Calculation scheme determination method and apparatus, terminal, network device, and storage medium

Abstract

The present disclosure relates to the technical field of communications, and specifically relates to a calculation scheme determination method and apparatus, a communication apparatus, and a storage medium. The calculation scheme determination method comprises: on the basis of a predefined rule, determining transport block size (TBS) calculation schemes for physical downlink shared channels (PDSCHs) transmitted in different time units, or receiving indication information sent by a network device and used to indicate TBS calculation schemes for PDSCHs transmitted in different time units, wherein the different time units comprise an SBFD time unit and a non-SBFD time unit. According to the present disclosure, a terminal can determine TBS calculation schemes for PDSCHs transmitted in different time units; thus, for PDSCHs received in different time units, TBS calculation can be performed on the basis of suitable calculation schemes, instead of calculating the TBS of the PDSCH transmitted in each time unit on the basis of a same calculation scheme. Accordingly, the present disclosure helps to ensure good PDSCH reception performance when the PDSCH is received on the basis of the calculated TBS.

Description

Calculation methods, determination of methods and devices, terminals, network equipment and storage media Technical Field

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

[0002] Network devices can send data to terminals, and this data can be carried in the Physical Downlink Shared Channel (PDSCH). For example, data is carried in the PDSCH in the form of Transport Blocks (TBs), and the size of the transport block (TB size, TBS) affects the transmission parameters of the PDSCH. Therefore, it is necessary to determine the TBS of the PDSCH (i.e., the TBS of the data carried by the PDSCH). However, in some communication scenarios, determining the TBS can present some technical challenges.

[0003] Summary of the Invention

[0004] Embodiments of this disclosure provide methods and apparatus for determining computational methods, terminals, network devices, and storage media to address technical problems in the related art.

[0005] According to a first aspect of the present disclosure, a calculation method for determining the transport block size (TBS) of a Physical Downlink Shared Channel (PDSCH) transmitted in different time units is proposed, executed by a terminal. The method includes: determining, according to predefined rules, a calculation method for the transport block size (TBS) of a Physical Downlink Shared Channel (PDSCH) transmitted in different time units; or receiving indication information sent by a network device, the indication information indicating the calculation method for the TBS of a PDSCH transmitted in different time units; wherein, the different time units include a Subband Full-Duplex (SBFD) time unit and a non-SBFD time unit.

[0006] According to a second aspect of the present disclosure, a calculation method for determining the transport block size (TBS) of a Physical Downlink Shared Channel (PDSCH) transmitted in different time units is proposed, executed by a network device. The method includes: determining, according to predefined rules, the calculation method for the transport block size (TBS) of a Physical Downlink Shared Channel (PDSCH) transmitted in different time units; or, sending indication information to a terminal, the indication information indicating the calculation method for the TBS of a PDSCH transmitted in different time units; wherein, the different time units include a Subband Full-Duplex (SBFD) time unit and a non-SBFD time unit.

[0007] According to a third aspect of the present disclosure, a calculation method determination apparatus is provided, the apparatus comprising: a receiving module configured to receive indication information from a network device; and a processing module configured to determine, according to a predefined rule or the indication information, a calculation method for the transport block size (TBS) of a Physical Downlink Shared Channel (PDSCH) transmitted in different time units; wherein the different time units include a Subband Full-Duplex (SBFD) time unit and a non-SBFD time unit.

[0008] According to a fourth aspect of the present disclosure, a calculation method determination apparatus is provided, the apparatus comprising: a processing module configured to determine, according to predefined rules, a calculation method for the transport block size (TBS) of a Physical Downlink Shared Channel (PDSCH) transmitted in different time units; or a sending module configured to send indication information to a terminal, the indication information being used to indicate the calculation method for the TBS of the PDSCH transmitted in different time units; wherein the different time units include a Subband Full-Duplex (SBFD) time unit and a non-SBFD time unit.

[0009] According to a fifth aspect of the present disclosure, a terminal is provided, comprising: one or more processors; wherein the terminal is configured to execute the calculation mode determination method described in the first aspect.

[0010] 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 calculation mode determination method described in the second aspect.

[0011] 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 calculation method determination method described in the first aspect, and the network device is configured to implement the calculation method determination method described in the second aspect.

[0012] 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 the calculation method determination method described in the first aspect.

[0013] 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 the calculation method determination method described in the second aspect.

[0014] According to embodiments of this disclosure, the terminal can determine the calculation method for the TBS of PDSCH transmitted in different time units. Therefore, for PDSCH received in different time units, the TBS can be calculated based on an appropriate calculation method, rather than using the same calculation method to calculate the TBS of PDSCH transmitted in each time unit. This helps ensure good PDSCH reception performance when receiving PDSCH based on the calculated TBS. Attached Figure Description

[0015] 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.

[0016] Figure 1A is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0017] Figure 1B is a schematic diagram of a sub-band according to an embodiment of the present disclosure.

[0018] Figure 2 is an interactive schematic diagram illustrating a calculation method for determining a method according to an embodiment of the present disclosure.

[0019] Figure 3 is a schematic block diagram illustrating a calculation method determination device according to an embodiment of the present disclosure.

[0020] Figure 4 is a schematic block diagram illustrating a calculation method determination device according to an embodiment of the present disclosure.

[0021] Figure 5A is a schematic diagram of the structure of the communication device proposed in an embodiment of this disclosure.

[0022] Figure 5B is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. Detailed Implementation

[0023] Embodiments of this disclosure propose a calculation method and apparatus, a terminal, a network device, and a storage medium for determining the calculation method.

[0024] In a first aspect, embodiments of this disclosure propose a calculation method for determining the transport block size (TBS) of a Physical Downlink Shared Channel (PDSCH) transmitted in different time units, executed by a terminal. The method includes: determining, according to predefined rules, the calculation method for the transport block size (TBS) of a PDSCH transmitted in different time units; or, receiving indication information sent by a network device, the indication information indicating the calculation method for the TBS of a PDSCH transmitted in different time units; wherein, the different time units include a Subband Full-Duplex (SBFD) time unit and a non-SBFD time unit.

[0025] In the above embodiments, the terminal can determine the calculation method for the TBS of PDSCH transmitted in different time units. Therefore, for PDSCH received in different time units, the TBS can be calculated based on an appropriate calculation method, rather than using the same calculation method to calculate the TBS of PDSCH transmitted in each time unit. This helps ensure good PDSCH reception performance when receiving PDSCH based on the calculated TBS.

[0026] In conjunction with some embodiments of the first aspect, in some embodiments, the indication information is further used to indicate at least one of the following: calculating the TBS of the PDSCH transmitted in the SBFD time unit based on the resource block RB allocated for transmitting the PDSCH; calculating the TBS of the PDSCH transmitted in the SBFD time unit based on the RB available for transmitting the PDSCH; calculating the TBS of the PDSCH transmitted in the non-SBFD time unit based on the RB allocated for transmitting the PDSCH; and calculating the TBS of the PDSCH transmitted in the non-SBFD time unit based on the RB available for transmitting the PDSCH.

[0027] In conjunction with some embodiments of the first aspect, in some embodiments, the predefined rule includes at least one of the following: determining the calculation method of the TBS of PDSCH transmitted in different time units based on the type of PDSCH; determining the calculation method of the TBS of PDSCH transmitted in different time units based on the type of the time unit in which the PDSCH is located; determining the calculation method of the TBS of PDSCH transmitted in the SFBD time unit based on the relationship between the frequency domain resources of the PDSCH and the downlink subband corresponding to the SFBD time unit.

[0028] In conjunction with some embodiments of the first aspect, in some embodiments, the relationship between the frequency domain resources of the PDSCH and the downlink sub-band corresponding to the SFBD time unit includes: whether the frequency domain resources of the PDSCH include frequency domain resources located outside the downlink sub-band.

[0029] In conjunction with some embodiments of the first aspect, in some embodiments, the predefined rule further includes: determining that the frequency domain resources of the PDSCH include frequency domain resources located outside the downlink subband, and determining the calculation method of the TBS of the PDSCH transmitted in the SFBD time unit based on the proportion of RBs located outside the downlink subband in the frequency domain resources of the PDSCH to the RBs allocated for transmitting the PDSCH.

[0030] In conjunction with some embodiments of the first aspect, in some embodiments, the type of PDSCH includes at least one of the following: semi-statically scheduled PDSCH; PDSCH retransmission; multiple PDSCHs scheduled by a single downlink control information (DCI); and PDSCHs that need to be received by merging.

[0031] In conjunction with some embodiments of the first aspect, in some embodiments, each of the plurality of PDSCHs occupies the same type of time unit.

[0032] In conjunction with some embodiments of the first aspect, in some embodiments, the indication information is carried in at least one of: System Information Block (SIB); Radio Resource Control (RRC) message; DCI; Media Access Control Unit (MAC CE).

[0033] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: calculating the TBS based on a default method in the absence of receiving the indication information.

[0034] Secondly, embodiments of this disclosure propose a calculation method for determining the transport block size (TBS) of the Physical Downlink Shared Channel (PDSCH) transmitted in different time units, which is executed by a network device. The method includes: determining the calculation method of the transport block size (TBS) of the PDSCH transmitted in different time units according to predefined rules; or sending indication information to a terminal, the indication information being used to indicate the calculation method of the TBS of the PDSCH transmitted in different time units; wherein the different time units include sub-band full-duplex (SBFD) time units and non-SBFD time units.

[0035] In conjunction with some embodiments of the second aspect, in some embodiments, the indication information is further used to indicate at least one of the following: calculating the TBS of the PDSCH transmitted in the SBFD time unit based on the resource block RB allocated for transmitting the PDSCH; calculating the TBS of the PDSCH transmitted in the SBFD time unit based on the RB available for transmitting the PDSCH; calculating the TBS of the PDSCH transmitted in the non-SBFD time unit based on the RB allocated for transmitting the PDSCH; and calculating the TBS of the PDSCH transmitted in the non-SBFD time unit based on the RB available for transmitting the PDSCH.

[0036] In conjunction with some embodiments of the second aspect, in some embodiments, the predefined rules include at least one of the following: determining the calculation method of the TBS of PDSCH transmitted in different time units based on the type of PDSCH; determining the calculation method of the TBS of PDSCH transmitted in different time units based on the type of the time unit in which the PDSCH is located; determining the calculation method of the TBS of PDSCH transmitted in the SFBD time unit based on the relationship between the frequency domain resources of the PDSCH and the downlink subband corresponding to the SFBD time unit.

[0037] In conjunction with some embodiments of the second aspect, in some embodiments, the relationship between the frequency domain resources of the PDSCH and the downlink sub-band corresponding to the SFBD time unit includes: whether the frequency domain resources of the PDSCH include frequency domain resources located outside the downlink sub-band.

[0038] In conjunction with some embodiments of the second aspect, in some embodiments, the predefined rule further includes: determining that the frequency domain resources of the PDSCH include frequency domain resources located outside the downlink subband, and determining the calculation method of the TBS of the PDSCH transmitted in the SFBD time unit based on the proportion of RBs located outside the downlink subband in the frequency domain resources of the PDSCH to the RBs allocated for transmitting the PDSCH.

[0039] In conjunction with some embodiments of the second aspect, in some embodiments, the type of PDSCH includes at least one of the following: semi-statically scheduled PDSCH; PDSCH repeated transmission; multiple PDSCHs scheduled by a single downlink control information (DCI); and PDSCHs that need to be received by merging.

[0040] In conjunction with some embodiments of the second aspect, in some embodiments, each of the plurality of PDSCHs occupies the same type of time unit.

[0041] In conjunction with some embodiments of the second aspect, in some embodiments, the indication information is carried in at least one of the following: System Information Block (SIB); Radio Resource Control (RRC) message; DCI; Media Access Control Unit (MAC CE).

[0042] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: calculating the TBS based on a default method when the indication information is not sent to the terminal.

[0043] Thirdly, embodiments of this disclosure propose a calculation method determination apparatus, the apparatus comprising: a receiving module configured to receive indication information from a network device; and a processing module configured to determine, according to predefined rules or the indication information, the calculation method for the transport block size (TBS) of the Physical Downlink Shared Channel (PDSCH) transmitted in different time units; wherein the different time units include a Subband Full-Duplex (SBFD) time unit and a non-SBFD time unit.

[0044] Fourthly, embodiments of this disclosure propose a calculation method determination apparatus, the apparatus comprising: a processing module configured to determine, according to predefined rules, the calculation method for the transport block size (TBS) of a Physical Downlink Shared Channel (PDSCH) transmitted in different time units; or a sending module configured to send indication information to a terminal, the indication information being used to indicate the calculation method for the TBS of a PDSCH transmitted in different time units; wherein the different time units include a Subband Full-Duplex (SBFD) time unit and a non-SBFD time unit.

[0045] Fifthly, embodiments of this disclosure provide a terminal comprising: one or more processors; wherein the terminal is configured to execute the calculation method determination method described in any one of the optional embodiments of the first aspect.

[0046] 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 calculation method determination method described in any one of the optional embodiments of the second aspect.

[0047] 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 calculation method determination method according to any one of the optional embodiments of the first aspect, and the network device is configured to implement the calculation method determination method according to any one of the optional embodiments of the second aspect.

[0048] 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 calculation method determination methods described in the first aspect, the optional embodiments of the first aspect, the second aspect, and the optional embodiments of the second aspect.

[0049] Ninthly, 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 calculation method determination methods described in the first aspect, the optional embodiments of the first aspect, the second aspect, and the optional embodiments of the second aspect.

[0050] In a tenth aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the calculation method determination method described in any one of the first aspect, the optional embodiment of the first aspect, the second aspect, and the optional embodiment of the second aspect.

[0051] Understandably, the above-described calculation method, determining the apparatus, communication device, 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 achievable can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0052] This disclosure provides embodiments of a calculation method determination method and apparatus, a terminal, a network device, and a storage medium. In some embodiments, the terms "calculation method determination method" and "information processing method," "communication method," etc., can be used interchangeably; the terms "calculation method 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] In the embodiments disclosed herein, "multiple" refers to two or more.

[0059] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0060] 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, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0065] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0066] 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”.

[0067] 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.

[0068] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0074] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0075] 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.

[0076] Figure 1A is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] 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).

[0081] 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.

[0082] 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.

[0083] 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.

[0084] 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.

[0085] 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).

[0086] In some embodiments, network devices can send data to terminals, and the data can be carried in a Physical Downlink Shared Channel (PDSCH). For example, data is carried in the PDSCH in the form of transport blocks (TBs), and the size of the transport block (TB size, TBS) will affect the transmission parameters of the PDSCH. Therefore, it is necessary to determine the TBS of the PDSCH (that is, the TBS of the data carried by the PDSCH).

[0087] In some embodiments, the frequency domain resources of the PDSCH are determined within the BandWidth Part (BWP), for example, by the network device through Frequency Domain Resource Allocation (FDRA) information carried in the Downlink Control Information (DCI). For instance, the downlink bandwidth part (DL BWP) of downlink transmission contains L consecutive resource blocks (RBs) in the frequency domain, where L is an integer greater than or equal to 1.

[0088] In some embodiments, the allocation of frequency domain resources for PDSCH mainly includes the following two schemes:

[0089] RA Type 0 (Resource Allocation Type 0): Indicates the resources occupied by the PDSCH in the frequency domain through a bitmap, which can indicate non-contiguous frequency domain resources.

[0090] RA Type 1 (Resource Allocation Type 1): Indicates the starting position and length of the frequency domain resources occupied by the PDSCH through joint coding. This scheme can indicate L consecutive Virtual Resource Blocks (VRBs). There are two mapping methods from VRBs to Physical Resource Blocks (PRBs): interleaved mapping and non-interleaved mapping. When using interleaved mapping, the mapping relationship from VRB to PRB is determined by the sub-block interleaver.

[0091] In some embodiments, the terminal can determine the resource location occupied by PDSCH in the frequency domain based on FDRA information. The location of the frequency domain resource can be called the assigned PRB, which means the PRB allocated or indicated by the network device for PDSCH transmission. The PRB contains at least one resource element (RE).

[0092] In some embodiments, based on the allocated PRB, the terminal and network device can determine the TBS of the PDSCH bearer data based on the following steps:

[0093] Step 1: Calculate the number of Resource Units (REs) used for data transmission within a time unit (e.g., a time slot). The number of REs used for data transmission within a time unit is determined based on the allocated number of Resource Units (PRBs).

[0094] Step 2: Determine the TBS based on the number of REs calculated in Step 1, and based on the code rate, modulation and coding level, and number of transmission layers.

[0095] As can be seen, in the above embodiments, the terminal and network device determine the TBS based on the PRB allocated by the FDRA.

[0096] In some embodiments, Subband Full Duplex (SBFD) technology is proposed to improve the communication efficiency between network devices and terminals. Network devices can configure subbands for terminals within time units; these time units are called SBFD time units, and the network device can achieve full-duplex communication within the SBFD time units.

[0097] In some embodiments, the network device can configure uplink subbands for terminals in downlink time units or in flexible time units. Frequency domain resources other than uplink subbands can be referred to as downlink subbands. These time units configured with uplink subbands can be called Subband Full Duplex (SBFD) time units, while time units not configured with uplink subbands can be called non-SBFD (or non-SBFD) time units.

[0098] In some embodiments, the network device can configure downlink subbands for terminals in uplink time units or in flexible time units. Frequency domain resources outside the uplink subbands can be referred to as downlink subbands. These time units configured with downlink subbands can be called SBFD time units, while time units without downlink subbands can be called non-SBFD time units.

[0099] The disclosure does not limit the time unit, and it may include at least one of the following: frame, subframe, slot, symbol, and sub-slot. The symbol may be, for example, an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0100] Taking an SBFD time unit with an uplink subband as an example, the network device can receive information sent by the terminal in the uplink subband of the SBFD time unit, and can send information to the terminal in the frequency domain resources outside the uplink subband corresponding to the SBFD time unit. Thus, the network device can achieve full-duplex communication in the SBFD time unit.

[0101] Figure 1B is a schematic diagram of a sub-band according to an embodiment of the present disclosure.

[0102] As shown in Figure 1B, taking five time slots from slot#n to slot#n+4 as an example, the time slot structure pattern of the five time slots is DFFFU, where D indicates that the corresponding time slot is a downlink time slot, F indicates that the corresponding time slot is a flexible time slot, and U indicates that the corresponding time slot is an uplink time slot.

[0103] Network devices can configure uplink subbands in the frequency domain resources corresponding to slots #n+1 to #n+3. When these three flexible time slots are used for downlink transmission, the network devices can perform uplink transmission in the uplink subbands corresponding to these three time slots, and downlink transmission in the frequency domain resources outside the uplink subbands corresponding to these three time slots (e.g., called downlink subbands). Thus, full-duplex communication can be achieved in these three time slots configured with uplink subbands.

[0104] In some embodiments, a guard band (GB) may be provided between the uplink subband and the downlink subband to achieve frequency domain isolation between the uplink subband and the downlink subband.

[0105] In SBFD communication scenarios, because subbands are configured in the SBFD time unit, the PRB allocated by the network device for PDSCH transmission to the terminal in the SBFD time unit can be partially located within the subband and partially located outside the subband, which will cause problems in the process of determining TBS.

[0106] Taking the SBFD time unit as an example, which includes a downlink time unit configured with an uplink subband, let's say this time unit is denoted as slot#n. Before the uplink subband is configured in slot#n, the frequency domain resources corresponding to slot#n are downlink frequency domain resources. All PRBs allocated by the network device for PDSCH transmission to the terminal in slot#n are located within the downlink frequency domain resources.

[0107] However, after an uplink subband is configured in slot#n, the uplink subband will occupy a portion of the downlink frequency domain resources. For example, the uplink subband can divide the downlink frequency domain resources into multiple non-contiguous downlink subbands. The PRB allocated by the network device for PDSCH transmission to the terminal in slot#n can be partially located within the downlink subband and partially located outside the downlink subband.

[0108] In this scenario, PRBs located outside the downlink subband cannot be used for PDSCH transmission; network devices only transmit PDSCH within the downlink subband. In this case, the PRBs available for PDSCH transmission in slot #n (e.g., those that can be called "available") are different (e.g., different in number) from the PRBs allocated for PDSCH transmission. If the TBS of the PDSCH in slot #n is still determined based on the allocated PRBs, it will lead to a degraded transmission performance.

[0109] For example, in PDSCH repetition, multiple PDSCHs are repetitively transmitted across multiple time units, some of which are SBFD time units and others are non-SBFD time units. The PRB available for PDSCH transmission in the SBFD time unit is different from the PRB allocated for PDSCH transmission. In this case, if the TBS of the PDSCHs in multiple time units is determined based on the allocated PRBs, and then the PDSCHs are transmitted based on the TBSs, it will lead to a degraded reception performance for PDSCH repetition and retransmission.

[0110] Figure 2 is an interactive schematic diagram illustrating a calculation method for determining a method according to an embodiment of the present disclosure.

[0111] As shown in Figure 2, the method for determining the calculation method may include the following steps:

[0112] In step S201, the terminal receives instruction information sent by the network device.

[0113] In some embodiments, the network device sends instruction information to the terminal.

[0114] In some embodiments, the indication information is used to indicate how the TBS of the PDSCH transmitted in different time units is calculated.

[0115] In step S202, the terminal determines the calculation method of TBS for PDSCH transmitted in different time units.

[0116] In some embodiments, different time units may refer to different types of time units, such as SBFD time units and non-SBFD time units, but are not limited to these two types of time units.

[0117] In some embodiments, the terminal may determine the calculation method of TBS for PDSCH transmitted in different time units based on the indication information.

[0118] In some embodiments, the terminal can determine the calculation method of the TBS of the PDSCH transmitted in different time units according to predefined rules. The network device can also determine the calculation method of the TBS of the PDSCH transmitted in different time units according to predefined rules. In this case, step S201 can be omitted.

[0119] It should be noted that the calculation methods for the TBS of the PDSCH transmitted in different time units determined by the network device and the terminal can be the same or different, and this disclosure does not limit this. The network device can be a network device that supports SBFD technology, and the terminal can be a terminal that supports SBFD technology.

[0120] In some embodiments, the type of PDSCH includes at least one of the following:

[0121] Semi-static scheduling (SPS) PDSCH, such as SPS PDSCH, can be activated via DCI.

[0122] PDSCH retransmission, for example, can be dynamically scheduled via DCI;

[0123] Multiple PDSCHs (muti-PDSCHs) can be scheduled by a single DCI. For example, in high-frequency application scenarios (e.g., above 52.6 GHz), multiple PDSCHs can be scheduled by a single DCI.

[0124] The received PDSCH needs to be merged (e.g., PDSCH repeated transmissions).

[0125] In some embodiments, the aforementioned centralized type of PDSCH refers to a PDSCH transmitted in multiple time units. The frequency domain resources of the PDSCH can be determined based on the same FDRA in different time units, for example, determining the RBs allocated for the transmission of the PDSCH. Therefore, the RBs allocated to the PDSCH in multiple time units can be the same. Here, the RB can be, for example, a VRB or a PRB. Taking a PRB as an example, the RB allocated for the transmission of the PDSCH can also be called an assigned PRB.

[0126] Since PDSCH is transmitted across multiple time units, and these time units include SFBD and non-SBFD time units, the PRB available for PDSCH transmission in the SFBD time unit may differ from the PRB allocated for PDSCH transmission. If the TBS of PDSCH in multiple time units is still determined based on the allocated PRB, and then PDSCH is transmitted based on the TBS, PDSCH transmission performance will degrade. For example, when transmitting PDSCH based on the TBS, there may be cases where it is determined that PDSCH will be transmitted in frequency domain resources outside the downlink subband, but in reality, PDSCH cannot be transmitted in frequency domain resources outside the downlink subband, resulting in some PDSCH failing to be transmitted successfully in the SBFD time unit.

[0127] It should be noted that the PDSCH in this disclosure is not limited to these types of PDSCH. For example, it can also be applied to PDSCH transmitted in a single time unit, such as a single PDSCH transmitted in a single time slot by a single DCI schedule.

[0128] In some embodiments, a terminal may upload the calculated TBS in the corresponding time unit based on a determined calculation method, and transmit the PDSCH based on the calculated TBS. A network device may upload the calculated TBS in the corresponding time unit based on a determined calculation method, and receive the PDSCH based on the calculated TBS.

[0129] According to embodiments of this disclosure, the terminal can determine the calculation method for the TBS of PDSCH transmitted in different time units. Therefore, for PDSCH received in different time units, the TBS can be calculated based on an appropriate calculation method, rather than using the same calculation method to calculate the TBS of PDSCH transmitted in each time unit. This helps ensure good PDSCH reception performance when receiving PDSCH based on the calculated TBS.

[0130] Network devices can also determine the calculation method for the TBS of PDSCH transmitted in different time units. Therefore, for PDSCH transmitted in different time units, the TBS can be calculated based on an appropriate method, rather than using the same method for each time unit. This helps ensure good transmission performance of PDSCH when transmitting based on the calculated TBS.

[0131] In some embodiments, each of the multiple PDSCHs occupies the same type of time unit.

[0132] For example, a PDSCH can be multiple PDSCHs, such as PDSCHs transmitted on multiple slots, while a PDSCH in a single slot can be called a single PDSCH. In this embodiment, the time units occupied by each of the multiple PDSCHs are of the same type. Taking the time unit as a symbol as an example, the symbols occupied by a PDSCH in a slot are of the same type, such as all SBFD symbols or all non-SBFD symbols.

[0133] Therefore, it is possible to avoid a single PDSCH spanning different types of time units. As a result, for a single PDSCH, there will be no situation where the PRB available for transmitting the PDSCH is different from the PRB allocated for transmitting the PDSCH, thus avoiding the transmission performance of a single PDSCH being affected by this problem.

[0134] The following examples illustrate how the TBS of the PDSCH transmitted in different time units is calculated based on the indication information.

[0135] In some embodiments, the indication information is carried in at least one of the following:

[0136] System Information Block (SIB), such as SIB1 or other SIBs;

[0137] Radio Resource Control (RRC) message;

[0138] Downlink Control Information (DCI);

[0139] Media Access Control Element (MAC CE).

[0140] In some embodiments, TBS is calculated based on the default method if no indication information is received.

[0141] For example, when a terminal determines the calculation method for the TBS of PDSCH transmitted in different time units based on the indication information, if it has not yet received the indication information (e.g., SIB, RRC signaling, DCI, MAC CE, etc. do not carry the indication information), it can use the default calculation method to calculate the TBS of PDSCH transmitted in any time unit.

[0142] In some embodiments, the calculation method may include one of the following:

[0143] Method 1: Calculate the TBS of the PDSCH based on the RB allocated for the transmission PDSCH;

[0144] Method 2: Calculate the TBS of PDSCH based on the RB that can be used to transmit PDSCH.

[0145] For example, the default calculation method can be method one above, or method two above, or a random method between method one and method two above.

[0146] For example, the default calculation method could be the calculation method of TBS of PDSCH transmitted in different time units according to predefined rules.

[0147] In some embodiments, the indication information is also used to indicate at least one of the following:

[0148] The TBS of the PDSCH transmitted in the SBFD time unit is calculated based on the RB allocated for the transmission of the PDSCH.

[0149] The TBS of the PDSCH transmitted in the SBFD time unit is calculated based on the RB that can be used to transmit the PDSCH.

[0150] The TBS of the PDSCH transmitted in non-SBFD time units is calculated based on the RB allocated for the transmission of the PDSCH.

[0151] The TBS of the PDSCH transmitted in non-SBFD time units is calculated based on the RB that can be used to transmit the PDSCH.

[0152] In some embodiments, when the PDSCH is transmitted in multiple time units, the frequency domain resources of the PDSCH can be determined based on the same FDRA in different time units.

[0153] In this case, for both SBFD and non-SBFD time units across multiple time units, the RBs allocated for transmitting PDSCH are the same, all determined based on FDRA.

[0154] For multiple time units, including SBFD time units and non-SBFD time units, the RBs that can be used to transmit PDSCH can be the same or different.

[0155] For example, a terminal can determine the RBs allocated by the network device for transmitting PDSCH, and the frequency domain resources corresponding to the downlink subbands in the SBFD time unit, and then determine that the RBs located in the downlink subbands among the RBs allocated by the network device for transmitting PDSCH are RBs that can be used for transmitting PDSCH in both the SBFD and non-SBFD time units; or, it can determine that the RBs located in the downlink subbands among the RBs allocated by the network device for transmitting PDSCH are RBs that can be used for transmitting PDSCH in the SBFD time unit, while the RBs that can be used for transmitting PDSCH in the non-SBFD time unit are RBs allocated for transmitting PDSCH.

[0156] The following embodiments are mainly based on the premise that the RBs used for transmitting PDSCH are the same for SBFD time units and non-SBFD time units in multiple time units, so as to illustrate the technical solution of this disclosure.

[0157] In some embodiments, the indication information indicates that the TBS of the PDSCH transmitted in the SBFD time unit is calculated based on the RB allocated for the transmission of the PDSCH. In this case, the terminal can determine the RB allocated by the network device for the transmission of the PDSCH, and then calculate the TBS of the PDSCH in the SBFD time unit based on the RB allocated by the network device for the transmission of the PDSCH.

[0158] The method for determining the RB allocated by the network device for transmitting PDSCH can be referred to the previous embodiments, and will not be repeated here.

[0159] In some embodiments, the indication information indicates that the TBS of the PDSCH transmitted in the SBFD time unit is calculated based on the RBs available for PDSCH transmission. In this case, the terminal can determine the RBs available for PDSCH transmission. For example, the terminal can determine the RBs allocated by the network device for PDSCH transmission and the frequency domain resources corresponding to the downlink subband in the SBFD time unit, and then determine that the RBs located in the downlink subband among the RBs allocated by the network device for PDSCH transmission are RBs available for PDSCH transmission. Then, the terminal calculates the TBS of the PDSCH in the SBFD time unit based on the RBs available for PDSCH transmission.

[0160] In some embodiments, the indication information indicates that the TBS of a PDSCH transmitted in a non-SBFD time unit is calculated based on the RB allocated for the transmission of the PDSCH. In this case, the terminal can determine the RB allocated by the network device for the transmission of the PDSCH, and then calculate the TBS of the PDSCH in the non-SBFD time unit based on the RB allocated by the network device for the transmission of the PDSCH.

[0161] In some embodiments, the indication information indicates that the TBS of PDSCH transmitted in non-SBFD time units is calculated based on the RBs available for PDSCH transmission. In this case, the terminal can determine the RBs available for PDSCH transmission. For example, the terminal can determine the RBs allocated by the network device for PDSCH transmission and the frequency domain resources corresponding to the downlink subband in the SBFD time unit, and then determine that the RBs located in the downlink subband among the RBs allocated by the network device for PDSCH transmission are RBs available for PDSCH transmission. Then, the terminal calculates the TBS of PDSCH in non-SBFD time units based on the RBs available for PDSCH transmission.

[0162] It should be noted that the above-mentioned instructions can be given separately or in combination.

[0163] For example, the indication information can occupy 1 bit. When the bit value of the indication information is 0, it indicates the TBS of the PDSCH transmitted in the SBFD time unit and the non-SBFD time unit based on the RB allocated for the transmission of the PDSCH; when the bit value of the indication information is 1, it indicates the TBS of the PDSCH transmitted in the SBFD time unit and the non-SBFD time unit based on the RB that can be used to transmit the PDSCH.

[0164] For example, the indication information can be 2 bits. When the bit value of the indication information is 00, it indicates the TBS of the PDSCH transmitted in the SBFD time unit and the non-SBFD time unit based on the RB allocated for the transmission of the PDSCH; when the bit value of the indication information is 01, it indicates the TBS of the PDSCH transmitted in the SBFD time unit and the non-SBFD time unit based on the RB available for the transmission of the PDSCH; when the bit value of the indication information is 10, it indicates the TBS of the PDSCH transmitted in the non-SBFD time unit based on the RB allocated for the transmission of the PDSCH, and the TBS of the PDSCH transmitted in the SBFD time unit based on the RB available for the transmission of the PDSCH; when the bit value of the indication information is 11, it can be used as a reserved information bit.

[0165] The following examples illustrate how the TBS of PDSCH transmitted in different time units is calculated according to predefined rules.

[0166] In some embodiments, the predefined rules include at least one of the following:

[0167] The calculation method for the TBS of PDSCH transmitted in different time units is determined based on the type of PDSCH.

[0168] The calculation method for the TBS of the PDSCH transmitted in different time units is determined based on the type of time unit in which the PDSCH is located.

[0169] Based on the relationship between the frequency domain resources of PDSCH and the downlink sub-bands corresponding to the SFBD time unit, the calculation method of TBS of PDSCH transmitted in the SFBD time unit is determined.

[0170] In some embodiments, the predefined rules include determining how to calculate the TBS of PDSCH transmitted in different time units based on the type of PDSCH.

[0171] In this scenario, network devices can indicate the relationship between the type of PDSCH and the calculation method, or predefined rules can specify the relationship between the type of PDSCH and the calculation method.

[0172] For example, the types of PDSCH can include SPS PDSCH, PDSCH retransmission, and multiple PDSCHs scheduled by a single DCI. In the association, the calculation method for PDSCH retransmission association is Method 2, that is, the TBS of PDSCH is calculated based on the RBs that can be used to transmit PDSCH; the calculation method for SPS PDSCH and multiple PDSCHs scheduled by a single DCI is Method 1, that is, the TBS of PDSCH is calculated based on the RBs allocated for transmitting PDSCH.

[0173] Accordingly, when receiving a PDSCH, if the terminal determines that the type of the PDSCH is a PDSCH retransmission, it can use method two to calculate the TBS of the PDSCH in each time unit occupied by the PDSCH; if the terminal determines that the type of the PDSCH is an SPS PDSCH or multiple PDSCHs scheduled by a single DCI, it can use method one to calculate the TBS of the PDSCH in each time unit occupied by the PDSCH.

[0174] For example, the type of PDSCH can include PDSCHs that need to be received by merging and PDSCHs that do not need to be received by merging. In the association relationship, the calculation method for the association of PDSCHs that need to be received by merging is Method 2, that is, the TBS of the PDSCH is calculated based on the RBs that can be used to transmit the PDSCH; the calculation method for the association of PDSCHs that do not need to be received by merging is Method 1, that is, the TBS of the PDSCH is calculated based on the RBs allocated for transmitting the PDSCH.

[0175] Therefore, when receiving a PDSCH, if the terminal determines that the type of the PDSCH is a PDSCH that needs to be received by merging, it can use method two to calculate the TBS of the PDSCH in each time unit occupied by the PDSCH; if the terminal determines that the type of the PDSCH is a PDSCH that does not need to be received by merging, it can use method one to calculate the TBS of the PDSCH in each time unit occupied by the PDSCH.

[0176] In some embodiments, the predefined rules include determining the calculation method of the TBS of the PDSCH transmitted in different time units based on the type of the time unit in which the PDSCH is located.

[0177] For example, when the time unit where PDSCH is located is the SBFD time unit, the calculation method of PDSCH is Method 2, that is, the TBS of PDSCH is calculated based on the RB that can be used to transmit PDSCH; when the time unit where PDSCH is located is not the SBFD time unit, the calculation method of PDSCH is Method 1, that is, the TBS of PDSCH is calculated based on the RB allocated for transmitting PDSCH.

[0178] In some embodiments, the predefined rules include determining the calculation method of the TBS of the PDSCH transmitted in the SFBD time unit based on the relationship between the frequency domain resources of the PDSCH and the downlink subband corresponding to the SFBD time unit.

[0179] For example, the relationship between the frequency domain resources of PDSCH and the downlink sub-band corresponding to the SFBD time unit includes whether the frequency domain resources of PDSCH exceed the frequency domain resources located outside the downlink sub-band.

[0180] For example, taking the frequency domain resources of the PDSCH as including the RBs allocated for transmitting the PDSCH as an example. In time unit #n, if all the RBs allocated for transmitting the PDSCH are located within the downlink subband, the TBS of the PDSCH can be calculated based on method one in time unit #n; if the RBs allocated for transmitting the PDSCH include RBs located outside the downlink subband in time unit #n, the TBS of the PDSCH can be calculated based on method two in time unit #n.

[0181] In some embodiments, the calculation method further includes: determining that the frequency domain resources of the PDSCH include frequency domain resources located outside the downlink subband, and determining the calculation method of the TBS of the PDSCH transmitted in the SFBD time unit based on the proportion of RBs located outside the downlink subband in the frequency domain resources of the PDSCH to the RBs allocated for transmitting the PDSCH.

[0182] For example, when the frequency domain resources of the PDSCH include frequency domain resources located outside the downlink subband, the proportion of RBs located in the downlink subband within the frequency domain resources of the PDSCH can be determined. If the proportion is relatively low (e.g., below a proportion threshold), the TBS of the PDSCH can be calculated based on method one; if the proportion is relatively high (e.g., above a proportion threshold), the TBS of the PDSCH can be calculated based on method two. The proportion threshold can be indicated by the network device or be predefined.

[0183] In this situation, network devices can adjust the proportional threshold to change the way they calculate the TBS of PDSCH in different time units, which helps to ensure the scheduling flexibility of network devices.

[0184] Moreover, the default transmission method is generally the traditional method, i.e. Method 1. When the proportion is relatively low, using Method 1 has little impact on the transmission performance of PDSCH. Therefore, it is not necessary to change the calculation method to Method 2. Instead, we can continue to use Method 1 to calculate the TBS of PDSCH, which helps to reduce the complexity of the processing logic.

[0185] When the proportion is relatively high, using method one has a significant impact on the transmission performance of PDSCH. Therefore, the second method can be used to calculate the TBS of PDSCH, which is beneficial to ensuring the transmission performance of PDSCH.

[0186] It should be noted that the downlink subband described in the embodiments of this disclosure may include frequency domain resources outside the uplink subband and / or guard band in the frequency domain resources corresponding to the time unit when an uplink subband is configured for a time unit (e.g., downlink time unit, flexible time unit); it may also include the downlink subband configured for a time unit (e.g., uplink time unit, flexible time unit).

[0187] 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.

[0188] In some embodiments, steps S201 and S202 may be performed in an alternate order or simultaneously.

[0189] In some embodiments, step S201 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0190] In some embodiments, step S202 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0191] In some embodiments, other optional implementations described before or after the specification corresponding to FIG2 may be referred to.

[0192] 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.

[0193] In some embodiments, the terms "codebook," "codeword," and "precoding matrix" can be used interchangeably. For example, a codebook can be a collection of one or more codewords / precoding matrices.

[0194] 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".

[0195] In some embodiments, the terms “downlink control information (DCI),” “downlink (DL) assignment,” “DL DCI,” “uplink (UL) grant,” and “UL DCI” can be used interchangeably.

[0196] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" can be used interchangeably, as can terms such as "physical uplink shared channel (PUSCH)" and "UL data".

[0197] 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.

[0198] In some embodiments, terms such as wireless access scheme and waveform can be used interchangeably.

[0199] In some embodiments, the terms “frame”, “radio frame”, “subframe”, “slot”, “sub-slot”, “mini-slot”, “symbol”, “symbol”, and “transmission time interval (TTI)” can be used interchangeably.

[0200] 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.

[0201] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transmit,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0202] Corresponding to the aforementioned embodiments of the calculation method, this disclosure also provides embodiments of the calculation method determination apparatus.

[0203] Figure 3 is a schematic block diagram illustrating a calculation mode determination device according to an embodiment of the present disclosure. For example, the calculation mode determination device can be applied to a terminal. As shown in Figure 3, the calculation mode determination device includes: a receiving module 301 and a processing module 302.

[0204] In some embodiments, the receiving module is configured to receive indication information from a network device; the processing module determines, according to predefined rules or the indication information, how to calculate the transport block size (TBS) of the Physical Downlink Shared Channel (PDSCH) transmitted in different time units; wherein, the different time units include sub-band full-duplex (SBFD) time units and non-SBFD time units.

[0205] In some embodiments, the indication information is further used to indicate at least one of the following: calculating the TBS of the PDSCH transmitted in the SBFD time unit based on the resource block RB allocated for transmitting the PDSCH; calculating the TBS of the PDSCH transmitted in the SBFD time unit based on the RB available for transmitting the PDSCH; calculating the TBS of the PDSCH transmitted in the non-SBFD time unit based on the RB allocated for transmitting the PDSCH; and calculating the TBS of the PDSCH transmitted in the non-SBFD time unit based on the RB available for transmitting the PDSCH.

[0206] In some embodiments, the predefined rules include at least one of the following: determining the calculation method of the TBS of PDSCH transmitted in different time units according to the type of PDSCH; determining the calculation method of the TBS of PDSCH transmitted in different time units according to the type of time unit in which the PDSCH is located; determining the calculation method of the TBS of PDSCH transmitted in the SFBD time unit according to the relationship between the frequency domain resources of the PDSCH and the downlink subband corresponding to the SFBD time unit.

[0207] In some embodiments, the relationship between the frequency domain resources of the PDSCH and the downlink sub-band corresponding to the SFBD time unit includes: whether the frequency domain resources of the PDSCH include frequency domain resources located outside the downlink sub-band.

[0208] In some embodiments, the predefined rule further includes: determining that the frequency domain resources of the PDSCH include frequency domain resources located outside the downlink subband, and determining the calculation method of the TBS of the PDSCH transmitted in the SFBD time unit based on the proportion of RBs located outside the downlink subband in the frequency domain resources of the PDSCH to the RBs allocated for transmitting the PDSCH.

[0209] In some embodiments, the type of PDSCH includes at least one of the following: semi-statically scheduled PDSCH; PDSCH repeated transmission; multiple PDSCHs scheduled by a single downlink control information (DCI); and PDSCHs that need to be received by merging.

[0210] In some embodiments, each of the multiple PDSCHs occupies the same type of time unit.

[0211] In some embodiments, the indication information is carried in at least one of the following: System Information Block (SIB); Radio Resource Control (RRC) message; DCI; Media Access Control Unit (MAC CE).

[0212] In some embodiments, the processing module is further configured to calculate the TBS based on a default method if the indication information is not received.

[0213] Figure 4 is a schematic block diagram illustrating a calculation mode determination device according to an embodiment of the present disclosure. For example, the calculation mode determination device can be applied to a network device. As shown in Figure 4, the calculation mode determination device includes: a processing module 401 and a sending module 402.

[0214] In some embodiments, the processing module is configured to determine, according to predefined rules, the calculation method of the transport block size (TBS) of the physical downlink shared channel (PDSCH) transmitted in different time units; or, the sending module is configured to send indication information to the terminal, the indication information being used to indicate the calculation method of the TBS of the PDSCH transmitted in different time units; wherein, the different time units include sub-band full-duplex (SBFD) time units and non-SBFD time units.

[0215] In some embodiments, the indication information is further used to indicate at least one of the following: calculating the TBS of the PDSCH transmitted in the SBFD time unit based on the resource block RB allocated for transmitting the PDSCH; calculating the TBS of the PDSCH transmitted in the SBFD time unit based on the RB available for transmitting the PDSCH; calculating the TBS of the PDSCH transmitted in the non-SBFD time unit based on the RB allocated for transmitting the PDSCH; and calculating the TBS of the PDSCH transmitted in the non-SBFD time unit based on the RB available for transmitting the PDSCH.

[0216] In some embodiments, the predefined rules include at least one of the following: determining the calculation method of the TBS of PDSCH transmitted in different time units according to the type of PDSCH; determining the calculation method of the TBS of PDSCH transmitted in different time units according to the type of time unit in which the PDSCH is located; determining the calculation method of the TBS of PDSCH transmitted in the SFBD time unit according to the relationship between the frequency domain resources of the PDSCH and the downlink subband corresponding to the SFBD time unit.

[0217] In some embodiments, the relationship between the frequency domain resources of the PDSCH and the downlink sub-band corresponding to the SFBD time unit includes: whether the frequency domain resources of the PDSCH include frequency domain resources located outside the downlink sub-band.

[0218] In some embodiments, the predefined rule further includes: determining that the frequency domain resources of the PDSCH include frequency domain resources located outside the downlink subband, and determining the calculation method of the TBS of the PDSCH transmitted in the SFBD time unit based on the proportion of RBs located outside the downlink subband in the frequency domain resources of the PDSCH to the RBs allocated for transmitting the PDSCH.

[0219] In some embodiments, the type of PDSCH includes at least one of the following: semi-statically scheduled PDSCH; PDSCH repeated transmission; multiple PDSCHs scheduled by a single downlink control information (DCI); and PDSCHs that need to be received by merging.

[0220] In some embodiments, each of the multiple PDSCHs occupies the same type of time unit.

[0221] In some embodiments, the indication information is carried in at least one of the following: System Information Block (SIB); Radio Resource Control (RRC) message; DCI; Media Access Control Unit (MAC CE).

[0222] In some embodiments, the processing module is further configured to calculate the TBS based on a default method when the indication information is not sent to the terminal.

[0223] 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.

[0224] 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.

[0225] 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.

[0226] 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).

[0227] Figure 5A is a schematic diagram of the structure of the communication device 5100 proposed in an embodiment of this disclosure. The communication device 5100 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 5100 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.

[0228] As shown in Figure 5A, the communication device 5100 includes one or more processors 5101. The processor 5101 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 5100 can be used to execute any of the above methods. Optionally, one or more processors 5101 can be used to invoke instructions to cause the communication device 5100 to execute any of the above methods.

[0229] In some embodiments, the communication device 5100 further includes one or more transceivers 5102. When the communication device 5100 includes one or more transceivers 5102, the transceiver 5102 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 5101 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.

[0230] In some embodiments, the communication device 5100 further includes one or more memories 5103 for storing data. Optionally, all or part of the memories 5103 may be located outside the communication device 5100. In optional embodiments, the communication device 5100 may include one or more interface circuits 5104. Optionally, the interface circuits 5104 are connected to the memories 5102, and the interface circuits 5104 can be used to receive data from the memories 5102 or other devices, and can be used to send data to the memories 5102 or other devices. For example, the interface circuits 5104 can read data stored in the memories 5102 and send the data to the processor 5101.

[0231] The communication device 5100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 5100 described in this disclosure is not limited thereto, and the structure of the communication device 5100 may not be limited by FIG. 5A. 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.

[0232] Figure 5B is a schematic diagram of the structure of the chip 5200 proposed in an embodiment of this disclosure. For cases where the communication device 5100 can be a chip or a chip system, the schematic diagram of the chip 5200 shown in Figure 5B can be referred to, but is not limited thereto.

[0233] Chip 5200 includes one or more processors 5201. Chip 5200 is used to perform any of the methods described above.

[0234] In some embodiments, chip 5200 further includes one or more interface circuits 5202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 5200 further includes one or more memories 5203 for storing data. Optionally, all or part of the memories 5203 may be located outside of chip 5200. Optionally, interface circuit 5202 is connected to memory 5203, and interface circuit 5202 can be used to receive data from memory 5203 or other devices, and interface circuit 5202 can be used to send data to memory 5203 or other devices. For example, interface circuit 5202 can read data stored in memory 5203 and send the data to processor 5201.

[0235] In some embodiments, the interface circuit 5202 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 5202 performing the communication steps (e.g., sending and / or receiving) in the above-described method refers to the interface circuit 5202 performing data interaction between the processor 5201, the chip 5200, the memory 5203, or the transceiver device. In some embodiments, the processor 5201 performs at least one of other steps (e.g., steps S201, S202, but not limited thereto).

[0236] 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.

[0237] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 5100, cause the communication device 5100 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.

[0238] This disclosure also provides a program product that, when executed by the communication device 5100, causes the communication device 5100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0239] 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 of determining a computational regime, characterized by, The method is performed by a terminal and comprises: determining, according to a predefined rule, a calculation manner of a transport block size (TBS) of a physical downlink shared channel (PDSCH) transmitted in different time units, or receiving indication information sent by a network device, the indication information being used for indicating a calculation manner of a TBS of a PDSCH transmitted in different time units; wherein the different time units comprise a sub-band full duplex (SBFD) time unit and a non-SBFD time unit.

2. The method of claim 1, wherein, The indication information is further used for indicating at least one of the following: calculating the TBS of the PDSCH transmitted in the SBFD time unit based on resource blocks (RBs) allocated for transmitting the PDSCH; calculating the TBS of the PDSCH transmitted in the SBFD time unit based on RBs available for transmitting the PDSCH; calculating the TBS of the PDSCH transmitted in the non-SBFD time unit based on the RBs allocated for transmitting the PDSCH; calculating the TBS of the PDSCH transmitted in the non-SBFD time unit based on the RBs available for transmitting the PDSCH.

3. The method of claim 1, wherein, The predefined rule comprises at least one of the following: determining the calculation manner of the TBS of the PDSCH transmitted in different time units according to a type of the PDSCH; determining the calculation manner of the TBS of the PDSCH transmitted in different time units according to a type of a time unit in which the PDSCH is located; determining the calculation manner of the TBS of the PDSCH transmitted in the SFBD time unit according to a relationship between frequency domain resources of the PDSCH and a downlink sub-band corresponding to the SFBD time unit.

4. The method of claim 3, wherein, The relationship between the frequency domain resources of the PDSCH and the downlink sub-band corresponding to the SFBD time unit comprises: whether the frequency domain resources of the PDSCH contain frequency domain resources located outside the downlink sub-band.

5. The method of claim 4, wherein, The method further comprises: determining that the frequency domain resources of the PDSCH contain frequency domain resources located outside the downlink sub-band; determining the calculation manner of the TBS of the PDSCH transmitted in the SFBD time unit according to a proportion of RBs located outside the downlink sub-band in the frequency domain resources of the PDSCH in the RBs allocated for transmitting the PDSCH.

6. The method according to any one of claims 1 to 5, characterized in that, The type of the PDSCH comprises at least one of the following: a semi-static scheduled PDSCH; PDSCH repetition transmission; a plurality of PDSCHs scheduled by a single downlink control information (DCI); a PDSCH requiring combined reception.

7. The method of claim 6, wherein, The type of a time unit occupied by each PDSCH in the plurality of PDSCHs is the same.

8. The method according to any one of claims 1 to 7, characterized in that, The indication information is carried in at least one of the following: a system information block (SIB); a radio resource control (RRC) message; DCI; a medium access control control element (MAC CE).

9. A method of determining a computational regime, the method comprising: determining a computational regime based on a number of computational resources available to a computing device. The method is performed by a network device and comprises: determining, according to a predefined rule, a calculation manner of a transport block size (TBS) of a physical downlink shared channel (PDSCH) transmitted in different time units, or sending, to a terminal, indication information used for indicating a calculation manner of a TBS of a PDSCH transmitted in different time units. The different time units include a sub-band full duplex (SBFD) time unit and a non-SBFD time unit.

10. The method of claim 9, wherein, The indication information is further used to indicate at least one of the following: calculating the TBS of the PDSCH transmitted in the SBFD time unit based on resource blocks (RBs) allocated for transmitting the PDSCH; calculating the TBS of the PDSCH transmitted in the SBFD time unit based on RBs available for transmitting the PDSCH; calculating the TBS of the PDSCH transmitted in the non-SBFD time unit based on the RBs allocated for transmitting the PDSCH; calculating the TBS of the PDSCH transmitted in the non-SBFD time unit based on the RBs available for transmitting the PDSCH.

11. The method of claim 9, wherein, The predefined rule includes at least one of the following: determining the calculation manner of the TBS of the PDSCH transmitted in different time units according to the type of the PDSCH; determining the calculation manner of the TBS of the PDSCH transmitted in different time units according to the type of the time unit in which the PDSCH is located; determining the calculation manner of the TBS of the PDSCH transmitted in the SBFD time unit according to the relationship between the frequency domain resource of the PDSCH and a downlink sub-band corresponding to the SBFD time unit.

12. The method of claim 11, wherein, The relationship between the frequency domain resource of the PDSCH and the downlink sub-band corresponding to the SBFD time unit includes: whether the frequency domain resource of the PDSCH contains frequency domain resource located outside the downlink sub-band.

13. The method of claim 12, wherein, The method further includes: determining that the frequency domain resource of the PDSCH contains frequency domain resource located outside the downlink sub-band, and determining the calculation manner of the TBS of the PDSCH transmitted in the SBFD time unit according to the proportion of RBs located outside the downlink sub-band in the RBs allocated for transmitting the PDSCH.

14. The method according to any one of claims 9 to 13, characterized in that, The type of the PDSCH includes at least one of the following: a semi-static scheduled PDSCH; PDSCH repetition transmission; a plurality of PDSCHs scheduled by a single downlink control information (DCI); a PDSCH requiring combined reception.

15. The method of claim 14, wherein, The type of the time unit occupied by each of the plurality of PDSCHs is the same.

16. The method according to any one of claims 9 to 15, characterized in that, The indication information is carried in at least one of the following: a system information block (SIB); a radio resource control (RRC) message; DCI; a medium access control control element (MAC CE).

17. A computing mode determination apparatus, comprising: The apparatus includes: a receiving module configured to receive indication information of a network device; a processing module configured to determine, according to a predefined rule or the indication information, a calculation manner of a transport block size (TBS) of a physical downlink shared channel (PDSCH) transmitted in different time units. The different time units include a sub-band full duplex (SBFD) time unit and a non-SBFD time unit.

18. A computing mode determination apparatus, comprising: The apparatus includes: a processing module configured to determine, according to a predefined rule, a calculation manner of a transport block size (TBS) of a physical downlink shared channel (PDSCH) transmitted in different time units, or a sending module configured to send indication information to a terminal, the indication information being used to indicate the calculation manner of the TBS of the PDSCH transmitted in different time units. The different time units include a sub-band full duplex (SBFD) time unit and a non-SBFD time unit.

19. A terminal, characterized by Comprise: One or more processors; The terminal is configured to perform the calculation method determination method in any one of claims 1 to 8.

20. A network device, comprising: Comprise: One or more processors; The network device is configured to perform the calculation method determination method in any one of claims 9 to 16.

21. A communication system, characterized by The terminal is configured to perform the calculation method determination method in any one of claims 1 to 8, and the network device is configured to perform the calculation method determination method in any one of claims 9 to 16.

22. A storage medium, the storage medium storing instructions, wherein, When the instructions run on the communication device, the communication device is caused to perform the calculation method determination method in any one of claims 1 to 16.

23. A program product, characterized by The program product is executed by the communication device, and the communication device is caused to perform the calculation method determination method in any one of claims 1 to 16.

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