Subcarrier spacing determination method and apparatus, terminal, network device and storage medium

Abstract

A subcarrier spacing determination method and apparatus, a terminal, a network device and a storage medium. The subcarrier spacing determination method comprises: on the basis of a predefined rule and / or indication information, determining a reference subcarrier spacing (SCS), wherein the reference SCS comprises at least one of the following: a reference SCS of a subband corresponding to a subband full duplex (SBFD) time-domain unit; and a reference SCS of a guard band in the SBFD time-domain unit. In an SBFD scenario, a terminal can determine, on the basis of a predefined rule or indication information, a reference SCS for determining a frequency-domain resource of a subband and / or a guard band, and accordingly specify a reference SCS determination method, such that the terminal determines the reference SCS in the SBFD scenario, and then determines, on the basis of the reference SCS, a frequency-domain resource of the subband and / or a frequency-domain resource of the guard band.

Description

Subcarrier spacing determination method and apparatus, terminal, network equipment, storage medium Technical Field

[0001] This disclosure relates to the field of communication technology, and more specifically, to a method for determining subcarrier spacing, a device for determining subcarrier spacing, a terminal, network equipment, a communication system, and a storage medium. Background Technology

[0002] With the development of communication technology, in order to improve the communication efficiency between network devices and terminals, Subband Full Duplex (SBFD) technology has been proposed.

[0003] Network devices can configure uplink subbands in downlink time domain units or flexible time domain units. These time domain units are called SBFD time domain units. Network devices can receive information sent by terminals in the uplink subband of an SBFD time domain unit, and can send information to terminals in frequency domain resources outside the corresponding uplink subband of the SBFD time domain unit. Thus, network devices can achieve full-duplex communication in SBFD time domain units. However, SBFD technology also has some technical problems that need to be solved.

[0004] Summary of the Invention

[0005] The embodiments of this disclosure provide a method and apparatus for determining subcarrier spacing, a terminal, a network device, and a storage medium to solve technical problems in related technologies.

[0006] According to a first aspect of the present disclosure, a subcarrier spacing determination method is proposed, executed by a terminal, the method comprising: determining a reference subcarrier spacing SCS based on first information, wherein the reference SCS includes at least one of the following: a reference SCS of a subband corresponding to a subband full-duplex SBFD time domain unit; a reference SCS of a guard band in the SBFD time domain unit.

[0007] According to a second aspect of the present disclosure, a subcarrier spacing determination method is provided, performed by a network device, the method comprising: determining a reference subcarrier spacing SCS based on first information, wherein the reference SCS includes at least one of the following: a reference SCS of a subband corresponding to a subband full-duplex SBFD time domain unit; a reference SCS of a guard band in the SBFD time domain unit.

[0008] According to a third aspect of the present disclosure, a subcarrier spacing determination apparatus is provided, the apparatus comprising: a processing module configured to determine a reference subcarrier spacing SCS based on first information, wherein the reference SCS includes at least one of the following: a reference SCS of a subband corresponding to a subband full-duplex SBFD time domain unit; and a reference SCS of a guard band in the SBFD time domain unit.

[0009] According to a fourth aspect of the present disclosure, a subcarrier spacing determination apparatus is provided, the apparatus comprising: a processing module configured to determine a reference subcarrier spacing SCS based on first information, wherein the reference SCS includes at least one of the following: a reference SCS of a subband corresponding to a subband full-duplex SBFD time domain unit; and a reference SCS of a guard band in the SBFD time domain unit.

[0010] According to a fifth aspect of the present disclosure, a terminal is provided, comprising: one or more processors; wherein the terminal is configured to perform the subcarrier spacing determination method according to any one of the first aspect and optional embodiments thereof.

[0011] According to a sixth aspect of the present disclosure, a network device is provided, comprising: one or more processors; wherein the network device is configured to perform the subcarrier spacing determination method according to any one of the second aspect and optional embodiments thereof.

[0012] According to a seventh aspect of the present disclosure, a communication system is provided, including a terminal and a network device, wherein the terminal is configured to implement the subcarrier spacing determination method of any one of the first aspects and optional embodiments of the first aspect, and the network device is configured to implement the subcarrier spacing determination method of any one of the second aspects and optional embodiments of the second aspect.

[0013] According to an eighth aspect of the present disclosure, a storage medium is provided that stores instructions that, when executed on a communication device, cause the communication device to perform any one of the first aspect, an optional embodiment of the first aspect, a second aspect, and an optional embodiment of the second aspect, the subcarrier spacing determination method.

[0014] According to a ninth aspect of the present disclosure, a program product is provided that, when executed by a communication device, causes the communication device to perform any one of the first aspect, the optional embodiment of the first aspect, the second aspect, and the optional embodiment of the second aspect, the subcarrier spacing determination method.

[0015] According to embodiments of this disclosure, in an SBFD scenario, the terminal can determine the reference SCS for determining the frequency domain resources of the sub-band and / or guard band based on predefined rules or indication information. Accordingly, the method for determining the reference SCS is clarified, so that the terminal can determine the reference SCS in the SBFD scenario and then determine the frequency domain resources of the sub-band and / or guard band based on the reference SCS. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1A is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0018] Figure 1B is a schematic diagram of a sub-band according to an embodiment of the present disclosure.

[0019] Figure 1C is a schematic diagram illustrating a protection band according to an embodiment of the present disclosure.

[0020] Figure 2 is an interactive schematic diagram illustrating a subcarrier spacing determination method according to an embodiment of the present disclosure.

[0021] Figure 3 is a schematic flowchart illustrating a subcarrier spacing determination method according to an embodiment of the present disclosure.

[0022] Figure 4 is a schematic flowchart illustrating a subcarrier spacing determination method according to an embodiment of the present disclosure.

[0023] Figure 5 is a schematic block diagram of a subcarrier spacing determination device according to an embodiment of the present disclosure.

[0024] Figure 6 is a schematic block diagram of a subcarrier spacing determination device according to an embodiment of the present disclosure.

[0025] Figure 7A is a schematic diagram of the structure of the communication device proposed in an embodiment of this disclosure.

[0026] Figure 7B is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. Detailed Implementation

[0027] Embodiments of this disclosure provide a method and apparatus for determining subcarrier spacing, a terminal, a network device, and a storage medium.

[0028] In a first aspect, embodiments of this disclosure propose a subcarrier spacing determination method, executed by a terminal, the method comprising: determining a reference subcarrier spacing SCS based on first information, wherein the reference SCS includes at least one of the following: a reference SCS of the subband corresponding to a subband full-duplex SBFD time domain unit; a reference SCS of the guard band in the SBFD time domain unit.

[0029] In conjunction with some embodiments of the first aspect, in some embodiments, the first information includes at least one of the following: predefined rules; instruction information.

[0030] In the above embodiments, in the SBFD scenario, the terminal can determine the reference SCS for determining the frequency domain resources of the sub-band and / or guard band based on predefined rules or indication information. Accordingly, the method for determining the reference SCS is clarified so that the terminal can determine the reference SCS in the SBFD scenario and then determine the frequency domain resources of the sub-band and / or guard band based on the reference SCS.

[0031] In conjunction with some embodiments of the first aspect, in some embodiments, the predefined rule includes one of the following: the reference SCS is determined based on the SCS of the bandwidth portion (BWP); the reference SCS is determined based on an SCS list; the reference SCS is determined based on a predefined SCS; the reference SCS of the uplink subband and / or the reference SCS of the guard band are determined based on the reference SCS of the downlink subband; the reference SCS of the downlink subband and / or the reference SCS of the guard band are determined based on the reference SCS of the uplink subband; the reference SCS of the uplink subband and / or the reference SCS of the downlink subband are determined based on the reference SCS of the guard band.

[0032] In conjunction with some embodiments of the first aspect, in some embodiments, the BWP includes at least one of the following: an initial BWP; an activated BWP.

[0033] In conjunction with some embodiments of the first aspect, in some embodiments, the initial BWP includes at least one of the following: an initial uplink BWP; an initial downlink BWP.

[0034] In conjunction with some embodiments of the first aspect, in some embodiments, the activated BWP includes at least one of the following: an activated uplink BWP; an activated downlink BWP.

[0035] In conjunction with some embodiments of the first aspect, in some embodiments, the reference SCS is determined based on an SCS list, including at least one of the following: the reference SCS is the largest SCS in the SCS list; the reference SCS is the smallest SCS in the SCS list; the reference SCS is the first SCS in the SCS list; or the reference SCS is the last SCS in the SCS list.

[0036] In conjunction with some embodiments of the first aspect, in some embodiments, the indication information is used to indicate an SCS as the reference SCS in the SCS list; or, the indication information is used to indicate an SCS as the reference SCS.

[0037] In conjunction with some embodiments of the first aspect, in some embodiments, the SCS list includes at least one of the following: a conventional SCS list; an SBFD-specific SCS list.

[0038] In conjunction with some embodiments of the first aspect, in some embodiments, the conventional SCS list includes at least one of the following: a conventional uplink SCS list; a conventional downlink SCS list.

[0039] In conjunction with some embodiments of the first aspect, in some embodiments, the SBFD-dedicated SCS list includes at least one of the following: an SBFD-dedicated uplink SCS list; and an SBFD-dedicated downlink SCS list.

[0040] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: determining frequency domain resources corresponding to at least one of the following based on the reference SCS: the frequency domain offset of the sub-band and / or the guard band relative to a reference point; and the frequency domain range of the sub-band and / or the guard band.

[0041] In conjunction with some embodiments of the first aspect, in some embodiments, the reference point is determined based on one of the following: Point A; the starting position of the carrier; the starting position of the BWP; or the Common Resource Block (CRB) index.

[0042] In conjunction with some embodiments of the first aspect, in some embodiments, the frequency domain offset is determined based on one of the following: the number of resource blocks specified by predefined rules; the number of resource blocks indicated by indication information; or the number of resource blocks determined based on the resource indication value (RIV).

[0043] In conjunction with some embodiments of the first aspect, in some embodiments, the frequency domain range is determined based on one of the following: the number of resource blocks specified by predefined rules; the number of resource blocks indicated by indication information; or the number of resource blocks determined based on RIV.

[0044] Secondly, embodiments of this disclosure propose a subcarrier spacing determination method, executed by a network device, the method comprising: determining a reference subcarrier spacing SCS based on second information, wherein the reference SCS includes at least one of the following: a reference SCS of the subband corresponding to the subband full-duplex SBFD time domain unit; a reference SCS of the guard band in the SBFD time domain unit.

[0045] In conjunction with some embodiments of the second aspect, in some embodiments, the second information includes at least one of the following: predefined rules; network device implementation; wherein, when the second information includes network device implementation, the method further includes: sending indication information to the terminal, the indication information being used to indicate the reference SCS.

[0046] In the above embodiments, in the SBFD scenario, for the reference SCS used to determine the frequency domain resources of the sub-band and / or guard band, the network device and the terminal can determine it based on predefined rules, or the network device can indicate it to the terminal through indication information after determining it. Accordingly, the method of determining the reference SCS is clarified, so that the terminal can determine the reference SCS in the SBFD scenario, and then determine the frequency domain resources of the sub-band and / or guard band based on the reference SCS.

[0047] In conjunction with some embodiments of the second aspect, in some embodiments, the predefined rule includes one of the following: the reference SCS is determined based on the SCS of the bandwidth portion (BWP); the reference SCS is determined based on an SCS list; the reference SCS is determined based on a predefined SCS; the reference SCS of the uplink subband and / or the reference SCS of the guard band are determined based on the reference SCS of the downlink subband; the reference SCS of the downlink subband and / or the reference SCS of the guard band are determined based on the reference SCS of the uplink subband; the reference SCS of the uplink subband and / or the reference SCS of the downlink subband are determined based on the reference SCS of the guard band.

[0048] In conjunction with some embodiments of the second aspect, in some embodiments, the BWP includes at least one of the following: an initial BWP; an activated BWP.

[0049] In conjunction with some embodiments of the second aspect, in some embodiments, the initial BWP includes at least one of the following: an initial uplink BWP; an initial downlink BWP.

[0050] In conjunction with some embodiments of the second aspect, in some embodiments, the activated BWP includes at least one of the following: an activated uplink BWP; an activated downlink BWP.

[0051] In conjunction with some embodiments of the second aspect, in some embodiments, the reference SCS is determined based on an SCS list, including at least one of the following: the reference SCS is the largest SCS in the SCS list; the reference SCS is the smallest SCS in the SCS list; the reference SCS is the first SCS in the SCS list; the reference SCS is the last SCS in the SCS list.

[0052] In conjunction with some embodiments of the second aspect, in some embodiments, the indication information is used to indicate an SCS as the reference SCS in the SCS list; or, the indication information is used to indicate an SCS as the reference SCS.

[0053] In conjunction with some embodiments of the second aspect, in some embodiments, the SCS list includes at least one of the following: a conventional SCS list; an SBFD-specific SCS list.

[0054] In conjunction with some embodiments of the second aspect, in some embodiments, the conventional SCS list includes at least one of the following: a conventional uplink SCS list; a conventional downlink SCS list.

[0055] In conjunction with some embodiments of the second aspect, in some embodiments, the SBFD-dedicated SCS list includes at least one of the following: an SBFD-dedicated uplink SCS list; and an SBFD-dedicated downlink SCS list.

[0056] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: determining frequency domain resources corresponding to at least one of the following based on the reference SCS: the frequency domain offset of the sub-band and / or the guard band relative to a reference point; and the frequency domain range of the sub-band and / or the guard band.

[0057] In conjunction with some embodiments of the second aspect, in some embodiments, the reference point is determined based on one of the following: Point A; the starting position of the carrier; the starting position of the BWP; or the Common Resource Block (CRB) index.

[0058] In conjunction with some embodiments of the second aspect, in some embodiments, the frequency domain offset is determined based on one of the following: the number of resource blocks specified by predefined rules; the number of resource blocks indicated by indication information; or the number of resource blocks determined based on the resource indication value (RIV).

[0059] In conjunction with some embodiments of the second aspect, in some embodiments, the frequency domain range is determined based on one of the following: the number of resource blocks specified by predefined rules; the number of resource blocks indicated by indication information; or the number of resource blocks determined based on RIV.

[0060] Thirdly, embodiments of this disclosure provide a subcarrier spacing determination apparatus, the apparatus comprising: a processing module configured to determine a reference subcarrier spacing SCS according to predefined rules and / or indication information, wherein the reference SCS includes at least one of the following: a reference SCS of a subband corresponding to a subband full-duplex SBFD time domain unit; a reference SCS of a guard band in the SBFD time domain unit.

[0061] Fourthly, embodiments of this disclosure provide a subcarrier spacing determination apparatus, the apparatus comprising: a processing module configured to determine a reference subcarrier spacing (SCS) according to a predefined rule, and / or a transmitting module configured to transmit indication information to a terminal, the indication information being used to indicate the reference subcarrier spacing (SCS) to the terminal; wherein the reference SCS includes at least one of the following: a reference SCS of a subband corresponding to a subband full-duplex SBFD time-domain unit; a reference SCS of a guard band in the SBFD time-domain unit.

[0062] Fifthly, embodiments of this disclosure provide a terminal comprising: one or more processors; wherein the terminal is configured to execute the subcarrier spacing determination method according to any one of the first aspects and optional embodiments thereof.

[0063] In a sixth aspect, embodiments of this disclosure provide a network device comprising: one or more processors; wherein the network device is configured to perform the subcarrier spacing determination method described in any one of the alternative embodiments of the second aspect.

[0064] In a seventh aspect, embodiments of this disclosure provide a communication system including a terminal and a network device, wherein the terminal is configured to implement the subcarrier spacing determination method according to any one of the optional embodiments of the first aspect, and the network device is configured to implement the subcarrier spacing determination method according to any one of the optional embodiments of the second aspect.

[0065] Eighthly, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform any one of the first aspect, the optional embodiments of the first aspect, the second aspect, and the optional embodiments of the second aspect, to determine the subcarrier spacing.

[0066] In a ninth aspect, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform any one of the first aspect, the optional embodiments of the first aspect, the second aspect, and the optional embodiments of the second aspect, the subcarrier spacing determination method.

[0067] In a tenth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in any one of the first aspect, alternative embodiments of the first aspect, the second aspect, and alternative embodiments of the second aspect.

[0068] It is understood that the aforementioned subcarrier spacing determination device, communication equipment, communication system, storage medium, program product, and computer program are all used to execute the method proposed in the embodiments of this disclosure. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0069] This disclosure provides a subcarrier spacing determination method and apparatus, a terminal, a network device, and a storage medium. In some embodiments, the terms "subcarrier spacing determination method" and "information processing method," "communication method," etc., can be used interchangeably; the terms "subcarrier spacing determination apparatus" and "information processing apparatus," "communication apparatus," etc., can be used interchangeably; and the terms "information processing system," "communication system," etc., can be used interchangeably.

[0070] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0071] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0072] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0073] In the embodiments of this disclosure, unless otherwise stated, elements expressed in the singular, such as “a,” “an,” “the,” “the,” “the,” “the,” “the,” “the,” “this,” etc., may mean “one and only one,” or “one or more,” “at least one,” etc.

[0074] For example, when using articles such as "a", "an", and "the" in translation, the noun following the article can be understood as either a singular or a plural form.

[0075] In the embodiments disclosed herein, "multiple" refers to two or more.

[0076] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0077] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.

[0078] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0079] The prefixes such as "first" and "second" in the embodiments of this disclosure are only for distinguishing different descriptive objects and do not constitute restrictions on the position, order, priority, number or content of the descriptive objects. For the description of the descriptive objects, please refer to the description in the claims or the context of the embodiments. The use of prefixes should not constitute unnecessary restrictions.

[0080] For example, if the descriptive object is "field," then the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is "level," then the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers; there can be one or more. For example, in "first device," the number of "devices" can be one or more. In addition, objects modified by different prefixes can be the same or different. For example, if the descriptive object is "device," then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the descriptive object is "information," then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0081] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0082] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0083] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0084] In some embodiments, devices, etc., can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as “device”, “equipment”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, and “subject” can be used interchangeably.

[0085] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0086] 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," and "bandwidth part (BWP)" can be used interchangeably.

[0087] 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", and "client" can be used interchangeably.

[0088] In some embodiments, access network devices, core network devices, or network devices can be replaced by terminals. For example, embodiments of this disclosure can also be applied to structures where communication between access network devices, core network devices, or network devices and terminals is replaced by communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the structure can also be configured such that the terminal has all or part of the functions of the access network device. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel, and uplink link, downlink, etc., can be replaced with sidelink link.

[0089] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, core network device, or network device may also be configured to have all or some of the functions of the terminal.

[0090] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0091] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0092] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0093] Figure 1A is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0094] As shown in Figure 1, the communication system 100 includes a terminal 101 and a network device 102, wherein the network device includes at least one of the following: an access network device and a core network device.

[0095] In some embodiments, terminal 101 includes, but is not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home.

[0096] In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system.

[0097] In some embodiments, a core network device may be a single device comprising one or more network elements, or it may be multiple devices or a group of devices, each comprising all or part of the aforementioned one or more network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), or a Next Generation Core (NGC).

[0098] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0099] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0100] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.

[0101] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1A, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1A are illustrative. The communication system may include all or some of the main bodies in FIG1A, or it may include other main bodies outside of FIG1A. The number and form of each main body are arbitrary. Each main body may be physical or virtual. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. The connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0102] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0103] In some embodiments, network devices can configure uplink subbands for terminals. These time-domain units configured with uplink subbands can be called Subband Full Duplex (SBFD) time-domain units, while time-domain units not configured with uplink subbands and / or downlink subbands can be called non-SBFD (or non-SBFD) time-domain units.

[0104] In some embodiments, network devices can configure downlink subbands for terminals. These time-domain units configured with downlink subbands can be called Subband Full Duplex (SBFD) time-domain units, while time-domain units not configured with downlink subbands can be called non-SBFD (or non-SBFD) time-domain units.

[0105] The present disclosure does not limit the temporal units, which may include at least one of the following: frame, subframe, slot, symbol, and sub-slot.

[0106] Network devices can receive information sent by terminals in the uplink subband of the SBFD time domain unit, and can send information to terminals in the frequency domain resources outside the corresponding uplink subband of the SBFD time domain unit, thus enabling network devices to achieve full-duplex communication in the SBFD time domain unit.

[0107] Figure 1B is a schematic diagram of a sub-band according to an embodiment of the present disclosure.

[0108] As shown in Figure 1B, the time slot structure of the six time slots from slot#n to slot#n+5 is DFFFUU, where D represents downlink time slot, F represents flexible time slot, and U represents uplink time slot. That is, slot#n is a downlink time slot, slot#n+1 to slot#n+3 are flexible time slots, and slot#4 to slot#n+5 are uplink time slots.

[0109] The flexible time slot is configured with an uplink subband (UL subband). In the frequency domain resources corresponding to the flexible time slot, the frequency domain resources other than the uplink subband are used for downlink transmission. This part of the frequency domain resources can also be called the downlink subband (DL subband).

[0110] In some embodiments of this disclosure, the subband may include an uplink subband and a downlink subband.

[0111] For example, an uplink subband can be a subband configured for uplink communication on the frequency domain resources corresponding to a downlink time domain unit or a flexible time domain unit. In this case, the downlink subband can be a frequency domain resource other than the uplink subband within the frequency domain resources corresponding to the downlink time domain unit or the flexible time domain unit.

[0112] For example, a downlink subband can be a subband configured for uplink communication on the frequency domain resources corresponding to an uplink time domain unit or a flexible time domain unit. In this case, the uplink subband can be a frequency domain resource other than the downlink subband within the frequency domain resources corresponding to the uplink time domain unit or the flexible time domain unit.

[0113] Figure 1C is a schematic diagram illustrating a protection band according to an embodiment of the present disclosure.

[0114] As shown in Figure 1C, based on Figure 1B, a guard band (GB) can be set between the uplink sub-band and downlink sub-band in the flexible time slot. The guard band can realize frequency domain isolation between the uplink sub-band and downlink sub-band and alleviate the interference between the uplink sub-band and downlink sub-band.

[0115] In some embodiments of this disclosure, the sub-band may include an uplink sub-band and a downlink sub-band. When a guard band is configured in the frequency domain resources corresponding to the time domain unit:

[0116] For example, the uplink subband can be a subband configured for uplink communication on the frequency domain resources corresponding to the downlink time domain unit or flexible time domain unit. In this case, the downlink subband can be a frequency domain resource other than the uplink subband and the guard band within the frequency domain resources corresponding to the downlink time domain unit or flexible time domain unit.

[0117] For example, the downlink subband can be a subband configured for uplink communication on the frequency domain resources corresponding to the uplink time domain unit or flexible time domain unit. In this case, the uplink subband can be a frequency domain resource other than the downlink subband and the guard band in the frequency domain resources corresponding to the uplink time domain unit or flexible time domain unit.

[0118] In some embodiments, the frequency domain resources corresponding to the uplink sub-band, downlink sub-band, and guard band in the SBFD time domain unit can be determined by any of the following methods:

[0119] With the frequency domain resources of the uplink subband explicitly configured and the frequency domain resources of the downlink subband explicitly configured, the resources of the guard band can be derived based on the positions of the uplink and downlink subbands.

[0120] If the frequency domain resources of the uplink subband are explicitly configured, and the frequency domain resources of the guard band are explicitly configured, then the resources of the downlink subband can be derived based on the positions of the uplink subband and the guard band.

[0121] The uplink subband can be located on one side of the carrier or in the middle of the carrier. The current relevant regulations are as follows:

[0122] The maximum number of UL subbands used for SBFD operation within an SBFD symbol on a Time Division Duplex (TDD) carrier is 1. The uplink subband can be located on one side of the carrier or in the middle. For semi-static indication of the SBFD subband frequency position, you can select downwards from the following options:

[0123] Option 1: Explicitly configure the frequency positions of the uplink and downlink subbands. Guard bands (if any) can be implicitly exported as resource blocks (RBs) that are not in the uplink subband or within the downlink subband.

[0124] Option 2: The frequency position of the UL sub-band and the number of RBs (if any) in the guard band are explicitly configured. The DL sub-band is implicitly derived as RBs not in the UL sub-band or guard band.

[0125] When explicitly configuring the frequency domain resources of the uplink and / or downlink subbands, SBFD can perform the above configuration at the granularity of Common Resource Blocks (CRBs). For example, the RBs in options 1 and 2 above can be CRBs. Of course, it is not limited to configuring at the CRB granularity; it can also be configured at the granularity of Physical Resource Blocks (PRBs), Virtual Resource Blocks (VRBs), etc., or based on frequency domain resources, such as Hz, MHz, GHz, GSCN (Global Synchronization Channel Number), ARFCN (Absolute Radio Frequency Channel Number), etc. However, the starting RBs and reference sub-carrier spacing (SCS) of the frequency domain resources of the uplink and / or downlink subbands need to be further determined, and the relevant conclusions are as follows:

[0126] Subband frequency domain resources are identical across different SBFD symbols within a TDD carrier. A reference CRB grid is used to indicate the frequency locations of cell-specific UL and DL subbands (if explicitly indicated).

[0127] Support RB-level granularity for semi-static indication of SBFD subband frequency position; refer to RAN4 guidelines on subband / guard band size (if applicable); further discussion of reference start RB and reference SCS.

[0128] In some embodiments, for TDD carriers, network devices can configure different carrier lists based on different SCS. From the terminal's perspective, the terminal can determine its associated carrier based on the SCS of the active bandwidth part (Bandwidth Part). For example, the SCS of the active downlink BWP is the same as the SCS of the associated downlink carrier, and the SCS of the active uplink BWP is the same as the SCS of the associated uplink carrier. The SCS of the uplink carrier and the downlink carrier are configured separately, and they can be the same or different.

[0129] As shown in Figure 1B, for the SBFD scenario, there may be both uplink and downlink subbands, and even guard bands as shown in Figure 1C. Therefore, in order to determine the frequency domain resources of the subbands and guard bands in the SBFD scenario, it is necessary to determine the reference SCS used to determine the frequency domain resources.

[0130] Figure 2 is an interactive schematic diagram illustrating a subcarrier spacing determination method according to an embodiment of the present disclosure.

[0131] As shown in Figure 2, the subcarrier spacing determination method may include the following steps:

[0132] In step S201, the reference subcarrier spacing SCS is determined based on the first information.

[0133] In some embodiments, the first information includes at least one of the following: predefined rules; instruction information.

[0134] In some embodiments, the reference SCS includes at least one of the following:

[0135] The reference SCS of the frequency domain resources of the sub-band corresponding to the sub-band full-duplex SBFD time domain unit can be used to determine the frequency domain resources of the sub-band.

[0136] The reference SCS for the frequency domain resources of the guard band in the SBFD time domain cell can be used to determine the frequency domain resources of the guard band.

[0137] In some embodiments, the subband in the SBFD time domain unit may include an uplink subband, for example, the uplink subband configured in the frequency domain resources corresponding to the downlink time domain unit or the flexible time domain unit, and may also include a downlink subband, for example, the downlink resources outside the uplink subband and / or guard band used for downlink transmission in the frequency domain resources corresponding to the downlink time domain unit or the flexible time domain unit configured with an uplink subband.

[0138] In some embodiments, the subband in the SBFD time domain unit may include a downlink subband, for example, the downlink subband configured in the frequency domain resources corresponding to the uplink time domain unit or the flexible time domain unit, and may also include an uplink subband, for example, the uplink subband and / or uplink resources outside the guard band used for uplink transmission in the frequency domain resources corresponding to the uplink time domain unit or the flexible time domain unit configured with downlink subbands.

[0139] In some embodiments, the indication information includes at least one of the following: System Information (SI), Radio Resource Control (RRC) signaling, Downlink Control Information (DCI), and Media Access Control Control Element (MAC CE). The System Information may include, for example, a System Information Block (SIB), which may be SIB1 or other SIBs, such as SIBx.

[0140] According to embodiments of this disclosure, in an SBFD scenario, the terminal can determine the reference SCS for determining the frequency domain resources of the sub-band and / or guard band based on predefined rules or indication information. Accordingly, the method for determining the reference SCS is clarified, so that the terminal can determine the reference SCS in the SBFD scenario and then determine the frequency domain resources of the sub-band and / or guard band based on the reference SCS.

[0141] It should be noted that when the terminal determines the reference SCS according to predefined rules, the network device can also determine the reference SCS according to predefined rules. When the terminal determines the reference SCS according to indication information, the network device can independently determine the reference SCS and indicate the determined SCS to the terminal through indication information.

[0142] In some embodiments, the terminal may also determine frequency domain resources corresponding to at least one of the following based on the reference SCS:

[0143] Frequency domain offset of sub-bands and / or guard bands relative to a reference point;

[0144] Frequency domain range of sub-bands and / or guard bands.

[0145] It should be noted that network devices can also determine the frequency domain resources corresponding to the frequency domain offset of the sub-band and / or guard band relative to the reference point based on the reference SCS, and determine the frequency domain range of the sub-band and / or guard band based on the reference SCS.

[0146] In some embodiments, the terminal may determine the frequency domain offset of the starting frequency domain position of the sub-band and / or guard band relative to the reference point based on indication information, wherein the frequency domain offset can be characterized by the number of resource blocks (RBs).

[0147] For example, a resource block may include a Physical Resource Block (PRB), a Common Resource Block (CRB), or a Virtual Resource Block (PRB), and this disclosure is not limited thereto.

[0148] The frequency domain offset can also be characterized based on frequency domain resources, such as Hz, MHz, GHz, GSCN (Global Synchronization Channel Number), ARFCN (Absolute Radio Frequency Channel Number), etc.

[0149] In some embodiments, the reference point is determined based on one of the following:

[0150] Point A;

[0151] The initial frequency domain position of the carrier (e.g., uplink carrier, downlink carrier);

[0152] The starting frequency domain position of BWP (e.g., initial uplink BWP, initial downlink BWP).

[0153] The Common Resource Block (CRB) index, for example, CRB#0, or the center frequency point location corresponding to CRB#0.

[0154] For example, if the reference point is determined based on Point A, the frequency domain offset can be the offset of the number of PRBs in the frequency domain (using the subcarrier spacing defined for that carrier) between Point A (the lowest subcarrier of common RB 0) and the lowest available subcarrier on that carrier.

[0155] In some embodiments, the terminal can determine the RB index corresponding to the starting frequency domain position of the sub-band and / or guard band based on predefined rules or indication information, such as the CRB index. When the RB index is indicated by indication information, it can be indicated directly, or it can be indicated using a bitmap among multiple RB indices. For example, among the four RBs RB#1 to RB#4, a bitmap indicating 0100 can be used, allowing the terminal to determine and indicate RB#2.

[0156] In some embodiments, the terminal may determine the frequency domain range of the sub-band and / or guard band based on indication information, such as the number of RBs covered (or sustained) by the sub-band and / or guard band.

[0157] In some embodiments, the frequency domain offset is determined based on one of the following:

[0158] The number of RBs specified by the predefined rules;

[0159] The number of RBs indicated by the instruction information;

[0160] The number of RBs determined based on the Resource Indicator Value (RIV).

[0161] It should be noted that the RIV can be predefined, such as that agreed upon by the protocol, or it can be indicated by the network device; this disclosure does not limit this.

[0162] In some embodiments, the frequency domain range is determined based on one of the following:

[0163] The number of RBs specified by the predefined rules;

[0164] The number of RBs indicated by the instruction information;

[0165] The number of RBs determined based on RIV.

[0166] It should be noted that the RIV can be predefined, such as that agreed upon by the protocol, or it can be indicated by the network device; this disclosure does not limit this.

[0167] Among them, the reference SCS can be used to determine the frequency domain resources corresponding to RB, and then the frequency domain resources corresponding to the above frequency domain range can be determined.

[0168] In some embodiments, the reference SCS can be used to determine the frequency domain resources corresponding to the RB, thereby converting the frequency domain offset (e.g., the corresponding number of RBs) and frequency domain range (e.g., the corresponding number of RBs) into the actual frequency, and thus determining the corresponding frequency domain range. Depending on the frequency used, the reference SCS value can be as follows:

[0169] In the FR1 band, the reference SCS is 15kHz or 30kHz;

[0170] In the FR2-1 band, the reference SCS is 60kHz or 120kHz;

[0171] In the FR2-2 band, the reference SCS is 120kHz, 480kHz, or 960kHz.

[0172] In some embodiments, when the number of resource blocks determined based on the RIV in the frequency domain range is determined, the terminal can determine the starting frequency domain location of the sub-band and / or guard band and the number of RBs covered based on the RIV indicated by the indication information, wherein the RIV is the number of RBs between the starting frequency domain location of the sub-band and / or guard band and the reference point. start And the number of RBs covered, L RBs Related.

[0173] For example, RIV and RB start and L RBs The following relationship can be satisfied: RIV=N size (L RBs -1)+RB start else RIV=N size (N size -L RBs +1)+(N size -1-RB start )

[0174] Where, N size The number of continuous RBs for the associated frequency domain range (e.g., the frequency domain range where sub-bands and / or guard bands are located), RB start L is the number of RBs separated by the subband and / or guard band relative to the associated BWP starting RB. RBs The number of continuous RBs for the UL subband.

[0175] When the frequency domain offset is obtained based on the number of RBs determined by RIV, the number of RBs determined by RIV can be RBs. start When the frequency domain range is obtained based on the number of RBs determined by RIV, the number of RBs determined by RIV can be L. RBs .

[0176] For example, taking sub-band frequency domain resources defined based on carriers as an example, RIV and RB start and L RBs The following relationship can be satisfied: else

[0177] in, The number of continuous RBs for the associated carrier carrier (e.g., the carrier containing the sub-band and / or guard band), RB start The number of RBs between the sub-band and / or guard band and the starting RB of the associated carrier. L RBs The number of continuous RBs for the UL subband.

[0178] For example, taking the sub-band frequency domain resources defined based on BWP as an example, RIV and RB start and L RBs The following relationship can be satisfied: else

[0179] in, The number of RBs that continuously occupy the associated bandwidth BWP (e.g., the BWP containing subbands and / or guard bands). start L is the number of RBs separated by the starting RB of the associated BWP, which is the sub-band or guard interval. RBs The number of continuous RBs for the UL subband.

[0180] In some embodiments, the predefined rules include one of the following:

[0181] SCS determination is based on the bandwidth portion of the BWP;

[0182] The reference SCS is determined based on the SCS list;

[0183] The reference SCS is determined based on a predefined SCS;

[0184] The reference SCS of the uplink subband and / or the reference SCS of the guard band are determined based on the reference SCS of the downlink subband.

[0185] The reference SCS for the downlink subband and / or the reference SCS for the guard band are determined based on the reference SCS for the uplink subband.

[0186] The reference SCS for the uplink subband and / or the reference SCS for the downlink subband are determined based on the reference SCS for the guard band.

[0187] In some embodiments, the reference SCS can be a predefined SCS, such as an SCS agreed upon by the protocol, or an SCS agreed upon in advance by the terminal and the network device.

[0188] For example, a predefined SCS can be a dedicated SCS for SBFD.

[0189] For example, SBFD-specific SCSs are not included in the traditional SCS list;

[0190] For example, for UL subband and / or DL ​​subband and / or GB, the predefined SCS as a reference SCS may be the same or different, and this disclosure does not limit this.

[0191] For example, the reference SCS for the frequency domain resources of the UL subband can be determined based on the UL SBFD-specific SCS or the DL SBFD-specific SCS.

[0192] For example, the reference SCS of the frequency domain resources of the DL subband can be determined based on the UL SBFD-specific SCS or the DL SBFD-specific SCS.

[0193] For example, the reference SCS for the frequency domain resources of GB can be determined based on the UL SBFD dedicated SCS or the DL SBFD dedicated SCS.

[0194] In some embodiments, the BWP includes at least one of the following:

[0195] Initial BWP;

[0196] An active BWP.

[0197] For example, the initial BWP is the BWP corresponding to BWP#0. The BWP can be configured based on system messages, such as SIB1, or based on RRC signaling, such as ServingCellConfigCommon or ServingCellConfig.

[0198] For example, the initial BWP is the uplink BWP corresponding to BWP#0, or the downlink BWP corresponding to BWP#0.

[0199] In some embodiments, the initial BWP includes at least one of the following:

[0200] Initial uplink BWP;

[0201] Initial downlink BWP.

[0202] For example, the reference SCS of the uplink subband frequency domain resources is equal to the SCS of the initial uplink BWP;

[0203] For example, the reference SCS of the uplink subband frequency domain resources is equal to the SCS of the initial downlink BWP;

[0204] For example, the reference SCS of the downlink subband frequency domain resources is equal to the SCS of the initial downlink BWP;

[0205] For example, the reference SCS of the downlink subband frequency domain resources is equal to the SCS of the initial uplink BWP;

[0206] For example, the reference SCS for protecting the frequency domain resources of the protection band is equal to the SCS of the initial uplink BWP;

[0207] For example, the reference SCS for protecting the frequency domain resources of the protection band is equal to the SCS of the initial downlink BWP.

[0208] In some embodiments, the activated BWP includes at least one of the following:

[0209] Activated uplink BWP;

[0210] Activated downlink BWP.

[0211] For example, the reference SCS of the uplink subband frequency domain resource is equal to the SCS of the active uplink BWP;

[0212] For example, the reference SCS of the uplink subband frequency domain resource is equal to the SCS of the activated downlink BWP;

[0213] For example, the reference SCS of the downlink subband frequency domain resource is equal to the SCS of the active uplink BWP;

[0214] For example, the reference SCS of the downlink subband frequency domain resource is equal to the SCS of the active downlink BWP;

[0215] For example, the reference SCS for the protected frequency band resources is equal to the SCS of the active uplink BWP;

[0216] For example, the reference SCS for protecting frequency band resources is equal to the SCS of the active downlink BWP.

[0217] In some embodiments, the SCS is determined based on the bandwidth portion of the BWP, wherein the BWP may include a first active BWP, for example, the first active BWP may be configured based on RRC signaling, e.g., based on firstActiveDownlinkBWP-Id or firstActiveUplinkBWP-Id.

[0218] For example, the first active BWP can be either a first active UL BWP or a first active DL BWP.

[0219] For example, the reference SCS of the uplink subband frequency domain resources is equal to the SCS of the first active UL BWP;

[0220] For example, the reference SCS of the uplink subband frequency domain resources is equal to the SCS of the first active DL BWP;

[0221] For example, the reference SCS of the downlink subband frequency domain resources is equal to the SCS of the first active DL BWP;

[0222] For example, the reference SCS of the downlink subband frequency domain resources is equal to the SCS of the first active UL BWP;

[0223] For example, the reference SCS for the protected frequency band resources is equal to the SCS of the first active DL BWP;

[0224] For example, the reference SCS for protecting the frequency domain resources of the protection band is equal to the SCS of the first active UL BWP.

[0225] In some embodiments, the SCS is determined based on the bandwidth portion BWP, wherein the BWP may include a predefined (default) BWP, for example, the predefined BWP may be configured based on RRC signaling, e.g., based on defaultDownlinkBWP-Id or defaultUplinkBWP-Id.

[0226] For example, a predefined BWP can be a predefined UL BWP or a predefined DL BWP.

[0227] For example, the reference SCS of the uplink subband frequency domain resource is equal to the SCS of the predefined UL BWP;

[0228] For example, the reference SCS of the uplink subband frequency domain resource is equal to the SCS of the predefined DL BWP;

[0229] For example, the reference SCS of the downlink subband frequency domain resource is equal to the SCS of the predefined DL BWP;

[0230] For example, the reference SCS of the downlink subband frequency domain resource is equal to the SCS of the predefined UL BWP;

[0231] For example, the reference SCS for protecting frequency band resources is equal to the predefined SCS of the DL BWP;

[0232] For example, the reference SCS for protecting frequency band resources is equal to the SCS of the predefined UL BWP.

[0233] In some embodiments, the reference SCS is determined based on an SCS list and includes at least one of the following:

[0234] The reference SCS is the largest SCS in the SCS list;

[0235] The reference SCS is the smallest SCS in the SCS list;

[0236] The reference SCS is the first SCS in the SCS list;

[0237] The reference SCS is the last SCS in the SCS list;

[0238] The reference SCS is the SCS corresponding to the smallest index in the SCS list;

[0239] The reference SCS is the SCS corresponding to the largest index in the SCS list.

[0240] In some embodiments, the SCS list includes at least one of the following: a conventional SCS list; an SBFD-specific SCS list.

[0241] In some embodiments, the conventional SCS list can be an SCS list configured by the network device for a carrier (e.g., UL carrier, DL carrier), an SCS list configured for a BWP (e.g., UL BWP, DL BWP), or a directly configured SCS list. The SCS list configured for a carrier can, for example, include a list of SCSs determined by the SCS-SpecificCarrierlist or uplinkChannelBW-PerSCS-List configuration for the UL carrier, or a list of SCSs determined by the SCS-SpecificCarrierlist or downlinkChannelBW-PerSCS-List configuration for the DL carrier; this disclosure does not limit this.

[0242] In some embodiments, the traditional SCS list may further include a traditional UL SCS list and / or a traditional DL SCS list. The traditional UL SCS list can be an SCS list configured by the network device for a UL carrier, or an SCS list configured for a UL BWP; the traditional DL SCS list can be an SCS list configured by the network device for a DL carrier, or an SCS list configured for a DL BWP, or a SCS list directly based on UL or DL ​​configuration. For example, the traditional UL SCS list can be a list of SCSs configured based on a UL carrier-specific carrier list or an uplinkChannelBW-PerSCS-List, or it can be a list of SCSs configured based on a DL carrier-specific carrier list or a downlinkChannelBW-PerSCS-List; the traditional DL SCS list can be a list of SCSs configured based on a DL carrier-specific carrier list or an uplinkChannelBW-PerSCS-List, or it can be a list of SCSs configured based on a DL carrier-specific carrier list or a downlinkChannelBW-PerSCS-List.

[0243] In some embodiments, where the SCS list includes a traditional SCS list:

[0244] For example, the reference SCS for uplink subband frequency domain resources is an SCS within the traditional UL SCS list;

[0245] For example, the reference SCS for uplink subband frequency domain resources is an SCS within the traditional DL SCS list;

[0246] For example, the reference SCS for downlink subband frequency domain resources is an SCS within the traditional UL SCS list;

[0247] For example, the reference SCS for downlink subband frequency domain resources is an SCS within the traditional DL SCS list;

[0248] For example, the reference SCS for protecting frequency band resources is an SCS within the traditional UL SCS list;

[0249] For example, the reference SCS for protecting frequency band and frequency domain resources is an SCS within the traditional DL SCS list.

[0250] Taking an SCS list containing SCSs {30kHz, 60kHz, 15kHz} as an example, the reference SCS for frequency domain resources based on the above predefined rules can be:

[0251] For example, the reference SCS is the smallest SCS in the traditional SCS list, and the reference SCS = 15kHz;

[0252] For example, the reference SCS is the largest SCS in the traditional SCS list, and the reference SCS = 60kHz;

[0253] For example, the reference SCS is the SCS corresponding to the lowest index in the traditional SCS list, and the reference SCS = 30kHz;

[0254] For example, the reference SCS is the SCS corresponding to the highest index in the traditional SCS list, and the reference SCS = 15kHz.

[0255] In some embodiments, where the SCS list includes an SBFD-specific SCS list:

[0256] For example, the reference SCS is the largest SCS within the SBFD-specific SCS list;

[0257] For example, the reference SCS is the smallest SCS within the SBFD-specific SCS list;

[0258] For example, the reference SCS is the SCS corresponding to the smallest index in the SBFD-specific SCS list;

[0259] For example, the reference SCS is the SCS corresponding to the largest index in the SBFD-specific SCS list.

[0260] For example, the SBFD-specific SCS list can be the SBFD-specific UL SCS list, the SBFD-specific DL SCS list, or the SBFD-specific GB SCS list;

[0261] For example, the SBFD-specific SCS list can be configured uniformly (also known as a common) based on UL and / or DL ​​and / or GB.

[0262] For example, the SBFD-specific SCS list is configured independently of the traditional SCS list. For instance, the SBFD-specific SCS list is based on system information or RRC signaling configuration.

[0263] In some embodiments, under the condition that the SBFD-specific UL SCS list, the SBFD-specific DL SCS list, and the SBFD-specific GB SCS list (if configured) are respectively configured:

[0264] For example, the SBFD-specific SCS list can be either the SBFD-specific UL SCS list or the SBFD-specific DL SCS list.

[0265] For example, the reference SCS for uplink subband frequency domain resources is an SCS within the SBFD-specific UL SCS list.

[0266] For example, the reference SCS for uplink subband frequency domain resources is an SCS within the SBFD dedicated DL SCS list.

[0267] For example, the reference SCS for downlink subband frequency domain resources is an SCS within the SBFD-specific UL SCS list.

[0268] For example, the reference SCS for downlink subband frequency domain resources is an SCS within the SBFD dedicated DL SCS list.

[0269] For example, the reference SCS for protecting frequency band and frequency domain resources is an SCS within the SBFD-specific UL SCS list.

[0270] For example, the reference SCS for protecting frequency band and frequency domain resources is an SCS within the SBFD dedicated DL SCS list.

[0271] Taking an SCS list containing SCSs {30kHz, 60kHz, 15kHz} as an example, based on the above predefined rules, the reference SCS for frequency domain resources can be:

[0272] For example, the reference SCS is the smallest SCS in the SBFD-specific SCS list, and the reference SCS = 15kHz;

[0273] For example, the reference SCS is the largest SCS in the SBFD-specific SCS list, and the reference SCS = 60kHz;

[0274] For example, the reference SCS is the SCS corresponding to the lowest index in the SBFD-specific SCS list, and the reference SCS = 30kHz;

[0275] For example, the reference SCS is the SCS corresponding to the highest index in the SBFD-specific SCS list, and the reference SCS = 15kHz.

[0276] In some embodiments, the indication information is used to indicate an SCS as a reference SCS in the SCS list, or the indication information is used to indicate an SCS as the reference SCS.

[0277] The instruction information sent by the network device can directly instruct (or configure) a SCS as a reference SCS to the terminal, or it can instruct an SCS as a reference SCS from the SCS list.

[0278] For example, the SCS that the instruction information indicates to the terminal as a reference SCS can be a dedicated SCS for SBFD;

[0279] For example, SBFD-specific SCSs are not included in the traditional SCS list;

[0280] For example, for UL subband and / or DL ​​subband and / or GB, the SCS indicated by the indication information as a reference SCS may be the same or different, and this disclosure does not limit this.

[0281] For example, the reference SCS for the frequency domain resources of the UL subband can be determined based on the UL SBFD-specific SCS or the DL SBFD-specific SCS.

[0282] For example, the reference SCS of the frequency domain resources of the DL subband can be determined based on the UL SBFD-specific SCS or the DL SBFD-specific SCS.

[0283] For example, the reference SCS for the frequency domain resources of GB can be determined based on the UL SBFD dedicated SCS or the DL SBFD dedicated SCS.

[0284] In some embodiments, the list of SCSs to which the indication information refers includes at least one of the following: a list of conventional SCSs; a list of SCSs specific to SBFD.

[0285] In some embodiments, the traditional SCS list includes at least one of the following: a traditional uplink SCS list; a traditional downlink SCS list.

[0286] For example, the reference SCS for uplink subband frequency domain resources is indicated in the conventional UL SCS list;

[0287] For example, the reference SCS for uplink subband frequency domain resources is indicated in the traditional DL SCS list;

[0288] For example, the reference SCS for downlink subband frequency domain resources is indicated in the conventional UL SCS list;

[0289] For example, the reference SCS for downlink subband frequency domain resources is indicated in the traditional DL SCS list;

[0290] For example, the reference SCS for protecting frequency band resources is indicated in the traditional UL SCS list;

[0291] For example, the reference SCS for protecting frequency band resources is indicated in the conventional DL SCS list.

[0292] Taking an SCS list containing SCSs of {15kHz, 30kHz, 60kHz} as an example, if the indication information indicates that SCS index = 0, the terminal determines that the reference SCS is 15kHz.

[0293] For example, if the SCS list contains SCSs of {15kHz, 30kHz, 60kHz}, and the indication information indicates that the SCS index is 010 via bitmap, the terminal can determine that the reference SCS is 30kHz.

[0294] In some embodiments, the SBFD-specific SCS list includes at least one of the following:

[0295] SBFD dedicated uplink SCS list;

[0296] List of downlink SCS for SBFD.

[0297] For example, the SBFD dedicated uplink SCS list can be the SBFD dedicated SCS list configured by the network device for the UL carrier, or the SBFD dedicated SCS list configured for the UL BWP; the SBFD dedicated downlink SCS list can be the SBFD dedicated SCS list configured by the network device for the DL carrier, or the SBFD dedicated SCS list configured for the DL BWP.

[0298] For example, a network device can indicate an SCS index in the SBFD dedicated SCS list through indication information. Based on the indication information, the terminal can determine that the SCS corresponding to the SCS index in the SBFD dedicated SCS list is the reference SCS indicated by the network device.

[0299] For example, the SBFD-specific SCS list can be configured uniformly for UL subband and / or DL ​​subband and / or GB, or it can be configured separately for UL subband and / or DL ​​subband and / or GB.

[0300] Among them, the dedicated SCS list configured for UL subband can be called the SBFD dedicated UL SCS list, the dedicated SCS list configured for DL ​​subband can be called the SBFD dedicated DL SCS list, and the dedicated SCS list configured for GB can be called the SBFD dedicated GB SCS list.

[0301] For example, the SBFD-specific SCS list can be configured independently of the traditional SCS list.

[0302] In some embodiments, under the condition that the SBFD-specific UL SCS list, SBFD-specific DL SCS list, and SBFD-specific GB SCS list (if configured) are respectively configured:

[0303] For example, the SBFD-specific SCS list can be either the SBFD-specific UL SCS list or the SBFD-specific DL SCS list.

[0304] For example, a traditional SCS list can be a UL SCS list specifically for SBFD, or a DL SCS list specifically for SBFD.

[0305] For example, the reference SCS for uplink subband frequency domain resources is indicated in the SBFD-specific UL SCS list;

[0306] For example, the reference SCS for uplink subband frequency domain resources is indicated in the SBFD dedicated DL SCS list;

[0307] For example, the reference SCS for downlink subband frequency domain resources is indicated in the SBFD-specific DL SCS list;

[0308] For example, the reference SCS for downlink subband frequency domain resources is indicated in the SBFD-specific UL SCS list;

[0309] For example, the reference SCS for protecting frequency band resources is indicated in the SBFD-specific UL SCS list;

[0310] For example, the reference SCS for protecting frequency band and frequency domain resources is indicated in the SBFD-specific DL SCS list.

[0311] Taking an SCS list containing SCSs of {15kHz, 30kHz, 60kHz} as an example, if the indication information indicates that SCS index = 0, the terminal determines that the reference SCS is 15kHz.

[0312] Taking an SCS list containing SCSs of {15kHz, 30kHz, 60kHz} as an example, if the indication information indicates that the SCS index is 010 through the bitmap, the terminal determines that the reference SCS is 30kHz.

[0313] It should be noted that the terminal can determine the reference SCS of the current subband and / or GB based on the reference SCS of other types of subband and / or GB.

[0314] In some embodiments, the terminal determines the reference SCS of the UL subband based on the manner described in any of the above embodiments; further, the terminal determines the SCS of the DL subband and / or GB based on the reference SCS of the UL subband, for example:

[0315] For example, the terminal determines that the DL subband reference SCS = the UL subband reference SCS;

[0316] For example, the terminal determines that the GB reference SCS is the same as the UL subband reference SCS.

[0317] In some embodiments, the terminal determines the reference SCS of the DL subband based on the method described in any of the above embodiments; further, the terminal determines the SCS of the UL subband and / or GB based on the reference SCS of the DL subband, and an exemplary method may be as follows:

[0318] For example, the terminal determines that the UL subband reference SCS = the DL subband reference SCS;

[0319] For example, the terminal determines that the GB reference SCS is equal to the DL subband reference SCS.

[0320] In some embodiments, for the three reference SCSs—the reference SCS of the UL subband, the reference SCS of the DL subband, and the reference SCS of the GB—when the terminal is based on any two of the reference SCSs in any of the above embodiments, the third reference SCS can be determined based on either of the two already determined reference SCSs.

[0321] For example, the terminal determines the reference SCS of the UL subband and the reference SCS of the DL subband based on the method in any of the above embodiments. Further, the terminal can determine that the reference SCS of the GB is equal to the reference SCS of the DL subband, or the reference SCS of the GB is equal to the reference SCS of the UL subband.

[0322] For example, the terminal determines the reference SCS of the UL subband and the reference SCS of the GB based on the method in any of the above embodiments. Further, the terminal can determine that the reference SCS of the DL subband is equal to the reference SCS of the UL subband, or the reference SCS of the DL subband is equal to the reference SCS of the GB.

[0323] For example, the terminal determines the reference SCS of the DL subband and the reference SCS of the GB based on the method in any of the above embodiments. Further, the terminal can determine that the reference SCS of the UL subband is equal to the reference SCS of the DL subband, or the reference SCS of the UL subband is equal to the reference SCS of the GB.

[0324] In some embodiments, the terminal determines the reference SCS of GB based on the method described in any of the above embodiments; further, the terminal determines the SCS of DL subband and / or UL subband based on the reference SCS of GB, and an exemplary method may be as follows:

[0325] For example, the terminal determines the reference SCS of DL subband = GB;

[0326] For example, the terminal determines the reference SCS of UL subband reference SCS = GB.

[0327] In some embodiments, the terminal may determine the reference SCS of the UL subband, the reference SCS of the UL subband, and the reference SCS of the GB based on the manner described in any of the above embodiments. For example:

[0328] The terminal determines the reference SCS for UL subband frequency domain resources based on predefined rules, and determines the reference SCS for DL ​​subband frequency domain resources based on indication information.

[0329] The terminal determines the reference SCS for UL subband frequency domain resources based on the indication information, and determines the reference SCS for DL ​​subband frequency domain resources based on predefined rules.

[0330] The terminal determines the reference SCS for UL subband frequency domain resources based on predefined rules, and determines the reference SCS for GB frequency domain resources based on indication information.

[0331] The terminal determines the reference SCS for UL subband frequency domain resources based on the indication information, and determines the reference SCS for GB frequency domain resources based on predefined rules.

[0332] According to embodiments of this disclosure, the terminal can determine the reference SCS of sub-band and / or GB frequency domain resources in the SBFD scenario based on indication information or predefined rules, which can achieve flexible indication of the corresponding frequency domain resources while minimizing the impact of standards.

[0333] The communication method involved in the embodiments of this disclosure may include at least one of steps S201 to S202. For example, step S201 may be implemented as a standalone embodiment, step S202 may be implemented as a standalone embodiment, and step S201+S202 may be implemented as a standalone embodiment, but is not limited thereto.

[0334] In some embodiments, steps S201 and S202 may be performed in an alternate order or simultaneously.

[0335] In some embodiments, step S201 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0336] In some embodiments, step S202 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0337] In some embodiments, other optional implementations described before or after the specification corresponding to FIG2 may be referred to.

[0338] Firstly, embodiments of this disclosure provide a subcarrier spacing determination method. Figure 3 is a schematic flowchart illustrating a subcarrier spacing determination method according to an embodiment of this disclosure. The subcarrier spacing determination method shown in this embodiment can be executed by a terminal.

[0339] As shown in Figure 3, the subcarrier spacing determination method may include the following steps:

[0340] In step S301, the reference subcarrier spacing SCS is determined according to the first information, wherein the reference SCS includes at least one of the following: the reference SCS of the sub-band corresponding to the sub-band full-duplex SBFD time domain unit; the reference SCS of the guard band in the SBFD time domain unit.

[0341] It should be noted that the embodiment shown in Figure 3 can be implemented independently or in combination with at least one other embodiment in this disclosure. The specific choice can be made as needed, and this disclosure does not limit the scope.

[0342] In some embodiments, the first information includes at least one of the following: predefined rules; instruction information.

[0343] In some embodiments, the predefined rules include one of the following: the reference SCS is determined based on the SCS of the bandwidth portion (BWP); the reference SCS is determined based on the SCS list; the reference SCS is determined based on the predefined SCS; the reference SCS of the uplink subband and / or the reference SCS of the guard band are determined based on the reference SCS of the downlink subband; the reference SCS of the downlink subband and / or the reference SCS of the guard band are determined based on the reference SCS of the uplink subband; the reference SCS of the uplink subband and / or the reference SCS of the downlink subband are determined based on the reference SCS of the guard band.

[0344] In some embodiments, a BWP includes at least one of the following: an initial BWP; an activated BWP.

[0345] In some embodiments, the initial BWP includes at least one of the following: an initial uplink BWP; an initial downlink BWP.

[0346] In some embodiments, an activated BWP includes at least one of the following: an activated uplink BWP; an activated downlink BWP.

[0347] In some embodiments, the reference SCS is determined based on a list of SCSs, including at least one of the following: the reference SCS is the largest SCS in the list of SCSs; the reference SCS is the smallest SCS in the list of SCSs; the reference SCS is the first SCS in the list of SCSs; or the reference SCS is the last SCS in the list of SCSs.

[0348] In some embodiments, the indication information is used to indicate an SCS as a reference SCS in the SCS list; or, the indication information is used to indicate an SCS as a reference SCS.

[0349] In some embodiments, the SCS list includes at least one of the following: a conventional SCS list; an SBFD-specific SCS list.

[0350] In some embodiments, the traditional SCS list includes at least one of the following: a traditional uplink SCS list; a traditional downlink SCS list.

[0351] In some embodiments, the SBFD-specific SCS list includes at least one of the following: the SBFD-specific uplink SCS list; and the SBFD-specific downlink SCS list.

[0352] In some embodiments, the method further includes: determining frequency domain resources corresponding to at least one of the following based on a reference SCS: frequency domain offset of the sub-band and / or guard band relative to a reference point; frequency domain range of the sub-band and / or guard band.

[0353] In some embodiments, the reference point is determined based on one of the following: Point A; the starting position of the carrier; the starting position of the BWP; or the Common Resource Block (CRB) index.

[0354] In some embodiments, the frequency domain offset is determined based on one of the following: the number of resource blocks specified by predefined rules; the number of resource blocks indicated by indication information; or the number of resource blocks determined based on the resource indication value (RIV).

[0355] In some embodiments, the frequency domain range is determined based on one of the following: the number of resource blocks specified by predefined rules; the number of resource blocks indicated by indication information; or the number of resource blocks determined based on RIV.

[0356] The optional implementations of the first aspect and the optional embodiments of the first aspect can be found in the optional implementations of the embodiments shown in FIG2 and other related parts of the embodiments involved in FIG2, which will not be repeated here.

[0357] Secondly, embodiments of this disclosure provide a subcarrier spacing determination method. Figure 4 is a schematic flowchart illustrating a subcarrier spacing determination method according to an embodiment of this disclosure. The subcarrier spacing determination method shown in this embodiment can be executed by a network device.

[0358] As shown in Figure 4, the subcarrier spacing determination method may include the following steps:

[0359] In step S401, the reference subcarrier spacing SCS is determined according to a predefined rule, and / or, indication information is sent to the terminal. The indication information is used to indicate the reference subcarrier spacing SCS to the terminal. The reference SCS includes at least one of the following: the reference SCS of the sub-band corresponding to the sub-band full-duplex SBFD time domain unit; the reference SCS of the guard band in the SBFD time domain unit.

[0360] It should be noted that the embodiment shown in Figure 4 can be implemented independently or in combination with at least one other embodiment in this disclosure. The specific choice can be made as needed, and this disclosure does not limit the scope of the embodiment.

[0361] In some embodiments, the second information includes at least one of the following: predefined rules; network device implementation; wherein, when the second information includes network device implementation, the method further includes: sending indication information to the terminal, the indication information being used to indicate the reference SCS.

[0362] In some embodiments, the predefined rules include one of the following: the reference SCS is determined based on the SCS of the bandwidth portion (BWP); the reference SCS is determined based on the SCS list; the reference SCS is determined based on the predefined SCS; the reference SCS of the uplink subband and / or the reference SCS of the guard band are determined based on the reference SCS of the downlink subband; the reference SCS of the downlink subband and / or the reference SCS of the guard band are determined based on the reference SCS of the uplink subband; the reference SCS of the uplink subband and / or the reference SCS of the downlink subband are determined based on the reference SCS of the guard band.

[0363] In some embodiments, a BWP includes at least one of the following: an initial BWP; an activated BWP.

[0364] In some embodiments, the initial BWP includes at least one of the following: an initial uplink BWP; an initial downlink BWP.

[0365] In some embodiments, an activated BWP includes at least one of the following: an activated uplink BWP; an activated downlink BWP.

[0366] In some embodiments, the reference SCS is determined based on a list of SCSs, including at least one of the following: the reference SCS is the largest SCS in the list of SCSs; the reference SCS is the smallest SCS in the list of SCSs; the reference SCS is the first SCS in the list of SCSs; or the reference SCS is the last SCS in the list of SCSs.

[0367] In some embodiments, the indication information is used to indicate an SCS as a reference SCS in the SCS list; or, the indication information is used to indicate an SCS as a reference SCS.

[0368] In some embodiments, the SCS list includes at least one of the following: a conventional SCS list; an SBFD-specific SCS list.

[0369] In some embodiments, the traditional SCS list includes at least one of the following: a traditional uplink SCS list; a traditional downlink SCS list.

[0370] In some embodiments, the SBFD-specific SCS list includes at least one of the following: the SBFD-specific uplink SCS list; and the SBFD-specific downlink SCS list.

[0371] In some embodiments, the method further includes: determining frequency domain resources corresponding to at least one of the following based on a reference SCS: frequency domain offset of the sub-band and / or guard band relative to a reference point; frequency domain range of the sub-band and / or guard band.

[0372] In some embodiments, the reference point is determined based on one of the following: Point A; the starting position of the carrier; the starting position of the BWP; or the Common Resource Block (CRB) index.

[0373] In some embodiments, the frequency domain offset is determined based on one of the following: the number of resource blocks specified by predefined rules; the number of resource blocks indicated by indication information; or the number of resource blocks determined based on the resource indication value (RIV).

[0374] In some embodiments, the frequency domain range is determined based on one of the following: the number of resource blocks specified by predefined rules; the number of resource blocks indicated by indication information; or the number of resource blocks determined based on RIV.

[0375] The optional implementations of the second aspect and the optional embodiments of the second aspect can be found in the optional implementations of the embodiments shown in FIG2 and other related parts of the embodiments involved in FIG2, which will not be repeated here.

[0376] In some embodiments, the terminal in this disclosure may include Rel-18 and later versions of the terminal, and the terminal is a terminal that supports SBFD features.

[0377] Taking the SBFD time domain unit as an example, where the subband within the SBFD time domain unit includes the uplink subband (UL subband), the time domain unit includes symbols. For instance, the time domain unit includes symbols, and the terminal, based on the base station configuration, transmits uplink information on DL symbols or flexible symbols, and receives downlink information on frequency domain resources outside the UL subband (e.g., referred to as the DL subband). The UL subband is configured based on signaling explicitness, and a guard band (GB) can be set between the UL subband and the DL subband to isolate them.

[0378] The primary objective of the embodiments disclosed herein is to determine the reference SCS for the frequency domain resources corresponding to the subband and / or GB in the SBFD.

[0379] In some embodiments, the terminal configures the uplink carrier list (UL carrier list) and / or downlink carrier list (DL carrier list) based on system information or RRC signaling, wherein the carrier list can be configured uniformly or separately based on different SCS, and this disclosure does not limit this.

[0380] For example, the DL carrier list can be determined based on a subcarrier spacing-specific carrier list (SCS-SpecificCarrierlist) or a downlink channel bandwidth list for each subcarrier spacing (downlinkChannelBW-PerSCS-List). The SCS-SpecificCarrierlist or downlinkChannelBW-PerSCS-List can contain one or more specific carrier subcarrier spacings (SCS-SpecificCarriers), where the SCS-SpecificCarrier includes the configuration of the SCS and the corresponding carrier. For details, please refer to relevant technologies; further elaboration is not provided here.

[0381] For example, the UL carrier list can be determined based on a subcarrier spacing-specific carrier list (SCS-SpecificCarrierlist) or an uplink channel bandwidth list for each subcarrier spacing (uplinkChannelBW-PerSCS-List). The SCS-SpecificCarrierlist or uplinkChannelBW-PerSCS-List can contain one or more specific carrier subcarrier spacings (SCS-SpecificCarriers). The SCS-SpecificCarrier includes the configuration of the SCS and the corresponding carrier; details can be found in relevant technical documents and will not be elaborated upon here.

[0382] In some embodiments, the SCS list involved in the present disclosure can be a list of SCSs configured and determined based on the UL carrier's SCS-SpecificCarrierlist or uplinkChannelBW-PerSCS-List, or a list of SCSs configured and determined based on the DL carrier's SCS-SpecificCarrierlist or downlinkChannelBW-PerSCS-List. The present disclosure does not limit this.

[0383] In some embodiments, the conventional UL SCS list involved in the present disclosure can be a list of SCSs configured based on the UL carrier's SCS-SpecificCarrierlist or uplinkChannelBW-PerSCS-List, or a list of SCSs configured based on the DL carrier's SCS-SpecificCarrierlist or downlinkChannelBW-PerSCS-List. The present disclosure does not limit this.

[0384] In some embodiments, the conventional DL SCS list involved in the present disclosure can be a list of SCSs configured based on the DL carrier's SCS-SpecificCarrierlist or uplinkChannelBW-PerSCS-List, or a list of SCSs configured based on the DL carrier's SCS-SpecificCarrierlist or downlinkChannelBW-PerSCS-List. The present invention does not impose any limitations.

[0385] In some embodiments, the terminal can determine the frequency domain resources corresponding to the subband and / or GB in the corresponding SBFD time domain unit based on the determined reference SCS. The following embodiments mainly take the subband including the uplink subband (UL subband) as an example to illustrate the technical solution of this disclosure.

[0386] In some embodiments, the terminal can determine the frequency domain offset of the UL subband starting frequency domain position relative to the reference point based on the indication information, wherein the frequency domain offset can be characterized by the number of resource blocks (RBs).

[0387] For example, a resource block may include a Physical Resource Block (PRB) or a Common Resource Block (CRB), and this disclosure is not limited thereto.

[0388] For example, a reference point is determined based on at least one of the following:

[0389] Point A;

[0390] The starting frequency domain location of the UL carrier or DL ​​carrier;

[0391] The starting frequency domain position of the initial DL carrier or initial UL carrier.

[0392] In some embodiments, the terminal may determine the CRB index corresponding to the starting frequency domain position of the UL subband based on the indication information.

[0393] In some embodiments, the terminal may determine the frequency domain range of the UL subband based on indication information, such as the number of RBs covered (or continuously) by the UL subband.

[0394] In some embodiments, the terminal determines the starting frequency domain location and the number of redundancies (RBs) covered by the UL subband based on the Resource Indicator Value (RIV) indicated by the indication information. The RIV is the number of RBs between the starting frequency domain location of the UL subband and the reference point. start And the number of RBs covered, L RBs Related.

[0395] For example, this embodiment uses the UL subband as an example to illustrate the relevant scheme. The corresponding DL subband and protection interval also follow a similar scheme, which will not be elaborated upon in this invention.

[0396] For example, RIV and RB start and L RBs The following relationship can be satisfied: else

[0397] in, The number of continuous RBs for the associated carrier carrier (e.g., the carrier containing the sub-band and / or guard band), RB start The number of RBs between the UL subband and the starting RB of the associated carrier. RBs The number of continuous RBs for the UL subband.

[0398] For example, the SCS of the associated carrier mentioned above is the same as the SCS of the UL subband.

[0399] The following examples illustrate, from the perspective of the terminal, a reference SCS for determining the frequency domain resources corresponding to subband and / or GB.

[0400] Example 1:

[0401] The terminal determines the reference SCS of the UL subband frequency domain resources, and / or the reference SCS of the DL subband frequency domain resources, and / or the reference SCS of the GB frequency domain resources based on predefined rules.

[0402] Example 1-1:

[0403] The terminal determines the reference SCS of the UL subband frequency domain resources, and / or the reference SCS of the DL subband frequency domain resources, and / or the reference SCS of the GB frequency domain resources based on the SCS of the reference BWP.

[0404] Example 1: Referencing BWP as initial BWP:

[0405] For example, initial BWP is the BWP corresponding to BWP#0. BWP can be configured based on system messages, such as SIB1, or based on RRC signaling, such as ServingCellConfigCommon or ServingCellConfig.

[0406] For example, an initial BWP can be an initial UL BWP or an initial DL BWP.

[0407] For example, the reference SCS of UL subband frequency domain resources is equal to the SCS corresponding to the initial UL BWP;

[0408] For example, the reference SCS of the UL subband frequency domain resource is equal to the SCS corresponding to the initial DL BWP;

[0409] For example, the reference SCS of the DL subband frequency domain resource is equal to the SCS corresponding to the initial DL BWP;

[0410] For example, the reference SCS of the DL subband frequency domain resource is equal to the SCS corresponding to the initial UL BWP;

[0411] For example, the reference SCS of GB frequency domain resources is equal to the SCS corresponding to the initial DL BWP;

[0412] For example, the reference SCS for GB frequency domain resources is equal to the SCS corresponding to the initial UL BWP.

[0413] Example 2: Referencing an active BWP:

[0414] For example, an active BWP can be an active UL BWP or an active DL BWP.

[0415] For example, the reference SCS of UL subband frequency domain resources is equal to the SCS corresponding to the active UL BWP;

[0416] For example, the reference SCS of UL subband frequency domain resources is equal to the SCS corresponding to the active DL BWP;

[0417] For example, the reference SCS of the DL subband frequency domain resource is equal to the SCS corresponding to the active UL BWP;

[0418] For example, the reference SCS of the DL subband frequency domain resource is equal to the SCS corresponding to the active DL BWP;

[0419] For example, the reference SCS of GB frequency domain resources is equal to the SCS corresponding to the active UL BWP;

[0420] For example, the reference SCS of GB frequency domain resources is equal to the SCS corresponding to the active DL BWP.

[0421] When the active BWP corresponding to the terminal is a BWP other than the initial BWP, the active BWP can be activated based on RRC signaling, DCI and Timer, and the present invention does not limit this.

[0422] For example, the active BWP can be an active UL BWP or an active DL BWP.

[0423] For example, the reference SCS of UL subband frequency domain resources is equal to the SCS corresponding to the active UL BWP;

[0424] For example, the reference SCS of UL subband frequency domain resources is equal to the SCS corresponding to the active DL BWP;

[0425] For example, the reference SCS of the DL subband frequency domain resource is equal to the SCS corresponding to the active DL BWP;

[0426] For example, the reference SCS of the DL subband frequency domain resource is equal to the SCS corresponding to the active UL BWP;

[0427] For example, the reference SCS of GB frequency domain resources is equal to the SCS corresponding to the active DL BWP;

[0428] For example, the reference SCS for GB frequency domain resources is equal to the SCS corresponding to the active UL BWP.

[0429] Example 3: Referencing BWP as the first active BWP:

[0430] The first active BWP can be configured based on RRC signaling, e.g., based on firstActiveDownlinkBWP-Id or firstActiveUplinkBWP-Id.

[0431] For example, the first active BWP can be either a first active UL BWP or a first active DL BWP.

[0432] For example, the reference SCS of UL subband frequency domain resources is equal to the SCS corresponding to the first active UL BWP;

[0433] For example, the reference SCS of UL subband frequency domain resources is equal to the SCS corresponding to the first active DL BWP;

[0434] For example, the reference SCS of the DL subband frequency domain resource is equal to the SCS corresponding to the first active DL BWP;

[0435] For example, the reference SCS of the DL subband frequency domain resource is equal to the SCS corresponding to the first active UL BWP;

[0436] For example, the reference SCS of GB frequency domain resources is equal to the SCS corresponding to the first active DL BWP;

[0437] For example, the reference SCS for GB frequency domain resources is equal to the SCS corresponding to the first active UL BWP.

[0438] Example 4: Referencing a predefined (default) BWP:

[0439] Predefined BWPs can be configured based on RRC signaling, e.g., based on defaultDownlinkBWP-Id or defaultUplinkBWP-Id.

[0440] For example, a predefined BWP can be a predefined UL BWP or a predefined DL BWP.

[0441] For example, the reference SCS of UL subband frequency domain resources is equal to the predefined SCS corresponding to UL BWP;

[0442] For example, the reference SCS of UL subband frequency domain resources is equal to the predefined SCS corresponding to DL BWP;

[0443] For example, the reference SCS of the DL subband frequency domain resource is equal to the predefined SCS corresponding to the DL BWP;

[0444] For example, the reference SCS of the DL subband frequency domain resource is equal to the predefined SCS corresponding to the UL BWP;

[0445] For example, the reference SCS of GB frequency domain resources is equal to the predefined SCS corresponding to DL BWP;

[0446] For example, the reference SCS for GB frequency domain resources is equal to the predefined SCS corresponding to UL BWP.

[0447] Examples 1-2:

[0448] The terminal determines the reference SCS for UL subband frequency domain resources, and / or the reference SCS for DL ​​subband frequency domain resources, and / or the reference SCS for GB frequency domain resources based on predefined rules, wherein the reference SCS belongs to the SCS list.

[0449] Example 1: The terminal determines the reference SCS based on predefined rules. The reference SCS is an SCS within the traditional SCS list.

[0450] For example, the reference SCS is the largest SCS within the traditional SCS list;

[0451] For example, the reference SCS is the smallest SCS within the traditional SCS list;

[0452] For example, the reference SCS is the SCS corresponding to the smallest index in the traditional SCS list;

[0453] For example, the reference SCS is the SCS corresponding to the largest index in the traditional SCS list.

[0454] The traditional SCS list can be referred to in the previous example, and will not be repeated here.

[0455] For example, a traditional SCS list can be either a traditional UL SCS list or a traditional DL SCS list.

[0456] For example, the reference SCS for UL subband frequency domain resources is an SCS within the traditional UL SCS list;

[0457] For example, the reference SCS for UL subband frequency domain resources is an SCS within the traditional DL SCS list;

[0458] For example, the reference SCS for DL ​​subband frequency domain resources is an SCS within the traditional UL SCS list;

[0459] For example, the reference SCS for DL ​​subband frequency domain resources is an SCS within the traditional DL SCS list;

[0460] For example, the reference SCS for GB frequency domain resources is an SCS within the traditional UL SCS list;

[0461] For example, the reference SCS for GB frequency domain resources is an SCS within the traditional DL SCS list.

[0462] Taking an SCS list containing SCSs {30kHz, 60kHz, 15kHz} as an example, the reference SCS for frequency domain resources based on the above predefined rules can be:

[0463] For example, the reference SCS is the smallest SCS in the traditional SCS list, and the reference SCS = 15kHz;

[0464] For example, the reference SCS is the largest SCS in the traditional SCS list, and the reference SCS = 60kHz;

[0465] For example, the reference SCS is the SCS corresponding to the lowest index in the traditional SCS list, and the reference SCS = 30kHz;

[0466] For example, the reference SCS is the SCS corresponding to the highest index in the traditional SCS list, and the reference SCS = 15kHz.

[0467] Example 2: The terminal determines the reference SCS based on predefined rules, where the reference SCS is an SCS within the SBFD-specific SCS list.

[0468] For example, the reference SCS is the largest SCS within the SBFD-specific SCS list;

[0469] For example, the reference SCS is the smallest SCS within the SBFD-specific SCS list;

[0470] For example, the reference SCS is the SCS corresponding to the smallest index in the SBFD-specific SCS list;

[0471] For example, the reference SCS is the SCS corresponding to the largest index in the SBFD-specific SCS list.

[0472] For example, the SBFD-specific SCS list can be the SBFD-specific UL SCS list, the SBFD-specific DL SCS list, or the SBFD-specific GB SCS list;

[0473] For example, the SBFD-specific SCS list can be configured in a common manner based on UL and / or DL ​​and / or GB.

[0474] For example, the SBFD-specific SCS list is configured independently of the traditional SCS list. For instance, the SBFD-specific SCS list is based on system information or RRC signaling configuration.

[0475] In some embodiments, under the condition that the SBFD-specific UL SCS list, the SBFD-specific DL SCS list, and the SBFD-specific GB SCS list (if configured) are respectively configured:

[0476] For example, the SBFD-specific SCS list can be either the SBFD-specific UL SCS list or the SBFD-specific DL SCS list.

[0477] For example, the reference SCS for UL subband frequency domain resources is an SCS within the SBFD-specific UL SCS list.

[0478] For example, the reference SCS for UL subband frequency domain resources is an SCS within the SBFD dedicated DL SCS list.

[0479] For example, the reference SCS for DL ​​subband frequency domain resources is an SCS within the SBFD-specific UL SCS list.

[0480] For example, the reference SCS for DL ​​subband frequency domain resources is an SCS within the SBFD-specific DL SCS list.

[0481] For example, the reference SCS for GB frequency domain resources is an SCS within the SBFD-specific UL SCS list.

[0482] For example, the reference SCS for GB frequency domain resources is an SCS within the SBFD dedicated DL SCS list.

[0483] Taking an SCS list containing SCSs {30kHz, 60kHz, 15kHz} as an example, based on the above predefined rules, the reference SCS for frequency domain resources can be:

[0484] For example, the reference SCS is the smallest SCS in the SBFD-specific SCS list, and the reference SCS = 15kHz;

[0485] For example, the reference SCS is the largest SCS in the SBFD-specific SCS list, and the reference SCS = 60kHz;

[0486] For example, the reference SCS is the SCS corresponding to the lowest index in the SBFD-specific SCS list, and the reference SCS = 30kHz;

[0487] For example, the reference SCS is the SCS corresponding to the highest index in the SBFD-specific SCS list, and the reference SCS = 15kHz.

[0488] Example 3: The terminal determines the reference SCS based on predefined rules, where the reference SCS is a dedicated SCS for SBFD.

[0489] For example, SBFD-specific SCSs are not included in the traditional SCS list;

[0490] For example, the terminal can determine the reference SCS of the frequency domain resources of the UL subband, and / or the reference SCS of the frequency domain resources of the DL subband, and / or the reference SCS of the GB based on predefined rules.

[0491] For example, the terminal can also predefine rules to determine the common reference SCS. The common reference SCS can simultaneously serve as the reference SCS for the frequency domain resources of UL subband, and / or DL ​​subband, and / or GB. This invention does not limit this.

[0492] For example, the SBFD-specific SCS is determined based on uplink and downlink separately.

[0493] For example, the reference SCS for the frequency domain resources of the UL subband can be determined based on the UL SBFD-specific SCS or the DL SBFD-specific SCS.

[0494] For example, the reference SCS of the frequency domain resources of the DL subband can be determined based on the UL SBFD-specific SCS or the DL SBFD-specific SCS.

[0495] For example, the reference SCS for the frequency domain resources of GB can be determined based on the UL SBFD dedicated SCS or the DL SBFD dedicated SCS.

[0496] Example 2:

[0497] The terminal determines the reference SCS for UL subband frequency domain resources, and / or the reference SCS for DL ​​subband frequency domain resources, and / or the reference SCS for GB frequency domain resources based on the indication information.

[0498] Example 1: The terminal determines the reference SCS based on the SCS index indicated by the indication information. The SCS index corresponds one-to-one with the SCS in the traditional SCS list. For example, the SCS index can indicate the SCS in the traditional SCS list.

[0499] For example, a traditional SCS list can be either a traditional UL SCS list or a traditional DL SCS list.

[0500] For example, the reference SCS for UL subband frequency domain resources is based on the traditional UL SCS list indication;

[0501] For example, the reference SCS for UL subband frequency domain resources is based on the traditional DL SCS list indication;

[0502] For example, the reference SCS for DL ​​subband frequency domain resources is based on the traditional DL SCS list indication;

[0503] For example, the reference SCS for DL ​​subband frequency domain resources is based on the traditional UL SCS list indication;

[0504] For example, the reference SCS for GB frequency domain resources is based on the traditional UL SCS list indication;

[0505] For example, the reference SCS for GB frequency domain resources is based on the traditional DL SCS list indication.

[0506] Taking an SCS list containing SCSs of {15kHz, 30kHz, 60kHz} as an example, if the indication information indicates that SCS index = 0, the terminal determines that the reference SCS is 15kHz.

[0507] For example, if the SCS list contains SCSs of {15kHz, 30kHz, 60kHz}, and the indication information indicates that the SCS index is 010 via bitmap, the terminal can determine that the reference SCS is 30kHz.

[0508] For example, the instruction information can be configured based on system information, or it can be based on RRC, DCI, or MAC CE instructions, and the present invention does not limit this.

[0509] Example 2: The terminal determines the reference SCS based on the SCS index indicated by the indication information. The SCS index corresponds one-to-one with the SCS in the SBFD-specific SCS list. For example, the SCS index can indicate the SCS in the SBFD-specific SCS list.

[0510] For example, the SBFD-specific SCS list can be the SBFD-specific UL SCS list, the SBFD-specific DL SCS list, or the SBFD-specific GB SCS list;

[0511] For example, the SBFD-specific SCS list can be configured uniformly based on UL subband and / or DL ​​subband and / or GB.

[0512] For example, the SBFD-specific SCS list can be configured independently of the traditional SCS list. For instance, the SBFD-specific SCS list can be configured based on system information or RRC signaling.

[0513] In some embodiments, under the condition that the SBFD-specific UL SCS list, the SBFD-specific DL SCS list, and the SBFD-specific GB SCS list (if configured) are respectively configured:

[0514] For example, the SBFD-specific SCS list can be either the SBFD-specific UL SCS list or the SBFD-specific DL SCS list.

[0515] For example, a traditional SCS list can be a UL SCS list specifically for SBFD, or a DL SCS list specifically for SBFD.

[0516] For example, the reference SCS for UL subband frequency domain resources is based on the SBFD-specific UL SCS list indication;

[0517] For example, the reference SCS for UL subband frequency domain resources is based on the SBFD dedicated DL SCS list indication;

[0518] For example, the reference SCS for DL ​​subband frequency domain resources is based on the SBFD-specific DL SCS list indication;

[0519] For example, the reference SCS for DL ​​subband frequency domain resources is based on the SBFD-specific UL SCS list indication;

[0520] For example, the reference SCS for GB frequency domain resources is based on the SBFD-specific UL SCS list indication;

[0521] For example, the reference SCS for GB frequency domain resources is based on the SBFD dedicated DL SCS list indication.

[0522] Taking an SCS list containing SCSs of {15kHz, 30kHz, 60kHz} as an example, if the indication information indicates that SCS index = 0, the terminal determines that the reference SCS is 15kHz.

[0523] Taking an SCS list containing SCSs of {15kHz, 30kHz, 60kHz} as an example, if the indication information indicates that the SCS index is 010 through the bitmap, the terminal determines that the reference SCS is 30kHz.

[0524] For example, the instruction information can be configured based on system information, or it can be based on RRC, DCI, or MAC CE instructions, and the present invention does not limit this.

[0525] Example 3: The terminal determines the reference SCS based on the SBFD dedicated SCS configuration.

[0526] For example, the SBFD-specific SCS can be configured separately based on the UL subband and / or DL ​​subband and / or GB, or it can be configured uniformly. This invention does not limit this.

[0527] For example, the SBFD-specific SCS is configured independently of the traditional SCS list, such as the SBFD-specific SCS list which is configured based on system information or RRC signaling.

[0528] For example, the SBFD-specific SCS is configured based on UL and DL respectively.

[0529] For example, the reference SCS for the frequency domain resources of the UL subband can be determined based on the UL SBFD dedicated SCS configuration or based on the DL SBFD dedicated SCS configuration;

[0530] For example, the reference SCS for the frequency domain resources of the DL subband can be determined based on the UL SBFD dedicated SCS configuration, or it can be determined based on the DL SBFD dedicated SCS configuration.

[0531] For example, the reference SCS for the frequency domain resources of GB can be determined based on the UL SBFD dedicated SCS configuration or the DL SBFD dedicated SCS configuration.

[0532] In some embodiments, the terminal may determine the reference SCS of the current subband and / or GB based on the reference SCS of other types of subband and / or GB.

[0533] For example, the terminal determines the reference SCS of the UL subband based on any one or more of the methods described in Embodiment 1, Embodiment 2, and Embodiment 3; further, the terminal determines the SCS of the DL subband and / or GB based on the reference SCS of the UL subband, and an exemplary method may be as follows:

[0534] For example, the terminal determines that the DL subband reference SCS = the UL subband reference SCS;

[0535] For example, the terminal determines that the GB reference SCS is the same as the UL subband reference SCS.

[0536] For example, the terminal determines the reference SCS of the DL subband based on any one or more of Embodiments 1, 2, and 3; further, the terminal determines the SCS of the UL subband and / or GB based on the reference SCS of the DL subband, and exemplary methods may be as follows:

[0537] For example, the terminal determines that the UL subband reference SCS = the DL subband reference SCS;

[0538] For example, the terminal determines that the GB reference SCS is equal to the DL subband reference SCS.

[0539] For example, the terminal determines the reference SCS of GB based on any one or more of Embodiments 1, 2, and 3; further, the terminal determines the SCS of DL subband and / or UL subband based on the reference SCS of GB, and exemplary methods may be as follows:

[0540] For example, the terminal determines the reference SCS of DL subband = GB;

[0541] For example, the terminal determines the reference SCS of UL subband reference SCS = GB.

[0542] Example 3:

[0543] In some embodiments, the terminal can determine the reference SCS of the UL subband, the reference SCS of the UL subband, and the reference SCS of the GB based on any one or more methods of Embodiment 1 and Embodiment 2. Exemplary methods may be as follows:

[0544] The terminal determines the reference SCS of the UL subband frequency domain resources based on Example 1, and determines the reference SCS of the DL subband frequency domain resources based on Example 2;

[0545] The terminal determines the reference SCS of the UL subband frequency domain resources based on Example 2, and determines the reference SCS of the DL subband frequency domain resources based on Example 1;

[0546] The terminal determines the reference SCS of UL subband frequency domain resources based on Example 1, and determines the reference SCS of GB frequency domain resources based on Example 2;

[0547] The terminal determines the reference SCS of UL subband frequency domain resources based on Example 2, and determines the reference SCS of GB frequency domain resources based on Example 1.

[0548] Based on the above embodiments, this disclosure mainly uses indication information or predefined rules to determine the reference SCS of sub-band and / or GB frequency domain resources, which can achieve flexible indication of the corresponding frequency domain resources while minimizing the impact of standards.

[0549] The optional implementations of the second aspect and the optional embodiments of the second aspect can be found in the optional implementations of the embodiments shown in FIG2 and other related parts of the embodiments involved in FIG2, which will not be repeated here.

[0550] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0551] In some embodiments, the terms "uplink", "uplink", and "physical uplink" can be used interchangeably, as can the terms "downlink", "downlink", and "physical downlink", as well as the terms "sidelink", "sidelink", "sidelink communication", "sidelink communication", "direct connection", "direct link", "direct communication", and "direct link communication".

[0552] In some embodiments, the terms "component carrier (CC)," "cell," "frequency carrier," and "carrier frequency" can be used interchangeably.

[0553] In some embodiments, the terms “resource block (RB)”, “physical resource block (PRB)”, “sub-carrier group (SCG)”, “resource element group (REG)”, “PRB pair”, “RB pair”, “resource element (RE)”, and “sub-carrier” can be used interchangeably.

[0554] In some embodiments, “get,” “obtain,” “receive,” “transmit,” “bidirectional transmission,” and “send and / or receive” can be used interchangeably and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining through self-processing, or autonomous implementation, among other meanings.

[0555] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transfer,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0556] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0557] Corresponding to the embodiments of the subcarrier spacing determination method described above, this disclosure also provides embodiments of the subcarrier spacing determination apparatus.

[0558] Figure 5 is a schematic block diagram illustrating a subcarrier spacing determination device according to an embodiment of the present disclosure. For example, the subcarrier spacing determination device can be installed in a terminal. As shown in Figure 5, the subcarrier spacing determination device includes: a processing module 501.

[0559] In some embodiments, the processing module is configured to determine a reference subcarrier spacing (SCS) based on first information, wherein the reference SCS includes at least one of the following: a reference SCS of the subband corresponding to the subband full-duplex SBFD time domain unit; and a reference SCS of the guard band in the SBFD time domain unit.

[0560] In some embodiments, the first information includes at least one of the following: predefined rules; instruction information.

[0561] In some embodiments, the predefined rules include one of the following: the reference SCS is determined based on the SCS of the bandwidth portion (BWP); the reference SCS is determined based on an SCS list; the reference SCS is determined based on a predefined SCS; the reference SCS of the uplink subband and / or the reference SCS of the guard band are determined based on the reference SCS of the downlink subband; the reference SCS of the downlink subband and / or the reference SCS of the guard band are determined based on the reference SCS of the uplink subband; the reference SCS of the uplink subband and / or the reference SCS of the downlink subband are determined based on the reference SCS of the guard band.

[0562] In some embodiments, the BWP includes at least one of the following: an initial BWP; an activated BWP.

[0563] In some embodiments, the initial BWP includes at least one of the following: an initial uplink BWP; an initial downlink BWP.

[0564] In some embodiments, the activated BWP includes at least one of the following: an activated uplink BWP; an activated downlink BWP. In some embodiments, the reference SCS is determined based on an SCS list and includes at least one of the following: the reference SCS is the largest SCS in the SCS list; the reference SCS is the smallest SCS in the SCS list; the reference SCS is the first SCS in the SCS list; the reference SCS is the last SCS in the SCS list.

[0565] In some embodiments, the indication information is used to indicate an SCS as the reference SCS in the SCS list; or, the indication information is used to indicate an SCS as the reference SCS.

[0566] In some embodiments, the SCS list includes at least one of the following: a conventional SCS list; an SBFD-specific SCS list.

[0567] In some embodiments, the traditional SCS list includes at least one of the following: a traditional uplink SCS list; a traditional downlink SCS list.

[0568] In some embodiments, the SBFD-dedicated SCS list includes at least one of the following: an SBFD-dedicated uplink SCS list; and an SBFD-dedicated downlink SCS list.

[0569] In some embodiments, the processing module is further configured to determine frequency domain resources corresponding to at least one of the following based on the reference SCS: the frequency domain offset of the sub-band and / or the guard band relative to the reference point; and the frequency domain range of the sub-band and / or the guard band.

[0570] In some embodiments, the reference point is determined based on one of the following: Point A; the starting position of the carrier; the starting position of the BWP; or the Common Resource Block (CRB) index.

[0571] In some embodiments, the frequency domain offset is determined based on one of the following: the number of resource blocks specified by predefined rules; the number of resource blocks indicated by indication information; or the number of resource blocks determined based on the resource indication value (RIV).

[0572] In some embodiments, the frequency domain range is determined based on one of the following: the number of resource blocks specified by predefined rules; the number of resource blocks indicated by indication information; or the number of resource blocks determined based on RIV.

[0573] Figure 6 is a schematic block diagram illustrating a subcarrier spacing determination device according to an embodiment of the present disclosure. For example, the subcarrier spacing determination device can be installed in a network device. As shown in Figure 6, the subcarrier spacing determination device includes: a processing module 601, and / or a transmitting module 602.

[0574] In some embodiments, the processing module is configured to determine a reference subcarrier spacing (SCS) based on second information, wherein the reference SCS includes at least one of the following: a reference SCS of the subband corresponding to the subband full-duplex SBFD time domain unit; and a reference SCS of the guard band in the SBFD time domain unit.

[0575] In some embodiments, the second information includes at least one of the following: predefined rules; network device implementation; wherein, when the second information includes network device implementation, the sending module is configured to send indication information to the terminal, the indication information being used to indicate the reference SCS.

[0576] In some embodiments, the predefined rules include one of the following: the reference SCS is determined based on the SCS of the bandwidth portion (BWP); the reference SCS is determined based on an SCS list; the reference SCS is determined based on a predefined SCS; the reference SCS of the uplink subband and / or the reference SCS of the guard band are determined based on the reference SCS of the downlink subband; the reference SCS of the downlink subband and / or the reference SCS of the guard band are determined based on the reference SCS of the uplink subband; the reference SCS of the uplink subband and / or the reference SCS of the downlink subband are determined based on the reference SCS of the guard band.

[0577] In some embodiments, the BWP includes at least one of the following: an initial BWP; an activated BWP.

[0578] In some embodiments, the initial BWP includes at least one of the following: an initial uplink BWP; an initial downlink BWP.

[0579] In some embodiments, the activated BWP includes at least one of the following: an activated uplink BWP; an activated downlink BWP.

[0580] In some embodiments, the reference SCS is determined based on an SCS list and includes at least one of the following: the reference SCS is the largest SCS in the SCS list; the reference SCS is the smallest SCS in the SCS list; the reference SCS is the first SCS in the SCS list; or the reference SCS is the last SCS in the SCS list.

[0581] In some embodiments, the indication information is used to indicate an SCS as the reference SCS in the SCS list; or, the indication information is used to indicate an SCS as the reference SCS.

[0582] In some embodiments, the SCS list includes at least one of the following: a conventional SCS list; an SBFD-specific SCS list.

[0583] In some embodiments, the traditional SCS list includes at least one of the following: a traditional uplink SCS list; a traditional downlink SCS list.

[0584] In some embodiments, the SBFD-dedicated SCS list includes at least one of the following: an SBFD-dedicated uplink SCS list; and an SBFD-dedicated downlink SCS list.

[0585] In some embodiments, the processing module is further configured to determine frequency domain resources corresponding to at least one of the following based on the reference SCS: the frequency domain offset of the sub-band and / or the guard band relative to the reference point; and the frequency domain range of the sub-band and / or the guard band.

[0586] In some embodiments, the reference point is determined based on one of the following: Point A; the starting position of the carrier; the starting position of the BWP; or the Common Resource Block (CRB) index.

[0587] In some embodiments, the frequency domain offset is determined based on one of the following: the number of resource blocks specified by predefined rules; the number of resource blocks indicated by indication information; or the number of resource blocks determined based on the resource indication value (RIV).

[0588] In some embodiments, the frequency domain range is determined based on one of the following: the number of resource blocks specified by predefined rules; the number of resource blocks indicated by indication information; or the number of resource blocks determined based on RIV.

[0589] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can be referred to in the description of the method embodiments. The device embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules; that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0590] This disclosure also provides an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0591] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0592] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0593] Figure 7A is a schematic diagram of the structure of the communication device 7100 proposed in an embodiment of this disclosure. The communication device 7100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 7100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0594] As shown in Figure 7A, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 7100 can be used to execute any of the above methods. Optionally, one or more processors 7101 can be used to invoke instructions to cause the communication device 7100 to execute any of the above methods.

[0595] In some embodiments, the communication device 7100 further includes one or more transceivers 7102. When the communication device 7100 includes one or more transceivers 7102, the transceiver 7102 performs at least one of the communication steps (e.g., steps S201, S202, but not limited thereto) in the above method, such as sending and / or receiving, while the processor 7101 performs at least one of other steps (e.g., steps S201, S202, but not limited thereto). In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, sending unit, transmitter, sending circuit, etc., can be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0596] In some embodiments, the communication device 7100 further includes one or more memories 7103 for storing data. Optionally, all or part of the memories 7103 may be located outside the communication device 7100. In optional embodiments, the communication device 7100 may include one or more interface circuits 7104. Optionally, the interface circuits 7104 are connected to the memories 7102 and can be used to receive data from the memories 7102 or other devices, and to send data to the memories 7102 or other devices. For example, the interface circuits 7104 can read data stored in the memories 7102 and send the data to the processor 7101.

[0597] The communication device 7100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 7100 described in this disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7A. The communication device may be a standalone device or a part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0598] Figure 7B is a schematic diagram of the structure of the chip 7200 according to an embodiment of this disclosure. For cases where the communication device 7100 can be a chip or a chip system, the schematic diagram of the chip 7200 shown in Figure 7B can be referenced, but is not limited thereto.

[0599] Chip 7200 includes one or more processors 7201. Chip 7200 is used to perform any of the above methods.

[0600] In some embodiments, chip 7200 further includes one or more interface circuits 7202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 7200 further includes one or more memories 7203 for storing data. Optionally, all or part of the memories 7203 may be located outside chip 7200. Optionally, interface circuit 7202 is connected to memory 7203, and interface circuit 7202 can be used to receive data from memory 7203 or other devices, and interface circuit 7202 can be used to send data to memory 7203 or other devices. For example, interface circuit 7202 can read data stored in memory 7203 and send the data to processor 7201.

[0601] In some embodiments, the interface circuit 7202 performs at least one of the communication steps (e.g., steps S201, S202, but not limited thereto) in the above-described method, such as sending and / or receiving. For example, the interface circuit 7202 performing the communication steps (e.g., steps S201, S202, but not limited thereto) refers to the interface circuit 7202 performing data interaction between the processor 7201, the chip 7200, the memory 7203, or the transceiver device. In some embodiments, the processor 7201 performs at least one of other steps (e.g., steps S201, S202, but not limited thereto).

[0602] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0603] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 7100, cause the communication device 7100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0604] This disclosure also provides a program product that, when executed by the communication device 7100, causes the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0605] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. A method for determining subcarrier spacing, characterized in that, The method, executed by a terminal, includes: The reference subcarrier spacing (SCS) is determined based on the first information, wherein the reference SCS includes at least one of the following: The reference SCS of the sub-band corresponding to the sub-band full-duplex SBFD time-domain unit; The reference SCS for the guard band in the SBFD time domain unit.

2. The method according to claim 1, characterized in that, The first information includes at least one of the following: Predefined rules; Instruction information.

3. The method according to claim 2, characterized in that, The predefined rules include one of the following: The reference SCS is determined based on the SCS of the bandwidth portion (BWP). The reference SCS is determined based on the SCS list; The reference SCS is determined based on a predefined SCS; The reference SCS of the uplink subband and / or the reference SCS of the guard band are determined based on the reference SCS of the downlink subband. The reference SCS for the downlink subband and / or the reference SCS for the guard band are determined based on the reference SCS for the uplink subband. The reference SCS for the uplink subband and / or the reference SCS for the downlink subband are determined based on the reference SCS for the guard band.

4. The method according to claim 3, characterized in that, The BWP includes at least one of the following: Initial BWP; Activated BWP.

5. The method according to claim 3, characterized in that, The reference SCS is determined based on an SCS list and includes at least one of the following: The reference SCS is the largest SCS in the SCS list; The reference SCS is the smallest SCS in the SCS list; The reference SCS is the first SCS in the SCS list; The reference SCS is the last SCS in the SCS list.

6. The method according to claim 2, characterized in that, The indication information is used to indicate an SCS in the SCS list as the reference SCS; Alternatively, the indication information may be used to indicate an SCS as the reference SCS.

7. The method according to any one of claims 3, 5, and 6, characterized in that, The SCS list includes at least one of the following: Traditional SCS list; List of SCS for SBFD.

8. The method according to claim 7, characterized in that, The list of traditional SCS includes at least one of the following: Traditional uplink SCS list; Traditional downlink SCS list.

9. The method according to claim 7, characterized in that, The SBFD-specific SCS list includes at least one of the following: SBFD dedicated uplink SCS list; List of downlink SCS for SBFD.

10. The method according to any one of claims 1 to 9, characterized in that, The method further includes: Based on the reference SCS, determine at least one of the following frequency domain resources: The frequency domain offset of the sub-band and / or the guard band relative to the reference point; The frequency domain range of the sub-band and / or the guard band.

11. The method according to claim 10, characterized in that, The reference point is determined based on one of the following: Point A; The starting position of the carrier wave; The starting position of BWP; CRB index for public resource blocks.

12. The method according to claim 10, characterized in that, The frequency domain offset is determined based on one of the following: The number of resource blocks specified by predefined rules; The number of resource blocks indicated by the instruction message; The number of resource blocks determined based on the Resource Indicator Value (RIV).

13. The method according to claim 10, characterized in that, The frequency domain range is determined based on one of the following: The number of resource blocks specified by predefined rules; The number of resource blocks indicated by the instruction message; The number of resource blocks determined based on RIV.

14. A method for determining subcarrier spacing, characterized in that, Performed by a network device, the method includes: The reference subcarrier spacing (SCS) is determined based on the second information, wherein the reference SCS includes at least one of the following: The reference SCS of the sub-band corresponding to the sub-band full-duplex SBFD time-domain unit; The reference SCS for the guard band in the SBFD time domain unit.

15. The method according to claim 14, characterized in that, The second information includes at least one of the following: Predefined rules; Network device implementation; Where the second information includes network device implementation, the method further includes: sending indication information to the terminal, the indication information being used to indicate the reference SCS.

16. The method according to claim 15, characterized in that, The predefined rules include one of the following: The reference SCS is determined based on the SCS of the bandwidth portion (BWP). The reference SCS is determined based on the SCS list; The reference SCS is determined based on a predefined SCS; The reference SCS of the uplink subband and / or the reference SCS of the guard band are determined based on the reference SCS of the downlink subband. The reference SCS for the downlink subband and / or the reference SCS for the guard band are determined based on the reference SCS for the uplink subband. The reference SCS for the uplink subband and / or the reference SCS for the downlink subband are determined based on the reference SCS for the guard band.

17. The method according to claim 16, characterized in that, The BWP includes at least one of the following: Initial BWP; Activated BWP.

18. The method according to claim 16, characterized in that, The reference SCS is determined based on an SCS list and includes at least one of the following: The reference SCS is the largest SCS in the SCS list; The reference SCS is the smallest SCS in the SCS list; The reference SCS is the first SCS in the SCS list; The reference SCS is the last SCS in the SCS list.

19. The method according to claim 15, characterized in that, The indication information is used to indicate an SCS in the SCS list as the reference SCS; Alternatively, the indication information may be used to indicate an SCS as the reference SCS.

20. The method according to any one of claims 16, 18, and 19, characterized in that, The SCS list includes at least one of the following: Traditional SCS list; List of SCS for SBFD.

21. The method according to claim 20, characterized in that, The list of traditional SCS includes at least one of the following: Traditional uplink SCS list; Traditional downlink SCS list.

22. The method according to claim 20, characterized in that, The SBFD-specific SCS list includes at least one of the following: SBFD dedicated uplink SCS list; List of downlink SCS for SBFD.

23. The method according to any one of claims 14 to 22, characterized in that, The method further includes: Based on the reference SCS, determine at least one of the following frequency domain resources: The frequency domain offset of the sub-band and / or the guard band relative to the reference point; The frequency domain range of the sub-band and / or the guard band.

24. The method according to claim 23, characterized in that, The reference point is determined based on one of the following: Point A; The starting position of the carrier wave; The starting position of BWP; CRB index for public resource blocks.

25. The method according to claim 23, characterized in that, The frequency domain offset is determined based on one of the following: The number of resource blocks specified by predefined rules; The number of resource blocks indicated by the instruction message; The number of resource blocks determined based on the Resource Indicator Value (RIV).

26. The method according to claim 23, characterized in that, The frequency domain range is determined based on one of the following: The number of resource blocks specified by predefined rules; The number of resource blocks indicated by the instruction message; The number of resource blocks determined based on RIV.

27. A subcarrier spacing determination device, characterized in that, The device includes: The processing module is configured to determine a reference subcarrier spacing (SCS) based on predefined rules and / or indication information, wherein the reference SCS includes at least one of the following: The reference SCS of the sub-band corresponding to the sub-band full-duplex SBFD time-domain unit; The reference SCS for the guard band in the SBFD time domain unit.

28. A subcarrier spacing determination device, characterized in that, The device includes: The processing module is configured to determine the reference subcarrier spacing (SCS) according to predefined rules, and / or the transmitting module is configured to send indication information to the terminal, the indication information being used to indicate the reference subcarrier spacing (SCS) to the terminal; The reference SCS includes at least one of the following: The reference SCS of the sub-band corresponding to the sub-band full-duplex SBFD time-domain unit; The reference SCS for the guard band in the SBFD time domain unit.

29. A terminal, characterized in that, include: One or more processors; The terminal is used to execute the subcarrier spacing determination method according to any one of claims 1 to 13.

30. A network device, characterized in that, include: One or more processors; The network device is used to perform the subcarrier spacing determination method according to any one of claims 14 to 26.

31. A communication system, characterized in that, The device includes a terminal and a network device, wherein the terminal is configured to implement the subcarrier spacing determination method according to any one of claims 1 to 13, and the network device is configured to implement the subcarrier spacing determination method according to any one of claims 14 to 26.

32. A storage medium storing instructions, characterized in that, When the instruction is executed on the communication device, the communication device performs the subcarrier spacing determination method according to any one of claims 1 to 26.

33. A program product, characterized in that, When the above-mentioned program product is executed by a communication device, the communication device performs the subcarrier spacing determination method according to any one of claims 1 to 26.

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