JP2021504988A - Operating methods and user equipment for bandwidth partial timer configurations - Google Patents

Abstract

A method and user equipment that can operate for a bandwidth portion (BWP) timer configuration is provided. The method relates to receiving a downlink assignment from a network node via a physical downlink control channel (PDCCH) on the activated BWP and, according to the downlink assignment, the activated BWP. Includes controlling the BWP timer.

Description

The present disclosure relates to the field of communication systems and, in more detail, to methods and user equipment capable of operating for Bandwidth Part (BWP) timer configurations.

If the bandwidth portion (BWP) timer is less than the duration of data transmission, a device such as a user device will not transmit and / or receive the remaining data. That is, data transmission may be interrupted due to the expiration of the BWP timer.

It is necessary to provide a method that can operate for the configuration of the bandwidth portion (BWP) timer and a new technical solution for the user equipment.

An object of the present disclosure is to ensure data transmission and to propose methods and user equipment that can operate for bandwidth portion (BWP) timer configurations.

In the first aspect of the present disclosure, user equipment capable of operating for a bandwidth portion (BWP) timer configuration includes a memory, a transceiver, and a memory and a processor coupled to the transceiver. The processor controls the transceiver to receive the downlink assignment from the network node via the physical downlink control channel (PDCCH) on the activated BWP, and according to the downlink assignment to the activated BWP. It is configured to control the associated BWP timer.

In the second aspect of the present disclosure, a method capable of operating for the bandwidth portion (BWP) timer configuration of the user equipment is via a physical downlink control channel (PDCCH) on the activated BWP, a network node. Includes receiving downlink assignments from and controlling the BWP timer associated with the activated BWP according to the downlink assignments.

In a third aspect of the present disclosure, a non-transitory machine-readable storage medium stores instructions that cause the computer to perform the above method when executed by the computer.

In a fourth aspect of the present disclosure, the terminal device includes a processor and a memory configured to store a computer program. The processor is configured to execute a computer program stored in memory to perform the above method.

In order to more clearly show embodiments of the present disclosure or related techniques, the following figures will be briefly described in embodiments. It is clear that the drawings are only a few examples of the present disclosure, and those skilled in the art can obtain other drawings according to these figures without making any assumptions.
FIG. 1 is a block diagram of a user device capable of operating for a bandwidth portion (BWP) timer configuration according to an embodiment of the present disclosure. FIG. 2 is a flowchart showing a method that can operate with respect to the BWP timer configuration of the user equipment according to the embodiment of the present disclosure. FIG. 3 is a schematic diagram showing a control method of the BWP timer according to the embodiment of the present disclosure. FIG. 4 is a schematic diagram showing a control method of the BWP timer according to another embodiment of the present disclosure. FIG. 5 is a schematic diagram showing a control method of the BWP timer according to another embodiment of the present disclosure. FIG. 6 is a schematic diagram showing a control method of the BWP timer according to another embodiment of the present disclosure. FIG. 7 is a block diagram of a wireless communication system according to an embodiment of the present disclosure.

Hereinafter, with reference to the accompanying drawings, the technical matters, structural features, achievement objectives, effects, etc. of the embodiments of the present disclosure will be described in detail. Specifically, the terms in the embodiments of the present disclosure are for explaining the purpose of a particular embodiment and are not intended to limit the disclosure.

FIG. 1 shows that in some embodiments, the user equipment (UE) 10 capable of operating for a bandwidth portion (BWP) timer configuration may include a processor 11, a memory 12, and a transceiver 13. Processor 11 can be configured to implement the proposed functions, procedures, and / or methods described herein. The layer of wireless interface protocol may be implemented in processor 11. The memory 12 is operably coupled to the processor 11 and stores various information for operating the processor 11. The transceiver 13 is operably coupled to the processor 11 to transmit and / or receive radio signals.

The processor 11 can include application-specific integrated circuits (ASICs), other chipsets, logic circuits and / or data processing units. The memory 12 can include a read-only memory (ROM: Read-Only Memory), a random access memory (RAM: Random Access Memory), a flash memory, a memory card, a storage medium, and / or other storage devices. The transceiver 13 can include a baseband circuit that processes radio frequency signals. When the embodiments are implemented in software, the techniques described herein can be performed in modules (eg, procedures, functions, etc.) that perform the functions described herein. The module is stored in memory 12 and can be executed by processor 11. The memory 12 may be mounted inside the processor 11 or outside the processor 11, in which case the memory 12 is communicably coupled to the processor 11 via various means known in the art. May be done.

Communication between multiple user devices is based on the side link technology developed after the 3rd Generation Partnership Project (3GPP) New Radio (NR: New Radio) Release 16 and later, vehicle-to-vehicle (V2V: Vehicle-to-Vehicle (V2P), Vehicle-to-Pedestrian (V2P: Vehicle-to-Pedestrian), Vehicle-to-Infrastructure / Network (V2I / N: Vehicle-to-Infrastructure / Network). to-Everything) related to all communications. The plurality of user devices communicate directly with each other via a side link interface such as a PC5 interface.

In some embodiments, processor 11 controls transceiver 13 to receive downlink assignments from network nodes via a physical downlink control channel (PDCCH) on the activated BWP, according to the downlink assignments. , Controls the BWP timer associated with the activated BWP.

FIG. 2 shows a method 200 that can operate with respect to the BWP timer configuration of the user device 10 according to the embodiment of the present disclosure. Method 200 receives a downlink assignment from a network node at block 202 via a physical downlink control channel (PDCCH) on the activated BWP and is active at block 204 according to the downlink assignment. It includes controlling the BWP timer associated with the converted BWP.

In some embodiments, the BWP timer is, for example, a BWP inactive timer. When the user device is sending and receiving data over the network, the user device is in active or activated mode. While in the active or activated mode, the user equipment can send and receive data over the network with virtually no delay due to establishing a connection to the network. After a predetermined time when no data is transmitted between the user device and the network, the user device automatically switches to the inactive or deactivated mode. The inactivity time before the user device switches to the inactive or inactive mode is controlled by the BWP-inactivity timer.

1 and 3 show that in some embodiments, the PDCCH carries downlink control information (DCI) 300, including downlink allocation. In some embodiments, if the downlink allocation does not stop when the activated BWP expires, then the processor 11 controls the BWP timer associated with the activated BWP according to the downlink allocation. Includes starting or restarting the BWP timer during transmission. For example, if the downlink allocation does not stop when the activated BWP expires after the first transmission 301 and the second transmission 302 of the transport block carried according to the downlink allocation, that is, the downlink allocation. Controlling a BWP timer activated according to a downlink allocation is down if the first and second transmissions 302 of the transport block carried according to are of a valid duration for the BWP timer. A third of the transport blocks carried by the processor 11 is such that the third and fourth transmissions 303 and 304 of the transport block carried according to the link assignment have a valid duration for the BWP timer. This includes starting or restarting the BWP timer at the start of transmission 303.

FIG. 1, FIG. 4, and FIG. 5 show that in some embodiments, the PDCCH carries downlink control information (DCI) 300, including downlink assignment. In some embodiments, the processor 11 sets the BWP timer when the transceiver 13 receives the DCI 300, at the start of data transmission (as shown in FIG. 5) or during data transmission (as shown in FIG. 4). Stop. In some embodiments, the processor 11 stops the BWP timer at the start of data transmission (as shown in FIG. 5) or during data transmission (as shown in FIG. 4) after the transceiver 13 receives the DCI 300. To do. The processor 11 restarts the BWP timer after data transmission (as shown in FIG. 5) or during data transmission (as shown in FIG. 4).

1 and 4 show that in some embodiments, the processor 11 stops the BWP timer after the last symbol of the first transmission 401 of the transport block carried according to the downlink allocation, resulting in a down. The first transmission 401 of the transport block carried according to the link assignment has a valid duration for the BWP timer. The second transmission 402 and the third transmission 403 of the transport block carried according to the downlink allocation are also valid durations for the BWP timer. Controlling the BWP timer associated with the activated BWP according to the downlink allocation ensures that the fourth transmission 404 of the transport block carried according to the downlink allocation has a valid duration for the BWP timer. Including the processor 11 restarting the BWP timer at the first symbol of the last transmission, such as the fourth transmission 404 of the transport block carried according to the downlink allocation.

1 and 5 show that, in some embodiments, controlling a BWP timer associated with a BWP activated according to a downlink assignment allows the processor 11 to set the BWP timer at the first symbol of the downlink assignment. Indicates that it involves stopping or starting. In some embodiments, processor 11 restarts the BWP timer after the last symbol of the downlink allocation. The first transmission 501, the second transmission 502, the third transmission 503, and the fourth transmission 404 of the transport block carried according to the downlink allocation are valid durations for the BWP timer.

1 and 6 show that in some embodiments, the PDCCH carries downlink control information (DCI) 300, including downlink assignment. In some embodiments, controlling the BWP timer associated with the BWP activated according to the downlink allocation involves the processor 11 restarting the BWP timer when a retransmission occurs. The retransmission may be an automatic retransmission. Specifically, when the activated BWP receives a PDCCH indicating a downlink allocation, the processor 11 starts or restarts the BWP timer and also at the same activated BWP as the first transmission 601. When the downlink allocation for retransmission is received, the BWP timer is started or restarted. Upon receiving the retransmission at the activated BWP indicated by the last PDCCH, the processor 11 starts or restarts the BWP timer. The processor 11 restarts the BWP timer at the first symbol of the first transmit 601 and the second transmit 602, the third transmit 603, and the fourth transmit 604 of the transport block carried according to the downlink allocation. , Each of the first transmission 601 and the second transmission 602, the third transmission 603, and the fourth transmission 604 of the transport block carried according to the downlink allocation is a valid duration for the BWP timer. To do so.

In some embodiments, the BWP timer is determined by a set value and a data transmission duration. In particular, the data transmission duration is the range between the first symbol of the downlink allocation and the last symbol of the last transmission of the transport block carried according to the downlink allocation. The BWP timer is the set value and the maximum value of the data transmission time. In some embodiments, the DCI is separated from the first transmit transport block carried according to the downlink allocation. For example, there is a duration between DCI and the first transmission, for example 1 microsecond.

FIG. 7 is a block diagram of an exemplary system 700 for wireless communication according to an embodiment of the present disclosure. The embodiments described herein can be implemented in a system using any well-configured hardware and / or software. FIG. 7 shows radio frequency (RF) circuits 710, baseband circuits 720, application circuits 730, memory / storage devices 740, displays 750, cameras 760, sensors 770, and inputs and outputs, at least coupled to each other as shown. I / O) shows system 700 including interface 780.

Application circuit 730 can include, but is not limited to, one or more circuits such as single-core or multi-core processors. The processor can include any combination of a general purpose processor and a dedicated processor such as a graphics processor or an application processor. The processor is coupled to a memory / storage device and can be configured to execute instructions stored in the memory / storage device to enable various applications and / or operating systems running on the system.

The baseband circuit 720 can include, but is not limited to, one or more circuits such as single-core or multi-core processors. The processor can include a baseband processor. The baseband circuit can handle various radio control functions that allow communication with one or more radio networks via the RF circuit. Radio control functions can include, but are not limited to, signal modulation, coding, decoding, radio frequency shifting, and the like. In some embodiments, the baseband circuit can provide communication compatible with one or more radio technologies. For example, in some embodiments, the baseband circuit is an Evolved Universal Terrestrial Radio Access Network (EUTRAN) and / or other Wireless Metropolitan Area Networks (WMAN), wireless. It can support communication with a local area network (WLAN: Wireless Local Area Network) and a wireless personal area network (WPAN: Wireless Personal Area Network). An embodiment in which the baseband circuit is configured to support radio communication of a plurality of radio protocols is called a multimode baseband circuit.

In various embodiments, the baseband circuit 720 can include circuits that operate on signals that are not strictly considered to be at the baseband frequency. For example, in some embodiments, the baseband circuit may include a circuit that operates on a signal having an intermediate frequency between the baseband frequency and the radio frequency.

The RF circuit 710 can enable communication with a wireless network that uses modulated electromagnetic radiation via a non-solid medium. In various embodiments, the RF circuit can include switches, filters, amplifiers, etc. to facilitate communication with the wireless network.

In various embodiments, the RF circuit 710 can include circuits that operate on signals that are not strictly considered to be at radio frequencies. For example, in some embodiments, the RF circuit can include a circuit that operates on a signal having an intermediate frequency between the baseband frequency and the radio frequency.

In various embodiments, the transmitter circuit, control circuit, or receiver circuit described above with respect to the user equipment, eNB, or gNB is in one or more of RF circuits, baseband circuits, and / or application circuits. All or part may be carried out. As used herein, an ASIC is an application that executes one or more software or firmware programs, combination logic circuits, and / or other suitable hardware components that provide the described functionality. To refer to integrated circuits (ASICs), electronic circuits, processors (shared, dedicated, or group), and / or memory (shared, dedicated, or group), or to be part of or include them. it can. In some embodiments, the electronic device circuit may be implemented within one or more software or firmware modules, or the functionality associated with the circuit may be implemented by one or more software or firmware modules. ..

In some embodiments, some or all of the components of the baseband circuit, application circuit, and / or memory / storage device can be implemented together on a system on chip (SOC).

Memory / storage device 740 can be used, for example, to load and store system data and / or instructions. The memory / storage device of one embodiment can include any combination of suitable volatile memory such as dynamic random access memory (DRAM) and / or non-volatile memory such as flash memory.

In various embodiments, the I / O interface 780 is designed to allow one or more user interfaces designed to allow user interaction with the system and / or peripheral component interactions with the system. Can include peripheral component interfaces. User interfaces can include, but are not limited to, physical keyboards or keypads, touchpads, speakers, microphones, and the like. Peripheral component interfaces can include, but are not limited to, non-volatile memory ports, universal serial bus (USB) ports, audio jacks, and power interfaces.

In various embodiments, the sensor 770 can include one or more detectors for determining environmental conditions and / or location information associated with the system. In some embodiments, the sensor can include, but is not limited to, a gyro sensor, an accelerometer, a proximity sensor, an ambient light sensor, and a positioning unit. The positioning unit may also be part of or interact with baseband and / or RF circuits to communicate with components of the positioning network, such as Global Positioning System (GPS) satellites. You may.

In various embodiments, the display 750 can include displays such as liquid crystal displays and touch screen displays. In various embodiments, the system 700 is a mobile computing device such as, but not limited to, a laptop computing device, a tablet computing device, a netbook, an ultrabook, or a smartphone. be able to. In various embodiments, the system can have more or fewer components and / or different architectures. If necessary, the method described herein can be implemented as a computer program. The computer program can be stored in a storage medium such as a non-temporary storage medium.

In embodiments of the present disclosure, methods and user equipment that are operational for a bandwidth portion (BWP) timer configuration are provided to ensure data transmission. An embodiment of the present disclosure is a combination of techniques / processes that can be employed in the 3GPP specification to create a final product.

Those skilled in the art will appreciate that the units, algorithms, and steps disclosed in the embodiments of the present disclosure will be implemented using electronic hardware, or a combination of computer and software for electronic hardware. .. Whether a function is performed in hardware or software depends on the conditions of the application and the design requirements of the technical plan.

One of ordinary skill in the art may use different methods to achieve functionality for a particular application, but such realization is not beyond the scope of the present disclosure. Since the operating processes of the systems, devices and units described above are essentially the same, one of ordinary skill in the art will appreciate that the operating processes of the systems, devices and units in the embodiments described above can be referenced. For the sake of brevity and simplicity, these work processes are not described in detail.

It is understood that the disclosed systems, devices, and methods in the embodiments of the present disclosure are feasible in other ways. The above embodiments are merely exemplary. The division of units is simply based on logical function, and other divisions actually exist. It is possible to combine or integrate multiple units or components into different systems. In addition, some characteristics may be omitted or skipped. On the other hand, the interconnect, direct, or communicative coupling displayed or described, either electrically, mechanically, or indirectly or communicatively by some other form, is through several ports, devices, or units. Operate.

Units as separate components for illustration are either physically separated or not separated. The units for display are physical units or not physical units, that is, they are located in one place or distributed across multiple network units. Some or all of the units are used according to the purposes of the embodiment. Further, each functional unit in each embodiment may be integrated into one processing unit, may be physically independent, or may be integrated into one processing unit by two or more processing units. May be good.

When a software function unit is realized, used as a product, and sold, it can be stored in a computer's readable storage medium. Based on this understanding, the technical plans proposed by the present disclosure can be realized essentially or in part in the form of software products. Alternatively, some of the technical plans that are useful to the prior art can be realized in the form of software products. The software product in the computer is stored on a storage medium containing multiple commands to a computing device (such as a personal computer, server, or network device) for performing all or part of the steps disclosed by embodiments of this disclosure. Will be done. Storage media include USB disks, mobile hard disks, read-only memory (ROM), random access memory (RAM), floppy (registered trademark) disks, or other types of media capable of storing program code.

Although the present disclosure has been described in connection with what is considered to be the most practical and preferred embodiment, the present disclosure is not limited to the disclosed embodiments and is the broadest interpretation of the appended claims. It is understood that it is intended to cover various configurations that are made without departing from the scope of.

Claims (26)

A user device that can operate for a bandwidth portion (BWP) timer configuration and
With memory
Transceiver and
With the memory and a processor coupled to the transceiver
The processor controls the transceiver to receive a downlink assignment from a network node via a physical downlink control channel (PDCCH) on the activated BWP.
It is configured to control the BWP timer associated with the activated BWP according to the downlink assignment.
User device. The user device according to claim 1, wherein the PDCCH carries downlink control information (DCI) having the downlink assignment. If the downlink allocation does not stop when the activated BWP expires, controlling the BWP timer associated with the activated BWP according to the downlink allocation can be done.
The processor starts or restarts the BWP timer during data transmission.
The user device according to claim 1 or 2. Controlling the BWP timer associated with the activated BWP according to the downlink assignment
When the transceiver receives the DCI, or after the transceiver receives the DCI, the processor stops the BWP timer at the start of or during data transmission.
The user device according to claim 2. Controlling the BWP timer associated with the activated BWP according to the downlink assignment
The processor stops the BWP timer at the first symbol of the downlink allocation or after the last symbol of the first transmission of the transport block carried according to the downlink allocation.
The user device according to claim 1. The processor is further configured to restart the BWP timer after the last symbol of the downlink allocation or at the first symbol of the last transmission of the transport block carried according to the downlink allocation. , The user device according to claim 5. The user device according to any one of claims 1 to 6, wherein the processor is further configured to restart the BWP timer when retransmission occurs. When the PDCCH indicating the downlink allocation is received on the activated BWP, controlling the BWP timer associated with the activated BWP according to the downlink allocation means that the processor controls the BWP. It is equipped to start or restart the timer,
If the downlink allocation for retransmission is received on the same activated BWP as the first transmission, the processor is further configured to start or restart the BWP timer.
The user device according to any one of claims 1 to 6. The user device of claim 8, wherein the processor is configured to start or restart the BWP timer when a retransmission is received on the activated BWP as directed by the last PDCCH. The user device according to any one of claims 1 to 9, wherein the BWP timer is determined by a set value and a data transmission duration. 10. The data transmission duration is the range between the first symbol of the downlink allocation and the last symbol of the last transmission of the transport block carried according to the downlink allocation, claim 10. User equipment. The user device according to claim 10 or 11, wherein the BWP timer is a maximum value of the set value and the data transmission duration. A method that can operate on the bandwidth portion (BWP) timer configuration of the user equipment.
Receiving downlink assignments from network nodes via the Physical Downlink Control Channel (PDCCH) on the activated BWP,
To control the BWP timer associated with the activated BWP according to the downlink assignment.
How to prepare. 13. The method of claim 13, wherein the PDCCH carries downlink control information (DCI) with said downlink assignment. If the downlink allocation does not stop when the activated BWP expires, controlling the BWP timer associated with the activated BWP according to the downlink allocation can be done during data transmission. 13. The method of claim 13 or 14, comprising starting or restarting the timer. Controlling the BWP timer associated with the activated BWP according to the downlink assignment
It comprises stopping the BWP timer at the start of data transmission or during data transmission when the DCI is received or after the DCI is received.
The method according to claim 14. Controlling the BWP timer associated with the activated BWP according to the downlink assignment
It comprises stopping the BWP timer at the first symbol of the downlink allocation or after the last symbol of the first transmission of the transport block carried according to the downlink allocation.
The method according to claim 14. 17. The claim 17 further comprises restarting the BWP timer after the last symbol of the downlink allocation or at the first symbol of the last transmission of the transport block carried according to the downlink allocation. The method described. The method according to any one of claims 15 to 18, further comprising restarting the BWP timer when a retransmission occurs. When the PDCCH indicating the downlink assignment is received on the activated BWP, controlling the BWP timer associated with the activated BWP according to the downlink assignment causes the BWP timer. It has to start or restart,
If the downlink allocation for retransmission is received on the same activated BWP as the first transmission, the method further comprises starting or resuming the BWP timer, claims 15-18. The method according to any one of the above. 20. The method of claim 20, wherein the method comprises starting or restarting the BWP timer when a retransmission is received on the activated BWP as directed by the last PDCCH. The method according to any one of claims 13 to 21, wherein the BWP timer is determined by a set value and a data transmission duration. 22. The data transmission duration is the range between the first symbol of the downlink allocation and the last symbol of the last transmission of the transport block carried according to the downlink allocation. Method. The method according to claim 22 or 23, wherein the BWP timer is the maximum value of the set value and the data transmission duration. A non-transitory machine-readable storage medium that stores instructions that, when executed by a computer, cause the computer to perform the method according to any one of claims 13-24. A processor and a memory for storing a computer program are provided, and the processor executes the computer program stored in the memory to execute the method according to any one of claims 13 to 24. A terminal device configured in.

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