Information transmission method and device

Abstract

This application discloses an information transmission method and apparatus for transmitting SL-DRX configurations between a TxUE and a RxUE via broadcast or multicast communication. This method not only aligns the SL-DRX configurations between the TxUE and the RxUE, significantly improving data transmission reliability and the system's packet reception rate, but also minimizes the latency of transmitting the SL-DRX configurations. The method includes: determining discontinuous reception (SL-DRX) configuration information for a direct link that needs to be transmitted between a transmitting terminal and a receiving terminal; and transmitting the SL-DRX configuration information via broadcast or multicast.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an information transmission method and device. Background Art

[0002] In a vehicle-to-everything (V2X) direct link communication system, when both the Transmit User Equipment (TxUE) and the Receive User Equipment (RxUE) are configured with sidelink discontinuous reception (SL-DRX), the RxUE cannot receive data sent by the TxUE due to misalignment of the SL-DRX configurations of the TxUE and the RxUE. When the SL-DRX configurations of the TxUE and the RxUE are misaligned, the resources selected by the TxUE are turned off during the RxUE's SL-DRX off period, preventing the RxUE from receiving data. This reduces data transmission reliability and the system's packet reception rate (PRR). Summary of the Invention

[0003] An embodiment of the present application provides an information transmission method and device for transmitting SL-DRX configuration between TxUE and RxUE through broadcast or multicast communication. This not only achieves SL-DRX configuration alignment between TxUE and RxUE, greatly improving the reliability of data transmission and the packet reception rate of the system, but also has a very small delay in transmitting SL-DRX configuration.

[0004] On the sending terminal side, an information transmission method provided by an embodiment of the present application includes:

[0005] Determine discontinuous reception (SL-DRX) configuration information of a direct link that currently needs to be transmitted between a transmitting terminal and a receiving terminal;

[0006] The SL-DRX configuration information is sent by broadcast or multicast.

[0007] This method determines the discontinuous reception SL-DRX configuration information of the direct link that currently needs to be transmitted between the transmitting terminal and the receiving terminal; the SL-DRX configuration information is sent by broadcast or multicast, thereby realizing the transmission of the SL-DRX configuration between the TxUE and the RxUE by broadcast or multicast communication. Not only can the SL-DRX configuration alignment between the TxUE and the RxUE be achieved, greatly improving the reliability of data transmission and the packet reception rate of the system, but also the delay in transmitting the SL-DRX configuration is very small.

[0008] Optionally, the method further includes:

[0009] receiving indication information sent by the network side, where the indication information is used to instruct to transmit direct link discontinuous reception (SL-DRX) configuration information between the transmitting terminal and the receiving terminal in a broadcast or multicast manner;

[0010] According to the indication information, it is determined whether to use a broadcast or multicast manner to send the SL-DRX configuration information.

[0011] Optionally, when the SL-DRX configuration information is sent by broadcasting, the SL-DRX configuration information of the sending terminal is carried in a broadcast message in a physical direct link broadcast channel PSBCH of the sending terminal.

[0012] Optionally, when the SL-DRX configuration information is sent in a multicast manner, the SL-DRX configuration information of the sending terminal is carried in the direct link control information SCI.

[0013] Optionally, when the SL-DRX configuration information is sent by broadcasting, the SL-DRX configuration information of the sending terminal is carried in the coordination information in the physical direct link broadcast channel PSBCH of the sending terminal.

[0014] Optionally, when the SL-DRX configuration information is sent via multicast, the SL-DRX configuration information of the sending terminal is carried in the coordination information in the direct link control information SCI or the media access control unit MAC-CE.

[0015] Optionally, the coordination information further includes: indication information of the type of information carried in the coordination information, used to indicate whether the coordination information carries SL-DRX configuration information or preferred resource information or not-preferred resource information.

[0016] Optionally, the method further includes:

[0017] Receive and store the SL-DRX configuration pre-configured for the terminal by the network side.

[0018] Optionally, the SL-DRX configuration is 2 pre-set by the network side. n One of the SL-DRX configurations;

[0019] The SL-DRX configuration information sent by broadcast or multicast is n-bit bitmap information, which is used to indicate the 2 n One of the SL-DRX configurations.

[0020] On the receiving terminal side, an information transmission method provided by an embodiment of the present application includes:

[0021] Receiving, by broadcast or multicast, the through-link discontinuous reception SL-DRX configuration information transmitted by the transmitting terminal;

[0022] According to the SL-DRX configuration information, the SL-DRX configuration adopted by the receiving terminal is determined, so that the SL-DRX configuration adopted by the receiving terminal is consistent with the SL-DRX configuration adopted by the transmitting terminal.

[0023] The method further includes:

[0024] Indication information sent by the network side is received, where the indication information is used to indicate that direct link discontinuous reception (SL-DRX) configuration information is transmitted between the transmitting terminal and the receiving terminal in a broadcast or multicast manner.

[0025] On the sending terminal side, an information transmission device provided in an embodiment of the present application includes:

[0026] a memory for storing program instructions;

[0027] The processor is configured to call the program instructions stored in the memory and execute according to the obtained program:

[0028] Determine discontinuous reception (SL-DRX) configuration information of a direct link that currently needs to be transmitted between a transmitting terminal and a receiving terminal;

[0029] The SL-DRX configuration information is sent by broadcast or multicast.

[0030] Optionally, the processor is further configured to call program instructions stored in the memory and execute according to the obtained program:

[0031] receiving indication information sent by the network side, where the indication information is used to instruct to transmit direct link discontinuous reception (SL-DRX) configuration information between the transmitting terminal and the receiving terminal in a broadcast or multicast manner;

[0032] According to the indication information, it is determined whether to use a broadcast or multicast manner to send the SL-DRX configuration information.

[0033] Optionally, when the SL-DRX configuration information is sent by broadcasting, the SL-DRX configuration information of the sending terminal is carried in a broadcast message in a physical direct link broadcast channel PSBCH of the sending terminal.

[0034] Optionally, when the SL-DRX configuration information is sent in a multicast manner, the SL-DRX configuration information of the sending terminal is carried in the direct link control information SCI.

[0035] Optionally, when the SL-DRX configuration information is sent by broadcasting, the SL-DRX configuration information of the sending terminal is carried in the coordination information in the physical direct link broadcast channel PSBCH of the sending terminal.

[0036] Optionally, when the SL-DRX configuration information is sent via multicast, the SL-DRX configuration information of the sending terminal is carried in the coordination information in the direct link control information SCI or the media access control unit MAC-CE.

[0037] Optionally, the coordination information further includes: indication information of the type of information carried in the coordination information, used to indicate whether the coordination information carries SL-DRX configuration information or preferred resource information or not-preferred resource information.

[0038] Optionally, the processor is further configured to call program instructions stored in the memory and execute according to the obtained program:

[0039] Receive and store the SL-DRX configuration pre-configured for the terminal by the network side.

[0040] Optionally, the SL-DRX configuration is 2 pre-set by the network side. n One of the SL-DRX configurations;

[0041] The SL-DRX configuration information sent by broadcast or multicast is n-bit bitmap information, which is used to indicate the 2 n One of the SL-DRX configurations.

[0042] On the receiving terminal side, an information transmission device provided by an embodiment of the present application includes:

[0043] a memory for storing program instructions;

[0044] The processor is configured to call the program instructions stored in the memory and execute according to the obtained program:

[0045] Receiving, by broadcast or multicast, the through-link discontinuous reception SL-DRX configuration information transmitted by the transmitting terminal;

[0046] According to the SL-DRX configuration information, the SL-DRX configuration adopted by the receiving terminal is determined, so that the SL-DRX configuration adopted by the receiving terminal is consistent with the SL-DRX configuration adopted by the transmitting terminal.

[0047] Optionally, the processor is further configured to call program instructions stored in the memory, and execute the method according to any one of claims 1 to 9 according to the obtained program.

[0048] On the sending terminal side, another information transmission device provided in an embodiment of the present application includes:

[0049] a determining unit, configured to determine direct link discontinuous reception (SL-DRX) configuration information currently required to be transmitted between a transmitting terminal and a receiving terminal;

[0050] The transceiver unit is configured to send the SL-DRX configuration information by broadcasting or multicasting.

[0051] On the receiving terminal side, another information transmission device provided by an embodiment of the present application includes:

[0052] The transceiver unit is configured to receive, by broadcast or multicast, the direct link discontinuous reception (SL-DRX) configuration information transmitted by the sending terminal;

[0053] A determining unit is used to determine the SL-DRX configuration adopted by the receiving terminal according to the SL-DRX configuration information, so that the SL-DRX configuration adopted by the receiving terminal is consistent with the SL-DRX configuration adopted by the transmitting terminal.

[0054] Another embodiment of the present application provides a computing device, which includes a memory and a processor, wherein the memory is used to store program instructions, and the processor is used to call the program instructions stored in the memory and execute any of the above methods according to the obtained program.

[0055] Another embodiment of the present application provides a computer storage medium, wherein the computer storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable the computer to execute any of the above methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0057] Figure 1A schematic diagram of a flow chart of an information transmission method on the sending terminal side provided in an embodiment of the present application;

[0058] Figure 2 A flowchart of an information transmission method on a receiving terminal side provided in an embodiment of the present application;

[0059] Figure 3 A schematic diagram of the structure of an information transmission device on the terminal side provided in an embodiment of the present application;

[0060] Figure 4 A schematic diagram of the structure of an information transmission device on the sending terminal side provided in an embodiment of the present application;

[0061] Figure 5 A schematic structural diagram of an information transmission device on the receiving terminal side provided in an embodiment of the present application. DETAILED DESCRIPTION

[0062] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only 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.

[0063] An embodiment of the present application provides an information transmission method and device for transmitting SL-DRX configuration between TxUE and RxUE through broadcast or multicast communication. This not only achieves SL-DRX configuration alignment between TxUE and RxUE, greatly improving the reliability of data transmission and the packet reception rate of the system, but also has a very small delay in transmitting SL-DRX configuration.

[0064] Among them, the method and the device are based on the same application concept. Since the principles of solving problems by the method and the device are similar, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0065] The technical solutions provided in the embodiments of the present application can be applicable to a variety of systems, especially 5G systems. For example, applicable systems may be global system of mobile communication (GSM) systems, code division multiple access (CDMA) systems, wideband code division multiple access (WCDMA) general packet radio service (GPRS) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, universal mobile telecommunication systems (UMTS), worldwide interoperability for microwave access (WiMAX) systems, 5G systems, and 5G NR systems. These various systems include terminal devices and network devices.

[0066] The terminal device involved in the embodiments of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connection function, or other processing device connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called user equipment (UE). The wireless terminal device can communicate with one or more core networks via the RAN. The wireless terminal device can be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device. For example, it can be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and / or data with the wireless access network. For example, personal communication service (PCS) phones, cordless phones, session initiated protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, or a user device, but is not limited in the embodiments of the present application.

[0067] The network device involved in the embodiments of the present application may be a base station, which may include multiple cells. Depending on the specific application scenario, the base station may also be called an access point, or may refer to a device in an access network that communicates with a wireless terminal device through one or more sectors on an air interface, or other names. The network device may be used to convert received air frames into and from Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present application can be a network device (base transceiver station, BTS) in the global system for mobile communications (GSM) or code division multiple access (CDMA), or a network device (NodeB) in wide-band code division multiple access (WCDMA), or an evolved network device (evolutionary node B, eNB or e-NodeB) in the long term evolution (LTE) system, a 5G base station in the 5G network architecture (next generation system), or a home evolved node B (HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., but is not limited in the embodiments of the present application.

[0068] The following describes in detail the various embodiments of the present application in conjunction with the accompanying drawings. It should be noted that the order in which the embodiments of the present application are presented only represents the order of the embodiments, and does not represent the advantages or disadvantages of the technical solutions provided by the embodiments.

[0069] An embodiment of the present application proposes an alignment scheme for SL-DRX configuration. By using broadcast or multicast communication methods, the TxUE directly notifies the RxUE of its SL-DRX related configuration through the physical layer channel, or the TxUE indirectly notifies the RxUE of its SL-DRX related configuration through coordination information, thereby aligning the SL-DRX configurations of the TxUE and the RxUE.

[0070] Specifically, for example, the head node (the first sending terminal) notifies its SL-DRX configuration through broadcast or multicast, which can enable the terminals within a certain range or group to quickly align with the SL-DRX configuration of the head node. The use of physical layer channels or coordinated information to transmit the SL-DRX configuration can further reduce the latency. Among them, the use of coordinated information to transmit the SL-DRX configuration can save physical layer resource consumption.

[0071] The coordination information is a resource set determined by a terminal (such as UE-A). In the Mode 2 system, UE-A sends the resource set it determines to another terminal (such as UE-B), and UE-B uses the resource set sent by UE-A for resource selection and data transmission.

[0072] Regarding UE coordination in NR-V2X direct link Mode 2 resource allocation:

[0073] Solution 1: UE-A (RxUE or other UE capable of sending coordination information) can determine a set of preferred and / or non-preferred resources for SL data transmission for UE-B. The specific settings in Solution 1, such as the conditions for sending Solution 1 coordination information and how to select preferred and / or non-preferred resources, require further study.

[0074] Solution 2: UE-A (RxUE or other UE capable of sending coordination information) sends an expected / potential resource collision and / or detected resource collision indication to UE-B based on the resource indication in the sidelink control information (SCI) of UE-B.

[0075] After UE-B receives the UE coordination information, it needs to consider one of the following options (one or more of the following options may be selected / combined) to process the coordination information and allocate resources:

[0076] Option 1:

[0077] Option 1-1: The resources used by UE-B for its transmission resource (re)selection are based on UE-B’s sensing results (if available) and the received coordination information;

[0078] Option 1-2: The resources used by UE-B for its transmission resource (re)selection are based solely on the received coordination information;

[0079] Option 1-3: Reselect UE-B's resources based on the received coordination information;

[0080] Option 1-4: UE-B's transmission resource (re)selection is based on the received coordination information.

[0081] Option 2:

[0082] Option 2-1: UE-B determines the resources to be reselected based on the received coordination information;

[0083] Option 2-2: UE-B may determine whether retransmission is required based on the received coordination information.

[0084] Regarding the discontinuous reception (DRX) described in the embodiments of the present application:

[0085] In a system, UEs only need to receive data part of the time; they are not required to receive at all times. Constant data reception by UEs results in significant power consumption. DRX enables discontinuous UE monitoring, thereby saving energy. During a DRX cycle, UEs monitor and receive data during DRX-on periods and stop monitoring during DRX-off periods, thus saving power. For DRX-configured transmit and receive (TX) UEs, their DRX configurations must be consistent; that is, the DRX-on period of the TX UE and the DRX-on period of the RX UE must be aligned.

[0086] The SL-DRX configuration sent from the RxUE to the TxUE can be considered as signaling 1, and the SL-DRX configuration sent from the TxUE to the RxUE can be considered as signaling 2. Signaling 1 is carried by the PC5 radio resource control (RRC), and signaling 2 is carried by the RRC reconfiguration sidelink signaling. The PC5 refers to the PC5 interface, which is the interface for communication between UEs.

[0087] However, in the NR V2X Mode 2 system, if RRC-PC5 signaling is used, the bidirectional SL-DRX configuration is transmitted in unicast mode. In high-speed driving scenarios, such as communication between vehicles on a highway, the transmission of SL-DRX configuration using RRC PC5 signaling has a delay of hundreds of milliseconds, while transmission through the physical layer channel only takes a few milliseconds or more than ten milliseconds. In addition, in broadcast and multicast scenarios, when SL-DRX configuration is transmitted through RRC PC5 signaling, the TxUE needs to send the configuration parameters to each RxUE, which will generate more transmission delays and affect the QoS performance of the transmission. The physical layer signaling can transmit SL-DRX configuration to multiple terminals at the same time through broadcast or multicast, which can significantly reduce the transmission delay compared to RRC PC5 signaling.

[0088] Therefore, the direct link discontinuous reception (SL-DRX) configuration alignment method proposed in the embodiment of the present application can consider aligning the SL-DRX configurations of TxUE and RxUE through broadcast or multicast communication, that is, the SL-DRX on-listening time (on-duration) of TxUE is the same as the starting moment and duration of the SL-DRX on-duration of RxUE, and the SL-DRX off-listening time (off-duration) of TxUE is the same as the starting moment and duration of the SL-DRX off-duration of RxUE. Specifically, TxUE sends its SL-DRX related configuration to RxUE through physical layer channels or coordination information to align the SL-DRX configurations of TxUE and RxUE. The head node (any terminal) notifies the SL-DRX configuration through broadcast or multicast, which can enable the terminals within a certain range or group to quickly align with the SL-DRX configuration of the head node. The use of physical layer channels or coordination information to transmit the SL-DRX configuration can further reduce the latency, and the use of coordination information to transmit the SL-DRX configuration can save physical layer resources.

[0089] The coordination information may be transmitted via a physical layer channel or may not be transmitted via a physical layer channel. The physical layer channel or coordination information transmission SL-DRX configuration described in the embodiments of the present application may be implemented in a broadcast or multicast manner.

[0090] SL-DRX configuration via physical layer channel alignment:

[0091] Through the SL-DRX configuration information sent by the TxUE, the RxUE aligns the SL-DRX configuration with the configuration of the TxUE;

[0092] Broadcast mode: The TxUE carries its SL-DRX configuration information in a broadcast message on its Physical Sidelink Broadcast Channel (PSBCH) and broadcasts it to the RxUE, so that the SL-DRX configuration of terminals within a certain range is aligned with the TxUE's configuration;

[0093] Multicast mode: The TxUE carries its SL-DRX configuration information in the SCI and multicasts it to the RxUEs in the group, so that the SL-DRX configurations of all terminals in the group are aligned with the TxUE configuration.

[0094] Physical layer channel SL-DRX configuration indication method:

[0095] In PSBCH (broadcast communication) or SCI (multicast communication), n bits are used to indicate the 2 bits of SL-DRX configuration.n One SL-DRX configuration among configurations;

[0096] Through the n-bit bitmap, each bitmap format corresponds to an SL-DRX configuration.

[0097] In the embodiment of the present application, there are 2 n For each SL-DRX configuration, an n-bit bitmap is sent to indicate the terminal's SL-DRX configuration type. The n-bit bitmap sent to different terminals can be different, that is, different terminals can correspond to different SL-DRX configurations. Subsequently, the terminal sends the n-bit bitmap to other terminals, using the same n-bit bitmap to indicate its own SL-DRX configuration type.

[0098] Aligning SL-DRX configurations through coordination information:

[0099] The SL-DRX configuration of the RxUE is adjusted through the coordination information sent by the TxUE so that the SL-DRX configurations of the two are aligned.

[0100] Broadcast mode: The TxUE carries the SL-DRX configuration information in the coordination information on its PSBCH channel and broadcasts it to the RxUE, so that the SL-DRX configuration of terminals within a certain range is aligned with the configuration of the TxUE;

[0101] Multicast mode: The TxUE carries the SL-DRX configuration information in the coordination information in its SCI or Media Access Control Element (MAC-CE), and multicasts it to the RxUEs in the group, so that the SL-DRX configurations of all terminals in the group are aligned with the TxUE configuration.

[0102] Notification and coordination information method:

[0103] The RxUE adds 2 bits to the coordination information to indicate the bearer information type in the coordination information;

[0104] Indicates that the bearer information type is SL-DRX configuration information, preferred resource information, or non-preferred resource information.

[0105] That is to say, the coordination information described in the embodiment of the present application also includes: indication information of the type of information carried in the coordination information, which is used to indicate that the coordination information carries SL-DRX configuration information or preferred resource information or not-preferred resource information.

[0106] Optionally, in the coordination information, a bitmap of n1 bits is used to indicate that the SL-DRX configuration is 2 configured on the network side. n That is, the terminal receives and stores the SL-DRX configuration (2 n One of the configurations), and in the coordination information, the network side indicates the SL-DRX configuration configured for the terminal through an n1-bit bitmap; wherein, the values ​​of n1 and n are the same.

[0107] Alternatively, n2 bits are used in the coordination information to indicate preferred or not-preferred resources, wherein n2 has no relationship with the values ​​of n1 and n. The specific values ​​of each parameter can be determined according to actual needs and are not limited in the present embodiment.

[0108] Implementation example:

[0109] Embodiment 1: SL-DRX configuration is performed by aligning the physical layer channels in a broadcast mode.

[0110] When the SL-DRX configuration information is sent by broadcast, the TxUE carries its SL-DRX configuration information through a broadcast message in the PSBCH channel.

[0111] Step 1: The network side semi-statically configures or statically configures the SL-DRX cycle type that can be configured in the resource pool, that is, the SL-DRX configuration type, for example 2 n SL-DRX configurations;

[0112] The network side indicates that the resources in the resource pool can communicate via broadcast;

[0113] SL-DRX is enabled in the RRC signaling, that is, the UE can receive information in DRX mode, and 2 is configured in the resource pool. n SL-DRX configurations;

[0114] Step 2: The network side configures 2 for TxUE through RRC PC5 signaling n One or more SL-DRX configurations of a SL-DRX configuration type;

[0115] That is to say, in the embodiment of the present application, the network side pre-configures 2 for the terminal. n SL-DRX configurations and sends one or more SL-DRX configuration information to the terminal. Different SL-DRX configuration information can be sent to different terminals. For any terminal, the SL-DRX configuration information sent to the terminal is a bitmap information of n bits, which is used to indicate the SL-DRX configuration that the terminal needs to adopt.

[0116] Step 3: The TxUE carries its SL-DRX configuration information in the broadcast message on its PSBCH channel and broadcasts it to the RxUE;

[0117] Specifically, n bits in the PSBCH channel can be used to indicate its SL-DRX configuration in the form of a bitmap;

[0118] Step 4: The RxUE receives the broadcast information from the TxUE and configures its own SL-DRX according to the SL-DRX configuration information in the broadcast information to align it with the SL-DRX configuration of the TxUE.

[0119] Embodiment 2: SL-DRX configuration is performed by aligning the physical layer channels in a multicast manner.

[0120] When the SL-DRX configuration information is sent via multicast, the TxUE carries its SL-DRX configuration information via the multicast message in the SCI.

[0121] Step 1: The network side semi-statically configures or statically configures the SL-DRX cycle type that can be configured in the resource pool, that is, the SL-DRX configuration type, for example 2 n SL-DRX configurations;

[0122] The network side indicates that the resources in the resource pool can communicate via broadcast;

[0123] SL-DRX is enabled in the RRC signaling, that is, the UE can receive information in DRX mode, and 2 is configured in the resource pool. n SL-DRX configurations;

[0124] Step 2: The network side configures TxUE 2 through RRC-PC5 signaling n One or more SL-DRX configurations in a SL-DRX cycle configuration type;

[0125] That is to say, in the embodiment of the present application, the network side pre-configures 2 for the terminal. n SL-DRX configurations and sends one or more SL-DRX configuration information to the terminal. Different SL-DRX configuration information can be sent to different terminals. For any terminal, the SL-DRX configuration information sent to the terminal is a bitmap information of n bits, which is used to indicate the SL-DRX configuration that the terminal needs to adopt.

[0126] Step 3: The TxUE carries its SL-DRX configuration information in the SCI and multicasts it to the RxUE.

[0127] For example, the TxUE carries its SL-DRX configuration information in its PSCCH (1st stage SCI) or Physical Sidelink Share Channel (PSSCH) (2nd stage SCI). The SL-DRX configuration is indicated in a bitmap format using n bits in the PSCCH (1st stage SCI) or PSSCH (2nd stage SCI).

[0128] Step 4: The RxUE receives the multicast information from the TxUE and configures its own SL-DRX according to the SL-DRX configuration information in the multicast information to align it with the SL-DRX configuration of the TxUE.

[0129] Embodiment 3: aligning SL-DRX configurations through coordination information in a broadcast manner.

[0130] When the SL-DRX configuration information is sent in a broadcast manner, the SL-DRX configuration information of the sending terminal is carried in the coordination information in the PSBCH of the sending terminal.

[0131] Step 1: The network side semi-statically configures or statically configures the SL-DRX cycle type that can be configured in the resource pool, that is, the SL-DRX configuration type, for example 2 n SL-DRX configurations;

[0132] The network side may indicate that the resources in the resource pool may be communicated via broadcast or via coordination information transmission;

[0133] SL-DRX is enabled in the RRC signaling, that is, the UE can receive information in DRX mode, and 2 is configured in the resource pool. n SL-DRX configurations;

[0134] Step 2: The network side configures TxUE 2 through RRC-PC5 signaling n One or more SL-DRX configurations in a SL-DRX cycle configuration type;

[0135] That is to say, in the embodiment of the present application, the network side pre-configures 2 for the terminal. n SL-DRX configurations and sends one or more SL-DRX configuration information to the terminal. Different SL-DRX configuration information can be sent to different terminals. For any terminal, the SL-DRX configuration information sent to the terminal is a bitmap information of n bits, which is used to indicate the SL-DRX configuration that the terminal needs to adopt.

[0136] Step 3: The TxUE carries its SL-DRX configuration information in the coordination information in its PSBCH and sends it to the RxUE via broadcast;

[0137] Furthermore, indicating in the coordination information that the information carried by the coordination information is SL-DRX configuration information;

[0138] Use n bits in the coordination information to indicate its SL-DRX configuration in the form of a bitmap;

[0139] Step 4: The RxUE receives the broadcast information from the TxUE and configures its own SL-DRX according to the SL-DRX configuration information in the broadcast information to align it with the SL-DRX configuration of the TxUE.

[0140] Embodiment 4: aligning SL-DRX configurations through coordination information in a multicast manner.

[0141] When the SL-DRX configuration information is sent in a multicast manner, the SL-DRX configuration information of the sending terminal is carried in the coordination information in the direct link control information SCI or the media access control element MAC-CE.

[0142] Step 1: The network side semi-statically configures or statically configures the SL-DRX cycle type that can be configured in the resource pool, that is, the SL-DRX configuration type, for example 2 n SL-DRX configurations;

[0143] The network side may indicate that the resources in the resource pool may be communicated via broadcast or via coordination information transmission;

[0144] SL-DRX is enabled in the RRC signaling, that is, the UE can receive information in DRX mode, and 2 is configured in the resource pool. n SL-DRX configurations;

[0145] Step 2: The network side configures 2 for TxUE through RRC-PC5 signaling n One or more SL-DRX configurations of a SL-DRX configuration type;

[0146] That is to say, in the embodiment of the present application, the network side pre-configures 2 for the terminal. n SL-DRX configurations and sends one or more SL-DRX configuration information to the terminal. Different SL-DRX configuration information can be sent to different terminals. For any terminal, the SL-DRX configuration information sent to the terminal is a bitmap information of n bits, which is used to indicate the SL-DRX configuration that the terminal needs to adopt.

[0147] Step 3: The TxUE carries its SL-DRX configuration information in the coordination information on its PSCCH or PSSCH channel and sends it to the RxUE via multicast;

[0148] Furthermore, indicating in the coordination information that the information carried by the coordination information is SL-DRX configuration information;

[0149] Use n bits in the coordination information to indicate its SL-DRX configuration in the form of a bitmap;

[0150] Step 4: The RxUE receives the multicast information from the TxUE and configures its own SL-DRX according to the SL-DRX configuration information in the multicast information to align it with the SL-DRX configuration of the TxUE.

[0151] In summary, see Figure 1 On the sending terminal side, an information transmission method provided by an embodiment of the present application includes:

[0152] S101, determining direct link discontinuous reception (SL-DRX) configuration information currently required to be transmitted between a transmitting terminal and a receiving terminal;

[0153] S102: Send the SL-DRX configuration information by broadcasting or multicasting.

[0154] This method determines the discontinuous reception SL-DRX configuration information of the direct link that currently needs to be transmitted between the transmitting terminal and the receiving terminal; the SL-DRX configuration information is sent by broadcast or multicast, thereby realizing the transmission of the SL-DRX configuration between the TxUE and the RxUE by broadcast or multicast communication. Not only can the SL-DRX configuration alignment between the TxUE and the RxUE be achieved, greatly improving the reliability of data transmission and the packet reception rate of the system, but also the delay in transmitting the SL-DRX configuration is very small.

[0155] Optionally, the method further includes:

[0156] receiving indication information sent by the network side, where the indication information is used to instruct to transmit direct link discontinuous reception (SL-DRX) configuration information between the transmitting terminal and the receiving terminal in a broadcast or multicast manner;

[0157] According to the indication information, it is determined whether to use a broadcast or multicast manner to send the SL-DRX configuration information.

[0158] Optionally, when the SL-DRX configuration information is sent by broadcasting, the SL-DRX configuration information of the sending terminal is carried in a broadcast message in a physical direct link broadcast channel PSBCH of the sending terminal.

[0159] Optionally, when the SL-DRX configuration information is sent in a multicast manner, the SL-DRX configuration information of the sending terminal is carried in the direct link control information SCI.

[0160] Optionally, when the SL-DRX configuration information is sent by broadcasting, the SL-DRX configuration information of the sending terminal is carried in the coordination information in the physical direct link broadcast channel PSBCH of the sending terminal.

[0161] Optionally, when the SL-DRX configuration information is sent via multicast, the SL-DRX configuration information of the sending terminal is carried in the coordination information in the direct link control information SCI or the media access control unit MAC-CE.

[0162] Optionally, the coordination information further includes: indication information of the type of information carried in the coordination information, used to indicate whether the coordination information carries SL-DRX configuration information or preferred resource information or not-preferred resource information.

[0163] Optionally, the method further includes:

[0164] Receive and store the SL-DRX configuration pre-configured for the terminal by the network side.

[0165] Optionally, the SL-DRX configuration is 2 pre-set by the network side. n One of the SL-DRX configurations;

[0166] The SL-DRX configuration information sent by broadcast or multicast is n-bit bitmap information, which is used to indicate the 2 n One of the SL-DRX configurations.

[0167] See also Figure 2 On the receiving terminal side, an information transmission method provided by an embodiment of the present application includes:

[0168] S201. Receive, by broadcast or multicast, direct link discontinuous reception (SL-DRX) configuration information transmitted by a transmitting terminal;

[0169] S202. Determine the SL-DRX configuration adopted by the receiving terminal according to the SL-DRX configuration information, so that the SL-DRX configuration adopted by the receiving terminal is consistent with the SL-DRX configuration adopted by the transmitting terminal.

[0170] Optionally, the method further includes:

[0171] Indication information sent by the network side is received, where the indication information is used to indicate that direct link discontinuous reception (SL-DRX) configuration information is transmitted between the transmitting terminal and the receiving terminal in a broadcast or multicast manner.

[0172] See also Figure 3 On the terminal side, an information transmission device provided by an embodiment of the present application includes:

[0173] Memory 620, for storing program instructions;

[0174] The processor 600 is configured to call the program instructions stored in the memory 620 and execute according to the obtained program:

[0175] Determine discontinuous reception (SL-DRX) configuration information of a direct link that currently needs to be transmitted between a transmitting terminal and a receiving terminal;

[0176] The SL-DRX configuration information is sent by broadcast or multicast.

[0177] Optionally, the processor 600 is further configured to call program instructions stored in the memory 620 and execute according to the obtained program:

[0178] receiving indication information sent by the network side, where the indication information is used to instruct to transmit direct link discontinuous reception (SL-DRX) configuration information between the transmitting terminal and the receiving terminal in a broadcast or multicast manner;

[0179] According to the indication information, it is determined whether to use a broadcast or multicast manner to send the SL-DRX configuration information.

[0180] Optionally, when the SL-DRX configuration information is sent by broadcasting, the SL-DRX configuration information of the sending terminal is carried in a broadcast message in a physical direct link broadcast channel PSBCH of the sending terminal.

[0181] Optionally, when the SL-DRX configuration information is sent in a multicast manner, the SL-DRX configuration information of the sending terminal is carried in the direct link control information SCI.

[0182] Optionally, when the SL-DRX configuration information is sent by broadcasting, the SL-DRX configuration information of the sending terminal is carried in the coordination information in the physical direct link broadcast channel PSBCH of the sending terminal.

[0183] Optionally, when the SL-DRX configuration information is sent via multicast, the SL-DRX configuration information of the sending terminal is carried in the coordination information in the direct link control information SCI or the media access control unit MAC-CE.

[0184] Optionally, the coordination information further includes: indication information of the type of information carried in the coordination information, used to indicate whether the coordination information carries SL-DRX configuration information or preferred resource information or not-preferred resource information.

[0185] Optionally, the processor 600 is further configured to call program instructions stored in the memory 620 and execute according to the obtained program:

[0186] Receive and store the SL-DRX configuration pre-configured for the terminal by the network side.

[0187] Optionally, the SL-DRX configuration is 2 pre-set by the network side. n One of the SL-DRX configurations;

[0188] The SL-DRX configuration information sent by broadcast or multicast is n-bit bitmap information, which is used to indicate the 2 n One of the SL-DRX configurations.

[0189] If the terminal serves as a receiving terminal, the processor 600 is configured to call the program instructions stored in the memory 620 and execute the following according to the obtained program:

[0190] Receiving, by broadcast or multicast, the through-link discontinuous reception SL-DRX configuration information transmitted by the transmitting terminal;

[0191] According to the SL-DRX configuration information, the SL-DRX configuration adopted by the receiving terminal is determined, so that the SL-DRX configuration adopted by the receiving terminal is consistent with the SL-DRX configuration adopted by the transmitting terminal.

[0192] That is to say, the terminal-side device provided in the embodiment of the present application can be used as a sending terminal-side device or as a receiving terminal-side device.

[0193] The transceiver 610 is configured to receive and send data under the control of the processor 600 .

[0194] Among them, Figure 3In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically various circuits of one or more processors represented by processor 600 and memory represented by memory 620, which are linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 610 may be a plurality of components, i.e., a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. For different user devices, the user interface 630 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

[0195] The processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 600 when performing operations.

[0196] Optionally, the processor 600 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a CPLD (Complex Programmable Logic Device).

[0197] See also Figure 4 On the sending terminal side, another information transmission device provided by an embodiment of the present application includes:

[0198] A determining unit 11 is configured to determine direct link discontinuous reception (SL-DRX) configuration information currently required to be transmitted between a transmitting terminal and a receiving terminal;

[0199] The transceiver unit 12 is configured to send the SL-DRX configuration information via broadcast or multicast.

[0200] Specifically, the transceiver unit 12 has the function of sending the SL-DRX configuration information as described in the information transmission method on the sending terminal side, which will not be repeated here.

[0201] See also Figure 5 On the receiving terminal side, another information transmission device provided by an embodiment of the present application includes:

[0202] The transceiver unit 21 is configured to receive, by broadcast or multicast, direct link discontinuous reception (SL-DRX) configuration information transmitted by the sending terminal;

[0203] Specifically, the transceiver unit 21 has the function of receiving the SL-DRX configuration information as described in the information transmission method for receiving the terminal side, which will not be repeated here.

[0204] The determining unit 22 is configured to determine the SL-DRX configuration adopted by the receiving terminal according to the SL-DRX configuration information, so that the SL-DRX configuration adopted by the receiving terminal is consistent with the SL-DRX configuration adopted by the transmitting terminal.

[0205] Optionally,

[0206] The determining unit 22 is further configured to determine SL-DRX configuration information that currently needs to be transmitted between the transmitting terminal and the receiving terminal;

[0207] The transceiver unit 21 may also be configured to send the SL-DRX configuration information that is currently required to be transmitted between the transmitting terminal and the receiving terminal, as determined by the determining unit, by broadcasting or multicasting.

[0208] That is to say, the terminal-side device provided in the embodiment of the present application can be used as a sending terminal-side device or as a receiving terminal-side device.

[0209] It should be noted that the division of units in the embodiments of the present application is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0210] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor 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.

[0211] An embodiment of the present application provides a computing device, which may specifically be a desktop computer, a portable computer, a smart phone, a tablet computer, a personal digital assistant (PDA), etc. The computing device may include a central processing unit (CPU), a memory, input / output devices, etc. The input devices may include a keyboard, a mouse, a touch screen, etc., and the output devices may include a display device such as a liquid crystal display (LCD) or a cathode ray tube (CRT).

[0212] The memory may include a read-only memory (ROM) and a random access memory (RAM), and provides program instructions and data stored in the memory to the processor. In an embodiment of the present application, the memory may be used to store the program of any of the methods provided in the embodiments of the present application.

[0213] The processor calls the program instructions stored in the memory, and the processor is used to execute any of the methods provided in the embodiments of the present application according to the obtained program instructions.

[0214] An embodiment of the present application provides a computer storage medium for storing computer program instructions used by the apparatus provided in the above-mentioned embodiment of the present application, which includes a program for executing any of the methods provided in the above-mentioned embodiment of the present application.

[0215] The computer storage medium can be any available medium or data storage device that can be accessed by a computer, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO)), optical storage (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (such as ROMs, EPROMs, EEPROMs, non-volatile memories (NAND FLASH), solid-state drives (SSDs), etc.).

[0216] The method provided in the embodiment of the present application can be applied to terminal devices or network devices.

[0217] Among them, the terminal equipment may also be referred to as user equipment (User Equipment, abbreviated as "UE"), mobile station (Mobile Station, abbreviated as "MS"), mobile terminal (Mobile Terminal), etc. Optionally, the terminal may have the ability to communicate with one or more core networks via a radio access network (Radio Access Network, RAN). For example, the terminal may be a mobile phone (or called a "cellular" phone), or a computer with mobile properties, etc. For example, the terminal may also be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device.

[0218] The network device may be a base station (e.g., an access point), which refers to a device in an access network that communicates with a wireless terminal through one or more sectors on an air interface. The base station may be used to convert received air frames to and from IP packets, acting as a router between the wireless terminal and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) network. The base station may also coordinate attribute management of the air interface. For example, the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, a base station (NodeB) in WCDMA, an evolved base station (NodeB or eNB or e-NodeB, evolutionary Node B) in LTE, or a gNB in ​​a 5G system, etc. This is not limited in the embodiments of the present application.

[0219] The above method processing flow can be implemented by a software program, and the software program can be stored in a storage medium. When the stored software program is called, the above method steps are executed.

[0220] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) that contain computer-usable program code.

[0221] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0222] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0223] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0224] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. An information transmission method, characterized in that: Applied to a sending terminal, the method includes: Determine discontinuous reception (SL-DRX) configuration information of a direct link that currently needs to be transmitted between a transmitting terminal and a receiving terminal; Sending the SL-DRX configuration information via multicast; The coordination information in the direct link control information SCI or the media access control unit MAC-CE carries the SL-DRX configuration information of the transmitting terminal; wherein the coordination information is a resource set determined by one terminal. In the NR-V2X direct link Mode 2 system, the terminal sends the resource set determined by it to another terminal, and the other terminal uses the resource set for resource selection and data transmission; The coordination information further includes: indication information of the type of information carried in the coordination information, which is used to indicate whether the coordination information carries SL-DRX configuration information or preferred resource information or not-preferred resource information.

2. The method according to claim 1, characterized in that The method further comprises: receiving indication information sent by the network side, where the indication information is used to instruct to transmit direct link discontinuous reception (SL-DRX) configuration information between the transmitting terminal and the receiving terminal in a multicast manner; According to the indication information, it is determined to adopt a multicast manner to send the SL-DRX configuration information.

3. The method according to claim 1 or 2, characterized in that The method further comprises: Receive and store the SL-DRX configuration pre-configured for the terminal by the network side.

4. The method according to claim 3, characterized in that The SL-DRX configuration is pre-set by the network side. n One of the SL-DRX configurations; The SL-DRX configuration information sent by multicast is a bitmap information of n bits, which is used to indicate the 2 n One of the SL-DRX configurations.

5. An information transmission method, characterized in that: Applied to a receiving terminal, the method includes: The through-link discontinuous reception SL-DRX configuration information transmitted by the transmitting terminal is received by multicast; determining, according to the SL-DRX configuration information, a SL-DRX configuration adopted by the receiving terminal, so that the SL-DRX configuration adopted by the receiving terminal is consistent with the SL-DRX configuration adopted by the transmitting terminal; The coordination information in the direct link control information SCI or the media access control unit MAC-CE carries the SL-DRX configuration information of the transmitting terminal; wherein the coordination information is a resource set determined by one terminal. In the NR-V2X direct link Mode 2 system, the terminal sends the resource set determined by it to another terminal, and the other terminal uses the resource set for resource selection and data transmission; The coordination information further includes: indication information of the type of information carried in the coordination information, which is used to indicate whether the coordination information carries SL-DRX configuration information or preferred resource information or not-preferred resource information.

6. The method according to claim 5, characterized in that The method further comprises: Indication information sent by the network side is received, where the indication information is used to indicate that direct link discontinuous reception (SL-DRX) configuration information is transmitted between the transmitting terminal and the receiving terminal in a multicast manner.

7. An information transmission device, characterized in that: Applied to a sending terminal, the device includes: a memory for storing program instructions; The processor is configured to call the program instructions stored in the memory and execute according to the obtained program: Determine discontinuous reception (SL-DRX) configuration information of a direct link that currently needs to be transmitted between a transmitting terminal and a receiving terminal; Sending the SL-DRX configuration information via multicast; The coordination information in the direct link control information SCI or the media access control unit MAC-CE carries the SL-DRX configuration information of the transmitting terminal; wherein the coordination information is a resource set determined by one terminal. In the NR-V2X direct link Mode 2 system, the terminal sends the resource set determined by it to another terminal, and the other terminal uses the resource set for resource selection and data transmission; The coordination information further includes: indication information of the type of information carried in the coordination information, which is used to indicate whether the coordination information carries SL-DRX configuration information or preferred resource information or not-preferred resource information.

8. The device according to claim 7, characterized in that The processor is further configured to call program instructions stored in the memory and execute according to the obtained program: receiving indication information sent by the network side, where the indication information is used to instruct to transmit direct link discontinuous reception (SL-DRX) configuration information between the transmitting terminal and the receiving terminal in a multicast manner; According to the indication information, it is determined to adopt a multicast manner to send the SL-DRX configuration information.

9. The device according to claim 7 or 8, characterized in that The processor is further configured to call program instructions stored in the memory and execute according to the obtained program: Receive and store the SL-DRX configuration pre-configured for the terminal by the network side.

10. The device according to claim 9, characterized in that The SL-DRX configuration is pre-set by the network side. n One of the SL-DRX configurations; The SL-DRX configuration information sent by multicast is a bitmap information of n bits, which is used to indicate the 2 n One of the SL-DRX configurations.

11. An information transmission device, characterized in that: Applied to a receiving terminal, the device includes: a memory for storing program instructions; The processor is configured to call the program instructions stored in the memory and execute according to the obtained program: The through-link discontinuous reception SL-DRX configuration information transmitted by the transmitting terminal is received by multicast; determining, according to the SL-DRX configuration information, a SL-DRX configuration adopted by the receiving terminal, so that the SL-DRX configuration adopted by the receiving terminal is consistent with the SL-DRX configuration adopted by the transmitting terminal; The coordination information in the direct link control information SCI or the media access control unit MAC-CE carries the SL-DRX configuration information of the transmitting terminal; wherein the coordination information is a resource set determined by one terminal. In the NR-V2X direct link Mode 2 system, the terminal sends the resource set determined by it to another terminal, and the other terminal uses the resource set for resource selection and data transmission; The coordination information further includes: indication information of the type of information carried in the coordination information, which is used to indicate whether the coordination information carries SL-DRX configuration information or preferred resource information or not-preferred resource information.

12. The device according to claim 11, characterized in that The processor is further configured to call program instructions stored in the memory and execute according to the obtained program: Indication information sent by the network side is received, where the indication information is used to indicate that direct link discontinuous reception (SL-DRX) configuration information is transmitted between the transmitting terminal and the receiving terminal in a multicast manner.

13. An information transmission device, characterized in that: Applied to a sending terminal, the device includes: a determining unit, configured to determine direct link discontinuous reception (SL-DRX) configuration information currently required to be transmitted between a transmitting terminal and a receiving terminal; a transceiver unit, configured to send the SL-DRX configuration information by multicast; The coordination information in the direct link control information SCI or the media access control unit MAC-CE carries the SL-DRX configuration information of the transmitting terminal; wherein the coordination information is a resource set determined by one terminal. In the NR-V2X direct link Mode 2 system, the terminal sends the resource set determined by it to another terminal, and the other terminal uses the resource set for resource selection and data transmission; The coordination information further includes: indication information of the type of information carried in the coordination information, which is used to indicate whether the coordination information carries SL-DRX configuration information or preferred resource information or not-preferred resource information.

14. An information transmission device, characterized in that: Applied to a receiving terminal, the device includes: The transceiver unit is configured to receive, by multicast, the direct link discontinuous reception (SL-DRX) configuration information transmitted by the sending terminal; a determining unit, configured to determine, according to the SL-DRX configuration information, an SL-DRX configuration adopted by the receiving terminal, so that the SL-DRX configuration adopted by the receiving terminal is consistent with the SL-DRX configuration adopted by the transmitting terminal; The coordination information in the direct link control information SCI or the media access control unit MAC-CE carries the SL-DRX configuration information of the transmitting terminal; wherein the coordination information is a resource set determined by one terminal. In the NR-V2X direct link Mode 2 system, the terminal sends the resource set determined by it to another terminal, and the other terminal uses the resource set for resource selection and data transmission; The coordination information further includes: indication information of the type of information carried in the coordination information, which is used to indicate whether the coordination information carries SL-DRX configuration information or preferred resource information or not-preferred resource information.

15. A computer storage medium, characterized in that The computer storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable the computer to execute the method according to any one of claims 1 to 4, or the method according to claim 5 or 6.

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