JP7329660B2 - Data transmission method and its terminal device - Google Patents

Description

TECHNICAL FIELD Embodiments of the present invention relate to the field of communication, more specifically to a data transmission method and its terminal device.

In recent years, with the development of intelligent technology, technologies such as intelligent transportation and driverless driving have attracted more attention. Internet of Vehicle technologies and standards are of vital importance to the development of the aforementioned industries. According to Internet of Vehicle technology, Vehicle to X (V2X) communication is divided into Vehicle to Vehicle (V2V) communication, Vehicle to Infrastructure, V2I) communication, Vehicle to Pedestrian (V2P) communication, Pedestrian to Vehicle (P2V) communication, etc. A fundamental problem in V2X communication is how to achieve efficient communication between vehicles and various devices in various complex environments, especially how to improve communication reliability and reduce communication delay. Either reduce it.

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

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

According to a first aspect, a data transmission method is provided comprising: obtaining, by a user equipment UE, a maximum transmit power; determining a transmission power and/or a control channel transmission power, wherein the first parameter is at least one of a data channel bandwidth, a control channel bandwidth, or a carrier type of a carrier of the first link; determining, including one, and transmitting the control channel and the data channel in the same subframe by the UE.

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 equal to the maximum transmission power, the bandwidth of the data channel, the control It can be determined based on at least one of the bandwidth of the channel or the carrier type of the carrier of the first link to appropriately determine the transmission power of the control information and data.

Referring to the first aspect, in a first possible implementation of the first aspect, the UE determines the transmission power of the data channel and/or the transmission power of the control channel based on the maximum transmission power and the first parameter. is determining a power scale factor based on a proportional relationship between the first power and the maximum transmit power, the first power being the second power of the data channel and the third power of the control channel. , the second power is determined based on the data channel bandwidth and/or the control channel bandwidth included in the first parameter, and the third power is determined based on the first parameter determining based on a data channel bandwidth and/or a control channel bandwidth included; determining a control channel transmission power and/or a data channel transmission power based on a scaling factor; including.

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

With reference to the first aspect and the previous implementations of the first aspect, in a second possible implementation of the first aspect, the power is determined based on a proportional relationship between the first power and the maximum transmit power. Determining the scale factor includes determining a ratio of the maximum transmit power to the first power and determining the lesser of the ratio and 1 as the value of the scale factor.

With reference to the first aspect and the previous implementations of the first aspect, in a third possible implementation of the first aspect, the transmission power of the control channel and/or the transmission of the data channel is based on the power scaling factor. Determining the power includes using the product of the power scale factor and the second power as the transmit power of the data channel and/or the product of the power scale factor and the third power as the transmit power of the control channel. Including using.

With reference to the first aspect and the previous implementations of the first aspect, in a fourth possible implementation of the first aspect, the first parameters are the transmission bandwidth of the control channel and the transmission bandwidth of the data channel Determining by the UE the data channel transmission power and/or the control channel transmission power based on the maximum transmission power and the first parameter, including the width, whether the first power is greater than the maximum transmission power wherein the first power is the sum of the second power of the data channel and the third power of the control channel; determining that the first power is greater than the maximum transmit power when determining the transmission power of the data channel based on the maximum transmission power, the transmission bandwidth of the control channel, and the transmission bandwidth of the data channel; and/or the maximum transmission power, the transmission bandwidth of the control channel, and the data channel or determining the transmission power of the control channel based on the transmission power of the data channel, the transmission bandwidth of the control channel, and the transmission bandwidth of the data channel ,including.

With reference to the first aspect and the previous implementations of the first aspect, in a fifth possible implementation of the first aspect, the UE determines the maximum transmission power of the data channel based on the maximum transmit power and the first parameter. Determining the transmission power and/or the control channel transmission power is determining the control channel transmission power and/or the data channel transmission power based on the sum of the maximum transmission 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 aspect and the previous implementations of the first aspect, in a sixth possible implementation of the first aspect, the UE determines the maximum transmission power of the data channel based on the maximum transmit power and the first parameter. Determining the transmission power and/or the transmission power of the control channel includes determining whether the first power is greater than the maximum transmission power, the first power being the second power of the data channel. determining the transmission power of the data channel based on the scaling factor and the second power when the first power is greater than the maximum power; determining a transmit power of the control channel based on the third power, wherein the scaling factor is less than or equal to the ratio of the maximum transmit power to the first power.

With reference to the first aspect and the previous implementations of the first aspect, in a seventh possible implementation of the first aspect, the maximum transmission power is the maximum transmission power of the UE or the maximum available transmission power, maximum transmit power or maximum available transmit power on all carriers in an uplink subframe, maximum transmit power or maximum available transmit power on the current carrier in a subframe, set to a control channel or a data channel; or one of the indicated maximum transmit power and the maximum transmit power value set by the base station or a predetermined maximum transmit power value.

With reference to the first aspect and the previous implementations of the first aspect, in an eighth possible implementation of the first aspect, a Prior to determining the transmission power and the transmission power of the control channel, the method further comprises:
Determining that the carrier of the first link is a first type carrier.

When the carrier of the first link is determined to be a carrier of the first type, the first aspect or any one of the first through seventh possible implementations of the first aspect is performed. be understood.

With reference to the first aspect and the preceding implementations of the first aspect, in a ninth possible implementation of the first aspect, the first parameter comprises a carrier type of the carrier of the first link; Determining, by the UE, the transmission power of the data channel and the transmission power of the control channel based on the maximum transmission power and the first parameter is the data channel when the carrier of the first link is the second type carrier. determining the maximum transmission power of the data channel as the transmission power of and/or determining the transmission power of the control channel based on the transmission power of the data channel, the bandwidth of the data channel, and the bandwidth of the control channel; or determining the maximum transmission power of the control channel as the maximum transmission power of the control channel.

With reference to the first aspect and the previous implementations of the first aspect, in a tenth possible implementation of the first aspect, the carrier of the first type is the carrier of the first link. and a second link, the carrier of the first link includes a reference signal used to determine the power control parameter, the type of carrier of the first link is determined based on the indication information determined based on at least one of the characteristics of being determined to be one type of carrier or including indication information for determining transmit power parameters of the carrier of the first link.

With reference to the first aspect and the previous implementations of the first aspect, in an eleventh possible implementation of the first aspect, the carrier of the second type is such that the carrier of the first link is the first the carrier of the first link does not include the reference signal used to determine the power control parameter; the instruction information for determining the transmit power parameter of the carrier of the first link is not included, or the carrier type of the first link is determined to be a second type carrier based on the indication information.

With reference to the first aspect and the previous implementations of the first aspect, in a twelfth possible implementation of the first aspect, the second power value of the data channel is the pathloss between the UE and the serving cell or the second power value for the data channel is the smaller of the maximum power value for the data channel and a power value determined based on the path loss between the UE and the serving cell or the third power of the control channel is a power value of the control channel determined based on the path loss between the UE and the serving cell; or the third power of the control channel is the third power of the data channel. A power value determined based on the power value and the bandwidth of the data channel and the control channel, or the third power value of the control channel is the maximum power value on the data channel and the power value between the UE and the serving cell. and the power value of the data channel determined based on the path loss of .

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

According to a third aspect, an apparatus is provided, the apparatus including a transceiver, a memory, a processor, and a bus system. The transceiver, memory, and processor are connected by using a bus system, the memory being configured to store instructions, and the processor executing instructions stored in the memory to receive and/or transmit signals. is configured to control the transceiver to When the processor executes the instructions stored in the memory, the processor performs the method in the first aspect or any possible implementation of the first aspect.

According to a fourth aspect, a computer program product is provided, the computer program product comprising computer program code. When the computer program code is executed by the receiving unit, the processing unit and the transmitting unit, or the receiver, the processor and the transmitter of the terminal device, the terminal device performs any of the first aspect and the implementation of the first aspect. data transmission method.

According to a fifth aspect, there is provided a computer-readable storage medium, the computer-readable storage medium storing a program, the program storing a program for a user equipment to perform any of the data transmission methods of the first aspect and the embodiments of the first aspect. allows you to run

To describe the technical solutions in the embodiments of the present invention more clearly, the following briefly describes the accompanying drawings required to describe the embodiments of the present invention. Apparently, the accompanying drawings in the following description merely show some embodiments of the present invention, and those skilled in the art can further derive other drawings from these accompanying drawings without creative efforts. You can

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 an application scenario according to an embodiment of the present invention; FIG. FIG. 4 is another schematic diagram of an application scenario according to an embodiment of the present invention; FIG. 4 is another schematic diagram of an application scenario according to an embodiment of the present invention; FIG. 4 is a schematic diagram showing that SA and data are in the same subframe according to one embodiment of the present invention; 4 is a flowchart of a method for determining transmit power according to an embodiment of the invention; 1 is a schematic block diagram of a terminal device according to an embodiment of the present invention; FIG. 1 is a schematic block diagram of an apparatus according to an embodiment of the invention; FIG.

The following clearly and completely describes the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

FIG. 1 is a schematic diagram of a V2V communication scenario according to one 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 automatic driving may be implemented through wireless communication between multiple On board Units (OBUs), thereby effectively improving traffic efficiency and reducing traffic accidents. and reduce driving risks.

2 and 3 are schematic diagrams of application scenarios according to embodiments of the present invention. 2 and 3, UE 20 can communicate directly with base station 10, and UE 20 is sometimes referred to as a relay UE. Although UE30 may not be able to communicate directly with base station 10, UE30 can communicate with UE20, so UE30 can communicate with base station 10 by using UE20. UE 30 is sometimes referred to as a remote UE.

In FIG. 2, the communication distance between the UE 20 and the UE 30 that can communicate 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 that can communicate with the UE 20 is relatively long, for example, about 100m to 1000m.

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

The RSU may function as a vehicle device and may function as an eNB. UE1, UE2, and UE3 may be vehicular devices and may have V2V communication with each other using Sidelink. A vehicle device moves at high speed with the vehicle. For example, the relative movement speed is greatest when UE1 and UE2 move relative to each other.

The device shown in FIG. 4 may use the spectrum of the cellular link during communication and may use the intelligent transportation spectrum around 5.9 GHz. Technologies for intercommunication between devices may be enhanced based on the LTE protocol or by using D2D technology.

In this embodiment of the invention, the sidelink may be the communication link between UEs. Sidelinks are also called D2D links in D2D communication, or PC5 links in some other scenarios. In the Internet of Vehicles, sidelinks are sometimes referred to as V2V links, Vehicle to Infrastructure (V2I) links, Vehicle to Pedestrian (V2P) links, and the like. A sidelink may send information in any of the following formats: Broadcast, Unicast, Multicast and Groupcast. The sidelink may use the spectrum of the cellular link, eg, the uplink spectrum of the cellular link.

In this embodiment of the invention, the UE is sometimes referred to as a terminal and may include OBUs on vehicles, roadside RSUs, cell phones used by pedestrians, and the like.

In V2V communication, as shown in FIG. 5, it is recommended to transmit control information (eg, SA) and data (Data) within the same subframe. In FIG. 5A, the SA and data are at non-adjacent frequency domain locations within the same subframe. In FIG. 5B, the SA and data are at adjacent frequency domain locations within the same subframe. In other words, the SA and data frequency domain locations may or may not be adjacent. Additionally, the SA may be carried in a separate physical channel, such as the Physical Sidelink Control Channel (PSCCH). Alternatively, the SA and data may be carried on the same physical channel, such as the Physical Sidelink Shared channel (PSSCH).

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

Note that in current LTE systems, the duration occupied by one subframe is typically 1 millisecond (ms), but the duration of one subframe is not limited in this embodiment of the present invention. . Specifically, in this embodiment of the invention, the duration of one subframe may be the most elementary duration occupied by one transmission, and the duration of one subframe is predetermined Duration may be used. For example, the duration of one subframe may be 1 ms, longer than 1 ms, such as 2 ms, 10 ms, or shorter than 1 ms, such as 0.625 ms, 0.125 ms, 0.2 ms. .

Parallel transmission of SA and data is based on multi-carrier systems. For the transmitter, the total available transmit power within one subframe is fixed. For example, the total available transmit power does not exceed the UE's maximum transmit power. In scenarios where SA and data are sent in the same subframe, when the base station instructs User Equipment (UE) to use maximum transmit power, if maximum transmit power is used for SA: No transmit power available for data. The opposite is also true.

This embodiment of the invention focuses on how to determine the transmit power of the data and control channels when the UE needs to transmit SA and data in the same subframe, in particular the maximum transmit power the UE can set. It aims to solve the problem of how to determine the transmission power for control information and data when using.

A first link indicates a communication link between UEs and may be a D2D link, a V2X link, a Sidelink, or the like. For example, the first link may be the link between UE20 and UE30 in FIG. 2 or 3, or the link between RSU and UE3 in FIG. Communication on the first link may be performed in any of the following ways. unicast, groupcast and broadcast.

A second link indicates the communication link between the UE and the base station and may be a cellular link. For example, the second link may be the link between UE20/UE30 and base station 10 in FIG. 2 or 3, or the link between RSU and eNB in FIG.

A relay UE refers to a UE that can communicate directly with a base station and that 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.

A remote UE refers to a UE that may not be able to communicate directly with the base station, but is able to communicate with the base station by using a relay UE. For example, the remote UE may be UE30 in FIG. 2 or 3, or UE1, UE2, or UE3 in FIG.

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

step 610; The user equipment UE obtains the maximum transmit power of the first link.

step 620; The UE determines the transmission power of the data channel and/or the transmission power of the control channel based on the maximum transmission power and the first parameter.

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

step 630; A UE transmits control and data channels in the same subframe.

In step 610, the maximum transmission power of the first link is the threshold of the allowed transmission power of the first link. No matter how the UE allocates the transmission power of the control and data channels, the sum of the transmission power of the control channel and the transmission power of the data channels should not exceed the maximum allowed transmission 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 transmit power is P _CMAX,c or

and has one of the following meanings: i.e.
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 on 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 a maximum transmission power value or a predetermined maximum transmission 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 transmit power is P _CMAX,c ,

, P _CMAX , P _MAX , P _UMAX , P _EMAX , P-MAX, and so on. This is not a limitation in the present invention.

The maximum transmit power may be predetermined or set by using signaling, or may be common within a cell, or may be user-specific. This is not a limitation 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 transmit power values described in this embodiment of the invention are expressed using logarithmic values (which may be in dBm) or linear values (which may be in milliwatts mW, watts W). Please note that That is, the value may be for a single frequency-domain transmission resource (such as 1 PRB), or it may be for the entire transmission bandwidth. Similarly, power described in subsequent embodiments of the present invention may be determined to be logarithmic or linear based on units of power. for example,

is a linear value representing maximum transmission power, and P _CMAX,c is a logarithmic value representing maximum transmission power. In the present invention, for another parameter x representing 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 appreciated that methods for the UE to obtain maximum transmit power include obtaining a linear or logarithmic value of maximum transmit power. This is not a limitation in the present invention.

At 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 includes the first link and the second link, the carrier of the first link includes the reference signal used to determine the power control parameter, the first link is determined to be the first type carrier based on the indication information, or the indication information for determining the transmit 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 first link carrier includes only the first link, the first link carrier does not include the reference signal used to determine the power control parameter, the first link carrier Either the indication information for determining the transmission power parameter is not included, or the type of carrier of the first link is determined to be the second type carrier based on the indication information.

Reference signals used to determine the power control parameters are CRS (Cell-Specific Reference Signal, cell-specific reference signal), CSI-RS (channel state information reference signal, channel state information reference signal), DMRS (Demodulation reference signal, demodulation reference signal), etc. This is not a limitation in the present invention.

Further, the data channel bandwidth included in the first parameter is the transmission bandwidth for data transmission on the data channel, and the control channel bandwidth is the transmission bandwidth for data transmission on the control channel. be understood.

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

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 equal to the maximum transmission power, the bandwidth of the data channel, the control It can be determined based on at least one of the bandwidth of the channel or the carrier type of the carrier of the first link to appropriately determine the transmission power of the control information and data.

Optionally, in an embodiment of the invention, the UE determining the transmission power of the data channel and/or the transmission power of the control channel based on the maximum transmission power and the first parameter is the first power and determining a power scale factor based on a proportional relationship between maximum transmit power, wherein the first power is the sum of a second power of the data channel and a third power of the control channel; is determined based on the data channel bandwidth and/or the control channel bandwidth included in the first parameter, and the third power is determined based on the data channel bandwidth and/or the control channel bandwidth included in the first parameter or 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 scaling factor.

Optionally, in one embodiment of the present invention, the second power value of the data channel is a power value determined based on the pathloss between the UE and the serving cell; or the second power value of the data channel is , the maximum power value on the data channel and a power value determined based on the path loss between the UE and the serving cell, or the second power of the control channel is the power of the control channel 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 or the third power of the control channel is a power value determined based on the power value of the data channel and the bandwidths of the data and control channels; or the third power value of the control channel is the smaller of the maximum power value on 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, it is assumed that the control channel is the PSCCH channel and the data channel is the PSSCH channel. The third power is denoted as P _{PSCCH_0} and the second power is denoted as P _{PSSCH_0} .

［ｄＢｍ］である。 In mode 3, the transmit power P _PSSCH for the data channel is determined based on the smaller of the maximum power value on the service channel and the transmit power value determined based on the pathloss, and the following formula is used: is represented by i.e.

[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 transmit power P _PSCCH for the control channel is determined based on the power value for the data channel and the bandwidth values for the control and service channels, and is expressed using the following equation. i.e.

[dBm], or

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

［ｄＢｍ］である。 In mode 4, the data channel transmit power P _PSSCH is determined based on the smaller of the maximum power value on the data channel and the transmit power value determined based on the pathloss, and is expressed by the following equation: is represented by i.e.

[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 transmit power P _PSCCH for the control channel is determined based on the power value for the data channel and the bandwidth values for the control and data channels, and is expressed using the following equation. i.e.

[dBm], or

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

Herein, the calculated third power P _PSCCH and the second power P _PSSCH may be logarithmic power values.

In the above formula, M _PSCCH denotes the transmission bandwidth of the PSCCH channel, M _PSSCH denotes the transmission bandwidth of the PSSCH channel,
PL indicates the pathloss value between the UE and the serving base station;
α _PSCCH,3 and α _PSSCH,3 denote the pathloss compensation coefficients of the PSCCH and PSSCH channels in Mode 3, respectively;
α _PSCCH,4 and α _PSSCH,4 denote the pathloss compensation coefficients of the PSCCH and PSSCH channels in mode 4, respectively;
_{Po_PSCCH,3} and _{Po_PSSCH,3} denote two power parameter values set by the serving base station or predefined in mode 3;
_{Po_PSCCH,4} and _{Po_PSSCH,4} denote 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 the prior art for how to calculate the pathloss value. Details are not described herein.

In Mode 3, α _PSCCH,3 , α _PSSCH,3 , P _{o_PSCCH,3} and P _{o_PSSCH,3} may be signaled to the UE in the form of signaling by the serving base station or may be predetermined. For example, prior to S610, the configuration information transmitted by the serving base station includes the values of _αPSCCH,3 , αPSSCH _,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 here.

Herein, transmission mode 3 and transmission mode 4 are different transmission modes on 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 an embodiment of the invention determining a power scale factor based on a proportional relationship between the first power and the maximum transmit power comprises determining a ratio of the maximum transmit power to the first power. and determining the lesser of the ratio and 1 as the value of the scale factor.

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

can be expressed as

である。 Optionally, the scaling factor w is determined according to the formula below. i.e.

is.

Optionally, in an embodiment of the present invention, determining the transmission power of the control channel and/or the transmission power of the data channel based on the power scaling factor includes the power scaling factor and the second power as the transmission power of the data channel. and using the product of the power scale factor and the third power as the transmission power of the control channel.

、及び

である。 Optionally, the transmit power of the data channel is obtained by multiplying the scale factor and the linear value of the second power, and the transmit power of the control channel is obtained by multiplying the scale factor and 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. i.e.

,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 formula, w denotes magnification,

denotes the linear value of the transmit power of the data channel,

is the linear value of the transmit power of the control channel, and

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

denotes the linear value of the third power of the control channel.

Optionally, in an embodiment of the invention, before determining, by the UE, the data channel transmission power and the control channel transmission power based on the maximum transmission power and the first parameter, the method further comprises: Determining whether a carrier of one link is a first type carrier or a second type carrier.

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

In other words, when the carrier of the first link is determined to be the first type carrier, the UE transmits data based on the maximum transmit power and the first parameter according to the method described in the previous embodiment. A transmit power for the channel and a transmit power for the control channel may be determined.

Optionally, in an embodiment of the invention, the carrier of the second type, the first parameter comprising the carrier type of the carrier of the first link, and the maximum transmission power and the first parameter set by the UE determining the transmission power of the data channel and the transmission power of the control channel based on: when the carrier of the first link is the carrier of the second type, the maximum transmission power of the data channel is taken as the transmission power of the data channel and determining the transmission power of the control channel based on the transmission power of the data channel, the bandwidth of the data channel, and the bandwidth of the control channel; including determining as transmit power.

［ｄＢｍ］である。 Optionally, in modes 3 and 4, the data channel transmit power P _PSSCH is determined based on the maximum transmit power on the data channel, expressed using the following equation: i.e.

[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 transmit power P _PSCCH of the control channel is determined based on the power value of the data channel and the bandwidth values of the control and data channels, for example, expressed using the following formula: . i.e.

[dBm]. where 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 modes 3 and 4, the control channel transmit power P _PSCCH is determined based on the maximum transmit power on the control channel, eg, expressed using the following equation: i.e.

[dBm].

As used herein, P _CMAX,PSCCH and P _CMAX,PSSCH denote the maximum transmit power values on the PSCCH and PSSCH channels, respectively. Their values may be predetermined or configured using signaling, and may be common within a cell or user-specific.

Optionally, in an embodiment of the invention, the first parameter comprises a transmission bandwidth of the control channel and a transmission bandwidth of the data channel, the UE, based on the maximum transmission power and the first parameter, the data Determining the transmit power of the channel and the transmit power of the control channel includes:
determining whether the first power is greater than the maximum transmit power, wherein the first power is the sum of a second power of the data channel and a third power of the control channel; , and determining the transmission power of the data channel based on the maximum transmission power, the transmission bandwidth of the control channel, and the transmission bandwidth of the data channel when the first power is greater than the maximum transmission power; determining the transmission power of the control channel based on the power, the transmission bandwidth of the control channel and the transmission bandwidth of the data channel; or the transmission power of the data channel, the transmission bandwidth of the control channel and the transmission bandwidth of the data channel Determining a transmit power for the control channel based on the width.

である。 Optionally, the decision criterion is to decide whether a sum of 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 formula holds, it indicates that the transmission power does not exceed the maximum power value, otherwise it indicates that the transmission power exceeds the maximum transmission power.

Optionally, if the transmit power does not exceed the maximum power value, the transmit power of the data and control channels is determined in the following manner.

［ｄＢｍ］である。 In mode 3, the transmit power P _PSSCH for the data channel is determined based on the smaller of the maximum power value on the service channel and the transmit power value determined based on the pathloss, and the following formula is used: is represented by i.e.

[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 transmit power P _PSCCH for the control channel is determined based on the power value for the data channel and the bandwidth values for the control and service channels, and is expressed using the following equation. i.e.

[dBm], or

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

［ｄＢｍ］である。 In mode 4, the data channel transmit power P _PSSCH is determined based on the smaller of the maximum power value on the data channel and the transmit power value determined based on the pathloss, and is expressed by the following equation: is represented by i.e.

[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 transmit power P _PSCCH for the control channel is determined based on the power value for the data channel and the bandwidth values for the control and data channels, and is expressed using the following equation. i.e.

[dBm], or

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

Herein, the calculated control channel transmit power P _PSCCH and data channel transmit power P _PSSCH may be logarithmic power values.

optionally, if the transmission power exceeds the maximum power value, the data channel is determined based on the maximum transmission power, the transmission bandwidth of the control channel and the transmission bandwidth of the data channel when the first power is greater than the maximum transmission power; and determining the transmission power of the control channel based on the maximum transmission power, the transmission bandwidth of the control channel, and the transmission bandwidth of the data channel, further comprising:
determining the transmission power of the control channel and the transmission power of the data channel based on the sum of the maximum transmission power and the first additional item,
A first addition involves 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, for data channels, the first additional item can be represented in any one of the following formats. i.e.

,

,

,

,

,as well as

is.

It should be understood that the representation form of the first additional item is not limited to those.

、

、

、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 data channel transmit power determined based on the sum of the maximum transmit power and the first additional term may be expressed using the following equation. i.e.

,

,

, or

is. where 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 control channel transmit power determined based on the sum of the maximum transmit power and the first additional term may be expressed by using one of the following equations. i.e.

,

,

,

,

,

,

,

,

,as well as

is. where a and b are positive integers.

Optionally, in an embodiment of the invention, determining, by the UE, the transmission power of the data channel and/or the transmission power of the control channel based on the maximum transmission power and the first parameter is the first power is greater than the maximum transmit power, wherein the first power is the sum of a second power for the data channel and a third power for the control channel; is greater than the maximum transmission power, determining the transmission power of the data channel based on the scaling factor and the second power; and determining the transmission power of the control channel based on the scaling factor and the third power. determining that the scaling factor is less than or equal to the ratio of the maximum transmit power to the first power.

Optionally, in an embodiment of the present invention, determining the transmission power of the data channel based on the scaling factor and the second power when the first transmission power is greater than the maximum transmission power comprises: Determining, as the power, the product of the scale factor and the second power; determining the transmit power of the control channel based on the scale factor and the third power; It involves determining the product of 3 with the power.

である。 Similarly, the criterion is to determine whether 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 formula 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.

Optionally, if the transmit power does not exceed the maximum power value, the transmit power of the data and control channels is determined in the following manner.

［ｄＢｍ］である。 In mode 3, the transmit power P _PSSCH for the data channel is determined based on the smaller of the maximum power value on the service channel and the transmit power value determined based on the pathloss, and the following formula is used: is represented by i.e.

[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 transmit power P _PSCCH for the control channel is determined based on the power value for the data channel and the bandwidth values for the control and service channels, and is expressed using the following equation. i.e.

[dBm], or

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

［ｄＢｍ］である。 In mode 4, the data channel transmit power P _PSSCH is determined based on the smaller of the maximum power value on the data channel and the transmit power value determined based on the pathloss, and is expressed by the following equation: is represented by i.e.

[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 transmit power P _PSCCH for the control channel is determined based on the power value for the data channel and the bandwidth values for the control and data channels, and is expressed using the following equation. i.e.

[dBm], or

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

Herein, the calculated control channel transmission power P _PSCCH and data channel transmission power P _PSSCH may be logarithmic power values.

である。ここで、０＜ｗ≦１である。 Optionally, if 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 in the following manner. i.e.

is. where 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 formula, w(i) denotes the scaling factor,

is the linear value of the transmit power of the data channel, and

is the linear value of the transmission power of the control channel, and

denotes the linear value of the second power of the data channel, and

denotes the linear value of the third power of the control channel.

Optionally, in an embodiment of the invention, the transmit power values are for the control channel and for the data channel when the control channel and the data channel are not transmitted simultaneously on the same time domain resource, e.g. is determined in the following way.

、及び

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

,as well as

is.

、及び

である。 Method 2: The transmission power value of the data channel is set to the maximum transmission power value of the corresponding channel, and the transmission power value of the control channel is set based on the power value of the data channel and the bandwidths of the control and data channels be done. for example,

,as well as

is.

In the above formula, Δ is a constant, method 1 and method 2 can be used for the first type carrier and/or the second type carrier, preferably the first type carrier applicable to

The network slice management method and network management architecture in the embodiments of the present invention have been described in detail above with reference to FIGS. Hereinafter, terminal devices according to embodiments of the present invention will be described in detail with reference to FIGS. 7 and 8. FIG.

FIG. 7 is a block diagram of the structure of a terminal device according to an embodiment of the present invention. It should be appreciated that the terminal device 700 is capable of performing the steps performed by the terminal device in the methods of FIGS. 1-6. To avoid repetition, details are not described here. The terminal device 700 is
an obtaining unit 710 configured to obtain maximum transmit power;
a determining unit 720 configured to determine a data channel transmission power and/or a control channel transmission power based on the maximum transmission power and the first parameter;
a determining unit 720, wherein the first parameter comprises at least one of a data channel bandwidth, a control channel bandwidth, or a carrier type of a carrier of the first link;
a transmitting 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 equal to the maximum transmission power, the bandwidth of the data channel, the control It can be determined based on at least one of the bandwidth of the channel or the carrier type of the carrier of the first link to appropriately determine the transmission power of the 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 an apparatus 800 provided in this embodiment of the invention. It should be understood that the apparatus 800 is capable of performing the steps performed by the user equipment in the methods of FIGS. 1-6. To avoid repetition, details are not described here. The device 800
a memory 810 configured to store a program;
a transceiver 820 configured to communicate with another device;
a processor 830 configured to execute a program in memory 810, wherein when the program is executed, processor 830 further receives and/or transmits signals by using transceiver 820 to achieve up to a transmit power, the processor 830 is further configured to determine a data channel transmit power and/or a control channel transmit power based on the maximum transmit power and the first parameter; The parameter includes at least one of a data channel bandwidth, a control channel bandwidth, or a carrier type for a carrier of the first link, and transceiver 820 further controls and controls the control channel and the data channel within the same subframe. configured to transmit.

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

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 equal to the maximum transmission power, the bandwidth of the data channel, the control It can be determined based on at least one of the bandwidth of the channel or the carrier type of the carrier of the first link to appropriately determine the transmission power of the control information and data.

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

Those skilled in the art will recognize that the units and algorithmic steps in the examples described with reference to the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. may know. Whether a function is implemented in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functionality for each particular application, but such implementation should not be considered beyond the scope of the invention.

For those skilled in the art, for the purpose of convenient and concise description, for the detailed working processes of the aforementioned systems, devices and units, reference is made to the corresponding processes in the aforementioned method embodiments. , the details will not be repeated here.

It should be appreciated that in some of the embodiments provided in this application, the disclosed systems, devices, and methods may be implemented in other ways. For example, the described apparatus embodiment is merely exemplary. For example, the unit division is merely a logical functional division, and may be other divisions in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not performed. Additionally, the displayed or discussed mutual or direct couplings or communication connections may be implemented through the use of some interfaces. Indirect couplings or communicative connections between devices or units may be implemented electronically, mechanically, or otherwise.

Units described as separate parts may or may not be physically separate and parts described as units may or may not be physical units and may be in one location. , may be distributed over a plurality of network units. Some or all of the units may be selected based on actual requirements to achieve the objectives of the solutions of the embodiments.

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

When the functionality is implemented in the form of software functional units and sold or used as a stand-alone product, the functionality may be stored on a computer-readable storage medium. Based on such an understanding, the technical solutions of the present invention essentially, or the parts contributing to the prior art, or some technical solutions can be implemented in the form of software products. A computer software product is stored in a storage medium and instructs a computer device (which may be a personal computer, server, network device, etc.) to perform all or part of the method steps described in the embodiments of the present invention. Contains some instructions for The aforementioned storage medium can store the program code such as USB flash drive, removable hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk, optical disk, etc. Including any medium.

The foregoing descriptions are merely specific implementations of the present invention and are not intended to limit the protection scope of the present invention. Any variation or replacement readily figured out by a person skilled in the art within the technical scope disclosed in the present invention shall fall within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (26)

A data transmission method for a device, comprising:
Determining a first parameter A, where A is

where M _PSCCH denotes the bandwidth of the control channel, M _PSSCH denotes the bandwidth of the data channel, PL denotes the pathloss value between the user equipment (UE) and the base station, α _PSSCH is a predetermined value, _{Po_PSSCH} is a value set by the base station or is a predetermined value, and a is a predetermined constant;
determining a transmission power P _PSSCH of the data channel if A≦P _CMAX , where P _CMAX denotes a maximum transmission power;
The _PPSSCH is

equal to [dBm]; or if A>P _CMAX , then determining the transmit power P _PSSCH of the data channel based on the sum of a first additional term and P _CMAX ; determining, wherein the first additional item is determined based on M _PSCCH and M _PSSCH ;
and transmitting the control channel and the data channel in the same subframe. 2. The method of claim 1, wherein a is equal to -3, 0 or 3. If A>P _CMAX , then the first additional item is

where c is a predetermined constant and P _PSSCH is

3. A method according to claim 1 or 2, wherein [dBm]. The method according to any one of claims 1 to 3, wherein said control channel is a physical sidelink control channel (PSCCH) and said data channel is a physical sidelink shared channel (PSSCH). The maximum transmission power P _CMAX is
maximum transmit power or maximum available transmit power at the UE;
maximum transmit power or maximum available transmit power on all carriers in said subframe;
maximum transmit power or maximum available transmit power on a carrier in said subframe;
A maximum transmission power level of the UE, or a maximum transmission power set by a base station or set by a predetermined maximum transmission power value. The method according to item 1. The method according to any one of claims 1 to 5, wherein said device is said UE. A data transmission method for a device, comprising:
Determining a first parameter A, where A is

where M _PSCCH denotes the bandwidth of the control channel, M _PSSCH denotes the bandwidth of the data channel, PL denotes the pathloss value between the user equipment (UE) and the base station, α _PSSCH is a predetermined value, _{Po_PSSCH} is a predetermined value, and a is a predetermined constant;
determining a transmission power P _PSCCH of the control channel if A≦P _CMAX , where P _CMAX indicates a maximum transmission power;
_PPSCCH is

equal to [dBm]; or if A>P _CMAX , then determining the transmit power P _PSCCH of the control channel based on the sum of a second additional term and P _CMAX ; determining, wherein the second additional item is determined based on M _PSCCH and M _PSSCH ;
and transmitting the control channel and the data channel in the same subframe. 8. The method of claim 7, wherein a is equal to -3, 0 or 3. If A>P _CMAX , then the second additional item is

where c is a predetermined constant and P _PSCCH is

9. A method according to claim 7 or 8, wherein [dBm]. A method according to any one of claims 7 to 9, wherein said control channel is a Physical Sidelink Control Channel (PSCCH) and said data channel is a Physical Sidelink Shared Channel (PSSCH). The maximum transmission power P _CMAX is
maximum transmit power or maximum available transmit power at the UE;
maximum transmit power or maximum available transmit power on all carriers in said subframe;
maximum transmit power or maximum available transmit power on a carrier in said subframe;
A maximum transmission power level of the UE, or a maximum transmission power set by a base station or set by a predetermined maximum transmission power value, according to any of claims 7-10. The method according to item 1. A method according to any one of claims 7 to 11, wherein said device is said UE. a device,
a processor;
coupled to the processor and storing program instructions for execution by the processor, the program instructions causing the processor to:
Determining a first parameter A, where A is

where M _PSCCH denotes the bandwidth of the control channel, M _PSSCH denotes the bandwidth of the data channel, PL denotes the pathloss value between the user equipment (UE) and the base station, α _PSSCH is a predetermined value, _{Po_PSSCH} is a predetermined value, and a is a predetermined constant;
determining the transmission power P _PSSCH of the data channel if A≦P _CMAX , where P _CMAX denotes the maximum transmission power;
The _PPSSCH is

equal to [dBm]; or if A>P _CMAX , then determining the transmit power P _PSSCH of the data channel based on the sum of a first additional term and P _CMAX ; determining, wherein the first additional item is determined based on M _PSCCH and M _PSSCH ;
An apparatus for controlling and causing a transmitter to transmit the control channel and the data channel within the same subframe. 14. The apparatus of claim 13, wherein a equals -3, 0 or 3. If A>P _CMAX , then the first additional item is

where c is a predetermined constant and P _PSSCH is

[dBm]. The apparatus according to any one of claims 13 to 15, wherein said control channel is a physical sidelink control channel (PSCCH) and said data channel is a physical sidelink shared channel (PSSCH). The maximum transmission power P _CMAX is
maximum transmit power or maximum available transmit power at the UE;
maximum transmit power or maximum available transmit power on all carriers in said subframe;
maximum transmit power or maximum available transmit power on a carrier in said subframe;
A maximum transmit power level of the UE, or a maximum transmit power set by a base station or set by a predetermined maximum transmit power value, according to any of claims 13-16. A device according to claim 1. A device according to any one of claims 13 to 17, wherein said device is said UE. a device,
at least one processor;
coupled to the at least one processor and storing program instructions for execution by the at least one processor, the program instructions being sent to the at least one processor to:
Determining a first parameter A, where A is

where M _PSCCH denotes the bandwidth of the control channel, M _PSSCH denotes the bandwidth of the data channel, PL denotes the pathloss value between the user equipment (UE) and the base station, α _PSSCH is a predetermined value, _{Po_PSSCH} is a value set by the base station or is a predetermined value, and a is a predetermined constant;
determining a transmission power P _PSCCH of the control channel if A≦P _CMAX , where P _CMAX indicates a maximum transmission power;
_PPSCCH is

equal to [dBm]; or if A>P _CMAX , then determining the transmit power P _PSCCH of the control channel based on the sum of a second additional term and P _CMAX ; determining, wherein the second additional item is determined based on M _PSCCH and M _PSSCH ;
An apparatus for controlling and causing a transmitter to transmit the control channel and the data channel within the same subframe. 20. The apparatus of claim 19, wherein a equals -3, 0 or 3. If A>P _CMAX , then the second additional item is

where c is a predetermined constant and P _PSCCH is

[dBm]. The apparatus according to any one of claims 19 to 21, wherein said control channel is a physical sidelink control channel (PSCCH) and said data channel is a physical sidelink shared channel (PSSCH). The maximum transmission power P _CMAX is
maximum transmit power or maximum available transmit power at the UE;
maximum transmit power or maximum available transmit power on all carriers in said subframe;
maximum transmit power or maximum available transmit power on a carrier in said subframe;
A maximum transmit power level of the UE, or a maximum transmit power set by a base station or set by a predetermined maximum transmit power value, according to any of claims 19-22. A device according to claim 1. A device according to any one of claims 19 to 23, wherein said device is said UE. A program that causes a computer to execute the method according to any one of claims 1 to 6. A program that causes a computer to execute the method according to any one of claims 7 to 12.

Images