CN113396623B

CN113396623B - Communication method and communication device

Info

Publication number: CN113396623B
Application number: CN201980091422.5A
Authority: CN
Inventors: 邢金强
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2023-04-25
Anticipated expiration: 2039-08-14
Also published as: WO2021026845A1; CN113396623A

Abstract

The application provides a communication method, which comprises the following steps: determining a first transmission time, wherein the first transmission time is the transmission time for transmitting on the auxiliary carrier in a target period; and determining a second transmission time according to the first transmission time, wherein the second transmission time is the transmission time for transmitting on the main carrier in the target period, and the SAR sum of the main carrier and the auxiliary carrier in the target period is smaller than or equal to the SAR threshold. If the first transmission time is longer, the transmission time of the main carrier in the target period needs to be reduced so as to ensure that the total SAR value of the wireless device in the target period does not exceed the standard; if the first transmission time is shorter, the transmission time of the primary carrier in the target period can be increased, provided that the total SAR value of the wireless device in the target period is ensured not to exceed the standard. Therefore, the scheme can ensure that the SAR value of the wireless device which uses a plurality of carriers for communication is not out of standard, and can flexibly adjust the transmission time of the main carrier.

Description

Communication method and communication device

Technical Field

The present application relates to the field of communications, and in particular, to a communication method and a communication device.

Background

In some scenarios, a terminal device is capable of communicating using multiple carriers. For example, in a dual connectivity (dual connectivity, DC) scenario, a terminal device may access a long term evolution (long term evolution, LTE) network and a New Radio (NR) network simultaneously, communicate with the LTE network device using an LTE carrier, and communicate with the NR network device using an NR carrier.

The electromagnetic wave absorption ratio (specific absorption ratio, SAR) is a parameter that measures the effect of electromagnetic waves emitted by a wireless device on the human body. In order to avoid the harm of electromagnetic waves to human bodies, the communication protocol has strict requirements on the SAR value of electromagnetic waves of the wireless device, and the SAR value of electromagnetic waves emitted by the wireless device must not exceed a specified value.

Since the frequency bands of the NR carrier and the LTE carrier are different, the radiation effect of the carriers in different frequency bands on the human body is different. Therefore, the SAR values of the LTE carrier and the NR carrier for the same transmit power are different. How to ensure that SAR values of wireless devices communicating using multiple carriers do not exceed the standard is a problem that currently needs to be addressed.

Disclosure of Invention

Provided are a communication method and a communication device capable of ensuring that SAR values of wireless devices that communicate using a plurality of carriers do not exceed a standard.

In a first aspect, a communication method is provided, including: determining a first transmission time, wherein the first transmission time is the transmission time for transmitting on an auxiliary carrier in a target period; and determining a second transmitting time according to the first transmitting time, wherein the second transmitting time is the transmitting time for transmitting on a main carrier in the target period, and the sum of SAR of the main carrier and the auxiliary carrier in the target period is smaller than or equal to a SAR threshold.

The transmitting time of the carrier wave is positively correlated with the SAR value of the carrier wave, if the first transmitting time is longer, the transmitting time of the main carrier wave in the target period needs to be reduced so as to ensure that the total SAR value of the wireless equipment in the target period is not out of standard; if the first transmission time is shorter, the transmission time of the primary carrier in the target period can be increased, provided that the total SAR value of the wireless device in the target period is ensured not to exceed the standard. Therefore, the scheme can ensure that the SAR value of the wireless device which uses a plurality of carriers for communication is not out of standard, and can flexibly adjust the transmission time of the main carrier.

In a second aspect, a communication method is provided, including: the network equipment receives capability information from the terminal equipment, wherein the capability information is used for indicating second transmitting time of transmitting signals in a target period by using a main carrier; the network device sends time information to the terminal device, wherein the time information is used for indicating a third transmitting time of the terminal device for transmitting signals in the target period by using the main carrier.

The capability information of the terminal equipment is the transmitting time of transmitting signals by using the main carrier in the target period determined by the terminal equipment, and the transmitting time of the main carrier is adjusted according to the capability information, so that the exceeding of the SAR value of the terminal equipment in a DC scene or a CA scene can be avoided, for example, the exceeding of the SAR value of the terminal equipment when the uplink and downlink configuration of the auxiliary carrier is static configuration can be avoided.

In a third aspect, a communication device is provided for performing the method of the first aspect described above. In particular, the apparatus comprises a functional module for performing the method in the first aspect.

In a fourth aspect, there is provided a communication device for performing the method of the first and/or second aspects above. In particular, the apparatus comprises functional modules for performing the method in the first and/or second aspect.

In a fifth aspect, a terminal device is provided comprising a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the method in the first aspect.

In a sixth aspect, a network device is provided that includes a processor and a memory. The memory is for storing a computer program and the processor is for calling and running the computer program stored in the memory for performing the method of the first and/or second aspect described above.

In a seventh aspect, a chip is provided for performing the method in the first aspect. Specifically, the chip includes: a processor for calling and running a computer program from the memory, such that the device on which the chip is mounted is for performing the method in the first aspect described above.

In an eighth aspect, a chip is provided for performing the method of the first and/or second aspects above. Specifically, the chip includes: a processor for calling and running a computer program from a memory, such that a device on which the chip is mounted is for performing the method of the first and/or second aspect described above.

In a ninth aspect, a computer-readable storage medium is provided for storing a computer program that causes a computer to execute the method in the first aspect described above.

In a tenth aspect, a computer readable storage medium is provided for storing a computer program for causing a computer to perform the method of the first and/or second aspects described above.

In an eleventh aspect, there is provided a computer program product comprising computer program instructions for causing a computer to perform the method of the first aspect described above.

In a twelfth aspect, there is provided a computer program product comprising computer program instructions for causing a computer to perform the method of the first and/or second aspects described above.

In a thirteenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of the first aspect described above.

In a fourteenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of the first and/or second aspects described above.

Drawings

FIG. 1 is a schematic diagram of a communication system suitable for use in the present application;

FIG. 2 is a schematic diagram of one communication method provided herein;

FIG. 3 is a schematic diagram of another communication method provided herein;

FIG. 4 is a schematic diagram of a communication device provided herein;

FIG. 5 is a schematic diagram of a communication device provided herein;

fig. 6 is a schematic diagram of a communication device provided herein.

Detailed Description

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.

Fig. 1 is a schematic diagram of a communication system suitable for use in the present application.

Communication system 100 includes network device 110, network device 120, and terminal device 130. Terminal device 130 may be in communication with network device 110 and/or network device 120. The dashed lines in fig. 1 represent the coverage of the network devices and the double-headed arrows represent the ability to communicate between the two devices. For example, terminal device 130 may communicate with network device 110 and/or network device 120 via electromagnetic waves, and network device 110 and network device 120 may also communicate via electromagnetic waves.

In the present application, the terminal device 130 may include various handheld devices, in-vehicle devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, such as a User Equipment (UE), mobile Station (MS), soft terminal, home gateway, set top box, etc., defined by the third generation partnership project (3rd generation partnership project,3GPP).

Network device 110 and/or network device 120 may be access network devices conforming to 3GPP specifications, such as a base station (gNB) in a 5G mobile communication system. Network device 110 and/or network device 120 may also be non-3GPP (non-3 GPP) network devices, such as an Access Gateway (AGF). Network device 110 and/or network device 120 may also be relay stations, access points, in-vehicle devices, wearable devices, and other types of devices.

The communication system 100 is merely illustrative, and a communication system to which the present application is applied is not limited thereto.

Terminal device 130 may communicate with network device 110 or network device 120 via carrier aggregation (carrier aggregation, CA). In the CA scenario, the terminal device 130 may use multiple carriers to communicate at the same time, thereby improving the data transmission rate. The plurality of carriers includes 1 primary carrier and 1 or more secondary carriers.

Terminal device 130 may also communicate with network device 110 and network device 120 via the DC. In a DC scenario, a plurality of Cell Groups (CG) may serve a terminal device, where the plurality of CG may include a Master CG (MCG) and a Secondary CG (SCG), where the master CG may also be referred to as a master base station and the secondary CG may also be referred to as a secondary base station. In this application, the primary cell, primary base station, and primary network device are equivalent; similarly, the secondary cell, secondary base station, and secondary network device are equivalent; the above concepts are not distinguished below.

For example, in communication system 100, the primary base station may be network device 110 and the secondary base station may be network device 120. Wherein network device 110 may be an LTE base station and network device 120 may be an NR base station; alternatively, network device 110 may be an NR base station and network device 120 may be an LTE base station; alternatively, network device 110 and network device 120 are both LTE base stations; alternatively, network device 110 and network device 120 are both NR base stations. The present application does not limit the type of network devices in a DC scenario.

When the primary base station is an LTE base station and the secondary base station is an NR base station, the terminal device 130 in the DC scenario may be referred to as an evolved universal mobile telecommunications system terrestrial radio access network new wireless-dual connectivity (evolved universal mobile telecommunications system terrestrial radio access network new radio-DC, EN-DC) terminal; when the primary base station is an NR base station and the secondary base station is an LTE base station, the terminal device 130 in the DC scenario may be referred to as a new wireless evolved universal mobile telecommunications system terrestrial radio access network-dual connectivity (new radio evolved universal mobile telecommunications system terrestrial radio access network-DC, NE-DC) terminal.

In addition, the terminal device 130 may or may not use CA when communicating with the master base station; the terminal device 130 may or may not use CA when communicating with the secondary base station.

Next, the communication method provided by the present application will be described in detail.

As shown in fig. 2, the method 200 includes:

s210, determining a first transmission time, where the first transmission time is a transmission time for transmitting on the secondary carrier in the target period.

The method 200 may be performed by a terminal device or a chip in a terminal device, or may be performed by a network device or a chip of a network device.

If the method 200 is performed by a terminal device, the target period may be configured by a network device, may be determined by the terminal device, or may be defined by a communication protocol.

If the method 200 is performed by a network device, the target period may be determined by the network device or may be specified by a communication protocol.

Next, the method 200 will be described by taking an EN-DC terminal as an example of the execution apparatus of the method 200.

The main base station of the EN-DC terminal is an LTE base station, and the auxiliary base station of the EN-DC terminal is an NR base station; accordingly, the carrier of the LTE base station may be referred to as a primary carrier, and the carrier of the NR base station may be referred to as a secondary carrier. The LTE base station is, for example, an LTE frequency division duplex (frequency division duplexing, FDD) base station, and the NR base station is, for example, an NR time division duplex (time division duplexing, TDD) base station.

After the EN-DC terminal obtains the uplink and downlink configuration of the NR TDD network, the first transmission time in the target period may be determined.

The first emission time can be interpreted as: a first length of transmission time.

For example, the target period is 1 slot (slot), which includes 14 symbols, where 10 symbols are configured as uplink symbols and 4 symbols are configured as downlink symbols, and the first transmission time in the target period is a duration of 10 symbols.

The first emission time can also be interpreted as: a first emission time duty cycle; that is, the length of the transmission time for transmitting on the secondary carrier is a proportion of the length of the target period.

For example, the target period is 1 slot (slot) including 14 symbols, wherein 10 symbols are configured as uplink symbols and 4 symbols are configured as downlink symbols, and the first transmission time within the target period is ten (or five sevenths) slots of fourteen.

The above explanation about the first transmission time also applies to the second transmission time and the third transmission time described below.

The EN-DC terminal may obtain the uplink and downlink configuration of the NR TDD network through the following 3 schemes.

Scheme 1: the EN-DC terminal initially accesses the LTE FDD base station, which may configure the NR TDD base station for the EN-DC terminal through a radio resource control (radio resource control, RRC) connection reconfiguration message. The EN-DC terminal can obtain uplink and downlink configuration of the NR TDD network by reading the broadcast message of the NR TDD base station.

Scheme 2: the EN-DC terminal is initially accessed to an LTE FDD base station, the LTE FDD base station informs the EN-DC terminal to monitor the broadcasting message of the NR TDD base station, and the uplink and downlink configuration of the NR TDD network is obtained from the broadcasting message; subsequently, the LTE FDD base station configures an NR TDD base station for the EN-DC terminal through an RRC connection reconfiguration message.

After the EN-DC terminal determines uplink and downlink configuration of the NR TDD network, capability information needs to be reported to the LTE FDD base station so as to indicate the transmitting time of the EN-DC terminal for transmitting signals to the LTE FDD base station in a target period; when sending the capability information to the LTE FDD base station, the EN-DC terminal needs to disconnect the connection with the NR TDD base station and reconnect with the NR TDD base station after reporting the capability information. Therefore, in scheme 2, the number of connections of the EN-DC terminal with the NR TDD base station is reduced compared to scheme 1, thereby reducing signaling overhead.

Scheme 3: the EN-DC terminal is initially accessed to the LTE FDD base station, and the LTE FDD base station informs the EN-DC terminal of uplink and downlink configuration of the NR TDD network through RRC message.

After the EN-DC terminal obtains the uplink and downlink configuration of the NR TDD network, the following steps may be performed to determine the transmission time for transmitting on the primary carrier in the target period.

S220, determining a second transmitting time according to the first transmitting time, wherein the second transmitting time is the transmitting time for transmitting on a main carrier in the target period, and the sum of SAR of the main carrier and the auxiliary carrier in the target period is smaller than or equal to a SAR threshold.

For example, the total SAR value of the EN-DC terminal must not exceed SAR1 (i.e., SAR threshold) within the target period, the SAR value of the secondary carrier within the target period can be determined to be SAR2 based on the first transmit time and the first transmit power of the secondary carrier, SAR2 is positively correlated with the first transmit time, and SAR2 is positively correlated with the first transmit power of the secondary carrier; the SAR value that the primary carrier can generate in the target period needs to be less than or equal to SAR1-SAR2, SAR1-SAR2 being the SAR threshold, and the second transmission time can be determined according to the SAR threshold and the transmission power of the primary carrier, wherein the second transmission time is inversely related to the transmission power of the primary carrier.

Optionally, the first transmission power is the maximum transmission power of the EN-DC terminal transmitting on the secondary carrier, so that the obtained second transmission time is the shortest transmission time of the EN-DC terminal capable of transmitting by using the primary carrier, and the shortest transmission time and the primary carrier power corresponding to the shortest transmission time are the capability information of the EN-DC terminal.

After the EN-DC terminal determines the capability information, the capability information may be actively sent to the primary cell to which the primary carrier belongs, so that the primary base station configures uplink transmission time of the primary carrier for the EN-DC terminal according to the capability information. The EN-DC terminal may also send the capability information after receiving the indication information indicating reporting the capability information by the master base station. The capability information may be carried in a tracking area update (tracking area update, TAU) message.

After the master base station obtains the capability information, the transmission time (i.e., the third transmission time) of the master carrier in the target period can be configured for the EN-DC terminal through a time division multiplexing (time division multiplexing, TDM) template (pattern); alternatively, the transmission time (i.e., third transmission time) of the EN-DC terminal transmitting using the primary carrier within the target period may also be indicated by an RRC message or downlink control information (downlink control information, DCI).

After the EN-DC terminal receives the information sent by the main base station, if the transmission time configured or indicated by the information is greater than the second transmission time, the EN-DC terminal can ensure that the total SAR value in the target period does not exceed the SAR threshold through power backoff. Wherein the EN-DC terminal may perform only power backoff of the primary carrier, e.g., reduce the transmit power of the primary carrier; the EN-DC terminal may perform only total power backoff of the primary carrier and the secondary carrier, e.g., reduce the transmit power of the primary carrier and the transmit power of the secondary carrier.

It should be noted that, the "positive correlation" described above refers to: when a increases, B also increases; the "negative correlation" mentioned above refers to: as a increases, B decreases.

For example, SAR2 is positively correlated with the first transmit time, and can be interpreted as: as the first emission time increases, SAR2 increases; the second transmission time inversely related to the transmission power of the primary carrier may be interpreted as: the second transmission time decreases when the transmission power of the primary carrier increases.

According to the scheme, the transmitting time of the main carrier is determined according to the transmitting time of the auxiliary carrier, so that the sum of SAR generated by the auxiliary carrier and the main carrier is smaller than a specified SAR value, and the SAR value of wireless equipment (such as terminal equipment or network equipment) using a plurality of carriers for communication can be ensured not to exceed the standard.

In some cases, the uplink and downlink configuration of the secondary carrier is a static configuration. For example, the NR TDD network supports uplink and downlink configuration in which part of symbols are dynamically changed, but in actual network deployment, in order to avoid uplink and downlink cross interference between different terminal devices and uplink and downlink cross interference between different network devices, the uplink and downlink configuration of the NR TDD network is generally a static configuration. For the case of the secondary carrier static configuration, it is difficult to adjust the transmission time of the secondary carrier based on the transmission time of the primary carrier, and compared to the scheme of adjusting the transmission time of the secondary carrier according to the transmission time of the primary carrier, the method 200 can ensure that the SAR value of the signal does not exceed the standard in the case of the secondary carrier static configuration.

In the above example, the secondary base station is an NR TDD base station, and the primary base station is an LTE FDD base station. The application scenario of the method 200 is not limited thereto, but the method 200 may also be applied to the following scenarios:

the auxiliary base station is an NR FDD base station, and the main base station is an LTE FDD base station;

the auxiliary base station is an NR TDD base station, and the main base station is an LTE TDD base station;

the auxiliary base station is an NR FDD base station, and the main base station is an LTE TDD base station;

the auxiliary base station is an LTE TDD base station, and the main base station is an NR FDD base station;

the auxiliary base station is an LTE TDD base station, and the main base station is an NR TDD base station;

the auxiliary base station is an LTE FDD base station, and the main base station is an NR FDD base station;

the auxiliary base station is an LTE FDD base station, and the main base station is an NR TDD base station;

CA scenario for wireless devices.

In the above scenario, if the primary base station is an LTE TDD base station, the primary base station may adjust the transmission time of the primary carrier by configuring uplink and downlink configuration conditions of the uplink and downlink variable subframes; if the primary base station is an NR TDD base station, the primary base station can adjust the transmitting time of the primary carrier by configuring uplink and downlink configuration conditions of uplink and downlink variable symbols.

The wireless device may be a terminal device or a network device, for example, an NR FDD base station, an NR TDD base station, an LTE FDD base station, or an LTE TDD base station.

The communication method provided by the present application is described in detail above, and another communication method provided by the present application is described below. As shown in fig. 3, the method 300 includes:

s310, the network device receives capability information from the terminal device, where the capability information is used to instruct the terminal device to transmit a second transmission time of the signal in the target period using the primary carrier.

S320, the network device sends time information to the terminal device, where the time information is used to indicate a third transmission time when the terminal device uses the primary carrier to transmit a signal in the target period.

The method 300 may be performed by a network device or a chip in a network device. The network device may be a primary cell or a secondary cell. When the network device is a primary cell, the network device may directly receive capability information from the terminal device and directly send time information to the terminal device; when the network device is a secondary cell, the network device may receive capability information from the terminal device and forward to the primary cell, and the network device may receive time information from the primary cell and forward to the terminal device.

The second emission time and the third emission time may be equal or unequal. The specific manner in which the network device receives the capability information and transmits the time information may refer to the related description in the method 200, and for brevity, the description is omitted again.

Optionally, the method 300 further comprises:

and the network equipment sends uplink and downlink configuration information of the auxiliary cell to the terminal equipment, wherein the uplink and downlink configuration information is used for the terminal equipment to determine the second transmitting time.

Optionally, the uplink and downlink configuration information is carried in an RRC message.

Optionally, the method 300 further comprises:

the network equipment sends indication information to the terminal equipment, wherein the indication information is used for indicating the terminal equipment to report the capability information.

The specific processes and advantages of the above optional embodiments may refer to the relevant descriptions in the method 200, and are not described herein.

Examples of the communication method provided in the present application are described above in detail. It will be appreciated that the communication device, in order to achieve the above-described functions, comprises corresponding hardware structures and/or software modules performing the respective functions. Those of skill in the art will readily appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The present application may divide the functional units of the communication device according to the above method example, for example, each function may be divided into each functional unit, or two or more functions may be integrated into one processing unit. The integrated units may be implemented in hardware or in software functional units. It should be noted that the division of the units in the present application is illustrative, and is merely a logic function division, and other division manners may be implemented in practice.

Fig. 4 is a schematic structural diagram of a communication device provided in the present application. The apparatus 400 includes a processing unit 410, and optionally, a transmitting unit 420 and a receiving unit 430, where the transmitting unit 420 is capable of performing a transmitting step under the control of the processing unit 410, and the receiving unit 430 is capable of performing a receiving step (or an acquiring step) under the control of the processing unit 410. The processing unit 410 may be configured to perform:

determining a first transmission time, wherein the first transmission time is the transmission time for transmitting on an auxiliary carrier in a target period;

and determining a second transmitting time according to the first transmitting time, wherein the second transmitting time is the transmitting time for transmitting on a main carrier in the target period, and the sum of SAR of the main carrier and the auxiliary carrier in the target period is smaller than or equal to a SAR threshold.

Optionally, the processing unit 410 is specifically configured to: determining a first SAR of the auxiliary carrier in the target period according to the first transmission time and the first transmission power of the auxiliary carrier; determining a second SAR according to the SAR threshold value and the first SAR, wherein the second SAR is smaller than or equal to the difference value between the SAR threshold value and the first SAR; the second transmitting time is determined according to the first SAR and the second SAR, the second transmitting time is positively correlated with the difference value of the first SAR and the second SAR, and the second transmitting time is negatively correlated with the transmitting power of the main carrier.

Optionally, the first transmission power is a maximum transmission power.

Optionally, the processing unit 410 is specifically configured to: acquiring uplink and downlink configuration information of an auxiliary cell to which the auxiliary carrier belongs; and determining the first transmitting time according to the uplink and downlink configuration information.

Optionally, the uplink and downlink configuration information is carried in a broadcast message of the secondary cell.

Optionally, the processing unit 410 is further configured to: and accessing the auxiliary cell.

Optionally, the uplink and downlink configuration information is carried in an RRC message of a primary cell to which the primary carrier belongs.

Alternatively, the transmitting unit 420 is configured to: and sending capability information to a main cell to which the main carrier belongs, wherein the capability information is used for indicating the second transmitting time.

Optionally, the capability information is carried in a TAU message.

Alternatively, the sending unit 420 is specifically configured to: and after re-accessing the main cell, transmitting the capability information to the main cell.

Optionally, the receiving unit 430 is configured to: and acquiring indication information from the network equipment, wherein the indication information indicates reporting of the capability information.

Optionally, the processing unit 410 is specifically configured to: receiving time information from a network device, the time information being indicative of a third transmission time for transmission on the primary carrier within the target period; and when the third transmission time is greater than the second transmission time, performing power back-off of the main carrier or performing total power back-off of the main carrier.

Fig. 5 is a schematic structural diagram of another communication device provided in the present application. The apparatus 500 includes a processing unit 510, a transmitting unit 520, and a receiving unit 530, the transmitting unit 520 being capable of performing a transmitting step under the control of the processing unit 510, and the receiving unit 530 being capable of performing a receiving step (or acquiring step) under the control of the processing unit 510.

The receiving unit 530 is configured to: receiving capability information from a terminal device, wherein the capability information is used for indicating a second transmitting time of the terminal device for transmitting signals in a target period by using a main carrier;

the transmitting unit 520 is configured to: and sending time information to the terminal equipment, wherein the time information is used for indicating a third transmitting time of the terminal equipment for transmitting signals in the target period by using the main carrier.

Optionally, the sending unit 520 is further configured to: and sending uplink and downlink configuration information of the auxiliary cell to the terminal equipment, wherein the uplink and downlink configuration information is used for determining the second transmitting time by the terminal equipment.

Optionally, the sending unit is further configured to: and sending indication information to the terminal equipment, wherein the indication information is used for indicating the terminal equipment to report the capability information.

Fig. 6 shows a schematic structural diagram of a communication device provided in the present application. The dashed line in fig. 6 indicates that the unit or the module is optional. The apparatus 600 may be used to implement the methods described in the method embodiments above. Device 600 may be a terminal device or a network device or chip.

The device 600 includes one or more processors 601, which one or more processors 601 may support the device 600 to implement the methods of the corresponding method embodiments of fig. 2-5. The processor 601 may be a general purpose processor or a special purpose processor. For example, the processor 601 may be a central processing unit (central processing unit, CPU). The CPU may be used to control the device 600, execute software programs, and process data for the software programs. The device 600 may also include a communication unit 605 to enable input (reception) and output (transmission) of signals.

For example, the device 600 may be a chip, the communication unit 605 may be an input and/or output circuit of the chip, or the communication unit 605 may be a communication interface of the chip, which may be an integral part of a terminal device or a network device or other wireless communication device.

For another example, the device 600 may be a terminal device or a network device, the communication unit 605 may be a transceiver of the terminal device or the network device, or the communication unit 605 may be a transceiver circuit of the terminal device or the network device.

The device 600 may include one or more memories 602 having a program 604 stored thereon, the program 604 being executable by the processor 601 to generate instructions 603 such that the processor 601 performs the methods described in the method embodiments above according to the instructions 603. Optionally, the memory 602 may also have data stored therein. Alternatively, the processor 601 may also read data stored in the memory 602, which may be stored at the same memory address as the program 604, or which may be stored at a different memory address than the program 604.

The processor 601 and the memory 602 may be provided separately or may be integrated together, for example, on a board of a network device or a System On Chip (SOC) of a terminal device.

The device 600 may also include an antenna 606. The communication unit 605 is used to implement the transceiving function of the device 600 through the antenna 606.

The specific manner in which the processor 601 performs the communication method may be found in the relevant description of the method embodiments.

It should be understood that the steps of the above-described method embodiments may be accomplished by logic circuitry in the form of hardware or instructions in the form of software in the processor 601. The processor 601 may be a CPU, digital signal processor (digital signal processor, DSP), application specific integrated circuit (application specific integrated circuit, ASIC), field programmable gate array (field programmable gate array, FPGA) or other programmable logic device such as discrete gates, transistor logic, or discrete hardware components.

The present application also provides a computer program product which, when executed by the processor 601, implements the method described in any of the method embodiments of the present application.

The computer program product may be stored in the memory 602, for example, the program 604, and the program 604 is finally converted into an executable object file capable of being executed by the processor 601 through preprocessing, compiling, assembling, and linking.

The present application also provides a computer readable storage medium having stored thereon a computer program which, when executed by a computer, implements a method according to any of the method embodiments of the present application. The computer program may be a high-level language program or an executable object program.

The computer-readable storage medium is, for example, memory 602. The memory 602 may be volatile memory or nonvolatile memory, or the memory 602 may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and direct memory bus RAM (DR RAM).

It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working processes and technical effects of the apparatus and device described above may refer to corresponding processes and technical effects in the foregoing method embodiments, which are not described in detail herein.

In several embodiments provided in the present application, the disclosed systems, apparatuses, and methods may be implemented in other manners. For example, some features of the method embodiments described above may be omitted, or not performed. The above-described apparatus embodiments are merely illustrative, the division of units is merely a logical function division, and there may be additional divisions in actual implementation, and multiple units or components may be combined or integrated into another system. In addition, the coupling between the elements or the coupling between the elements may be direct or indirect, including electrical, mechanical, or other forms of connection.

It should be understood that, in various embodiments of the present application, the size of the sequence number of each process does not mean that the execution sequence of each process should be determined by its functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

In addition, the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely one association relationship describing the associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In summary, the foregoing description is only a preferred embodiment of the technical solution of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A method of communication, comprising:

determining a second transmitting time according to the first transmitting time, wherein the second transmitting time is transmitting time for transmitting on a main carrier in the target period, and the sum of the electromagnetic wave absorption ratio SAR of the main carrier and the auxiliary carrier in the target period is smaller than or equal to a SAR threshold value;

the terminal equipment receives time information from the network equipment, wherein the time information is used for indicating third transmission time for transmitting on the main carrier in the target period;

and when the third transmission time is greater than the second transmission time, executing the power back-off of the main carrier or executing the total power back-off of the main carrier and the auxiliary carrier.

2. The method of claim 1, wherein said determining a second transmission time from said first transmission time comprises:

determining a first SAR of the auxiliary carrier in the target period according to the first transmission time and the first transmission power of the auxiliary carrier;

determining a second SAR according to the SAR threshold value and the first SAR, wherein the second SAR is smaller than or equal to the difference value between the SAR threshold value and the first SAR;

the second transmitting time is determined according to the first SAR and the second SAR, the second transmitting time is positively correlated with the difference value of the first SAR and the second SAR, and the second transmitting time is negatively correlated with the transmitting power of the main carrier.

3. The method of claim 2, wherein the first transmit power is a maximum transmit power.

4. The method of claim 1, wherein the determining the first transmission time comprises:

the terminal equipment acquires uplink and downlink configuration information of an auxiliary cell to which the auxiliary carrier belongs;

and the terminal equipment determines the first transmitting time according to the uplink and downlink configuration information.

5. The method of claim 4, wherein the uplink and downlink configuration information is carried in a broadcast message of the secondary cell.

6. The method of claim 4, wherein before the terminal device obtains uplink and downlink configuration information of the secondary cell to which the secondary carrier belongs, the method further comprises:

and the terminal equipment is accessed into the auxiliary cell.

7. The method of claim 4, wherein the uplink and downlink configuration information is carried in a radio resource control, RRC, message of a primary cell to which the primary carrier belongs.

8. The method according to any one of claims 1 to 7, further comprising:

and the terminal equipment sends capability information to a main cell to which the main carrier belongs, wherein the capability information is used for indicating the second transmitting time.

9. The method of claim 8 wherein the capability information is carried in a tracking area update TAU message.

10. The method according to claim 8 or 9, wherein the terminal device sends capability information to a primary cell to which the primary carrier belongs, comprising:

and after re-accessing the main cell, the terminal equipment sends the capability information to the main cell.

11. The method as recited in claim 8, further comprising:

the terminal equipment acquires indication information from the network equipment, wherein the indication information indicates the terminal equipment to report the capability information.

12. A method of communication, comprising:

the network equipment receives capability information from the terminal equipment, wherein the capability information is used for indicating second transmitting time of transmitting signals in a target period by using a main carrier;

the network device sends time information to the terminal device, wherein the time information is used for indicating a third transmitting time of the terminal device for transmitting signals in the target period by using the main carrier; and when the third transmitting time is greater than the second transmitting time, the terminal equipment executes the power back-off of the main carrier or executes the total power back-off of the main carrier and the auxiliary carrier.

13. The method as recited in claim 12, further comprising:

14. The method of claim 13, wherein the uplink and downlink configuration information is carried in a radio resource control, RRC, message.

15. The method according to any one of claims 12 to 14, further comprising:

16. A communication device, comprising a processing unit configured to:

wherein the processing unit is further configured to:

receiving time information from a network device, the time information being indicative of a third transmission time for transmission on the primary carrier within the target period;

17. The apparatus according to claim 16, wherein the processing unit is specifically configured to:

18. The apparatus of claim 17, wherein the first transmit power is a maximum transmit power.

19. The apparatus according to claim 16, wherein the processing unit is specifically configured to:

acquiring uplink and downlink configuration information of an auxiliary cell to which the auxiliary carrier belongs;

and determining the first transmitting time according to the uplink and downlink configuration information.

20. The apparatus of claim 19, wherein the uplink and downlink configuration information is carried in a broadcast message of the secondary cell.

21. The apparatus of claim 19, wherein the processing unit is further configured to:

and accessing the auxiliary cell.

22. The apparatus of claim 19, wherein the uplink and downlink configuration information is carried in a radio resource control, RRC, message of a primary cell to which the primary carrier belongs.

23. The apparatus according to any one of claims 16 to 22, further comprising a transmitting unit configured to:

and sending capability information to a main cell to which the main carrier belongs, wherein the capability information is used for indicating the second transmitting time.

24. The apparatus of claim 23, wherein the capability information is carried in a tracking area update TAU message.

25. The apparatus according to claim 23, wherein the transmitting unit is specifically configured to:

and after re-accessing the main cell, transmitting the capability information to the main cell.

26. The apparatus of claim 23, further comprising a receiving unit configured to:

and acquiring indication information from the network equipment, wherein the indication information indicates reporting of the capability information.

27. A communication device is characterized by comprising a processing unit, a receiving unit and a transmitting unit,

the processing unit is configured to control the receiving unit to perform: receiving capability information from a terminal device, wherein the capability information is used for indicating a second transmitting time of the terminal device for transmitting signals in a target period by using a main carrier;

the processing unit is configured to control the sending unit to perform: transmitting time information to the terminal equipment, wherein the time information is used for indicating a third transmitting time of the terminal equipment for transmitting signals in the target period by using the main carrier; and when the third transmitting time is greater than the second transmitting time, the terminal equipment executes the power back-off of the main carrier or executes the total power back-off of the main carrier and the auxiliary carrier.

28. The apparatus of claim 27, wherein the transmitting unit is further configured to:

and sending uplink and downlink configuration information of the auxiliary cell to the terminal equipment, wherein the uplink and downlink configuration information is used for determining the second transmitting time by the terminal equipment.

29. The apparatus of claim 28, wherein the uplink and downlink configuration information is carried in a radio resource control, RRC, message.

30. The apparatus according to any one of claims 27 to 29, wherein the transmitting unit is further configured to:

and sending indication information to the terminal equipment, wherein the indication information is used for indicating the terminal equipment to report the capability information.

31. A terminal device, comprising: a processor and a memory for storing a computer program, the processor being adapted to invoke and run the computer program stored in the memory for performing the method according to any of claims 1 to 11.

32. A network device, comprising: a processor and a memory for storing a computer program, the processor being adapted to invoke and run the computer program stored in the memory, to perform the method according to any of claims 1 to 3 and/or to perform the method according to any of claims 12 to 15.

33. A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to execute: the method of any one of claims 1 to 11.

34. A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to execute: a method according to any one of claims 1 to 3, and/or a method according to any one of claims 12 to 15.

35. A computer-readable storage medium storing a computer program that causes a computer to execute: the method of any one of claims 1 to 11.

36. A computer-readable storage medium storing a computer program that causes a computer to execute: a method according to any one of claims 1 to 3, and/or a method according to any one of claims 12 to 15.