CN112673680B

CN112673680B - Power determination method, device and equipment

Info

Publication number: CN112673680B
Application number: CN201980054876.5A
Authority: CN
Inventors: 陈文洪; 史志华
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2023-03-21
Anticipated expiration: 2039-08-15
Also published as: WO2021026898A1; CN112673680A

Abstract

The embodiment of the application provides a power determination method, a device and equipment, wherein the method comprises the following steps: acquiring at least one of a Transmission Rank Indication (TRI), a Transmission Precoding Matrix Indication (TPMI) or a sounding reference Signal Resource Indication (SRI); and determining the maximum transmission power of a Physical Uplink Shared Channel (PUSCH) of the terminal equipment according to at least one of TRI, TPMI or SRI. The uplink transmission performance is improved.

Description

Power determination method, device and equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a power determination method, apparatus, and device.

Background

Before the terminal device sends uplink data to the network device, the terminal device needs to determine actual uplink sending power and transmit the uplink data according to the actual sending power.

In the related art, the maximum transmission power and the desired transmission power of the terminal device are generally determined first, and the minimum value between the maximum transmission power and the desired transmission power of the terminal device is determined as the initial transmission power. The maximum transmission power is usually calculated according to a preset formula, so that the maximum transmission power of the terminal device is usually a fixed value. Since the maximum transmission power of the terminal device is a fixed value, when calculating the actual transmission power of the terminal device, it is necessary to process the determined initial transmission power according to whether the terminal device supports full power transmission, so as to obtain the actual transmission power. For example, if the terminal device supports full power transmission under the current transmission scheme and port configuration, the initial transmission power is determined as the actual transmission power; and if the terminal equipment does not support full power transmission under the current transmission scheme and port configuration, multiplying the initial transmission power by a preset attenuation coefficient to obtain the actual transmission power.

However, when the terminal device does not support full power transmission, the initial transmit power may not reach the maximum transmit power supported by the terminal device under the current transmission scheme and port configuration, that is, the terminal device may transmit uplink data according to the initial transmit power, but the actual transmit power calculated by the above method is smaller than the initial transmit power, so that the actual transmit power of the terminal device is smaller, resulting in poor uplink transmission performance.

Disclosure of Invention

The embodiment of the application provides a power determination method, a power determination device and power determination equipment, and improves uplink transmission performance.

In a first aspect, an embodiment of the present application provides a power determining method, including:

acquiring at least one of a Transmission Rank Indication (TRI), a Transmission Precoding Matrix Indication (TPMI) or a sounding reference Signal (SRI);

and determining the maximum transmission power of a Physical Uplink Shared Channel (PUSCH) of the terminal equipment according to at least one of the TRI, the transmission TPMI or the SRI.

In a second aspect, an embodiment of the present application provides a power determining apparatus, including a processing module, wherein,

the processing module is used for acquiring at least one of a Transmission Rank Indication (TRI), a Transmission Precoding Matrix Indication (TPMI) or a sounding reference Signal Resource Indication (SRI);

the processing module is used for determining the maximum transmission power of a Physical Uplink Shared Channel (PUSCH) of the terminal equipment according to at least one of TRI, TPMI or SRI.

In a third aspect, an embodiment of the present application provides a power determining apparatus, which includes a memory and a processor, where the processor executes program instructions in the memory, so as to implement the power determining method in the first aspect.

In a fourth aspect, an embodiment of the present application provides a storage medium for storing a computer program, where the computer program is used to implement the power determination method according to the first aspect when the computer program is executed by a computer or a processor.

In a fifth aspect, an embodiment of the present application provides a computer program product, which includes instructions that, when executed, cause a computer to execute the power determination method of the first aspect.

In a sixth aspect, an embodiment of the present application provides a system-on-chip or system-on-chip, where the system-on-chip or system-on-chip may be applied to a terminal device, and the system-on-chip or system-on-chip includes: at least one communication interface, at least one processor, at least one memory, the communication interface, the memory and the processor being interconnected by a bus, the processor causing the terminal device to perform the power determination method according to the first aspect by executing instructions stored in the memory.

According to the power determination method, the power determination device and the terminal equipment, the terminal equipment acquires at least one of TRI, TPMI or SRI, and determines the maximum transmission power of the PUSCH of the terminal equipment according to the at least one of TRI, TPMI or SRI. In the above process, at least one of TRI, TPMI, or SRI may reflect whether the terminal device may transmit at full power, so that the maximum transmission power determined by the above method is related to whether the terminal device supports full power transmission, and therefore, when the actual transmission power of the PUSCH of the terminal device is determined according to the maximum transmission power, power reduction is not required, the actual transmission power of the terminal device is improved, and further, the uplink transmission performance is improved.

Drawings

Fig. 1 is a schematic diagram of a communication system architecture to which the present invention is applicable;

fig. 2 is a schematic flowchart of a power determination method according to an embodiment of the present application;

fig. 3 is a schematic flowchart of another power determination method provided in an embodiment of the present application;

fig. 4 is a flowchart illustrating a method for determining a maximum transmission power adjustment value according to an embodiment of the present application;

fig. 5 is a schematic flowchart of another method for determining a maximum transmit power adjustment value according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a power determining apparatus according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of another power determination apparatus provided in an embodiment of the present application;

fig. 8 is a schematic diagram of a hardware structure of the power determination apparatus provided in the present application.

Detailed Description

For ease of understanding, first, the concepts related to the present application will be explained.

The technical solution shown in The present application may be applied to a fifth Generation mobile communication technology (5G) system, may also be applied to a Long Term Evolution (LTE) system, for example, a vehicle to all (V2X) system, a device to device (D2D) system, a Machine Type Communication (MTC) system, and The like in The LTE communication system, and may also be applied to a Universal Mobile Telecommunications System (UMTS), a terrestrial radio access network (UMTS) system, or a global system for mobile communications (UTRAN) system, or a GSM radio access network (GSM) architecture of a GSM/enhanced data rate for GSM evolution (EDGE) system. The technical solution shown in the present application may also be applied to other communication systems, for example, an evolved communication system of a 5G system, and the like, which is not limited in the present application.

The terminal equipment: the device is a device with wireless transceiving function. The terminal equipment can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; can also be deployed on the water surface (such as a ship and the like); and may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.). The terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a vehicle-mounted terminal device, a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety, a wireless terminal in city (smart city), a wireless terminal in smart home (smart home), a wearable terminal device, and the like. The terminal device according to the embodiments of the present application may also be referred to as a terminal, a User Equipment (UE), an access terminal device, a vehicle-mounted terminal, an industrial control terminal, a UE unit, a UE station, a mobile station, a remote terminal device, a mobile device, a UE terminal device, a wireless communication device, a UE agent, or a UE apparatus. The terminal equipment may also be fixed or mobile.

A network device: the device is a device with wireless transceiving function. Including but not limited to: an evolved Node B (eNB or eNodeB) in a Long Term Evolution (LTE), a base station (gnnodeb or gNB) or a transmission point (TRP) in a New Radio (NR) technology, a base station in a subsequent evolved system, an access Node in a wireless fidelity (WiFi) system, a wireless relay Node, a wireless backhaul Node, and the like. The base station may be: macro base stations, micro base stations, pico base stations, small stations, relay stations, or balloon stations, etc. Multiple base stations may support the same technology network as mentioned above, or different technologies networks as mentioned above. The base station may contain one or more co-sited or non co-sited TRPs. The network device may also be a wireless controller, a Centralized Unit (CU), and/or a Distributed Unit (DU) in a Cloud Radio Access Network (CRAN) scenario. The network device may also be a server, a wearable device, or a vehicle mounted device, etc. The following description will take a network device as an example of a base station. The multiple network devices may be base stations of the same type or different types. The base station may communicate with the terminal, or may communicate with the terminal through the relay station. The terminal may communicate with multiple base stations of different technologies, for example, the terminal may communicate with a base station supporting an LTE network, may communicate with a base station supporting a 5G network, may support dual connectivity with a base station of an LTE network and a base station of a 5G network, may support dual connectivity with a base station of a 5G network, and the like.

A precoding matrix: the matrix is used when the terminal equipment performs precoding on a data signal to be transmitted. The precoding matrix may be a matrix of M rows and N columns, M being a positive integer greater than or equal to 1, and N being a positive integer greater than or equal to 1. And N is the same as the layer number corresponding to the current transmission of the terminal equipment. M is the same as the number of PUSCH antenna ports configured for the terminal device. A row in the precoding matrix may also be referred to as one port of the precoding matrix, and the number of ports of the precoding matrix is M. If all elements of a certain row in the precoding matrix are zero, the row in the precoding matrix may also be referred to as a zero port in the precoding matrix, and if there are non-zero elements in a certain row in the precoding matrix, the row in the precoding matrix may also be referred to as a non-zero port in the precoding matrix. For example, assume a precoding matrix of

Since the first and second rows of the precoding matrix each include non-zero elements, the number of non-zero ports of the precoding matrix is 2. Since elements in the third and fourth rows of the precoding matrix are both zero, the number of zero ports of the precoding matrix is 2. As can be seen from the number of columns N =2 of the precoding matrix, the number of layers selected by the terminal device for current transmission is 2. As can be seen from the number of rows M =4 of the precoding matrix, the number of PUSCH antenna ports configured for the terminal device is 4.

Next, a scenario to which the communication method of the present application is applied will be described with reference to fig. 1.

Fig. 1 is a schematic diagram of a communication system architecture to which the present invention is applicable. Referring to fig. 1, a network device 101 and a terminal device 102 are included. The network device 101 and the terminal device 102 can communicate with each other.

Fig. 1 illustrates, by way of example only, one communication system architecture, and embodiments of the present application may also be applied to other communication system architectures, for example, other communication system architectures may include more network devices and/or more terminal devices. The communication system architecture to which the embodiments of the present application are applicable is not particularly limited.

In this application, before the terminal device sends uplink data to the network device, the terminal device may first obtain at least one of a Transmission Rank Indicator (TRI), a Transmission Precoding Matrix Indicator (TPMI), or a sounding reference Signal Resource Indicator (SRI), and determine a maximum transmission power of a Physical Uplink Shared Channel (PUSCH) of the terminal device according to at least one of the TRI, the TPMI, or the SRI. Since at least one of TRI, TPMI, or SRI can reflect whether the terminal device can transmit at full power, so that the maximum transmission power determined by the above method is related to whether the terminal device supports full power transmission, when the actual transmission power of the PUSCH of the terminal device is determined according to the maximum transmission power, power reduction is not required, the actual transmission power of the terminal device is improved, and further, the uplink transmission performance is improved.

The technical means shown in the present application will be described in detail below with reference to specific examples. It should be noted that the following embodiments may exist independently of each other or may be combined with each other, and descriptions of the same or similar contents are not repeated in different embodiments.

Fig. 2 is a schematic flowchart of a power determination method according to an embodiment of the present application. The execution subject in fig. 2 may be a terminal device. Referring to fig. 2, the method may include:

s201, acquiring at least one of TRI, TPMI or SRI.

The TRI is used to indicate the rank, and the rank indicates the number of layers corresponding to the current transmission of the terminal device. For example, the number of layers supported by the terminal device may include 1 layer, 2 layers, 3 layers, and 4 layers, and the number of layers corresponding to the current transmission of the terminal device may be one of the number of layers supported by the terminal device, for example, the number of layers corresponding to the current transmission of the terminal device may be 2 layers.

The TPMI is used to indicate a precoding matrix, and the TPMI and the precoding matrix may have a one-to-one correspondence.

The SRI is used to indicate SRS resources, for example, the SRI may indicate one SRS resource in a preset SRS resource set.

The terminal device may acquire at least one of the TRI, TPMI, or SRI by: the terminal device may receive Downlink Control Information (DCI) sent by the network device, and acquire at least one of TRI, TPMI, or SRI in the DCI. Alternatively, the TRI, TPMI, or SRI may be preset.

S202, determining the maximum transmission power of the PUSCH of the terminal equipment according to at least one of TRI, TPMI or SRI.

The maximum transmission power of the PUSCH of the terminal device may be determined by: and determining the maximum transmission power adjusting value of the terminal equipment according to at least one of TRI, TPMI or SRI, and determining the maximum transmission power of the PUSCH of the terminal equipment according to the preset transmission power of the terminal equipment and the maximum transmission power adjusting value of the terminal equipment. The preset transmission power is the maximum transmission power determined according to the power grade of the terminal equipment. For example, when the power class of the terminal device is 3, the preset transmission power is 23dBm. When the power class of the terminal device is 2, the preset transmission power is 26dBm. The difference between the preset transmission power and the maximum transmission power adjustment value may be determined as the maximum transmission power of the PUSCH of the terminal device.

Optionally, the terminal device may determine the actual transmission power of the PUSCH of the terminal device according to the maximum transmission power. The actual transmission power refers to the actual transmission power on each non-zero power PUSCH antenna port of the terminal device.

The actual transmission power of the PUSCH of the terminal device may be determined by: and determining the minimum value of the maximum transmission power and the expected transmission power of the PUSCH of the terminal equipment as the actual transmission total power, and averagely distributing the actual transmission total power to each non-zero-power PUSCH antenna port to obtain the actual transmission power on each non-zero-power PUSCH antenna port. Here, the actual total transmission power may be expressed in dBm. The non-zero power PUSCH antenna port refers to an antenna port for actually transmitting uplink data, the zero power PUSCH port refers to an antenna port for not transmitting the uplink data, and the non-zero power PUSCH antenna port corresponds to a non-zero port in the precoding matrix. The ratio of the linear value of the actual transmission total power to the number of non-zero-power PUSCH antenna ports may be used as the actual transmission power of each non-zero-power PUSCH antenna port. In the embodiment of the present application, when the unit of the transmission power is dBm, the value of the transmission power may be referred to as an index value, and when the unit of the transmission power is w (watts), the value of the transmission power may be referred to as a line row value.

Optionally, the total actual transmission power P of the PUSCH of the terminal device _PUSCH,b,f,c (i,j,q _d L) can be expressed by the following formula:

the maximum transmission power of the PUSCH of the terminal equipment is as follows: p is _CMAX,f,c (i)-k。P _CMAX,f,c (i) The preset transmission power may also be referred to as a preset maximum transmission power for the preset transmission power. k is the maximum transmit power adjustment value. The desired transmit power is as follows:

. i is an index of one-time PUSCH transmission, c is a serving cell identifier, f is a carrier identifier, b is a Bandwidth Part identifier, j is an open-loop power control parameter index, mu is subcarrier interval configuration, and l is a closed-loop power control process. P is _{O_PUSCH,b,f,c} (j) Is referred to as target power, alpha _b,f,c (j) It is referred to as the road loss factor,

is the PUSCH transmission bandwidth on active BWPb for carrier f of serving cell c. q. q.s _d Is an index of a reference signal for performing path loss measurement for obtaining a path loss value PL _b,f,c (q _d ) Is also an open loop power control parameter; f. of _b,f,c (i, l) is the closed loop power control adjustment factor.

The terminal equipment can also determine the power headroom of the PUSCH according to the maximum transmission power and transmit the power headroom to the network equipment.

For example, assuming that the power headroom reported by the terminal device is based on the actually transmitted PUSCH, the power headroom PH _type1,b,f,c (i,j,q _d L) can be as follows:

wherein, P _M,f,c (i) Determining, for the maximum transmit power of the PUSCH, according to at least one of TRI, TPMI, and SRI in the DCI scheduling the PUSCH, i.e., P _M,f,c (i)＝P _CMAX,f,c (i) -k. Other parameters are obtained according to the power control parameter of the PUSCH, and are the same as the expected transmission power calculation method, and are not described herein again.

For example, assuming that the power headroom reported by the terminal device is based on virtual PUSCH transmission, the power headroom PH _type1,b,f,c (i,j,q _d L) can be as follows:

P _M,f,c (i)-{P _{O_PUSCH,b,f,c} (j)+α _b,f,c (j)·PL _b,f,c (q _d )+f _b,f,c (i,l)}

wherein, P _M,f,c (i) Is a maximum transmission power obtained according to at least one of a preset SRI, a preset TPMI, and a preset TRI. For example, a preset TRI may indicate single layer transmission or full rank transmission; the preset TPMI may be a TPMI in which all ports are non-zero ports; the SRI value of the preset SRI indication is 0.

For example, assuming that the preset transmission power is 23dBm, and assuming that the expected transmission power is 20dBm, when the terminal device does not support full power transmission, according to the method in the prior art, the obtained actual total transmission power of the terminal device is determined as: 20dBm multiplied by a reduction factor less than 1, the resulting actual transmit power is less than 20dBm, which may be 17dBm, for example. According to the method of the present application, assuming that the maximum transmission power adjustment value determined is 3dBm, the maximum transmission power of the terminal device is 23-3=20dbm, and the actual transmission power determined is 20dBm (no further power reduction is required). From the above, the method disclosed in the present application can improve the actual transmission power of the terminal device.

The support of full power transmission in the present application means that the terminal device may use the preset transmission power P _CMAX,f,c (i) And sending uplink data.

According to the power determination method provided by the embodiment of the application, the terminal equipment acquires at least one of TRI, TPMI or SRI, and determines the maximum transmission power of the PUSCH of the terminal equipment according to the at least one of TRI, TPMI or SRI. In the above process, at least one of TRI, TPMI, or SRI may reflect whether the terminal device may transmit at full power, so that the maximum transmission power determined by the above method is related to whether the terminal device supports full power transmission, and therefore, when the actual transmission power of the PUSCH of the terminal device is determined according to the maximum transmission power, power reduction is not required, the actual transmission power of the terminal device is improved, and further, the uplink transmission performance is improved.

On the basis of any of the above embodiments, the power determination method is explained below with reference to fig. 3.

Fig. 3 is a schematic flowchart of another power determination method according to an embodiment of the present application. Referring to fig. 3, the method may include:

s301, the network equipment sends the DCI to the terminal equipment.

Wherein, the DCI comprises at least one of TRI, TPMI or SRI.

S302, the terminal equipment acquires at least one of TRI, TPMI or SRI in the DCI.

S303, the terminal equipment determines the maximum transmission power adjusting value of the terminal equipment according to at least one of TRI, TPMI or SRI.

For example, the maximum transmit power adjustment value for the terminal device may be denoted as k.

S304, the terminal equipment determines the maximum transmission power according to the preset transmission power of the terminal equipment and the maximum transmission power adjusting value of the terminal equipment.

For example, assume presetTransmission power of P _CMAX,f,c (i) Then the maximum transmission power is P _CMAX,f,c (i)-k。

It should be noted that the execution process of S303-S304 may refer to the execution process of S301, and is not described herein again.

S305, the terminal device determines the minimum value between the maximum transmission power and the expected transmission power as the actual total transmission power.

Wherein the expected transmission power is determined according to a preset formula.

For example, the desired transmit power is as follows:

the total power P actually transmitted _PUSCH,b,f,c (i,j,q _d L) is as follows: (in dBm)

S306, the terminal equipment determines the actual transmission power of each non-zero-power PUSCH antenna port according to the actual transmission total power and the number of the non-zero-power PUSCH antenna ports.

For example, assuming that the number of non-zero power PUSCH antenna ports is N, the actual transmission power of the non-zero power PUSCH antenna ports is

Wherein

Is P _PUSCH,b,f,c (i,j,q _d L) linear value.

In the embodiment shown in fig. 3, the terminal device may obtain at least one of TRI, TPMI, or SRI in the received DCI, and determine the maximum transmission power of the PUSCH of the terminal device according to the at least one of TRI, TPMI, or SRI. In the above process, at least one of TRI, TPMI, or SRI may reflect whether the terminal device may transmit at full power, so that the maximum transmission power determined by the above method is related to whether the terminal device supports full power transmission, and therefore, when the actual transmission power of the PUSCH of the terminal device is determined according to the maximum transmission power, power reduction is not required, the actual transmission power of the terminal device is improved, and further, the uplink transmission performance is improved.

On the basis of any of the above embodiments, a manner of determining the maximum transmission power adjustment value based on at least one of TRI, TPMI, or SRI is described below.

The first mode is as follows: according to the SRI, a maximum transmit power adjustment value is determined.

And when the number of SRS ports included in the sounding reference signal SRS resource indicated by the SRI is 1, determining that the maximum transmission power adjustment value of the terminal equipment is 0 (dB).

In this way, the terminal device can determine to obtain the maximum transmission power adjustment value according to the SRI, so that the terminal device can quickly determine to obtain the maximum transmission power adjustment value. When the maximum power adjustment value is 0dB, the terminal device can transmit uplink data at full power without power reduction, so that the uplink transmission power is higher, the uplink coverage is larger, and the uplink transmission performance is higher.

The second mode is as follows: and determining the maximum transmission power adjusting value according to the TRI.

And if the rank indicated by the TRI is equal to the number of PUSCH antenna ports configured for the terminal equipment, the maximum transmission power adjustment value of the terminal equipment is 0. Or, when the rank indicated by the TRI is equal to the number of SRS ports included in the SRS resource indicated by the SRI, the maximum transmission power adjustment value of the terminal device is 0.

In an embodiment, if the rank indicated by the TRI is less than the number of PUSCH antenna ports configured for the terminal device, or less than the number of SRS ports included in the SRS resource indicated by the SRI, it may be determined that the maximum transmission power adjustment value of the terminal device is greater than 0. In this case, the maximum transmission power adjustment value may be determined according to other parameters, but the present invention is not limited thereto.

The third mode is as follows: based on the TRI and TPMI, a maximum transmit power adjustment value is determined.

In an embodiment, if the rank indicated by the TRI is equal to the number of PUSCH antenna ports configured for the terminal device, or the TPMI or the precoding matrix indicated by the TPMI belongs to the set of precoding matrix information supporting full power transmission, the maximum transmission power adjustment value of the terminal device is 0. If the rank indicated by the TRI is less than the number of PUSCH antenna ports configured for the terminal device, and the precoding matrix indicated by the TPMI or the TPMI does not belong to the precoding matrix information set supporting full power transmission, it may be determined that the maximum transmission power adjustment value of the terminal device is greater than 0.

In another embodiment, if the rank indicated by the TRI is equal to the number of SRS ports included in the SRS resource indicated by the SRI, or the TPMI or the precoding matrix indicated by the TPMI belongs to the precoding matrix information set supporting full power transmission, the maximum transmission power adjustment value of the terminal device is 0. If the rank indicated by the TRI is smaller than the number of SRS ports included in the SRS resource indicated by the SRI and the precoding matrix indicated by the TPMI or the TPMI does not belong to the precoding matrix information set supporting full power transmission, it may be determined that the maximum transmission power adjustment value of the terminal device is greater than 0.

The fourth mode is that: and determining a maximum transmission power adjustment value according to the SRI and the TRI.

And when the number of SRS ports included in the SRS resource indicated by the SRI is greater than 1 and the rank indicated by the TRI is equal to the number of PUSCH antenna ports configured for the terminal equipment, determining that the maximum transmission power adjustment value of the terminal equipment is 0 (dB).

Alternatively, the first and second electrodes may be,

and when the number of SRS ports included in the SRS resource indicated by the SRI is greater than 1 and the rank indicated by the TRI is equal to the number of the SRS ports, determining that the maximum transmission power adjustment value of the terminal equipment is 0 (dB).

The rank indicated by the TRI is equal to the number of PUSCH antenna ports configured for the terminal device, and the rank indicated by the TRI is equal to the number of SRS ports included in the SRS resource indicated by the SRI, respectively, that the terminal device can transmit in full rank, that is, the terminal device can transmit in full power.

In this manner, after obtaining the SRI and the TRI, the terminal device may first determine whether the number of SRS ports included in the SRS resource indicated by the SRI is 1, and if not, then determine whether the terminal device can perform full power transmission according to the rank indicated by the TRI, and when it is determined that the terminal device can perform full power transmission, determine that the maximum transmission power adjustment value of the terminal device is 0dB. Therefore, the terminal equipment can determine to obtain the maximum transmission power adjusting value according to the SRI and the TRI, so that the terminal equipment can rapidly determine to obtain the maximum transmission power adjusting value. When the maximum power adjustment value is 0dB, the terminal device can transmit uplink data at full power without power reduction, so that the uplink transmission power is higher, the uplink coverage is larger, and the uplink transmission performance is higher.

The fifth mode is as follows: based on the SRI and TPMI, a maximum transmit power adjustment value is determined.

And when the number of SRS ports included in the SRS resource indicated by the SRI is more than 1 and the TPMI or the precoding matrix indicated by the TPMI belongs to the precoding matrix information set supporting full power transmission, determining that the maximum transmission power adjustment value of the terminal equipment is 0dB.

The set of precoding matrix information supporting full power transmission includes at least one TPMI supporting full power transmission, or at least one precoding matrix supporting full power transmission. The TPMI supporting full power transmission indicates that full power transmission can be performed on the uplink digital signal after the TPMI indicates the precoding matrix to precode the uplink digital signal. The precoding matrix supporting full power transmission means that after the precoding matrix is used for precoding the uplink digital signals, the uplink digital signals can be subjected to full power transmission.

The precoding matrix information set supporting full power transmission may be reported to the network device in advance for the terminal device, for example, the terminal device may determine the TPMI or the precoding matrix supporting full power transmission according to the maximum transmission power supported by each radio frequency channel. For example, if all radio frequency channels of the terminal device support full power transmission, the terminal device may determine that all supported TPMI or precoding matrices that may be indicated by all TPMI are included in the set of precoding matrix information. The terminal equipment can send the precoding matrix information set to the network equipment through the UE capability information. The precoding matrix information sets in the following description all refer to the precoding matrix information sets supporting full power transmission.

For example, the terminal device may indicate, in the UE capability information, which TPMI can support full power transmission by means of a bitmap (bitmap), where each bit corresponds to one TPMI, and when a TPMI supports full power transmission, the bit corresponding to the TPMI is 1, and when a TPMI does not support full power transmission, the bit corresponding to the TPMI is 0. The TPMI herein may include some or all of the TPMI that may be indicated in the DCI. Based on the bitmap, a TPMI set supporting full power transmission can be determined.

For example, the terminal device may indicate, in the UE capability information, which precoding matrices may support full power transmission by means of bitmap, where each bit corresponds to one precoding matrix, and when a precoding matrix supports full power transmission, the bit corresponding to the precoding matrix is 1, and when a precoding matrix does not support full power transmission, the bit corresponding to the precoding matrix is 0. The precoding matrix herein includes some or all of the precoding matrices that the TPMI may indicate. Based on the bitmap, a set of precoding matrices supporting full power transmission can be determined.

Optionally, the precoding matrix information set may include precoding matrix information corresponding to a plurality of different port numbers (or transmission layer numbers, or ranks) supported by the terminal device. For example, assuming that the terminal device can currently support PUSCH transmission for at most 4 ports, the precoding matrix information set may include precoding matrix information (TPMI or precoding matrix) corresponding to 2 ports and precoding matrix information (TPMI or precoding matrix) corresponding to 4 ports.

In this manner, after obtaining the SRI and the TPMI, the terminal device may first determine whether the number of SRS ports included in the SRS resource indicated by the SRI is 1, and if not, then determine whether the terminal device can perform full power transmission according to the TPMI, and when it is determined that the terminal device supports full power transmission, determine that the maximum transmission power adjustment value of the terminal device is 0dB. Therefore, the terminal equipment can determine and obtain the maximum transmission power adjusting value according to the SRI and the TPMI, so that the terminal equipment can rapidly determine and obtain the maximum transmission power adjusting value. When the maximum power adjustment value is 0, the terminal device can transmit uplink data at full power without power reduction, so that the uplink transmission power is higher, the uplink coverage is larger, and the uplink transmission performance is higher.

The sixth mode: based on the SRI and TPMI, a maximum transmit power adjustment value is determined.

And when the number of SRS ports included in the SRS resource indicated by the SRI is more than 1,TPMI or the precoding matrix indicated by the TPMI does not belong to the precoding matrix information set supporting full-power transmission, determining the maximum transmission power adjustment value of the PUSCH of the terminal equipment according to the number of non-zero ports and the number of first ports in the precoding matrix indicated by the TPMI. Wherein, first port quantity does: the number of SRS ports included in the SRS resource indicated by the SRI, or the number of ports of the precoding matrix indicated by the TPMI, or the number of maximum uplink transmission ports supported by the terminal device, or the maximum number of SRS ports supported by the terminal device in one SRS resource.

It should be noted that, the precoding matrix information set in this manner may refer to the description in the fifth manner, and is not described herein again.

Alternatively, the power adjustment value k may be determined according to the following formula: k =10 log ₂ (M/N), wherein N is the number of non-zero ports in the precoding matrix indicated by the TPMI, and M is the number of first ports.

In this manner, after obtaining the SRI and the TPMI, the terminal device may first determine whether the number of SRS ports included in the SRS resource indicated by the SRI is 1, and if not, then determine whether the precoding matrix indicated by the TPMI or the TPMI belongs to the precoding matrix information set supporting full power transmission, and if not, determine a power adjustment value according to the number of non-zero ports and the number of first ports in the precoding matrix indicated by the TPMI, thereby implementing attenuation of the maximum transmission power.

The seventh mode: according to the SRI, a maximum transmit power adjustment value is determined.

When the number of SRS ports included in the SRS resource indicated by the SRI is larger than 1, determining a maximum transmission power adjustment value of the terminal equipment according to the number of the SRS ports and a first corresponding relation, wherein the first corresponding relation is the corresponding relation between the number of the SRS ports and the maximum transmission power adjustment value.

The first corresponding relationship may be preset, and when the number of SRS ports is different, the corresponding maximum transmission power adjustment values are also different. The maximum transmission power adjustment value is not necessarily determined directly through the SRS ports, but may be obtained by using different formulas under different SRS port numbers.

For example, the first correspondence may be: when the number of SRS ports is 2, the maximum transmit power adjustment value is k =10 × log ₂ (M/N), wherein N is the number of non-zero ports in the precoding matrix indicated by the TPMI, and M is the number of SRS ports. When the number of SRS ports is 4, the maximum transmission power adjustment value is

In this way, when the number of SRS ports included in the SRS resource indicated by the SRI is greater than 1, the maximum transmit power adjustment value for determining the terminal device can be quickly determined and obtained according to the number of SRS ports and the first corresponding relationship.

The eighth mode: based on the SRI and TPMI, a maximum transmit power adjustment value is determined.

When the number of SRS ports included in the SRS resource indicated by the SRI is greater than 1 and the precoding matrix indicated by the TPMI or the TPMI does not belong to the precoding matrix information set supporting full power transmission, determining the maximum transmission power adjustment value of the terminal equipment according to the number of the SRS ports and a first corresponding relation, wherein the first corresponding relation is the corresponding relation between the number of the SRS ports and the maximum transmission power adjustment value.

For example, the first correspondence may be: when the number of SRS ports is 2, the maximum transmission power adjustment value is 3dBm. Alternatively, the first correspondence may be: when the number of SRS ports is 4, if half of the ports of the precoding matrix indicated by the TPMI are non-zero ports, the power adjustment value is 3dBm, and if one of the ports of the precoding matrix indicated by the TPMI is a non-zero port, the power adjustment value is 6dBm.

In this manner, after obtaining the SRI and the TPMI, the terminal device may first determine whether the number of SRS ports included in the SRS resource indicated by the SRI is 1, and if not, then determine whether the precoding matrix indicated by the TPMI or the TPMI belongs to a precoding matrix information set supporting full power transmission, and if not, determine a maximum transmission power adjustment value of the terminal device according to the number of SRS ports and the first corresponding relationship, thereby implementing attenuation of the maximum transmission power.

The ninth mode: based on the TPMI, a maximum transmit power adjustment value is determined.

Determining a maximum transmission power adjustment value of the terminal equipment according to the TPMI and a second corresponding relation, wherein the second corresponding relation is a corresponding relation between the TPMI and the maximum transmission power adjustment value, or the second corresponding relation is a corresponding relation between a precoding matrix indicated by the TPMI and the maximum transmission power adjustment value; and the second corresponding relation is determined according to the precoding matrix information set supporting full power transmission.

Optionally, when the precoding matrix indicated by the TPMI or the TPMI does not belong to the precoding matrix information set supporting full power transmission, the maximum transmission power adjustment value of the PUSCH of the terminal device may be determined according to the TPMI and the second corresponding relationship. Or, when the number of SRS ports included in the SRS resource indicated by the SRI is greater than 1 and the precoding matrix indicated by the TPMI or the TPMI does not belong to the precoding matrix information set supporting full power transmission, the maximum transmission power adjustment value of the PUSCH of the terminal device may be determined according to the TPMI and the second correspondence relationship.

The terminal device may determine the second corresponding relationship in advance according to the number of non-zero ports in the precoding matrix corresponding to the precoding matrix information set; the precoding matrix corresponding to the precoding matrix information set comprises: a precoding matrix included in the precoding matrix information set, or a precoding matrix indicated by the TPMI included in the precoding matrix information set. And determining that the obtained second corresponding relation is different according to different precoding matrix information sets. The different precoding matrix information sets mean that the TPMI included in the precoding matrix information sets are different or the included precoding matrices are different.

Taking the precoding matrix information set containing at least one precoding matrix as an example, the following second correspondence relationships corresponding to several different precoding matrix information sets are introduced, which may include the following cases (in the following cases, a precoding matrix refers to a precoding matrix that may be indicated by the TPMI):

in case 1, when all ports of any precoding matrix included in the precoding matrix information set are non-zero ports and a precoding matrix indicated by a current TPMI does not belong to the precoding matrix information set supporting full power transmission, a second correspondence relationship is as follows: k =10 log ₂ (T/N)。

Wherein, k is the maximum transmit power adjustment value, N is the number of non-zero ports in the precoding matrix indicated by the current TPMI, and T is the number of ports of the precoding matrix indicated by the current TPMI.

For example, assume that the precoding matrix indicated by the current TPMI is:

the number N =2 of non-zero ports of the precoding matrix, and the number T =4 of ports, then the maximum transmit power adjustment value determined according to the current TPMI and the second correspondence is:

for example, assume that the precoding matrix indicated by the current TPMI is:

the number N =1 of the non-zero ports of the precoding matrix, and the number T =4 of the ports, then the maximum transmit power adjustment value determined according to the current TPMI and the second correspondence is:

in case 2, when the precoding matrix information set includes all precoding matrices in the first precoding matrix set, and a precoding matrix indicated by the current TPMI does not belong to the precoding matrix information set supporting full power transmission, the second correspondence relationship is: k =3dB, or k =10 log ₂ (T/N)-3dB。

Wherein the first set of precoding matrices includes precoding matrices with non-zero ports for half of the precoding matrices potentially indicated by different TPMI, e.g.

And the like. N is the number of non-zero ports in the precoding matrix indicated by the current TPMI, and T is the number of ports of the precoding matrix indicated by the current TPMI.

For example, assume that the precoding matrix indicated by the current TPMI is:

if the number of non-zero ports of the precoding matrix N =1 and the number of ports T =4, the maximum transmit power adjustment value determined according to the current TPMI and the second mapping relationship is 3dB, or,

in case 3, when the precoding matrix information set includes a part of precoding matrices in the first precoding matrix set and a precoding matrix indicated by the current TPMI does not belong to the precoding matrix information set supporting full power transmission, for the part of TPMI, the second correspondence relationship is: k =3dB or k =10 log ₂ (T/N) -3dB; for another portion of the TPMI, the second correspondence is: k =6dB or k =10 log ₂ (T/N）。

Wherein, N is the number of non-zero ports in the precoding matrix indicated by the current TPMI, and T is the number of ports of the precoding matrix indicated by the current TPMI.

For example, assume that the set of precoding matrix information contains

And the precoding matrix (not included in the precoding matrix information set) indicated by the current TPMI is:

the number of non-zero ports of the precoding matrix N =2 and the number of ports T =4, and then the maximum transmit power adjustment value determined according to the TPMI and the second correspondence is set to be N

If the precoding matrix (not included in the precoding matrix information set) indicated by the current TPMI is:

the number of non-zero ports of the precoding matrix N =1 and the number of ports T =4, and then the maximum transmit power adjustment value determined according to the TPMI and the second correspondence is set to be N

Case 5, the Pre-knittingWhen the code matrix information set comprises a part of precoding matrixes in a second precoding matrix set and the precoding matrix indicated by the current TPMI does not belong to the precoding matrix information set supporting full power transmission, a second corresponding relation is as follows: k =3dB, or k =10 log ₂ (T/N)-3dB。

Wherein the second set of precoding matrices includes precoding matrices for which only one port is non-zero among precoding matrices that may be indicated by different TPMI, e.g. precoding matrices for which only one port is non-zero

For example, assume that the set of precoding matrix information includes that of the second set of precoding matrices

The precoding matrix indicated by the current TPMI is:

if the number of non-zero ports of the precoding matrix N =1 and the number of ports T =4, the maximum transmit power adjustment value determined according to the TPMI and the second correspondence is defined as

The above method is also applicable to the case that the precoding matrix information set includes at least one TPMI, and the specific method is similar to the above method and will not be described in detail here.

In this manner, after obtaining the SRI and the TPMI, the terminal device may first determine whether the number of ports of the SRS resource indicated by the SRI is 1, and if not, then determine whether the precoding matrix indicated by the TPMI or the TPMI belongs to a precoding matrix information set supporting full power transmission, and if not, determine the maximum transmission power adjustment value of the terminal device according to the number of SRS ports and the second correspondence relationship. Since the precoding matrix information set actually reflects different radio frequency configurations of the terminal (i.e. the maximum transmission power that each radio frequency channel can support), the maximum power adjustment value corresponding to each TPMI can be determined according to the maximum power of each radio frequency channel of the terminal corresponding to the precoding matrix information set by the method, so that the maximum power of each radio frequency channel can be reached when the terminal device performs uplink transmission by using the precoding matrix corresponding to the corresponding TPMI. Thereby improving the uplink transmission performance.

The first to ninth aspects may be present alone or in combination with each other.

Next, a procedure for determining the maximum transmission power adjustment value will be described with reference to fig. 4 by taking an example of a combination of the first, fourth, fifth, and sixth modes.

Fig. 4 is a flowchart illustrating a method for determining a maximum transmit power adjustment value according to an embodiment of the present disclosure. In the embodiment shown in fig. 4, the maximum transmit power adjustment value for the terminal device is determined from SRI, TRI, and TPMI. Referring to fig. 4, the method may include:

s401, the terminal equipment acquires the SRI, the TRI and the TPMI.

Optionally, the SRI, TRI, and TPMI may be obtained in the received DCI.

S402, the terminal equipment judges whether the number of SRS ports included in the SRS resource indicated by the SRI is 1.

If yes, go to step S406.

If not, go to step S403.

And S403, the terminal equipment judges whether the rank indicated by the TRI is equal to the number of PUSCH antenna ports configured for the terminal equipment.

If yes, go to step S406.

If not, go to S404.

It should be noted that, in S403, it may also be determined whether the rank indicated by the TRI is equal to the number of SRS ports included in the SRS resource indicated by the SRI.

S404, the terminal equipment judges whether the TPMI or the precoding matrix indicated by the TPMI belongs to a precoding matrix information set.

If yes, go to step S406.

If not, go to S405.

S405, the terminal equipment determines the maximum transmission power adjusting value of the terminal equipment according to the number of the non-zero ports and the number of the first ports in the precoding matrix indicated by the TPMI.

It should be noted that, the execution process of S405 may refer to the sixth manner, and details are not described herein.

S406, the terminal equipment determines that the maximum transmission power adjusting value of the terminal equipment is 0dB.

In the embodiment shown in fig. 4, after the SRI, the TRI, and the TPMI, the terminal device sequentially determines whether the SRI, the TRI, and the TPMI satisfy the condition of the full power transmission of the terminal device, and if one of the SRI, the TRI, and the TPMI satisfies the condition of the full power transmission of the terminal device, it determines that the maximum transmission power adjustment value is 0, and then the terminal device can transmit uplink data at the full power without power reduction, so that the uplink transmission power is higher, the uplink coverage is larger, and further the uplink transmission performance is higher. When the SRI, the TRI and the TPMI do not meet the condition of full power transmission of the terminal equipment, the terminal equipment determines the maximum transmission power adjusting value of the terminal equipment according to the number of the SRS ports and the first corresponding relation, and then attenuation of the maximum transmission power is realized.

Next, a procedure of determining the maximum transmission power adjustment value will be described with reference to fig. 5 by taking a combination of the first, fifth, and ninth aspects as an example.

Fig. 5 is a flowchart illustrating another method for determining a maximum transmit power adjustment value according to an embodiment of the present application. In the embodiment shown in fig. 4, the maximum transmit power adjustment value for the terminal device is determined based on the SRI and TPMI. Referring to fig. 5, the method may include:

s501, the terminal equipment determines a precoding matrix information set.

The terminal device may determine the TPMI or the precoding matrix that supports full power transmission, and determine a precoding matrix information set according to the TPMI or the precoding matrix that supports full power transmission, where the precoding matrix information set includes at least one TPMI or precoding matrix that supports full power transmission.

S502, the terminal equipment sends a precoding matrix information set to the network equipment.

The terminal equipment can send the precoding matrix information set to the network equipment through the UE capability information.

S503, the terminal equipment determines a second corresponding relation according to the precoding matrix information set.

It should be noted that, for the execution process of S503, reference may be made to the ninth manner, which is not described herein again.

In an actual application process, after determining that the second corresponding relationship is obtained, the terminal device may store the second corresponding relationship in a preset storage space, and correspondingly, when the terminal device needs to use the second corresponding relationship, the second corresponding relationship may be obtained in the preset storage space. In other words, it is not necessary to perform S501-S503 before each determination of the maximum transmission power adjustment value.

S504, the network equipment sends the DCI to the terminal equipment.

The DCI includes SRI and TPMI.

S505, the terminal equipment acquires the SRI and the TPMI in the DCI.

Optionally, the SRI and TPMI may be acquired in the received DCI.

S506, the terminal equipment judges whether the number of SRS ports included in the SRS resource indicated by the SRI is 1.

If yes, go to S509.

If not, go to S507.

S507, the terminal equipment judges whether the TPMI or the precoding matrix indicated by the TPMI belongs to the precoding matrix information set.

If yes, go to S509.

If not, go to S508.

And S508, the terminal equipment determines the maximum transmission power adjusting value of the terminal equipment according to the TPMI and the second corresponding relation.

Wherein, the second corresponding relation is the corresponding relation between the precoding matrix indicated by the TPMI and the maximum transmission power adjustment value.

It should be noted that, the execution process of S508 may refer to the ninth manner, and details are not described herein.

S509, the terminal device determines that the maximum transmission power adjustment value of the terminal device is 0dB.

In the embodiment shown in fig. 5, the terminal device may first determine the precoding matrix information set, and determine the second corresponding relationship according to the precoding matrix information set. After the terminal equipment is in the SRI and the TPMI, the terminal equipment sequentially judges whether the SRI and the TPMI meet the condition of full-power transmission of the terminal equipment, if one of the SRI and the TPMI meets the condition of full-power transmission of the terminal equipment, the maximum transmission power adjusting value is determined to be 0, then the terminal equipment can transmit uplink data at full power, power reduction is not needed, uplink transmission power is higher, uplink coverage is larger, and uplink transmission performance is higher. When the SRI and the TPMI do not satisfy the condition of the full power transmission of the terminal device, the terminal device determines the maximum transmission power adjustment value of the terminal device according to the TPMI and the second corresponding relationship, and since the precoding matrix information set actually reflects different radio frequency configurations of the terminal (i.e. the maximum transmission power that each radio frequency channel can support), the maximum power adjustment value corresponding to each TPMI can be determined according to the maximum power of each radio frequency channel of the terminal corresponding to the precoding matrix information set by the above method, so that the terminal device can reach the maximum power of each radio frequency channel when performing uplink transmission by using the precoding matrix corresponding to the corresponding TPMI, thereby improving the uplink transmission performance.

It should be noted that fig. 4 and fig. 5 illustrate the combination of the nine manners by way of example only, and of course, in an actual application process, any of the nine manners may also be combined by other manners, and this is not specifically limited in this embodiment of the present application.

Fig. 6 is a schematic structural diagram of a power determining apparatus according to an embodiment of the present application. Referring to fig. 6, the power determining apparatus 10 may include a processing module 11, wherein,

The power determining apparatus provided in the embodiment of the present application may implement the technical solutions shown in the above method embodiments, and the implementation principles and beneficial effects thereof are similar, and are not described herein again.

In a possible implementation, the processing module 11 is specifically configured to:

determining a maximum transmission power adjustment value of the terminal equipment according to at least one of the TRI, the TPMI or the SRI;

and determining the maximum transmission power according to the preset transmission power of the terminal equipment and the maximum transmission power adjusting value of the terminal equipment.

In a possible implementation manner, the preset transmission power is determined according to a power class of the terminal device.

In a possible implementation manner, if the number of SRS ports included in the SRS resource of the sounding reference signal indicated by the SRI is 1, the maximum transmission power adjustment value of the terminal device is 0.

In a possible implementation manner, when the number of SRS ports included in the SRS resource indicated by the SRI is greater than 1 and the rank indicated by the TRI is equal to the number of PUSCH antenna ports configured for the terminal device, the maximum transmission power adjustment value of the terminal device is 0; alternatively, the first and second electrodes may be,

and when the number of SRS ports included in the SRS resource indicated by the SRI is greater than 1 and the rank indicated by the TRI is equal to the number of SRS ports included in the SRS resource indicated by the SRI, the maximum transmission power adjustment value of the terminal equipment is 0.

In a possible embodiment, when the number of SRS ports included in the SRS resource indicated by the SRI is greater than 1, and the TPMI or the precoding matrix indicated by the TPMI belongs to a precoding matrix information set supporting full power transmission, the maximum transmission power adjustment value of the terminal device is 0.

when the number of SRS ports included in the SRS resource indicated by the SRI is greater than 1, and the TPMI or the precoding matrix indicated by the TPMI does not belong to the precoding matrix information set supporting full power transmission, determining a maximum transmission power adjustment value of the terminal equipment according to the number of non-zero ports and the number of first ports in the precoding matrix indicated by the TPMI;

wherein, the first port quantity does: the number of SRS ports included in the SRS resource indicated by the SRI, or the number of ports of the precoding matrix indicated by the TPMI, or the number of maximum uplink transmission ports supported by the terminal device, or the maximum number of SRS ports supported by the terminal device in one SRS resource.

determining the power adjustment value of the terminal equipment as follows according to the number of non-zero ports and the number of first ports in the precoding matrix indicated by the TPMI: 10 log ₂ (M/N)；

Wherein, N is the number of non-zero ports in the precoding matrix indicated by the TPMI, and M is the number of the first ports.

when the number of SRS ports included in the SRS resource indicated by the SRI is greater than 1, determining a maximum transmit power adjustment value of the terminal device according to the number of SRS ports and a first corresponding relationship, where the first corresponding relationship is a corresponding relationship between the number of SRS ports and the maximum transmit power adjustment value.

determining a maximum transmission power adjustment value of the terminal device according to the TPMI and a second corresponding relationship, where the second corresponding relationship is a corresponding relationship between the TPMI and the maximum transmission power adjustment value, or the second corresponding relationship is a corresponding relationship between a precoding matrix indicated by the TPMI and the maximum transmission power adjustment value;

and the second corresponding relation is determined according to a precoding matrix information set supporting full power transmission.

In a possible implementation manner, the processing module 11 is further configured to, before the processing module 11 determines the maximum transmission power adjustment value of the terminal device according to the TPMI and the second corresponding relationship, determine the second corresponding relationship according to the number of non-zero ports in the precoding matrix corresponding to the precoding matrix information set; wherein the precoding matrix corresponding to the precoding matrix information set comprises: a precoding matrix included in the precoding matrix information set, or a precoding matrix indicated by the TPMI included in the precoding matrix information set.

In a possible implementation manner, the second corresponding relationship determined according to different precoding matrix information sets is different.

Fig. 7 is a schematic structural diagram of another power determination apparatus according to an embodiment of the present application. In addition to the embodiment shown in fig. 6, referring to fig. 7, the power determining apparatus 10 may include a transceiver module 12, wherein,

the transceiver module 12 is configured to report the precoding matrix information set supporting full power transmission to a network device through UE capability information.

In one possible embodiment, the set of precoding matrix information includes at least one TPMI supporting full power transmission, or at least one precoding matrix supporting full power transmission.

In a possible implementation manner, the processing module 11 is further configured to, before the processing module 11 determines the maximum transmission power of the PUSCH of the terminal device according to at least one of a transmission rank indication TRI, a transmission precoding matrix indication TPMI, or a sounding reference signal resource indication SRI, acquire the TRI, the TPMI, and the SRI in downlink control information DCI scheduling the PUSCH.

In a possible implementation, the processing module 11 is further configured to:

and determining the actual transmission power of the PUSCH of the terminal equipment according to the maximum transmission power.

determining the minimum value of the maximum transmitting power and the expected transmitting power as the actual transmitting total power, wherein the expected transmitting power is determined according to a preset formula;

and averagely distributing the actual total transmission power to each non-zero-power PUSCH antenna port to obtain the actual transmission power on each non-zero-power PUSCH antenna port.

and determining the power margin of the PUSCH of the terminal equipment according to the maximum transmission power.

In a possible implementation, if the power headroom is determined according to actual PUSCH transmission, the TRI, the TPMI, and the SRI are obtained in scheduling DCI of the PUSCH; and/or the presence of a gas in the gas,

if the power headroom is determined according to virtual PUSCH transmission, the TRI is a preset TRI, the TPMI is a preset TPMI, and the SRI is a preset SRI.

Fig. 8 is a schematic diagram of a hardware structure of the power determination apparatus provided in the present application. Referring to fig. 8, the power determining apparatus 20 includes: a memory 21 and a processor 22, wherein the memory 21 and the processor 22 are in communication; illustratively, the memory 21 and the processor 22 are in communication via a communication bus 23, the memory 21 being configured to store a computer program, the processor 22 executing the computer program to implement the power determination method shown in the above-mentioned embodiments.

Optionally, the power determining means may further comprise a transmitter and/or a receiver.

Optionally, the Processor may be a Central Processing Unit (CPU), or may be another general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), or the like. The general purpose processor may be a microprocessor or the general purpose processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present application (steps in the embodiments of fig. 2-5) may be embodied directly in a hardware processor, or in a combination of hardware and software modules in a processor.

Embodiments of the present application provide a storage medium for storing a computer program, which when executed by a computer or a processor is used to implement the above power determination apparatus method.

Embodiments of the present application provide a computer program product comprising instructions that, when executed, cause a computer to perform the above-described power determination apparatus method.

The embodiment of the present application provides a system on chip or a system chip, where the system on chip or the system chip may be applied to a terminal device, and the system on chip or the system chip includes: the power determination device comprises at least one communication interface, at least one processor and at least one memory, wherein the communication interface, the memory and the processor are interconnected through a bus, and the processor enables the terminal equipment to execute the power determination device method by executing instructions stored in the memory.

All or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The foregoing program may be stored in a readable memory. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned memory (storage medium) includes: read-only memory (ROM), RAM, flash memory, hard disk, solid state disk, magnetic tape (magnetic tape), floppy disk (optical disk), and any combination thereof.

Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processing unit of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processing unit of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

In the present application, the terms "include" and variations thereof may refer to non-limiting inclusions; the term "or" and variations thereof may mean "and/or". The terms "first," "second," and the like in this application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. In the present application, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

Claims

1. A method of power determination, comprising:

acquiring at least one of a Transmission Rank Indication (TRI), a Transmission Precoding Matrix Indication (TPMI) or a sounding reference Signal Resource Indication (SRI);

determining the maximum transmission power of a Physical Uplink Shared Channel (PUSCH) of a terminal device according to at least one of TRI, TPMI or SRI, comprising:

and determining the maximum transmission power according to the difference value between the preset transmission power of the terminal equipment and the maximum transmission power adjusting value of the terminal equipment.

2. The method of claim 1, wherein the predetermined transmit power is determined according to a power class of the terminal device.

3. The method of claim 1, wherein if the number of SRS ports included in the SRS resource of the sounding reference signal indicated by the SRI is 1, the maximum transmit power adjustment value of the terminal device is 0.

4. The method of claim 1,

when the rank indicated by the TRI is equal to the number of PUSCH antenna ports configured for the terminal equipment, the maximum transmission power adjustment value of the terminal equipment is 0; alternatively, the first and second electrodes may be,

when the rank indicated by the TRI is equal to the number of SRS ports included in the SRS resource indicated by the SRI, the maximum transmission power adjustment value of the terminal equipment is 0; alternatively, the first and second electrodes may be,

when the number of SRS ports included in the SRS resource indicated by the SRI is greater than 1 and the rank indicated by the TRI is equal to the number of PUSCH antenna ports configured for the terminal device, setting a maximum transmission power adjustment value of the terminal device to 0; alternatively, the first and second electrodes may be,

5. The method of claim 1, wherein when the SRS resource indicated by the SRI includes SRS ports of which number is greater than 1, and the TPMI or the precoding matrix indicated by the TPMI belongs to a precoding matrix information set supporting full power transmission, the maximum transmission power adjustment value of the terminal device is 0.

6. The method of claim 1, wherein determining the maximum transmit power adjustment value for the terminal device based on at least one of the TRI, TPMI, or SRI comprises:

wherein, the number of the first ports is: the number of SRS ports included in the SRS resource indicated by the SRI, or the number of ports of the precoding matrix indicated by the TPMI, or the number of maximum uplink transmission ports supported by the terminal device, or the maximum number of SRS ports supported by the terminal device in one SRS resource.

7. The method of claim 6, wherein the determining the maximum transmission power adjustment value of the terminal device according to the number of non-zero ports and the number of first ports in the precoding matrix indicated by the TPMI comprises:

determining the power adjustment value of the terminal equipment as follows according to the number of non-zero ports and the number of first ports in the precoding matrix indicated by the TPMI: 10 log _2 (M/N);

8. The method of claim 1, wherein determining the maximum transmit power adjustment value for the terminal device based on at least one of the TRI, TPMI, or SRI comprises:

9. The method of claim 1, wherein determining the maximum transmit power adjustment value for the terminal device based on at least one of the TRI, TPMI, or SRI comprises:

10. The method of claim 9, wherein before determining the maximum transmit power adjustment value for the terminal device according to the TPMI and the second mapping relationship, further comprising:

determining the second corresponding relation according to the number of non-zero ports in the pre-coding matrix corresponding to the pre-coding matrix information set; wherein the precoding matrix corresponding to the precoding matrix information set comprises: a precoding matrix included in the precoding matrix information set, or a precoding matrix indicated by the TPMI included in the precoding matrix information set.

11. The method of claim 10, wherein the second mapping relationships determined according to different sets of precoding matrix information are different.

12. The method according to any one of claims 5, 6 and 9, further comprising:

and reporting the precoding matrix information set supporting full power transmission to network equipment through the UE capability information of the user equipment.

13. The method according to any of claims 5, 6, 9-11, wherein said set of precoding matrix information comprises at least one TPMI supporting full power transmission, or at least one precoding matrix supporting full power transmission.

14. The method according to any of claims 1-11, wherein before determining the maximum transmission power of the PUSCH of a terminal device according to at least one of a transmission rank indication TRI, a transmission precoding matrix indication TPMI, or a sounding reference signal resource indication SRI, further comprising:

and acquiring the TRI, the TPMI and the SRI in downlink control information DCI for scheduling the PUSCH.

15. The method according to any one of claims 1-11, further comprising:

16. The method of claim 15, wherein the determining the actual transmission power of the PUSCH of the terminal device according to the maximum transmission power comprises:

17. The method according to any one of claims 1-11, further comprising:

18. The method of claim 17,

if the power headroom is determined according to actual PUSCH transmission, the TRI, the TPMI, and the SRI are obtained in scheduling DCI of the PUSCH; and/or the presence of a gas in the gas,

19. A power determination apparatus, comprising a processing module, wherein,

the processing module is used for determining the maximum transmission power of a Physical Uplink Shared Channel (PUSCH) of the terminal equipment according to at least one of TRI, TPMI or SRI;

wherein the processing module is specifically configured to:

20. The apparatus of claim 19, wherein the predetermined transmit power is determined according to a power class of the terminal device.

21. The apparatus of claim 19, wherein if the number of SRS ports included in the SRS resource of the sounding reference signal indicated by the SRI is 1, the maximum transmission power adjustment value of the terminal device is 0.

22. The apparatus of claim 19,

when the number of SRS ports included in the SRS resource indicated by the SRI is greater than 1 and the rank indicated by the TRI is equal to the number of PUSCH antenna ports configured for the terminal device, the maximum transmission power adjustment value of the terminal device is 0; alternatively, the first and second electrodes may be,

23. The apparatus of claim 19,

and when the number of SRS ports included in the SRS resource indicated by the SRI is greater than 1 and the TPMI or the precoding matrix indicated by the TPMI belongs to a precoding matrix information set supporting full power transmission, the maximum transmission power adjustment value of the terminal equipment is 0.

24. The apparatus of claim 19, wherein the processing module is specifically configured to:

25. The apparatus of claim 24, wherein the processing module is specifically configured to:

according to the number of non-zero ports and the number of first ports in the precoding matrix indicated by the TPMI, determining that the power adjustment value of the terminal equipment is as follows: 10 log _2 (M/N);

26. The apparatus according to claim 19, wherein the processing module is specifically configured to:

27. The apparatus of claim 19, wherein the processing module is specifically configured to:

28. The apparatus of claim 27,

the processing module is further configured to, before the processing module determines the maximum transmission power adjustment value of the terminal device according to the TPMI and the second corresponding relationship, determine the second corresponding relationship according to the number of non-zero ports in the precoding matrix corresponding to the precoding matrix information set; wherein the precoding matrix corresponding to the precoding matrix information set comprises: a precoding matrix included in the precoding matrix information set, or a precoding matrix indicated by the TPMI included in the precoding matrix information set.

29. The apparatus of claim 28, wherein the second mapping relationship determined according to different precoding matrix information sets is different.

30. The apparatus of any one of claims 23, 24 and 27, further comprising a transceiver module, wherein,

the receiving and sending module is used for reporting the precoding matrix information set supporting full power transmission to network equipment through User Equipment (UE) capability information.

31. The apparatus according to any of claims 23, 24, 27-29, wherein the set of precoding matrix information comprises at least one TPMI supporting full power transmission or at least one precoding matrix supporting full power transmission.

32. The apparatus of any one of claims 19-29,

the processing module is further configured to, before the processing module determines the maximum transmission power of the PUSCH of the terminal device according to at least one of a transmission rank indication TRI, a transmission precoding matrix indication TPMI, or a sounding reference signal resource indication SRI, acquire the TRI, the TPMI, and the SRI in downlink control information DCI for scheduling the PUSCH.

33. The apparatus of any one of claims 19-29, wherein the processing module is further configured to:

34. The apparatus of claim 33, wherein the processing module is specifically configured to:

35. The apparatus of any one of claims 19-29, wherein the processing module is further configured to:

36. The apparatus of claim 35,

37. A power determination apparatus comprising a memory and a processor executing program instructions in the memory for implementing the power determination method of any of claims 1-18.

38. A storage medium for storing a computer program for implementing the power determination method of any one of claims 1-18 when executed by a computer or processor.

39. A system on chip for application to a terminal device, the system on chip comprising: at least one communication interface, at least one processor, at least one memory, the at least one communication interface, the at least one memory, and the at least one processor interconnected by a bus, the at least one processor causing the terminal device to perform the power determination method of any one of claims 1-18 by executing instructions stored in the at least one memory.

40. A system-on-chip for use with a terminal device, the system-on-chip comprising: at least one communication interface, at least one processor, at least one memory, the at least one communication interface, the at least one memory, and the at least one processor interconnected by a bus, the at least one processor causing the terminal device to perform the power determination method of any one of claims 1-18 by executing instructions stored in the at least one memory.