WO2022179498A1 - 初始下行bwp的scs的指示方法和设备 - Google Patents

初始下行bwp的scs的指示方法和设备 Download PDF

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Publication number
WO2022179498A1
WO2022179498A1 PCT/CN2022/077266 CN2022077266W WO2022179498A1 WO 2022179498 A1 WO2022179498 A1 WO 2022179498A1 CN 2022077266 W CN2022077266 W CN 2022077266W WO 2022179498 A1 WO2022179498 A1 WO 2022179498A1
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WO
WIPO (PCT)
Prior art keywords
scs
ssb
downlink bwp
initial downlink
indication field
Prior art date
Application number
PCT/CN2022/077266
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English (en)
French (fr)
Inventor
洪琪
李�根
Original Assignee
维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to EP22758862.1A priority Critical patent/EP4301068A1/en
Publication of WO2022179498A1 publication Critical patent/WO2022179498A1/zh
Priority to US18/236,936 priority patent/US20230396398A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0092—Indication of how the channel is divided
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • the present invention claims the priority of the Chinese patent application filed on February 23, 2021 with the application number 202110201097.2 and the invention titled "SCS Indication Method and Device for Initial Downlink BWP", the entire contents of which are by reference Incorporated in the present invention.
  • the present application belongs to the field of communication technologies, and specifically relates to a method and device for indicating a subcarrier spacing (SubCarrier Spacing, SCS) of an initial downlink bandwidth part (BandWidth Part, BWP).
  • SCS subcarrier Spacing
  • BWP BandWidth Part
  • SCS is usually several times of 15kHz (Hz is omitted later), for example, SCS is 60K, 120K, etc. Different service types, frequency bands, and moving speeds have different requirements for SCS.
  • the terminal may not be able to determine the multiple SCSs, thereby affecting the communication efficiency.
  • the embodiments of the present application provide a method and device for indicating the SCS of the initial downlink BWP, which can solve the problem that the terminal cannot determine the SCS of the initial downlink BWP, which affects the communication efficiency.
  • a first aspect provides a method for indicating the SCS of the initial downlink BWP, the method comprising: the terminal determines the SCS of the initial downlink BWP according to at least one of the following: the frequency location where the SSB is located; the synchronization grid number of the SSB; The first frequency band where the operating carrier is located; the SCS of the SSB; the target signaling indication.
  • a method for indicating an SCS of an initial downlink BWP includes: a network-side device and a terminal perform channel or signal transmission on the initial downlink BWP; wherein, the terminal is used according to at least one of the following 1.
  • a device for indicating the SCS of the initial downlink BWP including: a determining module, configured to determine the SCS of the initial downlink BWP according to at least one of the following: the frequency position where the SSB is located; the synchronization grid number of the SSB; the SSB The first frequency band where the operating carrier is located; the SCS of the SSB; the target signaling indication.
  • a device for indicating an SCS of an initial downlink BWP including: a transmission module configured to transmit a channel or a signal with a terminal on the initial downlink BWP; wherein the terminal is configured to perform channel or signal transmission according to at least one of the following Determine the SCS of the initial downlink BWP: the frequency position where the SSB is located; the synchronization grid number of the SSB; the first frequency band where the operating carrier of the SSB is located; the SCS of the SSB;
  • a terminal in a fifth aspect, includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, when the program or instruction is executed by the processor A method as described in the first aspect is implemented.
  • a network side device in a sixth aspect, includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the The processor implements the method as described in the second aspect when executed.
  • a readable storage medium on which a program or an instruction is stored, and when the program or instruction is executed by a processor, the method described in the first aspect or the second the method described in the aspect.
  • a computer program product comprising a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the When executed by the processor, the method described in the first aspect or the method described in the second aspect is realized.
  • a chip in a ninth aspect, includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the method according to the first aspect , or implement the method described in the second aspect.
  • the terminal may determine the SCS of the initial downlink BWP according to at least one of the following: the frequency location where the SSB is located; the synchronization grid number of the SSB; the first frequency band where the operating carrier of the SSB is located; the SCS of the SSB; order instruction.
  • the embodiment of the present application solves the problem that the terminal cannot determine the SCS of the downlink BWP, which affects the communication efficiency, and facilitates the improvement of the communication efficiency.
  • FIG. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for indicating an SCS of an initial downlink BWP according to an embodiment of the present application
  • FIG. 3 is a schematic flowchart of a method for indicating an SCS of an initial downlink BWP according to an embodiment of the present application
  • FIG. 4 is a schematic structural diagram of an apparatus for indicating an SCS of an initial downlink BWP according to an embodiment of the present application
  • FIG. 5 is a schematic structural diagram of an apparatus for indicating an SCS of an initial downlink BWP according to an embodiment of the present application
  • FIG. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a terminal according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a network side device according to an embodiment of the present application.
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first”, “second” distinguishes Usually it is a class, and the number of objects is not limited.
  • the first object may be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
  • NR New Radio
  • the following description describes a New Radio (NR) system for example purposes, and uses NR terminology in most of the following description, these techniques are also applicable to applications other than NR system applications, such as 6th Generation (6th Generation ) , 6G) communication system.
  • 6th Generation 6th Generation
  • 6G 6th Generation
  • FIG. 1 shows a schematic diagram of a wireless communication system to which an embodiment of the present application can be applied.
  • the wireless communication system includes a terminal 11 and a network-side device 12 .
  • the terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), PDA, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet Device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device ( VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: bracelets, earphones, glasses, etc.
  • the network side device 12 may be a base station or a core network, wherein the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Next Generation Node B (gNB), Home Node B, Home Evolved Node B, Wireless Local area network (Wireless Local Area Network, WLAN) access point, WiFi node, Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to For specific technical terms, it should be noted that in the embodiments of this application, only the base station in the NR system is used as an example, but the specific type of the base
  • an embodiment of the present application provides a method 200 for indicating an SCS of an initial downlink BWP.
  • the method can be executed by a terminal.
  • the method can be executed by software or hardware installed in the terminal.
  • the method includes the following: step.
  • the terminal determines the SCS of the initial downlink BWP according to at least one of the following: the frequency location where the synchronization signal and the physical broadcast block (Synchronization Signal and PBCH Block, SSB) are located; the synchronization grid number of the SSB; the first location where the operating carrier of the SSB is located Frequency band; SCS of SSB; target signaling indication.
  • the frequency location where the synchronization signal and the physical broadcast block (Synchronization Signal and PBCH Block, SSB) are located the synchronization grid number of the SSB; the first location where the operating carrier of the SSB is located Frequency band; SCS of SSB; target signaling indication.
  • the frequency location of the SSB is frequency 1
  • the SCS of the initial downlink BWP is 240KHz (the frequency of the SSB is omitted later);
  • the frequency of the SSB is The location is frequency 2
  • the SCS of the initial downstream BWP is 480K; and so on.
  • the first frequency band includes one of the following: 1) a specific frequency range, such as FR3 or FR2x, where the frequency of FR3 is higher than 52.6 GHz; 2) a specific frequency band within a specific frequency range, such as FR2, FR2x or specific frequency bands in FR3.
  • a specific frequency range such as FR3 or FR2x, where the frequency of FR3 is higher than 52.6 GHz
  • a specific frequency band within a specific frequency range such as FR2, FR2x or specific frequency bands in FR3.
  • the SCS of the SSB there is an association relationship between the SCS of the SSB and the SCS of the initial downlink BWP.
  • the SCS of the initial downlink BWP can be obtained according to the above association relationship.
  • the SCS of the SSB is equal to the SCS of the initial downlink BWP, and the terminal directly uses the SCS of the SSB as the SCS of the initial downlink BWP.
  • the SCS of the SSB has a multiple relationship with the SCS of the initial downlink BWP, and the terminal derives the SCS of the initial downlink BWP after obtaining the SCS of the SSB according to the multiple relationship.
  • the terminal may receive target signaling from the network side device, where the target signaling is used to indicate the SCS of the initial downlink BWP.
  • the target signaling may be system signaling or radio resource control (Radio Resource Control, RRC) signaling.
  • RRC Radio Resource Control
  • the terminal determines the SCS of the initial downlink BWP based on one of the five types of information mentioned in S202. In fact, the terminal can also determine the initial downlink BWP according to at least two of the above five types of information. SCS. For example, the terminal determines the SCS of the initial downlink BWP according to the SCS of the SSB and the target signaling indication.
  • the SCS of the SSB is 120K
  • the SCS of the SSB is used as the SCS of the initial downlink BWP, that is, the SCS of the initial downlink BWP is also 120K
  • the SCS of the SSB is 480K or 960K
  • the target signaling Indicates the SCS that determines the initial downlink BWP.
  • the terminal performs channel or signal transmission on the initial downlink BWP according to the SCS of the initial downlink BWP.
  • the channel or signal may be related to the initial access process, for example, including a random access preamble (preamble), a physical downlink control channel (Physical Downlink Control Channel, PDCCH), a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH), etc.
  • the terminal can determine the SCS of the initial downlink BWP according to at least one of the following: the frequency location where the SSB is located; the synchronization grid number of the SSB; the first location where the operating carrier of the SSB is located Frequency band; SCS of SSB; target signaling indication.
  • the embodiment of the present application solves the problem that the terminal cannot determine the SCS of the downlink BWP, which affects the communication efficiency, and facilitates the improvement of the communication efficiency.
  • the SCS for determining the initial downlink BWP according to the at least one mentioned in Embodiment 200 may include one of the following three.
  • the SCS of the SSB is used as the SCS of the initial downlink BWP.
  • the SCS of the SSB is equal to the SCS of the initial downlink BWP.
  • the SCS of the initial downlink BWP may be determined according to the SCS of the SSB and the indication field in the target signaling, and the indication field is used to indicate the SCS of the initial downlink BWP.
  • the SCS of the initial downlink BWP may be determined according to an indication field in the target signaling, and the indication field is used to indicate the SCS of the initial downlink BWP.
  • the SCS for determining the initial downlink BWP according to the SCS of the SSB and the target signaling indication mentioned in the above 2) includes at least one of the following two.
  • the SCS of the SSB is used as the SCS of the initial downlink BWP.
  • the first target SCS and the second target SCS are not equal, for example, the first target SCS may be 120K, and the second target SCS may be 480K or 960K.
  • the first target SCS may be 480K or 960K, and the second target SCS may be 120K.
  • the SCS of the SSB has multiple options, such as 120K, 480K, and 960K; the SCS of the initial downlink BWP also has multiple possibilities, such as 120K, 480K, and 960K.
  • the SCS of the SSB is 120K
  • the SCS of the initial downlink BWP is also 120K by default, that is, the SCS of the initial downlink BWP is bound to the SCS of the SSB; if the SCS of the SSB is 480K and/or 960K, the SCS of the initial downlink BWP is bound to the SCS of the SSB.
  • the SCS of the SSB has nothing to do with it, and the target signaling is used to indicate whether the SCS of the initial downlink BWP is 480K or 960K.
  • the target signaling may be the subCarrierSpacingCommon indication field in the system signaling.
  • Taking the SCS of the SSB as the SCS of the initial downlink BWP mentioned in 1) above includes: in the case that the SCS of the SSB is the third target SCS, taking the SCS of the SSB as the SCS of the initial downlink BWP.
  • Determining the SCS of the initial downlink BWP according to the target signaling indication mentioned in the above 3) includes: in the case that the SCS of the SSB is the fourth target SCS, determining the initial downlink BWP according to the target signaling indication SCS.
  • the above two embodiments may be implemented independently, and thus, the third target SCS and the fourth target SCS may be equal or unequal.
  • the above two embodiments may be implemented simultaneously, so that the third target SCS and the fourth target SCS may be different, for example, the third target SCS may be 120K, and the fourth target SCS may be 480K or 960K.
  • the third target SCS may be 480K or 960K, and the fourth target SCS may be 120K.
  • the target signaling mentioned in the above 2) or 3) includes an indication field; when the SCS of the SSB is the fifth target SCS, the indication field is used to indicate target information; and/or in When the SCS of the SSB is the sixth target SCS, the indication field is used to indicate the SCS of the initial downlink BWP.
  • the target information may be different from the SCS of the initial downlink BWP, or in other words, when the SCS of the SSB is the fifth target SCS, the indication field is not used to indicate the SCS of the initial downlink BWP.
  • the fifth target SCS and the sixth target SCS are not equal, for example, the fifth target SCS may be 120K, and the sixth target SCS may be 480K or 960K.
  • the fifth target SCS may be 480K or 960K
  • the sixth target SCS may be 120K.
  • the indication field subCarrierSpacingCommon in the system information does not need to indicate the SCS of the initial downlink BWP.
  • the SCS of the initial downlink BWP can be equal to the SCS of the SSB, and the indication field subCarrierSpacingCommon is not used to indicate the SCS of the initial downlink BWP;
  • the indication field subCarrierSpacingCommon in the system information is used to indicate the SCS of the initial downlink BWP.
  • the SCS of the initial downlink BWP can be used with the SSB. SCS doesn't matter. Therefore, in the above two cases, the subCarrierSpacingCommon indicates the role of the field is different.
  • the target signaling mentioned in the above 2) or 3) includes a target indication field, and the target indication field is used to indicate the SCS of the initial downlink BWP; wherein, the target indication field is a subCarrierSpacingCommon indication field; Or the target indication field includes a first indication field and a second indication field, and the first indication field is a subCarrierSpacingCommon indication field.
  • the subCarrierSpacingCommon indication field in the related art is 1 bit, it cannot directly indicate multiple (that is, more than two) SCSs of the initial downlink BWP. Therefore, the subCarrierSpacingCommon indication field can be extended, for example, to 2 bits, Or use an additional second indication field to indicate. Wherein, the second indication field may be used to independently indicate the SCS of the initial downlink BWP, or the second indication field may indicate the SCS of the initial downlink BWP through joint coding with the subCarrierSpacingCommon indication field.
  • the second indication field mentioned in the foregoing embodiment may include at least one of the following.
  • PDSCH-DMRS Physical downlink shared channel demodulation reference signal
  • the second indication field may be used to independently indicate the SCS of the initial downlink BWP, or the second indication field may indicate the initial downlink by means of joint coding with the subCarrierSpacingCommon field. BWP's SCS.
  • the at least two may indicate the SCS of the initial downlink BWP by means of joint coding.
  • the second indication field includes the PDSCH-DMRS position indication field; wherein, the PDSCH-DMRS position indication field is associated with the SCS of the SSB; or the PDSCH-DMRS position indication field It is used to indicate the fixed PDSCH-DMRS position and has no association with the SCS of the SSB.
  • the PDSCH-DMRS position indication field is associated with the SCS of the SSB. Specifically, for example, when the SCS of the SSB is the first value, the PDSCH-DMRS position is the third symbol in the time slot; the SCS of the SSB is When the second value is used, the PDSCH-DMRS position is the fourth symbol in the time slot. Therefore, the PDSCH-DMRS position indication field does not need to indicate the PDSCH-DMRS position, and the PDSCH-DMRS position indication field can be used to indicate the initial downlink BWP. SCS.
  • the PDSCH-DMRS position indication field is used to indicate a fixed PDSCH-DMRS position. Therefore, the PDSCH-DMRS position indication field does not need to further indicate the position of the PDSCH-DMRS, and the PDSCH-DMRS position indication field can be used to indicate the position of the PDSCH-DMRS. SCS of the initial downlink BWP.
  • the second indication field includes the physical downlink control channel configuration system information block indication field, and the physical downlink control channel configuration system information block indication field indicates in the configuration table corresponding to the control resource set (CORESET)
  • the number of valid grants is less than the first threshold, and/or the number of valid grants in the configuration table corresponding to the search space (Search space) indicated by the physical downlink control channel configuration system information block indication field is less than the second threshold.
  • the terminal since a part of the indication bits in the indication field of the physical downlink control channel configuration system information block are used to indicate the SCS of the initial downlink BWP, the terminal assumes that the number of valid licenses in the configuration table corresponding to CORESET #0 is reduced, that is, less than the first threshold, and/or, the terminal assumes that the number of valid licenses in the configuration table corresponding to Search space #0 decreases, that is, less than the second threshold.
  • the second indication field includes the ssb-SubcarrierOffset indication field, where the ssb-SubcarrierOffset indication field includes an indication bit for indicating the SCS of the initial downlink BWP.
  • the extra bits can be used to indicate the SCS of the initial downlink BWP.
  • the ssb-SubcarrierOffset indication field has 4 bits. In some cases, such as some fixed SSB subcarrier offsets, 3 bits are enough to indicate the SSB subcarrier spacing offset, so the extra 1 bit can be used for Indicates the SCS of the initial downlink BWP.
  • This embodiment can be applied to the B52.6GHz system.
  • This embodiment assumes that the B52.6GHz frequency band is divided into a new frequency band, such as the FR2x frequency band or FR3.
  • 1 bit in the subCarrierSpacingCommon indication field can be used to indicate the SCS of the initial downlink BWP .
  • the SCS of the initial downlink BWP can be determined in the following three ways.
  • Mode 1 The SCS of the initial downlink BWP is consistent with the SCS of the SSB.
  • Mode 2 The SCS of some initial downlink BWPs is consistent with the SCS of the SSB.
  • Mode 3 The SCS of the initial downlink BWP is not related to the SCS of the SSB, and the SCS of the initial downlink BWP can be indicated by target signaling.
  • the terminal may default that the SCS of the initial downlink BWP is the same as the SCS of the SSB received by the terminal. Therefore, this mode does not need to use the subCarrierSpacingCommon indication field.
  • the SCS of the SSB has multiple possibilities, such as 120K, 480K and/or 960K; the SCS of the initial downlink BWP also has multiple possibilities, such as 120K, 480K and/or 960K.
  • the terminal When the SCS of the SSB is 120K, the terminal directly defaults that the SCS of the initial downlink BWP is also 120K. If the SCS of the SSB is 480K and/or 960K, the subCarrierSpacingCommon indication field is used to indicate whether the SCS of the initial downlink BWP is 480K or 960K.
  • the SCS of the SSB has multiple possibilities, such as 120K, 240K, 480K, and 960K; and the SCS of the initial downlink BWP also has multiple possibilities, such as 120K, 240K, 480K, and 960K, the following two possibilities exist.
  • Possibility 1 When the SCS of the SSB is 120K, the terminal directly defaults the SCS of the initial downlink BWP to 120K. When the SCS of the SSB is 240K, the terminal directly defaults to the SCS of the initial downlink BWP to be 240K. If the SCS of the SSB is 480K or 960K, use the subCarrierSpacingCommon indication field to indicate whether the SCS of the initial downlink BWP is 480K or 960K.
  • the terminal directly defaults the SCS of the initial downlink BWP to 120K; if the SCS of the SSB is 240K, 480K or 960K, the initial downlink BWP is indicated by the indication field in the target signaling The SCS is 240K, 480K or 960K.
  • the subCarrierSpacingCommon indication field may be extended, for example, to 2 bits, or an additional second indication field may be used to indicate, for details, please refer to the introduction of the foregoing embodiment.
  • the SCS of the initial downlink BWP is not related to the SCS of the SSB, and the SCS of the initial downlink BWP can be indicated through the subCarrierSpacingCommon indication field. If there are more than two candidate combinations of SCSs in the initial downlink BWP, more bits are required because the subCarrierSpacingCommon indication field has only one bit, which is not enough to indicate three SCSs.
  • the subCarrierSpacingCommon indication field may be extended, for example, to 2 bits, or an additional second indication field may be used to indicate, for details, please refer to the introduction of the foregoing embodiment.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • This embodiment can be applied to the B52.6GHz system.
  • This embodiment assumes that the B52.6GHz frequency band is directly divided into the FR2 frequency band.
  • 1 bit in the subCarrierSpacingCommon indication field has been used for (60K, 120K) indication, so it needs to pass the The following way indicates SCS other than 60K and 120K.
  • Mode 1 The SCS of the initial downlink BWP is consistent with the SCS of the SSB.
  • Mode 2 The SCS of some initial downlink BWPs is consistent with the SCS of the SSB.
  • Mode 3 The SCS of the initial downlink BWP is not related to the SCS of the SSB, and the SCS of the initial downlink BWP can be indicated through the target signaling.
  • the terminal may default that the SCS of the initial downlink BWP is completely consistent with the SC of the SSB received by the terminal, and no additional bits are used to indicate this.
  • the SCS of the initial downlink BWP For mode 2, if the SCS of the SSB has multiple possibilities, 120K, 480K and/or 960K; the SCS of the initial downlink BWP also has multiple possibilities, 120K, 480K and/or 960K. Then when the SCS of the SSB is 120K, the SCS of the initial downlink BWP is also 120K by default. If the SCS of the SSB is 480K and/or 960K, the extra bits are used to indicate whether the SCS of the initial downlink BWP is 480K or 960K. .
  • the subCarrierSpacingCommon indication field may be extended, for example, to 2 bits, or an additional second indication field may be used to indicate, for details, please refer to the introduction of the foregoing embodiment.
  • the SCS of the initial downlink BWP is not related to the SCS of the SSB, and an additional number of bits is required to indicate the SCS of the initial downlink BWP.
  • the subCarrierSpacingCommon indication field may be extended, for example, to 2 bits, or an additional second indication field may be used to indicate, for details, please refer to the introduction of the foregoing embodiment.
  • the method for indicating the SCS of the initial downlink BWP according to the embodiment of the present application is described in detail above with reference to FIG. 2 .
  • a method for indicating the SCS of the initial downlink BWP according to another embodiment of the present application will be described in detail below with reference to FIG. 3 . It can be understood that the interaction between the network side device and the terminal described from the network side device is the same as the description on the terminal side in the method shown in FIG. 2 , and related descriptions are appropriately omitted to avoid repetition.
  • FIG. 3 is a schematic flowchart of an implementation of a method for indicating an SCS of an initial downlink BWP according to an embodiment of the present application, which can be applied to a network side device. As shown in FIG. 3 , the method 300 includes the following steps.
  • the network side device and the terminal perform channel or signal transmission on the initial downlink BWP; wherein, the terminal is configured to determine the SCS of the initial downlink BWP according to at least one of the following: the frequency location where the SSB is located; the synchronization grid number of the SSB ; the first frequency band where the operating carrier of the SSB is located; the SCS of the SSB; the target signaling indication.
  • the terminal may determine the SCS of the initial downlink BWP according to at least one of the following: the frequency location where the SSB is located; the synchronization grid number of the SSB; the first frequency band where the operating carrier of the SSB is located; the SCS of the SSB; order instruction.
  • the network side device and the terminal can transmit channels or signals on the initial downlink BWP, which improves communication efficiency.
  • the execution subject may be the indicating device of the SCS of the initial downlink BWP, or, in the indicating device of the SCS of the initial downlink BWP, the method for executing the initial The control module of the indication method of the SCS of the downlink BWP.
  • the SCS indicating device of the initial downlink BWP provided by the embodiment of the present application is described by taking the indicating device of the SCS of the initial downlink BWP as an example to perform the indicating method of the SCS of the initial downlink BWP.
  • FIG. 4 is a schematic structural diagram of an apparatus for indicating an SCS of an initial downlink BWP according to an embodiment of the present application, and the apparatus 400 may correspond to a terminal in other embodiments.
  • the apparatus 400 includes: a determining module 402, which can be configured to determine the SCS of the initial downlink BWP according to at least one of the following: the frequency location where the SSB is located; the synchronization grid number of the SSB; the first location where the operating carrier of the SSB is located Frequency band; SCS of SSB; target signaling indication.
  • a determining module 402 can be configured to determine the SCS of the initial downlink BWP according to at least one of the following: the frequency location where the SSB is located; the synchronization grid number of the SSB; the first location where the operating carrier of the SSB is located Frequency band; SCS of SSB; target signaling indication.
  • the SCS of the initial downlink BWP can be determined according to at least one of the following: the frequency location where the SSB is located; the synchronization grid number of the SSB; the first frequency band where the operating carrier of the SSB is located; the SCS of the SSB; target signaling instruct.
  • the embodiment of the present application solves the problem that the SCS of the starting downlink BWP cannot be determined, which affects the communication efficiency, and is convenient to improve the communication efficiency.
  • the determining module 402 is configured to one of the following: take the SCS of the SSB as the SCS of the initial downlink BWP; determine the initial downlink BWP according to the SCS of the SSB and the target signaling indication The SCS of the initial downlink BWP is determined according to the target signaling indication.
  • the determining module 402 is configured to at least one of the following: when the SCS of the SSB is the first target SCS, the SCS of the SSB is used as the SCS of the initial downlink BWP; When the SCS is the second target SCS, the SCS of the initial downlink BWP is determined according to the target signaling indication.
  • the using the SCS of the SSB as the SCS of the initial downlink BWP includes: in the case that the SCS of the SSB is the third target SCS, using the SCS of the SSB as the SCS of the initial downlink BWP , and/or the determining the SCS of the initial downlink BWP according to the target signaling indication includes: in the case that the SCS of the SSB is the fourth target SCS, determining the initial downlink BWP according to the target signaling indication SCS.
  • the target signaling includes an indication field; when the SCS of the SSB is the fifth target SCS, the indication field is used to indicate target information, and/or, the SCS of the SSB is In the case of the sixth target SCS, the indication field is used to indicate the SCS of the initial downlink BWP.
  • the target signaling includes a target indication field, and the target indication field is used to indicate the SCS of the initial downlink BWP; wherein, the target indication field is a subCarrierSpacingCommon indication field; or the The target indication field includes a first indication field and a second indication field, and the first indication field is a subCarrierSpacingCommon indication field.
  • the second indication field includes at least one of the following: a PDSCH-DMRS location indication field in the SSB; a physical downlink control channel configuration system information block indication field in the SSB; ssb-SubcarrierOffset in the SSB Indication field; reserved field in SSB.
  • the second indication field includes the PDSCH-DMRS position indication field, and the PDSCH-DMRS position indication field is associated with the SCS of the SSB; or the PDSCH-DMRS position
  • the indication field is used to indicate the fixed PDSCH-DMRS position and has no association with the SCS of the SSB.
  • the second indication field includes the physical downlink control channel configuration system information block indication field, and the physical downlink control channel configuration system information block indication field indicates that the CORESET corresponding to the configuration table is valid.
  • the number of grants is less than the first threshold, and/or the number of valid grants in the configuration table corresponding to the search space indicated by the physical downlink control channel configuration system information block indication field is less than the second threshold.
  • the second indication field includes the ssb-SubcarrierOffset indication field, where the ssb-SubcarrierOffset indication field includes an indication bit for indicating the SCS of the initial downlink BWP.
  • the first frequency band includes one of the following: a specific frequency range; a specific frequency band within a specific frequency range.
  • the apparatus 400 further includes: a transmission module (not shown) configured to transmit channels or signals on the initial downlink BWP according to the SCS of the initial downlink BWP.
  • a transmission module (not shown) configured to transmit channels or signals on the initial downlink BWP according to the SCS of the initial downlink BWP.
  • the device for indicating the SCS of the initial downlink BWP may be a device, or may be a component, an integrated circuit, or a chip in a terminal.
  • the device may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machine, or self-service machine, etc., which are not specifically limited in the embodiments of the present application.
  • the device for indicating the SCS of the initial downlink BWP may be a device having an operating system.
  • the operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
  • the device for indicating the SCS of the initial downlink BWP provided in the embodiment of the present application can implement each process implemented by the method embodiments in FIG. 2 to FIG. 3 , and achieve the same technical effect, which is not repeated here to avoid repetition.
  • FIG. 5 is a schematic structural diagram of an apparatus for indicating an SCS of an initial downlink BWP according to an embodiment of the present application, and the apparatus may correspond to a network side device in other embodiments.
  • the apparatus 500 includes: a transmission module 502, which can be used to transmit a channel or signal with a terminal on an initial downlink BWP; wherein the terminal is used to determine the initial downlink BWP according to at least one of the following: SCS: the frequency location where the SSB is located; the synchronization grid number of the SSB; the first frequency band where the operating carrier of the SSB is located; the SCS of the SSB; the target signaling indication.
  • SCS the frequency location where the SSB is located
  • the synchronization grid number of the SSB the first frequency band where the operating carrier of the SSB is located
  • the SCS of the SSB the target signaling indication.
  • the terminal may determine the SCS of the initial downlink BWP according to at least one of the following: the frequency location where the SSB is located; the synchronization grid number of the SSB; the first frequency band where the operating carrier of the SSB is located; the SCS of the SSB; order instruction.
  • the apparatus 500 and the terminal can transmit channels or signals on the initial downlink BWP, which improves communication efficiency.
  • an embodiment of the present application further provides a communication device 600, including a processor 601, a memory 602, a program or instruction stored in the memory 602 and executable on the processor 601,
  • a communication device 600 including a processor 601, a memory 602, a program or instruction stored in the memory 602 and executable on the processor 601
  • the communication device 600 is a terminal
  • the program or instruction is executed by the processor 601
  • each process of the above-mentioned embodiment of the method for indicating the SCS of the initial downlink BWP can be realized, and the same technical effect can be achieved.
  • the communication device 600 is a network-side device, when the program or instruction is executed by the processor 601, each process of the above-mentioned embodiment of the SCS indication method of the initial downlink BWP can be realized, and the same technical effect can be achieved. Repeat.
  • FIG. 7 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
  • the terminal 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, a processor 710 and other components .
  • the terminal 700 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 710 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions.
  • a power source such as a battery
  • the terminal structure shown in FIG. 7 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 704 may include a graphics processor (Graphics Processing Unit, GPU) 7041 and a microphone 7042. Such as camera) to obtain still pictures or video image data for processing.
  • the display unit 706 may include a display panel 7061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 707 includes a touch panel 7071 and other input devices 7072 .
  • the touch panel 7071 is also called a touch screen.
  • the touch panel 7071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 7072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which are not described herein again.
  • the radio frequency unit 701 receives the downlink data from the network side device, and then processes it to the processor 710; in addition, sends the uplink data to the network side device.
  • the radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • Memory 709 may be used to store software programs or instructions as well as various data.
  • the memory 709 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 709 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • PROM erasable programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • the processor 710 may include one or more processing units; optionally, the processor 710 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 710.
  • the processor 710 is configured to determine the SCS of the initial downlink BWP according to at least one of the following: the frequency location where the SSB is located; the synchronization grid number of the SSB; the first frequency band where the operating carrier of the SSB is located; the SCS of the SSB; target signaling instruct.
  • the terminal 700 may determine the SCS of the initial downlink BWP according to at least one of the following: the frequency location where the SSB is located; the synchronization grid number of the SSB; the first frequency band where the operating carrier of the SSB is located; the SCS of the SSB; the target signaling indication.
  • the embodiment of the present application solves the problem that the terminal cannot determine the SCS of the downlink BWP, which affects the communication efficiency, and facilitates the improvement of the communication efficiency.
  • the terminal 700 provided in this embodiment of the present application can also implement each process of the above-mentioned embodiment of the SCS indication method of the initial downlink BWP, and can achieve the same technical effect, which is not repeated here in order to avoid repetition.
  • the network side device 800 includes: an antenna 81 , a radio frequency device 82 , and a baseband device 83 .
  • the antenna 81 is connected to the radio frequency device 82 .
  • the radio frequency device 82 receives information through the antenna 81, and sends the received information to the baseband device 83 for processing.
  • the baseband device 83 processes the information to be sent and sends it to the radio frequency device 82
  • the radio frequency device 82 processes the received information and sends it out through the antenna 81 .
  • the above-mentioned frequency band processing apparatus may be located in the baseband apparatus 83 , and the method performed by the network side device in the above embodiments may be implemented in the baseband apparatus 83 .
  • the baseband apparatus 83 includes a processor 84 and a memory 85 .
  • the baseband device 83 may include, for example, at least one baseband board on which a plurality of chips are arranged. As shown in FIG. 8 , one of the chips is, for example, the processor 84 and is connected to the memory 85 to call the program in the memory 85 to execute The network-side device shown in the above method embodiments operates.
  • the baseband device 83 may further include a network interface 86 for exchanging information with the radio frequency device 82, and the interface is, for example, a common public radio interface (CPRI for short).
  • CPRI common public radio interface
  • the network-side device in the embodiment of the present invention further includes: instructions or programs stored on the memory 85 and executable on the processor 84, and the processor 84 invokes the instructions or programs in the memory 85 to execute the modules shown in FIG. 5 .
  • An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, each process of the above-mentioned SCS indication method embodiment of the initial downlink BWP is implemented , and can achieve the same technical effect, in order to avoid repetition, it is not repeated here.
  • the processor may be the processor in the terminal described in the foregoing embodiment.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
  • An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or an instruction to implement the SCS of the initial downlink BWP.
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is used to run a program or an instruction to implement the SCS of the initial downlink BWP.
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.
  • the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation.
  • the technical solution of the present application can be embodied in the form of a software product in essence or in a part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network side device, etc.) execute the methods described in the various embodiments of this application.
  • a storage medium such as ROM/RAM, magnetic disk, CD-ROM

Abstract

本申请实施例公开了一种初始下行BWP的SCS的指示方法和设备，该方法可以包括：终端根据如下至少之一确定初始下行BWP的SCS：SSB所在的频率位置；SSB的同步栅格号；SSB的运行载波所在的第一频段；SSB的SCS；目标信令指示。

Description

初始下行BWP的SCS的指示方法和设备
交叉引用
本发明要求在2021年2月23日提交中国专利局、申请号为202110201097.2、发明名称为“初始下行BWP的SCS的指示方法和设备”的中国专利申请的优先权，该申请的全部内容通过引用结合在本发明中。
技术领域
本申请属于通信技术领域，具体涉及一种初始下行带宽部分(BandWidth Part，BWP)的子载波间隔(SubCarrier Spacing，SCS)的指示方法和设备。
背景技术
SCS通常是15kHz(后续省略Hz)的若干倍，例如，SCS为60K，120K等。不同的业务类型、频段、移动速度对SCS的要求不同，在B52.6GHz(高于52.6GHz)系统中，初始下行BWP可能会引入大的SCS，比如SCS＝480K，960K等，这会导致SCS的数量的进一步增多。按照相关技术中的SCS的指示方法，终端可能无法确定出这多个SCS，进而影响通信效率。
发明内容
本申请实施例提供一种初始下行BWP的SCS的指示方法和设备，能够解决终端无法确定初始下行BWP的SCS，影响通信效率的问题。
第一方面，提供了一种初始下行BWP的SCS的指示方法，所述方法包括：终端根据如下至少之一确定初始下行BWP的SCS：SSB所在的频率位置；SSB的同步栅格号；SSB的运行载波所在的第一频段；SSB的SCS；目 标信令指示。
第二方面，提供了一种初始下行BWP的SCS的指示方法，所述方法包括：网络侧设备与终端在初始下行BWP上进行信道或信号的传输；其中，所述终端用于根据如下至少之一确定所述初始下行BWP的SCS：SSB所在的频率位置；SSB的同步栅格号；SSB的运行载波所在的第一频段；SSB的SCS；目标信令指示。
第三方面，提供了一种初始下行BWP的SCS的指示装置，包括：确定模块，用于根据如下至少之一确定初始下行BWP的SCS：SSB所在的频率位置；SSB的同步栅格号；SSB的运行载波所在的第一频段；SSB的SCS；目标信令指示。
第四方面，提供了一种初始下行BWP的SCS的指示装置，包括：传输模块，用于与终端在初始下行BWP上进行信道或信号的传输；其中，所述终端用于根据如下至少之一确定所述初始下行BWP的SCS：SSB所在的频率位置；SSB的同步栅格号；SSB的运行载波所在的第一频段；SSB的SCS；目标信令指示。
第五方面，提供了一种终端，该终端包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第一方面所述的方法。
第六方面，提供了一种网络侧设备，该网络侧设备包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第二方面所述的方法。
第七方面，提供了一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如第一方面所述的方法，或者实现如第二方面所述的方法。
第八方面，提供了一种计算机程序产品，该计算机程序产品包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时，实现如第一方面所述的方法，或实现如第 二方面所述的方法。
第九方面，提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如第一方面所述的方法，或实现如第二方面所述的方法。
在本申请实施例中，终端可以根据如下至少之一确定初始下行BWP的SCS：SSB所在的频率位置；SSB的同步栅格号；SSB的运行载波所在的第一频段；SSB的SCS；目标信令指示。本申请实施例解决了终端无法确定始下行BWP的SCS，影响通信效率的问题，便于提高通信效率。
附图说明
图1是根据本申请实施例的无线通信系统的示意图；
图2是根据本申请实施例的初始下行BWP的SCS的指示方法的示意性流程图；
图3是根据本申请实施例的初始下行BWP的SCS的指示方法的示意性流程图；
图4是根据本申请实施例的初始下行BWP的SCS的指示装置的结构示意图；
图5是根据本申请实施例的初始下行BWP的SCS的指示装置的结构示意图；
图6是根据本申请实施例的通信设备的结构示意图；
图7是根据本申请实施例的终端的结构示意图；
图8是根据本申请实施例的网络侧设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员所获得的所有其他实 施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”所区别的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是，本申请实施例所描述的技术不限于长期演进型(Long Term Evolution，LTE)/LTE的演进(LTE-Advanced，LTE-A)系统，还可用于其他无线通信系统，诸如码分多址(Code Division Multiple Access，CDMA)、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access，OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access，SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用，所描述的技术既可用于以上提及的系统和无线电技术，也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio，NR)系统，并且在以下大部分描述中使用NR术语，这些技术也可应用于NR系统应用以外的应用，如第6代(6 th Generation，6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的示意图。无线通信系统包括终端11和网络侧设备12。其中，终端11也可以称作终端设备或者用户终端(User Equipment，UE)，终端11可以是手机、平板电脑(Tablet Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant，PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer，UMPC)、移动上网装置(Mobile Internet Device，MID)、可穿戴式设备(Wearable Device)或车载设备(VUE)、行 人终端(PUE)等终端侧设备，可穿戴式设备包括：手环、耳机、眼镜等。需要说明的是，在本申请实施例并不限定终端11的具体类型。网络侧设备12可以是基站或核心网，其中，基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station，BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set，BSS)、扩展服务集(Extended Service Set，ESS)、B节点、演进型B节点(eNB)、下一代节点B(gNB)、家用B节点、家用演进型B节点、无线局域网(Wireless Local Area Network，WLAN)接入点、WiFi节点、发送接收点(Transmitting Receiving Point，TRP)或所述领域中其他某个合适的术语，只要达到相同的技术效果，所述基站不限于特定技术词汇，需要说明的是，在本申请实施例中仅以NR系统中的基站为例，但是并不限定基站的具体类型。
下面结合附图，通过具体的实施例及其应用场景对本申请实施例提供的初始下行带宽部分(BandWidth Part，BWP)的子载波间隔(SubCarrier Spacing，SCS)的指示方法和设备进行详细地说明。
如图2所示，本申请实施例提供一种初始下行BWP的SCS的指示方法200，该方法可以由终端执行，换言之，该方法可以由安装在终端的软件或硬件来执行，该方法包括如下步骤。
S202：终端根据如下至少之一确定初始下行BWP的SCS：同步信号和物理广播块(Synchronization Signal and PBCH Block，SSB)所在的频率位置；SSB的同步栅格号；SSB的运行载波所在的第一频段；SSB的SCS；目标信令指示。
该实施例例如，SSB所在的频率位置与初始下行BWP的SCS之间存在关联关系，例如，SSB所在的频率位置为频率1，初始下行BWP的SCS为240KHz(后续省略Hz)；SSB所在的频率位置为频率2，初始下行BWP的SCS为480K；等等。这样，终端在确定出SSB所在的频率位置之后，根据上述关联关系即可得到初始下行BWP的SCS。
同理，该实施例还可以是SSB的同步栅格号与初始下行BWP的SCS之 间存在关联关系，终端在确定出SSB的同步栅格号之后，根据上述关联关系即可得到初始下行BWP的SCS。该实施例还可以是SSB的运行载波所在的第一频段与初始下行BWP的SCS之间存在关联关系，终端在确定出SSB的运行载波所在的第一频段之后，根据上述关联关系即可得到初始下行BWP的SCS。
可选地，上述第一频段包括如下之一：1)特定频率范围，例如FR3或者FR2x，其中，FR3的频率高于52.6GHz；2)特定频率范围内的特定频段，例如，FR2，FR2x或者FR3中的特定频段。
该实施例又例如，SSB的SCS与初始下行BWP的SCS之间存在关联关系，终端在确定出SSB的SCS之后，根据上述关联关系即可得到初始下行BWP的SCS。具体例如，SSB的SCS与初始下行BWP的SCS相等，终端直接将SSB的SCS作为初始下行BWP的SCS。又例如，SSB的SCS与初始下行BWP的SCS有倍数关系，终端根据倍数关系在得到SSB的SCS后推导出初始下行BWP的SCS。
该实施例再例如，S202之前，终端可以接收来自于网络侧设备的目标信令，该目标信令用于指示初始下行BWP的SCS。该目标信令可以是系统信令或无线资源控制(Radio Resource Control，RRC)信令。
上述多个例子中，终端均是以S202中提到的五种信息之一来确定初始下行BWP的SCS，实际上，终端还可以根据上述五种信息中的至少两者来确定初始下行BWP的SCS。例如，终端根据SSB的SCS和目标信令指示确定初始下行BWP的SCS。具体例如，在SSB的SCS为120K的情况下，将SSB的SCS作为初始下行BWP的SCS，即初始下行BWP的SCS也为120K；在SSB的SCS为480K或960K的情况下，根据目标信令指示确定初始下行BWP的SCS。
可选地，S202之后还可以包括如下步骤：终端根据初始下行BWP的SCS，在初始下行BWP上进行信道或信号的传输。该信道或信号可以与初始接入过程相关，例如包括随机接入前导码(preamble)，物理下行控制信道(Physical  Downlink Control Channel，PDCCH)，物理下行共享信道(Physical Downlink Shared Channel，PDSCH)等。
本申请实施例提供的初始下行BWP的SCS的指示方法，终端可以根据如下至少之一确定初始下行BWP的SCS：SSB所在的频率位置；SSB的同步栅格号；SSB的运行载波所在的第一频段；SSB的SCS；目标信令指示。本申请实施例解决了终端无法确定始下行BWP的SCS，影响通信效率的问题，便于提高通信效率。
可选地，实施例200中提到的根据所述至少之一确定初始下行BWP的SCS可以包括如下三者之一。
1)将SSB的SCS作为所述初始下行BWP的SCS，该例子中，SSB的SCS与初始下行BWP的SCS相等。
2)根据SSB的SCS和所述目标信令指示确定所述初始下行BWP的SCS。该例子具体可以是根据SSB的SCS和所述目标信令中的指示域来确定初始下行BWP的SCS，该指示域用于指示初始下行BWP的SCS。
3)根据所述目标信令指示确定所述初始下行BWP的SCS，该目标信令可以是系统信令或RRC信令。该例子具体可以是根据目标信令中的指示域来确定初始下行BWP的SCS，该指示域用于指示初始下行BWP的SCS。
上述2)中提到的根据SSB的SCS和所述目标信令指示确定所述初始下行BWP的SCS包括如下两者的至少之一。
a)在SSB的SCS为第一目标SCS的情况下，将SSB的SCS作为所述初始下行BWP的SCS。
b)在SSB的SCS为第二目标SCS的情况下，根据所述目标信令指示确定所述初始下行BWP的SCS。
该实施例中，第一目标SCS和第二目标SCS不等，例如，第一目标SCS可以是120K，第二目标SCS可以是480K或960K。又例如，第一目标SCS可以是480K或960K，第二目标SCS可以是120K。
在一个例子中，SSB的SCS有多种选择，比如120K，480K，960K；初 始下行BWP的SCS也有多种可能性，比如120K，480K，960K。当SSB的SCS为120K时，直接默认初始下行BWP的SCS也为120K，即初始下行BWP的SCS与SSB的SCS绑定；若SSB的SCS为480K和/或960K时，初始下行BWP的SCS与SSB的SCS没有任何关系，则通过目标信令去指示初始下行BWP的SCS是为480K还是960K，该目标信令具体可以是系统信令中的公共子载波间隔(subCarrierSpacingCommon)指示域。
上述1)中提到的将SSB的SCS作为所述初始下行BWP的SCS包括：在SSB的SCS为第三目标SCS的情况下，将SSB的SCS作为所述初始下行BWP的SCS。
上述3)中提到的根据所述目标信令指示确定所述初始下行BWP的SCS包括：在SSB的SCS为第四目标SCS的情况下，根据所述目标信令指示确定所述初始下行BWP的SCS。
上述两个实施例可以独立实施，这样，第三目标SCS和第四目标SCS可以相等也可以不等。上述两个实施例可以同时实施，这样，第三目标SCS和第四目标SCS可以不等，例如，第三目标SCS可以是120K，第四目标SCS可以是480K或960K。又例如，第三目标SCS可以是480K或960K，第四目标SCS可以是120K。
可选地，上述2)或3)中提到的所述目标信令包括指示域；在SSB的SCS为第五目标SCS的情况下，所述指示域用于指示目标信息；和/或在SSB的SCS为第六目标SCS的情况下，所述指示域用于指示所述初始下行BWP的SCS。
该实施例中，目标信息可以与初始下行BWP的SCS不同，或者说，在SSB的SCS为第五目标SCS的情况下，所述指示域不用于指示所述初始下行BWP的SCS。第五目标SCS和第六目标SCS不等，例如，第五目标SCS可以是120K，第六目标SCS可以是480K或960K。又例如，第五目标SCS可以是480K或960K，第六目标SCS可以是120K。
在一个例子中，在SSB的SCS为第五目标SCS的情况下，系统信息里 的指示域subCarrierSpacingCommon不用指示初始下行BWP的SCS，此时，初始下行BWP的SCS可以与SSB的SCS相等，指示域subCarrierSpacingCommon不用于指示初始下行BWP的SCS；在SSB的SCS为第六目标SCS的情况下，系统信息里的指示域subCarrierSpacingCommon用于指示初始下行BWP的SCS，此时，初始下行BWP的SCS可以与SSB的SCS没有关系。因此，在上述两种情况下，subCarrierSpacingCommon指示域的作用不同。
可选地，上述2)或3)中提到的目标信令包括目标指示域，所述目标指示域用于指示所述初始下行BWP的SCS；其中，所述目标指示域为subCarrierSpacingCommon指示域；或所述目标指示域包括第一指示域和第二指示域，所述第一指示域为subCarrierSpacingCommon指示域。
该实施例考虑到，相关技术中的subCarrierSpacingCommon指示域为1比特，无法直接指示多个(即多于两个)初始下行BWP的SCS，因此，可以扩展subCarrierSpacingCommon指示域，例如，扩展为2比特，或者使用额外的第二指示域去指示。其中，第二指示域可以用于独立指示初始下行BWP的SCS，或者，第二指示域可以与subCarrierSpacingCommon指示域通过联合编码的方式指示初始下行BWP的SCS。
可选地，上述实施例中提到的第二指示域可以包括如下至少之一。
1)SSB中的物理下行共享信道解调参考信号(PDSCH-DMRS)位置指示域。
2)SSB中的物理下行控制信道配置系统信息块(如pdcch-ConfigSIB1)指示域。
3)SSB中SSB子载波偏移(ssb-SubcarrierOffset)指示域。
4)SSB中的预留域。
可以理解，第二指示域为上述1)至4)之一时，第二指示域可以用于独立指示初始下行BWP的SCS，或者，第二指示域可以与subCarrierSpacingCommon域通过联合编码的方式指示初始下行BWP的SCS。
第二指示域为上述1)至4)中的至少两者时，这至少两者可以通过联合编码的方式指示初始下行BWP的SCS。
在一个例子中，所述第二指示域包括所述PDSCH-DMRS位置指示域；其中，所述PDSCH-DMRS位置指示域与SSB的SCS之间具有关联关系；或所述PDSCH-DMRS位置指示域用于指示固定的PDSCH-DMRS位置、且与SSB的SCS之间不具有关联关系。
该例子例如，PDSCH-DMRS位置指示域与SSB的SCS之间具有关联关系，具体例如，SSB的SCS为第一值时，PDSCH-DMRS位置为时隙中的第三个符号；SSB的SCS为第二值时，PDSCH-DMRS位置为时隙中的第四个符号，因此，PDSCH-DMRS位置指示域无需指示PDSCH-DMRS位置，进而可以用该PDSCH-DMRS位置指示域来指示初始下行BWP的SCS。
该例子又例如，PDSCH-DMRS位置指示域用于指示固定的PDSCH-DMRS位置，因此，PDSCH-DMRS位置指示域无需进一步指示PDSCH-DMRS的位置，进而可以用该PDSCH-DMRS位置指示域来指示初始下行BWP的SCS。
在一个例子中，所述第二指示域包括所述物理下行控制信道配置系统信息块指示域，所述物理下行控制信道配置系统信息块指示域指示的控制资源集(CORESET)对应的配置表格中有效许可数小于第一阈值，和/或，所述物理下行控制信道配置系统信息块指示域指示的搜索空间(Search space)对应的配置表格中有效许可数小于第二阈值。
该例子中，由于物理下行控制信道配置系统信息块指示域中的一部分指示比特用于指示初始下行BWP的SCS，因此，终端假设CORESET #0对应的配置表格中有效许可数减少，即小于第一阈值，和/或，终端假设Search space #0对应的配置表格中有效许可数减少，即小于第二阈值。
在一个例子中，所述第二指示域包括所述ssb-SubcarrierOffset指示域，其中，所述ssb-SubcarrierOffset指示域中包括有用于指示所述初始下行BWP的SCS的指示比特。
该例子考虑到，针对某些SSB的SCS，可能会有只用到ssb-SubcarrierOffset指示域中的一部分比特的情况，这种情况下，就可以使用多余的比特去指示初始下行BWP的SCS。例如，ssb-SubcarrierOffset指示域有4比特，在某些情况下，比如一些固定的SSB子载波偏移，通过3bit就足够用于指示SSB的子载波间隔偏移，因此多余出来的1bit可以用于指示初始下行BWP的SCS。
为详细说明本申请实施例提供的初始下行BWP的SCS的指示方法，以下将结合两个具体的实施例进行说明。
实施例一：
该实施例可以应用在B52.6GHz系统中，该实施例假设B52.6GHz频段被划分到新的频段，比如FR2x频段或者FR3，此时subCarrierSpacingCommon指示域中有1bit可以用于指示初始下行BWP的SCS。
该实施例可以通过如下三种方式确定初始下行BWP的SCS。
方式1：初始下行BWP的SCS与SSB的SCS一致。
方式2：部分初始下行BWP的SCS与SSB的SCS一致。
方式3：初始下行BWP的SCS与SSB的SCS没有关系，可以通过目标信令去指示初始下行BWP的SCS。
对于方式1，可选地，终端可以默认初始下行BWP的SCS与终端接收到的SSB的SCS一致，因此，这种方式无需使用subCarrierSpacingCommon指示域。
对于方式2，假如SSB的SCS有多种可能性，比如120K，480K和/或960K；初始下行BWP的SCS也有多种可能性，比如120K，480K和/或960K。
当SSB的SCS为120K时，终端直接默认初始下行BWP的SCS也为120K，若SSB的SCS为480K和/或960K时，则通过subCarrierSpacingCommon指示域去指示初始下行BWP的SCS是为480K还是960K。
假如SSB的SCS有多种可能性，例如120K，240K，480K，960K；初始下行BWP的SCS也有多种可能性，例如120K，240K，480K，960K，则 存在以下两种可能性。
可能性1：当SSB的SCS为120K时，终端直接默认初始下行BWP的SCS也为120K，当SSB的SCS为240K时，终端直接默认初始下行BWP的SCS也为240K，若SSB的SCS为480K或960K时，则通过subCarrierSpacingCommon指示域去指示初始下行BWP的SCS是480K还是960K。
可能性2：当SSB的SCS为120K时，终端直接默认初始下行BWP的SCS也为120K；若SSB的SCS为240K，480K或960K时，则通过目标信令中的指示域去指示初始下行BWP的SCS是为240K，480K还是960K。此时由于subCarrierSpacingCommon只有1个bit数，不够指示3种SCS，因此还需要更多的比特数。该实施例可以扩展subCarrierSpacingCommon指示域，例如，扩展为2比特，或者使用额外的第二指示域去指示，具体可以参见前文实施例介绍。
对于方式3，初始下行BWP的SCS与SSB的SCS没有关系，则可以通过subCarrierSpacingCommon指示域去指示初始下行BWP的SCS。若初始下行BWP的SCS的候选组合大于两个，此时由于subCarrierSpacingCommon指示域只有1个比特数，不够指示3种SCS，因此还需要更多的比特数。该实施例可以扩展subCarrierSpacingCommon指示域，例如，扩展为2比特，或者使用额外的第二指示域去指示，具体可以参见前文实施例介绍。
实施例二：
该实施例可以应用在B52.6GHz系统中，该实施例假设B52.6GHz频段被直接划分入FR2频段，此时subCarrierSpacingCommon指示域中1比特已经被用于(60K，120K)的指示，因此需要通过下述方式指示60K和120K之外的SCS。
方式1：初始下行BWP的SCS与SSB的SCS一致。
方式2：部分初始下行BWP的SCS与SSB的SCS一致。
方式3：初始下行BWP的SCS与SSB的SCS没有关系，可以通过目标 信令去指示初始下行BWP的SCS。
对于方式1，可选地，终端可以默认初始下行BWP的SCS与终端接收到的SSB的SC全一致，此时不用使用额外的比特数去指示。
对于方式2，假如SSB的SCS有多种可能性，120K，480K和/或960K；初始下行BWP的SCS也有多种可能性，120K，480K和/或960K。则当SSB的SCS为120K时，直接默认初始下行BWP的SCS也为120K，若SSB的SCS为480K和/或960K时，则通过额外的比特数去指示初始下行BWP的SCS是为480K还是960K。该实施例可以扩展subCarrierSpacingCommon指示域，例如，扩展为2比特，或者使用额外的第二指示域去指示，具体可以参见前文实施例介绍。
对于方式3，初始下行BWP的SCS与SSB的SCS没有关系，则需要通过额外的比特数去指示初始下行BWP的SCS。该实施例可以扩展subCarrierSpacingCommon指示域，例如，扩展为2比特，或者使用额外的第二指示域去指示，具体可以参见前文实施例介绍。
以上结合图2详细描述了根据本申请实施例的初始下行BWP的SCS的指示方法。下面将结合图3详细描述根据本申请另一实施例的初始下行BWP的SCS的指示方法。可以理解的是，从网络侧设备描述的网络侧设备与终端的交互与图2所示的方法中的终端侧的描述相同，为避免重复，适当省略相关描述。
图3是本申请实施例的初始下行BWP的SCS的指示方法实现流程示意图，可以应用在网络侧设备。如图3所示，该方法300包括如下步骤。
S302：网络侧设备与终端在初始下行BWP上进行信道或信号的传输；其中，所述终端用于根据如下至少之一确定初始下行BWP的SCS：SSB所在的频率位置；SSB的同步栅格号；SSB的运行载波所在的第一频段；SSB的SCS；目标信令指示。
在本申请实施例中，终端可以根据如下至少之一确定初始下行BWP的SCS：SSB所在的频率位置；SSB的同步栅格号；SSB的运行载波所在的第 一频段；SSB的SCS；目标信令指示。本申请实施例中，网络侧设备与终端可以在初始下行BWP上进行信道或信号的传输，提高了通信效率。
需要说明的是，本申请实施例提供的初始下行BWP的SCS的指示方法，执行主体可以为初始下行BWP的SCS的指示装置，或者，该初始下行BWP的SCS的指示装置中的用于执行初始下行BWP的SCS的指示方法的控制模块。本申请实施例中以初始下行BWP的SCS的指示装置执行初始下行BWP的SCS的指示方法为例，说明本申请实施例提供的初始下行BWP的SCS的指示装置。
图4是根据本申请实施例的初始下行BWP的SCS的指示装置的结构示意图，该装置400可以对应于其他实施例中的终端。
如图4所示，装置400包括：确定模块402，可以用于根据如下至少之一确定初始下行BWP的SCS：SSB所在的频率位置；SSB的同步栅格号；SSB的运行载波所在的第一频段；SSB的SCS；目标信令指示。
在本申请实施例中，可以根据如下至少之一确定初始下行BWP的SCS：SSB所在的频率位置；SSB的同步栅格号；SSB的运行载波所在的第一频段；SSB的SCS；目标信令指示。本申请实施例解决了无法确定始下行BWP的SCS，影响通信效率的问题，便于提高通信效率。
可选地，作为一个实施例，所述确定模块402用于如下之一：将SSB的SCS作为所述初始下行BWP的SCS；根据SSB的SCS和所述目标信令指示确定所述初始下行BWP的SCS；根据所述目标信令指示确定所述初始下行BWP的SCS。
可选地，作为一个实施例，所述确定模块402用于如下至少之一：在SSB的SCS为第一目标SCS的情况下，将SSB的SCS作为所述初始下行BWP的SCS；在SSB的SCS为第二目标SCS的情况下，根据所述目标信令指示确定所述初始下行BWP的SCS。
可选地，作为一个实施例，所述将SSB的SCS作为所述初始下行BWP的SCS包括：在SSB的SCS为第三目标SCS的情况下，将SSB的SCS作 为所述初始下行BWP的SCS，和/或，所述根据所述目标信令指示确定所述初始下行BWP的SCS包括：在SSB的SCS为第四目标SCS的情况下，根据所述目标信令指示确定所述初始下行BWP的SCS。
可选地，作为一个实施例，所述目标信令包括指示域；在SSB的SCS为第五目标SCS的情况下，所述指示域用于指示目标信息，和/或，在SSB的SCS为第六目标SCS的情况下，所述指示域用于指示所述初始下行BWP的SCS。
可选地，作为一个实施例，所述目标信令包括目标指示域，所述目标指示域用于指示所述初始下行BWP的SCS；其中，所述目标指示域为subCarrierSpacingCommon指示域；或所述目标指示域包括第一指示域和第二指示域，所述第一指示域为subCarrierSpacingCommon指示域。
可选地，作为一个实施例，所述第二指示域包括如下至少之一：SSB中的PDSCH-DMRS位置指示域；SSB中的物理下行控制信道配置系统信息块指示域；SSB中ssb-SubcarrierOffset指示域；SSB中的预留域。
可选地，作为一个实施例，所述第二指示域包括所述PDSCH-DMRS位置指示域，所述PDSCH-DMRS位置指示域与SSB的SCS之间具有关联关系；或所述PDSCH-DMRS位置指示域用于指示固定的PDSCH-DMRS位置、且与SSB的SCS之间不具有关联关系。
可选地，作为一个实施例，所述第二指示域包括所述物理下行控制信道配置系统信息块指示域，所述物理下行控制信道配置系统信息块指示域指示的CORESET对应的配置表格中有效许可数小于第一阈值，和/或，所述物理下行控制信道配置系统信息块指示域指示的搜索空间对应的配置表格中有效许可数小于第二阈值。
可选地，作为一个实施例，所述第二指示域包括所述ssb-SubcarrierOffset指示域，其中，所述ssb-SubcarrierOffset指示域中包括有用于指示所述初始下行BWP的SCS的指示比特。
可选地，作为一个实施例，所述第一频段包括如下之一：特定频率范围； 特定频率范围内的特定频段。
可选地，作为一个实施例，所述装置400还包括：传输模块(未图示)，用于根据所述初始下行BWP的SCS，在所述初始下行BWP上进行信道或信号的传输。
根据本申请实施例的装置400可以参照对应本申请实施例的方法200的流程，并且，该装置400中的各个单元/模块和上述其他操作和/或功能分别为了实现方法200中的相应流程，并且能够达到相同或等同的技术效果，为了简洁，在此不再赘述。
本申请实施例中的初始下行BWP的SCS的指示装置可以是装置，也可以是终端中的部件、集成电路、或芯片。该装置可以是移动终端，也可以为非移动终端。示例性的，移动终端可以包括但不限于上述所列举的终端11的类型，非移动终端可以为服务器、网络附属存储器(Network Attached Storage，NAS)、个人计算机(personal computer，PC)、电视机(television，TV)、柜员机或者自助机等，本申请实施例不作具体限定。
本申请实施例中的初始下行BWP的SCS的指示装置可以为具有操作系统的装置。该操作系统可以为安卓(Android)操作系统，可以为ios操作系统，还可以为其他可能的操作系统，本申请实施例不作具体限定。
本申请实施例提供的初始下行BWP的SCS的指示装置能够实现图2至图3的方法实施例实现的各个过程，并达到相同的技术效果，为避免重复，这里不再赘述。
图5是根据本申请实施例的初始下行BWP的SCS的指示装置的结构示意图，该装置可以对应于其他实施例中的网络侧设备。
如图5所示，装置500包括：传输模块502，可以用于与终端在初始下行BWP上进行信道或信号的传输；其中，所述终端用于根据如下至少之一确定所述初始下行BWP的SCS：SSB所在的频率位置；SSB的同步栅格号；SSB的运行载波所在的第一频段；SSB的SCS；目标信令指示。
在本申请实施例中，终端可以根据如下至少之一确定初始下行BWP的 SCS：SSB所在的频率位置；SSB的同步栅格号；SSB的运行载波所在的第一频段；SSB的SCS；目标信令指示。本申请实施例中，装置500与终端可以在初始下行BWP上进行信道或信号的传输，提高了通信效率。
根据本申请实施例的装置500可以参照对应本申请实施例的方法300的流程，并且，该装置500中的各个单元/模块和上述其他操作和/或功能分别为了实现方法300中的相应流程，并且能够达到相同或等同的技术效果，为了简洁，在此不再赘述。
可选的，如图6所示，本申请实施例还提供一种通信设备600，包括处理器601，存储器602，存储在存储器602上并可在所述处理器601上运行的程序或指令，例如，该通信设备600为终端时，该程序或指令被处理器601执行时实现上述初始下行BWP的SCS的指示方法实施例的各个过程，且能达到相同的技术效果。该通信设备600为网络侧设备时，该程序或指令被处理器601执行时实现上述初始下行BWP的SCS的指示方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
图7为实现本申请实施例的一种终端的硬件结构示意图。
该终端700包括但不限于：射频单元701、网络模块702、音频输出单元703、输入单元704、传感器705、显示单元706、用户输入单元707、接口单元708、存储器709、以及处理器710等部件。
本领域技术人员可以理解，终端700还可以包括给各个部件供电的电源(比如电池)，电源可以通过电源管理系统与处理器710逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图7中示出的终端结构并不构成对终端的限定，终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置，在此不再赘述。
应理解的是，本申请实施例中，输入单元704可以包括图形处理器(Graphics Processing Unit，GPU)7041和麦克风7042，图形处理器7041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元706可包括显示面板7061，可以 采用液晶显示器、有机发光二极管等形式来配置显示面板7061。用户输入单元707包括触控面板7071以及其他输入设备7072。触控面板7071，也称为触摸屏。触控面板7071可包括触摸检测装置和触摸控制器两个部分。其他输入设备7072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
本申请实施例中，射频单元701将来自网络侧设备的下行数据接收后，给处理器710处理；另外，将上行的数据发送给网络侧设备。通常，射频单元701包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器709可用于存储软件程序或指令以及各种数据。存储器709可主要包括存储程序或指令区和存储数据区，其中，存储程序或指令区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外，存储器709可以包括高速随机存取存储器，还可以包括非易失性存储器，其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。
处理器710可包括一个或多个处理单元；可选的，处理器710可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序或指令等，调制解调处理器主要处理无线通信，如基带处理器。可以理解的是，上述调制解调处理器也可以不集成到处理器710中。
其中，处理器710，用于根据如下至少之一确定初始下行BWP的SCS：SSB所在的频率位置；SSB的同步栅格号；SSB的运行载波所在的第一频段；SSB的SCS；目标信令指示。
在本申请实施例中，终端700可以根据如下至少之一确定初始下行BWP的SCS：SSB所在的频率位置；SSB的同步栅格号；SSB的运行载波所在的 第一频段；SSB的SCS；目标信令指示。本申请实施例解决了终端无法确定始下行BWP的SCS，影响通信效率的问题，便于提高通信效率。
本申请实施例提供的终端700还可以实现上述初始下行BWP的SCS的指示方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
具体地，本申请实施例还提供了一种网络侧设备。如图8所示，该网络侧设备800包括：天线81、射频装置82、基带装置83。天线81与射频装置82连接。在上行方向上，射频装置82通过天线81接收信息，将接收的信息发送给基带装置83进行处理。在下行方向上，基带装置83对要发送的信息进行处理，并发送给射频装置82，射频装置82对收到的信息进行处理后经过天线81发送出去。
上述频带处理装置可以位于基带装置83中，以上实施例中网络侧设备执行的方法可以在基带装置83中实现，该基带装置83包括处理器84和存储器85。
基带装置83例如可以包括至少一个基带板，该基带板上设置有多个芯片，如图8所示，其中一个芯片例如为处理器84，与存储器85连接，以调用存储器85中的程序，执行以上方法实施例中所示的网络侧设备操作。
该基带装置83还可以包括网络接口86，用于与射频装置82交互信息，该接口例如为通用公共无线接口(common public radio interface，简称CPRI)。
具体地，本发明实施例的网络侧设备还包括：存储在存储器85上并可在处理器84上运行的指令或程序，处理器84调用存储器85中的指令或程序执行图5所示各模块执行的方法，并达到相同的技术效果，为避免重复，故不在此赘述。
本申请实施例还提供一种可读存储介质，所述可读存储介质上存储有程序或指令，该程序或指令被处理器执行时实现上述初始下行BWP的SCS的指示方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
其中，所述处理器可以为上述实施例中所述的终端中的处理器。所述可读存储介质，包括计算机可读存储介质，如计算机只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等。
本申请实施例另提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现上述初始下行BWP的SCS的指示方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络侧设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述，本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (30)

  1. 一种初始下行BWP的SCS的指示方法，所述方法包括：
    终端根据如下至少之一确定初始下行带宽部分BWP的子载波间隔SCS：
    同步信号和物理广播块SSB所在的频率位置；
    SSB的同步栅格号；
    SSB的运行载波所在的第一频段；
    SSB的SCS；
    目标信令指示。
  2. 根据权利要求1所述的方法，其中，根据所述至少之一确定初始下行BWP的SCS包括如下之一：
    将SSB的SCS作为所述初始下行BWP的SCS；
    根据SSB的SCS和所述目标信令指示确定所述初始下行BWP的SCS；
    根据所述目标信令指示确定所述初始下行BWP的SCS。
  3. 根据权利要求2所述的方法，其中，所述根据SSB的SCS和所述目标信令指示确定所述初始下行BWP的SCS包括如下至少之一：
    在SSB的SCS为第一目标SCS的情况下，将SSB的SCS作为所述初始下行BWP的SCS；
    在SSB的SCS为第二目标SCS的情况下，根据所述目标信令指示确定所述初始下行BWP的SCS。
  4. 根据权利要求2所述的方法，其中，
    所述将SSB的SCS作为所述初始下行BWP的SCS包括：在SSB的SCS为第三目标SCS的情况下，将SSB的SCS作为所述初始下行BWP的SCS；和/或
    所述根据所述目标信令指示确定所述初始下行BWP的SCS包括：在SSB的SCS为第四目标SCS的情况下，根据所述目标信令指示确定所述初始下行BWP的SCS。
  5. 根据权利要求2所述的方法，其中，所述目标信令包括指示域；
    在SSB的SCS为第五目标SCS的情况下，所述指示域用于指示目标信息；和/或
    在SSB的SCS为第六目标SCS的情况下，所述指示域用于指示所述初始下行BWP的SCS。
  6. 根据权利要求2所述的方法，其中，所述目标信令包括目标指示域，所述目标指示域用于指示所述初始下行BWP的SCS；
    其中，所述目标指示域为公共子载波间隔subCarrierSpacingCommon指示域；或
    所述目标指示域包括第一指示域和第二指示域，所述第一指示域为subCarrierSpacingCommon指示域。
  7. 根据权利要求6所述的方法，其中，所述第二指示域包括如下至少之一：
    SSB中的物理下行共享信道解调参考信号PDSCH-DMRS位置指示域；
    SSB中的物理下行控制信道配置系统信息块指示域；
    SSB中SSB子载波偏移ssb-SubcarrierOffset指示域；
    SSB中的预留域。
  8. 根据权利要求7所述的方法，其中，所述第二指示域包括所述PDSCH-DMRS位置指示域；
    其中，所述PDSCH-DMRS位置指示域与SSB的SCS之间具有关联关系；或
    所述PDSCH-DMRS位置指示域用于指示固定的PDSCH-DMRS位置、且与SSB的SCS之间不具有关联关系。
  9. 根据权利要求7所述的方法，其中，所述第二指示域包括所述物理下行控制信道配置系统信息块指示域；
    其中，所述物理下行控制信道配置系统信息块指示域指示的控制资源集CORESET对应的配置表格中有效许可数小于第一阈值；和/或
    所述物理下行控制信道配置系统信息块指示域指示的搜索空间对应的配 置表格中有效许可数小于第二阈值。
  10. 根据权利要求7所述的方法，其中，所述第二指示域包括所述ssb-SubcarrierOffset指示域；
    其中，所述ssb-SubcarrierOffset指示域中包括有用于指示所述初始下行BWP的SCS的指示比特。
  11. 根据权利要求1所述的方法，其中，所述第一频段包括如下之一：
    特定频率范围；
    特定频率范围内的特定频段。
  12. 根据权利要求1所述的方法，其中，所述方法还包括：
    根据所述初始下行BWP的SCS，在所述初始下行BWP上进行信道或信号的传输。
  13. 一种初始下行BWP的SCS的指示方法，所述方法包括：
    网络侧设备与终端在初始下行BWP上进行信道或信号的传输；其中，所述终端用于根据如下至少之一确定所述初始下行BWP的SCS：
    SSB所在的频率位置；
    SSB的同步栅格号；
    SSB的运行载波所在的第一频段；
    SSB的SCS；
    目标信令指示。
  14. 一种初始下行BWP的SCS的指示装置，包括：
    确定模块，用于根据如下至少之一确定初始下行BWP的SCS：
    SSB所在的频率位置；
    SSB的同步栅格号；
    SSB的运行载波所在的第一频段；
    SSB的SCS；
    目标信令指示。
  15. 根据权利要求14所述的装置，其中，所述确定模块用于如下之一：
    将SSB的SCS作为所述初始下行BWP的SCS；
    根据SSB的SCS和所述目标信令指示确定所述初始下行BWP的SCS；
    根据所述目标信令指示确定所述初始下行BWP的SCS。
  16. 根据权利要求15所述的装置，其中，所述确定模块用于如下至少之一：
    在SSB的SCS为第一目标SCS的情况下，将SSB的SCS作为所述初始下行BWP的SCS；
    在SSB的SCS为第二目标SCS的情况下，根据所述目标信令指示确定所述初始下行BWP的SCS。
  17. 根据权利要求15所述的装置，其中，
    所述将SSB的SCS作为所述初始下行BWP的SCS包括：在SSB的SCS为第三目标SCS的情况下，将SSB的SCS作为所述初始下行BWP的SCS；和/或
    所述根据所述目标信令指示确定所述初始下行BWP的SCS包括：在SSB的SCS为第四目标SCS的情况下，根据所述目标信令指示确定所述初始下行BWP的SCS。
  18. 根据权利要求15所述的装置，其中，所述目标信令包括指示域；
    在SSB的SCS为第五目标SCS的情况下，所述指示域用于指示目标信息；和/或
    在SSB的SCS为第六目标SCS的情况下，所述指示域用于指示所述初始下行BWP的SCS。
  19. 根据权利要求15所述的装置，其中，所述目标信令包括目标指示域，所述目标指示域用于指示所述初始下行BWP的SCS；
    其中，所述目标指示域为subCarrierSpacingCommon域；或
    所述目标指示域包括第一指示域和第二指示域，所述第一指示域为subCarrierSpacingCommon域。
  20. 根据权利要求19所述的装置，其中，所述第二指示域包括如下至少 之一：
    SSB中的PDSCH-DMRS位置指示域；
    SSB中的物理下行控制信道配置系统信息块指示域；
    SSB中ssb-SubcarrierOffset指示域；
    SSB中的预留域。
  21. 根据权利要求20所述的装置，其中，所述第二指示域包括所述PDSCH-DMRS位置指示域；
    其中，所述PDSCH-DMRS位置指示域与SSB的SCS之间具有关联关系；或
    所述PDSCH-DMRS位置指示域用于指示固定的PDSCH-DMRS位置、且与SSB的SCS之间不具有关联关系。
  22. 根据权利要求20所述的装置，其中，所述第二指示域包括所述物理下行控制信道配置系统信息块指示域；
    其中，所述物理下行控制信道配置系统信息块指示域指示的CORESET对应的配置表格中有效许可数小于第一阈值；和/或
    所述物理下行控制信道配置系统信息块指示域指示的搜索空间对应的配置表格中有效许可数小于第二阈值。
  23. 根据权利要求20所述的装置，其中，所述第二指示域包括所述ssb-SubcarrierOffset指示域；
    其中，所述ssb-SubcarrierOffset指示域中包括有用于指示所述初始下行BWP的SCS的指示比特。
  24. 根据权利要求14所述的装置，其中，所述第一频段包括如下之一：
    特定频率范围；
    特定频率范围内的特定频段。
  25. 根据权利要求14所述的装置，其中，所述装置还包括：
    传输模块，用于根据所述初始下行BWP的SCS，在所述初始下行BWP上进行信道或信号的传输。
  26. 一种初始下行BWP的SCS的指示装置，包括：
    传输模块，用于与终端在初始下行BWP上进行信道或信号的传输；其中，所述终端用于根据如下至少之一确定所述初始下行BWP的SCS：
    SSB所在的频率位置；
    SSB的同步栅格号；
    SSB的运行载波所在的第一频段；
    SSB的SCS；
    目标信令指示。
  27. 一种终端，包括处理器，存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求1至12任一项所述的初始下行BWP的SCS的指示方法。
  28. 一种网络侧设备，包括处理器，存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求13所述的初始下行BWP的SCS的指示方法。
  29. 一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被所述处理器执行时实现如权利要求1至12任一项所述的初始下行BWP的SCS的指示方法，或者实现如权利要求13所述的初始下行BWP的SCS的指示方法。
  30. 一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如权利要求1至12任一项所述的初始下行BWP的SCS的指示方法，或者实现如权利要求13所述的初始下行BWP的SCS的指示方法。
PCT/CN2022/077266 2021-02-23 2022-02-22 初始下行bwp的scs的指示方法和设备 WO2022179498A1 (zh)

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