WO2017167264A1 - 信息的传输方法及设备 - Google Patents

信息的传输方法及设备 Download PDF

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Publication number
WO2017167264A1
WO2017167264A1 PCT/CN2017/078985 CN2017078985W WO2017167264A1 WO 2017167264 A1 WO2017167264 A1 WO 2017167264A1 CN 2017078985 W CN2017078985 W CN 2017078985W WO 2017167264 A1 WO2017167264 A1 WO 2017167264A1
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WIPO (PCT)
Prior art keywords
serving cell
subcarrier spacing
symbol
resource unit
length
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Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2017/078985
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English (en)
French (fr)
Chinese (zh)
Inventor
成艳
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP17773294.8A priority Critical patent/EP3419360A4/en
Priority to KR1020187029431A priority patent/KR20180123531A/ko
Priority to BR112018069886-5A priority patent/BR112018069886B1/pt
Priority to JP2018551198A priority patent/JP2019511879A/ja
Publication of WO2017167264A1 publication Critical patent/WO2017167264A1/zh
Priority to US16/147,858 priority patent/US10582491B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0028—Variable division
    • 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
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/26025—Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers
    • 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
    • H04L5/0058—Allocation criteria
    • H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
    • 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
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/25—Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • H04L5/0078—Timing of allocation
    • H04L5/0087—Timing of allocation when data requirements change
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the embodiments of the present application relate to communications technologies, and in particular, to a method and a device for transmitting information.
  • the fifth generation of mobile communication technology (5-Generation, 5G for short) is dedicated to supporting higher system performance, which will support a variety of different services, different deployment scenarios and different spectrum.
  • the embodiment of the present application provides a method and a device for transmitting information, and implements information transmission according to multiple sets of system parameters.
  • the application provides a method for transmitting information, including:
  • the first device determines the subcarrier spacing of the serving cell by using the first method, and determines the resource unit of the serving cell according to the subcarrier spacing of the serving cell, so that the resource unit of the serving cell is on the serving cell. Transmitting information with the second device or receiving information sent by the second device; thereby implementing information transmission according to multiple sets of system parameters.
  • the first device determines the resource unit of the serving cell according to the subcarrier spacing of the serving cell, including:
  • the first device determines a parameter of the resource unit of the serving cell according to the subcarrier spacing of the serving cell, where the parameter of the resource unit includes at least one of the following: a length of the resource unit, a number of symbols included in the resource unit, and a subunit included in the resource unit.
  • the first device determines the length of the resource unit of the serving cell according to the subcarrier spacing of the serving cell, including:
  • the length of the resource unit is scaled with the subcarrier spacing, so that the symbol units included in the resource unit corresponding to different subcarrier intervals are included.
  • the number is the same.
  • the first device determines, according to the subcarrier spacing of the serving cell, the number of symbols included in the resource unit of the serving cell, including:
  • the first device determines, according to the subcarrier spacing of the serving cell, that the number of symbols included in the resource unit of the serving cell is 14, wherein the subcarrier spacing of the serving cell is a multiple of 15 kHz.
  • the method for transmitting information provided by the embodiment, by defining the number of symbols included in resource units corresponding to different subcarrier intervals, so that different system parameters are occupied by signals and/or signals in respective resource units. The position is unchanged.
  • the first device determines the number of subcarriers included in the resource unit of the serving cell according to the subcarrier spacing of the serving cell, including:
  • the first device determines, according to the subcarrier spacing of the serving cell, that the number of subcarriers included in the resource unit of the serving cell is 12, where the subcarrier spacing of the serving cell is a multiple of 15 kHz; or
  • the first device determines, according to the subcarrier spacing of the serving cell, that the number of subcarriers included in the resource unit of the serving cell is a multiple of 12.
  • the method for transmitting information provided by the embodiment when the subcarrier spacing of the serving cell takes different values, the length of the resource unit is scaled according to the difference of the subcarrier spacing, so that the symbol included by the resource unit at different subcarrier intervals The number is the same, and the number of subcarriers included in the resource unit is multiplied, so that a unified channel and signal design can be adopted in resource units corresponding to different subcarrier intervals, thereby reducing complexity; that is, multiple sets of system parameters can be shared uniformly.
  • the channel and signal design reduces complexity.
  • the first device determines, according to the subcarrier spacing of the serving cell, the effective symbol length of the symbol included in the resource unit of the serving cell, including:
  • the resource unit includes a first normal CP symbol and a second normal CP symbol
  • the first device determines, according to the subcarrier spacing of the serving cell, the cyclic prefix CP length of the symbol included in the resource unit of the serving cell, including:
  • the resource unit includes the first normal CP symbol number M1 and the second normal CP symbol number M2, and both M1 and M2 are positive integers, where the serving cell subcarrier spacing When different values are taken, the values of M1 and M2 are unchanged.
  • M1 is equal to 2 and M2 is equal to 12.
  • the symbol 0 to the symbol M1-1 in the resource unit are the first normal CP symbol, and the symbols M1 to M1+M2-1 in the resource unit are the second normal CP symbol; or
  • the symbol 0 and the symbol (M1+M2)/2 in the resource unit are the first normal CP symbols, and the remaining symbols in the resource unit except the symbol 0 and the symbol (M1+M2)/2 are the second normal CP symbols.
  • the subcarrier spacing of the serving cell belongs to the first subcarrier spacing set, and the first subcarrier spacing set includes: a first subcarrier spacing and a second subcarrier spacing, wherein the first subcarrier spacing and the first subcarrier spacing The two subcarrier spacings are all multiples of 15 kHz, and the first subcarrier spacing is less than the second subcarrier spacing;
  • the symbol 0 and the symbol (M1+M2)/2 in the resource unit are the first normal CP symbol, except for the symbol 0 and the symbol (M1+M2) in the resource unit.
  • the remaining symbols other than /2 are the second normal CP symbols;
  • the symbol 0 to the symbol M1-1 in the resource unit are the first normal CP symbol
  • the symbols M1 to M1+M2-1 in the resource unit are the second normal CP. symbol.
  • the second subcarrier spacing is twice the first subcarrier spacing.
  • the number of first normal CP symbols in the resource unit corresponding to different subcarrier spacings is the same, and the first normal CP symbol and the second normal CP symbol determined according to the embodiment
  • the GP boundary corresponding to the first subcarrier interval and the GP boundary corresponding to the second subcarrier interval can be aligned, the uplink symbol boundary corresponding to the first subcarrier interval, and the uplink symbol boundary corresponding to the second subcarrier interval are aligned and
  • the downlink symbol boundary corresponding to the one subcarrier interval is aligned with the downlink symbol boundary corresponding to the second subcarrier interval, so that the system parameter corresponding to the first subcarrier interval and the system parameter corresponding to the second subcarrier interval can coexist efficiently, and the system is improved. performance.
  • the first device determines a subcarrier spacing of the serving cell, including:
  • the first device determines a subcarrier spacing corresponding to the first bandwidth portion of the serving cell and determines a subcarrier spacing corresponding to the second bandwidth portion of the serving cell, where the subcarrier spacing corresponding to the first bandwidth portion is the first subcarrier spacing, The subcarrier spacing corresponding to the two bandwidth portions is the second subcarrier spacing.
  • the first device determines the length of the resource unit of the serving cell according to the subcarrier spacing of the serving cell, including:
  • the length of the resource unit is scaled with the subcarrier spacing, so that the symbol units included in the resource unit corresponding to different subcarrier intervals are included.
  • the number is the same.
  • the first device determines, according to the subcarrier spacing of the serving cell, the number of symbols included in the resource unit of the serving cell, including:
  • the first device determines, according to the subcarrier spacing of the serving cell, that the number of symbols included in the resource unit of the serving cell is 16, wherein the subcarrier spacing of the serving cell is a multiple of 17.5 kHz.
  • the method for transmitting information provided by the embodiment, by defining resource units corresponding to different subcarrier intervals The number of symbols included is unchanged, so that different system parameters do not change the resource positions occupied by signals and/or signals in the respective resource units.
  • the first device determines the number of subcarriers included in the resource unit of the serving cell according to the subcarrier spacing of the serving cell, including:
  • the first device determines, according to the subcarrier spacing of the serving cell, that the number of subcarriers included in the resource unit of the serving cell is 16, wherein the subcarrier spacing of the serving cell is a multiple of 17.5 kHz; or
  • the first device determines, according to the subcarrier spacing of the serving cell, that the number of subcarriers included in the resource unit of the serving cell is a multiple of 16.
  • the method for transmitting information provided by the embodiment when the subcarrier spacing of the serving cell takes different values, the length of the resource unit is scaled according to the difference of the subcarrier spacing, so that the symbol included by the resource unit at different subcarrier intervals The number is the same, and the number of subcarriers included in the resource unit is multiplied, so that a unified channel and signal design can be adopted in resource units corresponding to different subcarrier intervals, thereby reducing complexity; that is, multiple sets of system parameters can be shared uniformly.
  • the channel and signal design reduces complexity.
  • the first device determines, according to the subcarrier spacing of the serving cell, the effective symbol length of the symbol included in the resource unit of the serving cell, including:
  • the T symbol is equal to 1/17500 seconds.
  • the first device determines, according to the subcarrier spacing of the serving cell, the cyclic prefix CP length of the symbol included in the resource unit of the serving cell, including:
  • the T CP is equal to 5.36 microseconds.
  • the channel and/or signal occupying the resource location in the resource unit of the serving cell are the same;
  • the resource locations occupied by the channel and/or the signal in the resource unit of the serving cell are the same.
  • the different subcarrier spacings included in the subcarrier spacing set are all multiples of 15 kHz, or the different subcarrier spacings included in the subcarrier spacing set are multiples of 17.5 kHz.
  • the set of subcarrier spacings corresponds to a particular set of carrier frequencies, wherein different sets of subcarrier spacings correspond to different sets of carrier frequencies.
  • the length of the resource unit is the length of the subframe.
  • the first device determines a subcarrier spacing of the serving cell, including:
  • the first device determines a carrier frequency of the serving cell, and determines a subcarrier spacing of the serving cell according to the carrier frequency.
  • the first device determines a subcarrier spacing of the serving cell, including:
  • the first device determines a subcarrier spacing of the serving cell according to the set of subcarrier spacing corresponding to the serving cell.
  • the embodiment of the present application provides a device, where the device is a first device, and the device includes:
  • a processing unit configured to determine a subcarrier spacing of the serving cell, and determine a resource unit of the serving cell according to the subcarrier spacing of the serving cell;
  • transceiver unit configured to send information to the second device or receive information sent by the second device on the serving cell according to the resource unit of the serving cell determined by the processing unit.
  • the processing unit is specifically configured to: determine a parameter of a resource unit of the serving cell according to a subcarrier interval of the serving cell, where the parameter of the resource unit includes at least one of the following: a length of the resource unit, and the resource unit includes The number of symbols, the number of subcarriers included in the resource unit, the effective symbol length of the symbols included in the resource unit, and the cyclic prefix CP length of the symbols included in the resource unit.
  • the processing unit is specifically configured to determine, according to the subcarrier spacing of the serving cell, that the number of symbols included in the resource unit of the serving cell is 14, wherein the subcarrier spacing of the serving cell is a multiple of 15 kHz.
  • the processing unit is specifically used to:
  • Determining, according to the subcarrier spacing of the serving cell, the number of subcarriers included in the resource unit of the serving cell is 12, wherein the subcarrier spacing of the serving cell is a multiple of 15 kHz; or
  • the number of subcarriers included in the resource unit of the serving cell is determined to be a multiple of 12 according to the subcarrier spacing of the serving cell.
  • the resource unit includes a first normal CP symbol and a second normal CP symbol
  • the processing unit is specifically configured to:
  • the resource unit includes the first normal CP symbol number M1 and the second normal CP symbol number M2, and both M1 and M2 are positive integers, where the serving cell subcarrier spacing When different values are taken, the values of M1 and M2 are unchanged.
  • M1 is equal to 2 and M2 is equal to 12.
  • the symbol 0 to the symbol M1-1 in the resource unit are the first normal CP symbol, and the symbols M1 to M1+M2-1 in the resource unit are the second normal CP symbol; or
  • the symbol 0 and the symbol (M1+M2)/2 in the resource unit are the first normal CP symbols, and the remaining symbols in the resource unit except the symbol 0 and the symbol (M1+M2)/2 are the second normal CP symbols.
  • the subcarrier spacing of the serving cell belongs to the first subcarrier spacing set, and the first subcarrier spacing set includes: a first subcarrier spacing and a second subcarrier spacing, wherein the first subcarrier spacing and the first subcarrier spacing The two subcarrier spacings are all multiples of 15 kHz, and the first subcarrier spacing is less than the second subcarrier spacing;
  • the symbol 0 and the symbol (M1+M2)/2 in the resource unit are the first normal CP symbol, except for the symbol 0 and the symbol (M1+M2) in the resource unit.
  • the remaining symbols other than /2 are the second normal CP symbols;
  • the symbol 0 to the symbol M1-1 in the resource unit are the first normal CP symbol
  • the symbols M1 to M1+M2-1 in the resource unit are the second normal CP. symbol.
  • the second subcarrier spacing is twice the first subcarrier spacing.
  • the processing unit is specifically configured to: determine a subcarrier spacing corresponding to the first bandwidth portion in the serving cell, and determine a subcarrier spacing corresponding to the second bandwidth portion in the serving cell, where the first bandwidth portion corresponds to the subcarrier.
  • the carrier spacing is the first subcarrier spacing
  • the corresponding subcarrier spacing of the second bandwidth portion is the second subcarrier spacing.
  • the processing unit is specifically configured to determine, according to the subcarrier spacing of the serving cell, that the number of symbols included in the resource unit of the serving cell is 16, wherein the subcarrier spacing of the serving cell is a multiple of 17.5 kHz.
  • the processing unit is specifically used to:
  • the number of subcarriers included in the resource unit of the serving cell is determined to be a multiple of 16 according to the subcarrier spacing of the serving cell.
  • the T symbol is equal to 1/17500 seconds.
  • the T CP is equal to 5.36 microseconds.
  • the channel and/or signal occupying the resource location in the resource unit of the serving cell are the same;
  • the resource locations occupied by the channel and/or the signal in the resource unit of the serving cell are the same.
  • the different subcarrier spacings included in the subcarrier spacing set are all multiples of 15 kHz, or the different subcarrier spacings included in the subcarrier spacing set are multiples of 17.5 kHz.
  • the set of subcarrier spacings corresponds to a particular set of carrier frequencies, wherein different sets of subcarrier spacings correspond to different sets of carrier frequencies.
  • the length of the resource unit is the length of the subframe.
  • Embodiment 1 is a schematic flowchart of Embodiment 1 of a method for transmitting information of the present application
  • FIG. 2 is a schematic diagram 1 of a first normal CP symbol and a second normal CP symbol
  • FIG. 3 is a second schematic diagram of a distribution of a first normal CP symbol and a second normal CP symbol
  • Embodiment 4 is a schematic structural diagram of Embodiment 1 of an apparatus according to the present application.
  • FIG. 5 is a schematic structural diagram of Embodiment 2 of the device of the present application.
  • the user equipment involved in the embodiment of the present application may be a wireless terminal such as a mobile phone or a tablet computer, and the wireless terminal includes a device for providing voice and/or data services to the user.
  • the device may be a handheld device with wireless connection function.
  • the wireless terminal can also communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network), for example, the wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" "telephone” and a computer having a mobile terminal, the computer having the mobile terminal can be portable, pocket-sized, handheld, built-in or on-board Mobile devices that can interact with the core network for voice and/or data.
  • a radio access network eg, RAN, Radio Access Network
  • PCS Personal Communication Service
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • a wireless terminal may also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, or an access point.
  • Remote Terminal Access Terminal, User Terminal, User Agent, User Device, or User Equipment.
  • the user equipment in the embodiment of the present application may also be a vehicle or the like in V2X (Vehicle to X) communication.
  • V2X Vehicle to X
  • the network device involved in the embodiment of the present application may be any device in the cellular communication network, for example, a base station (for example, an access point), where the base station may refer to one or more fans on the air interface in the access network.
  • a device that communicates with a wireless terminal can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station in LTE (NodeB or eNB or e-NodeB, evolutional) Node B), the embodiment of the present application is not limited.
  • the network device in the embodiment of the present application may also be a terminal device in a D2D (Device to Device) communication, similar to the user equipment in the embodiment of the present application; in a V2X (Vehicle to X) communication, it may also be a vehicle or the like.
  • D2D Device to Device
  • V2X Vehicle to X
  • the first device and the second device that are involved in the present application may be a network device or a user device; wherein, when the first device is a network device, the second device involved in the present application is a user device; When the device is a user device, the second device involved in this application is a network device.
  • the method for transmitting information provided by the embodiment of the present application can be applied to a user equipment and a network device in a 5G communication system, and is also applicable to a user equipment in a Long Term Evolution (LTE) communication system and an LTE evolution communication system.
  • a network device wherein the network device as referred to herein may include at least one serving cell.
  • the method for transmitting information according to the embodiment of the present application includes, but is not limited to, the foregoing application scenario, and the information transmission method provided by the embodiment of the present application may be used as long as the scenario in which the serving cell supports multiple sets of system parameters is involved.
  • 5G is committed to supporting higher system performance, which will support a variety of different services, different deployment scenarios and different spectrum.
  • a) different services include: enhanced mobile broadband (eMBB), machine type communication (MTC), ultra-reliable and low latency communications (URLLC) , Multimedia Broadcast Multicast Service (MBMS) and positioning
  • a) Different deployment scenarios include: indoor hotspot, dense urban, suburban, urban macro and (Urban Macro) High-speed rail scenes, etc.
  • 5G will support a spectrum range up to 100 GHz, with 6 GHz and below being the main band and 6 GHz or more as the auxiliary band.
  • the application scenarios of different services, different deployment scenarios, and different spectrums have different requirements on system parameters (such as subcarrier spacing, resource unit or resource unit parameters, etc.), that is, 5G needs to support multiple sets of system parameters (numerology);
  • the 5G can support different services, different deployment scenarios, and different spectrums in a high-performance manner. How to transmit information according to multiple sets of system parameters in a 5G communication system is a problem to be solved.
  • the first device determines the subcarrier spacing of the serving cell by using the subcarrier spacing of the serving cell, and determines the serving cell according to the subcarrier spacing of the serving cell.
  • a resource unit configured to send information to the second device or receive information sent by the second device according to the determined resource unit; it can be seen that the first device can obtain multiple sets of system parameters according to the application scenario.
  • the system parameters (such as subcarrier spacing, resource unit, and the like) corresponding to the application scenario are determined, and information transmission is performed according to the system parameter.
  • FIG. 1 is a schematic flowchart diagram of Embodiment 1 of a method for transmitting information according to the present application.
  • the embodiment of the present application can be applied to a single carrier and/or a multi-carrier system. As shown in FIG. 1 , the method in this embodiment may include:
  • the first device determines a subcarrier spacing of the serving cell.
  • the first device determines a subcarrier spacing of the serving cell, so as to subsequently determine a resource unit of the serving cell according to the subcarrier spacing.
  • the serving cell in the embodiment of the present application may refer to a serving cell configured by the network side device to the user equipment, and may also be a serving cell serving the user equipment, and may also be a serving cell accessed by the user equipment.
  • the serving cell in the embodiment of the present application may be a primary serving cell of the user equipment, or may be a secondary serving cell of the user equipment.
  • the step may be specifically: the network device determines a sub-carrier spacing of the serving cell of the user equipment; when the first device is the user equipment, the step may be specifically: the user equipment determines The subcarrier spacing of the serving cell.
  • the first device may determine a subcarrier spacing of the serving cell according to a correspondence between the carrier frequency and the subcarrier spacing, or a correspondence between the carrier frequency set and the subcarrier spacing set, and the like;
  • the sub-carrier spacing of the serving cell may also be determined in other manners, which is not limited in this embodiment of the present application.
  • the subcarrier spacing of the serving cell may be a multiple of 15 kHz, a multiple of 17.5 kHz, or a multiple of 16.875 kHz; of course, the subcarrier spacing of the serving cell may also be other values, which is in the embodiment of the present application. This is not a limitation.
  • the first device determines, according to a subcarrier spacing of the serving cell, a resource unit of the serving cell.
  • the first device determines, according to the subcarrier spacing of the serving cell, a resource unit corresponding to the subcarrier spacing; optionally, the first device according to the subcarrier spacing of the serving cell, Determining a parameter of the resource unit of the serving cell, and determining a resource unit of the serving cell according to the parameter of the resource unit, where the parameter of the resource unit includes at least one of the following: a length of the resource unit, and the resource unit includes The number of symbols, the number of subcarriers included in the resource unit, the effective symbol length of the symbols included in the resource unit, and the Cyclic Prefix (CP) length of the symbols included in the resource unit.
  • the parameter of the resource unit may further include other information, which is not limited in this embodiment of the present application.
  • a resource unit may refer to a specific time length and a time-frequency resource in a specific frequency domain width.
  • the first device sends information to the second device or receives information sent by the second device according to the resource unit of the serving cell.
  • the first device sends information to the second device or receives information sent by the second device on the serving cell according to the resource unit of the serving cell determined by step S102.
  • the step may be that the network device sends information to the user equipment on the serving cell according to the resource unit of the serving cell, optionally, the information may include Following to One of the following: the downlink data, the downlink control information, and the downlink reference signal; or, the step may further receive, by the network device, the information sent by the user equipment on the serving cell according to the resource unit of the serving cell, optionally The information may include at least one of the following: uplink data and uplink control information.
  • the step may be that the user equipment sends information to the network device on the serving cell according to the resource unit of the serving cell, optionally, the information may include At least one of the following: uplink data and uplink control information; or, the step may further receive, by the user equipment, information sent by the network device on the serving cell according to the resource unit of the serving cell, optionally, the information may be The at least one of the following includes downlink data, downlink control information, and a downlink reference signal.
  • the information transmitted by the first device and the second device does not only include the content described in the foregoing section, but may also include other content, which is not limited in the embodiment of the present application.
  • the sub-carrier spacing of the serving cell may be different for different services, different deployment scenarios, and different spectrum application scenarios.
  • the first device determines the sub-carrier spacing of the serving cell first, and according to the sub-carrier of the serving cell. a carrier interval, where the resource unit of the serving cell is determined; further, the first device sends information to the second device or receives information sent by the second device according to the resource unit of the serving cell; It realizes information transmission according to multiple sets of system parameters.
  • step S101 can be implemented in at least the following manner:
  • the first implementation manner is: the first device determines a carrier frequency of the serving cell, and determines a subcarrier spacing of the serving cell according to the carrier frequency.
  • the first device determines, according to a preset correspondence between the carrier frequency and the subcarrier spacing, the carrier frequency of the serving cell.
  • Subcarrier spacing For example, the preset carrier frequency and the subcarrier spacing may be: when the carrier frequency is less than or equal to 3 GHz, the subcarrier spacing is equal to 15 kHz; or when the carrier frequency is greater than 3 GHz and less than or equal to 6 GHz, the subcarrier The interval is equal to 30 kHz.
  • the first device determines a carrier frequency set corresponding to the serving cell, and determines a subcarrier spacing set corresponding to the serving cell according to the carrier frequency set;
  • the first device determines a subcarrier spacing of the serving cell according to a subcarrier spacing set corresponding to the serving cell.
  • the first device when the first device determines the carrier frequency set corresponding to the serving cell, the first device determines the serving cell according to the preset correspondence between the preset carrier frequency set and the subcarrier interval set. a set of subcarrier spacings corresponding to the set of carrier frequencies, and further determining a subcarrier spacing of the serving cell according to the set of subcarrier spacings.
  • the correspondence between the carrier frequency set and the subcarrier spacing set may be:
  • the subcarrier spacing set corresponding to the serving cell includes a subcarrier interval 1 and a subcarrier interval 2, and optionally, the subcarrier interval 1 is 15 kHz, the subcarrier spacing 2 is 30 kHz; or,
  • the subcarrier spacing set corresponding to the serving cell includes a subcarrier spacing 2 and a subcarrier spacing 3.
  • the subcarrier spacing 2 is 30 kHz
  • the subcarrier spacing 3 is 60 kHz; or
  • the subcarrier spacing set corresponding to the serving cell includes a subcarrier interval 4 and a subcarrier interval 5, optionally, the subcarrier spacing 4 is 60 kHz, and the subcarrier spacing 5 is 120 kHz; or,
  • the subcarrier spacing set corresponding to the serving cell includes a subcarrier interval 6 and a subcarrier interval 7, and optionally, the subcarrier interval 6 is 120 kHz.
  • the subcarrier spacing 7 is 240 kHz.
  • the foregoing relationship between the carrier frequency set and the sub-carrier spacing set is only an example.
  • the correspondence between the carrier frequency set and the sub-carrier spacing set may be other forms. There is no limit to this.
  • the 5G communication system needs to meet different services, different deployment scenarios, and different spectrums. If different services and different scenarios are supported on the same serving cell, different system parameters must be supported to coexist on the same service cell.
  • the different bandwidth portions of the cell support different subcarrier spacings; correspondingly, the first device determines the subcarrier spacing corresponding to different bandwidth portions of the serving cell, respectively.
  • the subcarrier spacing of the serving cell belongs to a first subcarrier spacing set, and the first subcarrier spacing set includes: a first subcarrier spacing and a second subcarrier spacing, where the first subcarrier The interval between the interval and the second subcarrier is both a multiple of 15 kHz, and the first subcarrier spacing is smaller than the second subcarrier interval; optionally, the second subcarrier spacing is the first subcarrier 2 times the interval.
  • the step S101 may include: determining, by the first device, a subcarrier spacing corresponding to the first bandwidth portion in the serving cell and determining a subcarrier spacing corresponding to the second bandwidth portion in the serving cell, where the first The subcarrier spacing corresponding to the bandwidth portion is the first subcarrier spacing, and the subcarrier spacing corresponding to the second bandwidth portion is the second subcarrier spacing; the frequency resource occupied by the first bandwidth portion and the second bandwidth portion occupy The frequency resources are different. Since different subcarrier spacings are deployed in different bandwidth portions of the serving cell, the more matched subcarrier spacing can be utilized to simultaneously serve users in different application scenarios, thereby improving system performance.
  • the corresponding first subcarrier spacing set may include 15 kHz and 30 kHz, wherein 30 kHz can be used to meet a high speed scene of up to 500 km/h, and 15 kHz can be used for delay extension up to about 5us scene.
  • the first device may determine a parameter of the resource unit of the serving cell according to a subcarrier interval of the serving cell, and determine the service according to the parameter of the resource unit.
  • a resource unit of the cell where the parameter of the resource unit includes at least one of the following: a length of the resource unit, a number of symbols included in the resource unit, a number of subcarriers included in the resource unit, and a valid symbol length of the symbol included in the resource unit.
  • the cyclic prefix CP length of the symbol included in the resource unit is a resource unit of the cell, where the parameter of the resource unit includes at least one of the following: a length of the resource unit, a number of symbols included in the resource unit, a number of subcarriers included in the resource unit, and a valid symbol length of the symbol included in the resource unit.
  • the determining, by the first device, the length of the resource unit of the serving cell according to the subcarrier spacing of the serving cell including:
  • the length of the resource unit may be a subframe length or a slot length; optionally, when the length of the resource unit is a subframe length, the t 1 is 1 ms; when the resource unit is When the length is the slot length, the t 1 is 0.5 ms.
  • the length of the resource unit is 0.5 ms, that is, when the subcarrier spacing of the serving cell is 30 kHz, the subframe length of the serving cell is 0.5 ms.
  • Table 1 (Table 1 is a parameter table of resource units); the above part is only an individual example, and Table 1 also shows the length of the resource unit when the subcarrier spacing is a different value. It can be seen that when the sub-carrier spacing of the serving cell takes a different value, the length of the resource unit is scaled with the sub-carrier spacing, so that the resource units corresponding to different sub-carrier spacings include the same number of symbols.
  • the numerical values in Table 1 are only examples, and are rounded values.
  • the effective symbol length and the CP length in this embodiment may be numbers similar to those in Table 1.
  • the interdependence between the parameters in Table 1 is not limited.
  • Table 1 is the parameter table of the resource unit.
  • the first device determines, according to the subcarrier spacing of the serving cell, the number of symbols included in the resource unit of the serving cell, including:
  • the first device determines, according to the subcarrier spacing of the serving cell, that the number of symbols included in the resource unit of the serving cell is 14, wherein the subcarrier spacing of the serving cell is a multiple of 15 kHz.
  • the number of symbols included in resource units corresponding to different subcarrier intervals is unchanged, so that different system parameters are signaled in respective resource units. Or the resource location occupied by the signal does not change.
  • the “symbol included in the resource unit” involved in the embodiment of the present application may refer to a time domain symbol included in the resource unit, and may be, for example, Orthogonal Frequency Division Multiplexing (OFDM) included in the resource unit. a symbol, or a single-carrier frequency-division multiple access (SC-FDMA) symbol included in a resource unit.
  • the symbol included in the resource unit may have a symbol number, where a number of the first symbol in the resource unit is 0, that is, a first symbol in the resource unit is a symbol 0, and so on.
  • the Xth symbol in the resource unit is the symbol X-1 in the resource unit.
  • the determining, by the first device, the number of subcarriers included in the resource unit of the serving cell according to the subcarrier spacing of the serving cell including:
  • the first device determines, according to the subcarrier spacing of the serving cell, that the number of subcarriers included in the resource unit of the serving cell is 12, where the subcarrier spacing of the serving cell is a multiple of 15 kHz; or
  • the first device determines, according to the subcarrier spacing of the serving cell, that the number of subcarriers included in the resource unit of the serving cell is a multiple of 12.
  • the resource elements corresponding to the different sub-carrier intervals are defined, so that the number of sub-carriers included in the resource unit corresponding to the different sub-carrier spacing is unchanged, for example, all is 12; or, when the sub-carrier of the serving cell When the interval is different, the number of subcarriers included in the resource unit corresponding to the subcarrier spacing is a multiple of S1, for example, the S1 may be equal to 12 (eg, 12 is when the subcarrier spacing of the serving cell is 15 kHz). The number of subcarriers included in the resource unit).
  • the length of the symbol includes: a CP length of the symbol and a valid symbol length of the symbol.
  • the determining, by the first device, the effective symbol length of the symbol included in the resource unit of the serving cell according to the subcarrier spacing of the serving cell including:
  • Table 1 shows the effective symbol length of the symbols included in the resource unit when the subcarrier spacing is a different value.
  • the resource unit includes a first normal CP symbol and a second normal CP symbol
  • the first device determines, according to a subcarrier interval of the serving cell, a cyclic prefix of a symbol included in a resource unit of the serving cell.
  • CP length including:
  • the number of the first normal CP symbols included in the resource unit is M1
  • the number of the second normal CP symbols is M2
  • both M1 and M2 are positive integers, where the serving cell
  • the values of M1 and M2 do not change.
  • the t 1 is 1 ms or when the length of the resource unit is a subframe length
  • the M1 is equal to 2
  • the M2 is equal to 12.
  • the symbol 0 to the symbol M1-1 in the resource unit are the first normal CP symbol, and the symbols M1 to M1+M2-1 in the resource unit are the second normal CP symbol; or ,
  • the symbol 0 and the symbol (M1+M2)/2 in the resource unit are the first normal CP symbol, and the remaining symbols in the resource unit except the symbol 0 and the symbol (M1+M2)/2 Is the second normal CP symbol.
  • the subcarrier spacing of the serving cell belongs to a first subcarrier spacing set, and the first subcarrier spacing set includes: a first subcarrier spacing and a second subcarrier spacing, where the first subcarrier Interval and said The two subcarrier spacings are all multiples of 15 kHz, and the first subcarrier spacing is smaller than the second subcarrier spacing (eg, the second subcarrier spacing is twice the interval of the first subcarrier);
  • the symbol 0 and the symbol (M1+M2)/2 in the resource unit are the first normal CP symbol, the resource The remaining symbols in the unit except the symbol 0 and the symbol (M1+M2)/2 are the second normal CP symbol;
  • the symbol 0 to the symbol M1-1 in the resource unit is the first normal CP symbol
  • the symbol in the resource unit M1 to M1+M2-1 are the second normal CP symbols.
  • the first subcarrier spacing corresponds to a first bandwidth portion of the serving cell
  • the second subcarrier spacing corresponds to a second bandwidth portion of the serving cell.
  • the resource unit may be determined according to the manner described in the above "A) part and the B) part.
  • the distribution of the first normal CP symbol and the second normal CP symbol is as shown in FIG. 2 (FIG.
  • FIG. 2 is a first schematic diagram of the distribution of the first normal CP symbol and the second normal CP symbol); II) when the first subcarrier When the interval is 30 kHz, and the second subcarrier spacing is 60 kHz, the first normal CP symbol and the second normal CP symbol in the resource unit may be determined according to the manner described in the foregoing "A) part and the B) part. The distribution is as shown in FIG. 3 ( FIG.
  • FIG. 3 is a schematic diagram 2 of the distribution of the first normal CP symbol and the second normal CP symbol); wherein the resource unit corresponding to the first subcarrier interval includes a downlink symbol and a guard time (Guard Period) For example, GP) and the uplink symbol; when the length of the resource unit is equal to the length of the subframe, the resource unit corresponds to a new subframe type, and may be referred to as a self-contained subframe type.
  • the number of the first normal CP symbols in the resource unit corresponding to the different subcarrier spacing is the same, and the first normal CP symbol and the second normal are normal.
  • the distribution of the CP symbols may be such that the GP boundary corresponding to the first subcarrier interval and the GP boundary corresponding to the second subcarrier interval can be aligned, and the uplink symbol corresponding to the first subcarrier interval can be aligned as shown in FIG. 2 or FIG. Aligning the boundary of the uplink symbol corresponding to the second subcarrier spacing (as shown in FIG. 2 or FIG.
  • the total time length occupied by all uplink symbols corresponding to the first subcarrier interval and all uplink symbols corresponding to the second subcarrier spacing The total length of the occupied time is the same) and the downlink symbol boundary corresponding to the first subcarrier interval is aligned with the downlink symbol boundary corresponding to the second subcarrier interval, so that the system parameter corresponding to the first subcarrier interval corresponds to the second subcarrier spacing
  • System parameters can coexist efficiently and improve system performance; otherwise, it will cause unnecessary waste of resources, such as the second subcarrier in Figure 2. If only the symbol 0 is the first normal CP symbol, the uplink symbol corresponding to the second subcarrier interval is aligned with the uplink symbol corresponding to the first subcarrier interval, for example, the second subcarrier.
  • the total length of the uplink symbol corresponding to the interval is greater than the total length of the uplink symbol corresponding to the first subcarrier spacing, so that the guard time interval obtained by the second subcarrier spacing relative to the downlink transmission corresponding to the first carrier interval is small and deteriorates.
  • the performance of the second subcarrier interval uplink transmission especially the transmission performance of the uplink control information, may be achieved by lengthening the GP length corresponding to the first subcarrier spacing, but it may cause unnecessary resource waste.
  • the channel and/or the signal occupied by the resource unit in the resource unit of the serving cell are the same (ie, the serving cell
  • the design of the channel and/or the signal in the resource unit is the same); that is, in the resource unit corresponding to the different subcarrier spacing, the resource occupied by the signal is the same; and/or the resource unit corresponding to the different subcarrier spacing, the channel occupied
  • the resource locations are all the same; the channel in this embodiment may include a downlink shared channel and a downlink control channel, and the signal may include a reference signal.
  • the same CP overhead may refer to the ratio of the length of time occupied by the CP to the length of the symbol, or the length of time occupied by the CP to the effective symbol length, or the CP overhead may refer to the length of time occupied by the CP divided by the symbol length.
  • the resource locations occupied by the channel and/or the signal in the resource unit of the serving cell are the same;
  • different subcarrier spacings included in the set of subcarrier spacings are multiples of 15 kHz;
  • the channel and/or signal occupation in the resource unit of the serving cell is under the same CP overhead.
  • the resource locations are all the same; optionally, the different subcarrier spacings included in the subcarrier spacing set are multiples of 15 kHz; optionally, the subcarrier spacing set corresponds to a specific carrier frequency set, where different The set of subcarrier spacings corresponds to different sets of carrier frequencies.
  • the first device determines the resource unit of the serving cell according to the sub-carrier spacing of the serving cell, and the parameter corresponding to each resource unit may be referred to as a system parameter corresponding to the sub-carrier interval, different.
  • the subcarrier spacing corresponds to different system parameters.
  • the length of the resource unit is scaled according to the subcarrier spacing, so that the resource units corresponding to different subcarrier spacings include the same number of symbols, and pass different subcarriers at the same time.
  • the number of subcarriers included in the resource unit corresponding to the interval is a multiple relationship, so that the resource elements (resource elements, referred to as REs) included in the resource elements corresponding to different subcarrier intervals are the same or multiplied, so that different subcarrier spacings are corresponding.
  • Uniform channel and signal design can be adopted in the resource unit to reduce complexity; that is, multiple system parameters can share a unified channel and signal design, reducing complexity.
  • the length of the resource unit is scaled according to the difference of the subcarrier spacing, so that the resource unit is separated by different subcarriers.
  • the number of symbols included in the following is the same, and the number of subcarriers included in the resource unit is multiplied, so that unified channel and signal design can be adopted in resource units corresponding to different subcarrier intervals, thereby reducing complexity;
  • the set of system parameters share a common channel and signal design, reducing complexity.
  • the number of the first normal CP symbols in the resource unit corresponding to the different subcarrier spacing is the same, and the distribution of the first normal CP symbol and the second normal CP symbol is in accordance with the foregoing “A” part and the B) part in this embodiment.
  • the GP boundary corresponding to the first subcarrier interval and the GP boundary corresponding to the second subcarrier interval can be aligned, the uplink symbol boundary corresponding to the first subcarrier interval, and the uplink symbol boundary corresponding to the second subcarrier interval.
  • the alignment and the downlink symbol boundary corresponding to the first subcarrier spacing are aligned with the downlink symbol boundary corresponding to the second subcarrier spacing, so that the system parameter corresponding to the first subcarrier spacing and the system parameter corresponding to the second subcarrier spacing can coexist efficiently. Improve system performance.
  • the procedure when the subcarrier spacing of the serving cell is a multiple of 17.5 kHz will be described in detail.
  • step S101 can be implemented in at least the following manner:
  • the first device determines a carrier frequency of the serving cell, and according to the carrier The frequency determines the subcarrier spacing of the serving cell.
  • the first device determines the carrier frequency of the serving cell
  • the first device determines, according to a preset carrier frequency and a subcarrier interval, a carrier frequency corresponding to the serving cell.
  • Subcarrier spacing For example, the corresponding relationship between the preset carrier frequency and the subcarrier spacing may be: when the carrier frequency is less than or equal to 3 GHz, the subcarrier spacing is equal to 17.5 kHz; or when the carrier frequency is greater than 3 GHz and less than or equal to 6 GHz, the subcarrier The carrier spacing is equal to 35 kHz.
  • the first device determines a carrier frequency set corresponding to the serving cell, and determines a subcarrier spacing set corresponding to the serving cell according to the carrier frequency set;
  • the first device determines a subcarrier spacing of the serving cell according to a subcarrier spacing set corresponding to the serving cell.
  • the first device when the first device determines the carrier frequency set corresponding to the serving cell, the first device determines the serving cell according to the preset correspondence between the preset carrier frequency set and the sub-carrier interval set. a set of subcarrier spacings corresponding to the set of carrier frequencies, and further determining a subcarrier spacing of the serving cell according to the set of subcarrier spacings.
  • the correspondence between the carrier frequency set and the subcarrier spacing set may be:
  • the subcarrier spacing set corresponding to the serving cell includes a subcarrier interval 1 and a subcarrier interval 8, and optionally, the subcarrier interval 1 is 15 kHz, the subcarrier spacing 8 is 17.5 kHz; or,
  • the subcarrier spacing set corresponding to the serving cell includes a subcarrier interval 8 and a subcarrier interval 9, optionally, the subcarrier spacing 8 is 17.5 kHz, and the subcarrier spacing 9 is 35 kHz; or,
  • the subcarrier spacing set corresponding to the serving cell includes a subcarrier interval 9 and a subcarrier interval 10, optionally, the subcarrier spacing 9 is 35 kHz, and the subcarrier spacing 10 is 70 kHz; or,
  • the subcarrier spacing set corresponding to the serving cell includes a subcarrier spacing 10 and a subcarrier spacing 11, and optionally, the subcarrier spacing 10 is 70 kHz, and the subcarrier spacing 11 is 140 kHz; or,
  • the subcarrier spacing set corresponding to the serving cell includes a subcarrier interval 12 and a subcarrier interval 13, and optionally, the subcarrier interval 12 is 280 kHz.
  • the subcarrier spacing 13 is 560 kHz.
  • the foregoing relationship between the carrier frequency set and the sub-carrier spacing set is only an example.
  • the correspondence between the carrier frequency set and the sub-carrier spacing set may be other forms. There is no limit to this.
  • the 5G communication system needs to meet different services, different deployment scenarios, and different spectrums. If different services and different scenarios are supported on the same serving cell, different system parameters must be supported to coexist on the same service cell.
  • the different bandwidth portions of the cell support different subcarrier spacings; correspondingly, the first device determines the subcarrier spacing corresponding to different bandwidth portions of the serving cell, respectively.
  • one subcarrier spacing set includes different subcarrier spacings, which enables selection of appropriate subcarrier spacings in different scenarios, thereby utilizing more matched subcarrier spacing to improve system performance. For example, a) for delay spread For larger scenes, choose a smaller subcarrier spacing; b) For high speed scenes, choose a larger subcarrier spacing. For example, for a case where the frequency is less than or equal to 6 GHz, the corresponding subcarrier spacing set includes 17.5 kHz and 35 kHz, wherein 35 kHz can be used to satisfy a high speed scene of up to 500 km/h, and 17.5 kHz can be used for a scene with a delay spread of up to about 5 us.
  • the first device may determine a parameter of the resource unit of the serving cell according to a subcarrier interval of the serving cell, and determine the service according to the parameter of the resource unit.
  • a resource unit of the cell where the parameter of the resource unit includes at least one of the following: a length of the resource unit, a number of symbols included in the resource unit, a number of subcarriers included in the resource unit, and a valid symbol length of the symbol included in the resource unit.
  • the cyclic prefix CP length of the symbol included in the resource unit is a resource unit of the cell, where the parameter of the resource unit includes at least one of the following: a length of the resource unit, a number of symbols included in the resource unit, a number of subcarriers included in the resource unit, and a valid symbol length of the symbol included in the resource unit.
  • the determining, by the first device, the length of the resource unit of the serving cell according to the subcarrier spacing of the serving cell including:
  • the length of the resource unit may be a subframe length or a slot length; optionally, when the length of the resource unit is a subframe length, the t 2 is 1 ms; when the resource unit is When the length is the slot length, the t 2 is 0.5 ms.
  • the length of the resource unit is 0.5 ms, that is, when the subcarrier spacing of the serving cell is 35 kHz, the subframe length of the serving cell is 0.5 ms.
  • Table 2 (Table 2 is the parameter table 2 of the resource unit); the above part only gives an individual example, and Table 2 also shows the length of the resource unit when the subcarrier spacing is a different value. It can be seen that when the sub-carrier spacing of the serving cell takes a different value, the length of the resource unit is scaled with the sub-carrier spacing, so that the resource units corresponding to different sub-carrier spacings include the same number of symbols.
  • the numerical values in Table 2 are only examples, and are rounded values.
  • the effective symbol length and the CP length in this embodiment may be numbers similar to those in Table 2.
  • the interdependence between the parameters in Table 3 is not limited.
  • Table 2 is the parameter list of the resource unit.
  • the first device determines, according to the subcarrier spacing of the serving cell, the number of symbols included in the resource unit of the serving cell, including:
  • the first device determines, according to the subcarrier spacing of the serving cell, that the number of symbols included in the resource unit of the serving cell is 16, wherein the subcarrier spacing of the serving cell is a multiple of 17.5 kHz.
  • the number of symbols included in resource units corresponding to different subcarrier intervals is unchanged, so that different system parameters are signaled in respective resource units. Or the resource location occupied by the signal does not change.
  • the “symbol included by the resource unit” involved in the embodiment of the present application may refer to a time domain symbol included in the resource unit, and may be, for example, an OFDM symbol included in the resource unit, or an SC-FDMA symbol.
  • the symbol included in the resource unit may have a symbol number, where a number of the first symbol in the resource unit is 0, that is, a first symbol in the resource unit is a symbol 0, and so on.
  • the Xth symbol in the resource unit is the symbol X-1 in the resource unit.
  • the determining, by the first device, the number of subcarriers included in the resource unit of the serving cell according to the subcarrier spacing of the serving cell including:
  • the first device determines, according to the subcarrier spacing of the serving cell, that the number of subcarriers included in the resource unit of the serving cell is a multiple of 16.
  • the resource elements corresponding to the different subcarrier intervals are defined, so that the number of subcarriers included in the resource unit corresponding to the different subcarrier intervals does not change, for example, 12, 16, or 8; or, when the service is When the subcarrier spacing of the cell takes a different value, the number of subcarriers included in the resource unit corresponding to the subcarrier spacing is a multiple of S2, for example, S2 may be equal to 16 (if the subcarrier spacing of the serving cell is 17.5 kHz) The number of subcarriers included in the resource unit).
  • the length of the symbol includes: a CP length of the symbol and a valid symbol length of the symbol.
  • the determining, by the first device, the effective symbol length of the symbol included in the resource unit of the serving cell according to the subcarrier spacing of the serving cell including:
  • Table 2 shows the effective symbol length of the resource unit when the subcarrier spacing is a different value.
  • the determining, by the first device, the cyclic prefix CP length of the symbol included in the resource unit of the serving cell according to the subcarrier spacing of the serving cell including:
  • the resource unit includes: a third normal CP symbol and a fourth normal CP symbol, optionally, the length of the third normal CP symbol is greater than the length of the fourth normal CP symbol; optionally, The number of the third normal CP symbols is M3, and the number of the fourth normal CP symbols is M4, and both M3 and M4 are positive integers; wherein when the subcarrier spacing of the serving cell takes different values, The values of M3 and M4 are unchanged.
  • the symbol 0 to the symbol M3-1 in the resource unit are the third normal CP symbol, and the symbols M3 to M3+M4-1 in the resource unit are the fourth normal CP symbol; or ,
  • the symbol 0 and the symbol (M3+M4)/2 in the resource unit are the third normal CP symbol, and the remaining symbols in the resource unit except the symbol 0 and the symbol (M3+M4)/2 Is the fourth normal CP symbol.
  • the subcarrier spacing of the serving cell belongs to a second subcarrier spacing set, and the second subcarrier spacing set includes: a third subcarrier spacing and a fourth subcarrier spacing, where the third subcarrier The interval and the fourth subcarrier spacing are both multiples of 17.5 kHz, and the third subcarrier spacing is smaller than the fourth subcarrier spacing (eg, the fourth subcarrier spacing is the third subcarrier spacing 2 times);
  • the symbol 0 and the symbol (M3+M4)/2 in the resource unit are the third normal CP symbol, the resource The remaining symbols in the unit except the symbol 0 and the symbol (M3+M4)/2 are the fourth normal CP symbol;
  • the symbol 0 to the symbol M3-1 in the resource unit is the third normal CP symbol
  • the symbol in the resource unit M3 to M3+M4-1 are the fourth normal CP symbols.
  • the third subcarrier spacing corresponds to a first bandwidth portion of the serving cell
  • the fourth subcarrier spacing corresponds to a second bandwidth portion of the serving cell.
  • the manner described in the foregoing "A) part and the B) part of the embodiment may be determined.
  • the number of the third normal CP symbols in the resource unit corresponding to the different subcarrier spacing is the same, and the foregoing part (A) according to this embodiment
  • the distribution of the third normal CP symbol and the fourth normal CP symbol determined in the manner described in section B), such that the GP boundary corresponding to the third subcarrier spacing and the GP boundary corresponding to the fourth subcarrier spacing can be aligned, and the third The uplink symbol boundary corresponding to the subcarrier interval is aligned with the uplink symbol boundary corresponding to the fourth subcarrier interval, and the downlink symbol boundary corresponding to the third subcarrier interval is aligned with the downlink symbol boundary corresponding to the fourth subcarrier interval, so that the third subcarrier is aligned.
  • the system parameters corresponding to the interval and the system parameters corresponding to the fourth subcarrier spacing can coexist efficiently and improve the performance of the system.
  • the channel and/or the signal occupied by the resource unit in the resource unit of the serving cell are the same (ie, the serving cell
  • the design of the channel and/or the signal in the resource unit is the same); that is, in the resource unit corresponding to the different subcarrier spacing, the resource occupied by the signal is the same; and/or the resource unit corresponding to the different subcarrier spacing, the channel occupied
  • the resource locations are all the same; the channel in this embodiment may include a downlink shared channel and a downlink control channel, and the signal may include a reference signal.
  • the resource locations occupied by the channels and/or signals in the resource unit of the serving cell are the same under the same CP overhead.
  • the resource locations occupied by the channel and/or the signal in the resource unit of the serving cell are the same;
  • different subcarrier spacings included in the set of subcarrier spacings are multiples of 17.5 kHz;
  • the channel and/or signal occupation in the resource unit of the serving cell is under the same CP overhead.
  • the resource locations are all the same; optionally, the different subcarrier spacings included in the subcarrier spacing set are multiples of 17.5 kHz; optionally, the subcarrier spacing set corresponds to a specific carrier frequency set, where Different sets of subcarrier spacings correspond to different sets of carrier frequencies.
  • the first device determines the resource unit of the serving cell according to the sub-carrier spacing of the serving cell, and the parameter corresponding to each resource unit may be referred to as a system parameter corresponding to the sub-carrier interval, different.
  • the subcarrier spacing corresponds to different system parameters.
  • the length of the resource unit is scaled according to the subcarrier spacing, so that the resource units corresponding to different subcarrier spacings include the same number of symbols, and pass different subcarriers at the same time.
  • the number of subcarriers included in the resource unit corresponding to the interval is a multiple relationship, so that the number of REs included in the resource unit corresponding to the different subcarrier spacing is the same or a multiple relationship, so that a unified channel can be used in the resource unit corresponding to the different subcarrier spacing.
  • signal design reducing complexity; that is, multiple sets of system parameters can share a unified channel and signal design, reducing complexity.
  • the length of the resource unit is scaled according to the difference of the subcarrier spacing, so that the resource unit is separated by different subcarriers.
  • the number of symbols included in the lower part is the same, and the number of subcarriers included in the resource unit is multiplied, so that unified channel and signal design can be adopted in resource units corresponding to different subcarrier intervals, thereby reducing complexity.
  • the subcarrier spacing of the serving cell in the embodiment of the present application may also be a multiple of 16.875 kHz.
  • the implementation manner of step S101 to step S103 may be different from the “subcarrier spacing of the serving cell is a multiple of 17.5 kHz”.
  • the implementation in the above-mentioned Embodiment 2 is similar, and only the portion in which the 17.5 kHz appears in the second embodiment is replaced with 16.875, and the above Table 2 is replaced with the following Table 3 (Table 3 is the parameter table of the resource unit. ), will not repeat them here.
  • Table 3 is the parameter table of the resource unit.
  • the numerical values in Table 3 are only examples, and are rounded values.
  • the effective symbol length and the CP length in this embodiment may be numbers similar to those in Table 3.
  • the interdependence between the parameters in Table 3 is not limited.
  • Table 3 is the parameter table of the resource unit.
  • the device 400 is a schematic structural diagram of Embodiment 1 of the device of the present application.
  • the device is a first device.
  • the device 400 provided in this embodiment includes: a processing unit 401 and a transceiver unit 402.
  • the processing unit 401 is configured to determine a subcarrier spacing of the serving cell, and determine a resource unit of the serving cell according to the subcarrier spacing of the serving cell;
  • the transceiver unit 402 is configured to send information to the second device or receive information sent by the second device on the serving cell according to the resource unit of the serving cell determined by the processing unit.
  • the sending and receiving unit 402 when the sending and receiving unit 402 is configured to send information to the second device according to the resource unit of the serving cell or to receive the information sent by the second device, the method may be as described in step S103 in the foregoing method embodiment. I will not repeat them here.
  • the processing unit 401 is specifically configured to: determine, according to a subcarrier interval of the serving cell, a parameter of a resource unit of the serving cell, where the parameter of the resource unit includes at least one of the following: a resource unit The length, the number of symbols included in the resource unit, the number of subcarriers included in the resource unit, the effective symbol length of the symbol included in the resource unit, and the cyclic prefix CP length of the symbol included in the resource unit.
  • the processing unit 401 is specifically configured to: determine, according to the subcarrier spacing of the serving cell, that the number of symbols included in the resource unit of the serving cell is 14, where a subcarrier spacing of the serving cell It is a multiple of 15 kHz.
  • processing unit 401 is specifically configured to:
  • Determining, according to the subcarrier spacing of the serving cell, the number of subcarriers included in the resource unit of the serving cell is a multiple of 12.
  • the resource unit includes a first normal CP symbol and a second normal CP symbol
  • the processing unit 401 Specifically used for:
  • the number of the first normal CP symbols included in the resource unit is M1
  • the number of the second normal CP symbols is M2
  • both M1 and M2 are positive integers
  • the M1 is equal to 2 and the M2 is equal to 12.
  • the symbol 0 to the symbol M1-1 in the resource unit are the first normal CP symbol, and the symbols M1 to M1+M2-1 in the resource unit are the second normal CP symbol; or ,
  • the symbol 0 and the symbol (M1+M2)/2 in the resource unit are the first normal CP symbol, and the remaining symbols in the resource unit except the symbol 0 and the symbol (M1+M2)/2 Is the second normal CP symbol.
  • the subcarrier spacing of the serving cell belongs to a first subcarrier spacing set, and the first subcarrier spacing set includes: a first subcarrier spacing and a second subcarrier spacing, where the first subcarrier The interval and the second subcarrier spacing are both multiples of 15 kHz, and the first subcarrier spacing is less than the second subcarrier spacing;
  • the symbol 0 and the symbol (M1+M2)/2 in the resource unit are the first normal CP symbol, in the resource unit.
  • the remaining symbols except the symbol 0 and the symbol (M1+M2)/2 are the second normal CP symbol;
  • the symbol 0 to the symbol M1-1 in the resource unit is the first normal CP symbol
  • the symbol M1 in the resource unit is M1+M2-1 is the second normal CP symbol.
  • the second subcarrier spacing is twice the interval of the first subcarrier.
  • the processing unit 401 is specifically configured to: determine a subcarrier spacing corresponding to the first bandwidth part in the serving cell, and determine a subcarrier spacing corresponding to the second bandwidth part in the serving cell, where the The subcarrier spacing corresponding to a bandwidth portion is the first subcarrier spacing, and the subcarrier spacing corresponding to the second bandwidth portion is the second subcarrier spacing.
  • the processing unit 401 is configured to determine the resource unit of the serving cell according to the sub-carrier spacing of the serving cell, and may be described in step S102 in the second embodiment of the foregoing method, and details are not described herein again.
  • the processing unit 401 is specifically configured to: determine, according to the subcarrier spacing of the serving cell, that the number of symbols included in the resource unit of the serving cell is 16, where the subcarrier spacing of the serving cell It is a multiple of 17.5 kHz.
  • processing unit 401 is specifically configured to:
  • Determining, according to the subcarrier spacing of the serving cell, the number of subcarriers included in the resource unit of the serving cell is a multiple of 16.
  • the T symbol is equal to 1/17500 seconds.
  • the T CP is equal to 5.36 microseconds.
  • the processing unit 401 is configured to determine the resource unit of the serving cell according to the sub-carrier spacing of the serving cell, and may be described in step S102 in the third embodiment of the foregoing method, and details are not described herein again.
  • the channel and/or the signal occupied by the resource unit in the resource unit of the serving cell are the same;
  • the resource locations occupied by the channel and/or signal in the resource unit of the serving cell are the same.
  • different subcarrier spacings included in the set of subcarrier spacings are all multiples of 15 kHz, or different subcarrier spacings included in the set of subcarrier spacings are multiples of 17.5 kHz.
  • the set of subcarrier spacings corresponds to a specific set of carrier frequencies, where different sets of subcarrier spacings correspond to different sets of carrier frequencies.
  • the length of the resource unit is a subframe length.
  • the device in this embodiment may be used to perform the technical solution in any embodiment of the foregoing method for transmitting information of the present application.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • the processing unit 401 may be implemented by a processor, and the transceiver unit 402 may be implemented by a transceiver.
  • the device is a first device.
  • the device 500 may include a processor 501, a transceiver 502, and a memory 503. It can be used to store code and the like when the processor 501 is executed.
  • various components in device 500 are coupled together by system bus 504, which includes, in addition to the data bus, a power bus, control bus, and status. Signal bus.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the software functional unit described above is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform the methods described in various embodiments of the present application. Part of the steps.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .
  • the aforementioned program can be stored in a computer readable storage medium.
  • the program when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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EP17773294.8A EP3419360A4 (en) 2016-03-31 2017-03-31 INFORMATION TRANSMISSION METHOD AND DEVICE
KR1020187029431A KR20180123531A (ko) 2016-03-31 2017-03-31 정보 전송 방법 및 디바이스
BR112018069886-5A BR112018069886B1 (pt) 2016-03-31 2017-03-31 Método de transmissão de informação, dispositivo e mídia de armazenamento legível por computador
JP2018551198A JP2019511879A (ja) 2016-03-31 2017-03-31 情報伝送方法およびデバイス
US16/147,858 US10582491B2 (en) 2016-03-31 2018-09-30 Information transmission method and device

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JP2019511879A (ja) 2019-04-25
BR112018069886A2 (pt) 2019-02-05
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US20190037551A1 (en) 2019-01-31
CN107295652A (zh) 2017-10-24

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