WO2015106694A1 - 数据传输方法、基站以及用户设备 - Google Patents

数据传输方法、基站以及用户设备 Download PDF

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Publication number
WO2015106694A1
WO2015106694A1 PCT/CN2015/070779 CN2015070779W WO2015106694A1 WO 2015106694 A1 WO2015106694 A1 WO 2015106694A1 CN 2015070779 W CN2015070779 W CN 2015070779W WO 2015106694 A1 WO2015106694 A1 WO 2015106694A1
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WIPO (PCT)
Prior art keywords
subframe
base station
symbols
time interval
frequency band
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Ceased
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PCT/CN2015/070779
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English (en)
French (fr)
Inventor
林亚男
沈祖康
高雪娟
司倩倩
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China Academy of Telecommunications Technology CATT
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China Academy of Telecommunications Technology CATT
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Priority to US15/109,223 priority Critical patent/US10321476B2/en
Priority to EP15737894.4A priority patent/EP3096549B1/en
Publication of WO2015106694A1 publication Critical patent/WO2015106694A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14Spectrum sharing arrangements between different networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/52Allocation or scheduling criteria for wireless resources based on load
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0808Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H04W74/0816Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance

Definitions

  • the present invention relates to the field of mobile communications technologies, and in particular, to a data transmission method, a base station, and a user equipment (User Equipment, UE).
  • UE User Equipment
  • LTE Long Term Evolution
  • the LTE system supports two duplex modes: FDD (Frequency Division Duplexing) and TDD (Time Division Duplexing).
  • the two duplex modes use different frame structures. Common to both frame structures is that each radio frame consists of 10 1 ms subframes. Among them, the FDD system uses the first type of frame structure, and the TDD system uses the second type of frame structure. In the first type of frame structure, 10 subframes in one radio frame have the same transmission direction, both uplink or downlink. In the second type of frame structure, each radio frame includes three different subframes: a downlink subframe, an uplink subframe, and a special subframe. The special subframe is composed of three parts, that is, a downlink pilot time slot DwPTS, a guard interval GP, and an uplink pilot time slot UpPTS.
  • one subframe contains 14 symbols, the downlink corresponds to OFDM (Orthogonal Frequency Division Multiplexing) symbols, and the uplink corresponds to SC-FDMA (Single-carrier Frequency). -Division Multiple Access, single carrier frequency division multiple access) symbol. For an extended CP, there are 12 symbols in one subframe.
  • OFDM Orthogonal Frequency Division Multiplexing
  • SC-FDMA Single-carrier Frequency
  • Existing spectrum resources can be divided into licensed spectrum and unlicensed spectrum.
  • the licensed spectrum is a dedicated spectrum that is allocated.
  • the LTE operator has a dedicated licensed frequency band. Different operators have different licensed frequency bands, and there is no interference from other LTE operators.
  • the non-authorized spectrum is a shared spectrum resource. Without special planning, multiple systems can share resources on unlicensed bands.
  • the present invention provides a data transmission method and a base station and a user equipment.
  • a data transmission method is provided.
  • the data transmission method includes: detecting, by the base station, a predetermined frequency band, determining whether there is idleness of the first time in a predetermined time period in the predetermined frequency band subframe p; and if the detection result is yes, the base station is from the next child of the subframe p
  • data is scheduled to be transmitted on consecutive N subframes, and the last A symbols in the last subframe of the consecutive N subframes are set to idle, wherein the total time corresponding to the A symbols is The length is not less than the first time, and N and A are both positive integers.
  • the data transmission method further includes: the base station sends a downlink control signaling DCI to the user equipment, where the DCI is used to schedule the user equipment to perform data reception or transmission on a predetermined frequency band, where the DCI includes a subframe for indicating DCI scheduling. Information on whether the last A symbols are free or the number of symbols that are last idle.
  • the value of A is determined by a pre-agreed manner, or the foregoing base station notifies the user equipment by signaling.
  • the value of the first time is determined by a predetermined manner or by interaction information between the base stations.
  • the value of the first time when the value of the first time is determined by a pre-agreed manner, the value of the first time may be determined according to a system bandwidth, or determined according to a necessary processing delay of the base station.
  • the predetermined time period is located at the last part of the subframe p.
  • the subframe p includes at least a first time interval, a second time interval, and a third time interval; wherein the first time interval is located at a start position of the subframe p, and the third The time interval is located at the end of the subframe, the second time interval is before the third time interval and does not overlap with the first time interval, and the time lengths of the second time interval and the third time interval are not less than the first time; If the base station does not schedule data for data transmission in the first time interval of the subframe p, the predetermined time period is a second time interval; if the base station schedules data for data transmission in the first time interval of the subframe p, the predetermined time is scheduled The time period is the third time interval.
  • the value of the first time interval and/or the second time interval and/or the third time interval is determined by a pre-agreed manner or by interaction information between the base stations.
  • the total length of time corresponding to the last A symbols is not less than the length of the second time interval and the third time interval.
  • the data transmission method further includes: in a case where the predetermined time period is the second time interval, the base station transmits the predetermined signal on the predetermined frequency band by using the last C symbols in the third time interval, wherein C is a positive integer.
  • the predetermined signal comprises a synchronization signal and/or a measurement reference signal.
  • the value of C is determined by a pre-agreed manner, or the foregoing base station notifies the user equipment by signaling.
  • the N subframes include one or more of the following subframes: a downlink subframe, an uplink subframe, and a special subframe.
  • the predetermined frequency band includes an unlicensed frequency band.
  • a data transmission method is provided.
  • the data transmission method includes: the user equipment detects a downlink control signaling DCI sent by the base station, where the DCI is used to schedule the user equipment to receive or transmit data in the subframe p of the predetermined frequency band; in the case that the DCI is detected, the user equipment According to the DCI, the last free symbol number B in the subframe p is determined, where B is a non-negative integer; the user equipment performs data reception or transmission in the subframe p of the predetermined frequency band according to the idle symbol number B.
  • the user equipment determines the last number of symbols B in the subframe p according to the DCI, if the DCI includes information indicating whether the last A symbols in the subframe p are idle, and indicates that the idle state is available, the A is taken as The symbol number B, otherwise zero is used as the symbol number B, where A is a positive integer, and the total length of time corresponding to the last A symbols is not less than the first time.
  • the value of A is determined by a pre-agreed manner, or the foregoing base station notifies the user equipment by signaling.
  • the value of the first time is determined by a predetermined manner, or information exchanged between the base stations.
  • the value of the first time when the value of the first time is determined by a pre-agreed manner, the value of the first time may be determined according to a system bandwidth, or determined according to a necessary processing delay of the base station.
  • the user equipment determines the last idle symbol number B in the subframe p according to the DCI, if the DCI includes information indicating the last idle symbol number in the subframe p, the number of the last idle symbols indicated by the DCI is taken as Number of symbols B.
  • the data transmission method further includes: in a case where the DCI is not detected, the user equipment receives the predetermined signal transmitted by the base station on the last C symbols in the subframe p of the predetermined frequency band, where C is a non-negative integer.
  • the predetermined signal comprises a synchronization signal and/or a measurement reference signal.
  • the value of C is determined by a predetermined manner, or the foregoing base station notifies the user equipment by signaling.
  • the user equipment When the user equipment performs data reception or transmission in the subframe p of the predetermined frequency band according to the number of free symbols B, if the DCI scheduled data is downlink data, the user equipment is in the pre-L of the subframe p of the predetermined frequency band. Data reception is performed on the B symbols; if the data scheduled by the DCI is uplink data, the user equipment performs data transmission on the first L minus B symbols in the subframe p of the predetermined frequency band; where L is the maximum in the subframe p The number of symbols.
  • the predetermined frequency band includes an unlicensed frequency band.
  • a base station is provided.
  • the base station includes: a base station detection module, configured to detect a predetermined frequency band, and determine a predetermined frequency band subframe p Whether there is idleness of the first time in the predetermined time period; the base station processing module is configured to, when the detection result is yes, start data transmission in consecutive N subframes starting from the last subframe of the subframe p And, the last A symbols in the last subframe of the consecutive N subframes are set to idle, wherein the total length of time corresponding to the A symbols is not less than the first time, and N and A are positive integers. .
  • the base station further includes: a first sending module, configured to send downlink control signaling DCI to the user equipment, where the DCI is used to schedule the user equipment to perform data reception or transmission on a predetermined frequency band, where the DCI is included to indicate DCI scheduling. Information on whether the last A symbols in the subframe are free or the number of symbols that are last idle.
  • the value of A is determined by a pre-agreed manner, or the foregoing base station notifies the user equipment by signaling.
  • the value of the first time is determined by a predetermined manner or by interaction information between the base stations.
  • the value of the first time when the value of the first time is determined by a pre-agreed manner, the value of the first time may be determined according to a system bandwidth, or determined according to a necessary processing delay of the base station.
  • the predetermined time period is located at the last part of the subframe p.
  • the subframe p includes at least a first time interval, a second time interval, and a third time interval; wherein the first time interval is located at a start position of the subframe p, and the third The time interval is located at the end of the subframe, the second time interval is before the third time interval and does not overlap with the first time interval, and the time lengths of the second time interval and the third time interval are not less than the first time; If the base station processing module does not schedule data for data transmission in the first time interval of the subframe p, the predetermined time period is the second time interval; if the base station processing module schedules data for data in the first time interval of the subframe p For transmission, the predetermined time period is the third time interval.
  • the value of the first time interval and/or the second time interval and/or the third time interval is determined by a pre-agreed manner or by interaction information between the base stations.
  • the base station processing module sets the last A symbols of the last subframe of the consecutive N subframes to be idle, the total length of time corresponding to the last A symbols is not less than the second time interval and the third time interval. The sum of the lengths.
  • the base station further includes: a second sending module, configured to send a predetermined signal on the predetermined frequency band by using the last C symbols in the third time interval, in a case where the predetermined time period is the second time interval, where C Is a positive integer.
  • the predetermined signal comprises a synchronization signal and/or a measurement reference signal.
  • the value of C is determined by a pre-agreed manner, or the foregoing base station notifies the user equipment by signaling.
  • the N subframes include one or more of the following subframes: a downlink subframe, an uplink subframe, and a special subframe.
  • the predetermined frequency band includes an unlicensed frequency band.
  • a user equipment is provided.
  • the user equipment includes: a terminal detection module, configured to detect a downlink control signaling DCI sent by the base station, where the DCI is used to schedule the user equipment to receive or transmit data in a subframe p of a predetermined frequency band; and the terminal determining module is configured to In the case where the DCI is detected, the last free symbol number B in the subframe p is determined according to the DCI, where B is a non-negative integer; and the terminal processing module is configured to use the idle symbol number B in the subframe p of the predetermined frequency band. Data reception or transmission.
  • the terminal determining module further includes: a first determining submodule, configured to: when the DCI includes information indicating whether the last A symbols in the subframe p are idle, if the space is indicated, A is used as the symbol number B, otherwise Zero is the symbol number B, where A is a positive integer, and the total length of time corresponding to the last A symbols is not less than the first time.
  • the value of A is determined by a predetermined manner, or the foregoing base station notifies the user equipment by signaling.
  • the value of the first time is determined by a predetermined manner or by interaction information between the base stations.
  • the value of the first time when the value of the first time is determined by a pre-agreed manner, the value of the first time may be determined according to a system bandwidth, or determined according to a necessary processing delay of the base station.
  • the terminal determining module further includes: a second determining submodule, configured to use, as the symbol number B, the number of the last idle symbols indicated by the DCI when the DCI includes information indicating the last idle number of symbols in the subframe p.
  • the user equipment further includes: a receiving module, configured to receive, on a last C symbols in the subframe p of the predetermined frequency band, a predetermined signal sent by the base station, where C is a non-negative integer, if the DCI is not detected. .
  • the predetermined signal comprises a synchronization signal and/or a measurement reference signal.
  • the value of C is determined by a predetermined manner, or the foregoing base station notifies the user equipment by signaling.
  • the terminal processing module further includes: a receiving submodule, configured to perform data reception on the first L minus B symbols in the subframe p of the predetermined frequency band when the DCI scheduled data is downlink data; and send the submodule, For the case where the data scheduled by the DCI is uplink data, data transmission is performed on the first L minus B symbols in the subframe p of the predetermined frequency band; where L is the maximum number of symbols in the subframe p.
  • the predetermined frequency band includes an unlicensed frequency band.
  • the present invention determines whether there is time idle in a predetermined time zone of a predetermined frequency band by detecting a predetermined frequency band, and if it is detected, determining that the carrier of the predetermined frequency band is in an idle state, and thus can be from the latter one of the subframe
  • data is scheduled to be transmitted on a plurality of consecutive subframes, thereby implementing the LTE system to operate on a predetermined frequency band.
  • the present invention also enables the next base station to perform detection and data scheduling determination according to the idle symbol by setting the last predetermined symbol in the last subframe of the consecutive multiple subframes to be idle, thereby implementing multiple
  • the LTE system works fairly and efficiently on a predetermined frequency band.
  • FIG. 1 is a schematic flowchart of a data transmission method according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of another data transmission method according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a principle of a data transmission method according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a principle of a data transmission method according to another embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a principle of a data transmission method according to another embodiment of the present invention.
  • FIG. 6 is a structural block diagram of a base station according to an embodiment of the present invention.
  • FIG. 7 is a structural block diagram of another base station according to an embodiment of the present invention.
  • FIG. 8 is a structural block diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 9 is a structural block diagram of another user equipment according to an embodiment of the present invention.
  • Fig. 10 is a block diagram showing an exemplary structure of a computer embodying the technical solution of the present invention.
  • a data transmission method is provided.
  • the data transmission method provided by the embodiment of the present invention includes:
  • Step S101 The base station detects a predetermined frequency band, and determines whether there is idle time of the first time in a predetermined time period in the predetermined frequency band subframe p.
  • Step S103 in the case that the detection result is yes, the base station schedules data for transmission in consecutive N subframes starting from the next subframe of the subframe p, and the last one of the consecutive N subframes Most of the frames
  • the last A symbols are set to idle, wherein the total length of time corresponding to the A symbols is not less than the first time, and N and A are both positive integers.
  • the data transmission method further includes: the base station sends a downlink control signaling DCI to the user equipment, where the DCI is used to schedule the user equipment to perform data reception or transmission on a predetermined frequency band, where the DCI includes a subframe for indicating DCI scheduling. Information on whether the last A symbols are free or the number of symbols that are last idle.
  • the value of A is determined by a pre-agreed manner, or the foregoing base station notifies the user equipment by signaling.
  • the value of the first time is determined by a predetermined manner or by interaction information between the base stations.
  • the value of the first time when the value of the first time is determined by a pre-agreed manner, the value of the first time may be determined according to a system bandwidth, or determined according to a necessary processing delay of the base station.
  • the predetermined time period is located at the last part of the subframe p.
  • the subframe p includes at least a first time interval, a second time interval, and a third time interval; wherein the first time interval is located at a start position of the subframe p, and the third The time interval is located at the end of the subframe, the second time interval is before the third time interval and does not overlap with the first time interval, and the time lengths of the second time interval and the third time interval are not less than the first time; If the base station does not schedule data for data transmission in the first time interval of the subframe p, the predetermined time period is a second time interval; if the base station schedules data for data transmission in the first time interval of the subframe p, the predetermined time is scheduled The time period is the third time interval.
  • the value of the first time interval and/or the second time interval and/or the third time interval is determined by a pre-agreed manner or by interaction information between the base stations.
  • the total length of time corresponding to the last A symbols is not less than the length of the second time interval and the third time interval.
  • the data transmission method further includes: in a case where the predetermined time period is the second time interval, the base station transmits the predetermined signal on the predetermined frequency band by using the last C symbols in the third time interval, wherein C is a positive integer.
  • the predetermined signal comprises a synchronization signal and/or a measurement reference signal.
  • the value of C is determined by a pre-agreed manner, or the foregoing base station notifies the user equipment by signaling.
  • the N subframes include one or more of the following subframes: a downlink subframe, an uplink subframe, and a special subframe.
  • the predetermined frequency band includes an unlicensed frequency band.
  • a data transmission method is provided.
  • the data transmission method provided by the embodiment of the present invention includes:
  • step S201 the user equipment detects the downlink control signaling DCI sent by the base station, where the DCI is used to schedule the user equipment to receive or transmit data in the subframe p of the predetermined frequency band.
  • Step S203 in the case that the DCI is detected, the user equipment determines, according to the DCI, the last idle in the subframe p.
  • Step S205 the user equipment performs data reception or transmission in the subframe p of the predetermined frequency band according to the number of free symbols B.
  • the user equipment determines the last number of symbols B in the subframe p according to the DCI, if the DCI includes information indicating whether the last A symbols in the subframe p are idle, and indicates that the idle state is available, the A is taken as The symbol number B, otherwise zero is used as the symbol number B, where A is a positive integer, and the total length of time corresponding to the last A symbols is not less than the first time.
  • the value of A is determined by a predetermined manner, or the foregoing base station notifies the user equipment by signaling.
  • the value of the first time is determined by a predetermined manner or by interaction information between the base stations.
  • the value of the first time when the value of the first time is determined by a pre-agreed manner, the value of the first time may be determined according to a system bandwidth, or determined according to a necessary processing delay of the base station.
  • the user equipment determines the last idle symbol number B in the subframe p according to the DCI, if the DCI includes information indicating the last idle symbol number in the subframe p, the number of the last idle symbols indicated by the DCI is taken as Number of symbols B.
  • the data transmission method further includes: in a case where the DCI is not detected, the user equipment receives the predetermined signal transmitted by the base station on the last C symbols in the subframe p of the predetermined frequency band, where C is a non-negative integer.
  • the predetermined signal comprises a synchronization signal and/or a measurement reference signal.
  • the value of C is determined by a predetermined manner, or the foregoing base station notifies the user equipment by signaling.
  • the user equipment When the user equipment performs data reception or transmission in the subframe p of the predetermined frequency band according to the number of free symbols B, if the DCI scheduled data is downlink data, the user equipment is in the pre-L of the subframe p of the predetermined frequency band. Data reception is performed on the B symbols; if the data scheduled by the DCI is uplink data, the user equipment performs data transmission on the first L minus B symbols in the subframe p of the predetermined frequency band; where L is the maximum in the subframe p The number of symbols.
  • the predetermined frequency band includes an unlicensed frequency band.
  • the LTE base station Y detects on the unlicensed frequency band, and if at least T is slightly idle in a certain time period in any subframe p, It indicates that the carrier is currently idle. At this time, it is possible to occupy consecutive N subframes in the subframe p+1 to perform data transmission on the carrier.
  • the base station Y may also be The last part of the time period occupying the unlicensed band resources frees the frequency band, allowing other base stations to perform band detection during this time period. Once the other base stations detect that the frequency band is idle, they can immediately occupy the frequency band for data transmission in the next sub-frame. Otherwise, after the base station Y completes the transmission in the subframe p+N, the other base stations detect that the frequency band is idle in the subframe p+N+1, but the data transmission is started at the fastest time after p+N+2, which is bound to cause the subframe. The waste of p+N+1.
  • FIG. 4 is a schematic diagram of the principle of the data transmission method in the embodiment.
  • the subframe p includes a first time period, a second time period, and a third time period.
  • the base station Y does not schedule data transmission in the first time period of the subframe p, and detects the frequency band idle in the second time period of the subframe p, and then transmits the PSS (Primary sync signal) in the third time period of the subframe p.
  • PSS Primary sync signal
  • N subframes can be Both are downlink subframes, or both uplink subframes, partial downlink subframes, partial uplink subframes, or partial downlink subframes, partial special subframes, or partial downlink subframes, partial special subframes, and partial uplink subframes.
  • the base station Y is idle for a second time period in the subframe p+N. During this time period, all base stations and nodes (LTE, WIFI) that wish to use the unlicensed band can perform spectrum detection, and other base stations and nodes find the frequency band idle.
  • the base station Y has data transmission after the subframe p+N, and further detects the third time period in p+N, and finds that the third time period is still idle, and continues to use the subframe after p+N+1 for data. transmission.
  • FIG. 5 is a schematic diagram of the principle of the data transmission method in the embodiment.
  • the subframe p includes a first time period, a second time period, and a third time period.
  • the base station Y does not schedule data transmission in the first time period of the subframe p, and detects the frequency band space in the second time period of the subframe p, and then transmits the PSS/SSS and the measurement RS on the third time period of the subframe p
  • N subframes for data transmission from the sub-frame p+1, wherein all of the N subframes may be downlink subframes, or all uplink subframes, or partial downlink subframes, partial uplink subframes, or Part of the downlink subframe, part of the special subframe, or part of the downlink subframe, part of the special subframe, and part of the uplink subframe.
  • the base station Y is idle for a second time period in the subframe p+N.
  • all base stations and nodes LTE, WIFI
  • a signal is transmitted in the third period of the subframe p+N to start occupying the frequency band.
  • the base station Y has data to be transmitted after p+N, and further detects a third time period in the subframe p+N.
  • the base station Z has transmitted a signal in the third time period, and the base station Z will be in the subframe.
  • the data transmission is scheduled in consecutive subframes after p+N+1, and the base station Y does not idle in the third time period, and the data transmission is not scheduled in consecutive subframes after the subframe p+N+1.
  • the UE under the base station Y does not receive the base station in the subframe p.
  • the scheduling signaling sent by Y but receiving a specific signal in the third time period of the subframe p, the UE may perform carrier time/frequency synchronization, mobility measurement, channel state information CSI measurement, and the like based on the received specific signal.
  • the UE receives the scheduling signaling sent by the base station Y in the subframe p+N, which indicates that the last B symbols in the subframe p+N are idle, and the length of the B symbols is not less than the second time period and the third time.
  • the UE does not need to detect the specific signal of the base station Y in the third time period in the subframe p+N.
  • the UE under the base station Z does not receive the scheduling signaling sent by the base station Z in the subframe p, and further receives the specific signal (PSS/SSS and measurement RS) in the third time period of the subframe p, and the receiving result finds the base station.
  • Z does not transmit a specific signal in subframe p.
  • the UE receives the subframe p+N again, and also does not receive the scheduling signaling sent by the base station Z, but receives a specific signal in the third time period of the subframe p+N, and the UE can receive the signal based on the reception.
  • the specific signals to be transmitted are carrier time/frequency synchronization, mobility measurement, signal state information CSI measurement, and the like.
  • the above solution of the present invention can not only implement spectrum detection and relinquish on the unlicensed spectrum of the LTE system, but also ensure that multiple LTE systems can work fairly and efficiently on the unlicensed spectrum.
  • two types of base stations are also provided.
  • a base station provided by an embodiment of the present invention includes:
  • the base station detecting module 61 is configured to detect a predetermined frequency band, and determine whether there is idle time of the first time in a predetermined time period in the predetermined frequency band subframe p;
  • the base station processing module 62 is configured to, when the detection result is YES, start data scheduling on consecutive N subframes from the last subframe of the subframe p, and perform data transmission in consecutive N subframes.
  • the last A symbols in the last subframe are set to idle, wherein the total length of time corresponding to the A symbols is not less than the first time, and N and A are both positive integers.
  • the base station further includes: a first sending module (not shown), configured to send downlink control signaling DCI to the user equipment, where the DCI is used to schedule the user equipment to perform data reception or transmission on a predetermined frequency band, where the DCI includes Information indicating whether the last A symbols in the subframe scheduled by the DCI are free or the number of symbols that are last idle.
  • a first sending module (not shown), configured to send downlink control signaling DCI to the user equipment, where the DCI is used to schedule the user equipment to perform data reception or transmission on a predetermined frequency band, where the DCI includes Information indicating whether the last A symbols in the subframe scheduled by the DCI are free or the number of symbols that are last idle.
  • the value of A is determined by a pre-agreed manner, or the foregoing base station notifies the user equipment by signaling.
  • the value of the first time is determined by a predetermined manner or by interaction information between the base stations.
  • the value of the first time when the value of the first time is determined by a pre-agreed manner, the value of the first time may be determined according to a system bandwidth, or determined according to a necessary processing delay of the base station.
  • the predetermined time period is located at the last part of the subframe p.
  • the subframe p includes at least a first time interval, a second time interval, and a third time interval; wherein the first time interval is located at a start position of the subframe p, and the third The time interval is located at the end of the subframe, and the second time interval is before the third time interval and does not overlap with the first time interval, and The time lengths of the second time interval and the third time interval are not less than the first time; and, if the base station processing module 62 does not schedule data for data transmission in the first time interval of the subframe p, the predetermined time period is the second time. Time interval; if the base station processing module 62 schedules data for data transmission in the first time interval of the subframe p, the predetermined time period is the third time interval.
  • the value of the first time interval and/or the second time interval and/or the third time interval is determined by a pre-agreed manner or by interaction information between the base stations.
  • the base station processing module 62 sets the last A symbols of the last subframe of the consecutive N subframes to be idle, the total length of time corresponding to the last A symbols is not less than the second time interval and the third time interval. The sum of the lengths.
  • the base station further includes: a second sending module (not shown), configured to transmit the predetermined frequency band on the predetermined frequency band by using the last C symbols in the third time interval if the predetermined time period is the second time interval Signal, where C is a positive integer.
  • a second sending module (not shown), configured to transmit the predetermined frequency band on the predetermined frequency band by using the last C symbols in the third time interval if the predetermined time period is the second time interval Signal, where C is a positive integer.
  • the predetermined signal comprises a synchronization signal and/or a measurement reference signal.
  • the value of C is determined by a pre-agreed manner, or the foregoing base station notifies the user equipment by signaling.
  • the N subframes include one or more of the following subframes: a downlink subframe, an uplink subframe, and a special subframe.
  • the predetermined frequency band includes an unlicensed frequency band.
  • another base station provided by the embodiment of the present invention includes:
  • the processor 500 is configured to read a program in the memory 520 and perform the following process:
  • the processor 500 is further configured to send downlink control signaling DCI to the user equipment by using the transceiver 510, where the DCI is used to schedule the user equipment to perform data reception or transmission on a predetermined frequency band, where the DCI is included to indicate DCI scheduling. Information on whether the last A symbols in the subframe are free or the number of symbols that are last idle.
  • the value of A is determined by a pre-agreed manner, or the foregoing base station notifies the user equipment by signaling.
  • the value of the first time is determined by a predetermined manner or by interaction information between the base stations.
  • the value of the first time when the value of the first time is determined by a pre-agreed manner, the value of the first time may be determined according to a system bandwidth, or determined according to a necessary processing delay of the base station.
  • the predetermined time period is located at the last part of the subframe p.
  • the subframe p includes at least a first time interval, a second time interval, and a third time interval; wherein the first time interval is located at a start position of the subframe p, and the third The time interval is located at the end of the subframe, the second time interval is before the third time interval and does not overlap with the first time interval, and the time lengths of the second time interval and the third time interval are not less than the first time; If the base station processing module 62 does not schedule data for data transmission in the first time interval of the subframe p, the predetermined time period is the second time interval; if the base station processing module 62 schedules data in the first time interval of the subframe p For data transmission, the predetermined time period is the third time interval.
  • the value of the first time interval and/or the second time interval and/or the third time interval is determined by a pre-agreed manner or by interaction information between the base stations.
  • the processor 500 sets the last A symbols of the last subframe of the consecutive N subframes to be idle, the total length of time corresponding to the last A symbols is not less than the second time interval and the third time interval. The sum of the lengths.
  • the processor 500 is further configured to use the last C symbols in the third time interval to transmit a predetermined signal through the transceiver 510 on the predetermined frequency band, where the predetermined time period is the second time interval, where C is positive Integer.
  • the predetermined signal comprises a synchronization signal and/or a measurement reference signal.
  • the value of C is determined by a pre-agreed manner, or the foregoing base station notifies the user equipment by signaling.
  • the N subframes include one or more of the following subframes: a downlink subframe, an uplink subframe, and a special subframe.
  • the predetermined frequency band includes an unlicensed frequency band.
  • the transceiver 510 is configured to receive and transmit data under the control of the processor 500.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 500 and various circuits of memory represented by memory 520.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • the transceiver 510 can be a plurality of components, including a transmitter and a transceiver, provided for transmission
  • the processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 can store data used by the processor 500 when performing operations.
  • a user equipment provided by an embodiment of the present invention includes:
  • the terminal detection module 71 is configured to detect downlink control signaling DCI sent by the base station, where the DCI is used to schedule the user equipment to receive or transmit data in the subframe p of the predetermined frequency band;
  • the terminal determining module 72 is configured to determine, in the case that the DCI is detected, the last space in the subframe p according to the DCI.
  • the terminal processing module 73 is configured to perform data reception or transmission in the subframe p of the predetermined frequency band according to the number of free symbols B.
  • the terminal determining module 72 further includes: a first determining submodule (not shown), when the DCI includes information indicating whether the last A symbols in the subframe p are idle, if the space is indicated, the A is used as The symbol number B, otherwise zero is used as the symbol number B, where A is a positive integer, and the total length of time corresponding to the last A symbols is not less than the first time.
  • the value of A is determined by a predetermined manner, or the foregoing base station notifies the user equipment by signaling.
  • the value of the first time is determined by a predetermined manner or by interaction information between the base stations.
  • the value of the first time when the value of the first time is determined by a pre-agreed manner, the value of the first time may be determined according to a system bandwidth, or determined according to a necessary processing delay of the base station.
  • the terminal determining module 72 further includes: a second determining submodule (not shown), configured to: when the DCI includes the number of symbols for indicating the last idle in the subframe p, the number of the last idle symbols indicated by the DCI as Number of symbols B.
  • a second determining submodule (not shown), configured to: when the DCI includes the number of symbols for indicating the last idle in the subframe p, the number of the last idle symbols indicated by the DCI as Number of symbols B.
  • the user equipment further includes: a receiving module (not shown), configured to receive a predetermined signal sent by the base station on the last C symbols in the subframe p of the predetermined frequency band, if the DCI is not detected, where C is a non-negative integer.
  • the predetermined signal comprises a synchronization signal and/or a measurement reference signal.
  • the value of C is determined by a predetermined manner, or the foregoing base station notifies the user equipment by signaling.
  • the terminal processing module 73 further includes: a receiving submodule (not shown), configured to perform data on the first L minus B symbols in the subframe p of the predetermined frequency band if the data scheduled by the DCI is downlink data. a receiving submodule (not shown), configured to perform data transmission on the first L minus B symbols in the subframe p of the predetermined frequency band when the data scheduled by the DCI is uplink data; wherein, L is a sub The maximum number of symbols in frame p.
  • the predetermined frequency band includes an unlicensed frequency band.
  • another user equipment provided by the embodiment of the present invention includes:
  • the processor 600 is configured to read a program in the memory 620 and perform the following process:
  • the last free symbol number B in the subframe p is determined, where B is a non-negative integer
  • data reception or transmission is performed by the transceiver 610 in the subframe p of the predetermined frequency band.
  • the processor 600 is further configured to: when the DCI includes information indicating whether the last A symbols in the subframe p are idle, if the space is indicated, A is used as the symbol number B, otherwise zero is used as the symbol number B, Where A is a positive integer, and the total length of time corresponding to the last A symbols is not less than the first time.
  • the value of A is determined by a predetermined manner, or the foregoing base station notifies the user equipment by signaling.
  • the value of the first time is determined by a predetermined manner or by interaction information between the base stations.
  • the value of the first time when the value of the first time is determined by a pre-agreed manner, the value of the first time may be determined according to a system bandwidth, or determined according to a necessary processing delay of the base station.
  • the processor 600 is further configured to: when the DCI includes information indicating the last idle number of symbols in the subframe p, the number of the last idle symbols indicated by the DCI is used as the symbol number B.
  • the processor 600 is further configured to: when the DCI is not detected, receive, by the transceiver 610, a predetermined signal sent by the base station on the last C symbols in the subframe p of the predetermined frequency band, where C is non-negative Integer.
  • the predetermined signal comprises a synchronization signal and/or a measurement reference signal.
  • the value of C is determined by a predetermined manner, or the foregoing base station notifies the user equipment by signaling.
  • the processor 600 is further configured to: when the DCI scheduled data is downlink data, perform data reception by using the transceiver 610 on the first L minus B symbols in the subframe p of the predetermined frequency band; In the case where the data is uplink data, data transmission is performed by the transceiver 610 on the first L minus B symbols in the subframe p of the predetermined frequency band; where L is the maximum number of symbols in the subframe p.
  • the predetermined frequency band includes an unlicensed frequency band.
  • the transceiver 610 is configured to receive and transmit data under the control of the processor 600.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 600 and various circuits of memory represented by memory 620.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 610 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the user interface 630 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 600 is responsible for managing the bus architecture and the usual processing, and the memory 620 can store the processor 600 at The data used to perform the operation.
  • the present invention by means of the above technical solution of the present invention, by detecting a predetermined frequency band, it is determined whether there is time idle in a predetermined time zone in a predetermined frequency band, and if it is detected, determining that the carrier of the predetermined frequency band is in The idle state, so that data can be scheduled for transmission in a plurality of consecutive subframes from the subsequent subframe of the subframe, thereby implementing the LTE system to operate on a predetermined frequency band.
  • the present invention also enables the next base station to perform detection and data scheduling determination according to the idle symbol by setting the last predetermined symbol in the last subframe of the consecutive multiple subframes to be idle, thereby implementing multiple The LTE system works fairly and efficiently on a predetermined frequency band.
  • the objects of the invention can also be achieved by running a program or a set of programs on any computing device.
  • the computing device can be a well-known general purpose device.
  • the object of the present invention can also be achieved by merely providing a program product comprising program code for implementing the method or apparatus. That is to say, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It will be apparent that the storage medium may be any known storage medium or any storage medium developed in the future.
  • a storage medium (which may be a ROM, a RAM, a hard disk, a detachable memory, or the like), in which a computer program for resource allocation is embedded, the computer program having a code segment configured to perform the following steps: detecting a predetermined frequency band, determining whether there is idleness of the first time in a predetermined time period in the predetermined frequency band subframe p; and in the case of the detection result being YES, from the subframe p Starting from the next subframe, data is scheduled to be transmitted on consecutive N subframes, and the last A symbols in the last subframe of the consecutive N subframes are set to idle, where A symbols correspond to The total length of time is not less than the first time, and N and A are both positive integers.
  • a storage medium (which may be a ROM, a RAM, a hard disk, a detachable memory, or the like), in which a computer program for resource allocation is embedded, the computer program having a code segment configured to perform the following steps: detecting a downlink control signaling DCI sent by a base station, where the DCI is used to schedule user equipment to receive or transmit data in a subframe p of a predetermined frequency band; in the case where DCI is detected, according to The DCI determines the last free symbol number B in the subframe p, where B is a non-negative integer; according to the number of free symbols B, data reception or transmission is performed in the subframe p of the predetermined frequency band.
  • a computer program having a code segment configured to perform a resource allocation step of detecting a predetermined frequency band and determining a predetermined one of the predetermined frequency band sub-frames p Whether there is idleness of the first time in the time period; if the detection result is yes, data is scheduled to be transmitted in consecutive N subframes from the next subframe of the subframe p, and the continuous N is The last A symbols in the last subframe of the subframes are set to idle, wherein the total length of time corresponding to the A symbols is not less than the first time, and N and A are both positive integers.
  • a computer program having a code segment configured to perform a resource allocation step of detecting a downlink control signaling DCI transmitted by a base station, the DCI being used to schedule a user equipment to be scheduled Data reception or transmission is performed in subframe p of the frequency band; in the case where DCI is detected, the last free symbol number B in subframe p is determined according to DCI, where B is a non-negative integer; according to the number of free symbols B, Data reception or transmission is performed in the subframe p of the predetermined frequency band.
  • a program constituting the software is installed from a storage medium or a network to a computer having a dedicated hardware structure, such as the general-purpose computer 800 shown in FIG.
  • a computer having a dedicated hardware structure such as the general-purpose computer 800 shown in FIG.
  • a central processing module (CPU) 801 executes various processes in accordance with a program stored in a read only memory (ROM) 802 or a program loaded from a storage portion 808 to a random access memory (RAM) 803.
  • ROM read only memory
  • RAM random access memory
  • data required when the CPU 801 executes various processes and the like is also stored as needed.
  • the CPU 801, the ROM 802, and the RAM 803 are connected to each other via a bus 804.
  • Input/output interface 805 is also coupled to bus 804.
  • the following components are connected to the input/output interface 805: an input portion 806 including a keyboard, a mouse, etc.; an output portion 807 including a display such as a cathode ray tube (CRT), a liquid crystal display (LCD), and the like, and a speaker and the like;
  • the storage portion 808 includes a hard disk or the like; and the communication portion 809 includes a network interface card such as a LAN card, a modem, and the like.
  • the communication section 809 performs communication processing via a network such as the Internet.
  • the driver 810 is also connected to the input/output interface 805 as needed.
  • a removable medium 811 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory or the like is mounted on the drive 810 as needed, so that a computer program read therefrom is installed into the storage portion 808 as needed.
  • a program constituting the software is installed from a network such as the Internet or a storage medium such as the removable medium 811.
  • such a storage medium is not limited to the removable medium 811 shown in FIG. 10 in which a program is stored and distributed separately from the device to provide a program to the user.
  • Examples of the detachable medium 811 include a magnetic disk (including a floppy disk (registered trademark)), an optical disk (including a compact disk read only memory (CD-ROM) and a digital versatile disk (DVD)), and a magneto-optical disk (including a mini disk (MD) (registered trademark) )) and semiconductor memory.
  • the storage medium may be a ROM 802, a hard disk included in the storage portion 808, etc., in which programs are stored, and distributed to the user together with the device containing them.

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Abstract

本发明公开了一种数据传输方法,一方面,该方法包括:基站对预定频带进行检测,确定预定频带子帧p中预定时间段内是否存在第一时间的空闲;在检测结果为是的情况下,基站自子帧p的后一子帧开始,在连续的N个子帧上调度数据进行数据传输,并且,将连续的N个子帧中的最后一子帧中的最后A个符号设置为空闲,其中,N和A均为正整数;另一方面,该方法包括:用户设备检测基站发送的下行控制信令DCI,DCI用于调度用户设备在预定频带的子帧p中进行数据接收或发送;在检测到DCI的情况下,用户设备根据DCI,确定子帧p中最后空闲的符号数B,其中,B为非负整数;用户设备根据空闲的符号数B,在预定频带的子帧p中进行数据接收或发送。

Description

数据传输方法、基站以及用户设备
本申请要求在2014年1月16日提交中国专利局、申请号为201410020995.8,发明名称为“数据传输方法、基站以及终端设备”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
本发明涉及移动通信技术领域,具体来说,涉及一种数据传输方法、基站以及用户设备(User Equipment,UE)。
背景技术
1、LTE(Long Term Evolution,长期演进)系统
LTE系统支持FDD(Frequency Division Duplexing,频分双工)和TDD(Time Division Duplexing,时分双工)两种双工方式,两种双工模式使用不同的帧结构。两种帧结构的共同点是每个无线帧由10个1ms子帧组成。其中,FDD系统使用第一类帧结构,TDD系统使用第二类帧结构。在第一类帧结构中,一个无线帧中的10子帧传输方向相同,都为上行或下行。在第二类帧结构中,每个无线帧中包含三种不同的子帧:下行子帧、上行子帧和特殊子帧。其中,特殊子帧由三部分组成,即下行导频时隙DwPTS、保护间隔GP、上行导频时隙UpPTS。
对于常规CP(Cyclic Prefix,循环前缀),一个子帧中包含14个符号,下行对应为OFDM(Orthogonal Frequency Division Multiplexing,正交频分复用)符号,上行对应为SC-FDMA(Single-carrier Frequency-Division Multiple Access,单载波频分多址)符号。对于扩展CP,一个子帧中包含12个符号。
2、频谱资源
现有频谱资源可以分为授权频谱和非授权频谱。其中,授权频谱为划分好的专用频谱,LTE运营商具有专门的授权频段,不同的运营商有不同的授权频段,不会存在来自于其它LTE运营商的干扰。而非授权频谱为共享的频谱资源,没有进行专门的规划,多种系统都可共享非授权频段上的资源。
目前,随着移动数据业务量的不断增长,频谱资源越来越紧张,仅使用授权频谱资源进行网络部署和业务传输可能已经不能满足业务量需求,因此LTE系统可以考虑在非授权频谱资源上部署传输(Unlicensed LTE,简称为U-LTE或者LTE-U),以提高用户体验和扩展覆盖。然而,目前LTE系统如何在非授权频谱资源上工作、以及多个LTE系统如何公平、友好的抢占非授权频带,同时高效的使用非授权频带上的资源还没有明确的方法。
发明内容
针对相关技术中的上述技术问题,本发明提出一种数据传输方法以及基站和用户设备。
为了实现上述目的,根据本发明的一个方面,提供了一种数据传输方法。
该数据传输方法包括:基站对预定频带进行检测,确定预定频带子帧p中预定时间段内是否存在第一时间的空闲;在检测结果为是的情况下,基站自子帧p的后一子帧开始,在连续的N个子帧上调度数据进行数据传输,并且,将连续的N个子帧中的最后一子帧中的最后A个符号设置为空闲,其中,A个符号所对应的时间总长度不小于第一时间,且N和A均为正整数。
此外,该数据传输方法还包括:基站向用户设备发送下行控制信令DCI,DCI用于调度用户设备在预定频带上进行数据接收或发送,其中,DCI中包含用于指示DCI调度的子帧中最后A个符号是否空闲、或最后空闲的符号数量的信息。
其中,A的取值通过预先约定的方式确定、或者上述基站通过信令通知用户设备。
其中,第一时间的取值通过预先约定的方式确定、或者基站之间交互信息来确定。
可选地,当第一时间的取值通过预先约定的方式确定时,第一时间的取值可以根据系统带宽确定、或者根据基站必要的处理延时确定。
可选地,一方面,在预定频带中,预定时间段位于子帧p的最后部分。
可选地,另一方面,在预定频带中,子帧p至少包括第一时间区间、第二时间区间和第三时间区间;其中,第一时间区间位于子帧p的起始位置,第三时间区间位于子帧的末尾位置,第二时间区间位于第三时间区间之前且不与第一时间区间重叠,并且,第二时间区间和第三时间区间的时间长度均不小于第一时间;并且,若基站在子帧p的第一时间区间内未调度数据进行数据传输,则预定时间段为第二时间区间;若基站在子帧p的第一时间区间内调度数据进行数据传输,则预定时间段为第三时间区间。
其中,第一时间区间和/或第二时间区间和/或第三时间区间的取值通过预先约定的方式确定、或者通过基站之间交互信息来确定。
其中,在基站将连续的N个子帧中的最后一子帧中的最后A个符号设置为空闲时,最后A个符号所对应的时间总长度不小于第二时间区间与第三时间区间的长度之和。
此外,该数据传输方法还包括:在预定时间段为第二时间区间的情况下,基站利用第三时间区间内的最后C个符号,在预定频带上发送预定信号,其中,C为正整数。
其中,预定信号包括同步信号和/或测量参考信号。
其中,C的取值通过预先约定的方式确定、或者上述基站通过信令通知用户设备。
在上述方案中,N个子帧包括以下子帧中的一种或多种:下行子帧、上行子帧、特殊子帧。
在上述方案中,预定频带包括非授权频带。
根据本发明的另一方面,提供了一种数据传输方法。
该数据传输方法包括:用户设备检测基站发送的下行控制信令DCI,其中,DCI用于调度用户设备在预定频带的子帧p中进行数据接收或发送;在检测到DCI的情况下,用户设备根据DCI,确定子帧p中最后空闲的符号数B,其中,B为非负整数;用户设备根据空闲的符号数B,在预定频带的子帧p中进行数据接收或发送。
其中,在用户设备根据DCI,确定子帧p中最后空闲的符号数B时,若DCI中包括用于指示子帧p中最后A个符号是否空闲的信息时,且指示空闲,则将A作为符号数B,否则将零作为符号数B,其中,A为正整数,并且,最后A个符号所对应的时间总长度不小于第一时间。
可选地,A的取值通过预先约定的方式确定、或者上述基站通过信令通知上述用户设备。
可选地,第一时间的取值通过预先约定的方式确定、或者基站之间交互信息来确定。
可选地,当第一时间的取值通过预先约定的方式确定时,第一时间的取值可以根据系统带宽确定、或者根据基站必要的处理延时确定。
此外,在用户设备根据DCI,确定子帧p中最后空闲的符号数B时,若DCI包括用于指示子帧p中最后空闲的符号数量信息时,则将DCI指示的最后空闲的符号数量作为符号数B。
另外,该数据传输方法还包括:在未检测到DCI的情况下,用户设备在预定频带的子帧p中的最后C个符号上接收基站发送的预定信号,其中,C为非负整数。
其中,预定信号包括同步信号和/或测量参考信号。
其中,C的取值通过预先约定的方式确定、或者上述基站通过信令通知上述用户设备。
其中,在用户设备根据空闲的符号数B,在预定频带的子帧p中进行数据接收或发送时,若DCI调度的数据为下行数据,则用户设备在预定频带的子帧p中的前L减B个符号上进行数据接收;若DCI调度的数据为上行数据,则用户设备在预定频带的子帧p中的前L减B个符号上进行数据发送;其中,L为子帧p中最大的符号数量。
在上述方案中,预定频带包括非授权频带。
根据本发明的又一方面,提供了一种基站。
该基站包括:基站检测模块,用于对预定频带进行检测,确定预定频带子帧p中 预定时间段内是否存在第一时间的空闲;基站处理模块,用于在检测结果为是的情况下,自子帧p的最后一子帧开始,在连续的N个子帧上调度数据进行数据传输,并且,将连续的N个子帧中的最后一子帧中的最后A个符号设置为空闲,其中,A个符号所对应的时间总长度不小于第一时间,且N和A均为正整数。
此外,该基站还包括:第一发送模块,用于向用户设备发送下行控制信令DCI,DCI用于调度用户设备在预定频带上进行数据接收或发送,其中,DCI中包含用于指示DCI调度的子帧中最后A个符号是否空闲、或最后空闲的符号数量的信息。
其中,A的取值通过预先约定的方式确定、或者上述基站通过信令通知用户设备。
其中,第一时间的取值通过预先约定的方式确定、或者基站之间交互信息来确定。
可选地,当第一时间的取值通过预先约定的方式确定时,第一时间的取值可以根据系统带宽确定、或者根据基站必要的处理延时确定。
可选地,一方面,在预定频带中,预定时间段位于子帧p的最后部分。
可选地,另一方面,在预定频带中,子帧p至少包第一时间区间、第二时间区间和第三时间区间;其中,第一时间区间位于子帧p的起始位置,第三时间区间位于子帧的末尾位置,第二时间区间位于第三时间区间之前且不与第一时间区间重叠,并且,第二时间区间和第三时间区间的时间长度均不小于第一时间;并且,若基站处理模块在子帧p的第一时间区间内未调度数据进行数据传输,则预定时间段为第二时间区间;若基站处理模块在子帧p的第一时间区间内调度数据进行数据传输,则预定时间段为第三时间区间。
其中,第一时间区间和/或第二时间区间和/或第三时间区间的取值通过预先约定的方式确定、或者通过基站之间交互信息来确定。
其中,在基站处理模块将连续的N个子帧中的最后一子帧的最后A个符号设置为空闲时,最后A个符号所对应的时间总长度不小于第二时间区间与第三时间区间的长度之和。
另外,该基站还包括:第二发送模块,用于在预定时间段为第二时间区间的情况下,利用第三时间区间内的最后C个符号,在预定频带上发送预定信号,其中,C为正整数。
其中,预定信号包括同步信号和/或测量参考信号。
其中,C的取值通过预先约定的方式确定、或者上述基站通过信令通知用户设备。
在上述方案中,N个子帧包括以下子帧中的一种或多种:下行子帧、上行子帧、特殊子帧。
在上述方案中,预定频带包括非授权频带。
根据本发明的再一方面,提供了一种用户设备。
该用户设备包括:终端检测模块,用于检测基站发送的下行控制信令DCI,其中,DCI用于调度用户设备在预定频带的子帧p中进行数据接收或发送;终端确定模块,用于在检测到DCI的情况下,根据DCI,确定子帧p中最后空闲的符号数B,其中,B为非负整数;终端处理模块,用于根据空闲的符号数B,在预定频带的子帧p中进行数据接收或发送。
其中,终端确定模块进一步包括:第一确定子模块,用于在DCI包括用于指示子帧p中最后A个符号是否空闲的信息时,若指示空间,则将A作为符号数B,否则将零作为符号数B,其中,A为正整数,并且,最后A个符号所对应的时间总长度不小于第一时间。
其中,A的取值通过预先约定的方式确定、或者上述基站通过信令通知上述用户设备。
其中,第一时间的取值通过预先约定的方式确定、或者基站之间交互信息来确定。
可选地,当第一时间的取值通过预先约定的方式确定时,第一时间的取值可以根据系统带宽确定、或者根据基站必要的处理延时确定。
此外,终端确定模块还包括:第二确定子模块,用于在DCI包括用于指示子帧p中最后空闲的符号数量信息时,将DCI指示的最后空闲的符号数量作为符号数B。
另外,该用户设备还包括:接收模块,用于在未检测到DCI的情况下,在预定频带的子帧p中的最后C个符号上接收基站发送的预定信号,其中,C为非负整数。
其中,预定信号包括同步信号和/或测量参考信号。
其中,C的取值通过预先约定的方式确定、或者上述基站通过信令通知上述用户设备。
其中,终端处理模块进一步包括:接收子模块,用于在DCI调度的数据为下行数据的情况下,在预定频带的子帧p中的前L减B个符号上进行数据接收;发送子模块,用于在DCI调度的数据为上行数据的情况下,在预定频带的子帧p中的前L减B个符号上进行数据发送;其中,L为子帧p中最大的符号数量。
在上述方案中,预定频带包括非授权频带。
本发明通过对预定频带进行检测,确定预定频带中是否有子帧的预定时间内存在时间空闲,如果检测出有,则判断该预定频带的载波处于空闲状态,从而可以自该子帧的后一子帧开始,在连续的多个子帧上调度数据进行数据传输,进而实现了LTE系统在预定频带上进行工作。另外,本发明还通过将连续的多个子帧的最后一子帧中的最后预定个符号设置为空闲,从而使得下一基站能够根据该空闲符号进行检测以及数据调度的判断,进而实现了多个LTE系统在预定频带上的公平、高效的工作。
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是本发明实施例提供的数据传输方法的流程示意图;
图2是本发明实施例提供的另一数据传输方法的流程示意图;
图3是本发明一实施例提供的数据传输方法的原理示意图;
图4是本发明另一实施例提供的数据传输方法的原理示意图;
图5是本发明又一实施例提供的数据传输方法的原理示意图;
图6是本发明实施例提供的一种基站的结构框图;
图7是本发明实施例提供的另一种基站的结构框图;
图8是本发明实施例提供的一种用户设备的结构框图;
图9是本发明实施例提供的另一种用户设备的结构框图;
图10是实现本发明技术方案的计算机的示例性结构框图。
具体实施方式
在下文中将结合附图对本发明的示范性实施例进行描述。为了清楚和简明起见,在说明书中并未描述实际实施方式的所有特征。然而,应该了解,在开发任何这种实际实施例的过程中必须做出很多特定于实施方式的决定,以便实现开发人员的具体目标,例如,符合与系统及业务相关的那些限制条件,并且这些限制条件可能会随着实施方式的不同而有所改变。此外,还应该了解,虽然开发工作有可能是非常复杂和费时的,但对得益于本公开内容的本领域技术人员来说,这种开发工作仅仅是例行的任务。
在此,还需要说明的一点是,为了避免因不必要的细节而模糊了本发明,在附图中仅仅示出了与根据本发明的方案密切相关的装置结构和/或处理步骤,而省略了与本发明关系不大的其他细节。
根据本发明的实施例,提供了一种数据传输方法。
如图1所示,本发明实施例提供的数据传输方法包括:
步骤S101,基站对预定频带进行检测,确定预定频带子帧p中预定时间段内是否存在第一时间的空闲;
步骤S103,在检测结果为是的情况下,基站自子帧p的后一子帧开始,在连续的N个子帧上调度数据进行数据传输,并且,将连续的N个子帧中的最后一子帧中的最 后A个符号设置为空闲,其中,A个符号所对应的时间总长度不小于第一时间,且N和A均为正整数。
此外,该数据传输方法还包括:基站向用户设备发送下行控制信令DCI,DCI用于调度用户设备在预定频带上进行数据接收或发送,其中,DCI中包含用于指示DCI调度的子帧中最后A个符号是否空闲、或最后空闲的符号数量的信息。
其中,A的取值通过预先约定的方式确定、或者上述基站通过信令通知用户设备。
其中,第一时间的取值通过预先约定的方式确定、或者基站之间交互信息来确定。
可选地,当第一时间的取值通过预先约定的方式确定时,第一时间的取值可以根据系统带宽确定、或者根据基站必要的处理延时确定。
可选地,一方面,在预定频带中,预定时间段位于子帧p的最后部分。
可选地,另一方面,在预定频带中,子帧p至少包括第一时间区间、第二时间区间和第三时间区间;其中,第一时间区间位于子帧p的起始位置,第三时间区间位于子帧的末尾位置,第二时间区间位于第三时间区间之前且不与第一时间区间重叠,并且,第二时间区间和第三时间区间的时间长度均不小于第一时间;并且,若基站在子帧p的第一时间区间内未调度数据进行数据传输,则预定时间段为第二时间区间;若基站在子帧p的第一时间区间内调度数据进行数据传输,则预定时间段为第三时间区间。
其中,第一时间区间和/或第二时间区间和/或第三时间区间的取值通过预先约定的方式确定、或者通过基站之间交互信息来确定。
其中,在基站将连续的N个子帧中的最后一子帧中的最后A个符号设置为空闲时,最后A个符号所对应的时间总长度不小于第二时间区间与第三时间区间的长度之和。
此外,该数据传输方法还包括:在预定时间段为第二时间区间的情况下,基站利用第三时间区间内的最后C个符号,在预定频带上发送预定信号,其中,C为正整数。
其中,预定信号包括同步信号和/或测量参考信号。
其中,C的取值通过预先约定的方式确定、或者上述基站通过信令通知用户设备。
在上述方案中,N个子帧包括以下子帧中的一种或多种:下行子帧、上行子帧、特殊子帧。
在上述方案中,预定频带包括非授权频带。
根据本发明的实施例,提供了一种数据传输方法。
如图2所示,本发明实施例提供的数据传输方法包括:
步骤S201,用户设备检测基站发送的下行控制信令DCI,其中,DCI用于调度用户设备在预定频带的子帧p中进行数据接收或发送;
步骤S203,在检测到DCI的情况下,用户设备根据DCI,确定子帧p中最后空闲 的符号数B,其中,B为非负整数;
步骤S205,用户设备根据空闲的符号数B,在预定频带的子帧p中进行数据接收或发送。
其中,在用户设备根据DCI,确定子帧p中最后空闲的符号数B时,若DCI中包括用于指示子帧p中最后A个符号是否空闲的信息时,且指示空闲,则将A作为符号数B,否则将零作为符号数B,其中,A为正整数,并且,最后A个符号所对应的时间总长度不小于第一时间。
其中,A的取值通过预先约定的方式确定、或者上述基站通过信令通知上述用户设备。
其中,第一时间的取值通过预先约定的方式确定、或者基站之间交互信息来确定。
可选地,当第一时间的取值通过预先约定的方式确定时,第一时间的取值可以根据系统带宽确定、或者根据基站必要的处理延时确定。
此外,在用户设备根据DCI,确定子帧p中最后空闲的符号数B时,若DCI包括用于指示子帧p中最后空闲的符号数量信息时,则将DCI指示的最后空闲的符号数量作为符号数B。
另外,该数据传输方法还包括:在未检测到DCI的情况下,用户设备在预定频带的子帧p中的最后C个符号上接收基站发送的预定信号,其中,C为非负整数。
其中,预定信号包括同步信号和/或测量参考信号。
其中,C的取值通过预先约定的方式确定、或者上述基站通过信令通知上述用户设备。
其中,在用户设备根据空闲的符号数B,在预定频带的子帧p中进行数据接收或发送时,若DCI调度的数据为下行数据,则用户设备在预定频带的子帧p中的前L减B个符号上进行数据接收;若DCI调度的数据为上行数据,则用户设备在预定频带的子帧p中的前L减B个符号上进行数据发送;其中,L为子帧p中最大的符号数量。
在上述方案中,预定频带包括非授权频带。
为了方便理解本发明的上述技术方案,下面以预定频带为非授权频带为例,从具体实例的角度,对本发明的上述技术方案进行说明。
实施例一
图3是该实施例中数据传输方法的原理示意图,从图3中可以看出,LTE基站Y在非授权频带上检测,若发现任意子帧p中的特定时间段内至少T微妙空闲,则说明该载波当前空闲,此时,就可以在子帧p+1开始占用连续的N个子帧在该载波进行数据传输。
而为了实现多个LTE基站公平且高效的使用非授权频带资源,还可以将基站Y在 占用非授权频带资源的时间段的最后部分将频带空闲出来,让其他基站能够在这个时间段进行频带检测,其他基站一旦检测到频带空闲后就能够立刻在下一个子帧开始占用该频带进行数据传输,否则基站Y在子帧p+N完成传输后,其他基站在子帧p+N+1检测到频带空闲,但最快也要等到p+N+2才能开始数据传输,势必会造成子帧p+N+1的浪费。
实施例二
图4是该实施例中数据传输方法的原理示意图,从图4中可以看出,子帧p中包括第一时间段、第二时间段、第三时间段。基站Y未在子帧p的第一时间段内调度数据传输,且在子帧p的第二时间段检测到频带空闲,随后在子帧p的第三时间段上发送PSS(Primary sync signal,主同步信号)/SSS(supplement sync signal,辅同步信号)和测量RS(Reference signal,参考信号),并自子帧p+1开始连续调度N个子帧进行数据传输,其中,N个子帧中可以都为下行子帧,或都为上行子帧,或部分下行子帧、部分上行子帧,或部分下行子帧、部分特殊子帧,或部分下行子帧、部分特殊子帧、部分上行子帧。基站Y在子帧p+N中空闲第二时间段,在该时间段内,所有希望使用非授权频带的基站、节点(LTE、WIFI)都可以进行频谱检测,其他基站、节点在发现频带空闲后,会在子帧p+N的第三时间段发送特定信号,开始占用该频带。基站Y在子帧p+N之后还有数据发送,则进一步的检测p+N中的第三时间段,发现第三时间段仍然空闲,则继续使用p+N+1之后的子帧进行数据传输。
实施例三
图5是该实施例中的数据传输方法的原理示意图,从图5中可以看出,子帧p中包括第一时间段、第二时间段、第三时间段。基站Y未在子帧p的第一时间段内调度数据传输,且在子帧p的第二时间段检测到频带空间,随后在子帧p的第三时间段上发送PSS/SSS和测量RS,并自子帧p+1开始连续调度N个子帧进行数据传输,其中,N个子帧中可以都为下行子帧,或都为上行子帧,或部分下行子帧、部分上行子帧,或部分下行子帧、部分特殊子帧,或部分下行子帧、部分特殊子帧、部分上行子帧。基站Y在子帧p+N中空闲第二时间段,在该时间段内,所有希望使用非授权频带的基站、节点(LTE、WIFI)都可以进行频谱检测,其他基站、节点在发现频带空闲后,会在子帧p+N的第三时间段发送信号,开始占用该频带。基站Y在自p+N之后还有数据需要发送,进一步的检测子帧p+N中的第三时间段,此时,基站Z已经在该第三时间段发送信号,基站Z将在子帧p+N+1之后的连续子帧中调度数据传输,基站Y在第三时间段检测结果为非空闲,则不在子帧p+N+1之后的连续子帧调度数据传输。
实施例四
继续参照上述图5,从图5中可以看出,基站Y下的UE,在子帧p中未收到基站 Y发送的调度信令,但在子帧p的第三时间段内接收到特定信号,该UE可基于接收到的特定信号进行载波时/频同步、移动性测量、信道状态信息CSI测量等。后续,该UE在子帧p+N收到基站Y发送的调度信令,其指示子帧p+N中最后B个符号空闲,B个符号的时间长度不小于第二时间段和第三时间段之后(图中为相等的例子),则该UE不需要在子帧p+N中的第三时间段检测基站Y的特定信号。
基站Z下的UE,在子帧p中未收到基站Z发送的调度信令,进一步地在子帧p的第三时间段内接收特定信号(PSS/SSS和测量RS),接收结果发现基站Z在子帧p没有发送特定信号。后续,该UE又在子帧p+N中进行接收,同样未收到基站Z发送的调度信令,但在子帧p+N的第三时间段内接收到特定信号,该UE可基于接收到的特定信号进行载波时/频同步、移动性测量、信号状态信息CSI测量等。
由此可见,通过本发明的上述方案,不仅能够实现LTE系统在非授权频谱上进行频谱检测以及退让,而且还能够保证多个LTE系统在非授权频谱上能够公平、高效的工作。
此外,根据本发明的实施例,还提供了两种基站。
如图6所示,本发明实施例提供的一种基站包括:
基站检测模块61,用于对预定频带进行检测,确定预定频带子帧p中预定时间段内是否存在第一时间的空闲;
基站处理模块62,用于在检测结果为是的情况下,自子帧p的最后一子帧开始,在连续的N个子帧上调度数据进行数据传输,并且,将连续的N个子帧中的最后一子帧中的最后A个符号设置为空闲,其中,A个符号所对应的时间总长度不小于第一时间,且N和A均为正整数。
此外,该基站还包括:第一发送模块(未示出),用于向用户设备发送下行控制信令DCI,DCI用于调度用户设备在预定频带上进行数据接收或发送,其中,DCI中包含用于指示DCI调度的子帧中最后A个符号是否空闲、或最后空闲的符号数量的信息。
其中,A的取值通过预先约定的方式确定、或者上述基站通过信令通知用户设备。
其中,第一时间的取值通过预先约定的方式确定、或者基站之间交互信息来确定。
可选地,当第一时间的取值通过预先约定的方式确定时,第一时间的取值可以根据系统带宽确定、或者根据基站必要的处理延时确定。
可选地,一方面,在预定频带中,预定时间段位于子帧p的最后部分。
可选地,另一方面,在预定频带中,子帧p至少包第一时间区间、第二时间区间和第三时间区间;其中,第一时间区间位于子帧p的起始位置,第三时间区间位于子帧的末尾位置,第二时间区间位于第三时间区间之前且不与第一时间区间重叠,并且, 第二时间区间和第三时间区间的时间长度均不小于第一时间;并且,若基站处理模块62在子帧p的第一时间区间内未调度数据进行数据传输,则预定时间段为第二时间区间;若基站处理模块62在子帧p的第一时间区间内调度数据进行数据传输,则预定时间段为第三时间区间。
其中,第一时间区间和/或第二时间区间和/或第三时间区间的取值通过预先约定的方式确定、或者通过基站之间交互信息来确定。
其中,在基站处理模块62将连续的N个子帧中的最后一子帧的最后A个符号设置为空闲时,最后A个符号所对应的时间总长度不小于第二时间区间与第三时间区间的长度之和。
另外,该基站还包括:第二发送模块(未示出),用于在预定时间段为第二时间区间的情况下,利用第三时间区间内的最后C个符号,在预定频带上发送预定信号,其中,C为正整数。
其中,预定信号包括同步信号和/或测量参考信号。
其中,C的取值通过预先约定的方式确定、或者上述基站通过信令通知用户设备。
在上述方案中,N个子帧包括以下子帧中的一种或多种:下行子帧、上行子帧、特殊子帧。
在上述方案中,预定频带包括非授权频带。
如图7所示,本发明实施例提供的另一种基站包括:
处理器500,用于读取存储器520中的程序,执行下列过程:
对预定频带进行检测,确定预定频带子帧p中预定时间段内是否存在第一时间的空闲;
在检测结果为是的情况下,自子帧p的最后一子帧开始,在连续的N个子帧上调度数据进行数据传输,并且,将连续的N个子帧中的最后一子帧中的最后A个符号设置为空闲,其中,A个符号所对应的时间总长度不小于第一时间,且N和A均为正整数。
此外,处理器500,还用于通过通过收发机510向用户设备发送下行控制信令DCI,DCI用于调度用户设备在预定频带上进行数据接收或发送,其中,DCI中包含用于指示DCI调度的子帧中最后A个符号是否空闲、或最后空闲的符号数量的信息。
其中,A的取值通过预先约定的方式确定、或者上述基站通过信令通知用户设备。
其中,第一时间的取值通过预先约定的方式确定、或者基站之间交互信息来确定。
可选地,当第一时间的取值通过预先约定的方式确定时,第一时间的取值可以根据系统带宽确定、或者根据基站必要的处理延时确定。
可选地,一方面,在预定频带中,预定时间段位于子帧p的最后部分。
可选地,另一方面,在预定频带中,子帧p至少包第一时间区间、第二时间区间和第三时间区间;其中,第一时间区间位于子帧p的起始位置,第三时间区间位于子帧的末尾位置,第二时间区间位于第三时间区间之前且不与第一时间区间重叠,并且,第二时间区间和第三时间区间的时间长度均不小于第一时间;并且,若基站处理模块62在子帧p的第一时间区间内未调度数据进行数据传输,则预定时间段为第二时间区间;若基站处理模块62在子帧p的第一时间区间内调度数据进行数据传输,则预定时间段为第三时间区间。
其中,第一时间区间和/或第二时间区间和/或第三时间区间的取值通过预先约定的方式确定、或者通过基站之间交互信息来确定。
其中,在处理器500将连续的N个子帧中的最后一子帧的最后A个符号设置为空闲时,最后A个符号所对应的时间总长度不小于第二时间区间与第三时间区间的长度之和。
另外,处理器500还用于在预定时间段为第二时间区间的情况下,利用第三时间区间内的最后C个符号,在预定频带上通过收发机510发送预定信号,其中,C为正整数。
其中,预定信号包括同步信号和/或测量参考信号。
其中,C的取值通过预先约定的方式确定、或者上述基站通过信令通知用户设备。
在上述方案中,N个子帧包括以下子帧中的一种或多种:下行子帧、上行子帧、特殊子帧。
在上述方案中,预定频带包括非授权频带。
收发机510,用于在处理器500的控制下接收和发送数据。
其中,在图7中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器500代表的一个或多个处理器和存储器520代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机510可以是多个元件,即包括发送机和收发机,提供用于在传
输介质上与各种其他装置通信的单元。处理器500负责管理总线架构和通常的处理,存储器520可以存储处理器500在执行操作时所使用的数据。
另外,根据本发明的实施例,还提供了两种用户设备。
如图8所示,本发明实施例提供的一种用户设备包括:
终端检测模块71,用于检测基站发送的下行控制信令DCI,其中,DCI用于调度用户设备在预定频带的子帧p中进行数据接收或发送;
终端确定模块72,用于在检测到DCI的情况下,根据DCI,确定子帧p中最后空 闲的符号数B,其中,B为非负整数;
终端处理模块73,用于根据空闲的符号数B,在预定频带的子帧p中进行数据接收或发送。
其中,终端确定模块72进一步包括:第一确定子模块(未示出),用于在DCI包括用于指示子帧p中最后A个符号是否空闲的信息时,若指示空间,则将A作为符号数B,否则将零作为符号数B,其中,A为正整数,并且,最后A个符号所对应的时间总长度不小于第一时间。
其中,A的取值通过预先约定的方式确定、或者上述基站通过信令通知上述用户设备。
其中,第一时间的取值通过预先约定的方式确定、或者基站之间交互信息来确定。
可选地,当第一时间的取值通过预先约定的方式确定时,第一时间的取值可以根据系统带宽确定、或者根据基站必要的处理延时确定。
此外,终端确定模块72还包括:第二确定子模块(未示出),用于在DCI包括用于指示子帧p中最后空闲的符号数量信息时,将DCI指示的最后空闲的符号数量作为符号数B。
另外,该用户设备还包括:接收模块(未示出),用于在未检测到DCI的情况下,在预定频带的子帧p中的最后C个符号上接收基站发送的预定信号,其中,C为非负整数。
其中,预定信号包括同步信号和/或测量参考信号。
其中,C的取值通过预先约定的方式确定、或者上述基站通过信令通知上述用户设备。
其中,终端处理模块73进一步包括:接收子模块(未示出),用于在DCI调度的数据为下行数据的情况下,在预定频带的子帧p中的前L减B个符号上进行数据接收;发送子模块(未示出),用于在DCI调度的数据为上行数据的情况下,在预定频带的子帧p中的前L减B个符号上进行数据发送;其中,L为子帧p中最大的符号数量。
在上述方案中,预定频带包括非授权频带。
如图9所示,本发明实施例提供的另一种用户设备包括:
处理器600,用于读取存储器620中的程序,执行下列过程:
检测基站发送的下行控制信令DCI,其中,DCI用于调度用户设备在预定频带的子帧p中进行数据接收或发送;
在检测到DCI的情况下,根据DCI,确定子帧p中最后空闲的符号数B,其中,B为非负整数;
根据空闲的符号数B,在预定频带的子帧p中通过收发机610进行数据接收或发送。
其中,处理器600进一步还用于:在DCI包括用于指示子帧p中最后A个符号是否空闲的信息时,若指示空间,则将A作为符号数B,否则将零作为符号数B,其中,A为正整数,并且,最后A个符号所对应的时间总长度不小于第一时间。
其中,A的取值通过预先约定的方式确定、或者上述基站通过信令通知上述用户设备。
其中,第一时间的取值通过预先约定的方式确定、或者基站之间交互信息来确定。
可选地,当第一时间的取值通过预先约定的方式确定时,第一时间的取值可以根据系统带宽确定、或者根据基站必要的处理延时确定。
此外,处理器600进一步还用于:在DCI包括用于指示子帧p中最后空闲的符号数量信息时,将DCI指示的最后空闲的符号数量作为符号数B。
另外,处理器600进一步还用于:在未检测到DCI的情况下,在预定频带的子帧p中的最后C个符号上通过收发机610接收基站发送的预定信号,其中,C为非负整数。
其中,预定信号包括同步信号和/或测量参考信号。
其中,C的取值通过预先约定的方式确定、或者上述基站通过信令通知上述用户设备。
其中,处理器600进一步还用于:在DCI调度的数据为下行数据的情况下,在预定频带的子帧p中的前L减B个符号上通过收发机610进行数据接收;在DCI调度的数据为上行数据的情况下,在预定频带的子帧p中的前L减B个符号上通过收发机610进行数据发送;其中,L为子帧p中最大的符号数量。
在上述方案中,预定频带包括非授权频带。
收发机610,用于在处理器600的控制下接收和发送数据。
其中,在图9中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器600代表的一个或多个处理器和存储器620代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机610可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,用户接口630还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器600负责管理总线架构和通常的处理,存储器620可以存储处理器600在 执行操作时所使用的数据。
综上所述,借助于本发明的上述技术方案,通过对预定频带进行检测,确定预定频带中是否有子帧的预定时间内存在时间空闲,如果检测出有,则判断该预定频带的载波处于空闲状态,从而可以自该子帧的后一子帧开始,在连续的多个子帧上调度数据进行数据传输,进而实现了LTE系统在预定频带上进行工作。另外,本发明还通过将连续的多个子帧的最后一子帧中的最后预定个符号设置为空闲,从而使得下一基站能够根据该空闲符号进行检测以及数据调度的判断,进而实现了多个LTE系统在预定频带上的公平、高效的工作。
以上结合具体实施例描述了本发明的基本原理,但是,需要指出的是,对本领域的普通技术人员而言,能够理解本发明的方法和装置的全部或者任何步骤或者部件,可以在任何计算装置(包括处理器、存储介质等)或者计算装置的网络中,以硬件、固件、软件或者它们的组合加以实现,这是本领域普通技术人员在阅读了本发明的说明的情况下运用它们的基本编程技能就能实现的。
因此,本发明的目的还可以通过在任何计算装置上运行一个程序或者一组程序来实现。所述计算装置可以是公知的通用装置。因此,本发明的目的也可以仅仅通过提供包含实现所述方法或者装置的程序代码的程序产品来实现。也就是说,这样的程序产品也构成本发明,并且存储有这样的程序产品的存储介质也构成本发明。显然,所述存储介质可以是任何公知的存储介质或者将来所开发出来的任何存储介质。
根据本发明的实施例,还提供了一种存储介质(该存储介质可以是ROM、RAM、硬盘、可拆卸存储器等),该存储介质中嵌入有用于进行资源分配的计算机程序,该计算机程序具有被配置用于执行以下步骤的代码段:对预定频带进行检测,确定预定频带子帧p中预定时间段内是否存在第一时间的空闲;在检测结果为是的情况下,自子帧p的后一子帧开始,在连续的N个子帧上调度数据进行数据传输,并且,将连续的N个子帧中的最后一子帧中的最后A个符号设置为空闲,其中,A个符号所对应的时间总长度不小于第一时间,且N和A均为正整数。
根据本发明的实施例,还提供了一种存储介质(该存储介质可以是ROM、RAM、硬盘、可拆卸存储器等),该存储介质中嵌入有用于进行资源分配的计算机程序,该计算机程序具有被配置用于执行以下步骤的代码段:检测基站发送的下行控制信令DCI,DCI用于调度用户设备在预定频带的子帧p中进行数据接收或发送;在检测到DCI的情况下,根据DCI,确定子帧p中最后空闲的符号数B,其中,B为非负整数;根据空闲的符号数B,在预定频带的子帧p中进行数据接收或发送。
根据本发明的实施例,还提供了一种计算机程序,该计算机程序具有被配置用于执行以下资源分配步骤的代码段:对预定频带进行检测,确定预定频带子帧p中预定 时间段内是否存在第一时间的空闲;在检测结果为是的情况下,自子帧p的后一子帧开始,在连续的N个子帧上调度数据进行数据传输,并且,将连续的N个子帧中的最后一子帧中的最后A个符号设置为空闲,其中,A个符号所对应的时间总长度不小于第一时间,且N和A均为正整数。
根据本发明的实施例,还提供了一种计算机程序,该计算机程序具有被配置用于执行以下资源分配步骤的代码段:检测基站发送的下行控制信令DCI,DCI用于调度用户设备在预定频带的子帧p中进行数据接收或发送;在检测到DCI的情况下,根据DCI,确定子帧p中最后空闲的符号数B,其中,B为非负整数;根据空闲的符号数B,在预定频带的子帧p中进行数据接收或发送。
在通过软件和/或固件实现本发明的实施例的情况下,从存储介质或网络向具有专用硬件结构的计算机,例如图10所示的通用计算机800安装构成该软件的程序,该计算机在安装有各种程序时,能够执行各种功能等等。
在图10中,中央处理模块(CPU)801根据只读存储器(ROM)802中存储的程序或从存储部分808加载到随机存取存储器(RAM)803的程序执行各种处理。在RAM803中,也根据需要存储当CPU 801执行各种处理等等时所需的数据。CPU 801、ROM802和RAM 803经由总线804彼此连接。输入/输出接口805也连接到总线804。
下述部件连接到输入/输出接口805:输入部分806,包括键盘、鼠标等等;输出部分807,包括显示器,比如阴极射线管(CRT)、液晶显示器(LCD)等等,和扬声器等等;存储部分808,包括硬盘等等;和通信部分809,包括网络接口卡比如LAN卡、调制解调器等等。通信部分809经由网络比如因特网执行通信处理。
根据需要,驱动器810也连接到输入/输出接口805。可拆卸介质811比如磁盘、光盘、磁光盘、半导体存储器等等根据需要被安装在驱动器810上,使得从中读出的计算机程序根据需要被安装到存储部分808中。
在通过软件实现上述系列处理的情况下,从网络比如因特网或存储介质比如可拆卸介质811安装构成软件的程序。
本领域的技术人员应当理解,这种存储介质不局限于图10所示的其中存储有程序、与装置相分离地分发以向用户提供程序的可拆卸介质811。可拆卸介质811的例子包含磁盘(包含软盘(注册商标))、光盘(包含光盘只读存储器(CD-ROM)和数字通用盘(DVD))、磁光盘(包含迷你盘(MD)(注册商标))和半导体存储器。或者,存储介质可以是ROM 802、存储部分808中包含的硬盘等等,其中存有程序,并且与包含它们的装置一起被分发给用户。
还需要指出的是,在本发明的装置和方法中,显然,各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应视为本发明的等效方案。并且,执行上述 系列处理的步骤可以自然地按照说明的顺序按时间顺序执行,但是并不需要一定按照时间顺序执行。某些步骤可以并行或彼此独立地执行。
虽然已经详细说明了本发明及其优点,但是应当理解在不脱离由所附的权利要求所限定的本发明的精神和范围的情况下可以进行各种改变、替代和变换。而且,本申请的术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括所述要素的过程、方法、物品或者装置中还存在另外的相同要素。

Claims (50)

  1. 一种数据传输方法,其特征在于,包括:
    基站对预定频带进行检测,确定所述预定频带子帧p中预定时间段内是否存在第一时间的空闲;
    在检测结果为是的情况下,所述基站自所述子帧p的后一子帧开始,在连续的N个子帧上调度数据进行数据传输,并且,将所述连续的N个子帧中的最后一子帧中的最后A个符号设置为空闲,
    其中,所述A个符号所对应的时间总长度不小于所述第一时间,且N和A均为正整数。
  2. 根据权利要求1所述的数据传输方法,其特征在于,进一步包括:
    所述基站向用户设备发送下行控制信令DCI,所述DCI用于调度所述用户设备在所述预定频带上进行数据接收或发送,其中,所述DCI中包含用于指示所述DCI调度的子帧中最后A个符号是否空闲、或最后空闲的符号数量的信息。
  3. 根据权利要求1所述的数据传输方法,其特征在于,所述A的取值通过预先约定的方式确定、或者所述基站通过信令通知用户设备。
  4. 根据权利要求1所述的数据传输方法,其特征在于,所述第一时间的取值通过预先约定的方式确定、或者基站之间交互信息来确定。
  5. 根据权利要求1所述的数据传输方法,其特征在于,在所述预定频带中,所述预定时间段位于所述子帧p的最后部分。
  6. 根据权利要求1所述的数据传输方法,其特征在于,在所述预定频带中,所述子帧p至少包括第一时间区间、第二时间区间和第三时间区间;
    其中,所述第一时间区间位于所述子帧p的起始位置,所述第三时间区间位于所述子帧的末尾位置,所述第二时间区间位于所述第三时间区间之前且不与所述第一时间区间重叠,并且,所述第二时间区间和第三时间区间的时间长度均不小于所述第一时间。
  7. 根据权利要求6所述的数据传输方法,其特征在于,若所述基站在所述子帧p的第一时间区间内未调度数据进行数据传输,则所述预定时间段为第二时间区间。
  8. 根据权利要求6所述的数据传输方法,其特征在于,若所述基站在所述子帧p的第一时间区间内调度数据进行数据传输,则所述预定时间段为第三时间区间。
  9. 根据权利要求6所述的数据传输方法,其特征在于,所述第一时间区间和/或第二时间区间和/或第三时间区间的取值通过预先约定的方式确定、或者通过基站之间交互信息来确定。
  10. 根据权利要求6所述的数据传输方法,其特征在于,在所述基站将所述连续 的N个子帧中的最后一子帧中的最后A个符号设置为空闲时,所述最后A个符号所对应的时间总长度不小于所述第二时间区间与第三时间区间的长度之和。
  11. 根据权利要求7所述的数据传输方法,其特征在于,进一步包括:
    在所述预定时间段为第二时间区间的情况下,所述基站利用所述第三时间区间内的最后C个符号,在所述预定频带上发送预定信号,其中,C为正整数。
  12. 根据权利要求11所述的数据传输方法,其特征在于,所述预定信号包括同步信号和/或测量参考信号。
  13. 根据权利要求11所述的数据传输方法,其特征在于,所述C的取值通过预先约定的方式确定、或者所述基站通过信令通知用户设备。
  14. 根据权利要求1所述的数据传输方法,其特征在于,所述N个子帧包括以下子帧中的一种或多种:
    下行子帧、上行子帧、特殊子帧。
  15. 根据权利要求1所述的数据传输方法,其特征在于,所述预定频带包括非授权频带。
  16. 一种数据传输方法,其特征在于,包括:
    用户设备检测基站发送的下行控制信令DCI,其中,所述DCI用于调度所述用户设备在预定频带的子帧p中进行数据接收或发送;
    在检测到所述DCI的情况下,所述用户设备根据所述DCI,确定所述子帧p中最后空闲的符号数B,其中,B为非负整数;
    所述用户设备根据所述空闲的符号数B,在所述预定频带的所述子帧p中进行数据接收或发送。
  17. 根据权利要求16所述的数据传输方法,其特征在于,所述用户设备根据所述DCI,确定所述子帧p中最后空闲的符号数B包括:
    在所述DCI中包括用于指示所述子帧p中最后A个符号是否空闲的信息时,若指示空闲,则将A作为所述符号数B,否则将零作为所述符号数B,其中,A为正整数,并且,所述最后A个符号所对应的时间总长度不小于第一时间。
  18. 根据权利要求17所述的数据传输方法,其特征在于,所述A的取值通过预先约定的方式确定、或者所述基站通过信令通知所述用户设备。
  19. 根据权利要求17所述的数据传输方法,其特征在于,所述第一时间的取值通过预先约定的方式确定、或者基站之间交互信息来确定。
  20. 根据权利要求16所述的数据传输方法,其特征在于,所述用户设备根据所述DCI,确定所述子帧p中最后空闲的符号数B包括:
    在所述DCI包括用于指示所述子帧p中最后空闲的符号数量信息时,将所述DCI 指示的最后空闲的符号数量作为所述符号数B。
  21. 根据权利要求16所述的数据传输方法,其特征在于,进一步包括:
    在未检测到所述DCI的情况下,所述用户设备在所述预定频带的子帧p中的最后C个符号上接收所述基站发送的预定信号,其中,C为非负整数。
  22. 根据权利要求21所述的数据传输方法,其特征在于,所述预定信号包括同步信号和/或测量参考信号。
  23. 根据权利要求21所述的数据传输方法,其特征在于,所述C的取值通过预先约定的方式确定、或者所述基站通过信令通知所述用户设备。
  24. 根据权利要求16所述的数据传输方法,其特征在于,所述用户设备根据所述空闲的符号数B,在所述预定频带的所述子帧p中进行数据接收或发送包括:
    在所述DCI调度的数据为下行数据的情况下,所述用户设备在所述预定频带的所述子帧p中的前L减B个符号上进行数据接收;
    在所述DCI调度的数据为上行数据的情况下,所述用户设备在所述预定频带的所述子帧p中的前L减B个符号上进行数据发送;
    其中,L为所述子帧p中最大的符号数量。
  25. 根据权利要求16所述的数据传输方法,其特征在于,所述预定频带包括非授权频带。
  26. 一种基站,其特征在于,包括:
    基站检测模块,用于对预定频带进行检测,确定所述预定频带子帧p中预定时间段内是否存在第一时间的空闲;
    基站处理模块,用于在检测结果为是的情况下,自所述子帧p的最后一子帧开始,在连续的N个子帧上调度数据进行数据传输,并且,将所述连续的N个子帧中的最后一子帧中的最后A个符号设置为空闲,其中,所述A个符号所对应的时间总长度不小于所述第一时间,且N和A均为正整数。
  27. 根据权利要求26所述的基站,其特征在于,进一步包括:
    第一发送模块,用于向用户设备发送下行控制信令DCI,所述DCI用于调度所述用户设备在所述预定频带上进行数据接收或发送,其中,所述DCI中包含用于指示所述DCI调度的子帧中最后A个符号是否空闲、或最后空闲的符号数量的信息。
  28. 根据权利要求26所述的基站,其特征在于,所述A的取值通过预先约定的方式确定、或者所述基站通过信令通知用户设备。
  29. 根据权利要求26所述的基站,其特征在于,所述第一时间的取值通过预先约定的方式确定、或者基站之间交互信息来确定。
  30. 根据权利要求26所述的基站,其特征在于,在所述预定频带中,所述预定时 间段位于所述子帧p的最后部分。
  31. 根据权利要求26所述的基站,其特征在于,在所述预定频带中,所述子帧p至少包第一时间区间、第二时间区间和第三时间区间;
    其中,所述第一时间区间位于所述子帧p的起始位置,所述第三时间区间位于所述子帧的末尾位置,所述第二时间区间位于所述第三时间区间之前且不与所述第一时间区间重叠,并且,所述第二时间区间和第三时间区间的时间长度均不小于所述第一时间。
  32. 根据权利要求31所述的基站,其特征在于,若所述基站处理模块在所述子帧p的第一时间区间内未调度数据进行数据传输,则所述预定时间段为第二时间区间。
  33. 根据权利要求31所述的基站,其特征在于,若所述基站处理模块在所述子帧p的第一时间区间内调度数据进行数据传输,则所述预定时间段为第三时间区间。
  34. 根据权利要求31所述的基站,其特征在于,所述第一时间区间和/或第二时间区间和/或第三时间区间的取值通过预先约定的方式确定、或者通过基站之间交互信息来确定。
  35. 根据权利要求31所述的基站,其特征在于,在所述基站处理模块将所述连续的N个子帧中的最后一子帧的最后A个符号设置为空闲时,所述最后A个符号所对应的时间总长度不小于所述第二时间区间与第三时间区间的长度之和。
  36. 根据权利要求32所述的基站,其特征在于,进一步包括:
    第二发送模块,用于在所述预定时间段为第二时间区间的情况下,利用所述第三时间区间内的最后C个符号,在所述预定频带上发送预定信号,其中,C为正整数。
  37. 根据权利要求36所述的基站,其特征在于,所述预定信号包括同步信号和/或测量参考信号。
  38. 根据权利要求36所述的基站,其特征在于,所述C的取值通过预先约定的方式确定、或者所述基站通过信令通知用户设备。
  39. 根据权利要求26所述的基站,其特征在于,所述N个子帧包括以下子帧中的一种或多种:
    下行子帧、上行子帧、特殊子帧。
  40. 根据权利要求26所述的基站,其特征在于,所述预定频带包括非授权频带。
  41. 一种用户设备,其特征在于,包括:
    终端检测模块,用于检测基站发送的下行控制信令DCI,其中,所述DCI用于调度所述用户设备在预定频带的子帧p中进行数据接收或发送;
    终端确定模块,用于在检测到所述DCI的情况下,根据所述DCI,确定所述子帧p中最后空闲的符号数B,其中,B为非负整数;
    终端处理模块,用于根据所述空闲的符号数B,在所述预定频带的所述子帧p中进行数据接收或发送。
  42. 根据权利要求41所述的用户设备,其特征在于,所述终端确定模块进一步包括:
    第一确定子模块,用于在所述DCI包括用于指示所述子帧p中最后A个符号是否空闲的信息时,若指示空间,则将A作为所述符号数B,否则将零作为所述符号数B,其中,A为正整数,并且,所述最后A个符号所对应的时间总长度不小于第一时间。
  43. 根据权利要求42所述的用户设备,其特征在于,所述A的取值通过预先约定的方式确定、或者所述基站通过信令通知所述用户设备。
  44. 根据权利要求42所述的用户设备,其特征在于,所述第一时间的取值通过预先约定的方式确定、或者基站之间交互信息来确定。
  45. 根据权利要求41所述的用户设备,其特征在于,所述终端确定模块还包括:
    第二确定子模块,用于在所述DCI包括用于指示所述子帧p中最后空闲的符号数量信息时,将所述DCI指示的最后空闲的符号数量作为所述符号数B。
  46. 根据权利要求41所述的用户设备,其特征在于,进一步包括:
    接收模块,用于在未检测到所述DCI的情况下,在所述预定频带的子帧p中的最后C个符号上接收所述基站发送的预定信号,其中,C为非负整数。
  47. 根据权利要求46所述的用户设备,其特征在于,所述预定信号包括同步信号和/或测量参考信号。
  48. 根据权利要求46所述的用户设备,其特征在于,所述C的取值通过预先约定的方式确定、或者所述基站通过信令通知所述用户设备。
  49. 根据权利要求41所述的用户设备,其特征在于,所述终端处理模块进一步包括:
    接收子模块,用于在所述DCI调度的数据为下行数据的情况下,在所述预定频带的所述子帧p中的前L减B个符号上进行数据接收;
    发送子模块,用于在所述DCI调度的数据为上行数据的情况下,在所述预定频带的所述子帧p中的前L减B个符号上进行数据发送;
    其中,L为所述子帧p中最大的符号数量。
  50. 根据权利要求41所述的用户设备,其特征在于,所述预定频带包括非授权频带。
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