Method and apparatus for determining terminal type, terminal, chip, and storage medium

Abstract

Embodiments of the present application provide a method and apparatus for determining terminal type, a terminal, a chip, and a storage medium. The method comprises: a first terminal sends first information and / or sends a first signal on a first time unit; the first information is used to indicate that the first terminal is a low-capability terminal, the first time unit is used by the low-capability terminal to send the first signal, and the first terminal is a terminal in a sidelink system.

Description

Method and device for determining terminal type, terminal, chip, and storage medium Technical Field

[0001] The embodiments of the present application relate to the field of sideline communication technology, and specifically to a method and device for determining a terminal type, a terminal, a chip, and a storage medium. Background Art

[0002] Reduced Capability (RedCap) is a new technology defined by the 3rd Generation Partnership Project (3GPP). In discussions of sidelink in unlicensed spectrum (SL-U), all terminals had the same capabilities, and reduced capability terminals were not considered. However, terminal cost and power consumption are crucial metrics for commercial deployment. The low cost and power consumption of reduced capability terminals can facilitate the commercialization of SL-U technology, so the introduction of reduced capability terminals into sidelink (SL) systems is a viable option.

[0003] After low-capability terminals are introduced into the sidewalk system, how other terminals identify low-capability terminals is an issue that needs to be studied.

[0004] Summary of the Invention

[0005] Embodiments of the present application provide a method and apparatus for determining a terminal type, a terminal, a chip, a computer-readable storage medium, a computer program product, and a computer program.

[0006] In a first aspect, an embodiment of the present application provides a method for determining a terminal type, the method comprising:

[0007] The first terminal sends first information and / or sends a first signal in a first time unit; the first information is used to indicate that the first terminal is a low-capability terminal; the first time unit is used for the low-capability terminal to send the first signal; the first terminal is a terminal in a sideline system.

[0008] In a second aspect, an embodiment of the present application provides a method for determining a terminal type, the method comprising:

[0009] The second terminal receives the first information and / or receives the first signal in the first time unit; the first information is used to indicate that the first terminal is a low-capability terminal; the first time unit is used for the low-capability terminal to send the first signal; the second terminal is a terminal in the sideline system.

[0010] In a third aspect, an embodiment of the present application provides a device for determining a terminal type, which is applied to a first terminal. The device includes:

[0011] A sending unit, used for sending first information and / or sending a first signal on a first time unit; the first information is used to indicate that the first terminal is a low-capability terminal; the first time unit is used for the low-capability terminal to send the first signal; the first terminal is a terminal in a sideline system.

[0012] In a fourth aspect, an embodiment of the present application provides a device for determining a terminal type, which is applied to a second terminal, and includes:

[0013] A receiving unit is used to receive first information and / or receive a first signal at a first time unit; the first information is used to indicate that the first terminal is a low-capability terminal; the first time unit is used for the low-capability terminal to send the first signal; the second terminal is a terminal in a sideline system.

[0014] In a fifth aspect, an embodiment of the present application provides a terminal comprising a memory and a processor; wherein the memory is used to store computer-executable instructions; and the processor is connected to the memory and is used to implement the method described in any of the above aspects by executing the computer-executable instructions.

[0015] In a sixth aspect, an embodiment of the present application provides a chip, which includes: a processor for calling and running a computer program from a memory, so that a device equipped with the chip executes the method described in any of the above aspects.

[0016] In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by at least one processor, it implements the method described in any of the above aspects.

[0017] According to the technical solution of the embodiment of the present application, the terminal can explicitly indicate that the terminal is a low-capability terminal by sending a first message, and / or can also implicitly notify the terminal that the terminal is a low-capability terminal by sending a specific first signal at a specific first time unit. In this way, other terminals can identify that the type of the terminal is a low-capability terminal, thereby ensuring that the low-capability terminal can operate normally in the sideline system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1-1 is a schematic diagram of sideline communication within the network coverage area provided by an embodiment of the present application;

[0020] Figure 1-2 is a schematic diagram of partial network coverage sideline communication provided by an embodiment of the present application;

[0021] Figures 1-3 are schematic diagrams of network coverage outside line communications provided by embodiments of the present application;

[0022] Figures 1-4 are schematic diagrams of sideline communications with a central control node provided by embodiments of the present application;

[0023] FIG2-1 is a schematic diagram of a unicast transmission method provided in an embodiment of the present application;

[0024] Figure 2-2 is a schematic diagram of a multicast transmission method provided in an embodiment of the present application;

[0025] Figure 2-3 is a schematic diagram of a broadcast transmission method provided in an embodiment of the present application;

[0026] Figure 3-1 is a schematic diagram of the NR-V2X frame structure provided in an embodiment of the present application;

[0027] Figure 3-2 is a second schematic diagram of the NR-V2X frame structure provided in an embodiment of the present application;

[0028] FIG4 is a structural diagram of an S-SSB time slot provided in an embodiment of the present application;

[0029] FIG5 is a schematic diagram of NR-V2X synchronization resources provided in an embodiment of the present application;

[0030] FIG6 is a schematic diagram of a set of synchronization resources within a synchronization period provided by an embodiment of the present application;

[0031] FIG7 is a schematic flow chart of a method for determining a terminal type according to an embodiment of the present application;

[0032] FIG8 is a schematic diagram of a first time unit configuration according to an embodiment of the present application;

[0033] FIG9 is a second schematic diagram of a first time unit configuration provided in an embodiment of the present application;

[0034] FIG10 is a third schematic diagram of a first time unit configuration provided in an embodiment of the present application;

[0035] FIG11 is a fourth schematic diagram of a first time unit configuration according to an embodiment of the present application;

[0036] FIG12 is a schematic diagram of the first structure of a device for determining a terminal type according to an embodiment of the present application;

[0037] FIG13 is a second schematic diagram of the structure of the apparatus for determining the terminal type according to an embodiment of the present application;

[0038] FIG14 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0039] FIG15 is a schematic structural diagram of a chip according to an embodiment of the present application. DETAILED DESCRIPTION

[0040] The following will describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0041] The technical solutions of the embodiments of the present application can be applied to various side communication systems (also referred to as side systems for short). To facilitate understanding of the technical solutions of the embodiments of the present application, the relevant technologies in the side communication system are explained below. The following relevant technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all fall within the protection scope of the embodiments of the present application.

[0042] Sideline communication in different network coverage environments

[0043] In sideline communication, according to the network coverage of the communicating terminals, it can be divided into sideline communication within network coverage, sideline communication with partial network coverage, sideline communication outside network coverage, and sideline communication with a central control node, as shown in Figures 1-1, 1-2, 1-3, and 1-4 respectively.

[0044] As shown in Figure 1-1, in sideline communications within network coverage, all terminals performing sideline communications (such as terminal 1 and terminal 2 in Figure 1-1) are within the coverage range of the same base station. Therefore, the above terminals can all perform sideline communications based on the same sideline configuration by receiving configuration signaling from the base station.

[0045] As shown in Figure 1-2, in the case of partial network coverage for sidelink communication, some terminals performing sidelink communication (such as terminal 1 in Figure 1-2) are within the coverage of the base station. These terminals can receive configuration signaling from the base station and perform sidelink communication according to the configuration of the base station. However, terminals outside the network coverage (such as terminal 2 in Figure 1-2) cannot receive configuration signaling from the base station. In this case, the terminals outside the network coverage will determine the sidelink configuration based on pre-configuration information and information carried in the Physical Sidelink Broadcast Channel (PSBCH) sent by terminals within the network coverage, and perform sidelink communication.

[0046] As shown in Figure 1-3, for sideline communication outside the network coverage, all terminals performing sideline communication (such as terminal 1 and terminal 2 in Figure 1-3) are located outside the network coverage, and all terminals determine the sideline configuration according to the pre-configuration information for sideline communication.

[0047] As shown in Figure 1-4, for side communication with a central control node, multiple terminals form a communication group. The communication group has a central control node (such as terminal 1 in Figure 1-4), which can also become the cluster head terminal (Cluster Header, CH). The central control node has one of the following functions: responsible for establishing the communication group; joining and leaving the group members; coordinating resources, allocating side transmission resources to other terminals (such as terminal 2 and terminal 3 in Figure 1-4), receiving side feedback information from other terminals; coordinating resources with other communication groups, etc.

[0048] The terminal in the sideline system can be any terminal, including but not limited to a terminal that is connected to a network device and / or other terminals by wired or wireless connection. For example, the terminal can refer to an access terminal, user equipment (UE), a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, an IoT device, a satellite handheld terminal, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolution network, etc.

[0049] Resource selection method in sideline communication

[0050] Device-to-device (D2D) communication is a sidelink transmission technology based on device-to-device (D2D). Unlike traditional cellular systems, where communication data is received or sent via base stations, D2D communication offers higher spectrum efficiency and lower transmission latency. Sidelink communication utilizes direct device-to-device communication, and 3GPP defines two transmission modes: Mode 1 and Mode 2.

[0051] Mode 1: The base station allocates transmission resources to the terminal, and the terminal sends data on the sidelink based on the allocated resources. The base station can allocate resources for either single transmission or semi-static transmission. As shown in Figure 1-1, when the terminal is within network coverage, the network allocates transmission resources for sidelink transmission.

[0052] Mode 2: The terminal selects a resource from the resource pool for data transmission. As shown in Figure 1-3, if the terminal is outside the cell coverage area, it autonomously selects a transmission resource from the preconfigured resource pool for sidelink transmission. Alternatively, as shown in Figure 1-1, the terminal autonomously selects a transmission resource from the network-configured resource pool for sidelink transmission.

[0053] It should be noted that in the embodiment of the present application, the first mode may also be referred to as the first resource selection mode or mode 1, and the second mode may also be referred to as the second resource selection mode or mode 2. The technical solution of the embodiment of the present application does not limit the names of the first mode and the second mode.

[0054] Transmission method in NR-V2X

[0055] In NR-V2X, autonomous driving needs to be supported, which places higher requirements on data interaction between vehicles, such as higher throughput, lower latency, higher reliability, larger coverage, and more flexible resource allocation.

[0056] LTE-V2X supports broadcast transmission, while NR-V2X introduces unicast and multicast transmission. For unicast transmission, there is only one receiving terminal. As shown in Figure 2-1, unicast transmission is carried out between Terminal 1 and Terminal 2. For multicast transmission, the receiving terminals are all terminals in a communication group or all terminals within a certain transmission distance. As shown in Figure 2-2, Terminals 1, 2, 3, and 4 form a communication group. Terminal 1 transmits data, and all other terminals in the group are receiving terminals. For broadcast transmission, the receiving terminal is any terminal in the vicinity of the transmitting terminal. As shown in Figure 2-3, Terminal 1 is the transmitting terminal, and all other terminals in the vicinity, Terminals 2 through 6, are receiving terminals.

[0057] Second-order SCI mechanism in NR-V2X

[0058] Second-order sidelink control information (SCI) is introduced in NR-V2X. The first-order SCI is carried in the physical sidelink control channel (PSCCH) and is used to indicate the transmission resources, reserved resource information, modulation and coding scheme (MCS) level, priority and other information of the physical sidelink shared channel (PSSCH). The second-order SCI is sent in the PSSCH resources and demodulated using the demodulation reference signal (DMRS) of the PSSCH. It is used to indicate the transmitter ID, receiver ID, hybrid automatic repeat reQuest (HARQ) ID, new data indicator (NDI) and other information used for data demodulation.

[0059] NR-V2X system frame structure

[0060] For example, the time slot structure in NR-V2X is shown in Figures 3-1 and 3-2. A time slot includes 14 side symbols. Each rectangular box in Figures 3-1 and 3-2 represents a side symbol, and the side symbol can be an orthogonal frequency division multiplexing (OFDM) symbol (also referred to as a symbol for short).

[0061] Figure 3-1 shows the timeslot structure without the Physical Sidelink Feedback Channel (PSFCH); Figure 3-2 shows the timeslot structure with the PSFCH. In both Figures 3-1 and 3-2, the PSCCH begins in the time domain at the second sidelink symbol of the timeslot and occupies two or three symbols. In the frequency domain, it can occupy {10, 12, 15, 20, 25} Physical Resource Blocks (PRBs). To reduce the complexity of blind PSCCH detection by terminals, only one number of PSCCH symbols and PRBs is allowed in a resource pool. Furthermore, because subchannels are the minimum granularity for PSSCH resource allocation in NR-V2X, the number of PRBs occupied by the PSCCH must be less than or equal to the number of PRBs contained in a subchannel within the resource pool to avoid additional restrictions on PSSCH resource selection or allocation. The PSSCH also begins in the time domain at the second sidelink symbol of the timeslot. The last sidelink symbol in a time slot is a guard period (GP) symbol, and the remaining symbols are mapped to the PSSCH. The first sidelink symbol in a time slot is a repetition of the second sidelink symbol. The receiver typically uses the first sidelink symbol as an automatic gain control (AGC) symbol, and the data on this symbol is not typically used for data demodulation. The PSSCH occupies K (K ≥ 1) subchannels in the frequency domain, each of which consists of N (N ≥ 1) consecutive PRBs. In Figure 3-2, the time slot contains the PSFCH. The second-to-last and third-to-last symbols in the time slot are used for PSFCH transmission, and the symbol preceding the PSFCH is used as a GP symbol.

[0062] Side synchronization

[0063] 1) Sidelink Synchronization Signal Block (SSB)

[0064] In the sidelink system, the terminal can use the base station or the Global Navigation Satellite System (GNSS) as the original reference synchronization source. In addition, in order to ensure that sidelink communications can proceed normally in different coverage environments, the sidelink system supports the terminal as the reference synchronization source. When the terminal serves as the reference synchronization source, the terminal needs to send the sidelink synchronization signal (SLSS) and the physical sidelink broadcast channel (PSBCH) to provide synchronization information and necessary sidelink configuration information to other terminals. In the sidelink system, SLSS and PSBCH are sent in the same time slot, which is called the S-SSB time slot. The SLSS is further divided into the sidelink primary synchronization signal (S-PSS) and the sidelink secondary synchronization signal (S-SSS). The structure of the S-SSB time slot is shown in Figure 4. It should be noted that each rectangular box in Figure 4 represents a symbol, S-PSS occupies 2 symbols, S-SSS occupies 2 symbols, the last symbol in the time slot is used as the GP symbol, and the remaining symbols are used for PSBCH transmission.

[0065] 2) Synchronize resources

[0066] After the terminal obtains synchronization information from the synchronization source, it needs to send a sidelink synchronization signal and PSBCH (i.e., S-SSB) on the sidelink to assist other terminals in obtaining synchronization information. The resources used to transmit the sidelink synchronization signal and PSBCH are called sidelink synchronization resources (referred to as synchronization resources for short).

[0067] Due to the limitation of half-duplex, when a terminal sends a signal on a carrier, it cannot receive a signal on the carrier at the same time. In order to avoid the terminal being unable to receive the side data sent by other terminals when sending the side synchronization signal, resulting in the loss of side data, in the side link transmission, the synchronization resources and the side data transmission resources are time division multiplexed (Time-Division Multiplexing, TDM), that is, S-SSB and side data are not supported in a frequency division multiplexing (FDM) manner. Specifically, when determining the resource pool for side data transmission, the time slot where the synchronization resource is located will be excluded, that is, the time slot where the synchronization resource is located will not be included in the resource pool. The time slot where the synchronization resource is located is also the S-SSB time slot.

[0068] The period of synchronization resources in the NR-V2X system (also called the synchronization period) is 160ms, and the number of time slots included in a synchronization period is 160*2^μ, where μ=0, 1, 2, 3 correspond to subcarrier spacings of 15kHz, 30kHz, 60kHz, and 120kHz, respectively. Also due to the limitation of half-duplex, the terminal needs to send and receive side synchronization signals on different time domain resources. Therefore, at least two sets of synchronization resources are configured in each synchronization period for sending or receiving S-SSBs respectively. When a carrier has GNSS as the highest priority, in order to avoid mutual interference between the S-SSBs sent by terminals within the cell and the S-SSBs sent by terminals outside the cell, an additional set of synchronization resources may be configured on the carrier, that is, the third set of synchronization resources. When a terminal located outside the network coverage and directly synchronized to the GNSS sends an S-SSB, the third set of synchronization resources will be used.

[0069] R16NR-V2X does not support beam-based sidelink transmissions. However, to improve S-SSB detection performance, each set of synchronization resources includes multiple transmission opportunities for S-SSB transmissions. If beam-based sidelink transmissions are introduced in subsequent releases, terminals can use different beams to send S-SSBs in multiple transmission opportunities.

[0070] For example, Figure 5 shows a schematic diagram of an NR-V2X synchronization resource. The synchronization period is 160ms, and two sets of synchronization resources are configured in each synchronization period, which are recorded as the first set of synchronization resources and the second set of synchronization resources. Four synchronization time slots (i.e., four S-SSB time slots or four transmission opportunities) are configured in each set of synchronization resources, and the transmitter can send S-SSBs on each of the four synchronization time slots. When the receiver detects a sideline synchronization signal on a certain synchronization time slot, based on the direct frame number (DFN) and time slot number carried in the PSBCH transmitted simultaneously with the sideline synchronization signal, the receiver can determine whether the synchronization time slot belongs to the first set of synchronization resources or the second set of synchronization resources, and then select the four synchronization time slots of the other set of synchronization resources to send S-SSBs.

[0071] For any set of synchronization resources within a synchronization period, you can determine each synchronization time slot contained in the set of synchronization resources (i.e., the time slot where the synchronization resource is located) by configuring the following three parameters:

[0072] Parameter 1: Number of synchronization slots within a period (sl-NumSSB-WithinPeriod): This parameter is used to indicate the number of synchronization slots included in a set of synchronization resources within a synchronization period. Specifically, for different subcarrier spacings in FR1 and FR2, the number of synchronization slots supported in each set of synchronization resources can be referred to in the following Table 1:

[0073] Table 1

[0074] Parameter 2: Synchronization time slot offset (sl-TimeOffsetSSB): This parameter is used to indicate the time slot offset of the first synchronization resource in each set of synchronization resources within a synchronization period relative to the synchronization period boundary;

[0075] Parameter 3: Time interval (sl-TimeInterval): This parameter is used to indicate the time slot interval between two adjacent synchronization resources in each set of synchronization resources within a synchronization cycle.

[0076] The above three parameters may be configured by the network device, agreed upon by the protocol, or predefined.

[0077] For example, Figure 6 shows a set of synchronization resources within a synchronization period. The synchronization period is 160ms. When the subcarrier spacing is 60KHz, a synchronization period includes 640 time slots. A set of synchronization resources is configured to include 4 synchronization time slots, that is, sl-NumSSB-WithinPeriod=4, the offset of the first synchronization resource in a set of synchronization resources relative to the period boundary is 15 time slots, that is, sl-TimeOffsetSSB=15, and the time slot interval between two adjacent synchronization resources in a set of synchronization resources is 10 time slots, that is, sl-TimeInterval=10. It can be determined that the time slots where the four synchronization resources are located are time slots 15, 25, 35, and 45 respectively.

[0078] Low-capability terminals

[0079] Low Capability (RedCap) is a 5G technology defined by 3GPP. 5G offers significant advantages over 4G in terms of communication speed, latency, and reliability, but this also increases the complexity and cost of terminal design. The high cost of terminals makes this unacceptable in many actual commercial deployment scenarios. In these scenarios, terminals have lower communication performance requirements and do not need to support 5G's most powerful features, but they have higher cost and power consumption requirements. Therefore, to achieve a balance between performance and cost and better meet the cost and power reduction needs of the Industrial Internet and the Internet of Things, 3GPP Rel-17 defined a low-capability terminal type. Low-capability terminals can reduce terminal cost and power consumption through technologies such as reduced bandwidth, fewer antennas, and lower modulation order.

[0080] 3GPP Release 18 (SL) is promoting the standardization of sidewalk technology deployed in unlicensed frequency bands, known as SL-U technology. SL-U technology can be deployed in commercial scenarios such as wearable smart devices, smart homes, and the Industrial Internet. In the Rel-18 (SL) discussion, all terminals had the same capabilities, and low-capability terminals were not considered. However, terminal cost and power consumption are crucial metrics for commercial deployment. The low cost and power consumption offered by low-capability terminals could facilitate the commercialization of SL-U technology. Therefore, standardization of SL-U RedCap technology could be considered in Release 19 (SL).

[0081] After a low-capability terminal is introduced into the sidewalk system, the low-capability terminal needs to notify other terminals in the sidewalk system that it is a low-capability terminal. Therefore, it is necessary to clarify how the low-capability terminal in the sidewalk system notifies other terminals that it is a low-capability terminal. To this end, the following technical solutions are proposed in the embodiments of the present application.

[0082] It should be understood that the terms "system" and "network" are often used interchangeably in this document. The term "and / or" in this document is merely a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this document generally indicates that the objects associated before and after are in an "or" relationship. It should also be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B. It should also be understood that the "correspondence" mentioned in the embodiments of this application can mean that there is a direct or indirect correspondence between the two, or it can mean that there is an association relationship between the two, or it can mean a relationship between indication and indication, configuration and configuration, etc. It should also be understood that the "predefined" or "predefined rules" mentioned in the embodiments of the present application can be implemented by pre-saving corresponding codes, tables, or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices). This application does not limit its specific implementation method. For example, predefined can refer to those defined in the protocol. It should also be understood that in the embodiments of the present application, the "protocol" can refer to a standard protocol in the field of communications.

[0083] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The above related technologies can be combined arbitrarily with the technical solutions of the embodiments of the present application as optional solutions, and all of them fall within the scope of protection of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0084] When low-capability terminals are introduced into the sidewalk system, in order to ensure normal communication between terminals with different capabilities, the low-capability terminals need to notify their terminal type in advance that it is a low-capability terminal before communicating data services with other terminals, so that other terminals can clearly understand the existence of low-capability terminals in the sidewalk system, thereby ensuring that communication links can be successfully established between terminals with different capabilities.

[0085] FIG7 is a flow chart of a method for determining a terminal type according to an embodiment of the present application. As shown in FIG7 , the method includes one or more of the following steps:

[0086] Step 701: The first terminal sends first information and / or sends a first signal in a first time unit; the first information is used to indicate that the first terminal is a low-capability terminal; the first time unit is used for the low-capability terminal to send the first signal; the first terminal is a terminal in the sideline system.

[0087] Step 702: The second terminal receives first information and / or receives a first signal in a first time unit; the first information is used to indicate that the first terminal is a low-capability terminal; the first time unit is used for the low-capability terminal to send a first signal; the second terminal is a terminal in the sideline system.

[0088] In the embodiments of the present application, the first terminal and the second terminal are terminals in a sidewalk system. In some embodiments, the sidewalk system may be an SL-U system. The first terminal is a low-capability terminal. The second terminal may be of a different or the same type as the first terminal. That is, the second terminal may be a traditional terminal (i.e., not a low-capability terminal) or a low-capability terminal.

[0089] In an embodiment of the present application, a low-capability terminal may use an "explicit notification method" and / or an "implicit notification method" to notify other terminals of its terminal type. The "explicit notification method" refers to the terminal sending a newly defined information (referred to herein as the first information), which contains relevant information about the low-capability terminal. The receiving end can know that the sending end is a low-capability terminal by receiving and decoding the information. The "implicit notification method" refers to the terminal sending a special signal (referred to herein as the first signal) at a special time unit (referred to herein as the first time unit). If the receiving end receives the above-mentioned special signal at the above-mentioned special time unit, it can be known that the sending end is a low-capability terminal.

[0090] The following describes the explicit notification method (corresponding to solution 1 below) and the implicit notification method (corresponding to solution 2 below) respectively.

[0091] Option 1

[0092] A first terminal sends first information, wherein the first information is used to indicate that the first terminal is a low-capability terminal. A second terminal receives the first information and determines that the first terminal is a low-capability terminal based on the first information.

[0093] In some embodiments, the first terminal sends the first information to the second terminal in a unicast manner. In other embodiments, the first terminal sends the first information in a broadcast manner. In yet another embodiment, the first terminal sends the first information in a multicast manner.

[0094] In some implementations, the first information may also be referred to as first identification information or low-capability identification information, that is, the first information, the first identification information, and the low-capability identification information may be interchangeable.

[0095] The first information includes relevant information of a low-capability terminal (or low capability), and is used to indicate that the terminal type of the sender of the first information (ie, the first terminal) is a low-capability terminal.

[0096] In some embodiments, the first information includes at least one of the following:

[0097] first indication information, where the first indication information is used to indicate that the first terminal is a low-capability terminal or to indicate whether the first terminal is a low-capability terminal;

[0098] First terminal capability information, where the first terminal capability information includes one or more capability information of the first terminal.

[0099] Exemplarily, the first indication information is represented by one bit, and this bit value is set to "1," indicating that the terminal is a low-capability terminal. If the transmitting end is a low-capability terminal, the bit value is set to "1" when transmitting the first indication information. If the receiving end receives the bit value indicating the first indication information as "1," the transmitting end is determined to be a low-capability terminal. Here, the transmitting end is the first terminal, and the receiving end is the second terminal. Furthermore, if the transmitting end is not a low-capability terminal, the first indication information need not be transmitted.

[0100] In the above example, a bit value of "1" indicates that the terminal is a low-capability terminal. However, the present invention is not limited thereto, and a bit value of "0" may also indicate that the terminal is a low-capability terminal.

[0101] Exemplarily, the first indication information is represented by 1 bit, and the bit value is set to "1" to indicate that the terminal is a low-capability terminal, and the bit value is set to "0" to indicate that the terminal is not a low-capability terminal (or a traditional terminal). If the sending end is a low-capability terminal, the bit value is set to "1" when sending the above-mentioned first indication information; if the receiving end receives the bit value representing the first indication information as "1", it is determined that the sending end is a low-capability terminal. The sending end here is the above-mentioned first terminal, and the receiving end is the above-mentioned second terminal. In addition, if the sending end is not a low-capability terminal, the bit value is set to "0" when sending the above-mentioned first indication information; if the receiving end receives the bit value representing the first indication information as "0", it is determined that the sending end is not a low-capability terminal (or a traditional terminal).

[0102] In the above example, a bit value of "1" indicates that the terminal is a low-capability terminal, and a bit value of "0" indicates that the terminal is not a low-capability terminal. This is not limited to this, and a bit value of "0" may also indicate that the terminal is a low-capability terminal, and a bit value of "1" may indicate that the terminal is not a low-capability terminal.

[0103] The first terminal capability information includes one or more capability information of the first terminal, and the one or more capability information of the first terminal is used to determine whether the type of the first terminal is a low-capability terminal or to determine whether the type of the first terminal is a low-capability terminal.

[0104] In some embodiments, the first terminal capability information (i.e., one or more capability information of the first terminal) includes at least one of the following:

[0105] a modulation order supported by the first terminal;

[0106] the highest modulation order supported by the first terminal;

[0107] a bandwidth supported by the first terminal;

[0108] the maximum bandwidth supported by the first terminal;

[0109] the number of antennas supported by the first terminal;

[0110] The number of Multiple-Input Multiple-Output (MIMO) streams supported by the first terminal.

[0111] Terminals with different capabilities support different capabilities. For example, terminals with different capabilities may support at least one of the following capabilities: modulation order, maximum modulation order, bandwidth, maximum bandwidth, number of antennas, and number of MIMO streams. Therefore, whether a terminal is a low-capability terminal can be determined based on the terminal's supported capabilities.

[0112] Exemplarily, for a low-capability terminal, the capabilities it supports include at least one of the following: a modulation order of up to 64QAM, a maximum bandwidth of 20 MHz, 1 antenna number, and 1 MIMO stream number.

[0113] After the receiving end receives one or more of the above-mentioned capability information of the first terminal, it can determine whether the first terminal is a low-capability terminal based on at least one of the modulation order supported by the first terminal, the highest modulation order supported by the first terminal, the bandwidth supported by the first terminal, the maximum bandwidth supported by the first terminal, the number of antennas supported by the first terminal, and the number of MIMO streams supported by the first terminal.

[0114] As an implementation, the first information may include only the first terminal capability information and not the first indication information. After receiving the first information, the receiving end may obtain the first terminal capability information of the sending end, and the receiving end may determine whether the sending end is a low-capability terminal based on the first terminal capability information.

[0115] As an implementation, the first information may include only the first indication information, but not the first terminal capability information. After receiving the first information, the receiving end may obtain the first indication information, and the receiving end may determine whether the sending end is a low-capability terminal based on the first indication information.

[0116] As an implementation, the first information may include both the first indication information and the first terminal capability information. Upon receiving the first information, the receiving end may obtain the first indication information and the first terminal capability information. Based on the first indication information, the receiving end may determine whether the sending end is a low-capability terminal. Based on the first terminal capability information, the receiving end may determine the capabilities supported by the sending end, thereby also determining whether the sending end is a low-capability terminal.

[0117] The following describes the transmission method of the first information.

[0118] Method 1

[0119] The first information is carried in a first signaling, and the first signaling includes one or more of the following signalings: SCI, Media Access Control Control Element (MAC CE).

[0120] In some implementations, all of the first information is carried in a MAC CE.

[0121] Exemplarily, the first information includes first indication information and / or first terminal capability information, and all of the first information is carried in the MAC CE. Here, the understanding of the first indication information and the first terminal capability information can refer to the above related description.

[0122] In some implementations, a portion of the first information is carried in the SCI, and another portion of the first information is carried in the MAC CE.

[0123] Exemplarily, the first information includes first indication information and first terminal capability information, the first indication information in the first information is carried in the SCI, and the first terminal capability information in the first information is carried in the MAC CE. Here, the relevant understanding of the first indication information and the first terminal capability information can refer to the aforementioned relevant description.

[0124] In some implementations, all of the first information is carried on the SCI.

[0125] Exemplarily, the first information includes first indication information, and the entire first information is carried in the SCI. Here, the understanding of the first indication information can refer to the above description.

[0126] It should be noted that the overhead of the first indication information is relatively small, the overhead of the first terminal capability information is relatively large, the capacity of SCI is relatively small, and the capacity of MAC CE is relatively large, so the first indication information can be carried on SCI and the first terminal capability information can be carried on MAC CE.

[0127] In some implementations, the priority of the MAC CE is determined based on at least one of: protocol predefined information, preconfigured information, and network configuration information. Exemplarily, the priority of the MAC CE is the highest priority. The priority of the MAC CE determines the priority order of transmission and / or processing of the MAC CE.

[0128] In some embodiments, the first signaling is carried on a first physical sidelink channel, the first physical sidelink channel includes a PSCCH and / or a PSSCH; and / or the first signaling is transmitted on a first time slot.

[0129] Here, the time slot where the first physical side channel is located is the first time slot. Based on this understanding, the first signaling is carried on the first physical side channel, which can be understood as the first signaling is transmitted in the first time slot.

[0130] In some implementations, the first physical sidelink channel only carries the first signaling; and / or, only the first signaling is transmitted in the first time slot.

[0131] In other embodiments, the first physical sidelink channel carries not only the first signaling but also unicast link-related information; and / or, not only the first signaling but also unicast link-related information is transmitted in the first timeslot. That is, the first signaling and unicast link-related information are carried on the same physical sidelink channel, and / or the first signaling and unicast link-related information are transmitted in the same timeslot.

[0132] In some implementations, the unicast link related information is direct communication request (DCR) information. In other implementations, the unicast link related information is direct communication accept (DCA) information.

[0133] The following describes the transmission method of the first information in conjunction with specific application scenarios.

[0134] During the process of establishing an SL PC5 unicast link between terminals, information related to the establishment of the unicast link, namely, DCR information and DCA information, needs to be transmitted between the two terminals in the unicast link. For example, UE A sends DCR information via unicast or broadcast, thereby initiating a unicast establishment request; if UE B needs to establish a unicast link with UE A, UE B needs to respond to the above DCR information and subsequently send DCA information to UE A. It should be noted that the above DCR information and DCA information are high-level descriptions. From the perspective of the physical layer, the above DCR information and DCA information are both carried on PSCCH / PSSCH transmission.

[0135] A low-capability terminal sends first information during the process of establishing a unicast link. The first information and information related to establishing the unicast link (DCR information or DCA information) are transmitted simultaneously. That is, the first information and information related to establishing the unicast link are transmitted in the same time slot, or in other words, the first information and information related to establishing the unicast link are carried on the same PSCCH / PSSCH. As an implementation method, the entire content of the first information can be carried by the same signaling. For example, the entire content of the first information is carried in a MAC CE. The priority corresponding to the MAC CE is determined according to protocol predefined information, preconfigured information, or network configuration information. Exemplarily, the priority is the highest priority. As another implementation method, part of the first information can be carried by one signaling, and the other part can be carried by another signaling. For example, the first indication information in the first information is carried by the SCI, and the first terminal capability information in the first information is carried by the MAC CE. The priority corresponding to the MAC CE is determined according to protocol predefined information, preconfigured information, or network configuration information. Exemplarily, the priority is the highest priority.

[0136] In one scenario, during the process of establishing a unicast link, a low-capability terminal is the source terminal initiating the unicast link establishment. For example, UE A is a low-capability terminal and, in this case, UE A is the source terminal establishing the unicast link, while UE B is the target terminal. UE A sends the DCR information simultaneously with the first information via unicast or broadcast. After receiving the first information, UE B can determine that UE A is a low-capability terminal.

[0137] In another scenario, during the process of establishing a unicast link, a low-capability terminal is the target terminal responding to other terminals. For example, UE A is the source terminal establishing a unicast link, UE B is the target terminal, and UE B is a low-capability terminal. First, UE A sends DCR information via unicast or broadcast. After receiving this DCR information, if UE B needs to establish a unicast link with UE A, it sends a first message simultaneously with the DCR information. After receiving this first message, UE A can determine that UE B is a low-capability terminal.

[0138] Method 2

[0139] The first information is carried in PC5-RRC signaling.

[0140] Here, the first information sent by the low-capability terminal is carried in the PC5-RRC signaling. It should be noted that PC5-RRC signaling only exists in the unicast link. Therefore, when the low-capability terminal sends the first information, the low-capability terminal has successfully established a unicast link with other terminals, that is, the first information is sent to the terminal that establishes a unicast link with the low-capability terminal.

[0141] In some embodiments, the physical resources used to transmit the first information are scheduled by the network, i.e., the resource selection method for sideline communication is the first mode. In other embodiments, the physical resources used to transmit the first information are selected by the first terminal, i.e., the resource selection method for sideline communication is the second mode. For understanding the first and second modes, please refer to the aforementioned related solutions.

[0142] It should be noted that, because different terminals may support different terminal capabilities, the unicast link establishment process may be performed in a default configured frequency domain resource set. Exemplarily, the frequency domain resource set may be a sidelink resource pool or a sidelink BWP. As an implementation, the frequency domain resource set is configured or pre-configured by the network device.

[0143] Option 2

[0144] The first terminal sends a first signal in a first time unit; the first time unit is used for low-capability terminals to send first signals. If the second terminal receives the first signal sent by the first terminal in the first time unit, it determines that the first terminal is a low-capability terminal.

[0145] In some implementations, the first time unit may be an additionally configured sideline synchronization resource (referred to as a synchronization resource), and it is necessary to ensure that the additionally configured synchronization time slot does not overlap with the synchronization resource conventionally used for sideline synchronization. It should be noted that after the additional synchronization resource is configured, the first signal is sent on the additional synchronization resource only if the terminal is a low-capability terminal.

[0146] In some embodiments, the first signal is S-SSB.

[0147] In some implementations, the first signal is not used for the synchronization process.

[0148] In some embodiments, the first time unit includes one or more first time domain resources, where the first time domain resources refer to time domain resources used to transmit the first signal.

[0149] Here, the first time domain resource is used to transmit the first signal, and thus the first time domain resource can also be understood as a transmission opportunity for the first signal. As an implementation manner, the first time domain resource can be a time slot or a time slot resource used to transmit the first signal.

[0150] In some implementations, the configuration information of the first time unit is determined based on at least one of the following: pre-configuration information and network configuration information.

[0151] In some implementations, the first time unit is included in a sidelink resource pool.

[0152] The configuration of the first time unit is described below.

[0153] Method A

[0154] Based on one or more sets of synchronization resources configured in the synchronization period, one or more first time domain resources (such as time slots) are added to each set of synchronization resources for transmitting the first signal. The first time unit includes the one or more first time domain resources.

[0155] In some embodiments, the configuration information of the first time unit includes at least one of the following:

[0156] First information, the first information is used to determine the length of the cycle;

[0157] Second information, the second information is used to determine one or more sets of resources within a period;

[0158] The third information is used to determine the resources belonging to the first time unit in at least one set of resources within the period.

[0159] Exemplarily, the length of the first information indication period (which may be referred to as a synchronization period) is 160 ms.

[0160] Exemplarily, the second information is used to configure one or more sets of resources in each cycle. The second information may include the following parameters:

[0161] Parameter 1: Number of synchronization slots within a period (sl-NumSSB-WithinPeriod): This parameter is used to indicate the number of resources included in a set of resources within a period;

[0162] Parameter 2: Synchronous time slot offset (sl-TimeOffsetSSB): This parameter is used to indicate the time slot offset of the first resource in each set of resources within a cycle relative to the synchronization cycle boundary;

[0163] Parameter 3: Time interval (sl-TimeInterval): This parameter is used to indicate the time slot interval between two adjacent resources in each set of resources within a cycle.

[0164] Exemplarily, the third information is used to configure resources belonging to the first time unit in at least one set of resources within a period.

[0165] It should be noted that the above-mentioned resources can be referred to as synchronization resources, which refer to resources used to send S-SSBs. Among the above-mentioned synchronization resources, some resources belong to the first time unit. The S-SSBs sent on these resources are not used for synchronization, and the S-SSBs sent on the remaining resources are used for synchronization.

[0166] In some embodiments, the third information includes at least one of the following:

[0167] A first parameter, where the first parameter is used to indicate the number of first time domain resources included in each set of resources in at least one set of resources;

[0168] A second parameter, where the second parameter is used to indicate an index of a first first time domain resource included in each set of resources in at least one set of resources;

[0169] The third parameter is used to indicate the time interval between two adjacent first time domain resources in each set of resources in at least one set of resources.

[0170] Here, the first time domain resources refer to resources belonging to the first time unit.

[0171] Exemplarily, the first parameter is used to indicate that each set of resources includes X first time domain resources.

[0172] Exemplarily, the second parameter is used to indicate that the index of the first first time domain resource included in each set of resources is #Y.

[0173] Exemplarily, the third parameter is used to indicate that the time interval between two adjacent first time domain resources in each set of resources is T1.

[0174] As an implementation, the third information includes only the first parameter. Therefore, it is assumed that the last X resources in each set of resources belong to the first time domain resources, where X is indicated by the first parameter. Furthermore, the time interval between two adjacent first time domain resources can be indicated by parameter 3 in the second information.

[0175] As an implementation, the third information includes only the second parameter. In this case, starting with the resource indexed #Y in each resource set, all subsequent resources belong to the first time domain resources, where #Y is indicated by the second parameter. Furthermore, the time interval between two adjacent first time domain resources can be indicated by parameter 3 in the second information.

[0176] As an implementation method, the third information includes the first parameter and the third parameter. Then, by default, the last X resources in each set of resources belong to the first time domain resources, X is indicated by the first parameter, and the time interval between two adjacent first time domain resources can be indicated by the above-mentioned third parameter.

[0177] As an implementation method, the third information includes a second parameter and a third parameter. Then, starting from the resource indexed as #Y in each set of resources, all subsequent resources belong to the first time domain resources, #Y is indicated by the second parameter, and the time interval between two adjacent first time domain resources can be indicated by the above-mentioned third parameter.

[0178] As an implementation, the third information includes a first parameter and a second parameter. In each set of resources, starting with the resource indexed #Y, the following X resources belong to the first time domain resources, where X is indicated by the first parameter and #Y is indicated by the second parameter. Furthermore, the time interval between two adjacent first time domain resources can be indicated by the aforementioned parameter 3.

[0179] As an implementation method, the third information includes a first parameter, a second parameter, and a third parameter. In each set of resources, starting from the resource indexed as #Y, the subsequent X resources belong to the first time domain resources, X is indicated by the first parameter, #Y is indicated by the second parameter, and the time interval between two adjacent first time domain resources can be indicated by the above-mentioned third parameter.

[0180] In some embodiments, the first time unit occurs in every cycle.

[0181] In some other embodiments, the first time unit does not appear in every cycle, that is, there is a periodic interval between two adjacent cycles in which the first time unit appears. In this case, the configuration information of the first time unit also includes fifth information, which is used to determine the periodic interval between two adjacent cycles in which the first time unit appears.

[0182] The configuration of the first time unit is described below with reference to a specific example.

[0183] X time slots (i.e., X first time domain resources) are additionally configured in each set of synchronization resources within a week. The X time slots belong to the first time unit, and X is a positive integer greater than or equal to 1. As shown in Figure 8, two sets of resources are configured within a synchronization period (160ms), with a subcarrier spacing of 30KHz, and each set of resources contains two resources for synchronization. An additional resource is added to each set of synchronization resources for low-capability terminals to send the first signal, i.e., X=1. In other words, a set of resources contains three resources, and the time slot indexes of the three resources are #0, #1, and #2, respectively. Among them, the resource with time slot index #2 is used for low-capability terminals to send the first signal.

[0184] In some embodiments, the first time unit occurs in every synchronization cycle. In other embodiments, the first time unit does not occur in every synchronization cycle, and resources for the first time unit may be configured every N synchronization cycles, where N is a positive integer greater than or equal to 1. N depends on preconfigured information or network configuration information. As shown in Figure 9, resources for the first time unit are configured every synchronization cycle, with resources for the first time unit being configured in the first 160ms synchronization cycle and the third 160ms synchronization cycle.

[0185] Method B

[0186] An additional set of resources is configured within the synchronization period for transmitting the first signal, and the additional set of resources includes one or more first time domain resources.

[0187] In some embodiments, the configuration information of the first time unit includes at least one of the following:

[0188] First information, the first information is used to determine the length of the cycle;

[0189] The fourth information is used to determine a set of resources within a period, where the resources in the set of resources are resources belonging to the first time unit.

[0190] Exemplarily, the length of the first information indication period (which may be referred to as a synchronization period) is 160 ms.

[0191] In some embodiments, the fourth information includes at least one of the following:

[0192] A fourth parameter, which is used to indicate the number of first time domain resources included in a set of resources;

[0193] A fifth parameter, the fifth parameter is used to indicate a time offset of a first first time domain resource in a set of resources relative to a cycle boundary;

[0194] The sixth parameter is used to indicate the time interval between two adjacent first time domain resources in a set of resources.

[0195] Exemplarily, the fourth parameter may be expressed as the number of synchronization slots within a period (sl-NumSSB-WithinPeriod).

[0196] Exemplarily, the fifth parameter may be expressed as a synchronization time slot offset (sl-TimeOffsetSSB).

[0197] Exemplarily, the sixth parameter may be expressed as a time interval (sl-TimeInterval).

[0198] In some implementations, the unit of the time offset and / or time interval is a time slot.

[0199] It should be noted that the first time domain resource cannot be located in the same time slot as the time domain resource used for synchronization.

[0200] As an implementation manner, if the first time unit includes only one first time domain resource, only the fifth parameter is needed to determine the time domain position of the first time domain resource, that is, the fourth information may only include the fifth parameter.

[0201] In some embodiments, the first time unit occurs in every cycle.

[0202] In some other embodiments, the first time unit does not appear in every cycle, that is, there is a periodic interval between two adjacent cycles in which the first time unit appears. In this case, the configuration information of the first time unit also includes fifth information, which is used to determine the periodic interval between two adjacent cycles in which the first time unit appears.

[0203] The configuration of the first time unit is described below with reference to a specific example.

[0204] In a synchronization cycle, a first time unit is configured for transmitting a first signal. The first time unit includes one or more time slots (i.e., one or more first time domain resources). The position of the first time slot in the first time unit is determined by the first offset (i.e., the information indicated by the fifth parameter), and the positions of subsequent time slots in the first time unit are determined according to the first offset (i.e., the information indicated by the fifth parameter) and the first time interval (i.e., the information indicated by the sixth parameter). For example, the first time unit includes 3 time slots. If the first offset is 20, the position of the first time slot in the first time unit is the 20th time slot in a synchronization cycle. If the first time interval is 5, the second and third time slots are the 25th and 30th time slots in the synchronization cycle. As shown in Figure 10, two sets of resources are configured in a synchronization cycle (160ms), namely the first set of synchronization resources and the second set of synchronization resources. Each set of synchronization resources includes two resources, and the subcarrier spacing is 30KHz. On this basis, an additional set of resources is configured, namely the first time unit. The first time unit includes 2 resources. The time domain positions of the 2 resources can be determined based on the first offset (i.e., the information indicated by the fifth parameter) and the first time interval (i.e., the information indicated by the sixth parameter).

[0205] In some embodiments, the first time unit occurs in every synchronization cycle. In other embodiments, the first time unit does not occur in every synchronization cycle, and resources for the first time unit may be configured every N synchronization cycles, where N is a positive integer greater than or equal to 1. N depends on preconfigured information or network configuration information. As shown in Figure 11, resources for the first time unit are configured every synchronization cycle, with resources for the first time unit being configured in the first 160ms synchronization cycle and the third 160ms synchronization cycle.

[0206] According to the technical solution of the embodiment of the present application, a low-capability terminal can explicitly indicate that the terminal is a low-capability terminal by sending a first message, or can implicitly notify the receiving end of the existence of a low-capability terminal by sending a special signal at a special time unit. In this way, terminals with different capabilities can be assisted to successfully establish communication links, thereby ensuring that the low-capability terminal can operate normally in the sideline system.

[0207] The preferred embodiments of the present application are described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, the technical solution of the present application can be subjected to a variety of simple modifications, and these simple modifications all fall within the scope of protection of the present application. For example, the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present application will no longer describe the various possible combinations separately. For another example, the various different embodiments of the present application can also be arbitrarily combined, as long as they do not violate the idea of ​​the present application, they should also be regarded as the contents disclosed in the present application. For another example, under the premise of no conflict, the various embodiments and / or the technical features in each embodiment described in the present application can be arbitrarily combined with the prior art, and the technical solution obtained after the combination should also fall within the scope of protection of the present application.

[0208] It should also be understood that in the various method embodiments of the present application, the sequence numbers of the above-mentioned processes do not imply a precedence in the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. In addition, in the embodiments of the present application, the terms "downlink," "uplink," and "sidelink" are used to indicate the transmission direction of signals or data, where "downlink" is used to indicate the first direction of transmission of signals or data from a site to a user equipment in a cell, "uplink" is used to indicate the second direction of transmission of signals or data from a user equipment in a cell to a site, and "sidelink" is used to indicate the third direction of transmission of signals or data from user equipment 1 to user equipment 2. For example, "downlink signal" indicates that the transmission direction of the signal is the first direction. In addition, in the embodiments of the present application, the term "and / or" is merely a description of the association relationship between associated objects, indicating that three relationships can exist. Specifically, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0209] FIG12 is a schematic diagram of the first structure of a device for determining a terminal type according to an embodiment of the present application. The device is applied to a first terminal. As shown in FIG12 , the device includes:

[0210] The sending unit 1201 is used to send first information and / or send a first signal in a first time unit; the first information is used to indicate that the first terminal is a low-capability terminal; the first time unit is used for the low-capability terminal to send the first signal; the first terminal is a terminal in the sideline system.

[0211] In some embodiments, the first information includes at least one of the following:

[0212] First indication information, where the first indication information is used to indicate that the first terminal is a low-capability terminal;

[0213] First terminal capability information, where the first terminal capability information includes one or more capability information of the first terminal.

[0214] In some implementations, the first terminal capability information includes at least one of the following:

[0215] a modulation order supported by the first terminal;

[0216] the highest modulation order supported by the first terminal;

[0217] a bandwidth supported by the first terminal;

[0218] the maximum bandwidth supported by the first terminal;

[0219] the number of antennas supported by the first terminal;

[0220] The number of MIMO streams supported by the first terminal.

[0221] In some implementations, the first information is carried in a first signaling, and the first signaling includes one or more of the following signalings: SCI, MAC CE.

[0222] In some implementations, the priority corresponding to the MAC CE is determined based on at least one of the following: protocol predefined information, pre-configured information, and network configuration information.

[0223] In some embodiments, the first signaling is carried on a first physical sidelink channel, the first physical sidelink channel includes a PSCCH and / or a PSSCH; and / or the first signaling is transmitted on a first time slot.

[0224] In some implementations, the first physical sidelink channel is further used to carry unicast link related information; and / or, the first time slot also transmits unicast link related information.

[0225] In some implementations, the unicast link related information is DCR information; or, the unicast link related information is DCA information.

[0226] In some implementations, all of the first information is carried on the MAC CE; or, part of the first information is carried on the SCI, and another part of the first information is carried on the MAC CE; or, all of the first information is carried on the SCI.

[0227] In some implementations, the first information is carried in PC5-RRC signaling.

[0228] In some implementations, the physical resources used to transmit the first information are scheduled by the network; or, the physical resources used to transmit the first information are selected by the first terminal.

[0229] In some embodiments, the first signal is a side synchronization signal block S-SSB.

[0230] In some embodiments, the first signal is not used for the synchronization process.

[0231] In some embodiments, the first time unit includes one or more first time domain resources, where the first time domain resources refer to time domain resources used to transmit the first signal.

[0232] In some embodiments, the first time unit is included in a sideline resource pool.

[0233] In some embodiments, the configuration information of the first time unit includes at least one of the following:

[0234] First information, the first information is used to determine the length of the cycle;

[0235] Second information, the second information is used to determine one or more sets of resources within a period;

[0236] The third information is used to determine the resources belonging to the first time unit in at least one set of resources within the period.

[0237] In some embodiments, the third information includes at least one of the following:

[0238] A first parameter, where the first parameter is used to indicate the number of first time domain resources included in each set of resources in at least one set of resources;

[0239] A second parameter, where the second parameter is used to indicate an index of a first first time domain resource included in each set of resources in at least one set of resources;

[0240] A third parameter, which is used to indicate a time interval between two adjacent first time domain resources in each set of resources in at least one set of resources;

[0241] The first time domain resources refer to time domain resources belonging to the first time unit.

[0242] In some embodiments, the configuration information of the first time unit includes at least one of the following:

[0243] First information, the first information is used to determine the length of the cycle;

[0244] The fourth information is used to determine a set of resources within a period, where the resources in the set of resources are resources belonging to the first time unit.

[0245] In some embodiments, the fourth information includes at least one of the following:

[0246] A fourth parameter, which is used to indicate the number of first time domain resources included in a set of resources;

[0247] A fifth parameter, the fifth parameter is used to indicate a time offset of a first first time domain resource in a set of resources relative to a cycle boundary;

[0248] The sixth parameter is used to indicate the time interval between two adjacent first time domain resources in a set of resources.

[0249] In some implementations, the unit of the time offset and / or time interval is a time slot.

[0250] In some embodiments, the configuration information of the first time unit further includes fifth information, and the fifth information is used to determine a period interval between two adjacent periods in which the first time unit exists.

[0251] In some implementations, the configuration information of the first time unit is determined based on at least one of the following: pre-configuration information, network configuration information.

[0252] Those skilled in the art should understand that the relevant description of the terminal type determination device in the embodiment of the present application can be understood with reference to the relevant description of the terminal type determination method in the embodiment of the present application.

[0253] FIG13 is a second schematic diagram of the structure of the apparatus for determining the terminal type provided in an embodiment of the present application, which is applied to a second terminal. As shown in FIG13 , the apparatus includes:

[0254] Receiving unit 1301 is used to receive first information and / or receive a first signal in a first time unit; the first information is used to indicate that the first terminal is a low-capability terminal; the first time unit is used for the low-capability terminal to send a first signal; the second terminal is a terminal in the sideline system.

[0255] In some embodiments, the first information includes at least one of the following:

[0256] First indication information, where the first indication information is used to indicate that the first terminal is a low-capability terminal;

[0257] First terminal capability information, where the first terminal capability information includes one or more capability information of the first terminal.

[0258] In some implementations, the first terminal capability information includes at least one of the following:

[0259] a modulation order supported by the first terminal;

[0260] the highest modulation order supported by the first terminal;

[0261] a bandwidth supported by the first terminal;

[0262] the maximum bandwidth supported by the first terminal;

[0263] the number of antennas supported by the first terminal;

[0264] The number of MIMO streams supported by the first terminal.

[0265] In some implementations, the first information is carried in a first signaling, and the first signaling includes one or more of the following signalings: SCI, MAC CE.

[0266] In some implementations, the priority corresponding to the MAC CE is determined based on at least one of the following: protocol predefined information, pre-configured information, and network configuration information.

[0267] In some embodiments, the first signaling is carried on a first physical sidelink channel, the first physical sidelink channel includes a PSCCH and / or a PSSCH; and / or the first signaling is transmitted on a first time slot.

[0268] In some implementations, the first physical sidelink channel is further used to carry unicast link related information; and / or, the first time slot also transmits unicast link related information.

[0269] In some implementations, the unicast link related information is DCR information; or, the unicast link related information is DCA information.

[0270] In some implementations, all of the first information is carried on the MAC CE; or, part of the first information is carried on the SCI, and another part of the first information is carried on the MAC CE; or, all of the first information is carried on the SCI.

[0271] In some implementations, the first information is carried in PC5-RRC signaling.

[0272] In some embodiments, the first signal is S-SSB.

[0273] In some embodiments, the first signal is not used for the synchronization process.

[0274] In some embodiments, the first time unit includes one or more first time domain resources, and the first time domain resources are used to transmit the first signal.

[0275] In some embodiments, the first time unit is included in a sideline resource pool.

[0276] In some embodiments, the configuration information of the first time unit includes at least one of the following:

[0277] First information, the first information is used to determine the length of the cycle;

[0278] Second information, the second information is used to determine one or more sets of resources within a period;

[0279] The third information is used to determine the resources belonging to the first time unit in at least one set of resources within the period.

[0280] In some embodiments, the third information includes at least one of the following:

[0281] A first parameter, where the first parameter is used to indicate the number of first time domain resources included in each set of resources in at least one set of resources;

[0282] A second parameter, where the second parameter is used to indicate an index of a first first time domain resource included in each set of resources in at least one set of resources;

[0283] A third parameter, which is used to indicate a time interval between two adjacent first time domain resources in each set of resources in at least one set of resources;

[0284] The first time domain resources refer to time domain resources belonging to the first time unit.

[0285] In some embodiments, the configuration information of the first time unit includes at least one of the following:

[0286] First information, the first information is used to determine the length of the cycle;

[0287] The fourth information is used to determine a set of resources within a period, where the resources in the set of resources are resources belonging to the first time unit.

[0288] In some embodiments, the fourth information includes at least one of the following:

[0289] A fourth parameter, which is used to indicate the number of first time domain resources included in a set of resources;

[0290] A fifth parameter, the fifth parameter is used to indicate a time offset of a first first time domain resource in a set of resources relative to a cycle boundary;

[0291] The sixth parameter is used to indicate the time interval between two adjacent first time domain resources in a set of resources.

[0292] In some implementations, the unit of the time offset and / or time interval is a time slot.

[0293] In some embodiments, the configuration information of the first time unit further includes fifth information, and the fifth information is used to determine a period interval between two adjacent periods in which the first time unit exists.

[0294] In some implementations, the configuration information of the first time unit is determined based on at least one of the following: pre-configuration information, network configuration information.

[0295] Those skilled in the art should understand that the relevant description of the terminal type determination device in the embodiment of the present application can be understood with reference to the relevant description of the terminal type determination method in the embodiment of the present application.

[0296] Figure 14 is a schematic structural diagram of a communication device 1400 provided in an embodiment of the present application. The communication device 1400 shown in Figure 14 includes a processor 1410, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0297] Optionally, as shown in FIG14 , the communication device 1400 may further include a memory 1420. The processor 1410 may call and execute a computer program from the memory 1420 to implement the method in the embodiment of the present application.

[0298] The memory 1420 may be a separate device independent of the processor 1410 , or may be integrated into the processor 1410 .

[0299] Optionally, as shown in FIG14 , the communication device 1400 may further include a transceiver 1430 , and the processor 1410 may control the transceiver 1430 to communicate with other devices, specifically, to send information or data to other devices, or to receive information or data sent by other devices.

[0300] The transceiver 1430 may include a transmitter and a receiver. The transceiver 1430 may further include an antenna, and the number of antennas may be one or more.

[0301] The communication device 1400 may specifically be a terminal in an embodiment of the present application, and the communication device 1200 may implement the corresponding processes implemented by the terminal in each method in the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0302] Figure 15 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 1500 shown in Figure 15 includes a processor 1510, which can call and run a computer program from a memory to implement the method according to the embodiment of the present application.

[0303] Optionally, as shown in FIG15 , the chip 1500 may further include a memory 1520. The processor 1510 may call and execute a computer program from the memory 1520 to implement the method in the embodiment of the present application.

[0304] The memory 1520 may be a separate device independent of the processor 1510 , or may be integrated into the processor 1510 .

[0305] Optionally, the chip 1500 may further include an input interface 1530. The processor 1510 may control the input interface 1530 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0306] Optionally, the chip 1500 may further include an output interface 1540. The processor 1510 may control the output interface 1540 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0307] The chip can be applied to the terminal in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the terminal in each method of the embodiment of the present application. For the sake of brevity, it will not be repeated here.

[0308] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0309] It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by hardware integrated logic circuits in the processor or software instructions. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0310] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0311] It should be understood that the above-mentioned memories are exemplary but not restrictive. For example, the memories in the embodiments of the present application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM RAM (DR RAM), etc. In other words, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0312] The present application also provides a computer-readable storage medium for storing a computer program. This computer-readable storage medium can be applied to a terminal in the present application, and the computer program causes a computer to execute the corresponding processes implemented by the terminal in each method of the present application. For the sake of brevity, these are not further described here.

[0313] The present application also provides a computer program product including computer program instructions. This computer program product can be applied to a terminal in the present application, and the computer program instructions cause a computer to execute the corresponding processes implemented by the terminal in each method of the present application. For the sake of brevity, these instructions are not further described here.

[0314] The present application also provides a computer program. This computer program can be applied to the terminal in the present application. When the computer program is executed on a computer, it causes the computer to execute the corresponding process implemented by the terminal in each method of the present application. For the sake of brevity, it is not further described here.

[0315] Those skilled in the art will appreciate that the units and algorithmic steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented using electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0316] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0317] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0318] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0319] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0320] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0321] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A method for determining a terminal type, the method comprising: The first terminal sends first information and / or sends a first signal in a first time unit; The first information is used to indicate that the first terminal is a low-capability terminal; The first time unit is used by a low-capability terminal to send the first signal; the first terminal is a terminal in a sidewalk system.

2. The method according to claim 1, wherein: The first information includes at least one of the following: first indication information, where the first indication information is used to indicate that the first terminal is a low-capability terminal; First terminal capability information, where the first terminal capability information includes one or more capability information of the first terminal.

3. The method according to claim 2, wherein: The first terminal capability information includes at least one of the following: a modulation order supported by the first terminal; A maximum modulation order supported by the first terminal; a bandwidth supported by the first terminal; a maximum bandwidth supported by the first terminal; the number of antennas supported by the first terminal; The number of multiple-input multiple-output (MIMO) streams supported by the first terminal.

4. The method according to any one of claims 1 to 3, wherein: The first information is carried in a first signaling, and the first signaling includes one or more of the following signalings: side control information SCI, and a media access control control element MAC CE.

5. The method according to claim 4, wherein: The priority corresponding to the MAC CE is determined based on at least one of the following: protocol predefined information, preconfiguration information, and network configuration information.

6. The method according to claim 4 or 5, wherein: The first signaling is carried on a first physical sidelink channel, where the first physical sidelink channel includes a physical sidelink control channel PSCCH and / or a physical sidelink shared channel PSSCH; and / or, The first signaling is transmitted in a first time slot.

7. The method according to claim 6, wherein: The first physical side channel is also used to carry unicast link related information; and / or, The first time slot also transmits information related to the unicast link.

8. The method according to claim 7, wherein: The unicast link related information is direct communication request DCR information; or, The unicast link related information is direct communication acceptance DCA information.

9. The method according to any one of claims 4 to 8, wherein: All of the first information is carried in the MAC CE; or, A part of the first information is carried in the SCI, and another part of the first information is carried in the MAC CE; or, All of the first information is carried in SCI.

10. The method according to any one of claims 1 to 3, wherein: The first information is carried in PC5-RRC signaling.

11. The method according to any one of claims 4 to 10, wherein: The physical resources used to transmit the first information are scheduled by the network; or, The physical resources used to transmit the first information are selected by the first terminal.

12. The method according to any one of claims 1 to 11, wherein: The first signal is a side synchronization signal block S-SSB.

13. The method according to claim 12, wherein: The first signal is not used for the synchronization process.

14. The method according to any one of claims 1 to 13, wherein: The first time unit includes one or more first time domain resources, where the first time domain resources refer to time domain resources used to transmit the first signal.

15. The method according to any one of claims 1 to 14, wherein: The first time unit is included in a sideline resource pool.

16. The method according to any one of claims 1 to 15, wherein: The configuration information of the first time unit includes at least one of the following: first information, the first information being used to determine the length of the cycle; second information, the second information being used to determine one or more sets of resources within a period; The third information is used to determine the resources belonging to the first time unit in at least one set of resources within a period.

17. The method according to claim 16, wherein: The third information includes at least one of the following: A first parameter, where the first parameter is used to indicate the number of first time domain resources included in each set of resources in the at least one set of resources; A second parameter, where the second parameter is used to indicate an index of a first first time domain resource included in each set of resources in the at least one set of resources; A third parameter, the third parameter being used to indicate a time interval between two adjacent first time domain resources in each set of resources in the at least one set of resources; The first time domain resources refer to time domain resources belonging to the first time unit.

18. The method according to any one of claims 1 to 15, wherein: The configuration information of the first time unit includes at least one of the following: first information, the first information being used to determine the length of the cycle; Fourth information, the fourth information is used to determine a set of resources within a period, and the resources in the set of resources are resources belonging to the first time unit.

19. The method according to claim 18, wherein: The fourth information includes at least one of the following: a fourth parameter, the fourth parameter being used to indicate the number of first time domain resources included in the set of resources; a fifth parameter, the fifth parameter being used to indicate a time offset of a first first time domain resource in the set of resources relative to the cycle boundary; A sixth parameter, the sixth parameter is used to indicate the time interval between two adjacent first time domain resources in the set of resources.

20. The method according to claim 19, wherein: The unit of the time offset and / or the time interval is a time slot.

21. The method according to any one of claims 16 to 20, wherein: The configuration information of the first time unit also includes fifth information, and the fifth information is used to determine a period interval between two adjacent periods in which the first time unit exists.

22. The method according to any one of claims 16 to 21, wherein: The configuration information of the first time unit is determined based on at least one of the following: pre-configuration information and network configuration information.

23. A method for determining a terminal type, the method comprising: The second terminal receives the first information and / or receives the first signal at the first time unit; The first information is used to indicate that the first terminal is a low-capability terminal; The first time unit is used by a low-capability terminal to send the first signal; the second terminal is a terminal in a sidewalk system.

24. The method according to claim 23, wherein: The first information includes at least one of the following: first indication information, where the first indication information is used to indicate that the first terminal is a low-capability terminal; First terminal capability information, where the first terminal capability information includes one or more capability information of the first terminal.

25. The method according to claim 24, wherein: The first terminal capability information includes at least one of the following: a modulation order supported by the first terminal; A maximum modulation order supported by the first terminal; a bandwidth supported by the first terminal; a maximum bandwidth supported by the first terminal; the number of antennas supported by the first terminal; The number of MIMO streams supported by the first terminal.

26. The method according to any one of claims 23 to 25, wherein: The first information is carried in a first signaling, and the first signaling includes one or more of the following signalings: SCI, MAC CE.

27. The method according to claim 26, wherein: The priority corresponding to the MAC CE is determined based on at least one of the following: protocol predefined information, preconfiguration information, and network configuration information.

28. The method according to claim 26 or 27, wherein: The first signaling is carried on a first physical side channel, and the first physical side channel includes a PSCCH and / or a PSSCH; and / or, The first signaling is transmitted in a first time slot.

29. The method according to claim 28, wherein: The first physical side channel is also used to carry unicast link related information; and / or, The first time slot also transmits information related to the unicast link.

30. The method of claim 29, wherein: The unicast link related information is DCR information; or, The unicast link related information is DCA information.

31. The method according to any one of claims 26 to 30, wherein: All of the first information is carried in the MAC CE; or, A part of the first information is carried in the SCI, and another part of the first information is carried in the MAC CE; or, All of the first information is carried in SCI.

32. The method according to any one of claims 23 to 25, wherein: The first information is carried in PC5-RRC signaling.

33. The method according to any one of claims 23 to 32, wherein: The first signal is S-SSB.

34. The method of claim 33, wherein: The first signal is not used for the synchronization process.

35. The method according to any one of claims 23 to 34, wherein: The first time unit includes one or more first time domain resources, and the first time domain resources are used to transmit the first signal.

36. The method according to any one of claims 23 to 35, wherein: The first time unit is included in a sideline resource pool.

37. The method according to any one of claims 23 to 36, wherein: The configuration information of the first time unit includes at least one of the following: first information, the first information being used to determine the length of the cycle; second information, the second information being used to determine one or more sets of resources within a period; The third information is used to determine the resources belonging to the first time unit in at least one set of resources within a period.

38. The method of claim 37, wherein: The third information includes at least one of the following: A first parameter, where the first parameter is used to indicate the number of first time domain resources included in each set of resources in the at least one set of resources; A second parameter, where the second parameter is used to indicate an index of a first first time domain resource included in each set of resources in the at least one set of resources; A third parameter, the third parameter being used to indicate a time interval between two adjacent first time domain resources in each set of resources in the at least one set of resources; The first time domain resources refer to time domain resources belonging to the first time unit.

39. The method according to any one of claims 23 to 36, wherein: The configuration information of the first time unit includes at least one of the following: first information, the first information being used to determine the length of the cycle; Fourth information, the fourth information is used to determine a set of resources within a period, and the resources in the set of resources are resources belonging to the first time unit.

40. The method of claim 39, wherein: The fourth information includes at least one of the following: a fourth parameter, the fourth parameter being used to indicate the number of first time domain resources included in the set of resources; a fifth parameter, the fifth parameter being used to indicate a time offset of a first first time domain resource in the set of resources relative to the cycle boundary; A sixth parameter, the sixth parameter is used to indicate the time interval between two adjacent first time domain resources in the set of resources.

41. The method of claim 40, wherein: The unit of the time offset and / or the time interval is a time slot.

42. The method according to any one of claims 37 to 41, wherein: The configuration information of the first time unit also includes fifth information, and the fifth information is used to determine a period interval between two adjacent periods in which the first time unit exists.

43. A method according to any one of claims 37 to 42, wherein: The configuration information of the first time unit is determined based on at least one of the following: pre-configuration information and network configuration information.

44. A device for determining a terminal type, applied to a first terminal, the device comprising: A sending unit, configured to send first information and / or send a first signal at a first time unit; The first information is used to indicate that the first terminal is a low-capability terminal; the first time unit is used by the low-capability terminal to send the first signal; and the first terminal is a terminal in a sidewalk system.

45. A device for determining a terminal type, applied to a second terminal, the device comprising: A receiving unit, configured to receive first information and / or a first signal at a first time unit; The first information is used to indicate that the first terminal is a low-capability terminal; the first time unit is used by the low-capability terminal to send the first signal; and the second terminal is a terminal in a sidewalk system.

46. ​​A terminal comprising: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method as claimed in any one of claims 1 to 22, or the method as claimed in any one of claims 23 to 43.

47. A chip, comprising: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes a method as claimed in any one of claims 1 to 22, or a method as claimed in any one of claims 23 to 43.

48. A computer-readable storage medium for storing a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 1 to 22, or the method according to any one of claims 23 to 43.

49. A computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method of any one of claims 1 to 22, or any one of claims 23 to 43.

50. A computer program, the computer program causing a computer to execute the method of any one of claims 1 to 22, or any one of claims 23 to 43.

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