CN112655250B - Wireless communication method, terminal equipment and network equipment - Google Patents

Abstract

A method for wireless communication, a terminal device and a network device, capable of avoiding SAR exceeding of the terminal device, the method being applied to the terminal device, the terminal device establishing a connection with a first network and a second network simultaneously, the method comprising: the terminal equipment determines a corresponding maximum equivalent uplink duty ratio when the total transmission power of the first network and the second network is the maximum transmission power, wherein when the maximum equivalent uplink duty ratio is reached, the specific absorption ratio SAR of the electromagnetic waves of the terminal equipment reaches a preset value; and the terminal equipment reports the maximum equivalent uplink duty ratio to network equipment.

Description

Wireless communication method, terminal device and network device

technical field

The embodiments of the present application relate to the communication field, and in particular to a wireless communication method, a terminal device, and a network device.

Background technique

Electromagnetic wave specific absorption rate (Specific Absorption Rate, SAR) is used to measure the electromagnetic radiation intensity of the terminal equipment to the human body, and the SAR of the terminal equipment usually cannot exceed the specified index requirements.

For a terminal device that supports multiple standards at the same time, for example, it supports the Long Term Evolution (Long Term Evolution, LTE) standard and the New Radio (New Radio, NR) standard, the LTE standard and the NR standard of the terminal device can be in the working state at the same time, and the LTE standard and the The NR standard can use a common antenna design, that is, the LTE standard and the NR standard can work in the same frequency band, and the contribution to the SAR of the terminal device is symmetrical. In this case, how to avoid the SAR of the terminal device exceeding the standard is an urgent problem to be solved.

Contents of the invention

Embodiments of the present application provide a wireless communication method, a terminal device, and a network device, which help to avoid the problem of SAR exceeding the standard of the terminal device.

In a first aspect, a wireless communication method is provided, which is applied to a terminal device, and the terminal device establishes a connection with a first network and a second network at the same time, and the method includes: the terminal device determines the first network and the second network The total transmission power of the second network is the maximum equivalent uplink ratio corresponding to the maximum transmission power, wherein, when the maximum equivalent uplink ratio is reached, the electromagnetic wave specific absorption ratio SAR of the terminal device reaches a predetermined value ; The terminal device reports the maximum equivalent uplink ratio to the network device.

In a second aspect, a wireless communication method is provided, which is applied to a network device, and the network device provides services for the first network and the second network at the same time, and the method includes: the network device receives the maximum etc. Effective uplink ratio, wherein the maximum equivalent uplink ratio is when the total transmission power of the first network and the second network is the maximum transmission power, the electromagnetic wave specific absorption ratio SAR of the terminal device reaches a predetermined value The corresponding equivalent uplink ratio; the network device controls the uplink ratio of the first network and/or the uplink ratio of the second network, so that the equivalent uplink ratio of the terminal device is less than or It is equal to the maximum equivalent uplink ratio.

In a third aspect, a terminal device is provided, configured to execute the method in the foregoing first aspect or any possible implementation manner of the first aspect. Specifically, the terminal device includes a unit configured to execute the method in the foregoing first aspect or any possible implementation manner of the first aspect.

In a fourth aspect, a network device is provided, configured to execute the method in the foregoing second aspect or any possible implementation manner of the second aspect. Specifically, the network device includes a unit configured to execute the method in the foregoing second aspect or any possible implementation manner of the second aspect.

According to a fifth aspect, a terminal device is provided, and the terminal device includes: a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the above first aspect or its various implementations.

According to a sixth aspect, a network device is provided, and the network device includes: a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the above second aspect or its various implementations.

In a seventh aspect, a chip is provided for implementing any one of the above first aspect to the second aspect or the method in each implementation manner thereof.

Specifically, the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the chip executes any one of the above-mentioned first to second aspects or any of the implementations thereof. method.

In an eighth aspect, there is provided a computer-readable storage medium for storing a computer program, and the computer program causes a computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner thereof.

In a ninth aspect, a computer program product is provided, including computer program instructions, the computer program instructions causing a computer to execute any one of the above first to second aspects or the method in each implementation manner thereof.

In a tenth aspect, a computer program is provided, which, when running on a computer, causes the computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner.

Based on the above technical solution, a terminal device supporting multiple standards can determine the corresponding maximum equivalent uplink ratio when the total transmission power of the first network and the second network is the maximum transmission power, wherein, when the maximum transmission power is reached, the maximum When the equivalent uplink ratio is reached, the electromagnetic wave specific absorption ratio SAR of the terminal device reaches a predetermined value, and the maximum equivalent uplink ratio can be reported to the network device, so that the network device can schedule the uplink ratio of the first network and the second network. The ratio can control the equivalent uplink ratio of the terminal device to be less than or equal to the maximum equivalent uplink ratio, so that the SAR exceeding the standard of the terminal device can be avoided.

Description of drawings

Fig. 1 is a schematic diagram of an application scenario provided by an embodiment of the present application.

Fig. 2 is a schematic diagram of a wireless communication method provided by an embodiment of the present application.

Fig. 3 is a schematic diagram of a wireless communication method provided by another embodiment of the present application.

Fig. 4 is a schematic block diagram of a terminal device provided by an embodiment of the present application.

Fig. 5 is a schematic block diagram of a network device provided by an embodiment of the present application.

Fig. 6 is a schematic block diagram of a communication device provided by another embodiment of the present application.

Fig. 7 is a schematic block diagram of a chip provided by an embodiment of the present application.

Fig. 8 is a schematic block diagram of a communication system provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The technical solution of the embodiment of the present application can be applied to various communication systems, such as: Global System of Mobile communication (Global System of Mobile communication, GSM) system, Code Division Multiple Access (Code Division Multiple Access, CDMA) system, Wideband Code Division Multiple Access (Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (Time Division Duplex, TDD), Universal Mobile Telecommunication System (Universal MobileTelecommunication System, UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system or 5G system, etc.

Exemplarily, FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present invention.

As shown in FIG. 1, a terminal device 110 is connected to a first network device 130 under a first communication system and a second network device 120 under a second communication system. For example, the first network device 130 is a Long Term Evolution (LTE) , LTE), the second network device 120 is a network device under New Radio (NR).

Wherein, the first network device 130 and the second network device 120 may include multiple cells.

It should be understood that FIG. 1 is an example of a scenario of an embodiment of the present invention, and the embodiment of the present invention is not limited to what is shown in FIG. 1 .

For example, the communication system to which this embodiment of the present invention is adapted may include at least multiple network devices under the first communication system and/or multiple network devices under the second communication system.

For another example, the first communication system and the second communication system in the embodiment of the present invention are different, but specific types of the first communication system and the second communication system are not limited. For example, the first communication system and the second communication system may be various communication systems, such as: Global System of Mobile communication (Global System of Mobile communication, GSM) system, Code Division Multiple Access (Code Division Multiple Access, CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution (Long Term Evolution, LTE) system, LTE Time Division Duplex (TimeDivision Duplex, TDD), general Mobile communication system (Universal Mobile Telecommunication System, UMTS), etc.

A network device in this embodiment of the present application may refer to any entity on the network side that is used to send or receive signals. For example, it can be a user equipment of machine type communication (MTC), a base station (Base TransceiverStation, BTS) in GSM or CDMA, a base station (NodeB) in WCDMA, an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE , base station equipment in 5G network, etc.

Terminal device 110 may be any terminal device. Specifically, the terminal device may communicate with one or more core networks (Core Network) via a radio access network (Radio Access Network, RAN), and may also be called an access terminal, a user equipment (User Equipment, UE), or a user unit. , subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. For example, it can be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), a wireless communication function Handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, and terminal devices in 5G networks, etc.

Optionally, the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.

In the new radio (New Radio, NR) communication system, the dual connection (Dual Connection, DC) scenario may include (LTE NR DC, EN-DC), (NR eLTE DC, NE-DC), (5GC eLTE NR DC, 5GC-EN-DC), NR DC, where EN-DC uses the long term evolution (Long Term Evolution, LTE) node as the master node (MasterNode, MN), and the NR node as the secondary node (Slave Node, SN), the connection group Evolved Packet Core (EPC) core network. In the NE-DC, the NR serves as the MN, and the Evolved Long Term Evolution (eLTE) serves as the SN, connecting to the fifth-generation mobile communication technology core network (5-Generation Core, 5GC). In 5GC-EN-DC, eLTE acts as MN, NR acts as SN, and connects to 5GC. In NR DC, NR acts as MN, NR acts as SN, and connects to 5GC.

In this embodiment of the application, the terminal device can be connected to a variety of different networks at the same time. For example, in the EN-DC scenario, the terminal device is connected to the eLTE network and the NR network at the same time. The terminal device in this scenario can be called an EN-DC terminal or NE-DC terminal.

FIG. 2 is a schematic flowchart of a wireless communication method provided by an embodiment of the present application. The method 200 can be executed by a terminal device, and the terminal device is connected to the first network and the second network at the same time. As shown in FIG. 2 , the Method 200 includes the following:

S210. The terminal device determines the maximum equivalent uplink ratio corresponding to when the total transmission power of the first network and the second network is the maximum transmission power, wherein, when the maximum equivalent uplink ratio is reached, the The electromagnetic wave specific absorption ratio SAR of the terminal equipment reaches the predetermined value;

S220. The terminal device reports the maximum equivalent uplink ratio to the network device.

Optionally, in this embodiment of the present application, the predetermined value of the SAR may be a value stipulated by a standard, and the SAR may be preset on the terminal device to indicate requirements for electromagnetic radiation intensity of the terminal device.

Optionally, in this embodiment of the present application, the first network and the second network may share network equipment (specifically, access network equipment), that is, the network equipment may provide services for the first network and the second network at the same time. In this case, the network device may know the uplink proportions of the first network and the second network; or the network devices (specifically, access network devices) of the first network and the second network may be independent, and in this case, the terminal device The uplink ratio of the first network may be obtained, and further, the uplink ratio of the first network may be reported to the network device of the second network, and vice versa, which is not limited in this embodiment of the present application.

Optionally, in this embodiment of the application, the first network is the primary network, and the second network is the secondary network, that is, the connection between the terminal device and the first network is the primary connection, and the connection between the terminal device and the second network as a secondary connection.

As an example and not limitation, the first network may be an LTE network, and the second network may be an NR network. In this case, the terminal device may be called an EN-DC terminal; or, the first network may be an NR network, The second network may be an LTE network. In this case, the terminal device may be called a NE-DC terminal. In the following, the first network is an LTE network and the second network is an NR network. It is not limited to this.

Optionally, in the embodiment of the present application, the LTE network and the NR network can adopt a common antenna design, that is, the LTE network and the NR network can work in the same frequency band, therefore, the SAR brought by the LTE network and the NR network is equivalent, That is, the SAR value brought by the same transmit power of the LTE network and the NR network is the same. The SAR of the terminal device is the sum of the SARs of the LTE network and the NR network. The SAR is affected by the transmission power and the uplink ratio. Generally speaking, the higher the transmission power, the larger the SAR, and the larger the uplink ratio, the larger the SAR. Therefore, the SAR of the terminal device can be adjusted by adjusting the transmit power or the uplink ratio.

Specifically, in this embodiment of the application, the terminal device can determine the maximum equivalent uplink ratio when the total transmit power of the LTE network and the NR network is the maximum transmit power, specifically, the transmit power of the LTE network can be set to For the first transmission power, the transmission power of the NR network is set to the second transmission power, wherein the sum of the first transmission power and the second transmission power is the maximum transmission power; further, it can be measured Under the above transmission power, the maximum value of the local radiated electric field intensity of the terminal equipment to the human body is recorded as E ₁ . If the maximum electric field intensity corresponding to the SAR index stipulated in the standard is E ₀ , the terminal equipment can determine the maximum equivalent uplink occupation The ratio is E ₀ /E ₁ , that is, when the equivalent uplink ratio of the terminal device reaches the maximum equivalent uplink ratio, the SAR of the terminal device reaches a predetermined value. Further, the terminal device can report the maximum equivalent uplink ratio to the network device, so that the network device controls the uplink ratio of the LTE network or the NR network so that the equivalent uplink ratio of the terminal device does not exceed The maximum equivalent uplink ratio can avoid the problem that the SAR of the terminal equipment exceeds the standard.

It should be understood that, in this embodiment of the present application, when determining the maximum equivalent uplink ratio, the terminal device may also adjust the first transmit power and the second transmit power, as long as the sum of the two is the maximum transmit power, that is, Yes, and then test the maximum value of the local radiation electric field strength of the terminal device to the human body under different first and second transmit powers. Among the maximum values of the local radiated electric field strength, the largest one is selected as E1 for calculating the maximum equivalent uplink ratio.

Assuming that the total transmission power is P _max , when the first transmission power is P _max /2 and the second transmission power is P _max /2, the maximum value of the local radiated electric field intensity of the terminal equipment to the human body can be tested, denoted as E _11. When the first transmission power is 2P _max /3 and the second transmission power is P _max /3, test the maximum value of the local radiation electric field strength of the terminal equipment to the human body, denoted as E ₁₂ , or When the first transmission power is 3P _max /4 and the second transmission power is P _max /4, test the maximum value of the local radiated electric field intensity of the terminal equipment to the human body, which is denoted as E ₁₃ , further, it can be measured at E ₁₁ , E ₁₂ and E ₁₃ select the maximum value as E1 for determining the maximum equivalent uplink ratio.

It should be understood that in the embodiment of the present application, since the LTE network and the NR network can adopt a common antenna design, the contribution of the LTE network and the NR network to the SAR value is usually the same at the same transmission power, that is, E ₁₁ , The error of E ₁₂ and E ₁₃ is not large. In the actual test, it is only necessary to test the maximum value of the local radiated electric field intensity of the terminal device to the human body in one case. For example, only when the first transmit power and the second transmit power are both 1/2 of the maximum transmit power, the maximum value of the local radiated electric field intensity of the terminal equipment to the human body is used as the calculation of the maximum equivalent uplink ratio E1.

In this embodiment of the application, the uplink and downlink ratio of the LTE network is usually configured statically or semi-statically, for example, 60%, 50%, 40%, 30%, 25% or 10%, etc. Therefore, the SAR of the LTE network It is mainly affected by the transmission power, and the uplink ratio of the NR network is usually configured semi-statically or dynamically. The ratio can be adjusted dynamically, and the window length of the uplink ratio can be any value. Therefore, the SAR value of the NR network is affected by the transmit power and the uplink ratio.

In this embodiment of the application, when a terminal device accesses the LTE network, the terminal device can obtain the uplink configuration information of the LTE network according to the system broadcast message of the LTE network, including the uplink and downlink configuration information of the LTE network, which can also be understood as The uplink ratio of the LTE network.

In this embodiment of the present application, the terminal device may determine the current equivalent uplink ratio of the terminal device. For example, the terminal device may combine the first network and the second network according to the current uplink ratios of the first network and the second network. The current transmit power of the second network determines the current equivalent uplink ratio of the terminal device. It can be seen from the above description that the SAR value of the terminal equipment is proportional to the transmission power and uplink ratio. The higher the transmission power, the larger the SAR, the larger the uplink ratio, and the larger the SAR. If the effective uplink ratio is greater than the maximum equivalent uplink ratio, for the terminal device, the current equivalent uplink ratio of the terminal device can be reduced by reducing the transmit power of the first network and/or the transmit power of the second network. Ratio, so that it is less than or equal to the maximum equivalent uplink ratio, so as to avoid the SAR of the terminal device from exceeding the standard; for network equipment, it can be reduced by reducing the uplink ratio of the first network and/or the The method of uplink ratio reduces the current equivalent uplink ratio of the terminal equipment so that it is less than or equal to the maximum equivalent uplink ratio, so as to avoid the SAR of the terminal device from exceeding the standard.

Hereinafter, in combination with specific embodiments, a specific implementation manner for the terminal device to prevent the SAR exceeding the standard will be described.

In this embodiment of the application, the length of the scheduling window of the NR network is window, and the network device schedules the uplink ratio of the NR network in units of the window length. It is assumed that the transmission power in the window of the NR network is P ₂ , where P ₂ is linear Power value, the uplink ratio is D _N2 . The transmit power of the LTE network is P ₁ , where P ₁ is also a linear power value, and the uplink ratio is D _N1 . Assuming that the maximum transmit power of the terminal device is P _max , the equivalent uplink ratio D _en of the terminal device within the window window can be determined according to the following formula.

P ₁ *D _N1 +P ₂ *D _N2 ＝P _max *D _en formula (1)

P ₁ +P ₂ =P _max formula (2)

From the above formula (1) and formula (2), we can get:

D _en ＝D _N1 *P ₁ /P _max +D _N2 *P ₂ /P _max formula (3)

In order to prevent the SAR of the terminal device from exceeding the standard, the equivalent uplink ratio D _en of the terminal device needs to be less than or equal to the maximum equivalent uplink ratio D _max , that is, D _N1 *P ₁ /P _max +D _N2 *P ₂ /P _max ≤ D _max .

Since the uplink ratio of the LTE network is usually configured statically or semi-statically, that is, the uplink ratio of the LTE network is usually a fixed value, then the uplink ratio of the NR network can be controlled to make the equivalent uplink ratio of the terminal device less than Or equal to the maximum equivalent uplink ratio, that is, the uplink ratio of the second network needs to meet the following conditions:

D _N2 ≤[D _max -D _N1 *(P ₁ /P _max )]/(1-P ₁ /P _max ) formula (4)

Therefore, in order to avoid the problem that the SAR of the terminal equipment exceeds the standard, the network equipment needs to control it to satisfy the formula (4) when scheduling the uplink ratio of the NR network, that is, the maximum uplink ratio of the NR network is [D _max -D _N1 *(P ₁ /P _max )]/(1-P ₁ /P _max ).

Optionally, in a specific embodiment, if both the transmit power of the first network and the transmit power of the second network are 1/2 of the maximum transmit power, that is, P ₁ =P ₂ =P _max /2, for example, P ₁ and P ₂ are both 23dBm, and P _max is 26dBm, then the maximum uplink ratio of the second network can be simplified as D _N2-max =2D _max -D _N1 .

Optionally, in this embodiment of the application, when the uplink ratio of the NR network is greater than the maximum ratio of the NR network, in this case, the terminal device has the risk of exceeding the SAR, so the terminal device can reduce the LTE network and the total transmission power of the NR network. Optionally, the terminal device may also not send uplink data in the time unit that can perform uplink transmission.

As an optional embodiment, if the connection between the terminal device and the LTE network is a primary connection, the terminal device preferentially reduces the transmission power of the NR network. Optionally, in some cases, the terminal device may also disconnect from the NR network, and only keep the connection to the LTE network, for example, if the degree of reduction in the transmission power of the NR network is greater than a certain threshold (for example, 3dB), In this case, it can be considered that the signal of the NR network is weak enough to support the communication connection on the NR network side of the terminal device. Therefore, the terminal device can disconnect from the NR network and only keep the connection to the LTE network.

Optionally, as another optional embodiment, if the connection between the terminal device and the NR network is a primary connection, the terminal device may preferentially reduce the transmit power of the LTE network, so as to reduce the SAR of the terminal device. Similarly, the terminal device can also disconnect from the LTE network, and only keep the connection to the NR network. For example, if the degree of reduction in the transmission power of the LTE network is greater than a certain threshold (for example, 3dB), in this case, it can be considered The signal of the LTE network is weak enough to support the communication connection on the NR network side of the terminal device, so the terminal device can disconnect from the LTE network and only keep the connection to the NR network

Optionally, as yet another embodiment, if the uplink proportion of the NR network is greater than a certain threshold, and the threshold is greater than the maximum uplink proportion of the NR network, in this case, even if it can be considered that even if the transmission power of the NR network is reduced, the The SAR of the terminal device also has the risk of exceeding the standard. Therefore, the terminal device can choose to disconnect from the NR network and only keep the connection to the LTE network.

Optionally, in a specific embodiment, the terminal device reduces the transmission power of the first network and/or the second network, so that the reduced transmission power of the first network and the second network The transmit power satisfies the following condition: P ₁ ×D _N1 +P ₂ ×D _N2 ≤P _max ×D _max , where P ₁ , P ₂ , and P _max are all linear power values.

That is to say, in the embodiment of the present application, when the SAR of the terminal device has the risk of exceeding the standard, the terminal device can choose not to use or reduce the use of the secondary network for data transmission, thereby reducing the contribution of the secondary network to the SAR of the terminal device quantity.

Similarly, for a network device, when the SAR of the terminal device may exceed the standard, the network device may choose to reduce the uplink ratio of the secondary network, thereby reducing the contribution of the secondary network to the SAR of the terminal device.

Optionally, in this embodiment of the present application, the uplink proportion of the NR network is scheduled by a network device, or determined by the terminal device independently. That is, the uplink transmission of the terminal device may be based on the uplink transmission scheduled by the network device, or may also be the uplink transmission independently initiated by the terminal device.

It should be noted that the uplink proportion in the embodiment of the present application can be considered as the proportion of time domain resources that can be used for uplink transmission in a time unit. Optionally, a time unit can be one or more subframes, or It may be one or more time slots, or may be one or more mini-slots, etc., which is not limited in this embodiment of the present application. Assuming that there are 10 time slots in a subframe, if 3 time slots among the 10 time slots can be used for uplink transmission and 7 time slots can be used for downlink transmission, the uplink ratio can be 30%.

It should be understood that in this embodiment of the present application, similar indicators such as the uplink-downlink ratio (that is, the ratio of resources used for uplink transmission to resources used for downlink transmission in a time unit) can also be used to determine whether to reduce the SAR, which is not limited in this embodiment of the present application.

Above, in conjunction with FIG. 2, the wireless communication method of the embodiment of the present application is described in detail from the perspective of the terminal device. The following describes the wireless communication method of the embodiment of the present application in detail from the perspective of the network device in conjunction with FIG. 3. It should be understood that , the description on the network device side corresponds to the description on the terminal device side, and similar descriptions may refer to the foregoing embodiments.

FIG. 3 is a wireless communication method according to another embodiment of the present application. The method 300 can be executed by a network device in the communication system shown in FIG. 1 , and the network device can provide services for the first network and the second network at the same time, As shown in Figure 3, the method 300 may include the following:

S310. The network device receives the maximum equivalent uplink ratio reported by the terminal device, wherein the maximum equivalent uplink ratio is when the total transmission power of the first network and the second network is the maximum transmission power, the The corresponding equivalent uplink ratio when the electromagnetic wave specific absorption ratio SAR of the terminal equipment reaches a predetermined value;

S320. The network device controls the uplink ratio of the first network and/or the uplink ratio of the second network, so that the equivalent uplink ratio of the terminal device is less than or equal to the maximum equivalent uplink ratio Proportion.

For the manner of determining the maximum equivalent uplink ratio, reference may be made to the relevant descriptions of the foregoing embodiments, which will not be repeated here.

When the network device receives the maximum equivalent uplink ratio reported by the terminal device, it may control the uplink ratio of the first network and/or the uplink ratio of the second network so that the equivalent uplink ratio of the terminal device The ratio is less than or equal to the maximum equivalent uplink ratio, so that the problem of SAR exceeding the standard of the terminal device can be avoided.

It should be understood that the method for determining the equivalent uplink ratio of the terminal device here can refer to the method for determining the equivalent uplink ratio D _en of the terminal device in the foregoing embodiments, that is, the network device can determine the terminal device in a similar manner. The equivalent uplink ratio of the terminal device is further controlled by controlling the uplink ratio of the first network and/or the uplink ratio of the second network so that the equivalent uplink ratio of the terminal device is less than or equal to the maximum equivalent uplink ratio For the sake of brevity, it will not be repeated here.

It can be seen from formula (3) that the equivalent uplink ratio of the terminal device is directly proportional to the uplink ratio and transmit power of the first network, and the uplink ratio and transmit power of the second network. Therefore, by reducing the uplink ratio of the first network The uplink ratio and transmit power, and at least one of the uplink ratio and the transmit power of the second network are proportional, can achieve the purpose of reducing the equivalent uplink ratio of the terminal device, thereby reducing the SAR of the terminal device.

Hereinafter, description will be made by taking the first network as an LTE network and the second network as an NR network as an example, but this embodiment of the present application is not limited thereto.

Optionally, in some specific cases, since the uplink ratio of the LTE network is usually configured statically or semi-statically, the network device can reduce the equivalent uplink ratio of the terminal device by adjusting the uplink ratio of the NR network , specifically, the uplink ratio of the NR network needs to satisfy the aforementioned formula (4). Therefore, in order to avoid the problem that the SAR of the terminal equipment exceeds the standard, the network equipment needs to control it to satisfy the formula (4) when scheduling the uplink ratio of the NR network.

Optionally, in a specific embodiment, if both the transmit power of the first network and the transmit power of the second network are 1/2 of the maximum transmit power, that is, P ₁ =P ₂ =P _max /2, for example, P ₁ and P ₂ are both 23dBm, and P _max is 26dBm, then the maximum uplink ratio of the second network can be simplified as D _N2-max =2D _max -D _N1 .

Optionally, the first network is a Long Term Evolution LTE network, the second network is a New Wireless NR network, and the first network and the second network work in the same frequency band.

Above, the method embodiment of the present application is described in detail in conjunction with FIG. 2 to FIG. 3 , and the device embodiment of the present application is described in detail below in conjunction with FIG. 4 to FIG. 8 . It should be understood that the device embodiment and the method embodiment correspond to each other, similar to The description can refer to the method embodiment.

FIG. 4 is a schematic block diagram of a terminal device provided in an embodiment of the present application. The terminal device 400 establishes connections with the first network and the second network at the same time. As shown in FIG. 4 , the terminal device 400 includes:

A processing module 410, configured to determine a corresponding maximum equivalent uplink ratio when the total transmission power of the first network and the second network is the maximum transmission power, wherein, when the maximum equivalent uplink ratio is reached, The electromagnetic wave specific absorption ratio SAR of the terminal device reaches a predetermined value;

The communication module 420 is configured to report the maximum equivalent uplink proportion to the network device.

Optionally, in some embodiments, the processing module 410 is further configured to:

When the uplink proportion of the second network scheduled by the network device is greater than the maximum uplink proportion of the second network, reduce the total transmission power of the first network and the second network, so that the The SAR of the terminal device is less than or equal to the predetermined value, wherein the maximum uplink proportion of the second network is determined according to the maximum equivalent uplink proportion.

Optionally, in some embodiments, the processing module 410 is specifically configured to:

reducing the transmit power of the first network and/or the second network, so that the reduced transmit power of the first network and the second network satisfies the following condition: P ₁ ×D _N1 +P ₂ × D _N2 ≤P _max ×D _max

Wherein, the D _N1 is the uplink ratio of the first network, the D _N2 is the uplink ratio of the second network, the D _max is the maximum equivalent uplink ratio, and the P1 is The power value of the transmission power of the first network, the P ₂ is the power value of the transmission power of the second network, and the P _max is the power value of the maximum transmission power.

Optionally, in some embodiments, the processing module 410 is further configured to:

When reducing the total transmission power, the transmission power of the second network is preferentially reduced.

Optionally, in some embodiments, the processing module 410 is further configured to:

The connection with the second network is disconnected, and only the connection with the first network is kept.

Optionally, in some embodiments, the processing module 410 is further configured to:

Determine the maximum uplink proportion of the second network according to the uplink proportion of the first network and the maximum equivalent uplink proportion.

Optionally, in some embodiments, the processing module 410 is further configured to:

Determine the maximum uplink proportion of the second network according to the uplink proportion and transmit power of the first network, in combination with the maximum transmit power and the maximum equivalent uplink proportion.

Optionally, in some embodiments, the processing module 410 is specifically configured to: determine the maximum uplink proportion of the second network according to the following formula: D _N2-max =[D _max -D _N1 *(P ₁ /P _max )]/(1-P ₁ /P _max )

Wherein, the D _N2-max is the maximum uplink ratio of the second network, the D _N1 is the current uplink ratio of the first network, and the D _max is the maximum equivalent uplink ratio, The P ₁ is a power value of the current transmission power of the first network, and the P _max is a power value of the maximum transmission power.

Optionally, in some embodiments, if both the transmit power of the first network and the transmit power of the second network are 1/2 of the maximum transmit power, the maximum uplink ratio of the second network D _N2-max = 2D _max -D _N1 .

Optionally, in some embodiments, the processing module 410 is further configured to:

Setting the transmit power of the first network to a first transmit power, and setting the transmit power of the second network to a second transmit power, wherein the sum of the first transmit power and the second transmit power is the maximum transmit power; under the first transmit power and the second transmit power, measure the maximum value of the radiated electric field intensity of the terminal device to the human body;

A ratio of the maximum electric field strength to the maximum value of the radiation electric field strength is determined as the maximum equivalent uplink proportion, where the maximum electric field strength is the electric field strength corresponding to the predetermined value.

Optionally, in some embodiments, the first network is a Long Term Evolution LTE network, the second network is a new wireless NR network, and the first network and the second network work in the same frequency band.

FIG. 5 is a schematic block diagram of a network device provided in an embodiment of the present application. The network device 500 provides services for the first network and the second network at the same time. The network device 500 includes:

The communication module 510 is configured to receive the maximum equivalent uplink ratio reported by the terminal device, where the maximum equivalent uplink ratio is when the total transmission power of the first network and the second network is the maximum transmission power, The corresponding equivalent uplink ratio when the electromagnetic wave specific absorption ratio SAR of the terminal device reaches a predetermined value;

A processing module 520, configured to control the uplink ratio of the first network and/or the uplink ratio of the second network, so that the equivalent uplink ratio of the terminal device is less than or equal to the maximum equivalent uplink ratio Proportion.

Optionally, in some embodiments, the processing module 520 is specifically configured to:

Determine the maximum uplink ratio of the second network according to the current uplink ratio of the first network and the maximum equivalent uplink ratio; control the uplink ratio of the second network to not exceed the second network ratio The maximum uplink ratio of .

Optionally, in some embodiments, the processing module 520 is further configured to:

Determine the maximum uplink proportion of the second network according to the uplink proportion and transmit power of the first network, in combination with the maximum transmit power and the maximum equivalent uplink proportion.

Optionally, in some embodiments, the processing module 520 is specifically configured to: determine the maximum uplink proportion of the second network according to the following formula: D _N2-max =[D _max -D _N1 *(P ₁ /P _max )]/(1-P ₁ /P _max )

Wherein, the D _N2-max is the maximum uplink ratio of the second network, the D _N1 is the current uplink ratio of the first network, and the D _max is the maximum equivalent uplink ratio, The P ₁ is a power value of the current transmission power of the first network, and the P _max is a power value of the maximum transmission power.

Optionally, in some embodiments, if both the transmit power of the first network and the transmit power of the second network are 1/2 of the maximum transmit power, the maximum uplink ratio of the second network D _N2-max = 2D _max -D _N1 .

Optionally, in some embodiments, the processing module 520 is further configured to: determine the equivalent uplink proportion of the terminal device according to the following formula: D _en =D _N1 *P ₁ /P _max +D _N2 * P ₂ /P _max

Wherein, the D _en is the equivalent uplink ratio of the terminal device, the D _N1 is the current uplink ratio of the first network, and the D _N2 is the current uplink ratio of the second network, The P ₁ is the power value of the current transmission power of the first network, the P ₂ is the power value of the current transmission power of the second network, and the P _max is the power value of the maximum transmission power.

Optionally, in some embodiments, the first network is a Long Term Evolution LTE network, the second network is a new wireless NR network, and the first network and the second network work in the same frequency band.

FIG. 6 is a schematic structural diagram of a communication device 600 provided in an embodiment of the present application. The communication device 600 shown in FIG. 6 includes a processor 610, and the processor 610 can invoke and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 6 , the communication device 600 may further include a memory 620 . Wherein, the processor 610 can invoke and run a computer program from the memory 620, so as to implement the method in the embodiment of the present application.

Wherein, the memory 620 may be an independent device independent of the processor 610 , or may be integrated in the processor 610 .

Optionally, as shown in FIG. 6, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, to send information or data to other devices, or receive other Information or data sent by the device.

Wherein, the transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include antennas, and the number of antennas may be one or more.

Optionally, the communication device 600 may specifically be a terminal device in the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity, details are not repeated here. .

FIG. 7 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 700 shown in FIG. 7 includes a processor 710, and the processor 710 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 7 , the chip 700 may further include a memory 720 . Wherein, the processor 710 can invoke and run a computer program from the memory 720, so as to implement the method in the embodiment of the present application.

Wherein, the memory 720 may be an independent device independent of the processor 710 , or may be integrated in the processor 710 .

Optionally, the chip 700 may also include an input interface 730 . Wherein, the processor 710 may control the input interface 730 to communicate with other devices or chips, specifically, may obtain information or data sent by other devices or chips.

Optionally, the chip 700 may also include an output interface 740 . Wherein, the processor 710 can control the output interface 740 to communicate with other devices or chips, specifically, can output information or data to other devices or chips.

Optionally, the chip can be applied to the terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the sending node in the methods of the embodiments of the present application. For the sake of brevity, details are not repeated here.

It should be understood that the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.

FIG. 8 is a schematic block diagram of a communication system 900 provided by an embodiment of the present application. As shown in FIG. 8 , the communication system 900 includes a terminal device 910 and a network device 920 .

Wherein, the terminal device 910 can be used to realize the corresponding functions realized by the terminal device in the above method, and the network device 920 can be used to realize the corresponding functions realized by the network device in the above method. .

It should be understood that the processor in the embodiment of the present application may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable Logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps, and logic block diagrams disclosed in the embodiments of the present application may be implemented or executed. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash. The volatile memory can be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synchlink DRAM, SLDRAM) And direct memory bus random access memory (DirectRambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

It should be understood that the above-mentioned memory is illustrative but not restrictive. For example, the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is, the memory in the embodiments of the present application is intended to include, but not be limited to, these and any other suitable types of memory.

The embodiment of the present application also provides a computer-readable storage medium for storing computer programs.

Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the methods of the embodiments of the present application. For brevity, here No longer.

Optionally, the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application , for the sake of brevity, it is not repeated here.

The embodiment of the present application also provides a computer program product, including computer program instructions.

Optionally, the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, the Let me repeat.

Optionally, the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the methods of the embodiments of the present application, For the sake of brevity, details are not repeated here.

The embodiment of the present application also provides a computer program.

Optionally, the computer program can be applied to the network device in the embodiment of the present application. When the computer program is run on the computer, the computer executes the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity , which will not be repeated here.

Optionally, the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application. When the computer program is run on the computer, the computer executes each method in the embodiment of the present application to be implemented by the mobile terminal/terminal device For the sake of brevity, the corresponding process will not be repeated here.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other various media that can store program codes. .

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (33)

1. A method for wireless communication, characterized in that it is applied to a terminal device, and the terminal device establishes a connection with the first network and the second network at the same time, the method comprising: The terminal device determines a corresponding maximum equivalent uplink ratio when the total transmission power of the first network and the second network is the maximum transmission power, wherein, when the maximum equivalent uplink ratio is reached, the The electromagnetic wave specific absorption ratio SAR of the terminal equipment reaches the predetermined value; The terminal device reports the maximum equivalent uplink ratio to the network device; Wherein, the method also includes: When the uplink ratio of the second network scheduled by the network device is greater than the maximum uplink ratio of the second network, the terminal device reduces the total transmit power of the first network and the second network, so that the SAR of the terminal device is less than or equal to the predetermined value, wherein the maximum uplink ratio of the second network is determined according to the maximum equivalent uplink ratio; Wherein, the terminal device reduces the total transmission power of the first network and the second network, including: When reducing the total transmission power, the terminal device preferentially reduces the transmission power of the second network; Wherein, the first network is a long term evolution LTE network, the second network is a new wireless NR network, and the first network and the second network work in the same frequency band. 2. The method according to claim 1, wherein the terminal device reduces the total transmission power of the first network and the second network, further comprising: The terminal device reduces the transmit power of the first network and the second network, so that the reduced transmit power of the first network and the second network meets the following conditions: P ₁ ×D _N1 +P ₂ ×D _N2 ≤P _max ×D _max Wherein, the D _N1 is the uplink ratio of the first network, the D _N2 is the uplink ratio of the second network, the D _max is the maximum equivalent uplink ratio, and the P ₁ is the power value of the transmission power of the first network, the P ₂ is the power value of the transmission power of the second network, and the P _max is the power value of the maximum transmission power. 3. The method according to claim 1 or 2, wherein when the terminal device reduces the total transmission power, it preferentially reduces the transmission power of the second network, including: The terminal device disconnects from the second network, and only keeps the connection from the first network. 4. method according to claim 1 or 2, is characterized in that, described method also comprises: The terminal device determines the maximum uplink proportion of the second network according to the uplink proportion of the first network and the maximum equivalent uplink proportion. 5. The method according to claim 4, wherein the terminal device determines the maximum uplink ratio of the second network according to the uplink ratio of the first network and the maximum equivalent uplink ratio ,include: The terminal device determines the maximum uplink proportion of the second network according to the uplink proportion and transmit power of the first network, in combination with the maximum transmit power and the maximum equivalent uplink proportion. 6. The method according to claim 5, wherein the terminal device determines according to the uplink ratio and transmit power of the first network, in combination with the maximum transmit power and the maximum equivalent uplink ratio The maximum uplink ratio of the second network includes: The terminal device determines the maximum uplink ratio of the second network according to the following formula: D _N2-max ＝[D _max -D _N1 *(P ₁ /P _max )]/(1-P ₁ /P _max ) Wherein, the D _N2-max is the maximum uplink ratio of the second network, the D _N1 is the current uplink ratio of the first network, and the D _max is the maximum equivalent uplink ratio, The P ₁ is a power value of the current transmission power of the first network, and the P _max is a power value of the maximum transmission power. 7. The method according to claim 6, wherein if both the transmit power of the first network and the transmit power of the second network are 1/2 of the maximum transmit power, the second network The maximum uplink ratio D _N2-max = 2D _max -D _N1 . 8. The method according to claim 1 or 2, wherein the terminal device determines the corresponding maximum equivalent uplink ratio when the total transmission power of the first network and the second network is the maximum transmission power ,include: Setting the transmit power of the first network to a first transmit power, and setting the transmit power of the second network to a second transmit power, wherein the sum of the first transmit power and the second transmit power is the maximum transmit power; Under the first transmit power and the second transmit power, measure the maximum value of the radiated electric field intensity of the terminal device to the human body; A ratio of the maximum electric field strength to the maximum value of the radiation electric field strength is determined as the maximum equivalent uplink proportion, where the maximum electric field strength is the electric field strength corresponding to the predetermined value. 9. A method for wireless communication, characterized in that it is applied to a network device, and the network device provides services for the first network and the second network at the same time, the method comprising: The network device receives the maximum equivalent uplink ratio reported by the terminal device, wherein the maximum equivalent uplink ratio is when the total transmission power of the first network and the second network is the maximum transmission power, the terminal device The corresponding equivalent uplink proportion when the electromagnetic wave specific absorption ratio SAR reaches a predetermined value; The network device controls the uplink ratio of the first network and/or the uplink ratio of the second network, so that the equivalent uplink ratio of the terminal device is less than or equal to the maximum equivalent uplink ratio ; Wherein, the network device controls the uplink ratio of the first network and/or the uplink ratio of the second network, so that the equivalent uplink ratio of the terminal device is less than or equal to the maximum equivalent uplink ratio proportion, including: The network device determines the maximum uplink proportion of the second network according to the current uplink proportion of the first network and the maximum equivalent uplink proportion; The network device controls the uplink ratio of the second network to not exceed the maximum uplink ratio of the second network; Wherein, the first network is a long term evolution LTE network, the second network is a new wireless NR network, and the first network and the second network work in the same frequency band. 10. The method according to claim 9, wherein the network device determines the maximum uplink ratio of the second network according to the current uplink ratio of the first network and the maximum equivalent uplink ratio. than, including: The network device determines the maximum uplink proportion of the second network according to the uplink proportion and transmit power of the first network, in combination with the maximum transmit power and the maximum equivalent uplink proportion. 11. The method according to claim 10, wherein the network device determines according to the uplink ratio and transmit power of the first network, in combination with the maximum transmit power and the maximum equivalent uplink ratio The maximum uplink ratio of the second network includes: The network device determines the maximum uplink ratio of the second network according to the following formula: D _N2-max ＝[D _max -D _N1 *(P ₁ /P _max )]/(1-P ₁ /P _max ) Wherein, D _N2-max is the maximum uplink ratio of the second network, D _N1 is the current uplink ratio of the first network, D _max is the maximum equivalent uplink ratio, and _P1 is the first uplink ratio. A power value of the current transmit power of the network, and the P _max is the power value of the maximum transmit power. 12. The method according to claim 11, wherein if both the transmit power of the first network and the transmit power of the second network are 1/2 of the maximum transmit power, the second network The maximum uplink ratio D _N2-max = 2D _max -D _N1 . 13. The method according to any one of claims 9 to 12, further comprising: The network device determines the equivalent uplink ratio of the terminal device according to the following formula: D _en ＝D _N1 *P ₁ /P _max +D _N2 *P ₂ /P _max Wherein, the D _en is the equivalent uplink ratio of the terminal device, the D _N1 is the current uplink ratio of the first network, and the D _N2 is the current uplink ratio of the second network, The P ₁ is the power value of the current transmission power of the first network, the P ₂ is the power value of the current transmission power of the second network, and the P _max is the power value of the maximum transmission power. 14. A terminal device, characterized in that the terminal device establishes connections with the first network and the second network at the same time, and the terminal device includes: A processing module, configured to determine a maximum equivalent uplink ratio corresponding to when the total transmission power of the first network and the second network is the maximum transmission power, wherein, when the maximum equivalent uplink ratio is reached, the The electromagnetic wave specific absorption ratio SAR of the terminal equipment reaches a predetermined value; A communication module, configured to report the maximum equivalent uplink proportion to the network device; Wherein, the processing module is also used for: When the uplink proportion of the second network scheduled by the network device is greater than the maximum uplink proportion of the second network, reduce the total transmission power of the first network and the second network, so that the The SAR of the terminal device is less than or equal to the predetermined value, wherein the maximum uplink ratio of the second network is determined according to the maximum equivalent uplink ratio; Wherein, the processing module is also used for: When reducing the total transmission power, preferentially reduce the transmission power of the second network; Wherein, the first network is a long term evolution LTE network, the second network is a new wireless NR network, and the first network and the second network work in the same frequency band. 15. The terminal device according to claim 14, wherein the processing module is specifically used for: reducing the transmit power of the first network and the second network, so that the reduced transmit power of the first network and the second network satisfies the following conditions: P ₁ ×D _N1 +P ₂ ×D _N2 ≤P _max ×D _max Wherein, the D _N1 is the uplink ratio of the first network, the D _N2 is the uplink ratio of the second network, the D _max is the maximum equivalent uplink ratio, and the P ₁ is the power value of the transmission power of the first network, the P ₂ is the power value of the transmission power of the second network, and the P _max is the power value of the maximum transmission power. 16. The terminal device according to claim 14 or 15, wherein the processing module is further used for: The connection with the second network is disconnected, and only the connection with the first network is kept. 17. The terminal device according to claim 14 or 15, wherein the processing module is further used for: Determine the maximum uplink proportion of the second network according to the uplink proportion of the first network and the maximum equivalent uplink proportion. 18. The terminal device according to claim 17, wherein the processing module is further used for: Determine the maximum uplink proportion of the second network according to the uplink proportion and transmit power of the first network, in combination with the maximum transmit power and the maximum equivalent uplink proportion. 19. The terminal device according to claim 18, wherein the processing module is specifically configured to: determine the maximum uplink ratio of the second network according to the following formula: D _N2-max ＝[D _max -D _N1 *(P ₁ /P _max )]/(1-P ₁ /P _max ) Wherein, the D _N2-max is the maximum uplink ratio of the second network, the D _N1 is the current uplink ratio of the first network, and the D _max is the maximum equivalent uplink ratio, The P ₁ is a power value of the current transmission power of the first network, and the P _max is a power value of the maximum transmission power. 20. The terminal device according to claim 19, wherein if both the transmit power of the first network and the transmit power of the second network are 1/2 of the maximum transmit power, the second The maximum uplink ratio of the network D _N2-max = 2D _max -D _N1 . 21. The terminal device according to claim 14 or 15, wherein the processing module is further used for: Setting the transmit power of the first network to a first transmit power, and setting the transmit power of the second network to a second transmit power, wherein the sum of the first transmit power and the second transmit power is the maximum transmit power; Under the first transmit power and the second transmit power, measure the maximum value of the radiated electric field intensity of the terminal device to the human body; A ratio of the maximum electric field strength to the maximum value of the radiation electric field strength is determined as the maximum equivalent uplink proportion, where the maximum electric field strength is the electric field strength corresponding to the predetermined value. 22. A network device, characterized in that the network device provides services for the first network and the second network at the same time, and the network device includes: The communication module is configured to receive the maximum equivalent uplink ratio reported by the terminal device, wherein the maximum equivalent uplink ratio is when the total transmission power of the first network and the second network is the maximum transmission power, the The corresponding equivalent uplink ratio when the electromagnetic wave specific absorption ratio SAR of the above-mentioned terminal equipment reaches a predetermined value; A processing module, configured to control the uplink ratio of the first network and/or the uplink ratio of the second network, so that the equivalent uplink ratio of the terminal device is less than or equal to the maximum equivalent uplink ratio Compare; The processing module is specifically used for: determining the maximum uplink proportion of the second network according to the current uplink proportion of the first network and the maximum equivalent uplink proportion; controlling the uplink ratio of the second network to not exceed the maximum uplink ratio of the second network; Wherein, the first network is a long term evolution LTE network, the second network is a new wireless NR network, and the first network and the second network work in the same frequency band. 23. The network device according to claim 22, wherein the processing module is further used for: Determine the maximum uplink proportion of the second network according to the uplink proportion and transmit power of the first network, in combination with the maximum transmit power and the maximum equivalent uplink proportion. 24. The network device according to claim 23, wherein the processing module is specifically configured to: Determine the maximum uplink ratio of the second network according to the following formula: D _N2-max ＝[D _max -D _N1 *(P ₁ /P _max )]/(1-P ₁ /P _max ) Wherein, the D _N2-max is the maximum uplink ratio of the second network, the D _N1 is the current uplink ratio of the first network, and the D _max is the maximum equivalent uplink ratio, The P ₁ is a power value of the current transmission power of the first network, and the P _max is a power value of the maximum transmission power. 25. The network device according to claim 24, wherein if both the transmit power of the first network and the transmit power of the second network are 1/2 of the maximum transmit power, the second The maximum uplink ratio of the network D _N2-max = 2D _max - D _N1 . 26. The network device according to any one of claims 22 to 25, wherein the processing module is further configured to: Determine the equivalent uplink ratio of the terminal device according to the following formula: D _en ＝D _N1 *P ₁ /P _max +D _N2 *P ₂ /P _max Wherein, the D _en is the equivalent uplink ratio of the terminal device, the D _N1 is the current uplink ratio of the first network, and the D _N2 is the current uplink ratio of the second network, The P ₁ is the power value of the current transmission power of the first network, the P ₂ is the power value of the current transmission power of the second network, and the P _max is the power value of the maximum transmission power. 27. A terminal device, characterized in that it comprises: a processor and a memory, the memory is used to store computer programs, the processor is used to invoke and run the computer programs stored in the memory, and execute the computer program according to claims 1 to 8 any one of the methods described. 28. A chip, characterized by comprising: a processor, configured to invoke and run a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 1 to 8. 29. A computer-readable storage medium, characterized by being used for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 1 to 8. 30. A network device, characterized in that it comprises: a processor and a memory, the memory is used to store computer programs, the processor is used to invoke and run the computer programs stored in the memory, and perform the tasks according to claims 9 to 13 any one of the methods described. 31. A chip, characterized by comprising: a processor, configured to invoke and run a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 9 to 13. 32. A computer-readable storage medium, characterized by being used for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 9 to 13. 33. A communication system, comprising: A terminal device as claimed in any one of claims 14 to 21; and A network device as claimed in any one of claims 22 to 26.

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