WO2020062051A1 - 用于上行功率控制的方法及设备 - Google Patents

用于上行功率控制的方法及设备 Download PDF

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Publication number
WO2020062051A1
WO2020062051A1 PCT/CN2018/108398 CN2018108398W WO2020062051A1 WO 2020062051 A1 WO2020062051 A1 WO 2020062051A1 CN 2018108398 W CN2018108398 W CN 2018108398W WO 2020062051 A1 WO2020062051 A1 WO 2020062051A1
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WIPO (PCT)
Prior art keywords
power
user terminal
information
pusch
signature information
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PCT/CN2018/108398
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English (en)
French (fr)
Inventor
王闰昕
刘文佳
侯晓林
武田和晃
武田大树
Original Assignee
株式会社Ntt都科摩
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Application filed by 株式会社Ntt都科摩 filed Critical 株式会社Ntt都科摩
Priority to PCT/CN2018/108398 priority Critical patent/WO2020062051A1/zh
Priority to US17/275,905 priority patent/US11477738B2/en
Priority to CN201880097446.7A priority patent/CN112673678B/zh
Publication of WO2020062051A1 publication Critical patent/WO2020062051A1/zh

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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
    • H04W52/18—TPC being performed according to specific parameters
    • 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
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • 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
    • 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
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/247—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters where the output power of a terminal is based on a path parameter sent by another terminal
    • 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
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/248—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters where transmission power control commands are generated based on a path parameter
    • 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
    • H04W52/16—Deriving transmission power values from another channel
    • 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
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
    • 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
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
    • H04W52/262—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account adaptive modulation and coding [AMC] scheme

Definitions

  • the present disclosure relates to the field of mobile communications, and more particularly, to a method and device for uplink power control.
  • the base station sets the corresponding signature information for each user terminal so that the user terminal can determine Determine its own signature to distinguish different user terminals to reduce interference between user terminals.
  • the signature information may be information indicating an interleaving method adopted by the user terminal when transmitting data, information indicating a scrambling method adopted by the user terminal when transmitting data, or information indicating an extension method adopted by the user terminal when transmitting data, and the like.
  • the user terminal may determine the interleaving mode, the scrambling mode, or the extension mode according to the signature information, and use the determined interleaving mode, the scrambling mode, or the extension mode as its signature.
  • the signature information set by the base station to the user terminal has no direct relationship with the power control of the user terminal.
  • the NOMA system has more application conditions, such as a New Radio (NR) frame structure, NR modulation, and channel coding. Therefore, the range of power control parameters in current communication systems may no longer be suitable for NOMA systems.
  • NR New Radio
  • a method performed by a user terminal includes: receiving signature information for the user terminal from a base station; and determining transmission power of the user terminal according to the received signature information.
  • the signature information includes power information, and the power information indicates information about a transmission power of the user terminal.
  • the method further includes: according to a base power of the user terminal, a path loss compensation power of the user terminal, a compensation power of the user terminal based on a modulation and coding scheme, and power control of an uplink channel of the user terminal.
  • the adjusted compensation power determines the transmission power of the user terminal; the power information indicates the base power, the path loss compensation power, the modulation and coding scheme-based compensation power, and the uplink channel's Adjustment information for at least one of the compensation powers of the power control adjustment.
  • the base power includes a nominal power set by the base station for all user terminals in a cell coverage area of the base station, and an exclusive power of the user terminal; the power information indicates that Adjustment information for the exclusive power of the user terminal.
  • the path loss compensation power is determined according to a path loss compensation parameter of the user terminal and a downlink path loss of the user terminal; the power information indicates a path loss compensation of the user terminal Parameter adjustment information.
  • the method further includes determining the base power, the path loss compensation power, the modulation and coding scheme-based compensation power, and power control of the uplink channel according to high-level parameters. Adjustment information for at least one of the adjusted compensation powers.
  • a user terminal includes: a receiving unit configured to receive signature information for the user terminal from a base station; and a control unit configured to determine a transmission power of the user terminal according to the received signature information.
  • a method performed by a base station includes: determining signature information for a user terminal; and sending the determined signature information to the user terminal.
  • the signature information includes power information, and the power information indicates information about a transmission power of the user terminal.
  • a base station includes: a control unit configured to determine signature information for a user terminal; and a sending unit configured to send the determined signature information to the user terminal.
  • the signature information includes power information, and the power information indicates information about a transmission power of the user terminal.
  • FIG. 1 is a flowchart of a method performed by a user terminal according to an embodiment of the present disclosure
  • FIG. 2 is a flowchart of a method performed by a base station according to an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of a user terminal according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of a hardware structure of a user terminal or a base station according to an embodiment of the present disclosure.
  • the same reference numerals denote the same elements throughout. It should be understood that the embodiments described herein are merely illustrative and should not be construed as limiting the scope of the disclosure.
  • the user terminals described herein may include various types of user terminals (User Equipment, UE), such as mobile terminals (also referred to as mobile stations) or fixed terminals. However, for convenience, it is sometimes interchangeable in the following Use UE and mobile station.
  • UE User Equipment
  • the base station may be a fixed station, a NodeB, an eNodeB (eNB), an access point, an access point, a reception point, a femto cell, a small cell, and the like, which are not limited herein.
  • eNB eNodeB
  • the base station may be a fixed station, a NodeB, an eNodeB (eNB), an access point, an access point, a reception point, a femto cell, a small cell, and the like, which are not limited herein.
  • FIG. 1 is a flowchart of a method 100 for uplink power control performed by a user terminal according to an embodiment of the present disclosure.
  • the uplink power control may determine the transmission power of an uplink physical channel.
  • uplink power control can determine the physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH), physical random access channel (PRACH), and so on. Transmit power.
  • the uplink power control can determine the transmit power of the uplink signal.
  • the uplink power control may determine the transmission power of a sounding reference signal (SRS).
  • SRS sounding reference signal
  • the upper line power control determines the transmission power of the PUSCH as an example to describe an embodiment of the present disclosure.
  • a user terminal receives signature information for the user terminal from a base station.
  • the signature may be a multiple access (MA) signature, such as the MA signature specified in 3GPP TR 38.812.
  • the signature of the user terminal may be one or more of the user terminal's transmission power, interleaving mode, scrambling mode, and extension mode.
  • the signature information may be a signature parameter.
  • the user terminal may determine the signature of the user terminal according to the signature parameters.
  • the signature information may include power information that indicates information about the transmission power of the user terminal so that the user terminal determines its own transmission power.
  • the signature information may include other information.
  • the signature information may further include interleaving information indicating an interleaving manner of the user terminal, so that the user terminal determines its own interleaving manner.
  • the signature information may further include scrambling information indicating a scrambling mode of the user terminal, so that the user terminal determines its own scrambling mode.
  • the signature information may further include extension information indicating an extension mode of the user terminal, so that the user terminal determines its own extension mode.
  • the signature information is not limited to including the power information, interleaving information, scrambling information, and extension information listed here, and may also include information indicating other operations performed on the data when the user terminal sends the data.
  • the signature information may be set to a field having a predetermined bit length.
  • a part of the bits in the field of the signature information may represent power information, and another part of the bits may represent interleaving information, scrambling information, extension information, or the like.
  • the field of the signature information includes 4 bits, 2 of the 4 bits may represent power information, and the other 2 of the 4 bits may represent interleaved information.
  • all bits of a field of the signature information may represent one or more of power information, interleaving information, scrambling information, extension information, and the like.
  • all the bits of the field of the signature information represent a plurality of power information, interleaved information, scrambled information, or extended information
  • the power information corresponding to the signature information and the interleaved information, scrambled information, or The extended information has a correspondence relationship.
  • the user terminal may receive Radio Resource Control (RRC) signaling, Downlink Control Information (DCI), or Media Access Control (Media Access Control).
  • RRC Radio Resource Control
  • DCI Downlink Control Information
  • Media Access Control Media Access Control
  • MAC Control Element, CE
  • the user terminal may receive the signature information in multiple DCI formats, such as DCI format 0_0 or DCI format 0_1 for PUSCH scheduling, DCI format 2_2 for PDSCH scheduling, and the like.
  • the user terminal determines the transmission power of the user terminal according to the received signature information.
  • the user terminal may be based on the user terminal ’s basic power, the user ’s path loss compensation power, the user terminal ’s compensation and modulation scheme (MCS) based compensation power, and the user terminal ’s uplink channel
  • MCS modulation scheme
  • the compensation power adjusted by the power control determines the transmit power of the user terminal initially.
  • the user terminal may adjust at least one of a base power, a path loss compensation power, an MCS-based compensation power, and an uplink channel power control adjusted compensation power according to the received signature information to finally determine the transmission of the user terminal.
  • the power and the transmission power of the user terminal determined as the signature of the user terminal.
  • the signature information may include power information indicating the information about the transmission power of the user terminal.
  • the power information may indicate adjustment of at least one of a base power of the user terminal, a path loss compensation power of the user terminal, a MCS-based compensation power of the user terminal, and a power control adjustment of an uplink channel of the user terminal. information.
  • the base power may include the nominal power set by the base station for all user terminals in the cell coverage area of the base station and the dedicated power of the user terminal.
  • the power information may indicate adjustment information of the exclusive power of the user terminal, such as an adjustment value indicating the exclusive power of the user terminal.
  • the path loss compensation power may be determined according to a path loss compensation parameter of the user terminal and a downlink path loss of the user terminal.
  • the power information may indicate adjustment information of a road loss compensation parameter of the user terminal, such as indicating an adjustment value of a road loss compensation parameter of the user terminal.
  • the MCS-based compensation power may be determined according to the MCS of the user terminal.
  • the power information may indicate adjustment information of the MCS-based compensation power of the user terminal, such as indicating an adjustment value of the MCS-based compensation power.
  • the compensation power for the power control adjustment of the uplink channel may be determined according to a Transmission Power Control (Transmission Power Control, TPC) command.
  • the power information may indicate adjustment information of the compensation power of the power control adjustment of the uplink channel, such as an adjustment value of the compensation power of the power control adjustment of the uplink channel.
  • the transmission power may also be related to the bandwidth of the physical resources occupied by the user terminal.
  • the compensation power of the transmission power may be set for the number of resource blocks (RBs) occupied by the user terminal.
  • the signature information and the adjustment information of the base power, the adjustment information of the path loss compensation power, the adjustment information of the MCS-based compensation power, and the compensation power of the power control adjustment of the uplink channel may be set.
  • a correspondence relationship between at least one of the adjustment information is adjusted so as to adjust a base power, a path loss compensation power, an MCS-based compensation power, or an uplink channel power control adjusted compensation power.
  • a table may be set, and the table may include multiple values of a field of signature information, and an adjustment value of a base power corresponding to each value, an adjustment value of a road loss compensation power, and an MCS-based compensation power. At least one of an adjustment value and an adjustment value of the compensation power for the power control adjustment of the uplink channel.
  • one table or multiple tables for different situations can be set.
  • the adjustment value of the base power, the path loss compensation power adjustment value, the MCS-based The adjustment value of the compensation power or the adjustment value of the compensation power of the power control adjustment of the uplink channel may be different.
  • the adjustment value of the base power corresponding to the first value of the field of signature information in the first table may be ⁇ 1
  • the adjustment value of the base power may be The adjustment value of the base power corresponding to the first value of the field
  • the adjustment value of the base power corresponding to the first value of the field of the signature information in the third table may be ⁇ 3 , where ⁇ 1 ⁇ ⁇ 2 ⁇ ⁇ 3 .
  • At least one of the base power, the path loss compensation power, the compensation power based on the modulation and coding scheme, and the compensation power for the power control adjustment of the uplink channel may also be determined according to high-level parameters.
  • the adjustment value of the base power may be determined according to a high-level parameter.
  • the table may include the correspondence between the signature information and the adjustment information of the base power; then, the adjustment value of the base power may be further calculated according to the high-level parameters.
  • the method for setting the one or more forms described above may be performed by a communication device, such as a base station, a user terminal, and the like.
  • the communication device may store the determined first table after executing the method of setting the table.
  • the present disclosure is not limited thereto.
  • the method of setting a table may also be performed by a core network device.
  • the core network device may notify the base station or the user terminal of the set table, and then the base station or the user terminal stores the first table.
  • the method of setting a table may not be performed by a communication device or a core network device, but may be performed by a manufacturer before the communication device or the core network device leaves the factory.
  • the form may be a form that has been stored inside the communication device when the communication device is shipped from the factory.
  • the user terminal may determine the adjustment value of the base power based on the signature information, and then determine the adjustment power based on the base power, the adjustment value of the base power, the path loss compensation power, the MCS-based compensation power, and the uplink channel power control adjustment.
  • the transmit power of the user terminal For example, the PUSCH transmission power of the user terminal on the UL BWP (BandWidth Part) of the carrier of the serving cell can be determined by the following equation (1-1):
  • b indicates UL BWP
  • f indicates carrier
  • c indicates serving cell
  • i indicates transmission occasion of PUSCH
  • j indicates index of parameter setting
  • q d indicates user terminal used in calculating downlink path loss.
  • Reference signal index indicates the index of the PUSCH power control adjustment state
  • m indicates the signature information of the user terminal.
  • P CMAX, f, c (i) represents the maximum transmission power of the UE on the carrier f of the serving cell c at the PUSCH transmission timing i.
  • P CMAX, f, c (i) may be the maximum output power of the UE specified in 3GPP TS38.101-1 and TS38101-2.
  • the user terminal may set its own maximum output power.
  • the set UE maximum output power P CMAX, f, c can be defined as a reference point for a given transmitter branch corresponding to a reference point in each receiver branch It is available.
  • the set UE maximum output power P CMAX, f, c can be defined as a value corresponding to a reference point of a high-level filtered reference signal received power (RSRP) measurement in each receiver branch.
  • RSRP high-level filtered reference signal received power
  • Po_PUSCH, b, f, c (j) represents the base power of the user terminal.
  • Po_PUSCH, b, f, c (j) may be composed of components Po_NOMINAL_PUSCH, f, c (j) and components Po_UE_PUSCH, b, f, c (j), where the components Po_NOMINAL_PUSCH, f, c ( j) represents the nominal power set by the base station for all user terminals in the cell coverage area of the base station, and the components Po_UE_PUSCH, b, f, c (j) represent the exclusive power of the user terminal, j ⁇ ⁇ 0, 1, ... , J-1 ⁇ and is a natural number.
  • the user terminal may determine the first nominal power of the user terminal according to whether the first high-level parameter is provided.
  • the first high-level parameter may be PO-PUSCH- AlphaSet.
  • preambleReceivedTargetPower for example, TS38.321
  • the exclusive power of the user terminal may not be 0, that is, Po_UE_PUSCH, f, c (0) ⁇ 0.
  • the nominal power set by the base station for all user terminals within the cell coverage area of the base station and the user terminal's exclusive power can be determined in different ways. power.
  • Po_NOMINAL_PUSCH, f, c (1) can be provided by the higher-level parameter p0-NominalWithoutGrant , And Po_UE_PUSCH, b, f, c (1) in the ConfiguredGrantConfig provided by the index P0-PUSCH-AlphaSetId from a set of high-level parameters P0-PUSCH-AlphaSet to the UL BWP b of the carrier f serving the cell c
  • the high-level parameter p0 obtained by P0-PUSCH-Alpha is provided.
  • the values of P o_NOMINAL_PUSCH, f, c (j) applicable to all j ⁇ S J can be used by
  • the high-level parameters p0-NominalWithGrant for each carrier f of the serving cell c are provided, and a set of Po_UE_PUSCH, b, f, c (j) values can be used for each set of UL BWP b of the carrier f of the serving cell c
  • a set of high-level parameters p0 in the P0-PUSCH-AlphaSet indicated by the high-level parameter p0-PUSCH-AlphaSetId is provided.
  • Po_NOMA_PUSCH, b, f, c (j, m) represents an adjustment value of the base power.
  • Po_NOMA_PUSCH, b, f, c (j, m) may be determined according to the signature information m received in step S101.
  • Po_NOMA_PUSCH, b, f, c (j, m) may represent an adjustment value of the exclusive power of the user terminal.
  • Po_NOMA_PUSCH, b, f, c (j, m) can be rewritten as Po_UENOMA_PUSCH, b, f, c (j, m).
  • a correspondence relationship between the signature information and the adjustment value of the exclusive power of the user terminal may be set. Accordingly, the user terminal may determine Po_NOMA_PUSCH, b, f, c (j, m) according to a correspondence relationship between m and Po_NOMA_PUSCH, b, f, c (j, m).
  • the user terminal may determine the value of the adjustment value of the first nominal power according to the first high-level parameter.
  • the value of the adjustment value of the first nominal power may be set in the ConfiguredGrantConfig provided by the index P0-PUSCH-AlphaSetId from the set of high-level parameters P0-PUSCH-AlphaSet to the UL BWP of the carrier f serving the cell c
  • the high-level parameter p0 obtained by P0-PUSCH-Alpha is provided.
  • the adjustment value of the first nominal power may be provided by a set of high-level parameters p0 in the P0-PUSCH-AlphaSet indicated by each set of high-level parameters p0-PUSCH-AlphaSetId of the UL BWP b of the serving cell c. .
  • Equation (1-1) Represents the compensation power determined according to the number of RBs occupied by the user terminal. Represents the bandwidth for PUSCH resource allocation, which is expressed as the number of resource blocks at the PUSCH transmission opportunity i on the UL BWP b of the carrier f of the serving cell c.
  • ⁇ represents a subcarrier interval setting.
  • ⁇ b, f, c (j) ⁇ PL b, f, c (q d ) represents a path loss compensation power.
  • PL b, f, c (q d ) may be a downlink path loss estimate in dB form calculated by a user terminal using a reference signal index q d for DL BWP.
  • the user terminal may use the difference between the reference signal power and the high-level filtered RSRP to determine PL b, f, c (q d ).
  • the user terminal may determine the value of ⁇ b, f, c (j) through different high-level parameters. For example, the user terminal may determine the value of ⁇ b, f, c (j) through the first high-level parameter.
  • ⁇ b, f, c (1) may be provided with an index P0-PUSCH-AlphaSetId from a set of high-level parameters P0-PUSCH-AlphaSet from UL BWP b to carrier f for serving cell c.
  • the high-level parameter alpha provided by P0-PUSCH-Alpha in ConfiguredGrantConfig is provided.
  • the value of a set of ⁇ b, f, c (j) applicable to all j ⁇ S J may be indicated by each set of higher layer parameters p0-PUSCH-AlphaSetId of the UL BWP b for the carrier f of the serving cell c
  • a set of high-level parameters alpha in P0-PUSCH-AlphaSet is provided.
  • the user terminal may determine the value of ⁇ b, f, c (j) through the second high-level parameter.
  • the second high-level parameter may be the high-level parameter msg3-Alpha.
  • ⁇ b, f, c (0) can be the value of the high-level parameter msg3-Alpha.
  • ⁇ TF, b, f, c (i) represents the MCS-based compensation power at the transmission timing i of the PUSCH.
  • the user terminal may determine the value of ⁇ TF, b, f, c (i) through the third high-level parameter.
  • the third higher layer parameter may be a higher layer parameter deltaMCS for each UL BWP b of each carrier f of the serving cell c.
  • f b, f, c (i, l) represents the compensation power of the power control adjustment of the uplink channel at the transmission timing i of the PUSCH.
  • the compensation power of the power control adjustment of the uplink channel at the PUSCH transmission timing i may include the uplink at the transmission timing i (e.g., the last transmission timing i last of the PUSCH transmission timing i) of the PUSCH transmission timing i.
  • the compensation power and correction value of the power control adjustment of the link channel can be determined by the following equation (1-2):
  • f b, f, c (i last , l) represents the compensation power for the power control adjustment of the uplink channel at the last transmission opportunity i last of PUSCH transmission timing i PUSCH
  • b, f, c ( i last , i, K PUSCH , 1) represents the correction value
  • K PUSCH represents the UL of the carrier f of the serving cell c after the last symbol of the corresponding PDCCH and before the first symbol sent by the PUSCH Number of symbols of BWP b.
  • equation (1-1) the base power and the adjustment value of the base power are expressed as two separate components, however, the present disclosure is not limited thereto.
  • the adjustment value of the base power may be used as a component of the base power.
  • equation (1-1) can be rewritten as the following equation (1-3):
  • Po_PUSCH, b, f, c (j, m) can be composed of components Po_NOMINAL_PUSCH, f, c (j), components Po_UE_PUSCH, b, f, c (j), and components Po_UENOMA_PUSCH, b, f, c (j, m).
  • the user terminal may further determine the user terminal ’s Transmit power.
  • the PUSCH transmission power of the user terminal on the UL BWP of the carrier of the serving cell can be determined by the following equation (2-1):
  • ⁇ b, f, c (m) ⁇ PL b, f, c (q d ) represents the adjustment value of the path loss compensation power.
  • ⁇ b, f, c (m) may be determined based on the signature information m received in step S101.
  • ⁇ b, f, c (m) can be the adjustment value of the road loss compensation parameter.
  • a correspondence relationship between the signature information and the adjustment value of the road loss compensation parameter may be set. Accordingly, the user terminal may determine ⁇ b, f, c (m) according to a correspondence relationship between m and ⁇ b, f, c (m).
  • the user terminal may determine the value of the adjustment value of the road loss compensation parameter through the first high-level parameter.
  • the value of ⁇ b, f, c (m) may be a set of high-level parameters in the P0-PUSCH-AlphaSet indicated by each set of high-level parameters p0-PUSCH-AlphaSetId of the UL BWP b for the carrier f of the serving cell c. provided by alpha.
  • Equation (2-1) the road loss compensation power and the adjustment value of the road loss compensation power are represented as two separate components, however, the present disclosure is not limited thereto.
  • the adjustment value of the road loss compensation power may be used as a component of the road loss compensation power.
  • equation (2-1) can be rewritten as the following equation (2-2):
  • ⁇ b, f, c (j, m) represents the adjusted path loss compensation parameters.
  • the user terminal may further determine the compensation power based on the base power, the path loss compensation power, the MCS-based compensation power, the MCS-based compensation power adjustment value, and the power control adjustment of the uplink channel.
  • the transmit power of the user terminal For example, the PUSCH transmission power of the user terminal on the UL BWP of the carrier of the serving cell can be determined by the following equation (3-1):
  • equation (3-1) is the same in some details as equation (1-1) described above, a detailed description of the same content is omitted here for simplicity.
  • ⁇ NOMA, b, f, c (i, m) represents an adjustment value of the compensation power based on MCS.
  • ⁇ NOMA, b, f, c (i, m) may be determined based on the signature information m received in step S101.
  • a correspondence relationship between the signature information and the adjustment value of the MCS-based compensation power may be set.
  • the user terminal may determine ⁇ NOMA, b, f, c (i, m) according to a correspondence relationship between m and ⁇ NOMA, b, f, c (i, m).
  • equation (3-1) the MCS-based compensation power and the adjustment value of the MCS-based compensation power are represented as two separate components, however, the present disclosure is not limited thereto.
  • the adjustment value of the MCS-based compensation power may be used as a component of the MCS-based compensation power.
  • equation (3-1) can be rewritten as the following equation (3-2):
  • ⁇ TF, b, f, c (i, m) may be composed of components ⁇ TF, b, f, c (i) and components ⁇ NOMA, b, f, c (i, m).
  • ⁇ TF, b, f, c (i, m) may also be composed of only the components ⁇ NOMA, b, f, c (i, m).
  • ⁇ TF, b, f, c (i, m) may be equal to ⁇ NOMA, b, f, c (i, m).
  • the user terminal may further adjust the compensation power adjusted based on the base power, the path loss compensation power, the MCS-based compensation power, the uplink channel power control adjustment, and the uplink channel power control adjustment.
  • the adjustment value of the compensation power determines the transmission power of the user terminal.
  • the PUSCH transmission power of the user terminal on the UL BWP of the carrier of the serving cell can be determined by the following equation (4-1):
  • f NOMA, b, f, c (i, l, m) represents an adjustment value of the compensation power of the power control adjustment of the uplink channel.
  • f NOMA, b, f, c (i, l, m) may be determined based on the signature information m received in step S101.
  • a correspondence relationship between the signature information and the adjustment value of the compensation power for the power control adjustment of the uplink channel may be set.
  • the user terminal may determine f NOMA, b, f, c (i, l, m) according to a correspondence relationship between m and f NOMA, b, f, c (i, l, m).
  • equation (4-1) the compensation value of the power control adjustment of the uplink channel and the adjustment value of the compensation power of the power control adjustment of the uplink channel are represented as two separate components, however, the present disclosure Not limited to this.
  • the adjustment value of the compensation power of the power control adjustment of the uplink channel may be used as a component of the compensation power of the power control adjustment of the uplink channel.
  • equation (4-1) can be rewritten as the following equation (4-2):
  • f b, f, c (i, l, m) represents the compensation power of the power control adjustment of the adjusted uplink channel.
  • the correction value may be adjusted accordingly.
  • the correction value may be referred to as a TPC command, which may be included in a DCI format 0_0 or a DCI format 0_1 for scheduling PUSCH transmission opportunity i on the UL BWP of the carrier f of the serving cell c.
  • the correction value can also be jointly encoded with other TPC commands in DCI format 2_2.
  • the first column represents the value of the TPC command field
  • the second column represents the accumulated delta PUSCH, b, f, c
  • the third column represents the absolute delta PUSCH, b, f, c .
  • equations that determine the transmit power of the user terminal involve only base power, path loss compensation power, encoding and modulation schemes An adjustment value of one of the compensation power and the compensation power for the power control adjustment of the uplink channel
  • equation for determining the transmit power of the user terminal may involve compensation for the base power and path loss Adjustment values for two or more of power, compensation power based on coding and modulation schemes, and compensation power for power control adjustments of uplink channels.
  • the user terminal may set multiple power update times to update the transmission power of the PUSCH.
  • the user terminal may update the transmission power of the PUSCH at the start time and the intermediate time of the PUSCH transmission.
  • the signature information m may be an index j set by a parameter setting, a reference signal index q d used by a user terminal when calculating a downlink path loss, and a PUSCH power control adjustment state Any item in index l.
  • the value of the signature information m may be the same as the value of the index j set by the parameter setting, the reference signal index q d used by the user terminal when calculating the downlink path loss, or the index l of the PUSCH power control adjustment state.
  • user terminals having the same transmission power in a communication system can be divided into a group of user terminals. Multiple user terminals within the same group of user terminals may have at least partially the same signature. For example, multiple user terminals in the same group of user terminals may have the same transmission power, and may have different extension modes, interleaving modes, or scrambling modes.
  • the signature information of the user terminal has a direct relationship with the power control of the user terminal. Therefore, when power control is performed on multiple user terminals, the communication system may consider the multiple user terminals. Signature information to reduce interference between multiple user terminals, thereby making the performance of the communication system better.
  • the range of the existing power control parameters is extended, so that it can be adapted to a NOMA system.
  • FIG. 2 is a flowchart of a method 200 for uplink power control performed by a base station according to an embodiment of the present disclosure. Because the method 200 is the same as some of the details of the method 100 described above with reference to FIG. 1, a detailed description of the same content is omitted here for simplicity.
  • the base station determines signature information for a user terminal.
  • the signature may be a multiple access (MA) signature, such as the MA signature specified in 3GPP TR 38.812.
  • the signature of the user terminal may be one or more of the user terminal's transmission power, interleaving mode, scrambling mode, and extension mode.
  • MA multiple access
  • the signature information may be a signature parameter.
  • the user terminal may determine the signature of the user terminal according to the signature parameters.
  • the signature information may include power information that indicates information about the transmission power of the user terminal so that the user terminal determines its own transmission power.
  • the signature information may include other information.
  • the signature information may further include interleaving information indicating an interleaving manner of the user terminal, so that the user terminal determines its own interleaving manner.
  • the signature information may further include scrambling information indicating a scrambling mode of the user terminal, so that the user terminal determines its own scrambling mode.
  • the signature information may further include extension information indicating an extension mode of the user terminal, so that the user terminal determines its own extension mode.
  • the signature information is not limited to including the power information, interleaving information, scrambling information, and extension information listed here, and may also include information indicating other operations performed on the data when the user terminal sends the data.
  • the base station sends the determined signature information to the user terminal.
  • the base station may control by receiving Radio Resource Control (RRC) signaling, Downlink Control Information (DCI) or Media Access Control (MAC) control.
  • RRC Radio Resource Control
  • DCI Downlink Control Information
  • MAC Media Access Control
  • Elements (Control, Element, CE) send signature information.
  • the base station may send signature information in multiple DCI formats, such as DCI format 0_0 or DCI format 0_1 for PUSCH scheduling, DCI format 2_2 for PDSCH scheduling, and the like.
  • the signature information of the user terminal has a direct relationship with the power control of the user terminal. Therefore, when power control is performed on multiple user terminals, the communication system may consider the multiple user terminals. The signature information reduces interference between multiple user terminals, thereby making the performance of the communication system better.
  • the range of the existing power control parameters is extended, so that it can be adapted to a NOMA system.
  • FIG. 3 is a schematic structural diagram of a user terminal 300 according to an embodiment of the present disclosure. Since the function of the user terminal 300 is the same as the details of the method described above with reference to FIG. 1, a detailed description of the same content is omitted here for simplicity.
  • the user terminal 300 includes a receiving unit 310 configured to receive signature information for the user terminal from a base station, where the signature information includes power information, and the power information indicates information about the user. Information on the transmission power of the terminal; and a control unit 320 configured to determine the transmission power of the user terminal based on the received signature information.
  • the user terminal 300 may include other components, however, since these components are not related to the content of the embodiments of the present disclosure, their illustration and description are omitted here.
  • the signature information may be a signature parameter.
  • the user terminal may determine the signature of the user terminal according to the signature parameters.
  • the signature information may include power information that indicates information about the transmission power of the user terminal so that the user terminal determines its own transmission power.
  • the signature information may include other information.
  • the signature information may further include interleaving information indicating an interleaving manner of the user terminal, so that the user terminal determines its own interleaving manner.
  • the signature information may further include scrambling information indicating a scrambling mode of the user terminal, so that the user terminal determines its own scrambling mode.
  • the signature information may further include extension information indicating an extension mode of the user terminal, so that the user terminal determines its own extension mode.
  • the signature information is not limited to including the power information, interleaving information, scrambling information, and extension information listed here, and may also include information indicating other operations performed on the data when the user terminal sends the data.
  • the signature information may be set to a field having a predetermined bit length.
  • a part of the bits in the field of the signature information may represent power information, and another part of the bits may represent interleaving information, scrambling information, extension information, or the like.
  • the field of the signature information includes 4 bits, 2 of the 4 bits may represent power information, and the other 2 of the 4 bits may represent interleaved information.
  • all bits of a field of the signature information may represent one or more of power information, interleaving information, scrambling information, extension information, and the like.
  • all the bits of the field of the signature information represent a plurality of power information, interleaved information, scrambled information, or extended information
  • the power information corresponding to the signature information and the interleaved information, scrambled information, or The extended information has a correspondence relationship.
  • the receiving unit 310 may receive Radio Resource Control (RRC) signaling, Downlink Control Information (DCI), or Media Access Control (Media Access Control). (MAC) control element (Control Element, CE) and so on to receive signature information.
  • RRC Radio Resource Control
  • DCI Downlink Control Information
  • MAC Media Access Control
  • CE Media Access Control
  • the user terminal may receive the signature information in multiple DCI formats, such as DCI format 0_0 or DCI format 0_1 for PUSCH scheduling, DCI format 2_2 for PDSCH scheduling, and the like.
  • control unit 320 may be based on the base power of the user terminal, the path loss compensation power of the user terminal, the compensation power of the user terminal based on the Modulation and Coding Scheme (MCS), and the uplink of the user terminal.
  • the compensation power for the power control adjustment of the channel determines the transmit power of the user terminal initially.
  • control unit 320 may adjust at least one of a base power, a path loss compensation power, an MCS-based compensation power, and an uplink channel power control adjusted compensation power according to the received signature information, so as to finally determine the user terminal ’s
  • the transmission power and the finally determined transmission power of the user terminal are used as the signature of the user terminal.
  • the signature information may include power information indicating the information about the transmission power of the user terminal.
  • the power information may indicate adjustment of at least one of a base power of the user terminal, a path loss compensation power of the user terminal, a MCS-based compensation power of the user terminal, and a power control adjustment of an uplink channel of the user terminal. information.
  • the base power may include the nominal power set by the base station for all user terminals in the cell coverage area of the base station and the dedicated power of the user terminal.
  • the power information may indicate adjustment information of the exclusive power of the user terminal, such as an adjustment value indicating the exclusive power of the user terminal.
  • the path loss compensation power may be determined according to a path loss compensation parameter of the user terminal and a downlink path loss of the user terminal.
  • the power information may indicate adjustment information of a road loss compensation parameter of the user terminal, such as indicating an adjustment value of a road loss compensation parameter of the user terminal.
  • the MCS-based compensation power may be determined according to the MCS of the user terminal.
  • the power information may indicate adjustment information of the MCS-based compensation power of the user terminal, such as indicating an adjustment value of the MCS-based compensation power.
  • the compensation power for the power control adjustment of the uplink channel may be determined according to a Transmission Power Control (Transmission Power Control, TPC) command.
  • the power information may indicate adjustment information of the compensation power of the power control adjustment of the uplink channel, such as an adjustment value of the compensation power of the power control adjustment of the uplink channel.
  • the user terminal ’s in addition to the user terminal ’s base power, the user terminal ’s path loss compensation power, the user terminal ’s MCS-based compensation power, and the user terminal ’s uplink channel power control adjusted compensation power, the user terminal ’s
  • the transmission power may also be related to the bandwidth of the physical resources occupied by the user terminal.
  • the compensation power of the transmission power may be set for the number of resource blocks (RBs) occupied by the user terminal.
  • the signature information and the adjustment information of the base power, the adjustment information of the path loss compensation power, the adjustment information of the MCS-based compensation power, and the compensation power of the power control adjustment of the uplink channel may be set.
  • a correspondence relationship between at least one of the adjustment information is adjusted so as to adjust a base power, a path loss compensation power, an MCS-based compensation power, or an uplink channel power control adjusted compensation power.
  • a table may be set, and the table may include multiple values of a field of signature information, and an adjustment value of a base power corresponding to each value, an adjustment value of a road loss compensation power, and an MCS-based compensation power. At least one of an adjustment value and an adjustment value of the compensation power for the power control adjustment of the uplink channel.
  • the user terminal may determine the adjustment value of the base power based on the signature information, and then determine the adjustment power based on the base power, the adjustment value of the base power, the path loss compensation power, the MCS-based compensation power, and the power control adjustment of the uplink channel.
  • the transmit power of the user terminal For example, the PUSCH transmission power of the user terminal on the UL BWP (BandWidth Part) of the carrier of the serving cell can be determined by the above equation (1-1).
  • P CMAX, f, c (i) represents the maximum transmission power of the UE on the carrier f of the serving cell c at the PUSCH transmission timing i.
  • P CMAX, f, c (i) may be the maximum output power of the UE specified in 3GPP TS38.101-1 and TS38101-2.
  • the control unit 320 may set its own maximum output power.
  • the set UE maximum output power P CMAX, f, c can be defined as a reference point for a given transmitter branch corresponding to a reference point in each receiver branch It is available.
  • the set UE maximum output power P CMAX, f, c can be defined as a value corresponding to a reference point of a high-level filtered reference signal received power (RSRP) measurement in each receiver branch.
  • RSRP high-level filtered reference signal received power
  • Po_PUSCH, b, f, c (j) represents the base power of the user terminal.
  • Po_PUSCH, b, f, c (j) may be composed of components Po_NOMINAL_PUSCH, f, c (j) and components Po_UE_PUSCH, b, f, c (j), where the components Po_NOMINAL_PUSCH, f, c ( j) represents the nominal power set by the base station for all user terminals in the cell coverage area of the base station, and the components Po_UE_PUSCH, b, f, c (j) represent the exclusive power of the user terminal, j ⁇ ⁇ 0, 1, ... , J-1 ⁇ and is a natural number.
  • the exclusive power of the user terminal may not be 0, that is, Po_UE_PUSCH, f, c (0) ⁇ 0, then Po_PUSCH, b, f, c (j) is equal to The sum of the components Po_NOMINAL_PUSCH, f, c (j) and the components Po_UE_PUSCH, b, f, c (j).
  • Po_NOMA_PUSCH, b, f, c (j, m) represents an adjustment value of the base power.
  • Po_NOMA_PUSCH, b, f, c (j, m) may be determined according to the signature information m received in step S101.
  • Po_NOMA_PUSCH, b, f, c (j, m) may represent an adjustment value of the exclusive power of the user terminal.
  • Po_NOMA_PUSCH, b, f, c (j, m) can be rewritten as Po_UENOMA_PUSCH, b, f, c (j, m).
  • a correspondence relationship between the signature information and the adjustment value of the exclusive power of the user terminal may be set. Accordingly, the user terminal may determine Po_NOMA_PUSCH, b, f, c (j, m) according to a correspondence relationship between m and Po_NOMA_PUSCH, b, f, c (j, m).
  • Equation (1-1) Represents the compensation power determined according to the number of RBs occupied by the user terminal. Represents the bandwidth for PUSCH resource allocation, which is expressed as the number of resource blocks at the PUSCH transmission opportunity i on the UL BWP b of the carrier f of the serving cell c.
  • ⁇ represents a subcarrier interval setting.
  • ⁇ b, f, c (j) ⁇ PL b, f, c (q d ) represents a path loss compensation power.
  • PL b, f, c (q d ) may be a downlink path loss estimate in dB form calculated by a user terminal using a reference signal index q d for DL BWP.
  • the user terminal may use the difference between the reference signal power and the high-level filtered RSRP to determine PL b, f, c (q d ).
  • the second high-level parameter may be the high-level parameter msg3-Alpha.
  • ⁇ TF, b, f, c (i) represents the MCS-based compensation power at the transmission timing i of the PUSCH.
  • the user terminal may determine the value of ⁇ TF, b, f, c (i) through the third high-level parameter.
  • the third higher layer parameter may be a higher layer parameter deltaMCS for each UL BWP b of each carrier f of the serving cell c.
  • f b, f, c (i, l) represents the compensation power of the power control adjustment of the uplink channel at the transmission timing i of the PUSCH.
  • the compensation power of the power control adjustment of the uplink channel at the PUSCH transmission timing i may include the uplink at the transmission timing i (e.g., the last transmission timing i last of the PUSCH transmission timing i) of the PUSCH transmission timing i.
  • the compensation power and correction value of the power control adjustment of the link channel can be determined by the above equation (1-2).
  • equation (1-1) the base power and the adjustment value of the base power are expressed as two separate components, however, the present disclosure is not limited thereto.
  • the adjustment value of the base power may be used as a component of the base power.
  • equation (1-1) can be rewritten as equation (1-3) above, where Po_PUSCH, b, f, c (j, m) can be composed of components Po_NOMINAL_PUSCH, f, c (j), components Po_UE_PUSCH, b, f, c (j), and components Po_UENOMA_PUSCH, b, f, c (j, m).
  • the user terminal may further determine the user terminal ’s power based on the base power, the path loss compensation power, the path loss compensation power adjustment value, the MCS-based compensation power, and the compensation power adjusted by the power control of the uplink channel. Transmit power.
  • the PUSCH transmission power of the user terminal on the UL BWP of the carrier of the serving cell can be determined by the above equation (2-1).
  • equation (2-1) is the same as some details of equation (1-1) described above, a detailed description of the same content is omitted here for simplicity.
  • ⁇ b, f, c (m) ⁇ PL b, f, c (q d ) represents the adjustment value of the path loss compensation power.
  • ⁇ b, f, c (m) may be determined based on the signature information m received in step S101.
  • ⁇ b, f, c (m) can be the adjustment value of the road loss compensation parameter.
  • a correspondence relationship between the signature information and the adjustment value of the road loss compensation parameter may be set. Accordingly, the user terminal may determine ⁇ b, f, c (m) according to a correspondence relationship between m and ⁇ b, f, c (m).
  • Equation (2-1) the road loss compensation power and the adjustment value of the road loss compensation power are represented as two separate components, however, the present disclosure is not limited thereto.
  • the adjustment value of the road loss compensation power may be used as a component of the road loss compensation power.
  • equation (2-1) can be rewritten as equation (2-2) above, where ⁇ b, f, c (j, m) represents the adjusted path loss compensation parameter.
  • the user terminal may further determine the compensation power based on the base power, the path loss compensation power, the MCS-based compensation power, the MCS-based compensation power adjustment value, and the power control adjustment of the uplink channel.
  • the transmit power of the user terminal For example, the PUSCH transmission power of the user terminal on the UL BWP of the carrier of the serving cell can be determined by the above equation (3-1).
  • equation (3-1) is the same in some details as equation (1-1) described above, a detailed description of the same content is omitted here for simplicity.
  • ⁇ NOMA, b, f, c (i, m) represents an adjustment value of the compensation power based on MCS.
  • ⁇ NOMA, b, f, c (i, m) may be determined based on the signature information m received in step S101.
  • a correspondence relationship between the signature information and the adjustment value of the MCS-based compensation power may be set.
  • the user terminal may determine ⁇ NOMA, b, f, c (i, m) according to a correspondence relationship between m and ⁇ NOMA, b, f, c (i, m).
  • equation (3-1) the MCS-based compensation power and the adjustment value of the MCS-based compensation power are represented as two separate components, however, the present disclosure is not limited thereto.
  • the adjustment value of the MCS-based compensation power may be used as a component of the MCS-based compensation power.
  • equation (3-1) can be rewritten as equation (3-2) above, where ⁇ TF, b, f, c (i, m) can be determined by the components ⁇ TF, b, f, c (i) and components ⁇ NOMA, b, f, c (i, m).
  • ⁇ TF, b, f, c (i, m) may also be composed of only the components ⁇ NOMA, b, f, c (i, m).
  • ⁇ TF, b, f, c (i, m) may be equal to ⁇ NOMA, b, f, c (i, m).
  • the user terminal may further adjust the compensation power adjusted based on the base power, the path loss compensation power, the MCS-based compensation power, the uplink channel power control adjustment, and the uplink channel power control adjustment.
  • the adjustment value of the compensation power determines the transmission power of the user terminal.
  • the PUSCH transmission power of the user terminal on the UL BWP of the carrier of the serving cell can be determined by the above equation (4-1).
  • f NOMA, b, f, c (i, l, m) represents an adjustment value of the compensation power of the power control adjustment of the uplink channel.
  • f NOMA, b, f, c (i, l, m) may be determined based on the signature information m received in step S101.
  • a correspondence relationship between the signature information and the adjustment value of the compensation power for the power control adjustment of the uplink channel may be set.
  • the user terminal may determine f NOMA, b, f, c (i, l, m) according to a correspondence relationship between m and f NOMA, b, f, c (i, l, m).
  • equation (4-1) the compensation value of the power control adjustment of the uplink channel and the adjustment value of the compensation power of the power control adjustment of the uplink channel are represented as two separate components. Not limited to this.
  • the adjustment value of the compensation power of the power control adjustment of the uplink channel may be used as a component of the compensation power of the power control adjustment of the uplink channel.
  • equation (4-1) can be rewritten as equation (4-2) above, where f b, f, c (i, l, m) represents the adjusted uplink channel
  • the power control adjusts the compensation power.
  • the correction value may be adjusted accordingly.
  • the correction value may be referred to as a TPC command, which may be included in a DCI format 0_0 or a DCI format 0_1 for scheduling PUSCH transmission opportunity i on the UL BWP of the carrier f of the serving cell c.
  • the correction value can also be jointly encoded with other TPC commands in DCI format 2_2.
  • the correspondence between the value of the TPC command field and the correction value can be set, as shown in Table 1 above.
  • the first column represents the value of the TPC command field
  • the second column represents the accumulated delta PUSCH, b, f, c
  • the third column represents the absolute delta PUSCH, b, f, c .
  • equations that determine the transmit power of the user terminal involve only base power, path loss compensation power, encoding and modulation schemes An adjustment value of one of the compensation power and the compensation power for the power control adjustment of the uplink channel
  • equation for determining the transmit power of the user terminal may involve compensation for the base power and path loss Adjustment values for two or more of power, compensation power based on coding and modulation schemes, and compensation power for power control adjustments of uplink channels.
  • control unit 320 may set a plurality of power update times to update the transmission power of the PUSCH. For example, the control unit 320 may update the transmission power of the PUSCH at the start time and the intermediate time of the PUSCH transmission.
  • the signature information m may be an index j set by a parameter setting, a reference signal index q d used by a user terminal when calculating a downlink path loss, and a state of a PUSCH power control adjustment state. Any item in index l.
  • the value of the signature information m may be the same as the value of the index j set by the parameter setting, the reference signal index q d used by the user terminal when calculating the downlink path loss, or the index l of the PUSCH power control adjustment state.
  • user terminals having the same transmission power in a communication system can be divided into a group of user terminals. Multiple user terminals within the same group of user terminals may have at least partially the same signature. For example, multiple user terminals in the same group of user terminals may have the same transmission power, and may have different extension modes, interleaving modes, or scrambling modes.
  • the signature information of the user terminal has a direct relationship with the power control of the user terminal. Therefore, when performing power control on multiple user terminals, the communication system may consider the signature information of the multiple user terminals. The interference between multiple user terminals is reduced, so that the performance of the communication system is better. In addition, through the user terminal in this embodiment, the range of the existing power control parameters is extended, so that it can be adapted to a NOMA system.
  • FIG. 4 is a schematic structural diagram of a base station 400 according to an embodiment of the present disclosure. Since the function of the base station 400 is the same as the details of the method described above with reference to FIG. 2, a detailed description of the same content is omitted here for simplicity.
  • the base station 400 includes a control unit 410 configured to determine signature information for a user terminal, where the signature information includes power information, and the power information indicates information about a transmission power of the user terminal. Information; and a sending unit 420 configured to send the determined signature information to the user terminal.
  • the base station 400 may include other components. However, since these components are not related to the content of the embodiment of the present disclosure, the illustration and description thereof are omitted here.
  • the signature information may be a signature parameter.
  • the user terminal may determine the signature of the user terminal according to the signature parameters.
  • the signature information may include power information that indicates information about the transmission power of the user terminal so that the user terminal determines its own transmission power.
  • the signature information may include other information.
  • the signature information may further include interleaving information indicating an interleaving manner of the user terminal, so that the user terminal determines its own interleaving manner.
  • the signature information may further include scrambling information indicating a scrambling mode of the user terminal, so that the user terminal determines its own scrambling mode.
  • the signature information may further include extension information indicating an extension mode of the user terminal, so that the user terminal determines its own extension mode.
  • the signature information is not limited to including the power information, interleaving information, scrambling information, and extension information listed here, and may also include information indicating other operations performed on the data when the user terminal sends the data.
  • the sending unit 420 may receive radio resource control (Radio Resource Control (RRC)) signaling, downlink control information (DCI)), or media access control (Media Access Control, MAC).
  • RRC Radio Resource Control
  • DCI Downlink Control Information
  • MAC media access control
  • Control element (CE) sends signature information.
  • the sending unit 420 may send the signature information in multiple DCI formats, such as DCI format 0_0 or DCI format 0_1 for PUSCH scheduling, DCI format 2_2 for PDSCH scheduling, and the like.
  • the signature information of the user terminal has a direct relationship with the power control of the user terminal. Therefore, when performing power control on multiple user terminals, the communication system can consider the signature information of the multiple user terminals, reducing The interference between multiple user terminals is small, so that the performance of the communication system is better.
  • the range of the existing power control parameters is extended, so that it can be adapted to a NOMA system.
  • each functional block may be implemented by one device that is physically and / or logically combined, and two or more devices that are physically and / or logically separated may be directly and / or indirectly (for example, (Wired and / or wireless) connection to achieve by the above multiple devices.
  • a device such as a first communication device, a second communication device, a flying user terminal, or the like
  • a device may function as a computer that executes processing of the wireless communication method of the present disclosure.
  • FIG. 5 is a schematic diagram of a hardware structure of a device 500 (base station or user terminal) according to an embodiment of the present disclosure.
  • the above-mentioned device 500 may be configured as a computer device that physically includes a processor 510, a memory 520, a memory 530, a communication device 540, an input device 550, an output device 560, a bus 570, and the like.
  • the hardware structure of the user terminal and the base station may include one or more devices shown in the figure, or may not include some devices.
  • processor 510 For example, only one processor 510 is shown, but it may be a plurality of processors. In addition, processing may be performed by one processor, or processing may be performed by more than one processor simultaneously, sequentially, or by other methods. In addition, the processor 510 may be installed by more than one chip.
  • Each function of the device 500 is realized, for example, by reading predetermined software (program) into hardware such as the processor 510 and the memory 520, so that the processor 510 performs calculations and controls communication performed by the communication device 540. And control reading and / or writing of data in the memory 520 and the memory 530.
  • predetermined software program
  • the processor 510 performs calculations and controls communication performed by the communication device 540.
  • control reading and / or writing of data in the memory 520 and the memory 530.
  • the processor 510 controls, for example, the entire computer by operating an operating system.
  • the processor 510 may be composed of a central processing unit (CPU, Central Processing Unit) including an interface with a peripheral device, a control device, a computing device, a register, and the like.
  • CPU Central Processing Unit
  • the foregoing determination unit, adjustment unit, and the like may be implemented by the processor 510.
  • the processor 510 reads out a program (program code), software modules, data, and the like from the memory 530 and / or the communication device 540 to the memory 520, and executes various processes according to them.
  • a program program code
  • the program a program that causes a computer to execute at least a part of the operations described in the above embodiments can be adopted.
  • the determination unit of the user terminal 500 may be implemented by a control program stored in the memory 520 and operated by the processor 510, and may also be implemented similarly for other functional blocks.
  • the memory 520 is a computer-readable recording medium, for example, a read-only memory (ROM, Read Only Memory), a programmable read-only memory (EPROM, Erasable Programmable ROM), an electrically programmable read-only memory (EEPROM, Electrically EPROM), It is constituted by at least one of a random access memory (RAM, Random Access Memory) and other appropriate storage media.
  • the memory 520 may also be referred to as a register, a cache, a main memory (main storage device), and the like.
  • the memory 520 may store an executable program (program code), a software module, and the like for implementing the method according to an embodiment of the present disclosure.
  • the memory 530 is a computer-readable recording medium, and may be, for example, a flexible disk, a floppy (registered trademark) disk, a floppy disk, or a magneto-optical disk (for example, a CD-ROM (Compact Disc)). Digital versatile disc, Blu-ray (registered trademark) disc), removable disk, hard drive, smart card, flash memory device (e.g., card, stick, key driver), magnetic stripe, database , Server, or other appropriate storage medium.
  • the memory 530 may also be referred to as an auxiliary storage device.
  • the communication device 540 is hardware (transmitting / receiving equipment) for communicating between computers through a wired and / or wireless network, and is also referred to as a network device, a network controller, a network card, a communication module, and the like.
  • the communication device 540 may include, for example, Frequency Division Duplex (FDD) and / or Time Division Duplex (TDD), and may include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, and the like.
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • the above-mentioned transmitting unit, receiving unit, etc. may be implemented by the communication device 540.
  • the input device 550 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that accepts input from the outside.
  • the output device 560 is an output device (for example, a display, a speaker, and a light emitting diode (LED) lamp) that performs output to the outside.
  • the input device 550 and the output device 560 may have an integrated structure (for example, a touch panel).
  • the devices such as the processor 510 and the memory 520 are connected via a bus 570 for communicating information.
  • the bus 570 may be composed of a single bus, or may be composed of different buses between devices.
  • the base station and user terminal may include a microprocessor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Programmable Logic Device (PLD, Programmable Logic Device), and an on-site Hardware such as a programming gate array (FPGA, Field Programmable Gate Array) can be used to implement part or all of each functional block.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • PLD Programmable Logic Device
  • FPGA Field Programmable Gate Array
  • the processor 510 may be installed by at least one of these pieces of hardware.
  • the channel and / or symbol may also be a signal (signaling).
  • signals can also be messages.
  • the reference signal may also be referred to as RS (Reference Signal), and may also be referred to as a pilot (Pilot), a pilot signal, etc. according to the applicable standard.
  • a component carrier CC, Component Carrier
  • CC Component Carrier
  • the information, parameters, and the like described in this specification may be expressed in absolute values, may be expressed in relative values to a predetermined value, or may be expressed in corresponding other information.
  • radio resources may be indicated by a prescribed index.
  • formulas and the like using these parameters may be different from those explicitly disclosed in the present specification.
  • the information, signals, etc. described in this specification can be represented using any of a variety of different technologies.
  • the data, commands, instructions, information, signals, bits, symbols, chips, etc. that may be mentioned in all the above descriptions can be passed through voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of them. To represent.
  • information, signals, etc. may be output from the upper layer to the lower layer, and / or from the lower layer to the upper layer.
  • Information, signals, etc. can be input or output via multiple network nodes.
  • Information or signals input or output can be stored in a specific place (for example, memory), or can be managed through a management table. Information or signals input or output can be overwritten, updated or supplemented. The output information, signals, etc. can be deleted. The input information, signals, etc. can be sent to other devices.
  • the notification of information is not limited to the methods / embodiments described in this specification, and may be performed by other methods.
  • the notification of information may be through physical layer signaling (for example, Downlink Control Information (DCI), Uplink Control Information (UCI)), upper layer signaling (for example, radio resource control (RRC, Radio Resource Control) signaling, broadcast information (Master Information Block (MIB, Master Information Block), System Information Block (SIB, System Information Block), etc.), Media Access Control (MAC, Medium Access Control) signaling ), Other signals, or a combination thereof.
  • DCI Downlink Control Information
  • UCI Uplink Control Information
  • RRC Radio Resource Control
  • RRC Radio Resource Control
  • MIB Master Information Block
  • SIB System Information Block
  • MAC Medium Access Control
  • L1 / L2 Layer 1 / Layer 2 control information
  • L1 control information L1 control signal
  • RRC signaling may also be referred to as an RRC message.
  • the RRC signaling may be an RRC Connection Setup message, an RRC Connection Reconfiguration message, or the like.
  • the MAC signaling may be notified by, for example, a MAC control unit (MAC CE (Control Element)).
  • notification of prescribed information is not limited to being performed explicitly, and may be performed implicitly (for example, by not performing notification of the prescribed information or by notification of other information).
  • the judgment can be performed by a value (0 or 1) represented by 1 bit, or by a true or false value (boolean value) represented by true or false, or by a numerical comparison ( (For example, comparison with a predetermined value).
  • software is called software, firmware, middleware, microcode, hardware description language, or other names, it should be broadly interpreted as referring to commands, command sets, codes, code segments, program codes, programs, subprograms Programs, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, steps, functions, etc.
  • software, commands, information, etc. may be transmitted or received via a transmission medium.
  • a transmission medium For example, when using wired technology (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL, Digital Subscriber Line), etc.) and / or wireless technology (infrared, microwave, etc.) to send from a website, server, or other remote resource
  • wired technology coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL, Digital Subscriber Line), etc.
  • wireless technology infrared, microwave, etc.
  • system and "network” used in this specification are used interchangeably.
  • BS Base Station
  • eNB Wireless Base Station
  • gNB gNodeB
  • Cell Cell Group
  • Carrier Carrier
  • Component Carrier Such terms are used interchangeably.
  • the base station is sometimes referred to by terms such as fixed station, NodeB, eNodeB (eNB), access point, access point, sending point, receiving point, femto cell, and small cell.
  • a base station can accommodate one or more (eg, three) cells (also called sectors). When a base station accommodates multiple cells, the entire coverage area of the base station can be divided into multiple smaller areas, and each smaller area can also pass through the base station subsystem (for example, a small base station for indoor use (radio remote head (RRH, Remote Radio Head))) to provide communication services.
  • RRH radio remote head
  • the term "cell” or “sector” refers to a part or the whole of the coverage area of a base station and / or a base station subsystem that performs communication services in the coverage.
  • Mobile stations are also sometimes used by those skilled in the art as user stations, mobile units, user units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile user stations, access terminals, mobile terminals, wireless Terminal, remote terminal, handset, user agent, mobile client, client, or some other appropriate term.
  • the wireless base station in this specification may be replaced with a user terminal.
  • a user terminal For example, for a configuration in which communication between a wireless base station and a user terminal is replaced with communication between a plurality of user terminals (D2D, Device-to-Device), each aspect / embodiment of the present disclosure may be applied.
  • the functions of the first communication device or the second communication device in the device 500 described above may be regarded as the functions of the user terminal.
  • the words "up” and “down” can also be replaced with "side”.
  • the uplink channel may be replaced with a side channel.
  • the user terminal in this specification may be replaced with a radio base station.
  • the functions provided by the user terminal may be regarded as functions provided by the first communication device or the second communication device.
  • a specific operation performed by a base station may be performed by an upper node of the base station in some cases.
  • various actions performed for communication with the terminal can pass through the base station or one or more networks other than the base station.
  • a node for example, a mobility management entity (MME, Mobility Management Entity), a serving gateway (S-GW, Serving-Gateway, etc., but not limited to this)
  • MME mobility management entity
  • S-GW serving gateway
  • Serving-Gateway Serving-Gateway
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • LTE-B LTE-Beyond
  • Super 3G mobile communication system SUPER 3G
  • IMT-Advanced 4G mobile communication system (4G, 4th mobile communication system
  • 5G mobile communication system 5G mobile communication system (5G, 5th generation mobile communication system)
  • Future Radio Access Future Radio Access
  • New Radio Access Technology New-RAT, Radio Access Technology
  • New Radio NR, New Radio
  • NX New Radio Access
  • New Radio Access New Radio Access
  • Future Generation Radio Access Future Generation Radio Access
  • GSM registered trademark
  • GSM Global Mobile Communication System
  • CDMA3000 Code Division Multiple Access 3000
  • UMB Ultra Mobile Broadband
  • IEEE 920.11 Wi-Fi (registered trademark)
  • IEEE 920.16 WiMAX (registered trademark)
  • IEEE 920.20 Ultra Wide Band (UWB, Ultra-WideBand)
  • Bluetooth Bluetooth
  • any reference to units using the names "first”, “second”, etc. in this specification does not comprehensively limit the number or order of these units. These names can be used in this specification as a convenient method to distinguish two or more units. Therefore, the reference of the first unit and the second unit does not mean that only two units can be used or that the first unit must precede the second unit in several forms.
  • determining used in this specification may include various actions. For example, regarding “determination”, calculation, calculation, processing, deriving, investigating, and looking up (e.g., tables, databases, or other Searching in the data structure), confirming (ascertaining), etc. are considered to be “judging (determining)”. In addition, as for “determination”, it is also possible to receive (e.g., receive information), transmit (e.g., send information), input (input), output (output), accessing (e.g., Accessing data in memory) and so on are regarded as “judgment (determination)”. In addition, regarding “determination (determination)”, “resolving”, “selecting”, “choosing”, “establishing”, “comparing”, etc. may be regarded as “determination (determining)”. That is, regarding “determination (determination)", several actions can be regarded as “determination (determination)”.
  • connection refers to any direct or indirect connection or combination between two or more units. This includes the case where there are one or more intermediate units between two units that are “connected” or “combined” with each other.
  • the combination or connection between the units may be physical, logical, or a combination of the two.
  • "connect” can also be replaced with "access”.
  • two units can be considered as using one or more wires, cables, and / or printed electrical connections, and as several non-limiting and non-exhaustive examples, by using a radio frequency region , Microwave energy, and / or electromagnetic energy of wavelengths in both the visible and invisible light regions are “connected” or “combined” with each other.

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Abstract

本公开提供了一种上行功率控制的方法及设备，其中执行方法的用户终端包括：接收单元，被设定为从基站接收用于所述用户终端的签名信息；以及控制单元，被设定为根据所接收的签名信息确定所述用户终端的发送功率。

Description

用于上行功率控制的方法及设备 技术领域
本公开涉及移动通信领域，并且更具体地涉及一种用于上行功率控制的方法及设备。
背景技术
为了提高通信系统的抗干扰性，已经提出了在非正交多址接入(Non-Orthogonal Multiple Access，NOMA)系统中基站给每个用户终端设定相应的签名信息，以便用户终端根据签名信息确定自身的签名，从而区分不同的用户终端以减少用户终端之间的干扰。例如，签名信息可以是指示用户终端在发送数据时采用的交织方式的信息、指示用户终端在发送数据时采用的加扰方式的信息、或者指示用户终端在发送数据时采用的扩展方式的信息等。相应地，用户终端可以根据签名信息确定交织方式、加扰方式或者扩展方式，并将所确定的交织方式、加扰方式或者扩展方式作为自身的签名。
在当前的通信系统设计中，基站给用户终端设定的签名信息与用户终端的功率控制没有直接的关系。此外，与LTE/LTE-A系统相比，NOMA系统具有更多的应用条件，例如，新无线(New Radio，NR)帧结构、NR调制与信道编码等。因此，当前的通信系统中的功率控制参数的范围可能不再适合NOMA系统。
发明内容
根据本公开的一个方面，提供了一种由用户终端执行的方法。该方法包括：从基站接收用于所述用户终端的签名信息；以及根据所接收的签名信息确定所述用户终端的发送功率。
根据本公开的一个示例，所述签名信息包括功率信息，所述功率信息指示关于所述用户终端的发送功率的信息。
根据本公开的一个示例，所述方法还包括：根据用户终端的基础功率、用户终端的路损补偿功率、用户终端的基于调制与编码方案的补偿功率以及用户终端的上行链路信道的功率控制调整的补偿功率，确定所述用户终端的发送功率；所述功率信息指示所述基础功率、所述路损补偿功率、所述基于 调制与编码方案的补偿功率、以及所述上行链路信道的功率控制调整的补偿功率中的至少一个的调整信息。
根据本公开的一个示例，所述基础功率包括所述基站为所述基站的小区覆盖范围内的所有用户终端设置的标称功率、以及所述用户终端的专属功率；所述功率信息指示所述用户终端的专属功率的调整信息。
根据本公开的一个示例，所述路损补偿功率是根据所述用户终端的路损补偿参数和所述用户终端的下行路损而确定的；所述功率信息指示所述用户终端的路损补偿参数的调整信息。
根据本公开的一个示例，所述方法还包括：根据高层参数确定所述基础功率、所述路损补偿功率、所述基于调制与编码方案的补偿功率、以及所述上行链路信道的功率控制调整的补偿功率中的至少一个的调整信息。
根据本公开的另一方面，提供了一种用户终端。该用户终端包括：接收单元，被设定为从基站接收用于所述用户终端的签名信息；以及控制单元，被设定为根据所接收的签名信息确定所述用户终端的发送功率。
根据本公开的另一方面，提供了一种由基站执行的方法。该方法包括：确定用于用户终端的签名信息；以及将所确定的签名信息发送给所述用户终端。
根据本公开的一个示例，所述签名信息包括功率信息，所述功率信息指示关于所述用户终端的发送功率的信息。
根据本公开的另一方面，提供了一种基站。该基站包括：控制单元，被设定为确定用于用户终端的签名信息；以及发送单元，被设定为将所确定的签名信息发送给所述用户终端。
根据本公开的一个示例，所述签名信息包括功率信息，所述功率信息指示关于所述用户终端的发送功率的信息。
附图说明
通过结合附图对本公开实施例进行更详细的描述，本公开的上述以及其它目的、特征和优势将变得更加明显。附图用来提供对本公开实施例的进一步理解，并且构成说明书的一部分，与本公开实施例一起用于解释本公开，并不构成对本公开的限制。在附图中，相同的参考标号通常代表相同部件或步骤。
图1是根据本公开实施例的由用户终端执行的方法的流程图；
图2是根据本公开实施例的由基站执行的方法的流程图；
图3是根据本公开实施例的用户终端的结构示意图；
图4是根据本公开实施例的基站的结构示意图；
图5是根据本公开实施例的所涉及的用户终端或基站的硬件结构的示意图。
具体实施方式
为了使得本公开的目的、技术方案和优点更为明显，下面将参照附图详细描述根据本公开的示例实施例。在附图中，相同的参考标号自始至终表示相同的元件。应当理解：这里描述的实施例仅仅是说明性的，而不应被解释为限制本公开的范围。此外，这里所述的用户终端可以包括各种类型的用户终端(User Equipment，UE)，例如移动终端(或称为移动台)或者固定终端，然而，为方便起见，在下文中有时候可互换地使用UE和移动台。此外，基站可以为固定台(fixed station)、NodeB、eNodeB(eNB)、接入点(access point)、发送点、接收点、毫微微小区、小小区等，在此不做限定。
首先，参照图1来描述根据本公开实施例的由用户终端执行的方法。图1是根据本公开实施例的由用户终端执行的用于上行功率控制的方法100的流程图。
根据本公开的一个示例，上行功率控制可以确定上行链路物理信道的发送功率。例如，上行功率控制可以确定物理上行共享信道(Physical Uplink Shared Channel，PUSCH)、物理上行链路控制信道(Physical Uplink Control Channel，PUCCH)、物理随机接入信道(Physical Random Access Channel，PRACH)等的发送功率。此外，上行功率控制还可以确定上行链路信号的发送功率。例如，上行功率控制可以确定探测参考信号(Sounding Reference Signal，SRS)的发送功率。在下面的示例中，以上行功率控制确定PUSCH的发送功率为例来描述本公开的实施例。
如图1所示，在步骤S101中，用户终端从基站接收用于该用户终端的签名信息。例如，签名(signature)可以是多址(Multiple Access，MA)签名，比如3GPP TR 38.812中所规定的MA签名。例如，用户终端的签名可以是用户终端的发送功率、交织方式、加扰方式、扩展方式中的一个或多个。
根据本公开的一个示例，签名信息可以是签名参数。用户终端可以根据签名参数确定该用户终端的签名。
例如，签名信息可以包括功率信息，该功率信息指示关于用户终端的发送功率的信息，以便用户终端确定自身的发送功率。此外，签名信息还可以包括其他信息。例如，签名信息还可以包括指示关于用户终端的交织方式的交织信息，以便用户终端确定自身的交织方式。签名信息还可以包括指示关于用户终端的加扰方式的加扰信息，以便用户终端确定自身的加扰方式。签名信息还可以包括指示关于用户终端的扩展方式的扩展信息，以便用户终端确定自身的扩展方式。当然，签名信息并不限于包括此处所列举的功率信息、交织信息、加扰信息、扩展信息，还可以包括指示关于用户终端在发送数据时对数据进行的其他操作的信息。
根据本公开的一个示例，签名信息可以被设定具有预定比特长度的字段。在该示例中，签名信息的字段中的一部分比特可以表示功率信息，另一部分比特可以表示交织信息、加扰信息或扩展信息等。例如，当签名信息的字段包括4个比特时，该4个比特中的2个比特可以表示功率信息，该4个比特中的另外2个比特可以表示交织信息。
可替换地，在该示例中，签名信息的字段的全部比特可以表示功率信息、交织信息、加扰信息或扩展信息等中的一个或多个。当签名信息的字段的全部比特表示功率信息、交织信息、加扰信息或扩展信息等中的多个时，与签名信息相对应的功率信息和与签名信息相对应的交织信息、加扰信息或扩展信息等具有对应关系。
此外，根据本公开的另一示例，用户终端可以通过接收无线资源控制(Radio Resource Control，RRC)信令、下行链路控制信息(Downlink Control Information，DCI)或媒体接入控制(Media Access Control，MAC)控制元素(Control Element，CE)等接收签名信息。例如，用户终端可以通过多种DCI格式接收签名信息，比如用于PUSCH调度的DCI格式0_0或DCI格式0_1、用于PDSCH调度的DCI格式2_2等。
然后，在步骤S102中，用户终端根据所接收的签名信息确定用户终端的发送功率。在本公开中，用户终端可以根据用户终端的基础功率、用户终端的路损补偿功率、用户终端的基于调制与编码方案(Modulation and Coding Scheme，MCS)的补偿功率、用户终端的上行链路信道的功率控制调整的补 偿功率初步确定用户终端的发送功率。进一步地，用户终端可以根据接收到的签名信息调整基础功率、路损补偿功率、基于MCS的补偿功率、上行链路信道的功率控制调整的补偿功率中的至少一个，以最终确定用户终端的发送功率以及将最终确定的用户终端的发送功率作为该用户终端的签名。
如上面所描述的，签名信息可以包括功率信息，该功率信息指示关于用户终端的发送功率的信息。例如，功率信息可以指示用户终端的基础功率、用户终端的路损补偿功率、用户终端的基于MCS的补偿功率、以及用户终端的上行链路信道的功率控制调整的补偿功率中的至少一个的调整信息。
在该示例中，基础功率可以包括基站为所述基站的小区覆盖范围内的所有用户终端设置的标称功率以及用户终端的专属功率。在这种情形下，功率信息可以指示用户终端的专属功率的调整信息，比如指示用户终端的专属功率的调整值。
此外，在该示例中，路损补偿功率可以根据用户终端的路损补偿参数和用户终端的下行路损来确定。在这种情形下，功率信息可以指示用户终端的路损补偿参数的调整信息，比如指示用户终端的路损补偿参数的调整值。
此外，在该示例中，基于MCS的补偿功率可以根据用户终端的MCS来确定。在这种情形下，功率信息可以指示用户终端的基于MCS的补偿功率的调整信息，比如指示基于MCS的补偿功率的调整值。
此外，在该示例中，上行链路信道的功率控制调整的补偿功率可以根据传输功率控制(Transmission Power Control，TPC)命令来确定。在这种情形下，功率信息可以指示上行链路信道的功率控制调整的补偿功率的调整信息，比如指示上行链路信道的功率控制调整的补偿功率的调整值。
根据本公开的另一示例，除了用户终端的基础功率、用户终端的路损补偿功率、用户终端的基于MCS的补偿功率以及用户终端的上行链路信道的功率控制调整的补偿功率，用户终端的发送功率还可以与用户终端占用的物理资源的带宽有关。例如，可以针对用户终端占用的资源块(Resource Blocks，RB)的数量而设定发送功率的补偿功率。
根据本公开的另一示例，可以设定签名信息与基础功率的调整信息、路损补偿功率的调整信息、基于MCS的补偿功率的调整信息、以及上行链路信道的功率控制调整的补偿功率的调整信息中的至少一个之间的对应关系，以便调整基础功率、路损补偿功率、基于MCS的补偿功率或者上行链路信 道的功率控制调整的补偿功率。例如，可以设定表格，该表格可以包括签名信息的字段的多个取值、以及与每个取值相对应的基础功率的调整值、路损补偿功率的调整值、基于MCS的补偿功率的调整值、以及上行链路信道的功率控制调整的补偿功率的调整值中的至少一个。
应该理解，在该示例中，可以设定一张表格或用于不同情况的多张表格。当设定用于不同情况的多张表格时，在多张表格中的、与签名信息的字段的同一个取值相对应的基础功率的调整值、路损补偿功率的调整值、基于MCS的补偿功率的调整值或者上行链路信道的功率控制调整的补偿功率的调整值可以不同。例如，当设定三张表格时，在第一表格中的、与签名信息的字段的第一值相对应的基础功率的调整值可以为δ 1，在第二表格中的、与签名信息的字段的第一值相对应的基础功率的调整值可以为δ 2，在第三表格中的、与签名信息的字段的第一值相对应的基础功率的调整值可以为δ 3，其中δ 1≠δ 2≠δ 3。
此外，根据本公开的另一示例，还可以根据高层参数确定基础功率、路损补偿功率、基于调制与编码方案的补偿功率、以及上行链路信道的功率控制调整的补偿功率中的至少一个的调整信息。例如，可以根据高层参数确定基础功率的调整值。例如，对于特定的一张表格，该表格可以包括签名信息与基础功率的调整信息之间的对应关系；然后，可以根据高层参数进一步计算基础功率的调整值。
此外，例如，在设定用于不同情况的多张表格的情形下，还可以通过高层参数确定使用该多张表格中的哪一张表格，从而根据所确定的表格确定基础功率、路损补偿功率、基于调制与编码方案的补偿功率、以及上行链路信道的功率控制调整的补偿功率中的至少一个的调整信息。
根据本公开的另一示例，设定上述一张或多张表格的方法可以由通信设备执行，例如基站、用户终端等。例如，通信设备可以在执行设定表格的方法之后，存储所确定的第一表格。然而本公开不限于此。根据本公开的另一示例，设定表格的方法还可以由核心网设备执行。例如，核心网设备可以将设定好的表格通知给基站或用户终端，然后基站或用户终端存储第一表格。此外，根据本公开的另一示例，设定表格的方法可以不由通信设备或核心网设备执行，而是在通信设备或核心网设备出厂之前由厂商执行。例如，表格可以是通信设备出厂时已被存储在通信设备内部的表格。
下面参照等式(1-1)-(4-2)来描述根据签名信息确定用户终端的发送功率的示例。
例如，用户终端可以根据签名信息确定基础功率的调整值，以及然后根据基础功率、基础功率的调整值、路损补偿功率、基于MCS的补偿功率以及上行链路信道的功率控制调整的补偿功率确定用户终端的发送功率。例如，可以通过下面的等式(1-1)确定用户终端在服务小区的载波的UL BWP(BandWidth Part)上的PUSCH发送功率：
Figure PCTCN2018108398-appb-000001
其中，b表示UL BWP，f表示载波，c表示服务小区，i表示PUSCH的发送时机(transmission occasion)，j表示参数设置设定的索引，q d表示用户终端在计算下行路径损耗时所使用的参考信号索引，l表示PUSCH功率控制调整状态的索引，m表示用户终端的签名信息。
在等式(1-1)中，P CMAX,f,c(i)表示在PUSCH发送时机i时，在服务小区c的载波f上的UE最大发送功率。例如，P CMAX,f,c(i)可以是3GPP TS38.101-1、TS38101-2中所规定的UE最大输出功率。
根据本公开的一个示例，用户终端可以设定自身的最大输出功率。对于服务小区c的载波f，所设定的UE最大输出功率P CMAX,f,c可以被定义为对于与每个接收器分支中的参考点相对应的给定发送器分支的参考点而言是可用的。例如，所设定的UE最大输出功率P CMAX,f,c可以被定义为与每个接收器分支中的高层滤波参考信号接收功率(Reference Signal Receiving Power，RSRP)测量的参考点相对应的给定发送器分支的参考点而言是可用的。
此外，在等式(1-1)中，P o_PUSCH,b,f,c(j)表示用户终端的基础功率。例如，P o_PUSCH,b,f,c(j)可以由分量P o_NOMINAL_PUSCH,f,c(j)和分量P o_UE_PUSCH,b,f,c(j)构成，其中，分量P o_NOMINAL_PUSCH,f,c(j)表示基站为所述基站的小区覆盖范围内的所有用户终端设置的标称功率，分量P o_UE_PUSCH,b,f,c(j)表示用户终端的专属功率，j∈{0,1,…,J-1}且为自然数。
根据本公开的一个示例，用户终端可以根据是否被提供第一高层参数来确定用户终端的第一标称功率。例如，第一高层参数可以为P0-PUSCH- AlphaSet。
具体地，当用户终端没有被提供高层参数P0-PUSCH-AlphaSet(或者用于Msg3PUSCH传输)时，j＝0且用户终端的专属功率可以为0，即P o_UE_PUSCH,f,c(0)＝0，并且P o_NOMINAL_PUSCH,f,c(0)＝P o_PRE+Δ PREAMBLE_Msg3，其中参数P o_PRE以及参数Δ PREAMBLE_Msg3可以分别是由用于服务小区c的载波f的高层提供的参数preambleReceivedTargetPower(例如，TS38.321所规定的)和参数msg3-DeltaPreamble。
当用户终端被提供高层参数P0-PUSCH-AlphaSet时，用户终端的专属功率可以不为0，即P o_UE_PUSCH,f,c(0)≠0。在这种情形下，对于免授权的上行链路和授权的上行链路，可以通过不同的方式确定基站为所述基站的小区覆盖范围内的所有用户终端设置的标称功率和用户终端的专属功率。例如，在免授权的上行链路的系统中，对于由高层参数ConfiguredGrantConfig设定的PUSCH传输(或重传)，j＝1，P o_NOMINAL_PUSCH,f,c(1)可以由高层参数p0-NominalWithoutGrant提供，以及P o_UE_PUSCH,b,f,c(1)可以由从向用于服务小区c的载波f的UL BWP b的一组高层参数P0-PUSCH-AlphaSet提供索引P0-PUSCH-AlphaSetId的ConfiguredGrantConfig中的P0-PUSCH-Alpha获得的高层参数p0提供。例如，在授权的上行链路的系统中，对于j∈{2,…,J-1}＝S J，适用于所有j∈S J的P o_NOMINAL_PUSCH,f,c(j)的值可以由用于服务小区c的每个载波f的高层参数p0-NominalWithGrant提供，以及一组P o_UE_PUSCH,b,f,c(j)的值可以由用于服务小区c的载波f的UL BWP b的各组高层参数p0-PUSCH-AlphaSetId指示的P0-PUSCH-AlphaSet中的一组高层参数p0提供。
此外，在等式(1-1)中，P o_NOMA_PUSCH,b,f,c(j,m)表示基础功率的调整值。在本公开中，可以根据在步骤S101中接收的签名信息m来确定P o_NOMA_PUSCH,b,f,c(j,m)。例如，P o_NOMA_PUSCH,b,f,c(j,m)可以表示用户终端的专属功率的调整值。在这种情形下，可以将P o_NOMA_PUSCH,b,f,c(j,m)改写为P o_UENOMA_PUSCH,b,f,c(j,m)。
根据本公开的一个示例，可以设定签名信息和用户终端的专属功率的调整值之间的对应关系。相应地，用户终端可以根据m和P o_NOMA_PUSCH,b,f,c(j,m)之间的对应关系确定P o_NOMA_PUSCH,b,f,c(j,m)。比如，当m＝0时，P o_NOMA_PUSCH,b,f,c(j,m)＝P 1；当m＝1时，P o_NOMA_PUSCH,b,f,c(j,m)＝P 2；当m＝2时，P o_NOMA_PUSCH,b,f,c(j,m)＝P 3等。
根据本公开的一个示例，用户终端可以根据第一高层参数来确定第一标称功率的调整值的取值。例如，第一标称功率的调整值的取值可以由从向用于服务小区c的载波f的UL BWP b的一组高层参数P0-PUSCH-AlphaSet提供索引P0-PUSCH-AlphaSetId的ConfiguredGrantConfig中的P0-PUSCH-Alpha获得的高层参数p0提供。又例如，第一标称功率的调整值可以由用于服务小区c的载波f的UL BWP b的各组高层参数p0-PUSCH-AlphaSetId指示的P0-PUSCH-AlphaSet中的一组高层参数p0提供。
此外，在等式(1-1)中，
Figure PCTCN2018108398-appb-000002
表示根据用户终端占用的RB的数量而确定的补偿功率。
Figure PCTCN2018108398-appb-000003
表示PUSCH资源分配的带宽，其被表达为用于服务小区c的载波f的UL BWP b上的PUSCH发送时机i的资源块的数量。此外，μ表示子载波间隔设定。
此外，在等式(1-1)中，α b,f,c(j)·PL b,f,c(q d)表示路损补偿功率。PL b,f,c(q d)可以是用户终端使用用于DL BWP的参考信号索引q d计算的、以dB形式的下行链路路径损耗估计。例如，用户终端可以使用参考信号功率和高层滤波RSRP的差值来确定PL b,f,c(q d)。
根据本公开的一个示例，当j的取值不同时，用户终端可以通过不同的高层参数来确定α b,f,c(j)的取值。例如，用户终端可以通过第一高层参数来确定α b,f,c(j)的取值。比如，当j＝1时，α b,f,c(1)可以由从向用于服务小区c的载波f的UL BWP b的一组高层参数P0-PUSCH-AlphaSet提供索引P0-PUSCH-AlphaSetId的ConfiguredGrantConfig中的P0-PUSCH-Alpha获得的高层参数alpha提供。又例如，适用于所有j∈S J的一组α b,f,c(j)的值可以由用于服务小区c的载波f的UL BWP b的各组高层参数p0-PUSCH-AlphaSetId指示的P0-PUSCH-AlphaSet中的一组高层参数alpha提供。
又例如，用户终端可以通过第二高层参数来确定α b,f,c(j)的取值。第二高层参数可以为高层参数msg3-Alpha。比如，当j＝0时，α b,f,c(0)可以是高层参数msg3-Alpha的值。
此外，在等式(1-1)中，Δ TF,b,f,c(i)表示在PUSCH的发送时机i时的基于MCS的补偿功率。根据本公开的一个示例，用户终端可以通过第三高层参数确定Δ TF,b,f,c(i)的取值。例如，第三高层参数可以是用于服务小区c的每个载波f的每个UL BWP b的高层参数deltaMCS。
此外，在等式(1-1)中，f b,f,c(i,l)表示在PUSCH的发送时机i时的上 行链路信道的功率控制调整的补偿功率。在PUSCH的发送时机i时的上行链路信道的功率控制调整的补偿功率可以包括先于PUSCH的发送时机i的发送时机(例如，PUSCH的发送时机i的上一发送时机i last)时的上行链路信道的功率控制调整的补偿功率和修正值(correction value)。例如，可以通过下面的等式(1-2)来确定f b,f,c(i,l)：
f b,f,c(i,l)＝f b,f,c(i last,l)+δ PUSCH,b,f,c(i last,i,K PUSCH,l)   等式(1-2)
其中，f b,f,c(i last,l)表示PUSCH的发送时机i的上一发送时机i last时的上行链路信道的功率控制调整的补偿功率，δ PUSCH,b,f,c(i last,i,K PUSCH,l)表示修正值，K PUSCH表示在对应的PDCCH的最后一个码元之后且在PUSCH发送的第一个码元之前的、用于服务小区c的载波f的UL BWP b的码元的数量。
此外，在等式(1-1)中，基础功率和基础功率的调整值被表示为两个单独的分量，然而本公开不限于此。根据本公开的另一示例，基础功率的调整值可以作为基础功率的分量。在这种情形下，等式(1-1)可以被改写为下面的等式(1-3)：
Figure PCTCN2018108398-appb-000004
其中，P o_PUSCH,b,f,c(j,m)可以由分量P o_NOMINAL_PUSCH,f,c(j)、分量P o_UE_PUSCH,b,f,c(j)以及分量P o_UENOMA_PUSCH,b,f,c(j,m)构成。
上文描述了根据基础功率、基础功率的调整值、路损补偿功率、基于MCS的补偿功率以及上行链路信道的功率控制调整的补偿功率确定用户终端的发送功率的示例。根据本公开的另一示例，用户终端还可以根据基础功率、路损补偿功率、路损补偿功率的调整值、基于MCS的补偿功率以及上行链路信道的功率控制调整的补偿功率确定用户终端的发送功率。例如，可以通过下面的等式(2-1)确定用户终端在服务小区的载波的UL BWP上的PUSCH发送功率：
Figure PCTCN2018108398-appb-000005
Figure PCTCN2018108398-appb-000006
由于等式(2-1)与在上文描述的等式(1-1)的部分细节相同，因此在这里为了简单起见，省略对相同内容的详细描述。
在等式(2-1)中，α b,f,c(m)·PL b,f,c(q d)表示路损补偿功率的调整值。在本公开中，可以根据在步骤S101中接收的签名信息m来确定α b,f,c(m)。α b,f,c(m)可以是路损补偿参数的调整值。根据本公开的一个示例，可以设定签名信息和路损补偿参数的调整值之间的对应关系。相应地，用户终端可以根据m和α b,f,c(m)之间的对应关系确定α b,f,c(m)。比如，当m＝0时，α b,f,c(m)＝α 1；当m＝1时，α b,f,c(m)＝α 2；当m＝2时，α b,f,c(m)＝α 3等。
根据本公开的一个示例，用户终端可以通过第一高层参数确定路损补偿参数的调整值的取值。例如，α b,f,c(m)的值可以由用于服务小区c的载波f的UL BWP b的各组高层参数p0-PUSCH-AlphaSetId指示的P0-PUSCH-AlphaSet中的一组高层参数alpha提供。
此外，在等式(2-1)中，路损补偿功率和路损补偿功率的调整值被表示为两个单独的分量，然而本公开不限于此。根据本公开的另一示例，路损补偿功率的调整值可以作为路损补偿功率的分量。在这种情形下，等式(2-1)可以被改写为下面的等式(2-2)：
Figure PCTCN2018108398-appb-000007
其中，α b,f,c(j,m)表示调整后的路损补偿参数。
根据本公开的一个示例，可以设定签名信息和调整后的路损补偿参数之间的对应关系。相应地，用户终端可以根据m和α b,f,c(j,m)之间的对应关系确定α b,f,c(j,m)。例如，在设定码元级扩展(symbol level spreading)的系统中，当m＝0时，α b,f,c(j,m)＝1。
此外，根据本公开的另一示例，用户终端还可以根据基础功率、路损补偿功率、基于MCS的补偿功率、基于MCS的补偿功率的调整值以及上行链路信道的功率控制调整的补偿功率确定用户终端的发送功率。例如，可以通过下面的等式(3-1)确定用户终端在服务小区的载波的UL BWP上的PUSCH发送功率：
Figure PCTCN2018108398-appb-000008
由于等式(3-1)与在上文描述的等式(1-1)的部分细节相同，因此在这里为了简单起见，省略对相同内容的详细描述。
在等式(3-1)中，Δ NOMA,b,f,c(i,m)表示基于MCS的补偿功率的调整值。在本公开中，可以根据在步骤S101中接收的签名信息m来确定Δ NOMA,b,f,c(i,m)。根据本公开的一个示例，可以设定签名信息和基于MCS的补偿功率的调整值之间的对应关系。相应地，用户终端可以根据m和Δ NOMA,b,f,c(i,m)之间的对应关系确定Δ NOMA,b,f,c(i,m)。比如，当m＝0时，Δ NOMA,b,f,c(i,m)＝Δ 1；当m＝1时，Δ NOMA,b,f,c(i,m)＝Δ 2；当m＝2时，Δ NOMA,b,f,c(i,m)＝Δ 3等。
此外，在等式(3-1)中，基于MCS的补偿功率和基于MCS的补偿功率的调整值被表示为两个单独的分量，然而本公开不限于此。根据本公开的另一示例，基于MCS的补偿功率的调整值可以作为基于MCS的补偿功率的分量。在这种情形下，等式(3-1)可以被改写为下面的等式(3-2)：
Figure PCTCN2018108398-appb-000009
其中，Δ TF,b,f,c(i,m)可以由分量Δ TF,b,f,c(i)以及分量Δ NOMA,b,f,c(i,m)构成。
根据本公开的一个示例，Δ TF,b,f,c(i,m)也可以仅由分量Δ NOMA,b,f,c(i,m)构成。例如，在设定码元级扩展的系统中，Δ TF,b,f,c(i,m)可以等于Δ NOMA,b,f,c(i,m)。
根据本公开的另一示例，可以设定签名信息m和Δ TF,b,f,c(i,m)之间的对应关系。相应地，用户终端可以根据m和Δ TF,b,f,c(i,m)之间的对应关系确定Δ TF,b,f,c(i,m)的取值。例如，当m＝0时，Δ TF,b,f,c(i,m)＝0；当m＝1时，Δ TF,b,f,c(i,m)＝3；当m＝2时，Δ TF,b,f,c(i,m)＝-3等。
此外，根据本公开的另一示例，用户终端还可以根据基础功率、路损补偿功率、基于MCS的补偿功率、上行链路信道的功率控制调整的补偿功率以及上行链路信道的功率控制调整的补偿功率的调整值确定用户终端的发 送功率。例如，可以通过下面的等式(4-1)确定用户终端在服务小区的载波的UL BWP上的PUSCH发送功率：
Figure PCTCN2018108398-appb-000010
由于等式(4-1)与在上文描述的等式(1-1)的部分细节相同，因此在这里为了简单起见，省略对相同内容的详细描述。
在等式(4-1)中，f NOMA,b,f,c(i,l,m)表示上行链路信道的功率控制调整的补偿功率的调整值。在本公开中，可以根据在步骤S101中接收的签名信息m来确定f NOMA,b,f,c(i,l,m)。根据本公开的一个示例，可以设定签名信息和上行链路信道的功率控制调整的补偿功率的调整值之间的对应关系。相应地，用户终端可以根据m和f NOMA,b,f,c(i,l,m)之间的对应关系确定f NOMA,b,f,c(i,l,m)。比如，当m＝0时，f NOMA,b,f,c(i,l,m)＝f 1；当m＝1时，f NOMA,b,f,c(i,l,m)＝f 2；当m＝3时，f NOMA,b,f,c(i,l,m)＝f 3等。
此外，在等式(4-1)中，上行链路信道的功率控制调整的补偿功率和上行链路信道的功率控制调整的补偿功率的调整值被表示为两个单独的分量，然而本公开不限于此。根据本公开的另一示例，上行链路信道的功率控制调整的补偿功率的调整值可以作为上行链路信道的功率控制调整的补偿功率的分量。在这种情形下，等式(4-1)可以被改写为下面的等式(4-2)：
Figure PCTCN2018108398-appb-000011
其中，f b,f,c(i,l,m)表示调整后的上行链路信道的功率控制调整的补偿功率。当上行链路信道的功率控制调整的补偿功率被调整时，相应地，修正值可以被调整。
根据本公开的一个示例，修正值可以被称为TPC命令，其可以被包括在用于在服务小区c的载波f的UL BWP b上调度PUSCH发送时机i的DCI格式0_0或DCI格式0_1中。此外，修正值还可以与以DCI格式2_2的其他TPC命令联合编码。
例如，可以设定TPC命令字段的取值和修正值的对应关系，如表1所 示。例如，在表1中，第一列表示TPC命令字段的取值，第二列表示累积的(accumulated)δ PUSCH,b,f,c，第三列表示绝对的(absolute)δ PUSCH,b,f,c。
TPC命令字段 累积的δ PUSCH,b,f,c[dB] 绝对的δ PUSCH,b,f,c[dB]
0 -1 -4
1 0 -1
2 1 1
3 3 4
4 -3 -3
5 -2 -2
6 2 2
7 0.5 3
表1
应该注意，虽然确定用户终端的发送功率的等式(例如，上面所描述的等式(1-1)～(4-2))仅涉及对基础功率、路损补偿功率、基于编码与调制方案的补偿功率、以及上行链路信道的功率控制调整的补偿功率中的一项的调整值，然而本领域技术人员可以理解，确定用户终端的发送功率的等式可以涉及对基础功率、路损补偿功率、基于编码与调制方案的补偿功率、以及上行链路信道的功率控制调整的补偿功率中的两项或更多项的调整值。
此外，根据本公开的一个示例，用户终端可以设置多个功率更新时刻以更新PUSCH的发送功率。例如，用户终端可以在PUSCH发送的开始时刻以及中间时刻更新PUSCH的发送功率。
此外，根据本公开的另一示例，上面所描述是签名信息m可以是参数设置设定的索引j、用户终端在计算下行路径损耗时所使用的参考信号索引q d、PUSCH功率控制调整状态的索引l中的任何一项。例如，签名信息m的取值可以与参数设置设定的索引j、用户终端在计算下行路径损耗时所使用的参考信号索引q d或者PUSCH功率控制调整状态的索引l的取值相同。
此外，根据本公开的一个示例，可以将通信系统中的具有相同发送功率的用户终端划分为一组用户终端。同一组用户终端内的多个用户终端可以具有至少部分相同的签名。例如，同一组用户终端内的多个用户终端可以具有相同的发送功率，同时可以具有不同的扩展方式、交织方式或加扰方式等。
通过本实施例的由用户终端执行的方法，用户终端的签名信息与用户终端的功率控制具有直接的关系，因此，当对多个用户终端进行功率控制时，通信系统可以考虑该多个用户终端的签名信息，减小多个用户终端之间的干扰，从而使得通信系统的性能更优。此外，通过本实施例的由用户终端执行的方法，对现有的功率控制参数的范围进行了扩展，使得能够适合NOMA系统。
下面，参照图2描述与方法100相对应的由基站执行的方法。图2是根据本公开实施例的由基站执行的用于上行功率控制的方法200的流程图。由于方法200与在上文中参照图1描述的方法100的部分细节相同，因此在这里为了简单起见，省略对相同内容的详细描述。如图2所示，在步骤S201中，基站确定用于用户终端的签名信息。例如，签名(signature)可以是多址(Multiple Access，MA)签名，比如3GPP TR 38.812中所规定的MA签名。例如，用户终端的签名可以是用户终端的发送功率、交织方式、加扰方式、扩展方式中的一个或多个。
根据本公开的一个示例，签名信息可以是签名参数。用户终端可以根据签名参数确定该用户终端的签名。
例如，签名信息可以包括功率信息，该功率信息指示关于用户终端的发送功率的信息，以便用户终端确定自身的发送功率。此外，签名信息还可以包括其他信息。例如，签名信息还可以包括指示关于用户终端的交织方式的交织信息，以便用户终端确定自身的交织方式。签名信息还可以包括指示关于用户终端的加扰方式的加扰信息，以便用户终端确定自身的加扰方式。签名信息还可以包括指示关于用户终端的扩展方式的扩展信息，以便用户终端确定自身的扩展方式。当然，签名信息并不限于包括此处所列举的功率信息、交织信息、加扰信息、扩展信息，还可以包括指示关于用户终端在发送数据时对数据进行的其他操作的信息。
然后，在步骤S202中，基站将所确定的签名信息发送给所述用户终端。根据本公开的另一示例，基站可以通过接收无线资源控制(Radio Resource Control，RRC)信令、下行链路控制信息(Downlink Control Information，DCI)或媒体接入控制(Media Access Control，MAC)控制元素(Control Element，CE)等发送签名信息。例如，基站可以通过多种DCI格式发送签名信息，比如用于PUSCH调度的DCI格式0_0或DCI格式0_1、用于PDSCH调度的 DCI格式2_2等。
通过本实施例的由基站执行的方法，用户终端的签名信息与用户终端的功率控制具有直接的关系，因此，当对多个用户终端进行功率控制时，通信系统可以考虑该多个用户终端的签名信息，减小多个用户终端之间的干扰，从而使得通信系统的性能更优。此外，通过本实施例的由基站执行的方法，对现有的功率控制参数的范围进行了扩展，使得能够适合NOMA系统。
下面，参照图3来描述根据本公开实施例的用户终端。图3是根据本公开实施例的用户终端300的结构示意图。由于用户终端300的功能与在上文中参照图1描述的方法的细节相同，因此在这里为了简单起见，省略对相同内容的详细描述。如图3所示，用户终端300包括：接收单元310，被设定为从基站接收用于所述用户终端的签名信息，其中所述签名信息包括功率信息，所述功率信息指示关于所述用户终端的发送功率的信息；以及控制单元320，被设定为根据所接收的签名信息确定所述用户终端的发送功率。除了这两个单元以外，用户终端300还可以包括其他部件，然而，由于这些部件与本公开实施例的内容无关，因此在这里省略其图示和描述。
根据本公开的一个示例，签名信息可以是签名参数。用户终端可以根据签名参数确定该用户终端的签名。
例如，签名信息可以包括功率信息，该功率信息指示关于用户终端的发送功率的信息，以便用户终端确定自身的发送功率。此外，签名信息还可以包括其他信息。例如，签名信息还可以包括指示关于用户终端的交织方式的交织信息，以便用户终端确定自身的交织方式。签名信息还可以包括指示关于用户终端的加扰方式的加扰信息，以便用户终端确定自身的加扰方式。签名信息还可以包括指示关于用户终端的扩展方式的扩展信息，以便用户终端确定自身的扩展方式。当然，签名信息并不限于包括此处所列举的功率信息、交织信息、加扰信息、扩展信息，还可以包括指示关于用户终端在发送数据时对数据进行的其他操作的信息。
根据本公开的一个示例，签名信息可以被设定具有预定比特长度的字段。在该示例中，签名信息的字段中的一部分比特可以表示功率信息，另一部分比特可以表示交织信息、加扰信息或扩展信息等。例如，当签名信息的字段包括4个比特时，该4个比特中的2个比特可以表示功率信息，该4个比特中的另外2个比特可以表示交织信息。
可替换地，在该示例中，签名信息的字段的全部比特可以表示功率信息、交织信息、加扰信息或扩展信息等中的一个或多个。当签名信息的字段的全部比特表示功率信息、交织信息、加扰信息或扩展信息等中的多个时，与签名信息相对应的功率信息和与签名信息相对应的交织信息、加扰信息或扩展信息等具有对应关系。
此外，根据本公开的另一示例，接收单元310可以通过接收无线资源控制(Radio Resource Control，RRC)信令、下行链路控制信息(Downlink Control Information，DCI)或媒体接入控制(Media Access Control，MAC)控制元素(Control Element，CE)等接收签名信息。例如，用户终端可以通过多种DCI格式接收签名信息，比如用于PUSCH调度的DCI格式0_0或DCI格式0_1、用于PDSCH调度的DCI格式2_2等。
在本公开中，控制单元320可以根据用户终端的基础功率、用户终端的路损补偿功率、用户终端的基于调制与编码方案(Modulation and Coding Scheme，MCS)的补偿功率、用户终端的上行链路信道的功率控制调整的补偿功率初步确定用户终端的发送功率。进一步地，控制单元320可以根据接收到的签名信息调整基础功率、路损补偿功率、基于MCS的补偿功率、上行链路信道的功率控制调整的补偿功率中的至少一个，以最终确定用户终端的发送功率以及将最终确定的用户终端的发送功率作为该用户终端的签名。
如上面所描述的，签名信息可以包括功率信息，该功率信息指示关于用户终端的发送功率的信息。例如，功率信息可以指示用户终端的基础功率、用户终端的路损补偿功率、用户终端的基于MCS的补偿功率、以及用户终端的上行链路信道的功率控制调整的补偿功率中的至少一个的调整信息。
在该示例中，基础功率可以包括基站为所述基站的小区覆盖范围内的所有用户终端设置的标称功率以及用户终端的专属功率。在这种情形下，功率信息可以指示用户终端的专属功率的调整信息，比如指示用户终端的专属功率的调整值。
此外，在该示例中，路损补偿功率可以根据用户终端的路损补偿参数和用户终端的下行路损来确定。在这种情形下，功率信息可以指示用户终端的路损补偿参数的调整信息，比如指示用户终端的路损补偿参数的调整值。
此外，在该示例中，基于MCS的补偿功率可以根据用户终端的MCS来确定。在这种情形下，功率信息可以指示用户终端的基于MCS的补偿功率 的调整信息，比如指示基于MCS的补偿功率的调整值。
此外，在该示例中，上行链路信道的功率控制调整的补偿功率可以根据传输功率控制(Transmission Power Control，TPC)命令来确定。在这种情形下，功率信息可以指示上行链路信道的功率控制调整的补偿功率的调整信息，比如指示上行链路信道的功率控制调整的补偿功率的调整值。
根据本公开的另一示例，除了用户终端的基础功率、用户终端的路损补偿功率、用户终端的基于MCS的补偿功率以及用户终端的上行链路信道的功率控制调整的补偿功率，用户终端的发送功率还可以与用户终端占用的物理资源的带宽有关。例如，可以针对用户终端占用的资源块(Resource Blocks，RB)的数量而设定发送功率的补偿功率。
根据本公开的另一示例，可以设定签名信息与基础功率的调整信息、路损补偿功率的调整信息、基于MCS的补偿功率的调整信息、以及上行链路信道的功率控制调整的补偿功率的调整信息中的至少一个之间的对应关系，以便调整基础功率、路损补偿功率、基于MCS的补偿功率或者上行链路信道的功率控制调整的补偿功率。例如，可以设定表格，该表格可以包括签名信息的字段的多个取值、以及与每个取值相对应的基础功率的调整值、路损补偿功率的调整值、基于MCS的补偿功率的调整值、以及上行链路信道的功率控制调整的补偿功率的调整值中的至少一个。
下面参照等式上述(1-1)-(4-2)来描述根据签名信息确定用户终端的发送功率的示例。
例如，用户终端可以根据签名信息确定基础功率的调整值，以及然后根据基础功率、基础功率的调整值、路损补偿功率、基于MCS的补偿功率以及上行链路信道的功率控制调整的补偿功率确定用户终端的发送功率。例如，可以通过上面的等式(1-1)确定用户终端在服务小区的载波的UL BWP(BandWidth Part)上的PUSCH发送功率。
在等式(1-1)中，P CMAX,f,c(i)表示在PUSCH发送时机i时，在服务小区c的载波f上的UE最大发送功率。例如，P CMAX,f,c(i)可以是3GPP TS38.101-1、TS38101-2中所规定的UE最大输出功率。
根据本公开的一个示例，控制单元320可以设定自身的最大输出功率。对于服务小区c的载波f，所设定的UE最大输出功率P CMAX,f,c可以被定义为对于与每个接收器分支中的参考点相对应的给定发送器分支的参考点而言 是可用的。例如，所设定的UE最大输出功率P CMAX,f,c可以被定义为与每个接收器分支中的高层滤波参考信号接收功率(Reference Signal Receiving Power，RSRP)测量的参考点相对应的给定发送器分支的参考点而言是可用的。
此外，在等式(1-1)中，P o_PUSCH,b,f,c(j)表示用户终端的基础功率。例如，P o_PUSCH,b,f,c(j)可以由分量P o_NOMINAL_PUSCH,f,c(j)和分量P o_UE_PUSCH,b,f,c(j)构成，其中，分量P o_NOMINAL_PUSCH,f,c(j)表示基站为所述基站的小区覆盖范围内的所有用户终端设置的标称功率，分量P o_UE_PUSCH,b,f,c(j)表示用户终端的专属功率，j∈{0,1,…,J-1}且为自然数。
根据本公开的一个示例，用户终端可以根据是否被提供第一高层参数来确定用户终端的基础功率。例如，当用户终端没有被提供高层参数P0-PUSCH-AlphaSet(或者用于Msg3PUSCH传输)时，j＝0且用户终端的专属功率可以为0，即P o_UE_PUSCH,f,c(0)＝0，则P o_PUSCH,b,f,c(j)等于分量P o_NOMINAL_PUSCH,f,c(j)。当用户终端被提供高层参数P0-PUSCH-AlphaSet时，用户终端的专属功率可以不为0，即P o_UE_PUSCH,f,c(0)≠0，则P o_PUSCH,b,f,c(j)等于分量P o_NOMINAL_PUSCH,f,c(j)与分量P o_UE_PUSCH,b,f,c(j)之和。
此外，在等式(1-1)中，P o_NOMA_PUSCH,b,f,c(j,m)表示基础功率的调整值。在本公开中，可以根据在步骤S101中接收的签名信息m来确定P o_NOMA_PUSCH,b,f,c(j,m)。例如，P o_NOMA_PUSCH,b,f,c(j,m)可以表示用户终端的专属功率的调整值。在这种情形下，可以将P o_NOMA_PUSCH,b,f,c(j,m)改写为P o_UENOMA_PUSCH,b,f,c(j,m)。
根据本公开的一个示例，可以设定签名信息和用户终端的专属功率的调整值之间的对应关系。相应地，用户终端可以根据m和P o_NOMA_PUSCH,b,f,c(j,m)之间的对应关系确定P o_NOMA_PUSCH,b,f,c(j,m)。比如，当m＝0时，P o_NOMA_PUSCH,b,f,c(j,m)＝P 1；当m＝1时，P o_NOMA_PUSCH,b,f,c(j,m)＝P 2；当m＝2时，P o_NOMA_PUSCH,b,f,c(j,m)＝P 3等。
此外，在等式(1-1)中，
Figure PCTCN2018108398-appb-000012
表示根据用户终端占用的RB的数量而确定的补偿功率。
Figure PCTCN2018108398-appb-000013
表示PUSCH资源分配的带宽，其被表达为用于服务小区c的载波f的UL BWP b上的PUSCH发送时机i的资源块的数量。此外，μ表示子载波间隔设定。
此外，在等式(1-1)中，α b,f,c(j)·PL b,f,c(q d)表示路损补偿功率。 PL b,f,c(q d)可以是用户终端使用用于DL BWP的参考信号索引q d计算的、以dB形式的下行链路路径损耗估计。例如，用户终端可以使用参考信号功率和高层滤波RSRP的差值来确定PL b,f,c(q d)。
根据本公开的一个示例，当j的取值不同时，控制单元320可以通过不同的高层参数来确定α b,f,c(j)的取值。例如，当j≠0时，用户终端可以通过第一高层参数来确定α b,f,c(j)的取值。例如，当j＝0时，用户终端可以通过第二高层参数来确定α b,f,c(j)的取值。第二高层参数可以为高层参数msg3-Alpha。
此外，在等式(1-1)中，Δ TF,b,f,c(i)表示在PUSCH的发送时机i时的基于MCS的补偿功率。根据本公开的一个示例，用户终端可以通过第三高层参数确定Δ TF,b,f,c(i)的取值。例如，第三高层参数可以是用于服务小区c的每个载波f的每个UL BWP b的高层参数deltaMCS。
此外，在等式(1-1)中，f b,f,c(i,l)表示在PUSCH的发送时机i时的上行链路信道的功率控制调整的补偿功率。在PUSCH的发送时机i时的上行链路信道的功率控制调整的补偿功率可以包括先于PUSCH的发送时机i的发送时机(例如，PUSCH的发送时机i的上一发送时机i last)时的上行链路信道的功率控制调整的补偿功率和修正值(correction value)。例如，可以通过上面的等式(1-2)来确定f b,f,c(i,l)。
此外，在等式(1-1)中，基础功率和基础功率的调整值被表示为两个单独的分量，然而本公开不限于此。根据本公开的另一示例，基础功率的调整值可以作为基础功率的分量。在这种情形下，等式(1-1)可以被改写为上面的等式(1-3)，其中，P o_PUSCH,b,f,c(j,m)可以由分量P o_NOMINAL_PUSCH,f,c(j)、分量P o_UE_PUSCH,b,f,c(j)以及分量P o_UENOMA_PUSCH,b,f,c(j,m)构成。
上文描述了根据基础功率、基础功率的调整值、路损补偿功率、基于MCS的补偿功率以及上行链路信道的功率控制调整的补偿功率确定用户终端的发送功率的示例。根据本公开的另一示例，用户终端还可以根据基础功率、路损补偿功率、路损补偿功率的调整值、基于MCS的补偿功率以及上行链路信道的功率控制调整的补偿功率确定用户终端的发送功率。例如，可以通过上面的等式(2-1)确定用户终端在服务小区的载波的UL BWP上的PUSCH发送功率。
由于等式(2-1)与在上文描述的等式(1-1)的部分细节相同，因此在 这里为了简单起见，省略对相同内容的详细描述。
在等式(2-1)中，α b,f,c(m)·PL b,f,c(q d)表示路损补偿功率的调整值。在本公开中，可以根据在步骤S101中接收的签名信息m来确定α b,f,c(m)。α b,f,c(m)可以是路损补偿参数的调整值。根据本公开的一个示例，可以设定签名信息和路损补偿参数的调整值之间的对应关系。相应地，用户终端可以根据m和α b,f,c(m)之间的对应关系确定α b,f,c(m)。比如，当m＝0时，α b,f,c(m)＝α 1；当m＝1时，α b,f,c(m)＝α 2；当m＝2时，α b,f,c(m)＝α 3等。
此外，在等式(2-1)中，路损补偿功率和路损补偿功率的调整值被表示为两个单独的分量，然而本公开不限于此。根据本公开的另一示例，路损补偿功率的调整值可以作为路损补偿功率的分量。在这种情形下，等式(2-1)可以被改写为上面的等式(2-2)，其中，α b,f,c(j,m)表示调整后的路损补偿参数。
根据本公开的一个示例，可以设定签名信息和调整后的路损补偿参数之间的对应关系。相应地，用户终端可以根据m和α b,f,c(j,m)之间的对应关系确定α b,f,c(j,m)。例如，在设定码元级扩展(symbol level spreading)的系统中，当m＝0时，α b,f,c(j,m)＝1。
此外，根据本公开的另一示例，用户终端还可以根据基础功率、路损补偿功率、基于MCS的补偿功率、基于MCS的补偿功率的调整值以及上行链路信道的功率控制调整的补偿功率确定用户终端的发送功率。例如，可以通过上面的等式(3-1)确定用户终端在服务小区的载波的UL BWP上的PUSCH发送功率。
由于等式(3-1)与在上文描述的等式(1-1)的部分细节相同，因此在这里为了简单起见，省略对相同内容的详细描述。
在等式(3-1)中，Δ NOMA,b,f,c(i,m)表示基于MCS的补偿功率的调整值。在本公开中，可以根据在步骤S101中接收的签名信息m来确定Δ NOMA,b,f,c(i,m)。根据本公开的一个示例，可以设定签名信息和基于MCS的补偿功率的调整值之间的对应关系。相应地，用户终端可以根据m和Δ NOMA,b,f,c(i,m)之间的对应关系确定Δ NOMA,b,f,c(i,m)。比如，当m＝0时，Δ NOMA,b,f,c(i,m)＝Δ 1；当m＝1时，Δ NOMA,b,f,c(i,m)＝Δ 2；当m＝2时，Δ NOMA,b,f,c(i,m)＝Δ 3等。
此外，在等式(3-1)中，基于MCS的补偿功率和基于MCS的补偿功 率的调整值被表示为两个单独的分量，然而本公开不限于此。根据本公开的另一示例，基于MCS的补偿功率的调整值可以作为基于MCS的补偿功率的分量。在这种情形下，等式(3-1)可以被改写为上面的等式(3-2)，其中，Δ TF,b,f,c(i,m)可以由分量Δ TF,b,f,c(i)以及分量Δ NOMA,b,f,c(i,m)构成。
根据本公开的一个示例，Δ TF,b,f,c(i,m)也可以仅由分量Δ NOMA,b,f,c(i,m)构成。例如，在设定码元级扩展的系统中，Δ TF,b,f,c(i,m)可以等于Δ NOMA,b,f,c(i,m)。
根据本公开的另一示例，可以设定签名信息m和Δ TF,b,f,c(i,m)之间的对应关系。相应地，用户终端可以根据m和Δ TF,b,f,c(i,m)之间的对应关系确定Δ TF,b,f,c(i,m)的取值。例如，当m＝0时，Δ TF,b,f,c(i,m)＝0；当m＝1时，Δ TF,b,f,c(i,m)＝3；当m＝2时，Δ TF,b,f,c(i,m)＝-3等。
此外，根据本公开的另一示例，用户终端还可以根据基础功率、路损补偿功率、基于MCS的补偿功率、上行链路信道的功率控制调整的补偿功率以及上行链路信道的功率控制调整的补偿功率的调整值确定用户终端的发送功率。例如，可以通过上面的等式(4-1)确定用户终端在服务小区的载波的UL BWP上的PUSCH发送功率。
由于等式(4-1)与在上文描述的等式(1-1)的部分细节相同，因此在这里为了简单起见，省略对相同内容的详细描述。
在等式(4-1)中，f NOMA,b,f,c(i,l,m)表示上行链路信道的功率控制调整的补偿功率的调整值。在本公开中，可以根据在步骤S101中接收的签名信息m来确定f NOMA,b,f,c(i,l,m)。根据本公开的一个示例，可以设定签名信息和上行链路信道的功率控制调整的补偿功率的调整值之间的对应关系。相应地，用户终端可以根据m和f NOMA,b,f,c(i,l,m)之间的对应关系确定f NOMA,b,f,c(i,l,m)。比如，当m＝0时，f NOMA,b,f,c(i,l,m)＝f 1；当m＝1时，f NOMA,b,f,c(i,l,m)＝f 2；当m＝3时，f NOMA,b,f,c(i,l,m)＝f 3等。
此外，在等式(4-1)中，上行链路信道的功率控制调整的补偿功率和上行链路信道的功率控制调整的补偿功率的调整值被表示为两个单独的分量，然而本公开不限于此。根据本公开的另一示例，上行链路信道的功率控制调整的补偿功率的调整值可以作为上行链路信道的功率控制调整的补偿功率的分量。在这种情形下，等式(4-1)可以被改写为上面的等式(4-2)，其中，f b,f,c(i,l,m)表示调整后的上行链路信道的功率控制调整的补偿功率。当上行 链路信道的功率控制调整的补偿功率被调整时，相应地，修正值可以被调整。
根据本公开的一个示例，修正值可以被称为TPC命令，其可以被包括在用于在服务小区c的载波f的UL BWP b上调度PUSCH发送时机i的DCI格式0_0或DCI格式0_1中。此外，修正值还可以与以DCI格式2_2的其他TPC命令联合编码。
例如，可以设定TPC命令字段的取值和修正值的对应关系，如上面的表1所示。例如，在表1中，第一列表示TPC命令字段的取值，第二列表示累积的(accumulated)δ PUSCH,b,f,c，第三列表示绝对的(absolute)δ PUSCH,b,f,c。
应该注意，虽然确定用户终端的发送功率的等式(例如，上面所描述的等式(1-1)～(4-2))仅涉及对基础功率、路损补偿功率、基于编码与调制方案的补偿功率、以及上行链路信道的功率控制调整的补偿功率中的一项的调整值，然而本领域技术人员可以理解，确定用户终端的发送功率的等式可以涉及对基础功率、路损补偿功率、基于编码与调制方案的补偿功率、以及上行链路信道的功率控制调整的补偿功率中的两项或更多项的调整值。
此外，根据本公开的一个示例，控制单元320可以设置多个功率更新时刻以更新PUSCH的发送功率。例如，控制单元320可以在PUSCH发送的开始时刻以及中间时刻更新PUSCH的发送功率。
此外，根据本公开的另一示例，上面所描述是签名信息m可以是参数设置设定的索引j、用户终端在计算下行路径损耗时所使用的参考信号索引q d、PUSCH功率控制调整状态的索引l中的任何一项。例如，签名信息m的取值可以与参数设置设定的索引j、用户终端在计算下行路径损耗时所使用的参考信号索引q d或者PUSCH功率控制调整状态的索引l的取值相同。
此外，根据本公开的一个示例，可以将通信系统中的具有相同发送功率的用户终端划分为一组用户终端。同一组用户终端内的多个用户终端可以具有至少部分相同的签名。例如，同一组用户终端内的多个用户终端可以具有相同的发送功率，同时可以具有不同的扩展方式、交织方式或加扰方式等。
通过本实施例的用户终端，用户终端的签名信息与用户终端的功率控制具有直接的关系，因此，当对多个用户终端进行功率控制时，通信系统可以考虑该多个用户终端的签名信息，减小多个用户终端之间的干扰，从而使得通信系统的性能更优。此外，通过本实施例的用户终端，对现有的功率控制参数的范围进行了扩展，使得能够适合NOMA系统。
下面，参照图4来描述根据本公开实施例的基站。图4是根据本公开实施例的基站400的结构示意图。由于基站400的功能与在上文中参照图2描述的方法的细节相同，因此在这里为了简单起见，省略对相同内容的详细描述。如图4所示，基站400包括：控制单元410，被设定为确定用于用户终端的签名信息，其中所述签名信息包括功率信息，所述功率信息指示关于所述用户终端的发送功率的信息；以及发送单元420，被设定为将所确定的签名信息发送给所述用户终端。除了这两个单元以外，基站400还可以包括其他部件，然而，由于这些部件与本公开实施例的内容无关，因此在这里省略其图示和描述。
根据本公开的一个示例，签名信息可以是签名参数。用户终端可以根据签名参数确定该用户终端的签名。
例如，签名信息可以包括功率信息，该功率信息指示关于用户终端的发送功率的信息，以便用户终端确定自身的发送功率。此外，签名信息还可以包括其他信息。例如，签名信息还可以包括指示关于用户终端的交织方式的交织信息，以便用户终端确定自身的交织方式。签名信息还可以包括指示关于用户终端的加扰方式的加扰信息，以便用户终端确定自身的加扰方式。签名信息还可以包括指示关于用户终端的扩展方式的扩展信息，以便用户终端确定自身的扩展方式。当然，签名信息并不限于包括此处所列举的功率信息、交织信息、加扰信息、扩展信息，还可以包括指示关于用户终端在发送数据时对数据进行的其他操作的信息。
根据本公开的另一示例，发送单元420可以通过接收无线资源控制(Radio Resource Control，RRC)信令、下行链路控制信息(Downlink Control Information，DCI)或媒体接入控制(Media Access Control，MAC)控制元素(Control Element，CE)等发送签名信息。例如，发送单元420可以通过多种DCI格式发送签名信息，比如用于PUSCH调度的DCI格式0_0或DCI格式0_1、用于PDSCH调度的DCI格式2_2等。
通过本实施例的基站，用户终端的签名信息与用户终端的功率控制具有直接的关系，因此，当对多个用户终端进行功率控制时，通信系统可以考虑该多个用户终端的签名信息，减小多个用户终端之间的干扰，从而使得通信系统的性能更优。此外，通过本实施例的基站，对现有的功率控制参数的范围进行了扩展，使得能够适合NOMA系统。
<硬件结构>
另外，上述实施方式的说明中使用的框图示出了以功能为单位的块。这些功能块(结构单元)通过硬件和/或软件的任意组合来实现。此外，各功能块的实现手段并不特别限定。即，各功能块可以通过在物理上和/或逻辑上相结合的一个装置来实现，也可以将在物理上和/或逻辑上相分离的两个以上装置直接地和/或间接地(例如通过有线和/或无线)连接从而通过上述多个装置来实现。
例如，本公开的一个实施例的设备(比如第一通信设备、第二通信设备或飞行用户终端等)可以作为执行本公开的无线通信方法的处理的计算机来发挥功能。图5是根据本公开的实施例的所涉及的设备500(基站或用户终端)的硬件结构的示意图。上述的设备500(基站或用户终端)可以作为在物理上包括处理器510、内存520、存储器530、通信装置540、输入装置550、输出装置560、总线570等的计算机装置来构成。
另外，在以下的说明中，“装置”这样的文字也可替换为电路、设备、单元等。用户终端和基站的硬件结构可以包括一个或多个图中所示的各装置，也可以不包括部分装置。
例如，处理器510仅图示出一个，但也可以为多个处理器。此外，可以通过一个处理器来执行处理，也可以通过一个以上的处理器同时、依次、或采用其它方法来执行处理。另外，处理器510可以通过一个以上的芯片来安装。
设备500的各功能例如通过如下方式实现：通过将规定的软件(程序)读入到处理器510、内存520等硬件上，从而使处理器510进行运算，对由通信装置540进行的通信进行控制，并对内存520和存储器530中的数据的读出和/或写入进行控制。
处理器510例如使操作系统进行工作从而对计算机整体进行控制。处理器510可以由包括与周边装置的接口、控制装置、运算装置、寄存器等的中央处理器(CPU，Central Processing Unit)构成。例如，上述的确定单元、调整单元等可以通过处理器510实现。
此外，处理器510将程序(程序代码)、软件模块、数据等从存储器530和/或通信装置540读出到内存520，并根据它们执行各种处理。作为程序，可以采用使计算机执行在上述实施方式中说明的动作中的至少一部分的程 序。例如，用户终端500的确定单元可以通过保存在内存520中并通过处理器510来工作的控制程序来实现，对于其它功能块，也可以同样地来实现。
内存520是计算机可读取记录介质，例如可以由只读存储器(ROM，Read Only Memory)、可编程只读存储器(EPROM，Erasable Programmable ROM)、电可编程只读存储器(EEPROM，Electrically EPROM)、随机存取存储器(RAM，Random Access Memory)、其它适当的存储介质中的至少一个来构成。内存520也可以称为寄存器、高速缓存、主存储器(主存储装置)等。内存520可以保存用于实施本公开的一实施方式所涉及的方法的可执行程序(程序代码)、软件模块等。
存储器530是计算机可读取记录介质，例如可以由软磁盘(flexible disk)、软(注册商标)盘(floppy disk)、磁光盘(例如，只读光盘(CD-ROM(Compact Disc ROM)等)、数字通用光盘、蓝光(Blu-ray，注册商标)光盘)、可移动磁盘、硬盘驱动器、智能卡、闪存设备(例如，卡、棒(stick)、密钥驱动器(key driver))、磁条、数据库、服务器、其它适当的存储介质中的至少一个来构成。存储器530也可以称为辅助存储装置。
通信装置540是用于通过有线和/或无线网络进行计算机间的通信的硬件(发送接收设备)，例如也称为网络设备、网络控制器、网卡、通信模块等。通信装置540为了实现例如频分双工(FDD，Frequency Division Duplex)和/或时分双工(TDD，Time Division Duplex)，可以包括高频开关、双工器、滤波器、频率合成器等。例如，上述的发送单元、接收单元等可以通过通信装置540来实现。
输入装置550是接受来自外部的输入的输入设备(例如，键盘、鼠标、麦克风、开关、按钮、传感器等)。输出装置560是实施向外部的输出的输出设备(例如，显示器、扬声器、发光二极管(LED，Light Emitting Diode)灯等)。另外，输入装置550和输出装置560也可以为一体的结构(例如触控面板)。
此外，处理器510、内存520等各装置通过用于对信息进行通信的总线570连接。总线570可以由单一的总线构成，也可以由装置间不同的总线构成。
此外，基站和用户终端可以包括微处理器、数字信号处理器(DSP，Digital Signal Processor)、专用集成电路(ASIC，Application Specific Integrated Circuit)、 可编程逻辑器件(PLD，Programmable Logic Device)、现场可编程门阵列(FPGA，Field Programmable Gate Array)等硬件，可以通过该硬件来实现各功能块的部分或全部。例如，处理器510可以通过这些硬件中的至少一个来安装。
(变形例)
另外，关于本说明书中说明的用语和/或对本说明书进行理解所需的用语，可以与具有相同或类似含义的用语进行互换。例如，信道和/或符号也可以为信号(信令)。此外，信号也可以为消息。参考信号也可以简称为RS(Reference Signal)，根据所适用的标准，也可以称为导频(Pilot)、导频信号等。此外，分量载波(CC，Component Carrier)也可以称为小区、频率载波、载波频率等。
此外，本说明书中说明的信息、参数等可以用绝对值来表示，也可以用与规定值的相对值来表示，还可以用对应的其它信息来表示。例如，无线资源可以通过规定的索引来指示。进一步地，使用这些参数的公式等也可以与本说明书中明确公开的不同。
在本说明书中用于参数等的名称在任何方面都并非限定性的。例如，各种各样的信道(物理上行链路控制信道(PUCCH，Physical Uplink Control Channel)、物理下行链路控制信道(PDCCH，Physical Downlink Control Channel)等)和信息单元可以通过任何适当的名称来识别，因此为这些各种各样的信道和信息单元所分配的各种各样的名称在任何方面都并非限定性的。
本说明书中说明的信息、信号等可以使用各种各样不同技术中的任意一种来表示。例如，在上述的全部说明中可能提及的数据、命令、指令、信息、信号、比特、符号、芯片等可以通过电压、电流、电磁波、磁场或磁性粒子、光场或光子、或者它们的任意组合来表示。
此外，信息、信号等可以从上层向下层、和/或从下层向上层输出。信息、信号等可以经由多个网络节点进行输入或输出。
输入或输出的信息、信号等可以保存在特定的场所(例如内存)，也可以通过管理表进行管理。输入或输出的信息、信号等可以被覆盖、更新或补充。输出的信息、信号等可以被删除。输入的信息、信号等可以被发往其它装置。
信息的通知并不限于本说明书中说明的方式/实施方式，也可以通过其它方法进行。例如，信息的通知可以通过物理层信令(例如，下行链路控制信息(DCI，Downlink Control Information)、上行链路控制信息(UCI，Uplink Control Information))、上层信令(例如，无线资源控制(RRC，Radio Resource Control)信令、广播信息(主信息块(MIB，Master Information Block)、系统信息块(SIB，System Information Block)等)、媒体存取控制(MAC，Medium Access Control)信令)、其它信号或者它们的组合来实施。
另外，物理层信令也可以称为L1/L2(第1层/第2层)控制信息(L1/L2控制信号)、L1控制信息(L1控制信号)等。此外，RRC信令也可以称为RRC消息，例如可以为RRC连接建立(RRC Connection Setup)消息、RRC连接重设定(RRC Connection Reconfiguration)消息等。此外，MAC信令例如可以通过MAC控制单元(MAC CE(Control Element))来通知。
此外，规定信息的通知(例如，“为X”的通知)并不限于显式地进行，也可以隐式地(例如，通过不进行该规定信息的通知，或者通过其它信息的通知)进行。
关于判定，可以通过由1比特表示的值(0或1)来进行，也可以通过由真(true)或假(false)表示的真假值(布尔值)来进行，还可以通过数值的比较(例如与规定值的比较)来进行。
软件无论被称为软件、固件、中间件、微代码、硬件描述语言，还是以其它名称来称呼，都应宽泛地解释为是指命令、命令集、代码、代码段、程序代码、程序、子程序、软件模块、应用程序、软件应用程序、软件包、例程、子例程、对象、可执行文件、执行线程、步骤、功能等。
此外，软件、命令、信息等可以经由传输介质被发送或接收。例如，当使用有线技术(同轴电缆、光缆、双绞线、数字用户线路(DSL，Digital Subscriber Line)等)和/或无线技术(红外线、微波等)从网站、服务器、或其它远程资源发送软件时，这些有线技术和/或无线技术包括在传输介质的定义内。
本说明书中使用的“系统”和“网络”这样的用语可以互换使用。
在本说明书中，“基站(BS，Base Station)”、“无线基站”、“eNB”、“gNB”、“小区”、“扇区”、“小区组”、“载波”以及“分量载波”这样的用语可以互换使 用。基站有时也以固定台(fixed station)、NodeB、eNodeB(eNB)、接入点(access point)、发送点、接收点、毫微微小区、小小区等用语来称呼。
基站可以容纳一个或多个(例如三个)小区(也称为扇区)。当基站容纳多个小区时，基站的整个覆盖区域可以划分为多个更小的区域，每个更小的区域也可以通过基站子系统(例如，室内用小型基站(射频拉远头(RRH，Remote Radio Head)))来提供通信服务。“小区”或“扇区”这样的用语是指在该覆盖中进行通信服务的基站和/或基站子系统的覆盖区域的一部分或整体。
在本说明书中，“移动台(MS，Mobile Station)”、“用户终端(user terminal)”、“用户装置(UE，User Equipment)”以及“终端”这样的用语可以互换使用。移动台有时也被本领域技术人员以用户台、移动单元、用户单元、无线单元、远程单元、移动设备、无线设备、无线通信设备、远程设备、移动用户台、接入终端、移动终端、无线终端、远程终端、手持机、用户代理、移动客户端、客户端或者若干其它适当的用语来称呼。
此外，本说明书中的无线基站也可以用用户终端来替换。例如，对于将无线基站和用户终端间的通信替换为多个用户终端间(D2D，Device-to-Device)的通信的结构，也可以应用本公开的各方式/实施方式。此时，可以将上述的设备500中的第一通信设备或第二通信设备所具有的功能当作用户终端所具有的功能。此外，“上行”和“下行”等文字也可以替换为“侧”。例如，上行信道也可以替换为侧信道。
同样，本说明书中的用户终端也可以用无线基站来替换。此时，可以将上述的用户终端所具有的功能当作第一通信设备或第二通信设备所具有的功能。
在本说明书中，设为通过基站进行的特定动作根据情况有时也通过其上级节点(upper node)来进行。显然，在具有基站的由一个或多个网络节点(network nodes)构成的网络中，为了与终端间的通信而进行的各种各样的动作可以通过基站、除基站之外的一个以上的网络节点(可以考虑例如移动管理实体(MME，Mobility Management Entity)、服务网关(S-GW，Serving-Gateway)等，但不限于此)、或者它们的组合来进行。
本说明书中说明的各方式/实施方式可以单独使用，也可以组合使用，还可以在执行过程中进行切换来使用。此外，本说明书中说明的各方式/实施方 式的处理步骤、序列、流程图等只要没有矛盾，就可以更换顺序。例如，关于本说明书中说明的方法，以示例性的顺序给出了各种各样的步骤单元，而并不限定于给出的特定顺序。
本说明书中说明的各方式/实施方式可以应用于利用长期演进(LTE，Long Term Evolution)、高级长期演进(LTE-A，LTE-Advanced)、超越长期演进(LTE-B，LTE-Beyond)、超级第3代移动通信系统(SUPER 3G)、高级国际移动通信(IMT-Advanced)、第4代移动通信系统(4G，4th generation mobile communication system)、第5代移动通信系统(5G，5th generation mobile communication system)、未来无线接入(FRA，Future Radio Access)、新无线接入技术(New-RAT，Radio Access Technology)、新无线(NR，New Radio)、新无线接入(NX，New radio access)、新一代无线接入(FX，Future generation radio access)、全球移动通信系统(GSM(注册商标)，Global System for Mobile communications)、码分多址接入3000(CDMA3000)、超级移动宽带(UMB，Ultra Mobile Broadband)、IEEE 920.11(Wi-Fi(注册商标))、IEEE 920.16(WiMAX(注册商标))、IEEE 920.20、超宽带(UWB，Ultra-WideBand)、蓝牙(Bluetooth(注册商标))、其它适当的无线通信方法的系统和/或基于它们而扩展的下一代系统。
本说明书中使用的“根据”这样的记载，只要未在其它段落中明确记载，则并不意味着“仅根据”。换言之，“根据”这样的记载是指“仅根据”和“至少根据”这两者。
本说明书中使用的对使用“第一”、“第二”等名称的单元的任何参照，均非全面限定这些单元的数量或顺序。这些名称可以作为区别两个以上单元的便利方法而在本说明书中使用。因此，第一单元和第二单元的参照并不意味着仅可采用两个单元或者第一单元必须以若干形式占先于第二单元。
本说明书中使用的“判断(确定)(determining)”这样的用语有时包含多种多样的动作。例如，关于“判断(确定)”，可以将计算(calculating)、推算(computing)、处理(processing)、推导(deriving)、调查(investigating)、搜索(looking up)(例如表、数据库、或其它数据结构中的搜索)、确认(ascertaining)等视为是进行“判断(确定)”。此外，关于“判断(确定)”，也可以将接收(receiving)(例如接收信息)、发送(transmitting)(例如发送信息)、输入(input)、输出(output)、存取(accessing)(例如存取内 存中的数据)等视为是进行“判断(确定)”。此外，关于“判断(确定)”，还可以将解决(resolving)、选择(selecting)、选定(choosing)、建立(establishing)、比较(comparing)等视为是进行“判断(确定)”。也就是说，关于“判断(确定)”，可以将若干动作视为是进行“判断(确定)”。
本说明书中使用的“连接的(connected)”、“结合的(coupled)”这样的用语或者它们的任何变形是指两个或两个以上单元间的直接的或间接的任何连接或结合，可以包括以下情况：在相互“连接”或“结合”的两个单元间，存在一个或一个以上的中间单元。单元间的结合或连接可以是物理上的，也可以是逻辑上的，或者还可以是两者的组合。例如，“连接”也可以替换为“接入”。在本说明书中使用时，可以认为两个单元是通过使用一个或一个以上的电线、线缆、和/或印刷电气连接，以及作为若干非限定性且非穷尽性的示例，通过使用具有射频区域、微波区域、和/或光(可见光及不可见光这两者)区域的波长的电磁能等，被相互“连接”或“结合”。
在本说明书或权利要求书中使用“包括(including)”、“包含(comprising)”、以及它们的变形时，这些用语与用语“具备”同样是开放式的。进一步地，在本说明书或权利要求书中使用的用语“或(or)”并非是异或。
以上对本公开进行了详细说明，但对于本领域技术人员而言，显然，本公开并非限定于本说明书中说明的实施方式。本公开在不脱离由权利要求书的记载所确定的本公开的宗旨和范围的前提下，可以作为修改和变更方式来实施。因此，本说明书的记载是以示例说明为目的，对本公开而言并非具有任何限制性的意义。

Claims (10)

  1. 一种用户终端，包括：
    接收单元，被设定为从基站接收用于所述用户终端的签名信息；以及
    控制单元，被设定为根据所接收的签名信息确定所述用户终端的发送功率。
  2. 如权利要求1所述的用户终端，其中所述签名信息包括功率信息，所述功率信息指示关于所述用户终端的发送功率的信息。
  3. 如权利要求2所述的用户终端，其中
    所述控制单元还被设定为根据用户终端的基础功率、用户终端的路损补偿功率、用户终端的基于调制与编码方案的补偿功率以及用户终端的上行链路信道的功率控制调整的补偿功率，确定所述用户终端的发送功率；
    所述功率信息指示所述基础功率、所述路损补偿功率、所述基于调制与编码方案的补偿功率、以及所述上行链路信道的功率控制调整的补偿功率中的至少一个的调整信息。
  4. 如权利要求3所述的用户终端，其中
    所述基础功率包括所述基站为所述基站的小区覆盖范围内的所有用户终端设置的标称功率、以及所述用户终端的专属功率；
    所述功率信息指示所述用户终端的专属功率的调整信息。
  5. 如权利要求3所述的用户终端，其中
    所述路损补偿功率是根据所述用户终端的路损补偿参数和所述用户终端的下行路损而确定的；
    所述功率信息指示所述用户终端的路损补偿参数的调整信息。
  6. 如权利要求3至5任一项所述的用户终端，其中所述控制单元还被设定为根据高层参数确定所述基础功率、所述路损补偿功率、所述基于调制与编码方案的补偿功率、以及所述上行链路信道的功率控制调整的补偿功率中的至少一个的调整信息。
  7. 一种基站，包括：
    控制单元，被设定为确定用于用户终端的签名信息；以及
    发送单元，被设定为将所确定的签名信息发送给所述用户终端。
  8. 如权利要求7所述的基站，其中所述签名信息包括功率信息，所述功 率信息指示关于所述用户终端的发送功率的信息。
  9. 一种由用户终端执行的方法，所述方法包括：
    从基站接收用于所述用户终端的签名信息；以及
    根据所接收的签名信息确定所述用户终端的发送功率。
  10. 一种由基站执行的方法，所述方法包括：
    确定用于用户终端的签名信息；以及
    将所确定的签名信息发送给所述用户终端。
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