WO2017132861A1 - 一种信号的发送方法及基站、用户设备 - Google Patents

一种信号的发送方法及基站、用户设备 Download PDF

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Publication number
WO2017132861A1
WO2017132861A1 PCT/CN2016/073301 CN2016073301W WO2017132861A1 WO 2017132861 A1 WO2017132861 A1 WO 2017132861A1 CN 2016073301 W CN2016073301 W CN 2016073301W WO 2017132861 A1 WO2017132861 A1 WO 2017132861A1
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Prior art keywords
symbol
user equipment
reference signal
data
transmission time
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PCT/CN2016/073301
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English (en)
French (fr)
Inventor
孙迎花
张兴炜
黎超
刘哲
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华为技术有限公司
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.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2016/073301 priority Critical patent/WO2017132861A1/zh
Priority to CN201680079701.6A priority patent/CN108476193B/zh
Publication of WO2017132861A1 publication Critical patent/WO2017132861A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method for transmitting a signal, a base station, and a user equipment.
  • the frame structure is divided into frequency division duplex (English: Frequency Division Dual, FDD for short) frame structure and time division duplex (English: Time Division Duplexing, TDD for short).
  • Frame structure For the two frame structures, the basic unit is that one 1ms subframe includes two slots, each of which takes 0.5ms.
  • a radio frame takes 10ms.
  • the minimum time unit used for transmitting data during transmission is a 1 ms subframe. That is, during transmission, a certain user equipment (English: User Equipment, UE for short) needs to transmit and receive data in a time unit of 1 ms and will The data generated after mapping on the 1ms subframe is transmitted.
  • UE User Equipment
  • an uplink transmission schedules uplink data from the base station to transmit data to the base station in the downlink to provide corresponding feedback, and the required Round Trip Time (RTT) is not less than 8 ms.
  • the total delay of end-to-end transmission between two user equipments is composed of multiple parts.
  • the transmission time interval (English: Transmission Time Interval, TTI for short) is used, and the TTI is the delay between each UE and the base station.
  • TTI Transmission Time Interval
  • the length of the TTI is further shortened at the physical layer, and a short transmission time interval (English: Short TTI) technology is introduced to implement a shorter physical layer data transmission delay.
  • data of multiple UEs may be transmitted.
  • a symbol of the reference signal is included in the subframe, so that the receiving base station demodulates the data of the received UE according to the reference signal in the symbol of the reference signal.
  • the symbol of the reference signal includes a Demodulation Reference Signal (DMRS) symbol and a Sounding Reference Signal (SRS) symbol.
  • DMRS Demodulation Reference Signal
  • SRS Sounding Reference Signal
  • the abscissa represents time t (ms)
  • the ordinate represents frequency f (Hz)
  • the abscissa of each grid represents a symbol length
  • the ordinate of each grid represents a subcarrier
  • a physical resource block (English) :Physical Resource Block (abbreviation: PRB) includes 12 subcarriers
  • the numbers "1, 2, ... 9" represent different TTIs
  • different TTIs schedule different UEs
  • R 1 , R 2 ... R 9 represent reference signals of different TTIs .
  • the embodiment of the invention provides a method for transmitting a signal, a base station and a user equipment, so as to save the overhead of the base station transmitting the reference signal.
  • a method for transmitting a signal in which a plurality of first user equipments are configured with resources and patterns required for transmitting reference signals and data, wherein the pattern indicates a symbol of the reference signal And a time domain position relationship of the symbol of the data in the subframe, wherein the time domain location relationship satisfies the premise 1 and the premise 2;
  • the first premise is that the time domain resources required by the reference signal of each first user equipment are included in the symbols of the plurality of reference signals; the premise 2 is at least one of the following conditions: each of the first user equipments a reference signal is set in a symbol of a reference signal preceding a symbol of data of each first user equipment, and/or a symbol of a reference signal following a symbol of data of each first user equipment; The information of the resources required by the user equipment to transmit the reference signal and the data and the pattern are sent to the plurality of first user equipments.
  • the overhead of transmitting the reference signal is effectively saved, which satisfies the requirement of resource design; and some or all user equipments may include reference signals in the symbols of multiple reference signals to demodulate the user equipment. Performance has been further improved.
  • one subframe includes N a symbol, the N being a positive integer, the N symbols including a symbol of the plurality of data and a symbol of the plurality of reference signals, each time required by the first user equipment to transmit the reference signal and/or data
  • the domain resource corresponds to a short transmission time interval, and the short transmission time interval is less than or equal to 0.5 ms.
  • the symbol of the reference signal preceding the symbol of the data of each first user equipment includes: The symbol of the reference signal adjacent to the symbol of the first data in the short transmission time interval of a user equipment, and/or the symbol of all reference signals before the short transmission time interval of the first user equipment.
  • the symbol of the reference signal after the symbol of the data of each first user equipment includes: a symbol of a reference signal after a short transmission time interval of a user equipment and adjacent to a symbol of a last one of the short transmission time intervals of the first user equipment, and/or a short transmission of the first user equipment The symbol of all reference signals after the time interval.
  • the premise 2 specifically includes: setting a reference signal of the first type of user equipment of the plurality of first user equipments before the symbol of the data of the first type of user equipment a symbol of a reference signal, or a symbol of a reference signal after a short transmission time interval of the first type of user equipment and adjacent to a short transmission time interval of the first type of user equipment; and the plurality of A plurality of reference signals of the second type of user equipment in a user equipment are set in a symbol of a reference signal preceding a symbol of data of the second type of user equipment, and a symbol of data of the second type of user equipment and In the symbol of the reference signal adjacent to the symbol of the data of the second type of user equipment.
  • part of the UE may include its reference signal in the symbols of multiple reference signals in one subframe, so that the demodulation performance of the partial UE is further improved.
  • the short transmission time intervals corresponding to the multiple first user equipments are equal or unequal, and the symbols of the reference signals are set before the symbols of the data of the multiple first user equipments. / or after the symbol of the data.
  • a method for transmitting a signal comprising: receiving resources and patterns required for transmitting reference signals and data configured for a plurality of first user equipments in one subframe, wherein the pattern And indicating a time domain positional relationship between the symbol of the reference signal and the symbol of the data in a subframe, where the time domain location relationship satisfies the premise 1 and the premise 2; the premise 1 is a reference of each first user equipment.
  • the time domain resources required for the signal are included in the symbols of the plurality of reference signals; the premise 2 is at least one of the following conditions: the reference signal of each first user equipment sets the symbol of the data of each first user equipment In the symbol of the previous reference signal, and/or the symbol of the reference signal following the symbol of the data of each first user equipment; the reference signal and data are transmitted on the resource in accordance with the pattern.
  • the demodulation performance of the user equipment is further improved.
  • the method further includes: if a symbol of a reference signal includes a reference signal of the multiple first user equipment, and the bandwidth of the multiple first user equipment Different, the plurality of first user equipments share a frequency band on a part of the physical resource blocks, and the plurality of physical resource blocks in which the first user equipment shares the frequency band with the other first user equipments are parsed by using a code division multiplexing technology.
  • a base station having a function of implementing a behavior of a base station in the above method.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the base station includes: a configuration unit, configured to configure, in a subframe, a resource and a pattern required for transmitting a reference signal and data for a plurality of first user equipment, where the pattern indicates Determining a time domain positional relationship between a symbol of the reference signal and a symbol of the data in the subframe, the time domain positional relationship satisfies the premise 1 and the premise 2; the premise 1 is a reference signal of each first user equipment The required time domain resource is included in the symbols of the plurality of reference signals; the premise 2 is at least one of the following conditions: the reference signal of each first user equipment is set before the symbol of the data of each first user equipment.
  • a transmitting unit a resource required for transmitting the reference signal and data by the plurality of first user equipments The information and the pattern are sent to the plurality of first user devices.
  • the base station includes: a processor and a transmitter; and the processor is configured to configure, in a subframe, a resource and a pattern required for transmitting the reference signal and the data for the multiple first user equipments, where The pattern indicates a time domain positional relationship between a symbol of the reference signal and a symbol of the data in a subframe, where the time domain position relationship satisfies the premise 1 and the premise 2;
  • the time domain resource required for the reference signal of a user equipment is included in the symbols of the plurality of reference signals;
  • the premise 2 is at least one of the following conditions: a reference signal of each first user equipment is set at each first user The symbol of the reference signal preceding the symbol of the data of the device, and/or the symbol of the reference signal following the symbol of the data of each first user device; said transmitter for transmitting said reference to said plurality of first user equipment
  • Information of the resources required for the signals and data and the pattern are sent to the plurality of first user devices.
  • a user equipment having a function of implementing user equipment behavior in the above method.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the user equipment includes: a receiving unit, configured to receive resources and patterns required for transmitting reference signals and data configured for a plurality of first user equipments in one subframe, where The pattern indicates a time domain positional relationship between a symbol of the reference signal and a symbol of the data in a subframe, the time domain positional relationship satisfies the premise 1 and the premise 2; the premise 1 is, for each first user equipment The time domain resources required for the reference signal are included in the symbols of the plurality of reference signals; the premise 2 is at least one of the following conditions: the reference signal of each first user equipment is set in the data of each first user equipment a symbol of a reference signal preceding the symbol, and/or a symbol of a reference signal following a symbol of data of each first user equipment; a transmitting unit configured to transmit the reference signal and the resource on the resource according to the pattern data.
  • a receiving unit configured to receive resources and patterns required for transmitting reference signals and data configured for a plurality of first user equipments in one subframe, where The
  • the user equipment includes: a receiver and a transmitter
  • the receiver is configured to receive a resource and a pattern required by a base station to transmit a reference signal and data configured for a plurality of first user equipments in one subframe, where the pattern indicates a symbol of the reference signal and the The time domain location relationship of the symbol of the data in the subframe, the time domain location relationship satisfies the premise 1 and the premise 2;
  • the premise 1 is that the time domain resources required for the reference signal of each first user equipment are included in the In the symbol of the reference signal;
  • the premise 2 is at least one of the following conditions: the reference signal of each first user equipment is set in a reference letter before the symbol of the data of each first user equipment In the symbol of the number, and/or the symbol of the reference signal following the symbol of the data of each first user equipment;
  • the transmitter is operative to transmit the reference signal and data on the resource in accordance with the pattern.
  • FIG. 1 is a schematic diagram of an uplink reference signal design in the prior art
  • FIG. 2 is a schematic flowchart of a method for transmitting a signal according to an embodiment of the present invention
  • Figure 3a is a first exemplary diagram of a reference signal located before a symbol of data and a symbol of an adjacent reference signal;
  • Figure 3b is a second exemplary diagram of the reference signal before the symbol of the data and the symbol of the adjacent reference signal;
  • 4a is a first exemplary diagram of symbols of all reference signals before the reference signal is located in the symbol of the data;
  • Figure 4b is a first exemplary diagram of the symbols of all reference signals before the reference signal is located in the symbol of the data;
  • Figure 5a is a first exemplary diagram of a reference signal located in a symbol of each reference signal
  • Figure 5b is a second exemplary diagram of the reference signal located in the symbol of each reference signal
  • Figure 6a is a first exemplary diagram of the position of a symbol of a reference signal when the short transmission time interval is one symbol;
  • 6b is a second exemplary diagram of the position of a symbol of a reference signal when the short transmission time interval is one symbol;
  • 7a is a third exemplary diagram of the position of a symbol of a reference signal when the short transmission time interval is one symbol;
  • Figure 7b is a fourth exemplary diagram of the position of the symbol of the reference signal when the short transmission time interval is one symbol;
  • FIG. 8 is a schematic flowchart diagram of another method for sending a signal according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram showing the division of a symbol of a reference signal of a user equipment of different bandwidths
  • FIG. 10 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of another user equipment according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a method for sending a signal according to an embodiment of the present invention, where the method includes the following steps:
  • S101 Configure resources and patterns required for transmitting reference signals and data for a plurality of first user equipments in one subframe.
  • the first user equipment sends the reference signal or the data to the base station, and needs to send the signal or the data according to the time domain resource and/or the frequency domain resource in the subframe configured by the base station.
  • the time on the subframe is mainly considered.
  • the configuration of domain resources does not limit the configuration of frequency domain resources. Therefore, here, the resource refers to a time domain resource required for transmitting the reference signal and the data, and the pattern is used to indicate the symbol of the reference signal and the time domain positional relationship of the symbol of the data in the subframe.
  • One subframe includes N symbols, N is a positive integer, and the N symbols include symbols of a plurality of data and symbols of a plurality of reference signals, since in the embodiment of the present invention, a short transmission time interval technique is introduced, each of which The time domain resource required for a user equipment to transmit the reference signal and/or the data corresponds to a short transmission time interval, and the short transmission time interval is less than or equal to 0.5 ms. Therefore, one subframe may include multiple first user equipment transmissions. Reference resources and data required for the data. It should be noted that the short transmission time intervals corresponding to each first user equipment may be equal or unequal, and the symbols of the reference signals are set before the symbols of the data of each first user equipment and/or after the symbols of the data.
  • the correspondence between the reference signal and the time domain positional relationship of the data symbol in the subframe must satisfy two preconditions, namely, the premise one and the premise two, and the premise one is that each first user equipment
  • the time domain resources required for the reference signal are included in the symbols of the plurality of reference signals, that is, the symbols of one reference signal include reference signals of a plurality of first user equipments, and the second condition is at least one of the following conditions: each first user
  • the reference signal of the device is set in the symbol of the reference signal preceding the symbol of the data of each first user device, and/or in the symbol of the reference signal following the symbol of the data of each first user device.
  • the overhead of the reference signal; and some or all of the first user equipment may include its reference signal in the symbols of the plurality of reference signals, such that the demodulation performance of the first user equipment is further improved.
  • the symbol of the reference signal before the symbol of the data of each first user equipment includes: a reference signal adjacent to the symbol of the first data in the short transmission time interval of the first user equipment In the symbol, and/or the symbol of all reference signals before the short transmission time interval of the first user equipment.
  • the symbol of the reference signal after the symbol of the data of each first user equipment includes: the last data in the short transmission time interval of the first user equipment and the short transmission time interval of the first user equipment The symbol is adjacent to the symbol of the reference signal, and/or the symbol of all reference signals after the short transmission time interval of the first user equipment.
  • the second premise specifically includes:
  • some UEs may include their reference signals in the symbols of multiple reference signals, so that the demodulation performance of the UE is further improved.
  • S102 Send information about the resources required by the multiple first user equipments to transmit reference signals and data, and the pattern to the plurality of first user equipments.
  • the base station sends the resources and patterns required for the first user equipment to transmit the reference signal and the data to the plurality of first user equipments by using the bit field or the high layer signaling of the downlink control information.
  • the downlink control information includes downlink control information for scheduling a Physical Uplink Shared Channel (PUSCH) or a Physical Downlink Shared Channel (PDSCH).
  • PUSCH Physical Uplink Shared Channel
  • PDSCH Physical Downlink Shared Channel
  • the base station may be configured to indicate the resources and patterns corresponding to the entire subframe to the plurality of first user equipments configured, or may send the time domain resources and patterns configured to the first user equipment to the first User equipment.
  • a symbol of a reference signal configured for a plurality of user equipments in one subframe and a time domain positional relationship of a symbol of the data in the subframe satisfy the premise 1 and the premise 2;
  • the first premise is that the resources required for the reference signal of each user equipment are included in the symbols of the plurality of reference signals, and the second condition is at least one of the following conditions: setting multiple reference signals of each user equipment in each The symbol of the reference signal before the symbol of the data corresponding to the user equipment, and/or the symbol of the reference signal after the symbol of the data of each user equipment, thereby effectively saving the overhead of transmitting the reference signal, satisfying the resource design Demand; and some or all of the user equipment may include its reference signal in the symbols of the plurality of reference signals, so that the demodulation performance of the user equipment is further improved.
  • 3a and 3b are a first exemplary schematic diagram and a second exemplary diagram, respectively, of a reference signal located before a symbol of data and a symbol of an adjacent reference signal.
  • the abscissa represents time t (ms) and the ordinate represents frequency f (Hz)
  • the abscissa of each grid represents a symbol length
  • the ordinate of each grid represents a subcarrier.
  • Each row is a schematic diagram of a subframe.
  • the numbers "1, 2, 3, 4" in the figure represent different short transmission time intervals, that is, short TTI: TTI1, TTI2, TTI3, TTI4, and different TTI schedulings are different.
  • R 4 represent reference signals of different TTIs.
  • the length of the TTI in one subframe in FIG. 3a is 3, 4, 4, and 3 symbols, respectively, wherein the first symbol of each TTI sends a reference signal, and the following symbols are used by the scheduled UE to send data, that is, data. symbol.
  • the length of the TTI in one subframe in Fig. 3b is 4, 4, 4, and 2 symbols, respectively.
  • a reference signal of the first user equipment is set in a symbol of all reference signals preceding the symbol of the data of the first user equipment, and a short transmission time interval after the symbol of the data of the first user equipment and the first user equipment The symbol of the last data in the symbol of the adjacent reference signal.
  • the reference signal R1 of the UE1 is transmitted on the 0th symbol of the TTI1, and the reference signal R1 of the UE1 is also transmitted at the position of the symbol of the reference signal on the TTI2 adjacent to the TTI1, The remaining symbols on TTI1, UE1 is used to transmit data as a symbol of the data.
  • demodulating the data of UE1 can use the reference signal at two positions: the transmitted reference signal R1 on symbol 0 before the symbol of the data of TTI1 and the position of the reference signal on the adjacent TTI2 after the symbol of the data Reference signal R1. And for the UE2 scheduled on the TTI2, the location of the reference signal on the TTI1 before the symbol of the data of the UE2 and the location of the reference signal on the TTI2 and the symbol of the data of the UE2 and the reference signal on the adjacent TTI3 The reference signal R2 of UE2 is transmitted in position.
  • each of the scheduled UEs transmits multiple reference signals, so that the performance of the channel estimation is greatly improved, and the accuracy of the demodulation is further improved.
  • the overhead of the reference signal there are 4 symbols in each subframe for transmitting the reference signal, which reduces the overhead.
  • FIG. 4a and 4b are respectively a first exemplary schematic diagram and a second exemplary schematic diagram of the reference signals located in the symbols of all reference signals preceding the symbols of the data.
  • the embodiment depicted in Figures 4a and 4b differs in that the reference signal is not transmitted at a position after the symbol of the data.
  • the reference signal for each UE is transmitted only at the location of all reference signals preceding the symbols of the corresponding TTI data.
  • the length of the TTI in one subframe in FIG. 4a is 3, 4, 4, and 3 symbols, respectively, wherein the first symbol of each TTI sends a reference signal, and the following symbols are used by the scheduled UE to transmit data.
  • the reference signal of the first user equipment is set in the symbol of all reference signals preceding the symbol of the data of the first user equipment.
  • UE1 transmits the reference only at the position of the reference signal on TTI1 before the symbol of its corresponding data.
  • Test signal R1 The UE2 scheduled by TTI2 has a reference signal corresponding to TTI2 and TTI1 respectively before the symbol of the data, so UE2 can transmit R2 at the reference signal position of TTI1 and the reference signal position of TTI2.
  • UE3 can transmit R3 at the positions of the reference signals of TTI1, TTI2, and TTI3, respectively
  • UE4 can transmit R4 at the positions of the reference signals of TTI1, TTI2, TTI3, and TTI, respectively.
  • the demodulation performance of the data of UE4 is the best, but the data demodulation for UE1 is relatively unchanged with respect to other UEs since the reference signal is transmitted only at one location.
  • the reference signals are transmitted in advance of the data, it is relatively simple to implement.
  • FIG. 5a and 5b are respectively a first exemplary schematic diagram and a second exemplary schematic diagram in which reference signals are located in the symbols of each reference signal.
  • the embodiment shown in Figures 5a and 5b differs in that the reference signal of each UE is transmitted at the location of each TTI reference signal.
  • R1, R2, R3, R4 are transmitted at the location of the reference signal for each TTI.
  • the length of the TTI in one subframe in FIG. 5a is 3, 4, 4, and 3 symbols, respectively, wherein the first symbol of each TTI sends a reference signal, and the following symbols are used by the scheduled UE to transmit data.
  • UE1, UE2, and UE3 are transmitted at each reference signal position before the symbol of the corresponding data and after the symbol of the data, and each reference signal is transmitted at 4 positions, and UE4, R4 is to be transmitted at each reference signal position before the symbol of the corresponding data.
  • the demodulation performance can be further improved, and the overhead of the reference signal is also controlled.
  • each short TTI has a length of 1 symbol.
  • one symbol represents a short TTI.
  • the row in Fig. 6a and Fig. 6b represents a sub-frame, in which the abscissa represents time t (ms), the ordinate represents frequency f (Hz), the abscissa of each grid represents a symbol length, and the ordinate of each grid It represents a subcarrier number "2, 3 ].
  • R 10 represents a different UE scheduling different short TTI: UE1, UE2, UE3 ?? UE10, R 1, R 2 ...
  • R 10 represents a different TTI Reference signal.
  • the positions of the reference signals in one subframe are respectively on the 1, 4, 8, and 11 short TTIs (symbols), and the remaining short TTIs respectively transmit data of different UEs.
  • the position of the reference signal in one sub-frame in Fig. 6b is 0, 4, 7, and 11 short TTIs (symbols), respectively.
  • the reference signal of the first user equipment is set in the symbol of the reference signal preceding the symbol of the data of the first user equipment, or after the symbol of the data of the first user equipment and adjacent to the symbol of the data of the first user equipment The reference signal is in the symbol.
  • UE1, UE2, UE3 share the reference signal on symbol 1, that is, transmit R1, R2, R3 on symbol 1, UE4 and UE5 share the reference signal on symbol 4, that is, send R4, R5 on symbol 4; UE6, UE7, UE8 share the reference signal on symbol 8, that is, transmit R6, R7, R8 on symbol 8, UE9, UE10 shares the reference signal on symbol 11, that is, transmits R9, R10 on symbol 11.
  • UE1, UE2, UE3 share the reference signal on symbol 0, that is, send R1, R2, R3 on symbol 0;
  • UE4 shares the reference signal on symbol 4 with UE5, that is, transmits R4, R5 on symbol 4;
  • UE6, UE7, UE8 share the reference signal on symbol 7, that is, transmit R6, R7, R8 on symbol 7,
  • UE9, UE10 shares the reference signal on symbol 11, that is, transmits R9, R10 on symbol 11.
  • FIG. 7a and 7b are respectively a third exemplary diagram and a fourth example diagram of the position of the symbol of the reference signal when the short transmission time interval is one symbol.
  • the difference in this embodiment is that the UEs on some short TTIs can not only send their own reference signals in the previous RS positions, but also simultaneously send them on the adjacent RSs. Your own reference signal to improve demodulation performance.
  • Figure 7a/7b one symbol represents a short TTI.
  • the plurality of first user equipments are set in the symbols of the reference signals preceding the symbols of the data of the second type of user equipment, and the symbols of the data of the second type of user equipment are followed by the The symbol of the data of the second type of user equipment is adjacent to the symbol of the reference signal.
  • UE1, UE2, and UE3 share the reference signal on symbol 1, that is, transmit R1, R2, R3 on symbol 1, UE3, UE4 shares the reference signal on symbol 4 with UE5, that is, transmits R3 on symbol 4.
  • UE3 and UE8 respectively transmit their own reference signals at the positions of two reference signals, and the demodulation performance of UE3 and UE8 is improved compared to FIG. 6a.
  • UE1, UE2, UE3 share the reference signal on symbol 0, that is, transmit R1, R2, R3 on symbol 0; UE3, UE4 shares the reference signal on symbol 4 with UE5, that is, sends R3 on symbol 4, R4, R5; UE6, UE7, UE8 share the reference signal on symbol 7, that is, send R6, R7, R8 on symbol 7, UE8, UE9, UE10 share the reference signal on symbol 11, that is, send R8 on symbol 11, R9, R10.
  • UE3 and UE8 respectively transmit their own reference signals at the positions of the two reference signals, and the demodulation performance of UE3 and UE8 is improved compared to FIG. 7b.
  • FIG. 8 is a schematic flowchart diagram of another method for sending a signal according to an embodiment of the present invention, where the method includes the following steps:
  • S201 Receive resources and patterns required for transmitting reference signals and data configured for a plurality of first user equipments in one subframe.
  • the first user equipment may be a time domain resource and a pattern that is sent by the receiving base station to the first user equipment, or may be a resource and a pattern indication corresponding to the entire subframe sent by the receiving base station to the multiple first user equipment, and then Obtain the time domain resources and patterns of the first user equipment.
  • the resources required to transmit the reference signal and the data refer to time domain resources
  • the pattern is used to indicate the symbol of the reference signal and the time domain positional relationship of the symbols of the data in the subframe.
  • One subframe includes N symbols, N is a positive integer, and the N symbols include symbols of a plurality of data and symbols of a plurality of reference signals, since in the embodiment of the present invention, a short transmission time interval technique is introduced, each of which The time domain resource required for a user equipment to transmit the reference signal and/or the data corresponds to a short transmission time interval, and the short transmission time interval is less than or equal to 0.5 ms. Therefore, one subframe may include multiple first user equipment transmissions. Time domain resources required for reference signals and data. It should be noted that the short transmission time intervals corresponding to each first user equipment may be equal or unequal, and the symbols of the reference signals are set before the symbols of the data of the plurality of first user equipments and/or the symbols of the data. after that.
  • the correspondence between the reference signal and the time domain positional relationship of the data symbol in the subframe must satisfy two preconditions, namely, the premise one and the premise two, and the premise one is that each first user equipment
  • the time domain resources required for the reference signal are included in the symbols of the plurality of reference signals, that is, the symbols of one reference signal include reference signals of a plurality of first user equipments, and the second condition is at least one of the following conditions: each first user
  • the reference signal of the device is set in the symbol of the reference signal preceding the symbol of the data of each first user device, and/or in the symbol of the reference signal following the symbol of the data of each first user device.
  • a subframe needs only 4 symbols for transmitting the reference signal, and the resources required for transmitting the reference signal to the plurality of first user equipments can be satisfied, thereby effectively saving the overhead of transmitting the reference signal by the base station;
  • Some or all of the first user equipment may include its reference signal in the symbols of the plurality of reference signals, so that the demodulation performance of the first user equipment is further improved.
  • the symbol of the reference signal before the symbol of the data of each first user equipment includes: a reference signal adjacent to the symbol of the first data in the short transmission time interval of the first user equipment In the symbol, and/or the symbol of all reference signals before the short transmission time interval of the first user equipment.
  • the symbol of the reference signal after the symbol of the data of each first user equipment includes: the last data in the short transmission time interval of the first user equipment and the short transmission time interval of the first user equipment The symbol is adjacent to the symbol of the reference signal, and/or the symbol of all reference signals after the short transmission time interval of the first user equipment.
  • the first user equipment transmits data and a reference signal to the base station on the corresponding time domain resource according to the pattern of the data and the pattern of the reference signal, and the base station obtains the first user equipment in the symbol of the reference signal including each first user equipment. And referring to the signal, and then parsing the received data of the first user equipment according to the reference signal.
  • the frequency domain bandwidths of different TTI lengths may not be the same.
  • the method further includes: if a symbol of a reference signal includes reference signals of multiple first user equipments, and the bandwidths of the multiple first user equipments are different, the multiple first users
  • the device shares a frequency band on a part of the physical resource block, and uses a code division multiplexing technique to parse a part of the physical resource block of the shared frequency band for a plurality of physical resource blocks in which the first user equipment shares the frequency band with the other first user equipment.
  • a reference signal of the one user equipment and the other first user equipment is if a symbol of a reference signal includes reference signals of multiple first user equipments, and the bandwidths of the multiple first user equipments are different, the multiple first users
  • the device shares a frequency band on a part of the physical resource block, and uses a code division multiplexing technique to parse a part of the physical resource block of the shared frequency band for a plurality of physical resource blocks in which the first user equipment shares the frequency band with the other first user equipment.
  • the reference signals of the user equipments of different bandwidths as shown in FIG. 9 share a symbolic division diagram. If the bandwidths of UE1, UE2, and UE3 are different, the bandwidths of 6*PRB, 12*PRB, and 18*PRB are respectively. Then R1 occupies the first 6 PRBs, R2 occupies the first 12 PRBs, and shares the frequency band with R1 on the first 6 PRBs, that is, uses code division multiplexing to distinguish R1 and R2 on the first 6 PRBs, and R3 occupies the first 18 PRBs.
  • a symbol of a reference signal and a symbol of a data symbol configured by a base station in a subframe in a subframe satisfy a precondition 1 and a premise 2 in a time domain position relationship in a subframe.
  • the premise is that the time domain resources required for the reference signal of each user equipment are included in the symbols of the plurality of reference signals, and the second condition is at least one of the following conditions: setting multiple reference signals of each user equipment In the symbol of the reference signal before the symbol of the data of each user equipment, and/or the symbol of the reference signal after the symbol of the data of each user equipment, the overhead of transmitting the reference signal by the user equipment is effectively saved, and the satisfaction is satisfied.
  • the requirements of resource design and enable some or all user equipments to include their reference signals in the symbols of multiple reference signals, so that the demodulation performance of the user equipment is obtained. Further improvement.
  • FIG. 10 is a schematic structural diagram of a base station according to an embodiment of the present disclosure, where the base station 1000 includes:
  • the configuration unit 11 is configured to configure resources and patterns required for transmitting the reference signal and the data for the plurality of first user equipments in one subframe.
  • the first user equipment sends the reference signal or the data to the base station, and needs to send the signal or the data according to the time domain resource and/or the frequency domain resource in the subframe configured by the base station.
  • the time on the subframe is mainly considered.
  • the configuration of domain resources does not limit the configuration of frequency domain resources. Therefore, here, the resource refers to a time domain resource required for transmitting the reference signal and the data, and the pattern is used to indicate the symbol of the reference signal and the time domain positional relationship of the symbol of the data in the subframe.
  • One subframe includes N symbols, N is a positive integer, and the N symbols include symbols of a plurality of data and symbols of a plurality of reference signals, since in the embodiment of the present invention, a short transmission time interval technique is introduced, each of which The time domain resource required for a user equipment to transmit the reference signal and/or the data corresponds to a short transmission time interval, and the short transmission time interval is less than or equal to 0.5 ms. Therefore, one subframe may include multiple first user equipment transmissions. Reference resources and data required for the data. It should be noted that the short transmission time intervals corresponding to each first user equipment may be equal or unequal, and the symbols of the reference signals are set before the symbols of the data of each first user equipment and/or after the symbols of the data.
  • the correspondence between the reference signal and the time domain positional relationship of the data symbol in the subframe must satisfy two preconditions, namely, the premise one and the premise two, and the premise one is that each first user equipment
  • the time domain resources required for the reference signal are included in the symbols of the plurality of reference signals, that is, the symbols of one reference signal include reference signals of a plurality of first user equipments, and the second condition is at least one of the following conditions: each first user
  • the reference signal of the device is set in the symbol of the reference signal preceding the symbol of the data of each first user device, and/or in the symbol of the reference signal following the symbol of the data of each first user device.
  • one subframe only needs 4 symbols for transmitting the reference signal, which can be full.
  • the resources required for transmitting the reference signal to the plurality of first user equipments thereby effectively saving the overhead of the base station transmitting the reference signal; and some or all of the first user equipments may include the reference signals in the symbols of the plurality of reference signals, The demodulation performance of the first user equipment is further improved.
  • the symbol of the reference signal before the symbol of the data of each first user equipment includes: a reference signal adjacent to the symbol of the first data in the short transmission time interval of the first user equipment In the symbol, and/or the symbol of all reference signals before the short transmission time interval of the first user equipment.
  • the symbol of the reference signal after the symbol of the data of each first user equipment includes: the last data in the short transmission time interval of the first user equipment and the short transmission time interval of the first user equipment The symbol is adjacent to the symbol of the reference signal, and/or the symbol of all reference signals after the short transmission time interval of the first user equipment.
  • the second premise specifically includes:
  • some UEs may include their reference signals in the symbols of multiple reference signals, so that the demodulation performance of the UE is further improved.
  • the sending unit 12 is configured to send information about the resources required by the plurality of first user equipments to transmit the reference signal and the data, and the pattern to the plurality of first user equipments.
  • the base station sends the resources and patterns required for the first user equipment to transmit the reference signal and the data to the plurality of first user equipments by using the bit field or the high layer signaling of the downlink control information.
  • the downlink control information includes downlink control information for scheduling a Physical Uplink Shared Channel (PUSCH) or a Physical Downlink Shared Channel (PDSCH).
  • PUSCH Physical Uplink Shared Channel
  • PDSCH Physical Downlink Shared Channel
  • the base station may be configured to indicate the resources and patterns corresponding to the entire subframe to the plurality of first user equipments configured, or may send the time domain resources and patterns configured to the first user equipment to the first user equipment.
  • a base station a symbol of a reference signal configured for a plurality of user equipments in a subframe, and a time domain positional relationship of a symbol of the data in the subframe satisfy the premise 1 and the premise 2;
  • the resource required for the reference signal of each user equipment is included in the symbols of the plurality of reference signals, and the second condition is at least one of the following conditions: setting multiple reference signals of each user equipment to each user equipment The symbol of the data before the symbol of the reference signal, and / or the symbol of the reference signal after the symbol of the data of each user equipment, thereby effectively saving the overhead of transmitting the reference signal, meeting the needs of resource design;
  • Some or all of the user equipment may include its reference signal in the symbols of the plurality of reference signals, so that the demodulation performance of the user equipment is further improved.
  • FIG. 11 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure, where the user equipment 2000 includes:
  • the receiving unit 21 is configured to receive resources and patterns required for transmitting reference signals and data configured for the plurality of first user equipments in one subframe.
  • the first user equipment may be a time domain resource and a pattern that is sent by the receiving base station to the first user equipment, or may be a resource and a pattern indication corresponding to the entire subframe sent by the receiving base station to the multiple first user equipment, and then Obtain the time domain resources and patterns of the first user equipment.
  • the resources required to transmit the reference signal and the data refer to time domain resources
  • the pattern is used to indicate the symbol of the reference signal and the time domain positional relationship of the symbols of the data in the subframe.
  • One subframe includes N symbols, N is a positive integer, and the N symbols include symbols of a plurality of data and symbols of a plurality of reference signals, since in the embodiment of the present invention, a short transmission time interval technique is introduced, each of which The time domain resource required for a user equipment to transmit the reference signal and/or the data corresponds to a short transmission time interval, and the short transmission time interval is less than or equal to 0.5 ms. Therefore, one subframe may include multiple first user equipment transmissions. Time domain resources required for reference signals and data. It should be noted that the short transmission time intervals corresponding to each first user equipment may be equal or unequal, and the symbols of the reference signals are set before the symbols of the data of the plurality of first user equipments and/or the symbols of the data. after that.
  • the positional relationship needs to satisfy two preconditions, namely, the premise one and the premise two.
  • the premise one is that the time domain resources required for the reference signal of each first user equipment are included in the symbols of the plurality of reference signals, that is, a reference signal.
  • the symbol includes a plurality of reference signals of the first user equipment, and the second condition is at least one of the following conditions: the reference signal of each first user equipment is set in the symbol of the reference signal before the symbol of the data of each first user equipment. And/or the symbol of the reference signal following the symbol of the data of each first user equipment.
  • a subframe needs only 4 symbols for transmitting the reference signal, and the resources required for transmitting the reference signal to the plurality of first user equipments can be satisfied, thereby effectively saving the overhead of transmitting the reference signal by the base station;
  • Some or all of the first user equipment may include its reference signal in the symbols of the plurality of reference signals, so that the demodulation performance of the first user equipment is further improved.
  • the symbol of the reference signal before the symbol of the data of each first user equipment includes: a reference signal adjacent to the symbol of the first data in the short transmission time interval of the first user equipment In the symbol, and/or the symbol of all reference signals before the short transmission time interval of the first user equipment.
  • the symbol of the reference signal after the symbol of the data of each first user equipment includes: the last data in the short transmission time interval of the first user equipment and the short transmission time interval of the first user equipment The symbol is adjacent to the symbol of the reference signal, and/or the symbol of all reference signals after the short transmission time interval of the first user equipment.
  • the sending unit 22 is configured to transmit the reference signal and data on the resource according to the pattern.
  • the first user equipment transmits data and a reference signal to the base station on the corresponding time domain resource according to the pattern of the data and the pattern of the reference signal, and the base station obtains the first user equipment in the symbol of the reference signal including each first user equipment. And referring to the signal, and then parsing the received data of the first user equipment according to the reference signal.
  • the frequency domain bandwidths of different TTI lengths may not be the same.
  • the method further includes: if a symbol of a reference signal includes reference signals of multiple first user equipments, and the bandwidths of the multiple first user equipments are different, the multiple first users
  • the device shares a frequency band on a part of the physical resource block, and uses a code division multiplexing technique to parse a part of the physical resource block of the shared frequency band for a plurality of physical resource blocks in which the first user equipment shares the frequency band with the other first user equipment.
  • a reference signal of the one user equipment and the other first user equipment is if a symbol of a reference signal includes reference signals of multiple first user equipments, and the bandwidths of the multiple first user equipments are different, the multiple first users
  • the device shares a frequency band on a part of the physical resource block, and uses a code division multiplexing technique to parse a part of the physical resource block of the shared frequency band for a plurality of physical resource blocks in which the first user equipment shares the frequency band with the other first user equipment.
  • the reference signals of the user equipments of different bandwidths as shown in FIG. 9 share a symbolic division diagram. If the bandwidths of UE1, UE2, and UE3 are different, the bandwidths of 6*PRB, 12*PRB, and 18*PRB are respectively. Then R1 occupies the first 6 PRBs, R2 occupies the first 12 PRBs, and shares the frequency band with R1 on the first 6 PRBs, that is, uses code division multiplexing to distinguish R1 and R2 on the first 6 PRBs, and R3 occupies the first 18 PRBs.
  • a symbol of a reference signal configured by a base station for a plurality of user equipments in a subframe and a time domain positional relationship of a symbol of the data in the subframe satisfy the premise 1 and the premise 2;
  • the time domain resources required for the reference signal of each user equipment are included in the symbols of the plurality of reference signals
  • the second condition is at least one of the following conditions: setting a plurality of reference signals of each user equipment in each In the symbol of the reference signal before the symbol of the data of the user equipment, and/or the symbol of the reference signal after the symbol of the data of each user equipment, the overhead of transmitting the reference signal by the user equipment is effectively saved, and the resource design is satisfied.
  • the partial or full user equipment can include its reference signal in the symbols of the plurality of reference signals, so that the demodulation performance of the user equipment is further improved.
  • FIG. 12 is a schematic structural diagram of another base station according to an embodiment of the present invention.
  • the base station 3000 includes a processor 31 and a transmitter 32, where:
  • the processor 31 is configured to configure, in a subframe, a resource and a pattern required for transmitting a reference signal and data for a plurality of first user equipment, where the pattern indicates a symbol of the reference signal and a symbol of the data
  • the time domain positional relationship in the subframe, the time domain location relationship satisfies the premise 1 and the premise 2;
  • the first premise is that the time domain resources required by the reference signal of each first user equipment are included in the symbols of the plurality of reference signals;
  • the premise 2 is at least one of the following conditions:
  • the reference signal of each first user equipment is set in the symbol of the data of each first user equipment In the sign of the previous reference signal, and/or in the sign of the reference signal following the sign of the data of each first user equipment;
  • the transmitter 32 is configured to send information about the resources required by the plurality of first user equipments to transmit reference signals and data, and the pattern to the plurality of first user equipments.
  • one subframe includes N symbols, and the N is a positive integer, and the N symbols include symbols of the multiple data and symbols of the multiple reference signals, each first The time domain resource required by the user equipment to transmit the reference signal and/or data corresponds to a short transmission time interval, and the short transmission time interval is less than or equal to 0.5 ms.
  • the symbol of the reference signal before the symbol of the data of each first user equipment includes: a short transmission time interval of the first user equipment is adjacent to a symbol of the first data The symbol of the reference signal, and/or the symbol of all reference signals before the short transmission time interval of the first user equipment.
  • the symbol of the reference signal after the symbol of the data of each first user equipment includes: after the short transmission time interval of the first user equipment and with the first user equipment The symbol of the reference signal adjacent to the last data in the short transmission time interval, and/or the symbol of all reference signals after the short transmission time interval of the first user equipment.
  • the premise 2 specifically includes:
  • the short transmission time intervals corresponding to the multiple first user equipments are equal or unequal, and the symbols of the reference signals are set before the symbols of the data of the plurality of first user equipments. / or after the symbol of the data.
  • a base station a symbol of a reference signal configured for a plurality of user equipments in a subframe, and a time domain positional relationship of a symbol of the data in the subframe satisfy the premise 1 and the premise 2;
  • the resource required for the reference signal of each user equipment is included in the symbols of the plurality of reference signals, and the second condition is at least one of the following conditions: setting multiple reference signals of each user equipment to each user equipment The symbol of the data before the symbol of the reference signal, and / or the symbol of the reference signal after the symbol of the data of each user equipment, thereby effectively saving the overhead of transmitting the reference signal, meeting the needs of resource design;
  • Some or all of the user equipment may include its reference signal in the symbols of the plurality of reference signals, so that the demodulation performance of the user equipment is further improved.
  • FIG. 13 is a schematic structural diagram of another user equipment according to an embodiment of the present invention.
  • the user equipment 4000 includes a receiver 41 and a transmitter 42, where:
  • the first premise is that the time domain resources required by the reference signal of each first user equipment are included in the symbols of the plurality of reference signals; the premise 2 is at least one of the following conditions: each of the first user equipments The reference signal is set in the symbol of the reference signal preceding the symbol of the data of each first user equipment, and/or in the symbol of the reference signal following the symbol of the data of each first user equipment;
  • the transmitter 42 is configured to transmit the reference signal and data on the resource according to the pattern.
  • the user equipment 4000 further includes: a processor 43;
  • the processor 43 is configured to: if a reference signal includes a reference signal of a plurality of first user equipments, and the bandwidths of the multiple first user equipments are different, the multiple first user equipments are in a part of physical resources. Sharing a frequency band on the block, for a plurality of physical resource blocks in which a first user equipment shares a frequency band with other first user equipments, parsing the one user equipment on a part of the physical resource blocks of the shared frequency band by using a code division multiplexing technique Reference signal with other first user equipment.
  • a symbol of a reference signal configured by a base station for a plurality of user equipments in one subframe and a time domain positional relationship of data symbols in a subframe satisfy a precondition 1 And the second premise; the first one is that the time domain resources required for the reference signal of each user equipment are included in the symbols of the plurality of reference signals, and the second condition is at least one of the following conditions: multiple The reference signal is set in the symbol of the reference signal before the symbol of the data of each user equipment, and/or the symbol of the reference signal after the symbol of the data of each user equipment, effectively saving the overhead of transmitting the reference signal by the user equipment
  • the requirements of resource design are met; and some or all user equipments can include their reference signals in the symbols of multiple reference signals, so that the demodulation performance of the user equipment is further improved.
  • Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a computer.
  • the computer readable medium may include a random access memory (RAM), a read-only memory (ROM), and an electrically erasable programmable read-only memory (Electrically Erasable Programmable).
  • EEPROM Electrically Error Read-Only Memory
  • CD-ROM Compact Disc Read-Only Memory
  • Any connection may suitably be a computer readable medium.
  • the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), or wireless technologies such as infrared, radio, and microwave, Then coaxial cable, fiber optic cable, twisted pair Wire, DSL or wireless technologies such as infrared, wireless and microwave are included in the fixing of the associated medium.
  • DSL Digital Subscriber Line
  • a disk and a disc include a compact disc (CD), a laser disc, a compact disc, a digital versatile disc (DVD), a floppy disk, and a Blu-ray disc, wherein the disc is usually magnetically copied, and the disc is The laser is used to optically replicate the data. Combinations of the above should also be included within the scope of the computer readable media.

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Abstract

一种信号的发送方法及基站、用户设备。在一个子帧中为多个用户设备配置的参考信号的符号和数据的符号在子帧中的时域位置关系满足前提一和前提二；前提一为，将每个用户设备的参考信号所需的资源包括在多个参考信号的符号中，前提二为以下条件中的至少一个：将每个用户设备的多个参考信号设置在每个用户设备的数据的符号之前的参考信号的符号中，和/或每个用户设备的数据的符号之后的参考信号的符号中，从而有效地节省了发送参考信号的开销，满足了资源设计的需求；且部分或全部用户设备可在多个参考信号的符号中包含其参考信号，使该用户设备的解调性能得到进一步改善。

Description

一种信号的发送方法及基站、用户设备 技术领域
本发明涉及通信技术领域，尤其涉及一种信号的发送方法及基站、用户设备。
背景技术
在长期演进(英文：Long Term Evolution，简称LTE)协议中，帧结构分为频分双工(英文：Frequency Division Dual，简称FDD)的帧结构和时分双工(英文：Time Division Duplexing，简称TDD)的帧结构。对这两种帧结构，其基本单位是一个1ms子帧中包括2个时隙(slot)，每个时隙占用时间0.5ms。一个无线帧占用10ms时间。传输时发送数据使用的最小时间单位是1ms子帧，即在传输过程中，某个特定用户设备(英文：User Equipment，简称UE)需要收发的数据需要在1ms的时间单位上映射资源并将在1ms子帧上映射好后产生的数据做传输。进一步地，在整个LTE系统的设计中，在考虑UE侧对1ms的最大数据包的接收以及处理时延的限制，某个UE在子帧n上接收到数据后，只能在子帧n+k的位置上才能做相应的发送，其中k≥4。因此一次上行传输从基站调度上行数据到在下行发射数据到基站作出相应的反馈，需要的往返时延(英文：Round Trip Time，简称RTT)不低于8ms。
在TDD系统中，因为上、下行占用了不同的子帧，因此RTT通常会大于8ms，如有的TDD配置下，RTT长达13ms或16ms。这个8ms是单次传输的RTT需要的空口的最小时延。如果考虑一个业务在传输过程中的信令交互过程，如交互M次，一个业务从业务发起到正式开始传输最少是8M(ms)的时延。如M＝10，则需要80ms的时延。这将极大地影响用户的体验和无线网络的性能。
在LTE系统中，两个用户设备之间端到端的传输总时延是由多个部分组成的。其中包括传输时间间隔(英文：Transmission Time Interval，简称：TTI)，TTI为每个数据包在UE与基站之间交换的时延。为了减少系统的时延，在物理层对TTI长度进一步缩短，引入了短传输时间间隔(英文：Short TTI)的技术，实现更短的物理层数据传输时延。
在一个子帧中，可以发送多个UE的数据，对于每个UE，子帧中需包含 参考信号的符号，以便接收基站根据该参考信号的符号中的参考信号解调接收到的UE的数据，该参考信号的符号包括解调参考信号(英文：Demodulation Reference Signal，简称：DMRS)符号和信道探测参考信号(英文：Sounding Reference Signal，简称：SRS)符号。在现有技术中，如图1所示的现有技术中的上行参考信号设计示意图，设计了两个TTI的DMRS符号重叠，即两个TTI共享一个参考信号的符号。图1中，横坐标表示时间t(ms)，纵坐标表示频率f(Hz)，每个格子的横坐标表示一个符号长度，每个格子的纵坐标代表一个子载波，一个物理资源块(英文：Physical Resource Block，简称：PRB)包括12个子载波，数字“1、2、…9”代表不同的TTI，不同的TTI调度不同的UE，R1、R2…R9表示不同TTI的参考信号。然而，一个子帧中有5个符号用来发送参考信号。
可以看出，当前参考信号所需的资源开销不能满足设计要求。
发明内容
本发明实施例提供了一种信号的发送方法及基站、用户设备，以节省基站发送参考信号的开销。
第一方面，提供了一种信号的发送方法，在一个子帧中为多个第一用户设备配置传输参考信号和数据所需的资源和图样，其中，所述图样指示所述参考信号的符号和所述数据的符号在子帧中的时域位置关系，所述时域位置关系满足前提一和前提二；
所述前提一为，每个第一用户设备的参考信号所需的时域资源包括在多个参考信号的符号中；所述前提二为以下条件中的至少一个：每个第一用户设备的参考信号设置在每个第一用户设备的数据的符号之前的参考信号的符号中，和/或每个第一用户设备的数据的符号之后的参考信号的符号中；将所述多个第一用户设备传输参考信号和数据所需的资源的信息和所述图样发送给所述多个第一用户设备。
在该实现方式中，有效地节省了发送参考信号的开销，满足了资源设计的需求；且部分或全部用户设备可在多个参考信号的符号中包含其参考信号，使该用户设备的解调性能得到进一步改善。
结合第一方面，在第一方面的第一种可能的实现方式中，一个子帧包括N 个符号，所述N为正整数，所述N个符号包括所述多个数据的符号和所述多个参考信号的符号，每个第一用户设备传输参考信号和/或数据所需的时域资源对应一个短传输时间间隔，且所述短传输时间间隔小于或等于0.5ms。
结合第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，每个第一用户设备的数据的符号之前的参考信号的符号中，包括：所述第一用户设备的短传输时间间隔中与第一个数据的符号相邻的参考信号的符号中，和/或所述第一用户设备的短传输时间间隔之前的所有参考信号的符号中。
结合第一方面的第一种可能的实现方式，在第一方面的第三种可能的实现方式中，每个第一用户设备的数据的符号之后的参考信号的符号中，包括：所述第一用户设备的短传输时间间隔之后且与所述第一用户设备的短传输时间间隔中的最后一个数据的符号相邻的参考信号的符号中，和/或所述第一用户设备的短传输时间间隔之后的所有参考信号的符号中。
结合第一方面的第一种可能的实现方式或第一方面的第二种可能的实现方式或第一方面的第三种可能的实现方式，在第四种可能的实现方式中，所述短传输时间间隔为一个符号时，所述前提二具体包括：将所述多个第一用户设备中的第一类用户设备的一个参考信号设置在所述第一类用户设备的数据的符号之前的参考信号的符号中，或所述第一类用户设备的短传输时间间隔之后且与所述第一类用户设备的短传输时间间隔相邻的参考信号的符号中；以及将所述多个第一用户设备中的第二类用户设备的多个参考信号设置在所述第二类用户设备的数据的符号之前的参考信号的符号中，以及所述第二类用户设备的数据的符号之后且与所述第二类用户设备的数据的符号相邻的参考信号的符号中。
在该实现方式中，部分UE在一个子帧中可在多个参考信号的符号中包含其参考信号，使该部分UE的解调性能得到进一步改善。
结合第一方面的第一种可能的实现方式或第一方面的第二种可能的实现方式或第一方面的第三种可能的实现方式或第一方面的第四种可能的实现方式，在第五种可能的实现方式中，所述多个第一用户设备对应的短传输时间间隔相等或不相等，所述参考信号的符号设置在所述多个第一用户设备的数据的符号之前和/或数据的符号之后。
第二方面，提供了一种信号的发送方法，所述方法包括：接收在一个子帧中为多个第一用户设备配置的传输参考信号和数据所需的资源和图样，其中，所述图样指示所述参考信号的符号和所述数据的符号在子帧中的时域位置关系，所述时域位置关系满足前提一和前提二；所述前提一为，每个第一用户设备的参考信号所需的时域资源包括在多个参考信号的符号中；所述前提二为以下条件中的至少一个：每个第一用户设备的参考信号设置在每个第一用户设备的数据的符号之前的参考信号的符号中，和/或每个第一用户设备的数据的符号之后的参考信号的符号中；根据所述图样在所述资源上传输所述参考信号和数据。
在该实现方式中，由于部分或全部用户设备在一个子帧中可在多个参考信号的符号中包含其参考信号，使该用户设备的解调性能得到进一步改善。
结合第二方面，在第一种可能的实现方式中，所述方法还包括：若一个参考信号的符号中包括多个第一用户设备的参考信号，且所述多个第一用户设备的带宽不同，所述多个第一用户设备在部分物理资源块上共享频带，对于其中一个第一用户设备与其它第一用户设备共享频带的多个物理资源块，采用码分复用技术解析所述共享频带的部分物理资源块上的所述一个用户设备与其它第一用户设备的参考信号。
第三方面，提供了一种基站，该基站具有实现上述方法中基站行为的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。
一种可能的实现方式中，所述基站包括：配置单元，用于在一个子帧中为多个第一用户设备配置传输参考信号和数据所需的资源和图样，其中，所述图样指示所述参考信号的符号和所述数据的符号在子帧中的时域位置关系，所述时域位置关系满足前提一和前提二；所述前提一为，每个第一用户设备的参考信号所需的时域资源包括在多个参考信号的符号中；所述前提二为以下条件中的至少一个：每个第一用户设备的参考信号设置在每个第一用户设备的数据的符号之前的参考信号的符号中，和/或每个第一用户设备的数据的符号之后的参考信号的符号中；发送单元，用于将所述多个第一用户设备传输参考信号和数据所需的资源的信息和所述图样发送给所述多个第一用户设备。
另一种可能的实现方式中，所述基站包括：处理器和发送器；所述处理器用于在一个子帧中为多个第一用户设备配置传输参考信号和数据所需的资源和图样，其中，所述图样指示所述参考信号的符号和所述数据的符号在子帧中的时域位置关系，所述时域位置关系满足前提一和前提二；所述前提一为，每个第一用户设备的参考信号所需的时域资源包括在多个参考信号的符号中；所述前提二为以下条件中的至少一个：每个第一用户设备的参考信号设置在每个第一用户设备的数据的符号之前的参考信号的符号中，和/或每个第一用户设备的数据的符号之后的参考信号的符号中；所述发送器用于将所述多个第一用户设备传输参考信号和数据所需的资源的信息和所述图样发送给所述多个第一用户设备。
第四方面，提供了一种用户设备，该用户设备具有实现上述方法中用户设备行为的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。
一种可能的实现方式中，所述用户设备包括：接收单元，用于接收在一个子帧中为多个第一用户设备配置的传输参考信号和数据所需的资源和图样，其中，所述图样指示所述参考信号的符号和所述数据的符号在子帧中的时域位置关系，所述时域位置关系满足前提一和前提二；所述前提一为，每个第一用户设备的参考信号所需的时域资源包括在多个参考信号的符号中；所述前提二为以下条件中的至少一个：每个第一用户设备的参考信号设置在每个第一用户设备的数据的符号之前的参考信号的符号中，和/或每个第一用户设备的数据的符号之后的参考信号的符号中；发送单元，用于根据所述图样在所述资源上传输所述参考信号和数据。
另一种可能的实现方式中，所述用户设备包括：接收器和发送器；
所述接收器用于接收基站发送的在一个子帧中为多个第一用户设备配置的传输参考信号和数据所需的资源和图样，其中，所述图样指示所述参考信号的符号和所述数据的符号在子帧中的时域位置关系，所述时域位置关系满足前提一和前提二；所述前提一为，每个第一用户设备的参考信号所需的时域资源包括在多个参考信号的符号中；所述前提二为以下条件中的至少一个：每个第一用户设备的参考信号设置在每个第一用户设备的数据的符号之前的参考信 号的符号中，和/或每个第一用户设备的数据的符号之后的参考信号的符号中；所述发送器用于根据所述图样在所述资源上传输所述参考信号和数据。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为现有技术中的上行参考信号设计示意图；
图2为本发明实施例提供的一种信号的发送方法的流程示意图；
图3a为参考信号位于数据的符号之前和相邻的参考信号的符号中的第一示例示意图；
图3b为参考信号位于数据的符号之前和相邻的参考信号的符号中的第二示例示意图；
图4a为参考信号位于数据的符号之前所有参考信号的符号中的第一示例示意图；
图4b为参考信号位于数据的符号之前所有参考信号的符号中的第一示例示意图；
图5a为参考信号位于每个参考信号的符号中的第一示例示意图；
图5b为参考信号位于每个参考信号的符号中的第二示例示意图；
图6a为当短传输时间间隔为一个符号时参考信号的符号的位置的第一示例示意图；
图6b为当短传输时间间隔为一个符号时参考信号的符号的位置的第二示例示意图；
图7a为当短传输时间间隔为一个符号时参考信号的符号的位置的第三示例示意图；
图7b为当短传输时间间隔为一个符号时参考信号的符号的位置的第四示例示意图；
图8为本发明实施例提供的另一种信号的发送方法的流程示意图；
图9为不同带宽的用户设备的参考信号共享一个符号的区分示意图；
图10为本发明实施例提供的一种基站的结构示意图；
图11为本发明实施例提供的一种用户设备的结构示意图；
图12为本发明实施例提供的另一种基站的结构示意图；
图13为本发明实施例提供的另一种用户设备的结构示意图。
具体实施方式
图2为本发明实施例提供的一种信号的发送方法的流程示意图，该方法包括以下步骤：
S101，在一个子帧中为多个第一用户设备配置传输参考信号和数据所需的资源和图样。
第一用户设备发送参考信号或数据给基站，需按照基站配置的子帧上的时域资源和/或频域资源进行信号或数据的发送，在本实施例中，重点考虑子帧上的时域资源的配置，对频域资源的配置不做限制。因此，在这里，资源是指传输参考信号和数据所需的时域资源，图样用于指示参考信号的符号和数据的符号在子帧中的时域位置关系。
一个子帧包括N个符号，N为正整数，该N个符号包括多个数据的符号和多个参考信号的符号，由于在本发明实施例中，引入了短传输时间间隔技术，每个第一用户设备传输参考信号和/或数据所需的时域资源对应一个短传输时间间隔，且所述短传输时间间隔小于或等于0.5ms，因此，一个子帧可包括多个第一用户设备传输参考信号和数据所需的资源、图样。需要说明的是，每个第一用户设备对应的短传输时间间隔可以相等或不相等，参考信号的符号设置每个第一用户设备的数据的符号之前和/或数据的符号之后。
在设计参考信号的图样时，参考信号的符合和数据的符号在子帧中的时域位置关系需满足两个前提，即前提一和前提二，前提一为，将每个第一用户设备的参考信号所需的时域资源包括在多个参考信号的符号中，即一个参考信号的符号包括多个第一用户设备的参考信号，前提二为以下条件中的至少一个：每个第一用户设备的参考信号设置在每个第一用户设备的数据的符号之前的参考信号的符号中，和/或每个第一用户设备的数据的符号之后的参考信号的符号中。这样，经过计算，一个子帧只需4个符号用于发送参考信号，就可满足给多个第一用户设备传输参考信号所需的资源，从而有效地节省了基站发送 参考信号的开销；且部分或全部第一用户设备可在多个参考信号的符号中包含其参考信号，使该第一用户设备的解调性能得到进一步改善。
在本实施例中，每个第一用户设备的数据的符号之前的参考信号的符号中，包括：所述第一用户设备的短传输时间间隔中与第一个数据的符号相邻的参考信号的符号中，和/或所述第一用户设备的短传输时间间隔之前的所有参考信号的符号中。
每个第一用户设备的数据的符号之后的参考信号的符号中，包括：所述第一用户设备的短传输时间间隔之后且与所述第一用户设备的短传输时间间隔中的最后一个数据的符号相邻的参考信号的符号中，和/或所述第一用户设备的短传输时间间隔之后的所有参考信号的符号中。
进一步地，前提二具体包括：
所述短传输时间间隔为一个符号时，将所述多个第一用户设备中的第一类用户设备的一个参考信号设置在所述第一类用户设备的数据的符号之前的参考信号的符号中，或所述第一类用户设备的短传输时间间隔之后且与所述第一类用户设备的短传输时间间隔相邻的参考信号的符号中；
将所述多个第一用户设备中的第二类用户设备的多个参考信号设置在所述第二类用户设备的数据的符号之前的参考信号的符号中，以及所述第二类用户设备的数据的符号之后且与所述第二类用户设备的数据的符号相邻的参考信号的符号中。
在该实现方式中，部分UE可在多个参考信号的符号中包含其参考信号，使该UE的解调性能得到进一步改善。
S102，将所述多个第一用户设备传输参考信号和数据所需的资源的信息和所述图样发送给所述多个第一用户设备。
本步骤中，具体地，基站通过下行控制信息的比特域或高层信令将多个第一用户设备传输参考信号和数据所需的资源和图样发送给所述多个第一用户设备。该下行控制信息包括用于调度物理上行共享信道(英文：Physical Uplink Shared Channel，简称：PUSCH)或物理下行共享信道(英文：Physical Downlink Shared Channel，简称：PDSCH)的下行控制信息。
基站可以是将整个子帧对应的资源和图样指示给进行配置的多个第一用户设备，也可以是将配置给某个第一用户设备的时域资源和图样发送给该第一 用户设备。
根据本发明实施例提供的一种信号的发送方法，在一个子帧中为多个用户设备配置的参考信号的符号和数据的符号在子帧中的时域位置关系满足前提一和前提二；前提一为，将每个用户设备的参考信号所需的资源包括在多个参考信号的符号中，前提二为以下条件中的至少一个：将每个用户设备的多个参考信号设置在每个用户设备对应的数据的符号之前的参考信号的符号中，和/或每个用户设备的数据的符号之后的参考信号的符号中，从而有效地节省了发送参考信号的开销，满足了资源设计的需求；且部分或全部用户设备可在多个参考信号的符号中包含其参考信号，使该用户设备的解调性能得到进一步改善。
下面通过具体的示例对图2所示实施例的时域资源和图样的配置进行举例说明：
图3a和图3b分别为参考信号位于数据的符号之前和相邻的参考信号的符号中的第一示例示意图和第二示例示意图。如图3a/3b所示，其中图中横坐标表示时间t(ms)，纵坐标表示频率f(Hz)，每个格子的横坐标表示一个符号长度，每个格子的纵坐标代表一个子载波，每一行是一个子帧的示意图，图中的数字“1、2、3、4”代表了不同的短传输时间间隔，即short TTI：TTI1、TTI2、TTI3、TTI4，不同的TTI调度不同的UE，R1、R2…R4表示不同TTI的参考信号。图3a中一个子帧中TTI的长度分别为3、4、4、3个符号，其中每个TTI的第一个符号发参考信号，后面的符号用于被调度的UE发送数据，即为数据的符号。图3b中一个子帧中TTI的长度分别为4、4、4、2个符号。图中的Rn(n＝1,2,3,4)代表不同的UE发送的不同参考信号。即将第一用户设备的参考信号设置在第一用户设备的数据的符号之前的所有参考信号的符号中，和第一用户设备的数据的符号之后且与所述第一用户设备的短传输时间间隔中的最后一个数据的符号相邻的参考信号的符号中。对TTI1上调度的UE1来说，在TTI1的第0个符号上发UE1的参考信号R1，同时还要在与TTI1相邻的TTI2上的参考信号的符号的位置上发送UE1的参考信号R1，TTI1上的其余符号，UE1用来发送数据，作为数据的符号。这样解调UE1的数据就可以用两个位置上的参考信号：TTI1的数据的符号之前的符号0上的发送的参考信 号R1以及数据的符号之后且相邻的TTI2上参考信号的位置上发送的参考信号R1。而对于TTI2上调度的UE2来说，在UE2的数据的符号之前的TTI1上的参考信号的位置以及TTI2上的参考信号的位置以及UE2的数据的符号之后且相邻的TTI3上的参考信号的位置上都发送UE2的参考信号R2。同样对于TTI3上调度的UE3来说，在UE3的数据的符号之前的TTI上的参考信号的位置以及TTI2上的参考信号的位置以及TTI3上的参考信号的位置以及UE3的数据的符号之后且相邻的TTI4上的参考信号的位置上都发送UE3的参考信号R3。同理对于TTI4上调度的UE4，在其数据的符号之前的TTI1、TTI2、TTI3以及TTI4上的参考信号的位置上都发送UE4的参考信号R4。这样每个被调度的UE都发送了多个参考信号，使得信道估计的性能很大程度上得到了提高，解调的精度进一步得到改善。而对于参考信号的开销，每个子帧中有4个符号用来发送参考信号，降低了开销。
图4a和图4b分别为参考信号位于数据的符号之前所有参考信号的符号中的第一示例示意图和第二示例示意图。与图3a和图3b所描述的实施例相比，图4a和图4b所描述的实施例的区别在于参考信号不在数据的符号之后的位置上发送。如图4a/4b所示，每个UE的参考信号只在对应的TTI数据的符号之前的所有参考信号的位置上发送。其中图4a和图4b中一行代表一个子帧，图中横坐标表示时间t(ms)，纵坐标表示频率f(Hz)，每个格子的横坐标表示一个符号长度，每个格子的纵坐标代表一个子载波，数字“1、2、3、4”代表了不同的short TTI：TTI1、TTI2、TTI3、TTI4，不同的TTI调度不同的UE，R1、R2…R4表示不同TTI的参考信号的符号。图4a中一个子帧中TTI的长度分别为3、4、4、3个符号，其中每个TTI的第一个符号发参考信号，后面的符号用于被调度的UE发送数据。图4b中一个子帧中TTI的长度分别为4、4、4、2个符号。图中的Rn(n＝1,2,3,4)代表不同的UE发送的不同参考信号。即将第一用户设备的参考信号设置在第一用户设备的数据的符号之前的所有参考信号的符号中。
从实现上来看，参考信号在数据的符号之前发送要比在数据的符号之后发送要实现简单，因为不需要进行数据缓存的操作。所以对于TTI1调度的UE1来说，UE1仅在其对应数据的符号之前的TTI1上的参考信号的位置发送参 考信号R1。TTI2调度的UE2，其数据的符号之前的参考信号有TTI2与TTI1分别对应的参考信号，所以UE2可以在TTI1的参考信号位置以及TTI2的参考信号位置上发送R2。同样UE3可以分别在TTI1、TTI2以及TTI3的参考信号的位置上发送R3，UE4可以分别在TTI1、TTI2、TTI3以及TTI的参考信号的位置上发送R4。这样对于UE4的数据的解调性能是最好的，但是对于UE1的数据解调相对于其他的UE来说由于只在一个位置上发送参考信号，所以其解调性能相对来说没有改变。但是由于参考信号都是提前于数据发送，所以实现起来会比较简单。
图5a和图5b分别为参考信号位于每个参考信号的符号中的第一示例示意图和第二示例示意图。与前面描述的实施例相比，图5a和图5b所示的实施例的区别在于每个UE的参考信号在每个TTI参考信号的位置上都要发送。如图5a/5b所示，R1、R2、R3、R4在每个TTI的参考信号的位置上都要发送。其中，图5a和图5b中一行代表一个子帧，图中横坐标表示时间t(ms)，纵坐标表示频率f(Hz)，每个格子的横坐标表示一个符号长度，每个格子的纵坐标代表一个子载波，数字“1、2、3、4”代表了不同的short TTI：TTI1、TTI2、TTI3、TTI4，不同的TTI调度不同的UE，R1、R2…R4表示不同TTI的参考信号。图5a中一个子帧中TTI的长度分别为3、4、4、3个符号，其中每个TTI的第一个符号发参考信号，后面的符号用于被调度的UE发送数据。图5b中一个子帧中TTI的长度分别为4、4、4、2个符号。图中的Rn(n＝1,2,3,4)代表不同的UE发送的不同参考信号。即第一用户设备的参考信号设置在第一用户设备的数据的符号之前的所有参考信号的符号中，和第一用户设备的数据的符号之后的所有参考信号的符号中。
对于每个子帧，UE1、UE2、UE3都是在与对应的数据的符号之前和数据的符号之后的每个参考信号位置上都发送，每个参考信号都是在4个位置上发送，而对于UE4，要在对应的数据的符号之前的每个参考信号位置上发送R4。对于每个UE来说，解调性能都能得到进一步改善，而参考信号的开销同样得到了控制。
图6a和图6b分别为当短传输时间间隔为一个符号时参考信号的符号的位 置的第一示例示意图和第二示例示意图。与前面的实施例相比，本实施例的区别在于每个short TTI的长度为1个符号。如图6a/6b所示，一个符号代表一个short TTI。其中图6a和图6b中一行代表一个子帧，图中横坐标表示时间t(ms)，纵坐标表示频率f(Hz)，每个格子的横坐标表示一个符号长度，每个格子的纵坐标代表一个子载波，数字“1，2，3……10”代表了不同的short TTI上调度的不同的UE:UE1，UE2，UE3……UE10，R1、R2…R10表示不同TTI的参考信号。图6a中一个子帧中参考信号的位置分别为第1，4，8，11个short TTI(符号)上，其余的short TTI分别发送不同UE的数据。图6b中一个子帧中参考信号的位置分别为第0，4，7，11个short TTI(符号)上。图中的Rn(n＝1,2,3,4....)代表不同的UE发送的不同参考信号。即将第一用户设备的参考信号设置在第一用户设备的数据的符号之前的参考信号的符号中，或第一用户设备的数据的符号之后且与所述第一用户设备的数据的符号相邻的参考信号的符号中。
对于图6a，UE1，UE2，UE3共享符号1上的参考信号，即在符号1上发送R1，R2，R3；UE4与UE5共享符号4上的参考信号，即在符号4上发送R4，R5；UE6,UE7,UE8共享符号8上的参考信号，即在符号8上发送R6，R7，R8；UE9,UE10共享符号11上的参考信号，即在符号11上发送R9，R10。
对于图6b，UE1，UE2，UE3共享符号0上的参考信号，即在符号0上发送R1，R2，R3；UE4与UE5共享符号4上的参考信号，即在符号4上发送R4，R5；UE6，UE7，UE8共享符号7上的参考信号，即在符号7上发送R6，R7，R8；UE9，UE10共享符号11上的参考信号，即在符号11上发送R9，R10。
图7a和图7b分别为当短传输时间间隔为一个符号时参考信号的符号的位置的第三示例示意图和第四示例示意图。与图6a和图6b描述的实施例相比，本实施例的区别在于某些short TTI上的UE不仅可以在之前的RS位置发自己的参考信号，还可以同时在之后相邻的RS上发自己的参考信号，以提高解调性能。如图7a/7b所示，一个符号代表一个short TTI。其中图7a和图7b中一行代表一个子帧，图中横坐标表示时间t(ms)，纵坐标表示频率f(Hz)，每个格子的横坐标表示一个符号长度，每个格子的纵坐标代表一个子载波，数字“1， 2，3……10”代表了不同的short TTI上调度的不同的UE:UE1，UE2，UE3……UE10，R1、R2…R10表示不同TTI的参考信号。图7a中一个子帧中参考信号的位置分别位于第1，4，8，11个short TTI(符号)上，其余的short TTI分别发送不同UE的数据。图7b中一个子帧中参考信号的位置分别为第0，4，7，11个short TTI(符号)上。图中的Rn(n＝1,2,3,4....)代表不同的UE发送的不同参考信号。即所述短传输时间间隔为一个符号时，将所述多个第一用户设备中的第一类用户设备的一个参考信号设置在所述第一类用户设备的数据的符号之前的参考信号的符号中，或所述第一类用户设备的短传输时间间隔之后且与所述第一类用户设备的短传输时间间隔相邻的参考信号的符号中；将所述多个第一用户设备中的第二类用户设备的多个参考信号设置在所述第二类用户设备的数据的符号之前的参考信号的符号中，以及所述第二类用户设备的数据的符号之后且与所述第二类用户设备的数据的符号相邻的参考信号的符号中。
对于图7a，UE1，UE2，UE3共享符号1上的参考信号，即在符号1上发送R1，R2，R3；UE3，UE4与UE5共享符号4上的参考信号，即在符号4上发送R3，R4，R5；UE6，UE7，UE8共享符号8上的参考信号，即在符号8上发送R6，R7，R8；UE8，UE9，UE10共享符号11上的参考信号，即在符号11上发送R8，R9，R10。这样UE3与UE8分别都在两个参考信号的位置上发送了自己的参考信号，相比图6a，UE3与UE8的解调性能会得到改善。
对于图7b，UE1，UE2，UE3共享符号0上的参考信号，即在符号0上发送R1，R2，R3；UE3，UE4与UE5共享符号4上的参考信号，即在符号4上发送R3，R4，R5；UE6，UE7，UE8共享符号7上的参考信号，即在符号7上发送R6，R7，R8；UE8，UE9，UE10共享符号11上的参考信号，即在符号11上发送R8，R9，R10。同样UE3与UE8分别都在两个参考信号的位置上发送了自己的参考信号，相比图7b，UE3与UE8的解调性能会得到改善。
图8为本发明实施例提供的另一种信号的发送方法的流程示意图，该方法包括以下步骤：
S201，接收在一个子帧中为多个第一用户设备配置的传输参考信号和数据所需的资源和图样。
第一用户设备可以是接收基站单独发送的配置给该第一用户设备的时域资源和图样，也可以是接收基站发送给多个第一用户设备的整个子帧对应的资源和图样指示，然后从中获取配置该第一用户设备的时域资源和图样。
在这里，传输参考信号和数据所需的资源指时域资源，图样用于指示参考信号的符号和数据的符号在子帧中的时域位置关系。
一个子帧包括N个符号，N为正整数，该N个符号包括多个数据的符号和多个参考信号的符号，由于在本发明实施例中，引入了短传输时间间隔技术，每个第一用户设备传输参考信号和/或数据所需的时域资源对应一个短传输时间间隔，且所述短传输时间间隔小于或等于0.5ms，因此，一个子帧可包括多个第一用户设备传输参考信号和数据所需的时域资源。需要说明的是，每个第一用户设备对应的短传输时间间隔可以相等或不相等，所述参考信号的符号设置在所述多个第一用户设备的数据的符号之前和/或数据的符号之后。
在设计参考信号的图样时，参考信号的符合和数据的符号在子帧中的时域位置关系需满足两个前提，即前提一和前提二，前提一为，将每个第一用户设备的参考信号所需的时域资源包括在多个参考信号的符号中，即一个参考信号的符号包括多个第一用户设备的参考信号，前提二为以下条件中的至少一个：每个第一用户设备的参考信号设置在每个第一用户设备的数据的符号之前的参考信号的符号中，和/或每个第一用户设备的数据的符号之后的参考信号的符号中。这样，经过计算，一个子帧只需4个符号用于发送参考信号，就可满足给多个第一用户设备传输参考信号所需的资源，从而有效地节省了基站发送参考信号的开销；且部分或全部第一用户设备可在多个参考信号的符号中包含其参考信号，使该第一用户设备的解调性能得到进一步改善。
在本实施例中，每个第一用户设备的数据的符号之前的参考信号的符号中，包括：所述第一用户设备的短传输时间间隔中与第一个数据的符号相邻的参考信号的符号中，和/或所述第一用户设备的短传输时间间隔之前的所有参考信号的符号中。
每个第一用户设备的数据的符号之后的参考信号的符号中，包括：所述第一用户设备的短传输时间间隔之后且与所述第一用户设备的短传输时间间隔中的最后一个数据的符号相邻的参考信号的符号中，和/或所述第一用户设备的短传输时间间隔之后的所有参考信号的符号中。
S202，根据所述图样在所述资源上传输所述参考信号和数据。
第一用户设备根据数据的图样和参考信号的图样分别在对应的时域资源上向基站传输数据和参考信号，基站在包含每个第一用户设备的参考信号的符号中获得第一用户设备的参考信号，然后根据该参考信号解析接收到的该第一用户设备的数据。
另外，对于在同一个符号位置上发送多个参考信号，不同的TTI长度的频域带宽可能不尽相同。对于带宽相同的UE，利用现有的码分复用技术可以区分出不同的参考信号，其中码分复用中的循环移位间隔为ΔCS＝12/NUE，NUE为共享此参考信号的UE的数目。而对于不同带宽的UE，该方法还包括：若一个参考信号的符号中包括多个第一用户设备的参考信号，且所述多个第一用户设备的带宽不同，所述多个第一用户设备在部分物理资源块上共享频带，对于其中一个第一用户设备与其它第一用户设备共享频带的多个物理资源块，采用码分复用技术解析所述共享频带的部分物理资源块上的所述一个用户设备与其它第一用户设备的参考信号。
具体如图9所示的不同带宽的用户设备的参考信号共享一个符号的区分示意图，若UE1，UE2，UE3的带宽各不相同，分别为6*PRB，12*PRB，18*PRB的带宽，那么R1占用前6个PRB，R2占用前12个PRB，并且在前6个PRB上与R1共享频带，即用码分复用区分前6个PRB上的R1与R2，R3占用前18个PRB，并且在前6个PRB上与R1，R2共享频带，即码分复用区分前6个PRB上的R1，R2，R3，在中间6个PRB(第7个PRB-第12个PRB)上与R2共享频带，利用码分复用区分中间6个PRB上的R2，R3。最后6个PRB(第13个PRB到18个PRB)为R3独立占用。
根据本发明实施例提供的一种信号的发送方法，基站在一个子帧中为多个用户设备配置的参考信号的符号和数据的符号在子帧中的时域位置关系满足前提一和前提二；前提一为，将每个用户设备的参考信号所需的时域资源包括在多个参考信号的符号中，前提二为以下条件中的至少一个：将每个用户设备的多个参考信号设置在每个用户设备的数据的符号之前的参考信号的符号中，和/或每个用户设备的数据的符号之后的参考信号的符号中，有效地节省了用户设备发送参考信号的开销，满足了资源设计的需求；且使得部分或全部用户设备可在多个参考信号的符号中包含其参考信号，使用户设备的解调性能得到 进一步改善。
需要说明的是，对于前述的各方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本发明并不受所描述的动作顺序的限制，因为根据本发明，某些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本发明所必须的。
图10为本发明实施例提供的一种基站的结构示意图，该基站1000包括：
配置单元11，用于在一个子帧中为多个第一用户设备配置传输参考信号和数据所需的资源和图样。
第一用户设备发送参考信号或数据给基站，需按照基站配置的子帧上的时域资源和/或频域资源进行信号或数据的发送，在本实施例中，重点考虑子帧上的时域资源的配置，对频域资源的配置不做限制。因此，在这里，资源是指传输参考信号和数据所需的时域资源，图样用于指示参考信号的符号和数据的符号在子帧中的时域位置关系。
一个子帧包括N个符号，N为正整数，该N个符号包括多个数据的符号和多个参考信号的符号，由于在本发明实施例中，引入了短传输时间间隔技术，每个第一用户设备传输参考信号和/或数据所需的时域资源对应一个短传输时间间隔，且所述短传输时间间隔小于或等于0.5ms，因此，一个子帧可包括多个第一用户设备传输参考信号和数据所需的资源、图样。需要说明的是，每个第一用户设备对应的短传输时间间隔可以相等或不相等，参考信号的符号设置每个第一用户设备的数据的符号之前和/或数据的符号之后。
在设计参考信号的图样时，参考信号的符合和数据的符号在子帧中的时域位置关系需满足两个前提，即前提一和前提二，前提一为，将每个第一用户设备的参考信号所需的时域资源包括在多个参考信号的符号中，即一个参考信号的符号包括多个第一用户设备的参考信号，前提二为以下条件中的至少一个：每个第一用户设备的参考信号设置在每个第一用户设备的数据的符号之前的参考信号的符号中，和/或每个第一用户设备的数据的符号之后的参考信号的符号中。这样，经过计算，一个子帧只需4个符号用于发送参考信号，就可满 足给多个第一用户设备传输参考信号所需的资源，从而有效地节省了基站发送参考信号的开销；且部分或全部第一用户设备可在多个参考信号的符号中包含其参考信号，使该第一用户设备的解调性能得到进一步改善。
在本实施例中，每个第一用户设备的数据的符号之前的参考信号的符号中，包括：所述第一用户设备的短传输时间间隔中与第一个数据的符号相邻的参考信号的符号中，和/或所述第一用户设备的短传输时间间隔之前的所有参考信号的符号中。
每个第一用户设备的数据的符号之后的参考信号的符号中，包括：所述第一用户设备的短传输时间间隔之后且与所述第一用户设备的短传输时间间隔中的最后一个数据的符号相邻的参考信号的符号中，和/或所述第一用户设备的短传输时间间隔之后的所有参考信号的符号中。
进一步地，所述短传输时间间隔大于一个符号时，前提二具体包括：
所述短传输时间间隔为一个符号时，将所述多个第一用户设备中的第一类用户设备的一个参考信号设置在所述第一类用户设备的数据的符号之前的参考信号的符号中，或所述第一类用户设备的短传输时间间隔之后且与所述第一类用户设备的短传输时间间隔相邻的参考信号的符号中；
将所述多个第一用户设备中的第二类用户设备的多个参考信号设置在所述第二类用户设备的数据的符号之前的参考信号的符号中，以及所述第二类用户设备的数据的符号之后且与所述第二类用户设备的数据的符号相邻的参考信号的符号中。
在该实现方式中，部分UE可在多个参考信号的符号中包含其参考信号，使该UE的解调性能得到进一步改善。
发送单元12，用于将所述多个第一用户设备传输参考信号和数据所需的资源的信息和所述图样发送给所述多个第一用户设备。
具体地，基站通过下行控制信息的比特域或高层信令将多个第一用户设备传输参考信号和数据所需的资源和图样发送给所述多个第一用户设备。该下行控制信息包括用于调度物理上行共享信道(英文：Physical Uplink Shared Channel，简称：PUSCH)或物理下行共享信道(英文：Physical Downlink Shared Channel，简称：PDSCH)的下行控制信息。
基站可以是将整个子帧对应的资源和图样指示给进行配置的多个第一用户设备，也可以是将配置给某个第一用户设备的时域资源和图样发送给该第一用户设备。
根据本发明实施例提供的一种基站，在一个子帧中为多个用户设备配置的参考信号的符号和数据的符号在子帧中的时域位置关系满足前提一和前提二；前提一为，将每个用户设备的参考信号所需的资源包括在多个参考信号的符号中，前提二为以下条件中的至少一个：将每个用户设备的多个参考信号设置在每个用户设备对应的数据的符号之前的参考信号的符号中，和/或每个用户设备的数据的符号之后的参考信号的符号中，从而有效地节省了发送参考信号的开销，满足了资源设计的需求；且部分或全部用户设备可在多个参考信号的符号中包含其参考信号，使该用户设备的解调性能得到进一步改善。
图11为本发明实施例提供的一种用户设备的结构示意图，该用户设备2000包括：
接收单元21，用于接收在一个子帧中为多个第一用户设备配置的传输参考信号和数据所需的资源和图样。
第一用户设备可以是接收基站单独发送的配置给该第一用户设备的时域资源和图样，也可以是接收基站发送给多个第一用户设备的整个子帧对应的资源和图样指示，然后从中获取配置该第一用户设备的时域资源和图样。
在这里，传输参考信号和数据所需的资源指时域资源，图样用于指示参考信号的符号和数据的符号在子帧中的时域位置关系。
一个子帧包括N个符号，N为正整数，该N个符号包括多个数据的符号和多个参考信号的符号，由于在本发明实施例中，引入了短传输时间间隔技术，每个第一用户设备传输参考信号和/或数据所需的时域资源对应一个短传输时间间隔，且所述短传输时间间隔小于或等于0.5ms，因此，一个子帧可包括多个第一用户设备传输参考信号和数据所需的时域资源。需要说明的是，每个第一用户设备对应的短传输时间间隔可以相等或不相等，所述参考信号的符号设置在所述多个第一用户设备的数据的符号之前和/或数据的符号之后。
在设计参考信号的图样时，参考信号的符合和数据的符号在子帧中的时域 位置关系需满足两个前提，即前提一和前提二，前提一为，将每个第一用户设备的参考信号所需的时域资源包括在多个参考信号的符号中，即一个参考信号的符号包括多个第一用户设备的参考信号，前提二为以下条件中的至少一个：每个第一用户设备的参考信号设置在每个第一用户设备的数据的符号之前的参考信号的符号中，和/或每个第一用户设备的数据的符号之后的参考信号的符号中。这样，经过计算，一个子帧只需4个符号用于发送参考信号，就可满足给多个第一用户设备传输参考信号所需的资源，从而有效地节省了基站发送参考信号的开销；且部分或全部第一用户设备可在多个参考信号的符号中包含其参考信号，使该第一用户设备的解调性能得到进一步改善。
在本实施例中，每个第一用户设备的数据的符号之前的参考信号的符号中，包括：所述第一用户设备的短传输时间间隔中与第一个数据的符号相邻的参考信号的符号中，和/或所述第一用户设备的短传输时间间隔之前的所有参考信号的符号中。
每个第一用户设备的数据的符号之后的参考信号的符号中，包括：所述第一用户设备的短传输时间间隔之后且与所述第一用户设备的短传输时间间隔中的最后一个数据的符号相邻的参考信号的符号中，和/或所述第一用户设备的短传输时间间隔之后的所有参考信号的符号中。
发送单元22，用于根据所述图样在所述资源上传输所述参考信号和数据。
第一用户设备根据数据的图样和参考信号的图样分别在对应的时域资源上向基站传输数据和参考信号，基站在包含每个第一用户设备的参考信号的符号中获得第一用户设备的参考信号，然后根据该参考信号解析接收到的该第一用户设备的数据。
另外，对于在同一个符号位置上发送多个参考信号，不同的TTI长度的频域带宽可能不尽相同。对于带宽相同的UE，利用现有的码分复用技术可以区分出不同的参考信号，其中码分复用中的循环移位间隔为ΔCS＝12/NUE，NUE为共享此参考信号的UE的数目。而对于不同带宽的UE，该方法还包括：若一个参考信号的符号中包括多个第一用户设备的参考信号，且所述多个第一用户设备的带宽不同，所述多个第一用户设备在部分物理资源块上共享频带，对于其中一个第一用户设备与其它第一用户设备共享频带的多个物理资源块，采 用码分复用技术解析所述共享频带的部分物理资源块上的所述一个用户设备与其它第一用户设备的参考信号。
具体如图9所示的不同带宽的用户设备的参考信号共享一个符号的区分示意图，若UE1，UE2，UE3的带宽各不相同，分别为6*PRB，12*PRB，18*PRB的带宽，那么R1占用前6个PRB，R2占用前12个PRB，并且在前6个PRB上与R1共享频带，即用码分复用区分前6个PRB上的R1与R2，R3占用前18个PRB，并且在前6个PRB上与R1，R2共享频带，即码分复用区分前6个PRB上的R1，R2，R3，在中间6个PRB(第7个PRB-第12个PRB)上与R2共享频带，利用码分复用区分中间6个PRB上的R2，R3。最后6个PRB(第13个PRB到18个PRB)为R3独立占用。
根据本发明实施例提供的一种用户设备，基站在一个子帧中为多个用户设备配置的参考信号的符号和数据的符号在子帧中的时域位置关系满足前提一和前提二；前提一为，将每个用户设备的参考信号所需的时域资源包括在多个参考信号的符号中，前提二为以下条件中的至少一个：将每个用户设备的多个参考信号设置在每个用户设备的数据的符号之前的参考信号的符号中，和/或每个用户设备的数据的符号之后的参考信号的符号中，有效地节省了用户设备发送参考信号的开销，满足了资源设计的需求；且使得部分或全部用户设备可在多个参考信号的符号中包含其参考信号，使用户设备的解调性能得到进一步改善。
图12为本发明实施例提供的另一种基站的结构示意图，该基站3000包括处理器31和发送器32，其中：
所述处理器31用于在一个子帧中为多个第一用户设备配置传输参考信号和数据所需的资源和图样，其中，所述图样指示所述参考信号的符号和所述数据的符号在子帧中的时域位置关系，所述时域位置关系满足前提一和前提二；
所述前提一为，每个第一用户设备的参考信号所需的时域资源包括在多个参考信号的符号中；
所述前提二为以下条件中的至少一个：
每个第一用户设备的参考信号设置在每个第一用户设备的数据的符号之 前的参考信号的符号中，和/或每个第一用户设备的数据的符号之后的参考信号的符号中；
所述发送器32用于将所述多个第一用户设备传输参考信号和数据所需的资源的信息和所述图样发送给所述多个第一用户设备。
作为一种可能的实现方式，一个子帧包括N个符号，所述N为正整数，所述N个符号包括所述多个数据的符号和所述多个参考信号的符号，每个第一用户设备传输参考信号和/或数据所需的时域资源对应一个短传输时间间隔，且所述短传输时间间隔小于或等于0.5ms。
作为另一种可能的实现方式，每个第一用户设备的数据的符号之前的参考信号的符号中，包括：所述第一用户设备的短传输时间间隔中与第一个数据的符号相邻的参考信号的符号中，和/或所述第一用户设备的短传输时间间隔之前的所有参考信号的符号中。
作为又一种可能的实现方式，每个第一用户设备的数据的符号之后的参考信号的符号中，包括：所述第一用户设备的短传输时间间隔之后且与所述第一用户设备的短传输时间间隔中的最后一个数据的符号相邻的参考信号的符号中，和/或所述第一用户设备的短传输时间间隔之后的所有参考信号的符号中。
作为又一种可能的实现方式，所述短传输时间间隔为一个符号时，所述前提二具体包括：
将所述多个第一用户设备中的第一类用户设备的一个参考信号设置在所述第一类用户设备的数据的符号之前的参考信号的符号中，或所述第一类用户设备的短传输时间间隔之后且与所述第一类用户设备的短传输时间间隔相邻的参考信号的符号中；以及
将所述多个第一用户设备中的第二类用户设备的多个参考信号设置在所述第二类用户设备的数据的符号之前的参考信号的符号中，以及所述第二类用户设备的数据的符号之后且与所述第二类用户设备的数据的符号相邻的参考信号的符号中。
作为又一种可能的实现方式，所述多个第一用户设备对应的短传输时间间隔相等或不相等，所述参考信号的符号设置在所述多个第一用户设备的数据的符号之前和/或数据的符号之后。
根据本发明实施例提供的一种基站，在一个子帧中为多个用户设备配置的参考信号的符号和数据的符号在子帧中的时域位置关系满足前提一和前提二；前提一为，将每个用户设备的参考信号所需的资源包括在多个参考信号的符号中，前提二为以下条件中的至少一个：将每个用户设备的多个参考信号设置在每个用户设备对应的数据的符号之前的参考信号的符号中，和/或每个用户设备的数据的符号之后的参考信号的符号中，从而有效地节省了发送参考信号的开销，满足了资源设计的需求；且部分或全部用户设备可在多个参考信号的符号中包含其参考信号，使该用户设备的解调性能得到进一步改善。
图13为本发明实施例提供的另一种用户设备的结构示意图，该用户设备4000包括接收器41和发送器42，其中：
所述接收器41用于接收在一个子帧中为多个第一用户设备配置的传输参考信号和数据所需的资源和图样，其中，所述图样指示所述参考信号的符号和所述数据的符号在子帧中的时域位置关系，所述时域位置关系满足前提一和前提二；
所述前提一为，每个第一用户设备的参考信号所需的时域资源包括在多个参考信号的符号中；所述前提二为以下条件中的至少一个：每个第一用户设备的参考信号设置在每个第一用户设备的数据的符号之前的参考信号的符号中，和/或每个第一用户设备的数据的符号之后的参考信号的符号中；
所述发送器42用于根据所述图样在所述资源上传输所述参考信号和数据。
作为一种可能的实现方式，所述用户设备4000还包括：处理器43；
所述处理器43用于若一个参考信号的符号中包括多个第一用户设备的参考信号，且所述多个第一用户设备的带宽不同，所述多个第一用户设备在部分物理资源块上共享频带，对于其中一个第一用户设备与其它第一用户设备共享频带的多个物理资源块，采用码分复用技术解析所述共享频带的部分物理资源块上的所述一个用户设备与其它第一用户设备的参考信号。
根据本发明实施例提供的一种用户设备，基站在一个子帧中为多个用户设备配置的参考信号的符号和数据的符号在子帧中的时域位置关系满足前提一 和前提二；前提一为，将每个用户设备的参考信号所需的时域资源包括在多个参考信号的符号中，前提二为以下条件中的至少一个：将每个用户设备的多个参考信号设置在每个用户设备的数据的符号之前的参考信号的符号中，和/或每个用户设备的数据的符号之后的参考信号的符号中，有效地节省了用户设备发送参考信号的开销，满足了资源设计的需求；且使得部分或全部用户设备可在多个参考信号的符号中包含其参考信号，使用户设备的解调性能得到进一步改善。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
本发明实施例方法中的步骤可以根据实际需要进行顺序调整、合并和删减。
本发明实施例装置中的单元可以根据实际需要进行合并、划分和删减。本领域的技术人员可以将本说明书中描述的不同实施例以及不同实施例的特征进行结合或组合。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到本发明可以用硬件实现，或固件实现，或它们的组合方式来实现。当使用软件实现时，可以将上述功能存储在计算机可读介质中或作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是计算机能够存取的任何可用介质。以此为例但不限于：计算机可读介质可以包括随机存取存储器(Random Access Memory，RAM)、只读存储器(Read-Only Memory，ROM)、电可擦可编程只读存储器(Electrically Erasable Programmable Read-Only Memory，EEPROM)、只读光盘(Compact Disc Read-Only Memory，CD-ROM)或其他光盘存储、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质。此外。任何连接可以适当的成为计算机可读介质。例如，如果软件是使用同轴电缆、光纤光缆、双绞线、数字用户线(Digital Subscriber Line，DSL)或者诸如红外线、无线电和微波之类的无线技术从网站、服务器或者其他远程源传输的，那么同轴电缆、光纤光缆、双绞 线、DSL或者诸如红外线、无线和微波之类的无线技术包括在所属介质的定影中。如本发明所使用的，盘(Disk)和碟(disc)包括压缩光碟(CD)、激光碟、光碟、数字通用光碟(DVD)、软盘和蓝光光碟，其中盘通常磁性的复制数据，而碟则用激光来光学的复制数据。上面的组合也应当包括在计算机可读介质的保护范围之内。
总之，以上所述仅为本发明技术方案的较佳实施例而已，并非用于限定本发明的保护范围。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

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  1. 一种信号的发送方法，其特征在于，所述方法包括：
    在一个子帧中为多个第一用户设备配置传输参考信号和数据所需的资源和图样，其中，所述图样指示所述参考信号的符号和所述数据的符号在子帧中的时域位置关系，所述时域位置关系满足前提一和前提二；
    所述前提一为，每个第一用户设备的参考信号所需的时域资源包括在多个参考信号的符号中；
    所述前提二为以下条件中的至少一个：
    每个第一用户设备的参考信号设置在每个第一用户设备的数据的符号之前的参考信号的符号中，和/或
    每个第一用户设备的数据的符号之后的参考信号的符号中；
    将所述多个第一用户设备传输参考信号和数据所需的资源的信息和所述图样发送给所述多个第一用户设备。
  2. 如权利要求1所述的方法，其特征在于，一个子帧包括N个符号，所述N为正整数，所述N个符号包括所述多个数据的符号和所述多个参考信号的符号，每个第一用户设备传输参考信号和/或数据所需的时域资源对应一个短传输时间间隔，且所述短传输时间间隔小于或等于0.5ms。
  3. 如权利要求2所述的方法，其特征在于，每个第一用户设备的数据的符号之前的参考信号的符号中，包括：所述第一用户设备的短传输时间间隔中与第一个数据的符号相邻的参考信号的符号中，和/或所述第一用户设备的短传输时间间隔之前的所有参考信号的符号中。
  4. 如权利要求2所述的方法，其特征在于，每个第一用户设备的数据的符号之后的参考信号的符号中，包括：所述第一用户设备的短传输时间间隔之后且与所述第一用户设备的短传输时间间隔中的最后一个数据的符号相邻的参考信号的符号中，和/或所述第一用户设备的短传输时间间隔之后的所有参 考信号的符号中。
  5. 如权利要求2-4任意一项所述的方法，其特征在于，所述短传输时间间隔为一个符号时，所述前提二具体包括：
    将所述多个第一用户设备中的第一类用户设备的一个参考信号设置在所述第一类用户设备的数据的符号之前的参考信号的符号中，或所述第一类用户设备的短传输时间间隔之后且与所述第一类用户设备的短传输时间间隔相邻的参考信号的符号中；以及
    将所述多个第一用户设备中的第二类用户设备的多个参考信号设置在所述第二类用户设备的数据的符号之前的参考信号的符号中，以及所述第二类用户设备的数据的符号之后且与所述第二类用户设备的数据的符号相邻的参考信号的符号中。
  6. 如权利要求2-5任意一项所述的方法，其特征在于，所述多个第一用户设备对应的短传输时间间隔相等或不相等，所述参考信号的符号设置在所述多个第一用户设备的数据的符号之前和/或数据的符号之后。
  7. 一种信号的发送方法，其特征在于，所述方法包括：
    接收在一个子帧中为多个第一用户设备配置的传输参考信号和数据所需的资源和图样，其中，所述图样指示所述参考信号的符号和所述数据的符号在子帧中的时域位置关系，所述时域位置关系满足前提一和前提二；
    所述前提一为，每个第一用户设备的参考信号所需的时域资源包括在多个参考信号的符号中；
    所述前提二为以下条件中的至少一个：
    每个第一用户设备的参考信号设置在每个第一用户设备的数据的符号之前的参考信号的符号中，和/或
    每个第一用户设备的数据的符号之后的参考信号的符号中；
    根据所述图样在所述资源上传输所述参考信号和数据。
  8. 如权利要求7所述的方法，其特征在于，所述方法还包括：
    若一个参考信号的符号中包括多个第一用户设备的参考信号，且所述多个第一用户设备的带宽不同，所述多个第一用户设备在部分物理资源块上共享频带，对于其中一个第一用户设备与其它第一用户设备共享频带的多个物理资源块，采用码分复用技术解析所述共享频带的部分物理资源块上的所述一个用户设备与其它第一用户设备的参考信号。
  9. 一种基站，其特征在于，所述基站包括：
    配置单元，用于在一个子帧中为多个第一用户设备配置传输参考信号和数据所需的资源和图样，其中，所述图样指示所述参考信号的符号和所述数据的符号在子帧中的时域位置关系，所述时域位置关系满足前提一和前提二；
    所述前提一为，每个第一用户设备的参考信号所需的时域资源包括在多个参考信号的符号中；
    所述前提二为以下条件中的至少一个：
    每个第一用户设备的参考信号设置在每个第一用户设备的数据的符号之前的参考信号的符号中，和/或
    每个第一用户设备的数据的符号之后的参考信号的符号中；
    发送单元，用于将所述多个第一用户设备传输参考信号和数据所需的资源的信息和所述图样发送给所述多个第一用户设备。
  10. 如权利要求9所述的基站，其特征在于，一个子帧包括N个符号，所述N为正整数，所述N个符号包括所述多个数据的符号和所述多个参考信号的符号，每个第一用户设备传输参考信号和/或数据所需的时域资源对应一个短传输时间间隔，且所述短传输时间间隔小于或等于0.5ms。
  11. 如权利要求10所述的基站，其特征在于，每个第一用户设备的数据的符号之前的参考信号的符号中，包括：所述第一用户设备的短传输时间间隔中与第一个数据的符号相邻的参考信号的符号中，和/或所述第一用户设备的短传输时间间隔之前的所有参考信号的符号中。
  12. 如权利要求10所述的基站，其特征在于，每个第一用户设备的数据 的符号之后的参考信号的符号中，包括：所述第一用户设备的短传输时间间隔之后且与所述第一用户设备的短传输时间间隔中的最后一个数据的符号相邻的参考信号的符号中，和/或所述第一用户设备的短传输时间间隔之后的所有参考信号的符号中。
  13. 如权利要求10-12任意一项所述的基站，其特征在于，所述短传输时间间隔为一个符号时，所述前提二具体包括：
    将所述多个第一用户设备中的第一类用户设备的一个参考信号设置在所述第一类用户设备的数据的符号之前的参考信号的符号中，或所述第一类用户设备的短传输时间间隔之后且与所述第一类用户设备的短传输时间间隔相邻的参考信号的符号中；以及
    将所述多个第一用户设备中的第二类用户设备的多个参考信号设置在所述第二类用户设备的数据的符号之前的参考信号的符号中，以及所述第二类用户设备的数据的符号之后且与所述第二类用户设备的数据的符号相邻的参考信号的符号中。
  14. 如权利要求10-13任意一项所述的基站，其特征在于，所述多个第一用户设备对应的短传输时间间隔相等或不相等，所述参考信号的符号设置在所述多个第一用户设备的数据的符号之前和/或数据的符号之后。
  15. 一种用户设备，其特征在于，所述用户设备包括：
    接收单元，用于接收在一个子帧中为多个第一用户设备配置的传输参考信号和数据所需的资源和图样，其中，所述图样指示所述参考信号的符号和所述数据的符号在子帧中的时域位置关系，所述时域位置关系满足前提一和前提二；
    所述前提一为，每个第一用户设备的参考信号所需的时域资源包括在多个参考信号的符号中；
    所述前提二为以下条件中的至少一个：
    每个第一用户设备的参考信号设置在每个第一用户设备的数据的符号之前的参考信号的符号中，和/或
    每个第一用户设备的数据的符号之后的参考信号的符号中；
    发送单元，用于根据所述图样在所述资源上传输所述参考信号和数据。
  16. 如权利要求15所述的用户设备，其特征在于，所述用户设备还包括：
    解析单元，用于若一个参考信号的符号中包括多个第一用户设备的参考信号，且所述多个第一用户设备的带宽不同，所述多个第一用户设备在部分物理资源块上共享频带，对于其中一个第一用户设备与其它第一用户设备共享频带的多个物理资源块，采用码分复用技术解析所述共享频带的部分物理资源块上的所述一个用户设备与其它第一用户设备的参考信号。
  17. 一种基站，其特征在于，所述基站包括：处理器和发送器；
    所述处理器用于在一个子帧中为多个第一用户设备配置传输参考信号和数据所需的资源和图样，其中，所述图样指示所述参考信号的符号和所述数据的符号在子帧中的时域位置关系，所述时域位置关系满足前提一和前提二；
    所述前提一为，每个第一用户设备的参考信号所需的时域资源包括在多个参考信号的符号中；
    所述前提二为以下条件中的至少一个：
    每个第一用户设备的参考信号设置在每个第一用户设备的数据的符号之前的参考信号的符号中，和/或
    每个第一用户设备的数据的符号之后的参考信号的符号中；
    所述发送器用于将所述多个第一用户设备传输参考信号和数据所需的资源的信息和所述图样发送给所述多个第一用户设备。
  18. 如权利要求17所述的基站，其特征在于，一个子帧包括N个符号，所述N为正整数，所述N个符号包括所述多个数据的符号和所述多个参考信号的符号，每个第一用户设备传输参考信号和/或数据所需的时域资源对应一个短传输时间间隔，且所述短传输时间间隔小于或等于0.5ms。
  19. 如权利要求18所述的基站，其特征在于，每个第一用户设备的数据的符号之前的参考信号的符号中，包括：所述第一用户设备的短传输时间间隔 中与第一个数据的符号相邻的参考信号的符号中，和/或所述第一用户设备的短传输时间间隔之前的所有参考信号的符号中。
  20. 如权利要求18所述的基站，其特征在于，每个第一用户设备的数据的符号之后的参考信号的符号中，包括：所述第一用户设备的短传输时间间隔之后且与所述第一用户设备的短传输时间间隔中的最后一个数据的符号相邻的参考信号的符号中，和/或所述第一用户设备的短传输时间间隔之后的所有参考信号的符号中。
  21. 如权利要求18-20任意一项所述的基站，其特征在于，所述短传输时间间隔为一个符号时，所述前提二具体包括：
    将所述多个第一用户设备中的第一类用户设备的一个参考信号设置在所述第一类用户设备的数据的符号之前的参考信号的符号中，或所述第一类用户设备的短传输时间间隔之后且与所述第一类用户设备的短传输时间间隔相邻的参考信号的符号中；以及
    将所述多个第一用户设备中的第二类用户设备的多个参考信号设置在所述第二类用户设备的数据的符号之前的参考信号的符号中，以及所述第二类用户设备的数据的符号之后且与所述第二类用户设备的数据的符号相邻的参考信号的符号中。
  22. 如权利要求18-21任意一项所述的基站，其特征在于，所述多个第一用户设备对应的短传输时间间隔相等或不相等，所述参考信号的符号设置在所述多个第一用户设备的数据的符号之前和/或数据的符号之后。
  23. 一种用户设备，其特征在于，所述用户设备包括：接收器和发送器；
    所述接收器用于接收在一个子帧中为多个第一用户设备配置的传输参考信号和数据所需的资源和图样，其中，所述图样指示所述参考信号的符号和所述数据的符号在子帧中的时域位置关系，所述时域位置关系满足前提一和前提二；
    所述前提一为，每个第一用户设备的参考信号所需的时域资源包括在多个 参考信号的符号中；
    所述前提二为以下条件中的至少一个：
    每个第一用户设备的参考信号设置在每个第一用户设备的数据的符号之前的参考信号的符号中，和/或
    每个第一用户设备的数据的符号之后的参考信号的符号中；
    所述发送器用于根据所述图样在所述资源上传输所述参考信号和数据。
  24. 如权利要求23所述的用户设备，其特征在于，所述用户设备还包括：处理器；
    所述处理器用于若一个参考信号的符号中包括多个第一用户设备的参考信号，且所述多个第一用户设备的带宽不同，所述多个第一用户设备在部分物理资源块上共享频带，对于其中一个第一用户设备与其它第一用户设备共享频带的多个物理资源块，采用码分复用技术解析所述共享频带的部分物理资源块上的所述一个用户设备与其它第一用户设备的参考信号。
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