Information transmission method, apparatus, communication device and storage medium

Abstract

SUMMARY OF THE DISCLOSURE An embodiment of the present disclosure relates to an information transmission method, apparatus, communication device, and storage medium, in which a user equipment (UE) transmits power indication information for indicating a UE power class of multiple interfaces within an operating frequency band.

Description

[Technical field]

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

[0002] Vehicle to Everything (V2X) is a next-generation information and communication technology that connects vehicles to everything. V2X can provide two types of communication interfaces, called the Uu interface (cellular communication interface) and the PC5 interface (sidelink interface).

[0003] The need for mobile communication spectrum is increasing day by day, but the actual spectrum available for allocation is gradually decreasing, and for existing licensed frequency bands, there is currently a great need to simultaneously transmit New Radio (NR) licensed spectrum services and NR V2X services in licensed spectrum. For terminals, it is becoming a very common scenario that NR licensed spectrum services and NR sidelink services can be performed simultaneously in the same frequency band. Summary of the Invention [Problem to be solved by the invention]

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

[0005] According to a first aspect of an embodiment of the present disclosure, there is provided an information transmission method performed by a user equipment (UE), the method comprising: Transmitting power indication information to indicate a UE power class of a plurality of interfaces within the operating frequency band is included.

[0006] In one embodiment, the power indication information is further used to indicate a UE total power class for the operating frequency band.

[0007] In one embodiment, the method further comprises: receiving configuration information transmitted by a base station based on the power indication information; determining a UE power configuration parameter for at least one of the interfaces based on the configuration information.

[0008] In one embodiment, the UE power configuration parameters include: Maximum power setting and Allowed power rollback and and a specific absorption rate (SAR) control strategy.

[0009] In one embodiment, the method further comprises: receiving a communication capability report request transmitted from a base station; The method further includes a step of transmitting communication capability information in response to the communication capability report request, the communication capability information being used to indicate whether the UE is capable of data transmission using multiple interfaces in the operating frequency band.

[0010] In one embodiment, the interface comprises: Includes a Uu interface and / or a sidelink PC5 interface.

[0011] According to a second aspect of an embodiment of the present disclosure, there is provided an information transmission method performed by a base station, the method comprising: receiving power indication information transmitted from a user equipment (UE); and determining a UE power class for a plurality of interfaces within an operating frequency band based on the power indication information.

[0012] In one embodiment, the method further comprises: The method further includes determining a UE total power class for the operating frequency band based on the power indication information.

[0013] In one embodiment, the method further comprises: determining a UE power configuration parameter for at least one of said interfaces based on said power indication information; and transmitting configuration information to the UE indicating the UE power configuration parameters.

[0014] In one embodiment, the UE power configuration parameters include: The maximum power setting, Allowed power rollback; and a specific absorption rate (SAR) control strategy.

[0015] In one embodiment, the method further comprises: sending a communication capability report request to the UE; receiving communication capability information transmitted by the UE in response to the communication capability report request; The method further includes determining, based on the communication capability information, whether the UE is capable of data transmission using a plurality of the interfaces in the operating frequency band.

[0016] In one embodiment, the interface comprises: Includes a Uu interface and / or a sidelink PC5 interface.

[0017] According to a third exemplary aspect of the present disclosure, there is provided an information transmission device, the device including: a first sending module; The first transmitting module is configured to transmit power indication information for indicating a UE power class of a plurality of interfaces within an operating frequency band.

[0018] In one embodiment, the power indication information is further used to indicate a UE total power class for the operating frequency band.

[0019] In one embodiment, the apparatus comprises: a first receiving module configured to receive setting information sent by a base station based on the power indication information; and a first determining module configured to determine a UE power configuration parameter of at least one of the interfaces based on the configuration information.

[0020] In one embodiment, the UE power configuration parameters include: The maximum power setting, Allowed power rollback; and a specific absorption rate (SAR) control strategy.

[0021] In one embodiment, the apparatus comprises: A second receiving module configured to receive a communication capability report request sent from a base station; and a second transmitting module configured to transmit communication capability information in response to the communication capability report request, the communication capability information being used to indicate whether the UE is capable of data transmission using a plurality of the interfaces in the operating frequency band.

[0022] In one embodiment, the interface comprises: Includes a Uu interface and / or a sidelink PC5 interface.

[0023] According to a fourth aspect of an embodiment of the present disclosure, there is provided an information transmission device, the device including: a third receiving module and a second determining module; The third receiving module is configured to receive power indication information transmitted from a user equipment (UE); The second determining module is configured to determine a UE power class of a plurality of interfaces within an operating frequency band based on the power indication information.

[0024] In one embodiment, the apparatus comprises: The method further includes: determining a UE total power class for the operating frequency band based on the power indication information.

[0025] In one embodiment, the apparatus comprises: a fourth determining module configured to determine a UE power setting parameter of at least one of the interfaces based on the power indication information; and a third sending module configured to send configuration information to the UE indicating the UE power configuration parameters.

[0026] In one embodiment, the UE power configuration parameters include: The maximum power setting, Allowed power rollback; and a specific absorption rate (SAR) control strategy.

[0027] In one embodiment, the apparatus comprises: a fourth sending module configured to send a communication capability report request to the UE; a fourth receiving module configured to receive communication capability information transmitted by a UE in response to the communication capability report request; and a fifth determination module configured to determine, based on the communication capability information, whether the UE is capable of data transmission using the multiple interfaces in the operating frequency band.

[0028] In one embodiment, the interface comprises: Includes a Uu interface and / or a sidelink PC5 interface.

[0029] According to a fifth aspect of an embodiment of the present disclosure, there is provided a communication device, the communication device including a processor, a memory, and an executable program stored in the memory and executed by the processor, and when the processor executes the executable program, the communication device performs steps of the information transmission method described in the first or second aspect.

[0030] According to a sixth aspect of an embodiment of the present disclosure, there is provided a storage medium having an executable program stored thereon, the executable program realizing the steps of the information transmission method described in the first or second aspect when executed by a processor. Effect of the Invention

[0031] According to the information transmission method, apparatus, communication device, and storage medium provided by the embodiments of the present disclosure, the UE transmits power indication information for indicating the UE power classes of multiple interfaces in the operating frequency band. In this manner, the UE reports the UE power classes of multiple interfaces in the operating frequency band, so that the base station can determine the UE power class of each interface. This improves the accuracy of the base station in determining the UE power class of the interface, and further reduces parameter setting errors caused by the inability to determine the UE power class of the interface.

[0032] It should be noted that the above general description and the following detailed description are merely exemplary and explanatory and are not intended to limit the embodiments of the present disclosure. [Brief description of the drawings]

[0033] The drawings herein, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention consistent with the present disclosure and, together with the specification, serve to explain the principles of embodiments of the invention. [Figure 1] 1 is a schematic diagram of a wireless communication system according to an exemplary embodiment; [Diagram 2]1 is a schematic flow chart of an information transmission method according to an exemplary embodiment. [Diagram 3] 10 is a schematic flow chart of another information transmission method illustrated by an exemplary embodiment. [Figure 4] FIG. 2 is a schematic diagram of interaction between a base station and a UE according to an exemplary embodiment; [Diagram 5] 10 is a schematic flow chart of another information transmission method according to an exemplary embodiment. [Figure 6] 1 is a block diagram of an information transmission device according to an exemplary embodiment; [Figure 7] FIG. 2 is a block diagram of another information transmission device according to an exemplary embodiment; [Figure 8] FIG. 2 is a block diagram of an apparatus for use in transmitting information according to an exemplary embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0034] Exemplary embodiments will now be described in detail, examples of which are illustrated in the drawings. Where the following description refers to the drawings, the same numerals in different drawings represent the same or similar elements unless otherwise stated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with embodiments of the present invention. Rather, they are merely examples of apparatus and methods consistent with some aspects of embodiments of the present invention, as detailed in the appended claims.

[0035] The terms used in the embodiments of the present disclosure are merely for the purpose of describing particular embodiments and are not intended to limit the embodiments of the present disclosure. The singular forms "a," "the," and "the" 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. In addition, the term "and / or" as used herein refers to any or all possible combinations of one or more of the associated listed items.

[0036] In the embodiments of the present disclosure, terms such as first, second, third, etc. may be used to describe various pieces of information, but it should be understood that these pieces of information should not be limited to these terms. These terms are merely used to distinguish between the same types of information. For example, the first piece of information can be referred to as the second piece of information, and similarly, the second piece of information can be referred to as the first piece of information, without departing from the scope of the embodiments of the present disclosure. Depending on the context, the word "if" as used herein can be interpreted as "when" or "in the case of" or "responsive to a determination."

[0037] Referring to Fig. 1, a schematic configuration diagram of a wireless communication system provided by an embodiment of the present disclosure is shown. As shown in Fig. 1, the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include several terminals 11 and several base stations 12.

[0038] The terminal 11 may refer to a device that provides a voice and / or data connection to a user. The terminal 11 may communicate with one or more core networks via a Radio Access Network (RAN), and the terminal 11 may be an Internet terminal of things, such as a sensor device, a mobile phone (also called a "cellular" phone), and a computer with an Internet terminal of things, such as a fixed, portable, pocket, handheld, computer-embedded, or vehicle-mounted device. For example, a station (STA), subscriber unit, subscriber station, mobile station, mobile, remote station, access point, remote terminal, access terminal, user terminal, user agent, user device, or user equipment (UE). Alternatively, the terminal 11 may be an unmanned aerial vehicle device. Alternatively, the terminal 11 may be an in-vehicle device, for example, an electronic control unit having a wireless communication function, or a wireless communication device with an external electronic control unit, or the terminal 11 may be a roadside device, for example, a street lamp, a traffic light, or other roadside device having a wireless communication function.

[0039] The base station 12 may be a network side device in a wireless communication system. The wireless communication system may be the 4th generation mobile communication (4G) system, also called a Long Term Evolution (LTE) system. Alternatively, the wireless communication system may be a 5G system, also called a new radio (NR) system or a 5G NR system. Alternatively, the wireless communication system may be a system that is the next generation of the 5G system. An access network in the 5G system may be called a New Generation-Radio Access Network (NG-RAN). Alternatively, it may be called an MTC system.

[0040] The base station 12 may be an evolved base station (eNB) used in a 4G system. Or, the base station 12 may be a base station (gNB) using a centralized distributed architecture in a 5G system. When the base station 12 uses a centralized distributed architecture, it usually includes a central unit (CU) and at least two distributed units (DU). The central unit is provided with a protocol stack of a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, and a Media Access Control (MAC) layer. The distributed units are provided with a protocol stack of a physical (PHY) layer, and the embodiment of the present disclosure is not limited to a specific implementation of the base station 12.

[0041] A wireless connection can be established between the base station 12 and the terminal 11 via a wireless air interface. In different embodiments, the wireless air interface is a wireless air interface based on a fourth generation mobile communication network technology (4G) standard. Or, the wireless air interface is a wireless air interface based on a fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new radio. Or, the wireless air interface may be a wireless air interface based on a 5G next generation mobile communication network technology standard.

[0042] In some embodiments, an E2E (End to End) connection can be established between the terminals 11. For example, this is the case in a vehicle to everything (V2X) Internet communication scenario, such as V2V (vehicle to vehicle) communication, V2I (vehicle to infrastructure) communication, and V2P (vehicle to pedestrian) communication.

[0043] In some embodiments, the wireless communication system may further include a network management device 13 .

[0044] Each of the base stations 12 is 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) network. Or, the network management device may be another core network device, 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 embodiment of the present disclosure does not limit the implementation form of the network management device 13.

[0045] Acting subjects according to 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.

[0046] One application scenario of the embodiment of the present disclosure is as follows: A UE such as a terminal reports an output power report of a radio signal, for example, the UE output power report can be performed using ue-PowerClass, and the reported output power is based on one frequency band, that is, the UE can report the output power in one frequency band. The UE usually reports the output power in the form of a power class, and the power class includes PC2 and PC3, etc., PC3 represents that the maximum power is 23 dBm, and PC2 represents that the maximum power is 26 dBm. When the UE simultaneously performs an NR licensed spectrum service and an NR sidelink service in the same frequency band, the output power report is reported based on the power class of the licensed spectrum service, and the power class of the NR sidelink service is not taken into account.

[0047] Exemplarily, for a licensed spectrum service on an NR Uu interface, its power class may be PC3, PC2, etc., and its NR sidelink service power class may be PC3, PC2 (up to 26 dBm), etc., and the power class is determined by the specific design and capabilities of the UE. In the related art, the Uu interface power class, the PC5 interface power class, and the reported UE power class may be as shown in Table 1. [Table 1]

[0048] As shown in the above table, when NR licensed spectrum service and NR sidelink service are simultaneously performed in the same frequency band, the power class reporting method of the related art cannot reflect the actual situation of the UE. Therefore, how to accurately report the actual power class of the UE is an issue that needs to be addressed urgently.

[0049] As shown in FIG. 2, the present exemplary embodiment provides an information transmission method, which can be applied to a UE in a cellular mobile communication system, and includes the following steps 201.

[0050] In step 201, sending power indication information for indicating a UE power class of multiple interfaces in an operating frequency band.

[0051] The UE may be a mobile phone UE that performs wireless communication using a cellular mobile communication technology, 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.

[0052] Exemplarily, the power indication information indicates a UE power class of each interface in an operating frequency band, respectively, or indicates a UE power class of each interface on which the UE operates in the operating frequency band, respectively.

[0053] The UE power class can be used by the base station to determine an uplink transmission power value or a transmission power of a sidelink (SL) transmission, etc.

[0054] The magnitude of the uplink transmission power of the UE can be hierarchically classified according to 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.

[0055] A UE can realize communication with a counterpart UE and / or a base station through different interfaces in one operating frequency band. The different interfaces may be wireless communication channels realized by different communication protocols. The operating frequency band may be a partially set bandwidth part (BWP). Communication with a counterpart UE and / or a base station can be realized through multiple interfaces in the operating frequency band.

[0056] In one embodiment, the interface includes a Uu interface and / or a sidelink PC5 interface.

[0057] Illustratively, for one operating frequency band of V2X communication, a UE can communicate with a base station via a Uu interface within one operating frequency band, and the UE can further communicate with other UEs via a sidelink (SL, sidelink) PC5 interface within this operating frequency band.

[0058] In the related technology, the UE can report the UE power class based on the operating frequency band, and what is reported by the UE is the UE total power class of the operating frequency band, and the base station cannot determine the power classes of different interfaces based on the UE total power class of the operating frequency band.

[0059] The UE power class may be a power class that the UE uses when transmitting signals on each interface. The UE can report the UE power classes of multiple interfaces in the operating frequency band. The access network device determines the UE power classes of the multiple interfaces based on the UE's reporting information.

[0060] The UE may transmit power indication information to the base station indicating the UE power class of multiple interfaces. Conventional uplink signaling may be used to carry the power indication information. For example, the power indication information may be carried in signaling such as randomly accessed Message 3 (Msg 3), Media Access Control-Control Element (MAC-CE), Radio Resource Control (RRC), etc. The power indication information may also be carried by dedicated uplink signaling.

[0061] The access network device can determine the UE power class of each interface based on the power indication information in the uplink signaling, and can set power parameters and resource parameters for each interface based on the UE power class of each interface, thereby reducing problems such as power parameter setting errors caused by inability to determine the UE power class of an interface.

[0062] In this way, the UE reports the UE power classes of multiple interfaces in the operating frequency band, so that the base station can determine the UE power class of each interface, thereby improving the accuracy with which the base station determines the UE power classes of different interfaces, and further reducing problems such as UE power parameter setting errors caused by the inability to accurately determine the UE power classes of the interfaces.

[0063] In one embodiment, the power indication information is further used to indicate a UE total power class for the operating frequency band.

[0064] The UE total power class may be a total power class when the UE transmits signals through multiple interfaces in the operating frequency band. Since the UE total power class of the operating frequency band is not a simple accumulation of the UE power classes of the multiple interfaces, it is necessary to consider the maximum transmission power of the UE, the same frequency interference, the time domain position of transmission through different interfaces, and other circumstances. The UE total power class may be the same as the UE power class of the multiple interfaces, or the UE total power class may be higher than the UE power class of the multiple interfaces. For example, the UE power classes of the two interfaces in the operating frequency band are both PC3, and the UE total power class of the operating frequency band may be PC2 or PC3. Therefore, the UE may also report the UE total power class of the operating frequency band.

[0065] The UE communicates simultaneously on the Uu interface and the PC5 interface, and the UE total power class of the UE in the operating frequency band is limited due to the limitation of the maximum power of the UE's radio power amplifier, for example, the UE total power class is PC2. If the UE communicates simultaneously on the Uu interface and the PC5 interface using their respective maximum powers and the accumulated total power exceeds the power value defined by the UE total power class, the UE can reduce the total power of the operating frequency band in a manner such as by time-sharing the communication on the Uu interface and the communication on the PC5 interface, or by rolling back the power of the Uu interface and / or the PC5 interface to a lower class, so that the total power for the same time is equal to or less than the power value defined by the UE total power class.

[0066] Exemplarily, the power indication information reported by the UE may indicate the UE power class and the UE total power class of the operating frequency band as shown in Table 2. [Table 2]

[0067] In this way, the UE reports the UE power classes of multiple interfaces in the operating frequency band and the UE total power class of the operating frequency band, so that the base station can determine the UE power class of each interface and the UE total power class in the operating frequency band. In this way, by explicitly indicating the UE power classes of multiple interfaces in the operating frequency band, the accuracy of the base station in determining the UE power class is improved, and the problem of parameter setting errors caused by the inability to accurately determine the power class is further reduced.

[0068] In one embodiment, as shown in FIG. 3, the method further includes steps 202-203.

[0069] Step 202 receives configuration information transmitted by the base station based on the power indication information.

[0070] In step 203, a UE power configuration parameter for at least one of said interfaces is determined based on said configuration information.

[0071] The access network device can adjust the UE power setting parameters of the interfaces based on the determined UE power class of each interface and the UE total power class of the operating frequency band. The UE power setting parameters can be used, but are not limited to, for adjusting the power of the interfaces, setting resources such as time domains in which each interface operates, and the like.

[0072] By adjusting the UE power setting parameters, the power output of the UE can meet the actual needs of communication and meet the specifications of communication.

[0073] In one embodiment, the UE power configuration parameters include: The maximum power setting, Allowed power rollback; and a specific absorption rate (SAR) control strategy.

[0074] The base station can set the maximum transmission power of each interface based on the actual communication needs to obtain the maximum set power, for example, based on the signal quality and / or power consumption needs, set an appropriate maximum set power for the UE.

[0075] Power rollback refers to maintaining the power amplifier to operate in a linear operating region by rolling back the input power of the power amplifier by a predetermined value, such as 6-10 dB, from a 1 dB compression point, i.e., 1 dB gain point. The base station can configure the UE's signal transmission power amplifier based on the UE power class of each interface and the UE total power class of the operating frequency band, so that the UE's signal transmission power amplifier is maintained to operate in a linear operating region.

[0076] SAR is an index for evaluating the amount of radiation to the human body when the UE transmits a wireless signal in UE design. The UE power class in which the UE transmits a signal must not exceed the SAR radiation requirement. When multiple interfaces are working simultaneously, in a certain event window, for example, when multiple interfaces communicate at the highest power simultaneously, the UE total power class may exceed the SAR radiation requirement. Based on the determined UE power class of each interface and the UE total power class of the operating frequency band, the base station can adjust the SAR control strategy, such as adjusting the signal transmission resource of each interface, to reduce the situation in which the total power in the operating 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 to reduce the UE total power class of the operating frequency band so that the transmission time domains of each interface do not overlap.

[0077] In one embodiment, the method further comprises: receiving a communication capability report request transmitted from a base station; The method further includes a step of transmitting communication capability information in response to the communication capability report request, the communication capability information being used to indicate whether the UE is capable of data transmission using multiple interfaces in the operating frequency band.

[0078] The communication capabilities may include, but are not limited to, multi-interface communication capabilities of the UE.

[0079] As shown in FIG. 4, when the base station controls the UE to perform V2X service, specific steps of interaction between the base station and the UE may include the following steps 401 to 405.

[0080] In step 401, the base station sends a communication capability report request to request the UE to report its capability of simultaneously performing V2X services in the licensed spectrum.

[0081] The base station can send a communication capability report request before controlling the UE to perform V2X service.

[0082] In step 402, the UE reports whether it has the capability to simultaneously perform V2X services in the licensed spectrum.

[0083] After receiving the communication capability report request, the UE may report communication capability information to the base station, the communication capability information indicating an interface that the UE can use in the licensed spectrum.

[0084] Illustratively, the base station may send a communication capability report request before establishing communication to control the V2X of the UE, and the UE may report communication capability information to the base station after receiving the communication capability report request, so as to indicate that the UE is capable of communicating via the Uu interface and the sidelink PC5 interface in the licensed spectrum, i.e., the operating frequency band.

[0085] In step 403, the base station configures the UE to perform V2X services through multiple interfaces in the licensed spectrum based on the capability report and the networking needs, i.e., the base station configures the UE with a Uu interface for performing NR communication services and a PC5 interface for performing SL communication services in the same licensed frequency band.

[0086] In step 404, the UE reports the UE total power class ue-PowerClass-IntraConccurent that it has in this 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 reportable UE power classes are shown in Table 2.

[0087] In step 405, the base station sets corresponding power parameters for the UE based on the power class reported by the UE. The base station sets corresponding indicators such as maximum configured power, allowable power rollback, and SAR control strategy for the PC5 interface and the Uu interface based on the UE total power class reported by the UE, the UE power class on the PC5 interface, and the UE power class on the Uu interface, respectively.

[0088] In this way, in V2X service, the UE completes the reporting of the UE total power class of each interface and operating frequency band, and the base station completes the interface power configuration according to the reported UE power class, so that the UE power output can meet the actual communication needs and meet the communication specifications.

[0089] As shown in FIG. 5, the present exemplary embodiment provides an information transmission method, which can be applied to an access network device of a cellular mobile communication system, and includes the following steps 501-502.

[0090] In step 501, power indication information transmitted from a user equipment (UE) is received.

[0091] In step 502, determine UE power classes for multiple interfaces in an operating frequency band based on the power indication information.

[0092] The UE may be a mobile phone UE that performs wireless communication using a cellular mobile communication technology, 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.

[0093] Exemplarily, the power indication information indicates a UE power class of each interface in an operating frequency band, respectively, or indicates a UE power class of each interface on which the UE operates in the operating frequency band, respectively.

[0094] The UE power class can be used by the base station to determine an uplink transmission power value or a transmission power of a sidelink (SL) transmission, etc.

[0095] The magnitude of the uplink transmission power of the UE can be hierarchically classified according to 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.

[0096] A UE can realize communication with a counterpart UE and / or a base station through different interfaces within one operating frequency band. The different interfaces may be wireless communication channels realized by different communication protocols. The operating frequency band may be a partially defined bandwidth part (BWP). Communication with a counterpart UE and / or a base station can be realized through multiple interfaces in the operating frequency band.

[0097] In one embodiment, the interface comprises: Includes a Uu interface and / or a sidelink PC5 interface.

[0098] Illustratively, for one operating frequency band for V2X communication, a UE can communicate with a base station via a Uu interface within one operating frequency band, and the UE can further communicate with other UEs via a sidelink PC5 interface within this operating frequency band.

[0099] In the related technology, the UE can report the UE power class based on the operating frequency band, and what is reported by the UE is the UE total power class of the operating frequency band, and the base station cannot determine the power classes of different interfaces based on the UE total power class of the operating frequency band.

[0100] The UE power class may be a power class used by the UE when transmitting signals on each interface. The UE can report the UE power classes of multiple interfaces in the operating frequency band. The access network device determines the UE power classes of the multiple interfaces based on the UE's reported information.

[0101] The UE may transmit power indication information to the base station indicating the UE power class of multiple interfaces. The power indication information may be carried using conventional uplink signaling. For example, the power indication information may be carried in signaling such as randomly accessed Message 3 (Msg3), Media Access Control-Control Element (MAC-CE), Radio Resource Control (RRC), etc. The power indication information may also be carried by dedicated uplink signaling.

[0102] The access network device can determine the UE power class of each interface based on the power indication information in the uplink signaling, and can set power parameters and resource parameters for each interface based on the UE power class of each interface, thereby reducing problems such as power parameter setting errors caused by inability to determine the UE power class of an interface.

[0103] In this way, the UE reports the UE power classes of multiple interfaces in the operating frequency band, so that the base station can determine the UE power class of each interface, thereby improving the accuracy with which the base station determines the UE power classes of different interfaces, and further reducing problems such as UE power parameter setting errors caused by the inability to accurately determine the UE power classes of the interfaces.

[0104] In one embodiment, the method further comprises: The method further includes determining a UE total power class for the operating frequency band based on the power indication information.

[0105] The UE total power class may be a total power class when the UE transmits signals through multiple interfaces in the operating frequency band. Since the UE total power class of the operating frequency band is not a simple accumulation of the UE power classes of the multiple interfaces, it is necessary to consider the maximum transmission power of the UE, the same frequency interference, the time domain position of transmission through different interfaces, and other circumstances. The UE total power class may be the same as the UE power class of the multiple interfaces, or the UE total power class may be higher than the UE power class of the multiple interfaces. For example, the UE power classes of the two interfaces in the operating frequency band are both PC3, and the UE total power class of the operating frequency band may be PC2 or PC3. Therefore, the UE may also report the UE total power class of the operating frequency band.

[0106] A UE communicates simultaneously on the Uu interface and the PC5 interface, and the UE total power class of the UE in the operating frequency band is limited due to the limitation of the maximum power of the UE's radio power amplifier, for example, the UE total power class is PC2. If the UE communicates simultaneously on the Uu interface and the PC5 interface using their respective maximum powers and the accumulated total power exceeds the power value defined by the UE total power class, the UE can reduce the total power of the operating frequency band in a manner such as by time-sharing the communication on the Uu interface and the communication on the PC5 interface, or by rolling back the power of the Uu interface and / or the PC5 interface to a lower class, so that the total power for the same time is equal to or less than the power value defined by the UE total power class.

[0107] Exemplarily, the power indication information reported by the UE may indicate the UE power class and the UE total power class of the operating frequency band as shown in Table 2.

[0108] In this way, the UE reports the UE power classes of multiple interfaces in the operating frequency band and the UE total power class of the operating frequency band, so that the base station can determine the UE power class of each interface and the UE total power class in the operating frequency band. In this way, by explicitly indicating the UE power classes of multiple interfaces in the operating frequency band, the accuracy of the base station in determining the UE power class is improved, and the problem of parameter setting errors caused by the inability to accurately determine the power class is further reduced.

[0109] In one embodiment, the method further comprises: determining a UE power configuration parameter for at least one of said interfaces based on said power indication information; and transmitting configuration information to the UE indicating the UE power configuration parameters.

[0110] The access network device can adjust the UE power setting parameters of the interfaces based on the determined UE power class of each interface and the UE total power class of the operating frequency band. The UE power setting parameters can be used, but are not limited to, for adjusting the power of the interfaces, setting resources such as time domains in which each interface operates, and the like.

[0111] By adjusting the UE power setting parameters, the power output of the UE can meet the actual needs of communication and meet the specifications of communication.

[0112] In one embodiment, the UE power configuration parameters include: The maximum power setting, Allowed power rollback; and a specific absorption rate (SAR) control strategy.

[0113] The base station can set the maximum transmission power of each interface based on the actual communication needs to obtain the maximum set power, for example, based on the signal quality and / or power consumption needs, set a suitable maximum set power for the UE.

[0114] Power rollback refers to maintaining the power amplifier to operate in a linear operating region by rolling back the input power of the power amplifier by a predetermined value, such as 6-10 dB, from a 1 dB compression point, i.e., 1 dB gain point. The base station can configure the UE's signal transmission power amplifier based on the UE power class of each interface and the UE total power class of the operating frequency band, so that the UE's signal transmission power amplifier is maintained to operate in a linear operating region.

[0115] SAR is an index for evaluating the amount of radiation to the human body when the UE transmits a wireless signal in UE design. The UE power class in which the UE transmits a signal must not exceed the SAR radiation requirement. When multiple interfaces are working simultaneously, in a certain event window, for example, when multiple interfaces communicate at the highest power simultaneously, the UE total power class may exceed the SAR radiation requirement. Based on the determined UE power class of each interface and the UE total power class of the operating frequency band, the base station can adjust the SAR control strategy, such as adjusting the signal transmission resource of each interface, to reduce the situation in which the total power in the operating 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 to reduce the UE total power class of the operating frequency band so that the transmission time domains of each interface do not overlap.

[0116] In one embodiment, the method further comprises: sending a communication capability report request to the UE; receiving communication capability information transmitted by the UE in response to the communication capability report request; The method further includes determining, based on the communication capability information, whether the UE is capable of data transmission using a plurality of the interfaces in the operating frequency band.

[0117] The communication capabilities may include, but are not limited to, multi-interface communication capabilities of the UE.

[0118] As shown in FIG. 4, while the base station controls the UE to perform V2X service, specific steps of interaction between the base station and the UE may include the following steps 401 to 405.

[0119] In step 401, the base station sends a communication capability report request to request the UE to report its capability of simultaneously performing V2X services in the licensed spectrum.

[0120] The base station can send a communication capability report request before controlling the UE to perform V2X service.

[0121] In step 402, the UE reports whether it has the capability to simultaneously perform V2X services in the licensed spectrum.

[0122] After receiving the communication capability report request, the UE may report communication capability information to the base station, the communication capability information indicating an interface that the UE can use in the licensed spectrum.

[0123] Illustratively, the base station may send a communication capability report request before establishing communication to control the V2X of the UE, and the UE may report communication capability information to the base station after receiving the communication capability report request, so as to indicate that the UE is capable of communicating via the Uu interface and the sidelink PC5 interface in the licensed spectrum, i.e., the operating frequency band.

[0124] In step 403, the base station configures the UE to perform V2X services through multiple interfaces in the licensed spectrum based on the capability report and the networking needs. The base station configures the UE with a Uu interface for performing NR communication services and a PC5 interface for performing SL communication services in the same licensed frequency band.

[0125] In step 404, the UE reports the UE total power class ue-PowerClass-IntraConccurent that it has in this 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 reportable UE power classes are shown in Table 2.

[0126] In step 405, the base station sets corresponding power parameters for the UE based on the power class reported by the UE. The base station sets corresponding indicators such as maximum configured power, allowable power rollback, and SAR control strategy for the PC5 interface and the Uu interface based on the UE total power class reported by the UE, the UE power class on the PC5 interface, and the UE power class on the Uu interface, respectively.

[0127] In this way, in V2X service, the UE completes the reporting of the UE total power class of each interface and operating frequency band, and the base station completes the interface power configuration according to the reported UE power class, so that the UE power output can meet the actual communication needs and meet the communication specifications.

[0128] Specific examples are provided below in conjunction with any of the above examples.

[0129] The UE reports whether it has the capability to simultaneously perform V2X services in the licensed spectrum.

[0130] The base station sends an instruction to the UE requesting it to simultaneously transmit V2X services in the licensed spectrum based on the capabilities reported by the UE and the actual networking needs.

[0131] The UE shall not transmit any 1. UE total power class for Intra-band Concurrent Operation; 2. UE power class at PC5 interface; 3. Report the UE power class on the Uu interface.

[0132] The network sets the maximum transmission power and corresponding indicators such as power rollback for the UE on each interface based on the UE total power class reported by the UE, the UE power class on the PC5 interface, and the UE power class on the Uu interface.

[0133] The flow chart of the interaction between the UE and the base station is shown in Figure 4.

[0134] Example 1: In step 401, the base station sends a communication capability report request to request the UE to report its capability of simultaneously performing V2X services in the licensed spectrum.

[0135] In step 402, the UE reports whether it has the capability to simultaneously perform V2X services in the licensed spectrum.

[0136] Example 2: In step 403, the base station configures the UE to perform V2X services through multiple interfaces in the licensed spectrum based on the capability report and the networking needs. The base station configures the UE to perform a Uu interface for performing NR communication services and a PC5 interface for performing SL communication services in the same licensed frequency band based on the capability reported by the UE and the networking service needs.

[0137] Example 3: In step 404, the UE reports the UE total power class ue-PowerClass-IntraConccurent that it has in this licensed spectrum, the UE power class ue-PowerClassPC5 on the PC5 interface, and the UE power class ue-PowerClassUu on the Uu interface. The reportable power classes are shown in Table 2.

[0138] Example 4: In step 405, the base station sets corresponding power parameters for the UE based on the power class reported by the UE. The base station sets corresponding indicators such as maximum configured power, allowable power rollback, and SAR control strategy for the PC5 interface and the Uu interface based on the UE total power class reported by the UE, the UE power class on the PC5 interface, and the UE power class on the Uu interface, respectively.

[0139] An embodiment of the present invention further provides an information transmission device, which is applied to a UE in a wireless communication. As shown in FIG. 6 , the information transmission device 100 includes: a first transmitting module 110; The first sending module 110 is configured to send power indication information for indicating a UE power class of a plurality of interfaces in an operating frequency band.

[0140] In one embodiment, the power indication information is further used to indicate a UE total power class for the operating frequency band.

[0141] In one embodiment, the device 100 comprises: a first receiving module 120 configured to receive setting information sent by a base station based on the power indication information; and a first determining module 130 configured to determine a UE power configuration parameter of at least one of the interfaces based on the configuration information.

[0142] In one embodiment, the UE power configuration parameters include: The maximum power setting, Allowed power rollback; and a specific absorption rate (SAR) control strategy.

[0143] In one embodiment, the device 100 comprises: A second receiving module 140 configured to receive a communication capability report request sent from a base station; and a second transmitting module 150 configured to transmit communication capability information in response to the communication capability report request, the communication capability information being used to indicate whether the UE is capable of data transmission using a plurality of the interfaces in the operating frequency band.

[0144] In one embodiment, the interface comprises: Includes a Uu interface and / or a sidelink PC5 interface.

[0145] An embodiment of the present invention further provides an information transmission device, which is applied to a wireless communication base station. As shown in FIG. 7, the information transmission device 200 includes: a third receiving module 210 and a second determining module 220; The third receiving module 210 is configured to receive power indication information transmitted from a user equipment (UE); The second determining module 220 is configured to determine, based on the power indication information, a UE power class of a plurality of interfaces within an operating frequency band.

[0146] In one embodiment, the device 200 comprises: The third determining module 230 is configured to determine a UE total power class for the operating frequency band based on the power indication information.

[0147] In one embodiment, the device 200 comprises: a fourth determining module 240 configured to determine a UE power setting parameter of at least one of the interfaces based on the power indication information; and a third sending module 250 configured to send configuration information to the UE indicating the UE power configuration parameters.

[0148] In one embodiment, the UE power configuration parameters include: The maximum power setting, Allowed power rollback; and a specific absorption rate (SAR) control strategy.

[0149] In one embodiment, the device 200 comprises: A fourth sending module 260 configured to send a communication capability report request to the UE; a fourth receiving module 270 configured to receive communication capability information sent by a UE in response to the communication capability report request; and a fifth determining module 280 configured to determine, based on the communication capability information, whether the UE is capable of data transmission using a plurality of the interfaces in the operating frequency band.

[0150] In one embodiment, the interface comprises: Includes a Uu interface and / or a sidelink PC5 interface.

[0151] In an exemplary embodiment, the first transmitting module 110, the first receiving module 120, the first determining module 130, the second receiving module 140, the second transmitting module 150, the third receiving module 210, the second determining module 220, the third determining module 230, the fourth determining module 240, the third transmitting module 250, the fourth transmitting module 260, the fourth receiving module 270, and the fifth determining module 280, etc., may be implemented as one or more central processing units (CPUs, Central Processing Units), graphics processors (GPUs, Graphics Processing Units), baseband processors (BPs, baseband processors), application specific integrated circuits (ASICs, Application Specific Integrated Circuits), DSPs, programmable logic devices (PLDs, Programmable Logic Devices), complex programmable logic devices (CPLDs, Complex Programmable Logic Devices), field programmable gate arrays (FPGAs, Field Programmable Gate Array ... The present invention may be implemented by a microcontroller (Micro Controller Unit, MCU), a general-purpose processor, a controller, a microcontroller (Micro Controller Array), a microprocessor, or other electronic components to execute the method.

[0152] 8 is a block diagram of a device 3000 for use in 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.

[0153] Referring to FIG. 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.

[0154] The processing component 3002 typically controls the overall operation of the device 3000, such as operations related to display, phone calls, data communication, camera operation, and recording operations. The processing component 3002 may include one or more processors 3020 for executing instructions to complete all or some steps of the above method. It should be noted that the processing component 3002 may include one or more modules to facilitate interaction with other components. For example, the processing component 3002 may include a multimedia module to facilitate interaction between the processing component 3002 and the multimedia component 3008.

[0155] The memory 3004 is configured to store various types of data to support operation on the device 3000. Examples of these data include instructions for any application programs or methods for operating on the device 3000, contact data, phone book data, messages, images, videos, etc. The memory 3004 may be implemented by any type of volatile or non-volatile storage device or combination thereof, such as a static random access memory (SRAM), an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a programmable read-only memory (PROM), a read-only memory (ROM), a magnetic memory, a flash memory, a magnetic disk, or an optical disk.

[0156] The power supply component 3006 provides power to the various components of the device 3000. The power supply component 3006 can include a power management system, one or more power sources, and other components associated with the generation, management, and distribution of power for the device 3000.

[0157] The multimedia component 3008 includes a screen that provides an output interface between the device 3000 and a user. In some embodiments, the screen can 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 a user. The touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor can detect the boundaries of the touch or slide motion as well as 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 operation mode, such as a photo mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or can have a focal length and optical zoom capability.

[0158] The audio component 3010 is configured to output and / or input audio signals. For example, the audio component 3010 includes a microphone (MIC) configured to receive external audio signals when the device 3000 is in an operation mode such as a call mode, a record mode, and a voice recognition mode. The received audio signals may 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.

[0159] The I / O interface 3012 provides an interface between the processing component 3002 and a peripheral interface module, which may be a keyboard, a click wheel, buttons, etc. These buttons may include, but are not limited to, a home button, volume buttons, a start button, and a lock button.

[0160] The sensor component 3014 includes one or more sensors to provide various aspects of the status assessment of the device 3000. For example, the sensor component 3014 can detect the on / off state of the device 3000, the relative positioning of a component, such as the display and keypad of the device 3000, and can further detect the position change of the device 3000 or one of its components, the presence or absence of contact between the user and the device 3000, the orientation and position or acceleration / deceleration of the device 3000, and the temperature change of the device 3000. The sensor component 3014 can also include a proximity sensor configured to detect the presence of a nearby object in the absence of any physical contact. The sensor component 3014 can further include an optical sensor, such as a CMOS or CCD image sensor used for 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.

[0161] 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 WiFi, 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 may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0162] 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 methods described above.

[0163] In an exemplary embodiment, a non-transitory computer readable storage medium containing instructions, such as a memory 3004 containing instructions, may be provided, which may be executed by the processor 3020 of the apparatus 3000 to complete the 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, an optical data storage device.

[0164] Those skilled in the art will readily conceive other embodiments of the embodiments of the present invention after studying the specification and practicing the invention disclosed herein. This application is intended to cover any modifications, uses or adaptations of the present invention, which modifications, uses or adaptations follow the general principles of the embodiments of the present invention and include common general knowledge or commonly used technical means in the art that are not disclosed in the embodiments of the present disclosure. The specification and examples are considered to be merely exemplary, with the true scope and spirit of the embodiments of the present invention being indicated by the following claims.

[0165] It should be noted that the embodiments of the present invention are not limited to the exact structures described above and illustrated in the drawings, and various modifications and variations can be made without departing from the scope of the present invention, which is limited only by the scope of the appended claims.

Claims

1. 1. A method for transmitting information performed by a user equipment (UE), the method comprising: transmitting power indication information for indicating a UE power class of a plurality of interfaces within an operating frequency band; The information transmission method, characterized in that the power indication information is further used to indicate a UE total power class of the operating frequency band.

2. The method comprises: receiving configuration information transmitted by a base station based on the power indication information; determining a UE power configuration parameter for at least one of the interfaces based on the configuration information.

2. The information transmission method according to claim 1 .

3. The UE power setting parameters are: Including maximum power setting 3. The information transmission method according to claim 2.

4. The method comprises: receiving a communication capability report request transmitted from a base station; and transmitting communication capability information in response to the communication capability report request, the communication capability information being used to indicate whether the UE is capable of data transmission using a plurality of the interfaces in the operating frequency band.

2. The information transmission method according to claim 1 .

5. The interface includes: Including a Uu interface and / or a sidelink PC5 interface; 2. The information transmission method according to claim 1 .

6. 1. A method for transmitting information performed by a base station, the method comprising: receiving power indication information transmitted from a user equipment (UE); determining a UE power class for a plurality of interfaces within an operating frequency band based on the power indication information; determining a UE total power class for the operating frequency band based on the power indication information; 23. An information transmission method comprising:

7. The method determining a UE power setting parameter for at least one of said interfaces based on said power indication information; and transmitting configuration information to the UE indicating the UE power configuration parameters.

7. The information transmission method according to claim 6.

8. The UE power setting parameters are: Including maximum power setting 8. The information transmission method according to claim 7.

9. The method comprises: sending a communication capability report request to the UE; receiving communication capability information transmitted by the UE in response to the communication capability report request; and determining whether the UE is capable of data transmission using a plurality of the interfaces in the operating frequency band based on the communication capability information.

7. The information transmission method according to claim 6.

10. The interface includes: Including a Uu interface and / or a sidelink PC5 interface; 7. The information transmission method according to claim 6.

11. 1. An information transmission device, the device including a first transmitting module; The first transmitting module is configured to transmit power indication information for indicating a UE power class of a plurality of interfaces within an operating frequency band; The power indication information is further used to indicate a UE total power class of the operating frequency band.

23. An information transmission device comprising:

12. The apparatus comprises: a first receiving module configured to receive setting information transmitted by a base station based on the power indication information; and a first determining module configured to determine a UE power configuration parameter of at least one of the interfaces based on the configuration information.

12. An information transmission device according to claim 11.

13. The UE power setting parameters are: Including maximum power setting 13. An information transmission device according to claim 12.

14. The apparatus comprises: A second receiving module configured to receive a communication capability report request sent from a base station; and a second transmission module configured to transmit communication capability information in response to the communication capability report request, the communication capability information being used to indicate whether the UE is capable of data transmission using a plurality of the interfaces in the operating frequency band.

14. An information transmission device according to claim 11, wherein:

15. The interface includes: Including a Uu interface and / or a sidelink PC5 interface; 14. An information transmission device according to claim 11, wherein:

16. An information transmission device, the device including: a third receiving module, a second determining module, and a third determining module; The third receiving module is configured to receive power indication information transmitted from a user equipment (UE); The second determination module is configured to determine a UE power class for a plurality of interfaces in an operating frequency band based on the power indication information; The third determination module is configured to determine a UE total power class for the operating frequency band based on the power indication information.

2. An information transmission device comprising:

17. The apparatus comprises: a fourth determining module configured to determine a UE power setting parameter of at least one of the interfaces based on the power indication information; and a third transmission module configured to transmit configuration information to the UE indicating the UE power configuration parameters.

17. An information transmission device according to claim 16.

18. The UE power setting parameters are: Including maximum power setting 20. An information transmission device according to claim 17,

19. The apparatus comprises: a fourth sending module configured to send a communication capability report request to the UE; a fourth receiving module configured to receive communication capability information transmitted by a UE in response to the communication capability report request; and a fifth determination module configured to determine whether the UE is capable of data transmission using a plurality of the interfaces in the operating frequency band based on the communication capability information.

19. An information transmission device according to claim 16, wherein:

20. The interface includes: Including a Uu interface and / or a sidelink PC5 interface; 19. An information transmission device according to claim 16, wherein:

21. 1. A communications device, comprising: A method for transmitting information comprising: a processor; a memory; and an executable program stored in the memory and executed by the processor, the processor executing the steps of the information transmission method according to any one of claims 1 to 5 when executing the executable program. A communication device comprising:

22. 1. A communications device, comprising: A method for transmitting information comprising: a processor; a memory; and an executable program stored in the memory and executed by the processor, the processor executing the steps of the information transmission method according to any one of claims 6 to 10 when executing the executable program. A communication device comprising:

23. A storage medium on which an executable program is stored, The executable program, when executed by a processor, implements the steps of the information transmission method according to any one of claims 1 to 5. A storage medium comprising:

24. A storage medium on which an executable program is stored, The executable program, when executed by a processor, implements the steps of the information transmission method according to any one of claims 6 to 10. A storage medium comprising:

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