Information transmission method and device, communication equipment and storage medium

Abstract

The embodiment of the invention relates to an information transmission method and device, communication equipment and a storage medium, user equipment (UE) sends communication capability information, and the communication capability information is used for indicating whether the UE can adopt a plurality of interfaces to carry out data transmission in a working frequency band or not; power indication information is sent, and the power indication information is used for indicating the total power level of the UE of the working frequency band; receiving configuration information sent by the base station; and determining a UE power configuration parameter of at least one interface in the working frequency band according to the configuration information.

Description

[0001] This disclosure is a divisional application of a Chinese application with an application date of June 18, 2021, an application number of 202180001904.4, and an invention title of "Information Transmission Method, Device, Communication Equipment, and Storage Medium". Technical Field

[0002] This application relates to the field of wireless communication technologies, but is not limited to wireless communication technologies, and particularly relates to an information transmission method, device, communication equipment, and storage medium. Background Art

[0003] Vehicle-to-Everything (V2X) wireless communication technology is a new generation of information and communication technology that connects vehicles to everything. V2X can provide two communication interfaces, namely the Uu interface (cellular communication interface) and the PC5 interface (direct link interface).

[0004] The demand for mobile communication spectrum is increasing day by day, but the actual available spectrum is gradually decreasing. For existing licensed frequency bands, it is a current major demand to simultaneously transmit New Radio (NR) licensed spectrum services and NR V2X services on the licensed spectrum. For a terminal, it will be a very common scenario to simultaneously perform NR licensed spectrum services and NR direct link services on the same frequency band. Summary of the Invention

[0005] In view of this, embodiments of the present disclosure provide an information transmission method, device, communication equipment, and storage medium.

[0006] According to a first aspect of the embodiments of the present disclosure, there is provided an information transmission method, wherein the method is executed by a user equipment (UE), and the method includes:

[0007] Sending power indication information, wherein the power indication information is used to indicate the UE power levels of multiple interfaces within a working frequency band.

[0008] In one embodiment, the power indication information is further used to indicate the total UE power level of the working frequency band.

[0009] In one embodiment, the method further includes:

[0010] Receiving configuration information sent by a base station based on the power indication information;

[0011] Determining UE power configuration parameters of at least one of the interfaces according to the configuration information.

[0012] In one embodiment, the UE power configuration parameters include at least one of the following:

[0013] Highest configured power;

[0014] Allowed power back-off;

[0015] Specific Absorption Rate (SAR) regulation strategy.

[0016] In one embodiment, the method further includes:

[0017] Receiving a communication capability reporting request sent by a base station;

[0018] In response to the communication capability reporting request, sending communication capability information, where the communication capability information is used to indicate whether the UE is capable of performing data transmission using multiple interfaces in the operating frequency band.

[0019] In one embodiment, the interface includes:

[0020] Uu interface and / or direct link PC5 interface.

[0021] According to a second aspect of the embodiments of the present disclosure, there is provided an information transmission method, where the method is executed by a base station, and the method includes:

[0022] Receiving power indication information sent by a user equipment (UE);

[0023] Determining the UE power levels of multiple interfaces within the operating frequency band according to the power indication information.

[0024] In one embodiment, the method further includes:

[0025] Determining the total UE power level of the operating frequency band according to the power indication information.

[0026] In one embodiment, the method further includes:

[0027] Determining UE power configuration parameters of at least one of the interfaces based on the power indication information;

[0028] Sending configuration information indicating the UE power configuration parameters to the UE.

[0029] In one embodiment, the UE power configuration parameters include at least one of the following:

[0030] Highest configured power;

[0031] Allowed power back-off;

[0032] Specific Absorption Rate (SAR) regulation strategy.

[0033] In one embodiment, the method further includes:

[0034] Send a communication capability reporting request to the UE,

[0035] Receive the communication capability information sent by the UE in response to the communication capability reporting request;

[0036] Determine whether the UE can perform data transmission using multiple interfaces in the operating frequency band according to the communication capability information.

[0037] In one embodiment, the interfaces include:

[0038] Uu interface and / or direct link PC5 interface.

[0039] According to the third aspect of the embodiments of the present disclosure, an information transmission device is provided, where the device includes: a first sending module, where,

[0040] The first sending module is configured to send power indication information, where the power indication information is used to indicate the UE power levels of multiple interfaces within the operating frequency band.

[0041] In one embodiment, the power indication information is further used to indicate the total UE power level of the operating frequency band.

[0042] In one embodiment, the device further includes:

[0043] A first receiving module configured to receive configuration information sent by the base station based on the power indication information;

[0044] A first determining module configured to determine the UE power configuration parameters of at least one of the interfaces according to the configuration information.

[0045] In one embodiment, the UE power configuration parameters include at least one of the following:

[0046] Highest configured power;

[0047] Allowed power back-off;

[0048] Specific absorption rate (SAR) regulation strategy.

[0049] In one embodiment, the device further includes:

[0050] A second receiving module configured to receive a communication capability reporting request sent by the base station;

[0051] A second sending module configured to send communication capability information in response to the communication capability reporting request, where the communication capability information is used to indicate whether the UE can perform data transmission using multiple interfaces in the operating frequency band.

[0052] In one embodiment, the interface includes:

[0053] The Uu interface and / or the direct link PC5 interface.

[0054] According to a fourth aspect of the embodiments of the present disclosure, there is provided an information transmission device, where the device includes: a third receiving module and a second determining module, where

[0055] The third receiving module is configured to receive power indication information sent by a user equipment (UE);

[0056] The second determining module is configured to determine the UE power levels of multiple interfaces within the operating frequency band according to the power indication information.

[0057] In one embodiment, the device further includes:

[0058] A third determining module is configured to determine the total UE power level of the operating frequency band according to the power indication information.

[0059] In one embodiment, the device further includes:

[0060] A fourth determining module is configured to determine UE power configuration parameters of at least one of the interfaces based on the power indication information;

[0061] A third sending module is configured to send configuration information indicating the UE power configuration parameters to the UE.

[0062] In one embodiment, the UE power configuration parameters include at least one of the following:

[0063] The highest configured power;

[0064] The allowed power back-off;

[0065] The specific absorption rate (SAR) regulation strategy.

[0066] In one embodiment, the device further includes:

[0067] A fourth sending module is configured to send a communication capability reporting request to the UE,

[0068] A fourth receiving module is configured to receive communication capability information sent by the UE in response to the communication capability reporting request;

[0069] A fifth determining module is configured to determine whether the UE can perform data transmission using multiple interfaces within the operating frequency band according to the communication capability information.

[0070] In one embodiment, the interface includes:

[0071] Uu interface and / or direct link PC5 interface.

[0072] According to a fifth aspect of the embodiments of the present disclosure, a communication device is provided, including a processor, a memory, and an executable program stored on the memory and capable of being run by the processor. When the processor runs the executable program, it executes the steps of the information transmission method described in the first aspect or the second aspect.

[0073] According to a sixth aspect of the embodiments of the present disclosure, a storage medium is provided, on which an executable program is stored. When the executable program is executed by a processor, it implements the steps of the information transmission method described in the first aspect or the second aspect.

[0074] According to the information transmission method, device, communication device, and storage medium provided by the embodiments of the present disclosure, a UE sends power indication information, where the power indication information is used to indicate the UE power levels of multiple interfaces within an operating frequency band. In this way, by the UE reporting the UE power levels of multiple interfaces within the operating frequency band, the base station can determine the UE power level of each interface, improving the accuracy of the base station in determining the UE power level of the interface, and further reducing parameter configuration errors caused by the inability to determine the UE power level of the interface.

[0075] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] The drawings herein are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present invention and, together with the specification, used to explain the principles of the embodiments of the present invention.

[0077] Figure 1 is a schematic structural diagram of a wireless communication system shown according to an exemplary embodiment;

[0078] Figure 2 is a schematic flowchart of an information transmission method shown according to an exemplary embodiment;

[0079] Figure 3 is a schematic flowchart of another information transmission method shown according to an exemplary embodiment;

[0080] Figure 4 is an interaction schematic diagram between a base station and a UE shown according to an exemplary embodiment;

[0081] Figure 5 is a schematic flowchart of yet another information transmission method shown according to an exemplary embodiment;

[0082] Figure 6It is a block diagram of an information transmission device shown according to an exemplary embodiment;

[0083] Figure 7 It is a block diagram of another information transmission device shown according to an exemplary embodiment;

[0084] Figure 8 It is a block diagram of a device for information transmission shown according to an exemplary embodiment. Detailed implementation manners

[0085] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the embodiments of the present invention. On the contrary, they are merely examples of devices and methods consistent with some aspects of the embodiments of the present invention as detailed in the appended claims.

[0086] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present disclosure. The singular forms "a", "the", and "said" used in the embodiments of the present disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0087] It should be understood that although the terms first, second, third, etc. may be used in the embodiments of the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to determining".

[0088] Please refer to Figure 1 , which shows a schematic structural diagram of a wireless communication system provided by the embodiments of the present disclosure. As Figure 1 shown, the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include: a plurality of terminals 11 and a plurality of base stations 12.

[0089] Among them, the terminal 11 can be a device that provides voice and / or data connectivity to the user. The terminal 11 can communicate with one or more core networks via a Radio Access Network (RAN). The terminal 11 can be an Internet of Things (IoT) terminal, such as a sensor device, a mobile phone (or a "cellular" phone), and a computer with an IoT terminal. For example, it can be a fixed, portable, pocket-sized, handheld, computer-integrated, or vehicle-mounted device. For example, a Station (STA), a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, or a User Equipment (UE). Alternatively, the terminal 11 can also be a device of an unmanned aerial vehicle. Alternatively, the terminal 11 can also be a vehicle-mounted device, such as a vehicle computer with wireless communication capabilities, or a wireless communication device external to the vehicle computer. Alternatively, the terminal 11 can also be a roadside device, such as a street lamp, a traffic signal, or other roadside devices with wireless communication capabilities, etc.

[0090] The base station 12 can be a network-side device in a wireless communication system. Among them, the wireless communication system can be a 4th generation mobile communication (4G) system, also known as the Long Term Evolution (LTE) system; or, the wireless communication system can also be a 5G system, also known as the new radio (NR) system or the 5G NR system. Or, the wireless communication system can also be the next generation system after the 5G system. Among them, the access network in the 5G system can be called the NG-RAN (New Generation - Radio Access Network, new generation wireless access network). Or, an MTC system.

[0091] Among them, the base station 12 may be an evolved Node B (eNB) adopted in a 4G system. Alternatively, the base station 12 may also be a gNB (gNode B) with a centralized distributed architecture adopted in a 5G system. When the base station 12 adopts a centralized distributed architecture, it generally includes a central unit (CU) and at least two distributed units (DUs). The protocol stacks of the Packet Data Convergence Protocol (PDCP) layer, Radio Link Control (RLC) layer, and Media Access Control (MAC) layer are set in the central unit; the Physical (PHY) layer protocol stack is set in the distributed unit. The specific implementation manner of the base station 12 is not limited in the embodiments of the present disclosure.

[0092] A wireless connection may be established between the base station 12 and the terminal 11 through a wireless air interface. In different embodiments, the wireless air interface is a wireless air interface based on the fourth-generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth-generation mobile communication network technology (5G) standard, such as the new air interface; or, the wireless air interface may also be a wireless air interface based on the next-generation mobile communication network technology standard of 5G.

[0093] In some embodiments, an E2E (End to End) connection may also be established between the terminals 11. For example, in vehicle-to-everything (V2X) communication, scenarios such as vehicle-to-vehicle (V2V) communication, vehicle-to-Infrastructure (V2I) communication, and vehicle-to-pedestrian (V2P) communication.

[0094] In some embodiments, the above wireless communication system may further include a network management device 13.

[0095] A plurality of base stations 12 are respectively connected to a network management device 13. Among them, the network management device 13 may be a core network device in a wireless communication system. For example, the network management device 13 may be a Mobility Management Entity (MME) in an Evolved Packet Core (EPC). Alternatively, the network management device may also be other core network devices, such as a Serving GateWay (SGW), a Public Data Network GateWay (PGW), a Policy and Charging Rules Function (PCRF), or a Home Subscriber Server (HSS), etc. The implementation form of the network management device 13 is not limited in the embodiments of the present disclosure.

[0096] The execution entities involved in the embodiments of the present disclosure include, but are not limited to: UE such as a mobile phone terminal supporting cellular mobile communication, and base stations, etc.

[0097] An application scenario of the embodiments of the present disclosure is that a terminal or other UE can report the output power of a wireless signal. For example, the UE can report the output power using ue - PowerClass. The reported output power is based on a frequency band, that is, the UE can report the output power on a frequency band. The UE usually reports the output power in the form of power levels, and the power levels include PC2 and PC3, etc. Among them, PC3 represents a maximum power of 23 dBm, and PC2 represents a maximum power of 26 dBm. When the UE simultaneously performs NR authorized spectrum services and NR direct link services on the same frequency band, the output power report is based on the power level of its authorized spectrum service, and the power level of the NR direct link service is not taken into account.

[0098] Exemplarily: For the authorized spectrum service on the NR Uu interface, its power level can be PC3, or PC2, etc.; at the same time, the power level of its NR direct link service can be PC3, or PC2 (maximum 26 dBm), etc. The power level depends on the specific design and capabilities of the UE. In the related art, the power levels of the Uu interface, the PC5 interface, and the reported UE power level can be as shown in Table 1

[0099] Table 1

[0100]

[0101]

[0102] As shown in the above table, when NR licensed spectrum services and NR direct link services are simultaneously carried out on the same frequency band, the power level reporting method of related technologies cannot reflect the actual situation of the UE. Therefore, how to accurately report the actual power level of the UE is an urgent problem to be solved.

[0103] As Figure 2 shown, this exemplary embodiment provides an information transmission method. The information transmission method can be applied to a UE in a cellular mobile communication system and includes:

[0104] Step 201: Transmit power indication information, where the power indication information is used to indicate the UE power levels of multiple interfaces within the operating frequency band.

[0105] Here, the UE can be a mobile phone UE that performs wireless communication using cellular mobile communication technology. The access network device can be a base station that provides an access network interface to the UE in a cellular mobile communication system.

[0106] Exemplarily, the power indication information respectively indicates the UE power levels of each interface within the operating frequency band; or respectively indicates the UE power levels of each interface where the UE will operate within the operating frequency band.

[0107] Here, the UE power level can be used for the base station to determine the uplink transmission power value or the transmission power of direct link (SL, SideLink) transmission, etc.

[0108] The magnitude of the UE's uplink transmission power can be graded by power class. For example: the transmission power of power class 3 (PC3) is 23 dBm, and the transmission power of power class 2 (PC2) is 26 dBm, etc.

[0109] The UE can communicate with the peer UE and / or the base station through different interfaces within an operating frequency band. Here, different interfaces can be wireless communication channels implemented through different communication protocols. Here, the operating frequency band can be a partial bandwidth (BWP, Bandwidth Part) that is partially configured. Communication with the peer UE and / or the base station can be achieved through multiple interfaces on the operating frequency band.

[0110] In one embodiment, the interfaces include: the Uu interface and / or the direct link PC5 interface.

[0111] Exemplarily, for an operating frequency band of V2X communication, the UE can communicate with the base station through the Uu interface within an operating frequency band, and the UE can also communicate with other UEs through the PC5 interface of the direct link (SL, sidelink) within this operating frequency band.

[0112] In the related art, a UE can report a UE power level based on an operating frequency band. What the UE reports is the total UE power level of the operating frequency band, and a base station cannot determine the power levels of different interfaces based on the total UE power level of the operating frequency band.

[0113] Here, the UE power level can be the power level used by the UE when transmitting signals on each interface. The UE can report the UE power levels of multiple interfaces within the operating frequency band. An access network device determines the UE power levels of multiple interfaces based on the reported information of the UE.

[0114] The UE can send power indication information indicating the UE power levels of multiple interfaces to the base station. Here, existing uplink signaling can be used to carry the power indication information. For example, the power indication information can be carried in signaling such as Random Access Message 3 (Msg 3), Media Access Control - Control Element (MAC-CE), and Radio Resource Control (RRC). The power indication information can also be carried by dedicated uplink signaling.

[0115] The access network device can determine the UE power levels of each interface based on the power indication information in the uplink signaling. The access network device can configure power parameters, resource parameters, etc. for each interface based on the UE power levels of each interface. This reduces problems such as incorrect power parameter configuration caused by the inability to determine the UE power level of the interface.

[0116] In this way, by the UE reporting the UE power levels of multiple interfaces within the operating frequency band, the base station can determine the UE power level of each interface. This improves the accuracy of the base station in determining the UE power levels of different interfaces. Furthermore, it reduces problems such as incorrect UE power parameter configuration caused by the inability to accurately determine the UE power level of the interface.

[0117] In one embodiment, the power indication information is further used to indicate the total UE power level of the operating frequency band.

[0118] The total UE power level can be the total power level when the UE transmits signals on multiple interfaces within the operating frequency band. Since the total UE power level of the operating frequency band is not a simple accumulation of the UE power levels of multiple interfaces, situations such as the maximum transmit power of the UE, co-channel interference, and the time-domain position of transmissions on different interfaces need to be considered. The total UE power level can be the same as the UE power levels of multiple interfaces, or the total UE power level can be higher than the UE power levels of multiple interfaces. For example, if the UE power levels of two interfaces within the operating frequency band are both PC3, the total UE power level of the operating frequency band can be PC2 or PC3. Therefore, the UE can also report the total UE power level of the operating frequency band.

[0119] The UE communicates on the Uu interface and the PC5 interface simultaneously. Due to the limitation of the maximum power of the UE's radio power amplifier, the total power level of the UE in the operating frequency band is limited. For example, the total power level of the UE is PC2. If the UE communicates with the maximum power on the Uu interface and the PC5 interface simultaneously, causing the accumulated total power to exceed the power value defined by the UE total power level, the UE can reduce the total power in the operating frequency band by performing the communication on the Uu interface and the communication on the PC5 interface in a time-division manner, or by reducing the power of the Uu interface and / or the PC5 interface to a lower level, so that the total power at the same time is equal to or less than the power value defined by the UE total power level.

[0120] Exemplarily, the power indication information reported by the UE can indicate the UE power level and the total power level of the UE in the operating frequency band as shown in Table 2.

[0121] Table 2

[0122]

[0123]

[0124] In this way, by the UE reporting the UE power levels of multiple interfaces in the operating frequency band and the total power level of the UE in the operating frequency band, the base station can determine the UE power levels of each interface in the operating frequency band and the total power level of the UE. In this way, by explicitly indicating the UE power levels of multiple interfaces in the operating frequency band, the accuracy of the base station in determining the UE power level is improved, and further, the problem of parameter configuration errors caused by the inability to accurately determine the power level is reduced.

[0125] In one embodiment, as Figure 3 shown, the method further includes:

[0126] Step 202: Receive the configuration information sent by the base station based on the power indication information;

[0127] Step 203: Determine the UE power configuration parameters of at least one of the interfaces according to the configuration information.

[0128] The access network device can adjust the UE power configuration parameters of the interfaces based on the determined UE power levels of each interface and the total power level of the UE in the operating frequency band. The UE power configuration parameters can be used for but not limited to: adjusting the power of the interfaces, configuring resources such as the time domain for each interface to work, etc.

[0129] By adjusting the UE power configuration parameters, the power output of the UE can meet the actual communication requirements and comply with the communication specifications.

[0130] In one embodiment, the UE power configuration parameters include at least one of the following:

[0131] Highest configured power;

[0132] Allowed power back-off;

[0133] Specific absorption rate (SAR) regulation strategy.

[0134] The base station can configure the highest transmit power of each interface based on actual communication requirements to obtain the highest configured power. For example, an appropriate highest configured power can be configured for the UE based on requirements such as signal quality and / or power consumption.

[0135] Power back-off means that the input power of the power amplifier is backed off by a predetermined value, such as 6 - 10 dB, from the 1 dB compression point, i.e., the 1 dB gain point, so that the power amplifier operates within the linear operating region. The base station can configure the signal transmit power amplifier of the UE based on the UE power level of each interface and the total UE power level of the operating frequency band, so that the signal transmit power amplifier of the UE operates within the linear operating region.

[0136] SAR is an index in UE design that measures the radiation amount of the UE on the human body when the UE transmits wireless signals. The UE power level for signal transmission of the UE cannot exceed the radiation requirement of SAR. When multiple interfaces operate simultaneously, in some event windows, for example, when multiple interfaces communicate at the highest power simultaneously, the total UE power level may exceed the radiation requirement of SAR. The base station can adjust the SAR regulation strategy based on the determined UE power level of each interface and the total UE power level of the operating frequency band, such as adjusting the signal transmit resources of each interface to reduce the situation where the total power in the operating frequency band is too high and the UE radiation exceeds the SAR requirement. For example, the transmit time domain of each interface can be adjusted so that the transmit time domains of each interface do not overlap, thereby reducing the total UE power level of the operating frequency band.

[0137] In one embodiment, the method further includes:

[0138] Receiving a communication capability reporting request sent by the base station;

[0139] In response to the communication capability reporting request, sending communication capability information, where the communication capability information is used to indicate whether the UE is capable of performing data transmission using multiple interfaces in the operating frequency band.

[0140] Here, the communication capability may include, but is not limited to, the multi-interface communication capability of the UE.

[0141] Such as Figure 4 As shown, during the process of the base station controlling the UE to perform V2X services, the specific steps of the interaction between the base station and the UE may include:

[0142] Step 401: The base station sends a communication capability reporting request to require the UE to report the capability of simultaneously performing V2X services on the authorized spectrum.

[0143] The base station may send a communication capability reporting request before controlling the UE to perform V2X services.

[0144] Step 402: The UE reports whether it has the capability of simultaneously performing V2X services on the authorized spectrum.

[0145] After receiving the communication capability reporting request, the UE may report communication capability information to the base station, indicating the interfaces that the UE can adopt on the authorized spectrum.

[0146] Exemplarily, the base station may send a communication capability reporting request before establishing V2X communication for controlling the UE. After receiving the communication capability reporting request, the UE may report communication capability information to the base station, indicating that the UE can communicate through the Uu interface and the direct connection link PC5 interface on the authorized spectrum, that is, the operating frequency band.

[0147] Step 403: The base station configures the UE to perform V2X services through multiple interfaces on the authorized spectrum according to the capability report and the networking requirements. That is, the base station configures the Uu interface for NR communication services and the PC5 interface for SL communication services for the UE within the same authorized frequency band.

[0148] Step 404: The UE reports its total UE power level ue-PowerClass-IntraConccurent on the authorized spectrum, the UE power level ue-PowerClassPC5 on the PC5 interface, and the UE power level ue-PowerClassUu on the Uu interface. Examples of the possible reported UE power levels are shown in Table 2.

[0149] Step 405: The base station configures the corresponding power parameters for the UE according to the power levels reported by the UE. The base station configures the corresponding maximum configured power, allowable power back-off, SAR regulation strategy and other indicators for the PC5 interface and the Uu interface respectively according to the total UE power level reported by the UE, the UE power level on the PC5 interface, and the UE power level on the Uu interface.

[0150] In this way, in the V2X service, the UE completes the reporting on each interface and the total UE power level of the operating frequency band. The base station completes the power configuration of the interface based on the reported UE power level. So that the power output of the UE can meet the actual communication requirements and comply with the communication specifications.

[0151] As Figure 5 shown, this exemplary embodiment provides an information transmission method. The information transmission method can be applied to the access network device of a cellular mobile communication system, including:

[0152] Step 501: Receive the power indication information sent by the user equipment UE;

[0153] Step 502: Determine the UE power levels of multiple interfaces within the operating frequency band according to the power indication information.

[0154] Here, the UE can be a mobile phone UE that performs wireless communication using cellular mobile communication technology, etc. The access network device can be a base station that provides an access network interface to the UE in a cellular mobile communication system, etc.

[0155] Exemplarily, the power indication information respectively indicates the UE power levels of each interface within the operating frequency band; or respectively indicates the UE power levels of each interface where the UE will operate within the operating frequency band.

[0156] Here, the UE power level can be used for the base station to determine the uplink transmission power value or the transmission power of a sidelink (SL) transmission, etc.

[0157] The magnitude of the uplink transmission power of the UE can be graded by power class. For example: the transmission power of power class 3 (PC3) is 23 dBm, the transmission power of power class 2 (PC2) is 26 dBm, etc.

[0158] The UE can communicate with the peer UE and / or the base station through different interfaces within an operating frequency band. Here, different interfaces can be wireless communication channels implemented through different communication protocols. Here, the operating frequency band can be a partial bandwidth part (BWP) that is partially configured. Communication with the peer UE and / or the base station can be achieved through multiple interfaces on the operating frequency band.

[0159] In one embodiment, the interfaces include:

[0160] The Uu interface and / or the direct connection link PC5 interface.

[0161] Exemplarily, for an operating frequency band of V2X communication, the UE can communicate with the base station through the Uu interface within an operating frequency band, and the UE can also communicate with other UEs through the PC5 interface of the direct connection link within this operating frequency band.

[0162] In the related art, the UE can report the UE power level based on the operating frequency band, and what the UE reports is the total UE power level of the operating frequency band. The base station cannot determine the power levels of different interfaces according to the total UE power level of the operating frequency band.

[0163] Here, the UE power level can be the power level adopted by the UE when transmitting signals on each interface. The UE can report the UE power levels of multiple interfaces within the working frequency band. The access network device determines the UE power levels of multiple interfaces based on the reported information of the UE.

[0164] The UE can send power indication information indicating the UE power levels of multiple interfaces to the base station. Here, the existing uplink signaling can be used to carry the power indication information. For example, the power indication information can be carried in signaling such as Random Access Message 3 (Msg 3), Media Access Control-Control Element (MAC-CE), and Radio Resource Control (RRC). The power indication information can also be carried by dedicated uplink signaling.

[0165] The access network device can determine the UE power levels of each interface based on the power indication information in the uplink signaling. The access network device can configure power parameters, resource parameters, etc. for each interface based on the UE power levels of each interface. This reduces problems such as incorrect power parameter configuration caused by the inability to determine the UE power level of the interface.

[0166] In this way, by the UE reporting the UE power levels of multiple interfaces within the working frequency band, the base station can determine the UE power level of each interface. This improves the accuracy of the base station in determining the UE power levels of different interfaces. Furthermore, it reduces problems such as incorrect UE power parameter configuration caused by the inability to accurately determine the UE power level of the interface.

[0167] In one embodiment, the method further includes:

[0168] Determine the total UE power level of the working frequency band according to the power indication information.

[0169] The total UE power level can be the total power level when the UE transmits signals on multiple interfaces within the working frequency band. Since the total UE power level of the working frequency band is not a simple accumulation of the UE power levels of multiple interfaces, situations such as the maximum transmit power of the UE, co-channel interference, and the time domain position of transmissions on different interfaces need to be considered. The total UE power level can be the same as the UE power levels of multiple interfaces, or the total UE power level can be higher than the UE power levels of multiple interfaces. For example, if the UE power levels of two interfaces within the working frequency band are both PC3, the total UE power level of the working frequency band can be PC2 or PC3. Therefore, the UE can also report the total UE power level of the working frequency band.

[0170] The UE communicates on the Uu interface and the PC5 interface simultaneously. Due to the limitation of the maximum power of the UE's radio frequency power amplifier, the total power level of the UE in the operating frequency band is restricted. For example, the total power level of the UE is PC2. If the UE communicates with the maximum power on both the Uu interface and the PC5 interface simultaneously, causing the accumulated total power to exceed the power value defined by the total power level of the UE, the UE can reduce the total power in the operating frequency band by performing the communication on the Uu interface and the PC5 interface in a time-sharing manner, or by reducing the power of the Uu interface and / or the PC5 interface to a lower level, so that the total power at the same time is equal to or less than the power value defined by the total power level of the UE.

[0171] Exemplarily, the power indication information reported by the UE can indicate the UE power level and the total power level of the UE in the operating frequency band as shown in Table 2.

[0172] In this way, by the UE reporting the UE power levels of multiple interfaces in the operating frequency band and the total power level of the UE in the operating frequency band, the base station can determine the UE power levels of each interface and the total power level of the UE in the operating frequency band. In this way, by indicating the UE power levels of multiple interfaces in the operating frequency band in an explicit manner, the accuracy of the base station in determining the UE power level is improved, and further, the problem of incorrect parameter configuration caused by the inability to accurately determine the power level is reduced.

[0173] In one embodiment, the method further includes:

[0174] Determining UE power configuration parameters for at least one of the interfaces based on the power indication information;

[0175] Sending configuration information indicating the UE power configuration parameters to the UE.

[0176] The access network device can adjust the UE power configuration parameters of the interface based on the determined UE power levels of each interface and the total power level of the UE in the operating frequency band. The UE power configuration parameters can be used for, but not limited to: adjusting the power of the interface, configuring resources such as the time domain for each interface to work, etc.

[0177] By adjusting the UE power configuration parameters, the power output of the UE can meet the actual communication requirements and comply with the communication specifications.

[0178] In one embodiment, the UE power configuration parameters include at least one of the following:

[0179] Highest configured power;

[0180] Allowed power back-off;

[0181] Specific absorption rate (SAR) regulation strategy.

[0182] The base station can configure the maximum transmit power of each interface based on actual communication requirements to obtain the maximum configured power. For example, the appropriate maximum configured power can be configured for the UE based on requirements such as signal quality and / or power consumption.

[0183] Power back-off means that the input power of the power amplifier is backed off by a predetermined value, such as 6 - 10 dB, from the 1 dB compression point, i.e., the 1 dB gain point, so that the power amplifier operates within the linear operating region. The base station can configure the signal transmit power amplifier of the UE based on the UE power level of each interface and the total UE power level of the operating frequency band, so that the signal transmit power amplifier of the UE operates within the linear operating region.

[0184] SAR is an index in UE design to measure the radiation amount to the human body when the UE transmits wireless signals. The UE power level for the UE to perform signal transmission cannot exceed the radiation requirement of SAR. When multiple interfaces work simultaneously, in some event windows, for example, when multiple interfaces communicate at the maximum power simultaneously, the total UE power level may exceed the radiation requirement of SAR. The base station can adjust the SAR control strategy based on the determined UE power level of each interface and the total UE power level of the operating frequency band, such as adjusting the signal transmit resources of each interface to reduce the situation where the total power in the operating frequency band is too high and the UE radiation exceeds the SAR requirement. For example, the transmit time domain of each interface can be adjusted so that the transmit time domains of each interface do not overlap, thereby reducing the total UE power level of the operating frequency band.

[0185] In one embodiment, the method further includes:

[0186] Sending a communication capability reporting request to the UE,

[0187] Receiving the communication capability information sent by the UE in response to the communication capability reporting request;

[0188] Determining whether the UE can perform data transmission using multiple interfaces in the operating frequency band according to the communication capability information.

[0189] Here, the communication capability can include but is not limited to: the multi-interface communication capability of the UE.

[0190] Such as Figure 4 As shown, in the process of the base station controlling the UE to perform V2X services, the specific steps of interaction between the base station and the UE can include:

[0191] Step 401: The base station sends a communication capability reporting request to require the UE to report the ability to simultaneously perform V2X services on the authorized spectrum.

[0192] The base station can send a communication capability reporting request before controlling the UE to perform V2X services.

[0193] Step 402: The UE reports whether it has the ability to perform V2X services simultaneously on the authorized spectrum.

[0194] After receiving the communication capability reporting request, the UE can report communication capability information to the base station, indicating the interfaces that the UE can adopt on the authorized spectrum.

[0195] Exemplarily, the base station can send a communication capability reporting request before establishing V2X communication for controlling the UE. After receiving the communication capability reporting request, the UE can report communication capability information to the base station, indicating that the UE can communicate through the Uu interface and the direct link PC5 interface on the authorized spectrum, that is, the operating frequency band.

[0196] Step 403: The base station configures the UE to perform V2X services through multiple interfaces on the authorized spectrum according to the capability report and networking requirements. The base station configures the Uu interface for NR communication services and the PC5 interface for SL communication services for the UE within the same authorized frequency band.

[0197] Step 404: The UE reports its total UE power level ue-PowerClass-IntraConccurent on the authorized spectrum, the UE power level ue-PowerClassPC5 on the PC5 interface, and the UE power level ue-PowerClassUu on the Uu interface. Examples of the possible reported UE power levels are shown in Table 2.

[0198] Step 405: The base station configures the corresponding power parameters for the UE according to the power levels reported by the UE. The base station configures the corresponding maximum configured power, allowable power back-off, SAR regulation strategy and other indicators for the PC5 interface and the Uu interface respectively according to the total UE power level reported by the UE, the UE power level on the PC5 interface, and the UE power level on the Uu interface.

[0199] In this way, in V2X services, the UE completes the reporting on each interface and the total UE power level of the operating frequency band. The base station completes the power configuration of the interface based on the reported UE power level. This enables the power output of the UE to meet the actual communication requirements and comply with the communication specifications.

[0200] The following provides a specific example in combination with any of the above embodiments:

[0201] The UE reports whether it has the ability to perform V2X services simultaneously on the authorized spectrum.

[0202] The base station issues an instruction to the UE to simultaneously transmit V2X services on the authorized spectrum according to the ability reported by the UE and the actual networking requirements.

[0203] The UE reports the following on the same authorized frequency band:

[0204] 1, UE total power class for Intra-band Concurrent Operation.

[0205] 2, UE power class on the PC5 interface.

[0206] 3, UE power class on the Uu interface.

[0207] The network configures the maximum transmission power, power back-off and other corresponding metrics of the UE on each interface according to the UE total power class, UE power class on the PC5 interface, and UE power class on the Uu interface reported by the UE.

[0208] The interaction flowchart between the UE and the base station is as Figure 4 shown,

[0209] Embodiment 1:

[0210] Step 401: The base station sends a communication capability reporting request to require the UE to report the capability of simultaneously performing V2X services on the authorized spectrum.

[0211] Step 402: The UE reports whether it has the capability of simultaneously performing V2X services on the authorized spectrum.

[0212] Embodiment 2:

[0213] Step 403: The base station configures the UE to perform V2X services through multiple interfaces on the authorized spectrum according to the capability report and networking requirements. The base station configures the Uu interface for NR communication services and the PC5 interface for SL communication services for the UE in the same authorized frequency band according to the capabilities reported by the UE and the networking service requirements.

[0214] Embodiment 3:

[0215] Step 404: The UE reports its UE total power class ue-PowerClass-IntraConccurent on the authorized spectrum, UE power class ue-PowerClassPC5 on the PC5 interface, and UE power class ue-PowerClassUu on the Uu interface. The possible reported power classes are shown in Table 2.

[0216] Embodiment 4:

[0217] Step 405: The base station configures the corresponding power parameters of the UE according to the power classes reported by the UE. The base station configures the corresponding maximum configured power, allowable power back-off, SAR regulation strategy and other metrics for the PC5 interface and Uu interface respectively according to the UE total power class, UE power class on the PC5 interface, and UE power class on the Uu interface reported by the UE.

[0218] An embodiment of the present invention further provides an information transmission device, which is applied to a UE in wireless communication, such as Figure 6 As shown, the information transmission device 100 includes: a first transmission module 110, wherein,

[0219] The first transmission module 110 is configured to transmit power indication information, wherein the power indication information is used to indicate the UE power levels of multiple interfaces within the operating frequency band.

[0220] In one embodiment, the power indication information is further used to indicate the total UE power level of the operating frequency band.

[0221] In one embodiment, the device 100 further includes:

[0222] A first reception module 120, configured to receive configuration information sent by the base station based on the power indication information;

[0223] A first determination module 130, configured to determine UE power configuration parameters of at least one of the interfaces according to the configuration information.

[0224] In one embodiment, the UE power configuration parameters include at least one of the following:

[0225] The highest configured power;

[0226] Allowed power back-off;

[0227] Specific absorption rate (SAR) regulation strategy.

[0228] In one embodiment, the device 100 further includes:

[0229] A second reception module 140, configured to receive a communication capability reporting request sent by the base station;

[0230] A second transmission module 150, configured to send communication capability information in response to the communication capability reporting request, wherein the communication capability information is used to indicate whether the UE is capable of performing data transmission using multiple interfaces within the operating frequency band.

[0231] In one embodiment, the interface includes:

[0232] The Uu interface and / or the direct connection link PC5 interface.

[0233] An embodiment of the present invention further provides an information transmission device, which is applied to a base station in wireless communication, such as Figure 7 As shown, the information transmission device 200 includes: a third reception module 210 and a second determination module 220, wherein,

[0234] The third receiving module 210 is configured to receive power indication information sent by a user equipment UE;

[0235] The second determining module 220 is configured to determine the UE power levels of multiple interfaces within the operating frequency band according to the power indication information.

[0236] In one embodiment, the apparatus 200 further includes:

[0237] A third determining module 230 is configured to determine the total UE power level of the operating frequency band according to the power indication information.

[0238] In one embodiment, the apparatus 200 further includes:

[0239] A fourth determining module 240 is configured to determine UE power configuration parameters of at least one of the interfaces based on the power indication information;

[0240] A third sending module 250 is configured to send configuration information indicating the UE power configuration parameters to the UE.

[0241] In one embodiment, the UE power configuration parameters include at least one of the following:

[0242] The highest configured power;

[0243] Allowed power back-off;

[0244] Specific absorption rate (SAR) regulation strategy.

[0245] In one embodiment, the apparatus 200 further includes:

[0246] A fourth sending module 260 is configured to send a communication capability reporting request to the UE,

[0247] A fourth receiving module 270 is configured to receive communication capability information sent by the UE in response to the communication capability reporting request;

[0248] A fifth determining module 280 is configured to determine whether the UE is capable of performing data transmission using multiple of the interfaces within the operating frequency band according to the communication capability information.

[0249] In one embodiment, the interface includes:

[0250] The Uu interface and / or the direct link PC5 interface.

[0251] In an exemplary embodiment, the first sending module 110, the first receiving module 120, the first determining module 130, the second receiving module 140, the second sending module 150, the third receiving module 210, the second determining module 220, the third determining module 230, the fourth determining module 240, the third sending module 250, the fourth sending module 260, the fourth receiving module 270, and the fifth determining module 280, etc. can be implemented by one or more central processing units (CPUs, Central Processing Unit), graphics processing units (GPUs, Graphics Processing Unit), baseband processors (BP, baseband processor), application specific integrated circuits (ASICs, Application Specific Integrated Circuit), DSPs, programmable logic devices (PLDs, Programmable Logic Device), complex programmable logic devices (CPLDs, Complex Programmable Logic Device), field programmable gate arrays (FPGAs, Field-Programmable Gate Array), general purpose processors, controllers, microcontroller units (MCUs, Micro Controller Unit), microprocessors (Microprocessor), or other electronic components, and are used to execute the foregoing method.

[0252] Figure 8 FIG. is a block diagram of a device 3000 for information transmission according to an exemplary embodiment. For example, the device 3000 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0253] Referring to Figure 8 , the device 3000 may include one or more of the following components: a processing component 3002, a memory 3004, a power component 3006, a multimedia component 3008, an audio component 3010, an input / output (I / O) interface 3012, a sensor component 3014, and a communication component 3016.

[0254] The processing component 3002 generally controls the overall operation of the device 3000, such as operations associated with display, telephone calls, data communication, camera operations, and recording operations. The processing component 3002 may include one or more processors 3020 to execute instructions to complete all or part of the steps of the above methods. In addition, the processing component 3002 may include one or more modules to facilitate the interaction between the processing component 3002 and other components. For example, the processing component 3002 may include a multimedia module to facilitate the interaction between the multimedia component 3008 and the processing component 3002.

[0255] The memory 3004 is configured to store various types of data to support the operation of the device 3000. Examples of such data include instructions for any application or method operating on the device 3000, contact data, phone book data, messages, pictures, videos, etc. The memory 3004 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0256] The power component 3006 provides power to various components of the device 3000. The power component 3006 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 3000.

[0257] The multimedia component 3008 includes a screen that provides an output interface between the device 3000 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors can not only sense the boundaries of touch or swipe actions, but also detect the duration and pressure associated with the touch or swipe operations. In some embodiments, the multimedia component 3008 includes a front camera and / or a rear camera. When the device 3000 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each of the front camera and the rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.

[0258] The audio component 3010 is configured to output and / or input audio signals. For example, the audio component 3010 includes a microphone (MIC), which is configured to receive external audio signals when the device 3000 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals can be further stored in the memory 3004 or transmitted via the communication component 3016. In some embodiments, the audio component 3010 further includes a speaker for outputting audio signals.

[0259] The I / O interface 3012 provides an interface between the processing component 3002 and peripheral interface modules, and the peripheral interface modules may be a keyboard, a click wheel, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

[0260] The sensor component 3014 includes one or more sensors for providing status assessments of various aspects of the device 3000. For example, the sensor component 3014 can detect the on / off state of the device 3000, the relative positioning of components, such as the display and keypad of the device 3000. The sensor component 3014 can also detect a change in the position of the device 3000 or a component of the device 3000, the presence or absence of user contact with the device 3000, the orientation or acceleration / deceleration of the device 3000, and a change in the temperature of the device 3000. The sensor component 3014 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor component 3014 can also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 3014 can further include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0261] The communication component 3016 is configured to facilitate communication between the device 3000 and other devices in a wired or wireless manner. The device 3000 can access a wireless network based on communication standards, such as Wi-Fi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 3016 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 3016 further includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0262] In an exemplary embodiment, the apparatus 3000 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the above method.

[0263] In an exemplary embodiment, there is also provided a non-transitory computer-readable storage medium including instructions, such as a memory 3004 including instructions, which can be executed by a processor 3020 of the apparatus 3000 to complete the above method. For example, the non-transitory computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device, etc.

[0264] Those skilled in the art will readily conceive of other embodiments of the embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the embodiments of the present invention, which follow the general principles of the embodiments of the present invention and include common general knowledge or conventional technical means in the technical field not disclosed in the embodiments of the present disclosure. The specification and the embodiments are only to be regarded as exemplary, and the true scope and spirit of the embodiments of the present invention are pointed out by the following claims.

[0265] It should be understood that the embodiments of the present invention are not limited to the exact structures described above and shown in the drawings, and various modifications and changes may be made without departing from its scope. The scope of the embodiments of the present invention is only limited by the appended claims.

Claims

1. An information transmission method, wherein, The method is executed by a user equipment (UE), and the method includes: Sending communication capability information, where the communication capability information is used to indicate whether the UE can perform data transmission using multiple interfaces in a working frequency band; Sending power indication information, where the power indication information is used to indicate the total power level of the UE in the working frequency band; Receiving configuration information sent by a base station; and determining UE power configuration parameters of at least one of the interfaces according to the configuration information.

2. The method according to claim 1, wherein The power indication information is further used to indicate the UE power levels of multiple interfaces in the working frequency band.

3. The method according to claim 1, wherein The UE power configuration parameters include at least one of the following: Highest configured power; Allowed power back-off; Specific absorption rate (SAR) regulation strategy.

4. The method according to any one of claims 1 to 3, wherein The interfaces include: Uu interface and / or direct link PC5 interface.

5. An information transmission method, wherein, The method is executed by a base station, and the method includes: Receiving communication capability information sent by a user equipment (UE); and determining whether the UE can perform data transmission using multiple interfaces in the working frequency band according to the communication capability information; Receiving the power indication information sent by the UE; Determining the total power level of the UE in the working frequency band according to the power indication information; Sending configuration information to the UE; the configuration information is used to indicate UE power configuration parameters of at least one of the interfaces.

6. The method according to claim 5, wherein, The method further includes: Determining the UE power levels of multiple interfaces in the working frequency band according to the power indication information.

7. The method according to claim 5, wherein The UE power configuration parameters include at least one of the following: Highest configured power; Allowed power back-off; Specific absorption rate (SAR) regulation strategy.

8. The method according to any one of claims 5 to 7, wherein, The interfaces include: Uu interface and / or direct link PC5 interface.

9. An information transmission device, wherein, The apparatus includes: a second sending module, a first sending module, a first receiving module, and a first determining module, where The second sending module is configured to send communication capability information, where the communication capability information is used to indicate whether a user equipment (UE) can perform data transmission using multiple interfaces in a working frequency band; The first sending module is configured to send power indication information, where the power indication information is used to indicate the total power level of the UE in the working frequency band; The first receiving module is configured to receive configuration information sent by a base station; The first determining module is configured to determine UE power configuration parameters of at least one of the interfaces according to the configuration information.

10. The apparatus according to claim 9, wherein, The power indication information is further used to indicate the UE power levels of multiple interfaces in the working frequency band.

11. The apparatus according to claim 9, wherein, The UE power configuration parameters include at least one of the following: Highest configured power; Allowed power back-off; Specific absorption rate (SAR) regulation strategy.

12. The apparatus according to any one of claims 9 to 11, wherein, The interfaces include: Uu interface and / or direct link PC5 interface.

13. An information transmission device, wherein, The apparatus includes: a fourth receiving module, a fifth determining module, a third receiving module, a second determining module, and a third sending module, where The fourth receiving module is configured to receive communication capability information sent by a user equipment (UE); The fifth determining module is configured to determine whether the UE can perform data transmission using multiple interfaces in the working frequency band according to the communication capability information; The third receiving module is configured to receive the power indication information sent by the UE; The second determining module is configured to determine the total power level of the UE in the operating frequency band according to the power indication information; The third sending module is configured to send configuration information to the UE; the configuration information is used to indicate the UE power configuration parameters of at least one of the interfaces.

14. The apparatus according to claim 13, wherein, The apparatus further includes: A third determining module, configured to determine the UE power levels of multiple interfaces in the operating frequency band according to the power indication information.

15. The apparatus according to claim 13, wherein, The UE power configuration parameters include at least one of the following: Highest configured power; Allowed power back-off; Specific absorption rate (SAR) regulation strategy.

16. The apparatus according to any one of claims 13 to 15, wherein, The interface includes: Uu interface and / or direct link PC5 interface.

17. A communication device apparatus includes a processor, a memory, and an executable program stored on the memory and capable of being run by the processor, wherein, When the processor runs the executable program, it executes the steps of the information transmission method according to any one of claims 1 to 4 or 5 to 8.

18. A storage medium, on which an executable program is stored, wherein, When the executable program is executed by the processor, it implements the steps of the information transmission method according to any one of claims 1 to 4 or 5 to 8.

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