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CN113497692B - A TBS determination method and related equipment - Google Patents

A TBS determination method and related equipment Download PDF

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CN113497692B
CN113497692B CN202010266504.3A CN202010266504A CN113497692B CN 113497692 B CN113497692 B CN 113497692B CN 202010266504 A CN202010266504 A CN 202010266504A CN 113497692 B CN113497692 B CN 113497692B
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resource overhead
overhead
reference resource
parameter
csi
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CN113497692A (en
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彭淑燕
纪子超
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Vivo Mobile Communication Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signalling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path

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Abstract

本发明提供一种TBS的确定方法及相关设备,方法包括:确定第一参考资源开销;根据所述第一参考资源开销确定第一传输块大小TBS,其中,所述第一参考资源开销包括第二级旁链路控制信息SCI的参考资源开销和/或信道状态信息参考信号CSI‑RS的参考资源开销。本发明提供的TBS的确定方法,终端可以确定用于TBS的确定的第一参考资源开销,从而可以保证初传和重传的TBS相同,使得终端可以进行数据的合并,进而提升终端数据传输的可靠性。

Figure 202010266504

The present invention provides a TBS determination method and related equipment, the method includes: determining a first reference resource overhead; determining a first transport block size TBS according to the first reference resource overhead, wherein the first reference resource overhead includes the first reference resource overhead. The reference resource overhead of the secondary sidelink control information SCI and/or the reference resource overhead of the channel state information reference signal CSI-RS. In the method for determining TBS provided by the present invention, the terminal can determine the first reference resource overhead used for determining the TBS, so as to ensure that the TBS of the initial transmission and the retransmission are the same, so that the terminal can combine data, thereby improving the data transmission efficiency of the terminal. reliability.

Figure 202010266504

Description

一种TBS的确定方法及相关设备A TBS determination method and related equipment

技术领域technical field

本发明涉及无线通信技术领域,尤其是涉及一种TBS的确定方法及相关设备。The present invention relates to the technical field of wireless communication, and in particular, to a TBS determination method and related equipment.

背景技术Background technique

在无线通信系统中,终端可以通过旁链路(sidelink,也称为副链路、侧链路或者边链路等)与其他终端直接进行数据传输,而不需要通过网络侧设备(如基站等)。例如,在车联网系统中,车辆的智能车载设备可以通过旁链路与路边行人使用的终端或者其他车辆的智能车载设备进行数据传输,等等。In a wireless communication system, a terminal can directly transmit data with other terminals through a sidelink (also called a secondary link, side link, or side link, etc.) without going through network-side devices (such as base stations, etc.) ). For example, in the Internet of Vehicles system, the intelligent in-vehicle device of the vehicle can transmit data with the terminal used by pedestrians on the roadside or the intelligent in-vehicle device of other vehicles through the side link, and so on.

其中,在终端通过旁链路与接收端进行数据传输的过程中,例如,支持混合自动重传请求(Hybrid Automatic Repeat reQuest,HARQ)的旁链路上传输数据,若初次传输数据失败(即初传),则终端可以重新向接收端传输至少一次相同传输块的数据(即重传),重传的信息可以和初传的信息相同或者不同。但是,终端进行数据初传和重传中的传输块大小(Transport Block Size,TBS)可能不一致,使得初传和重传的数据无法合并,从而导致数据传输失败,进而降低终端通过旁链路传输数据的可靠性。Among them, in the process of data transmission between the terminal and the receiving end through the side link, for example, data is transmitted on the side link that supports Hybrid Automatic Repeat reQuest (HARQ). transmission), the terminal may retransmit the data of the same transmission block to the receiving end at least once (ie, retransmission), and the retransmitted information may be the same as or different from the initially transmitted information. However, the Transport Block Size (TBS) in the initial transmission and retransmission of data by the terminal may be inconsistent, so that the data of the initial transmission and retransmission cannot be combined, resulting in data transmission failure, which in turn reduces the transmission of the terminal through the side link. Data reliability.

发明内容SUMMARY OF THE INVENTION

本发明实施例提供一种TBS的确定方法及相关设备,以解决目前终端通过旁链路传输数据的可靠性低的问题。Embodiments of the present invention provide a method for determining TBS and related devices, so as to solve the problem of low reliability of current terminals transmitting data through side links.

为了解决上述技术问题,本发明是这样实现的:In order to solve the above-mentioned technical problems, the present invention is achieved in this way:

第一方面,本发明实施例提供一种TBS的确定方法,应用于终端,包括:In a first aspect, an embodiment of the present invention provides a method for determining TBS, applied to a terminal, including:

确定第一参考资源开销;determining the first reference resource overhead;

根据所述第一参考资源开销,确定第一传输块大小TBS;determining a first transport block size TBS according to the first reference resource overhead;

其中,所述第一参考资源开销包括第二级旁链路控制信息SCI的参考资源开销和/或信道状态信息参考信号CSI-RS的参考资源开销。Wherein, the first reference resource overhead includes the reference resource overhead of the second-level sidelink control information SCI and/or the reference resource overhead of the channel state information reference signal CSI-RS.

第二方面,本发明实施例还提供一种终端,包括:In a second aspect, an embodiment of the present invention further provides a terminal, including:

第一确定模块,用于确定第一参考资源开销;a first determining module, configured to determine the first reference resource overhead;

第二确定模块,用于根据所述第一参考资源开销,确定第一TBS;a second determining module, configured to determine the first TBS according to the first reference resource overhead;

其中,所述第一参考资源开销包括第二级SCI的参考资源开销和/或CSI-RS的参考资源开销。Wherein, the first reference resource overhead includes the reference resource overhead of the second-level SCI and/or the reference resource overhead of the CSI-RS.

第三方面,本发明实施例还提供一种终端,包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现第一方面所述的TBS的确定方法中的步骤。In a third aspect, an embodiment of the present invention further provides a terminal, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, where the computer program is executed by the processor When implementing the steps in the method for determining the TBS described in the first aspect.

第四方面,本发明实施例还提供一种计算机可读存储介质,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现第一方面所述的TBS的确定方法中的步骤。In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the determination of the TBS described in the first aspect is realized. steps in the method.

本发明实施例中,确定第一参考资源开销;根据所述第一参考资源开销确定第一传输块大小(Transport Block Size,TBS),其中,所述第一参考资源开销包括第二级旁链路控制信息(Sidelink Control Information,SCI)的参考资源开销和/或信道状态信息参考信号(Channel State Information Reference Signal,CSI-RS)的参考资源开销。这样,终端可以确定用于TBS的确定的第一参考资源开销,从而可以保证初传和重传的TBS相同,使得终端可以进行数据的合并,进而提升终端数据传输的可靠性。In this embodiment of the present invention, a first reference resource overhead is determined; a first transport block size (Transport Block Size, TBS) is determined according to the first reference resource overhead, where the first reference resource overhead includes a second-level side chain Reference resource overhead of sidelink control information (Sidelink Control Information, SCI) and/or reference resource overhead of channel state information reference signal (Channel State Information Reference Signal, CSI-RS). In this way, the terminal can determine the first reference resource overhead used for determining the TBS, thereby ensuring the same TBS for initial transmission and retransmission, so that the terminal can combine data, thereby improving the reliability of terminal data transmission.

附图说明Description of drawings

图1是本发明实施例提供的网络系统的结构示意图;1 is a schematic structural diagram of a network system provided by an embodiment of the present invention;

图2是本发明实施例提供的TBS的确定方法的流程示意图;2 is a schematic flowchart of a method for determining TBS provided by an embodiment of the present invention;

图3是本发明实施例提供的终端的结构示意图;3 is a schematic structural diagram of a terminal provided by an embodiment of the present invention;

图4是本发明实施例提供的终端的硬件结构示意图。FIG. 4 is a schematic diagram of a hardware structure of a terminal provided by an embodiment of the present invention.

具体实施方式Detailed ways

下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

本申请的说明书和权利要求书中的术语“包括”以及它的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。此外,说明书以及权利要求中使用“和/或”表示所连接对象的至少其中之一,例如A和/或B,表示包含单独A,单独B,以及A和B都存在三种情况。The term "comprising" and any variations thereof in the description and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to the explicit Those steps or units are explicitly listed, but may include other steps or units not expressly listed or inherent to the process, method, product or apparatus. In addition, the use of "and/or" in the description and the claims indicates at least one of the connected objects, such as A and/or B, indicating that there are three cases including A alone, B alone, and both A and B.

在本发明实施例中,“示例性的”或者“例如”等词用于表示作例子、例证或说明。本发明实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言,使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as an example, illustration or illustration. Any embodiments or designs described as "exemplary" or "such as" in the embodiments of the present invention should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present the related concepts in a specific manner.

下面结合附图介绍本发明的实施例。本发明提供的实施例可以应用于无线通信系统中。该无线通信系统可以为5G系统,或者演进型长期演进(Evolved Long TermEvolution,eLTE)系统,或者后续演进通信系统。Embodiments of the present invention will be described below with reference to the accompanying drawings. The embodiments provided by the present invention can be applied to a wireless communication system. The wireless communication system may be a 5G system, or an evolved long term evolution (Evolved Long Term Evolution, eLTE) system, or a subsequent evolution communication system.

图1是本发明实施例提供的一种网络系统的结构图,如图1所示,包括第一终端11、第二终端12、网络侧设备13,其中,第一终端11和第二终端12可以是移动通信设备,例如:可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(personal digital assistant,简称PDA)、移动上网装置(Mobile InternetDevice,MID)或可穿戴式设备(Wearable Device)等,也可以是车辆的智能车载设备、路边单元(Road Side Unit,RSU)或者基础设施等。需要说明的是,在本发明实施例中并不限定终端11的具体类型。FIG. 1 is a structural diagram of a network system provided by an embodiment of the present invention. As shown in FIG. 1 , it includes a first terminal 11 , a second terminal 12 , and a network-side device 13 , wherein the first terminal 11 and the second terminal 12 It can be a mobile communication device, for example, it can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a personal digital assistant (PDA for short), a mobile Internet Device (MID) Or a wearable device (Wearable Device), etc., or a smart in-vehicle device of a vehicle, a roadside unit (Road Side Unit, RSU), or infrastructure. It should be noted that, in the embodiment of the present invention, the specific type of the terminal 11 is not limited.

上述第一终端11与第二终端12之间可以通过旁链路(sidelink,也称为副链路、侧链路或者边链路等)直接进行数据传输(如第一终端11可以是数据发送端,第二终端12可以是数据接收端;或者,也可以是第一终端11是第一数据接收端,而第二终端12是数据发送端),例如,在上述第一终端11为车辆的智能车载设备的情况下,该车辆的智能车载设备可以与第二终端12直接进行数据传输,第二终端12可以是其他车辆的智能车载设备、路边单元或者基础设施等。Data transmission may be performed directly between the first terminal 11 and the second terminal 12 through a sidelink (also called a side link, side link, or side link, etc.) (for example, the first terminal 11 may transmit data. terminal, the second terminal 12 may be the data receiving terminal; or, the first terminal 11 may be the first data receiving terminal, and the second terminal 12 may be the data transmitting terminal), for example, in the above-mentioned first terminal 11 is the vehicle In the case of an intelligent vehicle-mounted device, the vehicle's intelligent vehicle-mounted device can directly perform data transmission with the second terminal 12, and the second terminal 12 can be an intelligent vehicle-mounted device, roadside unit, or infrastructure of other vehicles.

另外,上述网络侧设备13可以是5G网络侧设备(例如:gNB、5G NR NB),或者可以是4G网络侧设备(例如:eNB),或者可以是3G网络侧设备(例如:NB),或者后续演进通信系统中的网络侧设备,等等,需要说明的是,在本发明实施例中并不限定网络侧设备13的具体类型。In addition, the above-mentioned network-side device 13 may be a 5G network-side device (eg, gNB, 5G NR NB), or may be a 4G network-side device (eg, eNB), or may be a 3G network-side device (eg, NB), or The network side device in the subsequent evolved communication system, etc. It should be noted that the specific type of the network side device 13 is not limited in the embodiment of the present invention.

请参见图2,图2是本实施例提供的一种TBS的确定方法的流程示意图,应用于终端,如图2所示,上述TBS的确定方法包括如下步骤:Please refer to FIG. 2. FIG. 2 is a schematic flowchart of a method for determining a TBS provided by this embodiment, which is applied to a terminal. As shown in FIG. 2, the above-mentioned method for determining a TBS includes the following steps:

步骤201、确定第一参考资源开销;Step 201, determining a first reference resource overhead;

步骤202、根据所述第一参考资源开销,确定第一传输块大小(Transport BlockSize,TBS);Step 202: Determine a first transport block size (Transport BlockSize, TBS) according to the first reference resource overhead;

其中,所述第一参考资源开销包括第二级旁链路控制信息(Sidelink ControlInformation,SCI)的参考资源开销和/或信道状态信息参考信号(Channel StateInformation Reference Signal,CSI-RS)的参考资源开销。Wherein, the first reference resource overhead includes reference resource overhead of second-level sidelink control information (Sidelink Control Information, SCI) and/or reference resource overhead of channel state information reference signal (Channel State Information Reference Signal, CSI-RS) .

需要说明的是,由于终端在通过旁链路(Sidelink)进行数据传输的过程中,如在支持混合自动重传请求(Hybrid Automatic Repeat reQuest,HARQ)的旁链路上传输数据,需要保证初传和重传时确定的TBS相同,接收端(如其他终端等)在接收到初传数据和重传数据时,才能对初传数据和重传数据进行合并,以此获得增益,从而实现数据的正常传输。It should be noted that, since the terminal transmits data through the sidelink (Sidelink), for example, transmits data on the sidelink that supports Hybrid Automatic Repeat reQuest (HARQ), it is necessary to ensure the initial transmission. The same as the TBS determined during retransmission, the receiving end (such as other terminals, etc.) can only combine the initial transmission data and the retransmission data when receiving the initial transmission data and the retransmission data, so as to obtain the gain and realize the data transmission. normal transmission.

这里,终端可以确定用于TBS的确定的第一参考资源开销,从而可以保证初传和重传的TBS相同,使得终端可以进行数据的合并,进而提升终端数据传输的可靠性。Here, the terminal can determine the first reference resource overhead used for determining the TBS, so as to ensure that the TBS of the initial transmission and the retransmission are the same, so that the terminal can combine data, thereby improving the reliability of the terminal data transmission.

另外,终端在通过旁链路进行数据传输的过程中,TBS是根据可用的资源数目确定的,而可用的资源数目又是根据总资源数目减去资源开销计算得到,该资源开销包括SCI的资源开销和CSI-RS的资源开销中的至少一项,故上述第一参考资源开销包括SCI的参考资源开销和CSI-RS的参考资源开销中的至少一项。In addition, when the terminal performs data transmission through the side link, the TBS is determined according to the number of available resources, and the number of available resources is calculated according to the total number of resources minus the resource overhead, which includes the resources of the SCI At least one item of overhead and resource overhead of CSI-RS, so the above-mentioned first reference resource overhead includes at least one item of reference resource overhead of SCI and reference resource overhead of CSI-RS.

当然,上述资源开销还可以包括:自动增益控制(Automatic Gain Control,AGC)的资源开销、保护周期(Guard Period,GP)的资源开销、物理旁链路反馈信道(PhysicalSidelink Discovery Feedback channel,PSFCH)的资源开销、解调参考信号(Demodulation Reference Signal,DMRS)的资源开销、物理旁链路共享信道(PhysicalSidelink Shared Channel,PSCCH)的资源开销、以及相位跟踪参考信号(Phase TrackingReference Signal,PTRS)的资源开销等中的至少一项,在此并不进行限定。Of course, the above-mentioned resource overhead may also include: resource overhead of Automatic Gain Control (AGC), resource overhead of Guard Period (GP), and resource overhead of Physical Sidelink Discovery Feedback channel (PSFCH). Resource overhead, Demodulation Reference Signal (DMRS) resource overhead, Physical Sidelink Shared Channel (PSCCH) resource overhead, and Phase Tracking Reference Signal (PTRS) resource overhead At least one of the above is not limited here.

本实施例中,上述确定第一参考资源开销,可以是终端根据预设规则获取得到上述第一参考资源开销,该预设规则可以是协议定义、网络侧配置或者终端预配置等。In this embodiment, the above-mentioned determination of the first reference resource overhead may be that the terminal obtains the above-mentioned first reference resource overhead according to a preset rule, and the preset rule may be a protocol definition, a network side configuration, or a terminal pre-configuration.

其中,终端在通过旁链路进行数据传输的过程中,旁链路支持两级的SCI配置,即在物理旁链路控制信道(Physical Sidelink Control Channel,PSCCH)上携带第一级SCI,在物理旁链路共享信道(Physical Sidelink Shared Channel,PSSCH)上携带第二级SCI,而第二级SCI所占用的资源粒子(Resource Elements,REs)即资源开销可以根据TBS和beta值确定,即在所述第一参考资源开销包括第二级SCI的参考资源开销的情况下,所述第二级SCI的参考资源开销可以根据第一beta值和参考TBS确定。Among them, in the process of data transmission through the side link, the side link supports two-level SCI configuration, that is, the first level SCI is carried on the physical sidelink control channel (Physical Sidelink Control Channel, PSCCH). The second-level SCI is carried on the Physical Sidelink Shared Channel (PSSCH), and the resource overhead (Resource Elements, REs) occupied by the second-level SCI can be determined according to the TBS and beta values. In the case where the first reference resource overhead includes the reference resource overhead of the second-level SCI, the reference resource overhead of the second-level SCI may be determined according to the first beta value and the reference TBS.

具体地,上述第二级SCI的参考资源开销根据第一beta值和参考TBS确定,可以是根据如下公式(1)计算得到:Specifically, the reference resource overhead of the second-level SCI is determined according to the first beta value and the reference TBS, and can be calculated according to the following formula (1):

Figure BDA0002441436640000051
Figure BDA0002441436640000051

这里,(OSCI2+LSCI2)表示第二级SCI的大小;Here, (O SCI2 +L SCI2 ) represents the size of the second-level SCI;

Figure BDA0002441436640000052
表示上述第一beta值;
Figure BDA0002441436640000052
represents the above-mentioned first beta value;

Figure BDA0002441436640000053
表示可用资源数目,且该可用资源数目可以根据解调参考信号(Demodulation Reference Signal,DMRS)的资源开销确定;
Figure BDA0002441436640000053
Indicates the number of available resources, and the number of available resources can be determined according to the resource overhead of a demodulation reference signal (Demodulation Reference Signal, DMRS);

Figure BDA0002441436640000054
表示上述参考TBS;
Figure BDA0002441436640000054
Indicates the above referenced TBS;

α表示网络侧配置的值。α represents a value configured on the network side.

需要说明的是,上述

Figure BDA0002441436640000055
和上述
Figure BDA0002441436640000056
对应的DMRS的资源开销可以是不同。It should be noted that the above
Figure BDA0002441436640000055
and the above
Figure BDA0002441436640000056
The resource overhead of the corresponding DMRS may be different.

另外,在旁链路中,上述第一级SCI和上述第二级SCI分别对应不同的SCI格式(format),即可以是协议定义旁链路中不同的SCI格式的SCI分别为上述第一级SCI和上述第二级SCI;或者,也可以是定义旁链路中不同的SCI格式的SCI分别为SCI format 0-1(即上述第一级SCI),以及,SCI format 0-2或者SCI format 0-2-x(即上述第二级SCI)。In addition, in the side link, the above-mentioned first-level SCI and the above-mentioned second-level SCI respectively correspond to different SCI formats (formats), that is, the SCIs of different SCI formats in the side-link can be defined by the protocol respectively as the above-mentioned first-level SCI. SCI and the above-mentioned second-level SCI; alternatively, the SCIs that define different SCI formats in the side link are SCI format 0-1 (that is, the above-mentioned first-level SCI), and SCI format 0-2 or SCI format. 0-2-x (ie the above-mentioned second-level SCI).

在一些实施方式中,上述第一beta值可以包括如下至少一项:In some embodiments, the above-mentioned first beta value may include at least one of the following:

第一级SCI中指示的beta值;the beta value indicated in the first-level SCI;

根据第一参数和第一映射关系确定的beta值,其中,所述第一映射关系为参数与beta值的映射关系;The beta value determined according to the first parameter and the first mapping relationship, wherein the first mapping relationship is the mapping relationship between the parameter and the beta value;

协议预定义的值;Protocol predefined values;

无线资源控制(Radio Resource Control,RRC)或者媒体接入控制控制单元MACCE配置的值,或者下行控制信息DCI指示的值;A value configured by Radio Resource Control (Radio Resource Control, RRC) or a medium access control control unit MACCE, or a value indicated by downlink control information DCI;

与调制和编码方案(Modulation and Coding Scheme,MCS)关联的值。The value associated with the Modulation and Coding Scheme (MCS).

其中,上述第一beta值可以为第一级SCI中指示的beta值,即终端通过实际的beta值计算上述第二级SCI的参考资源开销,从而使计算得到的第二级SCI的参考资源开销更合理。The first beta value may be the beta value indicated in the first-level SCI, that is, the terminal calculates the reference resource overhead of the second-level SCI based on the actual beta value, so that the calculated reference resource overhead of the second-level SCI is calculated. more reasonable.

上述实施方式中,上述第一参数可以包括第二级SCI的格式、第一级SCI中的固定码点或者第二级SCI的传输类型,等等;上述第一映射关系可以是协议定义或者配置(网络侧配置或者终端预配置)的参数与beta值的映射关系。In the above-mentioned embodiment, the above-mentioned first parameter may include the format of the second-level SCI, the fixed code point in the first-level SCI, or the transmission type of the second-level SCI, etc.; the above-mentioned first mapping relationship may be a protocol definition or configuration. The mapping relationship between parameters (configured on the network side or pre-configured by the terminal) and beta values.

其中,上述第一beta值可以是根据第一参数和第一映射关系确定的beta值,例如,可以是协议约定或者配置第二级SCI的传输类型1(如第二级SCI的传输类型1用于调度单播(unicast)或者组播类型groupcast type 2)与beta值1存在映射关系,若上述第一参数包括上述第二级SCI的传输类型1,则上述第一beta值为上述beta值1,等等。Wherein, the above-mentioned first beta value may be a beta value determined according to the first parameter and the first mapping relationship, for example, may be a protocol agreement or configure the transmission type 1 of the second-level SCI (for example, the transmission type 1 of the second-level SCI uses There is a mapping relationship between scheduling unicast (unicast) or multicast type groupcast type 2) and beta value 1. If the above-mentioned first parameter includes the transmission type 1 of the above-mentioned second-level SCI, the above-mentioned first beta value is the above-mentioned beta value 1. ,and many more.

或者,上述第一beta值也可以是协议定义的值;或者,还可以是由RRC或者MAC CE配置的值或者DCI指示的值。Alternatively, the above-mentioned first beta value may also be a value defined by a protocol; or, it may also be a value configured by RRC or MAC CE or a value indicated by DCI.

需要说明的是,在上述第一beta值是由RRC或者MAC CE配置的值或者DCI指示的值的情况下,上述第一beta值可以是在每个资源池设计模式(Resource Pool)中配置的值;以及,在上述第一beta值是DCI指示的值的情况下,上述DCI在调度同一个传输块(TB)传输时指示的第一beta值相同。It should be noted that, in the case where the above-mentioned first beta value is a value configured by RRC or MAC CE or a value indicated by DCI, the above-mentioned first beta value may be configured in each resource pool design mode (Resource Pool) and, in the case that the above-mentioned first beta value is the value indicated by the DCI, the above-mentioned first beta value indicated by the above-mentioned DCI when scheduling transmission of the same transport block (TB) is the same.

另外,上述第一beta值还可以是MCS关联的值,具体地,由于第二级SCI可以采用正交相移键控(Quadrature Phase Shift Keying,QPSK)编码,而传输的数据可以是根据MCS指示编码,考虑数据TBS使用的MCS对应的调制阶数Qm与第二级SCI使用的调制阶数2可能不同,对第二级SCI的参考资源开销的会产生影响,即第一beta值可以是与MCS对应的调制阶数Qm相关。例如,确定第二级SCI的参考资源开销所采用的第一beta值为beta值(可以是协议定义的值、第一级SCI中的值、RRC或者MAC CE配置的值或者DCI指示的值,等等)与二分之一Qm的乘积(即beta·(Qm/2)),等等。In addition, the above-mentioned first beta value can also be a value associated with the MCS. Specifically, since the second-level SCI can use Quadrature Phase Shift Keying (Quadrature Phase Shift Keying, QPSK) encoding, and the transmitted data can be based on the MCS instruction Coding, considering that the modulation order Q m corresponding to the MCS used by the data TBS may be different from the modulation order 2 used by the second-level SCI, which will have an impact on the reference resource overhead of the second-level SCI, that is, the first beta value can be It is related to the modulation order Q m corresponding to the MCS. For example, the first beta value used to determine the reference resource overhead of the second-level SCI is the beta value (which may be a value defined by a protocol, a value in the first-level SCI, a value configured by RRC or MAC CE, or a value indicated by DCI, etc.) multiplied by one-half Q m (i.e. beta·(Q m /2)), and so on.

在一些实施方式中,上述参考TBS可以根据第二参数确定,其中,所述第二参数包括如下至少一项:In some embodiments, the above reference TBS may be determined according to a second parameter, wherein the second parameter includes at least one of the following:

调制阶数Qmmodulation order Q m ;

码率R;code rate R;

PSSCH的参考符号数目NsymbThe number of reference symbols N symb of PSSCH;

第一级SCI指示的频域资源大小NPRBThe frequency domain resource size N PRB indicated by the first-level SCI;

物理资源块(Physical Resource Block,PRB)中的子载波数NSC,例如,NSC为12;The number of subcarriers N SC in a physical resource block (Physical Resource Block, PRB), for example, N SC is 12;

调制和编码方案MCS。Modulation and coding scheme MCS.

需要说明的是,上述PSSCH的参考符号可以是协议定义的用于计算TBS的符号。It should be noted that, the reference symbol of the PSSCH may be a symbol defined by the protocol and used for calculating the TBS.

另外,在上述参考TBS根据PSSCH的参考符号数目确定的情况下,可以是数据传输过程中的所有时隙均减去PSFCH的资源开销,或者所有时隙均不考虑PSFCH的资源开销。In addition, when the above reference TBS is determined according to the number of reference symbols of the PSSCH, the resource overhead of the PSFCH may be subtracted from all time slots in the data transmission process, or the resource overhead of the PSFCH may not be considered for all the time slots.

本实施方式中,上述参考TBS根据上述第二参数确定,可以是根据协议定义或者配置的计算公式计算得到上述参考TBS。In this embodiment, the reference TBS is determined according to the second parameter, and the reference TBS may be obtained by calculation according to a calculation formula defined or configured in a protocol.

具体地,上述参考TBS为:所述调制阶数Qm、所述码率R、所述PSSCH的参考符号数目Nsymb、每个PRB中的子载波数NSC以及所述频域资源大小NPRB的乘积,即上述参考TBS根据如下公式(2)计算得到。Specifically, the above reference TBS is: the modulation order Q m , the code rate R, the number of reference symbols N symb of the PSSCH, the number of subcarriers N SC in each PRB, and the frequency domain resource size N The product of PRB , that is, the above reference TBS is calculated according to the following formula (2).

TBS=Qm·R·Nsymb·NPRB·NSC (2)TBS = Q m · R · N symb · N PRB · N SC (2)

或者,所述参考TBS为:所述码率R、所述PSSCH的参考符号数目Nsymb、每个PRB中的子载波数NSC以及所述频域资源大小NPRB的乘积的整数倍,具体地,上述整数倍可以是两倍,即上述参考TBS由如下公式(3)计算得到。Alternatively, the reference TBS is an integer multiple of the code rate R, the number of reference symbols N symb of the PSSCH, the number of subcarriers N SC in each PRB, and the product of the frequency domain resource size N PRB , specifically Alternatively, the above-mentioned integer multiple may be twice, that is, the above-mentioned reference TBS is calculated by the following formula (3).

TBS=(Qm·R·Nsymb·NPRB)/(Qm/2)·NSCTBS=(Q m · R · N symb · N PRB )/(Q m /2) · NSC

=2·R·Nsymb·NPRB·NSC (3)=2 R N symb N PRB N SC (3)

需要说明的是,由上述公式(1)可知,上述第二级SCI的参考资源还与可用资源数目关联,该可用资源数目为公式(1)中

Figure BDA0002441436640000081
Figure BDA0002441436640000082
的至少一项中的
Figure BDA0002441436640000083
It should be noted that, as can be seen from the above formula (1), the reference resources of the above-mentioned second-level SCI are also associated with the number of available resources, and the number of available resources is in formula (1).
Figure BDA0002441436640000081
and
Figure BDA0002441436640000082
at least one of
Figure BDA0002441436640000083

在一些实施方式中,第二级SCI的参考资源开销可以根据所述第一beta值、参考TBS和可用资源数目确定,其中,所述可用资源数目根据DMRS的参考资源开销确定。In some embodiments, the reference resource overhead of the second-level SCI may be determined according to the first beta value, the reference TBS, and the number of available resources, wherein the number of available resources is determined according to the reference resource overhead of the DMRS.

这里,第二级SCI的参考资源开销根据beta值、参考TBS和可用资源数目确定,从而使确定的第二级SCI的参考资源开销更合适,进一步提升通过旁链路进行数据传输的可靠性。Here, the reference resource overhead of the second-level SCI is determined according to the beta value, the reference TBS, and the number of available resources, so that the determined reference resource overhead of the second-level SCI is more suitable, and the reliability of data transmission through the side link is further improved.

需要说明的是,上述DMRS的参考资源开销可以是协议定义的用于计算TBS的资源开销;另外,上述DMRS的参考资源开销可以是根据协议定义或者配置的方式获取到的资源开销。It should be noted that the reference resource overhead of the DMRS may be the resource overhead defined by the protocol for calculating the TBS; in addition, the reference resource overhead of the DMRS may be the resource overhead obtained according to the protocol definition or configuration.

在一些实施方式中,上述DMRS的参考资源开销根据如下至少一项确定:In some embodiments, the reference resource overhead of the above-mentioned DMRS is determined according to at least one of the following:

协议预定义的符号数目;The number of symbols predefined by the protocol;

RRC配置的符号数目;The number of symbols configured by RRC;

预定义的规则;predefined rules;

DMRS的参考符号数目,其中,所述DMRS的参考符号数目根据DMRS的样式获取,所述DMRS的样式由第一级SCI指示或PSCCH指示或RRC配置。The number of reference symbols of the DMRS, where the number of reference symbols of the DMRS is obtained according to the pattern of the DMRS, and the pattern of the DMRS is indicated by the first-level SCI or PSCCH or RRC configuration.

这里,终端可以通过上述任意一种方式确定上述DMRS的参考资源开销,从而使确定DMRS的参考资源的方式灵活。Here, the terminal may determine the reference resource overhead of the DMRS in any of the foregoing manners, so that the manner of determining the reference resource of the DMRS is flexible.

本实施方式中,上述DMRS的参考资源开销可以是根据上述协议预定义的符号数目确定;或者,也可以是根据RRC配置的符号数目确定,其中,该RRC配置的符号数目可以是RRC在每个资源池中由网络侧配置或者终端预配置的符号数目。In this embodiment, the reference resource overhead of the above DMRS may be determined according to the number of symbols predefined by the above protocol; or, may also be determined according to the number of symbols configured by the RRC, where the number of symbols configured by the RRC may be the number of symbols configured by the RRC in each The number of symbols in the resource pool configured by the network side or pre-configured by the terminal.

另外,上述DMRS可以是根据预定义的规则确定,具体地,在DMRS的参考资源开销根据预定义的规则确定的情况下,所述DMRS的参考资源开销可以包括:在资源池中的每个时隙都存在物理旁链路反馈信道PSFCH的情况下对应的DMRS的参考资源开销;或者,在资源池中的每个时隙都不存在PSFCH的情况下对应的DMRS的参考资源开销,从而可以避免PSFCH会导致初传和重传不同的DMRS的参考资源开销值的发生。In addition, the above-mentioned DMRS may be determined according to a predefined rule. Specifically, in the case where the reference resource overhead of the DMRS is determined according to the predefined rule, the reference resource overhead of the DMRS may include: at each time in the resource pool The reference resource overhead of the corresponding DMRS in the case that the physical sidelink feedback channel PSFCH exists in all slots; or, the reference resource overhead of the corresponding DMRS in the case that there is no PSFCH in each time slot in the resource pool, so as to avoid The PSFCH may cause the occurrence of different DMRS reference resource overhead values for initial transmission and retransmission.

或者,也可以协议定义或者配置(如网络侧配置或者终端预配置)参考的PSFCH符号数目对应的DMRS的参考资源开销,具体地,在所述DMRS的参考资源开销根据预定义的规则确定的情况下,所述DMRS的参考资源开销可以为:在资源中最后N个参考符号数不可用于DMRS的情况下对应的DMRS的参考资源开销,其中,N-1为参考的PSFCH开销。Alternatively, the reference resource overhead of the DMRS corresponding to the number of PSFCH symbols referenced by the protocol definition or configuration (such as network side configuration or terminal pre-configuration) may also be defined. Specifically, in the case where the reference resource overhead of the DMRS is determined according to a predefined rule In the following, the reference resource overhead of the DMRS may be: the reference resource overhead of the corresponding DMRS in the case that the last N reference symbols in the resource cannot be used for the DMRS, wherein N-1 is the reference PSFCH overhead.

需要说明的是,上述资源中最后一个符号是起保护作用的符号,其可以不作为PSFCH的资源开销中的开销。It should be noted that the last symbol in the above resource is a symbol that plays a protective role, which may not be used as overhead in the resource overhead of the PSFCH.

当然,上述DMRS的参考资源开销也可以是根据DMRS的参考符号数目确定,该DMRS的参考符号数目可以是由第一级SCI指示或PSCCH指示或RRC配置的DMRS的样式获取。Certainly, the reference resource overhead of the above DMRS may also be determined according to the number of reference symbols of the DMRS, and the number of reference symbols of the DMRS may be obtained from the first-level SCI indication or PSCCH indication or the DMRS pattern configured by RRC.

需要说明的是,上述第一级SCI指示或PSCCH指示或RRC配置的DMRS的样式可以是协议定义或者配置(如网络侧配置或者终端预配置)的映射规则。例如,若上述第一级SCI指示4符号的DMRS,则计算第二级SCI的参考资源开销时,DMRS的参考资源开销为3符号,等等。It should be noted that, the above-mentioned first-level SCI indication or PSCCH indication or RRC-configured DMRS pattern may be a protocol-defined or configured (eg, network-side configuration or terminal pre-configured) mapping rule. For example, if the above-mentioned first-level SCI indicates a DMRS of 4 symbols, when calculating the reference resource overhead of the second-level SCI, the reference resource overhead of the DMRS is 3 symbols, and so on.

另外,由于上述

Figure BDA0002441436640000091
即可用资源数目定义的是可用于PSSCH传输的资源数目,若初传和重传的DMRS的资源开销不一致,将会导致用于计算的PSSCH传输的资源数目不一致,从而导致计算第二级SCI的参考资源开销不一致,进而会导致出现初传和重传计算所得的TBS不同的情况。因此,可以通过设置在初传和重传计算所使用的DMRS的参考资源开销相同,实现初传和重传计算所得的TBS相同。In addition, due to the above
Figure BDA0002441436640000091
That is, the number of available resources defines the number of resources that can be used for PSSCH transmission. If the resource overhead of the DMRS for initial transmission and retransmission is inconsistent, the number of resources used for PSSCH transmission for calculation will be inconsistent, resulting in the calculation of the second-level SCI. The reference resource overhead is inconsistent, which in turn leads to a situation where the TBS calculated by the initial transmission and the retransmission are different. Therefore, by setting the reference resource overhead of the DMRS used in the calculation of the initial transmission and the retransmission to be the same, the same TBS obtained by the calculation of the initial transmission and the retransmission can be realized.

在一些实施方式中,上述第二级SCI的参考资源开销可以与MCS关联,例如,可以是在上述公式(1)中增加MCS对应的Qm对第二级SCI的参考资源开销的计算的影响。当然,上述第二级SCI的参考资源开销也可以与MCS不关联,在此并不进行限定。In some embodiments, the reference resource overhead of the second-level SCI may be associated with the MCS, for example, it may be the effect of adding Qm corresponding to the MCS in the above formula (1) on the calculation of the reference resource overhead of the second-level SCI . Of course, the reference resource overhead of the second-level SCI may also be not associated with the MCS, which is not limited herein.

本实施例中,除上述第一参考资源开销为根据上述beta值和参考TBS确定的第二级SCI的参考资源开销之外,上述第一参考资源开销还可以是根据其他方式确定的第二级SCI的参考资源开销和CSI-RS的参考资源开销。In this embodiment, in addition to the aforementioned first reference resource overhead being the reference resource overhead of the second-level SCI determined according to the aforementioned beta value and the reference TBS, the aforementioned first reference resource overhead may also be the second-level SCI determined according to other methods Reference resource overhead of SCI and reference resource overhead of CSI-RS.

在一些实施方式中,所述第一参考资源开销根据第三参数与第二映射关系确定,所述第二映射关系为参数与资源开销的映射关系。In some embodiments, the first reference resource overhead is determined according to a third parameter and a second mapping relationship, where the second mapping relationship is a mapping relationship between parameters and resource overheads.

具体地,可以是上述第二级SCI的参考资源开销根据上述第三参数与第二映射关系确定;或者,也可以是CSI-RS的参考资源开销根据第三参数与第二映射关系确定;或者,还可以是第二级SCI的参考资源开销和CSI-RS的参考资源开销根据第三参数与第二映射关系确定。Specifically, the reference resource overhead of the second-level SCI may be determined according to the third parameter and the second mapping relationship; or, the reference resource overhead of the CSI-RS may be determined according to the third parameter and the second mapping relationship; or , or the reference resource overhead of the second-level SCI and the reference resource overhead of the CSI-RS are determined according to the third parameter and the second mapping relationship.

需要说明的是,在上述第一参考资源开销包括上述第二级SCI的参考资源开销和CSI-RS的参考资源开销的情况下,上述第二级SCI的参考资源可以是根据上述beta值和参考TBS确定,或者根据beta值、参考TBS和上述可用资源数目确定,而上述CSI-RS的参考资源开销根据第三参数与第二映射关系确定;或者,也可以是第二级SCI的参考资源开销和CSI-RS的参考资源开销均根据第三参数与第二映射关系确定。It should be noted that, in the case where the above-mentioned first reference resource overhead includes the above-mentioned second-level SCI reference resource overhead and the CSI-RS reference resource overhead, the above-mentioned second-level SCI reference resource may be based on the above beta value and reference The TBS is determined, or it is determined according to the beta value, the reference TBS and the above-mentioned number of available resources, and the reference resource overhead of the above-mentioned CSI-RS is determined according to the third parameter and the second mapping relationship; or, it can also be the reference resource overhead of the second-level SCI. and the reference resource overhead of the CSI-RS are determined according to the third parameter and the second mapping relationship.

其中,上述第三参数可以是任何第二级SCI的参考资源开销或者CSI-RS的参考资源开销存在影响的参数,具体地,上述第三参数可以包括所述第二级SCI的格式、第一级SCI中的固定码点和所述第二级SCI的传输类型中的至少一项。The above-mentioned third parameter may be any parameter that affects the reference resource overhead of the second-level SCI or the reference resource overhead of the CSI-RS. Specifically, the above-mentioned third parameter may include the format of the second-level SCI, the first at least one of a fixed code point in a level SCI and a transmission type of the second level SCI.

另外,上述第二映射关系可以为协议定义或者配置(如网络侧配置或者终端预配置)的参数与资源开销的映射关系。In addition, the above-mentioned second mapping relationship may be a mapping relationship between parameters defined or configured by a protocol (eg, network side configuration or terminal pre-configuration) and resource overhead.

例如:可以是协议定义或者配置上述第二映射关系包括如下至少一项:For example, it may be a protocol definition or configuration that the above-mentioned second mapping relationship includes at least one of the following:

若第二级SCI的格式为0-2-1,或者,第一级SCI中的固定码点为00,或者第二级SCI的传输类型用于调度组播类型(groupcast type)1,则映射的资源开销为N1 REs,且该资源开销为第二级SCI的参考资源开销;If the format of the second-level SCI is 0-2-1, or the fixed code point in the first-level SCI is 00, or the transmission type of the second-level SCI is used for scheduling groupcast type 1, the mapping The resource overhead is N1 REs, and the resource overhead is the reference resource overhead of the second-level SCI;

若第二级SCI的格式为0-2-2,或者,第一级SCI中的固定码点为01,或者第二级SCI的传输类型用于调度单播(unicast)或groupcast type 2,则映射的资源开销为N2 REs,且该资源开销包括第二级SCI的参考资源开销,当然,该资源开销还可以包括CSI-RS的参考资源开销;If the format of the second-level SCI is 0-2-2, or the fixed code point in the first-level SCI is 01, or the transmission type of the second-level SCI is used for scheduling unicast or groupcast type 2, then The mapped resource overhead is N2 REs, and the resource overhead includes the reference resource overhead of the second-level SCI. Of course, the resource overhead may also include the CSI-RS reference resource overhead;

若第二级SCI的格式为0-2-3,或者,第一级SCI中的固定码点为10,或者第二级SCI的传输类型用于调度广播(broadcast),则映射的资源开销为N3REs,且该资源开销为第二级SCI的参考资源开销;If the format of the second-level SCI is 0-2-3, or the fixed code point in the first-level SCI is 10, or the transmission type of the second-level SCI is used for scheduling broadcast (broadcast), the mapped resource overhead is N3REs, and the resource overhead is the reference resource overhead of the second-level SCI;

这里,上述N1、N2和N3的值可以相同或者不同。Here, the above-mentioned values of N1, N2 and N3 may be the same or different.

本实施方式中,上述第二映射关系也可以是上述参数与上述CSI-RS的资源开销的映射关系,即上述CSI-RS的参考资源开销可以是根据上述第三参数与上述第二映射关系确定。In this embodiment, the second mapping relationship may also be a mapping relationship between the parameters and the resource overhead of the CSI-RS, that is, the reference resource overhead of the CSI-RS may be determined according to the third parameter and the second mapping relationship .

具体地,在所述第三参数用于指示第一传输模式的情况下,所述参考资源开销包括CSI-RS的参考资源开销,其中,所述第一传输模式包括如下任一项:Specifically, when the third parameter is used to indicate the first transmission mode, the reference resource overhead includes the reference resource overhead of CSI-RS, where the first transmission mode includes any of the following:

unicast;unicast;

unicast和groupcast type 2;unicast and groupcast type 2;

unicast、groupcast type 2和broadcast。unicast, groupcast type 2 and broadcast.

这里,在上述第三参数用于指示上述第一传输模式的情况下,可以通过上述第三参数和上述第二映射关系确定上述CSI-RS的参考资源开销。Here, when the third parameter is used to indicate the first transmission mode, the reference resource overhead of the CSI-RS may be determined through the third parameter and the second mapping relationship.

本实施方式中,上述第二映射关系可以包括:所述第三参数与CSI-RS的参考资源开销的映射关系,所述CSI-RS的参考资源开销为第一开销。In this embodiment, the above-mentioned second mapping relationship may include: a mapping relationship between the third parameter and the reference resource overhead of the CSI-RS, and the reference resource overhead of the CSI-RS is the first overhead.

例如,当该第二级SCI的格式用于调度unicast传输时,CSI-RS的开销为Ncsi;否则,CSI-RS的开销为0;或者,当第二级SCI的格式用于调度unicast传输时,计算CSI-RS的开销,且CSI-RS的开销为Ncsi;否则,不计算CSI-RS的开销。For example, when the format of the second-level SCI is used to schedule unicast transmission, the CSI-RS overhead is Ncsi; otherwise, the CSI-RS overhead is 0; or, when the format of the second-level SCI is used to schedule unicast transmission , the CSI-RS overhead is calculated, and the CSI-RS overhead is Ncsi; otherwise, the CSI-RS overhead is not calculated.

或者,上述第二映射关系也可以包括:在所述第三参数包括第一资源的资源参数的情况下,若所述第一资源的资源参数满足预设条件,则所述CSI-RS的参考资源开销为第一开销,其中,所述第一资源包括:指示或者预留的PSSCH资源,或者,用于传输所述CSI-RS的资源。Alternatively, the above-mentioned second mapping relationship may also include: in the case that the third parameter includes the resource parameter of the first resource, if the resource parameter of the first resource satisfies a preset condition, the reference of the CSI-RS The resource overhead is the first overhead, where the first resource includes: indicated or reserved PSSCH resources, or resources used for transmitting the CSI-RS.

需要说明的是,上述第一资源的资源参数可以是任意与CSI-RS的参考资源开销存在关联的参数,以及,上述预设条件可以是协议定义或者配置的条件,且CSI-RS的参考资源开销基于上述第一资源的资源参数和上述预设条件确定。It should be noted that the resource parameter of the above-mentioned first resource may be any parameter associated with the reference resource overhead of CSI-RS, and the above-mentioned preset condition may be a condition defined or configured by a protocol, and the reference resource of CSI-RS may be The overhead is determined based on the resource parameter of the above-mentioned first resource and the above-mentioned preset condition.

在一些实施方式中,所述资源参数为带宽大小或者序列长度;所述预设条件包括:所述带宽大小或者序列长度大于或者等于预设阈值。In some embodiments, the resource parameter is a bandwidth size or a sequence length; the preset condition includes: the bandwidth size or the sequence length is greater than or equal to a preset threshold.

例如,第二映射关系可以是:在上述用于CSI-RS的资源的带宽大小大于或者等于预设阈值的情况下,CSI-RS的参考资源开销为Ncsi;否则,不计算CSI-RS的开销。For example, the second mapping relationship may be: in the case that the bandwidth of the resource used for CSI-RS is greater than or equal to the preset threshold, the reference resource overhead of CSI-RS is Ncsi; otherwise, the overhead of CSI-RS is not calculated .

另外,上述第一开销可以是协议定义或者配置的资源开销,具体地,上述第一开销可以包括如下任一项:In addition, the above-mentioned first overhead may be a resource overhead defined or configured by a protocol, and specifically, the above-mentioned first overhead may include any of the following:

协议预定义的参考值;Protocol predefined reference values;

网络预配置的参考值;Network pre-configured reference values;

一种CSI-RS的配置的开销;an overhead of a CSI-RS configuration;

多种CSI-RS的配置的开销的均值;The average value of the overhead of multiple CSI-RS configurations;

其中,所述一种CSI-RS的配置和/或所述多种CSI-RS的配置由协议预定义或者网络预配置。The configuration of the one CSI-RS and/or the configuration of the multiple CSI-RSs is predefined by a protocol or preconfigured by a network.

本实施例中,上述根据第一参考资源开销确定的第一TBS,可以是参考的TBS,或者,也可以是实际使用的TBS,在此并不进行限定。In this embodiment, the above-mentioned first TBS determined according to the first reference resource overhead may be a reference TBS, or may also be an actually used TBS, which is not limited herein.

为便于对上述TBS的确定方法的理解,在此对上述TBS的确定方法的实际应用过程进行举例说明,具体如下示例一至三:In order to facilitate the understanding of the above-mentioned TBS determination method, the actual application process of the above-mentioned TBS determination method is illustrated here, and the specific examples 1 to 3 are as follows:

示例一Example 1

协议预定义第二级SCI的格式、第一级SCI中的固定码点或者第二级SCI的传输类型与参考资源开销值REs的关系(即第二映射关系),以及对应的开销值,具体如下:The protocol predefines the format of the second-level SCI, the fixed code point in the first-level SCI, or the relationship between the transmission type of the second-level SCI and the reference resource overhead value REs (ie, the second mapping relationship), and the corresponding overhead value, specifically as follows:

若上述参数(即第三参数)指示为该第二级SCI可以用于调度groupcast type 1,则其资源开销定义为N1 REs。If the above parameter (ie, the third parameter) indicates that the second-level SCI can be used to schedule groupcast type 1, its resource overhead is defined as N1 REs.

若上述参数指示为该第二级SCI可以用于调度unicast或者groupcast type2,则其资源开销定义为N2 REs。If the above parameters indicate that the second-level SCI can be used to schedule unicast or groupcast type2, its resource overhead is defined as N2 REs.

若上述参数指示为该第二级SCI可以用于调度broadcast,则其资源开销定义为N3REs。If the above parameters indicate that the second-level SCI can be used for scheduling broadcast, its resource overhead is defined as N3REs.

若发送端(即终端)调度一个unicast数据包传输,则发送端根据定义的规则获取第二级SCI的参考资源开销为N2 REs。If the sender (ie, the terminal) schedules the transmission of a unicast data packet, the sender obtains the reference resource overhead of the second-level SCI according to the defined rules as N2 REs.

发送端或者接收端在一个时隙中,用PSSCH的资源减去N2用于计算可用资源,从而进一步计算实际的TBS。In a time slot, the transmitting end or the receiving end subtracts N2 from the PSSCH resources to calculate the available resources, so as to further calculate the actual TBS.

当然,进一步地,终端可以根据实际的TBS以及第一级SCI指示的beta值等计算实际的第二级SCI的资源开销。Of course, further, the terminal may calculate the actual resource overhead of the second-level SCI according to the actual TBS and the beta value indicated by the first-level SCI.

示例二Example 2

协议预定义第二级SCI的格式与第二级SCI的参考资源开销值REs的关系,协议预定义第二级SCI的格式与CSI-RS的参考资源开销值REs的关系,以及对应的开销值,具体如下:The protocol predefines the relationship between the format of the second-level SCI and the reference resource overhead value REs of the second-level SCI, and the protocol predefines the relationship between the format of the second-level SCI and the reference resource overhead value REs of the CSI-RS, and the corresponding overhead value ,details as follows:

若第二级SCI的格式指示为该第二级SCI可以用于调度groupcast type 1,则其第二级SCI的资源开销定义为N1 REs,且CSI-RS的资源开销为0;If the format of the second-level SCI indicates that the second-level SCI can be used to schedule groupcast type 1, the resource overhead of the second-level SCI is defined as N1 REs, and the resource overhead of the CSI-RS is 0;

若第二级SCI的格式指示为该第二级SCI可以用于调度unicast,则其第二级SCI的资源开销定义为N2 REs,且CSI-RS的资源开销定义为Ncsi REs;If the format of the second-level SCI indicates that the second-level SCI can be used for scheduling unicast, the resource overhead of the second-level SCI is defined as N2 REs, and the resource overhead of the CSI-RS is defined as Ncsi REs;

若第二级SCI的格式指示为该第二级SCI可以用于调度broadcast,则其第二级SCI的资源开销定义为N3 REs,且CSI-RS的资源开销为0;If the format of the second-level SCI indicates that the second-level SCI can be used for scheduling broadcast, the resource overhead of the second-level SCI is defined as N3 REs, and the resource overhead of the CSI-RS is 0;

若第二级SCI的格式指示为该第二级SCI可以用于调度groupcast type 2,则其第二级SCI的资源开销定义为N4 REs,且CSI-RS的资源开销为0。If the format of the second-level SCI indicates that the second-level SCI can be used for scheduling groupcast type 2, the resource overhead of the second-level SCI is defined as N4 REs, and the resource overhead of the CSI-RS is 0.

若发送端(即终端)调度一个unicast数据包传输,则发送端根据定义的规则获取第二级SCI的参考资源开销为N2 REs,获取CSI-RS的参考资源开销为Ncsi REs。If the sender (ie, the terminal) schedules the transmission of a unicast data packet, the sender obtains the reference resource overhead of the second-level SCI according to the defined rules as N2 REs, and obtains the reference resource overhead of the CSI-RS as Ncsi REs.

那么,发送端或者接收端在一个时隙中用PSSCH的资源减去N2和Ncsi用于计算可用资源,从而进一步计算实际传输的TBS。Then, the transmitting end or the receiving end subtracts N2 and Ncsi from the PSSCH resources in one time slot to calculate the available resources, so as to further calculate the actually transmitted TBS.

示例三Example three

协议预定义,根据beta值和参考TBS计算第二级SCI的参考资源开销。The protocol is predefined, and the reference resource overhead of the second-level SCI is calculated according to the beta value and the reference TBS.

其中,beta值为第一级SCI中指示的值,参考TBS根据公式Qm·R·Nsymb·NPRB·NSC(即上述公式(2))计算得到,相关参数如下定义:Among them, the beta value is the value indicated in the first-level SCI, and the reference TBS is calculated according to the formula Q m · R · N symb · N PRB · N SC (that is, the above formula (2)), and the relevant parameters are defined as follows:

Qm和R根据第一级SCI中指示的MCS获取; Qm and R are obtained according to the MCS indicated in the first-level SCI;

Nsymb根据假设的PSFCH的开销确定,也就是为PSSCH的符号数减去参考的PSFCH的开销;N symb is determined according to the assumed PSFCH overhead, that is, the number of PSSCH symbols minus the reference PSFCH overhead;

NPRB为第一级SCI中指示的频域资源的大小;N PRB is the size of the frequency domain resource indicated in the first-level SCI;

NSC为每个物理资源块PRB中的子载波数目,例如,NSC为12。N SC is the number of subcarriers in each PRB, for example, N SC is 12.

再根据参考的DMRS资源数目(即DMRS的参考资源开销),获取第二级SCI可用的资源数(即可用资源数目)。其中参考的DMRS资源数目根据RRC预配置的值(即RRC配置的符号数目)获取。Then, according to the number of referenced DMRS resources (that is, the reference resource overhead of the DMRS), the number of resources available for the second-level SCI (that is, the number of available resources) is obtained. The number of referenced DMRS resources is obtained according to the value pre-configured by the RRC (that is, the number of symbols configured by the RRC).

根据以上获取的参考TBS、定义的beta以及第二级SCI可用的资源数,代入以下公式计算第二级SCI的参考开销M1。According to the obtained reference TBS, the defined beta, and the number of resources available for the second-level SCI, substitute the following formula to calculate the reference cost M1 of the second-level SCI.

Figure BDA0002441436640000141
Figure BDA0002441436640000141

发送端(即终端)调度一个数据包传输,则发送端终端获取根据定义的规则获取第二级SCI的参考开销为M1 REs(即第二级SCI的参考资源开销)。When the sending end (ie, the terminal) schedules a data packet transmission, the sending end terminal obtains the reference overhead for obtaining the second-level SCI according to the defined rule as M1 REs (ie, the reference resource overhead of the second-level SCI).

发送端或者接收端在一个时隙中用PSSCH的资源减去M1用于计算可用资源,从而进一步计算实际传输的TBS。The transmitting end or the receiving end subtracts M1 from the PSSCH resources in one time slot to calculate the available resources, so as to further calculate the actually transmitted TBS.

当然,进一步地,终端还可以根据实际的TBS以及SCI指示的beta值等计算实际的第二级SCI的资源开销。Of course, further, the terminal may also calculate the actual resource overhead of the second-level SCI according to the actual TBS and the beta value indicated by the SCI.

请参见图3,图3是本发明实施例提供的一种终端,如图3所示,终端300包括:Please refer to FIG. 3. FIG. 3 is a terminal provided by an embodiment of the present invention. As shown in FIG. 3, the terminal 300 includes:

第一确定模块301,用于确定第一参考资源开销;a first determining module 301, configured to determine a first reference resource overhead;

第二确定模块302,用于根据所述第一参考资源开销,确定第一TBS;a second determining module 302, configured to determine a first TBS according to the first reference resource overhead;

其中,所述第一参考资源开销包括第二级SCI的参考资源开销和/或CSI-RS的参考资源开销。Wherein, the first reference resource overhead includes the reference resource overhead of the second-level SCI and/or the reference resource overhead of the CSI-RS.

可选的,所述第一参考资源开销包括所述第二级SCI的参考资源开销,且所述第二级SCI的参考资源开销根据所述第一beta值和参考TBS确定。Optionally, the first reference resource overhead includes the reference resource overhead of the second-level SCI, and the reference resource overhead of the second-level SCI is determined according to the first beta value and the reference TBS.

可选的,所述第一beta值包括如下至少一项:Optionally, the first beta value includes at least one of the following:

第一级SCI中指示的beta值;the beta value indicated in the first-level SCI;

根据第一参数和第一映射关系确定的beta值,其中,所述第一映射关系为参数与beta值的映射关系;The beta value determined according to the first parameter and the first mapping relationship, wherein the first mapping relationship is the mapping relationship between the parameter and the beta value;

协议预定义的值;Protocol predefined values;

无线资源控制RRC或者媒体接入控制控制单元MAC CE配置的值,或者下行控制信息DCI指示的值;The value configured by the radio resource control RRC or the medium access control control unit MAC CE, or the value indicated by the downlink control information DCI;

与调制和编码方案MCS关联的值。The value associated with the modulation and coding scheme MCS.

可选的,所述参考TBS根据第二参数确定,其中,所述第二参数包括如下至少一项:Optionally, the reference TBS is determined according to a second parameter, where the second parameter includes at least one of the following:

调制阶数Qmmodulation order Q m ;

码率R;code rate R;

物理旁链路共享信道PSSCH的参考符号数目Nsymbthe number N symb of reference symbols of the physical side link shared channel PSSCH;

第一级SCI指示的频域资源大小NPRBThe frequency domain resource size N PRB indicated by the first-level SCI;

物理资源块PRB中的子载波数NSCthe number of subcarriers N SC in the physical resource block PRB;

调制和编码方案MCS。Modulation and coding scheme MCS.

可选的,所述参考TBS为:所述调制阶数、所述码率、所述PSSCH的参考符号数目、所述PRB中的子载波数以及所述频域资源大小的乘积;或者,Optionally, the reference TBS is the product of the modulation order, the code rate, the number of reference symbols of the PSSCH, the number of subcarriers in the PRB, and the size of the frequency domain resource; or,

所述参考TBS为:所述码率、所述PSSCH的参考符号数目、所述PRB中的子载波数以及所述频域资源大小的乘积的整数倍。The reference TBS is an integer multiple of the product of the code rate, the number of reference symbols of the PSSCH, the number of subcarriers in the PRB, and the size of the frequency domain resource.

可选的,第二级SCI的参考资源开销根据所述第一beta值、参考TBS和可用资源数目确定,其中,所述可用资源数目根据DMRS的参考资源开销确定。Optionally, the reference resource overhead of the second-level SCI is determined according to the first beta value, the reference TBS, and the number of available resources, where the number of available resources is determined according to the reference resource overhead of the DMRS.

可选的,所述DMRS的参考资源开销根据如下至少一项确定:Optionally, the reference resource overhead of the DMRS is determined according to at least one of the following:

协议预定义的符号数目;The number of symbols predefined by the protocol;

RRC配置的符号数目;The number of symbols configured by RRC;

预定义的规则;predefined rules;

DMRS的参考符号数目,其中,所述DMRS的参考符号数目根据DMRS的样式获取,所述DMRS的样式由第一级SCI指示或PSCCH指示或RRC配置。The number of reference symbols of the DMRS, where the number of reference symbols of the DMRS is obtained according to the pattern of the DMRS, and the pattern of the DMRS is indicated by the first-level SCI or PSCCH or RRC configuration.

可选的,在DMRS的参考资源开销根据预定义的规则确定的情况下,所述DMRS的参考资源开销包括:Optionally, when the reference resource overhead of the DMRS is determined according to a predefined rule, the reference resource overhead of the DMRS includes:

在资源池中的每个时隙都存在物理旁链路反馈信道PSFCH的情况下对应的DMRS的参考资源开销;或者,The reference resource overhead of the corresponding DMRS in the case that the physical sidelink feedback channel PSFCH exists in each time slot in the resource pool; or,

在资源池中的每个时隙都不存在PSFCH的情况下对应的DMRS的参考资源开销。The reference resource overhead of the corresponding DMRS in the case that there is no PSFCH in each time slot in the resource pool.

可选的,在所述DMRS的参考资源开销根据预定义的规则确定的情况下,所述DMRS的参考资源开销为:Optionally, when the reference resource overhead of the DMRS is determined according to a predefined rule, the reference resource overhead of the DMRS is:

在资源中最后N个参考符号数不可用于DMRS的情况下对应的DMRS的参考资源开销,其中,N-1为参考的PSFCH开销。The reference resource overhead of the corresponding DMRS in the case that the last N reference symbols in the resource cannot be used for the DMRS, where N-1 is the reference PSFCH overhead.

可选的,所述第二级SCI的参考资源开销与MCS关联或者调制阶数Qm关联。Optionally, the reference resource overhead of the second-level SCI is associated with the MCS or the modulation order Qm.

可选的,所述第一参考资源开销根据第三参数与第二映射关系确定,所述第二映射关系为参数与资源开销的映射关系。Optionally, the first reference resource overhead is determined according to a third parameter and a second mapping relationship, where the second mapping relationship is a mapping relationship between parameters and resource overheads.

可选的,所述第三参数包括所述第二级SCI的格式、第一级SCI中的固定码点和所述第二级SCI的传输类型中的至少一项。Optionally, the third parameter includes at least one of a format of the second-level SCI, a fixed code point in the first-level SCI, and a transmission type of the second-level SCI.

可选的,在所述第三参数用于指示第一传输模式的情况下,所述参考资源开销包括CSI-RS的参考资源开销,其中,所述第一传输模式包括如下任一项:Optionally, when the third parameter is used to indicate a first transmission mode, the reference resource overhead includes a CSI-RS reference resource overhead, where the first transmission mode includes any of the following:

单播unicast;unicast unicast;

单播和组播类型groupcast type 2;Unicast and multicast type groupcast type 2;

unicast、groupcast type 2和广播broadcast。unicast, groupcast type 2 and broadcast broadcast.

可选的,所述第二映射关系包括:Optionally, the second mapping relationship includes:

所述第三参数与CSI-RS的参考资源开销的映射关系,所述CSI-RS的参考资源开销为第一开销;或者the mapping relationship between the third parameter and the reference resource overhead of the CSI-RS, where the reference resource overhead of the CSI-RS is the first overhead; or

在所述第三参数包括第一资源的资源参数的情况下,若所述第一资源的资源参数满足预设条件,则所述CSI-RS的参考资源开销为第一开销,其中,所述第一资源包括:指示或者预留的PSSCH资源,或者,用于传输所述CSI-RS的资源。In the case where the third parameter includes the resource parameter of the first resource, if the resource parameter of the first resource satisfies the preset condition, the reference resource overhead of the CSI-RS is the first overhead, wherein the The first resource includes: indicated or reserved PSSCH resources, or resources used for transmitting the CSI-RS.

可选的,所述资源参数为带宽大小或者序列长度;所述预设条件包括:所述带宽大小或者序列长度大于或者等于预设阈值。Optionally, the resource parameter is bandwidth size or sequence length; and the preset condition includes: the bandwidth size or sequence length is greater than or equal to a preset threshold.

可选的,所述第一开销包括如下任一项:Optionally, the first overhead includes any of the following:

协议预定义的参考值;Protocol predefined reference values;

网络预配置的参考值;Network pre-configured reference values;

一种CSI-RS的配置的开销;an overhead of a CSI-RS configuration;

多种CSI-RS的配置的开销的均值;The average value of the overhead of multiple CSI-RS configurations;

其中,所述一种CSI-RS的配置和/或所述多种CSI-RS的配置由协议预定义或者网络预配置。The configuration of the one CSI-RS and/or the configuration of the multiple CSI-RSs is predefined by a protocol or preconfigured by a network.

需要说明的是,本发明实施例中上述终端或300可以是图2所示的方法实施例中实施方式的终端,方法实施例中终端的任意实施方式都可以被本发明实施例中的上述终端300所实现,并达到相同的有益效果,为避免重复,此处不再赘述。It should be noted that, in this embodiment of the present invention, the above-mentioned terminal or 300 may be a terminal of an implementation mode in the method embodiment shown in FIG. 2 , and any implementation of the terminal in the method embodiment may be used by the above-mentioned terminal in this embodiment of the present invention. 300, and achieve the same beneficial effect, to avoid repetition, no further description will be given here.

图4为实现本发明各个实施例的一种终端的硬件结构示意图,该终端400包括但不限于:射频单元401、网络模块402、音频输出单元403、输入单元404、传感器405、显示单元406、用户输入单元407、接口单元408、存储器409、处理器410、以及电源411等部件。本领域技术人员可以理解,图4中示出的终端结构并不构成对终端的限定,终端可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置。4 is a schematic diagram of the hardware structure of a terminal implementing various embodiments of the present invention. The terminal 400 includes but is not limited to: a radio frequency unit 401, a network module 402, an audio output unit 403, an input unit 404, a sensor 405, a display unit 406, User input unit 407 , interface unit 408 , memory 409 , processor 410 , and power supply 411 and other components. Those skilled in the art can understand that the terminal structure shown in FIG. 4 does not constitute a limitation on the terminal, and the terminal may include more or less components than the one shown, or combine some components, or arrange different components.

其中,处理器410,用于:The processor 410 is used for:

确定第一参考资源开销;determining the first reference resource overhead;

根据所述第一参考资源开销确定第一TBS;determining the first TBS according to the first reference resource overhead;

其中,所述第一参考资源开销包括第二级旁链路控制信息SCI的参考资源开销和/或信道状态信息参考信号CSI-RS的参考资源开销。Wherein, the first reference resource overhead includes the reference resource overhead of the second-level sidelink control information SCI and/or the reference resource overhead of the channel state information reference signal CSI-RS.

可选的,所述第一参考资源开销包括所述第二级SCI的参考资源开销,且所述第二级SCI的参考资源开销根据所述第一beta值和参考TBS确定。Optionally, the first reference resource overhead includes the reference resource overhead of the second-level SCI, and the reference resource overhead of the second-level SCI is determined according to the first beta value and the reference TBS.

可选的,所述第一beta值包括如下至少一项:Optionally, the first beta value includes at least one of the following:

第一级SCI中指示的beta值;the beta value indicated in the first-level SCI;

根据第一参数和第一映射关系确定的beta值,其中,所述第一映射关系为参数与beta值的映射关系;The beta value determined according to the first parameter and the first mapping relationship, wherein the first mapping relationship is the mapping relationship between the parameter and the beta value;

协议预定义的值;Protocol predefined values;

无线资源控制RRC或者媒体接入控制控制单元MAC CE配置的值,或者下行控制信息DCI指示的值;The value configured by the radio resource control RRC or the medium access control control unit MAC CE, or the value indicated by the downlink control information DCI;

与调制和编码方案MCS关联的值。The value associated with the modulation and coding scheme MCS.

可选的,所述参考TBS根据第二参数确定,其中,所述第二参数包括如下至少一项:Optionally, the reference TBS is determined according to a second parameter, where the second parameter includes at least one of the following:

调制阶数Qmmodulation order Q m ;

码率R;code rate R;

物理旁链路共享信道PSSCH的参考符号数目Nsymbthe number N symb of reference symbols of the physical side link shared channel PSSCH;

第一级SCI指示的频域资源大小NPRBThe frequency domain resource size N PRB indicated by the first-level SCI;

物理资源块PRB中的子载波数NSCthe number of subcarriers N SC in the physical resource block PRB;

调制和编码方案MCS。Modulation and coding scheme MCS.

可选的,所述参考TBS为:所述调制阶数、所述码率、所述PSSCH的参考符号数目、所述PRB中的子载波数以及所述频域资源大小的乘积;或者,Optionally, the reference TBS is the product of the modulation order, the code rate, the number of reference symbols of the PSSCH, the number of subcarriers in the PRB, and the size of the frequency domain resource; or,

所述参考TBS为:所述码率、所述PSSCH的参考符号数目、所述PRB中的子载波数以及所述频域资源大小的乘积的整数倍。The reference TBS is an integer multiple of the product of the code rate, the number of reference symbols of the PSSCH, the number of subcarriers in the PRB, and the size of the frequency domain resource.

可选的,第二级SCI的参考资源开销根据所述第一beta值、参考TBS和可用资源数目确定,其中,所述可用资源数目根据DMRS的参考资源开销确定。Optionally, the reference resource overhead of the second-level SCI is determined according to the first beta value, the reference TBS, and the number of available resources, where the number of available resources is determined according to the reference resource overhead of the DMRS.

可选的,所述DMRS的参考资源开销根据如下至少一项确定:Optionally, the reference resource overhead of the DMRS is determined according to at least one of the following:

协议预定义的符号数目;The number of symbols predefined by the protocol;

RRC配置的符号数目;The number of symbols configured by RRC;

预定义的规则;predefined rules;

DMRS的参考符号数目,其中,所述DMRS的参考符号数目根据DMRS的样式获取,所述DMRS的样式由第一级SCI指示或PSCCH指示或RRC配置。The number of reference symbols of the DMRS, where the number of reference symbols of the DMRS is obtained according to the pattern of the DMRS, and the pattern of the DMRS is indicated by the first-level SCI or PSCCH or RRC configuration.

可选的,在DMRS的参考资源开销根据预定义的规则确定的情况下,所述DMRS的参考资源开销包括:Optionally, when the reference resource overhead of the DMRS is determined according to a predefined rule, the reference resource overhead of the DMRS includes:

在资源池中的每个时隙都存在物理旁链路反馈信道PSFCH的情况下对应的DMRS的参考资源开销;或者,The reference resource overhead of the corresponding DMRS in the case that the physical sidelink feedback channel PSFCH exists in each time slot in the resource pool; or,

在资源池中的每个时隙都不存在PSFCH的情况下对应的DMRS的参考资源开销。The reference resource overhead of the corresponding DMRS in the case that there is no PSFCH in each time slot in the resource pool.

可选的,在所述DMRS的参考资源开销根据预定义的规则确定的情况下,所述DMRS的参考资源开销为:Optionally, when the reference resource overhead of the DMRS is determined according to a predefined rule, the reference resource overhead of the DMRS is:

在资源中最后N个参考符号数不可用于DMRS的情况下对应的DMRS的参考资源开销,其中,N-1为参考的PSFCH开销。The reference resource overhead of the corresponding DMRS in the case that the last N reference symbols in the resource cannot be used for the DMRS, where N-1 is the reference PSFCH overhead.

可选的,所述第二级SCI的参考资源开销与MCS关联或者调制阶数Qm关联。Optionally, the reference resource overhead of the second-level SCI is associated with the MCS or the modulation order Qm.

可选的,所述第一参考资源开销根据第三参数与第二映射关系确定,所述第二映射关系为参数与资源开销的映射关系。Optionally, the first reference resource overhead is determined according to a third parameter and a second mapping relationship, where the second mapping relationship is a mapping relationship between parameters and resource overheads.

可选的,所述第三参数包括所述第二级SCI的格式、第一级SCI中的固定码点和所述第二级SCI的传输类型中的至少一项。Optionally, the third parameter includes at least one of a format of the second-level SCI, a fixed code point in the first-level SCI, and a transmission type of the second-level SCI.

可选的,在所述第三参数用于指示第一传输模式的情况下,所述参考资源开销包括CSI-RS的参考资源开销,其中,所述第一传输模式包括如下任一项:Optionally, when the third parameter is used to indicate a first transmission mode, the reference resource overhead includes a CSI-RS reference resource overhead, where the first transmission mode includes any of the following:

单播unicast;unicast unicast;

单播和组播类型groupcast type 2;Unicast and multicast type groupcast type 2;

unicast、groupcast type 2和广播broadcast。unicast, groupcast type 2 and broadcast broadcast.

可选的,所述第二映射关系包括:Optionally, the second mapping relationship includes:

所述第三参数与CSI-RS的参考资源开销的映射关系,所述CSI-RS的参考资源开销为第一开销;或者the mapping relationship between the third parameter and the reference resource overhead of the CSI-RS, where the reference resource overhead of the CSI-RS is the first overhead; or

在所述第三参数包括第一资源的资源参数的情况下,若所述第一资源的资源参数满足预设条件,则所述CSI-RS的参考资源开销为第一开销,其中,所述第一资源包括:指示或者预留的PSSCH资源,或者,用于传输所述CSI-RS的资源。In the case where the third parameter includes the resource parameter of the first resource, if the resource parameter of the first resource satisfies the preset condition, the reference resource overhead of the CSI-RS is the first overhead, wherein the The first resource includes: indicated or reserved PSSCH resources, or resources used for transmitting the CSI-RS.

可选的,所述资源参数为带宽大小或者序列长度;所述预设条件包括:所述带宽大小或者序列长度大于或者等于预设阈值。Optionally, the resource parameter is bandwidth size or sequence length; and the preset condition includes: the bandwidth size or sequence length is greater than or equal to a preset threshold.

可选的,所述第一开销包括如下任一项:Optionally, the first overhead includes any of the following:

协议预定义的参考值;Protocol predefined reference values;

网络预配置的参考值;Network pre-configured reference values;

一种CSI-RS的配置的开销;an overhead of a CSI-RS configuration;

多种CSI-RS的配置的开销的均值;The average value of the overhead of multiple CSI-RS configurations;

其中,所述一种CSI-RS的配置和/或所述多种CSI-RS的配置由协议预定义或者网络预配置。The configuration of the one CSI-RS and/or the configuration of the multiple CSI-RSs is predefined by a protocol or preconfigured by a network.

应理解的是,本发明实施例中,射频单元401可用于收发信息或通话过程中,信号的接收和发送,具体的,将来自基站的下行数据接收后,给处理器410处理;另外,将上行的数据发送给基站。通常,射频单元401包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外,射频单元401还可以通过无线通信系统与网络和其他设备通信。It should be understood that, in this embodiment of the present invention, the radio frequency unit 401 can be used for receiving and sending signals during sending and receiving information or during a call. Specifically, after receiving the downlink data from the base station, it is processed by the processor 410; The uplink data is sent to the base station. Generally, the radio frequency unit 401 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 401 can also communicate with the network and other devices through a wireless communication system.

终端通过网络模块402为用户提供了无线的宽带互联网访问,如帮助用户收发电子邮件、浏览网页和访问流式媒体等。The terminal provides the user with wireless broadband Internet access through the network module 402, such as helping the user to send and receive emails, browse web pages, and access streaming media.

音频输出单元403可以将射频单元401或网络模块402接收的或者在存储器409中存储的音频数据转换成音频信号并且输出为声音。而且,音频输出单元403还可以提供与终端400执行的特定功能相关的音频输出(例如,呼叫信号接收声音、消息接收声音等等)。音频输出单元403包括扬声器、蜂鸣器以及受话器等。The audio output unit 403 may convert audio data received by the radio frequency unit 401 or the network module 402 or stored in the memory 409 into audio signals and output as sound. Also, the audio output unit 403 may also provide audio output related to a specific function performed by the terminal 400 (eg, call signal reception sound, message reception sound, etc.). The audio output unit 403 includes a speaker, a buzzer, a receiver, and the like.

输入单元404用于接收音频或视频信号。输入单元404可以包括图形处理器(Graphics Processing Unit,GPU)4041和麦克风4042,图形处理器4041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元406上。经图形处理器4041处理后的图像帧可以存储在存储器409(或其它存储介质)中或者经由射频单元401或网络模块402进行发送。麦克风4042可以接收声音,并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元401发送到移动通信基站的格式输出。The input unit 404 is used to receive audio or video signals. The input unit 404 may include a graphics processor (Graphics Processing Unit, GPU) 4041 and a microphone 4042. The graphics processor 4041 captures images of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode data is processed. The processed image frames may be displayed on the display unit 406 . The image frames processed by the graphics processor 4041 may be stored in the memory 409 (or other storage medium) or transmitted via the radio frequency unit 401 or the network module 402 . The microphone 4042 can receive sound and can process such sound into audio data. The processed audio data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 401 for output in the case of a telephone call mode.

终端400还包括至少一种传感器405,比如光传感器、运动传感器以及其他传感器。具体地,光传感器包括环境光传感器及接近传感器,其中,环境光传感器可根据环境光线的明暗来调节显示面板4061的亮度,接近传感器可在终端400移动到耳边时,关闭显示面板4061以及背光。作为运动传感器的一种,加速计传感器可检测各个方向上(一般为三轴)加速度的大小,静止时可检测出重力的大小及方向,可用于识别终端姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等;传感器405还可以包括指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等,在此不再赘述。The terminal 400 also includes at least one sensor 405, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 4061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 4061 and the backlight when the terminal 400 is moved to the ear . As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (generally three axes), and can detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, The sensor 405 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared Sensors, etc., will not be repeated here.

显示单元406用于显示由用户输入的信息或提供给用户的信息。显示单元406可包括显示面板4061,可以采用液晶显示器(Liquid Crystal Display,LCD)、有机发光二极管(Organic Light-Emitting Diode,OLED)等形式来配置显示面板4061。The display unit 406 is used to display information input by the user or information provided to the user. The display unit 406 may include a display panel 4061, and the display panel 4061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

用户输入单元407可用于接收输入的数字或字符信息,以及产生与终端的用户设置以及功能指示有关的键信号输入。具体地,用户输入单元407包括触控面板4071以及其他输入设备4072。触控面板4071,也称为触摸屏,可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板4071上或在触控面板4071附近的操作)。触控面板4071可包括触摸检测装置和触摸指示器两个部分。其中,触摸检测装置检测用户的触摸方位,并检测触摸操作带来的信号,将信号传送给触摸指示器;触摸指示器从触摸检测装置上接收触摸信息,并将它转换成触点坐标,再送给处理器410,接收处理器410发来的命令并加以执行。此外,可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板4071。除了触控面板4071,用户输入单元407还可以包括其他输入设备4072。具体地,其他输入设备4072可以包括但不限于物理键盘、功能键(比如音量指示按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。The user input unit 407 may be used to receive input numerical or character information, and generate key signal input related to user settings and function indications of the terminal. Specifically, the user input unit 407 includes a touch panel 4071 and other input devices 4072 . The touch panel 4071, also referred to as a touch screen, can collect the user's touch operations on or near it (such as the user's finger, stylus, etc., any suitable object or accessory on or near the touch panel 4071). operate). The touch panel 4071 may include two parts, a touch detection device and a touch indicator. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch indicator; the touch indicator receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it to the touch indicator. To the processor 410, the command sent by the processor 410 is received and executed. In addition, the touch panel 4071 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch panel 4071 , the user input unit 407 may also include other input devices 4072 . Specifically, other input devices 4072 may include, but are not limited to, physical keyboards, function keys (such as volume indicating keys, switch keys, etc.), trackballs, mice, and operation sticks, which will not be repeated here.

进一步的,触控面板4071可覆盖在显示面板4071上,当触控面板4071检测到在其上或附近的触摸操作后,传送给处理器410以确定触摸事件的类型,随后处理器410根据触摸事件的类型在显示面板4061上提供相应的视觉输出。虽然在图4中,触控面板4071与显示面板4061是作为两个独立的部件来实现终端的输入和输出功能,但是在某些实施例中,可以将触控面板4071与显示面板4061集成而实现终端的输入和输出功能,具体此处不做限定。Further, the touch panel 4071 can be covered on the display panel 4071. When the touch panel 4071 detects a touch operation on or near it, it transmits it to the processor 410 to determine the type of the touch event, and then the processor 410 determines the type of the touch event according to the touch The type of event provides corresponding visual output on display panel 4061. Although in FIG. 4, the touch panel 4071 and the display panel 4061 are used as two independent components to realize the input and output functions of the terminal, in some embodiments, the touch panel 4071 and the display panel 4061 can be integrated to form a Realize the input and output functions of the terminal, which is not limited here.

接口单元408为外部装置与终端400连接的接口。例如,外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等等。接口单元408可以用于接收来自外部装置的输入(例如,数据信息、电力等等)并且将接收到的输入传输到终端400内的一个或多个元件或者可以用于在终端400和外部装置之间传输数据。The interface unit 408 is an interface for connecting an external device to the terminal 400 . For example, external devices may include wired or wireless headset ports, external power (or battery charger) ports, wired or wireless data ports, memory card ports, ports for connecting devices with identification modules, audio input/output (I/O) ports, video I/O ports, headphone ports, and more. The interface unit 408 may be used to receive input (eg, data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 400 or may be used between the terminal 400 and the external device. transfer data between.

存储器409可用于存储软件程序以及各种数据。存储器409可主要包括存储程序区和存储数据区,其中,存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等;存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外,存储器409可以包括高速随机存取存储器,还可以包括非易失性存储器,例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。The memory 409 may be used to store software programs as well as various data. The memory 409 may mainly include a stored program area and a stored data area, wherein the stored program area may store an operating system, an application program (such as a sound playback function, an image playback function, etc.) required for at least one function, and the like; Data created by the use of the mobile phone (such as audio data, phone book, etc.), etc. Additionally, memory 409 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

处理器410是终端的指示中心,利用各种接口和线路连接整个终端的各个部分,通过运行或执行存储在存储器409内的软件程序以及模块,以及调用存储在存储器409内的数据,执行终端的各种功能和处理数据,从而对终端进行整体监控。处理器410可包括一个或多个处理单元;优选的,处理器410可集成应用处理器和调制解调处理器,其中,应用处理器主要处理操作系统、用户界面和应用程序等,调制解调处理器主要处理无线通信。可以理解的是,上述调制解调处理器也可以不集成到处理器410中。The processor 410 is the instruction center of the terminal, uses various interfaces and lines to connect various parts of the entire terminal, and executes the operation of the terminal by running or executing the software programs and modules stored in the memory 409 and calling the data stored in the memory 409. Various functions and processing data for overall monitoring of the terminal. The processor 410 may include one or more processing units; preferably, the processor 410 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, etc., and the modem The processor mainly handles wireless communication. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 410.

终端400还可以包括给各个部件供电的电源411(比如电池),优选的,电源411可以通过电源管理系统与处理器410逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。The terminal 400 may also include a power supply 411 (such as a battery) for supplying power to various components. Preferably, the power supply 411 may be logically connected to the processor 410 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. Function.

另外,终端400包括一些未示出的功能模块,在此不再赘述。In addition, the terminal 400 includes some unshown functional modules, which are not repeated here.

优选的,本发明实施例还提供一种终端,包括处理器410,存储器409,存储在存储器409上并可在所述处理器410上运行的计算机程序,该计算机程序被处理器410执行时实现上述TBS的确定方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。Preferably, an embodiment of the present invention further provides a terminal, including a processor 410, a memory 409, a computer program stored in the memory 409 and running on the processor 410, and the computer program is implemented when the processor 410 executes it. Each process of the above-mentioned TBS determination method embodiment can achieve the same technical effect, and to avoid repetition, it will not be repeated here.

需要说明的是,本实施例中上述终端400可以是本发明实施例中方法实施例中任意实施方式的终端,本发明实施例中方法实施例中终端的任意实施方式都可以被本实施例中的上述终端400所实现,以及达到相同的有益效果,此处不再赘述。It should be noted that, in this embodiment, the above-mentioned terminal 400 may be a terminal of any implementation mode in the method embodiment in this embodiment of the present invention, and any implementation mode of the terminal in the method embodiment in this embodiment of the present invention may be used in this embodiment. The above-mentioned terminal 400 realizes and achieves the same beneficial effects, which will not be repeated here.

本发明实施例还提供一种计算机可读存储介质,计算机可读存储介质上存储有计算机程序,该计算机程序被处理器执行时实现上述对应于第一网络功能、第二网络功能、终端或者基站节点的实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。其中,所述的计算机可读存储介质,如只读存储器(Read-Only Memory,简称ROM)、随机存取存储器(Random Access Memory,简称RAM)、磁碟或者光盘等。Embodiments of the present invention further provide a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the above-mentioned corresponding first network function, second network function, terminal or base station is implemented Each process of the embodiment of the node can achieve the same technical effect, and to avoid repetition, it will not be repeated here. The computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM for short), a random access memory (Random Access Memory, RAM for short), a magnetic disk, or an optical disk.

需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本发明各个实施例所述的方法。From the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation. Based on this understanding, the technical solutions of the present invention can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products are stored in a storage medium (such as ROM/RAM, magnetic disk, CD), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present invention.

以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以权利要求的保护范围为准。The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (32)

1.一种TBS的确定方法,应用于终端,其特征在于,包括:1. a method for determining TBS, applied to a terminal, is characterized in that, comprising: 确定第一参考资源开销;determining the first reference resource overhead; 根据所述第一参考资源开销,确定第一传输块大小TBS;determining a first transport block size TBS according to the first reference resource overhead; 其中,所述第一参考资源开销包括第二级旁链路控制信息SCI的参考资源开销和/或信道状态信息参考信号CSI-RS的参考资源开销;Wherein, the first reference resource overhead includes the reference resource overhead of the second-level sidelink control information SCI and/or the reference resource overhead of the channel state information reference signal CSI-RS; 所述第二级SCI的参考资源开销根据第一beta值和参考TBS确定;The reference resource overhead of the second-level SCI is determined according to the first beta value and the reference TBS; 和/或,and / or, 所述CSI-RS的参考资源开销根据第三参数与第二映射关系确定,所述第二映射关系为第三参数与CSI-RS的参考资源开销的映射关系,所述第三参数是与所述CSI-RS的参考资源开销相关的参数。The reference resource overhead of the CSI-RS is determined according to the third parameter and the second mapping relationship, the second mapping relationship is the mapping relationship between the third parameter and the reference resource overhead of the CSI-RS, and the third parameter is the mapping relationship with the reference resource overhead of the CSI-RS. The parameters related to the reference resource overhead of the CSI-RS are described. 2.根据权利要求1所述的方法,其特征在于,所述第一beta值包括如下至少一项:2. The method according to claim 1, wherein the first beta value comprises at least one of the following: 第一级SCI中指示的beta值;the beta value indicated in the first-level SCI; 根据第一参数和第一映射关系确定的beta值,其中,所述第一映射关系为参数与beta值的映射关系;The beta value determined according to the first parameter and the first mapping relationship, wherein the first mapping relationship is the mapping relationship between the parameter and the beta value; 协议预定义的值;Protocol predefined values; 无线资源控制RRC或者媒体接入控制控制单元MAC CE配置的值,或者下行控制信息DCI指示的值;The value configured by the radio resource control RRC or the medium access control control unit MAC CE, or the value indicated by the downlink control information DCI; 与调制和编码方案MCS关联的值。The value associated with the modulation and coding scheme MCS. 3.根据权利要求1所述的方法,其特征在于,所述参考TBS根据第二参数确定,其中,所述第二参数包括如下至少一项:3. The method according to claim 1, wherein the reference TBS is determined according to a second parameter, wherein the second parameter comprises at least one of the following: 调制阶数Qmmodulation order Q m ; 码率R;code rate R; 物理旁链路共享信道PSSCH的参考符号数目Nsymbthe number N symb of reference symbols of the physical side link shared channel PSSCH; 第一级SCI指示的频域资源大小NPRBThe frequency domain resource size N PRB indicated by the first-level SCI; 物理资源块PRB中的子载波数NSCthe number of subcarriers N SC in the physical resource block PRB; 调制和编码方案MCS。Modulation and coding scheme MCS. 4.根据权利要求3所述的方法,其特征在于,所述参考TBS为:所述调制阶数、所述码率、所述PSSCH的参考符号数目、所述PRB中的子载波数以及所述频域资源大小的乘积;或者,4. The method according to claim 3, wherein the reference TBS is: the modulation order, the code rate, the number of reference symbols of the PSSCH, the number of subcarriers in the PRB, and the the product of the aforementioned frequency domain resource sizes; or, 所述参考TBS为:所述码率、所述PSSCH的参考符号数目、所述PRB中的子载波数以及所述频域资源大小的乘积的整数倍。The reference TBS is an integer multiple of the product of the code rate, the number of reference symbols of the PSSCH, the number of subcarriers in the PRB, and the size of the frequency domain resource. 5.根据权利要求1所述的方法,其特征在于,第二级SCI的参考资源开销根据所述第一beta值、参考TBS和可用资源数目确定,其中,所述可用资源数目根据DMRS的参考资源开销确定。5. The method according to claim 1, wherein the reference resource overhead of the second-level SCI is determined according to the first beta value, the reference TBS and the number of available resources, wherein the number of available resources is based on the reference of the DMRS Resource overhead is determined. 6.根据权利要求5所述的方法,其特征在于,所述DMRS的参考资源开销根据如下至少一项确定:6. The method according to claim 5, wherein the reference resource overhead of the DMRS is determined according to at least one of the following: 协议预定义的符号数目;The number of symbols predefined by the protocol; RRC配置的符号数目;The number of symbols configured by RRC; 预定义的规则;predefined rules; DMRS的参考符号数目,其中,所述DMRS的参考符号数目根据DMRS的样式获取,所述DMRS的样式由第一级SCI指示或PSCCH指示或RRC配置。The number of reference symbols of the DMRS, where the number of reference symbols of the DMRS is obtained according to the pattern of the DMRS, and the pattern of the DMRS is indicated by the first-level SCI or PSCCH or RRC configuration. 7.根据权利要求6所述的方法,其特征在于,在DMRS的参考资源开销根据预定义的规则确定的情况下,所述DMRS的参考资源开销包括:7. The method according to claim 6, wherein, when the reference resource overhead of the DMRS is determined according to a predefined rule, the reference resource overhead of the DMRS comprises: 在资源池中的每个时隙都存在物理旁链路反馈信道PSFCH的情况下对应的DMRS的参考资源开销;或者,The reference resource overhead of the corresponding DMRS in the case that the physical sidelink feedback channel PSFCH exists in each time slot in the resource pool; or, 在资源池中的每个时隙都不存在PSFCH的情况下对应的DMRS的参考资源开销。The reference resource overhead of the corresponding DMRS in the case that there is no PSFCH in each time slot in the resource pool. 8.根据权利要求6所述的方法,其特征在于,在所述DMRS的参考资源开销根据预定义的规则确定的情况下,所述DMRS的参考资源开销为:8. The method according to claim 6, wherein, when the reference resource overhead of the DMRS is determined according to a predefined rule, the reference resource overhead of the DMRS is: 在资源中最后N个参考符号数不可用于DMRS的情况下对应的DMRS的参考资源开销,其中,N-1为参考的PSFCH开销。The reference resource overhead of the corresponding DMRS in the case that the last N reference symbols in the resource cannot be used for the DMRS, where N-1 is the reference PSFCH overhead. 9.根据权利要求1所述的方法,其特征在于,所述第二级SCI的参考资源开销与MCS关联或者调制阶数Qm关联。9 . The method according to claim 1 , wherein the reference resource overhead of the second-level SCI is associated with an MCS or a modulation order Q m . 10 . 10.根据权利要求1所述的方法,其特征在于,所述第二级SCI的参考资源开销根据第三参数与第二映射关系确定,所述第二映射关系为第三参数与第二级SCI的参考资源开销的映射关系,所述第三参数是与所述第二级SCI的参考资源相关的参数。10 . The method according to claim 1 , wherein the reference resource overhead of the second-level SCI is determined according to a third parameter and a second mapping relationship, and the second mapping relationship is the third parameter and the second-level SCI. 11 . The mapping relationship of the reference resource overhead of the SCI, and the third parameter is a parameter related to the reference resource of the second-level SCI. 11.根据权利要求1所述的方法,其特征在于,所述第三参数包括所述第二级SCI的格式、第一级SCI中的固定码点和所述第二级SCI的传输类型中的至少一项。11. The method according to claim 1, wherein the third parameter comprises a format of the second-level SCI, a fixed code point in the first-level SCI, and a transmission type of the second-level SCI at least one of. 12.根据权利要求11所述的方法,其特征在于,在所述第三参数用于指示第一传输模式的情况下,所述参考资源开销包括CSI-RS的参考资源开销,其中,所述第一传输模式包括如下任一项:12 . The method according to claim 11 , wherein, when the third parameter is used to indicate a first transmission mode, the reference resource overhead comprises a reference resource overhead of CSI-RS, wherein the The first transmission mode includes any of the following: 单播unicast;unicast unicast; unicast和组播类型groupcast type 2;unicast and multicast type groupcast type 2; unicast、groupcast type 2和广播broadcast。unicast, groupcast type 2 and broadcast broadcast. 13.根据权利要求11所述的方法,其特征在于,所述第二映射关系包括:13. The method according to claim 11, wherein the second mapping relationship comprises: 所述第三参数与CSI-RS的参考资源开销的映射关系,所述CSI-RS的参考资源开销为第一开销;或者the mapping relationship between the third parameter and the reference resource overhead of the CSI-RS, where the reference resource overhead of the CSI-RS is the first overhead; or 在所述第三参数包括第一资源的资源参数的情况下,若所述第一资源的资源参数满足预设条件,则所述CSI-RS的参考资源开销为第一开销,其中,所述第一资源包括:指示或者预留的PSSCH资源,或者,用于传输所述CSI-RS的资源。In the case where the third parameter includes the resource parameter of the first resource, if the resource parameter of the first resource satisfies the preset condition, the reference resource overhead of the CSI-RS is the first overhead, wherein the The first resource includes: indicated or reserved PSSCH resources, or resources used for transmitting the CSI-RS. 14.根据权利要求13所述的方法,其特征在于,所述资源参数为带宽大小或者序列长度;所述预设条件包括:所述带宽大小或者序列长度大于或者等于预设阈值。The method according to claim 13, wherein the resource parameter is a bandwidth size or a sequence length; and the preset condition comprises: the bandwidth size or the sequence length is greater than or equal to a preset threshold. 15.根据权利要求13所述的方法,其特征在于,所述第一开销包括如下任一项:15. The method according to claim 13, wherein the first overhead comprises any one of the following: 协议预定义的参考值;Protocol predefined reference values; 网络预配置的参考值;Network pre-configured reference values; 一种CSI-RS的配置的开销;an overhead of a CSI-RS configuration; 多种CSI-RS的配置的开销的均值;The average value of the overhead of multiple CSI-RS configurations; 其中,所述一种CSI-RS的配置和/或所述多种CSI-RS的配置由协议预定义或者网络预配置。The configuration of the one CSI-RS and/or the configuration of the multiple CSI-RSs is predefined by a protocol or preconfigured by a network. 16.一种终端,其特征在于,包括:16. A terminal, characterized in that, comprising: 第一确定模块,用于确定第一参考资源开销;a first determining module, configured to determine the first reference resource overhead; 第二确定模块,用于根据所述第一参考资源开销,确定第一TBS;a second determining module, configured to determine the first TBS according to the first reference resource overhead; 其中,所述第一参考资源开销包括第二级SCI的参考资源开销和/或CSI-RS的参考资源开销;Wherein, the first reference resource overhead includes the reference resource overhead of the second-level SCI and/or the reference resource overhead of the CSI-RS; 所述第二级SCI的参考资源开销根据第一beta值和参考TBS确定;The reference resource overhead of the second-level SCI is determined according to the first beta value and the reference TBS; 和/或,and / or, 所述CSI-RS的参考资源开销根据第三参数与第二映射关系确定,所述第二映射关系为第三参数与CSI-RS的参考资源开销的映射关系,所述第三参数是与所述CSI-RS的参考资源开销相关的参数。The reference resource overhead of the CSI-RS is determined according to the third parameter and the second mapping relationship, the second mapping relationship is the mapping relationship between the third parameter and the reference resource overhead of the CSI-RS, and the third parameter is the mapping relationship with the reference resource overhead of the CSI-RS. The parameters related to the reference resource overhead of the CSI-RS are described. 17.根据权利要求16所述的终端,其特征在于,所述第一beta值包括如下至少一项:17. The terminal according to claim 16, wherein the first beta value comprises at least one of the following: 第一级SCI中指示的beta值;the beta value indicated in the first-level SCI; 根据第一参数和第一映射关系确定的beta值,其中,所述第一映射关系为参数与beta值的映射关系;The beta value determined according to the first parameter and the first mapping relationship, wherein the first mapping relationship is the mapping relationship between the parameter and the beta value; 协议预定义的值;Protocol predefined values; 无线资源控制RRC或者媒体接入控制控制单元MAC CE配置的值,或者下行控制信息DCI指示的值;The value configured by the radio resource control RRC or the medium access control control unit MAC CE, or the value indicated by the downlink control information DCI; 与调制和编码方案MCS关联的值。The value associated with the modulation and coding scheme MCS. 18.根据权利要求16所述的终端,其特征在于,所述参考TBS根据第二参数确定,其中,所述第二参数包括如下至少一项:18. The terminal according to claim 16, wherein the reference TBS is determined according to a second parameter, wherein the second parameter comprises at least one of the following: 调制阶数Qmmodulation order Q m ; 码率R;code rate R; 物理旁链路共享信道PSSCH的参考符号数目Nsymbthe number N symb of reference symbols of the physical side link shared channel PSSCH; 第一级SCI指示的频域资源大小NPRBThe frequency domain resource size N PRB indicated by the first-level SCI; PRB中的子载波数NSCThe number of subcarriers N SC in the PRB; 调制和编码方案MCS。Modulation and coding scheme MCS. 19.根据权利要求18所述的终端,其特征在于,所述参考TBS为:所述调制阶数、所述码率、所述PSSCH的参考符号数目、所述PRB中的子载波数以及所述频域资源大小的乘积;或者,19. The terminal according to claim 18, wherein the reference TBS is: the modulation order, the code rate, the number of reference symbols of the PSSCH, the number of subcarriers in the PRB, and the the product of the aforementioned frequency domain resource sizes; or, 所述参考TBS为:所述码率、所述PSSCH的参考符号数目、所述PRB中的子载波数以及所述频域资源大小的乘积的整数倍。The reference TBS is an integer multiple of the product of the code rate, the number of reference symbols of the PSSCH, the number of subcarriers in the PRB, and the size of the frequency domain resource. 20.根据权利要求16所述的终端,其特征在于,第二级SCI的参考资源开销根据所述第一beta值、参考TBS和可用资源数目确定,其中,所述可用资源数目根据DMRS的参考资源开销确定。20. The terminal according to claim 16, wherein the reference resource overhead of the second-level SCI is determined according to the first beta value, the reference TBS and the number of available resources, wherein the number of available resources is based on the reference of the DMRS Resource overhead is determined. 21.根据权利要求20所述的终端,其特征在于,所述DMRS的参考资源开销根据如下至少一项确定:21. The terminal according to claim 20, wherein the reference resource overhead of the DMRS is determined according to at least one of the following: 协议预定义的符号数目;The number of symbols predefined by the protocol; RRC配置的符号数目;The number of symbols configured by RRC; 预定义的规则;predefined rules; DMRS的参考符号数目,其中,所述DMRS的参考符号数目根据DMRS的样式获取,所述DMRS的样式由第一级SCI指示或PSCCH指示或RRC配置。The number of reference symbols of the DMRS, where the number of reference symbols of the DMRS is obtained according to the pattern of the DMRS, and the pattern of the DMRS is indicated by the first-level SCI or PSCCH or RRC configuration. 22.根据权利要求21所述的终端,其特征在于,在DMRS的参考资源开销根据预定义的规则确定的情况下,所述DMRS的参考资源开销包括:22. The terminal according to claim 21, wherein, in the case that the reference resource overhead of the DMRS is determined according to a predefined rule, the reference resource overhead of the DMRS comprises: 在资源池中的每个时隙都存在物理旁链路反馈信道PSFCH的情况下对应的DMRS的参考资源开销;或者,The reference resource overhead of the corresponding DMRS in the case that the physical sidelink feedback channel PSFCH exists in each time slot in the resource pool; or, 在资源池中的每个时隙都不存在PSFCH的情况下对应的DMRS的参考资源开销。The reference resource overhead of the corresponding DMRS in the case that there is no PSFCH in each time slot in the resource pool. 23.根据权利要求21所述的终端,其特征在于,在所述DMRS的参考资源开销根据预定义的规则确定的情况下,所述DMRS的参考资源开销为:23. The terminal according to claim 21, wherein, when the reference resource overhead of the DMRS is determined according to a predefined rule, the reference resource overhead of the DMRS is: 在资源中最后N个参考符号数不可用于DMRS的情况下对应的DMRS的参考资源开销,其中,N-1为参考的PSFCH开销。The reference resource overhead of the corresponding DMRS in the case that the last N reference symbols in the resource cannot be used for the DMRS, where N-1 is the reference PSFCH overhead. 24.根据权利要求16所述的终端,其特征在于,所述第二级SCI的参考资源开销与MCS关联或者调制阶数Qm关联。24. The terminal according to claim 16, wherein the reference resource overhead of the second-level SCI is associated with an MCS or a modulation order Q m . 25.根据权利要求16所述的终端,其特征在于,所述第二级SCI的参考资源开销根据第三参数与第二映射关系确定,所述第二映射关系为第三参数与第二级SCI的参考资源开销的映射关系,所述第三参数是与所述第二级SCI的参考资源相关的参数。25 . The terminal according to claim 16 , wherein the reference resource overhead of the second-level SCI is determined according to a third parameter and a second mapping relationship, and the second mapping relationship is the third parameter and the second-level SCI. 26 . The mapping relationship of the reference resource overhead of the SCI, and the third parameter is a parameter related to the reference resource of the second-level SCI. 26.根据权利要求16所述的终端,其特征在于,所述第三参数包括所述第二级SCI的格式、第一级SCI中的固定码点和所述第二级SCI的传输类型中的至少一项。26. The terminal according to claim 16, wherein the third parameter comprises a format of the second-level SCI, a fixed code point in the first-level SCI, and a transmission type of the second-level SCI at least one of. 27.根据权利要求26所述的终端,其特征在于,在所述第三参数用于指示第一传输模式的情况下,所述参考资源开销包括CSI-RS的参考资源开销,其中,所述第一传输模式包括如下任一项:27. The terminal according to claim 26, wherein, when the third parameter is used to indicate the first transmission mode, the reference resource overhead comprises a reference resource overhead of CSI-RS, wherein the The first transmission mode includes any of the following: 单播unicast;unicast unicast; unicast和groupcast type 2;unicast and groupcast type 2; unicast、groupcast type 2和broadcast。unicast, groupcast type 2 and broadcast. 28.根据权利要求26所述的终端,其特征在于,所述第二映射关系包括:28. The terminal according to claim 26, wherein the second mapping relationship comprises: 所述第三参数与CSI-RS的参考资源开销的映射关系,所述CSI-RS的参考资源开销为第一开销;或者the mapping relationship between the third parameter and the reference resource overhead of the CSI-RS, where the reference resource overhead of the CSI-RS is the first overhead; or 在所述第三参数包括第一资源的资源参数的情况下,若所述第一资源的资源参数满足预设条件,则所述CSI-RS的参考资源开销为第一开销,其中,所述第一资源包括:指示或者预留的PSSCH资源,或者,用于传输所述CSI-RS的资源。In the case where the third parameter includes the resource parameter of the first resource, if the resource parameter of the first resource satisfies the preset condition, the reference resource overhead of the CSI-RS is the first overhead, wherein the The first resource includes: indicated or reserved PSSCH resources, or resources used for transmitting the CSI-RS. 29.根据权利要求28所述的终端,其特征在于,所述资源参数为带宽大小或者序列长度;所述预设条件包括:所述带宽大小或者序列长度大于或者等于预设阈值。29. The terminal according to claim 28, wherein the resource parameter is a bandwidth size or a sequence length; and the preset condition comprises: the bandwidth size or the sequence length is greater than or equal to a preset threshold. 30.根据权利要求28所述的终端,其特征在于,所述第一开销包括如下任一项:30. The terminal according to claim 28, wherein the first overhead comprises any one of the following: 协议预定义的参考值;Protocol predefined reference values; 网络预配置的参考值;Network pre-configured reference values; 一种CSI-RS的配置的开销;an overhead of a CSI-RS configuration; 多种CSI-RS的配置的开销的均值;The average value of the overhead of multiple CSI-RS configurations; 其中,所述一种CSI-RS的配置和/或所述多种CSI-RS的配置由协议预定义或者网络预配置。The configuration of the one CSI-RS and/or the configuration of the multiple CSI-RSs is predefined by a protocol or preconfigured by a network. 31.一种终端,其特征在于,包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如权利要求1至15中任一项所述的TBS的确定方法中的步骤。31. A terminal, characterized in that it comprises: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program being executed by the processor to achieve the right Steps in the method for determining TBS according to any one of claims 1 to 15. 32.一种计算机可读存储介质,其特征在于,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现如权利要求1至15中任一项所述的TBS的确定方法中的步骤。32. A computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program according to any one of claims 1 to 15 is implemented. Steps in a method for determining TBS.
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