WO2018129739A1 - 一种确定发射功率的方法及无线通讯设备 - Google Patents

一种确定发射功率的方法及无线通讯设备 Download PDF

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Publication number
WO2018129739A1
WO2018129739A1 PCT/CN2017/071281 CN2017071281W WO2018129739A1 WO 2018129739 A1 WO2018129739 A1 WO 2018129739A1 CN 2017071281 W CN2017071281 W CN 2017071281W WO 2018129739 A1 WO2018129739 A1 WO 2018129739A1
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Prior art keywords
wireless communication
communication device
power
value
cmax
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PCT/CN2017/071281
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English (en)
French (fr)
Chinese (zh)
Inventor
吴茜
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to JP2019538143A priority Critical patent/JP2020507256A/ja
Priority to PCT/CN2017/071281 priority patent/WO2018129739A1/zh
Priority to EP17891150.9A priority patent/EP3554150B1/en
Priority to CN201780066946.XA priority patent/CN109891953B/zh
Publication of WO2018129739A1 publication Critical patent/WO2018129739A1/zh
Priority to US16/512,418 priority patent/US10785731B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/04—Communication route or path selection, e.g. power-based or shortest path routing based on wireless node resources
    • H04W40/08—Communication route or path selection, e.g. power-based or shortest path routing based on wireless node resources based on transmission power
    • 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
    • H04W52/246—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters where the output power of a terminal is based on a path parameter calculated in said terminal
    • 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
    • H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non-transmission
    • H04W52/283—Power depending on the position of the mobile
    • 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
    • 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
    • H04W52/36—Transmission power control [TPC] using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
    • 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]
    • H04W52/38—TPC being performed in particular situations
    • H04W52/383—TPC being performed in particular situations power control in peer-to-peer links

Definitions

  • the present application relates to the field of communications, and in particular, to a method for determining transmit power and a wireless communication device.
  • the frequency range used by the tolling station is very close to the frequency range used by the Intelligent Traffic System (ITS).
  • ITS Intelligent Traffic System
  • ETSI European Telecommunications Standards Institute
  • TS Technical Specification
  • D-MPR dynamic maximum power reduction
  • P CMAX_H,c MIN ⁇ P EMAX,c ,P PowerClass ⁇ ;
  • the above method only modifies the lower limit of the maximum configured transmit power, and does not modify the upper limit.
  • the upper limit is still larger than the general case specified by the coexistence requirement. Therefore, the above method does not satisfactorily meet the coexistence of ETSI. It is required that there will still be large interference between the devices.
  • Embodiments of the present invention provide a method for determining transmit power and a wireless communication device, which are used to suppress interference between devices and meet coexistence requirements of multiple devices.
  • the first aspect of the embodiments of the present invention provides a method for determining transmit power, including:
  • the first wireless communication device determines the distance between the second wireless communication device and the second wireless communication device, and when the first wireless communication device determines that the first condition is met, if the first wireless communication device determines its own correspondence
  • the maximum transmit power is greater than the preset threshold, and the maximum transmit power is adjusted to be the preset threshold, where the preset threshold is used to suppress interference of the first wireless communication device to the receive performance of the second wireless communication device under the first condition
  • the first condition includes: a distance between the first wireless communication device and the second wireless communication device is less than or equal to a first threshold, and a difference between an operating frequency of the first wireless communication device and an operating frequency of the second wireless communication device is less than Or equal to the second threshold.
  • the receiving performance includes the sensitivity of receiving, the receiving range, and the receiving blocking indicator.
  • the present invention by limiting the preset threshold, under the first condition, interference of the first wireless communication device with the receiving performance of the second wireless communication device on the second wireless communication device may be suppressed, thereby satisfying the first wireless communication.
  • the coexistence requirement of the device and the second wireless communication device by limiting the preset threshold, under the first condition, interference of the first wireless communication device with the receiving performance of the second wireless communication device on the second wireless communication device may be suppressed, thereby satisfying the first wireless communication.
  • the maximum transmit power corresponding to the first wireless communications device includes: a maximum configured transmit power of a carrier of the first wireless communications device P CMAX,c .
  • interference can be reduced by adjusting the maximum configured transmit power of the carrier, and an implementation manner for reducing interference between devices is provided, and the achievability of the solution is improved.
  • the first wireless communication device may adjust the target carrier of the first wireless communication device by using the following formula: Maximum configured transmit power P CMAX,c :
  • P CMAX_H,c MIN ⁇ P EMAX,c ,P PowerClass ⁇ ;
  • P EMAX,c is the power value delivered by the Radio Resource Control (RRC) layer to the target carrier
  • P EMAX,c is equal to the preset threshold
  • ⁇ T C,c is the first power loss value
  • P PowerClass is The power level of the first wireless communication device
  • MPR c is the first power backoff value
  • A-MPR c is the second power back value
  • ⁇ T IB, c is the second power loss value
  • ⁇ T ProSe is the third power loss value
  • P-MPR c is the third power backoff value.
  • the target carrier refers to any carrier corresponding to the first wireless communication device
  • the first power loss value refers to the power loss caused by the flatness of the filter of the first wireless communication device on the target carrier
  • the second power The loss value and the third power loss value refer to the power loss caused by the additional filter
  • the first power backoff value refers to the maximum power backoff value corresponding to the target carrier
  • the second power backoff value refers to the target carrier.
  • the third power backoff value refers to power backoff caused by power sharing by multiple wireless connections corresponding to the first wireless communication device on the target carrier.
  • the embodiment of the invention provides a specific manner for adjusting the maximum configured transmit power of a carrier, and improves the achievability of the solution.
  • the first wireless communications device may adjust the target carrier of the first wireless communications device by using the following formula: Maximum configured transmit power P CMAXc :
  • P CMAX_H,c MIN ⁇ P EMAX,c ,P PowerClass ,P Regulatory,c ⁇ ;
  • P EMAX,c is the power value delivered by the RRC layer to the target carrier
  • ⁇ T C,c is the first power loss value
  • P PowerClass is the power level of the first wireless communication device
  • MPR c is the first power back value
  • A-MPR c is the second power backoff value
  • ⁇ T IB,c is the second power loss value
  • ⁇ T ProSe is the third power loss value
  • P-MPR c is the third power back value
  • P Regulatory,c is equal to Preset threshold.
  • the embodiment of the invention provides another specific manner for adjusting the maximum configured transmit power of the carrier, which improves the flexibility of the solution.
  • PCR c is the preset carrier power backoff value.
  • the embodiment of the invention provides another specific manner for adjusting the maximum configured transmit power of the carrier, which improves the flexibility of the solution.
  • EIRP_P Regulatory, c is the effective carrier omnidirectional radiated power value of the preset carrier
  • G Ant is the antenna gain of the first wireless communication device
  • EIRP_PSD Regulatory, c is the effective carrier omnidirectional radiated power spectral density value of the preset carrier.
  • the effective omnidirectional radiated power value of the carrier can be set to adjust the maximum configured transmit power of the carrier, thereby enabling the device to meet the coexistence requirement and improving the flexibility of the solution.
  • PSD Regulatory, c is the preset carrier power spectral density value, and BW is the bandwidth occupied by the target carrier.
  • the power spectral density value of the carrier can be set to adjust the maximum configured transmit power of the carrier, so that the device meets the coexistence requirement and improves the flexibility of the solution.
  • the first wireless communication device may adjust the target carrier of the first wireless communication device by using the following formula: Maximum configured transmit power P CMAX,c :
  • P CMAX_H,c MIN ⁇ P EMAX,c ,P PowerClass ,P Regulatory,c ,PSD Regulatory,c +10lgBW ⁇ ;
  • P EMAX,c is the power value delivered by the RRC layer to the target carrier
  • ⁇ T C,c is the first power loss value
  • P PowerClass is the power level of the first wireless communication device
  • MPR c is the first power back value
  • A-MPR c is the second power backoff value
  • ⁇ T IB,c is the second power loss value
  • ⁇ T ProSe is the third power loss value
  • P Regulatory,c is the pre A threshold is set
  • the PSD Regulatory, c is a preset carrier power spectral density value.
  • the embodiments of the present invention can simultaneously limit the carrier configuration transmit power and the carrier power spectral density to meet the coexistence requirement, and improve the flexibility of the solution.
  • the maximum transmit power corresponding to the first wireless communications device includes: a maximum configured transmit power of the first wireless communications device, P CMAX .
  • the embodiment of the present invention can suppress the first wireless by adjusting the maximum configured transmit power of the first wireless communication device.
  • the communication device reduces the receiving performance of the second wireless communication device, and provides an implementation manner that satisfies the coexistence requirement, thereby improving the achievability of the solution.
  • the first wireless communications device can adjust the maximum configuration transmission of the first wireless communications device by using the following formula: Power P CMAX :
  • PCMAX_H MIN ⁇ 10log 10 ⁇ p EMAX,c ,P PowerClass ⁇ ;
  • 10log 10 ⁇ p EMAX,c is equal to the preset threshold; ⁇ T C is the fourth power loss value; P PowerClass is the power level of the first wireless communication device; MPR is the fourth power backoff value; A-MPR is the fifth Power backoff value; ⁇ T IB,c is the second power loss value; ⁇ T ProSe is the third power loss value; P-MPR is the sixth power back value; p EMAX,c is the RRC layer corresponding to the first wireless communication device The power value delivered by the carrier.
  • the fourth power loss value refers to the power loss caused by the flatness of the filter of the first wireless communication device on the first wireless communication device
  • the second power loss value and the third power loss value refer to additional The power loss caused by the filter
  • the fourth power backoff value refers to the maximum power backoff value corresponding to the first wireless communication device
  • the fifth power backoff value refers to the additional maximum power backoff corresponding to the first wireless communication device.
  • the value, the sixth power back-off value refers to the power back-off caused by the power sharing by the multiple wireless connections corresponding to the first wireless communication device on the first wireless communication device.
  • the embodiment of the invention provides a specific manner for adjusting the maximum configured transmission power of the first wireless communication device, and improves the achievability of the solution.
  • the first wireless communications device can adjust the maximum configuration transmission of the first wireless communications device by using the following formula: Power P CMAX :
  • P CMAX_H MIN ⁇ 10log 10 ⁇ p EMAX,c ,P PowerClass ,P Regulatory ⁇ ;
  • p EMAX,c is a power value sent by the RRC to a carrier corresponding to the first wireless communication device; ⁇ T C is a fourth power loss value; P PowerClass is a power level of the first wireless communication device; and MPR is a fourth power back Depreciation ; A-MPR is the fifth power backoff value; ⁇ T IB, c is the second power loss value; ⁇ T ProSe is the third power loss value; P-MPR is the sixth power back value; P Regulatory is equal to the preset Threshold.
  • the embodiment of the invention provides another specific manner for adjusting the maximum configured transmit power of the first wireless communication device, which improves the flexibility of the solution.
  • PCR is the preset device power backoff value.
  • the embodiment of the invention provides another specific manner for adjusting the maximum configured transmit power of the first wireless communication device, which improves the flexibility of the solution.
  • EIRP_P Regulatory is the effective omnidirectional radiated power value of the preset device
  • G Ant is the antenna gain of the first wireless communication device
  • EIRP_PSD Regulatory is the effective omnidirectional radiated power spectral density value of the preset device.
  • the embodiment of the invention can set the effective omnidirectional radiation power value of the device to adjust the maximum configured transmission power of the device, so that the device meets the coexistence requirement and improves the flexibility of the solution.
  • the PSD Regulatory is the preset device power spectral density value, and the BW is the bandwidth occupied by the first wireless communication device.
  • the embodiment of the present invention can set the power spectral density value of the device to adjust the maximum configured transmission power of the device, so that the device meets the coexistence requirement and improves the flexibility of the solution.
  • the first wireless communication device can adjust the maximum configuration of the first wireless communication device by using the following formula: Transmit power P CMAX :
  • P CMAX_H MIN ⁇ 10log 10 ⁇ p EMAX,c ,P PowerClass ,P Regulatory ,PSD Regulatory +10lgBW ⁇ ;
  • p EMAX,c is a power value sent by the RRC layer to a carrier corresponding to the first wireless communication device; ⁇ T C is a fourth power loss value; P PowerClass is a power level of the first wireless communication device; and MPR is a fourth power Fallback value; A-MPR is the fifth power backoff value; ⁇ T IB, c is the second power loss value; ⁇ T ProSe is the third power loss value; P-MPR is the sixth power back value; P Regulatory is the pre Set the threshold; PSD Regulatory is the preset device power spectral density value.
  • the embodiment of the invention can simultaneously limit the power spectral density of the device and the configured transmit power of the device to meet the coexistence requirement and improve the flexibility of the solution.
  • the first condition further includes: the first wireless communication The difference in angle between the antenna direction of the device and the antenna direction of the second wireless communication is less than or equal to a third threshold.
  • the wireless communication device determines that the first condition is met, if the first wireless communication device determines that the maximum transmit power corresponding to the wireless communication device is not greater than a preset threshold, the first wireless communication device performs other processes.
  • the first wireless communication device may determine the target of the first wireless communication device by using the following formula Carrier's maximum configured transmit power P CMAX,c :
  • P CMAX_H,c MIN ⁇ P EMAX,c ,P PowerClass ⁇ ;
  • P EMAX,c is the power value delivered by the RRC layer to the target carrier, P EMAX,c is less than a preset threshold; ⁇ T C,c is the first power loss value; MPR c is the first power backoff value; A- MPR c is the second power backoff value; ⁇ T IB,c is the second power loss value; ⁇ T ProSe is the third power loss value; P-MPR c is the third power back value; P PowerClass is the first wireless communication device Power rating.
  • the first wireless communication device may determine the target of the first wireless communication device by using the following formula: Carrier's maximum configured transmit power P CMAX,c :
  • P CMAX_H,c MIN ⁇ P EMAX,c ,P PowerClass ,P Regulatory,c ⁇ ;
  • P EMAX,c is the power value delivered by the RRC layer to the target carrier
  • ⁇ T C,c is the first power loss value
  • P PowerClass is the power level of the first wireless communication device
  • MPR c is the first power back value
  • A-MPR c is the second power backoff value
  • ⁇ T IB,c is the second power loss value
  • ⁇ T ProSe is the third power loss value
  • P-MPR c is the third power back value
  • P Regulatory,c is equal to Preset threshold.
  • PCR c is the preset carrier power backoff value
  • EIRP_P Regulatory, c is the preset carrier effective isotropic radiation power value
  • G Ant is the antenna gain of the first wireless communication device
  • PSD Regulatory, c is the preset carrier power spectral density Value
  • BW is the bandwidth occupied by the target carrier
  • EIRP_PSD Regulatory, c is the effective carrier omnidirectional radiated power spectral density value of the preset carrier.
  • the first wireless communication device may determine the maximum of the first wireless communication device by using the following formula: Configure the transmit power P CMAX :
  • P CMAX_H MIN ⁇ 10log 10 ⁇ p EMAX,c ,P PowerClass ⁇
  • p EMA, Xc is the power value delivered by the RRC layer to the carrier corresponding to the first wireless communication device, 10 log 10 ⁇ p EMAX, c is less than a preset threshold; ⁇ T C is the fourth power loss value; P PowerClass is the first Power class of the wireless communication device; MPR is the fourth power backoff value; A-MPR is the fifth power backoff value; ⁇ T IB, c is the second power loss value; ⁇ T ProSe is the third power loss value; P-MPR The sixth power backoff value.
  • the first wireless communication device may determine, by using the following formula, the first wireless communication device Maximum configured transmit power P CMAX :
  • P CMAX_H MIN ⁇ 10log 10 ⁇ p EMAX,c ,P PowerClass ,P Regulatory ⁇ ;
  • p EMAX,c is a power value sent by the RRC layer to a carrier corresponding to the first wireless communication device; ⁇ T C is a fourth power loss value; P PowerClass is a power level of the first wireless communication device; and MPR is a fourth power Fallback value; A-MPR is
  • ⁇ T IB,c is a second power loss value
  • ⁇ T ProSe is a third power loss value
  • P-MPR is a sixth power back value
  • P Regulatory is equal to a preset threshold.
  • the PCR is the preset device power backoff value
  • the EIRP_P Regulatory is the preset device effective isotropic radiation power value
  • the G Ant is the antenna gain of the first wireless communication device
  • the PSD Regulatory is the preset device power spectral density value
  • the BW is The bandwidth occupied by the first wireless communication device
  • EIRP_PSD Regulatory is the effective isotropic radiation power spectral density value of the preset device.
  • a second aspect of the embodiments of the present invention provides a wireless communication device, where the wireless communication device includes:
  • a first determining module configured to determine a distance between the wireless communication device and the second wireless communication device
  • a second determining module configured to determine an operating frequency of the second wireless communication device
  • the adjusting module is configured to determine that the maximum transmit power corresponding to the wireless communication device is greater than a preset threshold, and adjust the maximum transmit power, so that the adjusted maximum transmit power is equal to or less than a preset threshold, and the preset threshold is used. Under the first condition, suppressing interference of the wireless communication device with the receiving performance of the second wireless communication device;
  • the first condition includes: the distance is less than or equal to the first threshold, and the difference between the operating frequency of the wireless communication device and the operating frequency of the second wireless communication device is less than or equal to the second threshold.
  • the maximum transmit power corresponding to the wireless communication device includes: a maximum configured transmit power P CMAX,c of the carrier of the wireless communication device.
  • the adjustment module includes:
  • a first adjusting unit configured to adjust a maximum configured transmit power P CMAX,c of the target carrier of the wireless communication device by using the following formula:
  • P CMAX_H,c MIN ⁇ P EMAX,c ,P PowerClass ⁇ ;
  • P EMAX,c is the power value that the RRC layer sends to the target carrier by the radio resource control, P EMAX,c is equal to the preset threshold; ⁇ T C,c is the first power loss value; P PowerClass is the power level of the wireless communication device ; MPR c is the first power backoff value; A-MPR c is the second power backoff value; ⁇ T IB, c is the second power loss value; ⁇ T ProSe is the third power loss value; P-MPR c is the third Power backoff value.
  • the adjustment module includes:
  • a second adjusting unit configured to adjust a maximum configured transmit power P EMAX,c of the target carrier of the wireless communication device by using the following formula:
  • P CMAX_H,c MIN ⁇ P EMAX,c ,P PowerClass ,P Regulatory,c ⁇ ;
  • P EMAX,c is a power value that the RRC layer sends to the target carrier by the radio resource control; ⁇ T C,c is the first power loss value; P PowerClass is the power level of the wireless communication device; and MPR c is the first power backoff Value; A-MPR c is the second power backoff value; ⁇ T IB,c is the second power loss value; ⁇ T ProSe is the third power loss value; P-MPR c is the third power back value; P Regulatory,c Equal to the preset threshold.
  • PCR c is the preset carrier power backoff value.
  • EIRP_P Regulatory, c is the effective carrier omnidirectional radiated power value of the preset carrier
  • G Ant is the antenna gain of the wireless communication device
  • EIRP_PSD Regulatory, c is the effective carrier omnidirectional radiated power spectral density value of the preset carrier.
  • PSD Regulatory, c is the preset carrier power spectral density value, and BW is the bandwidth occupied by the target carrier.
  • the maximum transmit power corresponding to the wireless communications device includes: a maximum configured transmit power P CMAX of the wireless communications device.
  • the adjustment module includes:
  • the third adjusting unit is configured to adjust the maximum configured transmitting power of the wireless communication device by using the following formula:
  • P CMAX_H MIN ⁇ 10log 10 ⁇ p EMAX,c ,P PowerClass ⁇ ;
  • p EMAX,c is a power value that the radio resource control RRC sends to the carrier corresponding to the wireless communication device, 10 log 10 ⁇ p EMAX, c is equal to a preset threshold; ⁇ T C is a fourth power loss value; P PowerClass is wireless communication Power level of the device; MPR is the fourth power backoff value; A-MPR is the fifth power backoff value; ⁇ T IB, c is the second power loss value; ⁇ T ProSe is the third power loss value; P-MPR is the first Six power backoff values.
  • the adjustment module includes:
  • the fourth adjusting unit is configured to adjust the maximum configured transmitting power of the wireless communication device by using the following formula:
  • P CMAX_H MIN ⁇ 10log 10 ⁇ p EMAX,c ,P PowerClass ,P Regulatory ⁇ ;
  • p EMAX,c is a power value that is sent by the RRC layer of the radio resource control to the carrier corresponding to the wireless communication device; ⁇ T C is the fourth power loss value; P PowerClass is the power level of the wireless communication device; and MPR is the fourth power back. Depreciation ; A-MPR is a fifth power backoff value; ⁇ T IB, c is a second power loss value; the ⁇ T ProSe is a third power loss value; and the P-MPR is a sixth power back value; The P Regulatory is equal to the preset threshold.
  • PCR is the preset device power backoff value.
  • EIRP_P Regulatory is the effective omnidirectional radiated power value of the preset device, and G Ant is the antenna gain of the wireless communication device.
  • PSD Regulatory is the preset device power spectral density value
  • BW is the bandwidth occupied by the wireless communication device
  • EIRP_PSD Regulatory is the effective omnidirectional radiation power spectral density value of the preset device.
  • the first condition further includes: The difference in angle between the direction of the antenna and the direction of the antenna of the second wireless communication device is less than or equal to a third threshold.
  • a third aspect of the embodiments of the present invention provides a wireless communication device, including: an input device, an output device, a processor, and a memory;
  • the memory is used to store the program
  • the processor is configured to execute a program in the memory, and specifically includes the following steps:
  • the wireless communication device determines that the first condition is met, if it is determined that the maximum transmit power corresponding to the wireless communication device is greater than a preset threshold, the maximum transmit power is adjusted, so that the adjusted maximum transmit power is equal to or less than a preset threshold, and the preset threshold is used. Under the first condition, suppressing interference of the wireless communication device with the receiving performance of the second wireless communication device;
  • the first condition includes: the distance is less than or equal to the first threshold, and the difference between the operating frequency of the wireless communication device and the operating frequency of the second wireless communication device is less than or equal to the second threshold.
  • the maximum transmit power corresponding to the first wireless communication device is adjusted.
  • the adjusted maximum transmit power is less than or equal to a preset threshold, where the first condition includes: a distance between the first wireless communication device and the second wireless communication device is less than or equal to a first threshold, and the first wireless communication device The difference between the operating frequency and the operating frequency of the second wireless communication device is less than or equal to the second threshold.
  • the interference of the first wireless communication device to the receiving performance of the second wireless communication device can be suppressed, and the coexistence requirement of the first wireless communication device and the second wireless communication device under the first condition can be met. That is to say, the solution can suppress interference between devices and meet the coexistence requirements of multiple devices.
  • FIG. 1 is a flow chart of an embodiment of a method for determining transmit power in an embodiment of the present invention
  • FIG. 2 is a schematic diagram of an embodiment of a wireless communication device according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of another embodiment of a wireless communication device according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of another embodiment of a wireless communication device according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of another embodiment of a wireless communication device according to an embodiment of the present invention.
  • GSM Global System of Mobile communication
  • Code Division Multiple Access Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the communication device in the embodiment of the present invention includes but is not limited to a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal, a Mobile Telephone, and a Mobile Phone ( Handset), portable equipment, and automatic charging equipment, etc.
  • the communication device can communicate with one or more core networks via a radio access network (for example, the communication device can be a mobile phone (or A "cellular" telephone, a computer with wireless communication capabilities, etc., the communication device can also be a portable, pocket, handheld, computer built-in or vehicle-mounted mobile device.
  • Embodiments of the present invention provide a method for determining transmit power and a wireless communication device, which are used to suppress interference between devices and meet coexistence requirements of multiple devices.
  • the method and the wireless communication device in the embodiment of the present invention are applicable to the scenario where the ITS terminal and the automatic charging device coexist, and are also applicable to the scenario where the other wireless communication devices coexist, which is not limited in the embodiment of the present invention.
  • the wireless access system is divided into three layers, wherein layer one is a physical (PHY) layer, and layer two is a media access control (MAC) layer and a radio link control sublayer (Radio Link Control, RLC) and Packet Data Convergence Protocol (PDCP), and Layer 3 is the Radio Resource Control (RRC) layer.
  • the RRC layer in the embodiment of the present invention refers to the third layer in the wireless communication system accessed by the first wireless communication device, and P EMAX, c is the system corresponding to the first wireless communication device in the signaling of the RRC layer.
  • the power value delivered by a carrier, ⁇ p EMAX,c is the sum of the power values delivered by the system for each carrier corresponding to the first wireless communication in the signaling of the RRC layer.
  • the wireless communication device includes an RF filter, and the unevenness of the RF filter causes power loss.
  • the first power loss value ⁇ T C,c refers to the flatness of the RF filter of the first wireless communication device on the target carrier.
  • the resulting power loss, the fourth power loss value ⁇ T C refers to the maximum value of the power loss values caused by the flatness of the radio frequency filter of the first wireless communication device on each carrier, with respect to ⁇ T C, c and ⁇ T C
  • 3GPP TS36.101 which is not described here.
  • the second power loss value ⁇ T IB,c and the third power loss value ⁇ T ProSe refer to power loss brought to the first wireless communication device by the filter added to meet the requirements of simultaneous multi-band generation, etc., regarding ⁇ T IB, Specific definitions and values of c and ⁇ T ProSe can be referred to 3GPP TS 36.101 , and are not described here.
  • the first power backoff value MPR c refers to the maximum power backoff value corresponding to the target carrier
  • the second power backoff value A-MPR c refers to the additional maximum power backoff value corresponding to the target carrier
  • the value P-MPR c refers to the power backoff caused by the power sharing of the plurality of wireless connections corresponding to the first wireless communication device on the target carrier
  • the fourth power backoff value MPR refers to the correspondence of the first wireless communication device.
  • the maximum power backoff value, the fifth power backoff value A-MPR refers to an additional maximum power backoff value corresponding to the first wireless communication device, and the sixth power backoff value P-MPR refers to the first wireless communication device.
  • the power sharing caused by the corresponding multiple wireless connections is caused by the power backoff caused by the first wireless communication device, and the specific definitions of MPR c , A-MPR c , P-MPR c , MPR, A-MPR and P-MPR Reference may be made to 3GPP TS 36.101, which is not described here.
  • an embodiment of the method for determining transmit power in the embodiment of the present invention includes:
  • the first wireless communication device determines a distance between the first wireless communication device and the second wireless communication device.
  • the first wireless communication device can acquire the location of the second wireless communication device, and then determine the first wireless communication device and the second according to the location and the location thereof.
  • the distance between wireless communication devices may determine the location of the second wireless communication device by querying the database, and may determine the location of the second wireless communication device by using the received signal sent by the second wireless communication device, and may further determine by using other methods.
  • the location of the second wireless communication device is not limited herein.
  • the first wireless communication device determines that the distance between the first wireless communication device and the second wireless communication device is a dynamic process, and the distance should be related to the movement of the first wireless communication device and/or the second wireless communication device. Alternatively, the first wireless communication device can acquire the distance periodically or irregularly.
  • the first wireless communication device determines an operating frequency of the second wireless communication device.
  • the second wireless communication device operates in a certain frequency band, and the first wireless communication device can determine the working frequency of the second wireless communication device by querying the database, and can also determine the work of the second wireless communication device by receiving a signal sent by the second wireless communication device.
  • the frequency of the second wireless communication device can be determined by other methods, which is not limited herein. After the first wireless communication device determines the operating frequency of the second wireless communication device, the difference between the operating frequency of the second wireless communication device and the operating frequency of the second wireless communication device can be determined.
  • the first wireless communication device adjusts a maximum transmit power corresponding to the first wireless communication device.
  • the first wireless communication device can determine whether the first wireless communication device meets the a first condition, the first condition includes: the distance is less than or equal to a first threshold, the difference is less than or equal to a second threshold, and when the first wireless communication device determines that the first condition is met, the first wireless communication device determines the first Whether the maximum transmit power corresponding to the wireless communication device is greater than a preset threshold, and if the value is greater than, the first wireless communication device adjusts the maximum transmit power, so that the adjusted maximum transmit power is less than or equal to the preset threshold.
  • the first threshold and the second threshold are based on a condition setting that generates interference between the first wireless communication device and the second wireless communication device, that is, when the first wireless communication device and the second wireless communication device meet the first condition. Interference may occur between the first wireless communication device and the second wireless communication device, and the specific value may be determined by testing or other means.
  • the preset threshold is used to suppress interference of the first wireless communication device with the receiving performance of the second wireless communication device under the first condition.
  • the maximum transmit power corresponding to the first wireless communication device is adjusted.
  • the adjusted maximum transmit power is less than or equal to a preset threshold, where the first condition includes: a distance between the first wireless communication device and the second wireless communication device is less than or equal to a first threshold, and the first wireless communication device The difference between the operating frequency and the operating frequency of the second wireless communication device is less than or equal to the second threshold.
  • the interference of the first wireless communication device to the receiving performance of the second wireless communication device can be suppressed, and the coexistence requirement of the first wireless communication device and the second wireless communication device under the first condition can be met. That is to say, the solution can suppress interference between devices and meet the coexistence requirements of multiple devices.
  • the first condition may include that the distance is less than or equal to the first threshold and the operating frequency difference is less than or equal to the second threshold, and may further include that the angle difference is less than or equal to the third threshold, and the angle difference is Refers to the difference in angle between the antenna direction of the first wireless communication device and the second wireless communication device, and the third threshold is also based on a condition setting of interference between the first wireless communication device and the second wireless communication device. of.
  • the maximum transmit power corresponding to the first wireless communication device may be the maximum configured transmit power of the carrier of the first wireless communication device, and may be the maximum configured transmit power of the first wireless communication device, or may be The maximum transmit power defined by the first wireless communication device based on other reasons. The following describes the maximum transmit power corresponding to the first wireless communication device as the maximum configured transmit power of the carrier, and the maximum transmit power corresponding to the first wireless communication device as the maximum configured transmit power of the device.
  • the maximum transmit power corresponding to the first wireless communication device is the maximum configured transmit power of the carrier.
  • the maximum transmit power corresponding to the first wireless communication device is the maximum configured transmit power of the carrier of the first wireless communication device, P CMAX,c , the first wireless
  • the communication device adjusts the maximum transmit power corresponding to the first wireless communication device by:
  • the first wireless communication device adjusts the maximum configured transmission power P CMAX,c of the target carrier by the following (1) to (3):
  • P CMAX_H,c MIN ⁇ P EMAX,c ,P PowerClass ⁇ (3);
  • P EMAX,c is the power value that the RRC layer delivers to the target carrier, and the RRC layer generally sets the power value based on the operator's setting or other reasons.
  • the value of P EMAX,c based on the operator or other reasons is compared with a preset threshold. When the value is greater than the preset threshold, the value of P EMAX,c is adjusted to a preset threshold at the RRC layer.
  • the first wireless communication device is sent to the first wireless communication device by using the signaling. At this time, the first wireless communication device determines the maximum configured transmission power of the target carrier according to the above formulas (1) to (3), so that the maximum configuration transmission of the target carrier can be performed. The power is less than or equal to the preset threshold.
  • the value of P EMAX is set based on the operator or other reasons , the value of c is less than the preset threshold, indicating that the original configured transmit power of the target carrier defined by 3GPP TS 36.101 is not less than a preset threshold.
  • the first wireless communication device does not need to adjust the maximum configured transmit power of the target carrier, and the RRC layer directly sends the value to the first wireless communication device by using signaling, and the first wireless communication device further uses the above formula (1) to ( 3) Determine the maximum configured transmit power of the target carrier.
  • the embodiment of the invention provides a specific manner for adjusting the maximum configured transmission power of the carrier of the first wireless communication device, and improves the achievability of the solution.
  • Mode 2 define a new amount of power.
  • the maximum transmit power corresponding to the first wireless communication device is the maximum configured transmit power of the carrier of the first wireless communication device, P CMAX,c , the first wireless
  • the communication device adjusts the maximum transmit power corresponding to the first wireless communication device by:
  • the first wireless communication device adjusts the maximum configured transmission power P CMAX,c of the target carrier by the following formulas (4) to (6):
  • P CMAX_H,c MIN ⁇ P EMAX,c ,P PowerClass ,P Regulatory,c ⁇ (6);
  • P Regulatory,c is a newly defined amount of power, and P Regulatory,c is equal to a preset threshold.
  • P Regulatory,c may be directly set to a preset threshold, or P Regulatory,c may be replaced with the following formula:
  • the PCR c is a preset carrier power backoff value, and the preset carrier power backoff value is set based on a preset threshold and a value of P PowerClass , and corresponds to different values in different scenarios.
  • EIRP_P Regulatory, c is a preset carrier effective omnidirectional radiation power value
  • G Ant is an antenna gain corresponding to the first wireless communication device.
  • the preset carrier effective omnidirectional radiation power value is set by the user or the system, and may be based on the effective omnidirectional radiation power of the carrier of the first wireless communication device and the second wireless communication device coexisting with the carrier under the first condition. The restrictions can be set based on other factors, which are not limited here.
  • the preset threshold is equal to the preset carrier effective isotropic radiation power value minus the antenna gain corresponding to the first wireless communication device.
  • PSD Regulatory, c is the preset carrier power spectral density value
  • BW is the bandwidth occupied by the target carrier. It should be understood that the preset carrier power spectral density value is set by the user or the system, and may specifically be set based on the limitation of the power spectral density of the carrier of the coexistence of the first wireless communication device and the second wireless communication device under the first condition. It can also be set based on other factors, which is not limited herein.
  • the preset threshold is equal to the PSD Regulatory, c + 10lg BW.
  • c is the effective carrier omnidirectional radiated power spectral density value of the preset carrier
  • BW is the bandwidth occupied by the target carrier
  • G Ant is the antenna gain corresponding to the first wireless communication device.
  • the preset carrier effective omnidirectional power spectral density value is set by the user or the system, and may be based on the effective omnidirectional radiation power spectrum of the coexistence of the first wireless communication device and the second wireless communication device under the first condition. The setting of the density may be set based on other factors, and is not limited herein.
  • the embodiment of the invention provides a plurality of specific manners for adjusting the maximum configured transmit power of the carrier of the first wireless communication device, thereby improving the flexibility of the solution.
  • Mode 3 define multiple new power quantities.
  • the maximum transmit power corresponding to the first wireless communication device is the maximum configured transmit power of the carrier of the first wireless communication device, P CMAX,c , the first wireless
  • the communication device adjusts the maximum transmit power corresponding to the first wireless communication device by:
  • the first wireless communication device adjusts the maximum configured transmission power P CMAX,c of the target carrier by the following formulas (11) to (13):
  • P CMAX_H,c MIN ⁇ P EMAX,c ,P PowerClass ,P Regulatory,c ,PSD Regulatory,c +10lg BW ⁇ (13);
  • the P Regulatory, c is a preset threshold, and may be set according to the limitation of the coexistence of the first wireless communication device and the second wireless communication device to the configured transmit power of the carrier, in the first condition, the PSD Regulatory, c is a pre-
  • the carrier power spectral density value may be set according to the limitation of the power spectral density of the carrier of the first wireless communication device and the second wireless communication device under the first condition, or may be set based on other factors, This is not a limitation.
  • the first wireless communication device determines the maximum configured transmission power of the target carrier by using the above formulas (11) to (13), and simultaneously satisfies the power spectral density and carrier of the carrier when the first wireless communication device and the second wireless communication device coexist.
  • the configuration of the transmit power is limited.
  • the effective omnidirectional radiated power of the carrier and the configured transmit power of the carrier may be simultaneously defined.
  • the first wireless communication device adopts the following formula ( 14) to (16) adjust the maximum configured transmit power of the target carrier P CMAX,c :
  • P CMAX_H,c MIN ⁇ P EMAX,c ,P PowerClass ,P Regulatory,c ,EIRP_P Regulatory,c -G Ant ⁇ (16);
  • EIRP_P Regulatory, c is the preset carrier effective isotropic radiation power value.
  • the effective omnidirectional radiated power of the carrier and the power spectral density of the carrier may be simultaneously defined.
  • the first wireless communication device adjusts the maximum configured transmit power P CMAX of the target carrier by using the following formulas (17) to (19) , c :
  • PSD Regulatory, c is the preset carrier power spectral density value
  • EIRP_P Regulatory, c is the preset carrier effective omnidirectional radiation power value
  • the preset threshold is equal to PSD Regulatory, c +10lgBW and EIRP_P Regulatory, c - G Ant The minimum value between.
  • the three parameters of the effective omnidirectional radiated power of the carrier, the configured transmit power of the carrier, and the power spectral density of the carrier may be simultaneously defined.
  • the first wireless communication device adjusts the method by the following formulas (20) to (22).
  • the maximum configured transmit power of the target carrier, P CMAX,c The maximum configured transmit power of the target carrier, P CMAX,c :
  • EIRP_P Regulatory, c is the preset carrier effective isotropic radiation power value
  • PSD Regulatory, c is the preset carrier power spectral density value
  • P Regulatory, c is the preset threshold.
  • the present application can simultaneously configure the transmit power of the carrier, the power spectral density of the carrier, the effective omnidirectional radiated power of the carrier, and the effective omnidirectional radiated power spectral density of the carrier.
  • Two or more parameters in the definition are defined, and the corresponding formulas are not listed here.
  • the above formulas (11) to (13), (14) to (16), (17) to (19), and (20) to (22) are not limited to the maximum configuration transmit power applicable to the target carrier.
  • the case of the threshold can also be applied to the case where the maximum configured transmission power of the target carrier is greater than a preset threshold.
  • the embodiment of the present invention defines a plurality of new power quantities, and can simultaneously satisfy a plurality of parameters of the carrier of the first wireless communication device when the first wireless communication device and the second wireless communication device coexist.
  • the maximum transmit power corresponding to the first wireless communication device is the maximum configured transmit power of the device.
  • the maximum transmit power corresponding to the first wireless communication device is the maximum configured transmit power P CMAX of the first wireless communication device
  • the first wireless communication device passes the following Equations (23) through (25) adjust the maximum configured transmit power P CMAX of the first wireless communication device:
  • P CMAX_H MIN ⁇ 10log 10 ⁇ p EMAX,c ,P PowerClass ⁇ (25);
  • ⁇ p EMAX,c is the sum of the power values delivered by the system in the signaling of the RRC layer for each carrier corresponding to the first wireless communication, and the RRC layer is generally set based on the operator's settings or other reasons.
  • a value of 10 log 10 ⁇ p EMAX,c is calculated according to the power value of each carrier set based on the operator or other reasons. And comparing the value with the preset threshold. When the value is greater than the preset threshold, the power value of each carrier is adjusted at the RRC layer, so that 10 log 10 ⁇ p EMAX,c is equal to the preset threshold, and then the letter is passed.
  • the power value of each carrier is sent, and the first wireless communication device determines the maximum configured transmit power of the first wireless communication device according to the above formulas (23) to (25), so that the maximum configuration of the first wireless communication device can be made.
  • the transmit power is less than or equal to a preset threshold.
  • the embodiment of the invention provides a specific manner for adjusting the maximum configured transmission power of the first wireless communication device, and improves the achievability of the solution.
  • Mode 2 define a new amount of power.
  • the maximum transmit power corresponding to the first wireless communication device is the maximum configured transmit power P CMAX of the first wireless communication device
  • the first wireless communication device passes the following Equations (26) through (28) adjust the maximum configured transmit power P CMAX of the first wireless communication device:
  • P CMAX_H MIN ⁇ 10log 10 ⁇ p EMAX,c ,P PowerClass ,P Regulatory ⁇ (28);
  • P Regulatory is a newly defined amount of power and P Regulatory is equal to a preset threshold.
  • P Regulatory may be directly set as a preset threshold, or P Regulatory may be replaced with the following formula:
  • the PCR is a preset device power backoff value, and the preset device power backoff value is set based on a preset threshold and a value of P PowerClass , and corresponds to different values in different scenarios.
  • EIRP_P Regulatory is the effective omnidirectional radiation power value of the preset device
  • G Ant is the antenna gain corresponding to the first wireless communication device.
  • the effective omnidirectional radiated power value of the preset device is set by the user or the system, and specifically, based on the first condition, the coexistence of the first wireless communication device and the second wireless communication device is effective for the first wireless communication device.
  • the setting of the radiant power limitation may also be set based on other factors, which is not limited herein.
  • the preset threshold is equal to the effective omnidirectional radiation power value of the preset device minus the antenna gain corresponding to the first wireless communication device.
  • the PSD Regulatory is a preset device power spectral density value
  • the BW is a bandwidth occupied by the first wireless communication device. It should be understood that the preset device power spectral density value is set by the user or the system, and specifically, based on the first condition, the coexistence of the first wireless communication device and the second wireless communication device to the power spectral density of the first wireless communication device The restrictions can be set based on other factors, which are not limited here.
  • the preset threshold is equal to the PSD Regulatory + 10 lgBW.
  • the EIRP_PSD Regulatory is the effective omnidirectional radiated power spectral density value of the preset device, the BW is the bandwidth occupied by the first wireless communication device, and the G Ant is the antenna gain corresponding to the first wireless communication device.
  • the effective omnidirectional power spectral density value of the preset device is set by the user or the system, and may be based on the effective omnidirectional radiation power spectrum of the coexistence device of the first wireless communication device and the second wireless communication device under the first condition.
  • the setting of the density may be set based on other factors, and is not limited herein.
  • the embodiments of the present invention provide various specific manners for adjusting the maximum configured transmit power of the first wireless communication device, thereby improving the flexibility of the solution.
  • Mode 3 define multiple new power quantities.
  • the maximum transmit power corresponding to the first wireless communication device is the maximum configured transmit power P CMAX of the first wireless communication device
  • the first wireless communication device passes the following Equations (33) through (35) adjust the maximum configured transmit power P CMAX of the first wireless communication device:
  • P CMAX_H MIN ⁇ 10log 10 ⁇ p EMAX,c ,P PowerClass ,P Regulatory ,PSD Regulatory +10lgBW ⁇ (35);
  • the P Regulatory is a preset threshold, and may be set according to a limitation that the coexistence of the first wireless communication device and the second wireless communication device limits the configured transmission power of the first wireless communication device, and the PSD Regulatory is pre-
  • the device power spectral density value may be set according to the limitation of the power spectral density of the first wireless communication device and the second wireless communication device according to the first condition, and may also be set based on other factors, This is not a limitation.
  • the first wireless communication device determines the maximum configured transmission power of the first wireless communication device by using the above formulas (33) to (35), and can simultaneously satisfy the first wireless communication device and the second wireless communication device when the first wireless communication device coexists with the second wireless communication device.
  • the effective omnidirectional radiation power of the first wireless communication device and the configuration transmission of the first wireless communication device may be simultaneously performed.
  • the power is limited.
  • the first wireless communication device adjusts the maximum configured transmit power P CMAX of the first wireless communication device by the following formulas (36) to (38):
  • P CMAX_H MIN ⁇ 10log 10 ⁇ p EMAX,c ,P PowerClass ,P Regulatory ,EIRP_P Regulatory -G Ant ⁇ (38);
  • P Regulatory, c is the preset threshold
  • EIRP_P Regulatory is the effective omnidirectional radiated power value of the preset device.
  • the effective omnidirectional radiated power of the first infinite communication device and the power spectral density of the first wireless communication device may be simultaneously defined.
  • the first wireless communication device adjusts the first wireless by the following formulas (39) to (41)
  • the maximum configured transmit power of the communication device P CMAX The maximum configured transmit power of the communication device P CMAX :
  • P CMAX_H MIN ⁇ 10log 10 ⁇ p EMAX,c ,P PowerClass ,EIRP_P Regulatory -G Ant ,PSD Regulatory +10lgBW ⁇ (41);
  • the PSD Regulatory is the preset device power spectral density value
  • the EIRP_P Regulatory is the preset device effective isotropic radiation power value.
  • the preset threshold is equal to the minimum value between PSD Regulatory +10lgBW and EIRP_P Regulatory -G Ant .
  • the three parameters of the effective omnidirectional radiation power of the first wireless communication device, the configured transmission power of the first wireless communication device, and the power spectral density of the first wireless communication device may be simultaneously defined, specifically, the first wireless communication device
  • the maximum configured transmit power P CMAX of the device is adjusted by the following equations (42) to (44):
  • P CMAX_H MIN ⁇ 10log 10 ⁇ p EMAX,c ,P PowerClass ,P Regulatory ,EIRP_P Regulatory -G Ant ,PSD Regulatory +10lgBW ⁇ (44);
  • the PSD Regulatory is the preset device power spectral density value
  • the EIRP_P Regulatory is the preset device effective isotropic radiation power value
  • the P Regulatory is the preset threshold.
  • the present application can simultaneously configure the transmit power of the device, the power spectral density of the device, the effective omnidirectional radiated power of the device, and the effective omnidirectional radiated power spectral density of the device.
  • Two or more parameters in the definition are defined, and the corresponding formulas are not listed here.
  • the embodiment of the invention defines a plurality of new power quantities, and can simultaneously define a plurality of parameters of the first wireless communication device when the first wireless communication device and the second wireless communication device coexist.
  • an embodiment of the wireless communication device in the embodiment of the present invention includes:
  • the first determining module 201 is configured to determine a distance between the wireless communication device and the second wireless communication device;
  • a second determining module 202 configured to determine an operating frequency of the second wireless communications device
  • the adjustment module 203 is configured to: when it is determined that the first condition is met and the maximum transmit power corresponding to the wireless communication device is greater than the preset threshold, adjust the maximum transmit power, so that the adjusted maximum transmit power is equal to or less than a preset threshold, and the preset threshold is Used to suppress interference of the wireless communication device with the receiving performance of the second wireless communication device under the first condition;
  • the first condition includes: the distance is less than or equal to the first threshold, and the difference between the operating frequency of the wireless communication device and the operating frequency of the second wireless communication device is less than or equal to the second threshold.
  • the adjustment module 203 adjusts the maximum transmit power corresponding to the first wireless communication device, so that The adjusted maximum transmit power is less than or equal to a preset threshold, where the first condition includes: a distance between the first wireless communication device and the second wireless communication device is less than or equal to a first threshold, and a work of the first wireless communication device The difference between the frequency and the operating frequency of the second wireless communication device is less than or equal to the second threshold.
  • the interference of the first wireless communication device to the receiving performance of the second wireless communication device can be suppressed, and the coexistence requirement of the first wireless communication device and the second wireless communication device under the first condition can be met. That is to say, the solution can suppress interference between devices and meet the coexistence requirements of multiple devices.
  • the maximum transmit power corresponding to the wireless communication device may be a wireless communication device.
  • the maximum configured transmit power of the carrier may be the maximum configured transmit power of the wireless communication device, or may be the maximum transmit power limited by other reasons for the wireless communication device.
  • the maximum transmit power corresponding to the wireless communication device is the maximum configured transmit power of the carrier, P EMAX,c .
  • another embodiment of the wireless communication device in the embodiment of the present invention includes:
  • a first determining module 301 configured to determine a distance between the wireless communications device and the second wireless communications device
  • a second determining module 302, configured to determine an operating frequency of the second wireless communications device
  • the adjusting module 303 is configured to: when it is determined that the first condition is met and the maximum transmit power corresponding to the wireless communication device is greater than the preset threshold, adjust the maximum transmit power, so that the adjusted maximum transmit power is equal to or less than a preset threshold, and the preset threshold is Used to suppress interference of the wireless communication device with the receiving performance of the second wireless communication device under the first condition;
  • the first condition includes: the distance is less than or equal to the first threshold, and the difference between the operating frequency of the wireless communication device and the operating frequency of the second wireless communication device is less than or equal to the second threshold.
  • the maximum transmit power corresponding to the wireless communication device includes: a maximum configured transmit power of a carrier of the wireless communication device.
  • the first condition may further include that the angle difference between the antenna direction of the wireless communication device and the antenna direction of the second wireless communication device is less than or equal to a third threshold, or other conditions, in the embodiment of the present invention. Not limited.
  • the adjustment module 303 may include:
  • the first adjusting unit 3031 is configured to adjust a maximum configured transmission power P CMAX,c of the target carrier of the wireless communication device by using the above formulas (1) to (3).
  • the second adjusting unit 3032 is configured to adjust a maximum configured transmission power P CMAX,c of the target carrier of the wireless communication device by using the above formulas (4) to (6).
  • the adjustment module 303 adjusts the maximum transmit power corresponding to the first wireless communication device, so that The adjusted maximum transmit power is less than or equal to a preset threshold, where the first condition includes: a distance between the first wireless communication device and the second wireless communication device is less than or equal to a first threshold, and a work of the first wireless communication device The difference between the frequency and the operating frequency of the second wireless communication device is less than or equal to the second threshold.
  • the interference of the first wireless communication device to the receiving performance of the second wireless communication device can be suppressed, and the coexistence requirement of the first wireless communication device and the second wireless communication device under the first condition can be met. That is to say, the solution can suppress interference between devices and meet the coexistence requirements of multiple devices.
  • the maximum transmit power corresponding to the wireless communication device includes the maximum configured transmit power of the carrier, and the embodiment of the present invention provides a plurality of manners for adjusting the maximum configured transmit power of the carrier, thereby improving the flexibility of the solution.
  • the maximum transmit power corresponding to the wireless communication device is the maximum configured transmit power P CMAX of the device .
  • another embodiment of a wireless communication device in an embodiment of the present invention includes:
  • a first determining module 401 configured to determine a distance between the wireless communication device and the second wireless communication device
  • a second determining module 402 configured to determine an operating frequency of the second wireless communication device
  • the adjusting module 403 is configured to: when it is determined that the first condition is met and the maximum transmit power corresponding to the wireless communication device is greater than the preset threshold, adjust the maximum transmit power, so that the adjusted maximum transmit power is equal to or less than a preset threshold, and the preset threshold is Used to suppress interference of the wireless communication device with the receiving performance of the second wireless communication device under the first condition;
  • the first condition includes: the distance is less than or equal to the first threshold, and the difference between the operating frequency of the wireless communication device and the operating frequency of the second wireless communication device is less than or equal to the second threshold.
  • the maximum transmit power corresponding to the wireless communication device includes: a maximum configured transmit power of the wireless communication device.
  • the first condition may further include that the angle difference between the antenna direction of the wireless communication device and the antenna direction of the second wireless communication device is less than or equal to a third threshold or other condition, which is specifically in the embodiment of the present invention. Not limited.
  • the adjustment module 403 may include:
  • the third adjusting unit 4031 is configured to adjust the maximum configured transmit power P CMAX of the wireless communication device by using the above formulas (23) to (25);
  • the fourth adjusting unit 4032 is configured to adjust the maximum configured transmission power P CMAX of the wireless communication device by using the above formulas (26) to (28);
  • the adjustment module 403 adjusts the maximum transmit power corresponding to the first wireless communication device, so that The adjusted maximum transmit power is less than or equal to a preset threshold, where the first condition includes: a distance between the first wireless communication device and the second wireless communication device is less than or equal to a first threshold, and a work of the first wireless communication device The difference between the frequency and the operating frequency of the second wireless communication device is less than or equal to the second threshold.
  • the interference of the first wireless communication device to the receiving performance of the second wireless communication device can be suppressed, and the coexistence requirement of the first wireless communication device and the second wireless communication device under the first condition can be met. That is to say, the solution can suppress interference between devices and meet the coexistence requirements of multiple devices.
  • the maximum transmit power corresponding to the wireless communication device in the embodiment of the present invention includes the maximum configured transmit power of the device, and the embodiment of the present invention provides various manners for adjusting the maximum configured transmit power of the wireless communication device, thereby improving the flexibility of the solution.
  • Wireless communication device 50 can include input device 510, output device 520, processor 530, and memory 540.
  • Memory 540 can include read only memory and random access memory and provides instructions and data to processor 530. A portion of the memory 540 may also include a non-volatile random access memory (Non-Volatile Random Access) Memory, NVRAM).
  • Non-Volatile Random Access Non-Volatile Random Access Memory
  • Memory 540 stores the following elements, executable modules or data structures, or subsets thereof, or their extended sets:
  • Operation instructions include various operation instructions for implementing various operations.
  • Operating system Includes a variety of system programs for implementing various basic services and handling hardware-based tasks.
  • the processor 530 is configured to:
  • the wireless communication device determines that the first condition is met, if it is determined that the maximum transmit power corresponding to the wireless communication device is greater than a preset threshold, the maximum transmit power is adjusted, so that the adjusted maximum transmit power is equal to or less than a preset threshold, and the preset threshold is used. Under the first condition, suppressing interference of the wireless communication device with the receiving performance of the second wireless communication device;
  • the first condition includes: the distance is less than or equal to the first threshold, and the difference between the operating frequency of the wireless communication device and the operating frequency of the second wireless communication device is less than or equal to the second threshold.
  • the processor 530 controls the operation of the wireless communication device 50, which may also be referred to as a Central Processing Unit (CPU).
  • Memory 540 can include read only memory and random access memory and provides instructions and data to processor 530. A portion of the memory 540 may also include an NVRAM.
  • the various components of the wireless communication device 50 are coupled together by a bus system 550.
  • the bus system 550 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 550 in the figure.
  • Processor 530 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 530 or an instruction in a form of software.
  • the processor 530 may be a general-purpose processor, a digital signal processing (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or Other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processing
  • ASIC application specific integrated circuit
  • FPGA field-programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 540, and the processor 530 reads the information in the memory 540 and performs the steps of the above method in combination with its hardware.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the display The mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • a computer readable storage medium A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)
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JP2019538143A JP2020507256A (ja) 2017-01-16 2017-01-16 送信電力決定方法および無線通信装置
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EP17891150.9A EP3554150B1 (en) 2017-01-16 2017-01-16 Method for determining transmit power, and wireless communication device
CN201780066946.XA CN109891953B (zh) 2017-01-16 2017-01-16 一种确定发射功率的方法及无线通讯设备
US16/512,418 US10785731B2 (en) 2017-01-16 2019-07-16 Transmit power determining method and wireless communications device

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CN109891953A (zh) 2019-06-14
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