Method, device, electronic device and storage medium for selecting bandwidth part

Abstract

The disclosed embodiments provide a method, device, electronic device and storage medium for bandwidth part selection, which relate to the field of communication technology. The method includes: in response to receiving a random access request from a RedCap terminal, obtaining a target SSB corresponding to the RedCap terminal; determining the target bandwidth part corresponding to the RedCap terminal from a pre-established correspondence between SSB and bandwidth part according to the target SSB. The above technical solution can accurately identify the optimal target bandwidth part corresponding to each RedCap terminal in multiple bandwidth parts, improve the scheduling performance of the RedCap terminal, and enhance the user experience.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a method, device, electronic device and storage medium for selecting a bandwidth portion. Background Art

[0002] RedCap (Reduced Capability) is a 5G technology defined by the 3GPP standardization organization. The cost and power consumption of RedCap terminals are reduced by reducing terminal bandwidth, the number of transmitting and receiving antennas, and the maximum modulation order.

[0003] In related technologies, the RedCap function is usually enabled in 5G cells, and a 5G cell may include multiple BWPs (BandWidth Parts), while a RedCap terminal can only be scheduled in one of the multiple BWPs. Fixedly configuring BWP for the RedCap terminal will seriously affect the scheduling performance of the RedCap terminal. Summary of the invention

[0004] The purpose of the embodiments of the present disclosure is to provide a method, device, electronic device and storage medium for selecting a bandwidth portion.

[0005] To solve the above technical problems, the embodiments of the present disclosure are implemented through the following aspects.

[0006] According to the first aspect of an embodiment of the present disclosure, a method for bandwidth part selection is provided, the method comprising: in response to receiving a random access request from a RedCap terminal, obtaining a target SSB corresponding to the RedCap terminal; determining the target bandwidth part corresponding to the RedCap terminal from a pre-established correspondence between SSB and bandwidth part according to the target SSB.

[0007] According to the second aspect of an embodiment of the present disclosure, a device for selecting a bandwidth part is provided, the device comprising: an acquisition module for acquiring a target SSB corresponding to the RedCap terminal in response to receiving a random access request from a RedCap terminal; and a determination module for determining the target bandwidth part corresponding to the RedCap terminal from a pre-established correspondence between SSB and bandwidth part according to the target SSB.

[0008] According to a third aspect of an embodiment of the present disclosure, an electronic device is provided, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program implements the method for selecting a bandwidth portion as described in the first aspect when executed by the processor.

[0009] According to a fourth aspect of an embodiment of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the method for selecting a bandwidth part as described in the first aspect is implemented.

[0010] By adopting the above technical solution, the optimal target bandwidth part corresponding to each RedCap terminal in multiple bandwidth parts can be accurately identified, the scheduling performance of the RedCap terminal can be improved, and the user experience can be improved.

[0011] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

[0012] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 A schematic diagram showing a flow chart of a method for selecting a bandwidth portion provided by an embodiment of the present disclosure; Figure 2 Another schematic diagram showing a flow chart of a method for selecting a bandwidth portion provided by an embodiment of the present disclosure; Figure 3 Another schematic flow chart of a method for selecting a bandwidth portion provided by an embodiment of the present disclosure is shown; Figure 4 Another schematic flow chart of a method for selecting a bandwidth portion provided by an embodiment of the present disclosure is shown; Figure 5 Another schematic flow chart of a method for selecting a bandwidth portion provided by an embodiment of the present disclosure is shown; Figure 6 A block diagram showing a device for selecting a bandwidth portion provided by an embodiment of the present disclosure; Figure 7 A block diagram showing another device for selecting a bandwidth portion provided by an embodiment of the present disclosure; Figure 8 A schematic diagram of the hardware structure of an electronic device for executing the bandwidth part selection method provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0015] In order to enable those skilled in the art to better understand the technical solutions in the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present disclosure.

[0016] The following technical approach is usually used in the related art to select a target bandwidth portion for a RedCap terminal.

[0017] Method 1: Frequency selection. That is, the CQI (Channel Quality Indication) of each sub-band on the entire bandwidth is obtained through the sub-band CQI (Channel Quality Indication) of the RedCap terminal, and the sub-band with the best performance is selected as the appropriate bandwidth part. However, the RedCap terminal can only work on a certain bandwidth part and cannot evaluate the performance of other bandwidth parts.

[0018] Method 2: frequency domain sequential allocation. That is, bandwidth parts are allocated in a fixed order, such as from low frequency to high frequency. This allocation method may cause the bandwidth parts of adjacent cells to have the same frequency domain, causing mutual interference.

[0019] Method 3: Use randomization technology to determine the bandwidth part using PCI mod3 or mod6. This method cannot guarantee that the selected bandwidth part is optimal, and it may also cause mutual interference with ordinary terminal scheduling.

[0020] It should be noted that although the RedCap terminal is used as an example in the present disclosure, the method for selecting a bandwidth portion provided in the embodiment of the present disclosure can also be applied to other scenarios, such as MTC (Machine Type Communication), and the method of the embodiment of the present disclosure can be used to determine a corresponding partial frequency band for the MTC terminal from the full frequency band of the macro network. The present disclosure does not limit this.

[0021] Figure 1 A schematic diagram showing a flow chart of a method for selecting a bandwidth portion provided by an embodiment of the present disclosure is shown as follows: Figure 1 As shown, the method may include the following steps: In step S101, in response to receiving a random access request from a RedCap terminal, a target SSB corresponding to the RedCap terminal is obtained.

[0022] It is understandable that a macro cell may include multiple SSBs (Synchronization Signal / PBCHBlock) for covering different areas, and the RedCap terminal may select the corresponding SSB (e.g., the SSB with the strongest signal detected) for access based on the current location. In some embodiments, the target SSB corresponding to the RedCap terminal may be determined by the RO (RACH Occasion) when the RedCap terminal accesses.

[0023] It is understandable that the measurement report of RSRP (Reference Signal Receiving Power) of the target SSB can be obtained through CSI measurement configuration to determine the change of the target SSB corresponding to the connected RedCap terminal. Therefore, the correspondence table between the target SSB and the RedCap terminal as shown in Table 1 below can be maintained. Different RedCap terminals can correspond to the same or different target SSBs, so that the same or different target SSBs corresponding to multiple different RedCap terminals can be determined through Table 1.

[0024] Table 1

[0025] In step S102, the target bandwidth part corresponding to the RedCap terminal is determined from the pre-established correspondence between SSB and bandwidth part according to the target SSB.

[0026] In some embodiments, the correspondence between SSB and bandwidth part includes multiple SSBs and scheduling performance indicators of common terminals for multiple bandwidth parts corresponding to each SSB.

[0027] For example, taking the case where the cell includes 5 bandwidth parts BWP, the correspondence between SSB and bandwidth parts may be as shown in the following Table 2.

[0028] Table 2

[0029] As shown in Table 2, It is the scheduling performance indicator of the common terminal in the j-th bandwidth part corresponding to the i-th SSB.

[0030] In some embodiments, the scheduling performance indicator may include at least one of the following: Modulation Coding Scheme MCS; RANK; Spectral efficiency; The product of spectral efficiency and rank.

[0031] The spectrum efficiency can be obtained from the spectrum efficiency table in the 3GPP standard through the modulation and coding scheme MCS. It can be to normalize multiple scheduling performance indicators, and then obtain the weighted average of the normalized scheduling performance indicators according to the preset weights. The specific technical solutions of normalization and weighted average can be referred to the records in the relevant technology, which will not be elaborated here.

[0032] Figure 2 Another flow chart of the method for selecting a bandwidth portion provided by an embodiment of the present disclosure is shown as follows: Figure 2 As shown, step S102 may specifically include the following steps: In step S1021, the scheduling performance indicators of ordinary terminals of multiple bandwidth parts corresponding to the target SSB are obtained from the correspondence between SSB and bandwidth parts.

[0033] For example, if the target SSB corresponding to the reduced terminal capability is SSB2, the scheduling performance indicators of the common terminals of the five bandwidth parts corresponding to SSB2 can be obtained from the corresponding relationship between SSB and bandwidth parts shown in Table 2, that is, , , , , .

[0034] In step S1022, the bandwidth portion with the best scheduling performance index of the common terminal is used as the target bandwidth portion corresponding to the RedCap terminal.

[0035] For example, if the target SSB corresponding to the reduced terminal capability is SSB2, the largest bandwidth part among the scheduling performance indicators of the ordinary terminal of the five bandwidth parts corresponding to SSB2 obtained from the correspondence between SSB and bandwidth parts can be used as the target bandwidth part.

[0036] In some possible implementations, the scheduling performance indicators of ordinary terminals of multiple bandwidth parts corresponding to the target SSB obtained from the correspondence between SSB and bandwidth parts can be arranged in descending order, and the bandwidth part at the head of the queue can be used as the target bandwidth part.

[0037] By adopting the above technical solution, the optimal target bandwidth part corresponding to each RedCap terminal in multiple bandwidth parts can be accurately identified, the scheduling performance of the RedCap terminal can be improved, and the user experience can be improved.

[0038] In some embodiments, each bandwidth portion also includes a corresponding current capacity indicator.

[0039] For example, the current capacity indicator may be the number of associated users corresponding to the bandwidth portion, for example, the total number of RedCap terminals that have been associated with the bandwidth portion.

[0040] Step S1022 may specifically include: taking the bandwidth portion of the ordinary terminal having the best scheduling performance index and the corresponding current capacity index satisfying the preset capacity index threshold as the target bandwidth portion corresponding to the RedCap terminal.

[0041] In some possible implementations, a capacity indicator threshold corresponding to each bandwidth part can be set in advance, and the scheduling performance indicators of ordinary terminals corresponding to multiple bandwidth parts of the target SSB obtained from the correspondence between SSB and bandwidth parts can be arranged in descending order, and the bandwidth part whose corresponding current capacity indicator meets the preset capacity indicator threshold can be queried sequentially from the head of the queue, and the bandwidth part can be used as the target bandwidth part.

[0042] It is understandable that when setting the capacity indicator threshold, the same or different capacity indicator thresholds may be set for different bandwidth parts based on the interference conditions of different bandwidth parts, and the present application does not impose any limitation on this.

[0043] By adopting the above technical solution, the performance of the bandwidth part can be considered while taking into account the number of associated users of the bandwidth part, avoiding too many users associated with some bandwidth parts, and further improving the performance of the RedCap terminal.

[0044] Figure 3 Another flow chart of the method for selecting a bandwidth portion provided by an embodiment of the present disclosure is shown as follows: Figure 3 As shown, after determining the target bandwidth part corresponding to the RedCap terminal from the pre-established correspondence between SSB and bandwidth part according to the target SSB, the method may further include the following steps.

[0045] In step S103, the active bandwidth portion corresponding to the RedCap terminal is updated from the preset default bandwidth portion to the target bandwidth portion.

[0046] In some embodiments, a default bandwidth part can be pre-set for each RedCap terminal, for example, the bandwidth part with the lowest frequency is used as the default bandwidth part. After the target bandwidth part corresponding to the RedCap terminal is determined from the pre-established correspondence between SSB and bandwidth part according to the target SSB, the target bandwidth part can be indicated to the RedCap terminal through RRC (Radio Resource Control) message, DCI (Downlink Control Information) or MACCE (MAC Control Element), thereby updating the active bandwidth part corresponding to the RedCap terminal from the preset default bandwidth part to the target bandwidth part.

[0047] By adopting the above technical solution, the optimal target bandwidth part corresponding to each RedCap terminal in multiple bandwidth parts can be accurately identified, the scheduling performance of the RedCap terminal can be improved, and the user experience can be improved.

[0048] Figure 4 Another flow chart of the method for selecting a bandwidth portion provided by an embodiment of the present disclosure is shown as follows: Figure 4 As shown, after updating the active bandwidth portion corresponding to the RedCap terminal from the preset default bandwidth portion to the target bandwidth portion, the method may further include the following steps.

[0049] In step S104, the number of associated users corresponding to the target bandwidth portion is updated.

[0050] After the active bandwidth portion corresponding to the RedCap terminal is updated from the preset default bandwidth portion to the target bandwidth portion, the number of associated users corresponding to the target bandwidth portion may be increased by one.

[0051] It can be understood that when the target SSB corresponding to the RedCap terminal changes, the corresponding target bandwidth part also changes. After the number of associated users corresponding to the changed target bandwidth part is increased by one, the number of associated users corresponding to the target bandwidth part before the change can be reduced by one.

[0052] After the RedCap terminal enters the idle state from the connected state, the number of associated users corresponding to the target bandwidth portion may also be reduced by one.

[0053] By adopting the above technical solution, the performance of the bandwidth part can be considered while taking into account the number of associated users of the bandwidth part, avoiding too many users associated with some bandwidth parts, and further improving the performance of the RedCap terminal.

[0054] Figure 5Another flow chart of the method for selecting a bandwidth portion provided by an embodiment of the present disclosure is shown as follows: Figure 5 As shown, the method may further include the following steps.

[0055] In step S105, the SSB, bandwidth part and scheduling performance index corresponding to multiple common terminal scheduling data are obtained.

[0056] Each common terminal corresponds to a plurality of scheduling data. A common terminal is a terminal that can be scheduled in multiple bandwidth parts, such as a common 5G terminal above CAT4.

[0057] A macro cell may include multiple SSBs, and a normal terminal may select a corresponding SSB for access based on the current location. In some embodiments, the SSB corresponding to the normal terminal may be determined by the RO when the normal terminal accesses.

[0058] It is understandable that the change of the SSB corresponding to the ordinary terminal in the connected state can be determined by measuring and reporting the RSRP of the SSB corresponding to the ordinary terminal. Therefore, the correspondence table of the SSB corresponding to the ordinary terminal and the RedCap terminal as shown in Table 3 below can be maintained. Different ordinary terminals can correspond to the same or different SSBs, so that multiple different ordinary terminals can be determined to correspond to the same or different SSBs respectively through Table 3.

[0059] Table 3

[0060] For each SSB, scheduling data of one or more terminals in multiple bandwidth parts corresponding to the SSB can be obtained.

[0061] In step S106, the statistical value of the scheduling performance indicator associated with each bandwidth part in the multiple bandwidth parts corresponding to each SSB is calculated.

[0062] Taking the scheduling performance indicator as the product of spectrum efficiency and rank as an example, we can first obtain the converged MCS and RANK corresponding to multiple terminals associated with each bandwidth part in the multiple bandwidth parts corresponding to each SSB as shown in Table 4 according to Table 3 and the corresponding scheduling data.

[0063] Table 4

[0064] As shown in Table 4, It represents the converged MCS of the nth user corresponding to the mth SSB when the kth BWP schedules data. It represents the convergence RANK of the nth user corresponding to the mth SSB when the kth BWP schedules data.

[0065] After obtaining MCS and RANK, the spectrum efficiency corresponding to the MCS can be obtained from the 3GPP table through MCS, and then the product of the spectrum efficiency and the corresponding rank is used as the final scheduling performance indicator, so as to obtain the final scheduling performance indicator corresponding to multiple terminals associated with each bandwidth part in the multiple bandwidth parts corresponding to each SSB.

[0066] It should be noted that Table 4 only shows the scheduling performance indicators corresponding to SSB1. The structures of the scheduling performance indicators of other SSBs are similar and are not described one by one.

[0067] After obtaining the final scheduling performance indicators corresponding to multiple terminals associated with each bandwidth part in the multiple bandwidth parts corresponding to each SSB, the final scheduling performance indicators can be counted to obtain the statistical values ​​of the scheduling performance indicators associated with each bandwidth part in the multiple bandwidth parts corresponding to each SSB as shown in Table 2.

[0068] In some possible implementations, the specific statistical method may be to obtain the average value, maximum value, minimum value, median or mode of multiple scheduling performance indicators, which is not limited in this application.

[0069] In step S107, the correspondence between the SSB and the bandwidth part is determined or updated according to the statistical value of the scheduling performance indicator associated with each bandwidth part in the multiple bandwidth parts corresponding to each SSB.

[0070] In some embodiments, when there is no correspondence between SSB and bandwidth part, the correspondence between SSB and bandwidth part can be determined according to the statistical value of the scheduling performance indicator associated with each bandwidth part in the multiple bandwidth parts corresponding to each SSB. When there is a correspondence between SSB and bandwidth part, the correspondence between SSB and bandwidth part can also be updated by periodically or event-triggeredly using the statistical value of the scheduling performance indicator associated with each bandwidth part in the multiple bandwidth parts corresponding to each SSB, so that the correspondence between SSB and bandwidth part can adapt to changes in the wireless environment.

[0071] By adopting the above technical solution, the correspondence between SSB and bandwidth part can be generated, or the correspondence between SSB and bandwidth part can be updated in time, so as to accurately identify the optimal target bandwidth part corresponding to each RedCap terminal in multiple bandwidth parts, improve the scheduling performance of the RedCap terminal, and enhance the user experience.

[0072] Figure 6 A block diagram of a device for selecting a bandwidth portion provided by an embodiment of the present disclosure is shown as follows: Figure 6 As shown, the device 100 for selecting a bandwidth portion includes: An acquisition module 110, configured to acquire a target SSB corresponding to the RedCap terminal in response to receiving a random access request from the RedCap terminal; The determination module 120 is used to determine the target bandwidth part corresponding to the RedCap terminal from the pre-established correspondence between the SSB and the bandwidth part according to the target SSB.

[0073] Optionally, the correspondence relationship between the SSB and the bandwidth part includes a plurality of SSBs and scheduling performance indicators of common terminals of a plurality of bandwidth parts corresponding to each SSB, and the determination module 120 is further used to: Obtain scheduling performance indicators of common terminals of multiple bandwidth parts corresponding to the target SSB from the correspondence between the SSB and the bandwidth parts; The bandwidth part with the best scheduling performance index of the ordinary terminal is used as the target bandwidth part corresponding to the RedCap terminal.

[0074] Optionally, each bandwidth part further includes a corresponding current capacity indicator, and the determination module 120 is further configured to: The bandwidth part with the best scheduling performance index of the ordinary terminal and the corresponding current capacity index meeting the preset capacity index threshold is taken as the target bandwidth part corresponding to the RedCap terminal.

[0075] Optionally, the determination module 120 is further configured to: Update the active bandwidth portion corresponding to the RedCap terminal from the preset default bandwidth portion to the target bandwidth portion.

[0076] Optionally, the determination module 120 is further configured to: Update the number of associated users corresponding to the target bandwidth part.

[0077] The device 100 provided in the embodiment of the present application can execute each method in the foregoing method embodiment and realize the functions and beneficial effects of each method in the foregoing method embodiment, which will not be described in detail here.

[0078] Figure 7 A block diagram showing another device for selecting a bandwidth portion provided by an embodiment of the present disclosure is shown as follows: Figure 7 As shown, the bandwidth part selection device 100 also includes: Generate an update module 120, for: Obtain the corresponding SSB, bandwidth part and scheduling performance indicators when multiple common terminal scheduling data are obtained, and each common terminal corresponds to multiple scheduling data; Calculate a statistical value of a scheduling performance indicator associated with each bandwidth part in a plurality of bandwidth parts corresponding to each SSB; According to the statistical value of the scheduling performance indicator associated with each bandwidth part in the multiple bandwidth parts corresponding to each SSB, the corresponding relationship between the SSB and the bandwidth part is determined or updated.

[0079] The device 100 provided in the embodiment of the present application can execute each method in the foregoing method embodiment and realize the functions and beneficial effects of each method in the foregoing method embodiment, which will not be described in detail here.

[0080] Figure 8 FIG. 1 shows a schematic diagram of the structure of a server or a database provided in an embodiment of the present disclosure. The server or the database may be an electronic device, such as Figure 8 As shown, at the hardware level, the electronic device includes at least one processor, and optionally includes an internal bus, a network interface, and a memory. The memory may include a memory, such as a high-speed random access memory (RAM), and may also include a non-volatile memory (non-volatile memory), such as at least one disk storage, etc. Of course, the electronic device may also include hardware required for other services.

[0081] The processor, network interface and memory can be interconnected through an internal bus, which can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one bidirectional arrow is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0082] The memory stores the program. Specifically, the program may include a program code, and the program code includes at least one computer operation instruction. The memory may include a memory and a non-volatile memory, and provides instructions and data to the processor.

[0083] At least one processor reads the corresponding computer program from the non-volatile memory into the memory and then runs it, forming a device for locating the target user at the logical level. At least one processor executes the program stored in the memory and specifically performs: the method disclosed in the embodiment of the first aspect of the present disclosure and realizes the functions and beneficial effects of each method described in the method embodiment above, which will not be repeated here.

[0084] The method disclosed in the embodiment shown in the first aspect of the present disclosure can be applied to at least one processor or implemented by at least one processor. The processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware or software instructions in at least one processor. The above processor can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present disclosure can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in conjunction with the embodiments of the present disclosure can be directly embodied as a hardware decoding processor for execution, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0085] The electronic device can also execute the methods described in the foregoing method embodiments, and realize the functions and beneficial effects of the methods described in the foregoing method embodiments, which will not be repeated here.

[0086] Of course, in addition to software implementation, the electronic device disclosed in the present invention does not exclude other implementation methods, such as logic devices or a combination of software and hardware, etc., that is to say, the execution subject of the following processing flow is not limited to each logic unit, but can also be hardware or logic devices.

[0087] The embodiments of the present disclosure also propose a computer-readable storage medium, which stores one or more programs. When the one or more programs are executed by at least one processor, they implement the method disclosed in the embodiments shown in the present disclosure and realize the functions and beneficial effects of the various methods described in the previous method embodiments, which will not be repeated here.

[0088] The computer-readable storage medium includes a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0089] Furthermore, the embodiments of the present disclosure also provide a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the following process is implemented: the method disclosed in the embodiments shown in the present disclosure and the functions and beneficial effects of the various methods described in the previous method embodiments are implemented, which will not be repeated here.

[0090] In short, the above is only a preferred embodiment of the present disclosure and does not limit the protection scope of the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

[0091] The systems, modules or units described in the above embodiments may be implemented by computer chips or entities, or by products with certain functions. A typical implementation device is a computer. Specifically, the computer may be, for example, a personal computer, a laptop computer, a cellular phone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.

[0092] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0093] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0094] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

Claims

1. A method for bandwidth part selection, characterized in that: The method comprises: In response to receiving a random access request from a RedCap terminal, obtaining a target SSB corresponding to the RedCap terminal; The target bandwidth part corresponding to the RedCap terminal is determined according to the target SSB from the pre-established correspondence between the SSB and the bandwidth part.

2. The method according to claim 1, characterized in that The correspondence between the SSB and the bandwidth part includes a plurality of SSBs and a scheduling performance index of a common terminal of a plurality of bandwidth parts corresponding to each SSB; and determining the target bandwidth part corresponding to the RedCap terminal from the pre-established correspondence between the SSB and the bandwidth part according to the target SSB, comprising: Obtaining scheduling performance indicators of common terminals of multiple bandwidth parts corresponding to the target SSB from the correspondence between the SSB and the bandwidth parts; The bandwidth portion with the best scheduling performance index of the ordinary terminal is used as the target bandwidth portion corresponding to the RedCap terminal.

3. The method according to claim 2, characterized in that The scheduling performance indicator includes at least one of the following: Modulation and coding scheme; rank; Spectral efficiency; The product of spectral efficiency and rank.

4. The method according to claim 2, characterized in that Each bandwidth part also includes a corresponding current capacity indicator, and the bandwidth part with the best scheduling performance indicator of the ordinary terminal is used as the target bandwidth part corresponding to the RedCap terminal, including: The bandwidth portion whose scheduling performance index of the ordinary terminal is optimal and whose corresponding current capacity index meets a preset capacity index threshold is used as the target bandwidth portion corresponding to the RedCap terminal.

5. The method according to claim 4, characterized in that After determining the target bandwidth portion corresponding to the RedCap terminal from a pre-established correspondence between SSB and bandwidth portion according to the target SSB, the method further includes: The active bandwidth portion corresponding to the RedCap terminal is updated from a preset default bandwidth portion to the target bandwidth portion.

6. The method according to claim 5, characterized in that The current capacity indicator includes the number of associated users; after updating the active bandwidth portion corresponding to the RedCap terminal from a preset default bandwidth portion to the target bandwidth portion, the method further includes: The number of associated users corresponding to the target bandwidth portion is updated.

7. The method according to any one of claims 1 to 6, characterized in that The method further comprises: Obtain the corresponding SSB, bandwidth part and scheduling performance indicators when multiple common terminal scheduling data are obtained, and each common terminal corresponds to multiple scheduling data; Calculate a statistical value of a scheduling performance indicator associated with each bandwidth part in a plurality of bandwidth parts corresponding to each SSB; According to the statistical value of the scheduling performance indicator associated with each bandwidth part in the multiple bandwidth parts corresponding to each SSB, the correspondence between the SSB and the bandwidth part is determined or updated.

8. A device for selecting a bandwidth portion, characterized in that: The device comprises: An acquisition module, configured to acquire a target SSB corresponding to the RedCap terminal in response to receiving a random access request from the RedCap terminal; A determination module is used to determine the target bandwidth part corresponding to the RedCap terminal from a pre-established correspondence between SSB and bandwidth part according to the target SSB.

9. An electronic device, characterized in that: include: A memory, a processor and a computer program stored in the memory and executable on the processor, wherein the computer program implements the bandwidth portion selection method according to any one of claims 1 to 7 when executed by the processor.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method for selecting a bandwidth portion according to any one of claims 1 to 7 is implemented.

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