CN114424633A

CN114424633A - Information transmission method, device, communication equipment and storage medium

Info

Publication number: CN114424633A
Application number: CN202180004755.7A
Authority: CN
Inventors: 张娟; 郭胜祥
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-04-29
Also published as: WO2023122893A1

Abstract

The disclosed embodiment relates to an information transmission method, an information transmission device, a communication device and a storage medium, wherein a terminal sends power indication information, wherein the power indication information is used for determining the maximum superposition transmission power of the terminal in N frequency bands in a multi-carrier system, the maximum superposition transmission power is different from the transmission power indicated by a first type of power level, and N is a positive integer greater than or equal to 1.

Description

Information transmission method, device, communication equipment and storage medium

Technical Field

The present application relates to the field of wireless communication technologies, but not limited to the field of wireless communication technologies, and in particular, to an information transmission method, apparatus, communication device, and storage medium.

Background

The high-power terminal can better solve the uplink limitation problem. Under the condition that no additional cost is required to be invested on the network side, the uplink limitation problem of the high-frequency-band cell can be greatly relieved, the uplink service coverage radius is effectively enlarged, and the service experience of edge users is obviously improved.

In the fourth generation (4G, 4)^thGeneration) in a cellular mobile communication system, a high power terminal generally refers to a terminal having a maximum transmission power at an antenna port of up to 26 dBm. Compared with the common terminal with the maximum transmitting power of 23dBm, the maximum transmitting power of the high-power terminal is improved by 3 dB. With the continuous evolution of New air interface (NR) technology, the maximum transmission power of a single-band high-power terminal in an NR system at an antenna port can reach 29dBm which is 26dBm or higher.

Disclosure of Invention

In view of this, the disclosed embodiments provide an information transmission method, apparatus, communication device and storage medium.

According to a first aspect of the embodiments of the present disclosure, there is provided an information transmission method, where the information transmission method is performed by a terminal, and the method includes:

and sending power indication information, wherein the power indication information is used for determining the maximum superposed transmission power of the terminal in N frequency bands in the multi-carrier system, the maximum superposed transmission power is different from the transmission power indicated by the first type of power level, and N is a positive integer greater than or equal to 1.

According to a second aspect of the embodiments of the present disclosure, there is provided an information transmission method, wherein the information transmission method is performed by a base station, and the method includes:

receiving power indication information, wherein the power indication information is used for determining maximum superposed transmission power of the terminal in N frequency bands in the multi-carrier system, the maximum superposed transmission power is different from the transmission power indicated by the first type of power class, and N is a positive integer greater than or equal to 1.

According to a third aspect of the embodiments of the present disclosure, there is provided an information transmission apparatus, wherein the apparatus includes:

the terminal comprises a sending module configured to send power indication information, wherein the power indication information is used for determining maximum superposition transmission power of the terminal in N frequency bands in a multi-carrier system, the maximum superposition transmission power is different from the transmission power indicated by the first type of power level, and N is a positive integer greater than or equal to 1.

According to a fourth aspect of the embodiments of the present disclosure, there is provided an information transmission apparatus, wherein the apparatus includes:

the terminal comprises a receiving module configured to receive power indication information, wherein the power indication information is used for determining maximum superposition transmission power of the terminal in N frequency bands in a multi-carrier system, the maximum superposition transmission power is different from the transmission power indicated by the first type of power level, and N is a positive integer greater than or equal to 1.

According to a fifth aspect of the embodiments of the present disclosure, there is provided a communication device apparatus, including a processor, a memory, and an executable program stored on the memory and capable of being executed by the processor, wherein the processor executes the executable program to perform the steps of the information transmission method according to the first aspect or the second aspect.

According to a sixth aspect of the embodiments of the present disclosure, there is provided a storage medium having stored thereon an executable program, wherein the executable program when executed by a processor implements the steps of the information transmission method according to the first or second aspect

The embodiment of the disclosure provides an information transmission method, an information transmission device, communication equipment and a storage medium. The terminal sends power indication information, wherein the power indication information is used for determining the maximum superposition transmission power of the terminal in N frequency bands in a multi-carrier system, the maximum superposition transmission power is different from the transmission power indicated by the first class power level, and N is a positive integer greater than or equal to 1. Therefore, the maximum superposition transmission power which cannot be indicated by the first-class power grade is determined through the power indication information, and the accuracy of the indication of the maximum superposition transmission power is improved. The base station configures the terminal based on the maximum superposition transmitting power determined by the power indication information, and the accuracy of the base station configuration is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of embodiments of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the embodiments.

Fig. 1 is a block diagram illustrating a wireless communication system in accordance with an exemplary embodiment;

FIG. 2 is a flow diagram illustrating a method of information transmission according to an example embodiment;

fig. 3 is a schematic diagram illustrating carrier aggregation in accordance with an example embodiment;

FIG. 4 is a flow diagram illustrating another method of information transmission according to an example embodiment;

FIG. 5 is a flow diagram illustrating yet another method of information transfer in accordance with an exemplary embodiment;

FIG. 6 is a block diagram illustrating an information transfer device in accordance with an exemplary embodiment;

FIG. 7 is a block diagram illustrating another information transfer device in accordance with an exemplary embodiment;

fig. 8 is a block diagram illustrating an apparatus for information transfer in accordance with an example embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with embodiments of the invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of embodiments of the invention, as detailed in the following claims.

The terminology used in the embodiments of the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present disclosure. As used in the disclosed embodiments and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information in the embodiments of the present disclosure, such information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of embodiments of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

Referring to fig. 1, a schematic structural diagram of a wireless communication system according to an embodiment of the present disclosure is shown. As shown in fig. 1, the wireless communication system is a communication system based on a cellular mobile communication technology, and may include: several terminals 11 and several base stations 12.

Terminal 11 may refer to, among other things, a device that provides voice and/or data connectivity to a user. The terminal 11 may communicate with one or more core networks via a Radio Access Network (RAN), and the terminal 11 may be an internet of things terminal, such as a sensor device, a mobile phone (or referred to as a "cellular" phone), and a computer having the internet of things terminal, and may be a fixed, portable, pocket, handheld, computer-included, or vehicle-mounted device, for example. For example, a Station (STA), a subscriber unit (subscriber unit), a subscriber Station (subscriber Station), a mobile Station (mobile), a remote Station (remote Station), an access point (ap), a remote terminal (remote terminal), an access terminal (access terminal), a user equipment (user terminal), a user agent (user agent), a user equipment (user device), or a user terminal (UE). Alternatively, the terminal 11 may be a device of an unmanned aerial vehicle. Alternatively, the terminal 11 may also be a vehicle-mounted device, for example, a vehicle computer with a wireless communication function, or a wireless communication device externally connected to the vehicle computer. Alternatively, the terminal 11 may be a roadside device, for example, a street lamp, a signal lamp or other roadside device with a wireless communication function.

The base station 12 may be a network side device in a wireless communication system. The wireless communication system may be a fourth generation mobile communication (4G) system, which is also called a Long Term Evolution (LTE) system; alternatively, the wireless communication system can be a 5G system, which is also called a New Radio (NR) system or a 5G NR system. Alternatively, the wireless communication system may be a next-generation system of a 5G system. Among them, the Access Network in the 5G system may be referred to as NG-RAN (New Generation-Radio Access Network, New Generation Radio Access Network). Alternatively, an MTC system.

The base station 12 may be an evolved node b (eNB) used in a 4G system. Alternatively, the base station 12 may be a base station (gNB) adopting a centralized distributed architecture in the 5G system. When the base station 12 adopts a centralized distributed architecture, it generally includes a Centralized Unit (CU) and at least two Distributed Units (DU). A Packet Data Convergence Protocol (PDCP) layer, a Radio Link layer Control Protocol (RLC) layer, and a Media Access Control (MAC) layer are provided in the central unit; a Physical (PHY) layer protocol stack is disposed in the distribution unit, and the embodiment of the present disclosure does not limit the specific implementation manner of the base station 12.

The base station 12 and the terminal 11 may establish a wireless connection over a wireless air interface. In various embodiments, the wireless air interface is based on a fourth generation mobile communication network technology (4G) standard; or the wireless air interface is based on a fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface; alternatively, the wireless air interface may be a wireless air interface based on a 5G next generation mobile communication network technology standard.

In some embodiments, an E2E (End to End) connection may also be established between terminals 11. Scenarios such as V2V (vehicle to vehicle) communication, V2I (vehicle to Infrastructure) communication, and V2P (vehicle to vehicle) communication in vehicle networking communication (V2X).

In some embodiments, the wireless communication system may further include a network management device 13.

Several base stations 12 are connected to a network management device 13, respectively. The network Management device 13 may be a Core network device in a wireless communication system, for example, the network Management device 13 may be a Mobility Management Entity (MME) in an Evolved Packet Core (EPC). Alternatively, the Network management device may also be other core Network devices, such as a Serving GateWay (SGW), a Public Data Network GateWay (PGW), a Policy and Charging Rules Function (PCRF), a Home Subscriber Server (HSS), or the like. The implementation form of the network management device 13 is not limited in the embodiment of the present disclosure.

The execution subject that this disclosed embodiment relates to includes but not limited to: a mobile phone terminal in a cellular mobile communication system, and a network side device, such as an access network device like a base station, and a core network.

In general, the maximum transmission Power can be indicated by a Power Class (PC), and the Power Class in the NR single carrier system includes: PC5(20dBm), PC3(23dBm), PC2(26dBm), PC1.5(29dBm) and PC1(31 dBm).

As the problem of Specific Absorption Rate (SAR) is solved by means of Power Management Maximum Power Reduction (P-MPR) and duty ratio, the high Power terminal is also applied to the multi-carrier system.

The transmission power in the multi-carrier system can be obtained by overlapping the transmission power of single carriers under different frequency bands. Currently, high power (PC2) in multi-carrier systems includes: the PC3 plus PC3, PC3 plus PC2, PC2 plus PC3, PC2 plus PC3, and PC2 plus PC2 correspond to frequency band combinations, and higher power can be obtained through different combinations among the PC3, the PC2, and the PC1.5, for example, corresponding frequency band combinations of the PC3 plus PC1.5, the PC2 plus PC1.5, the PC1.5 plus PC1.5, and the like can be included.

In a multi-carrier system, an Evolved terrestrial radio access (Evolved terrestrial radio access) and New air interface (EN-DC) Dual connection (New radio-Dual Connectivity) system terminal may report an aggregated power level (EN-DC power level), and report power levels of LTE and NR in the Dual connection, and a NR single carrier power level, respectively. As shown in table 1. Table 1 also shows the information elements used for each power class.

TABLE 1

In the NR multi-Carrier system, the terminal only reports the power level of Carrier Aggregation (CA), i.e., the maximum superposition transmission power, and does not report the power level of each frequency band in the Carrier Aggregation. The power class of carrier aggregation and the power class of each frequency band may be as shown in table 2.

TABLE 2

In table 2, the power class of the maximum superimposed transmit power is specified, that is, the maximum superimposed transmit power is not obtained by superimposing the transmit powers on the frequency bands in the carrier aggregation operating mode.

The power level of the terminal in some frequency bands is inconsistent in the carrier aggregation working mode and the single carrier working mode, which is caused by the application of the uplink transmission diversity.

If the radio frequency has two transmission (Tx) in the uplink carrier aggregation mode, the frequency band can only operate at the power level of 23dBm (PC3), but the power level of each frequency band in the carrier aggregation mode is not reported separately in the carrier aggregation system. Therefore, the base station cannot distinguish whether the power level is increased on some frequency bands due to uplink diversity in the carrier aggregation operation mode.

In the multi-carrier system, the maximum superposition transmission power is further increased, and the achievable maximum superposition transmission power is shown in table 3. The existing power level cannot accurately indicate the actual maximum superimposed transmission power.

TABLE 3

Therefore, how to accurately report the maximum superimposed power of multiple carriers in a multi-carrier system, and when the power levels of the frequency bands in the single carrier operating mode and the carrier aggregation operating mode are inconsistent, the power increase caused by uplink diversity can be distinguished, which is a problem to be solved urgently.

As shown in fig. 2, the present exemplary embodiment provides an information transmission method, which may be performed by a terminal of a cellular mobile communication system, including:

step 201: and sending power indication information, wherein the power indication information is used for determining the maximum superposition transmission power of the terminal in N frequency bands in the multi-carrier system.

Wherein N is a positive integer greater than or equal to 1.

Here, the multi-carrier system includes, but is not limited to, a cellular mobile communication system which communicates by multiple carrier aggregation of NR, and may include: a carrier aggregation technology system, a Dual Connectivity (DC) system, a Dual connectivity (MRDC) system of a multiple access system, such as EN-DC and NE-DC.

The carrier aggregation technology can aggregate a plurality of carriers together, thereby realizing larger transmission bandwidth and effectively improving the uplink and downlink transmission rate. As shown in fig. 3, the bandwidth of one carrier is 20MHz, and the transmission bandwidth of 100MHz can be achieved by aggregating 5 carriers. The terminal can decide the maximum number of carriers which can be simultaneously utilized according to the capacity of the terminal.

The transmission bandwidth and the transmission rate can be improved through the aggregation of a plurality of carriers. The multiple carrier aggregation may be multiple carrier aggregation in different frequency bands, or multiple carrier aggregation in a single frequency band. For example: the multiple carrier aggregation may be multiple carrier aggregation in both frequency bands a and B.

Here. The maximum superimposed transmit power may be a superimposed value of transmit powers of a plurality of carriers when the terminal transmits a signal in a carrier aggregation operation mode in the multi-carrier system. The maximum superimposed transmission power may be a superimposed value of transmission powers of multiple carriers in multiple frequency bands, or a superimposed value of transmission powers of multiple carriers in a single frequency band.

The maximum superimposed transmit power may be different from the transmit power indicated by the first type of power class.

The first type power class may be a power class in the related art. The first class of power levels and their indicated powers are shown in table 4.

TABLE 4

Class I power class	Corresponding power
		PC1	31dBm
PC1.5	29dBm
		PC2	26dBm
PC3	23dBm
		PC5	20dBm

Illustratively, the transmission power indicated by the power indication information may be any superimposed transmission power value other than the maximum superimposed transmission power described in table 4.

When the transmission power of the terminal in the single carrier operation mode reaches the power level shown in table 5, the maximum superposition transmission power that can be achieved in the multi-carrier system, i.e., the terminal in the carrier aggregation operation mode, is shown in table 5. Here, the transmission power in the single carrier operating mode for superposition may be non-diversity transmission power.

TABLE 5

In conjunction with tables 4 and 5, it may be determined that none of the first type power levels PC1, PC1.5, PC2, PC3, and PC5 are indicative of the maximum superposition transmit power in table 5.

Here, the terminal may transmit power indication information to the base station, and the power indication information may be used for the base station to determine that the PC1, PC1.5, PC2, PC3, and PC5 cannot indicate the maximum superposition transmission power of any one, such as 27.8dBm, 30dBm, 30.8dBm, 32dBm, and the like.

Here, the power indication information may directly indicate the maximum superposition transmission power, or provide the base station with associated information for determining the maximum superposition transmission power, such as the power level of the transmission power of the terminal in the single carrier operating mode, and the base station determines the actual maximum superposition transmission power.

Therefore, the maximum superposition transmission power which cannot be indicated by the first-class power grade is determined through the power indication information, and the accuracy of the indication of the maximum superposition transmission power is improved. The base station configures the terminal based on the maximum superposition transmitting power determined by the power indication information, and the accuracy of the base station configuration is improved.

In one embodiment, the maximum superimposed transmit power determined by the power indication information includes: and the terminal is obtained by linearly superposing the transmitting power on each frequency band in the carrier aggregation working mode.

The maximum superposed transmit power determined by the power indication information may be a designated transmit power, or may be an actual power obtained by linearly superposing the transmit power of the terminal on each frequency band in the carrier aggregation operating mode. That is, the maximum superimposed transmit power may be the result of the accumulation of the transmit power of the terminal on each frequency band in the carrier aggregation operating mode. In the related art, the first-class power class cannot accurately indicate the maximum superimposed transmission power, so that the power class of the maximum superimposed transmission power is specified, that is, the maximum superimposed transmission power is not obtained by superimposing the transmission power on each frequency band in the carrier aggregation operating mode.

Here, the linear superposition means that in the multi-carrier system, the maximum superposed transmission power is obtained by adding the transmission power of the terminal on each frequency band in the carrier aggregation operating mode, and is not specified based on the transmission power of the terminal on each frequency band in the carrier aggregation operating mode or the transmission power on each frequency band in the single carrier mode. The maximum superposed transmitting power corresponding to the designated power class is not necessarily equal to the superposed value of the transmitting power of the terminal on each frequency band in the carrier aggregation working mode.

Therefore, the maximum superposition transmission power determined by the power indication information truly reflects the actual transmission power of the terminal in the multi-carrier system, namely the terminal in the carrier aggregation working mode, and the accuracy of the maximum superposition transmission power indication is improved. The base station configures the terminal based on the maximum superposition transmitting power determined by the power indication information, and the accuracy of the base station configuration is improved.

In one embodiment, the power indication information includes:

a first indication indicating a second type of power level of the maximum superposition transmit power, wherein the second type of power level is different from the first type of power level.

Here, in the multi-carrier system, the second type of power level may be defined according to a maximum superimposed transmission power obtained by superimposing transmission powers of the terminals on the frequency bands in the carrier aggregation operation mode. The second type of power level may be used to indicate a transmit power that the first type of power level cannot indicate.

Illustratively, an IE: the powerClass-v1xxx carries a second class power level. The second type of power level may be: { PCv, PCz, PCy, PCx, … },

illustratively, PCv, PCz, PCy, PCx, etc., are each used to indicate a different transmit power.

For example, PCv, PCz, PCy, and PCx may be used to indicate the maximum superimposed transmit power, respectively, as shown in Table 6.

TABLE 6

The maximum superimposed transmit power indicated by the second type of power level may be the transmit power of the linearly superimposed terminal on each frequency band in the carrier aggregation operation mode. If the maximum superposition transmission power is determined based on the power level in the single carrier working mode reported by the terminal, and the terminal simultaneously reports the support of the transmission diversity on a certain frequency band, the power level of the terminal in the single carrier working mode on the frequency band should be reduced by 3dB, the transmission power on the frequency band under the carrier aggregation working mode is obtained, and then superposition is carried out.

Exemplary, IE: the ue-PowerClass may be used to carry the power class of the terminal in the single carrier mode of operation. If Band A reports IE: ue-PowerClass PC2, and Band a supports transmit diversity, Band B reports IE: ue-PowerClass PC2, the power level of the terminal in the Band a carrier aggregation mode of operation is PC3, the power level of the terminal in the Band B carrier aggregation mode of operation is PC2, and the power of the superposition of the two is 27.8 dBm. According to the correspondence of table 6, the terminal should pass IE: powerClass-v1xxx report PCx.

When Band a reports IE: ue-PowerClass PC2, Band B reports IE: ue-PowerClass PC2, when the terminal should pass IE: powerClass-v1610 reports PC 1.5.

Therefore, the actual maximum superposition transmission power is indicated through the second type power level, and the accuracy of the indication of the maximum superposition transmission power is improved. The base station configures the terminal based on the maximum superposition transmitting power determined by the power indication information, and the accuracy of the base station configuration is improved.

In one embodiment, the power indication information includes:

a second indication that the maximum superposition transmit power is equal to a linear superposition value of transmit powers over N frequency bands supported by the terminal;

the second indication may be used to generally refer to the maximum superimposed transmit power, for example, the maximum superimposed transmit power may be referred to generally by PC0, and PC0 does not represent a specific power value. The maximum superposed transmit power indicated by the second indication may be obtained by linear superposition of transmit powers of the terminals on the frequency bands in the carrier aggregation operation mode.

Here, the linear superposition means that the maximum superposed transmission power is obtained by adding up the transmission power, instead of assigning a power class based on the transmission power of the terminal in each frequency band in the carrier aggregation operation mode, and the power corresponding to the assigned power class is not necessarily equal to the superposed value of the transmission power of the terminal in each frequency band in the carrier aggregation operation mode. For example, the transmitting power of the terminal on the two frequency bands in the carrier aggregation operating mode is respectively PC3:23dBm and PC2:26dBm, and then the maximum superposition transmitting power after linear superposition is 27.8 dBm; and in the related art, the specified maximum superimposed transmission power may be PC2 or PC3, etc.

Illustratively, an IE: the powerClass-v1xxx carries a second indication, and the carrying second type of power class may be: { PC0}, PC0 does not represent a specific power value.

PC0 may be used to generally refer to the maximum superimposed transmit power resulting from the linear superposition of transmit power for each frequency band of the terminal in the carrier aggregation mode of operation shown in table 7.

TABLE 7

Exemplary, IE: the ue-PowerClass may be used to carry power classes in single carrier operating modes. If Band A reports IE: ue-PowerClass PC2, and Band a supports transmit diversity, Band B reports IE: ue-PowerClass PC2, the power level of the terminal in the Band a carrier aggregation mode of operation is PC3, the power level of the terminal in the Band B carrier aggregation mode of operation is PC2, and the power of the superposition of the two is 27.8 dBm. According to the correspondence of table 7, the terminal should pass IE: PowerClass-v1xxx reports to PC 0.

The base station receives the second indication, and can determine the maximum superposed transmitting power obtained by linear superposition of the transmitting power of the terminal on each frequency band in the carrier aggregation working mode.

Therefore, the maximum superposition transmission power is determined based on the second indication, and the indication accuracy of the maximum superposition transmission power is improved. The base station configures the terminal based on the maximum superposition transmitting power determined by the power indication information, and the accuracy of the base station configuration is improved.

In one embodiment, the power indication information includes:

a third indication indicating whether the terminal supports linear superposition of transmit power over N frequency bands.

Illustratively, as shown in table 8, IE: the sumPowerUL-CA-r17 or fullPowerUL-CA-r17 carries a third indication.

TABLE 8

And the third indication is used for indicating the superposition capability of the transmission power of the terminal on each frequency band in the carrier aggregation working mode. If the third indication indicates that the transmission power of the terminal on each frequency band has the superposition capability in the carrier aggregation working mode, the maximum superposition transmission power can be obtained by superposing the transmission power of the terminal on each frequency band in the carrier aggregation working mode. Otherwise, the maximum superimposed transmit power may be determined using the power level specified in the related art.

Illustratively, the third indication may indicate that the terminal supports linear superposition of transmit power over N bands by { supported }, and if the third indication is a default value, it may be determined that the terminal does not support linear superposition of transmit power over N bands

Exemplarily, if IE: supmWiwer UL-CA-r17 or fullPowerUL-CA-r17 are default values, then the network is based on the related art IE: determining the maximum superposed transmitting power by the powerClass-v1530 or powerClass-v1610, and configuring corresponding power for the terminal; if the terminal reports IE: the supported is the supported UL-CA-r17 or fullPowerUL-CA-r17, and the maximum superposed transmitting power obtained by superposing the transmitting power of the terminal on each frequency band in the single carrier operating mode is the corresponding power configured by the terminal by the network. If the terminal simultaneously reports and supports the transmit diversity in a single carrier working mode on a certain frequency band, the transmit power of the terminal on the frequency band needs to be reduced by 3dB and then superposed.

Exemplary, IE: the ue-PowerClass may be used to carry power classes in single carrier operating modes. If Band A reports IE: ue-PowerClass PC2, and Band a supports transmit diversity, Band B reports IE: ue-PowerClass PC2, the power level of the terminal in the Band a carrier aggregation mode of operation is PC3, the power level of the terminal in the Band B carrier aggregation mode of operation is PC2, and the power of the superposition of the two is 27.8 dBm.

In one embodiment, the method further comprises: and in response to that the power indication information comprises the second indication or the third indication, the base station linearly superposes the transmitting power on the N frequency bands supported by the terminal to obtain the maximum superposed transmitting power.

Here, the transmit power on the N frequency bands may be transmit power on each frequency band of the terminal in the carrier aggregation operation mode.

Since the second indication or the third indication does not indicate the maximum superimposed transmission power or the power level of the maximum superimposed transmission power, only the direct or indirect indication of the maximum superimposed transmission power can be obtained by linearly superimposing the transmission power of the terminal on each frequency band in the carrier aggregation operating mode. Therefore, the base station can linearly superimpose the transmission power of the terminal on each frequency band in the carrier aggregation operating mode, and determine the maximum superimposed transmission power.

The base station can also determine a power level corresponding to the maximum superposition transmission power based on the determined maximum superposition transmission power. The power level corresponding to the maximum superimposed transmit power may be the first type of power level or the second type of power level.

In this way, the maximum superposition transmission power is determined based on the second indication or the third indication, and the accuracy of determining the maximum superposition transmission power indication is improved. The base station configures the terminal based on the maximum superposition transmitting power determined by the power indication information, and the accuracy of the base station configuration is improved.

In one embodiment, the power indication information is further used to indicate a transmit power of each frequency band supported by the terminal in the multi-carrier system.

Here, the transmit power of each frequency band supported by the terminal in the multi-carrier system may be the transmit power of each frequency band in the carrier aggregation operation mode of the terminal.

In the related art, a terminal may report a power level of a transmission power in a single carrier operating mode. In the single carrier operating mode, the terminal may transmit in a transmit diversity manner. For example, the terminal has two Transmissions (TX), with transmit power PC2(26dBm) when transmit diversity is employed. In the multi-carrier system, the transmission power of each frequency band needs to be reduced by 3dB in the carrier aggregation operation mode.

Here, the base station receives the transmission power in the single carrier operating mode reported by the terminal and the transmission power in each frequency band in the carrier aggregation operating mode, and can determine whether the terminal adopts the transmission diversity in the single carrier operating mode.

Illustratively, the power level of the transmit power reported by the terminal in the single carrier operating mode is PC2, that is, 26dBm, and the transmit power of a certain frequency band supported in the multi-carrier system reported by the terminal is 23dBm, so that it can be determined that the transmit diversity is adopted in the single carrier operating mode.

Therefore, the terminal can distinguish the power increase brought by the uplink transmission diversity by combining the transmission power of each frequency band supported in the multi-carrier system indicated by the power indication information and the transmission power of the single-carrier working mode.

In one embodiment, the power indication information is used to indicate the first type or the second type of power level of the transmission power of each frequency band supported by the terminal in the multi-carrier system.

Here, the transmission power of each frequency band supported by the terminal in the multi-carrier system, which is indicated by the power indication information, may be a power class. The transmit power of each frequency band may be a power level which may be a first type of power level or a second type of power level.

Illustratively, an IE: the ue-PowerClass-CA-r17 carries the power level of the transmit power for each frequency band supported in the multi-carrier system. The power level carried may be { pc1, pc1.5, pc2, pc3, pc4, pc5 … }.

Exemplarily, in combination with the second type of power level indicating the maximum superimposed transmit power with the first indication, using IE: powerClass-v1xxx carries a second class power level, and uses IE: the ue-PowerClass-CA-r17 carries the power level of the transmit power for each frequency band supported in the multi-carrier system. The contents of the power indication information indication may be as shown in table 9.

TABLE 9

Illustratively, the maximum superposition transmission power is generally indicated in combination with the second indication, i.e. by using IE: powerClass-v1xxx carries the second indication, and employs IE: the ue-PowerClass-CA-r17 carries the power level of the transmit power for each frequency band supported in the multi-carrier system. The contents of the power indication information indication may be as shown in table 10.

Watch 10

For example, in combination with the third indication for indicating the superposition capability of the transmission power of the terminal on each frequency band in the carrier aggregation operating mode, the method uses IE: supmPowerUL-CA-r 17 or fullPowerUL-CA-r17 carries a third indication, and the following IE: the ue-PowerClass-CA-r17 carries the power level of the transmit power for each frequency band supported in the multi-carrier system. The contents of the power indication information indication may be as shown in table 11.

TABLE 11

As shown in fig. 4, the present exemplary embodiment provides an information transmission method, which may be performed by a base station of a cellular mobile communication system, including:

step 401: and receiving power indication information, wherein the power indication information is used for determining the maximum superposition transmission power of the terminal in N frequency bands in the multi-carrier system. Wherein N is a positive integer greater than or equal to 1.

The maximum superposed transmit power determined by the power indication information may be a designated transmit power, or may be an actual power obtained by linearly superposing the transmit power of the terminal on each frequency band in the carrier aggregation operating mode. In the related art, the first-class power class cannot accurately indicate the maximum superimposed transmission power, so that the power class of the maximum superimposed transmission power is specified, that is, the maximum superimposed transmission power is not obtained by superimposing the transmission power on each frequency band in the carrier aggregation operating mode.

In one embodiment, the power indication information includes:

And the maximum superposed transmitting power indicated by the second type of power level can linearly superpose the transmitting power of the terminal on each frequency band in the carrier aggregation working mode. If the maximum superposition transmission power is determined based on the power level in the single carrier working mode reported by the terminal, and the terminal simultaneously reports the support of the transmission diversity on a certain frequency band, the power level of the terminal in the single carrier working mode on the frequency band should be reduced by 3dB, the transmission power on the frequency band under the carrier aggregation working mode is obtained, and then superposition is carried out.

In one embodiment, the power indication information includes:

a second indication that the maximum superposition transmit power is equal to a linear superposition of transmit powers over N frequency bands supported by the terminal.

In one embodiment, the power indication information includes:

In one embodiment, as shown in fig. 5, the method further comprises:

step 501: and the base station configures the uplink power of the terminal based on the maximum superposition transmitting power determined by the power indication information.

The base station may configure the uplink power of the terminal based on the maximum superimposed transmit power. On one hand, the signal-to-noise ratio or the bit error rate required by the base station is met, and on the other hand, the same-frequency channel interference in the same communication system is realized by adjusting the uplink power.

Step 501 may be implemented alone or in combination with step 401.

One specific example is provided below in connection with any of the embodiments described above:

how to report aggregated power levels is superposed according to the maximum transmission power on each frequency band

1: in a multi-carrier system, a new power level is defined based on the maximum superimposed transmit power. For example, IE: powerClass-v1 xxx: { PCv, pcz, PCy, pcx, … }, e.g., PCx (27.8dBm), PCy (30dBm), PCz (30.8dBm), PCv (32dBm),. . . And the superposed power is superposed according to the power level of each frequency band in the single carrier operating mode. If the terminal simultaneously reports support transmit diversity (Tx diversity) on a certain frequency band, the power level of the terminal on the frequency band should be reduced by 3 dB. For example Band a reports IE: ue-PowerClass PC2 and supports transmit diversity, Band B reports IE: ue-PowerClass PC2, when the terminal should pass IE: powerClass-v1xxx reports PCx (27.8 dBm); when Band a reports IE: ue-PowerClass PC2, Band B reports IE: ue-PowerClass PC2, when the terminal should pass IE: powerClass-v1610 reports PC 1.5.

2: combining with 1 and defining the power level supported by the terminal in each frequency band in the multi-carrier system, such as IE: ue-PowerClass-CA-r 17: { pc1, pc1.5, pc2, pc3, pc4, pc5 }. The contents of the indications are shown in table 9.

3: in a multi-carrier system, a power level of a generalized aggregate transmit power is defined, e.g., IE: powerClass-v1 xxx: { PC0}, PC0 does not represent specific power values, but merely represents the power sum of the maximum aggregate transmit power for the power classes supported on each band. Similarly, if the terminal simultaneously reports support of transmit diversity on a frequency band, the power level of the terminal on the frequency band should be reduced by 3 dB. For example: band a reports IE: ue-PowerClass PC2 and supports transmit diversity, Band B reports IE: ue-PowerClass PC2, when the terminal should pass IE: reporting the power class-v1xxx to PC 0; when Band a reports IE: ue-PowerClass PC2, Band B reports IE: ue-PowerClass PC2, when the terminal should pass IE: powerClass-v1610 reports PC 1.5.

4: combining with 3 and defining the power level supported by the terminal in each frequency band in the multi-carrier system, such as IE: ue-PowerClass-CA-r 17: { pc1, pc1.5, pc2, pc3, pc4, pc5 }. The contents of the indications are shown in table 10.

5: in a multi-carrier system, the capability of whether a terminal supports the maximum superposition power is defined, such as IE: sumPowerUL-CA-r17 or fullPowerUL-CA-r 17: supported, if this IE is default, the network will, according to the existing IE: and configuring corresponding power for the terminal by the powerClass-v1530 or the powerClass-v1610, and if the terminal reports support of the summowerUL-CA-r 17 or fullPowerUL-CA-r17, configuring the corresponding power for the terminal by the network according to the maximum value of the power grades supported on each frequency band. If the terminal simultaneously reports the support of the transmit diversity on a certain frequency band, the power level of the terminal on the frequency band should be reduced by 3 dB.

6: and combining 5 and defining the power level supported by the terminal in each frequency band in the multi-carrier system, such as IE: ue-PowerClass-CA-r 17: { pc1, pc1.5, pc2, pc3, pc4, pc5 }. The contents of the indications are shown in table 11.

An embodiment of the present invention further provides an information transmission apparatus, as shown in fig. 6, which is applied to a cellular mobile wireless communication terminal, where the apparatus 100 includes:

a sending module 110, configured to send power indication information, where the power indication information is used to determine a maximum superposition transmission power of the terminal in N frequency bands in the multi-carrier system, where the maximum superposition transmission power is different from a transmission power indicated by the first type of power class, where N is a positive integer greater than or equal to 1.

In one embodiment, the power indication information includes one of:

a first indication indicating a second type of power level of the maximum superposition transmit power, wherein the second type of power level is different from the first type of power level;

An embodiment of the present invention further provides an information transmission apparatus, as shown in fig. 7, which is applied to a base station of cellular mobile wireless communication, where the apparatus 200 includes:

a receiving module 210 configured to receive power indication information, where the power indication information is used to determine a maximum superposed transmit power of the terminal in N frequency bands in the multi-carrier system, where the maximum superposed transmit power is different from a transmit power indicated by the first type of power class, and N is a positive integer greater than or equal to 1.

In one embodiment, the power indication information includes one of:

In one embodiment, the apparatus further comprises:

the determining module 220, in response to that the power indication information includes the second indication or the third indication, linearly superimposes the transmission powers on the N frequency bands supported by the terminal to obtain the maximum superimposed transmission power.

In an exemplary embodiment, the transmitting module 110, the receiving module 210 or the determining module 220 may be implemented by one or more Central Processing Units (CPUs), Graphics Processing Units (GPUs), Baseband Processors (BPs), Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, Micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the foregoing methods.

Fig. 8 is a block diagram illustrating an apparatus 3000 for information transfer in accordance with an example embodiment. For example, the apparatus 3000 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and so forth.

Referring to fig. 8, the apparatus 3000 may include one or more of the following components: processing component 3002, memory 3004, power component 3006, multimedia component 3008, audio component 3010, input/output (I/O) interface 3012, sensor component 3014, and communications component 3016.

The processing component 3002 typically controls the overall operation of the device 3000, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 3002 may include one or more processors 3020 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 3002 may include one or more modules that facilitate interaction between the processing component 3002 and other components. For example, the processing component 3002 may include a multimedia module to facilitate interaction between the multimedia component 3008 and the processing component 3002.

The memory 3004 is configured to store various types of data to support operations at the device 3000. Examples of such data include instructions for any application or method operating on device 3000, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 3004 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

The power supply component 3006 provides power to the various components of the device 3000. The power components 3006 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 3000.

The multimedia component 3008 includes a screen that provides an output interface between the device 3000 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, multimedia component 3008 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 3000 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 3010 is configured to output and/or input an audio signal. For example, the audio component 3010 may include a Microphone (MIC) configured to receive external audio signals when the apparatus 3000 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may further be stored in the memory 3004 or transmitted via the communication component 3016. In some embodiments, the audio component 3010 further includes a speaker for outputting audio signals.

I/O interface 3012 provides an interface between processing component 3002 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor component 3014 includes one or more sensors for providing status assessment of various aspects to the device 3000. For example, the sensor component 3014 can detect the open/closed status of the device 3000, the relative positioning of components, such as a display and keypad of the device 3000, the sensor component 3014 can also detect a change in the position of the device 3000 or a component of the device 3000, the presence or absence of user contact with the device 3000, orientation or acceleration/deceleration of the device 3000, and a change in the temperature of the device 3000. The sensor assembly 3014 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 3014 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 3014 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 3016 is configured to facilitate wired or wireless communication between the apparatus 3000 and other devices. Device 3000 may access a wireless network based on a communication standard, such as Wi-Fi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 3016 receives a broadcast signal or broadcast associated information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 3016 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 3000 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.

In an exemplary embodiment, a non-transitory computer readable storage medium comprising instructions, such as the memory 3004 comprising instructions, executable by the processor 3020 of the apparatus 3000 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the embodiments of the invention following, in general, the principles of the embodiments of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the embodiments of the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of embodiments of the invention being indicated by the following claims.

It is to be understood that the embodiments of the present invention are not limited to the precise arrangements described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of embodiments of the invention is limited only by the appended claims.

Claims

1. An information transmission method, wherein the information transmission method is executed by a terminal, the method comprising:

2. The method of claim 1, wherein the power indication information comprises one of:

3. The method according to any one of claims 1 or 2,

the power indication information is further used for indicating the transmission power of each frequency band supported by the terminal in the multi-carrier system.

4. The method of claim 1 or 2,

the power indication information is further used to indicate the first type power level or the second type power level of the transmission power of each frequency band supported by the terminal in the multi-carrier system.

5. An information transmission method, wherein the information transmission method is executed by a base station, the method comprises the following steps:

6. The method of claim 5, wherein the power indication information comprises one of:

7. The method of claim 6, wherein the method further comprises:

and in response to that the power indication information comprises the second indication or the third indication, linearly overlapping the transmission power on the N frequency bands supported by the terminal to obtain the maximum overlapping transmission power.

8. The method according to any one of claims 5 to 7,

9. The method according to any one of claims 5 to 7,

the power indication information is further used for indicating the first type power level or the second type power level of the transmission power of each frequency band supported by the terminal in the multi-carrier system.

10. An information transmission apparatus, wherein the apparatus comprises:

11. The apparatus of claim 10, wherein the power indication information comprises one of:

12. The apparatus of any one of claims 10 or 11,

13. The apparatus of claim 10 or 11,

the power indication information is used for indicating the first type power level or the second type power level of the transmission power of each frequency band supported by the terminal in the multi-carrier system.

14. An information transmission apparatus, wherein the apparatus comprises:

15. The apparatus of claim 14, wherein the power indication information comprises one of:

16. The apparatus of claim 15, wherein the apparatus further comprises:

and the determining module is used for linearly overlapping the transmitting power on the N frequency bands supported by the terminal in response to the power indication information including the second indication or the third indication to obtain the maximum overlapping transmitting power.

17. The apparatus of any one of claims 14 to 16,

18. The apparatus of any one of claims 14 to 16,

19. A communication device apparatus comprising a processor, a memory and an executable program stored on the memory and executable by the processor, wherein the processor executes the executable program to perform the steps of the information transmission method according to any one of claims 1 to 4 or 5 to 9.

20. A storage medium having stored thereon an executable program, wherein the executable program when executed by a processor implements the steps of the information transmission method according to any one of claims 1 to 4 or 5 to 9.