WO2020087444A1 - Équipement utilisateur et son procédé de communication sans fil - Google Patents

Équipement utilisateur et son procédé de communication sans fil Download PDF

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Publication number
WO2020087444A1
WO2020087444A1 PCT/CN2018/113431 CN2018113431W WO2020087444A1 WO 2020087444 A1 WO2020087444 A1 WO 2020087444A1 CN 2018113431 W CN2018113431 W CN 2018113431W WO 2020087444 A1 WO2020087444 A1 WO 2020087444A1
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WO
WIPO (PCT)
Prior art keywords
rat
user equipment
transmission
power
maximum output
Prior art date
Application number
PCT/CN2018/113431
Other languages
English (en)
Inventor
Huei-Ming Lin
Zhenshan Zhao
Qianxi Lu
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Oppo Mobile Telecommunications Corp., Ltd. filed Critical Guangdong Oppo Mobile Telecommunications Corp., Ltd.
Priority to PCT/CN2018/113431 priority Critical patent/WO2020087444A1/fr
Priority to CN201880097893.2A priority patent/CN112740787B/zh
Publication of WO2020087444A1 publication Critical patent/WO2020087444A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H04W52/383—TPC being performed in particular situations power control in peer-to-peer links
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/28—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
    • H04W52/281—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 taking into account user or data type priority
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—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
    • H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—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

Definitions

  • the present disclosure relates to the field of communication systems, and more particularly, to a user equipment and a method of wireless communication of same.
  • V2X direct vehicle-to-everything
  • 3GPP 3rd generation partnership project
  • a next generation of V2X technology based on a recently developed 5th generation –new radio (5G-NR) system, namely NR-V2X needs to support additional advanced intelligent transportation system (ITS) applications and services compared to existing long term evolution V2X (LTE-V2X) based technologies.
  • ITS advanced intelligent transportation system
  • LTE-V2X long term evolution V2X
  • Tx total available transmission
  • P CMAX UE configured maximum output power level
  • An object of the present disclosure is to propose a user equipment and a method of wireless communication of same capable of providing that vehicle-to-everything (V2X) transmission on a higher priority radio access technology (RAT) , such as long term evolution V2X (LTE-V2X) or new radio V2X (NR-V2X) is protected, and/or additional transmission (Tx) power can be allocated to a higher priority RAT whenever available.
  • RAT radio access technology
  • a user equipment for wireless communication includes a memory, a transceiver, and a processor coupled to the memory and the transceiver.
  • the processor is configured to allocate and reserve a transmission power reservation level to guarantee a minimum level of X%of a total configured maximum output power of the user equipment per a first sidelink (SL) vehicle-to-everything (V2X) transmission on a first radio access technology (RAT) .
  • the processor is configured to allocate a transmission power level up to a maximum level of (100-X) %of the total configured maximum output power of the user equipment per a second SL V2X transmission on a second RAT.
  • X is greater than 0 and less than 100.
  • the transmission power reservation level for the first SL V2X transmission is pre-defined, pre-configured, or configured by a network base station.
  • a transmission power of the user equipment is X %of the total configured maximum output power of the user equipment.
  • a combined transmission power of the user equipment is equal to 100%of the total configured maximum output power of the user equipment.
  • the transmission power of the user equipment is (100-X) %of the total configured maximum output power of the user equipment.
  • the processor when a transmission power of the user equipment is less than (100-X) %of the total configured maximum output power of the user equipment during the second SL V2X transmission on the second RAT, the processor is configured to allocate the transmission power of the user equipment greater than X %of the total configured maximum output power of the user equipment during the first SL V2X transmission on the first RAT.
  • a combined transmission power of the user equipment is equal to 100%of the total configured maximum output power of the user equipment.
  • the first RAT and the second RAT there is no coordination of V2X operation on the first RAT and the second RAT, or information on SL scheduling, transmission timing, and/or transmission power allocation or usage of one of the first RAT and the second RAT is not shared with the other of the first RAT and the second RAT.
  • the processor is configured to choose to perform an increasing of a transmission power of the user equipment on the first RAT above the transmission power reservation level.
  • the processor reduces at least one of transmission powers of the user equipment on the first RAT and the second RAT, such that the combined transmission power of the user equipment is adjusted to less than or equal to 100%of the total configured maximum output power of the user equipment.
  • the processor reduces the transmission power of the user equipment on one of the first RAT and the second RAT having a priority level less than a priority level of the other of the first RAT and the second RAT.
  • the processor reduces the transmission powers of the user equipment on the first RAT and the second RAT equally.
  • the first RAT and the second RAT are different.
  • one of the first RAT and the second RAT is long term evolution V2X (LTE-V2X)
  • the other of the first RAT and the second RAT is new radio V2X (NR-V2X) .
  • a method of wireless communication of a user equipment includes allocating and reserving a transmission power reservation level to guarantee a minimum level of X%of a total configured maximum output power of the user equipment per a first sidelink (SL) vehicle-to-everything (V2X) transmission on a first radio access technology (RAT) .
  • the method includes allocating a transmission power level up to a maximum level of (100-X) %of the total configured maximum output power of the user equipment per a second SL V2X transmission on a second RAT.
  • X is greater than 0 and less than 100.
  • the transmission power reservation level for the first SL V2X transmission is pre-defined, pre-configured, or configured by a network base station.
  • a transmission power of the user equipment is X %of the total configured maximum output power of the user equipment.
  • a combined transmission power of the user equipment is equal to 100%of the total configured maximum output power of the user equipment.
  • the transmission power of the user equipment is (100-X) %of the total configured maximum output power of the user equipment.
  • the method when a transmission power of the user equipment is less than (100-X) %of the total configured maximum output power of the user equipment during the second SL V2X transmission on the second RAT, the method further includes allocating the transmission power of the user equipment greater than X %of the total configured maximum output power of the user equipment during the first SL V2X transmission on the first RAT.
  • a combined transmission power of the user equipment is equal to 100%of the total configured maximum output power of the user equipment.
  • the method further includes choosing to perform an increasing of a transmission power of the user equipment on the first RAT above the transmission power reservation level.
  • the method further includes reducing at least one of transmission powers of the user equipment on the first RAT and the second RAT, such that the combined transmission power of the user equipment is adjusted to less than or equal to 100%of the total configured maximum output power of the user equipment.
  • the method further includes reducing the transmission power of the user equipment on one of the first RAT and the second RAT having a priority level less than a priority level of the other of the first RAT and the second RAT.
  • the method further includes reducing the transmission powers of the user equipment on the first RAT and the second RAT equally.
  • the first RAT and the second RAT are different.
  • one of the first RAT and the second RAT is long term evolution V2X (LTE-V2X)
  • the other of the first RAT and the second RAT is new radio V2X (NR-V2X) .
  • a non-transitory machine-readable storage medium has stored thereon instructions that, when executed by a computer, cause the computer to perform the above method.
  • a terminal device includes a processor and a memory configured to store a computer program.
  • the processor is configured to execute the computer program stored in the memory to perform the above method.
  • the user equipment and the method of wireless communication of same aim to ensure that a minimum guaranteed power is available for transmitting sidelink (SL) channels and/or signals on one of two RATs and at the same time being able to allocate more transmission (Tx) power if there are no overlapping transmissions or there is remaining power not used by the other RAT.
  • Tx transmission
  • the embodiment of the present disclosure has at least one of following benefits.
  • Ensuring SL transmissions on a high priority RAT can be allocated with more Tx power when there are no overlapping transmissions or there is remaining power not used by a lower priority RAT.
  • FIG. 1 is a block diagram of a user equipment for wireless communication according to an embodiment of the present disclosure.
  • FIG. 2 is a flowchart illustrating a method of wireless communication of a user equipment according to an embodiment of the present disclosure.
  • FIG. 3 is a schematic diagram of exemplary illustration of a user equipment (UE) power sharing scheme base on allocating a guaranteed and reserved power for sidelink (SL) transmissions in a higher priority radio access technology (RAT) according to an embodiment of the present disclosure.
  • UE user equipment
  • RAT radio access technology
  • FIG. 4 is a schematic diagram of exemplary illustration of coordinated power sharing between P RAT_1 and P RAT_2 , with statically or quasi-statically allocated reserved transmission (Tx) power according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of exemplary illustration of uncoordinated power sharing with opportunist power boosting and power adjustment between P RAT_1 and P RAT_2 according to an embodiment of the present disclosure.
  • FIG. 6 is a block diagram of a system for wireless communication according to an embodiment of the present disclosure.
  • FIG. 1 illustrates that, in some embodiments, a user equipment (UE) 10 for wireless communication may include a processor 11, a memory 12 and a transceiver 13.
  • the processor 11 may be configured to implement proposed functions, procedures and/or methods described in this description. Layers of radio interface protocol may be implemented in the processor 11.
  • the memory 12 is operatively coupled with the processor 11 and stores a variety of information to operate the processor 11.
  • the transceiver 13 is operatively coupled with the processor 11, and transmits and/or receives a radio signal.
  • the processor 11 may include application-specific integrated circuit (ASIC) , other chipset, logic circuit and/or data processing device.
  • the memory 12 may include read-only memory (ROM) , random access memory (RAM) , flash memory, memory card, storage medium and/or other storage device.
  • the transceiver 13 may include baseband circuitry to process radio frequency signals.
  • modules e.g., procedures, functions, and so on
  • the modules can be stored in the memory 12 and executed by the processor 11.
  • the memory 12 can be implemented within the processor 11 or external to the processor 11 in which case those can be communicatively coupled to the processor 11 via various means as is known in the art.
  • the communication between UEs relates to vehicle-to-everything (V2X) communication including vehicle-to-vehicle (V2V) , vehicle-to-pedestrian (V2P) , and vehicle-to-infrastructure/network (V2I/N) according to a sidelink technology developed under 3rd generation partnership project (3GPP) new radio (NR) Release 16 and beyond.
  • UEs are communicated with each other directly via a sidelink interface such as a PC5 interface.
  • the processor 11 is configured to allocate and reserve a transmission power reservation level to guarantee a minimum level of X%of a total configured maximum output power of the user equipment 10 per a first sidelink (SL) vehicle-to-everything (V2X) transmission on a first radio access technology (RAT) .
  • the processor 11 is configured to allocate a transmission power level up to a maximum level of (100-X) %of the total configured maximum output power of the user equipment 10 per a second SL V2X transmission on a second RAT.
  • X is greater than 0 and less than 100.
  • FIG. 2 illustrates a method 400 of wireless communication of the UE 10 according to an embodiment of the present disclosure.
  • the method 400 includes: at block 402, allocating and reserving a transmission power reservation level to guarantee a minimum level of X%of a total configured maximum output power of the user equipment 10 per a first sidelink (SL) vehicle-to-everything (V2X) transmission on a first radio access technology (RAT) , and at block 404, allocating a transmission power level up to a maximum level of (100-X) %of the total configured maximum output power of the user equipment 10 per a second SL V2X transmission on a second RAT, wherein X is greater than 0 and less than 100.
  • SL sidelink
  • V2X vehicle-to-everything
  • RAT radio access technology
  • the UE 10 and the method 400 of vehicle-to-everything (V2X) communication of same provide that vehicle-to-everything (V2X) transmission on a higher priority radio access technology (RAT) , such as long term evolution V2X (LTE-V2X) or new radio V2X (NR-V2X) is protected, and/or additional transmission (Tx) power can be allocated to a higher priority RAT whenever available.
  • RAT radio access technology
  • a proposed transmission (Tx) power reservation scheme for the UE 10 performing V2X operation simultaneously on two different radio access technologies (RATs) namely, LTE-V2X and NR-V2X, transmitting sidelink (SL) channels and/or signals over plurality of carriers to one or more receiving UEs (Rx-UEs) configured to receive signals, UE’s total configured maximum output power (P CMAX ) is statically or quasi-statically shared between the LTE-V2X and NR-V2X operations based on a guaranteed reserved power allocation to one of the RATs.
  • RATs radio access technologies
  • UE total configured maximum output power
  • P CMAX total configured maximum output power
  • the UE 10 is network-configured, pre-configured, or programmed with a pre-defined reserved transmission (Tx) power level (e.g.
  • the reserved level is a minimum guaranteed UE Tx power allocation for all SL transmissions at any time for the RAT, regardless of overlapping or non-overlapping in time of SL transmission with another RAT (such as RAT_2 in FIG. 3) . That is, whenever it is needed, the RAT_1 is guaranteed to be able to use up to the reserved X%of P CMAX .
  • the UE 10 such as a transmitting UE (Tx-UE) configured to transmitting signals, allowed to allocate less Tx power for RAT_1 if a SL transmission requires less than X%.
  • the Tx-UE can still only allocate up to (100–X) %of P CMAX for SL transmissions in RAT_2 at any given point in time.
  • the total combined Tx power during the overlapping portion of the two SL transmissions would be only 70%of P CMAX .
  • Tx power sharing based on a guaranteed reserved power allocation scheme 100 is exemplary illustrated for two RATs, namely RAT_1 and RAT_2.
  • a Tx-UE has been allocated with a network configured, pre-configured or pre-defined reserved Tx power of X%of UE’s total configured output power and SL transmissions on RAT_1 101 overlaps with a SL transmission of RAT_2 102. Since X%of P CMAX has been allocated and reserved for SL transmissions on RAT_1 101, SL transmissions on RAT_2 102 can only get up to max (100-X) %of P CMAX .
  • the Tx-UE can allocate at least X%of P CMAX 106 for the SL transmission on RAT_1 101.
  • a second non-overlapping time period 105 for remaining portion of SL transmission on RAT_2 the UE Tx power would be just (100-X) %of P CMAX 108.
  • the Tx-UE can base on this information allocates more Tx power for a SL transmission on the RAT with pre-defined or (pre-) configured reserved power. However, it is not allowed for the Tx-UE to allocate more Tx output power than (100–X) %for SL transmissions on the RAT without a pre-defined or (pre-) configured reserved power. This is to ensure the minimum guaranteed amount of UE Tx power can always be provided to the RAT allocated with a reserved power.
  • the Tx-UE may allocate an additional up to 40%of P CMAX to a SL transmission on a RAT that has been allocated with 60%of P CMAX (that is a reserved power) if the Tx-UE knows in advanced that it will not overlap in time with any SL transmission on the other RAT. But the Tx-UE can only allocate up to 40%of P CMAX for SL transmission on a RAT without a pre-defined or (pre-) configured reserved power even though there is no overlapping transmission with the RAT that has been allocated with 60%of P CMAX (that is the reserved power) .
  • a coordinated power sharing between UE transmit power for RAT_1 (P RAT-1 ) and RAT_2 (P RAT-2 ) in a reserved power allocation scheme 200 is exemplary illustrated, where a reserved power level of 60%of P CMAX 201 is pre-defined or (pre-) configured for SL transmissions on RAT_1.
  • the Tx-UE can allocate 10%more power of P CMAX 205 in additional to the 60%of P CMAX (that is a reserved power 204 for P RAT-1 ) , i.e., total combined level of 70%of P CMAX 206, when the SL transmission on RAT_2 requires only 30%of P CMAX 203 for P RAT-2 .
  • a maximum level of 40%of P CMAX 202 for P RAT-2 is illustrated in FIG. 4.
  • the Tx-UE can either always allocate its Tx power according to and within the pre-defined or (pre-) configured reserved level or opportunist boost and/or allocate more Tx power than the pre-defined or (pre-) configured reserved level.
  • the final Tx power for RAT_1 and RAT_2 (e.g., P RAT-1 and P RAT-2 ) can be adjusted based on a fixed RAT priority or an equal reduction approach.
  • an uncoordinated allocation of UE Tx power for RAT_1 (P RAT-1 ) and RAT_2 (P RAT-2 ) with power boost on the RAT with pre-defined or (pre-) configured reserved level and final Tx power adjustment is exemplary illustrated in a scheme 300, where a reserved power level of 60%of P CMAX 301 is pre-defined or (pre-) configured for SL transmissions on RAT_1. As the result of pre-defined or (pre-) configured reserved power for RAT_1, the maximum Tx power can be allocated for P RAT-2 is 40%of P CMAX .
  • the Tx-UE may choose to perform an increasing (such as opportunist boosting) of Tx power on the RAT with a pre-defined or (pre-) configured reserved level (i.e. RAT_1) .
  • the amount of opportunist boosting is 20%of P CMAX 304 in addition to the reserved level of 60%of P CMAX 301.
  • the total initial power allocated for SL transmission on RAT_1 302 is 80%of P CMAX .
  • the initial combined Tx power is 110%of P CMAX , which exceeds the upper bound of UE requirement. In this case, further adjustment of UE Tx power is needed.
  • a first adjustment scheme 310 which is a fixed RAT priority-based approach, where RAT_1 has higher priority.
  • P RAT-1 remains same as before at 80%of P CMAX 311 and P RAT-2 is adjusted and reduced to 20%of P CMAX 312, so that the total combined Tx power does not exceed 100%of P CMAX .
  • a second adjustment scheme 320 which is also a fixed RAT priority-based approach, where RAT_2 has higher priority.
  • P RAT-2 remains same as before at 30%of P CMAX 322 and P RAT-1 is adjusted and reduced to 70%of P CMAX 321, so that the total combined Tx power does not exceed 100%of P CMAX .
  • a third adjustment scheme 330 which is an equal reduction-based approach, where P RAT-1 and P RAT-2 are equally reduced by same amount so that the total combined Tx power does not exceed 100%of P CMAX .
  • P RAT-1 is reduced from 80%to 75%of P CMAX 331 and P RAT-2 is reduced from 30%to 25%of P CMAX 332.
  • FIG. 6 is a block diagram of an example system 700 for wireless communication according to an embodiment of the present disclosure. Embodiments described herein may be implemented into the system using any suitably configured hardware and/or software.
  • FIG. 6 illustrates the system 700 including a radio frequency (RF) circuitry 710, a baseband circuitry 720, an application circuitry 730, a memory/storage 740, a display 750, a camera 760, a sensor 770, and an input/output (I/O) interface 780, coupled with each other at least as illustrated.
  • RF radio frequency
  • the application circuitry 730 may include a circuitry such as, but not limited to, one or more single-core or multi-core processors.
  • the processors may include any combination of general-purpose processors and dedicated processors, such as graphics processors, application processors.
  • the processors may be coupled with the memory/storage and configured to execute instructions stored in the memory/storage to enable various applications and/or operating systems running on the system.
  • the baseband circuitry 720 may include circuitry such as, but not limited to, one or more single-core or multi-core processors.
  • the processors may include a baseband processor.
  • the baseband circuitry may handle various radio control functions that enables communication with one or more radio networks via the RF circuitry.
  • the radio control functions may include, but are not limited to, signal modulation, encoding, decoding, radio frequency shifting, etc.
  • the baseband circuitry may provide for communication compatible with one or more radio technologies.
  • the baseband circuitry may support communication with an evolved universal terrestrial radio access network (EUTRAN) and/or other wireless metropolitan area networks (WMAN) , a wireless local area network (WLAN) , a wireless personal area network (WPAN) .
  • EUTRAN evolved universal terrestrial radio access network
  • WMAN wireless metropolitan area networks
  • WLAN wireless local area network
  • WPAN wireless personal area network
  • Embodiments in which the baseband circuitry is configured to support radio communications of more than one wireless protocol may be referred to as
  • the baseband circuitry 720 may include circuitry to operate with signals that are not strictly considered as being in a baseband frequency.
  • baseband circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency.
  • the RF circuitry 710 may enable communication with wireless networks using modulated electromagnetic radiation through a non-solid medium.
  • the RF circuitry may include switches, filters, amplifiers, etc. to facilitate the communication with the wireless network.
  • the RF circuitry 710 may include circuitry to operate with signals that are not strictly considered as being in a radio frequency.
  • RF circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency.
  • the transmitter circuitry, control circuitry, or receiver circuitry discussed above with respect to the user equipment, eNB, or gNB may be embodied in whole or in part in one or more of the RF circuitry, the baseband circuitry, and/or the application circuitry.
  • “circuitry” may refer to, be part of, or include an Application Specific Integrated Circuit (ASIC) , an electronic circuit, a processor (shared, dedicated, or group) , and/or a memory (shared, dedicated, or group) that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable hardware components that provide the described functionality.
  • ASIC Application Specific Integrated Circuit
  • the electronic device circuitry may be implemented in, or functions associated with the circuitry may be implemented by, one or more software or firmware modules.
  • some or all of the constituent components of the baseband circuitry, the application circuitry, and/or the memory/storage may be implemented together on a system on a chip (SOC) .
  • SOC system on a chip
  • the memory/storage 740 may be used to load and store data and/or instructions, for example, for system.
  • the memory/storage for one embodiment may include any combination of suitable volatile memory, such as dynamic random access memory (DRAM) ) , and/or non-volatile memory, such as flash memory.
  • DRAM dynamic random access memory
  • flash memory non-volatile memory
  • the I/O interface 780 may include one or more user interfaces designed to enable user interaction with the system and/or peripheral component interfaces designed to enable peripheral component interaction with the system.
  • User interfaces may include, but are not limited to a physical keyboard or keypad, a touchpad, a speaker, a microphone, etc.
  • Peripheral component interfaces may include, but are not limited to, a non-volatile memory port, a universal serial bus (USB) port, an audio jack, and a power supply interface.
  • USB universal serial bus
  • the sensor 770 may include one or more sensing devices to determine environmental conditions and/or location information related to the system.
  • the sensors may include, but are not limited to, a gyro sensor, an accelerometer, a proximity sensor, an ambient light sensor, and a positioning unit.
  • the positioning unit may also be part of, or interact with, the baseband circuitry and/or RF circuitry to communicate with components of a positioning network, e.g., a global positioning system (GPS) satellite.
  • GPS global positioning system
  • the display 750 may include a display, such as a liquid crystal display and a touch screen display.
  • the system 700 may be a mobile computing device such as, but not limited to, a laptop computing device, a tablet computing device, a netbook, an ultrabook, a smartphone, etc.
  • system may have more or less components, and/or different architectures.
  • methods described herein may be implemented as a computer program.
  • the computer program may be stored on a storage medium, such as a non-transitory storage medium.
  • the user equipment and the method of wireless communication of same aim to ensure that a minimum guaranteed power is available for transmitting sidelink (SL) channels and/or signals on one of two RATs and at the same time being able to allocate more transmission (Tx) power if there are no overlapping transmissions or there is remaining power not used by the other RAT.
  • Tx transmission
  • the embodiment of the present disclosure is a combination of techniques/processes that can be adopted in 3GPP specification to create an end product.
  • the embodiment of the present disclosure has at least one of following benefits.
  • Ensuring SL transmissions on a high priority RAT can be allocated with more Tx power when there are no overlapping transmissions or there is remaining power not used by a lower priority RAT.
  • the units as separating components for explanation are or are not physically separated.
  • the units for display are or are not physical units, that is, located in one place or distributed on a plurality of network units. Some or all of the units are used according to the purposes of the embodiments.
  • each of the functional units in each of the embodiments can be integrated in one processing unit, physically independent, or integrated in one processing unit with two or more than two units.
  • the software function unit is realized and used and sold as a product, it can be stored in a readable storage medium in a computer.
  • the technical plan proposed by the present disclosure can be essentially or partially realized as the form of a software product.
  • one part of the technical plan beneficial to the conventional technology can be realized as the form of a software product.
  • the software product in the computer is stored in a storage medium, including a plurality of commands for a computational device (such as a personal computer, a server, or a network device) to run all or some of the steps disclosed by the embodiments of the present disclosure.
  • the storage medium includes a USB disk, a mobile hard disk, a read-only memory (ROM) , a random access memory (RAM) , a floppy disk, or other kinds of media capable of storing program codes.

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Abstract

La présente invention concerne un équipement utilisateur et son procédé de communication sans fil. Le procédé comprend les étapes consistant à attribuer et réserver un niveau de réservation de puissance de transmission pour garantir un niveau minimum de X % d'une puissance de sortie maximale configurée totale de l'équipement utilisateur pour une première transmission véhicule à tout (V2X) de liaison latérale (SL) sur une première technologie d'accès radio (RAT) et à attribuer un niveau de puissance de transmission jusqu'à un niveau maximal de (100-X) % de la puissance de sortie maximale configurée totale de l'équipement utilisateur pour une seconde transmission V2X SL sur une seconde RAT, X étant supérieur à 0 et inférieur à 100.
PCT/CN2018/113431 2018-11-01 2018-11-01 Équipement utilisateur et son procédé de communication sans fil WO2020087444A1 (fr)

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