Initial bandwidth part configuration method and apparatus, initial bandwidth part switching method and apparatus

Abstract

The present disclosure provides an initial BWP configuration method and device, and an initial BWP switching method and device, and relates to the field of communication. The technical scheme of the present disclosure is that a network device sends BWP related information of a downlink initial BWP and / or an uplink initial BWP of a specific type of terminal to the terminal, so that the specific type of terminal can determine the downlink initial BWP and the uplink initial BWP according to the BWP related information, thereby realizing initial BWP configuration of the specific type of terminal.

Description

[0001] This application is a divisional application of application number 202280000420.2, filed on February 13, 2022, entitled "Initial Bandwidth Partial Configuration Method and Apparatus, Initial Bandwidth Partial Switching Method and Apparatus". Technical Field

[0002] This disclosure relates to the field of mobile communication technology, and in particular to a method and apparatus for configuring an initial bandwidth part (BWP), as well as a method and apparatus for determining the initial BWP. Background Technology

[0003] In next-generation communication technologies, terminals can operate based on the Bandwidth Part (BWP). That is, the terminal does not need to monitor the entire bandwidth, but only needs to send and receive data on a portion of the system bandwidth.

[0004] The current 3rd Generation Partnership Project (3GPP) standardization introduces a new terminal type: Reduced Capability (Redcap) terminals. For Redcap terminals, how to configure the initial Base Window (BWP), and which BWP to switch to when a Redcap terminal needs to perform a BWP handover during a Random Access Channel (RACH) process, remain unresolved issues. Summary of the Invention

[0005] This disclosure proposes an initial BWP configuration method and apparatus, and an initial BWP switching method and apparatus, thereby filling the technical gaps in the prior art regarding how to configure an initial BWP for a specific type of terminal (such as a Redcap type terminal) and how to perform BWP switching during RACH.

[0006] A first aspect of this disclosure provides an initial BWP configuration method, the method being performed by a network device, the method comprising: sending BWP-related information to a terminal; wherein the BWP-related information includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal with reduced capabilities and / or first uplink initial BWP information indicating an uplink initial BWP dedicated to the specific type of terminal.

[0007] Optionally, for asymmetric spectrum, the center frequency of the uplink initial BWP indicated by the first uplink initial BWP information is aligned with the center frequency of the downlink initial BWP indicated by the first downlink initial BWP information.

[0008] Optionally, the first downlink initial BWP information has at least one of the following search spaces: Random Access Response (RAR) search space, paging search space, and other system message search spaces.

[0009] Optionally, the first downlink initial BWP information may only have a RAR search space or a paging search space.

[0010] Optionally, the BWP-related information is carried in System Information Block Type 1 (SIB1).

[0011] A second aspect of this disclosure provides an initial BWP configuration method, which is performed by a specific type of terminal. The method includes: acquiring BWP-related information sent by a network device, wherein the BWP-related information includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a capability-reduced specific type of terminal and / or first uplink initial BWP information indicating an uplink initial BWP dedicated to the specific type of terminal; and determining the uplink initial BWP and downlink initial BWP used by the specific type of terminal based on the BWP-related information.

[0012] Optionally, determining the downlink initial BWP used by a specific type of terminal based on the BWP-related information includes: when the BWP-related information includes the first downlink initial BWP information, determining the downlink initial BWP indicated by the first downlink initial BWP information as the downlink initial BWP used by the specific type of terminal; when the BWP-related information does not include the first downlink initial BWP information, determining the downlink initial BWP indicated by the second downlink initial BWP information as the downlink initial BWP used by the specific type of terminal, wherein the second downlink initial BWP information is included in the BWP-related information or the main information block (MIB), and the second downlink initial BWP information indicates the downlink initial BWP used for a conventional type of terminal.

[0013] Optionally, determining the uplink initial BWP used by a specific type of terminal based on the BWP-related information includes: when the BWP-related information includes the first uplink initial BWP information, determining the uplink initial BWP indicated by the first uplink initial BWP information as the uplink initial BWP used by the specific type of terminal; when the BWP-related information does not include the first uplink initial BWP information, determining the uplink initial BWP indicated by the second uplink initial BWP information as the uplink initial BWP used by the specific type of terminal, wherein the second uplink initial BWP information is included in the BWP-related information or the main information block (MIB), and the second uplink initial BWP information indicates an uplink initial BWP for a conventional type of terminal.

[0014] Optionally, obtaining the BWP-related information sent by the network device includes: obtaining the BWP-related information from System Information Block Type 1 (SIB1).

[0015] A third aspect of this disclosure provides an initial BWP handover method, which is performed by a specific type of terminal in a connected state. The method includes: performing a BWP handover based on BWP-related information obtained from system information sent from a network device; wherein the system information includes a Master Information Block (MIB) and / or a System Information Block Type 1 (SIB1).

[0016] Optionally, the BWP handover based on the BWP-related information obtained from the system information sent by the network device includes any of the following steps: if there is no Random Access Channel (RACH) on the currently active BWP, perform uplink BWP handover and downlink BWP handover based on the BWP-related information obtained from the system information; if the BWP inactivity timer on the currently active BWP times out and the specific type of terminal is not configured with a default downlink BWP, perform downlink BWP handover based on the BWP-related information obtained from the system information.

[0017] Optionally, if there is no Random Access Channel (RACH) on the currently active BWP, the uplink BWP handover based on the BWP-related information obtained from the system information includes: when the BWP-related information obtained from SIB1 includes first uplink initial BWP information indicating an uplink initial BWP dedicated to the specific type of terminal, the uplink BWP is switched to the uplink initial BWP indicated by the first uplink initial BWP information.

[0018] Optionally, if there is no random access channel (RACH) on the currently active BWP, the uplink BWP handover based on the BWP-related information obtained from the system information includes: when the BWP-related information obtained from SIB1 includes first uplink initial BWP information indicating an uplink initial BWP dedicated to the specific type of terminal and the uplink initial BWP indicated by the first uplink initial BWP information has random access resources configured for the specific type of terminal, the uplink BWP is switched to the uplink initial BWP indicated by the first uplink initial BWP information.

[0019] Optionally, if there is no random access channel (RACH) on the currently active BWP, the uplink BWP handover based on the BWP-related information obtained from the system information includes: when the BWP-related information obtained from SIB1 includes second uplink initial BWP information indicating an uplink initial BWP for a regular type of terminal but does not include first uplink initial BWP information indicating an uplink initial BWP dedicated to the specific type of terminal, or when the BWP-related information obtained from SIB1 includes both the first uplink initial BWP information and the second uplink initial BWP information but the uplink initial BWP indicated by the first uplink initial BWP information does not have random access resources configured for the specific type of terminal, the uplink BWP is switched to the uplink initial BWP indicated by the second uplink initial BWP information.

[0020] Optionally, if there is no RACH on the currently active BWP, performing downlink BWP switching based on the BWP-related information obtained from the system information includes: switching the downlink BWP to the downlink initial BWP of the RAR search space with a specific type of terminal.

[0021] Optionally, switching the downlink BWP to the downlink initial BWP with a RAR search space for a specific type of terminal includes: when the BWP-related information obtained from SIB1 includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, and the downlink initial BWP indicated by the first downlink initial BWP information has a RAR search space, the downlink BWP is switched to the downlink initial BWP indicated by the first downlink initial BWP information.

[0022] Optionally, switching the downlink BWP to the downlink initial BWP with a RAR search space for a specific type of terminal includes: when the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a regular type of terminal and first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, wherein the downlink initial BWP indicated by the first downlink initial BWP information does not have a RAR search space, and the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1 meets a preset bandwidth requirement, the downlink BWP is switched to the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1.

[0023] Optionally, switching the downlink BWP to the downlink initial BWP with a RAR search space for a specific type of terminal includes: when the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a regular type of terminal and first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, the downlink initial BWP indicated by the first downlink initial BWP information does not have a RAR search space, and the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1 does not meet the preset bandwidth requirement, the downlink BWP is switched to the downlink initial BWP for a regular type of terminal indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB.

[0024] Optionally, switching the downlink BWP to the downlink initial BWP with a RAR search space for a specific type of terminal includes: when the BWP-related information obtained from SIB1 does not include second downlink initial BWP information indicating a downlink initial BWP for a regular type of terminal but includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, and the downlink initial BWP indicated by the first downlink initial BWP information does not have a RAR search space, the downlink BWP is switched to the downlink initial BWP for a regular type of terminal indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB.

[0025] Optionally, switching the downlink BWP to the downlink initial BWP with a RAR search space for a specific type of terminal includes: when the BWP-related information obtained from SIB1 includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, and the downlink initial BWP indicated by the first downlink initial BWP information does not have a RAR search space, switching the downlink BWP to the downlink initial BWP for a regular type of terminal indicated by third downlink initial BWP information included in the BWP-related information obtained from MIB.

[0026] Optionally, if the BWP inactivity timer on the currently active BWP times out and the specific type of terminal is not configured with a default downlink BWP, performing downlink BWP switching based on the BWP-related information obtained from the system information includes: when the BWP-related information obtained from SIB1 includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, switching the downlink BWP to the downlink initial BWP indicated by the first downlink initial BWP information.

[0027] Optionally, the downlink BWP handover based on the BWP-related information obtained from the system information includes: when the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a general type of terminal but does not include first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, and the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1 meets a preset bandwidth requirement, the downlink BWP is switched to the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1.

[0028] Optionally, the downlink BWP handover based on the BWP-related information obtained from the system information includes: when the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a regular type of terminal but does not include first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, and the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1 does not meet the preset bandwidth requirement, the downlink BWP is switched to the downlink initial BWP for a regular type of terminal indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB.

[0029] Optionally, performing downlink BWP handover based on BWP-related information obtained from the system information includes: when the BWP-related information obtained from SIB1 does not include second downlink initial BWP information indicating a downlink initial BWP for a conventional type terminal and first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type terminal, the downlink BWP is switched to the downlink initial BWP for a conventional type terminal indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB.

[0030] Optionally, performing downlink BWP switching based on BWP-related information obtained from the system information includes: when the BWP-related information obtained from SIB1 does not include a first downlink initial BWP indicating a downlink initial BWP dedicated to a specific type of terminal, switching the downlink BWP to the downlink initial BWP indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB for a conventional type of terminal.

[0031] A fourth aspect of this disclosure provides an initial BWP configuration apparatus, comprising: a transceiver module for transmitting BWP-related information to a terminal; wherein the BWP-related information includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal and / or first uplink initial BWP information indicating an uplink initial BWP dedicated to the specific type of terminal.

[0032] A fifth aspect embodiment of this disclosure provides an initial BWP configuration apparatus, comprising: a transceiver module, configured to acquire BWP-related information sent by a network device, wherein the BWP-related information includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal and / or first uplink initial BWP information indicating an uplink initial BWP dedicated to the specific type of terminal; and a processing module, configured to determine the uplink initial BWP and downlink initial BWP used by the specific type of terminal based on the BWP-related information.

[0033] A sixth aspect embodiment of this disclosure provides an initial BWP handover apparatus, comprising: a processing module configured to: perform BWP handover based on BWP-related information obtained from system information sent from a network device; wherein the system information includes a Master Information Block (MIB) and / or a System Information Block Type 1 (SIB1).

[0034] A seventh aspect embodiment of this disclosure provides a communication device, including: a transceiver; a memory; and a processor, respectively connected to the transceiver and the memory, configured to control the wireless signal transmission and reception of the transceiver by executing computer-executable instructions on the memory, and capable of implementing the initial BWP configuration method of the first aspect embodiment or the second aspect embodiment or the initial BWP switching method of the third aspect embodiment described above.

[0035] An eighth aspect of this disclosure provides a computer storage medium storing computer-executable instructions; when executed by a processor, the computer-executable instructions can implement the initial BWP configuration method of the first aspect embodiment or the second aspect embodiment, or the initial BWP switching method of the third aspect embodiment.

[0036] This disclosure provides an initial BWP configuration method and apparatus. The network device sends BWP-related information indicating the downlink initial BWP and / or uplink initial BWP of a specific type of terminal to the terminal, so that the specific type of terminal can determine the downlink initial BWP and uplink initial BWP based on the BWP-related information, thereby realizing the initial BWP configuration for the specific type of terminal.

[0037] Furthermore, this disclosure provides an initial BWP handover method and apparatus. If there is no RACH on the currently active BWP, uplink BWP handover and downlink BWP handover are performed based on BWP-related information obtained from the network device. If the BWP inactivity timer on the currently active BWP times out and the specific type of terminal is not configured with a default downlink BWP, downlink BWP handover is performed based on BWP-related information obtained from the network device, thereby enabling the specific type of terminal to achieve BWP handover.

[0038] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0039] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure; Figure 2 This is a flowchart illustrating an initial BWP configuration method according to an embodiment of the present disclosure; Figure 3 This is a flowchart illustrating an initial BWP configuration method according to an embodiment of the present disclosure; Figure 4 This is a flowchart illustrating an initial BWP configuration method according to an embodiment of the present disclosure; Figure 5 This is a flowchart illustrating an initial BWP switching method according to an embodiment of the present disclosure; Figure 6 This is a flowchart illustrating an initial BWP switching method according to an embodiment of the present disclosure; Figure 7 This is a flowchart illustrating an initial BWP switching method according to an embodiment of the present disclosure; Figure 8 This is a block diagram of an initial BWP configuration device according to an embodiment of the present disclosure; Figure 9 This is a block diagram of an initial BWP configuration device according to an embodiment of the present disclosure; Figure 10 This is a block diagram of an initial BWP switching device according to an embodiment of the present disclosure; Figure 11 This is a schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure; Figure 12 This is a schematic diagram of the structure of a chip provided in an embodiment of the present disclosure. Detailed Implementation

[0040] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting this disclosure.

[0041] To better understand the initial BWP configuration method and apparatus, and the initial BWP determination method and apparatus disclosed in the embodiments of this application, the communication system to which the embodiments of this application are applicable will be described first below.

[0042] Please see Figure 1 , Figure 1 This application provides a schematic diagram of the architecture of a communication system. The communication system may include, but is not limited to, a network device and a user device. Figure 1 The number and form of devices shown are for illustrative purposes only and do not constitute a limitation on the embodiments of this application. In actual applications, they may include two or more network devices and two or more user devices. Figure 1 The communication system shown is exemplified by a network device 101 and a user device 102.

[0043] It should be noted that the technical solutions of this application embodiment can be applied to various communication systems. For example, long term evolution (LTE) systems, 5th generation (5G) mobile communication systems, 5G new radio (NR) systems, or other future new mobile communication systems, etc.

[0044] The network device 101 in this embodiment is a network-side entity used for transmitting or receiving signals. For example, the network device 101 can be an evolved NodeB (eNB), a transmission reception point (TRP), a next-generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system. This application does not limit the specific technology or device form used in the network device. The network device provided in this embodiment can be composed of a central unit (CU) and a distributed unit (DU). The CU can also be called a control unit. Using a CU-DU structure allows the protocol layer of a network device, such as a base station, to be separated. Some protocol layer functions are centrally controlled by the CU, while the remaining or all protocol layer functions are distributed in the DU, which is centrally controlled by the CU.

[0045] In this application embodiment, the user equipment 102 is a user-side entity used for receiving or transmitting signals, such as a mobile phone. User equipment (UE) can also be called a terminal, mobile station (MS), mobile terminal (MT), etc. User equipment can be a car with communication capabilities, a smart car, a mobile phone, a wearable device, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, etc. The embodiments of this application do not limit the specific technology or device form used in the user equipment.

[0046] It is understood that the communication system described in the embodiments of this application is for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and does not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0047] The current 3GPP standard introduces a new terminal type: Reduced Capability (Redcap) terminals. For Redcap terminals, how to configure the initial BWP, and which BWP to switch to when a Redcap terminal needs to perform a BWP handover during a Random Access Channel (RACH) process, remain unresolved issues.

[0048] To this end, this disclosure proposes an initial BWP configuration method and apparatus, in which the network device sends BWP-related information indicating the downlink initial BWP and / or uplink initial BWP of a specific type of terminal (such as a Redcap type terminal) to the terminal, so that the specific type of terminal can determine the downlink initial BWP and uplink initial BWP based on the BWP-related information, thereby realizing the initial BWP configuration for the specific type of terminal.

[0049] Furthermore, this disclosure also provides an initial BWP handover method and apparatus. If there is no RACH on the currently active BWP, uplink BWP handover and downlink BWP handover are performed according to the BWP-related information obtained from the network device. If the BWP inactivity timer on the currently active BWP times out and the specific type of terminal is not configured with a default downlink BWP, downlink BWP handover is performed according to the BWP-related information obtained from the network device, thereby enabling the specific type of terminal to achieve BWP handover.

[0050] The initial BWP configuration method and apparatus, and the initial BWP switching method and apparatus provided in this application will be described in detail below with reference to the accompanying drawings.

[0051] Figure 2 A flowchart illustrating an initial BWP configuration method according to an embodiment of this disclosure is shown. Figure 2 As shown, the method can be executed by a network device and includes the following steps.

[0052] S201, BWP-related information is sent to the terminal, wherein the BWP-related information includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal with reduced capability and / or first uplink initial BWP information indicating an uplink initial BWP dedicated to a specific type of terminal.

[0053] In some embodiments, a specific type of terminal refers to a Redcap type terminal.

[0054] In some embodiments, BWP-related information is carried in System Information Block Type 1 (SIB1).

[0055] As one implementation, information element (IE) items, such as "DownlinkConfigCommonSIB-Redcap", are added to SIB1 for specific types of terminals.

[0056] As an example, the Broadcast Control Channel (BCCH) configuration for a specific type of terminal can be the same as the BCCH configuration for a general type of terminal; therefore, it is not necessary to include the BCCH configuration field in this IE item. As another example, the BCCH configuration field can be included in this IE item to configure the BCCH separately for a specific type of terminal.

[0057] As an example, the Physical Control Channel (PCCH) configuration for a specific type of terminal can be the same as the PCCH configuration for a general type of terminal; therefore, it is not necessary to include the PCCH configuration field in this IE item. As another example, the PCCH configuration field can be included in this IE item to configure the PCCH separately for a specific type of terminal.

[0058] In some embodiments, when the BWP-related information includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, the first downlink initial BWP information may have at least one of the following search spaces: a Random Access Response (RAR) search space, a paging search space, and other system message search spaces. As an example, the first downlink initial BWP information includes control resource set 0 (CORESET0), whereby at least one of the RAR search space, paging search space, and other system message search spaces can be configured.

[0059] In some embodiments, when the BWP-related information includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, the first downlink initial BWP information may have a RAR search space or a paging search space. As an example, this first downlink initial BWP information does not include control resource set 0 (CORESET0) and only configures the RAR search space. As another example, this first downlink initial BWP information does not include control resource set 0 (CORESET0) and only configures the paging search space.

[0060] In some embodiments, when the BWP-related information includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, the first downlink initial BWP information can be configured with multiple downlink initial BWPs, which may have a RAR search space or a paging search space. For example, two downlink initial BWPs can be configured, including a paging search space for listening to paging messages from a specific type of terminal.

[0061] In some embodiments, when the BWP-related information includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal and first uplink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, for asymmetric spectrum, the center frequency of the uplink initial BWP indicated by the first uplink initial BWP information is aligned with the center frequency of the downlink initial BWP indicated by the first downlink initial BWP information.

[0062] According to the initial BWP configuration method of this disclosure, the network device sends BWP-related information indicating the downlink initial BWP and / or uplink initial BWP of a specific type of terminal to the terminal, so that the specific type of terminal can determine the downlink initial BWP and uplink initial BWP based on the BWP-related information, thereby realizing the initial BWP configuration for the specific type of terminal.

[0063] Figure 3 A flowchart illustrating an initial BWP configuration method according to an embodiment of this disclosure is shown. Figure 3 As shown, this method can be executed by a specific type of terminal, which may refer to a Redcap type terminal, and the initial BWP configuration method may include the following steps.

[0064] S301, Obtain BWP-related information sent by the network device, wherein the BWP-related information includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal and / or first uplink initial BWP information indicating an uplink initial BWP dedicated to a specific type of terminal.

[0065] In some embodiments, step S301 includes obtaining BWP-related information from SIB1.

[0066] As one implementation, SIB1 includes an Information Element (IE) item "DownlinkConfigCommonSIB-Redcap" for a specific type of terminal.

[0067] As an example, this IE item includes a BCCH configuration field, which is used to configure the BCCH separately for a specific type of terminal. As another example, this IE item does not include a BCCH configuration field, which means that the BCCH configuration for a specific type of terminal can be the same as the BCCH configuration for a general type of terminal; therefore, the BCCH configuration for a general type of terminal can be reused.

[0068] As an example, this IE item includes a PCCH configuration field, which is used to configure the PCCH separately for a specific type of terminal. As another example, this IE item does not include a PCCH configuration field, which means that the PCCH configuration for a specific type of terminal can be the same as the PCCH configuration for a general type of terminal; therefore, the PCCH configuration for a general type of terminal can be reused.

[0069] In some embodiments, when the BWP-related information includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, the first downlink initial BWP information may have at least one of the following search spaces: a RAR search space, a paging search space, and other system message search spaces. As an example, the first downlink initial BWP information includes control resource set 0 (CORESET0), whereby at least one of the RAR search space, paging search space, and other system message search spaces can be configured.

[0070] In some embodiments, when the BWP-related information includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, the first downlink initial BWP information may have a RAR search space or a paging search space. As an example, this first downlink initial BWP information does not include control resource set 0 (CORESET0) and only configures the RAR search space. As another example, this first downlink initial BWP information does not include control resource set 0 (CORESET0) and only configures the paging search space.

[0071] In some embodiments, when the BWP-related information includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal and first uplink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, for asymmetric spectrum, the center frequency of the uplink initial BWP indicated by the first uplink initial BWP information is aligned with the center frequency of the downlink initial BWP indicated by the first downlink initial BWP information.

[0072] S302, determine the uplink initial BWP and downlink initial BWP used by a specific type of terminal based on BWP-related information.

[0073] After obtaining BWP-related information from network devices, a specific type of terminal can determine the uplink initial BWP and downlink initial BWP used by the specific type of terminal based on the BWP-related information.

[0074] According to the initial BWP configuration method of this disclosure, the network device sends BWP-related information indicating the downlink initial BWP and / or uplink initial BWP of a specific type of terminal to the terminal, so that the specific type of terminal can determine the downlink initial BWP and uplink initial BWP based on the BWP-related information, thereby realizing the initial BWP configuration for the specific type of terminal.

[0075] Figure 4 This illustration shows a flowchart of an initial BWP configuration method according to an embodiment of the present disclosure. This embodiment is based on... Figure 3 The embodiment shown can be executed by a specific type of terminal, which may refer to a Redcap type terminal, such as... Figure 4 As shown, the initial BWP configuration method may include the following steps.

[0076] S401, Obtain BWP-related information sent by the network device, wherein the BWP-related information includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal and / or first uplink initial BWP information indicating an uplink initial BWP dedicated to a specific type of terminal.

[0077] For a description and specific details of step S401 above, please refer to the relevant description and details of step S301 above.

[0078] S402, determine the uplink initial BWP and downlink initial BWP used by a specific type of terminal based on BWP-related information.

[0079] In some embodiments, step S402 may include any of the following steps.

[0080] S4021, when the BWP-related information includes the first downlink initial BWP information, the downlink initial BWP indicated by the first downlink initial BWP information is determined as the downlink initial BWP used by a specific type of terminal.

[0081] If the BWP-related information includes first downlink initial BWP information indicating a downlink initial BWP specifically for a particular type of terminal, then after obtaining the BWP-related information, the particular type of terminal can directly use the downlink initial BWP indicated by the first downlink initial BWP information as the downlink initial BWP used by the particular type of terminal.

[0082] S4022, when the BWP-related information does not include the first downlink initial BWP information, the downlink initial BWP indicated by the second downlink initial BWP information is determined as the downlink initial BWP used by a specific type of terminal, wherein the second downlink initial BWP information is included in the BWP-related information or main information block, and the second downlink initial BWP information indicates the downlink initial BWP used by a regular type of terminal.

[0083] If the BWP-related information does not include the first downlink initial BWP information indicating a downlink initial BWP specifically for a particular type of terminal, then the downlink initial BWP indicated in the BWP-related information or the Master Information Block (MIB) for a general type of terminal can be used as the downlink initial BWP for the specific type of terminal.

[0084] As an example, if the downlink initial BWP for a regular type of terminal, as indicated in the BWP information, meets the bandwidth requirements of a specific type of terminal, then the downlink initial BWP for the regular type of terminal can be used as the downlink initial BWP for the specific type of terminal.

[0085] As an example, if the initial downlink BWP for a regular type of terminal indicated in the BWP information does not meet the bandwidth requirements of a specific type of terminal, the initial downlink BWP for a regular type of terminal indicated in the MIB can be used as the initial downlink BWP for the specific type of terminal.

[0086] S4023, when the BWP-related information includes the first uplink initial BWP information, the uplink initial BWP indicated by the first uplink initial BWP information is determined as the uplink initial BWP used by a specific type of terminal.

[0087] If the BWP-related information includes first uplink initial BWP information indicating an uplink initial BWP dedicated to a specific type of terminal, then after obtaining the BWP-related information, the specific type of terminal can directly use the downlink initial BWP indicated by the first uplink initial BWP information as the downlink initial BWP used by the specific type of terminal.

[0088] S4024, when the BWP-related information does not include the first uplink initial BWP information, the uplink initial BWP indicated by the second uplink initial BWP information is determined as the uplink initial BWP used by a specific type of terminal, wherein the second downlink initial BWP information is included in the BWP-related information, and the second uplink initial BWP information indicates the uplink initial BWP used by a regular type of terminal.

[0089] If the BWP-related information does not include first uplink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, then the uplink initial BWP indicated in the BWP-related information for a regular type of terminal can be used as the uplink initial BWP for the specific type of terminal.

[0090] As an example, if the uplink initial BWP for a regular type of terminal, as indicated in the BWP information, meets the bandwidth requirements of a specific type of terminal, then the uplink initial BWP for the regular type of terminal can be used as the uplink initial BWP for the specific type of terminal.

[0091] As an example, for a Time Division Duplexing (TDD) system, if the center frequency of the uplink initial BWP for a regular type of terminal indicated in the BWP information is aligned with the center frequency of the downlink initial BWP for a specific type of terminal indicated in the BWP information and meets the bandwidth requirements of the specific type of terminal, then the uplink initial BWP for the regular type of terminal can be used as the uplink initial BWP for the specific type of terminal.

[0092] According to the initial BWP configuration method of this disclosure, the network device sends BWP-related information indicating the downlink initial BWP and / or uplink initial BWP of a specific type of terminal to the terminal, so that the specific type of terminal can determine the downlink initial BWP and uplink initial BWP based on the BWP-related information, thereby realizing the initial BWP configuration for the specific type of terminal.

[0093] Figure 5 A flowchart illustrating an initial BWP handover method according to an embodiment of this disclosure is shown. Figure 5 As shown, the method can be executed by a specific type of terminal in a connected state, such as a reduced capability (Redcap) type terminal, and includes the following steps.

[0094] S501, perform BWP handover based on BWP-related information obtained from system information sent by the network device, wherein the system message includes Master Information Block (MIB) and / or System Information Block Type 1 (SIB1).

[0095] In this embodiment, a specific type of terminal obtains BWP-related information from the MIB and / or SIB1 sent by the network device. This BWP-related information can be used to instruct the specific type of terminal to perform a BWP handover to the target BWP. Thus, the specific type of terminal can perform a BWP handover based on this BWP-related information.

[0096] According to the initial BWP handover method of this disclosure, BWP handover is performed based on BWP-related information obtained from the MIB or SIB1 of the network device, thereby enabling BWP handover for a specific type of terminal.

[0097] Figure 6 A flowchart illustrating an initial BWP handover method according to an embodiment of the present disclosure is shown. This embodiment is based on... Figure 5 The embodiment shown can be executed by a specific type of terminal in a connected state, such as... Figure 6 As shown, the initial BWP switching method may include any of the following steps.

[0098] S601, if there is no Random Access Channel (RACH) on the currently active BWP, perform uplink BWP handover and downlink BWP handover according to the BWP-related information obtained from the system information sent by the network device. The system message includes the Master Information Block (MIB) and / or System Information Block Type 1 (SIB1).

[0099] If there is no RACH on the currently active BWP, then a specific type of terminal needs to perform uplink BWP handover and downlink BWP handover. In this embodiment, the specific type of terminal can perform uplink BWP handover and downlink BWP handover based on the BWP-related information obtained from the MIB and / or SIB1.

[0100] S602, if the BWP inactive timer on the currently active BWP times out and a specific type of terminal is not configured with a default downlink BWP, perform downlink BWP switching based on the BWP-related information obtained from the system information sent by the network device, wherein the system message includes MIB and / or SIB1.

[0101] If the inactive timer for the currently active BWP times out and the specific type of terminal is not configured with a default downlink BWP, then the specific type of terminal needs to perform a downlink BWP handover. In this embodiment, the specific type of terminal can perform the downlink BWP handover based on the BWP-related information obtained from the MIB and / or SIB1.

[0102] According to the initial BWP handover method of this disclosure, if there is no RACH on the currently active BWP, uplink BWP handover and downlink BWP handover are performed based on the BWP-related information obtained from the network device; if the BWP inactivity timer on the currently active BWP times out and the specific type of terminal is not configured with a default downlink BWP, downlink BWP handover is performed based on the BWP-related information obtained from the network device, thereby enabling the specific type of terminal to achieve BWP handover.

[0103] Figure 7 A flowchart illustrating an initial BWP handover method according to an embodiment of the present disclosure is shown. This embodiment is based on... Figure 6 The embodiment shown can be executed by a specific type of terminal in a connected state, such as... Figure 7 As shown, the initial BWP switching method may include the following steps.

[0104] S701, if there is no Random Access Channel (RACH) on the currently active BWP, perform uplink BWP handover and downlink BWP handover according to the BWP-related information obtained from the system information sent by the network device. The system message includes the Master Information Block (MIB) and / or System Information Block Type 1 (SIB1).

[0105] In some embodiments, step S701 above includes any of the following steps.

[0106] During uplink BWP handover, the uplink BWP is switched to an initial uplink BWP with random access resources configured for a specific type of terminal. Steps S7011-S7013 illustrate the details of uplink BWP handover, meaning that uplink BWP handover can be achieved through any one of these steps.

[0107] S7011, when the BWP-related information obtained from SIB1 includes first uplink initial BWP information indicating an uplink initial BWP dedicated to a specific type of terminal, the uplink BWP is switched to the uplink initial BWP indicated by the first uplink initial BWP information.

[0108] In this embodiment, if the BWP-related information obtained from SIB1 indicates an uplink initial BWP dedicated to a specific type of terminal, all terminals of that specific type can directly switch their uplink BWP to the dedicated uplink initial BWP indicated by the BWP-related information. In this embodiment, it is assumed that the uplink initial BWP indicated by the BWP-related information obtained from SIB1 has random access resources configured for the specific type of terminal.

[0109] S7012, when the BWP-related information obtained from SIB1 includes first uplink initial BWP information indicating an uplink initial BWP dedicated to a specific type of terminal, and the uplink initial BWP indicated by the first uplink initial BWP information has random access resources configured for the specific type of terminal, the uplink BWP is switched to the uplink initial BWP indicated by the first uplink initial BWP information.

[0110] When a specific type of terminal performs an uplink BWP handover, it can switch its uplink BWP to an uplink BWP with random access resources specifically configured for that specific type of terminal. Therefore, if the BWP-related information obtained from SIB1 indicates an initial uplink BWP dedicated to a specific type of terminal, it can be determined whether this initial uplink BWP has random access resources configured for that specific type of terminal. If so, the specific type of terminal will switch its uplink BWP to the initial uplink BWP indicated by the BWP-related information.

[0111] In one embodiment, assuming the network is configured with multiple uplink BWPs for random access resources configured for specific types of terminals, the terminal can select one according to rules, such as selecting one randomly. If only one is configured, then that one can be used.

[0112] S7013, when the BWP-related information obtained from SIB1 includes second uplink initial BWP information indicating an uplink initial BWP for a regular type terminal but does not include first uplink initial BWP information indicating an uplink initial BWP dedicated to a specific type terminal, or when the BWP-related information obtained from SIB1 includes first uplink initial BWP information and second uplink initial BWP information but the uplink initial BWP indicated by the first uplink initial BWP information does not have random access resources configured for the specific type terminal, the uplink BWP is switched to the uplink initial BWP indicated by the first uplink initial BWP information.

[0113] In this embodiment, if the BWP-related information obtained from SIB1 does not indicate an uplink initial BWP dedicated to a specific type of terminal but only indicates an uplink initial BWP for a regular type of terminal, then the specific type of terminal can switch its uplink BWP to the uplink initial BWP for a regular type of terminal indicated by the BWP-related information.

[0114] Alternatively, when a specific type of terminal performs an uplink BWP handover, it can switch its uplink BWP to an uplink BWP with random access resources specifically configured for that specific type of terminal. Therefore, if the BWP-related information obtained from SIB1 indicates both an initial uplink BWP for a regular type of terminal and an initial uplink BWP dedicated to a specific type of terminal, it can be determined whether the initial uplink BWP dedicated to the specific type of terminal indicated by the BWP-related information has random access resources configured for that specific type of terminal. If not, the specific type of terminal will switch its uplink BWP to the initial uplink BWP dedicated to the specific type of terminal indicated by the BWP-related information.

[0115] Preferably, when performing uplink BWP handover, if the BWP-related information obtained from SIB1 indicates an uplink initial BWP dedicated to a specific type of terminal, then the specific type of terminal will switch its uplink BWP to that dedicated uplink initial BWP; otherwise, the specific type of terminal will switch its uplink BWP to the uplink initial BWP used for regular type terminals. A pseudocode example is as follows: For specific terminal types: If SIB1 indicates the initial BWP for uplink of a specific type of terminal, Then the uplink BWP will be switched to the indicated uplink initial BWP for the specific type of terminal; Else Then the uplink BWP will be switched to the uplink initial BWP indicated by SIB1 for regular type terminals. During downlink BWP handover, the downlink BWP is switched to the initial downlink BWP that has a RAR search space for the specific type of terminal. The following steps S7014-S7018 illustrate the details of downlink BWP handover, i.e., downlink BWP handover can be achieved through any one of the steps S7014-S7018.

[0116] S7014, switch the downlink BWP to the downlink initial BWP with the RAR search space of a specific user.

[0117] Specifically, step S7014 can be implemented through any of the following steps.

[0118] S70141, when the BWP-related information obtained from SIB1 includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, and the downlink initial BWP indicated by the first downlink initial BWP information has a RAR search space, the downlink BWP is switched to the downlink initial BWP indicated by the first downlink initial BWP information.

[0119] In this embodiment, if the BWP-related information obtained from SIB1 indicates a downlink initial BWP with RAR search space specifically for a particular type of terminal, regardless of whether the BWP-related information obtained from SIB1 indicates a downlink initial BWP for a regular type of terminal, the particular type of terminal can directly switch its downlink BWP to the downlink initial BWP with RAR search space indicated by the BWP-related information for the particular type of terminal.

[0120] In one embodiment, assuming the network configures multiple downlink initial BWPs with RAR search spaces for a specific type of terminal, the terminal can select one according to rules. For example, it can select a downlink initial BWP paired with an uplink initial BWP configured with random access resources for the specific type of terminal. If only one is configured, then that one is sufficient. As a preferred embodiment, if the network configures a separate uplink initial BWP for a specific type of terminal, and that uplink initial BWP is configured with random access resources, then the network will also configure a separate downlink initial BWP for the specific type of terminal, which includes a RAR search space.

[0121] S70142, when the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a general-type terminal and first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, and the downlink initial BWP indicated by the first downlink initial BWP information does not have a RAR search space, and the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1 meets the preset bandwidth requirement, the downlink BWP is switched to the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1. Meeting the preset bandwidth requirement means that the bandwidth will not exceed the maximum bandwidth supported by the specific terminal.

[0122] In this embodiment, if the BWP-related information obtained from SIB1 indicates a downlink initial BWP dedicated to a specific type of terminal but without a RAR search space, and indicates a downlink initial BWP for a regular type of terminal that meets the preset bandwidth requirements of the specific type of terminal, then the specific type of terminal can switch its downlink BWP to the downlink initial BWP for the regular type of terminal indicated by the BWP-related information.

[0123] S70143, when the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a regular type terminal and first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type terminal, and the downlink initial BWP indicated by the first downlink initial BWP information does not have a RAR search space, and the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1 does not meet the preset bandwidth requirement, the downlink BWP is switched to the downlink initial BWP for a regular type terminal indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB.

[0124] In this embodiment, if the BWP-related information obtained from SIB1 indicates a downlink initial BWP dedicated to a specific type of terminal but without a RAR search space, and indicates a downlink initial BWP for a regular type of terminal but not meeting the preset bandwidth requirements of the specific type of terminal, then the specific type of terminal can switch its downlink BWP to the downlink initial BWP for a regular type of terminal indicated by the BWP-related information obtained from MIB.

[0125] S70144, when the BWP-related information obtained from SIB1 does not include second downlink initial BWP information indicating a downlink initial BWP for a regular type terminal, but includes first downlink initial BWP information indicating a downlink initial BWP specifically for a particular type terminal, and the downlink initial BWP indicated by the first downlink initial BWP information does not have a RAR search space, the downlink BWP is switched to the downlink initial BWP for a regular type terminal indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB.

[0126] In this embodiment, if the BWP-related information obtained from SIB1 indicates a downlink initial BWP that is dedicated to a specific type of terminal but does not have a RAR search space, but does not indicate a downlink initial BWP for a regular type of terminal, the specific type of terminal can switch its downlink BWP to the downlink initial BWP for a regular type of terminal indicated by the BWP-related information obtained from MIB.

[0127] S70145, when the BWP-related information obtained from SIB1 includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, and the downlink initial BWP indicated by the first downlink initial BWP information does not have a RAR search space, the downlink BWP is switched to the downlink initial BWP indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB for a regular type of terminal.

[0128] In this embodiment, if the BWP-related information obtained from SIB1 indicates a downlink initial BWP that is dedicated to a specific type of terminal but does not have a RAR search space, the specific type of terminal can switch its downlink BWP to the downlink initial BWP indicated by the BWP-related information obtained from MIB for the regular type of terminal, regardless of whether the BWP-related information obtained from SIB1 indicates a downlink initial BWP for the regular type of terminal.

[0129] S7015, when the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a regular type of terminal but does not include first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, and the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1 meets the preset bandwidth requirement, the downlink BWP is switched to the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1.

[0130] In this embodiment, if the BWP-related information obtained from SIB1 only indicates the downlink initial BWP for regular type terminals and meets the preset bandwidth requirements of specific type terminals, but does not indicate the downlink initial BWP dedicated to specific type terminals, the specific type terminal can switch the downlink BWP to the downlink initial BWP for regular type terminals indicated by the BWP-related information obtained from SIB1.

[0131] S7016, when the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a regular type terminal but does not include first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type terminal, and the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1 does not meet the preset bandwidth requirement, the downlink BWP is switched to the downlink initial BWP indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB for a regular type terminal.

[0132] In this embodiment, if the BWP-related information obtained from SIB1 only indicates the downlink initial BWP for regular type terminals but does not meet the preset bandwidth requirements of specific type terminals, but does not indicate the downlink initial BWP dedicated to specific type terminals, the specific type terminal can switch the downlink BWP to the downlink initial BWP for regular type terminals indicated by the BWP-related information obtained from MIB.

[0133] S7017, when the BWP-related information obtained from SIB1 does not include second downlink initial BWP information indicating a downlink initial BWP for a regular type terminal and first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type terminal, the downlink BWP is switched to the downlink initial BWP for a regular type terminal indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB.

[0134] In this embodiment, if the BWP-related information obtained from SIB1 does not indicate a downlink initial BWP dedicated to a specific type of terminal, nor does it indicate a downlink initial BWP for a regular type of terminal, the specific type of terminal can switch its downlink BWP to the downlink initial BWP for a regular type of terminal indicated by the BWP-related information obtained from MIB.

[0135] S7018, when the BWP-related information obtained from SIB1 does not include first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, the downlink BWP is switched to the downlink initial BWP for a regular type of terminal indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB.

[0136] In this embodiment, if the BWP-related information obtained from SIB1 does not indicate a downlink initial BWP dedicated to a specific type of terminal, the specific type of terminal can switch its downlink BWP to the downlink initial BWP indicated by the BWP-related information obtained from MIB for a regular type of terminal, regardless of whether the BWP-related information obtained from SIB1 indicates a downlink initial BWP for a regular type of terminal.

[0137] In a preferred embodiment, when performing a downlink BWP handover, if the BWP-related information obtained from SIB1 indicates a downlink initial BWP dedicated to a specific type of terminal and that the downlink initial BWP is configured with a RAR search space, then the specific type of terminal will switch its downlink BWP to that dedicated downlink initial BWP; otherwise, if the BWP-related information obtained from SIB1 indicates a downlink initial BWP for a general type of terminal and that the downlink initial BWP meets the preset bandwidth requirements of the specific type of terminal, then the specific type of terminal will switch its downlink BWP to the downlink initial BWP for a general type of terminal indicated by the BWP-related information obtained from SIB1; otherwise, the specific type of terminal will switch its downlink BWP to the downlink initial BWP for a general type of terminal indicated by the BWP-related information obtained from MIB. A pseudocode example is shown below: For specific terminal types: If SIB1 indicates a downlink initial BWP for a specific type of terminal and that downlink initial BWP for the specific type of terminal has a RAR search space, Then the downlink BWP will be switched to the indicated downlink initial BWP for the specific type of terminal; Else if SIB1 indicates the initial downlink BWP for a regular type of terminal and the initial downlink BWP for a regular type of terminal meets the bandwidth requirements of a specific type of terminal, Then the downlink BWP will be switched to the indicated downlink initial BWP for regular type terminals; Else Then the downlink BWP will be switched to the initial downlink BWP indicated by the MIB. As another preferred implementation, when performing a downlink BWP handover, if the BWP-related information obtained from SIB1 indicates a downlink initial BWP dedicated to a specific type of terminal and that the downlink initial BWP is configured with a RAR search space, then the specific type of terminal will switch its downlink BWP to the downlink initial BWP dedicated to that specific type of terminal; otherwise, the specific type of terminal will switch its downlink BWP to the downlink initial BWP for general type terminals indicated by the BWP-related information obtained from MIB. A pseudocode example is as follows: For specific terminal types: If SIB1 indicates a downlink initial BWP for a specific type of terminal and that downlink initial BWP for the specific type of terminal has a RAR search space, Then the downlink BWP will be switched to the indicated downlink initial BWP for the specific type of terminal; Else Then the downlink BWP will be switched to the initial downlink BWP indicated by the MIB. S702, if the BWP inactive timer on the currently active BWP times out and a specific type of terminal is not configured with a default downlink BWP, perform downlink BWP switching based on the BWP-related information obtained from the system information sent by the network device, wherein the system message includes MIB and / or SIB1.

[0138] In some embodiments, step S702 above includes any of the following steps.

[0139] S7021, when the BWP-related information obtained from SIB1 includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, the downlink BWP is switched to the downlink initial BWP indicated by the first downlink initial BWP information.

[0140] In one embodiment, assuming the network is configured with multiple downlink initial BWPs for a specific type of terminal, the terminal can select one according to rules, such as random selection or selection based on priority. For example, if both a downlink initial BWP configured with RAR search space and a downlink initial BWP configured with paging search space exist, the downlink initial BWP configured with RAR search space is preferred. If only one is configured, then that one is sufficient.

[0141] In this embodiment, if the BWP-related information obtained from SIB1 indicates a downlink initial BWP dedicated to a specific type of terminal, regardless of whether the BWP-related information obtained from SIB1 indicates a downlink initial BWP for a regular type of terminal, the specific type of terminal can directly switch its downlink BWP to the downlink initial BWP indicated by the BWP-related information for the specific type of terminal.

[0142] S7022, when the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a regular type of terminal but does not include first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, and the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1 meets the preset bandwidth requirement, the downlink BWP is switched to the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1.

[0143] In this embodiment, if the BWP-related information obtained from SIB1 only indicates the downlink initial BWP for a regular type terminal and meets the preset bandwidth requirements of a specific type terminal, but does not indicate the downlink initial BWP specifically for a specific type terminal, the specific type terminal can switch the downlink BWP to the downlink initial BWP for a regular type terminal indicated by the BWP-related information obtained from SIB1.

[0144] S7023, when the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a regular type terminal but does not include first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type terminal, and the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1 does not meet the preset bandwidth requirement, the downlink BWP is switched to the downlink initial BWP for a regular type terminal indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB.

[0145] In this embodiment, if the BWP-related information obtained from SIB1 only indicates the downlink initial BWP for a regular type terminal but does not meet the preset bandwidth requirements of a specific type terminal, but does not indicate the downlink initial BWP dedicated to a specific type terminal, the specific type terminal can switch the downlink BWP to the downlink initial BWP for a regular type terminal indicated by the BWP-related information obtained from MIB.

[0146] S7024, when the BWP-related information obtained from SIB1 does not include second downlink initial BWP information indicating a downlink initial BWP for a regular type terminal and first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type terminal, the downlink BWP is switched to the downlink initial BWP for a regular type terminal indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB.

[0147] In this embodiment, if the BWP-related information obtained from SIB1 does not indicate a downlink initial BWP dedicated to a specific type of terminal, nor does it indicate a downlink initial BWP for a regular type of terminal, the specific type of terminal can directly switch its downlink BWP to the downlink initial BWP for a regular type of terminal indicated by the BWP-related information obtained from MIB.

[0148] S7025, when the BWP-related information obtained from SIB1 does not include first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, the downlink BWP is switched to the downlink initial BWP for a regular type of terminal indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB.

[0149] In this embodiment, if the BWP-related information obtained from SIB1 does not indicate a downlink initial BWP dedicated to a specific type of terminal, regardless of whether the BWP-related information obtained from SIB1 indicates a downlink initial BWP for a regular type of terminal, the specific type of terminal can directly switch its downlink BWP to the downlink initial BWP for a regular type of terminal indicated by the BWP-related information obtained from MIB.

[0150] In a preferred embodiment, when performing a downlink BWP handover, if the BWP-related information obtained from SIB1 indicates a downlink initial BWP dedicated to a specific type of terminal, then the specific type of terminal will switch its downlink BWP to that dedicated downlink initial BWP; otherwise, if the BWP-related information obtained from SIB1 indicates a downlink initial BWP for a general type of terminal and that downlink initial BWP meets the preset bandwidth requirements of the specific type of terminal, then the specific type of terminal will switch its downlink BWP to the downlink initial BWP for a general type of terminal indicated by the BWP-related information obtained from SIB1; otherwise, the specific type of terminal will switch its downlink BWP to the downlink initial BWP for a general type of terminal indicated by the BWP-related information obtained from MIB. A pseudocode example is shown below: For specific terminal types (if the inactive timer on the currently active BWP times out and it is not configured with a default downlink initial BWP): If SIB1 indicates the downlink initial BWP for a specific type of terminal, Then the downlink BWP will be switched to the indicated downlink initial BWP for the specific type of terminal; Else if SIB1 indicates the initial downlink BWP for a regular type of terminal and the initial downlink BWP for a regular type of terminal meets the bandwidth requirements of a specific type of terminal, Then the downlink BWP will be switched to the indicated downlink initial BWP for regular type terminals; Else Then the downlink BWP will be switched to the initial downlink BWP indicated by the MIB. As another preferred implementation, when performing a downlink BWP handover, if the BWP-related information obtained from SIB1 indicates a downlink initial BWP dedicated to a specific type of terminal, then the specific type of terminal will switch its downlink BWP to that dedicated downlink initial BWP; otherwise, the specific type of terminal will switch its downlink BWP to the downlink initial BWP for general type terminals indicated by the BWP-related information obtained from MIB. A pseudocode example is as follows: For specific terminal types (if the inactive timer on the currently active BWP times out and it is not configured with a default downlink initial BWP): If SIB1 indicates the downlink initial BWP for a specific type of terminal, Then the downlink BWP will be switched to the indicated downlink initial BWP for the specific type of terminal; Else Then the downlink BWP will be switched to the initial downlink BWP indicated by the MIB. According to the initial BWP handover method of this disclosure, if there is no RACH on the currently active BWP, uplink BWP handover and downlink BWP handover are performed based on the BWP-related information obtained from the network device; if the BWP inactivity timer on the currently active BWP times out and the specific type of terminal is not configured with a default downlink BWP, downlink BWP handover is performed based on the BWP-related information obtained from the network device, thereby enabling the specific type of terminal to achieve BWP handover.

[0151] As an implementation logic: The methods provided in the embodiments of this application above have been described from the perspectives of network devices and user equipment, respectively. To implement the functions of the methods provided in the embodiments of this application above, the network device and user equipment may include hardware structures and software modules, implementing the above functions in the form of hardware structures, software modules, or a combination of hardware structures and software modules. One of the above functions can be executed in the form of hardware structures, software modules, or a combination of hardware structures and software modules. Corresponding to the initial BWP configuration methods provided in the above embodiments, this disclosure also provides an initial BWP configuration device. Since the initial BWP configuration device provided in this disclosure corresponds to the initial BWP configuration methods provided in the above embodiments, the implementation of the initial BWP configuration methods is also applicable to the initial BWP configuration device provided in this embodiment, and will not be described in detail in this embodiment.

[0152] Figure 8 This is a schematic diagram of the structure of an initial BWP configuration device 800 provided in an embodiment of the present disclosure.

[0153] like Figure 8 As shown, the device 800 may include a transceiver module 801.

[0154] The transceiver module 801 is used to send BWP-related information to the terminal. The BWP-related information includes first downlink initial BWP information indicating a downlink initial BWP specific to a particular type of terminal and / or first uplink initial BWP information indicating an uplink initial BWP specific to the particular type of terminal.

[0155] According to the initial BWP configuration apparatus of this disclosure, the network device sends BWP-related information indicating the downlink initial BWP and / or uplink initial BWP of a specific type of terminal to the terminal, so that the specific terminal can determine the downlink initial BWP and uplink initial BWP based on the BWP-related information, thereby realizing the initial BWP configuration for the specific type of terminal.

[0156] In some embodiments, for asymmetric spectrum, the center frequency of the uplink initial BWP indicated by the first uplink initial BWP information is aligned with the center frequency of the downlink initial BWP indicated by the first downlink initial BWP information.

[0157] In some embodiments, the first downlink initial BWP information has at least one of the following search spaces: RAR search space, paging search space, and other system message search spaces.

[0158] In some embodiments, the first downlink initial BWP information has only a RAR search space or a paging search space.

[0159] In some embodiments, the BWP-related information is carried in System Information Block Type 1 (SIB1).

[0160] Figure 9 This is a schematic diagram of the structure of an initial BWP configuration device 900 provided in an embodiment of the present disclosure.

[0161] like Figure 9 As shown, the device 900 may include a transceiver module 901 and a processing module 902.

[0162] The transceiver module 901 is used to acquire BWP-related information sent by the network device, wherein the BWP-related information includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal and / or first uplink initial BWP information indicating an uplink initial BWP dedicated to the specific type of terminal.

[0163] The processing module 902 is used to determine the uplink initial BWP and downlink initial BWP used by the specific type of terminal based on the BWP related information.

[0164] According to the initial BWP configuration apparatus of this disclosure, the network device sends BWP-related information indicating the downlink initial BWP and / or uplink initial BWP of a specific type of terminal to the terminal, so that the specific terminal can determine the downlink initial BWP and uplink initial BWP based on the BWP-related information, thereby realizing the initial BWP configuration for the specific type of terminal.

[0165] In some embodiments, the processing module 902 is configured to: when the BWP-related information includes the first downlink initial BWP information, determine the downlink initial BWP indicated by the first downlink initial BWP information as the downlink initial BWP used by the specific type of terminal; when the BWP-related information does not include the first downlink initial BWP information, determine the downlink initial BWP indicated by the second downlink initial BWP information as the downlink initial BWP used by the specific type of terminal, wherein the second downlink initial BWP information is included in the BWP-related information or the main information block (MIB), and the second downlink initial BWP information indicates a downlink initial BWP used for a conventional type of terminal.

[0166] In some embodiments, the processing module 902 is configured to: when the BWP-related information includes the first uplink initial BWP information, determine the uplink initial BWP indicated by the first uplink initial BWP information as the uplink initial BWP used by the specific type of terminal; when the BWP-related information does not include the first uplink initial BWP information, determine the uplink initial BWP indicated by the second uplink initial BWP information as the uplink initial BWP used by the specific type of terminal, wherein the second uplink initial BWP information is included in the BWP-related information, and the second uplink initial BWP information indicates an uplink initial BWP used for a regular type of terminal.

[0167] In some embodiments, the transceiver module 901 is used to obtain information related to the BWP from System Information Block Type 1 (SIB1).

[0168] Corresponding to the initial BWP switching methods provided in the above embodiments, this disclosure also provides an initial BWP switching device. Since the initial BWP switching device provided in this disclosure corresponds to the initial BWP switching methods provided in the above embodiments, the implementation of the initial BWP switching methods is also applicable to the initial BWP switching device provided in this embodiment, and will not be described in detail in this embodiment.

[0169] Figure 10 This is a schematic diagram of the structure of an initial BWP switching device 1000 provided in an embodiment of this disclosure.

[0170] like Figure 10 As shown, the device 1000 may include a processing module 1001.

[0171] The processing module 1001 can be used to perform BWP handover based on BWP-related information obtained from system information sent from the network device; wherein, the system message includes Master Information Block (MIB) and / or System Information Block Type 1 (SIB1).

[0172] According to the initial BWP handover apparatus of the present disclosure, BWP handover is performed based on BWP-related information obtained from the MIB and / or SIB1 of the network device, thereby enabling BWP handover for a specific type of terminal.

[0173] In some embodiments, the processing module 1001 is configured to: if there is no Random Access Channel (RACH) on the currently active BWP, perform uplink BWP handover and downlink BWP handover according to the BWP-related information obtained from the system information; if the BWP inactivity timer on the currently active BWP times out and the specific type of terminal is not configured with a default downlink BWP, perform downlink BWP handover according to the BWP-related information obtained from the system information.

[0174] In some embodiments, the processing module 1001 is configured to: when the BWP-related information obtained from SIB1 includes first uplink initial BWP information indicating an uplink initial BWP dedicated to the specific type of terminal, switch the uplink BWP to the uplink initial BWP indicated by the first uplink initial BWP information.

[0175] In some embodiments, when the BWP-related information obtained from SIB1 includes first uplink initial BWP information indicating an uplink initial BWP dedicated to the specific type of terminal and the uplink initial BWP indicated by the first uplink initial BWP information has random access resources configured for the specific type of terminal, the uplink BWP is switched to the uplink initial BWP indicated by the first uplink initial BWP information.

[0176] In some embodiments, when the BWP-related information obtained from SIB1 includes second uplink initial BWP information indicating an uplink initial BWP for a regular type terminal but does not include first uplink initial BWP information indicating an uplink initial BWP dedicated to the specific type terminal, or when the BWP-related information obtained from SIB1 includes both the first uplink initial BWP information and the second uplink initial BWP information but the uplink initial BWP indicated by the first uplink initial BWP information does not have random access resources configured for the specific type terminal, the uplink BWP is switched to the uplink initial BWP indicated by the second uplink initial BWP information.

[0177] In some embodiments, the processing module 1001 is configured to: switch the downlink BWP to the downlink initial BWP of the RAR search space with a specific type of terminal.

[0178] In some embodiments, the processing module 1001 is configured to: when the BWP-related information obtained from SIB1 includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, and the downlink initial BWP indicated by the first downlink initial BWP information has a RAR search space, switch the downlink BWP to the downlink initial BWP indicated by the first downlink initial BWP information.

[0179] In some embodiments, the processing module 1001 is configured to: when the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a regular type of terminal and first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, wherein the downlink initial BWP indicated by the first downlink initial BWP information does not have a RAR search space, and the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1 meets a preset bandwidth requirement, switch the downlink BWP to the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1.

[0180] In some embodiments, the processing module 1001 is configured to: when the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a regular type terminal and first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type terminal, wherein the downlink initial BWP indicated by the first downlink initial BWP information does not have a RAR search space, and the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1 does not meet a preset bandwidth requirement, switch the downlink BWP to the downlink initial BWP for a regular type terminal indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB.

[0181] In some embodiments, the processing module 1001 is configured to: when the BWP-related information obtained from SIB1 does not include second downlink initial BWP information indicating a downlink initial BWP for a conventional type terminal but includes first downlink initial BWP information indicating a downlink initial BWP specifically for a particular type terminal, and the downlink initial BWP indicated by the first downlink initial BWP information does not have a RAR search space, switch the downlink BWP to the downlink initial BWP for a conventional type terminal indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB.

[0182] In some embodiments, the processing module 1001 is configured to: when the BWP-related information obtained from SIB1 includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, and the downlink initial BWP indicated by the first downlink initial BWP information does not have a RAR search space, switch the downlink BWP to the downlink initial BWP indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB for a conventional type of terminal.

[0183] In some embodiments, the processing module 1001 is configured to: when the BWP-related information obtained from SIB1 includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, switch the downlink BWP to the downlink initial BWP indicated by the first downlink initial BWP information.

[0184] In some embodiments, the processing module 1001 is configured to: when the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a regular type of terminal but does not include first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, and the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1 meets a preset bandwidth requirement, switch the downlink BWP to the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1.

[0185] In some embodiments, the processing module 1001 is configured to: when the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a regular type terminal but does not include first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type terminal, and the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1 does not meet the preset bandwidth requirement, switch the downlink BWP to the downlink initial BWP indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB for a regular type terminal.

[0186] In some embodiments, the processing module 1001 is configured to: when the BWP-related information obtained from SIB1 does not include second downlink initial BWP information indicating a downlink initial BWP for a conventional type terminal and first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type terminal, switch the downlink BWP to the downlink initial BWP indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB for a conventional type terminal.

[0187] In some embodiments, the processing module 1001 is configured to: when the BWP-related information obtained from SIB1 does not include a first downlink initial BWP indicating a downlink initial BWP dedicated to a specific type of terminal, switch the downlink BWP to the downlink initial BWP indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB for a regular type of terminal.

[0188] Please see Figure 11 , Figure 11 This is a schematic diagram of the structure of a communication device 1100 provided in an embodiment of this application. The communication device 1100 can be a network device, a user device, a chip, chip system, or processor that supports the network device in implementing the above methods, or a chip, chip system, or processor that supports the user device in implementing the above methods. This device can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0189] The communication device 1100 may include one or more processors 1101. The processor 1101 may be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control the communication device (e.g., base station, baseband chip, terminal equipment, terminal equipment chip, DU or CU, etc.), execute computer programs, and process data from the computer programs.

[0190] Optionally, the communication device 1100 may further include one or more memories 1102, which may store a computer program 1104. The processor 1101 executes the computer program 1104 to cause the communication device 1100 to perform the method described in the above method embodiments. Optionally, the memory 1102 may also store data. The communication device 1100 and the memory 1102 may be provided separately or integrated together.

[0191] Optionally, the communication device 1100 may also include a transceiver 1105 and an antenna 1106. The transceiver 1105 may be referred to as a transceiver unit, transceiver, or transceiver circuit, etc., and is used to implement the transmission and reception functions. The transceiver 1105 may include a receiver and a transmitter. The receiver may be referred to as a receiver or receiving circuit, etc., and is used to implement the receiving function; the transmitter may be referred to as a transmitter or transmitting circuit, etc., and is used to implement the transmitting function.

[0192] Optionally, the communication device 1100 may further include one or more interface circuits 1107. The interface circuits 1107 are used to receive code instructions and transmit them to the processor 1101. The processor 1101 executes the code instructions to cause the communication device 1100 to perform the methods described in the above method embodiments.

[0193] Communication device 1100 is user equipment: processor 1101 is used to execute Figure 3 Step S302 in Figure 4 Step S402 (including S4021-S4024) Figure 5 Steps S501-S502 in the process Figure 6 Steps S601 (including S6011-S6016)-S602 (including S6021-S6024) are performed in the transceiver 1105. Figure 3 Step S301 in Figure 4 Step S401 in the process.

[0194] Communication device 1100 is a network device: transceiver 1105 is used to perform... Figure 2 Step S201.

[0195] In one implementation, the processor 1101 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing receiving and transmitting functions may be separate or integrated. The aforementioned transceiver circuit, interface, or interface circuit can be used for reading and writing code / data, or it can be used for transmitting or relaying signals.

[0196] In one implementation, processor 1101 may store computer program 1103, which runs on processor 1101 and causes communication device 1100 to execute the methods described in the above method embodiments. Computer program 1103 may be embedded in processor 1101, in which case processor 1101 may be implemented in hardware.

[0197] In one implementation, the communication device 1100 may include circuitry capable of performing the functions of transmitting, receiving, or communicating as described in the foregoing method embodiments. The processor and transceiver described in this application can be implemented on integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed-signal ICs, application-specific integrated circuits (ASICs), printed circuit boards (PCBs), electronic devices, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductors (CMOS), n-metal-oxide-semiconductor (NMOS), positive-channel metal oxide semiconductors (PMOS), bipolar junction transistors (BJTs), bipolar CMOS (BiCMOS), silicon-germanium (SiGe), gallium arsenide (GaAs), etc.

[0198] The communication device described in the above embodiments may be a network device or a user equipment, but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device may vary. Figure 11 The communication device may be a standalone device or part of a larger device. For example, the communication device may be: (1) Independent integrated circuit IC, or chip, or chip system or subsystem; (2) A collection of one or more ICs, optionally including storage components for storing data and computer programs; (3) ASIC, such as modem; (4) Modules that can be embedded in other devices; (5) Receivers, terminal equipment, smart terminal equipment, cellular phones, wireless equipment, handheld devices, mobile units, vehicle-mounted equipment, network equipment, cloud equipment, artificial intelligence equipment, etc. (6) Others, etc.

[0199] For cases where the communication device can be a chip or a chip system, please refer to [link / reference]. Figure 12 The diagram shows the structure of the chip. Figure 12The chip shown includes a processor 1201 and an interface 1202. There can be one or more processors 1201, and multiple interfaces 1202.

[0200] In the case where the chip is used to implement the functions of the user equipment in the embodiments of this application: the processor 1001 is used to execute... Figure 3 Step S302 in Figure 4 Step S402 (including S4021-S4024) Figure 5 Steps S501-S502 in the process Figure 6 Steps S601 (including S6011-S6016)-S602 (including S6021-S6024) are included; interface 1202 is used to execute Figure 3 Step S301 in Figure 4 Step S401 in the process.

[0201] Regarding the case where the chip is used to implement the functions of the network device in the embodiments of this application: Interface 1202 is used to perform... Figure 2 Step S201.

[0202] Optionally, the chip also includes a memory 1203 for storing necessary computer programs and data.

[0203] Those skilled in the art will also understand that the various illustrative logical blocks and steps listed in the embodiments of this application can be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented through hardware or software depends on the specific application and the overall system design requirements. Those skilled in the art can implement the described functionality using various methods for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of this application.

[0204] This application also provides a system for implementing initial BWP configuration, the system including the aforementioned... Figure 9 , Figure 10 The communication device in the embodiment serves as a user equipment and the aforementioned Figure 7 The communication device in the embodiment is a network device, or the system includes the aforementioned Figure 10 The embodiments include a communication device as a user equipment and a communication device as a network device.

[0205] This application also provides a readable storage medium having instructions stored thereon that, when executed by a computer, implement the functions of any of the above method embodiments.

[0206] This application also provides a computer program product that, when executed by a computer, implements the functions of any of the above method embodiments.

[0207] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program can be transferred from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVDs)), or semiconductor media (e.g., solid-state disks (SSDs)).

[0208] Those skilled in the art will understand that the various numerical designations such as "first," "second," etc., involved in this application are merely for the convenience of description and are not intended to limit the scope of the embodiments of this application, nor do they indicate the order of sequence.

[0209] At least one in this application can also be described as one or more, and multiple can be two, three, four or more, and this application does not impose any limitation. In the embodiments of this application, for a technical feature, the technical features in that technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", and there is no order or size among the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0210] As used herein, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, device, and / or apparatus (e.g., disk, optical disk, memory, programmable logic device (PLD)) used to provide machine instructions and / or data to a programmable processor, including machine-readable media that receive machine instructions as machine-readable signals. The term "machine-readable signal" refers to any signal used to provide machine instructions and / or data to a programmable processor.

[0211] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as a data server), or computing systems that include middleware components (e.g., an application server), or computing systems that include frontend components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., a communication network). Examples of communication networks include local area networks (LANs), wide area networks (WANs), and the Internet.

[0212] Computer systems can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. Client-server relationships are created by computer programs running on the respective computers and having a client-server relationship with each other.

[0213] It should be understood that the various forms of processes shown above can be used to rearrange, add, or delete steps. For example, the steps described in this disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this disclosure can be achieved, and this is not limited herein.

[0214] Furthermore, it should be understood that the various embodiments described in this application can be implemented individually or in combination with other embodiments, where the scheme allows.

[0215] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0216] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0217] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for switching bandwidth portion (BWP), characterized in that, The method is executed by a specific type of terminal in a connected state, the specific type of terminal including a Redcap-type terminal with reduced capabilities, the method comprising: If there is no random access channel RACH on the currently active BWP, perform uplink BWP handover and downlink BWP handover based on the BWP-related information obtained from the system information; The system messages include Master Information Block (MIB) and / or System Information Block Type 1 (SIB1); If there is no RACH on the currently active BWP, performing uplink BWP handover and downlink BWP handover based on the BWP-related information obtained from the system information includes: When the BWP-related information obtained from SIB1 includes first uplink initial BWP information indicating an uplink initial BWP dedicated to the specific type of terminal, the uplink BWP is switched to the uplink initial BWP indicated by the first uplink initial BWP information. When the BWP-related information obtained from SIB1 includes second uplink initial BWP information indicating an uplink initial BWP for a regular type of terminal, but does not include first uplink initial BWP information indicating an uplink initial BWP specifically for the specific type of terminal, and the uplink initial BWP indicated by the second uplink initial BWP information meets the preset bandwidth requirement, the uplink BWP is switched to the uplink initial BWP indicated by the second uplink initial BWP information included in the BWP-related information obtained from SIB1. When the BWP-related information obtained from SIB1 includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, the downlink BWP is switched to the downlink initial BWP indicated by the first downlink initial BWP information. When the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a regular type of terminal, but does not include first downlink initial BWP information indicating a downlink initial BWP specifically for the specific type of terminal, and the downlink initial BWP indicated by the second downlink initial BWP information meets the preset bandwidth requirement, the downlink BWP is switched to the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1. If the inactive timer of the BWP on the currently active BWP times out, and the specific type of terminal is not configured with a default downlink BWP, when the BWP-related information obtained from SIB1 includes first downlink initial BWP information indicating a downlink initial BWP dedicated to the specific type of terminal, the downlink BWP will be switched to the downlink initial BWP indicated by the first downlink initial BWP information. If the inactive timer for the BWP on the currently active BWP times out, and the specific type of terminal is not configured with a default downlink BWP, when the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for regular type terminals but does not include first downlink initial BWP information indicating a downlink initial BWP dedicated to the specific type of terminal, and the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1 meets the bandwidth requirements of the specific type of terminal, the downlink BWP will be switched to the downlink initial BWP indicated by the second downlink initial BWP information.

2. The method as described in claim 1, characterized in that, If there is no RACH on the currently active BWP, the downlink BWP handover is performed based on the BWP-related information obtained from the system information, including: When the BWP-related information obtained from SIB1 includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, the downlink BWP is switched to the downlink initial BWP indicated by the first downlink initial BWP information, which has a RAR search space.

3. The method as described in claim 2, characterized in that, The downlink initial BWP indicated by the first downlink initial BWP information has a RAR search space including: The first downlink initial BWP information does not include the control resource set 0CORESET0, but only configures the RAR search space.

4. The method as described in claim 1, characterized in that, If there is no RACH on the currently active BWP, the downlink BWP handover is performed based on the BWP-related information obtained from the system information, including: When the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a regular type of terminal, but does not include first downlink initial BWP information indicating a downlink initial BWP specifically for the specific type of terminal, and the downlink initial BWP indicated by the second downlink initial BWP information meets the preset bandwidth requirement, the downlink BWP is switched to the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1, wherein the downlink initial BWP indicated by the second downlink initial BWP information has a RAR search space.

5. The method as described in claim 1, characterized in that, If there is no Random Access Channel (RACH) on the currently active BWP, the step of performing uplink BWP handover based on the BWP-related information obtained from the system information further includes: When the BWP-related information obtained from SIB1 includes first uplink initial BWP information indicating an uplink initial BWP dedicated to the specific type of terminal and the uplink initial BWP indicated by the first uplink initial BWP information has random access resources configured for the specific type of terminal, the uplink BWP is switched to the uplink initial BWP indicated by the first uplink initial BWP information.

6. The method as described in claim 1, characterized in that, If there is no Random Access Channel (RACH) on the currently active BWP, the step of performing uplink BWP handover based on the BWP-related information obtained from the system information further includes: When the BWP-related information obtained from SIB1 includes a first uplink initial BWP information indicating an uplink initial BWP dedicated to the specific type of terminal and a second uplink initial BWP information indicating an uplink initial BWP for a regular type of terminal, but the uplink initial BWP indicated by the first uplink initial BWP information does not have random access resources configured for the specific type of terminal, the uplink BWP is switched to the uplink initial BWP indicated by the second uplink initial BWP information.

7. The method as described in claim 1, characterized in that, The method further includes: When the BWP-related information obtained from SIB1 includes a second downlink initial BWP information indicating a downlink initial BWP for a regular type of terminal and a first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, and the downlink initial BWP indicated by the first downlink initial BWP information does not have a RAR search space, and the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1 does not meet the preset bandwidth requirement, the downlink BWP is switched to the downlink initial BWP for a regular type of terminal indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB.

8. The method as described in claim 1, characterized in that, The method further includes: When the BWP-related information obtained from SIB1 does not include second downlink initial BWP information indicating a downlink initial BWP for a regular type of terminal, but includes first downlink initial BWP information indicating a downlink initial BWP specifically for a particular type of terminal, and the downlink initial BWP indicated by the first downlink initial BWP information does not have a RAR search space, the downlink BWP is switched to the downlink initial BWP for a regular type of terminal indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB.

9. The method as described in claim 1, characterized in that, The method further includes: When the BWP-related information obtained from SIB1 includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, and the downlink initial BWP indicated by the first downlink initial BWP information does not have a RAR search space, the downlink BWP is switched to the downlink initial BWP for a regular type of terminal indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB.

10. The method as described in claim 1, characterized in that, If the inactive timer for the BWP on the currently active BWP times out, and the specific type of terminal is not configured with a default downlink BWP, the method further includes: When the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a regular type of terminal but does not include first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, and the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1 meets the preset bandwidth requirement, the downlink BWP is switched to the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1.

11. The method as described in claim 1, characterized in that, If the inactive timer for the BWP on the currently active BWP times out, and the specific type of terminal is not configured with a default downlink BWP, the method further includes: When the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a regular type of terminal but does not include first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, and the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1 does not meet the preset bandwidth requirement, the downlink BWP is switched to the downlink initial BWP for a regular type of terminal indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB.

12. The method as described in claim 1, characterized in that, If the inactive timer for the BWP on the currently active BWP times out, and the specific type of terminal is not configured with a default downlink BWP, the method further includes: When the BWP-related information obtained from SIB1 does not include second downlink initial BWP information indicating a downlink initial BWP for a regular type terminal and first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type terminal, the downlink BWP is switched to the downlink initial BWP for a regular type terminal indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB.

13. The method as described in claim 1, characterized in that, If the inactive timer for the BWP on the currently active BWP times out, and the specific type of terminal is not configured with a default downlink BWP, the method further includes: When the BWP-related information obtained from SIB1 does not include a first downlink initial BWP indicating a downlink initial BWP dedicated to a specific type of terminal, the downlink BWP is switched to the downlink initial BWP for a regular type of terminal indicated by the third downlink initial BWP information included in the BWP-related information obtained from MIB.

14. A method for switching bandwidth portion (BWP), characterized in that, The method is performed by a network device, and the method includes: BWP-related information is sent to specific types of terminals via system messages. These specific types of terminals include Redcap-type terminals with reduced capabilities. The system messages include Master Information Block (MIB) and / or System Information Block Type 1 (SIB1). The BWP-related information includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal and / or second downlink initial BWP information indicating a downlink initial BWP for a regular type of terminal. The BWP-related information is used by the specific type of terminal to perform uplink BWP handover and downlink BWP handover based on the BWP-related information obtained from the system information when there is no random access channel RACH on the currently active BWP. The step of performing uplink BWP handover and downlink BWP handover based on BWP-related information obtained from the system information when there is no RACH on the currently active BWP includes: When the BWP-related information obtained from SIB1 includes first uplink initial BWP information indicating an uplink initial BWP dedicated to the specific type of terminal, the uplink BWP is switched to the uplink initial BWP indicated by the first uplink initial BWP information. When the BWP-related information obtained from SIB1 includes second uplink initial BWP information indicating an uplink initial BWP for a regular type of terminal, but does not include first uplink initial BWP information indicating an uplink initial BWP specifically for the specific type of terminal, and the uplink initial BWP indicated by the second uplink initial BWP information meets the preset bandwidth requirement, the uplink BWP is switched to the uplink initial BWP indicated by the second uplink initial BWP information included in the BWP-related information obtained from SIB1. When the BWP-related information obtained from SIB1 includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, the downlink BWP is switched to the downlink initial BWP indicated by the first downlink initial BWP information. When the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a regular type of terminal, but does not include first downlink initial BWP information indicating a downlink initial BWP specifically for the specific type of terminal, and the downlink initial BWP indicated by the second downlink initial BWP information meets the preset bandwidth requirement, the downlink BWP is switched to the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1. The BWP-related information is also used when the BWP inactivity timer of the specific type of terminal expires on the currently active BWP, and the specific type of terminal is not configured with a default downlink BWP. When the BWP-related information obtained from SIB1 includes first downlink initial BWP information indicating a downlink initial BWP dedicated to the specific type of terminal, the downlink BWP is switched to the downlink initial BWP indicated by the first downlink initial BWP information. The BWP-related information is also used when the BWP inactivity timer for the specific type of terminal expires on the currently active BWP, and the specific type of terminal is not configured with a default downlink BWP. When the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a regular type of terminal but does not include first downlink initial BWP information indicating a downlink initial BWP dedicated to the specific type of terminal, and the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1 meets the bandwidth requirements of the specific type of terminal, the downlink BWP is switched to the downlink initial BWP indicated by the second downlink initial BWP information.

15. The method as described in claim 14, characterized in that, The step of performing a downlink BWP handover based on BWP-related information obtained from the system information when there is no RACH on the currently active BWP includes: When the BWP-related information obtained from SIB1 includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, the downlink BWP is switched to the downlink initial BWP indicated by the first downlink initial BWP information, which has a RAR search space.

16. The method as described in claim 15, characterized in that, The downlink initial BWP indicated by the first downlink initial BWP information has a RAR search space including: The first downlink initial BWP information does not include the control resource set 0CORESET0, but only configures the RAR search space.

17. The method as described in claim 14, characterized in that, The step of performing a downlink BWP handover based on BWP-related information obtained from the system information when there is no RACH on the currently active BWP includes: When the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a regular type of terminal, but does not include first downlink initial BWP information indicating a downlink initial BWP specifically for the specific type of terminal, and the downlink initial BWP indicated by the second downlink initial BWP information meets the preset bandwidth requirement, the downlink BWP is switched to the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1, wherein the downlink initial BWP indicated by the second downlink initial BWP information has a RAR search space.

18. The method as described in claim 14, characterized in that, The BWP-related information also includes first uplink initial BWP information indicating an uplink initial BWP dedicated to a specific type of terminal.

19. The method according to any one of claims 14-18, characterized in that, The BWP-related information also includes second uplink initial BWP information indicating the uplink initial BWP for a conventional type of terminal.

20. The method as described in claim 14, characterized in that, The BWP-related information in the MIB includes the downlink initial BWP indicated by the third downlink initial BWP information for conventional type terminals.

21. An initial BWP handover device, the device being applied to a specific type of terminal in a connected state, the specific type of terminal including a capability-reduced Redcap type terminal, characterized in that, include: The processing module is used to perform uplink BWP handover and downlink BWP handover based on the BWP-related information obtained from the system information if there is no random access channel RACH on the currently active BWP. The system messages include Master Information Block (MIB) and / or System Information Block Type 1 (SIB1); The processing module is specifically used for: When the BWP-related information obtained from SIB1 includes first uplink initial BWP information indicating an uplink initial BWP dedicated to the specific type of terminal, the uplink BWP is switched to the uplink initial BWP indicated by the first uplink initial BWP information. When the BWP-related information obtained from SIB1 includes second uplink initial BWP information indicating an uplink initial BWP for a regular type of terminal, but does not include first uplink initial BWP information indicating an uplink initial BWP specifically for the specific type of terminal, and the uplink initial BWP indicated by the second uplink initial BWP information meets the preset bandwidth requirement, the uplink BWP is switched to the uplink initial BWP indicated by the second uplink initial BWP information included in the BWP-related information obtained from SIB1. When the BWP-related information obtained from SIB1 includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, the downlink BWP is switched to the downlink initial BWP indicated by the first downlink initial BWP information. When the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a regular type of terminal, but does not include first downlink initial BWP information indicating a downlink initial BWP specifically for the specific type of terminal, and the downlink initial BWP indicated by the second downlink initial BWP information meets the preset bandwidth requirement, the downlink BWP is switched to the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1. The processing module is also used for: If the inactive timer of the BWP on the currently active BWP times out, and the specific type of terminal is not configured with a default downlink BWP, when the BWP-related information obtained from SIB1 includes first downlink initial BWP information indicating a downlink initial BWP dedicated to the specific type of terminal, the downlink BWP will be switched to the downlink initial BWP indicated by the first downlink initial BWP information. If the inactive timer for the BWP on the currently active BWP times out, and the specific type of terminal is not configured with a default downlink BWP, when the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for regular type terminals but does not include first downlink initial BWP information indicating a downlink initial BWP dedicated to the specific type of terminal, and the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1 meets the bandwidth requirements of the specific type of terminal, the downlink BWP will be switched to the downlink initial BWP indicated by the second downlink initial BWP information.

22. An initial BWP handover device, the device being applied to a network device, characterized in that, include: The transceiver module is used to send BWP-related information to a specific type of terminal via system messages. The specific type of terminal includes a capability-reduced Redcap type terminal. The system messages include a Master Information Block (MIB) and / or a System Information Block Type 1 (SIB1). The BWP-related information includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal and / or second downlink initial BWP information indicating a downlink initial BWP for a regular type of terminal. The BWP-related information is used by the specific type of terminal to perform uplink BWP handover and downlink BWP handover based on the BWP-related information obtained from the system information when there is no random access channel RACH on the currently active BWP. The step of performing uplink BWP handover and downlink BWP handover based on BWP-related information obtained from the system information when there is no RACH on the currently active BWP includes: When the BWP-related information obtained from SIB1 includes first uplink initial BWP information indicating an uplink initial BWP dedicated to the specific type of terminal, the uplink BWP is switched to the uplink initial BWP indicated by the first uplink initial BWP information. When the BWP-related information obtained from SIB1 includes second uplink initial BWP information indicating an uplink initial BWP for a regular type of terminal, but does not include first uplink initial BWP information indicating an uplink initial BWP specifically for the specific type of terminal, and the uplink initial BWP indicated by the second uplink initial BWP information meets the preset bandwidth requirement, the uplink BWP is switched to the uplink initial BWP indicated by the second uplink initial BWP information included in the BWP-related information obtained from SIB1. When the BWP-related information obtained from SIB1 includes first downlink initial BWP information indicating a downlink initial BWP dedicated to a specific type of terminal, the downlink BWP is switched to the downlink initial BWP indicated by the first downlink initial BWP information. When the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a regular type of terminal, but does not include first downlink initial BWP information indicating a downlink initial BWP specifically for the specific type of terminal, and the downlink initial BWP indicated by the second downlink initial BWP information meets the preset bandwidth requirement, the downlink BWP is switched to the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1. The BWP-related information is also used when the BWP inactivity timer of the specific type of terminal expires on the currently active BWP, and the specific type of terminal is not configured with a default downlink BWP. When the BWP-related information obtained from SIB1 includes first downlink initial BWP information indicating a downlink initial BWP dedicated to the specific type of terminal, the downlink BWP is switched to the downlink initial BWP indicated by the first downlink initial BWP information. The BWP-related information is also used when the BWP inactivity timer for the specific type of terminal expires on the currently active BWP, and the specific type of terminal is not configured with a default downlink BWP. When the BWP-related information obtained from SIB1 includes second downlink initial BWP information indicating a downlink initial BWP for a regular type of terminal but does not include first downlink initial BWP information indicating a downlink initial BWP dedicated to the specific type of terminal, and the downlink initial BWP indicated by the second downlink initial BWP information included in the BWP-related information obtained from SIB1 meets the bandwidth requirements of the specific type of terminal, the downlink BWP is switched to the downlink initial BWP indicated by the second downlink initial BWP information.

23. A communication device, wherein, include: transceiver; Memory; A processor, connected to both the transceiver and the memory, is configured to control the wireless signal transmission and reception of the transceiver by executing computer-executable instructions on the memory, and to implement the method described in any one of claims 1-20.

24. A computer storage medium, wherein, The computer storage medium stores computer-executable instructions; when executed by a processor, the computer-executable instructions can implement the method described in any one of claims 1-20.

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