JP7082222B2 - Data transmission method and its terminal device - Google Patents

Description

Embodiments of the present invention relate to the field of communication, more specifically, data transmission methods and terminal devices thereof.

In recent years, with the development of intelligent technology, technologies such as intelligent transportation and unmanned driving have attracted more attention. The technology and standards of the Internet of Vehicles are crucial to the development of the aforementioned industries. According to the Internet of Vehicle Technology, Vehicle to Vehicle (V2X) communication is Vehicle to Vehicle (V2V) communication, Vehicle to Infrastructure, Includes V2I) communications, Vehicle to Pedestrian (V2P) communications, Pedestrian to Vehicle (P2V) communications, and the like. The basic problem in V2X communication is how to achieve efficient communication between the vehicle and various devices in various complex environments, especially how to improve communication reliability and communication delay. Is it to reduce?

The 3rd Generation Partnership Project (3GPP) recommends that the Internet of Vehicles be studied based on existing Device to Device (D2D) protocols. However, in the existing D2D protocol, the control and data information used for V2X communication is transmitted at different times, resulting in additional delay. In V2X communication studies, it is recommended that control and data information be transmitted within the same subframe to reduce delay. However, this raises a new issue of how to allocate transmit power between the control channel and the data channel of V2X communication.

One embodiment of the present invention provides a data transmission method for effectively allocating transmission power for control information and data information.

According to the first aspect, a data transmission method is provided in which the user equipment UE obtains the maximum transmission power and the UE obtains the maximum transmission power and the data channel based on the first parameter. In determining the transmit power and / or the transmit power of the control channel, the first parameter is at least one of the bandwidth of the data channel, the bandwidth of the control channel, or the carrier type of the carrier of the first link. Includes one, determining, and transmitting the control and data channels by the UE within the same subframe.

Therefore, in this embodiment of the present invention, when the data channel and the control channel are transmitted in the same subframe, the transmission power of the data channel and the transmission power of the control channel are the maximum transmission power, the bandwidth of the data channel, and the control. It can be determined based on the bandwidth of the channel, or at least one of the carrier types of the carriers of the first link, and appropriately determines the transmission power of control information and data.

With reference to the first aspect, in the first possible embodiment of the first aspect, the UE causes the transmit power of the data channel and / or the transmit power of the control channel based on the maximum transmit power and the first parameter. To determine the power ratio based on the proportional relationship between the first power and the maximum transmission power, the first power is the second power of the data channel and the third of the control channel. The second power is determined based on the bandwidth of the data channel and / or the bandwidth of the control channel contained in the first parameter, and the third power is in the first parameter. Determining, determining based on the bandwidth of the included data channel and / or the bandwidth of the control channel, and determining the transmit power of the control channel and / or the transmit power of the data channel based on the magnification. including.

Therefore, this embodiment of the present invention can provide a transmission power allocation method for data channels and control channels transmitted within the same subframe, and is a power allocation method used when the maximum transmission power is limited. I will provide a.

With reference to the first aspect and the aforementioned embodiment of the first aspect, in the second possible embodiment of the first aspect, the power is based on the proportional relationship between the first power and the maximum transmit power. Determining the magnification includes determining the ratio of the maximum transmitted power to the first power and determining the smaller of the ratio and 1 as the value of the magnification.

With reference to the first aspect and the aforementioned embodiment of the first aspect, in the third possible embodiment of the first aspect, the transmission power of the control channel and / or the transmission of the data channel is based on the power multiplier. Determining the power uses the product of the power multiplier and the second power as the transmit power of the data channel and / or the product of the power multiplier and the third power as the transmit power of the control channel. Including to use.

In a fourth possible embodiment of the first aspect, with reference to the first embodiment and the aforementioned embodiment of the first aspect, the first parameter is the transmit bandwidth of the control channel and the transmit bandwidth of the data channel. Determining the transmit power of the data channel and / or the transmit power of the control channel based on the maximum transmit power and / or the first parameter by the UE, including the width, is whether the first power is greater than the maximum transmit power. The first power is the sum of the second power of the data channel and the third power of the control channel, the first power is greater than the maximum transmit power. When determining the transmit power of a data channel based on the maximum transmit power, the transmit bandwidth of the control channel, and the transmit bandwidth of the data channel, and / or the maximum transmit power, the transmit bandwidth of the control channel, and the data channel. To determine the transmit power of the control channel based on the transmit bandwidth of the data channel, or to determine the transmit power of the control channel based on the transmit power of the data channel, the transmit bandwidth of the control channel, and the transmit bandwidth of the data channel. ,including.

With reference to the first aspect and the aforementioned embodiment of the first aspect, in a fifth possible embodiment of the first aspect, the UE is responsible for the maximum transmit power and the data channel based on the first parameter. Determining the transmit power and / or the transmit power of the control channel is to determine the transmit power of the control channel and / or the transmit power of the data channel based on the sum of the maximum transmit power and the first additional item. , The first additional item includes determining, which is determined based on the bandwidth of the control channel and the bandwidth of the data channel.

With reference to the first embodiment and the above-described embodiment of the first aspect, in the sixth possible embodiment of the first aspect, by the UE, the data channel is based on the maximum transmission power and the first parameter. Determining the transmit power and / or the transmit power of the control channel is determining whether the first power is greater than the maximum transmit power, the first power being the second power of the data channel. Determine, which is the sum of the third power of the control channel, and when the first power is greater than the maximum power, determine the transmit power of the data channel based on the magnification and the second power, the magnification and The determination of the transmission power of the control channel based on the third power, comprising determining that the multiplier is less than or equal to the ratio of the maximum transmission power to the first power.

In a seventh possible embodiment of the first aspect, with reference to the first embodiment and the aforementioned embodiment of the first aspect, the maximum transmit power is the maximum transmit power or the maximum available transmit power of the UE. Set to maximum transmit or maximum available transmit power on all carriers in the uplink subframe, maximum transmit or available transmit power on the current carrier in the subframe, control channel or data channel, Alternatively, it is one of the maximum transmission power shown and the maximum transmission power value set by the base station or the predetermined maximum transmission power value.

With reference to the first aspect and the aforementioned embodiment of the first aspect, in the eighth possible embodiment of the first aspect, by the UE, the data channel is based on the maximum transmit power and the first parameter. Before determining the transmit power and the transmit power of the control channel, the method further
It involves determining that the carrier of the first link is the carrier of the first type.

When the carrier of the first link is determined to be a carrier of the first type, any one of the first embodiment or the first to seventh possible embodiments of the first aspect is performed. Please understand.

In a ninth possible embodiment of the first aspect, the first parameter comprises the carrier type of the carrier of the first link, with reference to the first aspect and the aforementioned embodiment of the first aspect. Determining the transmit power of the data channel and the transmit power of the control channel based on the maximum transmit power and the first parameter by the UE is that when the carrier of the first link is the carrier of the second type, the data channel. To determine the maximum transmit power of a data channel and / or to determine the transmit power of a control channel based on the transmit power of the data channel, the bandwidth of the data channel, and the bandwidth of the control channel. Alternatively, the maximum transmission power of the control channel includes determining the maximum transmission power of the control channel.

In a tenth possible embodiment of the first aspect, the carrier of the first type is the carrier of the first link, with reference to the first embodiment and the above-described embodiment of the first aspect. Includes a link and a second link, the carrier of the first link contains a reference signal used to determine power control parameters, the carrier type of the first link is based on instructional information. It is determined based on at least one of the characteristics of being determined to be one type of carrier or containing instructional information for determining the transmit power parameter of the carrier of the first link.

In the eleventh possible embodiment of the first aspect, the carrier of the second type is the carrier of the first link, with reference to the first embodiment and the above-described embodiment of the first aspect. It contains only the transmission of the first link, the carrier of the first link does not contain the reference signal used to determine the power control parameters, and the instructional information for determining the transmission power parameters of the carrier of the first link. It is determined based on at least one of the characteristics of not being included or that the type of carrier of the first link is determined to be the carrier of the second type based on the instructional information.

In a twelfth possible embodiment of the first aspect, the second power value of the data channel is the path loss between the UE and the serving cell, with reference to the first aspect and the aforementioned embodiment of the first aspect. The power value determined based on, or the second power value of the data channel is the smaller of the maximum power value in the data channel and the power value determined based on the path loss between the UE and the serving cell. Whichever value, or the third power of the control channel, is the power value of the control channel, which is determined based on the path loss between the UE and the serving cell, or the third power of the control channel is of the data channel. A power value that is determined based on the power value and the bandwidth of the data channel and control channel, or the third power value of the control channel is between the maximum power value in the data channel and the UE and the serving cell. It is the smaller value of the power value of the data channel determined based on the path loss of.

According to the second aspect, there is provided a terminal device configured to perform the method of the first aspect or any possible embodiment of the first aspect. Specifically, the terminal device includes a unit for performing the method in any possible embodiment of the first aspect or the first aspect.

According to a third aspect, a device is provided, the device including a transceiver, a memory, a processor, and a bus system. Transceivers, memory, and processors are connected by using a bus system, the memory is configured to store instructions, and the processor executes the instructions stored in the memory to receive and / or send signals. Is configured to control the transceiver. When the processor executes the instructions stored in memory, the processor performs the method in the first aspect or any possible embodiment of the first aspect.

According to the fourth aspect, the computer program product is provided, and the computer program product includes the computer program code. When the computer program code is executed by the receiver, processor, and transmitter of the receiver unit, processing unit, and transmitter unit, or terminal device, the terminal device is optional in the first embodiment and the first embodiment. Execute the data transmission method of.

According to a fifth aspect, a computer-readable storage medium is provided, the computer-readable storage medium stores the program, and the program is an arbitrary data transmission method in which the user equipment has the first aspect and the first embodiment. Allows you to run.

In order to more clearly illustrate the technical solutions in embodiments of the invention, the following will briefly describe the accompanying drawings required to illustrate embodiments of the invention. Obviously, the accompanying drawings in the following description show only some embodiments of the present invention, and one of ordinary skill in the art can further derive another drawing from these attached drawings without any creative effort. You can do it.

It is a schematic diagram of the V2V communication scenario by one Embodiment of this invention. It is a schematic diagram of the application scenario by one Embodiment of this invention. It is another schematic diagram of the application scenario by one Embodiment of this invention. It is another schematic diagram of the application scenario by one Embodiment of this invention. It is a schematic diagram which shows that SA and data are in the same subframe by one Embodiment of this invention. It is a flowchart of the method for determining the transmission power by one Embodiment of this invention. It is a schematic block diagram of the terminal device by one Embodiment of this invention. It is a schematic block diagram of the apparatus by one Embodiment of this invention.

Hereinafter, technical solutions in embodiments of the invention will be described clearly and completely with reference to the accompanying drawings of embodiments of the invention. Obviously, the embodiments described are part, but not all, of the embodiments of the present invention. All other embodiments obtained by one of ordinary skill in the art based on embodiments of the invention without creative effort shall fall within the scope of protection of the invention.

FIG. 1 is a schematic diagram of a V2V communication scenario according to an embodiment of the present invention. FIG. 1 is a schematic diagram of communication between four vehicles on a lane.

In V2V communication, assisted driving and autonomous driving may be carried out via wireless communication between multiple on-board units (OBUs), thereby effectively improving traffic efficiency and traffic accidents. And reduce driving risk.

2 and 3 are schematic views of an application scenario according to an embodiment of the present invention. In FIGS. 2 and 3, the UE 20 can communicate directly with the base station 10, and the UE 20 may be referred to as a relay UE. The UE 30 may not be able to communicate directly with the base station 10, but since the UE 30 can communicate with the UE 20, the UE 30 can carry out communication with the base station 10 by using the UE 20. The UE 30 is sometimes referred to as a remote UE.

In FIG. 2, the communication distance between the UE 20 and the UE 30 capable of communicating with the UE 20 is relatively short, for example, about 10 meters (m). In FIG. 3, the communication distance between the UE 20 and the UE 30 capable of communicating with the UE 20 is relatively long, for example, about 100 m to 1000 m.

FIG. 4 is a schematic diagram of an actual application scenario according to an embodiment of the present invention based on the schematic scenarios of FIGS. 2 and 3. The evolved node B (eNB) in FIG. 4 corresponds to the base station 10 in FIGS. 2 and 3. The Road Side Unit (RSU), UE1, UE2, and UE3 in FIG. 4 can be UE20 and UE30 in FIGS. 2 and 3. For example, the RSU is a UE 20 and can communicate directly with the eNB. UE1, UE2, and UE3 are UE30 and can communicate with the eNB by using the RSU. Additionally, FIG. 4 further shows a Global Navigation Satellite System (GNSS), which can be used to provide information such as location information to another network element.

The RSU may function as a vehicle device or may function as an eNB. UE1, UE2, and UE3 may be vehicle devices and may use a sidelink to perform V2V communication with each other. Vehicle devices move at high speed with the vehicle. For example, the relative moving speed is greatest when UE1 and UE2 move relative to each other.

The device shown in FIG. 4 may use a cellular link spectrum during communication or may use an intelligent transportation spectrum near 5.9 GHz. The technique for intercommunication between devices may be enhanced based on the LTE protocol or may be enhanced by using the D2D technique.

In this embodiment of the invention, the side link can be a communication link between UEs. Side links are also referred to as D2D links in D2D communication, or PC5 links in some other scenarios. In the Internet of Vehicles, side links may also be referred to as V2V links, Vehicle to Infrastructure (V2I) links, Vehicle to Pedestrian (V2P) links, and the like. Sidelinks may send information in one of the following formats: That is, broadcast, unicast, multicast, and groupcast. The side link may use the spectrum of the cellular link, for example the uplink spectrum of the cellular link.

In this embodiment of the invention, the UE may also be referred to as a terminal and may include an OBU on the vehicle, a roadside RSU, a mobile phone used by a pedestrian, and the like.

In V2V communication, as shown in FIG. 5, it is recommended that control information (for example, SA) and data (Data) be transmitted within the same subframe. In FIG. 5A, the SA and data are in non-adjacent frequency domain positions within the same subframe. In FIG. 5B, the SA and data are in adjacent frequency domain positions within the same subframe. In other words, the frequency domain positions of SA and data may or may not be adjacent. Additionally, the SA may be carried on an independent physical channel, such as a Physical Sidelink Control Channel (PSCCH). Alternatively, the SA and data may be carried on the same physical channel, such as a Physical Sidelink Shared channel (PSSCH).

In the Rel-12 D2D protocol, the channel carrying the SA is also called the PSCCH channel, which is used to transmit control information between UEs. The control information is used to show the receiver parameter information such as the position of the time frequency resource, the resource size, and the Modulation and Coding Scheme (MCS) value for transmitting the data portion. In D2D of Rel-12, SA and data are transmitted in different subframes, so the transmission power of SA and data can be set separately in the corresponding subframes.

It should be noted that in current LTE systems, the duration occupied by one subframe is generally 1 millisecond (ms), but the duration of one subframe is not limited in this embodiment of the invention. .. Specifically, in this embodiment of the invention, the duration of one subframe may be the most basic duration occupied by one transmission, and the duration of one subframe is predetermined. May be the duration. For example, the duration of one subframe may be 1 ms, 2 ms, 10 ms, etc., longer than 1 ms, or 0.625 ms, 0.125 ms, 0.2 ms, etc., shorter than 1 ms. ..

Parallel transmission of SA and data is based on a multi-carrier system. In the case of a transmitter, the total available transmission power within one subframe is fixed. For example, the total available transmit power does not exceed the maximum transmit power of the UE. In scenarios where the SA and data are transmitted within the same subframe, when the base station instructs the user equipment (User Equipment, UE) to use the maximum transmit power, if the maximum transmit power is used for the SA. There is no transmit power available for the data. The reverse is also true.

This embodiment of the invention determines how the transmit power of the data and control channels is determined when the UE needs to transmit SA and data within the same subframe, in particular the UE determines the maximum transmit power. It aims to solve the problem of how to determine the transmit power for control information and data when used.

The first link indicates a communication link between UEs and may be a D2D link, a V2X link, a side link, or the like. For example, the first link may be the link between UE 20 and UE 30 in FIG. 2 or FIG. 3, or the link between RSU and UE 3 in FIG. Communication on the first link can be performed by any of the following methods. That is, unicast, group cast, and broadcast.

The second link indicates a communication link between the UE and the base station and can be a cellular link. For example, the second link may be the link between the UE 20 / UE 30 and the base station 10 in FIG. 2 or 3, or the link between the RSU and the eNB in FIG.

The relay UE indicates a UE that can communicate directly with the base station and can transfer data from another UE to the base station. For example, the relay UE may be the UE 20 in FIG. 2 or 3, or the RSU in FIG.

The remote UE indicates a UE that may not be able to communicate directly with the base station, but can communicate with the base station by using a relay UE. For example, the remote UE may be the UE 30 in FIG. 2 or FIG. 3, or the UE 1, UE 2, or UE 3 in FIG.

FIG. 6 is a schematic flowchart of the method according to the embodiment of the present invention. The method is performed by the UE, which may be the aforementioned relay UE or the aforementioned remote UE. As shown in FIG. 6, the method 600 includes the following steps.

Step 610. The user equipment UE acquires the maximum transmission power of the first link.

Step 620. The UE determines the transmit power of the data channel and / or the transmit power of the control channel based on the maximum transmit power and the first parameter.

The first parameter comprises at least one of the following: the bandwidth of the data channel, the bandwidth of the control channel, or the carrier type of the carrier of the first link.

Step 630. The UE transmits the control channel and the data channel within the same subframe.

In step 610, the maximum transmit power of the first link is the threshold of the allowable transmit power of the first link. No matter how the UE allocates the transmit power of the control channel and the data channel, the sum of the transmit power of the control channel and the transmit power of the data channel should not exceed the maximum allowable transmit power of the first link.

として表され、以下の意味のうちのいずれかを有する。すなわち、
ＵＥ側での最大送信電力又は最大利用可能送信電力、
現在のサブフレーム内のすべてのキャリアでの最大送信電力又は最大利用可能送信電力、
現在のサブフレーム内の現在のキャリアでの最大送信電力又は最大利用可能送信電力、若しくは
ＵＥの最大送信電力レベル、又は
第１の最大送信電力は、基地局によって設定される最大送信電力によって示される最大送信電力値、又はあらかじめ定められた最大送信電力値であり得る。 The maximum transmission power is _{PCMAX, c} or

It is expressed as and has one of the following meanings. That is,
Maximum transmit power or maximum available transmit power on the UE side,
Maximum transmit power or maximum available transmit power on all carriers in the current subframe,
The maximum transmit power or maximum available transmit power of the current carrier in the current subframe, or the maximum transmit power level of the UE, or the first maximum transmit power, is indicated by the maximum transmit power set by the base station. It can be the maximum transmit power value or a predetermined maximum transmit power value.

、Ｐ_ＣＭＡＸ、Ｐ_ＭＡＸ、Ｐ_ＵＭＡＸ、Ｐ_ＥＭＡＸ、Ｐ－ＭＡＸ等として表されてよい。これは本発明において限定されない。 The maximum transmission power is _{PCMAX, c} ,

, P _CMAX , P _MAX , P _UMAX , P _EMAX , P-MAX and the like. This is not limited in the present invention.

The maximum transmit power may be predetermined, may be set by using signaling, may be common within the cell, or may be user-specific. This is not limited in the present invention.

は最大送信電力を表す線形値、Ｐ_{ＣＭＡＸ，ｃ}は最大送信電力を表す対数値である。本発明では、電力を表す別のパラメータｘに対して、

はパラメータｘの線形値を表すのに使用され、ｘはパラメータｘの対数値を表す。 It should be noted that the value of the transmission power described in this embodiment of the present invention is expressed using a logarithmic value (unit can be dBm) or a linear value (unit can be milliwatt mW, watt W). Please note that there may be cases. That is, the value may be a value for a single frequency domain transmit resource (such as 1PRB) or a value for the entire transmit bandwidth. Similarly, the power described in subsequent embodiments of the invention can be determined to be logarithmic or linear based on the unit of power. for example,

Is a linear value representing the maximum transmission power, and _{PCMAX, c} is a logarithmic value representing the maximum transmission power. In the present invention, for another parameter x representing electric power,

Is used to represent the linear value of the parameter x, where x represents the logarithmic value of the parameter x.

It should be understood that the method for the UE to obtain the maximum transmit power involves obtaining a linear or logarithmic value of the maximum transmit power. This is not limited in the present invention.

In step 620, the first parameter includes the carrier type of the carrier of the first link, and the carrier type may be the first carrier type or the second carrier type.

Optionally, the first type of carrier is determined based on at least one of the following characteristics: That is, the carrier of the first link contains the first link and the second link, the carrier of the first link contains the reference signal used to determine the power control parameters, the first link. The type of carrier is determined to be the carrier of the first type based on the instruction information, or the instruction information for determining the transmission power parameter of the carrier of the first link is included.

Optionally, the second type of carrier is determined based on at least one of the following characteristics: That is, the carrier of the first link contains only the first link, the carrier of the first link does not contain the reference signal used to determine the power control parameters, that of the carrier of the first link. No instructional information is included to determine the transmit power parameter, or the carrier type of the first link is determined to be the second type of carrier based on the instructional information.

The reference signals used to determine the power control parameters are CRS (Cell-Specific Reference Signal), CSI-RS (channel state information reference signal), DMRS (Demodulation reference). It should be understood that it can be any one or more of the signal, demodulation reference signal) and the like. This is not limited in the present invention.

Further, the bandwidth of the data channel included in the first parameter is the transmission bandwidth of data transmission on the data channel, and the bandwidth of the control channel is the transmission bandwidth for data transmission on the control channel. I want you to understand.

After the transmit power of the data channel and / or the transmit power of the control channel is determined based on the maximum transmit power and the first parameter, the data channel and control channel are the transmit power of the determined data channel and / or the control channel. Each is transmitted within the same subframe based on the transmission power of.

Therefore, in this embodiment of the present invention, when the data channel and the control channel are transmitted in the same subframe, the transmission power of the data channel and the transmission power of the control channel are the maximum transmission power, the bandwidth of the data channel, and the control. It can be determined based on the bandwidth of the channel, or at least one of the carrier types of the carriers of the first link, and appropriately determines the transmission power of control information and data.

Optionally, in one embodiment of the invention, the UE determines the transmit power of the data channel and / or the transmit power of the control channel based on the maximum transmit power and the first parameter. In determining the power multiplier based on the proportional relationship between the maximum transmit powers, the first power is the sum of the second power of the data channel and the third power of the control channel, the second. The power of is determined based on the bandwidth of the data channel and / or the bandwidth of the control channel contained in the first parameter, and the third power is the bandwidth of the data channel included in the first parameter and / or. Alternatively, it includes determining, which is determined based on the bandwidth of the control channel, and determining the transmission power of the control channel and the transmission power of the data channel based on the magnification.

Optionally, in one embodiment of the invention, the second power value of the data channel is a power value determined based on the path loss between the UE and the serving cell, or the second power value of the data channel is. , The smaller of the maximum power value in the data channel and the power value determined based on the path loss between the UE and the serving cell, or the second power in the control channel is the power in the control channel. The power value determined based on the value and the bandwidth of the data channel and the control channel, or the second power of the control channel is the power of the control channel determined based on the path loss between the UE and the serving cell. The value, or the third power of the control channel, is the power value determined based on the power value of the data channel and the bandwidth of the data channel and the control channel, or the third power value of the control channel. Is the smaller of the maximum power value in the data channel and the power value of the data channel determined based on the path loss between the UE and the serving cell.

Optionally, the control channel is assumed to be the PSCCH channel and the data channel is assumed to be the PSCH channel. The third power is represented as P _{PSCCH_0} and the second power is represented as P _{PSCH_0} .

［ｄＢｍ］である。 In mode 3, the transmission power _PPSSCH of the data channel is determined based on the smaller of the maximum power value in the service channel and the transmission power value determined based on the path loss, and the following equation is used. Expressed using. That is,

[DBm].

［ｄＢｍ］、又は

［ｄＢｍ］である。ここで、ａはあらかじめ定められた定数である。例えば、ａは、－３、０、又は３であり得る。これは、本明細書において限定されない。 In mode 3, the transmission power _PPSCCH of the control channel is determined based on the power value of the data channel and the bandwidth value of the control channel and the service channel, and is expressed using the following equation. That is,

[DBm] or

[DBm]. Here, a is a predetermined constant. For example, a can be -3, 0, or 3. This is not limited herein.

［ｄＢｍ］である。 In mode 4, the transmission power _PPSSCH of the data channel is determined based on the smaller of the maximum power value in the data channel and the transmission power value determined based on the path loss, and the following equation is used. Expressed using. That is,

[DBm].

［ｄＢｍ］、又は

［ｄＢｍ］である。ここで、ｂはあらかじめ定められた定数である。例えば、ｂは、－３、０、又は３であり得る。これは、本明細書において限定されない。 In mode 4, the transmission power _PPSCCH of the control channel is determined based on the power value of the data channel and the bandwidth value of the control channel and the data channel, and is expressed using the following equation. That is,

[DBm] or

[DBm]. Here, b is a predetermined constant. For example, b can be -3, 0, or 3. This is not limited herein.

In the present specification, the calculated third power _PPSCH and the second power _PPSSCH can be logarithmic power values.

In the above equation, M _PSCCH indicates the transmission bandwidth of the PSCCH channel, M _PSCCH indicates the transmission bandwidth of the PSCH channel.
PL indicates the value of path loss between the UE and the serving base station.
α _{PSCCH, 3} and α _{PSCH, 3} indicate the path loss compensation coefficients of the PSCCH channel and the PSCH channel in mode 3, respectively.
α _{PSCCH, 4} and α _{PSCH, 4} indicate the path loss compensation coefficients of the PSCCH channel and the PSCH channel in mode 4, respectively.
_{Po_PSCCH, 3} and _{Po_PSSCH, 3} indicate two power parameter values set by the serving base station or predetermined in mode 3.
_{Po_PSCCH, 4} and _{Po_PSSCH, 4} indicate two power parameter values set by the serving base station or predetermined in mode 4.

The PL may be notified to the UE in the form of signaling after being determined by the serving base station, or may be determined by the UE. See prior art for how to calculate the path loss value. Details are not described herein.

In mode 3, α _{PSCCH, 3} , α _{PSCH, 3} , _{Po_PSCCH, 3} and _{Po_PSSCH, 3} may be notified to the UE in the form of signaling by the serving base station, or may be predetermined. For example, the configuration information transmitted by the serving base station prior to S610 includes the values of α PSCCH _{, 3} , α _{PSCH, 3} , _{Po_PSCCH, 3} , and _{Po_PSSCH, 3} . In mode 4, the method is similar to that of mode 3, and the details are not repeated herein.

As used herein, the transmission mode 3 and the transmission mode 4 are different transmission modes in the first link. For example, the transmission mode may correspond to transmission on the first link based on scheduling by the base station or transmission on the first link based on resource selection by the UE.

Optionally, in one embodiment of the invention, determining the power ratio based on the proportional relationship between the first power and the maximum transmit power determines the ratio of the maximum transmit power to the first power. And to determine the smaller value of the ratio and 1 as the value of the magnification.

として表され得る。 If, optionally, the ratio of the maximum transmit power to the first power is expressed as the ratio of the maximum transmit power to the first transmit power, the ratio is:

Can be expressed as.

である。 Arbitrarily, the magnification w is determined according to the following equation. That is,

Is.

Optionally, in one embodiment of the invention, determining the transmit power of the control channel and / or the transmit power of the data channel based on the power multiplier is a power multiplier and a second power as the transmit power of the data channel. Includes using the product of the power multiplier and the third power as the transmit power of the control channel.

、及び

である。 Optionally, the transmit power of the data channel is obtained by multiplying the multiplier by the linear value of the second power, and the transmit power of the control channel is the multiplier multiplied by the linear value of the third power. Obtained by. For example, the transmission power of the data channel and the transmission power of the control channel are determined according to the following equations. That is,

,as well as

Is.

は、データチャネルの送信電力の線形値を示し、

は、制御チャネルの送信電力の線形値を示し、

は、データチャネルの第２の電力の線形値を示し、

は、制御チャネルの第３の電力の線形値を示す。 In the above equation, w indicates the magnification,

Shows a linear value of the transmit power of the data channel,

Shows a linear value of the transmit power of the control channel,

Shows the linear value of the second power of the data channel,

Indicates a linear value of the third power of the control channel.

Optionally, in one embodiment of the invention, the method further comprises determining the transmit power of the data channel and the transmit power of the control channel based on the maximum transmit power and the first parameter by the UE. It comprises determining that the carrier of one link is a carrier of the first type or a carrier of the second type.

When the carrier of the first link is the carrier of the first type, the UE determines the transmit power of the data channel and the transmit power of the control channel based on the maximum transmit power and the first parameter.

In other words, when the carrier of the first link is determined to be the carrier of the first type, according to the method described in the above embodiment, the UE will perform data based on the maximum transmit power and the first parameter. The transmit power of the channel and the transmit power of the control channel may be determined.

Optionally, in one embodiment of the invention, the carrier type of the second type, the first parameter comprises the carrier type of the carrier of the first link, and the maximum transmit power and the first parameter by the UE. Based on this, the transmission power of the data channel and the transmission power of the control channel are determined by using the maximum transmission power of the data channel as the transmission power of the data channel when the carrier of the first link is the carrier of the second type. Determining and determining the transmit power of the control channel based on the transmit power of the data channel, the bandwidth of the data channel, and the bandwidth of the control channel, or the maximum transmit power of the control channel is the maximum transmit power of the control channel. Includes determining as transmit power.

［ｄＢｍ］である。 Optionally, in mode 3 and mode 4, the data channel transmit power _PPSSCH is determined based on the maximum transmit power in the data channel and is expressed using the following equation. That is,

[DBm].

［ｄＢｍ］である。ここで、ａは定数である。例えば、ａは０、３、６、又は－３であり得る。これは本明細書において限定されない。 In modes 3 and 4, the transmission power _PPSCCH of the control channel is determined based on the power value of the data channel and the bandwidth value of the control channel and the data channel, and is expressed using, for example, the following equation. .. That is,

[DBm]. Here, a is a constant. For example, a can be 0, 3, 6, or -3. This is not limited herein.

［ｄＢｍ］である。 Alternatively, optionally, in mode 3 and mode 4, the transmission power _PPSCCH of the control channel is determined based on the maximum transmission power of the control channel and is expressed, for example, using the following equation. That is,

[DBm].

In the present specification, P _{CMAX, PSCCH} and P _{CMAX, PSCH} represent the value of the maximum transmission power in the PSCCH and PSCH channels, respectively. These values may be predetermined, or may be set using signaling, and may be common within the cell or may be user-specific.

Optionally, in one embodiment of the invention, the first parameter comprises the transmit bandwidth of the control channel and the transmit bandwidth of the data channel, the data by the UE, based on the maximum transmit power and the first parameter. Determining the transmit power of the channel and the transmit power of the control channel is
To determine if the first power is greater than the maximum transmit power, where the first power is the sum of the second power of the data channel and the third power of the control channel. , And when the first power is greater than the maximum transmit power, determine the transmit power of the data channel based on the maximum transmit power, the transmit bandwidth of the control channel, and the transmit bandwidth of the data channel, and the maximum transmit. Determining the transmit power of the control channel based on the power, the transmit bandwidth of the control channel, and the transmit bandwidth of the data channel, or the transmit power of the data channel, the transmit bandwidth of the control channel, and the transmit bandwidth of the data channel. Includes determining the transmit power of the control channel based on the width.

である。 Optionally, the determinant is to determine if the sum of the linear values of the second power of the data channel and the third power of the control channel is less than the maximum transmit power value. for example,

Is.

If the above equation holds, it indicates that the transmit power does not exceed the maximum power value, otherwise it indicates that the transmit power exceeds the maximum transmit power.

If, optionally, the transmit power does not exceed the maximum power value, the transmit power of the data channel and control channel is determined by the following method.

［ｄＢｍ］である。 In mode 3, the transmission power _PPSSCH of the data channel is determined based on the smaller of the maximum power value in the service channel and the transmission power value determined based on the path loss, and the following equation is used. Expressed using. That is,

[DBm].

［ｄＢｍ］、又は

［ｄＢｍ］である。ここで、ａはあらかじめ定められた定数である。例えば、ａは、－３、０、又は３であり得る。これは、本明細書において限定されない。 In mode 3, the transmission power _PPSCCH of the control channel is determined based on the power value of the data channel and the bandwidth value of the control channel and the service channel, and is expressed using the following equation. That is,

[DBm] or

[DBm]. Here, a is a predetermined constant. For example, a can be -3, 0, or 3. This is not limited herein.

［ｄＢｍ］である。 In mode 4, the transmission power _PPSSCH of the data channel is determined based on the smaller of the maximum power value in the data channel and the transmission power value determined based on the path loss, and the following equation is used. Expressed using. That is,

[DBm].

［ｄＢｍ］、又は

［ｄＢｍ］である。ここで、ｂはあらかじめ定められた定数である。例えば、ｂは、－３、０、又は３であり得る。これは、本明細書において限定されない。 In mode 4, the transmission power _PPSCCH of the control channel is determined based on the power value of the data channel and the bandwidth value of the control channel and the data channel, and is expressed using the following equation. That is,

[DBm] or

[DBm]. Here, b is a predetermined constant. For example, b can be -3, 0, or 3. This is not limited herein.

In the present specification, the calculated transmission power _PPSCH of the control channel and the transmission power _PPSSCH of the data channel can be logarithmic power values.

Optionally, if the transmit power exceeds the maximum power value, the data channel is based on the maximum transmit power, the transmit bandwidth of the control channel, and the transmit bandwidth of the data channel when the first power is greater than the maximum transmit power. Determining the transmit power of a control channel based on the maximum transmit power, the transmit bandwidth of the control channel, and the transmit bandwidth of the data channel further
Determining the transmit power of the control channel and the transmit power of the data channel based on the sum of the maximum transmit power and the first additional item.
The first additional item includes determining, which is determined based on the bandwidth of the control channel and the bandwidth of the data channel.

、

、

、

、

、及び

である。 Specifically, in the case of a data channel, the first additional item may be represented in any one of the following formats: That is,

,

,

,

,

,as well as

Is.

It should be understood that the expression format of the first additional item is not limited to them.

、

、

、又は

である。ここで、ａ及びｂは負ではない整数である。 In general, the transmit power of a data channel, which is determined based on the sum of the maximum transmit power and the first additional item, can be expressed using the following equation. That is,

,

,

Or

Is. Here, a and b are non-negative integers.

、

、

、

、

、

、

、

、

、及び

である。ここで、ａとｂは正の整数である。 Optionally, the transmit power of the control channel, which is determined based on the sum of the maximum transmit power and the first additional item, can be expressed by using one of the following equations. That is,

,

,

,

,

,

,

,

,

,as well as

Is. Here, a and b are positive integers.

Optionally, in one embodiment of the invention, determining the transmit power of the data channel and / or the transmit power of the control channel by the UE based on the maximum transmit power and the first parameter is the first power. Is to determine if is greater than the maximum transmit power, the first power is the sum of the second power of the data channel and the third power of the control channel. When the power of is greater than the maximum transmit power, by determining the transmit power of the data channel based on the multiplier and the second power, and by determining the transmit power of the control channel based on the multiplier and the third power. There, the magnification comprises determining that it is less than or equal to the ratio of the maximum transmit power to the first power.

Optionally, in one embodiment of the invention, when the first transmit power is greater than the maximum transmit power, determining the transmit power of the data channel based on the magnification and the second power is the transmission of the data channel. Determining the transmission power of the control channel based on the magnification and the third power includes determining the product of the magnification and the second power as the power, as the transmission power of the control channel, the magnification and the second. Includes determining the product with the power of 3.

である。 Similarly, the criterion is to determine if the sum of the linear values of the second power of the data channel and the third power of the control channel is less than the maximum transmit power value. for example,

Is.

If the above equation holds, it indicates that the sum of the linear values of the second power of the data channel and the third power of the control channel does not exceed the maximum power value. Otherwise, it indicates that the transmit power exceeds the maximum transmit power.

If, optionally, the transmit power does not exceed the maximum power value, the transmit power of the data channel and control channel is determined by the following method.

［ｄＢｍ］である。 In mode 3, the transmission power _PPSSCH of the data channel is determined based on the smaller of the maximum power value in the service channel and the transmission power value determined based on the path loss, and the following equation is used. Expressed using. That is,

[DBm].

［ｄＢｍ］、又は

［ｄＢｍ］である。ここで、ａはあらかじめ定められた定数である。例えば、ａは、－３、０、又は３であり得る。これは、本明細書において限定されない。 In mode 3, the transmission power _PPSCCH of the control channel is determined based on the power value of the data channel and the bandwidth value of the control channel and the service channel, and is expressed using the following equation. That is,

[DBm] or

[DBm]. Here, a is a predetermined constant. For example, a can be -3, 0, or 3. This is not limited herein.

［ｄＢｍ］である。 In mode 4, the transmission power _PPSSCH of the data channel is determined based on the smaller of the maximum power value in the data channel and the transmission power value determined based on the path loss, and the following equation is used. Expressed using. That is,

[DBm].

［ｄＢｍ］、又は

［ｄＢｍ］である。ここで、ｂはあらかじめ定められた定数である。例えば、ｂは、－３、０、又は３であり得る。これは、本明細書において限定されない。 In mode 4, the transmission power _PPSCCH of the control channel is determined based on the power value of the data channel and the bandwidth value of the control channel and the data channel, and is expressed using the following equation. That is,

[DBm] or

[DBm]. Here, b is a predetermined constant. For example, b can be -3, 0, or 3. This is not limited herein.

In the present specification, the calculated transmission power _PPSCH of the control channel and the transmission power _PPSSCH of the data channel can be logarithmic power values.

である。ここで、０＜ｗ≦１である。 If, optionally, the sum of the linear values of the third power of the control channel and the second power of the data channel exceeds the maximum transmit power, w is determined by the following method. That is,

Is. Here, 0 <w ≦ 1.

、及び

である。 Optionally, the transmit power of the data channel and the transmit power of the control channel are determined according to the following equations.

,as well as

Is.

はデータチャネルの送信電力の線形値を示し、

は制御チャネルの送信電力の線形値を示し、

はデータチャネルの第２の電力の線形値を示し、

は制御チャネルの第３の電力の線形値を示す。 In the above equation, w (i) indicates the magnification.

Shows a linear value of the transmit power of the data channel

Shows a linear value of the transmit power of the control channel

Shows the linear value of the second power of the data channel,

Indicates a linear value of the third power of the control channel.

Optionally, in one embodiment of the invention, when the control channel and the data channel are not transmitted simultaneously in the same time domain resource, eg, in different subframes, the transmit power value is to the control channel and to the data channel. It is determined by the following method.

、及び

である。 Method 1: The transmission power values of the control channel and the data channel are set to the maximum transmission power values in the corresponding channels, respectively. for example,

,as well as

Is.

、及び

である。 Method 2: The data channel transmit power value is set to the maximum transmit power value in the corresponding channel, and the control channel transmit power value is set based on the data channel power value and the control channel and data channel bandwidth. Will be done. for example,

,as well as

Is.

In the above equation, Δ is a constant and methods 1 and 2 can be used for a first type carrier and / or a second type carrier, preferably a first type carrier. Applicable to.

As described above, the network slice management method and the network management architecture in the embodiment of the present invention have been described in detail with reference to FIGS. 1 to 6. Hereinafter, the terminal device according to the embodiment of the present invention will be described in detail with reference to FIGS. 7 and 8.

FIG. 7 is a block diagram of the structure of the terminal device according to the embodiment of the present invention. It should be appreciated that the terminal device 700 can perform the steps performed by the terminal device in the methods of FIGS. 1-6. Details are not described herein to avoid repetition. The terminal device 700 is
An acquisition unit 710 configured to acquire maximum transmit power,
A determination unit 720 configured to determine the transmit power of the data channel and / or the transmit power of the control channel based on the maximum transmit power and the first parameter.
The first parameter is the determination unit 720, which comprises at least one of the bandwidth of the data channel, the bandwidth of the control channel, or the carrier type of the carrier of the first link.
Includes a transmit unit 730 configured to transmit the control channel and the data channel within the same subframe.

Therefore, in this embodiment of the present invention, when the data channel and the control channel are transmitted in the same subframe, the transmission power of the data channel and the transmission power of the control channel are the maximum transmission power, the bandwidth of the data channel, and the control. It can be determined based on the bandwidth of the channel, or at least one of the carrier types of the carriers of the first link, and appropriately determines the transmission power of control information and data.

FIG. 8 is a schematic structural diagram of an apparatus according to an embodiment of the present invention. FIG. 8 shows the device 800 provided in this embodiment of the invention. It should be understood that the device 800 can perform the steps performed by the user equipment in the methods of FIGS. 1-6. Details are not described herein to avoid repetition. The device 800 is
Memory 810 configured to store programs,
Transceiver 820 configured to communicate with another device,
When the program is executed, the processor 830 further receives and / or transmits signals by using the transceiver 820, including a processor 830 configured to execute the program in memory 810, up to a maximum. Configured to obtain transmit power, the processor 830 is further configured to determine the transmit power of the data channel and / or the transmit power of the control channel based on the maximum transmit power and the first parameter. The parameters include at least one of the bandwidth of the data channel, the bandwidth of the control channel, or the carrier type of the carrier of the first link, and the transceiver 820 further includes the control channel and the data channel in the same subframe. Configured to send.

It should be understood that the device 800 may specifically be the user equipment in the embodiments described above and may be configured to perform steps and / or procedures corresponding to the user equipment in the embodiments of the method described above.

Therefore, in this embodiment of the present invention, when the data channel and the control channel are transmitted in the same subframe, the transmission power of the data channel and the transmission power of the control channel are the maximum transmission power, the bandwidth of the data channel, and the control. It can be determined based on the bandwidth of the channel, or at least one of the carrier types of the carriers of the first link, and appropriately determines the transmission power of control information and data.

It should be understood that the sequence numbers of the aforementioned processes do not mean execution sequences in various embodiments of the invention. The process execution sequence should be determined according to the function and internal logic of the process and should not be construed as any limitation to the implementation process of the embodiments of the present invention.

Those skilled in the art can perform the unit and algorithm steps in the examples described with reference to the embodiments disclosed herein by means of electronic hardware or a combination of computer software and electronic hardware. You may know that. Whether a function is performed in hardware or software depends on the design constraints of a particular application and technical solution. Those skilled in the art may use different methods to perform the functions described for each particular application, but such practices should not be considered beyond the scope of the invention.

For those skilled in the art, references are made to the corresponding processes in the embodiments of the aforementioned method for the detailed working processes of the aforementioned systems, devices, and units for the purposes of convenient and concise description. It will be clearly understood that the details are not repeated herein.

It should be understood that in some embodiments provided in this application, the disclosed systems, devices, and methods may be implemented in other ways. For example, the embodiments of the device described are merely examples. For example, the unit division is merely a logical functional division, and may be another division in actual implementation. For example, multiple units or components may be combined or integrated into different systems, or some features may be ignored or may not be implemented. Additionally, the interconnected or direct coupled or communication connections displayed or discussed may be performed by using several interfaces. Indirect coupling or communication connections between devices or units may be performed electronically, mechanically, or in other forms.

Units described as separate parts may or may not be physically separated, and the parts labeled as units may or may not be physical units and may be in one place. , May be distributed across multiple network units. In order to achieve the objectives of the solution of the embodiment, some or all of the units may be selected based on actual requirements.

Additionally, the functional units in the embodiments of the present invention may be integrated into one processing unit, each of the units may be physically independent, and two or more units may be combined into one unit. It may be integrated.

When a function is performed in the form of a software functional unit and sold or used as a stand-alone product, the function may be stored on a computer-readable storage medium. Based on such understanding, the technical solutions of the present invention may be implemented in the form of software products, in essence, or in parts that contribute to the prior art, or some technical solutions. The computer software product is stored on a storage medium and instructs the computer device (which may be a personal computer, server, network device, etc.) to perform all or part of the steps of the method described in embodiments of the present invention. Includes some instructions for. The above-mentioned storage medium can store program codes such as a USB flash drive, a removable hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk, and an optical disk. Includes any medium.

The above description is merely a specific practice of the invention and is not intended to limit the scope of protection of the invention. Any modifications or substitutions readily conceived by one of ordinary skill in the art within the technical scope disclosed in the present invention shall fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be in accordance with the scope of protection of the claims.

Claims (22)

A data transmission method for devices
The first parameter A is to be determined, where A is

Equal to M _PSCCH Indicates the bandwidth of the control channel, M _PSCH Indicates the bandwidth of the data channel, PL indicates the value of the path loss between the device and the base station, and α _PSCH Is set by the base station and P _{o_PSSCH} Is a value set or predetermined by the base station, and a is a predetermined constant.
A ≤ P _CMAX If, the transmission power P of the data channel is _PSCH Is to decide, P _CMAX Indicates the maximum transmission power,
P _PSCH teeth,

Equal to [dBm], to determine or
A> P _CMAX If, the transmission power P of the data channel _PSCH The first additional item and P _CMAX The first additional item is to determine based on the total of M. _PSCCH And M _PSCH To be decided based on
A method comprising transmitting the control channel and the data channel within the same subframe. The method of claim 1, wherein a is equal to -3, 0 or 3. A> P _CMAX If, the first additional item is

C is a predetermined constant, and P _PSCH teeth,

The method according to claim 1 or 2, which is [dBm]. The method according to any one of claims 1 to 3, wherein the control channel is a physical side link control channel (PSCCH), and the data channel is a physical side link shared channel (PSSCH). The maximum transmission power P _CMAX teeth,
Maximum transmission power or maximum available transmission power on the user device side,
Maximum transmit power or maximum available transmit power on all carriers in the subframe,
Maximum transmit power or maximum available transmit power on the carrier in the subframe,
Maximum transmission power level of user equipment, or
The method according to any one of claims 1 to 4, which is one of the maximum transmission powers set by a base station or set by a predetermined maximum transmission power value. A data transmission method for devices
The first parameter A is to be determined, where A is

Equal to M _PSCCH Indicates the bandwidth of the control channel, M _PSCH Indicates the bandwidth of the data channel, PL indicates the value of the path loss between the device and the base station, and α _PSCH Is set by the base station and P _{o_PSSCH} Is a value set or predetermined by the base station, and a is a predetermined constant.
A ≤ P _CMAX If, the transmission power P of the control channel _PSCCH Is to decide, P _CMAX Indicates the maximum transmission power,
P _PSCCH teeth,

Equal to [dBm], to determine or
A> P _CMAX If, the transmission power P of the control channel _PSCCH The second additional item and P _CMAX The second additional item is to determine based on the total of M. _PSCCH And M _PSCH To be decided based on
A method comprising transmitting the control channel and the data channel within the same subframe. The method of claim 6, wherein a is equal to -3, 0 or 3. A> P _CMAX If, the second additional item is

C is a predetermined constant, and P _PSCCH teeth,

The method according to claim 6 or 7, which is [dBm]. The method according to any one of claims 6 to 8, wherein the control channel is a physical side link control channel (PSCCH), and the data channel is a physical side link shared channel (PSSCH). The maximum transmission power P _CMAX teeth,
Maximum transmission power or maximum available transmission power on the user device side,
Maximum transmit power or maximum available transmit power on all carriers in the subframe,
Maximum transmit power or maximum available transmit power on the carrier in the subframe,
Maximum transmission power level of user equipment, or
The method according to any one of claims 6 to 9, which is one of the maximum transmission powers set by a base station or set by a predetermined maximum transmission power value. It ’s a device,
With the processor
It is coupled to the processor and stores program instructions for execution by the processor, and the program instructions are sent to the processor.
The first parameter A is to be determined, where A is

Equal to M _PSCCH Indicates the bandwidth of the control channel, M _PSCH Indicates the bandwidth of the data channel, PL indicates the value of the path loss between the device and the base station, and α _PSCH Is set by the base station and P _{o_PSSCH} Is a value set or predetermined by the base station, and a is a predetermined constant.
A ≤ P _CMAX If, the data channel transmission power P _PSCH Is to decide, P _CMAX Indicates the maximum transmission power,
P _PSCH teeth,

Equal to [dBm], to determine or
A> P _CMAX If, the transmission power P of the data channel _PSCH The first additional item and P _CMAX The first additional item is to determine based on the total of M. _PSCCH And M _PSCH To be decided based on
A device that controls and causes a transmitter to transmit the control channel and the data channel within the same subframe. 11. The device of claim 11, wherein a is equal to -3, 0 or 3. A> P _CMAX If, the first additional item is

C is a predetermined constant, and P _PSCH teeth,

The device according to claim 11 or 12, which is [dBm]. The device according to any one of claims 11 to 13, wherein the control channel is a physical side link control channel (PSCCH), and the data channel is a physical side link shared channel (PSSCH). The maximum transmission power P _CMAX teeth,
Maximum transmission power or maximum available transmission power on the user device side,
Maximum transmit power or maximum available transmit power on all carriers in the subframe,
Maximum transmit power or maximum available transmit power on the carrier in the subframe,
Maximum transmission power level of user equipment, or
The device according to any one of claims 11 to 14, which is one of the maximum transmission powers set by a base station or set by a predetermined maximum transmission power value. It ’s a device,
With at least one processor
Combined with the at least one processor, the program instructions for execution by the at least one processor are stored, and the program instructions are transmitted to the at least one processor.
The first parameter A is to be determined, where A is

Equal to M _PSCCH Indicates the bandwidth of the control channel, M _PSCH Indicates the bandwidth of the data channel, PL indicates the value of the path loss between the device and the base station, and α _PSCH Is set by the base station and P _{o_PSSCH} Is a value set or predetermined by the base station, and a is a predetermined constant.
A ≤ P _CMAX If, the transmission power P of the control channel _PSCCH Is to decide, P _CMAX Indicates the maximum transmission power,
P _PSCCH teeth,

Equal to [dBm], to determine or
A> P _CMAX If, the transmission power P of the control channel _PSCCH The second additional item and P _CMAX The second additional item is to determine based on the total of M. _PSCCH And M _PSCH To be decided based on
A device that controls and causes a transmitter to transmit the control channel and the data channel within the same subframe. 16. The device of claim 16, wherein a is equal to -3, 0 or 3. A> P _CMAX If, the second additional item is

C is a predetermined constant, and P _PSCCH teeth,

The device according to claim 16 or 17, which is [dBm]. The device according to any one of claims 16 to 18, wherein the control channel is a physical side link control channel (PSCCH), and the data channel is a physical side link shared channel (PSSCH). The maximum transmission power P _CMAX teeth,
Maximum transmission power or maximum available transmission power on the user device side,
Maximum transmit power or maximum available transmit power on all carriers in the subframe,
Maximum transmit power or maximum available transmit power on the carrier in the subframe,
Maximum transmission power level of user equipment, or
The device according to any one of claims 16 to 19, which is one of the maximum transmission powers set by a base station or set by a predetermined maximum transmission power value. A program that causes a computer to execute the method according to any one of claims 1 to 5. A program that causes a computer to execute the method according to any one of claims 6 to 10.

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