CN116097595A

CN116097595A - PSFCH transmission power configuration method and device

Info

Publication number: CN116097595A
Application number: CN202280004020.9A
Authority: CN
Inventors: 周锐
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-10-10
Filing date: 2022-10-10
Publication date: 2023-05-09
Also published as: WO2024077427A1

Abstract

The present disclosure provides a method and an apparatus for configuring PSFCH transmission power, which may be applied to a mobile communication technology, where the method includes: determining the actual transmission power of the PSFCH according to the actually configured PSFCH transmission time-frequency resource and a resource pool corresponding to the PSFCH; and sending configuration information to the terminal equipment, wherein the configuration information is used for configuring the actual transmission power of the PSFCH. According to the method, the actual transmission power of the PSFCH is determined according to the PSFCH transmission time-frequency resource and the PSFCH corresponding resource pool which are actually configured, so that the actual transmission power is configured for the PSFCH.

Description

PSFCH transmission power configuration method and device

Technical Field

The disclosure relates to the field of communication technologies, and in particular, to a method and a device for configuring PSFCH transmission power.

Background

In order to support direct communication between terminal devices, a side-link communication scheme is introduced. In sidelink communications, a physical sidelink feedback channel (physical sidelink feedback channel, PSFCH) is introduced, which may be used to feedback whether a terminal device is successful or not in transmitting on a corresponding physical sidelink shared channel (physical sidelink shared channel, PSSCH).

In the related art, the configuration of the PSFCH transmission power is typically based on the power configuration of the PSFCH of the downlink power control, and the same power is configured for each PSFCH of the terminal device. However, this configuration may cause a problem that the power of the PSFCH based on the downlink power control is higher than the maximum power of the PSFCH specified on some resource pools, which results in confusion of power configuration of the terminal device.

Disclosure of Invention

An embodiment of a first aspect of the present disclosure provides a method for configuring PSFCH transmission power, including:

determining the actual transmission power of the PSFCH according to the actually configured PSFCH transmission time-frequency resource and a resource pool corresponding to the PSFCH;

and sending configuration information to the terminal equipment, wherein the configuration information is used for configuring the actual transmission power of the PSFCH.

Embodiments of a second aspect of the present disclosure provide a communication apparatus comprising:

the processing module is used for determining the actual transmission power of the PSFCH according to the PSFCH transmission time-frequency resource and the resource pool corresponding to the PSFCH;

and the transceiver module is used for sending configuration information to the terminal equipment, wherein the configuration information is used for configuring the actual transmission power of the PSFCH.

An embodiment of a third aspect of the present disclosure provides a communication device comprising a processor, which when calling a computer program in a memory, performs the method of the first aspect described above.

A fourth aspect embodiment of the present disclosure provides a communication apparatus comprising a processor and a memory, the memory having a computer program stored therein; the processor executes the computer program stored in the memory to cause the communication device to perform the method of the first aspect described above.

A fifth aspect of the present disclosure provides another communications apparatus comprising a processor and interface circuitry for receiving code instructions and transmitting to the processor, the processor being configured to execute the code instructions to cause the apparatus to perform the method of the first aspect described above.

An embodiment of a sixth aspect of the present disclosure provides a computer readable storage medium storing instructions for use by a communication device as described above, which when executed, cause the communication device to perform the method of the first aspect as described above.

Embodiments of the seventh aspect of the present disclosure also provide a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the method of the first aspect described above.

An eighth aspect of the present disclosure provides a chip system comprising at least one processor and an interface for supporting a communication device to implement the functionality referred to in the first aspect, e.g. to determine or process at least one of data and information referred to in the above-described method. In one possible design, the chip system further includes a memory for holding computer programs and data necessary for the communication device. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

An embodiment of the ninth aspect of the present disclosure also provides a computer program which, when run on a computer, causes the computer to perform the method of the first aspect described above.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the background of the present disclosure, the following description will explain the drawings that are required to be used in the embodiments or the background of the present disclosure.

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

fig. 2 is a flow chart of a method for configuring PSFCH transmission power according to an embodiment of the present disclosure;

fig. 3 is a flowchart of another method for configuring PSFCH transmission power according to an embodiment of the present disclosure;

fig. 4 is a flowchart of another method for configuring PSFCH transmission power according to an embodiment of the present disclosure;

fig. 5 is a flowchart of another method for configuring PSFCH transmission power according to an embodiment of the present disclosure;

fig. 6 is a flowchart of another PSFCH transmission power configuration method according to an embodiment of the present disclosure;

fig. 7 is a flowchart of another method for configuring PSFCH transmission power according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of a communication device according to an embodiment of the disclosure;

Fig. 9 is a schematic structural diagram of another communication device according to an embodiment of the disclosure;

fig. 10 is a schematic structural diagram of a chip provided in an embodiment of the disclosure.

Detailed Description

In order to better understand a method for configuring PSFCH transmission power according to an embodiment of the present disclosure, a communication system to which the embodiment of the present disclosure is applicable is first described below.

Referring to fig. 1, fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the disclosure. The communication system may include, but is not limited to, a network device, and a terminal device, and the number and form of devices shown in fig. 1 are only for example and not limiting the embodiments of the disclosure, and may include two or more network devices and two or more terminal devices in practical applications. The communication system shown in fig. 1 is exemplified as comprising a network device 11 and a terminal device 12.

It should be noted that the technical solution of the embodiment of the present disclosure may be applied to various communication systems. For example: a long term evolution (long term evolution, LTE) system, a fifth generation (5th generation,5G) mobile communication system, a 5G New Radio (NR) system, or other future new mobile communication systems, etc.

The network device 11 in the embodiment of the present disclosure is an entity for transmitting or receiving signals at the network side. For example, the network device 101 may be an evolved NodeB (eNB), a transmission point (transmission reception point, TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (wireless fidelity, wiFi) system, etc. The embodiments of the present disclosure do not limit the specific technology and specific device configuration employed by the network device. The network device provided by the embodiments of the present disclosure may be composed of a Central Unit (CU) and a Distributed Unit (DU), where the CU may also be referred to as a control unit (control unit), the structure of the CU-DU may be used to split the protocol layers of the network device, such as a base station, and the functions of part of the protocol layers are placed in the CU for centralized control, and the functions of part or all of the protocol layers are distributed in the DU, so that the CU centrally controls the DU.

The terminal device 12 in the embodiments of the present disclosure is an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal device may also be referred to as a terminal device (terminal), a User Equipment (UE), a Mobile Station (MS), a mobile terminal device (MT), etc. The terminal device may be an automobile with a communication function, a smart car, a mobile phone (mobile phone), a wearable device, a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned-driving (self-driving), a wireless terminal device in teleoperation (remote medical surgery), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), or the like. The embodiment of the present disclosure does not limit the specific technology and the specific device configuration adopted by the terminal device.

It may be understood that, the communication system described in the embodiments of the present disclosure is for more clearly describing the technical solutions of the embodiments of the present disclosure, and is not limited to the technical solutions provided in the embodiments of the present disclosure, and those skilled in the art can know that, with the evolution of the system architecture and the appearance of new service scenarios, the technical solutions provided in the embodiments of the present disclosure are equally applicable to similar technical problems.

In the related art, the configuration of the PSFCH transmission power is typically based on the power configuration of the PSFCH of the downlink power control, and the same power is configured for each PSFCH of the terminal device. However, this approach may suffer from the problem that the power of the PSFCH based on the downlink power control is higher than the maximum power of the PSFCH specified on some resource pools, resulting in a confusion of the power configuration of the terminal device.

In the disclosure, the network device may determine the actual transmission power of the PSFCH according to the actually configured PSFCH transmission time-frequency resource and the resource pool corresponding to the PSFCH, so as to configure the actual transmission power for the PSFCH, thereby ensuring the reasonability of the PSFCH transmission power configuration, and solving the problem of power configuration confusion of the terminal device.

A method and apparatus for configuring PSFCH transmission power provided by the present disclosure are described in detail below with reference to the accompanying drawings.

Referring to fig. 2, fig. 2 is a flowchart of a method for configuring PSFCH transmission power according to an embodiment of the present disclosure, where the method is performed by a network device. As shown in fig. 2, the method may include, but is not limited to, the steps of:

step 201, determining the actual transmission power of the PSFCH according to the actually configured PSFCH transmission time-frequency resource and the resource pool corresponding to the PSFCH.

In the present disclosure, a network device may perform time-frequency resource configuration for a PSFCH in a side-uplink transmission by a terminal device. For example, at one PSFCH transmission time, that is, a side-link frame including the PSFCH is transmitted simultaneously with N PSFCHs, where the N PSFCHs have a total of R resource pools, and the sum of the number of PSFCHs on the R resource pools is N. The R resource pools may be understood herein as resource pools corresponding to PSFCHs.

It should be noted that there may be one or more resource pools corresponding to the PSFCH, which is not limited in this disclosure.

In the present disclosure, the transmission time-frequency resources of the PSFCH are configured on resource pools of the terminal device, and each resource pool may have the maximum power supported by the time-frequency resources in the configured resource pool on the PSFCH.

In the present disclosure, the actual transmission power of the PSFCH may be determined according to the number of resource pools corresponding to the PSFCH, the number of PSFCHs on each resource pool, the maximum power supported by each resource pool on the PSFCH, and the like.

The actual transmission power of the PSFCH on different resource pools may be the same or different, and the PSFCHs belonging to the same resource pool may be configured with the same actual transmission power.

And step 202, sending configuration information to the terminal equipment, wherein the configuration information is used for configuring the actual transmission power of the PSFCH.

In the present disclosure, after determining the actual transmission power of the PSFCH, configuration information may be transmitted to the terminal device to configure the actual transmission power for each PSFCH of the terminal device.

The configuration information may include an actual transmission power of the PSFCH on each resource pool, and the PSFCHs belonging to the same resource pool may configure the same actual transmission power.

In the embodiment of the disclosure, the actual transmission power of the PSFCH is determined according to the actually configured PSFCH transmission time-frequency resource and the resource pool corresponding to the PSFCH, so that the actual transmission power is configured for the PSFCH.

Referring to fig. 3, fig. 3 is a flowchart of another PSFCH transmission power configuration method provided in an embodiment of the present disclosure, where the method is performed by a network device. As shown in fig. 3, the method may include, but is not limited to, the steps of:

Step 301, determining power control power of the PSFCH on each resource pool.

Wherein, each resource pool may refer to a resource pool corresponding to the PSFCH, and one or more resource pools corresponding to the PSFCH may be provided.

In the disclosure, initial power, compensation coefficient, downlink path loss reported by a terminal device, etc. can be obtained, and power control power of the PSFCH on each resource pool is calculated according to the initial power, compensation coefficient, downlink path loss, etc. The calculation mode of the power control power of the PSFCH on each resource pool can be referred to the following formula (1):

P _PSFCH,one ＝P _O,PSFCH +10log ₁₀ (2 ^μ )+α _PSFCH ·PL (1)

wherein P is _PSFCH,one Representing the configuration power of a single PSFCH; p (P) _O,PSFCH And alpha is _PSFCH Representing the initial power and compensation coefficient of the actual configuration of the network device; PL represents the downlink path loss reported by the terminal device; the value of μ is related to the bandwidth of the subcarrier, for example, if the bandwidth of the subcarrier is 15kHz, the value of μ is 0, and if the bandwidth of the subcarrier is 30kHz, the value of μ is 1.

In the present disclosure, the power control power of the PSFCH on each resource pool may be the same for the same terminal device, that is, the power control power of the PSFCH on each resource pool is the same.

Step 302, determining the actual transmission power corresponding to each PSFCH of each resource pool according to the power control power, the first maximum power of the PSFCH of each resource pool and the second maximum power supported by the terminal equipment on the PSFCH.

In the disclosure, there may be one or more resource pools corresponding to the PSFCH, where the time-frequency resources of the PSFCH are configured on the resource pool of the terminal device, and there may be one or more PSFCHs on each resource pool, where the network device may configure the first maximum power for the PSFCH on each resource pool of the terminal device through radio resource control (radio resource control, RRC) signaling, so that each resource pool has the maximum power supported by the time-frequency resources in the configured resource pool.

In the present disclosure, the first maximum power of the PSFCH on each resource pool may be the same or different, which is not limited in the present disclosure.

In the disclosure, the terminal device may report the maximum power supported on the PSFCH, that is, the second maximum power, to the network device, so that the network device may obtain the second maximum power supported on the PSFCH by the terminal device.

In the present disclosure, the actual transmission power corresponding to the PSFCH of each resource pool may be understood as the actual transmission power corresponding to the PSFCH of each resource pool, where the actual transmission power corresponding to the PSFCH of the same resource pool is the same, and the actual transmission powers corresponding to the PSFCHs of different resource pools may be different or the same.

In the disclosure, for each resource pool, a smaller power value of both the power control power and the first maximum power corresponding to each resource pool may be determined, and according to the smaller power value corresponding to each resource pool, the total power corresponding to all resource pools is determined, and according to the total power and the second maximum power, the actual transmission power corresponding to each resource pool PSFCH is determined.

And 303, sending configuration information to the terminal equipment, wherein the configuration information is used for configuring the actual transmission power corresponding to each resource pool to the PSFCH on each resource pool.

In the present disclosure, after determining the actual transmission power corresponding to each resource pool PSFCH, the network device may send configuration information to the terminal device, so as to configure the PSFCH of each resource pool on the terminal device with the actual transmission power corresponding to each resource pool.

In the present disclosure, the actual transmission power of the PSFCH configuration on the same resource pool may be the same. For example, there are 3 PSFCHs in the resource pool a, and the actual transmission power corresponding to the PSFCHs in the resource pool a is determined to be a, and the actual transmission powers of the 3 PSFCHs in the resource pool a may be all configured to be a.

Optionally, the actual transmission power of the PSFCH configuration on the same resource pool may also be less than or equal to the actual transmission power corresponding to the PSFCH of the resource pool. For example, there are 2 PSFCHs in a certain resource pool, where the actual transmission power corresponding to the PSFCH in the resource pool is b, where the actual transmission power of one PSFCH may be configured as b, and the actual transmission power of another PSFCH may be configured as a value smaller than b.

In the embodiment of the disclosure, by determining the power control power of the PSFCH on each resource pool, determining the actual transmission power corresponding to the PSFCH of each resource pool according to the power control power, the first maximum power of the PSFCH on each resource pool and the second maximum power supported by the terminal device on the PSFCH, and sending configuration information to the terminal device, so as to configure the actual transmission power corresponding to each resource pool to the PSFCH on each resource pool. Therefore, according to the power, the first maximum power corresponding to each resource pool and the second maximum power supported by the terminal equipment on the PSFCH, the actual transmission power corresponding to each resource pool PSFCH is determined, and the actual transmission power corresponding to each resource pool PSFCH is configured to the PSFCH on each resource pool.

Referring to fig. 4, fig. 4 is a flowchart of another PSFCH transmission power configuration method provided in an embodiment of the present disclosure, where the method is performed by a network device. As shown in fig. 3, the method may include, but is not limited to, the steps of:

In step 401, power control power of the PSFCH on each resource pool is determined.

In an embodiment of the present disclosure, step 401 may be implemented in any manner in each embodiment of the present disclosure, which is not limited to this embodiment, and is not repeated herein.

In step 402, for each resource pool, a smaller power is determined from the power control power and the first maximum power, and is used as a first candidate power corresponding to each resource pool PSFCH.

In the disclosure, for each resource pool, the network device may compare the power control power with the first maximum power to determine a smaller power from the power control power and the first maximum power, and use the smaller power as a first candidate power corresponding to each resource pool PSFCH.

For example, at one PSFCH transmission time, i.e. the side-link frame containing the PSFCH has N PSFCHs simultaneously transmitted, where the N PSFCHs have T resource pools, where R is the resource pool _i On which is K _i The PSFCH transmission satisfies

Resource pool R _i The determination manner of the first candidate power corresponding to the upper PSFCH is as shown in the following formula (2):

wherein, the liquid crystal display device comprises a liquid crystal display device,

representing a resource pool R _i A first candidate power corresponding to the upper PSFCH; p (P) _PSFCH,one Representing the power control power; sl-maxTransPower represents resource pool R _i The upper PSFCH corresponds to the first maximum power.

In the present disclosure, since the first maximum powers of the PSFCHs on different resource pools may be different, the first candidate powers corresponding to the different resource pools may be the same or different, which is not limited in the present disclosure.

Step 403, determining the actual transmission power corresponding to each resource pool PSFCH according to the second maximum power and the first candidate power corresponding to each resource pool PSFCH.

In the present disclosure, there may be multiple PSFCHs in one resource pool, so a network device may determine total power corresponding to all the resource pools PSFCHs according to the number of PSFCHs in each resource pool and the first candidate power corresponding to each resource pool PSFCH, compare the total power corresponding to all the resource pools PSFCHs with the second maximum power, and determine actual transmission powers corresponding to each resource pool PSFCH according to the comparison result.

For example, if the total power corresponding to all the resource pools PSFCH is smaller than the second maximum power, which indicates that the terminal device can support the first candidate power corresponding to each resource pool PSFCH, the first candidate power corresponding to each resource pool PSFCH may be used as the actual transmission power corresponding to each resource pool PSFCH.

And step 404, sending configuration information to the terminal equipment, wherein the configuration information is used for configuring the actual transmission power corresponding to each resource pool to the PSFCH on each resource pool.

In an embodiment of the present disclosure, step 404 may be implemented in any manner in each embodiment of the present disclosure, which is not limited to this embodiment, and is not repeated herein.

In the embodiment of the present disclosure, for each resource pool, a smaller power may be determined from the power control power and the first maximum power, and used as a first candidate power corresponding to each resource pool PSFCH, and according to the second maximum power and the first candidate powers respectively corresponding to each resource pool PSFCH, the actual transmission powers respectively corresponding to each resource pool PSFCH are determined, and configuration information is sent to the terminal device, so as to configure the transmission power corresponding to each resource pool for the PSFCH on each resource pool. Therefore, for each resource pool, the actual transmission power corresponding to the PSFCH of each resource pool is determined based on the smaller power of the PSFCH power control power and the first maximum power and the second maximum power supported by the terminal equipment, so that the reasonability of PSFCH transmission power configuration can be ensured, and the problem of disordered power configuration of the terminal equipment can be solved.

Referring to fig. 5, fig. 5 is a flowchart of another PSFCH transmission power configuration method provided in an embodiment of the present disclosure, where the method is performed by a network device. As shown in fig. 5, the method may include, but is not limited to, the steps of:

step 501, determining the power control power of the PSFCH on each resource pool.

Step 502, determining smaller power from the power control power and the first maximum power for each resource pool, as a first candidate power corresponding to each resource pool PSFCH.

In the embodiments of the present disclosure, steps 501 to 502 may be implemented in any manner in each embodiment of the present disclosure, which is not limited to this embodiment, and is not described in detail.

In step 503, according to the first candidate powers respectively corresponding to the PSFCHs of each resource pool, a first total candidate power corresponding to the PSFCH of the terminal device is determined.

In the disclosure, a network device may multiply the number of PSFCHs on each resource pool with a first candidate power corresponding to each resource pool PSFCH to obtain a first sub-power corresponding to each resource pool PSFCH, add the first sub-powers corresponding to the resource pools PSFCH to obtain a sum of the first sub-powers of the resource pools PSFCH, and determine the sum of the first sub-powers of the resource pools PSFCH as a first total candidate power corresponding to the PSFCH of the terminal device.

Based on the example in the above embodiment, the calculation method of the first total candidate power can be shown by the following formulas (3) and (4):

/>

representing a resource pool R _i A first sub-power on; PSFCHR _all Representing a first total candidate power corresponding to the PSFCH of the terminal device.

In step 504, the first candidate power corresponding to each resource pool PSFCH is determined as the actual transmission power corresponding to each resource pool PSFCH when the first total candidate power is less than or equal to the second maximum power.

In the present disclosure, the network device may compare the first total candidate power with the second maximum power, and if the first total candidate power is less than or equal to the second maximum power, which indicates that the maximum power supported by the terminal device on the PSFCH may meet the transmission requirement of the PSFCH on the resource pool, then the first candidate power corresponding to each resource pool PSFCH may be determined as the actual transmission power corresponding to each resource pool PSFCH.

Based on the above example, assume that the second maximum power is P _CMAX Representing, PSFCHR may be used _all And P _CMAX By comparison, if the following equation (5) is satisfied, the resource pool R can be used _i Is the first candidate power of (1)

As a resource pool R _i The actual transmission power corresponding to the upper PSFCH.

PSFCHR _all ≤P _CMAX (5)

And step 505, sending configuration information to the terminal equipment, wherein the configuration information is used for configuring the actual transmission power corresponding to each resource pool to the PSFCH on each resource pool.

In an embodiment of the present disclosure, step 505 may be implemented by any one of various embodiments of the present disclosure, which is not limited thereto, and is not repeated herein.

In the embodiment of the present disclosure, a first total candidate power corresponding to a PSFCH of a terminal device may be determined according to first candidate powers respectively corresponding to PSFCHs of resource pools, and if the first total candidate power is less than or equal to a second maximum power, the first candidate power corresponding to each PSFCH of the resource pools is determined as an actual transmission power corresponding to each PSFCH of the resource pools, and configuration information is sent to the terminal device, so as to configure the actual transmission power corresponding to each resource pool to the PSFCH on each resource pool. Therefore, when the total candidate power of the PSFCH on all the resource pools is smaller than or equal to the maximum power supported by the terminal equipment on the PSFCH, the first candidate power corresponding to each resource pool PSFCH can be determined as the actual transmission power corresponding to each resource pool PSFCH, so that the problem of disordered power configuration of the terminal equipment can be solved.

Referring to fig. 6, fig. 6 is a flowchart of another PSFCH transmission power configuration method provided in an embodiment of the present disclosure, where the method is performed by a network device. As shown in fig. 6, the method may include, but is not limited to, the steps of:

step 601, determining power control power of PSFCH on each resource pool.

In step 602, for each resource pool, a smaller power is determined from the power control power and the first maximum power, and is used as a first candidate power corresponding to each resource pool PSFCH.

Step 603, determining a first total candidate power corresponding to the PSFCH of the terminal device according to the first candidate powers respectively corresponding to the PSFCH of each resource pool.

In the embodiments of the present disclosure, steps 601 to 603 may be implemented in any manner in each embodiment of the present disclosure, which is not limited to this embodiment, and is not described in detail.

In step 604, in the case that the first total candidate power is greater than the second maximum power, the first candidate powers corresponding to the PSFCHs of the resource pools are compared to determine the order of the first candidate powers corresponding to the PSFCHs of the resource pools from high to low.

In the disclosure, if the first total candidate power is greater than the second maximum power, it is indicated that the maximum power supported by the terminal device on the PSFCH cannot meet the requirement of the first candidate power corresponding to the PSFCH on each resource pool, and at this time, the first candidate powers corresponding to the PSFCH of each resource pool may be compared to determine the order of the first candidate powers corresponding to the PSFCH of each resource pool from large to small.

Step 605, the first candidate power corresponding to the 1 st resource pool PSFCH in the order from large to small is adjusted to obtain the second candidate power corresponding to the 1 st resource pool PSFCH.

In the present disclosure, the number of each resource pool is M, that is, the number of resource pools corresponding to the PSFCH is M, where M is a positive integer.

In the present disclosure, the 1 st resource pool in the order from large to small, that is, the resource pool with the highest first candidate power in the M resource pools.

In the disclosure, the first candidate power of the PSFCH on the resource pool with the largest first candidate power may be reduced first to obtain the second candidate power corresponding to the resource pool.

According to the method and the device, corresponding adjustment values are preset for each resource pool according to the sequence of the first candidate power from large to small, wherein the larger the first candidate power is, the larger the adjustment value is, and the network equipment can reduce the first candidate power corresponding to the PSFCH of the resource pool according to the adjustment value corresponding to the 1 st resource pool in the sequence from large to small.

Alternatively, the network device may reduce the first candidate power corresponding to the 1 st resource pool PSFCH in the order from large to small to the target value.

For example, based on the example in the above embodiment, the first candidate power corresponding to the 1 st resource pool PSFCH in the order from large to small may be reduced to the target value P _CMAX -10log ₁₀ N。

Alternatively, the network device may also reduce the first candidate power corresponding to the 1 st resource pool PSFCH in the order from large to small to be greater than the target value P _CMAX -10log ₁₀ And (3) calculating the total candidate power corresponding to the PSFCH of the terminal equipment according to the (3) and (4), and if the total candidate power corresponding to the PSFCH of the terminal equipment is still larger than the second maximum power, continuing to reduce until the target value is adjusted.

Step 606, determining a second total candidate power corresponding to the PSFCH of the terminal device according to the second candidate power and the first candidate powers corresponding to the PSFCH of other resource pools in the M resource pools.

In the disclosure, the network device may multiply the second candidate power with the number of PSFCHs on the 1 st resource pool in the order from large to small to obtain a second sub-power corresponding to the PSFCH of the resource pool, and for other resource pools except for the resource pool with the highest first candidate power in the M resource pools, obtain the first sub-power according to the product of the number of PSFCHs on the other resource pools and the first candidate power, and add the second sub-power to the first sub-power corresponding to the PSFCH of the other resource pools to obtain a second total candidate power corresponding to the PSFCH of the terminal device.

That is, after the first candidate power corresponding to the 1 st resource pool PSFCH is reduced to the second candidate power in the order from large to small, the second total candidate power corresponding to the PSFCH of the terminal device can be calculated using the above formulas (3) and (4).

In step 607, when the second total candidate power is greater than the second maximum power, the first candidate power corresponding to the 2 nd resource pool PSFCH in the order from large to small is adjusted until the second total candidate power corresponding to the PSFCH of the terminal device is less than or equal to the second maximum power after the first candidate power corresponding to the i-th resource pool PSFCH in the order from large to small is adjusted.

Wherein, the 2 nd resource pool in the order from big to small, namely the first candidate power second highest resource pool in the M resource pools.

In the disclosure, after the first candidate power corresponding to the resource pool with the largest first candidate power is adjusted, if the second total candidate power corresponding to the PSFCH of the terminal device is greater than the second maximum power, the first candidate power corresponding to the PSFCH of the 2 nd resource pool in the order from large to small may be reduced, and the second total candidate power corresponding to the PSFCH of the terminal device is calculated, and if the second total candidate power corresponding to the PSFCH of the terminal device is still greater than the second maximum power, the first candidate power corresponding to the PSFCH of the 3 rd resource pool in the order from large to small may be continuously reduced until the second total candidate power corresponding to the PSFCH of the terminal device is less than or equal to the second maximum power after the first candidate power corresponding to the i-th resource pool PSFCH in the order from large to small is reduced.

Where i may be a positive integer less than or equal to M.

In the present disclosure, the manner of adjusting the first candidate power corresponding to the other resource pool PSFCH is similar to the manner of adjusting the first candidate power corresponding to the 1 st resource pool PSFCH in the order from large to small, and thus will not be described herein.

In step 608, the second candidate powers corresponding to the first i resource pools PSFCH in the order from large to small are determined as the actual transmission powers corresponding to the first i resource pools PSFCH.

In the present disclosure, the second candidate power obtained after the adjustment of the first i resource pools in the order from large to small may be used as the actual transmission power corresponding to the first i resource pools PSFCH.

For example, M is 4, i is 2, the resource pool with the highest first candidate power may be adjusted to obtain the second candidate power, which is used as the actual transmission power corresponding to the resource pool PSFCH with the highest first candidate power, and the resource pool with the second highest first candidate power may be adjusted to obtain the second candidate power, which is used as the actual transmission power corresponding to the resource pool PSFCH with the second highest first candidate power.

In step 609, the first candidate powers corresponding to the i+1th to mth resource pools PSFCH in the order from large to small are determined as the actual transmission powers corresponding to the i+1th to mth resource pools PSFCH.

In the present disclosure, the first candidate powers respectively corresponding to the i+1th to mth resource pools PSFCH in the order from large to small are not adjusted, and the first candidate powers respectively corresponding to the i+1th to mth resource pools PSFCH in the order from large to small may be determined as the actual transmission powers respectively corresponding to the i+1th to mth resource pools PSFCH.

And step 610, sending configuration information to the terminal equipment, wherein the configuration information is used for configuring the actual transmission power corresponding to each resource pool to the PSFCH on each resource pool.

In an embodiment of the present disclosure, step 610 may be implemented in any manner in each embodiment of the present disclosure, which is not limited to this embodiment, and is not repeated herein.

In the embodiment of the present disclosure, if the number of each resource pool is M, the first candidate powers corresponding to the resource pools PSFCH may be adjusted according to the order of the first candidate powers from large to small until the second total candidate power corresponding to the PSFCH of the terminal device is less than or equal to the second maximum power after the first candidate power corresponding to the i-th resource pool PSFCH is adjusted in the order from large to small, for the resource pool with the first candidate power adjusted, the second candidate power obtained after adjustment may be used as the actual transmission power corresponding to the resource pool PSFCH, and for the resource pool with the first candidate power not adjusted, the first candidate power may be used as the actual transmission power corresponding to the resource pools PSFCH, thereby solving the problem of power configuration confusion of the terminal device.

Referring to fig. 7, fig. 7 is a flowchart of another PSFCH transmission power configuration method provided in an embodiment of the present disclosure, where the method is performed by a network device. As shown in fig. 7, the method may include, but is not limited to, the steps of:

step 701, determining power control power of the PSFCH on each resource pool.

In step 702, for each resource pool, a smaller power is determined from the power control power and the first maximum power, and is used as a first candidate power corresponding to each resource pool PSFCH.

In step 703, a first total candidate power corresponding to the PSFCH of the terminal device is determined according to the first candidate powers respectively corresponding to the PSFCH of each resource pool.

In the embodiments of the present disclosure, steps 701 to 703 may be implemented in any manner in each embodiment of the present disclosure, which is not limited to this embodiment, and is not described in detail.

In step 704, when the first total candidate power is greater than the second maximum power, the first candidate power corresponding to the target resource pool PSFCH in each resource pool is adjusted to obtain the third candidate power corresponding to the target resource pool PSFCH.

In the present disclosure, if the first total candidate power is greater than the second maximum power, the first candidate power corresponding to the PSFCH of the target resource pool in each resource pool may be reduced to the third candidate power, so that the third total candidate power corresponding to the PSFCH of the terminal device is less than or equal to the second maximum power.

The third total candidate power may be determined based on the third candidate power and the first candidate power corresponding to the PSFCH of other resource pools in each resource pool, and the calculation manner of the third total candidate power is similar to that of the first total candidate power, so that the description thereof will not be repeated here.

In the present disclosure, the target resource pool may be one or more resource pools of each resource pool, which is not limited by the present disclosure.

Optionally, if the first total candidate power is greater than the second maximum power, one or more resource pools may be randomly selected from the resource pools as the target resource, and the first candidate power corresponding to the target resource PSFCH is reduced, so as to obtain the third candidate power corresponding to the target resource pool PSFCH.

Optionally, if the first total candidate power is greater than the second maximum power, one or more resource pools with the highest first candidate power in each resource pool may be used as the target resource pool, and the first candidate power corresponding to the target resource PSFCH may be reduced, so as to obtain the third candidate power corresponding to the target resource pool PSFCH.

Step 705, determining the third candidate power corresponding to the target resource pool PSFCH as the actual transmission power corresponding to the target resource pool PSFCH.

In the disclosure, for the target resource pool, the third candidate power obtained after the first candidate power corresponding to the target resource pool PSFCH is adjusted may be used as the actual transmission power corresponding to the target resource pool PSFCH.

In step 706, the first candidate power corresponding to the other resource pool PSFCH is determined as the actual transmission power corresponding to the other resource pool PSFCH.

In the disclosure, for other resource pools than the target resource pool in each resource pool, the first candidate power corresponding to the other resource pool PSFCH may be used as the actual transmission power corresponding to the other resource pool PSFCH.

And step 707, sending configuration information to the terminal device, where the configuration information is used to configure the PSFCH on each resource pool with the actual transmission power corresponding to each resource pool.

In an embodiment of the present disclosure, step 707 may be implemented in any manner in each embodiment of the present disclosure, which is not limited thereto, and is not described herein.

In the embodiment of the present disclosure, if the first total candidate power is greater than the second maximum power, the first candidate power corresponding to the target resource pool PSFCH in each resource pool may be adjusted to obtain a third candidate power corresponding to the target resource pool PSFCH, where the third total candidate power corresponding to the PSFCH of the terminal device is less than or equal to the second maximum power, the third total candidate power is determined based on the third candidate power corresponding to the target resource pool PSFCH and the first candidate powers corresponding to other resource pools PSFCH in each resource pool, and the third candidate power corresponding to the target resource pool PSFCH is determined as the actual transmission power corresponding to the target resource pool PSFCH, and the first candidate powers corresponding to other resource pools PSFCH are determined as the actual transmission powers corresponding to other resource pools PSFCH, so that the problem of power configuration confusion of the terminal device may be solved.

In order to facilitate understanding of the configuration method of PSFCH transmission power of the present disclosure, the following description will be given by way of the following embodiments.

The network device can be used for terminal deviceThe PSFCH in the side-link transmission performs configuration of time-frequency resources. For example, at one PSFCH transmission time, i.e., the side-link frame containing the PSFCH has N PSFCHs simultaneously transmitted, where the N PSFCHs have R resource pools in total, where R is the resource pool _i On which is K _i The PSFCH transmission satisfies

The network device can calculate the power control power P according to the formula (1) _PSFCH,one And adopts

For the first power and P _PSFCH,one I.e. the smaller value of the above formula (2).

The network device may also receive the maximum power P supported on the PSFCH reported by the terminal device _CMAX The network device may ensure that the sum of the power of the PSFCHs configured on each resource pool is less than P _CMAX I.e. satisfying the above formula (5).

If the network device calculates the sum of the power of the PSFCH configured on each resource pool

Greater than P _CMAX Can firstly reduce +.>

The power of all PSFCH in the highest resource pool up to the corresponding +.>

If the above formula (5) is still not available at this time, the decrease can be continued

The power of PSFCH in the second highest resource pool, up to the corresponding +. >

And so on, the network device completes the power configuration of the PSFCH. The network device may configure the determined actual transmission power of the PSFCH to the terminal device, wherein the network device may configure the same actual transmission power for PSFCHs belonging to the same resource pool. The terminal device may perform corresponding PSFCH transmission according to the configuration of the actual transmission power of the PSFCH issued by the network device.

Referring to fig. 8, fig. 8 is a schematic structural diagram of a communication device according to an embodiment of the disclosure. The communication device 800 shown in fig. 8 may include a processing module 801 and a transceiver module 802. The transceiver module 802 may include a transmitting module for implementing a transmitting function and/or a receiving module for implementing a receiving function, and the transceiver module 802 may implement the transmitting function and/or the receiving function.

It is understood that the communication apparatus 800 may be a network device, an apparatus in a network device, or an apparatus that can be used in cooperation with a network device.

The communication apparatus 800 is on the network device side, wherein:

a processing module 801, configured to determine an actual transmission power of the PSFCH according to the actually configured PSFCH transmission time-frequency resource and a resource pool corresponding to the PSFCH;

A transceiver module 802, configured to send configuration information to a terminal device, where the configuration information is used to configure an actual transmission power of the PSFCH.

Optionally, the processing device 801 is configured to:

determining the power control power of PSFCH on each resource pool;

and determining the actual transmission power corresponding to each PSFCH of each resource pool according to the power control power, the first maximum power of the PSFCH of each resource pool and the second maximum power supported by the terminal equipment on the PSFCH.

Optionally, the processing device 801 is configured to:

determining smaller power from the power control power and the first maximum power for each resource pool, and taking the smaller power as a first candidate power corresponding to each resource pool PSFCH;

and determining the actual transmission power respectively corresponding to each resource pool PSFCH according to the second maximum power and the first candidate power respectively corresponding to each resource pool PSFCH.

Optionally, the processing device 801 is configured to:

determining a first total candidate power corresponding to the PSFCH of the terminal equipment according to the first candidate powers respectively corresponding to the PSFCH of each resource pool;

and under the condition that the first total candidate power is smaller than or equal to the second maximum power, determining the first candidate power corresponding to each resource pool PSFCH as the actual transmission power corresponding to each resource pool PSFCH.

Optionally, the processing device 801 is configured to:

determining a first sub-power corresponding to each PSFCH of the resource pool according to the number of PSFCH of each resource pool and the first candidate power corresponding to each PSFCH of the resource pool;

and determining the sum of the first sub-powers of the PSFCH of each resource pool as the first total candidate power.

Optionally, the processing device 801 is configured to:

comparing the first candidate powers corresponding to the resource pools PSFCH under the condition that the first total candidate power is larger than the second maximum power so as to determine the sequence from large to small of the first candidate powers corresponding to the resource pools PSFCH respectively;

adjusting the first candidate power corresponding to the 1 st resource pool PSFCH in the sequence from large to small to obtain the second candidate power corresponding to the 1 st resource pool PSFCH;

determining a second total candidate power corresponding to the PSFCH of the terminal equipment according to the second candidate power and the first candidate powers corresponding to PSFCH of other resource pools in the M resource pools;

when the second total candidate power is greater than the second maximum power, adjusting the first candidate power corresponding to the 2 nd resource pool PSFCH in the sequence from large to small until the second total candidate power corresponding to the PSFCH of the terminal equipment is less than or equal to the second maximum power after adjusting the first candidate power corresponding to the i-th resource pool PSFCH in the sequence from large to small; wherein i is a positive integer less than or equal to M;

Determining second candidate powers corresponding to the first i resource pools PSFCH in the sequence from large to small as actual transmission powers corresponding to the first i resource pools PSFCH respectively;

and determining the first candidate powers respectively corresponding to the i+1th to Mth resource pools PSFCH in the sequence from large to small as the actual transmission powers respectively corresponding to the i+1th to Mth resource pools PSFCH.

Optionally, the processing device 801 is configured to:

when the first total candidate power is larger than the second maximum power, adjusting first candidate power corresponding to a target resource pool PSFCH in each resource pool to obtain third candidate power corresponding to the target resource pool PSFCH; wherein, a third total candidate power corresponding to the PSFCH of the terminal device is less than or equal to the second maximum power, and the third total candidate power is determined based on the third candidate power and the first candidate powers corresponding to the PSFCH of other resource pools in each resource pool;

determining a third candidate power corresponding to the PSFCH of the target resource pool as an actual transmission power corresponding to the PSFCH of the target resource pool;

and determining the first candidate power corresponding to the PSFCH of the other resource pool as the actual transmission power corresponding to the PSFCH of the other resource pool.

Optionally, the processing device 801 is configured to:

acquiring initial power, a compensation coefficient and downlink path loss reported by the terminal equipment;

and determining the power control power according to the initial power, the compensation coefficient and the downlink path loss.

In the disclosure, the network device may determine the actual transmission power of the PSFCH according to the actually configured PSFCH transmission time-frequency resource and the resource pool corresponding to the PSFCH, so as to configure the actual transmission power for the PSFCH.

Referring to fig. 9, fig. 9 is a schematic structural diagram of another communication device according to an embodiment of the disclosure. In fig. 9, the communication apparatus 900 may be a network device, a terminal device, a chip system, a processor, or the like that supports the network device to implement the above method, or a chip, a chip system, a processor, or the like that supports the terminal device to implement the above method. The device can be used for realizing the method described in the method embodiment, and can be particularly referred to the description in the method embodiment.

The communications device 900 may include one or more processors 901. The processor 901 may be a general purpose processor or a special purpose processor, etc. For example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control communication devices (e.g., base stations, baseband chips, terminal equipment chips, DUs or CUs, etc.), execute computer programs, and process data of the computer programs.

Optionally, the communication device 900 may further include one or more memories 902, on which a computer program 904 may be stored, and the processor 901 executes the computer program 904, so that the communication device 900 performs the method described in the above method embodiments. Optionally, the memory 902 may also store data. The communication device 900 and the memory 902 may be provided separately or may be integrated.

Optionally, the communication device 900 may further comprise a transceiver 905, an antenna 906. The transceiver 905 may be referred to as a transceiver unit, transceiver circuitry, or the like, for implementing a transceiver function. The transceiver 905 may include a receiver, which may be referred to as a receiver or a receiving circuit, etc., for implementing a receiving function, and a transmitter; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., for implementing a transmitting function.

Optionally, one or more interface circuits 907 may also be included in the communications device 900. The interface circuit 907 is used to receive code instructions and transmit them to the processor 901. The processor 901 executes the code instructions to cause the communication device 900 to perform the methods described in the method embodiments described above.

The communication apparatus 900 is a network device: transceiver 905 is used to perform step 202 in fig. 2; step 303 in fig. 3; step 404 in fig. 4; step 505 in fig. 5; step 610 in fig. 6; step 707 in fig. 7.

In one implementation, a transceiver for implementing the receive and transmit functions may be included in processor 901. For example, the transceiver may be a transceiver circuit, or an interface circuit. The transceiver circuitry, interface or interface circuitry for implementing the receive and transmit functions may be separate or may be integrated. The transceiver circuit, interface or interface circuit may be used for reading and writing codes/data, or the transceiver circuit, interface or interface circuit may be used for transmitting or transferring signals.

In one implementation, the processor 901 may store a computer program 903, where the computer program 903 runs on the processor 901, and may cause the communication device 900 to perform the method described in the above method embodiment. The computer program 903 may be solidified in the processor 901, in which case the processor 901 may be implemented in hardware.

In one implementation, the communication apparatus 900 may include circuitry that may implement the functions of transmitting or receiving or communicating in the foregoing method embodiments. The processors and transceivers described in this disclosure may be implemented on integrated circuits (integrated circuit, ICs), analog ICs, radio frequency integrated circuits RFICs, mixed signal ICs, application specific integrated circuits (application specific integrated circuit, ASIC), printed circuit boards (printed circuit board, PCB), electronic devices, and the like. The processor and transceiver may also be fabricated using a variety of IC process technologies such as complementary metal oxide semiconductor (complementary metal oxide semiconductor, CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

The communication apparatus described in the above embodiment may be a network device, or a terminal device, but the scope of the communication apparatus described in the present disclosure is not limited thereto, and the structure of the communication apparatus may not be limited by fig. 9. The communication means may be a stand-alone device or may be part of a larger device. For example, the communication device may be:

(1) A stand-alone integrated circuit IC, or chip, or a system-on-a-chip or subsystem;

(2) A set of one or more ICs, optionally including storage means for storing data, a computer program;

(3) An ASIC, such as a Modem (Modem);

(4) Modules that may be embedded within other devices;

(5) A receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligent device, and the like;

(6) Others, and so on.

For the case where the communication device may be a chip or a chip system, reference may be made to the schematic structural diagram of the chip shown in fig. 10. The chip 1000 shown in fig. 10 includes a processor 1001 and an interface 1003. Wherein the number of processors 1001 may be one or more, and the number of interfaces 1003 may be a plurality.

For the case where the chip is used to implement the functions of the network device in the embodiments of the present disclosure:

an interface 1003 for performing step 202 in fig. 2; step 303 in fig. 3; step 404 in fig. 4; step 505 in fig. 5; step 610 in fig. 6; step 707 in fig. 7, and the like.

Optionally, the chip 1000 further comprises a memory 1002, the memory 1002 being for storing the necessary computer programs and data.

Those of skill in the art will further appreciate that the various illustrative logical blocks (illustrative logical block) and steps (step) described in connection with the embodiments of the disclosure may be implemented by electronic hardware, computer software, or combinations of both. Whether such functionality is implemented as hardware or software depends upon the particular application and design requirements of the overall system. Those skilled in the art may implement the described functionality in varying ways for each particular application, but such implementation is not to be understood as beyond the scope of the embodiments of the present disclosure.

The present disclosure also provides a readable storage medium having instructions stored thereon which, when executed by a computer, perform the functions of any of the method embodiments described above.

The present disclosure also provides a computer program product which, when executed by a computer, performs the functions of any of the method embodiments described above.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer programs. When the computer program is loaded and executed on a computer, the flow or functions described in accordance with the embodiments of the present disclosure are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer program may be stored in or transmitted from one computer readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means from one website, computer, server, or data center. The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

Those of ordinary skill in the art will appreciate that: the various numbers of first, second, etc. referred to in this disclosure are merely for ease of description and are not intended to limit the scope of embodiments of this disclosure, nor to indicate sequencing.

At least one of the present disclosure may also be described as one or more, a plurality may be two, three, four or more, and the present disclosure is not limited. In the embodiment of the disclosure, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "a", "B", "C", and "D", and the technical features described by "first", "second", "third", "a", "B", "C", and "D" are not in sequence or in order of magnitude.

The correspondence relationships shown in the tables in the present disclosure may be configured or predefined. The values of the information in each table are merely examples, and may be configured as other values, and the present disclosure is not limited thereto. In the case of the correspondence between the configuration information and each parameter, it is not necessarily required to configure all the correspondence shown in each table. For example, in the table in the present disclosure, the correspondence shown by some rows may not be configured. For another example, appropriate morphing adjustments, e.g., splitting, merging, etc., may be made based on the tables described above. The names of the parameters indicated in the tables may be other names which are understood by the communication device, and the values or expressions of the parameters may be other values or expressions which are understood by the communication device. When the tables are implemented, other data structures may be used, for example, an array, a queue, a container, a stack, a linear table, a pointer, a linked list, a tree, a graph, a structure, a class, a heap, a hash table, or a hash table.

Claims

1. A method for configuring PSFCH transmission power of a physical sidelink feedback channel, the method being performed by a network end, comprising:

2. The method of claim 1, wherein the determining the actual transmission power of the PSFCH according to the actually configured PSFCH transmission time-frequency resource and the resource pool corresponding to the PSFCH comprises:

determining the power control power of PSFCH on each resource pool;

3. The method of claim 2, wherein determining the actual transmission power respectively corresponding to the PSFCH of each resource pool according to the power control power, the first maximum power of the PSFCH of each resource pool, and the second maximum power supported by the terminal device on the PSFCH comprises:

4. The method of claim 3, wherein determining the actual transmission power respectively corresponding to each of the resource pools PSFCH according to the second maximum power and the first candidate power respectively corresponding to each of the resource pools PSFCH comprises:

5. The method of claim 4, wherein determining the first total candidate power corresponding to the PSFCH of the terminal device according to the first candidate powers corresponding to the PSFCH of each resource pool, respectively, comprises:

6. The method of claim 4, wherein the number of resource pools is M, wherein M is a positive integer, the method further comprising:

7. The method as recited in claim 4, further comprising:

8. The method of claim 2, wherein determining the power control power of the PSFCH on each resource pool comprises:

9. A communication device, comprising:

10. A communication device, characterized in that the device comprises a processor and a memory, the memory having stored therein a computer program, the processor executing the computer program stored in the memory to cause the device to perform the method according to any of claims 1 to 8.

11. A computer readable storage medium storing instructions which, when executed, cause the method of any one of claims 1 to 8 to be implemented.