WO2024095491A1 - Terminal, base station, and communication method - Google Patents

Abstract

Provided is a terminal comprising a reception unit that receives instructions for paging and a positioning operation, and a control unit that assumes that the paging and the positioning operation are instructed to be performed at the same timing.

Description

Terminal, base station and communication method

The present invention relates to a terminal, a base station, and a communication method in a wireless communication system.

For NR (New Radio) (also known as "5G"), the successor system to LTE (Long Term Evolution), technologies are being considered that meet the requirements of a large-capacity system, high data transmission speed, low latency, simultaneous connection of many terminals, low cost, and low power consumption (for example, Non-Patent Document 1).

Furthermore, in NR Release 18, LPHAP (Low Power High Accuracy Positioning) is discussing functional extensions to support low power consumption and high accuracy positioning in the RRC_IDLE (RRC_INACTIVE) state. For example, according to Use Case 6 in Non-Patent Document 2, a battery life of 6-12 months with an accuracy of within 1 m is required.

Because startup consumes a lot of power, the use of PEI (Paging Early Indication) to reduce startup frequency may be considered. However, if PRS reception/SRS transmission is instructed at a time when there is no paging reception, startup is required for positioning operation, which is undesirable from the perspective of power consumption. In addition, if positioning operation is limited to paging timing only, there is a problem that low-latency positioning cannot be achieved.

The present invention was made in consideration of the above points, and aims to achieve low power consumption and highly accurate positioning.

The disclosed technology provides a terminal that includes a receiving unit that receives instructions for paging and positioning operations, and a control unit that assumes that it will be instructed to perform the paging and positioning operations at the same time.

The disclosed technology provides technology that makes it possible to achieve high-precision positioning with low power consumption.

1 is a diagram for explaining a wireless communication system according to an embodiment of the present invention. FIG. 1 is a diagram for explaining PEI. 5 is a diagram for explaining timing of a positioning operation according to an embodiment of the present invention. FIG. FIG. 11 is a first diagram for explaining the start of a positioning operation according to the first embodiment of the present invention. FIG. 11 is a second diagram for explaining the start of the positioning operation according to the first embodiment of the present invention. FIG. 4 is a diagram for explaining the operation of a terminal according to the first embodiment of the present invention; FIG. 11 is a first diagram for explaining the start of a positioning operation according to the second embodiment of the present invention. FIG. 11 is a second diagram for explaining the start-up of the positioning operation according to the embodiment 2 of the present invention. FIG. 11 is a diagram for explaining the operation of a terminal according to a second embodiment of the present invention. FIG. 11 is a diagram for explaining the start of a positioning operation according to a third embodiment of the present invention. FIG. 13 is a diagram for explaining the start of a positioning operation according to a fourth embodiment of the present invention. FIG. 2 is a diagram illustrating an example of a functional configuration of a base station according to an embodiment of the present invention. FIG. 2 is a diagram illustrating an example of a functional configuration of a terminal according to an embodiment of the present invention. FIG. 2 is a diagram illustrating an example of a hardware configuration of a base station or a terminal according to an embodiment of the present invention. 1 is a diagram showing an example of a configuration of a vehicle according to an embodiment of the present invention.

Below, an embodiment of the present invention (present embodiment) will be described with reference to the drawings. Note that the embodiment described below is an example, and the embodiment to which the present invention is applicable is not limited to the following embodiment.

In operating the wireless communication system according to the embodiment of the present invention, existing technology is used as appropriate. However, the existing technology is, for example, the existing LTE, but is not limited to the existing LTE. Furthermore, the term "LTE" used in this specification has a broad meaning including LTE-Advanced and systems subsequent to LTE-Advanced (e.g., NR) unless otherwise specified.

In addition, in the embodiment of the present invention described below, terms such as SS (Synchronization signal), PSS (Primary SS), SSS (Secondary SS), PBCH (Physical broadcast channel), PRACH (Physical random access channel), PDCCH (Physical Downlink Control Channel), PDSCH (Physical Downlink Shared Channel), PUCCH (Physical Uplink Control Channel), and PUSCH (Physical Uplink Shared Channel), which are used in existing LTE, are used. This is for convenience of description, and similar signals, functions, etc. may be called by other names. Furthermore, the above-mentioned terms in NR correspond to NR-SS, NR-PSS, NR-SSS, NR-PBCH, NR-PRACH, etc. However, even if a signal is used in NR, it is not necessarily specified as "NR-".

Furthermore, in an embodiment of the present invention, the duplex method may be a TDD (Time Division Duplex) method, an FDD (Frequency Division Duplex) method, or another method (e.g., Flexible Duplex, etc.).

Furthermore, in the embodiment of the present invention, when radio parameters and the like are "configured," it may mean that predetermined values are pre-configured, or that radio parameters notified from the base station 10 or the terminal 20 are configured.

(System configuration)
FIG. 1 is a diagram for explaining a wireless communication system according to an embodiment of the present invention.
As shown in Fig. 1, a wireless communication system according to an embodiment of the present invention includes a base station 10 and a terminal 20. Although Fig. 1 shows one base station 10 and one terminal 20, this is an example, and there may be a plurality of each.

The base station 10 is a communication device that provides one or more cells and performs wireless communication with the terminal 20. The physical resources of the wireless signal are defined in the time domain and the frequency domain, and the time domain may be defined by the number of OFDM (Orthogonal Frequency Division Multiplexing) symbols, and the frequency domain may be defined by the number of subcarriers or the number of resource blocks. In addition, the TTI (Transmission Time Interval) in the time domain may be a slot, or the TTI may be a subframe.

The base station 10 transmits a synchronization signal and system information to the terminal 20. The synchronization signal is, for example, NR-PSS and NR-SSS. The system information is, for example, transmitted by NR-PBCH and is also called broadcast information. The synchronization signal and system information may be called SSB (SS/PBCH block). As shown in FIG. 1, the base station 10 transmits a control signal or data to the terminal 20 in DL (Downlink) and receives a control signal or data from the terminal 20 in UL (Uplink). Both the base station 10 and the terminal 20 are capable of transmitting and receiving signals by performing beamforming. In addition, both the base station 10 and the terminal 20 are capable of applying communication by MIMO (Multiple Input Multiple Output) to DL or UL. In addition, both the base station 10 and the terminal 20 may communicate via a secondary cell (SCell: Secondary Cell) and a primary cell (PCell: Primary Cell) by CA (Carrier Aggregation). Furthermore, the terminal 20 may communicate via a primary cell of the base station 10 and a primary secondary cell group cell (PSCell: Primary SCG Cell) of another base station 10 using DC (Dual Connectivity).

The terminal 20 is a communication device equipped with a wireless communication function, such as a smartphone, a mobile phone, a tablet, a wearable terminal, or a communication module for M2M (Machine-to-Machine). As shown in FIG. 1, the terminal 20 receives control signals or data from the base station 10 in DL and transmits control signals or data to the base station 10 in UL, thereby utilizing various communication services provided by the wireless communication system. The terminal 20 also receives various reference signals transmitted from the base station 10, and performs measurement of propagation path quality based on the reception results of the reference signals. The terminal 20 may be referred to as a UE, and the base station 10 as a gNB.

(Problems with the past)
In NR Release 18, LPHAP (Low Power High Accuracy Positioning) is discussing functional extensions to support low power consumption and high accuracy positioning in the RRC_IDLE (RRC_INACTIVE) state. For example, according to Use Case 6 in Non-Patent Document 2, a battery life of 6-12 months with an accuracy of within 1 m is required.

Since startup consumes a lot of power, there is a possibility that the use of PEI (Paging Early Indication), which reduces startup frequency, may be considered.

Figure 2 is a diagram explaining PEI. For example, if the PEI notifies the terminal that paging reception is unnecessary, the terminal can reduce unnecessary SSB/paging reception. In addition, by aligning startup for paging reception and startup for positioning, the frequency of startup can be reduced, and power consumption of the terminal can be reduced.

However, if PRS reception/SRS transmission is instructed at a time when there is no paging reception, the device must be started up for positioning operation, which is undesirable from the perspective of power consumption. In addition, if positioning operation is limited to paging timing only, there is a problem in that low-latency positioning cannot be achieved.

(Outline of the present embodiment)
Therefore, in this embodiment, an example will be described in which the terminal is instructed to perform paging and positioning operations at the same time.

FIG. 3 is a diagram for explaining the timing of a positioning operation according to an embodiment of the present invention. It may be assumed that the terminal 20 is instructed to perform paging and positioning operations (PRS reception is shown as an example in FIG. 3) at the same time.

Here, the positioning operation may refer to any of the following operations.
・Performs PRS measurement in UE-A (terminal assisted) or UE-B (terminal based) positioning ・Transmits measurement report by (RA/CG-)SDT in UE-A positioning, and reports positioning results in UE-B positioning ・Performs SRS transmission in NW-B (network based: NG-RAN node assisted) positioning

　Also, the same time timing may refer to any of the following options:

<Option 1>
The terminal 20 may assume that the same time timing is a period during which a single wake-up is expected, i.e., a period during which no deep sleep is expected to occur between paging and positioning operations (however, this does not necessarily mean that the terminal 20 will transition to an awake state).

For example, this includes cases where paging occasions (PO) and positioning operations are aligned while the device is in sleep mode.

<Option 2>
The terminal 20 may assume that the same time timing is within X [symbol/slot/ms] before the start-up timing (for example, PO or a DRX (Discontinuous Reception) ON period (DRX on duration)).

<Option 3>
The terminal 20 may assume that the same time timing is within Y [symbol/slot/ms] after the wake-up timing (for example, PO or DRX ON period).

<Option 4>
The terminal 20 may assume the same time timing for a combination of option 2 and option 3.

<Option 5>
The terminal 20 may assume that the same time timing is the period set/instructed by the network (base station 10) in RRC/MAC-CE/DCI/PEI/WUS.

Instead of PEI, it may be assumed that the terminal 20 is instructed on the start-up timing by (LP-)WUS ((Low Power -) Wake Up Signal) or during the DRX ON period. Note that (LP-)WUS is a function that notifies whether or not start-up is required during the DRX ON period. Here, when (LP-)WUS is used instead of PEI, it may be assumed that the terminal is instructed to perform signal transmission and reception and positioning operations at the same time, instead of being instructed to perform paging and positioning operations at the same time.

The terminal 20 may assume that the timing for receiving the setting of the ON period of PEI/WUS/DRX and the instruction for the positioning operation is any one of the following.
The ON period of PEI/WUS/DRX is set first, and the positioning operation is instructed to coincide with the start-up timing due to the ON period of PEI/WUS/DRX. The positioning operation is instructed first, and the ON period of PEI/WUS/DRX is set to coincide with the start-up timing. The ON period of PEI/WUS/DRX and the positioning operation are set at the same time, and the start-up timing is set taking both into consideration.

The terminal 20 may also assume that the other timing is set based on the previously set PEI/WUS/DRX ON period or the relative position from the positioning operation. Here, the terminal 20 may assume that the relative position is determined by one of the following options:

<Option 1>
The terminal 20 may assume that the relative position is determined within X [symbol/slot/ms] before the wake-up timing (eg, PO, or DRX ON period).

<Option 2>
The terminal 20 may assume that the relative position is determined to be within Y [symbol/slot/ms] after the wake-up timing (eg, PO or DRX ON period).

<Option 3>
The terminal 20 may assume that the relative location is determined by a combination of option 1 and option 2.

Furthermore, the terminal 20 may assume that a new PEI that takes into account positioning operations will be defined in addition to the existing PEI that takes into account power saving. For example, the terminal 20 may assume that the PEI period, skip number, etc. will be taken into account so that positioning operations can be performed.

Furthermore, it may be assumed that the terminal 20 is set with both a PEI that takes into account only power saving and a PEI that also takes into account positioning operations. Here, the terminal 20 may transmit information indicating whether only one of them can be activated or whether both can be activated simultaneously to the base station 10 as terminal capability information.

The terminal 20 may assume that the timing of the positioning operation is instructed to the base station 10 by the LMF (Location Management Function).

The terminal 20 may assume that the base station 10 adjusts the timing of paging and positioning operations, and that the operations are instructed at the same timing. Here, the terminal 20 may assume that the timing adjustment is not limited to periodic positioning operations, but may also be for aperiodic or semi-persistent positioning operations.

If periodic paging and/or periodic positioning operations are configured, the terminal 20 may assume that one period is instructed to be aligned with the other period.

If periodic paging and/or periodic positioning operations are configured, the terminal 20 may request the network (base station 10) to align one period with the other.

Next, we will explain examples 1 to 4 as specific examples of this embodiment.

Example 1
In this embodiment, an example will be described in which the terminal 20 is not activated only for the positioning operation.

FIG. 4 is a first diagram for explaining the start-up of the positioning operation according to the first embodiment of the present invention. It may be assumed that the terminal 20 is not started up solely for the positioning operation.

FIG. 5 is a second diagram for explaining the start-up of the positioning operation according to the embodiment 1 of the present invention. As shown in FIG. 5, if the PO and the positioning operation are not aligned, the terminal 20 may be assumed not to start up for the positioning operation alone outside the vicinity of the PO. A case in which the PO and the positioning operation are not aligned may be a case in which the "same time timing" described above is not applicable, that is, a case in which options 1-5 which assume the "same time timing" described above are not applicable.

It may be assumed that the terminal 20 decides whether to perform a positioning operation by taking into account the positional relationship on the time axis between the PO and the positioning operation. For example, the terminal 20 may not need to perform a positioning operation if the PO and the positioning operation are separated by Z [symbol/slot/ms] or more. Also, for example, if the PO and the positioning operation are instructed at exactly the same time position, the terminal 20 may not need to perform measurement of either depending on the terminal capabilities.

The terminal 20 may be assumed to limit positioning operations to start-up timing, and to skip (not perform) the corresponding positioning operation when the PEI indicates that paging reception is not required.

FIG. 6 is a diagram for explaining the operation of a terminal according to Example 1 of an embodiment of the present invention. When the terminal 20 does not perform a positioning operation, the terminal 20 may assume any of the following optional operations shown in FIG. 6.

<Option 1>
When the terminal 20 is instructed by the network (base station 10) to perform a positioning operation at a non-activation timing according to the PEI, the terminal 20 may return a message to the network (base station 10) indicating that positioning is impossible.

<Option 2>
When the terminal 20 is instructed by the network (base station 10) to perform a positioning operation at a non-activation timing according to the PEI, the terminal 20 may return a signal indicating a positioning failure to the network (base station 10) instead of a measurement report.

<Option 3>
When the terminal 20 is instructed to perform a positioning operation from the network (base station 10) at a non-activation timing based on the PEI, the terminal 20 may ignore the positioning instruction from the network (base station 10). As a result, since the network (base station 10) recognizes the PEI, it can be considered that the terminal 20 has implicitly responded that positioning is impossible or has failed.

The terminal 20 may assume different operations for each positioning operation. For example, the terminal 20 may not be started for a measurement report/positioning result report/SRS transmission regarding transmission. Also, for example, the terminal 20 may not be started for a PRS reception/SRS transmission in which a new positioning procedure is started.

According to this embodiment, unnecessary startup of the terminal 20 is reduced, and power consumption can be reduced.

Example 2
In this embodiment, an example will be described in which the terminal 20 is activated only for the positioning operation.

FIG. 7 is a first diagram for explaining the start-up of the positioning operation according to the second embodiment of the present invention. It may be assumed that the terminal 20 starts up only for the positioning operation. For example, in the example shown in FIG. 7, it is assumed that the terminal 20 does not receive paging but is not instructed to skip start-up due to PRS reception.

FIG. 8 is a second diagram for explaining the start-up of the positioning operation according to the second embodiment of the present invention. It may be assumed that the terminal 20 starts up only for the positioning operation outside the vicinity of the PO when the PO and the positioning operation are not consistent. For example, in the example shown in FIG. 8, the terminal 20 starts up to receive the PRS, even though it has been instructed to skip the start-up.

Similar to the first embodiment, a case where the PO and the positioning operation are not aligned may be a case where the above-mentioned "same time timing" does not apply, that is, a case where options 1-5 that assume the above-mentioned "same time timing" do not apply.

It may be assumed that the terminal 20 decides whether to perform a positioning operation by taking into account the positional relationship on the time axis between the PO and the positioning operation. For example, the terminal 20 may perform a positioning operation when the PO and the positioning operation are within Z [symbol/slot/ms]. Also, for example, when the PO and the positioning operation are instructed at exactly the same time position, the terminal 20 may measure both or only one of them depending on the terminal capabilities.

The terminal 20 may be assumed to be started by the PEI (not to be instructed to skip starting) in order to perform positioning operations even when paging reception is not required.

FIG. 9 is a diagram for explaining the operation of a terminal according to Example 2 of an embodiment of the present invention. When reporting a measurement report or a positioning result, the terminal 20 may assume any of the following optional operations shown in FIG. 9.

<Option 1>
The terminal 20 may wake up and report at any timing designated by the network (base station 10) in the positioning operation.

<Option 2>
The terminal 20 may report the information in accordance with the start-up timing of the PEI.

In addition, the terminal 20 may assume that the next startup timing will follow the original startup timing based on the PEI, regardless of the startup timing for the positioning operation.

The terminal 20 may assume that it will maintain the awake state without transitioning to a sleep state if other operations (e.g., paging/SSB/PDCCH/PDSCH reception, PUCCH/PUSCH transmission) are instructed near the wake-up timing for the positioning operation. Here, "nearby" may be any of options 1-5, which assume "the same time timing."

The terminal 20 may assume different operations for each positioning operation. For example, the terminal 20 may start and perform a PRS reception operation related to reception. Also, for example, the terminal 20 may start and perform a measurement report or a positioning result report, which is a part of an operation within a positioning procedure that has already started.

According to this embodiment, low-latency positioning is possible regardless of the timing of paging.

Example 3
In this embodiment, an example in which the priority order between sleep and positioning operations is defined by PEI will be described.

The terminal 20 may assume that a priority is defined between sleep and positioning operations by PEI.

FIG. 10 is a diagram for explaining the start of a positioning operation according to the third embodiment of the present invention. As shown in FIG. 10, the terminal 20 may assume that the priority of the positioning operation and the PEI instructed around the PO is specified.

The terminal 20 may assume that a priority order is defined between a sleep state indicated by the PEI for power saving and an active state for positioning operation only. The terminal 20 may assume that the priority order is defined as follows:
Priority is specified in the specifications. Priority is specified by the network (base station 10). Priority is requested from the terminal 20 to the network (base station 10).

Terminal capabilities regarding priority order may be specified. For example, the terminal 20 may transmit information indicating whether or not it supports PEI priority and/or positioning operation priority to the base station 10 (corresponding to Examples 1 and 2). The terminal 20 may set terminal capabilities for each positioning operation (PRS measurement/measurement report/SRS transmission).

The terminal 20 may assume that the priority update frequency is one of the following:
Each time positioning is instructed from the network (base station 10) When sleep-related settings are made (for example, when the state transitions from RRC_CONNECTED to RRC_INACTIVE)
At a regular interval (which may be specified in the specifications or instructed by the network (base station 10))

This embodiment enables flexible operation of PEI and positioning operations.

Example 4
In this embodiment, an example in which the priority order between sleep and positioning operation is defined will be described.

The terminal 20 may assume that a priority is defined between sleep and positioning operations.

FIG. 11 is a diagram for explaining the start of a positioning operation according to the fourth embodiment of the present invention. As shown in FIG. 11, the terminal 20 may be assumed to be not limited to the vicinity of a PO related to a PEI instruction, but to specify the priority of the positioning operation and the PEI.

The terminal 20 may assume that a priority order is defined between a sleep state and an active state for only the positioning operation. The terminal 20 may assume that the priority order is defined as follows:
Priority is specified in the specifications. Priority is specified by the network (base station 10). Priority is requested from the terminal 20 to the network (base station 10).

Terminal capabilities related to priority order may be specified. For example, the terminal 20 may transmit information indicating whether or not it supports sleep priority and/or positioning operation priority to the base station 10 (corresponding to the modified examples in the first and second embodiments). The terminal 20 may set terminal capabilities for each positioning operation (PRS measurement/measurement report/SRS transmission).

The terminal 20 may assume that the priority update frequency is one of the following:
Each time positioning is instructed from the network (base station 10) When sleep-related settings are made (for example, when the state transitions from RRC_CONNECTED to RRC_INACTIVE)
At a regular interval (which may be specified in the specifications or instructed by the network (base station 10))

This embodiment enables flexible operation of sleep and positioning operations other than PO, which cannot be instructed by PEI.

In the above-mentioned third or fourth embodiment, it may be assumed that the terminals 20 are designated individually, not in accordance with a priority order. For example, it may be assumed that the terminals 20 are instructed each time whether or not to wake up for positioning operations only in a sleep state instructed by the PEI (or a sleep state other than the PEI).

(Rephrasing)
In the above-described embodiment, "PRS (Positioning Reference Signal)" may be replaced with "DL-PRS", "UL-PRS (for example, SRS for positioning, SRS)", etc.

"SRS" may be interpreted as "SRS for MIMO", "SRS for positioning", or as "measurement report by (RA/CG-)SDT".

"WUS" may be read as "LP-WUS", etc.

"SSB (SS/PBCH block)" may be interpreted as "SS", "PSS", "SSS", or "PBCH".

The network may be replaced with "gNB", "TRP", "LMF", etc.

"Configured/indicated by the network" may be read as "configured/activated/indicated by the network via RRC/MAC-CE/DCI."

(Device configuration)
Next, a description will be given of an example of the functional configuration of the base station 10 and the terminal 20 that execute the processes and operations described above.

<Base Station 10>
Fig. 12 is a diagram showing an example of the functional configuration of the base station 10. As shown in Fig. 12, the base station 10 has a transmitting unit 110, a receiving unit 120, a setting unit 130, and a control unit 140. The functional configuration shown in Fig. 12 is merely an example. As long as the operation related to the embodiment of the present invention can be executed, the names of the functional divisions and the functional units may be any. In addition, the transmitting unit 110 and the receiving unit 120 may be collectively referred to as a communication unit.

The transmitter 110 has a function of generating a signal to be transmitted to the terminal 20 and transmitting the signal wirelessly. The receiver 120 has a function of receiving various signals transmitted from the terminal 20 and acquiring, for example, information of a higher layer from the received signals. The transmitter 110 also has a function of transmitting NR-PSS, NR-SSS, NR-PBCH, DL/UL control signals, DCI via PDCCH, data via PDSCH, etc. to the terminal 20.

The setting unit 130 stores pre-set setting information and various setting information to be transmitted to the terminal 20 in a storage device provided in the setting unit 130, and reads it from the storage device as necessary.

The control unit 140 schedules DL reception or UL transmission of the terminal 20 via the transmission unit 110. The control unit 140 also includes a function for performing LBT. The functional unit related to signal transmission in the control unit 140 may be included in the transmission unit 110, and the functional unit related to signal reception in the control unit 140 may be included in the reception unit 120. The transmission unit 110 may also be called a transmitter, and the reception unit 120 may also be called a receiver.

<Terminal 20>
Fig. 13 is a diagram showing an example of the functional configuration of the terminal 20. As shown in Fig. 13, the terminal 20 has a transmitting unit 210, a receiving unit 220, a setting unit 230, and a control unit 240. The functional configuration shown in Fig. 13 is merely an example. As long as the operation related to the embodiment of the present invention can be executed, the names of the functional divisions and the functional units may be any. The transmitting unit 210 and the receiving unit 220 may be collectively referred to as a communication unit.

The transmitter 210 creates a transmission signal from the transmission data and transmits the transmission signal wirelessly. The receiver 220 receives various signals wirelessly and obtains higher layer signals from the received physical layer signals. The receiver 220 also has the function of receiving NR-PSS, NR-SSS, NR-PBCH, DL/UL/SL control signals, DCI via PDCCH, data via PDSCH, etc. transmitted from the base station 10. Also, for example, the transmitting unit 210 may transmit a PSCCH (Physical Sidelink Control Channel), a PSSCH (Physical Sidelink Shared Channel), a PSDCH (Physical Sidelink Discovery Channel), a PSBCH (Physical Sidelink Broadcast Channel), or the like to another terminal 20 as D2D communication, and the receiving unit 120 may receive a PSCCH, a PSSCH, a PSDCH, or a PSBCH, or the like, from the other terminal 20.

The setting unit 230 stores various setting information received by the receiving unit 220 from the base station 10 or other terminals in a storage device provided in the setting unit 230, and reads it from the storage device as necessary. The setting unit 230 also stores setting information that is set in advance. The control unit 240 controls the terminal 20. The control unit 240 also includes a function for performing LBT.

The terminal or base station of this embodiment may be configured as a terminal or base station as shown in each of the following items. In addition, the following communication method may be implemented.

<Configuration of this embodiment>
(Section 1)
a receiving unit for receiving an instruction for paging and positioning operation;
A control unit that assumes that the paging and the positioning operation are instructed to be performed at the same time.
Terminal.
(Section 2)
The control unit assumes that the control unit will not be activated for the positioning operation if the paging and the positioning operation are not performed at the same time.
2. The terminal according to claim 1.
(Section 3)
The control unit is assumed to be activated for the positioning operation when the paging and the positioning operation are not performed at the same time.
2. The terminal according to claim 1.
(Section 4)
It is assumed that the control unit defines a priority between a sleep state in response to an instruction indicating not to wake up for the paging and a wake-up in response to an instruction of the positioning operation.
A terminal according to any one of claims 1 to 3.
(Section 5)
a transmitting unit for transmitting instructions for paging and positioning operations to the terminal;
A control unit that instructs the terminal to perform the paging and the positioning operation at the same time.
base station.
(Section 6)
receiving an indication of a paging and positioning operation;
and assuming that the paging and the positioning operation are instructed to be performed at the same time.
The communication method implemented by the device.

Any of the above configurations provide a technology that enables low power consumption and high accuracy positioning. According to paragraph 1, it can be assumed that an instruction is given to perform paging and positioning operations at the same time. According to paragraph 2, it can be assumed that if paging and positioning operations are not performed at the same time, the device will not be started for positioning operations. According to paragraph 3, it can be assumed that if paging and positioning operations are not performed at the same time, the device will be started for positioning operations. According to paragraph 4, it can be assumed that a priority order is specified between a sleep state in response to an instruction indicating not to start up for paging, and startup in response to an instruction for positioning operations.

(Hardware configuration)
The block diagrams (FIGS. 12 and 13) used in the description of the above embodiments show functional blocks. These functional blocks (components) are realized by any combination of at least one of hardware and software. The method of realizing each functional block is not particularly limited. That is, each functional block may be realized using one device that is physically or logically coupled, or may be realized using two or more devices that are physically or logically separated and directly or indirectly connected (for example, using wires, wirelessly, etc.). The functional block may be realized by combining the one device or the multiple devices with software.

Functions include, but are not limited to, judgement, determination, judgment, calculation, computation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, election, establishment, comparison, assumption, expectation, regard, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assignment. For example, a functional block (component) that performs the transmission function is called a transmitting unit or transmitter. As mentioned above, there are no particular limitations on the method of realization for either of these.

For example, the base station 10, terminal 20, etc. in one embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure. FIG. 14 is a diagram showing an example of the hardware configuration of the base station 10 and terminal 20 in one embodiment of the present disclosure. The above-mentioned base station 10 and terminal 20 may be physically configured as a computer device including 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, etc.

In the following description, the term "apparatus" can be interpreted as a circuit, device, unit, etc. The hardware configuration of the base station 10 and the terminal 20 may be configured to include one or more of the devices shown in the figure, or may be configured to exclude some of the devices.

The functions of the base station 10 and the terminal 20 are realized by loading specific software (programs) onto hardware such as the processor 1001 and the storage device 1002, causing the processor 1001 to perform calculations, control communications by the communication device 1004, and control at least one of the reading and writing of data in the storage device 1002 and the auxiliary storage device 1003.

The processor 1001, for example, operates an operating system to control the entire computer. The processor 1001 may be configured as a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, registers, etc. For example, the above-mentioned control unit 140, control unit 240, etc. may be realized by the processor 1001.

The processor 1001 reads out a program (program code), software module, 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 the program. The program is a program that causes a computer to execute at least a part of the operations described in the above-mentioned embodiment. For example, the control unit 140 of the base station 10 shown in FIG. 12 may be stored in the storage device 1002 and realized by a control program that runs on the processor 1001. For example, the control unit 240 of the terminal 20 shown in FIG. 13 may be stored in the storage device 1002 and realized by a control program that runs on the processor 1001. Although the above-mentioned various processes have been described as being executed by one processor 1001, they may be executed simultaneously or sequentially by two or more processors 1001. The processor 1001 may be implemented by one or more chips. The program may be transmitted from a network via a telecommunication line.

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

The auxiliary storage device 1003 is a computer-readable recording medium, and may be, for example, at least one of an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (e.g., a compact disk, a digital versatile disk, a Blu-ray (registered trademark) disk), a smart card, a flash memory (e.g., a card, a stick, a key drive), a floppy (registered trademark) disk, a magnetic strip, etc. The above-mentioned storage medium may be, for example, a database, a server, or other suitable medium that includes at least one of the storage device 1002 and 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 referred to as, for example, a network device, a network controller, a network card, a communication module, etc. The communication device 1004 may be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc., to realize at least one of, for example, Frequency Division Duplex (FDD) and Time Division Duplex (TDD). For example, the transmitting/receiving antenna, an amplifier unit, a transmitting/receiving unit, a transmission path interface, etc. may be realized by the communication device 1004. The transmitting/receiving unit may be implemented as a transmitting unit or a receiving unit that is physically or logically separated.

The input device 1005 is an input device (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that accepts input from the outside. The output device 1006 is an output device (e.g., a display, a speaker, an LED lamp, etc.) that performs output to the outside. Note that the input device 1005 and the output device 1006 may be integrated into one structure (e.g., a touch panel).

Furthermore, 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 each device.

Furthermore, the base station 10 and the terminal 20 may be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), or a field programmable gate array (FPGA), and some or all of the functional blocks may be realized by the hardware. For example, the processor 1001 may be implemented using at least one of these pieces of hardware.

FIG. 15 shows an example configuration of a vehicle 2001. As shown in FIG. 15, the vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, front wheels 2007, rear wheels 2008, an axle 2009, an electronic control unit 2010, various sensors 2021-2029, an information service unit 2012, and a communication module 2013. Each aspect/embodiment described in this disclosure may be applied to a communication device mounted on the vehicle 2001, and may be applied to the communication module 2013, for example.

The drive unit 2002 is composed of, for example, an engine, a motor, or a hybrid of an engine and a motor. The steering unit 2003 includes at least a steering wheel (also called a handlebar), and is configured to steer at least one of the front wheels and the rear wheels based on the operation of the steering wheel operated by the user.

The electronic control unit 2010 is composed of a microprocessor 2031, memory (ROM, RAM) 2032, and a communication port (IO port) 2033. Signals are input to the electronic control unit 2010 from various sensors 2021 to 2029 provided in the vehicle 2001. The electronic control unit 2010 may also be called an ECU (Electronic Control Unit).

Signals from the various sensors 2021-2029 include a current signal from a current sensor 2021 that senses the motor current, a front and rear wheel rotation speed signal obtained by a rotation speed sensor 2022, a front and rear wheel air pressure signal obtained by an air pressure sensor 2023, a vehicle speed signal obtained by a vehicle speed sensor 2024, an acceleration signal obtained by an acceleration sensor 2025, an accelerator pedal depression amount signal obtained by an accelerator pedal sensor 2029, a brake pedal depression amount signal obtained by a brake pedal sensor 2026, a shift lever operation signal obtained by a shift lever sensor 2027, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by an object detection sensor 2028.

The information service unit 2012 is composed of various devices, such as a car navigation system, an audio system, speakers, a television, and a radio, for providing (outputting) various information such as driving information, traffic information, and entertainment information, and one or more ECUs for controlling these devices. The information service unit 2012 uses information acquired from external devices via the communication module 2013, etc., to provide various multimedia information and multimedia services to the occupants of the vehicle 2001.

The information service unit 2012 may include input devices (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, a touch panel, etc.) that accept input from the outside, and may also include output devices (e.g., a display, a speaker, an LED lamp, a touch panel, etc.) that perform output to the outside.

The driving assistance system unit 2030 is composed of various devices that provide functions for preventing accidents and reducing the driving burden on the driver, such as a millimeter wave radar, LiDAR (Light Detection and Ranging), a camera, a positioning locator (e.g., GNSS, etc.), map information (e.g., high definition (HD) maps, autonomous vehicle (AV) maps, etc.), a gyro system (e.g., IMU (Inertial Measurement Unit), INS (Inertial Navigation System), etc.), AI (Artificial Intelligence) chip, and an AI processor, as well as one or more ECUs that control these devices. In addition, the driving assistance system unit 2030 transmits and receives various information via the communication module 2013 to realize driving assistance functions or autonomous driving functions.

The communication module 2013 can communicate with the microprocessor 2031 and components of the vehicle 2001 via the communication port. For example, the communication module 2013 transmits and receives data via the communication port 2033 between the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, front wheels 2007, rear wheels 2008, axle 2009, microprocessor 2031 and memory (ROM, RAM) 2032 in the electronic control unit 2010, and sensors 2021 to 29, which are provided on the vehicle 2001.

The communication module 2013 is a communication device that can be controlled by the microprocessor 2031 of the electronic control unit 2010 and can communicate with an external device. For example, it transmits and receives various information to and from the external device via wireless communication. The communication module 2013 may be located either inside or outside the electronic control unit 2010. The external device may be, for example, a base station, a mobile station, etc.

The communication module 2013 may transmit at least one of the signals from the various sensors 2021-2029 described above input to the electronic control unit 2010, information obtained based on the signals, and information based on input from the outside (user) obtained via the information service unit 2012 to an external device via wireless communication. The electronic control unit 2010, the various sensors 2021-2029, the information service unit 2012, etc. may be referred to as input units that accept input. For example, the PUSCH transmitted by the communication module 2013 may include information based on the above input.

The communication module 2013 receives various information (traffic information, signal information, vehicle distance information, etc.) transmitted from an external device, and displays it on the information service unit 2012 provided in the vehicle 2001. The information service unit 2012 may be called an output unit that outputs information (for example, outputs information to a device such as a display or speaker based on the PDSCH (or data/information decoded from the PDSCH) received by the communication module 2013).

The communication module 2013 also stores various information received from external devices in memory 2032 that can be used by the microprocessor 2031. Based on the information stored in memory 2032, the microprocessor 2031 may control the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, front wheels 2007, rear wheels 2008, axles 2009, sensors 2021 to 2029, and the like provided on the vehicle 2001.

(Supplementary description of the embodiment)
Although the embodiment of the present invention has been described above, the disclosed invention is not limited to such an embodiment, and those skilled in the art will understand various modifications, modifications, alternatives, replacements, and the like. Although the description has been given using specific numerical examples to facilitate understanding of the invention, unless otherwise specified, those numerical values are merely examples and any appropriate value may be used. The division of items in the above description is not essential to the present invention, and items described in two or more items may be used in combination as necessary, and items described in one item may be applied to items described in another item (as long as there is no contradiction). The boundaries of functional units or processing units in the functional block diagram do not necessarily correspond to the boundaries of physical parts. The operations of multiple functional units may be physically performed by one part, or the operations of one functional unit may be physically performed by multiple parts. The order of processing procedures described in the embodiment may be changed as long as there is no contradiction. For convenience of processing description, the base station 10 and the terminal 20 have been described using functional block diagrams, but such devices may be realized by hardware, software, or a combination thereof. The software operated by the processor possessed by the base station 10 in accordance with an embodiment of the present invention and the software operated by the processor possessed by the terminal 20 in accordance with an embodiment of the present invention may each be stored in random access memory (RAM), flash memory, read only memory (ROM), EPROM, EEPROM, register, hard disk (HDD), removable disk, CD-ROM, database, server or any other suitable storage medium.

Furthermore, the notification of information is not limited to the aspects/embodiments described in the present disclosure and may be performed using other methods. For example, the notification of information may be performed by physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI)), higher layer signaling (e.g., Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling), broadcast information (Master Information Block (MIB), System Information Block (SIB)), other signals, or a combination of these. Furthermore, RRC signaling may be referred to as an RRC message, and may be, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, etc.

Each aspect/embodiment described in this disclosure may be a mobile communication system (mobile communications system) for mobile communications over a wide range of networks, including LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system), 6th generation mobile communication system (6G), xth generation mobile communication system (xG) (xG (x is, for example, an integer or a decimal number)), FRA (Future Ra The present invention may be applied to at least one of systems using IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth (registered trademark), and other appropriate systems, and next-generation systems that are expanded, modified, created, or defined based on these. It may also be applied to a combination of multiple systems (for example, a combination of at least one of LTE and LTE-A with 5G, etc.).

The processing steps, sequences, flow charts, etc. of each aspect/embodiment described herein may be reordered unless inconsistent. For example, the methods described in this disclosure present elements of various steps using an exemplary order and are not limited to the particular order presented.

In this specification, certain operations that are described as being performed by the base station 10 may in some cases be performed by its upper node. In a network consisting of one or more network nodes having a base station 10, it is clear that various operations performed for communication with a terminal 20 may be performed by at least one of the base station 10 and other network nodes other than the base station 10 (such as, but not limited to, an MME or S-GW). Although the above example shows a case where there is one other network node other than the base station 10, the other network node may be a combination of multiple other network nodes (such as an MME and an S-GW).

The information or signals described in this disclosure may be output from a higher layer (or a lower layer) to a lower layer (or a higher layer). They may be input and output via multiple network nodes.

The input and output information may be stored in a specific location (e.g., memory) or may be managed using a management table. The input and output information may be overwritten, updated, or added to. The output information may be deleted. The input information may be sent to another device.

The determination in this disclosure may be based on a value represented by one bit (0 or 1), a Boolean (true or false) value, or a comparison of numerical values (e.g., a comparison with a predetermined value).

Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.

Software, instructions, information, etc. may also be transmitted and received via a transmission medium. For example, if the software is transmitted from a website, server, or other remote source using at least one of wired technologies (such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL)), and/or wireless technologies (such as infrared, microwave), then at least one of these wired and wireless technologies is included within the definition of a transmission medium.

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

Note that the terms explained in this disclosure and the terms necessary for understanding this disclosure may be replaced with terms having the same or similar meanings. For example, at least one of the channel and the symbol may be a signal (signaling). Also, the signal may be a message. Also, the component carrier (CC) may be called a carrier frequency, a cell, a frequency carrier, etc.

As used in this disclosure, the terms "system" and "network" are used interchangeably.

In addition, the information, parameters, etc. described in this disclosure may be represented using absolute values, may be represented using relative values from a predetermined value, or may be represented using other corresponding information. For example, a radio resource may be indicated by an index.

The names used for the above-mentioned parameters are not limiting in any respect. Furthermore, the formulas etc. using these parameters may differ from those explicitly disclosed in this disclosure. The various channels (e.g., PUCCH, PDCCH, etc.) and information elements may be identified by any suitable names, and therefore the various names assigned to these various channels and information elements are not limiting in any respect.

In this disclosure, terms such as "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", "cell group", "carrier", and "component carrier" may be used interchangeably. A base station may also be referred to by terms such as macrocell, small cell, femtocell, and picocell.

A base station can accommodate one or more (e.g., three) cells. When a base station accommodates multiple cells, the entire coverage area of the base station can be divided into multiple smaller areas, and each smaller area can also provide communication services by a base station subsystem (e.g., a small indoor base station (RRH: Remote Radio Head)). The term "cell" or "sector" refers to a part or the entire coverage area of at least one of the base station and base station subsystems that provide communication services in this coverage.

In this disclosure, a base station transmitting information to a terminal may be interpreted as the base station instructing the terminal to control or operate based on the information.

In this disclosure, terms such as "Mobile Station (MS)," "user terminal," "User Equipment (UE)," and "terminal" may be used interchangeably.

A mobile station may also be referred to by those skilled in the art as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology.

At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a communication device, etc. At least one of the base station and the mobile station may be a device mounted on a moving object, the moving object itself, etc. The moving object is a movable object, and the moving speed is arbitrary. It also includes the case where the moving object is stopped. The moving object includes, but is not limited to, for example, a vehicle, a transport vehicle, an automobile, a motorcycle, a bicycle, a connected car, an excavator, a bulldozer, a wheel loader, a dump truck, a forklift, a train, a bus, a handcar, a rickshaw, a ship and other watercraft, an airplane, a rocket, an artificial satellite, a drone (registered trademark), a multicopter, a quadcopter, a balloon, and objects mounted thereon. The moving object may also be a moving object that travels autonomously based on an operation command. It may be a vehicle (e.g., a car, an airplane, etc.), an unmanned moving object (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned). In addition, at least one of the base station and the mobile station may be a device that does not necessarily move during communication operations. For example, at least one of the base station and the mobile station may be an IoT (Internet of Things) device such as a sensor.

Furthermore, the base station in the present disclosure may be read as a user terminal. For example, each aspect/embodiment of the present disclosure may be applied to a configuration in which communication between a base station and a user terminal is replaced with communication between multiple terminals 20 (which may be called, for example, D2D (Device-to-Device) or V2X (Vehicle-to-Everything)). In this case, the terminal 20 may be configured to have the functions of the base station 10 described above. Furthermore, terms such as "uplink" and "downlink" may be read as terms corresponding to terminal-to-terminal communication (for example, "side"). For example, the uplink channel, downlink channel, etc. may be read as a side channel.

Similarly, the user terminal in this disclosure may be interpreted as a base station. In this case, the base station may be configured to have the functions of the user terminal described above.

As used in this disclosure, the terms "determining" and "determining" may encompass a wide variety of actions. "Determining" and "determining" may include, for example, judging, calculating, computing, processing, deriving, investigating, looking up, search, inquiry (e.g., searching in a table, database, or other data structure), and considering ascertaining as "judging" or "determining." Also, "determining" and "determining" may include receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, accessing (e.g., accessing data in memory), and considering ascertaining as "judging" or "determining." Additionally, "judgment" and "decision" can include considering resolving, selecting, choosing, establishing, comparing, etc., to have been "judged" or "decided." In other words, "judgment" and "decision" can include considering some action to have been "judged" or "decided." Additionally, "judgment (decision)" can be interpreted as "assuming," "expecting," "considering," etc.

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

The reference signal may also be abbreviated as RS (Reference Signal) or may be called a pilot depending on the applicable standard.

As used in this disclosure, the phrase "based on" does not mean "based only on," unless expressly stated otherwise. In other words, the phrase "based on" means both "based only on" and "based at least on."

Any reference to an element using a designation such as "first," "second," etc., 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, a reference to a first and a second element does not imply that only two elements may be employed or that the first element must precede the second element in some way.

The "means" in the configuration of each of the above devices may be replaced with "part," "circuit," "device," etc.

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

A radio frame may be composed of one or more frames in the time domain. Each of the one or more frames in the time domain may be called a subframe. A subframe may further be composed of one or more slots in the time domain. A subframe may have a fixed time length (e.g., 1 ms) that is independent of numerology.

Numerology may be a communication parameter that applies to at least one of the transmission and reception of a signal or channel. Numerology may indicate, for example, at least one of the following: subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame structure, a specific filtering process performed by the transceiver in the frequency domain, a specific windowing process performed by the transceiver in the time domain, etc.

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

A slot may include multiple minislots. Each minislot may consist of one or multiple symbols in the time domain. A minislot may also be called a subslot. A minislot may consist of fewer symbols than a slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a minislot may be called PDSCH (or PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a minislot may be called PDSCH (or PUSCH) mapping type B.

Radio frame, subframe, slot, minislot, and symbol all represent time units for transmitting signals. Radio frame, subframe, slot, minislot, and symbol may each be referred to by a different name that corresponds to the radio frame, subframe, slot, minislot, and symbol.

For example, one subframe may be called a Transmission Time Interval (TTI), multiple consecutive subframes may be called a TTI, or one slot or one minislot may be called a TTI. In other words, at least one of the subframe and the TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (e.g., 1-13 symbols), or a period longer than 1 ms. Note that the unit representing the TTI may be called a slot, minislot, etc., instead of a subframe.

Here, TTI refers to, for example, the smallest time unit for scheduling in wireless communication. For example, in an LTE system, a base station performs scheduling to allocate wireless resources (such as frequency bandwidth and transmission power that can be used by each terminal 20) to each terminal 20 in TTI units. Note that the definition of TTI is not limited to this.

The TTI may be a transmission time unit for a channel-coded data packet (transport block), a code block, a code word, etc., or may be a processing unit for scheduling, link adaptation, etc. When a TTI is given, the time interval (e.g., the number of symbols) in which a transport block, a code block, a code word, etc. is actually mapped may be shorter than the TTI.

Note that when one slot or one minislot is called a TTI, one or more TTIs (i.e., one or more slots or one or more minislots) may be the minimum time unit of scheduling. In addition, the number of slots (minislots) that constitute the minimum time unit of 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, etc. A TTI shorter than a normal TTI may be called a shortened TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, minislot, subslot, slot, etc.

Note that a long TTI (e.g., a normal TTI, a subframe, etc.) may be interpreted as a TTI having a time length of more than 1 ms, and a short TTI (e.g., a shortened TTI, etc.) may be interpreted as a TTI having a TTI length shorter than the TTI length of a long TTI and equal to or greater than 1 ms.

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

Furthermore, the time domain of an RB may include one or more symbols and may be one slot, one minislot, one subframe, or one TTI in length. One TTI, one subframe, etc. may each be composed of one or more resource blocks.

In addition, one or more RBs may be referred to as a physical resource block (PRB), a sub-carrier group (SCG), a resource element group (REG), a PRB pair, an RB pair, etc.

Furthermore, a resource block may be composed of one or more resource elements (REs). For example, one RE may be a radio resource area of one subcarrier and one symbol.

A bandwidth part (BWP), which may also be referred to as a partial bandwidth, may represent a subset of contiguous common resource blocks (RBs) for a given numerology on a given carrier, where the common RBs may be identified by an index of the RB relative to a common reference point of the carrier. PRBs may be defined in a BWP and numbered within the BWP.

The BWP may include a BWP for UL (UL BWP) and a BWP for DL (DL BWP). One or more BWPs may be configured within one carrier for the terminal 20.

At least one of the configured BWPs may be active, and the terminal 20 may not be expected to transmit or receive a specific signal/channel outside the active BWP. Note that "cell," "carrier," and the like in this disclosure may be read as "BWP."

The above-mentioned structures of radio frames, subframes, slots, minislots, and symbols are merely examples. For example, the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of subcarriers included in an RB, as well as the number of symbols in a TTI, the symbol length, and the cyclic prefix (CP) length can be changed in various ways.

In this disclosure, where articles have been added through translation, such as a, an, and the in English, this disclosure may include that the nouns following these articles are plural.

In this disclosure, the term "A and B are different" may mean "A and B are different from each other." The term may also mean "A and B are each different from C." Terms such as "separate" and "combined" may also be interpreted in the same way as "different."

Each aspect/embodiment described in this disclosure may be used alone, in combination, or switched between depending on the execution. In addition, notification of specific information (e.g., notification that "X is the case") is not limited to being done explicitly, but may be done implicitly (e.g., not notifying the specific information).

　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 herein. The present disclosure can be implemented in modified and altered forms without departing from the spirit and scope of the present disclosure as defined by the claims. Therefore, the description of the present disclosure is intended as an illustrative example and does not have any limiting meaning with respect to the present disclosure.

10 Base station 110 Transmitter 120 Receiver 130 Setting unit 140 Control unit 20 Terminal 210 Transmitter 220 Receiver 230 Setting unit 240 Control unit 1001 Processor 1002 Storage device 1003 Auxiliary storage device 1004 Communication device 1005 Input device 1006 Output device 2001 Vehicle 2002 Drive unit 2003 Steering unit 2004 Accelerator pedal 2005 Brake pedal 2006 Shift lever 2007 Front wheel 2008 Rear wheel 2009 Axle 2010 Electronic control unit 2012 Information service unit 2013 Communication module 2021 Current sensor 2022 Rotational speed sensor 2023 Air pressure sensor 2024 Vehicle speed sensor 2025 Acceleration sensor 2026 Brake pedal sensor 2027 Shift lever sensor 2028 Object detection sensor 2029 Accelerator pedal sensor 2030 Driving assistance system unit 2031 Microprocessor 2032 Memory (ROM, RAM)
2033 Communication port (IO port)

Claims (6)

1. a receiving unit for receiving an instruction for paging and positioning operation;
   A control unit that assumes that the paging and the positioning operation are instructed to be performed at the same time.
   Terminal.
2. The control unit assumes that the control unit will not be activated for the positioning operation if the paging and the positioning operation are not performed at the same time.
   The terminal according to claim 1.
3. The control unit is assumed to be activated for the positioning operation when the paging and the positioning operation are not performed at the same time.
   The terminal according to claim 1.
4. It is assumed that the control unit defines a priority between a sleep state in response to an instruction indicating not to wake up for the paging and a wake-up in response to an instruction of the positioning operation.
   The terminal according to claim 1.
5. a transmitting unit for transmitting instructions for paging and positioning operations to the terminal;
   A control unit that instructs the terminal to perform the paging and the positioning operation at the same time.
   base station.
6. receiving an indication of a paging and positioning operation;
   and assuming that the paging and the positioning operation are instructed to be performed at the same time.
   The communication method implemented by the device.

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