WO2015188513A1 - 功率控制方法、用户设备、基站及***、存储介质 - Google Patents
功率控制方法、用户设备、基站及***、存储介质 Download PDFInfo
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- WO2015188513A1 WO2015188513A1 PCT/CN2014/087271 CN2014087271W WO2015188513A1 WO 2015188513 A1 WO2015188513 A1 WO 2015188513A1 CN 2014087271 W CN2014087271 W CN 2014087271W WO 2015188513 A1 WO2015188513 A1 WO 2015188513A1
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- pucch
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/12—Outer and inner loops
Definitions
- 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.
- Machine Type Communication also known as Machine to Machine (M2M) User Equipment (UE)
- MTC Machine Type Communication
- M2M Machine to Machine
- UE User Equipment
- GSM Global System of Mobile communication
- 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.
- 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.
- an embodiment of the present invention provides a power control method, where the method includes:
- the repeatedly transmitted PUSCH data is transmitted with a power less than or equal to the maximum transmit power
- the repeatedly transmitted PUCCH data is transmitted at a power less than or equal to the maximum transmit power
- the K PUSCH and the K PUCCH are predefined values.
- an embodiment of the present invention provides a power control method, where the method includes:
- the K PUSCH and the K PUCCH are predefined values.
- an embodiment of the present invention provides a user equipment, where the user equipment includes:
- 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.
- 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
- the K PUSCH and the K PUCCH are predefined values.
- 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.
- the K PUSCH and the K PUCCH are predefined values.
- an embodiment of the present invention provides a power control system, where the system includes:
- 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;
- the K PUSCH and the K PUCCH are predefined values.
- 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.
- 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 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
- FIG. 1 is a schematic diagram 1 of an implementation flow of a power control method according to an embodiment of the present invention
- FIG. 2 is a second schematic diagram of an implementation flow of a power control method according to an embodiment of the present invention.
- FIG. 3 is a functional structural diagram of a user equipment in an embodiment of the present invention.
- FIG. 4 is a functional structural diagram of a base station in an embodiment of the present invention.
- FIG. 5 is a schematic illustration of a power control system in accordance with an embodiment of the present 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 + ⁇ Format + ⁇ PUCCH ⁇ ,(1)
- 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)
- P O_PUCCH represents the PUCCH data of one transmission.
- 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)
- PL DL represents the estimated downlink loss of the user equipment (in dB)
- ⁇ Format is the power offset (in dB) related to the PUCCH format
- ⁇ 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 + ⁇ PL DL +10 ⁇ log 10 (M)+ ⁇ MCS + ⁇ PUSCH ⁇ ,(2)
- 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)
- P O_PUSCH represents the expected received power of the PUSCH data transmitted at a time
- ⁇ ⁇ 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
- M represents the occupation of the PUSCH data transmission.
- the number of resource blocks, ⁇ MCS represents the power offset of the Modulation and Coding Scheme (MCS) dependent on the PUSCH data
- 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 ⁇ The PUSCH is a specific value corresponding to the closed-loop power control command field for PUSCH data power control
- the ⁇ PUCCH is a specific value corresponding to the closed-loop power control command field for PUCCH data power control.
- 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.
- 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.
- 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.
- 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.
- P MAX maximum transmission power
- 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.
- 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.
- 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.
- a user equipment also referred to as a terminal
- 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.
- the K PUSCH and the K PUCCH are predefined values.
- the method 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.
- the power control parameter packet of the repeatedly transmitted PUSCH data include:
- the user equipment-specific parameters include:
- the parameters set for repeatedly transmitting PUSCH data include at least one of the following:
- 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.
- 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)+ ⁇ MCS + ⁇ PUSCH ⁇
- 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)
- 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
- ⁇ MCS represents the power offset of the modulation coding scheme MCS depending on the PUSCH data
- ⁇ PUSCH corresponds to the network from the network. Clear closed loop power control commands.
- 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.
- 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 ⁇ 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)+ ⁇ MCS + ⁇ PUSCH ⁇
- 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
- ⁇ 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
- ⁇ MCS represents the power offset dependent on the PUSCH data MCS
- ⁇ PUSCH corresponds to the explicit closed loop power control command from the network.
- 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 ⁇ 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)+ ⁇ MCS + ⁇ PUSCH ⁇
- 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
- ⁇ 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
- ⁇ MCS represents the power offset of the MCS depending on the PUSCH data
- ⁇ PUSCH corresponds to the explicit closed loop power control from the network command.
- 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 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) + ⁇ MCS + ⁇ PUSCH,
- 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
- M represents once The number of resource blocks occupied by PUSCH data transmission
- ⁇ MCS indicates the power offset dependent on the PUSCH data MCS
- ⁇ PUSCH corresponds to the explicit closed loop power control command from the network.
- 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 second power offset parameter P RPUSCH_OFFSET_2 of the repeatedly transmitted PUSCH data, and the following equation:
- P' min ⁇ P MAX , P O_PUSCH +PL DL +10 ⁇ log 10 (M)+ ⁇ MCS + ⁇ PUSCH ⁇ ;
- RPUSCH P MAX + P RPUSCH_OFFSET_2 ,
- 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
- 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
- ⁇ MCS represents the power offset of the PUSCH data MCS
- ⁇ PUSCH corresponds to the explicit closed loop power control from the network command.
- P T,RPUSCH P'+P RPUSCH_OFFSET_2
- P' min ⁇ P MAX , P O_PUSCH +PL DL +10 ⁇ log 10 (M)+ ⁇ MCS + ⁇ PUSCH ⁇ ,
- 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.
- the size of the ⁇ 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 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 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 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)+ ⁇ MCS + ⁇ PUSCH ,
- 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
- M represents once
- ⁇ MCS represents the power offset of the MCS depending on the PUSCH data
- ⁇ 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.
- the method when the pilot symbol is transmitted, the method further includes:
- 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.
- the method 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.
- the power control parameters of the repeatedly transmitting PUCCH data include
- the user equipment-specific parameters include:
- the parameters set for repeatedly transmitting PUCCH data include at least one of the following:
- 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.
- 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 + ⁇ Format + ⁇ PUCCH ⁇ ,
- RPUCCH represents the actual transmit power of the repeatedly transmitted PUCCH data
- P MAX represents the maximum transmit power (in dBm)
- P O_RPUCCH represents the expected received power of the repeatedly transmitted PUCCH data (in dBm)
- PL DL represents the downlink path loss estimate
- ⁇ Format represents the power offset associated with the PUCCH format
- ⁇ 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 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 path loss compensation factor ⁇ RPUCCH of the repeatedly transmitted PUCCH data, and the following equation:
- P T,RPUCCH min ⁇ P MAX ,P O_PUCCH +PL DL '+ ⁇ Format + ⁇ PUCCH ⁇
- 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
- ⁇ RPUCCH represents The path loss compensation factor of the repeatedly transmitted PUCCH data
- ⁇ Format represents the power offset associated with the PUCCH format
- ⁇ PUCCH corresponds to the explicit closed loop power control command from the network.
- 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 of the repeatedly transmitted PUCCH data, the path loss compensation factor ⁇ RPUCCH of the repeatedly transmitted PUCCH data, and the following equation:
- P T,RPUCCH min ⁇ P MAX ,P O_RPUCCH +PL DL '+ ⁇ Format + ⁇ PUCCH ⁇
- 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
- ⁇ RPUCCH represents The path loss compensation factor of the repeatedly transmitted PUCCH data
- ⁇ Format represents the power offset associated with the PUCCH format
- ⁇ PUCCH corresponds to the explicit closed loop power control command from the network.
- 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 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 + ⁇ Format + ⁇ PUCCH ,
- 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
- ⁇ Format is The power offset associated with the PUCCH format
- ⁇ PUCCH corresponds to an explicit closed loop power control command from the network.
- 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 second power offset parameter P RPUCCH_OFFSET_2 of the repeatedly transmitted PUCCH data and the following equation:
- P' min ⁇ P MAX , P O_PUCCH +PL DL + ⁇ Format + ⁇ PUCCH ⁇ ,
- 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
- ⁇ Format is PUCCH format associated with the power offset, ⁇ PUCCH corresponding to clear the closed loop power control commands from the network.
- P' min ⁇ P MAX , P O_PUCCH +PL DL + ⁇ Format + ⁇ PUCCH ⁇ ,
- 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.
- the size of the ⁇ 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 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 number of repeated transmissions N PUCCH of the repeatedly transmitted PUCCH data and the following equation:
- P' P O_PUCCH +PL DL + ⁇ Format + ⁇ PUCCH ,
- 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
- ⁇ Format represents The power offset associated with the PUCCH format
- ⁇ 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.
- the method when the pilot symbol is transmitted, the method further includes:
- 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.
- 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.
- 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.
- step 201 and step 202 are in no particular order.
- the power control parameter for repeatedly transmitting PUSCH data includes:
- the parameters set for repeatedly transmitting PUSCH data include at least one of the following:
- 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 are identical to each other.
- the power control parameter for repeatedly transmitting PUCCH data includes:
- the parameters set for repeatedly transmitting PUCCH data include at least one of the following:
- 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 are identical to each other.
- 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.
- the user equipment includes: a detecting unit 31 and a transmitting unit 32; wherein
- 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.
- the power control parameters of the repeatedly transmitted PUSCH data include:
- the user equipment-specific parameters include:
- the parameters set for repeatedly transmitting PUSCH data include at least one of the following:
- 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 are identical to each other.
- 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:
- P T,RPUSCH min ⁇ P MAX ,P O_RPUSCH +PL DL +10 ⁇ log 10 (M)+ ⁇ MCS + ⁇ PUSCH ⁇
- 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
- M represents the primary PUSCH
- ⁇ MCS represents the power offset of the modulation coding scheme MCS dependent on the PUSCH data
- the ⁇ PUSCH corresponds to an explicit closed loop power control command from the network.
- 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 ⁇ 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)+ ⁇ MCS + ⁇ PUSCH ⁇
- 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
- ⁇ 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
- ⁇ MCS represents the power offset dependent on the PUSCH data MCS
- ⁇ PUSCH corresponds to the explicit closed loop power control command from the network.
- the first determination unit 33 is further configured according to the path loss compensation factor parameter ⁇ 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 is determined
- P T,RPUSCH min ⁇ P MAX ,P O_RPUSCH +PL DL '+10 ⁇ log 10 (M)+ ⁇ MCS + ⁇ PUSCH ⁇
- 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
- ⁇ 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
- ⁇ MCS represents the power offset of the MCS depending on the PUSCH data
- ⁇ PUSCH corresponds to the explicit closed loop power control from the network command.
- 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)+ ⁇ MCS + ⁇ PUSCH ,
- 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
- M represents once The number of resource blocks occupied by PUSCH data transmission
- ⁇ MCS indicates the power offset dependent on the PUSCH data MCS
- ⁇ PUSCH corresponds to the explicit closed loop power control command from the network.
- 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' min ⁇ P MAX , P O_PUSCH +PL DL +10 ⁇ log 10 (M)+ ⁇ MCS + ⁇ PUSCH ⁇ ;
- RPUSCH P MAX + P RPUSCH_OFFSET_2 ,
- 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
- 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
- ⁇ MCS represents the power offset dependent on the PUSCH data MCS
- ⁇ PUSCH corresponds to the explicit closed loop power control from the network command.
- 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)+ ⁇ MCS + ⁇ PUSCH ,
- 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
- M represents once The number of resource blocks occupied by PUSCH data transmission
- ⁇ MCS represents the power offset of the MCS depending on the PUSCH data
- ⁇ PUSCH corresponds to an explicit closed loop power control command from the network.
- 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.
- 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.
- 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.
- the power control parameters of the repeatedly transmitted PUCCH data include user equipment-specific parameters notified by the network.
- the user equipment-specific parameters include:
- the parameters set for repeatedly transmitting PUCCH data include at least one of the following:
- 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 + ⁇ Format + ⁇ PUCCH ⁇ ,
- 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
- ⁇ Format represents The power offset associated with the PUCCH format
- ⁇ PUCCH corresponds to an explicit closed loop power control command from the network.
- 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 ⁇ RPUCCH of the repeatedly transmitted PUCCH data, and the following equation:
- P T,RPUCCH min ⁇ P MAX ,P O_PUCCH +PL DL '+ ⁇ Format + ⁇ PUCCH ⁇
- 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
- ⁇ RPUCCH represents The path loss compensation factor of the repeatedly transmitted PUCCH data
- ⁇ Format represents the power offset associated with the PUCCH format
- ⁇ PUCCH corresponds to the explicit closed loop power control command from the network.
- 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 ⁇ RPUCCH of the repeatedly transmitted PUCCH data, and the following equation.
- Actual transmit power P O_RPUCCH of the repeatedly transmitted PUCCH data, the path loss compensation factor ⁇ RPUCCH of the repeatedly transmitted PUCCH data, and the following equation.
- P T,RPUCCH min ⁇ P MAX ,P O_RPUCCH +PL DL '+ ⁇ Format + ⁇ PUCCH ⁇
- 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
- ⁇ RPUCCH represents The path loss compensation factor of the PUCCH data is repeatedly transmitted
- ⁇ Format represents the power offset associated with the PUCCH format
- ⁇ PUCCH corresponds to the explicit closed loop power control command from the network.
- 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 + ⁇ Format + ⁇ PUCCH ,
- 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
- ⁇ Format is The power offset associated with the PUCCH format
- ⁇ PUCCH corresponds to an explicit closed loop power control command from the network.
- 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' min ⁇ P MAX , P O_PUCCH +PL DL + ⁇ Format + ⁇ PUCCH ⁇ ,
- the actual transmit power of the repeatedly transmitted PUCCH data is determined according to the following equation:
- 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
- ⁇ Format is PUCCH format associated with the power offset, ⁇ PUCCH corresponding to clear the closed loop power control commands from the network.
- 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' P O_PUCCH +PL DL + ⁇ Format + ⁇ PUCCH ,
- 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
- ⁇ Format represents The power offset associated with the PUCCH format
- ⁇ PUCCH corresponds to an explicit closed loop power control command from the network.
- 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.
- 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.
- 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.
- 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.
- the power control parameter for repeatedly transmitting PUSCH data includes:
- the parameters set for repeatedly transmitting PUSCH data include at least one of the following:
- 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 are identical to each other.
- the power control parameter for repeatedly transmitting PUCCH data includes:
- the parameters set for repeatedly transmitting PUCCH data include at least one of the following:
- 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.
- 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 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 are identical to each other.
- 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:
- P T,RPUSCH min ⁇ P MAX ,P O_RPUSCH +PL DL +10 ⁇ log 10 (M)+ ⁇ MCS + ⁇ PUSCH ⁇
- 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
- M represents the primary PUSCH
- ⁇ MCS represents the power offset of the modulation coding scheme MCS dependent on the PUSCH data
- the ⁇ PUSCH corresponds to an explicit closed loop power control command from the network.
- 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 ⁇ 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)+ ⁇ MCS + ⁇ PUSCH ⁇
- 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
- ⁇ 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
- ⁇ MCS represents the power offset dependent on the PUSCH data MCS
- ⁇ PUSCH corresponds to the explicit closed loop power control command from the network.
- 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 ⁇ RPUSCH of the repeatedly transmitted PUSCH data, and the following equation.
- Actual transmit power of transmitted PUSCH data P O_PUSCH of the repeatedly transmitted PUSCH data and a path loss compensation factor parameter ⁇ 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)+ ⁇ MCS + ⁇ PUSCH ⁇
- 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
- ⁇ 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
- ⁇ MCS represents the power offset of the MCS depending on the PUSCH data
- ⁇ PUSCH corresponds to the explicit closed loop power control from the network command.
- 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) + ⁇ MCS + ⁇ PUSCH,
- 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
- M represents once The number of resource blocks occupied by PUSCH data transmission
- ⁇ MCS indicates the power offset dependent on the PUSCH data MCS
- ⁇ PUSCH corresponds to the explicit closed loop power control command from the network.
- 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' min ⁇ P MAX , P O_PUSCH +PL DL +10 ⁇ log 10 (M)+ ⁇ MCS + ⁇ 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:
- RPUSCH P MAX + P RPUSCH_OFFSET_2 ,
- 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
- 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
- ⁇ MCS represents the power offset dependent on the PUSCH data MCS
- ⁇ PUSCH corresponds to the explicit closed loop power control from the network command.
- 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.
- 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) + ⁇ MCS + ⁇ PUSCH,
- 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
- M represents once
- ⁇ MCS represents the power offset of the MCS depending on the PUSCH data
- ⁇ 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.
- 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.
- 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.
- 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:
- 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 + ⁇ Format + ⁇ PUCCH ⁇ ,
- 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
- ⁇ Format represents The power offset associated with the PUCCH format
- ⁇ PUCCH corresponds to an explicit closed loop power control command from the network.
- 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 ⁇ RPUCCH of the repeatedly transmitted PUCCH data, and the following equation:
- P T,RPUCCH min ⁇ P MAX ,P O_PUCCH +PL DL '+ ⁇ Format + ⁇ PUCCH ⁇
- 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
- ⁇ RPUCCH represents The path loss compensation factor of the repeatedly transmitted PUCCH data
- ⁇ Format represents the power offset associated with the PUCCH format
- ⁇ PUCCH corresponds to the explicit closed loop power control command from the network.
- 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 ⁇ RPUCCH of the repeatedly transmitted PUCCH data, and the following equation.
- Actual transmit power P O_RPUCCH of the repeatedly transmitted PUCCH data, the path loss compensation factor ⁇ RPUCCH of the repeatedly transmitted PUCCH data, and the following equation.
- P T,RPUCCH min ⁇ P MAX ,P O_RPUCCH +PL DL '+ ⁇ Format + ⁇ PUCCH ⁇
- 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
- ⁇ RPUCCH represents The path loss compensation factor of the repeatedly transmitted PUCCH data
- ⁇ Format represents the power offset associated with the PUCCH format
- ⁇ PUCCH corresponds to the explicit closed loop power control command from the network.
- 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 + ⁇ Format + ⁇ PUCCH ,
- 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
- ⁇ Format is The power offset associated with the PUCCH format
- ⁇ PUCCH corresponds to an explicit closed loop power control command from the network.
- 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' min ⁇ P MAX , P O_PUCCH +PL DL + ⁇ Format + ⁇ PUCCH ⁇ ,
- 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
- ⁇ Format is PUCCH format associated with the power offset, ⁇ PUCCH corresponding to clear the closed loop power control commands from the network.
- 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.
- 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' P O_PUCCH +PL DL + ⁇ Format + ⁇ PUCCH ,
- 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
- ⁇ Format represents The power offset associated with the PUCCH format
- ⁇ 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.
- 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.
- 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.
- 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.
- 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.
- 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 network 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.
- SRS uplink sounding reference signal
- RA Random Access
- 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.
- 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 .
- 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:
- 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.
- 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.
- OFDM Orthogonal Frequency Division Multiplexing
- the user equipment obtains the power offset ⁇ MCS value of the MCS used depending on the PUSCH data according to the following equation:
- K is the transport block size (TBS)
- N RE is the number of resource units carrying the PUSCH data in the M resource blocks
- 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 ⁇ MCS is approximately 3.7 dB by the following procedure:
- P T,RPUSCH min ⁇ P MAX ,P O_RPUSCH +PL DL +10 ⁇ log 10 (M)+ ⁇ MCS + ⁇ PUSCH ⁇ ,
- RPUSCH Determining the actual transmit power P T of the repeatedly transmitted PUSCH data , RPUSCH is:
- 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.
- the network 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 ⁇ 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 ⁇ RPUSCH are notified to the user equipment.
- 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 ⁇ RPUSCH of the repeatedly transmitted PUSCH data is determined , and the above-described path loss compensation factor ⁇ RPUSCH is notified to the user equipment.
- 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 ⁇ RPUSCH includes:
- 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 ⁇ RPUSCH of the repeatedly transmitted PUSCH data.
- 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 ⁇ PUSCH takes 0 dB, the downlink loss of the user equipment is PL DL is about 138 dB, and the path loss compensation factor ⁇ RPUSCH of the repeated transmission of PUSCH data is 0.8; it is assumed that the PUSCH data transmission is occupied.
- the user equipment obtains the power offset ⁇ MCS value of the MCS used depending on the PUSCH data according to the following equation:
- K TBS
- N RE represents the number of resource units carrying PUSCH data in M resource blocks
- 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 ⁇ MCS is approximately 3.7 dB by the following procedure:
- P T,RPUSCH min ⁇ P MAX ,P O_PUSCH +PL DL '+10 ⁇ log 10 (M)+ ⁇ MCS + ⁇ PUSCH ⁇
- RPUSCH Determining the actual transmit power P T of the repeatedly transmitted PUSCH data , RPUSCH is:
- 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.
- 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 ⁇ 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 ⁇ RPUSCH .
- 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 ⁇ 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 ⁇ RPUSCH .
- 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 ⁇ RPUSCH include:
- 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
- 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 ⁇ RPUSCH of the repeatedly transmitted PUSCH data.
- 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 ⁇ 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 ⁇ RPUSCH of the repeatedly transmitted PUSCH data is 0.9; it is assumed that the PUSCH data transmission is occupied.
- the user equipment obtains the power offset ⁇ MCS value of the MCS used depending on the PUSCH data according to the following equation:
- K TBS
- N RE represents the number of resource units carrying PUSCH data in M resource blocks
- 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 ⁇ MCS is approximately 3.7 dB by the following procedure:
- P T,RPUSCH min ⁇ P MAX ,P O_RPUSCH +PL DL '+10 ⁇ log 10 (M)+ ⁇ MCS + ⁇ PUSCH ⁇
- RPUSCH Determining the actual transmit power P T of the repeatedly transmitted PUSCH data , RPUSCH is:
- 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.
- the network 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.
- 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 .
- 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:
- 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 .
- 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 ⁇ 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 user equipment obtains the power offset ⁇ MCS value of the MCS used depending on the PUSCH data according to the following equation:
- K represents TBS
- N RE represents the number of resource units carrying PUSCH data in M resource blocks
- L represents the number of valid information bits carried by each resource unit.
- the user equipment can determine that the value of ⁇ MCS is about 3.7 dB by the following process:
- P T,RPUSCH min ⁇ P MAX ,P'+P RPUSCH_OFFSET_1 ⁇
- P ' P O_PUSCH + PL DL + 10 ⁇ log 10 (M) + ⁇ MCS + ⁇ PUSCH,
- RPUSCH Determining the actual transmit power PT of the repeatedly transmitted PUSCH data, RPUSCH is:
- 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.
- the network 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.
- 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.
- 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:
- 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 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 ⁇ 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 user equipment obtains the power offset ⁇ MCS value of the MCS used depending on the PUSCH data according to the following equation:
- K represents TBS
- N RE represents the number of resource units carrying PUSCH data in M resource blocks
- L represents the number of valid information bits carried by each resource unit.
- the user equipment can determine that the value of ⁇ MCS is about 3.7 dB by the following process:
- P' min ⁇ P MAX , P O_PUSCH +PL DL +10 ⁇ log 10 (M)+ ⁇ MCS + ⁇ PUSCH ⁇ ,
- RPUSCH P MAX + P RPUSCH_OFFSET_2 ,
- RPUSCH Determining the actual transmit power P T of the repeatedly transmitted PUSCH data , RPUSCH is:
- 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.
- the network 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.
- 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.
- 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:
- 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 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.
- 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 user equipment obtains the power offset ⁇ MCS value of the MCS used depending on the PUSCH data according to the following equation:
- K represents TBS
- NRE represents the number of resource units carrying PUSCH data in M resource blocks
- L represents the number of valid information bits carried by each resource unit.
- the user equipment can determine that the value of ⁇ MCS is about 3.7 dB by the following process:
- P T, RPUSCH min ⁇ P MAX , P'-10 ⁇ log 10 (N PUSCH ) ⁇
- P ' P O_PUSCH + PL DL + 10 ⁇ log 10 (M) + ⁇ MCS + ⁇ PUSCH,
- RPUSCH Determining the actual transmit power P T of the repeatedly transmitted PUSCH data , RPUSCH is:
- 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.
- 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.
- 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.
- the closed-loop power control command used to compensate the wireless channel.
- 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.
- the network 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.
- 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 .
- 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:
- 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.
- 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 ⁇ 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 ⁇ MCS of the format 1a takes a value of 0 dB.
- P T, RPUCCH min ⁇ P MAX , P O_RPUCCH +PL DL + ⁇ Format + ⁇ PUCCH ⁇ ,
- 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.
- the network 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 ⁇ 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 ⁇ RPUCCH are notified to the user equipment.
- 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 ⁇ RPUCCH of the repeatedly transmitted PUCCH data, and notifies the user equipment of the path loss compensation factor ⁇ RPUCCH .
- 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 ⁇ RPUCCH includes:
- 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 ⁇ RPUCCH of the repeatedly transmitted PUCCH data.
- the maximum transmit power P MAX of the user equipment is 23 dBm
- the expected received power P O_PUCCH of the PUCCH data for one transmission is -100 dBm
- the value of the closed loop power control command ⁇ PUCCH is 0 dB
- the downlink path loss PLDL estimated by the user equipment is determined.
- the value is approximately 135 dB
- the path loss compensation factor ⁇ RPUCCH of the repeatedly transmitted PUCCH data is 0.9
- the current PUCCH format is assumed to be PUCCH format 1a
- the power offset ⁇ MCS of the format 1a is 0 dB.
- P T,RPUCCH min ⁇ P MAX ,P O_PUCCH +PL DL '+ ⁇ Format + ⁇ PUCCH ⁇
- RPUCCH Determining the actual transmit power P T of the repeatedly transmitted PUCCH data , RPUCCH is:
- 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.
- the network 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 ⁇ 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 ⁇ RPUCCH are notified to the user equipment.
- 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 ⁇ RPUCCH of the repeatedly transmitted PUCCH data are determined and the desired received power P O_RPUCCH and the path loss compensation factor ⁇ RPUCCH are notified to the user equipment.
- 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 ⁇ RPUCCH include:
- 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 ⁇ RPUCCH of the repeatedly transmitted PUCCH data.
- N PUCCH 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 .
- the closed-loop power control command ⁇ PUCCH takes 0 dB
- the downlink loss of the user equipment is PL DL is about 142 dB
- the path loss compensation factor ⁇ RPUCCH of the repeated transmission PUCCH data is 0.9
- the current PUCCH format is assumed to be PUCCH format. 1a
- the power offset ⁇ MCS of the format 1a takes a value of 0 dB.
- P T,RPUCCH min ⁇ P MAX ,P O_RPUCCH +PL DL '+ ⁇ Format + ⁇ PUCCH ⁇
- RPUCCH Determining the actual transmit power P T of the repeatedly transmitted PUCCH data , RPUCCH is:
- 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.
- the network 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.
- 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.
- 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:
- 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 .
- 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.
- the closed loop power control command ⁇ PUCCH takes a value of 0 dB
- the downlink loss of the user equipment is PL DL is about 142 dB
- 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 ⁇ MCS of format 1a takes a value of 0 dB.
- P T,RPUCCH min ⁇ P MAX ,P'+P RPUCCH_OFFSET_1 ⁇
- P' P O_PUCCH +PL DL + ⁇ Format + ⁇ PUCCH ,
- RPUCCH Determining the actual transmit power P T of the repeatedly transmitted PUCCH data , RPUCCH is:
- 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.
- the network 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.
- 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.
- 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:
- the maximum transmit power P MAX of the user equipment is 23 dBm
- the expected received power P O_RPUCCH of the PUCCH data for one transmission is -100 dBm
- the value of the closed loop power control command ⁇ PUCCH is 0 dB
- the downlink path loss PL estimated by the user equipment is approximately 130 dB
- the second power offset P RPUCCH_OFFSET_2 of the repeatedly transmitted PUCCH data takes a value of -2 dB
- the current PUCCH format is PUCCH format 1a
- the power offset ⁇ MCS of the format 1a takes a value of 0 dB.
- P' min ⁇ P MAX , P O_PUCCH +PL DL + ⁇ Format + ⁇ PUCCH ⁇ ,
- RPUCCH Determining the actual transmit power P T of the repeatedly transmitted PUCCH data , RPUCCH is:
- 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.
- the network 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.
- 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.
- 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:
- the maximum transmit power P MAX of the user equipment is 23 dBm
- the expected received power P O_PUCCH of the PUCCH data for one transmission is -100 dBm
- the value of the closed loop power control command ⁇ PUCCH is 0 dB
- 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 ⁇ MCS format 1a is 0dB.
- P' P O_PUCCH +PL DL + ⁇ Format + ⁇ PUCCH ,
- RPUCCH Determining the actual transmit power P T of the repeatedly transmitted PUCCH data , RPUCCH is:
- 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.
- 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.
- 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.
- the closed-loop power control command used to compensate the wireless channel.
- 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.
- 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.
- RAM random access memory
- ROM read-only memory
- magnetic disk or an optical disk.
- optical disk A medium that can store program code.
- 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.
- 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 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 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
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Abstract
本发明公开了一种功率控制方法、用户设备、基站及***、存储介质,所述方法包括:当物理上行共享信道(PUSCH)数据的重复传输次数大于KPUSCH时,以小于或等于最大发射功率的功率发送重复传输的PUSCH数据;当物理上行控制信道(PUCCH)数据的重复传输次数大于KPUSCH时,以小于或等于最大发射功率的功率发送重复传输的PUCCH数据;其中,所述KPUSCH和KPUCCH为预定义值。
Description
本发明涉及无线通信技术,具体涉及一种功率控制方法、用户设备、基站及***、存储介质。
机器类通信(MTC,Machine Type Communication)又称机器到机器(M2M,Machine To Machine)用户设备(UE,User Equipment)或终端是现阶段物联网的主要应用形式。低功耗低成本是其可大规模应用的重要保障。目前M2M技术已经得到了NEC、HP、CA、Intel、IBM、AT&T等国际知名厂商的支持及各国移动运营商的认可。目前市场上部署的M2M设备主要基于全球移动通信(GSM,Global System of Mobile communication)***。近年来,由于长期演进(LTE,Long Term Evolution)的频谱效率高,越来越多移动运营商选择LTE作为未来宽带无线通信***的演进方向。基于LTE的M2M数据业务也将更具吸引力。
但是,相关技术的功率控制机制在MTC覆盖增强场景下,存在用户设备能效低、不利于用户设备节电的问题。
发明内容
本发明实施例提供一种功率控制方法、用户设备、基站及***、存储介质,解决相关技术的功率控制机制在MTC覆盖增强场景下,存在用户设备能效低、不利于用户设备节电的问题。
本发明实施例的技术方案是这样实现的:
第一方面,本发明实施例提供一种功率控制方法,所述方法包括:
当物理上行共享信道(PUSCH)数据的重复传输次数大于KPUSCH时,以小于或等于最大发射功率的功率发送重复传输的PUSCH数据;
当物理上行控制信道(PUCCH)数据的重复传输次数大于KPUCCH时,以小于或等于最大发射功率的功率发送重复传输的PUCCH数据;
其中,所述KPUSCH和KPUCCH为预定义值。
第二方面,本发明实施例提供一种功率控制方法,所述方法包括:
当用户设备的道PUSCH数据的重复传输次数大于KPUSCH时,通知用户设备专有的重复传输的PUSCH数据的功率控制参数;
当用户设备的道PUCCH数据的重复传输次数大于KPUCCH时,通知用户设备专有的重复传输的PUCCH数据的功率控制参数;
其中,所述KPUSCH和KPUCCH为预定义值。
第三方面,本发明实施例提供一种用户设备,所述用户设备包括:
检测单元和发射单元;其中,
所述检测单元,配置为检测到PUSCH数据的重复传输次数大于KPUSCH时,触发所述发射单元以小于或等于最大发射功率的功率发送重复传输的PUSCH数据;在检测到PUCCH数据的重复传输次数大于KPUCCH时,触发所述发射单元以小于或等于最大发射功率的功率发送重复传输的PUCCH数据;
其中,所述KPUSCH和KPUCCH为预定义值。
第四方面,本发明实施例提供一种基站,所述基站包括:第二确定单元和第二发射单元;其中,
所述第二确定单元,配置为当用户设备PUSCH数据的重复传输次数大于KPUSCH时,确定所述用户设备专有的重复传输的PUSCH数据的功率控制参数;当用户设备的PUCCH数据的重复传输次数大于或KPUCCH时,确定所述用户设备专有的重复传输的PUCCH数据的功率控制参数;
所述第二发射单元,配置为将所述功率控制参数传输给对应的用户设备。
其中,所述KPUSCH和KPUCCH为预定义值。
第五方面,本发明实施例提供一种功率控制***,所述***包括:
用户设备,配置为当PUSCH数据的重复传输次数大于KPUSCH时,以小于或等于最大发射功率的功率发送重复传输的PUSCH数据;当PUCCH数据的重复传输次数大于KPUCCH时,以小于或等于最大发射功率的功率发送重复传输的PUCCH数据;
其中,所述KPUSCH和KPUCCH为预定义值。
第六方面,本发明实施例提供一种计算机存储介质,所述计算机存储介质中存储有计算机可执行指令,该计算机可执行指令用于执行上述第一方面实施例提供的功率控制方法;和/或,
该计算机可执行指令还用于执行上述第二方面实施例提供的功率控制方法。
本发明实施例中,当PUSCH数据的重复传输次数大于KPUSCH时,以小于或等于最大发射功率的功率发送重复传输的PUSCH数据;当PUCCH数据的重复传输次数大于KPUCCH时,以小于或等于最大发射功率的功率发送重复传输的PUCCH数据;这就避免了用户设备总是以最大功率发射的问题,解决了相关的功率控制机制在MTC覆盖增强场景下降低了用户设备能效、且不利于用户设备节电的问题。
图1是本发明实施例中功率控制方法的实现流程示意图一;
图2是本发明实施例中功率控制方法的实现流程示意图二;
图3是本发明实施例中用户设备的功能结构图;
图4是本发明实施例中基站的功能结构图;
图5是本发明实施例中功率控制***的示意图。
为了使本发明的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本发明的技术方案进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明的技术方案,并不用于限定本发明的保护范围。
现有LTE***的物理上行控制信道(PUCCH,Physical Uplink Control Channel)的功率控制机制如以下等式所示:
PT,PUCCH=min{PMAX,PO_PUCCH+PLDL+ΔFormat+δPUCCH},(1)
其中,PT,PUCCH表示PUCCH数据的实际发射功率,单位是分贝毫瓦(dBm),PMAX表示用户设备最大的发射功率(单位是dBm,例如23dBm),PO_PUCCH表示一次传输的PUCCH数据的期望接收功率,PO_PUCCH为通过高层信令通知给用户设备的小区专有(Cell-specific)的名义参数PO_NOMINAL_PUCCH、与用户设备专有(UE-specific)的参数PO_UE_PUCCH(单位是dBm)的加和,PLDL表示用户设备估计的下行路损(单位是dB),ΔFormat是与PUCCH格式有关的功率偏置(单位是dB),δPUCCH对应于来自网络的明确的闭环功率控制命令(单位是dB)。
现有LTE***的物理上行共享信道(PUSCH,Physical Uplink Shared Channel)的功率控制机制如以下等式所示:
PT,PUSCH=min{PMAX,PO_PUSCH+α·PLDL+10·log10(M)+ΔMCS+δPUSCH},(2)
其中,PT,PUSCH表示PUSCH数据的实际发射功率(单位是dBm),PMAX表
示最大的用户设备发射功率(单位是dBm,例如23dBm),PO_PUSCH表示一次传输的PUSCH数据的期望接收功率,PO_PUSCH等于通过高层信令通知给用户设备的小区专有(Cell-specific)的名义参数PO_NOMINAL_PUSCH与用户设备专有(UE-specific)的参数PO_UE_PUSCH的和,α=1表示全路损补偿,α<1表示部分路损补偿,即增加的路损没有被相应的发射功率的增加完全补偿,PLDL表示用户设备估计的下行路损(单位是dB),M表示一次PUSCH数据传输所占用的资源块数量,ΔMCS表示依赖于PUSCH数据的调制编码方案(MCS,Modulation and Coding Scheme)的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
在实际应用中,用于PUSCH或PUCCH数据功率控制的闭环功率控制命令字段包括2比特或1比特,对应于4种(对应2比特)或2种取值大小(对应1比特),所述δPUSCH是用于PUSCH数据功率控制的闭环功率控制命令字段所对应的具体取值,以及所述δPUCCH是用于PUCCH数据功率控制的闭环功率控制命令字段所对应的具体取值。
由于一些MTC用户设备是被安装在住宅的地下室,或者被铝合金窗或传统厚墙建筑结构所遮蔽的位置,与正常的LTE用户设备相比,这些用户设备在射频接口上会经历相当严重的穿透损耗,从而需要增强上述MTC用户设备的覆盖以实现正常的数据传输。具体地,需要增强的上行物理信道包括物理上行共享信道PUSCH和物理上行控制信道PUCCH两个信道。其中,重复传输的方法(对于上行,所述重复传输具体为PUSCH或PUCCH的重复传输)通常被用于累积足够的有用信号的能量从而实现覆盖的增强。
由于相关技术中的功率控制机制仅是优先为PUSCH数据或PUCCH数据的一次传输而设计,没有过多考虑或优化PUSCH数据或PUCCH数据重复传输的情况,并且在MTC覆盖增强场景下,用户设备估计或测量的下行路损PLDL通常是极端大的,所以如果在重复传输情况下仍然沿用相关技术
所提供等式(1)和(2)所示的PUCCH和PUSCH功率控制机制,用户设备将在用于PUCCH和PUSCH重复传输的所有子帧内始终以最大功率PMAX发射PUCCH和PUSCH数据。考虑到控制开销,处于MTC覆盖增强模式的用户设备不可能支持任意的潜在的PUCCH或PUSCH重复次数。以PUSCH为例,设想根据用户设备的最大发射功率PMAX以及期望的覆盖,某个MTC用户设备所实际需要的PUSCH重复次数为X次,但是,由于用户设备不支持X次,只支持Y次的PUSCH重复传输,其中,Y为用户设备支持的所有大于X的PUSCH重复传输次数中的最小值,在这种情况下,为了满足覆盖性能需求,用户设备只能选择执行Y次PUSCH重复传输;然而,这将导致用户设备在后面的Y-X次的重复传输中不必要的功率消耗,从而降低了用户设备的能效,最终不利于用户设备的节电。另外,对于PUCCH的重复传输,类似的问题同样存在。
本发明实施例记载一种功率控制方法,可以应用于MTC覆盖增强场景的用户设备(也可以理解为终端),如图1所示,本发明实施例记载的功率控制方法包括以下步骤:
步骤101,当PUSCH数据的重复传输次数大于KPUSCH时,以小于或等于最大发射功率的功率发送重复传输的PUSCH数据。
步骤102,当PUCCH数据的重复传输次数大于KPUCCH时,以小于或等于最大发射功率的功率发送重复传输的PUCCH数据。
其中,所述KPUSCH和KPUCCH为预定义值。
作为一个实施方式,所述发送重复传输的PUSCH数据之前,所述方法还包括:
根据重复传输PUSCH数据的功率控制参数、或者重复传输PUSCH数据的重复传输次数NPUSCH,确定重复传输的PUSCH数据的实际发射功率。
作为一个实施方式,所述重复传输的PUSCH数据的功率控制参数包
括:
网络通知的用户设备专有的参数。
作为一个实施方式,所述用户设备专有的参数,包括:
专为重复传输PUSCH数据所设定的参数;
所述专为重复传输PUSCH数据所设定的参数包括以下至少之一:
重复传输PUSCH数据对应的期望接收功率PO_RPUSCH;重复传输PUSCH数据对应的路损补偿因子αRPUSCH;
重复传输的PUSCH数据的第一功率偏置参数PRPUSCH_OFFSET_1、和重复传输的PUSCH数据的第二功率偏置参数PRPUSCH_OFFSET_2;其中,上述第一功率偏置参数和第二功率偏置参数的单位是分贝(dB)并且取值小于等于0。
作为一个实施方式,所述根据重复传输的PUSCH数据的功率控制参数确定重复传输的PUSCH数据的实际发射功率,包括:
根据重复传输的PUSCH数据的期望接收功率PO_RPUSCH参数以及以下等式,确定重复传输的PUSCH数据的实际发射功率:
PT,RPUSCH=min{PMAX,PO_RPUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH}
其中,PT,RPUSCH表示重复传输PUSCH数据的实际发射功率(单位是dBm),PMAX表示最大的发射功率(单位是dBm,如23dBm),PO_RPUSCH表示重复传输的PUSCH数据的期望接收功率(单位是dBm),PLDL表示下行路损估计,M表示一次PUSCH数据传输所占用的资源块数量,ΔMCS表示依赖于PUSCH数据的调制编码方案MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。在实际情况下,重复传输的PUSCH数据的期望的接收功率PO_RPUSCH通常低于-100dBm,所以参数PO_RPUSCH的取值范围应该保持足够的扩展。
作为一个实施方式,所述根据重复传输的PUSCH数据的功率控制参
数,确定重复传输的PUSCH数据的实际发射功率,包括:
根据重复传输的PUSCH数据的路损补偿因子αRPUSCH以及以下等式,确定重复传输的PUSCH数据的实际发射功率:
PT,RPUSCH=min{PMAX,PO_PUSCH+PLDL'+10·log10(M)+ΔMCS+δPUSCH}
PLDL'=αRPUSCH·PLDL
其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_PUSCH表示一次传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,αRPUSCH表示重复传输的PUSCH数据的路损补偿因子,M表示一次PUSCH数据传输占用的资源块数量,ΔMCS表示依赖PUSCH数据MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述根据重复传输的PUSCH数据的功率控制参数,确定重复传输的PUSCH数据的实际发射功率,包括:
根据重复传输PUSCH数据的期望接收功率PO_PUSCH和重复传输的PUSCH数据的路损补偿因子参数αRPUSCH、以及以下等式,确定重复传输的PUSCH数据的实际发射功率:
PT,RPUSCH=min{PMAX,PO_RPUSCH+PLDL'+10·log10(M)+ΔMCS+δPUSCH}
PLDL'=αRPUSCH·PLDL
其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUSCH表示重复传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,αRPUSCH表示重复传输的PUSCH数据的路损补偿因子,M表示一次PUSCH数据传输所占用的资源块数,ΔMCS表示依赖于PUSCH数据的MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述根据重复传输的PUSCH数据的功率控制参
数,确定重复传输的PUSCH数据的实际发射功率,包括:
根据重复传输的PUSCH数据的第一功率偏置参数PRPUSCH_OFFSET_1、以及以下等式,确定重复传输的PUSCH数据的实际发射功率:
PT,RPUSCH=min{PMAX,P'+PRPUSCH_OFFSET_1}
P'=PO_PUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH,
其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUSCH表示一次传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,M表示一次PUSCH数据传输所占用的资源块数,ΔMCS表示依赖PUSCH数据MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述根据重复传输的PUSCH数据的功率控制参数,确定重复传输的PUSCH数据的实际发射功率,包括:
根据重复传输的PUSCH数据的第二功率偏置参数PRPUSCH_OFFSET_2、以及以下等式,确定重复传输的PUSCH数据的实际发射功率:
PT,RPUSCH=P'+PRPUSCH_OFFSET_2
P'=min{PMAX,PO_PUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH};
或者,根据重复传输的PUSCH数据的第二功率偏置参数PRPUSCH_OFFSET_2、以及以下等式,确定重复传输的PUSCH数据的实际发射功率:
PT,RPUSCH=PMAX+PRPUSCH_OFFSET_2,
其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUSCH表示一次传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,PRPUSCH_OFFSET_2表示重复传输的PUSCH数据的第二功率偏置参数,M表示一次PUSCH数据传输所占用的资源块数量,ΔMCS表示
依赖PUSCH数据MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
对于以下公式,
PT,RPUSCH=P'+PRPUSCH_OFFSET_2
P'=min{PMAX,PO_PUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH},
由于其中的P'可以被视为一次传输的PUSCH数据的发射功率,再进一步考虑到在MTC覆盖增强场景下的极端大的路损PLDL将导致P'始终等于最大的发射功率PMAX,所以以上等式等价于:
PT,RPUSCH=PMAX+PRPUSCH_OFFSET_2;考虑到重复传输的PUSCH数据的实际发射功率PT,RPUSCH与最大的用户设备发射功率PMAX通常差异不大,所以为节省下行的控制开销,所述第二功率偏置参数PRPUSCH_OFFSET_2的取值不需要支持足够大的扩展。
由于在MTC覆盖增强场景下的极端大的下行路损PLDL以及现有闭环功率控制命令字段所对应的具体取值δPUSCH具有非常低的扩展,所以δPUSCH的大小不会对上述的P'始终等于最大功率PMAX产生影响,从而现有闭环功率控制命令在这种情况下将失去意义;因此,对于MTC覆盖增强场景下的用户设备,现有闭环功率控制命令字段可被网络重用作第二功率偏置PRPUSCH_OFFSET_2字段。
用户设备根据来自网络的重复传输的PUSCH数据的功率控制参数确定重复传输的PUSCH数据的发射功率PT,RPUSCH,这有利于网络根据对干扰和噪声以及路损的测量结果(例如在连续时间段内的持续统计和平均)及时地调整在确定的重复传输次数NPUSCH下用户设备的发射功率,从而提升了上行功率控制的灵活性,并且有利于节电。
作为一个实施方式,所述根据重复传输的PUSCH数据的功率控制参
数,确定重复传输的PUSCH数据的实际发射功率,包括:
根据重复传输PUSCH数据的重复传输次数NPUSCH以及以下等式,确定重复传输的PUSCH数据的实际发射功率:
PT,RPUSCH=min{PMAX,P'-10·log10(NPUSCH)}
P'=PO_PUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH,
其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUSCH表示一次传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,M表示一次PUSCH数据传输所占用的资源块数量,ΔMCS表示依赖于PUSCH数据的MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。用户设备根据重复传输次数NPUSCH确定重复传输的PUSCH数据的发射功率PT,RPUSCH,这简化了网络的实现复杂度,并且节省了下行控制信令开销。
作为一个实施方式,当发射导频符号时,所述方法还包括:
将所述导频符号以与所述重复传输的PUSCH数据符号相同的发射功率发射,或者,将所述导频符号始终以最大功率发射,其中,所述导频符号用于估计重复传输的PUSCH数据的信道衰落情况。
作为一个实施方式,在射频资源控制(RRC,Radio Resource Control)连接建立之前,所述方法还包括:
根据已有功率控制机制发射重复传输的PUSCH数据,或者,始终以最大功率发射重复传输的PUSCH数据。
作为一个实施方式,所述发送重复传输的PUCCH数据之前,所述方法还包括:
根据重复传输的PUCCH数据的功率控制参数,或者重复传输PUCCH数据的重复传输次数NPUCCH,确定重复传输的PUCCH数据的发射功率。
作为一个实施方式,所述重复传输PUCCH数据的功率控制参数包括
网络通知的用户设备专有的参数。
作为一个实施方式,所述用户设备专有的参数,包括:
专为重复传输PUCCH数据所设定的参数;
所述专为重复传输PUCCH数据所设定的参数包括以下至少之一:
重复传输PUCCH数据对应的期望接收功率PO_RPUCCH;重复传输PUCCH数据对应的路损补偿因子αRPUCCH;
重复传输的PUCCH数据的第一功率偏置参数PRPUCCH_OFFSET_1、和重复传输的PUCCH数据的第二功率偏置参数PRPUCCH_OFFSET_2;其中,上述第一功率偏置参数和第二功率偏置参数的单位是dB并且取值小于等于0。
作为一个实施方式,所述根据重复传输的PUCCH数据的功率控制参数确定重复传输的PUCCH数据的实际发射功率,包括:
根据重复传输的PUCCH数据的期望的接收功率PO_RPUCCH参数以及以下等式,确定重复传输的PUCCH数据的实际发射功率:
PT,RPUCCH=min{PMAX,PO_RPUCCH+PLDL+ΔFormat+δPUCCH},
其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率(单位是dBm),PO_RPUCCH表示重复传输的PUCCH数据的期望的接收功率(单位是dBm),PLDL表示下行路损估计,ΔFormat表示与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确闭环功率控制命令;在实际情况下,重复传输的PUCCH数据的期望的接收功率PO_RPUCCH通常低于-100dBm,所以PO_RPUCCH的取值范围应该保持足够的扩展。
作为一个实施方式,所述根据重复传输的PUCCH数据的功率控制参数确定重复传输的PUCCH数据的实际发射功率,包括:
根据重复传输的PUCCH数据的路损补偿因子αRPUCCH、以及以下等式,
确定重复传输的PUCCH数据的实际发射功率:
PT,RPUCCH=min{PMAX,PO_PUCCH+PLDL'+ΔFormat+δPUCCH}
PLDL'=αRPUCCH·PLDL,
其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示一次传输的PUCCH数据的期望的接收功率,PLDL表示下行路损估计,αRPUCCH表示重复传输的PUCCH数据的路损补偿因子,ΔFormat表示与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述根据重复传输的PUCCH数据的功率控制参数确定重复传输的PUCCH数据的实际发射功率,包括:
根据重复传输的PUCCH数据的期望的接收功率PO_RPUCCH、重复传输的PUCCH数据的路损补偿因子αRPUCCH、以及以下等式确定重复传输的PUCCH数据的实际发射功率:
PT,RPUCCH=min{PMAX,PO_RPUCCH+PLDL'+ΔFormat+δPUCCH}
PLDL'=αRPUCCH·PLDL,
其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示重复传输的PUCCH数据的期望的接收功率,PLDL表示下行路损估计,αRPUCCH表示重复传输的PUCCH数据的路损补偿因子,ΔFormat表示与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述根据重复传输的PUCCH数据的功率控制参数确定重复传输的PUCCH数据的实际发射功率,包括:
根据重复传输的PUCCH数据的第一功率偏置参数PRPUCCH_OFFSET_1、以及以下等式,确定重复传输的PUCCH数据的实际发射功率:
PT,RPUCCH=min{PMAX,P'+PRPUCCH_OFFSET_1}
P'=PO_PUCCH+PLDL+ΔFormat+δPUCCH,
其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示一次传输的PUCCH数据的期望的接收功率,PLDL表示下行路损估计,ΔFormat是与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述根据重复传输的PUCCH数据的功率控制参数确定重复传输的PUCCH数据的实际发射功率,包括:
根据重复传输的PUCCH数据的第二功率偏置参数PRPUCCH_OFFSET_2以及以下等式,确定重复传输的PUCCH数据的实际发射功率:
PT,RPUCCH=P'+PRPUCCH_OFFSET_2
P'=min{PMAX,PO_PUCCH+PLDL+ΔFormat+δPUCCH},
或者根据以下等式,确定重复传输的PUCCH数据的实际发射功率:
PT,RPUCCH=PMAX+PRPUCCH_OFFSET_2,
其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示一次传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,ΔFormat是与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。
对于以下公式,
PT,RPUCCH=P'+PRPUCCH_OFFSET_2
P'=min{PMAX,PO_PUCCH+PLDL+ΔFormat+δPUCCH},
由于其中的P'可以被视为一次传输的PUCCH数据的发射功率,再进一步考虑到在MTC覆盖增强场景下的极端大的路损PLDL将导致P'始终等
于最大的发射功率PMAX,所以以上等式等价于:
PT,RPUCCH=PMAX+PRPUCCH_OFFSET_2。
考虑到重复传输的PUCCH数据的实际发射功率PT,RPUCCH与最大的用户设备发射功率PMAX通常差异不大,所以为节省下行的控制开销,所述第二功率偏置参数PRPUCCH_OFFSET_2的取值不需要支持足够大的扩展。
由于在MTC覆盖增强场景下的极端大的下行路损PLDL以及现有闭环功率控制命令字段所对应的具体取值δPUCCH具有非常低的扩展,所以δPUCCH的大小不会对上述的P’始终等于最大功率PMAX产生影响,也就是说,现有闭环功率控制命令在这种情况下将失去意义;因此,对于MTC覆盖增强场景下的用户设备,现有闭环功率控制命令字段可被网络重用作第二功率偏置PRPUCCH_OFFSET_2字段。
用户设备根据来自网络的重复传输的PUCCH数据的功率控制参数确定重复传输的PUCCH数据的发射功率PT,RPUCCH,这有利于网络根据对干扰和噪声以及路损的测量结果(例如在连续时间段内的持续统计和平均)及时地调整在确定的重复传输次数NPUCCH下的用户设备的发射功率,从而提升了上行功率控制的灵活性,并且有利于节电。
作为一个实施方式,所述根据重复传输的PUCCH数据的功率控制参数确定重复传输的PUCCH数据的实际发射功率,包括:
根据重复传输PUCCH数据的重复传输次数NPUCCH以及以下等式,确定重复传输的PUCCH数据的实际发射功率:
PT,RPUCCH=min{PMAX,P'-10·log10(NPUCCH)}
P'=PO_PUCCH+PLDL+ΔFormat+δPUCCH,
其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示一次传输的PUCCH数据的期望的接收功率,
PLDL表示下行路损估计,ΔFormat表示与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。用户设备根据重复传输次数NPUCCH确定重复传输的PUCCH数据的发射功率PT,RPUCCH,这简化了网络的实现复杂度并且节省了下行控制信令开销。
作为一个实施方式,当发射导频符号时,所述方法还包括:
将所述导频符号以与所述重复传输的PUCCH数据符号相同的发射功率发射,或者,将所述导频符号始终以最大功率发射;其中,所述导频符号用于估计重复传输的PUCCH数据的信道衰落情况。
作为一个实施方式,在RRC连接建立之前,所述方法还包括:
根据已有功率控制机制发射重复传输的PUCCH数据;或者,始终以最大功率发射重复传输的PUCCH数据。
需要说明的是,关于上行功率控制机制的选择,在具体实现过程中,包括以下三种方式:方式一,重复传输的PUCCH数据始终按照相关技术提供的已有(前述已作说明)的上行功率控制机制或始终以最大功率进行发送,但重复传输的PUSCH数据可以根据网络配置按照本发明实施例所述的新的上行功率控制机制进行发送,以实现针对重复的PUSCH传输的优化;方式二,重复传输的PUSCH数据始终按照已有(即相关技术提供)的上行功率控制机制或始终以最大功率进行发送,但重复传输的PUCCH数据可以根据网络配置按照本发明实施例记载的上行功率控制机制进行发送,以实现针对重复的PUCCH传输的优化;第三,重复传输的PUCCH和PUSCH数据都可以根据网络配置按照本发明实施例记载的上行功率控制机制进行发送,以实现针对重复的PUCCH和PUSCH传输的优化。
与图1所示的功率控制方法对应地,本发明实施例还记载一种功率控制方法,可以应用于MTC覆盖增强场景下的基站侧(也可以理解为网络侧),如图2所示,本发明实施例记载的功率控制方法以下步骤:
步骤201,当用户设备的PUSCH数据的重复传输次数大于KPUSCH时,通知用户设备专有的重复传输的PUSCH数据的功率控制参数。
步骤202,当用户设备的PUCCH数据的重复传输次数大于KPUCCH时,通知用户设备专有的重复传输的PUCCH数据的功率控制参数。
其中,所述KPUSCH和KPUCCH为预定义值。
步骤201和步骤202的执行循序不分先后。
作为一个实施方式,所述重复传输PUSCH数据的功率控制参数,包括:
专为重复传输PUSCH数据所设定的参数;
所述专为重复传输PUSCH数据所设定的参数包括以下至少之一:
重复传输PUSCH数据对应的期望接收功率PO_RPUSCH;重复传输PUSCH数据对应的路损补偿因子αRPUSCH;
重复传输的PUSCH数据的第一功率偏置参数PRPUSCH_OFFSET_1、和重复传输的PUSCH数据的第二功率偏置参数PRPUSCH_OFFSET_2。
作为一个实施方式,所述重复传输PUCCH数据的功率控制参数,包括:
专为重复传输PUCCH数据所设定的参数;
所述专为重复传输PUCCH数据所设定的参数包括以下至少之一:
重复传输PUCCH数据对应的期望接收功率PO_RPUCCH;重复传输PUCCH数据对应的路损补偿因子αRPUCCH;
重复传输的PUCCH数据的第一功率偏置参数PRPUCCH_OFFSET_1、和重复传输的PUSCH数据的第二功率偏置参数PRPUCCH_OFFSET_2。
本发明实施例还记载一种计算机存储介质,所述计算机存储介质中存储有计算机可执行指令,所述计算机可执行指令用于执行图1或图2所示的功率控制方法。
本发明实施例还记载一种用户设备,如图3所示,所述用户设备包括:
检测单元31和发射单元32;其中,
所述检测单元31,配置为在检测到PUSCH数据的重复传输次数大于KPUSCH时,触发所述发射单元32以小于或等于最大发射功率的功率发送重复传输的PUSCH数据;在检测到PUCCH数据的重复传输次数大于KPUCCH时,触发所述发射单元32以小于或等于最大发射功率的功率发送重复传输的PUCCH数据;其中,所述KPUSCH和KPUCCH为预定义值。
作为一个实施方式,所述用户设备还包括:
第一确定单元33,配置为根据重复传输的PUSCH数据的功率控制参数、或者重复传输的PUSCH数据的重复传输次数NPUSCH,确定重复传输的PUSCH数据的实际发射功率;
所述发射单元32,还配置为根据所述实际发射功率发射重复传输的PUSCH数据。
作为一个实施方式,所述重复传输的PUSCH数据的功率控制参数包括:
网络通知的用户设备专有的参数。
作为一个实施方式,所述用户设备专有的参数,包括:
专为重复传输PUSCH数据所设定的参数;
所述专为重复传输PUSCH数据所设定的参数包括以下至少之一:
重复传输PUSCH数据对应的期望接收功率PO_RPUSCH;重复传输PUSCH数据对应的路损补偿因子αRPUSCH;
重复传输的PUSCH数据的第一功率偏置参数PRPUSCH_OFFSET_1、和重复传输的PUSCH数据的第二功率偏置参数PRPUSCH_OFFSET_2。
作为一个实施方式,所述第一确定单元33,还配置为根据重复传输PUSCH数据的期望的接收功率PO_RPUSCH参数以及以下等式,确定重复传输的PUSCH数据的实际发射功率:
PT,RPUSCH=min{PMAX,PO_RPUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH}
其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUSCH表示重复传输的PUSCH数据的期望接收功率,PLDL表示下行路损估计,M表示一次PUSCH数据传输所占用的资源块数量,ΔMCS表示依赖于PUSCH数据的调制编码方案MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述第一确定单元33,还配置为根据重复传输PUSCH数据的路损补偿因子αRPUSCH、以及以下等式,确定重复传输的PUSCH数据的实际发射功率:
PT,RPUSCH=min{PMAX,PO_PUSCH+PLDL'+10·log10(M)+ΔMCS+δPUSCH}
PLDL'=αRPUSCH·PLDL
其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_PUSCH表示一次传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,αRPUSCH表示重复传输的PUSCH数据的路损补偿因子,M表示一次PUSCH数据传输所占用的资源块数量,ΔMCS表示依赖PUSCH数据MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述第一确定单元33,还配置为根据重复传输PUSCH数据的期望的接收功率参数PO_PUSCH和重复传输的PUSCH数据的路损补偿因子参数αRPUSCH、以及以下等式,确定重复传输的PUSCH数据的实际发射功率:
PT,RPUSCH=min{PMAX,PO_RPUSCH+PLDL'+10·log10(M)+ΔMCS+δPUSCH}
PLDL'=αRPUSCH·PLDL
其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示
最大的发射功率,PO_RPUSCH表示重复传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,αRPUSCH表示重复传输的PUSCH数据的路损补偿因子,M表示一次PUSCH数据传输所占用的资源块数,ΔMCS表示依赖于PUSCH数据的MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述第一确定单元33,还配置为根据重复传输PUSCH数据的第一功率偏置参数PRPUSCH_OFFSET_1、以及以下等式,确定重复传输PUSCH数据的实际发射功率:
PT,RPUSCH=min{PMAX,P'+PRPUSCH_OFFSET_1}
P'=PO_PUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH,
其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUSCH表示一次传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,M表示一次PUSCH数据传输所占用的资源块数,ΔMCS表示依赖PUSCH数据MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述第一确定单元33,还配置为根据重复传输PUSCH数据的第二功率偏置参数PRPUSCH_OFFSET_2、以及以下等式,确定重复传输PUSCH数据的实际发射功率:
PT,RPUSCH=P'+PRPUSCH_OFFSET_2
P'=min{PMAX,PO_PUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH};
或者,根据重复传输的PUSCH数据的第二功率偏置参数PRPUSCH_OFFSET_2、以及以下等式,确定重复传输的PUSCH数据的实际发射功率:
PT,RPUSCH=PMAX+PRPUSCH_OFFSET_2,
其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUSCH表示一次传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,PRPUSCH_OFFSET_2表示重复传输的PUSCH数据的第二功率偏置参数,M表示一次PUSCH数据传输所占用的资源块数量,ΔMCS表示依赖PUSCH数据MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述第一确定单元33,还配置为根据重复传输PUSCH数据的重复传输次数NPUSCH以及以下等式,确定重复传输的PUSCH数据的实际发射功率:
PT,RPUSCH=min{PMAX,P'-10·log10(NPUSCH)}
P'=PO_PUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH,
其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUSCH表示一次传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,M表示一次PUSCH数据传输所占用的资源块数量,ΔMCS表示依赖于PUSCH数据的MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述发射单元32,还配置为当发射导频符号时,将所述导频符号以与所述重复传输的PUSCH数据符号相同的发射功率发射,或者,将所述导频符号始终以最大功率发射。
作为一个实施方式,所述发射单元32,还配置为当RRC连接建立之前,根据已有功率控制机制发射重复传输的PUSCH数据,或者,始终以最大功率发射重复传输的PUSCH数据。
作为一个实施方式,所述第一确定单元33,还配置为根据重复传输PUCCH数据的功率控制参数确定重复传输的PUCCH数据的发射功率;或
者,根据重复传输PUCCH数据的重复传输次数NPUCCH,确定重复传输的PUCCH数据的发射功率。
作为一个实施方式,所述重复传输的PUCCH数据的功率控制参数包括网络通知的用户设备专有的参数。
作为一个实施方式,所述用户设备专有的参数,包括:
专为重复传输PUCCH数据所设定的参数;
所述专为重复传输PUCCH数据所设定的参数包括以下至少之一:
重复传输PUCCH数据对应的期望接收功率PO_RPUCCH;重复传输PUCCH数据对应的路损补偿因子αRPUCCH;
重复传输的PUCCH数据的第一功率偏置参数PRPUCCH_OFFSET_1、和重复传输的PUCCH数据的第二功率偏置参数PRPUCCH_OFFSET_2。
作为一个实施方式,所述第一确定单元33,还配置为根据重复传输PUCCH数据的期望的接收功率PO_RPUCCH参数以及以下等式,确定重复传输PUCCH数据的实际发射功率:
PT,RPUCCH=min{PMAX,PO_RPUCCH+PLDL+ΔFormat+δPUCCH},
其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示重复传输的PUCCH数据的期望的接收功率,PLDL表示下行路损估计,ΔFormat表示与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确闭环功率控制命令。
作为一个实施方式,所述第一确定单元33,还配置为根据重复传输的PUCCH数据的路损补偿因子αRPUCCH、以及以下等式,确定重复传输的PUCCH数据的实际发射功率:
PT,RPUCCH=min{PMAX,PO_PUCCH+PLDL'+ΔFormat+δPUCCH}
PLDL'=αRPUCCH·PLDL,
其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示一次传输的PUCCH数据的期望的接收功率,PLDL表示下行路损估计,αRPUCCH表示重复传输的PUCCH数据的路损补偿因子,ΔFormat表示与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述第一确定单元33,还配置为根据重复传输PUCCH数据的期望接收功率PO_RPUCCH、重复传输PUCCH数据的路损补偿因子αRPUCCH以及以下等式,确定重复传输的PUCCH数据的实际发射功率:
PT,RPUCCH=min{PMAX,PO_RPUCCH+PLDL'+ΔFormat+δPUCCH}
PLDL'=αRPUCCH·PLDL,
其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示重复传输的PUCCH数据的期望的接收功率,PLDL表示下行路损估计,αRPUCCH表示重复传输PUCCH数据的路损补偿因子,ΔFormat表示与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述第一确定单元33,还配置为根据重复传输PUCCH数据的第一功率偏置参数PRPUCCH_OFFSET_1、以及以下等式,确定重复传输PUCCH数据的实际发射功率:
PT,RPUCCH=min{PMAX,P'+PRPUCCH_OFFSET_1}
P'=PO_PUCCH+PLDL+ΔFormat+δPUCCH,
其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示一次传输的PUCCH数据的期望的接收功率,PLDL表示下行路损估计,ΔFormat是与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述第一确定单元33,还配置为根据重复传输PUCCH数据的第二功率偏置参数PRPUCCH_OFFSET_2、以及以下等式,确定重复传输的PUCCH数据的实际发射功率:
PT,RPUCCH=P'+PRPUCCH_OFFSET_2
P'=min{PMAX,PO_PUCCH+PLDL+ΔFormat+δPUCCH},
或者,根据以下等式,确定重复传输的PUCCH数据的实际发射功率:
PT,RPUCCH=PMAX+PRPUCCH_OFFSET_2,
其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示一次传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,ΔFormat是与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述第一确定单元33,还配置为根据重复传输PUCCH数据的重复传输次数NPUCCH以及以下等式,确定重复传输的PUCCH数据的实际发射功率:
PT,RPUCCH=min{PMAX,P'-10·log10(NPUCCH)}
P'=PO_PUCCH+PLDL+ΔFormat+δPUCCH,
其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示一次传输的PUCCH数据的期望的接收功率,PLDL表示下行路损估计,ΔFormat表示与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述发射单元32,还配置为当发射导频符号时,将所述导频符号以与所述重复传输的PUCCH数据符号相同的发射功率发射,或者,将所述导频符号始终以最大功率发射。
作为一个实施方式,所述发射单元32,还配置为在RRC连接建立之前,
根据已有功率控制机制发射重复传输的PUCCH数据;或者,始终以最大功率发射重复传输的PUCCH数据。
实际应用中,检测单元31、第一确定单元33可由用户设备中的中央处理器(CPU,Central Processing Unit)、数字信号处理器(DSP,Digital Signal Processor)或现场可编程门阵列(FPGA,Field Programmable Gate Array)实现;发射单元32可由用户设备中的发射机实现;
本发明实施例还记载一种基站,可以在MTC覆盖增强场景下进行功率控制,如图4所示,所述基站包括:第二确定单元41和第二发射单元42;
其中,所述第二确定单元41,配置为当用户设备PUSCH数据的重复传输次数大于KPUSCH时,确定所述用户设备专有的重复传输的PUSCH数据的功率控制参数;当所述用户设备的PUCCH数据的重复传输次数大于或KPUCCH时,确定所述用户设备专有的重复传输的PUCCH数据的功率控制参数;
所述第二发射单元42,配置为将所述功率控制参数传输给对应用户设备。
其中,所述KPUSCH和KPUCCH为预定义值。
作为一个实施方式,所述重复传输PUSCH数据的功率控制参数,包括:
专为重复传输PUSCH数据所设定的参数;
所述专为重复传输PUSCH数据所设定的参数包括以下至少之一:
重复传输PUSCH数据对应的期望接收功率PO_RPUSCH;重复传输PUSCH数据对应的路损补偿因子αRPUSCH;
重复传输的PUSCH数据的第一功率偏置参数PRPUSCH_OFFSET_1、和重复传输的PUSCH数据的第二功率偏置参数PRPUSCH_OFFSET_2。
作为一个实施方式,所述重复传输PUCCH数据的功率控制参数,包括:
专为重复传输PUCCH数据所设定的参数;
所述专为重复传输PUCCH数据所设定的参数包括以下至少之一:
PUCCH数据对应的期望接收功率PO_RPUCCH;PUCCH数据对应的路损补偿因子αRPUCCH;
重复传输的PUCCH数据的第一功率偏置参数PRPUCCH_OFFSET_1、和重复传输的PUCCH数据的第二功率偏置参数PRPUCCH_OFFSET_2。
本发明实施例还记载一种功率控制***,可以应用在MTC覆盖增强场景下,如图5所示,包括:
用户设备51,配置为当PUSCH数据的重复传输次数大于KPUSCH时,以小于或等于最大发射功率的功率发送重复传输的PUSCH数据;当PUCCH数据的重复传输次数大于KPUCCH时,以小于或等于最大发射功率的功率发送重复传输的PUCCH数据;其中,所述KPUSCH和KPUCCH为预定义值。
所述***还包括:基站52、配置为当用户设备51的PUSCH数据的重复传输次数大于KPUSCH时,通知用户设备51专有的重复传输的PUSCH数据的功率控制参数;当用户设备51的PUCCH数据的重复传输次数大于或KPUCCH时,通知用户设备51专有的重复传输的PUCCH数据的功率控制参数。
作为一个实施方式,所述用户设备51,还配置为发送重复传输PUSCH数据之前,根据重复传输PUSCH数据的功率控制参数、或者重复传输PUSCH数据的重复传输次数NPUSCH,确定重复传输的PUSCH数据的实际发射功率。
其中,所述重复传输的PUSCH数据的功率控制参数包括:
网络通知的用户设备51专有的参数;所述用户设备专有的参数包括:专为重复传输PUSCH数据所设定的参数;所述专为重复传输PUSCH数据所设定的参数包括以下至少之一:
重复传输PUSCH数据对应的期望接收功率PO_RPUSCH;重复传输PUSCH
数据对应的路损补偿因子αRPUSCH;
重复传输的PUSCH数据的第一功率偏置参数PRPUSCH_OFFSET_1、和重复传输的PUSCH数据的第二功率偏置参数PRPUSCH_OFFSET_2。
作为一个实施方式,所述用户设备51,还配置为根据重复传输的PUSCH数据的期望的接收功率PO_RPUSCH参数以及以下等式,确定重复传输的PUSCH数据的实际发射功率:
PT,RPUSCH=min{PMAX,PO_RPUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH}
其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUSCH表示重复传输的PUSCH数据的期望接收功率,PLDL表示下行路损估计,M表示一次PUSCH数据传输所占用的资源块数量,ΔMCS表示依赖于PUSCH数据的调制编码方案MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述用户设备51,还配置为根据重复传输的PUSCH数据的路损补偿因子αRPUSCH、以及以下等式,确定重复传输的PUSCH数据的实际发射功率:
PT,RPUSCH=min{PMAX,PO_PUSCH+PLDL'+10·log10(M)+ΔMCS+δPUSCH}
PLDL'=αRPUSCH·PLDL
其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_PUSCH表示一次传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,αRPUSCH表示重复传输的PUSCH数据的路损补偿因子,M表示一次PUSCH数据传输所占用的资源块数量,ΔMCS表示依赖PUSCH数据MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述用户设备51,还配置为根据重复传输的
PUSCH数据的期望的接收功率参数PO_PUSCH和重复传输的PUSCH数据的路损补偿因子参数αRPUSCH、以及以下等式,确定重复传输的PUSCH数据的实际发射功率:
PT,RPUSCH=min{PMAX,PO_RPUSCH+PLDL'+10·log10(M)+ΔMCS+δPUSCH}
PLDL'=αRPUSCH·PLDL
其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUSCH表示重复传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,αRPUSCH表示重复传输的PUSCH数据的路损补偿因子,M表示一次PUSCH数据传输所占用的资源块数,ΔMCS表示依赖于PUSCH数据的MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述用户设备51,还配置为根据重复传输的PUSCH数据的第一功率偏置参数PRPUSCH_OFFSET_1、以及以下等式,确定重复传输的PUSCH数据的实际发射功率:
PT,RPUSCH=min{PMAX,P'+PRPUSCH_OFFSET_1}
P'=PO_PUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH,
其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUSCH表示一次传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,M表示一次PUSCH数据传输所占用的资源块数,ΔMCS表示依赖PUSCH数据MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述用户设备51,还配置为根据重复传输的PUSCH数据的第二功率偏置参数PRPUSCH_OFFSET_2、以及以下等式,确定重复传输的PUSCH数据的实际发射功率:
PT,RPUSCH=P'+PRPUSCH_OFFSET_2
P'=min{PMAX,PO_PUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH};或者,
根据重复传输的PUSCH数据的第二功率偏置参数PRPUSCH_OFFSET_2、以及以下等式,确定重复传输的PUSCH数据的实际发射功率:
PT,RPUSCH=PMAX+PRPUSCH_OFFSET_2,
其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUSCH表示一次传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,PRPUSCH_OFFSET_2表示重复传输的PUSCH数据的第二功率偏置参数,M表示一次PUSCH数据传输所占用的资源块数量,ΔMCS表示依赖PUSCH数据MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
用户设备根据来自网络的重复传输的PUSCH数据的功率控制参数确定重复传输的PUSCH数据的发射功率PT,RPUSCH,这有利于网络根据对干扰和噪声以及路损的测量结果(例如在连续时间段内的持续统计和平均)及时地调整在确定的重复传输次数NPUSCH下用户设备的发射功率,从而提升了上行功率控制的灵活性,并且有利于用户设备节电。
作为一个实施方式,所述用户设备51,还配置为根据重复传输PUSCH数据的重复传输次数NPUSCH、以及以下等式,确定重复传输的PUSCH数据的实际发射功率:
PT,RPUSCH=min{PMAX,P'-10·log10(NPUSCH)}
P'=PO_PUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH,
其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUSCH表示一次传输的PUSCH数据的期望的接收功率,
PLDL表示下行路损估计,M表示一次PUSCH数据传输所占用的资源块数量,ΔMCS表示依赖于PUSCH数据的MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。用户设备根据重复传输次数NPUSCH,确定重复传输的PUSCH数据的发射功率PT,RPUSCH,这简化了网络的实现复杂度并且节省了下行控制信令开销。
作为一个实施方式,所述用户设备51,还配置为当发射导频符号时,将所述导频符号以与所述重复传输的PUSCH数据符号相同的发射功率发射,或者,将所述导频符号始终以最大功率发射。
作为一个实施方式,所述用户设备51,还配置为当RRC连接建立之前,根据已有功率控制机制发射重复传输的PUSCH数据,或者,始终以最大功率发射重复传输的PUSCH数据。
作为一个实施方式,所述用户设备51,还配置为发送重复传输PUCCH数据之前,根据重复传输的PUCCH数据的功率控制参数确定重复传输的PUCCH数据的发射功率;或者,根据重复传输PUCCH数据的重复传输次数NPUCCH,确定重复传输的PUCCH数据的发射功率。
其中,所述重复传输的PUCCH数据的功率控制参数包括网络通知的用户设备51专有的参数;所述重复传输的PUCCH数据的功率控制参数,包括:专为重复传输PUCCH数据所设定的参数;所述专为重复传输PUCCH数据所设定的参数包括以下至少之一:
重复传输PUCCH数据对应的期望接收功率PO_RPUCCH;重复传输PUCCH数据对应的路损补偿因子αRPUCCH;
重复传输的PUCCH数据的第一功率偏置参数PRPUCCH_OFFSET_1、和重复传输的PUCCH数据的第二功率偏置参数PRPUCCH_OFFSET_2。
作为一个实施方式,所述用户设备51,还配置为根据重复传输的PUCCH数据的期望的接收功率PO_RPUCCH参数以及以下等式,确定重复传输
的PUCCH数据的实际发射功率:
PT,RPUCCH=min{PMAX,PO_RPUCCH+PLDL+ΔFormat+δPUCCH},
其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示重复传输的PUCCH数据的期望的接收功率,PLDL表示下行路损估计,ΔFormat表示与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确闭环功率控制命令。
作为一个实施方式,所述用户设备51,还配置为根据重复传输的PUCCH数据的路损补偿因子αRPUCCH、以及以下等式,确定重复传输的PUCCH数据的实际发射功率:
PT,RPUCCH=min{PMAX,PO_PUCCH+PLDL'+ΔFormat+δPUCCH}
PLDL'=αRPUCCH·PLDL,
其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示一次传输的PUCCH数据的期望的接收功率,PLDL表示下行路损估计,αRPUCCH表示重复传输的PUCCH数据的路损补偿因子,ΔFormat表示与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述用户设备51,还配置为根据重复传输PUCCH数据的期望的接收功率PO_RPUCCH、重复传输的PUCCH数据的路损补偿因子αRPUCCH以及以下等式确定重复传输的PUCCH数据的实际发射功率:
PT,RPUCCH=min{PMAX,PO_RPUCCH+PLDL'+ΔFormat+δPUCCH}
PLDL'=αRPUCCH·PLDL,
其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示重复传输的PUCCH数据的期望的接收功率,
PLDL表示下行路损估计,αRPUCCH表示重复传输的PUCCH数据的路损补偿因子,ΔFormat表示与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述用户设备51,还配置为根据重复传输的PUCCH数据的第一功率偏置参数PRPUCCH_OFFSET_1、以及以下等式,确定重复传输的PUCCH数据的实际发射功率:
PT,RPUCCH=min{PMAX,P'+PRPUCCH_OFFSET_1}
P'=PO_PUCCH+PLDL+ΔFormat+δPUCCH,
其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示一次传输的PUCCH数据的期望的接收功率,PLDL表示下行路损估计,ΔFormat是与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。
作为一个实施方式,所述用户设备51,还配置为根据重复传输PUCCH数据的第二功率偏置参数PRPUCCH_OFFSET_2以及以下等式,确定重复传输的PUCCH数据的实际发射功率:
PT,RPUCCH=P'+PRPUCCH_OFFSET_2
P'=min{PMAX,PO_PUCCH+PLDL+ΔFormat+δPUCCH},
或者根据以下等式,确定重复传输的PUCCH数据的实际发射功率:
PT,RPUCCH=PMAX+PRPUCCH_OFFSET_2,
其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示一次传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,ΔFormat是与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。
用户设备根据来自网络的重复传输的PUCCH数据的功率控制参数确
定重复传输的PUCCH数据的发射功率PT,RPUCCH,这有利于网络根据对干扰和噪声以及路损的测量结果(例如在连续时间段内的持续统计和平均)及时地调整在确定的重复传输次数NPUCCH下的用户设备的发射功率,从而提升了上行功率控制的灵活性,并且有利于节电。
作为一个实施方式,所述用户设备51,还配置为根据重复传输PUCCH数据的重复传输次数NPUCCH以及以下等式,确定重复传输的PUCCH数据的实际发射功率:
PT,RPUCCH=min{PMAX,P'-10·log10(NPUCCH)}
P'=PO_PUCCH+PLDL+ΔFormat+δPUCCH,
其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示一次传输的PUCCH数据的期望的接收功率,PLDL表示下行路损估计,ΔFormat表示与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。用户设备根据重复传输次数NPUCCH确定重复传输的PUCCH数据的发射功率PT,RPUCCH,这简化了网络的实现复杂度并且节省了下行控制信令开销。
作为一个实施方式,所述用户设备51,还配置为发射导频符号时,将所述导频符号以与所述重复传输的PUCCH数据符号相同的发射功率发射,或者,将所述导频符号始终以最大功率发射。
作为一个实施方式,所述用户设备51,还配置为在RRC连接建立之前,根据已有功率控制机制发射重复传输的PUCCH数据;或者,始终以最大功率发射重复传输的PUCCH数据。
需要说明的是,关于上行功率控制机制的选择,在具体实现过程中,包括以下三种方式:第一,重复传输的PUCCH数据始终按照现有的上行功率控制机制或始终以最大功率PMAX进行发送,但重复传输的PUSCH数据可以根据网络配置按照本发明实施例所述的新的上行功率控制机制进行发
送以实现针对重复的PUSCH传输的优化;第二,重复传输的PUSCH数据始终按照现有的上行功率控制机制或始终以最大功率PMAX进行发送,但重复传输的PUCCH数据可以根据网络配置按照本发明实施例所述的新的上行功率控制机制进行发送以实现针对重复的PUCCH传输的优化;第三,重复传输的PUCCH或PUSCH数据都可以根据网络配置按照本发明实施例所述的新的上行功率控制机制进行发送以实现针对重复的PUCCH或PUSCH传输的优化。
下面再结合具体实施例进行说明。
具体实施例一
网络(对应基站)确定噪声的功率级别和来自相邻小区的干扰的功率级别,并且根据以下至少之一确定上行的路损:来自用户设备的上行探测参考信号(SRS,Sounding Reference Signal);随机接入(RA,Random Access)信号;来自用户设备的关于下行路损测量值的反馈。网络根据所述的噪声和干扰的功率级别以及上行路损确定重复传输的PUSCH数据的重复传输次数NPUSCH、以及相应的重复传输的PUSCH数据的期望的接收功率PO_RPUSCH,并将重复传输的PUSCH数据的重复传输次数NPUSCH和期望的接收功率PO_RPUSCH通知给用户设备。或者,网络和用户设备根据来自用户设备的重复传输的上行RA信号的重复传输次数NRA确定重复传输的PUSCH数据的重复传输次数NPUSCH,网络根据所述的噪声和干扰的功率级别以及上行路损确定重复传输的PUSCH数据的期望的接收功率PO_RPUSCH,并将期望的接收功率PO_RPUSCH通知给用户设备。
在实现过程中,网络根据噪声和干扰的功率级别以及上行路损确定重复传输次数NPUSCH以及相应的期望的接收功率PO_RPUSCH包括:
根据干扰和噪声的功率级别以及上行路损确定一次传输的PUSCH数据所期望的发射功率PA;根据所述期望的发射功率PA以及用户设备的最大
发射功率PMAX确定重复传输的PUSCH数据的第一重复传输次数RA;其中,RA为用户设备始终以最大功率PMAX发射情况下用户设备所需要的重复传输次数;根据所述RA以及用户设备支持的重复传输次数集合,确定重复传输的PUSCH数据的第二重复传输次数RB;其中,所述RB为属于用户设备支持的重复传输次数集合的大于等于RA的所有元素中的最小值;所述第二重复传输次数RB等于实际的重复传输的PUSCH数据的重复传输次数NPUSCH。根据RB和一次传输的期望的发射功率PA确定重复传输RB次的PUSCH数据的期望的发射功率PB;根据所述PA与PB之间的功率差(单位是dB),以及一次传输的期望的接收功率PO_PUSCH确定重复传输的期望的接收功率PO_RPUSCH。
本实施例中,设想PUSCH的重复传输次数NPUSCH大于预定义值KPUSCH;设想用户设备最大发射功率PMAX取值为23dBm,重复传输的PUSCH数据期望的接收功率PO_RPUSCH取值为-120dBm,明确闭环功率控制命令δPUSCH取值为0dB,用户设备估计的下行路损PLDL取值大概为130dB;设想一次PUSCH数据传输所占用的资源块数M取值为5个;设想每个资源块在频域上占据连续的12个子载波,在时域上占据连续的14个正交频分复用(OFDM,Orthogonal Frequency Division Multiplexing)符号,所以每个资源块包括168(=12×14)个资源单元(RE,Resource Element);另外,由于所述14个OFDM符号中的2个用于承载导频,剩余的12个OFDM符号用于承载PUSCH数据,所以每个资源块包括144(=12×12)个用于承载PUSCH数据的资源单元;
进一步设想用户设备是根据以下等式,获取依赖于PUSCH数据所用MCS的功率偏置ΔMCS取值:
其中,K表示传输块大小(TBS,Transport Block Size),NRE表示上述M个资源块中承载PUSCH数据的资源单元数,L表示每一个资源单元承载的有效信息比特数。如果设想K的取值为1000,则用户设备能够通过以下过程,确定ΔMCS的取值大概为3.7dB:
ΔMCS=10·log10(21.25·L-1)=10·log10(21.25×1.4-1)=3.7(dB)。
最后,用户设备根据以下等式,
PT,RPUSCH=min{PMAX,PO_RPUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH},
确定重复传输的PUSCH数据的实际发射功率PT,RPUSCH为:
min{23,-120+130+10·log10(5)+3.7+0}=20.7(dBm)。
此时,重复传输的PUSCH数据的实际发射功率PT,RPUSCH低于用户设备所支持的最大发射功率PMAX。
具体实施例二
网络(基站侧)确定噪声的功率级别和来自相邻小区的干扰的功率级别,并且根据以下至少之一确定上行的路损:来自用户设备的SRS;来自用户设备的RA信号;来自用户设备的关于下行路损测量值的反馈。网络根据所述的噪声和干扰的功率级别以及上行路损确定重复传输的PUSCH数据的重复传输次数NPUSCH,以及相应的重复传输的PUSCH数据的路损补偿因子αRPUSCH并将重复传输的PUSCH数据的重复传输次数NPUSCH和路损补偿因子αRPUSCH通知给用户设备。或者,网络和用户设备根据来自用户设备的重复传输的RA信号的重复传输次数NRA确定重复传输的PUSCH数据的重复传输次数NPUSCH,网络根据所述的噪声和干扰的功率级别以及上行路损确定重复传输的PUSCH数据的路损补偿因子αRPUSCH,并将上述路损
补偿因子αRPUSCH通知给用户设备。
在实现过程中,网络根据噪声和干扰的功率级别以及上行路损确定重复传输次数NPUSCH以及相应的路损补偿因子αRPUSCH包括:
根据干扰和噪声的功率级别以及上行路损确定一次传输的PUSCH数据所期望的发射功率PA;根据所述期望的发射功率PA以及用户设备的最大发射功率PMAX确定重复传输的PUSCH数据的第一重复传输次数RA;其中,RA为用户设备始终以最大功率PMAX发射情况下用户设备所需要的重复传输次数;根据所述RA以及用户设备支持的重复传输次数集合确定重复传输的PUSCH数据的第二重复传输次数RB;其中,所述RB为属于用户设备支持的重复传输次数集合的大于等于RA的所有元素中的最小值;所述第二重复传输次数RB等于实际的重复传输的PUSCH数据的重复传输次数NPUSCH。根据RB和一次传输的期望的发射功率PA确定重复传输RB次的PUSCH数据的期望的发射功率PB;根据所述PA与PB之间的功率差(单位是dB),以及上行路损确定重复传输的PUSCH数据的路损补偿因子αRPUSCH。
本实施例中,设想PUSCH的重复传输次数NPUSCH大于预定义值KPUSCH;设想用户设备最大发射功率PMAX取值为23dBm,一次传输的PUSCH数据期望的接收功率PO_PUSCH取值为-100dBm,明确闭环功率控制命令δPUSCH取值为0dB,用户设备估计的下行路损PLDL取值大概为138dB,重复传输PUSCH数据的路损补偿因子αRPUSCH取值为0.8;设想一次PUSCH数据传输所占用的资源块数M取值为5个;设想每个资源块频域上占据连续12个子载波,时域上占据连续14个OFDM符号,所以每个资源块包括168(=12×14)个资源单元;另外,由于所述14个OFDM符号中的2个用于承载导频,剩余OFDM符号用于承载PUSCH数据,所以每个资源块包括144(=12×12)个用于承载PUSCH数据的资源单元;
进一步设想用户设备是根据以下等式,获取依赖于PUSCH数据所用MCS的功率偏置ΔMCS取值:
其中,K表示TBS,NRE表示M个资源块中承载PUSCH数据的资源单元数,L表示每个资源单元承载的有效信息比特数。设想K的取值为1000,则用户设备能够通过以下过程,确定ΔMCS的取值大概为3.7dB:
ΔMCS=10·log10(21.25·L-1)=10·log10(21.25×1.4-1)=3.7(dB)。
最后,用户设备根据以下等式,
PT,RPUSCH=min{PMAX,PO_PUSCH+PLDL'+10·log10(M)+ΔMCS+δPUSCH}
PLDL'=αRPUSCH·PLDL,
确定重复传输的PUSCH数据的实际发射功率PT,RPUSCH为:
min{23,-100+0.8×138+10·log10(5)+3.7+0}=21.1(dBm)。
此时,重复传输的PUSCH数据的实际发射功率PT,RPUSCH低于用户设备所支持的最大发射功率PMAX。
具体实施例三
网络确定噪声的功率级别和来自相邻小区的干扰的功率级别,并且根据以下至少之一确定上行的路损:来自用户设备的SRS;来自用户设备的RA信号;来自用户设备的关于下行路损测量值的反馈。网络根据所述的噪声和干扰的功率级别以及上行路损确定重复传输的PUSCH数据的重复传输次数NPUSCH,以及相应的重复传输的PUSCH数据的期望的接收功率PO_RPUSCH和路损补偿因子αRPUSCH,并将重复传输的PUSCH数据的重复传
输次数NPUSCH以及期望的接收功率PO_RPUSCH和路损补偿因子αRPUSCH通知给用户设备。或者,网络和用户设备根据来自用户设备的重复传输的RA信号的重复传输次数NRA确定重复传输的PUSCH数据的重复传输次数NPUSCH,网络根据所述的噪声和干扰的功率级别以及上行路损确定重复传输的PUSCH数据的期望的接收功率PO_RPUSCH和路损补偿因子αRPUSCH,并将上述期望接收功率PO_RPUSCH和路损补偿因子αRPUSCH通知给用户设备。
在实现过程中,网络根据噪声和干扰的功率级别以及上行路损确定重复传输的PUSCH数据的重复传输次数NPUSCH以及期望的接收功率PO_RPUSCH和路损补偿因子αRPUSCH包括:
根据干扰和噪声的功率级别以及上行路损确定一次传输的PUSCH数据所期望的发射功率PA;根据所述期望的发射功率PA以及用户设备的最大发射功率PMAX确定重复传输的PUSCH数据的第一重复传输次数RA;其中,RA为用户设备始终以最大功率PMAX发射情况下用户设备所需要的重复传输次数;根据所述RA以及用户设备支持的重复传输次数集合确定重复传输的PUSCH数据的第二重复传输次数RB;其中,所述RB为属于用户设备支持的重复传输次数集合的大于等于RA的所有元素中的最小值;所述第二重复传输次数RB等于实际的重复传输的PUSCH数据的重复传输次数NPUSCH。根据RB和一次传输的期望的发射功率PA确定重复传输RB次的PUSCH数据的期望的发射功率PB;根据所述PA与PB之间的功率差(单位是dB),以及上行路损确定重复传输的PUSCH数据的期望的接收功率PO_RPUSCH和路损补偿因子αRPUSCH。
本实施例中,设想PUSCH的重复传输次数NPUSCH大于预定义值KPUSCH;设想用户设备最大发射功率PMAX取值为23dBm,重复传输的PUSCH数据期望的接收功率PO_RPUSCH取值为-113dBm,明确闭环功率控制命令δPUSCH取值为0dB,用户设备估计的下行路损PLDL取值大概为138dB,重复传输
PUSCH数据的路损补偿因子αRPUSCH取值为0.9;设想一次PUSCH数据传输所占用的资源块数M取值为5个;设想每个资源块频域上占据连续12个子载波,时域上占据连续14个OFDM符号,所以每个资源块包括168(=12×14)个资源单元;另外,由于所述14个OFDM符号中的2个用于承载导频,剩余OFDM符号用于承载PUSCH数据,所以每个资源块包括144(=12×12)个用于承载PUSCH数据的资源单元;
进一步设想用户设备是根据以下等式,获取依赖于PUSCH数据所用MCS的功率偏置ΔMCS取值:
其中,K表示TBS,NRE表示M个资源块中承载PUSCH数据的资源单元数,L表示每个资源单元承载的有效信息比特数。设想K的取值为1000,则用户设备能够通过以下过程,确定ΔMCS的取值大概为3.7dB:
ΔMCS=10·log10(21.25·L-1)=10·log10(21.25×1.4-1)=3.7(dB)。
最后,用户设备根据以下等式,
PT,RPUSCH=min{PMAX,PO_RPUSCH+PLDL'+10·log10(M)+ΔMCS+δPUSCH}
PLDL'=αRPUSCH·PLDL,
确定重复传输的PUSCH数据的实际发射功率PT,RPUSCH为:
min{23,-113+0.9×138+10·log10(5)+3.7+0}=21.9(dBm)。
此时,重复传输的PUSCH数据的实际发射功率PT,RPUSCH低于用户设备所支持的最大发射功率PMAX。
具体实施例四
网络(基站侧)确定噪声的功率级别和来自相邻小区的干扰的功率级别,并且根据以下至少之一确定上行的路损:来自用户设备的SRS;来自用户设备的RA信号;来自用户设备的关于下行路损测量值的反馈。网络根据所述的噪声和干扰的功率级别以及上行路损确定重复传输的PUSCH数据的重复传输次数NPUSCH,以及相应的重复传输的PUSCH数据的第一功率偏置PRPUSCH_OFFSET_1,并将重复传输的PUSCH数据的重复传输次数NPUSCH和第一功率偏置PRPUSCH_OFFSET_1通知给用户设备。或者,网络和用户设备根据来自用户设备的重复传输的上行RA信号的重复传输次数NRA确定重复传输PUSCH数据的重复传输次数NPUSCH,网络根据所述的噪声和干扰的功率级别以及上行路损确定重复PUSCH数据功率偏置PRPUSCH_OFFSET_1并将上述第一功率偏置PRPUSCH_OFFSET_1通知给用户设备。
在实现过程中,网络根据噪声和干扰的功率级别以及上行路损确定重复传输次数NPUSCH以及相应的第一功率偏置PRPUSCH_OFFSET_1包括:
根据干扰和噪声的功率级别以及上行路损确定一次传输的PUSCH数据所期望的发射功率PA;根据所述期望的发射功率PA以及用户设备的最大发射功率PMAX确定重复传输的PUSCH数据的第一重复传输次数RA;其中,RA为用户设备始终以最大功率PMAX发射情况下用户设备所需要的重复传输次数;根据所述RA以及用户设备支持的重复传输次数集合确定重复传输的PUSCH数据的第二重复传输次数RB;其中,所述RB为属于用户设备支持的重复传输次数集合的大于等于RA的所有元素中的最小值;所述第二重复传输次数RB等于实际的重复传输的PUSCH数据的重复传输次数NPUSCH。根据RB和一次传输的期望的发射功率PA确定重复传输RB次的PUSCH数据的期望的发射功率PB;根据所述PA与PB之间的功率差(单位是dB)确定重复传输的PUSCH数据的第一功率偏置PRPUSCH_OFFSET_1。
本实施例中,设想PUSCH的重复传输次数NPUSCH大于预定义值KPUSCH;
设想用户设备最大发射功率PMAX取值为23dBm,一次传输的PUSCH数据期望的接收功率PO_RPUSCH取值为-100dBm,明确闭环功率控制命令δPUSCH取值为0dB,用户设备估计的下行路损PLDL取值大概为130dB,重复传输PUSCH数据的第一功率偏置PRPUSCH_OFFSET_1取值为-20dB;设想一次PUSCH数据传输所占用的资源块数M取值为5个;设想每个资源块在频域上占据连续的12个子载波,在时域上占据连续的14个OFDM符号,所以每个资源块包括168(=12×14)个资源单元;另外,由于所述14个OFDM符号中的2个用于承载导频,剩余的OFDM符号用于承载PUSCH数据,所以每个资源块包括144(=12×12)个用于承载PUSCH数据的资源单元;
进一步设想用户设备是根据以下等式,获取依赖于PUSCH数据所用MCS的功率偏置ΔMCS取值:
其中,K表示TBS,NRE表示M个资源块中承载PUSCH数据的资源单元数,L表示每一个资源单元承载的有效信息比特数。设想K的取值为1000则用户设备能够通过以下过程,确定ΔMCS的取值大概为3.7dB:
ΔMCS=10·log10(21.25·L-1)=10·log10(21.25×1.4-1)=3.7(dB)。
最后,用户设备根据以下等式,
PT,RPUSCH=min{PMAX,P'+PRPUSCH_OFFSET_1}
P'=PO_PUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH,
确定重复传输的PUSCH数据的实际发射功率PT,RPUSCH为:
min{23,-100+130+10·log10(5)+3.7+0-20}=20.7(dBm)。
此时,重复传输的PUSCH数据的实际发射功率PT,RPUSCH低于用户设备
所支持的最大发射功率PMAX。
具体实施例五
网络(基站侧)确定噪声的功率级别和来自相邻小区的干扰的功率级别,并且根据以下至少之一确定上行的路损:来自用户设备的SRS;来自用户设备的RA信号;来自用户设备的关于下行路损测量值的反馈。网络根据所述的噪声和干扰的功率级别以及上行路损确定重复传输的PUSCH数据的重复传输次数NPUSCH,以及相应的重复传输的PUSCH数据的第二功率偏置PRPUSCH_OFFSET_2,并将重复传输的PUSCH数据的重复传输次数NPUSCH和第二功率偏置PRPUSCH_OFFSET_2通知给用户设备。或者,网络和用户设备根据来自用户设备的重复传输的上行RA信号的重复传输次数NRA确定重复传输PUSCH数据的重复传输次数NPUSCH,网络根据所述的噪声和干扰的功率级别以及上行路损确定重复PUSCH数据功率偏置PRPUSCH_OFFSET_2并将上述第二功率偏置PRPUSCH_OFFSET_2通知给用户设备。
在实现过程中,网络根据噪声和干扰的功率级别以及上行路损确定重复传输次数NPUSCH以及相应的第二功率偏置PRPUSCH_OFFSET_2包括:
根据干扰和噪声的功率级别以及上行路损确定一次传输的PUSCH数据所期望的发射功率PA;根据所述期望的发射功率PA以及用户设备的最大发射功率PMAX确定重复传输的PUSCH数据的第一重复传输次数RA;其中,RA为用户设备始终以最大功率PMAX发射情况下用户设备所需要的重复传输次数;根据所述RA以及用户设备支持的重复传输次数集合确定重复传输的PUSCH数据的第二重复传输次数RB;其中,所述RB为属于用户设备支持的重复传输次数集合的大于等于RA的所有元素中的最小值;所述第二重复传输次数RB等于实际的重复传输的PUSCH数据的重复传输次数NPUSCH。根据RB和一次传输的期望的发射功率PA确定重复传输RB次的PUSCH数据的期望的发射功率PB;根据所述PB与用户设备的最大发射功
率PMAX确定重复传输的PUSCH数据的第二功率偏置PRPUSCH_OFFSET_2。
设想PUSCH的重复传输次数NPUSCH大于预定义值KPUSCH;设想用户设备最大发射功率PMAX取值为23dBm,一次传输的PUSCH数据期望的接收功率PO_RPUSCH取值为-100dBm,明确闭环功率控制命令δPUSCH取值为0dB,用户设备估计的下行路损PLDL取值大概为130dB,重复传输PUSCH数据的第二功率偏置PRPUSCH_OFFSET_2取值为-2dB;设想一次PUSCH数据传输所占用的资源块数M取值为5个;设想每个资源块在频域上占据连续的12个子载波,在时域上占据连续的14个OFDM符号,所以每个资源块包括168(=12×14)个资源单元;另外,由于所述14个OFDM符号中的2个用于承载导频,剩余的OFDM符号用于承载PUSCH数据,所以每个资源块包括144(=12×12)个用于承载PUSCH数据的资源单元;
进一步设想用户设备是根据以下等式,获取依赖于PUSCH数据所用MCS的功率偏置ΔMCS取值:
其中,K表示TBS,NRE表示M个资源块中承载PUSCH数据的资源单元数,L表示每一个资源单元承载的有效信息比特数。设想K的取值为1000则用户设备能够通过以下过程,确定ΔMCS的取值大概为3.7dB:
ΔMCS=10·log10(21.25·L-1)=10·log10(21.25×1.4-1)=3.7(dB)。
最后,用户设备根据以下等式,
PT,RPUSCH=P'+PRPUSCH_OFFSET_2
P'=min{PMAX,PO_PUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH},
或者,
PT,RPUSCH=PMAX+PRPUSCH_OFFSET_2,
确定重复传输的PUSCH数据的实际发射功率PT,RPUSCH为:
min{23,-100+130+10·log10(5)+3.7+0}-2=21(dBm),
或者,
23-2=21(dBm)。
此时,重复传输的PUSCH数据的实际发射功率PT,RPUSCH低于用户设备所支持的最大发射功率PMAX。
具体实施例六
网络(基站侧)确定噪声的功率级别和来自相邻小区的干扰的功率级别,并且根据以下至少之一确定上行的路损:来自用户设备的SRS;来自用户设备的RA信号;来自用户设备的关于下行路损测量值的反馈。网络根据所述的噪声和干扰的功率级别以及上行路损确定重复传输的PUSCH数据的重复传输次数NPUSCH,并通知给用户设备。或者,网络和用户设备根据来自用户设备的重复传输的上行RA信号的重复传输次数NRA确定重复传输的PUSCH数据的重复传输次数NPUSCH。
在实现过程中,网络根据噪声和干扰的功率级别以及上行路损确定重复传输的PUSCH数据的重复传输次数NPUSCH包括:
根据干扰和噪声的功率级别以及上行路损确定一次传输的PUSCH数据所期望的发射功率PA;根据所述期望的发射功率PA以及用户设备的最大发射功率PMAX确定重复传输的PUSCH数据的第一重复传输次数RA;其中,RA为用户设备始终以最大功率PMAX发射情况下用户设备所需要的重复传输次数;根据所述RA以及用户设备支持的重复传输次数集合确定重复传输的PUSCH数据的第二重复传输次数RB;其中,所述RB为属于用户设备支持的重复传输次数集合的大于等于RA的所有元素中的最小值;所述第二重
复传输次数RB等于实际的重复传输的PUSCH数据的重复传输次数NPUSCH。
本实施例中,设想PUSCH的重复传输次数NPUSCH大于预定义值KPUSCH;设想用户设备最大发射功率PMAX取值为23dBm,一次传输的PUSCH数据期望的接收功率PO_PUSCH取值为-100dBm,明确闭环功率控制命令δPUSCH取值为0dB,用户设备估计的下行路损PLDL取值大概为130dB,重复传输PUSCH数据的重复传输次数NPUSCH取值为100次;设想一次PUSCH数据传输所占用的资源块数M取值为5个;设想每个资源块频域上占据连续的12个子载波,时域上占据连续14个OFDM符号,所以每个资源块包括168(=12×14)个资源单元;另外,由于所述14个OFDM符号中的2个用于承载导频,剩余的12个OFDM符号用于承载PUSCH数据,所以每个资源块包括144(=12×12)个用于承载PUSCH数据的资源单元;
进一步设想用户设备是根据以下等式,获取依赖于PUSCH数据所用MCS的功率偏置ΔMCS取值:
其中,K表示TBS,NRE表示M个资源块中承载PUSCH数据的资源单元数,L表示每一个资源单元承载的有效信息比特数。设想K的取值为1000则用户设备能够通过以下过程,确定ΔMCS的取值大概为3.7dB:
ΔMCS=10·log10(21.25·L-1)=10·log10(21.25×1.4-1)=3.7(dB)。
最后,用户设备根据以下等式,
PT,RPUSCH=min{PMAX,P'-10·log10(NPUSCH)}
P'=PO_PUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH,
确定重复传输的PUSCH数据的实际发射功率PT,RPUSCH为:
P'=-100+130+10·log10(5)+3.7+0=40.7(dBm)
min{23,P'-10·log10(100)}=20.7(dBm)。
此时,重复传输的PUSCH数据的实际发射功率PT,RPUSCH低于用户设备所支持的最大发射功率PMAX。
需要指出的是:本发明具体实施例一至具体实施例六中所述干扰和噪声的功率级别是指一次传输过程的平均的干扰和噪声的功率级别;考虑到在对重复传输的PUSCH数据的合并接收过程中,干扰和噪声也将被合并,并且经过合并的干扰和噪声的功率级别与一次传输过程的干扰和噪声的功率级别之间可能存在偏差,闭环功率控制命令除用于补偿无线信道的快衰落以外,还能用于补偿上述经过合并的干扰和噪声的功率级别与一次传输过程的干扰和噪声的功率级别之间的偏差,或者,在确定重复传输次数NPUSCH或确定重复传输的功率控制参数(包括期望的接收功率PO_RPUSCH、路损补偿因子αRPUSCH、第一功率偏置PRPUSCH_OFFSET_1和第二功率偏置PRPUSCH_OFFSET_2)的过程中,上述偏差的影响能够直接被考虑(即直接引入相应补偿项)。
具体实施例七
网络(基站侧)确定噪声的功率级别和来自相邻小区的干扰的功率级别,并且根据以下至少之一确定上行的路损:来自用户设备的SRS;来自用户设备的RA信号;来自用户设备的关于下行路损测量值的反馈。网络根据所述的噪声和干扰的功率级别以及上行路损确定重复传输PUCCH数据的重复传输次数NPUCCH以及相应重复传输的PUCCH数据的期望的接收功率PO_RPUCCH,并将重复传输的PUCCH数据的重复传输次数NPUCCH和期望的接收功率PO_RPUCCH通知给用户设备。或者,网络和用户设备根据来自
用户设备的重复传输的上行RA信号的重复传输次数NRA确定重复传输的PUCCH数据的重复传输次数NPUCCH,网络根据所述的噪声和干扰的功率级别以及上行路损确定重复传输的PUCCH数据的期望的接收功率PO_RPUCCH并将期望的接收功率PO_RPUCCH通知给用户设备。
在实现过程中,网络根据噪声和干扰的功率级别以及上行路损确定重复传输次数NPUCCH以及相应的期望的接收功率PO_RPUCCH包括:
根据干扰和噪声的功率级别以及上行路损确定一次传输的PUCCH数据所期望的发射功率PA;根据所述期望的发射功率PA以及用户设备的最大发射功率PMAX确定重复传输的PUCCH数据的第一重复传输次数RA;其中,RA为用户设备始终以最大功率PMAX发射情况下用户设备所需要的重复传输次数;根据所述RA以及用户设备支持的重复传输次数集合确定重复传输的PUCCH数据的第二重复传输次数RB;其中,所述RB为属于用户设备支持的重复传输次数集合的大于等于RA的所有元素中的最小值;所述第二重复传输次数RB等于实际的重复传输的PUCCH数据的重复传输次数NPUCCH。根据RB和一次传输的期望的发射功率PA确定重复传输RB次的PUCCH数据的期望的发射功率PB;根据所述PA与PB之间的功率差(单位是dB),以及一次传输的期望的接收功率PO_PUCCH确定重复传输的期望的接收功率PO_RPUCCH。
本实施例中,设想PUCCH的重复传输次数NPUCCH大于预定义值KPUCCH;设想用户设备最大发射功率PMAX取值为23dBm,重复传输的PUCCH数据期望的接收功率PO_RPUCCH取值为-120dBm,明确闭环功率控制命令δPUCCH取值为0dB,用户设备估计的下行路损PLDL取值大概为142dB;设想PUCCH格式为PUCCH格式1a,并且格式1a的功率偏置ΔMCS取值为0dB。
最终,用户设备根据以下等式,
PT,RPUCCH=min{PMAX,PO_RPUCCH+PLDL+ΔFormat+δPUCCH},
确定重复传输的PUCCH数据的实际发射功率PT,RPUCCH为:
min{23,-120+142+0+0}=22(dBm)。
此时,重复传输的PUCCH数据的实际发射功率PT,RPUCCH低于用户设备所支持的最大发射功率PMAX。
具体实施例八
网络(基站侧)确定噪声的功率级别和来自相邻小区的干扰的功率级别,并且根据以下至少之一确定上行的路损:来自用户设备的SRS;来自用户设备的RA信号;来自用户设备的关于下行路损测量值的反馈。网络根据所述的噪声和干扰的功率级别以及上行路损确定重复传输的PUCCH数据的重复传输次数NPUCCH,以及相应的重复传输的PUCCH数据的路损补偿因子αRPUCCH,并将重复传输的PUCCH数据的重复传输次数NPUCCH和路损补偿因子αRPUCCH通知给用户设备。或者,网络和用户设备根据来自用户设备的重复传输的上行RA信号的重复传输次数NRA确定重复传输的PUCCH数据的重复传输次数NPUCCH,网络根据所述的噪声和干扰的功率级别以及上行路损确定重复传输的PUCCH数据的路损补偿因子αRPUCCH,并将上述路损补偿因子αRPUCCH通知给用户设备。
在实现过程中,网络根据噪声和干扰的功率级别以及上行路损确定重复传输次数NPUCCH以及相应的路损补偿因子αRPUCCH包括:
根据干扰和噪声的功率级别以及上行路损确定一次传输的PUCCH数据所期望的发射功率PA;根据所述期望的发射功率PA以及用户设备的最大发射功率PMAX确定重复传输的PUCCH数据的第一重复传输次数RA;其中,RA为用户设备始终以最大功率PMAX发射情况下用户设备所需要的重复传输次数;根据所述RA以及用户设备支持的重复传输次数集合确定重复传
输的PUCCH数据的第二重复传输次数RB;其中,所述RB为属于用户设备支持的重复传输次数集合的大于等于RA的所有元素中的最小值;所述第二重复传输次数RB等于实际的重复传输的PUCCH数据的重复传输次数NPUCCH。根据RB和一次传输的期望的发射功率PA确定重复传输RB次的PUCCH数据的期望的发射功率PB;根据所述PA与PB之间的功率差(单位是dB),以及上行路损确定重复传输的PUCCH数据的路损补偿因子αRPUCCH。
本实施例中,设想PUCCH的重复传输次数NPUCCH大于预定义值KPUCCH;
设想用户设备最大发射功率PMAX取值为23dBm,一次传输的PUCCH数据期望的接收功率PO_PUCCH取值为-100dBm,明确闭环功率控制命令δPUCCH取值为0dB,用户设备估计的下行路损PLDL取值大概为135dB,重复传输PUCCH数据的路损补偿因子αRPUCCH取值为0.9;设想当前PUCCH格式为PUCCH格式1a,并且格式1a的功率偏置ΔMCS取值为0dB。
最终,用户设备根据以下等式,
PT,RPUCCH=min{PMAX,PO_PUCCH+PLDL'+ΔFormat+δPUCCH}
PLDL'=αRPUCCH·PLDL,
确定重复传输的PUCCH数据的实际发射功率PT,RPUCCH为:
min{23,-100+0.9×135+0+0}=21.5(dBm)。
此时,重复传输的PUCCH数据的实际发射功率PT,RPUCCH低于用户设备所支持的最大发射功率PMAX。
具体实施例九
网络(基站侧)确定噪声的功率级别和来自相邻小区的干扰的功率级别,并且根据以下至少之一确定上行的路损:来自用户设备的SRS;来自用
户设备的RA信号;来自用户设备的关于下行路损测量值的反馈。网络根据所述的噪声和干扰的功率级别以及上行路损确定重复传输的PUCCH数据的重复传输次数NPUCCH,以及相应的重复传输的PUCCH数据的期望的接收功率PO_RPUCCH和路损补偿因子αRPUCCH并将重复传输的PUCCH数据的重复传输次数NPUCCH以及期望的接收功率PO_RPUCCH和路损补偿因子αRPUCCH通知给用户设备。或者,网络和用户设备根据来自用户设备的重复传输的RA信号的重复传输次数NRA确定重复传输的PUCCH数据的重复传输次数NPUCCH,网络根据所述的噪声和干扰的功率级别以及上行路损确定重复传输的PUCCH数据的期望的接收功率PO_RPUCCH和路损补偿因子αRPUCCH并将上述期望的接收功率PO_RPUCCH和路损补偿因子αRPUCCH通知给用户设备。
在实现过程中,网络根据噪声和干扰的功率级别以及上行路损确定重复传输的PUCCH数据的重复传输次数NPUCCH以及期望的接收功率PO_RPUCCH和路损补偿因子αRPUCCH包括:
根据干扰和噪声的功率级别以及上行路损确定一次传输的PUCCH数据所期望的发射功率PA;根据所述期望的发射功率PA以及用户设备的最大发射功率PMAX确定重复传输的PUCCH数据的第一重复传输次数RA;其中,RA为用户设备始终以最大功率PMAX发射情况下用户设备所需要的重复传输次数;根据所述RA以及用户设备支持的重复传输次数集合确定重复传输的PUCCH数据的第二重复传输次数RB;其中,所述RB为属于用户设备支持的重复传输次数集合的大于等于RA的所有元素中的最小值;所述第二重复传输次数RB等于实际的重复传输的PUCCH数据的重复传输次数NPUCCH。根据RB和一次传输的期望的发射功率PA确定重复传输RB次的PUCCH数据的期望的发射功率PB;根据所述PA与PB之间的功率差(单位是dB),以及上行路损确定重复传输的PUCCH数据的期望的接收功率
PO_RPUCCH和路损补偿因子αRPUCCH。
本实施例中,设想PUCCH的重复传输次数NPUCCH大于预定义值KPUCCH;设想用户设备最大发射功率PMAX取值为23dBm,重复传输的PUCCH数据期望的接收功率PO_RPUCCH取值为-106dBm,明确闭环功率控制命令δPUCCH取值为0dB,用户设备估计的下行路损PLDL取值大概为142dB,重复传输PUCCH数据的路损补偿因子αRPUCCH取值为0.9;设想当前PUCCH格式为PUCCH格式1a,并且格式1a的功率偏置ΔMCS取值为0dB。
最终,用户设备根据以下等式,
PT,RPUCCH=min{PMAX,PO_RPUCCH+PLDL'+ΔFormat+δPUCCH}
PLDL'=αRPUCCH·PLDL,
确定重复传输的PUCCH数据的实际发射功率PT,RPUCCH为:
min{23,-106+0.9×142+0+0}=21.8(dBm)。
此时,重复传输的PUCCH数据的实际发射功率PT,RPUSCH低于用户设备所支持的最大发射功率PMAX。
具体实施例十
网络(基站侧)确定噪声的功率级别和来自相邻小区的干扰的功率级别,并且根据以下至少之一确定上行的路损:来自用户设备的SRS;来自用户设备的RA信号;来自用户设备的关于下行路损测量值的反馈。网络根据所述的噪声和干扰的功率级别以及上行路损确定重复传输的PUCCH数据的重复传输次数NPUCCH,以及相应的重复传输的PUCCH数据的第一功率偏置PRPUCCH_OFFSET_1,并将重复传输的PUCCH数据的重复传输次数NPUCCH和第一功率偏置PRPUCCH_OFFSET_1通知给用户设备。或者,网络和用户设备根据来自用户设备的重复传输的上行RA信号的重复传输次数NRA确定重复传输PUCCH数据的重复传输次数NPUCCH,网络根据所述的噪声和
干扰的功率级别以及上行路损确定重复PUCCH数据功率偏置PRPUCCH_OFFSET_1并将上述第一功率偏置PRPUCCH_OFFSET_1通知给用户设备。
在实现过程中,网络根据噪声和干扰的功率级别以及上行路损确定重复传输次数NPUCCH以及相应的第一功率偏置PRPUCCH_OFFSET_1包括:
根据干扰和噪声的功率级别以及上行路损确定一次传输的PUCCH数据所期望的发射功率PA;根据所述期望的发射功率PA以及用户设备的最大发射功率PMAX确定重复传输的PUCCH数据的第一重复传输次数RA;其中,RA为用户设备始终以最大功率PMAX发射情况下用户设备所需要的重复传输次数;根据所述RA以及用户设备支持的重复传输次数集合确定重复传输的PUCCH数据的第二重复传输次数RB;其中,所述RB为属于用户设备支持的重复传输次数集合的大于等于RA的所有元素中的最小值;所述第二重复传输次数RB等于实际的重复传输的PUCCH数据的重复传输次数NPUCCH。根据RB和一次传输的期望的发射功率PA确定重复传输RB次的PUCCH数据的期望的发射功率PB;根据所述PA与PB之间的功率差(单位是dB)确定重复传输的PUCCH数据的第一功率偏置PRPUCCH_OFFSET_1。
本实施例中,设想PUCCH的重复传输次数NPUCCH大于预定义值KPUCCH;设想用户设备最大发射功率PMAX取值为23dBm,一次传输的PUCCH数据期望的接收功率PO_RPUCCH取值为-100dBm,明确闭环功率控制命令δPUCCH取值为0dB,用户设备估计的下行路损PLDL取值大概为142dB,重复传输PUCCH数据的第一功率偏置PRPUCCH_OFFSET_1取值为-20dB;设想当前PUCCH格式为PUCCH格式1a,并且格式1a的功率偏置ΔMCS取值为0dB。
最终,用户设备根据以下等式,
PT,RPUCCH=min{PMAX,P'+PRPUCCH_OFFSET_1}
P'=PO_PUCCH+PLDL+ΔFormat+δPUCCH,
确定重复传输的PUCCH数据的实际发射功率PT,RPUCCH为:
min{23,-100+142+0+0-20}=22(dBm)。
此时,重复传输的PUCCH数据的实际发射功率PT,RPUCCH低于用户设备所支持的最大发射功率PMAX。
具体实施例十一
网络(基站侧)确定噪声的功率级别和来自相邻小区的干扰的功率级别,并且根据以下至少之一确定上行的路损:来自用户设备的SRS;来自用户设备的RA信号;来自用户设备的关于下行路损测量值的反馈。网络根据所述的噪声和干扰的功率级别以及上行路损确定重复传输的PUCCH数据的重复传输次数NPUCCH,以及相应的重复传输的PUCCH数据的第二功率偏置PRPUCCH_OFFSET_2,并将重复传输的PUCCH数据的重复传输次数NPUCCH和第二功率偏置PRPUCCH_OFFSET_2通知给用户设备。或者,网络和用户设备根据来自用户设备的重复传输的上行RA信号的重复传输次数NRA确定重复传输PUCCH数据的重复传输次数NPUCCH,网络根据所述的噪声和干扰的功率级别以及上行路损确定重复PUCCH数据功率偏置PRPUCCH_OFFSET_2并将上述第二功率偏置PRPUCCH_OFFSET_2通知给用户设备。
在实现过程中,网络根据噪声和干扰的功率级别以及上行路损确定重复传输次数NPUCCH以及相应的第二功率偏置PRPUCCH_OFFSET_2包括:
根据干扰和噪声的功率级别以及上行路损确定一次传输的PUCCH数据所期望的发射功率PA;根据所述期望的发射功率PA以及用户设备的最大发射功率PMAX确定重复传输的PUCCH数据的第一重复传输次数RA;其中,RA为用户设备始终以最大功率PMAX发射情况下用户设备所需要的重复传输次数;根据所述RA以及用户设备支持的重复传输次数集合确定重复传输的PUCCH数据的第二重复传输次数RB;其中,所述RB为属于用户设备
支持的重复传输次数集合的大于等于RA的所有元素中的最小值;所述第二重复传输次数RB等于实际的重复传输的PUCCH数据的重复传输次数NPUCCH。根据RB和一次传输的期望的发射功率PA确定重复传输RB次的PUCCH数据的期望的发射功率PB;根据所述PB与用户设备的最大发射功率PMAX确定重复传输的PUCCH数据的第二功率偏置PRPUCCH_OFFSET_2。
设想PUCCH的重复传输次数NPUCCH大于预定义值KPUCCH。
设想用户设备最大发射功率PMAX取值为23dBm,一次传输的PUCCH数据期望的接收功率PO_RPUCCH取值为-100dBm,明确闭环功率控制命令δPUCCH取值为0dB,用户设备估计的下行路损PLDL取值大概为130dB,重复传输PUCCH数据的第二功率偏置PRPUCCH_OFFSET_2取值为-2dB;设想当前PUCCH格式为PUCCH格式1a,并且格式1a的功率偏置ΔMCS取值为0dB。
最终,用户设备根据以下等式,
PT,RPUCCH=P'+PRPUCCH_OFFSET_2
P'=min{PMAX,PO_PUCCH+PLDL+ΔFormat+δPUCCH},
或者,
PT,RPUCCH=PMAX+PRPUCCH_OFFSET_2,
确定重复传输的PUCCH数据的实际发射功率PT,RPUCCH为:
min{23,-100+130+0+0}-2=21(dBm),
或者,
23-2=21(dBm)。
此时,重复传输的PUCCH数据的实际发射功率PT,RPUCCH低于用户设备所支持的最大发射功率PMAX。
具体实施例十二
网络(基站侧)确定噪声的功率级别和来自相邻小区的干扰的功率级别,并且根据以下至少之一确定上行的路损:来自用户设备的SRS;来自用户设备的RA信号;来自用户设备的关于下行路损测量值的反馈。网络根据所述的噪声和干扰的功率级别以及上行路损确定重复传输的PUCCH数据的重复传输次数NPUCCH,并通知给用户设备。或者,网络和用户设备根据来自用户设备的重复传输的上行RA信号的重复传输次数NRA确定重复传输的PUCCH数据的重复传输次数NPUCCH。
在实现过程中,网络根据噪声和干扰的功率级别以及上行路损确定重复传输的PUCCH数据的重复传输次数NPUCCH包括:
根据干扰和噪声的功率级别以及上行路损确定一次传输的PUCCH数据所期望的发射功率PA;根据所述期望的发射功率PA以及用户设备的最大发射功率PMAX确定重复传输的PUCCH数据的第一重复传输次数RA;其中,RA为用户设备始终以最大功率PMAX发射情况下用户设备所需要的重复传输次数;根据所述RA以及用户设备支持的重复传输次数集合确定重复传输的PUCCH数据的第二重复传输次数RB;其中,所述RB为属于用户设备支持的重复传输次数集合的大于等于RA的所有元素中的最小值;所述第二重复传输次数RB等于实际的重复传输的PUCCH数据的重复传输次数NPUCCH。
设想PUCCH的重复传输次数NPUCCH大于预定义值KPUCCH。
设想用户设备最大发射功率PMAX取值为23dBm,一次传输的PUCCH数据期望的接收功率PO_PUCCH取值为-100dBm,明确闭环功率控制命令δPUCCH取值为0dB,用户设备估计的下行路损PLDL取值大概为130dB,重复传输PUCCH数据的重复传输次数NPUCCH取值为100次;设想PUCCH格式为PUCCH格式1a,并且格式1a的功率偏置ΔMCS取值为0dB。
最终,用户设备根据以下等式,
PT,RPUCCH=min{PMAX,P'-10·log10(NPUCCH)}
P'=PO_PUCCH+PLDL+ΔFormat+δPUCCH,
确定重复传输的PUCCH数据的实际发射功率PT,RPUCCH为:
P'=-100+142+0+0=42(dBm)
min{23,P'-10·log10(100)}=22(dBm)。
此时,重复传输的PUCCH数据的实际发射功率PT,RPUCCH低于用户设备所支持的最大发射功率PMAX。
需要指出的是,具体实施例七至具体实施例十二中所述干扰和噪声的功率级别是指一次传输过程的平均的干扰和噪声的功率级别;考虑到在对重复传输的PUCCH数据的合并接收过程中,干扰和噪声也将被合并,并且经过合并的干扰和噪声的功率级别与一次传输过程的干扰和噪声的功率级别之间可能存在偏差,闭环功率控制命令除用于补偿无线信道的快衰落以外,还能用于补偿上述经过合并的干扰和噪声的功率级别与一次传输过程的干扰和噪声的功率级别之间的偏差,或者,在确定重复传输次数NPUCCH或确定重复传输的功率控制参数(包括期望的接收功率PO_RPUCCH、路损补偿因子αRPUCCH、第一功率偏置PRPUCCH_OFFSET_1和第二功率偏置PRPUCCH_OFFSET_2)的过程中,上述偏差的影响能够直接被考虑(即直接引入相应补偿项)。
本领域普通技术人员可以理解:实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成,前述的程序可以存储于一计算机可读取存储介质中,该程序在执行时,执行包括上述方法实施例的步骤;而前述的存储介质包括:移动存储设备、随机存取存储器(RAM,Random Access Memory)、只读存储器(ROM,Read-Only Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
或者,本发明实施例上述集成的单元如果以软件功能模块的形式实现并作为独立的产品销售或使用时,也可以存储在一个计算机可读取存储介质中。基于这样的理解,本发明实施例的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机、服务器、或者网络设备等)执行本发明各个实施例所述方法的全部或部分。而前述的存储介质包括:移动存储设备、RAM、ROM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以所述权利要求的保护范围为准。
本发明实施例中,当PUSCH数据的重复传输次数大于KPUSCH时,以小于或等于最大发射功率的功率发送重复传输的PUSCH数据;当PUCCH数据的重复传输次数大于KPUCCH时,以小于或等于最大发射功率的功率发送重复传输的PUCCH数据;这就避免了用户设备总是以最大功率发射的问题,解决了相关的功率控制机制在MTC覆盖增强场景下降低了用户设备能效、且不利于用户设备节电的问题。
Claims (55)
- 一种功率控制方法,所述方法包括:当物理上行共享信道PUSCH数据的重复传输次数大于KPUSCH时,以小于或等于最大发射功率的功率发送重复传输的PUSCH数据;当物理上行控制信道PUCCH数据的重复传输次数大于KPUCCH时,以小于或等于最大发射功率的功率发送重复传输的PUCCH数据;其中,所述KPUSCH和KPUCCH为预定义值。
- 如权利要求1所述的方法,其中,所述发送重复传输的PUSCH数据之前,所述方法还包括:根据重复传输的PUSCH数据的功率控制参数、或者重复传输的PUSCH数据的重复传输次数NPUSCH,确定重复传输的PUSCH数据的实际发射功率。
- 如权利要求2所述的方法,其中,所述重复传输的PUSCH数据的功率控制参数包括:网络通知的用户设备专有的参数。
- 如权利要求3所述的方法,其中,所述用户设备专有的参数,包括:专为重复传输PUSCH数据所设定的参数;所述专为重复传输PUSCH数据所设定的参数包括以下至少之一:重复传输PUSCH数据对应的期望接收功率PO_RPUSCH;重复传输PUSCH数据对应的路损补偿因子αRPUSCH;重复传输的PUSCH数据的第一功率偏置参数PRPUSCH_OFFSET_1,和重复传输的PUSCH数据的第二功率偏置参数PRPUSCH_OFFSET_2。
- 如权利要求4所述的方法,其中,所述根据重复传输的PUSCH数据的功率控制参数,确定重复传输的PUSCH数据的实际发射功率,包括:根据重复传输PUSCH数据的期望接收功率PO_RPUSCH参数以及以下等式,确定重复传输的PUSCH数据的实际发射功率:PT,RPUSCH=min{PMAX,PO_RPUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH},其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUSCH表示重复传输的PUSCH数据的期望接收功率,PLDL表示下行路损估计,M表示一次PUSCH数据传输所占用的资源块数量,ΔMCS表示依赖于PUSCH数据的调制编码方案MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
- 如权利要求4所述的方法,其中,所述根据重复传输的PUSCH数据的功率控制参数,确定重复传输的PUSCH数据的实际发射功率,包括:根据重复传输PUSCH数据的路损补偿因子αRPUSCH以及以下等式,确定重复传输的PUSCH数据的实际发射功率:PT,RPUSCH=min{PMAX,PO_PUSCH+PLDL'+10·log10(M)+ΔMCS+δPUSCH}PLDL'=αRPUSCH·PLDL,其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_PUSCH表示一次传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,αRPUSCH表示重复传输的PUSCH数据的路损补偿因子,M表示一次PUSCH数据传输所占用资源块数量,ΔMCS表示依赖PUSCH数据MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
- 如权利要求4所述的方法,其中,所述根据重复传输的PUSCH数据的功率控制参数,确定重复传输的PUSCH数据的实际发射功率,包括:根据重复传输PUSCH数据的期望接收功率参数PO_PUSCH和重复传输PUSCH数据的路损补偿因子参数αRPUSCH、以及以下等式,确定重复传输的PUSCH数据的实际发射功率:PT,RPUSCH=min{PMAX,PO_RPUSCH+PLDL'+10·log10(M)+ΔMCS+δPUSCH}PLDL'=αRPUSCH·PLDL,其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUSCH表示重复传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,αRPUSCH表示重复传输的PUSCH数据的路损补偿因子,M表示一次PUSCH数据传输所占用的资源块数,ΔMCS表示依赖于PUSCH数据的MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
- 如权利要求4所述的方法,其中,所述根据重复传输的PUSCH数据的功率控制参数,确定重复传输的PUSCH数据的实际发射功率,包括:根据重复传输的PUSCH数据的第一功率偏置参数PRPUSCH_OFFSET_1、以及以下等式,确定重复传输的PUSCH数据的实际发射功率:PT,RPUSCH=min{PMAX,P'+PRPUSCH_OFFSET_1}P'=PO_PUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH,其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUSCH表示一次传输的PUSCH数据的期望接收功率,PLDL表示下行路损估计,M表示一次PUSCH数据传输所占用的资源块数,ΔMCS表示依赖于PUSCH数据MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
- 如权利要求4所述的方法,其中,所述根据重复传输的PUSCH数据的功率控制参数,确定重复传输的PUSCH数据的实际发射功率,包括:根据重复传输的PUSCH数据的第二功率偏置参数PRPUSCH_OFFSET_2、以及以下等式,确定重复传输的PUSCH数据的实际发射功率:PT,RPUSCH=P'+PRPUSCH_OFFSET_2P'=min{PMAX,PO_PUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH};或者,根据重复传输的PUSCH数据的第二功率偏置参数PRPUSCH_OFFSET_2、以及以下等式,确定重复传输的PUSCH数据的实际发射功率:PT,RPUSCH=PMAX+PRPUSCH_OFFSET_2,其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUSCH表示一次传输的PUSCH数据的期望接收功率,PLDL表示下行路损估计,PRPUSCH_OFFSET_2表示重复传输的PUSCH数据的第二功率偏置参数,M表示一次PUSCH数据传输所占用的资源块数量,ΔMCS表示依赖PUSCH数据MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
- 如权利要求4所述的方法,其中,所述根据重复传输的PUSCH数据的重复传输次数NPUSCH,确定重复传输的PUSCH数据的实际发射功率,包括:根据重复传输PUSCH数据的重复传输次数NPUSCH以及以下等式,确定重复传输的PUSCH数据的实际发射功率:PT,RPUSCH=min{PMAX,P'-10·log10(NPUSCH)}P'=PO_PUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH,其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUSCH表示一次传输的PUSCH数据的期望接收功率,PLDL表示下行路损估计,M表示一次PUSCH数据传输所占用的资源块数量,ΔMCS表示依赖于PUSCH数据的MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
- 如权利要求1所述的方法,其中,当发射导频符号时,所述方法还包括:将所述导频符号以与所述重复传输的PUSCH数据符号相同的发射功率发射,或者,将所述导频符号始终以最大功率发射。
- 如权利要求1所述的方法,其中,在射频资源控制RRC连接建立之前,所述方法还包括:根据已有功率控制机制发射重复传输的PUSCH数据,或者,始终以最大功率发射重复传输的PUSCH数据。
- 如权利要求1所述的方法,其中,所述发送重复传输的PUCCH数据之前,所述方法还包括:根据重复传输的PUCCH数据的功率控制参数,或者重复传输PUCCH数据的重复传输次数NPUCCH,确定重复传输的PUCCH数据的发射功率。
- 如权利要求13所述的方法,其中,所述重复传输的PUCCH数据的功率控制参数包括:网络通知的用户设备专有的参数。
- 如权利要求14所述的方法,其中,所述用户设备专有参数,包括:专为重复传输PUCCH数据所设定的参数;所述专为重复传输PUCCH数据所设定的参数包括以下至少之一:重复传输PUCCH数据对应的期望接收功率PO_RPUCCH;重复传输的PUCCH数据对应的路损补偿因子αRPUCCH;重复传输的PUCCH数据的第一功率偏置参数PRPUCCH_OFFSET_1;重复传输的PUSCH数据的第二功率偏置参数PRPUCCH_OFFSET_2。
- 如权利要求15所述的方法,其中,所述根据重复传输PUCCH数据的功率控制参数确定重复传输的PUCCH数据的实际发射功率,包括:根据重复传输PUCCH数据的期望的接收功率PO_RPUCCH参数以及以下等 式,确定重复传输的PUCCH数据的实际发射功率:PT,RPUCCH=min{PMAX,PO_RPUCCH+PLDL+ΔFormat+δPUCCH},其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示重复传输PUCCH数据的期望的接收功率,PLDL表示下行路损估计,ΔFormat表示与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确闭环功率控制命令。
- 如权利要求15所述的方法,其中,所述根据重复传输PUCCH数据的功率控制参数确定重复传输的PUCCH数据的实际发射功率,包括:根据重复传输的PUCCH数据的路损补偿因子αRPUCCH、以及以下等式,确定重复传输的PUCCH数据的实际发射功率:PT,RPUCCH=min{PMAX,PO_PUCCH+PLDL'+ΔFormat+δPUCCH}PLDL'=αRPUCCH·PLDL,其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示一次传输的PUCCH数据的期望接收功率,PLDL表示下行路损估计,αRPUCCH表示重复传输PUCCH数据的路损补偿因子,ΔFormat表示与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。
- 如权利要求15所述的方法,其中,所述根据重复传输PUCCH数据的功率控制参数确定重复传输的PUCCH数据的实际发射功率,包括:根据重复传输PUCCH数据的期望接收功率PO_RPUCCH、重复传输的PUCCH数据的路损补偿因子αRPUCCH、以及以下等式,确定重复传输的PUCCH数据的实际发射功率:PT,RPUCCH=min{PMAX,PO_RPUCCH+PLDL'+ΔFormat+δPUCCH}PLDL'=αRPUCCH·PLDL,其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示重复传输的PUCCH数据的期望接收功率,PLDL表示下行路损估计,αRPUCCH表示重复传输PUCCH数据的路损补偿因子,ΔFormat表示与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。
- 如权利要求15所述的方法,其中,所述根据重复传输PUCCH数据的功率控制参数确定重复传输的PUCCH数据的实际发射功率,包括:根据重复传输的PUCCH数据的第一功率偏置参数PRPUCCH_OFFSET_1、以及以下等式,确定重复传输的PUCCH数据的实际发射功率:PT,RPUCCH=min{PMAX,P'+PRPUCCH_OFFSET_1}P'=PO_PUCCH+PLDL+ΔFormat+δPUCCH,其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示一次传输的PUCCH数据的期望接收功率,PLDL表示下行路损估计,ΔFormat是与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。
- 如权利要求15所述的方法,其中,所述根据重复传输PUCCH数据的功率控制参数确定重复传输的PUCCH数据的实际发射功率,包括:根据重复传输的PUCCH数据的第二功率偏置参数PRPUCCH_OFFSET_2以及以下等式,确定重复传输的PUCCH数据的实际发射功率:PT,RPUCCH=P'+PRPUCCH_OFFSET_2P'=min{PMAX,PO_PUCCH+PLDL+ΔFormat+δPUCCH},或者,根据以下等式,确定重复传输的PUCCH数据的实际发射功率:PT,RPUCCH=PMAX+PRPUCCH_OFFSET_2,其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示 最大的发射功率,PO_RPUCCH表示一次传输的PUSCH数据的期望接收功率,PLDL表示下行路损估计,ΔFormat是与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。
- 如权利要求15所述的方法,其中,所述根据重复传输PUCCH数据的重复传输次数NPUCCH确定重复传输的PUCCH数据的实际发射功率,包括:根据重复传输PUCCH数据的重复传输次数NPUCCH以及以下等式,确定重复传输的PUCCH数据的实际发射功率:PT,RPUCCH=min{PMAX,P'-10·log10(NPUCCH)}P'=PO_PUCCH+PLDL+ΔFormat+δPUCCH,其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示一次传输的PUCCH数据的期望接收功率,PLDL表示下行路损估计,ΔFormat表示与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。
- 如权利要求15所述的方法,其中,当发射导频符号时,所述方法还包括:将所述导频符号以与所述重复传输的PUCCH数据符号相同的发射功率发射,或者,将所述导频符号始终以最大功率发射。
- 如权利要求15至22任一项所述的方法,其中,在RRC连接建立之前,所述方法还包括:根据已有功率控制机制发射重复传输的PUCCH数据;或者,始终以最大功率发射重复传输的PUCCH数据。
- 一种功率控制方法,所述方法包括:当用户设备的物理上行共享信道PUSCH数据的重复传输次数大于KPUSCH时,通知用户设备专有的重复传输的PUSCH数据的功率控制参数;当用户设备的物理上行控制信道PUCCH数据的重复传输次数大于KPUCCH时,通知用户设备专有的重复传输的PUCCH数据的功率控制参数;其中,所述KPUSCH和KPUCCH为预定义值。
- 如权利要求24所述的方法,其中,所述重复传输的PUSCH数据的功率控制参数,包括:专为重复传输PUSCH数据所设定的参数;所述专为重复传输PUSCH数据所设定的参数包括以下至少之一:重复传输PUSCH数据对应的期望接收功率PO_RPUSCH;重复传输PUSCH数据对应的路损补偿因子αRPUSCH;重复传输的PUSCH数据的第一功率偏置参数PRPUSCH_OFFSET_1、和重复传输的PUSCH数据的第二功率偏置参数PRPUSCH_OFFSET_2。
- 如权利要求24或25所述的方法,其中,所述重复传输PUCCH数据的功率控制参数,包括:专为重复传输PUCCH数据所设定的参数;所述专为重复传输PUCCH数据所设定的参数包括以下至少之一:重复传输PUCCH数据对应的期望接收功率PO_RPUCCH;重复传输PUCCH数据对应的路损补偿因子αRPUCCH;重复传输的PUCCH数据的第一功率偏置参数PRPUCCH_OFFSET_1、和重复传输的PUCCH数据的第二功率偏置参数PRPUCCH_OFFSET_2。
- 一种用户设备,所述用户设备包括:检测单元和发射单元;其中,所述检测单元,配置为检测到物理上行共享信道PUSCH数据的重复传输次数大于KPUSCH时,触发所述发射单元以小于或等于最大发射功率的功率发送重复传输的PUSCH数据;在检测到物理上行控制信道PUCCH数据 的重复传输次数大于KPUCCH时,触发所述发射单元以小于或等于最大发射功率的功率发送重复传输的PUCCH数据;其中,所述KPUSCH和KPUCCH为预定义值。
- 如权利要求27所述用户设备,其中,所述用户设备还包括:第一确定单元,配置为根据重复传输的PUSCH数据的功率控制参数、或者重复传输的PUSCH数据的重复传输次数NPUSCH,确定重复传输的PUSCH数据的实际发射功率;所述发射单元,还配置为根据所述实际发射功率发射重复传输的PUSCH数据。
- 如权利要求28所述的用户设备,其中,所述重复传输PUSCH数据的功率控制参数包括:网络通知的用户设备专有的参数。
- 如权利要求29所述的用户设备,其中,所述用户设备专有的参数,包括:专为重复传输PUSCH数据所设定的参数;所述专为重复传输PUSCH数据所设定的参数包括以下至少之一:重复传输PUSCH数据对应的期望接收功率PO_RPUSCH;重复传输PUSCH数据对应的路损补偿因子αRPUSCH;重复传输的PUSCH数据的第一功率偏置参数PRPUSCH_OFFSET_1、和重复传输的PUSCH数据的第二功率偏置参数PRPUSCH_OFFSET_2。
- 如权利要求30所述的用户设备,其中,所述第一确定单元,还配置为根据重复传输的PUSCH数据的期望的接收功率PO_RPUSCH参数以及以下等式,确定重复传输的PUSCH数据的实际发射功率:PT,RPUSCH=min{PMAX,PO_RPUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH}其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUSCH表示重复传输的PUSCH数据的期望接收功率,PLDL表示下行路损估计,M表示一次PUSCH数据传输所占用的资源块数量,ΔMCS表示依赖于PUSCH数据的调制编码方案MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
- 如权利要求30所述的用户设备,其中,所述第一确定单元,还配置为根据重复传输的PUSCH数据的路损补偿因子αRPUSCH以及以下等式确定重复传输的PUSCH数据的实际发射功率:PT,RPUSCH=min{PMAX,PO_PUSCH+PLDL'+10·log10(M)+ΔMCS+δPUSCH}PLDL'=αRPUSCH·PLDL其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_PUSCH表示一次传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,αRPUSCH表示重复传输的PUSCH数据的路损补偿因子,M表示一次PUSCH数据传输所占用的资源块数量,ΔMCS表示依赖PUSCH数据MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
- 如权利要求30所述的用户设备,其中,所述第一确定单元,还配置为根据重复传输的PUSCH数据的期望接收功率PO_PUSCH和重复传输的PUSCH数据的路损补偿因子参数αRPUSCH、以及以下等式,确定重复传输的PUSCH数据的实际发射功率:PT,RPUSCH=min{PMAX,PO_RPUSCH+PLDL'+10·log10(M)+ΔMCS+δPUSCH}PLDL'=αRPUSCH·PLDL其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示 最大的发射功率,PO_RPUSCH表示重复传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,αRPUSCH表示重复传输的PUSCH数据的路损补偿因子,M表示一次PUSCH数据传输所占用的资源块数,ΔMCS表示依赖于PUSCH数据的MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
- 如权利要求30所述的用户设备,其中,所述第一确定单元,还配置为根据重复传输的PUSCH数据的第一功率偏置参数PRPUSCH_OFFSET_1、以及以下等式,确定重复传输的PUSCH数据的实际发射功率:PT,RPUSCH=min{PMAX,P'+PRPUSCH_OFFSET_1}P'=PO_PUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH,其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUSCH表示一次传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,M表示一次PUSCH数据传输所占用的资源块数,ΔMCS表示依赖PUSCH数据MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
- 如权利要求30所述的用户设备,其中,所述第一确定单元,还配置为根据重复传输的PUSCH数据的第二功率偏置参数PRPUSCH_OFFSET_2、以及以下等式,确定重复传输的PUSCH数据的实际发射功率:PT,RPUSCH=P'+PRPUSCH_OFFSET_2P'=min{PMAX,PO_PUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH};或者,根据重复传输的PUSCH数据的第二功率偏置参数PRPUSCH_OFFSET_2、以及以下等式,确定重复传输的PUSCH数据的实际发射功率:PT,RPUSCH=PMAX+PRPUSCH_OFFSET_2,其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUSCH表示一次传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,PRPUSCH_OFFSET_2表示重复传输的PUSCH数据的第二功率偏置参数,M表示一次PUSCH数据传输所占用的资源块数量,ΔMCS表示依赖PUSCH数据MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
- 如权利要求30所述的用户设备,其中,所述第一确定单元,还配置为根据重复传输PUSCH数据的重复传输次数NPUSCH以及以下等式,确定重复传输的PUSCH数据的实际发射功率:PT,RPUSCH=min{PMAX,P'-10·log10(NPUSCH)}P'=PO_PUSCH+PLDL+10·log10(M)+ΔMCS+δPUSCH,其中,PT,RPUSCH表示重复传输的PUSCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUSCH表示一次传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,M表示一次PUSCH数据传输所占用的资源块数量,ΔMCS表示依赖于PUSCH数据的MCS的功率偏置,δPUSCH对应于来自网络的明确的闭环功率控制命令。
- 如权利要求27所述的用户设备,其中,所述发射单元,还配置为当发射导频符号时,将所述导频符号以与所述重复传输的PUSCH数据符号相同的发射功率发射,或者,将所述导频符号始终以最大功率发射。
- 如权利要求27所述的用户设备,其中,所述发射单元,还配置为在射频资源控制RRC连接建立之前,根据已有功率控制机制发射重复传输的PUSCH数据,或者,始终以最大功率发射重复传输的PUSCH数据。
- 如权利要求27所述的用户设备,其中,所述第一确定单元,还配置为根据重复传输的PUCCH数据的功率控制参数确定重复传输的PUCCH 数据的发射功率;或者,根据重复传输PUCCH数据的重复传输次数NPUCCH,确定重复传输的PUCCH数据的发射功率。
- 如权利要求39所述的用户设备,其中,所述重复传输PUCCH数据的功率控制参数包括:网络通知的用户设备专有的参数。
- 如权利要求40所述的用户设备,其中,所述用户设备专有的参数,包括:专为重复传输PUCCH数据所设定的参数;所述专为重复传输PUCCH数据所设定的参数包括以下至少之一:重复传输PUCCH数据对应的期望接收功率PO_RPUCCH;重复传输PUCCH数据对应的路损补偿因子αRPUCCH;重复传输的PUCCH数据的第一功率偏置参数PRPUCCH_OFFSET_1、和重复传输的PUSCH数据的第二功率偏置参数PRPUCCH_OFFSET_2。
- 如权利要求41所述的用户设备,其中,所述第一确定单元,还配置为根据重复传输的PUCCH数据的期望的接收功率PO_RPUCCH参数、以及以下等式,确定重复传输的PUCCH数据的实际发射功率:PT,RPUCCH=min{PMAX,PO_RPUCCH+PLDL+ΔFormat+δPUCCH},其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示重复传输的PUCCH数据的期望的接收功率,PLDL表示下行路损估计,ΔFormat表示与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确闭环功率控制命令。
- 如权利要求41所述的用户设备,其中,所述第一确定单元,还配置为根据重复传输的PUCCH数据的路损补偿因子αRPUCCH、以及以下等式,确定重复传输的PUCCH数据的实际发射功率:PT,RPUCCH=min{PMAX,PO_PUCCH+PLDL'+ΔFormat+δPUCCH}PLDL'=αRPUCCH·PLDL,其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示一次传输的PUCCH数据的期望的接收功率,PLDL表示下行路损估计,αRPUCCH表示重复传输的PUCCH数据的路损补偿因子,ΔFormat表示与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。
- 如权利要求41所述的用户设备,其中,所述第一确定单元,还配置为根据重复传输的PUCCH数据的期望的接收功率PO_RPUCCH、重复传输的PUCCH数据的路损补偿因子αRPUCCH、以及以下等式确定重复传输的PUCCH数据的实际发射功率:PT,RPUCCH=min{PMAX,PO_RPUCCH+PLDL'+ΔFormat+δPUCCH}PLDL'=αRPUCCH·PLDL,其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示重复传输的PUCCH数据的期望的接收功率,PLDL表示下行路损估计,αRPUCCH表示重复传输的PUCCH数据的路损补偿因子,ΔFormat表示与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。
- 如权利要求41所述的用户设备,其中,所述第一确定单元,还配置为根据重复传输的PUCCH数据的第一功率偏置参数PRPUCCH_OFFSET_1、以及以下等式,确定重复传输的PUCCH数据的实际发射功率:PT,RPUCCH=min{PMAX,P'+PRPUCCH_OFFSET_1}P'=PO_PUCCH+PLDL+ΔFormat+δPUCCH,其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示 最大的发射功率,PO_RPUCCH表示一次传输的PUCCH数据的期望的接收功率,PLDL表示下行路损估计,ΔFormat是与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。
- 如权利要求41所述的用户设备,其中,所述第一确定单元,还配置为根据重复传输的PUCCH数据的第二功率偏置参数PRPUCCH_OFFSET_2以及以下等式,确定重复传输的PUCCH数据的实际发射功率:PT,RPUCCH=P'+PRPUCCH_OFFSET_2P'=min{PMAX,PO_PUCCH+PLDL+ΔFormat+δPUCCH};或者,根据以下等式,确定重复传输的PUCCH数据的实际发射功率:PT,RPUCCH=PMAX+PRPUCCH_OFFSET_2,其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示一次传输的PUSCH数据的期望的接收功率,PLDL表示下行路损估计,ΔFormat是与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。
- 如权利要求41所述的用户设备,其中,所述第一确定单元,还配置为根据重复传输PUCCH数据的重复传输次数NPUCCH以及以下等式确定重复传输的PUCCH数据的实际发射功率:PT,RPUCCH=min{PMAX,P'-10·log10(NPUCCH)}P'=PO_PUCCH+PLDL+ΔFormat+δPUCCH,其中,PT,RPUCCH表示重复传输的PUCCH数据的实际发射功率,PMAX表示最大的发射功率,PO_RPUCCH表示一次传输的PUCCH数据的期望的接收功率,PLDL表示下行路损估计,ΔFormat表示与PUCCH格式有关的功率偏置,δPUCCH对应于来自网络的明确的闭环功率控制命令。
- 如权利要求41所述的用户设备,其中,所述发射单元,还配置为 当发射导频符号时,将所述导频符号以与所述重复传输的PUCCH数据符号相同的发射功率发射,或者,将所述导频符号始终以最大功率发射。
- 如权利要求41至48任一项所述的用户设备,其中,所述发射单元,还配置为在RRC连接建立之前,根据已有功率控制机制发射重复传输的PUCCH数据;或者,始终以最大功率发射重复传输的PUCCH数据。
- 一种基站,所述基站包括:第二确定单元和第二发射单元;其中,所述第二确定单元,配置为当用户设备物理上行共享信道PUSCH数据的重复传输次数大于KPUSCH时,确定所述用户设备专有的重复传输的PUSCH数据的功率控制参数;当用户设备的物理上行控制信道PUCCH数据的重复传输次数大于或KPUCCH时,确定所述用户设备专有的重复传输的PUCCH数据的功率控制参数;所述第二发射单元,配置为将所述功率控制参数传输给对应的用户设备。其中,所述KPUSCH和KPUCCH为预定义值。
- 如权利要求50所述的基站,其中,所述重复传输的PUSCH数据的功率控制参数,包括:专为重复传输PUSCH数据所设定的参数;所述专为重复传输PUSCH数据所设定的参数包括以下至少之一:重复传输PUSCH数据对应的期望接收功率PO_RPUSCH;重复传输PUSCH数据对应的路损补偿因子αRPUSCH;重复传输的PUSCH数据的第一功率偏置参数PRPUSCH_OFFSET_1、和重复传输的PUSCH数据的第二功率偏置参数PRPUSCH_OFFSET_2。
- 如权利要求50或51所述的基站,其中,所述重复传输PUCCH数据的功率控制参数,包括:专为重复传输PUCCH数据所设定的参数;所述专为重复传输PUCCH数据所设定的参数包括以下至少之一:重复传输PUCCH数据对应的期望接收功率PO_RPUCCH;重复传输PUCCH数据对应的路损补偿因子αRPUCCH;重复传输的PUCCH数据的第一功率偏置参数PRPUCCH_OFFSET_1、和重复传输的PUSCH数据的第二功率偏置参数PRPUCCH_OFFSET_2。
- 一种功率控制***,所述***包括:用户设备,配置为当物理上行共享信道PUSCH数据的重复传输次数大于KPUSCH时,以小于或等于最大发射功率的功率发送重复传输的PUSCH数据;当物理上行控制信道PUCCH数据的重复传输次数大于KPUCCH时,以小于或等于最大发射功率的功率发送重复传输的PUCCH数据;其中,所述KPUSCH和KPUCCH为预定义值。
- 如权利53所述的***,其中,所述***还包括:基站,配置为当所述用户设备的PUSCH数据的重复传输次数大于KPUSCH时,通知所述用户设备专有的重复传输的PUSCH数据的功率控制参数;当所述用户设备的PUCCH数据的重复传输次数大于或KPUCCH时,通知所述用户设备专有的重复传输的PUCCH数据的功率控制参数。
- 一种计算机存储介质,所述计算机存储介质中存储有计算机可执行指令,该计算机可执行指令用于执行权利要求1至23任一项所述的功率控制方法;和/或,该计算机可执行指令还用于执行权利要求24至26任一项所述的功率控制方法。
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