A communication method and related device

Abstract

Embodiments of the present application disclose a communication method and related devices. The method comprises: a terminal device determining a first uplink transmission time ratio X on a time division duplex (TDD) frequency band; determining a second uplink transmission time ratio Y according to the first uplink transmission time ratio X, the second uplink transmission time ratio Y being a maximum uplink transmission time ratio of the terminal device on a supplementary uplink (SUL) frequency band; and sending a first message to a network device, the first message being used for indicating the second uplink transmission time ratio Y, wherein the terminal device is configured to use the TDD frequency band and the SUL frequency band to transmit uplink data. By using the embodiments of the present application, the efficiency of network scheduling can be improved, and the transmission efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the network technical field, and particularly relates to a communication method and related equipment. BACKGROUND

[0002] The regulatory organizations of each country have very strict requirements for the influence of the radio frequency energy radiation of a mobile phone type user equipment (UE) on the human body, which is usually specified by specific absorption rate (SAR). The SAR specifies that the accumulated radiation energy of the UE on the human body within a certain time cannot exceed the specified maximum value. Due to the wide use of the SAR, the 3rd generation partnership project (3GPP) has a standardized solution for the UE to meet the SAR regulation. For a power class 3 (PC3) UE, that is, a UE with a maximum allowed transmission power of 23 dBm, the 3GPP considers that no additional solution is needed to meet the SAR requirements of the regulations of each country. Therefore, when researching the SAR solution of a PC2 UE, that is, a UE with a maximum allowed transmission power of 26 dBm, the average transmission power less than or equal to 23 dBm within a certain time has been used as the target assumption of the standardized solution.

[0003] Since the network equipment cannot determine the capability of the PC2 UE to meet the SAR requirements on the supplemental uplink (SUL) frequency band combination, the efficiency of the network equipment to schedule the PC2 UE is affected, and the transmission efficiency is low. SUMMARY

[0004] Embodiments of the present application provide a communication method and related equipment, which can improve the uplink transmission efficiency.

[0005] In a first aspect, an embodiment of the present application provides a communication method, comprising: determining, by a terminal device, a first uplink transmission time ratio X on a time division duplex (TDD) frequency band; determining, according to the first uplink transmission time ratio X, a second uplink transmission time ratio Y, the second uplink transmission time ratio Y being a maximum uplink transmission time ratio of the terminal device on a supplementary uplink (SUL) frequency band; and sending, to a network device, a first message, the first message being used to indicate the second uplink transmission time ratio Y, wherein the terminal device is configured to transmit uplink data using the TDD frequency band and the SUL frequency band. The network device can accurately determine the capability of the terminal device satisfying a specific absorption rate (SAR) requirement according to the maximum uplink transmission time ratio reported by the terminal device on the SUL frequency band, so as to schedule the terminal device to transmit uplink data on the TDD frequency band and the SUL frequency band under the capability of satisfying the SAR requirement, improve the efficiency of uplink scheduling, and improve the uplink transmission efficiency.

[0006] In a possible design, the terminal device receives a system message from the network device, the system message comprising an uplink-downlink time slot configuration on the TDD frequency band; and the terminal device determines the first uplink transmission time ratio X according to the uplink-downlink time slot configuration. The maximum uplink transmission time ratio on the TDD frequency band is determined through the system message, so as to accurately determine the capability of the terminal device satisfying the SAR requirement.

[0007] In another possible design, the first message is further used to indicate that the terminal device preferentially satisfies uplink scheduling on the TDD frequency band. The efficiency of uplink scheduling is improved by implicitly indicating that the terminal device preferentially satisfies uplink scheduling on the TDD frequency band.

[0008] In another possible design, the terminal device transmits uplink data on the TDD frequency band according to the first uplink transmission time ratio X, and transmits uplink data on the SUL frequency band according to the second uplink transmission time ratio Y. The uplink data is transmitted according to the capability of most strongly satisfying the SAR requirement, so as to improve the efficiency of uplink transmission.

[0009] In another possible design, when 0<=X<=1, Y<=(1-X). The efficiency of uplink scheduling is improved by determining the maximum uplink transmission time ratio on the SUL frequency band.

[0010] In another possible design, when Y<0, the first message is further used to indicate that the terminal device is unable to send first uplink data on the SUL frequency band, and the terminal device transmits second uplink data on the TDD frequency band according to (X+Y). The capability of the terminal device on the SUL frequency band and the TDD frequency band is determined by indicating the value of the second uplink transmission time ratio Y, so as to improve the accuracy of network scheduling.

[0011] In a second aspect, an embodiment of the present application provides a communication method. The method comprises: receiving, by a network device, a first message from a terminal device, the first message being used to indicate a second uplink transmission time ratio Y, the second uplink transmission time ratio Y being a maximum uplink transmission time ratio of the terminal device on a supplementary uplink (SUL) frequency band; and scheduling, by the network device, the terminal device to transmit uplink data on a time division duplex (TDD) frequency band and the SUL frequency band according to the second uplink transmission time ratio Y. The network device can accurately determine the capability of the terminal device satisfying a specific absorption rate (SAR) requirement by receiving the maximum uplink transmission time ratio reported by the terminal device on the SUL frequency band. Thus, the terminal device is scheduled to transmit uplink data on the TDD frequency band and the SUL frequency band under the capability of satisfying the SAR requirement, the efficiency of uplink scheduling is improved, and the uplink transmission efficiency is improved.

[0012] In a possible design, the network device sends a system message to the terminal device, the system message comprising an uplink-downlink time slot configuration on the TDD frequency band, the uplink-downlink time slot configuration being used to determine a first uplink transmission time ratio X on the TDD frequency band, and the first uplink transmission time ratio X being used to determine the second uplink transmission time ratio Y. The maximum uplink transmission time ratio on the TDD frequency band is determined through the system message, so as to accurately determine the capability of the terminal device satisfying the SAR requirement.

[0013] In another possible design, the network device determines, according to the first message, that the terminal device preferentially satisfies uplink scheduling on the TDD frequency band. The efficiency of uplink scheduling is improved by implicitly indicating that the terminal device preferentially satisfies uplink scheduling on the TDD frequency band.

[0014] In another possible design, the network device schedules the terminal device to transmit uplink data on the TDD frequency band according to the first uplink transmission time ratio X, and to transmit uplink data on the SUL frequency band according to the second uplink transmission time ratio Y. The uplink data is transmitted according to the capability of most strongly satisfying the SAR requirement, and the efficiency of uplink transmission is improved.

[0015] In another possible design, when 0<=X<=1, Y<=(1-X). The efficiency of uplink scheduling is improved by determining the maximum uplink transmission time ratio on the SUL frequency band.

[0016] In another possible design, when Y<0, the first message is used to indicate that the terminal device cannot send first uplink data on the SUL frequency band, and the terminal device sends second uplink data on the TDD frequency band according to (X+Y). The capability of the terminal device on the SUL frequency band and the TDD frequency band is determined by indicating the value of the second uplink transmission time ratio Y, and the accuracy of scheduling is improved.

[0017] In a third aspect, an embodiment of the present application provides a communication method, comprising: determining, by a terminal device, a first uplink transmission time ratio X, the first uplink transmission time ratio X being a maximum uplink transmission time ratio of the terminal device on a time division duplex (TDD) frequency band; and sending, by the terminal device, a first message to a network device, the first message being used to indicate the first uplink transmission time ratio X, wherein the terminal device is configured to transmit uplink data using the TDD frequency band and a supplementary uplink (SUL) frequency band. The network device can accurately determine the capability of the terminal device satisfying a specific absorption rate (SAR) requirement according to the maximum uplink transmission time ratio by reporting, by the terminal device, the maximum uplink transmission time ratio on the TDD frequency band. Therefore, the terminal device is scheduled to transmit uplink data on the TDD frequency band and the SUL frequency band under the capability of satisfying the SAR requirement, the efficiency of uplink scheduling is improved, and the uplink transmission efficiency is improved.

[0018] In another possible design, the first message is further used to indicate that the terminal device preferentially satisfies uplink scheduling on the SUL frequency band. The efficiency of uplink scheduling is improved by implicitly indicating that the uplink scheduling on the SUL frequency band is preferentially satisfied.

[0019] In another possible design, the terminal device transmits uplink data on the TDD frequency band according to the first uplink transmission time ratio X and transmits uplink data on the SUL frequency band according to a second uplink transmission time ratio Y. The efficiency of uplink transmission is improved by transmitting uplink data according to the capability of most strongly satisfying the SAR requirement.

[0020] In another possible design, when 0<=X<=1, 0<=Y<=(1-X). The efficiency of uplink scheduling is improved by determining the maximum uplink transmission time ratio on the SUL frequency band.

[0021] In another possible design, when 1X<=2, the first message is further used to indicate that a maximum transmission power of the terminal device is 29 dBm and that an actual maximum uplink transmission time ratio on the TDD frequency band supported by the terminal device is X / 2. The non-standard 29 dBm UE is enabled to report the capability satisfying the SAR requirement to the network device, and the efficiency of uplink scheduling is improved.

[0022] In a fourth aspect, an embodiment of the present application provides a communication method, comprising: receiving, by a network device, a first message from a terminal device, the first message indicating a first uplink transmission time ratio X, the first uplink transmission time ratio X being a maximum uplink transmission time ratio of the terminal device on a time division duplex (TDD) frequency band; and scheduling, by the network device, the terminal device to transmit uplink data on the TDD frequency band and a supplementary uplink (SUL) frequency band according to the first uplink transmission time ratio X. The network device can accurately determine the capability of the terminal device satisfying a specific absorption rate (SAR) requirement by receiving the maximum uplink transmission time ratio reported by the terminal device on the TDD frequency band. Thus, the terminal device is scheduled to transmit uplink data on the TDD frequency band and the SUL frequency band under the capability satisfying the SAR requirement, and the efficiency of uplink scheduling is improved.

[0023] In a possible design, the network device determines, according to the first message, that the terminal device preferentially satisfies uplink scheduling on the SUL frequency band. The efficiency of uplink scheduling is improved by implicitly indicating that the terminal device preferentially satisfies uplink scheduling on the SUL frequency band.

[0024] In another possible design, the network device schedules the terminal device to transmit uplink data on the TDD frequency band according to the first uplink transmission time ratio X, and to transmit uplink data on the SUL frequency band according to a second uplink transmission time ratio Y. The efficiency of uplink transmission is improved by transmitting uplink data according to the capability most strongly satisfying the SAR requirement.

[0025] In another possible design, when 0<=X<=1, 0<=Y<=(1-X). The efficiency of uplink scheduling is improved by determining the maximum uplink transmission time ratio on the SUL frequency band.

[0026] In another possible design, when 1X<=2, the first message is further used to indicate that the maximum transmit power of the terminal device is 29 dBm, and the terminal device supports an actual maximum uplink transmission time ratio on the TDD frequency band being X / 2. The non-standard 29 dBm UE is enabled to report the capability satisfying the SARS requirement to the network device, and the efficiency of uplink scheduling is improved.

[0027] In a fifth aspect, an embodiment of the present application provides a communication apparatus configured to implement the method and functions performed by the terminal device in the first aspect and the third aspect, and is implemented by hardware / software, and the hardware / software includes modules corresponding to the above functions.

[0028] In a sixth aspect, an embodiment of the present application provides a communication apparatus configured to implement the method and functions performed by the network device in the second aspect and the fourth aspect, and is implemented by hardware / software, and the hardware / software includes modules corresponding to the above functions.

[0029] In a seventh aspect, an embodiment of the present application provides a communication apparatus, which is applied to a terminal device, and can be the terminal device or a chip in the terminal device. The communication apparatus comprises a processor, a memory and a communication bus. The communication bus is configured to realize connection communication between the processor and the memory. The processor executes a program stored in the memory to realize the steps of the first aspect and the third aspect.

[0030] In an eighth aspect, an embodiment of the present application provides a communication apparatus, which is applied to a network device, and can be the network device or a chip in the network device. The communication apparatus comprises a processor, a memory and a communication bus. The communication bus is configured to realize connection communication between the processor and the memory. The processor executes a program stored in the memory to realize the steps of the second aspect and the fourth aspect.

[0031] In a ninth aspect, the present application provides a computer readable storage medium, which stores instructions. When the instructions are executed on a computer, the computer executes the method of any of the aspects.

[0032] In a tenth aspect, the present application provides a computer program product comprising instructions, which, when executed on a computer, cause the computer to execute the method of any of the aspects.

[0033] In an eleventh aspect, an embodiment of the present application provides a chip, which comprises a processor configured to call and execute instructions stored in a memory, so that a communication device installed with the chip executes the method of any of the aspects.

[0034] In a twelfth aspect, an embodiment of the present application provides another chip, which comprises an input interface, an output interface and a processor. Optionally, the chip further comprises a memory. The input interface, the output interface, the processor and the memory are connected through internal connection paths. The processor is configured to execute code in the memory. When the code is executed, the processor is configured to execute the method in any of the aspects.

[0035] In a thirteenth aspect, an embodiment of the present application provides a communication system, which comprises at least one terminal device and at least one network device. The terminal device is configured to execute the steps in the first aspect and the third aspect. The network device is configured to execute the steps in the second aspect and the fourth aspect. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the background art, the drawings needed to be used in the embodiments of the present application or the background art will be described below.

[0037] Figure 1 FIG. 1 is a schematic diagram of an architecture of a communication system provided by an embodiment of the present application.

[0038] Figure 2 This is a flow chart of a communication method provided in an embodiment of the present application;

[0039] Figure 3 This is a flow chart of another communication method provided in an embodiment of the present application;

[0040] Figure 4 This is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0041] Figure 5 is a structural diagram of another communication device provided in an embodiment of the present application;

[0042] Figure 6 This is a schematic diagram of the structure of a terminal device proposed in an embodiment of the present application;

[0043] Figure 7 This is a structural diagram of a network device proposed in an embodiment of the present application. DETAILED DESCRIPTION

[0044] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0045] like Figure 1 As shown, Figure 1Figure 1 shows a schematic diagram of an architecture of a communication system 100 according to an embodiment of the application. The communication system 100 can include a network device 110 and terminal devices 101-106. It should be understood that more or less network devices or terminal devices can be included in the communication system 100 to which the methods according to the embodiments of the application can be applied. The network devices or terminal devices can be hardware, or software divided functionally, or a combination of both. The network devices and the terminal devices can communicate through other devices or network elements. In the communication system 100, the network device 110 can transmit downlink data to the terminal devices 101-106. Of course, the terminal devices 101-106 can also transmit uplink data to the network device 110. The terminal devices 101-106 can be a cellular phone, a smart phone, a portable computer, a handheld communication device, a handheld computing device, a satellite radio, a global positioning system, a personal digital assistant (PDA), and / or any other suitable device for communicating over a wireless communication system 100. Of course, the terminal devices according to the embodiments of the application can include high power UEs (e.g., UEs that support maximum transmit power of 26 dBm or 29 dBm or higher). The network device 110 can be a network device of LTE and / or NR, in particular, a base station (NodeB), an evolved NodeB (eNodeB), a base station in a 5G mobile communication system, a next generation NodeB (gNB), a base station in a future mobile communication system, or an access node in a Wi-Fi system. The communication system 100 can employ a public land mobile network (PLMN), a device-to-device (D2D) network, a machine to machine (M2M) network, an internet of things (IoT), or other networks. In addition, the terminal devices 104-106 can also form a communication system. In the communication system, the terminal device 105 can transmit downlink data to the terminal devices 104 or 106. The methods according to the embodiments of the application can be applied to the communication system 100 shown in Figure 1. Figure 1

[0046] In the field of network technology according to the embodiments of the application, the following frequency band combinations can be included:

[0047] ​SUL band combination (BC): In new radio (NR), a second uplink serving cell for a UE, compared with the traditional uplink, there is no downlink reception coupled on the SUL band. The SUL band combination can include a time division duplexing (TDD) band and an SUL band. The network device can realize the UE to use two different frequency bands for uplink carrier rotation transmission in the same cell by configuring the SUL band combination for the UE. All SUL related band combinations are defined in 38.101-1 and 38.101-3.

[0048] Uplink carrier aggregation (UL CA): Unlike SUL, the network device needs to use the protocol stack of carrier aggregation when configuring uplink carrier aggregation. If the UE supports the corresponding band combination of uplink carrier aggregation, the network device can configure the UE to add a secondary cell and activate the corresponding uplink, so that the uplink of the secondary cell and the uplink of the primary cell form an uplink carrier aggregation.

[0049] LTE and NR dual connectivity (EN-DC): It belongs to the non-standalone (non-standalone) networking architecture. The UE under EN-DC configuration can simultaneously accept the uplink scheduling of the network device on two different bands of LTE and NR. Unlike the two standalone (standalone) networking architectures of SUL and UL CA, for EN-DC, the UE also accepts scheduling on the LTE (4G) band, while for SUL and UL CA, the UE can only accept scheduling on the NR (5G) band.

[0050] 3GPP specifies two types of UEs: PC3 UE and PC2 UE. Among them, PC3 UE is a type of terminal device supporting a maximum transmit power of 23dBm. PC2 UE is a type of terminal device supporting a maximum transmit power of 26dBm. PC2 UE can also be referred to as high power UE (HPUE).

[0051] For the NR UE working in single frequency band, 3GPP currently requires PC2 UE to report its maximum supported uplink transmission time ratio. Since the transmit power of PC2 is twice that of PC3 UE, if the maximum uplink transmission time ratio scheduled by the network device is less than 50%, the UE can meet the requirement that the average transmit power does not exceed 23dBm without any additional scheme, that is, it meets the SAR requirement. Therefore, 3GPP requires PC2 UE to report the maximum uplink transmission time ratio supported in the range of 50%-100%. It can be understood that the greater the uplink transmission time ratio reported by the UE, the stronger the control ability of the UE to the transmit power, and the smaller the limit of the network device to schedule uplink transmission. At the same time, 3GPP stipulates that if the actual uplink transmission time ratio scheduled by the network device exceeds the capability of the UE reported to meet the SAR requirement, the UE is allowed to generate uplink loss, which reflects the limitation on the scheduling of the network device.

[0052] SUL technology plays an important role in the evolution of 5G. By adding a low-frequency pure uplink carrier to the UE, it complements the lack of 5G uplink coverage and greatly improves the uplink coverage and capacity, and provides the most direct help for operators to flexibly deploy 5G. The characteristics of SUL technology are that the network device configures multiple uplink carriers for the UE at the same time, but only schedules the UE to transmit on one of the multiple uplink carriers at the same time, and there is no simultaneous transmission. Therefore, when considering the SAR scheme of PC2 UE working in SUL frequency band combination, there are many differences from the existing uplink SAR scheme of UL CA or EN-DC frequency band combination.

[0053] 3GPP specifies the signaling of the transmit power capability report of PC2 high-power UE:

[0054] For single-band PC2 UE, it is reported through ue-PowerClass per band signaling. For EN-DC combined PC2 UE, it is reported through powerClass per BC signaling and powerClass per BC signaling. For NR CA combined PC2 UE, it is reported through powerClass per BC signaling.

[0055] 3GPP specifies the SAR scheme capability report of PC2 high-power UE:

[0056] For single-band SAR capability, the ratio of the UE's maximum supported uplink transmission time to total transmission time resources (60%-100%) is reported via the maxUplinkDutyCycle-PC2-FR1 per band signaling. For EN-DC and UL CA combined SAR capability, in the TDD+TDD frequency band combination, the duty cycle (dutycycle) for different TDD ratios on the LTE network side is reported via the maxUplinkDutyCycle-interBandENDC-TDD-PC2-r16 signaling. In the FDD+TDD frequency band combination, the combined (dutycycleFDD, dutycycleTDD) is reported.

[0057] The key difference between the SUL band combination and the CA and EN-DC band combinations is that the transmission is carried out alternately on the SUL band and the TDD band instead of concurrently. Since there is no standardized SAR solution in 3GPP to ensure that the network equipment knows the ability of the PC2 UE in the SUL band combination to meet the SAR regulations, that is, the UE cannot report the maximum uplink transmission time ratio on each uplink band it supports, which affects the network equipment's uplink scheduling of the UE and results in low transmission efficiency. In addition, the maximum uplink transmission time ratio supported in the existing reporting method is 100%, and the network equipment cannot distinguish the UE's ability to support a maximum transmission power of more than 26dBm. For example, if the UE can support 29dBm, it cannot further indicate a stronger capability. In order to solve the above technical problems, the embodiments of the present application provide the following solutions.

[0058] like Figure 2 As shown, Figure 2 : This is a flow chart of a communication method provided in an embodiment of the present application. The steps in the embodiment of the present application at least include:

[0059] S201, a network device sends a system message to a terminal device, where the system message includes an uplink and downlink time slot ratio on the TDD frequency band.

[0060] S202: The terminal device determines a first uplink transmission time proportion X on a time division duplex (TDD) frequency band according to the uplink and downlink time slot ratio.

[0061] The first uplink transmission time proportion X is the maximum uplink transmission time proportion of the terminal device on the TDD frequency band. For example, if the uplink and downlink time slot ratio is 2:3, the first uplink transmission time proportion X can be 40%. The first uplink transmission time proportion X represents the ratio of the maximum uplink transmission time supported on the TDD frequency band to all time domain resources within a specific period, while meeting SAR requirements. The specific period can be a period greater than 1 millisecond, typically the frame length of a radio frame, for example 10 milliseconds.

[0062] S203, the terminal device determines a second uplink transmission time ratio Y according to the first uplink transmission time ratio X, the second uplink transmission time ratio Y being a maximum uplink transmission time ratio of the terminal device on a supplementary uplink (SUL) frequency band.

[0063] The second uplink transmission time ratio Y represents a proportion of a maximum uplink transmission time ratio supported on the SUL frequency band in a specific period under the premise of meeting the SAR requirement.

[0064] It should be noted that the terminal device transmits uplink data on the TDD frequency band according to the first uplink transmission time ratio X (maximum value) and transmits uplink data on the SUL frequency band according to the second uplink transmission time ratio Y (maximum value), and the total cumulative transmission power does not exceed a preset threshold, so as to meet the SAR requirement that the accumulated radiation energy of the terminal device to the human body within a certain time cannot exceed the maximum value. The first uplink transmission time ratio X or the second uplink transmission time ratio Y is the capability that meets the SAR requirement.

[0065] In order to meet the requirements of the SAR regulation, when the network device configures the maximum transmission power of the terminal device, the terminal device can control its own transmission power according to the power accumulation algorithm and the power backoff strategy that can be used by itself, so as to meet the requirement that the cumulative transmission power within a certain time does not exceed the preset threshold. The power accumulation algorithm and the power backoff strategy are not specified in the 3GPP standard, allowing flexibility in the design of the terminal device.

[0066] Optionally, when 0<=X<=1, Y<= (1-X), and the value of Y can also be less than 0. In particular, when Y=(1-X), it indicates that the terminal device has the strongest capability, and the network device can schedule any uplink resource of the terminal device. When Y<0, it indicates that the terminal device cannot send the first uplink data on the SUL frequency band, and also cannot send the second uplink data on the TDD frequency band according to the maximum uplink transmission time ratio X. At this time, the terminal device can send the second uplink data on the TDD frequency band according to an uplink transmission time ratio not exceeding (X+Y). For example, when X=0.5 and Y=-0.1, that is, Y<0, the terminal device cannot send the first uplink data on the SUL frequency band, and can send the second uplink data on the TDD frequency band according to an uplink transmission time ratio of 0.3 (not exceeding 0.4).

[0067] S204, the terminal device sends a first message to the network device, the first message being used to indicate the second uplink transmission time ratio Y, wherein the terminal device is configured to transmit uplink data using the TDD frequency band and the SUL frequency band.

[0068] Optionally, the terminal device can send the first message to the network device on the SUL frequency band. After receiving the first message on the SUL frequency band, the network device can determine the second uplink transmission time ratio Y as the maximum uplink transmission time ratio of the terminal device on the SUL frequency band.

[0069] Optionally, after receiving the first message, the network device can schedule the terminal device to transmit the uplink data on the TDD frequency band according to an uplink transmission time ratio not exceeding X, and on the SUL frequency band according to an uplink transmission time ratio not exceeding Y. In particular, the network device can schedule the terminal device to transmit the uplink data on the TDD frequency band according to the first uplink transmission time ratio X, and on the SUL frequency band according to the second uplink transmission time ratio Y, that is, to transmit the uplink data according to the strongest capability.

[0070] Optionally, the terminal device can transmit the uplink data on the TDD frequency band according to an uplink transmission time ratio not exceeding X, and on the SUL frequency band according to an uplink transmission time ratio not exceeding Y. It should be noted that the terminal device sends the uplink data to the network device on the TDD frequency band and the SUL frequency band alternately, that is, not simultaneously.

[0071] Optionally, if the actual transmission time ratio of the terminal device on the TDD frequency band scheduled by the network device exceeds the first uplink transmission time ratio X, or the actual transmission time ratio on the SUL frequency band exceeds the second uplink transmission time ratio Y, the terminal device can be allowed to lose uplink data.

[0072] Optionally, the first message can also be used to schedule the transmit power and the uplink data of the terminal device. For example, if the terminal device does not meet the SAR requirement, the terminal device can be scheduled to reduce the transmit power or reduce the uplink data.

[0073] Optionally, the first message is also used to indicate that the terminal device preferentially meets the uplink scheduling on the TDD frequency band. If the network device receives the first message of the terminal device on the SUL frequency band, the first message indicates the maximum uplink transmission time ratio on the SUL frequency band, which is equivalent to implicitly indicating that the uplink scheduling on the TDD frequency band is preferentially met, and the uplink scheduling on the SUL frequency band is secondarily met.

[0074] Optionally, when Y < 0, the first message is also used to indicate that the terminal device cannot send the first uplink data on the SUL frequency band, and the terminal device can send the second uplink data on the TDD frequency band according to (X+Y).

[0075] The first message may be radio resource configuration (RRC) signaling.

[0076] In the embodiment of the present application, the terminal device reports its maximum uplink transmission time percentage on the SUL band to the network device. The network device can then accurately determine the terminal device's ability to meet SAR requirements based on the maximum uplink transmission time percentage. The network device can then schedule the terminal device to transmit uplink data on the TDD band and the SUL band, based on the ability to meet SAR requirements, thereby improving uplink scheduling efficiency.

[0077] like Figure 3 As shown, Figure 3 : This is a flow chart of another communication method provided in an embodiment of the present application. The steps in the embodiment of the present application at least include:

[0078] S301: The terminal device determines a first uplink transmission time proportion X, where the first uplink transmission time proportion X is a maximum uplink transmission time proportion of the terminal device in a time division duplex (TDD) frequency band.

[0079] The first uplink transmission time proportion X is the maximum uplink transmission time proportion of the terminal device on the TDD frequency band. The first uplink transmission time proportion X indicates the ratio of the maximum uplink transmission time supported on the TDD frequency band to all time domain resources within a specific period, while meeting SAR requirements. The specific period can be a period greater than 1 millisecond, typically the length of a radio frame, for example, 10 milliseconds.

[0080] S302, the terminal device sends a first message to the network device, where the first message is used to indicate the first uplink transmission time proportion X, wherein the terminal device is configured to use the TDD frequency band and the SUL frequency band to transmit uplink data.

[0081] Optionally, the network device may determine a second uplink transmission time proportion Y based on the first uplink transmission time proportion X. The second uplink transmission time proportion Y is the maximum uplink transmission time proportion of the terminal device on the SUL frequency band. The second uplink transmission time proportion Y represents the ratio of the maximum uplink transmission time supported on the SUL frequency band to all uplink time domain resources within a specific period, while meeting SAR requirements.

[0082] It should be noted that the terminal device transmits uplink data on the TDD frequency band according to the first uplink transmission time ratio X (maximum value) and transmits uplink data on the SUL frequency band according to the second uplink transmission time ratio Y (maximum value), and the total cumulative transmission power does not exceed the preset threshold, so as to meet the SAR requirement that the accumulated radiation energy of the terminal device to the human body within a certain time cannot exceed the maximum value. The first uplink transmission time ratio X or the second uplink transmission time ratio Y is the capability that meets the SAR requirement.

[0083] Optionally, when 0<=X<=1, 0<=Y<=(1-X). In particular, when 1X<=2, it indicates that the maximum transmission power of the terminal device is 29dBm. The first message is also used to indicate that the maximum transmission power of the terminal device is 29dBm, and the actual maximum uplink transmission time ratio on the TDD frequency band supported by the terminal device is X / 2. For example, when the terminal device reports X as 1.6 to the network device, that is, 1X<=2, it indicates that the maximum transmission power supported by the terminal device is not 26dBm, but 29dBm. At the same time, the terminal device can transmit uplink data on the TDD frequency band according to an uplink transmission time ratio of not more than 0.8, so as to meet the SAR requirement.

[0084] Optionally, the terminal device can send the first message to the network device on the TDD frequency band. After the network device receives the first message on the TDD frequency band, the first uplink transmission time ratio X can be determined as the maximum uplink transmission time ratio of the terminal device on the TDD frequency band.

[0085] Optionally, if the network device schedules the terminal device to transmit on the TDD frequency band with an actual transmission time ratio exceeding the first uplink transmission time ratio X, or on the SUL frequency band with an actual transmission time ratio exceeding the second uplink transmission time ratio Y, the terminal device can be allowed to lose uplink data.

[0086] Optionally, the first message can also be used to schedule the transmission power and uplink data of the terminal device. For example, if the terminal device does not meet the SAR requirement, the terminal device can be scheduled to reduce the transmission power or reduce the uplink data.

[0087] Optionally, the first message can also be used to indicate that the terminal device preferentially meets the uplink scheduling on the SUL frequency band. If the network device receives the first message of the terminal device on the TDD frequency band, the first message indicates the maximum uplink transmission time ratio on the TDD frequency band, which is equivalent to implicitly indicating that the uplink scheduling on the SUL frequency band is preferentially met, and the uplink scheduling on the TDD frequency band is secondly met.

[0088] Optionally, the first message may also be used to indicate a first uplink transmission time proportion X and a second uplink transmission time proportion Y. The terminal device simultaneously reports the maximum uplink transmission time proportion on the TDD frequency band and the maximum uplink transmission time proportion on the SUL frequency band.

[0089] The first message may be RRC signaling.

[0090] S303: The network device schedules the terminal device to transmit uplink data on the TDD frequency band and the supplementary uplink SUL frequency band according to the first uplink transmission time proportion X.

[0091] Optionally, the network device can schedule the terminal device to transmit the uplink data on the TDD frequency band according to an uplink transmission time ratio not exceeding X, and to transmit the uplink data on the SUL frequency band according to an uplink transmission time ratio not exceeding Y based on the first message.

[0092] In particular, the network device can schedule the terminal device to transmit uplink data according to the first uplink transmission time proportion X on the TDD frequency band, and to transmit uplink data according to the second uplink transmission time proportion Y on the SUL frequency band, that is, to schedule the terminal device to transmit uplink data according to the strongest ability to meet the SAR requirements.

[0093] In the embodiment of the present application, the terminal device reports its maximum uplink transmission time percentage on the TDD band to the network device. The network device can then accurately determine the terminal device's ability to meet SAR requirements based on the maximum uplink transmission time percentage. The network device can then schedule the terminal device to transmit uplink data on the TDD band and the SUL band based on the ability to meet SAR requirements, thereby improving the efficiency of uplink scheduling.

[0094] The above describes in detail the method of the embodiment of the present application, and the following provides an apparatus of the embodiment of the present application.

[0095] like Figure 4 As shown, Figure 4 4 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application. The communication device can be a terminal device, or a chip or processing system in the terminal device. The device can be used to implement any method and function related to the terminal device in any of the aforementioned embodiments. The device can include a processing module 401, a sending module 402, and a receiving module 403. Optionally, the sending module 402 and the receiving module 403 correspond to the radio frequency circuit and baseband circuit included in the terminal device. A detailed description of each module is as follows.

[0096] In one embodiment,

[0097] The processing module 401 is configured to determine a first uplink transmission time ratio X on a time division duplex (TDD) frequency band; and determine a second uplink transmission time ratio Y according to the first uplink transmission time ratio X, the second uplink transmission time ratio Y being a maximum uplink transmission time ratio of the terminal device on a supplementary uplink (SUL) frequency band.

[0098] The sending module 402 is configured to send a first message to a network device, the first message being used to indicate the second uplink transmission time ratio Y, wherein the terminal device is configured to use the TDD frequency band and the SUL frequency band to transmit uplink data.

[0099] Optionally, the receiving module 403 is configured to receive a system message from the network device, the system message including an uplink-downlink time slot configuration on the TDD frequency band; and the processing module 401 is configured to determine the first uplink transmission time ratio X according to the uplink-downlink time slot configuration.

[0100] Optionally, the first message is further used to indicate that the terminal device is required to preferentially meet uplink scheduling on the TDD frequency band.

[0101] The sending module 402 is further configured to transmit the uplink data on the TDD frequency band according to the first uplink transmission time ratio X, and transmit the uplink data on the SUL frequency band according to the second uplink transmission time ratio Y.

[0102] Optionally, when 0<=X<=1, Y<=(1-X).

[0103] Optionally, when Y<0, the first message is used to indicate that the terminal device is unable to send first uplink data on the SUL frequency band, and the terminal device transmits second uplink data on the TDD frequency band according to (X+Y).

[0104] In another embodiment,

[0105] The processing module 401 is configured to determine a first uplink transmission time ratio X, the first uplink transmission time ratio X being a maximum uplink transmission time ratio of the terminal device on a time division duplex (TDD) frequency band.

[0106] The sending module 402 is configured to send a first message to a network device, the first message being used to indicate the first uplink transmission time ratio X, wherein the terminal device is configured to use the TDD frequency band and the SUL frequency band to transmit uplink data.

[0107] Optionally, the first message is further used to indicate that the terminal device is required to preferentially meet uplink scheduling on the SUL frequency band.

[0108] The sending module 402 is further configured to transmit the uplink data on the TDD frequency band according to the first uplink transmission time ratio X and on the SUL frequency band according to a second uplink transmission time ratio Y.

[0109] Optionally, when 0<=X<=1, 0<=Y<=(1-X).

[0110] Optionally, when 1X<=2, the first message is further configured to indicate that the maximum transmission power of the terminal device is 29 dBm and that the actual maximum uplink transmission time ratio on the TDD frequency band is X / 2.

[0111] It should be noted that the implementation of each module can also correspond to the description of the method embodiment. Figure 2 And Figure 3 The method embodiment shown in the description is executed by the terminal device.

[0112] As Figure 5 shown, Figure 5 is another structure diagram of a communication device provided by the embodiment of the present application. The communication device can be a network device, or a chip or processing system in the network device, and the device can be used to implement any method and function related to the network device in the foregoing embodiments. The device can include a receiving module 501, a processing module 502, and a sending module 503. Optionally, the receiving module 501 and the sending module 503 correspond to the radio frequency circuit and the baseband circuit included in the network device. The detailed description of each module is as follows.

[0113] In one embodiment,

[0114] The receiving module 501 is configured to receive a first message from a terminal device, where the first message is configured to indicate a second uplink transmission time ratio Y, and the second uplink transmission time ratio Y is a maximum uplink transmission time ratio of the terminal device on a supplementary uplink (SUL) frequency band.

[0115] The processing module 502 is configured to schedule the terminal device to transmit uplink data on a time division duplex (TDD) frequency band and the SUL frequency band according to the second uplink transmission time ratio Y.

[0116] Optionally, the sending module 503 is configured to send a system message to the terminal device, where the system message includes an uplink-downlink time slot configuration on the TDD frequency band, the uplink-downlink time slot configuration is configured to determine a first uplink transmission time ratio X on the TDD frequency band, and the first uplink transmission time ratio X is configured to determine the second uplink transmission time ratio Y.

[0117] Optionally, the processing module 502 is further configured to determine, according to the first message, that the terminal device preferentially satisfies uplink scheduling on the TDD frequency band.

[0118] Optionally, the processing module 502 is further configured to schedule the terminal device to transmit the uplink data on the TDD frequency band according to the first uplink transmission time ratio X and on the SUL frequency band according to the second uplink transmission time ratio Y.

[0119] Optionally, when 0<=X<=1, Y<=(1-X).

[0120] Optionally, when Y<0, the first message is used to instruct the terminal device to be unable to transmit first uplink data on the SUL frequency band, and the terminal device transmits second uplink data on the TDD frequency band according to (X+Y).

[0121] In another embodiment,

[0122] The receiving module 501 is configured to receive a first message from a terminal device, the first message indicating a first uplink transmission time ratio X, the first uplink transmission time ratio X being a maximum uplink transmission time ratio of the terminal device on a time division duplex (TDD) frequency band.

[0123] The processing module 502 is configured to schedule the terminal device to transmit uplink data on the TDD frequency band and a supplemental uplink (SUL) frequency band according to the first uplink transmission time ratio X.

[0124] Optionally, the processing module 502 is further configured to determine, according to the first message, that the terminal device preferentially satisfies uplink scheduling on the SUL frequency band.

[0125] Optionally, the processing module 502 is further configured to schedule the terminal device to transmit the uplink data on the TDD frequency band according to the first uplink transmission time ratio X and on the SUL frequency band according to a second uplink transmission time ratio Y.

[0126] Optionally, when 0<=X<=1, 0<=Y<=(1-X).

[0127] Optionally, when 1X<=2, the first message is further used to instruct a maximum transmission power of the terminal device to be 29 dBm and an actual maximum uplink transmission time ratio of the terminal device on the TDD frequency band to be X / 2.

[0128] It should be noted that the implementation of each module can also correspond to the implementation of the above-mentioned embodiments. Figure 2 and Figure 3The corresponding description of the method embodiments shown is performed on the method and function performed by the network device in the above-mentioned embodiments.

[0129] As shown in Figure 6 , Figure 6 is a structural schematic diagram of a terminal device. The terminal device can include at least one processor 601, at least one communication interface 602, at least one memory 603, and at least one communication bus 604.

[0130] The processor 601 can be a central processor unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules, and circuits described in combination with the disclosure. The processor can also be a combination of computing functions, such as one or more microprocessor combinations, digital signal processors and microprocessors, etc. The communication bus 604 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 6 only one bus or one type of bus is represented by a thick line, but it does not mean that there is only one bus or one type of bus. The communication bus 604 is used to realize the connection communication between the components. In the present application, the communication interface 602 of the device is used for signaling or data communication with other node devices. The memory 603 can include volatile memory, such as non-volatile random access memory (NVRAM), phase change RAM (PRAM), magnetoresistive RAM (MRAM), etc., and can also include non-volatile memory, such as at least one magnetic disk storage device, electrically erasable programmable read-only memory (EEPROM), flash memory device, such as NOR flash memory or NAND flash memory, semiconductor device, such as solid state disk (SSD), etc. The memory 603 can also be at least one storage device located away from the aforementioned processor 601. The memory 603 can also optionally store a set of program codes. The processor 601 can also optionally execute the program stored in the memory 603.

[0131] In one embodiment:

[0132] determining a first uplink transmission time ratio X on a time division duplex, TDD, frequency band;

[0133] determining a second uplink transmission time ratio Y according to the first uplink transmission time ratio X, the second uplink transmission time ratio Y being a maximum uplink transmission time ratio of the terminal device on a supplementary uplink, SUL, frequency band;

[0134] sending a first message to a network device, the first message being used for indicating the second uplink transmission time ratio Y, wherein the terminal device is configured to transmit uplink data using the TDD frequency band and the SUL frequency band.

[0135] Optionally, the processor 601 is further configured to perform the following operation steps:

[0136] receiving a system message from the network device, the system message comprising an uplink-downlink time slot configuration on the TDD frequency band;

[0137] determining the first uplink transmission time ratio X according to the uplink-downlink time slot configuration.

[0138] Optionally, the first message is further used for indicating that the terminal device preferentially satisfies uplink scheduling on the TDD frequency band.

[0139] Optionally, the processor 601 is further configured to perform the following operation steps:

[0140] transmitting the uplink data on the TDD frequency band according to the first uplink transmission time ratio X and transmitting the uplink data on the SUL frequency band according to the second uplink transmission time ratio Y.

[0141] Optionally, when 0<=X<=1, Y<=(1-X).

[0142] Optionally, when Y<0, the first message is used for indicating that the terminal device is unable to transmit first uplink data on the SUL frequency band, and the terminal device transmits second uplink data on the TDD frequency band according to (X+Y).

[0143] In another embodiment:

[0144] determining a first uplink transmission time ratio X, the first uplink transmission time ratio X being a maximum uplink transmission time ratio of the terminal device on a time division duplex, TDD, frequency band;

[0145] sending a first message to a network device, the first message being used for indicating the first uplink transmission time ratio X, wherein the terminal device is configured to transmit uplink data using the TDD frequency band and the SUL frequency band.

[0146] Optionally, the first message is further used to instruct the terminal device to preferentially meet uplink scheduling on the SUL frequency band.

[0147] Optionally, the processor 601 is further configured to perform the following operation steps:

[0148] transmit the uplink data on the TDD frequency band according to the first uplink transmission time ratio X and transmit the uplink data on the SUL frequency band according to a second uplink transmission time ratio Y.

[0149] Optionally, when 0 <= X <= 1, 0 <= Y <= (1-X).

[0150] Optionally, when 1 < X <= 2, the first message is further used to instruct the terminal device that the maximum transmission power is 29dBm and the actual maximum uplink transmission time ratio on the TDD frequency band is X / 2.

[0151] Further, the processor can also cooperate with the memory and the communication interface to perform the operations of the terminal device in the above application embodiments.

[0152] As shown in Figure 7 , Fig. 1 is a structural schematic diagram of a network device according to an application embodiment. The network device can include at least one processor 701, at least one communication interface 702, at least one memory 703 and at least one communication bus 704. Figure 7 The processor 701 can be various types of processors mentioned above. The communication bus 704 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For the sake of representation,

[0153] only one bus or one type of bus is represented by a thick line, but it does not mean that there is only one bus or one type of bus. The communication bus 704 is used to realize the connection and communication between the components. The communication interface 702 of the device in the application embodiment is used to communicate with other node devices. The memory 703 can be various types of memories mentioned above. The memory 703 can also be at least one storage device located away from the aforementioned processor 701. The memory 703 stores a set of program codes, and the processor 701 executes the program in the memory 703. Figure 7 In one embodiment:

[0154]

[0155] ​receiving a first message from a terminal device, the first message being used to indicate a second uplink transmission time ratio Y, the second uplink transmission time ratio Y being a maximum uplink transmission time ratio of the terminal device on a supplementary uplink (SUL) frequency band;

[0156] scheduling the terminal device to transmit uplink data on a time division duplex (TDD) frequency band and the SUL frequency band according to the second uplink transmission time ratio Y.

[0157] Optionally, the processor 701 is further configured to perform the following steps:

[0158] sending a system message to the terminal device, the system message comprising an uplink-downlink time slot configuration on the TDD frequency band, the uplink-downlink time slot configuration being used to determine a first uplink transmission time ratio X on the TDD frequency band, the first uplink transmission time ratio X being used to determine the second uplink transmission time ratio Y.

[0159] Optionally, the processor 701 is further configured to perform the following steps:

[0160] determining, according to the first message, that the terminal device preferentially satisfies uplink scheduling on the TDD frequency band.

[0161] Optionally, the processor 701 is further configured to perform the following steps:

[0162] scheduling the terminal device to transmit the uplink data on the TDD frequency band according to the first uplink transmission time ratio X and on the SUL frequency band according to the second uplink transmission time ratio Y.

[0163] Optionally, when 0 <= X <= 1, Y <= (1-X).

[0164] Optionally, when Y < 0, the first message is used to indicate that the terminal device is unable to send first uplink data on the SUL frequency band, and the terminal device transmits second uplink data on the TDD frequency band according to (X+Y).

[0165] In another embodiment:

[0166] receiving a first message from a terminal device, the first message indicating a first uplink transmission time ratio X, the first uplink transmission time ratio X being a maximum uplink transmission time ratio of the terminal device on a time division duplex (TDD) frequency band;

[0167] scheduling the terminal device to transmit uplink data on the TDD frequency band and a supplementary uplink (SUL) frequency band according to the first uplink transmission time ratio X.

[0168] Optionally, the processor 701 is further configured to perform the following operation steps:

[0169] According to the first message, it is determined that the terminal device preferentially satisfies uplink scheduling on the SUL frequency band.

[0170] Optionally, the processor 701 is further configured to perform the following operation steps:

[0171] The terminal device is scheduled to transmit the uplink data on the TDD frequency band according to the first uplink transmission time ratio X and on the SUL frequency band according to a second uplink transmission time ratio Y.

[0172] Optionally, when 0 <= X <= 1, 0 <= Y <= (1-X).

[0173] Optionally, when 1 < X <= 2, the first message is further used to indicate that the maximum transmit power of the terminal device is 27dBm, and the actual maximum uplink transmission time ratio on the TDD frequency band is X / 2.

[0174] Further, the processor can also cooperate with the memory and the communication interface to perform the operations of the network device in the above embodiments.

[0175] Embodiments of the present application also provide a chip system, which includes a processor for supporting a terminal device or a network device to implement the functions involved in any of the above embodiments, such as generating or processing the first uplink transmission time ratio X and the second uplink transmission time ratio Y involved in the above method. In a possible design, the chip system can also include a memory, and the memory is used for necessary program instructions and data of the terminal device or the network device. The chip system can be composed of a chip, or can include a chip and other discrete devices.

[0176] Embodiments of the present application also provide a processor for coupling with a memory, for performing any method and function related to a terminal device or a network device in any of the above embodiments.

[0177] Embodiments of the present application also provide a computer program product containing instructions, which, when executed on a computer, cause the computer to perform any method and function related to a terminal device or a network device in any of the above embodiments.

[0178] Embodiments of the present application also provide an apparatus for performing any method and function related to a terminal device or a network device in any of the above embodiments.

[0179] The embodiment of the present application further provides a wireless communication system, which comprises at least one terminal device and at least one network device involved in any of the above embodiments.

[0180] In the above embodiments, the implementation can be achieved by software, hardware, firmware or any combination thereof, entirely or partially. When implemented by software, the implementation can be in the form of computer program product, entirely or partially. The computer program product comprises one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are entirely or partially generated. The computer can be a general purpose computer, a special purpose computer, a computer network or other programmable apparatus. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be transferred from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode. The computer readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media sets. The available media can be magnetic media (such as floppy disk, hard disk, magnetic tape), optical media (such as DVD), or semiconductor media (such as solid state disk (SSD)) and the like.

[0181] The above detailed description of the specific embodiments of the present application further explains the purpose, technical solutions and beneficial effects of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A communication method characterized by comprising: The method comprises: A terminal device determines a first uplink transmission time ratio X on a time division duplex (TDD) frequency band, the first uplink transmission time ratio X representing a maximum proportion of uplink transmission time to total time domain resources supported by the terminal device on the TDD frequency band in a specific period under the premise of meeting a specific specific absorption rate (SAR) requirement; The terminal device determines a second uplink transmission time ratio Y according to the first uplink transmission time ratio X, the second uplink transmission time ratio Y representing a maximum proportion of uplink transmission time to total time domain resources supported by the terminal device on a supplementary uplink (SUL) frequency band in a specific period under the premise of meeting the SAR requirement; The terminal device sends a first message to a network device, the first message being used to indicate the second uplink transmission time ratio Y, and when Y=(1-X), it indicates that the network device can schedule any uplink resource of the terminal device, and when Y<0, the first message is used to indicate that the terminal device cannot send first uplink data on the SUL frequency band, and the terminal device sends second uplink data on the TDD frequency band in an amount not more than (X+Y), wherein the terminal device is configured to use the TDD frequency band and the SUL frequency band to transmit uplink data.

2. The method of claim 1, wherein, The method further comprises: The terminal device receives a system message from the network device, the system message comprising an uplink-downlink time slot configuration on the TDD frequency band; The terminal device determines the first uplink transmission time ratio X according to the uplink-downlink time slot configuration.

3. The method of claim 1 or 2, wherein, The first message is further used to indicate that the terminal device gives priority to meeting uplink scheduling on the TDD frequency band.

4. The method of claim 1 or 2, wherein, The method further comprises: The terminal device transmits the uplink data on the TDD frequency band in the first uplink transmission time ratio X and transmits the uplink data on the SUL frequency band in the second uplink transmission time ratio Y.

5. The method of claim 1 or 2, wherein, When 0<=X<=1, Y<=(1-X).

6. A communication method characterized by comprising: The method comprises: A network device receives a first message from a terminal device, the first message being used to indicate a second uplink transmission time ratio Y, and when Y=(1-X), it indicates that the network device can schedule any uplink resource of the terminal device, and when Y<0, the first message is used to indicate that the terminal device cannot send first uplink data on a SUL frequency band, and the terminal device sends second uplink data on a TDD frequency band in an amount not more than (X+Y), the second uplink transmission time ratio Y representing a maximum proportion of uplink transmission time to total time domain resources supported by the terminal device on a supplementary uplink (SUL) frequency band in a specific period under the premise of meeting a specific specific absorption rate (SAR) requirement, the second uplink transmission time ratio Y being determined according to a first uplink transmission time ratio X on a time division duplex (TDD) frequency band, the first uplink transmission time ratio X representing a maximum proportion of uplink transmission time to total time domain resources supported by the terminal device on the TDD frequency band in a specific period under the premise of meeting the SAR requirement; The network device schedules the terminal device to transmit uplink data on a time division duplex (TDD) frequency band and the SUL frequency band according to the second uplink transmission time ratio Y.

7. The method of claim 6, wherein, The method further includes: The network device sends a system message to the terminal device, and the system message includes an uplink-downlink time slot configuration on the TDD frequency band, which is used to determine a first uplink transmission time ratio X on the TDD frequency band, and the first uplink transmission time ratio X is used to determine the second uplink transmission time ratio Y.

8. The method of claim 6 or 7, wherein, The method further includes: The network device determines, according to the first message, that the terminal device preferentially satisfies uplink scheduling on the TDD frequency band.

9. The method of claim 6 or 7, wherein, The network device schedules the terminal device to transmit uplink data on the TDD frequency band according to the first uplink transmission time ratio X and on the SUL frequency band according to the second uplink transmission time ratio Y. When 0<=X<=1, Y<=(1-X).

10. The method according to claim 6 or 7, characterized in that The method further includes:

11. A communications device, characterized by The processing module is configured to determine a first uplink transmission time ratio X on a time division duplex (TDD) frequency band, and determine a second uplink transmission time ratio Y according to the first uplink transmission time ratio X, where the first uplink transmission time ratio X represents a maximum uplink transmission time ratio of total time domain resources supported on the TDD frequency band in a specific period under a premise of meeting a specific specific absorption rate (SAR) requirement, and the second uplink transmission time ratio Y represents a maximum uplink transmission time ratio of total time domain resources supported on a supplementary uplink (SUL) frequency band in a specific period under a premise of meeting the SAR requirement; The sending module is configured to send a first message to a network device, where the first message is used to indicate the second uplink transmission time ratio Y, and includes: when Y=(1-X), it indicates that the network device can schedule any uplink resource of the communication device; and when Y<0, the first message is used to indicate that the communication device cannot send first uplink data on the SUL frequency band, and the communication device sends second uplink data on the TDD frequency band according to not more than (X+Y), where the communication device is configured to transmit uplink data using the TDD frequency band and the SUL frequency band. The device further includes:

12. The apparatus of claim 11, wherein, The receiving module is configured to receive a system message from the network device, where the system message includes an uplink-downlink time slot configuration on the TDD frequency band. The processing module is further configured to determine the first uplink transmission time ratio X according to the uplink-downlink time slot configuration. The first message is further used to indicate that the communication device preferentially satisfies uplink scheduling on the TDD frequency band.

13. The apparatus of claim 11 or 12, wherein, 14. The apparatus of claim 11 or 12, wherein ​ The sending module is further configured to transmit the uplink data on the TDD frequency band according to the first uplink transmission time ratio X and on the SUL frequency band according to the second uplink transmission time ratio Y.

15. The apparatus of claim 11 or 12, wherein, When 0<=X<=1, Y<=(1-X).

16. A communications device, characterized by The method comprises: The receiving module is configured to receive a first message from a terminal device, the first message being used to indicate a second uplink transmission time ratio Y, and the first message is used to indicate that the terminal device cannot transmit first uplink data on a SUL frequency band and the terminal device transmits second uplink data on a TDD frequency band according to a ratio not more than (X+Y) when Y<0, the second uplink transmission time ratio Y is a maximum uplink transmission time ratio of total time domain resources supported by the terminal device on a SUL frequency band in a specific period under a premise of meeting a SAR requirement, the second uplink transmission time ratio Y is determined according to a first uplink transmission time ratio X on a TDD frequency band, and the first uplink transmission time ratio X represents a maximum uplink transmission time ratio of total time domain resources supported by the terminal device on the TDD frequency band in the specific period under the premise of meeting the SAR requirement; The processing module is configured to schedule the terminal device to transmit uplink data on the TDD frequency band and on the SUL frequency band according to the second uplink transmission time ratio Y.

17. The apparatus of claim 16, wherein The sending module is configured to send a system message to the terminal device, the system message comprising an uplink-downlink time slot configuration on the TDD frequency band, the uplink-downlink time slot configuration being used to determine the first uplink transmission time ratio X, and the first uplink transmission time ratio X being used to determine the second uplink transmission time ratio Y.

18. The apparatus of claim 16 or 17, wherein The processing module is further configured to determine, according to the first message, that the terminal device gives priority to meeting uplink scheduling on the TDD frequency band.

19. The apparatus of claim 16 or 17, wherein The processing module is further configured to schedule the terminal device to transmit the uplink data on the TDD frequency band according to the first uplink transmission time ratio X and on the SUL frequency band according to the second uplink transmission time ratio Y.

20. The apparatus of claim 16 or 17, wherein, When 0<=X<=1, Y<=(1-X).

21. A computer-readable storage medium, characterized in that, A computer readable storage medium storing instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1 to 10.

22. A chip, characterized by A chip comprising a processor and a memory, the memory being configured to store instructions, and the processor being configured to execute the instructions to cause the chip to perform the method of any one of claims 1 to 10.

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