WO2015188513A1

WO2015188513A1 - Power control method, user equipment, base station, system, and storage medium

Info

Publication number: WO2015188513A1
Application number: PCT/CN2014/087271
Authority: WO
Inventors: 陈宪明; 戴博; 鲁照华; 夏树强; 刘锟; 石靖; 方惠英
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-06-12
Filing date: 2014-09-24
Publication date: 2015-12-17
Also published as: CN105282837A; CN105282837B

Abstract

Disclosed are a power control method, a user equipment, a base station, a system, and a storage medium. The method comprises: when the number of retransmissions of physical uplink shared channel (PUSCH) data is greater than K_PUSCH, sending retransmitted PUSCH data at a power less than or equal to a maximum transmit power; and when the number of retransmissions of physical uplink control channel (PUCCH) data is greater than K_PUSCH, sending retransmitted PUCCH data at a power less than or equal to the maximum transmit power, K_PUSCH and K_PUCCH being predefined values.

Description

Power control method, user equipment, base station and system, storage medium

Technical field

The present invention relates to a wireless communication technology, and in particular, to a power control method, a user equipment, a base station, a system, and a storage medium.

Background technique

Machine Type Communication (MTC), also known as Machine to Machine (M2M) User Equipment (UE), is the main application form of the Internet of Things at this stage. Low power consumption and low cost are important guarantees for large-scale applications. At present, M2M technology has been supported by internationally renowned manufacturers such as NEC, HP, CA, Intel, IBM, AT&T, and mobile operators of various countries. The M2M devices currently deployed on the market are mainly based on the Global System of Mobile communication (GSM) system. In recent years, due to the high spectrum efficiency of Long Term Evolution (LTE), more and more mobile operators have chosen LTE as the evolution direction of future broadband wireless communication systems. LTE-based M2M data services will also be more attractive.

However, the power control mechanism of the related art has a problem that the user equipment is low in energy efficiency and is not conducive to power saving of the user equipment in the MTC coverage enhancement scenario.

Summary of the invention

The embodiment of the present invention provides a power control method, a user equipment, a base station, a system, and a storage medium, and solves the problem that the power control mechanism of the related technology is low in energy efficiency of the user equipment and is not conducive to power saving of the user equipment in the MTC coverage enhancement scenario.

The technical solution of the embodiment of the present invention is implemented as follows:

In a first aspect, an embodiment of the present invention provides a power control method, where the method includes:

When the number of repeated transmissions of physical uplink shared channel (PUSCH) data is greater than K _PUSCH , the repeatedly transmitted PUSCH data is transmitted with a power less than or equal to the maximum transmit power;

When the number of repeated transmissions of physical uplink control channel (PUCCH) data is greater than K _PUCCH , the repeatedly transmitted PUCCH data is transmitted at a power less than or equal to the maximum transmit power;

Wherein, the K _PUSCH and the K _PUCCH are predefined values.

In a second aspect, an embodiment of the present invention provides a power control method, where the method includes:

When the number of repeated transmissions of the channel PUSCH data of the user equipment is greater than the K _PUSCH , notifying the power control parameter of the PUSCH data of the device-specific repeated transmission;

When the number of repeated transmissions of the channel PUCCH data of the user equipment is greater than the K _PUCCH , notifying the power control parameter of the PUCCH data of the device-specific repeated transmission;

Wherein, the K _PUSCH and the K _PUCCH are predefined values.

In a third aspect, an embodiment of the present invention provides a user equipment, where the user equipment includes:

a detecting unit and a transmitting unit; wherein

The detecting unit is configured to: when detecting that the number of repeated transmissions of the PUSCH data is greater than the K _PUSCH , trigger the transmitting unit to transmit the repeatedly transmitted PUSCH data with a power less than or equal to the maximum transmit power; and detect the repeated transmission times of the PUCCH data. When greater than K _PUCCH , triggering the transmitting unit to transmit the repeatedly transmitted PUCCH data with a power less than or equal to the maximum transmit power;

Wherein, the K _PUSCH and the K _PUCCH are predefined values.

In a fourth aspect, an embodiment of the present invention provides a base station, where the base station includes: a second determining unit and a second transmitting unit;

The second determining unit is configured to determine, when the number of repeated transmissions of the user equipment PUSCH data is greater than the K _PUSCH , the power control parameter of the repeatedly transmitted PUSCH data of the user equipment; and the repeated transmission of the PUCCH data of the user equipment When the number of times is greater than or K _PUCCH , determining a power control parameter of the repeatedly transmitted PUCCH data of the user equipment;

The second transmitting unit is configured to transmit the power control parameter to a corresponding user equipment.

Wherein, the K _PUSCH and the K _PUCCH are predefined values.

In a fifth aspect, an embodiment of the present invention provides a power control system, where the system includes:

And the user equipment is configured to: when the number of repeated transmissions of the PUSCH data is greater than the K _PUSCH , send the repeatedly transmitted PUSCH data with a power less than or equal to the maximum transmit power; when the number of repeated transmissions of the PUCCH data is greater than the K _PUCCH , the maximum is less than or equal to the maximum Transmitting the power of the power to transmit the repeatedly transmitted PUCCH data;

Wherein, the K _PUSCH and the K _PUCCH are predefined values.

According to a sixth aspect, an embodiment of the present invention provides a computer storage medium, where the computer storage medium stores computer executable instructions, where the computer executable instructions are used to execute the power control method provided by the foregoing first embodiment; and or,

The computer executable instructions are further for performing the power control method provided by the second aspect embodiment.

In the embodiment of the present invention, when the number of repeated transmissions of the PUSCH data is greater than the K _PUSCH , the repeatedly transmitted PUSCH data is transmitted with a power less than or equal to the maximum transmission power; when the number of repeated transmissions of the PUCCH data is greater than the K _PUCCH , less than or equal to The power of the maximum transmit power transmits the repeatedly transmitted PUCCH data; this avoids the problem that the user equipment always transmits at the maximum power, and solves the related power control mechanism, which reduces the energy efficiency of the user equipment in the MTC coverage enhancement scenario, and is disadvantageous to the user. The problem of equipment power saving.

DRAWINGS

1 is a schematic diagram 1 of an implementation flow of a power control method according to an embodiment of the present invention;

2 is a second schematic diagram of an implementation flow of a power control method according to an embodiment of the present invention;

3 is a functional structural diagram of a user equipment in an embodiment of the present invention;

4 is a functional structural diagram of a base station in an embodiment of the present invention;

Figure 5 is a schematic illustration of a power control system in accordance with an embodiment of the present invention.

detailed description

In order to make the objects, technical solutions and advantages of the present invention more comprehensible, the technical solutions of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the scope of the invention.

The power control mechanism of the physical uplink control channel (PUCCH, Physical Uplink Control Channel) of the existing LTE system is as follows:

P _T,PUCCH =min{P _MAX ,P _{O_PUCCH} +PL _DL +Δ _Format +δ _PUCCH },(1)

Where P _{T, PUCCH} represents the actual transmit power of the PUCCH data, the unit is decibel milliwatts (dBm), P _MAX represents the maximum transmit power of the user equipment (unit is dBm, for example, 23dBm), and P _{O_PUCCH} represents the PUCCH data of one transmission. Expected received power, P _{O_PUCCH} is a cell-specific nominal parameter P _{O_NOMINAL_PUCCH} notified to the user equipment through higher layer signaling, and a user-specific (UE-specific) parameter P _{O_UE_PUCCH} (in dBm) Addition, PL _DL represents the estimated downlink loss of the user equipment (in dB), Δ _Format is the power offset (in dB) related to the PUCCH format, and δ _PUCCH corresponds to the explicit closed-loop power control command from the network ( The unit is dB).

The power control mechanism of the Physical Uplink Shared Channel (PUSCH) of the existing LTE system is as follows:

P _T,PUSCH =min{P _MAX ,P _{O_PUSCH} +α·PL _DL +10·log ₁₀ (M)+Δ _MCS +δ _PUSCH },(2)

Where P _{T, PUSCH} represents the actual transmit power of the PUSCH data (in dBm), P _MAX represents the maximum user equipment transmit power (in dBm, eg, 23 dBm), and P _{O_PUSCH} represents the expected received power of the PUSCH data transmitted at a time, P _{O_PUSCH} equal notified to the user device by higher-layer signaling specific cell (cell-specific) in the name of the parameter P _{O_NOMINAL_PUSCH} with a user equipment specific (UE-specific) and the parameter P _{O_UE_PUSCH,} α = 1 represents full pathloss compensation , α < 1 indicates part of the path loss compensation, that is, the increased path loss is not fully compensated by the corresponding increase of the transmission power, PL _DL represents the downlink loss (in dB) estimated by the user equipment, and M represents the occupation of the PUSCH data transmission. The number of resource blocks, Δ _MCS represents the power offset of the Modulation and Coding Scheme (MCS) dependent on the PUSCH data, and the δ _PUSCH corresponds to the explicit closed loop power control command from the network.

In practical applications, the closed loop power control command field for PUSCH or PUCCH data power control includes 2 bits or 1 bit, corresponding to 4 types (corresponding to 2 bits) or 2 kinds of value sizes (corresponding to 1 bit), the δ _{The PUSCH} is a specific value corresponding to the closed-loop power control command field for PUSCH data power control, and the δ _PUCCH is a specific value corresponding to the closed-loop power control command field for PUCCH data power control.

Since some MTC user equipments are installed in the basement of a home, or are obscured by aluminum alloy windows or traditional thick-walled building structures, these user equipments experience considerable severity on the radio frequency interface compared to normal LTE user equipment. Penetration loss, which requires enhancement of the coverage of the above MTC user equipment to achieve normal data transmission. Specifically, the uplink physical channel that needs to be enhanced includes two channels, a physical uplink shared channel PUSCH and a physical uplink control channel PUCCH. Among them, the method of repeated transmission (for uplink, the repeated transmission is specifically a repeated transmission of PUSCH or PUCCH) is generally used to accumulate energy of sufficient useful signals to achieve coverage enhancement.

Since the power control mechanism in the related art is only designed preferentially for one transmission of PUSCH data or PUCCH data, there is no excessive consideration or optimization of PUSCH data or PUCCH data repetition transmission, and in the MTC coverage enhancement scenario, user equipment estimation Or the measured downlink path loss PL _DL is usually extremely large, so if the PUCCH and PUSCH power control mechanisms shown in equations (1) and (2) provided by the related art are still used in the case of repeated transmission, the user equipment will be The PUCCH and PUSCH data are always transmitted at the maximum power P _MAX in all subframes for PUCCH and PUSCH repeated transmission. Considering the control overhead, the user equipment in the MTC coverage enhancement mode may not support any potential PUCCH or PUSCH repetition times. Taking the PUSCH as an example, it is assumed that the number of PUSCH repetitions actually required by a certain MTC user equipment is X times according to the maximum transmission power P _{MAX of the} user equipment and the desired coverage. However, since the user equipment does not support X times, only Y times are supported. Repeated transmission of PUSCH, where Y is the minimum of all PUSCH repeated transmission times greater than X supported by the user equipment. In this case, in order to meet the coverage performance requirement, the user equipment can only select to perform Y PUSCH repeated transmission; However, this will result in unnecessary power consumption by the user equipment in subsequent YX repeated transmissions, thereby reducing the energy efficiency of the user equipment and ultimately degrading the power saving of the user equipment. In addition, similar problems exist for repeated transmission of PUCCH.

The embodiment of the present invention describes a power control method, which can be applied to a user equipment (also referred to as a terminal) in an MTC coverage enhancement scenario. As shown in FIG. 1 , the power control method according to the embodiment of the present invention includes the following steps:

Step 101: When the number of repeated transmissions of the PUSCH data is greater than the K _PUSCH , the repeatedly transmitted PUSCH data is transmitted with a power less than or equal to the maximum transmission power.

Step 102, when the number of repetitions of transmission of the PUCCH _PUCCH data is greater than K, less than or equal to the power of the transmission data is repeated transmission PUCCH maximum transmit power.

Wherein, the K _PUSCH and the K _PUCCH are predefined values.

As an implementation manner, before the sending the repeatedly transmitted PUSCH data, the method further includes:

The actual transmission power of the repeatedly transmitted PUSCH data is determined according to the power control parameter of the repeatedly transmitted PUSCH data or the repeated transmission number N _PUSCH of the repeated transmission of the PUSCH data.

As an implementation manner, the power control parameter packet of the repeatedly transmitted PUSCH data include:

User-specific parameters for network notifications.

As an implementation manner, the user equipment-specific parameters include:

a parameter set for repeated transmission of PUSCH data;

The parameters set for repeatedly transmitting PUSCH data include at least one of the following:

Repeating transmission of the expected received power P _{O_RPUSCH} corresponding to the PUSCH data; repeatedly transmitting the path loss compensation factor α _RPUSCH corresponding to the PUSCH data;

a first power offset parameter P _{RPUSCH_OFFSET_1} of the repeatedly transmitted PUSCH data, and a second power offset parameter P _{RPUSCH_OFFSET_2 of the} repeatedly transmitted PUSCH data; wherein the units of the first power offset parameter and the second power offset parameter are Decibel (dB) and the value is less than or equal to 0.

As an implementation manner, the determining, according to the power control parameter of the repeatedly transmitted PUSCH data, the actual transmit power of the repeatedly transmitted PUSCH data, including:

The actual transmit power of the repeatedly transmitted PUSCH data is determined according to the expected received power P _{O_RPUSCH} parameter of the repeatedly transmitted PUSCH data and the following equation:

P _T,RPUSCH =min{P _MAX ,P _{O_RPUSCH} +PL _DL +10·log ₁₀ (M)+Δ _MCS +δ _PUSCH }

Where P _{T, RPUSCH} represents the actual transmit power of the repeatedly transmitted PUSCH data (in dBm), P _MAX represents the maximum transmit power (in dBm, such as 23dBm), and P _{O_RPUSCH} represents the expected received power of the repeatedly transmitted PUSCH data ( The unit is dBm), PL _DL represents the downlink path loss estimation, M represents the number of resource blocks occupied by the primary PUSCH data transmission, Δ _MCS represents the power offset of the modulation coding scheme MCS depending on the PUSCH data, and δ _PUSCH corresponds to the network from the network. Clear closed loop power control commands. In a practical situation, the expected received power P _{O_RPUSCH of the} repeatedly transmitted PUSCH data is usually lower than -100 dBm, so the value range of the parameter P _{O_RPUSCH} should be kept sufficiently extended.

As an implementation manner, the power control parameter according to the repeatedly transmitted PUSCH data Number, determining the actual transmit power of the repeatedly transmitted PUSCH data, including:

The actual transmit power of the repeatedly transmitted PUSCH data is determined according to the path loss compensation factor α _{RPUSCH of the} repeatedly transmitted PUSCH data and the following equation:

P _T,RPUSCH =min{P _MAX ,P _{O_PUSCH} +PL _DL '+10·log ₁₀ (M)+Δ _MCS +δ _PUSCH }

PL _DL '=α _RPUSCH ·PL _DL

Where P _{T, RPUSCH} represents the actual transmit power of the repeatedly transmitted PUSCH data, P _MAX represents the maximum transmit power, P _{O_PUSCH} represents the expected received power of the PUSCH data transmitted once, PL _DL represents the downlink path loss estimate, and α _RPUSCH represents The path loss compensation factor of the repeatedly transmitted PUSCH data, M represents the number of resource blocks occupied by the primary PUSCH data transmission, Δ _MCS represents the power offset dependent on the PUSCH data MCS, and δ _PUSCH corresponds to the explicit closed loop power control command from the network.

As an implementation manner, the determining, according to a power control parameter of the repeatedly transmitted PUSCH data, determining an actual transmit power of the repeatedly transmitted PUSCH data, including:

The actual transmit power of the repeatedly transmitted PUSCH data is determined according to the expected received power P _{O_PUSCH of the} repeatedly transmitted PUSCH data and the path loss compensation factor parameter α _{RPUSCH of the} repeatedly transmitted PUSCH data, and the following equation:

P _T,RPUSCH =min{P _MAX ,P _{O_RPUSCH} +PL _DL '+10·log ₁₀ (M)+Δ _MCS +δ _PUSCH }

PL _DL '=α _RPUSCH ·PL _DL

Where P _{T, RPUSCH} represents the actual transmit power of the repeatedly transmitted PUSCH data, P _MAX represents the maximum transmit power, P _{O_RPUSCH} represents the expected received power of the repeatedly transmitted PUSCH data, PL _DL represents the downlink path loss estimate, α _RPUSCH represents The path loss compensation factor of the repeatedly transmitted PUSCH data, M represents the number of resource blocks occupied by the primary PUSCH data transmission, Δ _MCS represents the power offset of the MCS depending on the PUSCH data, and δ _PUSCH corresponds to the explicit closed loop power control from the network command.

The first repeat transmission power offset parameter of the PUSCH data _P RPUSCH_OFFSET_1, and the following equation to determine the actual transmission power of the PUSCH data is repeated transmission:

P _T,RPUSCH =min{P _MAX ,P'+P _{RPUSCH_OFFSET_1} }

_{_{P '= P O_PUSCH + PL DL}} + 10 · log 10 (M) + Δ MCS + δ PUSCH,

Where P _{T, RPUSCH} represents the actual transmit power of the repeatedly transmitted PUSCH data, P _MAX represents the maximum transmit power, P _{O_RPUSCH} represents the expected received power of the PUSCH data transmitted once, PL _DL represents the downlink path loss estimate, and M represents once The number of resource blocks occupied by PUSCH data transmission, Δ _MCS indicates the power offset dependent on the PUSCH data MCS, and δ _PUSCH corresponds to the explicit closed loop power control command from the network.

The actual transmit power of the repeatedly transmitted PUSCH data is determined according to the second power offset parameter P _{RPUSCH_OFFSET_2 of the} repeatedly transmitted PUSCH data, and the following equation:

_{P T, RPUSCH = P '+} P RPUSCH_OFFSET_2

P'=min{P _MAX , P _{O_PUSCH} +PL _DL +10·log ₁₀ (M)+Δ _MCS +δ _PUSCH };

Alternatively, determining the actual transmit power of the repeatedly transmitted PUSCH data according to the second power offset parameter P _{RPUSCH_OFFSET_2 of the} repeatedly transmitted PUSCH data, and the following equation:

P _{T, RPUSCH} = P _MAX + P _{RPUSCH_OFFSET_2} ,

Where P _{T, RPUSCH} represents the actual transmit power of the repeatedly transmitted PUSCH data, P _MAX represents the maximum transmit power, P _{O_RPUSCH} represents the expected received power of the PUSCH data transmitted once, PL _DL represents the downlink path loss estimate, and P _{RPUSCH_OFFSET_2} represents The second power offset parameter of the repeatedly transmitted PUSCH data, M represents the number of resource blocks occupied by the primary PUSCH data transmission, Δ _MCS represents the power offset of the PUSCH data MCS, and δ _PUSCH corresponds to the explicit closed loop power control from the network command.

For the following formula,

P _T,RPUSCH =P'+P _{RPUSCH_OFFSET_2}

P'=min{P _MAX , P _{O_PUSCH} +PL _DL +10·log ₁₀ (M)+Δ _MCS +δ _PUSCH },

Because wherein P 'may be viewed as a transmit power of PUSCH data transmission, taking into account further covered MTC extremely large path loss PL _DL scene will result in enhanced P' is always equal to the maximum transmit power P _MAX, so The above equation is equivalent to:

P _{T, RPUSCH} = P _MAX + P _{RPUSCH_OFFSET_2} ; considering the actual transmit power P _{T of the} repeatedly transmitted PUSCH data _{, the RPUSCH} and the maximum user equipment transmit power P _MAX usually have little difference, so to save the downlink control overhead, a second power offset value of the parameter _P RPUSCH_OFFSET_2 required to support a sufficiently large expansion.

Since the extremely large downlink path loss PL _DL in the MTC coverage enhancement scenario and the specific value δ _PUSCH corresponding to the existing closed-loop power control command field have a very low spread, the size of the δ _PUSCH does not _affect the above P' Always equal to the maximum power P _MAX , so that the existing closed-loop power control command will lose its meaning in this case; therefore, for the user equipment in the MTC coverage enhancement scenario, the existing closed-loop power control command field can be reused by the network. The second power offset P _{RPUSCH_OFFSET_2} field.

The user equipment determines the transmit power P _{T, RPUSCH} of the repeatedly transmitted PUSCH data according to the power control parameter of the repeatedly transmitted PUSCH data from the network, which is beneficial to the network according to the measurement results of interference and noise and path loss (for example, in a continuous period of time) The continuous statistics and averages within the system adjust the transmission power of the user equipment under the determined number of repeated transmissions N _{PUSCH in} time, thereby improving the flexibility of the uplink power control and facilitating power saving.

The actual transmit power of the repeatedly transmitted PUSCH data is determined according to the number of repeated transmissions N _{PUSCH of the} repeatedly transmitted PUSCH data and the following equation:

P _{T, RPUSCH} = min{P _MAX , P'-10·log ₁₀ (N _PUSCH )}

P'=P _{O_PUSCH} +PL _DL +10·log ₁₀ (M)+Δ _MCS +δ _PUSCH ,

Where P _{T, RPUSCH} represents the actual transmit power of the repeatedly transmitted PUSCH data, P _MAX represents the maximum transmit power, P _{O_RPUSCH} represents the expected received power of the PUSCH data transmitted once, PL _DL represents the downlink path loss estimate, and M represents once The number of resource blocks occupied by PUSCH data transmission, Δ _MCS represents the power offset of the MCS depending on the PUSCH data, and δ _PUSCH corresponds to an explicit closed loop power control command from the network. The user equipment determines the transmit power P _{T, RPUSCH of the} repeatedly transmitted PUSCH data according to the number of repeated transmissions N _PUSCH , which simplifies the implementation complexity of the network and saves downlink control signaling overhead.

As an embodiment, when the pilot symbol is transmitted, the method further includes:

Transmitting the pilot symbols at the same transmit power as the repeatedly transmitted PUSCH data symbols, or transmitting the pilot symbols at maximum power, wherein the pilot symbols are used to estimate PUSCH for repeated transmissions Channel fading of data.

As an implementation manner, before the radio resource control (RRC) connection is established, the method further includes:

The repeatedly transmitted PUSCH data is transmitted according to an existing power control mechanism, or the repeatedly transmitted PUSCH data is always transmitted at the maximum power.

As an implementation manner, before the sending the repeatedly transmitted PUCCH data, the method further includes:

The transmission power of the repeatedly transmitted PUCCH data is determined according to the power control parameter of the repeatedly transmitted PUCCH data or the repeated transmission times N _PUCCH of the PUCCH data.

As an implementation manner, the power control parameters of the repeatedly transmitting PUCCH data include

User-specific parameters for network notifications.

As an implementation manner, the user equipment-specific parameters include:

a parameter set for repeated transmission of PUCCH data;

The parameters set for repeatedly transmitting PUCCH data include at least one of the following:

Repeating transmission of the expected received power P _{O_RPUCCH} corresponding to the PUCCH data; repeatedly transmitting the path loss compensation factor α _RPUCCH corresponding to the PUCCH data;

a first power offset parameter P _{RPUCCH_OFFSET_1} of the repeatedly transmitted PUCCH data, and a second power offset parameter P _{RPUCCH_OFFSET_2 of the} repeatedly transmitted PUCCH data; wherein the units of the first power offset parameter and the second power offset parameter are dB and the value is less than or equal to 0.

As an implementation manner, the determining, according to the power control parameter of the repeatedly transmitted PUCCH data, the actual transmit power of the repeatedly transmitted PUCCH data, including:

The actual transmit power of the repeatedly transmitted PUCCH data is determined according to the expected received power P _{O_RPUCCH} parameter of the repeatedly transmitted PUCCH data and the following equation:

P _{T, RPUCCH} = min{P _MAX , P _{O_RPUCCH} +PL _DL +Δ _Format +δ _PUCCH },

Where P _{T, RPUCCH} represents the actual transmit power of the repeatedly transmitted PUCCH data, P _MAX represents the maximum transmit power (in dBm), and P _{O_RPUCCH} represents the expected received power of the repeatedly transmitted PUCCH data (in dBm), PL _DL represents the downlink path loss estimate, Δ _Format represents the power offset associated with the PUCCH format, and δ _PUCCH corresponds to the explicit closed-loop power control command from the network; in the actual case, the expected received power of the repeatedly transmitted PUCCH data P _{O_RPUCCH} is usually Below -100dBm, so the value range of P _{O_RPUCCH} should be kept wide enough.

The actual transmit power of the repeatedly transmitted PUCCH data is determined according to the path loss compensation factor α _{RPUCCH of the} repeatedly transmitted PUCCH data, and the following equation:

P _T,RPUCCH =min{P _MAX ,P _{O_PUCCH} +PL _DL '+Δ _Format +δ _PUCCH }

PL _DL '=α _RPUCCH ·PL _DL ,

Where P _{T, RPUCCH} represents the actual transmit power of the repeatedly transmitted PUCCH data, P _MAX represents the maximum transmit power, P _{O_RPUCCH} represents the expected received power of the PUCCH data transmitted once, PL _DL represents the downlink path loss estimate, α _RPUCCH represents The path loss compensation factor of the repeatedly transmitted PUCCH data, Δ _Format represents the power offset associated with the PUCCH format, and δ _PUCCH corresponds to the explicit closed loop power control command from the network.

The actual transmit power of the repeatedly transmitted PUCCH data is determined according to the expected received power P _{O_RPUCCH} of the repeatedly transmitted PUCCH data, the path loss compensation factor α _{RPUCCH of the} repeatedly transmitted PUCCH data, and the following equation:

P _T,RPUCCH =min{P _MAX ,P _{O_RPUCCH} +PL _DL '+Δ _Format +δ _PUCCH }

PL _DL '=α _RPUCCH ·PL _DL ,

Where P _{T, RPUCCH} represents the actual transmit power of the repeatedly transmitted PUCCH data, P _MAX represents the maximum transmit power, P _{O_RPUCCH} represents the expected received power of the repeatedly transmitted PUCCH data, PL _DL represents the downlink path loss estimate, α _RPUCCH represents The path loss compensation factor of the repeatedly transmitted PUCCH data, Δ _Format represents the power offset associated with the PUCCH format, and δ _PUCCH corresponds to the explicit closed loop power control command from the network.

The actual transmit power of the repeatedly transmitted PUCCH data is determined according to the first power offset parameter P _{RPUCCH_OFFSET_1 of the} repeatedly transmitted PUCCH data, and the following equation:

P _T,RPUCCH =min{P _MAX ,P'+P _{RPUCCH_OFFSET_1} }

P'=P _{O_PUCCH} +PL _DL +Δ _Format +δ _PUCCH ,

Where P _{T, RPUCCH} represents the actual transmit power of the repeatedly transmitted PUCCH data, P _MAX represents the maximum transmit power, P _{O_RPUCCH} represents the expected received power of the PUCCH data transmitted once, PL _DL represents the downlink path loss estimate, and Δ _Format is The power offset associated with the PUCCH format, δ _PUCCH corresponds to an explicit closed loop power control command from the network.

The actual transmit power of the repeatedly transmitted PUCCH data is determined according to the second power offset parameter P _{RPUCCH_OFFSET_2 of the} repeatedly transmitted PUCCH data and the following equation:

P _{T, RPUCCH} = P' + P _{RPUCCH_OFFSET_2}

P'=min{P _MAX , P _{O_PUCCH} +PL _DL +Δ _Format +δ _PUCCH },

Or determine the actual transmit power of the repeatedly transmitted PUCCH data according to the following equation:

P _{T, RPUCCH} = P _MAX + P _{RPUCCH_OFFSET_2} ,

Where P _{T, RPUCCH} represents the actual transmit power of the repeatedly transmitted PUCCH data, P _MAX represents the maximum transmit power, P _{O_RPUCCH} represents the expected received power of the PUSCH data transmitted once, PL _DL represents the downlink path loss estimate, and Δ _Format is PUCCH format associated with the power offset, δ _PUCCH corresponding to clear the closed loop power control commands from the network.

For the following formula,

P _{T, RPUCCH} = P' + P _{RPUCCH_OFFSET_2}

P'=min{P _MAX , P _{O_PUCCH} +PL _DL +Δ _Format +δ _PUCCH },

Since P' can be regarded as the transmission power of the PUCCH data transmitted at a time, it is further considered that the extremely large path loss PL _DL in the MTC coverage enhancement scenario will cause P' to always be equal to the maximum transmission power _PMAX , so The above equation is equivalent to:

P _{T, RPUCCH} = P _MAX + P _{RPUCCH_OFFSET_2} .

Considering the actual transmit power P _{T of the} repeatedly transmitted PUCCH data _{, the RPUCCH} and the maximum user equipment transmit power P _MAX usually have little difference, so to save the downlink control overhead, the value of the second power offset parameter P _{RPUCCH_OFFSET_2} There is no need to support a sufficiently large extension.

Since the extremely large downlink path loss PL _DL in the MTC coverage enhancement scenario and the specific value δ _PUCCH corresponding to the existing closed-loop power control command field have a very low spread, the size of the δ _PUCCH does not _affect the above P' Always equal to the maximum power P _MAX , that is, the existing closed-loop power control command will lose its meaning in this case; therefore, for the user equipment in the MTC coverage enhancement scenario, the existing closed-loop power control command field can be used by the network. _Reuse as the second power offset P _{RPUCCH_OFFSET_2} field.

The user equipment determines the transmit power P _{T, RPUCCH} of the repeatedly transmitted PUCCH data according to the power control parameter of the repeatedly transmitted PUCCH data from the network, which is beneficial to the network according to the measurement results of interference and noise and path loss (for example, in a continuous period of time) The continuous statistics and averaging within the time) adjust the transmission power of the user equipment under the determined number of repeated transmissions N _{PUCCH in} time, thereby improving the flexibility of the uplink power control and facilitating power saving.

The actual transmit power of the repeatedly transmitted PUCCH data is determined according to the number of repeated transmissions N _{PUCCH of the} repeatedly transmitted PUCCH data and the following equation:

P _{T, RPUCCH} = min{P _MAX , P'-10·log ₁₀ (N _PUCCH )}

P'=P _{O_PUCCH} +PL _DL +Δ _Format +δ _PUCCH ,

Where P _{T, RPUCCH} represents the actual transmit power of the repeatedly transmitted PUCCH data, P _MAX represents the maximum transmit power, P _{O_RPUCCH} represents the expected received power of the PUCCH data transmitted once, PL _DL represents the downlink path loss estimate, and Δ _Format represents The power offset associated with the PUCCH format, δ _PUCCH corresponds to an explicit closed loop power control command from the network. The user equipment determines the transmit power P _{T, RPUCCH of the} repeatedly transmitted PUCCH data according to the number of repeated transmissions N _PUCCH , which simplifies the implementation complexity of the network and saves downlink control signaling overhead.

Transmitting the pilot symbols at the same transmit power as the repeatedly transmitted PUCCH data symbols, or transmitting the pilot symbols at maximum power at all times; wherein the pilot symbols are used to estimate PUCCH for repeated transmissions Channel fading of data.

As an implementation manner, before the RRC connection is established, the method further includes:

The repeatedly transmitted PUCCH data is transmitted according to an existing power control mechanism; or, the repeatedly transmitted PUCCH data is always transmitted at the maximum power.

It should be noted that the selection of the uplink power control mechanism includes the following three methods in the specific implementation process: mode 1, the repeatedly transmitted PUCCH data is always provided according to the related technology (the foregoing has been explained) uplink power. The control mechanism may always transmit at the maximum power, but the repeatedly transmitted PUSCH data may be transmitted according to the network configuration according to the new uplink power control mechanism according to the embodiment of the present invention to implement optimization for repeated PUSCH transmission; The repeatedly transmitted PUSCH data is always transmitted according to the uplink power control mechanism of the existing (that is, the related art) or the maximum power is transmitted, but the repeatedly transmitted PUCCH data may be performed according to the network configuration according to the uplink power control mechanism described in the embodiment of the present invention. The transmission is performed to implement the optimization for the repeated PUCCH transmission. The third, the repeatedly transmitted PUCCH and the PUSCH data may be transmitted according to the network configuration according to the uplink power control mechanism described in the embodiment of the present invention to implement the PUCCH and PUSCH transmission for repeated transmission. Optimization.

Corresponding to the power control method shown in FIG. 1 , the embodiment of the present invention further describes a power control method, which can be applied to a base station side (also referred to as a network side) in an MTC coverage enhancement scenario, as shown in FIG. 2 . The power control method described in the embodiment of the present invention has the following steps:

Step 201: When the number of repeated transmissions of the PUSCH data of the user equipment is greater than the K _PUSCH , notify the user equipment of the power control parameters of the repeatedly transmitted PUSCH data.

Step 202: When the number of repeated transmissions of the PUCCH data of the user equipment is greater than the K _PUCCH , notify the user equipment of the power control parameters of the repeatedly transmitted PUCCH data.

Wherein said K _PUSCH K _PUCCH and a predefined value.

The execution of step 201 and step 202 is in no particular order.

As an implementation manner, the power control parameter for repeatedly transmitting PUSCH data includes:

a parameter set for repeated transmission of PUSCH data;

The first power offset parameter P _{RPUSCH_OFFSET_1} of the repeatedly transmitted PUSCH data, and the second power offset parameter P _{RPUSCH_OFFSET_2 of the} repeatedly transmitted PUSCH data.

As an implementation manner, the power control parameter for repeatedly transmitting PUCCH data includes:

a parameter set for repeated transmission of PUCCH data;

The first power offset parameter P _{RPUCCH_OFFSET_1 of the} repeatedly transmitted PUCCH data, and the second power offset parameter P _{RPUCCH_OFFSET_2 of the} repeatedly transmitted PUSCH data.

The embodiment of the invention further describes a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the power control method shown in FIG. 1 or FIG.

The embodiment of the invention further describes a user equipment. As shown in FIG. 3, the user equipment includes: a detecting unit 31 and a transmitting unit 32; wherein

The detection unit 31, when the number of repetitions is configured to transmit the detected data is greater than K PUSCH _PUSCH, PUSCH data triggering a power unit 32 equal to or less than the maximum transmit power for transmission of the transmit repeating transmission; PUCCH data detected When the number of repeated transmissions is greater than K _PUCCH , the transmitting unit 32 is triggered to transmit the repeatedly transmitted PUCCH data with a power less than or equal to the maximum transmission power; wherein the K _PUSCH and the K _PUCCH are predefined values.

As an implementation manner, the user equipment further includes:

The first determining unit 33 is configured to determine an actual transmit power of the repeatedly transmitted PUSCH data according to the power control parameter of the repeatedly transmitted PUSCH data or the repeated transmission times N _PUSCH of the repeatedly transmitted PUSCH data;

The transmitting unit 32 is further configured to transmit the repeatedly transmitted PUSCH data according to the actual transmit power.

As an implementation manner, the power control parameters of the repeatedly transmitted PUSCH data include:

User-specific parameters for network notifications.

As an implementation manner, the user equipment-specific parameters include:

a parameter set for repeated transmission of PUSCH data;

As an implementation manner, the first determining unit 33 is further configured to determine an actual transmit power of the repeatedly transmitted PUSCH data according to a desired received power P _{O_RPUSCH} parameter of the repeatedly transmitted PUSCH data and the following equation:

Where P _{T, RPUSCH} represents the actual transmit power of the repeatedly transmitted PUSCH data, P _MAX represents the maximum transmit power, P _{O_RPUSCH} represents the expected received power of the repeatedly transmitted PUSCH data, PL _DL represents the downlink path loss estimate, and M represents the primary PUSCH The number of resource blocks occupied by the data transmission, Δ _MCS represents the power offset of the modulation coding scheme MCS dependent on the PUSCH data, and the δ _PUSCH corresponds to an explicit closed loop power control command from the network.

As an implementation manner, the first determining unit 33 is further configured to determine an actual transmit power of the repeatedly transmitted PUSCH data according to the path loss compensation factor α _{RPUSCH of the} repeatedly transmitted PUSCH data, and the following equation:

PL _DL '=α _RPUSCH ·PL _DL

As an embodiment, the first determination unit 33 is further configured according to the path loss compensation factor parameter _α RPUSCH desired repeated transmission data received PUSCH power parameter P _{O_PUSCH} PUSCH and the repeated transmission data, and the following equation, is determined The actual transmit power of the repeatedly transmitted PUSCH data:

PL _DL '=α _RPUSCH ·PL _DL

As an implementation manner, the first determining unit 33 is further configured to determine an actual transmit power of the repeatedly transmitted PUSCH data according to the first power offset parameter P _{RPUSCH_OFFSET_1 of the} repeatedly transmitted PUSCH data, and the following equation:

P _T,RPUSCH =min{P _MAX ,P'+P _{RPUSCH_OFFSET_1} }

P'=P _{O_PUSCH} +PL _DL +10·log ₁₀ (M)+Δ _MCS +δ _PUSCH ,

As an implementation manner, the first determining unit 33 is further configured to determine an actual transmit power of the repeatedly transmitted PUSCH data according to the second power offset parameter P _{RPUSCH_OFFSET_2} that repeatedly transmits the PUSCH data, and the following equation:

_{P T, RPUSCH = P '+} P RPUSCH_OFFSET_2

P'=min{P _MAX , P _{O_PUSCH} +PL _DL +10·log ₁₀ (M)+Δ _MCS +δ _PUSCH };

Alternatively, according to a second power offset parameter _P RPUSCH_OFFSET_2 PUSCH transmission data is repeated, and the following equation to determine the actual transmission power of the PUSCH data is repeated transmission:

P _{T, RPUSCH} = P _MAX + P _{RPUSCH_OFFSET_2} ,

Where P _{T, RPUSCH} represents the actual transmit power of the repeatedly transmitted PUSCH data, P _MAX represents the maximum transmit power, P _{O_RPUSCH} represents the expected received power of the PUSCH data transmitted once, PL _DL represents the downlink path loss estimate, and P _{RPUSCH_OFFSET_2} represents The second power offset parameter of the repeatedly transmitted PUSCH data, M represents the number of resource blocks occupied by the primary PUSCH data transmission, Δ _MCS represents the power offset dependent on the PUSCH data MCS, and δ _PUSCH corresponds to the explicit closed loop power control from the network command.

As an implementation manner, the first determining unit 33 is further configured to determine an actual transmit power of the repeatedly transmitted PUSCH data according to the repeated transmission times N _{PUSCH of the} repeatedly transmitted PUSCH data and the following equation:

P _{T, RPUSCH} = min{P _MAX , P'-10·log ₁₀ (N _PUSCH )}

P'=P _{O_PUSCH} +PL _DL +10·log ₁₀ (M)+Δ _MCS +δ _PUSCH ,

Where P _{T, RPUSCH} represents the actual transmit power of the repeatedly transmitted PUSCH data, P _MAX represents the maximum transmit power, P _{O_RPUSCH} represents the expected received power of the PUSCH data transmitted once, PL _DL represents the downlink path loss estimate, and M represents once The number of resource blocks occupied by PUSCH data transmission, Δ _MCS represents the power offset of the MCS depending on the PUSCH data, and δ _PUSCH corresponds to an explicit closed loop power control command from the network.

As an embodiment, the transmitting unit 32 is further configured to: when transmitting a pilot symbol, transmit the pilot symbol with the same transmit power as the repeatedly transmitted PUSCH data symbol, or: The symbol is always transmitted at maximum power.

As an implementation manner, the transmitting unit 32 is further configured to transmit the repeatedly transmitted PUSCH data according to an existing power control mechanism before the RRC connection is established, or transmit the repeatedly transmitted PUSCH data at the maximum power.

As an implementation manner, the first determining unit 33 is further configured to determine, according to a power control parameter for repeatedly transmitting PUCCH data, a transmit power of the repeatedly transmitted PUCCH data; or, according to the repeated transmission times N _{PUCCH of the} repeatedly transmitted PUCCH data, The transmit power of the repeatedly transmitted PUCCH data.

As an embodiment, the power control parameters of the repeatedly transmitted PUCCH data include user equipment-specific parameters notified by the network.

As an implementation manner, the user equipment-specific parameters include:

a parameter set for repeated transmission of PUCCH data;

The first power offset parameter P _{RPUCCH_OFFSET_1} of the repeatedly transmitted PUCCH data, and the second power offset parameter P _{RPUCCH_OFFSET_2 of the} repeatedly transmitted PUCCH data.

As an embodiment, the first determining unit 33 is further configured to determine an actual transmit power of the repeatedly transmitted PUCCH data according to a desired received power P _{O_RPUCCH} parameter of the repeatedly transmitted PUCCH data and the following equation:

P _{T, RPUCCH} = min{P _MAX , P _{O_RPUCCH} +PL _DL +Δ _Format +δ _PUCCH },

Where P _{T, RPUCCH} represents the actual transmit power of the repeatedly transmitted PUCCH data, P _MAX represents the maximum transmit power, P _{O_RPUCCH} represents the expected received power of the repeatedly transmitted PUCCH data, PL _DL represents the downlink path loss estimate, and Δ _Format represents The power offset associated with the PUCCH format, δ _PUCCH corresponds to an explicit closed loop power control command from the network.

As an implementation manner, the first determining unit 33 is further configured to determine an actual transmit power of the repeatedly transmitted PUCCH data according to the path loss compensation factor α _{RPUCCH of the} repeatedly transmitted PUCCH data, and the following equation:

P _T,RPUCCH =min{P _MAX ,P _{O_PUCCH} +PL _DL '+Δ _Format +δ _PUCCH }

PL _DL '=α _RPUCCH ·PL _DL ,

As an implementation manner, the first determining unit 33 is further configured to determine the repeatedly transmitted PUCCH data according to the expected received power P _{O_RPUCCH} of the repeatedly transmitted PUCCH data, the path loss compensation factor α _{RPUCCH of the} repeatedly transmitted PUCCH data, and the following equation. Actual transmit power:

P _T,RPUCCH =min{P _MAX ,P _{O_RPUCCH} +PL _DL '+Δ _Format +δ _PUCCH }

PL _DL '=α _RPUCCH ·PL _DL ,

Where P _{T, RPUCCH} represents the actual transmit power of the repeatedly transmitted PUCCH data, P _MAX represents the maximum transmit power, P _{O_RPUCCH} represents the expected received power of the repeatedly transmitted PUCCH data, PL _DL represents the downlink path loss estimate, α _RPUCCH represents The path loss compensation factor of the PUCCH data is repeatedly transmitted, Δ _Format represents the power offset associated with the PUCCH format, and δ _PUCCH corresponds to the explicit closed loop power control command from the network.

As an implementation manner, the first determining unit 33 is further configured to determine an actual transmit power of the repeatedly transmitted PUCCH data according to the first power offset parameter P _{RPUCCH_OFFSET_1 of the} repeatedly transmitted PUCCH data, and the following equation:

P _T,RPUCCH =min{P _MAX ,P'+P _{RPUCCH_OFFSET_1} }

P'=P _{O_PUCCH} +PL _DL +Δ _Format +δ _PUCCH ,

As an implementation manner, the first determining unit 33 is further configured to determine an actual transmit power of the repeatedly transmitted PUCCH data according to the second power offset parameter P _{RPUCCH_OFFSET_2 of the} repeatedly transmitted PUCCH data, and the following equation:

P _{T, RPUCCH} = P' + P _{RPUCCH_OFFSET_2}

P'=min{P _MAX , P _{O_PUCCH} +PL _DL +Δ _Format +δ _PUCCH },

Alternatively, the actual transmit power of the repeatedly transmitted PUCCH data is determined according to the following equation:

P _{T, RPUCCH} = P _MAX + P _{RPUCCH_OFFSET_2} ,

As an implementation manner, the first determining unit 33 is further configured to determine an actual transmit power of the repeatedly transmitted PUCCH data according to the repeated transmission times N _{PUCCH of the} repeatedly transmitted PUCCH data and the following equation:

P _{T, RPUCCH} = min{P _MAX , P'-10·log ₁₀ (N _PUCCH )}

P'=P _{O_PUCCH} +PL _DL +Δ _Format +δ _PUCCH ,

Where P _{T, RPUCCH} represents the actual transmit power of the repeatedly transmitted PUCCH data, P _MAX represents the maximum transmit power, P _{O_RPUCCH} represents the expected received power of the PUCCH data transmitted once, PL _DL represents the downlink path loss estimate, and Δ _Format represents The power offset associated with the PUCCH format, δ _PUCCH corresponds to an explicit closed loop power control command from the network.

As an embodiment, the transmitting unit 32 is further configured to: when transmitting a pilot symbol, transmit the pilot symbol at the same transmit power as the repeatedly transmitted PUCCH data symbol, or: The symbol is always transmitted at maximum power.

As an implementation manner, the transmitting unit 32 is further configured to be before the RRC connection is established. The repeatedly transmitted PUCCH data is transmitted according to an existing power control mechanism; or, the repeatedly transmitted PUCCH data is always transmitted at the maximum power.

In a practical application, the detecting unit 31 and the first determining unit 33 may be a central processing unit (CPU), a digital signal processor (DSP), or a field programmable gate array (FPGA, Field) in the user equipment. Programmable Gate Array); the transmitting unit 32 can be implemented by a transmitter in the user equipment;

The embodiment of the present invention further describes a base station, which can perform power control in an MTC coverage enhancement scenario. As shown in FIG. 4, the base station includes: a second determining unit 41 and a second transmitting unit 42;

The second determining unit 41 is configured to: when the number of repeated transmissions of the user equipment PUSCH data is greater than the K _PUSCH , determine a power control parameter of the repeatedly transmitted PUSCH data of the user equipment; when the user equipment is Determining, by the user equipment, a power control parameter of the repeatedly transmitted PUCCH data when the number of repeated transmissions of the PUCCH data is greater than or K _PUCCH ;

The second transmitting unit 42 is configured to transmit the power control parameter to a corresponding user equipment.

Wherein said K _PUSCH K _PUCCH and a predefined value.

a parameter set for repeated transmission of PUSCH data;

a parameter set for repeated transmission of PUCCH data;

The expected received power corresponding to the PUCCH data P _{O_RPUCCH} ; the path loss compensation factor α _RPUCCH corresponding to the PUCCH data;

The embodiment of the invention further describes a power control system, which can be applied in an MTC coverage enhancement scenario, as shown in FIG. 5, including:

The user equipment 51 is configured to: when the number of repeated transmissions of the PUSCH data is greater than the K _PUSCH , transmit the repeatedly transmitted PUSCH data with a power less than or equal to the maximum transmit power; when the number of repeated transmissions of the PUCCH data is greater than the K _PUCCH , the _identifier is less than or equal to The power of the maximum transmit power transmits the repeatedly transmitted PUCCH data; wherein the K _PUSCH and the K _PUCCH are predefined values.

The system further includes: a base station 52, a power control parameter configured to notify the user equipment 51 of the repeatedly transmitted PUSCH data when the number of repeated transmissions of the PUSCH data of the user equipment 51 is greater than the K _PUSCH ; when the PUCCH of the user equipment 51 is PUCCH When the number of repeated transmissions of data is greater than or K _PUCCH , the power control parameter of the PUCCH data that is repeatedly transmitted by the user equipment 51 is notified.

As an implementation manner, the user equipment 51 is further configured to: before transmitting the repeatedly transmitted PUSCH data, determining the repeatedly transmitted PUSCH data according to the power control parameter of repeatedly transmitting the PUSCH data or the repeated transmission times N _PUSCH of repeatedly transmitting the PUSCH data. Actual transmit power.

The power control parameters of the repeatedly transmitted PUSCH data include:

The user equipment 51-specific parameters notified by the network; the user equipment-specific parameters include: parameters set for repeatedly transmitting PUSCH data; and the parameters set for repeatedly transmitting PUSCH data include at least the following One:

As an implementation manner, the user equipment 51 is further configured to determine an actual transmit power of the repeatedly transmitted PUSCH data according to a desired received power P _{O_RPUSCH} parameter of the repeatedly transmitted PUSCH data and the following equation:

As an implementation manner, the user equipment 51 is further configured to determine an actual transmit power of the repeatedly transmitted PUSCH data according to the path loss compensation factor α _{RPUSCH of the} repeatedly transmitted PUSCH data, and the following equation:

PL _DL '=α _RPUSCH ·PL _DL

As an embodiment, the user equipment 51 is further configured to determine a repetition according to a desired received power parameter P _{O_PUSCH of the} repeatedly transmitted PUSCH data and a path loss compensation factor parameter α _{RPUSCH of the} repeatedly transmitted PUSCH data, and the following equation. Actual transmit power of transmitted PUSCH data:

PL _DL '=α _RPUSCH ·PL _DL

As an implementation manner, the user equipment 51 is further configured to determine an actual transmit power of the repeatedly transmitted PUSCH data according to the first power offset parameter P _{RPUSCH_OFFSET_1 of the} repeatedly transmitted PUSCH data, and the following equation:

P _T,RPUSCH =min{P _MAX ,P'+P _{RPUSCH_OFFSET_1} }

_{_{P '= P O_PUSCH + PL DL}} + 10 · log 10 (M) + Δ MCS + δ PUSCH,

As an implementation manner, the user equipment 51 is further configured to determine an actual transmit power of the repeatedly transmitted PUSCH data according to the second power offset parameter P _{RPUSCH_OFFSET_2 of the} repeatedly transmitted PUSCH data, and the following equation:

_{P T, RPUSCH = P '+} P RPUSCH_OFFSET_2

P'=min{P _MAX , P _{O_PUSCH} +PL _DL +10·log ₁₀ (M)+Δ _MCS +δ _PUSCH }; or,

P _{T, RPUSCH} = P _MAX + P _{RPUSCH_OFFSET_2} ,

The user equipment determines the transmit power P _{T, RPUSCH} of the repeatedly transmitted PUSCH data according to the power control parameter of the repeatedly transmitted PUSCH data from the network, which is beneficial to the network according to the measurement results of interference and noise and path loss (for example, in a continuous period of time) The continuous statistics and averaging within the system adjust the transmission power of the user equipment under the determined number of repeated transmissions N _{PUSCH in} time, thereby improving the flexibility of the uplink power control and facilitating the power saving of the user equipment.

As an implementation manner, the user equipment 51 is further configured to determine an actual transmit power of the repeatedly transmitted PUSCH data according to the repeated transmission times N _{PUSCH of the} repeatedly transmitted PUSCH data, and the following equation:

P _{T, RPUSCH} = min{P _MAX , P'-10·log ₁₀ (N _PUSCH )}

_{_{P '= P O_PUSCH + PL DL}} + 10 · log 10 (M) + Δ MCS + δ PUSCH,

Where P _{T, RPUSCH} represents the actual transmit power of the repeatedly transmitted PUSCH data, P _MAX represents the maximum transmit power, P _{O_RPUSCH} represents the expected received power of the PUSCH data transmitted once, PL _DL represents the downlink path loss estimate, and M represents once The number of resource blocks occupied by PUSCH data transmission, Δ _MCS represents the power offset of the MCS depending on the PUSCH data, and δ _PUSCH corresponds to an explicit closed loop power control command from the network. The user equipment determines the transmit power P _{T, RPUSCH of the} repeatedly transmitted PUSCH data according to the number of repeated transmissions N _PUSCH , which simplifies the implementation complexity of the network and saves the downlink control signaling overhead.

As an embodiment, the user equipment 51 is further configured to: when transmitting a pilot symbol, transmit the pilot symbol with the same transmit power as the repeatedly transmitted PUSCH data symbol, or: The symbol is always transmitted at maximum power.

As an implementation manner, the user equipment 51 is further configured to transmit the repeatedly transmitted PUSCH data according to an existing power control mechanism before the RRC connection is established, or transmit the repeatedly transmitted PUSCH data at the maximum power.

As an embodiment, the user equipment 51 is further configured to: before transmitting the repeatedly transmitted PUCCH data, determine, according to the power control parameter of the repeatedly transmitted PUCCH data, the transmit power of the repeatedly transmitted PUCCH data; or, according to the repetition of repeatedly transmitting the PUCCH data The number of transmissions N _PUCCH determines the transmission power of the repeatedly transmitted PUCCH data.

The power control parameter of the repeatedly transmitted PUCCH data includes parameters specific to the user equipment 51 notified by the network; the power control parameters of the repeatedly transmitted PUCCH data, including: parameters set for repeatedly transmitting PUCCH data The parameters set for repeatedly transmitting PUCCH data include at least one of the following:

As an embodiment, the user equipment 51 is further configured to determine an actual transmit power of the repeatedly transmitted PUCCH data according to a desired received power P _{O_RPUCCH} parameter of the repeatedly transmitted PUCCH data and the following equation:

P _{T, RPUCCH} = min{P _MAX , P _{O_RPUCCH} +PL _DL +Δ _Format +δ _PUCCH },

As an implementation manner, the user equipment 51 is further configured to determine an actual transmit power of the repeatedly transmitted PUCCH data according to a path loss compensation factor α _{RPUCCH of the} repeatedly transmitted PUCCH data, and the following equation:

P _T,RPUCCH =min{P _MAX ,P _{O_PUCCH} +PL _DL '+Δ _Format +δ _PUCCH }

PL _DL '=α _RPUCCH ·PL _DL ,

As an embodiment, the user equipment 51 is further configured to determine the repeatedly transmitted PUCCH data according to the expected received power P _{O_RPUCCH} of the repeatedly transmitted PUCCH data, the path loss compensation factor α _{RPUCCH of the} repeatedly transmitted PUCCH data, and the following equation. Actual transmit power:

P _T,RPUCCH =min{P _MAX ,P _{O_RPUCCH} +PL _DL '+Δ _Format +δ _PUCCH }

PL _DL '=α _RPUCCH ·PL _DL ,

As an implementation manner, the user equipment 51 is further configured to determine an actual transmit power of the repeatedly transmitted PUCCH data according to the first power offset parameter P _{RPUCCH_OFFSET_1 of the} repeatedly transmitted PUCCH data, and the following equation:

P _T,RPUCCH =min{P _MAX ,P'+P _{RPUCCH_OFFSET_1} }

P'=P _{O_PUCCH} +PL _DL +Δ _Format +δ _PUCCH ,

As an implementation manner, the user equipment 51 is further configured to determine an actual transmit power of the repeatedly transmitted PUCCH data according to the second power offset parameter P _{RPUCCH_OFFSET_2 of the} repeatedly transmitted PUCCH data and the following equation:

P _{T, RPUCCH} = P' + P _{RPUCCH_OFFSET_2}

P'=min{P _MAX , P _{O_PUCCH} +PL _DL +Δ _Format +δ _PUCCH },

P _{T, RPUCCH} = P _MAX + P _{RPUCCH_OFFSET_2} ,

The user equipment determines the transmit power P _{T, RPUCCH} of the repeatedly transmitted PUCCH data according to the power control parameters of the repeatedly transmitted PUCCH data from the network, which facilitates the network according to the measurement results of interference and noise and path loss (for example, in continuous time periods) The continuous statistics and averaging within the time) adjust the transmission power of the user equipment under the determined number of repeated transmissions N _{PUCCH in} time, thereby improving the flexibility of the uplink power control and facilitating power saving.

As an implementation manner, the user equipment 51 is further configured to determine an actual transmit power of the repeatedly transmitted PUCCH data according to the repeated transmission times N _{PUCCH of the} repeatedly transmitted PUCCH data and the following equation:

P _{T, RPUCCH} = min{P _MAX , P'-10·log ₁₀ (N _PUCCH )}

P'=P _{O_PUCCH} +PL _DL +Δ _Format +δ _PUCCH ,

As an embodiment, the user equipment 51 is further configured to: when transmitting a pilot symbol, transmit the pilot symbol at the same transmit power as the repeatedly transmitted PUCCH data symbol, or use the pilot symbol Always transmit at maximum power.

As an implementation manner, the user equipment 51 is further configured to transmit the repeatedly transmitted PUCCH data according to an existing power control mechanism before the RRC connection is established; or, the PUCCH data that is repeatedly transmitted is always transmitted at the maximum power.

It should be noted that the selection of the uplink power control mechanism includes the following three methods in the specific implementation process: First, the repeatedly transmitted PUCCH data is always performed according to the existing uplink power control mechanism or always at the maximum power P _MAX . The PUSCH data that is transmitted but repeatedly transmitted may be transmitted according to the network configuration according to the new uplink power control mechanism according to the embodiment of the present invention to implement optimization for repeated PUSCH transmission. Second, the repeatedly transmitted PUSCH data is always in accordance with the existing The uplink power control mechanism may always transmit at the maximum power P _MAX , but the repeatedly transmitted PUCCH data may be transmitted according to the network configuration according to the new uplink power control mechanism according to the embodiment of the present invention to implement optimization for repeated PUCCH transmission. Third, the repeatedly transmitted PUCCH or PUSCH data may be transmitted according to the network configuration according to the new uplink power control mechanism according to the embodiment of the present invention to implement optimization for repeated PUCCH or PUSCH transmission.

The following description will be made in conjunction with specific embodiments.

Specific embodiment 1

The network (corresponding base station) determines a power level of the noise and a power level of the interference from the neighboring cell, and determines an uplink path loss according to at least one of the following: an uplink sounding reference signal (SRS, Sounding Reference Signal) from the user equipment; Access (RA, Random Access) signal; feedback from the user equipment regarding downlink path loss measurements. The network determines the repeated transmission times N _PUSCH of the repeatedly transmitted PUSCH data and the expected received power P _{O_RPUSCH of the} corresponding repeatedly transmitted PUSCH data according to the power level of the noise and interference and the uplink path loss, and repeats the transmitted PUSCH The number of repeated transmissions of data N _PUSCH and the expected received power P _{O_RPUSCH are} notified to the user equipment. Alternatively, the network and the user equipment determine, according to the repeated transmission times N _RA of the uplink RA signals repeatedly transmitted from the user equipment, the number of repeated transmissions of the repeatedly transmitted PUSCH data N _PUSCH , the power level of the network according to the noise and interference, and the uplink The loss determines the expected received power P _{O_RPUSCH of the} repeatedly transmitted PUSCH data, and notifies the user equipment of the desired received power P _{O_RPUSCH} .

In the implementation process, the network determines the number of repeated transmissions N _PUSCH according to the power level of the noise and interference and the uplink path loss, and the corresponding expected received power P _{O_RPUSCH} includes:

Determining a desired transmit power P _A of the PUSCH data for one transmission according to the power level of the interference and the noise and the uplink path loss; determining the PUSCH data of the repeatedly transmitted according to the expected transmit power P _A and the maximum transmit power P _{MAX of the} user equipment. The first repeated transmission times R _A ; wherein, R _A is the number of repeated transmissions required by the user equipment when the user equipment is always transmitting with the maximum power P _MAX ; determining the repetition according to the R _A and the set of repeated transmission times supported by the user equipment a second repeated transmission number R _{B of the} transmitted PUSCH data; wherein the R _B is a minimum value of all elements greater than or equal to R _A belonging to the set of repeated transmission times supported by the user equipment; the second repeated transmission number R _B is equal to the number of repeated transmissions of the actual repeatedly transmitted PUSCH data N _PUSCH . R _B according to a desired transmit power and a transmit repeating determining a desired P _A PUSCH data transmission times of the R _B transmit power P _B; P _A according to the between P _B and the power difference (unit is dB), and receiving a desired transmission power P _{O_PUSCH} repeating determining a desired transmission power received _P O_RPUSCH.

In this embodiment, it is assumed that the number of repeated transmissions of the _PUSCH N _{PUSCH is} greater than the predefined value K _PUSCH ; it is assumed that the maximum transmit power P _{MAX of the} user equipment is 23 dBm, and the expected received power P _{O_RPUSCH of the} repeatedly transmitted PUSCH data is -120 dBm. It is clear that the closed-loop power control command δ _PUSCH takes a value of 0 dB, and the downlink path loss PL _DL estimated by the user equipment is approximately 130 dB; it is assumed that the number of resource blocks M occupied by one PUSCH data transmission is five; It occupies 12 consecutive subcarriers in the frequency domain and contiguous 14 Orthogonal Frequency Division Multiplexing (OFDM) symbols in the time domain, so each resource block includes 168 (=12×14) Resource unit (RE, Resource Element); additionally, since 2 of the 14 OFDM symbols are used to carry pilots, the remaining 12 OFDM symbols are used to carry PUSCH data, so each resource block includes 144 (=12) ×12) resource units for carrying PUSCH data;

It is further envisaged that the user equipment obtains the power offset Δ _MCS value of the _MCS used depending on the PUSCH data according to the following equation:

Where K is the transport block size (TBS), N _RE is the number of resource units carrying the PUSCH data in the M resource blocks, and L is the number of valid information bits carried by each resource unit. If the value of K is assumed to be 1000, the user equipment can determine that the value of Δ _MCS is approximately 3.7 dB by the following procedure:

Δ _MCS = 10·log ₁₀ (2 ^1.25·L -1) = 10·log ₁₀ (2 ^1.25 × ^1.4 -1) = 3.7 (dB).

Finally, the user equipment is based on the following equation,

P _T,RPUSCH =min{P _MAX ,P _{O_RPUSCH} +PL _DL +10·log ₁₀ (M)+Δ _MCS +δ _PUSCH },

Determining the actual transmit power P _{T of the} repeatedly transmitted PUSCH data _{, RPUSCH} is:

Min{23, -120+130+10·log ₁₀ (5)+3.7+0}=20.7 (dBm).

At this time, the actual transmit power P _{T of the} repeatedly transmitted PUSCH data _{, RPUSCH is} lower than the maximum transmit power P _MAX supported by the user equipment.

Specific embodiment 2

The network (base station side) determines the power level of the noise and the power level of the interference from the neighboring cell, and determines the uplink path loss according to at least one of the following: an SRS from the user equipment; an RA signal from the user equipment; and a user equipment from the user equipment Feedback on downlink path loss measurements. The network determines the repeated transmission times N _PUSCH of the repeatedly transmitted PUSCH data according to the power level of the noise and interference and the uplink path loss, and the path loss compensation factor α _{RPUSCH of the} corresponding repeatedly transmitted PUSCH data and repeats the transmitted PUSCH data. The number of repeated transmissions N _PUSCH and the path loss compensation factor α _{RPUSCH are} notified to the user equipment. Alternatively, the network and the user equipment determine, according to the repeated transmission times N _RA of the repeatedly transmitted RA signals from the user equipment, the number of repeated transmissions of the repeatedly transmitted PUSCH data N _PUSCH , the power level of the network according to the noise and interference, and the uplink path loss. The path loss compensation factor α _{RPUSCH of the} repeatedly transmitted PUSCH data is _determined , and the above-described path loss compensation factor α _{RPUSCH is} notified to the user equipment.

In the implementation process, the network determines the number of repeated transmissions N _PUSCH according to the power level of the noise and interference and the uplink path loss, and the corresponding path loss compensation factor α _RPUSCH includes:

Determining a desired transmit power P _A of the PUSCH data for one transmission according to the power level of the interference and the noise and the uplink path loss; determining the PUSCH data of the repeatedly transmitted according to the expected transmit power P _A and the maximum transmit power P _{MAX of the} user equipment. The first repeated transmission times R _A ; wherein R _A is the number of repeated transmissions required by the user equipment when the user equipment always transmits with the maximum power P _MAX ; determining the repeated transmission according to the R _A and the set of repeated transmission times supported by the user equipment The second repeated transmission number R _B of the PUSCH data; wherein the R _B is a minimum value of all elements greater than or equal to R _A belonging to the set of repeated transmission times supported by the user equipment; the second repeated transmission times RB is equal to The number of repeated transmissions of the actual repeated transmission of PUSCH data N _PUSCH . R and _B according to a desired transmit power of transmission PA is repeated to determine the PUSCH transmission of the desired R _{and B sub-data} transmission power P _B; the power difference (unit is dB), and between the P _A and P _B in accordance with The path loss determines the path loss compensation factor α _{RPUSCH of the} repeatedly transmitted PUSCH data.

In this embodiment, it is assumed that the number of repeated transmissions of the _PUSCH N _{PUSCH is} greater than the predefined value K _PUSCH ; it is assumed that the maximum transmit power P _{MAX of the} user equipment is 23 dBm, and the expected received power P _{O_PUSCH} of the PUSCH data for one transmission is -100 dBm. It is clear that the closed-loop power control command δ _PUSCH takes 0 dB, the downlink loss of the user equipment is PL _{DL is} about 138 dB, and the path loss compensation factor α _{RPUSCH of the} repeated transmission of PUSCH data is 0.8; it is assumed that the PUSCH data transmission is occupied. The number of resource blocks M is 5; it is assumed that each resource block occupies 12 consecutive subcarriers in the frequency domain, occupying 14 consecutive OFDM symbols in the time domain, so each resource block includes 168 (= 12 × 14) resources. In addition, since 2 of the 14 OFDM symbols are used to carry pilots, the remaining OFDM symbols are used to carry PUSCH data, so each resource block includes 144 (=12×12) pieces for carrying PUSCH data. Resource unit

Where K represents TBS, N _RE represents the number of resource units carrying PUSCH data in M resource blocks, and L represents the number of valid information bits carried by each resource unit. If the value of K is assumed to be 1000, the user equipment can determine that the value of Δ _MCS is approximately 3.7 dB by the following procedure:

Δ _MCS = 10·log ₁₀ (2 ^1.25·L -1) = 10·log ₁₀ (2 ^{1.25 × 1.4} -1) = 3.7 (dB).

Finally, the user equipment is based on the following equation,

PL _DL '=α _RPUSCH ·PL _DL ,

Min{23, -100+0.8×138+10·log ₁₀ (5)+3.7+0}=21.1 (dBm).

Concrete embodiment 3

The network determines a power level of the noise and a power level of interference from the neighboring cell, and determines an uplink path loss according to at least one of: an SRS from the user equipment; an RA signal from the user equipment; and a downlink path loss from the user equipment Feedback of measured values. The network determines the repeated transmission times N _PUSCH of the repeatedly transmitted PUSCH data according to the power level of the noise and interference and the uplink path loss, and the expected received power P _{O_RPUSCH} and the path loss compensation factor α _{RPUSCH of the} corresponding repeatedly transmitted PUSCH data. _And notifying the user equipment of the repeated transmission times N _PUSCH of the repeatedly transmitted PUSCH data and the expected reception power P _{O_RPUSCH} and the path loss compensation factor α _RPUSCH . Alternatively, the network and the user equipment determine, according to the repeated transmission times N _RA of the repeatedly transmitted RA signals from the user equipment, the number of repeated transmissions of the repeatedly transmitted PUSCH data N _PUSCH , the power level of the network according to the noise and interference, and the uplink path loss. Determining a desired received power P _{O_RPUSCH} and a path loss compensation factor α _{RPUSCH of the} repeatedly transmitted PUSCH data, and notifying the user equipment of the expected received power P _{O_RPUSCH} and the path loss compensation factor α _RPUSCH .

In the implementation process, the network determines, according to the power level of the noise and the interference, and the uplink path loss, the repeated transmission times of the PUSCH data, the N _PUSCH, and the expected received power P _{O_RPUSCH} and the path loss compensation factor α _RPUSCH include:

Determining a desired transmit power P _A of the PUSCH data for one transmission according to the power level of the interference and the noise and the uplink path loss; determining the PUSCH data of the repeatedly transmitted according to the expected transmit power P _A and the maximum transmit power P _{MAX of the} user equipment. The first repeated transmission times R _A ; wherein R _A is the number of repeated transmissions required by the user equipment when the user equipment always transmits with the maximum power P _MAX ; determining the repeated transmission according to the R _A and the set of repeated transmission times supported by the user equipment The second repeated transmission number R _B of the PUSCH data; wherein the R _B is a minimum value of all elements equal to or greater than R _A belonging to the set of repeated transmission times supported by the user equipment; the second repeated transmission times R _B The number of repeated transmissions equal to the actual repeated transmission of PUSCH data N _PUSCH . R _B according to a desired transmit power and a transmit repeating determining a desired P _A PUSCH data transmission times of the R _B transmit power P _B; P _A according to the between P _B and the power difference (unit is dB), and The uplink path loss determines the expected received power P _{O_RPUSCH} and the path loss compensation factor α _{RPUSCH of the} repeatedly transmitted PUSCH data.

In this embodiment, it is assumed that the number of repeated transmissions of the _PUSCH N _{PUSCH is} greater than the predefined value K _PUSCH ; it is assumed that the maximum transmit power P _{MAX of the} user equipment is 23 dBm, and the expected received power P _{O_RPUSCH of the} repeatedly transmitted PUSCH data is -113 dBm. It is clear that the closed loop power control command δ _PUSCH takes a value of 0 dB, the downlink loss of the user equipment is PL _{DL is} about 138 dB, and the path loss compensation factor α _{RPUSCH of the} repeatedly transmitted PUSCH data is 0.9; it is assumed that the PUSCH data transmission is occupied. The number of resource blocks M is 5; it is assumed that each resource block occupies 12 consecutive subcarriers in the frequency domain, occupying 14 consecutive OFDM symbols in the time domain, so each resource block includes 168 (= 12 × 14) resources. In addition, since 2 of the 14 OFDM symbols are used to carry pilots, the remaining OFDM symbols are used to carry PUSCH data, so each resource block includes 144 (=12×12) pieces for carrying PUSCH data. Resource unit

Finally, the user equipment is based on the following equation,

PL _DL '=α _RPUSCH ·PL _DL ,

Min{23, -113 + 0.9 × 138 + 10 · log ₁₀ (5) + 3.7 + 0} = 21.9 (dBm).

Concrete embodiment 4

The network (base station side) determines the power level of the noise and the power level of the interference from the neighboring cell, and determines the uplink path loss according to at least one of the following: an SRS from the user equipment; an RA signal from the user equipment; and a user equipment from the user equipment Feedback on downlink path loss measurements. The network determines, according to the noise level of the noise and interference, and the uplink path loss, the number of repeated transmissions of the repeatedly transmitted PUSCH data N _PUSCH , and the first power offset of the corresponding repeatedly transmitted PUSCH data P _{RPUSCH_OFFSET_1} , and repeats the transmission The number of repeated transmissions of the PUSCH data N _PUSCH and the first power offset P _{RPUSCH_OFFSET_1 are} notified to the user equipment. Alternatively, the network and the user equipment determine, according to the repeated transmission times N _RA of the uplink RA signals repeatedly transmitted from the user equipment, the number of repeated transmissions N _{PUSCH of the} repeatedly transmitted PUSCH data, the power level of the network according to the noise and interference, and the uplink path loss. Determining the repeated PUSCH data power offset P _{RPUSCH_OFFSET_1} and notifying the user equipment of the first power offset P _{RPUSCH_OFFSET_1} .

In the implementation process, the network determines the number of repeated transmissions N _PUSCH according to the power level of the noise and interference and the uplink path loss, and the corresponding first power offset P _{RPUSCH_OFFSET_1} includes:

Determining a desired transmit power PA of the PUSCH data for one transmission according to the power level of the interference and the noise and the uplink path loss; determining the number of the repeatedly transmitted PUSCH data according to the expected transmit power P _A and the maximum transmit power P _{MAX of the} user equipment The number of repeated transmissions R _A ; where R _A is the number of repeated transmissions required by the user equipment in the case where the user equipment always transmits with the maximum power P _MAX ; determining the repeatedly transmitted PUSCH according to the RA and the set of repeated transmissions supported by the user equipment The second repeated transmission number R _{B of the data} ; wherein the R _B is a minimum value of all elements greater than or equal to R _A belonging to the set of repeated transmission times supported by the user equipment; the second repeated transmission number R _B is equal to the actual The number of repeated transmissions of repeated transmission of PUSCH data N _PUSCH . R _B according to a desired transmit power and a transmit repeating determining a desired P _A PUSCH data transmission times of the R _B transmit power P _B; A power difference (in units of dB) determined between the P _A and P _B repeat The first power offset of the transmitted PUSCH data is P _{RPUSCH_OFFSET_1} .

In this embodiment, it is assumed that the number of repeated transmissions of the _PUSCH N _{PUSCH is} greater than the predefined value K _PUSCH ; it is assumed that the maximum transmit power P _{MAX of the} user equipment is 23 dBm, and the expected received power P _{O_RPUSCH} of the PUSCH data for one transmission is -100 dBm. It is clear that the closed loop power control command δ _PUSCH takes a value of 0 dB, the downlink loss of the user equipment is PL _{DL is} about 130 dB, and the first power offset P _{RPUSCH_OFFSET_1 of the} repeatedly transmitted PUSCH data is -20 dB; a PUSCH data transmission is assumed. The number of occupied resource blocks M is 5; it is assumed that each resource block occupies 12 consecutive subcarriers in the frequency domain and contiguous 14 OFDM symbols in the time domain, so each resource block includes 168 (= 12×14) resource units; in addition, since 2 of the 14 OFDM symbols are used to carry pilots, the remaining OFDM symbols are used to carry PUSCH data, so each resource block includes 144 (=12×12) Resource elements for carrying PUSCH data;

Where K represents TBS, N _RE represents the number of resource units carrying PUSCH data in M resource blocks, and L represents the number of valid information bits carried by each resource unit. Considering that the value of K is 1000, the user equipment can determine that the value of Δ _MCS is about 3.7 dB by the following process:

Finally, the user equipment is based on the following equation,

P _T,RPUSCH =min{P _MAX ,P'+P _{RPUSCH_OFFSET_1} }

_{_{P '= P O_PUSCH + PL DL}} + 10 · log 10 (M) + Δ MCS + δ PUSCH,

Determining the actual transmit power PT of the repeatedly transmitted PUSCH data, RPUSCH is:

Min{23, -100+130+10·log ₁₀ (5)+3.7+0-20}=20.7 (dBm).

Specific embodiment 5

The network (base station side) determines the power level of the noise and the power level of the interference from the neighboring cell, and determines the uplink path loss according to at least one of the following: an SRS from the user equipment; an RA signal from the user equipment; and a user equipment from the user equipment Feedback on downlink path loss measurements. The network determines, according to the power level of the noise and interference, and the uplink path loss, the number of repeated transmissions of the repeatedly transmitted PUSCH data, N _PUSCH , and the second power offset of the corresponding repeatedly transmitted PUSCH data, P _{RPUSCH_OFFSET_2} , and repeats the transmission. The number of repeated transmissions of the PUSCH data N _PUSCH and the second power offset P _{RPUSCH_OFFSET_2 are} notified to the user equipment. Alternatively, the network and the user equipment determine, according to the repeated transmission times N _RA of the uplink RA signals repeatedly transmitted from the user equipment, the number of repeated transmissions N _{PUSCH of the} repeatedly transmitted PUSCH data, the power level of the network according to the noise and interference, and the uplink path loss. The repeated PUSCH data power offset P _{RPUSCH_OFFSET_2 is determined} and the second power offset P _{RPUSCH_OFFSET_2 is} notified to the user equipment.

In the implementation process, the network determines the number of repeated transmissions N _PUSCH according to the power level of the noise and the interference and the uplink path loss, and the corresponding second power offset P _{RPUSCH_OFFSET_2} includes:

Determining a desired transmit power P _A of the PUSCH data for one transmission according to the power level of the interference and the noise and the uplink path loss; determining the PUSCH data of the repeatedly transmitted according to the expected transmit power P _A and the maximum transmit power P _{MAX of the} user equipment. The first repeated transmission times R _A ; wherein R _A is the number of repeated transmissions required by the user equipment when the user equipment always transmits with the maximum power P _MAX ; determining the repeated transmission according to the R _A and the set of repeated transmission times supported by the user equipment The second repeated transmission number R _B of the PUSCH data; wherein the R _B is a minimum value of all elements equal to or greater than R _A belonging to the set of repeated transmission times supported by the user equipment; the second repeated transmission times R _B The number of repeated transmissions equal to the actual repeated transmission of PUSCH data N _PUSCH . For determining the duplicate expected PUSCH transmitted data R _B times according to the desired R _B and a transfer transmission power P _A transmit power P _B; determining PUSCH data repetition transmitted according to the P maximum transmission power _B of the user equipment P _MAX The second power is biased by P _{RPUSCH_OFFSET_2} .

It is assumed that the number of repeated transmissions of the _PUSCH N _{PUSCH is} greater than the predefined value K _PUSCH ; it is assumed that the maximum transmit power P _{MAX of the} user equipment is 23 dBm, and the expected received power P _{O_RPUSCH} of the PUSCH data for one transmission is -100 dBm, and the closed loop power control command is clarified. The value of the δ _PUSCH is 0 dB, and the value of the downlink path loss PL _DL estimated by the user equipment is approximately 130 dB, and the value of the second power offset P _{RPUSCH_OFFSET_2 of the} repeatedly transmitted PUSCH data is _{-2 dB} ; the resource block occupied by the PUSCH data transmission is assumed. The number M is 5; it is assumed that each resource block occupies 12 consecutive subcarriers in the frequency domain and contiguous 14 OFDM symbols in the time domain, so each resource block includes 168 (= 12 × 14) a resource unit; in addition, since 2 of the 14 OFDM symbols are used to carry pilots, the remaining OFDM symbols are used to carry PUSCH data, so each resource block includes 144 (=12×12) for carrying PUSCH Resource unit of data;

Finally, the user equipment is based on the following equation,

_{P T, RPUSCH = P '+} P RPUSCH_OFFSET_2

P'=min{P _MAX , P _{O_PUSCH} +PL _DL +10·log ₁₀ (M)+Δ _MCS +δ _PUSCH },

Or,

P _{T, RPUSCH} = P _MAX + P _{RPUSCH_OFFSET_2} ,

Min{23,-100+130+10·log ₁₀ (5)+3.7+0}-2=21(dBm),

or,

23-2=21 (dBm).

Concrete embodiment 6

The network (base station side) determines the power level of the noise and the power level of the interference from the neighboring cell, and determines the uplink path loss according to at least one of the following: an SRS from the user equipment; an RA signal from the user equipment; and a user equipment from the user equipment Feedback on downlink path loss measurements. The network determines the number of repeated transmissions N _PUSCH of the repeatedly transmitted PUSCH data according to the power level of the noise and interference and the uplink path loss, and notifies the user equipment. Alternatively, the network and the user equipment determine the number of repeated transmissions N _PUSCH of the repeatedly transmitted PUSCH data based on the number of repeated transmissions N _RA of the uplink RA signals repeatedly transmitted from the user equipment.

In the implementation process, the network determines the number of repeated transmissions of the repeatedly transmitted PUSCH data according to the power level of the noise and the interference and the uplink path loss. The N _PUSCH includes:

Determining a desired transmit power P _A of the PUSCH data for one transmission according to the power level of the interference and the noise and the uplink path loss; determining the PUSCH data of the repeatedly transmitted according to the expected transmit power P _A and the maximum transmit power P _{MAX of the} user equipment. The first repeated transmission times R _A ; wherein R _A is the number of repeated transmissions required by the user equipment when the user equipment always transmits with the maximum power P _MAX ; determining the repeated transmission according to the R _A and the set of repeated transmission times supported by the user equipment The second repeated transmission number R _B of the PUSCH data; wherein the R _B is a minimum value of all elements greater than or equal to R _A belonging to the set of repeated transmission times supported by the user equipment; the second repeated transmission times R _B The number of repeated transmissions equal to the actual repeated transmission of PUSCH data N _PUSCH .

In this embodiment, it is assumed that the number of repeated transmissions of the _PUSCH N _{PUSCH is} greater than the predefined value K _PUSCH ; it is assumed that the maximum transmit power P _{MAX of the} user equipment is 23 dBm, and the expected received power P _{O_PUSCH} of the PUSCH data for one transmission is -100 dBm. clear [delta] _PUSCH closed loop power control command value is 0dB, the user equipment downlink pathloss estimation PL _DL value of approximately 130dB, repeated transmission data is repeated the number of times N _PUSCH PUSCH transmission value of 100; a PUSCH data transmission envisaged occupied The number of resource blocks M is 5; it is assumed that each resource block occupies 12 consecutive subcarriers in the frequency domain, occupying 14 consecutive OFDM symbols in the time domain, so each resource block includes 168 (= 12 × 14) Resource unit; additionally, since 2 of the 14 OFDM symbols are used to carry pilots, the remaining 12 OFDM symbols are used to carry PUSCH data, so each resource block includes 144 (= 12 × 12) for a resource unit carrying PUSCH data;

Where K represents TBS, NRE represents the number of resource units carrying PUSCH data in M resource blocks, and L represents the number of valid information bits carried by each resource unit. Considering that the value of K is 1000, the user equipment can determine that the value of Δ _MCS is about 3.7 dB by the following process:

Finally, the user equipment is based on the following equation,

P _{T, RPUSCH} = min{P _MAX , P'-10·log ₁₀ (N _PUSCH )}

_{_{P '= P O_PUSCH + PL DL}} + 10 · log 10 (M) + Δ MCS + δ PUSCH,

P'=-100+130+10·log ₁₀ (5)+3.7+0=40.7 (dBm)

Min{23, P'-10·log ₁₀ (100)}=20.7 (dBm).

It should be noted that the power levels of interference and noise in the specific embodiments 1 to 6 of the present invention refer to the average interference and noise power levels of a single transmission process; considering the combination of PUSCH data in repeated transmissions. During reception, interference and noise will also be combined, and there may be a discrepancy between the power level of the combined interference and noise and the power level of the interference and noise of one transmission process, except for the closed-loop power control command used to compensate the wireless channel. In addition to fast fading, it can also be used to compensate for the deviation between the power level of the combined interference and noise and the power level of the interference and noise of one transmission process, or to determine the number of repeated transmissions N _PUSCH or determine the power of repeated transmission. In the process of controlling parameters (including expected received power P _{O_RPUSCH} , path loss compensation factor α _RPUSCH , first power offset P _{RPUSCH_OFFSET_1} and second power offset P _{RPUSCH_OFFSET_2} ), the influence of the above deviation can be directly considered (ie directly introduced Corresponding compensation item).

Concrete embodiment 7

The network (base station side) determines the power level of the noise and the power level of the interference from the neighboring cell, and determines the uplink path loss according to at least one of the following: an SRS from the user equipment; an RA signal from the user equipment; and a user equipment from the user equipment Feedback on downlink path loss measurements. The network determines, according to the noise level of the noise and the interference and the uplink path loss, the repeated transmission times of the PUCCH data, the N _PUCCH, and the expected received power P _{O_RPUCCH of the} corresponding repeatedly transmitted PUCCH data, and repeats the repeatedly transmitted PUCCH data. The number of transmissions N _PUCCH and the expected received power P _{O_RPUCCH are} notified to the user equipment. Alternatively, the network and the user equipment determine the number of repeated transmissions of the repeatedly transmitted PUCCH data N _PUCCH according to the number of repeated transmissions N _RA of the uplink RA signals repeatedly transmitted from the user equipment, the power level of the network according to the noise and interference, and the uplink The loss determines the expected received power P _{O_RPUCCH of the} repeatedly transmitted PUCCH data and notifies the user equipment of the desired received power P _{O_RPUCCH} .

In the implementation process, the network determines the number of repeated transmissions N _PUCCH according to the power level of the noise and interference and the uplink path loss, and the corresponding expected received power P _{O_RPUCCH} includes:

Determining a desired transmit power P _A of the PUCCH data of one transmission according to the power level of the interference and the noise and the uplink path loss; determining the PUCCH data of the repeatedly transmitted according to the expected transmit power P _A and the maximum transmit power P _{MAX of the} user equipment The first repeated transmission times R _A ; wherein R _A is the number of repeated transmissions required by the user equipment when the user equipment always transmits with the maximum power P _MAX ; determining the repeated transmission according to the R _A and the set of repeated transmission times supported by the user equipment The second repeated transmission number R _B of the PUCCH data; wherein the R _B is a minimum value of all elements greater than or equal to R _A belonging to the set of repeated transmission times supported by the user equipment; the second repeated transmission times R _B The number of repeated transmissions equal to the actual repeated transmission of PUCCH data N _PUCCH . R _B according to a desired transmit power and a transmit repeating determining a desired P _A PUCCH data transmission times of the R _B transmit power P _B; P _A according to the between P _B and the power difference (unit is dB), and a desired transmission power P _{O_PUCCH} received repeated determining a desired transmission power received _P O_RPUCCH.

In this embodiment, it is assumed that the number of repeated transmissions of the _PUCCH N _{PUCCH is} greater than the predefined value K _PUCCH ; it is assumed that the maximum transmit power P _{MAX of the} user equipment is 23 dBm, and the expected received power P _{O_RPUCCH of the} repeatedly transmitted PUCCH data is -120 dBm. It is clear that the closed loop power control command δ _PUCCH takes a value of 0 dB, and the downlink loss path PLDL estimated by the user equipment is approximately 142 dB; the PUCCH format is assumed to be PUCCH format 1a, and the power offset Δ _{MCS of the} format 1a takes a value of 0 dB.

Finally, the user equipment is based on the following equation,

P _{T, RPUCCH} = min{P _MAX , P _{O_RPUCCH} +PL _DL +Δ _Format +δ _PUCCH },

Determine the actual transmit power PT of the repeatedly transmitted PUCCH data, and the RPUCCH is:

Min{23, -120+142+0+0}=22 (dBm).

At this time, the actual transmit power P _{T of the} repeatedly transmitted PUCCH data _{, RPUCCH is} lower than the maximum transmit power P _MAX supported by the user equipment.

Embodiment 8

The network (base station side) determines the power level of the noise and the power level of the interference from the neighboring cell, and determines the uplink path loss according to at least one of the following: an SRS from the user equipment; an RA signal from the user equipment; and a user equipment from the user equipment Feedback on downlink path loss measurements. The network determines the repeated transmission times N _PUCCH of the repeatedly transmitted PUCCH data according to the power level of the noise and interference and the uplink path loss, and the path loss compensation factor α _{RPUCCH of the} corresponding repeatedly transmitted PUCCH data, and repeats the transmitted PUCCH The number of repeated transmissions of data N _PUCCH and the path loss compensation factor α _{RPUCCH are} notified to the user equipment. Alternatively, the network and the user equipment determine the number of repeated transmissions of the repeatedly transmitted PUCCH data N _PUCCH according to the repeated transmission times N _RA of the uplink RA signals repeatedly transmitted from the user equipment, and the network according to the power level and the uplink of the noise and interference The loss determines the path loss compensation factor α _{RPUCCH of the} repeatedly transmitted PUCCH data, and notifies the user equipment of the path loss compensation factor α _RPUCCH .

In the implementation process, the network determines the number of repeated transmissions N _PUCCH according to the power level of the noise and interference and the uplink path loss, and the corresponding path loss compensation factor α _RPUCCH includes:

Determining a desired transmit power P _A of the PUCCH data of one transmission according to the power level of the interference and the noise and the uplink path loss; determining the PUCCH data of the repeatedly transmitted according to the expected transmit power P _A and the maximum transmit power P _{MAX of the} user equipment The first repeated transmission times R _A ; wherein R _A is the number of repeated transmissions required by the user equipment when the user equipment always transmits with the maximum power P _MAX ; determining the repeated transmission according to the R _A and the set of repeated transmission times supported by the user equipment The second repeated transmission number R _B of the PUCCH data; wherein the R _B is a minimum value of all elements greater than or equal to R _A belonging to the set of repeated transmission times supported by the user equipment; the second repeated transmission times R _B The number of repeated transmissions equal to the actual repeated transmission of PUCCH data N _PUCCH . R _B according to a desired transmit power and a transmit repeating determining a desired P _A PUCCH data transmission times of the R _B transmit power P _B; P _A according to the between P _B and the power difference (unit is dB), and The uplink path loss determines the path loss compensation factor α _{RPUCCH of the} repeatedly transmitted PUCCH data.

In this embodiment, it is assumed that the number of repeated transmissions of the _PUCCH N _{PUCCH is} greater than a predefined value K _PUCCH ;

It is assumed that the maximum transmit power P _{MAX of the} user equipment is 23 dBm, and the expected received power P _{O_PUCCH} of the PUCCH data for one transmission is -100 dBm, and the value of the closed loop power control command δ _PUCCH is 0 dB, and the downlink path loss PLDL estimated by the user equipment is determined. The value is approximately _{135 dB} , and the path loss compensation factor α _{RPUCCH of the} repeatedly transmitted PUCCH data is 0.9; the current PUCCH format is assumed to be PUCCH format 1a, and the power offset Δ _{MCS of the} format 1a is 0 dB.

Finally, the user equipment is based on the following equation,

P _T,RPUCCH =min{P _MAX ,P _{O_PUCCH} +PL _DL '+Δ _Format +δ _PUCCH }

PL _DL '=α _RPUCCH ·PL _DL ,

Determining the actual transmit power P _{T of the} repeatedly transmitted PUCCH data _{, RPUCCH} is:

Min{23, -100+0.9×135+0+0}=21.5 (dBm).

Specific embodiment nine

The network (base station side) determines the power level of the noise and the power level of the interference from the neighboring cell, and determines the uplink path loss according to at least one of the following: an SRS from the user equipment; an RA signal from the user equipment; and a user equipment from the user equipment Feedback on downlink path loss measurements. The network determines the repeated transmission times N _PUCCH of the repeatedly transmitted PUCCH data according to the power level of the noise and interference and the uplink path loss, and the expected received power P _{O_RPUCCH} and the path loss compensation factor α _{RPUCCH of the} corresponding repeatedly transmitted PUCCH data. The number of repeated transmissions N _PUCCH of the repeatedly transmitted PUCCH data and the expected received power P _{O_RPUCCH} and the path loss compensation factor α _{RPUCCH are} notified to the user equipment. Alternatively, the network and the user equipment determine, according to the repeated transmission times N _RA of the repeatedly transmitted RA signals from the user equipment, the number of repeated transmissions of the repeatedly transmitted PUCCH data N _PUCCH , the power level of the network according to the noise and interference, and the uplink path loss. The desired received power P _{O_RPUCCH} and the path loss compensation factor α _{RPUCCH of the} repeatedly transmitted PUCCH data are determined and the desired received power P _{O_RPUCCH} and the path loss compensation factor α _{RPUCCH are} notified to the user equipment.

In the implementation process, the network determines, according to the power level of the noise and the interference and the uplink path loss, the repeated transmission times of the PUCCH data, the N _PUCCH, and the expected received power P _{O_RPUCCH} and the path loss compensation factor α _RPUCCH include:

Determining a desired transmit power P _A of the PUCCH data of one transmission according to the power level of the interference and the noise and the uplink path loss; determining the PUCCH data of the repeatedly transmitted according to the expected transmit power P _A and the maximum transmit power P _{MAX of the} user equipment The first repeated transmission times R _A ; wherein R _A is the number of repeated transmissions required by the user equipment when the user equipment always transmits with the maximum power P _MAX ; determining the repeated transmission according to the R _A and the set of repeated transmission times supported by the user equipment The second repeated transmission number R _B of the PUCCH data; wherein the R _B is a minimum value of all elements greater than or equal to R _A belonging to the set of repeated transmission times supported by the user equipment; the second repeated transmission times R _B The number of repeated transmissions equal to the actual repeated transmission of PUCCH data N _PUCCH . R _B according to a desired transmit power and a transmit repeating determining a desired P _A PUCCH data transmission times of the R _B transmit power P _B; P _A according to the between P _B and the power difference (unit is dB), and The uplink path loss determines the expected received power P _{O_RPUCCH} and the path loss compensation factor α _{RPUCCH of the} repeatedly transmitted PUCCH data.

In this embodiment, it is assumed that the number of repeated transmissions of the PUCCH, N _{PUCCH, is} greater than a predefined value K _PUCCH ; it is assumed that the maximum transmit power P _{MAX of the} user equipment is 23 dBm, and the expected received power of the PUCCH data that is repeatedly transmitted is a value of _{-106 dBm} . It is clear that the closed-loop power control command δ _PUCCH takes 0 dB, the downlink loss of the user equipment is PL _{DL is} about 142 dB, and the path loss compensation factor α _{RPUCCH of the} repeated transmission PUCCH data is 0.9; the current PUCCH format is assumed to be PUCCH format. 1a, and the power offset Δ _{MCS of the} format 1a takes a value of 0 dB.

Finally, the user equipment is based on the following equation,

P _T,RPUCCH =min{P _MAX ,P _{O_RPUCCH} +PL _DL '+Δ _Format +δ _PUCCH }

PL _DL '=α _RPUCCH ·PL _DL ,

Min{23, -106 + 0.9 × 142 + 0 + 0} = 21.8 (dBm).

At this time, the actual transmit power P _{T of the} repeatedly transmitted PUCCH data _{, RPUSCH is} lower than the maximum transmit power P _MAX supported by the user equipment.

Specific embodiment ten

The network (base station side) determines the power level of the noise and the power level of the interference from the neighboring cell, and determines the uplink path loss according to at least one of the following: an SRS from the user equipment; an RA signal from the user equipment; and a user equipment from the user equipment Feedback on downlink path loss measurements. The network determines, according to the noise level of the noise and interference, and the uplink path loss, the number of repeated transmissions of the repeatedly transmitted PUCCH data, N _PUCCH , and the first power offset of the corresponding repeatedly transmitted PUCCH data, P _{RPUCCH_OFFSET_1} , and repeats the transmission. The number of repeated transmissions of the PUCCH data N _PUCCH and the first power offset P _{RPUCCH_OFFSET_1 are} notified to the user equipment. Alternatively, the network and the user equipment determine the number of repeated transmissions N _{PUCCH of the} repeatedly transmitted PUCCH data according to the repeated transmission times N _RA of the uplink RA signals repeatedly transmitted from the user equipment, the power level of the network according to the noise and interference, and the uplink path loss. Determining the repeated PUCCH data power offset P _{RPUCCH_OFFSET_1} and notifying the user equipment of the first power offset P _{RPUCCH_OFFSET_1} described above.

In the implementation process, the network determines the number of repeated transmissions N _PUCCH according to the power level of the noise and interference and the uplink path loss, and the corresponding first power offset P _{RPUCCH_OFFSET_1} includes:

Determining a desired transmit power P _A of the PUCCH data of one transmission according to the power level of the interference and the noise and the uplink path loss; determining the PUCCH data of the repeatedly transmitted according to the expected transmit power P _A and the maximum transmit power P _{MAX of the} user equipment The first repeated transmission times R _A ; wherein R _A is the number of repeated transmissions required by the user equipment when the user equipment always transmits with the maximum power P _MAX ; determining the repeated transmission according to the R _A and the set of repeated transmission times supported by the user equipment The second repeated transmission number R _B of the PUCCH data; wherein the R _B is a minimum value of all elements greater than or equal to R _A belonging to the set of repeated transmission times supported by the user equipment; the second repeated transmission times R _B The number of repeated transmissions equal to the actual repeated transmission of PUCCH data N _PUCCH . R _B according to a desired transmit power and a transmit repeating determining a desired P _A PUCCH data transmission times of the R _B transmit power P _B; A power difference (in units of dB) determined between the P _A and P _B repeat The first power offset of the transmitted PUCCH data is P _{RPUCCH_OFFSET_1} .

In this embodiment, it is assumed that the number of repeated transmissions of the _PUCCH N _{PUCCH is} greater than the predefined value K _PUCCH ; it is assumed that the maximum transmit power P _{MAX of the} user equipment is 23 dBm, and the expected received power P _{O_RPUCCH} of the PUCCH data for one transmission is -100 dBm. It is clear that the closed loop power control command δ _PUCCH takes a value of 0 dB, the downlink loss of the user equipment is PL _{DL is} about 142 dB, and the first power offset P _{RPUCCH_OFFSET_1 of the} repeatedly transmitted PUCCH data is -20 dB. The current PUCCH format is assumed to be PUCCH format 1a, and the power offset Δ _{MCS of} format 1a takes a value of 0 dB.

Finally, the user equipment is based on the following equation,

P _T,RPUCCH =min{P _MAX ,P'+P _{RPUCCH_OFFSET_1} }

P'=P _{O_PUCCH} +PL _DL +Δ _Format +δ _PUCCH ,

Min{23, -100+142+0+0-20}=22(dBm).

Specific embodiment eleven

The network (base station side) determines the power level of the noise and the power level of the interference from the neighboring cell, and determines the uplink path loss according to at least one of the following: an SRS from the user equipment; an RA signal from the user equipment; and a user equipment from the user equipment Feedback on downlink path loss measurements. The network determines, according to the noise level of the noise and interference, and the uplink path loss, the number of repeated transmissions of the repeatedly transmitted PUCCH data, N _PUCCH , and the second power offset of the corresponding repeatedly transmitted PUCCH data, P _{RPUCCH_OFFSET_2} , and repeats the transmission. The number of repeated transmissions of the PUCCH data N _PUCCH and the second power offset P _{RPUCCH_OFFSET_2 are} notified to the user equipment. Alternatively, the network and the user equipment determine the number of repeated transmissions N _{PUCCH of the} repeatedly transmitted PUCCH data according to the repeated transmission times N _RA of the uplink RA signals repeatedly transmitted from the user equipment, the power level of the network according to the noise and interference, and the uplink path loss. The repeated PUCCH data power offset P _{RPUCCH_OFFSET_2 is determined} and the second power offset P _{RPUCCH_OFFSET_2 is} notified to the user equipment.

In the implementation process, the network determines the number of repeated transmissions N _PUCCH according to the power level of the noise and interference and the uplink path loss, and the corresponding second power offset P _{RPUCCH_OFFSET_2} includes:

Determining a desired transmit power P _A of the PUCCH data of one transmission according to the power level of the interference and the noise and the uplink path loss; determining the PUCCH data of the repeatedly transmitted according to the expected transmit power P _A and the maximum transmit power P _{MAX of the} user equipment The first repeated transmission times R _A ; wherein R _A is the number of repeated transmissions required by the user equipment when the user equipment always transmits with the maximum power P _MAX ; determining the repeated transmission according to the R _A and the set of repeated transmission times supported by the user equipment The second repeated transmission number R _B of the PUCCH data; wherein the R _B is a minimum value of all elements greater than or equal to RA belonging to the set of repeated transmission times supported by the user equipment; the second repeated transmission number R _B is equal to The number of repeated transmissions of the actual repeated transmission of PUCCH data N _PUCCH . Repeat determining a desired transmission data PUCCH times R _B R _B according to a desired transmit power and a transmit transmit power P _A P _B; the maximum transmit power P _B P _MAX with the user equipment is determined according to the repeated transmission data PUCCH The second power is biased by P _{RPUCCH_OFFSET_2} .

It is assumed that the number of repeated transmissions of _PUCCH N _{PUCCH is} greater than a predefined value K _PUCCH .

It is assumed that the maximum transmit power P _{MAX of the} user equipment is 23 dBm, and the expected received power P _{O_RPUCCH} of the PUCCH data for one transmission is -100 dBm, and the value of the closed loop power control command δ _PUCCH is 0 dB, and the downlink path loss PL estimated by the user equipment. _{The DL} value is approximately 130 dB, and the second power offset P _{RPUCCH_OFFSET_2 of the} repeatedly transmitted PUCCH data takes a value of _{-2 dB} ; it is assumed that the current PUCCH format is PUCCH format 1a, and the power offset Δ _{MCS of the} format 1a takes a value of 0 dB.

Finally, the user equipment is based on the following equation,

P _{T, RPUCCH} = P' + P _{RPUCCH_OFFSET_2}

P'=min{P _MAX , P _{O_PUCCH} +PL _DL +Δ _Format +δ _PUCCH },

or,

P _{T, RPUCCH} = P _MAX + P _{RPUCCH_OFFSET_2} ,

Min{23,-100+130+0+0}-2=21(dBm),

or,

23-2=21 (dBm).

Specific embodiment twelve

The network (base station side) determines the power level of the noise and the power level of the interference from the neighboring cell, and determines the uplink path loss according to at least one of the following: an SRS from the user equipment; an RA signal from the user equipment; and a user equipment from the user equipment Feedback on downlink path loss measurements. The network determines the repeated transmission times N _PUCCH of the repeatedly transmitted PUCCH data according to the power level of the noise and interference and the uplink path loss, and notifies the user equipment. Alternatively, the network and the user equipment determine the number of repeated transmissions N _PUCCH of the repeatedly transmitted PUCCH data based on the number of repeated transmissions N _RA of the uplink RA signals repeatedly transmitted from the user equipment.

In the implementation process, the network determines the number of repeated transmissions of the repeatedly transmitted PUCCH data according to the power level of the noise and the interference and the uplink path loss. The N _PUCCH includes:

Determining a desired transmit power P _A of the PUCCH data of one transmission according to the power level of the interference and the noise and the uplink path loss; determining the PUCCH data of the repeatedly transmitted according to the expected transmit power P _A and the maximum transmit power P _{MAX of the} user equipment The first repeated transmission times R _A ; wherein R _A is the number of repeated transmissions required by the user equipment when the user equipment always transmits with the maximum power P _MAX ; determining the repeated transmission according to the R _A and the set of repeated transmission times supported by the user equipment The second repeated transmission number R _B of the PUCCH data; wherein the R _B is a minimum value of all elements greater than or equal to R _A belonging to the set of repeated transmission times supported by the user equipment; the second repeated transmission times R _B The number of repeated transmissions equal to the actual repeated transmission of PUCCH data N _PUCCH .

It is assumed that the maximum transmit power P _{MAX of the} user equipment is 23 dBm, and the expected received power P _{O_PUCCH} of the PUCCH data for one transmission is -100 dBm, and the value of the closed loop power control command δ _PUCCH is 0 dB, and the downlink loss PL of the user equipment is estimated. _DL value of approximately 130dB, repeated transmission data is repeated transmission of the PUCCH _PUCCH number value of 100 N; PUCCH format is contemplated PUCCH format 1a, and the power offset value Δ _MCS format 1a is 0dB.

Finally, the user equipment is based on the following equation,

P _{T, RPUCCH} = min{P _MAX , P'-10·log ₁₀ (N _PUCCH )}

P'=P _{O_PUCCH} +PL _DL +Δ _Format +δ _PUCCH ,

P'=-100+142+0+0=42(dBm)

Min{23, P'-10·log ₁₀ (100)}=22 (dBm).

It should be noted that the power levels of interference and noise described in Embodiments 7 through 12 refer to the average interference and noise power levels of a single transmission process; taking into account the combination of PUCCH data for repeated transmissions. During reception, interference and noise will also be combined, and there may be a discrepancy between the power level of the combined interference and noise and the power level of the interference and noise of one transmission process, except for the closed-loop power control command used to compensate the wireless channel. In addition to fast fading, it can also be used to compensate for the deviation between the power level of the combined interference and noise and the power level of the interference and noise of one transmission process, or to determine the number of repeated transmissions N _PUCCH or determine the power of repeated transmission. In the process of controlling parameters (including desired received power P _{O_RPUCCH} , path loss compensation factor α _RPUCCH , first power offset P _{RPUCCH_OFFSET_1} and second power offset P _{RPUCCH_OFFSET_2} ), the influence of the above deviation can be directly considered (ie directly introduced Corresponding compensation item).

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to the program instructions. The foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing storage medium includes: a mobile storage device, a random access memory (RAM), a read-only memory (ROM), a magnetic disk, or an optical disk. A medium that can store program code.

Alternatively, the above-described integrated unit of the embodiment of the present invention may be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a stand-alone product. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product, which is stored in a storage medium and includes a plurality of instructions for making A computer device (which may be a personal computer, server, or network device, etc.) performs all or part of the methods described in various embodiments of the present invention. The foregoing storage medium includes various media that can store program codes, such as a mobile storage device, a RAM, a ROM, a magnetic disk, or an optical disk.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Industrial applicability

Claims

A power control method, the method comprising:

When the number of repeated transmissions of the physical uplink shared channel PUSCH data is greater than the K PUSCH , the repeatedly transmitted PUSCH data is transmitted with a power less than or equal to the maximum transmit power;

When the number of repeated transmissions of the physical uplink control channel PUCCH data is greater than the K PUCCH , the repeatedly transmitted PUCCH data is transmitted with a power less than or equal to the maximum transmission power;

Wherein said K PUSCH K PUCCH and a predefined value.
The method of claim 1, wherein before the transmitting the repeatedly transmitted PUSCH data, the method further comprises:

The actual transmission power of the repeatedly transmitted PUSCH data is determined according to the power control parameter of the repeatedly transmitted PUSCH data or the repeated transmission number N PUSCH of the repeatedly transmitted PUSCH data.
The method of claim 2, wherein the power control parameters of the repeatedly transmitted PUSCH data comprise:

User-specific parameters for network notifications.
The method of claim 3, wherein the user equipment-specific parameters comprise: parameters set for repeatedly transmitting PUSCH data;

The parameters set for repeatedly transmitting PUSCH data include at least one of the following:

Repeating transmission of the expected received power P O_RPUSCH corresponding to the PUSCH data; repeatedly transmitting the path loss compensation factor α RPUSCH corresponding to the PUSCH data;

The first power offset parameter P RPUSCH_OFFSET_1 of the repeatedly transmitted PUSCH data, and the second power offset parameter P RPUSCH_OFFSET_2 of the repeatedly transmitted PUSCH data.
The method of claim 4, wherein the determining the actual transmit power of the repeatedly transmitted PUSCH data according to the power control parameter of the repeatedly transmitted PUSCH data comprises:

The actual transmit power of the repeatedly transmitted PUSCH data is determined according to the expected received power P O_RPUSCH parameter of the repeatedly transmitted PUSCH data and the following equation:

P T,RPUSCH =min{P MAX ,P O_RPUSCH +PL DL +10·log 10 (M)+Δ MCS +δ PUSCH },

Where P T, RPUSCH represents the actual transmit power of the repeatedly transmitted PUSCH data, P MAX represents the maximum transmit power, P O_RPUSCH represents the expected received power of the repeatedly transmitted PUSCH data, PL DL represents the downlink path loss estimate, and M represents the primary PUSCH The number of resource blocks occupied by the data transmission, Δ MCS represents the power offset of the modulation coding scheme MCS dependent on the PUSCH data, and the δ PUSCH corresponds to an explicit closed loop power control command from the network.
The method of claim 4, wherein the determining the actual transmit power of the repeatedly transmitted PUSCH data according to the power control parameter of the repeatedly transmitted PUSCH data comprises:

The actual transmit power of the repeatedly transmitted PUSCH data is determined according to the path loss compensation factor α RPUSCH of the repeatedly transmitted PUSCH data and the following equation:

P T,RPUSCH =min{P MAX ,P O_PUSCH +PL DL '+10·log 10 (M)+Δ MCS +δ PUSCH }

PL DL '=α RPUSCH ·PL DL ,

Where P T, RPUSCH represents the actual transmit power of the repeatedly transmitted PUSCH data, P MAX represents the maximum transmit power, P O_PUSCH represents the expected received power of the PUSCH data transmitted once, PL DL represents the downlink path loss estimate, and α RPUSCH represents The path loss compensation factor of the repeatedly transmitted PUSCH data, M represents the number of resource blocks occupied by the primary PUSCH data transmission, Δ MCS represents the power offset of the PUSCH data MCS, and δ PUSCH corresponds to the explicit closed loop power control command from the network.
The method of claim 4, wherein the determining the actual transmit power of the repeatedly transmitted PUSCH data according to the power control parameter of the repeatedly transmitted PUSCH data comprises:

The actual transmit power of the repeatedly transmitted PUSCH data is determined according to the expected received power parameter P O_PUSCH of the repeatedly transmitted PUSCH data and the path loss compensation factor parameter α RPUSCH of the repeatedly transmitted PUSCH data, and the following equation:

P T,RPUSCH =min{P MAX ,P O_RPUSCH +PL DL '+10·log 10 (M)+Δ MCS +δ PUSCH }

PL DL '=α RPUSCH ·PL DL ,

Where P T, RPUSCH represents the actual transmit power of the repeatedly transmitted PUSCH data, P MAX represents the maximum transmit power, P O_RPUSCH represents the expected received power of the repeatedly transmitted PUSCH data, PL DL represents the downlink path loss estimate, α RPUSCH represents The path loss compensation factor of the repeatedly transmitted PUSCH data, M represents the number of resource blocks occupied by the primary PUSCH data transmission, Δ MCS represents the power offset of the MCS depending on the PUSCH data, and δ PUSCH corresponds to the explicit closed loop power control from the network command.
The method of claim 4, wherein the determining the actual transmit power of the repeatedly transmitted PUSCH data according to the power control parameter of the repeatedly transmitted PUSCH data comprises:

The first repeat transmission power offset parameter of the PUSCH data P RPUSCH_OFFSET_1, and the following equation to determine the actual transmission power of the PUSCH data is repeated transmission:

P T,RPUSCH =min{P MAX ,P'+P RPUSCH_OFFSET_1 }

P '= P O_PUSCH + PL DL + 10 · log 10 (M) + Δ MCS + δ PUSCH,

Where P T, RPUSCH represents the actual transmit power of the repeatedly transmitted PUSCH data, P MAX represents the maximum transmit power, P O_RPUSCH represents the expected received power of the PUSCH data transmitted once, PL DL represents the downlink path loss estimate, and M represents the primary PUSCH The number of resource blocks occupied by the data transmission, Δ MCS indicates the power offset dependent on the PUSCH data MCS, and δ PUSCH corresponds to the explicit closed loop power control command from the network.
The method of claim 4, wherein the determining the actual transmit power of the repeatedly transmitted PUSCH data according to the power control parameter of the repeatedly transmitted PUSCH data comprises:

The actual transmit power of the repeatedly transmitted PUSCH data is determined according to the second power offset parameter P RPUSCH_OFFSET_2 of the repeatedly transmitted PUSCH data, and the following equation:

P T, RPUSCH = P '+ P RPUSCH_OFFSET_2

P'=min{P MAX , P O_PUSCH +PL DL +10·log 10 (M)+Δ MCS +δ PUSCH }; or,

The actual transmit power of the repeatedly transmitted PUSCH data is determined according to the second power offset parameter P RPUSCH_OFFSET_2 of the repeatedly transmitted PUSCH data, and the following equation:

P T, RPUSCH = P MAX + P RPUSCH_OFFSET_2 ,

Where P T, RPUSCH represents the actual transmit power of the repeatedly transmitted PUSCH data, P MAX represents the maximum transmit power, P O_RPUSCH represents the expected received power of the PUSCH data transmitted once, PL DL represents the downlink path loss estimate, and P RPUSCH_OFFSET_2 represents the repetition The second power offset parameter of the transmitted PUSCH data, M represents the number of resource blocks occupied by the primary PUSCH data transmission, Δ MCS represents the power offset dependent on the PUSCH data MCS, and δ PUSCH corresponds to the explicit closed loop power control command from the network .
The method according to claim 4, wherein the determining the actual transmit power of the repeatedly transmitted PUSCH data according to the number of repeated transmissions N PUSCH of the repeatedly transmitted PUSCH data comprises:

The actual transmit power of the repeatedly transmitted PUSCH data is determined according to the number of repeated transmissions N PUSCH of the repeatedly transmitted PUSCH data and the following equation:

P T, RPUSCH = min{P MAX , P'-10·log 10 (N PUSCH )}

P '= P O_PUSCH + PL DL + 10 · log 10 (M) + Δ MCS + δ PUSCH,

Where P T, RPUSCH represents the actual transmit power of the repeatedly transmitted PUSCH data, P MAX represents the maximum transmit power, P O_RPUSCH represents the expected received power of the PUSCH data transmitted once, PL DL represents the downlink path loss estimate, and M represents the primary PUSCH The number of resource blocks occupied by the data transmission, Δ MCS represents the power offset of the MCS dependent on the PUSCH data, and δ PUSCH corresponds to the explicit closed loop power control command from the network.
The method of claim 1 wherein when the pilot symbols are transmitted, the method further comprises:

The pilot symbols are transmitted at the same transmit power as the repeatedly transmitted PUSCH data symbols, or the pilot symbols are always transmitted at maximum power.
The method of claim 1, wherein before the establishing of the radio frequency resource control RRC connection, the method further comprises:

The repeatedly transmitted PUSCH data is transmitted according to an existing power control mechanism, or the repeatedly transmitted PUSCH data is always transmitted at the maximum power.
The method of claim 1, wherein before the transmitting the repeatedly transmitted PUCCH data, the method further comprises:

The transmission power of the repeatedly transmitted PUCCH data is determined according to the power control parameter of the repeatedly transmitted PUCCH data or the repeated transmission times N PUCCH of the PUCCH data.
The method of claim 13 wherein the power control parameters of the repeatedly transmitted PUCCH data comprise:

User-specific parameters for network notifications.
The method of claim 14, wherein the user equipment specific parameters comprise: parameters set for repeatedly transmitting PUCCH data;

The parameters set for repeatedly transmitting PUCCH data include at least one of the following:

Repeating transmission of the expected received power P O_RPUCCH corresponding to the PUCCH data; the path loss compensation factor α RPUCCH corresponding to the repeatedly transmitted PUCCH data;

A first power offset parameter repeated transmission of PUCCH data P RPUCCH_OFFSET_1; repeated a second power offset parameter transmitted PUSCH data P RPUCCH_OFFSET_2.
The method of claim 15, wherein the determining the actual transmit power of the repeatedly transmitted PUCCH data according to the power control parameter of the repeatedly transmitted PUCCH data comprises:

The actual transmit power of the repeatedly transmitted PUCCH data is determined according to the expected received power P O_RPUCCH parameter of the repeatedly transmitted PUCCH data and the following equation:

P T, RPUCCH = min{P MAX , P O_RPUCCH +PL DL +Δ Format +δ PUCCH },

Where P T, RPUCCH represents the actual transmit power of the repeatedly transmitted PUCCH data, P MAX represents the maximum transmit power, P O_RPUCCH represents the desired received power of the repeatedly transmitted PUCCH data, PL DL represents the downlink path loss estimate, and Δ Format represents The PUCCH format related power offset, δ PUCCH corresponds to an explicit closed loop power control command from the network.
The method of claim 15, wherein the determining the actual transmit power of the repeatedly transmitted PUCCH data according to the power control parameter of the repeatedly transmitted PUCCH data comprises:

The actual transmit power of the repeatedly transmitted PUCCH data is determined according to the path loss compensation factor α RPUCCH of the repeatedly transmitted PUCCH data, and the following equation:

P T,RPUCCH =min{P MAX ,P O_PUCCH +PL DL '+Δ Format +δ PUCCH }

PL DL '=α RPUCCH ·PL DL ,

Where P T, RPUCCH represents the actual transmit power of the repeatedly transmitted PUCCH data, P MAX represents the maximum transmit power, P O_RPUCCH represents the expected received power of the PUCCH data transmitted once, PL DL represents the downlink path loss estimate, and α RPUCCH represents the repetition A path loss compensation factor for transmitting PUCCH data, Δ Format represents a power offset associated with the PUCCH format, and δ PUCCH corresponds to an explicit closed loop power control command from the network.
The method of claim 15, wherein the determining the actual transmit power of the repeatedly transmitted PUCCH data according to the power control parameter of the repeatedly transmitted PUCCH data comprises:

The actual transmit power of the repeatedly transmitted PUCCH data is determined according to the expected received power P O_RPUCCH of the repeatedly transmitted PUCCH data, the path loss compensation factor α RPUCCH of the repeatedly transmitted PUCCH data, and the following equation:

P T,RPUCCH =min{P MAX ,P O_RPUCCH +PL DL '+Δ Format +δ PUCCH }

PL DL '=α RPUCCH ·PL DL ,

Where P T, RPUCCH represents the actual transmit power of the repeatedly transmitted PUCCH data, P MAX represents the maximum transmit power, P O_RPUCCH represents the expected received power of the repeatedly transmitted PUCCH data, PL DL represents the downlink path loss estimate, and α RPUCCH represents the repetition A path loss compensation factor for transmitting PUCCH data, Δ Format represents a power offset associated with the PUCCH format, and δ PUCCH corresponds to an explicit closed loop power control command from the network.
The method of claim 15, wherein the determining the actual transmit power of the repeatedly transmitted PUCCH data according to the power control parameter of the repeatedly transmitted PUCCH data comprises:

The actual transmit power of the repeatedly transmitted PUCCH data is determined according to the first power offset parameter P RPUCCH_OFFSET_1 of the repeatedly transmitted PUCCH data, and the following equation:

P T,RPUCCH =min{P MAX ,P'+P RPUCCH_OFFSET_1 }

P'=P O_PUCCH +PL DL +Δ Format +δ PUCCH ,

Where P T, RPUCCH represents the actual transmit power of the repeatedly transmitted PUCCH data, P MAX represents the maximum transmit power, P O_RPUCCH represents the expected received power of the PUCCH data transmitted once, PL DL represents the downlink path loss estimate, and Δ Format is The PUCCH format related power offset, δ PUCCH corresponds to an explicit closed loop power control command from the network.
The method of claim 15, wherein the determining the actual transmit power of the repeatedly transmitted PUCCH data according to the power control parameter of the repeatedly transmitted PUCCH data comprises:

The actual transmit power of the repeatedly transmitted PUCCH data is determined according to the second power offset parameter P RPUCCH_OFFSET_2 of the repeatedly transmitted PUCCH data and the following equation:

P T, RPUCCH = P' + P RPUCCH_OFFSET_2

P'=min{P MAX , P O_PUCCH +PL DL +Δ Format +δ PUCCH },

Alternatively, the actual transmit power of the repeatedly transmitted PUCCH data is determined according to the following equation:

P T, RPUCCH = P MAX + P RPUCCH_OFFSET_2 ,

Where P T, RPUCCH represents the actual transmit power of the repeatedly transmitted PUCCH data, P MAX represents the maximum transmit power, P O_RPUCCH represents the expected received power of the PUSCH data transmitted once, PL DL represents the downlink path loss estimate, and Δ Format is The PUCCH format related power offset, δ PUCCH corresponds to an explicit closed loop power control command from the network.
The method of claim 15, wherein the determining the actual transmit power of the repeatedly transmitted PUCCH data according to the number of repeated transmissions N PUCCH of the repeatedly transmitted PUCCH data comprises:

The actual transmit power of the repeatedly transmitted PUCCH data is determined according to the number of repeated transmissions N PUCCH of the repeatedly transmitted PUCCH data and the following equation:

P T, RPUCCH = min{P MAX , P'-10·log 10 (N PUCCH )}

P'=P O_PUCCH +PL DL +Δ Format +δ PUCCH ,

Where P T, RPUCCH represents the actual transmit power of the repeatedly transmitted PUCCH data, P MAX represents the maximum transmit power, P O_RPUCCH represents the expected received power of the PUCCH data transmitted once, PL DL represents the downlink path loss estimate, and Δ Format represents The PUCCH format related power offset, δ PUCCH corresponds to an explicit closed loop power control command from the network.
The method of claim 15 wherein when the pilot symbols are transmitted, the method further comprises:

The pilot symbols are transmitted at the same transmit power as the repeatedly transmitted PUCCH data symbols, or the pilot symbols are always transmitted at maximum power.
The method of any one of claims 15 to 22, wherein before the RRC connection is established, the method further comprises:

The repeatedly transmitted PUCCH data is transmitted according to an existing power control mechanism; or, the repeatedly transmitted PUCCH data is always transmitted at the maximum power.
A power control method, the method comprising:

When the number of repeated transmissions of the PUSCH data of the physical uplink shared channel of the user equipment is greater than the K PUSCH , notifying the power control parameter of the PUSCH data that is repeatedly transmitted by the user equipment;

When the number of repeated transmissions of the physical uplink control channel PUCCH data of the user equipment is greater than the K PUCCH , notifying the power control parameter of the PUCCH data of the device-specific repeated transmission;

Wherein said K PUSCH K PUCCH and a predefined value.
The method of claim 24, wherein the power control parameters of the repeatedly transmitted PUSCH data comprise:

a parameter set for repeated transmission of PUSCH data;

The parameters set for repeatedly transmitting PUSCH data include at least one of the following:

Repeating transmission of the expected received power P O_RPUSCH corresponding to the PUSCH data; repeatedly transmitting the path loss compensation factor α RPUSCH corresponding to the PUSCH data;

The first power offset parameter P RPUSCH_OFFSET_1 of the repeatedly transmitted PUSCH data, and the second power offset parameter P RPUSCH_OFFSET_2 of the repeatedly transmitted PUSCH data.
The method of claim 24 or 25, wherein the repeatedly transmitting power control parameters of the PUCCH data comprises:

a parameter set for repeated transmission of PUCCH data;

The parameters set for repeatedly transmitting PUCCH data include at least one of the following:

Repeating transmission of the expected received power P O_RPUCCH corresponding to the PUCCH data; repeatedly transmitting the path loss compensation factor α RPUCCH corresponding to the PUCCH data;

The first power offset parameter P RPUCCH_OFFSET_1 of the repeatedly transmitted PUCCH data, and the second power offset parameter P RPUCCH_OFFSET_2 of the repeatedly transmitted PUCCH data.
A user equipment, the user equipment comprising:

a detecting unit and a transmitting unit; wherein

The detecting unit is configured to: when detecting that the number of repeated transmissions of the physical uplink shared channel PUSCH data is greater than the K PUSCH , triggering the transmitting unit to transmit the repeatedly transmitted PUSCH data with a power less than or equal to the maximum transmit power; detecting the physical uplink When the number of repeated transmissions of the control channel PUCCH data is greater than the K PUCCH , the transmitting unit is triggered to transmit the repeatedly transmitted PUCCH data with a power less than or equal to the maximum transmission power;

Wherein said K PUSCH K PUCCH and a predefined value.
The user equipment of claim 27, wherein the user equipment further comprises:

a first determining unit, configured to determine an actual transmit power of the repeatedly transmitted PUSCH data according to a power control parameter of the repeatedly transmitted PUSCH data or a repeated transmission number N PUSCH of the repeatedly transmitted PUSCH data;

The transmitting unit is further configured to transmit the repeatedly transmitted PUSCH data according to the actual transmit power.
The user equipment of claim 28, wherein the power control parameters for repeatedly transmitting PUSCH data comprises:

User-specific parameters for network notifications.
The user equipment of claim 29, wherein the user equipment specific parameters comprise:

a parameter set for repeated transmission of PUSCH data;

The parameters set for repeatedly transmitting PUSCH data include at least one of the following:

Repeating transmission of the expected received power P O_RPUSCH corresponding to the PUSCH data; repeatedly transmitting the path loss compensation factor α RPUSCH corresponding to the PUSCH data;

The first power offset parameter P RPUSCH_OFFSET_1 of the repeatedly transmitted PUSCH data, and the second power offset parameter P RPUSCH_OFFSET_2 of the repeatedly transmitted PUSCH data.
A user equipment according to claim 30, wherein

The first determining unit is further configured to determine an actual transmit power of the repeatedly transmitted PUSCH data according to a desired received power P O_RPUSCH parameter of the repeatedly transmitted PUSCH data and the following equation:

P T,RPUSCH =min{P MAX ,P O_RPUSCH +PL DL +10·log 10 (M)+Δ MCS +δ PUSCH }

Where P T, RPUSCH represents the actual transmit power of the repeatedly transmitted PUSCH data, P MAX represents the maximum transmit power, P O_RPUSCH represents the expected received power of the repeatedly transmitted PUSCH data, PL DL represents the downlink path loss estimate, and M represents the primary PUSCH The number of resource blocks occupied by the data transmission, Δ MCS represents the power offset of the modulation coding scheme MCS dependent on the PUSCH data, and the δ PUSCH corresponds to an explicit closed loop power control command from the network.
The user equipment according to claim 30, wherein the first determining unit is further configured to determine an actual transmit power of the repeatedly transmitted PUSCH data according to a path loss compensation factor α RPUSCH of the repeatedly transmitted PUSCH data and an following equation:

P T,RPUSCH =min{P MAX ,P O_PUSCH +PL DL '+10·log 10 (M)+Δ MCS +δ PUSCH }

PL DL '=α RPUSCH ·PL DL

Where P T, RPUSCH represents the actual transmit power of the repeatedly transmitted PUSCH data, P MAX represents the maximum transmit power, P O_PUSCH represents the expected received power of the PUSCH data transmitted once, PL DL represents the downlink path loss estimate, and α RPUSCH represents The path loss compensation factor of the repeatedly transmitted PUSCH data, M represents the number of resource blocks occupied by the primary PUSCH data transmission, Δ MCS represents the power offset dependent on the PUSCH data MCS, and δ PUSCH corresponds to the explicit closed loop power control command from the network.
The user equipment according to claim 30, wherein the first determining unit is further configured to: according to the expected received power P O_PUSCH of the repeatedly transmitted PUSCH data and the path loss compensation factor parameter α RPUSCH of the repeatedly transmitted PUSCH data, and The following equation determines the actual transmit power of the repeatedly transmitted PUSCH data:

P T,RPUSCH =min{P MAX ,P O_RPUSCH +PL DL '+10·log 10 (M)+Δ MCS +δ PUSCH }

PL DL '=α RPUSCH ·PL DL

Where P T, RPUSCH represents the actual transmit power of the repeatedly transmitted PUSCH data, P MAX represents the maximum transmit power, P O_RPUSCH represents the expected received power of the repeatedly transmitted PUSCH data, PL DL represents the downlink path loss estimate, α RPUSCH represents The path loss compensation factor of the repeatedly transmitted PUSCH data, M represents the number of resource blocks occupied by the primary PUSCH data transmission, Δ MCS represents the power offset of the MCS depending on the PUSCH data, and δ PUSCH corresponds to the explicit closed loop power control from the network command.
The user equipment according to claim 30, wherein the first determining unit is further configured to determine the repeatedly transmitted PUSCH data according to the first power offset parameter P RPUSCH_OFFSET_1 of the repeatedly transmitted PUSCH data, and the following equation Actual transmit power:

P T,RPUSCH =min{P MAX ,P'+P RPUSCH_OFFSET_1 }

P '= P O_PUSCH + PL DL + 10 · log 10 (M) + Δ MCS + δ PUSCH,

Where P T, RPUSCH represents the actual transmit power of the repeatedly transmitted PUSCH data, P MAX represents the maximum transmit power, P O_RPUSCH represents the expected received power of the PUSCH data transmitted once, PL DL represents the downlink path loss estimate, and M represents once The number of resource blocks occupied by PUSCH data transmission, Δ MCS indicates the power offset dependent on the PUSCH data MCS, and δ PUSCH corresponds to the explicit closed loop power control command from the network.
The user equipment according to claim 30, wherein the first determining unit is further configured to determine the repeatedly transmitted PUSCH data according to the second power offset parameter P RPUSCH_OFFSET_2 of the repeatedly transmitted PUSCH data, and the following equation Actual transmit power:

P T, RPUSCH = P '+ P RPUSCH_OFFSET_2

P'=min{P MAX , P O_PUSCH +PL DL +10·log 10 (M)+Δ MCS +δ PUSCH }; or,

The actual transmit power of the repeatedly transmitted PUSCH data is determined according to the second power offset parameter P RPUSCH_OFFSET_2 of the repeatedly transmitted PUSCH data, and the following equation:

P T, RPUSCH = P MAX + P RPUSCH_OFFSET_2 ,

Where P T, RPUSCH represents the actual transmit power of the repeatedly transmitted PUSCH data, P MAX represents the maximum transmit power, P O_RPUSCH represents the expected received power of the PUSCH data transmitted once, PL DL represents the downlink path loss estimate, and P RPUSCH_OFFSET_2 represents The second power offset parameter of the repeatedly transmitted PUSCH data, M represents the number of resource blocks occupied by the primary PUSCH data transmission, Δ MCS represents the power offset dependent on the PUSCH data MCS, and δ PUSCH corresponds to the explicit closed loop power control from the network command.
The user equipment according to claim 30, wherein the first determining unit is further configured to determine an actual transmit power of the repeatedly transmitted PUSCH data according to the repeated transmission times N PUSCH of the repeatedly transmitted PUSCH data and the following equation:

P T, RPUSCH = min{P MAX , P'-10·log 10 (N PUSCH )}

P '= P O_PUSCH + PL DL + 10 · log 10 (M) + Δ MCS + δ PUSCH,

Where P T, RPUSCH represents the actual transmit power of the repeatedly transmitted PUSCH data, P MAX represents the maximum transmit power, P O_RPUSCH represents the expected received power of the PUSCH data transmitted once, PL DL represents the downlink path loss estimate, and M represents once The number of resource blocks occupied by PUSCH data transmission, Δ MCS represents the power offset of the MCS depending on the PUSCH data, and δ PUSCH corresponds to an explicit closed loop power control command from the network.
The user equipment according to claim 27, wherein the transmitting unit is further configured to transmit the pilot symbol at the same transmit power as the repeatedly transmitted PUSCH data symbol when transmitting a pilot symbol, or The pilot symbols are always transmitted at maximum power.
The user equipment according to claim 27, wherein the transmitting unit is further configured to transmit the repeatedly transmitted PUSCH data according to an existing power control mechanism before the radio frequency resource control RRC connection establishment, or to always repeat the maximum power transmission. Transmitted PUSCH data.
The user equipment according to claim 27, wherein the first determining unit is further configured to determine a transmit power of the repeatedly transmitted PUCCH data according to a power control parameter of the repeatedly transmitted PUCCH data; or, according to repeatedly transmitting the PUCCH data The number of transmissions N PUCCH is repeated to determine the transmission power of the repeatedly transmitted PUCCH data.
The user equipment of claim 39, wherein the power control parameters for repeatedly transmitting PUCCH data comprises:

User-specific parameters for network notifications.
The user equipment according to claim 40, wherein the user equipment-specific parameters comprise: parameters set for repeatedly transmitting PUCCH data;

The parameters set for repeatedly transmitting PUCCH data include at least one of the following:

Repeating transmission of the expected received power P O_RPUCCH corresponding to the PUCCH data; repeatedly transmitting the path loss compensation factor α RPUCCH corresponding to the PUCCH data;

The first power offset parameter P RPUCCH_OFFSET_1 of the repeatedly transmitted PUCCH data, and the second power offset parameter P RPUCCH_OFFSET_2 of the repeatedly transmitted PUSCH data.
The user equipment according to claim 41, wherein the first determining unit is further configured to determine an actual of the repeatedly transmitted PUCCH data according to a desired received power P O_RPUCCH parameter of the repeatedly transmitted PUCCH data, and the following equation Transmit power:

P T, RPUCCH = min{P MAX , P O_RPUCCH +PL DL +Δ Format +δ PUCCH },

Where P T, RPUCCH represents the actual transmit power of the repeatedly transmitted PUCCH data, P MAX represents the maximum transmit power, P O_RPUCCH represents the expected received power of the repeatedly transmitted PUCCH data, PL DL represents the downlink path loss estimate, and Δ Format represents The power offset associated with the PUCCH format, δ PUCCH corresponds to an explicit closed loop power control command from the network.
The user equipment according to claim 41, wherein the first determining unit is further configured to determine an actual transmission of the repeatedly transmitted PUCCH data according to a path loss compensation factor α RPUCCH of the repeatedly transmitted PUCCH data, and the following equation power:

P T,RPUCCH =min{P MAX ,P O_PUCCH +PL DL '+Δ Format +δ PUCCH }

PL DL '=α RPUCCH ·PL DL ,

Where P T, RPUCCH represents the actual transmit power of the repeatedly transmitted PUCCH data, P MAX represents the maximum transmit power, P O_RPUCCH represents the expected received power of the PUCCH data transmitted once, PL DL represents the downlink path loss estimate, α RPUCCH represents The path loss compensation factor of the repeatedly transmitted PUCCH data, Δ Format represents the power offset associated with the PUCCH format, and δ PUCCH corresponds to the explicit closed loop power control command from the network.
The user equipment according to claim 41, wherein the first determining unit is further configured to: according to a desired received power P O_RPUCCH of the repeatedly transmitted PUCCH data, a path loss compensation factor α RPUCCH of the repeatedly transmitted PUCCH data, and The following equation determines the actual transmit power of the repeatedly transmitted PUCCH data:

P T,RPUCCH =min{P MAX ,P O_RPUCCH +PL DL '+Δ Format +δ PUCCH }

PL DL '=α RPUCCH ·PL DL ,

Where P T, RPUCCH represents the actual transmit power of the repeatedly transmitted PUCCH data, P MAX represents the maximum transmit power, P O_RPUCCH represents the expected received power of the repeatedly transmitted PUCCH data, PL DL represents the downlink path loss estimate, α RPUCCH represents The path loss compensation factor of the repeatedly transmitted PUCCH data, Δ Format represents the power offset associated with the PUCCH format, and δ PUCCH corresponds to the explicit closed loop power control command from the network.
The user equipment according to claim 41, wherein the first determining unit is further configured to determine the repeatedly transmitted PUCCH data according to the first power offset parameter P RPUCCH_OFFSET_1 of the repeatedly transmitted PUCCH data, and the following equation Actual transmit power:

P T,RPUCCH =min{P MAX ,P'+P RPUCCH_OFFSET_1 }

P'=P O_PUCCH +PL DL +Δ Format +δ PUCCH ,

Where P T, RPUCCH represents the actual transmit power of the repeatedly transmitted PUCCH data, P MAX represents the maximum transmit power, P O_RPUCCH represents the expected received power of the PUCCH data transmitted once, PL DL represents the downlink path loss estimate, and Δ Format is The power offset associated with the PUCCH format, δ PUCCH corresponds to an explicit closed loop power control command from the network.
The user equipment according to claim 41, wherein the first determining unit is further configured to determine an actual of repeatedly transmitted PUCCH data according to a second power offset parameter P RPUCCH_OFFSET_2 of the repeatedly transmitted PUCCH data and the following equation Transmit power:

P T, RPUCCH = P' + P RPUCCH_OFFSET_2

P'=min{P MAX , P O_PUCCH +PL DL +Δ Format +δ PUCCH };

Alternatively, the actual transmit power of the repeatedly transmitted PUCCH data is determined according to the following equation:

P T, RPUCCH = P MAX + P RPUCCH_OFFSET_2 ,

Where P T, RPUCCH represents the actual transmit power of the repeatedly transmitted PUCCH data, P MAX represents the maximum transmit power, P O_RPUCCH represents the expected received power of the PUSCH data transmitted once, PL DL represents the downlink path loss estimate, and Δ Format is PUCCH format associated with the power offset, δ PUCCH corresponding to clear the closed loop power control commands from the network.
The user equipment according to claim 41, wherein the first determining unit is further configured to determine an actual transmit power of the repeatedly transmitted PUCCH data according to the repeated transmission times N PUCCH of the repeatedly transmitted PUCCH data and the following equation:

P T, RPUCCH = min{P MAX , P'-10·log 10 (N PUCCH )}

P'=P O_PUCCH +PL DL +Δ Format +δ PUCCH ,

Where P T, RPUCCH represents the actual transmit power of the repeatedly transmitted PUCCH data, P MAX represents the maximum transmit power, P O_RPUCCH represents the expected received power of the PUCCH data transmitted once, PL DL represents the downlink path loss estimate, and Δ Format represents The power offset associated with the PUCCH format, δ PUCCH corresponds to an explicit closed loop power control command from the network.
The user equipment of claim 41, wherein the transmitting unit is further configured to When a pilot symbol is transmitted, the pilot symbol is transmitted at the same transmit power as the repeatedly transmitted PUCCH data symbol, or the pilot symbol is always transmitted at maximum power.
The user equipment according to any one of claims 41 to 48, wherein the transmitting unit is further configured to transmit repeatedly transmitted PUCCH data according to an existing power control mechanism before the RRC connection is established; or, always at maximum power Transmitted PUCCH data is transmitted.
A base station, the base station includes: a second determining unit and a second transmitting unit; wherein

The second determining unit is configured to determine, when the number of repeated transmissions of the physical uplink shared channel PUSCH data of the user equipment is greater than the K PUSCH , the power control parameter of the repeatedly transmitted PUSCH data of the user equipment; Determining, by the user equipment, a power control parameter of the repeatedly transmitted PUCCH data when the number of repeated transmissions of the uplink control channel PUCCH data is greater than or K PUCCH ;

The second transmitting unit is configured to transmit the power control parameter to a corresponding user equipment.

Wherein said K PUSCH K PUCCH and a predefined value.
The base station according to claim 50, wherein the power control parameters of the repeatedly transmitted PUSCH data comprise:

a parameter set for repeated transmission of PUSCH data;

The parameters set for repeatedly transmitting PUSCH data include at least one of the following:

Repeating transmission of the expected received power P O_RPUSCH corresponding to the PUSCH data; repeatedly transmitting the path loss compensation factor α RPUSCH corresponding to the PUSCH data;

The first power offset parameter P RPUSCH_OFFSET_1 of the repeatedly transmitted PUSCH data, and the second power offset parameter P RPUSCH_OFFSET_2 of the repeatedly transmitted PUSCH data.
The base station according to claim 50 or 51, wherein the power control parameters of the repeatedly transmitted PUCCH data include:

a parameter set for repeated transmission of PUCCH data;

The parameters set for repeatedly transmitting PUCCH data include at least one of the following:

Repeating transmission of the expected received power P O_RPUCCH corresponding to the PUCCH data; repeatedly transmitting the path loss compensation factor α RPUCCH corresponding to the PUCCH data;

The first power offset parameter P RPUCCH_OFFSET_1 of the repeatedly transmitted PUCCH data, and the second power offset parameter P RPUCCH_OFFSET_2 of the repeatedly transmitted PUSCH data.
A power control system, the system comprising:

And the user equipment is configured to: when the number of repeated transmissions of the PUSCH data of the physical uplink shared channel is greater than the K PUSCH , send the repeatedly transmitted PUSCH data with a power less than or equal to the maximum transmit power; when the number of repeated transmissions of the physical uplink control channel PUCCH data is greater than K In PUCCH , the repeatedly transmitted PUCCH data is transmitted at a power less than or equal to the maximum transmit power;

Wherein said K PUSCH K PUCCH and a predefined value.
The system of claim 53 wherein the system further comprises:

a base station configured to notify a power control parameter of the repeatedly transmitted PUSCH data of the user equipment when the number of repeated transmissions of PUSCH data of the user equipment is greater than K PUSCH ; and repeat transmission of PUCCH data of the user equipment When the number of times is greater than or K PUCCH , the power control parameter of the repeatedly transmitted PUCCH data of the user equipment is notified.
A computer storage medium having stored therein computer executable instructions for performing the power control method of any one of claims 1 to 23; and/or

The computer executable instructions are further for performing the power control method of any one of claims 24 to 26.