V2X communication method, user equipment, base station and electronic equipment

Abstract

This application provides a V2X communication method, user equipment, base station, and electronic device, belonging to the field of communications technology. The method includes receiving configuration information regarding V2X communication of a second RAT system, transmitted by a base station of a first radio access technology (RAT) system via higher-layer signaling, and performing corresponding bypass transmission based on the configuration information regarding V2X communication of the second RAT system. Based on the solutions of the embodiments of this application, control of V2X communication of a second RAT system by a base station of the first RAT system is achieved within the first RAT system.

Description

Technical Field

[0001] The present application relates to the field of communication technology. Specifically, the present application relates to a V2X communication method, user equipment, base station and electronic equipment. Background Art

[0002] The 3GPP (3rd Generation Partnership Project) LTE (Long Term Evolution) V2X (vehicle-to-everything) standard defines two communication methods: centralized (LTE-V-Cell) and distributed (LTE-V-Direct). Centralized, also known as cellular, requires a base station as a control center; distributed, also known as direct, does not require base stations as support. In other words, centralized LTE V2X technology requires the deployment of LTE base stations to be used, while distributed LTE V2X technology can be used without LTE base stations.

[0003] After mobile communications enter the 5G era, NR (new radio) base stations may gradually replace LTE base stations to provide support for UU port (the interface between user equipment and the network) communications. However, LTE's vertical service V2X may still have market space and may not be completely replaced by NR V2X. In this case, there may be a terminal that has both an NR UU module and an LTE V2X module, and the corresponding network deployment may be only an NR base station but no LTE base station. For the above type of terminal, if centralized LTE V2X technology is still supported, how to achieve control of LTE V2X communications? There is no corresponding solution in the existing technology. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to solve at least one of the above technical deficiencies. The solutions provided in the embodiments of the present application are as follows:

[0005] In a first aspect, an embodiment of the present application provides a V2X communication method, the method comprising:

[0006] Receive configuration information about V2X communication of a second RAT (Radio Access Technique) system sent by a base station of a first RAT system through high-layer signaling, so as to perform corresponding bypass transmission according to the configuration information about the V2X communication of the second RAT system.

[0007] In a second aspect, an embodiment of the present application provides a V2X communication method, the method comprising:

[0008] The base station of the first RAT system sends configuration information about the V2X communication of the second RAT system to the UE through high-layer signaling, so that the UE performs corresponding bypass transmission according to the configuration information about the V2X communication of the second RAT system.

[0009] In a third aspect, an embodiment of the present application provides a user equipment, the user equipment including:

[0010] A UU interface module is configured to receive configuration information about V2X communication of a second RAT system sent by a base station of the first RAT system through high-layer signaling;

[0011] The V2X communication module is configured to perform corresponding bypass transmission according to the configuration information about the V2X communication of the second RAT system.

[0012] In a fourth aspect, an embodiment of the present application provides a base station, which is a base station of a first RAT system, and includes:

[0013] The UU interface module is configured to send configuration information about the V2X communication of the second RAT system to the UE through high-layer signaling, so that the UE performs corresponding bypass transmission according to the configuration information about the V2X communication of the second RAT system.

[0014] In a fifth aspect, an embodiment of the present application provides a communication system, which includes the user equipment provided in the third aspect of the embodiment of the present application, and the base station provided in the fourth aspect of the embodiment of the present application.

[0015] In a sixth aspect, an embodiment of the present application provides an electronic device comprising a memory and a processor; wherein a computer program is stored in the memory; and the processor is used to call the computer program to execute the method provided in the first aspect or the second aspect of the present application.

[0016] In the seventh aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it implements the method provided in the first aspect or the second aspect of the present application.

[0017] The beneficial effects of the technical solution provided in this application will be described in detail later in conjunction with specific embodiments and drawings and will not be introduced here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments of the present application.

[0019] Figure 1 A schematic diagram showing a flow chart of a V2X communication method provided in an embodiment of the present application is shown.

[0020] Figure 2 A flow chart of a V2X communication method provided in an example of the present application is shown;

[0021] Figure 3 A schematic diagram of a V2X communication method provided in another example of the present application is shown;

[0022] Figure 4 A schematic diagram of a flow chart of a V2X communication method provided in another example of the present application is shown;

[0023] Figure 5 A schematic diagram of the structure of a user equipment provided in an embodiment of the present application is shown;

[0024] Figure 6 A schematic structural diagram of an electronic device provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0025] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0026] It will be understood by those skilled in the art that, unless expressly stated otherwise, the singular forms "a", "an", "said" and "the" used herein may also include the plural forms. It should be further understood that the term "comprising" used in the description of the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may be intermediate elements. In addition, "connected" or "coupled" as used herein may include wireless connections or wireless couplings. The term "and / or" used herein includes all or any units and all combinations of one or more associated listed items.

[0027] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art in the art to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with their meanings in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0028] As will be understood by those skilled in the art, the terms "terminal" and "terminal device" as used herein include both devices having a wireless signal receiver, i.e., devices having only a wireless signal receiver without transmitting capability, and devices having receiving and transmitting hardware capable of two-way communication over a two-way communication link. Such devices may include: cellular or other communication devices having a single-line display, a multi-line display, or a cellular or other communication device without a multi-line display; a PCS (Personal Communications Service) which may combine voice, data processing, fax, and / or data communication capabilities; a PDA (Personal Digital Assistant) which may include a radio frequency receiver, a pager, Internet / Intranet access, a web browser, a notepad, a calendar, and / or a GPS (Global Positioning System) receiver; and conventional laptop and / or palmtop computers or other devices having and / or including a radio frequency receiver. As used herein, the terms "terminal" or "terminal device" may be portable, transportable, installed in a vehicle (air, sea, and / or land), or adapted and / or configured to operate locally, and / or in a distributed manner, at any other location on Earth and / or in space. The terms "terminal" or "terminal device" as used herein may also refer to a communication terminal, an Internet terminal, or a music / video playback terminal, such as a PDA, an MID (Mobile Internet Device), and / or a mobile phone with music / video playback capabilities, or a smart TV, a set-top box, or other device.

[0029] In a communication environment where different RAT systems alternate or coexist, V2X communication between these systems is likely to be necessary. For example, with the advent of 5G mobile communications, 5G NR base stations (NR base stations) will likely gradually replace LTE base stations to provide UU interface communication support. However, LTE V2X will likely remain necessary, at least in the short term, and may not be completely replaced by NR V2X. This will likely lead to the emergence of a terminal (i.e., user equipment) that incorporates both an NR UU interface module (NR UU module) and an LTE V2X communication module (LTE V2X module). For such terminals, if centralized LTE V2X technology is still supported, the NR base station can serve as the LTE V2X control center. Specifically, the LTE V2X communication module can be controlled via the NR UU interface. The NR base station sends LTE V2X control signaling to the terminal's NR UU interface module, which then passes the received control signaling to the LTE V2X communication module. The LTE V2X communication module then performs the corresponding bypass transmission.

[0030] In order to support the NR UU control LTE V2X function, the NR UU side standard needs to be modified accordingly, and the main changes are in the physical layer. To address the above-mentioned problems existing in the prior art, the embodiments of the present application provide a detailed design scheme to achieve the purpose of controlling the V2X communication of the second RAT system (such as the LTE system) through the UU interface of the first RAT system (such as the NR system).

[0031] The following specific embodiments are used to describe in detail the technical solution of the present application and how the technical solution of the present application solves the above technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0032] An embodiment of the present application provides a V2X communication method. In a wireless communication system, a UE and a base station communicate via a UU interface (an interface between the UE and the base station). The solution provided by the embodiment of the present application is applicable to a UE having both a UU interface module of a first RAT system and a V2X communication module of a second RAT system, and the UU interface module and the V2X communication module of the second RAT system can exchange information. The UU interface module of the first RAT system controls the V2X communication module of the second RAT system. That is, the bypass transmission of the V2X communication of the second RAT system can be controlled by the base station of the first RAT system through the UU interface module of the first RAT system in the UE, that is, the base station of the first RAT system sends relevant information about the V2X communication of the second RAT system to the UU port of the first system of the UE through its UU port, and the V2X communication module exchanges information with the base station of the first RAT system through the UU interface module.

[0033] In addition, it is clear to those skilled in the art that the UU interface module is a module in the UE used to implement communication between the UE and the base station, and the V2X communication module of the second RAT system is used to implement the V2X communication function in the second RAT system, that is, to perform bypass transmission of the second RAT system, including bypass sending and / or bypass receiving.

[0034] In addition, it can be understood that in addition to the above-mentioned UU interface module and the V2X communication module based on the second RAT system, the UE can also include other functional modules, such as the V2X communication module of the first RAT system, modules for implementing other communication functions of the first RAT system, etc., such as functional modules for implementing uplink transmission and / or downlink transmission. These are also clear to those skilled in the art and will not be elaborated here.

[0035] In an optional solution, the first RAT system may be an NR system, i.e., a 5G communication system, the base station of the system may be referred to as an NR base station, and the second RAT system may be an LTE system.

[0036] For the sake of convenience, in the subsequent description of the embodiments of the present application, the V2X communication module of the second RAT system is referred to as the second V2X communication module, and the V2X communication module of the first RAT system appearing in the subsequent description is referred to as the first V2X communication module.

[0037] Figure 1 A flow chart of a V2X communication method provided in an embodiment of the present application is shown in FIG. The V2X communication method provided in an embodiment of the present application may be specifically executed by a UE. The method may include:

[0038] Receive configuration information about V2X communication of the second RAT system sent by the base station of the first RAT system through higher layer signaling, so as to perform corresponding bypass transmission according to the configuration information about the V2X communication of the second RAT system.

[0039] The high-layer signaling includes terminal equipment radio resource control (UE_specific RRC) signaling and / or a predefined dedicated cell system information block (System Information Block, SIB).

[0040] That is, part or all of the above configuration information sent by the base station can be transmitted via UE_specific RRC signaling, or via the cell system message of the first RAT system. That is, a new SIB can be defined in the first RAT system specifically for V2X communication information indication of the second RAT system, and part of it can be transmitted via UE_specific RRC signaling and part of it via SIB. In addition, in actual applications, when transmitted via SIB, this SIB does not need to be sent periodically, and can be sent only when requested by a UE with corresponding capabilities, so as to save signaling overhead. Of course, when bypass transmission is the reception of bypass data, the base station can send the corresponding configuration information to the UE via SIB according to actual needs.

[0041] It is understandable that bypass transmission may be the sending of bypass data or the receiving of bypass data. For the receiving, the configuration information should at least include the configuration information of the receiving resource pool.

[0042] Based on the method provided in the embodiments of the present application, a base station of a first RAT system controls the V2X communication function of a terminal, i.e., a second RAT system, of a UE. Specifically, the base station can transmit information related to the V2X communication function of the second RAT system (including the aforementioned configuration information and the bypass resource scheduling information described below) to the second V2X communication module of the UE via the UU interface of the first RAT system of the UE, so that the V2X module can perform corresponding bypass transmission based on the received information. Therefore, even when only an NR base station is deployed and no LTE base station is deployed, the second V2X communication module of the UE can operate normally.

[0043] Specifically, as an example, Figure 2The figure shows a schematic diagram of the principle of V2X communication based on the method provided in an embodiment of the present application. In this example, bypass transmission is data transmission. The first RAT system is an NR system, the base station in the system is an NR base station, and the second RAT system is an LTE system. The NR UU module shown in the figure is the UU interface module of the NR system of the UE (the terminal shown in the figure), and the LTE V2X module is the V2X communication module of the LTE system of the UE. The terminal shown in the figure, which has both an NR UU module and an LTE V2X module, is the execution subject in this example. The terminal can receive high-level configuration information about LTE V2X sent by the NR base station through high-level signaling through its NR UU module (corresponding to the information about LTE V2X shown in the figure), and the NR UU module transmits the received high-level configuration information to the LTE V2X module. When the terminal needs to perform V2X communication of the LTE system, specifically when performing LTE V2X bypass transmission in this example, the LTE V2X module can perform corresponding bypass transmission according to the high-level configuration information (LTE V2X transmission is performed according to the information transmitted by the NR UU module shown in the figure). As shown in the figure, the LTE of the terminal Based on this high-level configuration information, the V2X module performs LTE bypass transmission with another user equipment (the LTE V2X terminal shown in the figure). Specifically, in this example, the terminal's LTE V2X module (i.e., the V2X communication module) can perform Mode 4 bypass transmission of the LTE system based on the LTE V2X configuration information transmitted by the NR UU module (i.e., the UU interface module).

[0044] In the bypass transmission of Mode 4 of LTE V2X, the bypass resources used by the UE are independently selected by the UE, that is, distributed (LTE-V-Direct) communication, also known as direct communication, which does not require the support of a base station. However, the high-level configuration information required for Mode 4 transmission of LTE V2X can be obtained through the base station. Of course, it can also be obtained through the pre-configured parameters of the V2X device (such as hard-coded in the chip). In the example provided in the embodiment of the present application, the high-level configuration information required for Mode 4 transmission of LTE V2X is obtained through the NR base station.

[0045] As another example, Figure 3A schematic diagram of the principle of V2X communication based on the method provided in an embodiment of the present application is shown in the figure. The bypass transmission in this example is bypass reception. The terminal in this example can refer to the description of the terminal in the previous example and will not be repeated here. In this example, the NR UU module of the terminal receives the high-level configuration information about LTEV2X sent by the NR base station through high-level signaling, and passes the received high-level configuration information to the LTE V2X module. The LTE V2X module of the terminal receives the LTE V2X transmission according to the high-level configuration information about LTE V2X passed by the NR UU module, that is, receives the data sent by another user equipment. When the bypass transmission is reception, the high-level configuration information about LTE V2X at least includes the configuration information of the receiving resource pool.

[0046] It should be noted that another user equipment in the above example (ie Figure 2 and Figure 3 The LTE V2X terminal shown in the figure is a terminal having an LTE V2X communication module, which can be a terminal of an LTE system, that is, the UU interface module of the user equipment can be a UU interface module of an LTE system, and the V2X communication module of the user equipment can also be a V2X communication module of an LTE system, or it can be a terminal having both a UU interface module of an NR system and a V2X communication module of an LTE system, that is, the other user equipment and the user equipment executing the method provided in the embodiment of the present application can be terminals of the same type or terminals of different types, as long as the other user equipment has an LTE V2X communication module.

[0047] In an optional embodiment of the present application, in step S120, performing corresponding bypass transmission according to the configuration information about the V2X communication of the second RAT system includes:

[0048] receiving DCI (Downlink Control Information) sent by the base station and indicating bypass resource scheduling information for V2X communication of the second RAT system;

[0049] According to the configuration information and bypass resource scheduling information about the V2X communication of the second RAT system, corresponding bypass transmission is performed.

[0050] Specifically, the UU interface module of the first RAT system of the UE receives bypass resource scheduling information about the V2X communication of the second RAT system sent by the base station of the first RAT system through DCI, and the UU interface module transmits the received bypass resource scheduling information to the second V2X communication module of the UE, so that the V2X communication module performs corresponding bypass transmission according to the high-level configuration information and the bypass resource scheduling information when bypass transmission is required. Specifically, the V2X communication module can execute the transmission of bypass data according to the high-level configuration information and the bypass resource scheduling information sent by the base station.

[0051] Still Figure 2 Taking the example shown in as an example, the terminal has both an NR UU module and an LTE V2X module. The information about LTE V2X received by the terminal through its NR UU module may include high-level configuration information and bypass resource scheduling information. Specifically, the NR UU module of the terminal receives the configuration information about the V2X communication of the LTE system sent by the NR base station through high-level signaling, and receives the bypass resource scheduling information about the LTE V2X sent by the NR base station through DCI, and passes the received high-level configuration information and bypass resource scheduling information to the LTE V2X module, so that the LTE V2X module performs the Mode 3 bypass transmission of the LTE system according to the high-level configuration information and the bypass resource scheduling information. In the Mode 3 bypass transmission of LTE V2X, the bypass resources used by the UE are uniformly allocated by the base station, that is, centralized communication, also known as cellular communication, which requires the base station as the control center. In the solution provided in the embodiment of the present application, the NR base station serves as the control center of the LTE V2X communication, that is, the bypass resources used for the Mode 3 bypass transmission of LTEV2X are uniformly allocated by the NR base station.

[0052] Based on the solution provided in the embodiments of the present application, the base station of the first RAT system is used to control the V2X communication function of the second RAT system. That is, the UU interface module of the first RAT system of the UE receives relevant information about the V2X communication of the second RAT system (that is, the above-mentioned high-level configuration information and / or bypass resource scheduling information) sent by the base station. The UU interface module then transmits the relevant information received from the base station to the V2X communication module of the second RAT system of the UE. The V2X communication module can then perform corresponding bypass transmission based on the relevant information.

[0053] In an optional embodiment of the present application, receiving DCI regarding V2X communication of a second RAT system sent by a base station includes:

[0054] Sending a resource scheduling request for V2X communication of the second RAT system to the base station through at least one of RRC signaling, dedicated Scheduling Request (SR) signaling, and dedicated Buffer Status Report (BSR);

[0055] The DCI sent by the receiving base station according to the resource scheduling request is received.

[0056] That is, after receiving a resource scheduling request for V2X communication of the second RAT system sent by the UE, the base station of the first RAT system may send bypass resource scheduling information for V2X communication of the second RAT system to the UE through DCI based on the resource scheduling request.

[0057] Figure 4 FIG2 shows a schematic diagram of a V2X communication method in an example of the present application. In this example, the first RAT system is an NR system, the base station in the system is an NR base station, the second RAT system is an LTE system, and the V2X communication of the second RAT system is LTE V2X. Figure 4 As shown in , the main process of this example can include:

[0058] For Mode 3 transmission of LTE V2X, when data services arrive, the UE's LTE V2X module (the second V2X communication module in this example) should pass the resource request signaling and / or the size of the data block to be transmitted to the UE's NR UU module (i.e., the UU interface module in this example), and then the NR UU module requests LTE V2X resource scheduling from the NR base station, that is, sends a resource scheduling request for LTE V2X to the base station. After receiving the LTE V2X resource scheduling request, the NR base station will send bypass resource scheduling information about LTE V2X to the UE's NR UU module based on the request, and then the NR UU module will pass the received bypass resource scheduling information about LTEV2X to the LTE V2X module. After that, the UE's LTE V2X module can perform corresponding LTE V2X transmission according to the bypass resource scheduling information passed by the NR UU module.

[0059] Optionally, the NR UU module of the UE can request LTE V2X resource scheduling from the NR base station through RRC signaling. Here, the LTE V2X module should pass the resource request information to the NR UU module, and the NR UU module will send the corresponding resource scheduling request to the NR base station.

[0060] Optionally, the NR UU module of the UE can also request LTE V2X resource scheduling from the NR base station through SR signaling, that is, in addition to the SR used to request UL resource scheduling, the NR system can newly define a SR specifically for requesting LTE V2X resource scheduling. The NR base station will specifically configure periodic PUCCH (Physical Uplink Control CHannel, physical uplink control channel) resources for the SR requesting LTE V2X resources, that is, the NR base station configures corresponding PUCCH resources for the SR requesting LTE V2X resources and the SR requesting UL resources. Similarly, here, the LTE V2X module should pass the resource request information to the NR UU module, and the NR UU module will send the corresponding resource scheduling request to the NR base station.

[0061] Optionally, the NR UU module of the UE can also request LTE V2X resource scheduling from the NR base station by reporting the size of the data that needs to be transmitted by LTE V2X. Specifically, the UE can send the BSR of the LTE V2X module to the NR base station. That is, in addition to reporting the BSR of the NR UU module to the NR base station, the UE also needs to report the BSR of the LTE V2X module. The NR system can define a new BSR specifically for the LTE V2X module. Similarly, the LTE V2X module should pass the information of the cached data size to the NR UU module, and the NR UU module will report the size of the data that the LTE V2X module needs to transmit to the NR base station. After receiving the information, the NR base station sends the bypass resource scheduling information about LTE V2X to the NR UU module, and the NR UU module then passes the received bypass resource scheduling information to the LTE V2X module.

[0062] As can be seen from the foregoing description, the above-mentioned scheme of the embodiment of the present application can be executed by a UE that has both a UU interface module of the first RAT system and a V2X communication module that supports the V2X communication function of the second RAT system, and the V2X communication module that supports the V2X communication function of the second RAT system communicates with the base station through the UU interface module of the first RAT system, and the UU interface module of the UE and the second V2X communication module can exchange information.

[0063] Specifically, the UE sends the relevant information of the V2X communication with the second RAT system received from the base station of the second RAT system to the V2X communication module through the UU interface module, and sends the information sent to the base station by the V2X communication module to the base station through the UU interface module. The V2X communication module is used to perform bypass transmission related to the V2X communication with the second RAT system.

[0064] In an optional embodiment of the present application, the V2X communication method may further include:

[0065] Send capability information for informing the base station of the UE's communication capability, where the capability information includes that the UE has the capability to support information interaction between the UU interface module and the V2X communication module, or the capability information includes that the UE has the capability to support information interaction between the UU interface module and the V2X communication module and the UU interface module, and information about the information interaction time between the UU interface module and the V2X communication module.

[0066] Among them, it can be seen from the above description that if the UE receives the indication information of the additional time interval between the reception of the DCI for the V2X communication of the second RAT system and the transmission of the corresponding bypass transmission sent by the base station, the additional time interval should be greater than or equal to the information interaction time reported by the UE between its UU interface module and the V2X communication module.

[0067] Because the method provided in the embodiments of the present application for controlling the V2X communication module of the second RAT system through the UU interface module of the first RAT system is only applicable to UEs with specific capabilities, the system can newly define a type of UE that supports this capability. This capability requires that the UE has both the UU interface module of the first RAT system and the V2X communication module of the second RAT system, and that these two modules have information exchange capabilities. This type of UE can report to the base station of the first RAT system whether it supports this capability. In this way, the base station of the second RAT system can learn which UEs in the system support this capability.

[0068] As an example, when the first RAT system is an NR system and the second RAT system is an LTE system, the UE that supports the above capabilities is the ability to support NR UU control of LTE V2X. The UE has both an NR UU module and an LTE V2X module, and the NR UU module and the LTE V2X module have the ability to exchange information. The UE should report to the base station whether it has the ability to support NR UU control of LTE V2X.

[0069] In an optional embodiment of the present application, the configuration information regarding the V2X communication of the second RAT system includes at least one of the following:

[0070] Indication information regarding a transmission bandwidth for V2X communication of a second RAT system newly introduced in the first RAT system;

[0071] Indication information newly introduced in the first RAT system regarding uplink and downlink subframe configurations of the second RAT system;

[0072] V2X configuration information in an existing second RAT system that is reused in the first RAT system;

[0073] Indication information of a control resource set (CORESET) and / or search space (Search Space) in which a DCI indicating bypass resource scheduling information for V2X communication of a second RAT system is located, which is newly introduced in the first RAT system;

[0074] Indication information of an additional time interval newly introduced in the first RAT system for indicating DCI indicating bypass resource scheduling information regarding V2X communication of the second RAT system and performing corresponding bypass transmission.

[0075] The newly introduced additional time interval is intended to reserve information exchange time between the UU interface module of the first RAT system of the UE and the V2X communication module of the second RAT system. The additional time interval should be greater than or equal to the information exchange time between the UU interface module of the first RAT system of the UE and the V2X communication module of the second RAT system, so as to ensure that the second V2X communication module of the UE performs corresponding bypass transmission according to the received information after obtaining the bypass resource scheduling information related to the V2X communication of the second RAT system transmitted by the UU interface module.

[0076] Optionally, the value of the additional time interval (the additional time interval will be represented by X in the following embodiments) is fixed, and all UEs use the same time interval value, that is, the system only defines one value, and the information interaction time between the UU interface module of the first RAT system and the V2X communication module of the second RAT system of all UEs should be less than or equal to this value.

[0077] Optionally, the value of the additional time interval is fixed, and different UEs can use different time interval values, that is, the system defines multiple values, and different UEs correspond to different values ​​according to their implementation capabilities. Each UE reports the corresponding value to the base station, and the base station always performs V2X resource scheduling for the second RAT system based on the value of the time interval reported by the UE.

[0078] Optionally, the value of the additional time interval is configurable, and through explicit signaling, the base station of the first RAT system can configure different additional time interval values ​​for different UEs. For example, the base station can configure the value of the additional time interval for the UE through UE_specific RRC signaling. The base station can configure the corresponding additional time interval value for the UE based on the capabilities reported by the UE. For example, the UE reports to the base station the relevant capabilities of the information exchange time between the UU interface module of the first RAT system and the V2X communication module of the second RAT system, and the base station configures the value of the additional time interval based on the reported capabilities.

[0079] In an optional embodiment of the present application, for a UE that supports controlling LTE V2X capabilities through NR UU, the UE also needs to report the information interaction time between the NR UU module and the LTE V2X module. The base station configures the value of X based on the value of the reported information interaction time. The information interaction time between the UE's NR UU module and the LTE V2X module cannot be greater than the value of the additional time interval configured by the base station.

[0080] The following takes the case where the first RAT system is an NR system and the second RAT system is an LTE system as an example to further illustrate the above configuration information. In this case, the configuration information is high-level configuration information of LTE V2X.

[0081] LTE V2X high-level configuration information

[0082] Specifically, in this embodiment, the configuration information about LTE V2X sent by the NR base station and received by the NR UU module of the terminal may include at least one of the following:

[0083] 1. LTE V2X transmission bandwidth

[0084] This parameter is only used when LTE V2X and NR UU share the frequency. If LTE V2X and NR UU do not share the frequency, this parameter does not need to be configured additionally. The NR base station can indicate the corresponding transmission bandwidth when configuring the LTE V2X operating frequency.

[0085] In existing LTE systems, when LTE V2X and LTE UU share the same frequency band, the UE uses the uplink system bandwidth indicated in LTE's SIB2 as the LTE V2X transmission bandwidth. In NR systems, when LTE V2X and NR UU share the same frequency band, the uplink system bandwidth indicated in the NR cell system information is likely larger than the maximum system bandwidth of the LTE system (20MHz), and therefore cannot be used as the LTE V2X transmission bandwidth. Furthermore, the uplink carrier bandwidth (Bandwidth Part, BWP) configured for the UE should not be used as the LTE V2X transmission bandwidth. The NR base station needs to additionally indicate the LTE V2X transmission bandwidth, including the starting position and bandwidth size within the NR uplink system bandwidth.

[0086] 2. Uplink and downlink subframe configuration of TDD (Time Division Duplexing) LTE system

[0087] In the existing LTE TDD system, seven uplink and downlink subframe configurations are supported. The actual uplink and downlink subframe configurations used are indicated in the cell system information block SIB1. The UE determines the position of the uplink subframe based on the uplink and downlink subframe configuration information, and then determines the subframe position that can be used for LTE V2X transmission in combination with the resource pool configuration information. In the existing NR system, the position of the uplink and downlink subframes can be flexibly and dynamically configured, and the transmission direction of the flexible subframes is dynamically indicated by the DCI. To maintain the backward compatibility of LTE V2X, the NR base station should additionally indicate one of the seven uplink and downlink subframe configurations used for LTE V2X communication, and the NR base station should ensure that the uplink subframe in the indicated uplink and downlink subframe configuration is always used for uplink transmission.

[0088] 3. LTE V2X configuration information indicated by SIB21 in existing LTE systems

[0089] For example, it includes configuration information of a public receiving resource pool, configuration information of a public sending resource pool, configuration information of a synchronization source, an information list of adjacent frequencies, and the like.

[0090] 4. LTE V2X configuration information indicated by UE-specific RRC signaling in existing LTE systems

[0091] For example, it includes configuration information of a UE-specific receiving resource pool, configuration information of a UE-specific sending resource pool, configuration information of a bypassed RNTI (Radio Network Temporary Identity) value, and the like.

[0092] The above information 3 and information 4 are the configuration information about V2X in the existing second RAT system (the LTE system in this embodiment). In the first RAT system (the NR system in this embodiment), the configuration information about V2X in the existing second RAT system can be reused.

[0093] 5. Configuration information for monitoring DCI indicating bypass resource scheduling for LTE V2X

[0094] Including the configuration information of the CORESET where the DCI is located, and / or the configuration information of the search space for monitoring DCI, etc.

[0095] 6. Configuration information of the time offset (i.e., additional time interval) between the reception of the DCI indicating the bypass resource information of LTE V2X sent by the NR UU module of the UE and the transmission of the corresponding bypass transmission by the LTE V2X module of the UE.

[0096] It should be noted that the time offset configured here is an additional time offset. In actual applications, the actual time offset (total time offset) between the reception of the above-mentioned DCI and the sending of the corresponding bypass transmission mainly consists of two parts. One part is the existing time offset of the LTE system, which is indicated by DCI and mainly responds to the changing uplink subframe position of the TDD system. The other part is the additional time offset introduced for the NR base station to control LTE V2X, which can be indicated by UE-specific RRC signaling, mainly responding to the information interaction between the UE's NR UU module and the LTE V2X module. The value of this additional time offset should not be less than the information interaction time between the UE's NR UU module and the LTE V2X module.

[0097] Among the above configuration information, information 1, information 2, information 5 and information 6 are newly introduced for NR UU control of LTE V2X, and information 3 and information 4 can directly reuse the relevant parameter configuration of the LTE system.

[0098] Optionally, all the above-mentioned configuration information about LTE V2X can be transmitted through UE-specific RRC signaling. For example, after the UE reports to the NR base station that it has the NR UU control LTE V2X capability, that is, the UE has both an NR UU module and an LTE V2X module, and the NR UU module and the LTE V2X module can exchange information, then the NR base station can send all the configuration information about LTE V2X to the NR UU module of the UE through UE-specific RRC signaling.

[0099] Optionally, part of the above-mentioned configuration information about LTE V2X can be transmitted through the NR cell system information, such as the above-mentioned information 1, information 2 and information 3. In the NR system, a new SIB can be defined specifically for LTE V2X information indication. This SIB can be sent only after a UE with corresponding capabilities requests it, without the need for periodic transmission, to save signaling overhead; and another part of the above-mentioned configuration information about LTE V2X can be transmitted through UE-specific RRC signaling, such as the above-mentioned information 4, information 5 and information 6.

[0100] In an optional embodiment of the present application, the UE receives indication information of an additional time interval between the reception time of the DCI regarding the V2X communication of the second RAT system and the transmission time of performing the corresponding bypass transmission sent by the base station. This additional time interval can be configured based on the capability information reported by the UE, that is, the capability information reported by the UE also includes the information interaction time between the UU interface module and the V2X communication module, so that the additional time interval configured by the base station is greater than or equal to the information interaction time between the UU interface module and the V2X communication module reported by the UE.

[0101] In an optional embodiment of the present application, the value of the additional time interval may be determined by the UE in at least one of the following ways:

[0102] The value of the information interaction time between the UU interface module and the V2X communication module reported by the UE to the base station;

[0103] The value of the additional time interval preconfigured via UE-specific RRC signaling;

[0104] The value of the additional time interval dynamically indicated by the DCI for indicating bypass resource scheduling information for V2X communication with the second RAT system.

[0105] In an optional embodiment of the present application, the UE performs corresponding bypass transmission according to the configuration information about the V2X communication of the second RAT system, including: performing corresponding bypass transmission on a first available subframe for the V2X communication of the second RAT system no earlier than the following time:

[0106]

[0107] Among them, T DL Indicates the start time of the downlink subframe in which the received DCI indicating bypass resource scheduling information for V2X communication of the second RAT system is located, N TA Indicates the time offset of the UE's uplink radio frame relative to the downlink radio frame, T S represents the duration of one sample, m represents the time interval between the reception of DCI indicating bypass resource scheduling information for V2X communication in the existing second RAT system and the transmission of the corresponding bypass transmission. For the FDD system, the value of m is 0, and no indication is required. For the TDD system, the value of m is 0, 1, 2, or 3, and is indicated through DCI. X represents the newly introduced additional time interval between the reception of DCI indicating bypass resource scheduling information for V2X communication in the second RAT system and the transmission of the corresponding bypass transmission, in seconds.

[0108] In an optional embodiment of the present application, the above-mentioned DCI for indicating bypass resource scheduling information for V2X communication of the second RAT system includes DCI for indicating dynamic scheduling of bypass resources, and / or DCI for indicating activation or deactivation of semi-persistent scheduling (Semi-Persistent Scheduling, SPS) of bypass transmission.

[0109] That is to say, the above-mentioned DCI sent by the base station of the first system and received by the UU interface module of the first RAT system of the UE (such as the NR UU module of the terminal) can dynamically indicate the bypass resources, and can also activate (activation) / deactivate (deactivation) the SPS of the bypass transmission. The deactivation here can also be called release.

[0110] In an optional embodiment of the present application, the indication information for activating or deactivating the SPS for bypass transmission may include at least one of the following:

[0111] Related indication information for activating or deactivating the SPS for bypass transmission in the existing second RAT system;

[0112] PUCCH (Physical Uplink Control Channel) related indication information for feeding back ACK (Acknowledgement) of DCI indicating activation or deactivation of SPS for bypass transmission;

[0113] Instruction information for instructing the second RAT system to perform bypass transmission on an uplink carrier or a supplementary uplink carrier;

[0114] Indication information for indicating an additional time interval between receiving DCI regarding bypass resource scheduling information for V2X communication of a second RAT system and performing corresponding bypass transmission;

[0115] The total time interval between receiving DCI indicating bypass resource scheduling information for V2X communication with a second RAT system and transmitting the corresponding bypass transmission, where the total time interval includes the additional time interval and the time interval between receiving DCI indicating bypass resource scheduling information for V2X communication with a second RAT system and transmitting the corresponding bypass transmission.

[0116] The following still takes the first RAT system as the NR system and the second RAT system as the LTE system as an example to further explain the above-mentioned indication information. These indication information are the contents of the DCI about LTE V2X sent by the NR base station.

[0117] Specifically, when the DCI sent by the NR base station is used to activate / deactivate the SPS of bypass transmission, it should include at least one of the following indication fields:

[0118] 1. Carrier indicator (usually 3 bits) indicates the frequency used for LTE V2X bypass transmission. NR base stations can configure up to 8 LTE V2X frequencies through higher-layer signaling.

[0119] 2. The minimum index of the bypass initial transmission sub-channel allocation (index) is generally bits, used to indicate the minimum index of the subchannel allocated for the initial transmission of LTE V2X. The subchannel is the minimum granularity of PSSCH (Physical Sidelink Share Channel) allocation, and a UE can be allocated one or more consecutive bypass subchannels. Indicates the number of allocated subchannels.

[0120] 3. Indication of the frequency domain resource location of bypass initial transmission and retransmission, generally bits are used to indicate the frequency domain resource locations of the initial transmission and retransmission of LTE V2X. When there is no retransmission, only the frequency domain resource location of the initial transmission of LTE V2X is indicated.

[0121] 4. Indication of the time interval between bypass initial transmission and retransmission, generally 4 bits, used to indicate the time interval between the initial transmission and retransmission of LTE V2X, in subframes (i.e., 1ms). When the time interval indication value is zero, it means there is no LTE V2X retransmission.

[0122] 5. Sidelink (SL) index indication, generally 2 bits, used to indicate the time offset between the reception of DCI and the transmission of bypass transmission. This time offset is the time interval between the reception of DCI indicating bypass resource scheduling information for V2X communication and the transmission of the corresponding bypass transmission in the above-mentioned existing second RAT system.

[0123] As shown in the following table, the SL index is a two-bit field with values ​​of "00," "01," "10," and "11," respectively. The corresponding time offset (m) value is between 0 and 3. This field is only for TDD systems. For FDD systems, this field does not exist, and the value of m is 0.

[0124] Indicative value of SL index The value of m '00' 0 '01' 1 '10' 2 '11' 3

[0125] 6. Indication of the SL SPS configuration index, typically 3 bits, indicating the index of the SPS configuration for which bypass transmission for LTE V2X is activated. The NR base station can configure up to 8 SPS transmissions for LTE V2X, and the UE determines the corresponding transmission period based on the SL SPS configuration index.

[0126] 7. Activation / deactivation indication, typically 1 bit, indicates the activation or deactivation of LTE V2X SPS transmission. When the DCI indicates activation, the UE may start periodic transmission on the bypass resources specified by indication fields 1 to 5, with the period value specified by indication field 6. When the DCI indicates deactivation, the UE shall stop transmitting on the bypass resources specified by indication fields 1 to 5.

[0127] 8. Uplink carrier / supplementary uplink carrier indication, generally 1 bit, used to indicate whether LTE V2X resource scheduling uses uplink carrier resources or supplementary uplink (SUL) carrier resources.

[0128] 9. PUCCH resource indication, generally 3 bits, used to indicate the PUCCH resource for feedback of ACK for SL SPS activation or release.

[0129] 10. Indication of the time interval between PDCCH receiving HARQ feedback, 3 bits, used to indicate the time interval between the transmission time of the PUCCH that feeds back the ACK for SL SPS activation or release and the reception time of the PDCCH that indicates SL SPS activation or release.

[0130] 11. Transmission Power Control (TPC) indication for scheduled PUCCH, used to indicate adjustment of the transmit power of the scheduled PUCCH. Here, the scheduled PUCCH refers to the PUCCH used to feedback ACK for SL SPS activation or release.

[0131] 12. Indicates the time offset between the reception of the DCI indicating the bypass resource information of LTE V2X sent by the NR UU module of the UE and the transmission of the corresponding bypass transmission by the LTE V2X of the UE.

[0132] From the previous description, it can be seen that the actual time offset between the reception of the above-mentioned DCI and the sending of the bypass transmission consists of two parts. One part is the existing time offset of the LTE system, which can be indicated by the above-mentioned indication field 5, mainly to cope with the changing uplink subframe position of the TDD system; the other part is the additional time offset introduced for the NR base station to control LTE V2X, which mainly copes with the information interaction between the NR UU module and the LTE V2X module of the UE.

[0133] As an optional solution, the indication field 12 here may indicate the additional time offset mentioned above, that is, the additional time interval mentioned above. The value of this additional time offset should not be less than the information exchange time between the UE's NR UU module and the LTE V2X module. When the NR base station dynamically indicates the additional time offset between the reception of the LTE V2X bypass resource information DCI and the sending of the corresponding bypass transmission through DCI, the benefit is that more flexible bypass resource scheduling can be supported.

[0134] In one example, the value X (the value of the additional time interval) indicated by the indication field 12 is an integer, and the unit of X is microseconds. Correspondingly, the LTE V2X module of the UE should be no earlier than The corresponding bypass transmission is performed on the first available LTE V2X subframe.

[0135] In another example, the value X indicated by the indication field 12 is an integer, and the unit of X is milliseconds. Correspondingly, the LTE V2X module of the UE should be The corresponding bypass transmission UE is performed on the first available LTE V2X subframe. As can be seen from the previous description, m is the value indicated by the above-mentioned indicator field 5, which is one of 0 to 3. If it is an FDD system, the above-mentioned indicator field 5 does not exist and the value of m is 0.

[0136] As another optional solution, the time offset indicated by the indication field 12 here can be the total time interval, that is, the time offset indicated by the indication field 12 is the existing time offset of the LTE system and the additional time offset introduced by the NR base station controlling the LTE V2X. In this optional solution, the indication field 5 above may not be included. Correspondingly, the LTE V2X module of the UE is not earlier than The corresponding bypass transmission is performed on the first available LTE V2X subframe, where X 总 The total time interval is expressed in milliseconds. When the NR base station dynamically indicates the total time offset between the reception of the DCI for LTE V2X bypass resource information and the sending of the corresponding bypass transmission through DCI, the benefit is that more flexible bypass resource scheduling can be supported.

[0137] For the above-mentioned indication fields, the information indicated by indication fields 1 to 7 is the relevant indication information of the SPS for activation or deactivation of bypass transmission in the existing LTE system. Indication fields 1 to 7 can fully reuse the existing indication field of DCI format 5A of the LTE system, indication field 8 can reuse the existing indication field of the DCI for scheduling PUSCH of the NR system, indication fields 9 to 11 can reuse the existing indication field of the DCI for scheduling PDSCH of the NR system, and indication field 12 is a newly introduced indication field. When the DCI sent by the NR base station is used to activate or release the SL SPS, the UE should feedback ACK to the NR base station to confirm that the activation or release of the SL SPS has taken effect. Optionally, the UE can only ACK feedback for the release of the SL SPS, and does not need to ACK feedback for the activation of the SL SPS, because the loss of the SLSPS activation signaling has less impact on the system than the loss of the SL SPS release signaling. Optionally, the UE can ACK feedback for both the release and activation of the SLSPS.

[0138] When the DCI sent by the NR base station is used to dynamically indicate the bypass resources of LTE V2X, it is not necessary to include 6 to 7 and 9 to 11 of the above-mentioned indication fields.

[0139] In an optional embodiment of the present application, at least one of the DCI for indicating bypass resource scheduling information for V2X communication of the second RAT system, the DCI for indicating bypass resource scheduling information for V2X communication of the first RAT system in the same cell, and the DCI for scheduling PUSCH in the first RAT system of the same cell satisfies at least one of the following:

[0140] The DCI for indicating bypass resource scheduling information for V2X communication related to the second RAT system and the DCI for indicating bypass resource scheduling information for V2X communication related to the first RAT system may both be scrambled with the same RNTI (cyclic redundancy check) or scrambled with different RNTIs. If the two scrambled CRCs are scrambled with the same RNTI, they may both carry identification information for distinguishing between them.

[0141] The DCI used to indicate dynamic scheduling of bypass resources for V2X communication with the second RAT system and the DCI used to indicate activation or deactivation of the SPS for bypass transmission use the same RNTI to scramble the CRC or use different RNTIs to scramble the CRC. If the DCI used to indicate dynamic scheduling of bypass resources and the DCI used to indicate activation or deactivation of the SPS for bypass transmission use the same RNTI to scramble the CRC, both carry identification information for distinguishing the two.

[0142] When at least one of the following conditions occurs, if the payload size of the DCI used to indicate the bypass resource scheduling information for V2X communication related to the second RAT system is not equal to the payload size of DCI format 0_0 and / or DCI format 0_1 ​​used for scheduling PUSCH in the same cell, the DCI used to indicate the bypass resource scheduling information for V2X communication related to the second RAT system is bit-padded until the padded payload size is equal to the payload size of DCI format 0_0 and / or DCI format 0_1 ​​used for scheduling PUSCH in the same cell:

[0143] The DCI for indicating bypass resource scheduling information for V2X communication of the second RAT system is configured in the same search space as the DCI format 0_0 and / or DCI format 0_1 ​​for scheduling the PUSCH;

[0144] The DCI for indicating bypass resource scheduling information for V2X communication of the second RAT system is configured in the same search space as the DCI format 0_0 and / or DCI format 0_1 ​​used for scheduling the PUSCH, and the total number of DCIs of different payload sizes to be monitored by the UE in the same search space is greater than a first preset value;

[0145] The DCI for indicating bypass resource scheduling information for V2X communication of the second RAT system is not configured in the same search space as the DCI format 0_0 and / or DCI format 0_1 ​​used for scheduling the PUSCH, and the total number of DCIs of different payload sizes that the UE needs to monitor across all search spaces of the cell is greater than a second set value;

[0146] When at least one of the following conditions occurs, if the payload size of the DCI used to indicate the bypass resource scheduling information for V2X communication with the second RAT system is not equal to the payload size of the DCI used to indicate the bypass resource scheduling information for V2X communication with the first RAT system in the same cell, then the DCI used to indicate the bypass resource scheduling information for V2X communication with the second RAT system and the DCI used to indicate the bypass resource scheduling information for V2X communication with the second RAT system in the same cell with the smaller payload size are bit-padded until the padded payload size becomes equal to the payload size of the other DCI:

[0147] The DCI for indicating the bypass resource scheduling information regarding the V2X communication of the second RAT system and the DCI for indicating the bypass resource scheduling information regarding the V2X communication of the first RAT system are configured in the same search space;

[0148] The DCI for indicating bypass resource scheduling information for V2X communication of the second RAT system and the DCI for indicating bypass resource scheduling information for V2X communication of the first RAT system are configured in the same search space, and the total number of DCIs of different payload sizes to be monitored by the UE for the same search space is greater than a third set value;

[0149] The DCI for indicating bypass resource scheduling information for V2X communication of the second RAT system and the DCI for indicating bypass resource scheduling information for V2X communication of the first RAT system are not configured in the same search space, and the total number of DCIs of different payload sizes to be monitored by the UE in all search spaces of the cell is greater than a fourth set value;

[0150] The DCI for indicating the bypass resource scheduling information for the V2X communication of the second RAT system and the DCI format 0_0 and / or DCI format 0_1 ​​for scheduling the PUSCH are not configured in the same search space, and the DCI for indicating the bypass resource scheduling information for the V2X communication of the second RAT system and the DCI for indicating the bypass resource scheduling information for the V2X communication of the first RAT system are configured in the same search space;

[0151] The DCI for indicating bypass resource scheduling information for V2X communication related to the second RAT system and the DCI format 0_0 and / or DCI format 0_1 ​​for scheduling the PUSCH are not configured in the same search space, the DCI for indicating bypass resource scheduling information for V2X communication related to the second RAT system and the DCI for indicating bypass resource scheduling information for V2X communication related to the first RAT system are configured in the same search space, and the total number of DCIs of different payload sizes to be monitored by the UE for the same search space is greater than a fifth set value;

[0152] The DCI used to indicate the bypass resource scheduling information for V2X communication regarding the second RAT system and the DCI format 0_0 and / or DCI format 0_1 ​​used to schedule PUSCH are not configured in the same search space, the DCI used to indicate the bypass resource scheduling information for V2X communication regarding the second RAT system and the DCI used to indicate the bypass resource scheduling information for V2X communication regarding the first RAT system are configured in the same search space, and the total number of DCIs of different payload sizes that the UE needs to monitor in all search spaces of the cell is greater than the sixth set value.

[0153] Based on this optional solution, the payloads of different DCIs can be aligned to reduce the number of DCI blind detections of the UE.

[0154] The following still takes the first RAT system as the NR system and the second RAT system as the LTE system as an example to further illustrate this optional solution.

[0155] DCI payload alignment

[0156] In this embodiment, the NR base station controls the bypass resource scheduling of Mode 3 of LTE V2X through DCI. Of course, it can also control the bypass resource scheduling of Mode 1 of NR V2X (V2X communication of the first RAT system in this embodiment) through DCI. Mode 1 of NR V2X is similar to Mode 3 of LTE V2X. Both allocate bypass resources through the base station, that is, centralized communication.

[0157] Optionally, the DCI for controlling the bypass resource scheduling of Mode 1 of NR V2X and the DCI for controlling the bypass resource scheduling of Mode 3 of LTE V2X use different RNTIs to scramble the CRC, for example, the former is scrambled by the newly defined SL-V-RNTI, and the latter is scrambled by the newly defined LTE-SL-V-RNTI.

[0158] Optionally, the DCI for controlling the bypass resource scheduling of Mode 1 of NR V2X and the DCI for controlling the bypass resource scheduling of Mode 3 of LTE V2X use the same RNTI scrambling, for example, both use the newly defined SL-V-RNTI to scramble the CRC, and the two types of DCI are distinguished by a 1-bit dedicated indication field within the DCI.

[0159] Optionally, the above-mentioned DCI indicating LTE V2X sent by the NR base station can be used only to indicate SPS activation / deactivation of LTE V2X, and is not used to indicate dynamic scheduling of bypass resources.

[0160] Optionally, the above-mentioned DCI indicating LTE V2X sent by the NR base station, in addition to being used to indicate the SPS activation / deactivation of LTE V2X, can also be used to indicate the dynamic scheduling of bypass resources. The DCI indicating the SPS activation / deactivation of LTE V2X and the DCI dynamically indicating the scheduling of bypass resources can be monitored on the same search space by default, and the payload sizes should be aligned. In one optional method, the two DCIs can be distinguished by a 1-bit dedicated indication field. In another optional method, the two DCIs can be distinguished by using different RNTIs. For example, the DCI indicating the SPS activation / deactivation of LTE V2X uses a newly defined LTE-SL-V-RNTI to scramble the CRC, while the DCI indicating the dynamic scheduling of bypass resources uses another newly defined LTE-SL-SPS-V-RNTI to scramble the CRC.

[0161] Optionally, when the above-mentioned DCI indicating LTE V2X sent by the NR base station, such as the DCI indicating dynamic bypass resource scheduling of LTE V2X, or the DCI indicating SPS activation / deactivation of LTE V2X, is configured in the same search space as the DCI format 0_0 and / or DCI format 0_1 ​​used to schedule PUSCH in the same cell, if the information bit of the DCI indicating LTE V2X is smaller than the payload size of DCI format 0_0 and / or DCI format 0_1, then bit 0 should be added to the DCI indicating LTE V2X until it is the same as the payload size of DCI format 0_0 and / or DCI format 0_1, that is, the payload size of the DCI indicating LTE V2X should be aligned with the payload size of DCI format 0_0 and / or DCI format 0_1 ​​for scheduling PUSCH, so as not to increase the number of DCI blind detections of the UE.

[0162] Optionally, when the above-mentioned DCI indicating LTE V2X (e.g., DCI indicating dynamic resource scheduling of LTE V2X, or DCI indicating SPS activation / deactivation of LTE V2X) sent by the NR base station is configured in the same search space (Search Space) as DCI format 0_0 and / or DCI format 0_1 ​​used for scheduling PUSCH in the same cell, if the total number of DCIs with different payload sizes monitored by the UE for this search space is greater than 4 (the first set value in this embodiment), then bit 0 should be added to the DCI indicating LTE V2X until the payload size is the same as that of DCI format 0_0 and / or DCI format 0_1; if the total number of DCIs with different payload sizes monitored by the UE for this cell is not greater than 4, then there is no need to pad the DCI indicating LTE V2X with bits. Of course, in actual applications, when the total number is not greater than 4, the DCI indicating LTE V2X may also be padded with bits based on actual needs.

[0163] Optionally, when the aforementioned DCI indicating LTE V2X (e.g., DCI indicating dynamic resource scheduling for LTE V2X, or DCI indicating SPS activation / deactivation for LTE V2X) sent by the NR base station is not configured in the same search space as DCI format 0_0 and / or DCI format 0_1 ​​for scheduling PUSCH in the same cell, if the total number of DCIs with different payload sizes that the UE monitors for all search spaces of the cell is greater than 4 (the second set value in this example), then bit 0 should be added to the DCI indicating LTE V2X until the payload size is the same as that of DCI format 0_0 and / or DCI format 0_1. If the total number of DCIs with different payload sizes that the UE monitors for all search spaces of the cell is not greater than 4, then there is no need to pad the DCI indicating LTE V2X with bits. Of course, in actual applications, when the total number is not greater than 4, the DCI indicating LTE V2X may be padded with bits based on actual needs.

[0164] Optionally, when the above-mentioned DCI indicating LTE V2X sent by the NR base station is not configured in the same search space as the DCI format 0_0 or DCI format 0_1 ​​for scheduling PUSCH of the same cell, but is configured in the same search space as the DCI indicating NR V2X (for example, the DCI indicating dynamic resource scheduling of NR V2X, or the DCI indicating SPS activation / deactivation of NR V2X), if the information bit of the DCI indicating LTE V2X is smaller than the payload size of the DCI indicating NR V2X, then bit 0 should be added to the DCI indicating LTE V2X until the payload size is the same as that of the DCI indicating NR V2X; if the information bit of the DCI indicating NR V2X is smaller than the payload size of the DCI indicating LTE V2X, then bit 0 should be added to the DCI indicating NR V2X until the payload size is the same as that of the DCI indicating LTE V2X, that is, the payload size of the DCI indicating LTE V2X should be the same as that of the DCI indicating NR V2X. The payload size of V2X DCI is aligned to avoid increasing the number of DCI blind detections of the UE.

[0165] Optionally, when the above-mentioned DCI indicating LTE V2X sent by the NR base station is not configured in the same search space as the DCI format 0_0 or DCI format 0_1 ​​for scheduling PUSCH of the same cell, but is configured in the same search space as the DCI indicating NR V2X (for example, the DCI indicating dynamic resource scheduling of NR V2X, or the DCI indicating SPS activation / deactivation of NR V2X), if the information bit of the DCI indicating LTE V2X is smaller than the payload size of the DCI indicating NR V2X, and the total number of DCIs with different payload sizes monitored by the UE for this search space (the DCI indicating LTE V2X and the DCI indicating NR V2X are configured in the same search space) is greater than 4 (the fifth setting value in this embodiment), then bit 0 should be added to the DCI indicating LTE V2X until it is the same as the payload size of the DCI indicating NR V2X; or, if the information bit of the DCI indicating NR V2X is smaller than the payload size of the DCI indicating LTE V2X, ...); If the payload size of the DCI indicating V2X is small and the total number of DCIs with different payload sizes that the UE monitors for all search spaces of this cell is greater than 4 (the sixth set value in this embodiment), then bit 0 should be added to the DCI indicating NR V2X until it is the same as the payload size of the DCI indicating LTE V2X; if the total number of DCIs with different payload sizes that the UE monitors for this search space is not greater than 4, then there is no need to fill bits for the DCI indicating LTE V2X or the DCI indicating NR V2X. Of course, in actual applications, according to actual needs, if the above total number is not greater than 4, bits can also be filled for the DCI indicating LTE V2X or the DCI indicating NR V2X.

[0166] Optionally, when the above-mentioned DCI indicating LTE V2X sent by the NR base station is not configured in the same search space as the DCI format 0_0 or DCI format 0_1 ​​used for scheduling PUSCH of the same cell, and is not configured in the same search space as the DCI indicating NR V2X, if the information bit of the DCI indicating dynamic resource scheduling of LTE V2X is smaller than the payload size of the DCI indicating SPS activation / deactivation of LTE V2X, then bit 0 should be added to the DCI indicating dynamic resource scheduling of LTE V2X until it is the same as the payload size of the DCI indicating SPS activation / deactivation of LTE V2X, that is, the payload size of the DCI indicating dynamic resource scheduling of LTE V2X should be aligned with the payload size of the DCI indicating SPS activation / deactivation of LTE V2X, so as not to increase the number of DCI blind detection times of the UE.

[0167] Optionally, when the above-mentioned DCI indicating LTE V2X sent by the NR base station is not configured in the same search space as the DCI format 0_0 or DCI format 0_1 ​​used for scheduling PUSCH of the same cell, and is not configured in the same search space as the DCI indicating NR V2X, if the information bit of the DCI used to indicate dynamic resource scheduling of LTE V2X is smaller than the payload size of the DCI indicating SPS activation / deactivation of LTE V2X, if the total number of DCIs with different payload sizes monitored by the UE for this cell (all search spaces of this cell) is greater than 4, then bit 0 should be added to the DCI indicating dynamic resource scheduling of LTE V2X until the payload size is the same as the payload size of the DCI indicating SPS activation / deactivation of LTE V2X; if the total number of DCIs with different payload sizes monitored by the UE for this cell is not greater than 4, then there is no need to fill bits in the DCI indicating dynamic resource scheduling of LTE V2X. Of course, based on actual needs, even if the total number is not greater than 4, bits can be filled in the DCI indicating dynamic resource scheduling of LTE V2X.

[0168] In an optional embodiment of the present application, the CORESET and / or search space where the DCI for indicating bypass resource scheduling information for V2X communication of the second RAT system is located may satisfy at least one of the following:

[0169] The DCI for indicating bypass resource scheduling information for V2X communication related to the second RAT system and the DCI for indicating bypass resource scheduling information for V2X communication related to the first RAT system in the same cell share the same CORESET;

[0170] DCI for indicating bypass resource scheduling information for V2X communication of the second RAT system, and / or DCI for indicating bypass resource scheduling information for V2X communication of the first RAT system in the same cell, configured with a dedicated CORESET;

[0171] The DCI for indicating the bypass resource scheduling information for the V2X communication of the second RAT system and the DCI for indicating the bypass resource scheduling information for the V2X communication of the first RAT system in the same cell share the same search space;

[0172] The DCI for indicating bypass resource scheduling information regarding V2X communication of the second RAT system and / or the DCI of the same cell for indicating bypass resource scheduling information regarding V2X communication of the first RAT system are configured with a dedicated search space.

[0173] The following is further explained using the first RAT system as the NR system and the second system as the LTE system.

[0174] In actual applications, before monitoring the DCI sent by the NR base station to indicate the bypass resource scheduling information about LTE V2X communication, the UE needs to obtain the necessary information for monitoring the DCI, such as the CORESET where the DCI is located and the configuration information of the search space, so as to monitor the DCI based on this information.

[0175] Optionally, the NR base station does not need to specifically configure a CORESET for the DCI indicating the bypass resource scheduling information of LTE V2X, that is, the DCI indicating the bypass resource scheduling of LTE V2X and the DCI indicating the resource scheduling information of NR UU can share the same CORESET.

[0176] Optionally, the NR base station configures a special CORESET for the DCI indicating the bypass resource scheduling information of LTE V2X and / or the DCI indicating the bypass resource scheduling information of NR V2X, that is, the DCI indicating the bypass resource scheduling information of LTE V2X and / or the DCI indicating the bypass resource scheduling information of NR V2X and the DCI indicating the resource scheduling information of NR UU do not share the same CORESET.

[0177] Optionally, the NR base station does not need to specifically configure a search space for the DCI indicating the bypass resource scheduling information of LTE V2X, that is, the DCI indicating the bypass resource scheduling of LTE V2X and the DCI indicating the resource scheduling information of NR UU share the same search space.

[0178] Optionally, the NR base station configures a special search space for the DCI indicating the bypass resource scheduling information of LTE V2X and / or the DCI indicating the bypass resource scheduling information of NR V2X, that is, the DCI indicating the bypass resource scheduling information of LTE V2X and / or the DCI indicating the bypass resource scheduling information of NR V2X and the DCI indicating the resource scheduling information of NR UU do not share the same search space.

[0179] In an optional embodiment of the present application, if the UL (uplink) transmission of the first RAT system, the bypass transmission of the V2X communication of the first RAT system, and the bypass transmission of the V2X communication of the second RAT system overlap in time, the method satisfies at least one of the following conditions:

[0180] First, overlapping of bypass transmission of V2X communication of the first RAT system and bypass transmission of V2X communication of the second RAT system is processed. Then, based on the processing result, the bypass transmission of V2X communication of the first RAT system or the bypass transmission of V2X communication of the second RAT system is processed to overlap with UL transmission. Finally, the bypass transmission and / or UL transmission is performed based on the result of the further processing.

[0181] First, processing overlap between UL transmission and bypass transmission of V2X communication of the first RAT system, then processing overlap between UL transmission or bypass transmission of V2X communication of the first RAT system and bypass transmission of V2X communication of the second RAT system based on the processing result, and finally performing bypass transmission and / or UL transmission based on the result of the further processing;

[0182] If the three include two sends and one receive, first process the overlap of the two transmissions corresponding to the two sends, then process the overlap of one or the other of the two transmissions corresponding to the sends with the transmission corresponding to the receive, and then perform the final receive or send based on the result of the second process.

[0183] If the three include two receptions and one transmission, first process the overlap of the two transmissions corresponding to the two receptions, then process the overlap of one or the other of the two transmissions corresponding to the receptions with the transmission corresponding to the transmission based on the result of the determination, and perform the final reception or transmission based on the result of the reprocessing;

[0184] If all three are sent, the transmission modes of the three are determined according to a first indication value indicated by the "Priority" field in the bypass control information SCI for bypass transmission of the V2X communication of the first RAT system and a second indication value indicated by the "Priority" field in the SCI for bypass transmission of the V2X communication of the second RAT system. The transmission modes of the three are determined according to the first indication value and the second indication value, including any one of the following:

[0185] If one of the first indicator value and the second indicator value is smaller than a preconfigured threshold value, and the first indicator value is not equal to the second indicator value, performing bypass transmission with the smaller indicator value of the first indicator value and the second indicator value, and discarding bypass transmission and UL transmission with the larger indicator value;

[0186] If one of the first indication value and the second indication value is less than a preconfigured threshold value, and the first indication value is equal to the second indication value, the UE independently performs one of the bypass transmission of the V2X communication of the first RAT system or the bypass transmission of the V2X communication of the second RAT system, and discards the other and UL transmission, or, according to a preconfigured or predefined rule, always performs the bypass transmission of the V2X communication of the first RAT system or the bypass transmission of the V2X communication of the second RAT system, and discards the other and UL transmission;

[0187] If neither the first indication value nor the second indication value has an indication value less than a preconfigured threshold value, perform UL transmission, and discard bypass transmission of the V2X communication of the first RAT system and bypass transmission of the V2X communication of the second RAT system;

[0188] If one of the first indicator value and the second indicator value is less than a preconfigured threshold value, and the first indicator value is not equal to the second indicator value, if the larger indicator value is greater than or equal to the preconfigured threshold value, the transmit power of the bypass transmission with the larger indicator value is adjusted first, and the transmit power of the UL transmission may be further adjusted; if the larger indicator value is less than the preconfigured threshold value, the transmit power of the UL transmission is adjusted first, and the transmit power of the bypass transmission with the larger indicator value may be further adjusted, and the transmission of the three is controlled according to the adjustment result, wherein the total transmit power of the overlapping area after adjustment is not greater than the maximum transmit power of the UE;

[0189] If one of the first indicator value and the second indicator value is less than a preconfigured threshold, and the first indicator value is equal to the second indicator value, the transmit power of the UL transmission is adjusted preferentially, and one of the transmit powers of the bypass transmission of the V2X communication of the first RAT system or the bypass transmission of the V2X communication of the second RAT system may be further adjusted independently. Alternatively, one of the transmit powers of the bypass transmission of the V2X communication of the first RAT system or the bypass transmission of the V2X communication of the second RAT system may be always adjusted according to a preconfigured or predefined rule, and the transmission of the three is controlled according to the adjustment result, wherein the total transmit power of the overlapping area after adjustment is not greater than the maximum transmit power of the UE;

[0190] If neither the first indicator value nor the second indicator value is less than the preconfigured threshold value, and the first indicator value is not equal to the second indicator value, the transmit power of the bypass transmission with the larger indicator value is preferentially adjusted, and the transmit power of the bypass transmission with the smaller indicator value may be further adjusted. The transmission of the three is controlled according to the adjustment result, wherein the total transmit power of the overlapping area after adjustment is not greater than the maximum transmit power of the UE;

[0191] If neither the first indicator value nor the second indicator value has an indicator value less than the preconfigured threshold value, and the first indicator value is equal to the second indicator value, the UE independently adjusts the transmit power of the bypass transmission of the V2X communication of the first RAT system and / or the transmit power of the bypass transmission of the V2X communication of the second RAT system, or always adjusts the transmit power of the bypass transmission of the V2X communication of the first RAT system and / or the transmit power of the bypass transmission of the V2X communication of the second RAT system according to a preconfigured or predefined rule, and controls the transmission of the three according to the adjustment result, wherein the total transmit power in the overlapping area after adjustment is not greater than the maximum transmit power of the UE;

[0192] In which, the bypass transmission of the V2X communication of the first RAT system and the bypass transmission of the V2X communication of the second RAT system correspond to the same preconfigured threshold value or correspond to different preconfigured threshold values. If they correspond to different preconfigured threshold values, whether the first indication value is less than the preconfigured threshold value means whether the first indication value is less than the preconfigured threshold value corresponding to the bypass transmission of the V2X communication of the first RAT system, and whether the second indication value is less than the preconfigured threshold value means whether the second indication value is less than the preconfigured threshold value corresponding to the bypass transmission of the V2X communication of the second RAT system.

[0193] In an optional embodiment of the present application, if the UL transmission of the first RAT system and the bypass transmission overlap in time, the bypass transmission is the bypass transmission of the V2X communication of the first RAT system or the bypass transmission of the V2X communication of the second RAT system, and the UL transmission and the bypass transmission meet any of the following conditions:

[0194] If the bypass transmission is reception of the bypass channel, then the UL transmission is performed and the bypass transmission is discarded;

[0195] If the bypass transmission is sent via a bypass channel, obtain a third indication value indicated by the "Priority" field of the SCI (SidelinkControlInformation) of the bypass transmission, and compare the third indication value with a preconfigured threshold value. If the third indication value is less than the preconfigured first threshold value, discard the UL transmission and perform the bypass transmission. If the third indication value is not less than the preconfigured first threshold value, discard the bypass transmission and perform the UL transmission.

[0196] If the bypass transmission is transmission of a bypass channel, obtain a fourth indication value indicated by the "Priority" field of the SCI of the bypass transmission, and compare the fourth indication value with a preconfigured threshold value; if the fourth indication value is less than the preconfigured second threshold value, adjust the transmit power of the UL transmission; if the fourth indication value is not less than the preconfigured second threshold value, adjust the transmit power of the bypass transmission, wherein the adjusted total transmit power of the UL transmission and the bypass transmission in the overlapping area is not greater than the maximum transmit power of the UE;

[0197] If the bypass transmission is a transmission of a bypass channel, and the UE does not obtain the indication value of the bypass transmission indicated by the "Priority" field of the SCI before the transmission preparation time for performing the bypass transmission, the UE shall automatically discard the UL transmission or the bypass transmission, or automatically adjust the transmit power of the UL transmission or the transmit power of the bypass transmission, wherein the adjusted total transmit power of the UL transmission and the bypass transmission in the overlapping area is not greater than the maximum transmit power of the UE;

[0198] If the bypass transmission is the transmission of a bypass channel, and the UE does not obtain the indication value indicated by the "Priority" field of the SCI for the bypass transmission before the transmission preparation time for executing the bypass transmission, the UE compares the default value of the preconfigured indication value with the preconfigured threshold value, and based on the comparison result, discards the UL transmission or the bypass transmission, or adjusts the transmit power of the UL transmission or the transmit power of the bypass transmission, wherein the adjusted total transmit power of the UL transmission and the bypass transmission in the overlapping area is not greater than the maximum transmit power of the UE.

[0199] In an optional embodiment of the present application, if bypass transmission of V2X communication of a first RAT system and bypass transmission of V2X communication of a second RAT system overlap in time, the bypass transmission of V2X communication of the first RAT system and the bypass transmission of V2X communication of the second RAT system satisfy any of the following conditions:

[0200] If both bypass transmissions are transmitted via the bypass channel, the UE, before executing the transmission preparation time for the bypass transmission, discards the bypass transmission with the larger indication value based on the fifth indication value indicated by the "Priority" field of the SCI for the bypass transmission of the V2X communication of the first RAT system and the sixth indication value indicated by the "Priority" field of the SCI for the bypass transmission of the V2X communication of the second RAT system, or adjusts the transmit power of the bypass transmission with the larger priority indication value to ensure that the total transmit power of the bypass transmission of the V2X communication of the first RAT system and the bypass transmission of the V2X communication of the second RAT system in the overlapping area after adjustment is not greater than the maximum transmit power of the UE; if If the fifth indicator value is equal to the sixth indicator value, or if the fifth indicator value and / or the sixth indicator value cannot be obtained before the transmission preparation time for performing the bypass transmission, the UE independently discards the bypass transmission of the V2X communication of the first RAT system or the bypass transmission of the V2X communication of the second RAT system, or the UE independently adjusts the transmit power of the bypass transmission of the V2X communication of the first RAT system or the bypass transmission of the V2X communication of the second RAT system to ensure that the total transmit power of the bypass transmission of the V2X communication of the first RAT system and the bypass transmission of the V2X communication of the second RAT system in the overlapping area after adjustment is not greater than the maximum transmit power of the UE;

[0201] If one of the two bypass transmissions is a transmission on a bypass channel and the other is a reception on a bypass channel, the UE, before executing a transmission preparation time for the bypass transmission, discards the bypass transmission with the larger indicator value based on a comparison result between a seventh indicator value indicated by the "Priority" field of the SCI for the bypass transmission of the V2X communication of the first RAT system and an eighth indicator value indicated by the "Priority" field of the SCI for the bypass transmission of the V2X communication of the second RAT system; if the seventh indicator value is equal to the eighth indicator value, or if the seventh indicator value and / or the eighth indicator value cannot be obtained before executing the transmission preparation time for the bypass transmission, the UE discards the bypass transmission of the V2X communication of the first RAT system or the bypass transmission of the V2X communication of the second RAT system on its own, or always discards the bypass transmission of the V2X communication of the first RAT system or the bypass transmission of the V2X communication of the second RAT system according to a preconfigured or predefined rule.

[0202] If one of the two side transmissions is a send on the side channel and the other is a receive on the side channel, the UE executes the send side transmission and discards the receive side transmission;

[0203] If both bypass transmissions are received on the bypass channel, the UE automatically discards the bypass transmission of the V2X communication of the first RAT system or the bypass transmission of the V2X communication of the second RAT system.

[0204] In the first RAT system, for the first RAT system's UL transmission, bypass transmission of the first RAT system's V2X communication, and bypass transmission of the second RAT system's V2X communication, the above-mentioned optional embodiments of the present application provide optional processing solutions for when the bypass transmission (bypass transmission of the first RAT system's V2X communication or bypass transmission of the second RAT system's V2X communication) overlaps with the first RAT system's UL transmission in time, when the bypass transmission of the first RAT system's V2X communication and the bypass transmission of the second RAT system's V2X communication overlap in time, and when the three overlap. When the three overlap, the overlap between the two can be processed first, and then the other overlap can be processed based on the processing result. For the solution for processing the overlap between the two involved in the three overlaps, the solution for processing the overlap between the two provided in the above-mentioned embodiments can be adopted. Based on the solution provided in the embodiments of the present application, the problem of the temporal overlap between the two or three can be effectively resolved, ensuring normal transmission.

[0205] In addition, the above-mentioned SCI, i.e., bypass control information, the "Priority" parameter value in the SCI (i.e., the above-mentioned indication value) indicates the priority of the corresponding transmission. When the uplink transmission of the terminal conflicts with the bypass transmission, it can be indicated by the "priority" parameter in the SCI. The smaller the "Priority" parameter value in the SCI, the higher the priority, and the larger the "Priority" parameter value, the lower the priority.

[0206] The following further describes these optional embodiments, assuming that the first RAT system is an NR system and the second RAT system is an LTE system. In the description of the embodiments of the present application, the UL transmission of the NR system may be referred to as NR UL, the V2X communication of the LTE system may be referred to as LTE V2X, and the V2X communication of the NR system may be referred to as NR V2X.

[0207] For the case where NR UL and LTE V2X overlap

[0208] In this embodiment, the UE's NR UL transmission may overlap with the LTE V2X transmission or reception, and the UE's behavior should be specified at this time.

[0209] Optionally, when the transmission of NR UL overlaps with the reception of LTE V2X, the UE should send NR UL and drop the reception of LTE V2X, that is, the transmission of NR UL always has a higher priority than the reception of LTE V2X.

[0210] Optionally, when the transmission of NR UL operating in the same frequency band overlaps with the transmission of Mode 3 or Mode 4 of LTE V2X, if the priority of the data packet indicated in the corresponding bypass control information (Sidelink Control Information, SCI) of the bypass transmission is higher than the pre-configured threshold, that is, the indication value of the "Priority" field is less than the value of the higher-layer parameter "thresSL-TxPrioritization", then the UE should send LTE V2X Mode 3 or Mode 4 and discard the NR UL; conversely, if the indication value of the "Priority" field is greater than or equal to the value of the higher-layer parameter "thresSL-TxPrioritization", then the UE should send NR UL and discard the bypass transmission of Mode 3 or Mode 4 of LTE V2X. That is, for NR UL and LTE V2X operating in the same frequency band, the UE can only send one of them, and decide which one to discard based on whether the priority of the LTE V2X data packet is greater than the pre-configured threshold.

[0211] Optionally, when NR UL operating in different frequency bands overlaps with Mode 3 or Mode 4 transmission of LTE V2X, if the priority of the data packet indicated in the corresponding SCI of the bypass transmission is higher than the preconfigured threshold, that is, the indication value of the "Priority" field is less than the value of the higher-layer parameter "thresSL-TxPrioritization", then the UE shall adjust the NR UL transmit power to ensure that the total transmit power in the overlapping area does not exceed the rated maximum transmit power P of the UE. CMAX The specific adjustment method depends on the UE implementation; otherwise, if the indicated value of the "Priority" field is greater than or equal to the value of the higher-layer parameter "thresSL-TxPrioritization", the UE shall adjust the transmit power of Mode 3 or Mode 4 of LTE V2X to ensure that the total transmit power in the overlapping area does not exceed the rated maximum transmit power P of the UE. CMAX The specific adjustment method depends on the UE implementation. That is, the UE can decide whether to adjust the transmit power of Mode 3 or Mode 4 of LTE V2X according to the priority of the data packet. For NR UL and LTE V2X operating in different frequency bands, the UE shall not exceed P CMAX Under the premise of NR UL and LTE V2X, NR UL and LTE V2X can be sent simultaneously, and the transmission power of which one is adjusted is determined based on whether the priority of the LTE V2X data packet is greater than the preconfigured threshold.

[0212] Optionally, the above method is used to adjust the transmission power of one of the LTE V2X packets based on whether the priority of the LTE V2X packet is greater than a preconfigured threshold value, so that the transmission power of the LTE V2X packet is adjusted within a range of not more than P. CMAX It can also be applied to the situation where NR UL and LTE V2X working in the same frequency band overlap.

[0213] Optionally, the above method of discarding one of the LTE V2X data packets or adjusting the transmission power of one of them according to whether the priority of the LTE V2X data packet is greater than a preconfigured threshold is only applicable to the case where the UE can obtain the priority of the LTE V2X data packet before the preparation time of transmission. If the UE cannot obtain the priority of the LTE V2X data packet before the preparation time of transmission, then which one to discard or which one to adjust the transmission power depends on the implementation of the UE.

[0214] For the overlap between NR UL and NR V2X

[0215] In an example, the UE has both an NR UU module and an NR V2X module. The above-mentioned processing of the overlap between NR UL and LTE V2X can also be applied to the situation where NR UL and NR V2X overlap.

[0216] Optionally, when NR UL transmission overlaps with NR V2X reception, the UE should transmit NR UL and discard NR V2X reception. That is, NR UL transmission always has higher priority than NR V2X reception.

[0217] Optionally, when the transmission of NR UL and NR V2X operating in the same frequency band overlap, if the priority of the data packet indicated in the corresponding SCI of the bypass transmission is higher than a preconfigured threshold (if NR V2X transmits the PSFCH (Physical Sidelink Feedback Channel), the priority of the data packet of the corresponding PSSCH (Physical Sidelink Shared Channel) is used), that is, the value indicated in the "Priority" field is less than the value of the higher-layer parameter "thresSL-TxPrioritization", then the UE should transmit NR V2X and discard the NR UL. Conversely, if the value indicated in the "Priority" field is greater than or equal to the value of the higher-layer parameter "thresSL-TxPrioritization", then the UE should transmit NR UL and discard the NR V2X. That is, for NR UL and NR V2X operating in the same frequency band, the UE can only transmit one of them and decide which one to discard based on whether the priority of the NR V2X data packet is greater than the preconfigured threshold.

[0218] Optionally, when the transmission of NR UL and NR V2X operating in different frequency bands overlaps, if the priority of the data packet indicated in the corresponding SCI of the bypass transmission is higher than the preconfigured threshold (if NR V2X sends PSFCH, then the priority of the data packet of the corresponding PSSCH is used), that is, the indication value of the "Priority" field is less than the value of the high-level parameter "thresSL-TxPrioritization", then the UE should adjust the NR UL transmission power to ensure that the total transmission power in the overlapping area does not exceed the rated maximum transmission power P of the UE. CMAX The specific adjustment method depends on the UE implementation; otherwise, if the indicated value of the "Priority" field is greater than or equal to the value of the higher-layer parameter "thresSL-TxPrioritization", the UE shall adjust the NR V2X transmit power to ensure that the total transmit power in the overlapping area does not exceed the rated maximum transmit power P of the UE. CMAXThe specific adjustment method depends on the UE implementation. That is, the UE decides whether to adjust the NR V2X transmission power based on the priority of the data packet. That is, for NR UL and NR V2X operating in different frequency bands, the UE shall not exceed P CMAX Under the premise of NR UL and NR V2X, NR UL and NR V2X can be sent simultaneously, and the transmission power of which one is adjusted is determined based on whether the priority of the NR V2X data packet is greater than the preconfigured threshold.

[0219] Optionally, the above method is used to adjust the transmission power of one of the NR V2X packets based on whether the priority of the NR V2X packet is greater than a preconfigured threshold value, so that the transmission power of the NR V2X packet is adjusted within a range not exceeding P. CMAX It can also be applied to the situation where NR UL and NR V2X working in the same frequency band overlap.

[0220] Optionally, the above method of discarding one of the NR V2X data packets or adjusting the transmission power of one of them according to whether the priority of the NR V2X data packet is greater than a preconfigured threshold is only applicable to the case where the UE can obtain the priority of the NR V2X data packet before the preparation time of transmission. If the UE cannot obtain the priority of the NR V2X data packet before the preparation time of transmission, then which one to discard or which one to adjust the transmission power depends on the implementation of the UE.

[0221] For the overlap between LTE V2X and NR V2X

[0222] In an example, the UE has both an LTE V2X module and an NR V2X module, that is, it can support the coexistence of LTE V2X and NR V2X, then the transmission / reception of LTE V2X and the transmission / reception of NR V2X may overlap.

[0223] Optionally, when the transmission of NR V2X and LTE V2X operating in the same frequency band overlaps, if the UE can know the priority of the data packets of the two before the preparation time of transmission, then the UE should compare the priorities of the data packets of the two, discard the bypass transmission with low priority (the indication value of the "Priority" field is larger), and prepare and send the bypass transmission with high priority (the indication value of the "Priority" field is smaller); if the priorities of the data packets of the two are the same, or the UE cannot know the priorities of the data packets of the two before the preparation time of transmission, then which one the UE sends depends on the UE implementation.

[0224] Optionally, when the transmission of NR V2X operating in different frequency bands overlaps with the transmission of LTE V2X, if the UE is able to know the priority of the data packets of the two before the preparation time of transmission, then the UE should compare the priorities of the data packets of the two and adjust the transmit power of the bypass transmission with lower priority (the indication value of the "Priority" field is larger) to ensure that the total transmit power in the overlapping area does not exceed the rated maximum transmit power P of the UE. CMAX The specific adjustment method depends on the UE implementation; if the priority of the two packets is the same, or the UE cannot know the priority of the two packets before the preparation time of transmission, then the UE adjusts the transmit power of one of the bypass transmissions to ensure that the total transmit power in the overlapping area does not exceed the rated maximum transmit power P of the UE. CMAX Which one to adjust and the specific adjustment method depend on the UE implementation.

[0225] Optionally, when NR V2X transmission overlaps with LTE V2X reception, or when NR V2X reception overlaps with LTE V2X transmission, if the UE is able to know the priority of the data packets of both before the preparation time of transmission, then the UE should compare the priorities of the data packets of both, discard the bypass transmission with a lower priority (the indication value of the "Priority" field is larger), and send or receive the bypass transmission with a higher priority (the indication value of the "Priority" field is smaller). If the priorities of the two data packets are the same, or the UE cannot know the priorities of the two data packets before the preparation time of transmission, at least one of the following methods 1) to 5) can be used:

[0226] Method 1): discard one of the bypass transmissions. The specific one to be discarded depends on the UE implementation.

[0227] Method 2): Sending of bypass transmission has a higher priority than receiving, that is, the UE discards receiving of bypass transmission and performs sending of bypass transmission;

[0228] Method 3): LTE V2X has a higher priority, that is, the UE abandons the transmission or reception of NR V2X and performs the transmission or reception of LTE V2X;

[0229] Method 4): NR V2X has a higher priority, that is, the UE abandons the transmission or reception of LTE V2X and performs the transmission or reception of NR V2X;

[0230] Method 5): When LTE V2X transmission collides with NR V2X reception, LTE V2X transmission has higher priority, that is, the UE discards NR V2X reception and executes LTE V2X transmission; when LTE V2X reception collides with NR V2X transmission, one of the bypass transmissions is discarded, and which one is discarded depends on the UE implementation.

[0231] Optionally, when the reception of NR V2X and LTE V2X operating in the same frequency band overlaps, the UE should discard one of the side transmissions, depending on the UE implementation.

[0232] For the overlap of NR UL, LTE V2X, and NR V2X

[0233] In an optional embodiment, in addition to supporting NR UU control of LTE V2X, the UE can also support the coexistence of LTE V2X and NR V2X, that is, it includes an NR UU module, an NR V2X module and an LTE V2X module, then the transmission of NR UL, the transmission / reception of LTE V2X and the transmission / reception of NR V2X may overlap.

[0234] Optionally, when the transmission of NR UL and the reception / transmission of NR V2X and the reception / transmission of LTE V2X operating in the same frequency band overlap simultaneously, the UE should first process the overlap of the bypass link, and then process the overlap of the bypass link and NR UL, that is, first process the overlap of the reception / transmission of NR V2X and the reception / transmission of LTE V2X, and then process the overlap of the reception / transmission of NR V2X (or LTEV2X) and the transmission of NR UL. The overlap processing can use the method proposed in the previous embodiment of this application, that is, the processing scheme provided in the previous text when the two transmissions overlap.

[0235] Optionally, when the transmission of NR UL and the reception / transmission of NR V2X and the reception / transmission of LTE V2X operating in the same frequency band overlap simultaneously, the UE should first process the overlap of the NR RAT uplink, and then process the overlap of NR RAT and LTE TERAT, that is, first process the overlap of the transmission of NR UL and the reception / transmission of NR V2X and the reception / transmission of LTE V2X, and then process the overlap of the transmission of NR UL or the transmission / reception of NR V2X and the transmission / reception of LTE V2X. The corresponding overlap processing can use the methods proposed above in this application respectively.

[0236] Optionally, when the transmission of NR UL, the transmission of NR V2X, and the reception of LTE V2X operating in the same frequency band overlap simultaneously, or when the transmission of NR UL, the reception of NR V2X, and the transmission of LTE V2X operating in the same frequency band overlap simultaneously, the UE should first process the overlap between the transmission links, and then process the overlap between the transmission link and the reception link, that is, when the transmission of NR UL, the transmission of NR V2X, and the reception of LTE V2X overlap simultaneously, the UE first processes the overlap between the transmission of NR UL and the transmission of NR V2X, and then processes the overlap between the transmission of NR UL (or NR V2X) and the reception of LTE V2X; when the transmission of NR UL, the reception of NR V2X, and the transmission of LTE V2X overlap simultaneously, the UE first processes the overlap between the transmission of NR UL and the transmission of LTE V2X, and then processes the overlap between the transmission of NR UL (or LTE V2X) and the reception of NR V2X. The overlap processing can use the method proposed above in this application.

[0237] Optionally, when the transmission of NR UL and the reception of NR V2X and LTE V2X operating in the same frequency band overlap simultaneously, the UE should first process the overlap between the reception links, and then process the overlap between the transmission link and the reception link. That is, the UE should first process the overlap of NR V2X reception and LTE V2X reception, and then process the overlap of NR V2X (or LTE V2X) reception and NR UL transmission. The overlap processing can use the method proposed in the previous part of this application.

[0238] Optionally, when the transmission of NR UL, NR V2X and LTE V2X operating in the same frequency band overlaps simultaneously, the UE should first compare the priorities of the corresponding data packets of NR V2X and LTE V2X, and then compare the higher priority (the indication value of the "Priority" field is smaller) with the preconfigured threshold.

[0239] If the priorities of the corresponding data packets of LTE V2X and NR V2X are different, and the higher priority is higher than the pre-configured threshold, that is, the indication value of the "Priority" field is less than the value of the higher-layer parameter "thresSL-TxPrioritization", then the UE performs the transmission of the bypass transmission with the higher priority (the indication value of the "Priority" field is smaller), discards the transmission of the bypass transmission with the lower priority (the indication value of the "Priority" field is larger), and discards the transmission of the NR UL;

[0240] If the priorities of the corresponding data packets of LTE V2X and NR V2X are different, and the higher priority is lower than the pre-configured threshold, that is, the value indicated in the "Priority" field is greater than or equal to the value of the higher-layer parameter "thresSL-TxPrioritization", then the UE performs NR UL transmission and discards the transmission of LTE V2X and NR V2X;

[0241] If the priorities of the corresponding data packets of LTE V2X and NR V2X are the same and are lower than the pre-configured threshold, that is, the value indicated in the "Priority" field is greater than or equal to the value of the higher-layer parameter "thresSL-TxPrioritization", the UE performs NR UL transmission and discards the transmission of LTE V2X and NR V2X.

[0242] If the priorities of the corresponding data packets of LTE V2X and NR V2X are the same and the priorities are higher than the pre-configured threshold, that is, the value indicated in the "Priority" field is less than the value of the higher-layer parameter "thresSL-TxPrioritization", then the UE discards the transmission of NRUL and performs either LTE V2X or NR V2X transmission, whichever is transmitted depends on the UE implementation;

[0243] Optionally, LTE V2X is controlled via the NR UU, and NR V2X and LTE V2X can share the same "thresSL-TxPrioritization" configuration, i.e., the "thresSL-TxPrioritization" value configured by the NR base station can be applied to both NR V2X and LTE V2X. In another example, LTE V2X is controlled via the NR UU, and NR V2X and LTE V2X use different "thresSL-TxPrioritization" configurations, i.e., the NR base station configures corresponding "thresSL-TxPrioritization" values ​​for NR V2X and LTE V2X respectively.

[0244] Optionally, when the transmission of NR UL operating in different frequency bands overlaps with the transmission of NR V2X and the transmission of LTE V2X, the UE should first compare the priorities of the corresponding data packets of NR V2X and LTE V2X, and then compare the higher priority (the indication value of the "Priority" field is smaller) with the preconfigured threshold.

[0245] If the priorities of the corresponding data packets of LTE V2X and NR V2X are different, and the higher priority is lower than the preconfigured threshold, that is, the indication value of the "Priority" field is greater than or equal to the value of the higher-layer parameter "thresSL-TxPrioritization", then the UE shall adjust the transmit power of the bypass transmission with lower priority (the indication value of the "Priority" field is larger). If the transmit power of the bypass transmission with lower priority is adjusted, the total transmit power in the overlapping area still exceeds the rated maximum transmit power P of the UE after the total transmit power of the overlapping area still exceeds the rated maximum transmit power P of the UE. CMAX , then the UE discards the transmission of the low-priority bypass transmission. If, after discarding the transmission of the low-priority bypass transmission, the total transmit power of the overlapping area still exceeds the rated maximum transmit power P of the UE CMAX , the UE shall adjust the transmit power of the high priority bypass transmission to ensure that the total transmit power in the overlapping area does not exceed the rated maximum transmit power P of the UE CMAX ;

[0246] If the priorities of the corresponding data packets of LTE V2X and NR V2X are different, and the higher priority is higher than the preconfigured threshold, that is, the indication value of the "Priority" field is less than the value of the higher-layer parameter "thresSL-TxPrioritization", then the UE shall adjust the transmit power of the bypass transmission with lower priority (the indication value of the "Priority" field is larger). If the transmit power of the bypass transmission with lower priority is adjusted, the total transmit power in the overlapping area still exceeds the rated maximum transmit power P of the UE after the total transmit power of the overlapping area still exceeds the rated maximum transmit power P of the UE. CMAX , then the UE discards the transmission of the low-priority bypass transmission. If, after discarding the transmission of the low-priority bypass transmission, the total transmit power of the overlapping area still exceeds the rated maximum transmit power P of the UE CMAX , the UE shall adjust the UL transmit power to ensure that the total transmit power in the overlapping area does not exceed the rated maximum transmit power P of the UE. CMAX ;

[0247] If the priority of the corresponding data packets of LTE V2X and NR V2X is the same and the priority is lower than the pre-configured threshold, that is, the value indicated in the "Priority" field is greater than or equal to the value of the higher-layer parameter "thresSL-TxPrioritization", then the UE shall adjust the transmit power of LTE V2X and / or NR V2X to ensure that the total transmit power in the overlapping area does not exceed the rated maximum transmit power P of the UE. CMAX Which bypass transmission's transmit power is adjusted and the specific adjustment method depends on the UE implementation;

[0248] If the priorities of the corresponding data packets of LTE V2X and NR V2X are the same and the priorities are higher than the pre-configured threshold, that is, the value indicated in the "Priority" field is less than the value of the higher-layer parameter "thresSL-TxPrioritization", then the UE shall adjust the transmit power of NR UL. After the adjustment, if the total transmit power of the NR UL in the overlapping area still exceeds the rated maximum transmit power P of the UE, CMAX , then the UE discards the NR UL transmission. After discarding the NR UL, if the total transmit power in the overlapping area still exceeds the rated maximum transmit power P of the UE CMAX , the UE adjusts the transmit power of LTE V2X or NR V2X to ensure that the total transmit power in the overlapping area does not exceed the rated maximum transmit power P of the UE. CMAX Which bypass transmission's transmit power is adjusted and the specific adjustment method depend on the UE implementation.

[0249] The V2X communication method provided in the embodiments of the present application has been described in detail above, using a UE as the execution subject of the solution provided in the embodiments of the present application. The V2X communication method will be briefly described again below, using a base station of the first RAT system as the execution subject.

[0250] First of all, it should be noted that the description of the communication method below is only a description from the perspective of the base station. The essence of the content of the description is the same as the essence of the content described in the previous article when the UE is the execution subject. The following is just a brief description of the execution of the method on the base station side. For detailed content, please refer to the description of the corresponding part in the previous article. Many contents will not be repeated one by one.

[0251] With the base station of the first RAT system as the execution entity, the V2X communication method provided in the embodiment of the present application may include:

[0252] The base station of the first RAT system (hereinafter referred to as the base station) sends configuration information about the V2X communication of the second RAT system to the UE through high-layer signaling, so that the UE performs corresponding bypass transmission according to the configuration information about the V2X communication of the second RAT system.

[0253] The UE also includes a UU interface module for the first RAT system and a V2X communication module supporting a V2X communication function of the second RAT system, and the V2X communication module communicates with the base station through the UU interface module.

[0254] Among them, the UE sends the relevant information of V2X communication with the second RAT system received from the base station to the V2X communication module through the UU interface module, and sends the information sent to the base station by the V2X communication module to the base station through the UU interface module, and the V2X communication module performs bypass transmission related to the V2X communication with the second RAT system.

[0255] Optionally, the above-mentioned high-layer signaling may include UE_specific RRC signaling and / or a predefined dedicated cell SIB.

[0256] Among them, the above-mentioned configuration information about the V2X communication of the second RAT system can refer to the description of the configuration information in the previous text.

[0257] Optionally, the method further includes:

[0258] The base station sends a DCI indicating bypass resource scheduling information regarding the V2X communication of the second RAT system to the UE, so that the UE performs corresponding bypass transmission according to the configuration information regarding the V2X communication of the second RAT system and the bypass resource scheduling information.

[0259] Among them, the detailed relevant content of the DCI used to indicate the bypass resource scheduling information about the V2X communication of the second RAT system can be found in the corresponding description of the DCI in the previous text.

[0260] Optionally, the base station sending, to the UE, DCI for indicating bypass resource scheduling information regarding V2X communication of the second RAT system may specifically include:

[0261] receiving a resource scheduling request for V2X communication of a second RAT system, sent by the UE through at least one of RRC signaling, dedicated SR signaling, and a dedicated BSR;

[0262] A DCI indicating bypass resource scheduling information for V2X communication of the second RAT system is sent to the UE according to the resource scheduling request.

[0263] Optionally, the method also includes: receiving capability information sent by the UE to inform the UE of its communication capabilities, the capability information including the UE's ability to support information interaction between the UU interface module and the V2X communication module. On this basis, the capability information may also include information on the information interaction time between the UE's UU interface module and the V2X communication module.

[0264] Based on the same principle, the embodiment of the present application also provides a user equipment, i.e., a terminal, such as Figure 5 As shown in FIG, the user equipment 100 may include:

[0265] The UU interface module 110 is configured to receive configuration information about V2X communication of the second RAT system sent by the base station of the first RAT system through high-layer signaling;

[0266] The V2X communication module 120 is configured to perform corresponding bypass transmission according to configuration information about the V2X communication of the second RAT system.

[0267] Optionally, the UU interface module may also be configured to receive a DCI sent by the base station for indicating bypass resource scheduling information regarding V2X communication of the second RAT system;

[0268] Accordingly, the V2X communication module can be specifically used to perform corresponding bypass transmission according to the configuration information and bypass resource scheduling information about the V2X communication of the second RAT system.

[0269] Optionally, the UU interface module is specifically used to send a resource scheduling request for V2X communication of the second RAT system to the base station through at least one of RRC signaling, dedicated SR signaling and dedicated BSR, and receive the above-mentioned DCI sent by the base station according to the resource scheduling request.

[0270] Based on the same principle, an embodiment of the present application further provides a base station, wherein the base station is a base station of a first RAT system, and the base station includes:

[0271] The UU interface module is configured to send configuration information about the V2X communication of the second RAT system to the UE through high-layer signaling, so that the UE performs corresponding bypass transmission according to the configuration information about the V2X communication of the second RAT system.

[0272] Optionally, the UU interface module of the base station is also used to send a DCI indicating bypass resource scheduling information about the V2X communication of the second RAT system to the UE, so that the UE performs corresponding bypass transmission according to the configuration information about the V2X communication of the second RAT system and the bypass resource scheduling information.

[0273] Optionally, the UU interface module of the base station may be specifically used for:

[0274] receiving a resource scheduling request for V2X communication of a second RAT system, sent by the UE through at least one of RRC signaling, dedicated SR signaling, and a dedicated BSR;

[0275] A DCI indicating bypass resource scheduling information for V2X communication of the second RAT system is sent to the UE according to the resource scheduling request.

[0276] It should be noted that since the user equipment and base station provided in the embodiments of the present invention are devices that can perform the methods in the embodiments of the present invention, based on the methods provided in the embodiments of the present invention, those skilled in the art can understand the specific implementation methods and various variations of the devices in the embodiments of the present invention. Therefore, how the devices implement the methods in the embodiments of the present invention will not be described in detail here. As long as those skilled in the art implement the devices used in the methods in the embodiments of the present invention, they fall within the scope of protection of this application.

[0277] Based on the same principle, an embodiment of the present application also provides a communication system, which includes the user equipment provided by any embodiment of the present application and the base station provided by any embodiment of the present application.

[0278] An embodiment of the present application provides an electronic device, which includes a memory and a processor; wherein the memory stores a computer program; the processor is used to call the computer program to execute the method provided in any optional embodiment of the present application.

[0279] An embodiment of the present application provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the method provided in any optional embodiment of the present application is implemented.

[0280] Those skilled in the art will appreciate that the present invention includes devices for performing one or more of the operations described herein. These devices may be specially designed and manufactured for the desired purpose, or may include known devices found in general-purpose computers. These devices may have computer programs stored therein, which are selectively activated or reconfigured. Such computer programs may be stored in a device (e.g., a computer) readable medium or in any type of medium suitable for storing electronic instructions and coupled to a bus, including but not limited to any type of disk (including floppy disks, hard disks, optical disks, CD-ROMs (Compact Disc Read Only Memory), and magneto-optical disks), ROMs (Read-Only Memory), RAMs (Random Access Memory), EPROMs (Erasable Programmable Read-Only Memory), EEPROMs (Electrically Erasable Programmable Read-Only Memory), flash memory, magnetic cards, or optical cards. In other words, readable media include any medium that can be used by a device (e.g., a computer) to store or transmit information in a readable form.

[0281] Those skilled in the art will appreciate that each block in these structural diagrams and / or block diagrams and / or flow charts, as well as combinations of blocks in these structural diagrams and / or block diagrams and / or flow charts, can be implemented using computer program instructions. Those skilled in the art will appreciate that these computer program instructions can be provided to a general-purpose computer, a specialized computer, or a processor of other programmable data processing methods for implementation, thereby executing the schemes specified in the blocks or multiple blocks in the structural diagrams and / or block diagrams and / or flow charts disclosed in the present invention through the processor of the computer or other programmable data processing method.

[0282] Those skilled in the art will appreciate that the steps, measures, and schemes in the various operations, methods, and processes discussed in the present invention may be interchanged, modified, combined, or deleted. Furthermore, other steps, measures, and schemes in the various operations, methods, and processes discussed in the present invention may also be interchanged, modified, rearranged, decomposed, combined, or deleted. Furthermore, steps, measures, and schemes in the prior art that are similar to those disclosed in the present invention may also be interchanged, modified, rearranged, decomposed, combined, or deleted.

[0283] Figure 6 An electronic device suitable for the solution provided in the embodiment of the present application is shown. Figure 6 As shown, the electronic device 4000 includes a processor 4001 and a memory 4003. The processor 4001 and the memory 4003 are connected, for example, via a bus 4002. Optionally, the electronic device 4000 may further include a transceiver 4004. It should be noted that in actual applications, the number of transceivers 4004 is not limited to one, and the structure of the electronic device 4000 does not constitute a limitation on the embodiments of the present application.

[0284] Processor 4001 may be a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. Processor 4001 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0285] Bus 4002 may include a path for transmitting information between the above components. Bus 4002 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus. Bus 4002 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 6 Only one thick line is used in the diagram, but this does not mean that there is only one bus or one type of bus.

[0286] The memory 4003 may be a ROM or other type of static storage device that can store static information and instructions, a RAM or other type of dynamic storage device that can store information and instructions, or an EEPROM, a CD-ROM or other optical disk storage, an optical disc storage (including a compact disc, a laser disc, an optical disc, a digital versatile disc, a Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited to these.

[0287] The memory 4003 is used to store application code for executing the solution of the present application, and the execution is controlled by the processor 4001. The processor 4001 is used to execute the application code stored in the memory 4003 to implement the content shown in any of the above method embodiments.

[0288] It should be understood that although the steps in the flowcharts of the accompanying drawings are shown in sequence as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in the flowcharts of the accompanying drawings may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be executed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

[0289] The above descriptions are only partial embodiments of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A method for operating a user equipment (UE) in a wireless communication system, the method comprising: receiving, from a base station of a first RAT, first downlink control information (DCI) for scheduling a bypass SL of a second RAT; as well as performing transmission of the SL of the second RAT based on the first DCI; The first DCI is scrambled by the first RNTI; wherein the first RNTI is different from the RNTI used to scramble the second DCI, wherein the second DCI is used to schedule the SL of the first RAT; If the number of information bits of the second DCI is less than the payload size of the first DCI, add at least one zero bit to the second DCI until the payload size of the second DCI is equal to the payload size of the first DCI; The SL of the second RAT scheduled by the first DCI is transmitted at least after a time offset from reception of the first DCI, wherein the time offset includes a first time offset and a second time offset, the first time offset being a value indicated by a time offset field in the first DCI, and the second time offset being a value indicated by an SL index field in the first DCI; The first time offset is an additional time offset between reception of the first DCI and transmission of a SL transmission of the second RAT scheduled by the first DCI.

2. The method according to claim 1, characterized in that A cyclic redundancy check (CRC) of the first DCI is scrambled by the first RNTI.

3. The method according to claim 1 or 2, characterized in that If the number of information bits of the first DCI is smaller than the payload size of the second DCI, at least one zero bit is added to the first DCI until the payload size of the first DCI is equal to the payload size of the second DCI.

4. The method according to claim 1, wherein The method further comprises: receiving, from the base station of the first RAT, a second DCI for scheduling the SL of the first RAT; and performing transmission of the SL of the first RAT based on the second DCI; The CRC of the second DCI is scrambled by a second RNTI, and the second RNTI is different from the first RNTI.

5. The method according to claim 1, wherein The SL of the second RAT cannot be earlier than the time point milliseconds are sent, where is the start time of the timeslot where the first DCI is located, Indicates the time offset of the UE's uplink radio frame relative to the downlink radio frame, represents the duration of a sample, X Indicated by the first DCI, Indicated by the first DCI, if is not indicated by the first DCI, then .

6. The method according to claim 1, wherein In the event that the SL of the second RAT overlaps with an uplink transmission and the SL transmission of the second RAT has a higher priority than a preconfigured threshold, reducing the power used for the uplink transmission to ensure that the total transmission power of the UE does not exceed P CMAX .

7. The method according to claim 1, characterized in that In the event that the SL of the second RAT overlaps with an uplink transmission and the SL transmission of the second RAT has a priority lower than a preconfigured threshold, reducing the power used for the SL transmission of the second RAT to ensure that the total transmission power of the UE does not exceed P CMAX .

8. The method according to claim 1, characterized in that Performing transmission of the SL of the second RAT further includes: In a case where transmission of the SL of the second RAT temporally overlaps with transmission of the SL of the first RAT, the SL of the second RAT and the SL of the first RAT having a higher priority are transmitted.

9. The method according to claim 8, characterized in that At least before performing transmission of the SL of the second RAT or the SL of the first RAT, the priority of the SL of the second RAT and the priority of the SL of the first RAT are known.

10. The method according to claim 1, characterized in that If the first DCI does not include an SL index field, the second time offset is 0.

11. The method according to any one of claims 1 to 9, characterized in that The first RAT is New Radio NR, and the second RAT is Long Term Evolution LTE.

12. A user equipment (UE) in a wireless communication system, characterized in that: The UE includes: transceiver; and at least one processor connected to the transceiver and configured to: receiving first downlink control information DCI for scheduling a bypass SL of a second RAT from a base station of a first RAT; and performing transmission of the SL of the second RAT based on the first DCI; The first DCI is scrambled by the first RNTI; wherein the first RNTI is different from the RNTI used to scramble the second DCI, wherein the second DCI is used to schedule the SL of the first RAT; If the number of information bits of the second DCI is less than the payload size of the first DCI, add at least one zero bit to the second DCI until the payload size of the second DCI is equal to the payload size of the first DCI; The SL of the second RAT scheduled by the first DCI is transmitted at least after a time offset from reception of the first DCI, wherein the time offset includes a first time offset and a second time offset, the first time offset being a value indicated by a time offset field in the first DCI, and the second time offset being a value indicated by an SL index field in the first DCI; The first time offset is an additional time offset between reception of the first DCI and transmission of a SL transmission of the second RAT scheduled by the first DCI.

13. The UE according to claim 12, wherein: A cyclic redundancy check (CRC) of the first DCI is scrambled by the first RNTI.

14. The UE according to claim 12 or 13, characterized in that If the number of information bits of the first DCI is smaller than the payload size of the second DCI, at least one zero bit is added to the first DCI until the payload size of the first DCI is equal to the payload size of the second DCI.

15. The UE according to claim 12, wherein: The at least one processor is further configured to: receiving, from the base station of the first RAT, a second DCI for scheduling the SL of the first RAT; as well as performing transmission of the SL of the first RAT based on the second DCI; The CRC of the second DCI is scrambled by a second RNTI, and the second RNTI is different from the first RNTI.

16. The UE according to claim 12, wherein: The SL of the second RAT cannot be earlier than the time point milliseconds are sent, where is the start time of the timeslot where the first DCI is located, Indicates the time offset of the UE's uplink radio frame relative to the downlink radio frame, represents the duration of one sample, X is indicated by the first DCI, Indicated by the first DCI, if is not indicated by the first DCI, then .

17. The UE according to claim 12, wherein: In the event that the SL of the second RAT overlaps with an uplink transmission and the SL transmission of the second RAT has a higher priority than a preconfigured threshold, reducing the power used for the uplink transmission to ensure that the total transmission power of the UE does not exceed P CMAX .

18. The UE according to claim 12, wherein: In the event that the SL of the second RAT overlaps with an uplink transmission and the SL transmission of the second RAT has a priority lower than a preconfigured threshold, reducing the power used for the SL transmission of the second RAT to ensure that the total transmission power of the UE does not exceed P CMAX .

19. The UE according to claim 12, wherein: Performing transmission of the SL of the second RAT further includes: In a case where transmission of the SL of the second RAT temporally overlaps with transmission of the SL of the first RAT, the SL of the second RAT and the SL of the first RAT having a higher priority are transmitted.

20. The UE according to claim 19, wherein: At least before performing transmission of the SL of the second RAT or the SL of the first RAT, the priority of the SL of the second RAT and the priority of the SL of the first RAT are known.

21. The UE according to claim 12, wherein: If the first DCI does not include an SL index field, the second time offset is 0.

22. The UE according to any one of claims 12 to 21, wherein: The first RAT is New Radio NR, and the second RAT is Long Term Evolution LTE.

23. A method for operating a base station of a first RAT in a wireless communication system, characterized in that: The method comprises: Sending first downlink control information DCI for scheduling a bypass SL of a second RAT to a user equipment UE; The first DCI is scrambled by the first RNTI; wherein the first RNTI is different from the RNTI used to scramble the second DCI, wherein the second DCI is used to schedule the SL of the first RAT; If the number of information bits of the second DCI is less than the payload size of the first DCI, at least one zero bit is added to the second DCI until the payload size of the second DCI is equal to the payload size of the first DCI; The SL of the second RAT scheduled by the first DCI is transmitted at least after a time offset from reception of the first DCI, wherein the time offset includes a first time offset and a second time offset, the first time offset being a value indicated by a time offset field in the first DCI, and the second time offset being a value indicated by an SL index field in the first DCI; The first time offset is an additional time offset between reception of the first DCI and transmission of a SL transmission of the second RAT scheduled by the first DCI.

24. The method according to claim 23, wherein A cyclic redundancy check (CRC) of the first DCI is scrambled by the first RNTI.

25. The method according to claim 23 or 24, characterized in that If the number of information bits of the first DCI is smaller than the payload size of the second DCI, at least one zero bit is added to the first DCI until the payload size of the first DCI is equal to the payload size of the second DCI.

26. The method according to claim 23, wherein The method further comprises: Sending a second DCI for scheduling the SL of the first RAT; The CRC of the second DCI is scrambled by a second RNTI, and the second RNTI is different from the first RNTI.

27. The method according to claim 23, characterized in that The SL of the second RAT cannot be earlier than the time point milliseconds are sent, where is the start time of the timeslot where the first DCI is located, Indicates the time offset of the UE's uplink radio frame relative to the downlink radio frame, represents the duration of a sample, X Indicated by the first DCI, Indicated by the first DCI, if is not indicated by the first DCI, then .

28. The method according to claim 24, characterized in that In the event that the SL of the second RAT overlaps with an uplink transmission and the SL transmission of the second RAT has a higher priority than a preconfigured threshold, reducing the power used for the uplink transmission to ensure that the total transmission power of the UE does not exceed P CMAX .

29. The method according to claim 23, wherein In the event that the SL of the second RAT overlaps with an uplink transmission and the SL transmission of the second RAT has a priority lower than a preconfigured threshold, reducing the power for the SL transmission of the second RAT to ensure that the total transmission power of the UE does not exceed P CMAX .

30. The method according to claim 23, wherein Performing transmission of the SL of the second RAT further includes: In a case where transmission of the SL of the second RAT temporally overlaps with transmission of the SL of the first RAT, the SL of the second RAT and the SL of the first RAT having a higher priority are transmitted.

31. The method according to claim 30, wherein At least before performing transmission of the SL of the second RAT or the SL of the first RAT, the priority of the SL of the second RAT and the priority of the SL of the first RAT are known.

32. The method according to claim 23, wherein If the first DCI does not include an SL index field, the second time offset is 0.

33. The method according to any one of claims 23 to 32, characterized in that The first RAT is New Radio NR, and the second RAT is Long Term Evolution LTE.

34. A base station in a wireless communication system, characterized in that: The base station includes: transceiver; and at least one processor, the at least one transceiver being connected to the transceiver and configured to: Sending first downlink control information DCI for scheduling a bypass SL of a second RAT to a user equipment UE; The first DCI is scrambled by the first RNTI; wherein the first RNTI is different from the RNTI used to scramble the second DCI, wherein the second DCI is used to schedule the SL of the first RAT; If the number of information bits of the second DCI is less than the payload size of the first DCI, at least one zero bit is added to the second DCI until the payload size of the second DCI is equal to the payload size of the first DCI; The SL of the second RAT scheduled by the first DCI is transmitted at least after a time offset from reception of the first DCI, wherein the time offset includes a first time offset and a second time offset, the first time offset being a value indicated by a time offset field in the first DCI, and the second time offset being a value indicated by an SL index field in the first DCI; The first time offset is an additional time offset between reception of the first DCI and transmission of a SL transmission of the second RAT scheduled by the first DCI.

35. The base station according to claim 34, characterized in that A cyclic redundancy check (CRC) of the first DCI is scrambled by the first RNTI.

36. The base station according to claim 34 or 35, characterized in that If the number of information bits of the first DCI is smaller than the payload size of the second DCI, at least one zero bit is added to the first DCI until the payload size of the first DCI is equal to the payload size of the second DCI.

37. The base station according to claim 34, characterized in that The at least one transceiver is further configured to: Sending a second DCI for scheduling the SL of the first RAT; The CRC of the second DCI is scrambled by a second RNTI, and the second RNTI is different from the first RNTI.

38. The base station according to claim 34, wherein: The SL of the second RAT cannot be earlier than the time point milliseconds are sent, where is the start time of the timeslot where the first DCI is located, Indicates the time offset of the UE's uplink radio frame relative to the downlink radio frame, represents the duration of one sample, X is indicated by the first DCI, Indicated by the first DCI, if is not indicated by the first DCI, then .

39. The base station according to claim 34, wherein In the event that the SL of the second RAT overlaps with an uplink transmission and the SL transmission of the second RAT has a higher priority than a preconfigured threshold, reducing the power used for the uplink transmission to ensure that the total transmission power of the UE does not exceed P CMAX .

40. The base station according to claim 34, wherein In the event that the SL of the second RAT overlaps with an uplink transmission and the SL transmission of the second RAT has a priority lower than a preconfigured threshold, reducing the power for the SL transmission of the second RAT to ensure that the total transmission power of the UE does not exceed P CMAX .

41. The base station according to claim 34, wherein Performing transmission of the SL of the second RAT further includes: In a case where transmission of the SL of the second RAT temporally overlaps with transmission of the SL of the first RAT, the SL of the second RAT and the SL of the first RAT having a higher priority are transmitted.

42. The base station according to claim 34, wherein At least before performing transmission of the SL of the second RAT or the SL of the first RAT, the priority of the SL of the second RAT and the priority of the SL of the first RAT are known.

43. The base station according to claim 34, characterized in that If the first DCI does not include an SL index field, the second time offset is 0.

44. The base station according to any one of claims 34 to 43, characterized in that The first RAT is New Radio NR, and the second RAT is Long Term Evolution LTE.

Images