Measurement device, measurement method, and recording medium

Abstract

[Problem] To provide a technology for appropriately evaluating communication characteristics or a performance index in a communication device. [Solution] A measurement device (2830), which is for a communication device (2820) configured to perform communication in a path band that has been set, comprises: a control unit (2831) that sets a first parameter representing a bandwidth used for the communication of the communication device, and a second parameter representing a bandwidth in which resource blocks are actually allocated for the communication of the communication device, the second parameter representing the bandwidth of a filter for characteristics measurement; and a measurement unit (2832) that uses the first parameter and the second parameter to measure a ratio based on a power in the path band and a power in a channel adjacent to the path band.

Description

Measuring device, measuring method and recording medium

[0001] The present disclosure relates to a measurement device, a measurement method, and a recording medium.

[0002] In mobile communication systems, various communication characteristics or performance indicators are defined as standards. For example, one of the standards relating to the communication characteristics or performance indicators of a transmitter (e.g., a base station) is the adjacent channel leakage power ratio (ACLR). The ACLR is the ratio between the average power of a target channel (center channel) and the average power of adjacent channels adjacent to the target channel. If the ACLR is not sufficiently ensured, inter-channel interference occurs. Taking this into consideration, Non-Patent Document 1 describes the ACLR conditions that a base station should satisfy.

[0003] In mobile communication systems, relay devices are sometimes used. A repeater is an example of a relay device. A repeater amplifies a received signal and transmits the amplified signal. Even in a repeater, inter-channel interference occurs if the ACLR is not sufficiently ensured. Non-Patent Document 2 describes the ACLR conditions that a repeater must satisfy. As described above, ACLR is evaluated in various communication devices.

[0004] 3GPP TS 38.104 v17.6.0 (2022-06)3GPP TS 38.106 v17.1.0 (2022-06)

[0005] In measuring ACLR, it is necessary to set parameters required for the measurement. However, in the past, it was sometimes impossible to set the parameters due to the configuration of a communication device (e.g., a repeater). This problem also occurs with other communication characteristics or performance indicators. Examples of other communication characteristics include a cumulative adjacent channel leakage power ratio (CACLR) and an adjacent channel rejection ratio (ACRR).

[0006] In view of the above circumstances, the present disclosure provides a technique that can appropriately evaluate communication characteristics or performance indicators in a communication device.

[0007] In one or more embodiments, a measurement device for a communication device configured to communicate in a set passband is provided. The measurement device includes: control means for setting a first parameter representing a bandwidth used for communication by the communication device; and a second parameter representing a bandwidth to which resource blocks are actually allocated for communication by the communication device and representing a bandwidth of a filter for characteristic measurement. Measurement means for measuring a ratio based on power in a channel within the passband and power in an adjacent channel outside the passband using the first and second parameters. The control means determines a nominal channel bandwidth representing a nominal bandwidth used for communication by the communication device using first information related to a base station, the first information representing a relationship between the operating band of the base station, the channel bandwidth of the base station, and subcarrier spacing (SCS), sets the nominal channel bandwidth as the first parameter, and sets the second parameter using the first parameter.

[0008] In one or more embodiments, a measurement device for a communication device configured to communicate in a set passband is provided. The measurement device includes: control means for setting a first parameter representing a bandwidth used for communication by the communication device; and a second parameter representing a bandwidth to which resource blocks are actually allocated for communication by the communication device and representing a bandwidth of a filter for characteristic measurement; and measurement means for measuring a ratio based on power in a channel within the passband and power in an adjacent channel outside the passband using the first and second parameters. The control means determines a smaller bandwidth of the passband width in the communication device and a predetermined bandwidth as a nominal channel bandwidth representing a nominal bandwidth used for communication by the communication device, sets the nominal channel bandwidth as the first parameter, and sets a value obtained by multiplying the first parameter by a predetermined coefficient as the second parameter.

[0009] In one or more embodiments, a measurement method for a communication device configured to communicate in a set passband is provided. The measurement method includes: setting a first parameter representing a bandwidth used for communication by the communication device; and a second parameter representing a bandwidth to which resource blocks are actually allocated for communication by the communication device and representing a bandwidth of a filter for characteristic measurement; and measuring a ratio based on power in a channel within the passband and power in an adjacent channel outside the passband using the first parameter and the second parameter. The setting includes determining a nominal channel bandwidth representing a nominal bandwidth used for communication by the communication device using first information related to a base station, the first information representing a relationship between the operating band of the base station, the channel bandwidth of the base station, and a subcarrier spacing (SCS), setting the nominal channel bandwidth as the first parameter, and setting the second parameter using the first parameter.

[0010] In one or more embodiments, a measurement method for a communication device configured to communicate in a set passband is provided. The measurement method includes: setting a first parameter representing a bandwidth used for communication by the communication device; and a second parameter representing a bandwidth to which resource blocks are actually allocated for communication by the communication device and representing a bandwidth of a filter for characteristic measurement; and measuring a ratio based on power in a channel within the passband and power in an adjacent channel outside the passband using the first parameter and the second parameter. The setting includes determining a smaller bandwidth of the passband width of the communication device and a predetermined bandwidth as a nominal channel bandwidth representing a nominal bandwidth used for communication by the communication device, setting the nominal channel bandwidth as the first parameter, and setting a value obtained by multiplying the first parameter by a predetermined coefficient as the second parameter.

[0011] In one or more embodiments, a computer-readable recording medium having a program recorded thereon is provided, the program causing at least one processor installed in a communications device configured to communicate in a set passband to: set a first parameter representing a bandwidth used for communications by the communications device; and a second parameter representing a bandwidth to which resource blocks are actually allocated for communications by the communications device and representing a bandwidth of a filter for measuring characteristics; and measure a ratio based on power in a channel within the passband and power in an adjacent channel outside the passband using the first parameter and the second parameter. The setting includes: determining a nominal channel bandwidth representing a nominal bandwidth used for communications by the communications device using first information related to a base station, the first information representing a relationship between the operating band of the base station, the channel bandwidth of the base station, and a subcarrier spacing (SCS); setting the nominal channel bandwidth as the first parameter; and setting the second parameter using the first parameter.

[0012] In one or more embodiments, a computer-readable recording medium having a program recorded thereon is provided, the program causing at least one processor mounted on a communication device configured to communicate in a set passband to set a first parameter representing a bandwidth used for communication by the communication device and a second parameter representing a bandwidth to which resource blocks are actually allocated for communication by the communication device and representing a bandwidth of a filter for characteristic measurement, and measuring a ratio based on power in a channel within the passband and power in an adjacent channel outside the passband using the first parameter and the second parameter. The setting includes determining a smaller bandwidth of the passband width of the communication device and a predetermined bandwidth as a nominal channel bandwidth representing a nominal bandwidth used for communication by the communication device, setting the nominal channel bandwidth as the first parameter, and setting the value obtained by multiplying the first parameter by a predetermined coefficient as the second parameter.

[0013] According to the above configuration, it is possible to appropriately evaluate the communication characteristics or performance index of a communication device. Problems, configurations, and effects other than those described above will become clear from the description of the following embodiments.

[0014] FIG. 1 is a diagram showing an example of the configuration of a wireless communication system according to the first embodiment. FIG. 2 is a diagram showing an example of the configuration of a base station according to the first embodiment. FIG. 3 is a diagram showing an example of the configuration of a repeater according to the first embodiment. FIG. 4 is a diagram showing an example of the configuration of a wireless terminal according to the first embodiment. FIG. 5 is a diagram showing an example of the configuration of a measurement device for a base station according to the first embodiment. FIG. 6 is a diagram showing an example of the configuration of a measurement device for a repeater according to the first embodiment. FIG. 7 is a table showing a method for measuring ACLR in a base station and conditions for ACLR. RB1 is a diagram showing the relationship between a transmission channel and two adjacent channels adjacent to the transmission channel; FIG. 2 is a flowchart showing the processing flow of the measurement device for a base station according to the first embodiment; FIG. 3 is a table showing the relationship between the operating band, "BS channel bandwidth" and SCS; FIG. 4 is a diagram showing the relationship between "BS channel bandwidth", SCS and "transmission bandwidth configuration (N RB 1 is a table showing the relationship between the operating band, "BS channel bandwidth" and SCS. 2 is a table showing the relationship between the "BS channel bandwidth", SCS and "transmission bandwidth configuration (N RB1 is a table showing the relationship between the ACLR measurement method and the ACLR conditions in a repeater. 2 is a table showing the ACLR measurement method and the ACLR conditions in a repeater according to the first embodiment. 3 is a table showing the ACLR measurement method and the ACLR conditions in a repeater according to the first embodiment. 4 is a table showing the ACLR measurement method and the ACLR conditions in a repeater according to the first embodiment. 5 is a table showing the ACLR measurement method and the ACLR conditions in a repeater according to the first embodiment. 6 is a flowchart showing the processing flow of a measurement device for a repeater according to the first embodiment. 7 is a diagram showing the relationship between a nominal channel at the passband edge and two adjacent channels outside the passband. 8 is a table showing the ACLR measurement method and the ACLR conditions in a repeater according to a modification of the first embodiment. Fig. 10 is a table showing a method for measuring ACRR in a repeater and conditions for ACRR. Fig. 11 is a flowchart showing a processing flow of a measurement device for a repeater according to a third embodiment. Fig. 12 is a diagram explaining a method for measuring ACRR according to the third embodiment. Fig. 13 is a diagram showing an example of the configuration of a wireless communication system according to a fourth embodiment. Fig. 14 is a flowchart showing a processing flow of a measurement device according to the fourth embodiment.

[0015] Hereinafter, several embodiments will be described in detail with reference to the accompanying drawings. In this specification and drawings, elements that can be similarly described will be designated by the same reference numerals, and redundant description may be omitted.

[0016] The embodiments described below are merely examples of configurations that can realize the present invention. Each of the following embodiments can be modified or changed as appropriate depending on the device configuration and various conditions. Not all of the combinations of elements included in each of the following embodiments are necessarily essential for realizing the present invention, and some of the elements can be omitted as appropriate. Furthermore, as long as there are no mutual contradictions, configurations that combine multiple configurations described in the following embodiments can also be adopted.

[0017] The description will be given in the following order: 1. First embodiment 1-1. Configuration of wireless communication system 1-2. Configuration of base station 1-3. Configuration of repeater 1-4. Configuration of wireless terminal 1-5. Configuration of measurement device for base station 1-6. Configuration of measurement device for repeater 1-7. Measurement of ACLR in base station 1-8. Measurement of ACLR in repeater 1-9. Effects 1-10. Modifications 2. Second embodiment 3. Third embodiment 4. Fourth embodiment 4-1. System configuration 4-2. Configuration of measurement device 4-3. Processing flow of measurement device 4-4. Parameter settings 5. Other embodiments

[0018] <<1. First Embodiment>> A first embodiment and its modified examples will be described with reference to FIGS. 1 to 22. FIG.

[0019] <1-1. Configuration of Wireless Communication System> FIG. 1 is a diagram showing an example of the configuration of a wireless communication system 1. For example, the wireless communication system 1 is a system that complies with the technical specifications of 3GPP (Third Generation Partnership Project). Specifically, the wireless communication system 1 may be a device that complies with the technical specifications of 5G (5th Generation). Naturally, the wireless communication system 1 is not limited to this example. The wireless communication system 1 includes a base station 100, a repeater 200, and a wireless terminal 300.

[0020] The base station 100 is a node of a radio access network (RAN). The base station 100 has a coverage area 10. The base station 100 performs wireless communication with a wireless terminal (not shown) located within the coverage area 10. Furthermore, the base station 100 performs wireless communication with a wireless terminal 300 via a repeater 200.

[0021] The repeater 200 is a relay device used to extend the coverage area 10 of the base station 100. In this example, the repeater 200 relays wireless communication between the base station 100 and the wireless terminal 300. The repeater 200 amplifies a signal from the base station 100 and transmits the amplified signal to the wireless terminal 300. The repeater 200 amplifies a signal from the wireless terminal 300 and transmits the amplified signal to the base station 100.

[0022] The wireless terminal 300 may be a mobile terminal such as a smartphone, a mobile phone, a tablet, etc. The wireless terminal 300 may also be referred to as a user equipment (UE) or a mobile station.

[0023] In the following description, the link through which a signal is transmitted from the base station 100 to the wireless terminal 300 is referred to as a "downlink (or DL)." The link through which a signal is transmitted from the wireless terminal 300 to the base station 100 is referred to as an "uplink (or UL)."

[0024] 2 is a diagram showing an example of the configuration of the base station 100 according to the first embodiment. For example, the base station 100 is a base station that complies with the 3GPP technical specifications. The base station 100 may be a 5G / NR (New Radio) base station.

[0025] The base station 100 includes a wireless communication unit 110 , a network communication unit 120 , a storage unit 130 , and a processing unit 140 .

[0026] The wireless communication unit 110 is an element for transmitting and receiving wireless signals, and includes, for example, an antenna and a radio frequency (RF) circuit.

[0027] The network communication unit 120 is an element that communicates with a core network (not shown), and includes a network adapter, a network interface card, and the like.

[0028] The storage unit 130 is an element that temporarily or permanently stores programs (instructions) and data used to execute various processes in the base station 100. The storage unit 130 includes volatile memory and non-volatile memory. The volatile memory may include, for example, a random access memory (RAM). The non-volatile memory may include, for example, one or more of a read only memory (ROM), a hard disk drive (HDD), and a solid state drive (SSD).

[0029] The processing unit 140 is an element that provides various functions of the base station 100. The processing unit 140 includes one or more processors. The one or more processors may include, for example, one or more of a central processing unit (CPU), a micro processing unit (MPU), and a microcontroller. The processing unit 140 realizes various functions of the base station 100 by executing programs stored in the storage unit 130.

[0030] As described in Non-Patent Document 1, types of base stations include Type 1-C, Type 1-H, Type 1-O, and Type 2-O. The base station 100 may be any of the above types.

[0031] Type 1-C is a type in which the antenna and transmitter / receiver are connected by a coaxial cable. Type 1-H is a type in which the antenna and transmitter / receiver are connected by a TAB (Transceiver Array Boundary) connector. Type 1-O and Type 2-O are types in which the antenna and transmitter / receiver are integrated and there is no connector between the antenna and transmitter / receiver. Type 1-C, Type 1-H, and Type 1-O are used in FR1 (Frequency Range 1), which ranges from 410 MHz to 7.125 GHz. Type 2-O is used in FR2 (Frequency Range 2), which ranges from 24.25 GHz to 71 GHz. Reference points for measuring communication characteristics or performance indicators are defined according to the above base station types.

[0032] As described in Non-Patent Document 1, classes of base stations include wide area, medium range, and local area.

[0033] <1-3. Repeater Configuration> Fig. 3 is a diagram showing an example of the configuration of the repeater 200 according to the first embodiment. For example, the repeater 200 is a repeater that complies with the 3GPP technical specifications. The repeater 200 may be a 5G / NR repeater. The repeater 200 is configured to perform communication in a set passband.

[0034] The repeater 200 includes a wireless communication unit 210 , a storage unit 220 , and a processing unit 230 .

[0035] The wireless communication unit 210 is an element for transmitting and receiving wireless signals, and includes, for example, an antenna and an amplifier.

[0036] The storage unit 220 is an element that temporarily or permanently stores programs (instructions) and data used to execute various processes in the repeater 200. The storage unit 220 includes volatile memory and nonvolatile memory. The volatile memory may include, for example, a RAM. The nonvolatile memory may include, for example, one or more of a ROM, a HDD, and an SSD.

[0037] The processing unit 230 is an element that provides various functions of the repeater 200. The processing unit 230 includes one or more processors. The one or more processors may include, for example, one or more of a CPU, an MPU, and a microcontroller. The processing unit 230 realizes various functions of the repeater 200 by executing programs stored in the storage unit 220.

[0038] As described in Non-Patent Document 2, the repeater types include Type 1-C and Type 2-O. Type 1-C is used in FR1. Type 2-O is used in FR2. The repeater 200 may be any of the above types.

[0039] As described in Non-Patent Document 2, the repeater classes include wide area, medium range, and local area.

[0040] 4 is a diagram showing an example of the configuration of the wireless terminal 300 according to the first embodiment. For example, the wireless terminal 300 is a wireless terminal that complies with the 3GPP technical specifications. The wireless terminal 300 may be a 5G / NR wireless terminal.

[0041] The wireless terminal 300 includes a wireless communication unit 310 , a storage unit 320 , and a processing unit 330 .

[0042] The wireless communication unit 310 is an element for transmitting and receiving wireless signals, and includes, for example, an antenna and an RF circuit.

[0043] The storage unit 320 is an element that temporarily or permanently stores programs (instructions) and data used to execute various processes in the wireless terminal 300. The storage unit 320 includes volatile memory and non-volatile memory. The volatile memory may include, for example, RAM. The non-volatile memory may include, for example, one or more of a ROM, a HDD, and a SSD.

[0044] The processing unit 330 is an element that provides various functions of the wireless terminal 300. The processing unit 330 includes one or more processors. The one or more processors may include, for example, one or more of a CPU, an MPU, and a microcontroller. The processing unit 330 realizes various functions of the wireless terminal 300 by executing programs stored in the storage unit 320.

[0045] 5 is a diagram showing an example of the configuration of a measurement device 500 for the base station 100 according to the first embodiment. The measurement device 500 is connected to the base station 100. The measurement device 500 measures the ACLR in the base station 100.

[0046] The measuring device 500 includes an interface (IF) 510 , a storage unit 520 , and a processing unit 530 .

[0047] The interface (IF) 510 includes an interface for receiving information necessary for measuring the ACLR. For example, the IF 510 includes an interface for receiving signals and information for measuring the ACLR from the base station 100. The IF 510 may include an interface (e.g., an input device) for receiving input from an operator, and an interface (e.g., an output device) for outputting the ACLR measurement results and evaluation results to the operator.

[0048] The storage unit 520 is an element that temporarily or permanently stores programs (instructions) and data used to execute various processes in the measurement device 500. The storage unit 520 includes volatile memory and non-volatile memory. The volatile memory may include, for example, RAM. The non-volatile memory may include, for example, one or more of a ROM, a HDD, and a SSD.

[0049] The processing unit 530 is an element that provides various functions of the measurement device 500. The processing unit 530 includes one or more processors. The one or more processors may include, for example, one or more of a CPU, an MPU, and a microcontroller. The processing unit 530 realizes various functions of the measurement device 500 by executing programs stored in the storage unit 520.

[0050] The processing unit 530 includes, as functional blocks (functional modules), a control unit 531 and a measurement unit 532. The control unit 531 sets parameters necessary for measuring the ACLR. The measurement unit 532 measures the ACLR using the parameters set by the control unit 531.

[0051] 6 is a diagram showing an example of the configuration of a measuring device 600 for the repeater 200 according to the first embodiment. The measuring device 600 is connected to the repeater 200. The measuring device 600 measures the ACLR in the repeater 200.

[0052] The measuring device 600 includes an interface (IF) 610 , a storage unit 620 , and a processing unit 630 .

[0053] The interface (IF) 610 includes an interface for receiving information necessary for measuring the ACLR. For example, the IF 610 includes an interface for receiving signals and information for measuring the ACLR from the repeater 200. The IF 610 may include an interface (e.g., an input device) for receiving input from an operator, and an interface (e.g., an output device) for outputting the ACLR measurement results and evaluation results to the operator.

[0054] The storage unit 620 is an element that temporarily or permanently stores programs (instructions) and data used to execute various processes in the measurement device 600. The storage unit 620 includes volatile memory and non-volatile memory. The volatile memory may include, for example, a RAM. The non-volatile memory may include, for example, one or more of a ROM, a HDD, and a SSD.

[0055] The processing unit 630 is an element that provides various functions of the measurement device 600. The processing unit 630 includes one or more processors. The one or more processors may include, for example, one or more of a CPU, an MPU, and a microcontroller. The processing unit 630 realizes various functions of the measurement device 600 by executing programs stored in the storage unit 620.

[0056] The processing unit 630 includes, as functional blocks (functional modules), a control unit 631 and a measurement unit 632. The control unit 631 sets parameters necessary for measuring the ACLR. The measurement unit 632 measures the ACLR using the parameters set by the control unit 631.

[0057] <1-7. Measurement of ACLR in Base Station> First, measurement of ACLR in the base station 100 will be described. Hereinafter, the band operated by the base station 100 will be referred to as the "operating band." Furthermore, the channel used for transmission from the base station 100 will be referred to as the "transmission channel" to distinguish it from other channels.

[0058] 7 is a table showing the ACLR measurement method and the ACLR conditions, which is described in Non-Patent Document 1. The ACLR conditions are described as "ACLR limit."

[0059] In the table of FIG. 7, BW Channel represents the "BS channel bandwidth" (see NOTE 1). The "BS channel bandwidth" represents the bandwidth of the transmission channel.

[0060] In the table of FIG. 7, BWConfig stands for "transmission bandwidth configuration" (see NOTE 1). BW Config represents the bandwidth to which resource blocks are actually allocated for transmission from the base station, and represents the bandwidth of the filter for measuring the ACLR. Config is BW Channel Within the bandwidth defined by

[0061] FIG. 8 is a diagram described in Non-Patent Document 1, which shows the relationship between "BS channel bandwidth" and "transmission bandwidth configuration." Channel Corresponds to "Transmission Bandwidth Configuration N RB " is BW Config The "Transmission Bandwidth Configuration" corresponds to the number of resource blocks (N RB ) is shown as BW Config and N RB There is a relationship between BW and SCS as shown in Equation 1. Here, SCS stands for "subcarrier spacing". Config = N RB ×SCS×12 (Formula 1)

[0062] In the table of Figure 7, the first row defines the ACLR measurement method and ACLR conditions for a channel adjacent to the transmission channel. Hereinafter, for convenience, this adjacent channel will be referred to as the "first BS adjacent channel." The second row defines the ACLR measurement method and ACLR conditions for a channel adjacent to the first BS adjacent channel. Hereinafter, this adjacent channel will be referred to as the "second BS adjacent channel."

[0063] Fig. 9 is a diagram showing the relationship between a transmission channel, a first BS adjacent channel, and a second BS adjacent channel. For simplicity of explanation, Fig. 9 shows only the "first BS adjacent channel and second BS adjacent channel" adjacent to the transmission channel on the upper side in the frequency direction. Note that "Filter = BW" in Fig. 9 Config The " notation represents the bandwidth of the filter for measuring the power in each channel.

[0064] According to the first row of the table in FIG. 7, the first BS adjacent channel is BW Channel The center frequency f1 of the first BS adjacent channel is the same as the center frequency f0 of the transmission channel. Channel Furthermore, the filter used in the first BS adjacent channel is defined as a frequency spaced apart by BW Config is a filter with a bandwidth defined by

[0065] The measurement device 500 measures the ACLR for the transmission channel and the first BS adjacent channel as follows: Config The measurement unit 532 then measures the power P0 of the transmission channel. The measurement unit 532 measures the power P0 of the transmission channel with a bandwidth of BW Config The first BS adjacent channel is filtered with a bandwidth of 0. Then, the measurement unit 532 measures the power P1 of the first BS adjacent channel. The measurement unit 532 calculates the ACLR for the transmission channel and the first BS adjacent channel using the formula P0 / P1.

[0066] According to the second row of the table in FIG. 7, the second BS adjacent channel is BW Channel The center frequency f2 of the second BS adjacent channel is 2×BW from the center frequency f0 of the transmission channel. Channel Furthermore, the filter used in the second BS adjacent channel is defined as a frequency spaced apart by BW Config is a filter with a bandwidth defined by

[0067] The measurement device 500 measures the ACLR for the transmission channel and the second BS adjacent channel as follows: The measurement unit 532 measures the power P0 of the transmission channel as described above. The measurement unit 532 measures the BW centered on the center frequency f2. Config The measurement unit 532 then measures the power P2 of the second BS adjacent channel. The measurement unit 532 then calculates the ACLR for the transmission channel and the second BS adjacent channel using the formula P0 / P2.

[0068] In the table of Figure 7, the third row defines the ACLR measurement method and ACLR conditions when the first BS adjacent channel is an E-UTRA channel with a bandwidth of 5 MHz. In this case, the center frequency f1 of the first BS adjacent channel is determined by dividing the center frequency f0 of the transmission channel by (BW Channel The filter used in the first BS adjacent channel is a filter with a predetermined bandwidth (4.5 MHz). The measurement unit 532 calculates the ACLR for the transmission channel and the first BS adjacent channel in the above-described manner.

[0069] In the table of Figure 7, the fourth row defines the ACLR measurement method and ACLR conditions when the second BS adjacent channel is an E-UTRA channel with a bandwidth of 5 MHz. In this case, the center frequency f2 of the second BS adjacent channel is set to (BW Channel The filter used in the second BS adjacent channel is a filter with a predetermined bandwidth (4.5 MHz). The measurement unit 532 calculates the ACLR for the transmission channel and the second BS adjacent channel in the above-described manner.

[0070] Note that the third and fourth lines of the table in Figure 7 are applied when the operating band to be measured by ACLR is also defined for E-UTRA or UTRA, as described in "NOTE 3".

[0071] 10 is a flowchart showing the flow of processing by the measurement device 500 according to the first embodiment. In the following description, it is assumed that the operating band is "n1" belonging to FR1, and the "BS channel bandwidth" is 50 MHz.

[0072] Furthermore, the memory unit 520 of the measuring device 500 stores information necessary for measuring the ACLR. For example, the memory unit 520 stores the table shown in FIG. 7. Furthermore, the memory unit 520 stores the tables shown in FIG. 11 and FIG. 12. FIG. 11 is a part of the table described in Non-Patent Document 1, and shows the relationship between the operating band, "BS channel bandwidth", and SCS. FIG. 12 is a table described in Non-Patent Document 1, and shows the relationship between "BS channel bandwidth", SCS, and "transmission bandwidth configuration (N RB The measuring device 500 refers to the above table stored in the storage unit 520 and executes the following process.

[0073] The control unit 531 receives configuration information necessary for measuring the ACLR (1001). The control unit 531 may receive the configuration information from the base station 100 via the IF 510. The configuration information may include an operating band, a type of the base station 100, an SCS, and a transmission channel bandwidth (i.e., BS channel bandwidth).

[0074] The control unit 531 uses the configuration information to set (derive) parameters necessary for measuring the ACLR (1002). Channel and BW Config Includes:

[0075] The control unit 531 is Channel In other words, the control unit 531 sets the BW Channel Set to 50,000kHz.

[0076] The control unit 531 determines the possible BW values ​​for the first BS adjacent channel and the second BS adjacent channel. Config The maximum value of the final BW Config Set as.

[0077] Specifically, since the operating band is "n1" belonging to FR1, the control unit 531 refers to the table in Fig. 11. According to the table in Fig. 11, when the "BS channel bandwidth" is 50 MHz, the possible SCSs are {15, 30, 60} kHz. The control unit 531 obtains {15, 30, 60} kHz as the set of SCSs.

[0078] Next, the control unit 531 refers to the table in Figure 12 for each SCS in the set of SCSs. If the SCS is 15 kHz, the control unit 531 RB Similarly, the control unit 531 obtains "270" as N when the SCS is 30 kHz. RB (=133), and N when SCS is 60 kHz RB (=65) is obtained.

[0079] The control unit 531 calculates the BW for each SCS using (Equation 1). Config Calculate the value of BW when SCS = 15 kHz. Config = 270 x 15 x 12 = 48,600 kHz When SCS = 30 kHz: BW Config = 133 x 30 x 12 = 47,880 kHz When SCS = 60 kHz: BW Config = 65 x 60 x 12 = 46,800 kHz

[0080] The control unit 531 selects the possible BW Config The maximum value of the values ​​(48,600, 47,880, 46,800) is used as the final BW Config That is, the control unit 531 sets the BW Config Set to 48,600kHz.

[0081] The measurement unit 532 measures BW Channel and BW ConfigThe measurement unit 532 measures the ACLR for the transmission channel and the first BS adjacent channel using the above-described method by referring to the table in Fig. 7. The measurement unit 532 determines whether the ACLR satisfies the ACLR limit condition in the table in Fig. 7.

[0082] The measurement unit 532 measures the ACLR for the transmission channel and the second BS adjacent channel using the above-described method, referring to the table in Fig. 7. The measurement unit 532 determines whether the ACLR satisfies the condition of the ACLR limit in the table in Fig. 7.

[0083] When the operating band is FR2, the control unit 531 refers to the tables in FIG. 13 and FIG. 14 and calculates the BW Config FIG. 13 is a part of a table described in Non-Patent Document 1, showing the relationship between the operating band, "BS channel bandwidth" and SCS. FIG. 14 is a part of a table described in Non-Patent Document 1, showing the relationship between "BS channel bandwidth", SCS and "transmission bandwidth configuration (N RB ))

[0084] <1-8. ACLR Measurement in Repeater> (Outline of this Embodiment) First, the problem to be solved by the configuration of this embodiment will be described. Fig. 15 is a table described in Non-Patent Document 2, which shows the ACLR measurement method and ACLR conditions. Note that the table in Fig. 15 is a table for when the repeater type is Type 1-C and the repeater class is wide area. The ACLR condition is described as "ACLR limit".

[0085] The repeater 200 amplifies received signals within a frequency range defined as a passband and transmits the amplified signals. Unlike the base station 100, the repeater 200 does not recognize the channel bandwidth. Therefore, the concept of nominal channel bandwidth is introduced in the repeater 200, as shown in the table in Figure 15. The nominal channel bandwidth represents the nominal bandwidth used for transmission from the repeater 200.

[0086] As shown in the table of FIG. 15, the nominal channel bandwidth is calculated by the following (Equation 2): where BW passband represents the bandwidth of the passband mentioned above. 100 MHz corresponds to the maximum channel bandwidth defined for the FR1 base station. The function min selects the smaller of the values ​​in the parentheses. min(100 MHz, BW passband ) (Formula 2)

[0087] Figure 16 is a table described in Non-Patent Document 2, which shows the ACLR measurement method and ACLR conditions. As described in the table of Figure 16, the nominal channel bandwidth may be calculated by the following (Equation 3) according to the type and class of the repeater. Note that 400 MHz corresponds to the maximum channel bandwidth defined for an FR2 base station. min(400 MHz, BW passband ) (Formula 3)

[0088] The passband must be within the operating band, so BW passband is less than or equal to the bandwidth of the operating band. passband can be any value as long as it is less than or equal to the bandwidth of the operating band.

[0089] For example, if the passband of the repeater is "n1" which belongs to FR1, and BW passband Assume that BW is 50 MHz. In this case, the nominal channel bandwidth is 50 MHz according to (Equation 2). Using the nominal channel bandwidth, BWChannel and BW Config When the same method as in the case of the base station 100 is used, BW Channel is set to 50,000kHz, and BW Config is set to 48,600 kHz.

[0090] In another example, assume that the passband of the repeater is "n3 (UL: 1710-1785 MHz, DL: 1805-1880 MHz)" belonging to FR1. passband is 75MHz. The nominal channel bandwidth is 75MHz according to (Equation 2). Therefore, BW Channel is set to 75MHz.

[0091] However, in the table of Figure 11, 75 MHz is not specified as a possible value for "BS channel bandwidth". Config As described above, there are cases where the parameters required for measuring the ACLR cannot be set due to the repeater configuration (e.g., passband width). This poses a problem in that the ACLR cannot be properly evaluated in the repeater.

[0092] In order to solve the above problem, in this embodiment, a new parameter BW Nominal The measurement device 600 uses the nominal channel bandwidth to calculate BW Nominal The measurement device 600 sets BW Nominal Using BW Config Then, the measurement device 600 sets BW Nominal and BW Config ACLR is measured using

[0093] BW Nominal represents the bandwidth used for transmission from the repeater 200. Nominal is selected from a number of channel bandwidths predefined as possible values ​​of "BS channel bandwidth". ConfigAs described above, represents the bandwidth to which resource blocks are actually allocated for transmission from the repeater 200, and represents the bandwidth of the filter for measuring the ACLR.

[0094] The storage unit 620 of the measurement device 600 stores information necessary for measuring the ACLR. The storage unit 620 stores tables that define the ACLR measurement method and ACLR conditions for each combination of the type and class of the repeater 200. For example, the storage unit 620 stores the tables shown in Figures 17 to 20. The tables shown in Figures 17 to 20 are used for BW Nominal and BW Config The first column of each of the tables in Figures 17 to 20 defines the ACLR measurement method and ACLR conditions using BW Nominal defines:

[0095] For repeater type 1-C used in FR1, BW Nominal is selected from a plurality of channel bandwidths {5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100} MHz specified as possible values ​​of "BS channel bandwidth" in the table of FIG. 11.

[0096] For repeater type 2-O used in FR2, BW Nominal is selected from a plurality of channel bandwidths {50, 100, 200, 400} MHz defined as possible values ​​of "BS channel bandwidth" in the table of FIG.

[0097] The storage unit 620 also stores information indicating the relationship between the operating band, the "BS channel bandwidth" and the SCS. Specifically, the storage unit 620 stores the tables of Fig. 11 and Fig. 13. Furthermore, the storage unit 620 stores information indicating the relationship between the "BS channel bandwidth", the SCS and the "transmission bandwidth configuration (N RB12 and 14. Specifically, the storage unit 620 stores the table of FIG.

[0098] BW Config is set in the same manner as in the case of the base station 100, using the tables of FIGS.

[0099] Next, for the cases where the operating band belongs to FR1 and where the operating band belongs to FR2, Nominal and BW Config The setting method will be explained in more detail below.

[0100] (When the operating band belongs to FR1) First, the control unit 631 obtains a provisional nominal channel bandwidth according to (Equation 2). The control unit 631 refers to the table in FIG. 11. It is assumed that the provisional nominal channel bandwidth is defined as a possible value of "BS channel bandwidth" in the table in FIG. 11. In this case, the control unit 631 determines the provisional nominal channel bandwidth as the final nominal channel bandwidth. The control unit 631 determines the BW Nominal Set ∑ to the final nominal channel bandwidth above.

[0101] Assume that the provisional nominal channel bandwidth is not defined as a possible value of "BS channel bandwidth" in the table of Fig. 11. In this case, the control unit 631 determines the maximum bandwidth that is equal to or less than the provisional nominal channel bandwidth among the multiple channel bandwidths defined as possible values ​​of "BS channel bandwidth" in the table of Fig. 11 as the final nominal channel bandwidth. Nominal Set ∑ to the final nominal channel bandwidth above.

[0102] Referring to FIG. 11, the control unit 631 NominalThe control unit 631 obtains information about a set of SCSs that can be taken for the BW . The control unit 631 refers to the table in FIG. 12 for each SCS in the set of SCSs. The control unit 631 calculates the BW using (Equation 1) for each SCS. Config The control unit 631 calculates the possible BW Config The maximum value of the final BW Config Set as.

[0103] (When the operating band belongs to FR2) First, the control unit 631 obtains a provisional nominal channel bandwidth according to (Equation 3). The control unit 631 refers to the table in FIG. 13. It is assumed that the provisional nominal channel bandwidth is defined as a possible value of "BS channel bandwidth" in the table in FIG. 13. In this case, the control unit 631 determines the provisional nominal channel bandwidth as the final nominal channel bandwidth. The control unit 631 determines the BW Nominal Set ∑ to the final nominal channel bandwidth above.

[0104] Assume that the provisional nominal channel bandwidth is not defined as a possible value of "BS channel bandwidth" in the table of Fig. 13. In this case, the control unit 631 determines the maximum bandwidth that is equal to or less than the provisional nominal channel bandwidth among the multiple channel bandwidths defined as possible values ​​of "BS channel bandwidth" in the table of Fig. 13 as the final nominal channel bandwidth. Nominal Set ∑ to the final nominal channel bandwidth above.

[0105] Referring to FIG. 13, the control unit 631 Nominal The control unit 631 obtains information about a set of SCSs that can be taken for the BW . The control unit 631 refers to the table in FIG. 14 for each SCS in the set of SCSs. The control unit 631 calculates the BW using (Equation 1) for each SCS. Config The control unit 631 calculates the possible BW Config The maximum value of the final BWConfig Set as.

[0106] 21 is a flowchart showing the processing flow of the measurement device 600 according to the first embodiment. It is assumed that the measurement device 600 measures the ACLR under the following condition 1. (Condition 1) Type of repeater 200: Type 1-C Class of repeater 200: Wide area Operating band of base station 100: n3 Passband width: 75 MHz

[0107] The control unit 631 receives configuration information necessary for measuring the ACLR (2101). The control unit 631 receives the configuration information from the repeater 200 via the IF 610. The control unit 631 may also receive configuration information input by an operator via the IF 610.

[0108] The configuration information includes the type of repeater 200, the class of the repeater 200, the operating band of the base station 100, and the passband width.

[0109] The control unit 631 selects a table required for measuring the ACLR from among the tables stored in the storage unit 620 in accordance with the configuration information. In this example, the type of the repeater 200 is Type 1-C, and the class of the repeater 200 is wide area, so the control unit 631 selects the table in Fig. 17. Furthermore, since the operating band is "n3" belonging to FR1, the control unit 631 selects the table in Fig. 11 and the table in Fig. 12.

[0110] The control unit 631 determines the nominal channel bandwidth (2102). First, the control unit 631 determines the provisional nominal channel bandwidth according to Equation 2. The provisional nominal channel bandwidth is 75 MHz.

[0111] Next, the control unit 631 refers to the table of FIG. 11 and obtains the "BS channel bandwidth" value specified as a possible value for "n3." The obtained set of "BS channel bandwidth" is {5, 10, 15, 20, 25, 30, 35, 40, 45, 50} MHz. The provisional nominal channel bandwidth (75 MHz) is not included in the set of "BS channel bandwidth." In other words, the provisional nominal channel bandwidth is not specified as a possible value for "BS channel bandwidth" in the table of FIG. 11. Therefore, the control unit 631 determines the maximum bandwidth within the set of "BS channel bandwidth" that is equal to or less than the provisional nominal channel bandwidth (75 MHz) as the final nominal channel bandwidth. The control unit 631 determines 50 MHz as the final nominal channel bandwidth.

[0112] The control unit 631 sets (derives) parameters necessary for measuring the ACLR (2103). Nominal and BW Config Includes:

[0113] The control unit 631 Nominal Set to the nominal channel bandwidth (50 MHz) above.

[0114] Referring to FIG. 11, the control unit 631 Nominal The control unit 631 obtains information about the set of SCSs that can be taken for the frequency band (50 MHz). The set of SCSs obtained here is {15, 30, 60} kHz. For each SCS in the set of SCSs, the control unit 631 refers to the table in FIG. 12 and calculates N RB Then, the control unit 631 obtains the BW for each SCS using (Equation 1). Config Calculate the value of BW when SCS = 15 kHz. Config = 270 x 15 x 12 = 48,600 kHz When SCS = 30 kHz: BW Config= 133 x 30 x 12 = 47,880 kHz When SCS = 60 kHz: BW Config = 65 x 60 x 12 = 46,800 kHz

[0115] According to the description in "NOTE 2" in the table of Figure 17, BW Config is the maximum value that can be taken. Config Set to 48,600kHz.

[0116] The measurement unit 632 refers to the first and second rows of the table in FIG. Nominal and BW Config The ACLR is measured using (2104).

[0117] In the table of Figure 17, the first row defines the ACLR measurement method and ACLR conditions for an adjacent channel (nominal channel) outside the passband. Hereinafter, this adjacent channel will be referred to as the "first adjacent channel." The second row defines the ACLR measurement method and ACLR conditions for a channel (nominal channel) adjacent to the first adjacent channel. Hereinafter, this adjacent channel will be referred to as the "second adjacent channel."

[0118] Because the repeater 200 does not recognize the bandwidth and location of its own channel, it evaluates the ACLR assuming that the channel used for transmission from the repeater 200 (nominal channel) is at the passband edge. FIG. 22 is a diagram showing the relationship between the nominal channel at the passband edge and the first and second adjacent channels. In FIG. 22, the nominal channel at the passband edge is labeled as the "transmission nominal channel." For simplicity, only the "first and second adjacent channels" adjacent to the upper side of the passband edge in the frequency direction are shown. As can be seen from FIG. 22, the ACLR measured by the repeater 200 is the ratio of the power within the bandwidth of the nominal channel at the passband edge to the power within the bandwidth of the adjacent nominal channel outside the passband (i.e., the first or second adjacent channel). In FIG. 22, "Filter = BWConfig The notation " represents the bandwidth of the filter for measuring the power in each nominal channel.

[0119] According to the first row of the table in FIG. 17, the first adjacent channel is BW Nominal The center frequency fr1 of the first adjacent channel is fr1 from the passband edge (BW Nominal Furthermore, the filter used in the first adjacent channel is defined as a frequency spaced apart by BW Config is the bandwidth defined by

[0120] The measurement unit 632 measures the ACLR for the nominal channel at the passband edge and the first adjacent channel as follows: Config The measurement unit 632 then measures the power Pr0 of the nominal channel at the passband edge. The measurement unit 632 measures the power Pr0 of the nominal channel at the passband edge with a bandwidth of BW Config The first adjacent channel is filtered with a bandwidth of . Then, the measurement unit 632 measures the power Pr1 of the first adjacent channel. The measurement unit 632 calculates the ACLR for the nominal channel at the passband edge and the first adjacent channel using the formula Pr0 / Pr1. The measurement unit 632 evaluates the ACLR. The measurement unit 632 determines whether the ACLR is equal to or greater than the ACLR limit value (45 dB) defined in the first row of the table in FIG. 17. The measurement unit 632 may output the result of the determination (i.e., the evaluation result) to the output device via the IF 610.

[0121] According to the second row of the table in FIG. 17, the second adjacent channel is BW Nominal The center frequency fr2 of the second adjacent channel is (1.5×BW) from the passband edge. Nominal ) apart. Furthermore, the filter used in the second adjacent channel is defined as a frequency spaced apart by BW Config is the bandwidth defined by

[0122] The measurement unit 632 measures the ACLR for the nominal channel at the passband edge and the second adjacent channel as follows: The measurement unit 632 measures the power Pr0 of the nominal channel at the passband edge as described above. The measurement unit 632 measures the BW Config The second adjacent channel is filtered with a bandwidth of . Then, the measurement unit 632 measures the power Pr2 of the second adjacent channel. The measurement unit 632 calculates the ACLR for the nominal channel at the passband edge and the second adjacent channel using the formula Pr0 / Pr2. The measurement unit 632 evaluates the ACLR. The measurement unit 632 determines whether the ACLR is equal to or greater than the ACLR limit value (45 dB) defined in the second row of the table in FIG. 17. The measurement unit 632 may output the result of the determination (i.e., the evaluation result) to the output device via the IF 610.

[0123] In addition, if it is assumed that the first and second adjacent channels are E-UTRA channels, the measuring device 600 can measure the ACLR as described above based on the third and fourth rows of the table in Figure 17.

[0124] <1-9. Effects> The above configuration has the following effects. Conventionally, there are cases where the parameters required for measuring ACLR cannot be set due to the repeater configuration (e.g., passband width). Therefore, there is a problem that ACLR cannot be properly evaluated in the repeater. In contrast, with the above configuration, the measurement device 600 can set the parameters required for measuring ACLR (BW Nominal and BW Config The measurement device 600 can set the parameter (BW Nominal and BW Config ) can be used to properly assess ACLR.

[0125] <1-10. Modifications> There may be cases where multiple passbands are arranged. The above-described configuration and processing of measurement apparatus 600 may be applied to such cases. When multiple passbands are arranged, the gap between two passbands is called an "inter-passband gap" if the two passbands belong to the same operating band, and is called an "inter-passband gap" if the two passbands belong to different operating bands.

[0126] 23 is a table showing the ACLR measurement method and ACLR conditions when multiple passbands are arranged. Nominal and BW Config The measurement device 600 refers to the table in FIG. Nominal and BW Config ACLR may be measured using

[0127] Additionally, the measurement device 600 may be configured to measure the CACLR, which may be the ratio of a to b: a) the sum of the filtered average powers centered on two adjacently assigned nominal channel center frequencies for each side of the inter-passband gap or inter-pass bandgap; and b) the filtered average power centered on an adjacent frequency channel for each one of the passband edges.

[0128] 24 is a table showing the CACLR measurement method and CACLR conditions when multiple passbands are arranged. Nominal and BW Config The measurement device 600 refers to the table in FIG. Nominal and BW Config CACLR may be measured using the following:

[0129] <<2. Second embodiment>> The control unit 631 controls the BW Nominal and BW ConfigIf the operating band belongs to FR1, the control unit 631 calculates the nominal channel bandwidth according to (Equation 2). Nominal The control unit 631 sets BW Nominal The value obtained by multiplying BW by a predetermined coefficient X is Nominal ×X) to BW Config Set as.

[0130] If the operating band belongs to FR2, the control unit 631 calculates the nominal channel bandwidth according to (Equation 3). Nominal The control unit 631 sets BW Nominal The value obtained by multiplying BW by a predetermined coefficient X is Nominal ×X) to BW Config Set as.

[0131] The coefficient X is, for example, BW Config is set so that it falls within the passband width. For example, the coefficient X may be a value in the range of 0.90 to 0.99. The coefficient X may also be 0.95.

[0132] The control unit 631 may set the coefficient X as follows. It is assumed that the control unit 631 sets the coefficient X under the above condition 1. The control unit 631 obtains the nominal channel bandwidth according to (Equation 2). The nominal channel bandwidth is 75 MHz. The control unit 631 calculates the BW Nominal Set to the nominal channel bandwidth above.

[0133] The control unit 631 refers to the table in Fig. 11 and acquires the value of "BS channel bandwidth" defined as a possible value for "n3". The set of "BS channel bandwidth" acquired here is {5, 10, 15, 20, 25, 30, 35, 40, 45, 50} MHz. The control unit 631 selects the BW NominalThe maximum bandwidth that is equal to or less than 75 MHz is acquired as the first bandwidth BW1. Nominal The maximum bandwidth below (75 MHz) is 50 MHz, so the control unit 631 sets the first bandwidth BW1 to 50 MHz.

[0134] The control unit 631 refers to the table in Fig. 11 using the first bandwidth BW1 (= 50 MHz). The control unit 631 acquires information about the set of SCSs that can be taken for the first bandwidth BW1 (= 50 MHz). The set of SCSs acquired here is {15, 30, 60} kHz. The control unit 631 refers to the table in Fig. 12 for each SCS in the set of SCSs, and selects N RB Then, the control unit 631 calculates the second bandwidth BW2 for each SCS using (Equation 1). The second bandwidth BW2 is calculated as BW Config Similarly, BW2 represents the bandwidth to which resource blocks are actually allocated for transmission from repeater 200. When SCS = 15 kHz: BW2 = 270 x 15 x 12 = 48,600 kHz When SCS = 30 kHz: BW2 = 133 x 30 x 12 = 47,880 kHz When SCS = 60 kHz: BW2 = 65 x 60 x 12 = 46,800 kHz

[0135] The control unit 631 calculates BW2 / BW1 for each SCS. The control unit 631 sets the maximum value of the calculated BW2 / BW1 as the coefficient X. In the above example, the maximum value of BW2 / BW1 is 0.972. Therefore, the control unit 631 sets the coefficient X to 0.972.

[0136] <<3. Third Embodiment>> The above-described configuration and processing of the measurement apparatus 600 may be applied to measuring ACRR, which is the ratio of the average gain in the passband to the average gain of channels adjacent to the passband.

[0137] 25 is a table shown in Non-Patent Document 2, which shows a method for measuring ACRR and conditions for ACRR. The conditions for ACRR are described as "ACRR limit."

[0138] In Figure 25, "min {100 MHz, passband BW}" is essentially the same as the nominal channel bandwidth mentioned above. Furthermore, in measuring ACRR, the BW is used in the same way as ACLR. Config Therefore, the measurement device 600 may be configured to perform filtering using BW Nominal and BW Config ACRR may be measured using:

[0139] FIG. 26 is a flowchart showing the flow of processing by the measurement apparatus 600 according to the third embodiment.

[0140] The control unit 631 receives configuration information necessary for measuring the ACRR (2601). The control unit 631 receives the configuration information from the repeater 200 via the IF 610. The control unit 631 may also receive configuration information input by an operator via the IF 610. The configuration information includes the type of the repeater 200, the class of the repeater 200, the operating band of the base station 100, and the passband width.

[0141] The control unit 631 determines the nominal channel bandwidth (2602) by the method described in the first or second embodiment. Furthermore, the control unit 631 determines the parameter (BW Nominal and BW Config ) is set (2603).

[0142] The measurement unit 632 measures BW Nominal and BW Config The ACRR is measured using the above formula (2604). Fig. 27 is a diagram for explaining the method for measuring the ACRR.

[0143] The measurement unit 632 performs the following processing on the input signal to the repeater 200. The measurement unit 632 measures the BW ConfigThe measurement unit 632 then measures the power Pr0_in of the nominal channel at the passband edge. The measurement unit 632 measures the power Pr0_in of the nominal channel at the passband edge with a bandwidth of BW Config Then, the measurement unit 632 measures the power Pr1_in of the first adjacent channel.

[0144] The measurement unit 632 performs the following processing on the output signal from the repeater 200. The measurement unit 632 measures the BW centered on the center frequency fr0. Config The measurement unit 632 then measures the power Pr0_out of the nominal channel at the passband edge. The measurement unit 632 measures the power Pr0_out of the nominal channel at the passband edge with a bandwidth of BW Config Then, the measurement unit 632 measures the power Pr1_out of the first adjacent channel.

[0145] The measurement unit 632 calculates ACRR according to the following (Equation 4): ACRR = (Pr0_out / Pr0_in) / (Pr1_out / Pr1_in) (Equation 4)

[0146] The measurement unit 632 evaluates the ACRR. The measurement unit 632 determines whether the ACRR is equal to or greater than a predetermined condition (ACRR limit). The measurement unit 632 may output the result of the determination (i.e., the evaluation result) to an output device via the IF 610.

[0147] <<4. Fourth Embodiment>> Next, a fourth embodiment will be described with reference to Figures 28 and 29. The fourth embodiment is an embodiment in which the configurations of the first to third embodiments are more generalized.

[0148] <4-1. System Configuration> Fig. 28 is a diagram showing an example of the configuration of a wireless communication system 2800 according to the fourth embodiment. The wireless communication system 2800 includes a base station 2810 and a communication device 2820. The base station 2810 may have the same configuration as the base station 100 described above. The communication device 2820 is configured to communicate in a set passband. The communication device 2820 may be a relay device used to extend the coverage area of ​​the base station 2810, and may be, for example, a repeater. In this case, the communication device 2820 may have the same configuration as the repeater 200 described above. The communication device 2820 may also be a communication device other than a repeater.

[0149] <4-2. Configuration of the Measuring Device> The measuring device 2830 is a measuring device connected to the communication device 2820. The measuring device 2830 may be connected to the communication device 2820 by wire or wirelessly. The measuring device 2830 includes a control unit 2831 and a measurement unit 2832 as functional modules. The above functional modules may be implemented by one or more processors and / or memories. The one or more processors may include, for example, one or more of a CPU, an MPU, and a microcontroller. The memory may include a volatile memory and a non-volatile memory. The memory may store program code (instructions). The one or more processors may implement the functions of the measuring device 2830 (e.g., the control unit 2831 and the measurement unit 2832) by executing the program code stored in the memory.

[0150] A program that realizes the functions of the measurement device 2830 may be installed in the communication device 2820. That is, the functions of the measurement device 2830 may be executed on the communication device 2820.

[0151] 29 is a flowchart showing the flow of processing by the measurement device 2830 according to the fourth embodiment. The control unit 2831 sets (2901) a first parameter representing the bandwidth used for communication by the communication device 2820, and a second parameter representing the bandwidth to which resource blocks are actually allocated for communication by the communication device 2820 and representing the bandwidth of a filter for characteristic measurement. The first parameter is the above-mentioned BW Nominal and the second parameter may be the above BW Config It may be.

[0152] The measurement unit 2832 measures a ratio based on the power in a channel within the passband and the power in an adjacent channel outside the passband using the first parameter and the second parameter (2902). The ratio may include at least one of an ACLR, a CACLR, and an ACRR.

[0153] 4-4. Setting of parameters The control unit 2831 sets the first parameter (for example, BW Nominal ) and a second parameter (e.g., BW Config ) may be set.

[0154] For example, the control unit 2831 may use first information about the base station 2810 to determine a nominal channel bandwidth representing a nominal bandwidth used for communication by the communication device 2820. The first information represents the relationship between the operating band of the base station 2810, the channel bandwidth of the base station 2810, and the subcarrier spacing (SCS). The control unit 2831 may set the above-mentioned nominal channel bandwidth as a first parameter. The control unit 2831 may use the first parameter to set a second parameter.

[0155] The control unit 2831 determines a first parameter (for example, BW Nominal ) and a second parameter (e.g., BW Config ) may be set.

[0156] For example, the control unit 2831 may determine the smaller bandwidth of the passband width in the communication device 2820 and the predetermined bandwidth as a nominal channel bandwidth representing the nominal bandwidth used for communication by the communication device 2820. The control unit 2831 may set the nominal channel bandwidth as a first parameter. The control unit 2831 may set a value obtained by multiplying the first parameter by a predetermined coefficient as a second parameter.

[0157] According to the above configuration, the communication characteristics or performance index of the communication device 2820 can be appropriately evaluated.

[0158] <<5. Other Embodiments>> The functions of the devices described in this specification may be realized by software, hardware, or a combination of software and hardware. Program code (instructions) constituting the software may be stored, for example, in a computer-readable recording medium inside or outside each device, and may be loaded into memory and executed by a processor at runtime. Alternatively, a non-transitory computer-readable medium on which the program code is recorded may be provided.

[0159] Some or all of the above-described embodiments and modified examples can be described as, but are not limited to, the following supplementary notes.

[0160] (Supplementary Note 1) A measurement device for a communication device configured to communicate in a set passband, comprising: control means for setting a first parameter representing a bandwidth used for communication by the communication device and a second parameter representing a bandwidth to which resource blocks are actually allocated for communication by the communication device and representing a bandwidth of a filter for characteristic measurement; and measurement means for measuring a ratio based on power in a channel within the passband and power in an adjacent channel outside the passband using the first parameter and the second parameter, wherein the control means: determines a nominal channel bandwidth representing a nominal bandwidth used for communication by the communication device using first information related to a base station, the first information representing a relationship between the operating band of the base station, the channel bandwidth of the base station, and a subcarrier spacing (SCS); sets the nominal channel bandwidth as the first parameter; and sets the second parameter using the first parameter.

[0161] (Supplementary Note 2) The measurement device described in Supplementary Note 1, wherein the control means determines the smaller of the passband width in the communication device and a predetermined bandwidth, and if the determined bandwidth is not specified in the first information as a possible value of the channel bandwidth of the base station, determines the largest bandwidth that is less than or equal to the determined bandwidth among at least one channel bandwidth specified as the possible value of the channel bandwidth of the base station as the nominal channel bandwidth.

[0162] (Supplementary Note 3) The measurement device according to Supplementary Note 2, wherein the control means: uses the first information to obtain at least one possible SCS for the first parameter; uses second information about the base station, the second information representing the relationship between the channel bandwidth of the base station, the SCS, and the number of resource blocks used for transmission from the base station, to calculate at least one possible value of the second parameter for the at least one possible SCS; and sets the maximum value of the possible values ​​of the second parameter as the second parameter.

[0163] (Supplementary Note 4) The measurement device according to any one of Supplementary Notes 1 to 3, wherein the ratio includes at least one of: an adjacent channel leakage power ratio (ACLR), a cumulative adjacent channel leakage power ratio (CACLR), and an adjacent channel rejection ratio (ACRR).

[0164] (Supplementary Note 5) A measurement device for a communication device configured to communicate in a set passband, comprising: control means for setting a first parameter representing a bandwidth used for communication by the communication device and a second parameter representing a bandwidth to which resource blocks are actually allocated for communication by the communication device and representing a bandwidth of a filter for characteristic measurement; and measurement means for measuring a ratio based on power in a channel within the passband and power in an adjacent channel outside the passband using the first parameter and the second parameter, wherein the control means determines the smaller bandwidth of the passband width in the communication device and a predetermined bandwidth as a nominal channel bandwidth representing the nominal bandwidth used for communication by the communication device, sets the nominal channel bandwidth as the first parameter, and sets a value obtained by multiplying the first parameter by a predetermined coefficient as the second parameter.

[0165] (Supplementary Note 6) The measurement device according to Supplementary Note 5, wherein the control means sets the coefficient using first information about a base station, the first information representing a relationship between an operating band of the base station, a channel bandwidth of the base station, and a subcarrier spacing (SCS), and second information about the base station, the second information representing a relationship between the channel bandwidth of the base station, the SCS, and a number of resource blocks used for transmission from the base station.

[0166] (Supplementary Note 7) The measurement device described in Supplementary Note 6, wherein the control means: if the first parameter is not specified in the first information as a possible value of the channel bandwidth of the base station, determines as the first bandwidth a bandwidth that is less than or equal to the first parameter and is the largest among at least one channel bandwidth specified as the possible values ​​of the channel bandwidth of the base station; obtains at least one possible SCS for the first bandwidth using the second information; calculates a second bandwidth representing a bandwidth to which resource blocks are actually allocated for communication of the communication device for the at least one possible SCS; and sets the maximum value of the ratio of the first bandwidth to the second bandwidth as the coefficient.

[0167] (Supplementary Note 8) The measurement device according to any one of Supplementary Notes 5 to 7, wherein the ratio includes at least one of: an adjacent channel leakage power ratio (ACLR), a cumulative adjacent channel leakage power ratio (CACLR), and an adjacent channel rejection ratio (ACRR).

[0168] (Supplementary Note 9) A measurement method for a communication device configured to communicate in a set passband, comprising: setting a first parameter representing a bandwidth used for communication by the communication device, and a second parameter representing a bandwidth to which resource blocks are actually allocated for communication by the communication device and representing a bandwidth of a filter for characteristic measurement; measuring a ratio based on power in a channel within the passband and power in an adjacent channel outside the passband using the first parameter and the second parameter, wherein the setting comprises: determining a nominal channel bandwidth representing a nominal bandwidth used for communication by the communication device, using first information about a base station, the first information representing a relationship between an operating band of the base station, a channel bandwidth of the base station, and a subcarrier spacing (SCS); setting the nominal channel bandwidth as the first parameter; and setting the second parameter using the first parameter.

[0169] (Supplementary Note 10) The measurement method described in Supplementary Note 9, wherein determining the nominal channel bandwidth includes: determining a smaller bandwidth of a passband width in the communication device and a predetermined bandwidth; and, if the determined bandwidth is not specified in the first information as a possible value of the channel bandwidth of the base station, determining, as the nominal channel bandwidth, a bandwidth that is equal to or smaller than the determined bandwidth and is the largest among at least one channel bandwidth specified as the possible value of the channel bandwidth of the base station.

[0170] (Supplementary Note 11) The measurement method according to Supplementary Note 10, wherein setting the second parameter includes: obtaining at least one possible SCS for the first parameter using the first information; calculating at least one possible value of the second parameter for the at least one possible SCS using second information about the base station, the second information representing a relationship between the channel bandwidth of the base station, the SCS, and the number of resource blocks used for transmission from the base station; and setting the second parameter to the maximum value among the possible values ​​of the second parameter.

[0171] (Supplementary Note 12) The measurement method according to any one of Supplementary Notes 9 to 11, wherein the ratio includes at least one of: an Adjacent Channel Leakage Power Ratio (ACLR), a Cumulative Adjacent Channel Leakage power Ratio (CACLR), and an Adjacent Channel Rejection Ratio (ACRR).

[0172] (Supplementary Note 13) A measurement method for a communication device configured to communicate in a set passband, comprising: setting a first parameter representing a bandwidth used for communication by the communication device, and a second parameter representing a bandwidth to which resource blocks are actually allocated for communication by the communication device and representing a bandwidth of a filter for characteristic measurement; measuring a ratio based on power in a channel within the passband and power in an adjacent channel outside the passband using the first parameter and the second parameter, wherein the setting comprises: determining a smaller bandwidth of the passband width in the communication device and a predetermined bandwidth as a nominal channel bandwidth representing a nominal bandwidth used for communication by the communication device; setting the nominal channel bandwidth as the first parameter; and setting a value obtained by multiplying the first parameter by a predetermined coefficient as the second parameter.

[0173] (Supplementary Note 14) The measurement method according to Supplementary Note 13, further comprising: setting the coefficient using first information about a base station, the first information representing a relationship between an operating band of the base station, a channel bandwidth of the base station, and a subcarrier spacing (SCS); and second information about the base station, the second information representing a relationship between the channel bandwidth of the base station, the SCS, and a number of resource blocks used for transmission from the base station.

[0174] (Supplementary Note 15) The measurement method according to Supplementary Note 14, wherein setting the coefficient includes: if the first parameter is not specified in the first information as a possible value of the channel bandwidth of the base station, determining, as the first bandwidth, a bandwidth that is equal to or less than the first parameter and is the largest among at least one channel bandwidth specified as the possible values ​​of the channel bandwidth of the base station; using the second information, obtaining at least one possible SCS for the first bandwidth; calculating, for the at least one possible SCS, a second bandwidth that represents a bandwidth to which resource blocks are actually allocated for communication by the communication device; and setting the coefficient to the maximum value of the ratio of the first bandwidth to the second bandwidth.

[0175] (Supplementary Note 16) The measurement method according to any one of Supplementary Notes 13 to 15, wherein the ratio includes at least one of: an Adjacent Channel Leakage Power Ratio (ACLR), a Cumulative Adjacent Channel Leakage power Ratio (CACLR), and an Adjacent Channel Rejection Ratio (ACRR).

[0176] (Supplementary Note 17) A computer-readable recording medium having a program recorded thereon, the computer-readable recording medium causing at least one processor mounted on a communication device configured to communicate in a set passband to execute the following: setting a first parameter representing a bandwidth used for communication by the communication device, and a second parameter representing a bandwidth to which resource blocks are actually allocated for communication by the communication device and representing a bandwidth of a filter for characteristic measurement; measuring a ratio based on power in a channel within the passband and power in an adjacent channel outside the passband using the first parameter and the second parameter, wherein the setting includes: determining a nominal channel bandwidth representing a nominal bandwidth used for communication by the communication device using first information related to a base station, the first information representing a relationship between an operating band of the base station, a channel bandwidth of the base station, and a subcarrier spacing (SCS); setting the nominal channel bandwidth as the first parameter; and setting the second parameter using the first parameter.

[0177] (Supplementary Note 18) A computer-readable recording medium having a program recorded thereon, the computer-readable recording medium causing at least one processor mounted on a communication device configured to communicate in a set passband to execute the following: setting a first parameter representing a bandwidth used for communication by the communication device, and a second parameter representing a bandwidth to which resource blocks are actually allocated for communication by the communication device and representing a bandwidth of a filter for characteristic measurement; and measuring a ratio based on power in a channel within the passband and power in an adjacent channel outside the passband, using the first parameter and the second parameter, wherein the setting includes: determining a smaller bandwidth of the passband width in the communication device and a predetermined bandwidth as a nominal channel bandwidth representing a nominal bandwidth used for communication by the communication device; setting the nominal channel bandwidth as the first parameter; and setting a value obtained by multiplying the first parameter by a predetermined coefficient as the second parameter.

[0178] The disclosures of the above-mentioned Non-Patent Documents 1 and 2 are incorporated herein by reference.

[0179] This application claims priority based on Japanese Patent Application No. 2022-125726, filed on August 5, 2022, the disclosure of which is incorporated herein in its entirety.

[0180] 1: Wireless communication system 100: Base station 200: Repeater 300: Wireless terminal 600: Measuring device 631: Control unit 632: Measuring unit 2830: Measuring device 2831: Control unit 2832: Measuring unit

Claims

1. An apparatus comprising: A control means for determining a nominal channel bandwidth, The control means When the nominal channel bandwidth is not specified as a possible value of the channel bandwidth in the operating band of the base station, a bandwidth that is equal to or smaller than a passband width and is the maximum bandwidth among the channel bandwidths in the operating band of the base station is determined as the nominal channel bandwidth. Device.

2. The nominal channel bandwidth is Adjacent Channel Leakage Power Ratio (ACLR); Cumulative Adjacent Channel Leakage power Ratio CACLR) and Adjacent Channel Rejection Ratio (ACRR); used to measure at least one of the following:

2. The apparatus of claim 1.

3. The passband is the width of a frequency band in which the repeater operates.

3. The apparatus of claim 2.

4. The device comprises: further comprising an input means for inputting a value indicating the passband; The control means determines the nominal channel bandwidth using the passband input from the input means.

4. Apparatus according to any one of claims 1 to 3.

5. The device is a measuring device that measures radio waves emitted by a repeater or the base station.

2. The apparatus of claim 1.

6. A method for an apparatus, comprising: Determining a nominal channel bandwidth; If the determined nominal channel bandwidth is not defined as a possible value of the channel bandwidth in the operating band of the base station, define a bandwidth that is equal to or smaller than the width of the passband and is the maximum bandwidth among the channel bandwidths in the operating band of the base station as the nominal channel bandwidth; Including, method.

7. The nominal channel bandwidth in a repeater Adjacent Channel Leakage Power Ratio (ACLR); Cumulative Adjacent Channel Leakage power Ratio CACLR) and Adjacent Channel Rejection Ratio (ACRR); used to measure at least one of the following: The method according to claim 6.

8. The passband is the width of a frequency band in which the repeater operates. The method according to claim 7.

9. The method comprises: inputting a value indicative of said passband; determining the nominal channel bandwidth from an input value indicating the passband; Further comprising:

9. The method according to any one of claims 6 to 8.

10. The method according to claim 1, A measurement method for measuring radio waves emitted by a repeater or the base station, The method according to claim 6.