CN113396623A

CN113396623A - Communication method and communication device

Info

Publication number: CN113396623A
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: 2021-09-14
Anticipated expiration: 2039-08-14
Also published as: WO2021026845A1; CN113396623B

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 within a target time 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 a target time period, and the sum of the SAR of the main carrier and the auxiliary carrier in the target time period is less than or equal to an SAR threshold value. If the first transmission time is longer, the transmission time of the main carrier in the target time interval needs to be reduced so as to ensure that the total SAR value of the wireless equipment in the target time interval does not exceed the standard; if the first transmission time is shorter, the transmission time of the main carrier in the target time period can be increased, on the premise that the total SAR value of the wireless device in the target time period does not exceed the standard. Therefore, the scheme can ensure that the SAR value of the wireless device which uses a plurality of carriers for communication does not exceed the 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 apparatus.

Background

In some scenarios, a terminal device may be able to communicate using multiple carriers. For example, in a Dual Connectivity (DC) scenario, a terminal device may simultaneously access a Long Term Evolution (LTE) network and a New Radio (NR) network, communicate with the LTE network device using an LTE carrier, and communicate with the NR network device using an NR carrier.

An electromagnetic wave absorption ratio (SAR) is a parameter for measuring an influence of an electromagnetic wave emitted from a wireless device on a 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 the electromagnetic waves of the wireless device, and the SAR value of the electromagnetic waves emitted by the wireless device cannot exceed a specified value.

The NR carrier wave and the LTE carrier wave have different frequency bands, and the carrier waves of different frequency bands have different radiation effects on human bodies. Therefore, the SAR values of the LTE carrier and the NR carrier of the same transmission power are different. How to ensure that the SAR values of wireless devices communicating using multiple carriers do not exceed standards is a current problem that needs to be addressed.

Disclosure of Invention

The application provides a communication method and a communication device, which can ensure that the SAR value of a wireless device which uses a plurality of carriers for communication does not exceed the 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 time interval; and determining a second transmission time according to the first transmission time, wherein the second transmission time is the transmission time for transmitting on a main carrier in the target time period, and the sum of the SAR of the main carrier and the auxiliary carrier in the target time period is less than or equal to an SAR threshold value.

The transmission time of the carrier is positively correlated with the SAR value of the carrier, if the first transmission time is longer, the transmission time of the main carrier in a target time period needs to be reduced, so that the total SAR value of the wireless equipment in the target time period is not overproof; if the first transmission time is shorter, the transmission time of the main carrier in the target time period can be increased, on the premise that the total SAR value of the wireless device in the target time period does not exceed the standard. Therefore, the scheme can ensure that the SAR value of the wireless device which uses a plurality of carriers for communication does not exceed the 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 terminal equipment, wherein the capability information is used for indicating a second transmission time for the terminal equipment to transmit signals in a target time period by using a main carrier; and the network equipment sends time information to the terminal equipment, wherein the time information is used for indicating a third transmission time for the terminal equipment to transmit signals in the target time period by using the main carrier.

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

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

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

In a fifth aspect, a terminal device is provided that includes 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 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 and/or the second aspect.

In a seventh aspect, a chip is provided for performing the method of the first aspect. Specifically, the chip includes: a processor for calling and running the computer program from the memory so that the device on which the chip is installed is used for executing the method of the first aspect.

In an eighth aspect, a chip for performing the method of the first and/or second aspect is provided. Specifically, the chip includes: a processor configured to call and run the computer program from the memory, so that the device on which the chip is installed is configured to execute the method of the first aspect and/or the second aspect.

In a ninth aspect, there is provided a computer readable storage medium for storing a computer program for causing a computer to perform the method of the first aspect.

A tenth aspect provides a computer-readable storage medium for storing a computer program for causing a computer to perform the method of the first and/or second aspect.

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.

In a twelfth aspect, a computer program product is provided, comprising computer program instructions to cause a computer to perform the method of the first and/or second aspect.

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 aspect 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 a 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 in the present application.

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 communicate with network device 110 and/or network device 120. The dashed lines in fig. 1 indicate the coverage of the network device and the double-headed arrows indicate that communication between the two devices is possible. For example, terminal device 130 may communicate with network device 110 and/or network device 120 via electromagnetic waves, and network device 110 may communicate with network device 120 via electromagnetic waves.

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

Network device 110 and/or network device 120 may be access network devices that conform 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-3GPP) network devices such as Access Gateways (AGFs). Network device 110 and/or network device 120 may also be relay stations, access points, vehicle devices, wearable devices, and other types of devices.

The communication system 100 is only an example, and a communication system to which the present application is applied is not limited thereto.

The terminal device 130 may communicate with the network device 110 or the network device 120 through Carrier Aggregation (CA). In the CA scenario, the terminal device 130 may use multiple carriers for communication at the same time, increasing 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 DC. In a DC scenario, a plurality of Cell Groups (CGs) may serve a terminal device, where the plurality of CGs may include a master CG (master CG, MCG) and a secondary CG (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 the present application, the primary cell, the primary base station and the primary network device are equivalent; similarly, the secondary cell, the secondary base station, and the secondary network device are equivalent; the above concepts are not further 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; or, 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 device in a DC scenario.

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

Further, the terminal apparatus 130 may or may not use CA when communicating with the main base station; the terminal device 130 may or may not use CA when communicating with the secondary base station.

Hereinafter, the communication method provided in 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 a target time period.

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

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

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

Method 200 will now be described with the example of the execution means of method 200 being an EN-DC terminal.

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 (FDD) base station, and the NR base station is, for example, an NR Time Division Duplex (TDD) base station.

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

The first transmission time may be interpreted as: the first transmission time length.

For example, the target period is 1 slot (slot), the slot 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 10 symbols long.

The first transmission time may also be interpreted as: a first transmit time fraction; that is, the length of the transmission time for transmission on the secondary carrier is a proportion of the length of the target period.

For example, the target period is 1 slot (slot) which includes 14 symbols, wherein 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 ten-quarters of a slot (or five-seventeen).

The explanations above regarding the first transmission time also apply to the second transmission time as well as to the third transmission time described below.

The EN-DC terminal can 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 (RRC) connection reconfiguration message. The EN-DC terminal can obtain the uplink and downlink configuration of the NR TDD network by reading the broadcast message of the NR TDD base station.

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

After the EN-DC terminal determines the uplink and downlink configuration of the NR TDD network, reporting capability information to an LTE FDD base station to indicate the transmitting time of the EN-DC terminal for transmitting a signal to the LTE FDD base station in a target time period; when sending the capability information to the LTE FDD base station, the EN-DC terminal needs to disconnect from the NR TDD base station, and reconnect to the NR TDD base station after reporting the capability information. Therefore, scheme 2 reduces the number of connections of the EN-DC terminal to the NR TDD base station, compared to scheme 1, thereby reducing signaling overhead.

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

After acquiring the uplink and downlink configurations of the NR TDD network, the EN-DC terminal may perform the following steps to determine the transmission time for transmitting on the main carrier within the target time period.

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

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

Optionally, the first transmission power is a maximum transmission power of the EN-DC terminal transmitting on the auxiliary carrier, and thus, the obtained second transmission time is a shortest transmission time for the EN-DC terminal to transmit using the main carrier, and the shortest transmission time and a power of the main carrier corresponding to the shortest transmission time are capability information of the EN-DC terminal.

After the EN-DC terminal determines the capability information, the EN-DC terminal can actively send the capability information to the main cell to which the main carrier belongs, so that the main base station configures the uplink transmission time of the main 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 that the master base station reports the capability information. The capability information may be carried in a Tracking Area Update (TAU) message.

After the master base station acquires the capability information, configuring the transmission time (i.e., third transmission time) of the master carrier in the target time period for the EN-DC terminal through a Time Division Multiplexing (TDM) template (pattern); alternatively, the transmission time (i.e., the third transmission time) of the EN-DC terminal transmitting using the primary carrier in the target period may also be indicated by an RRC message or 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 time period does not exceed the SAR threshold value 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 a total power backoff of the primary and secondary carriers, e.g., reducing the transmit power of the primary carrier and the transmit power of the secondary carrier.

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

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

The above scheme determines the transmission time of the main carrier according to the transmission time of the auxiliary carrier, so that the sum of the SAR generated by the auxiliary carrier and the main carrier is less than the specified SAR value, and the SAR value of a wireless device (such as a terminal device or a network device) which uses 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 statically configured. For example, the NR TDD network supports uplink and downlink configuration for dynamically changing a part of symbols, 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 static configuration. For the case of the auxiliary carrier static configuration, it is difficult to adjust the transmission time of the auxiliary carrier based on the transmission time of the main carrier, and compared with the scheme of adjusting the transmission time of the auxiliary carrier according to the transmission time of the main carrier, the method 200 can ensure that the SAR value of the signal does not exceed the standard under the case of the auxiliary 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. However, the application scenario of the method 200 is not limited to this, and 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 main base station is an LTE TDD base station, the main base station may adjust the transmission time of the main carrier by configuring uplink and downlink configuration conditions of the uplink and downlink variable subframes; if the main base station is an NR TDD base station, the main base station can adjust the transmission time of the main carrier by configuring the uplink and downlink configuration condition of the 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.

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

s310, the network equipment receives capability information from the terminal equipment, wherein the capability information is used for indicating a second transmission time for the terminal equipment to transmit signals in a target time interval by using the main carrier.

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

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 equipment is a main cell, the network equipment can directly receive the capability information from the terminal equipment and directly send time information to the terminal equipment; when the network device is a secondary cell, the network device may receive the capability information from the terminal device and forward to the primary cell, and the network device may receive the time information from the primary cell and forward to the terminal device.

The second transmission time and the third transmission time may be equal or unequal. The specific manner of receiving the capability information and sending the time information by the network device may refer to the related description in the method 200, and for brevity, the description is not repeated 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 transmission time.

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

Optionally, the method 300 further comprises:

and 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 detailed processes and advantageous effects of the above optional embodiments may refer to the related descriptions in the method 200, and are not described herein again.

Examples of the communication methods provided herein are described in detail above. It is to be understood that the communication device includes hardware structures and/or software modules for performing the respective functions in order to realize the above functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives 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 communication device may be divided into functional units according to the above method examples, 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 unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. It should be noted that the division of the units in the present application is schematic, and is only one division of logic functions, and there may be another division manner in actual implementation.

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, may further include a transmitting unit 420 and a receiving unit 430, where the transmitting unit 420 can perform the transmitting step under the control of the processing unit 410, and the receiving unit 430 can perform the receiving step (or the obtaining 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 time interval;

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

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

Optionally, the first transmit power is a maximum transmit 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 transmission 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 secondary cell.

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

Optionally, the sending 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 transmission time.

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

Optionally, the sending unit 420 is specifically configured to: and after the primary cell is accessed again, the capability information is sent to the primary cell.

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

Optionally, the processing unit 410 is specifically configured to: receiving time information from a network device, the time information indicating a third transmit time for transmitting on the primary carrier within the target time period; when the third transmission time is greater than the second transmission time, performing a power backoff of the primary carrier, or performing a total power backoff of the primary carrier.

Fig. 5 is a schematic structural diagram of another communication device provided in the present application. The apparatus 500 comprises a processing unit 510, a transmitting unit 520 and a receiving unit 530, the transmitting unit 520 being capable of performing the transmitting step under the control of the processing unit 510, the receiving unit 530 being capable of performing the receiving step (or the obtaining 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 transmission time for the terminal device to transmit signals in a target time period by using a main carrier;

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

Optionally, the sending unit 520 is further configured to: and sending uplink and downlink configuration information of the secondary cell to the terminal equipment, wherein the uplink and downlink configuration information is used for the terminal equipment to determine the second transmission time.

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 lines in fig. 6 indicate that the unit or the module is optional. The apparatus 600 may be used to implement the methods described in the method embodiments above. The device 600 may be an end device or a network device or chip.

The apparatus 600 includes one or more processors 601, and the one or more processors 601 may support the apparatus 600 to implement the methods in the method embodiments corresponding to fig. 2 to fig. 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 (CPU). The CPU may be used to control the apparatus 600, execute software programs, and process data of 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 and 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, and the chip may be a component of a terminal device or a network device or other wireless communication device.

Also for example, the device 600 may be a terminal device or a network device, and 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 comprise one or more memories 602, on which programs 604 are stored, which programs 604 are executable by the processor 601 to generate instructions 603, so that the processor 601 performs the methods described in the above method embodiments according to the instructions 603. Optionally, data may also be stored in the memory 602. Alternatively, the processor 601 may also read data stored in the memory 602, the data may be stored at the same memory address as the program 604, and the data may be stored at a different memory address from the program 604.

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

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

The specific way in which the processor 601 executes the communication method may be seen in the related description of the method embodiments.

It should be understood that the steps of the above-described method embodiments may be performed by logic circuits in the form of hardware or instructions in the form of software in the processor 601. The processor 601 may be a CPU, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or other programmable logic device, such as a discrete gate, a transistor logic device, or a discrete hardware component.

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

The computer program product may be stored in the memory 602, for example, as a 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, linking and the like.

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

Such as memory 602. The memory 602 may be either volatile memory or nonvolatile memory, or the memory 602 may include both volatile and nonvolatile memory. The non-volatile 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. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes and the generated technical effects of the above-described apparatuses and devices may refer to the corresponding processes and technical effects in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, the disclosed system, apparatus and method can be implemented in other ways. For example, some features of the method embodiments described above may be omitted, or not performed. The above-described embodiments of the apparatus are merely exemplary, the division of the unit is only one logical function division, and there may be other division ways in actual implementation, and a plurality of units or components may be combined or integrated into another system. In addition, the coupling between the units or the coupling between the components may be direct coupling or indirect coupling, and the coupling includes electrical, mechanical or other connections.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the processes do not mean the execution sequence, and the execution sequence of the processes should be determined by the functions and the inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Additionally, the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association relationship describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In short, the above description is only a preferred embodiment of the present disclosure, and is not intended to limit the scope of the present disclosure. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

A method of communication, comprising:

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

and determining second transmission time according to the first transmission time, wherein the second transmission time is the transmission time for transmitting on a main carrier in the target time period, and the sum of the electromagnetic wave absorption ratio SAR of the main carrier and the auxiliary carrier in the target time period is less than or equal to an SAR threshold value.
The method of claim 1, wherein determining a second transmission time from the first transmission time comprises:

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

determining a second SAR from the SAR threshold and the first SAR, the second SAR being less than or equal to a difference of the SAR threshold and the first SAR;

determining the second transmission time according to the first SAR and the second SAR, wherein the second transmission time is positively correlated with the difference value of the first SAR and the second SAR, and the second transmission time is negatively correlated with the transmission power of the main carrier.
The method of claim 2, wherein the first transmit power is a maximum transmit power.
The method of any of claims 1-3, wherein the determining a 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 transmission time according to the uplink and downlink configuration information.
The method of claim 4, wherein the uplink and downlink configuration information is carried in a broadcast message of the secondary cell.
The method according to claim 4 or 5, wherein before the terminal device acquires the uplink and downlink configuration information of the secondary cell to which the secondary carrier belongs, the method further includes:

and the terminal equipment is accessed to the auxiliary cell.
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.
The method of any one of claims 1 to 7, further comprising:

and the terminal equipment sends capability information to the main cell to which the main carrier belongs, wherein the capability information is used for indicating the second transmission time.
The method of claim 8, wherein the capability information is carried in a Tracking Area Update (TAU) message.
The method according to claim 8 or 9, wherein the terminal device sends capability information to the network device, comprising:

and the terminal equipment sends the capability information to the main cell after re-accessing the main cell.
The method of any one of claims 8 to 10, further comprising:

and the terminal equipment acquires indication information from the network equipment, and the indication information indicates the terminal equipment to report the capability information.
The method of any one of claims 1 to 11, further comprising:

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

and when the third transmission time is greater than the second transmission time, executing power backoff of the primary carrier, or executing total power backoff of the primary carrier and the secondary carrier.
A method of communication, comprising:

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

and the network equipment sends time information to the terminal equipment, wherein the time information is used for indicating a third transmission time for the terminal equipment to transmit signals in the target time period by using the main carrier.
The method of claim 13, further comprising:

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 transmission time.
The method according to claim 13 or 14, wherein the uplink and downlink configuration information is carried in a radio resource control, RRC, message.
The method of any of claims 13 to 16, further comprising:

and 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.
A communication apparatus, comprising a processing unit configured to:

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

and determining second transmission time according to the first transmission time, wherein the second transmission time is the transmission time for transmitting on a main carrier in the target time period, and the sum of the electromagnetic wave absorption ratio SAR of the main carrier and the auxiliary carrier in the target time period is less than or equal to an SAR threshold value.
The apparatus according to claim 17, wherein the processing unit is specifically configured to:

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

determining a second SAR from the SAR threshold and the first SAR, the second SAR being less than or equal to a difference of the SAR threshold and the first SAR;

determining the second transmission time according to the first SAR and the second SAR, wherein the second transmission time is positively correlated with the difference value of the first SAR and the second SAR, and the second transmission time is negatively correlated with the transmission power of the main carrier.
The apparatus of claim 18, wherein the first transmit power is a maximum transmit power.
The apparatus according to any one of claims 17 to 19, 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 transmission time according to the uplink and downlink configuration information.
The apparatus of claim 20, wherein the uplink and downlink configuration information is carried in a broadcast message of the secondary cell.
The apparatus according to claim 20 or 21, wherein the processing unit is further configured to:

and accessing the secondary cell.
The apparatus of claim 20, 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.
The apparatus according to any of claims 17 to 23, wherein the apparatus further comprises 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 transmission time.
The apparatus of claim 24, wherein the capability information is carried in a Tracking Area Update (TAU) message.
The apparatus according to claim 24 or 25, wherein the sending unit is specifically configured to:

and after the primary cell is accessed again, the capability information is sent to the primary cell.
The apparatus according to any one of claims 24 to 26, further comprising a receiving unit configured to:

and acquiring indication information from the network equipment, wherein the indication information indicates to report the capability information.
The apparatus according to any one of claims 17 to 27, wherein the processing unit is specifically configured to:

receiving time information from a network device, the time information indicating a third transmit time for transmitting on the primary carrier within the target time period;

and when the third transmission time is greater than the second transmission time, executing power backoff of the primary carrier, or executing total power backoff of the primary carrier and the secondary carrier.
A communication device, comprising a processing unit, a receiving unit and a transmitting unit,

the processing unit is used for controlling the receiving unit to execute: receiving capability information from a terminal device, wherein the capability information is used for indicating a second transmission time for the terminal device to transmit signals in a target time period by using a main carrier;

the processing unit is used for controlling the sending unit to execute: and sending time information to the terminal equipment, wherein the time information is used for indicating a third transmission time for the terminal equipment to transmit signals in the target time interval by using the main carrier.
The apparatus of claim 29, wherein the sending unit is further configured to:

and sending uplink and downlink configuration information of the secondary cell to the terminal equipment, wherein the uplink and downlink configuration information is used for the terminal equipment to determine the second transmission time.
The apparatus of claim 29 or 30, wherein the uplink and downlink configuration information is carried in a Radio Resource Control (RRC) message.
The apparatus according to any of claims 29 to 31, wherein 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.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 1 to 12.
A network device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory, to perform the method of any of claims 1 to 3, and/or to perform the method of any of claims 13 to 16.
A chip, comprising: a processor for calling and running the computer program from the memory so that the device in which the chip is installed performs: the method of any one of claims 1 to 12.
A chip, comprising: a processor for calling and running the computer program from the memory so that the device in which the chip is installed performs: the method of any one of claims 1 to 3, and/or the method of any one of claims 13 to 16.
A computer-readable storage medium storing a computer program for causing a computer to execute: the method of any one of claims 1 to 12.
A computer-readable storage medium storing a computer program for causing a computer to execute: the method of any one of claims 1 to 3, and/or the method of any one of claims 13 to 16.
A computer program product comprising computer program instructions that cause a computer to perform: the method of any one of claims 1 to 12.
A computer program product comprising computer program instructions that cause a computer to perform: the method of any one of claims 1 to 3, and/or the method of any one of claims 13 to 16.
A computer program, characterized in that the computer program causes a computer to execute: the method of any one of claims 1 to 12.
A computer program, characterized in that the computer program causes a computer to execute: the method of any one of claims 1 to 3, and/or the method of any one of claims 13 to 16.