CN117643111A - Wireless communication method, terminal equipment and network equipment - Google Patents

Abstract

Provided are a wireless communication method, terminal equipment and network equipment. The method includes the terminal device sending first information to the network device, the first information being used to indicate at least one of the following parameters: the number of first devices used by the terminal device; the number of first devices used by the terminal device. Configuration information of the device; or transmission indicators that the terminal device can meet; wherein the first device includes one or more of a transmission channel, a transmission antenna, and a power amplifier. By indicating the first information to the network device, the terminal device makes the number of transmission channels used by the terminal device, configuration information or the transmission indicators that can be satisfied visible to the network device, so that the network device can accurately schedule the terminal device.

Description

Wireless communication method, terminal equipment and network equipment Technical field

The present application relates to the field of communication technology, and more specifically, to a wireless communication method, terminal equipment and network equipment.

Background technique

In the current standard, the terminal device will report the power level corresponding to the maximum power capability of the terminal device to the network device. However, the terminal device does not send to the network device the number of transmission channels used by the terminal device to achieve this power level.

Since the number of transmission channels used by the terminal equipment is unknown to the network equipment, the network equipment cannot determine what transmission index requirements the terminal equipment should meet, and it is impossible to accurately schedule the terminal equipment, making it difficult to ensure the transmission of the terminal equipment. performance.

Contents of the invention

This application provides a wireless communication method, terminal equipment and network equipment, so that the network equipment can determine the transmission index requirements that the terminal equipment should meet, thereby ensuring the transmission performance of the terminal equipment.

In a first aspect, a wireless communication method is provided, including: a terminal device sending first information to a network device, the first information being used to indicate at least one of the following parameters: a first device used by the terminal device The quantity; the configuration information of the first device used by the terminal equipment; or the transmission indicators that the terminal equipment can meet; wherein the first device includes one or more of a transmission channel, a transmission antenna, and a power amplifier. .

In a second aspect, a wireless communication method is provided, including: a network device receiving first information sent by a terminal device, the first information being used to indicate at least one of the following parameters: a first device used by the terminal device The quantity; the configuration information of the first device used by the terminal equipment; or the transmission indicators that the terminal equipment can meet; wherein the first device includes one or more of a transmission channel, a transmission antenna, and a power amplifier. .

In a third aspect, a terminal device is provided, including: a sending module configured to send first information to a network device, where the first information is used to indicate at least one of the following parameters: a first device used by the terminal device The quantity; the configuration information of the first device used by the terminal equipment; or the transmission indicators that the terminal equipment can meet; wherein the first device includes one or more of a transmission channel, a transmission antenna, and a power amplifier. .

In a fourth aspect, a network device is provided, including: a receiving module configured to receive first information sent by a terminal device, where the first information is used to indicate at least one of the following parameters: a first parameter used by the terminal device. The number of components; the configuration information of the first component used by the terminal equipment; or the transmission indicators that the terminal equipment can meet; wherein the first component includes one or more of a transmission channel, a transmission antenna, and a power amplifier. kind.

In a fifth aspect, a terminal device is provided, including a memory and a processor, the memory is used to store a program, and the processor is used to call the program in the memory to execute the method as described in the first aspect.

A sixth aspect provides a network device, including a memory and a processor, the memory is used to store programs, and the processor is used to call the program in the memory to execute the method described in the second aspect.

In a seventh aspect, a device is provided, including a processor for calling a program from a memory to execute the method described in the first aspect.

In an eighth aspect, a device is provided, including a processor for calling a program from a memory to execute the method described in the second aspect.

In a ninth aspect, a chip is provided, including a processor for calling a program from a memory, so that a device equipped with the chip executes the method described in the first aspect.

In a tenth aspect, a chip is provided, including a processor for calling a program from a memory, so that a device installed with the chip executes the method described in the second aspect.

In an eleventh aspect, a computer-readable storage medium is provided, with a program stored thereon, and the program causes a computer to execute the method described in the first aspect.

In a twelfth aspect, a computer-readable storage medium is provided, with a program stored thereon, and the program causes the computer to execute the method described in the second aspect.

In a thirteenth aspect, a computer program product is provided, including a program that causes a computer to execute the method described in the first aspect.

A fourteenth aspect provides a computer program product, including a program that causes a computer to execute the method described in the second aspect.

In a fifteenth aspect, a computer program is provided, the computer program causing a computer to execute the method described in the first aspect.

In a sixteenth aspect, a computer program is provided, the computer program causing a computer to execute the method described in the second aspect.

In the embodiment of the present application, the terminal device indicates the first information to the network device, so that the number of transmission channels used by the terminal device, the configuration information or the transmission indicators that can be met are visible to the network device, so that the network device can accurately communicate with the terminal device. Schedule.

Description of drawings

Figure 1 is an example diagram of a system architecture to which embodiments of the present application can be applied.

Figure 2 is an example diagram of an implementation architecture of a terminal device with dual transmission channels.

Figure 3 is a schematic flow chart of a wireless communication method provided by an embodiment of the present application.

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

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

Figure 6 is a schematic structural diagram of a device provided by an embodiment of the present application.

Detailed ways

Communication system architecture

Figure 1 is a wireless communication system 100 applied in the embodiment of the present application. The wireless communication system 100 may include a network device 110 and a terminal device 120. The network device 110 may be a device that communicates with the terminal device 120 . The network device 110 may provide communication coverage for a specific geographical area and may communicate with terminal devices 120 located within the coverage area.

Figure 1 exemplarily shows one network device and two terminal devices. Optionally, the wireless communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. This document The application examples do not limit this.

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

It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: fifth generation (5th generation, 5G) systems or new radio (NR), long term evolution (long term evolution, LTE) systems , LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), etc. The technical solution provided by this application can also be applied to future communication systems, such as the sixth generation mobile communication system, satellite communication systems, and so on.

The terminal equipment in the embodiment of the present application may also be called user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (mobile Terminal, MT). ), remote station, remote terminal, mobile device, user terminal, terminal, wireless communications equipment, user agent or user device. The terminal device in the embodiment of the present application may be a device that provides voice and/or data connectivity to users, and may be used to connect people, things, and machines, such as handheld devices and vehicle-mounted devices with wireless connection functions. The terminal device in the embodiment of the present application may be a mobile phone (mobile phone), tablet computer (Pad), notebook computer, handheld computer, mobile internet device (mobile internet device, MID), wearable device, virtual reality (virtual reality, VR) equipment, augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, smart Wireless terminals in the power grid (smart grid), wireless terminals in transportation safety (transportation safety), wireless terminals in smart cities (smart city), wireless terminals in smart homes (smart home), etc. Optionally, the UE may be used to act as a base station. For example, a UE may act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc. For example, cell phones and cars use sidelink signals to communicate with each other. Cell phones and smart home devices communicate between each other without having to relay communication signals through base stations.

The network device in the embodiment of the present application may be a device used to communicate with a terminal device. The network device may also be called an access network device or a wireless access network device. For example, the network device may be a base station. The network device in the embodiment of this application may refer to a radio access network (radio access network, RAN) node (or device) that connects the terminal device to the wireless network. A base station can broadly cover various names as follows, or be replaced with the following names, such as: Node B (NodeB), evolved base station (evolved NodeB, eNB), next generation base station (next generation NodeB, gNB), relay station, Access point, transmission point (transmitting and receiving point, TRP), transmitting point (TP), main station MeNB, secondary station SeNB, multi-standard wireless (MSR) node, home base station, network controller, access node , wireless node, access point (AP), transmission node, transceiver node, base band unit (BBU), radio frequency remote unit (Remote Radio Unit, RRU), active antenna unit (active antenna unit) , AAU), radio head (remote radio head, RRH), central unit (central unit, CU), distributed unit (distributed unit, DU), positioning node, etc. The base station may be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. A base station may also refer to a communication module, modem or chip used in the aforementioned equipment or devices. The base station can also be a mobile switching center and a device that undertakes base station functions in device-to-device D2D, vehicle-to-everything (V2X), machine-to-machine (M2M) communications, and in 6G networks. Network side equipment, equipment that assumes base station functions in future communication systems, etc. Base stations can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology and specific equipment form used by the network equipment.

Base stations can be fixed or mobile. For example, a helicopter or drone may be configured to act as a mobile base station, and one or more cells may move based on the mobile base station's location. In other examples, a helicopter or drone may be configured to serve as a device that communicates with another base station.

In some deployments, the network device in the embodiment of this application may refer to a CU or a DU, or the network device includes a CU and a DU. gNB can also include AAU.

Network equipment and terminal equipment can be deployed on land, indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and satellites in the sky. In the embodiments of this application, the scenarios in which network devices and terminal devices are located are not limited.

It should be understood that the communication device involved in this application may be a network device or a terminal device. For example, the first communication device is a network device, and the second communication device is a terminal device. For another example, the first communication device is a terminal device, and the second communication device is a network device. For another example, the first communication device and the second communication device are both network devices, or both are terminal devices.

It should also be understood that all or part of the functions of the communication device in this application can also be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform (such as a cloud platform).

Maximum transmit power of terminal equipment

In some standards, such as the 3rd generation partnership project (3GPP) standard, multiple power classes (PC) are defined for the maximum transmit power capability of terminal equipment. Different power levels among the multiple power levels correspond to different maximum transmit powers (or maximum transmit power capabilities). For example, the maximum transmit power corresponding to PC1.5 is 29dBm, the maximum transmit power corresponding to PC2 is 26dBm, the maximum transmit power corresponding to PC3 is 23dBm, etc. If the terminal equipment has multiple transmission channels (also called transmission channels or transmission branches), the terminal equipment can add the power of the multiple transmission channels, so that the total power obtained after adding the multiple transmission channels reaches the terminal The power level corresponding to the device.

Implementation architecture of terminal equipment

As mentioned above, some standards define the power level capabilities of terminal equipment, but such standards do not restrict the specific implementation architecture that the terminal equipment needs to adopt to achieve this power level. Therefore, terminal equipment with the same power level may have different architectures to achieve the capability of the power level. Taking the power level capability of the terminal device as PC2 as an example, the terminal device may use one transmission channel to reach PC2, or may use two transmission channels to reach PC2. For example, the terminal device may support uplink multiple in multiple out (MIMO), transmit diversity (Tx diversity, TxD), evolved universal mobile communication system terrestrial wireless access-new wireless dual connectivity (evolved universal mobile telecommunications system terrestrial radio access-new radio dual connection (EN-DC), new radio-evolved universal mobile telecommunications system terrestrial radio access dual connection (NE-DC) , uplink carrier aggregation (CA) terminal equipment, etc. Such terminal equipment usually has two or more transmission channels. Taking a terminal device with two transmission channels as an example, when the terminal device realizes the maximum transmission power corresponding to PC2, the terminal device can adopt several typical architectures as shown in Figure 2. In Architecture 1 of Figure 2, two PAs are provided on the two transmission channels of the terminal equipment, and the corresponding power level capabilities of the two PAs are PC3. In Architecture 2 of Figure 2, two PAs are provided on the two transmission channels of the terminal equipment, and the corresponding power level capabilities of the two PAs are PC2 and PC3 respectively. In Architecture 3 of Figure 2, two PAs are provided on the two transmission channels of the terminal equipment, and the corresponding power level capabilities of the two PAs are PC2.

It should be noted that, as long as there is no conflict, the transmission channel, PA, transmission path, transmission antenna, and antenna port mentioned in this application can be replaced with each other.

Different working modes of terminal equipment

Terminal equipment can work in different working modes. The working modes mentioned in the embodiments of this application can be distinguished according to the number of data streams that the terminal device needs to transmit simultaneously. For example, the terminal device can work in a mode of transmitting only one data stream. This working mode can be called single-stream mode. In single-stream mode, the terminal device can use one transmission channel to send one data stream at the same time. The single stream mode may also be called a single antenna mode or a single antenna port (single antenna port) mode. For another example, if the terminal device has two or more transmission channels, the terminal device can work in an operating mode of transmitting multiple data streams. For example, the terminal device may operate in an operating mode that transmits two data streams simultaneously (this operating mode may also be called dual-stream mode). For another example, the terminal device can work in an operating mode of transmitting three or more data streams. The working mode of transmitting two or more data streams can be collectively referred to as multi-stream mode. The multi-stream mode may refer to the MIMO mode, for example. Of course, it may also refer to other operating modes that utilize multiple transmission channels for uplink transmission.

If the terminal device has two or more transmission channels, the network device can schedule the working mode of the terminal device according to actual needs to change the number of data streams that the terminal device needs to send simultaneously. For terminal equipment, no matter which working mode the terminal equipment is in, its transmit power should be able to reach the power level capability reported by the terminal equipment.

Terminal equipment emission index requirements

Assuming that the terminal device works in a certain working mode, and the number of transmission channels the terminal device has is greater than the number of data streams that need to be transmitted in the working mode, then the number of transmitting channels that the terminal device can use in the working mode There are many options available.

Taking a terminal device with two transmission channels as an example, assuming that the terminal device operates in a single-stream mode, the terminal device can use a single transmission channel to transmit, or can use multiple transmission channels to transmit together. Taking Figure 2 as an example, if the terminal equipment adopts architecture 2 in Figure 2, that is, the terminal equipment has two transmission channels, the corresponding power level capability of the PA on one transmission channel is PC3, and the corresponding power level of the other PA The capability is PC2 (that is, the terminal device adopts the configuration of "PC3PA+PC2PA"). If the terminal device works in single-stream mode, and the maximum power level capability reported by the terminal device to the network device is PC2, the terminal device can use a single transmission channel to transmit, and the power level capability corresponding to the PA on the transmission channel Configure it as PC2, so that the transmitting capability of the terminal device meets the maximum transmit power requirements of PC2. Alternatively, the terminal device can also use two transmission channels for transmission, and configure the corresponding power level capabilities of the PAs on the two transmission channels to PC3. The two transmission channels can be transmitted in a transmission diversity manner, so that the transmission capability of the terminal equipment reaches the maximum transmission power requirement of PC2.

However, if the number of transmission channels used by the terminal equipment is different, the transmission index requirements that the terminal equipment needs to comply with are usually different. For example, if the network device configures the terminal device to work in single-stream mode, and the terminal device uses a single transmission channel to meet the power level capability requirements of the terminal device, then the transmission indicator requirement that the terminal device needs to meet is the single-channel indicator ( Or called single channel indicator, single transmitter indicator, single antenna indicator or single antenna port indicator) requirements; for another example, if the network device configures the terminal device to work in single stream mode, and the terminal device uses two transmitters channel to meet the power level capability requirements of the terminal equipment, then the transmission index requirements that the terminal equipment needs to meet are the transmit diversity index (or TxD index) requirements corresponding to the two transmission channels. The transmit diversity index refers to one or more indexes that need to be met for transmission using transmit diversity technology. The one or more indicators may include at least one of the following indicators: transmitter power (transmitter power), dynamic output power (output power dynamics), transmission signal quality (transmit signal quality), output radio frequency transmission spectrum (output RF spectrum emissions).

According to the content introduced above, in the current standard, the terminal equipment will report the power level corresponding to the maximum power capability. However, the end device does not send the number of transmit channels it uses to the network device. That is, the number of transmit channels used by the end device is unknown to the network device.

Taking the terminal device with two transmission channels as shown in Figure 2 as an example, the terminal device may report to the network device that the power level it supports is PC2, and report that it supports uplink MIMO transmission of up to 2 streams, but the network device cannot. It is known which architecture in Figure 2 is used by the terminal device to achieve the corresponding power level of the terminal device. When the terminal device works in single-stream mode, if the terminal device adopts architecture 2 in Figure 2, the network device does not know the working status of the transmission channel in the terminal device (that is, the network device does not know the terminal device). In single-stream mode, is one transmit channel used to work, or two transmit channels are used to work at the same time).

If the network equipment cannot know the number of transmission channels used by the terminal equipment, then the network equipment cannot determine which transmission indicator requirements the terminal equipment should meet (such as single channel indicators or transmission diversity indicators), and it is impossible to accurately schedule the terminal equipment. Therefore, it is difficult to guarantee the transmission performance of the terminal equipment.

For example, assuming that the terminal device works in single-stream mode, if the terminal device uses two transmit channels to transmit, the intermodulation impact between the two transmit channels will bring more consequences than if the terminal device uses a single transmit channel to transmit. Severe out-of-band useless emissions require terminal equipment to use greater backoff power to meet out-of-band emission index requirements. In particular, if the terminal equipment uses high-order modulation, and the resource block (RB) allocated to the terminal equipment is located close to the edge of the channel, and if the terminal equipment uses two transmission channels to transmit, then the two transmission channels The fallback power will be very high, which results in the maximum transmit power capability of the terminal device being lower than the maximum transmit power capability of the terminal device using a single transmit channel. Therefore, in order to facilitate the network equipment to control the power of the terminal equipment, the network equipment needs to know the number or configuration information of the terminal equipment's transmission channels to determine the transmission index requirements that the terminal equipment needs to meet, thereby accurately determining the maximum transmission power of the terminal equipment. ability.

Similarly, if the terminal equipment uses three transmission channels to achieve the power level capability reported by the terminal equipment, under the same resource configuration, compared with the terminal equipment using a single or two transmission channels to achieve the power level capability, the three transmission channels The intermodulation effect between them brings more serious out-of-band unwanted emissions, so the terminal equipment needs greater backoff power to meet the out-of-band emission index requirements. Therefore, when the terminal device uses three transmit channels to transmit simultaneously, the maximum transmit power capability of the terminal device is lower than the maximum transmit power capability of the terminal device when it uses a single or two transmit channels. Therefore, in order to facilitate the network equipment to control the power of the terminal equipment, the network equipment needs to know the number or configuration information of the terminal equipment's transmission channels to determine the transmission index requirements that the terminal equipment needs to meet, thereby accurately determining the maximum transmission power of the terminal equipment. ability.

In order to enable the network device to clarify what emission indicator requirements the terminal device should meet, so as to accurately schedule the terminal device, the terminal device can instruct the network device to use explicit instructions, implicit instructions, or default instructions. The quantity and/or configuration information of the first device (which can be a transmitting channel, PA or transmitting antenna) (or used by the terminal device in a certain working mode). The configuration information of the first device may include the power level capability corresponding to each device in the first device used by the terminal device. Alternatively, the configuration information of the first device may include both the number of the first devices used by the terminal device and the power level capability corresponding to each of the first devices used by the terminal device.

In some embodiments, the terminal device can work in the first working mode. The first operating mode may include a single-stream mode and/or a multi-stream mode. The multi-stream mode may refer to a dual-stream mode that transmits two data streams at the same time, or a multi-stream mode that transmits three or more data streams (dual-stream mode is also a type of multi-stream mode). For example, the multi-stream mode may refer to MIMO mode. Correspondingly, the quantity or configuration information of the first device used by the terminal device may refer to the quantity or configuration information of the first device used by the terminal device in the first working mode.

The terminal device may include one first component or multiple first components. The first device mentioned in the embodiment of this application may refer to a power transmitting device. For example, the first component may include one or more of the following components: a transmitting channel, a transmitting antenna, and a PA. Taking the terminal equipment using the architecture shown in Figure 2 as an example, the terminal equipment includes two first devices, that is, the terminal equipment includes two transmission channels, or two transmission antennas, or two PAs.

The number of first devices used by the terminal equipment is different, or the configuration information of the first devices used by the terminal equipment is different. If the number or configuration information of the first device used by the terminal equipment is different, the emission index requirements that the terminal equipment needs to meet (such as the out-of-band emission index requirements mentioned above) may be different.

As an example, the terminal device may adopt one of the implementation architectures shown in FIG. 2 . Taking the power level capability reported by the terminal device as PC2 as an example, if the terminal device adopts architecture 1 ("PC3PA+PC3PA") in Figure 2, in order to meet the power level capability requirements corresponding to PC2, the terminal device needs to When two PAs are used to transmit simultaneously, the terminal equipment needs to meet the requirements of the transmit diversity index.

If the terminal equipment adopts architecture 2 ("PC2PA+PC3PA") in Figure 2, in order to meet the power level capability requirements corresponding to PC2, the terminal equipment can use a single PC2PA to transmit, or use two PAs to simultaneously transmit a maximum of 23dBm. power. If the terminal equipment uses a single PA to transmit, the terminal equipment needs to meet the requirements of the single antenna indicator; if the terminal equipment uses two PAs to transmit, the terminal equipment needs to meet the requirements of the transmit diversity indicator.

If the terminal equipment adopts architecture 3 ("PC2PA+PC2PA") in Figure 2, in order to meet the power level capability requirements corresponding to PC2, the terminal equipment can use a single PC2PA to transmit, or use two PAs to simultaneously transmit a maximum of 23dBm. power. If the terminal equipment uses a single PA to transmit, the terminal equipment needs to meet the requirements of the single antenna indicator; if the terminal equipment uses two PAs to transmit, the terminal equipment needs to meet the requirements of the transmit diversity indicator.

Below, with reference to Figure 3, from the perspective of interaction between terminal equipment and network equipment, the embodiment of the present application will be explained in more detail with examples.

Referring to Figure 3, in step S310, the terminal device sends first information to the network device. The first information may be capability information of the terminal device. The first information may be capability information related to the first device. For example, the first information may be PA capability information. Alternatively, the first information may be power capability information of a transmission channel of the terminal device. The first information may be represented by TxD_PAconfigurations, for example. In some embodiments, the first information may be carried in radio resource control (RRC) signaling, such as UE capability information (UE capability information) carried in RRC signaling.

The first information can be used by the network device to determine the transmission power indicator that the terminal device needs to meet. Taking the terminal device operating in single-stream mode as an example, the first information can be used by the network device to determine whether the terminal device needs to meet the requirements of the single-channel index or the requirements of the transmit diversity index. In some embodiments, network equipment may also refer to a test instrument or test instrument that can test the transmission power indicators that the terminal equipment needs to meet.

The first information may be used to indicate at least one of the following parameters (the following parameters of the terminal device in a certain working mode): the number of first devices used by the terminal device; configuration information of the first device used by the terminal device; or The terminal equipment meets (or can meet) the transmission indicators (or transmission indicator requirements, which may include, for example, single channel indicators and/or transmission diversity indicators).

For example, the first information may include the quantity or configuration information of the first devices used by the terminal device to achieve the power level capability corresponding to the terminal device (see the description of Embodiments 1 and 2 below). For another example, the first information may indirectly indicate the quantity or configuration information of the first device used by the terminal device to achieve the power level capability corresponding to the terminal device (see Examples 1 and 2 in Embodiment 3 below). For another example, the first information may indicate a transmission indicator that the terminal device can meet (see Example 3 in Embodiment 3 below).

The configuration information of the first device may include the number of the first devices used by the terminal device and the power level capability corresponding to each of the first devices used by the terminal device. Taking the terminal device using architecture 2 shown in Figure 2 as an example, if the terminal device uses two PAs at the same time, the first information may indicate that the number of PAs used by the terminal device is 2; or, the first information may indicate that the number of PAs used by the terminal device is 2. The number of PAs is 2, and the corresponding power level capabilities of the two PAs are PC2 and PC3 respectively.

After receiving the first information, the network device may determine the transmission indicator requirements that the terminal device needs to meet or the maximum transmission power (or maximum transmission power capability) or maximum transmission power backoff value of the terminal device based on the first information. The maximum transmit power or the maximum transmit power fallback value of the terminal device determined by the network device based on the first information may refer to the maximum transmit power capability of the terminal device after meeting the corresponding transmission indicator requirements. For example, if the network device learns through the first information that the terminal device uses two PAs to transmit at the same time, the network device can calculate the backoff power (such as 2dBm) when the terminal device transmits. Then, the network device can subtract the fallback power from the power level capability of the terminal device to obtain the maximum transmit power of the terminal device. Then, the network device can accurately schedule the terminal device according to the maximum transmit power of the terminal device. For example, the network device can accurately perform power control on the terminal device according to the maximum transmit power of the terminal device.

It can be seen from this that the embodiment of the present application sends the first information to the network device through the terminal device, so that the number and/or configuration information of the first device used by the terminal device is visible to the network device. Based on the first information, the network device can clarify the transmission index requirements that the terminal device needs to meet, thereby accurately scheduling (such as power control) the terminal device. For example, when the terminal device works in the single-stream mode, the network device can learn the number or configuration information of PAs used by the terminal device in the single-stream mode through the first information, so that it can be clear that the transmission indicator requirements that the terminal device needs to meet are: Single channel indicator requirements or transmit diversity indicator requirements, so that terminal equipment can be scheduled accurately. For another example, when the terminal device works in the dual-stream mode, the network device can learn the number or configuration information of the PAs used by the terminal device in the dual-stream mode through the first information, so that it can be clear that the transmission indicator requirement that the terminal device needs to meet is two. The transmit diversity index requirements corresponding to one PA or the transmit diversity index requirements corresponding to three or more PAs enable network equipment to accurately schedule terminal equipment.

The implementation of the first information will be described in more detail below with reference to three embodiments. Among them, the first information in Embodiment 1 is used to indicate the number of first devices used by the terminal device; the first information in Embodiment 2 is used to indicate the configuration information of the first device used by the terminal device; and in Embodiment 3 The first information is used to indicate indicators that the terminal device can meet (indicators related to transmission).

Embodiment 1: The first information indicates the number of first devices used by the terminal device

In order to be able to distinguish the emission index requirements that the terminal device needs to meet, in Embodiment 1, the terminal device reports to the network device through the first information the number of the first devices used by the terminal device. Taking the first terminal device working in single-stream mode as an example, the terminal device can report to the network device through the first information that the terminal device uses a single PA (or single transmit channel, or single transmit antenna, which can be referred to as 1T in single-stream mode). ); or, the terminal device can report to the network device through the first information that the terminal device uses two PAs (or dual transmit channels, or dual transmit antennas, dual transmit antennas may also be called 2T) in single stream mode.

Embodiment 1 enables the network device to clarify the emission index requirements that the terminal device needs to meet by reporting the number of first devices used by the terminal device. Moreover, the implementation provided by Embodiment 1 requires a smaller amount of information to be reported and is simple to implement.

The first information may indicate the number of the first device used by the terminal device in various ways. Two examples are given below.

Way 1:

The first information may be carried by at least one bit. The at least one bit may include multiple values. The multiple values correspond to the multiple quantities of the first device one-to-one.

For example, if the terminal device operates in single-stream mode, and the terminal device adopts the architecture shown in Figure 2, the first information can be carried using 1 bit. If the value of this 1 bit is 0, it can indicate that the terminal device uses a PA, a transmit channel, or a transmit antenna. In this case, the terminal equipment needs to meet the single-channel indicator requirements. For another example, if the value of this 1 bit is 1, it may indicate that the terminal equipment uses two PAs, or two transmission channels, or two transmission antennas. In this case, the terminal equipment needs to meet the transmit diversity index requirements.

Way 2:

Method 2 uses a default configuration to indicate the number of the first device used by the first terminal device. For example, the number of first devices used by the terminal device may have a default value. The first information may be used to indicate to the network device the number of first devices used by the terminal device when the number of first devices used by the terminal device is not a default value.

Taking the terminal device working in the single-stream mode as an example, if the default value of the number of first devices used by the terminal device in the single-stream mode is 1, then when the terminal device sends the first information or the bits carrying the first information to the network device, When the value of is a preset value (such as 1), it means that the number of first devices used by the terminal device is 2. In this case, the terminal equipment should meet the transmit diversity index requirements.

Or, if the default value of the number of first devices used by the terminal device in the single-stream mode is 2, when the terminal device sends the first information to the network device or the value of the bit carrying the first information is the preset value, the terminal The number of first devices used by the device is 1. In this case, the terminal equipment should meet the single-channel specification requirements.

Embodiment 2: The first information indicates the configuration information of the first device used by the terminal device

The configuration information of the first device may refer to, for example, the PA configuration information, the transmit channel configuration information, or the transmit antenna configuration information of the first device. Compared with the first information reporting only the number of the first device, the configuration information of the first device may include more information, such as the corresponding power level capability of the first device.

Taking the terminal device operating in the single-stream mode as an example, the first information may be used to indicate the configuration information of the first device used by the terminal device in the single-stream mode. If the terminal device adopts the architecture as shown in Figure 2, and the power capability level of the terminal device is PC2, the configuration information of the first device may include first configuration information and/or second configuration information. The first configuration information may be used to indicate that the terminal device uses the first device to reach PC2 in the single-stream mode, and the corresponding power level capability of the first device is PC2. The second configuration information may be used to indicate that the terminal device uses two first devices to achieve PC2 in the single-stream mode, and the corresponding power level capabilities of the two first devices are both PC3. In other words, the terminal device can select one configuration information from the configuration information {PC2; PC3+PC3} of the first device to report.

Further, the first information may also be used to indicate the configuration information of the first device used by the terminal device in the dual-stream mode. The configuration information of the first device used by the terminal device in dual-stream mode may include one or more of first configuration information, second configuration information, and third configuration information. The first configuration information can be used to indicate that the terminal device uses two first devices, and the corresponding power level capabilities of the two first devices are both PC3 (architecture 1 in Figure 2), and the second configuration information can be used to indicate that the terminal The device uses two first devices, and the corresponding power level capabilities of the two first devices are PC2 and PC3 respectively (architecture 2 in Figure 2). The third configuration information is used to indicate that the terminal device uses the two first devices. One device, and the power level capabilities corresponding to the two first devices are both PC2 (architecture 3 in Figure 2). In other words, the terminal device can select one configuration information from the configuration information {PC3+PC3; PC2+PC3; PC2+PC2} of the first device to report.

The first information may simultaneously indicate the configuration information of the first device used by the terminal device in the single-stream mode and the configuration information of the first device used by the terminal device in the dual-stream mode. Of course, in some embodiments, if the terminal device uses two first devices with the power level capability of PC3 in dual-stream mode, that is, {PC3+PC3}, then it can be defaulted that the terminal device also adopts this configuration in single-stream mode. information. In this case, the first information may not indicate the configuration information of the first device used by the terminal device in the single-stream mode.

Embodiment 3: The first information indicates the requirements or indicators that the terminal device can meet

The indicator may correspond to or be associated with at least one of the following parameters: the number of first devices used by the terminal device, configuration information of the first device used by the terminal device, and the emission indicator that the terminal device can meet.

Taking the requirement set as an example to represent the requirements or indicators that the terminal device can meet, the requirement set can be implemented in a variety of ways.

Example 1, requirement set1 can correspond to the architecture of "PC3+PC3" in Figure 2, requirement set2 corresponds to the architecture of "PC2+PC3" in Figure 2, and requirement set3 corresponds to the architecture of "PC2+PC2" in Figure 2.

Example 2, requirement set1 corresponds to the architecture of 1T PC2 in single-stream mode (1T refers to a first device (transmitting channel, transmitting antenna or power amplifier), PC2 refers to the power level capability corresponding to the first device is PC2), requirement set2 corresponds to the 2T PC3+PC3 architecture in single-stream mode (2T refers to the two first devices (transmitting channel, transmitting antenna or power amplifier), PC2 refers to the corresponding power level capabilities of the two first devices, which are PC2 and PC3 respectively) .

Example 3, requirement set1 corresponds to the single-channel indicator in single-stream mode, and requirement set2 corresponds to the transmit diversity indicator in single-stream mode.

The method embodiments of the present application are described in detail above with reference to FIGS. 1 to 3 , and the device embodiments of the present application are described in detail below with reference to FIGS. 4 to 6 . It should be understood that the description of the method embodiments corresponds to the description of the device embodiments. Therefore, the parts not described in detail can be referred to the previous method embodiments.

Figure 4 is a schematic structural diagram of a terminal device provided by an embodiment of the present application. The terminal device 400 shown in FIG. 4 includes a sending module 410. The sending module 410 may be used to send the first information to the network device. The first information is used to indicate at least one of the following parameters: the number of first devices used by the terminal device; configuration information of the first device used by the terminal device; or the transmission capacity that the terminal device can meet. index. The first device includes one or more of a transmitting channel, a transmitting antenna, and a power amplifier.

Optionally, the first information is used to indicate the number or configuration information of first devices used by the terminal device in a first working mode, where the first working mode includes a single-stream mode and/or a multi-stream mode.

Optionally, the first information is carried by at least one bit, and the at least one bit includes multiple values, and the multiple values correspond to multiple quantities of the first devices one-to-one.

Optionally, the number of first devices used by the terminal device has a default value, and the first information is used to provide the user with information to the user when the number of first devices used by the terminal device is not the default value. The network device indicates the number of first devices used by the terminal device.

Optionally, the default value of the number of first devices used by the terminal device in single-stream mode is 1. When the terminal device sends the first information to the network device or carries the first information, When the value of at least one bit is a preset value, the number of first devices used by the terminal device is 2; or, the default value of the number of first devices used by the terminal device in single-stream mode is 2, When the terminal device sends the first information to the network device or the value of at least one bit carrying the first information is a preset value, the number of the first devices used by the terminal device is 1.

Optionally, the configuration information of the first device includes the number of the first devices used by the terminal device and the power level capability corresponding to each of the first devices used by the terminal device.

Optionally, the power level capability of the terminal device is PC2, and the first information is used to indicate the configuration information of the first device used by the terminal device in the single-stream mode. The configuration information of the first device includes First configuration information and/or second configuration information, wherein the first configuration information is used to indicate that the terminal device uses a first device, and the power level capability corresponding to the first device is PC2, and the The second configuration information is used to indicate that the terminal device uses two first devices, and the corresponding power level capabilities of the two first devices are PC2 and PC3 respectively.

Optionally, the first information is used to indicate the configuration information of a first device used by the terminal device in dual-stream mode, and the configuration information of the first device includes first configuration information, second configuration information and third One or more types of configuration information, wherein the first configuration information is used to indicate that the terminal device uses two first devices, and the corresponding power level capabilities of the two first devices are both PC3, The second configuration information is used to indicate that the terminal device uses two first devices, and the corresponding power level capabilities of the two first devices are PC2 and PC3 respectively. The third configuration information is used to indicate that the The terminal equipment uses two first devices, and the corresponding power level capabilities of the two first devices are both PC2.

Optionally, the first information is used by the network device to determine the maximum transmit power and/or the maximum transmit power backoff value of the terminal device.

Figure 5 is a schematic structural diagram of a network device provided by an embodiment of the present application. The network device 500 shown in FIG. 5 includes a receiving module 510. The receiving module 510 may be used to receive the first information sent by the terminal device. The first information is used to indicate at least one of the following parameters: the number of first devices used by the terminal device; configuration information of the first device used by the terminal device; or the transmission capacity that the terminal device can meet. index. The first device includes one or more of a transmitting channel, a transmitting antenna, and a power amplifier.

Optionally, the first information is used to indicate the number or configuration information of first devices used by the terminal device in a first working mode, where the first working mode includes a single-stream mode and/or a multi-stream mode.

Optionally, the first information is carried by at least one bit, and the at least one bit includes multiple values, and the multiple values correspond to multiple quantities of the first devices one-to-one.

Optionally, the number of first devices used by the terminal device has a default value, and the first information is used to provide the user with information to the user when the number of first devices used by the terminal device is not the default value. The network device indicates the number of first devices used by the terminal device.

Optionally, the default value of the number of first devices used by the terminal device in single-stream mode is 1. When the terminal device sends the first information to the network device or carries the first information, When the value of at least one bit is a preset value, the number of first devices used by the terminal device is 2; or, the default value of the number of first devices used by the terminal device in single-stream mode is 2, When the terminal device sends the first information to the network device or the value of at least one bit carrying the first information is a preset value, the number of the first devices used by the terminal device is 1.

Optionally, the configuration information of the first device includes the number of the first devices used by the terminal device and the power level capability corresponding to each of the first devices used by the terminal device.

Optionally, the power level capability of the terminal device is PC2, and the first information is used to indicate the configuration information of the first device used by the terminal device in the single-stream mode. The configuration information of the first device includes First configuration information and/or second configuration information, wherein the first configuration information is used to indicate that the terminal device uses a first device, the corresponding power level capability of the first device is PC2, and the third The second configuration information is used to indicate that the terminal device uses two first devices, and the corresponding power level capabilities of the two first devices are PC2 and PC3 respectively.

Optionally, the first information is used to indicate the configuration information of a first device used by the terminal device in dual-stream mode, and the configuration information of the first device includes first configuration information, second configuration information and third One or more types of configuration information, wherein the first configuration information is used to indicate that the terminal device uses two first devices, and the corresponding power level capabilities of the two first devices are both PC3, The second configuration information is used to indicate that the terminal device uses two first devices, and the corresponding power level capabilities of the two first devices are PC2 and PC3 respectively. The third configuration information is used to indicate that the The terminal equipment uses two first devices, and the corresponding power level capabilities of the two first devices are both PC2.

Optionally, the first information is used by the network device to determine the maximum transmit power and/or the maximum transmit power backoff value of the terminal device.

Figure 6 is a schematic structural diagram of the device according to the embodiment of the present application. The dashed line in Figure 6 indicates that the unit or module is optional. The device 600 can be used to implement the method described in the above method embodiment. Device 600 may be a chip, terminal device or network device.

Apparatus 600 may include one or more processors 610. The processor 610 can support the device 600 to implement the method described in the foregoing method embodiments. The processor 610 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor can also be another general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), or a field programmable gate array (FPGA). Or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

Apparatus 600 may also include one or more memories 620. The memory 620 stores a program, which can be executed by the processor 610, so that the processor 610 executes the method described in the foregoing method embodiment. The memory 620 may be independent of the processor 610 or integrated in the processor 610.

Apparatus 600 may also include a transceiver 630. Processor 610 may communicate with other devices or chips through transceiver 630. For example, the processor 610 can transmit and receive data with other devices or chips through the transceiver 630 .

An embodiment of the present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to the terminal device or network device provided by the embodiments of the present application, and the program causes the computer to execute the methods performed by the terminal device or the network device in various embodiments of the present application.

An embodiment of the present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the terminal device or network device provided by the embodiments of the present application, and the program causes the computer to execute the methods performed by the terminal device or the network device in various embodiments of the present application.

An embodiment of the present application also provides a computer program. The computer program can be applied to the terminal device or network device provided by the embodiments of the present application, and the computer program causes the computer to execute the methods performed by the terminal device or the network device in various embodiments of the present application.

It should be understood that in the embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B only based on A. B can also be determined based on A and/or other information.

It should be understood that the term "and/or" in this article is only an association relationship describing related objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, and A and B exist simultaneously. , there are three situations of B alone. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship.

It should be understood that in the various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation.

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

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

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

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server or data center integrated with one or more available media. The available media may be magnetic media (eg, floppy disk, hard disk, tape), optical media (eg, digital video disc (DVD)) or semiconductor media (eg, solid state disk (SSD) )wait.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims (44)

A method of wireless communication, characterized by including: The terminal device sends first information to the network device, where the first information is used to indicate at least one of the following information: The number of first devices used by the terminal equipment; Configuration information of the first device used by the terminal device; or The emission indicators that the terminal equipment can meet; Wherein, the first device includes one or more of a transmitting channel, a transmitting antenna, and a power amplifier. The method according to claim 1, characterized in that the first information is used to indicate the number or configuration information of the first device used by the terminal device in a first working mode, and the first working mode includes a single Streaming mode and/or multi-streaming mode. The method according to claim 1 or 2, characterized in that the number of first devices used by the terminal device has a default value, and the first information is used when the number of first devices used by the terminal device does not If it is the default value, indicate to the network device the number of first devices used by the terminal device. The method of claim 3, wherein the default value of the number of first devices used by the terminal device in single-stream mode is 1. When the terminal device sends the first device to the network device, When the value of the information or at least one bit carrying the first information is a preset value, the number of first devices used by the terminal device is 2; or, the first device used by the terminal device in single-stream mode The default value of the number of devices is 2. When the terminal device sends the first information to the network device or the value of at least one bit carrying the first information is a preset value, the terminal device uses The number of the first devices is 1. The method according to claim 1 or 2, characterized in that the configuration information of the first device includes the number of the first devices used by the terminal device and the number of the first devices used by the terminal device. The corresponding power level capabilities of each device. The method of claim 5, wherein the power level capability of the terminal device is power level PC2, and the first information is used to indicate the configuration of the first device used by the terminal device in single-stream mode. Information, the configuration information of the first device includes first configuration information and/or second configuration information, wherein the first configuration information is used to indicate that the terminal device uses a first device, and the first The functional level capability corresponding to the device is PC2, the second configuration information is used to indicate that the terminal device uses two first devices, and the power level capability corresponding to the two first devices is PC3. The method of claim 5, wherein the first information is used to indicate configuration information of a first device used by the terminal device in dual-stream mode, and the configuration information of the first device includes a first configuration information, second configuration information, and third configuration information, wherein the first configuration information is used to indicate that the terminal device uses two first devices, and the two first devices The corresponding power level capabilities are PC3, the second configuration information is used to indicate that the terminal device uses two first devices, and the corresponding power level capabilities of the two first devices are PC2 and PC3 respectively, so The third configuration information is used to indicate that the terminal device uses two first devices, and the corresponding power level capabilities of the two first devices are both PC2. The method according to any one of claims 1 to 7, characterized in that the first information is used by the network device to determine the maximum transmit power and/or the maximum transmit power back-off value of the terminal device. A method of wireless communication, characterized by including: The network device receives the first information sent by the terminal device, where the first information is used to indicate at least one of the following information: The number of first devices used by the terminal equipment; Configuration information of the first device used by the terminal device; or The emission indicators that the terminal equipment can meet; Wherein, the first device includes one or more of a transmitting channel, a transmitting antenna, and a power amplifier. The method according to claim 9, characterized in that the first information is used to indicate the number or configuration information of the first device used by the terminal device in a first working mode, and the first working mode includes a single Streaming mode and/or multi-streaming mode. The method according to claim 9 or 10, characterized in that the number of first devices used by the terminal device has a default value, and the first information is used when the number of first devices used by the terminal device does not If it is the default value, indicate to the network device the number of first devices used by the terminal device. The method of claim 11, wherein the default value of the number of first devices used by the terminal device in single-stream mode is 1. When the terminal device sends the first device to the network device, When the value of the information or at least one bit carrying the first information is a preset value, the number of first devices used by the terminal device is 2; or, the first device used by the terminal device in single-stream mode The default value of the number of devices is 2. When the terminal device sends the first information to the network device or the value of at least one bit carrying the first information is a preset value, the terminal device uses The number of the first devices is 1. The method according to claim 9 or 10, characterized in that the configuration information of the first device includes the number of the first devices used by the terminal device and the number of the first devices used by the terminal device. The corresponding power level capabilities of each device. The method according to claim 13, characterized in that the power level capability of the terminal equipment is power level PC2, and the first information is used to indicate the configuration of the first device used by the terminal equipment in single stream mode. Information, the configuration information of the first device includes first configuration information and/or second configuration information, wherein the first configuration information is used to indicate that the terminal device uses a first device, and the first The power level capability corresponding to the device is PC2, the second configuration information is used to indicate that the terminal device uses two first devices, and the power level capability corresponding to the two first devices is PC3. The method of claim 13, wherein the first information is used to indicate configuration information of a first device used by the terminal device in dual-stream mode, and the configuration information of the first device includes a first configuration information, second configuration information, and third configuration information, wherein the first configuration information is used to indicate that the terminal device uses two first devices, and the two first devices The corresponding power level capabilities are PC3, the second configuration information is used to indicate that the terminal device uses two first devices, and the corresponding power level capabilities of the two first devices are PC2 and PC3 respectively, so The third configuration information is used to indicate that the terminal device uses two first devices, and the corresponding power level capabilities of the two first devices are both PC2. The method according to any one of claims 9-15, characterized in that the first information is used by the network device to determine the maximum transmit power and/or the maximum transmit power back-off value of the terminal device. A terminal device, characterized by including: A sending module, configured to send first information to the network device, where the first information is used to indicate at least one of the following parameters: The number of first devices used by the terminal equipment; Configuration information of the first device used by the terminal device; or The emission indicators that the terminal equipment can meet; Wherein, the first device includes one or more of a transmitting channel, a transmitting antenna, and a power amplifier. The terminal device according to claim 17, characterized in that the first information is used to indicate the number or configuration information of first devices used by the terminal device in a first working mode, and the first working mode includes Single stream mode and/or multi-stream mode. The terminal device according to claim 17 or 18, characterized in that the number of first devices used by the terminal device has a default value, and the first information is used to determine the number of first devices used by the terminal device. If it is not the default value, indicate to the network device the number of first devices used by the terminal device. The terminal device according to claim 19, wherein the default value of the number of first devices used by the terminal device in single-stream mode is 1. When the terminal device sends the first device to the network device, When the value of a piece of information or at least one bit carrying the first information is a preset value, the number of first devices used by the terminal device is 2; or, the number of first devices used by the terminal device in single-stream mode The default value of the number of a device is 2. When the terminal device sends the first information to the network device or the value of at least one bit carrying the first information is a preset value, the terminal device The number of said first devices used is 1. The terminal device according to claim 17 or 18, characterized in that the configuration information of the first device includes the number of the first devices used by the terminal device and the number of the first devices used by the terminal device. The corresponding power level capabilities of each device. The terminal device according to claim 21, characterized in that the power level capability of the terminal device is power level PC2, and the first information is used to indicate the power of the first device used by the terminal device in single stream mode. Configuration information, the configuration information of the first device includes first configuration information and/or second configuration information, wherein the first configuration information is used to indicate that the terminal device uses a first device, and the third The power level capability corresponding to one device is PC2, the second configuration information is used to indicate that the terminal device uses two first devices, and the power level capabilities corresponding to the two first devices are PC2 and PC3 respectively. The terminal device according to claim 21, wherein the first information is used to indicate the configuration information of a first device used by the terminal device in dual-stream mode, and the configuration information of the first device includes a first One or more of configuration information, second configuration information and third configuration information, wherein the first configuration information is used to indicate that the terminal device uses two first devices, and the two first devices The power level capabilities corresponding to the devices are all PC3. The second configuration information is used to indicate that the terminal device uses two first devices, and the power level capabilities corresponding to the two first devices are PC2 and PC3 respectively. The third configuration information is used to indicate that the terminal device uses two first devices, and the corresponding power level capabilities of the two first devices are both PC2. The terminal device according to any one of claims 17 to 23, characterized in that the first information is used by the network device to determine the maximum transmit power and/or the maximum transmit power fallback value of the terminal device. A network device, characterized by including: A receiving module, configured to receive first information sent by the terminal device, where the first information is used to indicate at least one of the following parameters: The number of first devices used by the terminal equipment; Configuration information of the first device used by the terminal device; or The emission indicators that the terminal equipment can meet; Wherein, the first device includes one or more of a transmitting channel, a transmitting antenna, and a power amplifier. The network device according to claim 25, characterized in that the first information is used to indicate the number or configuration information of the first device used by the terminal device in a first working mode, and the first working mode includes Single stream mode and/or multi-stream mode. The network device according to claim 25 or 26, characterized in that the number of first devices used by the terminal device has a default value, and the first information is used to determine the number of first devices used by the terminal device. If it is not the default value, indicate to the network device the number of first devices used by the terminal device. The network device according to claim 27, wherein the default value of the number of first devices used by the terminal device in single-stream mode is 1. When the terminal device sends the first device to the network device, When the value of a piece of information or at least one bit carrying the first information is a preset value, the number of first devices used by the terminal device is 2; or, the number of first devices used by the terminal device in single-stream mode The default value of the number of a device is 2. When the terminal device sends the first information to the network device or the value of at least one bit carrying the first information is a preset value, the terminal device The number of said first devices used is 1. The network device according to claim 25 or 26, wherein the configuration information of the first device includes the number of the first device and the corresponding power level capability of the first device. The network device according to claim 29, wherein the power level capability of the terminal device is power level PC2, and the first information is used to indicate the power of the first device used by the terminal device in single-stream mode. Configuration information, the configuration information of the first device includes first configuration information and/or second configuration information, wherein the first configuration information is used to indicate that the terminal device uses a first device, and the third The power level capability corresponding to one device is PC2, the second configuration information is used to indicate that the terminal device uses two first devices, and the power level capabilities corresponding to the two first devices are PC2 and PC3 respectively. The network device according to claim 29, wherein the first information is used to indicate configuration information of a first device used by the terminal device in dual-stream mode, and the configuration information of the first device includes a first One or more of configuration information, second configuration information and third configuration information, wherein the first configuration information is used to indicate that the terminal device uses two first devices, and the two first devices The power level capabilities corresponding to the devices are all PC3. The second configuration information is used to indicate that the terminal device uses two first devices, and the power level capabilities corresponding to the two first devices are PC2 and PC3 respectively. The third configuration information is used to indicate that the terminal device uses two first devices, and the corresponding power level capabilities of the two first devices are both PC2. The network device according to any one of claims 25-31, characterized in that the first information is used by the network device to determine the maximum transmit power and/or the maximum transmit power back-off value of the terminal device. A terminal device, characterized in that it includes a memory and a processor, the memory is used to store programs, and the processor is used to call the program in the memory to execute as described in any one of claims 1-8 Methods. A network device, characterized in that it includes a memory and a processor, the memory is used to store programs, and the processor is used to call the program in the memory to execute as described in any one of claims 9-16 Methods. A device, characterized in that it includes a processor for calling a program from a memory to execute the method according to any one of claims 1-8. A device, characterized by comprising a processor for calling a program from a memory to execute the method according to any one of claims 9-16. A chip, characterized in that it includes a processor for calling a program from a memory, so that a device installed with the chip executes the method according to any one of claims 1-8. A chip, characterized in that it includes a processor for calling a program from a memory, so that a device installed with the chip executes the method according to any one of claims 9-16. A computer-readable storage medium, characterized in that a program is stored thereon, and the program causes the computer to execute the method according to any one of claims 1-8. A computer-readable storage medium, characterized in that a program is stored thereon, and the program causes the computer to execute the method according to any one of claims 9-16. A computer program product, characterized by comprising a program that causes a computer to execute the method according to any one of claims 1-8. A computer program product, characterized by comprising a program that causes a computer to execute the method according to any one of claims 9-16. A computer program, characterized in that the computer program causes the computer to perform the method according to any one of claims 1-8. A computer program, characterized in that the computer program causes the computer to perform the method according to any one of claims 9-16.