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WO2017193874A9 - 一种信息的发送方法、接收方法、用户设备及基站 - Google Patents

一种信息的发送方法、接收方法、用户设备及基站 Download PDF

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Publication number
WO2017193874A9
WO2017193874A9 PCT/CN2017/083229 CN2017083229W WO2017193874A9 WO 2017193874 A9 WO2017193874 A9 WO 2017193874A9 CN 2017083229 W CN2017083229 W CN 2017083229W WO 2017193874 A9 WO2017193874 A9 WO 2017193874A9
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WO
WIPO (PCT)
Prior art keywords
subframe
time
control channel
symbol
frequency resource
Prior art date
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/CN2017/083229
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English (en)
French (fr)
Other versions
WO2017193874A1 (zh
Inventor
成艳
薛丽霞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to BR112018072671-0A priority Critical patent/BR112018072671B1/pt
Priority to KR1020187035445A priority patent/KR102206362B1/ko
Priority to EP17795492.2A priority patent/EP3442150B1/en
Priority to JP2018559203A priority patent/JP6720344B2/ja
Publication of WO2017193874A1 publication Critical patent/WO2017193874A1/zh
Publication of WO2017193874A9 publication Critical patent/WO2017193874A9/zh
Priority to US16/185,916 priority patent/US11283564B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469Two-way operation using the same type of signal, i.e. duplex using time-sharing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signalling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • H04L5/143Two-way operation using the same type of signal, i.e. duplex for modulated signals

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method for transmitting information, a receiving method, a user equipment, and a base station.
  • the fifth generation mobile communication technology (English name: 5-Generation, English abbreviation: 5G) communication system is committed to support higher system performance, which will support a variety of different services, different deployment scenarios and different spectrum.
  • different services include enhanced mobile broadband (English full name: enhanced Mobile Broadband, English abbreviation: eMBB), machine type communication (English name: Machine Type Communication, English abbreviation: MTC), ultra-reliable low-latency communication (English full name: Ultra -reliable and low latency communications, English abbreviation: URLLC), multimedia broadcast multicast service (English full name: Multimedia Broadcast Multicast Service, English abbreviation: MBMS) and positioning.
  • 5G will support a spectrum range up to 100 GHz.
  • Dynamic Time Division Duplex (English full name: Time Division Duplex, English abbreviation: TDD) is an important technology in 5G communication system. It dynamically adjusts the transmission direction of a sub-frame to better match real-time service requirements. Communication system spectrum efficiency and better meet the needs of low latency services. 5G communication systems are designed to enable better use of dynamic TDD.
  • the 5G communication system needs to support forward compatibility, that is, the 5G communication system can flexibly allow the introduction of unknown features in the future, and the introduction of future unknown features will not cause the user equipment supporting only the design of the existing 5G communication system to be inoperable.
  • 5G communication system design needs to support forward compatibility.
  • the embodiments of the present invention provide a method for sending information, a receiving method, a user equipment, and a base station, which can better support dynamic TDD and maintain forward compatibility.
  • the first aspect of the present invention provides a method for sending information and a receiving method, including:
  • the first device determines a location of the reference signal
  • the first device transmits the reference signal or receives the reference signal according to the determined position of the reference signal.
  • the first device may be referred to as a user equipment, and may also be referred to as a base station.
  • the reference signal may include a first reference signal and a second reference signal.
  • the first reference signal may be referred to as a first demodulation reference signal DMRS
  • the second reference signal may be Referred to as a second demodulation reference signal DMRS
  • the first reference signal can be used for uplink data demodulation
  • the second reference signal can be used for downlink data demodulation
  • the position of the first reference signal time domain location and/or frequency domain location
  • the domain location and/or frequency domain location can be the same.
  • the first device may pass the first reference
  • the signal and the second reference signal better perform uplink and downlink interference estimation, thereby better performing interference cancellation between uplink lines, thereby better utilizing TDD and better matching actual services, thereby providing spectrum efficiency of the system. Better provide low latency services.
  • the reference signal includes a first reference signal and a second reference signal
  • the determining, by the first device, the location of the reference signal includes: determining, by the first device, a location of the first reference signal, The first reference signal is used for downlink data demodulation; the first device determines the location of the second reference signal, and the second reference signal is used for uplink data demodulation.
  • the first device receives the first reference signal according to a location of the first reference signal, and sends the second reference signal according to a location of the second reference signal; or, the first The device transmits the second reference signal according to a location of the first reference signal, and receives the second reference signal according to a location of the second reference signal.
  • the time domain location of the first reference signal is the same as the time domain location of the second reference signal.
  • the first device sends the first reference signal and receives the second reference signal according to the determined position of the first reference signal and the position of the second reference signal, or receives the first reference signal and sends The second reference signal.
  • the frequency domain location of the first reference signal is the same as the frequency domain location of the second reference signal.
  • the first reference signal is carried in a first transmission unit, where a location of the first reference signal is a location of the first reference signal in the first transmission unit, where The second reference signal is carried in the second transmission unit, where the position of the second reference signal is the position of the second reference signal in the second transmission unit, and the time domain position of the first reference signal is The time domain position of the second reference signal is the same as the time domain position of the first reference signal in the first transmission unit and the time domain position of the second reference signal in the second transmission unit.
  • the length of time corresponding to the first transmission unit is equal to the length of time corresponding to the second transmission unit.
  • the transmission direction of a transmission unit can be dynamically changed in the dynamic TDD mechanism, it can be dynamically applied to uplink data transmission or downlink data transmission, so that the current service requirements can be better matched.
  • the first reference signal is carried in a first transmission unit, where a location of the first reference signal is a location of the first reference signal in the first transmission unit, where The second reference signal is carried in the second transmission unit, where the position of the second reference signal is the position of the second reference signal in the second transmission unit, and the time domain position of the first reference signal is The time domain position of the second reference signal is the same as the time domain position of the first reference signal in the first transmission unit and the time domain position of the second reference signal in the second transmission unit.
  • the frequency domain position of the first reference signal is the same as the frequency domain position of the second reference signal, and the frequency domain position of the first reference signal in the first transmission unit is opposite to the second reference signal.
  • the frequency domain location in the second transmission unit is the same, and the length of time corresponding to the first transmission unit is equal to the length of time corresponding to the second transmission unit.
  • the transmission direction of one subframe can be dynamically changed in the dynamic TDD mechanism, it can be dynamically applied to Line data transmission or downlink data transmission, so it can better match current business needs.
  • the first reference signal is located in a third symbol in the first transmission unit, and the second reference signal is located in a third symbol in the second transmission unit.
  • the symbol in the present invention may refer to a time domain symbol, for example, may be a single carrier frequency division multiple access (English name: Single-carrier Frequency-Division Multiple Access, English abbreviation: SC-FDMA) symbol, or may be orthogonal frequency division Use (English full name: Orthogonal Frequency Division Multiplexing, English abbreviation: OFDM) symbol.
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • OFDM Orthogonal Frequency Division Multiplexing
  • the first reference signal is carried in a first subframe, and a location of the first reference signal is a location of the first reference signal in the first subframe, where The second reference signal is carried in the second subframe, where the location of the second reference signal is the position of the second reference signal in the second subframe, and the time domain position of the first reference signal is The time domain position of the second reference signal is the same as the time domain position of the first reference signal in the first subframe and the time domain position of the second reference signal in the second subframe.
  • the number of symbols used for downlink transmission in the first subframe is greater than the number of symbols used for uplink transmission, and the number of symbols used for downlink transmission in the second subframe is smaller than that used for uplink transmission. The number of symbols.
  • the first reference signal is carried in a first subframe, and a location of the first reference signal is a location of the first reference signal in the first subframe, where The second reference signal is carried in the second subframe, where the location of the second reference signal is the position of the second reference signal in the second subframe, and the time domain position of the first reference signal is The time domain position of the second reference signal is the same as the time domain position of the first reference signal in the first subframe and the time domain position of the second reference signal in the second subframe.
  • the frequency domain position of the first reference signal is the same as the frequency domain position of the second reference signal, and the frequency domain position of the first reference signal in the first subframe is opposite to the second reference signal.
  • the frequency domain positions in the second subframe are the same, the number of symbols used for downlink transmission in the first subframe is greater than the number of symbols used for uplink transmission, and the second subframe is used for downlink The number of symbols transmitted is less than the number of symbols used for uplink transmission.
  • the first subframe includes a symbol for downlink transmission, a guard time GP, and a symbol for uplink transmission, where the first subframe includes a symbol corresponding to the uplink transmission.
  • the uplink transmission includes a hybrid automatic repeat request to confirm the HARQ-ACK transmission, and the downlink transmission corresponding to the symbol for the downlink transmission included in the first subframe includes a downlink control transmission, a downlink data transmission, and the first reference signal transmission;
  • the second subframe includes a symbol for downlink transmission, a guard time GP and a symbol for uplink transmission, and a downlink transmission corresponding to the symbol for downlink transmission included in the second subframe includes downlink control transmission, where The uplink transmission corresponding to the symbol for uplink transmission included in the second subframe includes an uplink control transmission, an uplink data transmission, and the second reference signal transmission.
  • the first subframe starts with a symbol for downlink transmission included in the first subframe, and ends with a symbol for uplink transmission included in the first subframe.
  • the second subframe starts with a symbol for downlink transmission included in the second subframe, and terminates with a symbol for uplink transmission included in the second subframe.
  • the time domain position of the first reference signal in the first subframe is the same as the time domain position of the second reference signal in the second subframe, specifically
  • the symbol index occupied by the first reference signal in the first subframe is the same as the symbol index occupied by the second reference signal in the second subframe.
  • the first reference signal is located in a third symbol in the first subframe
  • the second reference signal is located in a third symbol in the second subframe.
  • the first device is a user equipment
  • the sending, by the first device, the reference signal according to the determined location of the reference signal or receiving the reference signal includes: the user equipment according to the user equipment The location of the first reference signal receives the first reference signal; the user equipment transmits the second reference signal according to a location of the second reference signal.
  • the first device is a base station
  • the sending, by the first device, the reference signal according to the determined location of the reference signal or receiving the reference signal includes:
  • the base station receives the second reference signal according to a location of the second reference signal.
  • a second aspect of the present invention provides a method for receiving information, including:
  • the user equipment determines a time-frequency resource of the control channel
  • the user equipment receives downlink control information according to a time-frequency resource of the control channel.
  • the user equipment determines a time-frequency resource of the control channel, and the user equipment receives the downlink control information according to the time-frequency resource of the control channel, where the user equipment determines the first control channel. a frequency resource; the user equipment determines a time-frequency resource of the second control channel; the user equipment detects the first downlink control information according to the time-frequency resource of the first control channel; and the user equipment is configured according to the second control The time-frequency resource of the channel detects the second downlink control information.
  • the symbol occupied by the time-frequency resource of the first control channel is located before the symbol occupied by the time-frequency resource of the second control channel.
  • the time-frequency resource of the first control channel occupies i symbols, and the corresponding symbol l 0 , . . . , l i-1 , i is a positive integer greater than or equal to 1; the second control The time-frequency resource of the channel starts from the symbol l i+k , the k is a positive integer greater than 1 and the symbol l i to the symbol l i+k-1 is used for reference signal transmission, the reference signal is used for Demodulation of the second control channel and/or data.
  • the time-frequency resource of the first control channel occupies i symbols, and the corresponding symbol l 0 , . . . , l i-1 , i is a positive integer greater than or equal to 1;
  • the time-frequency resource of the control channel starts from the symbol l i , or the time-frequency resource of the second control channel is located on the symbol after the symbol l i-1 ; the second control channel and the downlink data are multiplexed with the symbol l i-
  • the time-frequency resource corresponding to the symbol after 1 is.
  • the user equipment determines a time-frequency resource of the first control channel
  • the user equipment determines that the time-frequency resource of the second control channel includes: the user equipment determines that the first subframe is the first one. a time-frequency resource of the control channel; the user equipment determines a time-frequency resource of the second control channel in the first subframe; the first subframe includes a symbol for downlink transmission, a guard time GP, and a symbol for uplink transmission And the uplink transmission corresponding to the symbol for the uplink transmission included in the first subframe includes a hybrid automatic repeat request acknowledgement HARQ-ACK transmission, and the downlink transmission corresponding to the symbol for the downlink transmission included in the first subframe And including a downlink control transmission, a downlink data transmission, and a first reference signal transmission; the symbol included in the first subframe for downlink transmission includes a symbol occupied by a time-frequency resource of the first control channel, and the second control The symbol occupied by the time-frequency resource of the channel.
  • the time-frequency resource of the first control channel occupies i symbols in the first subframe, and corresponds to the first symbol to the ith symbol in the first subframe.
  • i is a positive integer greater than or equal to 1;
  • the time-frequency resource of the second control channel starts from an i+++1th symbol in the first subframe, and the k is greater than or equal to a positive integer of 1;
  • an i+1th symbol to an i+k symbol in the first subframe are used for reference signal transmission, and the reference signal is used for demodulation of the second control channel and/or data
  • the l-k1th symbol to the lth symbol in the first subframe are symbols for uplink transmission in the first subframe, and the l is a symbol included in the first subframe.
  • the k1 is a positive integer greater than or equal to 1.
  • the time-frequency resource of the first control channel occupies i symbols in the first subframe, and corresponds to the first symbol to the ith symbol in the first subframe.
  • i is a positive integer greater than or equal to 1;
  • a time-frequency resource of the second control channel starts from an i+1th symbol in the first subframe, or a time-frequency resource of the second control channel is located
  • the symbol after the i-th symbol in the first subframe; the second control channel and the downlink data multiplex the ith symbol in the first subframe to the ith in the first subframe a time-frequency resource corresponding to the +k2 symbol, wherein the k2 is a positive integer greater than 1; the i+k2+1th symbol in the first subframe is a guard time GP in the first subframe;
  • the i+k2+2 symbols to the 1st symbol in the first subframe are symbols for uplink transmission in the first subframe, and the 1 is the number of symbols included in the first subframe.
  • the user equipment determines a time-frequency resource of the first control channel, and the user equipment determines the time-frequency resource of the second control channel, including:
  • the user equipment determines a time-frequency resource of the first control channel in the second subframe
  • the user equipment determines that there is no time-frequency resource of the second control channel in the second subframe
  • the second subframe includes a symbol for downlink transmission, a guard time GP and a symbol for uplink transmission, and a downlink transmission corresponding to the symbol for downlink transmission included in the second subframe includes downlink control transmission, where
  • the uplink transmission corresponding to the symbol for uplink transmission included in the second subframe includes the second reference signal transmission, the uplink data transmission, and the uplink control transmission.
  • the symbol for downlink transmission included in the second subframe is the first symbol in the second subframe
  • the time-frequency resource occupation of the first control channel is The first symbol in the second subframe
  • the user equipment determining the time-frequency resource of the second control channel includes: determining, by the user equipment, the time-frequency resource of the second control channel according to the first downlink control information.
  • the first downlink control information is carried in a subframe n
  • the second control channel is carried in a subframe n
  • the first downlink control information is carried in a subframe n
  • the second control channel is carried in a subframe n+1; the n is a positive integer.
  • the method further includes: the user equipment receiving, according to the first downlink control information and the second downlink control information, a downlink shared channel; wherein the first downlink control information And including time-frequency resource information of the second downlink control channel and/or time-frequency resource information of the downlink shared channel, where the second downlink control information includes modulation and coding information of the downlink shared channel.
  • the first control channel performs demodulation according to a reference signal carried in a time-frequency resource of the first control channel.
  • the user equipment determines a time-frequency resource of the control channel, where the user equipment determines a time-frequency resource of the subframe n control channel; if the subframe n belongs to the subframe set one, The user equipment determines the time-frequency resource of the subframe n control channel according to a preset rule; if the subframe n belongs to the subframe set 2, the user equipment determines the subframe according to downlink control signaling.
  • the user equipment determines the time-frequency resource of the subframe n control channel according to the downlink control signaling, where the user equipment determines, according to the downlink control signaling carried in the subframe nk.
  • the sub-frame n controls the time-frequency resource of the channel, and the k is an integer greater than or equal to 0.
  • the value of k is equal to 1, and the user equipment determines the time-frequency resource of the subframe n control channel according to the downlink control signaling carried in the subframe n-1.
  • the subframe n-k may be represented as the kth subframe from the front of the subframe n, and the subframe n-k and the subframe n may be in the same radio frame or may not be in the same radio frame.
  • the downlink control signaling may be downlink control information or information carried in a downlink control information format.
  • the determining, by the user equipment, the time-frequency resource of the subframe n control channel according to the downlink control signaling includes: the user equipment according to the downlink control signaling carried in the subframe n-1 Determining a time-frequency resource of the subframe n control channel.
  • the time-frequency resource time domain of the subframe n control channel occupies 2 symbols.
  • control channel includes a control channel set, and the user equipment determines a time-frequency resource of the control channel, where the user equipment determines a time-frequency resource of the control channel set one; the control The control channel in channel set 1 uses a discrete transmission mode.
  • the control channel adopts a discrete transmission mode, and may refer to a control channel carrying a downlink control information DCI format transmitted in a time-frequency resource of the control channel, and the occupied time-frequency resources are discretely distributed on the time-frequency resources of the control channel.
  • a resource element group corresponding to a control channel carrying a downlink control information DCI format is discretely distributed in a time-frequency resource of the control channel.
  • the control channel includes a control channel set 1 and a control channel set 2, and the user equipment determines a time-frequency resource of the control channel, where the user equipment determines a time frequency of the control channel set one.
  • the user equipment determines a time-frequency resource of the control channel set 2; the control channel in the control channel set 1 adopts a discrete transmission mode, and the control channel in the control channel set 2 adopts a centralized transmission mode.
  • the control channel adopts a centralized transmission mode, and may refer to a control channel carrying a downlink control information DCI format transmitted in the time-frequency resource of the control channel, and the occupied time-frequency resources will be concentrated on the time-frequency resources of the control channel.
  • the resource element group corresponding to the control channel carrying the DCI format of the downlink control information is concentrated on a part of the time-frequency resources of the time-frequency resources of the control channel.
  • the centralized transmission of the control channel enables the beamforming transmission mode such that the control channel is concentrated corresponding to a certain beam direction and improves the coverage of the control channel.
  • the centralized transmission enables the user to jointly use the reference signal in the centralized resource as a channel. It is estimated to improve the channel estimation performance and improve the performance of the control channel based on the beam transmission mode.
  • the determining, by the user equipment, the time-frequency resource of the control channel set 1 includes: the user equipment detects downlink control information in subframe n; and the user equipment detects according to the subframe n
  • the downlink control information determines the time-frequency resource of the subframe n+k control channel set one, the n is an integer, and the k is a positive integer greater than or equal to 1.
  • the method further includes: the user equipment according to the subframe n
  • the time-frequency resource of the +k control channel set one determines the time-frequency resource of the subframe n+k control channel set two.
  • the subframe carrying the control channel does not carry synchronization signals and/or system information.
  • the user equipment determines a time-frequency resource of the control channel, where the user equipment determines a time-frequency resource of a basic set of the control channel, and the user equipment is based on the basic set. And detecting, by the time-frequency resource, downlink control information, where the user equipment determines, according to the detected downlink control information, a time-frequency resource of the extended set of the control channel.
  • the user equipment determines a time-frequency resource of the basic set of the control channel, including: the user equipment receives system information; and the user equipment determines the control channel according to the system information.
  • Basic set of time-frequency resources including: the user equipment receives system information; and the user equipment determines the control channel according to the system information.
  • determining, by the user equipment, the time-frequency resource of the basic set of the control channel according to the system information that: the user equipment determines, according to the system information, a basic set of the control channel. The number of symbols occupied by the time-frequency resource; or the user equipment determines, according to the system information, the number of physical resource blocks occupied by the time-frequency resource of the basic set of the control channel; or, the user equipment according to the The system information determines the number of control channel elements CCE corresponding to the time-frequency resources of the basic set of the control channels.
  • the determining, by the user equipment, the time-frequency resource of the basic set of the control channel includes: determining, by the user equipment, a time-frequency resource of a basic set of the control channel according to a preset rule.
  • the preset rule occupies 1 symbol for a time-frequency resource of a basic set of the control channels.
  • the user equipment determines a time-frequency resource of the basic set of the control channel, including: the user equipment receives system information; and the user equipment determines the control channel according to the system information.
  • the number of symbols occupied by the time-frequency resource of the control channel may be a fixed value of the time-frequency resource occupied by the control channel, or the number of symbols occupied by the time-frequency resource of the control channel is
  • the preset value is, for example, 2 symbols.
  • the user equipment detects downlink control information based on the time-frequency resource of the basic set; and when the user equipment determines, according to the detected downlink control information, an extended set of the control channel.
  • the frequency resource includes: the user equipment detects downlink control information based on the time-frequency resource of the basic set in the subframe n; the user equipment determines, according to the downlink control information detected by the subframe n, the subframe n+k A time-frequency resource of an extended set of control channels, where n is an integer, and k is a positive integer greater than or equal to zero. Optionally, the value of k is equal to one.
  • the method further includes: determining, by the user equipment, whether an extended set of the control channel exists according to the detected downlink control information; or, the user equipment detects according to the The downlink control information determines a transmission mode corresponding to the extended set of the control channels.
  • the basic set exists in all subframes including symbols for downlink transmission.
  • the extended set does not exist in a subcarrier that carries synchronization signals and/or system information. In the frame.
  • a third aspect of the present invention provides a method for transmitting information, including:
  • the base station determines a time-frequency resource of the control channel
  • the base station sends downlink control information according to the time-frequency resource of the control channel.
  • the base station determines a time-frequency resource of the control channel, and the sending, by the base station, the downlink control information according to the time-frequency resource of the control channel, where the base station determines the time-frequency resource of the first control channel;
  • the base station determines the time-frequency resource of the second control channel;
  • the base station sends the first downlink control information according to the time-frequency resource of the first control channel;
  • the base station sends the second according to the time-frequency resource of the second control channel Downstream control information.
  • the symbol occupied by the time-frequency resource of the first control channel is located before the symbol occupied by the time-frequency resource of the second control channel.
  • the time-frequency resource of the first control channel occupies i symbols, and the corresponding symbol l 0 , . . . , l i-1 , i is a positive integer greater than or equal to 1; the second control The time-frequency resource of the channel starts from the symbol l i+k , the k is a positive integer greater than 1 and the symbol l i to the symbol l i+k-1 is used for reference signal transmission, the reference signal is used for Demodulation of the second control channel and/or data.
  • the time-frequency resource of the first control channel occupies i symbols, and the corresponding symbol l 0 , . . . , l i-1 , i is a positive integer greater than or equal to 1;
  • the time-frequency resource of the control channel starts from the symbol l i , or the time-frequency resource of the second control channel is located on the symbol after the symbol l i-1 ; the second control channel and the downlink data are multiplexed with the symbol l i-
  • the time-frequency resource corresponding to the symbol after 1 is.
  • the base station determines a time-frequency resource of the first control channel, and the base station determines a time-frequency resource of the second control channel, where the base station determines the first control channel in the first subframe. a time-frequency resource; the base station determines a time-frequency resource of a second control channel in the first subframe; the first subframe includes a symbol for downlink transmission, a guard time GP, and a symbol for uplink transmission,
  • the uplink transmission corresponding to the symbol for the uplink transmission included in the first subframe includes a hybrid automatic repeat request acknowledgement HARQ-ACK transmission, and the downlink transmission corresponding to the symbol for downlink transmission included in the first subframe includes downlink control Transmission, downlink data transmission, and first reference signal transmission;
  • the symbol for downlink transmission included in the first subframe includes a symbol occupied by a time-frequency resource of the first control channel and a time of the second control channel The symbol occupied by the frequency resource.
  • the time-frequency resource of the first control channel occupies i symbols in the first subframe, and corresponds to the first symbol to the ith symbol in the first subframe.
  • i is a positive integer greater than or equal to 1
  • the time-frequency resource of the second control channel starts from an i+++1th symbol in the first subframe, and the k is greater than or equal to An integer
  • the i+1th symbol to the (i+k)th symbol in the first subframe are used for reference signal transmission, and the reference signal is used for demodulation of the second control channel and/or data
  • the l-k1th symbol to the lth symbol in the first subframe are symbols for uplink transmission in the first subframe, and the l is the number of symbols included in the first subframe, Let k1 be a positive integer greater than or equal to 1.
  • the time-frequency resource of the first control channel occupies i symbols in the first subframe, and corresponds to the first symbol to the ith symbol in the first subframe.
  • i is a positive integer greater than or equal to 1;
  • a time-frequency resource of the second control channel starts from an i+1th symbol in the first subframe, or a time-frequency resource of the second control channel is located The symbol after the i-th symbol in the first subframe;
  • the second control channel is multiplexed with downlink data a time-frequency resource corresponding to an ith symbol in the first subframe to an i+k2 symbol in the first subframe, where k2 is a positive integer greater than 1; a first digit in the first subframe
  • the i+k2+1 symbols are the guard time GP in the first subframe; the i+k2+2 symbols to the lth symbol in the first subframe are used in the first subframe.
  • the l is the number of symbols included in the first subframe.
  • the base station determines a time-frequency resource of the first control channel, and the base station determines a time-frequency resource of the second control channel, where the base station determines the first control channel in the second subframe. a time-frequency resource; the base station determines a time-frequency resource without a second control channel in the second subframe; the second subframe includes a symbol for downlink transmission, a guard time GP, and a symbol for uplink transmission,
  • the downlink transmission corresponding to the symbol for downlink transmission included in the second subframe includes downlink control transmission, and the uplink transmission corresponding to the symbol for uplink transmission included in the second subframe includes the second reference signal transmission , uplink data transmission and uplink control transmission.
  • the symbol for downlink transmission included in the second subframe is the first symbol in the second subframe
  • the time-frequency resource occupation of the first control channel is The first symbol in the second subframe
  • the first downlink control information includes time-frequency resource information of the second control channel.
  • the first downlink control information is carried in a subframe n
  • the second control channel is carried in a subframe n
  • the first downlink control information is carried in a subframe n
  • the second control channel is carried in a subframe n+1; the n is a positive integer.
  • the method further includes: the base station transmitting a downlink shared channel; wherein the first downlink control information includes time-frequency resource information of the second downlink control channel, and/or the Time-frequency resource information of the downlink shared channel; the second downlink control information includes modulation and coding information of the downlink shared channel.
  • the method further includes: the base station transmitting a reference signal in a time-frequency resource of the first control channel, where the reference signal is used for demodulation of the first control channel.
  • the method further includes: the base station sends downlink control signaling, where the downlink control signaling is used to determine a time-frequency resource of a subframe n control channel, where the subframe n is not carried. Synchronization signal and/or system information, the n being an integer greater than or equal to zero.
  • the sending, by the base station, the downlink control signaling includes: sending, by the base station, the downlink control signaling in a subframe n-k, where the k is an integer greater than or equal to 0. Optionally, the k is equal to one.
  • the determining, by the base station, the time-frequency resource of the control channel the determining, by the base station, the time-frequency resource of the control channel of the subframe n according to a predefined rule; Signal and / or system information.
  • the pre-defined rule may be that the number of symbols occupied by the time-frequency resource of the control channel is a fixed value, or the number of symbols occupied by the time-frequency resource of the control channel is a preset value, for example, two symbols. .
  • control channel includes a control channel set one, and the base station determines a time-frequency resource of the control channel, where the base station determines a time-frequency resource of the control channel set one; the method further includes The base station transmits the control channel based on the time-frequency resource of the control channel set one by using a discrete transmission mode.
  • the control channel includes a control channel set 1 and a control channel set 2, and the base station determines a time-frequency resource of the control channel, where the base station determines a time-frequency resource of the control channel set one; The base station determines a time-frequency resource of the control channel set 2; the control channel in the control channel set 1 uses a discrete transmission In a manner, the control channel in the control channel set 2 adopts a centralized transmission mode.
  • the method further includes: the base station transmitting downlink control information in a subframe n, where the downlink control information includes time-frequency resource information of a subframe n+k control channel set one, n is an integer, and k is a positive integer greater than or equal to 1.
  • the base station determines a time-frequency resource of the control channel, and the sending, by the base station, the downlink control information according to the time-frequency resource of the control channel, where the base station determines the basic set of the control channel. a time-frequency resource; the base station sends downlink control information based on the time-frequency resource of the basic set, where the downlink control information includes time-frequency resource information of an extended set of the control channel.
  • the method further includes: the base station transmitting system information, where the system information includes time-frequency resource information of a basic set of the control channels.
  • the system information includes time-frequency resource information of a basic set of the control channel, where the system information includes a number of symbols occupied by a time-frequency resource of a basic set of the control channels.
  • Information or, the system information includes a number of physical resource blocks occupied by time-frequency resources of a basic set of the control channels; or, the system information includes a physical occupied by a time-frequency resource of a basic set of the control channels.
  • the number information of the resource blocks; or the system information includes the number of resource block pairs occupied by the time-frequency resources of the basic set of the control channels; or the system information includes a basic set of the control channels
  • the number of subcarriers occupied by the time-frequency resource; or the system information includes the number of CCEs of the control channel unit corresponding to the time-frequency resource of the basic set of the control channel.
  • the determining, by the base station, the time-frequency resource of the basic set of the control channel includes: determining, by the base station, a time-frequency resource of a basic set of the control channel according to a preset rule.
  • the preset rule occupies 1 symbol for a time-frequency resource of a basic set of the control channels.
  • the base station sends downlink control information according to the time-frequency resource of the basic set, where the downlink control information includes time-frequency resource information of an extended set of the control channel, including: the base station Transmitting downlink control information based on the time-frequency resource of the basic set in the subframe n, where the downlink control information includes time-frequency resource information of an extended set of the control channel of the subframe n+k; the n is an integer, k is a positive integer greater than or equal to zero. Optionally, the value of k is equal to one.
  • the downlink control information includes information indicating whether an extended set of the control channel exists; or the downlink control information includes information indicating a transmission mode corresponding to an extended set of the control channel.
  • the basic set exists in all subframes including symbols for downlink transmission.
  • the extended set does not exist in a subframe that carries synchronization signals and/or system information.
  • a fourth aspect of the present invention provides an apparatus for use as a first device, including:
  • transceiver module configured to send the reference signal or receive the reference signal according to the determined location of the reference signal.
  • the reference signal includes a first reference signal and a second reference signal
  • the determining module is specifically configured to determine a location of the first reference signal, where the first reference signal is used for downlink data solution. Adjusting a position of the second reference signal for uplink data demodulation; wherein a time domain position of the first reference signal is the same as a time domain position of the second reference signal.
  • the transceiver module is configured to receive the first reference signal according to a location of the first reference signal, and send the second reference signal according to a location of the second reference signal; or The first device transmits the second reference signal according to the location of the first reference signal, and receives the second reference signal according to the location of the second reference signal.
  • the frequency domain location of the first reference signal is the same as the frequency domain location of the second reference signal.
  • the first reference signal is carried in a first transmission unit, where a location of the first reference signal is a location of the first reference signal in the first transmission unit, where The second reference signal is carried in the second transmission unit, where the position of the second reference signal is the position of the second reference signal in the second transmission unit, and the time domain position of the first reference signal is The time domain position of the second reference signal is the same as the time domain position of the first reference signal in the first transmission unit and the time domain position of the second reference signal in the second transmission unit.
  • the length of time corresponding to the first transmission unit is equal to the length of time corresponding to the second transmission unit.
  • the first reference signal is carried in a first transmission unit, where a location of the first reference signal is a location of the first reference signal in the first transmission unit, where The second reference signal is carried in the second transmission unit, where the position of the second reference signal is the position of the second reference signal in the second transmission unit, and the time domain position of the first reference signal is The time domain position of the second reference signal is the same as the time domain position of the first reference signal in the first transmission unit and the time domain position of the second reference signal in the second transmission unit.
  • the frequency domain position of the first reference signal is the same as the frequency domain position of the second reference signal, and the frequency domain position of the first reference signal in the first transmission unit is opposite to the second reference signal.
  • the frequency domain location in the second transmission unit is the same, and the length of time corresponding to the first transmission unit is equal to the length of time corresponding to the second transmission unit.
  • the first reference signal is located in a third symbol in the first transmission unit, and the second reference signal is located in a third symbol in the second transmission unit.
  • the first reference signal is carried in a first subframe, and a location of the first reference signal is a location of the first reference signal in the first subframe, where The second reference signal is carried in the second subframe, where the location of the second reference signal is the position of the second reference signal in the second subframe, and the time domain position of the first reference signal is The time domain position of the second reference signal is the same as the time domain position of the first reference signal in the first subframe and the time domain position of the second reference signal in the second subframe.
  • the number of symbols used for downlink transmission in the first subframe is greater than the number of symbols used for uplink transmission, and the number of symbols used for downlink transmission in the second subframe is smaller than that used for uplink transmission. The number of symbols.
  • the first reference signal is carried in a first subframe, and a location of the first reference signal is a location of the first reference signal in the first subframe, where The second reference signal is carried in the second sub In the frame, a position of the second reference signal is a position of the second reference signal in the second subframe, a time domain position of the first reference signal and a time domain position of the second reference signal The same as the time domain position of the first reference signal in the first subframe and the time domain position of the second reference signal in the second subframe, the frequency domain of the first reference signal The location is the same as the frequency domain location of the second reference signal, the frequency domain location of the first reference signal in the first subframe and the frequency domain of the second reference signal in the second subframe.
  • the number of symbols used for downlink transmission in the first subframe is greater than the number of symbols used for uplink transmission, and the number of symbols used for downlink transmission in the second subframe is smaller than that for uplink. The number of symbols transmitted.
  • the first subframe includes a symbol for downlink transmission, a guard time GP, and a symbol for uplink transmission, where the first subframe includes a symbol corresponding to the uplink transmission.
  • the uplink transmission includes a hybrid automatic repeat request to confirm the HARQ-ACK transmission, and the downlink transmission corresponding to the symbol for the downlink transmission included in the first subframe includes a downlink control transmission, a downlink data transmission, and the first reference signal transmission;
  • the second subframe includes a symbol for downlink transmission, a guard time GP and a symbol for uplink transmission, and a downlink transmission corresponding to the symbol for downlink transmission included in the second subframe includes downlink control transmission, where The uplink transmission corresponding to the symbol for uplink transmission included in the second subframe includes an uplink control transmission, an uplink data transmission, and the second reference signal transmission.
  • the first subframe starts with a symbol for downlink transmission included in the first subframe, and ends with a symbol for uplink transmission included in the first subframe.
  • the second subframe starts with a symbol for downlink transmission included in the second subframe, and terminates with a symbol for uplink transmission included in the second subframe.
  • the time domain position of the first reference signal in the first subframe is the same as the time domain position of the second reference signal in the second subframe, specifically
  • the symbol index occupied by the first reference signal in the first subframe is the same as the symbol index occupied by the second reference signal in the second subframe.
  • the first reference signal is located in a third symbol in the first subframe
  • the second reference signal is located in a third symbol in the second subframe.
  • the first device is a user equipment
  • the transceiver module is configured to receive the first reference signal according to a location of the first reference signal; according to the second reference signal. The location transmits the second reference signal.
  • the first device is a base station
  • the transceiver module is configured to send the first reference signal according to a location of the first reference signal, and according to the second reference signal.
  • the location receives the second reference signal.
  • a fifth aspect of the present invention provides a user equipment, including:
  • a determining module configured to determine a time-frequency resource of the control channel
  • the receiving module is configured to receive downlink control information according to the time-frequency resource of the control channel.
  • the determining module is specifically configured to determine a time-frequency resource of the first control channel, and determine a time-frequency resource of the second control channel, where the receiving module is specifically configured to perform according to the first control
  • the time-frequency resource of the channel detects the first downlink control information; and detects the second downlink control information according to the time-frequency resource of the second control channel.
  • the symbol occupied by the time-frequency resource of the first control channel is located before the symbol occupied by the time-frequency resource of the second control channel.
  • the time-frequency resource of the first control channel occupies i symbols, and the corresponding symbol l 0 , . . . , l i-1 , i is a positive integer greater than or equal to 1; the second control The time-frequency resource of the channel starts from the symbol l i+k , the k is a positive integer greater than 1 and the symbol l i to the symbol l i+k-1 is used for reference signal transmission, the reference signal is used for Demodulation of the second control channel and/or data.
  • the time-frequency resource of the first control channel occupies i symbols, and the corresponding symbol l 0 , . . . , l i-1 , i is a positive integer greater than or equal to 1;
  • the time-frequency resource of the control channel starts from the symbol l i , or the time-frequency resource of the second control channel is located on the symbol after the symbol l i-1 ; the second control channel and the downlink data are multiplexed with the symbol l i-
  • the time-frequency resource corresponding to the symbol after 1 is.
  • the determining module is specifically configured to determine a time-frequency resource of the first control channel in the first subframe, and determine a time-frequency resource of the second control channel in the first subframe;
  • a subframe includes a symbol for downlink transmission, a guard time GP and a symbol for uplink transmission, and an uplink transmission corresponding to a symbol for uplink transmission included in the first subframe includes a hybrid automatic repeat request acknowledge HARQ-ACK And transmitting, the downlink transmission corresponding to the symbol for downlink transmission included in the first subframe includes downlink control transmission, downlink data transmission, and first reference signal transmission; and the downlink subframe includes The symbol includes a symbol occupied by a time-frequency resource of the first control channel and a symbol occupied by a time-frequency resource of the second control channel.
  • the time-frequency resource of the first control channel occupies i symbols in the first subframe, and corresponds to the first symbol to the ith symbol in the first subframe.
  • i is a positive integer greater than or equal to 1
  • the time-frequency resource of the second control channel starts from an i+++1th symbol in the first subframe, and the k is greater than or equal to An integer
  • the i+1th symbol to the (i+k)th symbol in the first subframe are used for reference signal transmission, and the reference signal is used for demodulation of the second control channel and/or data
  • the l-k1th symbol to the lth symbol in the first subframe are symbols for uplink transmission in the first subframe, and the l is the number of symbols included in the first subframe, Let k1 be a positive integer greater than or equal to 1.
  • the time-frequency resource of the first control channel occupies i symbols in the first subframe, and corresponds to the first symbol to the ith symbol in the first subframe.
  • i is a positive integer greater than or equal to 1;
  • a time-frequency resource of the second control channel starts from an i+1th symbol in the first subframe, or a time-frequency resource of the second control channel is located
  • the symbol after the i-th symbol in the first subframe; the second control channel and the downlink data multiplex the ith symbol in the first subframe to the ith in the first subframe a time-frequency resource corresponding to the +k2 symbol, wherein the k2 is a positive integer greater than 1; the i+k2+1th symbol in the first subframe is a guard time GP in the first subframe;
  • the i+k2+2 symbols to the 1st symbol in the first subframe are symbols for uplink transmission in the first subframe, and the 1 is the number of symbols included in the first subframe.
  • the determining module is specifically configured to determine a time-frequency resource of the first control channel in the second subframe, and determine a time-frequency resource of the second subframe without the second control channel;
  • the second subframe includes a symbol for downlink transmission, a guard time GP and a symbol for uplink transmission, and a downlink transmission corresponding to the symbol for downlink transmission included in the second subframe includes downlink control transmission, where
  • the uplink transmission corresponding to the symbol for uplink transmission included in the two subframes includes the second reference signal transmission, the uplink data transmission, and the uplink control transmission.
  • the symbol for downlink transmission included in the second subframe is the first symbol in the second subframe
  • the time-frequency resource occupation of the first control channel is The first symbol in the second subframe
  • the determining module is further configured to determine, according to the first downlink control information, Time-frequency resources of the second control channel.
  • the first downlink control information is carried in a subframe n
  • the second control channel is carried in a subframe n
  • the first downlink control information is carried in a subframe n
  • the second control channel is carried in a subframe n+1; the n is a positive integer.
  • the receiving module is further configured to receive, according to the first downlink control information and the second downlink control information, a downlink shared channel, where the first downlink control information includes The time-frequency resource information of the second downlink control channel and/or the time-frequency resource information of the downlink shared channel; the second downlink control information includes modulation and coding information of the downlink shared channel.
  • the first control channel performs demodulation according to a reference signal carried in a time-frequency resource of the first control channel.
  • the determining module is specifically configured to determine a time-frequency resource of a subframe n control channel; if the subframe n belongs to a subframe set one, the determining module follows a preset rule. Determining a time-frequency resource of the subframe n control channel; if the subframe n belongs to the subframe set 2, the determining module determines the time-frequency resource of the subframe n control channel according to the downlink control signaling;
  • the subframe set one includes a subframe carrying a synchronization signal and/or system information, and the subframe set two does not include a subframe carrying a synchronization signal and/or system information; the n is an integer greater than or equal to zero.
  • the determining module is specifically configured to determine, according to downlink control signaling carried in the subframe nk, a time-frequency resource of the subframe n control channel, where k is an integer greater than or equal to 0. .
  • the determining module is specifically configured to determine a time-frequency resource of the subframe n control channel according to downlink control signaling carried in the subframe n-1.
  • the time-frequency resource time domain of the subframe n control channel occupies 2 symbols.
  • control channel includes a control channel set one
  • the determining module is specifically configured to determine a time-frequency resource of the control channel set one; and the control channel in the control channel set one uses a discrete transmission the way.
  • control channel includes a control channel set 1 and a control channel set 2.
  • the determining module is specifically configured to determine a time-frequency resource of the control channel set 1; and determine a time frequency of the control channel set 2
  • the control channel in the control channel set 1 adopts a discrete transmission mode
  • the control channel in the control channel set 2 adopts a centralized transmission mode.
  • the determining module is further configured to: detect downlink control information in the subframe n; determine, according to the downlink control information detected by the subframe n, the subframe n+k control channel set one For time-frequency resources, the n is an integer, and the k is a positive integer greater than or equal to 1.
  • the determining module is further configured to determine time-frequency resources of the subframe n+k control channel set 2 according to the time-frequency resources of the subframe set n+k control channel set one.
  • the subframe carrying the control channel does not carry synchronization signals and/or system information.
  • the determining module is specifically configured to determine a time-frequency resource of a basic set of the control channel, and detect downlink control information based on the time-frequency resource of the basic set; The downlink control information determines a time-frequency resource of the extended set of the control channels.
  • the receiving module is further configured to receive system information, where the determining module is further configured to determine, according to the system information, a time-frequency resource of a basic set of the control channels.
  • the determining module is further configured to determine, according to the system information, a number of symbols occupied by a time-frequency resource of a basic set of the control channel; or determine, according to the system information, And determining, according to the system information, the number of physical resource blocks occupied by the time-frequency resource of the basic set of the control channel; or, according to the system information, determining the number of physical resource blocks occupied by the time-frequency resource of the basic set of the control channel; Determining, by the system information, number information of resource block pairs occupied by time-frequency resources of a basic set of the control channel; or determining, according to the system information, subcarriers occupied by time-frequency resources of a basic set of the control channel And determining, according to the system information, the number of control channel units CCE corresponding to the time-frequency resources of the basic set of the control channels.
  • the determining module is specifically configured to determine a time-frequency resource of a basic set of the control channels according to a preset rule.
  • the preset rule occupies 1 symbol for a time-frequency resource of a basic set of the control channels.
  • the receiving module is further configured to receive system information, where the determining module is configured to determine, according to the system information, a physical resource occupied by a time-frequency resource of a basic set of the control channel.
  • the number of blocks or the number of control channel units corresponding to the time-frequency resource of the basic set of the control channel or the number of physical resource blocks occupied by the time-frequency resource of the basic set of the control channel or the control channel The number of resource blocks occupied by the time-frequency resource of the basic set or the number of sub-carriers occupied by the time-frequency resource of the basic set of the control channel; the user equipment determines the time-frequency resource of the control channel according to a predefined rule
  • the number of symbols occupied by the time-frequency resource of the control channel is a fixed value, or the number of symbols occupied by the time-frequency resource of the control channel is a preset value. , for example, 2 symbols.
  • the user equipment further includes: a detecting module, configured to detect downlink control information based on the time-frequency resource of the basic set in the subframe n; the determining module is specifically configured to be used according to the The downlink control information detected by the subframe n determines a time-frequency resource of the extended set of the control channel of the subframe n+k, where n is an integer, and the k is a positive integer greater than or equal to 0. Optionally, the value of k is equal to one.
  • the determining module is further configured to determine, according to the detected downlink control information, whether an extended set of the control channel exists; or determine, according to the detected downlink control information, The transmission mode corresponding to the extended set of control channels.
  • the basic set exists in all subframes including symbols for downlink transmission.
  • the extended set does not exist in a subframe that carries synchronization signals and/or system information.
  • a sixth aspect of the present invention provides a base station, including:
  • a determining module configured to determine a time-frequency resource of the control channel
  • a sending module configured to send downlink control information according to the time-frequency resource of the control channel.
  • the determining module is specifically configured to determine a time-frequency resource of the first control channel, and determine a time-frequency resource of the second control channel, where the sending module is specifically configured to perform, according to the first control Channel time and frequency
  • the source sends the first downlink control information, and sends the second downlink control information according to the time-frequency resource of the second control channel.
  • the symbol occupied by the time-frequency resource of the first control channel is located before the symbol occupied by the time-frequency resource of the second control channel.
  • the time-frequency resource of the first control channel occupies i symbols, and the corresponding symbol l 0 , . . . , l i-1 , i is a positive integer greater than or equal to 1; the second control The time-frequency resource of the channel starts from the symbol l i+k , the k is a positive integer greater than 1 and the symbol l i to the symbol l i+k-1 is used for reference signal transmission, the reference signal is used for Demodulation of the second control channel and/or data.
  • the time-frequency resource of the first control channel occupies i symbols, and the corresponding symbol l 0 , . . . , l i-1 , i is a positive integer greater than or equal to 1;
  • the time-frequency resource of the control channel starts from the symbol l i , or the time-frequency resource of the second control channel is located on the symbol after the symbol l i-1 ; the second control channel and the downlink data are multiplexed with the symbol l i-
  • the time-frequency resource corresponding to the symbol after 1 is.
  • the determining module is specifically configured to determine a time-frequency resource of the first control channel in the first subframe, and determine a time-frequency resource of the second control channel in the first subframe;
  • a subframe includes a symbol for downlink transmission, a guard time GP and a symbol for uplink transmission, and an uplink transmission corresponding to a symbol for uplink transmission included in the first subframe includes a hybrid automatic repeat request acknowledge HARQ-ACK And transmitting, the downlink transmission corresponding to the symbol for downlink transmission included in the first subframe includes downlink control transmission, downlink data transmission, and first reference signal transmission; and the downlink subframe includes The symbol includes a symbol occupied by a time-frequency resource of the first control channel and a symbol occupied by a time-frequency resource of the second control channel.
  • the time-frequency resource of the first control channel occupies i symbols in the first subframe, and corresponds to the first symbol to the ith symbol in the first subframe.
  • i is a positive integer greater than or equal to 1
  • the time-frequency resource of the second control channel starts from an i+++1th symbol in the first subframe, and the k is greater than or equal to An integer
  • the i+1th symbol to the (i+k)th symbol in the first subframe are used for reference signal transmission, and the reference signal is used for demodulation of the second control channel and/or data
  • the l-k1th symbol to the lth symbol in the first subframe are symbols for uplink transmission in the first subframe, and the l is the number of symbols included in the first subframe, Let k1 be a positive integer greater than or equal to 1.
  • the time-frequency resource of the first control channel occupies i symbols in the first subframe, and corresponds to the first symbol to the ith symbol in the first subframe.
  • i is a positive integer greater than or equal to 1;
  • a time-frequency resource of the second control channel starts from an i+1th symbol in the first subframe, or a time-frequency resource of the second control channel is located
  • the symbol after the i-th symbol in the first subframe; the second control channel and the downlink data multiplex the ith symbol in the first subframe to the ith in the first subframe a time-frequency resource corresponding to the +k2 symbol, the k2 being a positive integer greater than 1;
  • the i+k2+1th symbol in the first subframe is a guard time GP in the first subframe;
  • the i+k2+2 symbols to the 1st symbol in the first subframe are symbols for uplink transmission in the first subframe, and the 1 is the number of symbols included in the first subframe.
  • the determining module is specifically configured to determine a time-frequency resource of the first control channel in the second subframe, and determine a time-frequency resource of the second subframe without the second control channel;
  • the second subframe includes a symbol for downlink transmission, a guard time GP and a symbol for uplink transmission, and a downlink transmission corresponding to the symbol for downlink transmission included in the second subframe includes downlink control transmission, where Symbol corresponding to uplink transmission included in the two subframes
  • the uplink transmission includes the second reference signal transmission, the uplink data transmission, and the uplink control transmission.
  • the symbol for downlink transmission included in the second subframe is the first symbol in the second subframe
  • the time-frequency resource occupation of the first control channel is The first symbol in the second subframe
  • the first downlink control information includes time-frequency resource information of the second control channel.
  • the first downlink control information is carried in a subframe n
  • the second control channel is carried in a subframe n
  • the first downlink control information is carried in a subframe n
  • the second control channel is carried in a subframe n+1; the n is a positive integer.
  • the sending module is further configured to send a downlink shared channel, where the first downlink control information includes time-frequency resource information of the second downlink control channel and/or the downlink Time-frequency resource information of the shared channel; the second downlink control information includes modulation and coding information of the downlink shared channel.
  • the sending module is further configured to send a reference signal in a time-frequency resource of the first control channel, where the reference signal is used for demodulation of the first control channel.
  • the sending module is further configured to send downlink control signaling, where the downlink control signaling is used to determine a time-frequency resource of a subframe n control channel, where the subframe n does not carry synchronization Signal and/or system information, the n being an integer greater than or equal to zero.
  • the sending module is further configured to send the downlink control signaling in a subframe n-k, where the k is an integer greater than or equal to 0. Optionally, the k is equal to one.
  • the determining module is specifically configured to determine a time-frequency resource of the control channel of the subframe n according to a predefined rule; the subframe n carries a synchronization signal and/or system information.
  • the pre-defined rule may be that the number of symbols occupied by the time-frequency resource of the control channel is a fixed value, or the number of symbols occupied by the time-frequency resource of the control channel is a preset value, for example, two symbols. .
  • control channel includes a control channel set one
  • the determining module is specifically configured to determine a time-frequency resource of the control channel set one
  • the sending module is further configured to adopt a discrete transmission mode based on The time-frequency resource of the control channel set one transmits a control channel.
  • control channel includes a control channel set 1 and a control channel set 2.
  • the determining module is specifically configured to determine a time-frequency resource of the control channel set 1; and determine a time frequency of the control channel set 2
  • the control channel in the control channel set 1 adopts a discrete transmission mode
  • the control channel in the control channel set 2 adopts a centralized transmission mode.
  • the sending module is further configured to send downlink control information in the subframe n, where the downlink control information includes time-frequency resource information of the subframe n+k control channel set one, the As an integer, the k is a positive integer greater than or equal to 1.
  • the determining module is specifically configured to determine a time-frequency resource of a basic set of the control channel, where the sending module is specifically configured to send downlink control based on the time-frequency resource of the basic set.
  • Information, the downlink control information includes time-frequency resource information of an extended set of the control channels.
  • the sending module is further configured to send system information, where the system information includes time-frequency resource information of a basic set of the control channels.
  • the system information includes time-frequency resource information of a basic set of the control channel, where the system information includes a number of symbols occupied by a time-frequency resource of a basic set of the control channels.
  • Information or, the system information includes number information of physical resource block pairs occupied by time-frequency resources of a basic set of the control channels; or, the system information includes time-frequency resource occupation of a basic set of the control channels.
  • the number information of the physical resource blocks; or the system information includes the number of resource blocks occupied by the time-frequency resources of the basic set of the control channels; or the system information includes a basic set of the control channels
  • the number of subcarriers occupied by the time-frequency resource; or the system information includes the number of CCEs of the control channel unit corresponding to the time-frequency resource of the basic set of the control channel.
  • the determining module is specifically configured to determine a time-frequency resource of a basic set of the control channels according to a preset rule.
  • the preset rule occupies 1 symbol for a time-frequency resource of a basic set of the control channels.
  • the sending module is specifically configured to send downlink control information according to the basic set of time-frequency resources in the subframe n, where the downlink control information includes the subframe n+k the control channel.
  • Time-frequency resource information of the extended set the n is an integer, and the k is a positive integer greater than or equal to zero.
  • the value of k is equal to one.
  • the downlink control information includes information indicating whether an extended set of the control channel exists; or the downlink control information includes information indicating a transmission mode corresponding to an extended set of the control channel.
  • the basic set exists in all subframes including symbols for downlink transmission.
  • the extended set does not exist in a subframe that carries synchronization signals and/or system information.
  • the embodiment of the present invention has the following advantages: by determining the position of the reference signal, the first device can perform uplink and downlink interference estimation through the reference signal, thereby better transmitting the reference signal or receiving the reference signal, thereby Better support for dynamic TDD and maintain forward compatibility.
  • FIG. 1 is a schematic diagram of an embodiment of an information sending method and a receiving method according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of another embodiment of a method for sending information and receiving a method according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a position of a first reference signal in a first subframe according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram showing a position of a second reference signal in a second subframe according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of another position of a first reference signal in a first subframe according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of another position of a second reference signal in a second subframe according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of another embodiment of a method for sending information and receiving a method according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of an embodiment of a method for receiving information according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of an embodiment of a method for sending information according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a time domain of a first subframe according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of another first subframe time domain according to an embodiment of the present invention.
  • FIG. 12 is a schematic diagram of an embodiment of a device according to an embodiment of the present invention.
  • FIG. 13 is a schematic diagram of an embodiment of a user equipment according to an embodiment of the present invention.
  • FIG. 14 is a schematic diagram of an embodiment of a base station according to an embodiment of the present invention.
  • the embodiments of the present invention provide a method for sending information, a receiving method, a user equipment, and a base station, which can better support dynamic TDD and maintain forward compatibility.
  • the present invention is mainly applied to a 5G communication system, a long term evolution (Long Term Evolution, English abbreviation: LTE) system or an LTE evolution system, and can be applied to single carrier and multiple carrier.
  • LTE Long Term Evolution, English abbreviation: LTE
  • LTE evolution system Long Term Evolution, English abbreviation: LTE
  • an embodiment of an information sending method and a receiving method in an embodiment of the present invention includes:
  • the first device determines a location of the reference signal.
  • the first device may be referred to as a user equipment, or may be a base station
  • the reference signal may include a first reference signal and a second reference signal, where the first reference signal may be referred to as a first demodulation reference signal DMRS, and the second reference
  • the signal may be referred to as a second demodulation reference signal DMRS
  • the first reference signal may be used for uplink data demodulation
  • the second reference signal may be used for downlink data demodulation
  • the position of the first reference signal time domain position and/or frequency
  • the location of the domain and the location of the second reference signal time domain location and/or frequency domain location
  • the first device may pass the first reference
  • the signal and the second reference signal better perform uplink and downlink interference estimation, thereby better performing interference cancellation between uplink lines, thereby better utilizing TDD and better matching actual services, thereby providing spectrum efficiency of the system. Better provide low latency services.
  • the first device sends a reference signal or receives a reference signal according to the determined position of the reference signal.
  • the first device after the first device determines the location of the reference signal, the first device sends the reference signal or receives the reference signal according to the determined position of the reference signal.
  • the first device receives the first reference signal according to the location of the first reference signal, and sends the second reference signal according to the location of the second reference signal; or the first device sends the second reference according to the location of the first reference signal. And receiving a second reference signal according to a location of the second reference signal.
  • the first device may be a user equipment, or may be a base station.
  • the first device is a user equipment and the first device is a base station.
  • FIG. 2 Another embodiment of the method for sending information and receiving the information in the embodiment of the present invention includes:
  • the user equipment determines a location of the first reference signal, where the first reference signal is used for downlink data demodulation;
  • the user equipment determines a location of the second reference signal, where the second reference signal is used for uplink data demodulation;
  • step 201 and step 202 are not limited, and the interdependence between step 201 and step 202 is not limited.
  • the time domain location of the first reference signal and the time domain location of the second reference signal are the same; or the time domain location of the first reference signal, the frequency domain location, and the time domain location of the second reference signal.
  • the frequency domain location is the same.
  • the time domain location of the first reference signal is the same as the time domain location of the second reference signal.
  • the same time domain position of the first reference signal and the time domain position of the second reference signal may also mean that the symbol index of the symbol occupied by the first reference signal is the same as the symbol index of the symbol occupied by the second reference signal.
  • the frequency domain position of the first reference signal is the same as the frequency domain position of the second reference signal.
  • the user equipment may carry the reference signal by using the transmission unit, and the user equipment may also carry the reference signal by using the subframe.
  • the first reference signal is carried in the first transmission unit
  • the position of the first reference signal is the position of the first reference signal in the first transmission unit
  • the second reference signal is carried in the second transmission unit
  • the position of the second reference signal
  • the time domain position of the first reference signal is the same as the time domain position of the second reference signal, specifically the time domain position of the first reference signal in the first transmission unit
  • the time domain position of the second reference signal in the second transmission unit is the same, and the length of time corresponding to the first transmission unit is equal to the length of time corresponding to the second transmission unit.
  • the transmission unit in all embodiments of the present invention may also be referred to as a transmission time unit; the transmission time unit may be a subframe, may also be a transmission time interval, and may also be a time required to complete a shared channel transmission.
  • the length includes control channel transmission corresponding to the shared channel, reference signal transmission, and transmission of the shared channel.
  • the frequency domain position of the first reference signal is the same as the frequency domain position of the second reference signal, the frequency domain position of the first reference signal in the first transmission unit and the second reference signal in the second transmission unit.
  • the frequency domain location is the same.
  • the location of the time-frequency resource of the first reference signal in the first transmission unit is the same as the location of the time-frequency resource in the second transmission unit.
  • the first reference signal is located in the third symbol in the first transmission unit, and the second reference signal is located in the third symbol in the second transmission unit.
  • the first reference signal is carried in the first subframe
  • the position of the first reference signal is the position of the first reference signal in the first subframe
  • the second reference signal is carried in the second subframe
  • the location of the second reference signal For the position of the second reference signal in the second subframe, the time domain position of the first reference signal and the time domain position of the second reference signal are the same as the time domain position of the first reference signal in the first subframe and the second
  • the reference signal has the same time domain position in the second subframe, and the frequency of the first reference signal
  • the domain location is the same as the frequency domain location of the second reference signal
  • the frequency domain location of the first reference signal in the first subframe is the same as the frequency domain location of the second reference signal in the second subframe, and is used in the first subframe.
  • the number of symbols transmitted in the downlink is greater than the number of symbols used for uplink transmission, and the number of symbols used for downlink transmission in the second subframe is smaller than the number of symbols used for uplink transmission.
  • the frequency domain position of the first reference signal in the first subframe is the same as the frequency domain position of the second reference signal in the second subframe, and may refer to the frequency occupied by the first reference signal in the first subframe.
  • the index of the domain resource is the same as the index of the occupied frequency domain resource of the second reference signal in the second subframe, or the resource element occupied by the first reference signal in the first subframe (English full name: Resource
  • the index of the element, the English abbreviation: Re) is the same as the index of the occupied resource element of the second reference signal in the second subframe; the frequency band occupied by the first reference signal and the frequency band occupied by the second reference signal may be the same frequency band, Can be different frequency bands.
  • the first subframe includes a symbol for downlink transmission, a guard time GP and a symbol for uplink transmission
  • the uplink transmission corresponding to the symbol for uplink transmission included in the first subframe includes a hybrid automatic repeat request.
  • the HARQ-ACK transmission is confirmed, and the downlink transmission corresponding to the symbol for downlink transmission included in the first subframe includes downlink control transmission, downlink data transmission, and first reference signal transmission.
  • the first subframe starts with a symbol for downlink transmission included in the first subframe, and terminates with a symbol for uplink transmission included in the first subframe.
  • the second subframe includes a symbol for downlink transmission, a guard time GP and a symbol for uplink transmission, and a downlink transmission corresponding to the symbol for downlink transmission included in the second subframe includes downlink control transmission,
  • the uplink transmission corresponding to the symbol for uplink transmission included in the second subframe includes uplink control transmission, uplink data transmission, and second reference signal transmission.
  • the second subframe starts with a symbol for downlink transmission included in the second subframe, and terminates with a symbol for uplink transmission included in the second subframe.
  • the time domain position of the first reference signal in the first subframe is the same as the time domain position of the second reference signal in the second subframe, and is specifically a symbol occupied by the first reference signal in the first subframe.
  • the index is the same as the symbol index occupied by the second reference signal in the second subframe.
  • the first reference signal is located in the third symbol in the first subframe
  • the second reference signal is located in the third symbol in the second subframe.
  • FIG. 3 shows a first subframe time domain structure example 1, in which the first symbol of the first subframe is a symbol for downlink control transmission, and the first reference signal is carried in the third subframe of the first subframe.
  • the GP occupies the 13th symbol of the first subframe, and the 14th symbol of the first subframe is used for uplink control transmission.
  • 4 shows a second subframe time domain structure example 1, in which the first symbol of the second subframe is a symbol for downlink control transmission, and the second reference signal is carried by the third subframe of the second subframe.
  • the GP occupies the second symbol of the second subframe, and optionally the 14th symbol of the second subframe is used for uplink control transmission.
  • the position of the first reference signal in the first subframe in FIGS. 3 and 4 is the same as the position of the second reference signal in the second subframe.
  • the reference signal is placed in front of the sub-frame and placed in the third symbol, and the fast demodulation and decoding of the data can be performed while ensuring the same position of the first reference signal and the second reference signal. .
  • FIG. 5 shows a second subframe time domain structure example 2, in which the first symbol of the first subframe is a symbol for downlink control transmission, and the first reference signal is carried in the third subframe of the first subframe.
  • the third symbol and the remaining REs on the fourth symbol can be used for other reference signal transmission, or can be used for downlink data transmission, in the frequency domain of FIG.
  • FIG. 6 shows a second subframe time domain structure example 2, in which the first symbol of the second subframe is a symbol for downlink control transmission, and the second reference signal is carried by the third subframe of the second subframe.
  • the third symbol and the remaining REs on the fourth symbol can be used for other reference signal transmission, or can be used for uplink data transmission, in the frequency domain of Figure 6.
  • Two adjacent REs for the first reference signal may respectively correspond to different antenna ports of the first reference signal, and the GP occupies the second symbol of the second subframe, optionally the 14th symbol of the second subframe Used for uplink control transmission.
  • the positions of the first reference signal in the first subframe and the position of the second reference signal in the second subframe in FIGS. 5 and 6 are the same.
  • the first subframe may be a primary downlink subframe or a DL centric subframe; and optionally, the second subframe may be a primary uplink subframe or a UL centric subframe. All symbols in the uplink subframe are used for uplink transmission;
  • the first reference signal in the embodiment of the present invention may also be referred to as a first demodulation reference signal (DMRS), and the second reference signal may also be referred to as a second demodulation reference signal (DMRS).
  • DMRS first demodulation reference signal
  • DMRS second demodulation reference signal
  • the symbols in all the embodiments of the present invention may refer to time domain symbols, for example, may be orthogonal frequency division multiplexing (English full name: Orthogonal Frequency Division Multiplexing, English abbreviation: OFDM) symbol, or may be single carrier frequency division multiple access (English) Full name: Single-carrier Frequency-Division Multiple Access, English abbreviation: SC-FDMA) symbol.
  • OFDM Orthogonal Frequency Division Multiplexing
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • the user equipment receives the first reference signal according to the location of the first reference signal.
  • the user equipment sends the second reference signal according to the location of the second reference signal.
  • step 203 and step 204 are not limited, and the interdependence between step 203 and step 204 is not limited.
  • the position (time domain position and/or frequency domain position) of the first reference signal for downlink data demodulation and the second reference signal for uplink data demodulation are the same, so that the reference signal can be further Good uplink and downlink interference estimation, so as to better eliminate interference between uplink and downlink, so as to better utilize dynamic TDD and better match actual services, thereby providing system spectrum efficiency and better providing low latency. business.
  • the transmission direction of a sub-frame or a transmission unit can be dynamically changed, and can be dynamically applied to uplink data transmission or downlink data transmission, so as to better match current service requirements; for example, if the current service downlink service
  • dynamic TDD can dynamically change most of the subframes into downlink data transmission, so that downlink services can be transmitted faster and better, providing system spectrum efficiency and reducing downlink packet delay.
  • the subframe direction can be dynamically changed, different cells may adopt different directions in the same subframe or the same transmission unit, thereby causing serious uplink and downlink interference, so that dynamic TDD cannot obtain better applications, or restrict dynamic TDD.
  • the sequence of the first reference signal and the second reference signal may be a predefined sequence, so that different cells can better interfere with the reference signal. Estimation and interference cancellation look, thus greatly reducing uplink and downlink interference and improving the performance of dynamic TDD.
  • both the first subframe and the second subframe can enable self-contained control and pilot transmission, that is, the control corresponding to the current subframe data can be fed back or sent in the current subframe, It relies on other sub-frames, so that other sub-frames can be occupied by future services at any time, which can better support forward compatibility.
  • FIG. 7 Another embodiment of the method for sending information and receiving the information in the embodiment of the present invention includes:
  • the base station determines a location of the first reference signal, where the first reference signal is used for downlink data demodulation;
  • the base station determines a location of the second reference signal, where the second reference signal is used for uplink data demodulation;
  • step 301 and step 302 are not limited, and the interdependence between step 301 and step 302 is not limited.
  • steps 301 and 302 of the embodiment are similar to the steps 201 and 202 of the foregoing embodiment, and are not described in this embodiment.
  • the base station sends the first reference signal according to the location of the first reference signal.
  • the base station receives the second reference signal according to the location of the second reference signal.
  • step 303 and step 304 the order of the steps between step 303 and step 304 is not limited, and the interdependence between step 303 and step 304 is not limited.
  • the above embodiment mainly describes the technical solution of the present invention from the perspective of a transmission unit and a subframe.
  • the following describes the technical solution of the present invention from the structure of the control channel:
  • an embodiment of a method for receiving information in an embodiment of the present invention includes:
  • the user equipment determines a time-frequency resource of the control channel.
  • the user equipment receives downlink control information according to a time-frequency resource of the control channel.
  • determining, by the user equipment, time-frequency resources of the control channel includes:
  • the user equipment determines a time-frequency resource of the subframe n control channel
  • the user equipment determines the time-frequency resource of the subframe n control channel according to a preset rule
  • the user equipment determines the time-frequency resource of the subframe n control channel according to the downlink control signaling;
  • the subframe set 1 includes a subframe carrying a synchronization signal and/or system information, and the subframe set 2 does not include a subframe carrying the synchronization signal and/or system information;
  • n is an integer greater than or equal to zero.
  • the subframe set 1 includes a subframe carrying a synchronization signal and/or system information
  • the subframe set 2 does not include a subframe carrying the synchronization signal and/or system information; specifically, for example, the subframe set 1 may be a bearer synchronization.
  • the subframe of the signal and/or system information; the subframe set 2 may be a subframe in the radio frame except for the subframe carrying the synchronization signal and/or the system information, which may carry the downlink control channel.
  • the system information here can be a master information block.
  • the user equipment determines the time-frequency resource of the subframe n control channel according to the downlink control signaling, and may determine, by the user equipment, the time-frequency resource of the subframe n control channel according to the downlink control signaling carried in the subframe nk.
  • k is an integer greater than or equal to zero. For example, the value of k is equal to 1.
  • the user equipment determines the time-frequency resource of the subframe n control channel according to the downlink control signaling carried in the subframe n-1.
  • the subframe n-k may be represented as the kth subframe from the front of the subframe n, and the subframe n-k and the subframe n may be in the same radio frame or may not be in the same radio frame. When not in the same radio frame, subframe n-k and subframe n are in two adjacent radio frames.
  • the downlink control signaling may be downlink control information or information carried in a downlink control information format.
  • the user equipment determines the time-frequency resource of the subframe n control channel according to a preset rule, and may occupy 2 symbols for the time-frequency resource of the subframe n control channel; or may control the channel for the subframe n N1 symbols occupied by the frequency resource, N1 is a positive integer greater than or equal to 1 and less than or equal to 4; or the number of symbols occupied by the time-frequency resource of the subframe n control channel can be indicated by a system message, that is, can be indicated by the MIB.
  • the embodiment of the present invention determines the time-frequency resources of the control channel of the subframe set 2 by using the downlink control signaling, so that the control channel resources in the subframe set 2 can be dynamically changed, so that the control can be set according to actual requirements.
  • Channel resources minimize the fixed downlink resources, so that more resources can be applied to the dynamic changes of the uplink and downlink, and the dynamic TDD can be better utilized.
  • the control channel resources in the subframe set 2 are indicated by the downlink control signaling, which can better support forward compatibility.
  • the The downlink control signaling indicates that the old user equipment has no downlink control channel resources in the subframe, thereby enabling support for new features and being compatible with the old user equipment.
  • control channel includes a control channel set one, and the user equipment determines the time-frequency resource of the control channel, which may include:
  • the user equipment determines a time-frequency resource of the control channel set one
  • the control channel adopts a discrete transmission mode, and may refer to a control channel carrying a downlink control information DCI format transmitted in a time-frequency resource of the control channel, and the occupied time-frequency resources are discretely distributed on the time-frequency resources of the control channel.
  • a resource element group corresponding to a control channel carrying a downlink control information DCI format is discretely distributed in a time-frequency resource of the control channel.
  • control channel includes a control channel set 1 and a control channel set 2, and the user equipment determines the time-frequency resource of the control channel, including:
  • the user equipment determines a time-frequency resource of the control channel set one
  • the user equipment determines a time-frequency resource of the control channel set 2;
  • the control channel in the control channel set 1 adopts a discrete transmission mode
  • the control channel in the control channel set 2 adopts a centralized transmission mode
  • the control channel adopts a centralized transmission mode, and may refer to a control channel carrying a downlink control information DCI format transmitted in the time-frequency resource of the control channel, and the occupied time-frequency resources will be concentrated on the time-frequency resources of the control channel.
  • the resource element group corresponding to the control channel carrying the DCI format of the downlink control information is concentrated on a part of the time-frequency resources of the time-frequency resources of the control channel.
  • the centralized transmission of the control channel enables the beamforming transmission mode such that the control channel is concentrated corresponding to a certain beam direction and improves the coverage of the control channel.
  • the centralized transmission enables the user to jointly use the reference signal in the centralized resource as a channel. It is estimated to improve the channel estimation performance and improve the performance of the control channel based on the beam transmission mode.
  • the user equipment determines the time-frequency resource of the control channel set one, which may include:
  • the user equipment detects downlink control information in subframe n;
  • the user equipment determines, according to the downlink control information detected by the subframe n, the time-frequency resource of the subframe n+k control channel set one, where n is an integer, and k is a positive integer greater than or equal to 1;
  • the user equipment determines the time-frequency resource of the subframe set n+k control channel set 2 according to the time-frequency resource of the subframe set n+k control channel set one. Specifically, the time-frequency resource of the control channel set 1 may be subtracted from the total time-frequency resource corresponding to the control channel by the user equipment, and the time-frequency resource of the control channel set 2 may be obtained; or
  • the user equipment determines, according to the downlink control information detected by the subframe n, a time-frequency resource of the subframe n+k control channel set 2, where n is an integer, and k is a positive integer greater than or equal to 1.
  • subframe carrying the control channel set 2 is not a subframe carrying the synchronization signal and/or system information
  • control channel in the subframe set 1 includes only the control channel set one, and the control channel in the subframe set two may include the control channel set one and the control channel set two; whether the control channel in the subframe set two is The time-frequency resources including the control channel set 2 and the control channel set 2 may be dynamically indicated.
  • control channel set 2 is introduced in the subframe set 2 by dynamic signaling, and the control channel in the control channel set 2 is transmitted in a centralized manner, so that the control channel can be transmitted in a beamforming manner, so that the control channel is Focusing on a certain beam direction to improve the coverage of the control channel; at the same time, centralized transmission enables the user to combine the reference signals in the centralized resources for channel estimation, thereby improving channel estimation performance and improving the performance of the control channel based on the beam transmission method. .
  • determining, by the user equipment, time-frequency resources of the control channel includes:
  • the user equipment determines a time-frequency resource of a basic set of control channels
  • the user equipment detects downlink control information based on the time-frequency resources of the basic set
  • the user equipment determines the time-frequency resource of the extended set of control channels according to the detected downlink control information.
  • the user equipment determines a time-frequency resource of a basic set of control channels, including:
  • the user equipment receives system information
  • the user equipment determines the time-frequency resource of the basic set of control channels according to the system information.
  • determining, by the user equipment, the time-frequency resources of the basic set of control channels according to the system information includes:
  • the user equipment determines, according to the system information, the number of control channel elements CCE corresponding to the time-frequency resources of the basic set of control channels.
  • the user equipment determines the time-frequency resource of the basic set of control channels, including:
  • the user equipment determines a time-frequency resource of a basic set of control channels according to a preset rule.
  • the foregoing preset rule may occupy 1 symbol for the time-frequency resource of the basic set of control channels.
  • the user equipment determines the time-frequency resource of the basic set of control channels, including:
  • the user equipment receives system information
  • the device determines, according to the system information, the number of resource blocks occupied by the time-frequency resource of the basic set of the control channel or the user equipment determines, according to the system information, the number of subcarriers occupied by the time-frequency resource of the basic set of the control channel or the basic set of the control channel.
  • the predefined rule may be that the number of symbols occupied by the time-frequency resource of the control channel is a fixed value, or the control channel
  • the number of symbols occupied by the time-frequency resource is a preset value, for example, 2 symbols.
  • the user equipment detects downlink control information based on the time-frequency resources of the basic set; and determining, by the user equipment, the time-frequency resources of the extended set of control channels according to the detected downlink control information, including:
  • the user equipment detects downlink control information in the subframe n based on the time-frequency resource of the basic set
  • the user equipment determines the time-frequency resource of the extended set of the subframe n+k control channel according to the downlink control information detected by the subframe n, where n is an integer and k is a positive integer greater than or equal to 0. For example, the value of k is equal to one.
  • the user equipment determines, according to the detected downlink control information, a transmission mode corresponding to the extended set of control channels.
  • a transmission mode corresponding to the extended set is dynamically indicated as a centralized transmission mode or a discrete transmission mode.
  • the basic set exists in all subframes including symbols for downlink transmission
  • the extended set does not exist in a subframe carrying the synchronization signal and/or system information.
  • the time-frequency resource of the basic set of the control channel is determined according to a preset rule, the downlink control information is detected based on the time-frequency resource of the basic set, and the control channel is determined according to the detected downlink control information.
  • the time-frequency resources of the set are extended, so that the fixed downlink resources are minimized as the basic set of time-frequency resources, and the dynamic TDD can be better utilized.
  • the forward compatibility can be better supported. For example, when some subframes in the subframe set 2 are dynamically used for future features, the old user equipment can be dynamically instructed to have no extension in the subframe.
  • Set The downlink control channel resources are combined to enable support for new features while also being compatible with old user equipment.
  • the embodiment of the present invention can better match the transmission mode of the control channel by dynamically signaling the transmission mode of the extended set; for example, when the extended control channel is mainly used for common control signaling, the extension may be indicated.
  • the transmission mode of the set is a discrete mode.
  • the extended set signaling is mainly used for device-specific signaling
  • the centralized transmission mode may be indicated to better match the transmission mode of the control channel.
  • the user equipment determines that the time-frequency resource of the control channel may be: the user equipment determines the time-frequency resource of the first control channel; and the user equipment determines the time-frequency resource of the second control channel.
  • the determining, by the user equipment, the time-frequency resource of the first control channel may be: determining, by the user equipment, the time-frequency resource of the first control channel of the subframe n;
  • the user equipment determines the time-frequency resource of the first control channel of the subframe n according to a preset rule
  • the user equipment determines the time-frequency resource of the first control channel of the subframe n according to the downlink control signaling;
  • the subframe set 1 includes a subframe carrying a synchronization signal and/or system information, and the subframe set 2 does not include a subframe carrying the synchronization signal and/or system information;
  • n is an integer greater than or equal to zero.
  • determining, by the user equipment, the time-frequency resources of the first control channel of the subframe n according to the downlink control signaling includes:
  • the user equipment determines the time-frequency resource of the first control channel of the subframe n according to the downlink control signaling carried in the subframe n-k, where k is an integer greater than or equal to 0.
  • determining, by the user equipment, the time-frequency resources of the first control channel of the subframe n according to the downlink control signaling including:
  • the user equipment determines the time-frequency resource of the first control channel of the subframe n according to the downlink control signaling carried in the subframe n-1.
  • determining, by the user equipment, the time-frequency resources of the first control channel of the subframe n according to the preset rule including:
  • the time-frequency resource time domain of the first control channel of subframe n occupies 2 symbols.
  • the first control channel includes a first control channel set, and the user equipment determines the time-frequency resource of the first control channel, including:
  • the user equipment determines a time-frequency resource of the first control channel set one
  • the first control channel in the first control channel set 1 adopts a discrete transmission mode.
  • the first control channel adopts a discrete transmission mode, and may refer to a first control channel that carries a downlink control information DCI format transmitted in the time-frequency resource of the first control channel, and the occupied time-frequency resources are discretely distributed in the In the time-frequency resource of the control channel; for example, the resource element group corresponding to the control channel carrying the downlink control information DCI format is discretely distributed in the time-frequency resource of the control channel.
  • the first control channel includes a first control channel set 1 and a first control channel set 2, and the user equipment determines the time-frequency resource of the first control channel, including:
  • the user equipment determines a time-frequency resource of the first control channel set one
  • the user equipment determines a time-frequency resource of the first control channel set 2;
  • the first control channel in the first control channel set 1 adopts a discrete transmission mode
  • the first control channel in the first control channel set 2 adopts a centralized transmission mode
  • the first control channel adopts a centralized transmission mode, and may refer to a control channel carrying a downlink control information DCI format transmitted in a time-frequency resource of the control channel, and the occupied time-frequency resources will be concentratedly distributed on the control channel.
  • the resource element group corresponding to the control channel carrying the downlink control information DCI format is concentrated on a part of the time-frequency resources of the time-frequency resources of the control channel.
  • the centralized transmission of the control channel enables the beamforming transmission mode such that the first control channel is concentrated corresponding to a certain beam direction, and the coverage of the first control channel is improved.
  • the centralized transmission enables the user to unite the centralized resources.
  • the reference signal is used for channel estimation, thereby improving channel estimation performance and improving performance of the first control channel based on the beam transmission mode.
  • the user equipment determines the time-frequency resource of the first control channel set one, including:
  • the user equipment detects downlink control information in subframe n;
  • the user equipment determines, according to the downlink control information detected by the subframe n, the time-frequency resource of the first control channel set 1 of the subframe n+k, where n is an integer, and k is a positive integer greater than or equal to 1.
  • the method further includes:
  • the user equipment determines the time-frequency resource of the first control channel set 2 of the subframe n+k according to the time-frequency resource of the first control channel set 1 of the subframe n+k.
  • the subframe carrying the first control channel does not carry synchronization signals and/or system information.
  • present embodiment is also applicable to the first control channel in the secondary control channel in the secondary control channel mode in the following.
  • the user equipment determines that the time-frequency resource of the control channel may be: the user equipment determines the time-frequency resource of the first control channel; and the user equipment determines the time-frequency resource of the second control channel.
  • the determining, by the user equipment, the time-frequency resource of the first control channel may be: determining, by the user equipment, a time-frequency resource of a basic set of the first control channel;
  • the user equipment detects downlink control information based on the time-frequency resources of the basic set
  • the user equipment determines the time-frequency resource of the extended set of the first control channel according to the detected downlink control information.
  • the user equipment determines the time-frequency resource of the basic set of the first control channel, including:
  • the user equipment receives system information
  • the user equipment determines the time-frequency resource of the basic set of the first control channel according to the system information.
  • determining, by the user equipment, the time-frequency resource of the basic set of the first control channel according to the system information including:
  • the user equipment determines, according to the system information, the number of control channel elements CCE corresponding to the time-frequency resources of the basic set of the first control channel.
  • the user equipment determines the time-frequency resource of the basic set of the first control channel, including:
  • the preset rule is that the time-frequency resource of the basic set of the first control channel occupies 1 symbol.
  • the user equipment determines the time-frequency resource of the basic set of the first control channel, including:
  • the user equipment receives system information
  • Determining, according to the system information, the number of physical resource block pairs occupied by the time-frequency resource of the basic set of the first control channel or the number of physical resource blocks occupied by the time-frequency resource of the basic set of the first control channel or the first control channel The number of resource blocks occupied by the time-frequency resource of the basic set or the number of sub-carriers occupied by the time-frequency resource of the basic set of the first control channel or the control channel unit corresponding to the time-frequency resource of the basic set of the first control channel number;
  • the number of symbols occupied by the time-frequency resource of the first control channel determined according to a predefined rule.
  • the pre-defined rule may be that the number of symbols occupied by the time-frequency resource of the control channel is a fixed value, or the number of symbols occupied by the time-frequency resource of the control channel is a preset value, for example, two symbols. .
  • the user equipment detects the downlink control information based on the time-frequency resource of the basic set, and the user equipment determines the time-frequency resource of the extended set of the first control channel according to the detected downlink control information, including:
  • the user equipment detects downlink control information in the subframe n based on the time-frequency resource of the basic set
  • the user equipment determines, according to the downlink control information detected by the subframe n, the time-frequency resource of the extended set of the first control channel of the subframe n+k, where n is an integer, and k is a positive integer greater than or equal to 0. For example, the value of k is equal to one.
  • it also includes:
  • the user equipment determines, according to the detected downlink control information, a transmission mode corresponding to the extended set of the first control channel.
  • the basic set exists in all subframes including symbols for downlink transmission.
  • the extended set does not exist in a subframe carrying the synchronization signal and/or system information.
  • present embodiment is also applicable to the first control channel in the secondary control channel in the secondary control channel mode in the following.
  • the user equipment determines the time-frequency resource of the control channel, and the user equipment receives the downlink control information according to the time-frequency resource of the control channel, which may include:
  • the user equipment determines a time-frequency resource of the first control channel
  • the user equipment determines a time-frequency resource of the second control channel
  • the user equipment detects the first downlink control information according to the time-frequency resource of the first control channel
  • the user equipment detects the second downlink control information according to the time-frequency resource of the second control channel.
  • the symbol occupied by the time-frequency resource of the first control channel is located before the symbol occupied by the time-frequency resource of the second control channel.
  • the time-frequency resource of the first control channel occupies i symbols, and the corresponding symbol l 0 , . . . , l i-1 , i is a positive integer greater than or equal to 1; the time-frequency resource of the second control channel starts from Starting from the symbol l i+k , the k is a positive integer greater than 1; the symbol 1 i to the symbol l i+k-1 are used for reference signal transmission, the reference signal is used for the second control channel and / or demodulation of data; or,
  • the time-frequency resource of the first control channel occupies i symbols, and the corresponding symbol l 0 , . . . , l i-1 , i is a positive integer greater than or equal to 1; the time-frequency resource of the second control channel starts from the symbol l i , or the time-frequency resource of the second control channel is located on a symbol after the symbol l i-1 ; the second control channel is a time-frequency resource corresponding to the symbol after the symbol 1 i-1 of the downlink data.
  • the first control channel, the second control channel, and the reference signal for the second control channel and/or data demodulation are placed in front, which enables fast detection and reduces delay; further, it will be used for the second
  • the control channel and/or the data demodulation reference signal can enable fast detection of the second control channel and data before the second control channel after the first control channel; multiplexing the second control channel and data can improve multiplexing Efficiency, which increases spectral efficiency.
  • the user equipment determines a time-frequency resource of the first control channel, and the user equipment determines that the time-frequency resource of the second control channel includes:
  • the user equipment determines a time-frequency resource of the first control channel in the first subframe
  • the user equipment determines a time-frequency resource of the second control channel in the first subframe
  • the first subframe includes a symbol for downlink transmission, a guard time GP and a symbol for uplink transmission, and the uplink transmission corresponding to the symbol for uplink transmission included in the first subframe includes hybrid automatic repeat request acknowledgement HARQ-ACK transmission
  • the downlink transmission corresponding to the symbol for downlink transmission included in the first subframe includes downlink control transmission, downlink data transmission, and first reference signal transmission;
  • the symbols for downlink transmission included in the first subframe include symbols occupied by time-frequency resources of the first control channel and symbols occupied by time-frequency resources of the second control channel.
  • the time-frequency resource of the first control channel occupies i symbols in the first subframe, corresponding to the first symbol in the first subframe to the ith symbol, where i is greater than or equal to 1 a positive integer;
  • the time-frequency resource of the second control channel starts from an i+++1th symbol in the first subframe, and the k is a positive integer greater than 1;
  • the first The i+1th symbol to the i+k symbol in the subframe are used for reference signal transmission, and the reference signal is used for demodulation of the second control channel and/or data;
  • the l-k1th symbol to the lth symbol are symbols for uplink transmission in the first subframe, and the l is the number of symbols included in the first subframe, and the k1 is greater than or equal to 1 Positive integer; or,
  • the time-frequency resource of the first control channel occupies i symbols in the first subframe, corresponding to the first symbol in the first subframe to the ith symbol, where i is a positive integer greater than or equal to 1;
  • the time-frequency resource of the second control channel starts from the (i+1)th symbol in the first subframe, or the time-frequency resource of the second control channel is located in the ith of the first subframe a symbol after the symbol;
  • the second control channel and the downlink data multiplex the ith symbol in the first subframe to a time-frequency resource corresponding to the i+k2 symbol in the first subframe, a positive integer of k2 greater than 1;
  • an i+k2+1th symbol in the first subframe is a guard time GP in the first subframe;
  • the first symbol is a symbol for uplink transmission in the first subframe, and the number is a number of symbols included in the first subframe.
  • the first control channel, the second control channel, and the reference signal for the second control channel and/or data demodulation in front of the first subframe can enable fast detection and reduce delay; further, it will be used
  • the second control channel and/or the data demodulated reference signal can be enabled to quickly detect the second control channel and data before the second control channel after the first control channel of the first subframe; the second control channel and data are Multiplexing can improve the multiplexing efficiency and improve the spectrum efficiency.
  • the first subframe is designed to enable self-contained control and pilot transmission, that is, the control corresponding to the current subframe data can be fed back in the current subframe or Sending, does not depend on other subframes, so that other subframes can be occupied by future services at any time, which can better support forward compatibility.
  • the user equipment determines a time-frequency resource of the first control channel, and the user equipment determines the time-frequency resource of the second control channel, including:
  • the user equipment determines a time-frequency resource of the first control channel in the second subframe
  • the user equipment determines that there is no time-frequency resource of the second control channel in the second subframe
  • the second subframe includes a symbol for downlink transmission, a guard time GP and a symbol for uplink transmission, and a downlink transmission corresponding to the symbol for downlink transmission included in the second subframe includes downlink control transmission, and the second subframe
  • the uplink transmission corresponding to the symbol for uplink transmission includes a second reference signal transmission, an uplink data transmission, and an uplink control transmission.
  • the symbol for downlink transmission included in the second subframe is the first symbol in the second subframe, and the time-frequency resource of the first control channel occupies the first symbol in the second subframe.
  • the second subframe is mainly used for uplink data transmission, and includes a first control channel, which can enable self-contained uplink data scheduling, and can schedule uplink data transmission of the subframe by using the first downlink control channel, thereby Enable self-contained control and pilot transmission, that is, the control corresponding to the data of the current subframe can be fed back or transmitted in the current subframe, and does not depend on other subframes, so that other subframes can be occupied by future services at any time, that is, Better support for forward compatibility.
  • a first control channel which can enable self-contained uplink data scheduling, and can schedule uplink data transmission of the subframe by using the first downlink control channel, thereby Enable self-contained control and pilot transmission, that is, the control corresponding to the data of the current subframe can be fed back or transmitted in the current subframe, and does not depend on other subframes, so that other subframes can be occupied by future services at any time, that is, Better support for forward compatibility.
  • determining, by the user equipment, time-frequency resources of the second control channel includes:
  • the user equipment determines the time-frequency resource of the second control channel according to the first downlink control information.
  • the first downlink control information is carried in the subframe n, and the second control channel is carried in the subframe n; or the first downlink control information is carried in the subframe n, and the second control channel is carried in the subframe n +1; n is a positive integer; for example, k is equal to 1.
  • the channel resources can be dynamically changed, so that the control channel resources can be set according to actual requirements, and the fixed downlink resources are minimized, so that more resources can be applied.
  • the dynamic TDD can be better utilized.
  • the second control channel resource can better support forward compatibility by dynamically indicating, for example, when the subframe n+k is used for future features, the downlink user control device may indicate that the old user equipment has no second downlink control channel resources in the subframe, thereby enabling support for new features and being compatible with the old user equipment. ;
  • it also includes:
  • the user equipment receives the downlink shared channel according to the first downlink control information and the second downlink control information;
  • the first downlink control information includes time-frequency resource information of the second downlink control channel and/or time-frequency resource information of the downlink shared channel.
  • the second downlink control information includes modulation and coding information of the downlink shared channel.
  • the second control channel resource is indicated by the first control channel, and the first control information and the second control information jointly schedule the downlink shared channel, so that low-latency services can be scheduled to be transmitted in a short transmission time unit or a short transmission time interval, and the short transmission time is reduced.
  • Control channel overhead in units or short transmission time intervals, while enabling fast scheduling of low-latency services.
  • the first control channel is demodulated only according to a reference signal carried in a time-frequency resource of the first control channel.
  • the self-contained first control channel is enabled such that demodulation of the first control channel is independent of other resources, which is advantageous for supporting forward compatibility.
  • the first control channel resource of the subframe set one is determined according to a preset rule, so that the control channel resource in the subframe set one is predefined, or The device is fixed, so that the user equipment can detect the downlink control channel, thereby completing the access of the cell.
  • the embodiment of the present invention determines the time-frequency resource of the first control channel of the second set of subframes by using downlink control signaling, so that the subframe is made.
  • the first control channel resource in the set 2 can be dynamically changed, so that the control channel resources can be set according to actual requirements, and the fixed downlink resources are minimized, so that more resources can be applied to the uplink and downlink dynamic changes, and the time can be better. Take advantage of dynamic TDD.
  • the first control channel resource in the subframe set 2 is indicated by the downlink control signaling, which can better support forward compatibility, for example, when some subframes in the subframe set 2 are dynamically used for future characteristics,
  • the downlink control signaling may indicate that the old user equipment does not have the first downlink control channel resource in the subframe, thereby enabling support for the new feature and being compatible with the old user equipment.
  • the time-frequency resources of the extended set of channels are such that the fixed downlink resources are minimized as the basic set of time-frequency resources, and the dynamic TDD can be better utilized.
  • the forward compatibility can be better supported. For example, when some subframes in the subframe set 2 are dynamically used for future features, the old user equipment can be dynamically instructed to have no extension in the subframe.
  • the downlink control channel resources are aggregated to enable support for new features while also being compatible with old user equipment.
  • the transmission mode of the control channel can be better matched; for example, when the extended control channel is mainly used for common control signaling, the transmission mode of the extended set may be indicated. In a discrete manner, when the extended set signaling is mainly used for device-specific signaling, a centralized transmission mode may be indicated to better match the transmission mode of the control channel.
  • an embodiment of a method for transmitting information in an embodiment of the present invention includes:
  • the base station determines a time-frequency resource of the control channel.
  • the base station sends downlink control information according to a time-frequency resource of the control channel.
  • An embodiment of the embodiment of the present invention may be:
  • the determining, by the base station, the time-frequency resources of the control channel includes:
  • the base station sends downlink control signaling, where the downlink control signaling is used to determine the time-frequency resource of the subframe n control channel, the subframe n does not carry the synchronization signal and/or the system information, and the subframe n is an integer greater than or equal to 0.
  • the base station sends downlink control signaling, including:
  • the base station transmits downlink control signaling in the subframe n-k, where k is an integer greater than or equal to zero. For example, k is equal to 1.
  • the determining, by the base station, the time-frequency resources of the control channel includes:
  • the base station determines the time-frequency resource of the subframe n control channel according to a predefined rule; the predefined rule may be that the number of symbols occupied by the time-frequency resource of the control channel is a fixed value, or the time-frequency of the control channel The number of symbols occupied by the resource is a preset value, for example, 2 symbols.
  • the subframe n may belong to the subframe set one, and the subframe set one includes a subframe that carries the synchronization signal and/or system information.
  • the base station determines the time-frequency resource of the subframe n control channel according to a preset rule, and may occupy 2 symbols for the time-frequency resource of the subframe n control channel; or may occupy the time-frequency resource of the subframe n control channel.
  • N1 symbols, N1 bits are greater than or equal to 1 and a positive integer less than or equal to 4.
  • control channel includes a control channel set one, and the base station determines the time-frequency resource of the control channel, which may include:
  • the base station determines a time-frequency resource of the control channel set one
  • the base station sends the control channel according to the time-frequency resource of the control channel set one by using the discrete transmission mode
  • the control channel adopts a discrete transmission mode, and may refer to a control channel carrying a downlink control information DCI format transmitted in a time-frequency resource of the control channel, and the occupied time-frequency resources are discretely distributed on the time-frequency resources of the control channel.
  • a resource element group corresponding to a control channel carrying a downlink control information DCI format is discretely distributed in a time-frequency resource of the control channel.
  • control channel includes a control channel set 1 and a control channel set 2, and the base station determines the time-frequency resource of the control channel, including:
  • the base station determines a time-frequency resource of the control channel set one
  • the base station determines a time-frequency resource of the control channel set 2;
  • the control channel in the control channel set 1 adopts a discrete transmission mode
  • the control channel in the control channel set 2 adopts a centralized transmission mode
  • the control channel adopts a centralized transmission mode, and may refer to a control channel carrying a downlink control information DCI format transmitted in the time-frequency resource of the control channel, and the occupied time-frequency resources will be concentrated on the time-frequency resources of the control channel.
  • the resource element group corresponding to the control channel carrying the DCI format of the downlink control information is concentrated on a part of the time-frequency resources of the time-frequency resources of the control channel.
  • the centralized transmission of the control channel enables the beamforming transmission mode such that the control channel is concentrated corresponding to a certain beam direction and improves the coverage of the control channel.
  • the centralized transmission enables the user to jointly use the reference signal in the centralized resource as a channel. It is estimated to improve the channel estimation performance and improve the performance of the control channel based on the beam transmission mode.
  • the base station determines the time-frequency resource of the control channel, and may further include:
  • the base station determines a time-frequency resource of a basic set of control channels
  • the base station sends downlink control information based on the basic set of time-frequency resources, and the downlink control information includes time-frequency resource information of the extended set of control channels.
  • the method further includes:
  • the base station transmits system information, and the system information includes time-frequency resource information of a basic set of control channels.
  • system information includes time-frequency resource information of a basic set of control channels, including:
  • the system information includes information on the number of symbols occupied by the time-frequency resource of the basic set of control channels; or
  • the system information includes the number of physical resource block pairs occupied by time-frequency resources of the basic set of control channels; or
  • the system information includes the number of physical resource blocks occupied by the time-frequency resources of the basic set of control channels; or
  • the system information includes information on the number of resource blocks occupied by time-frequency resources of a basic set of control channels; or
  • the system information includes the number of subcarriers occupied by the time-frequency resource of the basic set of control channels; or
  • the system information includes the number of control channel unit CCEs corresponding to the time-frequency resources of the basic set of control channels;
  • the base station determines a time-frequency resource of the basic set of control channels, including:
  • the preset rule occupies 1 symbol for the time-frequency resource of the basic set of control channels.
  • the base station sends the downlink control information according to the time-frequency resource of the basic set, where the downlink control information includes the time-frequency resource information of the extended set of the control channel, including:
  • the base station sends downlink control information according to the basic set of time-frequency resources in the subframe n, and the downlink control information includes time-frequency resource information of the extended set of the subframe n+k control channels;
  • n is an integer and k is a positive integer greater than or equal to zero.
  • the value of k is equal to one.
  • it also includes:
  • the downlink control information includes information indicating that an extended set of the control channels exists;
  • the downlink control information includes information indicating a transmission mode corresponding to an extended set of control channels.
  • the basic set exists in all subframes including symbols for downlink transmission.
  • the extended set does not exist in a subframe carrying the synchronization signal and/or system information.
  • the base station determines the time-frequency resource of the control channel, and may further include:
  • the base station sends downlink control signaling, where the downlink control signaling is used to determine the time-frequency resource of the first control channel of the subframe n, the subframe n does not carry the synchronization signal and/or the system information, and n is an integer greater than or equal to 0.
  • the base station sends downlink control signaling, including:
  • the station sends downlink control signaling to the subframe n-k, where k is an integer greater than or equal to zero. For example, k is equal to 1.
  • the determining, by the base station, the time-frequency resources of the first control channel includes:
  • Subframe n carries synchronization signals and/or system information.
  • the first control channel includes a first control channel set
  • the determining, by the base station, the time-frequency resources of the first control channel includes:
  • the base station determines a time-frequency resource of the first control channel set one
  • the base station sends the first control channel according to the time-frequency resource of the first control channel set one by using the discrete transmission mode.
  • the first control channel adopts a discrete transmission mode, and may refer to a first control channel that carries a downlink control information DCI format transmitted in the time-frequency resource of the first control channel, and the occupied time-frequency resources are discretely distributed in the Control In the time-frequency resource of the channel; for example, the resource element group corresponding to the control channel carrying the downlink control information DCI format is discretely distributed in the time-frequency resource of the control channel.
  • the first control channel includes a first control channel set 1 and a first control channel set 2.
  • the base station determines that the time-frequency resources of the first control channel include:
  • the base station determines a time-frequency resource of the first control channel set one
  • the base station determines a time-frequency resource of the first control channel set 2;
  • the first control channel in the first control channel set 1 adopts a discrete transmission mode
  • the first control channel in the first control channel set 2 adopts a centralized transmission mode
  • the first control channel adopts a centralized transmission mode, and may refer to a first control channel that carries a downlink control information DCI format transmitted in a time-frequency resource of the control channel, and the occupied time-frequency resources are collectively distributed on the control channel.
  • the resource element group corresponding to the control channel carrying the downlink control information DCI format is concentrated on a part of the time-frequency resources of the time-frequency resources of the control channel.
  • the centralized transmission of the control channel enables the beamforming transmission mode such that the control channel is concentrated corresponding to a certain beam direction and improves the coverage of the control channel.
  • the centralized transmission enables the user to jointly use the reference signal in the centralized resource as a channel. It is estimated to improve the channel estimation performance and improve the performance of the first control channel based on the beam transmission mode.
  • the base station sends downlink control information in the subframe n, where the downlink control information includes time-frequency resource information of the first control channel set 1 of the subframe n+k, where n is an integer, and k is a positive integer greater than or equal to 1.
  • FIG. 10 shows a specific example.
  • the time-frequency resource of the first control channel in FIG. 10 occupies i symbols in the first subframe, corresponding to the first symbol in the first subframe to the ith symbol, where i is a positive integer greater than or equal to 1, i is equal to 2;
  • the first control channel includes a first control channel set one (using a discrete transmission mode) and a first control channel set two (using a centralized transmission mode); the third subframe of the first subframe
  • the symbol is used for reference signal transmission, and the reference signal is used for demodulation of the second control channel and/or data;
  • the time-frequency resource of the second control channel starts from the 4th symbol of the first subframe;
  • the first subframe The 13th symbol is used as the GP;
  • the 14th symbol of the first subframe is used for uplink transmission.
  • the first control channel corresponding to the UE1 indicates the second control channel resource corresponding to the UE1, the second control channel corresponding to the UE1 schedules the downlink shared channel transmission data of the UE1, and the first control channel and the second control corresponding to the UE1 and the UE2
  • the channel may use a beam-based transmission mode; the first control channel corresponding to UE1 adopts a centralized transmission mode.
  • the base station determines the time-frequency resource of the control channel, and may further include:
  • the base station determines a time-frequency resource of the first control channel.
  • the determining, by the base station, the time-frequency resources of the first control channel includes:
  • the base station determines a time-frequency resource of a basic set of the first control channel
  • the base station sends downlink control information based on the time-frequency resource of the basic set, where the downlink control information includes time-frequency resource information of the extended set of the first control channel.
  • it also includes:
  • the base station transmits system information including time-frequency resource information of a basic set of the first control channel.
  • system information includes time-frequency resource information of a basic set of the first control channel, specifically:
  • the system information includes information on the number of symbols occupied by the time-frequency resource of the basic set of the first control channel; or
  • the system information includes the number of physical resource block pairs occupied by time-frequency resources of the basic set of the first control channel; or
  • the system information includes the number of physical resource blocks occupied by the time-frequency resources of the basic set of the first control channel; or
  • the system information includes information on the number of resource blocks occupied by time-frequency resources of the basic set of the first control channel; or
  • the system information includes the number of subcarriers occupied by the time-frequency resource of the basic set of the first control channel; or
  • the system information includes the number of control channel element CCEs corresponding to the time-frequency resource of the basic set of the first control channel.
  • the base station determines a time-frequency resource of a basic set of control channels, including:
  • the base station determines a time-frequency resource of a basic set of the first control channel according to a preset rule.
  • the preset rule is that the time-frequency resource of the basic set of the first control channel occupies 1 symbol.
  • the base station sends the downlink control information according to the time-frequency resource of the basic set, where the downlink control information includes the time-frequency resource information of the extended set of the first control channel, including:
  • the base station sends downlink control information based on the basic set of time-frequency resources in the subframe n, and the downlink control information includes time-frequency resource information of the extended set of the first control channel of the subframe n+k; n is an integer, and k is a positive value greater than or equal to 0. Integer. For example, the value of k is equal to one.
  • it also includes:
  • the downlink control information includes information indicating that an extended set of the first control channel exists
  • the downlink control information includes information indicating a transmission mode corresponding to the extended set of the first control channel.
  • the basic set exists in all subframes including symbols for downlink transmission.
  • the extended set does not exist in a subframe carrying the synchronization signal and/or system information.
  • FIG. 11 shows a specific example.
  • the time-frequency resource of the first control channel in FIG. 11 occupies i symbols in the first subframe, corresponding to the first symbol in the first subframe to the ith symbol, where i is a positive integer greater than or equal to 1, i is equal to 2;
  • the first control channel includes a first control channel basic set and a first control channel extended set, and the resources of the first control channel extended set may be indicated by the first control channel of the previous subframe
  • the third symbol of the first subframe is used for reference signal transmission, and the reference signal is used for demodulation of the second control channel and/or data;
  • the time-frequency resource of the second control channel starts from the first subframe 4 symbols;
  • the 13th symbol of the first subframe is used as the GP;
  • the 14th symbol of the first subframe is used for the uplink transmission.
  • the dynamic indication extended set resource can better support forward compatibility. For example, when some subframes in the subframe set 2 are dynamically used for future features, the old user equipment can be dynamically indicated to have no extended set in the subframe. Downlink control channel resources, enabling support for new features while also being compatible with older user devices.
  • the base station determines the time-frequency resource of the control channel, and the base station sends the downlink control information according to the time-frequency resource of the control channel, which may include:
  • the base station determines a time-frequency resource of the first control channel
  • the base station determines a time-frequency resource of the second control channel
  • the base station detects the first downlink control information according to the time-frequency resource of the first control channel
  • the base station detects the second downlink control information according to the time-frequency resource of the second control channel.
  • the symbol occupied by the time-frequency resource of the first control channel is located before the symbol occupied by the time-frequency resource of the second control channel.
  • the time-frequency resource of the first control channel occupies i symbols, and the corresponding symbol l 0 , . . . , l i-1 , i is a positive integer greater than or equal to 1; the time-frequency resource of the second control channel starts from Starting from the symbol l i+k , the k is a positive integer greater than 1; the symbol 1 i to the symbol l i+k-1 are used for reference signal transmission, the reference signal is used for the second control channel and / or demodulation of data; or,
  • the time-frequency resource of the first control channel occupies i symbols, and the corresponding symbol l 0 , . . . , l i-1 , i is a positive integer greater than or equal to 1; the time-frequency resource of the second control channel starts from the symbol l i , or the time-frequency resource of the second control channel is located on a symbol after the symbol l i-1 ; the second control channel is a time-frequency resource corresponding to the symbol after the symbol 1 i-1 of the downlink data.
  • the first control channel, the second control channel, and the reference signal for the second control channel and/or data demodulation are placed in front, which enables fast detection and reduces delay; further, it will be used for the second
  • the control channel and/or the data demodulation reference signal can enable fast detection of the second control channel and data before the second control channel after the first control channel; multiplexing the second control channel and data can improve multiplexing Efficiency, which increases spectral efficiency.
  • the base station determines a time-frequency resource of the first control channel, and the base station determines that the time-frequency resource of the second control channel includes:
  • the base station determines a time-frequency resource of the first control channel in the first subframe
  • the base station determines a time-frequency resource of the second control channel in the first subframe
  • the first subframe includes a symbol for downlink transmission, a guard time GP and a symbol for uplink transmission, and the uplink transmission corresponding to the symbol for uplink transmission included in the first subframe includes hybrid automatic repeat request acknowledgement HARQ-ACK transmission
  • the downlink transmission corresponding to the symbol for downlink transmission included in the first subframe includes downlink control transmission, downlink data transmission, and first reference signal transmission;
  • the symbols for downlink transmission included in the first subframe include symbols occupied by time-frequency resources of the first control channel and symbols occupied by time-frequency resources of the second control channel.
  • the time-frequency resource of the first control channel occupies i symbols in the first subframe, corresponding to the first symbol in the first subframe to the ith symbol, where i is greater than or equal to 1 a positive integer;
  • the time-frequency resource of the second control channel starts from an i+++1th symbol in the first subframe, and the k is a positive integer greater than 1;
  • the first The i+1th symbol to the i+k symbol in the subframe are used for reference signal transmission, and the reference signal is used for demodulation of the second control channel and/or data;
  • the l-k1th symbol to the lth symbol are symbols for uplink transmission in the first subframe, and the l is the number of symbols included in the first subframe, and the k1 is greater than or equal to 1 Positive integer; or,
  • the time-frequency resource of the first control channel occupies i symbols in the first subframe, corresponding to the first symbol in the first subframe to the ith symbol, where i is a positive integer greater than or equal to 1;
  • the time-frequency resource of the second control channel starts from the (i+1)th symbol in the first subframe, or the time-frequency resource of the second control channel is located in the ith of the first subframe a symbol after the symbol;
  • the second control channel and the downlink data multiplex the ith symbol in the first subframe to a time-frequency resource corresponding to the i+k2 symbol in the first subframe, a positive integer of k2 greater than 1;
  • an i+k2+1th symbol in the first subframe is a guard time GP in the first subframe;
  • an i+k2+ in the first subframe The 2 symbols to the 1st symbol are symbols for uplink transmission in the first subframe, and the 1 is a symbol included in the first subframe number.
  • the first control channel, the second control channel, and the reference signal for the second control channel and/or data demodulation in front of the first subframe can enable fast detection and reduce delay; further, it will be used
  • the second control channel and/or the data demodulated reference signal can be enabled to quickly detect the second control channel and data before the second control channel after the first control channel of the first subframe; the second control channel and data are Multiplexing can improve the multiplexing efficiency and improve the spectrum efficiency.
  • the first subframe is designed to enable self-contained control and pilot transmission, that is, the control corresponding to the current subframe data can be fed back in the current subframe or Sending, does not depend on other subframes, so that other subframes can be occupied by future services at any time, which can better support forward compatibility.
  • the base station determines a time-frequency resource of the first control channel, and the base station determines the time-frequency resource of the second control channel, including:
  • the base station determines a time-frequency resource of the first control channel in the second subframe
  • the base station determines that there is no time-frequency resource of the second control channel in the second subframe
  • the second subframe includes a symbol for downlink transmission, a guard time GP and a symbol for uplink transmission, and a downlink transmission corresponding to the symbol for downlink transmission included in the second subframe includes downlink control transmission, and the second subframe
  • the uplink transmission corresponding to the symbol for uplink transmission includes a second reference signal transmission, an uplink data transmission, and an uplink control transmission.
  • the symbol for downlink transmission included in the second subframe is the first symbol in the second subframe, and the time-frequency resource of the first control channel occupies the first symbol in the second subframe.
  • the second subframe is mainly used for uplink data transmission, and includes a first control channel, which can enable self-contained uplink data scheduling, and can schedule uplink data transmission of the subframe by using the first downlink control channel, thereby Enable self-contained control and pilot transmission, that is, the control corresponding to the data of the current subframe can be fed back or transmitted in the current subframe, and does not depend on other subframes, so that other subframes can be occupied by future services at any time, that is, Better support for forward compatibility.
  • a first control channel which can enable self-contained uplink data scheduling, and can schedule uplink data transmission of the subframe by using the first downlink control channel, thereby Enable self-contained control and pilot transmission, that is, the control corresponding to the data of the current subframe can be fed back or transmitted in the current subframe, and does not depend on other subframes, so that other subframes can be occupied by future services at any time, that is, Better support for forward compatibility.
  • the base station detects the first downlink control information according to the time-frequency resource of the first control channel, where the first downlink control information includes time-frequency resource information of the second control channel.
  • the first downlink control information is carried in the subframe n, and the second control channel is carried in the subframe n; or the first downlink control information is carried in the subframe n, and the second control channel is carried in the subframe n+k , k is a positive integer greater than or equal to 1, for example, k is equal to 1; n is a positive integer.
  • the channel resources can be dynamically changed, so that the control channel resources can be set according to actual requirements, and the fixed downlink resources are minimized, so that more resources can be applied.
  • the dynamic TDD can be better utilized.
  • the second control channel resource can better support forward compatibility by dynamically indicating, for example, when the subframe n+k is used for future features, the downlink user control device may indicate that the old user equipment has no second downlink control channel resources in the subframe, thereby enabling support for new features and being compatible with the old user equipment. ;
  • it also includes:
  • the base station sends a downlink shared channel
  • the first downlink control information includes time-frequency resource information of the second downlink control channel and/or time-frequency resource information of the downlink shared channel.
  • the second downlink control information includes modulation and coding information of the downlink shared channel.
  • the second control channel resource is indicated by the first control channel, and the first control information and the second control information jointly schedule the downlink shared channel, so that low-latency services can be scheduled to be transmitted in a short transmission time unit or a short transmission time interval, and the short transmission time is reduced.
  • Control channel overhead in units or short transmission time intervals, while enabling fast scheduling of low-latency services.
  • the base station transmits a reference signal in a time-frequency resource of the first control channel, and the reference signal is used for demodulation of the first control channel.
  • the self-contained first control channel is enabled such that demodulation of the first control channel is independent of other resources, which is advantageous for supporting forward compatibility.
  • the first control channel resource of the subframe set one is determined according to a preset rule, so that the control channel resource in the subframe set one is predefined, or The device is fixed, so that the user equipment can detect the downlink control channel, thereby completing the access of the cell.
  • the embodiment of the present invention determines the time-frequency resource of the first control channel of the second set of subframes by using downlink control signaling, so that the subframe is made.
  • the first control channel resource in the set 2 can be dynamically changed, so that the control channel resources can be set according to actual requirements, and the fixed downlink resources are minimized, so that more resources can be applied to the uplink and downlink dynamic changes, and the time can be better. Take advantage of dynamic TDD.
  • the first control channel resource in the subframe set 2 is indicated by the downlink control signaling, which can better support forward compatibility, for example, when some subframes in the subframe set 2 are dynamically used for future characteristics,
  • the downlink control signaling may indicate that the old user equipment does not have the first downlink control channel resource in the subframe, thereby enabling support for the new feature and being compatible with the old user equipment.
  • the time-frequency resources of the extended set of channels are such that the fixed downlink resources are minimized as the basic set of time-frequency resources, and the dynamic TDD can be better utilized.
  • the forward compatibility can be better supported. For example, when some subframes in the subframe set 2 are dynamically used for future features, the old user equipment can be dynamically instructed to have no extension in the subframe.
  • the downlink control channel resources are aggregated to enable support for new features while also being compatible with old user equipment.
  • the transmission mode of the control channel can be better matched; for example, when the extended control channel is mainly used for common control signaling, the transmission mode of the extended set may be indicated. In a discrete manner, when the extended set signaling is mainly used for device-specific signaling, a centralized transmission mode may be indicated to better match the transmission mode of the control channel.
  • a schematic diagram of an embodiment of a device in an embodiment of the present invention includes:
  • a determining module 601, configured to determine a location of the reference signal
  • the transceiver module 602 is configured to send a reference signal according to the determined position of the reference signal or receive the reference signal.
  • the determining module 601, and the transceiver module 602 refer to the foregoing steps 101, 102, 201 to 204, and steps 301 to 304. No longer.
  • a schematic diagram of an embodiment of a user equipment in an embodiment of the present invention includes:
  • a determining module 701, configured to determine a time-frequency resource of the control channel
  • the receiving module 702 is configured to receive downlink control information according to a time-frequency resource of the control channel.
  • determining module 701 and the receiving module 702 For the specific description of the determining module 701 and the receiving module 702, refer to the foregoing step 401 and Step 402, and details are not described herein again.
  • a schematic diagram of an embodiment of a base station according to an embodiment of the present invention includes:
  • a determining module 801 configured to determine a time-frequency resource of the control channel
  • the sending module 802 is configured to send downlink control information according to a time-frequency resource of the control channel.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the 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 invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

本发明实施例公开了一种信息的发送方法、接收方法、用户设备及基站,能够更好地支持动态TDD且能够保持前向兼容性。本发明实施例方法包括:第一设备确定参考信号的位置;所述第一设备根据确定的所述参考信号的位置发送所述参考信号或接收所述参考信号。

Description

一种信息的发送方法、接收方法、用户设备及基站
本申请要求于2016年05月11日提交中国专利局、申请号为CN 201610309302.6、发明名称为“一种信息的发送方法、接收方法、用户设备及基站”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域,尤其涉及一种信息的发送方法、接收方法、用户设备及基站。
背景技术
第五代移动通信技术(英文全称:5-Generation,英文缩写:5G)通信系统致力于支持更高系统性能,其将支持各种不同业务、不同部署场景和不同频谱。其中,不同业务包括增强的移动宽带(英文全称:enhanced Mobile Broadband,英文缩写:eMBB),机器类型通信(英文全称:Machine Type Communication,英文缩写:MTC),超可靠低延迟通信(英文全称:Ultra-reliable and low latency communications,英文缩写:URLLC),多媒体广播多播业务(英文全称:Multimedia Broadcast Multicast Service,英文缩写:MBMS)和定位等。不同部署场景包括室内热点(Indoor hotspot)、密集城区(dense urban)、郊区、城区宏覆盖(Urban Macro)及高铁场景等。5G将支持高达100GHZ的频谱范围。动态时分双工(英文全称:Time Division Duplex,英文缩写:TDD)是5G通信系统中的一项重要技术,其通过动态调整一个子帧的传输方向,更好地与实时业务需求匹配,从而提高通信系统频谱效率和更好地满足低延迟业务的需求。5G通信系统设计需使能更好地使用动态TDD。5G通信系统需要支持前向兼容,即5G通信系统能够灵活允许未来未知特性的引入,且未来未知特性的引入不会造成仅支持现有5G通信系统设计的用户设备无法工作。5G通信系统设计需支持前向兼容性。
由于5G通信系统的研究刚刚开始,目前现有技术中未提供一种信道和信号的设计方法,使得5G通信系统能更好地支持动态TDD且能够保持前向兼容性。
发明内容
本发明实施例提供了一种信息的发送方法、接收方法、用户设备及基站,能够更好地支持动态TDD且能够保持前向兼容性。
有鉴于此,本发明第一方面提供了一种信息的发送方法和接收方法,包括:
第一设备确定参考信号的位置;
所述第一设备根据确定的所述参考信号的位置发送所述参考信号或接收所述参考信号。
此处,第一设备可以指用户设备,也可以指基站,参考信号可以包括第一参考信号和第二参考信号,第一参考信号可以称为第一解调参考信号DMRS,第二参考信号可以称为第二解调参考信号DMRS,第一参考信号可以用于上行数据解调,第二参考信号可以用于下行数据解调,第一参考信号的位置(时域位置和/或频域位置)和第二参考信号的位置(时 域位置和/或频域位置)可以相同。
此处,若第一参考信号的位置(时域位置和/或频域位置)和第二参考信号的位置(时域位置和/或频域位置)相同,则第一设备可以通过第一参考信号和第二参考信号更好地进行上下行干扰估计,从而更好地进行上行行之间的干扰消除,从而更好地利用TDD,更好地与实际业务匹配,从而提供系统的频谱效率,更好地提供低延迟业务。
在一些可能的实现方式中,所述参考信号包括第一参考信号和第二参考信号,所述第一设备确定参考信号的位置包括:所述第一设备确定第一参考信号的位置,所述第一参考信号用于下行数据解调;所述第一设备确定第二参考信号的位置,所述第二参考信号用于上行数据解调。
可选地,所述第一设备根据所述第一参考信号的位置接收所述第一参考信号,并根据所述第二参考信号的位置发送所述第二参考信号;或,所述第一设备根据所述第一参考信号的位置发送所述第二参考信号,并根据所述第二参考信号的位置接收所述第二参考信号。
其中,所述第一参考信号的时域位置与所述第二参考信号的时域位置相同。
此处,第一设备根据确定的所述第一参考信号的位置和第二参考信号的位置发送所述第一参考信号以及接收所述第二参考信号,或接收所述第一参考信号以及发送所述第二参考信号。
在另一些可能的实现方式中,所述第一参考信号的频域位置与所述第二参考信号的频域位置相同。
在另一些可能的实现方式中,所述第一参考信号承载于第一传输单元中,所述第一参考信号的位置为所述第一参考信号在所述第一传输单元中的位置,所述第二参考信号承载于第二传输单元中,所述第二参考信号的位置为所述第二参考信号在所述第二传输单元中的位置,所述第一参考信号的时域位置与所述第二参考信号的时域位置相同具体为所述第一参考信号在所述第一传输单元中的时域位置与所述第二参考信号在所述第二传输单元中的时域位置相同,所述第一传输单元对应的时间长度等于所述第二传输单元对应的时间长度。
此处,由于动态TDD机制中,一个传输单元的传输方向可以动态变化,即可动态应用于上行数据传输或下行数据传输,所以能够更好地匹配当前业务需求。
在另一些可能的实现方式中,所述第一参考信号承载于第一传输单元中,所述第一参考信号的位置为所述第一参考信号在所述第一传输单元中的位置,所述第二参考信号承载于第二传输单元中,所述第二参考信号的位置为所述第二参考信号在所述第二传输单元中的位置,所述第一参考信号的时域位置与所述第二参考信号的时域位置相同为所述第一参考信号在所述第一传输单元中的时域位置与所述第二参考信号在所述第二传输单元中的时域位置相同,所述第一参考信号的频域位置与所述第二参考信号的频域位置相同为所述第一参考信号在所述第一传输单元中的频域位置与所述第二参考信号在所述第二传输单元中的频域位置相同,所述第一传输单元对应的时间长度等于所述第二传输单元对应的时间长度。
此处,由于动态TDD机制中,一个子帧的传输方向可以动态变化,即可动态应用于上 行数据传输或下行数据传输,所以能够更好地匹配当前业务需求。
在另一些可能的实现方式中,所述第一参考信号位于所述第一传输单元中的第3个符号,所述第二参考信号位于所述第二传输单元中的第3个符号。
本发明中的符号可以指时域符号,例如可以为单载波频分多址(英文全称:Single-carrier Frequency-Division Multiple Access,英文缩写:SC-FDMA)符号,也可以为正交频分复用(英文全称:Orthogonal Frequency Division Multiplexing,英文缩写:OFDM)符号。
在另一些可能的实现方式中,所述第一参考信号承载于第一子帧中,所述第一参考信号的位置为所述第一参考信号在所述第一子帧中的位置,所述第二参考信号承载于第二子帧中,所述第二参考信号的位置为所述第二参考信号在所述第二子帧中的位置,所述第一参考信号的时域位置与所述第二参考信号的时域位置相同为所述第一参考信号在所述第一子帧中的时域位置与所述第二参考信号在所述第二子帧中的时域位置相同,所述第一子帧中用于下行传输的符号的个数大于用于上行传输的符号的个数,所述第二子帧中用于下行传输的符号的个数小于用于上行传输的符号的个数。
在另一些可能的实现方式中,所述第一参考信号承载于第一子帧中,所述第一参考信号的位置为所述第一参考信号在所述第一子帧中的位置,所述第二参考信号承载于第二子帧中,所述第二参考信号的位置为所述第二参考信号在所述第二子帧中的位置,所述第一参考信号的时域位置与所述第二参考信号的时域位置相同为所述第一参考信号在所述第一子帧中的时域位置与所述第二参考信号在所述第二子帧中的时域位置相同,所述第一参考信号的频域位置与所述第二参考信号的频域位置相同为所述第一参考信号在所述第一子帧中的频域位置与所述第二参考信号在所述第二子帧中的频域位置相同,所述第一子帧中用于下行传输的符号的个数大于用于上行传输的符号的个数,所述第二子帧中用于下行传输的符号的个数小于用于上行传输的符号的个数。
在另一些可能的实现方式中,所述第一子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第一子帧包括的用于上行传输的符号对应的上行传输包括混合自动重传请求确认HARQ-ACK传输,所述第一子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输、下行数据传输和所述第一参考信号传输;所述第二子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第二子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输,所述第二子帧中包括的用于上行传输的符号对应的上行传输包括上行控制传输、上行数据传输和所述第二参考信号传输。
在另一些可能的实现方式中,所述第一子帧起始于所述第一子帧包括的用于下行传输的符号,终止于所述第一子帧包括的用于上行传输的符号;所述第二子帧起始于所述第二子帧包括的用于下行传输的符号,终止于所述第二子帧包括的用于上行传输的符号。
在另一些可能的实现方式中,所述第一参考信号在所述第一子帧中的时域位置与所述第二参考信号在所述第二子帧中的时域位置相同具体为所述第一参考信号在所述第一子帧中占用的符号索引与所述第二参考信号在所述第二子帧中占用的符号索引相同。
在另一些可能的实现方式中,所述第一参考信号位于所述第一子帧中的第3个符号,所述第二参考信号位于所述第二子帧中的第3个符号。
在另一些可能的实现方式中,所述第一设备为用户设备,所述第一设备根据确定的所述参考信号的位置发送所述参考信号或接收所述参考信号包括:所述用户设备根据所述第一参考信号的位置接收所述第一参考信号;所述用户设备根据所述第二参考信号的位置发送所述第二参考信号。
在另一些可能的实现方式中,所述第一设备为基站,所述第一设备根据确定的所述参考信号的位置发送所述参考信号或接收所述参考信号包括:
所述基站根据所述第一参考信号的位置发送所述第一参考信号;
所述基站根据所述第二参考信号的位置接收所述第二参考信号。
本发明第二方面提供了一种信息的接收方法,包括:
用户设备确定控制信道的时频资源;
所述用户设备根据所述控制信道的时频资源接收下行控制信息。
在一些可能的实现方式中,所述用户设备确定控制信道的时频资源,所述用户设备根据所述控制信道的时频资源接收下行控制信息包括:所述用户设备确定第一控制信道的时频资源;所述用户设备确定第二控制信道的时频资源;所述用户设备根据所述第一控制信道的时频资源检测第一下行控制信息;所述用户设备根据所述第二控制信道的时频资源检测第二下行控制信息。
在另一些可能的实现方式中,所述第一控制信道的时频资源占用的符号位于所述第二控制信道的时频资源占用的符号之前。
在另一些可能的实现方式中,所述第一控制信道的时频资源占用i个符号,对应符号l0,…,li-1,i为大于等于1的正整数;所述第二控制信道的时频资源起始于符号li+k,所述k为大于等以1的正整数;符号li到符号li+k-1用于参考信号传输,所述参考信号用于所述第二控制信道和/或数据的解调。
在另一些可能的实现方式中,所述第一控制信道的时频资源占用i个符号,且对应符号l0,…,li-1,i为大于等于1的正整数;所述第二控制信道的时频资源起始于符号li,或所述第二控制信道的时频资源位于符号li-1后的符号上;所述第二控制信道与下行数据复用符号li-1之后的符号对应的时频资源。
在另一些可能的实现方式中,所述用户设备确定第一控制信道的时频资源,所述用户设备确定第二控制信道的时频资源包括:所述用户设备确定第一子帧中第一控制信道的时频资源;所述用户设备确定第一子帧中第二控制信道的时频资源;所述第一子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第一子帧包括的用于上行传输的符号对应的上行传输包括混合自动重传请求确认HARQ-ACK传输,所述第一子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输、下行数据传输和第一参考信号传输;所述第一子帧中包括的用于下行传输的符号包括所述第一控制信道的时频资源占用的符号和所述第二控制信道的时频资源占用的符号。
在另一些可能的实现方式中,所述第一控制信道的时频资源占用所述第一子帧中的i个符号,对应所述第一子帧中的第一个符号到第i个符号,i为大于等于1的正整数;所述第二控制信道的时频资源起始于所述第一子帧中的第i+k+1个符号,所述k为大于等以 1的正整数;所述第一子帧中的第i+1个符号到第i+k符号用于参考信号传输,所述参考信号用于所述第二控制信道和/或数据的解调;所述第一子帧中的第l-k1个符号到第l个符号为所述第一子帧中用于上行传输的符号,所述l为所述第一子帧包括的符号的个数,所述k1为大于等于1的正整数。
在另一些可能的实现方式中,所述第一控制信道的时频资源占用所述第一子帧中的i个符号,对应所述第一子帧中的第一个符号到第i个符号,i为大于等于1的正整数;所述第二控制信道的时频资源起始于所述第一子帧中的第i+1个符号,或所述第二控制信道的时频资源位于所述第一子帧中的第i个符号后的符号上;所述第二控制信道与下行数据复用所述第一子帧中的第i符号到所述第一子帧中的第i+k2符号对应的时频资源,所述为k2大于1的正整数;所述第一子帧中的第i+k2+1个符号为所述第一子帧中的保护时间GP;所述第一子帧中的第i+k2+2个符号到第l个符号为所述第一子帧中用于上行传输的符号,所述l为所述第一子帧包括的符号的个数。
在另一些可能的实现方式中,所述用户设备确定第一控制信道的时频资源,所述用户设备确定第二控制信道的时频资源,包括:
所述用户设备确定第二子帧中第一控制信道的时频资源;
所述用户设备确定第二子帧中无第二控制信道的时频资源;
所述第二子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第二子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输,所述第二子帧中包括的用于上行传输的符号对应的上行传输包括所述第二参考信号传输、上行数据传输和上行控制传输。
在另一些可能的实现方式中,所述第二子帧中包括的用于下行传输的符号为所述第二子帧中的第一个符号,所述第一控制信道的时频资源占用所述第二子帧中的第一个符号。
在另一些可能的实现方式中,所述用户设备确定第二控制信道的时频资源包括:所述用户设备根据所述第一下行控制信息确定所述第二控制信道的时频资源。
在另一些可能的实现方式中,所述第一下行控制信息承载于子帧n,所述第二控制信道承载于子帧n;或,所述第一下行控制信息承载于子帧n,所述第二控制信道承载于子帧n+1;所述n为正整数。
在另一些可能的实现方式中,所述方法还包括:所述用户设备根据所述第一下行控制信息和所述第二下行控制信息接收下行共享信道;其中所述第一下行控制信息包括所述第二下行控制信道的时频资源信息和/或所述下行共享信道的时频资源信息;所述第二下行控制信息包括所述下行共享信道的调制编码信息。
在另一些可能的实现方式中,所述第一控制信道根据所述第一控制信道的时频资源内承载的参考信号进行解调。
在另一些可能的实现方式中,所述用户设备确定控制信道的时频资源,包括:所述用户设备确定子帧n控制信道的时频资源;若所述子帧n属于子帧集合一,则所述用户设备按照预设的规则确定所述子帧n控制信道的时频资源;若所述子帧n属于子帧集合二,则所述用户设备根据下行控制信令确定所述子帧n控制信道的时频资源;所述子帧集合一包括 承载同步信号和/或系统信息的子帧,所述子帧集合二不包括承载同步信号和/或系统信息的子帧;所述n为大于等于0的整数。
在另一些可能的实现方式中,所述用户设备根据下行控制信令确定所述子帧n控制信道的时频资源,包括:所述用户设备根据承载于子帧n-k的下行控制信令确定所述子帧n控制信道的时频资源,所述k为大于等于0的整数。
例如,k的值等于1,此时所述用户设备根据承载于子帧n-1的下行控制信令确定所述子帧n控制信道的时频资源。需要说明的是,子帧n-k可以表示为从子帧n的前面第k个子帧,子帧n-k和子帧n可以在同一个无线帧,也可以不在同一个无线帧。当不在同一个无线帧时,子帧n-k和子帧n在相邻两个无线帧。此处,下行控制信令可以为下行控制信息,或承载于下行控制信息格式中的信息。
在另一些可能的实现方式中,所述用户设备根据下行控制信令确定所述子帧n控制信道的时频资源,包括:所述用户设备根据承载于子帧n-1的下行控制信令确定所述子帧n控制信道的时频资源。
在另一些可能的实现方式中,所述子帧n控制信道的时频资源时域占用2个符号。
在另一些可能的实现方式中,所述控制信道包括控制信道集合一,所述用户设备确定控制信道的时频资源,包括:所述用户设备确定控制信道集合一的时频资源;所述控制信道集合一中的控制信道采用离散传输方式。
此处,控制信道采用离散传输方式,可以指在该控制信道的时频资源中传输的承载一个下行控制信息DCI格式的控制信道,占用的时频资源将离散分布于该控制信道的时频资源中;例如,具体地,承载一个下行控制信息DCI格式的控制信道对应的资源元素组(resource element group)离散分布于控制信道的时频资源中。采用离散方式传输控制信道,能获得更多的分集增益,从而提高控制信道的性能。
在另一些可能的实现方式中,所述控制信道包括控制信道集合一和控制信道集合二,所述用户设备确定控制信道的时频资源,包括:所述用户设备确定控制信道集合一的时频资源;所述用户设备确定控制信道集合二的时频资源;所述控制信道集合一中的控制信道采用离散传输方式,所述控制信道集合二中的控制信道采用集中传输方式。
此处,控制信道采用集中传输方式,可以指在该控制信道的时频资源中传输的承载一个下行控制信息DCI格式的控制信道,占用的时频资源将集中分布于该控制信道的时频资源中;例如,具体地,承载一个下行控制信息DCI格式的控制信道对应的资源元素组(resource element group)集中分布于控制信道的时频资源中一部分时频资源上。采用集中方式传输控制信道,能够使得波束成型传输方式,使得该控制信道集中对应某个波束方向,提高控制信道的覆盖;同时,集中式传输,使得用户能够联合集中的资源中的参考信号做信道估计,从而提高信道估计性能,提高基于波束传输方式的控制信道的性能。
在另一些可能的实现方式中,所述用户设备确定控制信道集合一的时频资源,包括:所述用户设备在子帧n检测下行控制信息;所述用户设备根据所述子帧n检测到的下行控制信息,确定子帧n+k控制信道集合一的时频资源,所述n为整数,所述k为大于等于1的正整数。在另一些可能的实现方式中,所述方法还包括:所述用户设备根据所述子帧n +k控制信道集合一的时频资源确定所述子帧n+k控制信道集合二的时频资源。
在另一些可能的实现方式中,承载所述控制信道的子帧不承载同步信号和/或系统信息。
在另一些可能的实现方式中,所述用户设备确定控制信道的时频资源,包括:所述用户设备确定所述控制信道的基本集合的时频资源;所述用户设备基于所述基本集合的时频资源检测下行控制信息;所述用户设备根据所述检测到的下行控制信息确定所述控制信道的扩展集合的时频资源。
在另一些可能的实现方式中,所述用户设备确定所述控制信道的基本集合的时频资源,包括:所述用户设备接收系统信息;所述用户设备根据所述系统信息确定所述控制信道的基本集合的时频资源;
在另一些可能的实现方式中,所述用户设备根据所述系统信息确定所述控制信道的基本集合的时频资源包括:所述用户设备根据所述系统信息确定所述控制信道的基本集合的时频资源占用的符号个数;或,所述用户设备根据所述系统信息确定所述控制信道的基本集合的时频资源占用的物理资源块的个数;或,所述用户设备根据所述系统信息确定所述控制信道的基本集合的时频资源对应的控制信道单元CCE个数。
在另一些可能的实现方式中,所述用户设备确定所述控制信道的基本集合的时频资源,包括:所述用户设备按照预设的规则确定所述控制信道的基本集合的时频资源。
在另一些可能的实现方式中,所述预设的规则为所述控制信道的基本集合的时频资源占用1个符号。
在另一些可能的实现方式中,所述用户设备确定所述控制信道的基本集合的时频资源,包括:所述用户设备接收系统信息;所述用户设备根据所述系统信息确定所述控制信道的基本集合的时频资源占用的物理资源块的个数或所述控制信道的基本集合的时频资源对应的控制信道单元的个数;所述用户设备根据预定义的规则确定所述控制信道的时频资源占用的符号个数,所述预定义的规则可以为所述控制信道的时频资源占用的符号个数为固定值,或所述控制信道的时频资源占用的符号个数为预设的值,例如为2个符号。
在另一些可能的实现方式中,所述用户设备基于所述基本集合的时频资源检测下行控制信息;所述用户设备根据所述检测到的下行控制信息确定所述控制信道的扩展集合的时频资源包括:所述用户设备在子帧n基于所述基本集合的时频资源检测下行控制信息;所述用户设备根据所述子帧n检测到的下行控制信息,确定子帧n+k所述控制信道的扩展集合的时频资源,所述n为整数,所述k为大于等于0的正整数。可选地,所述k的值等于1。
在另一些可能的实现方式中,所述方法还包括:所述用户设备根据所述检测到的下行控制信息确定是否存在所述控制信道的扩展集合;或,所述用户设备根据所述检测到的下行控制信息确定所述控制信道的扩展集合对应的传输方式。
在另一些可能的实现方式中,所述基本集合存在于所有包括用于下行传输符号的子帧中。
在另一些可能的实现方式中,所述扩展集合不存在于承载同步信号和/或系统信息的子 帧中。
本发明第三方面提供了一种信息的发送方法,包括:
基站确定控制信道的时频资源;
所述基站根据所述控制信道的时频资源发送下行控制信息。
在一些可能的实现方式中,所述基站确定控制信道的时频资源,所述基站根据所述控制信道的时频资源发送下行控制信息包括:基站确定第一控制信道的时频资源;所述基站确定第二控制信道的时频资源;所述基站根据所述第一控制信道的时频资源发送第一下行控制信息;所述基站根据所述第二控制信道的时频资源发送第二下行控制信息。
在另一些可能的实现方式中,所述第一控制信道的时频资源占用的符号位于所述第二控制信道的时频资源占用的符号之前。
在另一些可能的实现方式中,所述第一控制信道的时频资源占用i个符号,对应符号l0,…,li-1,i为大于等于1的正整数;所述第二控制信道的时频资源起始于符号li+k,所述k为大于等以1的正整数;符号li到符号li+k-1用于参考信号传输,所述参考信号用于所述第二控制信道和/或数据的解调。
在另一些可能的实现方式中,所述第一控制信道的时频资源占用i个符号,且对应符号l0,…,li-1,i为大于等于1的正整数;所述第二控制信道的时频资源起始于符号li,或所述第二控制信道的时频资源位于符号li-1后的符号上;所述第二控制信道与下行数据复用符号li-1之后的符号对应的时频资源。
在另一些可能的实现方式中,所述基站确定第一控制信道的时频资源,所述基站确定第二控制信道的时频资源,包括:所述基站确定第一子帧中第一控制信道的时频资源;所述基站确定第一子帧中第二控制信道的时频资源;所述第一子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第一子帧包括的用于上行传输的符号对应的上行传输包括混合自动重传请求确认HARQ-ACK传输,所述第一子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输、下行数据传输和第一参考信号传输;所述第一子帧中包括的用于下行传输的符号包括所述第一控制信道的时频资源占用的符号和所述第二控制信道的时频资源占用的符号。
在另一些可能的实现方式中,所述第一控制信道的时频资源占用所述第一子帧中的i个符号,对应所述第一子帧中的第一个符号到第i个符号,i为大于等于1的正整数;所述第二控制信道的时频资源起始于所述第一子帧中的第i+k+1个符号,所述k为大于等以1的正整数;所述第一子帧中的第i+1个符号到第i+k符号用于参考信号传输,所述参考信号用于所述第二控制信道和/或数据的解调;所述第一子帧中的第l-k1个符号到第l个符号为所述第一子帧中用于上行传输的符号,所述l为所述第一子帧包括的符号的个数,所述k1为大于等于1的正整数。
在另一些可能的实现方式中,所述第一控制信道的时频资源占用所述第一子帧中的i个符号,对应所述第一子帧中的第一个符号到第i个符号,i为大于等于1的正整数;所述第二控制信道的时频资源起始于所述第一子帧中的第i+1个符号,或所述第二控制信道的时频资源位于所述第一子帧中的第i个符号后的符号上;所述第二控制信道与下行数据复用 所述第一子帧中的第i符号到所述第一子帧中的第i+k2符号对应的时频资源,所述k2为大于1的正整数;所述第一子帧中的第i+k2+1个符号为所述第一子帧中的保护时间GP;所述第一子帧中的第i+k2+2个符号到第l个符号为所述第一子帧中用于上行传输的符号,所述l为所述第一子帧包括的符号的个数。
在另一些可能的实现方式中,所述基站确定第一控制信道的时频资源,所述基站确定第二控制信道的时频资源,包括:所述基站确定第二子帧中第一控制信道的时频资源;所述基站确定第二子帧中无第二控制信道的时频资源;所述第二子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第二子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输,所述第二子帧中包括的用于上行传输的符号对应的上行传输包括所述第二参考信号传输、上行数据传输和上行控制传输。
在另一些可能的实现方式中,所述第二子帧中包括的用于下行传输的符号为所述第二子帧中的第一个符号,所述第一控制信道的时频资源占用所述第二子帧中的第一个符号。
在另一些可能的实现方式中,所述第一下行控制信息包括所述第二控制信道的时频资源信息。
在另一些可能的实现方式中,所述第一下行控制信息承载于子帧n,所述第二控制信道承载于子帧n;或,所述第一下行控制信息承载于子帧n,所述第二控制信道承载于子帧n+1;所述n为正整数。
在另一些可能的实现方式中,所述方法还包括:所述基站发送下行共享信道;其中所述第一下行控制信息包括所述第二下行控制信道的时频资源信息和/或所述下行共享信道的时频资源信息;所述第二下行控制信息包括所述下行共享信道的调制编码信息。
在另一些可能的实现方式中,所述方法还包括:所述基站在所述第一控制信道的时频资源内发送参考信号,所述参考信号用于所述第一控制信道解调。
在另一些可能的实现方式中,所述方法还包括:所述基站发送下行控制信令,所述下行控制信令用于确定子帧n控制信道的时频资源,所述子帧n不承载同步信号和/或系统信息,所述n为大于等于0的整数。
在另一些可能的实现方式中,所述基站发送下行控制信令,包括:所述基站在子帧n-k发送所述下行控制信令,所述k为大于等于0的整数。可选地,所述k等于1。
在另一些可能的实现方式中,所述基站确定控制信道的时频资源,包括:所述基站按照预定义的规则确定子帧n所述控制信道的时频资源;所述子帧n承载同步信号和/或系统信息。所述预定义的规则可以为所述控制信道的时频资源占用的符号个数为固定值,或所述控制信道的时频资源占用的符号个数为预设的值,例如为2个符号。
在另一些可能的实现方式中,所述控制信道包括控制信道集合一,所述基站确定控制信道的时频资源,包括:所述基站确定控制信道集合一的时频资源;所述方法还包括:所述基站采用离散传输方式基于所述控制信道集合一的时频资源发送控制信道。
在另一些可能的实现方式中,所述控制信道包括控制信道集合一和控制信道集合二,所述基站确定控制信道的时频资源,包括:所述基站确定控制信道集合一的时频资源;所述基站确定控制信道集合二的时频资源;所述控制信道集合一中的控制信道采用离散传输 方式,所述控制信道集合二中的控制信道采用集中传输方式。
在另一些可能的实现方式中,所述方法还包括:所述基站在子帧n发送下行控制信息,所述下行控制信息包括子帧n+k控制信道集合一的时频资源信息,所述n为整数,所述k为大于等于1的正整数。
在另一些可能的实现方式中,所述基站确定控制信道的时频资源,所述基站根据所述控制信道的时频资源发送下行控制信息包括:所述基站确定所述控制信道的基本集合的时频资源;所述基站基于所述基本集合的时频资源发送下行控制信息,所述下行控制信息包括所述控制信道的扩展集合的时频资源信息。
在另一些可能的实现方式中,所述方法还包括:所述基站发送系统信息,所述系统信息包括所述控制信道的基本集合的时频资源信息。
在另一些可能的实现方式中,所述系统信息包括所述控制信道的基本集合的时频资源信息具体为:所述系统信息包括所述控制信道的基本集合的时频资源占用的符号个数信息;或,所述系统信息包括所述控制信道的基本集合的时频资源占用的物理资源块的个数;或,所述系统信息包括所述控制信道的基本集合的时频资源占用的物理资源块的个数信息;或,所述系统信息包括所述控制信道的基本集合的时频资源占用的资源块对的个数信息;或,所述系统信息包括所述控制信道的基本集合的时频资源占用的子载波个数信息;或,所述系统信息包括所述控制信道的基本集合的时频资源对应的控制信道单元CCE个数信息。
在另一些可能的实现方式中,所述基站确定所述控制信道的基本集合的时频资源,包括:所述基站按照预设的规则确定所述控制信道的基本集合的时频资源。
在另一些可能的实现方式中,所述预设的规则为所述控制信道的基本集合的时频资源占用1个符号。
在另一些可能的实现方式中,所述基站基于所述基本集合的时频资源发送下行控制信息,所述下行控制信息包括所述控制信道的扩展集合的时频资源信息,包括:所述基站在子帧n基于所述基本集合的时频资源发送下行控制信息,所述下行控制信息包括子帧n+k所述控制信道的扩展集合的时频资源信息;所述n为整数,所述k为大于等于0的正整数。可选地,所述k的值等于1。
在另一些可能的实现方式中,所述下行控制信息包括指示是否存在所述控制信道的扩展集合的信息;或,所述下行控制信息包括指示所述控制信道的扩展集合对应的传输方式的信息。
在另一些可能的实现方式中,所述基本集合存在于所有包括用于下行传输符号的子帧中。
在另一些可能的实现方式中,所述扩展集合不存在于承载同步信号和/或系统信息的子帧中。
本发明第四方面提供了一种设备,作为第一设备使用,包括:
确定模块,用于确定参考信号的位置;
收发模块,用于根据确定的所述参考信号的位置发送所述参考信号或接收所述参考信号。
在一些可能的实现方式中,所述参考信号包括第一参考信号和第二参考信号,所述确定模块,具体用于确定第一参考信号的位置,所述第一参考信号用于下行数据解调;确定第二参考信号的位置,所述第二参考信号用于上行数据解调;其中,所述第一参考信号的时域位置与所述第二参考信号的时域位置相同。
可选地,所述收发模块,具体用于根据所述第一参考信号的位置接收所述第一参考信号,并根据所述第二参考信号的位置发送所述第二参考信号;或,所述第一设备根据所述第一参考信号的位置发送所述第二参考信号,并根据所述第二参考信号的位置接收所述第二参考信号。
在另一些可能的实现方式中,所述第一参考信号的频域位置与所述第二参考信号的频域位置相同。
在另一些可能的实现方式中,所述第一参考信号承载于第一传输单元中,所述第一参考信号的位置为所述第一参考信号在所述第一传输单元中的位置,所述第二参考信号承载于第二传输单元中,所述第二参考信号的位置为所述第二参考信号在所述第二传输单元中的位置,所述第一参考信号的时域位置与所述第二参考信号的时域位置相同具体为所述第一参考信号在所述第一传输单元中的时域位置与所述第二参考信号在所述第二传输单元中的时域位置相同,所述第一传输单元对应的时间长度等于所述第二传输单元对应的时间长度。
在另一些可能的实现方式中,所述第一参考信号承载于第一传输单元中,所述第一参考信号的位置为所述第一参考信号在所述第一传输单元中的位置,所述第二参考信号承载于第二传输单元中,所述第二参考信号的位置为所述第二参考信号在所述第二传输单元中的位置,所述第一参考信号的时域位置与所述第二参考信号的时域位置相同为所述第一参考信号在所述第一传输单元中的时域位置与所述第二参考信号在所述第二传输单元中的时域位置相同,所述第一参考信号的频域位置与所述第二参考信号的频域位置相同为所述第一参考信号在所述第一传输单元中的频域位置与所述第二参考信号在所述第二传输单元中的频域位置相同,所述第一传输单元对应的时间长度等于所述第二传输单元对应的时间长度。
在另一些可能的实现方式中,所述第一参考信号位于所述第一传输单元中的第3个符号,所述第二参考信号位于所述第二传输单元中的第3个符号。
在另一些可能的实现方式中,所述第一参考信号承载于第一子帧中,所述第一参考信号的位置为所述第一参考信号在所述第一子帧中的位置,所述第二参考信号承载于第二子帧中,所述第二参考信号的位置为所述第二参考信号在所述第二子帧中的位置,所述第一参考信号的时域位置与所述第二参考信号的时域位置相同为所述第一参考信号在所述第一子帧中的时域位置与所述第二参考信号在所述第二子帧中的时域位置相同,所述第一子帧中用于下行传输的符号的个数大于用于上行传输的符号的个数,所述第二子帧中用于下行传输的符号的个数小于用于上行传输的符号的个数。
在另一些可能的实现方式中,所述第一参考信号承载于第一子帧中,所述第一参考信号的位置为所述第一参考信号在所述第一子帧中的位置,所述第二参考信号承载于第二子 帧中,所述第二参考信号的位置为所述第二参考信号在所述第二子帧中的位置,所述第一参考信号的时域位置与所述第二参考信号的时域位置相同为所述第一参考信号在所述第一子帧中的时域位置与所述第二参考信号在所述第二子帧中的时域位置相同,所述第一参考信号的频域位置与所述第二参考信号的频域位置相同为所述第一参考信号在所述第一子帧中的频域位置与所述第二参考信号在所述第二子帧中的频域位置相同,所述第一子帧中用于下行传输的符号的个数大于用于上行传输的符号的个数,所述第二子帧中用于下行传输的符号的个数小于用于上行传输的符号的个数。
在另一些可能的实现方式中,所述第一子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第一子帧包括的用于上行传输的符号对应的上行传输包括混合自动重传请求确认HARQ-ACK传输,所述第一子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输、下行数据传输和所述第一参考信号传输;所述第二子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第二子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输,所述第二子帧中包括的用于上行传输的符号对应的上行传输包括上行控制传输、上行数据传输和所述第二参考信号传输。
在另一些可能的实现方式中,所述第一子帧起始于所述第一子帧包括的用于下行传输的符号,终止于所述第一子帧包括的用于上行传输的符号;所述第二子帧起始于所述第二子帧包括的用于下行传输的符号,终止于所述第二子帧包括的用于上行传输的符号。
在另一些可能的实现方式中,所述第一参考信号在所述第一子帧中的时域位置与所述第二参考信号在所述第二子帧中的时域位置相同具体为所述第一参考信号在所述第一子帧中占用的符号索引与所述第二参考信号在所述第二子帧中占用的符号索引相同。
在另一些可能的实现方式中,所述第一参考信号位于所述第一子帧中的第3个符号,所述第二参考信号位于所述第二子帧中的第3个符号。
在另一些可能的实现方式中,所述第一设备为用户设备,所述收发模块,具体用于根据所述第一参考信号的位置接收所述第一参考信号;根据所述第二参考信号的位置发送所述第二参考信号。
在另一些可能的实现方式中,所述第一设备为基站,所述收发模块,具体用于根据所述第一参考信号的位置发送所述第一参考信号;根据所述第二参考信号的位置接收所述第二参考信号。
本发明第五方面提供了一种用户设备,包括:
确定模块,用于确定控制信道的时频资源;
接收模块,用于根据所述控制信道的时频资源接收下行控制信息。
在一些可能的实现方式中,所述确定模块,具体用于确定第一控制信道的时频资源;确定第二控制信道的时频资源;所述接收模块,具体用于根据所述第一控制信道的时频资源检测第一下行控制信息;根据所述第二控制信道的时频资源检测第二下行控制信息。
在另一些可能的实现方式中,所述第一控制信道的时频资源占用的符号位于所述第二控制信道的时频资源占用的符号之前。
在另一些可能的实现方式中,所述第一控制信道的时频资源占用i个符号,对应符号 l0,…,li-1,i为大于等于1的正整数;所述第二控制信道的时频资源起始于符号li+k,所述k为大于等以1的正整数;符号li到符号li+k-1用于参考信号传输,所述参考信号用于所述第二控制信道和/或数据的解调。
在另一些可能的实现方式中,所述第一控制信道的时频资源占用i个符号,且对应符号l0,…,li-1,i为大于等于1的正整数;所述第二控制信道的时频资源起始于符号li,或所述第二控制信道的时频资源位于符号li-1后的符号上;所述第二控制信道与下行数据复用符号li-1之后的符号对应的时频资源。
在另一些可能的实现方式中,所述确定模块,具体用于确定第一子帧中第一控制信道的时频资源;确定第一子帧中第二控制信道的时频资源;所述第一子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第一子帧包括的用于上行传输的符号对应的上行传输包括混合自动重传请求确认HARQ-ACK传输,所述第一子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输、下行数据传输和第一参考信号传输;所述第一子帧中包括的用于下行传输的符号包括所述第一控制信道的时频资源占用的符号和所述第二控制信道的时频资源占用的符号。
在另一些可能的实现方式中,所述第一控制信道的时频资源占用所述第一子帧中的i个符号,对应所述第一子帧中的第一个符号到第i个符号,i为大于等于1的正整数;所述第二控制信道的时频资源起始于所述第一子帧中的第i+k+1个符号,所述k为大于等以1的正整数;所述第一子帧中的第i+1个符号到第i+k符号用于参考信号传输,所述参考信号用于所述第二控制信道和/或数据的解调;所述第一子帧中的第l-k1个符号到第l个符号为所述第一子帧中用于上行传输的符号,所述l为所述第一子帧包括的符号的个数,所述k1为大于等于1的正整数。
在另一些可能的实现方式中,所述第一控制信道的时频资源占用所述第一子帧中的i个符号,对应所述第一子帧中的第一个符号到第i个符号,i为大于等于1的正整数;所述第二控制信道的时频资源起始于所述第一子帧中的第i+1个符号,或所述第二控制信道的时频资源位于所述第一子帧中的第i个符号后的符号上;所述第二控制信道与下行数据复用所述第一子帧中的第i符号到所述第一子帧中的第i+k2符号对应的时频资源,所述为k2大于1的正整数;所述第一子帧中的第i+k2+1个符号为所述第一子帧中的保护时间GP;所述第一子帧中的第i+k2+2个符号到第l个符号为所述第一子帧中用于上行传输的符号,所述l为所述第一子帧包括的符号的个数。
在另一些可能的实现方式中,所述确定模块,具体用于确定第二子帧中第一控制信道的时频资源;确定第二子帧中无第二控制信道的时频资源;所述第二子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第二子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输,所述第二子帧中包括的用于上行传输的符号对应的上行传输包括所述第二参考信号传输、上行数据传输和上行控制传输。
在另一些可能的实现方式中,所述第二子帧中包括的用于下行传输的符号为所述第二子帧中的第一个符号,所述第一控制信道的时频资源占用所述第二子帧中的第一个符号。
在另一些可能的实现方式中,所述确定模块,还用于根据所述第一下行控制信息确定 所述第二控制信道的时频资源。
在另一些可能的实现方式中,所述第一下行控制信息承载于子帧n,所述第二控制信道承载于子帧n;或,所述第一下行控制信息承载于子帧n,所述第二控制信道承载于子帧n+1;所述n为正整数。
在另一些可能的实现方式中,所述接收模块,还用于根据所述第一下行控制信息和所述第二下行控制信息接收下行共享信道;其中所述第一下行控制信息包括所述第二下行控制信道的时频资源信息和/或所述下行共享信道的时频资源信息;所述第二下行控制信息包括所述下行共享信道的调制编码信息。
在另一些可能的实现方式中,所述第一控制信道根据所述第一控制信道的时频资源内承载的参考信号进行解调。
在另一些可能的实现方式中,所述确定模块,具体用于确定子帧n控制信道的时频资源;若所述子帧n属于子帧集合一,则所述确定模块按照预设的规则确定所述子帧n控制信道的时频资源;若所述子帧n属于子帧集合二,则所述确定模块根据下行控制信令确定所述子帧n控制信道的时频资源;所述子帧集合一包括承载同步信号和/或系统信息的子帧,所述子帧集合二不包括承载同步信号和/或系统信息的子帧;所述n为大于等于0的整数。
在另一些可能的实现方式中,所述确定模块,具体用于根据承载于子帧n-k的下行控制信令确定所述子帧n控制信道的时频资源,所述k为大于等于0的整数。
在另一些可能的实现方式中,所述确定模块,具体用于根据承载于子帧n-1的下行控制信令确定所述子帧n控制信道的时频资源。
在另一些可能的实现方式中,所述子帧n控制信道的时频资源时域占用2个符号。
在另一些可能的实现方式中,所述控制信道包括控制信道集合一,所述确定模块,具体用于确定控制信道集合一的时频资源;所述控制信道集合一中的控制信道采用离散传输方式。
在另一些可能的实现方式中,所述控制信道包括控制信道集合一和控制信道集合二,所述确定模块,具体用于确定控制信道集合一的时频资源;确定控制信道集合二的时频资源;所述控制信道集合一中的控制信道采用离散传输方式,所述控制信道集合二中的控制信道采用集中传输方式。
在另一些可能的实现方式中,所述确定模块,还用于在子帧n检测下行控制信息;根据所述子帧n检测到的下行控制信息,确定子帧n+k控制信道集合一的时频资源,所述n为整数,所述k为大于等于1的正整数。
在另一些可能的实现方式中,所述确定模块,还用于根据所述子帧n+k控制信道集合一的时频资源确定所述子帧n+k控制信道集合二的时频资源。
在另一些可能的实现方式中,承载所述控制信道的子帧不承载同步信号和/或系统信息。
在另一些可能的实现方式中,所述确定模块,具体用于确定所述控制信道的基本集合的时频资源;基于所述基本集合的时频资源检测下行控制信息;根据所述检测到的下行控制信息确定所述控制信道的扩展集合的时频资源。
在另一些可能的实现方式中,所述接收模块,还用于接收系统信息;所述确定模块,还用于根据所述系统信息确定所述控制信道的基本集合的时频资源。
在另一些可能的实现方式中,所述确定模块,还用于根据所述系统信息确定所述控制信道的基本集合的时频资源占用的符号个数;或,根据所述系统信息确定所述控制信道的基本集合的时频资源占用的物理资源块的个数;或,根据所述系统信息确定所述控制信道的基本集合的时频资源占用的物理资源块的个数信息;或,根据所述系统信息确定所述控制信道的基本集合的时频资源占用的资源块对的个数信息;或,根据所述系统信息确定所述控制信道的基本集合的时频资源占用的子载波个数信息;或,根据所述系统信息确定所述控制信道的基本集合的时频资源对应的控制信道单元CCE个数。
在另一些可能的实现方式中,所述确定模块,具体用于按照预设的规则确定所述控制信道的基本集合的时频资源。
在另一些可能的实现方式中,所述预设的规则为所述控制信道的基本集合的时频资源占用1个符号。
在另一些可能的实现方式中,所述接收模块,还用于接收系统信息;所述确定模块,具体用于根据所述系统信息确定所述控制信道的基本集合的时频资源占用的物理资源块的个数或所述控制信道的基本集合的时频资源对应的控制信道单元的个数或所述控制信道的基本集合的时频资源占用的物理资源块的个数或所述控制信道的基本集合的时频资源占用的资源块的个数或所述控制信道的基本集合的时频资源占用的子载波个数;所述用户设备根据预定义的规则确定所述控制信道的时频资源占用的符号个数,所述预定义的规则可以为所述控制信道的时频资源占用的符号个数为固定值,或所述控制信道的时频资源占用的符号个数为预设的值,例如为2个符号。
在另一些可能的实现方式中,所述用户设备还包括:检测模块,用于在子帧n基于所述基本集合的时频资源检测下行控制信息;所述确定模块,具体用于根据所述子帧n检测到的下行控制信息,确定子帧n+k所述控制信道的扩展集合的时频资源,所述n为整数,所述k为大于等于0的正整数。可选地,所述k的值等于1。
在另一些可能的实现方式中,所述确定模块,还用于根据所述检测到的下行控制信息确定是否存在所述控制信道的扩展集合;或,根据所述检测到的下行控制信息确定所述控制信道的扩展集合对应的传输方式。
在另一些可能的实现方式中,所述基本集合存在于所有包括用于下行传输符号的子帧中。
在另一些可能的实现方式中,所述扩展集合不存在于承载同步信号和/或系统信息的子帧中。
本发明第六方面提供了一种基站,包括:
确定模块,用于确定控制信道的时频资源;
发送模块,用于根据所述控制信道的时频资源发送下行控制信息。
在一些可能的实现方式中,所述确定模块,具体用于确定第一控制信道的时频资源;确定第二控制信道的时频资源;所述发送模块,具体用于根据所述第一控制信道的时频资 源发送第一下行控制信息;根据所述第二控制信道的时频资源发送第二下行控制信息。
在另一些可能的实现方式中,所述第一控制信道的时频资源占用的符号位于所述第二控制信道的时频资源占用的符号之前。
在另一些可能的实现方式中,所述第一控制信道的时频资源占用i个符号,对应符号l0,…,li-1,i为大于等于1的正整数;所述第二控制信道的时频资源起始于符号li+k,所述k为大于等以1的正整数;符号li到符号li+k-1用于参考信号传输,所述参考信号用于所述第二控制信道和/或数据的解调。
在另一些可能的实现方式中,所述第一控制信道的时频资源占用i个符号,且对应符号l0,…,li-1,i为大于等于1的正整数;所述第二控制信道的时频资源起始于符号li,或所述第二控制信道的时频资源位于符号li-1后的符号上;所述第二控制信道与下行数据复用符号li-1之后的符号对应的时频资源。
在另一些可能的实现方式中,所述确定模块,具体用于确定第一子帧中第一控制信道的时频资源;确定第一子帧中第二控制信道的时频资源;所述第一子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第一子帧包括的用于上行传输的符号对应的上行传输包括混合自动重传请求确认HARQ-ACK传输,所述第一子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输、下行数据传输和第一参考信号传输;所述第一子帧中包括的用于下行传输的符号包括所述第一控制信道的时频资源占用的符号和所述第二控制信道的时频资源占用的符号。
在另一些可能的实现方式中,所述第一控制信道的时频资源占用所述第一子帧中的i个符号,对应所述第一子帧中的第一个符号到第i个符号,i为大于等于1的正整数;所述第二控制信道的时频资源起始于所述第一子帧中的第i+k+1个符号,所述k为大于等以1的正整数;所述第一子帧中的第i+1个符号到第i+k符号用于参考信号传输,所述参考信号用于所述第二控制信道和/或数据的解调;所述第一子帧中的第l-k1个符号到第l个符号为所述第一子帧中用于上行传输的符号,所述l为所述第一子帧包括的符号的个数,所述k1为大于等于1的正整数。
在另一些可能的实现方式中,所述第一控制信道的时频资源占用所述第一子帧中的i个符号,对应所述第一子帧中的第一个符号到第i个符号,i为大于等于1的正整数;所述第二控制信道的时频资源起始于所述第一子帧中的第i+1个符号,或所述第二控制信道的时频资源位于所述第一子帧中的第i个符号后的符号上;所述第二控制信道与下行数据复用所述第一子帧中的第i符号到所述第一子帧中的第i+k2符号对应的时频资源,所述k2为大于1的正整数;所述第一子帧中的第i+k2+1个符号为所述第一子帧中的保护时间GP;所述第一子帧中的第i+k2+2个符号到第l个符号为所述第一子帧中用于上行传输的符号,所述l为所述第一子帧包括的符号的个数。
在另一些可能的实现方式中,所述确定模块,具体用于确定第二子帧中第一控制信道的时频资源;确定第二子帧中无第二控制信道的时频资源;所述第二子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第二子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输,所述第二子帧中包括的用于上行传输的符号对应 的上行传输包括所述第二参考信号传输、上行数据传输和上行控制传输。
在另一些可能的实现方式中,所述第二子帧中包括的用于下行传输的符号为所述第二子帧中的第一个符号,所述第一控制信道的时频资源占用所述第二子帧中的第一个符号。
在另一些可能的实现方式中,所述第一下行控制信息包括所述第二控制信道的时频资源信息。
在另一些可能的实现方式中,所述第一下行控制信息承载于子帧n,所述第二控制信道承载于子帧n;或,所述第一下行控制信息承载于子帧n,所述第二控制信道承载于子帧n+1;所述n为正整数。
在另一些可能的实现方式中,所述发送模块,还用于发送下行共享信道;其中所述第一下行控制信息包括所述第二下行控制信道的时频资源信息和/或所述下行共享信道的时频资源信息;所述第二下行控制信息包括所述下行共享信道的调制编码信息。
在另一些可能的实现方式中,所述发送模块,还用于在所述第一控制信道的时频资源内发送参考信号,所述参考信号用于所述第一控制信道解调。
在另一些可能的实现方式中,所述发送模块,还用于发送下行控制信令,所述下行控制信令用于确定子帧n控制信道的时频资源,所述子帧n不承载同步信号和/或系统信息,所述n为大于等于0的整数。
在另一些可能的实现方式中,所述发送模块,还用于在子帧n-k发送所述下行控制信令,所述k为大于等于0的整数。可选地,所述k等于1。
在另一些可能的实现方式中,所述确定模块,具体用于按照预定义的规则确定子帧n所述控制信道的时频资源;所述子帧n承载同步信号和/或系统信息。所述预定义的规则可以为所述控制信道的时频资源占用的符号个数为固定值,或所述控制信道的时频资源占用的符号个数为预设的值,例如为2个符号。
在另一些可能的实现方式中,所述控制信道包括控制信道集合一,所述确定模块,具体用于确定控制信道集合一的时频资源;所述发送模块,还用于采用离散传输方式基于所述控制信道集合一的时频资源发送控制信道。
在另一些可能的实现方式中,所述控制信道包括控制信道集合一和控制信道集合二,所述确定模块,具体用于确定控制信道集合一的时频资源;确定控制信道集合二的时频资源;所述控制信道集合一中的控制信道采用离散传输方式,所述控制信道集合二中的控制信道采用集中传输方式。
在另一些可能的实现方式中,所述发送模块,还用于在子帧n发送下行控制信息,所述下行控制信息包括子帧n+k控制信道集合一的时频资源信息,所述n为整数,所述k为大于等于1的正整数。
在另一些可能的实现方式中,所述确定模块,具体用于确定所述控制信道的基本集合的时频资源;所述发送模块,具体用于基于所述基本集合的时频资源发送下行控制信息,所述下行控制信息包括所述控制信道的扩展集合的时频资源信息。
在另一些可能的实现方式中,所述发送模块,还用于发送系统信息,所述系统信息包括所述控制信道的基本集合的时频资源信息。
在另一些可能的实现方式中,所述系统信息包括所述控制信道的基本集合的时频资源信息具体为:所述系统信息包括所述控制信道的基本集合的时频资源占用的符号个数信息;或,所述系统信息包括所述控制信道的基本集合的时频资源占用的物理资源块对的个数信息;或,所述系统信息包括所述控制信道的基本集合的时频资源占用的物理资源块的个数信息;或,所述系统信息包括所述控制信道的基本集合的时频资源占用的资源块的个数信息;或,所述系统信息包括所述控制信道的基本集合的时频资源占用的子载波个数信息;或,所述系统信息包括所述控制信道的基本集合的时频资源对应的控制信道单元CCE个数信息。
在另一些可能的实现方式中,所述确定模块,具体用于按照预设的规则确定所述控制信道的基本集合的时频资源。
在另一些可能的实现方式中,所述预设的规则为所述控制信道的基本集合的时频资源占用1个符号。
在另一些可能的实现方式中,所述发送模块,具体用于在子帧n基于所述基本集合的时频资源发送下行控制信息,所述下行控制信息包括子帧n+k所述控制信道的扩展集合的时频资源信息;所述n为整数,所述k为大于等于0的正整数。可选地,所述k的值等于1。
在另一些可能的实现方式中,所述下行控制信息包括指示是否存在所述控制信道的扩展集合的信息;或,所述下行控制信息包括指示所述控制信道的扩展集合对应的传输方式的信息。
在另一些可能的实现方式中,所述基本集合存在于所有包括用于下行传输符号的子帧中。
在另一些可能的实现方式中,所述扩展集合不存在于承载同步信号和/或系统信息的子帧中。
从以上技术方案可以看出,本发明实施例具有以下优点:通过确定参考信号的位置,使得第一设备能够通过参考信号进行上下行干扰估计,从而更好地发送参考信号或接收参考信号,从而更好地支持动态TDD以及保持前向兼容性。
附图说明
图1为本发明实施例信息的发送方法和接收方法一个实施例示意图;
图2为本发明实施例信息的发送方法和接收方法另一个实施例示意图;
图3为本发明实施例第一参考信号在第一子帧中的位置示意图;
图4为本发明实施例第二参考信号在第二子帧中的位置示意图;
图5为本发明实施例第一参考信号在第一子帧中的另一位置示意图;
图6为本发明实施例第二参考信号在第二子帧中的另一位置示意图;
图7为本发明实施例信息的发送方法和接收方法另一个实施例示意图;
图8为本发明实施例信息的接收方法一个实施例示意图;
图9为本发明实施例信息的发送方法一个实施例示意图;
图10为本发明实施例第一子帧时域结构示意图;
图11为本发明实施例另一个第一子帧时域结构示意图;
图12为本发明实施例设备的一个实施例示意图;
图13为本发明实施例用户设备的一个实施例示意图;
图14为本发明实施例基站的一个实施例示意图。
具体实施方式
本发明实施例提供了一种信息的发送方法、接收方法、用户设备及基站,能够更好地支持动态TDD且能够保持前向兼容性。
本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便这里描述的实施例能够以除了在这里图示或描述的内容以外的顺序实施。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。另外,本发明的说明书和权利要求书中的术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,表示前后关联对象是一种“或”的关系。
本发明主要应用于5G通信系统、长期演进(英文全称:Long Term Evolution,英文缩写:LTE)系统或LTE演进系统中,可应用于单载波和多载波。
下面结合具体的实施例描述本发明技术方案:
请参阅图1,本发明实施例中信息的发送方法和接收方法一个实施例包括:
101、第一设备确定参考信号的位置;
本实施例中,第一设备可以指用户设备,也可以指基站,参考信号可以包括第一参考信号和第二参考信号,第一参考信号可以称为第一解调参考信号DMRS,第二参考信号可以称为第二解调参考信号DMRS,第一参考信号可以用于上行数据解调,第二参考信号可以用于下行数据解调,第一参考信号的位置(时域位置和/或频域位置)和第二参考信号的位置(时域位置和/或频域位置)可以相同。
此处,若第一参考信号的位置(时域位置和/或频域位置)和第二参考信号的位置(时域位置和/或频域位置)相同,则第一设备可以通过第一参考信号和第二参考信号更好地进行上下行干扰估计,从而更好地进行上行行之间的干扰消除,从而更好地利用TDD,更好地与实际业务匹配,从而提供系统的频谱效率,更好地提供低延迟业务。
102、第一设备根据确定的参考信号的位置发送参考信号或接收参考信号。
本实施例中,第一设备确定参考信号的位置后,第一设备根据确定的参考信号的位置发送参考信号或接收参考信号。
可选地,第一设备根据第一参考信号的位置接收第一参考信号,并根据第二参考信号的位置发送第二参考信号;或,第一设备根据第一参考信号的位置发送第二参考信号,并根据第二参考信号的位置接收第二参考信号。
由于本实施例中第一设备可以为用户设备,也可以为基站,为了便于理解本发明技术方案,下面结合具体的实施例分别对第一设备为用户设备以及第一设备为基站的两种情况进行分别说明:
1、当参考信号包括第一参考信号和第二参考信号,第一设备为用户设备时,请参阅图2,本发明实施例中信息的发送方法和接收方法另一个实施例包括:
201、用户设备确定第一参考信号的位置,第一参考信号用于下行数据解调;
202、用户设备确定第二参考信号的位置,第二参考信号用于上行数据解调;
本实施例中,步骤201以及步骤202之间的先后顺序不受限制,也不限定步骤201以及步骤202之间的相互依赖关系。
需要说明的是,本实施例中第一参考信号的时域位置和第二参考信号的时域位置相同;或者第一参考信号的时域位置、频域位置和第二参考信号的时域位置、频域位置相同。
可选地,第一参考信号的时域位置与第二参考信号的时域位置相同。第一参考信号的时域位置与第二参考信号的时域位置相同也可以指第一参考信号占用的符号的符号索引与第二参考信号占用的符号的符号索引相同。
进一步可选地,第一参考信号的频域位置与第二参考信号的频域位置相同。
进一步可选地,用户设备可以通过传输单元承载参考信号,用户设备也可以通过子帧承载参考信号。
方式一,传输单元;
第一参考信号承载于第一传输单元中,第一参考信号的位置为第一参考信号在第一传输单元中的位置,第二参考信号承载于第二传输单元中,第二参考信号的位置为第二参考信号在第二传输单元中的位置,第一参考信号的时域位置与第二参考信号的时域位置相同具体为第一参考信号在第一传输单元中的时域位置与第二参考信号在第二传输单元中的时域位置相同,第一传输单元对应的时间长度等于第二传输单元对应的时间长度。
需要说明的是,本发明所有实施例中的传输单元,也可以称为传输时间单元;传输时间单元可以为子帧,还可以为传输时间间隔,还可以为完成一次共享信道传输所需要的时间长度,包括该共享信道对应的控制信道传输、参考信号传输和共享信道的传输。
进一步可选地,第一参考信号的频域位置与第二参考信号的频域位置相同为第一参考信号在第一传输单元中的频域位置与第二参考信号在第二传输单元中的频域位置相同。
进一步可选地,第一参考信号在第一传输单元中的时频资源的位置与第二传输单元中的时频资源的位置相同。
进一步可选地,第一参考信号位于第一传输单元中的第3个符号,第二参考信号位于第二传输单元中的第3个符号。
方式二,子帧;
第一参考信号承载于第一子帧中,第一参考信号的位置为第一参考信号在第一子帧中的位置,第二参考信号承载于第二子帧中,第二参考信号的位置为第二参考信号在第二子帧中的位置,第一参考信号的时域位置与第二参考信号的时域位置相同为第一参考信号在第一子帧中的时域位置与第二参考信号在第二子帧中的时域位置相同,第一参考信号的频 域位置与第二参考信号的频域位置相同为第一参考信号在第一子帧中的频域位置与第二参考信号在第二子帧中的频域位置相同,第一子帧中用于下行传输的符号的个数大于用于上行传输的符号的个数,第二子帧中用于下行传输的符号的个数小于用于上行传输的符号的个数。
此处,上述第一参考信号在第一子帧中的频域位置与第二参考信号在第二子帧中的频域位置相同,可以指第一参考信号在第一子帧中占用的频域资源的索引与所述第二参考信号在所述第二子帧中的占用的频域资源的索引相同,或指第一参考信号在第一子帧中占用的资源元素(英文全称:Resource element,英文缩写:Re)的索引与第二参考信号在第二子帧中的占用的资源元素的索引相同;第一参考信号占用的频带和第二参考信号占用的频带可以为同一频带,也可以为不同频带。
进一步可选地,第一子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,第一子帧包括的用于上行传输的符号对应的上行传输包括混合自动重传请求确认HARQ-ACK传输,第一子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输、下行数据传输和第一参考信号传输。
进一步可选地,第一子帧起始于第一子帧包括的用于下行传输的符号,终止于第一子帧包括的用于上行传输的符号。
进一步可选地,第二子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,第二子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输,第二子帧中包括的用于上行传输的符号对应的上行传输包括上行控制传输、上行数据传输和第二参考信号传输。
进一步可选地,第二子帧起始于第二子帧包括的用于下行传输的符号,终止于第二子帧包括的用于上行传输的符号。
进一步可选地,第一参考信号在第一子帧中的时域位置与第二参考信号在第二子帧中的时域位置相同具体为第一参考信号在第一子帧中占用的符号索引与第二参考信号在第二子帧中占用的符号索引相同。
进一步可选地,第一参考信号位于第一子帧中的第3个符号,第二参考信号位于第二子帧中的第3个符号。
以一个子帧包括14个符号为例,第一参考信号在第一子帧中的位置和第二参考信号在第二子帧中的位置可以分别如图3和图4所示。图3给出了第一子帧时域结构示例1,图3中第一子帧的第一个符号为用于下行控制传输的符号,第一参考信号承载于第一子帧的第3个符号,GP占用第一子帧的第13个符号,第一子帧的第14个符号用于上行控制传输。图4给出了第二子帧时域结构示例1,图4中第二子帧的第一个符号为用于下行控制传输的符号,第二参考信号承载于第二子帧的第3个符号,GP占用第二子帧的第2个符号,可选地第二子帧的第14个符号用于上行控制传输。由图可看出,图3和图4中第一参考信号在第一子帧中的位置与第二参考信号在第二子帧中的位置相同。图3和图4中将参考信号放在子帧的前面,放在第3个符号,可以在保证第一参考信号和第二参考信号位置相同的同时,快速时能数据的解调和译码。
以一个子帧包括14个符号为例的另一个例子,第一参考信号在第一子帧中的位置和第二参考信号在第二子帧中的位置可以分别如图5和图6所示。图5给出了第一子帧时域结构示例2,图5中第一子帧的第一个符号为用于下行控制传输的符号,第一参考信号承载于第一子帧的第3个符号和第4个符号上的部分资源元素RE上,第3个符号和第4个符号上的其余RE可以用于别的参考信号传输,或可以用于下行数据传输,图5中频域上相邻的两个用于所示第一参考信号的RE可以分别对应第一参考信号的不同天线口;GP占用第一子帧的第13个符号,第一子帧的第14个符号用于上行控制传输。图6给出了第二子帧时域结构示例2,图6中第二子帧的第一个符号为用于下行控制传输的符号,第二参考信号承载于第二子帧的第3个符号和第4个符号上的部分资源元素RE上,第3个符号和第4个符号上的其余RE可以用于别的参考信号传输,或可以用于上行数据传输,图6中频域上相邻的两个用于所示第一参考信号的RE可以分别对应第一参考信号的不同天线口,GP占用第二子帧的第2个符号,可选地第二子帧的第14个符号用于上行控制传输。由图可看出,图5和图6中第一参考信号在第一子帧中的位置与第二参考信号在第二子帧中的位置相同。
进一步可选地,第一子帧可以为主下行子帧(DL dominate subframe或DL centric subframe);进一步可选地,第二子帧可以为主上行子帧(UL dominate subframe或UL centric subframe),上行子帧中所有的符号都用于上行传输;
本发明实施例中的第一参考信号也可以称为第一解调参考信号(DMRS),第二参考信号也可以称为第二解调参考信号(DMRS)。
本发明所有实施例中的符号可以指时域符号,例如可以为正交频分复用(英文全称:Orthogonal Frequency Division Multiplexing,英文缩写:OFDM)符号,也可以为单载波频分多址(英文全称:Single-carrier Frequency-Division Multiple Access,英文缩写:SC-FDMA)符号。
203、用户设备根据第一参考信号的位置接收第一参考信号;
204、用户设备根据第二参考信号的位置发送第二参考信号。
本实施例中,步骤203以及步骤204之间的先后顺序不受限制,也不限定步骤203以及步骤204之间的相互依赖关系。
本实施例中,通过用于下行数据解调的第一参考信号和用于上行数据解调的第二参考信号的位置(时域位置和/或频域位置)相同,使得能够通过参考信号更好地进行上下行干扰估计,从而更好地进行上下行之间的干扰消除,从而更好地利用动态TDD,更好地与实际业务匹配,从而提供系统的频谱效率,更好地提供低延迟业务。
动态TDD机制中,一个子帧或一个传输单元的传输方向可以动态变化,即可动态应用于上行数据传输或下行数据传输,从而能够更好地匹配当前业务需求;例如,若当前业务下下行业务多余上行业务,则动态TDD可将绝大部分子帧动态变为下行数据传输,从而使得下行业务能够更快更好地传输,提供系统频谱效率,减少下行数据包延迟。但由于子帧方向可以动态变化,使得不同小区可能在相同子帧或相同传输单元上采用不同的方向,从而造成严重的上下行干扰,使得动态TDD不能获得更好的应用,或限制动态TDD的应用 场景。
本发明实施例通过使得第一参考信号和第二参考信号的位置相同,第一参考信号和第二参考信号的序列可以为预定义的序列,从而使得不同小区能更好地通过参考信号进行干扰估计和干扰消除看,从而大大减少上下行干扰,提高动态TDD的性能。
另一方面,本发明实施例中第一子帧和第二子帧都能使能自包含的控制和导频传出,即当前子帧的数据对应的控制可以在当前子帧反馈或发送,不依赖于其他子帧,从而使得其他子帧可以随时被未来业务占用,即能更好地支持前向兼容。
2、当参考信号包括第一参考信号和第二参考信号,第一设备为基站时,请参阅图7,本发明实施例中信息的发送方法和接收方法另一个实施例包括:
301、基站确定第一参考信号的位置,第一参考信号用于下行数据解调;
302、基站确定第二参考信号的位置,第二参考信号用于上行数据解调;
本实施例中,步骤301以及步骤302之间的先后顺序不受限制,也不限定步骤301以及步骤302之间的相互依赖关系。
需要说的是,本实施例步骤301以及步骤302与前述实施例步骤201以及步骤202类似,本实施例不再赘述。
303、基站根据第一参考信号的位置发送第一参考信号;
304,基站根据第二参考信号的位置接收第二参考信号。
本实施例中,步骤303以及步骤304之间的先后顺序不受限制,也不限定步骤303以及步骤304之间的相互依赖关系。
上面实施例主要从传输单元以及子帧的角度对本发明的技术方案进行描述,下面从控制信道的结构对本发明的技术方案进行描述:
请参阅图8,本发明实施例中信息的接收方法一个实施例包括:
401、用户设备确定控制信道的时频资源;
402、用户设备根据控制信道的时频资源接收下行控制信息。
下面通过一些具体的实施方式对步骤401以及步骤402进行相应的说明,需要说明的是,本发明所提供的几种实施方式是为了更好地说明技术方案,并非对本发明技术方案的限制,本发明还可以采用其他的实施方式进行相应的说明,故此处不做限定。本发明实施例的一个实施方式可以为:
可选地,用户设备确定控制信道的时频资源包括:
用户设备确定子帧n控制信道的时频资源;
若子帧n属于子帧集合一,则用户设备按照预设的规则确定子帧n控制信道的时频资源;
若子帧n属于子帧集合二,则用户设备根据下行控制信令确定子帧n控制信道的时频资源;
子帧集合一包括承载同步信号和/或系统信息的子帧,子帧集合二不包括承载同步信号和/或系统信息的子帧;
n为大于等于0的整数。
此处,子帧集合一包括承载同步信号和/或系统信息的子帧,子帧集合二不包括承载同步信号和/或系统信息的子帧;具体的,例如子帧集合一可以为承载同步信号和/或系统信息的子帧;子帧集合二可以为一个无线帧中除去承载同步信号和/或系统信息的子帧外的其余可承载下行控制信道的子帧。此处的系统信息可以为主信息块(Master information Block)。
进一步地可选地,用户设备根据下行控制信令确定子帧n控制信道的时频资源,可以为用户设备根据承载于子帧n-k的下行控制信令确定子帧n控制信道的时频资源,k为大于等于0的整数。例如,k的值等于1,此时用户设备根据承载于子帧n-1的下行控制信令确定子帧n控制信道的时频资源。需要说明的是,子帧n-k可以表示为从子帧n的前面第k个子帧,子帧n-k和子帧n可以在同一个无线帧,也可以不在同一个无线帧。当不在同一个无线帧时,子帧n-k和子帧n在相邻两个无线帧。此处,下行控制信令可以为下行控制信息,或承载于下行控制信息格式中的信息。
进一步地可选地,用户设备按照预设的规则确定子帧n控制信道的时频资源,可以为子帧n控制信道的时频资源占用2个符号;或可以为子帧n控制信道的时频资源占用的N1个符号,N1为大于等于1小于等于4的正整数;或子帧n控制信道的时频资源占用的符号个数可以通过系统消息指示,即可以通过MIB指示。
可见,通过按照预设的规则确定子帧集合一的控制信道资源,使得子帧集合一中的控制信道资源为预定义的,或为固定的,从而使得用户设能检测下行控制信道,从而完成小区的接入;同时,本发明实施例通过下行控制信令确定子帧集合二的控制信道的时频资源,使得子帧集合二中的控制信道资源能够动态变化,从而能够根据实际需求设置控制信道资源,最小化固定的下行资源,从而能够将更多的资源应用于上下行的动态变化,时能更好地利用动态TDD。另一方面,子帧集合二中的控制信道资源通过下行控制信令指示,可以更好地支持前向兼容,例如当子帧集合二中的某些子帧动态用于未来特性时,可以通过下行控制信令指示老用户设备该子帧中无下行控制信道资源,从而使得能够对新特性的支持,同时也能够兼容老用户设备。
进一步可选地,控制信道包括控制信道集合一,用户设备确定控制信道的时频资源,可以包括:
用户设备确定控制信道集合一的时频资源;
控制信道集合一中的控制信道采用离散传输方式。
此处,控制信道采用离散传输方式,可以指在该控制信道的时频资源中传输的承载一个下行控制信息DCI格式的控制信道,占用的时频资源将离散分布于该控制信道的时频资源中;例如,具体地,承载一个下行控制信息DCI格式的控制信道对应的资源元素组(resource element group)离散分布于控制信道的时频资源中。采用离散方式传输控制信道,能获得更多的分集增益,从而提高控制信道的性能。
或进一步可选地,控制信道包括控制信道集合一和控制信道集合二,用户设备确定控制信道的时频资源,包括:
用户设备确定控制信道集合一的时频资源;
用户设备确定控制信道集合二的时频资源;
控制信道集合一中的控制信道采用离散传输方式,控制信道集合二中的控制信道采用集中传输方式。
此处,控制信道采用集中传输方式,可以指在该控制信道的时频资源中传输的承载一个下行控制信息DCI格式的控制信道,占用的时频资源将集中分布于该控制信道的时频资源中;例如,具体地,承载一个下行控制信息DCI格式的控制信道对应的资源元素组(resource element group)集中分布于控制信道的时频资源中一部分时频资源上。采用集中方式传输控制信道,能够使得波束成型传输方式,使得该控制信道集中对应某个波束方向,提高控制信道的覆盖;同时,集中式传输,使得用户能够联合集中的资源中的参考信号做信道估计,从而提高信道估计性能,提高基于波束传输方式的控制信道的性能。
进一步可选地,用户设备确定控制信道集合一的时频资源,可以包括:
用户设备在子帧n检测下行控制信息;
用户设备根据子帧n检测到的下行控制信息,确定子帧n+k控制信道集合一的时频资源,n为整数,k为大于等于1的正整数;
进一步可选地,用户设备根据子帧n+k控制信道集合一的时频资源确定子帧n+k控制信道集合二的时频资源。具体地,可以为用户设备利用控制信道对应的总的时频资源减去控制信道集合一的时频资源,得到控制信道集合二的时频资源;或,
进一步地用户设备根据所述子帧n检测到的下行控制信息,确定子帧n+k控制信道集合二的时频资源,n为整数,k为大于等于1的正整数。
进一步地,承载控制信道集合二的子帧不为承载同步信号和/或系统信息的子帧;
进一步地可选地,子帧集合一中的控制信道仅包括控制信道集合一,子帧集合二中的控制信道可包括控制信道集合一和控制信道集合二;子帧集合二中的控制信道是否包括控制信道集合二以及控制信道集合二对应的时频资源可以动态指示。
进一步地,本发明实施例通过动态信令在子帧集合二中引入控制信道集合二,控制信道集合二中的控制信道采用集中方式传输,能够使得控制信道以波束成型方式传输,使得该控制信道集中对应某个波束方向,提高控制信道的覆盖;同时,集中式传输,使得用户能够联合集中的资源中的参考信号做信道估计,从而提高信道估计性能,提高基于波束传输方式的控制信道的性能。
本发明实施例的另一个实施方式可以为:
可选地,用户设备确定控制信道的时频资源包括:
用户设备确定控制信道的基本集合的时频资源;
用户设备基于基本集合的时频资源检测下行控制信息;
用户设备根据检测到的下行控制信息确定控制信道的扩展集合的时频资源。
进一步可选地,用户设备确定控制信道的基本集合的时频资源,包括:
用户设备接收系统信息;
用户设备根据系统信息确定控制信道的基本集合的时频资源。
进一步可选地,用户设备根据系统信息确定控制信道的基本集合的时频资源包括:
用户设备根据系统信息确定控制信道的基本集合的时频资源占用的符号个数;或,
用户设备根据系统信息确定控制信道的基本集合的时频资源占用的物理资源块对的个数;或,
用户设备根据系统信息确定控制信道的基本集合的时频资源占用的物理资源块的个数;或,
用户设备根据系统信息确定控制信道的基本集合的时频资源占用的资源块的个数;或,
用户设备根据系统信息确定控制信道的基本集合的时频资源占用的子载波个数;或,
用户设备根据系统信息确定控制信道的基本集合的时频资源对应的控制信道单元CCE个数。
或,进一步可选地,用户设备确定控制信道的基本集合的时频资源,包括:
用户设备按照预设的规则确定控制信道的基本集合的时频资源。
上述预设的规则可以为控制信道的基本集合的时频资源占用1个符号。
或,进一步可选地,用户设备确定控制信道的基本集合的时频资源,包括:
用户设备接收系统信息;
用户设备根据系统信息确定控制信道的基本集合的时频资源占用的物理资源块对的个数或用户设备根据系统信息确定控制信道的基本集合的时频资源占用的物理资源块的个数或用户设备根据系统信息确定控制信道的基本集合的时频资源占用的资源块的个数或用户设备根据系统信息确定控制信道的基本集合的时频资源占用的子载波个数或控制信道的基本集合的时频资源对应的控制信道单元的个数;
用户设备根据预定义的规则确定控制信道的时频资源占用的符号个数,所述预定义的规则可以为所述控制信道的时频资源占用的符号个数为固定值,或所述控制信道的时频资源占用的符号个数为预设的值,例如为2个符号。
进一步可选地,用户设备基于基本集合的时频资源检测下行控制信息;用户设备根据检测到的下行控制信息确定控制信道的扩展集合的时频资源包括:
用户设备在子帧n基于基本集合的时频资源检测下行控制信息;
用户设备根据子帧n检测到的下行控制信息,确定子帧n+k控制信道的扩展集合的时频资源,n为整数,k为大于等于0的正整数。例如,k的值等于1。
进一步地,还包括:
用户设备根据检测到的下行控制信息确定是否存在控制信道的扩展集合;或,
用户设备根据检测到的下行控制信息确定控制信道的扩展集合对应的传输方式。例如,动态指示该扩展集合对应的传输方式为集中式传输方式,或离散式传输方式。
进一步可选地,基本集合存在于所有包括用于下行传输符号的子帧中;
进一步可选地,扩展集合不存在于承载同步信号和/或系统信息的子帧中。
可见,通过按照预设的规则确定所述控制信道的基本集合的时频资源,基于所述基本集合的时频资源检测下行控制信息,根据所述检测到的下行控制信息确定所述控制信道的扩展集合的时频资源,使得最小化固定的下行资源为基本集合的时频资源,能更好地利用动态TDD。另一方面,通过动态指示扩展集合资源可以更好地支持前向兼容,例如当子帧集合二中的某些子帧动态用于未来特性时,可以动态指示老用户设备该子帧中无扩展集 合下行控制信道资源,从而使得能够对新特性的支持,同时也能够兼容老用户设备。
进一步地,本发明实施例通过动态信令指示该扩展集合的传输方式,能够更好地匹配控制信道的传输方式;例如,当该扩展控制信道主要用于公共控制信令时,可以指示该扩展集合的传输方式为离散方式,当该扩展集合信令主要用于用设备专有的信令时,可指示集中式传输方式,从而更好地匹配控制信道的传输方式。
本发明实施例的的另一个实施方式可以为:
用户设备确定控制信道的时频资源可以为:用户设备确定第一控制信道的时频资源;用户设备确定第二控制信道的时频资源。
可选地,用户设备确定第一控制信道的时频资源可以为:用户设备确定子帧n第一控制信道的时频资源;
若子帧n属于子帧集合一,则用户设备按照预设的规则确定子帧n第一控制信道的时频资源;
若子帧n属于子帧集合二,则用户设备根据下行控制信令确定子帧n第一控制信道的时频资源;
子帧集合一包括承载同步信号和/或系统信息的子帧,子帧集合二不包括承载同步信号和/或系统信息的子帧;
n为大于等于0的整数。
进一步可选地,用户设备根据下行控制信令确定子帧n第一控制信道的时频资源包括:
用户设备根据承载于子帧n-k的下行控制信令确定子帧n第一控制信道的时频资源,k为大于等于0的整数。
或进一步可选地,用户设备根据下行控制信令确定子帧n第一控制信道的时频资源包括:
用户设备根据承载于子帧n-1的下行控制信令确定子帧n第一控制信道的时频资源。
或进一步可选地,用户设备按照预设的规则确定子帧n第一控制信道的时频资源包括:
子帧n第一控制信道的时频资源时域占用2个符号。
可选地,第一控制信道包括第一控制信道集合一,用户设备确定第一控制信道的时频资源,包括:
用户设备确定第一控制信道集合一的时频资源;
第一控制信道集合一中的第一控制信道采用离散传输方式。
此处,第一控制信道采用离散传输方式,可以指在该第一控制信道的时频资源中传输的承载一个下行控制信息DCI格式的第一控制信道,占用的时频资源将离散分布于该控制信道的时频资源中;例如,具体地,承载一个下行控制信息DCI格式的控制信道对应的资源元素组(resource element group)离散分布于控制信道的时频资源中。采用离散方式传输控制信道,能获得更多的分集增益,从而提高控制信道的性能。
或可选地,第一控制信道包括第一控制信道集合一和第一控制信道集合二,用户设备确定第一控制信道的时频资源,包括:
用户设备确定第一控制信道集合一的时频资源;
用户设备确定第一控制信道集合二的时频资源;
第一控制信道集合一中的第一控制信道采用离散传输方式,第一控制信道集合二中的第一控制信道采用集中传输方式。
此处,第一控制信道采用集中传输方式,可以指在该控制信道的时频资源中传输的承载一个下行控制信息DCI格式的控制信道,占用的时频资源将集中分布于该控制信道的时频资源中;例如,具体地,承载一个下行控制信息DCI格式的控制信道对应的资源元素组(resource element group)集中分布于控制信道的时频资源中一部分时频资源上。采用集中方式传输控制信道,能够使得波束成型传输方式,使得该第一控制信道集中对应某个波束方向,提高第一控制信道的覆盖;同时,集中式传输,使得用户能够联合集中的资源中的参考信号做信道估计,从而提高信道估计性能,提高基于波束传输方式的第一控制信道的性能。
进一步可选地,用户设备确定第一控制信道集合一的时频资源,包括:
用户设备在子帧n检测下行控制信息;
用户设备根据子帧n检测到的下行控制信息,确定子帧n+k第一控制信道集合一的时频资源,n为整数,k为大于等于1的正整数。
进一步可选地,还包括:
用户设备根据子帧n+k第一控制信道集合一的时频资源确定子帧n+k第一控制信道集合二的时频资源。
进一步可选地,承载第一控制信道的子帧不承载同步信号和/或系统信息。
需要说明的是,本实施方式同样适用于后文中的二级控制信道方式中的二级控制信道中的第一控制信道。
本发明实施例的另一个实施方式可以为:
用户设备确定控制信道的时频资源可以为:用户设备确定第一控制信道的时频资源;用户设备确定第二控制信道的时频资源。
可选地,用户设备确定第一控制信道的时频资源可以为:用户设备确定第一控制信道的基本集合的时频资源;
用户设备基于基本集合的时频资源检测下行控制信息;
用户设备根据检测到的下行控制信息确定第一控制信道的扩展集合的时频资源。
进一步可选地,用户设备确定第一控制信道的基本集合的时频资源,包括:
用户设备接收系统信息;
用户设备根据系统信息确定第一控制信道的基本集合的时频资源。
或进一步可选地,用户设备根据系统信息确定第一控制信道的基本集合的时频资源,包括:
用户设备根据系统信息确定第一控制信道的基本集合的时频资源占用的符号个数;或,
用户设备根据系统信息确定第一控制信道的基本集合的时频资源占用的物理资源块对的个数;或;
用户设备根据系统信息确定第一控制信道的基本集合的时频资源占用的物理资源块的 个数;或;
用户设备根据系统信息确定第一控制信道的基本集合的时频资源占用的资源块的个数;或;
用户设备根据系统信息确定第一控制信道的基本集合的时频资源占用的子载波个数;或;
用户设备根据系统信息确定第一控制信道的基本集合的时频资源对应的控制信道单元CCE个数。
或进一步可选地,用户设备确定第一控制信道的基本集合的时频资源,包括:
用户设备按照预设的规则确定第一控制信道的基本集合的时频资源;
进一步可选地,预设的规则为第一控制信道的基本集合的时频资源占用1个符号。
可选地,用户设备确定第一控制信道的基本集合的时频资源,包括:
用户设备接收系统信息;
根据系统信息确定第一控制信道的基本集合的时频资源占用的物理资源块对的个数或第一控制信道的基本集合的时频资源占用的物理资源块的个数或第一控制信道的基本集合的时频资源占用的资源块的个数或第一控制信道的基本集合的时频资源占用的子载波个数或第一控制信道的基本集合的时频资源对应的控制信道单元的个数;
根据预定义的规则确定的第一控制信道的时频资源占用的符号个数。所述预定义的规则可以为所述控制信道的时频资源占用的符号个数为固定值,或所述控制信道的时频资源占用的符号个数为预设的值,例如为2个符号。
可选地,用户设备基于基本集合的时频资源检测下行控制信息,用户设备根据检测到的下行控制信息确定第一控制信道的扩展集合的时频资源,包括:
用户设备在子帧n基于基本集合的时频资源检测下行控制信息;
用户设备根据子帧n检测到的下行控制信息,确定子帧n+k第一控制信道的扩展集合的时频资源,n为整数,k为大于等于0的正整数。例如,k的值等于1。
可选地,还包括:
用户设备根据检测到的下行控制信息确定是否存在所述第一控制信道的扩展集合;或
用户设备根据检测到的下行控制信息确定第一控制信道的扩展集合对应的传输方式。
可选地,基本集合存在于所有包括用于下行传输符号的子帧中。
可选地,扩展集合不存在于承载同步信号和/或系统信息的子帧中。
需要说明的是,本实施方式同样适用于后文中的二级控制信道方式中的二级控制信道中的第一控制信道。
本发明实施例的另一个实施方式可以为二级控制信道方式:
用户设备确定控制信道的时频资源;用户设备根据控制信道的时频资源接收下行控制信息,具体可以包括:
用户设备确定第一控制信道的时频资源;
用户设备确定第二控制信道的时频资源;
用户设备根据第一控制信道的时频资源检测第一下行控制信息;
用户设备根据第二控制信道的时频资源检测第二下行控制信息。
进一步可选地,第一控制信道的时频资源占用的符号位于第二控制信道的时频资源占用的符号之前。
进一步可选地,第一控制信道的时频资源占用i个符号,对应符号l0,…,li-1,i为大于等于1的正整数;所述第二控制信道的时频资源起始于符号li+k,所述k为大于等以1的正整数;符号li到符号li+k-1用于参考信号传输,所述参考信号用于所述第二控制信道和/或数据的解调;或,
第一控制信道的时频资源占用i个符号,且对应符号l0,…,li-1,i为大于等于1的正整数;所述第二控制信道的时频资源起始于符号li,或所述第二控制信道的时频资源位于符号li-1后的符号上;所述第二控制信道与下行数据复用符号li-1之后的符号对应的时频资源。
此处,将第一控制信道、第二控制信道及用于第二控制信道和/或数据解调的参考信号放在前面,可以使能快速检测,降低延迟;进一步地,将用于第二控制信道和/或数据解调的参考信号放在第一控制信道之后第二控制信道之前,能够使能快速检测第二控制信道和数据;将第二控制信道和数据复用,能提高复用效率,从而提高频谱效率。
可选地,用户设备确定第一控制信道的时频资源,用户设备确定第二控制信道的时频资源包括:
用户设备确定第一子帧中第一控制信道的时频资源;
用户设备确定第一子帧中第二控制信道的时频资源;
第一子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,第一子帧包括的用于上行传输的符号对应的上行传输包括混合自动重传请求确认HARQ-ACK传输,第一子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输、下行数据传输和第一参考信号传输;
第一子帧中包括的用于下行传输的符号包括第一控制信道的时频资源占用的符号和第二控制信道的时频资源占用的符号。
进一步可选地,第一控制信道的时频资源占用所述第一子帧中的i个符号,对应所述第一子帧中的第一个符号到第i个符号,i为大于等于1的正整数;所述第二控制信道的时频资源起始于所述第一子帧中的第i+k+1个符号,所述k为大于等以1的正整数;所述第一子帧中的第i+1个符号到第i+k符号用于参考信号传输,所述参考信号用于所述第二控制信道和/或数据的解调;所述第一子帧中的第l-k1个符号到第l个符号为所述第一子帧中用于上行传输的符号,所述l为所述第一子帧包括的符号的个数,所述k1为大于等于1的正整数;或,
第一控制信道的时频资源占用所述第一子帧中的i个符号,对应所述第一子帧中的第一个符号到第i个符号,i为大于等于1的正整数;所述第二控制信道的时频资源起始于所述第一子帧中的第i+1个符号,或所述第二控制信道的时频资源位于所述第一子帧中的第i个符号后的符号上;所述第二控制信道与下行数据复用所述第一子帧中的第i符号到所述第一子帧中的第i+k2符号对应的时频资源,所述为k2大于1的正整数;所述第一子帧中的第i+k2+1个符号为所述第一子帧中的保护时间GP;所述第一子帧中的第i+k2+2个符号到 第l个符号为所述第一子帧中用于上行传输的符号,所述l为所述第一子帧包括的符号的个数。
将第一控制信道、第二控制信道及用于第二控制信道和/或数据解调的参考信号放在第一子帧的前面,可以使能快速检测,降低延迟;进一步地,将用于第二控制信道和/或数据解调的参考信号放在第一子帧的第一控制信道之后第二控制信道之前,能够使能快速检测第二控制信道和数据;将第二控制信道和数据复用,能提高复用效率,从而提高频谱效率;该第一子帧的设计,能使能自包含的控制和导频传输,即当前子帧的数据对应的控制可以在当前子帧反馈或发送,不依赖于其他子帧,从而使得其他子帧可以随时被未来业务占用,即能更好地支持前向兼容。
可选地,用户设备确定第一控制信道的时频资源,用户设备确定第二控制信道的时频资源,包括:
用户设备确定第二子帧中第一控制信道的时频资源;
用户设备确定第二子帧中无第二控制信道的时频资源;
第二子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,第二子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输,第二子帧中包括的用于上行传输的符号对应的上行传输包括第二参考信号传输、上行数据传输和上行控制传输。
进一步地,第二子帧中包括的用于下行传输的符号为第二子帧中的第一个符号,第一控制信道的时频资源占用第二子帧中的第一个符号。
此处,第二子帧主要用于上行数据传输,包括第一控制信道,可使能自包含的上行数据调度,即可通过该第一下行控制信道调度该子帧的上行数据传输,从而使能自包含的控制和导频传输,即当前子帧的数据对应的控制可以在当前子帧反馈或发送,不依赖于其他子帧,从而使得其他子帧可以随时被未来业务占用,即能更好地支持前向兼容。
进一步可选地,用户设备确定第二控制信道的时频资源包括:
用户设备根据第一下行控制信息确定第二控制信道的时频资源。
进一步可选地,第一下行控制信息承载于子帧n,第二控制信道承载于子帧n;或,第一下行控制信息承载于子帧n,第二控制信道承载于子帧n+1;n为正整数;例如k等于1。
通过第一下行控制信息指示第二控制信道的时频资源,可以控制信道资源能够动态变化,从而能够根据实际需求设置控制信道资源,最小化固定的下行资源,从而能够将更多的资源应用于上下行的动态变化,时能更好地利用动态TDD。另一方面,当利用子帧n中的第一下行控制信息指示子帧n+k中的第二控制信道资源,第二控制信道资源通过动态指示,可以更好地支持前向兼容,例如当子帧n+k用于未来特性时,可以通过下行控制信令指示老用户设备该子帧中无第二下行控制信道资源,从而使得能够对新特性的支持,同时也能够兼容老用户设备;
可选地,还包括:
用户设备根据第一下行控制信息和第二下行控制信息接收下行共享信道;
其中第一下行控制信息包括第二下行控制信道的时频资源信息和/或下行共享信道的时频资源信息;
第二下行控制信息包括下行共享信道的调制编码信息。
第二控制信道资源通过第一控制信道指示,第一控制信息和第二控制信息联合调度下行共享信道,可以使能在短传输时间单元或短传输时间间隔内调度低延迟业务,降低短传输时间单元或短传输时间间隔内的控制信道开销,同时使能快速调度低延迟业务。
进一步可选地,所述第一控制信道仅根据所述第一控制信道的时频资源内承载的参考信号进行解调。使能自包含第一控制信道,使得第一控制信道的解调不依赖于别的资源,有利于支持前向兼容。
结合前述实施方式中实现第一控制信道的说明,可以知道:通过按照预设的规则确定子帧集合一的第一控制信道资源,使得子帧集合一中的控制信道资源为预定义的,或为固定的,从而使得用户设备能检测下行控制信道,从而完成小区的接入;同时,本发明实施例通过下行控制信令确定子帧集合二的第一控制信道的时频资源,使得子帧集合二中的第一控制信道资源能够动态变化,从而能够根据实际需求设置控制信道资源,最小化固定的下行资源,从而能够将更多的资源应用于上下行的动态变化,时能更好地利用动态TDD。另一方面,子帧集合二中的第一控制信道资源通过下行控制信令指示,可以更好地支持前向兼容,例如当子帧集合二中的某些子帧动态用于未来特性时,可以通过下行控制信令指示老用户设备该子帧中无第一下行控制信道资源,从而使得能够对新特性的支持,同时也能够兼容老用户设备。
通过按照预设的规则确定所述第一控制信道的基本集合的时频资源,基于所述基本集合的时频资源检测下行控制信息,根据所述检测到的下行控制信息确定所述第一控制信道的扩展集合的时频资源,使得最小化固定的下行资源为基本集合的时频资源,能更好地利用动态TDD。另一方面,通过动态指示扩展集合资源可以更好地支持前向兼容,例如当子帧集合二中的某些子帧动态用于未来特性时,可以动态指示老用户设备该子帧中无扩展集合下行控制信道资源,从而使得能够对新特性的支持,同时也能够兼容老用户设备。
进一步地,通过动态信令指示该扩展集合的传输方式,能够更好地匹配控制信道的传输方式;例如,当该扩展控制信道主要用于公共控制信令时,可以指示该扩展集合的传输方式为离散方式,当该扩展集合信令主要用于用设备专有的信令时,可指示集中式传输方式,从而更好地匹配控制信道的传输方式。
请参阅图9,本发明实施例中信息的发送方法一个实施例包括:
501、基站确定控制信道的时频资源;
502、基站根据控制信道的时频资源发送下行控制信息。
下面通过一些具体的实施方式对本步骤501以及步骤502进行相应的说明,需要说明的是,本发明所提供的几种实施方式是为了更好地说明技术方案,并非对本发明技术方案的限制,本发明还可以采用其他的实施方式进行相应的说明,故此处不做限定。本发明实施例的一个实施方式可以为:
可选地,基站确定控制信道的时频资源包括:
基站发送下行控制信令,该下行控制信令用于确定子帧n控制信道的时频资源,子帧n不承载同步信号和/或系统信息,子帧n为大于等于0的整数。
进一步可选地,基站发送下行控制信令,包括:
基站在子帧n-k发送下行控制信令,k为大于等于0的整数。例如,k等于1。
进一步可选地,基站确定控制信道的时频资源包括:
基站按照预定义的规则确定子帧n控制信道的时频资源;所述预定义的规则可以为所述控制信道的时频资源占用的符号个数为固定值,或所述控制信道的时频资源占用的符号个数为预设的值,例如为2个符号。
其中子帧n可以属于子帧集合一,子帧集合一包括承载同步信号和/或系统信息的子帧。
进一步地,基站按照预设的规则确定子帧n控制信道的时频资源,可以为子帧n控制信道的时频资源占用2个符号;或可以为子帧n控制信道的时频资源占用的N1个符号,N1位大于等于1小于等于4的正整数。
进一步可选地,控制信道包括控制信道集合一,基站确定控制信道的时频资源,可以包括:
基站确定控制信道集合一的时频资源;
基站采用离散传输方式基于控制信道集合一的时频资源发送控制信道;
此处,控制信道采用离散传输方式,可以指在该控制信道的时频资源中传输的承载一个下行控制信息DCI格式的控制信道,占用的时频资源将离散分布于该控制信道的时频资源中;例如,具体地,承载一个下行控制信息DCI格式的控制信道对应的资源元素组(resource element group)离散分布于控制信道的时频资源中。采用离散方式传输控制信道,能获得更多的分集增益,从而提高控制信道的性能。
或进一步可选地,控制信道包括控制信道集合一和控制信道集合二,基站确定控制信道的时频资源,包括:
基站确定控制信道集合一的时频资源;
基站确定控制信道集合二的时频资源;
控制信道集合一中的控制信道采用离散传输方式,控制信道集合二中的控制信道采用集中传输方式。
此处,控制信道采用集中传输方式,可以指在该控制信道的时频资源中传输的承载一个下行控制信息DCI格式的控制信道,占用的时频资源将集中分布于该控制信道的时频资源中;例如,具体地,承载一个下行控制信息DCI格式的控制信道对应的资源元素组(resource element group)集中分布于控制信道的时频资源中一部分时频资源上。采用集中方式传输控制信道,能够使得波束成型传输方式,使得该控制信道集中对应某个波束方向,提高控制信道的覆盖;同时,集中式传输,使得用户能够联合集中的资源中的参考信号做信道估计,从而提高信道估计性能,提高基于波束传输方式的控制信道的性能。
本发明实施例的另一个实施方式可以为:
该步骤中,基站确定控制信道的时频资源,进一步可以包括:
基站确定控制信道的基本集合的时频资源;
基站基于基本集合的时频资源发送下行控制信息,下行控制信息包括控制信道的扩展集合的时频资源信息。
进一步可选地,还包括:
基站发送系统信息,系统信息包括控制信道的基本集合的时频资源信息。
进一步可选地,系统信息包括控制信道的基本集合的时频资源信息,包括:
系统信息包括控制信道的基本集合的时频资源占用的符号个数信息;或,
系统信息包括控制信道的基本集合的时频资源占用的物理资源块对的个数信息;或,
系统信息包括控制信道的基本集合的时频资源占用的物理资源块的个数信息;或,
系统信息包括控制信道的基本集合的时频资源占用的资源块的个数信息;或,
系统信息包括控制信道的基本集合的时频资源占用的子载波个数信息;或,
系统信息包括控制信道的基本集合的时频资源对应的控制信道单元CCE个数信息;
进一步可选地,基站确定控制信道的基本集合的时频资源,包括:
基站按照预设的规则确定控制信道的基本集合的时频资源;
进一步地,预设的规则为控制信道的基本集合的时频资源占用1个符号。
进一步可选地,基站基于基本集合的时频资源发送下行控制信息,下行控制信息包括控制信道的扩展集合的时频资源信息,包括:
基站在子帧n基于基本集合的时频资源发送下行控制信息,下行控制信息包括子帧n+k控制信道的扩展集合的时频资源信息;
n为整数,k为大于等于0的正整数。例如,k的值等于1。
可选地,还包括:
下行控制信息包括指示存在所述控制信道的扩展集合的信息;或,
下行控制信息包括指示控制信道的扩展集合对应的传输方式的信息。
可选地,基本集合存在于所有包括用于下行传输符号的子帧中。
可选地,扩展集合不存在于承载同步信号和/或系统信息的子帧中。
本发明实施例的另一个实施方式可以为:
该步骤中,基站确定控制信道的时频资源,进一步可以包括:
基站发送下行控制信令,下行控制信令用于确定子帧n第一控制信道的时频资源,子帧n不承载同步信号和/或系统信息,n为大于等于0的整数。
可选地,基站发送下行控制信令,包括:
所述站在子帧n-k发送下行控制信令,k为大于等于0的整数。例如,k等于1。
可选地,基站确定第一控制信道的时频资源包括:
基站按照预定义的规则确定子帧n第一控制信道的时频资源;
子帧n承载同步信号和/或系统信息。
或可选地,第一控制信道包括第一控制信道集合一,基站确定第一控制信道的时频资源包括:
基站确定第一控制信道集合一的时频资源;
基站采用离散传输方式基于第一控制信道集合一的时频资源发送第一控制信道。
此处,第一控制信道采用离散传输方式,可以指在该第一控制信道的时频资源中传输的承载一个下行控制信息DCI格式的第一控制信道,占用的时频资源将离散分布于该控制 信道的时频资源中;例如,具体地,承载一个下行控制信息DCI格式的控制信道对应的资源元素组(resource element group)离散分布于控制信道的时频资源中。采用离散方式传输控制信道,能获得更多的分集增益,从而提高第一控制信道的性能。
或可选地,第一控制信道包括第一控制信道集合一和第一控制信道集合二,基站确定第一控制信道的时频资源包括:
基站确定第一控制信道集合一的时频资源;
基站确定第一控制信道集合二的时频资源;
第一控制信道集合一中的第一控制信道采用离散传输方式,第一控制信道集合二中的第一控制信道采用集中传输方式。
此处,第一控制信道采用集中传输方式,可以指在该控制信道的时频资源中传输的承载一个下行控制信息DCI格式的第一控制信道,占用的时频资源将集中分布于该控制信道的时频资源中;例如,具体地,承载一个下行控制信息DCI格式的控制信道对应的资源元素组(resource element group)集中分布于控制信道的时频资源中一部分时频资源上。采用集中方式传输控制信道,能够使得波束成型传输方式,使得该控制信道集中对应某个波束方向,提高控制信道的覆盖;同时,集中式传输,使得用户能够联合集中的资源中的参考信号做信道估计,从而提高信道估计性能,提高基于波束传输方式的第一控制信道的性能。
进一步地,还包括:
基站在子帧n发送下行控制信息,该下行控制信息包括子帧n+k第一控制信道集合一的时频资源信息,n为整数,k为大于等于1的正整数。
图10给出了一个具体实例,图10中第一控制信道的时频资源占用第一子帧中的i个符号,对应第一子帧中的第一个符号到第i个符号,i为大于等于1的正整数,i等于2;第一控制信道包括第一控制信道集合一(采用离散传输方式)和第一控制信道集合二(采用集中传输方式);第一子帧的第3个符号用于参考信号传输,该参考信号用于第二控制信道和/或数据的解调;第二控制信道的时频资源起始于第一子帧的第4个符号;第一子帧的第13个符号用做GP;第一子帧的第14个符号用于上行传输。图5中,UE1对应的第一控制信道指示UE1对应的第二控制信道资源,UE1对应的第二控制信道调度UE1的下行共享信道传输数据,UE1和UE2对应的第一控制信道和第二控制信道可以都使用基于波束的传输方式;UE1对应的第一控制信道采用集中传输方式。
本发明实施例的另一个实施方式可以为:
该步骤中,基站确定控制信道的时频资源,进一步可以包括:
基站确定第一控制信道的时频资源。
进一步地,基站确定第一控制信道的时频资源包括:
基站确定第一控制信道的基本集合的时频资源;
基站基于基本集合的时频资源发送下行控制信息,下行控制信息包括第一控制信道的扩展集合的时频资源信息。
可选地,还包括:
基站发送系统信息,该系统信息包括第一控制信道的基本集合的时频资源信息。
进一步地,该系统信息包括第一控制信道的基本集合的时频资源信息具体为:
系统信息包括第一控制信道的基本集合的时频资源占用的符号个数信息;或,
系统信息包括第一控制信道的基本集合的时频资源占用的物理资源块对的个数信息;或,
系统信息包括第一控制信道的基本集合的时频资源占用的物理资源块的个数信息;或,
系统信息包括第一控制信道的基本集合的时频资源占用的资源块的个数信息;或,
系统信息包括第一控制信道的基本集合的时频资源占用的子载波个数信息;或,
系统信息包括第一控制信道的基本集合的时频资源对应的控制信道单元CCE个数信息。
可选地,基站确定控制信道的基本集合的时频资源,包括:
基站按照预设的规则确定第一控制信道的基本集合的时频资源。
进一步地,预设的规则为第一控制信道的基本集合的时频资源占用1个符号。
可选地,基站基于基本集合的时频资源发送下行控制信息,下行控制信息包括第一控制信道的扩展集合的时频资源信息,包括:
基站在子帧n基于基本集合的时频资源发送下行控制信息,下行控制信息包括子帧n+k第一控制信道的扩展集合的时频资源信息;n为整数,k为大于等于0的正整数。例如,k的值等于1。
可选地,还包括:
下行控制信息包括指示存在第一控制信道的扩展集合的信息;或,
下行控制信息包括指示第一控制信道的扩展集合对应的传输方式的信息。
可选地,基本集合存在于所有包括用于下行传输符号的子帧中。
可选地,扩展集合不存在于承载同步信号和/或系统信息的子帧中。
图11给出了一个具体实例,图11中第一控制信道的时频资源占用第一子帧中的i个符号,对应第一子帧中的第一个符号到第i个符号,i为大于等于1的正整数,i等于2;第一控制信道包括第一控制信道基本集合和第一控制信道扩展集合,第一控制信道扩展集合的资源可以通过前面子帧的第一控制信道进行指示;第一子帧的第3个符号用于参考信号传输,该参考信号用于第二控制信道和/或数据的解调;第二控制信道的时频资源起始于第一子帧的第4个符号;第一子帧的第13个符号用做GP;第一子帧的第14个符号用于上行传输。图6中,动态指示扩展集合资源可以更好地支持前向兼容,例如当子帧集合二中的某些子帧动态用于未来特性时,可以动态指示老用户设备该子帧中无扩展集合下行控制信道资源,从而使得能够对新特性的支持,同时也能够兼容老用户设备。
本发明实施例的另一个实施方式可以为二级控制信道方式:
基站确定控制信道的时频资源;基站根据控制信道的时频资源发送下行控制信息,具体可以包括:
基站确定第一控制信道的时频资源;
基站确定第二控制信道的时频资源;
基站根据第一控制信道的时频资源检测第一下行控制信息;
基站根据第二控制信道的时频资源检测第二下行控制信息。
进一步可选地,第一控制信道的时频资源占用的符号位于第二控制信道的时频资源占用的符号之前。
进一步可选地,第一控制信道的时频资源占用i个符号,对应符号l0,…,li-1,i为大于等于1的正整数;所述第二控制信道的时频资源起始于符号li+k,所述k为大于等以1的正整数;符号li到符号li+k-1用于参考信号传输,所述参考信号用于所述第二控制信道和/或数据的解调;或,
第一控制信道的时频资源占用i个符号,且对应符号l0,…,li-1,i为大于等于1的正整数;所述第二控制信道的时频资源起始于符号li,或所述第二控制信道的时频资源位于符号li-1后的符号上;所述第二控制信道与下行数据复用符号li-1之后的符号对应的时频资源。
此处,将第一控制信道、第二控制信道及用于第二控制信道和/或数据解调的参考信号放在前面,可以使能快速检测,降低延迟;进一步地,将用于第二控制信道和/或数据解调的参考信号放在第一控制信道之后第二控制信道之前,能够使能快速检测第二控制信道和数据;将第二控制信道和数据复用,能提高复用效率,从而提高频谱效率。
可选地,基站确定第一控制信道的时频资源,基站确定第二控制信道的时频资源包括:
基站确定第一子帧中第一控制信道的时频资源;
基站确定第一子帧中第二控制信道的时频资源;
第一子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,第一子帧包括的用于上行传输的符号对应的上行传输包括混合自动重传请求确认HARQ-ACK传输,第一子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输、下行数据传输和第一参考信号传输;
第一子帧中包括的用于下行传输的符号包括第一控制信道的时频资源占用的符号和第二控制信道的时频资源占用的符号。
进一步可选地,第一控制信道的时频资源占用所述第一子帧中的i个符号,对应所述第一子帧中的第一个符号到第i个符号,i为大于等于1的正整数;所述第二控制信道的时频资源起始于所述第一子帧中的第i+k+1个符号,所述k为大于等以1的正整数;所述第一子帧中的第i+1个符号到第i+k符号用于参考信号传输,所述参考信号用于所述第二控制信道和/或数据的解调;所述第一子帧中的第l-k1个符号到第l个符号为所述第一子帧中用于上行传输的符号,所述l为所述第一子帧包括的符号的个数,所述k1为大于等于1的正整数;或,
第一控制信道的时频资源占用所述第一子帧中的i个符号,对应所述第一子帧中的第一个符号到第i个符号,i为大于等于1的正整数;所述第二控制信道的时频资源起始于所述第一子帧中的第i+1个符号,或所述第二控制信道的时频资源位于所述第一子帧中的第i个符号后的符号上;所述第二控制信道与下行数据复用所述第一子帧中的第i符号到所述第一子帧中的第i+k2符号对应的时频资源,所述为k2大于1的正整数;所述第一子帧中的第i+k2+1个符号为所述第一子帧中的保护时间GP;所述第一子帧中的第i+k2+2个符号到第l个符号为所述第一子帧中用于上行传输的符号,所述l为所述第一子帧包括的符号的个 数。
将第一控制信道、第二控制信道及用于第二控制信道和/或数据解调的参考信号放在第一子帧的前面,可以使能快速检测,降低延迟;进一步地,将用于第二控制信道和/或数据解调的参考信号放在第一子帧的第一控制信道之后第二控制信道之前,能够使能快速检测第二控制信道和数据;将第二控制信道和数据复用,能提高复用效率,从而提高频谱效率;该第一子帧的设计,能使能自包含的控制和导频传输,即当前子帧的数据对应的控制可以在当前子帧反馈或发送,不依赖于其他子帧,从而使得其他子帧可以随时被未来业务占用,即能更好地支持前向兼容。
可选地,基站确定第一控制信道的时频资源,基站确定第二控制信道的时频资源,包括:
基站确定第二子帧中第一控制信道的时频资源;
基站确定第二子帧中无第二控制信道的时频资源;
第二子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,第二子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输,第二子帧中包括的用于上行传输的符号对应的上行传输包括第二参考信号传输、上行数据传输和上行控制传输。
进一步地,第二子帧中包括的用于下行传输的符号为第二子帧中的第一个符号,第一控制信道的时频资源占用第二子帧中的第一个符号。
此处,第二子帧主要用于上行数据传输,包括第一控制信道,可使能自包含的上行数据调度,即可通过该第一下行控制信道调度该子帧的上行数据传输,从而使能自包含的控制和导频传输,即当前子帧的数据对应的控制可以在当前子帧反馈或发送,不依赖于其他子帧,从而使得其他子帧可以随时被未来业务占用,即能更好地支持前向兼容。
进一步可选地,基站根据第一控制信道的时频资源检测第一下行控制信息,第一下行控制信息包括第二控制信道的时频资源信息。
进一步地,第一下行控制信息承载于子帧n,第二控制信道承载于子帧n;或,第一下行控制信息承载于子帧n,第二控制信道承载于子帧n+k,k为大于等于1的正整数,例如k等于1;n为正整数。
通过第一下行控制信息指示第二控制信道的时频资源,可以控制信道资源能够动态变化,从而能够根据实际需求设置控制信道资源,最小化固定的下行资源,从而能够将更多的资源应用于上下行的动态变化,时能更好地利用动态TDD。另一方面,当利用子帧n中的第一下行控制信息指示子帧n+k中的第二控制信道资源,第二控制信道资源通过动态指示,可以更好地支持前向兼容,例如当子帧n+k用于未来特性时,可以通过下行控制信令指示老用户设备该子帧中无第二下行控制信道资源,从而使得能够对新特性的支持,同时也能够兼容老用户设备;
可选地,还包括:
基站发送下行共享信道;
其中第一下行控制信息包括第二下行控制信道的时频资源信息和/或下行共享信道的时频资源信息;
第二下行控制信息包括下行共享信道的调制编码信息。
第二控制信道资源通过第一控制信道指示,第一控制信息和第二控制信息联合调度下行共享信道,可以使能在短传输时间单元或短传输时间间隔内调度低延迟业务,降低短传输时间单元或短传输时间间隔内的控制信道开销,同时使能快速调度低延迟业务。
进一步可选地,基站在第一控制信道的时频资源内发送参考信号,参考信号用于第一控制信道解调。使能自包含第一控制信道,使得第一控制信道的解调不依赖于别的资源,有利于支持前向兼容。
结合前述实施方式中实现第一控制信道的说明,可以知道:通过按照预设的规则确定子帧集合一的第一控制信道资源,使得子帧集合一中的控制信道资源为预定义的,或为固定的,从而使得用户设备能检测下行控制信道,从而完成小区的接入;同时,本发明实施例通过下行控制信令确定子帧集合二的第一控制信道的时频资源,使得子帧集合二中的第一控制信道资源能够动态变化,从而能够根据实际需求设置控制信道资源,最小化固定的下行资源,从而能够将更多的资源应用于上下行的动态变化,时能更好地利用动态TDD。另一方面,子帧集合二中的第一控制信道资源通过下行控制信令指示,可以更好地支持前向兼容,例如当子帧集合二中的某些子帧动态用于未来特性时,可以通过下行控制信令指示老用户设备该子帧中无第一下行控制信道资源,从而使得能够对新特性的支持,同时也能够兼容老用户设备。
通过按照预设的规则确定所述第一控制信道的基本集合的时频资源,基于所述基本集合的时频资源检测下行控制信息,根据所述检测到的下行控制信息确定所述第一控制信道的扩展集合的时频资源,使得最小化固定的下行资源为基本集合的时频资源,能更好地利用动态TDD。另一方面,通过动态指示扩展集合资源可以更好地支持前向兼容,例如当子帧集合二中的某些子帧动态用于未来特性时,可以动态指示老用户设备该子帧中无扩展集合下行控制信道资源,从而使得能够对新特性的支持,同时也能够兼容老用户设备。
进一步地,通过动态信令指示该扩展集合的传输方式,能够更好地匹配控制信道的传输方式;例如,当该扩展控制信道主要用于公共控制信令时,可以指示该扩展集合的传输方式为离散方式,当该扩展集合信令主要用于用设备专有的信令时,可指示集中式传输方式,从而更好地匹配控制信道的传输方式。
请参阅图12,本发明实施例中设备的一个实施例示意图包括:
确定模块601,用于确定参考信号的位置;
收发模块602,用于根据确定的参考信号的位置发送参考信号或接收所述参考信号。
本实施例中,关于本实施例中涉及的名词的解释说明、确定模块601以及收发模块602的具体说明可以参见前述步骤101、步骤102、步骤201至步骤204、步骤301至步骤304,此处不再赘述。
请参阅图13,本发明实施例中用户设备的一个实施例示意图包括:
确定模块701,用于确定控制信道的时频资源;
接收模块702,用于根据控制信道的时频资源接收下行控制信息。
本实施例中,确定模块701以及接收模块702的具体说明可以参见前述步骤401以及 步骤402,此处不再赘述。
请参阅图14,本发明实施例中基站的一个实施例示意图包括:
确定模块801,用于确定控制信道的时频资源;
发送模块802,用于根据控制信道的时频资源发送下行控制信息。
本实施例中,确定模块801以及发送模块802的具体说明可以参见前述步骤501以及步骤502,此处不再赘述。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统,装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统,装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本发明各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,以上实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (158)

  1. 一种信息的发送方法和接收方法,其特征在于,包括:
    第一设备确定参考信号的位置;
    所述第一设备根据确定的所述参考信号的位置发送所述参考信号或接收所述参考信号。
  2. 根据权利要求1所述的方法,其特征在于,所述参考信号包括第一参考信号和第二参考信号,所述第一设备确定参考信号的位置包括:
    所述第一设备确定第一参考信号的位置,所述第一参考信号用于下行数据解调;
    所述第一设备确定第二参考信号的位置,所述第二参考信号用于上行数据解调;
    其中,所述第一参考信号的时域位置与所述第二参考信号的时域位置相同。
  3. 根据权利要求2所述的方法,其特征在于,所述第一参考信号的频域位置与所述第二参考信号的频域位置相同。
  4. 根据权利要求2所述的方法,其特征在于,所述第一参考信号承载于第一传输单元中,所述第一参考信号的位置为所述第一参考信号在所述第一传输单元中的位置,所述第二参考信号承载于第二传输单元中,所述第二参考信号的位置为所述第二参考信号在所述第二传输单元中的位置,所述第一参考信号的时域位置与所述第二参考信号的时域位置相同具体为所述第一参考信号在所述第一传输单元中的时域位置与所述第二参考信号在所述第二传输单元中的时域位置相同,所述第一传输单元对应的时间长度等于所述第二传输单元对应的时间长度。
  5. 根据权利要求3所述的方法,其特征在于,所述第一参考信号承载于第一传输单元中,所述第一参考信号的位置为所述第一参考信号在所述第一传输单元中的位置,所述第二参考信号承载于第二传输单元中,所述第二参考信号的位置为所述第二参考信号在所述第二传输单元中的位置,所述第一参考信号的时域位置与所述第二参考信号的时域位置相同为所述第一参考信号在所述第一传输单元中的时域位置与所述第二参考信号在所述第二传输单元中的时域位置相同,所述第一参考信号的频域位置与所述第二参考信号的频域位置相同为所述第一参考信号在所述第一传输单元中的频域位置与所述第二参考信号在所述第二传输单元中的频域位置相同,所述第一传输单元对应的时间长度等于所述第二传输单元对应的时间长度。
  6. 根据权利要求4或5所述的方法,其特征在于,所述第一参考信号位于所述第一传输单元中的第3个符号,所述第二参考信号位于所述第二传输单元中的第3个符号。
  7. 根据权利要求2所述的方法,其特征在于,所述第一参考信号承载于第一子帧中,所述第一参考信号的位置为所述第一参考信号在所述第一子帧中的位置,所述第二参考信号承载于第二子帧中,所述第二参考信号的位置为所述第二参考信号在所述第二子帧中的位置,所述第一参考信号的时域位置与所述第二参考信号的时域位置相同为所述第一参考信号在所述第一子帧中的时域位置与所述第二参考信号在所述第二子帧中的时域位置相同,所述第一子帧中用于下行传输的符号的个数大于用于上行传输的符号的个数,所述第二子帧中用于下行传输的符号的个数小于用于上行传输的符号的个数。
  8. 根据权利要求3所述的方法,其特征在于,所述第一参考信号承载于第一子帧中,所述第一参考信号的位置为所述第一参考信号在所述第一子帧中的位置,所述第二参考信号承载于第二子帧中,所述第二参考信号的位置为所述第二参考信号在所述第二子帧中的位置,所述第一参考信号的时域位置与所述第二参考信号的时域位置相同为所述第一参考信号在所述第一子帧中的时域位置与所述第二参考信号在所述第二子帧中的时域位置相同,所述第一参考信号的频域位置与所述第二参考信号的频域位置相同为所述第一参考信号在所述第一子帧中的频域位置与所述第二参考信号在所述第二子帧中的频域位置相同,所述第一子帧中用于下行传输的符号的个数大于用于上行传输的符号的个数,所述第二子帧中用于下行传输的符号的个数小于用于上行传输的符号的个数。
  9. 根据权利要求7或8所述的方法,其特征在于,所述第一子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第一子帧包括的用于上行传输的符号对应的上行传输包括混合自动重传请求确认HARQ-ACK传输,所述第一子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输、下行数据传输和所述第一参考信号传输;所述第二子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第二子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输,所述第二子帧中包括的用于上行传输的符号对应的上行传输包括上行控制传输、上行数据传输和所述第二参考信号传输。
  10. 根据权利要求9所述的方法,其特征在于,所述第一子帧起始于所述第一子帧包括的用于下行传输的符号,终止于所述第一子帧包括的用于上行传输的符号;所述第二子帧起始于所述第二子帧包括的用于下行传输的符号,终止于所述第二子帧包括的用于上行传输的符号。
  11. 根据权利要求7至10任意一项所述的方法,其特征在于,所述第一参考信号在所述第一子帧中的时域位置与所述第二参考信号在所述第二子帧中的时域位置相同具体为所述第一参考信号在所述第一子帧中占用的符号索引与所述第二参考信号在所述第二子帧中占用的符号索引相同。
  12. 根据权利要求10所述的方法,其特征在于,所述第一参考信号位于所述第一子帧中的第3个符号,所述第二参考信号位于所述第二子帧中的第3个符号。
  13. 根据权利要求2至12任意一项所述的方法,其特征在于,所述第一设备为用户设备,所述第一设备根据确定的所述参考信号的位置发送所述参考信号或接收所述参考信号包括:
    所述用户设备根据所述第一参考信号的位置接收所述第一参考信号;
    所述用户设备根据所述第二参考信号的位置发送所述第二参考信号。
  14. 根据权利要求2至12任意一项所述的方法,其特征在于,所述第一设备为基站,所述第一设备根据确定的所述参考信号的位置发送所述参考信号或接收所述参考信号包括:
    所述基站根据所述第一参考信号的位置发送所述第一参考信号;
    所述基站根据所述第二参考信号的位置接收所述第二参考信号。
  15. 一种信息的接收方法,其特征在于,包括:
    用户设备确定控制信道的时频资源;
    所述用户设备根据所述控制信道的时频资源接收下行控制信息。
  16. 根据权利要求15所述的方法,其特征在于,所述用户设备确定控制信道的时频资源,所述用户设备根据所述控制信道的时频资源接收下行控制信息包括:
    所述用户设备确定第一控制信道的时频资源;
    所述用户设备确定第二控制信道的时频资源;
    所述用户设备根据所述第一控制信道的时频资源检测第一下行控制信息;
    所述用户设备根据所述第二控制信道的时频资源检测第二下行控制信息。
  17. 根据权利要求16所述的方法,其特征在于,所述第一控制信道的时频资源占用的符号位于所述第二控制信道的时频资源占用的符号之前。
  18. 根据权利要求17所述的方法,其特征在于,所述第一控制信道的时频资源占用i个符号,对应符号l0,…,li-1,i为大于等于1的正整数;所述第二控制信道的时频资源起始于符号li+k,所述k为大于等以1的正整数;符号li到符号li+k-1用于参考信号传输,所述参考信号用于所述第二控制信道和/或数据的解调。
  19. 根据权利要求17所述的方法,其特征在于,所述第一控制信道的时频资源占用i个符号,且对应符号l0,…,li-1,i为大于等于1的正整数;所述第二控制信道的时频资源起始于符号li,或所述第二控制信道的时频资源位于符号li-1后的符号上;所述第二控制信道与下行数据复用符号li-1之后的符号对应的时频资源。
  20. 根据权利要求16所述的方法,其特征在于,所述用户设备确定第一控制信道的时频资源,所述用户设备确定第二控制信道的时频资源包括:
    所述用户设备确定第一子帧中第一控制信道的时频资源;
    所述用户设备确定第一子帧中第二控制信道的时频资源;
    所述第一子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第一子帧包括的用于上行传输的符号对应的上行传输包括混合自动重传请求确认HARQ-ACK传输,所述第一子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输、下行数据传输和第一参考信号传输;
    所述第一子帧中包括的用于下行传输的符号包括所述第一控制信道的时频资源占用的符号和所述第二控制信道的时频资源占用的符号。
  21. 根据权利要求20所述的方法,其特征在于,所述第一控制信道的时频资源占用所述第一子帧中的i个符号,对应所述第一子帧中的第一个符号到第i个符号,i为大于等于1的正整数;所述第二控制信道的时频资源起始于所述第一子帧中的第i+k+1个符号,所述k为大于等以1的正整数;所述第一子帧中的第i+1个符号到第i+k符号用于参考信号传输,所述参考信号用于所述第二控制信道和/或数据的解调;所述第一子帧中的第l-k1个符号到第l个符号为所述第一子帧中用于上行传输的符号,所述l为所述第一子帧包括的符号的个数,所述k1为大于等于1的正整数。
  22. 根据权利要求20所述的方法,其特征在于,所述第一控制信道的时频资源占用所 述第一子帧中的i个符号,对应所述第一子帧中的第一个符号到第i个符号,i为大于等于1的正整数;所述第二控制信道的时频资源起始于所述第一子帧中的第i+1个符号,或所述第二控制信道的时频资源位于所述第一子帧中的第i个符号后的符号上;所述第二控制信道与下行数据复用所述第一子帧中的第i符号到所述第一子帧中的第i+k2符号对应的时频资源,所述为k2大于1的正整数;所述第一子帧中的第i+k2+1个符号为所述第一子帧中的保护时间GP;所述第一子帧中的第i+k2+2个符号到第l个符号为所述第一子帧中用于上行传输的符号,所述l为所述第一子帧包括的符号的个数。
  23. 根据权利要求16所述的方法,其特征在于,所述用户设备确定第一控制信道的时频资源,所述用户设备确定第二控制信道的时频资源,包括:
    所述用户设备确定第二子帧中第一控制信道的时频资源;
    所述用户设备确定第二子帧中无第二控制信道的时频资源;
    所述第二子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第二子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输,所述第二子帧中包括的用于上行传输的符号对应的上行传输包括所述第二参考信号传输、上行数据传输和上行控制传输。
  24. 根据权利要求23所述的方法,其特征在于,所述第二子帧中包括的用于下行传输的符号为所述第二子帧中的第一个符号,所述第一控制信道的时频资源占用所述第二子帧中的第一个符号。
  25. 根据权利要求16至24任意一项所述的方法,其特征在于,所述用户设备确定第二控制信道的时频资源包括:
    所述用户设备根据所述第一下行控制信息确定所述第二控制信道的时频资源。
  26. 根据权利要求25所述的方法,其特征在于,所述第一下行控制信息承载于子帧n,所述第二控制信道承载于子帧n;或,
    所述第一下行控制信息承载于子帧n,所述第二控制信道承载于子帧n+1;
    所述n为正整数。
  27. 根据权利要求16至26任意一项所述的方法,其特征在于,所述方法还包括:
    所述用户设备根据所述第一下行控制信息和所述第二下行控制信息接收下行共享信道;
    其中所述第一下行控制信息包括所述第二下行控制信道的时频资源信息和/或所述下行共享信道的时频资源信息;
    所述第二下行控制信息包括所述下行共享信道的调制编码信息。
  28. 根据权利要求16至27任意一项所述的方法,其特征在于,所述第一控制信道根据所述第一控制信道的时频资源内承载的参考信号进行解调。
  29. 根据权利要求15所述的方法,其特征在于,所述用户设备确定控制信道的时频资源,包括:
    所述用户设备确定子帧n控制信道的时频资源;
    若所述子帧n属于子帧集合一,则所述用户设备按照预设的规则确定所述子帧n控制 信道的时频资源;
    若所述子帧n属于子帧集合二,则所述用户设备根据下行控制信令确定所述子帧n控制信道的时频资源;
    所述子帧集合一包括承载同步信号和/或系统信息的子帧,所述子帧集合二不包括承载同步信号和/或系统信息的子帧;
    所述n为大于等于0的整数。
  30. 根据权利要求29所述的方法,其特征在于,所述用户设备根据下行控制信令确定所述子帧n控制信道的时频资源,包括:
    所述用户设备根据承载于子帧n-k的下行控制信令确定所述子帧n控制信道的时频资源,所述k为大于等于0的整数。
  31. 根据权利要求29所述的方法,其特征在于,所述用户设备根据下行控制信令确定所述子帧n控制信道的时频资源,包括:
    所述用户设备根据承载于子帧n-1的下行控制信令确定所述子帧n控制信道的时频资源。
  32. 根据权利要求29所述的方法,其特征在于,所述子帧n控制信道的时频资源时域占用2个符号。
  33. 根据权利要求15所述的方法,其特征在于,所述控制信道包括控制信道集合一,所述用户设备确定控制信道的时频资源,包括:
    所述用户设备确定控制信道集合一的时频资源;
    所述控制信道集合一中的控制信道采用离散传输方式。
  34. 根据权利要求15所述的方法,其特征在于,所述控制信道包括控制信道集合一和控制信道集合二,所述用户设备确定控制信道的时频资源,包括:
    所述用户设备确定控制信道集合一的时频资源;
    所述用户设备确定控制信道集合二的时频资源;
    所述控制信道集合一中的控制信道采用离散传输方式,所述控制信道集合二中的控制信道采用集中传输方式。
  35. 根据权利要求34所述的方法,其特征在于,所述用户设备确定控制信道集合一的时频资源,包括:
    所述用户设备在子帧n检测下行控制信息;
    所述用户设备根据所述子帧n检测到的下行控制信息,确定子帧n+k控制信道集合一的时频资源,所述n为整数,所述k为大于等于1的正整数。
  36. 根据权利要求35所述的方法,其特征在于,所述方法还包括:
    所述用户设备根据所述子帧n+k控制信道集合一的时频资源确定所述子帧n+k控制信道集合二的时频资源。
  37. 根据权利要求34至36任意一项所述的方法,其特征在于,承载所述控制信道的子帧不承载同步信号和/或系统信息。
  38. 根据权利要求15所述的方法,其特征在于,所述用户设备确定控制信道的时频资 源,包括:
    所述用户设备确定所述控制信道的基本集合的时频资源;
    所述用户设备基于所述基本集合的时频资源检测下行控制信息;
    所述用户设备根据所述检测到的下行控制信息确定所述控制信道的扩展集合的时频资源。
  39. 根据权利要求38所述的方法,其特征在于,所述用户设备确定所述控制信道的基本集合的时频资源,包括:
    所述用户设备接收系统信息;
    所述用户设备根据所述系统信息确定所述控制信道的基本集合的时频资源。
  40. 根据权利要求39所述的方法,其特征在于,所述用户设备根据所述系统信息确定所述控制信道的基本集合的时频资源包括:
    所述用户设备根据所述系统信息确定所述控制信道的基本集合的时频资源占用的符号个数;或,
    所述用户设备根据所述系统信息确定所述控制信道的基本集合的时频资源占用的物理资源块的个数;或,
    所述用户设备根据所述系统信息确定所述控制信道的基本集合的时频资源对应的控制信道单元CCE个数。
  41. 根据权利要求38所述的方法,其特征在于,所述用户设备确定所述控制信道的基本集合的时频资源,包括:
    所述用户设备按照预设的规则确定所述控制信道的基本集合的时频资源。
  42. 根据权利要求41所述的方法,其特征在于,所述预设的规则为所述控制信道的基本集合的时频资源占用1个符号。
  43. 根据权利要求38所述的方法,其特征在于,所述用户设备确定所述控制信道的基本集合的时频资源,包括:
    所述用户设备接收系统信息;
    所述用户设备根据所述系统信息确定所述控制信道的基本集合的时频资源占用的物理资源块的个数或所述控制信道的基本集合的时频资源对应的控制信道单元的个数;
    所述用户设备根据预定义的规则确定所述控制信道的时频资源占用的符号个数。
  44. 根据权利要求38所述的方法,其特征在于,所述用户设备基于所述基本集合的时频资源检测下行控制信息;所述用户设备根据所述检测到的下行控制信息确定所述控制信道的扩展集合的时频资源包括:
    所述用户设备在子帧n基于所述基本集合的时频资源检测下行控制信息;
    所述用户设备根据所述子帧n检测到的下行控制信息,确定子帧n+k所述控制信道的扩展集合的时频资源,所述n为整数,所述k为大于等于0的正整数。
  45. 根据权利要求44所述的方法,其特征在于,所述k的值等于1。
  46. 根据权利要求38至45任意一项所述的方法,其特征在于,所述方法还包括:
    所述用户设备根据所述检测到的下行控制信息确定是否存在所述控制信道的扩展集 合;或,
    所述用户设备根据所述检测到的下行控制信息确定所述控制信道的扩展集合对应的传输方式。
  47. 根据权利要求38至46任意一项所述的方法,其特征在于,所述基本集合存在于所有包括用于下行传输符号的子帧中。
  48. 根据权利要求38至47任意一项所述的方法,其特征在于,所述扩展集合不存在于承载同步信号和/或系统信息的子帧中。
  49. 一种信息的发送方法,其特征在于,包括:
    基站确定控制信道的时频资源;
    所述基站根据所述控制信道的时频资源发送下行控制信息。
  50. 根据权利要求49所述的方法,其特征在于,所述基站确定控制信道的时频资源,所述基站根据所述控制信道的时频资源发送下行控制信息包括:
    基站确定第一控制信道的时频资源;
    所述基站确定第二控制信道的时频资源;
    所述基站根据所述第一控制信道的时频资源发送第一下行控制信息;
    所述基站根据所述第二控制信道的时频资源发送第二下行控制信息。
  51. 根据权利要求50所述的方法,其特征在于,所述第一控制信道的时频资源占用的符号位于所述第二控制信道的时频资源占用的符号之前。
  52. 根据权利要求51所述的方法,其特征在于,所述第一控制信道的时频资源占用i个符号,对应符号l0,…,li-1,i为大于等于1的正整数;所述第二控制信道的时频资源起始于符号li+k,所述k为大于等以1的正整数;符号li到符号li+k-1用于参考信号传输,所述参考信号用于所述第二控制信道和/或数据的解调。
  53. 根据权利要求51所述的方法,其特征在于,所述第一控制信道的时频资源占用i个符号,且对应符号l0,…,li-1,i为大于等于1的正整数;所述第二控制信道的时频资源起始于符号li,或所述第二控制信道的时频资源位于符号li-1后的符号上;所述第二控制信道与下行数据复用符号li-1之后的符号对应的时频资源。
  54. 根据权利要求50所述的方法,其特征在于,所述基站确定第一控制信道的时频资源,所述基站确定第二控制信道的时频资源,包括:
    所述基站确定第一子帧中第一控制信道的时频资源;
    所述基站确定第一子帧中第二控制信道的时频资源;
    所述第一子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第一子帧包括的用于上行传输的符号对应的上行传输包括混合自动重传请求确认HARQ-ACK传输,所述第一子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输、下行数据传输和第一参考信号传输;
    所述第一子帧中包括的用于下行传输的符号包括所述第一控制信道的时频资源占用的符号和所述第二控制信道的时频资源占用的符号。
  55. 根据权利要求54所述的方法,其特征在于,所述第一控制信道的时频资源占用所 述第一子帧中的i个符号,对应所述第一子帧中的第一个符号到第i个符号,i为大于等于1的正整数;所述第二控制信道的时频资源起始于所述第一子帧中的第i+k+1个符号,所述k为大于等以1的正整数;所述第一子帧中的第i+1个符号到第i+k符号用于参考信号传输,所述参考信号用于所述第二控制信道和/或数据的解调;所述第一子帧中的第l-k1个符号到第l个符号为所述第一子帧中用于上行传输的符号,所述l为所述第一子帧包括的符号的个数,所述k1为大于等于1的正整数。
  56. 根据权利要求54所述的方法,其特征在于,所述第一控制信道的时频资源占用所述第一子帧中的i个符号,对应所述第一子帧中的第一个符号到第i个符号,i为大于等于1的正整数;所述第二控制信道的时频资源起始于所述第一子帧中的第i+1个符号,或所述第二控制信道的时频资源位于所述第一子帧中的第i个符号后的符号上;所述第二控制信道与下行数据复用所述第一子帧中的第i符号到所述第一子帧中的第i+k2符号对应的时频资源,所述k2为大于1的正整数;所述第一子帧中的第i+k2+1个符号为所述第一子帧中的保护时间GP;所述第一子帧中的第i+k2+2个符号到第l个符号为所述第一子帧中用于上行传输的符号,所述l为所述第一子帧包括的符号的个数。
  57. 根据权利要求50所述的方法,其特征在于,所述基站确定第一控制信道的时频资源,所述基站确定第二控制信道的时频资源,包括:
    所述基站确定第二子帧中第一控制信道的时频资源;
    所述基站确定第二子帧中无第二控制信道的时频资源;
    所述第二子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第二子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输,所述第二子帧中包括的用于上行传输的符号对应的上行传输包括所述第二参考信号传输、上行数据传输和上行控制传输。
  58. 根据权利要求57所述的方法,其特征在于,所述第二子帧中包括的用于下行传输的符号为所述第二子帧中的第一个符号,所述第一控制信道的时频资源占用所述第二子帧中的第一个符号。
  59. 根据权利要求50至58任意一项所述的方法,其特征在于,所述第一下行控制信息包括所述第二控制信道的时频资源信息。
  60. 根据权利要求59所述的方法,其特征在于,所述第一下行控制信息承载于子帧n,所述第二控制信道承载于子帧n;或,
    所述第一下行控制信息承载于子帧n,所述第二控制信道承载于子帧n+1;
    所述n为正整数。
  61. 根据权利要求50至60任意一项所述的方法,其特征在于,所述方法还包括:
    所述基站发送下行共享信道;
    其中所述第一下行控制信息包括所述第二下行控制信道的时频资源信息和/或所述下行共享信道的时频资源信息;
    所述第二下行控制信息包括所述下行共享信道的调制编码信息。
  62. 根据权利要求50至61任意一项所述的方法,其特征在于,所述方法还包括:
    所述基站在所述第一控制信道的时频资源内发送参考信号,所述参考信号用于所述第一控制信道解调。
  63. 根据权利要求49所述的方法,其特征在于,所述方法还包括:
    所述基站发送下行控制信令,所述下行控制信令用于确定子帧n控制信道的时频资源,所述子帧n不承载同步信号和/或系统信息,所述n为大于等于0的整数。
  64. 根据权利要求63所述的方法,其特征在于,所述基站发送下行控制信令,包括:
    所述基站在子帧n-k发送所述下行控制信令,所述k为大于等于0的整数。
  65. 根据权利要求64所述的方法,其特征在于,所述k等于1。
  66. 根据权利要求49所述的方法,其特征在于,所述基站确定控制信道的时频资源,包括:
    所述基站按照预定义的规则确定子帧n所述控制信道的时频资源;
    所述子帧n承载同步信号和/或系统信息。
  67. 根据权利要求49所述的方法,其特征在于,所述控制信道包括控制信道集合一,所述基站确定控制信道的时频资源,包括:
    所述基站确定控制信道集合一的时频资源;
    所述方法还包括:
    所述基站采用离散传输方式基于所述控制信道集合一的时频资源发送控制信道。
  68. 根据权利要求49所述的方法,其特征在于,所述控制信道包括控制信道集合一和控制信道集合二,所述基站确定控制信道的时频资源,包括:
    所述基站确定控制信道集合一的时频资源;
    所述基站确定控制信道集合二的时频资源;
    所述控制信道集合一中的控制信道采用离散传输方式,所述控制信道集合二中的控制信道采用集中传输方式。
  69. 根据权利要求68所述的方法,其特征在于,所述方法还包括:
    所述基站在子帧n发送下行控制信息,所述下行控制信息包括子帧n+k控制信道集合一的时频资源信息,所述n为整数,所述k为大于等于1的正整数。
  70. 根据权利要求49所述的方法,其特征在于,所述基站确定控制信道的时频资源,所述基站根据所述控制信道的时频资源发送下行控制信息包括:
    所述基站确定所述控制信道的基本集合的时频资源;
    所述基站基于所述基本集合的时频资源发送下行控制信息,所述下行控制信息包括所述控制信道的扩展集合的时频资源信息。
  71. 根据权利要求70所述的方法,其特征在于,所述方法还包括:
    所述基站发送系统信息,所述系统信息包括所述控制信道的基本集合的时频资源信息。
  72. 根据权利要求71所述的方法,其特征在于,所述系统信息包括所述控制信道的基本集合的时频资源信息具体为:
    所述系统信息包括所述控制信道的基本集合的时频资源占用的符号个数信息;或,
    所述系统信息包括所述控制信道的基本集合的时频资源占用的物理资源块的个数信 息;或,
    所述系统信息包括所述控制信道的基本集合的时频资源对应的控制信道单元CCE个数信息。
  73. 根据权利要求70所述的方法,其特征在于,所述基站确定所述控制信道的基本集合的时频资源,包括:
    所述基站按照预设的规则确定所述控制信道的基本集合的时频资源。
  74. 根据权利要求72所述的方法,其特征在于,所述预设的规则为所述控制信道的基本集合的时频资源占用1个符号。
  75. 根据权利要求70所述的方法,其特征在于,所述基站基于所述基本集合的时频资源发送下行控制信息,所述下行控制信息包括所述控制信道的扩展集合的时频资源信息,包括:
    所述基站在子帧n基于所述基本集合的时频资源发送下行控制信息,所述下行控制信息包括子帧n+k所述控制信道的扩展集合的时频资源信息;
    所述n为整数,所述k为大于等于0的正整数。
  76. 根据权利要求75所述的方法,其特征在于,所述k的值等于1。
  77. 根据权利要求70至76任意一项所述的方法,其特征在于,所述下行控制信息包括指示是否存在所述控制信道的扩展集合的信息;或,
    所述下行控制信息包括指示所述控制信道的扩展集合对应的传输方式的信息。
  78. 根据权利要求70至77任意一项所述的方法,其特征在于,所述基本集合存在于所有包括用于下行传输符号的子帧中。
  79. 根据权利要求70至78任意一项所述的方法,其特征在于,所述扩展集合不存在于承载同步信号和/或系统信息的子帧中。
  80. 一种设备,其特征在于,作为第一设备使用,包括:
    确定模块,用于确定参考信号的位置;
    收发模块,用于根据确定的所述参考信号的位置发送所述参考信号或接收所述参考信号。
  81. 根据权利要求80所述的设备,其特征在于,所述参考信号包括第一参考信号和第二参考信号,所述确定模块,具体用于确定第一参考信号的位置,所述第一参考信号用于下行数据解调;确定第二参考信号的位置,所述第二参考信号用于上行数据解调;其中,所述第一参考信号的时域位置与所述第二参考信号的时域位置相同。
  82. 根据权利要求81所述的设备,其特征在于,所述第一参考信号的频域位置与所述第二参考信号的频域位置相同。
  83. 根据权利要求81所述的设备,其特征在于,所述第一参考信号承载于第一传输单元中,所述第一参考信号的位置为所述第一参考信号在所述第一传输单元中的位置,所述第二参考信号承载于第二传输单元中,所述第二参考信号的位置为所述第二参考信号在所述第二传输单元中的位置,所述第一参考信号的时域位置与所述第二参考信号的时域位置相同具体为所述第一参考信号在所述第一传输单元中的时域位置与所述第二参考信号在所 述第二传输单元中的时域位置相同,所述第一传输单元对应的时间长度等于所述第二传输单元对应的时间长度。
  84. 根据权利要求82所述的设备,其特征在于,所述第一参考信号承载于第一传输单元中,所述第一参考信号的位置为所述第一参考信号在所述第一传输单元中的位置,所述第二参考信号承载于第二传输单元中,所述第二参考信号的位置为所述第二参考信号在所述第二传输单元中的位置,所述第一参考信号的时域位置与所述第二参考信号的时域位置相同为所述第一参考信号在所述第一传输单元中的时域位置与所述第二参考信号在所述第二传输单元中的时域位置相同,所述第一参考信号的频域位置与所述第二参考信号的频域位置相同为所述第一参考信号在所述第一传输单元中的频域位置与所述第二参考信号在所述第二传输单元中的频域位置相同,所述第一传输单元对应的时间长度等于所述第二传输单元对应的时间长度。
  85. 根据权利要求83或84所述的设备,其特征在于,所述第一参考信号位于所述第一传输单元中的第3个符号,所述第二参考信号位于所述第二传输单元中的第3个符号。
  86. 根据权利要求81所述的设备,其特征在于,所述第一参考信号承载于第一子帧中,所述第一参考信号的位置为所述第一参考信号在所述第一子帧中的位置,所述第二参考信号承载于第二子帧中,所述第二参考信号的位置为所述第二参考信号在所述第二子帧中的位置,所述第一参考信号的时域位置与所述第二参考信号的时域位置相同为所述第一参考信号在所述第一子帧中的时域位置与所述第二参考信号在所述第二子帧中的时域位置相同,所述第一子帧中用于下行传输的符号的个数大于用于上行传输的符号的个数,所述第二子帧中用于下行传输的符号的个数小于用于上行传输的符号的个数。
  87. 根据权利要求82所述的设备,其特征在于,所述第一参考信号承载于第一子帧中,所述第一参考信号的位置为所述第一参考信号在所述第一子帧中的位置,所述第二参考信号承载于第二子帧中,所述第二参考信号的位置为所述第二参考信号在所述第二子帧中的位置,所述第一参考信号的时域位置与所述第二参考信号的时域位置相同为所述第一参考信号在所述第一子帧中的时域位置与所述第二参考信号在所述第二子帧中的时域位置相同,所述第一参考信号的频域位置与所述第二参考信号的频域位置相同为所述第一参考信号在所述第一子帧中的频域位置与所述第二参考信号在所述第二子帧中的频域位置相同,所述第一子帧中用于下行传输的符号的个数大于用于上行传输的符号的个数,所述第二子帧中用于下行传输的符号的个数小于用于上行传输的符号的个数。
  88. 根据权利要求86或87所述的设备,其特征在于,所述第一子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第一子帧包括的用于上行传输的符号对应的上行传输包括混合自动重传请求确认HARQ-ACK传输,所述第一子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输、下行数据传输和所述第一参考信号传输;所述第二子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第二子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输,所述第二子帧中包括的用于上行传输的符号对应的上行传输包括上行控制传输、上行数据传输和所述第二参考信号传输。
  89. 根据权利要求88所述的设备,其特征在于,所述第一子帧起始于所述第一子帧包括的用于下行传输的符号,终止于所述第一子帧包括的用于上行传输的符号;所述第二子帧起始于所述第二子帧包括的用于下行传输的符号,终止于所述第二子帧包括的用于上行传输的符号。
  90. 根据权利要求86至89任意一项所述的设备,其特征在于,所述第一参考信号在所述第一子帧中的时域位置与所述第二参考信号在所述第二子帧中的时域位置相同具体为所述第一参考信号在所述第一子帧中占用的符号索引与所述第二参考信号在所述第二子帧中占用的符号索引相同。
  91. 根据权利要求89所述的设备,其特征在于,所述第一参考信号位于所述第一子帧中的第3个符号,所述第二参考信号位于所述第二子帧中的第3个符号。
  92. 根据权利要求81至91任意一项所述的设备,其特征在于,所述第一设备为用户设备,所述收发模块,具体用于根据所述第一参考信号的位置接收所述第一参考信号;根据所述第二参考信号的位置发送所述第二参考信号。
  93. 根据权利要求81至91任意一项所述的设备,其特征在于,所述第一设备为基站,所述收发模块,具体用于根据所述第一参考信号的位置发送所述第一参考信号;根据所述第二参考信号的位置接收所述第二参考信号。
  94. 一种用户设备,其特征在于,包括:
    确定模块,用于确定控制信道的时频资源;
    接收模块,用于根据所述控制信道的时频资源接收下行控制信息。
  95. 根据权利要求94所述的用户设备,其特征在于,所述确定模块,具体用于确定第一控制信道的时频资源;确定第二控制信道的时频资源;
    所述接收模块,具体用于根据所述第一控制信道的时频资源检测第一下行控制信息;根据所述第二控制信道的时频资源检测第二下行控制信息。
  96. 根据权利要求95所述的用户设备,其特征在于,所述第一控制信道的时频资源占用的符号位于所述第二控制信道的时频资源占用的符号之前。
  97. 根据权利要求96所述的用户设备,其特征在于,所述第一控制信道的时频资源占用i个符号,对应符号l0,…,li-1,i为大于等于1的正整数;所述第二控制信道的时频资源起始于符号li+k,所述k为大于等以1的正整数;符号li到符号li+k-1用于参考信号传输,所述参考信号用于所述第二控制信道和/或数据的解调。
  98. 根据权利要求96所述的用户设备,其特征在于,所述第一控制信道的时频资源占用i个符号,且对应符号l0,…,li-1,i为大于等于1的正整数;所述第二控制信道的时频资源起始于符号li,或所述第二控制信道的时频资源位于符号li-1后的符号上;所述第二控制信道与下行数据复用符号li-1之后的符号对应的时频资源。
  99. 根据权利要求95所述的用户设备,其特征在于,所述确定模块,具体用于确定第一子帧中第一控制信道的时频资源;确定第一子帧中第二控制信道的时频资源;所述第一子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第一子帧包括的用于上行传输的符号对应的上行传输包括混合自动重传请求确认HARQ-ACK传输,所 述第一子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输、下行数据传输和第一参考信号传输;所述第一子帧中包括的用于下行传输的符号包括所述第一控制信道的时频资源占用的符号和所述第二控制信道的时频资源占用的符号。
  100. 根据权利要求99所述的用户设备,其特征在于,所述第一控制信道的时频资源占用所述第一子帧中的i个符号,对应所述第一子帧中的第一个符号到第i个符号,i为大于等于1的正整数;所述第二控制信道的时频资源起始于所述第一子帧中的第i+k+1个符号,所述k为大于等以1的正整数;所述第一子帧中的第i+1个符号到第i+k符号用于参考信号传输,所述参考信号用于所述第二控制信道和/或数据的解调;所述第一子帧中的第l-k1个符号到第l个符号为所述第一子帧中用于上行传输的符号,所述l为所述第一子帧包括的符号的个数,所述k1为大于等于1的正整数。
  101. 根据权利要求99所述的用户设备,其特征在于,所述第一控制信道的时频资源占用所述第一子帧中的i个符号,对应所述第一子帧中的第一个符号到第i个符号,i为大于等于1的正整数;所述第二控制信道的时频资源起始于所述第一子帧中的第i+1个符号,或所述第二控制信道的时频资源位于所述第一子帧中的第i个符号后的符号上;所述第二控制信道与下行数据复用所述第一子帧中的第i符号到所述第一子帧中的第i+k2符号对应的时频资源,所述为k2大于1的正整数;所述第一子帧中的第i+k2+1个符号为所述第一子帧中的保护时间GP;所述第一子帧中的第i+k2+2个符号到第l个符号为所述第一子帧中用于上行传输的符号,所述l为所述第一子帧包括的符号的个数。
  102. 根据权利要求95所述的用户设备,其特征在于,所述确定模块,具体用于确定第二子帧中第一控制信道的时频资源;确定第二子帧中无第二控制信道的时频资源;所述第二子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第二子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输,所述第二子帧中包括的用于上行传输的符号对应的上行传输包括所述第二参考信号传输、上行数据传输和上行控制传输。
  103. 根据权利要求102所述的用户设备,其特征在于,所述第二子帧中包括的用于下行传输的符号为所述第二子帧中的第一个符号,所述第一控制信道的时频资源占用所述第二子帧中的第一个符号。
  104. 根据权利要求95至103任意一项所述的用户设备,其特征在于,所述确定模块,还用于根据所述第一下行控制信息确定所述第二控制信道的时频资源。
  105. 根据权利要求104所述的用户设备,其特征在于,所述第一下行控制信息承载于子帧n,所述第二控制信道承载于子帧n;或,
    所述第一下行控制信息承载于子帧n,所述第二控制信道承载于子帧n+1;
    所述n为正整数。
  106. 根据权利要求95至105任意一项所述的用户设备,其特征在于,所述接收模块,还用于根据所述第一下行控制信息和所述第二下行控制信息接收下行共享信道;其中所述第一下行控制信息包括所述第二下行控制信道的时频资源信息和/或所述下行共享信道的时频资源信息;所述第二下行控制信息包括所述下行共享信道的调制编码信息。
  107. 根据权利要求95至106任意一项所述的用户设备,其特征在于,所述第一控制信道根据所述第一控制信道的时频资源内承载的参考信号进行解调。
  108. 根据权利要求94所述的用户设备,其特征在于,所述确定模块,具体用于确定子帧n控制信道的时频资源;若所述子帧n属于子帧集合一,则所述确定模块按照预设的规则确定所述子帧n控制信道的时频资源;若所述子帧n属于子帧集合二,则所述确定模块根据下行控制信令确定所述子帧n控制信道的时频资源;所述子帧集合一包括承载同步信号和/或系统信息的子帧,所述子帧集合二不包括承载同步信号和/或系统信息的子帧;所述n为大于等于0的整数。
  109. 根据权利要求108所述的用户设备,其特征在于,所述确定模块,具体用于根据承载于子帧n-k的下行控制信令确定所述子帧n控制信道的时频资源,所述k为大于等于0的整数。
  110. 根据权利要求108所述的用户设备,其特征在于,所述确定模块,具体用于根据承载于子帧n-1的下行控制信令确定所述子帧n控制信道的时频资源。
  111. 根据权利要求108所述的用户设备,其特征在于,所述子帧n控制信道的时频资源时域占用2个符号。
  112. 根据权利要求94所述的用户设备,其特征在于,所述控制信道包括控制信道集合一,所述确定模块,具体用于确定控制信道集合一的时频资源;所述控制信道集合一中的控制信道采用离散传输方式。
  113. 根据权利要求94所述的用户设备,其特征在于,所述控制信道包括控制信道集合一和控制信道集合二,所述确定模块,具体用于确定控制信道集合一的时频资源;确定控制信道集合二的时频资源;所述控制信道集合一中的控制信道采用离散传输方式,所述控制信道集合二中的控制信道采用集中传输方式。
  114. 根据权利要求113所述的用户设备,其特征在于,所述确定模块,还用于在子帧n检测下行控制信息;根据所述子帧n检测到的下行控制信息,确定子帧n+k控制信道集合一的时频资源,所述n为整数,所述k为大于等于1的正整数。
  115. 根据权利要求114所述的用户设备,其特征在于,所述确定模块,还用于根据所述子帧n+k控制信道集合一的时频资源确定所述子帧n+k控制信道集合二的时频资源。
  116. 根据权利要求113至115任意一项所述的用户设备,其特征在于,承载所述控制信道的子帧不承载同步信号和/或系统信息。
  117. 根据权利要求94所述的用户设备,其特征在于,所述确定模块,具体用于确定所述控制信道的基本集合的时频资源;基于所述基本集合的时频资源检测下行控制信息;根据所述检测到的下行控制信息确定所述控制信道的扩展集合的时频资源。
  118. 根据权利要求117所述的用户设备,其特征在于,所述接收模块,还用于接收系统信息;所述确定模块,还用于根据所述系统信息确定所述控制信道的基本集合的时频资源。
  119. 根据权利要求118所述的用户设备,其特征在于,所述确定模块,还用于根据所述系统信息确定所述控制信道的基本集合的时频资源占用的符号个数;或,根据所述系统 信息确定所述控制信道的基本集合的时频资源占用的物理资源块的个数;或,根据所述系统信息确定所述控制信道的基本集合的时频资源对应的控制信道单元CCE个数。
  120. 根据权利要求117所述的用户设备,其特征在于,所述确定模块,具体用于按照预设的规则确定所述控制信道的基本集合的时频资源。
  121. 根据权利要求120所述的用户设备,其特征在于,所述预设的规则为所述控制信道的基本集合的时频资源占用1个符号。
  122. 根据权利要求117所述的用户设备,其特征在于,所述接收模块,还用于接收系统信息;所述确定模块,具体用于根据所述系统信息确定所述控制信道的基本集合的时频资源占用的物理资源块的个数或所述控制信道的基本集合的时频资源对应的控制信道单元的个数;所述用户设备根据预定义的规则确定所述控制信道的时频资源占用的符号个数。
  123. 根据权利要求117所述的用户设备,其特征在于,所述用户设备还包括:
    检测模块,用于在子帧n基于所述基本集合的时频资源检测下行控制信息;
    所述确定模块,具体用于根据所述子帧n检测到的下行控制信息,确定子帧n+k所述控制信道的扩展集合的时频资源,所述n为整数,所述k为大于等于0的正整数。
  124. 根据权利要求123所述的用户设备,其特征在于,所述k的值等于1。
  125. 根据权利要求117至124任意一项所述的用户设备,其特征在于,所述确定模块,还用于根据所述检测到的下行控制信息确定是否存在所述控制信道的扩展集合;或,根据所述检测到的下行控制信息确定所述控制信道的扩展集合对应的传输方式。
  126. 根据权利要求117至125任意一项所述的用户设备,其特征在于,所述基本集合存在于所有包括用于下行传输符号的子帧中。
  127. 根据权利要求117至126任意一项所述的用户设备,其特征在于,所述扩展集合不存在于承载同步信号和/或系统信息的子帧中。
  128. 一种基站,其特征在于,包括:
    确定模块,用于确定控制信道的时频资源;
    发送模块,用于根据所述控制信道的时频资源发送下行控制信息。
  129. 根据权利要求128所述的基站,其特征在于,所述确定模块,具体用于确定第一控制信道的时频资源;确定第二控制信道的时频资源;所述发送模块,具体用于根据所述第一控制信道的时频资源发送第一下行控制信息;根据所述第二控制信道的时频资源发送第二下行控制信息。
  130. 根据权利要求129所述的基站,其特征在于,所述第一控制信道的时频资源占用的符号位于所述第二控制信道的时频资源占用的符号之前。
  131. 根据权利要求130所述的基站,其特征在于,所述第一控制信道的时频资源占用i个符号,对应符号l0,…,li-1,i为大于等于1的正整数;所述第二控制信道的时频资源起始于符号li+k,所述k为大于等以1的正整数;符号li到符号li+k-1用于参考信号传输,所述参考信号用于所述第二控制信道和/或数据的解调。
  132. 根据权利要求130所述的基站,其特征在于,所述第一控制信道的时频资源占用i个符号,且对应符号l0,…,li-1,i为大于等于1的正整数;所述第二控制信道的时频资源 起始于符号li,或所述第二控制信道的时频资源位于符号li-1后的符号上;所述第二控制信道与下行数据复用符号li-1之后的符号对应的时频资源。
  133. 根据权利要求129所述的基站,其特征在于,所述确定模块,具体用于确定第一子帧中第一控制信道的时频资源;确定第一子帧中第二控制信道的时频资源;所述第一子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第一子帧包括的用于上行传输的符号对应的上行传输包括混合自动重传请求确认HARQ-ACK传输,所述第一子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输、下行数据传输和第一参考信号传输;所述第一子帧中包括的用于下行传输的符号包括所述第一控制信道的时频资源占用的符号和所述第二控制信道的时频资源占用的符号。
  134. 根据权利要求133所述的基站,其特征在于,所述第一控制信道的时频资源占用所述第一子帧中的i个符号,对应所述第一子帧中的第一个符号到第i个符号,i为大于等于1的正整数;所述第二控制信道的时频资源起始于所述第一子帧中的第i+k+1个符号,所述k为大于等以1的正整数;所述第一子帧中的第i+1个符号到第i+k符号用于参考信号传输,所述参考信号用于所述第二控制信道和/或数据的解调;所述第一子帧中的第l-k1个符号到第l个符号为所述第一子帧中用于上行传输的符号,所述l为所述第一子帧包括的符号的个数,所述k1为大于等于1的正整数。
  135. 根据权利要求133所述的基站,其特征在于,所述第一控制信道的时频资源占用所述第一子帧中的i个符号,对应所述第一子帧中的第一个符号到第i个符号,i为大于等于1的正整数;所述第二控制信道的时频资源起始于所述第一子帧中的第i+1个符号,或所述第二控制信道的时频资源位于所述第一子帧中的第i个符号后的符号上;所述第二控制信道与下行数据复用所述第一子帧中的第i符号到所述第一子帧中的第i+k2符号对应的时频资源,所述k2为大于1的正整数;所述第一子帧中的第i+k2+1个符号为所述第一子帧中的保护时间GP;所述第一子帧中的第i+k2+2个符号到第l个符号为所述第一子帧中用于上行传输的符号,所述l为所述第一子帧包括的符号的个数。
  136. 根据权利要求129所述的基站,其特征在于,所述确定模块,具体用于确定第二子帧中第一控制信道的时频资源;确定第二子帧中无第二控制信道的时频资源;所述第二子帧包括用于下行传输的符号,保护时间GP和用于上行传输的符号,所述第二子帧中包括的用于下行传输的符号对应的下行传输包括下行控制传输,所述第二子帧中包括的用于上行传输的符号对应的上行传输包括所述第二参考信号传输、上行数据传输和上行控制传输。
  137. 根据权利要求136所述的基站,其特征在于,所述第二子帧中包括的用于下行传输的符号为所述第二子帧中的第一个符号,所述第一控制信道的时频资源占用所述第二子帧中的第一个符号。
  138. 根据权利要求129至137任意一项所述的基站,其特征在于,所述第一下行控制信息包括所述第二控制信道的时频资源信息。
  139. 根据权利要求138所述的基站,其特征在于,所述第一下行控制信息承载于子帧n,所述第二控制信道承载于子帧n;或,所述第一下行控制信息承载于子帧n,所述第二 控制信道承载于子帧n+1;所述n为正整数。
  140. 根据权利要求129至139任意一项所述的基站,其特征在于,所述发送模块,还用于发送下行共享信道;其中所述第一下行控制信息包括所述第二下行控制信道的时频资源信息和/或所述下行共享信道的时频资源信息;所述第二下行控制信息包括所述下行共享信道的调制编码信息。
  141. 根据权利要求129至140任意一项所述的基站,其特征在于,所述发送模块,还用于在所述第一控制信道的时频资源内发送参考信号,所述参考信号用于所述第一控制信道解调。
  142. 根据权利要求128所述的基站,其特征在于,所述发送模块,还用于发送下行控制信令,所述下行控制信令用于确定子帧n控制信道的时频资源,所述子帧n不承载同步信号和/或系统信息,所述n为大于等于0的整数。
  143. 根据权利要求142所述的基站,其特征在于,所述发送模块,还用于在子帧n-k发送所述下行控制信令,所述k为大于等于0的整数。
  144. 根据权利要求143所述的基站,其特征在于,所述k等于1。
  145. 根据权利要求128所述的基站,其特征在于,所述确定模块,具体用于按照预定义的规则确定子帧n所述控制信道的时频资源;所述子帧n承载同步信号和/或系统信息。
  146. 根据权利要求128所述的基站,其特征在于,所述控制信道包括控制信道集合一,所述确定模块,具体用于确定控制信道集合一的时频资源;所述发送模块,还用于采用离散传输方式基于所述控制信道集合一的时频资源发送控制信道。
  147. 根据权利要求128所述的基站,其特征在于,所述控制信道包括控制信道集合一和控制信道集合二,所述确定模块,具体用于确定控制信道集合一的时频资源;确定控制信道集合二的时频资源;所述控制信道集合一中的控制信道采用离散传输方式,所述控制信道集合二中的控制信道采用集中传输方式。
  148. 根据权利要求147所述的基站,其特征在于,所述发送模块,还用于在子帧n发送下行控制信息,所述下行控制信息包括子帧n+k控制信道集合一的时频资源信息,所述n为整数,所述k为大于等于1的正整数。
  149. 根据权利要求128所述的基站,其特征在于,所述确定模块,具体用于确定所述控制信道的基本集合的时频资源;所述发送模块,具体用于基于所述基本集合的时频资源发送下行控制信息,所述下行控制信息包括所述控制信道的扩展集合的时频资源信息。
  150. 根据权利要求149所述的基站,其特征在于,所述发送模块,还用于发送系统信息,所述系统信息包括所述控制信道的基本集合的时频资源信息。
  151. 根据权利要求150所述的基站,其特征在于,所述系统信息包括所述控制信道的基本集合的时频资源信息具体为:所述系统信息包括所述控制信道的基本集合的时频资源占用的符号个数信息;或,所述系统信息包括所述控制信道的基本集合的时频资源占用的物理资源块的个数信息;或,所述系统信息包括所述控制信道的基本集合的时频资源对应的控制信道单元CCE个数信息。
  152. 根据权利要求149所述的基站,其特征在于,所述确定模块,具体用于按照预设 的规则确定所述控制信道的基本集合的时频资源。
  153. 根据权利要求151所述的基站,其特征在于,所述预设的规则为所述控制信道的基本集合的时频资源占用1个符号。
  154. 根据权利要求149所述的基站,其特征在于,所述发送模块,具体用于在子帧n基于所述基本集合的时频资源发送下行控制信息,所述下行控制信息包括子帧n+k所述控制信道的扩展集合的时频资源信息;所述n为整数,所述k为大于等于0的正整数。
  155. 根据权利要求154所述的基站,其特征在于,所述k的值等于1。
  156. 根据权利要求149至155任意一项所述的基站,其特征在于,所述下行控制信息包括指示是否存在所述控制信道的扩展集合的信息;或,所述下行控制信息包括指示所述控制信道的扩展集合对应的传输方式的信息。
  157. 根据权利要求149至156任意一项所述的基站,其特征在于,所述基本集合存在于所有包括用于下行传输符号的子帧中。
  158. 根据权利要求149至157任意一项所述的基站,其特征在于,所述扩展集合不存在于承载同步信号和/或系统信息的子帧中。
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