WO2022224463A1

WO2022224463A1 - Communication device and base station

Info

Publication number: WO2022224463A1
Application number: PCT/JP2021/016554
Authority: WO
Inventors: 拓真中村; 知也小原; 慎也熊谷; 大輔栗田
Original assignee: 株式会社Ｎｔｔドコモ
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2022-10-27
Also published as: JPWO2022224463A1

Abstract

A communication device comprising a transmission unit for transmitting a first signal to a terminal and a reception unit for receiving a second signal transmitted from the terminal in response to reception of the first signal, wherein the transmission unit uses the second signal as a basis to transmit information regarding the terminal to a base station.

Description

Communication device and base station

The present invention relates to terminals, communication devices, and base stations in wireless communication systems.

In the 3GPP (3rd Generation Partnership Project), 5G or NR (New Radio) and A radio communication system called "NR" (the radio communication system is hereinafter referred to as "NR") is under study. In 5G, various radio technologies and network architectures are being studied in order to meet the requirements of realizing a throughput of 10 Gbps or more and keeping the delay in the radio section to 1 ms or less (for example, Non-Patent Documents 1 and 2 ). In addition, consideration of 6G, which is the next-generation wireless communication system after 5G, has also started.

One of the features of 5G is "multiple connections" in which many devices connect to the NW (network).

　In 6G, more devices than in 5G are expected to be connected to the NW, and examples of such devices include RFID tags (hereinafter referred to as RFID). Note that RFID is an abbreviation for Radio Frequency Identification.

However, terminals such as RFID have lower capabilities than general mobile terminals, and there is a problem that it is difficult to directly transmit information to the base station.

The present invention has been made in view of the above points, and aims to provide a technology that enables transmission of terminal information such as RFID to a base station.

According to the disclosed technology, a transmitting unit that transmits a first signal to a terminal;
a receiving unit that receives a second signal transmitted from the terminal in response to reception of the first signal,
The communication device is provided, wherein the transmitting unit transmits the information of the terminal to the base station based on the second signal.

According to the disclosed technique, a technique is provided that enables transmission of terminal information such as RFID to a base station.

It is a figure which shows the structural example of a radio|wireless communications system. It is a figure which shows the structural example of a radio|wireless communications system. It is a figure which shows the structural example of a radio|wireless communications system. FIG. 4 is a diagram for explaining Example 1; FIG. 4 is a diagram for explaining Example 1; FIG. 4 is a diagram for explaining Example 1; FIG. 11 is a diagram for explaining Example 2; FIG. 11 is a diagram for explaining Example 2; FIG. 11 is a diagram for explaining Example 3-1; FIG. 10 is a diagram for explaining Example 3-2; FIG. 11 is a diagram for explaining Example 3-3; FIG. 11 is a diagram for explaining Example 3-4; FIG. 10 is a diagram for explaining Example 4-1; FIG. 10 is a diagram for explaining Example 4-1; FIG. 13 is a diagram for explaining Example 4-2; FIG. 13 is a diagram for explaining Example 4-2; FIG. 13 is a diagram for explaining Example 4-2; It is a figure showing an example of functional composition of base station 10 in an embodiment of the invention. 2 is a diagram showing an example of a functional configuration of a proposal terminal 20 according to an embodiment of the present invention; FIG. It is a figure which shows an example of functional structure of the intermediate node 35 in embodiment of this invention. It is a figure which shows an example of the hardware constitutions of the apparatus in embodiment of this invention.

Embodiments of the present invention will be described below with reference to the drawings. In addition, the embodiment described below is an example, and the embodiment to which the present invention is applied is not limited to the following embodiment.

Although it is assumed that the wireless communication system of the embodiment of the present invention is an NR or 6G system, the technology according to the present invention is applicable not only to NR or 6G but also to other systems.

(About assignment)
As described above, it is expected that a large number of terminals such as RFID will be connected to the NW in the future. Therefore, first, a problem when the RFID connects to the base station 10 will be described.

FIG. 1 is a diagram showing a base station 10 and a plurality of RFIDs 20 arranged around the base station 10. FIG. As shown in FIG. 1, as the RFID 20, there are an Active RFID 20A and a Passive RFID 20B. Active RFID 20A is a tag that has a battery inside and emits electromagnetic waves by itself, and is capable of communication over tens to hundreds of meters. Passive RFID 20B is a tag that uses external electromagnetic waves such as a reader/writer as a power source, does not have an internal battery, and has a communication distance of about 10m.

Basically, the RFID 20 receives a command from an external device and returns a response to the command. However, as shown in FIG. 1, when the external device is the base station 10, it is difficult for both the Active RFID 20A and the Passive RFID 20B to transmit responses directly to the base station 10 due to coverage problems. There is

(Example of system configuration according to the embodiment)
Hereinafter, the terminal of this embodiment such as RFID will be referred to as a "proposal terminal". In this embodiment, intermediate node 35 is provided between base station 10 and proposing terminal 20 . The intermediate node 35 receives the information transmitted from the proposing terminal 20 and transmits the information to the base station 10 . Thereby, the cellular connection of the proposal terminal 20 is realized. Note that the intermediate node 35 may be the Leader 30 described later, or may be the Supporter 40 .

FIG. 2 shows an example of the system configuration in this embodiment. In the example shown in FIG. 2, as an example, an area A (also referred to as cell A) where a plurality of Active RFID proposal terminals 20A exist and an area B (cell B) where a plurality of Passive RFID proposal terminals 20B exist may be called) is shown.

In the example of FIG. 2, area A is provided with an intermediate node 35A, and area B is provided with an intermediate node 35B. In area A, as an example, communication in the direction (UL) from the proposing terminal 20A to the intermediate node 35A is performed between the proposing terminal 20A and the intermediate node 35A. In area B, two-way communication is performed between the proposing terminal 20B and the intermediate node 35B.

The intermediate node 35 may be a UE (User Equipment), an IAB (Integrated access and backhaul) node, a base station (gNB, etc.), or a device other than these There may be. "Intermediate nodes" may also be referred to as "communication devices." Also, the "proposing terminal" may be called a "terminal". The following describes the operation assuming that the intermediate node 35 is the UE.

The base station 10 is a device that provides one or more cells and performs wireless communication with the intermediate node 35 (or the proposing terminal 20). A physical resource of a radio signal is defined in the time domain and the frequency domain. The time domain may be defined by the number of OFDM symbols, and the frequency domain may be defined by the number of subcarriers or resource blocks. Also, a TTI (Transmission Time Interval) in the time domain may be a slot, or a TTI may be a subframe.

The base station 10 can perform carrier aggregation in which multiple cells (multiple CCs (component carriers)) are bundled and communicated with the intermediate node 35 . In carrier aggregation, one PCell (primary cell) and one or more SCells (secondary cells) are used.

The base station 10 transmits synchronization signals, system information, etc. to the intermediate node 35 . Synchronization signals are, for example, NR-PSS and NR-SSS. System information is transmitted, for example, on NR-PBCH or PDSCH, and is also called broadcast information.

When using a UE as the intermediate node 35, the intermediate node 35 is a communication device with a wireless communication function such as a smart phone, mobile phone, tablet, wearable terminal, or M2M (Machine-to-Machine) communication module. The intermediate node 35 receives a control signal or data from the base station 10 on the DL and transmits the control signal or data to the base station 10 on the UL, thereby using various communication services provided by the wireless communication system. can.

The intermediate node 35 is capable of performing carrier aggregation in which multiple cells (multiple CCs (component carriers)) are bundled and communicated with the base station 10 . In carrier aggregation, one PCell (primary cell) and one or more SCells (secondary cells) are used. A PUCCH-SCell with PUCCH may also be used.

In addition, the intermediate node 35 includes a function of transmitting a command to the proposing terminal 20 and receiving a response from the proposing terminal 20 . Note that the command may be called the first signal, and the response may be called the second signal.

(Regarding proposal terminal 20)
The proposing terminal 20 according to the present embodiment is, for example, a terminal having one or more of the following functions (1) to (4). "A/B" means "A or B, or both A and B."

(1) Does not have the function of demodulating/decoding specific/arbitrary signals from the base station 10/intermediate node 35;

(2) When receiving a specific/arbitrary signal (eg, command) from the base station 10/intermediate node 35, it transmits a specific signal (eg, response).

(3) Perform the operation (1) or (2) above for a signal of a specific frequency.

(4) Has an RFID function.

It should be noted that the definition (function) of the proposal terminal 20 is not limited to the above. For example, the proposal terminal 20 may be a terminal that performs sidelink communication, Bluetooth (registered trademark), ZigBee (registered trademark), wireless LAN, or the like.

(Concerning the state in which the proposed terminal 20 is connected to the cellular)
In the present embodiment, the state in which the proposing terminal 20 is connected to the cellular network may be any one or more of the following states (1) to (3).

(1) An identifier associated with the proposed terminal 20 is registered in the base station 10/NW.

(2) The identifier of the intermediate node 35 associated with the proposed device 20 is registered in the base station 10/NW.

(3) The intermediate node 35 associated with the proposed device 20 transitions to RRC connected.

It should be noted that the one or more proposal devices 20 linked to the intermediate node 35 are the proposal devices 20 grouped with respect to the intermediate node 35 .

(About Leader and Supporter)
In the radio communication system according to the present embodiment, the intermediate node 35 is provided with the Leader 30 or the Supporter 40, or both the Leader 30 and the Supporter 40. FIG. FIG. 3 shows a configuration example in which the Leader 30 and the Supporter 40 are provided. Hereinafter, an operation example of the leader 30 will be described as a first embodiment, and an operation example of the supporter 40 will be described as a second embodiment. Hereinafter, in addition to Examples 1 and 2, Examples 3 and 4 will be described. All the embodiments may be combined and implemented.

(Example 1: About Leader 30)
The Leader 30 is an intermediate node that transmits a command to the proposing terminal 20 existing in the vicinity of the Leader 30 to transmit a response. The leader 30 may receive the response from the proposing terminal 20 , and the supporter 40 described later may receive the response from the proposing terminal 20 .

<Operation example of Leader 30>
When the base station 10 requests information on the proposing terminal 20 associated with the leader 30, for example, the leader 30 is triggered by the base station 10 and acquires the information on the proposing terminal 20 based on the trigger. More specifically, for example, the leader 30 receives a trigger signal from the base station 10, transmits a command requesting information to the proposing terminal 20, and receives the command from the proposing terminal 20. Receive a response.

Note that the leader 30 may communicate with the proposing terminal 20 as necessary (eg, send commands, receive responses) even when not triggered by the base station 10 side.

<Signal transmission and reception opportunity of Leader 30>
A Command Occasion (command transmission opportunity) for transmitting a command for detecting the proposing terminal 20 may be provided to the leader 30 . Also, the leader 30 may be provided with a Detection Occasion (response reception opportunity) for monitoring a response from the proposal terminal 20 .

Both Command Occasion and Detection Occasion may be time resources, frequency resources, or time/frequency resources.

FIG. 4 shows an example of Command Occasions and Detection Occasions arranged as time resources in the time direction. In the example of FIG. 4, Leader 30 sends a command on Command Occasion and monitors a response on Detection Occasion.

The number of Command Occasions and Detection Occasions may be one or more.

<Regarding Occasion setting information (Configuration) and Availability>
For both Command Occasion and Detection Occasion, the setting information may be set in the Leader 30 in advance, or may be notified (including updated) from the base station 10 to the Leader 30 .

The method of notifying the setting information from the base station 10 to the leader 30 may be one of SIB, DCI, MAC CE, and RRC Signaling, or may be other than these.

For both Command Occasion and Detection Occasion, the availability may be implemented by the leader 30 or may be notified (including updated) from the base station 10 to the leader 30 .

The availability notification method from the base station 10 to the leader 30 may be SIB, DCI, MAC CE, or RRC Signaling, or may be other than these.

<Specific example of Occasion setting>
The setting of Occasion (Configuration) is not limited to a specific setting method, but, for example, either option 1 or option 2 below may be set.

Option 1:
Using a specific channel or a specific Signal as a reference, it is set with an offset in the time direction/frequency direction from the reference. A specific channel may be an existing channel such as PDCCH or PDSCH, or a new channel. The specific Signal may be an existing Signal such as SSB, RS, or a new Signal.

Option 2: You may set the time position/frequency position of Occasion with an absolute value.

　Figures 5 and 6 show an example of Option 1. FIG. 5 shows an example in which Command Occasions or Detection Occasions are arranged at time positions separated by a certain offset time with respect to the central time position of the SSB.

FIG. 6 shows an example in which Command Occasions or Detection Occasions are arranged at frequency positions separated by a certain offset from the frequency position at the lower end of the SSB in the frequency direction.

The above offset may be the value specified in the specification, or the value notified from the base station 10 to the leader 30 by one of SIB, DCI, MAC CE, and RRC Signaling There may be.

The leader 30 that performs the operation described in the first embodiment can appropriately detect the proposing terminal 20 and transmit information on the proposing terminal 20 to the base station 10 .

(Example 2: About Supporter 40)
The Supporter 40 is an intermediate node that receives the response from the proposing terminal 20 and notifies the Leader 30 or the base station 10 of the response. The Supporter 40 does not send a command for detecting the proposing terminal 20 . The information notified by the Supporter 40 to the Leader 30 or the base station 10 may be the response itself, or may be information of the proposing terminal 20 based on the response (eg, an identifier included in the response). Similarly, the information that the leader 30 notifies to the base station 10 may be the response itself, or information of the proposing terminal 20 based on the response (eg, the identifier included in the response).

<Signal transmission/reception opportunity of Supporter 40>
A Detection Occasion for monitoring a response from the proposal terminal 20 may be provided for the Supporter 40 .

Also, the Supporter 40 may be provided with a Response Occasion for notifying the base station 10 or the Leader 30 of the received response. Note that the Supporter 40 may notify the base station 10 or the Leader 30 that there was no response when no response was received in the Detection Occasion. The Occasion that notifies the base station 10 or the Leader 30 that there was no response may be the Response Occasion.

Both Detection Occasion and Response Occasion may be time resources, frequency resources, or time/frequency resources.

FIG. 7 shows an example of Command Occasion and Detection Occasion in Leader 30, and an example of Detection Occasion and Response Occasion in Supporter 40.

For example, in the example of FIG. 7, Leader 30 sends a command on Command Occasion, Supporter 40 receives a response on Detection Occasion, and sends a response on Response Occasion. The Leader 30 may receive the response sent from the Supporter 40 at the Detection Occasion shown in FIG. .

It should be noted that the number of both Detection Occasion and Response Occasion may be one or may be plural.

<Regarding Occasion setting information (Configuration) and Availability (executability) for Supporter 40>
The setting information for both Detection Occasion and Response Occasion may be set in the supporter 40 in advance, or may be notified (including updated) from the base station 10 to the supporter 40 .

The method of notifying the setting information from the base station 10 to the Supporter 40 may be either SIB, DCI, MAC CE, or RRC Signaling, or may be other than these.

The availability of both Detection Occasion and Response Occasion may be implemented by the Supporter 40 or may be notified (including updated) from the base station 10 to the Supporter 40 .

The availability notification method from the base station 10 to the supporter 40 may be SIB, DCI, MAC CE, or RRC Signaling, or may be other than these.

<Specific example of Occasion setting for Supporter 40>
The Occasion setting (Configuration) for the Supporter 40 is not limited to a specific setting method, but may be set by, for example, one of the following options 1 to 3.

Option 1:
Using a specific channel or a specific Signal as a reference, it is set with an offset in the time direction/frequency direction from the reference. The specific channel may be an existing channel such as PDCCH or PDSCH, or a new channel. The specific Signal may be an existing Signal such as SSB, RS, or a new Signal.

Option 2:
Command Occasion or Detection Occasion of Leader 30 may be used as an offset reference in Option 1.

Option 3:
You may set the time position/frequency position of Occasion with an absolute value.

An example of option 2 is shown in FIG. In the example of FIG. 8, the end of the Detection Occasion time position for the Supporter 40 is placed at a time position offset by the offset time from the end of the Detection Occasion time position for the Leader 30 .

The above offset may be the value specified in the specification, or the value notified from the base station 10 to the Supporter 40 by one of SIB, DCI, MAC CE, and RRC Signaling There may be.

<Operation Example of Supporter 40>
When the information of the proposing terminal 20 is received in the Detection Occasion, the Supporter 40 may perform one of the following options 1 to 3.

Option 1:
The Supporter 40 always notifies the Leader 30 or the base station 10 of the information received from the proposing terminal 20 .

Option 2:
The Supporter 40 notifies the information received from the proposing terminal 20 to the Leader 30 or the base station 10 when requested by the Leader 30 or the base station 10 .

Option 3:
The Supporter 40 notifies the information received from the proposing terminal 20 to the Leader 30 or the base station 10 only when it determines that the Leader 30 has not received the response from the proposing terminal 20 .

The method by which the Supporter 40 determines whether or not the response from the proposing terminal 20 has reached the Leader 30 is not limited to a specific method. It may be decided. For example, if the distance is equal to or greater than a threshold, it may be determined that the response will not reach, and if the distance is less than the threshold, it may be determined that the response will reach. The distance between the proposing terminal 20 and the Leader 30 may be calculated by the Supporter 40 from, for example, the position information of the proposing terminal 20 and the position information of the Leader 30, or the distance information may be notified from the Leader 30 or the base station 10. good too.

Also, the above threshold may be preset in the Supporter 40 or may be notified from the base station 10 to the Supporter 40 . When notified from the base station 10 to the Supporter 40, it may be notified by any of DCI, MAC CE, and RRC Signaling.

<Change to Leader30>
The Supporter 40 may be instructed by the base station 10 to become the Leader 30 . Conversely, Leader 30 may be instructed by base station 10 to become Supporter 40 .

The above instructions from the base station 10 may be performed in any one of SIB, DCI, MAC CE, RRC Signaling, or may be performed in other ways.

<Notification of surrounding leaders>
The Supporter 40 may be notified by the base station 10 of one or a plurality of Leaders 30 existing around the Supporter 40 . The notification method from the base station 10 may be SIB, DCI, MAC CE, or RRC Signaling, or may be other than these.

Also, the information notified from the base station 10 may be the identifier (C-RNTI, UE ID, etc.) of the leader 30 existing in the vicinity, its position information, or both of these. good too. Also, the information notified from the base station 10 may be information indicating only that the leader 30 exists in the vicinity.

The information transmitted from the proposing terminal 20 can be appropriately received by the supporter 40 that operates as described in the second embodiment, and the information of the proposing terminal 20 can be transmitted to the base station 10 .

(Example 3)
Next, Example 3 will be described. In the third embodiment, processing for detecting the proposing terminal 20 by the leader 30 or the base station 10 will be described. When the leader 30 or the base station 10 detects one or more proposed terminals 20, the one or more proposed terminals 20 form a group. In other words, the process of detecting the proposing terminals 20 is also the process of grouping the proposing terminals 20 . Moreover, performing the detection process again after performing a certain grouping is also to update the grouping. Examples 3-1 to 3-4 will be described below as specific examples.

<Example 3-1>
In the embodiment 3-1, the leader 30 transmits a command to the proposing terminal 20 to detect the proposing terminals 20 existing around the leader 30 . One or more proposed terminals 20 detected are grouped.

An operation procedure example in the embodiment 3-1 will be described with reference to FIG. Although only one proposal terminal 20 is shown in FIG. 9, a plurality of proposal terminals 20 may exist. Even when there are a plurality of proposal terminals 20, each proposal terminal 20 performs the operation shown in FIG. The same applies to FIGS. 10 to 14, 16 and 17. FIG.

In S101, the leader 30 transmits a command to the proposing terminal 20. In S<b>102 , the proposal terminal 20 returns a response to the Leader 30 .

In S103, the leader 30 notifies the base station 10 of the received information on the proposed terminal 20. The information of the proposing terminal 20 may be, for example, an identifier of the proposing terminal 20, position information of the proposing terminal 20, both of these, or information other than these. good too.

The base station 10 associates the information on the proposed terminal 20 notified from the Leader 30 with the information on the Leader 30 and stores them in the storage device. In addition, the information of the Leader 30 may be an identifier (identification information) of the Leader 30 . This allows grouping of proposal terminals 20 for a specific Leader 30 .

Also, the base station 10 can request information on the proposing terminal 20 . When the base station 10 requests the information of the proposing terminal 20, for example, the base station 10 transmits a trigger signal to the leader 30, and the leader 30 is triggered by receiving the signal, and sends the information to the proposing terminal 20. Start sending commands. The leader 30 may communicate (command, response) with the proposing terminal 20 without a trigger from the base station 10 and notify the base station 10 of the result (eg, information on the proposing terminal 20).

<Example 3-2>
Next, Example 3-2 will be described. In Proposal 3-2, a command is sent from the Leader 30, and grouping is performed by sending information on the proposing terminal 20 to the base station 10 via the Supporter 40. An example of the operation procedure in Example 3-2 is shown in FIG. will be described with reference to

In S201, the leader 30 transmits a command to the proposing terminal 20. In S202, the proposal terminal 20 transmits a response. In this example, the Supporter 40 receives the response.

In S203, the Supporter 40 transmits information on the proposing terminal 20 to the base station 10 or the Leader 30, or to both the base station 10 and the Leader 30, based on the response received from the proposing terminal 20. When the information on the proposing terminal 20 is received from the supporter 40 , the leader 30 may transmit the information on the proposing terminal 20 to the base station 10 .

The base station 10 may perform grouping by linking the received information on the proposing terminal 20, the information on the Leader 30, and the information on the Supporter 40 and storing them in the storage device.

Also, the Leader 30 may perform grouping by linking the received information of the proposal terminal 20 and the information of the Supporter 40 that notified the information about the proposal terminal 20 and storing them in the storage device.

If the Supporter 40 has the capability to become the Leader 30, the base station 10 may transmit an instruction to the Supporter 40 to make the Supporter 40 the Leader 30 in S204. Thereafter, when the base station 10 requests information on the proposing terminal 20 , the Supporter 40 that has become a leader may be triggered by the base station 10 to start communication with the proposing terminal 20 . In other words, the supporter 40 that has become a leader may transmit the command to the proposal terminal 20 .

Also, the base station 10 may notify the Leader 30 that the Supporter 40 has become the Leader. As a result, the grouping by the Leader 30 can be released.

If the Supporter 40 does not become a Leader, the base station 10 transmits a request for information on the proposing terminal 20 to the Leader 30 linked to the proposing terminal 20 in order to acquire information on the proposing terminal 20 . The Leader 30 that has received the request transmits the command. A response to the command is received by the Supporter 40, for example. Then, for example, the requested information on the proposed terminal 20 is transmitted from the Supporter 40 to the base station 10 .

<Example 3-3>
Next, Example 3-3 will be described. In Proposal 3-3, grouping is performed by sending a command from the base station 10 and sending information on the proposing terminal 20 to the base station 10 via the leader 30 . An operation procedure example in the embodiment 3-3 will be described with reference to FIG.

In S301, the base station 10 transmits a command to the proposing terminal 20. In S<b>302 , the proposal terminal 20 returns a response to the Leader 30 . In S<b>303 , the leader 30 transmits the information on the proposing terminal 20 received from the proposing terminal 20 to the base station 10 .

The base station 10 that has received the information of the proposing terminal 20 can group the proposing terminal 20 by linking the information of the proposing terminal 20 and the information of the leader 30 and storing them in the storage device.

Note that the base station 10 can request information on the proposing terminal 20 . When the base station 10 requests the information of the proposing terminal 20, the base station 10 transmits a trigger signal to the leader 30, and the leader 30 is triggered by receiving the signal and transmits a command to the proposing terminal 20. to start. The leader 30 may communicate (command, response) with the proposing terminal 20 without a trigger from the base station 10 and notify the base station 10 of the result (eg, information on the proposing terminal 20).

<Example 3-4>
Next, Example 3-4 will be described. In Proposal 3-4, grouping is performed by sending a command from the base station 10 and sending information on the proposing terminal 20 to the base station 10 via the supporter 40 . An example of the operation procedure in Example 3-4 will be described below with reference to FIG.

In S401, the base station 10 transmits a command to the proposing terminal 20. In S402, the proposal terminal 20 transmits a response. In this example, the Supporter 40 receives the response. Note that the Leader 30 may receive the response, or both the Leader 30 and the Supporter 40 may receive the response.

In S403, the Supporter 40 transmits the information of the proposing terminal 20 to the base station 10 or the Leader 30, or to both the base station 10 and the Leader 30, based on the response received from the proposing terminal 20. When the information on the proposing terminal 20 is received from the supporter 40 , the leader 30 may transmit the information on the proposing terminal 20 to the base station 10 .

Also, the Leader 30 may perform grouping by linking the received information about the proposal terminal 20 and the information of the Supporter 40 that notified the information about the proposal terminal 20 and storing them in the storage device.

If the Supporter 40 has the capability to become the Leader 30, the base station 10 may transmit an instruction to the Supporter 40 to make the Supporter 40 the Leader 30 in S404. Thereafter, when the base station 10 requests information on the proposing terminal 20 , the Supporter 40 that has become a leader may be triggered by the base station 10 to start communication with the proposing terminal 20 . In other words, the supporter 40 that has become a leader may transmit the command to the proposal terminal 20 .

Also, the base station 10 may notify the Leader 30 that the Supporter 40 has become the Leader. As a result, the grouping by the leader 30 is canceled.

According to the third embodiment, information on the proposing terminal 20 can be transmitted to the base station 10 by the Leader 30 or the Supporter 40, so the base station 10 can detect and group the proposing terminal 20.

(Example 4)
Next, Example 4 will be described. In a fourth embodiment, an example procedure for the NW (that is, the base station 10) to acquire information on the proposing terminal 20 will be described. It should be noted that the fourth embodiment is assumed to be an operation after one of the operations of the third embodiment is performed and grouping is performed. Examples 4-1 and 4-2 will be described below as specific examples.

<Example 4-1>
First, with reference to FIGS. 13 and 14, an operation procedure example in the embodiment 4-1 will be described. In S501 of FIG. 13, the base station 10 requests command transmission from the leader 30 associated with the proposing terminal 20 whose information is to be obtained. In addition to the Leader 30 associated with the proposing terminal 20, the base station 10 may request other Leaders 30 existing around the Leader 30 to transmit commands.

In S501, the base station 10 transmits any one or more of the following information to the targeted Leader 30 or its surrounding Supporters 40, and the Leader 30 and the Supporter 40 transmit from the base station 10 You may receive the information provided. The following information may be transmitted at the timing of S501, may be transmitted before the timing of S501, or may be transmitted after the timing of S501.

- Command transmission instruction - Identifier of corresponding proposed terminal 20 - Location information of target Leader 30 and location information of Supporters 40 existing around it - Configuration of Command Occasion/Detection Occasion notified to Leader 30
・Availability of Command Occasion/Detection Occasion notified to Leader 30
- Configuration of Detection Occasion/Response Occasion notified to Supporter 40
- Availability of Detection Occasion/Response Occasion notified to Supporter 40
Regarding the notification method for notifying information from the base station 10 to the leader 30 or the supporter 40, DCI, MAC CE, RRC signaling, or other methods may be used.

Upon receiving the command transmission instruction from the base station 10, the leader 30 transmits the command to the target proposal terminal 20 in S502. In S503, the proposing terminal 20 transmits a response, and the leader 30 that has received the response transmits information on the proposing terminal 20 to the base station 10 in S504.

The Supporter 40 may receive the response as shown in S513 of FIG. In S<b>514 , the Supporter 40 that has received the response transmits information on the proposing terminal 20 to the Leader 30 or the base station 10 .

If neither the Leader 30 nor the Supporter 40 obtains a response, or if the NW (base station 10) does not obtain the information of the proposed terminal 20 requested by the NW (base station 10), the Leader 30 selects one of Option 1 and Option 2 below. Either action may be performed.

Option 1:
The leader 30 determines that the target proposing terminal 20 is excluded from the leader 30 grouping target, and notifies the base station 10 that the target proposing terminal 20 is excluded from the leader 30 grouping target.

Option 2:
Before executing Option 1, the Leader 30 may repeat the command transmission multiple times. The number of repetitions may be set in the leader 30 in advance, or may be notified from the base station 10 to the leader 30 .

It should be noted that the reporting method for reporting information from the base station 10 to the Leader 30 or Supporter 40 may be SIB, DCI, MAC CE, RRC signaling, or other methods.

<Example 4-2>
Next, an operation procedure example in the embodiment 4-2 will be described with reference to FIGS. 15 to 17. FIG. As shown in S601 and S602 of FIG. 15 , the base station 10 first sends the following information to the Leader 30 associated with the proposed terminal 20 from which information is to be obtained, and to the Supporters 40 around the Leader 30 that is the target. Any one or more of the information is transmitted, and the Leader 30 and its surrounding Supporters 40 receive the information transmitted from the base station 10 . In addition to the Leader 30 associated with the proposed terminal 20, the base station 10 also transmits one or more of the following information to other Leaders 30 existing around the Leader 30. You may

- Command transmission timing from the base station 10 - Identifier of the relevant proposed terminal 20 - Location information of the target Leader 30 and location information of the Supporters 40 existing around it - Configuration of the Detection Occasion notified to the Leader 30
・Availability of Detection Occasion notified to Leader 30
- Configuration of Detection Occasion/Response Occasion notified to Supporter 40
- Availability of Detection Occasion/Response Occasion notified to Supporter 40
Note that the reporting method for reporting information from the base station 10 to the leader 30 or the supporter 40 may be DCI, MAC CE, RRC signaling, or other methods.

In S611 of FIG. 16, the base station 10 transmits a command to the proposing terminal 20, and the proposing terminal 20 receives the command. In S612, the proposing terminal 20 transmits a response, and the leader 30 that has received the response transmits information on the proposing terminal 20 to the base station 10 in S613.

The supporter 40 may receive the response transmitted from the proposal terminal 20, as shown in S621 of FIG. The Supporter 40 that has received the response transmits the information of the proposing terminal 20 to the Leader 30 or the base station 10 in S622.

If neither the Leader 30 nor the Supporter 40 obtains a response, or if the NW (base station 10) does not obtain the information of the proposed terminal 20 requested by the NW (base station 10), the Leader 30 uses the options described in Example 4-1. Either 1 or option 2 may be performed.

Also, if the base station 10 does not acquire the information of the proposing terminal 20, the base station 10 may perform either option 1 or option 2 below.

Option 1:
The base station 10 determines that the target proposed terminal 20 is excluded from the grouping target of the leader 30 . At this time, the base station 10 may notify the leader 30 that the target proposed terminal 20 is removed from the grouping target of the leader 30 .

Option 2:
Before executing Option 1, the base station 10 may repeat command transmission to the proposing terminal 20 multiple times. The number of repetitions may be set in the base station 10 in advance, or the number of repetitions may be changed according to the radio quality. Also, the repetition count may be notified from the base station 10 to the leader 30 or the supporter 40 .

<Method for Determining Radio Resources>
In the fourth embodiment (embodiments 4-1 and 4-2), the leader 30 or the supporter 40 uses the following option 1 or option It may be determined by two methods.

Option 1:
In S501 of FIGS. 13 and 14 and S601 and S602 of FIG. to use.

Option 2:
Radio resources may be determined at timings different from the timings of “S501 in FIGS. 13 and 14, and S601 and S602 in FIG. 15”. For example, the Leader 30 may transmit a signal to the base station 10, and the base station 10 may perform UL scheduling for the Leader 30, or a resource dedicated to data transmission from the Leader 30 to the base station 10 may be provided to the Leader 30 in advance. may be set. The above signal may be a reference signal (eg, SRS), a scheduling request, or a preamble.

Similarly, the Supporter 40 may transmit a signal to the base station 10, and the base station 10 may perform UL scheduling for the Supporter 40, or a dedicated resource for data transmission from the Supporter 40 to the base station 10 may be allocated to the Supporter 40 in advance. may be set to The above signal may be a reference signal (eg, SRS), a scheduling request, or a preamble.

According to the fourth embodiment, the base station 10 can appropriately acquire information on the proposing terminal 20 in the desired group via the leader 30 or the supporter 40.

(Other examples)
As an example common to all embodiments, either or both of the following capabilities may be defined for intermediate node 35 .

・Capability that indicates whether or not you can become a leader
・Capability that indicates whether or not you can become a Supporter
The intermediate node 35 may notify the base station 10 of the capability. For example, the base station 10 can instruct the supporter 40, which has the ability to become a leader, to become a leader.

(Device configuration)
Next, functional configuration examples of the base station 10, the proposing terminal 20, and the intermediate node (communication device) 35 that execute the processes and operations described above will be described. The base station 10, the proposing terminal 20, and the intermediate node 35 contain functionality that implements all the embodiments described above. However, each of the base station 10, the proposing terminal 20, and the intermediate node 35 may have only the functions of any one of all the embodiments.

<Base station 10>
FIG. 18 is a diagram showing an example of the functional configuration of the base station 10. As shown in FIG. As shown in FIG. 18 , base station 10 has transmitter 110 , receiver 120 , setter 130 , and controller 140 . The functional configuration shown in FIG. 18 is merely an example. As long as the operation according to the embodiment of the present invention can be executed, the functional division and the names of the functional units may be arbitrary. The transmitting unit 110 and the receiving unit 120 may be called a communication unit.

The transmitting unit 110 includes a function of generating a signal to be transmitted to the intermediate node 35 or the proposing terminal 20 and transmitting the signal wirelessly. The receiving unit 120 includes a function of receiving various signals transmitted from the intermediate node 35 and acquiring, for example, higher layer information from the received signals. The transmitting unit 110 also has a function of transmitting NR-PSS, NR-SSS, NR-PBCH, DL/UL control signals, DL data, etc. to the intermediate node 35 .

The setting unit 130 stores preset setting information and various setting information to be transmitted to the intermediate node 35 in the storage device, and reads them from the storage device as necessary. Grouping information is stored in the setting unit 130 (which may also be called a storage unit).

The control unit 140 performs, for example, resource allocation, overall control of the base station 10, and the like. It should be noted that the functional unit related to signal transmission in control unit 140 may be included in transmitting unit 110 , and the functional unit related to signal reception in control unit 140 may be included in receiving unit 120 . Also, the transmitting unit 110 and the receiving unit 120 may be called a transmitter and a receiver, respectively. Also, the function of the setting unit 130 may be included in the control unit 140 .

<Proposal terminal 20>
FIG. 19 is a diagram showing an example of the functional configuration of the proposal terminal 20. As shown in FIG. As shown in FIG. 19 , the proposal terminal 20 has a transmission section 210 , a reception section 220 , a setting section 230 and a control section 240 . The functional configuration shown in FIG. 19 is merely an example. As long as the operation according to the embodiment of the present invention can be executed, the functional division and the names of the functional units may be arbitrary. The transmitting unit 210 and the receiving unit 220 may be called a communication unit.

The transmission unit 210, for example, wirelessly transmits a response to the command. The receiving unit 220 wirelessly receives commands. The setting unit 230 stores various types of setting information in a storage device, and reads them from the storage device as needed. The control unit 240 controls the entire proposal terminal 20 and the like. It should be noted that the functional unit related to signal transmission in control unit 240 may be included in transmitting unit 210 , and the functional unit related to signal reception in control unit 240 may be included in receiving unit 220 . Also, the transmitting section 210 and the receiving section 220 may be called a transmitter and a receiver, respectively. Also, the function of the setting unit 230 may be included in the control unit 240 .

<Intermediate node 35>
FIG. 20 is a diagram showing an example of the functional configuration of the intermediate node 35. As shown in FIG. As shown in FIG. 20 , the intermediate node 35 has a transmitter 310 , a receiver 320 , a setter 330 and a controller 340 . The functional configuration shown in FIG. 20 is merely an example. As long as the operation according to the embodiment of the present invention can be executed, the functional division and the names of the functional units may be arbitrary. The transmitting unit 310 and the receiving unit 320 may be called a communication unit.

The transmission unit 310 creates a transmission signal from the transmission data and wirelessly transmits the transmission signal. The transmission unit 310 can also transmit commands. The receiving unit 320 wirelessly receives various signals and acquires a higher layer signal from the received physical layer signal. The receiving unit 320 can also receive a response.

The setting unit 330 stores various types of setting information received from the base station 10 by the receiving unit 320 in the storage device, and reads them from the storage device as necessary. The setting unit 330 also stores preset setting information. The setting unit 330 (storage unit) can also store grouping information.

The control unit 340 controls the entire intermediate node 35, and the like. It should be noted that the functional unit related to signal transmission in control unit 340 may be included in transmitting unit 310 , and the functional unit related to signal reception in control unit 340 may be included in receiving unit 320 . Also, the transmitting unit 310 and the receiving unit 320 may be called a transmitter and a receiver, respectively. Also, the function of the setting unit 330 may be included in the control unit 340 .

Intermediate node 35 and base station 10 may be configured, for example, as communication devices and base stations as described in the following sections.
(Section 1)
a transmitter that transmits a first signal to the terminal;
a receiving unit that receives a second signal transmitted from the terminal in response to reception of the first signal,
The communication device, wherein the transmission unit transmits information of the terminal to a base station based on the second signal.
(Section 2)
The transmitting unit transmits the first signal at a first opportunity set in advance or notified from the base station, and the receiving unit transmits the first signal at a first opportunity set in advance or notified from the base station. 2. The communication device of claim 1, wherein the second signal is monitored on occasion.
(Section 3)
a receiving unit that receives a second signal transmitted from a terminal in response to reception of a first signal from another communication device or base station;
A communication device comprising: a transmission unit that transmits information of the terminal to the other communication device or the base station based on the second signal.
(Section 4)
The receiving unit monitors the second signal at a second opportunity set in advance or notified from the base station, and the transmitting unit monitors the second signal at a third opportunity set in advance or notified from the base station. 5. The communication device according to claim 4, wherein the terminal information is transmitted on occasion.
(Section 5)
a transmitter that transmits a first signal to the terminal;
A base station that receives information about the terminal from a communication device that receives a second signal transmitted from the terminal in response to reception of the first signal.
(Section 6)
a transmission unit that transmits a transmission request for the first signal to the communication device;
a receiving unit that receives information of the terminal from the communication device that has received a second signal transmitted from the terminal in response to reception of the first signal.

With the configuration described in any of the above paragraphs, it is possible to transmit to the base station information of terminals that are difficult to transmit information directly to the base station, such as RFID. Also, according to the second term, signal transmission and signal reception can be performed at appropriate opportunities. Further, according to the fourth term, signal reception and information transmission can be performed at appropriate opportunities.

(Hardware configuration)
The block diagrams (FIGS. 18 to 20) used to describe the above embodiments show blocks in units of functions. These functional blocks (components) are realized by any combination of at least one of hardware and software. Also, the method of implementing each functional block is not particularly limited. That is, each functional block may be implemented using one device that is physically or logically coupled, or directly or indirectly using two or more devices that are physically or logically separated (e.g. , wired, wireless, etc.) and may be implemented using these multiple devices. A functional block may be implemented by combining software in the one device or the plurality of devices.

Functions include judging, determining, determining, calculating, calculating, processing, deriving, investigating, searching, checking, receiving, transmitting, outputting, accessing, resolving, selecting, choosing, establishing, comparing, assuming, expecting, assuming, Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc. can't For example, the functional block (component) responsible for transmission is called a transmitting unit or transmitter. In either case, as described above, the implementation method is not particularly limited.

For example, the base station 10, the proposing terminal 20, the intermediate node 35, etc. according to the embodiment of the present disclosure may function as computers that perform processing of the wireless communication method of the present disclosure. FIG. 21 is a diagram illustrating an example of hardware configurations of the base station 10, the proposing terminal 20, and the intermediate node 35 according to an embodiment of the present disclosure. The base station 10, the proposing terminal 20, and the intermediate node 35 described above physically include a processor 1001, a storage device 1002, an auxiliary storage device 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like. It may be configured as a computer device.

In the following explanation, the term "apparatus" can be read as a circuit, device, unit, or the like. The hardware configuration of the base station 10, the proposing terminal 20, and the intermediate node 35 may be configured to include one or more of each device shown in the figure, or may be configured without some devices. good too.

Each function of the base station 10, the proposing terminal 20, and the intermediate node 35 is performed by the processor 1001 by loading predetermined software (program) onto hardware such as the processor 1001 and the storage device 1002, and the communication device It is realized by controlling communication by 1004 and controlling at least one of data reading and writing in the storage device 1002 and auxiliary storage device 1003 .

The processor 1001, for example, operates an operating system and controls the entire computer. The processor 1001 may be configured with a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, registers, and the like. For example, the control unit 140 , the control unit 240 , the control unit 340 and the like described above may be realized by the processor 1001 .

In addition, the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the auxiliary storage device 1003 and the communication device 1004 to the storage device 1002, and executes various processes according to them. As the program, a program that causes a computer to execute at least part of the operations described in the above embodiments is used. For example, the control unit 140 , the control unit 240 , and the control unit 340 described above may all be implemented by a control program stored in the storage device 1002 and operated by the processor 1001 . Although it has been explained that the above-described various processes are executed by one processor 1001, they may be executed simultaneously or sequentially by two or more processors 1001. FIG. Processor 1001 may be implemented by one or more chips. Note that the program may be transmitted from a network via an electric communication line.

The storage device 1002 is a computer-readable recording medium, for example, ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), etc. may be configured. The storage device 1002 may also be called a register, cache, main memory (main storage device), or the like. The storage device 1002 can store executable programs (program code), software modules, etc. for implementing a communication method according to an embodiment of the present disclosure.

The auxiliary storage device 1003 is a computer-readable recording medium, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (for example, a compact disk, a digital versatile disk, a Blu -ray disk), smart card, flash memory (eg, card, stick, key drive), floppy disk, magnetic strip, and/or the like. Auxiliary storage device 1003 may also be referred to as an auxiliary storage device. The storage medium described above may be, for example, a database, server, or other suitable medium including at least one of storage device 1002 and secondary storage device 1003 . Note that the suggestion terminal 20 may not include the auxiliary storage device 1003 .

The communication device 1004 is hardware (transmitting/receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also called a network device, a network controller, a network card, a communication module, or the like. The communication device 1004 includes a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc., in order to realize at least one of, for example, frequency division duplex (FDD) and time division duplex (TDD). may consist of For example, a transmitting/receiving antenna, an amplifier section, a transmitting/receiving section, a transmission path interface, etc. may be implemented by the communication device 1004 . The transceiver may be physically or logically separate implementations for the transmitter and receiver.

The input device 1005 is an input device (for example, keyboard, mouse, microphone, switch, button, sensor, etc.) that receives input from the outside. The output device 1006 is an output device (for example, display, speaker, LED lamp, etc.) that outputs to the outside. Note that the input device 1005 and the output device 1006 may be integrated (for example, a touch panel). Note that the proposal terminal 20 may not include either or both of the input device 1005 and the output device 1006 .

Each device such as the processor 1001 and the storage device 1002 is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or may be configured using different buses between devices.

In addition, the base station 10, the proposal terminal 20, and the intermediate node 35 include a microprocessor, a digital signal processor (DSP), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), an FPGA (Field Programmable Gate). Array), etc., and part or all of each functional block may be realized by the hardware. For example, processor 1001 may be implemented using at least one of these pieces of hardware.

(Supplement to the embodiment)
Although the embodiments of the present invention have been described above, the disclosed invention is not limited to such embodiments, and those skilled in the art can understand various modifications, modifications, alternatives, replacements, and the like. be. Although specific numerical examples have been used to facilitate understanding of the invention, these numerical values are merely examples and any appropriate values may be used unless otherwise specified. The division of items in the above description is not essential to the present invention, and the items described in two or more items may be used in combination as necessary, and the items described in one item may be used in another item. may apply (unless inconsistent) to the matters set forth in Boundaries of functional or processing units in functional block diagrams do not necessarily correspond to boundaries of physical components. The operations of a plurality of functional units may be physically performed by one component, or the operations of one functional unit may be physically performed by a plurality of components. As for the processing procedures described in the embodiments, the processing order may be changed as long as there is no contradiction. For convenience of explanation of processing, the base station 10, the proposing terminal 20, and the intermediate node 35 are explained using functional block diagrams, but such devices may be implemented in hardware, software, or a combination thereof. good too. software operated by the processor of the base station 10 according to the embodiment of the present invention, software operated by the processor of the proposing terminal 20 according to the embodiment of the present invention, and the processor of the intermediate node 35 according to the embodiment of the present invention Each of the operating software may be stored in random access memory (RAM), flash memory, read only memory (ROM), EPROM, EEPROM, registers, hard disk (HDD), removable disk, CD-ROM, database, server or any other suitable memory. It may be stored on a medium.

Also, notification of information is not limited to the aspects/embodiments described in the present disclosure, and may be performed using other methods. For example, notification of information includes physical layer signaling (e.g., DCI (Downlink Control Information), UCI (Uplink Control Information)), higher layer signaling (e.g., RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling, It may be implemented by broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals, or a combination thereof.In addition, RRC signaling may also be called an RRC message, for example, RRC It may be a connection setup (RRC Connection Setup) message, an RRC connection reconfiguration message, or the like.

Each aspect/embodiment described in the present disclosure includes LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system) system), 6G, FRA (Future Radio Access), NR (new Radio), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi ( (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth (registered trademark), and other suitable systems and extensions based on these It may be applied to at least one of the next generation systems developed. Also, a plurality of systems may be applied in combination (for example, a combination of at least one of LTE and LTE-A and 5G, etc.).

The order of the processing procedures, sequences, flowcharts, etc. of each aspect/embodiment described in this specification may be changed as long as there is no contradiction. For example, the methods described in this disclosure present elements of the various steps using a sample order, and are not limited to the specific order presented.

A specific operation performed by the base station 10 in this specification may be performed by its upper node in some cases. In a network of one or more network nodes with a base station 10, various operations performed for communication with an intermediate node 35 or a proposing terminal 20 may be Obviously, it can be done by at least one of the other network nodes (eg, but not limited to MME or S-GW, etc.). Although the case where there is one network node other than the base station 10 is illustrated above, the other network node may be a combination of a plurality of other network nodes (for example, MME and S-GW). .

Information, signals, etc. described in the present disclosure may be output from a higher layer (or a lower layer) to a lower layer (or a higher layer). It may be input and output via multiple network nodes.

Input/output information may be stored in a specific location (for example, memory) or managed using a management table. Input/output information and the like can be overwritten, updated, or appended. The output information and the like may be deleted. The entered information and the like may be transmitted to another device.

The determination in the present disclosure may be performed by a value represented by 1 bit (0 or 1), may be performed by a boolean value (Boolean: true or false), or may be performed by comparing numerical values (e.g. , comparison with a predetermined value).

Software, whether referred to as software, firmware, middleware, microcode, hardware description language or otherwise, includes instructions, instruction sets, code, code segments, program code, programs, subprograms, and software modules. , applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, and the like.

In addition, software, instructions, information, etc. may be transmitted and received via a transmission medium. For example, the software uses at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.) and wireless technology (infrared, microwave, etc.) to website, Wired and/or wireless technologies are included within the definition of transmission medium when sent from a server or other remote source.

The information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may refer to voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. may be represented by a combination of

The terms explained in this disclosure and terms necessary for understanding this disclosure may be replaced with terms having the same or similar meanings. For example, the channel and/or symbols may be signaling. A signal may also be a message. A component carrier (CC) may also be called a carrier frequency, a cell, a frequency carrier, or the like.

The terms "system" and "network" used in this disclosure are used interchangeably.

In addition, the information, parameters, etc. described in the present disclosure may be expressed using absolute values, may be expressed using relative values from a predetermined value, or may be expressed using other corresponding information. may be represented. For example, radio resources may be indexed.

The names used for the parameters described above are not restrictive names in any respect. Further, the formulas, etc., using these parameters may differ from those expressly disclosed in this disclosure. Since the various channels (e.g., PUSCH, PUCCH, PDCCH, etc.) and information elements can be identified by any suitable names, the various names assigned to these various channels and information elements are in no way restrictive. not a name.

In the present disclosure, "base station (BS)", "radio base station", "base station", "fixed station", "NodeB", "eNodeB (eNB)", "gNodeB ( gNB)", "access point", "transmission point", "reception point", "transmission/reception point", "cell", "sector", " Terms such as "cell group", "carrier", "component carrier" may be used interchangeably. A base station may also be referred to by terms such as macrocell, small cell, femtocell, picocell, and the like.

A base station can accommodate one or more (eg, three) cells. When a base station accommodates multiple cells, the overall coverage area of the base station can be partitioned into multiple smaller areas, each smaller area being associated with a base station subsystem (e.g., an indoor small base station (RRH: The term "cell" or "sector" refers to part or all of the coverage area of at least one of the base stations and base station subsystems serving communication services in this coverage. point to

In the present disclosure, terms such as "mobile station (MS)", "user terminal", "user equipment (UE)", and "terminal" can be used interchangeably.

A mobile station (intermediate node 35 or proposing terminal 20) is referred to by those skilled in the art as subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber It may also be called a station, access terminal, mobile terminal, terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client or some other suitable terminology.

At least one of the base station, intermediate node, and proposing terminal may be called a transmitting device, a receiving device, a communication device, or the like. It should be noted that at least one of the base station, the intermediate node, and the proposing terminal may be a device mounted on the mobile, the mobile itself, or the like. The mobile object may be a vehicle (e.g., car, airplane, etc.), an unmanned mobile object (e.g., drone, self-driving car, etc.), or a robot (manned or unmanned ). Note that at least one of the base station and the mobile station includes devices that do not necessarily move during communication operations. For example, at least one of the base station and mobile station may be an IoT (Internet of Things) device such as a sensor.

Also, the base station in the present disclosure may be read as a terminal. For example, regarding a configuration in which communication between a base station and a terminal is replaced with communication between a plurality of terminals (for example, D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.) , each aspect/embodiment of the present disclosure may be applied. In this case, the terminal 20 may have the functions of the base station 10 described above. Also, words such as "up" and "down" may be replaced with words corresponding to inter-terminal communication (for example, "side"). For example, uplink channels, downlink channels, etc. may be read as side channels.

Similarly, a terminal in the present disclosure may be read as a base station. In this case, the base station may have the functions that the terminal has.

The terms "determining" and "determining" used in this disclosure may encompass a wide variety of actions. "Judgement" and "determination" are, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiring (eg, lookup in a table, database, or other data structure), ascertaining as "judged" or "determined", and the like. Also, "judgment" and "determination" are used for receiving (e.g., receiving information), transmitting (e.g., transmitting information), input, output, access (accessing) (for example, accessing data in memory) may include deeming that a "judgment" or "decision" has been made. In addition, "judgment" and "decision" are considered to be "judgment" and "decision" by resolving, selecting, choosing, establishing, comparing, etc. can contain. In other words, "judgment" and "decision" may include considering that some action is "judgment" and "decision". Also, "judgment (decision)" may be read as "assuming", "expecting", "considering", or the like.

The terms "connected", "coupled", or any variation thereof, mean any direct or indirect connection or coupling between two or more elements, It can include the presence of one or more intermediate elements between two elements being "connected" or "coupled." Couplings or connections between elements may be physical, logical, or a combination thereof. For example, "connection" may be read as "access". As used in this disclosure, two elements are defined using at least one of one or more wires, cables, and printed electrical connections and, as some non-limiting and non-exhaustive examples, in the radio frequency domain. , electromagnetic energy having wavelengths in the microwave and optical (both visible and invisible) regions, and the like.

The reference signal can also be abbreviated as RS (Reference Signal), and may also be called Pilot depending on the applicable standard.

The term "based on" as used in this disclosure does not mean "based only on" unless otherwise specified. In other words, the phrase "based on" means both "based only on" and "based at least on."

Any reference to elements using the "first," "second," etc. designations used in this disclosure does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, reference to a first and second element does not imply that only two elements can be employed or that the first element must precede the second element in any way.

"Means" in the configuration of each device described above may be replaced with "unit", "circuit", "device", or the like.

Where "include," "including," and variations thereof are used in this disclosure, these terms are inclusive, as is the term "comprising." is intended. Furthermore, the term "or" as used in this disclosure is not intended to be an exclusive OR.

A radio frame may consist of one or more frames in the time domain. Each frame or frames in the time domain may be referred to as a subframe. A subframe may also consist of one or more slots in the time domain. A subframe may be of a fixed length of time (eg, 1 ms) independent of numerology.

A numerology may be a communication parameter that applies to the transmission and/or reception of a signal or channel. Numerology, for example, subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame configuration, transceiver It may indicate at least one of certain filtering operations performed in the frequency domain, certain windowing operations performed by the transceiver in the time domain, and/or the like.

A slot may consist of one or more symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbol, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbol, etc.) in the time domain. A slot may be a unit of time based on numerology.

A slot may contain multiple mini-slots. Each minislot may consist of one or more symbols in the time domain. A minislot may also be referred to as a subslot. A minislot may consist of fewer symbols than a slot. PDSCH (or PUSCH) transmitted in time units larger than minislots may be referred to as PDSCH (or PUSCH) mapping type A. PDSCH (or PUSCH) transmitted using minislots may be referred to as PDSCH (or PUSCH) mapping type B.

Radio frames, subframes, slots, minislots and symbols all represent time units when transmitting signals. Radio frames, subframes, slots, minislots and symbols may be referred to by other corresponding designations.

For example, one subframe may be called a Transmission Time Interval (TTI), a plurality of consecutive subframes may be called a TTI, and one slot or one minislot may be called a TTI. may That is, at least one of the subframe and TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (eg, 1-13 symbols), or a period longer than 1 ms may be Note that the unit representing the TTI may be called a slot, mini-slot, or the like instead of a subframe.

Here, TTI refers to, for example, the minimum scheduling time unit in wireless communication. For example, in the LTE system, the base station schedules each intermediate node 35 to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used by each intermediate node 35) in TTI units. Note that the definition of TTI is not limited to this.

A TTI may be a transmission time unit such as a channel-encoded data packet (transport block), code block, or codeword, or may be a processing unit such as scheduling and link adaptation. Note that when a TTI is given, the time interval (for example, the number of symbols) in which transport blocks, code blocks, codewords, etc. are actually mapped may be shorter than the TTI.

When one slot or one minislot is called a TTI, one or more TTIs (that is, one or more slots or one or more minislots) may be the minimum scheduling time unit. Also, the number of slots (the number of mini-slots) constituting the minimum time unit of the scheduling may be controlled.

A TTI having a time length of 1 ms may be called a normal TTI (TTI in LTE Rel. 8-12), normal TTI, long TTI, normal subframe, normal subframe, long subframe, slot, or the like. A TTI that is shorter than a normal TTI may be called a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a minislot, a subslot, a slot, and the like.

Note that the long TTI (e.g., normal TTI, subframe, etc.) may be replaced with a TTI having a time length exceeding 1 ms, and the short TTI (e.g., shortened TTI, etc.) is less than the TTI length of the long TTI and 1 ms A TTI having the above TTI length may be read instead.

A resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may include one or more consecutive subcarriers in the frequency domain. The number of subcarriers included in the RB may be the same regardless of the numerology, and may be 12, for example. The number of subcarriers included in an RB may be determined based on numerology.

Also, the time domain of an RB may include one or more symbols and may be 1 slot, 1 minislot, 1 subframe, or 1 TTI long. One TTI, one subframe, etc. may each consist of one or more resource blocks.

One or more RBs are physical resource blocks (PRBs), sub-carrier groups (SCGs), resource element groups (REGs), PRB pairs, RB pairs, etc. may be called.

Also, a resource block may be composed of one or more resource elements (RE: Resource Element). For example, 1 RE may be a radio resource region of 1 subcarrier and 1 symbol.

A bandwidth part (BWP) (which may also be called a bandwidth part) may represent a subset of contiguous common resource blocks (RBs) for a certain numerology on a certain carrier. Here, the common RB may be identified by an RB index based on the common reference point of the carrier. PRBs may be defined in a BWP and numbered within that BWP.

The BWP may include a BWP for UL (UL BWP) and a BWP for DL (DL BWP). One or multiple BWPs may be configured for a UE within one carrier.

At least one of the configured BWPs may be active, and the UE may not expect to transmit or receive a given signal/channel outside the active BWP. Note that "cell", "carrier", etc. in the present disclosure may be read as "BWP".

The structures such as radio frames, subframes, slots, minislots and symbols described above are only examples. For example, the number of subframes contained in a radio frame, the number of slots per subframe or radio frame, the number of minislots contained within a slot, the number of symbols and RBs contained in a slot or minislot, the number of Configurations such as the number of subcarriers, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, etc. can be varied.

In the present disclosure, when articles are added by translation, such as a, an and the in English, the present disclosure may include that nouns following these articles are plural.

In the present disclosure, the term "A and B are different" may mean "A and B are different from each other." The term may also mean that "A and B are different from C". Terms such as "separate," "coupled," etc. may also be interpreted in the same manner as "different."

Each aspect/embodiment described in the present disclosure may be used alone, may be used in combination, or may be used by switching along with execution. In addition, the notification of predetermined information (for example, notification of “being X”) is not limited to being performed explicitly, but may be performed implicitly (for example, not notifying the predetermined information). good too.

In addition, in the present disclosure, the SS block or CSI-RS is an example of a synchronization signal or reference signal.

Although the present disclosure has been described in detail above, it is clear to those skilled in the art that the present disclosure is not limited to the embodiments described in the present disclosure. The present disclosure can be practiced with modifications and variations without departing from the spirit and scope of the present disclosure as defined by the claims. Accordingly, the description of the present disclosure is for illustrative purposes and is not meant to be limiting in any way.

10 base station 110 transmitting unit 120 receiving unit 130 setting unit 140 control unit 20 proposal terminal 210 transmitting unit 220 receiving unit 230 setting unit 240 control unit 35 intermediate node 310 transmitting unit 320 receiving unit 330 setting unit 340 control unit 30 Leader
40 Supporters
1001 processor 1002 storage device 1003 auxiliary storage device 1004 communication device 1005 input device 1006 output device

Claims

a transmitter that transmits a first signal to the terminal;
a receiving unit that receives a second signal transmitted from the terminal in response to reception of the first signal,
The communication device, wherein the transmission unit transmits information of the terminal to a base station based on the second signal.
The transmitting unit transmits the first signal at a first opportunity set in advance or notified from the base station, and the receiving unit transmits the first signal at a first opportunity set in advance or notified from the base station. 2. The communication device of claim 1, monitoring the second signal on occasion.
a receiving unit that receives a second signal transmitted from a terminal in response to reception of a first signal from another communication device or base station;
A communication device comprising: a transmission unit that transmits information of the terminal to the other communication device or the base station based on the second signal.
The receiving unit monitors the second signal at a second opportunity set in advance or notified from the base station, and the transmitting unit monitors the second signal at a third opportunity set in advance or notified from the base station. 4. The communication device according to claim 3, wherein the terminal information is transmitted on occasion.
a transmitter that transmits a first signal to the terminal;
A base station that receives information about the terminal from a communication device that receives a second signal transmitted from the terminal in response to reception of the first signal.
a transmission unit that transmits a transmission request for the first signal to the communication device;
a receiving unit that receives information of the terminal from the communication device that has received a second signal transmitted from the terminal in response to reception of the first signal.