WO2018082600A1 - 上行发送波形的配置方法、基站和用户设备 - Google Patents

上行发送波形的配置方法、基站和用户设备 Download PDF

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Publication number
WO2018082600A1
WO2018082600A1 PCT/CN2017/109064 CN2017109064W WO2018082600A1 WO 2018082600 A1 WO2018082600 A1 WO 2018082600A1 CN 2017109064 W CN2017109064 W CN 2017109064W WO 2018082600 A1 WO2018082600 A1 WO 2018082600A1
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Prior art keywords
transmission
waveform
uplink
uplink transmission
base station
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PCT/CN2017/109064
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English (en)
French (fr)
Inventor
刘仁茂
肖芳英
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夏普株式会社
刘仁茂
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Application filed by 夏普株式会社, 刘仁茂 filed Critical 夏普株式会社
Priority to EP17867703.5A priority Critical patent/EP3537677B1/en
Priority to AU2017352946A priority patent/AU2017352946B2/en
Priority to DK17867703.5T priority patent/DK3537677T3/da
Priority to US16/346,093 priority patent/US11601311B2/en
Priority to RU2019116864A priority patent/RU2731677C1/ru
Priority to MX2019005079A priority patent/MX2019005079A/es
Publication of WO2018082600A1 publication Critical patent/WO2018082600A1/zh
Priority to CONC2019/0005700A priority patent/CO2019005700A2/es

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • H04L27/2607—Cyclic extensions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2646—Arrangements specific to the transmitter only using feedback from receiver for adjusting OFDM transmission parameters, e.g. transmission timing or guard interval length
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/022—Selective call receivers
    • H04W88/023—Selective call receivers with message or information receiving capability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2634—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation
    • H04L27/2636—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload

Definitions

  • the present application relates to the field of wireless communication technologies. More specifically, the present application relates to a method for configuring an uplink transmission waveform, a base station, and a user equipment.
  • NTT DOCOMO proposed a new research project on 5G technology standards (see Non-patent literature: RP-160671) :New SID Proposal: Study on New Radio Access Technology), and approved.
  • the goal of the research project is to develop a new wireless (New Radio: NR) access technology to meet all 5G usage scenarios, requirements and deployment environments.
  • NR mainly has three usage scenarios: Enhanced Mobile Broadband (eMBB), Massive Machine Type Communication (mMTC), and Ultra reliable and low latency communications (URLLC).
  • eMBB Enhanced Mobile Broadband
  • mMTC Massive Machine Type Communication
  • URLLC Ultra reliable and low latency communications
  • the standardization of NR is carried out in two phases: the first phase of standardization will be completed in mid-2018; the second phase of standardization will be completed by the end of 2019.
  • the first-stage standard specification is forward-compatible with the second-stage standard specification, while the second-stage standard specification is based on the first-stage standard specification and meets all the requirements of the 5G NR technical standard.
  • the RAN1 working group on discrete Fourier transform-spread-orthogonal frequency division multiplexing (DFT-S-OFDM) and cyclic prefix-orthogonal frequency Sub-multiplexing (CP-OFDM) is used for consensus on the uplink transmission of NR.
  • the NR UE User Equipment: User Equipment
  • the uplink of the existing LTE UE only supports one transmission waveform of DFT-S-OFDM, and therefore, the eNB receives only the DFT-S-OFDM waveform when receiving the data sent by the UE.
  • the uplink supports two types of waveforms the eNB must know which type of waveform the UE is transmitting before receiving the physical channel. Otherwise, it is difficult for the eNB to complete the uplink reception.
  • a base station comprising: a configuration unit configured to configure a transmission waveform used by a user equipment UE for uplink transmission; and a transmitting unit configured to transmit to the UE
  • the configuration information is configured in any of the following manners: physical layer signaling, random access response RAR message of media access control MAC, and radio resource control RRC signaling.
  • the transmit waveform comprises a discrete Fourier transform-extended-orthogonal frequency division multiplexing DFT-S-OFDM waveform and a cyclic prefix-orthogonal frequency division multiplexing CP-OFDM waveform.
  • the configuration unit is configured to: configure, by physical layer signaling, a transmit waveform used by the UE for uplink transmission, the physical layer signaling including downlink control information DCI.
  • the downlink control information DCI includes information indicating a transmission waveform employed by the UE for uplink transmission, or resource allocation information for uplink transmission of the UE.
  • the configuration unit is configured to: configure, by the MAC RAR message, a transmit waveform used by the UE for uplink transmission, the MAC RAR message including an uplink scheduling grant, the uplink scheduling grant indicating a random access message 3 and / Or the transmission waveform used by the subsequent physical uplink shared channel PUSCH.
  • the configuration unit is configured to: after the UE enters the RRC connected state, reconfigure the PUSCH transmission waveform of the UE by using UE-specific RRC signaling.
  • the configuration unit is configured to pre-specify the transmit waveforms used by the UE to transmit the random access message 3 and/or the subsequent PUSCH.
  • the configuration unit is configured to: after the UE enters the RRC connected state, reconfigure the PUSCH transmission waveform of the UE by using UE-specific RRC signaling.
  • the configuration unit is arranged to receive a random access message 1 from the user equipment UE to determine a transmit waveform of the uplink transmission of the UE.
  • the configuration unit is configured to: determine a transmission waveform used by the resources in the respective resource pools for uplink transmission of the UE when performing uplink transmission.
  • a method in a base station comprising: configuring a transmission waveform used by a user equipment UE for uplink transmission; and transmitting information related to the configuration to the UE;
  • the configuration is performed in any of the following manners: physical layer signaling, random access response RAR message of media access control MAC, and radio resource control RRC signaling.
  • the transmitted waveform comprises discrete Fourier transform-extended-orthogonal frequency division multiplexing DFT-S-OFDM waveform and cyclic prefix-orthogonal frequency division multiplexing CP-OFDM waveform.
  • the transmit waveform used by the UE for uplink transmission is configured by physical layer signaling, and the physical layer signaling includes downlink control information DCI.
  • the downlink control information DCI includes information indicating a transmission waveform employed by the UE for uplink transmission, or resource allocation information for uplink transmission of the UE.
  • the UE transmits a transmit waveform for uplink transmission by a MAC RAR message, the MAC RAR message including an uplink scheduling grant, the uplink scheduling grant indicating random access message 3 and/or subsequent physical uplink sharing The transmit waveform used by the channel PUSCH.
  • the PUSCH transmission waveform of the UE is reconfigured by the UE-specific RRC signaling.
  • the transmit waveform used by the UE to transmit the random access message 3 and/or the subsequent PUSCH is predetermined.
  • the PUSCH transmission waveform of the UE is reconfigured by the UE-specific RRC signaling.
  • the random access message 1 is received from the user equipment UE to determine a transmit waveform for the uplink transmission of the UE.
  • the transmission waveforms used by the resources in the respective resource pools for the uplink transmission of the UE when performing uplink transmission are determined in advance.
  • a user equipment UE comprising: a receiving unit configured to receive configuration information about a transmission waveform of an uplink transmission of a UE from a base station; and an extracting unit configured to receive from the received The configuration of the transmission waveform of the uplink transmission of the UE is extracted from the information; wherein the receiving unit receives the configuration information in any of the following manners: physical layer signaling, random access response RAR message of the medium access control MAC, and radio resources Control RRC signaling.
  • the transmit waveform comprises a discrete Fourier transform-extended-orthogonal frequency division multiplexing DFT-S-OFDM waveform and a cyclic prefix-orthogonal frequency division multiplexing CP-OFDM waveform.
  • the transmit waveform used by the UE for uplink transmission is configured by physical layer signaling, and the physical layer signaling includes downlink control information DCI.
  • the downlink control information DCI includes information indicating a transmission waveform employed by the UE for uplink transmission, or resource allocation information for uplink transmission of the UE.
  • the transmit waveform used by the UE for uplink transmission is configured by a MAC RAR message, where the MAC RAR message includes an uplink scheduling grant, and the uplink scheduling grant refers to The transmission waveform used by the random access message 3 and/or the subsequent physical uplink shared channel PUSCH is shown.
  • the PUSCH transmission waveform of the UE is reconfigured by UE-specific RRC signaling.
  • the transmit waveforms used by the UE to transmit the random access message 3 and/or the subsequent PUSCH are predetermined.
  • the PUSCH transmission waveform of the UE is reconfigured by UE-specific RRC signaling.
  • the UE transmits a random access message 1 to the base station to determine a transmit waveform of the uplink transmission of the UE.
  • the transmission waveforms used by the resources in the respective resource pools for uplink transmission of the UE when performing uplink transmission are predetermined.
  • a method in a user equipment UE comprising: receiving, from a base station, configuration information about a transmission waveform of an uplink transmission of a UE; and extracting, from the received information, transmission of an uplink transmission of the UE The configuration of the waveform; wherein the configuration information is received in any of the following manners: physical layer signaling, a random access response RAR message of the medium access control MAC, and radio resource control RRC signaling.
  • the transmit waveform comprises a discrete Fourier transform-extended-orthogonal frequency division multiplexing DFT-S-OFDM waveform and a cyclic prefix-orthogonal frequency division multiplexing CP-OFDM waveform.
  • the transmit waveform used by the UE for uplink transmission is configured by physical layer signaling, and the physical layer signaling includes downlink control information DCI.
  • the downlink control information DCI includes information indicating a transmission waveform employed by the UE for uplink transmission, or resource allocation information for uplink transmission of the UE.
  • the transmit waveform used by the UE for uplink transmission is configured by a MAC RAR message, the MAC RAR message including an uplink scheduling grant indicating random access message 3 and/or subsequent physics
  • the transmit waveform used by the uplink shared channel PUSCH is configured by a MAC RAR message, the MAC RAR message including an uplink scheduling grant indicating random access message 3 and/or subsequent physics
  • the transmit waveform used by the uplink shared channel PUSCH is configured by a MAC RAR message, the MAC RAR message including an uplink scheduling grant indicating random access message 3 and/or subsequent physics
  • the PUSCH transmission waveform of the UE is reconfigured by UE-specific RRC signaling.
  • the transmit waveforms used by the UE to transmit the random access message 3 and/or the subsequent PUSCH are predetermined.
  • the PUSCH transmission waveform of the UE is reconfigured by UE-specific RRC signaling.
  • the UE transmits a random access message 1 to the base station to determine a transmit waveform of the uplink transmission of the UE.
  • the transmission waveforms used by the resources in the respective resource pools for uplink transmission of the UE when performing uplink transmission are predetermined.
  • FIG. 1 is a block diagram showing a base station according to an embodiment of the present application.
  • FIG. 2 is a block diagram showing a user equipment in accordance with one embodiment of the present application.
  • FIG. 3 is a flow chart showing a method performed by a base station in accordance with one embodiment of the present application.
  • FIG. 4 is a flow chart showing a method performed by a user equipment in accordance with one embodiment of the present application.
  • LTE Long Term Evolution
  • eLTE Long Term Evolution
  • NR New Radio
  • the physical uplink channel refers to a physical uplink shared channel and/or a physical uplink control channel, or a physical uplink data channel or a physical uplink control channel defined by the NR for carrying UE uplink data and/or signaling.
  • the transmission waveform used by the user equipment UE for uplink transmission refers to a manner of generating an uplink communication signal, and may include DFT-S-OFDM and CP-OFDM, or other generation methods for generating an uplink communication signal defined by NR. .
  • FIG. 1 shows a block diagram of a base station 100 in accordance with one embodiment of the present application.
  • the base station 100 includes a configuration unit 110 and a transmitting unit 120.
  • base station 100 may also include other functional units necessary to perform its functions, such as various processors, memories, radio frequency signal processing units, baseband signal processing units, and other physical downlink channel transmission processing units, to name a few.
  • processors such as various processors, memories, radio frequency signal processing units, baseband signal processing units, and other physical downlink channel transmission processing units, to name a few.
  • base station 100 may also include other functional units necessary to perform its functions, such as various processors, memories, radio frequency signal processing units, baseband signal processing units, and other physical downlink channel transmission processing units, to name a few.
  • a detailed description of these well-known elements has been omitted for the sake of brevity.
  • the configuration unit 110 configures a transmission waveform used by the user equipment UE for uplink transmission.
  • the configuration unit 110 performs configuration in any of the following manners: physical layer signaling, random access response RAR message of the medium access control MAC, and radio resource control RRC signaling.
  • the transmitting unit 120 transmits information related to the configuration to the UE.
  • the transmit waveform may include a discrete Fourier transform-extended-orthogonal frequency division multiplexing DFT-S-OFDM waveform and a cyclic prefix-orthogonal frequency division multiplexing CP-OFDM waveform, or other defined for generating an uplink.
  • DFT-S-OFDM waveform discrete Fourier transform-extended-orthogonal frequency division multiplexing
  • CP-OFDM waveform cyclic prefix-orthogonal frequency division multiplexing
  • the configuration unit 110 may configure the transmit waveform of the UE 200 for uplink transmission by physical layer signaling, where the physical layer signaling includes downlink control information DCI.
  • the DCI may include information indicating a transmission waveform employed by the uplink transmission of the UE 200, or resource allocation information for uplink transmission of the UE 200.
  • configuration unit 110 may configure a transmit waveform for UE 200 for uplink transmission by a MAC RAR message, the MAC RAR message including an uplink scheduling grant indicating random access message 3 and/or subsequent The transmit waveform used by the physical uplink shared channel PUSCH. Further, after the UE 200 enters the RRC connected state, the configuration unit 110 reconfigures the PUSCH transmission waveform of the UE 200 by using the RRC signaling dedicated by the UE 200.
  • configuration unit 110 pre-specifies the transmit waveforms used by UE 200 to transmit random access message 3 and/or subsequent PUSCH. Further, after the UE 200 enters the RRC connected state, the configuration unit 110 reconfigures the PUSCH transmission waveform of the UE 200 by using the RRC signaling dedicated by the UE 200.
  • the configuration unit 110 may receive the random access message 1 from the user equipment UE 200, The transmit waveform of the uplink transmission of the UE 200 is determined.
  • the configuration unit 110 may predetermine a transmission waveform used by resources in respective resource pools for uplink transmission of the UE 200 when performing uplink transmission.
  • FIG. 2 shows a block diagram of a user equipment UE 200 in accordance with one embodiment of the present application.
  • the UE 200 includes a receiving unit 210 and an extracting unit 220.
  • the UE 200 may also include other functional units necessary to perform its functions, such as various processors, memories, radio frequency signal processing units, baseband signal processing units, and other physical uplink channel transmission processing units, to name a few.
  • processors such as various processors, memories, radio frequency signal processing units, baseband signal processing units, and other physical uplink channel transmission processing units, to name a few.
  • radio frequency signal processing units such as radio frequency signal processing units, baseband signal processing units, and other physical uplink channel transmission processing units
  • the receiving unit 210 receives configuration information about a transmission waveform of an uplink transmission of the UE from the base station.
  • the extracting unit 220 extracts the configuration of the transmission waveform of the uplink transmission of the UE from the received information.
  • the receiving unit 210 may receive configuration information in any of the following manners: physical layer signaling, a random access response RAR message of the medium access control MAC, and radio resource control RRC signaling.
  • the transmit waveform may include a discrete Fourier transform-extended-orthogonal frequency division multiplexing DFT-S-OFDM waveform and a cyclic prefix-orthogonal frequency division multiplexing CP-OFDM waveform, or other defined for generating an uplink.
  • DFT-S-OFDM waveform discrete Fourier transform-extended-orthogonal frequency division multiplexing
  • CP-OFDM waveform cyclic prefix-orthogonal frequency division multiplexing
  • the transmission waveform used by the UE 200 for uplink transmission is configured by physical layer signaling, which includes downlink control information DCI.
  • the DCI may include information indicating a transmission waveform employed by the uplink transmission of the UE 200, or resource allocation information for uplink transmission of the UE 200.
  • the transmit waveform of the UE 200 for uplink transmission is configured by a MAC RAR message including an uplink scheduling grant indicating random access message 3 and/or subsequent physical uplink
  • the transmit waveform used by the shared channel PUSCH After the UE 200 enters the RRC connected state, the PUSCH transmission waveform of the UE 200 is reconfigured by the UE 200 dedicated RRC signaling.
  • the transmit waveforms used by the UE 200 to transmit the random access message 3 and/or the subsequent PUSCH are predetermined. After the UE 200 enters the RRC connected state, the PUSCH transmission waveform of the UE 200 is reconfigured by the UE 200 dedicated RRC signaling.
  • the transmission waveform of the uplink transmission of the UE 200 may be determined by transmitting a random access message 1 to the base station.
  • the resources in the respective resource pools for the uplink transmission of the UE 200 are uplinked.
  • the transmission waveform used at the time of transmission is predetermined.
  • base station 100 and UE 200 will be described by way of several specific embodiments.
  • the base station 100 utilizes physical layer signaling to configure or distinguish the waveforms used by the UE to transmit the physical upstream channel.
  • the configuration unit 110 of the base station 100 can dynamically indicate, by using the downlink control information DCI, the waveform used by the UE to transmit the physical uplink channel.
  • the physical uplink channel mainly refers to a Physical Uplink Sharing Channel (PUSCH).
  • the PUSCH refers to a physical uplink shared channel in the LTE/LTE-A specification, or a physical uplink channel defined by the NR for carrying UE uplink data and/or signaling.
  • the uplink data and/or signaling sent by the UE 200 is scheduled by the physical downlink control channel PDCCH.
  • the PDCCH refers to a physical downlink control channel or an enhanced physical downlink control channel in the LTE/LTE-A specification, or a physical downlink control channel defined by the NR for scheduling a physical uplink channel carrying UE uplink data and/or signaling.
  • DCI formats 0 and 4 can be used to schedule PUSCH.
  • a new DCI format can be defined for scheduling of the PUSCH.
  • a 1-bit information field may be defined in the DCI format for indicating a transmission waveform (eg, using DFT-S-OFDM or CP-OFDM) employed by the UE to transmit the PUSCH. For example, “1" indicates DFT-S-OFDM, and "0" indicates CP-OFDM.
  • DCI for scheduling the PUSCH, it is possible to dynamically indicate whether the transmission waveform employed by the scheduled PUSCH is DFT-S-OFDM or CP-OFDM.
  • the UE 200 may receive the DCI for scheduling the PUSCH in the PDCCH through the receiving unit 210, and extract, by the extracting unit 220, the indication information about the transmission waveform used by the transmitting unit 120 of the base station 100 regarding the PUSCH scheduled by the DCI. Subsequently, the UE 200 transmits the PUSCH using the transmission waveform (DFT-S-OFDM or CP-OFDM) indicated by the base station 100.
  • DFT-S-OFDM or CP-OFDM transmission waveform indicated by the base station 100.
  • the base station 100 can implicitly indicate the waveform used by the UE to transmit the physical uplink channel implicitly by the resources allocated for the physical uplink channel carrying the UE uplink data and/or signaling.
  • the physical uplink channel mainly refers to a physical uplink shared channel PUSCH.
  • PUSCH refers to a physical uplink shared channel in the LTE/LTE-A specification, or an NR defined for carrying UE uplink data and/or signaling.
  • Physical upstream channel Physical upstream channel.
  • the uplink data and/or signaling sent by the UE 200 is scheduled by the physical downlink control channel PDCCH.
  • the PDCCH refers to a physical downlink control channel or an enhanced physical downlink control channel in the LTE/LTE-A specification, or a physical downlink control channel defined by the NR for scheduling a physical uplink channel carrying UE uplink data and/or signaling.
  • base station 100 allocates resources for PUSCH through DCI formats 0 and 4.
  • a new DCI format can be defined to allocate resources for the PUSCH.
  • the allocated resources are expressed in resource block RB or resource block pairs.
  • a resource block refers to a region of two-dimensional time-frequency, that is, consecutive 12 subcarriers in the frequency domain and 7 consecutive OFDM symbols in the time domain; and one resource block pair contains 2 The resource blocks are consecutive 12 subcarriers in the frequency domain and 14 consecutive OFDM symbols in the time domain.
  • the resource block may refer to a resource allocation unit defined in the NR standard.
  • the base station 100 configures different operating frequency bands for different uplink transmission waveforms within the uplink system bandwidth through common RRC signaling.
  • the uplink system bandwidth is 100 RBs
  • the base station 100 configures RBs 0 to 49 as DFT-S-OFDM transmission waveforms, and configures 50 to 99 RBs as CP-OFDM transmission waveforms.
  • the above common RRC signaling may be a Master Information Block (MIB) and/or a System Information Block (SIB) and/or other common RRC signaling defined in the NR.
  • MIB Master Information Block
  • SIB System Information Block
  • the base station 100 allocates resources for the PUSCH through the PDCCH, and can implicitly inform the UE of the transmission waveform used by the scheduled PUSCH by the allocated resources. For example, if the resource allocated by the base station 100 for the PUSCH is located between resource blocks 0 to 49, the UE is implicitly informed that the PUSCH will be transmitted using the DFT-S-OFDM waveform. Otherwise, if the resource allocated by the base station 100 for the PUSCH is located at 50 to 99. Between the resource blocks, the UE is implicitly informed that the PUSCH will be transmitted using the CP-OFDM waveform.
  • the receiving unit 210 of the UE 200 receives, through common RRC signaling, configuration information that the eNB configures different working frequency bands for different uplink transmission waveforms within the uplink system bandwidth.
  • the uplink system bandwidth is 100 RBs
  • the eNB configures the 0 to 49 RBs as the DFT-S-OFDM transmission waveform, and the 50 to 99 RBs as the CP-OFDM transmission waveform.
  • the above common RRC signaling may be a Master Information Block (MIB) and/or a System Information Block (SIB) and/or other common RRC signaling defined in the NR.
  • MIB Master Information Block
  • SIB System Information Block
  • the UE 200 obtains the resource allocated by the base station 100 for its PUSCH by receiving the PDCCH, and the UE 200 can implicitly know the transmission to be used by the current PUSCH by the allocated resource.
  • Waveform For example, if the UE 200 obtains that the resource allocated by the base station 100 for the PUSCH is located between resource blocks 0 to 49, it is implicitly learned that the current PUSCH will be transmitted using the DFT-S-OFDM waveform, otherwise, if the UE 200 obtains When the resources allocated by the base station 100 for the PUSCH are located between the resource blocks 50 to 99, it is implicitly known that the current PUSCH will be transmitted using the CP-OFDM waveform.
  • the base station 100 sets the transmission waveform of the random access message 3 (msg3) and its subsequent physical uplink shared channel PUSCH through the MAC RAR.
  • PUSCH refers to a physical uplink shared channel in the LTE/LTE-A specification, or a physical uplink channel defined by NR for carrying UE 200 uplink data and/or signaling.
  • the UE 200 enters the RRC connected state from the idle state, and a process of random access is required.
  • the random access procedure is mainly composed of message 1 (msg1), message 2 (msg2), message 3 (msg3), and message 4 (msg4).
  • Msg1 is a preamble signal for the UE 200 to transmit random access on the uplink random access channel
  • msg2 is that the base station 100 transmits a random access response message on the downlink
  • msg3 is the first one of the UE 200 on the uplink by the base station 100.
  • the scheduled uplink transmission, the msg3 message is carried by the PUSCH.
  • Msg4 is a message sent by the base station 100 on the downlink to solve the conflict problem between different UEs 200 of the random access procedure.
  • msg3 is the first uplink transmission scheduled by the base station 100 during the UE 200 entering the RRC connected state from the idle state.
  • the base station 100 Before receiving the msg3, the base station 100 needs to know the transmission waveform used by the UE 200 to transmit msg3 (for example, whether to transmit by DFT-S-OFDM or CP-OFDM).
  • the base station 100 may set a 1-bit information field in the uplink scheduling grant (UL-grant) of the MAC RAR to indicate the transmission waveform used by the UE 200 to transmit msg3 and/or its subsequent PUSCH. For example, "1" refers to DFT-S-OFDM, and "0" refers to CP-OFDM.
  • a 1-bit information field may be added to the message header (or message subheader) of the random access response to indicate that the UE 200 transmits the transmit waveform employed by msg3.
  • “1” refers to DFT-S-OFDM
  • "0" refers to CP-OFDM.
  • the base station 100 may reconfigure the uplink of the UE 200 by using the RRC signaling dedicated to the UE 200 according to the channel condition of the UE 200 and/or the traffic of the network and/or other factors affecting the uplink transmission waveform of the UE 200. Send the waveform.
  • the base station 100 configures the transmission waveform of the UE 200 to transmit msg3 and/or its subsequent PUSCH by the UL-grant of the MAC RAR.
  • the base station 100 determines whether it is necessary to reconfigure the transmission waveform of the UE 200 PUSCH. If necessary, the PUSCH transmission waveform is reconfigured by the UE 200 dedicated RRC signaling; if not required, the base station 100 will not retransmit the UE 200 PUSCH transmission waveform, that is, the UE 200 will continue to use the MAC RAR configured transmission waveform transmission.
  • PUSCH of UE 200 is reconfigured by the UE 200 dedicated RRC signaling; if not required, the base station 100 will not retransmit the UE 200 PUSCH transmission waveform, that is, the UE 200 will continue to use the MAC RAR configured transmission waveform transmission.
  • the base station 100 may set the transmission waveform of the random access message 3 (msg3) and all subsequent physical uplink shared channel PUSCHs only through the MAC RAR, without the RRC dedicated to the UE 200 after the UE 200 enters the RRC connected state.
  • the signaling reconfigures the transmit waveform of the UE 200 PUSCH.
  • the UE 200 is pre-specified (or defined) to transmit msg3 and/or its subsequent PUSCH using a certain fixed transmission waveform before entering the RRC connected state. For example, before the UE 200 enters the RRC connected state, it is predetermined to transmit only msg3 and/or its subsequent PUSCH using the DFT-SOFDM waveform.
  • the base station 100 may reconfigure the UE 200 by using the UE 200 dedicated RRC signaling according to the channel condition of the UE 200 and/or the traffic of the network and/or other factors affecting the uplink transmission waveform of the UE 200.
  • the upstream transmit waveform may be configured to transmit msg3 and/or its subsequent PUSCH using a certain fixed transmission waveform before entering the RRC connected state. For example, before the UE 200 enters the RRC connected state, it is predetermined to transmit only msg3 and/or its subsequent PUSCH using the DFT-SOFDM waveform.
  • the base station 100 may reconfigure the
  • the UE 200 acquires configuration information of a transmission waveform of the random access message 3 (msg3) and its subsequent physical uplink shared channel PUSCH through the MAC RAR. After the UE 200 enters the RRC connected state, the UE 200 acquires configuration information about the PUSCH transmission waveform through dedicated RRC signaling.
  • PUSCH refers to a physical uplink shared channel in the LTE/LTE-A specification, or a physical uplink channel defined by NR for carrying UE 200 uplink data and/or signaling.
  • the UE 200 enters the RRC connected state from the idle state, and a process of random access is required.
  • the random access procedure is mainly composed of message 1 (msg1), message 2 (msg2), message 3 (msg3), and message 4 (msg4).
  • Msg1 is a preamble signal for the UE 200 to transmit random access on the uplink random access channel
  • msg2 is that the base station 100 transmits a random access response message on the downlink
  • msg3 is the first one of the UE 200 on the uplink by the base station 100.
  • the scheduled uplink transmission, the msg3 message is carried by the PUSCH.
  • Msg4 is a message sent by the base station 100 on the downlink to solve the conflict problem between the UEs 200 with different random access procedures.
  • msg3 is the first uplink transmission scheduled by the base station 100 during the UE 200 entering the RRC connected state from the idle state.
  • UE 200 needs to know UE 200 before sending msg3 Which waveform is used to transmit msg3 (for example, whether to transmit with DFT-S-OFDM or with CP-OFDM).
  • the UE 200 acquires a transmission waveform used by the UE 200 to transmit msg3 and/or its subsequent PUSCH by receiving the 1-bit information field in the uplink scheduling grant (UL-grant) of the MAC RAR by the receiving base station 100.
  • the received information field is "1"
  • the received information field is "0”
  • the UE 200 is required to The msg3 and/or its subsequent PUSCH are transmitted using the CP-OFDM waveform.
  • the UE 200 may acquire a transmission waveform used by the UE 200 to transmit msg3 and/or its subsequent PUSCH by receiving a 1-bit information field configured by the base station 100 in a message header (or a message subheader) of the random access response. . For example, if the received information field is “1”, it indicates that the UE 200 needs to transmit msg3 and/or its subsequent PUSCH by using a DFT-S-OFDM waveform. If the received information field is “0”, it indicates that the UE 200 is to be used.
  • the CP-OFDM waveform transmits msg3 and/or its subsequent PUSCH.
  • the UE 200 may receive the reconfiguration information of the uplink transmission waveform of the UE 200 by the base station 100 by using the dedicated RRC signaling to obtain the transmission waveform that the UE 200 needs to use to transmit the PUSCH.
  • the UE 200 may acquire, by using the MAC RAR, configuration information of the transmission waveform configured by the base station 100 for the UE 200 to transmit the random access message 3 (msg3) and/or all subsequent physical uplink shared channel PUSCH thereof, and The reconfiguration information of the PUSCH transmission waveform of the UE 200 is not acquired by the UE 200 dedicated RRC signaling after entering the RRC connected state.
  • msg3 random access message 3
  • PUSCH physical uplink shared channel
  • the UE 200 may be pre-specified (or defined) to transmit msg3 and/or its subsequent PUSCH with a certain fixed transmission waveform before entering the RRC connected state. For example, before the UE 200 enters the RRC connected state, it is pre-defined that only the DFT-SOFDM waveform is used to transmit the msg3 and/or its subsequent PUSCH, and after the UE 200 enters the RRC connected state, the UE 200 may pass the RRC letter dedicated by the UE 200. The reconfiguration information of the PUSCH transmission waveform of the UE 200 is obtained.
  • the UE 200 selects its transmit waveform for msg3 and/or its subsequent PUSCH and notifies the base station 100 by the preamble of msg1.
  • the UE 200 enters the RRC connection state from the idle state and needs to be randomly connected.
  • the random access procedure is mainly composed of message 1 (msg1), message 2 (msg2), message 3 (msg3), and message 4 (msg4).
  • Msg1 is a preamble signal for the UE 200 to transmit random access on the uplink random access channel
  • msg2 is that the base station 100 transmits a random access response message on the downlink
  • msg3 is the first one of the UE 200 on the uplink by the base station 100.
  • the scheduled uplink transmission, the msg3 message is carried by the PUSCH.
  • Msg4 is a message sent by the base station 100 on the downlink to solve the conflict problem between different UEs 200 in the random access procedure.
  • msg3 is the first uplink transmission scheduled by the base station 100 during the UE 200 entering the RRC connected state from the idle state.
  • the base station 100 Before receiving the msg3, the base station 100 needs to know the transmission waveform used by the UE 200 to transmit msg3 (for example, whether to transmit by DFT-S-OFDM or CP-OFDM).
  • the UE 200 may inform the base station 100 of the transmission waveform used by the base station 100 to transmit msg3 and/or subsequent PUSCH through the preamble signal of msg1.
  • the preamble can be divided into two preamble groups.
  • One set of preambles (group 1) is used to indicate that the UE 200 will transmit msg3 and/or subsequent PUSCH using the DFT-S-OFDM waveform.
  • Another set of preambles (group 2) is used to indicate that the UE 200 will transmit msg3 and/or subsequent PUSCHs using the CP-OFDM waveform.
  • the UE 200 randomly selects a preamble from the group 1 for the transmission of msg1; if the UE 200 wants to transmit the msg3 and/or the CP-OFDM waveform, For the subsequent PUSCH, the UE 200 randomly selects a preamble from the group 2 to perform the transmission of msg1.
  • the base station 100 may reconfigure the UE 200 by using the RRC signaling dedicated to the UE 200 according to the channel condition of the UE 200 and/or the traffic of the network and/or other factors affecting the uplink transmission waveform of the UE 200. Send the waveform upstream.
  • the UE 200 may select a transmission waveform for transmitting the random access message 3 (msg3) and/or all subsequent physical uplink shared channel PUSCHs only by the preamble, without passing the UE 200 after entering the RRC connected state.
  • the base station 100 reconfigures the transmission waveform of the UE 200 PUSCH by the RRC signaling dedicated to the UE 200.
  • the base station 100 acquires transmission waveform information of the UE 200 for msg3 and/or its subsequent PUSCH by detecting the preamble of msg1.
  • the PUSCH refers to a physical uplink shared channel in the LTE/LTE-A specification, or a physical uplink channel defined by the NR for carrying uplink data and/or signaling of the UE 200.
  • the UE 200 enters the RRC connected state from the idle state, and a process of random access is required. Random access is mainly composed of message 1 (msg1), message 2 (msg2), message 3 (msg3), and message 4 (msg4) composition.
  • Msg1 is a preamble signal for the UE 200 to transmit random access on the uplink random access channel
  • msg2 is that the base station 100 transmits a random access response message on the downlink
  • msg3 is the first one of the UE 200 on the uplink by the base station 100.
  • the scheduled uplink transmission, the msg3 message is carried by the PUSCH.
  • Msg4 is a message sent by the base station 100 on the downlink to solve the conflict problem between different UEs 200 in the random access procedure.
  • msg3 is the first uplink transmission scheduled by the base station 100 during the UE 200 entering the RRC connected state from the idle state.
  • the base station 100 Before receiving the msg3, the base station 100 needs to know the transmission waveform used by the UE 200 to transmit msg3 (for example, whether to transmit by DFT-S-OFDM or CP-OFDM).
  • the base station 100 can acquire transmission waveform information used by the UE 200 to transmit msg3 and/or subsequent PUSCH by detecting a preamble of msg1.
  • the preamble can be divided into two preamble groups.
  • One set of preambles (group 1) is used to indicate that the UE 200 will transmit msg3 and/or subsequent PUSCH using the DFT-S-OFDM waveform.
  • Another set of preambles (group 2) is used to indicate that the UE 200 will transmit msg3 and/or subsequent PUSCHs using the CP-OFDM waveform.
  • the base station 100 detects the preamble transmitted by the UE 200 in the group 1, the base station 100 knows that the UE 200 will transmit msg3 and/or subsequent PUSCH using the DFT-S-OFDM waveform; if the base station 100 detects the UE 200 in the group 2 The transmitted preamble, then the base station 100 knows that the UE 200 will transmit msg3 and/or subsequent PUSCH using the CP-OFDM waveform.
  • the UE 200 may acquire reset information of the PUSCH transmission waveform of the UE 200 by using the RRC signaling dedicated by the UE 200.
  • the base station 100 may acquire the transmission waveform information used by the UE 200 to transmit the random access message 3 (msg3) and/or all subsequent physical uplink shared channel PUSCHs only by detecting the preamble.
  • the UE 200 PUSCH transmission waveform is not reconfigured by the UE 200 dedicated RRC signaling after the UE 200 enters the RRC connection state.
  • the determination of the uplink transmission waveform of the UE 200 without the authorized uplink transmission is mainly solved.
  • the unlicensed uplink transmission mode is that the UE 200 randomly selects the uplink transmission resource or directly uses the resources preconfigured by the base station 100 to directly transmit the uplink data without the scheduling of the base station 100. Even, The UE 200 does not need to perform a random access procedure.
  • This transmission method is generally applicable to the transmission of uplink small data. That is, once the UE 200 has uplink data to be transmitted, and the data packet is less than a certain threshold, the UE 200 directly selects the uplink resource to perform uplink data transmission, and does not need to request the scheduling of the base station 100.
  • the implementation of the unlicensed uplink transmission mode is based on the resource pool.
  • the uplink sending resource pool of the unlicensed uplink transmission may be a contention-based resource pool or a non-competitive resource pool.
  • the contention-based resource pool is used by the UE 200 to randomly select uplink transmission resources from the resource pool for the uplink data transmission of the UE 200.
  • the non-competitive resource pool is used by the base station to pre-configure the uplink resource for the UE 200 to send uplink data for the UE 200 from the resource pool.
  • the transmission waveform used by the resources in the resource pool for uplink transmission may be predefined based on the resource pool.
  • Resource pools 1 and 2 are contention-based resource pools; resources pools 3 and 4 are non-contention-based resource pools.
  • the resources in the resource pools 1 and 3 use the DFT-S-OFDM waveform to transmit the uplink data and/or signaling of the UE 200; the resources in the 2 and 4 resource pools use the CP-OFDM waveform to transmit the uplink data of the UE 200. And / or signaling.
  • the UE 200 when the UE 200 wants to transmit uplink data and/or signaling using the DFT-S-OFDM waveform, the UE 200 randomly selects resources from the No. 1 resource pool for uplink data and/or signaling transmission; When 200 wants to transmit uplink data and/or signaling by using the CP-OFDM waveform, the UE 200 randomly selects resources from the No. 2 resource pool to transmit uplink data and/or signaling.
  • the base station 100 wants the UE 200 to transmit uplink data and/or signaling using the DFT-S-OFDM waveform, the UE 200 is pre-configured with resources for the uplink data and/or signaling of the UE 200 from the resource pool No.
  • the UE 200 When the base station 100 wants the UE 200 to transmit uplink data and/or signaling using the CP-OFDM waveform, the UE 200 is pre-configured with resources for the transmission of the UE 200 uplink data and/or signaling from the resource pool No. 4 .
  • the DFT-S-OFDM waveform is used to receive uplink data and/or signaling sent by the UE 200; and when the base station When receiving uplink data and/or signaling of the UE 200 from the resource pools 2 and 4, the CP-OFDM waveform is used to receive uplink data and/or signaling transmitted by the UE 200.
  • the uplink resource pool of the unlicensed uplink transmission may be the preamble resource pool and/or Or uplink control signaling resource pool and/or uplink data resource pool.
  • method 300 begins at step S310.
  • the transmission waveform for the uplink transmission by the user equipment UE 200 is configured.
  • step S330 information related to the configuration is transmitted to the UE.
  • configuration may be performed in any of the following manners: physical layer signaling, random access response RAR message of media access control MAC, and radio resource control RRC signaling.
  • the transmit waveform may include discrete Fourier transform-extended-orthogonal frequency division multiplexing DFT-S-OFDM waveforms and cyclic prefix-orthogonal frequency division multiplexing CP-OFDM waveforms, or other defined generations for generating uplink communication signals. the way.
  • the transmit waveform of the UE 200 for uplink transmission may be configured by physical layer signaling, which includes downlink control information DCI.
  • the DCI may include information indicating a transmission waveform employed by the uplink transmission of the UE 200, or resource allocation information for uplink transmission of the UE 200.
  • the transmit waveform of the UE 200 for uplink transmission may be configured by a MAC RAR message, the MAC RAR message including an uplink scheduling grant indicating random access message 3 and/or subsequent physical uplink sharing The transmit waveform used by the channel PUSCH. Further, after the UE 200 enters the RRC connected state, the PUSCH transmission waveform of the UE 200 is reconfigured by the UE 200 dedicated RRC signaling.
  • the transmit waveform used by the UE 200 to transmit the random access message 3 and/or the subsequent PUSCH may be predetermined. Further, after the UE 200 enters the RRC connected state, the PUSCH transmission waveform of the UE 200 is reconfigured by the UE 200 dedicated RRC signaling. Alternatively, the random access message 1 may be received from the user equipment UE 200 to determine a transmit waveform of the uplink transmission of the UE 200. Alternatively, the transmission waveforms used by the resources in the respective resource pools for the uplink transmission of the UE 200 when performing uplink transmission may be determined in advance.
  • method 300 ends at step S340.
  • method 400 begins at step S410.
  • step S420 configuration information about a transmission waveform of an uplink transmission of the UE is received from the base station.
  • a configuration of a transmission waveform for uplink transmission of the UE is extracted from the received information.
  • configuration may be performed in any of the following manners: physical layer signaling, random access response RAR message of media access control MAC, and radio resource control RRC signaling.
  • the transmit waveform may include discrete Fourier transform-extended-orthogonal frequency division multiplexing DFT-S-OFDM waveforms and cyclic prefix-orthogonal frequency division multiplexing CP-OFDM waveforms, or other defined generations for generating uplink communication signals. the way.
  • the transmit waveform used by the UE 200 for uplink transmission may be configured by physical layer signaling including downlink control information DCI.
  • the DCI may include information indicating a transmission waveform employed by the uplink transmission of the UE 200, or resource allocation information for uplink transmission of the UE 200.
  • the transmit waveform used by the UE 200 for uplink transmission may be configured by a MAC RAR message including an uplink scheduling grant indicating random access message 3 and/or subsequent physical uplink sharing The transmit waveform used by the channel PUSCH. Further, after the UE 200 enters the RRC connected state, the PUSCH transmission waveform of the UE 200 is reconfigured by the UE 200 dedicated RRC signaling.
  • the transmit waveform used by the UE 200 to transmit the random access message 3 and/or the subsequent PUSCH may be predetermined. Further, after the UE 200 enters the RRC connected state, the PUSCH transmission waveform of the UE 200 is reconfigured by the UE 200 dedicated RRC signaling. Alternatively, the user equipment UE 200 may transmit a random access message 1 to the base station 100, so that the base station 100 can determine the transmission waveform of the uplink transmission of the UE 200 according to the received random access message 1. Alternatively, the transmission waveforms used by the resources in the respective resource pools for the uplink transmission of the UE 200 when performing uplink transmission may be predetermined.
  • method 400 ends at step S440.
  • the method of the present application and the apparatus involved have been described above in connection with the preferred embodiments. Those skilled in the art will appreciate that the methods shown above are merely exemplary. The methods of the present application are not limited to the steps and sequences shown above.
  • the network nodes and user equipment shown above may include more modules, for example, may also include modules that may be developed or developed in the future for base stations, or UEs, and the like.
  • the various logos shown above are merely exemplary and not limiting, and the application is not limited to specific cells as examples of such identifications. Many variations and modifications can be made by those skilled in the art in light of the teachings of the illustrated embodiments.
  • the above-described embodiments of the present application can be implemented by software, hardware, or a combination of both software and hardware.
  • the base station and various components within the user equipment in the above embodiments may be implemented by various devices including, but not limited to, analog circuit devices, digital circuit devices, digital signal processing (DSP) circuits, and programmable processing. , Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs), Programmable Logic Devices (CPLDs), and more.
  • ASICs Application Specific Integrated Circuits
  • FPGAs Field Programmable Gate Arrays
  • CPLDs Programmable Logic Devices
  • base station refers to a mobile communication data and control switching center having a large transmission power and a relatively large coverage area, including resource allocation scheduling, data reception and transmission, and the like.
  • User equipment refers to a user mobile terminal, for example, a terminal device including a mobile phone, a notebook, etc., which can perform wireless communication with a base station or a micro base station.
  • the computer program product is a product having a computer readable medium encoded with computer program logic that, when executed on a computing device, provides related operations to implement The above technical solution of the present application.
  • the computer program logic When executed on at least one processor of a computing system, the computer program logic causes the processor to perform the operations (methods) described in this application.
  • Such an arrangement of the present application is typically provided as software, code, and/or other data structures, such as one or more, that are arranged or encoded on a computer readable medium such as an optical medium (eg, CD-ROM), floppy disk, or hard disk.
  • Software or firmware or such a configuration may be installed on the computing device such that one or more processors in the computing device perform the technical solutions described in the embodiments of the present application.
  • each functional module or individual feature of the base station device and the terminal device used in each of the above embodiments may be implemented or executed by circuitry, typically one or more integrated circuits.
  • Circuitry designed to perform the various functions described in this specification can include general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs) or general purpose integrated circuits, field programmable gate arrays (FPGAs), or others. Programming logic, discrete gate or transistor logic, Or discrete hardware components, or any combination of the above.
  • a general purpose processor may be a microprocessor, or the processor may be an existing processor, controller, microcontroller, or state machine.
  • the above general purpose processor or each circuit may be configured by a digital circuit or may be configured by a logic circuit.
  • the present application can also use integrated circuits obtained using the advanced technology.
  • the program running on the device may be a program that causes a computer to implement the functions of the embodiments of the present application by controlling a central processing unit (CPU).
  • the program or information processed by the program may be temporarily stored in a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a non-volatile memory (such as a flash memory), or other memory system.
  • a volatile memory such as a random access memory RAM
  • HDD hard disk drive
  • non-volatile memory such as a flash memory
  • a program for realizing the functions of the embodiments of the present application can be recorded on a computer readable recording medium.
  • the corresponding functions can be realized by causing a computer system to read programs recorded on the recording medium and execute the programs.
  • the so-called "computer system” herein may be a computer system embedded in the device, and may include an operating system or hardware (such as a peripheral device).
  • the "computer readable recording medium” may be a semiconductor recording medium, an optical recording medium, a magnetic recording medium, a recording medium of a short-term dynamic storage program, or any other recording medium readable by a computer.
  • circuitry e.g., monolithic or multi-chip integrated circuits.
  • Circuitry designed to perform the functions described in this specification can include general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), or other programmable logic devices, discrete Gate or transistor logic, discrete hardware components, or any combination of the above.
  • DSPs digital signal processors
  • ASICs application specific integrated circuits
  • FPGAs field programmable gate arrays
  • a general purpose processor may be a microprocessor or any existing processor, controller, microcontroller, or state machine.
  • the above circuit may be a digital circuit or an analog circuit. In the case of new integrated circuit technologies that replace existing integrated circuits due to advances in semiconductor technology, the present application can also be implemented using these new integrated circuit technologies.

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Abstract

提供了一种基站，包括：配置单元，被设置为对用户设备UE用于上行传输的发送波形进行配置；以及发送单元，被设置为向UE发送与配置有关的信息。配置单元采用以下任意方式来进行配置：物理层信令、媒体接入控制MAC的随机接入响应RAR消息、无线资源控制RRC信令。本申请还提供了一种用户设备和相应的方法。

Description

上行发送波形的配置方法、基站和用户设备 技术领域
本申请涉及无线通信技术领域，更具体地，本申请涉及上行发送波形的配置方法、基站和用户设备。
背景技术
2016年3月，在第三代合作伙伴计划(3rd Generation Partnership Project：3GPP)RAN#71次全会上，NTT DOCOMO提出了一个关于5G技术标准的新的研究项目(参见非专利文献：RP-160671：New SID Proposal：Study on New Radio Access Technology)，并获批准。该研究项目的目的是开发一个新的无线(New Radio：NR)接入技术以满足5G的所有使用场景、需求和部署环境。NR主要有三个使用场景：增强的移动宽带通信(Enhanced mobile broadband：eMBB)、大规模机器类通信(massive Machine type communication：mMTC)和超可靠低延迟通信(Ultra reliable and low latency communications：URLLC)。按照该研究项目的规划，NR的标准化分二个阶段进行：第一阶段的标准化工作将于2018年中期完成；第二阶段的标准化工作将于2019年底完成。第一阶段的标准规范要前向兼容于第二阶段的标准规范，而第二阶段的标准规范要建立在第一阶段的标准规范之上，并满足5G NR技术标准的所有要求。
2016年10月，在里斯本举行的3GPP RAN1#86bis次会议上，RAN1工作组就离散傅里叶变换-扩频-正交频分复用(DFT-S-OFDM)和循环前缀-正交频分复用(CP-OFDM)用于NR的上行传输达成共识。而且，NR UE(用户设备：User Equipment)必须强制支持以上两种传输波形。然而，现有的LTE UE的上行链路只支持DFT-S-OFDM一种传输波形，因此，eNB接收UE发来的数据时只按DFT-S-OFDM波形接收。当上行链路支持两种波形时，eNB接收物理信道前，必须知道UE是采用何种波形发送，否则，eNB难以完成上行链路的接收。
发明内容
根据本申请的一个方面，提供了一种基站，包括：配置单元，被设置为对用户设备UE用于上行传输的发送波形进行配置；以及发送单元，被设置为向所述UE发送与所述配置有关的信息；其中，所述配置单元采用以下任意方式来进行配置：物理层信令、媒体接入控制MAC的随机接入响应RAR消息、无线资源控制RRC信令。
在一个实施例中，发送波形包括离散傅立叶变换-扩展-正交频分复用DFT-S-OFDM波形和循环前缀-正交频分复用CP-OFDM波形。
在一个实施例中，配置单元被设置为：通过物理层信令来配置UE用于上行传输的发送波形，所述物理层信令包括下行控制信息DCI。
在一个实施例中，下行控制信息DCI包括指示UE的上行传输所采用的发送波形的信息，或者包括用于UE的上行传输的资源分配信息。
在一个实施例中，配置单元被设置为：通过MAC RAR消息来配置UE用于上行传输的发送波形，所述MAC RAR消息包括上行调度许可，所述上行调度许可指示随机接入消息3和/或后续的物理上行共享信道PUSCH所采用的发送波形。
在一个实施例中，配置单元被设置为：当UE进入RRC连接状态后，通过UE专用的RRC信令重新配置UE的PUSCH的发送波形。
在一个实施例中，配置单元被设置为：预先规定UE用于发送随机接入消息3和/或后续的PUSCH的发送波形。
在一个实施例中，配置单元被设置为：在UE进入RRC连接状态后，通过UE专用的RRC信令重新配置UE的PUSCH的发送波形。
在一个实施例中，配置单元被设置为：从用户设备UE接收随机接入消息1，以确定UE的上行传输的发送波形。
在一个实施例中，配置单元被设置为：预先确定用于UE的上行传输的各个资源池中的资源在进行上行发送时所采用的发送波形。
根据本申请的另一个方面，提供了一种基站中的方法，包括：对用户设备UE用于上行传输的发送波形进行配置；以及向所述UE发送与所述配置有关的信息；其中，采用以下任意方式来进行配置：物理层信令、媒体接入控制MAC的随机接入响应RAR消息、无线资源控制RRC信令。
在一个实施例中，发送波形包括离散傅立叶变换-扩展-正交频分复用 DFT-S-OFDM波形和循环前缀-正交频分复用CP-OFDM波形。
在一个实施例中，通过物理层信令来配置UE用于上行传输的发送波形，所述物理层信令包括下行控制信息DCI。
在一个实施例中，下行控制信息DCI包括指示UE的上行传输所采用的发送波形的信息，或者包括用于UE的上行传输的资源分配信息。
在一个实施例中，通过MAC RAR消息来配置UE用于上行传输的发送波形，所述MAC RAR消息包括上行调度许可，所述上行调度许可指示随机接入消息3和/或后续的物理上行共享信道PUSCH所采用的发送波形。
在一个实施例中，当UE进入RRC连接状态后，通过UE专用的RRC信令重新配置UE的PUSCH的发送波形。
在一个实施例中，预先规定UE用于发送随机接入消息3和/或后续的PUSCH的发送波形。
在一个实施例中，在UE进入RRC连接状态后，通过UE专用的RRC信令重新配置UE的PUSCH的发送波形。
在一个实施例中，从用户设备UE接收随机接入消息1，以确定UE的上行传输的发送波形。
在一个实施例中，预先确定用于UE的上行传输的各个资源池中的资源在进行上行发送时所采用的发送波形。
根据本申请的另一个方面，提供了一种用户设备UE，包括：接收单元，被设置为从基站接收关于UE的上行传输的发送波形的配置信息；以及提取单元，被设置为从所接收的信息中提取UE的上行传输的发送波形的配置；其中，所述接收单元采用以下任意方式来接收所述配置信息：物理层信令、媒体接入控制MAC的随机接入响应RAR消息、无线资源控制RRC信令。
在一个实施例中，发送波形包括离散傅立叶变换-扩展-正交频分复用DFT-S-OFDM波形和循环前缀-正交频分复用CP-OFDM波形。
在一个实施例中，UE用于上行传输的发送波形是通过物理层信令来配置的，所述物理层信令包括下行控制信息DCI。
在一个实施例中，下行控制信息DCI包括指示UE的上行传输所采用的发送波形的信息，或者包括用于UE的上行传输的资源分配信息。
在一个实施例中，UE用于上行传输的发送波形是通过MAC RAR消息来配置的，所述MAC RAR消息包括上行调度许可，所述上行调度许可指 示随机接入消息3和/或后续的物理上行共享信道PUSCH所采用的发送波形。
在一个实施例中，当UE进入RRC连接状态后，UE的PUSCH的发送波形通过UE专用的RRC信令来重新配置。
在一个实施例中，UE用于发送随机接入消息3和/或后续的PUSCH的发送波形是预先规定的。
在一个实施例中，在UE进入RRC连接状态后，UE的PUSCH的发送波形通过UE专用的RRC信令来重新配置。
在一个实施例中，UE向基站发送随机接入消息1，以确定UE的上行传输的发送波形。
在一个实施例中，用于UE的上行传输的各个资源池中的资源在进行上行发送时所采用的发送波形是预先确定的。
根据本申请的另一个方面，提供了一种用户设备UE中的方法，包括：从基站接收关于UE的上行传输的发送波形的配置信息；以及从所接收的信息中提取UE的上行传输的发送波形的配置；其中，采用以下任意方式来接收所述配置信息：物理层信令、媒体接入控制MAC的随机接入响应RAR消息、无线资源控制RRC信令。
在一个实施例中，发送波形包括离散傅立叶变换-扩展-正交频分复用DFT-S-OFDM波形和循环前缀-正交频分复用CP-OFDM波形。
在一个实施例中，UE用于上行传输的发送波形是通过物理层信令来配置的，所述物理层信令包括下行控制信息DCI。
在一个实施例中，下行控制信息DCI包括指示UE的上行传输所采用的发送波形的信息，或者包括用于UE的上行传输的资源分配信息。
在一个实施例中，UE用于上行传输的发送波形是通过MAC RAR消息来配置的，所述MAC RAR消息包括上行调度许可，所述上行调度许可指示随机接入消息3和/或后续的物理上行共享信道PUSCH所采用的发送波形。
在一个实施例中，当UE进入RRC连接状态后，UE的PUSCH的发送波形通过UE专用的RRC信令来重新配置。
在一个实施例中，UE用于发送随机接入消息3和/或后续的PUSCH的发送波形是预先规定的。
在一个实施例中，在UE进入RRC连接状态后，UE的PUSCH的发送波形通过UE专用的RRC信令来重新配置。
在一个实施例中，UE向基站发送随机接入消息1，以确定UE的上行传输的发送波形。
在一个实施例中，用于UE的上行传输的各个资源池中的资源在进行上行发送时所采用的发送波形是预先确定的。
附图说明
通过下文结合附图的详细描述，本申请的上述和其它特征将会变得更加明显，其中：
图1是示出了根据本申请一个实施例的基站的框图。
图2是示出了根据本申请一个实施例的用户设备的框图。
图3是示出了根据本申请一个实施例的由基站执行的方法的流程图。
图4是示出了根据本申请一个实施例的由用户设备执行的方法的流程图。
具体实施方式
下面结合附图和具体实施方式对本公开进行详细阐述。应当注意，本公开不应局限于下文所述的具体实施方式。另外，为了简便起见，省略了对与本公开没有直接关联的公知技术的详细描述，以防止对本公开的理解造成混淆。
下面描述本申请涉及的部分术语，如未特别说明，本申请涉及的术语采用此处定义。此外，本申请以LTE、eLTE和NR为例进行说明。需要说明的是，本申请并不限于所述LTE、eLTE和NR，也可以用于其他无线通信系统，例如6G无线通信系统。
在本申请中，物理上行信道是指物理上行共享信道和/或物理上行控制信道，或NR定义的用于承载UE上行数据和/或信令的物理上行数据信道或物理上行控制信道。
在本申请中，用户设备UE用于上行传输的发送波形是指上行通信信号的生成方式，可以包括DFT-S-OFDM和CP-OFDM，或NR定义的用于生成上行通信信号的其它生成方式。
图1示出了根据本申请的一个实施例的基站100的框图。如图1所示，基站100包括配置单元110和发送单元120。本领域技术人员应理解，基站100还可以包括实现其功能所必需的其他功能单元，如各种处理器、存储器、射频信号处理单元、基带信号处理单元和其它物理下行信道发射处理单元等等。然而为了简便，省略了这些公知元件的详细描述。
配置单元110对用户设备UE用于上行传输的发送波形进行配置。例如，配置单元110采用以下任意方式来进行配置：物理层信令、媒体接入控制MAC的随机接入响应RAR消息、无线资源控制RRC信令。发送单元120向UE发送与所述配置有关的信息。
在本申请中，发送波形可以包括离散傅立叶变换-扩展-正交频分复用DFT-S-OFDM波形和循环前缀-正交频分复用CP-OFDM波形，或者其他定义的用于生成上行通信信号的其它生成方式。
备选地，配置单元110可以通过物理层信令来配置UE 200用于上行传输的发送波形，所述物理层信令包括下行控制信息DCI。DCI可以包括指示UE 200的上行传输所采用的发送波形的信息，或者包括用于UE 200的上行传输的资源分配信息。
备选地，配置单元110可以通过MAC RAR消息来配置UE 200用于上行传输的发送波形，所述MAC RAR消息包括上行调度许可，所述上行调度许可指示随机接入消息3和/或后续的物理上行共享信道PUSCH所采用的发送波形。进一步地，配置单元110在UE 200进入RRC连接状态后，通过UE 200专用的RRC信令重新配置UE 200的PUSCH的发送波形。
备选地，配置单元110预先规定UE 200用于发送随机接入消息3和/或后续的PUSCH的发送波形。进一步地，配置单元110在UE 200进入RRC连接状态后，通过UE 200专用的RRC信令重新配置UE 200的PUSCH的发送波形。
备选地，配置单元110可以从用户设备UE 200接收随机接入消息1， 以确定UE 200的上行传输的发送波形。
备选地，配置单元110可以预先确定用于UE 200的上行传输的各个资源池中的资源在进行上行发送时所采用的发送波形。
图2示出了根据本申请的一个实施例的用户设备UE 200的框图。如图2所示，UE 200包括接收单元210和提取单元220。本领域技术人员应理解，UE 200还可以包括实现其功能所必需的其他功能单元，如各种处理器、存储器、射频信号处理单元、基带信号处理单元和其它物理上行信道发射处理单元等等。然而为了简便，省略了这些公知元件的详细描述。
接收单元210从基站接收关于UE的上行传输的发送波形的配置信息。提取单元220从所接收的信息中提取UE的上行传输的发送波形的配置。其中，接收单元210可以采用以下任意方式来接收配置信息：物理层信令、媒体接入控制MAC的随机接入响应RAR消息、无线资源控制RRC信令。
在本申请中，发送波形可以包括离散傅立叶变换-扩展-正交频分复用DFT-S-OFDM波形和循环前缀-正交频分复用CP-OFDM波形，或者其他定义的用于生成上行通信信号的其它生成方式。
备选地，UE 200用于上行传输的发送波形是通过物理层信令来配置的，所述物理层信令包括下行控制信息DCI。DCI可以包括指示UE 200的上行传输所采用的发送波形的信息，或者包括用于UE 200的上行传输的资源分配信息。
备选地，UE 200用于上行传输的发送波形是通过MAC RAR消息来配置的，所述MAC RAR消息包括上行调度许可，所述上行调度许可指示随机接入消息3和/或后续的物理上行共享信道PUSCH所采用的发送波形。当UE 200进入RRC连接状态后，UE 200的PUSCH的发送波形通过UE 200专用的RRC信令来重新配置。
备选地，UE 200用于发送随机接入消息3和/或后续的PUSCH的发送波形是预先规定的。在UE 200进入RRC连接状态后，UE 200的PUSCH的发送波形通过UE 200专用的RRC信令来重新配置。
备选地，可以通过向基站发送随机接入消息1来确定UE 200的上行传输的发送波形。
备选地，用于UE 200的上行传输的各个资源池中的资源在进行上行发 送时所采用的发送波形是预先确定的。
下面，通过若干具体实施例来描述基站100和UE 200的操作。
实施例1
在此实施例中，基站100利用物理层信令来配置或区分UE发送物理上行信道所采用的波形。
方式一
基站100的配置单元110可以通过下行控制信息DCI动态地指示UE发送物理上行信道所采用的波形。该物理上行信道主要指物理上行共享信道(PUSCH：Physical Uplink Sharing Channel)。PUSCH是指LTE/LTE-A规范中的物理上行共享信道，或NR定义的用于承载UE上行数据和/或信令的物理上行信道。
UE 200发送上行数据和/或信令是通过物理下行控制信道PDCCH来调度的。PDCCH是指LTE/LTE-A规范中的物理下行控制信道或增强的物理下行控制信道，或NR定义的用于调度承载UE上行数据和/或信令的物理上行信道的物理下行控制信道。例如，在LTE/LTE-A中，DCI格式0和4可以用于调度PUSCH。在NR中，可以定义新的DCI格式用于PUSCH的调度。可以在DCI格式中定义1比特的信息字段用于指示UE发送PUSCH所采用的发送波形(例如采用DFT-S-OFDM还是CP-OFDM)。比方说，“1”表示DFT-S-OFDM，“0”表示CP-OFDM。这样，通过用于调度PUSCH的DCI就可以动态地指出所调度的PUSCH所采用的发送波形是DFT-S-OFDM还是CP-OFDM。
UE 200可以通过接收单元210来接收PDCCH中用于调度PUSCH的DCI，并通过提取单元220来提取基站100的发送单元120所发送的关于该DCI所调度的PUSCH所采用的发送波形的指示信息。随后，UE 200采用基站100所指示的发送波形(DFT-S-OFDM或CP-OFDM)发送PUSCH。
方式二
基站100可以隐式地通过为承载UE上行数据和/或信令的物理上行信道所分配的资源来动态地指示UE发送物理上行信道所采用的波形。该物理上行信道主要指物理上行共享信道PUSCH。PUSCH是指LTE/LTE-A规范中的物理上行共享信道，或NR定义的用于承载UE上行数据和/或信令的 物理上行信道。
UE 200发送的上行数据和/或信令是通过物理下行控制信道PDCCH来调度的。PDCCH是指LTE/LTE-A规范中的物理下行控制信道或增强的物理下行控制信道，或NR定义的用于调度承载UE上行数据和/或信令的物理上行信道的物理下行控制信道。在LTE/LTE-A中，基站100通过DCI格式0和4为PUSCH分配资源。在NR中，可以定义新的DCI格式为PUSCH分配资源。分配的资源以资源块RB或资源块对来表述。对于LTE/LTE-A而言，资源块是指时频二维的一个区域，即在频域上的连续12个子载波以及时域上的7个连续的OFDM符号；而一个资源块对含有2个资源块，即在频域上的连续12个子载波以及时域上的14个连续的OFDM符号。对NR而言，所述资源块可以指NR标准中定义的资源分配单位。
基站100通过公共的RRC信令在上行系统带宽内为不同的上行发送波形配置不同的工作频带。例如：上行系统带宽为100个RB，基站100将0至49号RBs配置为DFT-S-OFDM发送波形，而将50至99号RBs配置为CP-OFDM发送波形。上述公共的RRC信令可以是主信息块(MIB：Master Information Block)和/或系统信息块(SIB：System information Block)和/或NR中定义的其它的公共RRC信令。
基站100通过PDCCH为PUSCH分配资源，通过所分配的资源可以隐式地告诉UE所调度到的PUSCH所采用的发送波形。例如：基站100为PUSCH分配的资源位于0至49号资源块之间，则隐式地告知UE将采用DFT-S-OFDM波形发送PUSCH，否则，如果基站100为PUSCH分配的资源位于50至99号资源块之间，则隐式地告知UE将采用CP-OFDM波形发送PUSCH。
UE 200的接收单元210通过公共的RRC信令接收eNB在上行系统带宽内为不同的上行发送波形配置不同的工作频带的配置信息。例如：上行系统带宽为100个RBs，eNB将0至49号RBs配置为DFT-S-OFDM发送波形，而将50至99号RBs配置为CP-OFDM发送波形。上述公共的RRC信令可以是主信息块(MIB：Master Information Block)和/或系统信息块(SIB：System information Block)和/或NR中定义的其它的公共RRC信令。
UE 200通过接收PDCCH，得到基站100为其PUSCH所分配的资源，UE 200由所分配到的资源可以隐式地得知本次发送PUSCH将采用的发送 波形。例如：UE 200得到基站100为PUSCH所分配到的资源位于0至49号资源块之间，则隐式地得知本次发送PUSCH将采用DFT-S-OFDM波形发送，否则，如果UE 200得到基站100为PUSCH分配的资源位于50至99号资源块之间，则隐式地得知本次发送PUSCH将采用CP-OFDM波形发送。
实施例2
在此实施例中，基站100通过MAC RAR设置随机接入消息3(msg3)及其后续物理上行共享信道PUSCH的发送波形。
在UE 200进入RRC连接状态后，基站100可通过UE 200专用的RRC信令重配PUSCH的发送波形。PUSCH指LTE/LTE-A规范中的物理上行共享信道，或NR定义的用于承载UE 200上行数据和/或信令的物理上行信道。
UE 200由空闲状态进入RRC连接状态，需要进行随机接入的过程。随机接入过程主要由消息1(msg1)、消息2(msg2)、消息3(msg3)和消息4(msg4)组成。msg1是UE 200在上行随机接入信道上发送随机接入的前导信号，msg2是基站100在下行链路上发送随机接入响应消息，msg3是UE 200在上行链路上第一个由基站100调度的上行传输，msg3消息由PUSCH承载。msg4是基站100在下行链路上发送的消息，用于解决随机接入过程的不同UE 200间的冲突问题。
由上述可知，msg3是UE 200由空闲状态进入RRC连接状态过程中的第一个由基站100调度的上行传输。基站100接收msg3前需要知道UE 200发送msg3所采用的发送波形(例如是用DFT-S-OFDM发送还是用CP-OFDM发送)。基站100可以在MAC RAR的上行调度许可(UL-grant)中设置1比特的信息字段来指示UE 200发送msg3和/或其后续的PUSCH所采用的发送波形。例如，“1”指DFT-S-OFDM，“0”指CP-OFDM。备选地，可在随机接入响应的消息头(或消息子头)中增加1比特的信息字段来指示UE 200发送msg3所采用的发送波形。例如，“1”指DFT-S-OFDM，“0”指CP-OFDM。
在UE 200进入RRC连接状态后，基站100可以根据UE 200的信道状况和/或网络的流量和/或其它影响UE 200上行发送波形的因素，通过UE200专用的RRC信令重新配置UE 200的上行发送波形。
以UE 200进入初始接入过程为例。在UE 200进入RRC连接状态前，基站100通过MAC RAR的UL-grant来配置UE 200发送msg3和/或其后PUSCH的发送波形。在UE 200进入RRC连接状态后，基站100判断是否需要重新配置UE 200PUSCH的发送波形。如果需要，则通过UE 200专用的RRC信令重新配置PUSCH的发送波形；如果不需要，基站100将不会重配UE 200PUSCH的发送波形，即UE 200将继续采用MAC RAR所配置的发送波形发送UE 200的PUSCH。
备选地，基站100可以只通过MAC RAR设置随机接入消息3(msg3)及其后续所有物理上行共享信道PUSCH的发送波形，而不会在UE 200进入RRC连接状态后通过UE 200专用的RRC信令重新配置UE 200PUSCH的发送波形。
备选地，预先规定(或定义)UE 200在进入RRC连接状态前，采用某一种固定的发送波形发送msg3和/或其后续的PUSCH。例如，在UE 200进入RRC连接状态前，预先规定只采用DFT-SOFDM波形来发送msg3和/或其后续的PUSCH。而在UE 200进入RRC连接状态后，基站100可以根据UE 200的信道状况和/或网络的流量和/或其它影响UE 200上行发送波形的因素，通过UE 200专用的RRC信令重新配置UE 200的上行发送波形。
UE 200通过MAC RAR获取随机接入消息3(msg3)及其后续物理上行共享信道PUSCH的发送波形的配置信息。在UE 200进入RRC连接状态后，UE 200通过专用的RRC信令获取关于PUSCH发送波形的配置信息。PUSCH指LTE/LTE-A规范中的物理上行共享信道，或NR定义的用于承载UE 200上行数据和/或信令的物理上行信道。
UE 200由空闲状态进入RRC连接状态，需要进行随机接入的过程。随机接入过程主要由消息1(msg1)、消息2(msg2)、消息3(msg3)和消息4(msg4)组成。msg1是UE 200在上行随机接入信道上发送随机接入的前导信号，msg2是基站100在下行链路上发送随机接入响应消息，msg3是UE 200在上行链路上第一个由基站100调度的上行传输，msg3消息由PUSCH承载。msg4是基站100在下行链路上发送的消息，用于解决随机接入过程不同的UE 200间的冲突问题。
由上述可知，msg3是UE 200由空闲状态进入RRC连接状态过程中的第一个由基站100调度的上行传输。UE 200发送msg3前需要知道UE 200 该采用哪种波形发送msg3(例如是用DFT-S-OFDM发送还是用CP-OFDM发送)。UE 200通过接收基站100在MAC RAR的上行调度许可(UL-grant)中设置1比特的信息字段来获取UE 200发送msg3和/或其后续的PUSCH所采用的发送波形。例如，接收到的该信息域为“1”则表示UE 200须采用DFT-S-OFDM波形发送msg3和/或其后续的PUSCH，如果接收到的该信息字段为“0”则表示UE 200须采用CP-OFDM波形发送msg3和/或其后续的PUSCH。
备选地，UE 200可通过接收基站100在随机接入响应的消息头(或消息子头)中配置的1比特信息字段来获取UE 200发送msg3和/或其后续的PUSCH所采用的发送波形。例如，接收到的该信息字段为“1”则表示UE200须采用DFT-S-OFDM波形发送msg3和/或其后续的PUSCH，如果接收到的该信息字段为“0”则表示UE 200须采用CP-OFDM波形发送msg3和/或其后续的PUSCH。
在UE 200进入RRC连接状态后，UE 200可以通过专用的RRC信令接收基站100对UE 200上行发送波形的重配信息，以获取UE 200发送PUSCH所需采用的发送波形。
备选地，UE 200可以只通过MAC RAR获取基站100为UE 200所配置的用于发送随机接入消息3(msg3)和/或其后续所有物理上行共享信道PUSCH的发送波形的配置信息，而不会在进入RRC连接状态后通过UE 200专用的RRC信令获取UE 200的PUSCH发送波形的重配置信息。
备选地，可以预先规定(或定义)UE 200在进入RRC连接状态前，采用某一种固定的发送波形发送msg3和/或其后续的PUSCH。例如，在UE 200进入RRC连接状态前，预先规定只采用DFT-SOFDM波形来发送msg3和/或其后续的PUSCH，而在UE 200进入RRC连接状态后，UE 200可以通过UE 200专用的RRC信令获取UE 200的PUSCH发送波形的重配置信息。
实施例3
在此实施例中，由UE 200来选择其用于msg3和/或其后续的PUSCH的发送波形，并通过msg1的前导信号(preamble)来通知基站100。
如上文指出，UE 200由空闲状态进入RRC连接状态，需要进行随机接 入的过程。随机接入过程主要由消息1(msg1)、消息2(msg2)、消息3(msg3)和消息4(msg4)组成。msg1是UE 200在上行随机接入信道上发送随机接入的前导信号，msg2是基站100在下行链路上发送随机接入响应消息，msg3是UE 200在上行链路上第一个由基站100调度的上行传输，msg3消息由PUSCH承载。msg4是基站100在下行链路上发送的消息，用于解决随机接入过程不同UE 200间的冲突问题。
由上述可知，msg3是UE 200由空闲状态进入RRC连接状态过程中的第一个由基站100调度的上行传输。基站100接收msg3前需要知道UE 200发送msg3所采用的发送波形(例如是用DFT-S-OFDM发送还是用CP-OFDM发送)。UE 200可以通过msg1的前导信号来通知基站100其发送msg3和/或后续的PUSCH所采用的发送波形。例如：在标准中，可以将preamble分为2个preamble组。其中1组preamble(组1)用于指示UE 200将采用DFT-S-OFDM波形发送msg3和/或后续的PUSCH。而用另外1组preamble(组2)用于指示UE 200将采用CP-OFDM波形发送msg3和/或后续的PUSCH。如果UE 200想采用DFT-S-OFDM波形发送msg3和/或后续的PUSCH，则UE 200从组1中随机选择一个preamble进行msg1的发送；如果UE 200想采用CP-OFDM波形发送msg3和/或后续的PUSCH，则UE 200从组2中随机选择一个preamble进行msg1的发送。
在UE 200进入RRC连接状态后，基站100可以根据UE 200的信道状况和/或网络的流量和/或其它影响UE 200上行发送波形的因素，通过UE 200专用的RRC信令重新配置UE 200的上行发送波形。
备选地，UE 200可以只通过preamble来选择用于发送随机接入消息3(msg3)和/或后续所有物理上行共享信道PUSCH的发送波形，而不会在UE 200进入RRC连接状态后再通过基站100由UE 200专用的RRC信令重新配置UE 200PUSCH的发送波形。
基站100通过检测msg1的preamble来获取UE 200用于msg3和/或其后续的PUSCH的发送波形信息。所述PUSCH指LTE/LTE-A规范中的物理上行共享信道，或NR定义的用于承载UE 200上行数据和/或信令的物理上行信道。
UE 200由空闲状态进入RRC连接状态，需要进行随机接入的过程。随机接入主要由消息1(msg1)、消息2(msg2)、消息3(msg3)和消息4(msg4) 组成。msg1是UE 200在上行随机接入信道上发送随机接入的前导信号，msg2是基站100在下行链路上发送随机接入响应消息，msg3是UE 200在上行链路上第一个由基站100调度的上行传输，msg3消息由PUSCH承载。msg4是基站100在下行链路上发送的消息，用于解决随机接入过程不同UE 200间的冲突问题。
由上述可知，msg3是UE 200由空闲状态进入RRC连接状态过程中的第一个由基站100调度的上行传输。基站100接收msg3前需要知道UE 200发送msg3所采用的发送波形(例如是用DFT-S-OFDM发送还是用CP-OFDM发送)。基站100可以通过检测msg1的前导信号(preamble)来获取UE 200用于发送msg3和/或后续的PUSCH所采用的发送波形信息。例如：在标准中，可以将preamble分为2个preamble组。其中1组preamble(组1)用于指示UE 200将采用DFT-S-OFDM波形发送msg3和/或后续的PUSCH。而用另外1组preamble(组2)用于指示UE 200将采用CP-OFDM波形发送msg3和/或后续的PUSCH。如果基站100在组1中检测到UE 200发送的preamble，则基站100知道该UE 200将采用DFT-S-OFDM波形发送msg3和/或后续的PUSCH；如果基站100在组2中检测到UE 200发送的preamble，则基站100知道该UE 200将采用CP-OFDM波形发送msg3和/或后续的PUSCH。
在UE 200进入RRC连接状态后，UE 200可以通过UE 200专用的RRC信令获取UE 200的PUSCH发送波形的重置信息。
备选地，基站100可以只通过检测preamble来获取UE 200用于发送随机接入消息3(msg3)和/或后续所有物理上行共享信道PUSCH的发送波形信息。而不会在UE 200进入RRC连接状态后再通过基站100由UE 200专用的RRC信令重新配置UE 200PUSCH的发送波形。
实施例4
在本实施例中，主要解决无授权上行传输的UE 200的上行发送波形的确定。
无授权上行传输方式是由UE 200随机选择上行传输资源或采用基站100预先配置的资源直接发送上行数据，而不需要基站100的调度。甚至， UE 200不需要执行随机接入过程。这种传输方式一般适用于上行小数据的发送。即，一旦UE 200有上行数据需要发送，而且，该数据包小于某一阈值时，则UE 200将直接选择上行资源进行上行数据的发送，不需要请求基站100的调度。
无授权上行传输方式的实现是基于资源池进行的。无授权上行传输的上行发送资源池可以是基于竞争的资源池，也可以是非竞争的资源池。基于竞争的资源池用于UE 200从该资源池中随机选择上行发送资源用于UE200上行数据的发送。而非竞争的资源池用于基站从该资源池中为UE 200预先配置用于UE 200发送上行数据的上行资源。
对于无授权上行传输方式，可以基于资源池预先定义资源池中的资源在进行上行发送时所采用的发送波形。例如，预先定义4个资源池：1号资源池、2号资源池、3号资源池和4号资源池。1和2号资源池为基于竞争的资源池；3和4号资源池为基于非竞争的资源池。1和3号资源池中的资源采用DFT-S-OFDM波形来发送UE 200的上行数据和/或信令；2和4号资源池中的资源采用CP-OFDM波形来发送UE 200的上行数据和/或信令。
这样，当UE 200想采用DFT-S-OFDM波形发送上行数据和/或信令时，则UE 200从1号资源池中随机地选择资源进行上行数据和/或信令的发送；而当UE 200想采用CP-OFDM波形发送上行数据和/或信令时，则UE 200从2号资源池中随机地选择资源进行上行数据和/或信令的发送。当基站100想让UE 200采用DFT-S-OFDM波形发送上行数据和/或信令时，则从3号资源池中为UE 200预先配置资源用于UE 200上行数据和/或信令的发送；当基站100想让UE 200采用CP-OFDM波形发送上行数据和/或信令时，则从4号资源池中为UE 200预先配置资源用于UE 200上行数据和/或信令的发送。
当基站100想从1和3号资源池中接收UE 200的上行数据和/或信令时，则采用DFT-S-OFDM波形来接收UE 200发送的上行数据和/或信令；而当基站100从2和4号资源池中接收UE 200的上行数据和/或信令时，则采用CP-OFDM波形来接收UE 200发送的上行数据和/或信令。
如果无授权上行传输的UE 200在发送上行数据时还会在不同的物理信道上发送前导信号和/或上行控制信令，则上述无授权上行传输的上行资源池可以是前导信号资源池和/或上行控制信令资源池和/或上行数据资源池。
需要指出的是，上述4个资源池只是为了说明的方便，本领域技术人员可以理解，还可以采用其它数量的资源池来实现本申请的技术方案。
图3是示出了根据本申请一个实施例的由基站执行的方法的流程图。如图3所示，方法300在步骤S310处开始。
在步骤S320处，对用户设备UE 200用于上行传输的发送波形进行配置。
在步骤S330处，向所述UE发送与所述配置有关的信息。
在本申请中，可以采用以下任意方式来进行配置：物理层信令、媒体接入控制MAC的随机接入响应RAR消息、无线资源控制RRC信令。发送波形可以包括离散傅立叶变换-扩展-正交频分复用DFT-S-OFDM波形和循环前缀-正交频分复用CP-OFDM波形，或者其他定义的用于生成上行通信信号的其它生成方式。
备选地，可以通过物理层信令来配置UE 200用于上行传输的发送波形，所述物理层信令包括下行控制信息DCI。DCI可以包括指示UE 200的上行传输所采用的发送波形的信息，或者包括用于UE 200的上行传输的资源分配信息。
备选地，可以通过MAC RAR消息来配置UE 200用于上行传输的发送波形，所述MAC RAR消息包括上行调度许可，所述上行调度许可指示随机接入消息3和/或后续的物理上行共享信道PUSCH所采用的发送波形。进一步地，在UE 200进入RRC连接状态后，通过UE 200专用的RRC信令重新配置UE 200的PUSCH的发送波形。
备选地，可以预先规定UE 200用于发送随机接入消息3和/或后续的PUSCH的发送波形。进一步地，在UE 200进入RRC连接状态后，通过UE 200专用的RRC信令重新配置UE 200的PUSCH的发送波形。备选地，可以从用户设备UE 200接收随机接入消息1，以确定UE 200的上行传输的发送波形。备选地，可以预先确定用于UE 200的上行传输的各个资源池中的资源在进行上行发送时所采用的发送波形。
最后，方法300在步骤S340处结束。
图4是示出了根据本申请一个实施例的由用户设备执行的方法的流程图。如图4所示，方法400在步骤S410处开始。
在步骤S420处，从基站接收关于UE的上行传输的发送波形的配置信息。
在步骤S430处，从所接收的信息中提取用于UE上行传输的发送波形的配置。
在本申请中，可以采用以下任意方式来进行配置：物理层信令、媒体接入控制MAC的随机接入响应RAR消息、无线资源控制RRC信令。发送波形可以包括离散傅立叶变换-扩展-正交频分复用DFT-S-OFDM波形和循环前缀-正交频分复用CP-OFDM波形，或者其他定义的用于生成上行通信信号的其它生成方式。
备选地，UE 200用于上行传输的发送波形可以通过物理层信令来配置，所述物理层信令包括下行控制信息DCI。DCI可以包括指示UE 200的上行传输所采用的发送波形的信息，或者包括用于UE 200的上行传输的资源分配信息。
备选地，UE 200用于上行传输的发送波形可以通过MAC RAR消息来配置，所述MAC RAR消息包括上行调度许可，所述上行调度许可指示随机接入消息3和/或后续的物理上行共享信道PUSCH所采用的发送波形。进一步地，在UE 200进入RRC连接状态后，UE 200的PUSCH的发送波形通过UE 200专用的RRC信令重新配置。
备选地，UE 200用于发送随机接入消息3和/或后续的PUSCH的发送波形可以预先规定。进一步地，在UE 200进入RRC连接状态后，通过UE200专用的RRC信令重新配置UE 200的PUSCH的发送波形。备选地，用户设备UE 200可以向基站100发送随机接入消息1，从而基站100能够根据所接收的随机接入消息1确定UE 200的上行传输的发送波形。备选地，用于UE 200的上行传输的各个资源池中的资源在进行上行发送时所采用的发送波形可以预先确定。
最后，方法400在步骤S440处结束。
上文已经结合优选实施例对本申请的方法和涉及的设备进行了描述。 本领域技术人员可以理解，上面示出的方法仅是示例性的。本申请的方法并不局限于上面示出的步骤和顺序。上面示出的网络节点和用户设备可以包括更多的模块，例如还可以包括可以开发的或者将来开发的可用于基站、或UE的模块等等。上文中示出的各种标识仅是示例性的而不是限制性的，本申请并不局限于作为这些标识的示例的具体信元。本领域技术人员根据所示实施例的教导可以进行许多变化和修改。
应该理解，本申请的上述实施例可以通过软件、硬件或者软件和硬件两者的结合来实现。例如，上述实施例中的基站和用户设备内部的各种组件可以通过多种器件来实现，这些器件包括但不限于：模拟电路器件、数字电路器件、数字信号处理(DSP)电路、可编程处理器、专用集成电路(ASIC)、现场可编程门阵列(FPGA)、可编程逻辑器件(CPLD)，等等。
在本申请中，“基站”是指具有较大发射功率和较广覆盖面积的移动通信数据和控制交换中心，包括资源分配调度、数据接收发送等功能。“用户设备”是指用户移动终端，例如包括移动电话、笔记本等可以与基站或者微基站进行无线通信的终端设备。
此外，这里所公开的本申请的实施例可以在计算机程序产品上实现。更具体地，该计算机程序产品是如下的一种产品：具有计算机可读介质，计算机可读介质上编码有计算机程序逻辑，当在计算设备上执行时，该计算机程序逻辑提供相关的操作以实现本申请的上述技术方案。当在计算系统的至少一个处理器上执行时，计算机程序逻辑使得处理器执行本申请实施例所述的操作(方法)。本申请的这种设置典型地提供为设置或编码在例如光介质(例如CD-ROM)、软盘或硬盘等的计算机可读介质上的软件、代码和/或其他数据结构、或者诸如一个或多个ROM或RAM或PROM芯片上的固件或微代码的其他介质、或一个或多个模块中的可下载的软件图像、共享数据库等。软件或固件或这种配置可安装在计算设备上，以使得计算设备中的一个或多个处理器执行本申请实施例所描述的技术方案。
此外，上述每个实施例中所使用的基站设备和终端设备的每个功能模块或各个特征可以由电路实现或执行，所述电路通常为一个或多个集成电路。设计用于执行本说明书中所描述的各个功能的电路可以包括通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)或通用集成电路、现场可编程门阵列(FPGA)或其他可编程逻辑器件、分立的门或晶体管逻辑、 或分立的硬件组件、或以上器件的任意组合。通用处理器可以是微处理器，或者所述处理器可以是现有的处理器、控制器、微控制器或状态机。上述通用处理器或每个电路可以由数字电路配置，或者可以由逻辑电路配置。此外，当由于半导体技术的进步，出现了能够替代目前的集成电路的先进技术时，本申请也可以使用利用该先进技术得到的集成电路。
尽管以上已经结合本申请的优选实施例示出了本申请，但是本领域的技术人员将会理解，在不脱离本申请的精神和范围的情况下，可以对本申请进行各种修改、替换和改变。因此，本申请不应由上述实施例来限定，而应由所附权利要求及其等价物来限定。
运行在根据本申请的设备上的程序可以是通过控制中央处理单元(CPU)来使计算机实现本申请的实施例功能的程序。该程序或由该程序处理的信息可以临时存储在易失性存储器(如随机存取存储器RAM)、硬盘驱动器(HDD)、非易失性存储器(如闪速存储器)、或其他存储器系统中。
用于实现本申请各实施例功能的程序可以记录在计算机可读记录介质上。可以通过使计算机系统读取记录在所述记录介质上的程序并执行这些程序来实现相应的功能。此处的所谓“计算机系统”可以是嵌入在该设备中的计算机系统，可以包括操作系统或硬件(如外围设备)。“计算机可读记录介质”可以是半导体记录介质、光学记录介质、磁性记录介质、短时动态存储程序的记录介质、或计算机可读的任何其他记录介质。
用在上述实施例中的设备的各种特征或功能模块可以通过电路(例如，单片或多片集成电路)来实现或执行。设计用于执行本说明书所描述的功能的电路可以包括通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)、或其他可编程逻辑器件、分立的门或晶体管逻辑、分立的硬件组件、或上述器件的任意组合。通用处理器可以是微处理器，也可以是任何现有的处理器、控制器、微控制器、或状态机。上述电路可以是数字电路，也可以是模拟电路。因半导体技术的进步而出现了替代现有集成电路的新的集成电路技术的情况下，本申请也可以使用这些新的集成电路技术来实现。
如上，已经参考附图对本申请的实施例进行了详细描述。但是，具体的结构并不局限于上述实施例，本申请也包括不偏离本申请主旨的任何设 计改动。另外，可以在权利要求的范围内对本申请进行多种改动，通过适当地组合不同实施例所公开的技术手段所得到的实施例也包含在本申请的技术范围内。此外，上述实施例中所描述的具有相同效果的组件可以相互替代。

Claims (40)

  1. 一种基站，包括：
    配置单元，被设置为对用户设备UE用于上行传输的发送波形进行配置；以及
    发送单元，被设置为向所述UE发送与所述配置有关的信息；
    其中，所述配置单元采用以下任意方式来进行配置：物理层信令、媒体接入控制MAC的随机接入响应RAR消息、无线资源控制RRC信令。
  2. 根据权利要求1所述的基站，其中，所述发送波形包括离散傅立叶变换-扩展-正交频分复用DFT-S-OFDM波形和循环前缀-正交频分复用CP-OFDM波形。
  3. 根据权利要求1所述的基站，其中，所述配置单元被设置为：通过物理层信令来配置UE用于上行传输的发送波形，所述物理层信令包括下行控制信息DCI。
  4. 根据权利要求3所述的基站，其中，所述下行控制信息DCI包括指示UE的上行传输所采用的发送波形的信息，或者包括用于UE的上行传输的资源分配信息。
  5. 根据权利要求1所述的基站，其中，所述配置单元被设置为：通过MAC RAR消息来配置UE用于上行传输的发送波形，所述MAC RAR消息包括上行调度许可，所述上行调度许可指示随机接入消息3和/或后续的物理上行共享信道PUSCH所采用的发送波形。
  6. 根据权利要求5所述的基站，其中，所述配置单元被设置为：当UE进入RRC连接状态后，通过UE专用的RRC信令重新配置UE的PUSCH的发送波形。
  7. 根据权利要求1所述的基站，其中，所述配置单元被设置为：预先规定UE用于发送随机接入消息3和/或后续的PUSCH的发送波形。
  8. 根据权利要求7所述的基站，其中，所述配置单元被设置为：在UE进入RRC连接状态后，通过UE专用的RRC信令重新配置UE的PUSCH的发送波形。
  9. 根据权利要求1所述的基站，其中，所述配置单元被设置为：从用户设备UE接收随机接入消息1，以确定UE的上行传输的发送波形。
  10. 根据权利要求1所述的基站，其中，所述配置单元被设置为：预先确定用于UE的上行传输的各个资源池中的资源在进行上行发送时所采用的发送波形。
  11. 一种基站中的方法，包括：
    对用户设备UE用于上行传输的发送波形进行配置；以及
    向所述UE发送与所述配置有关的信息；
    其中，采用以下任意方式来进行配置：物理层信令、媒体接入控制MAC的随机接入响应RAR消息、无线资源控制RRC信令。
  12. 根据权利要求11所述的方法，其中，所述发送波形包括离散傅立叶变换-扩展-正交频分复用DFT-S-OFDM波形和循环前缀-正交频分复用CP-OFDM波形。
  13. 根据权利要求11所述的方法，其中，通过物理层信令来配置UE用于上行传输的发送波形，所述物理层信令包括下行控制信息DCI。
  14. 根据权利要求13所述的方法，其中，所述下行控制信息DCI包括指示UE的上行传输所采用的发送波形的信息，或者包括用于UE的上行传输的资源分配信息。
  15. 根据权利要求11所述的方法，其中，通过MAC RAR消息来配置UE用于上行传输的发送波形，所述MAC RAR消息包括上行调度许可，所述上行调度许可指示随机接入消息3和/或后续的物理上行共享信道PUSCH所采用的发送波形。
  16. 根据权利要求15所述的方法，其中，当UE进入RRC连接状态后，通过UE专用的RRC信令重新配置UE的PUSCH的发送波形。
  17. 根据权利要求11所述的方法，其中，预先规定UE用于发送随机接入消息3和/或后续的PUSCH的发送波形。
  18. 根据权利要求17所述的方法，其中，在UE进入RRC连接状态后，通过UE专用的RRC信令重新配置UE的PUSCH的发送波形。
  19. 根据权利要求11所述的方法，其中，从用户设备UE接收随机接入消息1，以确定UE的上行传输的发送波形。
  20. 根据权利要求11所述的方法，其中，预先确定用于UE的上行传输的各个资源池中的资源在进行上行发送时所采用的发送波形。
  21. 一种用户设备UE，包括：
    接收单元，被设置为从基站接收关于UE的上行传输的发送波形的配置信息；以及
    提取单元，被设置为从所接收的信息中提取UE的上行传输的发送波形的配置；
    其中，所述接收单元采用以下任意方式来接收所述配置信息：物理层信令、媒体接入控制MAC的随机接入响应RAR消息、无线资源控制RRC信令。
  22. 根据权利要求21所述的UE，其中，所述发送波形包括离散傅立叶变换-扩展-正交频分复用DFT-S-OFDM波形和循环前缀-正交频分复用CP-OFDM波形。
  23. 根据权利要求21所述的UE，其中，UE用于上行传输的发送波形是通过物理层信令来配置的，所述物理层信令包括下行控制信息DCI。
  24. 根据权利要求23所述的UE，其中，所述下行控制信息DCI包括指示UE的上行传输所采用的发送波形的信息，或者包括用于UE的上行传输的资源分配信息。
  25. 根据权利要求21所述的UE，其中，UE用于上行传输的发送波形是通过MAC RAR消息来配置的，所述MAC RAR消息包括上行调度许可，所述上行调度许可指示随机接入消息3和/或后续的物理上行共享信道PUSCH所采用的发送波形。
  26. 根据权利要求25所述的UE，其中，当UE进入RRC连接状态后，UE的PUSCH的发送波形通过UE专用的RRC信令来重新配置。
  27. 根据权利要求21所述的UE，其中，UE用于发送随机接入消息3和/或后续的PUSCH的发送波形是预先规定的。
  28. 根据权利要求27所述的UE，其中，在UE进入RRC连接状态后，UE的PUSCH的发送波形通过UE专用的RRC信令来重新配置。
  29. 根据权利要求21所述的UE，其中，UE向基站发送随机接入消息1，以确定UE的上行传输的发送波形。
  30. 根据权利要求21所述的UE，其中，用于UE的上行传输的各个资源池中的资源在进行上行发送时所采用的发送波形是预先确定的。
  31. 一种用户设备UE中的方法，包括：
    从基站接收关于UE的上行传输的发送波形的配置信息；以及
    从所接收的信息中提取UE的上行传输的发送波形的配置；
    其中，采用以下任意方式来接收所述配置信息：物理层信令、媒体接入控制MAC的随机接入响应RAR消息、无线资源控制RRC信令。
  32. 根据权利要求31所述的方法，其中，所述发送波形包括离散傅立叶变换-扩展-正交频分复用DFT-S-OFDM波形和循环前缀-正交频分复用CP-OFDM波形。
  33. 根据权利要求31所述的方法，其中，UE用于上行传输的发送波形是通过物理层信令来配置的，所述物理层信令包括下行控制信息DCI。
  34. 根据权利要求33所述的方法，其中，所述下行控制信息DCI包括指示UE的上行传输所采用的发送波形的信息，或者包括用于UE的上行传输的资源分配信息。
  35. 根据权利要求31所述的方法，其中，UE用于上行传输的发送波形是通过MAC RAR消息来配置的，所述MAC RAR消息包括上行调度许可，所述上行调度许可指示随机接入消息3和/或后续的物理上行共享信道PUSCH所采用的发送波形。
  36. 根据权利要求35所述的方法，其中，当UE进入RRC连接状态后，UE的PUSCH的发送波形通过UE专用的RRC信令来重新配置。
  37. 根据权利要求31所述的方法，其中，UE用于发送随机接入消息3和/或后续的PUSCH的发送波形是预先规定的。
  38. 根据权利要求37所述的方法，其中，在UE进入RRC连接状态后，UE的PUSCH的发送波形通过UE专用的RRC信令来重新配置。
  39. 根据权利要求31所述的方法，其中，UE向基站发送随机接入消息1，以确定UE的上行传输的发送波形。
  40. 根据权利要求31所述的方法，其中，用于UE的上行传输的各个资源池中的资源在进行上行发送时所采用的发送波形是预先确定的。
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EP3537677A4 (en) 2020-07-01
MX2019005079A (es) 2019-10-02
CO2019005700A2 (es) 2019-07-31
DK3537677T3 (da) 2022-10-17
AU2017352946B2 (en) 2021-06-10
RU2731677C1 (ru) 2020-09-07
CN108023709A (zh) 2018-05-11
EP3537677A1 (en) 2019-09-11
CL2019001165A1 (es) 2019-07-05
CN108023709B (zh) 2022-03-15
AU2017352946A1 (en) 2019-06-20
AU2017352946A8 (en) 2019-08-01
US20190297619A1 (en) 2019-09-26
US11601311B2 (en) 2023-03-07

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