WO2017193398A1 - 功率控制方法和装置 - Google Patents
功率控制方法和装置 Download PDFInfo
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- WO2017193398A1 WO2017193398A1 PCT/CN2016/082122 CN2016082122W WO2017193398A1 WO 2017193398 A1 WO2017193398 A1 WO 2017193398A1 CN 2016082122 W CN2016082122 W CN 2016082122W WO 2017193398 A1 WO2017193398 A1 WO 2017193398A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/06—TPC algorithms
- H04W52/08—Closed loop power control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/06—TPC algorithms
- H04W52/10—Open loop power control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/143—Downlink power control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/18—TPC being performed according to specific parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
- H04W52/325—Power control of control or pilot channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
- H04L5/0096—Indication of changes in allocation
- H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/26—Network addressing or numbering for mobility support
Definitions
- Embodiments of the present invention relate to communication technologies, and in particular, to a power control method and apparatus.
- LTE-A Long Term Evolution-Advance
- a carrier aggregation technology is introduced to increase the system transmission bandwidth.
- a user equipment When performing carrier aggregation, a user equipment (User Equipment, UE for short) can usually aggregate a larger number of downlink carriers, and the number of uplink carriers is relatively small.
- some downlink channel measurements may utilize channel dissimilarity features, such as a precoding matrix index (PMI), to obtain a downlink channel by using an uplink transmission sounding reference symbol (SRS). measuring. Since the downlink carrier aggregation capability of the UE is greater than the uplink carrier aggregation capability, there is no uplink transmission on the time division duplex (TDD) carrier of the UE for downlink transmission. To ensure timely transmission of the SRS, carrier handover is required.
- TDD time division duplex
- carrier 1 and carrier 2 are used for downlink transmission.
- carrier switching is performed, carrier 2 is switched to carrier 3, and carrier 3 is used for transmission.
- SRS, and the transmit power of the SRS needs to be controlled to ensure that the SRS is correctly received.
- the parameter setting of the existing SRS power control scheme depends on some related parameters of the Physical Uplink Shared Channel (PUSCH) power control.
- PUSCH Physical Uplink Shared Channel
- the UE cannot obtain the PUSCH power on the switched carrier for transmitting the SRS.
- the relevant parameters of the control therefore, SRS power control cannot be performed, resulting in the SRS not being correctly received.
- the embodiment of the invention provides a power control method and device, so that the SRS is transmitted on the switched carrier with the optimal transmit power to ensure that the SRS is correctly received.
- an embodiment of the present invention provides a power control method, including: acquiring a power control parameter of a sounding reference signal SRS, where the power control parameter of the SRS includes the At least one of a target power parameter value of the SRS, a path loss compensation factor, and a closed loop power control parameter value of the SRS; determining, according to the power control parameter of the SRS, a transmit power of the SRS on the first carrier.
- the UE may calculate the transmit power of the SRS on the switched carrier according to the power control parameter of the newly configured SRS, so that the SRS transmits on the switched carrier with the optimal transmit power to ensure that the SRS is correctly received.
- the first carrier is a carrier that does not transmit a physical uplink shared channel PUSCH.
- the acquiring the power control parameter of the sounding reference signal SRS includes: receiving power control signaling or cross-carrier power control signaling sent by the base station.
- the power control signaling includes open loop power control signaling and/or closed loop power control signaling.
- the acquiring the power control parameter of the sounding reference signal SRS includes: acquiring power control parameters of the SRS from the power control signaling or the cross-carrier power control signaling.
- the power control signaling or the cross-carrier power control signaling includes radio resource control RRC signaling or physical layer signaling.
- the UE can obtain the power control parameters of the SRS in different manners, and the manner of obtaining the power control parameters of the SRS is flexible and variable, and the operation is simple.
- the target power parameter value of the SRS is a parameter value obtained based on a preamble initial receiving target power value; or the target power parameter value of the SRS is based on the initial receiving target power of the preamble The value of the parameter obtained from the value and power adjustment value.
- the obtaining the power control parameter from the power control signaling or the cross-carrier power control signaling includes: controlling, according to the first wireless network temporary identifier RNTI, from the power control
- the power control parameters of the SRS are parsed in signaling or the cross-carrier power control signaling.
- the determining, according to the power control parameter of the SRS, the transmit power of the SRS including: according to a maximum transmit power of the user equipment UE, a transmit power adjustment value of the SRS, and the SRS At least one of a transmission bandwidth, a target power parameter value of the SRS, the path loss compensation factor, and a downlink path loss estimation value obtains a transmission power of the SRS.
- the UE can accurately calculate the transmit power of the SRS and ensure the transmission quality of the SRS.
- the method before determining the transmit power of the SRS according to the power control parameter of the SRS, the method further includes: determining that the SRS is a periodic configuration or a non-periodic configuration.
- the closed loop power control parameter value of the SRS is an absolute value or a relative adjustment value.
- the method before the acquiring the power control parameter of the SRS, the method further includes: acquiring transmission power control TPC information; the TPC information is information that is scrambled by the first wireless network temporary identifier RNTI.
- the acquiring the power control parameter of the SRS includes: parsing, according to the first RNTI, a closed loop power control parameter value of the SRS from the TPC information.
- the method further includes: acquiring downlink control information DCI.
- the acquiring the power control parameter of the SRS includes: acquiring a closed loop power control parameter value of the SRS according to the DCI.
- the DCI if the DCI is control information acquired on the second carrier, the DCI includes at least a first carrier identifier.
- the second carrier is a carrier before handover or any carrier other than the switched carrier
- the first carrier is a switched carrier
- the acquiring the closed loop power control parameter value of the SRS according to the DCI includes: acquiring a closed loop power of the SRS on a carrier corresponding to the first carrier identifier Control parameter values.
- the acquiring the closed-loop power control parameter value of the SRS according to the DCI includes: obtaining the The closed loop power control parameter value of the SRS.
- the UE can obtain the closed loop power control parameter value of the SRS in different manners, and define a new DCI format, so that the UE can obtain the complete power of the SRS in the case of a closed loop. Control parameters to ensure the reliability of SRS transmission.
- the method further includes: at least one of closed loop power control information and a relative adjustment value according to the SRS of the previous subframe.
- the term determines a closed loop power control parameter value of the SRS.
- the closed-loop power control information of the SRS of the previous subframe, ⁇ SRS, c1 (iK SRS ) is the relative adjustment value, and if the SRS is a periodic configuration, the K SRS is a subframe period of the SRS, If the SRS is a non-periodic configuration, the iK SRS is the subframe number of the previous subframe.
- the determining, according to the power control parameter of the SRS, the transmit power of the SRS including: according to a maximum transmit power of the user equipment UE, a transmit power adjustment value of the SRS, and the SRS At least one of a transmission bandwidth, a target power parameter value of the SRS, the path loss compensation factor, a downlink path loss estimate, and a closed loop power control parameter of the SRS obtains a transmit power of the SRS.
- the UE can accurately calculate the transmit power of the SRS in the closed loop condition, and ensure that the SRS can be correctly received in different situations.
- an embodiment of the present invention provides a power control method, including: acquiring transmission power of a symbol overlapping portion of a first subframe and a second subframe; and transmitting, by using the first subframe, a sounding reference on a first carrier a subframe of the signal SRS, where the second subframe is a subframe for transmitting an SRS or a physical channel on the second carrier; if the transmission power is greater than a maximum transmission power of the user equipment UE, controlling the transmission power of the transmission signal
- the transmission signal includes the SRS and/or the physical channel.
- the method before the controlling the transmit power of the transmission signal, the method further comprises: determining that the SRS is a periodic configuration or a non-periodic configuration.
- controlling the transmit power of the transmission signal includes: controlling, according to the periodic configuration of the SRS, the transmit power of the transmit signal; or, according to the non-periodic configuration of the SRS , controlling the transmission power of the transmission signal.
- the controlling the transmit power of the transmission signal includes: discarding the SRS or performing power scaling on the SRS.
- Controlling includes: discarding the PUSCH or performing power scaling on the PUSCH.
- the physical channel is a physical uplink shared channel PUSCH, and the PUSCH includes uplink control information UCI; then the transmit power of the transmission signal is controlled.
- the method includes: discarding the SRS or performing power scaling on the SRS.
- the physical channel is a physical uplink control channel PUCCH; and the controlling the transmit power of the transmission signal includes: discarding the SRS or Performing power scaling on the SRS; or discarding the PUCCH or performing power scaling on the PUCCH.
- the physical channel is a physical uplink control channel PUCCH, and the PUCCH includes a hybrid automatic repeat request (HARQ);
- the transmit power is controlled, including: discarding the SRS or performing power scaling on the SRS.
- HARQ hybrid automatic repeat request
- the physical channel is a physical uplink control channel PUCCH, and the PUCCH includes only channel state information CSI; Controlling the power includes: discarding the SRS or performing power scaling on the SRS; or discarding the PUCCH or performing power scaling on the PUCCH.
- the physical channel is a physical random access channel PRACH, and the PRACH is parallel; the controlling the transmit power of the transmission signal, including: Discarding the SRS or power scaling the SRS.
- an embodiment of the present invention provides a power control method, where the method includes: acquiring a power control parameter of a sounding reference signal SRS on a first carrier, where the power control parameter of the SRS includes a target power parameter value of the SRS. And at least one of a path loss compensation factor and a closed loop power control parameter value of the SRS; sending, to the user equipment UE, a power control parameter of the SRS, to enable the UE to determine the power control parameter according to the SRS The transmit power of the SRS on the first carrier.
- the first carrier is a carrier that does not transmit a physical uplink shared channel PUSCH.
- the power control parameter of the SRS is sent to the user equipment UE, and the power control parameter of the SRS is sent to the UE by using power control signaling or cross-carrier power control signaling.
- the power control signaling includes open loop power control signaling and/or closed loop power control signaling.
- the power control signaling or the cross-carrier power control signaling includes radio resource control RRC signaling or physical layer signaling.
- the target power parameter value of the SRS is a parameter value obtained based on a preamble initial receiving target power value; or the target power parameter value of the SRS is based on the initial receiving target power of the preamble The value of the parameter obtained from the value and power adjustment value.
- the sending the power control parameter of the SRS to the UE by using power control signaling or cross-carrier power control signaling includes: performing the SRS according to the first wireless network temporary identifier RNTI Power control parameters are scrambled to generate the power control signaling or Trans-carrier power control signaling; sending the power control signaling or the cross-carrier power control signaling to the UE.
- the SRS is a periodic configuration or a non-periodic configuration.
- the closed loop power control parameter value of the SRS is an absolute value or a relative adjustment value.
- the method further includes: transmitting, to the UE, transmission power control TPC information, so that the UE parses a closed loop power control parameter value of the SRS from the TPC information;
- the TPC information is information scrambled by the first radio network temporary identifier RNTI.
- the method further includes: sending downlink control information DCI to the UE, so that the UE according to the The DCI acquires a closed loop power control parameter value of the SRS.
- the DCI is the control information acquired on the second carrier
- the DCI includes at least a first carrier identifier, where the DCI is used to instruct the UE to acquire the first carrier identifier.
- the second carrier is a carrier before handover or any carrier other than the switched carrier
- the first carrier is a switched carrier
- the DCI is used to indicate that the UE acquires the closed-loop power control parameter value of the SRS from the DCI.
- an embodiment of the present invention provides a power control apparatus, including:
- An acquiring module configured to acquire a power control parameter of the sounding reference signal SRS, where the power control parameter of the SRS includes at least one of a target power parameter value of the SRS, a path loss compensation factor, and a closed loop power control parameter value of the SRS ;
- a determining module configured to determine, according to the power control parameter of the SRS, a transmit power of the SRS on the first carrier.
- the first carrier is a carrier that does not transmit a physical uplink shared channel PUSCH.
- the acquiring module is specifically configured to receive power control sent by the base station. Signaling or cross-carrier power control signaling.
- the power control signaling includes open loop power control signaling and/or closed loop power control signaling.
- the acquiring module is further configured to acquire power control parameters of the SRS from the power control signaling or the cross-carrier power control signaling.
- the power control signaling or the cross-carrier power control signaling includes radio resource control RRC signaling or physical layer signaling.
- the target power parameter value of the SRS is a parameter value obtained based on an initial received target power value of the preamble
- the target power parameter value of the SRS is a parameter value obtained based on the initial received target power value and the power adjustment value of the preamble.
- the acquiring module acquires the power control parameter from the power control signaling or the cross-carrier power control signaling, including:
- the acquiring module parses the power control parameter of the SRS from the power control signaling or the cross-carrier power control signaling according to the first radio network temporary identifier RNTI.
- the determining module is specifically configured to: according to a maximum transmit power of the user equipment UE, a transmit power adjustment value of the SRS, a transmission bandwidth of the SRS, a target power parameter value of the SRS, At least one of a path loss compensation factor and a downlink path loss estimate obtains a transmit power of the SRS.
- the determining module is further configured to determine that the SRS is a periodic configuration or a non-periodic configuration.
- the closed loop power control parameter value of the SRS is an absolute value or a relative adjustment value.
- the acquiring module is further configured to acquire transmission power control TPC information; the TPC information is information that is scrambled by the first wireless network temporary identifier RNTI.
- the acquiring module acquires power control parameters of the SRS, including:
- the acquiring module parses the closed loop power control parameter value of the SRS from the TPC information according to the first RNTI.
- the power control parameter of the SRS includes a closed loop power control parameter value of the SRS
- the acquiring module is further configured to acquire downlink control information DCI.
- the acquiring module acquires power control parameters of the SRS, including:
- the acquiring module acquires a closed loop power control parameter value of the SRS according to the DCI.
- the DCI if the DCI is control information acquired on the second carrier, the DCI includes at least a first carrier identifier.
- the second carrier is a carrier before handover or any carrier other than the switched carrier
- the first carrier is a switched carrier
- the acquiring module acquires the closed loop power control parameter value of the SRS according to the DCI, including:
- the acquiring module acquires a closed loop power control parameter value of the SRS on the carrier corresponding to the first carrier identifier.
- the DCI is control information acquired on the first carrier
- the closed-loop power control parameter value of the SRS according to the DCI including:
- the acquiring module acquires a closed loop power control parameter value of the SRS from the DCI.
- the closed loop power control parameter value of the SRS is a relative adjustment value
- the determining module is further configured to determine a closed loop power control parameter value of the SRS according to at least one of closed loop power control information and a relative adjustment value of the SRS of the previous subframe.
- the determining module determines the closed loop power control parameter value of the SRS according to at least one of closed loop power control information and a relative adjustment value of the SRS of the previous subframe, including:
- the determining module determines, according to the power control parameter of the SRS, the transmit power of the SRS, including:
- the determining module is configured according to a maximum transmit power of the user equipment UE, a transmit power adjustment value of the SRS, a transmission bandwidth of the SRS, a target power parameter value of the SRS, the path loss compensation factor, and a downlink path loss estimation value. And transmitting, by the at least one of the closed loop power control parameters of the SRS, the transmit power of the SRS.
- the determining module determines, according to the power control parameter of the SRS, the transmit power of the SRS, including:
- an embodiment of the present invention provides a power control apparatus, including:
- An acquiring module configured to acquire transmission power of a symbol overlapping portion of the first subframe and the second subframe, where the first subframe is a subframe that transmits a sounding reference signal SRS on the first carrier, and the second subframe a subframe for transmitting an SRS or a physical channel on a second carrier;
- a processing module configured to control, if the transmission power is greater than a maximum transmission power of the user equipment UE, the transmission power of the transmission signal, where the transmission signal includes the SRS and/or the physical channel.
- the processing module is further configured to determine that the SRS is a periodic configuration or a non-periodic configuration.
- the processing module controls the transmit power of the transmitted signal, including:
- the processing module controls transmission power of the transmission signal according to the periodic configuration of the SRS
- the processing module controls transmission power of the transmission signal according to the aperiodic configuration of the SRS.
- the processing module controls the transmit power of the transmission signal, including:
- the processing module discards the SRS or performs power scaling on the SRS.
- the physical channel is a physical uplink shared channel PUSCH, and the PUSCH does not include uplink control information UCI;
- the processing module then controls the transmit power of the transmitted signal, including:
- the processing module discards the PUSCH or performs power scaling on the PUSCH.
- the physical channel is a physical uplink shared channel PUSCH, and the PUSCH includes uplink control information UCI;
- the processing module then controls the transmit power of the transmitted signal, including:
- the processing module discards the SRS or performs power scaling on the SRS.
- the physical channel is a physical uplink control channel PUCCH
- the processing module then controls the transmit power of the transmitted signal, including:
- the processing module discards the SRS or performs power scaling on the SRS
- the processing module discards the PUCCH or performs power scaling on the PUCCH.
- the physical channel is a physical uplink control channel PUCCH, and the PUCCH includes a hybrid automatic repeat request HARQ;
- the processing module then controls the transmit power of the transmitted signal, including:
- the processing module discards the SRS or performs power scaling on the SRS.
- the physical channel is a physical uplink control channel PUCCH, and the PUCCH includes only channel state information CSI;
- the processing module then controls the transmit power of the transmitted signal, including:
- the processing module discards the SRS or performs power scaling on the SRS
- the processing module discards the PUCCH or performs power scaling on the PUCCH.
- the physical channel is a physical random access channel PRACH, and the PRACH is parallel;
- the processing module then controls the transmit power of the transmitted signal, including:
- the processing module discards the SRS or performs power scaling on the SRS.
- an embodiment of the present invention provides a power control apparatus, including:
- An obtaining module configured to acquire a power control parameter of the sounding reference signal SRS on the first carrier, where the power control parameter of the SRS includes a target power parameter value of the SRS, a path loss compensation factor, and a closed loop power control parameter value of the SRS At least one of them;
- a sending module configured to send the power control parameter of the SRS to the user equipment UE, so that the UE determines a transmit power of the SRS on the first carrier according to the power control parameter of the SRS.
- the first carrier is a carrier that does not transmit a physical uplink shared channel PUSCH.
- the sending module is specifically configured to send the power control parameter of the SRS to the UE by using power control signaling or cross-carrier power control signaling.
- the power control signaling includes open loop power control signaling and/or closed loop power control signaling.
- the power control signaling or the cross-carrier power control signaling includes radio resource control RRC signaling or physical layer signaling.
- the target power parameter value of the SRS is a parameter value obtained based on an initial received target power value of the preamble
- the target power parameter value of the SRS is a parameter value obtained based on the initial received target power value and the power adjustment value of the preamble.
- the sending module sends the power control parameter of the SRS to the UE by using power control signaling or cross-carrier power control signaling, including:
- the SRS is a periodic configuration or a non-periodic configuration.
- the closed loop power control parameter value of the SRS is an absolute value or a relative adjustment value.
- the sending module is further configured to send, to the UE, transmit power control TPC information, so that the UE parses a closed loop power control parameter value of the SRS from the TPC information;
- the TPC information is information that is scrambled by the first wireless network temporary identifier RNTI.
- the power control parameter of the SRS includes a closed loop power control parameter value of the SRS
- the sending module is further configured to send downlink control information DCI to the UE, so that the UE acquires a closed loop power control parameter value of the SRS according to the DCI.
- the DCI is the control information acquired on the second carrier
- the DCI includes at least a first carrier identifier, where the DCI is used to instruct the UE to acquire the first carrier identifier.
- the second carrier is a carrier before handover or any carrier other than the switched carrier
- the first carrier is a switched carrier
- the DCI is used to indicate that the UE acquires the closed-loop power control parameter value of the SRS from the DCI.
- FIG. 1 is a schematic diagram of an application scenario of a power control method according to an embodiment of the present disclosure
- FIG. 2 is a flowchart of a power control method according to Embodiment 1 of the present invention.
- FIG. 3 is a flowchart of a power control method according to Embodiment 2 of the present invention.
- FIG. 5 is a flowchart of a power control method according to Embodiment 4 of the present invention.
- FIG. 6 is a structural diagram of a power control apparatus according to Embodiment 5 of the present invention.
- FIG. 7 is a structural diagram of a power control apparatus according to Embodiment 6 of the present invention.
- FIG. 8 is a structural diagram of a power control apparatus according to Embodiment 7 of the present invention.
- FIG. 9 is a structural diagram of a UE according to Embodiment 8 of the present invention.
- FIG. 10 is a structural diagram of a base station according to Embodiment 9 of the present invention.
- FIG. 1 is a schematic diagram of an application scenario of a power control method according to an embodiment of the present invention.
- the method is applied to a wireless communication system, such as an LTE-A system.
- the scenario includes a network device 1, a user terminal 2, and a user terminal 3.
- the power control method provided by the present application is mainly used for data transmission between a network device and a user terminal. It should be noted that other network devices and user terminals may be included in the scenario, and FIG. 1 is only an exemplary description, and is not limited thereto.
- the user terminal may be a device that provides voice and/or data connectivity to the user, a handheld device with a wireless connection function, or other processing device connected to the wireless modem.
- the wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a mobile terminal.
- RAN Radio Access Network
- the computer for example, can be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with the wireless access network.
- the network device involved in the embodiments of the present invention may be a base station, or an access point, or may refer to a device in the access network that communicates with the wireless terminal through one or more sectors on the air interface.
- the base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network.
- IP Internet Protocol
- the base station can also coordinate attribute management of the air interface.
- the base station can be in GSM or CDMA
- the Base Transceiver Station (BTS) may be a base station (NodeB) in WCDMA, or may be an evolved base station (eNB or e-NodeB, evolutional Node B) in LTE, which is not limited in this application.
- FIG. 2 is a flowchart of a power control method according to Embodiment 1 of the present invention.
- the execution body of the method is a UE. As shown in FIG. 2, the method includes the following steps:
- Step 101 Acquire a power control parameter of the SRS, where the power control parameter of the SRS includes at least one of a target power parameter value of the SRS, a path loss compensation factor, and a closed loop power control parameter value of the SRS.
- the UE may obtain the power control parameters of the SRS in different manners.
- the base station transmits the power control parameters of the pre-configured SRS to the UE by using a carrier for transmitting the SRS before or after the handover; or
- the base station sends the target power parameter value and the path loss compensation factor of the SRS to the UE through physical layer signaling or control signaling, and then uses the transmission power control (TPC) information to indicate the closed loop power control parameter value of the SRS.
- TPC transmission power control
- Step 102 Determine, according to a power control parameter of the SRS, a transmit power of the SRS on the first carrier.
- the first carrier is a carrier that performs SRS-based carrier switching, and is also called a non-uplink carrier, in order to perform SRS transmission on the carrier.
- the UE may calculate the transmit power of the SRS on the first carrier according to the power control parameter of the SRS, so that the SRS is transmitted on the first carrier with an appropriate transmit power.
- the UE acquires a power control parameter of the SRS including at least one of a target power parameter value, a path loss compensation factor, and a closed loop power control parameter value of the SRS, and determines the SRS according to the power control parameter of the SRS.
- the UE may calculate the transmit power of the SRS on the switched carrier according to the power control parameter of the newly configured SRS, so that the SRS transmits on the switched carrier with the optimal transmit power, ensuring The SRS is received correctly.
- the first carrier is a carrier that does not send a Physical Uplink Shared Channel (PUSCH). That is, the first carrier is used to transmit the SRS, and the PUSCH is not transmitted.
- PUSCH Physical Uplink Shared Channel
- FIG. 3 is a flowchart of a power control method according to Embodiment 2 of the present invention.
- the method shown in FIG. 3 is a specific implementation process of step 101. As shown in FIG. 3, the method includes the following steps:
- Step 201 Receive power control signaling or cross-carrier power control signaling sent by the base station; the power control signaling includes open loop power control signaling and/or closed loop power control signaling.
- the base station may send the power control signaling on the carrier after the handover to the UE, or may indicate to the UE by using the cross-carrier power control signaling.
- the cross-carrier power control signaling includes receiving, on a pre-switching carrier where the SRS is located, or a carrier of the non-switched carrier, signaling for determining a related power configuration of the SRS transmission on the carrier after the SRS handover, that is,
- the cross-carrier power control signaling is signaling sent by the base station on the carrier before the handover or the carrier of any non-switched carrier, and the signaling includes the power control parameter of the SRS on the switched carrier.
- the open loop power control signaling may include a target power parameter value and a path loss compensation factor of the SRS.
- the closed loop power control signaling may include a target power parameter value of the SRS, a path loss compensation factor, and a closed loop power control parameter value of the SRS.
- the power control signaling or the cross-carrier power control signaling includes Radio Resource Control (RRC) signaling or physical layer signaling.
- RRC Radio Resource Control
- Step 202 Acquire power control parameters of the SRS from power control signaling or cross-carrier power control signaling.
- the UE after receiving the power control signaling or the cross-carrier power control signaling delivered by the base station, the UE parses the power control signaling or the cross-carrier power control signaling to obtain the power control parameters of the SRS.
- the target power parameter value of the SRS is a parameter value obtained based on the initial received target power value of the preamble; or the target power parameter value of the SRS is a parameter value obtained based on the initial received target power value and the power adjustment value of the preamble.
- the base station may send the initial received target power value to the UE by using the power control signaling or the cross-carrier power control signaling, and the UE calculates the target power parameter value of the SRS according to the initial received target power value of the preamble.
- the base station may also add the initial received target power value and the power adjustment value of the preamble to calculate the target power parameter value of the SRS, and then calculate the target power parameter of the SRS by using power control signaling or cross-carrier power control signaling.
- the value is sent to the UE.
- the power adjustment value may also be obtained through a specially defined response message of a Random Access Channel (RACH).
- RACH Random Access Channel
- the power adjustment value is also referred to as a power offset or power offset.
- the obtaining the power control parameter from the power control signaling or the cross-carrier power control signaling includes: according to the first wireless network temporary identifier (Radio Network Tempory Identity, referred to as RNTI), the power control parameters of the SRS are parsed from the power control signaling or the cross-carrier power control signaling.
- RNTI Radio Network Tempory Identity
- the first RNTI is different from the existing TPC-RNTI in the prior art, and the first RNTI is the RNTI redefined in the present application, and the first RNTI may be named TPC-SRS-RNTI, the first RNTI. And used to scramble or mask the power control parameters of the SRS, and carry the scrambled parameters to the UE in the physical layer signaling.
- the UE receives the power control signaling or the cross-carrier power control signaling sent by the base station, and obtains the power control parameter of the SRS from the power control signaling or the cross-carrier power control signaling, and the base station may use the RRC.
- Signaling or MAC signaling or physical layer signaling indicates the power control parameters of the SRS to the UE, and the power control parameters of the SRS can be scrambled by the newly defined RNTI, and the base station controls the power of the SRS in different manners.
- the parameters are indicated to the UE, and the method is flexible and easy to operate.
- determining a transmit power of the SRS according to the power control parameter of the SRS including: a maximum transmit power of the user equipment UE, a transmit power adjustment value of the SRS, a transmission bandwidth of the SRS, a target power parameter value of the SRS, and a path loss compensation factor. And transmitting, by at least one of the downlink path loss estimates, the transmit power of the SRS.
- the method before determining the transmit power of the SRS according to the power control parameter of the SRS, the method further includes: determining that the SRS is a periodic configuration or a non-periodic configuration.
- the UE may determine whether the SRS is configured periodically or aperiodically, and then determine the transmit power of the SRS according to the periodic configuration feature of the SRS and the power control parameter of the SRS. Ensure that the SRS is properly received in all situations.
- the closed loop power control parameter value of the SRS is an absolute value or a relative adjustment value.
- the closed loop power control parameter value of the SRS is an absolute value, and the absolute value can be directly used to calculate the transmit power of the SRS. If the closed loop power control parameter value of the SRS is a relative adjustment value, the first adjustment value needs to be calculated according to the relative adjustment value.
- the closed loop power control parameter value of the SRS calculates the transmit power of the SRS using the closed loop power control parameter value of the SRS obtained by the calculation.
- the method further includes: determining, according to at least one of the closed loop power control information and the relative adjustment value of the SRS of the previous subframe, a closed loop power control parameter of the SRS. value.
- determining the transmit power of the SRS according to the power control parameter of the SRS including: according to the maximum transmit power of the user equipment UE, the transmit power adjustment value of the SRS, the transmission bandwidth of the SRS, the target power parameter value of the SRS, the path loss compensation factor, At least one of the downlink path loss estimate and the closed loop power control parameter of the SRS obtains the transmit power of the SRS.
- the method before acquiring the power control parameter of the SRS, the method further includes: acquiring transmission power control TPC information; the TPC information is information that is scrambled or masked by the first RNTI.
- acquiring the power control parameter of the SRS includes: parsing the closed loop power control parameter value of the SRS from the TPC information according to the first RNTI.
- the closed loop power control parameter value of the SRS may be included in the TPC information scrambled by the first RNTI, and the first RNTI is previously indicated to the UE, and the UE may descramble the TPC information according to the first RNTI. , obtain the closed loop power control parameter value of the SRS.
- the method further includes: obtaining downlink control information (Downlink Control Information, DCI for short) before acquiring the power control parameter of the SRS.
- DCI Downlink Control Information
- acquiring the power control parameter of the SRS includes: acquiring a closed loop power control parameter value of the SRS according to the DCI.
- DCIs of different formats can be defined, as follows:
- the first DCI format if the DCI is the control information acquired on the second carrier, the DCI includes at least the first carrier identifier.
- the second carrier is a carrier before handover or any carrier other than the switched carrier, and the first carrier is a carrier after handover.
- acquiring the closed loop power control parameter value of the SRS according to the DCI includes: acquiring a closed loop power control parameter value of the SRS on the carrier corresponding to the first carrier identifier.
- the DCI acquired on the carrier before the handover needs to include at least the identifier of the switched carrier, so that the UE acquires the SRS on the carrier corresponding to the carrier identifier according to the first carrier identifier. Closed loop power control parameter value.
- the second DCI format is: if the DCI is the control information acquired on the first carrier, the closed loop power control parameter value of the SRS is obtained according to the DCI, and the closed loop power control parameter value of the SRS is obtained from the DCI.
- the closed loop power control parameter value of the SRS in the new DCI format is directly applied to perform SRS transmission power control.
- FIG. 4 is a flowchart of a power control method according to Embodiment 3 of the present invention.
- the SRS-based carrier switching is triggered, if the symbols of two subframes overlap, and the transmission power of the overlapping portion exceeds the maximum of the UE. How to perform power control when transmitting power. As shown in Figure 4, the method includes the following steps:
- Step 301 Acquire transmission power of a symbol overlapping portion of the first subframe and the second subframe.
- the first subframe is a subframe that transmits the sounding reference signal SRS on the first carrier
- the second subframe is on the second carrier.
- the symbol on the subframe for transmitting the sounding reference signal SRS on the first carrier overlaps with the symbol of the subframe for transmitting the SRS or the physical channel on the second carrier, the symbol needs to be calculated.
- the transmission power of the overlapping portion For example, when the UE is configured with a Timing Advance Group (TAG), if a subframe i on a hypothetical serving carrier/cell in one TAG, and a symbol on the subframe i used by the UE to transmit the SRS The transmission power of the symbol overlapping portion is calculated when overlapping with the symbols on the subframe i or the subframe i+1 for transmitting the PUCCH on the other serving carrier/cell.
- TAG Timing Advance Group
- Step 302 If the transmission power is greater than the maximum transmission power of the UE, control the transmission power of the transmission signal, where the transmission signal includes an SRS and/or a physical channel.
- the transmission power of the transmission signal is controlled. For example, if the transmission power is greater than the maximum transmission power of the UE, the partial transmission signal is appropriately discarded, or the transmission is performed. The signal is power scaled.
- the UE acquires the transmission power of the first subframe in which the sounding reference signal SRS is transmitted on the first carrier and the symbol overlap portion of the second subframe in which the SRS or the physical channel is transmitted on the second carrier, If the transmission power is greater than the maximum transmission power of the UE, the transmission power of the transmission signal is controlled, so that the transmission signal is transmitted at an appropriate power to ensure the transmission efficiency of the transmission signal.
- the method before controlling the transmit power of the transmission signal, the method further includes: determining that the SRS is a periodic configuration or a non-periodic configuration.
- controlling the transmit power of the transmission signal includes: controlling the transmit power of the transmit signal according to the periodic configuration of the SRS; or controlling the transmit power of the transmit signal according to the aperiodic configuration of the SRS.
- the discarded partial transmission signal or the partial transmission signal may be selected for power scaling according to the periodic characteristics of the SRS.
- the transmit power of the transmission signal is controlled, including: discarding the SRS or performing power scaling on the SRS.
- the physical channel is a physical uplink shared channel PUSCH
- the PUSCH does not include the uplink control information UCI; and the transmission power of the transmission signal is controlled, including: discarding the PUSCH or performing power scaling on the PUSCH.
- the physical channel is the physical uplink shared channel PUSCH, and the PUSCH includes the uplink control information UCI; and the transmit power of the transmission signal is controlled, including: discarding the SRS or performing power scaling on the SRS.
- the physical channel is a physical uplink control channel (PUCCH), and the transmit power of the transmission signal is controlled, including: discarding the SRS or performing power scaling on the SRS; or discarding the PUCCH or the pair The PUCCH performs power scaling.
- PUCCH physical uplink control channel
- the physical channel is a physical uplink control channel PUCCH
- the PUCCH includes a hybrid automatic repeat request (HARQ)
- the transmit power of the transmission signal is controlled, including: discarding the SRS or the SRS Perform power scaling.
- HARQ hybrid automatic repeat request
- the transmit power of the transmission signal is controlled, including: discarding the SRS or the SRS. Perform power scaling; either, discard the PUCCH or power scale the PUCCH.
- CSI Channel State Information
- the SRS is a non-periodic configuration
- the physical channel is a PUCCH
- the PUCCH includes only the CSI, and/or, when the PUCCH does not include a Hybrid Automatic Repeat ReQuest (HARQ), the transmission signal is transmitted.
- the transmit power is controlled, including: discarding the SRS or performing power scaling on the SRS; or discarding the PUCCH or performing power scaling on the PUCCH.
- the physical channel is a physical random access channel (PRACH), and the PRACH is parallel; the transmit power of the transmission signal is controlled, including: discarding the SRS or performing power scaling on the SRS.
- PRACH physical random access channel
- the first case is a first case:
- the UE When the UE is configured with multiple TAGs, the UE is used to transmit the symbols on the subframe i of the SRS and the subframes i/ on the other serving carrier/cell for the subframe i on one hypothetical serving carrier/cell in one TAG.
- subframe i+1 is used for symbol overlap of PUCCH/PUSCH, if the transmission power of the symbol overlapping portion exceeds the maximum transmission power of the UE, it is divided into the following cases:
- the UE discards the SRS transmission or performs power scaling on the SRS transmission.
- the UE discards the PUSCH.
- the power is transmitted or the PUSCH transmission is power scaled, or the UE discards the SRS transmission or power scales the SRS transmission.
- the UE discards the SRS transmission or performs power scaling on the SRS transmission.
- the UE discards the SRS transmission or performs power scaling on the SRS transmission, or the UE discards the PUSCH transmission or Power scaling of PUSCH transmissions.
- the SRS is configured aperiodically, if the transmission power in any overlapping symbol portion exceeds the maximum transmission power of the UE, there is a PUCCH and the PUCCH includes a HARQ Hybrid Automatic Repeat ReQuest (HARQ), The UE discards the SRS transmission or power scales the SRS transmission.
- HARQ Hybrid Automatic Repeat ReQuest
- the second case is a first case
- a symbol on subframe i for performing SRS transmission on one assumed service carrier/cell, and another service carrier/cell for transmitting SRS When the symbols on subframe i overlap, and/or overlap with the symbols on subframe i or subframe i+1 for PUCCH/PUSCH transmission on other serving carriers/cells, if the symbol overlap portion exceeds the entire rate.
- the UE discards the SRS transmission or performs power scaling on the SRS transmission.
- the SRS is configured aperiodically, if the transmission power in any overlapping symbol portion is exceeded
- the UE discards the PUSCH transmission or performs power scaling on the PUSCH transmission, or the UE discards the SRS transmission or performs power scaling on the SRS transmission.
- the UE discards the SRS transmission or SRS transmission for power scaling.
- the UE discards the SRS transmission or performs power scaling on the SRS transmission, or the UE discards the PUSCH transmission or Power scaling of PUSCH transmissions.
- the UE discards the SRS transmission or performs power scaling on the SRS transmission.
- the UE discards or SRS transmission or PUCCH; or performs SRS transmission Power scaling or power scaling of the PUCCH.
- the third case is a first case.
- the UE When the UE is configured with multiple TAGs, the UE will transmit a Physical Random Access Channel (PRACH) on a secondary serving carrier/cell, the PRACH being parallel to one of the different serving carriers/cells for SRS transmission.
- PRACH Physical Random Access Channel
- the symbol on the subframe is transmitted, if the transmission power of the overlapping portion of the symbol exceeds the maximum transmission power of the UE, it is divided into the following cases:
- the UE discards the SRS transmission or performs power scaling on the SRS transmission.
- the UE discards the SRS transmission or performs power scaling on the SRS transmission.
- FIG. 5 is a flowchart of a power control method according to Embodiment 4 of the present invention.
- the execution body of the method is a base station. As shown in FIG. 5, the method includes the following steps:
- Step 401 Obtain a power control parameter of the SRS on the first carrier, where the power control parameter of the SRS includes at least one of a target power parameter value of the SRS, a path loss compensation factor, and a closed loop power control parameter value of the SRS.
- the power control parameters of the SRS are specifically configured.
- Step 402 Send the power control parameter of the SRS to the user equipment UE, so that the UE determines the transmit power of the SRS on the first carrier according to the power control parameter of the SRS.
- the base station may send the power control parameters of the SRS to the UE in different manners. For example, the base station transmits the power control parameters of the pre-configured SRS to the UE by using the switched carrier for transmitting the SRS; or The base station sends the target power parameter value and the path loss compensation factor of the SRS to the UE through physical layer signaling or control signaling, and then uses the transmission power control (TPC) information to indicate the closed loop power control parameter value of the SRS. To the UE; or otherwise transmit each value in the power control parameters of the SRS to the UE. The UE may calculate the transmit power of the SRS on the first carrier according to the power control parameter of the SRS, so that the SRS is transmitted on the first carrier with an appropriate transmit power.
- TPC transmission power control
- the base station acquires the power control parameter of the SRS including the target power parameter value, the path loss compensation factor, and the closed loop power control parameter value of the SRS on the first carrier, and the SRS
- the power control parameter is sent to the user equipment UE, so that the UE determines the transmit power of the SRS on the first carrier according to the power control parameter of the SRS, so that the UE can calculate the SRS on the switched carrier according to the power control parameter of the newly configured SRS.
- the transmit power is such that the SRS transmits on the switched carrier with the optimal transmit power to ensure that the SRS is correctly received.
- the first carrier is a carrier that does not transmit a PUSCH.
- the sending the power control parameter of the SRS to the user equipment UE includes: transmitting power control parameters of the SRS to the UE by using power control signaling or cross-carrier power control signaling.
- the power control signaling includes open loop power control signaling and/or closed loop power control signaling.
- the power control signaling or the cross-carrier power control signaling includes RRC signaling or physical layer signaling.
- the target power parameter value of the SRS is a parameter value obtained based on the initial received target power value of the preamble; or the target power parameter value of the SRS is based on the initial received target power value of the preamble. And the parameter value obtained from the power adjustment value.
- the power control parameter of the SRS is sent to the UE by using power control signaling or cross-carrier power control signaling, including: scrambling the power control parameter of the SRS according to the first RNTI, to generate power control signaling or cross-carrier Power control signaling; transmitting power control signaling or cross-carrier power control signaling to the UE.
- the SRS is a periodic configuration or a non-periodic configuration.
- the closed loop power control parameter value of the SRS is an absolute value or a relative adjustment value.
- the method further includes: transmitting TPC information to the UE, so that the UE parses out the closed loop power control parameter value of the SRS from the TPC information; the TPC information is information that is scrambled by the first wireless network temporary identifier RNTI.
- the method further includes: sending downlink control information DCI to the UE, so that the UE acquires the closed loop power control parameter value of the SRS according to the DCI.
- the DCI is the control information acquired on the second carrier
- the DCI includes at least a first carrier identifier, where the DCI is used to indicate that the UE acquires a closed loop power control parameter value of the SRS on the carrier corresponding to the first carrier identifier.
- the second carrier is a carrier before handover or any carrier other than the switched carrier, and the first carrier is a carrier after handover.
- the DCI is used to indicate that the UE obtains the closed loop power control parameter value of the SRS from the DCI.
- the power control method provided in this embodiment is performed by the base station, and corresponds to the power control method on the UE side.
- the implementation principle and detailed description of the specific technical features can refer to the power of the UE side according to the embodiments in FIG. 2 to FIG. 4. Control method, no longer repeat here.
- FIG. 6 is a structural diagram of a power control apparatus according to Embodiment 5 of the present invention.
- the apparatus includes an acquisition module 11 and a determination module 12.
- the obtaining module 11 is configured to acquire a power control parameter of the sounding reference signal SRS, where the power control parameter of the SRS includes at least one of a target power parameter value of the SRS, a path loss compensation factor, and a closed loop power control parameter value of the SRS;
- the determining module 12 is configured to: The transmit power of the SRS on the first carrier is determined according to the power control parameter of the SRS.
- the device of this embodiment can be used to implement the technical solution of the method embodiment shown in FIG. 2, in fact The present principle and technical effects are similar and will not be described here.
- the first carrier is a carrier that does not send the physical uplink shared channel PUSCH.
- the obtaining module 11 is specifically configured to receive power control signaling or cross-carrier power control signaling sent by the base station.
- the power control signaling includes open loop power control signaling and/or closed loop power control signaling.
- the obtaining module 11 is further configured to obtain power control parameters of the SRS from the power control signaling or the cross-carrier power control signaling.
- the power control signaling or the cross-carrier power control signaling includes radio resource control RRC signaling or physical layer signaling.
- the target power parameter value of the SRS is a parameter value obtained based on the initial received target power value of the preamble; or the target power parameter value of the SRS is a parameter value obtained based on the initial received target power value and the power adjustment value of the preamble.
- the obtaining module 11 obtains the power control parameter from the power control signaling or the cross-carrier power control signaling, including: the obtaining module 11 according to the first wireless network temporary identifier RNTI, the power control signaling or the cross-carrier power control signal.
- the power control parameters of the SRS are parsed out in the order.
- the determining module 12 is specifically configured to: according to a maximum transmit power of the user equipment UE, a transmit power adjustment value of the SRS, a transmission bandwidth of the SRS, a target power parameter value of the SRS, a path loss compensation factor, and a downlink path loss estimation value. At least one of the transmission powers of the SRS is obtained.
- the determining module 12 is further configured to determine whether the SRS is a periodic configuration or a non-periodic configuration.
- the closed loop power control parameter value of the SRS is an absolute value or a relative adjusted value.
- the obtaining module 11 is further configured to acquire transmission power control TPC information, where the TPC information is information that is scrambled by the first wireless network temporary identifier RNTI.
- the obtaining module 11 acquires power control parameters of the SRS, including: acquiring the root module 11 According to the first RNTI, the closed loop power control parameter value of the SRS is parsed from the TPC information.
- the acquiring module 11 is further configured to obtain the downlink control information DCI.
- the acquiring module 11 acquires the power control parameter of the SRS, where the acquiring module 11 acquires the closed loop power control parameter value of the SRS according to the DCI.
- the DCI includes at least the first carrier identifier.
- the second carrier is a carrier before handover or any carrier other than the switched carrier
- the first carrier is a switched carrier
- the acquiring module 11 acquires the closed-loop power control parameter value of the SRS according to the DCI, and the acquiring module 11 acquires the closed-loop power control parameter value of the SRS on the carrier corresponding to the first carrier identifier.
- the acquiring module 11 acquires the closed-loop power control parameter value of the SRS according to the DCI, and the acquiring module 11 obtains the closed-loop power control parameter value of the SRS from the DCI.
- the determining module 12 is further configured to determine a closed loop power of the SRS according to at least one of closed loop power control information and a relative adjustment value of the SRS of the previous subframe. Control parameter values.
- the closed-loop power control information of the SRS of the subframe, ⁇ SRS, c1 (iK SRS ) is a relative adjustment value. If the SRS is a periodic configuration, the K SRS is a subframe period of the SRS, and if the SRS is a non-periodic configuration, the iK The SRS is the subframe number of the previous subframe.
- the determining module 12 determines the transmit power of the SRS according to the power control parameter of the SRS, including: determining, by the module 12, the maximum transmit power of the user equipment, the transmit power adjustment value of the SRS, the transmission bandwidth of the SRS, and the target power parameter of the SRS.
- the transmit power of the SRS is obtained by at least one of a value, a path loss compensation factor, a downlink path loss estimate, and a closed loop power control parameter of the SRS.
- the device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 2 or 3.
- the implementation principle and technical effects are similar, and details are not described herein again.
- FIG. 7 is a structural diagram of a power control apparatus according to Embodiment 6 of the present invention.
- the apparatus includes an acquisition module 21 and a processing module 22.
- the acquiring module 21 is configured to obtain transmission power of the symbol overlapping portion of the first subframe and the second subframe; the first subframe is a subframe that transmits the sounding reference signal SRS on the first carrier, and the second subframe is in the second frame.
- the SRS or the subframe of the physical channel is transmitted on the carrier;
- the processing module 22 is configured to control, if the transmission power is greater than the maximum transmission power of the user equipment UE, the transmission power of the transmission signal, where the transmission signal includes an SRS and/or a physical channel.
- the processing module 22 is further configured to determine whether the SRS is a periodic configuration or a non-periodic configuration.
- the processing module 22 controls the transmit power of the transmission signal, and the processing module 22 controls the transmit power of the transmit signal according to the periodic configuration of the SRS. Alternatively, the processing module 22 performs the aperiodic configuration according to the SRS. The transmit power of the transmitted signal is controlled.
- the processing module 22 controls the transmit power of the transmission signal, including: the processing module 22 discards the SRS or performs power scaling on the SRS.
- the processing module 22 controls the transmit power of the transmission signal, including: the processing module 22 discards the PUSCH Or power scaling the PUSCH.
- the processing module 22 controls the transmit power of the transmission signal, including: the processing module 22 discards the SRS or Power scaling the SRS.
- the physical channel is a physical uplink control channel (PUCCH)
- the processing module 22 controls the transmit power of the transmission signal, including: the processing module 22 discards the SRS or performs power scaling on the SRS; Alternatively, processing module 22 discards the PUCCH or power scales the PUCCH.
- PUCCH physical uplink control channel
- the physical channel is a physical uplink control channel.
- PUCCH Physical Uplink control channel
- the PUCCH includes hybrid automatic repeat request HARQ; then the processing module 22 controls the transmit power of the transmission signal, including: the processing module 22 discards the SRS or performs power scaling on the SRS.
- the processing module 22 controls the transmit power of the transmission signal, including: the processing module 22 The SRS is discarded or power scaled for the SRS; or, the processing module 22 discards the PUCCH or power scales the PUCCH.
- the physical channel is a physical uplink control channel (PUCCH)
- the PUCCH includes only the channel state information CSI
- the processing module 22 controls the transmit power of the transmission signal, including: the processing module 22 discards the SRS or performs the SRS Power scaling.
- the device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 4, and the implementation principle and technical effects are similar, and details are not described herein again.
- FIG. 8 is a structural diagram of a power control apparatus according to Embodiment 7 of the present invention.
- the apparatus includes an acquisition module 31 and a transmission module 32.
- the obtaining module 31 is configured to acquire a power control parameter of the sounding reference signal SRS on the first carrier, where the power control parameter of the SRS includes at least one of a target power parameter value of the SRS, a path loss compensation factor, and a closed loop power control parameter value of the SRS;
- the module 32 is configured to send the power control parameter of the SRS to the user equipment UE, so that the UE determines the transmit power of the SRS on the first carrier according to the power control parameter of the SRS.
- the first carrier is a carrier that does not send the physical uplink shared channel PUSCH.
- the sending module is specifically configured to send, by using power control signaling or cross-carrier power control signaling, a power control parameter of the SRS to the UE.
- the power control signaling includes open loop power control signaling and/or closed loop power control signaling.
- the power control signaling or the cross-carrier power control signaling includes radio resource control RRC signaling or physical layer signaling.
- the target power parameter value of the SRS is a parameter value obtained based on the initial received target power value of the preamble; or the target power parameter value of the SRS is a parameter value obtained based on the initial received target power value and the power adjustment value of the preamble.
- the sending module sends the power control parameter of the SRS to the UE by using the power control signaling or the cross-carrier power control signaling, where the sending module performs the scrambling on the power control parameter of the SRS according to the first wireless network temporary identifier RNTI.
- the SRS is a periodic configuration or a non-periodic configuration.
- the closed loop power control parameter value of the SRS is an absolute value or a relative adjusted value.
- the sending module is further configured to send the transmit power control TPC information to the UE, so that the UE parses the closed loop power control parameter value of the SRS from the TPC information;
- the TPC information is information that is scrambled by the first wireless network temporary identifier RNTI .
- the sending module is further configured to send the downlink control information DCI to the UE, so that the UE acquires the closed loop power control parameter value of the SRS according to the DCI.
- the DCI is the control information acquired on the second carrier
- the DCI includes at least a first carrier identifier, where the DCI is used to indicate that the UE acquires a closed loop power control parameter value of the SRS on the carrier corresponding to the first carrier identifier.
- the second carrier is a carrier before handover or any carrier other than the switched carrier
- the first carrier is a switched carrier
- the DCI is used to indicate that the UE obtains the closed loop power control parameter value of the SRS from the DCI.
- the device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 5, and the implementation principle and technical effects are similar, and details are not described herein again.
- FIG. 9 is a structural diagram of a UE according to Embodiment 8 of the present invention.
- the UE may include a processor 401 and a memory 402.
- the apparatus can also include a transmit interface 403 and a receive interface 404. Transmit interface 403 and receive interface 404 can be coupled to processor 401.
- the sending interface 403 is configured to send data or information
- the sending interface 403 can be a wireless transmitting device
- the receiving interface 404 can be used to receive data or information
- the receiving interface 404 can be a wireless receiving device
- the memory 402 stores execution instructions when the device is running.
- the processor 401 communicates with the memory 402, and the processor 401 calls an execution instruction in the memory 402 for performing the following operations:
- the transmit power of the SRS on the first carrier is determined according to the power control parameter of the SRS.
- the first carrier is a carrier that does not send the physical uplink shared channel PUSCH.
- the processor 401 acquires power control parameters of the sounding reference signal SRS, including: the processor 401 receives power control signaling or cross-carrier power control signaling sent by the base station.
- the power control signaling includes open loop power control signaling and/or closed loop power control signaling.
- the processor 401 acquires the power control parameter of the sounding reference signal SRS, where the processor 401 obtains the power control parameter of the SRS from the power control signaling or the cross-carrier power control signaling.
- the power control signaling or the cross-carrier power control signaling includes radio resource control RRC signaling or physical layer signaling.
- the target power parameter value of the SRS is a parameter value obtained based on the initial received target power value of the preamble; or the target power parameter value of the SRS is a parameter value obtained based on the initial received target power value and the power adjustment value of the preamble.
- the processor 401 obtains power control parameters from the power control signaling or the cross-carrier power control signaling, including: the processor 401, according to the first wireless network temporary identifier, the RNTI, the power control signaling, or the cross-carrier power control signal.
- the power control parameters of the SRS are parsed out in the order.
- the processor 401 determines, according to the power control parameter of the SRS, the transmit power of the SRS, where the processor 401: according to the maximum transmit power of the user equipment UE, the transmit power adjustment value of the SRS, the transmission bandwidth of the SRS, and the target power parameter of the SRS. At least one of a value, a path loss compensation factor, and a downlink path loss estimate obtains a transmit power of the SRS.
- the processor 401 is further configured to determine whether the SRS is a periodic configuration or a non-periodic configuration.
- the closed loop power control parameter value of the SRS is an absolute value or a relative adjusted value.
- the processor 401 is further configured to obtain transmission power control TPC information; the TPC information is The information that the RNTI scrambles is temporarily identified by the first wireless network.
- the processor 401 is further configured to parse the closed loop power control parameter value of the SRS from the TPC information according to the first RNTI.
- the processor 401 is further configured to obtain the downlink control information DCI.
- the processor 401 acquires power control parameters of the SRS, including: the processor 401 acquires a closed loop power control parameter value of the SRS according to the DCI.
- the DCI includes at least the first carrier identifier.
- the second carrier is a carrier before handover or any carrier other than the switched carrier
- the first carrier is a switched carrier
- the processor 401 acquires the closed-loop power control parameter value of the SRS according to the DCI, where the processor 401 acquires a closed-loop power control parameter value of the SRS on the carrier corresponding to the first carrier identifier.
- the processor 401 acquires the closed-loop power control parameter value of the SRS according to the DCI, where the processor 401 obtains the closed-loop power control parameter value of the SRS from the DCI.
- the processor 401 is further configured to determine, according to at least one of the closed loop power control information and the relative adjustment value of the SRS of the previous subframe, the closed loop power control of the SRS. Parameter value.
- the closed-loop power control information of the SRS of the subframe, ⁇ SRS, c1 (iK SRS ) is a relative adjustment value. If the SRS is a periodic configuration, the K SRS is a subframe period of the SRS, and if the SRS is a non-periodic configuration, the iK The SRS is the subframe number of the previous subframe.
- the processor 401 determines, according to the power control parameter of the SRS, the transmit power of the SRS, where the processor 401: according to the maximum transmit power of the user equipment UE, the transmit power adjustment value of the SRS, the transmission bandwidth of the SRS, and the target power parameter of the SRS.
- the transmit power of the SRS is obtained by at least one of a value, a path loss compensation factor, a downlink path loss estimate, and a closed loop power control parameter of the SRS.
- the UE in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 2 or 3.
- the implementation principle and technical effects are similar, and details are not described herein again.
- the embodiment of the present application further provides a UE.
- the structure of the UE is the same as that of the UE shown in FIG. 9.
- the processor communicates with the memory, and the processor calls an execution instruction in the memory to execute the following. operating:
- the first subframe is a subframe for transmitting the sounding reference signal SRS on the first carrier
- the second subframe is for transmitting the SRS on the second carrier or a subframe of a physical channel
- the transmission power of the transmission signal is controlled, and the transmission signal includes an SRS and/or a physical channel.
- the processor is further configured to determine whether the SRS is a periodic configuration or a non-periodic configuration.
- the processor controls the transmit power of the transmission signal, including: the processor controls the transmit power of the transmit signal according to the periodic configuration of the SRS; or the processor transmits the signal according to the non-periodic configuration of the SRS.
- the transmit power is controlled.
- the processor controls the transmit power of the transmission signal, including: the processor discards the SRS or performs power scaling on the SRS.
- the processor controls the transmit power of the transmission signal, including: the processor discards the PUSCH or the pair The PUSCH performs power scaling.
- the physical channel is a physical uplink shared channel PUSCH, and the PUSCH includes uplink control information UCI; the processor controls the transmit power of the transmission signal, including: the processor discards the SRS or the SRS Perform power scaling.
- the physical channel is a physical uplink control channel.
- the processor controls the transmit power of the transmission signal, including: the processor discards the SRS or performs power scaling on the SRS; or the processor discards the PUCCH or performs power scaling on the PUCCH.
- the processor controls the transmit power of the transmission signal, including: the processor discards SRS or power scaling of SRS.
- HARQ hybrid automatic repeat request
- the physical channel is a physical uplink control channel PUCCH, and the PUCCH includes only the channel state information CSI; the processor controls the transmit power of the transmission signal, including: the processor discards the SRS Or power scaling the SRS; or the processor discards the PUCCH or performs power scaling on the PUCCH.
- the processor controls the transmit power of the transmission signal, including: the processor discards the SRS or performs power scaling on the SRS. .
- the UE in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 4, and the implementation principle and technical effects are similar, and details are not described herein again.
- FIG. 10 is a structural diagram of a base station according to Embodiment 9 of the present invention.
- the base station includes a processor 501 and a transmitter 502.
- the processor 501 is configured to acquire a power control parameter of the sounding reference signal SRS on the first carrier, where the power control parameter of the SRS includes at least one of a target power parameter value of the SRS, a path loss compensation factor, and a closed loop power control parameter value of the SRS;
- the 502 is configured to send the power control parameter of the SRS to the user equipment UE, so that the UE determines the transmit power of the SRS on the first carrier according to the power control parameter of the SRS.
- the first carrier is a carrier that does not send the physical uplink shared channel PUSCH.
- the transmitter 502 sends the power control parameter of the SRS to the user equipment UE, where the transmitter 502 sends the power control parameter of the SRS to the UE by using power control signaling or cross-carrier power control signaling.
- the power control signaling includes open loop power control signaling and/or closed loop power control signaling.
- the power control signaling or the cross-carrier power control signaling includes radio resource control RRC signaling or physical layer signaling.
- the target power parameter value of the SRS is a parameter value obtained based on the initial received target power value of the preamble; or the target power parameter value of the SRS is based on the initial received target power value of the preamble. And the parameter value obtained from the power adjustment value.
- the transmitter 502 sends the power control parameter of the SRS to the UE by using power control signaling or cross-carrier power control signaling, including: the transmitter 502 scrambles the power control parameter of the SRS according to the RNTI to generate power control. Signaling or cross-carrier power control signaling; transmitting power control signaling or cross-carrier power control signaling to the UE.
- the SRS is a periodic configuration or a non-periodic configuration.
- the closed loop power control parameter value of the SRS is an absolute value or a relative adjusted value.
- the transmitter 502 is further configured to send the transmit power control TPC information to the UE, so that the UE parses the closed loop power control parameter value of the SRS from the TPC information; the TPC information is scrambled by the first wireless network temporary identifier RNTI information.
- the transmitter 502 is further configured to send the downlink control information DCI to the UE, so that the UE acquires the closed loop power control parameter value of the SRS according to the DCI.
- the DCI is the control information acquired on the second carrier
- the DCI includes at least a first carrier identifier, where the DCI is used to indicate that the UE acquires a closed loop power control parameter value of the SRS on the carrier corresponding to the first carrier identifier.
- the second carrier is a carrier before handover or any carrier other than the switched carrier
- the first carrier is a switched carrier
- the DCI is used to indicate that the UE obtains the closed loop power control parameter value of the SRS from the DCI.
- the base station may further include a memory 503 and a receiver 504.
- Memory 503 is used to store instructions and data
- receiver 504 is used to receive data or information.
- the device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 5, and the implementation principle and the technical effect are similar, and details are not described herein again.
- the aforementioned program can be stored in a computer readable storage medium.
- the steps of the foregoing method embodiments are performed; and the foregoing storage medium includes: Read-Only Memory (ROM), Random Access Memory (RAM), and Magnetic Various discs or CDs, etc.
- ROM Read-Only Memory
- RAM Random Access Memory
- CDs Compact Various discs or CDs
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Abstract
Description
Claims (96)
- 一种功率控制方法,其特征在于,包括:获取探测参考信号SRS的功率控制参数,所述SRS的功率控制参数包括所述SRS的目标功率参数值、路径损耗补偿因子、所述SRS的闭环功率控制参数值中的至少一个;根据所述SRS的功率控制参数确定所述SRS在第一载波上的发射功率。
- 根据权利要求1所述的方法,其特征在于,所述第一载波为不发送物理上行共享信道PUSCH的载波。
- 根据权利要求1或2所述的方法,其特征在于,所述获取探测参考信号SRS的功率控制参数,包括:接收基站发送的功率控制信令或跨载波功率控制信令。
- 根据权利要求3所述的方法,其特征在于,所述功率控制信令包括开环功率控制信令和/或闭环功率控制信令。
- 根据权利要求3或4所述的方法,其特征在于,所述获取探测参考信号SRS的功率控制参数,包括:从所述功率控制信令或所述跨载波功率控制信令中获取所述SRS的功率控制参数。
- 根据权利要求3-5任一项所述的方法,其特征在于,所述功率控制信令或所述跨载波功率控制信令包括无线资源控制RRC信令或物理层信令。
- 根据权利要求1-6任一项所述方法,其特征在于,所述SRS的目标功率参数值为基于前导码初始接收目标功率值获得的参数值;或者,所述SRS的目标功率参数值为基于所述前导码初始接收目标功率值和功率调整值获得的参数值。
- 根据权利要求5-7任一项所述的方法,其特征在于,所述从所述功率控制信令或所述跨载波功率控制信令中获取所述功率控制参数,包括:根据第一无线网络临时标识RNTI,从所述功率控制信令或所述跨载波功率控制信令中解析出所述SRS的功率控制参数。
- 根据权利要求1-8任一项所述的方法,其特征在于,所述根据所述SRS的功率控制参数确定所述SRS的发射功率,包括:根据用户设备UE的最大发射功率、所述SRS的发射功率调整值、所述SRS的传输带宽、所述SRS的目标功率参数值、所述路径损耗补偿因子、下行路径损耗估计值中的至少一项获得所述SRS的发射功率。
- 根据权利要求9所述的方法,其特征在于,所述根据所述SRS的功率控制参数确定所述SRS的发射功率,包括:根据公式PSRS,c1(i)=min{PCMAX,c1(i),PSRS_OFFSET,c1(m)+10log10(MSRS,c1)+PO_SRS,c1(j)+αSRS,c1(j)·PLSRS,c1}计算所述SRS的发射功率PSRS,c1(i);其中,PCMAX,c1(i)为用户设备UE在第i个子帧上的最大发射功率,PSRS_OFFSET,c1(m)为所述SRS的发射功率调整值,m=0或1,MSRS,c1为所述SRS的传输带宽,PO_SRS,c1(j)为所述SRS的目标功率参数值,j=0或1或2,αSRS,c1(j)为所述路径损耗补偿因子,PLSRS,c1为下行路径损耗估计值。
- 根据权利要求1所述的方法,其特征在于,所述根据所述SRS的功率控制参数确定所述SRS的发射功率之前,所述方法还包括:确定所述SRS是周期性配置或非周期性配置。
- 根据权利要求1或11所述的方法,其特征在于,若所述SRS的功率控制参数包括所述SRS的闭环功率控制参数值,所述SRS的闭环功率控制参数值为绝对值或相对调整值。
- 根据权利要求1-12任一项所述的方法,其特征在于,所述获取SRS的功率控制参数之前,所述方法还包括:获取传输功率控制TPC信息;所述TPC信息为经过第一无线网络临时标识RNTI加扰的信息。
- 根据权利要求13所述的方法,其特征在于,所述获取SRS的功率控制参数,包括:根据所述第一RNTI,从所述TPC信息中解析出所述SRS的闭环功率控制参数值。
- 根据权利要求1、11-14任一项所述的方法,其特征在于,若所述SRS的功率控制参数包括所述SRS的闭环功率控制参数值;则所述获取SRS的功率控制参数之前,所述方法还包括:获取下行控制信息DCI。
- 根据权利要求15所述的方法,其特征在于,所述获取SRS的功率控制参数,包括:根据所述DCI获取所述SRS的闭环功率控制参数值。
- 根据权利要求16所述的方法,其特征在于,若所述DCI为第二载波上获取到的控制信息,则所述DCI至少包括第一载波标识。
- 根据权利要求17所述的方法,其特征在于,所述第二载波为切换前的载波或除切换后的载波之外的任一载波,第一载波为切换后的载波。
- 根据权利要求17或18所述的方法,其特征在于,所述根据所述DCI获取所述SRS的闭环功率控制参数值,包括:获取所述第一载波标识对应的载波上的所述SRS的闭环功率控制参数值。
- 根据权利要求16所述的方法,其特征在于,若所述DCI为第一载波上获取到的控制信息;则所述根据所述DCI获取所述SRS的闭环功率控制参数值,包括:从所述DCI中获取所述SRS的闭环功率控制参数值。
- 根据权利要求12-20任一项所述的方法,其特征在于,若所述SRS的闭环功率控制参数值为相对调整值,则所述方法还包括:根据上一子帧的SRS的闭环功率控制信息和相对调整值中的至少一项确定所述SRS的闭环功率控制参数值。
- 根据权利要求21所述的方法,其特征在于,所述根据上一子帧的SRS的闭环功率控制信息和相对调整值中的至少一项确定所述SRS的闭环功率控制参数值,包括:根据公式fSRS,c1(i)=fSRS,c1(i-1)+δSRS,c1(i-KSRS)计算所述SRS的闭环功率控制参数值fSRS,c1(i),其中,fSRS,c1(i-1)为上一子帧的SRS的闭环功率控制信息,δSRS,c1(i-KSRS)为所述相对调整值,若所述SRS为周期性配置,则KSRS为所述SRS的子帧周期,若所述SRS为非周期性配置,则i-KSRS为上一子帧的子帧号。
- 根据权利要求11-22任一项所述的方法,其特征在于,所述根据所述SRS的功率控制参数确定所述SRS的发射功率,包括:根据用户设备UE的最大发射功率、所述SRS的发射功率调整值、所述SRS的传输带宽、所述SRS的目标功率参数值、所述路径损耗补偿因子、下行路径损耗估计值、所述SRS的闭环功率控制参数中的至少一项获得所述SRS的发射功率。
- 根据权利要求23所述的方法,其特征在于,所述根据所述SRS的功率控制参数确定所述SRS的发射功率,包括:根据公式PSRS,c1(i)=min{PCMAX,c1(i),PSRS_OFFSET,c1(m)+10log10(MSRS,c1)+PO_SRS,c1(j)+αSRS,c1(j)·PLSRS,c1+fSRS,c1(i)}计算所述SRS的发射功率PSRS,c1(i);其中,PCMAX,c1(i)为用户设备UE在第i个子帧上的最大发射功率,PSRS_OFFSET,c1(m)为所述SRS的发射功率调整值,m=0或1,MSRS,c1为所述SRS的传输带宽,PO_SRS,c1(j)为所述SRS的目标功率参数值,αSRS,c1(j)为所述路劲损耗补偿因子,PLSRS,c1为下行路劲损耗估计值,fSRS,c1(i)为所述SRS的闭环功率控制参数值。
- 一种功率控制方法,其特征在于,包括:获取第一子帧和第二子帧的符号重叠部分的传输功率;所述第一子帧为在第一载波上传输探测参考信号SRS的子帧,所述第二子帧为在第二载波上传输SRS或物理信道的子帧;若所述传输功率大于用户设备UE的最大传输功率,则对传输信号的发射功率进行控制,所述传输信号包括所述SRS和/或所述物理信道。
- 根据权利要求25所述的方法,其特征在于,所述对传输信号的发射功率进行控制之前,所述方法还包括:确定所述SRS是周期性配置或非周期性配置。
- 根据权利要求25或26所述的方法,其特征在于,所述对传输信号的发射功率进行控制,包括:根据所述SRS的周期性配置,对传输信号的发射功率进行控制;或者,根据所述SRS的非周期性配置,对传输信号的发射功率进行控制。
- 根据权利要求25-27任一项所述的方法,其特征在于,若所述SRS为周期性配置,则所述对传输信号的发射功率进行控制,包括:丢弃所述SRS或者对所述SRS进行功率缩放。
- 根据权利要求25-27任一项所述的方法,其特征在于,若所述SRS为非周期性配置,所述物理信道为物理上行共享信道PUSCH,且所述PUSCH不包括上行控制信息UCI;则所述对传输信号的发射功率进行控制,包括:丢弃所述PUSCH或者对所述PUSCH进行功率缩放。
- 根据权利要求25-27任一项所述的方法,其特征在于,若所述SRS为非周期性配置,所述物理信道为物理上行共享信道PUSCH,且所述PUSCH包括上行控制信息UCI;则所述对传输信号的发射功率进行控制,包括:丢弃所述SRS或者对所述SRS进行功率缩放。
- 根据权利要求25-27任一项所述的方法,其特征在于,若所述SRS为非周期性配置,所述物理信道为物理上行链路控制信道PUCCH;则所述对传输信号的发射功率进行控制,包括:丢弃所述SRS或者对所述SRS进行功率缩放;或者,丢弃所述PUCCH或者对所述PUCCH进行功率缩放。
- 根据权利要求25-27任一项所述的方法,其特征在于,若所述SRS为非周期性配置,所述物理信道为物理上行链路控制信道PUCCH,且所述PUCCH包括混合自动重传请求HARQ;则所述对传输信号的发射功率进行控制,包括:丢弃所述SRS或者对所述SRS进行功率缩放。
- 根据权利要求25-27任一项所述的方法,其特征在于,若所述SRS为非周期性配置,所述物理信道为物理上行链路控制信道PUCCH,且所述PUCCH只包括信道状态信息CSI;则所述对传输信号的发射功率进行控制,包括:丢弃所述SRS或者对所述SRS进行功率缩放;或者,丢弃所述PUCCH或者对所述PUCCH进行功率缩放。
- 根据权利要求25-27任一项所述的方法,其特征在于,若所述SRS为非周期性配置,所述物理信道为物理随机接入信道PRACH,且所述PRACH 并行;则所述对传输信号的发射功率进行控制,包括:丢弃所述SRS或者对所述SRS进行功率缩放。
- 一种功率控制方法,其特征在于,所述方法包括:获取第一载波上探测参考信号SRS的功率控制参数,所述SRS的功率控制参数包括所述SRS的目标功率参数值、路径损耗补偿因子、所述SRS的闭环功率控制参数值中的至少一个;将所述SRS的功率控制参数发送给用户设备UE,以使所述UE根据所述SRS的功率控制参数确定所述SRS在第一载波上的发射功率。
- 根据权利要求35所述的方法,其特征在于,所述第一载波为不发送物理上行共享信道PUSCH的载波。
- 根据权利要求35或36所述的方法,其特征在于,将所述SRS的功率控制参数发送给用户设备UE,包括:通过功率控制信令或跨载波功率控制信令将所述SRS的功率控制参数发送给所述UE。
- 根据权利要求37所述的方法,其特征在于,所述功率控制信令包括开环功率控制信令和/或闭环功率控制信令。
- 根据权利要求37或38所述的方法,其特征在于,所述功率控制信令或所述跨载波功率控制信令包括无线资源控制RRC信令或物理层信令。
- 根据权利要求35-39任一项所述的方法,其特征在于,所述SRS的目标功率参数值为基于前导码初始接收目标功率值获得的参数值;或者,所述SRS的目标功率参数值为基于所述前导码初始接收目标功率值和功率调整值获得的参数值。
- 根据权利要求39或40所述的方法,其特征在于,所述通过功率控制信令或跨载波功率控制信令将所述SRS的功率控制参数发送给所述UE,包括:根据第一无线网络临时标识RNTI对所述SRS的功率控制参数进行加扰,以生成所述功率控制信令或所述跨载波功率控制信令;将所述功率控制信令或所述跨载波功率控制信令发送给所述UE。
- 根据权利要求35所述的方法,其特征在于,所述SRS是周期性配置或非周期性配置。
- 根据权利要求35或42所述的方法,其特征在于,若所述SRS的功率控制参数包括所述SRS的闭环功率控制参数值,所述SRS的闭环功率控制参数值为绝对值或相对调整值。
- 根据权利要求35-43任一项所述的方法,其特征在于,所述方法还包括:向所述UE发送传输功率控制TPC信息,以使所述UE从所述TPC信息中解析出所述SRS的闭环功率控制参数值;所述TPC信息为经过第一无线网络临时标识RNTI加扰的信息。
- 根据权利要求35、42-44任一项所述的方法,其特征在于,若所述SRS的功率控制参数包括所述SRS的闭环功率控制参数值;所述方法还包括:向所述UE发送下行控制信息DCI,以使所述UE根据所述DCI获取所述SRS的闭环功率控制参数值。
- 根据权利要求45所述的方法,其特征在于,若所述DCI为第二载波上获取到的控制信息,则所述DCI至少包括第一载波标识,所述DCI用于指示所述UE获取所述第一载波标识对应的载波上的所述SRS的闭环功率控制参数值。
- 根据权利要求46所述的方法,其特征在于,所述第二载波为切换前的载波或除切换后的载波之外的任一载波,第一载波为切换后的载波。
- 根据权利要求45所述的方法,其特征在于,若所述DCI为第一载波上获取到的控制信息;则所述DCI用于指示所述UE从所述DCI中获取所述SRS的闭环功率控制参数值。
- 一种功率控制装置,其特征在于,包括:获取模块,用于获取探测参考信号SRS的功率控制参数,所述SRS的功率控制参数包括所述SRS的目标功率参数值、路径损耗补偿因子、所述SRS的闭环功率控制参数值中的至少一个;确定模块,用于根据所述SRS的功率控制参数确定所述SRS在第一载波上的发射功率。
- 根据权利要求49所述的装置,其特征在于,所述第一载波为不发送 物理上行共享信道PUSCH的载波。
- 根据权利要求49或50所述的装置,其特征在于,所述获取模块具体用于接收基站发送的功率控制信令或跨载波功率控制信令。
- 根据权利要求50所述的装置,其特征在于,所述功率控制信令包括开环功率控制信令和/或闭环功率控制信令。
- 根据权利要求51或52所述的装置,其特征在于,所述获取模块具体还用于从所述功率控制信令或所述跨载波功率控制信令中获取所述SRS的功率控制参数。
- 根据权利要求51-53任一项所述的装置,其特征在于,所述功率控制信令或所述跨载波功率控制信令包括无线资源控制RRC信令或物理层信令。
- 根据权利要求49-54任一项所述的装置,其特征在于,所述SRS的目标功率参数值为基于前导码初始接收目标功率值获得的参数值;或者,所述SRS的目标功率参数值为基于所述前导码初始接收目标功率值和功率调整值获得的参数值。
- 根据权利要求53-55任一项所述的装置,其特征在于,所述获取模块从所述功率控制信令或所述跨载波功率控制信令中获取所述功率控制参数,包括:所述获取模块根据第一无线网络临时标识RNTI,从所述功率控制信令或所述跨载波功率控制信令中解析出所述SRS的功率控制参数。
- 根据权利要求49-56任一项所述的装置,其特征在于,所述确定模块具体用于根据用户设备UE的最大发射功率、所述SRS的发射功率调整值、所述SRS的传输带宽、所述SRS的目标功率参数值、所述路径损耗补偿因子、下行路径损耗估计值中的至少一项获得所述SRS的发射功率。
- 根据权利要求57所述的装置,其特征在于,所述确定模块具体用于根据公式PSRS,c1(i)=min{PCMAX,c1(i),PSRS_OFFSET,c1(m)+10log10(MSRS,c1)+PO_SRS,c1(j)+αSRS,c1(j)·PLSRS,c1}计算所述SRS的发射功率PSRS,c1(i);其中,PCMAX,c1(i)为用户设备UE在第i个子帧上的最大发射功率,PSRS_OFFSET,c1(m)为所述SRS的发射功率调整值,m=0 或1,MSRS,c1为所述SRS的传输带宽,PO_SRS,c1(j)为所述SRS的目标功率参数值,j=0或1或2,αSRS,c1(j)为所述路径损耗补偿因子,PLSRS,c1为下行路径损耗估计值。
- 根据权利要求49所述的装置,其特征在于,所述确定模块还用于确定所述SRS是周期性配置或非周期性配置。
- 根据权利要求49或59所述的装置,其特征在于,若所述SRS的功率控制参数包括所述SRS的闭环功率控制参数值,所述SRS的闭环功率控制参数值为绝对值或相对调整值。
- 根据权利要求49-60任一项所述的装置,其特征在于,所述获取模块还用于获取传输功率控制TPC信息;所述TPC信息为经过第一无线网络临时标识RNTI加扰的信息。
- 根据权利要求61所述的装置,其特征在于,所述获取模块获取SRS的功率控制参数,包括:所述获取模块根据所述第一RNTI,从所述TPC信息中解析出所述SRS的闭环功率控制参数值。
- 根据权利要求49、59-62任一项所述的装置,其特征在于,若所述SRS的功率控制参数包括所述SRS的闭环功率控制参数值;所述获取模块还用于获取下行控制信息DCI。
- 根据权利要求63所述的装置,其特征在于,所述获取模块获取SRS的功率控制参数,包括:所述获取模块根据所述DCI获取所述SRS的闭环功率控制参数值。
- 根据权利要求64所述的装置,其特征在于,若所述DCI为第二载波上获取到的控制信息,则所述DCI至少包括第一载波标识。
- 根据权利要求65所述的装置,其特征在于,所述第二载波为切换前的载波或除切换后的载波之外的任一载波,第一载波为切换后的载波。
- 根据权利要求65或66所述的装置,其特征在于,所述获取模块根据所述DCI获取所述SRS的闭环功率控制参数值,包括:所述获取模块获取所述第一载波标识对应的载波上的所述SRS的闭环功率控制参数值。
- 根据权利要求64所述的装置,其特征在于,若所述DCI为第一载 波上获取到的控制信息;则所述获取模块根据所述DCI获取所述SRS的闭环功率控制参数值,包括:所述获取模块从所述DCI中获取所述SRS的闭环功率控制参数值。
- 根据权利要求60-68任一项所述的装置,其特征在于,若所述SRS的闭环功率控制参数值为相对调整值,则所述确定模块还用于根据上一子帧的SRS的闭环功率控制信息和相对调整值中的至少一项确定所述SRS的闭环功率控制参数值。
- 根据权利要求69所述的装置,其特征在于,所述确定模块根据上一子帧的SRS的闭环功率控制信息和相对调整值中的至少一项确定所述SRS的闭环功率控制参数值,包括:所述确定模块根据公式fSRS,c1(i)=fSRS,c1(i-1)+δSRS,c1(i-KSRS)计算所述SRS的闭环功率控制参数值fSRS,c1(i),其中,fSRS,c1(i-1)为上一子帧的SRS的闭环功率控制信息,δSRS,c1(i-KSRS)为所述相对调整值,若所述SRS为周期性配置,则KSRS为所述SRS的子帧周期,若所述SRS为非周期性配置,则i-KSRS为上一子帧的子帧号。
- 根据权利要求59-70任一项所述的装置,其特征在于,所述确定模块根据所述SRS的功率控制参数确定所述SRS的发射功率,包括:所述确定模块根据用户设备UE的最大发射功率、所述SRS的发射功率调整值、所述SRS的传输带宽、所述SRS的目标功率参数值、所述路径损耗补偿因子、下行路径损耗估计值、所述SRS的闭环功率控制参数中的至少一项获得所述SRS的发射功率。
- 根据权利要求71所述的装置,其特征在于,所述确定模块根据所述SRS的功率控制参数确定所述SRS的发射功率,包括:所述确定模块根据公式PSRS,c1(i)=min{PCMAX,c1(i),PSRS_OFFSET,c1(m)+10log10(MSRS,c1)+PO_SRS,c1(j)+αSRS,c1(j)·PLSRS,c1+fSRS,c1(i)}计算所述SRS的发射功率PSRS,c1(i);其中,PCMAX,c1(i)为用户设备UE在第i个子帧上的最大发射功率,PSRS_OFFSET,c1(m)为所述SRS的发射功率调整值,m=0或1,MSRS,c1为所述SRS的传输带宽,PO_SRS,c1(j)为所述SRS的目标功率参数值,αSRS,c1(j)为所述路劲损耗补偿因子,PLSRS,c1为下行路劲损耗估计值,fSRS,c1(i) 为所述SRS的闭环功率控制参数值。
- 一种功率控制装置,其特征在于,包括:获取模块,用于获取第一子帧和第二子帧的符号重叠部分的传输功率;所述第一子帧为在第一载波上传输探测参考信号SRS的子帧,所述第二子帧为在第二载波上传输SRS或物理信道的子帧;处理模块,用于若所述传输功率大于用户设备UE的最大传输功率,则对传输信号的发射功率进行控制,所述传输信号包括所述SRS和/或所述物理信道。
- 根据权利要求73所述的装置,其特征在于,所述处理模块还用于确定所述SRS是周期性配置或非周期性配置。
- 根据权利要求73或74所述的装置,其特征在于,所述处理模块对传输信号的发射功率进行控制,包括:所述处理模块根据所述SRS的周期性配置,对传输信号的发射功率进行控制;或者,所述处理模块根据所述SRS的非周期性配置,对传输信号的发射功率进行控制。
- 根据权利要求73-75任一项所述的装置,其特征在于,若所述SRS为周期性配置,则所述处理模块对传输信号的发射功率进行控制,包括:所述处理模块丢弃所述SRS或者对所述SRS进行功率缩放。
- 根据权利要求73-75任一项所述的装置,其特征在于,若所述SRS为非周期性配置,所述物理信道为物理上行共享信道PUSCH,且所述PUSCH不包括上行控制信息UCI;则所述处理模块对传输信号的发射功率进行控制,包括:所述处理模块丢弃所述PUSCH或者对所述PUSCH进行功率缩放。
- 根据权利要求73-75任一项所述的装置,其特征在于,若所述SRS为非周期性配置,所述物理信道为物理上行共享信道PUSCH,且所述PUSCH包括上行控制信息UCI;则所述处理模块对传输信号的发射功率进行控制,包括:所述处理模块丢弃所述SRS或者对所述SRS进行功率缩放。
- 根据权利要求73-75任一项所述的装置,其特征在于,若所述SRS为非周期性配置,所述物理信道为物理上行链路控制信道PUCCH;则所述处理模块对传输信号的发射功率进行控制,包括:所述处理模块丢弃所述SRS或者对所述SRS进行功率缩放;或者,所述处理模块丢弃所述PUCCH或者对所述PUCCH进行功率缩放。
- 根据权利要求73-75任一项所述的装置,其特征在于,若所述SRS为非周期性配置,所述物理信道为物理上行链路控制信道PUCCH,且所述PUCCH包括混合自动重传请求HARQ;则所述处理模块对传输信号的发射功率进行控制,包括:所述处理模块丢弃所述SRS或者对所述SRS进行功率缩放。
- 根据权利要求73-75任一项所述的装置,其特征在于,若所述SRS为非周期性配置,所述物理信道为物理上行链路控制信道PUCCH,且所述PUCCH只包括信道状态信息CSI;则所述处理模块对传输信号的发射功率进行控制,包括:所述处理模块丢弃所述SRS或者对所述SRS进行功率缩放;或者,所述处理模块丢弃所述PUCCH或者对所述PUCCH进行功率缩放。
- 根据权利要求73-75任一项所述的装置,其特征在于,若所述SRS为非周期性配置,所述物理信道为物理随机接入信道PRACH,且所述PRACH并行;则所述处理模块对传输信号的发射功率进行控制,包括:所述处理模块丢弃所述SRS或者对所述SRS进行功率缩放。
- 一种功率控制装置,其特征在于,包括:获取模块,用于获取第一载波上探测参考信号SRS的功率控制参数,所述SRS的功率控制参数包括所述SRS的目标功率参数值、路径损耗补偿因子、所述SRS的闭环功率控制参数值中的至少一个;发送模块,用于将所述SRS的功率控制参数发送给用户设备UE,以使所述UE根据所述SRS的功率控制参数确定所述SRS在第一载波上的发射功率。
- 根据权利要求83所述的装置,其特征在于,所述第一载波为不发送物理上行共享信道PUSCH的载波。
- 根据权利要求83或84所述的装置,其特征在于,所述发送模块具体用于通过功率控制信令或跨载波功率控制信令将所述SRS的功率控制参数发送给所述UE。
- 根据权利要求85所述的装置,其特征在于,所述功率控制信令包括开环功率控制信令和/或闭环功率控制信令。
- 根据权利要求85或86所述的装置,其特征在于,所述功率控制信令或所述跨载波功率控制信令包括无线资源控制RRC信令或物理层信令。
- 根据权利要求83-87任一项所述的装置,其特征在于,所述SRS的目标功率参数值为基于前导码初始接收目标功率值获得的参数值;或者,所述SRS的目标功率参数值为基于所述前导码初始接收目标功率值和功率调整值获得的参数值。
- 根据权利要求87或88所述的装置,其特征在于,所述发送模块通过功率控制信令或跨载波功率控制信令将所述SRS的功率控制参数发送给所述UE,包括:所述发送模块根据第一无线网络临时标识RNTI对所述SRS的功率控制参数进行加扰,以生成所述功率控制信令或所述跨载波功率控制信令;并将所述功率控制信令或所述跨载波功率控制信令发送给所述UE。
- 根据权利要求83所述的装置,其特征在于,所述SRS是周期性配置或非周期性配置。
- 根据权利要求83或90所述的装置,其特征在于,若所述SRS的功率控制参数包括所述SRS的闭环功率控制参数值,所述SRS的闭环功率控制参数值为绝对值或相对调整值。
- 根据权利要求83-91任一项所述的装置,其特征在于,所述发送模块还用于向所述UE发送传输功率控制TPC信息,以使所述UE从所述TPC信息中解析出所述SRS的闭环功率控制参数值;所述TPC信息为经过第一无线网络临时标识RNTI加扰的信息。
- 根据权利要求83、90-92任一项所述的装置,其特征在于,若所述 SRS的功率控制参数包括所述SRS的闭环功率控制参数值;所述发送模块还用于向所述UE发送下行控制信息DCI,以使所述UE根据所述DCI获取所述SRS的闭环功率控制参数值。
- 根据权利要求93所述的装置,其特征在于,若所述DCI为第二载波上获取到的控制信息,则所述DCI至少包括第一载波标识,所述DCI用于指示所述UE获取所述第一载波标识对应的载波上的所述SRS的闭环功率控制参数值。
- 根据权利要求94所述的装置,其特征在于,所述第二载波为切换前的载波或除切换后的载波之外的任一载波,第一载波为切换后的载波。
- 根据权利要求93所述的装置,其特征在于,若所述DCI为第一载波上获取到的控制信息;则所述DCI用于指示所述UE从所述DCI中获取所述SRS的闭环功率控制参数值。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12593341B2 (en) * | 2021-05-10 | 2026-03-31 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method for carrier determination, terminal device, and network device |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108365930B (zh) * | 2017-01-26 | 2021-08-31 | 华为技术有限公司 | 上行测量参考信号的功率控制方法、网络设备及终端设备 |
| CN110621063B (zh) | 2017-05-05 | 2022-06-07 | 华为技术有限公司 | 上行链路传输的功率控制方法 |
| KR102379822B1 (ko) * | 2017-06-15 | 2022-03-30 | 삼성전자 주식회사 | 빔포밍 시스템에서 단말의 송신 전력 제어 방법 및 장치 |
| WO2018230901A1 (ko) | 2017-06-15 | 2018-12-20 | 삼성전자 주식회사 | 빔포밍 시스템에서 단말의 송신 전력 제어 방법 및 장치 |
| CN110035484A (zh) | 2018-01-12 | 2019-07-19 | 中兴通讯股份有限公司 | 一种功率控制方法、第一通信节点和第二通信节点 |
| CN110049539A (zh) * | 2018-01-16 | 2019-07-23 | 维沃移动通信有限公司 | 上行功率控制参数配置方法、终端及网络设备 |
| CN110351040B (zh) * | 2018-04-03 | 2020-08-14 | 维沃移动通信有限公司 | 探测参考信号传输、配置方法、用户设备及网络侧设备 |
| US11350416B2 (en) * | 2018-07-20 | 2022-05-31 | Qualcomm Incorporated | Physical uplink control channel repetition configuration |
| CN110859004B (zh) * | 2018-08-23 | 2023-12-08 | 维沃移动通信有限公司 | 用于确定物理上行共享信道发送功率的方法和设备 |
| CN110881218A (zh) * | 2018-09-05 | 2020-03-13 | 维沃移动通信有限公司 | 探测参考信号传输方法和终端设备 |
| CN110972246B (zh) * | 2018-09-28 | 2023-09-22 | 维沃移动通信有限公司 | 功率控制方法、传输功率控制参数确定方法及相关设备 |
| US11172495B2 (en) * | 2019-01-11 | 2021-11-09 | Qualcomm Incorporated | Collision handling |
| US11388723B2 (en) * | 2019-03-28 | 2022-07-12 | Ofinno, Llc | Uplink transmission in a wireless communication system |
| CN111263430B (zh) * | 2019-04-30 | 2021-11-09 | 维沃移动通信有限公司 | Srs功率控制方法和设备 |
| US11490402B2 (en) * | 2019-07-05 | 2022-11-01 | Qualcomm Incorporated | Power control based on semi-static direction for dual connectivity |
| CN111800861A (zh) | 2019-07-12 | 2020-10-20 | 维沃移动通信有限公司 | 功率控制方法及设备 |
| CN113613322B (zh) * | 2019-08-12 | 2023-06-20 | Oppo广东移动通信有限公司 | 用于确定发射功率的方法和装置 |
| CN111092710A (zh) | 2019-11-08 | 2020-05-01 | 中兴通讯股份有限公司 | 发送参数确定方法、电子装置、设备及介质 |
| EP3829076A3 (en) | 2019-11-28 | 2021-08-04 | Samsung Electronics Co., Ltd. | Transmission power control of sounding reference signals in wireless communication system and device |
| CN113596975B (zh) | 2020-04-30 | 2022-12-06 | 华为技术有限公司 | 一种上行功率控制方法及装置 |
| KR102900322B1 (ko) * | 2020-12-16 | 2025-12-16 | 삼성전자주식회사 | 전자 장치 및 전자 장치에서 기준 신호를 전송하는 방법 |
| CN116671213A (zh) | 2021-01-07 | 2023-08-29 | 华为技术有限公司 | 确定发送功率的方法及装置 |
| CN117796054A (zh) * | 2021-07-09 | 2024-03-29 | 高通股份有限公司 | 特定于波束的虚拟功率余量报告 |
| US20240098650A1 (en) * | 2022-09-16 | 2024-03-21 | Qualcomm Incorporated | Transmitting secondary cell transmissions using transmit power control adjustment values associated with a primary cell |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103369654A (zh) * | 2012-04-09 | 2013-10-23 | 电信科学技术研究院 | 功控参数的指示及功控方法和设备 |
| CN103634887A (zh) * | 2012-08-24 | 2014-03-12 | 华为技术有限公司 | 载波汇聚场景下用户设备的上行功率控制方法和装置 |
| EP2765732A2 (en) * | 2013-02-06 | 2014-08-13 | Samsung Electronics Co., Ltd | Method and apparatus for transmitting channel sounding reference signal in wireless communication system |
| CN104081838A (zh) * | 2012-01-30 | 2014-10-01 | 松下电器(美国)知识产权公司 | 无线通信终端装置及发送功率控制方法 |
| CN104955144A (zh) * | 2011-12-19 | 2015-09-30 | 华为技术有限公司 | 一种上行发射功率控制方法及用户设备 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2409533B1 (en) * | 2009-03-17 | 2019-11-06 | InterDigital Patent Holdings, Inc. | Method and apparatus for power control of sounding reference signal (srs) transmission |
| KR101752025B1 (ko) | 2010-04-30 | 2017-06-28 | 선 페이턴트 트러스트 | 단말 장치 및 참조 신호의 전력 제어 방법 |
| JP2014523219A (ja) * | 2011-08-12 | 2014-09-08 | 富士通株式会社 | 上りパワー制御方法及び装置 |
| WO2013048143A2 (en) * | 2011-09-27 | 2013-04-04 | Samsung Electronics Co., Ltd. | A method and appratus for transmission power control for a sounding reference signal |
| EP2761780A1 (en) * | 2011-09-30 | 2014-08-06 | Interdigital Patent Holdings, Inc. | Multipoint transmission in wireless communication |
| CN103312484B (zh) * | 2012-03-16 | 2017-12-29 | 中兴通讯股份有限公司 | 探测参考信号发射功率的控制方法、用户设备和基站 |
| JP6073073B2 (ja) * | 2012-05-10 | 2017-02-01 | シャープ株式会社 | 端末装置、基地局装置および通信方法 |
| KR20140009902A (ko) * | 2012-07-12 | 2014-01-23 | 주식회사 케이티 | 상향링크 사운딩 참조신호 전송전력 제어방법 및 그 단말, 송수신포인트 |
| RS57419B1 (sr) * | 2012-08-01 | 2018-09-28 | Sun Patent Trust | Uređaj terminala za bežičnu komunikaciju, uređaj bazne stanice za bežičnu komunikaciju i bežični komunikacioni metod |
| US10159052B2 (en) | 2012-08-03 | 2018-12-18 | Qualcomm Incorporated | Method and apparatus for sounding reference signal triggering and power control for coordinated multi-point operations |
| US9414335B2 (en) * | 2014-02-06 | 2016-08-09 | Electronics And Telecommunications Research Instit | Method and apparatus for transmitting uplink signal or uplink channel |
| CN105099632B (zh) | 2014-04-23 | 2019-12-13 | 北京三星通信技术研究有限公司 | 一种上行探测参考信号传输的方法和设备 |
| US10547426B2 (en) | 2016-03-14 | 2020-01-28 | Samsung Electronics Co., Ltd. | Transmission of sounding reference signals in communication systems with carrier aggregation |
| US10333670B2 (en) * | 2016-05-06 | 2019-06-25 | Qualcomm Incorporated | Sounding reference signals with collisions in asymmetric carrier aggregation |
-
2016
- 2016-05-13 KR KR1020187036269A patent/KR102235543B1/ko active Active
- 2016-05-13 CN CN201680030409.5A patent/CN107637143B/zh active Active
- 2016-05-13 ES ES20200054T patent/ES2935186T3/es active Active
- 2016-05-13 WO PCT/CN2016/082122 patent/WO2017193398A1/zh not_active Ceased
- 2016-05-13 US US16/301,102 patent/US10506520B2/en active Active
- 2016-05-13 RU RU2018143936A patent/RU2701380C1/ru active
- 2016-05-13 EP EP16901353.9A patent/EP3454608B1/en active Active
- 2016-05-13 EP EP20200054.3A patent/EP3843466B1/en active Active
- 2016-05-13 JP JP2018560030A patent/JP6710781B2/ja active Active
- 2016-05-13 EP EP22188692.2A patent/EP4152837B1/en active Active
- 2016-05-13 AU AU2016406586A patent/AU2016406586B2/en active Active
- 2016-05-13 CN CN201811432127.5A patent/CN109640385B/zh active Active
- 2016-05-13 KR KR1020217009276A patent/KR102376071B1/ko active Active
-
2019
- 2019-10-17 US US16/656,238 patent/US10631249B2/en active Active
-
2020
- 2020-04-08 US US16/842,922 patent/US11026179B2/en active Active
-
2021
- 2021-05-24 US US17/328,106 patent/US11419057B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104955144A (zh) * | 2011-12-19 | 2015-09-30 | 华为技术有限公司 | 一种上行发射功率控制方法及用户设备 |
| CN104081838A (zh) * | 2012-01-30 | 2014-10-01 | 松下电器(美国)知识产权公司 | 无线通信终端装置及发送功率控制方法 |
| CN103369654A (zh) * | 2012-04-09 | 2013-10-23 | 电信科学技术研究院 | 功控参数的指示及功控方法和设备 |
| CN103634887A (zh) * | 2012-08-24 | 2014-03-12 | 华为技术有限公司 | 载波汇聚场景下用户设备的上行功率控制方法和装置 |
| EP2765732A2 (en) * | 2013-02-06 | 2014-08-13 | Samsung Electronics Co., Ltd | Method and apparatus for transmitting channel sounding reference signal in wireless communication system |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP3454608A4 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12593341B2 (en) * | 2021-05-10 | 2026-03-31 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method for carrier determination, terminal device, and network device |
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| US20190191382A1 (en) | 2019-06-20 |
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| EP3454608A4 (en) | 2019-04-24 |
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