminal is simplified to enable more efficient system construction.

10: Wireless communication system environment
100: base station
110: base station communication circuit
130: base station memory
150: base station processor
200: user terminal
210: communication circuit
230: memory
250: processor

Claims (8)

In the user terminal,
communication circuit;
processor; including;
the processor is
Transmits user terminal capability information to a base station device, receives layer combination information corresponding to providing the user terminal capability information from the base station device, and establishes a communication channel based on the communication circuit based on the layer combination information control to set
The user terminal capability information is
The maximum number of supportable layers requested by the user terminal, the maximum number of supportable bands and the number of layers requested by the user terminal for each communication system supported by the base station device, the maximum number of supportable layers for each band requested by the user terminal User terminal comprising a. According to claim 1,
The maximum number of supportable layers requested by the user terminal for each communication system supported by the base station device is
The maximum number of supportable layers of LTE, the maximum number of supportable layers for each band of LTE, the maximum number of NR FR1 supportable layers, the maximum number of supportable layers for each band of NR FR1, and the maximum number of NR FR2 supportable layers and the above User terminal comprising at least one of the maximum number of supportable layers for each band of NR FR2. 3. The method of claim 2,
the communication circuit
At least among an LTE support communication module supporting the LTE communication system of the base station device, a sub-6GHz support communication module supporting the NR FR1 communication system of the base station device, and a mmWave support communication module supporting the NR FR2 communication system of the base station device A user terminal comprising one. In the user terminal,
communication circuit;
processor; including;
the processor is
Transmits user terminal capability information to the base station device in connection with cell entry by the base station device, receives layer combination information corresponding to the user terminal capability information provision from the base station device, and based on the layer combination information Control to establish a communication channel based on the communication circuit,
The user terminal capability information is
Combination information indicating a specific communication system requesting a layer with priority among communication systems supported by the base station device, and numeric information corresponding to the maximum number of supportable layers for each communication system, classifying the types of communication systems by number of digits User terminal comprising a. 5. The method of claim 4,
The user terminal capability information is
User terminal, characterized in that it includes a designated number information including 0 in response to a communication system that does not request layer allocation. base station communication circuitry;
a base station processor; including;
The base station processor
When system information is transmitted and user terminal capability information is received from the user terminal that has received the system information, layer combination information is generated based on the user terminal capability information, and the layer combination information is provided to the user terminal and
The user terminal capability information is
The maximum number of supportable layers of the user terminal, the maximum number of bands and layers supported by the user terminal for each communication system supported by the base station device, and the maximum number of layers supported by the user terminal for each band. base station device. base station communication circuitry;
a base station processor; including;
The base station processor
When system information is transmitted and user terminal capability information is received from the user terminal that has received the system information, layer combination information is generated based on the user terminal capability information, and the layer combination information is provided to the user terminal and
The user terminal capability information is
Combination information indicating a specific communication system requesting a layer with priority among communication systems supported by the base station device, and numeric information corresponding to the maximum number of supportable layers for each communication system, classifying the types of communication systems by number of digits A base station device comprising a. transmitting, by the user terminal, user terminal capability information to a base station apparatus that has received the system information;
Receiving layer combination information generated based on the user terminal capability information from the base station apparatus; and
Including; setting a communication channel based on the layer combination information;
The user terminal capability information is
including the maximum number of supportable layers of the user terminal, the maximum number of bands and layers supported by the user terminal for each communication system supported by the base station apparatus, and the maximum number of supportable layers for the user terminal for each band;
Combination information indicating a specific communication system requesting a layer with priority among communication systems supported by the base station device, and numeric information corresponding to the maximum number of supportable layers for each communication system, classifying the types of communication systems by number of digits A wireless communication service operating method comprising a.

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