CN115499906A

CN115499906A - Method and device for determining maximum output power

Info

Publication number: CN115499906A
Application number: CN202110898704.5A
Authority: CN
Inventors: 王洲; 薛丽霞; 张春华; 佟有万
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-06-19
Filing date: 2021-08-05
Publication date: 2022-12-20
Also published as: WO2022262483A1

Abstract

The embodiment of the application provides a method and a device for determining maximum output power, wherein the method comprises the following steps: determining indication information, wherein the indication information is used for indicating the transmitting power capability of a terminal, the transmitting power capability is related to the maximum transmitting power respectively supported by a plurality of transmitting radio frequency links of the terminal, and the transmitting power capability is used for determining the maximum output power of the terminal; and sending the indication information to the network equipment. Based on the technical scheme, the terminal indicates the transmitting power capability related to the maximum transmitting power respectively supported by the plurality of transmitting radio frequency links to the network equipment, so that the maximum output power calculated by the network equipment is more accurate, and the network equipment is more reasonable in transmitting power scheduling based on the maximum output power of the terminal.

Description

Method and device for determining maximum output power

The present application claims priority of chinese patent application entitled "a power class definition method" filed by the chinese patent office on 19/6/2021, application number 202110681693.5, which is incorporated herein by reference in its entirety.

Technical Field

The present application relates to the field of communications, and more particularly, to a method and apparatus for determining maximum output power.

Background

In order to improve the uplink coverage of the network, high Power User Equipment (HPUE), also called high power terminal, is more and more common, and a corresponding terminal with multiple transmitting radio frequency links is more and more common.

In the prior art, a Power Class (PC) is introduced for calculating the maximum output power of the terminal, but the power class corresponding to the combination of a plurality of transmission powers in the prior art cannot accurately reflect the true power classes of the plurality of transmission powers, and is only an approximate value. For a terminal with multiple transmitting radio frequency links, since the terminal has multiple transmitting radio frequency links, each transmitting radio frequency link corresponds to one transmitting power, that is, the terminal with multiple transmitting radio frequency links has multiple transmitting powers, the base station can calculate the maximum output power of the terminal according to the existing power level corresponding to the combination of the multiple transmitting powers, and then perform transmitting power scheduling based on the maximum output power of the terminal. Therefore, in the above procedure, since the existing power class corresponding to the combination of the plurality of transmission powers is an approximate value, the maximum output power of the terminal cannot be accurately reflected, and the transmission power scheduling based on the maximum output power of the terminal is not reasonable.

Disclosure of Invention

The embodiment of the application provides a method and a device for determining the maximum output power, so as to accurately determine the maximum output power of a terminal, and reasonably schedule transmission power based on the maximum output power.

In a first aspect, a method for determining maximum output power is provided, the method including: determining indication information, wherein the indication information is used for indicating a transmission power capability of a terminal, the transmission power capability is related to maximum transmission power respectively supported by a plurality of transmission radio frequency links of the terminal, and the transmission power capability is used for determining the maximum output power of the terminal; and sending the indication information to the network equipment.

Based on the technical scheme, the terminal indicates the transmitting power capability related to the maximum transmitting power respectively supported by the plurality of transmitting radio frequency links to the network equipment, so that the maximum output power calculated by the network equipment is more accurate, and the network equipment is more reasonable in transmitting power scheduling based on the maximum output power of the terminal.

In a second aspect, a method for determining a maximum output power is provided, the method comprising: receiving indication information from a terminal, wherein the indication information is used for indicating a transmission power capability of the terminal, the transmission power capability is related to maximum transmission power respectively supported by a plurality of transmission radio frequency links of the terminal, and the transmission power capability is used for determining the maximum output power of the terminal; and determining the maximum output power according to the indication information.

With reference to the first aspect or the second aspect, in some possible implementations, the indication information is specifically used to indicate maximum transmit powers supported by the multiple transmit radio frequency links, respectively.

By indicating the maximum transmission power supported by each of the plurality of transmission radio frequency links, the network device can obtain the maximum output power of the terminal according to the maximum transmission power.

The following illustrates several possible forms of indication of the maximum transmit power supported by each of the plurality of transmit radio frequency chains.

Optionally, the indication information includes maximum transmit power values supported by the multiple transmit links, respectively.

Optionally, the indication information includes power levels respectively corresponding to maximum transmission power values respectively supported by the plurality of transmission links, and each maximum transmission power value corresponds to one power level.

Optionally, the indication information includes a first identifier and a number N of the multiple transmitting rf links, where the first identifier belongs to multiple identifiers, each identifier in the multiple identifiers and the number of the transmitting rf links are used to jointly indicate one combination in multiple combinations, where each combination in the multiple combinations includes multiple maximum transmission power values, the first identifier and the number N indicate a first combination, and the multiple combinations include the first combination, where the first combination includes maximum transmission power values supported by the multiple transmitting rf links respectively.

That is, the maximum transmission power supported by each of the plurality of transmission rf chains is associated with the identifier as a combination. Since the number of the transmitting radio frequency links of different terminals may be different, different mapping relationships may be defined for the different number of the transmitting radio frequency links, so that one of the combinations may be indicated by means of the joint indication of the identification and the number. In other words, the mapping includes identifying a correspondence of a plurality of combinations of the number of transmit radio frequency links to a plurality of combinations of transmit power.

Optionally, the indication information includes a second identifier, the second identifier belongs to a plurality of identifiers, each identifier in the plurality of identifiers is used to jointly indicate one combination in a plurality of combinations, each combination in the plurality of combinations includes a plurality of maximum transmission power values, the second identifier indicates a first combination, the plurality of combinations includes the first combination, and the first combination includes maximum transmission power values respectively supported by the plurality of transmission radio frequency links.

It will be appreciated that this approach differs from the above indicating first designation in that: the mapping relation table corresponding to the second identifier may reflect the mapping relations corresponding to two, three, and more than three transmitting rf links at the same time, while the mapping relation table corresponding to the first identifier only reflects the mapping relations corresponding to two, three, or more than three transmitting rf links.

Based on the above-listed possible forms of the indication of the maximum transmission power supported by each of the plurality of transmission rf chains, the network device may determine the maximum transmission power supported by each of the plurality of transmission rf chains of the terminal.

Further, in the maximum transmission power values respectively supported by the multiple transmission radio frequency links, the transmission radio frequency link corresponding to the first maximum transmission power value is a primary link, and the transmission radio frequency links corresponding to the other maximum transmission power values are secondary links.

Under the condition that a plurality of different terminals with the same maximum transmitting power exist, the different terminals can be distinguished by distinguishing the main link and the auxiliary link, so that the reasonable scheduling of the network equipment is facilitated.

With reference to the first aspect or the second aspect, in some possible implementations, the indication information is specifically configured to indicate a power level of the terminal, where a relationship between the power level and a maximum transmission power of the multiple transmission radio frequency links satisfies:

wherein L represents the power level, P _n Represents the maximum transmission power, P, of the nth of the N transmission RF chains _n More than 0, L more than 0, N more than or equal to 1 and less than or equal to N, N more than 1, N and N are integers.

By indicating the power level of the terminal without indicating the maximum transmission power supported by each of the plurality of transmission radio frequency links of the terminal, the indication overhead can be reduced, and meanwhile, the network device can conveniently determine the maximum transmission power of the terminal.

Optionally, the indication information includes a third identifier and the number N of transmission radio frequency links of the terminal, where the third identifier belongs to multiple identifiers, each identifier and the number of transmission power links in the multiple identifiers are used to jointly indicate one power class in multiple power classes, and the third identifier and the number N indicate the power class of the terminal, where the multiple power classes include the power class of the terminal.

I.e. associating the power class of the terminal with the identity. Since the number of the transmitting radio frequency links of different terminals may be different, different mapping relationships may be defined for the different number of the transmitting radio frequency links, so that one of the power levels may be indicated by means of joint indication of the identifier and the number. In other words, the mapping includes identifying a correspondence of various combinations of the number of transmit radio frequency links to various power levels.

Optionally, the indication information includes a fourth identifier, where the fourth identifier belongs to multiple identifiers, each identifier in the multiple identifiers is used to indicate one power class in multiple power classes, and the fourth identifier indicates the power class of the terminal, where the multiple power classes include the power class of the terminal.

It will be appreciated that this approach differs from the above indicating the third indicia in that: the mapping relation table corresponding to the fourth identifier may reflect the mapping relations corresponding to two, three, and more than three transmitting rf links at the same time, while the mapping relation table corresponding to the third identifier only reflects the mapping relations corresponding to two, three, or more than three transmitting rf links.

With reference to the first aspect or the second aspect, in some possible implementations, the indication information is further used to indicate a transmission mode applicable to one or more of the plurality of transmission radio frequency links.

By indicating the transmission mode, the network equipment knows the maximum transmission power of the transmission radio frequency link corresponding to different transmission modes of the terminal, so that the network equipment can conveniently and reasonably schedule the terminal in different transmission modes.

Further, the indication information is also used for indicating a frequency band (band) or a frequency band combination (band combination) used in the transmission mode.

By indicating the frequency band or combination of frequency bands used in the transmission mode, the network device is made aware of the frequency bands or combinations of frequency bands supported in the different transmission modes of the terminal.

In a third aspect, the present application provides an apparatus for determining a maximum output power, which includes means or units for implementing the method in the first aspect, the second aspect, or any one of the possible implementations of the first aspect and the second aspect. It should be understood that the respective modules or units may implement the respective functions by executing the computer program.

In a fourth aspect, the present application provides an apparatus for determining a maximum output power, including a processor, where the processor is configured to execute the method for determining a maximum output power described in the first aspect, the second aspect, or any one of the possible implementations of the first aspect and the second aspect.

The apparatus may also include a memory to store instructions and data. The memory is coupled to the processor, and the processor, when executing instructions stored in the memory, may implement the methods described in the aspects above. The apparatus may also include a communication interface for the apparatus to communicate with other devices, which may be, for example, a transceiver, circuit, bus, module, or other type of communication interface.

In a fifth aspect, the present application provides a chip system comprising at least one processor configured to support the implementation of the functions referred to in the first aspect, the second aspect, or any possible implementation manner of the first aspect and the second aspect, for example, to receive or process data and/or information referred to in the method.

In one possible design, the system-on-chip further includes a memory to hold program instructions and data, the memory being located within the processor or external to the processor.

The chip system may be formed by a chip, and may also include a chip and other discrete devices.

In a sixth aspect, the present application provides a computer-readable storage medium comprising a computer program which, when run on a computer, causes the computer to implement the method of the first aspect, the second aspect, or any possible implementation of the first and second aspects.

In a seventh aspect, the present application provides a computer program product comprising: a computer program (which may also be referred to as code, or instructions), which when executed, causes a computer to perform the method of the first aspect, the second aspect, or any possible implementation of the first and second aspects.

It should be understood that the third to seventh aspects of the present application correspond to the technical solutions of the first and second aspects of the present application, and the advantageous effects obtained by the various aspects and the corresponding possible implementations are similar and will not be described again.

Drawings

Fig. 1 is a schematic diagram of a communication system architecture according to an embodiment of the present application;

fig. 2 is a schematic flowchart of a method for determining maximum output power according to an embodiment of the present application;

fig. 3 is a schematic block diagram of a maximum output power determining apparatus provided in an embodiment of the present application;

fig. 4 is another schematic block diagram of a maximum output power determining apparatus provided in an embodiment of the present application;

fig. 5 is a schematic block diagram of another maximum output power determining apparatus provided in an embodiment of the present application;

fig. 6 is another schematic block diagram of another apparatus for determining maximum output power provided by an embodiment of the present application.

Detailed Description

For ease of understanding, reference will first be made to terms related to embodiments of the present application.

Power Class (PC) of terminal: the terminal can report the power level of the terminal and indicate the default maximum output power of the terminal. For convenience of description, hereinafter, the power level of the terminal is sometimes denoted by a parameter L.

In the present embodiment, different PCs are represented by different values X, where X is a positive integer. Note that PCX refers to a corresponding single Power Amplifier (PA) capability, that is, one power class represents only a power class corresponding to a maximum transmission power value supported by one transmission link, but cannot represent a power class corresponding to a combination of maximum transmission power values supported by multiple transmission links. This will be described in detail with reference to specific examples.

Multiple transmit radio frequency chains: in the embodiment of the present application, a terminal may have a plurality of transmitting rf chains, and each of the plurality of transmitting rf chains corresponds to a maximum transmitting power. The power level L of the terminal can be calculated according to the maximum transmission power supported by each of the plurality of transmission radio frequency links. Each transmitting radio frequency link in the plurality of transmitting radio frequency links corresponds to a Power Amplifier (PA), and each transmitting radio frequency link corresponds to a power level of a carrier.

Maximum output power (P) of terminal _CMAX,f,c ): refers to the actual maximum output power (P) of the terminal _CMAX,f,c ). Maximum output power P of terminal _CMAX,f,c May be determined based on equation 1 and the power level L of the terminal:

P _{CMAX_L,f,c} ≤P _CMAX,f,c ≤P _{CMAX_H,f,c} \8230; \ 8230; \ 8230; '8230; \8230; \ 8230;' equation 1

P _{CMAX_L,f,c} ＝MIN{P _EMAX,c -ΔT _C,c ,(L-ΔL)-MAX(MAX(MPR _c +ΔMPR _c ,A-MPR _c )+ΔT _IB,c +ΔT _C,c +ΔT _RxSRS,c ,P-MPR _c )}

P _{CMAX_L,f,c} ＝MIN{P _EMAX,c -ΔT _C,c L- Δ L, since the definitions of the parameters other than L in the embodiments of the present application are the same as those of the prior art, the meaning of each parameter is not specifically described herein.

Carrier Aggregation (CA): 2 or more carrier elements are aggregated together to support a larger transmission bandwidth.

Super uplink/Supplemental Uplink (SUL): and the supplementary uplink is used for improving the uplink coverage of the terminal.

Double-linking (DC): the terminal maintains a connection with both network devices simultaneously.

It should be understood that the above-mentioned CA, SUL and DC are all several possible transmission modes under Uu transmission. Uu transmission specifically refers to universal (U) transmission between user to network interfaces (U), that is, transmission of an air interface.

Vehicle to aircraft (V2X): is a key technology of the future intelligent transportation system. It enables communication between cars, between cars and base stations, and between base stations.

For the understanding of the embodiments of the present application, a communication system applicable to the embodiments of the present application will be described in detail with reference to fig. 1. Fig. 1 is a schematic diagram of a communication system suitable for the method and apparatus for determining maximum output power according to the embodiment of the present application. As shown in fig. 1, the communication system 100 may include at least one network device, such as the network device 110 shown in fig. 1; the communication system 100 may also include at least one terminal, such as the terminal 120 shown in fig. 1. Network device 110 and terminal 120 may communicate via a wireless link. In this embodiment, the terminal 120 may send the indication information to the network device 110, and after the network device 110 receives the indication information, the maximum output power corresponding to the terminal may be calculated according to the indication information, and the transmission power scheduling may be performed according to the maximum output power.

It should be understood that the network device in the wireless communication system may be any device having a wireless transceiving function. Such devices include, but are not limited to: an evolved node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a base transceiver station (base transceiver station, BTS), a home base station (e.g., home evolved node B, or home node B, HNB), a Base Band Unit (BBU), an Access Point (AP), a wireless relay node, a wireless backhaul node, a Transmission Point (TP), or a transmission point (BBU) in a wireless fidelity (WIFI) system, etc., and may also be 5G, such as a new wireless radio (new) node, NR), an NB in the system, or a Transmission Point (TP), a group or a group of antennas in the 5G system, or may also be a distributed antenna panel (RNC), or a distributed antenna panel (distribution panel) such as a distributed antenna panel (distribution panel).

In some deployments, the gNB may include Centralized Units (CUs) and DUs. The gNB may also include a Radio Unit (RU). A CU implements part of the function of a gNB, and a DU implements part of the function of the gNB, for example, the CU implements the function of a Radio Resource Control (RRC) layer, a Packet Data Convergence Protocol (PDCP) layer, and the DU implements the function of a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a Physical (PHY) layer. Since the information of the RRC layer eventually becomes or is converted from the information of the PHY layer, the higher layer signaling, such as the RRC layer signaling, may also be considered to be transmitted by the DU or the DU + CU under this architecture. It will be understood that the network device may be a CU node, or a DU node, or a device comprising a CU node and a DU node. In addition, the CU may be divided into network devices in an access network (RAN), or may be divided into network devices in a Core Network (CN), which is not limited in this application.

It should also be understood that a terminal in the wireless communication system may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal in the embodiment of the application may be a mobile phone (mobile phone), a tablet (pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal, an Augmented Reality (AR) terminal, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), and the like. The terminal may have multiple transmit radio frequency chains.

In order to improve the uplink coverage of the network, high-power terminals are becoming more and more popular, and corresponding terminals with multiple transmitting rf links are becoming more and more popular.

However, the power level corresponding to the combination of the plurality of transmission powers in the prior art cannot accurately reflect the true power levels of the plurality of transmission powers, and is only an approximate value. For ease of understanding, table 1 is illustrative of various combinations of two maximum transmit powers for two transmit rf chains, as shown in tables 1 and 2. The power levels of NR Carrier x (NR Carrier x power class) and NR Carrier y (NR Carrier y power class) in table 1 are maximum transmission powers corresponding to two transmission rf links, respectively. Table 2 shows various combinations of two maximum transmission powers for three transmission rf links, where the power levels of NR Carrier x power class, NR Carrier y power class, and NR Carrier z (NR Carrier z power class) in table 2 are the maximum transmission powers corresponding to the three transmission links respectively. The UE power class in table 1 and table 2 each indicates the power class of the terminal. The identification may be an index (index), such as 1 to 4 in table 1, 1 to 8 in table 2; the other cases are also possible, such as cases (case) a to case d in table 1, and cases a to case h in table 2. The specific form of identification is not limited in this application.

TABLE 1

index/case	UE power class	NR Carrier x power class	NR Carrier y power class
				1/case a	26dBm	23dBm	23dBm
2/case b	26dBm	23dBm	26dBm
				3/case c	26dBm	26dBm	23dBm
4/case d	26dBm	26dBm	26dBm

Wherein, decibel relative to one milliwatt (dBm) is an absolute value indicating power. Any power P and dBm in milliwatts (mW) satisfy equations 2 and3, and the power P in milliwatts (mW) can be converted to a power value x in dBm by equation 2, and similarly, the power value x in dBm can be converted to a corresponding power P in milliwatts (mW) by equation 3.

x＝10log ₁₀ (P/(1 mW)) \\8230; \8230; \82308230; '8230;' formula 2

P＝(1mW)10 ^(x/10) \8230; 8230; \8230; \ 8230and formula 3

As can be seen from table 1, two maximum transmission powers of two transmission radio frequency links may obtain 2 × 2=4 combinations, and the 4 combinations all correspond to the same power level value, while different combinations of the maximum transmission powers corresponding to the two transmission radio frequency links should have different power level values, which also reflects from the side that the power level value of the terminal in table 1 cannot accurately reflect the maximum output power of the terminal, so that the network device may not calculate the maximum output power of the terminal accurately.

TABLE 2

Similar to table 1, as can be seen from table 2, two maximum transmission powers of three transmission radio frequency links may obtain 2 × 2=8 combinations, and the combinations labeled 2-7 in the 8 combinations all correspond to the same power level value, and different combinations of the maximum transmission powers corresponding to the three transmission radio frequency links should have different power level values, which also reflects from the side that the power level value of the terminal in table 2 cannot accurately reflect the maximum output power of the terminal, so that the network device cannot accurately calculate the maximum output power of the terminal.

The technical solution in the present application will be described below with reference to the accompanying drawings.

Fig. 2 is a schematic flow chart diagram of a method 200 for determining maximum output power, shown from the perspective of terminal and network device interaction. As shown in fig. 2, the method 200 shown in fig. 2 may include steps 210 to 230.

In step 210, the terminal determines indication information.

The indication information is used for indicating the transmission power capability of the terminal, the transmission power capability is related to the maximum transmission power respectively supported by a plurality of transmission radio frequency links of the terminal, and the transmission power capability is used for determining the maximum output power of the terminal.

Illustratively, the indication information may indicate the transmit power capability of the terminal through the following two implementations.

The first possible implementation manner is: the indication information may be used to indicate maximum transmission powers respectively supported by multiple transmission radio frequency links of a terminal, and there are three possible designs for this implementation, which are specifically described below.

One possible design is: the indication information includes maximum transmission power values respectively supported by a plurality of transmission links of a terminal. For example, if the maximum power values of two transmitting rf links of a terminal are 23dBm and 26dBm, respectively, they may be reported to the network device in a combined form [23, 26 ]. For another example, if a terminal has three maximum power values of 23dBm, and 26dBm, respectively, they may be reported to the network device in a combined form [23, 23, 26 ]. It should be understood that, here, only when one terminal has two or three transmitting radio frequency links, the corresponding indication information content is taken as an example for description, and one terminal may also have more than three transmitting radio frequency links, and the indication information content is similar to the above example and is not described herein again.

Another possible design is: the indication information includes power levels respectively corresponding to maximum transmission power values respectively supported by a plurality of transmission links of a terminal, and each maximum transmission power value respectively corresponds to one power level. For example, the maximum power values of two transmitting radio frequency links of one terminal are 23dBm and 26dBm, respectively, and the power levels corresponding to the two maximum power values are PC3 and PC2, respectively, so that the power levels corresponding to the maximum transmitting power values supported by the two transmitting links, respectively, can be reported to the network device in a combined form [ PC3, PC2 ]. For another example, if one terminal has three maximum power values of 23dBm, and 26dBm, and the power levels corresponding to the three maximum power values are PC3, and PC2, respectively, the power levels corresponding to the maximum transmit power values supported by the three transmit links, respectively, can be reported to the network device in a combined form [ PC3, and PC2 ].

As previously mentioned, PCX refers to the corresponding single PA capability, i.e. one power class represents only the power class corresponding to the maximum transmit power value supported by one transmit link, but cannot represent the power class corresponding to the combination of the maximum transmit power values supported by multiple transmit links. For example, PC2 represents only a power level corresponding to the maximum transmit power value supported by one transmit link of 26dBm, but cannot represent a power level corresponding to the combination of the maximum transmit power values supported by two transmit links of 23+ 23dbm.

It should be understood that, here, only by taking an example that one terminal has two or three transmitting radio frequency links, corresponding indication information content is described, and one terminal may also have more than three transmitting radio frequency links, where the indication information content is similar to the above example and is not described herein again.

Yet another possible design is: the indication information includes the first identifier and the number N of the plurality of transmitting rf chains of the terminal.

The first identifier belongs to a plurality of identifiers, each identifier in the plurality of identifiers and the number of the transmitting radio frequency links are used for jointly indicating one of a plurality of combinations, each combination in the plurality of combinations comprises a plurality of maximum transmitting power values, the first identifier and the number N indicate a first combination, the plurality of combinations comprise the first combination, and the first combination comprises the maximum transmitting power values respectively supported by the plurality of transmitting radio frequency links of the terminal.

In this design, the indication information is determined based on the mapping relationship. In particular, the mapping may include identifying a correspondence of a plurality of combinations of number of transmit radio frequency links and a plurality of combinations of transmit power. Since the number of transmit rf links may be different for different terminals, different mapping relationships may be defined for different numbers of transmit rf links. Tables 3 and 4 show an example of mapping relationships corresponding to 2 transmit rf chains and3 transmit rf chains.

TABLE 3

It can be understood that the NR Carrier x power class and NR Carrier y power class in table 3 are the maximum transmission powers corresponding to the two transmission links respectively. Table 3 shows four possible combinations of maximum transmit powers 23dBm or 26dBm supported by two transmit rf chains, respectively, corresponding to 4 different identifiers, for example, 4 different indices: 1. 2, 3, 4, or four different cases: case a, case b, case c, case d, or an index and case combination, such as index 1 and case a combination, index 2 and case b combination, index 3 and case c combination, and index 4 and case d combination.

It should be noted that, the case a, the case b, the case c, and the case d may not only correspond to the index, but also represent multiple implementation types, that is, multiple implementation types corresponding to the uplink transmission radio frequency link channel supported by the terminal. Therefore, indexes 1, 2, 3, and 4 may respectively correspond to case a, case b, case c, and case d, and different indexes may also be regarded as indication codes corresponding to different implementation types. For convenience of description, the first identifier, the second identifier, the third identifier, and the fourth identifier in this embodiment may all represent an index, a case, or a combination of the index and the case in different mapping relationships. For the sake of brevity, a description of the same or similar cases is omitted hereinafter.

It should be understood that table 3 is only an example and should not be construed as limiting the embodiments of the present application. It should also be understood that the maximum transmit powers supported by the two transmit rf chains shown in table 3 are 23dBm and 26dBm, respectively, which are only examples, and the maximum transmit powers may also be other values, such as 29dBm, 31dBm, etc., and the embodiments of the present application do not limit this.

TABLE 4

Identification	NR Carrier x power class	NR Carrier y power class	NR Carrier z power class
				1/case a	23dBm	23dBm	23dBm
2/case b	26dBm	23dBm	23dBm
				3/case c	23dBm	26dBm	23dBm
4/case d	23dBm	23dBm	26dBm
				5/case e	26dBm	26dBm	23dBm
6/case f	23dBm	26dBm	26dBm
				7/case g	26dBm	23dBm	26dBm
8/case h	26dBm	26dBm	26dBm

It can be understood that the NR Carrier x power class, NR Carrier y power class, and NR Carrier zpower class in table 4 are the maximum transmission powers respectively corresponding to the three transmission links. Table 4 shows eight possible combinations of maximum transmit powers 23dBm or 26dBm supported by the three transmit rf chains, respectively, corresponding to 8 different identifiers, such as 8 different indices: 1. 2, 3, 4, 5, 6, 7, 8, or 8 different cases: case a, case b, case c, case d, case f, case g, case h. For specific meanings of cases, reference may be made to the above description, and for brevity, the details are not repeated herein. It should be understood that table 4 is only an example and should not be construed as limiting the embodiments of the present application. It should also be understood that the maximum transmit powers 23dBm and 26dBm supported by the two transmit rf links shown in table 4 are only examples, and the maximum transmit power supported by each transmit rf link is not limited in the embodiments of the present application.

In the mapping relationships included in tables 3 and 4, each mapping relationship includes a combination and its corresponding identifier. The mapping relationships in tables 3 and 4 may be predefined, such as predefined protocols, or pre-stored in the network device and the terminal, or pre-negotiated with the terminal by the network device, which is not limited. Therefore, the terminal may determine, based on the mapping relationship, indication information, where the indication information may include an identifier (a first identifier) of a combination (i.e., a first combination) corresponding to a maximum transmission power value supported by each of the multiple transmission radio frequency links corresponding to the terminal, and the number N of the multiple transmission radio frequency links corresponding to the terminal. In this way, the network device may obtain, based on the indication information (the first identifier and the number N of the transmission radio frequency links) reported by the terminal, the maximum transmission power values respectively supported by the multiple transmission radio frequency links of the terminal according to the mapping relationship, and further obtain the maximum output power of the terminal.

Illustratively, when the number of the plurality of transmitting radio frequency links included in the terminal is 3, and the maximum transmitting powers corresponding to three transmitting radio frequency links are 23dBm, and 23dBm, respectively, the first identifier is identifier 1 (or case a) based on the mapping relationship of table 4. Furthermore, the terminal may determine that N in the indication information is 3, that is, the number of the multiple transmitting radio frequency links included in the terminal is 3, and the first identifier included in the indication information is identifier 1 (or case a), the form of the corresponding indication information may be [3,1] or [3, case a ], and the network device may find, according to the indication information and based on the mapping relationship in table 4, that the maximum transmitting power values respectively supported by the multiple transmitting radio frequency links corresponding to the terminal are 23dBm, and 23dBm, respectively. Then, the three values are substituted into the following formula 4 to obtain the power level L of the terminal, and then the maximum output power of the terminal is obtained based on the power level L of the terminal and the above formula 1.

It should be understood that table 3 and table 4 are only an example, and in another possible design, combinations of maximum transmission powers with different numbers of transmission rf links may be combined into a mapping relationship, where each combination of maximum transmission powers supported by multiple transmission rf links corresponds to an identifier (second identifier). For example, tables 3 and 4 may be merged into one table, and the corresponding identifier for each combination in the table may be redefined. So that a combination is indicated directly by one identity (the second identity). At this time, the second identifier may be included in the indication information.

Optionally, in the multiple possible designs, among the maximum transmission power values respectively supported by the multiple transmission radio frequency links, the transmission radio frequency link corresponding to the first maximum transmission power value is a primary link, and the transmission radio frequency links corresponding to the other maximum transmission power values are secondary links. For example, 23 in the combination [23, 26] is the corresponding maximum transmit power value of the primary link, and 26 is the corresponding maximum transmit power value of the secondary link. The combination [26, 23] has 26 being the corresponding maximum transmit power value for the primary link and 23 being the corresponding maximum transmit power value for the secondary link. The first 23 of the combinations [23, 23, 26] is the corresponding maximum transmit power value of the primary link, and the second 23, 26 is the corresponding maximum transmit power value of the secondary link. The first 26 of the combinations [26, 23, 23] is the corresponding maximum transmit power value for the primary link, and 23, 23 is the corresponding maximum transmit power value for the secondary link. For another example, the combinations corresponding to case b and case c in table 3 are [23, 26], [26, 23], respectively, and the maximum transmission power values of the primary and secondary links corresponding to the two combinations are different, and for brevity, are not described herein again.

Because the maximum transmitting power values respectively supported by the main link and the auxiliary link corresponding to different terminals are different, the network device allocates different uplink access resources to the different terminals, the gains obtained by the terminals are also different, and the energy consumption of the corresponding network devices is also different.

Illustratively, for a terminal with two transmitting rf chains, the corresponding maximum transmit power value of the primary link of one terminal is 26, and the corresponding maximum transmit power value of the secondary link is 23, i.e. corresponding to the combination [26, 23], more specifically, in the CA transmission mode, this case may be denoted as CA: case1 26NR1+23NR2; in the E-UTRAN-new radio-dual connectivity (endec) transmission mode, this case may be denoted as endec: case1 26 LTE +23 NR; the corresponding maximum transmission power value of the primary link of the other terminal is 23, and the corresponding maximum transmission power value of the secondary link is 26, i.e. corresponding to the combination [23, 26], more specifically, in the CA transmission mode, this case may be denoted as CA: case2 23 NR1+26 NR2; in the ENDC transmission mode, this case can be written as ENDC: case2 23 LTE +26 NR.

For ease of understanding, the above-described case1 and case2 are analyzed below for the CA transmission mode and the endec transmission mode, respectively. In the CA transmission mode, the uplink coverage (primary cell uplink signal range) of case1 is different from that of case2, and the uplink coverage 1 of case is greater than that of case2, and the latter has a coverage gain of 3dB over the former. Therefore, the allocation of uplink access resources to each terminal by the network device is further affected. On the one hand, the case1 terminal at the same location, especially an edge user, is easier to seize access resources because the upper limit of the uplink signal of the main cell is higher, so the network device needs to allocate different uplink access resources to the case1 and case2 terminals, such as Physical Random Access Channel (PRACH) -configuration (config) 1 and PRACH-config2, to avoid the case1 terminal seizing the case2 terminal for access. Because the access process of the CA/DC is to establish the primary cell for access first and then to increase the secondary cell, the carrier of the primary cell with higher power has larger gain when being accessed. On the other hand, in the endec transmission mode, the case1 terminal power consumption is higher than the case2. Due to the implementation of the NR waveform, the NR energy consumption is higher in the same high-power working state. For example, for LTE, the PA power is about 27-28dbm when a Total Radiated Power (TRP) of 26dbm is transmitted, and for NR, the PA power is about 30-31dbm.

It should also be understood that by the above technical solution, not only the multiple cases of the terminal with two transmitting rf chains can be distinguished, but also the multiple cases of the terminals with three or more transmitting rf chains can be distinguished. For example, 8 combinations corresponding to 3 transmitting radio frequency links in the CA transmission mode can be distinguished, and the 8 combinations are respectively: case1 23 NR1+23 NR2+23 NR3, case2 23 NR1+26 NR2+23 NR3, case3 26NR1+23 NR2+23 NR3, case4 23 NR1+23 NR2+26 NR3, case5 NR1+26 NR2+23 NR3, case6 NR1+23 NR2+26 NR3, case7 NR1+26 NR2+26 NR3, case8 NR1+26 NR2. For another example, 8 combinations corresponding to 3 transmitting radio frequency links in the endec transmission mode can be distinguished, and the 8 combinations are respectively: case1, 23 LTE, 23, NR1, 23, NR2, case2, 23, LTE, 26, NR1, 23, NR2, casee 3, 26, LTE, 23, NR1, 23, NR2, casee 4, LTE, 23, NR1, 26, NR2, casee 5, LTE, 26, NR1, NR2, casee 6, LTE, 23, NR1, 26, NR2, casee 8, LTE, 26, NR1, NR2, 26, NR1, 26, NR2, 26, and NR1. For the sake of brevity, this is not listed here. Therefore, by the method, all transmission power matching conditions required by the multi-transmission radio frequency link terminal can be covered, so that flexible uplink high-power transmission is allowed to the maximum extent.

By the method, the network equipment can know the actual maximum uplink power of the terminal so as to carry out scheduling according to the upper power limit.

A second possible implementation is: the indication information may specifically be used to indicate a power level of the terminal, where a relationship between the power level of the terminal and the maximum transmission power of the multiple transmission radio frequency links satisfies:

wherein L represents the power level of the terminal, P _n Represents the maximum transmission power, P, of the nth of the N transmission RF chains _n More than 0, L more than 0, N more than or equal to 1 and less than or equal to N, N more than 1, N and N are integers.

In this case, the indication information includes a third identifier corresponding to the power class of the terminal and the number N of the transmitting rf links of the terminal. The third identifier belongs to a plurality of identifiers, each identifier in the plurality of identifiers and the number of transmission power links are used for jointly indicating one power class in a plurality of power classes, the third identifier and the number N indicate the power class of the terminal, and the plurality of power classes include the power class of the terminal.

For convenience of understanding, the above scheme is described below with reference to tables 5 and 6, where tables 5 and 6 may correspond to tables 3 and 4, respectively, and are increased by the power class of the corresponding terminal compared to tables 3 and 4, that is, by UE power class in tables 5 and 6, that is, L in equation 2 above. The UE power class in table 5 is calculated by the maximum transmit power NR Carrier x power class and NR Carrier y power class corresponding to the two transmit chains, respectively, and the UE power class in table 6 is calculated by the maximum transmit power NR Carrier x power class, NR Carrier y power class, and NR Carrier z power class corresponding to the three transmit chains, respectively. The identifications in tables 5 and 6 are mainly used to identify the UE power class.

Alternatively, the mapping relationships like those in tables 5 and 6 may be predefined, such as protocol predefined, or pre-stored in the network device and the terminal, or pre-negotiated with the terminal by the network device, without limitation. Therefore, the indication information determined by the terminal may include the third identifier and the number N of the transmitting radio frequency links of the terminal, so that the network device may obtain the power level of the terminal based on the indication information (the third identifier and the number N of the transmitting radio frequency links) reported by the terminal according to the mapping relationship, and further directly obtain the maximum output power of the terminal.

TABLE 5

It should be understood that table 5 functions similarly to table 1, but it can be seen that of the 4 combinations of maximum transmit powers for the two transmit rf chains shown in table 5, each combination corresponds to a precise power level of the terminal.

TABLE 6

It should be understood that table 6 functions similarly to table 2, but it can be seen that each of the 8 combinations of maximum transmit power for the three transmit rf chains shown in table 6 corresponds to a respective exact power level value for the terminal.

For example, when N in the indication information is 2, that is, the number of the plurality of transmitting rf links included in the terminal is 2, and the third identifier included in the indication information is identifier 1 (or case a), the corresponding indication information may be [2,1] or [2, case a ], and the network device may find, according to the indication information, the power level value of the corresponding terminal to be 26.01dBm based on the mapping relationship in table 5, and then may obtain the maximum output power of the terminal based on the power level of the terminal being 26.01dBm and the above formula 1.

It should be understood that tables 5 and 6 are only an example, and in another possible design, combinations of maximum transmission powers with different numbers of transmission rf links may be combined into a mapping relationship, where each combination of maximum transmission powers supported by multiple transmission rf links corresponds to an identifier (fourth identifier). For example, tables 5 and 6 may be merged into one table, and the corresponding identification for each combination in the table may be redefined. So that a combination is indicated directly by an identity (fourth identity). At this time, the fourth flag may be included in the indication information.

It should be understood that, in the mapping relationship described in connection with tables 5 and 6, reference may be made to the above description for specific meaning of case, and details are not described here for brevity.

Optionally, for the above methods, the indication information may also be used to indicate a transmission mode applicable to one or more of the multiple transmitting rf chains.

The transmission mode may be, for example, CA, SUL, DC, V2X, etc., and in combination with the above method, the indication information may be, for example, [26, 23; CA, SUL, DC ], indicates that the terminal may have two transmitting rf links in three transmission modes of CA, SUL, DC, and the power level values of carriers of the two transmitting rf links are 26dBm and 23dBm, respectively. The indication information may also be, for example, [23, 26; CA, DC;23 23, 23; SUL ], which indicates that the terminal can have two transmitting radio frequency links in three transmission modes of CA, SUL and DC, wherein the power level values of the carriers of the two transmitting radio frequency links in the two transmission modes of CA and DC are respectively 26dBm and 23dBm, and the power level values of the carriers of the two transmitting radio frequency links in the SUL transmission mode are respectively 23dBm and 23dBm. Further, the indication information may also be [ CA, SUL, DC;2,case a ] indicates that the terminal can have 2 transmitting radio frequency links in three transmission modes of CA, SUL and DC, and the corresponding combination is marked as case a. As another example, the indication information may also be [ CA, SUL, DC; case a ], where the identifier of the corresponding combination of the terminal in the three transmission modes of CA, SUL, and DC is case a.

Further optionally, for the above methods, the indication information may be used to indicate, in addition to the transmission mode applicable to one or more of the plurality of transmission radio frequency links, a frequency band or a combination of frequency bands used in the transmission mode applicable to one or more of the plurality of transmission radio frequency links.

One possible scenario is: in one or more of the CA, SUL, DC transmission modes suitable for Uu transmission, a partial band and band combination is effective. Another possible scenario is: in one or more of the CA, SUL, DC transmission modes suitable for Uu transmission, the full band and band combination is effective. In connection with the above method, the indication information may be, for example, [26, 23; CA (Band 1), SUL (Band 2), DC (Band 3) ], which indicates that the terminal has two transmitting rf links corresponding to three transmission modes of CA, SUL, and DC, the power level values of carriers of the two transmitting rf links are respectively 26dBm and 23dBm, and the bands supported by each transmission mode. The indication information may also be, for example, [26, 23; CA (band combination), SUL (band combination), DC (band combination) ], which indicates that the terminal has two corresponding transmitting rf links in three transmission modes of CA, SUL, and DC, the power level values of the carriers of the two transmitting rf links are respectively 26dBm and 23dBm, and the band combination supported in each transmission mode. Here, band combination indicates that two or more frequency bands can be simultaneously supported in a certain transmission mode, for example, CA (band combination) may indicate that two frequency bands of band a and band B are simultaneously supported in a CA transmission mode. The indication information may also be, for example, [23, 26; CA (band combination), DC (band combination); 23 23, 23; SUL (band combination) ] indicates that the terminal has two transmitting rf links corresponding to the three transmission modes of CA, SUL and DC, the power level values of the carriers of the two transmitting rf links are respectively 26dBm and 23dBm in the two transmission modes of CA and DC, the band combination supported by the two transmission modes, the power level values of the carriers of the two transmitting rf links are respectively 23dBm and 23dBm in the SUL transmission mode, and the band combination supported by the transmission mode. For the V2X transmission mode, no example is given here, and similar to the three previous transmission modes, it is sufficient to clarify the correspondence between the transmission mode and the maximum transmission power of each transmission radio frequency link and indicate the correspondence at the corresponding position, and details are not described here again.

It should be understood that if the indication information does not indicate two transmission radio frequency links, the default terminal has a single transmission radio frequency link, and the network device performs transmission power scheduling according to the maximum default output power of the terminal; and if the indication information indicates a plurality of transmitting radio frequency links, performing transmitting power scheduling according to the maximum output power of the plurality of transmitting radio frequency links indicated in the method.

In step 220, the terminal sends indication information to the network device. Accordingly, the network device receives the indication information from the terminal.

After determining the indication information according to step 210, the terminal may send the indication information to the network device, so that the network device performs transmission power scheduling according to the indication information reported by the terminal and based on the maximum value of the transmission power capability of the terminal in the indication information.

In step 230, the network device determines the maximum output power of the terminal.

The network device determines the maximum output power of the terminal, which corresponds to the method for determining the indication information by the terminal, and there are two possible implementation manners. For the first implementation in step 210: the network device may calculate the power level of the terminal according to formula 2, and then calculate the maximum output power of the terminal according to the power level. For the second implementation in step 210: the power grade of the corresponding terminal can be obtained according to the indication information sent by the terminal, and the maximum output power of the terminal can be obtained according to the power grade. The formula for determining the maximum output power of the terminal can refer to formula 1, and details thereof are not repeated herein.

It should be understood that, if the indication information indicates a transmission mode, the network device may determine, according to the indication information, a maximum output power of the terminal corresponding to the transmission mode for performing transmission power scheduling; and if the transmission mode is not indicated in the indication information, the network equipment carries out transmission power scheduling according to the default maximum output power of the terminal.

Fig. 3 is a schematic block diagram of a device 300 for determining maximum output power according to an embodiment of the present disclosure. As shown in fig. 3, the apparatus 300 includes: a determination module 310 and a sending module 320. Wherein: the determining module 310 may be configured to determine indication information, where the indication information is used to indicate a transmit power capability of a terminal, where the transmit power capability is related to maximum transmit powers respectively supported by multiple transmit radio frequency links of the terminal, and the transmit power capability is used to determine a maximum output power of the terminal; the sending module 320 may be configured to send the indication information to a network device.

It should be understood that the determining apparatus 300 of the maximum output power shown in fig. 3 may correspond to the terminal in the embodiment of the method described above in conjunction with fig. 2, and perform the method performed by the terminal. For the sake of brevity, the detailed working method and principle of the apparatus 300 can be referred to the above description in connection with the embodiment of the method shown in fig. 2, and are not described herein again.

Fig. 4 is another schematic block diagram of a device 400 for determining maximum output power provided by an embodiment of the present application. As shown in fig. 4, the apparatus 400 may include at least one processor 410 for implementing the functions of the apparatus for determining the maximum terminal output power in the method provided by the embodiment of the present application. Illustratively, the processor 410 may be configured to determine indication information indicating a transmit power capability of a terminal, the transmit power capability being related to a maximum transmit power respectively supported by a plurality of transmit radio frequency links of the terminal, the transmit power capability being used to determine a maximum output power of the terminal; and sending the indication information to the network equipment.

Optionally, the apparatus 400 may also include at least one memory 420 for storing program instructions and/or data. The memory 420 is coupled to the processor 410. The coupling in the embodiments of the present application is an indirect coupling or a communication connection between devices, units or modules, and may be an electrical, mechanical or other form for information interaction between the devices, units or modules. The processor 410 may operate in conjunction with the memory 420. Processor 410 may execute program instructions stored in memory 420. At least one of the at least one memory may be included in the processor.

Optionally, the apparatus 400 may also include a communication interface 430 for communicating with other devices over a transmission medium, such that the apparatus used in the apparatus 400 may communicate with other devices. The communication interface 430 may be, for example, a transceiver, an interface, a bus, a circuit, or a device capable of performing a transceiving function. The processor 410 may utilize the communication interface 430 to transceive data and/or information and to implement the method performed by the maximum output power determining apparatus described in the corresponding embodiment of fig. 2.

The specific connection medium between the processor 410, the memory 420 and the communication interface 430 is not limited in the embodiments of the present application. In fig. 4, the processor 410, the memory 420, and the communication interface 430 are connected by a bus 440. The bus 440 is shown in fig. 4 by a thick line, and the connection manner between other components is merely illustrative and not limited thereto. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 4, but that does not indicate only one bus or one type of bus.

Fig. 5 is a schematic block diagram of another maximum output power determination apparatus provided in an embodiment of the present application. As shown in fig. 5, the apparatus 500 includes: a receiving module 510 and a determining module 520. Wherein: the receiving module 510 may be configured to receive indication information from a terminal, where the indication information is used to indicate a transmit power capability of the terminal, where the transmit power capability is related to maximum transmit powers respectively supported by multiple transmit radio frequency links of the terminal, and the transmit power capability is used to determine a maximum output power of the terminal; the determining module 520 may be configured to determine the maximum output power according to the indication information.

It should be understood that the determining means 500 of the maximum output power shown in fig. 5 may correspond to the network device in the method embodiment described in conjunction with fig. 2 and execute the method executed by the network device. For the sake of brevity, the detailed working method and principle of the apparatus 500 may refer to the description related to the method embodiment shown in fig. 2, and are not described herein again.

Fig. 6 is another schematic block diagram of another maximum output power determining apparatus 600 provided in the embodiment of the present application. As shown in fig. 6, the apparatus 600 may include at least one processor 610, configured to implement the functions of the maximum terminal output power determining apparatus in the method provided in the embodiment of the present application. Illustratively, the processor 610 is configured to receive indication information from a terminal, the indication information indicating a transmit power capability of the terminal, the transmit power capability being related to a maximum transmit power respectively supported by a plurality of transmit radio frequency links of the terminal, the transmit power capability being used for determining a maximum output power of the terminal; and determining the maximum output power according to the indication information.

The apparatus 600 may also include at least one memory 620 for storing program instructions and/or data. A memory 620 is coupled to the processor 610. The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, and may be in an electrical, mechanical or other form, which is used for information interaction between the devices, units or modules. The processor 610 may operate in conjunction with the memory 620. The processor 610 may execute program instructions stored in the memory 620. At least one of the at least one memory may be included in the processor.

The apparatus 600 may also include a communication interface 630 for communicating with other devices over a transmission medium so that the apparatus used in apparatus 600 may communicate with other devices. The communication interface 630 may be, for example, a transceiver, an interface, a bus, a circuit, or a device capable of performing a transceiving function. The processor 610 may utilize the communication interface 630 to transceive data and/or information and to implement the method performed by the maximum output power determining apparatus described in the corresponding embodiment of fig. 2.

The specific connection medium among the processor 610, the memory 620 and the communication interface 630 is not limited in the embodiments of the present application. In fig. 6, the processor 610, the memory 620, and the communication interface 630 are connected by a bus 640. The bus 640 is represented by a thick line in fig. 6, and the connection between other components is merely illustrative and not intended to be limiting. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 6, but this is not intended to represent only one bus or type of bus.

It should also be understood that the division of the modules in the embodiments of the present application is illustrative, and is only one logical function division, and there may be other division manners in actual implementation. In addition, functional modules in the embodiments of the present application may be integrated into one processor, may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.

The present application further provides a computer program product, the computer program product comprising: computer program (also may be referred to as code, or instructions) which, when executed, causes a computer to perform the method performed by the terminal or the method performed by the network device in the embodiment shown in fig. 2.

The present application also provides a computer-readable storage medium having stored thereon a computer program (also referred to as code, or instructions). When executed, the computer program causes a computer to perform the method performed by the terminal or the method performed by the network device in the embodiment shown in fig. 2.

It should be understood that the processor in the embodiments of the present application may be an integrated circuit chip having signal processing capability. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will also be appreciated that the memory in the embodiments of the subject application may be either volatile memory or nonvolatile memory, or 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 should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

As used in this specification, the terms "unit," "module," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution.

Those of ordinary skill in the art will appreciate that the various illustrative logical blocks and steps (step) described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. 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. In the several embodiments provided in the present application, it should be understood that the disclosed apparatus, device and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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

In the above embodiments, the functions of the functional units may be fully or partially implemented by software, hardware, firmware, or any combination thereof. When implemented in 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 (programs). The procedures or functions described in accordance with the embodiments of the present application are generated in whole or in part when the computer program instructions (programs) are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for determining maximum output power, comprising:

determining indication information, wherein the indication information is used for indicating a transmission power capability of a terminal, the transmission power capability is related to maximum transmission power respectively supported by a plurality of transmission radio frequency links of the terminal, and the transmission power capability is used for determining the maximum output power of the terminal;

and sending the indication information to the network equipment.

2. The method of claim 1, wherein the indication information is specifically for indicating maximum transmit powers supported by the plurality of transmit radio frequency links, respectively.

3. The method of claim 2, wherein the indication information includes maximum transmit power values respectively supported by the plurality of transmit links.

4. The method of claim 2, wherein the indication information includes power levels corresponding to maximum transmission power values respectively supported by the plurality of transmission links, each maximum transmission power value corresponding to one power level.

5. The method of claim 2, wherein the indication information includes a first identifier and a number N of the plurality of transmission radio frequency links, the first identifier belongs to a plurality of identifiers, each identifier of the plurality of identifiers and the number of transmission radio frequency links are used to jointly indicate one of a plurality of combinations, each combination of the plurality of combinations includes a plurality of maximum transmission power values, the first identifier and the number N indicate a first combination, the plurality of combinations includes the first combination, and the first combination includes maximum transmission power values respectively supported by the plurality of transmission radio frequency links.

6. The method of claim 2, wherein the indication information includes a second identifier, the second identifier belongs to a plurality of identifiers, each identifier in the plurality of identifiers is used for jointly indicating one combination in a plurality of combinations, each combination in the plurality of combinations includes a plurality of maximum transmission power values, the second identifier indicates a first combination, the plurality of combinations includes the first combination, and the first combination includes maximum transmission power values respectively supported by the plurality of transmission radio frequency links.

7. The method according to any one of claims 1 to 6, wherein, among the maximum transmission power values supported by the plurality of transmission radio frequency links, the transmission radio frequency link corresponding to the first maximum transmission power value is a primary link, and the transmission radio frequency links corresponding to the other maximum transmission power values are secondary links.

8. The method of claim 1, wherein the indication information is specifically used for indicating a power level of the terminal, and a relation between the power level and a maximum transmission power of the plurality of transmission radio frequency links satisfies:

wherein L represents the power level, P _n Represents the maximum transmission power, P, of the N-th of the N transmission RF chains of the terminal _n More than 0, L more than 0, N more than or equal to 1 and less than or equal to N, N more than 1, N and N are integers.

9. The method of claim 8, wherein the indication information comprises a third identifier and a number N of transmission radio frequency links of the terminal, the third identifier belongs to a plurality of identifiers, each identifier and the number of transmission power links in the plurality of identifiers are used for jointly indicating one power class in a plurality of power classes, the third identifier and the number N indicate the power class of the terminal, and the plurality of power classes include the power class of the terminal.

10. The method of claim 8, wherein the indication information comprises a fourth flag, the fourth flag belongs to a plurality of flags, each flag in the plurality of flags is used for indicating one power level in a plurality of power levels, and the fourth flag indicates the power level of the terminal, and the plurality of power levels includes the power level of the terminal.

11. The method according to any of claims 1 to 10, wherein said indication information is further used for indicating a transmission mode applicable to one or more of said plurality of transmission radio frequency links.

12. The method of claim 11, wherein the indication information is further for indicating a frequency band or a combination of frequency bands used in the transmission mode.

13. A method for determining maximum output power, comprising:

receiving indication information from a terminal, wherein the indication information is used for indicating a transmission power capability of the terminal, the transmission power capability is related to maximum transmission power respectively supported by a plurality of transmission radio frequency links of the terminal, and the transmission power capability is used for determining the maximum output power of the terminal;

and determining the maximum output power according to the indication information.

14. The method of claim 13, wherein the indication information is specifically for indicating maximum transmit powers supported by the plurality of transmit radio frequency links, respectively.

15. The method of claim 14, wherein the indication information includes maximum transmit power values supported by the plurality of transmit chains, respectively.

16. The method of claim 14, wherein the indication information includes power levels corresponding to maximum transmission power values respectively supported by the plurality of transmission links, each maximum transmission power value corresponding to one power level.

17. The method of claim 14, wherein the indication information includes a first identifier and a number N of the plurality of transmitting rf links, the first identifier belongs to a plurality of identifiers, each of the plurality of identifiers and the number of transmitting rf links are used to jointly indicate one of a plurality of combinations, each of the plurality of combinations includes a plurality of maximum transmission power values, the first identifier and the number N indicate a first combination, the plurality of combinations includes the first combination, and the first combination includes maximum transmission power values respectively supported by the plurality of transmitting rf links.

18. The method of claim 14, wherein the indication information includes a second identifier, the second identifier belongs to a plurality of identifiers, each identifier in the plurality of identifiers is used to jointly indicate one of a plurality of combinations, each combination in the plurality of combinations includes a plurality of maximum transmission power values, the second identifier indicates a first combination, the plurality of combinations includes the first combination, and the first combination includes maximum transmission power values respectively supported by the plurality of transmission radio frequency links.

19. The method according to any one of claims 13 to 18, wherein, among the maximum transmission power values supported by the plurality of transmission rf links, respectively, a transmission rf link corresponding to a first maximum transmission power value is a primary link, and transmission rf links corresponding to other maximum transmission power values are secondary links.

20. The method of claim 13, wherein the indication information is specifically used for indicating a power level of the terminal, and a relation between the power level and a maximum transmission power of the plurality of transmission radio frequency links satisfies:

wherein L represents the power level, P _n Representing the maximum transmission power, P, of the nth of the N transmission RF chains _n More than 0, L more than 0, N more than or equal to 1 and less than or equal to N, N more than 1, N and N are integers.

21. The method of claim 20, wherein the indication information comprises a third identifier and a number N of transmission radio frequency links of the terminal, the third identifier belongs to a plurality of identifiers, each identifier and the number of transmission power links in the plurality of identifiers are used for jointly indicating one power class in a plurality of power classes, the third identifier and the number N indicate the power class of the terminal, and the power classes of the terminal are included in the plurality of power classes.

22. The method of claim 20, wherein the indication information comprises a fourth flag, the fourth flag belongs to a plurality of flags, each flag in the plurality of flags is used for indicating one power level in a plurality of power levels, and the fourth flag indicates the power level of the terminal, and the plurality of power levels includes the power level of the terminal.

23. The method according to any of claims 13 to 22, wherein said indication information is further used for indicating a transmission mode applicable to one or more of said plurality of transmission radio frequency links.

24. The method of claim 23, wherein the indication information is further used for indicating a frequency band or a combination of frequency bands used in the transmission mode.

25. A device for determining maximum output power, characterised by being adapted to carry out the method of any one of claims 1 to 12 or adapted to carry out the method of any one of claims 13 to 24.

26. An apparatus for determining maximum output power, comprising a processor; the processor is configured to invoke program code to cause the apparatus to perform the method of any of claims 1 to 12 or to perform the method of any of claims 13 to 24.

27. A computer-readable storage medium, on which a computer program is stored, which, when executed, causes a computer to perform the method of any one of claims 1 to 24.

28. A computer program product, comprising a computer program which, when executed, causes a computer to perform the method of any one of claims 1 to 24.