Subcarrier spacing switching method and apparatus, communication device, and storage medium

Abstract

The present disclosure provides a subcarrier spacing switching method and device, communication equipment and storage medium, and relates to the technical field of communication. According to the subcarrier spacing switching method provided by the present disclosure, the time slots of multiple subcarrier spacings can be adjusted, so that the initial time slots of the multiple subcarrier spacings are aligned with the air interface time slots. In response to a received signaling message, switching between different subcarrier spacings in the multiple subcarrier spacings is performed. The present disclosure can realize seamless switching of subcarrier spacings and improve the efficiency of subcarrier spacing switching.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and particularly relates to a subcarrier spacing switching method and device, a communication device and a storage medium. BACKGROUND

[0002] 5G New Radio (NR) supports multiple different types of subcarrier spacing (SCS). According to different service requirements, switching of different subcarrier spacings is needed.

[0003] However, at present, when switching between different subcarrier spacings, the conversion of slot numbers corresponding to different subcarrier spacings is complex or cannot be converted, which leads to the inability to achieve seamless switching of subcarrier spacings, and thus the efficiency of subcarrier spacing switching is low. SUMMARY

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

[0005] The first aspect embodiment of the present disclosure provides a subcarrier spacing switching method, comprising:

[0006] adjusting slots of multiple subcarrier spacings, so that initial slots of the multiple subcarrier spacings are aligned with air interface slots, and the alignment is used to make the initial slots consistent with slot starting points of the air interface slots;

[0007] switching between different subcarrier spacings in the multiple subcarrier spacings in response to a received signaling message.

[0008] The second aspect embodiment of the present disclosure provides a subcarrier spacing switching device, comprising:

[0009] an adjusting module configured to adjust slots of multiple subcarrier spacings, so that initial slots of the multiple subcarrier spacings are aligned with air interface slots, and the alignment is used to make the initial slots consistent with slot starting points of the air interface slots;

[0010] a switching module configured to switch between different subcarrier spacings in the multiple subcarrier spacings in response to a received signaling message.

[0011] The third aspect embodiment of the present disclosure provides a communication device, comprising: a transceiver; a memory; and a processor connected with the transceiver and the memory respectively, configured to control wireless signal transceiving of the transceiver by executing computer executable instructions on the memory, and capable of implementing the method of the first aspect embodiment of the present disclosure.

[0012] A fourth aspect of the present disclosure provides a computer storage medium, wherein the computer storage medium stores computer executable instructions; the computer executable instructions, when executed by a processor, enable the method of the first aspect of the present disclosure.

[0013] The subcarrier spacing switching method, device, communication device and storage medium provided by the embodiments of the present disclosure can perform time slot synchronization adjustment on multiple subcarrier spacings, align the initial time slots of the multiple subcarrier spacings with air interface time slots, and when switching between different subcarrier spacings, no conversion process of time slots corresponding to the subcarrier spacings is needed, only the aligned time slots of the subcarrier spacing to be switched are obtained according to the subcarrier type, and then seamless switching between different subcarrier spacings can be realized, and the efficiency of subcarrier spacing switching can be improved.

[0014] Additional aspects and advantages of the present disclosure will be described in part in the description that follows, and in part will become apparent to those skilled in the art from the description, or by practicing the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

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

[0016] Figure 1 A flowchart of a subcarrier spacing switching method according to an embodiment of the present disclosure is shown in FIG. 1;

[0017] Figure 2 A flowchart of a subcarrier spacing switching method according to an embodiment of the present disclosure is shown in FIG. 1;

[0018] Figure 3 A principle flowchart of a subcarrier spacing switching method according to an embodiment of the present disclosure is shown in FIG. 2;

[0019] Figure 4 A block diagram of a subcarrier spacing switching device according to an embodiment of the present disclosure is shown in FIG. 3;

[0020] Figure 5 A block diagram of a subcarrier spacing switching device according to an embodiment of the present disclosure is shown in FIG. 3;

[0021] Figure 6 A structural diagram of a communication device according to an embodiment of the present disclosure is shown in FIG. 4. DETAILED DESCRIPTION

[0022] The embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the drawings, in which the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present disclosure, and cannot be understood as limiting the present disclosure.

[0023] Embodiments of the present application are described below in detail, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and are not to be understood as limiting the present application. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

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

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

[0026] In the related art implementation, when switching different subcarrier spacing (SCS), the traditional solution is to use a timer designed on the UE side to generate a slot interruption by setting the absolute time of the timer, and the serving cell finds the initialized local slot when searching, and adjusts the position of the next slot interruption generated by the timer result. For multiple subcarrier spacings, the UE will first perform slot synchronization adjustment on the subcarrier spacing corresponding to the air interface slot information when starting up, and then perform slot synchronization adjustment on the switched subcarrier spacing when switching. However, the slots corresponding to different subcarrier spacings may have conversion complexity or cannot be converted, resulting in a certain switching delay between different subcarrier spacings, which makes the switching efficiency low.

[0027] To solve the above technical problems, the present embodiment provides a subcarrier spacing switching method and device, communication equipment and storage medium, which can realize seamless switching of subcarrier spacing and improve the efficiency of subcarrier spacing switching.

[0028] It can be understood that the scheme provided by the present disclosure can be applied to a terminal device UE, a communication chip or other executable subjects. In the following embodiments of the present disclosure, the subject performing the scheme is taken as an example of a user equipment (UE), and the technical scheme in the present disclosure is described, but this does not constitute a specific limitation. The user equipment UE can be a communication device such as a mobile phone, a notebook, a tablet computer, a POS machine, and a vehicle-mounted computer, and is not limited in the present disclosure.

[0029] The subcarrier spacing switching method, device, communication device and storage medium provided by the present application will be described in detail below in combination with the drawings.

[0030] Figure 1 A flowchart of a subcarrier spacing switching method according to an embodiment of the present disclosure is shown. As shown in Figure 1 the embodiment, the following steps can be included.

[0031] Step 101, time slot adjustment is performed on a plurality of subcarrier spacings, so that the initial time slots of the plurality of subcarrier spacings are aligned with the air interface time slots.

[0032] The initial time slot is the time slot corresponding to the subcarrier spacing used by the terminal device UE when initially accessing the base station, which 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 by the base station when communicating with the terminal device UE in downlink, which is used to make the initial time slot consistent with the time slot start point of the air interface time slot.

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

[0034] In an embodiment of the present disclosure, before receiving the signaling message from the network side for indicating the subcarrier spacing switching, the time slots of the plurality of subcarrier spacings configured locally can be synchronized and adjusted first, such as when the UE is powered on or restarted, so that the initial time slots of the plurality of 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, switching between different subcarrier spacings in the plurality of subcarrier spacings.

[0036] In a specific application scenario, in order to enable the UE to normally perform uplink and downlink data communication with the network side, the uplink time slot corresponding to the UE needs to be synchronized and aligned with the downlink time slot of the base station. In an embodiment of the present disclosure, in view of the fact that before receiving the signaling message sent by the base station, the UE has performed time slot synchronization adjustment on the locally configured multiple subcarrier intervals based on the air interface time slot configuration, so that the counters corresponding to the multiple subcarrier intervals adapt to the air interface time slot in the counting process. When switching between different subcarrier intervals, there is no need to perform time slot alignment on the switched subcarrier interval, thereby ensuring seamless switching between different subcarrier intervals and improving the efficiency of subcarrier interval switching.

[0037] For example, when the multiple subcarrier intervals include subcarrier interval 1 and subcarrier interval 2, the time slot starting point of the initial time slot corresponding to the subcarrier interval 1 is A, the time slot starting point of the initial time slot corresponding to the subcarrier interval 2 is B, and the time slot starting point corresponding to the air interface time slot on the network side is C, wherein the starting points corresponding to A, B and C are different. In the related art, when the UE is powered on and restarted, the time slot synchronization adjustment is first performed on one subcarrier interval (such as subcarrier interval 1) corresponding to the air interface time slot information, and the time slot starting point of the subcarrier interval 1 is adjusted to be consistent with the time slot starting point of the air interface time slot, that is, to the position C. When switching between subcarrier intervals occurs (such as switching from subcarrier interval 1 to subcarrier interval 2), the time slot starting point of the subcarrier interval 2 needs to be adjusted according to the current time slot position of the subcarrier interval 1, so that the time slot position of the subcarrier interval 2 adapts to the air interface time slot. However, there may be conversion complexity or conversion problems between the time slots corresponding to the subcarrier interval 1 and the subcarrier interval 2, resulting in a certain switching delay and low switching efficiency. In an embodiment of the present disclosure, before receiving the signaling message sent by the network side for indicating the switching between subcarrier intervals, the time slots of the multiple subcarrier intervals can be adjusted at the same time, 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 the multiple subcarrier intervals before switching between the subcarrier intervals, so that the uplink time slot corresponding to each subcarrier interval is real-time synchronized with the downlink time slot of the base station. When switching between subcarrier intervals occurs (such as switching from subcarrier interval 1 to subcarrier interval 2), it can be ensured that the time slot recorded by the subcarrier interval 2 adapts to the air interface time slot, and there is no need 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 perform time slot synchronization adjustment on the locally configured 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 of the time slots corresponding to the subcarrier spacings. Only the aligned time slots of the subcarrier spacing to be switched are obtained according to the subcarrier type, and seamless switching between different subcarrier spacings can be realized, which can improve the efficiency of subcarrier spacing switching.

[0039] Figure 2 A flowchart of a subcarrier spacing switching method according to an embodiment of the present disclosure is shown. As shown in Figure 2 the method is applied to user equipment UE, as shown in Figure 2 the embodiment and can include the following steps.

[0040] Step 201, receiving air interface data, the air interface data containing air interface time slot information and synchronization signal information.

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

[0042] Step 202, determining a first subcarrier spacing corresponding to the air interface time slot information from multiple subcarrier spacings.

[0043] In the service cell search stage, the SCS of the Synchronization Signal Block (SSB) pattern depends on the operation band of the New Radio (NR). In an embodiment of the present disclosure, the air interface subcarrier spacing can be blindly detected based on the New Radio operation band, that is, by comparing each subcarrier spacing in the multiple subcarrier spacings with the air interface subcarrier spacing, the one with the highest degree of adaptation to the air interface time slot information is determined from the multiple subcarrier spacings as the first subcarrier spacing. For example, as shown in Figure 3 when the multiple subcarrier spacings include 15KHz and 30KHz, the first subcarrier spacing corresponding to the New Radio operation band can be determined as 15KHz or 30KHz through the blind detection process.

[0044] In step 203, the initial slot of the first subcarrier spacing is adjusted based on the synchronization signal information to obtain a first initial slot of the first subcarrier spacing, and the first initial slot is a slot of the first subcarrier spacing that is aligned with the air interface slot.

[0045] In one embodiment of the present disclosure, the slot synchronization can be performed according to the primary synchronization signal. Specifically, as shown in FIG. 2, the starting time of the receiving window can be determined first, and then the occurrence time of the primary synchronization signal related peak in the air interface data is determined. Then, the time variable of the starting time of the receiving window and the occurrence time of the primary synchronization signal related peak in the air interface data is calculated. According to the slot length corresponding to the first subcarrier spacing, the slot number corresponding to the time variable under the first subcarrier spacing is determined. Finally, the slot number of the first initial slot of the first subcarrier spacing is determined by adding the slot number of the initial slot of the first subcarrier spacing and the slot number, and the slot number of the first initial slot of the first subcarrier spacing is determined. Figure 3

[0046] Correspondingly, the embodiment steps can include: determining the time variable of the starting time of the receiving window and the occurrence time of the primary synchronization signal related peak in the air interface data, the receiving window being used for receiving the air interface data; determining the slot number corresponding to the time variable under the first subcarrier spacing; and adjusting the slot start point of the initial slot corresponding to the first subcarrier spacing based on the slot number to obtain the first initial slot of the first subcarrier spacing, wherein the slot start point of the first initial slot is consistent with the slot start point of the air interface slot. The slot number ranges of different subcarrier types are different, and the slot lengths are different. The relationship between SCS and slot in NR can refer to Table 1 shown below.

[0047] Table 1: SCS and slot in NR

[0048]

[0049] In a specific application scenario, after calculating the time variable Δt of the starting time of the receiving window and the occurrence time of the primary synchronization signal related peak in the air interface data, Δt can be divided by the slot length corresponding to the first subcarrier spacing, and the integer quotient obtained is taken as the slot number ΔSlot corresponding to the time variable under the first subcarrier spacing. The remainder when the division cannot be completed in integer is taken as Δqts. Further, the slot number and the slot number of the initial slot of the first subcarrier spacing can be added to determine the slot number of the first initial slot of the first subcarrier spacing, and Δqts can be used to adjust the frame header position of the subframe where the first initial slot is located, so as to align the first initial slot with the air interface slot. In determining the first initial slot of the first subcarrier spacing, the following formula can be used:

[0050] Slot 空口boundary = Slot 本地boundary + ΔSlot;​

[0051] Slot 本地boundary =Slot 空口boundary

[0052] In the formula, Slot 空口boundary The slot number for the air interface time slot. 本地boundary ΔSlot is the slot number of the first initial slot, ΔSlot is the number of slots under the first subcarrier interval corresponding to the time variable, and the time variable is the time variable Δt, which is the time variable between the opening time of the receiving window and the time of occurrence of the correlation peak of the main synchronization signal in the air interface data.

[0053] For example, if the locally configured subcarrier spacing includes 15kHz and 30kHz, the first subcarrier spacing is determined to be 15kHz through blind detection, and the time variable Δt, which is the relationship between the receive window opening time and the occurrence time of the primary synchronization signal correlation peak in the air interface data, is calculated to be 5.1ms. Then, based on the time slot length (1ms) corresponding to the first subcarrier spacing, the number of time slots ΔSlot under the first subcarrier spacing corresponding to the time variable Δt is determined to be 5, and Δqts is 0.1ms. Then, the time slot number of the initial time slot of the first subcarrier spacing (e.g., the corresponding time slot number is 0) is summed with the number of time slots ΔSlot to determine the time slot number of the first initial time slot of the first subcarrier spacing, i.e., the time slot boundary position corresponding to time slot number 5 under the first subcarrier spacing. Then, based on Δqts, the frame header position of the subframe containing the first initial time slot can be adjusted, thereby achieving alignment between the first initial time slot and the air interface time slot.

[0054] For example, if the locally configured subcarrier spacing includes 15kHz and 30kHz, the first subcarrier spacing is determined to be 30kHz through blind detection, and the time variable Δt, which is calculated to be 5.1ms, corresponds to the opening time of the receiving window and the occurrence time of the primary synchronization signal correlation peak in the air interface data. Then, based on the slot length (0.5ms) corresponding to the first subcarrier spacing, the number of slots ΔSlot under the first subcarrier spacing is determined to be 10, and Δqts is 0.1ms. The slot number of the initial slot of the first subcarrier spacing (e.g., the corresponding slot number is 0) is then summed with the number of slots ΔSlot to determine the slot number of the first initial slot of the first subcarrier spacing, i.e., the slot boundary position of slot number 10 under the first subcarrier spacing. The frame header position of the subframe containing the first initial slot can then be adjusted based on Δqts, thereby achieving alignment between the first initial slot and the air interface slot.

[0055] Step 204: Update the second initial time slot of the second subcarrier interval among the multiple subcarrier intervals 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 interval is the subcarrier interval other than the first subcarrier interval among the multiple subcarrier intervals.

[0056] In one embodiment of the present disclosure, after the first initial slot is aligned with the air interface slot, the second initial slot aligned with the air interface slot under the second subcarrier spacing can be determined by a conversion relationship with the aligned first initial slot. Specifically, the phase value (0 or 1) of the second initial slot under the second subcarrier spacing can be determined by performing a modulo operation on the second initial slot under the second subcarrier spacing, and the second initial slot under the second subcarrier spacing can be converted based on the phase value and the time slot conversion relationship between the first subcarrier spacing and the second subcarrier spacing. Accordingly, the embodiment steps can include: determining the phase value of the second initial slot under the second subcarrier spacing; and adjusting the time slot start point of the second initial slot under the second subcarrier spacing based on the phase value and the first initial slot, to obtain the second initial slot under the second subcarrier spacing, wherein the time slot start point of the second initial slot is consistent with the time slot start point of the first initial 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 determined to be 30KHz by blind detection. In one embodiment of the present disclosure, the phase value of the first initial slot under the second subcarrier spacing can be determined by performing a modulo operation on the first initial slot under the second subcarrier spacing: Slot boundary_scs＝30k %2=0, or Slot 本地boundary_scs＝30k %2=1. Further, the second initial slot under the second subcarrier spacing can be converted based on the phase value and the time slot conversion relationship between the first subcarrier spacing and the second subcarrier spacing: As one possible application scenario, when Slot boundary_scs＝30k %2=0, the converted second initial slot can be: Slot 本地boundary_scs＝30k =2*Slot 本地boundary_scs＝15k +0; As one possible application scenario, when Slot 本地boundary_scs＝30k %2=1, the converted second initial slot can be: Slot 本地boundary_scs＝30k =2*Slot 本地boundary_scs＝15k +1.

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

[0059] Step 205, updating the first initial slot to the slot counter corresponding to the first subcarrier spacing, and updating the second initial slot to the slot counter corresponding to the second subcarrier spacing.

[0060] In a specific application scenario, the slot counter slot timer can be used to complete the timing tracking and real-time counting of the slot number of the cell in NR. In an embodiment of the present disclosure, after the first initial slot and the second initial slot aligned with the air interface slot are determined, the first initial slot can be updated to the slot counter corresponding to the first subcarrier spacing, and the second initial slot can be updated to the slot counter corresponding to the second subcarrier spacing. Further, the first initial slot is taken as the counting starting point of the slot counter corresponding to the first subcarrier spacing for subsequent real-time counting, and the second initial slot is taken as the counting starting point of the slot counter corresponding to the second subcarrier spacing for subsequent real-time counting, so as to ensure that the two slot counters can keep the counted slots in real time in the aligned state during the slot counting process, facilitating the real-time and rapid switching of the subcarrier spacing.

[0061] Step 206, switching the different subcarrier spacings in the multiple subcarrier spacings in response to the received signaling message.

[0062] In a possible application scenario, before the step of the embodiment is performed, the steps of the embodiment can further include: receiving a signaling message sent by the base station, the signaling message being used to indicate a target subcarrier spacing to be switched, the target subcarrier spacing being any subcarrier spacing in the multiple subcarrier spacings. Correspondingly, in an embodiment of the present disclosure, the currently configured subcarrier spacing in the multiple subcarrier spacings can be switched to the target subcarrier spacing. Since the currently configured subcarrier spacing and the target subcarrier spacing have been aligned with the air interface slot in the previous slot adjustment, when the switching of the subcarrier spacing is performed, the slot conversion of the target subcarrier spacing in combination with the air interface slot is no longer needed, thereby facilitating the rapid switching of the subcarrier spacing.

[0063] In summary, according to the subcarrier spacing switching method provided by the embodiment of the present disclosure, the user equipment UE can first perform time slot synchronization adjustment on the plurality of subcarrier spacings configured locally, so that the initial time slots of the plurality of 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 of the time slots corresponding to the subcarrier spacings. Only the aligned time slots of the subcarrier spacing to be switched are obtained according to the subcarrier type, and seamless switching between different subcarrier spacings can be realized, and the efficiency of the subcarrier spacing switching can be improved.

[0064] The above embodiment of the present application is introduced from the perspective of the user equipment UE. In order to realize the functions in the above method provided by the embodiment of the present application, the user equipment UE can include a hardware structure, a software module, and realize the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Some of the above functions can 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 method provided by the above several embodiments, the present disclosure also provides a subcarrier spacing switching device. Since the subcarrier spacing switching device provided by the embodiment of the present disclosure corresponds to the subcarrier spacing switching method provided by the above several embodiments, the implementation of the subcarrier spacing switching method is also applicable to the subcarrier spacing switching device provided by the present embodiment, which will not be described in detail in the present embodiment.

[0066] Figure 4 A structure diagram of a subcarrier spacing switching device 300 provided by the embodiment of the present disclosure is provided. The subcarrier spacing switching device 300 can be executed by the user equipment UE.

[0067] As Figure 4 The device 300 includes:

[0068] The adjustment module 310 can be used for time slot adjustment on the plurality of subcarrier spacings, so that the initial time slots of the plurality of subcarrier spacings are aligned with the air interface time slots. The alignment is used to make the time slot starting points of the initial time slots and the air interface time slots consistent.

[0069] The switching module 320 can be used for switching between different subcarrier spacings in the plurality of subcarrier spacings in response to the received signaling message.

[0070] In some embodiments of the present disclosure, the adjusting module 310 can be configured to receive air interface data, the air interface data comprising air interface slot information and synchronization signal information; determine a first subcarrier spacing corresponding to the air interface slot information from a plurality of subcarrier spacings; adjust an initial slot of the first subcarrier spacing based on the synchronization signal information to obtain a first initial slot of the first subcarrier spacing, the first initial slot being a slot of the first subcarrier spacing that is aligned with the air interface slot; and update a second initial slot of a second subcarrier spacing from the plurality of subcarrier spacings based on the first initial slot, so that the second initial slot is aligned with the first initial slot, the second subcarrier spacing being a subcarrier spacing from the plurality of subcarrier spacings other than the first subcarrier spacing.

[0071] In some embodiments of the present disclosure, the adjusting module 310 can be configured to determine a time variable of an opening time of a receiving window and a peak occurrence time of a primary synchronization signal in the air interface data, the receiving window being configured to receive the air interface data; determine a number of slots of the first subcarrier spacing corresponding to the time variable; and adjust a slot start point of an initial slot of the first subcarrier spacing based on the number of slots to obtain a first initial slot of the first subcarrier spacing, the slot start point of the first initial slot being consistent with a slot start point of the air interface slot.

[0072] In some embodiments of the present disclosure, the adjusting module 310 can be configured to determine a phase value of the second subcarrier spacing; and adjust a slot start point of an initial slot of the second subcarrier spacing based on the phase value and the first initial slot to obtain a second initial slot of the second subcarrier spacing, the slot start point of the second initial slot being consistent with the slot start point of the first initial slot.

[0073] In some embodiments of the present disclosure, as shown in Figure 5 the apparatus 300 can further include an updating module 330.

[0074] The updating module 330 can be configured to update the first initial slot to a slot counter corresponding to the first subcarrier spacing; and update the second initial slot to a slot counter corresponding to the second subcarrier spacing.

[0075] In some embodiments of the present disclosure, as shown in Figure 5 the apparatus 300 can further include a receiving module 340.

[0076] The receiving module 340 can be configured to receive a signaling message sent by a base station, the signaling message being configured to indicate a target subcarrier spacing to be switched, the target subcarrier spacing being any subcarrier spacing from the plurality of subcarrier spacings.

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

[0078] Please refer to Figure 6 , Figure 6 is a structural schematic diagram of a communication apparatus 1400 provided by an embodiment of the present application. The communication apparatus 1400 can be a network device, can be a user equipment, can be a chip, a chip system, or a processor supporting the network device to implement the method described above, and can be a chip, a chip system, or a processor supporting the user equipment to implement the method described above. The apparatus can be used to implement the method described in the method embodiment described above, and the specific implementation can be referred to the description in the method embodiment described above.

[0079] The communication apparatus 1400 can include one or more processors 1401. The processor 1401 can be a general-purpose processor or a special-purpose processor, etc. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication apparatus (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 data of the computer program.

[0080] Optionally, the communication apparatus 1400 can further include one or more memories 1402, which can store a computer program 1404. The processor 1401 executes the computer program 1404 to enable the communication apparatus 1400 to perform the method described in the method embodiment described above. Optionally, the memory 1402 can also store data. The communication apparatus 1400 and the memory 1402 can be separately arranged or integrated together.

[0081] Optionally, the communication apparatus 1400 can further include a transceiver 1405, an antenna 1406. The transceiver 1405 can be referred to as a transceiving unit, a transceiver, or a transceiving circuit, etc., and is used to realize the transceiving function. The transceiver 1405 can include a receiver and a transmitter. The receiver can be referred to as a receiver or a receiving circuit, etc., and is used to realize the receiving function. The transmitter can be referred to as a transmitter or a transmitting circuit, etc., and is used to realize the transmitting function.

[0082] Optionally, the communication apparatus 1400 can 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 runs the code instructions to enable the communication apparatus 1400 to perform the method described in the method embodiment described above.

[0083] In an implementation, the processor 1401 can include a transceiver for implementing the receiving and transmitting functions. For example, the transceiver can be a transceiver circuit, or an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the receiving and transmitting functions can be separate or integrated together. The transceiver circuit, interface, or interface circuit described above can be used for reading and writing of code / data, or the transceiver circuit, interface, or interface circuit described above can be used for transmission or transfer of signals.

[0084] In an implementation, the processor 1401 can store a computer program 1403, which, when running on the processor 1401, can cause the communication apparatus 1400 to perform the methods described in the above method embodiments. The computer program 1403 can be fixed in the processor 1401, in which case the processor 1401 can be implemented by hardware.

[0085] In an implementation, the communication apparatus 1400 can include a circuit that can implement the functions of sending or receiving or communicating in the above method embodiments. The processor and transceiver described in the present application can be implemented on 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 (NMOS), positive channel metal oxide semiconductor (PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

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

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

[0088] (2) a set of one or more ICs that can optionally also include storage for data, computer programs, and the like;

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

[0090] (4) a module that can be embedded within other devices;

[0091] (5) a receiver, terminal device, intelligent terminal device, cellular telephone, wireless device, handset, mobile unit, vehicular device, network device, cloud device, artificial intelligence device, and the like;

[0092] (6) other, and the like.

[0093] Those skilled in the art will further appreciate that the various illustrative logical blocks and steps (steps) listed in the embodiments of the present application can be implemented by electronic hardware, computer software, or a combination of both. The choice of hardware or software implementation depends on the particular application and overall design constraints imposed on the overall system. Those skilled in the art can use various methods to implement the functions for each particular application, but such implementation should not be interpreted as beyond 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, when executed by a computer, implement the functions of any of the above method embodiments.

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

[0096] The embodiments or examples of the present disclosure are not exhaustive, but only illustrate some of the embodiments or examples, and are not specific limitations on the scope of protection of the present disclosure. Each step in a certain embodiment or example can be implemented as an independent example, and the steps can be combined arbitrarily, for example, a 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 exchanged arbitrarily, in addition, the optional ways or optional examples in a certain embodiment or example can be combined arbitrarily; in addition, the embodiments or examples can be combined arbitrarily, for example, the steps of different embodiments or examples can be combined arbitrarily, a certain embodiment or example can be combined with the optional ways or optional examples of other embodiments or examples.

[0097] In some embodiments or examples, "in response to", "in the case of", "when", "if", "if" and the like in the present disclosure can be replaced with each other.

[0098] In some embodiments or examples, the description mode of "A or B", "A and / or B", "at least one of A and B", "A in one case and B in another case", "in response to one case A and in response to another case B" and the like in the present disclosure can include at least one of the following technical solutions according to the case: A is executed regardless of B, that is, A in some embodiments or examples; B is executed regardless of A, that is, B in some embodiments or examples; A and B are selectively executed, that is, A and B are selected from A and B in some embodiments or examples; A and B are both executed, that is, A and B in some embodiments or examples.

[0099] In some embodiments or examples, "including A", "containing A", "for indicating A", "carrying A" in the present disclosure can 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 example, and the combination of any element, any row, or any column can also be implemented as an independent example.

[0101] Those of ordinary skill in the art can understand that the various numbers such as first, second, etc. involved in the present application are only for the convenience of description, and are not used to limit the scope of the embodiments of the present application, nor to indicate the order.

[0102] At least one of the present application can also be described as one or more, multiple can be two, three, four or more, the present application does not make limitation. 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" and the like, and there is no order or size order between the technical features described by "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., magnetic discs, optical disks, memory, Programmable Logic Devices (PLDs)) used to provide 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 used to provide machine instructions and / or data to a programmable processor.

[0104] The systems and techniques described here can be implemented in a computing system that includes a back end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front end component (e.g., a user computer having a graphical user interface or a Web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back end, middleware, or front end components. The components of the system can 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] The computer system can include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other.

[0106] In some embodiments, the apparatuses and the like can be interpreted as entities, and can also be interpreted as virtual, and the names thereof are not limited to the names recorded in the embodiments. The terms "apparatus", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject" and the like can be replaced with each other.

[0107] In some embodiments, the terms “access network device (AN device),” “radio access network device (RAN device),” “base station (BS),” “radio base station,” “fixed station,” “node,” “access point,” “transmission point (TP),” “reception point (RP),” “transmission / reception point (TRP),” “panel,” “antenna panel,” “antenna array,” “cell,” “macro cell,” “small cell,” “femto cell,” “pico cell,” “sector,” “cell group,” “serving cell,” “carrier,” “component carrier,” “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 so on can be replaced with each other.

[0109] In some embodiments, an access network device, a core network device, or a network device can be replaced with a terminal. For example, for a structure in which communication between an access network device, a core network device, or a network device and a terminal is replaced with communication between a plurality of terminals (for example, also referred to as device-to-device (D2D), vehicle-to-everything (V2X), and so on), embodiments of the present disclosure can also be applied. In this case, a structure in which a terminal has all or part of the functions of an access network device can also be provided. Furthermore, the language of "uplink," "downlink," and so on can also be replaced with language corresponding to communication between terminals (for example, "side"). For example, an uplink channel, a downlink channel, and so on can be replaced with a side channel, and an uplink, a downlink, and so on can be replaced with a side link.

[0110] In some embodiments, a terminal can be replaced with an access network device, a core network device, or a network device. In this case, a structure in which an access network device, a core network device, or a network device has all or part of the functions of a terminal can also be provided.

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

[0112] It should be understood that the various forms of flow shown above can be used to reorder, add, or delete steps. For example, the steps described in the present disclosure can be executed in parallel, sequentially, or in a different order, as long as the desired results of the technical solutions disclosed in the present disclosure can be achieved, and the present disclosure is not limited herein.

[0113] In addition, it should be understood that various embodiments of the present application can be implemented alone or in combination with other embodiments as long as the scheme permits.

[0114] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be realized in electronic hardware, or a combination of computer software and electronic hardware. Whether the functions are performed in hardware or software depends on the specific application and design constraints of the technical solutions. Those of ordinary skill in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0115] Those of ordinary skill in the art can clearly understand that, for the convenience and brevity of the description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0116] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A subcarrier spacing switching method, characterized in that, include: The time slots of multiple subcarrier intervals are adjusted so that the initial time slots of the multiple subcarrier intervals are aligned with the air interface time slots. The alignment is used to make the initial time slots consistent with the time slot start points of the air interface time slots. In response to received signaling messages, the system switches between different subcarrier intervals across multiple subcarrier intervals.

2. The method according to claim 1, characterized in that, The step of adjusting the time slots of multiple subcarrier intervals to align the initial time slots of the multiple subcarrier intervals with the air interface time slots includes: 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 from among the plurality of subcarrier intervals; Based on the synchronization signal information, the initial time slot of the first subcarrier interval is adjusted to obtain the first initial time slot of the first subcarrier interval. The first initial time slot is the time slot aligned with the air interface time slot under the first subcarrier interval. The second initial time slot of the second subcarrier interval among the plurality of subcarrier intervals is updated 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 interval is the subcarrier interval other than the first subcarrier interval among the plurality of subcarrier intervals.

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

4. The method according to claim 3, characterized in that, The step of updating the second initial time slot of the second subcarrier interval among the plurality of subcarrier intervals based on the first initial time slot, so that the second initial time slot is aligned with the first initial time slot, includes: Determine the phase value of the second subcarrier interval; Based on the phase value and the first initial time slot, the time slot starting point of the second subcarrier interval corresponding to the initial time slot is adjusted 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.

5. The method according to claim 4, characterized in that, The method further includes: Update the first initial time slot to the time slot counter corresponding to the first subcarrier interval; Update the second initial time slot to the time slot counter corresponding to the second subcarrier interval.

6. The method according to claim 1, characterized in that, The method further includes: The system receives a signaling message sent by the base station. The signaling message is used to indicate the target subcarrier interval to be switched, and the target subcarrier interval is any one of the plurality of subcarrier intervals.

7. The method according to claim 6, characterized in that, The switching of different subcarrier intervals among multiple subcarrier intervals in response to the received signaling message includes: Switch the currently configured subcarrier interval among the plurality of subcarrier intervals to the target subcarrier interval.

8. A subcarrier spacing switching device, characterized in that, include: An adjustment module is used to adjust the time slots of multiple subcarrier intervals so that the initial time slots of the multiple subcarrier intervals are aligned with the air interface time slots. The alignment is used to make the initial time slots consistent with the time slot start points of the air interface time slots. The switching module is used to switch between different subcarrier intervals in response to received signaling messages.

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

10. A computer storage medium, wherein, The computer storage medium stores computer-executable instructions; when executed by a processor, the computer-executable instructions can implement the method of any one of claims 1-7.

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