WO2016119355A1 - 数据传输方法、数据传输装置和数据传输系统 - Google Patents

数据传输方法、数据传输装置和数据传输系统 Download PDF

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Publication number
WO2016119355A1
WO2016119355A1 PCT/CN2015/080392 CN2015080392W WO2016119355A1 WO 2016119355 A1 WO2016119355 A1 WO 2016119355A1 CN 2015080392 W CN2015080392 W CN 2015080392W WO 2016119355 A1 WO2016119355 A1 WO 2016119355A1
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WIPO (PCT)
Prior art keywords
channel
occupied
information
base station
terminal
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PCT/CN2015/080392
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English (en)
French (fr)
Inventor
朱亚军
李明菊
张云飞
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks

Definitions

  • the present invention relates to the field of data transmission technologies, and in particular, to a data transmission method for a cell using an unlicensed spectrum providing service, a data transmission device for a cell using an unlicensed spectrum providing service, and an unlicensed spectrum providing The data transmission system of the serving cell.
  • LAA Licensed-Assisted Access
  • the transmission of mobile communication can be carried on an unlicensed spectrum, such as the 5 GHz band.
  • unlicensed spectrums currently mainly WiFi, Bluetooth, radar, medical and other systems are in use.
  • the LAA mechanism the licensed spectrum is used to assist access on the unlicensed spectrum through the CA mechanism.
  • the LTE is used on the unlicensed spectrum
  • the system can work in two modes, as shown in FIG. 1A, and the supplementary downlink SDL (Supplemental Downlink), that is, only the downlink transmission subframe; FIG. 1B
  • the other is a TDD (Time Division Duplex) mode, in which both uplink and downlink transmission subframes are included. This situation can only be supplemented by the carrier aggregation technology.
  • the first thing to solve is the problem of coexistence when using LAA on unlicensed spectrum.
  • a basic principle of coexistence is that different systems can fairly occupy unlicensed bands.
  • Coexistence issues include the coexistence between LAA and LAA, as well as the coexistence of LAA with other unlicensed systems. WiFi.
  • the current LAA base station does not have the function of WiFi, that is, the signaling that coexists between the WiFi in the conventional WiFi system cannot be directly applied to the LAA system. Therefore, there may be a problem of transmission collision.
  • the LAA base station since the LAA base station and the served terminal 1 cannot detect the transmission of the WiFi AP to the terminal 2, the LAA base station considers that the current channel is idle, thereby transmitting data to the service. Terminal 1. Therefore, the transmission of the LAA interferes with the data reception of the terminal 2. The same problem can occur in the coexistence scenario between the LAA system and the LAA system.
  • the present invention is based on the above problems, and proposes a new technical solution to avoid the problem of transmission collision between LAA systems on the unlicensed spectrum and between the LAA and the WiFi system.
  • the present invention provides a data transmission method for a cell that uses an unlicensed spectrum to provide a service, and is used for a terminal, including: when a serving base station performs data interaction with the terminal through a downlink channel of an unlicensed spectrum, The terminal detects that other serving base stations need to perform data interaction with other terminals through the downlink channel of the unlicensed spectrum, suspends data interaction with the serving base station, and sends a channel occupied command to the other serving base station or And the other terminal, configured to determine, by the other serving base station, whether to occupy the downlink channel according to the channel occupied instruction.
  • a serving base station When a serving base station performs data interaction with the terminal through the downlink channel of the unlicensed spectrum, if another serving base station also needs to perform data interaction with other terminals through the downlink channel, then if other serving base stations perform channel detection, due to other The serving base station and other terminals cannot detect the downlink transmission between the serving base station and the terminal. Therefore, other serving base stations can judge that the current channel is idle, thereby causing a problem of transmission collision.
  • the terminal when the terminal detects that other serving base stations also need to perform data interaction through the downlink channel of the unlicensed spectrum, that is, when receiving interference from other serving base stations, suspend data interaction with the terminal, And sending a channel occupied command, so that other serving base stations will know that the channel has been occupied when receiving the channel occupied instruction, thereby avoiding the possible transmission collision problem, thereby improving the effectiveness of the unlicensed spectrum.
  • the serving base station may be either a LAA base station or a WIFI base station.
  • the method further includes: resuming data interaction with the serving base station after the terminal sends the channel occupied instruction.
  • the method further includes: before the data interaction between the terminal and the serving base station, receiving channel occupation request information sent by the serving base station when performing data interaction through the downlink channel, and And after receiving the channel occupation request information, sending the acknowledgement information occupied by the channel to the serving base station, where the channel occupation request information includes time information occupied by the channel, starting point information occupied by the channel, and end of channel occupation. Time-frequency resource information occupied by point information and/or transmission of acknowledgement information occupied by the channel.
  • the serving base station when the serving base station needs to interact with the terminal through the downlink channel, it needs to send channel occupation request information, where the channel occupation request information includes time information occupied by the channel, starting point information occupied by the channel, and end of channel occupation.
  • the point information and/or the time-frequency resource information and the like occupied by the acknowledgement information occupied by the channel are transmitted, so that the terminal can determine whether to send the acknowledgement information occupied by the channel to the serving base station according to the channel occupancy request information.
  • the acknowledgment information occupied by the sending channel to the serving base station specifically includes: determining a current working mechanism of the terminal; when the current working mechanism is an auxiliary downlink working transmission mechanism, The terminal sends the acknowledgement information of the channel occupation to the serving base station by using a carrier used by the aggregated primary serving cell; when the current working mechanism is a time division duplex transmission mechanism, the terminal is occupied by the channel. And time-frequency resources in the time-frequency resource information of the request information, or sending the acknowledgement information occupied by the channel to the serving base station by using a predefined time-frequency resource.
  • processing mode 1 if the current working mechanism is auxiliary downlink work
  • the terminal will send the acknowledgement information of the channel occupation on the carrier used by the aggregated primary serving cell, and the carrier used by the primary serving cell notifies the serving base station terminal that the channel occupancy information has been confirmed by the backhaul signaling.
  • the terminal also sends CTS information through the WiFi port on the unlicensed spectrum.
  • the terminal will transmit the time-frequency resource occupied by the terminal acknowledgment channel occupation information channel occupation request information indicated by the channel occupation information channel occupation request information or
  • the uplink control signaling is directly sent at a predefined time-frequency location to indicate the information occupied by the acknowledgement channel.
  • the uplink control signaling may be used to multiplex the PUC (Physical Uplink Control CHannel) and the Physical Uplink Shared CHannel (Physical Uplink Shared CHannel) in the current LTE (Long Term Evolution) system.
  • Signaling format such as PRACH (Physical Random Access CHannel) or new signaling.
  • the channel occupied instruction includes time information occupied by the channel, starting point information occupied by the channel, and/or end point information occupied by the channel.
  • the resources used by the terminal to transmit the channel occupied command may be predefined, or may be through RRC (Radio Resource Control), MAC CE (Medium Access Control, Control Element, Media Access Control Element). , O&M (Operation and Management) or physical layer signaling configuration.
  • the channel occupied command sent by the terminal to another terminal or other serving base station includes time information occupied by the channel, starting point information occupied by the channel, and end point information occupied by the channel, so that other serving base stations are facilitated according to
  • the end time occupied by the channel determines whether the channel is occupied and when the channel is occupied.
  • a data transmission method for a cell using an unlicensed spectrum providing service for serving a base station, comprising: when the serving base station needs to perform data through a downlink channel of an unlicensed spectrum and a terminal Transmitting, when the channel occupies the request information to the terminal, receiving the acknowledgment information occupied by the channel sent by the terminal, and receiving the channel sent by other terminals when performing data interaction with other serving base stations through the downlink channel of the unlicensed spectrum
  • the occupied command determines whether to occupy the downlink channel according to the acknowledgement information occupied by the channel and the channel occupied command.
  • a serving base station When a serving base station performs data interaction with the terminal through the downlink channel of the unlicensed spectrum, if another serving base station also needs to perform data interaction with other terminals through the downlink channel, then if other serving base stations perform channel detection, due to other The serving base station and other terminals cannot detect the downlink transmission between the serving base station and the terminal. Therefore, other serving base stations can judge that the current channel is idle, thereby causing a problem of transmission collision.
  • the channel occupation request information is sent to the terminal, and the not only receives the acknowledgement information of the channel occupation from the terminal, but also the channel has been When occupied, receiving channel occupied information from other serving base stations, so that the serving base station can determine whether to occupy the channel according to the channel occupied acknowledgment information and channel occupied information, thereby avoiding possible transmission collision problems, thereby improving non- The validity of the licensed spectrum.
  • the serving base station sends the channel occupation request information to the terminal by using physical layer downlink control signaling or pilot information, where the channel occupation request information includes a channel.
  • the channel occupation request information includes a channel.
  • the serving base station sends the channel occupation request information by using the physical layer downlink control signaling for the public information transmission or the terminal, and the information includes the channel occupation time, the channel occupation starting point, the end point, and The terminal transmits information such as time-frequency resources occupied by the acknowledgement channel occupation request information.
  • the serving base station may send pilot information to notify the channel occupation time, the channel occupation starting point, the ending point, and the time-frequency resource occupied by the terminal transmission acknowledgement channel occupation request information.
  • the sending, by using the pilot information, the channel occupation request information includes: indicating, by using a time-frequency position of a pilot or a sequence used by the pilot, in the channel occupation request information.
  • the time-frequency position of the pilot or the sequence used by the pilot may be used to indicate information such as the channel occupation time, the channel occupation start point, the end point, and the time-frequency resource occupied by the terminal transmission acknowledgement channel occupation request information.
  • a data transmission apparatus for a cell using an unlicensed spectrum providing service for a terminal, comprising: a processing unit, when the serving base station passes the downlink channel of the unlicensed spectrum and the terminal During data interaction, if it is detected that other serving base stations need to perform data interaction with other terminals through the downlink channel of the unlicensed spectrum, the data interaction with the serving base station is suspended, and the channel occupied command is sent to the other Serving the base station or the other terminal, for the other serving base station to determine whether to occupy the downlink channel according to the channel occupied instruction.
  • a serving base station When a serving base station performs data interaction with the terminal through the downlink channel of the unlicensed spectrum, if another serving base station also needs to perform data interaction with other terminals through the downlink channel, then if other serving base stations perform channel detection, due to other The serving base station and other terminals cannot detect the downlink transmission between the serving base station and the terminal. Therefore, other serving base stations can judge that the current channel is idle, thereby causing a problem of transmission collision.
  • the terminal when the terminal detects that other serving base stations also need to perform data interaction through the downlink channel of the unlicensed spectrum, that is, when receiving interference from other serving base stations, pause data interaction with the terminal, and send A channel already occupies an instruction, so that other serving base stations will know that the channel is already occupied when receiving the channel occupied instruction, thereby avoiding a possible transmission collision problem, thereby improving the effectiveness of the unlicensed spectrum.
  • the serving base station may be either a LAA base station or a WIFI base station.
  • the method further includes: a recovery unit, re-restoring data interaction with the serving base station after the terminal sends the channel occupied instruction.
  • the method further includes: an interaction unit, before receiving the data interaction between the terminal and the serving base station, receiving a channel occupation request sent by the serving base station when performing data interaction through the downlink channel The information, and after receiving the channel occupation request information, send the acknowledgement information occupied by the channel to the serving base station, where the channel occupation request information includes time information occupied by the channel, starting point information occupied by the channel, and channel Time-frequency resource information occupied by the occupied end point information and/or the transmission of the acknowledgement information occupied by the channel.
  • the serving base station when the serving base station needs to interact with the terminal through the downlink channel, it needs to send channel occupation request information, where the channel occupation request information includes time information occupied by the channel, starting point information occupied by the channel, and end of channel occupation.
  • the point information and/or the time-frequency resource information and the like occupied by the acknowledgement information occupied by the channel are transmitted, so that the terminal can determine whether to send the acknowledgement information occupied by the channel to the serving base station according to the channel occupancy request information.
  • the interaction unit is specifically configured to: determine a current working mechanism of the terminal; when the current working mechanism is an auxiliary downlink working transmission mechanism, the terminal passes the aggregated primary serving cell.
  • the used carrier sends the acknowledgement information occupied by the channel to the serving base station; when the current working mechanism is a time division duplex transmission mechanism, the terminal uses the time-frequency resource information of the channel occupation request information.
  • the time-frequency resource in the medium frequency resource, or the acknowledgement information occupied by the channel is sent to the serving base station by using a predefined time-frequency resource.
  • processing mode 1 if the current working mechanism is the auxiliary downlink working transmission mechanism, the terminal will be in the aggregated main service.
  • the acknowledgment information of the transmission channel occupied by the carrier used by the cell the carrier used by the primary serving cell notifies the serving base station terminal that the channel occupation information has been confirmed by the backhaul signaling, and the terminal also sends the CTS information through the WiFi port on the unlicensed spectrum.
  • processing mode 2 if the current working mechanism is the time division duplex transmission mechanism, the terminal will transmit the time-frequency resource occupied by the terminal confirming the channel occupation request information or the predefined time-frequency position on the terminal indicated by the channel occupation request information.
  • the uplink control signaling is directly sent to indicate the information occupied by the acknowledgement channel.
  • the uplink control signaling may reuse a signaling format such as PUCCH, PUSCH, PRACH, or new signaling existing in the current LTE system.
  • the channel occupied instruction includes time information occupied by the channel, starting point information occupied by the channel, and/or end point information occupied by the channel.
  • the resources used by the terminal to send the channel occupied command may be predefined, or may be configured through RRC, MAC CE, O&M or physical layer signaling.
  • the channel occupied command sent by the terminal to another terminal or other serving base station includes time information occupied by the channel, starting point information occupied by the channel, and end point information occupied by the channel, so that other serving base stations are facilitated according to
  • the end time occupied by the channel determines whether the channel is occupied and when the channel is occupied.
  • a data transmission apparatus for a cell using an unlicensed spectrum providing service for serving a base station, comprising: a transmitting unit, when the serving base station needs to pass a downlink channel of an unlicensed spectrum Transmitting channel occupation request information to the terminal when the terminal performs data interaction; and receiving, receiving the acknowledgement information of the channel occupancy sent by the terminal, and receiving the downlink channel of the other terminal through the unlicensed spectrum and other serving base stations
  • the channel sent when the data is exchanged has occupied the instruction, and determines whether to occupy the downlink channel according to the acknowledgement information occupied by the channel and the channel occupied instruction.
  • a serving base station When a serving base station performs data interaction with the terminal through the downlink channel of the unlicensed spectrum, if another serving base station also needs to perform data interaction with other terminals through the downlink channel, then if other serving base stations perform channel detection, due to other The serving base station and other terminals cannot detect the downlink transmission between the serving base station and the terminal. Therefore, other serving base stations can judge that the current channel is idle, thereby causing a problem of transmission collision.
  • the channel occupation request information is sent to the terminal, and the not only receives the acknowledgement information of the channel occupation from the terminal, but also the channel has been When occupied, receiving channel occupied information from other serving base stations, so that the serving base station can determine whether to occupy the channel according to the channel occupied acknowledgment information and channel occupied information, thereby avoiding possible transmission collision problems, thereby improving non- The validity of the licensed spectrum.
  • the sending unit is configured to send the channel occupation request information to the terminal by using physical layer downlink control signaling or pilot information, where the channel occupation request information is included.
  • the serving base station sends the channel occupation request information by using the physical layer downlink control signaling for the public information transmission or the terminal, and the information includes the channel occupation time, the channel occupation starting point, the end point, and The terminal transmits information such as time-frequency resources occupied by the acknowledgement channel occupation request information.
  • the serving base station may send pilot information to notify the channel occupation time, the channel occupation starting point, the ending point, and the time-frequency resource occupied by the terminal transmission acknowledgement channel occupation request information.
  • the sending unit is specifically configured to: indicate, by using a time-frequency position of the pilot or a sequence used by the pilot, a time occupied by a channel in the channel occupation request information, and a channel occupation.
  • the time-frequency position of the pilot or the sequence used by the pilot may be used to indicate information such as the channel occupation time, the channel occupation start point, the end point, and the time-frequency resource occupied by the terminal transmission acknowledgement channel occupation request information.
  • a data transmission system in a serving cell of an unlicensed spectrum comprising: a cell for a terminal using an unlicensed spectrum providing service according to any one of the foregoing technical solutions And a data transmission device for a cell serving a base station using an unlicensed spectrum providing service according to any one of the above aspects.
  • the data transmission system in the serving cell of the unlicensed spectrum has the same technical effect as the data transmission device of the cell that uses the unlicensed spectrum to provide the foregoing service, and details are not described herein.
  • FIGS. 1A and 1B are schematic diagrams showing an SDL mode and a TDD mode in the related art
  • FIG. 2 is a schematic structural diagram of data transmission by a cell using an unlicensed spectrum providing service
  • FIG. 3 shows a flow chart of a data transmission method of a cell using an unlicensed spectrum providing service according to an embodiment of the present invention
  • FIG. 4 is a flow chart showing a data transmission method of a cell using an unlicensed spectrum providing service according to another embodiment of the present invention.
  • FIG. 5 is a block diagram showing a data transmission apparatus of a cell using an unlicensed spectrum providing service according to an embodiment of the present invention
  • FIG. 6 shows a block diagram of a data transmission apparatus of a cell using an unlicensed spectrum providing service according to another embodiment of the present invention
  • FIG. 7 illustrates the use of an unlicensed spectrum providing service in accordance with another embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram showing data transmission by a cell using an unlicensed spectrum providing service
  • FIG. 9 shows a specific flow chart of a data transmission method of a cell using an unlicensed spectrum providing service according to an embodiment of the present invention.
  • FIG. 3 shows a flow chart of a data transmission method of a cell using an unlicensed spectrum providing service according to an embodiment of the present invention.
  • a data transmission method for a cell using an unlicensed spectrum providing service is used for a terminal, including: Step 302, when a serving base station passes a downlink channel of an unlicensed spectrum and the terminal During the data interaction, if the terminal detects that other serving base stations need to perform data interaction with other terminals through the downlink channel of the unlicensed spectrum, the data interaction with the serving base station is suspended, and the channel occupied command is sent. And to the other serving base station or the other terminal, for the other serving base station to determine whether to occupy the downlink channel according to the channel occupied instruction.
  • a serving base station When a serving base station performs data interaction with the terminal through the downlink channel of the unlicensed spectrum, if another serving base station also needs to perform data interaction with other terminals through the downlink channel, then if other serving base stations perform channel detection, due to other The serving base station and other terminals cannot detect the downlink transmission between the serving base station and the terminal. Therefore, other serving base stations can judge that the current channel is idle, thereby causing a problem of transmission collision.
  • the terminal when the terminal detects that other serving base stations also need to perform data interaction through the downlink channel of the unlicensed spectrum, that is, when receiving interference from other serving base stations, suspend data interaction with the terminal, And sending a channel occupied command, so that other serving base stations will know that the channel has been occupied when receiving the channel occupied instruction, thereby avoiding the possible transmission collision problem, thereby improving the effectiveness of the unlicensed spectrum.
  • the serving base station may be either a LAA base station or a WIFI base station.
  • the method further includes: resuming data interaction with the serving base station after the terminal sends the channel occupied instruction.
  • the method further includes: before the data interaction between the terminal and the serving base station, receiving channel occupation request information sent by the serving base station when performing data interaction through the downlink channel, and And after receiving the channel occupation request information, sending the acknowledgement information occupied by the channel to the serving base station, where the channel occupation request information includes time information occupied by the channel, starting point information occupied by the channel, and end of channel occupation. Time-frequency resource information occupied by point information and/or transmission of acknowledgement information occupied by the channel.
  • the serving base station when the serving base station needs to interact with the terminal through the downlink channel, it needs to send channel occupation request information, where the channel occupation request information includes time information occupied by the channel, starting point information occupied by the channel, and end of channel occupation.
  • the point information and/or the time-frequency resource information and the like occupied by the acknowledgement information occupied by the channel are transmitted, so that the terminal can determine whether to send the acknowledgement information occupied by the channel to the serving base station according to the channel occupancy request information.
  • the acknowledgment information occupied by the sending channel to the serving base station specifically includes: determining a current working mechanism of the terminal; when the current working mechanism is an auxiliary downlink working transmission mechanism, The terminal sends the acknowledgement information of the channel occupation to the serving base station by using a carrier used by the aggregated primary serving cell; when the current working mechanism is a time division duplex transmission mechanism, the terminal is occupied by the channel. And time-frequency resources in the time-frequency resource information of the request information, or sending the acknowledgement information occupied by the channel to the serving base station by using a predefined time-frequency resource.
  • processing mode 1 if the current working mechanism is the auxiliary downlink working transmission mechanism In this case, the terminal will send the acknowledgement information of the channel occupation on the carrier used by the aggregated primary serving cell, and the carrier used by the primary serving cell notifies the serving base station terminal that the channel occupancy information has been confirmed by the backhaul signaling, and the terminal also The CTS information is sent over the WiFi port on the unlicensed spectrum.
  • processing mode 2 if the current working mechanism is the time division duplex transmission mechanism, the terminal will transmit the time-frequency resource occupied by the terminal confirming the channel occupation request information or the predefined time-frequency position on the terminal indicated by the channel occupation request information.
  • the uplink control signaling is directly sent to indicate the information occupied by the acknowledgement channel.
  • the uplink control signaling may reuse a signaling format such as PUCCH, PUSCH, PRACH, or new signaling existing in the current LTE system.
  • the channel occupied instruction includes time information occupied by the channel, starting point information occupied by the channel, and/or end point information occupied by the channel.
  • the resources used by the terminal to send the channel occupied command may be predefined, or may be configured through RRC, MAC CE, O&M or physical layer signaling.
  • the channel occupied command sent by the terminal to another terminal or other serving base station includes time information occupied by the channel, starting point information occupied by the channel, and end point information occupied by the channel, so that other serving base stations are facilitated according to
  • the end time occupied by the channel determines whether the channel is occupied and when the channel is occupied.
  • FIG. 4 is a flow chart showing a data transmission method of a cell using an unlicensed spectrum providing service according to another embodiment of the present invention.
  • a data transmission method for a cell that uses an unlicensed spectrum to provide a service for serving a base station includes: Step 402: When the serving base station needs to pass the downlink of the unlicensed spectrum Transmitting channel occupation request information to the terminal when the channel performs data interaction with the terminal; step 404, receiving acknowledgement information of channel occupancy sent by the terminal, and receiving a downlink channel and other services of other terminals in the unlicensed spectrum
  • the channel sent by the base station for data interaction has occupied an instruction, and determines whether to occupy the downlink channel according to the acknowledgement information occupied by the channel and the channel occupied instruction.
  • a serving base station When a serving base station performs data interaction with the terminal through the downlink channel of the unlicensed spectrum, if another serving base station also needs to perform data interaction with other terminals through the downlink channel, then if other serving base stations perform channel detection, due to other The serving base station and other terminals cannot detect the downlink transmission between the serving base station and the terminal, and therefore, other serving base stations will judge The current channel is broken, causing a problem of transmission collision.
  • the channel occupation request information is sent to the terminal, and the not only receives the acknowledgement information of the channel occupation from the terminal, but also the channel has been When occupied, receiving channel occupied information from other serving base stations, so that the serving base station can determine whether to occupy the channel according to the channel occupied acknowledgment information and channel occupied information, thereby avoiding possible transmission collision problems, thereby improving non- The validity of the licensed spectrum.
  • the serving base station sends the channel occupation request information to the terminal by using physical layer downlink control signaling or pilot information, where the channel occupation request information includes a channel.
  • the channel occupation request information includes a channel.
  • the serving base station sends the channel occupation request information by using the physical layer downlink control signaling for the public information transmission or the terminal, and the information includes the channel occupation time, the channel occupation starting point, the end point, and The terminal transmits information such as time-frequency resources occupied by the acknowledgement channel occupation request information.
  • the serving base station may send pilot information to notify the channel occupation time, the channel occupation starting point, the ending point, and the time-frequency resource occupied by the terminal transmission acknowledgement channel occupation request information.
  • the sending, by using the pilot information, the channel occupation request information includes: indicating, by using a time-frequency position of a pilot or a sequence used by the pilot, in the channel occupation request information.
  • the time-frequency position of the pilot or the sequence used by the pilot may be used to indicate information such as the channel occupation time, the channel occupation start point, the end point, and the time-frequency resource occupied by the terminal transmission acknowledgement channel occupation request information.
  • Figure 5 shows a block diagram of a data transmission device of a cell using an unlicensed spectrum providing service, in accordance with one embodiment of the present invention.
  • a data transmission apparatus 500 for a terminal using a cell that provides an unlicensed spectrum providing service includes: a processing unit 502, a recovery unit 504 And an interaction unit 506.
  • the processing unit 502 is configured to: when the serving base station performs data interaction with the terminal through the downlink channel of the unlicensed spectrum, if it is detected that other serving base stations need to perform data interaction with other terminals through the downlink channel of the unlicensed spectrum, And then suspending data interaction with the serving base station, and sending a channel occupied command to the other serving base station or the other terminal, so that the other serving base station determines whether to occupy the according to the channel occupied instruction. Downstream channel.
  • a serving base station When a serving base station performs data interaction with the terminal through the downlink channel of the unlicensed spectrum, if another serving base station also needs to perform data interaction with other terminals through the downlink channel, then if other serving base stations perform channel detection, due to other The serving base station and other terminals cannot detect the downlink transmission between the serving base station and the terminal. Therefore, other serving base stations can judge that the current channel is idle, thereby causing a problem of transmission collision.
  • the terminal when the terminal detects that other serving base stations also need to perform data interaction through the downlink channel of the unlicensed spectrum, that is, when receiving interference from other serving base stations, pause data interaction with the terminal, and send A channel already occupies an instruction, so that other serving base stations will know that the channel is already occupied when receiving the channel occupied instruction, thereby avoiding a possible transmission collision problem, thereby improving the effectiveness of the unlicensed spectrum.
  • the serving base station may be either a LAA base station or a WIFI base station.
  • the recovery unit 504 is configured to resume data interaction with the serving base station after the terminal sends the channel occupied instruction.
  • the interaction unit 506 is configured to receive, after the terminal performs data interaction with the serving base station, channel occupancy request information that is sent by the serving base station when performing data interaction through the downlink channel. And after receiving the channel occupation request information, sending the acknowledgement information occupied by the channel to the serving base station, where the channel occupation request information includes time information occupied by the channel, starting point information occupied by the channel, and channel occupation The end point information and/or the time-frequency resource information occupied by the acknowledgement information occupied by the channel.
  • the serving base station when the serving base station needs to interact with the terminal through the downlink channel, it needs to send channel occupation request information, where the channel occupation request information includes time information occupied by the channel, starting point information occupied by the channel, and end of channel occupation.
  • the point information and/or the time-frequency resource information and the like occupied by the acknowledgement information occupied by the channel are transmitted, so that the terminal can determine whether to send the acknowledgement information occupied by the channel to the serving base station according to the channel occupancy request information.
  • the interaction unit 506 is specifically configured to: determine a current working mechanism of the terminal; when the current working mechanism is an auxiliary downlink working transmission mechanism, the terminal passes the aggregated primary service.
  • the carrier used by the cell sends the acknowledgement information of the channel occupation to the serving base station; when the current working mechanism is a time division duplex transmission mechanism, the terminal uses the time-frequency resource of the channel occupation request information.
  • processing mode 1 if the current working mechanism is the auxiliary downlink working transmission mechanism, the terminal will be in the aggregated main service.
  • the acknowledgment information of the transmission channel occupied by the carrier used by the cell the carrier used by the primary serving cell notifies the serving base station terminal that the channel occupation information has been confirmed by the backhaul signaling, and the terminal also sends the CTS information through the WiFi port on the unlicensed spectrum.
  • processing mode 2 if the current working mechanism is the time division duplex transmission mechanism, the terminal will transmit the time-frequency resource occupied by the terminal confirming the channel occupation request information or the predefined time-frequency position on the terminal indicated by the channel occupation request information.
  • the uplink control signaling is directly sent to indicate the information occupied by the acknowledgement channel.
  • the uplink control signaling may reuse a signaling format such as PUCCH, PUSCH, PRACH, or new signaling existing in the current LTE system.
  • the channel occupied instruction includes time information occupied by the channel, starting point information occupied by the channel, and/or end point information occupied by the channel.
  • the resources used by the terminal to send the channel occupied command may be predefined, or may be configured through RRC, MAC CE, O&M or physical layer signaling.
  • the channel occupied command sent by the terminal to another terminal or other serving base station includes time information occupied by the channel, starting point information occupied by the channel, and end point information occupied by the channel, so that other serving base stations are facilitated according to
  • the end time occupied by the channel determines whether the channel is occupied and when the channel is occupied.
  • FIG. 6 shows a block diagram of a data transmission apparatus of a cell using an unlicensed spectrum providing service according to another embodiment of the present invention.
  • a data transmission apparatus 600 for a serving base station of a cell using an unlicensed spectrum providing service includes: a transmitting unit 602, and a receiving unit 604.
  • the sending unit 602 is configured to: when the serving base station needs to perform data interaction with the terminal through the downlink channel of the unlicensed spectrum, send channel occupation request information to the terminal; and the receiving unit 604, receive the channel occupation sent by the terminal. Confirmation information, and receiving a channel occupied command sent by other terminals when performing data interaction with other serving base stations through the downlink channel of the unlicensed spectrum, determining whether the channel is occupied according to the acknowledgement information occupied by the channel and the channel occupied instruction Occupy the downlink channel.
  • a serving base station When a serving base station performs data interaction with the terminal through the downlink channel of the unlicensed spectrum, if another serving base station also needs to perform data interaction with other terminals through the downlink channel, then if other serving base stations perform channel detection, due to other The serving base station and other terminals cannot detect the downlink transmission between the serving base station and the terminal. Therefore, other serving base stations can judge that the current channel is idle, thereby causing a problem of transmission collision.
  • the channel occupation request information is sent to the terminal, and the not only receives the acknowledgement information of the channel occupation from the terminal, but also the channel has been When occupied, receiving channel occupied information from other serving base stations, so that the serving base station can determine whether to occupy the channel according to the channel occupied acknowledgment information and channel occupied information, thereby avoiding possible transmission collision problems, thereby improving non- The validity of the licensed spectrum.
  • the sending unit 602 is specifically configured to: send the channel occupation request information to the terminal by using physical layer downlink control signaling or pilot information, where the channel occupation request information is The information includes time information occupied by the channel, starting point information occupied by the channel, end point information occupied by the channel, and/or time-frequency resource information occupied by the acknowledgement information for transmitting the occupied channel.
  • the serving base station sends the channel occupation request information by using the physical layer downlink control signaling for the public information transmission or the terminal, and the information includes the channel occupation time, the channel occupation starting point, the end point, and Terminal transmission acknowledges channel occupation request information occupation Information such as time-frequency resources.
  • the serving base station may send pilot information to notify the channel occupation time, the channel occupation starting point, the ending point, and the time-frequency resource occupied by the terminal transmission acknowledgement channel occupation request information.
  • the sending unit 602 is specifically configured to: indicate a time occupied by a channel in the channel occupation request information, and a channel occupation by using a time-frequency position of the pilot or a sequence used by the pilot.
  • the time-frequency position of the pilot or the sequence used by the pilot may be used to indicate information such as the channel occupation time, the channel occupation start point, the end point, and the time-frequency resource occupied by the terminal transmission acknowledgement channel occupation request information.
  • FIG. 7 shows a block diagram of a data transmission system of a cell using an unlicensed spectrum providing service according to another embodiment of the present invention.
  • a data transmission system 700 in a serving cell of an unlicensed spectrum including: the data transmission for the terminal according to any one of the foregoing technical solutions.
  • the data transmission system in the serving cell of the unlicensed spectrum has the same technical effect as the data transmission device of the cell that uses the unlicensed spectrum to provide the foregoing service, and details are not described herein.
  • the collision avoidance between the LAA systems is similar to the collision avoidance solution of the LAA system and the WiFi system.
  • the following describes the technique of the present invention by taking the collision avoidance between the LAA systems shown in FIG. 8 as an example. Program. (Where, it is assumed that the LAA base station 2 is occupying the channel, and the LAA base station 1 has downlink data for transmission. The LAA base station 1 will perform the CCA detection, since neither the LAA base station 1 nor the terminal 1 can detect the downlink transmission of the LAA system 2, the LAA Base station 1 will judge that the current channel is idle).
  • a specific process of a data transmission method for a cell using an unlicensed spectrum providing service includes:
  • the LAA base station 1 transmits channel occupation request information to the terminal 1.
  • the LAA base station 1 sends the channel occupation request information by using the physical layer downlink control signaling for the public information transmission or the terminal, and the information includes the channel occupation time, the channel occupation starting point, and the node.
  • the beam point, and the information such as the time-frequency resource occupied by the terminal transmission confirmation channel occupation request information.
  • the LAA base station 1 may send pilot information to notify the channel occupation time, the channel occupation start point, the end point, and the time-frequency resource occupied by the terminal transmission acknowledgement channel occupation request information.
  • the time-frequency position of the pilot or the sequence used by the pilot may be used to indicate the channel occupation time, the channel occupation start point, the end point, and the time-frequency resource occupied by the terminal transmission acknowledgement channel occupation request information.
  • Step 904 after receiving the physical layer downlink control signaling or pilot information of the LAA base station 1, the terminal 1 has two processing modes:
  • Step 9042 processing mode 1: If the current working mechanism is SDL, the terminal 1 will send the acknowledgement information of the channel occupation on the aggregated Pcell, and the Pcell informs the LAA base station 1 that the terminal 1 has confirmed the channel occupation through the backhaul signaling. Information. At the same time, the terminal 1 also transmits CTS information through the WiFi port on the unlicensed spectrum.
  • Step 9044, processing mode 2 If the current working mechanism is TDD, the terminal 1 will perform the time-frequency resource occupied by the terminal transmission confirmation request channel occupation request information indicated in step 1 or at a predefined time-frequency position.
  • the direct signaling of the uplink signaling indicates the information occupied by the acknowledgement channel.
  • the uplink control signaling can reuse the existing PUCCH, PUSCH, PRACH and other signaling formats or new signaling in the current LTE system.
  • Step 906 after receiving the interference from the LAA base station 1, the terminal 2 temporarily stops the data interaction with the LAA base station 2 and sends an indication that the channel has been occupied.
  • the indication includes information such as the end time of the channel occupation.
  • the time-frequency resource used to send the indication may be predefined or configurable. After the transmission is completed, the terminal 2 resumes the data transmission with the LAA base station 2.
  • Step 908 after receiving the indication from the terminal 2, the LAA base station 1 determines, according to the received information, that the channel is busy and the time occupied by the channel.
  • the technical solution of the present invention is described in detail above with reference to the accompanying drawings.
  • the technical solution of the present invention can avoid the problem of transmission collision between LAA systems on the unlicensed spectrum and between the LAA and the WiFi system.

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Abstract

本发明提出了一种使用非授权频谱提供服务的小区的数据传输方法、装置和系统，其中，方法包括：当服务基站通过非授权频谱的下行信道与所述终端进行数据交互时，若所述终端检测到其他服务基站需要通过所述非授权频谱的下行信道与其他终端进行数据交互，则暂停与所述服务基站之间的数据交互，并发送信道已占用指令至所述其他服务基站或所述其他终端，以供所述其他服务基站根据所述信道已占用指令确定是否占用所述下行信道。通过本发明的技术方案，可以避免在非授权频谱上的LAA系统之间以及LAA与WiFi系统之间的传输碰撞的问题。

Description

数据传输方法、数据传输装置和数据传输系统
本申请要求于2015年01月30日提交中国专利局，申请号为201510050474.1、发明名称为“数据传输方法、数据传输装置和数据传输系统”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
本发明涉及数据传输技术领域，具体而言，涉及一种使用非授权频谱提供服务的小区的数据传输方法、一种使用非授权频谱提供服务的小区的数据传输装置和一种使用非授权频谱提供服务的小区的数据传输系统。
背景技术
当前，随着移动业务的快速发展，现有的分配给移动业务的无线频谱的容量已经无法满足要求了。在3GPP Rel-13阶段，一种称作LAA(Licensed-Assisted Access)的机制被引入了。在LAA机制中，移动通信的传输可以在非授权频谱上承载，如5GHz的频段。在这些非授权频谱上，目前主要是WiFi，蓝牙，雷达，医疗等系统在使用。
由于非授权频谱上系统的多样性和复杂性，直接把LTE的机制用于非授权频谱上是无法保证用户的安全性以及连接的稳定性的。因此，在LAA的机制中，通过CA机制，使用授权频谱来帮助非授权频谱上的接入。目前，在非授权频谱上使用LTE的话，系统可以有两种工作方式，如图1A所示，一种是补充下行SDL(Supplemental Downlink，辅助下行传输)，即只有下行传输子帧；如图1B所示，另一种是TDD(Time Division Duplex，时分双工)模式，上下行传输子帧都包含。补充下行这种情况只能是借助载波聚合技术使用。
在非授权频谱上使用LAA，首先要解决的是共存的问题。共存的一个基本的原则是不同的系统可以公平的去占用非授权频段。共存的问题包括LAA与LAA之间的共存，同时也包括LAA与其他非授权系统的共存如 WiFi。
由于目前的LAA基站并不具备WiFi的功能，也就是说传统的WiFi系统中实现WiFi之间共存的信令无法直接应用到LAA的系统中。因此，可能会存在传输碰撞的问题。如图2所示，LAA系统与WiFi系统的共存场景，由于LAA基站和服务的终端1无法检测到WiFi AP对于终端2的传输，LAA基站会认为当前的信道是空闲的，从而发送数据给服务终端1。因此LAA的传输会干扰到终端2的数据接收。同样的问题也会出现在LAA系统与LAA系统之间的共存场景。
因此需要一种新的技术方案，可以避免在非授权频谱上的LAA系统之间以及LAA与WiFi系统之间的传输碰撞的问题。
发明内容
本发明正是基于上述问题，提出了一种新的技术方案，可以避免在非授权频谱上的LAA系统之间以及LAA与WiFi系统之间的传输碰撞的问题。
有鉴于此，本发明提出了一种使用非授权频谱提供服务的小区的数据传输方法，用于终端，包括：当服务基站通过非授权频谱的下行信道与所述终端进行数据交互时，若所述终端检测到其他服务基站需要通过所述非授权频谱的下行信道与其他终端进行数据交互，则暂停与所述服务基站之间的数据交互，并发送信道已占用指令至所述其他服务基站或所述其他终端，以供所述其他服务基站根据所述信道已占用指令确定是否占用所述下行信道。
当一个服务基站通过非授权频谱的下行信道与终端进行数据交互时，如果另一个其他服务基站也需要通过该下行信道与其他终端进行数据交互，则此时若其他服务基站进行信道检测，由于其他服务基站和其他终端都无法检测到服务基站与终端之间的下行传输，因此，其他服务基站会判断当前的信道是空闲的，从而造成传输碰撞的问题。在该技术方案中，当终端检测到其他服务基站也需要通过非授权频谱的下行信道进行数据交互时，即在接收到来自其他服务基站的干扰时，暂停与终端之间的数据交互， 并发送一个信道已占用指令，这样，其他服务基站在接收到信道已占用指令时就会知晓该信道已经被占用，从而避免可能出现的传输碰撞问题，从而提高非授权频谱的有效性。
其中，服务基站既可以是LAA基站，也可以是WIFI基站。
在上述技术方案中，优选地，还包括：在所述终端发送完所述信道已占用指令后，重新恢复与所述服务基站之间的数据交互。
在该技术方案中，在终端发送完信道已占用指令后，重新恢复与服务基站之间的数据交互，这样，可以保证服务基站和终端之间的正常传输，提升用户的使用体验。
在上述技术方案中，优选地，还包括：在所述终端与所述服务基站进行数据交互前，接收所述服务基站在需要通过所述下行信道进行数据交互时发送的信道占用请求信息，并在接收到所述信道占用请求信息后，发送信道占用的确认信息至所述服务基站，其中，所述信道占用请求信息中包括信道占用的时间信息、信道占用的起始点信息、信道占用的结束点信息和/或传输所述信道占用的确认信息所占用的时频资源信息。
在该技术方案中，在服务基站需要通过下行信道与终端进行交互时，需要发送信道占用请求信息，该信道占用请求信息中包括信道占用的时间信息、信道占用的起始点信息、信道占用的结束点信息和/或传输所述信道占用的确认信息所占用的时频资源信息等，从而使得终端可以根据这些信道占用请求信息，确定是否发送信道占用的确认信息至服务基站。
在上述技术方案中，优选地，所述发送信道占用的确认信息至所述服务基站，具体包括：判断所述终端当前的工作机制；当所述当前的工作机制为辅助下行工作传输机制时，所述终端通过聚合的主服务小区所使用的载波发送所述信道占用的确认信息至所述服务基站；当所述当前的工作机制为时分双工传输机制时，所述终端通过所述信道占用请求信息的所述时频资源信息中的时频资源，或者通过预定义的时频资源发送所述信道占用的确认信息至所述服务基站。
在该技术方案中，当终端服务基站的信道占用信息信道占用请求信息之后，有两种处理方式：处理方式1，如果当前的工作机制是辅助下行工 作传输机制的情况下，终端将会在聚合的主服务小区所使用的载波上发送信道占用的确认信息，主服务小区所使用的载波通过backhaul信令通知服务基站终端已经确认了信道占用的信息，同时终端也在非授权频谱上通过WiFi端口发送CTS信息。处理方式2，如果当前的工作机制是时分双工传输机制的情况下，终端将会在信道占用信息信道占用请求信息指示的终端传输确认信道占用信息信道占用请求信息占用的时频资源上或是预先定义的时频位置上直接发送上行控制信令指示确认信道占用的信息。具体地，上行控制信令可以复用目前LTE(Long Term Evolution，长期演进)系统中已有的PUCCH(Physical Uplink Control CHannel，物理上行控制信道)，PUSCH(Physical Uplink Shared CHannel，物理上行共享信道)，PRACH(Physical Random Access CHannel)，物理随机接入信道)等信令格式或是新的信令。
在上述技术方案中，优选地，所述信道已占用指令中包括信道占用的时间信息、信道占用的起始点信息、和/或信道占用的结束点信息。另外，终端发送信道已占用指令所使用的资源可以是预先定义的，也可以是通过RRC(Radio Resource Control，无线资源控制)，MAC CE(Medium Access Control，Control Element，媒体接入控制控制元素)，O&M(Operation and Management，操作和管理)或是物理层信令配置的。
在该技术方案中，在终端发送给其他终端或其他服务基站的信道已占用指令中包含信道占用的时间信息、信道占用的起始点信息和信道占用的结束点信息，这样，便于其他服务基站根据该信道占用的结束时间决定是否占用信道，以及何时占用信道。
根据本发明的另一方面，还提供了一种使用非授权频谱提供服务的小区的数据传输方法，用于服务基站，包括：当所述服务基站需要通过非授权频谱的下行信道与终端进行数据交互时，发送信道占用请求信息至所述终端；接收所述终端发送的信道占用的确认信息，以及接收其他终端在通过所述非授权频谱的下行信道与其他服务基站进行数据交互时发送的信道已占用指令，根据所述信道占用的确认信息和所述信道已占用指令确定是否占用所述下行信道。
当一个服务基站通过非授权频谱的下行信道与终端进行数据交互时，如果另一个其他服务基站也需要通过该下行信道与其他终端进行数据交互，则此时若其他服务基站进行信道检测，由于其他服务基站和其他终端都无法检测到服务基站与终端之间的下行传输，因此，其他服务基站会判断当前的信道是空闲的，从而造成传输碰撞的问题。在该技术方案中，当服务基站需要使用非授权频谱的下行信道进行数据交互时，会发送信道占用请求信息至终端，并且其不但接收来自终端的信道占用的确认信息，还会在该信道已被占用时，接收来自其他服务基站的信道已占用信息，这样，服务基站就可以根据信道占用的确认信息和信道已占用信息确定是否占用该信道，从而避免可能出现的传输碰撞问题，从而提高非授权频谱的有效性。
在上述技术方案中，优选地，还包括：所述服务基站通过物理层下行控制信令或导频信息发送所述信道占用请求信息至所述终端，其中，所述信道占用请求信息中包括信道占用的时间信息、信道占用的起始点信息、信道占用的结束点信息和/或传输所述信道占用的确认信息所占用的时频资源信息。
在该技术方案中，服务基站会通过用于公共信息传输或是终端专属的物理层下行控制信令发送信道占用请求信息，该信息中包含了信道占用时间，信道占用起始点，结束点，以及终端传输确认信道占用请求信息占用的时频资源等信息。或者服务基站会发送导频信息用来通知信道占用时间，信道占用起始点，结束点以及终端传输确认信道占用请求信息占用的时频资源等信息。
在上述技术方案中，优选地，通过所述导频信息发送所述信道占用请求信息具体包括：通过导频的时频位置或所述导频使用的序列来指示所述信道占用请求信息中的信道占用的时间、信道占用的起始点、信道占用的结束点和/或传输所述信道占用的确认信息所占用的时频资源。
具体地，可以通过导频的时频位置或是导频使用的序列来指示信道占用时间，信道占用起始点，结束点以及终端传输确认信道占用请求信息占用的时频资源等信息。
根据本发明的再一方面，还提供了一种使用非授权频谱提供服务的小区的数据传输装置，用于终端，包括：处理单元，当服务基站通过非授权频谱的下行信道与所述终端进行数据交互时，若检测到其他服务基站需要通过所述非授权频谱的下行信道与其他终端进行数据交互，则暂停与所述服务基站之间的数据交互，并发送信道已占用指令至所述其他服务基站或所述其他终端，以供所述其他服务基站根据所述信道已占用指令确定是否占用所述下行信道。
当一个服务基站通过非授权频谱的下行信道与终端进行数据交互时，如果另一个其他服务基站也需要通过该下行信道与其他终端进行数据交互，则此时若其他服务基站进行信道检测，由于其他服务基站和其他终端都无法检测到服务基站与终端之间的下行传输，因此，其他服务基站会判断当前的信道是空闲的，从而造成传输碰撞的问题。在该技术方案中，当终端检测到其他服务基站也需要通过非授权频谱的下行信道进行数据交互时，即在接收到来自其他服务基站的干扰时，暂停与终端之间的数据交互，并发送一个信道已占用指令，这样，其他服务基站在接收到信道已占用指令时就会知晓该信道已经被占用，从而避免可能出现的传输碰撞问题，从而提高非授权频谱的有效性。
其中，服务基站既可以是LAA基站，也可以是WIFI基站。
在上述技术方案中，优选地，还包括：恢复单元，在所述终端发送完所述信道已占用指令后，重新恢复与所述服务基站之间的数据交互。
在该技术方案中，在终端发送完信道已占用指令后，重新恢复与服务基站之间的数据交互，这样，可以保证服务基站和终端之间的正常传输，提升用户的使用体验。
在上述技术方案中，优选地，还包括：交互单元，在所述终端与所述服务基站进行数据交互前，接收所述服务基站在需要通过所述下行信道进行数据交互时发送的信道占用请求信息，并在接收到所述信道占用请求信息后，发送信道占用的确认信息至所述服务基站，其中，所述信道占用请求信息中包括信道占用的时间信息、信道占用的起始点信息、信道占用的结束点信息和/或传输所述信道占用的确认信息所占用的时频资源信息。
在该技术方案中，在服务基站需要通过下行信道与终端进行交互时，需要发送信道占用请求信息，该信道占用请求信息中包括信道占用的时间信息、信道占用的起始点信息、信道占用的结束点信息和/或传输所述信道占用的确认信息所占用的时频资源信息等，从而使得终端可以根据这些信道占用请求信息，确定是否发送信道占用的确认信息至服务基站。
在上述技术方案中，优选地，所述交互单元具体用于：判断所述终端当前的工作机制；当所述当前的工作机制为辅助下行工作传输机制时，所述终端通过聚合的主服务小区所使用的载波发送所述信道占用的确认信息至所述服务基站；当所述当前的工作机制为时分双工传输机制时，所述终端通过所述信道占用请求信息的所述时频资源信息中的时频资源，或者通过预定义的时频资源发送所述信道占用的确认信息至所述服务基站。
在该技术方案中，当终端服务基站的信道占用请求信息之后，有两种处理方式：处理方式1，如果当前的工作机制是辅助下行工作传输机制的情况下，终端将会在聚合的主服务小区所使用的载波上发送信道占用的确认信息，主服务小区所使用的载波通过backhaul信令通知服务基站终端已经确认了信道占用的信息，同时终端也在非授权频谱上通过WiFi端口发送CTS信息。处理方式2，如果当前的工作机制是时分双工传输机制的情况下，终端将会在信道占用请求信息指示的终端传输确认信道占用请求信息占用的时频资源上或是预先定义的时频位置上直接发送上行控制信令指示确认信道占用的信息。具体地，上行控制信令可以复用目前LTE系统中已有的PUCCH，PUSCH，PRACH等信令格式或是新的信令。
在上述技术方案中，优选地，所述信道已占用指令中包括信道占用的时间信息、信道占用的起始点信息和/或信道占用的结束点信息。另外，终端发送信道已占用指令所使用的资源可以是预先定义的，也可以是通过RRC，MAC CE，O&M或是物理层信令配置的。
在该技术方案中，在终端发送给其他终端或其他服务基站的信道已占用指令中包含信道占用的时间信息、信道占用的起始点信息和信道占用的结束点信息，这样，便于其他服务基站根据该信道占用的结束时间决定是否占用信道，以及何时占用信道。
根据本发明的另一方面，还提供了一种使用非授权频谱提供服务的小区的数据传输装置，用于服务基站，包括：发送单元，当所述服务基站需要通过非授权频谱的下行信道与终端进行数据交互时，发送信道占用请求信息至所述终端；以及接收单元，接收所述终端发送的信道占用的确认信息，以及接收其他终端在通过所述非授权频谱的下行信道与其他服务基站进行数据交互时发送的信道已占用指令，根据所述信道占用的确认信息和所述信道已占用指令确定是否占用所述下行信道。
当一个服务基站通过非授权频谱的下行信道与终端进行数据交互时，如果另一个其他服务基站也需要通过该下行信道与其他终端进行数据交互，则此时若其他服务基站进行信道检测，由于其他服务基站和其他终端都无法检测到服务基站与终端之间的下行传输，因此，其他服务基站会判断当前的信道是空闲的，从而造成传输碰撞的问题。在该技术方案中，当服务基站需要使用非授权频谱的下行信道进行数据交互时，会发送信道占用请求信息至终端，并且其不但接收来自终端的信道占用的确认信息，还会在该信道已被占用时，接收来自其他服务基站的信道已占用信息，这样，服务基站就可以根据信道占用的确认信息和信道已占用信息确定是否占用该信道，从而避免可能出现的传输碰撞问题，从而提高非授权频谱的有效性。
在上述技术方案中，优选地，所述发送单元具体用于：通过物理层下行控制信令或导频信息发送所述信道占用请求信息至所述终端，其中，所述信道占用请求信息中包括信道占用的时间信息、信道占用的起始点信息、信道占用的结束点信息和/或传输所述信道占用的确认信息所占用的时频资源信息。
在该技术方案中，服务基站会通过用于公共信息传输或是终端专属的物理层下行控制信令发送信道占用请求信息，该信息中包含了信道占用时间，信道占用起始点，结束点，以及终端传输确认信道占用请求信息占用的时频资源等信息。或者服务基站会发送导频信息用来通知信道占用时间，信道占用起始点，结束点以及终端传输确认信道占用请求信息占用的时频资源等信息。
在上述技术方案中，优选地，所述发送单元具体用于：通过导频的时频位置或所述导频使用的序列来指示所述信道占用请求信息中的信道占用的时间、信道占用的起始点、信道占用的结束点和/或传输所述信道占用的确认信息所占用的时频资源。
具体地，可以通过导频的时频位置或是导频使用的序列来指示信道占用时间，信道占用起始点，结束点以及终端传输确认信道占用请求信息占用的时频资源等信息。
根据本发明的再一方面，还提供了一种非授权频谱的服务小区中的数据传输系统，包括：上述技术方案中任一项所述的用于终端的使用非授权频谱提供服务的小区的数据传输装置；以及上述技术方案中任一项所述的用于服务基站的使用非授权频谱提供服务的小区的数据传输装置。其中，非授权频谱的服务小区中的数据传输系统具有与上述使用非授权频谱提供服务的小区的数据传输装置相同的技术效果，在此不再赘述。
通过以上技术方案，可以避免在非授权频谱上的LAA系统之间以及LAA与WiFi系统之间的传输碰撞的问题。
附图说明
图1A和图1B示出了相关技术中SDL模式和TDD模式的示意图；
图2示出了使用非授权频谱提供服务的小区进行数据传输的结构示意图；
图3示出了根据本发明的一个实施例的使用非授权频谱提供服务的小区的数据传输方法的流程图；
图4示出了根据本发明的另一个实施例的使用非授权频谱提供服务的小区的数据传输方法的流程图；
图5示出了根据本发明的一个实施例的使用非授权频谱提供服务的小区的数据传输装置的框图；
图6示出了根据本发明的另一个实施例的使用非授权频谱提供服务的小区的数据传输装置的框图；
图7示出了根据本发明的另一个实施例的使用非授权频谱提供服务的 小区的数据传输系统的框图；
图8示出了使用非授权频谱提供服务的小区进行数据传输的结构示意图；
图9示出了根据本发明的一个实施例的使用非授权频谱提供服务的小区的数据传输方法的具体流程图。
具体实施方式
为了能够更清楚地理解本发明的上述目的、特征和优点，下面结合附图和具体实施方式对本发明进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是，本发明还可以采用其他不同于在此描述的其他方式来实施，因此，本发明的保护范围并不受下面公开的具体实施例的限制。
图3示出了根据本发明的一个实施例的使用非授权频谱提供服务的小区的数据传输方法的流程图。
如图3所示，根据本发明的一个实施例的使用非授权频谱提供服务的小区的数据传输方法，用于终端，包括：步骤302，当服务基站通过非授权频谱的下行信道与所述终端进行数据交互时，若所述终端检测到其他服务基站需要通过所述非授权频谱的下行信道与其他终端进行数据交互，则暂停与所述服务基站之间的数据交互，并发送信道已占用指令至所述其他服务基站或所述其他终端，以供所述其他服务基站根据所述信道已占用指令确定是否占用所述下行信道。
当一个服务基站通过非授权频谱的下行信道与终端进行数据交互时，如果另一个其他服务基站也需要通过该下行信道与其他终端进行数据交互，则此时若其他服务基站进行信道检测，由于其他服务基站和其他终端都无法检测到服务基站与终端之间的下行传输，因此，其他服务基站会判断当前的信道是空闲的，从而造成传输碰撞的问题。在该技术方案中，当终端检测到其他服务基站也需要通过非授权频谱的下行信道进行数据交互时，即在接收到来自其他服务基站的干扰时，暂停与终端之间的数据交互， 并发送一个信道已占用指令，这样，其他服务基站在接收到信道已占用指令时就会知晓该信道已经被占用，从而避免可能出现的传输碰撞问题，从而提高非授权频谱的有效性。
其中，服务基站既可以是LAA基站，也可以是WIFI基站。
在上述技术方案中，优选地，还包括：在所述终端发送完所述信道已占用指令后，重新恢复与所述服务基站之间的数据交互。
在该技术方案中，在终端发送完信道已占用指令后，重新恢复与服务基站之间的数据交互，这样，可以保证服务基站和终端之间的正常传输，提升用户的使用体验。
在上述技术方案中，优选地，还包括：在所述终端与所述服务基站进行数据交互前，接收所述服务基站在需要通过所述下行信道进行数据交互时发送的信道占用请求信息，并在接收到所述信道占用请求信息后，发送信道占用的确认信息至所述服务基站，其中，所述信道占用请求信息中包括信道占用的时间信息、信道占用的起始点信息、信道占用的结束点信息和/或传输所述信道占用的确认信息所占用的时频资源信息。
在该技术方案中，在服务基站需要通过下行信道与终端进行交互时，需要发送信道占用请求信息，该信道占用请求信息中包括信道占用的时间信息、信道占用的起始点信息、信道占用的结束点信息和/或传输所述信道占用的确认信息所占用的时频资源信息等，从而使得终端可以根据这些信道占用请求信息，确定是否发送信道占用的确认信息至服务基站。
在上述技术方案中，优选地，所述发送信道占用的确认信息至所述服务基站，具体包括：判断所述终端当前的工作机制；当所述当前的工作机制为辅助下行工作传输机制时，所述终端通过聚合的主服务小区所使用的载波发送所述信道占用的确认信息至所述服务基站；当所述当前的工作机制为时分双工传输机制时，所述终端通过所述信道占用请求信息的所述时频资源信息中的时频资源，或者通过预定义的时频资源发送所述信道占用的确认信息至所述服务基站。
在该技术方案中，当终端服务基站的信道占用请求信息之后，有两种处理方式：处理方式1，如果当前的工作机制是辅助下行工作传输机制的 情况下，终端将会在聚合的主服务小区所使用的载波上发送信道占用的确认信息，主服务小区所使用的载波通过backhaul信令通知服务基站终端已经确认了信道占用的信息，同时终端也在非授权频谱上通过WiFi端口发送CTS信息。处理方式2，如果当前的工作机制是时分双工传输机制的情况下，终端将会在信道占用请求信息指示的终端传输确认信道占用请求信息占用的时频资源上或是预先定义的时频位置上直接发送上行控制信令指示确认信道占用的信息。具体地，上行控制信令可以复用目前LTE系统中已有的PUCCH，PUSCH，PRACH等信令格式或是新的信令。
在上述技术方案中，优选地，所述信道已占用指令中包括信道占用的时间信息、信道占用的起始点信息和/或信道占用的结束点信息。另外，终端发送信道已占用指令所使用的资源可以是预先定义的，也可以是通过RRC，MAC CE，O&M或是物理层信令配置的。
在该技术方案中，在终端发送给其他终端或其他服务基站的信道已占用指令中包含信道占用的时间信息、信道占用的起始点信息和信道占用的结束点信息，这样，便于其他服务基站根据该信道占用的结束时间决定是否占用信道，以及何时占用信道。
图4示出了根据本发明的另一个实施例的使用非授权频谱提供服务的小区的数据传输方法的流程图。
如图4所示，根据本发明的实施例的一种使用非授权频谱提供服务的小区的数据传输方法，用于服务基站，包括：步骤402，当所述服务基站需要通过非授权频谱的下行信道与终端进行数据交互时，发送信道占用请求信息至所述终端；步骤404，接收所述终端发送的信道占用的确认信息，以及接收其他终端在通过所述非授权频谱的下行信道与其他服务基站进行数据交互时发送的信道已占用指令，根据所述信道占用的确认信息和所述信道已占用指令确定是否占用所述下行信道。
当一个服务基站通过非授权频谱的下行信道与终端进行数据交互时，如果另一个其他服务基站也需要通过该下行信道与其他终端进行数据交互，则此时若其他服务基站进行信道检测，由于其他服务基站和其他终端都无法检测到服务基站与终端之间的下行传输，因此，其他服务基站会判 断当前的信道是空闲的，从而造成传输碰撞的问题。在该技术方案中，当服务基站需要使用非授权频谱的下行信道进行数据交互时，会发送信道占用请求信息至终端，并且其不但接收来自终端的信道占用的确认信息，还会在该信道已被占用时，接收来自其他服务基站的信道已占用信息，这样，服务基站就可以根据信道占用的确认信息和信道已占用信息确定是否占用该信道，从而避免可能出现的传输碰撞问题，从而提高非授权频谱的有效性。
在上述技术方案中，优选地，还包括：所述服务基站通过物理层下行控制信令或导频信息发送所述信道占用请求信息至所述终端，其中，所述信道占用请求信息中包括信道占用的时间信息、信道占用的起始点信息、信道占用的结束点信息和/或传输所述信道占用的确认信息所占用的时频资源信息。
在该技术方案中，服务基站会通过用于公共信息传输或是终端专属的物理层下行控制信令发送信道占用请求信息，该信息中包含了信道占用时间，信道占用起始点，结束点，以及终端传输确认信道占用请求信息占用的时频资源等信息。或者服务基站会发送导频信息用来通知信道占用时间，信道占用起始点，结束点以及终端传输确认信道占用请求信息占用的时频资源等信息。
在上述技术方案中，优选地，通过所述导频信息发送所述信道占用请求信息具体包括：通过导频的时频位置或所述导频使用的序列来指示所述信道占用请求信息中的信道占用的时间、信道占用的起始点、信道占用的结束点和/或传输所述信道占用的确认信息所占用的时频资源。
具体地，可以通过导频的时频位置或是导频使用的序列来指示信道占用时间，信道占用起始点，结束点以及终端传输确认信道占用请求信息占用的时频资源等信息。
图5示出了根据本发明的一个实施例的使用非授权频谱提供服务的小区的数据传输装置的框图。
如图5所示，根据本发明的实施例的一种使用非授权频谱提供服务的小区的用于终端的数据传输装置500，包括：处理单元502、恢复单元504 和交互单元506。
其中，处理单元502用于：当服务基站通过非授权频谱的下行信道与所述终端进行数据交互时，若检测到其他服务基站需要通过所述非授权频谱的下行信道与其他终端进行数据交互，则暂停与所述服务基站之间的数据交互，并发送信道已占用指令至所述其他服务基站或所述其他终端，以供所述其他服务基站根据所述信道已占用指令确定是否占用所述下行信道。
当一个服务基站通过非授权频谱的下行信道与终端进行数据交互时，如果另一个其他服务基站也需要通过该下行信道与其他终端进行数据交互，则此时若其他服务基站进行信道检测，由于其他服务基站和其他终端都无法检测到服务基站与终端之间的下行传输，因此，其他服务基站会判断当前的信道是空闲的，从而造成传输碰撞的问题。在该技术方案中，当终端检测到其他服务基站也需要通过非授权频谱的下行信道进行数据交互时，即在接收到来自其他服务基站的干扰时，暂停与终端之间的数据交互，并发送一个信道已占用指令，这样，其他服务基站在接收到信道已占用指令时就会知晓该信道已经被占用，从而避免可能出现的传输碰撞问题，从而提高非授权频谱的有效性。
其中，服务基站既可以是LAA基站，也可以是WIFI基站。
在上述技术方案中，优选地，恢复单元504用于在所述终端发送完所述信道已占用指令后，重新恢复与所述服务基站之间的数据交互。
在该技术方案中，在终端发送完信道已占用指令后，重新恢复与服务基站之间的数据交互，这样，可以保证服务基站和终端之间的正常传输，提升用户的使用体验。
在上述技术方案中，优选地，交互单元506用于在所述终端与所述服务基站进行数据交互前，接收所述服务基站在需要通过所述下行信道进行数据交互时发送的信道占用请求信息，并在接收到所述信道占用请求信息后，发送信道占用的确认信息至所述服务基站，其中，所述信道占用请求信息中包括信道占用的时间信息、信道占用的起始点信息、信道占用的结束点信息和/或传输所述信道占用的确认信息所占用的时频资源信息。
在该技术方案中，在服务基站需要通过下行信道与终端进行交互时，需要发送信道占用请求信息，该信道占用请求信息中包括信道占用的时间信息、信道占用的起始点信息、信道占用的结束点信息和/或传输所述信道占用的确认信息所占用的时频资源信息等，从而使得终端可以根据这些信道占用请求信息，确定是否发送信道占用的确认信息至服务基站。
在上述技术方案中，优选地，所述交互单元506具体用于：判断所述终端当前的工作机制；当所述当前的工作机制为辅助下行工作传输机制时，所述终端通过聚合的主服务小区所使用的载波发送所述信道占用的确认信息至所述服务基站；当所述当前的工作机制为时分双工传输机制时，所述终端通过所述信道占用请求信息的所述时频资源信息中的时频资源，或者通过预定义的时频资源发送所述信道占用的确认信息至所述服务基站。
在该技术方案中，当终端服务基站的信道占用请求信息之后，有两种处理方式：处理方式1，如果当前的工作机制是辅助下行工作传输机制的情况下，终端将会在聚合的主服务小区所使用的载波上发送信道占用的确认信息，主服务小区所使用的载波通过backhaul信令通知服务基站终端已经确认了信道占用的信息，同时终端也在非授权频谱上通过WiFi端口发送CTS信息。处理方式2，如果当前的工作机制是时分双工传输机制的情况下，终端将会在信道占用请求信息指示的终端传输确认信道占用请求信息占用的时频资源上或是预先定义的时频位置上直接发送上行控制信令指示确认信道占用的信息。具体地，上行控制信令可以复用目前LTE系统中已有的PUCCH，PUSCH，PRACH等信令格式或是新的信令。
在上述技术方案中，优选地，所述信道已占用指令中包括信道占用的时间信息、信道占用的起始点信息和/或信道占用的结束点信息。另外，终端发送信道已占用指令所使用的资源可以是预先定义的，也可以是通过RRC，MAC CE，O&M或是物理层信令配置的。
在该技术方案中，在终端发送给其他终端或其他服务基站的信道已占用指令中包含信道占用的时间信息、信道占用的起始点信息和信道占用的结束点信息，这样，便于其他服务基站根据该信道占用的结束时间决定是否占用信道，以及何时占用信道。
图6示出了根据本发明的另一个实施例的使用非授权频谱提供服务的小区的数据传输装置的框图。
如图6所示，根据本发明的实施例的使用非授权频谱提供服务的小区的用于服务基站的数据传输装置600，包括：发送单元602，接收单元604。
其中，发送单元602用于当所述服务基站需要通过非授权频谱的下行信道与终端进行数据交互时，发送信道占用请求信息至所述终端；以及接收单元604，接收所述终端发送的信道占用的确认信息，以及接收其他终端在通过所述非授权频谱的下行信道与其他服务基站进行数据交互时发送的信道已占用指令，根据所述信道占用的确认信息和所述信道已占用指令确定是否占用所述下行信道。
当一个服务基站通过非授权频谱的下行信道与终端进行数据交互时，如果另一个其他服务基站也需要通过该下行信道与其他终端进行数据交互，则此时若其他服务基站进行信道检测，由于其他服务基站和其他终端都无法检测到服务基站与终端之间的下行传输，因此，其他服务基站会判断当前的信道是空闲的，从而造成传输碰撞的问题。在该技术方案中，当服务基站需要使用非授权频谱的下行信道进行数据交互时，会发送信道占用请求信息至终端，并且其不但接收来自终端的信道占用的确认信息，还会在该信道已被占用时，接收来自其他服务基站的信道已占用信息，这样，服务基站就可以根据信道占用的确认信息和信道已占用信息确定是否占用该信道，从而避免可能出现的传输碰撞问题，从而提高非授权频谱的有效性。
在上述技术方案中，优选地，所述发送单元602具体用于：通过物理层下行控制信令或导频信息发送所述信道占用请求信息至所述终端，其中，所述信道占用请求信息中包括信道占用的时间信息、信道占用的起始点信息、信道占用的结束点信息和/或传输所述信道占用的确认信息所占用的时频资源信息。
在该技术方案中，服务基站会通过用于公共信息传输或是终端专属的物理层下行控制信令发送信道占用请求信息，该信息中包含了信道占用时间，信道占用起始点，结束点，以及终端传输确认信道占用请求信息占用 的时频资源等信息。或者服务基站会发送导频信息用来通知信道占用时间，信道占用起始点，结束点以及终端传输确认信道占用请求信息占用的时频资源等信息。
在上述技术方案中，优选地，所述发送单元602具体用于：通过导频的时频位置或所述导频使用的序列来指示所述信道占用请求信息中的信道占用的时间、信道占用的起始点、信道占用的结束点和/或传输所述信道占用的确认信息所占用的时频资源。
具体地，可以通过导频的时频位置或是导频使用的序列来指示信道占用时间，信道占用起始点，结束点以及终端传输确认信道占用请求信息占用的时频资源等信息。
图7示出了根据本发明的另一个实施例的使用非授权频谱提供服务的小区的数据传输系统的框图。
如图7所示，根据本发明的再一方面，还提供了一种非授权频谱的服务小区中的数据传输系统700，包括：上述技术方案中任一项所述的用于终端的数据传输装置500；以及上述技术方案中任一项所述的用于服务基站的数据传输装置600。其中，非授权频谱的服务小区中的数据传输系统具有与上述使用非授权频谱提供服务的小区的数据传输装置相同的技术效果，在此不再赘述。
在本发明中，LAA系统之间的碰撞避免和LAA系统与WiFi系统的碰撞避免的解决方案是相似的，下面以图8所示的LAA系统之间的碰撞避免为例来说明本发明的技术方案。(其中，假定LAA基站2正在占用信道，而LAA基站1有下行数据进行传输。LAA基站1会去做CCA检测，由于LAA基站1以及终端1都无法检测到LAA系统2的下行传输，因此LAA基站1会判断当前的信道是空闲的)。
如图9所示，根据本发明的一个实施例的使用非授权频谱提供服务的小区的数据传输方法的具体流程包括：
步骤902，LAA基站1发送信道占用请求信息至终端1。具体地，LAA基站1会通过用于公共信息传输或是终端专属的物理层下行控制信令发送信道占用请求信息，该信息中包含了信道占用时间，信道占用起始点，结 束点，以及终端传输确认信道占用请求信息占用的时频资源等信息。或者LAA基站1会发送导频信息用来通知信道占用时间，信道占用起始点，结束点以及终端传输确认信道占用请求信息占用的时频资源等信息。具体的可以通过导频的时频位置或是导频使用的序列来指示信道占用时间，信道占用起始点，结束点以及终端传输确认信道占用请求信息占用的时频资源等信息。
步骤904，终端1在收到LAA基站1的物理层下行控制信令或是导频信息后，有两种处理方式：
步骤9042，处理方式1：如果当前的工作机制是SDL的情况下，终端1将会通过聚合的Pcell上发送信道占用的确认信息，Pcell通过backhaul信令通知LAA基站1终端1已经确认了信道占用的信息。同时终端1也在非授权频谱上通过WiFi端口发送CTS信息。
步骤9044，处理方式2：如果当前的工作机制是TDD的情况下，终端1将会在步骤1中指示的终端传输确认信道占用请求信息占用的时频资源上或是预先定义的时频位置上直接发送上行信令指示确认信道占用的信息。上行控制信令可以复用目前LTE系统中已有的PUCCH，PUSCH，PRACH等信令格式或是新的信令。
步骤906，终端2在接收到来自LAA基站1的干扰后，会暂时停止与LAA基站2的数据交互，并且发送一个信道已经占用的指示。该指示中包括信道占用的结束时间等信息。发送指示占用的时频资源可以是预先定义好的或是可以配置的。发送结束后，终端2会恢复与LAA基站2的数据传输。
步骤908，LAA基站1接收到了来自终端2的指示后，根据接收到的信息来确定信道是忙的以及信道占用的时间。
以上结合附图详细说明了本发明的技术方案，通过本发明的技术方案，可以避免在非授权频谱上的LAA系统之间以及LAA与WiFi系统之间的传输碰撞的问题。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。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。

Claims (17)

  1. 一种使用非授权频谱提供服务的小区的数据传输方法，用于终端，其特征在于，包括：
    当服务基站通过非授权频谱的下行信道与所述终端进行数据交互时，若所述终端检测到其他服务基站需要通过所述非授权频谱的下行信道与其他终端进行数据交互，则暂停与所述服务基站之间的数据交互，并发送信道已占用指令至所述其他服务基站或所述其他终端，以供所述其他服务基站根据所述信道已占用指令确定是否占用所述下行信道。
  2. 根据权利要求1所述的使用非授权频谱提供服务的小区的数据传输方法，其特征在于，还包括：
    在所述终端发送完所述信道已占用指令后，重新恢复与所述服务基站之间的数据交互。
  3. 根据权利要求1所述的使用非授权频谱提供服务的小区的数据传输方法，其特征在于，还包括：
    在所述终端与所述服务基站进行数据交互前，接收所述服务基站在需要通过所述下行信道进行数据交互时发送的信道占用请求信息，并在接收到所述信道占用请求信息后，发送信道占用的确认信息至所述服务基站，其中，所述信道占用请求信息中包括信道占用的时间信息、信道占用的起始点信息、信道占用的结束点信息和/或传输所述信道占用的确认信息所占用的时频资源信息。
  4. 根据权利要求3所述的使用非授权频谱提供服务的小区的数据传输方法，其特征在于，所述发送信道占用的确认信息至所述服务基站，具体包括：
    判断所述终端当前的工作机制；
    当所述当前的工作机制为辅助下行工作传输机制时，所述终端通过聚合的主服务小区所使用的载波发送所述信道占用的确认信息至所述服务基站；
    当所述当前的工作机制为时分双工传输机制时，所述终端通过所述信 道占用请求信息的所述时频资源信息中的时频资源，或者通过预定义的时频资源发送所述信道占用的确认信息至所述服务基站。
  5. 根据权利要求1至4中任一项所述的使用非授权频谱提供服务的小区的数据传输方法，其特征在于，所述信道已占用指令中包括信道占用的时间信息、信道占用的起始点信息和/或信道占用的结束点信息。
  6. 一种使用非授权频谱提供服务的小区的数据传输方法，用于服务基站，其特征在于，包括：
    当所述服务基站需要通过非授权频谱的下行信道与终端进行数据交互时，发送信道占用请求信息至所述终端；
    接收所述终端发送的信道占用的确认信息，以及接收其他终端在通过所述非授权频谱的下行信道与其他服务基站进行数据交互时发送的信道已占用指令，根据所述信道占用的确认信息和所述信道已占用指令确定是否占用所述下行信道。
  7. 根据权利要求6所述的使用非授权频谱提供服务的小区的数据传输方法，其特征在于，还包括：
    所述服务基站通过物理层下行控制信令或导频信息发送所述信道占用请求信息至所述终端，其中，所述信道占用请求信息中包括信道占用的时间信息、信道占用的起始点信息、信道占用的结束点信息和/或传输所述信道占用的确认信息所占用的时频资源信息。
  8. 根据权利要求7所述的使用非授权频谱提供服务的小区的数据传输方法，其特征在于，
    通过所述导频信息发送所述信道占用请求信息具体包括：
    通过导频的时频位置或所述导频使用的序列来指示所述信道占用请求信息中的信道占用的时间、信道占用的起始点、信道占用的结束点和/或传输所述信道占用的确认信息所占用的时频资源。
  9. 一种使用非授权频谱提供服务的小区的数据传输装置，用于终端，其特征在于，包括：
    处理单元，当服务基站通过非授权频谱的下行信道与所述终端进行数据交互时，若检测到其他服务基站需要通过所述非授权频谱的下行信道与 其他终端进行数据交互，则暂停与所述服务基站之间的数据交互，并发送信道已占用指令至所述其他服务基站或所述其他终端，以供所述其他服务基站根据所述信道已占用指令确定是否占用所述下行信道。
  10. 根据权利要求9所述的使用非授权频谱提供服务的小区的数据传输装置，其特征在于，还包括：
    恢复单元，在所述终端发送完所述信道已占用指令后，重新恢复与所述服务基站之间的数据交互。
  11. 根据权利要求9所述的使用非授权频谱提供服务的小区的数据传输装置，其特征在于，还包括：
    交互单元，在所述终端与所述服务基站进行数据交互前，接收所述服务基站在需要通过所述下行信道进行数据交互时发送的信道占用请求信息，并在接收到所述信道占用请求信息后，发送信道占用的确认信息至所述服务基站，其中，所述信道占用请求信息中包括信道占用的时间信息、信道占用的起始点信息、信道占用的结束点信息和/或传输所述信道占用的确认信息所占用的时频资源信息。
  12. 根据权利要求11所述的使用非授权频谱提供服务的小区的数据传输装置，其特征在于，所述交互单元具体用于：
    判断所述终端当前的工作机制；
    当所述当前的工作机制为辅助下行工作传输机制时，所述终端通过聚合的主服务小区所使用的载波发送所述信道占用的确认信息至所述服务基站；
    当所述当前的工作机制为时分双工传输机制时，所述终端通过所述信道占用请求信息的所述时频资源信息中的时频资源，或者通过预定义的时频资源发送所述信道占用的确认信息至所述服务基站。
  13. 根据权利要求9至12中任一项所述的使用非授权频谱提供服务的小区的数据传输装置，其特征在于，所述信道已占用指令中包括信道占用的时间信息、信道占用的起始点信息和/或信道占用的结束点信息。
  14. 一种使用非授权频谱提供服务的小区的数据传输装置，用于服务基站，其特征在于，包括：
    发送单元，当所述服务基站需要通过非授权频谱的下行信道与终端进行数据交互时，发送信道占用请求信息至所述终端；以及
    接收单元，接收所述终端发送的信道占用的确认信息，以及接收其他终端在通过所述非授权频谱的下行信道与其他服务基站进行数据交互时发送的信道已占用指令，根据所述信道占用的确认信息和所述信道已占用指令确定是否占用所述下行信道。
  15. 根据权利要求14所述的使用非授权频谱提供服务的小区的数据传输装置，其特征在于，
    所述发送单元具体用于：
    通过物理层下行控制信令或导频信息发送所述信道占用请求信息至所述终端，其中，所述信道占用请求信息中包括信道占用的时间信息、信道占用的起始点信息、信道占用的结束点信息和/或传输所述信道占用的确认信息所占用的时频资源信息。
  16. 根据权利要求15所述的使用非授权频谱提供服务的小区的数据传输装置，其特征在于，
    所述发送单元具体用于：
    通过导频的时频位置或所述导频使用的序列来指示所述信道占用请求信息中的信道占用的时间、信道占用的起始点、信道占用的结束点和/或传输所述信道占用的确认信息所占用的时频资源。
  17. 一种非授权频谱的服务小区中的数据传输系统，其特征在于，包括：
    权利要求9至13中任一项所述的用于终端的使用非授权频谱提供服务的小区的数据传输装置；
    权利要求14至16中任一项所述的用于服务基站的使用非授权频谱提供服务的小区的数据传输装置。
PCT/CN2015/080392 2015-01-30 2015-05-29 数据传输方法、数据传输装置和数据传输系统 Ceased WO2016119355A1 (zh)

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