WO2019148414A1 - Équipement d'utilisateur et son procédé de communication sans fil - Google Patents

Équipement d'utilisateur et son procédé de communication sans fil Download PDF

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Publication number
WO2019148414A1
WO2019148414A1 PCT/CN2018/074922 CN2018074922W WO2019148414A1 WO 2019148414 A1 WO2019148414 A1 WO 2019148414A1 CN 2018074922 W CN2018074922 W CN 2018074922W WO 2019148414 A1 WO2019148414 A1 WO 2019148414A1
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WO
WIPO (PCT)
Prior art keywords
user equipment
power setting
reference signal
setting indication
feedback
Prior art date
Application number
PCT/CN2018/074922
Other languages
English (en)
Inventor
Huei-Ming Lin
Hai Tang
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/CN2018/074922 priority Critical patent/WO2019148414A1/fr
Priority to CN201880080728.6A priority patent/CN111492697B/zh
Publication of WO2019148414A1 publication Critical patent/WO2019148414A1/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
    • H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure
    • H04W52/58—Format of the TPC bits
    • 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

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 the same.
  • LTE long term evolution
  • UE user equipment
  • V2X vehicle-to-everything
  • V2V vehicle-to-vehicle
  • V2P vehicle-to-pedestrian
  • V2I/N vehicle-to-infrastructure/network
  • the UEs transmit at the maximum allowable power regardless of channel type such as control channel or data channel, signal type such as synchronization signals or reference signals, operating condition such as in-network coverage or out-of-network coverage, and communication type such as broadcast, groupcast or unicast to achieve a maximum signal coverage and communication range.
  • channel type such as control channel or data channel
  • signal type such as synchronization signals or reference signals
  • operating condition such as in-network coverage or out-of-network coverage
  • communication type such as broadcast, groupcast or unicast to achieve a maximum signal coverage and communication range.
  • An object of the present disclosure is to propose a user equipment (UE) and a method of wireless communication of the same capable of controlling and setting appropriate power setting indication for a transmitting UE for wireless communication directly over a sidelink interface.
  • UE user equipment
  • a user equipment for wireless communication includes a memory and a processor coupled to the memory.
  • the processor is configured to perform a closed loop communication over a sidelink interface to a second user equipment, receive, from the second user equipment, a plurality of power setting indications having different bit lengths, and perform the power setting indications having the different bit lengths via the closed loop communication over the sidelink interface.
  • the bit lengths of the power setting indications are represented by at least two of one bit to provide two power setting indication values, two bits to provide four power setting indication values, and three bits to provide eight power setting indication values.
  • the processor is further configured to transmit at least one data transport block including at least one reference signal to the second user equipment.
  • the at least one data transport block includes at least one of a physical sidelink control channel (PSCCH) , a physical sidelink shared channel (PSSCH) , a physical sidelink broadcast channel (PSBCH) , a tracking reference signal, and a sidelink synchronization signal (SLSS)
  • the at least one reference signal is at least one demodulation reference signal (DMRS) for at least one of the PSCCH, the PSSCH, the PSBCH, the tracking reference signal, and the SLSS.
  • DMRS demodulation reference signal
  • the processor is further configured to receive at least one second data transport block including at least one second reference signal from the second user equipment, derive a second power setting indication according to the at least one second reference signal, and transmit, to the second user equipment, the second power setting indication.
  • the processor is configured to periodically receive the at least one second reference signal and feed back the second power setting indication to the second user equipment.
  • the user equipment further includes at least one feedback channel
  • the processor is configured to transmit, to the second user equipment, the second power setting indication via the at least one feedback channel.
  • a number of the at least one feedback channel is at least two, a periodicity of the at least two feedback channels is every 5, 10, 20, 50, or 100ms depending on carrier tone spacing.
  • a size of the at least one feedback channel is one slot in a time domain and at least one physical resource block in a frequency domain.
  • the at least one feedback channel includes a guard period (GP) for transmission/reception switching, an orthogonal frequency division multiplexing (OFDM) symbol for receiving automatic gain control (AGC) , and a feedback data region including at least one of a DMRS resource element and an information resource element.
  • GP guard period
  • OFDM orthogonal frequency division multiplexing
  • AGC automatic gain control
  • the user equipment further includes at least one sidelink control information
  • the processor is configured to encode the second power setting indication in the at least one sidelink control information in a PSCCH.
  • the processor is configured to schedule at least one sidelink control information at a beginning of a transmission time interval (TTI) and assign a feedback region in an end of the TTI.
  • TTI transmission time interval
  • the feedback region includes a guard period (GP) of symbols for transmission/reception switching, a calculation of RSRP level, the power setting indication, an OFDM symbol for receiving AGC, and a feedback data region including at least one of a DMRS resource element and an information resource element.
  • GP guard period
  • the processor is configured to receive, from the second user equipment, the power setting indication via an upper layer medium access control control element (MAC-CE) carried in a PSSCH.
  • MAC-CE medium access control control element
  • a user equipment for wireless communication includes a memory and a processor coupled to the memory.
  • the processor is configured to perform a closed loop communication over a sidelink interface to a second user equipment and transmit a plurality of power setting indications having different bit lengths to a second user equipment via the closed loop communication over the sidelink interface.
  • bit lengths of the power setting indications are represented by at least two of one bit to provide two power setting indication values, two bits to provide four power setting indication values, and three bits to provide eight power setting indication values.
  • the processor is further configured to receive at least one data transport block including at least one reference signal from the second user equipment and derive the power setting indication according to the at least one reference signal.
  • the at least one data transport block includes at least one of a physical sidelink control channel (PSCCH) , a physical sidelink shared channel (PSSCH) , a physical sidelink broadcast channel (PSBCH) , a tracking reference signal, and a sidelink synchronization signal (SLSS)
  • the at least one reference signal is at least one demodulation reference signal (DMRS) for at least one of the PSCCH, the PSSCH, the PSBCH, the tracking reference signal, and the SLSS.
  • DMRS demodulation reference signal
  • the processor is further configured to transmit at least one second data transport block including at least one second reference signal to the second user equipment, and receive, from the second user equipment, a second power setting indication.
  • the user equipment further includes at least one feedback channel
  • the processor is configured to transmit, to the second user equipment, the power setting indication via the at least one feedback channel.
  • a number of the at least one feedback channel is at least two, a periodicity of the at least two feedback channels is every 5, 10, 20, 50, or 100ms depending on carrier tone spacing.
  • a size of the at least one feedback channel is one slot in a time domain and at least one physical resource block in a frequency domain.
  • the at least one feedback channel includes a guard period (GP) for transmission/reception switching, an orthogonal frequency division multiplexing (OFDM) symbol for receiving automatic gain control (AGC) , and a feedback data region including at least one of a DMRS resource element and an information resource element.
  • GP guard period
  • OFDM orthogonal frequency division multiplexing
  • AGC automatic gain control
  • the user equipment further includes at least one sidelink control information
  • the processor is configured to encode the power setting indication in the at least one sidelink control information in a PSCCH.
  • the processor is configured to schedule at least one sidelink control information at a beginning of a transmission time interval (TTI) and assign a feedback region in an end of the TTI.
  • TTI transmission time interval
  • the feedback region includes a guard period (GP) of symbols for transmission/reception switching, a calculation of RSRP level, the power setting indication, an OFDM symbol for receiving AGC, and a feedback data region including at least one of a DMRS resource element and an information resource element.
  • GP guard period
  • the processor is configured to transmit the power setting indication to the second user equipment via an upper layer medium access control control element (MAC-CE) carried in a PSSCH.
  • MAC-CE medium access control control element
  • a method of wireless communication of a user equipment includes performing a closed loop communication over a sidelink interface to a second user equipment, receiving, from the second user equipment, a plurality of power setting indications having different bit lengths, and performing the power setting indications having the different bit lengths via the closed loop communication over the sidelink interface.
  • bit lengths of the power setting indications are represented by at least two of one bit to provide two power setting indication values, two bits to provide four power setting indication values, and three bits to provide eight power setting indication values.
  • the method further includes transmitting at least one data transport block including at least one reference signal to the second user equipment.
  • the at least one data transport block includes at least one of a physical sidelink control channel (PSCCH) , a physical sidelink shared channel (PSSCH) , a physical sidelink broadcast channel (PSBCH) , a tracking reference signal, and a sidelink synchronization signal (SLSS)
  • the at least one reference signal is at least one demodulation reference signal (DMRS) for at least one of the PSCCH, the PSSCH, the PSBCH, the tracking reference signal, and the SLSS.
  • DMRS demodulation reference signal
  • the method further includes receiving at least one second data transport block including at least one second reference signal from the second user equipment, deriving a second power setting indication according to the at least one second reference signal, and transmitting, to the second user equipment, the second power setting indication.
  • the method further includes periodically receiving the at least one second reference signal and feeding back the second power setting indication to the second user equipment.
  • the method further includes transmitting, to the second user equipment, the second power setting indication via at least one feedback channel.
  • a number of the at least one feedback channel is at least two, a periodicity of the at least two feedback channels is every 5, 10, 20, 50, or 100ms depending on carrier tone spacing.
  • a size of the at least one feedback channel is one slot in a time domain and at least one physical resource block in a frequency domain.
  • the at least one feedback channel includes a guard period (GP) for transmission/reception switching, an orthogonal frequency division multiplexing (OFDM) symbol for receiving automatic gain control (AGC) , and a feedback data region including at least one of a DMRS resource element and an information resource element.
  • GP guard period
  • OFDM orthogonal frequency division multiplexing
  • AGC automatic gain control
  • the method further includes encoding the second power setting indication in at least one sidelink control information in a PSCCH.
  • the method further includes scheduling at least one sidelink control information at a beginning of a transmission time interval (TTI) and assigning a feedback region in an end of the TTI.
  • TTI transmission time interval
  • the feedback region includes a guard period (GP) of symbols for transmission/reception switching, a calculation of RSRP level, the power setting indication, an OFDM symbol for receiving AGC, and a feedback data region including at least one of a DMRS resource element and an information resource element.
  • GP guard period
  • the method further includes receiving, from the second user equipment, the power setting indication via an upper layer medium access control control element (MAC-CE) carried in a PSSCH.
  • MAC-CE medium access control control element
  • a method of wireless communication of a user equipment includes performing a closed loop communication over a sidelink interface to a second user equipment and transmitting a plurality of power setting indications having different bit lengths to the second user equipment via the closed loop communication over the sidelink interface.
  • bit lengths of the power setting indications are represented by at least two of one bit to provide two power setting indication values, two bits to provide four power setting indication values, and three bits to provide eight power setting indication values.
  • the method further includes receiving at least one data transport block including at least one reference signal from the second user equipment and deriving the power setting indication according to the at least one reference signal.
  • the at least one data transport block includes at least one of a physical sidelink control channel (PSCCH) , a physical sidelink shared channel (PSSCH) , a physical sidelink broadcast channel (PSBCH) , a tracking reference signal, and a sidelink synchronization signal (SLSS)
  • the at least one reference signal is at least one demodulation reference signal (DMRS) for at least one of the PSCCH, the PSSCH, the PSBCH, the tracking reference signal, and the SLSS.
  • DMRS demodulation reference signal
  • the method further includes transmitting at least one second data transport block including at least one second reference signal to the second user equipment and receiving, from the second user equipment, a second power setting indication.
  • the method further includes transmitting, to the second user equipment, the power setting indication via the at least one feedback channel.
  • a number of the at least one feedback channel is at least two, a periodicity of the at least two feedback channels is every 5, 10, 20, 50, or 100ms depending on carrier tone spacing.
  • a size of the at least one feedback channel is one slot in a time domain and at least one physical resource block in a frequency domain.
  • the at least one feedback channel includes a guard period (GP) for transmission/reception switching, an orthogonal frequency division multiplexing (OFDM) symbol for receiving automatic gain control (AGC) , and a feedback data region including at least one of a DMRS resource element and an information resource element.
  • GP guard period
  • OFDM orthogonal frequency division multiplexing
  • AGC automatic gain control
  • the method further includes encoding the power setting indication in the at least one sidelink control information in a PSCCH.
  • the method further includes scheduling at least one sidelink control information at a beginning of a transmission time interval (TTI) and assigning a feedback region in an end of the TTI.
  • TTI transmission time interval
  • the feedback region includes a guard period (GP) of symbols for transmission/reception switching, a calculation of RSRP level, the power setting indication, an OFDM symbol for receiving AGC, and a feedback data region including at least one of a DMRS resource element and an information resource element.
  • GP guard period
  • the method further includes transmitting the power setting indication to the second user equipment via an upper layer medium access control control element (MAC-CE) carried in a PSSCH.
  • MAC-CE medium access control control element
  • the user equipment and the method of wireless communication of the same are capable of controlling and setting the appropriate power setting indication, such that the user equipment could save battery, perform long operation time, and/or have good operating performance from less interference.
  • 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 scenario of vehicle-to-everything (V2X) communication according to an embodiment of the present disclosure.
  • V2X vehicle-to-everything
  • FIG. 3 is a flowchart illustrating a method of wireless communication according to the present disclosure, from an aspect of operation of a user equipment for transmitting signals.
  • FIG. 4 is a flowchart illustrating another method of wireless communication according to the present disclosure, from an aspect of operation of a user equipment for receiving signals.
  • FIG. 5 is a diagram of close-loop explicit power control/setting via a dedicated feedback channel according to an embodiment of the present disclosure.
  • FIG. 6 is a diagram of a data transport block according to an embodiment of the present disclosure.
  • FIG. 7 is a diagram of a feedback channel according to an embodiment of the present disclosure.
  • FIG. 8 is a diagram of close-loop explicit power control/setting via a receiver feedback in sidelink control information according to an embodiment of the present disclosure.
  • FIG. 9 is a diagram of close-loop explicit power control/setting via a transmitting UE triggered and an assigned feedback portion in an end of transmission time interval (TTI) according to an embodiment of the present disclosure.
  • FIG. 1 illustrates that, in some embodiments, a user equipment 100 for wireless communication includes a memory 102 and a processor 104 coupled to the memory 102.
  • the processor 104 is configured to perform a closed loop communication over a sidelink interface such as a PC5 interface to a user equipment 200, receive, from the user equipment 200, a plurality of power setting indications having different bit lengths, and perform the power setting indications having the different bit lengths via the closed loop communication over the sidelink interface, such that the user equipment 100 could save battery, perform long operation time, and/or have good operating performance from less interference.
  • a sidelink interface such as a PC5 interface
  • the processor 104 is configured to perform a wireless communication directly over the sidelink interface such as the PC5 interface to the user equipment 200 and transmit at least one data transport block (data TB) including at least one reference signal (RS) to the user equipment 200.
  • the user equipment 100 may be a user equipment for transmitting signals and the user equipment 200 may be a user equipment for receiving signals.
  • the direct wireless communication between the user equipment 100 and the user equipment 200 over the sidelink interface such as the PC5 interface could be based on 4th generation long term evolution (4G-LTE) or 5th generation new radio (5G-NR) radio access technology.
  • FIG. 1 further illustrates that, in some embodiments, the user equipment 200 for wireless communication includes a memory 202 and a processor 204 coupled to the memory 202.
  • the processor 204 is configured to perform a closed loop communication over a sidelink interface such as a PC5 interface to the user equipment 100 and transmit a plurality of power setting indications having different bit lengths to the user equipment 100 via the closed loop communication over the sidelink interface, such that the user equipment 100 could save battery, perform long operation time, and/or have good operating performance from less interference.
  • a sidelink interface such as a PC5 interface
  • the user equipment 100 could save battery, perform long operation time, and/or have good operating performance from less interference.
  • the processor 204 is configured to perform a wireless communication directly over a sidelink interface such as a PC5 interface with the user equipment 100, receive at least one data TB including at least one RS from the user equipment 100, calculate a reference signal received power (RSRP) level according to the at least one RS, derive the power setting indication according to the RSRP level, and transmit, to the user equipment 100, the power setting indication, such that the user equipment 100 could save battery, perform long operation time, and/or have good operating performance from less interference.
  • RSRP reference signal received power
  • the memories 102 and 202 each may include read-only memory (ROM) , random access memory (RAM) , flash memory, memory card, storage medium and/or other storage device.
  • the processors 104 and 204 each may include application-specific integrated circuit (ASIC) , other chipset, logic circuit and/or data processing device.
  • the processors 104 and 204 each may also include baseband circuitry to process radio frequency signals.
  • the techniques described herein can be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein.
  • the modules can be stored in memories 102 and 202 and executed by processors 104 and 204.
  • the memories 102 and 202 can be implemented within the processors 104 and 204 or external to the processors 104 and 204 in which case those can be communicatively coupled to the processors 104 and 204 via various means as is known in the art.
  • the at least one data TB includes at least one of a physical sidelink control channel (PSCCH) , a physical sidelink shared channel (PSSCH) , a physical sidelink broadcast channel (PSBCH) , a tracking RS, and a sidelink synchronization signal (SLSS) .
  • the at least one RS is at least one demodulation reference signal (DMRS) for at least one of the PSCCH, the PSSCH, the PSBCH, the tracking RS, and the SLSS.
  • DMRS demodulation reference signal
  • the bit lengths of the power setting indications are represented by at least two of one bit to provide two power setting indication values, two bits to provide four power setting indication values, and three bits to provide eight power setting indication values.
  • the power setting indication is represented by one bit to provide two power setting indication values. In details, 0 means reducing power and 1 means increasing power, where amount of power to be reduced or increased is at a step of 1dB. In some embodiments, the power setting indication is represented by two bits to provide four power setting indication values. In details, 00 means no change of power, 01 means reducing power by 1dB, 10 means increasing power by 1dB, and 11 is reserved for next use. In some embodiments, the power setting indication is represented by three bits to provide eight power setting indication values.
  • 000 means no change of power
  • 001 means reducing power by 1dB
  • 010 means reducing power by 2dB
  • 011 means reducing power by 3dB
  • 100 is reserved for next use
  • 101 means increasing power by 1dB
  • 110 means increasing power by 2dB
  • 111 means increasing power by 3dB.
  • the processor 104 is further configured to receive at least one second data TB including at least one second RS from the user equipment 200, derive a second power setting indication according to the at least one second RS, and transmit, to the user equipment 200, the second power setting indication.
  • the processor 104 is further configured to calculate a second RSRP level according to the at least one second RS and derive the second power setting indication according to the second RSRP level.
  • the processor 104 is configured to periodically receive the at least one second RS and feed back the second power setting indication to the user equipment 200.
  • FIG. 2 illustrates that, in some embodiments, the communication between the user equipment 100 and the user equipment 200 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 LTE sidelink technology developed under 3rd generation partnership project (3GPP) and/or 5G-NR radio access technology.
  • 3GPP 3rd generation partnership project
  • 5G-NR radio access technology 3rd generation partnership project
  • FIG. 3 illustrates a method 300 of wireless communication according to the present disclosure, from an aspect of operation of the user equipment 100 for transmitting signals.
  • the method 300 includes: at block 302, performing a closed loop communication over a sidelink interface such as a PC 5 interface to the user equipment 200, at block 304, receiving, from the user equipment 200, a plurality of power setting indications having different bit lengths such as via an upper layer medium access control control element (MAC-CE) carried in a PSSCH, and at block 306, performing the power setting indications having the different bit lengths via the closed loop communication over the sidelink interface, such that the user equipment 100 could save battery, perform long operation time, and/or have good operating performance from less interference.
  • MAC-CE medium access control control element
  • FIG. 4 illustrates a method 400 of wireless communication according to the present disclosure, from an aspect of operation of the user equipment 200 for receiving signals.
  • the method 400 includes: at block 402, performing a closed loop communication over a sidelink interface such as a PC 5 interface to the user equipment 100, and at block 404, transmitting a plurality of power setting indications having different bit lengths to the user equipment 100, such as via at least one feedback channel or via an upper layer medium access control control element (MAC-CE) carried in a PSSCH, via the closed loop communication over the sidelink interface, such that the user equipment 100 could save battery, perform long operation time, and/or have good operating performance from less interference.
  • MAC-CE layer medium access control control element
  • FIG. 1 and FIGS. 5 to 7 illustrate that, in some embodiments, the user equipment 100 further includes at least one feedback channel 106.
  • the processor 104 is configured to transmit, to the user equipment 200, the second power setting indication via the at least one feedback channel 106 such as a close-loop explicit power control/setting.
  • a number of the at least one feedback channel 106 is at least two, a periodicity of the at least two feedback channels 106 is every 5, 10, 20, 50, or 100ms depending on carrier tone spacing.
  • a size of the at least one feedback channel 106 is one slot in a time domain and at least one physical resource block (PRB) in a frequency domain.
  • PRB physical resource block
  • the at least one feedback channel 106 includes a guard period (GP) for transmission/reception switching, an orthogonal frequency division multiplexing (OFDM) symbol for receiving automatic gain control (AGC) , and a feedback data region including at least one of a DMRS resource element (RE) and an information resource element.
  • GP guard period
  • OFDM orthogonal frequency division multiplexing
  • FIG. 1 and FIGS. 5 to 7 illustrate that, in some embodiments, the user equipment 200 further includes at least one feedback channel 206.
  • the processor 204 is configured to transmit, to the user equipment 100, the power setting indication via the at least one feedback channel 206 such as a close-loop explicit power control/setting.
  • a number of the at least one feedback channel 206 is at least two, a periodicity of the at least two feedback channels 206 is every 5, 10, 20, 50, or 100ms depending on carrier tone spacing.
  • a size of the at least one feedback channel 206 is one slot in a time domain and at least one PRB in a frequency domain.
  • the at least one feedback channel 206 includes a GP for transmission/reception switching, an OFDM symbol for receiving AGC, and a feedback data region including at least one of a DMRS RE and an information resource element.
  • FIG. 1 and FIG. 8 illustrate that, in some embodiments, the user equipment 100 further includes at least one sidelink control information (SCI) .
  • the processor 104 is configured to encode the second power setting indication in the at least one SCI in the PSCCH.
  • the user equipment 200 further includes at least one SCI.
  • the processor 204 is configured to encode the power setting indication in the at least one SCI in the PSCCH.
  • a parameter of the power setting indication (PSI) is field as part of the at least one SCI transported in the PSCCH, where a PSI feedback report of the user equipment 200 for the user equipment 100 is encoded in the SCI as part of scheduling assignment for the next data TB transmission to the user equipment 100.
  • PSI power setting indication
  • FIG. 1 and FIG. 9 illustrate that, in some embodiments, the processor 104 is configured to schedule at least one SCI at a beginning of a transmission time interval (TTI) and assign a feedback region in an end of the TTI.
  • the processor 104 is configured to receive, from the user equipment 200, the power setting indication via an upper layer medium access control control element (MAC-CE) carried in the PSSCH.
  • MAC-CE layer medium access control control element
  • the processor 204 is configured to schedule at least one SCI at a beginning of a TTI and assign a feedback region in an end of the TTI.
  • the feedback region is assigned by the user equipment 100 and indicated to the user equipment 200 in the scheduling SCI at the beginning of a TTI.
  • the feedback region includes a guard period (GP) of symbols for transmission/reception switching, a calculation of RSRP level, the power setting indication, an OFDM symbol for receiving AGC, and a feedback data region including at least one of a DMRS resource element and an information resource element.
  • the user equipment 200 is up on receiving an indication of feedback region assignment, calculates the RSRP level and prepares a PSI report to be fed back using the feedback region.
  • the feedback region may not be assigned by the user equipment 100 in every sidelink TB transmission. Once the feedback region is assigned, the feedback region serves as a trigger for the user equipment 200 to feedback next PSI report.
  • the user equipment and the method of wireless communication of the same are capable of controlling and setting the appropriate power setting indication, such that the user equipment could save battery, perform long operation time, and/or have good operating performance from less interference.
  • 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.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

L'invention concerne un équipement d'utilisateur et son procédé de communication sans fil. L'équipement d'utilisateur comprend une mémoire et un processeur couplé à la mémoire. Le processeur est configuré pour exécuter une pluralité d'indications de réglage de puissance ayant différentes longueurs de bits à partir d'un second équipement d'utilisateur par l'intermédiaire d'une communication en boucle fermée sur une interface de liaison latérale.
PCT/CN2018/074922 2018-02-01 2018-02-01 Équipement d'utilisateur et son procédé de communication sans fil WO2019148414A1 (fr)

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PCT/CN2018/074922 WO2019148414A1 (fr) 2018-02-01 2018-02-01 Équipement d'utilisateur et son procédé de communication sans fil
CN201880080728.6A CN111492697B (zh) 2018-02-01 2018-02-01 一种无线通信用户设备及其无线通信方法

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PCT/CN2018/074922 WO2019148414A1 (fr) 2018-02-01 2018-02-01 Équipement d'utilisateur et son procédé de communication sans fil

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