CN115955709A - Method, device, equipment and storage medium for determining radio frequency bandwidth - Google Patents

Abstract

The application discloses a method, a device, equipment and a storage medium for determining radio frequency bandwidth, and relates to the field of mobile communication. The method comprises the following steps: determining a first operating bandwidth of the radio frequency component based on the CORESET configuration; and adjusting the working bandwidth of the radio frequency component to the first working bandwidth. The terminal equipment is supported to determine the first working bandwidth of the radio frequency component through CORESET configuration, so that the terminal equipment works on the actually required bandwidth, the waste of the bandwidth is avoided, and the power consumption of the terminal equipment is saved.

Description

Method, device, equipment and storage medium for determining radio frequency bandwidth

technical field

The present application relates to the field of mobile communication, and in particular to a method, device, equipment and storage medium for determining radio frequency bandwidth.

Background technique

In related technologies, the network device is supported to instruct the terminal device to switch to a differently configured Bandwidth Part (BWP) to perform service operations based on the service status of the terminal device, so that the terminal device can save power consumption while meeting service requirements.

In the case of no business, the terminal device only needs to monitor the Physical Downlink Control Channel (PDCCH). However, the BWP bandwidth indicated by the network device is usually much larger than the bandwidth required for PDCCH reception. In order to further save the terminal The power consumption of the equipment needs to provide a more reasonable solution for determining the radio frequency bandwidth.

Contents of the invention

The embodiment of the present application provides a method, device, equipment and storage medium for determining the radio frequency bandwidth, and the technical solution is as follows:

According to one aspect of the present application, a method for determining a radio frequency bandwidth is provided, the method is performed by a terminal device, and the method includes:

determining a first operating bandwidth of the radio frequency component based on the CORESET configuration;

Adjust the working bandwidth of the radio frequency component to the first working bandwidth.

According to one aspect of the present application, a device for determining a radio frequency bandwidth is provided, the device comprising:

A determining module, configured to determine the first working bandwidth of the radio frequency component based on the CORESET configuration;

An adjustment module, configured to adjust the working bandwidth of the radio frequency component to the first working bandwidth.

According to one aspect of the present application, a terminal device is provided, and the wireless device includes: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; wherein, the The processor is configured to load and execute the executable instructions to implement the method for determining the radio frequency bandwidth as described in the above aspects.

According to one aspect of the present application, a computer-readable storage medium is provided, wherein executable instructions are stored in the computer-readable storage medium, and the executable instructions are loaded and executed by a processor to implement the above-mentioned aspects. Determination method of radio frequency bandwidth.

According to one aspect of the present application, there is provided a computer program product comprising computer instructions stored in a computer-readable storage medium from which a processor of a computer device reads The computer instruction is read, and the processor executes the computer instruction, so that the computer device executes to implement the method for determining the radio frequency bandwidth as described in the above aspect.

According to one aspect of the present application, a chip is provided, the chip includes a programmable logic circuit and/or program instructions, and is used to implement the method for determining the radio frequency bandwidth as described in the above aspect when the chip is running.

According to one aspect of the present application, a computer program is provided, the computer program includes computer instructions, and the processor of the computer device executes the computer instructions, so that the computer device executes the method for determining the radio frequency bandwidth as described in the above aspect .

The technical solutions provided by the embodiments of the present application at least include the following beneficial effects:

Support the terminal device to determine the first working bandwidth of the radio frequency component through CORESET configuration, so that the terminal device works on the actual required bandwidth, avoiding the waste of bandwidth and saving power consumption.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

FIG. 1 shows a schematic diagram of a radio frequency bandwidth determination system provided by some exemplary embodiments of the present application;

FIG. 2 shows a schematic flowchart of a method for determining a radio frequency bandwidth provided by some exemplary embodiments of the present application;

FIG. 3 shows a schematic flowchart of a method for determining a radio frequency bandwidth provided by some exemplary embodiments of the present application;

Fig. 4 shows a schematic diagram of a method for determining a radio frequency bandwidth provided by some exemplary embodiments of the present application;

Fig. 5 shows a schematic diagram of a method for determining a radio frequency bandwidth provided by some exemplary embodiments of the present application;

FIG. 6 shows a schematic diagram of a method for determining a radio frequency bandwidth provided by some exemplary embodiments of the present application;

FIG. 7 shows a structural block diagram of an apparatus for determining a radio frequency bandwidth provided by some exemplary embodiments of the present application;

Fig. 8 shows a schematic structural diagram of a terminal device provided by some exemplary embodiments of the present application.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings. Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only, and is not intended to limit the present disclosure. As used in this disclosure and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present disclosure, first information may also be called second information, and similarly, second information may also be called first information. Depending on the context, the word "if" as used herein may be interpreted as "at" or "when" or "in response to a determination."

If the terminal device has been working on a large bandwidth, but has no large uplink or downlink data transmission requirements, then the radio frequency bandwidth of the terminal device exceeds the actual required bandwidth most of the time. This not only wastes bandwidth, but also wastes power consumption of terminal equipment.

Therefore, the concept of Bandwidth Part (BWP) is proposed in related technologies, which supports network devices to instruct terminal devices to switch to BWPs with different configurations to perform business operations based on different service states of terminal devices. Different configurations mainly include bandwidth, frequency Different configurations for domain location etc. For example, the network device instructs the terminal device to switch from a BWP with a larger bandwidth to a BWP with a smaller bandwidth according to the service status of the terminal device, so that the radio frequency of the terminal device only needs to support a smaller frequency domain range. Such a technology can not only meet business requirements, but also achieve the effect of saving power consumption.

Generally speaking, a terminal device only needs to monitor a physical downlink control channel (Physical Downlink Control Channel, PDCCH) when there is no service. However, the BWP bandwidth configured by general network equipment is still too large compared to the bandwidth required for PDCCH reception. That is to say, in the case of no service, if the radio frequency of the terminal device is configured according to the bandwidth of the BWP, the radio frequency of the terminal device is still larger than the actual required bandwidth. Therefore, even if the network device indicates different configurations of BWP, there is still a scenario where the operating radio frequency bandwidth of the terminal device is greater than the actually required bandwidth, resulting in waste of bandwidth and power consumption.

Therefore, this application proposes a method for determining the radio frequency bandwidth, which supports further narrowing of the radio frequency bandwidth, thereby further reducing bandwidth waste and enabling terminal devices to save power consumption while meeting service requirements.

Fig. 1 shows a schematic diagram of a system for determining a radio frequency bandwidth provided by an exemplary embodiment of the present application. The system for determining the radio frequency bandwidth includes a network device 110 and a terminal device 120, which is not limited in this application.

The network device 110 in this application provides a wireless communication function, and the network device 110 includes but is not limited to: an evolved node B (Evolved Node B, eNB), a radio network controller (Radio Network Controller, RNC), a node B (Node B , NB), Base Station Controller (Base Station Controller, BSC), Base Transceiver Station (BaseTransceiver Station, BTS), Home Base Station (for example, Home Evolved Node B, or Home Node B, HNB), Baseband Unit (Baseband Unit, BBU ), wireless fidelity (Wireless Fidelity, Wi-Fi) system in the access point (Access Point, AP), wireless relay node, wireless backhaul node, transmission point (Transmission Point, TP) or sending and receiving point (Transmission and Reception Point, TRP), etc., can also be the next generation node B (Next Generation Node B, gNB) or transmission point (TRP or TP) in the fifth generation (5thGeneration, 5G) mobile communication system, or, for the 5G system One or a group (including multiple antenna panels) antenna panels of the base station in the base station, or it can also be a network node that constitutes a gNB or a transmission point, such as a baseband unit (BBU) or a distributed unit (Distributed Unit, DU), etc., Or the base station in the Beyond Fifth Generation (B5G), the sixth generation (6thGeneration, 6G) mobile communication system, etc., or the core network (Core Network, CN), Fronthaul (Fronthaul), Backhaul (Backhaul ), radio access network (Radio Access Network, RAN), network slicing, etc., or serving cell of terminal equipment, primary cell (Primary Cell, PCell), primary secondary cell (Primary Secondary Cell, PSCell), special cell (Special Cell, SpCell), secondary cell (Secondary Cell, SCell), neighboring cell, etc.

The terminal equipment 120 in this application, or user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless Communication device, user agent, user device. The terminal includes, but is not limited to: handheld devices, wearable devices, vehicle-mounted devices, and IoT devices, such as: mobile phones, tablet computers, e-book readers, laptop computers, desktop computers, TV sets, game consoles, mobile Internet Equipment (Mobile Internet Device, MID), augmented reality (Augmented Reality, AR) terminal, virtual reality (Virtual Reality, VR) terminal and mixed reality (Mixed Reality, MR) terminal, wearable devices, handles, electronic tags, controllers , wireless terminals in Industrial Control, wireless terminals in SelfDriving, wireless terminals in Remote Medical, wireless terminals in SmartGrid, and in Transportation Safety Wireless terminals in Smart City, wireless terminals in Smart Home, wireless terminals in Remote Medical Surgery, cellular phones, cordless phones, Session Initiation Protocol (Session Initiation Protocol, SIP) ) telephone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), TV Set Top Box (STB), Customer Premise Equipment (CPE), etc.

The network device 110 and the terminal device 120 communicate with each other through a certain air interface technology, such as a Uu interface.

Exemplarily, there are two communication scenarios between the network device 110 and the terminal device 120: an uplink communication scenario and a downlink communication scenario. Wherein, the uplink communication is to send signals to the network device 110 ; the downlink communication is to send signals to the terminal device 120 .

The technical solutions provided by the embodiments of this application can be applied to various communication systems, such as: Global System of Mobile communication (Global System of Mobile communication, GSM) system, Code Division Multiple Access (Code Division Multiple Access, CDMA) system, broadband code division multiple Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (Time Division Duplex, TDD) system, Advanced Long Term Evolution (LTE-A) system, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access, WiMAX) communication system, 5G mobile communication system, New Radio (NR) system, NR system evolution system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, unlicensed spectrum NR (NR-based access to unlicensed spectrum, NR-U) system, ground communication network (Terrestrial Networks, NTN) system, non-terrestrial network (Non-Terrestrial Networks, NTN) system, wireless local area network (Wireless Local Area Networks) , WLAN), wireless fidelity (Wireless Fidelity, Wi-Fi), cellular IoT system, cellular passive IoT system, can also be applied to the subsequent evolution system of 5G NR system, and can also be applied to B5G, 6G and subsequent evolution system. In some embodiments of the present application, "NR" may also be referred to as a 5G NR system or a 5G system. Wherein, the 5G mobile communication system may include non-standalone networking (Non-Standalone, NSA) and/or standalone networking (Standalone, SA).

The technical solutions provided in the embodiments of this application can also be applied to machine-type communication (Machine Type Communication, MTC), inter-machine communication long-term evolution technology (Long Term Evolution-Machine, LTE-M), device-to-device (Device to Device, D2D ) network, machine to machine (Machine to Machine, M2M) network, Internet of Things (Internet of Things, IoT) network or other networks. Wherein, the IoT network may include, for example, the Internet of Vehicles. Among them, the communication methods in the Internet of Vehicles system are collectively referred to as Vehicle to Other Devices (Vehicle to X, V2X, X can represent anything), for example, the V2X can include: Vehicle to Vehicle (Vehicle to Vehicle, V2V) communication, vehicle and Infrastructure (Vehicle to Infrastructure, V2I) communication, vehicle and pedestrian communication (Vehicle to Pedestrian, V2P) or vehicle and network (Vehicle to Network, V2N) communication, etc.

The radio frequency bandwidth determination system provided in this embodiment may be applied to but not limited to at least one of the following communication scenarios: uplink communication scenario, downlink communication scenario, and sidelink communication scenario.

It should be noted that in this application, the bandwidth used for the downlink channel, the bandwidth allocated to the downlink channel, the bandwidth used for downlink transmission, the bandwidth used for downlink data transmission, the bandwidth occupied by downlink transmission resources, etc. express the same or similar meaning. Similarly, the bandwidth used for the uplink channel, the bandwidth configured for the uplink channel, the bandwidth used for uplink transmission, the bandwidth used for uplink data transmission, the bandwidth occupied by uplink transmission resources, etc. express the same or similar meanings. Similarly, the bandwidth used for the side channel, the bandwidth allocated to the side channel, the bandwidth used for side transmission, the bandwidth used for side data transmission, the bandwidth occupied by side transmission resources, etc. express the same or similar meanings .

Fig. 2 shows a schematic flowchart of a method for determining a radio frequency bandwidth provided by some exemplary embodiments of the present application. Taking the method performed by the terminal device shown in Figure 1 as an example, the method includes at least some of the following steps:

Step 210: Determine the first working bandwidth of the radio frequency component based on the control resource set (Control Resource Set, CORESET) configuration;

A CORESET is a set of physical resources, and PDCCH is designed to be sent in a configurable CORESET. CORESET related parameters include at least one of the following:

Resource Element (ResourceElement, RE): RE consists of a sub-carrier (Sub-Carrier) in the frequency domain and an Orthogonal Frequency Division Multiplexing (OFDM) symbol in the time domain;

Resource Element Group (ResourceElementGroup, REG): One REG is equal to one Resource Block (ResourceBlock, RB), which consists of 12 REs in the frequency domain and one OFDM symbol in the time domain;

REG bundles (Bundles): consist of multiple REGs, whose size is determined by the Radio Resource Control (RRC) parameter reg-bundle-size;

Control Channel Element (CCE): consists of six REGs;

Aggregation Level: used to indicate the number of CCEs allocated for PDCCH.

Radio Frequency (RF) is the abbreviation of high-frequency alternating electromagnetic waves. The radio frequency bandwidth is the total bandwidth of the carrier set for transmission and reception. The radio frequency component is the component used for wireless signal transmission and reception in network equipment or terminal equipment.

The frequency domain bandwidth of the CORESET is less than or equal to the bandwidth of the BWP configured by the network device. The frequency domain bandwidth of the CORESET is the frequency domain bandwidth actually required for monitoring the PDCCH or receiving the PDCCH.

The terminal device determines the first working bandwidth of the radio frequency component based on parameters related to the frequency domain in the CORESET configuration.

Step 230: Adjust the working bandwidth of the radio frequency component to the first working bandwidth.

The terminal device adjusts the working bandwidth of its own radio frequency components to the first working bandwidth, which means that the radio frequency components will receive or send wireless signals within the bandwidth range corresponding to the first working bandwidth.

In summary, the method provided by this application supports the terminal device to determine the first working bandwidth of the radio frequency component through CORESET configuration, so that the terminal device can work on the actual required bandwidth, avoiding the waste of bandwidth and saving the power consumption of the terminal device .

Fig. 3 shows a schematic flowchart of a method for determining a radio frequency bandwidth provided by some exemplary embodiments of the present application. Taking the method performed by the terminal device shown in Figure 1 as an example, the method includes at least some of the following steps:

Step 310: Determine the first working bandwidth of the radio frequency component based on the CORESET configuration;

In some embodiments, the CORESET configuration includes the frequency domain bandwidth of the CORESET, and if the bandwidth of the currently activated BWP is greater than the frequency domain bandwidth of the CORESET, the first working bandwidth of the radio frequency component is determined based on the frequency domain bandwidth of the CORESET.

When adjusting the working bandwidth of radio frequency components, due to the existence of radio frequency retuning time (RF retuning time), it will have a certain impact on delay and business block error rate (Block Error Rate, BLER). The radio frequency reset time refers to the time required for the working bandwidth of the radio frequency component to adjust between two different working bandwidths, which is caused by the hardware performance of the radio frequency component and cannot be avoided.

In some embodiments, step 310 is performed without or without considering the influence of radio frequency retune time.

In some embodiments, considering or needing to consider the impact of radio frequency readjustment time, step 310 may be implemented as step 312 or step 314 (not shown in the figure). It can also be understood that the premise or requirement for performing step 310 is that the radio frequency readjustment time is not detrimental to the performance required by the service, then the configuration or capability of the network device, and/or the configuration or capability of the terminal device, need to meet the following conditions: 312 and/or the conditions described in step 314.

Step 312: When the minimum K0 value corresponding to the downlink control channel is greater than or equal to N, determine the first working bandwidth of the radio frequency component based on the CORESET configuration;

Wherein, the duration of the N time slots is greater than or equal to the radio frequency readjustment time, and N is a positive integer. The downlink control channel refers to PDCCH.

In some embodiments, step 312 is performed in a scenario in which the terminal device monitors the PDCCH, and/or in a scenario in which the terminal device is in a connected discontinuous reception (Connected Discontinuous Reception, CDRX).

The minimum K0 value corresponding to PDCCH is determined by at least one of the following methods:

· Configured by network devices;

·The terminal equipment reports to the network equipment.

Wherein, the minimum K0 value can be understood as the minimum slot interval between the time slot (slot) where the PDCCH is transmitted and the time slot where the scheduled data channel transmission is located. When K0=0, data channel transmission and corresponding PDCCH scheduling are same-slot scheduling. When the minimum K0 value is greater than or equal to 1, the data channel transmission and the corresponding PDCCH scheduling are cross-slot scheduling, that is, the two will be performed in different time slots, and the difference between the two corresponding time slots is the K0 value.

The data channel includes: a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH), and/or, a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH).

Exemplarily, as shown in FIG. 4, the terminal device is in a low power consumption scenario, and/or is in a scenario where only the PDCCH needs to be monitored, and/or is in a CDRX scenario, if the bandwidth of the currently activated BWP is greater than the frequency of the CORESET domain bandwidth, adjust the working bandwidth of the radio frequency components of the terminal equipment from the bandwidth of the currently activated BWP to the frequency domain bandwidth of the CORESET.

Considering the impact of radio frequency retune time, taking PDCCH as an example for scheduling downlink data services (i.e., scheduling PDSCH), if the radio frequency retune time is greater than the time from receiving DCI for scheduling PDSCH to actually scheduling PDSCH by the terminal equipment, then , during the process of adjusting the working bandwidth of the radio frequency component, the radio frequency related business cannot be carried out normally. For example, the radio frequency reset time is about 1-2ms, so the radio frequency components cannot receive or send wireless signals within this 1-2ms.

If the performance loss caused by the radio frequency readjustment time is unacceptable or negligible for the terminal equipment or the service carried by the terminal equipment, the influence of the radio frequency readjustment time needs to be excluded, and then the network equipment needs to support the minimum K0 value characteristics, and the minimum K0 value configured by the network device is greater than or equal to N, and the size of N depends on the value of the radio frequency readjustment time, that is, the duration of N time slots is greater than or equal to the radio frequency readjustment time, and N is a positive integer. In this way, between the time when the terminal device receives the DCI for scheduling the PDSCH and the time when the PDSCH is actually scheduled, there are at least N time slots available for adjusting the working bandwidth of the radio frequency component.

If the performance loss caused by the radio frequency readjustment time is acceptable or negligible for the terminal equipment or the services carried by the terminal equipment, then this solution has no additional requirements on the configuration or capability of the network equipment or the configuration or capability of the terminal equipment . That is, the nature and magnitude of the minimum K0 value need not be considered.

As shown in Figure 5, taking the minimum K0 value of 2 and the sub-carrier space (Sub-Carrier Space, SCS) as an example of 30KHz, assuming that the radio frequency retune time is less than 2ms, then N is 2. That is to say, the duration of the two time slots is greater than the minimum K0 value configured by the network device, so that the radio frequency readjustment time will not cause adverse performance impact on the terminal device or services carried by the terminal device.

In the case where the minimum K0 value is configured so that the radio frequency readjustment time will not cause adverse performance impact on the terminal device or the service carried by the terminal device, the radio frequency bandwidth self-adaptation can also be realized in the scenario where the PDCCH is used for a data channel. Specifically, it is necessary to combine the variance and change frequency of the frequency domain range scheduled by the network equipment, and use the radio frequency adjustment algorithm of the terminal device to achieve the optimal effect of radio frequency performance.

Exemplarily, step 312 is performed in a cell with a bandwidth of 100M. If the CORESET configuration location is at the edge of the cell bandwidth, the terminal device is not in the CDRX state, and after the terminal device resides in the cell, the network device does not schedule any services, the terminal device is in the connected state and only needs to monitor the PDCCH, and the detected RF power consumption is P1. If the CORESET configuration location is around the center frequency point of the cell, the terminal device is not in the CDRX state, the network device does not schedule any services, the terminal device is in the connected state and only needs to monitor the PDCCH, and the detected radio frequency power consumption is P2. It can be found that P1 is greater than P2. Wherein, the minimum K0 value corresponding to the PDCCH may be any minimum K0 value supported by the terminal equipment.

Step 314: When the minimum time interval is greater than or equal to the radio frequency readjustment time, determine the first working bandwidth of the radio frequency component based on the CORESET configuration;

Wherein, the minimum time interval is the time interval between the moment of receiving downlink control information (Downlink Control Information, DCI) and the start moment of the next CDRX duration period.

In some embodiments, step 314 is performed in a scenario where the terminal device receives a Wake Up Signal (WUS).

The minimum time interval is determined by at least one of the following:

· Configured by network devices;

·The terminal equipment reports to the network equipment.

Exemplarily, the terminal device is in the scenario of receiving the WUS. In the scenario where the terminal device receives WUS, if the terminal device has no business, it only needs to monitor DCI in a specific format, such as DCI 2_6, then the radio frequency bandwidth of the terminal device can meet the bandwidth required for monitoring DCI 2_6. As shown in FIG. 4 , the working bandwidth of the radio frequency component of the terminal device is adjusted from the bandwidth of the currently activated BWP to the frequency domain bandwidth of the CORESET.

In the scenario where the terminal device receives WUS, after receiving DCI 2_6, the terminal device does not initiate the service immediately, but waits for the start of the CDRX on Duration period (CDRX on Duration). Therefore, considering the influence of the radio frequency readjustment time, if the radio frequency readjustment time is less than or equal to the time interval between the moment of receiving DCI 2_6 and the start moment of the next CDRX duration period, then the radio frequency readjustment time will not make The terminal device or the service carried by the terminal device suffers performance loss.

If the performance loss caused by the radio frequency readjustment time is acceptable or negligible for the terminal equipment or the services carried by the terminal equipment, then this solution has no additional requirements on the configuration or capability of the network equipment or the configuration or capability of the terminal equipment , that is, there is no need to consider the size of the time interval between the moment of receiving DCI 2_6 and the start moment of the next CDRX duration period.

As shown in Figure 6, the time interval between the moment when the terminal device receives WUS and receives DCI 2_6 and the start moment of the next CDRX duration period is the minimum time interval value (MinTimeGap Value). The radio frequency readjustment time of the terminal device is less than the minimum time interval value, so that the radio frequency readjustment time will not cause adverse performance impact on the terminal device or services carried by the terminal device.

The value of the minimum time interval value is shown in Table 1.

Table 1 Minimum time interval value X

Step 330: Adjust the working bandwidth of the radio frequency component to the first working bandwidth;

The terminal device receives or sends wireless signals through the radio frequency component on the first working bandwidth.

Step 350: Monitor the downlink control channel in the first working bandwidth;

The terminal device monitors the PDCCH in the first working bandwidth, or the terminal device receives the PDCCH in the first working bandwidth.

Step 370: When the downlink control channel carries data channel scheduling information, adjust the working bandwidth of the radio frequency component from the first working bandwidth to the second working bandwidth.

Wherein, the second working bandwidth is greater than the first working bandwidth, and the second working bandwidth is determined by the frequency domain bandwidth of the scheduled data channel or by the bandwidth of the currently activated BWP.

That is, in the case that the PDCCH is used to schedule the PDSCH and/or the PUSCH, the working bandwidth of the radio frequency component is adjusted from the first working bandwidth to the second working bandwidth.

In summary, the method provided by this application supports the terminal device to determine the first working bandwidth of the radio frequency component through CORESET configuration, so that the terminal device can work on the actual required bandwidth, avoiding the waste of bandwidth and saving the power consumption of the terminal device .

Fig. 7 shows a structural block diagram of an apparatus for determining a radio frequency bandwidth provided by some exemplary embodiments of the present application. The device includes at least some of the following determination module 720, adjustment module 740, receiving module 760, and sending module 780:

A determining module 720, configured to determine the first operating bandwidth of the radio frequency component based on the CORESET configuration;

An adjustment module 740, configured to adjust the working bandwidth of the radio frequency component to the first working bandwidth.

In some embodiments, the CORESET configuration includes a frequency domain bandwidth of the CORESET;

The determining module 720 is configured to determine the first working bandwidth of the radio frequency component based on the frequency domain bandwidth of the CORESET when the bandwidth of the currently activated BWP is greater than the frequency domain bandwidth of the CORESET.

In some embodiments, the receiving module 760 is configured to monitor a downlink control channel in the first working bandwidth;

The determining module 720 is configured to adjust the working bandwidth of the radio frequency component from the first working bandwidth to a second working bandwidth when the downlink control channel carries data channel scheduling information;

Wherein, the second working bandwidth is greater than the first working bandwidth, and the second working bandwidth is determined by the frequency domain bandwidth of the scheduled data channel or by the bandwidth of the currently activated BWP.

In some embodiments, the determination module 720 is configured to determine the first working bandwidth of the radio frequency component based on the CORESET configuration when the minimum K0 value corresponding to the downlink control channel is greater than or equal to N ;

Wherein, the duration of the N time slots is greater than or equal to the radio frequency readjustment time, and N is a positive integer.

In some embodiments, the receiving module 760 is configured to monitor a downlink control channel, and/or, in a scenario of discontinuous reception of CDRX in a connected state.

In some embodiments, the minimum K0 value corresponding to the downlink control channel is determined by at least one of the following methods:

receiving the configuration of the network device by the receiving module 760;

The sending module 780 reports to the network device.

In some embodiments, the determining module 720 is configured to determine the first working bandwidth of the radio frequency component based on the CORESET configuration when the minimum time interval is greater than or equal to the radio frequency readjustment time;

Wherein, the minimum time interval is the time interval between the time when the downlink control information DCI is received and the start time of the next CDRX duration period.

In some embodiments, the receiving module 760 is receiving the wake-up signal WUS.

In some embodiments, the minimum time interval is determined by at least one of the following methods:

receiving the configuration of the network device by the receiving module 760;

The sending module 780 reports to the network device.

In some embodiments, the radio frequency readjustment time refers to the time required for the working bandwidth of the radio frequency component to be adjusted between two different working bandwidths.

To sum up, the device provided in this embodiment supports determining the first working bandwidth of the radio frequency component through CORESET configuration, so that the device works at the actually required bandwidth, avoiding waste of bandwidth and saving power consumption.

It should be noted that: the device provided by the above-mentioned embodiment is only illustrated by the division of the above-mentioned functional modules. In practical applications, the above-mentioned function distribution can be completed by different functional modules according to the needs, that is, the internal structure of the device is divided into Different functional modules to complete all or part of the functions described above.

Regarding the apparatus in this embodiment, the specific manner in which each module executes operations has been described in detail in the embodiment of the method, and will not be described in detail here.

FIG. 8 shows a schematic structural diagram of a terminal device provided by some exemplary embodiments of the present application. The terminal device 800 includes: a processor 801 , a receiver 802 , a transmitter 803 , a memory 804 and a bus 805 .

The processor 801 includes one or more processing cores, and the processor 801 executes various functional applications and information processing by running software programs and modules. In some embodiments, the processor 801 may be configured to implement the functions and steps of the determination module 720 and/or the adjustment module 740 described above.

The receiver 802 and the transmitter 803 can be realized as a communication component, and the communication component can be a communication chip. In some embodiments, the receiver 802 can be used to implement the functions and steps of the receiving module 760 as described above. In some embodiments, the transmitter 803 can be used to implement the functions and steps of the sending module 780 as described above.

The memory 804 is connected to the processor 801 through the bus 805 . The memory 804 may be used to store at least one instruction, and the processor 801 is used to execute the at least one instruction, so as to implement various steps in the foregoing method embodiments.

In addition, the memory 804 can be implemented by any type of volatile or non-volatile storage device or their combination, volatile or non-volatile storage devices include but not limited to: magnetic or optical disks, electrically erasable and programmable Electrically Erasable Programmable Read Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Static Random-Access Memory (SRAM), read-only Memory (Read-Only Memory, ROM), Magnetic Memory, Flash Memory, Programmable Read-Only Memory (Programmable Read-Only Memory, PROM).

In some embodiments, the receiver 802 independently receives the signal/data, or the processor 801 controls the receiver 802 to receive the signal/data, or the processor 801 requests the receiver 802 to receive the signal/data, or the processor 801 801 cooperates with receiver 802 to receive signals/data.

In some embodiments, the transmitter 803 sends the signal/data independently, or the processor 801 controls the transmitter 803 to send the signal/data, or the processor 801 requests the transmitter 803 to send the signal/data, or the processor 801 801 cooperates with transmitter 803 to send signals/data.

In an exemplary embodiment of the present application, a computer-readable storage medium is also provided, and at least one program is stored in the computer-readable storage medium, and the at least one program is loaded and executed by a processor, and the computer can The storage medium is read to implement the method for determining the radio frequency bandwidth provided by each method embodiment above.

In an exemplary embodiment of the present application, a chip is also provided, the chip includes a programmable logic circuit and/or program instructions, and when the chip is run on a communication device, it is used to implement the implementation of each of the above methods The method for determining the RF bandwidth provided by the example.

In an exemplary embodiment of the present application, a computer program product is also provided. When the computer program product is run on a processor of a computer device, the computer device is made to execute the above method for determining the radio frequency bandwidth.

In an exemplary embodiment of the present application, a computer program is also provided, the computer program includes computer instructions, and a processor of a computer device executes the computer instructions, so that the computer device executes the above method for determining the radio frequency bandwidth.

Those skilled in the art should be aware that, in the foregoing one or more examples, the functions described in the embodiments of the present application may be implemented by hardware, software, firmware or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The above are only optional embodiments of the application, and are not intended to limit the application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the application shall be included in the protection of the application. within range.

Claims (25)

1. A method for determining a radio frequency bandwidth, the method being performed by a terminal device, the method comprising:

determining a first operating bandwidth of the radio frequency component based on the CORESET configuration;

and adjusting the working bandwidth of the radio frequency component to the first working bandwidth.

2. The method of claim 1, wherein the CORESET configuration comprises a frequency domain bandwidth of CORESET;

the determining a first operating bandwidth of a radio frequency component based on a CORESET configuration includes:

determining the first operating bandwidth of the radio frequency component based on the frequency domain bandwidth of the CORESET in the case that the bandwidth of the currently active BWP is greater than the frequency domain bandwidth of the CORESET.

3. The method according to claim 1 or 2, characterized in that the method further comprises:

monitoring a downlink control channel in the first working bandwidth;

under the condition that the downlink control channel bears data channel scheduling information, adjusting the working bandwidth of the radio frequency assembly from the first working bandwidth to a second working bandwidth;

wherein the second operating bandwidth is greater than the first operating bandwidth, the second operating bandwidth being determined by a frequency domain bandwidth of the scheduled data channel or by a bandwidth of a currently active BWP.

4. The method of claim 3, wherein determining the first operating bandwidth of the radio frequency component based on the CORESET configuration comprises:

determining the first working bandwidth of the radio frequency component based on the CORESET configuration under the condition that the minimum K0 value corresponding to the downlink control channel is greater than or equal to N;

the duration of the N time slots is greater than or equal to the radio frequency readjustment time, and N is a positive integer.

5. The method according to claim 4, wherein the method is performed in a scenario of monitoring a downlink control channel and/or a scenario of Connected Discontinuous Reception (CDRX).

6. The method according to claim 4 or 5, wherein the minimum value of K0 corresponding to the downlink control channel is determined by at least one of:

configured by a network device;

and reporting to the network equipment by the terminal equipment.

7. The method of claim 3, wherein determining the first operating bandwidth of the radio frequency component based on the CORESET configuration comprises:

determining the first operating bandwidth of the radio frequency component based on the CORESET configuration if the minimum time interval is greater than or equal to a radio frequency retuning time;

wherein the minimum time interval is a time interval between a time when the downlink control information DCI is received and a starting time of a next CDRX duration.

8. The method of claim 7, wherein the method is performed in a scenario where a wake-up signal WUS is received.

9. The method according to claim 7 or 8, wherein the minimum time interval is determined by at least one of:

configured by a network device;

and reporting to the network equipment by the terminal equipment.

10. The method of any of claims 4 to 9, wherein the radio frequency retuning time is a time required for the operating bandwidth of the radio frequency component to be adjusted between two different operating bandwidths.

11. An apparatus for determining a radio frequency bandwidth, the apparatus comprising:

the determining module is used for determining a first working bandwidth of the radio frequency component based on the CORESET configuration;

and the adjusting module is used for adjusting the working bandwidth of the radio frequency component to the first working bandwidth.

12. The apparatus of claim 11, wherein the CORESET configuration comprises a frequency domain bandwidth of CORESET;

the determining module is configured to determine the first working bandwidth of the radio frequency component based on the frequency domain bandwidth of the CORESET when the bandwidth of the currently activated BWP is greater than the frequency domain bandwidth of the CORESET.

13. The apparatus of claim 11 or 12, further comprising:

a receiving module, configured to monitor a downlink control channel in the first working bandwidth;

the determining module is configured to adjust the working bandwidth of the radio frequency component from the first working bandwidth to a second working bandwidth when the downlink control channel carries data channel scheduling information;

wherein the second operating bandwidth is greater than the first operating bandwidth, the second operating bandwidth being determined by a frequency domain bandwidth of the scheduled data channel or by a bandwidth of a currently active BWP.

14. The apparatus of claim 13,

the determining module is configured to determine the first working bandwidth of the radio frequency component based on the CORESET configuration when a minimum K0 value corresponding to the downlink control channel is greater than or equal to N;

the duration of the N time slots is greater than or equal to the radio frequency readjustment time, and N is a positive integer.

15. The apparatus of claim 14, wherein the receiving module is configured to monitor a downlink control channel and/or in a scenario of discontinuous reception (CDRX) in a connected state.

16. The apparatus according to claim 14 or 15, wherein the minimum K0 value corresponding to the downlink control channel is determined by at least one of:

configured by a network device;

and reporting to the network equipment by the terminal equipment.

17. The apparatus of claim 13,

the determining module is configured to determine the first operating bandwidth of the radio frequency component based on the CORESET configuration when the minimum time interval is greater than or equal to a radio frequency retuning time;

wherein the minimum time interval is a time interval between a time when the downlink control information DCI is received and a starting time of a next CDRX duration.

18. The apparatus of claim 17, wherein the receiving module is configured to receive a wake up signal WUS.

19. The apparatus according to claim 17 or 18, wherein the minimum time interval is determined by at least one of:

configured by a network device;

and reporting to the network equipment by the terminal equipment.

20. The apparatus of any of claims 14 to 19, wherein the radio frequency retuning time is a time required for the operating bandwidth of the radio frequency component to adjust between two different operating bandwidths.

21. A terminal device, characterized in that the terminal device comprises:

a processor;

a transceiver coupled to the processor;

a memory for storing executable instructions of the processor;

wherein the processor is configured to load and execute the executable instructions to implement the method for determining a radio frequency bandwidth according to any one of claims 1 to 10.

22. A computer-readable storage medium having stored thereon executable instructions that are loaded and executed by a processor to implement the method for determining a radio frequency bandwidth according to any one of claims 1 to 10.

23. A chip comprising a programmable logic circuit or a program, said chip being adapted to implement the method for determining a radio frequency bandwidth according to any one of claims 1 to 10.

24. A computer program product comprising computer instructions stored in a computer-readable storage medium, the computer instructions being read from the computer-readable storage medium by a processor of a computer device, the computer instructions being executed by the processor to cause the computer device to perform the method for determining a radio frequency bandwidth according to any one of claims 1 to 10.

25. A computer program comprising computer instructions which, when executed by a processor of a computer device, cause the computer device to carry out the method for determining a radio frequency bandwidth according to any one of claims 1 to 10.

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