Subcarrier interval switching method and device, communication equipment and storage medium

Abstract

The invention provides a subcarrier interval switching method and device, communication equipment and a storage medium, and relates to the technical field of communication, according to the subcarrier interval switching method provided by the invention, time slot adjustment can be performed on a plurality of subcarrier intervals, so that initial time slots of the plurality of subcarrier intervals are aligned with air interface time slots; and in response to the received signaling message, performing switching of different subcarrier intervals in the plurality of subcarrier intervals. According to the invention, seamless switching of subcarrier intervals can be realized, and the subcarrier interval switching efficiency is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a subcarrier spacing switching method, apparatus, communication equipment and storage medium. Background Art

[0002] 5G New Radio (NR) supports multiple different types of subcarrier spacing (SCS). Different subcarrier spacings need to be switched according to different service requirements.

[0003] However, currently, when different subcarrier intervals are switched, the conversion of time slot numbers corresponding to different subcarrier intervals is complex or impossible, resulting in the inability to achieve seamless switching of subcarrier intervals, resulting in low efficiency of subcarrier interval switching. Summary of the invention

[0004] The present disclosure provides a subcarrier spacing switching method, apparatus, communication equipment and storage medium, which can realize seamless switching of subcarrier spacing and improve the efficiency of subcarrier spacing switching.

[0005] A first aspect of the present disclosure provides a subcarrier spacing switching method, including:

[0006] Performing time slot adjustment on multiple subcarrier intervals so that initial time slots of the multiple subcarrier intervals are aligned with air interface time slots, wherein the alignment is used to make the time slot starting points of the initial time slots consistent with those of the air interface time slots;

[0007] In response to the received signaling message, switching between different subcarrier spacings is performed among the plurality of subcarrier spacings.

[0008] According to a second aspect of the present disclosure, an embodiment provides a subcarrier spacing switching device, including:

[0009] An adjustment module, configured to perform time slot adjustment on multiple subcarrier intervals so that the initial time slots of the multiple subcarrier intervals are aligned with the air interface time slots, wherein the alignment is used to make the time slot starting points of the initial time slots consistent with those of the air interface time slots;

[0010] The switching module is used to switch different subcarrier spacings among multiple subcarrier spacings in response to a received signaling message.

[0011] The third aspect embodiment of the present disclosure provides a communication device, which includes: a transceiver; a memory; a processor, which is connected to the transceiver and the memory respectively, and is configured to control the wireless signal reception and transmission of the transceiver by executing computer-executable instructions on the memory, and can implement the method of the first aspect embodiment of the present disclosure.

[0012] The fourth aspect embodiment of the present disclosure provides a computer storage medium, wherein the computer storage medium stores computer executable instructions; after the computer executable instructions are executed by a processor, the method of the first aspect embodiment of the present disclosure can be implemented.

[0013] The subcarrier spacing switching method, apparatus, communication equipment and storage medium provided in the embodiments of the present disclosure can perform time slot synchronization adjustment on multiple subcarrier spacings so that the initial time slots of the multiple subcarrier spacings are aligned with the air interface time slots. When switching between different subcarrier spacings, there is no need to perform a conversion process for the subcarrier spacing corresponding to the time slot. It is only necessary to obtain the aligned time slot of the subcarrier spacing to be switched according to the subcarrier type, so as to achieve seamless switching of different subcarrier spacings, thereby improving the efficiency of subcarrier spacing switching.

[0014] Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description or learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present disclosure will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0016] Figure 1 A schematic diagram of a subcarrier spacing switching method according to an embodiment of the present disclosure;

[0017] Figure 2 A schematic diagram of a subcarrier spacing switching method according to an embodiment of the present disclosure;

[0018] Figure 3 A schematic diagram of a principle flow of subcarrier spacing switching according to an embodiment of the present disclosure;

[0019] Figure 4 is a block diagram of a subcarrier spacing switching device according to an embodiment of the present disclosure;

[0020] Figure 5 is a block diagram of a subcarrier spacing switching device according to an embodiment of the present disclosure;

[0021] Figure 6 A schematic diagram of the structure of a communication device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0022] Embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be construed as limiting the present disclosure.

[0023] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0024] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present application. The singular forms of "a" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0025] It should be understood that, although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present application, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the embodiments of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at..." or "when..." or "in response to determination".

[0026] In the implementation of related technologies, when switching between different subcarrier spacings (SCS), the traditional solution is that the UE side will use a timer to generate a time slot interruption by setting the absolute time of the timer, obtain the initialized local time slot when searching for the service cell, and adjust the position of the next time slot interruption by tracking the timer result. For multiple subcarrier spacings, when the UE is powered on and restarted, it will first perform a time slot synchronization adjustment on a subcarrier spacing that corresponds to the air interface time slot information. When the subcarrier spacing is switched, the switched subcarrier spacing will be adjusted for time slot synchronization. However, the time slots corresponding to different subcarrier spacings may be complex to convert or cannot be converted, resulting in a certain switching delay between different subcarrier spacings, making the switching efficiency low.

[0027] To solve the above technical problems, this embodiment proposes a subcarrier spacing switching method, apparatus, communication equipment and storage medium, which can achieve seamless switching of subcarrier spacing and improve the efficiency of subcarrier spacing switching.

[0028] It is understandable that the solution provided by the present disclosure can be applied to terminal equipment UE, communication chips or other executable subjects. In the following embodiments of the present disclosure, the technical solution in the present disclosure is described by taking the execution subject as the user equipment (UE) as an example, but it does not constitute a specific limitation. Among them, the user equipment UE can be a communication device such as a mobile phone, a notebook, a tablet computer, a POS machine, and a car computer, etc., which is not limited in the present disclosure.

[0029] The subcarrier spacing switching method, apparatus, communication equipment and storage medium provided in the present application are described in detail below in conjunction with the accompanying drawings.

[0030] Figure 1 FIG. 2 is a flow chart of a subcarrier spacing switching method according to an embodiment of the present disclosure. Figure 1 As shown, the embodiment may include the following steps.

[0031] Step 101: perform time slot adjustment on multiple subcarrier intervals so that initial time slots of the multiple subcarrier intervals are aligned with air interface time slots.

[0032] Among them, the initial time slot is the time slot corresponding to the subcarrier spacing used when the terminal device UE initially accesses the base station, and is used for time slot synchronization with the air interface time slot. The air interface time slot is the time slot corresponding to the subcarrier spacing used when the base station communicates downlink with the terminal device UE. Alignment is used to make the initial time slot consistent with the time slot starting point of the air interface time slot.

[0033] In a specific application scenario, the UE can locally configure multiple different types of subcarrier spacing, where different types of subcarrier spacing can correspond to different time slot lengths. The larger the subcarrier spacing, the smaller the corresponding time slot length. The subcarrier spacing types that can be used in 5G are: 15KHz, 30KHz, 60KHz, 120KHz, etc., which are not specifically limited here. In the following embodiment steps in the present disclosure, the technical solution in the present disclosure is explained by taking the locally configured multiple subcarrier spacings including 15KHz and 30KHz as an example, but it does not constitute a specific limitation.

[0034] In one embodiment of the present disclosure, before receiving a signaling message from the network side indicating subcarrier spacing switching, such as when the UE is powered on and restarted, the time slot synchronization of multiple locally configured subcarrier spacings can be adjusted so that the initial time slots of the multiple subcarrier spacings are aligned with the air interface time slots, thereby facilitating the switching of the subcarrier spacing at any time.

[0035] Step 102: In response to the received signaling message, switch between different subcarrier spacings among multiple subcarrier spacings.

[0036] In a specific application scenario, in order for the UE to communicate uplink and downlink data normally with the network side, it is necessary to synchronize the uplink time slot corresponding to the UE with the downlink time slot of the base station. In one embodiment of the present disclosure, given that before receiving the signaling message sent by the base station, the UE has synchronized the time slots of multiple subcarrier intervals configured locally based on the air interface time slot configuration, so that the counters corresponding to the multiple subcarrier intervals are in the counting process, and the recorded time slots are adapted to the air interface time slots in real time. When switching between different subcarrier intervals, it is no longer necessary to align the time slots of the switched subcarrier intervals, thereby ensuring seamless switching of different subcarrier intervals and improving the efficiency of subcarrier interval switching.

[0037] For example, when multiple subcarrier spacings include subcarrier spacing 1 and subcarrier spacing 2, the time slot starting point of the initial time slot corresponding to subcarrier spacing 1 is A, the time slot starting point of the initial time slot corresponding to subcarrier spacing 2 is B, and the time slot starting point of the air interface time slot corresponding to the network side is C, wherein the starting positions corresponding to A, B, and C are different. In the related art, when the UE is powered on and restarted, it will first perform time slot synchronization adjustment on a subcarrier spacing (such as subcarrier spacing 1) corresponding to the air interface time slot information, and adjust the time slot starting point of subcarrier spacing 1 to be consistent with the time slot starting point of the air interface time slot, that is, adjust to position C. When the subcarrier spacing is switched (such as switching subcarrier spacing 1 to subcarrier spacing 2), it is necessary to adjust the time slot starting point of subcarrier spacing 2 according to the current time slot position of subcarrier spacing 1, so that the time slot position of subcarrier spacing 2 is adapted to the air interface time slot. However, there may be a problem of complex conversion or inability to convert between the time slots corresponding to subcarrier spacing 1 and subcarrier spacing 2, resulting in a certain switching delay, which makes the switching efficiency low. In the disclosed embodiment, before receiving the signaling message from the network side for indicating the subcarrier interval switching, the time slots of multiple subcarrier intervals can be adjusted simultaneously, so that the initial time slot of each subcarrier interval is consistent with the time slot starting point of the air interface time slot, which is equivalent to pre-adjusting the initial time slots of multiple subcarrier intervals before the subcarrier interval switching, so that the uplink time slot corresponding to each subcarrier interval is synchronized with the downlink time slot of the base station in real time. When the subcarrier interval is switched (such as switching the subcarrier interval 1 to the subcarrier interval 2), it can ensure that the time slot recorded by the subcarrier interval 2 is adapted to the air interface time slot, and it is no longer necessary to perform time slot alignment processing on the switched subcarrier interval 2, thereby improving the switching efficiency of the subcarrier interval.

[0038] In summary, according to the subcarrier spacing switching method provided by the embodiment of the present disclosure, the user equipment UE can first synchronize the time slots of multiple subcarrier spacings configured locally to align the initial time slots of multiple subcarrier spacings with the air interface time slots. When switching between different subcarrier spacings, there is no need to perform a conversion process for the subcarrier spacing corresponding to the time slot. It is only necessary to obtain the aligned time slot of the subcarrier spacing to be switched according to the subcarrier type, so as to achieve seamless switching of different subcarrier spacings, thereby improving the efficiency of subcarrier spacing switching.

[0039] Figure 2 FIG. 2 is a flow chart of a subcarrier spacing switching method according to an embodiment of the present disclosure. Figure 2 As shown, the method is applied to user equipment UE, such as Figure 2 As shown, the embodiment may include the following steps.

[0040] Step 201: Receive air interface data, where the air interface data includes air interface time slot information and synchronization signal information.

[0041] Among them, the air interface time slot information may include the time slot number and time slot boundary corresponding to the air interface time slot; the synchronization signal information may include the primary synchronization signal (PSS), the secondary synchronization signal (SSS) and other time slot signals used for time slot synchronization.

[0042] Step 202: Determine a first subcarrier spacing corresponding to air interface time slot information among multiple subcarrier spacings.

[0043] In the service cell search phase, the SCS of the synchronization signal block pattern (SSB) depends on the operating frequency band of the new radio (NR). In one embodiment of the present disclosure, the air interface subcarrier spacing can be blindly detected based on the new radio operating frequency band, that is, by comparing each subcarrier spacing in a plurality of subcarrier spacings with the air interface subcarrier spacing, a subcarrier spacing with the highest adaptability to the air interface time slot information is determined from the plurality of subcarrier spacings as the first subcarrier spacing. For example, Figure 3 As shown, when multiple subcarrier spacings include 15KHz and 30KHz, after a blind detection process, it can be determined that the first subcarrier spacing corresponding to the new air interface working frequency band is 15KHz or 30KHz.

[0044] Step 203: Based on the synchronization signal information, adjust the initial time slot of the first subcarrier interval to obtain a first initial time slot of the first subcarrier interval, where the first initial time slot is a time slot aligned with the air interface time slot under the first subcarrier interval.

[0045] In one embodiment of the present disclosure, time slot synchronization may be performed according to the primary synchronization signal. Specifically, Figure 3 As shown, the opening time of the receiving window and the appearance time of the main synchronization signal correlation peak in the air interface data can be determined first, and then the time variables of the opening time of the receiving window and the appearance time of the main synchronization signal correlation peak in the air interface data are calculated, and the number of time slots corresponding to the first subcarrier interval of the time variable is determined according to the time slot length corresponding to the first subcarrier interval, and finally the time slot number of the initial time slot of the first subcarrier interval and the number of time slots are added to determine the time slot number of the first initial time slot of the first subcarrier interval, wherein the above-mentioned time variable is expressed as a time change amount, which can be a time difference, etc.

[0046] Accordingly, the steps of the embodiment may include: determining the time variable of the opening time of the receiving window and the time when the peak related to the main synchronization signal in the air interface data appears, and the receiving window is used to receive the air interface data; determining the number of time slots corresponding to the first subcarrier interval corresponding to the time variable; adjusting the time slot starting point of the initial time slot corresponding to the first subcarrier interval based on the number of time slots, and obtaining the first initial time slot of the first subcarrier interval, wherein the time slot starting point of the first initial time slot is consistent with the time slot starting point of the air interface time slot. Among them, the slot number range of different subcarrier types is different, and the time slot length is different. The relationship between SCS and time slot in NR can be referred to as shown in Table 1 below;

[0047] Table 1: SCS and time slots in NR

[0048]

[0049] In a specific application scenario, after calculating the time variable △t between the opening time of the receiving window and the appearance time of the peak related to the main synchronization signal in the air interface data, △t can be divided by the time slot length corresponding to the first subcarrier interval, and the integer quotient obtained can be used as the time variable corresponding to the number of time slots △Slot under the first subcarrier interval, and the remainder when it cannot be divided evenly can be used as △qts. Furthermore, the number of time slots can be added to the time slot number of the initial time slot of the first subcarrier interval to determine the time slot number of the first initial time slot of the first subcarrier interval, and △qts can be used to adjust the frame header position of the subframe where the first initial time slot is located, so as to align the first initial time slot with the air interface time slot. When determining the first initial time slot of the first subcarrier interval, it can be achieved by the following formula:

[0050] Slot 空口boundary =Slot 本地boundary +△Slot;

[0051] Slot 本地boundary =Slot 空口boundary

[0052] In the formula, Slot 空口boundary The timeslot number of the air interface timeslot. 本地boundary is the time slot number of the first initial time slot, △Slot is the number of time slots corresponding to the first subcarrier spacing of the time variable, and the time variable is the time variable △t of the opening time of the receiving window and the appearance time of the correlation peak of the main synchronization signal in the air interface data.

[0053] Exemplarily, if the multiple subcarrier intervals configured locally include 15KHz and 30KHz, the first subcarrier interval is determined to be 15KHz through blind detection, and the time variable △t of the opening time of the receiving window and the peak occurrence time of the main synchronization signal in the air interface data is calculated to be 5.1ms. Then, according to the time slot length (1ms) corresponding to the first subcarrier interval, it can be determined that the time variable △t corresponds to the number of time slots △Slot under the first subcarrier interval as 5, and △qts as 0.1ms, and then the time slot number of the initial time slot of the first subcarrier interval (such as the corresponding time slot number is 0) and the time slot number △Slot are added to determine the time slot number of the first initial time slot of the first subcarrier interval, that is, the time slot boundary position of the time slot number 5 corresponding to the first subcarrier interval. Then, the frame header position of the subframe where the first initial time slot is located can be adjusted based on △qts, so as to achieve alignment of the first initial time slot with the air interface time slot.

[0054] Exemplarily, if the multiple subcarrier intervals configured locally include 15KHz and 30KHz, the first subcarrier interval is determined to be 30KHz through blind detection, and the time variable △t of the opening time of the receiving window and the peak occurrence time of the main synchronization signal in the air interface data is calculated to be 5.1ms. Then, according to the time slot length (0.5ms) corresponding to the first subcarrier interval, it can be determined that the time variable △t corresponds to the number of time slots △Slot under the first subcarrier interval as 10, and △qts as 0.1ms, and then the time slot number of the initial time slot of the first subcarrier interval (such as the corresponding time slot number is 0) and the time slot number △Slot are added to determine the time slot number of the first initial time slot of the first subcarrier interval, that is, the time slot boundary position of the corresponding time slot number 10 under the first subcarrier interval. Then, the frame header position of the subframe where the first initial time slot is located can be adjusted based on △qts, so as to achieve alignment of the first initial time slot with the air interface time slot.

[0055] Step 204: Update a second initial time slot of a second subcarrier spacing in the plurality of subcarrier spacings based on the first initial time slot so that the second initial time slot is aligned with the first initial time slot, wherein the second subcarrier spacing is a subcarrier spacing in the plurality of subcarrier spacings except the first subcarrier spacing.

[0056] In one embodiment of the present disclosure, after the alignment of the first initial time slot with the air interface time slot is completed, the aligned first initial time slot can be used to determine the second initial time slot aligned with the air interface time slot under the second subcarrier interval through the conversion relationship. Specifically, the initial time slot of the second subcarrier interval can be firstly subjected to a modulo operation to determine the phase value (0 or 1) of the second subcarrier interval, and further based on the phase value and the time slot conversion relationship between the first subcarrier interval and the second subcarrier interval, the second initial time slot aligned with the first initial time slot (i.e. aligned with the air interface time slot) under the second subcarrier interval is converted. Accordingly, the steps of the embodiment may include: determining the phase value of the second subcarrier interval; based on the phase value and the first initial time slot, adjusting the time slot starting point of the initial time slot corresponding to the second subcarrier interval to obtain the second initial time slot of the second subcarrier interval, wherein the time slot starting point of the second initial time slot is consistent with the time slot starting point of the first initial time slot.

[0057] For example, if the locally configured multiple subcarrier spacings include 15KHz and 30KHz, the first subcarrier spacing is determined to be 15KHz and the second subcarrier spacing is 30KHz through blind detection. In one embodiment of the present disclosure, a modulo operation may be performed on the initial time slot of the second subcarrier spacing to determine the phase value of the second subcarrier spacing: Slot local boundary_scs＝30k %2=0, or Slot 本地boundary_scs＝30k %2=1. Further, based on the phase value and the time slot conversion relationship between the first subcarrier spacing and the second subcarrier spacing, the second initial time slot under the second subcarrier spacing can be converted: As a possible application scenario, in the Slot local boundary_scs＝30k When %2=0, the converted second initial time slot can be: Slot 本地boundary_scs＝30k =2*Slot 本地boundary_scs＝15k +0; As a possible application scenario, in Slot 本地boundary_scs＝30k When %2=1, the converted second initial time slot can be: Slot 本地boundary_scs＝30k =2*Slot 本地boundary_scs＝15k +1.

[0058] For example, if the multiple subcarrier spacings configured locally include 15KHz and 30KHz, the first subcarrier spacing is determined to be 30KHz and the second subcarrier spacing is 15KHz through blind detection. In one embodiment of the present disclosure, a modulo operation may be performed on the initial time slot of the second subcarrier spacing to determine the phase value of the first subcarrier spacing: Slot local boundary_scs＝30k %2=0, or Slot 本地boundary_scs＝30k %2=1. Further, based on the phase value and the time slot conversion relationship between the first subcarrier spacing and the second subcarrier spacing, the second initial time slot under the second subcarrier spacing can be converted: As a possible application scenario, in the Slot localboundary_scs＝30k When %2=0, the converted second initial time slot can be: Slot 本地boundary_scs＝15k =(Slot 本地boundary_scs＝30k –0) / 2; As a possible application scenario, in Slot 本地boundary_scs＝30k When %2=1, the converted second initial time slot can be: Slot 本地boundary_scs＝15k =(Slot 本地boundary_scs＝30k –1) / 2.

[0059] Step 205: Update the first initial time slot to the time slot counter corresponding to the first subcarrier spacing, and update the second initial time slot to the time slot counter corresponding to the second subcarrier spacing.

[0060] In a specific application scenario, the slot timer can be used to complete the timing tracking of the cell in the NR and the real-time counting of the slot number. In one embodiment of the present disclosure, after determining the first initial time slot and the second initial time slot aligned with the air interface time slot, the first initial time slot can be updated to the time slot counter corresponding to the first subcarrier interval, and the second initial time slot can be updated to the time slot counter corresponding to the second subcarrier interval, and the first initial time slot is further used as the counting starting point of the time slot counter corresponding to the first subcarrier interval for subsequent real-time counting, and the second initial time slot is used as the counting starting point of the time slot counter corresponding to the second subcarrier interval for subsequent real-time counting, thereby ensuring that the two time slot counters can keep the counting time slots in real-time alignment during the time slot counting process, so as to facilitate the rapid switching of the subcarrier interval at any time.

[0061] Step 206: In response to the received signaling message, switch between different subcarrier spacings among the multiple subcarrier spacings.

[0062] In a possible application scenario, before executing the steps of this embodiment, the steps of the embodiment may also include: receiving a signaling message sent by a base station, the signaling message is used to indicate the target subcarrier interval to be switched, and the target subcarrier interval is any subcarrier interval among multiple subcarrier intervals. Accordingly, in one embodiment of the present disclosure, the currently configured subcarrier interval among multiple subcarrier intervals can be switched to the target subcarrier interval. In view of the fact that the currently configured subcarrier interval and the target subcarrier interval have been aligned with the air interface time slot in the previous time slot adjustment, when switching the subcarrier interval, it is no longer necessary to convert the time slot of the target subcarrier interval in combination with the air interface time slot, thereby facilitating the rapid switching of the subcarrier interval.

[0063] In summary, according to the subcarrier spacing switching method provided by the embodiment of the present disclosure, the user equipment UE can first synchronize the time slots of multiple subcarrier spacings configured locally to align the initial time slots of multiple subcarrier spacings with the air interface time slots. When switching between different subcarrier spacings, there is no need to perform a conversion process for the subcarrier spacing corresponding to the time slot. It is only necessary to obtain the aligned time slot of the subcarrier spacing to be switched according to the subcarrier type, so as to achieve seamless switching between different subcarrier spacings, thereby improving the efficiency of subcarrier spacing switching.

[0064] In the above embodiments provided by the present application, the method provided by the embodiment of the present application is introduced from the perspective of the user equipment UE. In order to implement the various functions in the method provided by the above embodiments of the present application, the user equipment UE may include a hardware structure and a software module, and implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. One of the above functions may be executed in the form of a hardware structure, a software module, or a hardware structure plus a software module.

[0065] Corresponding to the subcarrier spacing switching methods provided in the above-mentioned embodiments, the present disclosure further provides a subcarrier spacing switching device. Since the subcarrier spacing switching device provided in the embodiment of the present disclosure corresponds to the subcarrier spacing switching methods provided in the above-mentioned embodiments, the implementation method of the subcarrier spacing switching method is also applicable to the subcarrier spacing switching device provided in this embodiment, and will not be described in detail in this embodiment.

[0066] Figure 4 A schematic structural diagram of a subcarrier spacing switching device 300 provided in an embodiment of the present disclosure, wherein the subcarrier spacing switching device 300 may be executed by a user equipment UE.

[0067] like Figure 4 , the device 300 comprises:

[0068] The adjustment module 310 may be used to adjust the time slots of the multiple subcarrier intervals so that the initial time slots of the multiple subcarrier intervals are aligned with the air interface time slots, and the alignment is used to make the time slot starting points of the initial time slots consistent with the air interface time slots;

[0069] The switching module 320 may be configured to switch between different subcarrier spacings in a plurality of subcarrier spacings in response to a received signaling message.

[0070] In some embodiments of the present disclosure, the adjustment module 310 can be used to receive air interface data, which includes air interface time slot information and synchronization signal information; determine a first subcarrier interval corresponding to the air interface time slot information among multiple subcarrier intervals; based on the synchronization signal information, adjust the initial time slot of the first subcarrier interval to obtain a first initial time slot of the first subcarrier interval, the first initial time slot being a time slot aligned with the air interface time slot under the first subcarrier interval; update a second initial time slot of a second subcarrier interval among multiple subcarrier intervals based on the first initial time slot to align the second initial time slot with the first initial time slot, wherein the second subcarrier interval is a subcarrier interval among multiple subcarrier intervals except the first subcarrier interval.

[0071] In some embodiments of the present disclosure, the adjustment module 310 can be used to determine the time variable between the opening time of the receiving window and the appearance time of the peak related to the main synchronization signal in the air interface data, and the receiving window is used to receive the air interface data; determine the number of time slots corresponding to the first subcarrier interval corresponding to the time variable; adjust the time slot starting point of the initial time slot corresponding to the first subcarrier interval based on the number of time slots, and obtain the first initial time slot of the first subcarrier interval, wherein the time slot starting point of the first initial time slot is consistent with the time slot starting point of the air interface time slot.

[0072] In some embodiments of the present disclosure, the adjustment module 310 can be used to determine the phase value of the second subcarrier interval; based on the phase value and the first initial time slot, adjust the time slot starting point of the initial time slot corresponding to the second subcarrier interval to obtain the second initial time slot of the second subcarrier interval, wherein the time slot starting point of the second initial time slot is consistent with the time slot starting point of the first initial time slot.

[0073] In some embodiments of the present disclosure, Figure 5 As shown, the device 300 may further include: an updating module 330;

[0074] The updating module 330 may be used to update the first initial time slot to the time slot counter corresponding to the first subcarrier spacing; and update the second initial time slot to the time slot counter corresponding to the second subcarrier spacing.

[0075] In some embodiments of the present disclosure, Figure 5 As shown, the device 300 may further include: a receiving module 340;

[0076] The receiving module 340 may be used to receive a signaling message sent by a base station, where the signaling message is used to indicate a target subcarrier spacing to be switched, where the target subcarrier spacing is any subcarrier spacing among a plurality of subcarrier spacings.

[0077] In some embodiments of the present disclosure, the switching module 320 may be configured to switch a currently configured subcarrier spacing among a plurality of subcarrier spacings to a target subcarrier spacing.

[0078] See also Figure 6 , Figure 6 1 is a schematic diagram of the structure of a communication device 1400 provided in an embodiment of the present application. The communication device 1400 may be a network device, or a user device, or a chip, a chip system, or a processor that supports the network device to implement the above method, or a chip, a chip system, or a processor that supports the user device to implement the above method. The device may be used to implement the method described in the above method embodiment, and the details may refer to the description in the above method embodiment.

[0079] The communication device 1400 may include one or more processors 1401. The processor 1401 may be a general-purpose processor or a dedicated processor, etc. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process the communication protocol and communication data, and the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a computer program, and process the data of the computer program.

[0080] Optionally, the communication device 1400 may further include one or more memories 1402, on which a computer program 1404 may be stored, and the processor 1401 executes the computer program 1404 so that the communication device 1400 performs the method described in the above method embodiment. Optionally, data may also be stored in the memory 1402. The communication device 1400 and the memory 1402 may be provided separately or integrated together.

[0081] Optionally, the communication device 1400 may further include a transceiver 1405 and an antenna 1406. The transceiver 1405 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., for implementing a transceiver function. The transceiver 1405 may include a receiver and a transmitter, the receiver may be referred to as a receiver or a receiving circuit, etc., for implementing a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., for implementing a transmitting function.

[0082] Optionally, the communication device 1400 may further include one or more interface circuits 1407. The interface circuit 1407 is used to receive code instructions and transmit them to the processor 1401. The processor 1401 executes the code instructions to enable the communication device 1400 to execute the method described in the above method embodiment.

[0083] In one implementation, the processor 1401 may include a transceiver for implementing receiving and sending 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 the receiving and sending functions may be separate or integrated. The above-mentioned transceiver circuit, interface, or interface circuit may be used for reading and writing code / data, or the above-mentioned transceiver circuit, interface, or interface circuit may be used for transmitting or delivering signals.

[0084] In one implementation, the processor 1401 may store a computer program 1403, which runs on the processor 1401 and enables the communication device 1400 to perform the method described in the above method embodiment. The computer program 1403 may be fixed in the processor 1401, in which case the processor 1401 may be implemented by hardware.

[0085] In one implementation, the communication device 1400 may include a circuit that can implement the functions of sending or receiving or communicating in the aforementioned method embodiment. The processor and transceiver described in the present application can be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (nMetal-oxide-semiconductor, NMOS), P-type metal oxide semiconductor (positive channelmetal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0086] The communication device described in the above embodiments may be a network device or a user device, but the scope of the communication device described in the present application is not limited thereto, and the structure of the communication device may not be limited thereto. Figure 6 The communication device may be an independent device or may be part of a larger device. For example, the communication device may be:

[0087] (1) Independent integrated circuit IC, or chip, or chip system or subsystem;

[0088] (2) having a set of one or more ICs, and optionally, the IC set may also include a storage component for storing data and computer programs;

[0089] (3) ASIC, such as modem;

[0090] (4) Modules that can be embedded in other devices;

[0091] (5) Receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handheld devices, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.;

[0092] (6)Others

[0093] Those skilled in the art may also understand that the various illustrative logical blocks and steps listed in the embodiments of the present application may be implemented by electronic hardware, computer software, or a combination of the two. Whether such functions are implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art may use various methods to implement the functions for each specific application, but such implementation should not be understood as exceeding the scope of protection of the embodiments of the present application.

[0094] The present application also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.

[0095] In the above embodiments, the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center that includes one or more available media. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)).

[0096] The embodiments or examples of the present disclosure are not exhaustive, but are only illustrative of some embodiments or examples, and are not intended to be specific limitations on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment or example can be implemented as an independent example, and the steps can be combined arbitrarily. For example, the scheme after removing some steps in a certain embodiment or example can also be implemented as an independent example, and the order of the steps in a certain embodiment or example can be arbitrarily exchanged. In addition, the optional methods or optional examples in a certain embodiment or example can be combined arbitrarily; in addition, the various embodiments or examples can be combined arbitrarily, for example, some or all steps of different embodiments or examples can be combined arbitrarily, and a certain embodiment or example can be combined arbitrarily with the optional methods or optional examples of other embodiments or examples.

[0097] In some implementation schemes or examples, "in response to ...", "in the case of ...", "at the time of ...", "when ...", "if ...", "if ...", etc. in the present disclosure may be replaced with each other.

[0098] In some embodiments or examples, the description methods of the present disclosure, such as "A or B", "A and / or B", "at least one of A and B", "A in one case, B in another case", "in response to one case A, in response to another case B", etc., may include at least one of the following technical solutions according to the situation: executing A independently of B, that is, A in some embodiments or examples; executing B independently of A, that is, B in some embodiments or examples; selectively executing A and B, that is, selecting to execute from A and B in some embodiments or examples; executing both A and B, that is, A and B in some embodiments or examples.

[0099] In some embodiments or examples, “including A”, “comprising A”, “used to indicate A” and “carrying A” in the present disclosure may be interpreted as directly carrying A or indirectly indicating A.

[0100] In addition, each element, each row, or each column in the table involved in the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0101] A person skilled in the art may understand that the various numerical numbers such as first and second involved in the present application are only used for the convenience of description and are not used to limit the scope of the embodiments of the present application, and also indicate the order of precedence.

[0102] At least one in the present application can also be described as one or more, and a plurality can be two, three, four or more, which is not limited in the present application. In the embodiments of the present application, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", etc., and there is no order of precedence or size between the technical features described by the "first", "second", "third", "A", "B", "C" and "D".

[0103] As used herein, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, apparatus, and / or device (e.g., disk, optical disk, memory, programmable logic device (PLD)) for providing machine instructions and / or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal. The term "machine-readable signal" refers to any signal for providing machine instructions and / or data to a programmable processor.

[0104] The systems and techniques described herein may be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), and the Internet.

[0105] A computer system may include clients and servers. Clients and servers are generally remote from each other and usually interact through a communication network. The relationship of client and server is generated by computer programs running on respective computers and having a client-server relationship to each other.

[0106] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0107] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station (radio base station)", "fixed station (fixed station)", "node (node)", "access point (access point)", "transmission point (TP)", "reception point (reception point, RP)", "transmission / reception point (transmission / reception point, TRP)", "panel (panel)", "antenna panel (antenna panel)", "antenna array (antenna array)", "cell (cell)", "macro cell (macro cell)", "small cell (small cell)", "femto cell (femto cell)", "pico cell (pico cell)", "sector (sector)", "cell group (cell)", "serving cell (serving cell)", "carrier (carrier)", "component carrier (component carrier)", "bandwidth part (bandwidth part, BWP)" and the like can be used interchangeably.

[0108] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client and the like can be used interchangeably.

[0109] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the access network device, the core network device, or the network device and the communication between the terminals is replaced by the communication between multiple terminals (for example, it can also be referred to as device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it can also be set as a structure in which the terminal has all or part of the functions of the access network device. In addition, the language such as "uplink" and "downlink" can also be replaced by the language corresponding to the communication between the terminals (for example, "side"). For example, the uplink channel, the downlink channel, etc. can be replaced by the side channel, and the uplink, the downlink, etc. can be replaced by the side link.

[0110] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may also be configured to have a structure that has all or part of the functions of the terminal.

[0111] In some embodiments, the terms "frame", "radio frame", "subframe", "slot", "sub-slot", "mini-slot", "symbol", "symbol", "transmission time interval (TTI)" and so on can be used interchangeably.

[0112] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved, and this document does not limit this.

[0113] In addition, it should be understood that the various embodiments of the present application may be implemented individually or in combination with other embodiments when the solution permits.

[0114] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example 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 performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0115] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0116] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A subcarrier spacing switching method, characterized in that: include: Performing time slot adjustment on multiple subcarrier intervals so that initial time slots of the multiple subcarrier intervals are aligned with air interface time slots, wherein the alignment is used to make the time slot starting points of the initial time slots consistent with those of the air interface time slots; In response to the received signaling message, switching between different subcarrier spacings is performed among the plurality of subcarrier spacings.

2. The method according to claim 1, characterized in that: The step of adjusting the time slots of the plurality of subcarrier intervals so that the initial time slots of the plurality of subcarrier intervals are aligned with the air interface time slots includes: Receiving air interface data, wherein the air interface data includes air interface time slot information and synchronization signal information; Determine a first subcarrier spacing corresponding to the air interface timeslot information among the multiple subcarrier spacings; Based on the synchronization signal information, adjust the initial time slot of the first subcarrier spacing to obtain a first initial time slot of the first subcarrier spacing, where the first initial time slot is a time slot aligned with an air interface time slot under the first subcarrier spacing; A second initial time slot of a second subcarrier spacing among the multiple subcarrier spacings is updated based on the first initial time slot to align the second initial time slot with the first initial time slot, wherein the second subcarrier spacing is a subcarrier spacing among the multiple subcarrier spacings except the first subcarrier spacing.

3. The method according to claim 2, characterized in that The adjusting, based on the synchronization signal information, the initial time slot of the first subcarrier spacing to obtain the first initial time slot of the first subcarrier spacing includes: Determine a time variable between an opening time of a receiving window and an appearance time of a peak related to a primary synchronization signal in the air interface data, wherein the receiving window is used to receive the air interface data; Determine the number of time slots corresponding to the first subcarrier spacing of the time variable; Based on the number of time slots, a time slot starting point of an initial time slot corresponding to the first subcarrier interval is adjusted to obtain a first initial time slot of the first subcarrier interval, wherein a time slot starting point of the first initial time slot is consistent with a time slot starting point of the air interface time slot.

4. The method according to claim 3, characterized in that: The updating, based on the first initial time slot, of a second initial time slot of a second subcarrier interval in the plurality of subcarrier intervals so that the second initial time slot is aligned with the first initial time slot comprises: determining a phase value of the second subcarrier spacing; Based on the phase value and the first initial time slot, adjust the time slot starting point of the initial time slot corresponding to the second subcarrier interval to obtain a second initial time slot of the second subcarrier interval, wherein the time slot starting point of the second initial time slot is consistent with the time slot starting point of the first initial time slot.

5. The method according to claim 4, characterized in that The method further comprises: Updating the first initial time slot to a time slot counter corresponding to the first subcarrier spacing; The second initial time slot is updated to a time slot counter corresponding to the second subcarrier spacing.

6. The method according to claim 1, characterized in that The method further comprises: A signaling message sent by a base station is received, where the signaling message is used to indicate a target subcarrier spacing to be switched, where the target subcarrier spacing is any subcarrier spacing among the multiple subcarrier spacings.

7. The method according to claim 6, characterized in that The switching of different subcarrier spacings among a plurality of subcarrier spacings in response to a signaling message sent by a base station includes: Switching a currently configured subcarrier spacing among the multiple subcarrier spacings to the target subcarrier spacing.

8. A subcarrier spacing switching device, characterized in that: include: An adjustment module, configured to perform time slot adjustment on multiple subcarrier intervals so that the initial time slots of the multiple subcarrier intervals are aligned with the air interface time slots, wherein the alignment is used to make the time slot starting points of the initial time slots consistent with those of the air interface time slots; The switching module is used to switch different subcarrier spacings among multiple subcarrier spacings in response to a received signaling message.

9. A communication device, wherein: include: Transceiver; Memory; A processor is connected to the transceiver and the memory, respectively, and is configured to control the wireless signal reception and transmission of the transceiver by executing computer executable instructions on the memory, and can implement any one of the methods of claims 1-7.

10. A computer storage medium, wherein: The computer storage medium stores computer executable instructions; after the computer executable instructions are executed by the processor, the method described in any one of claims 1 to 7 can be implemented.

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