Information transmission method, device, communication equipment and storage medium

Abstract

The embodiments of the present disclosure relate to an information transmission method, apparatus, communication device and storage medium, wherein a user equipment (UE) sends power indication information, wherein the power indication information is used to indicate the UE power level of multiple interfaces within a working frequency band.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology but is not limited to the field of wireless communication technology, and in particular to information transmission methods, devices, communication equipment and storage media. Background Art

[0002] Vehicle to Everything (V2X) is a new generation of information and communication technology that connects vehicles to everything. V2X can provide two communication interfaces, namely Uu interface (cellular communication interface) and PC5 interface (direct link interface).

[0003] The demand for mobile communication spectrum is increasing, but the actual spectrum that can be allocated for use is gradually decreasing. For the existing authorized frequency bands, it is currently a major demand to transmit the New Radio (NR) authorized spectrum services and NR V2X services on the authorized spectrum. For terminals, it will be a very common scenario to be able to carry out NR authorized spectrum services and NR direct link services on the same frequency band at the same time. Summary of the invention

[0004] In view of this, the embodiments of the present disclosure provide an information transmission method, apparatus, communication device and storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, an information transmission method is provided, wherein the method is performed by a user equipment UE, and the method includes:

[0006] Send power indication information, wherein the power indication information is used to indicate the UE power level of multiple interfaces within the working frequency band.

[0007] In one embodiment, the power indication information is also used to indicate the UE total power level of the working frequency band.

[0008] In one embodiment, the method further comprises:

[0009] receiving configuration information sent by the base station based on the power indication information;

[0010] Determine a UE power configuration parameter of at least one of the interfaces according to the configuration information.

[0011] In one embodiment, the UE power configuration parameter includes at least one of the following:

[0012] Maximum configuration power;

[0013] Allowable power fallback;

[0014] Specific absorption rate (SAR) control strategy.

[0015] In one embodiment, the method further comprises:

[0016] Receiving a communication capability reporting request sent by a base station;

[0017] In response to the communication capability reporting request, communication capability information is sent, wherein the communication capability information is used to indicate whether the UE can use the multiple interfaces to perform data transmission in the working frequency band.

[0018] In one embodiment, the interface comprises:

[0019] Uu interface and / or direct link PC5 interface.

[0020] According to a second aspect of an embodiment of the present disclosure, an information transmission method is provided, wherein the method is executed by a base station, and the method includes:

[0021] Receiving power indication information sent by user equipment UE;

[0022] According to the power indication information, UE power levels of multiple interfaces in the working frequency band are determined.

[0023] In one embodiment, the method further comprises:

[0024] Determine the UE total power level of the working frequency band according to the power indication information.

[0025] In one embodiment, the method further comprises:

[0026] Determining a UE power configuration parameter of at least one of the interfaces based on the power indication information;

[0027] Sending configuration information indicating a power configuration parameter of the UE to the UE.

[0028] In one embodiment, the UE power configuration parameter includes at least one of the following:

[0029] Maximum configuration power;

[0030] Allowable power fallback;

[0031] Specific absorption rate (SAR) control strategy.

[0032] In one embodiment, the method further comprises:

[0033] Sending a communication capability reporting request to the UE,

[0034] receiving communication capability information sent by the UE in response to the communication capability reporting request;

[0035] It is determined, according to the communication capability information, whether the UE can use the plurality of interfaces for data transmission in the working frequency band.

[0036] In one embodiment, the interface comprises:

[0037] Uu interface and / or direct link PC5 interface.

[0038] According to a third aspect of an embodiment of the present disclosure, there is provided an information transmission device, wherein the device comprises: a first sending module, wherein:

[0039] The first sending module is configured to send power indication information, wherein the power indication information is used to indicate UE power levels of multiple interfaces within a working frequency band.

[0040] In one embodiment, the power indication information is also used to indicate the UE total power level of the working frequency band.

[0041] In one embodiment, the apparatus further comprises:

[0042] A first receiving module, configured to receive configuration information sent by the base station based on the power indication information;

[0043] The first determination module is configured to determine a UE power configuration parameter of at least one of the interfaces according to the configuration information.

[0044] In one embodiment, the UE power configuration parameter includes at least one of the following:

[0045] Maximum configuration power;

[0046] Allowable power fallback;

[0047] Specific absorption rate (SAR) control strategy.

[0048] In one embodiment, the apparatus further comprises:

[0049] A second receiving module is configured to receive a communication capability reporting request sent by the base station;

[0050] The second sending module is 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 can use multiple interfaces to perform data transmission in the working frequency band.

[0051] In one embodiment, the interface comprises:

[0052] Uu interface and / or direct link PC5 interface.

[0053] According to a fourth aspect of an embodiment of the present disclosure, an information transmission device is provided, wherein the device includes: a third receiving module and a second determining module, wherein:

[0054] The third receiving module is configured to receive power indication information sent by user equipment UE;

[0055] The second determination module is configured to determine UE power levels of multiple interfaces within a working frequency band according to the power indication information.

[0056] In one embodiment, the apparatus further comprises:

[0057] The third determination module is configured to determine the UE total power level of the working frequency band according to the power indication information.

[0058] In one embodiment, the apparatus further comprises:

[0059] a fourth determination module, configured to determine a UE power configuration parameter of at least one of the interfaces based on the power indication information;

[0060] The third sending module is configured to send configuration information indicating the UE power configuration parameter to the UE.

[0061] In one embodiment, the UE power configuration parameter includes at least one of the following:

[0062] Maximum configuration power;

[0063] Allowable power fallback;

[0064] Specific absorption rate (SAR) control strategy.

[0065] In one embodiment, the apparatus further comprises:

[0066] a fourth sending module, configured to send a communication capability reporting request to the UE,

[0067] A fourth receiving module is configured to receive the communication capability information sent by the UE in response to the communication capability reporting request;

[0068] The fifth determination module is configured to determine, based on the communication capability information, whether the UE can use the multiple interfaces to perform data transmission in the working frequency band.

[0069] In one embodiment, the interface comprises:

[0070] Uu interface and / or direct link PC5 interface.

[0071] According to a fifth aspect of an embodiment of the present disclosure, a communication device is provided, comprising a processor, a memory, and an executable program stored in the memory and capable of being run by the processor, wherein the processor executes the steps of the information transmission method described in the first aspect or the second aspect when running the executable program.

[0072] According to a sixth aspect of an embodiment of the present disclosure, a storage medium is provided, on which an executable program is stored, wherein when the executable program is executed by a processor, the steps of the information transmission method described in the first aspect or the second aspect are implemented.

[0073] According to the information transmission method, device, communication equipment and storage medium provided by the embodiments of the present disclosure, the UE sends power indication information, wherein the power indication information is used to indicate the UE power level of multiple interfaces within the working frequency band. In this way, the base station can determine the UE power level of each interface by the UE reporting the UE power level of multiple interfaces within the working frequency band. The accuracy of the base station in determining the UE power level of the interface is improved, thereby reducing the parameter configuration errors caused by the inability to determine the UE power level of the interface.

[0074] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention.

[0076] Figure 1 is a schematic structural diagram of a wireless communication system according to an exemplary embodiment;

[0077] Figure 2 is a flowchart of an information transmission method according to an exemplary embodiment;

[0078] Figure 3 is a flowchart of another information transmission method according to an exemplary embodiment;

[0079] Figure 4 is a schematic diagram of interaction between a base station and a UE according to an exemplary embodiment;

[0080] Figure 5 is a flowchart of another information transmission method according to an exemplary embodiment;

[0081] Figure 6 is a block diagram of an information transmission device according to an exemplary embodiment;

[0082] Figure 7 is a block diagram of another information transmission device according to an exemplary embodiment;

[0083] Figure 8 It is a block diagram of a device for information transmission according to an exemplary embodiment. DETAILED DESCRIPTION

[0084] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the embodiments of the present invention. Instead, 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.

[0085] The terms used in the disclosed embodiments are only for the purpose of describing specific embodiments and are not intended to limit the disclosed embodiments. The singular forms of "a", "said" and "the" used in the disclosed embodiments and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. 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 associated listed items.

[0086] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the disclosed embodiments, these 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 disclosed embodiments, 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 "at the time of" or "when" or "in response to determining".

[0087] Please refer to Figure 1 , which shows a schematic diagram of the structure of a wireless communication system provided by an embodiment of the present disclosure. Figure 1 As 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 .

[0088] 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 terminal, such as a sensor device, a mobile phone (or a "cellular" phone), and a computer with an Internet of Things terminal. For example, it can be a fixed, portable, pocket-sized, handheld, computer-built-in or vehicle-mounted device. For example, a station (STA), a subscriber unit, a subscriber station, a mobile station, a mobile station, 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, for example, it can be a driving computer with wireless communication function, or a wireless communication device connected to an external driving computer. Alternatively, the terminal 11 may also be a roadside device, for example, a street lamp, a signal lamp or other roadside device with a wireless communication function.

[0089] The base station 12 may be a network-side device in a wireless communication system. The wireless communication system may be a fourth generation mobile communication technology (4G) system, also known as a long term evolution (LTE) system; or, the wireless communication system may be a 5G system, also known as a new radio (NR) system or a 5G NR system. Alternatively, the wireless communication system may be the next generation system of the 5G system. The access network in the 5G system may be referred to as NG-RAN (New Generation-Radio Access Network). Alternatively, an MTC system.

[0090] Among them, the base station 12 can be an evolved base station (eNB) adopted in the 4G system. Alternatively, the base station 12 can also be a base station (gNB) adopting a centralized distributed architecture in the 5G system. When the base station 12 adopts a centralized distributed architecture, it usually includes a centralized unit (CU) and at least two distributed units (DU). The centralized unit is provided with a protocol stack of a packet data convergence protocol (PDCP) layer, a radio link layer control protocol (RLC) layer, and a media access control (MAC) layer; the distributed unit is provided with a physical (Physical, PHY) layer protocol stack. The specific implementation method of the base station 12 is not limited in the embodiment of the present disclosure.

[0091] A wireless connection can be established between the base station 12 and the terminal 11 through a wireless air interface. In different implementations, 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, for example, the wireless air interface is a new air interface; or, the wireless air interface can also be a wireless air interface based on the next generation mobile communication network technology standard of 5G.

[0092] In some embodiments, E2E (End to End) connections may also be established between the terminals 11, such as V2V (vehicle to vehicle) communication, V2I (vehicle to Infrastructure) communication, and V2P (vehicle to pedestrian) communication in vehicle to everything (V2X) communication.

[0093] In some embodiments, the wireless communication system may further include a network management device 13 .

[0094] Several base stations 12 are respectively connected to a network management device 13. 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 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). The implementation form of the network management device 13 is not limited in the embodiments of the present disclosure.

[0095] The execution entities involved in the embodiments of the present disclosure include, but are not limited to: UEs such as mobile phone terminals supporting cellular mobile communications, and base stations, etc.

[0096] One application scenario of the disclosed embodiment is that a terminal or other UE can report the output power of a wireless signal, such as using ue-PowerClass to report the UE output power. 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., where PC3 indicates a maximum power of 23dBm and PC2 indicates a maximum power of 26dBm. When the UE performs NR authorized spectrum services and NR direct link services on the same frequency band at the same time, the output power report is based on the power level of its authorized spectrum services, and does not take into account the power level of the NR direct link services.

[0097] For example, the power level of the authorized spectrum service on the NR Uu interface 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 26dBm), etc. The power level depends on the specific design and capabilities of the UE. In the related art, the Uu interface power level, PC5 interface power level and reported UE power level can appear as shown in Table 1

[0098] Table 1

[0099]

[0100] As shown in the table above, when NR authorized spectrum services and NR direct link services are carried out simultaneously on the same frequency band, the power level reporting method of the relevant technology 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.

[0101] like Figure 2 As shown, this exemplary embodiment provides an information transmission method, which can be applied to a UE in a cellular mobile communication system, including:

[0102] Step 201: Send power indication information, wherein the power indication information is used to indicate UE power levels of multiple interfaces within a working frequency band.

[0103] Here, the UE may be a mobile phone UE that uses cellular mobile communication technology for wireless communication, etc. The access network device may be a base station that provides an access network interface to the UE in a cellular mobile communication system, etc.

[0104] Exemplarily, the power indication information indicates the UE power level of each interface in the working frequency band respectively; or, indicates the UE power level of each interface on which the UE will work in the working frequency band respectively.

[0105] Here, the UE power level may be used by the base station to determine an uplink transmit power value or a transmit power of a straight link (SL, SideLink) transmission, and the like.

[0106] The uplink transmission power of the UE can be classified by power class. For example, the transmission power of power class 3 (PC3) is 23dBm, and the transmission power of power class 2 (PC2) is 26dBm.

[0107] The UE can communicate with the opposite UE and / or base station through different interfaces within a working frequency band. Here, different interfaces can be wireless communication channels implemented through different communication protocols. Here, the working frequency band can be a partially configured partial bandwidth (BWP, Bandwidth Part). Communication with the opposite UE and / or base station can be achieved through multiple interfaces on the working frequency band.

[0108] In one embodiment, the interface includes: a Uu interface and / or a direct link PC5 interface.

[0109] Exemplarily, for a working frequency band of V2X communication, the UE can communicate with the base station through the Uu interface within the working frequency band, and the UE can also communicate with other UEs through the PC5 interface of the direct link (SL, sidelink) within the working frequency band.

[0110] In the related technology, the UE can report the UE power level based on the working frequency band. The UE reports the UE total power level of the working frequency band. The base station cannot determine the power levels of different interfaces based on the UE total power level of the working frequency band.

[0111] Here, the UE power level may be a power level used by the UE when transmitting a signal on each interface. The UE may 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.

[0112] The UE may send power indication information indicating the power levels of multiple interfaces of the UE to the base station. Here, the power indication information may be carried by existing uplink signaling. For example, the power indication information may be carried in random access message 3 (Msg 3), media access control-control element (MAC-CE), radio resource control (RRC) and other signaling. The power indication information may also be carried by dedicated uplink signaling.

[0113] The access network device can determine the UE power level 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 level of each interface. This reduces the problem of power parameter configuration errors caused by the inability to determine the UE power level of the interface.

[0114] In this way, the base station can determine the UE power level of each interface by the UE reporting the UE power level of multiple interfaces in the working frequency band. This improves the accuracy of the base station in determining the UE power level of different interfaces. This reduces the problems such as UE power parameter configuration errors caused by the inability to accurately determine the UE power level of the interface.

[0115] In one embodiment, the power indication information is also used to indicate the UE total power level of the working frequency band.

[0116] The UE total power level can be the total power level of the UE when transmitting signals on multiple interfaces in the working frequency band. Since the UE total power level of the working frequency band is not a simple accumulation of the UE power levels of multiple interfaces, it is necessary to consider the UE's maximum transmit power, co-channel interference, time domain position of transmissions on different interfaces, and other conditions. The UE total power level can be the same as the UE power level of multiple interfaces, and the UE total power level can be higher than the UE power level of multiple interfaces. For example, the UE power levels of the two interfaces in the working frequency band are both PC3, and the UE total power level of the working frequency band can be PC2 or PC3. Therefore, the UE can also report the UE total power level of the working frequency band.

[0117] The UE communicates on the Uu interface and the PC5 interface at the same time. Due to the limitation of the maximum power of the UE's wireless power amplifier, the UE's total power level in the working frequency band is limited, for example, the UE's total power level is PC2. If the UE uses the respective maximum powers to communicate on the Uu interface and the PC5 interface at the same time, so that the accumulated total power exceeds the power value defined by the UE's total power level, the UE can reduce the total power of the working frequency band by time-sharing the communication of the Uu interface and the communication of the PC5 interface, or by reverting 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's total power level.

[0118] Exemplarily, the power indication information reported by the UE may indicate the UE power level and the UE total power level of the working frequency band as shown in Table 2.

[0119] Table 2

[0120]

[0121] In this way, the base station can determine the UE power level of each interface in the working frequency band and the UE total power level by the UE reporting the UE power level of multiple interfaces in the working frequency band and the UE total power level of the working frequency band. In this way, by indicating the UE power level of multiple interfaces in the working frequency band in an explicit manner, the accuracy of the base station in determining the UE power level is improved, thereby reducing the problem of parameter configuration errors caused by the inability to accurately determine the power level.

[0122] In one embodiment, Figure 3 As shown, the method also includes:

[0123] Step 202: receiving configuration information sent by the base station based on the power indication information;

[0124] Step 203: Determine a UE power configuration parameter of at least one of the interfaces according to the configuration information.

[0125] The access network device can adjust the UE power configuration parameters of the interface based on the determined UE power level of each interface and the UE total power level of the working frequency band. The UE power configuration parameters can be used for, but not limited to: adjusting the power of the interface, configuring the time domain and other resources of each interface, etc.

[0126] By adjusting the UE power configuration parameters, the UE power output can meet the actual communication needs and comply with the communication specifications.

[0127] In one embodiment, the UE power configuration parameter includes at least one of the following:

[0128] Maximum configuration power;

[0129] Allowable power fallback;

[0130] Specific absorption rate (SAR) control strategy.

[0131] The base station may configure the maximum transmit power of each interface based on actual communication requirements to obtain the maximum configured power. For example, the base station may configure an appropriate maximum configured power for the UE based on signal quality and / or power consumption requirements.

[0132] Power backoff means backing off the input power of the power amplifier from the 1dB compression point, i.e., the 1dB gain point, to a predetermined value, such as 6 to 10dB, so that the power amplifier remains in the linear working area. The base station can configure the UE's signal transmission power amplifier based on the UE power level of each interface and the UE total power level of the working frequency band, so that the UE's signal transmission power amplifier remains in the linear working area.

[0133] SAR is an indicator in UE design that measures the amount of radiation to 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 are working at the same time, in certain event windows, for example, when multiple interfaces are communicating at the highest power at the same time, 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 working frequency band, such as adjusting the signal transmission resources of each interface to reduce the situation where the total power in the working frequency band is too high and the UE radiation exceeds the SAR requirement. For example, the transmission time domain of each interface can be adjusted so that the transmission time domain of each interface does not overlap, thereby reducing the total UE power level of the working frequency band.

[0134] In one embodiment, the method further comprises:

[0135] Receiving a communication capability reporting request sent by a base station;

[0136] In response to the communication capability reporting request, communication capability information is sent, wherein the communication capability information is used to indicate whether the UE can use the multiple interfaces to perform data transmission in the working frequency band.

[0137] Here, the communication capability may include but is not limited to: the multi-interface communication capability of the UE.

[0138] like Figure 4 As shown, during the process of the base station controlling the UE to perform the V2X service, the specific steps of the base station and the UE interacting may include:

[0139] Step 401: The base station sends a communication capability reporting request to request the UE to report its capability of simultaneously performing V2X services on the authorized spectrum.

[0140] The base station may send a communication capability reporting request before controlling the UE to perform V2X services.

[0141] Step 402: The UE reports whether it has the capability to simultaneously carry out V2X services on the licensed spectrum.

[0142] After receiving the communication capability reporting request, the UE may report the communication capability information to the base station, indicating the interface that the UE may adopt on the authorized spectrum.

[0143] Exemplarily, the base station may send a communication capability reporting request before establishing V2X communication to control the UE. After receiving the communication capability reporting request, the UE may report communication capability information to the base station, indicating that the UE may communicate through the Uu interface and the direct link PC5 interface on the authorized spectrum, i.e., the working frequency band.

[0144] 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. That is, the base station configures the Uu interface for the UE to perform NR communication services and the PC5 interface for SL communication services in the same authorized frequency band.

[0145] Step 404: The UE reports its total UE power class ue-PowerClass-IntraConccurent on the licensed spectrum, the UE power class ue-PowerClassPC5 on the PC5 interface, and the UE power class ue-PowerClassUu on the Uu interface. Examples of UE power classes that may be reported are shown in Table 2.

[0146] Step 405: The base station configures the power parameters of the UE response according to the power level reported by the UE. The base station configures the corresponding maximum configuration power, allowable power fallback, SAR control strategy and other indicators for the PC5 interface and the Uu interface 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.

[0147] In this way, in the V2X service, the UE completes the reporting of the total UE power level of each interface and the working frequency band. The base station completes the power configuration of the interface based on the reported UE power level, so that the UE power output can meet the actual communication needs and comply with the communication specifications.

[0148] like Figure 5 As shown, this exemplary embodiment provides an information transmission method, which can be applied to an access network device of a cellular mobile communication system, including:

[0149] Step 501: receiving power indication information sent by user equipment UE;

[0150] Step 502: Determine UE power levels of multiple interfaces within the working frequency band according to the power indication information.

[0151] Here, the UE may be a mobile phone UE that uses cellular mobile communication technology for wireless communication, etc. The access network device may be a base station that provides an access network interface to the UE in a cellular mobile communication system, etc.

[0152] Exemplarily, the power indication information indicates the UE power level of each interface in the working frequency band respectively; or, indicates the UE power level of each interface on which the UE will work in the working frequency band respectively.

[0153] Here, the UE power level may be used by the base station to determine an uplink transmit power value or a transmit power of a straight link (SL, SideLink) transmission, and the like.

[0154] The uplink transmission power of the UE can be classified by power class. For example, the transmission power of power class 3 (PC3) is 23dBm, and the transmission power of power class 2 (PC2) is 26dBm.

[0155] The UE can communicate with the opposite UE and / or base station through different interfaces within a working frequency band. Here, different interfaces can be wireless communication channels implemented through different communication protocols. Here, the working frequency band can be a partially configured partial bandwidth (BWP, Bandwidth Part). Communication with the opposite UE and / or base station can be achieved through multiple interfaces on the working frequency band.

[0156] In one embodiment, the interface comprises:

[0157] Uu interface and / or direct link PC5 interface.

[0158] Exemplarily, for a working frequency band of V2X communication, the UE can communicate with the base station through the Uu interface within the working frequency band, and the UE can also communicate with other UEs through the PC5 interface of the direct link within the working frequency band.

[0159] In the related technology, the UE can report the UE power level based on the working frequency band. The UE reports the UE total power level of the working frequency band. The base station cannot determine the power levels of different interfaces based on the UE total power level of the working frequency band.

[0160] Here, the UE power level may be a power level used by the UE when transmitting a signal on each interface. The UE may 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.

[0161] The UE may send power indication information indicating the power levels of multiple interfaces of the UE to the base station. Here, the power indication information may be carried by existing uplink signaling. For example, the power indication information may be carried in random access message 3 (Msg 3), media access control-control element (MAC-CE), radio resource control (RRC) and other signaling. The power indication information may also be carried by dedicated uplink signaling.

[0162] The access network device can determine the UE power level 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 level of each interface. This reduces the problem of power parameter configuration errors caused by the inability to determine the UE power level of the interface.

[0163] In this way, the base station can determine the UE power level of each interface by the UE reporting the UE power level of multiple interfaces in the working frequency band. This improves the accuracy of the base station in determining the UE power level of different interfaces. This reduces the problems such as UE power parameter configuration errors caused by the inability to accurately determine the UE power level of the interface.

[0164] In one embodiment, the method further comprises:

[0165] Determine the UE total power level of the working frequency band according to the power indication information.

[0166] The UE total power level can be the total power level of the UE when transmitting signals on multiple interfaces in the working frequency band. Since the UE total power level of the working frequency band is not a simple accumulation of the UE power levels of multiple interfaces, it is necessary to consider the maximum transmit power of the UE, co-channel interference, time domain position of transmissions on different interfaces, etc. The UE total power level can be the same as the UE power level of multiple interfaces, and the UE total power level can be higher than the UE power level of multiple interfaces. For example, the UE power levels of the two interfaces in the working frequency band are both PC3, and the UE total power level of the working frequency band can be PC2 or PC3. Therefore, the UE can also report the UE total power level of the working frequency band.

[0167] The UE communicates on the Uu interface and the PC5 interface at the same time. Due to the limitation of the maximum power of the UE's wireless power amplifier, the UE's total power level in the working frequency band is limited, for example, the UE's total power level is PC2. If the UE uses the respective maximum powers to communicate on the Uu interface and the PC5 interface at the same time, so that the accumulated total power exceeds the power value defined by the UE's total power level, the UE can reduce the total power of the working frequency band by time-sharing the communication of the Uu interface and the communication of the PC5 interface, or by reverting 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's total power level.

[0168] Exemplarily, the power indication information reported by the UE may indicate the UE power level and the UE total power level of the working frequency band as shown in Table 2.

[0169] In this way, the base station can determine the UE power level of each interface in the working frequency band and the UE total power level by the UE reporting the UE power level of multiple interfaces in the working frequency band and the UE total power level of the working frequency band. In this way, by indicating the UE power level of multiple interfaces in the working frequency band in an explicit manner, the accuracy of the base station in determining the UE power level is improved, thereby reducing the problem of parameter configuration errors caused by the inability to accurately determine the power level.

[0170] In one embodiment, the method further comprises:

[0171] Determining a UE power configuration parameter of at least one of the interfaces based on the power indication information;

[0172] Sending configuration information indicating a power configuration parameter of the UE to the UE.

[0173] The access network device can adjust the UE power configuration parameters of the interface based on the determined UE power level of each interface and the UE total power level of the working frequency band. The UE power configuration parameters can be used for, but not limited to: adjusting the power of the interface, configuring the time domain and other resources of each interface, etc.

[0174] By adjusting the UE power configuration parameters, the UE power output can meet the actual communication needs and comply with the communication specifications.

[0175] In one embodiment, the UE power configuration parameter includes at least one of the following:

[0176] Maximum configuration power;

[0177] Allowable power fallback;

[0178] Specific absorption rate (SAR) control strategy.

[0179] The base station may configure the maximum transmit power of each interface based on actual communication requirements to obtain the maximum configured power. For example, the base station may configure an appropriate maximum configured power for the UE based on signal quality and / or power consumption requirements.

[0180] Power backoff means backing off the input power of the power amplifier from the 1dB compression point, i.e., the 1dB gain point, to a predetermined value, such as 6 to 10dB, so that the power amplifier remains in the linear working area. The base station can configure the UE's signal transmission power amplifier based on the UE power level of each interface and the UE total power level of the working frequency band, so that the UE's signal transmission power amplifier remains in the linear working area.

[0181] SAR is an indicator in UE design that measures the amount of radiation to 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 are working at the same time, in certain event windows, for example, when multiple interfaces are communicating at the highest power at the same time, 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 working frequency band, such as adjusting the signal transmission resources of each interface to reduce the situation where the total power in the working frequency band is too high and the UE radiation exceeds the SAR requirement. For example, the transmission time domain of each interface can be adjusted so that the transmission time domain of each interface does not overlap, thereby reducing the total UE power level of the working frequency band.

[0182] In one embodiment, the method further comprises:

[0183] Sending a communication capability reporting request to the UE,

[0184] receiving communication capability information sent by the UE in response to the communication capability reporting request;

[0185] It is determined, according to the communication capability information, whether the UE can use the plurality of interfaces for data transmission in the working frequency band.

[0186] Here, the communication capability may include but is not limited to: the multi-interface communication capability of the UE.

[0187] like Figure 4 As shown, during the process of the base station controlling the UE to perform the V2X service, the specific steps of the base station and the UE interacting may include:

[0188] Step 401: The base station sends a communication capability reporting request to request the UE to report its capability of simultaneously performing V2X services on the authorized spectrum.

[0189] The base station may send a communication capability reporting request before controlling the UE to perform V2X services.

[0190] Step 402: The UE reports whether it has the capability to simultaneously carry out V2X services on the licensed spectrum.

[0191] After receiving the communication capability reporting request, the UE may report the communication capability information to the base station, indicating the interface that the UE may adopt on the authorized spectrum.

[0192] Exemplarily, the base station may send a communication capability reporting request before establishing V2X communication to control the UE. After receiving the communication capability reporting request, the UE may report communication capability information to the base station, indicating that the UE may communicate through the Uu interface and the direct link PC5 interface on the authorized spectrum, i.e., the working frequency band.

[0193] 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 the UE to perform NR communication services and the PC5 interface for SL communication services in the same authorized frequency band.

[0194] Step 404: The UE reports its total UE power class ue-PowerClass-IntraConccurent on the licensed spectrum, the UE power class ue-PowerClassPC5 on the PC5 interface, and the UE power class ue-PowerClassUu on the Uu interface. Examples of UE power classes that may be reported are shown in Table 2.

[0195] Step 405: The base station configures the power parameters of the UE response according to the power level reported by the UE. The base station configures the corresponding maximum configuration power, allowable power fallback, SAR control strategy and other indicators for the PC5 interface and the Uu interface 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.

[0196] In this way, in the V2X service, the UE completes the reporting of the total UE power level of each interface and the working frequency band. The base station completes the power configuration of the interface based on the reported UE power level, so that the UE power output can meet the actual communication needs and comply with the communication specifications.

[0197] A specific example is provided below in combination with any of the above embodiments:

[0198] The UE reports whether it has the capability to conduct V2X services simultaneously on the licensed spectrum.

[0199] Based on the capabilities reported by the UE and actual networking requirements, the base station issues instructions to the UE to require it to transmit V2X services simultaneously on the authorized spectrum.

[0200] The UE reports its:

[0201] 1. UE total power level for Intra-band Concurrent Operation.

[0202] 2. UE power level on PC5 interface.

[0203] 3. UE power level on the Uu interface.

[0204] The network configures the maximum transmission power, power fallback and other corresponding indicators of the UE on each interface according to the UE total power level reported by the UE, the UE power level on the PC5 interface, and the UE power level on the Uu interface.

[0205] The flow chart of interaction between UE and base station is as follows: Figure 4 As shown,

[0206] Embodiment 1:

[0207] Step 401: The base station sends a communication capability reporting request to request the UE to report its capability of simultaneously performing V2X services on the authorized spectrum.

[0208] Step 402: The UE reports whether it has the capability to simultaneously carry out V2X services on the licensed spectrum.

[0209] Embodiment 2:

[0210] Step 403: The base station configures the UE to perform V2X services through multiple interfaces on the authorized spectrum according to the capability reported and networking requirements. The base station configures the Uu interface for the UE to perform NR communication services and the PC5 interface for SL communication services in the same authorized frequency band according to the capabilities reported by the UE and networking service requirements.

[0211] Embodiment 3:

[0212] Step 404: The UE reports its total UE power class ue-PowerClass-IntraConccurent on the licensed spectrum, the UE power class ue-PowerClassPC5 on the PC5 interface, and the UE power class ue-PowerClassUu on the Uu interface. The power classes that may be reported are shown in Table 2.

[0213] Embodiment 4:

[0214] Step 405: The base station configures the power parameters of the UE response according to the power level reported by the UE. The base station configures the corresponding maximum configuration power, allowable power fallback, SAR control strategy and other indicators for the PC5 interface and the Uu interface 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.

[0215] The embodiment of the present invention further provides an information transmission device, which is applied to a UE of wireless communication, such as Figure 6 As shown, the information transmission device 100 includes: a first sending module 110, wherein:

[0216] The first sending module 110 is configured to send power indication information, wherein the power indication information is used to indicate UE power levels of multiple interfaces within a working frequency band.

[0217] In one embodiment, the power indication information is also used to indicate the UE total power level of the working frequency band.

[0218] In one embodiment, the apparatus 100 further includes:

[0219] A first receiving module 120, configured to receive configuration information sent by the base station based on the power indication information;

[0220] The first determination module 130 is configured to determine a UE power configuration parameter of at least one of the interfaces according to the configuration information.

[0221] In one embodiment, the UE power configuration parameter includes at least one of the following:

[0222] Maximum configuration power;

[0223] Allowable power fallback;

[0224] Specific absorption rate (SAR) control strategy.

[0225] In one embodiment, the apparatus 100 further includes:

[0226] The second receiving module 140 is configured to receive a communication capability reporting request sent by the base station;

[0227] The second sending module 150 is 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 can use the multiple interfaces to perform data transmission in the working frequency band.

[0228] In one embodiment, the interface comprises:

[0229] Uu interface and / or direct link PC5 interface.

[0230] The embodiment of the present invention further provides an information transmission device, which is applied to a base station of wireless communication, such as Figure 7 As shown, the information transmission device 200 includes: a third receiving module 210 and a second determining module 220, wherein:

[0231] The third receiving module 210 is configured to receive power indication information sent by a user equipment UE;

[0232] The second determination module 220 is configured to determine UE power levels of multiple interfaces within a working frequency band according to the power indication information.

[0233] In one embodiment, the apparatus 200 further includes:

[0234] The third determination module 230 is configured to determine the UE total power level of the working frequency band according to the power indication information.

[0235] In one embodiment, the apparatus 200 further includes:

[0236] The fourth determination module 240 is configured to determine a UE power configuration parameter of at least one of the interfaces based on the power indication information;

[0237] The third sending module 250 is configured to send configuration information indicating the UE power configuration parameter to the UE.

[0238] In one embodiment, the UE power configuration parameter includes at least one of the following:

[0239] Maximum configuration power;

[0240] Allowable power fallback;

[0241] Specific absorption rate (SAR) control strategy.

[0242] In one embodiment, the apparatus 200 further includes:

[0243] The fourth sending module 260 is configured to send a communication capability reporting request to the UE,

[0244] The fourth receiving module 270 is configured to receive the communication capability information sent by the UE in response to the communication capability reporting request;

[0245] The fifth determination module 280 is configured to determine, based on the communication capability information, whether the UE can use the multiple interfaces to perform data transmission in the working frequency band.

[0246] In one embodiment, the interface comprises:

[0247] Uu interface and / or direct link PC5 interface.

[0248] 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 can be implemented by one or more central processing units (CPUs), graphics processing units (GPUs), baseband processors (BPs), application specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers (MCUs), microprocessors, or other electronic components to execute the aforementioned method.

[0249] Figure 8 3000 is a block diagram of an apparatus 3000 for information transmission according to an exemplary embodiment. For example, the apparatus 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.

[0250] Reference 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 .

[0251] The processing component 3002 generally controls the overall operation of the device 3000, such as operations associated with display, phone calls, data communications, 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-mentioned method. 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.

[0252] The memory 3004 is configured to store various types of data to support operations on 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.

[0253] The power supply component 3006 provides power to the various components of the device 3000. The power supply 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.

[0254] 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 may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. 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 may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0255] The audio component 3010 is configured to output and / or input audio signals. For example, the audio component 3010 includes a microphone (MIC), and when the device 3000 is in an operating mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 3004 or sent via the communication component 3016. In some embodiments, the audio component 3010 also includes a speaker for outputting audio signals.

[0256] I / O interface 3012 provides an interface between processing component 3002 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: home button, volume button, start button, and lock button.

[0257] The sensor assembly 3014 includes one or more sensors for providing various aspects of status assessment for the device 3000. For example, the sensor assembly 3014 can detect the open / closed state of the device 3000, the relative positioning of components, such as the display and keypad of the device 3000, the sensor assembly 3014 can also detect the position change 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 the temperature change of the device 3000. The sensor assembly 3014 can include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 3014 can also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 3014 can also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.

[0258] The communication component 3016 is configured to facilitate wired or wireless communication between the device 3000 and other devices. The device 3000 can access a wireless network based on a communication standard, 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 also 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.

[0259] 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 to perform the above method.

[0260] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 3004 including instructions, and the instructions can be executed by the processor 3020 of the device 3000 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0261] Those skilled in the art will readily appreciate other implementations 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 that follow the general principles of the embodiments of the present invention and include common knowledge or customary technical means in the art that are not disclosed in the embodiments of the present disclosure. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the embodiments of the present invention are indicated by the following claims.

[0262] It should be understood that the embodiments of the present invention are not limited to the precise structures described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the embodiments of the present invention is limited only by the appended claims.

Claims

1. A method for transmitting information, wherein: The method is performed by a user equipment UE, and the method includes: Send power indication information, wherein the power indication information is used to indicate the UE power level of multiple interfaces in the same working frequency band and the UE total power level of the working frequency band; the working frequency band is the frequency band in which the UE simultaneously performs the new air interface NR authorized spectrum service and the NR direct link service; The method further comprises: Receiving a communication capability reporting request sent by a base station; In response to the communication capability reporting request, sending communication capability information, wherein the communication capability information is used to indicate whether the UE can communicate simultaneously using multiple interfaces in the same working frequency band; receiving configuration information sent by a base station; Determine a UE power configuration parameter of at least one of the interfaces according to the configuration information.

2. The method according to claim 1, wherein: The UE power configuration parameter includes at least one of the following: Maximum configuration power; Allowable power fallback; Specific absorption rate (SAR) control strategy.

3. The method according to claim 1 or 2, wherein: The interface comprises: Uu interface and / or direct link PC5 interface.

4. A method for transmitting information, wherein: The method is performed by a base station, and the method includes: Receiving power indication information sent by user equipment UE; Determine, according to the power indication information, UE power levels of multiple interfaces in the same working frequency band and the UE total power level of the working frequency band; the working frequency band is a frequency band in which the UE simultaneously performs a new air interface NR authorized spectrum service and an NR direct link service; The method further comprises: Sending a communication capability reporting request to the UE, receiving communication capability information sent by the UE in response to the communication capability reporting request; Determining, according to the communication capability information, whether the UE can communicate simultaneously using multiple interfaces in the same working frequency band; determining a UE power configuration parameter for at least one of the interfaces; Sending configuration information indicating a power configuration parameter of the UE to the UE.

5. The method according to claim 4, wherein: The UE power configuration parameter includes at least one of the following: Maximum configuration power; Allowable power fallback; Specific absorption rate (SAR) control strategy.

6. The method according to claim 4 or 5, wherein: The interface comprises: Uu interface and / or direct link PC5 interface.

7. An information transmission device, wherein: The device comprises: A first sending module is configured to send power indication information, wherein the power indication information is used to indicate UE power levels of multiple interfaces in the same working frequency band and the UE total power level of the working frequency band; the working frequency band is a frequency band in which the UE simultaneously performs a new air interface NR authorized spectrum service and an NR direct link service; A second receiving module is configured to receive a communication capability reporting request sent by the base station; A second sending module is 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 can use multiple interfaces to communicate simultaneously in the same working frequency band; A first receiving module, configured to receive configuration information sent by a base station; The first determination module is configured to determine a UE power configuration parameter of at least one of the interfaces according to the configuration information.

8. The device according to claim 7, wherein: The UE power configuration parameter includes at least one of the following: Maximum configuration power; Allowable power fallback; Specific absorption rate (SAR) control strategy.

9. The device according to claim 7 or 8, wherein: The interface comprises: Uu interface and / or direct link PC5 interface.

10. An information transmission device, wherein: The device comprises: A third receiving module is configured to receive power indication information sent by user equipment UE; The second determination module is configured to determine, according to the power indication information, UE power levels of multiple interfaces in the same working frequency band; the working frequency band is a frequency band in which the UE simultaneously performs a new air interface NR authorized spectrum service and an NR direct link service; A third determination module is configured to determine a UE total power level of the working frequency band according to the power indication information; a fourth sending module, configured to send a communication capability reporting request to the UE, A fourth receiving module is configured to receive the communication capability information sent by the UE in response to the communication capability reporting request; a fifth determination module, configured to determine, according to the communication capability information, whether the UE can communicate simultaneously using multiple interfaces in the same working frequency band; a fourth determination module, configured to determine a UE power configuration parameter of at least one of the interfaces; The third sending module is configured to send configuration information indicating the UE power configuration parameter to the UE.

11. The device according to claim 10, wherein: The UE power configuration parameter includes at least one of the following: Maximum configuration power; Allowable power fallback; Specific absorption rate (SAR) control strategy.

12. The device according to claim 10 or 11, wherein: The interface comprises: Uu interface and / or direct link PC5 interface.

13. A communication device, comprising a processor, a memory, and an executable program stored in the memory and capable of being run by the processor, wherein: When the processor runs the executable program, the processor performs the steps of the information transmission method according to any one of claims 1 to 3 or 4 to 6.

14. A storage medium having an executable program stored thereon, wherein: When the executable program is executed by a processor, the steps of the information transmission method according to any one of claims 1 to 3 or 4 to 6 are implemented.

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