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

Abstract

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

Description

TECHNICAL FIELD

[0001] The present application relates to the field of mobile communication, and in particular to a method and apparatus for determining radio frequency bandwidth, a device, and a storage medium. BACKGROUND

[0002] In the related art, a network device supports instructing a terminal device to switch to a different configured bandwidth part (BWP) to perform a service operation based on a service state of the terminal device, so that the terminal device saves power consumption while meeting service requirements.

[0003] In the absence of services, the terminal device only needs to monitor a physical downlink control channel (PDCCH), however, the BWP bandwidth instructed by the network device is still much larger than the bandwidth required for PDCCH reception in normal cases, and to further save power consumption of the terminal device, a more reasonable scheme for determining radio frequency bandwidth needs to be provided. SUMMARY

[0004] Embodiments of the present application provide a method and apparatus for determining radio frequency bandwidth, a device, and a storage medium, and the technical solutions are as follows:

[0005] According to an aspect of the present application, a method for determining radio frequency bandwidth is provided, the method is executed by a terminal device, and the method comprises:

[0006] determining a first working bandwidth of a radio frequency component based on a CORESET configuration;

[0007] adjusting the working bandwidth of the radio frequency component to the first working bandwidth.

[0008] According to an aspect of the present application, a device for determining radio frequency bandwidth is provided, the device comprises:

[0009] a determination module configured to determine a first working bandwidth of a radio frequency component based on a CORESET configuration;

[0010] an adjustment module configured to adjust the working bandwidth of the radio frequency component to the first working bandwidth.

[0011] According to an aspect of the present application, a terminal device is provided, which comprises a processor, a transceiver connected to the processor, a memory for storing executable instructions of the processor, and wherein the processor is configured to load and execute the executable instructions to implement the method for determining radio frequency bandwidth as described in the above aspect.

[0012] According to an aspect of the present application, a computer readable storage medium is provided, which stores executable instructions, the executable instructions are loaded and executed by a processor to implement the method for determining radio frequency bandwidth according to the above aspect.

[0013] According to an aspect of the present application, a computer program product is provided, which comprises computer instructions stored in a computer readable storage medium, a processor of a computer device reads the computer instructions from the computer readable storage medium, and the processor executes the computer instructions to enable the computer device to implement the method for determining radio frequency bandwidth according to the above aspect.

[0014] According to an aspect of the present application, a chip is provided, which comprises programmable logic circuit and / or program instructions, and when the chip is running, the programmable logic circuit and / or program instructions are used to implement the method for determining radio frequency bandwidth according to the above aspect.

[0015] According to an aspect of the present application, a computer program is provided, which comprises computer instructions, and a processor of a computer device executes the computer instructions to enable the computer device to implement the method for determining radio frequency bandwidth according to the above aspect.

[0016] The technical solutions provided by the embodiments of the present application have at least the following beneficial effects:

[0017] The terminal device determines the first working bandwidth of the radio frequency component through the CORESET configuration, so that the terminal device works on the actually needed bandwidth, and the waste of bandwidth is avoided, and the power consumption is saved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 A schematic diagram of a radio frequency bandwidth determination system provided by some illustrative embodiments of the present application is shown;

[0020] Figure 2 A flowchart of a radio frequency bandwidth determination method provided by some illustrative embodiments of the present application is shown;

[0021] Figure 3 A flowchart of a radio frequency bandwidth determination method provided by some illustrative embodiments of the present application is shown;

[0022] Figure 4 FIG. 1 shows a schematic diagram of a method for determining a radio frequency bandwidth according to some example embodiments of the present application;

[0023] Figure 5 FIG. 1 shows a schematic diagram of a method for determining a radio frequency bandwidth according to some example embodiments of the present application;

[0024] Figure 6 FIG. 1 shows a schematic diagram of a method for determining a radio frequency bandwidth according to some example embodiments of the present application;

[0025] Figure 7 FIG. 2 shows a block diagram of a device for determining a radio frequency bandwidth according to some example embodiments of the present application;

[0026] Figure 8 FIG. 3 shows a schematic diagram of a terminal device according to some example embodiments of the present application. DETAILED DESCRIPTION

[0027] For the purpose of clarity, detailed descriptions of some example embodiments of the application are provided herein. It should be apparent that the description is illustrative only and is not intended to limit the scope of the application. Various examples of the application are described herein, including some that incorporate one or more of the features of the application. The detailed description includes specific details, however such details are to be understood by those skilled in the art along with the associated drawings as being illustrative of particular examples of the application.

[0028] The terminology used in the description of the disclosure herein is for the purpose of describing particular embodiments only and is not intended to limit the disclosure. As used in the description of the disclosure and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It also will be understood that the term “and / or” as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0029] It should be understood that, although the terms first, second, third, etc. can be used herein to describe various information, these terms are not intended to denote a particular order or hierarchy. These terms are used only to distinguish one from another. For example, a first information can be termed a second information, and, similarly, a second information can be termed a first information, without departing from the scope of the present disclosure. As used herein, the term “if’ can be construed to mean “when” or “in response to determining” or “in response to a determination” depending on the context.

[0030] If the terminal device always works on a larger bandwidth, but there is no larger uplink or downlink data transmission demand, the radio frequency bandwidth of the terminal device is larger than the actual required bandwidth size in most time. This not only causes the waste of bandwidth, but also causes the waste of power consumption of the terminal device.

[0031] Therefore, the concept of bandwidth part (BWP) is proposed in the related art, which supports the network device to instruct the terminal device to switch to a BWP with different configurations to perform service operation based on different service states of the terminal device. Different configurations mainly include different configurations in bandwidth, frequency domain position and the like. 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 state 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 the service demand, but also achieve the effect of saving power consumption.

[0032] Generally speaking, the terminal device only needs to monitor the physical downlink control channel (PDCCH) in the absence of service. However, the bandwidth of the BWP configured by the general network device is still too large compared with the bandwidth required for PDCCH reception. That is, in the absence of 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 instructs the BWP with different configurations, there is still a scenario that the radio frequency bandwidth of the terminal device is larger than the actual required bandwidth, causing the waste of bandwidth and power consumption.

[0033] Therefore, the present application proposes a method for determining radio frequency bandwidth, which supports further reducing the range of radio frequency bandwidth, thereby further reducing bandwidth waste and saving power consumption of the terminal device under the premise of meeting service demand.

[0034] Figure 1 A schematic diagram of a system for determining radio frequency bandwidth provided by an exemplary embodiment of the present application is shown. The system for determining radio frequency bandwidth includes a network device 110 and a terminal device 120, which are not limited by the present application.

[0035] The network device 110 in the present application provides wireless communication functions, which includes but is not limited to: an evolved node B (eNB), a radio network controller (RNC), a node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (for example, a home evolved node B or a home node B, HNB), a baseband unit (BBU), an access point (AP) in a wireless fidelity (Wi-Fi) system, a wireless relay node, a wireless backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc., and can also be a next generation node B (gNB) or a transmission point (TRP or TP) in a 5th generation (5G) mobile communication system, or an antenna panel or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB or a transmission point, such as a baseband unit (BBU) or a distributed unit (DU), etc., or a base station in a beyond 5th generation (B5G) or a 6th generation (6G) mobile communication system, or a core network (CN), a fronthaul, a backhaul, a radio access network (RAN), a network slice, etc., or a serving cell, a primary cell (PCell), a primary secondary cell (PSCell), a special cell (SpCell), a secondary cell (SCell), a neighboring cell, etc., of a terminal device.

[0036] The terminal device 120 in the present application, also known as user equipment (UE), access terminal, user unit, user 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 Internet of Things devices, etc., such as: mobile phones, tablet computers, e-book readers, laptop computers, desktop computers, televisions, game consoles, mobile Internet devices (MID), augmented reality (AR) terminals, virtual reality (VR) terminals and mixed reality (MR) terminals, wearable devices, handles, electronic tags, controllers, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, wireless terminals 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 (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDA), television set top boxes (STB), customer premise equipment (CPE), etc.

[0037] The network device 110 and the terminal device 120 communicate with each other through a certain air interface technology, such as Uu interface.

[0038] For example, there are two communication scenarios between the network device 110 and the terminal device 120: uplink communication scenario and downlink communication scenario. Among them, the uplink communication refers to sending signals to the network device 110; the downlink communication refers to sending signals to the terminal device 120.

[0039] The technical solutions provided by the embodiments in the present application can be applied to various communication systems, for example: a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a General Packet Radio Service (GPRS), a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, an Advanced Long Term Evolution (LTE-A) system, a Universal Mobile Telecommunication System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication system, a 5G mobile communication system, a New Radio (NR) system, an evolved system of the NR system, an LTE-based access to unlicensed spectrum (LTE-U) system, an NR-based access to unlicensed spectrum (NR-U) system, a Terrestrial Network (NTN) system, a Non-Terrestrial Network (NTN) system, a Wireless Local Area Networks (WLAN), a Wireless Fidelity (Wi-Fi), a cellular Internet of Things system, a cellular passive Internet of Things system, and can also be applicable to an evolved system of the 5G NR system, and can also be applicable to a B5G, a 6G and an evolved system thereafter. In some embodiments of the present application, the "NR" can also be referred to as a 5G NR system or a 5G system. Among them, the 5G mobile communication system can include a Non-Standalone (NSA) and / or a Standalone (SA).

[0040] The technical solutions provided by the embodiments in the present application can also be applied to Machine Type Communication (MTC), Long Term Evolution-Machine (LTE-M), Device to Device (D2D) network, Machine to Machine (M2M) network, Internet of Things (IoT) network or other networks. The IoT network may, for example, include a vehicle network. In the vehicle network system, the communication modes are collectively referred to as Vehicle to X (V2X, X can represent any object), for example, the V2X can include Vehicle to Vehicle (V2V) communication, Vehicle to Infrastructure (V2I) communication, Vehicle to Pedestrian (V2P) communication or Vehicle to Network (V2N) communication, etc.

[0041] The determination system of the radio frequency bandwidth provided by the embodiments can be applied to at least one of the following communication scenarios: uplink communication scenario, downlink communication scenario, sidelink communication scenario, but is not limited thereto.

[0042] It should be noted that in the present application, the bandwidth used for the downlink channel, the bandwidth configured for the downlink channel, the bandwidth used for the downlink transmission, the bandwidth used for the downlink data transmission, the bandwidth occupied by the downlink transmission resource, etc. have the same or similar meanings. Similarly, the bandwidth used for the uplink channel, the bandwidth configured for the uplink channel, the bandwidth used for the uplink transmission, the bandwidth used for the uplink data transmission, the bandwidth occupied by the uplink transmission resource, etc. have the same or similar meanings. Similarly, the bandwidth used for the sidelink channel, the bandwidth configured for the sidelink channel, the bandwidth used for the sidelink transmission, the bandwidth used for the sidelink data transmission, the bandwidth occupied by the sidelink transmission resource, etc. have the same or similar meanings.

[0043] Figure 2 A flowchart of a method for determining a radio frequency bandwidth provided by some example embodiments of the present application is shown. Taking the case where the method is executed by a terminal device as shown in Figure 1 The method includes at least some of the following steps:

[0044] Step 210: determining a first working bandwidth of a radio frequency component based on a control resource set (CORESET) configuration;

[0045] A CORESET is a set of physical resource elements, and a PDCCH is designed to be transmitted in a configurable CORESET. CORESET-related parameters include at least one of the following:

[0046] • Resource Element (RE): An RE is composed of one sub-carrier in the frequency domain and one Orthogonal Frequency Division Multiplexing (OFDM) symbol in the time domain;

[0047] • Resource Element Group (REG): An REG is equal to one Resource Block (RB), i.e., composed of 12 REs in the frequency domain and one OFDM symbol in the time domain;

[0048] • REG Bundles: Composed of multiple REGs, the size of which is determined by the Radio Resource Control (RRC) parameter reg-bundle-size;

[0049] • Control Channel Element (CCE): Composed of six REGs;

[0050] • Aggregation Level: Used to indicate the number of CCEs allocated for a PDCCH.

[0051] Radio Frequency (RF) refers to high-frequency alternating electromagnetic waves, and the RF bandwidth is the total bandwidth of a set of carriers for transmission and reception. An RF component is a component in a network device or terminal device used for wireless signal transmission and reception.

[0052] The frequency domain bandwidth of a CORESET is less than or equal to the bandwidth of a BWP configured by a network device. The frequency domain bandwidth of a CORESET is the actual frequency domain bandwidth required for monitoring a PDCCH or receiving a PDCCH.

[0053] A terminal device determines a first working bandwidth of an RF component based on frequency domain-related parameters in a CORESET configuration.

[0054] Step 230: Adjusting the working bandwidth of the RF component to the first working bandwidth.

[0055] Adjusting the working bandwidth of the RF component of the terminal device to the first working bandwidth means that the RF component will receive or transmit wireless signals within the bandwidth range corresponding to the first working bandwidth.

[0056] To sum up, the method provided by the application supports the terminal device to determine the first working bandwidth of the radio frequency component through the CORESET configuration, so that the terminal device works on the bandwidth actually needed, avoiding the waste of bandwidth and saving the power consumption of the terminal device.

[0057] Figure 3 A flowchart of a method for determining a radio frequency bandwidth provided by some example embodiments of the application is shown. Taking the terminal device shown in FIG. 1 as an example, the method includes at least part of the following steps: Figure 1

[0058] Step 310: determining the first working bandwidth of the radio frequency component based on the CORESET configuration;

[0059] In some embodiments, the CORESET configuration includes the frequency domain bandwidth of the CORESET, and in the case where 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.

[0060] When adjusting the working bandwidth of the radio frequency component, the time delay and the block error rate (BLER) will be affected due to the existence of the radio frequency retuning time (RF Retuning Time). The radio frequency retuning time refers to the time required for the working bandwidth of the radio frequency component to be adjusted between two different working bandwidths, which is caused by the hardware performance of the radio frequency component and cannot be avoided.

[0061] In some embodiments, the influence of the radio frequency retuning time is not considered or need not be considered when performing step 310.

[0062] In some embodiments, the influence of the radio frequency retuning time is considered or needs to be considered, and step 310 can be implemented as step 312 or step 314 (not shown in the figure). It can also be understood that the prerequisite or requirement for performing step 310 is that the radio frequency retuning time has no damage to the performance required by the service, and then the configuration or capability of the network device and / or the configuration or capability of the terminal device needs to meet the conditions as described in steps 312 and / or 314.

[0063] Step 312: determining the first working bandwidth of the radio frequency component based on the CORESET configuration in the case where the minimum K0 value corresponding to the downlink control channel is greater than or equal to N;

[0064] Wherein, the time length of N time slots is greater than or equal to the radio frequency retuning time, and N is a positive integer. The downlink control channel refers to the PDCCH.

[0065] ​In some embodiments, step 312 is performed in a scenario where the terminal device is listening to the PDCCH, and / or in a scenario where the terminal device is in a connected discontinuous reception (CDRX) state.

[0066] The minimum K0 value corresponding to PDCCH is determined by at least one of the following methods:

[0067] • Configured by network equipment;

[0068] • Reports are made from the terminal device to the network device.

[0069] The minimum K0 value can be understood as the minimum time slot interval between the time slot where the PDCCH transmission occurs and the time slot where the scheduled data channel transmission occurs. When K0 = 0, the data channel transmission and the corresponding PDCCH scheduling are simultaneous time 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-time slot scheduling, meaning they will occur in different time slots, and the time slot difference between the two is the K0 value.

[0070] The data channels include: Physical Downlink Shared Channel (PDSCH), and / or Physical Uplink Shared Channel (PUSCH).

[0071] For example, such as Figure 4 As shown, if the terminal device is in a low-power scenario, and / or, in a scenario where only PDCCH needs to be listened to, and / or in a CDRX scenario, and the bandwidth of the currently active BWP is greater than the frequency domain bandwidth of CORESET, then the operating bandwidth of the RF components of the terminal device will be adjusted from the bandwidth of the currently active BWP to the frequency domain bandwidth of CORESET.

[0072] Considering the impact of RF readjustment time, taking the PDCCH used for scheduling downlink data services (i.e., scheduling PDSCH) as an example, if the RF readjustment time is greater than the time from when the terminal device receives the DCI used for scheduling PDSCH to when it actually schedules PDSCH, then RF-related services cannot be performed normally during the adjustment of the RF component's operating bandwidth. For example, if the RF readjustment time is approximately 1-2 ms, then the RF component cannot receive or transmit wireless signals during these 1-2 ms.

[0073] If the performance loss caused by RF readjustment time is unacceptable or non-negligible for the terminal device or the services it carries, then the impact of RF readjustment time needs to be eliminated. In this case, the network device needs to support a minimum K0 value, and the minimum K0 value configured for the network device must be greater than or equal to N. The value of N depends on the value of the RF readjustment time; that is, the duration of N time slots is greater than or equal to the RF readjustment time, where N is a positive integer. This ensures that between the time the terminal device receives the DCI used for scheduling PDSCH and the actual time of PDSCH scheduling, at least N time slots are available to adjust the operating bandwidth of the RF components.

[0074] If the performance loss caused by RF readjustment time is acceptable or negligible for the terminal device or the services it carries, then this solution has no additional requirements for the configuration or capabilities of the network equipment or the terminal device. That is, there is no need to consider the characteristics and magnitude of the minimum K0 value.

[0075] like Figure 5 As shown, taking a minimum K0 value of 2 and a sub-carrier space (SCS) of 30kHz as an example, assuming the radio frequency readjustment 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 for the network device, so that the radio frequency readjustment time will not have an adverse performance impact on the terminal device or the services carried by the terminal device.

[0076] When the minimum K0 value is configured so that the RF readjustment time does not adversely affect the performance of the terminal device or the services it carries, PDCCH can also achieve RF bandwidth adaptation in data channel scenarios. Specifically, it is necessary to combine the variance of the frequency domain range of network device scheduling, the changing frequency, etc., and use the RF adjustment algorithm of the terminal device to achieve the optimal RF performance.

[0077] For example, 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 CDRX state. After the terminal device camps on the cell, the network device does not schedule any services, the terminal device is in connected state and only needs to listen to the PDCCH, and the detected RF power consumption is P1. If the CORESET configuration location is around the center frequency of the cell, the terminal device is not in CDRX state, the network device does not schedule any services, the terminal device is in connected state and only needs to listen to the PDCCH, and the detected RF power consumption is P2. It can be seen that P1 is greater than P2. Here, the minimum K0 value corresponding to the PDCCH can be any minimum K0 value supported by the terminal device.

[0078] Step 314: If the minimum time interval is greater than or equal to the RF readjustment time, determine the first operating bandwidth of the RF component based on the CORESET configuration;

[0079] The minimum time interval is the time interval between the moment when the downlink control information (DCI) is received and the start time of the next CDRX duration segment.

[0080] In some embodiments, step 314 is performed in a scenario where the terminal device receives a wake-up signal (WUS).

[0081] The minimum time interval is determined by at least one of the following methods:

[0082] • Configured by network equipment;

[0083] • Reports are made from the terminal device to the network device.

[0084] For example, consider a scenario where the terminal device is receiving WUS. In this scenario, if the terminal device has no service, it only needs to listen to a specific format of DCI, such as DCI 2_6. Therefore, the terminal device's RF bandwidth only needs to meet the bandwidth required for listening to DCI 2_6. Figure 4 As shown, the operating bandwidth of the RF components of the terminal device is adjusted from the bandwidth of the currently active BWP to the frequency domain bandwidth of CORESET.

[0085] In scenarios where a terminal device receives WUS, after receiving DCI 2_6, the terminal device does not immediately initiate a service but waits for the start of the CDRX on Duration. Therefore, considering the impact of RF readjustment time, if the RF readjustment time is less than or equal to the time interval between receiving DCI 2_6 and the start of the next CDRX on Duration, then the RF readjustment time will not cause performance loss to the terminal device or the services carried by the terminal device.

[0086] If the performance loss caused by the radio frequency readjustment time is acceptable or negligible for the terminal device or the service carried by the terminal device, then this solution has no additional requirements for the configuration or capability of the network device or the terminal device. 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 of the next CDRX duration segment.

[0087] like Figure 6As shown, the terminal device receives the WUS, and the time interval between the time point of receiving the DCI 2_6 and the starting time point of the next CDRX duration period is a minimum time interval value (MinTimeGap Value). The radio frequency retuning time of the terminal device is less than the minimum time interval value, so that the radio frequency retuning time will not cause adverse performance impact on the terminal device or the service carried by the terminal device.

[0088] The value of the minimum time interval value is shown in Table 1.

[0089] Table 1 Minimum time interval value X

[0090]

[0091]

[0092] Step 330: adjusting the working bandwidth of the radio frequency component to a first working bandwidth;

[0093] The terminal device receives or transmits wireless signals through the radio frequency component on the first working bandwidth.

[0094] Step 350: monitoring a downlink control channel in the first working bandwidth;

[0095] The terminal device monitors the PDCCH in the first working bandwidth, or the terminal device receives the PDCCH in the first working bandwidth.

[0096] Step 370: in the case that the downlink control channel carries data channel scheduling information, adjusting the working bandwidth of the radio frequency component from the first working bandwidth to a second working bandwidth.

[0097] 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.

[0098] 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.

[0099] In summary, the method provided by the present application supports the terminal device to determine the first working bandwidth of the radio frequency component through the CORESET configuration, so that the terminal device works on the actually needed bandwidth, avoiding the waste of bandwidth and saving the power consumption of the terminal device.

[0100] Figure 7 A structural block diagram of a radio frequency bandwidth determination apparatus provided by some example embodiments of the present application is shown. The apparatus includes at least part of the following determination module 720, adjustment module 740, receiving module 760, and sending module 780:

[0101] The determining module 720 is configured to determine a first working bandwidth of the radio frequency component based on the CORESET configuration.

[0102] The adjusting module 740 is configured to adjust the working bandwidth of the radio frequency component to the first working bandwidth.

[0103] In some embodiments, the CORESET configuration comprises a frequency domain bandwidth of the CORESET.

[0104] 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, in a case where the bandwidth of the currently activated BWP is greater than the frequency domain bandwidth of the CORESET.

[0105] In some embodiments, the receiving module 760 is configured to listen to a downlink control channel in the first working bandwidth.

[0106] 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, in a case where the downlink control channel carries data channel scheduling information.

[0107] The second working bandwidth is greater than the first working bandwidth, and the second working bandwidth is determined by a frequency domain bandwidth of a scheduled data channel or by a bandwidth of a currently activated BWP.

[0108] 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, in a case where a minimum K0 value corresponding to the downlink control channel is greater than or equal to N.

[0109] The length of N time slots is greater than or equal to a radio frequency retuning time, and N is a positive integer.

[0110] In some embodiments, the receiving module 760 is configured to listen to a downlink control channel, and / or in a scenario of a connected state discontinuous reception (CDRX).

[0111] In some embodiments, the minimum K0 value corresponding to the downlink control channel is determined by at least one of the following manners:

[0112] The receiving module 760 receives a configuration of a network device.

[0113] The sending module 780 reports the configuration of the network device.

[0114] In some embodiments, the determining module 720 is configured to determine the first operating bandwidth of the radio frequency component based on the CORESET configuration in a case that the minimum time interval is greater than or equal to a radio frequency retuning time.

[0115] The minimum time interval is a time interval between a time of receiving a downlink control information (DCI) and a start time of a next CDRX duration.

[0116] In some embodiments, the receiving module 760 receives a wake-up signal (WUS).

[0117] In some embodiments, the minimum time interval is determined by at least one of the following manners:

[0118] The receiving module 760 receives a configuration of a network device.

[0119] The sending module 780 reports to the network device.

[0120] In some embodiments, the radio frequency retuning time refers to a time required for adjusting an operating bandwidth of the radio frequency component between two different operating bandwidths.

[0121] In summary, the apparatus provided in the embodiments supports determining the first operating bandwidth of the radio frequency component through the CORESET configuration, so that the apparatus operates on an actually required bandwidth, avoiding waste of bandwidth and saving power consumption.

[0122] It should be noted that the apparatus provided in the above embodiments is only exemplified by the division of the above functional modules, and in actual applications, the above functions can be completed by different functional modules according to 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.

[0123] As to the apparatus in the embodiments, the specific manners in which various modules perform operations have been described in detail in the embodiments of the method, and will not be described in detail here.

[0124] Figure 8 A structure schematic diagram of a terminal device provided in some example embodiments of the present application is shown, and the terminal device 800 includes a processor 801, a receiver 802, a transmitter 803, a memory 804 and a bus 805.

[0125] The processor 801 includes one or more than one processing core, and the processor 801 performs various functional applications and information processing by running software programs and modules. In some embodiments, the processor 801 can be used to implement the functions and steps of the determining module 720 and / or the adjusting module 740.

[0126] The receiver 802 and the transmitter 803 can be implemented as a communication component, which can be a communication chip. In some embodiments, the receiver 802 can be configured to implement the functions and steps of the receiving module 760 described above. In some embodiments, the transmitter 803 can be configured to implement the functions and steps of the sending module 780 described above.

[0127] The memory 804 is connected to the processor 801 through the bus 805. The memory 804 can be configured to store at least one instruction, and the processor 801 is configured to execute the at least one instruction to implement the steps in the above method embodiments.

[0128] In addition, the memory 804 can be implemented by any type of volatile or non-volatile storage devices or a combination thereof, including but not limited to: a magnetic or optical disk, an Electrically Erasable Programmable Read Only Memory (EEPROM), an Erasable Programmable Read-Only Memory (EPROM), a Static Random-Access Memory (SRAM), a Read-Only Memory (ROM), a magnetic storage, a flash memory, a Programmable Read-Only Memory (PROM).

[0129] In some embodiments, the receiver 802 receives signals / data independently, or the processor 801 controls the receiver 802 to receive signals / data, or the processor 801 requests the receiver 802 to receive signals / data, or the processor 801 cooperates with the receiver 802 to receive signals / data.

[0130] In some embodiments, the transmitter 803 transmits signals / data independently, or the processor 801 controls the transmitter 803 to transmit signals / data, or the processor 801 requests the transmitter 803 to transmit signals / data, or the processor 801 cooperates with the transmitter 803 to transmit signals / data.

[0131] In an example embodiment of the present application, a computer readable storage medium is also provided, and the computer readable storage medium stores at least one program, which is loaded and executed by a processor, and the computer readable storage medium is configured to implement the method for determining a radio frequency bandwidth provided by the above method embodiments.

[0132] In an example embodiment of the present application, a chip is also provided, which includes programmable logic circuit and / or program instructions, and when the chip is running on a communication device, is used to implement the method for determining radio frequency bandwidth provided by each of the method embodiments.

[0133] In an example embodiment of the present application, a computer program product is also provided, which, when running on a processor of a computer device, causes the computer device to perform the method for determining radio frequency bandwidth.

[0134] In an example embodiment of the present application, a computer program is also provided, which includes computer instructions, and when a processor of a computer device executes the computer instructions, causes the computer device to perform the method for determining radio frequency bandwidth.

[0135] Those skilled in the art should be aware that, in one or more of the examples described above, the functions described by the embodiments of the present application can be implemented in hardware, software, firmware or any combination thereof. When implemented in software, the functions can be stored in a computer readable medium or transmitted as one or more instructions or code on a computer readable medium. The computer readable medium includes computer storage medium and communication medium, and the communication medium includes any medium that facilitates the transfer of computer program from one place to another. The storage medium can be any available medium that can be accessed by a general or special purpose computer.

[0136] The above description is only optional embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for determining radio frequency bandwidth, characterized in that, The method is executed by a terminal device, and the method includes: The first operating bandwidth of the radio frequency component is determined based on the CORESET configuration; the radio frequency component is a component in a network device or terminal device used for wireless signal transmission and reception. Adjust the operating bandwidth of the radio frequency component to the first operating bandwidth; Listen to the downlink control channel within the first operating bandwidth; When the downlink control channel carries data channel scheduling information, the operating bandwidth of the radio frequency component is adjusted from the first operating bandwidth to the second operating bandwidth; the second operating bandwidth is greater than the first operating bandwidth, and the second operating bandwidth is determined by the frequency domain bandwidth of the scheduled data channel; If the method is executed in a scenario of monitoring the downlink control channel and a scenario of connected-mode discontinuous CDRX reception, the step of determining the first operating bandwidth of the radio frequency component based on the CORESET configuration includes: When the minimum K0 value corresponding to the downlink control channel is greater than or equal to N, the first operating bandwidth of the radio frequency component is determined based on the CORESET configuration, the duration of the N time slots is greater than or equal to the radio frequency readjustment time, and N is a positive integer; If the method is executed in a scenario where a wake-up signal WUS is received, the step of determining the first operating bandwidth of the radio frequency component based on the CORESET configuration includes: When the minimum time interval is greater than or equal to the radio frequency readjustment time, the first operating bandwidth of the radio frequency component is determined based on the CORESET configuration; the minimum time interval is the time interval between the moment of receiving downlink control information (DCI) and the start time of the next CDRX duration segment. If the terminal device is in a state of no service, the DCI is in a specific format, and the first operating bandwidth meets the bandwidth required to listen to the DCI in the specific format. The minimum K0 value and the minimum time interval are configured by the network device and / or reported by the terminal device to the network device.

2. The method according to claim 1, characterized in that, The CORESET configuration includes the frequency domain bandwidth of the CORESET; The determination of the first operating bandwidth of the radio frequency component based on the CORESET configuration includes: If the bandwidth of the currently activated BWP is greater than the frequency domain bandwidth of the CORESET, the first operating bandwidth of the RF component is determined based on the frequency domain bandwidth of the CORESET.

3. The method according to claim 1, characterized in that, The method further includes: Listen to the downlink control channel within the first operating bandwidth; When the downlink control channel carries data channel scheduling information, the operating bandwidth of the radio frequency component is adjusted from the first operating bandwidth to the second operating bandwidth; The second working bandwidth is greater than the first working bandwidth, and the second working bandwidth is determined by the bandwidth of the currently active BWP.

4. The method according to claim 1, characterized in that, The radio frequency readjustment time refers to the time required for the operating bandwidth of the radio frequency component to adjust between two different operating bandwidths.

5. A device for determining radio frequency bandwidth, characterized in that, The device includes: A determination module is used to determine the first operating bandwidth of a radio frequency component based on the CORESET configuration; the radio frequency component is a component in a network device or terminal device used for wireless signal transmission and reception. An adjustment module is used to adjust the operating bandwidth of the radio frequency component to the first operating bandwidth; The terminal device listens to the downlink control channel within the first operating bandwidth; The adjustment module is further configured to adjust the operating bandwidth of the radio frequency component from the first operating bandwidth to the second operating bandwidth when the downlink control channel carries data channel scheduling information; the second operating bandwidth is greater than the first operating bandwidth, and the second operating bandwidth is determined by the frequency domain bandwidth of the scheduled data channel; If the device is used in scenarios involving monitoring the downlink control channel and in scenarios involving discontinuous CDRX reception in connected mode, the determining module is further configured to: When the minimum K0 value corresponding to the downlink control channel is greater than or equal to N, the first operating bandwidth of the radio frequency component is determined based on the CORESET configuration, the duration of the N time slots is greater than or equal to the radio frequency readjustment time, and N is a positive integer; If the device is used in a scenario where a wake-up signal WUS is received, the determining module is further configured to: When the minimum time interval is greater than or equal to the radio frequency readjustment time, the first working bandwidth of the radio frequency component is determined based on the CORESET configuration. The minimum time interval is the time interval between the moment of receiving downlink control information (DCI) and the start time of the next CDRX duration. If the terminal device is in a state of no service, the DCI is in a specific format, and the first working bandwidth meets the bandwidth required to listen to the DCI in the specific format. The minimum K0 value and the minimum time interval are configured by the network device and / or reported by the terminal device to the network device.

6. The apparatus according to claim 5, characterized in that, The CORESET configuration includes the frequency domain bandwidth of the CORESET; The determining module is used to determine the first operating 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.

7. The apparatus according to claim 5, characterized in that, The device further includes: A receiving module is used to monitor the downlink control channel within the first operating bandwidth; The determining module is used to adjust the operating bandwidth of the radio frequency component from the first operating bandwidth to the second operating bandwidth when the downlink control channel carries data channel scheduling information; The second working bandwidth is greater than the first working bandwidth, and the second working bandwidth is determined by the bandwidth of the currently active BWP.

8. The apparatus according to claim 5, characterized in that, The radio frequency readjustment time refers to the time required for the operating bandwidth of the radio frequency component to adjust between two different operating bandwidths.

9. A terminal device, characterized in that, The terminal device includes: processor; A transceiver connected to the processor; Memory for storing the executable instructions of the processor; The processor is configured to load and execute the executable instructions to implement the method for determining the radio frequency bandwidth as described in any one of claims 1 to 4.

10. A computer-readable storage medium, characterized in that, The readable storage medium stores executable instructions, which are loaded and executed by a processor to implement the method for determining radio frequency bandwidth as described in any one of claims 1 to 4.

11. A chip, characterized in that, The chip includes a programmable logic circuit or a program, and the chip is used to implement the method for determining the radio frequency bandwidth as described in any one of claims 1 to 4.

12. A computer program product, characterized in that, The computer program product includes computer instructions stored in a computer-readable storage medium, a processor of a computer device reading the computer instructions from the computer-readable storage medium, and the processor executing the computer instructions to cause the computer device to perform the method for determining the radio frequency bandwidth as described in any one of claims 1 to 4.

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