A BWP switching method and device, electronic equipment and storage medium

Abstract

The application provides a BWP switching method and device, electronic equipment and storage medium. The method is applied to a base station and comprises the following steps: when it is necessary to switch the current uplink BWP of a target UE, a set number of uplink DCIs are generated; the uplink DCIs are sent to the target UE at the time slots set for each uplink DCI, so that when the target UE successfully parses the uplink DCI and has not successfully parsed other uplink DCIs carrying a HARQ identifier before successfully parsing the uplink DCI, the HARQ identifier is stored, the current uplink BWP is switched to a target BWP corresponding to a target BWP identifier, and data transmission is performed using PUSCH resources corresponding to the target BWP identifier. All time slots are continuous, and the values K2 of the time slot offsets corresponding to the PUSCH resources corresponding to the target BWP identifiers indicated by all uplink DCIs are different. The application can improve the BWP switching success rate.

Description

Technical Field

[0001] The present application relates to the field of communication technologies, and in particular to a BWP switching method, device, electronic device, and storage medium. Background Art

[0002] In NR (New Radio), a base station can dynamically switch the uplink bandwidth part (BWP) of a user equipment (UE) based on the traffic volume of the UE.

[0003] Therefore, how to improve the BWP switching success rate is one of the technical problems that need to be solved at present. Summary of the Invention

[0004] To overcome the problems existing in the related art, the present application provides a BWP switching method, device, electronic device and storage medium.

[0005] According to a first aspect of an embodiment of the present application, a BWP switching method is provided, the method being applied to a base station, the method including:

[0006] When the current uplink BWP of the target UE needs to be switched, generating a set number of uplink DCIs for instructing the target UE to switch the uplink BWP, wherein all uplink DCIs carry the same HARQ identifier and the same target BWP identifier, and the value of the set number is a positive integer greater than 1;

[0007] The uplink DCI is sent to the target UE in the time slot set for each uplink DCI, so that when the target UE successfully parses the uplink DCI and has not successfully parsed other uplink DCI carrying the HARQ identifier before successfully parsing the uplink DCI, the HARQ identifier is stored, the current uplink BWP is switched to the target BWP corresponding to the target BWP identifier indicated by the uplink DCI, and the PUSCH resource corresponding to the target BWP identifier indicated by the uplink DCI is used for data transmission, wherein all time slots are continuous, and the time slot offset value K2 corresponding to the PUSCH resource corresponding to the target BWP identifier indicated by all uplink DCIs is different.

[0008] According to a second aspect of an embodiment of the present application, a BWP switching method is provided, the method being applied to a UE, the method including:

[0009] after successfully resolving the uplink DCI in the target time slot, if no other uplink DCI carrying the same HARQ identifier as the HARQ identifier carried in the uplink DCI has been successfully resolved in other time slots before the uplink DCI is successfully resolved, storing the HARQ identifier carried in the uplink DCI;

[0010] switching the current uplink BWP to a target uplink BWP corresponding to the target BWP identifier indicated by the uplink DCI, and using PUSCH resources corresponding to the target BWP identifier indicated by the uplink DCI for data transmission.

[0011] According to a third aspect of the embodiments of the present application, a BWP switching device is provided, the device being applied to a base station, and the device comprises:

[0012] a generating module configured to generate a set number of uplink DCIs for indicating a target UE to switch uplink BWP when the target UE needs to switch the current uplink BWP, wherein all the uplink DCIs carry the same HARQ identifier and the same target BWP identifier, and the set number is a positive integer greater than 1;

[0013] a sending module configured to send each uplink DCI to the target UE in a time slot set for the uplink DCI, so that the target UE, when successfully resolving the uplink DCI and before successfully resolving the uplink DCI, has not successfully resolved other uplink DCIs carrying the HARQ identifier, stores the HARQ identifier, switches the current uplink BWP to a target uplink BWP corresponding to the target BWP identifier indicated by the uplink DCI, and uses PUSCH resources corresponding to the target BWP identifier indicated by the uplink DCI for data transmission, wherein all the time slots are consecutive, and the values K2 of time slot offsets corresponding to the PUSCH resources corresponding to the target BWP identifier indicated by all the uplink DCIs are different.

[0014] According to a fourth aspect of the embodiments of the present application, a BWP switching device is provided, and the device is applied to a UE, and the device comprises:

[0015] a storing module configured to, after successfully resolving an uplink DCI sent by a base station for indicating the UE to switch uplink BWP in a target time slot, if no other uplink DCI carrying the same HARQ identifier as the HARQ identifier carried in the uplink DCI has been successfully resolved in other time slots before the uplink DCI is successfully resolved, store the HARQ identifier carried in the uplink DCI;

[0016] The switching module is used to switch the current uplink BWP to the target BWP corresponding to the target BWP identifier indicated by the uplink DCI, and use the PUSCH resource corresponding to the target BWP identifier indicated by the uplink DCI for data transmission.

[0017] According to a fifth aspect of an embodiment of the present application, an electronic device is provided, comprising a processor and a machine-readable storage medium, wherein the machine-readable storage medium stores machine-executable instructions that can be executed by the processor, and the processor is prompted by the machine-executable instructions to implement the method steps of any of the above-mentioned BWP switching methods.

[0018] According to a sixth aspect of an embodiment of the present application, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method steps of any BWP switching method are implemented.

[0019] The technical solutions provided by the embodiments of the present application may have the following beneficial effects:

[0020] In an embodiment of the present application, when the base station needs to switch the current uplink BWP of the target UE, it will generate a set number of uplink DCIs for instructing the target UE to switch the uplink BWP, wherein all uplink DCIs carry the same HARQ identifier and the same target BWP identifier; the uplink DCI is sent to the target UE in the time slot set for each uplink DCI, so that when the target UE successfully parses the uplink DCI and has not successfully parsed other uplink DCIs carrying the HARQ identifier before successfully parsing the uplink DCI, the HARQ identifier is stored, the current uplink BWP is switched to the target BWP corresponding to the target BWP identifier indicated by the uplink DCI, and the physical uplink shared channel PUSCH resource corresponding to the target BWP identifier indicated by the uplink DCI is used for data transmission, wherein all time slots are continuous, and the K2 corresponding to the PUSCH resources corresponding to the target BWP identifiers indicated by all uplink DCIs is different.

[0021] In this way, the base station can improve the success rate of BWP switching on the target UE side by sending a set number of uplink DCIs to the target UE.

[0022] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0024] Figure 1This is a flowchart of a BWP switching method provided in an embodiment of the present application;

[0025] Figure 2 The second flowchart of a BWP switching method provided in an embodiment of the present application;

[0026] Figure 3 This is one of the structural diagrams of a BWP switching device provided in an embodiment of the present application;

[0027] Figure 4 This is a second structural diagram of a BWP switching device provided in an embodiment of the present application;

[0028] Figure 5 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0029] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring 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 embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0030] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. As used in this application and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or a specified number of the associated listed items.

[0031] It should be understood that although the terms first, second, third, etc. may be used in this application to describe various information, 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 this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the words "if" or "if" as used herein may be interpreted as "when" or "when".

[0032] Next, the embodiments of the present application are described in detail.

[0033] The embodiment of the present application provides a BWP switching method, which is applied to a base station, for example, a 5G base station, etc. Figure 1 As shown, the method may include the following steps:

[0034] S11 . When it is necessary to switch the current uplink BWP of the target user equipment UE, generate a set number of uplink DCIs for instructing the target UE to switch the uplink BWP.

[0035] In this step, all uplink and downlink control information (Downlink Control Information, DCI) carry the same Hybrid Automatic Repeat Request (HARQ) identifier and the same target BWP identifier.

[0036] S12. Send the uplink DCI to the target UE in the time slot set for each uplink DCI, so that when the target UE successfully parses the uplink DCI and has not successfully parsed other uplink DCI carrying the HARQ identifier before successfully parsing the uplink DCI, the target UE stores the HARQ identifier, switches the current uplink BWP to the target BWP corresponding to the target BWP identifier indicated by the uplink DCI, and uses the PUSCH resource corresponding to the target BWP identifier indicated by the uplink DCI for data transmission.

[0037] In this step, all time slots are continuous, and the time slot offset values ​​(called K2) corresponding to the physical uplink shared channel (PUSCH) resources corresponding to the target BWP identifiers indicated by all uplink DCIs are different.

[0038] In addition, in this step, when the base station transmits the uplink DCI to the target UE in the time slot set for each uplink DCI, it transmits the uplink DCI to the target UE based on the uplink Physical Downlink Control Channel (PDCCH) resources. It should be noted that in the above step S11, the above-mentioned set number can be set by the administrator based on the network requirements of the network where the base station is located and pre-configured on the base station.

[0039] In an example, in order not to affect data transmission between the base station and the target UE, the base station may configure the PUSCH resource corresponding to the target BWP identifier to not support data retransmission.

[0040] It should be further explained that, in an embodiment of the present application, for the target UE, when the uplink DCI is successfully parsed and before the uplink DCI is successfully parsed, other uplink DCIs carrying the same HARQ identifier as the HARQ identifier carried in the uplink DCI are successfully parsed in other time slots, the uplink DCI is discarded.

[0041] Furthermore, in the embodiment of the present application, the base station may further perform the following operations:

[0042] After sending the uplink DCI to the target UE in the time slot set for each uplink DCI, if the PUSCH resources fed back by the target UE are not received, it is determined that the target UE has not successfully switched the current uplink BWP, and a PDCCH command (ORDER) carrying the target BWP identifier is sent to the target UE, so that after receiving the PDCCH ORDER, the target UE determines whether the target BWP corresponding to the target BWP identifier carried in the PDCCH ORDER is configured with a physical random access channel (PRACH) resource. When the judgment result is no, the current uplink BWP is switched to the initial BWP, and a random access process is initiated to the base station based on the PRACH resources corresponding to the initial BWP; when the judgment result is yes, the current uplink BWP is switched to the target BWP, and a random access process is initiated to the base station based on the PRACH resources.

[0043] It should be noted that, in this operation process, when the base station sends the PDCCH ORDER carrying the target BWP identifier to the target UE, it sends the PDCCH ORDER to the target UE based on the uplink PDCCH resource.

[0044] In addition, in this operation process, after the target UE initiates a random access process to the base station based on the PRACH resource, if the PRACH resources corresponding to all BWPs on the base station side are different, then when the base station successfully parses the random access preamble (MSG1) message (abbreviated as MSG1) in the random access process sent by the target UE based on the PRACH resource corresponding to the target BWP, it determines that the target UE has successfully switched to the target BWP.

[0045] If the PRACH resources corresponding to all BWPs on the base station side overlap, the base station determines that the target UE has successfully switched to the target BWP when it successfully parses the random access response (Random Access Response, RAR) UL authorization scheduling message (PUSCH scheduled by RAR UL grant) message (abbreviated as MSG3) in the random access process sent by the target UE based on the PRACH resource corresponding to the target BWP.

[0046] Here, the implementation process of the target UE initiating the random access procedure is an existing technology and will not be described in detail here.

[0047] The following content is an implementation process of the BWP switching method described on the base station side. The following content is an implementation process of the BWP switching method described on the UE side.

[0048] The embodiment of the present application provides a BWP switching method, which is applied to UE, such as Figure 2 As shown, the method may include the following steps:

[0049] S21. After successfully parsing the uplink DCI sent by the base station to instruct the UE to switch the uplink BWP in the target time slot, if other uplink DCI carrying the same HARQ identifier as the HARQ identifier carried in the uplink DCI has not been successfully parsed in other time slots before successfully parsing the uplink DCI, then the HARQ identifier carried in the uplink DCI is stored.

[0050] S22: Switch the current uplink BWP to the target BWP corresponding to the target BWP identifier indicated by the uplink DCI, and use the PUSCH resource corresponding to the target BWP identifier indicated by the uplink DCI for data transmission.

[0051] Furthermore, in the embodiment of the present application, the UE may further perform the following operations:

[0052] If other uplink DCI carrying the same HARQ identifier as that carried in the uplink DCI is successfully parsed in other time slots before the uplink DCI is successfully parsed, the uplink DCI is discarded.

[0053] Here, the K2 corresponding to the PUSCH resource corresponding to the target BWP identifier indicated by the uplink DCI and other uplink DCI is different.

[0054] For example, assume that when base station 1 needs to switch the current uplink BWP of UE1, it generates three uplink DCIs for instructing UE1 to switch the uplink BWP. These three uplink DCIs carry the same HARQ identifier (e.g., HARQ1) and the same target BWP identifier (e.g., BWP1).

[0055] Assume that base station 1 sends the first uplink DCI to UE1 in time slot 1, sends the second uplink DCI to UE1 in time slot 2, and sends the third uplink DCI to UE1 in time slot 3. Here, time slot 1, time slot 2, and time slot 3 are three consecutive time slots.

[0056] The subsequent assumption is that the first uplink DCI transmission fails, and the second uplink DCI and the third DCI transmission are successful. For UE1, when the second uplink DCI is successfully parsed, and no other uplink DCI carrying HARQ1 is successfully parsed before the second uplink DCI is successfully parsed, HARQ1 is stored, the current uplink BWP is switched to the target BWP corresponding to the target BWP1 indicated by the uplink DCI, and data transmission is performed using the PUSCH resource corresponding to the target BWP1 indicated by the uplink DCI.

[0057] In the case that the third uplink DCI is successfully parsed, and the second uplink DCI is also successfully parsed in slot 2 before the third uplink DCI is successfully parsed, UE1 will discard the third uplink DCI.

[0058] As can be seen from the above technical solutions, in the embodiments of the present application, when the base station needs to switch the current uplink BWP of the target UE, a set number of uplink DCIs for indicating the target UE to switch the uplink BWP are generated, wherein the same HARQ identifier and the same target BWP identifier are carried in all the uplink DCIs; the target UE is sent the uplink DCI at the time slot set for each uplink DCI, so that the target UE stores the HARQ identifier when the uplink DCI is successfully parsed and no other uplink DCI carrying the HARQ identifier is successfully parsed before the uplink DCI is successfully parsed, switches the current uplink BWP to the target BWP corresponding to the target BWP identifier indicated by the uplink DCI, and performs data transmission using the physical uplink shared channel (PUSCH) resource corresponding to the target BWP identifier indicated by the uplink DCI, wherein all the time slots are consecutive, and the K2 corresponding to the PUSCH resource corresponding to the target BWP identifier indicated by all the uplink DCIs is different.

[0059] In this way, the base station can improve the success rate of BWP switching on the target UE side by sending a set number of uplink DCIs to the target UE.

[0060] Based on the same inventive concept, the present application also provides a BWP switching device, which is applied to a base station, and a structure diagram thereof is shown in Figure 3 The device specifically comprises:

[0061] A generation module 31 is configured to generate a set number of uplink DCIs for indicating a target UE to switch an uplink BWP when the base station needs to switch the current uplink BWP of the target UE, wherein the same HARQ identifier and the same target BWP identifier are carried in all the uplink DCIs, and the set number is a positive integer greater than 1.

[0062] A sending module is used to send the uplink DCI to the target UE in the time slot set for each uplink DCI, so that when the target UE successfully parses the uplink DCI and has not successfully parsed other uplink DCI carrying the HARQ identifier before successfully parsing the uplink DCI, the target UE stores the HARQ identifier, switches the current uplink BWP to the target BWP corresponding to the target BWP identifier indicated by the uplink DCI, and uses the PUSCH resource corresponding to the target BWP identifier indicated by the uplink DCI for data transmission, wherein all time slots are continuous, and the K2 corresponding to the PUSCH resources corresponding to the target BWP identifiers indicated by all uplink DCIs is different.

[0063] Preferably, the device further comprises:

[0064] Exception handling module ( Figure 3 (not shown) is used for, after sending the uplink DCI to the target UE in the time slot set for each uplink DCI, if the PUSCH resource fed back by the target UE is not received, determining that the target UE has not successfully switched the current uplink BWP, and sending a PDCCH ORDER carrying the target BWP identifier to the target UE, so that the target UE, after receiving the PDCCH ORDER, determines whether the target BWP corresponding to the target BWP identifier carried in the PDCCH ORDER is configured with PRACH resources, and when the judgment result is no, switching the current uplink BWP to the initial BWP, and initiating a random access process to the base station based on the PRACH resource corresponding to the initial BWP; when the judgment result is yes, switching the current uplink BWP to the target BWP, and initiating a random access process to the base station based on the PRACH resource.

[0065] The present application also provides a BWP switching device, which is applied to UE. The structural diagram thereof is shown in FIG. Figure 4 As shown, specifically including:

[0066] The storage module 41 is configured to, after successfully parsing the uplink and downlink control information DCI sent by the base station for instructing the UE to switch the uplink BWP in the target time slot, store the HARQ identifier carried in the uplink DCI if other uplink DCI carrying a hybrid automatic repeat request HARQ identifier identical to the HARQ identifier carried in the uplink DCI has not been successfully parsed in other time slots before successfully parsing the uplink DCI;

[0067] The switching module 42 is configured to switch the current uplink BWP to the target BWP corresponding to the target BWP identifier indicated by the uplink DCI, and use the physical uplink shared channel PUSCH resources corresponding to the target BWP identifier indicated by the uplink DCI for data transmission.

[0068] Preferably, the device further comprises:

[0069] Discard Module( Figure 4 (not shown) for discarding the uplink DCI if other uplink DCIs carrying the same HARQ identifier as the uplink DCI are successfully parsed in other time slots before the uplink DCI is successfully parsed;

[0070] The K2 corresponding to the PUSCH resource corresponding to the target BWP identifier indicated by the uplink DCI and other uplink DCI is different.

[0071] It can be seen from the above technical solution that in an embodiment of the present application, when the base station needs to switch the current uplink BWP of the target UE, it will generate a set number of uplink DCIs for instructing the target UE to switch the uplink BWP, wherein all uplink DCIs carry the same HARQ identifier and the same target BWP identifier; the uplink DCI is sent to the target UE in the time slot set for each uplink DCI, so that when the target UE successfully parses the uplink DCI and has not successfully parsed other uplink DCIs carrying the HARQ identifier before successfully parsing the uplink DCI, the HARQ identifier is stored, the current uplink BWP is switched to the target BWP corresponding to the target BWP identifier indicated by the uplink DCI, and the physical uplink shared channel PUSCH resource corresponding to the target BWP identifier indicated by the uplink DCI is used for data transmission, wherein all time slots are continuous, and the K2 corresponding to the PUSCH resources corresponding to the target BWP identifiers indicated by all uplink DCIs is different.

[0072] In this way, the base station can improve the success rate of BWP switching on the target UE side by sending a set number of uplink DCIs to the target UE.

[0073] The present application also provides an electronic device, such as Figure 4 As shown, it includes a processor 41 and a machine-readable storage medium 42, wherein the machine-readable storage medium 42 stores machine-executable instructions that can be executed by the processor 41, and the processor 41 is prompted by the machine-executable instructions to implement the steps of any of the above-mentioned BWP switching methods.

[0074] The machine-readable storage medium may include random access memory (RAM) or non-volatile memory (NVM), such as at least one disk storage device. Alternatively, the machine-readable storage medium may be at least one storage device located remote from the processor.

[0075] The above-mentioned processor can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, and discrete hardware components.

[0076] In another embodiment provided in the present application, a computer-readable storage medium is further provided, wherein a computer program is stored in the computer-readable storage medium. When the computer program is executed by a processor, the steps of any of the above-mentioned BWP switching methods are implemented.

[0077] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A partial bandwidth (BWP) switching method, characterized in that: The method is applied to a base station, and the method includes: When it is necessary to switch the current uplink BWP of the target user equipment UE, generating a set number of uplink and downlink control information DCIs for instructing the target UE to switch the uplink BWP, wherein all the uplink DCIs carry the same hybrid automatic repeat request HARQ identifier and the same target BWP identifier, and the value of the set number is a positive integer greater than 1; The uplink DCI is sent to the target UE in the time slot set for each uplink DCI, so that when the target UE successfully parses the uplink DCI and has not successfully parsed other uplink DCI carrying the HARQ identifier before successfully parsing the uplink DCI, the HARQ identifier is stored, the current uplink BWP is switched to the target BWP corresponding to the target BWP identifier indicated by the uplink DCI, and the physical uplink shared channel PUSCH resource corresponding to the target BWP identifier indicated by the uplink DCI is used for data transmission, wherein all time slots are continuous, and the time slot offset values ​​K2 corresponding to the PUSCH resources corresponding to the target BWP identifiers indicated by all uplink DCIs are different.

2. The method according to claim 1, characterized in that The method further comprises: After sending the uplink DCI to the target UE in the time slot set for each uplink DCI, if the PUSCH resource fed back by the target UE is not received, it is determined that the target UE has not successfully switched the current uplink BWP, and a physical downlink control channel PDCCH order ORDER carrying the target BWP identifier is sent to the target UE, so that the target UE, after receiving the PDCCH ORDER, determines whether the target BWP corresponding to the target BWP identifier carried in the PDCCH ORDER is configured with a physical random access channel PRACH resource. When the judgment result is no, the current uplink BWP is switched to the initial BWP, and a random access process is initiated to the base station based on the PRACH resource corresponding to the initial BWP; when the judgment result is yes, the current uplink BWP is switched to the target BWP, and a random access process is initiated to the base station based on the PRACH resource.

3. A partial bandwidth (BWP) switching method, characterized in that: The method is applied to user equipment UE, and the method includes: After successfully parsing the uplink and downlink control information DCI sent by the base station for instructing the UE to switch the uplink BWP in the target time slot, if other uplink DCI carrying a hybrid automatic repeat request HARQ identifier identical to the HARQ identifier carried in the uplink DCI has not been successfully parsed in other time slots before successfully parsing the uplink DCI, then storing the HARQ identifier carried in the uplink DCI; The current uplink BWP is switched to the target BWP corresponding to the target BWP identifier indicated by the uplink DCI, and the physical uplink shared channel PUSCH resource corresponding to the target BWP identifier indicated by the uplink DCI is used for data transmission, wherein the target time slot and other time slots are continuous, and the time slot offset value K2 corresponding to the PUSCH resource corresponding to the target BWP identifier indicated by the uplink DCI and other uplink DCI is different.

4. The method according to claim 3, characterized in that The method further comprises: If other uplink DCI carrying the same HARQ identifier as that carried in the uplink DCI is successfully parsed in other time slots before the uplink DCI is successfully parsed, the uplink DCI is discarded.

5. A partial bandwidth BWP switching device, characterized in that: The device is applied to a base station, and includes: a generating module, configured to generate, when a current uplink BWP of a target user equipment UE needs to be switched, a set number of uplink and downlink control information DCIs for instructing the target UE to switch the uplink BWP, wherein all uplink DCIs carry the same hybrid automatic repeat request HARQ identifier and the same target BWP identifier, and the value of the set number is a positive integer greater than 1; A sending module is used to send the uplink DCI to the target UE in the time slot set for each uplink DCI, so that when the target UE successfully parses the uplink DCI and has not successfully parsed other uplink DCI carrying the HARQ identifier before successfully parsing the uplink DCI, it stores the HARQ identifier, switches the current uplink BWP to the target BWP corresponding to the target BWP identifier indicated by the uplink DCI, and uses the physical uplink shared channel PUSCH resource corresponding to the target BWP identifier indicated by the uplink DCI for data transmission, wherein all time slots are continuous, and the time slot offset value K2 corresponding to the PUSCH resource corresponding to the target BWP identifier indicated by all uplink DCI is different.

6. The device according to claim 5, characterized in that The device further comprises: An exception handling module is used to determine that the target UE has not successfully switched the current uplink BWP if the PUSCH resource fed back by the target UE is not received after sending the uplink DCI to the target UE in the time slot set for each uplink DCI, and send a physical downlink control channel PDCCH order ORDER carrying the target BWP identifier to the target UE, so that the target UE, after receiving the PDCCH ORDER, determines whether the target BWP corresponding to the target BWP identifier carried in the PDCCH ORDER is configured with a physical random access channel PRACH resource. If the judgment result is no, the current uplink BWP is switched to the initial BWP, and a random access process is initiated to the base station based on the PRACH resource corresponding to the initial BWP; if the judgment result is yes, the current uplink BWP is switched to the target BWP, and a random access process is initiated to the base station based on the PRACH resource.

7. A partial bandwidth BWP switching device, characterized in that: The device is applied to a user equipment UE, and includes: a storage module, configured to, after successfully parsing the uplink and downlink control information DCI sent by the base station for instructing the UE to switch the uplink BWP in the target time slot, store the HARQ identifier carried in the uplink DCI if other uplink DCI carrying a hybrid automatic repeat request HARQ identifier identical to the HARQ identifier carried in the uplink DCI has not been successfully parsed in other time slots before successfully parsing the uplink DCI; A switching module is used to switch the current uplink BWP to the target BWP corresponding to the target BWP identifier indicated by the uplink DCI, and use the physical uplink shared channel PUSCH resource corresponding to the target BWP identifier indicated by the uplink DCI for data transmission, wherein the target time slot and other time slots are continuous, and the time slot offset value K2 corresponding to the PUSCH resource corresponding to the target BWP identifier indicated by the uplink DCI and the other uplink DCI is different.

8. The device according to claim 7, characterized in that The device further comprises: The discarding module is configured to discard the uplink DCI if other uplink DCI carrying the same HARQ identifier as the uplink DCI is successfully parsed in other time slots before the uplink DCI is successfully parsed.

9. An electronic device, characterized in that: The method comprises a processor and a machine-readable storage medium, wherein the machine-readable storage medium stores machine-executable instructions that can be executed by the processor, and the processor is prompted by the machine-executable instructions to implement the method steps according to any one of claims 1 to 4.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method steps according to any one of claims 1 to 4 are implemented.

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