Method, device, communication equipment and storage medium for switching BWP

Abstract

The disclosed embodiments provide a method for switching a bandwidth part (BWP), wherein the method is executed by a terminal; the method includes determining a switching method for switching a bandwidth part (BWP); wherein the switching methods include: a first switching method for switching a downlink BWP or an uplink BWP; and a second switching method for switching a downlink BWP and an uplink BWP. Compared to using a single switching method for BWP switching, the disclosed embodiments provide more flexible BWP switching and ensure that the frequency spacing between the uplink BWP and the downlink BWP meets communication requirements, allowing the terminal to transmit and receive data simultaneously, thereby improving the reliability of wireless communications.

Description

Technical Field

[0001] The present disclosure relates to the field of wireless communication technology but is not limited to the field of wireless communication technology, and in particular to a method, apparatus, communication device, and storage medium for switching a BWP. Background Art

[0002] As networks continue to evolve, a new type of terminal, Reduced Capability (Redcap) terminals, has been introduced. These terminals differ from standard terminals, such as enhanced Mobile Broadband (eMBB) terminals. They typically need to meet the following requirements: 1. Low cost and complexity; 2. A certain degree of coverage enhancement; and 3. Power conservation.

[0003] In related technologies, for RedCap terminals, bandwidth is reduced, and when switching between partial bandwidths (BWPs), the center frequency may shift. This can cause the BWP frequency spacing to fail to meet relevant requirements, making it impossible to simultaneously receive and transmit data, and making wireless communication unreliable. Summary of the Invention

[0004] The embodiments of the present disclosure disclose a method, apparatus, communication device, and storage medium for switching a BWP.

[0005] According to a first aspect of an embodiment of the present disclosure, a method for switching a BWP is provided, wherein the method is performed by a terminal and includes:

[0006] Determine the switching mode of the switching bandwidth part BWP;

[0007] The switching modes include: a first switching mode, switching the downlink BWP or the uplink BWP; and a second switching mode, switching the downlink BWP and the uplink BWP.

[0008] In one embodiment, determining the switching mode of the switching bandwidth part BWP includes:

[0009] Determining a switching mode for switching the BWP according to a predetermined condition;

[0010] Among them, the predetermined conditions include: the interval between the reference frequency of the target uplink BWP for performing BWP switching based on the first switching mode and the reference frequency of the activated downlink BWP is within a threshold range; or, the interval between the reference frequency of the target downlink BWP for performing BWP switching based on the first switching mode and the reference frequency of the activated uplink BWP is within a threshold range.

[0011] In one embodiment, determining the switching mode of the switching bandwidth part BWP according to a predetermined condition includes:

[0012] In response to the predetermined condition being met, switching the BWP based on the first switching manner;

[0013] or,

[0014] In response to the predetermined condition not being satisfied, switching the BWP based on the second switching manner;

[0015] After the BWP is switched, the interval between the center frequency of the downlink BWP and the center frequency of the uplink BWP is within a threshold range.

[0016] In one embodiment, the method further comprises:

[0017] In response to determining that the interval between the first lower limit frequency point of the target downlink BWP for performing handover based on the first handover mode and the second upper limit frequency point of the activated uplink BWP is greater than or equal to a first predetermined value, and / or determining that the interval between the first upper limit frequency point of the target downlink BWP for performing handover based on the first handover mode and the second lower limit frequency point of the activated uplink BWP is less than or equal to a second predetermined value, determining that the predetermined condition is satisfied;

[0018] The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

[0019] In one embodiment, the method further comprises:

[0020] In response to determining that the interval between the second upper limit frequency point of the target uplink BWP for performing handover based on the first handover mode and the first lower limit frequency point of the activated downlink BWP is greater than or equal to a first predetermined value, and / or determining that the interval between the second lower limit frequency point of the target uplink BWP for performing handover based on the first handover mode and the first upper limit frequency point of the activated downlink BWP is less than or equal to a second predetermined value, determining that the predetermined condition is satisfied;

[0021] The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

[0022] In one embodiment, the interval between the reference frequency point of the downlink BWP and the reference frequency point of the uplink BWP configured with the same BWP identifier is a predetermined interval.

[0023] In one embodiment, the method further comprises:

[0024] In response to switching the BWP based on the second switching mode, switching is performed based on the second switching mode to an uplink BWP and a downlink BWP having the same BWP identifier.

[0025] In one embodiment, the method further comprises:

[0026] In response to switching the BWP based on the second switching mode, switching to a target uplink BWP and a target downlink BWP based on the second switching mode;

[0027] Among them, the interval between the first lower limit frequency point of the target downlink BWP and the second upper limit frequency point of the target uplink BWP is greater than or equal to a first predetermined value, and / or the interval between the second upper limit frequency point of the target downlink BWP and the first upper limit frequency point of the target uplink BWP is less than or equal to a second predetermined value.

[0028] According to a second aspect of an embodiment of the present disclosure, a method for switching a BWP is provided, wherein the method is performed by a base station and includes:

[0029] Determine the switching mode of the switching bandwidth part BWP;

[0030] The switching mode includes: a first switching mode, switching downlink BWP or uplink BWP; a second switching mode, switching downlink BWP and uplink BWP;

[0031] Sending information indicating the switching mode to the terminal.

[0032] In one embodiment, determining the switching mode of the switching bandwidth part BWP includes:

[0033] Determining a switching mode for switching the BWP according to a predetermined condition;

[0034] Among them, the predetermined conditions include: the interval between the reference frequency of the target uplink BWP for performing BWP switching based on the first switching mode and the reference frequency of the activated downlink BWP is within a threshold range; or, the interval between the reference frequency of the target downlink BWP for performing BWP switching based on the first switching mode and the reference frequency of the activated uplink BWP is within a threshold range.

[0035] In one embodiment, determining the switching mode of the switching bandwidth part BWP according to a predetermined condition includes:

[0036] In response to the predetermined condition being met, switching the BWP based on the first switching manner;

[0037] or,

[0038] In response to the predetermined condition not being satisfied, switching the BWP based on the second switching manner;

[0039] After the BWP is switched, the interval between the center frequency of the downlink BWP and the center frequency of the uplink BWP is within a threshold range.

[0040] In one embodiment, the method further comprises:

[0041] In response to determining that the interval between the first lower limit frequency point of the target downlink BWP for performing handover based on the first handover mode and the second upper limit frequency point of the activated uplink BWP is greater than or equal to a first predetermined value, and / or determining that the interval between the first upper limit frequency point of the target downlink BWP for performing handover based on the first handover mode and the second lower limit frequency point of the activated uplink BWP is less than or equal to a second predetermined value, determining that the predetermined condition is satisfied;

[0042] The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

[0043] In one embodiment, the method further comprises:

[0044] In response to determining that the interval between the second upper limit frequency point of the target uplink BWP for performing handover based on the first handover mode and the first lower limit frequency point of the activated downlink BWP is greater than or equal to a first predetermined value, and / or determining that the interval between the second lower limit frequency point of the target uplink BWP for performing handover based on the first handover mode and the first upper limit frequency point of the activated downlink BWP is less than or equal to a second predetermined value, determining that the predetermined condition is satisfied;

[0045] The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

[0046] In one embodiment, the interval between the reference frequency point of the downlink BWP and the reference frequency point of the uplink BWP configured with the same BWP identifier is a predetermined interval.

[0047] In one embodiment, the method further comprises:

[0048] In response to switching the BWP based on the second switching mode, switching is performed based on the second switching mode to an uplink BWP and a downlink BWP having the same BWP identifier.

[0049] In one embodiment, the method further comprises:

[0050] In response to switching the BWP based on the second switching mode, switching to a target uplink BWP and a target downlink BWP based on the second switching mode;

[0051] Among them, the interval between the first lower limit frequency point of the target downlink BWP and the second upper limit frequency point of the target uplink BWP is greater than or equal to a first predetermined value, and / or the interval between the second upper limit frequency point of the target downlink BWP and the first upper limit frequency point of the target uplink BWP is less than or equal to a second predetermined value.

[0052] According to a third aspect of an embodiment of the present disclosure, a device for switching a BWP is provided, wherein the device includes:

[0053] A processing module, configured to determine a switching mode of the switching bandwidth part BWP;

[0054] The switching modes include: a first switching mode, switching the downlink BWP or the uplink BWP; and a second switching mode, switching the downlink BWP and the uplink BWP.

[0055] In one embodiment, the processing module is configured to: determine a switching mode for switching the BWP according to a predetermined condition;

[0056] Among them, the predetermined conditions include: the interval between the reference frequency of the target uplink BWP for performing BWP switching based on the first switching mode and the reference frequency of the activated downlink BWP is within a threshold range; or, the interval between the reference frequency of the target downlink BWP for performing BWP switching based on the first switching mode and the reference frequency of the activated uplink BWP is within a threshold range.

[0057] In one embodiment, the processing module is further configured to

[0058] In response to the predetermined condition being met, switching the BWP based on the first switching manner;

[0059] or,

[0060] In response to the predetermined condition not being satisfied, switching the BWP based on the second switching manner;

[0061] After the BWP is switched, the interval between the center frequency of the downlink BWP and the center frequency of the uplink BWP is within a threshold range.

[0062] In one embodiment, the processing module is further configured to:

[0063] In response to determining that the interval between the first lower limit frequency point of the target downlink BWP for performing handover based on the first handover mode and the second upper limit frequency point of the activated uplink BWP is greater than or equal to a first predetermined value, and / or determining that the interval between the first upper limit frequency point of the target downlink BWP for performing handover based on the first handover mode and the second lower limit frequency point of the activated uplink BWP is less than or equal to a second predetermined value, determining that the predetermined condition is satisfied;

[0064] The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

[0065] In one embodiment, the processing module is further configured to:

[0066] In response to determining that the interval between the second upper limit frequency point of the target uplink BWP for performing handover based on the first handover mode and the first lower limit frequency point of the activated downlink BWP is greater than or equal to a first predetermined value, and / or determining that the interval between the second lower limit frequency point of the target uplink BWP for performing handover based on the first handover mode and the first upper limit frequency point of the activated downlink BWP is less than or equal to a second predetermined value, determining that the predetermined condition is satisfied;

[0067] The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

[0068] In one embodiment, the processing module is further configured to: set the interval between the reference frequency point of the downlink BWP and the reference frequency point of the uplink BWP with the same BWP identifier to be a predetermined interval.

[0069] In one embodiment, the processing module is further configured to:

[0070] In response to switching the BWP based on the second switching mode, switching is performed based on the second switching mode to an uplink BWP and a downlink BWP having the same BWP identifier.

[0071] In one embodiment, the processing module is further configured to:

[0072] In response to switching the BWP based on the second switching mode, switching to a target uplink BWP and a target downlink BWP based on the second switching mode;

[0073] Among them, the interval between the first lower limit frequency point of the target downlink BWP and the second upper limit frequency point of the target uplink BWP is greater than or equal to a first predetermined value, and / or the interval between the second upper limit frequency point of the target downlink BWP and the first upper limit frequency point of the target uplink BWP is less than or equal to a second predetermined value.

[0074] According to a fourth aspect of an embodiment of the present disclosure, a device for switching a BWP is provided, wherein the device includes:

[0075] A processing module, configured to determine a switching mode of the switching bandwidth part BWP;

[0076] The switching mode includes: a first switching mode, switching downlink BWP or uplink BWP; a second switching mode, switching downlink BWP and uplink BWP;

[0077] The sending module is used to send information indicating the switching mode to the terminal.

[0078] In one embodiment, the processing module is further configured to:

[0079] Determining a switching mode for switching the BWP according to a predetermined condition;

[0080] Among them, the predetermined conditions include: the interval between the reference frequency of the target uplink BWP for performing BWP switching based on the first switching mode and the reference frequency of the activated downlink BWP is within a threshold range; or, the interval between the reference frequency of the target downlink BWP for performing BWP switching based on the first switching mode and the reference frequency of the activated uplink BWP is within a threshold range.

[0081] In one embodiment, the processing module is further configured to:

[0082] In response to the predetermined condition being met, switching the BWP based on the first switching manner;

[0083] or,

[0084] In response to the predetermined condition not being satisfied, switching the BWP based on the second switching manner;

[0085] After the BWP is switched, the interval between the center frequency of the downlink BWP and the center frequency of the uplink BWP is within a threshold range.

[0086] In one embodiment, the processing module is further configured to:

[0087] In response to determining that the interval between the first lower limit frequency point of the target downlink BWP for performing handover based on the first handover mode and the second upper limit frequency point of the activated uplink BWP is greater than or equal to a first predetermined value, and / or determining that the interval between the first upper limit frequency point of the target downlink BWP for performing handover based on the first handover mode and the second lower limit frequency point of the activated uplink BWP is less than or equal to a second predetermined value, determining that the predetermined condition is satisfied;

[0088] The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

[0089] In one embodiment, the processing module is further configured to:

[0090] In response to determining that the interval between the second upper limit frequency point of the target uplink BWP for performing handover based on the first handover mode and the first lower limit frequency point of the activated downlink BWP is greater than or equal to a first predetermined value, and / or determining that the interval between the second lower limit frequency point of the target uplink BWP for performing handover based on the first handover mode and the first upper limit frequency point of the activated downlink BWP is less than or equal to a second predetermined value, determining that the predetermined condition is satisfied;

[0091] The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

[0092] In one embodiment, the processing module is further configured to: set the interval between the reference frequency point of the downlink BWP and the reference frequency point of the uplink BWP with the same BWP identifier to be a predetermined interval.

[0093] In one embodiment, the processing module is further configured to:

[0094] In response to switching the BWP based on the second switching mode, switching is performed based on the second switching mode to an uplink BWP and a downlink BWP having the same BWP identifier.

[0095] In one embodiment, the processing module is further configured to:

[0096] In response to switching the BWP based on the second switching mode, switching to a target uplink BWP and a target downlink BWP based on the second switching mode;

[0097] Among them, the interval between the first lower limit frequency point of the target downlink BWP and the second upper limit frequency point of the target uplink BWP is greater than or equal to a first predetermined value, and / or the interval between the second upper limit frequency point of the target downlink BWP and the first upper limit frequency point of the target uplink BWP is less than or equal to a second predetermined value.

[0098] According to a fifth aspect of an embodiment of the present disclosure, a communication device is provided, the communication device including:

[0099] processor;

[0100] a memory for storing instructions executable by the processor;

[0101] The processor is configured to implement the method described in any embodiment of the present disclosure when running the executable instructions.

[0102] According to a sixth aspect of an embodiment of the present disclosure, a computer storage medium is provided, wherein the computer storage medium stores a computer executable program, and when the executable program is executed by a processor, the method described in any embodiment of the present disclosure is implemented.

[0103] In an embodiment of the present disclosure, a switching method for switching a bandwidth portion (BWP) is determined; the switching methods include: a first switching method for switching a downlink BWP or an uplink BWP; and a second switching method for switching a downlink BWP and an uplink BWP. Here, whether to switch the BWP using the first or second switching method can be determined. Compared to using a single switching method for BWP switching, BWP switching is more flexible and can ensure that the frequency spacing between the uplink BWP and the downlink BWP meets communication requirements, allowing terminals to transmit and receive data simultaneously, thereby improving the reliability of wireless communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0104] Figure 1 The figure is a schematic structural diagram of a wireless communication system according to an exemplary embodiment.

[0105] Figure 2 FIG. 4 is a schematic diagram showing a frequency interval of a BWP according to an exemplary embodiment.

[0106] Figure 3 FIG. 4 is a schematic diagram showing a frequency interval of a BWP according to an exemplary embodiment.

[0107] Figure 4 The figure is a flowchart showing a method for switching a BWP according to an exemplary embodiment.

[0108] Figure 5 FIG. 4 is a schematic diagram showing a frequency interval of a BWP according to an exemplary embodiment.

[0109] Figure 6 FIG. 4 is a schematic diagram showing a frequency interval of a BWP according to an exemplary embodiment.

[0110] Figure 7 FIG. 4 is a schematic diagram showing a frequency interval of a BWP according to an exemplary embodiment.

[0111] Figure 8 FIG. 4 is a schematic diagram showing a frequency interval of a BWP according to an exemplary embodiment.

[0112] Figure 9 FIG. 4 is a schematic diagram showing a frequency interval of a BWP according to an exemplary embodiment.

[0113] Figure 10 FIG. 4 is a schematic diagram showing a frequency interval of a BWP according to an exemplary embodiment.

[0114] Figure 11 The figure is a flowchart showing a method for switching a BWP according to an exemplary embodiment.

[0115] Figure 12 The figure is a flowchart showing a method for switching a BWP according to an exemplary embodiment.

[0116] Figure 13 The figure is a flowchart showing a method for switching a BWP according to an exemplary embodiment.

[0117] Figure 14 The figure is a flowchart showing a method for switching a BWP according to an exemplary embodiment.

[0118] Figure 15 The figure is a flowchart showing a method for switching a BWP according to an exemplary embodiment.

[0119] Figure 16 It is a structural diagram showing a device for switching BWP according to an exemplary embodiment.

[0120] Figure 17 It is a structural diagram of a device for switching BWP according to an exemplary embodiment.

[0121] Figure 18 The figure is a schematic structural diagram of a terminal according to an exemplary embodiment.

[0122] Figure 19 It is a block diagram of a base station according to an exemplary embodiment. DETAILED DESCRIPTION

[0123] Exemplary embodiments are described in detail herein, with examples illustrated in the accompanying drawings. When the following description refers to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with certain aspects of the present disclosure.

[0124] The terms used in the embodiments of the present disclosure are for the purpose of describing specific embodiments only and are not intended to limit the embodiments of the present disclosure. The singular forms "a," "an," and "the" used in the embodiments of the present disclosure are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0125] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0126] For the purpose of brevity and ease of understanding, the terms "greater than" or "less than" are used herein to describe magnitude relationships. However, those skilled in the art will understand that the term "greater than" also encompasses the meaning of "greater than or equal to," and "less than" also encompasses the meaning of "less than or equal to."

[0127] Please refer to Figure 1 , which shows a schematic structural diagram of a wireless communication system provided by an embodiment of the present disclosure. Figure 1 As shown, the wireless communication system is a communication system based on mobile communication technology, and the wireless communication system may include: several user equipments 110 and several base stations 120.

[0128] The user equipment 110 may refer to a device that provides voice and / or data connectivity to a user. The user equipment 110 may communicate with one or more core networks via a radio access network (RAN). The user equipment 110 may be an Internet of Things user device, such as a sensor device, a mobile phone, and a computer with an Internet of Things user device. For example, the user equipment 110 may be a fixed, portable, pocket-sized, handheld, computer-built-in, or vehicle-mounted device. For example, a station (STA), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote user device, an access terminal, a user terminal, a user agent, a user device, or user equipment. Alternatively, the user equipment 110 may be a device of an unmanned aerial vehicle. Alternatively, the user equipment 110 may be an in-vehicle device, such as a vehicle-mounted computer with wireless communication capabilities, or a wireless user device connected to an external vehicle-mounted computer. Alternatively, the user equipment 110 may also be a roadside device, for example, a street lamp, a traffic light, or other roadside device with a wireless communication function.

[0129] The base station 120 may be a network-side device in a wireless communication system. The wireless communication system may be a fourth-generation mobile communication technology (4G) system, also known as a long-term evolution (LTE) system; or, the wireless communication system may be a 5G system, also known as a new air interface system or a 5G NR system. Alternatively, the wireless communication system may be a next-generation system of the 5G system. The access network in the 5G system may be referred to as a New Generation-Radio Access Network (NG-RAN).

[0130] Among them, the base station 120 can be an evolved base station (eNB) adopted in a 4G system. Alternatively, the base station 120 can also be a base station (gNB) adopting a centralized distributed architecture in a 5G system. When the base station 120 adopts a centralized distributed architecture, it usually includes a centralized unit (CU) and at least two distributed units (DU). The centralized unit is provided with a protocol stack of a packet data convergence protocol (PDCP) layer, a radio link layer control protocol (RLC) layer, and a media access control (MAC) layer; the distributed unit is provided with a physical (PHY) layer protocol stack. The embodiment of the present disclosure does not limit the specific implementation method of the base station 120.

[0131] A wireless connection can be established between the base station 120 and the user equipment 110 via a wireless air interface. In various implementations, the wireless air interface is a wireless air interface based on the fourth generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface; or, the wireless air interface can also be a wireless air interface based on the next generation mobile communication network technology standard of 5G.

[0132] In some embodiments, E2E (End to End) connections may also be established between user devices 110, such as in scenarios such as V2V (vehicle to vehicle) communication, V2I (vehicle to infrastructure) communication, and V2P (vehicle to pedestrian) communication in vehicle-to-everything (V2X) communication.

[0133] Here, the above user equipment can be considered as the terminal equipment in the following embodiments.

[0134] In some embodiments, the wireless communication system may further include a network management device 130 .

[0135] Several base stations 120 are respectively connected to a network management device 130. The network management device 130 may be a core network device in a wireless communication system. For example, the network management device 130 may be a mobility management entity (MME) in an evolved packet core (EPC). Alternatively, the network management device may be other core network devices, such as a serving gateway (SGW), a public data network gateway (PGW), a policy and charging rules function (PCRF), or a home subscriber server (HSS). The embodiments of the present disclosure do not limit the implementation form of the network management device 130.

[0136] To facilitate understanding by those skilled in the art, the embodiments of the present disclosure list multiple implementation methods to clearly illustrate the technical solutions of the embodiments of the present disclosure. Of course, those skilled in the art will understand that the multiple embodiments provided in the embodiments of the present disclosure can be implemented individually, or can be implemented together with the methods of other embodiments in the embodiments of the present disclosure, or can be implemented together with some methods in other related technologies individually or in combination; the embodiments of the present disclosure do not limit this.

[0137] In order to better understand the technical solutions described in any embodiment of the present disclosure, first, the application scenarios in the relevant technologies are described:

[0138] In the New Radio (NR) system, the maximum bandwidth of a common terminal in the frequency range FR1 can reach 100 MHz, and the maximum bandwidth in the frequency range FR2 is up to 400 MHz.

[0139] In some embodiments, the center frequency interval between downlink reception and uplink transmission in the frequency range FR1 frequency division duplexing (FDD) band must meet the conditions in Table 1.

[0140] Table 1: Frequency intervals between sending and receiving of terminals

[0141]

[0142]

[0143] In one embodiment, see Figure 2The maximum bandwidth of ordinary terminals in the frequency range FR1 can reach 100MHz, and the channel bandwidth on the terminal side can be as large as the system bandwidth. Therefore, in the FDD system, the downlink DL BWP and the uplink UL BWP are switched independently, and it can still be ensured that the interval between the center frequencies of the switched BWPs meets the relevant requirements.

[0144] But see Figure 3 For RedCap terminals, the maximum bandwidth is limited to 20 MHz. As the terminal bandwidth decreases, switching the BWP bandwidth will cause the center frequency of the transmission and reception to switch. If the downlink BWP is allowed to switch arbitrarily within the system bandwidth, the interval between the terminal's transmission and reception points will not meet the required transmission and reception interval. When the transmission and reception interval does not meet the required interval, data cannot be sent and received simultaneously.

[0145] like Figure 4 As shown, this embodiment provides a method for switching BWP, wherein the method includes:

[0146] Step 41: Determine the switching mode of the switching bandwidth part BWP;

[0147] The switching modes include: a first switching mode, switching the downlink BWP or the uplink BWP; and a second switching mode, switching the downlink BWP and the uplink BWP.

[0148] In one embodiment, determining the switching mode of the switching bandwidth part BWP includes:

[0149] Determining a switching mode for switching the BWP according to a predetermined condition;

[0150] Among them, the predetermined conditions include: the interval between the reference frequency of the target uplink BWP for performing BWP switching based on the first switching mode and the reference frequency of the activated downlink BWP is within a threshold range; or, the interval between the reference frequency of the target downlink BWP for performing BWP switching based on the first switching mode and the reference frequency of the activated uplink BWP is within a threshold range.

[0151] It should be noted that the threshold range can be a predetermined numerical range. For example, the threshold range can be a predetermined numerical range greater than a predetermined value, or a range greater than a first predetermined value and less than a second predetermined value, which is not limited here. To better understand the threshold range, the following two examples are used for illustration:

[0152] For example, the required minimum value of the interval between the uplink BWP and the downlink BWP is a, and the threshold range may be: X≥a. Here, if the interval is within the threshold range, then the interval ≥a.

[0153] For example, the required minimum value of the interval between the uplink BWP and the downlink BWP is a, and the threshold range may be: a≤X≤b. Here, if the interval is within the threshold range, then a≤interval≤b.

[0154] Here, the method for switching the BWP described in any embodiment of the present disclosure can be executed by a terminal, but is not limited to being executed by the terminal. It can also be executed by a base station or other network communication node in the core network, and is not limited here. It should be noted that the indication of the terminal as the execution subject in the present disclosure does not limit the technical solution of the present disclosure.

[0155] In one embodiment, the method is performed by a terminal. Exemplarily, the terminal determines a switching mode for switching a bandwidth part (BWP); wherein the switching mode includes: a first switching mode for switching a downlink BWP or an uplink BWP; and a second switching mode for switching a downlink BWP and an uplink BWP. The terminal sends information indicating the switching mode to a base station. The base station receives the information indicating the switching mode sent by the terminal. The base station performs BWP switching based on the switching mode indicated by the switching mode information.

[0156] In one embodiment, the method is performed by a base station. Exemplarily, the base station determines a switching mode for switching a bandwidth part (BWP); wherein the switching mode includes: a first switching mode for switching a downlink BWP or an uplink BWP; and a second switching mode for switching a downlink BWP and an uplink BWP. The base station sends information indicating the switching mode to a terminal. The terminal receives the information indicating the switching mode sent by the base station. The terminal performs BWP switching based on the switching mode indicated by the switching mode information.

[0157] Here, the terminal involved in the present disclosure may be, but is not limited to, a mobile phone, a wearable device, a vehicle-mounted terminal, a road side unit (RSU), a smart home terminal, an industrial sensor device and / or a medical device, etc. In some embodiments, the terminal may be a Redcap terminal or a predetermined version of a new air interface NR terminal (for example, an R17 NR terminal).

[0158] The base station referred to in this disclosure may be an access device for a terminal to access a network. Here, the base station may be a base station of various types, for example, a base station of a third generation mobile communication (3G) network, a base station of a fourth generation mobile communication (4G) network, a base station of a fifth generation mobile communication (5G) network, or other evolved base stations.

[0159] In one embodiment, a terminal is currently operating in an activated uplink BWP and an activated downlink BWP and requires uplink BWP switching. If the interval between the reference frequency of the target uplink BWP for BWP switching based on a first switching method and the reference frequency of the activated downlink BWP is within a threshold range, the BWP switching method is determined to be the first switching method, and BWP switching is performed based on the first switching method. Exemplarily, performing BWP switching based on the first switching method may involve switching only the uplink BWP, i.e., switching the uplink BWP to the target uplink BWP, while not switching the downlink BWP. Here, switching only the uplink BWP may also be understood as performing independent switching of the uplink BWP.

[0160] In one embodiment, a terminal is currently operating in an activated uplink BWP and an activated downlink BWP and requires uplink BWP switching. If the interval between the reference frequency of the target uplink BWP for BWP switching based on the first switching mode and the reference frequency of the activated downlink BWP is not within a threshold range, the BWP switching mode is determined to be the second mode, and BWP switching is performed based on the second mode. Exemplarily, performing BWP switching based on the second mode may include switching the uplink BWP and the downlink BWP, i.e., switching the uplink BWP to the target uplink BWP and switching the downlink BWP to the target downlink BWP. Here, switching the uplink BWP and the downlink BWP can be understood as performing synchronous switching of the uplink BWP and the downlink BWP.

[0161] In one embodiment, a terminal is currently operating in an activated uplink BWP and an activated downlink BWP and requires downlink BWP switching. If the interval between the reference frequency of the target downlink BWP for BWP switching based on a first switching method and the reference frequency of the activated uplink BWP is within a threshold range, the BWP switching method is determined to be the first switching method, and BWP switching is performed based on the first switching method. Exemplarily, performing BWP switching based on the first switching method may involve switching only the downlink BWP, i.e., switching the downlink BWP to the target downlink BWP, while not switching the uplink BWP. Switching only the downlink BWP can also be understood as performing independent switching of the downlink BWP.

[0162] In one embodiment, a terminal is currently operating in an activated uplink BWP and an activated downlink BWP and requires downlink BWP switching. If the interval between the reference frequency of the target downlink BWP for BWP switching based on the first switching mode and the reference frequency of the activated uplink BWP is not within a threshold range, the BWP switching mode is determined to be the second mode, and BWP switching is performed based on the second mode. Exemplarily, performing BWP switching based on the second mode may include switching the uplink BWP and the downlink BWP, i.e., switching the uplink BWP to the target uplink BWP and switching the downlink BWP to the target downlink BWP. Here, switching the uplink BWP and the downlink BWP can be understood as performing synchronous switching of the uplink BWP and the downlink BWP.

[0163] In one embodiment, the configured downlink BWP and uplink BWP with the same BWP identification ID meet the preset interval requirement for sending and receiving data. Here, meeting the preset interval requirement for sending and receiving data can be that the interval between the center frequency point of the downlink BWP and the center frequency point of the uplink BWP is a predetermined interval. For example, the predetermined interval is Fs. See Figure 5 The interval between the center frequency of BWP1 in the uplink BWP and the center frequency of BWP1 in the downlink BWP is Fs; the interval between the center frequency of BWP2 in the uplink BWP and the center frequency of BWP2 in the downlink BWP is Fs; the interval between the center frequency of BWP3 in the uplink BWP and the center frequency of BWP3 in the downlink BWP is Fs; the interval between the center frequency of BWP4 in the uplink BWP and the center frequency of BWP4 in the downlink BWP is Fs.

[0164] In one embodiment, in response to a predetermined condition not being met, a second switching mode is determined for the switching bandwidth portion BWP; when the terminal receives downlink scheduling downlink control information (DCI), simultaneous switching of the downlink BWP and the uplink BWP is performed based on the second mode. In one embodiment, the BWP identifiers of the target downlink BWP and the target uplink BWP to be switched are the same. That is, after the switching is completed, the BWP identifiers of the activated target downlink BWP and the activated uplink BWP are the same.

[0165] In one embodiment, in response to a predetermined condition not being met, the switching mode for the handover bandwidth portion (BWP) is determined to be a second mode. Upon receiving an uplink scheduling DCI, the terminal performs simultaneous handover of the downlink BWP and the uplink BWP based on the second mode. In one embodiment, the target downlink BWP and the target uplink BWP to be handed over have the same BWP identifier. That is, after the handover is completed, the activated target downlink BWP and the activated uplink BWP have the same BWP identifier.

[0166] In one embodiment, in response to a predetermined condition not being met, determining that a switching mode for switching the bandwidth portion BWP is a second mode; when the terminal receives downlink scheduling downlink control information (DCI), performing simultaneous switching of the downlink BWP and the uplink BWP based on the second mode. In one embodiment, in response to switching the BWP based on the second switching mode, switching to a target uplink BWP and a target downlink BWP based on the second switching mode; wherein the interval between a first lower limit frequency point of the target downlink BWP and a second upper limit frequency point of the target uplink BWP is greater than or equal to a first predetermined value, and / or the interval between the second upper limit frequency point of the target downlink BWP and the first upper limit frequency point of the target uplink BWP is less than or equal to a second predetermined value.

[0167] In one embodiment, in response to a predetermined condition being met, the switching mode of the switching bandwidth part BWP is determined to be a first switching mode; when the terminal receives a downlink scheduling DCI, the downlink BWP is switched based on the first switching mode and the uplink BWP is not switched.

[0168] In one embodiment, in response to a predetermined condition being met, the switching mode of the switching bandwidth part BWP is determined to be a first switching mode; when the terminal receives an uplink scheduling DCI, the downlink BWP is not switched based on the first switching mode and the uplink BWP is switched.

[0169] In one embodiment, the reference frequency of the target uplink BWP for performing BWP switching based on the first switching mode may be the center frequency of the target uplink BWP. The reference frequency of the activated downlink BWP may be the center frequency of the activated downlink BWP.

[0170] In one embodiment, the reference frequency of the target downlink BWP for performing BWP switching based on the first switching mode may be the center frequency of the target downlink BWP. The reference frequency of the activated uplink BWP may be the center frequency of the activated uplink BWP. In one embodiment, the terminal currently uses an uplink BWP and a downlink BWP. If it is triggered to switch the uplink BWP, this is the scenario of switching the current uplink BWP. For the scenario where the current uplink BWP needs to be switched, the uplink BWP to be switched to is the target uplink BWP. Please refer to Figure 6 The reference frequency of the target uplink BWP for performing BWP switching based on the first switching mode may include the second upper limit frequency of the BWP and the second lower limit frequency of the BWP, where the second upper limit frequency may be the highest frequency of the BWP, and the second lower limit frequency may be the lowest frequency of the BWP; the reference frequency of the activated downlink BWP may include the first upper limit frequency and the first lower limit frequency of the BWP, where the first upper limit frequency may be the highest frequency of the BWP, and the first lower limit frequency may be the lowest frequency of the BWP.

[0171] For example, for the scenario where the current uplink BWP needs to be switched, see Figure 6 Under a predetermined bandwidth, the preset transmit and receive interval is Fs MHz (Tx-Rx separation), and the terminal's channel bandwidth is BW. If the interval between the first lower frequency limit and the second upper frequency limit is greater than X1, where X1 = Fs - BW; and / or the interval between the first upper frequency limit and the second lower frequency limit is less than X2, where X2 = Fs + BW, then the predetermined condition is met.

[0172] In one embodiment, the terminal currently uses an uplink BWP and a downlink BWP. If it is triggered to switch the downlink BWP, this is the scenario of switching the current downlink BWP. For the scenario where the current downlink BWP needs to be switched, the downlink BWP to be switched to is the target downlink BWP. Figure 6 The reference frequency of the target downlink BWP for performing BWP switching based on the first switching mode may include the second upper limit frequency of the BWP and the second lower limit frequency of the BWP, where the second upper limit frequency may be the highest frequency of the BWP, and the second lower limit frequency may be the lowest frequency of the BWP; the reference frequency of the activated uplink BWP may include the first upper limit frequency and the first lower limit frequency of the BWP, where the first upper limit frequency may be the highest frequency of the BWP, and the first lower limit frequency may be the lowest frequency of the BWP.

[0173] For example, for the scenario where the current downlink BWP needs to be switched, see Figure 6 Under a predetermined bandwidth, the preset transmit and receive interval is Fs MHz (Tx-Rx separation), and the terminal's channel bandwidth is BW. If the interval between the first lower frequency limit and the second upper frequency limit is greater than X1, where X3 = Fs - BW; and / or the interval between the first upper frequency limit and the second lower frequency limit is less than X4, where X4 = Fs + BW, then the predetermined condition is met.

[0174] In one embodiment, see Figure 7 In response to determining that the BWP switching mode is the first switching mode, when the downlink BWP is switched to the target downlink BWP, the uplink BWP is kept unchanged.

[0175] In one embodiment, see Figure 8 In response to determining that the BWP switching mode is the first switching mode, when the uplink BWP is switched to the target uplink BWP, the downlink BWP is kept unchanged.

[0176] In one embodiment, see Figure 9In response to determining that the BWP switching mode is the second mode, when the downlink BWP is switched to the target downlink BWP, the uplink BWP needs to be switched simultaneously. For example, under the predetermined bandwidth, the interval between the center frequencies of the target downlink BWP and the target uplink BWP is Fs MHz.

[0177] In one embodiment, see Figure 10 In response to determining that the BWP switching mode is the second mode, the interval between the lowest frequency point of the target downlink BWP and the highest frequency point of the target uplink BWP is greater than X3, where X3 = Fs-BW; and / or the interval between the highest frequency point of the target downlink BWP and the lowest frequency point of the target uplink BWP is less than X4, where X4 = Fs+BW.

[0178] In the disclosed embodiment, a switching method for switching the bandwidth portion (BWP) is determined based on predetermined conditions. The switching methods include: a first switching method for switching the downlink BWP or the uplink BWP; and a second switching method for switching the downlink BWP and the uplink BWP. Whether to switch the BWP using the first or second switching method is determined based on the predetermined conditions. Compared to using a single switching method for BWP switching, BWP switching is more flexible and ensures that the frequency spacing between the uplink and downlink BWPs meets communication requirements, allowing terminals to transmit and receive data simultaneously, thereby improving wireless communication reliability.

[0179] It should be noted that those skilled in the art will understand that the method provided in the embodiments of the present disclosure may be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0180] like Figure 11 As shown, this embodiment provides a method for switching BWP, wherein the method includes:

[0181] Step 111: In response to a predetermined condition being met, switching the BWP based on a first switching mode;

[0182] or,

[0183] In response to a predetermined condition not being satisfied, switching the BWP based on a second switching manner;

[0184] After the BWP is switched, the interval between the center frequency of the downlink BWP and the center frequency of the uplink BWP is within a threshold range.

[0185] In one embodiment, a switching mode for switching the bandwidth portion (BWP) is determined based on a predetermined condition. The switching modes include: a first switching mode for switching the downlink BWP or the uplink BWP; and a second switching mode for switching the downlink BWP and the uplink BWP. In response to the predetermined condition being met, the BWP is switched based on the first switching mode; or, in response to the predetermined condition not being met, the BWP is switched based on the second switching mode.

[0186] In one embodiment, the predetermined conditions include: the interval between the reference frequency of the target uplink BWP for performing BWP switching based on the first switching mode and the reference frequency of the activated downlink BWP is within a threshold range; or, the interval between the reference frequency of the target downlink BWP for performing BWP switching based on the first switching mode and the reference frequency of the activated uplink BWP is within a threshold range.

[0187] In one embodiment, the terminal currently operates in an activated uplink BWP and an activated downlink BWP and needs to perform uplink BWP switching; in response to the interval between the reference frequency point of the target uplink BWP for performing BWP switching based on the first switching method and the reference frequency point of the activated downlink BWP being within a threshold range, it is determined that the predetermined condition is met; and the BWP is switched based on the first switching method.

[0188] In one embodiment, the terminal currently operates in an activated uplink BWP and an activated downlink BWP and needs to perform downlink BWP switching; in response to the interval between the reference frequency of the target downlink BWP for performing BWP switching based on the first switching method and the reference frequency of the activated uplink BWP being within a threshold range, it is determined that the predetermined condition is met; and the BWP is switched based on the first switching method.

[0189] In one embodiment, the terminal currently operates in an activated uplink BWP and an activated downlink BWP and needs to perform uplink BWP switching; in response to the interval between the reference frequency point of the target uplink BWP for performing BWP switching based on the first switching method and the reference frequency point of the activated downlink BWP being not within a threshold range, it is determined that the predetermined condition is not met; and the BWP is switched based on the second switching method.

[0190] In one embodiment, the terminal is currently operating in an activated uplink BWP and an activated downlink BWP and needs to perform downlink BWP switching; in response to the interval between the reference frequency of the target downlink BWP for performing BWP switching based on the first switching method and the reference frequency of the activated uplink BWP being not within a threshold range, it is determined that the predetermined condition is not met; and the BWP is switched based on the second switching method.

[0191] In one embodiment, the reference frequency point may be a frequency point determined based on the center frequency point; the threshold range may be a range determined based on a predetermined range. For example, the reference frequency point may be the center frequency point, and the threshold range may be the predetermined range.

[0192] It should be noted that those skilled in the art will understand that the method provided in the embodiments of the present disclosure may be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0193] like Figure 12 As shown, this embodiment provides a method for switching BWP, wherein the method includes:

[0194] Step 121: In response to determining that the interval between the first lower limit frequency point of the target downlink BWP for handover performed based on the first handover mode and the second upper limit frequency point of the activated uplink BWP is greater than or equal to a first predetermined value, and / or determining that the interval between the first upper limit frequency point of the target downlink BWP for handover performed based on the first handover mode and the second lower limit frequency point of the activated uplink BWP is less than or equal to a second predetermined value, determining that the predetermined condition is satisfied;

[0195] The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

[0196] It should be noted that this embodiment may be applied to a scenario where the downlink BWP position is configured after the uplink BWP position.

[0197] In one embodiment, the terminal currently uses an uplink BWP and a downlink BWP. If it is triggered to switch the downlink BWP, this is the scenario of switching the current downlink BWP. For the scenario where the current downlink BWP needs to be switched, the downlink BWP to be switched to is the target downlink BWP. Figure 6 The reference frequency of the target downlink BWP for performing BWP switching based on the first switching mode may include the second upper limit frequency of the BWP and the second lower limit frequency of the BWP, where the second upper limit frequency may be the highest frequency of the BWP, and the second lower limit frequency may be the lowest frequency of the BWP; the reference frequency of the activated uplink BWP may include the first upper limit frequency and the first lower limit frequency of the BWP, where the first upper limit frequency may be the highest frequency of the BWP, and the first lower limit frequency may be the lowest frequency of the BWP.

[0198] For example, see again Figure 6Under a predetermined bandwidth, the preset interval between transmitting and receiving data is Fs MHz (Tx-Rx separation), and the terminal's channel bandwidth is BW. If the interval between the first lower frequency limit and the second upper frequency limit is greater than or equal to X1, where X3 = Fs - BW; and / or the interval between the first upper frequency limit and the second lower frequency limit is less than or equal to X4, where X4 = Fs + BW, then the predetermined condition is satisfied. In response to the predetermined condition being satisfied, the BWP is switched based on the first switching method.

[0199] It should be noted that, in response to determining that the interval between the first lower limit frequency point of the target downlink BWP for switching based on the first switching mode and the second upper limit frequency point of the activated uplink BWP is less than the first predetermined value, and / or determining that the interval between the first upper limit frequency point of the target downlink BWP for switching based on the first switching mode and the second lower limit frequency point of the activated uplink BWP is greater than the second predetermined value, it is determined that the predetermined condition is not met.

[0200] It should be noted that those skilled in the art will understand that the method provided in the embodiments of the present disclosure may be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0201] In one embodiment, in response to determining that the interval between the first upper limit frequency point of the target downlink BWP for performing handover based on the first handover mode and the second lower limit frequency point of the activated uplink BWP is greater than or equal to a first predetermined value, and / or determining that the interval between the first lower limit frequency point of the target downlink BWP for performing handover based on the first handover mode and the second upper limit frequency point of the activated uplink BWP is less than or equal to a second predetermined value, it is determined that the predetermined condition is satisfied;

[0202] The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

[0203] like Figure 13 As shown, this embodiment provides a method for switching BWP, wherein the method includes:

[0204] Step 131: In response to determining that the interval between the second upper limit frequency point of the target uplink BWP for handover performed based on the first handover mode and the first lower limit frequency point of the activated downlink BWP is greater than or equal to a first predetermined value, and / or determining that the interval between the second lower limit frequency point of the target uplink BWP for handover performed based on the first handover mode and the first upper limit frequency point of the activated downlink BWP is less than or equal to a second predetermined value, determining that the predetermined condition is satisfied;

[0205] The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

[0206] It should be noted that this embodiment may be applied to a scenario where the downlink BWP position is configured after the uplink BWP position.

[0207] In one embodiment, the terminal currently uses an uplink BWP and a downlink BWP. If it is triggered to switch the uplink BWP, this is the scenario of switching the current uplink BWP. For the scenario where the current uplink BWP needs to be switched, the uplink BWP to be switched to is the target uplink BWP. Please refer to Figure 6 The reference frequency of the target uplink BWP for performing BWP switching based on the first switching mode may include the second upper limit frequency of the BWP and the second lower limit frequency of the BWP, where the second upper limit frequency may be the highest frequency of the BWP, and the second lower limit frequency may be the lowest frequency of the BWP; the reference frequency of the activated downlink BWP may include the first upper limit frequency and the first lower limit frequency of the BWP, where the first upper limit frequency may be the highest frequency of the BWP, and the first lower limit frequency may be the lowest frequency of the BWP.

[0208] For example, for the scenario where the current uplink BWP needs to be switched, please refer to Figure 6 Under a predetermined bandwidth, the preset interval between transmitting and receiving data is Fs MHz (Tx-Rx separation), and the terminal's channel bandwidth is BW. If the interval between the first lower frequency limit and the second upper frequency limit is greater than X1, where X1 = Fs - BW; and / or the interval between the first upper frequency limit and the second lower frequency limit is less than X2, where X2 = Fs + BW, then the predetermined condition is satisfied. In response to the predetermined condition being satisfied, the BWP is switched based on the first switching method.

[0209] It should be noted that, in response to determining that the interval between the second upper limit frequency point of the target uplink BWP for switching based on the first switching mode and the first lower limit frequency point of the activated downlink BWP is less than the first predetermined value, and / or determining that the interval between the second lower limit frequency point of the target uplink BWP for switching based on the first switching mode and the first upper limit frequency point of the activated downlink BWP is greater than the second predetermined value, it is determined that the predetermined condition is not met.

[0210] It should be noted that those skilled in the art will understand that the method provided in the embodiments of the present disclosure may be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0211] In one embodiment, for a scenario where the downlink BWP position is configured before the uplink BWP position, in response to determining that the interval between the second lower limit frequency point of the target uplink BWP for handover performed based on the first handover mode and the first upper limit frequency point of the activated downlink BWP is greater than or equal to a first predetermined value, and / or determining that the interval between the second upper limit frequency point of the target uplink BWP for handover performed based on the first handover mode and the first lower limit frequency point of the activated downlink BWP is less than or equal to a second predetermined value, determining that the predetermined condition is satisfied;

[0212] The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

[0213] like Figure 14 As shown, this embodiment provides a method for switching BWP, wherein the method includes:

[0214] Step 141 : In response to switching the BWP based on the second switching mode, switching to an uplink BWP and a downlink BWP having the same BWP identifier based on the second switching mode.

[0215] In one embodiment, a switching mode for switching the bandwidth portion (BWP) is determined based on predetermined conditions. The switching modes include: a first switching mode for switching a downlink BWP or an uplink BWP; and a second switching mode for switching both the downlink BWP and the uplink BWP. The predetermined conditions include: a spacing between a reference frequency of the target uplink BWP for BWP switching based on the first switching mode and a reference frequency of the activated downlink BWP is within a threshold; or a spacing between a reference frequency of the target downlink BWP for BWP switching based on the first switching mode and a reference frequency of the activated uplink BWP is within a threshold. In response to switching the BWP based on the second switching mode, switching is performed based on the second switching mode to an uplink BWP and a downlink BWP with the same BWP identifier.

[0216] In one embodiment, the interval between the reference frequency point of the downlink BWP and the reference frequency point of the uplink BWP configured with the same BWP identifier is within a threshold range.

[0217] In one embodiment, in response to a predetermined condition not being met, a second switching mode is determined for the switching bandwidth portion BWP; when the terminal receives downlink scheduling downlink control information (DCI), simultaneous switching of the downlink BWP and the uplink BWP is performed based on the second mode. In one embodiment, the BWP identifiers of the target downlink BWP and the target uplink BWP to be switched are the same. That is, after the switching is completed, the BWP identifiers of the activated target downlink BWP and the activated uplink BWP are the same.

[0218] It should be noted that those skilled in the art will understand that the method provided in the embodiments of the present disclosure may be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0219] like Figure 15 As shown, this embodiment provides a method for switching BWP, wherein the method includes:

[0220] Step 151: In response to switching the BWP based on the second switching mode, switching to a target uplink BWP and a target downlink BWP based on the second switching mode;

[0221] Among them, the interval between the first lower limit frequency point of the target downlink BWP and the second upper limit frequency point of the target uplink BWP is greater than or equal to a first predetermined value, and / or the interval between the second upper limit frequency point of the target downlink BWP and the first upper limit frequency point of the target uplink BWP is less than or equal to a second predetermined value.

[0222] In one embodiment, a switching mode for switching the bandwidth portion (BWP) is determined based on predetermined conditions; wherein the switching modes include: a first switching mode for switching a downlink BWP or an uplink BWP; and a second switching mode for switching a downlink BWP and an uplink BWP; the predetermined conditions include: the interval between the reference frequency of the target uplink BWP and the reference frequency of the activated downlink BWP when performing BWP switching based on the first switching mode is within a threshold range; or the interval between the reference frequency of the target downlink BWP and the reference frequency of the activated uplink BWP when performing BWP switching based on the first switching mode is within a threshold range. In response to switching the BWP based on the second switching mode, switching is performed to the target uplink BWP and the target downlink BWP based on the second switching mode; wherein the interval between the first lower limit frequency of the target downlink BWP and the second upper limit frequency of the target uplink BWP is greater than or equal to a first predetermined value, and / or the interval between the second upper limit frequency of the target downlink BWP and the first upper limit frequency of the target uplink BWP is less than or equal to a second predetermined value.

[0223] It should be noted that those skilled in the art will understand that the method provided in the embodiments of the present disclosure may be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0224] like Figure 16 As shown, an embodiment of the present disclosure provides a device for switching a BWP, wherein the device is applied to a terminal and includes:

[0225] The processing module 161 is used to determine the switching mode of the switching bandwidth part BWP according to a predetermined condition;

[0226] The switching modes include: a first switching mode, switching the downlink BWP or the uplink BWP; and a second switching mode, switching the downlink BWP and the uplink BWP.

[0227] In one embodiment, the processing module 161 is further configured as follows: the predetermined conditions include: the interval between the reference frequency of the target uplink BWP for performing BWP switching based on the first switching mode and the reference frequency of the activated downlink BWP is within a threshold range; or, the interval between the reference frequency of the target downlink BWP for performing BWP switching based on the first switching mode and the reference frequency of the activated uplink BWP is within a threshold range.

[0228] In one embodiment, the processing module 161 is further configured to

[0229] In response to a predetermined condition being met, switching the BWP based on a first switching manner;

[0230] or,

[0231] In response to a predetermined condition not being satisfied, switching the BWP based on a second switching manner;

[0232] After the BWP is switched, the interval between the center frequency of the downlink BWP and the center frequency of the uplink BWP is within a predetermined range.

[0233] In one embodiment, the processing module 161 is further configured to:

[0234] In response to determining that an interval between a first lower limit frequency point of a target downlink BWP for performing handover based on the first handover mode and a second upper limit frequency point of an activated uplink BWP is greater than or equal to a first predetermined value, and / or determining that an interval between the first upper limit frequency point of a target downlink BWP for performing handover based on the first handover mode and the second lower limit frequency point of an activated uplink BWP is less than or equal to a second predetermined value, determining that the predetermined condition is satisfied;

[0235] The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

[0236] In one embodiment, the processing module 161 is further configured to:

[0237] In response to determining that the interval between the second upper limit frequency point of the target uplink BWP for performing handover based on the first handover mode and the first lower limit frequency point of the activated downlink BWP is greater than or equal to the first predetermined value, and / or determining that the interval between the second lower limit frequency point of the target uplink BWP for performing handover based on the first handover mode and the first upper limit frequency point of the activated downlink BWP is less than or equal to the second predetermined value, determining that the predetermined condition is satisfied;

[0238] The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

[0239] In one embodiment, the processing module 161 is further configured to: set the interval between the reference frequency point of the downlink BWP and the reference frequency point of the uplink BWP having the same BWP identifier to be a predetermined interval.

[0240] In one embodiment, the processing module 161 is further configured to:

[0241] In response to switching the BWP based on the second switching manner, switching is performed based on the second switching manner to an uplink BWP and a downlink BWP having the same BWP identifier.

[0242] In one embodiment, the processing module 161 is further configured to:

[0243] In response to switching the BWP based on the second switching mode, switching to a target uplink BWP and a target downlink BWP based on the second switching mode;

[0244] Among them, the interval between the first lower limit frequency point of the target downlink BWP and the second upper limit frequency point of the target uplink BWP is greater than or equal to a first predetermined value, and / or the interval between the second upper limit frequency point of the target downlink BWP and the first upper limit frequency point of the target uplink BWP is less than or equal to a second predetermined value.

[0245] It should be noted that those skilled in the art will understand that the method provided in the embodiments of the present disclosure may be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

[0246] like Figure 17 As shown, an embodiment of the present disclosure provides a device for switching a BWP, wherein the device is applied to a base station and includes:

[0247] The processing module 171 is used to determine the switching mode of the switching bandwidth part BWP;

[0248] The switching modes include: a first switching mode, switching downlink BWP or uplink BWP; a second switching mode, switching downlink BWP and uplink BWP;

[0249] The sending module 172 is configured to send information indicating a switching mode to the terminal.

[0250] In one embodiment, the processing module 171 is further configured to:

[0251] Determine the switching mode of switching BWP according to predetermined conditions;

[0252] Among them, the predetermined conditions include: the interval between the reference frequency of the target uplink BWP for performing BWP switching based on the first switching mode and the reference frequency of the activated downlink BWP is within a threshold range; or, the interval between the reference frequency of the target downlink BWP for performing BWP switching based on the first switching mode and the reference frequency of the activated uplink BWP is within a threshold range.

[0253] In one embodiment, the processing module 171 is further configured to:

[0254] In response to a predetermined condition being met, switching the BWP based on a first switching manner;

[0255] or,

[0256] In response to a predetermined condition not being satisfied, switching the BWP based on a second switching manner;

[0257] After the BWP is switched, the interval between the center frequency of the downlink BWP and the center frequency of the uplink BWP is within a threshold range.

[0258] In one embodiment, the processing module 171 is further configured to:

[0259] In response to determining that an interval between a first lower limit frequency point of a target downlink BWP for performing handover based on the first handover mode and a second upper limit frequency point of an activated uplink BWP is greater than or equal to a first predetermined value, and / or determining that an interval between the first upper limit frequency point of a target downlink BWP for performing handover based on the first handover mode and the second lower limit frequency point of an activated uplink BWP is less than or equal to a second predetermined value, determining that the predetermined condition is satisfied;

[0260] The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

[0261] In one embodiment, the processing module 171 is further configured to:

[0262] In response to determining that the interval between the second upper limit frequency point of the target uplink BWP for performing handover based on the first handover mode and the first lower limit frequency point of the activated downlink BWP is greater than or equal to the first predetermined value, and / or determining that the interval between the second lower limit frequency point of the target uplink BWP for performing handover based on the first handover mode and the first upper limit frequency point of the activated downlink BWP is less than or equal to the second predetermined value, determining that the predetermined condition is satisfied;

[0263] The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

[0264] In one embodiment, the processing module 171 is further configured to: set the interval between the reference frequency point of the downlink BWP and the reference frequency point of the uplink BWP having the same BWP identifier to be a predetermined interval.

[0265] In one embodiment, the processing module 171 is further configured to:

[0266] In response to switching the BWP based on the second switching manner, switching is performed based on the second switching manner to an uplink BWP and a downlink BWP having the same BWP identifier.

[0267] In one embodiment, the processing module 171 is further configured to:

[0268] In response to switching the BWP based on the second switching mode, switching to a target uplink BWP and a target downlink BWP based on the second switching mode;

[0269] Among them, the interval between the first lower limit frequency point of the target downlink BWP and the second upper limit frequency point of the target uplink BWP is greater than or equal to a first predetermined value, and / or the interval between the second upper limit frequency point of the target downlink BWP and the first upper limit frequency point of the target uplink BWP is less than or equal to a second predetermined value.

[0270] An embodiment of the present disclosure provides a communication device, the communication device including:

[0271] processor;

[0272] a memory for storing processor-executable instructions;

[0273] The processor is configured to implement the method applied to any embodiment of the present disclosure when running the executable instructions.

[0274] The processor may include various types of storage media, which are non-temporary computer storage media that can continue to memorize information stored thereon after the communication device loses power.

[0275] The processor may be connected to the memory via a bus or the like to read the executable program stored in the memory.

[0276] An embodiment of the present disclosure further provides a computer storage medium, wherein the computer storage medium stores a computer executable program, and when the executable program is executed by a processor, the method of any embodiment of the present disclosure is implemented.

[0277] Regarding the apparatus in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0278] like Figure 18 As shown, an embodiment of the present disclosure provides a structure of a terminal.

[0279] Reference Figure 18 As shown, this embodiment provides a terminal 800, which can be a mobile phone, a computer, a digital broadcast terminal, a message transceiver, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0280] Reference Figure 18 , terminal 800 may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input / output (I / O) interface 812 , a sensor component 814 , and a communication component 816 .

[0281] The processing component 802 generally controls the overall operation of the terminal 800, such as operations associated with display, phone calls, data communications, camera operation, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the above-described method. In addition, the processing component 802 may include one or more modules to facilitate interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

[0282] The memory 804 is configured to store various types of data to support operations on the terminal 800. Examples of such data include instructions for any application or method operating on the terminal 800, contact data, phone book data, messages, pictures, videos, etc. The memory 804 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0283] Power supply component 806 provides power to various components of terminal 800. Power supply component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to terminal 800.

[0284] The multimedia component 808 includes a screen that provides an output interface between the terminal 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor can not only sense the boundaries of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the terminal 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have a focal length and optical zoom capability.

[0285] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), which is configured to receive external audio signals when the terminal 800 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

[0286] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as a keyboard, click wheel, buttons, etc. These buttons may include but are not limited to: a home button, volume buttons, a start button, and a lock button.

[0287] The sensor assembly 814 includes one or more sensors for providing various aspects of the terminal 800's status assessment. For example, the sensor assembly 814 can detect the open / closed state of the terminal 800, the relative positioning of components, such as the display and keypad of the terminal 800. The sensor assembly 814 can also detect changes in the position of the terminal 800 or a component of the terminal 800, the presence or absence of user contact with the terminal 800, the orientation or acceleration / deceleration of the terminal 800, and temperature changes of the terminal 800. The sensor assembly 814 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 can also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 can also include an accelerometer, a gyroscope, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0288] The communication component 816 is configured to facilitate wired or wireless communication between the terminal 800 and other devices. The terminal 800 can access a wireless network based on a communication standard, such as Wi-Fi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0289] In an exemplary embodiment, the terminal 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above methods.

[0290] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, which can be executed by the processor 820 of the terminal 800 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0291] like Figure 19 As shown, an embodiment of the present disclosure shows a structure of a base station. For example, the base station 900 can be provided as a network side device. Figure 19 Base station 900 includes a processing component 922, which further includes one or more processors, and memory resources represented by memory 932 for storing instructions executable by processing component 922, such as applications. The applications stored in memory 932 may include one or more modules, each corresponding to a set of instructions. In addition, processing component 922 is configured to execute instructions to perform any of the aforementioned methods applied to the base station.

[0292] The base station 900 may also include a power supply component 926 configured to perform power management for the base station 900, a wired or wireless network interface 950 configured to connect the base station 900 to a network, and an input / output (I / O) interface 958. The base station 900 may operate based on an operating system stored in the memory 932, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or the like.

[0293] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention that follow from the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0294] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A method for switching BWP, wherein: The method is executed by a terminal, and includes: Determine the switching mode of the switching bandwidth part BWP; The switching mode includes: a first switching mode, switching downlink BWP or uplink BWP; a second switching mode, switching downlink BWP and uplink BWP; The determining of the switching mode of the switching bandwidth part BWP includes: Determining a switching mode for switching the BWP according to a predetermined condition; The predetermined condition includes: an interval between a reference frequency of a target uplink BWP for performing BWP switching based on the first switching mode and a reference frequency of an activated downlink BWP is within a threshold range; or an interval between a reference frequency of a target downlink BWP for performing BWP switching based on the first switching mode and a reference frequency of an activated uplink BWP is within a threshold range; The step of determining the switching mode of the switching bandwidth part BWP according to a predetermined condition includes: In response to the predetermined condition being met, switching the BWP based on the first switching manner; or, In response to the predetermined condition not being satisfied, switching the BWP based on the second switching manner; After the BWP is switched, the interval between the center frequency of the downlink BWP and the center frequency of the uplink BWP is within the threshold range; The threshold range includes one of the following: greater than a first predetermined value, greater than the first predetermined value and less than a second predetermined value.

2. The method according to claim 1, wherein The method further comprises: In response to determining that the interval between the first lower limit frequency point of the target downlink BWP for performing handover based on the first handover mode and the second upper limit frequency point of the activated uplink BWP is greater than or equal to a first predetermined value, and / or determining that the interval between the first upper limit frequency point of the target downlink BWP for performing handover based on the first handover mode and the second lower limit frequency point of the activated uplink BWP is less than or equal to a second predetermined value, determining that the predetermined condition is satisfied; The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

3. The method according to claim 1, wherein The method further comprises: In response to determining that the interval between the second upper limit frequency point of the target uplink BWP for performing handover based on the first handover mode and the first lower limit frequency point of the activated downlink BWP is greater than or equal to a first predetermined value, and / or determining that the interval between the second lower limit frequency point of the target uplink BWP for performing handover based on the first handover mode and the first upper limit frequency point of the activated downlink BWP is less than or equal to a second predetermined value, determining that the predetermined condition is satisfied; The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

4. The method according to claim 1, wherein The interval between the reference frequency point of the downlink BWP and the reference frequency point of the uplink BWP configured with the same BWP identifier is a predetermined interval.

5. The method according to claim 4, wherein The method further comprises: In response to switching the BWP based on the second switching mode, switching is performed based on the second switching mode to an uplink BWP and a downlink BWP having the same BWP identifier.

6. The method according to claim 1, wherein The method further comprises: In response to switching the BWP based on the second switching mode, switching to a target uplink BWP and a target downlink BWP based on the second switching mode; Among them, the interval between the first lower limit frequency point of the target downlink BWP and the second upper limit frequency point of the target uplink BWP is greater than or equal to a first predetermined value, and / or the interval between the second upper limit frequency point of the target downlink BWP and the first upper limit frequency point of the target uplink BWP is less than or equal to a second predetermined value.

7. A method for switching BWP, wherein: The method is performed by a base station, and includes: Determine the switching mode of the switching bandwidth part BWP; The switching mode includes: a first switching mode, switching downlink BWP or uplink BWP; a second switching mode, switching downlink BWP and uplink BWP; Sending information indicating the switching mode to the terminal; The determining of the switching mode of the switching bandwidth part BWP includes: Determining a switching mode for switching the BWP according to a predetermined condition; The predetermined condition includes: an interval between a reference frequency of a target uplink BWP for performing BWP switching based on the first switching mode and a reference frequency of an activated downlink BWP is within a threshold range; or an interval between a reference frequency of a target downlink BWP for performing BWP switching based on the first switching mode and a reference frequency of an activated uplink BWP is within a threshold range; The step of determining the switching mode of the switching bandwidth part BWP according to a predetermined condition includes: In response to the predetermined condition being met, switching the BWP based on the first switching manner; or, In response to the predetermined condition not being satisfied, switching the BWP based on the second switching manner; After the BWP is switched, the interval between the center frequency of the downlink BWP and the center frequency of the uplink BWP is within the threshold range; The threshold range includes one of the following: greater than a first predetermined value, greater than the first predetermined value and less than a second predetermined value.

8. The method according to claim 7, wherein: The method further comprises: In response to determining that the interval between the first lower limit frequency point of the target downlink BWP for performing handover based on the first handover mode and the second upper limit frequency point of the activated uplink BWP is greater than or equal to a first predetermined value, and / or determining that the interval between the first upper limit frequency point of the target downlink BWP for performing handover based on the first handover mode and the second lower limit frequency point of the activated uplink BWP is less than or equal to a second predetermined value, determining that the predetermined condition is satisfied; The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

9. The method according to claim 7, wherein: The method further comprises: In response to determining that the interval between the second upper limit frequency point of the target uplink BWP for performing handover based on the first handover mode and the first lower limit frequency point of the activated downlink BWP is greater than or equal to a first predetermined value, and / or determining that the interval between the second lower limit frequency point of the target uplink BWP for performing handover based on the first handover mode and the first upper limit frequency point of the activated downlink BWP is less than or equal to a second predetermined value, determining that the predetermined condition is satisfied; The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

10. The method according to claim 7, wherein: The interval between the reference frequency point of the downlink BWP and the reference frequency point of the uplink BWP configured with the same BWP identifier is a predetermined interval.

11. The method according to claim 10, wherein: The method further comprises: In response to switching the BWP based on the second switching mode, switching is performed based on the second switching mode to an uplink BWP and a downlink BWP having the same BWP identifier.

12. The method according to claim 7, wherein: The method further comprises: In response to switching the BWP based on the second switching mode, switching to a target uplink BWP and a target downlink BWP based on the second switching mode; Among them, the interval between the first lower limit frequency point of the target downlink BWP and the second upper limit frequency point of the target uplink BWP is greater than or equal to a first predetermined value, and / or the interval between the second upper limit frequency point of the target downlink BWP and the first upper limit frequency point of the target uplink BWP is less than or equal to a second predetermined value.

13. A device for switching BWP, wherein: The device comprises: A processing module, configured to determine a switching mode of the switching bandwidth part BWP; The switching mode includes: a first switching mode, switching downlink BWP or uplink BWP; a second switching mode, switching downlink BWP and uplink BWP; Wherein, the processing module is further used to: determine a switching mode of switching the BWP according to a predetermined condition; The predetermined condition includes: an interval between a reference frequency of a target uplink BWP for performing BWP switching based on the first switching mode and a reference frequency of an activated downlink BWP is within a threshold range; or an interval between a reference frequency of a target downlink BWP for performing BWP switching based on the first switching mode and a reference frequency of an activated uplink BWP is within a threshold range; Wherein, the processing module is also used to In response to the predetermined condition being met, switching the BWP based on the first switching manner; or, In response to the predetermined condition not being satisfied, switching the BWP based on the second switching manner; After the BWP is switched, the interval between the center frequency of the downlink BWP and the center frequency of the uplink BWP is within the threshold range; The threshold range includes one of the following: greater than a first predetermined value, greater than the first predetermined value and less than a second predetermined value.

14. The device according to claim 13, wherein The processing module is further configured to: In response to determining that the interval between the first lower limit frequency point of the target downlink BWP for performing handover based on the first handover mode and the second upper limit frequency point of the activated uplink BWP is greater than or equal to a first predetermined value, and / or determining that the interval between the first upper limit frequency point of the target downlink BWP for performing handover based on the first handover mode and the second lower limit frequency point of the activated uplink BWP is less than or equal to a second predetermined value, determining that the predetermined condition is satisfied; The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

15. The device according to claim 13, wherein The processing module is further configured to: In response to determining that the interval between the second upper limit frequency point of the target uplink BWP for performing handover based on the first handover mode and the first lower limit frequency point of the activated downlink BWP is greater than or equal to a first predetermined value, and / or determining that the interval between the second lower limit frequency point of the target uplink BWP for performing handover based on the first handover mode and the first upper limit frequency point of the activated downlink BWP is less than or equal to a second predetermined value, determining that the predetermined condition is satisfied; The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

16. The device according to claim 13, wherein The processing module is further configured to: configure the reference frequency point of the downlink BWP and the reference frequency point of the uplink BWP with the same BWP identifier to be a predetermined interval.

17. The device according to claim 16, wherein The processing module is further configured to: In response to switching the BWP based on the second switching mode, switching is performed based on the second switching mode to an uplink BWP and a downlink BWP having the same BWP identifier.

18. The device according to claim 13, wherein The processing module is further configured to: In response to switching the BWP based on the second switching mode, switching to a target uplink BWP and a target downlink BWP based on the second switching mode; Among them, the interval between the first lower limit frequency point of the target downlink BWP and the second upper limit frequency point of the target uplink BWP is greater than or equal to a first predetermined value, and / or the interval between the second upper limit frequency point of the target downlink BWP and the first upper limit frequency point of the target uplink BWP is less than or equal to a second predetermined value.

19. A device for switching BWP, wherein: The device comprises: A processing module, configured to determine a switching mode of the switching bandwidth part BWP; The switching mode includes: a first switching mode, switching downlink BWP or uplink BWP; a second switching mode, switching downlink BWP and uplink BWP; A sending module, configured to send information indicating the switching mode to the terminal; Wherein, the processing module is further used for: Determining a switching mode for switching the BWP according to a predetermined condition; The predetermined condition includes: an interval between a reference frequency of a target uplink BWP for performing BWP switching based on the first switching mode and a reference frequency of an activated downlink BWP is within a threshold range; or an interval between a reference frequency of a target downlink BWP for performing BWP switching based on the first switching mode and a reference frequency of an activated uplink BWP is within a threshold range; Wherein, the processing module is further used for: In response to the predetermined condition being met, switching the BWP based on the first switching manner; or, In response to the predetermined condition not being satisfied, switching the BWP based on the second switching manner; After the BWP is switched, the interval between the center frequency of the downlink BWP and the center frequency of the uplink BWP is within the threshold range; The threshold range includes one of the following: greater than a first predetermined value, greater than the first predetermined value and less than a second predetermined value.

20. The device according to claim 19, wherein The processing module is further configured to: In response to determining that the interval between the first lower limit frequency point of the target downlink BWP for performing handover based on the first handover mode and the second upper limit frequency point of the activated uplink BWP is greater than or equal to a first predetermined value, and / or determining that the interval between the first upper limit frequency point of the target downlink BWP for performing handover based on the first handover mode and the second lower limit frequency point of the activated uplink BWP is less than or equal to a second predetermined value, determining that the predetermined condition is satisfied; The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

21. The apparatus according to claim 19, wherein The processing module is further configured to: In response to determining that the interval between the second upper limit frequency point of the target uplink BWP for performing handover based on the first handover mode and the first lower limit frequency point of the activated downlink BWP is greater than or equal to a first predetermined value, and / or determining that the interval between the second lower limit frequency point of the target uplink BWP for performing handover based on the first handover mode and the first upper limit frequency point of the activated downlink BWP is less than or equal to a second predetermined value, determining that the predetermined condition is satisfied; The first predetermined value is the difference between the predetermined interval and the channel bandwidth; the second predetermined value is the sum of the predetermined interval and the channel bandwidth.

22. The apparatus according to claim 19, wherein The processing module is further configured to: configure the reference frequency point of the downlink BWP and the reference frequency point of the uplink BWP with the same BWP identifier to be a predetermined interval.

23. The device according to claim 22, wherein The processing module is further configured to: In response to switching the BWP based on the second switching mode, switching is performed based on the second switching mode to an uplink BWP and a downlink BWP having the same BWP identifier.

24. The apparatus according to claim 19, wherein The processing module is further configured to: In response to switching the BWP based on the second switching mode, switching to a target uplink BWP and a target downlink BWP based on the second switching mode; Among them, the interval between the first lower limit frequency point of the target downlink BWP and the second upper limit frequency point of the target uplink BWP is greater than or equal to a first predetermined value, and / or the interval between the second upper limit frequency point of the target downlink BWP and the first upper limit frequency point of the target uplink BWP is less than or equal to a second predetermined value.

25. A communication device, wherein: include: Memory; The processor is connected to the memory and is configured to implement the method according to any one of claims 1 to 6 or 7 to 12 by executing computer-executable instructions stored in the memory.

26. A computer storage medium storing computer-executable instructions, wherein the computer-executable instructions are capable of implementing the method according to any one of claims 1 to 6, or 7 to 12 after being executed by a processor.

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