Information transmission method, communication device, and readable storage medium

Abstract

The present application discloses an information transmission method, an apparatus and a communication device, which belong to the technical field of communication. The method according to an embodiment of the present application includes a step of: a first communication device determines whether to transmit a first medium access layer control element MAC CE directly or based on first information, the first MAC CE being a discontinuous reception MAC CE in a side link SL, and the first information being information for determining whether to transmit the first medium access layer control element MAC CE.

Description

[Technical field]

[0001] The present invention relates to the technical field of communications, and in particular to an information transmission method, device and communication equipment. [Background technology]

[0002] The Long Term Evolution (LTE) system supports SideLink (SL) from the 12th release version, and data transmission between User Equipment (UE) can be performed directly via SL. SL introduces SL Discontinuous Reception Command Medium Access Control Element (DRX Command MAC Control Element, DRX Command MAC CE), but it is unclear how to transmit SL DRX Command MAC CE. Summary of the Invention [Problem to be solved by the invention]

[0003] The embodiments of the present application provide an information transmission method, apparatus and communication device that can solve the problem of how to transmit the SL DRX Command MAC CE. [Means for solving the problem]

[0004] In the first aspect, The present invention provides an information transmission method including a step of determining whether or not to transmit a first medium access layer control element MAC CE by a first communication device directly or based on first information, the first MAC CE being a discontinuous reception MAC CE in a side link SL, and the first information being information for determining whether or not to transmit the first medium access layer control element MAC CE.

[0005] In the second aspect, An information transmission method is provided, the method including a step of a second communication device transmitting first information, the first information being information for the first communication device to determine whether to transmit a first medium access layer control element MAC CE.

[0006] In the third aspect, An information transmission device is provided, comprising a first processing module for determining whether to transmit a first medium access layer control element MAC CE directly or based on first information, the first MAC CE being a discontinuous reception MAC CE in a side link SL, and the first information being information for determining whether to transmit the first medium access layer control element MAC CE.

[0007] In the fourth aspect, An information transmission device is provided, comprising a first transmission module for transmitting first information, the first information being information for a first communication device to decide whether to transmit a first medium access layer control element MAC CE.

[0008] In a fifth aspect, there is provided a first or second communications device, the first or second communications device including a processor, a memory, and a program or command stored in the memory and executable by the processor, the program or command being executed by the processor to implement steps of a method according to the first or second aspect.

[0009] In a sixth aspect, there is provided a first communications device including a processor and a communications interface, wherein the processor is for determining whether to transmit a first media access layer control element MAC CE directly or based on first information, the first MAC CE being a discontinuous reception MAC CE in a side link SL, and the first information being information for determining whether to transmit the first media access layer control element MAC CE.

[0010] In a seventh aspect, there is provided a second communications device including a processor and a communications interface, the communications interface for transmitting first information, the first information being information for the first communications device to decide whether to transmit a first medium access layer control element MAC CE.

[0011] In an eighth aspect, there is provided a readable storage medium having a program or commands stored thereon, the program or commands implementing the steps of the method according to the first aspect or the steps of the method according to the second aspect when executed by a processor.

[0012] In a ninth aspect, there is provided a chip including a processor and a communications interface, the communications interface coupled to the processor, the processor configured to execute programs or commands to implement a method according to the first aspect or a method according to the second aspect.

[0013] In a tenth aspect, there is provided a computer program / program product stored on a non-volatile storage medium and adapted to implement the steps of the method according to the first or second aspect when executed by at least one processor. Effect of the Invention

[0014] In an embodiment of the present application, it is determined whether to transmit a first medium access layer control element MAC CE directly or based on the first information, and the first MAC CE is a discontinuous reception MAC CE in the side link SL, in this way, the transmission mechanism of the first MAC CE is revealed, and the terminal can transmit the first MAC CE based on the transmission mechanism. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a structural diagram illustrating a communication system to which an embodiment of the present application can be applied. [Diagram 2] 1 is a schematic flowchart illustrating an information transmission method according to an embodiment of the present application. [Diagram 3] 2 is a second schematic flowchart showing an information transmission method according to an embodiment of the present application. [Figure 4] FIG. 1 is a schematic diagram showing a module of an information transmission device according to an embodiment of the present application. [Diagram 5] FIG. 1 is a structural block diagram showing a communication device according to an embodiment of the present application; [Figure 6] FIG. 2 is a structural block diagram showing a terminal according to an embodiment of the present application; [Figure 7] FIG. 2 is a second schematic diagram showing a module of an information transmission device according to an embodiment of the present application. [Figure 8] FIG. 2 is a structural block diagram showing a network side device according to an embodiment of the present application; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. It is obvious that the described embodiments are only a part of the embodiments of the present application, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present application belong to the protection scope of the present application.

[0017] The terms "first", "second", and the like in the specification and claims of this application are intended to distinguish between similar objects and not to describe a particular order or sequence. It should be understood that the data used in this manner are interchangeable where appropriate so that the embodiments of this application can be practiced in an order other than those shown or described herein, and that the objects distinguished by "first" and "second" are generally of the same kind and the number of objects is not limited, for example, the first object may be one or more. In the specification and claims, "and / or" indicates at least one of the connected objects, and the symbol " / " generally indicates that the objects related to the preceding and following objects are in an "or" relationship.

[0018] It should be noted that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used in other systems and wireless technologies as well as the systems and wireless technologies mentioned above. For illustrative purposes, a New Radio (NR) system is described below, and the term NR is used in much of the description below, however, these techniques may be applied to systems other than NR systems, such as 6th Generation (6G) communication systems.

[0019] FIG. 1 shows a structural diagram of a wireless communication system to which the embodiment of the present application can be applied. The wireless communication system includes a terminal 11 and a network side device 12. The terminal 11 may be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a terminal side device such as a mobile phone, a tablet computer, a laptop computer also called a notebook computer, a personal digital assistant (PDA), a palmtop computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (Mobile Internet Device, MID), a wearable device, a vehicle-mounted device (VUE), a pedestrian terminal (PUE), etc., and the wearable device includes a smart watch, a bracelet, an earphone, a pair of glasses, etc. In addition, in the embodiment of the present application, the specific type of the terminal 11 is not limited. The network side equipment 12 may be a base station or a core network equipment, and the base station may be called a Node B, an evolved Node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting receiving point (TRP), or any other suitable term in the above field, and the base station is not limited to a specific technical term as long as it can achieve a similar technical effect. Note that, in the embodiment of the present application, only a base station in an NR system is taken as an example, and the specific type of the base station is not limited.

[0020] The information transmission method provided in the embodiments of the present application will be described in detail below through several embodiments and their application scenarios with reference to the drawings.

[0021] As shown in FIG. 2, an embodiment of the present application provides an information transmission method, which includes the following steps. Step 201: A first communication device determines whether to send a first medium access layer control element MAC CE directly or based on first information, where the first MAC CE is a discontinuous reception MAC CE in a side link SL, and the first information is information for determining whether to send the first medium access layer control element MAC CE.

[0022] In the embodiment of the present application, the above-mentioned first communication device is specifically a first terminal, and the above-mentioned Discontinuous Reception (DRX) MAC CE is for instructing the terminal to deactivate related DRX timers (such as DRX-onDurationTimer, DRX-InactivityTimer), so that the terminal enters a DRX inactive state.

[0023] In an embodiment of the present application, it is determined whether to transmit a first medium access layer control element MAC CE directly or based on the first information, and the first MAC CE is a discontinuous reception MAC CE in the side link SL, in this way, the transmission mechanism of the first MAC CE is revealed, and the terminal can transmit the first MAC CE based on the transmission mechanism.

[0024] Optionally, the first information includes at least one of the following: First: instruction information transmitted by the second communication device for instructing whether or not to transmit the first MAC CE Second: Terminal auxiliary information transmitted by the second communication device 3rd: 1st MAC CE priority information

[0025] In the embodiment of the present application, the above-mentioned second communication device is a second terminal or a network side device, and the network side device can be a serving base station of a first terminal or a serving base station of a second terminal. Optionally, the serving base station of the first terminal and the serving base station of the second terminal can be the same or different.

[0026] Regarding the first point, the instruction information may be, for example, an explicit command indicated by 1 bit, and the first terminal directly determines whether to transmit or not transmit the first MAC CE according to the instruction information. Specifically, if the instruction information indicates to transmit the first MAC CE, the first communication device transmits the first MAC CE, and if the instruction information indicates not to transmit the first MAC CE, the first communication device does not transmit the first MAC CE.

[0027] Regarding the second point, the terminal auxiliary information may specifically be the terminal auxiliary information of the second terminal, and the first terminal determines whether to send the first MAC CE according to the terminal auxiliary information.

[0028] Further optionally, the above terminal auxiliary information is: Cellular network communication (Uu) discontinuous reception setting information; Quality of service QoS information; a destination L2 ID.

[0029] Here, the first terminal determines various requirements to be satisfied according to the above terminal auxiliary information, and further determines whether to send the above first MAC CE.

[0030] Regarding the third item above, optionally, the priority information of the first MAC CE is a fixed priority value; Or, the priority information of the first MAC CE is determined according to a priority value of at least one SL logical channel; Or, the priority information of the first MAC CE is determined according to the multiplexing priority of the SL medium access control protocol data unit MAC PDU.

[0031] If the priority information of the above first MAC CE is a fixed priority value, one can be selected as the priority of the first MAC CE from the priority value range [1, 8] allowed by the protocol, for example, priority value = 8.

[0032] When the priority information of the above-mentioned first MAC CE is determined according to the priority value of at least one SL logical channel, the priority information of the first MAC CE can be determined according to the priority of the highest priority logical channel among the SL logical channels having data to be transmitted, or the priority information of the first MAC CE can be determined according to the highest priority value among the configured SL logical channels.

[0033] When the priority information of the first MAC CE is determined according to the multiplexing priority of the SL medium access control protocol data unit MAC PDU, the multiplexing priority of the SL MAC PDU is: Shared control channel data > 1st MAC CE > SL CSI reporting MAC CE > Service channel data, Shared control channel data > SL CSI reporting MAC CE > 1st MAC CE > service channel data, The MAC CE may be at least one of: shared control channel data>SL CSI report MAC CE>service channel data>1st MAC CE.

[0034] Optionally, in an embodiment of the present application, when the first information is priority information of the first MAC CE, and the priority information of the first MAC CE is determined according to a multiplexing priority of a SL MAC PDU, the method includes: The method further includes the step of prioritizing uplink transmission if the uplink transmission and the SL transmission satisfy a preset condition and the SL transmission includes only the first MAC CE.

[0035] Here, it can be seen that the priority of the first MAC CE is always lower than the SL service channel data.

[0036] The preset condition may be that uplink transmission and SL transmission cannot be performed simultaneously, or that one of uplink transmission and SL transmission must be selected due to power limitations.

[0037] Specifically, if the above transmission and the SL transmission satisfy the preset condition, if the SL transmission includes only the first MAC CE, the uplink transmission is prioritized and the SL transmission is stopped.

[0038] In addition, when the priority information of the first MAC CE is determined according to a fixed priority value (the smaller the priority value, the higher the priority) or according to the priority value of at least one SL logical channel, if the uplink transmission and the SL transmission meet the preset condition and the first MAC CE is included in the SL transmission, the existing rule is reused. That is, two thresholds, namely, the SL priority threshold and the UL priority threshold, are set in the network. If the highest priority value in the SL transmission is smaller than the SL priority threshold and the highest priority value in the UL transmission is equal to or larger than the UL priority threshold, the SL is prioritized; otherwise, the UL is prioritized.

[0039] When the priority information of the first MAC CE is determined according to the multiplexing priority of the SL MAC PDU, if the priority of the first MAC CE is always lower than the SL service channel data and the SL transmission includes the first MAC CE and the second information, the above-mentioned existing rule is reused, and in this case, it is only necessary to consider whether the second information satisfies the judgment condition that "the highest priority value in the SL transmission is smaller than the SL priority threshold value", where the second information includes at least one of the SL CSI reporting MAC CE and the SL service channel data.

[0040] When the priority information of the first MAC CE is determined according to the multiplexing priority of the SL MAC PDU, the priority of the first MAC CE is always higher than the SL service channel data, and when the SL transmission contains only the first MAC CE, the UL is always prioritized.

[0041] When the priority information of the first MAC CE is determined according to the multiplexing priority of the SL MAC PDU, if the priority of the first MAC CE is always higher than the SL service channel data and the SL transmission includes the first MAC CE and the above-mentioned second information, the existing rule is reused, and in this case, the judgment condition that "the highest priority value in the SL transmission is smaller than the SL priority threshold" is satisfied. Therefore, it is only necessary to consider whether the comparison result of the UL transmission satisfies the judgment condition that "the highest priority value in the UL transmission is equal to or greater than the UL priority threshold" and further determine whether to prioritize UL or SL.

[0042] Optionally, the method according to the embodiments of the present application further comprises: The first communication device, Preset fixed attributes and and a HARQ attribute of the at least one SL logical channel.

[0043] For example, the first communication device selects one from the enumeration type [enabled, disabled] of HARQ attribute values ​​permitted by the protocol as the HARQ attribute of the first MAC CE, and for example, the HARQ attribute of the first MAC CE is fixed to disabled.

[0044] Also, for example, the first communication device is determined according to the HARQ attribute of the logical channel with the highest priority value among the SL logical channels having data to be transmitted, or according to the HARQ attribute of the logical channel with the highest priority value among the configured SL logical channels.

[0045] Also, for example, when the first MAC CE is transmitted alone, the HARQ attribute of the first MAC CE is determined according to a preset fixed attribute, and when the first MAC CE is transmitted together with SL data, the HARQ attribute of the first MAC CE is determined according to the HARQ attribute of at least one SL logical channel. In this way, when the HARQ attribute of the logical channel with the highest priority value among the SL logical channels having data to be transmitted is disabled and the HARQ attribute of the first MAC CE is fixed to enabled, the HARQ attribute of the first MAC CE can be temporarily changed to perform multiplexing transmission together according to the data to be transmitted.

[0046] Optionally, the method according to the embodiment of the present application further comprises, after the step of determining a hybrid automatic repeat request (HARQ) attribute of the first MAC CE: The method further includes: determining, by the first communication device, a HARQ attribute of a SL transmission including at least the first MAC CE according to a preset rule; The preset rule is: If a HARQ attribute of the first MAC CE is a preset fixed attribute, determining a HARQ attribute of the SL transmission according to the preset fixed attribute of the first MAC CE; When the HARQ attribute of the first MAC CE is the HARQ attribute of at least one SL logical channel, if the SL transmission includes first data, determining a HARQ attribute of the SL transmission according to a HARQ attribute of a logical channel with a highest priority value among the SL logical channels corresponding to the first data; When the HARQ attribute of the first MAC CE is the HARQ attribute of at least one SL logical channel, if the SL transmission does not include first data, determining the HARQ attribute of the SL transmission according to the HARQ attribute of the logical channel with the highest priority value among the configured SL logical channels; When the HARQ attribute of the first MAC CE is determined according to a preset fixed attribute and a HARQ attribute of at least one SL logical channel, if the SL transmission includes first data, determining a HARQ attribute of the SL transmission according to a HARQ attribute of a logical channel with a highest priority value among the SL logical channels corresponding to the first data; and when the HARQ attribute of the first MAC CE is determined according to a preset fixed attribute and a HARQ attribute of at least one SL logical channel, if the SL transmission does not include first data, determining a HARQ attribute of the SL transmission according to a preset fixed attribute of the first MAC CE.

[0047] Optionally, the first data is a MAC service data unit SDU.

[0048] In an embodiment of the present application, it is determined whether to transmit a first medium access layer control element MAC CE directly or based on the first information, and the first MAC CE is a discontinuous reception MAC CE in the side link SL, in this way, the transmission mechanism of the first MAC CE is revealed, and the terminal can transmit the first MAC CE based on the transmission mechanism.

[0049] As shown in FIG. 3, the embodiment of the present application further provides an information transmission method, including the following steps. Step 301: A second communication device sends first information, where the first information is information for the first communication device to determine whether to send a first medium access layer control element MAC CE.

[0050] In this step, the above-mentioned first communication device is specifically a first terminal. The above-mentioned second communication device is a second terminal or a network side device, and the network side device can be the serving base station of the first terminal or the serving base station of the second terminal. Optionally, the serving base station of the first terminal and the serving base station of the second terminal can be the same or different.

[0051] The Discontinuous Reception (DRX) MAC CE is for instructing the UE to stop operation of related DRX timers (e.g., DRX-onDurationTimer, DRX-InactivityTimer) so that the UE enters the DRX inactive state.

[0052] In an embodiment of the present application, first information is transmitted, and the first information is information for the first communication device to determine whether to transmit a first medium access layer control element MAC CE, so that the first communication device can determine whether to transmit the first MAC CE according to the first information.

[0053] Optionally, the first information comprises: Indication information for instructing whether to transmit the first MAC CE or not; and terminal auxiliary information.

[0054] Optionally, the terminal auxiliary information comprises: Uu discontinuous reception setting information, Quality of service QoS information; a target Layer 2 identifier.

[0055] The above instruction information and terminal auxiliary information have been described in detail in the embodiment of the method on the first communication device side, so description thereof will be omitted here.

[0056] In an embodiment of the present application, first information is transmitted, and the first information is information for the first communication device to determine whether to transmit a first medium access layer control element MAC CE, so that the first communication device can determine whether to transmit the first MAC CE according to the first information.

[0057] In addition, the information transmission method provided in the embodiments of the present application may be executed by an information transmission device or a control module for executing the information transmission method in the information transmission device. In the embodiments of the present application, the information transmission device provided in the embodiments of the present application will be described by taking as an example a case in which the information transmission device executes the information transmission method.

[0058] As shown in FIG. 4, the embodiment of the present application is An information transmission device 400 is provided, comprising a first processing module 401 for determining whether to transmit a first medium access layer control element MAC CE directly or based on first information, the first MAC CE being a discontinuous reception MAC CE in a side link SL, and the first information being information for determining whether to transmit a first medium access layer control element MAC CE.

[0059] Optionally, the apparatus according to the embodiment of the present application further comprises: a transmitting module for transmitting the first MAC CE when the first processing module determines to transmit the first MAC CE.

[0060] Optionally, the first information comprises: Indication information transmitted by a second communication device for instructing whether to transmit the first MAC CE or not; Terminal auxiliary information transmitted by the second communication device; and priority information of the first MAC CE.

[0061] Optionally, the terminal auxiliary information comprises: Uu discontinuous reception setting information, Quality of service QoS information; a target Layer 2 identifier.

[0062] Optionally, the priority information of the first MAC CE is a fixed priority value; Or, the priority information of the first MAC CE is determined according to a priority value of at least one SL logical channel; Or, the priority information of the first MAC CE is determined according to the multiplexing priority of the SL medium access control protocol data unit MAC PDU.

[0063] Optionally, when the first information is priority information of the first MAC CE, and the priority information of the first MAC CE is determined according to a multiplexing priority of a SL MAC PDU, the device: The wireless LAN device further includes a second processing module for prioritizing uplink transmission if the uplink transmission and the SL transmission satisfy a preset condition and the SL transmission includes only the first MAC CE.

[0064] Optionally, the device according to the embodiment of the present application further comprises: Preset fixed attributes and HARQ attributes of at least one SL logical channel; a first determining module for determining a hybrid automatic repeat request (HARQ) attribute of the first MAC CE according to at least one of the following:

[0065] Optionally, the device according to the embodiment of the present application further comprises: After the first determining module determines the HARQ attribute of the first MAC CE, the second determining module is further provided for determining a HARQ attribute of a SL transmission including at least the first MAC CE according to a preset rule; The preset rule is: If a HARQ attribute of the first MAC CE is a preset fixed attribute, determining a HARQ attribute of the SL transmission according to the preset fixed attribute of the first MAC CE; When the HARQ attribute of the first MAC CE is the HARQ attribute of at least one SL logical channel, if the SL transmission includes first data, determining a HARQ attribute of the SL transmission according to a HARQ attribute of a logical channel with a highest priority value among the SL logical channels corresponding to the first data; When the HARQ attribute of the first MAC CE is the HARQ attribute of at least one SL logical channel, if the SL transmission does not include first data, determining the HARQ attribute of the SL transmission according to the HARQ attribute of the logical channel with the highest priority value among the configured SL logical channels; When the HARQ attribute of the first MAC CE is determined according to a preset fixed attribute and a HARQ attribute of at least one SL logical channel, if the SL transmission includes first data, determining a HARQ attribute of the SL transmission according to a HARQ attribute of a logical channel with a highest priority value among the SL logical channels corresponding to the first data; and when the HARQ attribute of the first MAC CE is determined according to a preset fixed attribute and a HARQ attribute of at least one SL logical channel, if the SL transmission does not include first data, determining a HARQ attribute of the SL transmission according to a preset fixed attribute of the first MAC CE.

[0066] An apparatus according to an embodiment of the present application determines whether to transmit a first medium access layer control element MAC CE directly or based on first information, where the first MAC CE is a discontinuous reception MAC CE in a side link SL, in this way, a transmission mechanism of the first MAC CE is revealed, and the terminal can transmit the first MAC CE based on the transmission mechanism.

[0067] The information transmission device in the embodiment of the present application may be a device, a device with an operating system, or an electronic device, or may be a component, an integrated circuit, or a chip in a terminal. The device or electronic device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of terminals 11 listed above. The non-mobile terminal may be, but is not limited to, a server, a network attached storage (NAS), a personal computer (PC), a television (TV), an automated teller machine or a kiosk, etc., but is not specifically limited in the embodiment of the present application.

[0068] The apparatus provided in the embodiments of the present application can realize each process realized by the method embodiments of Fig. 2 and achieve the same technical effects. To avoid duplication, the description will be omitted here.

[0069] Optionally, as shown in FIG. 5, the embodiment of the present application further provides a communication device 500, including a processor 501, a memory 502, and a program or command stored in the memory 502 and executable by the processor 501. If the communication device 500 is the above-mentioned first communication device, when the program or command is executed by the processor 501, each process of the embodiment of the information transmission method applied to the above-mentioned first communication device can be realized, and the same technical effect can be achieved. If the communication device 500 is the above-mentioned second communication device, when the program or command is executed by the processor 501, each process of the embodiment of the information transmission method applied to the above-mentioned second communication device can be realized, and the same technical effect can be achieved. To avoid repetition, the description will be omitted here.

[0070] An embodiment of the present application further provides a first communication device, which is specifically the above-mentioned first terminal including a processor and a communication interface, wherein the processor is for determining whether to send a first medium access layer control element MAC CE directly or based on first information, the first MAC CE is a discontinuous reception MAC CE in a side link SL, and the first information is information for determining whether to send the first medium access layer control element MAC CE.

[0071] This embodiment corresponds to the above-mentioned embodiment of the method on the first communication device side, and each implementation process and realization manner of the above-mentioned embodiment of the method are all applicable to this embodiment, and can achieve the same technical effect. Specifically, Figure 6 is a hardware structure schematic diagram of a terminal for implementing the embodiment of the present application, and the terminal can specifically be the above-mentioned first terminal or second terminal, and the terminal 600 includes at least some components such as, but not limited to, a high frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, and a processor 610.

[0072] Those skilled in the art will understand that the terminal 600 may further include a power source (e.g., a battery) for supplying power to each component, and the power source may be logically connected to the processor 610 via a power management system, thereby enabling the power management system to realize functions such as charge / discharge management and power consumption management. The terminal structure shown in FIG. 6 does not limit the terminal, and the terminal may include more or fewer components than those shown, or a combination of some components, or a different component arrangement, but the description will be omitted here.

[0073] It should be understood that in the embodiment of the present application, the input unit 604 may include a graphics processing unit (GPU) 6041 for processing image data of static or video captured by an image capture device (e.g., a camera) in a video capture mode or an image capture mode, and a microphone 6042. The display unit 606 may include a display panel 6061, which may be arranged in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 607 includes a touch panel 6071 and other input devices 6072. The touch panel 6071 is also called a touch screen. The touch panel 6071 may include two parts: a touch detection device and a touch controller. The other input devices 6072 may include, but are not limited to, a physical keyboard, a function button (e.g., a volume control button, a switch button, etc.), a trackball, a mouse, and an operation lever, and the description thereof is omitted here.

[0074] In the embodiment of the present application, the high frequency unit 601 receives downlink data from the network side device, and then processes the data in the processor 610. Also, the high frequency unit 601 transmits uplink data to the network side device. Typically, the high frequency unit 601 includes, but is not limited to, an antenna, at least one amplifier, a receiver-transmitter, a coupler, a low-noise amplifier, a duplexer, etc.

[0075] The memory 609 can be used to store software programs or commands and various data. The memory 609 may mainly include a program or command storage area capable of storing an operating system, an application or command required for at least one function (e.g., a sound playback function, an image playback function, etc.), and a data storage area. The memory 609 may also include a high-speed random access memory, and may also include a non-volatile memory, which 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. For example, at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage device.

[0076] The processor 610 may include one or more processing units. Optionally, the processor 610 may be integrated with an application processor that mainly processes an operating system, a user interface, and applications or commands, etc., and a modem processor, such as a baseband processor that mainly processes wireless communication. It may be understood that the modem processor may not be integrated into the processor 610.

[0077] If the terminal is the above-mentioned first terminal, the processor 610 is for determining whether to transmit a first medium access layer control element MAC CE directly or based on first information, the first MAC CE being a discontinuous reception MAC CE in a side link SL, and the first information is information for determining whether to transmit a first medium access layer control element MAC CE.

[0078] Optionally, the first information comprises: Indication information transmitted by a second communication device for instructing whether to transmit the first MAC CE or not; Terminal auxiliary information transmitted by the second communication device; and priority information of the first MAC CE.

[0079] Optionally, the terminal auxiliary information comprises: Uu discontinuous reception setting information, Quality of service QoS information; a target Layer 2 identifier.

[0080] Optionally, the priority information of the first MAC CE is a fixed priority value; Or, the priority information of the first MAC CE is determined according to a priority value of at least one SL logical channel; Or, the priority information of the first MAC CE is determined according to the multiplexing priority of the SL medium access control protocol data unit MAC PDU.

[0081] Optionally, when the first information is priority information of the first MAC CE, and the priority information of the first MAC CE is determined according to a multiplexing priority of a SL MAC PDU, the processor 610 further comprises: If the uplink transmission and the SL transmission satisfy the preset condition, the SL transmission includes only the first MAC CE and is used to prioritize the uplink transmission.

[0082] Optionally, the processor 610 may further include: Preset fixed attributes and HARQ attributes of at least one SL logical channel; The first MAC CE is used to determine a hybrid automatic repeat request (HARQ) attribute of the first MAC CE according to at least one of the following:

[0083] Optionally, the processor 610 may further include: A first communication device is used to determine a HARQ attribute of a SL transmission including at least a first MAC CE according to a preset rule; The preset rule is: If a HARQ attribute of the first MAC CE is a preset fixed attribute, determining a HARQ attribute of the SL transmission according to the preset fixed attribute of the first MAC CE; When the HARQ attribute of the first MAC CE is the HARQ attribute of at least one SL logical channel, if the SL transmission includes first data, determining a HARQ attribute of the SL transmission according to a HARQ attribute of a logical channel with a highest priority value among the SL logical channels corresponding to the first data; When the HARQ attribute of the first MAC CE is the HARQ attribute of at least one SL logical channel, if the SL transmission does not include first data, determining the HARQ attribute of the SL transmission according to the HARQ attribute of the logical channel with the highest priority value among the configured SL logical channels; When the HARQ attribute of the first MAC CE is determined according to a preset fixed attribute and a HARQ attribute of at least one SL logical channel, if the SL transmission includes first data, determining a HARQ attribute of the SL transmission according to a HARQ attribute of a logical channel with a highest priority value among the SL logical channels corresponding to the first data; and when the HARQ attribute of the first MAC CE is determined according to a preset fixed attribute and a HARQ attribute of at least one SL logical channel, if the SL transmission does not include first data, determining a HARQ attribute of the SL transmission according to a preset fixed attribute of the first MAC CE.

[0084] If the terminal is the above-mentioned second terminal, the radio frequency unit 601 is used to send first information, and the first information is information for the first communication device to determine whether to send a first medium access layer control element MAC CE; Optionally, the first information comprises: Indication information for instructing whether to transmit the first MAC CE or not; and terminal auxiliary information.

[0085] Optionally, the terminal auxiliary information comprises: Uu discontinuous reception setting information, Quality of service QoS information; a target Layer 2 identifier.

[0086] In an embodiment of the present application, it is determined whether to transmit a first medium access layer control element MAC CE directly or based on the first information, and the first MAC CE is a discontinuous reception MAC CE in the side link SL, in this way, the transmission mechanism of the first MAC CE is revealed, and the terminal can transmit the first MAC CE based on the transmission mechanism.

[0087] As shown in FIG. 7, the embodiment of the present application is The present invention further provides an information transmission device 700 comprising a first transmission module 701 for transmitting first information, the first information being information for a first communication device to determine whether to transmit a first medium access layer control element MAC CE.

[0088] Optionally, the device according to the embodiment of the present application further comprises: Further comprising a third determination module for determining the first information.

[0089] Optionally, the first information comprises: Indication information for instructing whether to transmit the first MAC CE or not; and terminal auxiliary information.

[0090] Optionally, the terminal auxiliary information comprises: Uu discontinuous reception setting information, Quality of service QoS information; a target Layer 2 identifier.

[0091] An apparatus according to an embodiment of the present application transmits first information, the first information being information for a first communication device to determine whether to transmit a first medium access layer control element MAC CE, such that the first communication device can determine whether to transmit the first MAC CE according to the first information.

[0092] The embodiment of the present application further provides a network side device (the above-mentioned second communication device), including a processor and a communication interface. The communication interface is for transmitting first information, and the first information is information for the first communication device to determine whether to transmit a first medium access layer control element MAC CE. The embodiment of the network side device corresponds to the embodiment of the method on the above-mentioned second communication device side, and each implementation process and realization manner of the above-mentioned method embodiment are all applicable to the embodiment of the network side device, and can achieve the same technical effects.

[0093] Specifically, an embodiment of the present application further provides a network side device (above-mentioned second communication device). As shown in Fig. 8, the network side device 800 includes an antenna 801, a high-frequency device 802, and a baseband device 803. The antenna 801 is connected to the high-frequency device 802. In the uplink direction, the high-frequency device 802 receives information through the antenna 801, and transmits the received information to the baseband device 803 for processing. In the downlink direction, the baseband device 803 processes the information to be transmitted and transmits it to the high-frequency device 802, and the high-frequency device 802 transmits the received information through the antenna 801 after processing it.

[0094] The above-mentioned band processing device may be located in the baseband device 803. In the above embodiment, the method performed by the second communication device may be implemented in the baseband device 803. The baseband device 803 includes a processor 804 and a memory 805.

[0095] The baseband device 803 may include, for example, at least one baseband plate, and the baseband plate is provided with a number of chips. As shown in Fig. 8, one of the chips is, for example, a processor 804, which is connected to a memory 805 to call a program in the memory 805 and perform the operations of the second communication device side shown in the above embodiment of the method.

[0096] The baseband device 803 may further include a network interface 806 for exchanging information with the radio frequency device 802. The interface may be, for example, a common public radio interface (abbreviated as CPRI).

[0097] Specifically, the network side device (above-mentioned second communication device) of the embodiment of the present invention further includes a command or program stored in memory 805 and executable by processor 804. Processor 804 invokes the command or program in memory 805 to execute the method performed by each module shown in Fig. 7 to achieve the same technical effect. To avoid duplication, the description will be omitted here.

[0098] The embodiments of the present application further provide a readable storage medium having a program or command stored therein, which, when executed by a processor, can realize each process of the above-mentioned information transmission method embodiments and achieve the same technical effects. To avoid repetition, the description is omitted here.

[0099] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0100] The embodiments of the present application further provide a chip, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor is for executing a program or command to realize each process of the above-mentioned information transmission method embodiments, and can achieve the same technical effects. To avoid duplication, the description is omitted here.

[0101] It should be understood that the chip described in the embodiments of the present application may also be referred to as a system on a chip, a system chip, a chip system, or an SoC, etc.

[0102] The embodiments of the present application further provide a computer program product, which is stored in a non-volatile storage medium, and is configured to implement each process of the above-mentioned information transmission method embodiments by being executed by at least one processor, so as to achieve the same technical effects. To avoid duplication, the description is omitted here.

[0103] It should be noted that, in this specification, the terms "comprise", "include", "comprise" or any other variants are intended to cover a non-exclusive inclusion such that a process, method, article or apparatus including a set of elements includes not only those elements, but also other elements not expressly listed, or inherent elements of such a process, method, article or apparatus. Unless further limited, an element limited by the statement "comprises" does not exclude the presence of additional identical elements in the process, method, article or apparatus including the element. It should also be noted that the scope of the method and apparatus in the embodiments of this application is not limited to performing the functions in the order shown or discussed herein, and may further include performing the functions substantially simultaneously or in the opposite order, depending on the functions involved. For example, the above methods may be performed in a different order than described, and further, steps may be added, omitted, or combined. Also, features described with reference to some examples may be combined in other examples.

[0104] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be realized by combining software with a necessary general-purpose hardware platform, and of course, they can also be realized by hardware, but in many cases the former is a more preferred embodiment. Based on this view, the technical solution of the present application may be essentially or in part contributed to the prior art may be embodied as a computer software product, which is stored in a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and includes some commands for causing a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in the embodiments of the present application.

[0105] Although the examples of the present application have been described above with reference to the drawings, the present application is not limited to the above-mentioned specific embodiments, which are not restrictive but merely illustrative. A person skilled in the art can create various other aspects based on the suggestions of the present application without departing from the spirit of the present application and the scope of protection of the claims, and all of these are included in the scope of protection of the present application.

[0106] (CROSS REFERENCE TO RELATED APPLICATIONS) This application claims priority to patent application No. 202110358462.0 filed in China on April 1, 2021, the entire contents of which are incorporated herein by reference.

Claims

1. a step of determining whether to transmit a first medium access layer control element MAC CE directly or based on first information by the first communication device, the first MAC CE being a discontinuous reception MAC CE in a side link SL, the first information being information for determining whether to transmit the first medium access layer control element MAC CE; Including, The first communication device is a first terminal, and the discontinuous reception MAC CE is for instructing to stop operation of a DRX on-duration timer DRX-onDurationTimer and / or a DRX inactivity timer DRX-InactivityTimer. Method of information transmission.

2. The first information is instruction information transmitted by a second communication device for instructing whether to transmit or not transmit the first MAC CE; Terminal auxiliary information transmitted by the second communication device; Priority information of the first MAC CE; and 2. The information transmission method according to claim 1, comprising at least one of the following steps:

3. The terminal auxiliary information is Uu discontinuous reception setting information; Quality of service (QoS) information; A target Layer 2 identifier; and 3. The information transmission method according to claim 2, comprising at least one of the following:

4. the priority information of the first MAC CE is a fixed priority value; or The priority information of the first MAC CE is determined according to a priority value of at least one SL logical channel; or The priority information of the first MAC CE is determined according to a multiplexing priority of an SL medium access control protocol data unit (MAC PDU); 3. The information transmission method according to claim 2.

5. When the first information is priority information of the first MAC CE, and the priority information of the first MAC CE is determined according to a multiplexing priority of an SL MAC PDU, the information transmission method includes: and if the uplink transmission and the SL transmission satisfy a preset condition, prioritizing the uplink transmission if the SL transmission includes only the first MAC CE.

5. The information transmission method according to claim 4.

6. The first communication device, Preset fixed attributes and - HARQ attributes of at least one SL logical channel; 2. The method of claim 1, further comprising: determining a hybrid automatic repeat request (HARQ) attribute of the first MAC CE according to at least one of:

7. After the step of determining a hybrid automatic repeat request (HARQ) attribute of the first MAC CE, The method further includes: determining, by the first communication device, a HARQ attribute of the SL transmission including at least the first MAC CE according to a preset rule; The preset rule is: If a HARQ attribute of the first MAC CE is a preset fixed attribute, determining a HARQ attribute of the SL transmission according to the preset fixed attribute of the first MAC CE; When the HARQ attribute of the first MAC CE is a HARQ attribute of at least one SL logical channel, if the SL transmission includes first data, determining a HARQ attribute of the SL transmission according to a HARQ attribute of a logical channel with a highest priority value among the SL logical channels corresponding to the first data; When the HARQ attribute of the first MAC CE is the HARQ attribute of at least one SL logical channel, if the SL transmission does not include first data, determining the HARQ attribute of the SL transmission according to the HARQ attribute of a logical channel with a highest priority value among the configured SL logical channels; When a HARQ attribute of the first MAC CE is determined according to a preset fixed attribute and a HARQ attribute of at least one SL logical channel, if the SL transmission includes first data, determining a HARQ attribute of the SL transmission according to a HARQ attribute of a logical channel with a highest priority value among the SL logical channels corresponding to the first data; and determining a HARQ attribute of the SL transmission according to a preset fixed attribute of the first MAC CE if the SL transmission does not include first data, when a HARQ attribute of the first MAC CE is determined according to a preset fixed attribute and a HARQ attribute of at least one SL logical channel.

8. When the first communication device determines a HARQ attribute of the first MAC CE according to the preset fixed attribute, the information transmission method further comprises: The method of claim 6 , further comprising the first communication device fixing a HARQ attribute of the first MAC CE to disabled.

9. A communications device comprising a processor, a memory, and a program or command stored in the memory and executable by the processor, the communications device realizing the steps of the information transmission method according to any one of claims 1 to 8 when the program or command is executed by the processor.

10. A readable storage medium having a program or command stored therein, the program or command being executed by a processor to implement the steps of the information transmission method according to any one of claims 1 to 8.

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