WO2016055023A1 - 一种数据传输方法及装置 - Google Patents

一种数据传输方法及装置 Download PDF

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Publication number
WO2016055023A1
WO2016055023A1 PCT/CN2015/091586 CN2015091586W WO2016055023A1 WO 2016055023 A1 WO2016055023 A1 WO 2016055023A1 CN 2015091586 W CN2015091586 W CN 2015091586W WO 2016055023 A1 WO2016055023 A1 WO 2016055023A1
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WO
WIPO (PCT)
Prior art keywords
cell
cells
terminal
virtual
division multiplexing
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PCT/CN2015/091586
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English (en)
French (fr)
Inventor
许芳丽
鲍炜
王彦
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电信科学技术研究院
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Priority to US15/518,242 priority Critical patent/US10660113B2/en
Priority to EP15849297.5A priority patent/EP3206325B1/en
Publication of WO2016055023A1 publication Critical patent/WO2016055023A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1822Automatic repetition systems, e.g. Van Duuren systems involving configuration of automatic repeat request [ARQ] with parallel processes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • H04W36/0058Transmission of hand-off measurement information, e.g. measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • H04W36/30Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/302Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/30TPC using constraints in the total amount of available transmission power
    • H04W52/36TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/365Power headroom reporting
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/38TPC being performed in particular situations
    • H04W52/40TPC being performed in particular situations during macro-diversity or soft handoff
    • 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
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria
    • 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
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24Cell structures
    • H04W16/32Hierarchical cell structures
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/08Testing, supervising or monitoring using real traffic

Definitions

  • the present application relates to the field of communications, and in particular, to a data transmission method and apparatus.
  • LTE-A Advanced Long Term Evolution
  • LTE-A Long Term Evolution
  • CA Carrier Aggregation
  • the carrier aggregation technology is that the user equipment can work simultaneously on multiple cells, and one cell includes a pair of uplink (UL)/downlink (DL) component carriers (CC).
  • each component carrier may be continuous or non-contiguous, and the bandwidth between the component carriers may be the same or different.
  • the maximum bandwidth limit of each component carrier is 20 MHz.
  • the cell of the carrier aggregation of the LTE-A system is divided into a primary cell (PCell) and a secondary cell (SCell). Only one cell in a cell aggregated by a user equipment (UE) is defined as a PCell, and other cells except the PCell are referred to as SCells.
  • the LTE system begins to consider deploying transmissions on unlicensed spectrum resources.
  • the embodiment of the present application provides a data transmission method and device, which are used to implement data transmission in a time division multiplexing manner between multiple cells.
  • the terminal acquires configuration information of the virtual cell, where the virtual cell includes N cells, where N ⁇ 1;
  • the terminal performs data transmission by means of time division multiplexing between the N cells.
  • the method further comprises:
  • time division multiplexing configuration information indicates that the terminal is in the N a period of time occupied by the cell when the cell performs data transmission, where each time segment only indicates that the terminal performs data transmission on one of the N cells;
  • the terminal performs data transmission by means of time division multiplexing between the N cells, including:
  • the terminal performs data transmission by means of time division multiplexing between the N cells according to the time division multiplexing configuration information.
  • the terminal performs data transmission by means of time division multiplexing between the N cells, including:
  • the terminal switches from the currently working source cell to the target cell indicated by the cell handover indication information, where the source cell and the target cell are all the N cells.
  • the cell in the middle switches from the currently working source cell to the target cell indicated by the cell handover indication information, where the source cell and the target cell are all the N cells. The cell in the middle.
  • the method further comprises:
  • the terminal maintains a set of uplink and downlink timing relationship information on the virtual cell
  • the terminal performs time-division multiplexing between the N cells and performs data transmission according to the uplink and downlink timing relationship information.
  • the method further comprises:
  • the terminal receives data that is retransmitted by the network device according to the data receiving situation, where the retransmitted data is data-transferred by means of time division multiplexing between the N cells.
  • the method further includes:
  • the terminal detects a physical downlink control channel PDCCH in each of the N cells, and detects a physical downlink shared channel PDSCH in the local cell according to the detected PDCCH, where a PDCCH of each of the N cells is used for Scheduling resources transmitted on the cell; or
  • the terminal detects a PDCCH in a cell other than the virtual cell, detects a PDSCH in one or more cells of the N cells according to the detected PDCCH, and uses a PDCCH of a cell other than the virtual cell to schedule the virtual Resources transmitted on one or more cells in a cell.
  • the method further comprises:
  • the terminal performs power measurement on the virtual cell according to the power control parameter configured for the virtual cell, and performs power headroom reporting on the virtual cell according to the power measurement result;
  • the terminal performs power measurement on the N cells according to the power control parameters respectively configured for the N cells in the virtual cell, and performs power headroom reporting on the N cells according to the power measurement result.
  • the method further comprises:
  • the terminal simultaneously performs measurement on N cells included in the virtual cell; or
  • the terminal performs measurement by means of time division multiplexing between N cells included in the virtual cell, where only one of the N cells is measured in each time period.
  • the method further comprises:
  • the measurement result is obtained by the measurement, the measurement result is reported for each of the N cells.
  • the method further comprises:
  • the terminal stops performing data transmission by means of time division multiplexing between the N cells;
  • the terminal When the virtual cell configured for the terminal is activated or discontinuously received to enable DRX on, the terminal resumes data transmission by means of time division multiplexing between the N cells.
  • the number of the virtual cells is one or more;
  • the number of the virtual cells is multiple, one cell is allowed to be configured into multiple virtual cells, and the time division multiplexing configuration in the multiple virtual cells remains consistent.
  • the terminal acquires configuration information of the virtual cell, where the virtual cell includes N cells, including:
  • the terminal acquires carrier aggregation configuration information configured for the terminal, where the carrier aggregation configuration information includes primary cell configuration information and secondary cell configuration information, where the secondary cell configuration information includes at least one virtual cell configuration information,
  • the virtual cell includes N cells operating on an unlicensed frequency band.
  • the network device configures a virtual cell for the terminal, where the virtual cell includes N cells, N ⁇ 1;
  • the network device performs data transmission with the terminal by using a time division multiplexing manner among N cells included in the virtual cell.
  • the method further comprises:
  • the network device sends time division multiplexing configuration information to the terminal, where the time division multiplexing configuration information indicates a time period occupied by each cell when the terminal performs data transmission in the N cells, where each time The segment only indicates that the terminal performs data transmission on one of the N cells;
  • the network device performs data transmission with the terminal in a manner of time division multiplexing between the N cells included in the virtual cell, including:
  • the network device performs data transmission with the terminal by means of time division multiplexing between the N cells according to the time division multiplexing configuration information.
  • the network device performs data transmission with the terminal in a manner of time division multiplexing between the N cells included in the virtual cell, including:
  • the network device sends the cell handover indication information to the terminal, so that the terminal switches from the currently working source cell to the target cell indicated by the cell handover indication information according to the cell handover indication information, and performs data transmission,
  • the source cell and the target cell are both cells in the N cells.
  • the network device performs data transmission with the terminal in a manner of time division multiplexing between the N cells included in the virtual cell, including:
  • the network device performs data transmission with the terminal according to a set of uplink and downlink timing relationship information maintained by the network device on the virtual cell by means of time division multiplexing.
  • the method further comprises:
  • the network device retransmits data to the terminal according to the data receiving situation, where the retransmitted data is data-transferred by means of time division multiplexing between the N cells.
  • the method further comprises:
  • the network device receives a power headroom of each cell that is reported by the terminal according to a power control parameter of each cell in the virtual cell, and performs power control on each cell according to a power headroom of each cell.
  • the method further includes:
  • the virtual cell Sending, by the network device, the virtual cell to a deactivated or DRX off command to the terminal, to indicate that the terminal stops performing data transmission in a manner of time division multiplexing between the N cells;
  • the network device sends a virtual cell to the terminal to be activated again or a DRX on command to instruct the terminal to resume data transmission in a manner of time division multiplexing between the N cells.
  • the number of the virtual cells is one or more;
  • the number of the virtual cells is multiple, one cell is allowed to be configured into multiple virtual cells, and the time division multiplexing configuration in the multiple virtual cells remains consistent.
  • the network device configures configuration information of the virtual cell for the terminal, including:
  • the network device configures carrier aggregation configuration information for the terminal, where the carrier aggregation configuration information includes primary cell configuration information and secondary cell configuration information, where the secondary cell configuration information includes at least one virtual cell configuration information, where the virtual The cell includes N cells operating on unlicensed bands.
  • An acquiring module configured to acquire configuration information of a virtual cell, where the virtual cell includes N cells, where N ⁇ 1;
  • a transmission module configured to perform data transmission by means of time division multiplexing between the N cells.
  • the transmission module is further configured to:
  • the time division multiplexing configuration information indicating a time period occupied by each cell when the terminal performs data transmission in the N cells, where each time segment indicates that the terminal is only Data transmission is performed on one of the N cells;
  • the transmission module is further configured to:
  • the transmission module is further configured to:
  • the transmission module is further configured to:
  • the method further includes:
  • a detecting module configured to detect a PDCCH in each of the N cells, detect a PDSCH in the local cell according to the detected PDCCH, and use a PDCCH of each of the N cells to schedule transmission on the local cell. Resources; or
  • Detecting a PDCCH in a cell other than the virtual cell detecting a PDSCH in one or more of the N cells according to the detected PDCCH, and using a PDCCH of a cell other than the virtual cell to schedule the virtual cell Resources transmitted on one or more cells.
  • the method further includes:
  • a measuring module configured to perform power measurement on the virtual cell according to a power control parameter configured for the virtual cell, and perform power headroom reporting on the virtual cell according to the power measurement result;
  • the method further includes:
  • a measuring module configured to perform measurement simultaneously on N cells included in the virtual cell
  • the measurement is performed by means of time division multiplexing between N cells included in the virtual cell, wherein only one of the N cells is measured in each time period.
  • the transmission module is further configured to:
  • the measurement result is reported for each of the N cells.
  • the transmission module is further configured to:
  • the number of the virtual cells is one or more;
  • the number of the virtual cells is multiple, one cell is allowed to be configured into multiple virtual cells, and the time division multiplexing configuration in the multiple virtual cells remains consistent.
  • the obtaining module is further configured to:
  • carrier aggregation configuration information configured for the terminal, where the carrier aggregation configuration information includes primary cell configuration information and secondary cell configuration information, where the secondary cell configuration information includes at least one virtual cell configuration information, where the virtual cell includes N cells operating on unlicensed bands.
  • a configuration module configured to configure a virtual cell for the terminal, where the virtual cell includes N cells, N ⁇ 1;
  • a transmitting module configured to perform data transmission with the terminal by using a time division multiplexing manner among N cells included in the virtual cell.
  • the transmission module is further configured to:
  • time division multiplexing configuration information indicates a time period occupied by each cell when the terminal performs data transmission in the N cells, where only each time segment indicates The terminal performs data transmission on one of the N cells;
  • the transmission module is further configured to:
  • the transmission module is further configured to:
  • the transmission module is further configured to:
  • the transmission module is further configured to:
  • the transmission module is further configured to:
  • a virtual cell is activated again or a DRX on command, to instruct the terminal to resume data transmission by means of time division multiplexing between the N cells.
  • the number of the virtual cells is one or more;
  • the number of the virtual cells is multiple, one cell is allowed to be configured into multiple virtual cells, and the time division multiplexing configuration in the multiple virtual cells remains consistent.
  • the configuration module is further configured to:
  • the carrier aggregation configuration information includes primary cell configuration information and secondary cell configuration information, where the secondary cell configuration information includes at least one virtual cell configuration information, where the virtual cell includes N A cell operating on an unlicensed band.
  • Another terminal provided by the embodiment of the present application includes: a transceiver, and at least one processor connected to the transceiver, where:
  • a processor for reading a program in the memory performing the following process:
  • the transceiver is further configured to:
  • the time division multiplexing configuration information indicating a time period occupied by each cell when the terminal performs data transmission in the N cells, where each time segment indicates that the terminal is only Data transmission is performed on one of the N cells.
  • the transceiver is further configured to: receive cell handover indication information sent by the network device;
  • the processor is further configured to: according to the cell handover indication information, switch from a currently working source cell to a target cell indicated by the cell handover indication information, where the source cell and the target cell are both a cell in the N cells.
  • the processor is further configured to:
  • the processor is further configured to: control the transceiver to feed back, by the network device, data reception status in the N cells;
  • the transceiver is further configured to: receive data retransmitted by the network device according to the data receiving situation, where the retransmitted data is data-transferred by means of time division multiplexing between the N cells.
  • the processor is further configured to:
  • Detecting a PDCCH in each of the N cells detecting a PDSCH in the local cell according to the detected PDCCH, where a PDCCH of each of the N cells is used to schedule resources transmitted on the local cell; or
  • Detecting a PDCCH in a cell other than the virtual cell detecting a PDSCH in one or more of the N cells according to the detected PDCCH, and using a PDCCH of a cell other than the virtual cell to schedule the virtual cell Resources transmitted on one or more cells.
  • the processor is further configured to:
  • the processor is further configured to:
  • the measurement is performed by means of time division multiplexing between N cells included in the virtual cell, wherein only one of the N cells is measured in each time period.
  • the processor is further configured to:
  • the transceiver is controlled to report the measurement result for each of the N cells.
  • the processor is further configured to:
  • the transceiver When the virtual cell configured for the terminal is deactivated or DRX off, the transceiver is controlled to stop data transmission by means of time division multiplexing between the N cells;
  • the transceiver When the virtual cell configured for the terminal is activated or DRX on again, the transceiver is controlled to resume data transmission by means of time division multiplexing between the N cells.
  • the number of the virtual cells is one or more;
  • the number of the virtual cells is multiple, one cell is allowed to be configured into multiple virtual cells, and the time division multiplexing configuration in the multiple virtual cells remains consistent.
  • the processor is further configured to:
  • carrier aggregation configuration information configured for the terminal, where the carrier aggregation configuration information includes primary cell configuration information and secondary cell configuration information, where the secondary cell configuration information includes at least one virtual cell configuration information, where the virtual cell includes N cells operating on unlicensed bands.
  • Another network device includes: a transceiver, and at least one processor connected to the transceiver, where:
  • the processor is configured to read a program in the memory and perform the following process:
  • Configuring a virtual cell for the terminal where the virtual cell includes N cells, N ⁇ 1; controlling the transceiver to be in the The N cells included in the virtual cell perform data transmission with the terminal by means of time division multiplexing.
  • the processor is further configured to:
  • time division multiplexing configuration information indicates a time period occupied by each cell when the terminal performs data transmission in the N cells, where each The time period only indicates that the terminal performs data transmission on one of the N cells.
  • the processor is further configured to:
  • the source cell and the target cell are both cells in the N cells.
  • the processor is further configured to:
  • the transceiver is further configured to: receive data reception status in the N cells fed back by the terminal;
  • the processor is further configured to: control, according to the data receiving situation, the transceiver to retransmit data to the terminal, where the retransmitted data is data-time multiplexed between the N cells transmission.
  • the transceiver is further configured to: receive a power headroom reported by the terminal according to a power control parameter of the virtual cell; the processor is further configured to: the virtual cell according to the power headroom Power control in each of the cells;
  • the transceiver is further configured to: receive a power headroom of each cell that is reported by the terminal according to a power control parameter of each cell in the virtual cell; the processor is further configured to: according to power of each cell The remaining amount is power control for each cell separately.
  • the transceiver is further configured to:
  • the measurement result is that the terminal performs measurement at the same time on the N cells included in the virtual cell; or
  • the measurement result is that the terminal performs measurement by means of time division multiplexing between N cells included in the virtual cell.
  • the processor is further configured to:
  • the transceiver is controlled to send a virtual cell to the terminal to be activated again or a DRX on command to instruct the terminal to resume data transmission in a manner of time division multiplexing between the N cells.
  • the number of the virtual cells is one or more;
  • the number of the virtual cells is multiple, one cell is allowed to be configured into multiple virtual cells, and the time division multiplexing configuration in the multiple virtual cells remains consistent.
  • the processor is further configured to:
  • the carrier aggregation configuration information includes primary cell configuration information and secondary cell configuration information, where the secondary cell configuration information includes at least one virtual cell configuration information, where the virtual cell includes N A cell operating on an unlicensed band.
  • the terminal service transmission carrier can be flexibly adjusted.
  • a plurality of cells operating in an unlicensed frequency band are aggregated into one virtual cell, and data transmission is performed by using time division multiplexing between the multiple cells. Reduce interference in different frequency domains, thereby improving system transmission efficiency.
  • FIG. 1 is a schematic structural diagram of a system applicable to an embodiment of the present application.
  • LTE-U is a Frequency Division Duplexing (FDD) type
  • LTE-U is a Time Division Duplexing (TDD) type
  • FIG. 4 is a schematic diagram of a data transmission process on a network side according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of data transmission on a virtual cell according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a data transmission process on a terminal side according to an embodiment of the present disclosure
  • FIG. 7 is a schematic diagram of a terminal according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a network device according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of another terminal according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of another network device according to an embodiment of the present application.
  • FIG. 1 a schematic diagram of a system architecture to which the embodiment of the present application is applied.
  • the system architecture includes network devices to And at least one terminal; wherein the network device may be a base station, and the terminal is a mobile device having a wireless communication function, such as a mobile phone.
  • the network device may configure a virtual cell for the terminal, where the virtual cell includes N (N ⁇ 1) cells.
  • N N ⁇ 1 cells.
  • FIG. 2 it is a model diagram of a virtual cell as a secondary cell, where LTE-U is of an FDD type.
  • FIG. 3 it is another schematic diagram of a virtual cell as a secondary cell, where LTE-U is a TDD type.
  • the network device and the terminal can perform data transmission by means of time division multiplexing between N cells included in the virtual cell.
  • the embodiment of the present application provides a data transmission method based on the network side and the terminal side, respectively.
  • the data transmission method on the network side and the data transmission method on the terminal side may be used independently or in combination.
  • the data transmission methods on the network side and the terminal side are described below.
  • FIG. 4 is a schematic diagram of a data transmission process according to an embodiment of the present disclosure, where the flow shows the processing flow on the network side, including the following steps 401 to 402:
  • Step 401 the network device configures a virtual cell for the terminal, where the virtual cell includes N cells, N ⁇ 1;
  • Step 402 The network device performs data transmission with the terminal by using a time division multiplexing manner among N cells included in the virtual cell.
  • the number of the virtual cells is one or more, and the plurality of virtual cells herein refers to two or more.
  • the number of virtual cells is multiple, one cell is allowed to be configured into multiple virtual cells, and the time division multiplexing configuration in the multiple virtual cells remains consistent.
  • the virtual cell configured by the network device for the terminal includes the virtual cell 1 and the virtual cell 2, and an actual cell LTE-U 1 may belong to the virtual cell 1 or belong to the virtual cell 2, in this case, the LTE-U 1 is virtual.
  • the transmission time period allocated in the cell 1 and the transmission time period allocated in the virtual cell 2 are the same.
  • the LTE-U cell refers to a cell operating on an unlicensed frequency band.
  • the network device may dynamically change the set of cells included in the virtual cell according to the measurement of the cell or the change of the interference situation, such as deleting a cell from the virtual cell or adding a cell in the virtual cell.
  • the network device may send configuration information of the virtual cell to the terminal by using Radio Resource Control (RRC) signaling.
  • RRC Radio Resource Control
  • the virtual cell in the above process refers to a set of N cells.
  • the multiple cells working in the licensed frequency band of the LTE system may be aggregated into one virtual cell, or part of the working frequency band and part of the LTE system may work.
  • the cells in the unlicensed frequency band of the LTE system are aggregated into one virtual cell, or multiple cells working in the unlicensed frequency band of the LTE system are aggregated into one virtual cell.
  • the network device may use the carrier aggregation technology to configure carrier aggregation configuration information for the terminal, and send the carrier aggregation configuration information to the terminal.
  • the carrier aggregation configuration information includes primary cell configuration information, such as a frequency point where the primary cell is located, and secondary cell configuration information.
  • the configuration information of one or more virtual cells may be included in the secondary cell configuration information.
  • a virtual cell may include N cells, and configuration information of the virtual cell may include the N cells. Frequency point.
  • the frequency of the N cells may be in an unlicensed frequency band of the LTE system, that is, the N cells may be cells operating on an unlicensed frequency band of the LTE system.
  • unlicensed spectrum resources can be shared by multiple systems, such as WIreless-Fidelity (Wi-Fi) and other networks and LTE networks
  • the interference of LTE systems on unlicensed spectrum resources is unstable.
  • the N cells working in the unlicensed frequency band of the LTE system are aggregated into a virtual cell, and the data transmission is performed by using the time division multiplexing mode between the N cells, so that the UE service transmission carrier can be flexibly adjusted to avoid
  • the interference in different frequency domains does not affect the service transmission of the UE, thereby fully utilizing the unlicensed spectrum resources and improving the transmission performance of the LTE system on the unlicensed spectrum resources.
  • the network device In order to enable the network device and the terminal to perform data transmission in a manner of time division multiplexing between the N cells included in the virtual cell, the network device needs to notify the terminal of the configuration of the time division multiplexing.
  • the embodiment of the present application provides the following Two ways (method 1 and mode 2).
  • the network device sends time division multiplexing configuration information to the terminal, where the time division multiplexing configuration information indicates a time period occupied by each cell when the terminal performs data transmission in the N cells, where each time The segment only indicates that the terminal performs data transmission on one of the N cells, so that the network device and the terminal perform time division multiplexing transmission between the N cells.
  • the time division multiplexing configuration information may be determined by the network device or obtained through negotiation between the network devices. For example, in a scenario where a plurality of LTE-U cells are aggregated into one virtual cell to serve the terminal, the LTE-U base station can communicate with a neighboring LTE-U base station or a wireless local network access point (Wireless Local Area Networks Access). Point, WLAN AP) negotiates to obtain the interference situation of each cell, and then determines the time division multiplexing configuration information for data transmission on these cells. For example, in a scenario where a legacy cell and an LTE-U cell cooperate to serve a terminal, the base station of one of the cells determines the time division multiplexing configuration information of the virtual cell, and the base station can repeat the time division. The configuration information is notified to the terminal through dedicated signaling.
  • WLAN AP wireless Local Area Networks Access
  • the time division multiplexing configuration information may be represented by a TDM pattern (time division multiplexing pattern), the TDM pattern being a bitmap of length N bits, each bit corresponding to one of the N cells or a cell frequency point .
  • TDM pattern time division multiplexing pattern
  • the terminal may perform handover between the N cells according to the TDM pattern, so that data transmission is performed with the network device by using a time division multiplexing manner among the N cells.
  • FIG. 5 is a schematic diagram of data transmission on a virtual cell according to an embodiment of the present disclosure. Specifically, a terminal performs data transmission with a network device by using a time division multiplexing manner between the N cells.
  • the time division multiplexing configuration information may be sent by the network device to the terminal by using dedicated signaling, where the TDM pattern may be carried in the dedicated signaling.
  • the dedicated signaling may be L1 signaling (ie, data link level signaling), L2 signaling (ie, link functional level signaling), or L3 signaling (ie, network functional level signaling).
  • the dedicated signaling can be RRC signaling.
  • the time division multiplexing configuration information can be applied to one or more scheduling periods.
  • the network device can send the complete time division multiplexing configuration information to the terminal, and the network device and the terminal use the time division multiplexing manner between the N cells based on the complete time division multiplexing configuration information.
  • the terminal performs data transmission.
  • the network device sends the cell handover indication information to the terminal, so that the terminal switches from the currently working source cell to the target cell indicated by the cell handover indication information for data transmission according to the cell handover indication information.
  • the source cell and the target cell are both cells in the N cells.
  • the network device determines the switching timing of data transmission between the N cells, that is, the time division multiplexing configuration information is not completely obtained in advance, but the network device dynamically determines according to the data transmission situation. from.
  • the LTE-U base station may determine a handover timing of data transmission between the N cells according to each cell interference condition, and notify the terminal to switch to the target cell for data transmission by using control signaling.
  • the control signaling may be L1 signaling or L2 signaling.
  • the interference situation of each cell may be obtained based on the terminal measurement report, or may be obtained based on the network device's own measurement.
  • the network device may notify the terminal to perform cell handover in advance time t, and further notify the terminal of the handover time, taking into account factors such as handover timing and frequency switching time and service interruption time.
  • t represents the length of time from the cell handover, so that the network device and the terminal can switch to the target cell for data transmission at the same time.
  • the network device can flexibly select a cell with small interference to provide service transmission for the terminal according to the data transmission situation.
  • the mechanism for measuring configuration and terminal measurement reporting is improved accordingly.
  • the measurement configuration may be performed for the virtual cell, that is, the measurement configuration is performed according to the virtual cell.
  • the measurement parameters configured for the virtual cell are applicable to each cell in the virtual cell.
  • the network device may also perform measurement configuration for each cell in the virtual cell, that is, perform measurement configuration according to each cell in the virtual cell.
  • the measurement configuration parameters configured for each cell in the virtual cell may be the same or different.
  • the terminal performs measurement and reporting according to the measurement configuration.
  • the network device may further configure a measurement pattern (measurement pattern) for the terminal, where the measurement pattern indicates a time period occupied by performing measurement on each cell in the virtual cell.
  • the measurement pattern and the time division multiplexing pattern may be the same or different. If they are the same, the terminal may perform measurement in the current service receiving cell.
  • the measurement pattern may indicate that the terminal performs measurement on multiple cells in the virtual cell at the same time, and even indicates that the terminal performs measurement on all cells in the virtual cell at the same time, which may be applicable to a scenario in which the terminal has a sufficiently large working bandwidth.
  • the measurement pattern may also indicate that the terminal uses the time division multiplexing method to measure between multiple cells included in the virtual cell, and the measurement time periods on each cell do not coincide with each other, that is, only one cell can be measured at a time. It can be applied to scenarios where the terminal can only work on one cell.
  • the measurement pattern can also be pre-defined.
  • a Hybrid Automatic Repeat Request (HARQ) process is allowed to be performed across cells. Specifically, after receiving, by the network device, the data receiving situation in the N cells included in the virtual cell, the network device may retransmit data to the terminal according to the data receiving situation, where the retransmitting Data is transmitted in a manner of time division multiplexing between the N cells.
  • HARQ Hybrid Automatic Repeat Request
  • the network device After the network device receives the unacknowledgment (NACK) feedback information of the LTE-U1 cell in the virtual cell, the network device is currently performing downlink data transmission on the terminal in the LTE-U2 cell in the virtual cell.
  • the unacknowledged received data in the LTE-U1 cell is retransmitted to the terminal through the LTE-U2 cell. If the first retransmission still fails, multiple retransmissions can be made.
  • the multiple retransmission process of the unacknowledged received data may occur in different cells, that is, the retransmitted data is performed by time division multiplexing between the N cells. data transmission.
  • the Physical Downlink Control Channel is allowed to perform a Physical Downlink Shared Channel (PDSCH) with a carrier or a cross-carrier.
  • PDSCH Physical Downlink Shared Channel
  • the network device sends a PDCCH on all or a part of the cells in the virtual cell, where the PDCCH is used to schedule resources transmitted on the local cell, and the PDCCH indicates the location of the PDSCH on the local cell.
  • the network device may further send a PDCCH on a cell other than the cell included in the virtual cell, where the PDCCH is used to schedule resources transmitted on one or more cells in the virtual cell, where the PDCCH indicates one cell or multiple cells in the virtual cell The transmission location of the PDSCH on the cell.
  • the network device and the terminal maintain a set of uplink and downlink timing relationship information for the virtual cell, where the uplink and downlink timing relationship information is used to indicate the configuration of the uplink and downlink subframes, and the uplink and downlink timing relationship information is applicable.
  • the network device performs data transmission with the terminal in a manner of time division multiplexing between the N cells and according to a set of uplink and downlink timing relationship information maintained on the virtual cell.
  • the network device may perform power control based on the virtual cell, or may perform power control based on each cell in the virtual cell.
  • the terminal may perform power headroom reporting based on the virtual cell, and correspondingly, the network device receives a power headroom reported by the terminal according to the power control parameter of the virtual cell, and according to the power The margin is power controlled for each cell in the virtual cell. If the network device performs power control based on each cell in the virtual cell, the terminal may perform power headroom reporting based on each cell in the virtual cell, and accordingly, the network device receives the terminal according to each of the virtual cells. Each of the power control parameters reported by the cell The power headroom of the cell and power control for each cell according to the power headroom of each cell.
  • the network device may also activate or deactivate the virtual cell, or perform discontinuous reception-on (DRX-on) or discontinuous reception to stop DRX-off control.
  • DRX-on discontinuous reception-on
  • DRX-off discontinuous reception-off
  • the network device may send an instruction that the virtual cell is deactivated or DRX off to the terminal, to instruct the terminal to stop data transmission by using time division multiplexing between the N cells of the virtual cell.
  • the network device may further send, to the terminal, a virtual cell to be activated again or a DRX on command, to instruct the terminal to resume data transmission in a manner of time division multiplexing between N cells of the virtual cell.
  • the time division multiplexing configuration information (such as a TDM pattern) used by the terminal to perform data transmission by means of time division multiplexing between the N cells of the virtual cell may be used before the virtual cell is deactivated or DRX off.
  • the time division multiplexing configuration information is the same, and the separately configured time division multiplexing configuration information can also be used.
  • the measurement pattern used by the terminal to perform cell measurement for the virtual cell may be separately configured by the network device for the terminal, so that the virtual cell is activated and deactivated.
  • the measurement pattern used in the case may be different, or the measurement pattern used in the case of DRX on and DRX off may be different.
  • it is also possible to continue to use the original measurement pattern that is, the measurement pattern used in the case of virtual cell activation or DRX on.
  • An embodiment of the present application configures a virtual cell for a terminal by using a network device, where the virtual cell includes N cells, N ⁇ 1; and the network device performs data transmission with the terminal by means of time division multiplexing between the N cells.
  • the embodiment of the present application implements flexible adjustment of the UE service transmission carrier, avoids interference in different frequency domains, and does not affect the UE service transmission, so as to improve system transmission efficiency.
  • FIG. 6 is a schematic diagram of a data transmission process according to an embodiment of the present disclosure.
  • the process shows a process flow on the terminal side, including the following steps 601 to 602:
  • Step 601 the terminal acquires configuration information of the virtual cell, where the virtual cell includes N cells, N ⁇ 1;
  • Step 602 The terminal performs data transmission by means of time division multiplexing between the N cells.
  • the terminal In order to enable the network device and the terminal to perform data transmission in a manner of time division multiplexing between the N cells included in the virtual cell, the terminal needs to obtain configuration information of time division multiplexing. To this end, the embodiment of the present application provides two methods. (Method 1 and Mode 2).
  • the static acquisition mode corresponds to the static notification mode of the network device described above.
  • the terminal receives time division multiplexing configuration information, where the time division multiplexing configuration information indicates a time period occupied by each cell when the terminal performs data transmission in the N cells, where only each time period is used. Instructing the terminal to perform data transmission on one of the N cells, so that the network device and the terminal perform time division multiplexing transmission between the N cells.
  • the dynamic notification mode corresponds to the dynamic notification mode of the network device described above.
  • the terminal receives the cell handover indication information sent by the network device, and performs data transmission from the currently working source cell to the target cell indicated by the cell handover indication information according to the cell handover indication information, where the source transmits.
  • the cell and the target cell are both cells in the N cells.
  • the terminal maintains a set of uplink and downlink timing relationship information on the virtual cell, where the uplink and downlink timing relationship information is used to indicate the configuration of the uplink and downlink subframes, and the uplink and downlink timing relationship information is applicable to each of the virtual cells. a cell.
  • the terminal after acquiring the configuration information of the time division multiplexing, the terminal performs time-division multiplexing between the N cells and performs data transmission with the network device according to the uplink and downlink timing relationship information.
  • the HARQ process is allowed to be performed across cells. Specifically, after the terminal feeds back, to the network device, the data receiving situation in the N cells included in the virtual cell, the receiving device retransmits the data according to the data receiving situation, where the retransmitted data is Data transmission is performed by means of time division multiplexing between the N cells.
  • the network device transmitting the retransmission data to the terminal reference may be made to the foregoing embodiment, and details are not described herein again.
  • the PDCCH is allowed to be scheduled on the same carrier or cross-carrier.
  • the terminal detects a PDCCH in each of the N cells, and detects a PDSCH in the local cell according to the detected PDCCH, where a PDCCH of each of the N cells is used to schedule transmission on the local cell.
  • the PDCCH is detected by the terminal in a cell other than the virtual cell, and the PDSCH is detected in one or more of the N cells according to the detected PDCCH, and the PDCCH of the cell other than the virtual cell is used for scheduling.
  • the cell other than the virtual cell may refer to a primary cell or a non-virtual cell in which carrier aggregation is performed.
  • the terminal may perform power measurement based on the virtual cell, or may perform power control based on each cell in the virtual cell.
  • the terminal may perform power measurement on the virtual cell according to the power control parameter configured for the virtual cell, and perform power headroom reporting on the virtual cell according to the power measurement result; or the terminal may be based on the virtual cell
  • the power control parameters respectively configured by the N cells are respectively measured for power of the N cells, and the power headroom is reported to the N cells according to the power measurement result.
  • the terminal acquires a measurement pattern configured by the network device for the terminal, and the measurement pattern indicates a time period occupied by performing measurement on each cell in the virtual cell.
  • the measurement pattern and the time division multiplexing pattern may be the same or different. If they are the same, the terminal may perform measurement in the current service receiving cell.
  • the measurement pattern may indicate that the terminal performs measurement on multiple cells in the virtual cell at the same time, and even indicates that the terminal performs measurement on all cells in the virtual cell at the same time, which may be applicable to a scenario in which the terminal has a sufficiently large working bandwidth.
  • the measurement pattern may also indicate that the terminal uses the time division multiplexing method to measure between multiple cells included in the virtual cell, and the measurement time periods on each cell do not coincide with each other, that is, only one cell can be measured at a time. It can be applied to scenarios where the terminal can only work on one cell.
  • the measurement pattern can also be pre-defined.
  • the measurement result is reported for each of the N cells.
  • the terminal when the virtual cell configured for the terminal is deactivated or DRX off, the terminal stops performing data transmission by means of time division multiplexing between the N cells; when configuring the terminal When the virtual cell is activated again or DRX on, the terminal resumes data transmission by means of time division multiplexing between the N cells.
  • the time division multiplexing configuration information (such as a TDM pattern) used by the terminal to perform data transmission by means of time division multiplexing between the N cells of the virtual cell may be used before the virtual cell is deactivated or DRX off.
  • the time division multiplexing configuration information is the same, and the separately configured time division multiplexing configuration information can also be used.
  • the measurement pattern used by the terminal to perform cell measurement for the virtual cell may be separately configured by the network device for the terminal, so that the virtual cell is activated and deactivated.
  • the measurement pattern used in the case may be different, or the measurement pattern used in the case of DRX on and DRX off may be different.
  • it is also possible to continue to use the original measurement pattern that is, the measurement pattern used in the case of virtual cell activation or DRX on.
  • the configuration information of the virtual cell is obtained by the terminal, where the virtual cell includes N cells, and N ⁇ 1; the terminal performs data transmission by means of time division multiplexing between the N cells; It realizes flexible adjustment of UE service transmission carrier, avoids interference in different frequency domains, and does not affect UE service transmission, so as to improve system transmission efficiency.
  • Embodiment 1 of the present application a case where a FDD carrier constructs a virtual cell
  • the network device configures carrier aggregation configuration information for the terminal, which is configuration information of one primary cell and configuration information of one virtual cell, where the primary cell is an FDD cell, and the virtual cell includes three FDD cells operating in an unlicensed frequency band.
  • carrier aggregation configuration information for the terminal which is configuration information of one primary cell and configuration information of one virtual cell, where the primary cell is an FDD cell, and the virtual cell includes three FDD cells operating in an unlicensed frequency band.
  • LTE-U Cell-1, LTE-U Cell-2, and LTE-U Cell-3 are named LTE-U Cell-1, LTE-U Cell-2, and LTE-U Cell-3, respectively.
  • the terminal maintains one HARQ entity for the primary cell and the secondary cell, and the uplink works on the primary cell, and the downlink works on the primary cell and the virtual cell; on the virtual cell, the terminal can only pass the LTE-U Cell-1, LTE- at the same time.
  • One cell in U Cell-2 and LTE-U Cell-3 performs downlink service reception processing.
  • the network device can simultaneously configure the working mode on the virtual cell for the terminal by using the RRC signaling of the RRC, and instantaneously multiplex the configuration information, that is, which one of the three LTE-U cells performs the service receiving processing, for example, the sub- Frames 0, 1, and 2 receive downlink data in LTE-U Cell-1, and subframes 3, 4, and 5 receive downlink data in LTE-U Cell-2, and subframes 6, 7, and 8 are on LTE-U Cell-3. Receiving downlink data, subframe 9 does not need to receive downlink data.
  • the time division multiplexing configuration information may be configured by the network device through RRC signaling, or the network device may send the cell handover indication information to the terminal according to the interference situation of different LTE-U cells, to indicate that the terminal is working from the current Source
  • the cell switches to the target cell indicated by the cell handover indication information for data transmission, where the source cell and the target cell are both cells in the N cells.
  • the terminal receives the downlink data on each LTE-U Cell according to the time division multiplexing configuration information configured by the network device, and the scheduling signaling of the downlink data may be from the same LTE-U Cell or PCell;
  • the terminal performs data transmission according to the uplink and downlink timing relationship information configured for the virtual cell by means of time division multiplexing between the three LTE-U cells and according to the uplink and downlink timing relationship information.
  • the terminal feeds back to the network device a data of one of the three LTE-U cells, for example, LTE-U Cell-1, and the network device retransmits the data to the terminal according to the data receiving situation, and the retransmitted data can be in the LTE-U. It is sent on Cell-1 and can also be sent on LTE-U Cell-2 or LTE-U Cell-3.
  • the UE detects a PDCCH in each of the three LTE-U cells, detects a PDSCH in the local cell according to the detected PDCCH, and uses a PDCCH of each of the three LTE-U cells to schedule transmission on the local cell.
  • the PDCCH is detected by the terminal in a cell other than the virtual cell, and the PDSCH is detected in one or more of the three LTE-U cells according to the detected PDCCH, and the PDCCH of the cell other than the virtual cell is used for scheduling. Resources transmitted on one or more cells in the virtual cell.
  • the terminal performs power measurement on the virtual cell according to the power control parameter configured for the virtual cell, and performs power headroom reporting on the virtual cell according to the power measurement result; or the terminal is separately configured according to the three LTE-U cells in the virtual cell.
  • the power control parameters are respectively measured for power of the three LTE-U cells, and the power headroom is reported to the three LTE-U cells according to the power measurement result.
  • the terminal can perform measurement simultaneously on the three LTE-U cells included in the virtual cell; if the terminal can only work on one LTE-U Cell, that is, each time period can only be When an LTE-U Cell performs measurement, the terminal performs measurement by means of time division multiplexing between three LTE-U cells included in the virtual cell. After the measurement result is obtained by the measurement, the measurement result is reported for each LTE-U Cell in the virtual cell.
  • the network device can dynamically change the configuration information of the virtual cell by using RRC signaling according to the measurement result or the interference condition on different LTE-U cells, for example, deleting LTE-U Cell-1, adding LTE-U Cell-4, and the like.
  • the terminal stops data transmission by means of time division multiplexing between the three LTE-U cells; when deactivated, the measurement configuration of the terminal can be redisplayed through the network side. Configuration.
  • the terminal When the virtual cell configured for the terminal is activated again or DRX on, the terminal resumes data transmission by means of time division multiplexing between the three LTE-U cells.
  • Embodiment 2 of the present application a case where a TDD carrier constructs a virtual cell
  • the network device configures carrier aggregation configuration information for the terminal, which is configuration information of one primary cell and configuration information of one virtual cell, where the primary cell is a TDD cell or an FDD cell, and the virtual cell includes three TDD cells, which are respectively named LTE-U Cell-1, LTE-U Cell-2, and LTE-U Cell-3 operate on unlicensed bands.
  • the network device may configure the virtual cell to perform downlink transmission only, or configure the virtual cell to perform uplink and downlink. transmission.
  • the data transmission situation is as follows:
  • the terminal maintains one HARQ entity for the primary cell and the secondary cell, and the uplink works on the primary cell, and the downlink works on the primary cell and the virtual cell; on the virtual cell, the terminal can only pass the LTE-U Cell-1, LTE- at the same time.
  • One cell in U Cell-2 and LTE-U Cell-3 performs downlink service reception processing.
  • the network device can simultaneously configure the working mode on the virtual cell for the terminal through the RRC signaling, and instantaneously multiplex the configuration information, that is, which one of the three LTE-U cells performs the service receiving processing, for example, the subframe 0, 1 2, receiving downlink data in LTE-U Cell-1, subframes 3, 4, and 5 receiving downlink data in LTE-U Cell-2, and subframes 6, 7, and 8 receiving downlink data on LTE-U Cell-3, Subframe 9 does not need to receive downlink data.
  • the time division multiplexing configuration information may be configured by the network device through RRC signaling, or the network device may send the cell handover indication information to the terminal according to the interference situation of different LTE-U cells, to indicate that the terminal is working from the current
  • the source cell switches to the target cell indicated by the cell handover indication information for data transmission, where the source cell and the target cell are both cells in the N cells.
  • the terminal receives the downlink data on each LTE-U Cell according to the time division multiplexing configuration information configured by the network device, and the scheduling signaling of the downlink data may be from the same LTE-U Cell or PCell;
  • the terminal performs data transmission according to the uplink and downlink timing relationship information configured for the virtual cell by means of time division multiplexing between the three LTE-U cells and according to the uplink and downlink timing relationship information.
  • the terminal feeds back to the network device a data of one of the three LTE-U cells, for example, LTE-U Cell-1, and the network device retransmits the data to the terminal according to the data receiving situation, and the retransmitted data can be in the LTE-U. It is sent on Cell-1 and can also be sent on LTE-U Cell-2 or LTE-U Cell-3.
  • the UE detects a PDCCH in each of the three LTE-U cells, detects a PDSCH in the local cell according to the detected PDCCH, and uses a PDCCH of each of the three LTE-U cells to schedule transmission on the local cell. Resources; or
  • the terminal detects a PDCCH in a cell other than the virtual cell, detects a PDSCH in one or more of the three LTE-U cells according to the detected PDCCH, and uses a PDCCH of a cell other than the virtual cell to schedule the virtual cell. Resources transmitted on one or more cells in the medium.
  • the terminal performs power measurement on the virtual cell according to the power control parameter configured for the virtual cell, and performs power headroom reporting on the virtual cell according to the power measurement result;
  • the terminal performs power measurement on the three LTE-U cells according to the power control parameters respectively configured for the three LTE-U cells in the virtual cell, and performs power headroom reporting on the three LTE-U cells according to the power measurement result. .
  • the terminal can perform measurement simultaneously on the three LTE-U cells included in the virtual cell; if the terminal can only work on one LTE-U Cell, that is, each time period can only be When an LTE-U Cell performs measurement, the terminal performs measurement by means of time division multiplexing between three LTE-U cells included in the virtual cell. After the measurement result is obtained by the measurement, the measurement result is reported for each LTE-U Cell in the virtual cell.
  • the network device can dynamically change the configuration information of the virtual cell by using RRC signaling according to the measurement result or the interference condition on different LTE-U cells, for example, deleting LTE-U Cell-1, adding LTE-U Cell-4, and the like.
  • the terminal stops data transmission by means of time division multiplexing between the three LTE-U cells; when deactivated, the measurement configuration of the terminal can be redisplayed through the network side. Configuration.
  • the terminal When the virtual cell configured for the terminal is activated again or DRX on, the terminal resumes data transmission by means of time division multiplexing between the three LTE-U cells.
  • the terminal maintains one HARQ entity for the primary cell and the secondary cell, and the uplink and downlink work on the primary cell and/or the virtual cell; on the virtual cell, the terminal can only pass the LTE-U Cell-1, LTE-U Cell-2 at the same time.
  • One cell in LTE-U Cell-3 performs data transmission.
  • the network device can simultaneously configure the working mode on the virtual cell for the terminal through RRC signaling, and instantaneously multiplex the configuration information, that is, which of the three LTE-U cells the terminal transmits data, for example, subframe 0, 1.
  • 2 Data transmission is performed in LTE-U Cell-1, data transmission is performed on subframes 3, 4, and 5 in LTE-U Cell-2, and data transmission is performed on subframes 6, 7, and 8 in LTE-U Cell-3, subframe 9 does not require data transmission.
  • the time division multiplexing configuration information may be configured by the network device through RRC signaling, or the network device may send the cell handover indication information to the terminal according to the interference situation of different LTE-U cells, to indicate that the terminal is working from the current
  • the source cell switches to the target cell indicated by the cell handover indication information for data transmission, where the source cell and the target cell are both cells in the N cells.
  • the terminal maintains only one timing relationship information on the virtual cell, that is, the uplink and downlink timing relationship information on the LTE-U Cell-1 is also applicable to the LTE-U Cell-2, 3.
  • the terminal performs data transmission according to the uplink and downlink timing relationship information of the virtual cell by means of time division multiplexing between the three LTE-U cells and according to the uplink and downlink timing relationship information.
  • the terminal feeds back to the network device a data of one of the three LTE-U cells, for example, LTE-U Cell-1, and the network device retransmits the data to the terminal according to the data receiving situation, and the retransmitted data can be in the LTE-U. It is sent on Cell-1 and can also be sent on LTE-U Cell-2 or LTE-U Cell-3.
  • the UE detects a PDCCH in each of the three LTE-U cells, detects a PDSCH in the local cell according to the detected PDCCH, and uses a PDCCH of each of the three LTE-U cells to schedule transmission on the local cell. Resources; or
  • the terminal detects a PDCCH in a cell other than the virtual cell, detects a PDSCH in one or more of the three LTE-U cells according to the detected PDCCH, and uses a PDCCH of a cell other than the virtual cell to schedule the virtual cell. Resources transmitted on one or more cells in the medium.
  • the terminal performs power measurement on the virtual cell according to the power control parameter configured for the virtual cell, and performs power headroom reporting on the virtual cell according to the power measurement result;
  • the terminal performs power measurement on the three LTE-U cells according to the power control parameters respectively configured for the three LTE-U cells in the virtual cell, and performs power headroom reporting on the three LTE-U cells according to the power measurement result. .
  • the terminal can perform measurement simultaneously on the three LTE-U cells included in the virtual cell; if the terminal can only work on one LTE-U Cell, that is, each time period can only be When an LTE-U Cell performs measurement, the terminal performs measurement by means of time division multiplexing between three LTE-U cells included in the virtual cell. After the measurement result is obtained by the measurement, the measurement result is reported for each LTE-U Cell in the virtual cell.
  • the network device can dynamically change the configuration information of the virtual cell by using RRC signaling according to the measurement result or the interference condition on different LTE-U cells, for example, deleting LTE-U Cell-1, adding LTE-U Cell-4, and the like.
  • the terminal stops data transmission by means of time division multiplexing between the three LTE-U cells; when deactivated, the measurement configuration of the terminal can be redisplayed through the network side. Configuration.
  • the terminal When the virtual cell configured for the terminal is activated again or DRX on, the terminal resumes data transmission by means of time division multiplexing between the three LTE-U cells.
  • the embodiment of the present application further provides a terminal, and the specific content of the terminal may be implemented by referring to the foregoing method, and details are not described herein again.
  • FIG. 7 is a schematic diagram of a terminal according to an embodiment of the present disclosure, where the terminal includes:
  • the obtaining module 701 is configured to acquire configuration information of a virtual cell, where the virtual cell includes N cells, where N ⁇ 1;
  • the transmitting module 702 is configured to perform data transmission by means of time division multiplexing between the N cells.
  • the transmission module 702 is further configured to:
  • the time division multiplexing configuration information indicating a time period occupied by each cell when the terminal performs data transmission in the N cells, where each time segment indicates that the terminal is only Data transmission is performed on one of the N cells.
  • the transmission module 702 is further configured to:
  • the transmission module 702 is further configured to:
  • the transmission module 702 is further configured to:
  • the method further includes:
  • the detecting module 703 is configured to detect a PDCCH in each of the N cells, detect a PDSCH in the local cell according to the detected PDCCH, and use a PDCCH of each of the N cells to schedule transmission on the local cell. Resources; or
  • Detecting a PDCCH in a cell other than the virtual cell detecting a PDSCH in one or more of the N cells according to the detected PDCCH, and using a PDCCH of a cell other than the virtual cell to schedule the virtual cell Resources transmitted on one or more cells.
  • the method further includes:
  • the measuring module 704 is configured to perform power measurement on the virtual cell according to the power control parameter configured for the virtual cell, and perform power headroom reporting on the virtual cell according to the power measurement result; or
  • the method further includes:
  • a measuring module 704 configured to perform measurement simultaneously on N cells included in the virtual cell;
  • the measurement is performed by means of time division multiplexing between N cells included in the virtual cell, wherein only one of the N cells is measured in each time period.
  • the transmission module 702 is further configured to:
  • the measurement result is reported for each of the N cells.
  • the transmission module 702 is further configured to:
  • the number of the virtual cells is one or more;
  • the number of the virtual cells is multiple, one cell is allowed to be configured into multiple virtual cells, and the time division multiplexing configuration in the multiple virtual cells remains consistent.
  • the obtaining module 701 is further configured to:
  • carrier aggregation configuration information configured for the terminal, where the carrier aggregation configuration information includes primary cell configuration information and secondary cell configuration information, where the secondary cell configuration information includes at least one virtual cell configuration information, where the virtual cell includes N cells operating on unlicensed bands.
  • the embodiment of the present application further provides a network device, and the specific content of the network device may be implemented by referring to the foregoing method, and details are not described herein again.
  • FIG. 8 is a schematic diagram of a network device according to an embodiment of the present disclosure, where the network device includes:
  • the configuration module 801 is configured to configure a virtual cell for the terminal, where the virtual cell includes N cells, N ⁇ 1;
  • the transmission module 802 is configured to perform data transmission with the terminal by using a time division multiplexing manner among N cells included in the virtual cell.
  • the transmission module 802 is further configured to:
  • time division multiplexing configuration information indicates a time period occupied by each cell when the terminal performs data transmission in the N cells, where only each time segment indicates The terminal performs data transmission on one of the N cells.
  • the transmission module 802 is further configured to:
  • the transmission module 802 is further configured to:
  • the transmission module 802 is further configured to:
  • the transmission module 802 is further configured to:
  • the transmission module 802 is further configured to:
  • the measurement result is that the terminal performs measurement at the same time on the N cells included in the virtual cell; or
  • the measurement result is that the terminal performs measurement by means of time division multiplexing between N cells included in the virtual cell.
  • the transmission module 802 is further configured to:
  • a virtual cell is activated again or a DRX on command, to instruct the terminal to resume data transmission by means of time division multiplexing between the N cells.
  • the number of the virtual cells is one or more;
  • the number of the virtual cells is multiple, one cell is allowed to be configured into multiple virtual cells, and the time division multiplexing configuration in the multiple virtual cells remains consistent.
  • the configuration module 801 is further configured to:
  • the carrier aggregation configuration information includes primary cell configuration information and secondary cell configuration information, where the secondary cell configuration information includes at least one virtual cell configuration information, where the virtual cell includes N A cell operating on an unlicensed band.
  • FIG. 9 is a schematic diagram of another terminal according to an embodiment of the present disclosure.
  • the terminal includes: a transceiver 901, and at least one processor 902 connected to the transceiver 901, where:
  • the processor 902 is configured to read a program in the memory 903 and perform the following process:
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 902 and various circuits of memory represented by memory 903.
  • 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 901 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 904 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 902 is responsible for managing the bus architecture and general processing, and the memory 903 can store data used by the processor 902 in performing operations.
  • the transceiver 901 is further configured to:
  • the time division multiplexing configuration information indicating a time period occupied by each cell when the terminal performs data transmission in the N cells, where each time segment indicates that the terminal is only Data transmission is performed on one of the N cells.
  • the transceiver 901 is further configured to: receive cell handover indication information sent by the network device;
  • the processor 902 is further configured to: according to the cell handover indication information, switch from a currently working source cell to a target cell indicated by the cell handover indication information, where the source cell and the target cell are both It is a cell in the N cells.
  • the processor 902 is further configured to:
  • the processor 902 is further configured to: control the transceiver 901 to feed back to the network device in the N small Data reception in the district;
  • the transceiver 901 is further configured to: receive data that is retransmitted by the network device according to the data receiving situation, where the retransmitted data is transmitted by using a time division multiplexing manner among the N cells.
  • the processor 902 is further configured to:
  • Detecting a PDCCH in each of the N cells detecting a PDSCH in the local cell according to the detected PDCCH, where a PDCCH of each of the N cells is used to schedule resources transmitted on the local cell; or
  • Detecting a PDCCH in a cell other than the virtual cell detecting a PDSCH in one or more of the N cells according to the detected PDCCH, and using a PDCCH of a cell other than the virtual cell to schedule the virtual cell Resources transmitted on one or more cells.
  • the processor 902 is further configured to:
  • the processor 902 is further configured to:
  • the measurement is performed by means of time division multiplexing between N cells included in the virtual cell, wherein only one of the N cells is measured in each time period.
  • the processor 902 is further configured to:
  • the transceiver 901 is controlled to report the measurement result for each of the N cells.
  • the processor 902 is further configured to:
  • the transceiver 901 is controlled to stop data transmission by means of time division multiplexing between the N cells;
  • the transceiver 901 is controlled to resume data transmission by means of time division multiplexing between the N cells.
  • the number of the virtual cells is one or more;
  • the number of the virtual cells is multiple, one cell is allowed to be configured into multiple virtual cells, and the time division multiplexing configuration in the multiple virtual cells remains consistent.
  • the processor 902 is further configured to:
  • carrier aggregation configuration information configured for the terminal, where the carrier aggregation configuration information includes primary cell configuration information and secondary cell configuration information, where the secondary cell configuration information includes at least one virtual cell configuration information, where the virtual cell includes N cells operating on unlicensed bands.
  • FIG. 10 is a schematic diagram of another network device according to an embodiment of the present disclosure, where the network device includes: a transceiver 1001, And at least one processor 1002 coupled to the transceiver 1001, wherein:
  • the processor 1002 is configured to read a program in the memory 1003 and perform the following process:
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1002 and various circuits of memory represented by memory 1003.
  • 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 1001 can be a plurality of components, including a transmitter and a transceiver, provided for transmission
  • the processor 1002 is responsible for managing the bus architecture and general processing, and the memory 1003 can store data used by the processor 1002 in performing operations.
  • the processor 1002 is further configured to:
  • Time division multiplexing configuration information indicates a time period occupied by each cell when the terminal performs data transmission in the N cells, where each time The time period only indicates that the terminal performs data transmission on one of the N cells.
  • the processor 1002 is further configured to:
  • the source cell and the target cell are both cells in the N cells.
  • the processor 1002 is further configured to:
  • the transceiver 1001 is configured to perform time-division multiplexing between the N cells and perform data transmission with the terminal according to a set of uplink and downlink timing relationship information maintained by the terminal on the virtual cell.
  • the transceiver 1001 is further configured to: receive data reception status in the N cells fed back by the terminal;
  • the processor 1002 is further configured to: control, according to the data receiving situation, the transceiver 1001 to retransmit data to the terminal, where the retransmitted data is time division multiplexed between the N cells Data transfer.
  • the transceiver 1001 is further configured to: receive a power headroom reported by the terminal according to a power control parameter of the virtual cell; the processor 1002 is further configured to: according to the power headroom Each cell in the virtual cell performs power control;
  • the transceiver 1001 is further configured to: receive a power headroom of each cell that is reported by the terminal according to a power control parameter of each cell in the virtual cell; the processor 1002 is further configured to: according to each cell The power headroom performs power control for each cell separately.
  • the transceiver 1001 is further configured to:
  • the measurement result is that the terminal performs measurement at the same time on the N cells included in the virtual cell; or
  • the measurement result is that the terminal performs measurement by means of time division multiplexing between N cells included in the virtual cell.
  • the processor 1002 is further configured to:
  • the transceiver 1001 is controlled to send a virtual cell to the terminal to be activated again or a DRX on command to instruct the terminal to resume data transmission by means of time division multiplexing between the N cells.
  • the number of the virtual cells is one or more;
  • the number of the virtual cells is multiple, one cell is allowed to be configured into multiple virtual cells, and the time division multiplexing configuration in the multiple virtual cells remains consistent.
  • the processor 1002 is further configured to:
  • the carrier aggregation configuration information includes primary cell configuration information and secondary cell configuration information, where the secondary cell configuration information includes at least one virtual cell configuration information, where the virtual cell includes N A cell operating on an unlicensed band.
  • the configuration of the virtual cell is configured for the terminal by using the terminal, where the virtual cell includes N cells, N ⁇ 1; and the terminal passes the time division between the N cells.
  • the data transmission is performed in a manner of using the method.
  • the embodiment of the present application implements flexible adjustment of the UE service transmission carrier, avoids interference in different frequency domains, and does not affect the UE service transmission, so as to improve system transmission efficiency.
  • embodiments of the present application can be provided as a method, or a computer program product.
  • the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware.
  • the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本申请实施例公开了一种数据传输方法及装置,本申请实施例由于可配置包含多个小区的虚拟小区,并在这多个小区间采用时分复用方式进行数据传输,从而可以灵活调整终端业务传输载波。特别的,针对在非授权频谱资源上部署传输的情况下,将多个工作在非授权频段上的小区聚合为一个虚拟小区,并在这多个小区间采用时分复用方式进行数据传输,可以减少不同频域上的干扰,进而提高系统传输效率。

Description

一种数据传输方法及装置
本申请要求在2014年10月10日提交中国专利局、申请号为201410532529.8、发明名称为“一种数据传输方法及装置”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
本申请涉及通信领域,特别涉及一种数据传输方法及装置。
背景技术
高级长期演进(LTE Advanced,LTE-A)系统的峰值速率较长期演进(Long Term Evolution,LTE)系统有很大的提高,要求达到下行1Gbps,上行500Mbps。同时,LTE-A系统要求和LTE系统有很好的兼容性。基于提高峰值速率、与LTE系统兼容以及充分利用频谱资源的需要,LTE-A系统引入了载波聚合(Carrier Aggregation,CA)技术。
载波聚合技术是用户设备可以在多个小区上同时工作,一个小区包含一对上行(Uplink,UL)/下行(Downlink,DL)成员载波(Component Carrier,CC)。在载波聚合的系统中各个成员载波可以是连续,也可以是非连续的,各成员载波间的带宽可以相同或不同,为了保持和LTE系统兼容,每个成员载波的最大带宽限制为20MHz。LTE-A系统的载波聚合的小区分为主小区(Primary Cell,PCell)和辅小区(Secondary Cell,SCell)。用户设备(User Equipment,UE)聚合的小区中只有一个小区被定义为PCell,除了PCell之外的其它小区都称为SCell。
随着无线通信的飞速发展,对频谱资源的需求越来越多。由于移动数据业务量的不断增长,现有的授权频谱资源逐渐无法完全满足用户的需求,LTE系统开始考虑在非授权频谱资源上部署传输。
发明内容
本申请实施例提供一种数据传输方法及装置,用以实现在多个小区间采用时分复用方式进行数据传输。
本申请实施例提供的一种数据传输方法,包括:
终端获取虚拟小区的配置信息,所述虚拟小区中包含N个小区,N≥1;
所述终端在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,该方法还包括:
所述终端接收时分复用配置信息,所述时分复用配置信息指示出所述终端在所述N个 小区进行数据传输时各小区所占用的时间段,其中,每个时间段上仅指示所述终端在所述N个小区中的一个小区上进行数据传输;
所述终端在所述N个小区间通过时分复用的方式进行数据传输,包括:
所述终端根据所述时分复用配置信息,在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,所述终端在所述N个小区间通过时分复用的方式进行数据传输,包括:
所述终端接收网络设备发送的小区切换指示信息;
所述终端根据所述小区切换指示信息,从当前工作的源小区切换到所述小区切换指示信息所指示的目标小区进行数据传输,所述源小区和所述目标小区均为所述N个小区中的小区。
较佳地,该方法还包括:
所述终端在所述虚拟小区上维护一套上下行定时关系信息;
所述在所述N个小区间通过时分复用的方式进行数据传输,包括:
所述终端在所述N个小区间通过时分复用的方式并按照所述上下行定时关系信息进行数据传输。
较佳地,该方法还包括:
所述终端向网络设备反馈在所述N个小区中的数据接收情况;
所述终端接收所述网络设备根据所述数据接收情况重传的数据,其中,所述重传的数据在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,还包括:
所述终端在所述N个小区中的每个小区检测物理下行控制信道PDCCH,根据检测到的PDCCH在本小区检测物理下行共享信道PDSCH,所述N个小区中的每个小区的PDCCH用于调度本小区上传输的资源;或者
所述终端在所述虚拟小区以外的小区检测PDCCH,根据检测到的PDCCH在所述N个小区中的一个或多个小区检测PDSCH,所述虚拟小区以外的小区的PDCCH用于调度所述虚拟小区中的一个或多个小区上传输的资源。
较佳地,该方法还包括:
所述终端根据为所述虚拟小区配置的功率控制参数,对所述虚拟小区进行功率测量,并根据功率测量结果对所述虚拟小区进行功率余量上报;或者
所述终端根据为所述虚拟小区中的N个小区分别配置的功率控制参数,分别对所述N个小区进行功率测量,并根据功率测量结果分别对所述N个小区进行功率余量上报。
较佳地,该方法还包括:
所述终端在所述虚拟小区所包含的N个小区上同时进行测量;或者
所述终端在所述虚拟小区所包含的N个小区间通过时分复用的方式进行测量,其中,每个时间段上仅对所述N个小区中的一个小区进行测量。
较佳地,该方法还包括:
所述终端通过测量得到测量结果后,针对所述N个小区中的每个小区上报测量结果。
较佳地,该方法还包括:
当为所述终端配置的虚拟小区被去激活或非连续接收停止DRX off时,所述终端停止在所述N个小区间通过时分复用的方式进行数据传输;
当为所述终端配置的虚拟小区再次被激活或非连续接收开启DRX on时,所述终端恢复在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,所述虚拟小区的数量为一个或多个;
当所述虚拟小区的数量为多个时,一个小区被允许配置到多个虚拟小区中,且在所述多个虚拟小区中的时分复用配置保持一致。
较佳地,所述终端获取虚拟小区的配置信息,所述虚拟小区中包含N个小区,包括:
所述终端获取为所述终端配置的载波聚合配置信息,所述载波聚合配置信息中包括主小区配置信息和辅小区配置信息,所述辅小区配置信息中至少包括一个虚拟小区配置信息,所述虚拟小区包括N个工作在非授权频段上的小区。
本申请实施例提供的另一种数据传输方法,包括:
网络设备为终端配置虚拟小区,所述虚拟小区中包含N个小区,N≥1;
所述网络设备在所述虚拟小区所包含的N个小区间采用时分复用的方式与所述终端进行数据传输。
较佳地,该方法还包括:
所述网络设备向所述终端发送时分复用配置信息,所述时分复用配置信息指示出所述终端在所述N个小区进行数据传输时各小区所占用的时间段,其中,每个时间段上仅指示所述终端在所述N个小区中的一个小区上进行数据传输;
所述网络设备在所述虚拟小区所包含的N个小区间采用时分复用的方式与所述终端进行数据传输,包括:
所述网络设备根据所述时分复用配置信息,在所述N个小区间通过时分复用的方式与所述终端进行数据传输。
较佳地,所述网络设备在所述虚拟小区所包含的N个小区间采用时分复用的方式与所述终端进行数据传输,包括:
所述网络设备向所述终端发送小区切换指示信息,以使所述终端根据所述小区切换指示信息,从当前工作的源小区切换到所述小区切换指示信息所指示的目标小区进行数据传输,所述源小区和所述目标小区均为所述N个小区中的小区。
较佳地,所述网络设备在所述虚拟小区所包含的N个小区间采用时分复用的方式与所述终端进行数据传输,包括:
所述网络设备在所述N个小区间通过时分复用的方式并按照所述网络设备在所述虚拟小区上维护的一套上下行定时关系信息与所述终端进行数据传输。
较佳地,该方法还包括:
所述网络设备接收所述终端反馈的在所述N个小区中的数据接收情况;
所述网络设备根据所述数据接收情况向所述终端重传数据,其中,所述重传的数据在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,该方法还包括:
所述网络设备接收所述终端根据所述虚拟小区的功率控制参数上报的功率余量,并根据所述功率余量对所述虚拟小区中的每个小区进行功率控制;或者
所述网络设备接收所述终端根据所述虚拟小区中的每个小区的功率控制参数上报的每个小区的功率余量,并根据每个小区的功率余量分别对每个小区进行功率控制。
较佳地,还包括:
所述网络设备向所述终端发送所述虚拟小区被去激活或DRX off指令,以指示所述终端停止在所述N个小区间通过时分复用的方式进行数据传输;
所述网络设备向所述终端发送虚拟小区再次被激活或DRX on指令,以指示所述终端恢复在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,所述虚拟小区的数量为一个或多个;
当所述虚拟小区的数量为多个时,一个小区被允许配置到多个虚拟小区中,且在所述多个虚拟小区中的时分复用配置保持一致。
较佳地,所述网络设备为所述终端配置虚拟小区的配置信息,包括:
所述网络设备为所述终端配置载波聚合配置信息,所述载波聚合配置信息中包括主小区配置信息和辅小区配置信息,所述辅小区配置信息中至少包括一个虚拟小区配置信息,所述虚拟小区包括N个工作在非授权频段上的小区。
本申请实施例提供的一种终端,包括:
获取模块,用于获取虚拟小区的配置信息,所述虚拟小区中包含N个小区,N≥1;
传输模块,用于在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,所述传输模块还用于:
接收时分复用配置信息,所述时分复用配置信息指示出所述终端在所述N个小区进行数据传输时各小区所占用的时间段,其中,每个时间段上仅指示所述终端在所述N个小区中的一个小区上进行数据传输;
根据所述时分复用配置信息,在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,所述传输模块还用于:
接收网络设备发送的小区切换指示信息;
根据所述小区切换指示信息,从当前工作的源小区切换到所述小区切换指示信息所指示的目标小区进行数据传输,所述源小区和所述目标小区均为所述N个小区中的小区。
较佳地,所述传输模块还用于:
在所述虚拟小区上维护一套上下行定时关系信息;在所述N个小区间通过时分复用的方式并按照所述上下行定时关系信息进行数据传输。
较佳地,所述传输模块还用于:
向网络设备反馈在所述N个小区中的数据接收情况;
接收所述网络设备根据所述数据接收情况重传的数据,其中,所述重传的数据在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,还包括:
检测模块,用于在所述N个小区中的每个小区检测PDCCH,根据检测到的PDCCH在本小区检测PDSCH,所述N个小区中的每个小区的PDCCH用于调度本小区上传输的资源;或者
在所述虚拟小区以外的小区检测PDCCH,根据检测到的PDCCH在所述N个小区中的一个或多个小区检测PDSCH,所述虚拟小区以外的小区的PDCCH用于调度所述虚拟小区中的一个或多个小区上传输的资源。
较佳地,还包括:
测量模块,用于根据为所述虚拟小区配置的功率控制参数,对所述虚拟小区进行功率测量,并根据功率测量结果对所述虚拟小区进行功率余量上报;或者
根据为所述虚拟小区中的N个小区分别配置的功率控制参数,分别对所述N个小区进行功率测量,并根据功率测量结果分别对所述N个小区进行功率余量上报。
较佳地,还包括:
测量模块,用于在所述虚拟小区所包含的N个小区上同时进行测量;或者
在所述虚拟小区所包含的N个小区间通过时分复用的方式进行测量,其中,每个时间段上仅对所述N个小区中的一个小区进行测量。
较佳地,所述传输模块还用于:
针对所述N个小区中的每个小区上报测量结果。
较佳地,所述传输模块还用于:
当为所述终端配置的虚拟小区被去激活或DRX off时,停止在所述N个小区间通过时分复用的方式进行数据传输;
当为所述终端配置的虚拟小区再次被激活或DRX on时,恢复在所述N个小区间通过 时分复用的方式进行数据传输。
较佳地,所述虚拟小区的数量为一个或多个;
当所述虚拟小区的数量为多个时,一个小区被允许配置到多个虚拟小区中,且在所述多个虚拟小区中的时分复用配置保持一致。
较佳地,所述获取模块还用于:
获取为所述终端配置的载波聚合配置信息,所述载波聚合配置信息中包括主小区配置信息和辅小区配置信息,所述辅小区配置信息中至少包括一个虚拟小区配置信息,所述虚拟小区包括N个工作在非授权频段上的小区。
本申请实施例提供的一种网络设备,包括:
配置模块,用于为终端配置虚拟小区,所述虚拟小区中包含N个小区,N≥1;
传输模块,用于在所述虚拟小区所包含的N个小区间采用时分复用的方式与所述终端进行数据传输。
较佳地,所述传输模块还用于:
向所述终端发送时分复用配置信息,所述时分复用配置信息指示出所述终端在所述N个小区进行数据传输时各小区所占用的时间段,其中,每个时间段上仅指示所述终端在所述N个小区中的一个小区上进行数据传输;
根据所述时分复用配置信息,在所述N个小区间通过时分复用的方式与所述终端进行数据传输。
较佳地,所述传输模块还用于:
向所述终端发送小区切换指示信息,以使所述终端根据所述小区切换指示信息,从当前工作的源小区切换到所述小区切换指示信息所指示的目标小区进行数据传输,所述源小区和所述目标小区均为所述N个小区中的小区。
较佳地,所述传输模块还用于:
在所述N个小区间通过时分复用的方式并按照所述终端在所述虚拟小区上维护的一套上下行定时关系信息与所述终端进行数据传输。
较佳地,所述传输模块还用于:
接收所述终端反馈的在所述N个小区中的数据接收情况;
根据所述数据接收情况向所述终端重传数据,其中,所述重传的数据在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,所述传输模块还用于:
接收所述终端根据所述虚拟小区的功率控制参数上报的功率余量,并根据所述功率余量对所述虚拟小区中的每个小区进行功率控制;或者
接收所述终端根据所述虚拟小区中的每个小区的功率控制参数上报的每个小区的功 率余量,并根据每个小区的功率余量分别对每个小区进行功率控制。
较佳地,所述传输模块还用于:
向所述终端发送所述虚拟小区被去激活或DRX off指令,以指示所述终端停止在所述N个小区间通过时分复用的方式进行数据传输;
向所述终端发送虚拟小区再次被激活或DRX on指令,以指示所述终端恢复在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,所述虚拟小区的数量为一个或多个;
当所述虚拟小区的数量为多个时,一个小区被允许配置到多个虚拟小区中,且在所述多个虚拟小区中的时分复用配置保持一致。
较佳地,所述配置模块还用于:
为所述终端配置载波聚合配置信息,所述载波聚合配置信息中包括主小区配置信息和辅小区配置信息,所述辅小区配置信息中至少包括一个虚拟小区配置信息,所述虚拟小区包括N个工作在非授权频段上的小区。
本申请实施例提供的另一种终端,包括:收发机,以及与所述收发机连接的至少一个处理器,其中:
处理器,用于读取存储器中的程序,执行下列过程:
获取虚拟小区的配置信息,所述虚拟小区中包含N个小区,N≥1;控制所述收发机在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,所述收发机还用于:
接收时分复用配置信息,所述时分复用配置信息指示出所述终端在所述N个小区进行数据传输时各小区所占用的时间段,其中,每个时间段上仅指示所述终端在所述N个小区中的一个小区上进行数据传输。
较佳地,所述收发机还用于:接收网络设备发送的小区切换指示信息;
所述处理器还用于:根据所述小区切换指示信息,从当前工作的源小区切换到所述小区切换指示信息所指示的目标小区进行数据传输,所述源小区和所述目标小区均为所述N个小区中的小区。
较佳地,所述处理器还用于:
在所述虚拟小区上维护一套上下行定时关系信息;控制所述收发机在所述N个小区间通过时分复用的方式并按照所述上下行定时关系信息进行数据传输。
较佳地,所述处理器还用于:控制所述收发机向网络设备反馈在所述N个小区中的数据接收情况;
所述收发机还用于:接收所述网络设备根据所述数据接收情况重传的数据,其中,所述重传的数据在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,所述处理器还用于:
在所述N个小区中的每个小区检测PDCCH,根据检测到的PDCCH在本小区检测PDSCH,所述N个小区中的每个小区的PDCCH用于调度本小区上传输的资源;或者
在所述虚拟小区以外的小区检测PDCCH,根据检测到的PDCCH在所述N个小区中的一个或多个小区检测PDSCH,所述虚拟小区以外的小区的PDCCH用于调度所述虚拟小区中的一个或多个小区上传输的资源。
较佳地,所述处理器还用于:
根据为所述虚拟小区配置的功率控制参数,对所述虚拟小区进行功率测量,并根据功率测量结果对所述虚拟小区进行功率余量上报;或者
根据为所述虚拟小区中的N个小区分别配置的功率控制参数,分别对所述N个小区进行功率测量,并根据功率测量结果分别对所述N个小区进行功率余量上报。
较佳地,所述处理器还用于:
在所述虚拟小区所包含的N个小区上同时进行测量;或者
在所述虚拟小区所包含的N个小区间通过时分复用的方式进行测量,其中,每个时间段上仅对所述N个小区中的一个小区进行测量。
较佳地,所述处理器还用于:
得到测量结果后,针对所述N个小区中的每个小区控制所述收发机上报测量结果。
较佳地,所述处理器还用于:
当为所述终端配置的虚拟小区被去激活或DRX off时,控制所述收发机停止在所述N个小区间通过时分复用的方式进行数据传输;
当为所述终端配置的虚拟小区再次被激活或DRX on时,控制所述收发机恢复在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,所述虚拟小区的数量为一个或多个;
当所述虚拟小区的数量为多个时,一个小区被允许配置到多个虚拟小区中,且在所述多个虚拟小区中的时分复用配置保持一致。
基于上述任一实施例,所述处理器还用于:
获取为所述终端配置的载波聚合配置信息,所述载波聚合配置信息中包括主小区配置信息和辅小区配置信息,所述辅小区配置信息中至少包括一个虚拟小区配置信息,所述虚拟小区包括N个工作在非授权频段上的小区。
本申请实施例提供的另一种网络设备,包括:收发机,以及与所述收发机连接的至少一个处理器,其中:
所述处理器,用于读取存储器中的程序,执行下列过程:
为终端配置虚拟小区,所述虚拟小区中包含N个小区,N≥1;控制所述收发机在所述 虚拟小区所包含的N个小区间采用时分复用的方式与所述终端进行数据传输。
较佳地,所述处理器还用于:
控制所述收发机向所述终端发送时分复用配置信息,所述时分复用配置信息指示出所述终端在所述N个小区进行数据传输时各小区所占用的时间段,其中,每个时间段上仅指示所述终端在所述N个小区中的一个小区上进行数据传输。
较佳地,所述处理器还用于:
控制所述收发机向所述终端发送小区切换指示信息,以使所述终端根据所述小区切换指示信息,从当前工作的源小区切换到所述小区切换指示信息所指示的目标小区进行数据传输,所述源小区和所述目标小区均为所述N个小区中的小区。
较佳地,所述处理器还用于:
控制所述收发机在所述N个小区间通过时分复用的方式并按照所述终端在所述虚拟小区上维护的一套上下行定时关系信息与所述终端进行数据传输。
较佳地,所述收发机还用于:接收所述终端反馈的在所述N个小区中的数据接收情况;
所述处理器还用于:根据所述数据接收情况控制所述收发机向所述终端重传数据,其中,所述重传的数据在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,所述收发机还用于:接收所述终端根据所述虚拟小区的功率控制参数上报的功率余量;所述处理器还用于:根据所述功率余量对所述虚拟小区中的每个小区进行功率控制;
或者
所述收发机还用于:接收所述终端根据所述虚拟小区中的每个小区的功率控制参数上报的每个小区的功率余量;所述处理器还用于:根据每个小区的功率余量分别对每个小区进行功率控制。
较佳地,所述收发机还用于:
接收所述终端针对所述N个小区中的每个小区上报的测量结果;
其中,所述测量结果是所述终端在所述虚拟小区所包含的N个小区上同时进行测量得到的;或者
所述测量结果是所述终端在所述虚拟小区所包含的N个小区间通过时分复用的方式进行测量得到的。
较佳地,所述处理器还用于:
控制所述收发机向所述终端发送所述虚拟小区被去激活或DRX off指令,以指示所述终端停止在所述N个小区间通过时分复用的方式进行数据传输;
控制所述收发机向所述终端发送虚拟小区再次被激活或DRX on指令,以指示所述终端恢复在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,所述虚拟小区的数量为一个或多个;
当所述虚拟小区的数量为多个时,一个小区被允许配置到多个虚拟小区中,且在所述多个虚拟小区中的时分复用配置保持一致。
基于上述任一实施例,所述处理器还用于:
为所述终端配置载波聚合配置信息,所述载波聚合配置信息中包括主小区配置信息和辅小区配置信息,所述辅小区配置信息中至少包括一个虚拟小区配置信息,所述虚拟小区包括N个工作在非授权频段上的小区。
本申请的上述实施例中,由于可配置包含多个小区的虚拟小区,并在这多个小区间采用时分复用方式进行数据传输,从而可以灵活调整终端业务传输载波。特别的,针对在非授权频谱资源上部署传输的情况下,将多个工作在非授权频段上的小区聚合为一个虚拟小区,并在这多个小区间采用时分复用方式进行数据传输,可以减少不同频域上的干扰,进而提高系统传输效率。
附图说明
图1为本申请实施例适用的系统架构示意图;
图2为虚拟小区作为辅小区的一种模型示意图,其中,LTE-U为频分双工(Frequency Division Duplexing,FDD)类型;
图3为虚拟小区作为辅小区的另一种模型示意图,其中,LTE-U为时分双工(Time Division Duplexing,TDD)类型;
图4为本申请实施例提供的一种网络侧的数据传输流程示意图;
图5为本申请实施例提供的虚拟小区上的数据传输示意图;
图6为本申请实施例提供的一种终端侧的数据传输流程示意图;
图7为本申请实施例提供的一种终端示意图;
图8为本申请实施例提供的一种网络设备示意图;
图9为本申请实施例提供的另一种终端示意图;
图10为本申请实施例提供的另一种网络设备示意图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚,下面将结合附图对本申请作进一步地详细描述,显然,所描述的实施例仅仅是本申请一部份实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例,都属于本申请保护的范围。
如图1所示,本申请实施例适用的系统架构示意图。该系统架构中包括网络设备,以 及至少一个终端;其中,所述网络设备可以为基站,所述终端为具有无线通信功能的移动设备,比如手机。
本申请实施例中,网络设备可为终端配置虚拟小区,该虚拟小区包含N(N≥1)个小区。如图2所示,为虚拟小区作为辅小区的一种模型示意图,其中,LTE-U为FDD类型。如图3所示,为虚拟小区作为辅小区的另一种模型示意图,其中,LTE-U为TDD类型。网络设备与终端之间可在虚拟小区所包含的N个小区间通过时分复用的方式进行数据传输。
基于上述架构,本申请实施例分别基于网络侧和终端侧提供了一种数据传输方法。其中,网络侧的数据传输方法和终端侧的数据传输方法可分别独立使用,也可结合使用。下面分别对网络侧和终端侧的数据传输方法进行描述。
图4为本申请实施例提供的一种数据传输流程示意图,该流程示出了网络侧的处理流程,包括以下步骤401至步骤402:
步骤401,网络设备为终端配置虚拟小区,所述虚拟小区中包含N个小区,N≥1;
步骤402,所述网络设备在所述虚拟小区所包含的N个小区间采用时分复用的方式与所述终端进行数据传输。
其中,所述虚拟小区的数量为一个或多个,这里的多个是指两个或两个以上。当虚拟小区的数量为多个时,一个小区被允许配置到多个虚拟小区中,且在所述多个虚拟小区中的时分复用配置保持一致。例如,网络设备为终端配置的虚拟小区包括虚拟小区1和虚拟小区2,一个实际小区LTE-U 1可属于虚拟小区1也可同时属于虚拟小区2,这种情况下,LTE-U 1在虚拟小区1中被分配的传输时间段以及在虚拟小区2中被分配的传输时间段相同。其中,LTE-U小区是指工作在非授权频段上的小区。
进一步地,网络设备还可以根据小区测量情况或干扰情况的变化,动态改变虚拟小区所包含的小区集合,比如从虚拟小区中删除小区或在虚拟小区中添加小区等。网络设备在更新虚拟小区后,可通过无线资源控制协议(Radio Resource Control,RRC)信令将虚拟小区的配置信息发送给终端。
上述流程中的虚拟小区是指N个小区的集合。以LTE系统为例,在步骤401中,网络设备为终端配置虚拟小区时,可将多个工作在LTE系统授权频段的小区聚合为一个虚拟小区,或者将部分工作在LTE系统授权频段和部分工作在LTE系统非授权频段的小区聚合为一个虚拟小区,或者将多个工作在LTE系统非授权频段的小区聚合为一个虚拟小区。
例如,网络设备可采用载波聚合技术为终端配置载波聚合配置信息,并将该载波聚合配置信息发送给该终端。该载波聚合配置信息中包含主小区配置信息,比如主小区所在的频点,还包括辅小区配置信息。所述辅小区配置信息中可包括一个或多个虚拟小区的配置信息。一个虚拟小区如上所述,可包括N个小区,虚拟小区的配置信息可包含这N个小区 的频点。这N个小区的频点可以在LTE系统的非授权频段上,即,这N个小区可以是工作在LTE系统非授权频段上的小区。
由于非授权频谱资源可以由多种系统共享,如可能存在无线保真(WIreless-Fidelity,Wi-Fi)等其他网络与LTE网络部署,因此LTE系统在非授权频谱资源上的干扰情况较不稳定。本申请实施例通过将N个工作在LTE系统非授权频段上的小区聚合为虚拟小区,并在该N个小区间采用时分复用的方式进行数据传输,可以灵活调整UE业务传输载波,在躲避不同频域上干扰的同时,也不影响UE的业务传输,从而充分利用非授权频谱资源,提高LTE系统在非授权频谱资源上的传输性能。
为了使网络设备和终端在所述虚拟小区所包含的N个小区间采用时分复用的方式进行数据传输,网络设备需要将时分复用的配置告知终端,为此,本申请实施例提供了以下两种方式(方式一和方式二)。
方式一:静态通知方式
该方式中,网络设备向终端发送时分复用配置信息,所述时分复用配置信息指示出所述终端在所述N个小区进行数据传输时各小区所占用的时间段,其中,每个时间段上仅指示所述终端在所述N个小区中的一个小区上进行数据传输,以实现网络设备与终端在所述N个小区间进行时分复用传输。
其中,所述时分复用配置信息可由网络设备确定或者通过网络设备间协商得到。例如,在将多个LTE-U小区进行载波聚合为一个虚拟小区为终端提供服务的场景下,LTE-U基站可以通过与周边的LTE-U基站或无线本地网络接入点(Wireless Local Area NetworksAccess Point,WLAN AP)进行协商得到各个小区的干扰情况,进而确定出在这些小区上进行数据传输的时分复用配置信息。再例如,在传统小区(legacy Cell)和LTE-U小区协同为终端服务的场景下,由这些小区中的一个小区的基站来决定虚拟小区的时分复用配置信息,该基站可将该时分复用配置信息通过专用信令通知给终端。
所述时分复用配置信息可表现为TDM pattern(时分复用图样),所述TDM pattern是长度为N比特的位图,每个比特位对应所述N个小区中的一个小区或小区频点。当某个比特位的值为0时,表示在相应小区进行数据传输,某个比特位为1时,表示不在相应小区进行数据传输,在每个小区进行数据传输的时间长度均相同,反之亦然。终端可以根据该TDM pattern在所述N个小区间进行切换,从而在所述N个小区间采用时分复用的方式与网络设备进行数据传输。图5为本申请实施例提供的虚拟小区上的数据传输示意图,具体地,终端在所述N个小区间采用时分复用的方式与网络设备进行数据传输。
所述时分复用配置信息可由网络设备通过专用信令发送给该终端,该专用信令中可携带上述TDM pattern。所述专用信令可以是L1信令(即数据链路级信令)、L2信令(即链路功能级信令)或L3信令(即网络功能级信令)。例如,该专用信令可以是RRC信令。
所述时分复用配置信息可适用于一个或多个调度周期。
通过以上静态通知方式,网络设备可将完整的时分复用配置信息发送给终端,网络设备和终端基于该完整的时分复用配置信息,在所述N个小区间采用时分复用的方式与所述终端进行数据传输。
方式二:动态通知方式
在该方式中,网络设备向终端发送小区切换指示信息,以使所述终端根据所述小区切换指示信息,从当前工作的源小区切换到所述小区切换指示信息所指示的目标小区进行数据传输,所述源小区和所述目标小区均为所述N个小区中的小区。
具体来说,在该方式中,网络设备自行判断在所述N个小区间进行数据传输的切换时机,即,时分复用配置信息不是预先完整得到的,而是网络设备根据数据传输情况动态确定出来的。比如,LTE-U基站可根据各个小区干扰情况确定在所述N个小区间进行数据传输的切换时机,并通过控制信令通知终端切换到目标小区进行数据传输。所述控制信令可以是L1信令或L2信令。其中,各个小区的干扰情况可以基于终端测量上报得到,也可以基于网络设备自己的测量获得。
终端进行小区切换需要一定时延。考虑到切换时延(timing)以及频点切换时间和业务中断时间等因素,在一个优选实施例中,网络设备可提前时间t通知终端进行小区切换,进一步地,可再将切换时刻通知给终端,t表示距离小区切换的时间长度,这样,网络设备和终端可在同一时刻切换到目标小区进行数据传输。
通过上述动态通知方式,网络设备可根据数据传输情况灵活地选择干扰小的小区为终端提供业务传输。
本申请实施例中,基于虚拟小区的配置,在测量配置和终端测量上报的机制上相应进行了改进。
网络设备为终端进行测量配置时,可针对虚拟小区进行测量配置,即,按照虚拟小区为单位进行测量配置。针对虚拟小区所配置的测量参数适用于该虚拟小区中的每个小区。
网络设备也可为虚拟小区中的每个小区分别进行测量配置,即,按照虚拟小区中的每个小区为单位进行测量配置。为虚拟小区中的每个小区所配置的测量配置参数可以相同也可以不同。
相应地,终端根据测量配置进行测量和上报。
进一步地,网络设备还可以为终端配置测量图样(测量pattern),该测量图样指示出了对虚拟小区中的每个小区进行测量所占用的时间段。测量图样与时分复用图样可以相同也可以不同,若相同,则终端可在当前业务接收小区执行测量。
测量图样可指示终端同时在虚拟小区中的多个小区上进行测量,甚至指示终端同时在虚拟小区中的所有小区上进行测量,这种情况可适用于终端有足够大的工作带宽的场景。 测量图样也可以指示终端采用时分复用方式在虚拟小区所包含的多个小区间进行测量,每个小区上的测量时间段彼此没有重合,即,一个时刻只能测量1个小区,这种情况可适用于终端仅能工作在一个小区上的场景。
测量图样也可以预先定义。
本申请实施例中允许跨小区进行混合自动重传请求(Hybrid Automatic Repeat Request,HARQ)过程。具体来说,网络设备接收终端反馈的在虚拟小区所包含的所述N个小区中的数据接收情况后,可根据所述数据接收情况向所述终端重传数据,其中,所述重传的数据在所述N个小区间通过时分复用的方式进行数据传输。
例如,网络设备接收到终端针对虚拟小区中的LTE-U1小区的未确认(Nacknowledge,NACK)反馈信息后,由于当前正在该虚拟小区中的LTE-U2小区对该终端进行下行数据传输,因此可通过LTE-U2小区将LTE-U1小区中未确认接收的数据重传给该终端。如果第一次重传仍失败,则可进行多次重传。根据该虚拟小区的时分复用配置信息,该未确认接收的数据的多次重传过程可能发生在不同的小区,即,重传的数据在所述N个小区间通过时分复用的方式进行数据传输。
本申请实施例中,允许物理下行控制信道(Physical Downlink Control Channel,PDCCH)同载波或跨载波调度物理下行共享信道(Physical Downlink Shared Channel,PDSCH)。
具体来说,网络设备在虚拟小区中的所有或部分小区上发送PDCCH,该PDCCH用于调度本小区上传输的资源,该PDCCH指示出本小区上的PDSCH的位置。网络设备还可以在虚拟小区所包含的小区以外的小区上发送PDCCH,该PDCCH用于调度虚拟小区中的一个或多个小区上传输的资源,该PDCCH指示出虚拟小区中的一个小区或多个小区上的PDSCH的发送位置。
在一个优选实施例中,网络设备和终端针对所述虚拟小区维护一套上下行定时关系信息,所述上下行定时关系信息用于指示上下行子帧的配置情况,该上下行定时关系信息适用于虚拟小区中的每个小区。相应地,在步骤402中,网络设备在所述N个小区间通过时分复用的方式并按照所述虚拟小区上维护的一套上下行定时关系信息与所述终端进行数据传输。
在功率控制方面,本申请实施例中,网络设备可基于虚拟小区进行功率控制,也可以基于虚拟小区中的每个小区进行功率控制。
如果网络设备基于虚拟小区进行功率控制,则终端可基于虚拟小区进行功率余量上报,相应地,网络设备接收所述终端根据所述虚拟小区的功率控制参数上报的功率余量,并根据该功率余量对该虚拟小区中的每个小区进行功率控制。如果网络设备基于虚拟小区中的每个小区进行功率控制,则终端可基于虚拟小区中的每个小区进行功率余量上报,相应地,网络设备接收所述终端根据所述虚拟小区中的每个小区的功率控制参数上报的每个 小区的功率余量,并根据每个小区的功率余量分别对每个小区进行功率控制。
在本申请的另一个实施例中,网络设备还可以对虚拟小区进行激活或去激活,或者进行非连续接收开启(Discontinuous Reception-on,DRX-on)或非连续接收停止DRX-off控制。
具体来说,网络设备可以向终端发送虚拟小区被去激活或DRX off的指令,以指示所述终端停止在所述虚拟小区的N个小区间通过时分复用的方式进行数据传输。网络设备还可以向所述终端发送虚拟小区再次被激活或DRX on指令,以指示所述终端恢复在所述虚拟小区的N个小区间通过时分复用的方式进行数据传输。其中,终端在所述虚拟小区的N个小区间通过时分复用的方式进行数据传输时所使用的时分复用配置信息(如TDM pattern)可以与虚拟小区被去激活或DRX off之前所使用的时分复用配置信息相同,也可以使用另行配置的时分复用配置信息。
进一步地,在虚拟小区被去激活或DRX off的情况下,终端针对虚拟小区进行小区测量所使用的测量图样,可以是网络设备为该终端另行配置的,这样,虚拟小区被激活和去激活的情况下所使用的测量图样可以不同,或者DRX on和DRX off情况下所使用的测量图样可以不同。当然也可以继续使用原有的测量图样,即使用虚拟小区激活或DRX on的情况下所使用的测量图样。
本申请实施例通过网络设备为终端配置虚拟小区,所述虚拟小区中包含N个的小区,N≥1;网络设备在所述N个小区间通过时分复用的方式与所述终端进行数据传输;本申请实施例实现了灵活调整UE业务传输载波,躲避不同频域上干扰的同时,也不影响UE业务传输,用以提高系统传输效率。
图6为本申请实施例提供的一种数据传输流程示意图,该流程示出了终端侧的处理流程,包括以下步骤601至步骤602:
步骤601,终端获取虚拟小区的配置信息,所述虚拟小区中包含N个小区,N≥1;
步骤602,所述终端在所述N个小区间通过时分复用的方式进行数据传输。
为了使网络设备和终端在所述虚拟小区所包含的N个小区间采用时分复用的方式进行数据传输,终端需要获取时分复用的配置信息,为此,本申请实施例提供了两种方式(方式一和方式二)。
方式一:静态获取方式,与上文所述的网络设备的静态通知方式相对应。
该方式中,终端接收时分复用配置信息,所述时分复用配置信息指示出所述终端在所述N个小区进行数据传输时各小区所占用的时间段,其中,每个时间段上仅指示所述终端在所述N个小区中的一个小区上进行数据传输,以实现网络设备与终端在所述N个小区间进行时分复用传输。
方式二:动态通知方式,与上文所述的网络设备的动态通知方式相对应。
在该方式中,终端接收网络设备发送的小区切换指示信息,根据所述小区切换指示信息,从当前工作的源小区切换到所述小区切换指示信息所指示的目标小区进行数据传输,所述源小区和所述目标小区均为所述N个小区中的小区。
进一步地,终端在所述虚拟小区上维护一套上下行定时关系信息,所述上下行定时关系信息用于指示上下行子帧的配置情况,该上下行定时关系信息适用于虚拟小区中的每个小区。相应地,在步骤602中,终端获取到时分复用的配置信息后,在所述N个小区间通过时分复用的方式并按照所述上下行定时关系信息与网络设备进行数据传输。
本申请实施例中允许跨小区进行HARQ过程。具体来说,终端向网络设备反馈在虚拟小区所包含的所述N个小区中的数据接收情况后,接收网络设备根据所述数据接收情况重传的数据,其中,所述重传的数据在所述N个小区间通过时分复用的方式进行数据传输。其中,网络设备向该终端发送重传数据的实现方式可参照前述实施例,此处不再赘述。
本申请实施例中,允许PDCCH同载波或跨载波调度PDSCH。
具体来说,终端在所述N个小区中的每个小区检测PDCCH,根据检测到的PDCCH在本小区检测PDSCH,所述N个小区中的每个小区的PDCCH用于调度本小区上传输的资源;或者所述终端在所述虚拟小区以外的小区检测PDCCH,根据检测到的PDCCH在所述N个小区中的一个或多个小区检测PDSCH,所述虚拟小区以外的小区的PDCCH用于调度所述虚拟小区中的一个或多个小区上传输的资源。其中,所述虚拟小区以外的小区可以是指载波聚合的主小区或非虚拟小区。
在功率测量方面,本申请实施例中,终端可基于虚拟小区进行功率测量,也可以基于虚拟小区中的每个小区进行功率控制。
终端可根据为所述虚拟小区配置的功率控制参数,对所述虚拟小区进行功率测量,并根据功率测量结果对所述虚拟小区进行功率余量上报;或者所述终端可根据为所述虚拟小区中的N个小区分别配置的功率控制参数,分别对所述N个小区进行功率测量,并根据功率测量结果分别对所述N个小区进行功率余量上报。
进一步地,终端获取网络设备为终端配置的测量图样,该测量图样指示出了对虚拟小区中的每个小区进行测量所占用的时间段。测量图样与时分复用图样可以相同也可以不同,若相同,则终端可在当前业务接收小区执行测量。
测量图样可指示终端同时在虚拟小区中的多个小区上进行测量,甚至指示终端同时在虚拟小区中的所有小区上进行测量,这种情况可适用于终端有足够大的工作带宽的场景。测量图样也可以指示终端采用时分复用方式在虚拟小区所包含的多个小区间进行测量,每个小区上的测量时间段彼此没有重合,即,一个时刻只能测量1个小区,这种情况可适用于终端仅能工作在一个小区上的场景。
测量图样也可以预先定义。
进一步地,终端通过测量得到测量结果后,针对所述N个小区中的每个小区上报测量结果。
本申请实施例中,当为所述终端配置的虚拟小区被去激活或DRX off时,所述终端停止在所述N个小区间通过时分复用的方式进行数据传输;当为所述终端配置的虚拟小区再次被激活或DRX on时,所述终端恢复在所述N个小区间通过时分复用的方式进行数据传输。其中,终端在所述虚拟小区的N个小区间通过时分复用的方式进行数据传输时所使用的时分复用配置信息(如TDM pattern)可以与虚拟小区被去激活或DRX off之前所使用的时分复用配置信息相同,也可以使用另行配置的时分复用配置信息。
进一步地,在虚拟小区被去激活或DRX off的情况下,终端针对虚拟小区进行小区测量所使用的测量图样,可以是网络设备为该终端另行配置的,这样,虚拟小区被激活和去激活的情况下所使用的测量图样可以不同,或者DRX on和DRX off情况下所使用的测量图样可以不同。当然也可以继续使用原有的测量图样,即使用虚拟小区激活或DRX on的情况下所使用的测量图样。
本申请实施例通过终端获取虚拟小区的配置信息,所述虚拟小区中包含N个的小区,N≥1;终端在所述N个小区间通过时分复用的方式进行数据传输;本申请实施例实现了灵活调整UE业务传输载波,躲避不同频域上干扰的同时,也不影响UE业务传输,用以提高系统传输效率。
为了使本申请的目的、技术方案及有益效果更加清楚明白,以下结合本申请所述方法的整体过程,对本申请进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本申请,并不用于限定本申请。
本申请实施例一:FDD载波构造虚拟小区的情形
网络设备为终端配置载波聚合配置信息,分别为1个主小区的配置信息和一个虚拟小区的配置信息,其中,主小区为FDD小区,虚拟小区包含三个工作在非授权频段上的FDD小区,分别命名为LTE-U Cell-1、LTE-U Cell-2、LTE-U Cell-3。
终端为主小区和辅小区分别维护一个HARQ实体,上行工作在主小区上,下行工作在主小区和虚拟小区上;在虚拟小区上终端在同一时刻只能通过LTE-U Cell-1、LTE-U Cell-2、LTE-U Cell-3中一个小区进行下行业务接收处理。
网络设备可以通过无线资源控制协议RRC信令同时为终端配置在虚拟小区上的工作模式,即时分复用配置信息,即终端通过三个LTE-U Cell中哪一个小区进行业务接收处理,例如子帧0、1、2在LTE-U Cell-1接收下行数据,子帧3、4、5在LTE-U Cell-2接收下行数据,子帧6、7、8在LTE-U Cell-3上接收下行数据,子帧9不需要接收下行数据。其中,时分复用配置信息可以由网络设备通过RRC信令配置,也可以由网络设备根据不同的LTE-U Cell的干扰情况,向终端发送小区切换指示信息,以指示所述终端从当前工作的源 小区切换到所述小区切换指示信息所指示的目标小区进行数据传输,所述源小区和所述目标小区均为所述N个小区中的小区。
终端根据网络设备配置的时分复用配置信息在各个LTE-U Cell上接收下行数据,下行数据的调度信令可以来自相同的LTE-U Cell或PCell;
终端根据为虚拟小区配置的上下行定时关系信息,在3个LTE-U Cell间通过时分复用的方式并按照上下行定时关系信息进行数据传输。
终端向网络设备反馈在3个LTE-U Cell中的一个小区,例如LTE-U Cell-1的数据接收情况,网络设备根据数据接收情况向终端重传数据,重传的数据可以在LTE-U Cell-1上发送,也可以在LTE-U Cell-2或LTE-U Cell-3上发送。
终端在三个LTE-U Cell中的每个Cell检测PDCCH,根据检测到的PDCCH在本小区检测PDSCH,所述三个LTE-U Cell中的每个小区的PDCCH用于调度本小区上传输的资源;或者,终端在所述虚拟小区以外的小区检测PDCCH,根据检测到的PDCCH在三个LTE-U Cell中的一个或多个小区检测PDSCH,所述虚拟小区以外的小区的PDCCH用于调度所述虚拟小区中的一个或多个小区上传输的资源。
终端根据为虚拟小区配置的功率控制参数,对虚拟小区进行功率测量,并根据功率测量结果对虚拟小区进行功率余量上报;或者,终端根据为虚拟小区中的三个LTE-U Cell分别配置的功率控制参数,分别对三个LTE-U Cell进行功率测量,并根据功率测量结果分别对三个LTE-U Cell进行功率余量上报。
若终端具有足够大的工作带宽,则终端可在虚拟小区所包含的三个LTE-U Cell上同时进行测量;若终端仅能工作在一个LTE-U Cell上,即每个时间段只能对一个LTE-U Cell进行测量,则终端在虚拟小区所包含的三个LTE-U Cell间通过时分复用的方式进行测量。终端通过测量得到测量结果后,针对虚拟小区中的每个LTE-U Cell上报测量结果。
网络设备可以根据不同LTE-U Cell上的测量结果或干扰情况的变化,通过RRC信令动态改变虚拟小区的配置信息,例如删除LTE-U Cell-1,添加LTE-U Cell-4等。
当为终端配置的虚拟小区被去激活或DRX off时,终端停止在三个LTE-U Cell间通过时分复用的方式进行数据传输;在去激活时,终端的测量配置可通过网络侧重新显示配置。
当为终端配置的虚拟小区再次被激活或DRX on时,终端恢复在三个LTE-U Cell间通过时分复用的方式进行数据传输。
本申请实施例二:TDD载波构造虚拟小区的情形
网络设备为终端配置载波聚合配置信息,分别为1个主小区的配置信息和一个虚拟小区的配置信息,其中,主小区为TDD小区、或FDD小区,虚拟小区包含三个TDD小区,分别命名为LTE-U Cell-1、LTE-U Cell-2、LTE-U Cell-3,工作在非授权频段上。
其中,网络设备可以配置虚拟小区仅作下行传输,也可以配置所述虚拟小区做上下行 传输。
(1)网络设备配置虚拟小区仅作下行传输时,数据传输情况具体如下:
终端为主小区和辅小区分别维护一个HARQ实体,上行工作在主小区上,下行工作在主小区和虚拟小区上;在虚拟小区上终端在同一时刻只能通过LTE-U Cell-1、LTE-U Cell-2、LTE-U Cell-3中一个小区进行下行业务接收处理。
网络设备可以通过RRC信令同时为终端配置在虚拟小区上的工作模式,即时分复用配置信息,即终端通过三个LTE-U Cell中哪一个小区进行业务接收处理,例如子帧0、1、2在LTE-U Cell-1接收下行数据,子帧3、4、5在LTE-U Cell-2接收下行数据,子帧6、7、8在LTE-U Cell-3上接收下行数据,子帧9不需要接收下行数据。其中,时分复用配置信息可以由网络设备通过RRC信令配置,也可以由网络设备根据不同的LTE-U Cell的干扰情况,向终端发送小区切换指示信息,以指示所述终端从当前工作的源小区切换到所述小区切换指示信息所指示的目标小区进行数据传输,所述源小区和所述目标小区均为所述N个小区中的小区。
终端根据网络设备配置的时分复用配置信息在各个LTE-U Cell上接收下行数据,下行数据的调度信令可以来自相同的LTE-U Cell或PCell;
终端根据为虚拟小区配置的上下行定时关系信息,在3个LTE-U Cell间通过时分复用的方式并按照上下行定时关系信息进行数据传输。
终端向网络设备反馈在3个LTE-U Cell中的一个小区,例如LTE-U Cell-1的数据接收情况,网络设备根据数据接收情况向终端重传数据,重传的数据可以在LTE-U Cell-1上发送,也可以在LTE-U Cell-2或LTE-U Cell-3上发送。
终端在三个LTE-U Cell中的每个Cell检测PDCCH,根据检测到的PDCCH在本小区检测PDSCH,所述三个LTE-U Cell中的每个小区的PDCCH用于调度本小区上传输的资源;或者
终端在所述虚拟小区以外的小区检测PDCCH,根据检测到的PDCCH在三个LTE-U Cell中的一个或多个小区检测PDSCH,所述虚拟小区以外的小区的PDCCH用于调度所述虚拟小区中的一个或多个小区上传输的资源。
终端根据为虚拟小区配置的功率控制参数,对虚拟小区进行功率测量,并根据功率测量结果对虚拟小区进行功率余量上报;或者
终端根据为虚拟小区中的三个LTE-U Cell分别配置的功率控制参数,分别对三个LTE-U Cell进行功率测量,并根据功率测量结果分别对三个LTE-U Cell进行功率余量上报。
若终端具有足够大的工作带宽,则终端可在虚拟小区所包含的三个LTE-U Cell上同时进行测量;若终端仅能工作在一个LTE-U Cell上,即每个时间段只能对一个LTE-U Cell进行测量,则终端在虚拟小区所包含的三个LTE-U Cell间通过时分复用的方式进行测量。 终端通过测量得到测量结果后,针对虚拟小区中的每个LTE-U Cell上报测量结果。
网络设备可以根据不同LTE-U Cell上的测量结果或干扰情况的变化,通过RRC信令动态改变虚拟小区的配置信息,例如删除LTE-U Cell-1,添加LTE-U Cell-4等。
当为终端配置的虚拟小区被去激活或DRX off时,终端停止在三个LTE-U Cell间通过时分复用的方式进行数据传输;在去激活时,终端的测量配置可通过网络侧重新显示配置。
当为终端配置的虚拟小区再次被激活或DRX on时,终端恢复在三个LTE-U Cell间通过时分复用的方式进行数据传输。
(2)网络设备配置虚拟小区作上下行传输时,数据传输情况具体如下:
终端为主小区和辅小区分别维护一个HARQ实体,上下行工作在主小区和/或虚拟小区上;在虚拟小区上终端在同一时刻只能通过LTE-U Cell-1、LTE-U Cell-2、LTE-U Cell-3中一个小区进行数据传输。
网络设备可以通过RRC信令同时为终端配置在虚拟小区上的工作模式,即时分复用配置信息,即终端通过三个LTE-U Cell中哪一个小区进行数据传输,例如子帧0、1、2在LTE-U Cell-1进行数据传输,子帧3、4、5在LTE-U Cell-2进行数据传输,子帧6、7、8在LTE-U Cell-3进行数据传输,子帧9不需要进行数据传输。其中,时分复用配置信息可以由网络设备通过RRC信令配置,也可以由网络设备根据不同的LTE-U Cell的干扰情况,向终端发送小区切换指示信息,以指示所述终端从当前工作的源小区切换到所述小区切换指示信息所指示的目标小区进行数据传输,所述源小区和所述目标小区均为所述N个小区中的小区。
终端在虚拟小区上仅维护一个定时关系信息,即在LTE-U Cell-1上的上下行定时关系信息同样适用于LTE-U Cell-2、3。终端根据虚拟小区的上下行定时关系信息,在3个LTE-U Cell间通过时分复用的方式并按照上下行定时关系信息进行数据传输。
终端向网络设备反馈在3个LTE-U Cell中的一个小区,例如LTE-U Cell-1的数据接收情况,网络设备根据数据接收情况向终端重传数据,重传的数据可以在LTE-U Cell-1上发送,也可以在LTE-U Cell-2或LTE-U Cell-3上发送。
终端在三个LTE-U Cell中的每个Cell检测PDCCH,根据检测到的PDCCH在本小区检测PDSCH,所述三个LTE-U Cell中的每个小区的PDCCH用于调度本小区上传输的资源;或者
终端在所述虚拟小区以外的小区检测PDCCH,根据检测到的PDCCH在三个LTE-U Cell中的一个或多个小区检测PDSCH,所述虚拟小区以外的小区的PDCCH用于调度所述虚拟小区中的一个或多个小区上传输的资源。
终端根据为虚拟小区配置的功率控制参数,对虚拟小区进行功率测量,并根据功率测量结果对虚拟小区进行功率余量上报;或者
终端根据为虚拟小区中的三个LTE-U Cell分别配置的功率控制参数,分别对三个LTE-U Cell进行功率测量,并根据功率测量结果分别对三个LTE-U Cell进行功率余量上报。
若终端具有足够大的工作带宽,则终端可在虚拟小区所包含的三个LTE-U Cell上同时进行测量;若终端仅能工作在一个LTE-U Cell上,即每个时间段只能对一个LTE-U Cell进行测量,则终端在虚拟小区所包含的三个LTE-U Cell间通过时分复用的方式进行测量。终端通过测量得到测量结果后,针对虚拟小区中的每个LTE-U Cell上报测量结果。
网络设备可以根据不同LTE-U Cell上的测量结果或干扰情况的变化,通过RRC信令动态改变虚拟小区的配置信息,例如删除LTE-U Cell-1,添加LTE-U Cell-4等。
当为终端配置的虚拟小区被去激活或DRX off时,终端停止在三个LTE-U Cell间通过时分复用的方式进行数据传输;在去激活时,终端的测量配置可通过网络侧重新显示配置。
当为终端配置的虚拟小区再次被激活或DRX on时,终端恢复在三个LTE-U Cell间通过时分复用的方式进行数据传输。
针对上述方法流程,本申请实施例还提供一种终端,该终端的具体内容可以参照上述方法实施,在此不再赘述。
图7为本申请实施例提供的一种终端示意图,该终端包括:
获取模块701,用于获取虚拟小区的配置信息,所述虚拟小区中包含N个小区,N≥1;
传输模块702,用于在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,所述传输模块702还用于:
接收时分复用配置信息,所述时分复用配置信息指示出所述终端在所述N个小区进行数据传输时各小区所占用的时间段,其中,每个时间段上仅指示所述终端在所述N个小区中的一个小区上进行数据传输。
较佳地,所述传输模块702还用于:
接收网络设备发送的小区切换指示信息;
根据所述小区切换指示信息,从当前工作的源小区切换到所述小区切换指示信息所指示的目标小区进行数据传输,所述源小区和所述目标小区均为所述N个小区中的小区。
较佳地,所述传输模块702还用于:
在所述虚拟小区上维护一套上下行定时关系信息;在所述N个小区间通过时分复用的方式并按照所述上下行定时关系信息进行数据传输。
较佳地,所述传输模块702还用于:
向网络设备反馈在所述N个小区中的数据接收情况;
接收所述网络设备根据所述数据接收情况重传的数据,其中,所述重传的数据在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,还包括:
检测模块703,用于在所述N个小区中的每个小区检测PDCCH,根据检测到的PDCCH在本小区检测PDSCH,所述N个小区中的每个小区的PDCCH用于调度本小区上传输的资源;或者
在所述虚拟小区以外的小区检测PDCCH,根据检测到的PDCCH在所述N个小区中的一个或多个小区检测PDSCH,所述虚拟小区以外的小区的PDCCH用于调度所述虚拟小区中的一个或多个小区上传输的资源。
较佳地,还包括:
测量模块704,用于根据为所述虚拟小区配置的功率控制参数,对所述虚拟小区进行功率测量,并根据功率测量结果对所述虚拟小区进行功率余量上报;或者
根据为所述虚拟小区中的N个小区分别配置的功率控制参数,分别对所述N个小区进行功率测量,并根据功率测量结果分别对所述N个小区进行功率余量上报。
较佳地,还包括:
测量模块704,用于在所述虚拟小区所包含的N个小区上同时进行测量;或者
在所述虚拟小区所包含的N个小区间通过时分复用的方式进行测量,其中,每个时间段上仅对所述N个小区中的一个小区进行测量。
较佳地,所述传输模块702还用于:
得到测量结果后,针对所述N个小区中的每个小区上报测量结果。
较佳地,所述传输模块702还用于:
当为所述终端配置的虚拟小区被去激活或DRX off时,停止在所述N个小区间通过时分复用的方式进行数据传输;
当为所述终端配置的虚拟小区再次被激活或DRX on时,恢复在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,所述虚拟小区的数量为一个或多个;
当所述虚拟小区的数量为多个时,一个小区被允许配置到多个虚拟小区中,且在所述多个虚拟小区中的时分复用配置保持一致。
较佳地,所述获取模块701还用于:
获取为所述终端配置的载波聚合配置信息,所述载波聚合配置信息中包括主小区配置信息和辅小区配置信息,所述辅小区配置信息中至少包括一个虚拟小区配置信息,所述虚拟小区包括N个工作在非授权频段上的小区。
针对上述方法流程,本申请实施例还提供一种网络设备,该网络设备的具体内容可以参照上述方法实施,在此不再赘述。
图8为本申请实施例提供的一种网络设备示意图,该网络设备包括:
配置模块801,用于为终端配置虚拟小区,所述虚拟小区中包含N个小区,N≥1;
传输模块802,用于在所述虚拟小区所包含的N个小区间采用时分复用的方式与所述终端进行数据传输。
较佳地,所述传输模块802还用于:
向所述终端发送时分复用配置信息,所述时分复用配置信息指示出所述终端在所述N个小区进行数据传输时各小区所占用的时间段,其中,每个时间段上仅指示所述终端在所述N个小区中的一个小区上进行数据传输。
较佳地,所述传输模块802还用于:
向所述终端发送小区切换指示信息,以使所述终端根据所述小区切换指示信息,从当前工作的源小区切换到所述小区切换指示信息所指示的目标小区进行数据传输,所述源小区和所述目标小区均为所述N个小区中的小区。
较佳地,所述传输模块802还用于:
在所述N个小区间通过时分复用的方式并按照所述终端在所述虚拟小区上维护的一套上下行定时关系信息与所述终端进行数据传输。
较佳地,所述传输模块802还用于:
接收所述终端反馈的在所述N个小区中的数据接收情况;
根据所述数据接收情况向所述终端重传数据,其中,所述重传的数据在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,所述传输模块802还用于:
接收所述终端根据所述虚拟小区的功率控制参数上报的功率余量,并根据所述功率余量对所述虚拟小区中的每个小区进行功率控制;或者
接收所述终端根据所述虚拟小区中的每个小区的功率控制参数上报的每个小区的功率余量,并根据每个小区的功率余量分别对每个小区进行功率控制。
较佳地,所述传输模块802还用于:
接收所述终端针对所述N个小区中的每个小区上报的测量结果;
其中,所述测量结果是所述终端在所述虚拟小区所包含的N个小区上同时进行测量得到的;或者
所述测量结果是所述终端在所述虚拟小区所包含的N个小区间通过时分复用的方式进行测量得到的。
较佳地,所述传输模块802还用于:
向所述终端发送所述虚拟小区被去激活或DRX off指令,以指示所述终端停止在所述N个小区间通过时分复用的方式进行数据传输;
向所述终端发送虚拟小区再次被激活或DRX on指令,以指示所述终端恢复在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,所述虚拟小区的数量为一个或多个;
当所述虚拟小区的数量为多个时,一个小区被允许配置到多个虚拟小区中,且在所述多个虚拟小区中的时分复用配置保持一致。
所述配置模块801还用于:
为所述终端配置载波聚合配置信息,所述载波聚合配置信息中包括主小区配置信息和辅小区配置信息,所述辅小区配置信息中至少包括一个虚拟小区配置信息,所述虚拟小区包括N个工作在非授权频段上的小区。
图9为本申请实施例提供的另一种终端示意图,该终端包括:收发机901,以及与所述收发机901连接的至少一个处理器902,其中:
处理器902,用于读取存储器903中的程序,执行下列过程:
获取虚拟小区的配置信息,所述虚拟小区中包含N个小区,N≥1;控制所述收发机901在所述N个小区间通过时分复用的方式进行数据传输。
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902代表的一个或多个处理器和存储器903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901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904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902负责管理总线架构和通常的处理,存储器903可以存储处理器902在执行操作时所使用的数据。
较佳地,所述收发机901还用于:
接收时分复用配置信息,所述时分复用配置信息指示出所述终端在所述N个小区进行数据传输时各小区所占用的时间段,其中,每个时间段上仅指示所述终端在所述N个小区中的一个小区上进行数据传输。
较佳地,所述收发机901还用于:接收网络设备发送的小区切换指示信息;
所述处理器902还用于:根据所述小区切换指示信息,从当前工作的源小区切换到所述小区切换指示信息所指示的目标小区进行数据传输,所述源小区和所述目标小区均为所述N个小区中的小区。
较佳地,所述处理器902还用于:
在所述虚拟小区上维护一套上下行定时关系信息;控制所述收发机901在所述N个小区间通过时分复用的方式并按照所述上下行定时关系信息进行数据传输。
较佳地,所述处理器902还用于:控制所述收发机901向网络设备反馈在所述N个小 区中的数据接收情况;
所述收发机901还用于:接收所述网络设备根据所述数据接收情况重传的数据,其中,所述重传的数据在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,所述处理器902还用于:
在所述N个小区中的每个小区检测PDCCH,根据检测到的PDCCH在本小区检测PDSCH,所述N个小区中的每个小区的PDCCH用于调度本小区上传输的资源;或者
在所述虚拟小区以外的小区检测PDCCH,根据检测到的PDCCH在所述N个小区中的一个或多个小区检测PDSCH,所述虚拟小区以外的小区的PDCCH用于调度所述虚拟小区中的一个或多个小区上传输的资源。
较佳地,所述处理器902还用于:
根据为所述虚拟小区配置的功率控制参数,对所述虚拟小区进行功率测量,并根据功率测量结果对所述虚拟小区进行功率余量上报;或者
根据为所述虚拟小区中的N个小区分别配置的功率控制参数,分别对所述N个小区进行功率测量,并根据功率测量结果分别对所述N个小区进行功率余量上报。
较佳地,所述处理器902还用于:
在所述虚拟小区所包含的N个小区上同时进行测量;或者
在所述虚拟小区所包含的N个小区间通过时分复用的方式进行测量,其中,每个时间段上仅对所述N个小区中的一个小区进行测量。
较佳地,所述处理器902还用于:
得到测量结果后,针对所述N个小区中的每个小区控制所述收发机901上报测量结果。
较佳地,所述处理器902还用于:
当为所述终端配置的虚拟小区被去激活或DRX off时,控制所述收发机901停止在所述N个小区间通过时分复用的方式进行数据传输;
当为所述终端配置的虚拟小区再次被激活或DRX on时,控制所述收发机901恢复在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,所述虚拟小区的数量为一个或多个;
当所述虚拟小区的数量为多个时,一个小区被允许配置到多个虚拟小区中,且在所述多个虚拟小区中的时分复用配置保持一致。
基于上述任一实施例,所述处理器902还用于:
获取为所述终端配置的载波聚合配置信息,所述载波聚合配置信息中包括主小区配置信息和辅小区配置信息,所述辅小区配置信息中至少包括一个虚拟小区配置信息,所述虚拟小区包括N个工作在非授权频段上的小区。
图10为本申请实施例提供的另一种网络设备示意图,该网络设备包括:收发机1001, 以及与所述收发机1001连接的至少一个处理器1002,其中:
所述处理器1002,用于读取存储器1003中的程序,执行下列过程:
为终端配置虚拟小区,所述虚拟小区中包含N个小区,N≥1;控制所述收发机1001在所述虚拟小区所包含的N个小区间采用时分复用的方式与所述终端进行数据传输。
其中,在图10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1002代表的一个或多个处理器和存储器1003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1001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1002负责管理总线架构和通常的处理,存储器1003可以存储处理器1002在执行操作时所使用的数据。
较佳地,所述处理器1002还用于:
控制所述收发机1001向所述终端发送时分复用配置信息,所述时分复用配置信息指示出所述终端在所述N个小区进行数据传输时各小区所占用的时间段,其中,每个时间段上仅指示所述终端在所述N个小区中的一个小区上进行数据传输。
较佳地,所述处理器1002还用于:
控制所述收发机1001向所述终端发送小区切换指示信息,以使所述终端根据所述小区切换指示信息,从当前工作的源小区切换到所述小区切换指示信息所指示的目标小区进行数据传输,所述源小区和所述目标小区均为所述N个小区中的小区。
较佳地,所述处理器1002还用于:
控制所述收发机1001在所述N个小区间通过时分复用的方式并按照所述终端在所述虚拟小区上维护的一套上下行定时关系信息与所述终端进行数据传输。
较佳地,所述收发机1001还用于:接收所述终端反馈的在所述N个小区中的数据接收情况;
所述处理器1002还用于:根据所述数据接收情况控制所述收发机1001向所述终端重传数据,其中,所述重传的数据在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,所述收发机1001还用于:接收所述终端根据所述虚拟小区的功率控制参数上报的功率余量;所述处理器1002还用于:根据所述功率余量对所述虚拟小区中的每个小区进行功率控制;
或者
所述收发机1001还用于:接收所述终端根据所述虚拟小区中的每个小区的功率控制参数上报的每个小区的功率余量;所述处理器1002还用于:根据每个小区的功率余量分别对每个小区进行功率控制。
较佳地,所述收发机1001还用于:
接收所述终端针对所述N个小区中的每个小区上报的测量结果;
其中,所述测量结果是所述终端在所述虚拟小区所包含的N个小区上同时进行测量得到的;或者
所述测量结果是所述终端在所述虚拟小区所包含的N个小区间通过时分复用的方式进行测量得到的。
较佳地,所述处理器1002还用于:
控制所述收发机1001向所述终端发送所述虚拟小区被去激活或DRX off指令,以指示所述终端停止在所述N个小区间通过时分复用的方式进行数据传输;
控制所述收发机1001向所述终端发送虚拟小区再次被激活或DRX on指令,以指示所述终端恢复在所述N个小区间通过时分复用的方式进行数据传输。
较佳地,所述虚拟小区的数量为一个或多个;
当所述虚拟小区的数量为多个时,一个小区被允许配置到多个虚拟小区中,且在所述多个虚拟小区中的时分复用配置保持一致。
基于上述任一实施例,所述处理器1002还用于:
为所述终端配置载波聚合配置信息,所述载波聚合配置信息中包括主小区配置信息和辅小区配置信息,所述辅小区配置信息中至少包括一个虚拟小区配置信息,所述虚拟小区包括N个工作在非授权频段上的小区。
从上述内容可以看出:本申请实施例通过终端获取为所述终端配置虚拟小区的配置信息,所述虚拟小区中包含N个小区,N≥1;终端在所述N个小区间通过时分复用的方式进行数据传输;本申请实施例实现了灵活调整UE业务传输载波,躲避不同频域上干扰的同时,也不影响UE业务传输,用以提高系统传输效率。
本领域内的技术人员应明白,本申请的实施例可提供为方法、或计算机程序产品。因此,本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的 装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本申请的优选实施例,但本领域内的技术人员一旦得知了基本创造性概念,则可对这些实施例作出另外的变更和修改。所以,所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。
显然,本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样,倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。

Claims (42)

  1. 一种数据传输方法,其特征在于,包括:
    终端获取虚拟小区的配置信息,所述虚拟小区中包含N个小区,N≥1;
    所述终端在所述N个小区间通过时分复用的方式进行数据传输。
  2. 如权利要求1所述的方法,其特征在于,该方法还包括:
    所述终端接收时分复用配置信息,所述时分复用配置信息指示出所述终端在所述N个小区进行数据传输时各小区所占用的时间段,其中,每个时间段上仅指示所述终端在所述N个小区中的一个小区上进行数据传输;
    所述终端在所述N个小区间通过时分复用的方式进行数据传输,包括:
    所述终端根据所述时分复用配置信息,在所述N个小区间通过时分复用的方式进行数据传输。
  3. 如权利要求1所述的方法,其特征在于,所述终端在所述N个小区间通过时分复用的方式进行数据传输,包括:
    所述终端接收网络设备发送的小区切换指示信息;
    所述终端根据所述小区切换指示信息,从当前工作的源小区切换到所述小区切换指示信息所指示的目标小区进行数据传输,所述源小区和所述目标小区均为所述N个小区中的小区。
  4. 如权利要求1所述的方法,其特征在于,该方法还包括:
    所述终端在所述虚拟小区上维护一套上下行定时关系信息;
    所述在所述N个小区间通过时分复用的方式进行数据传输,包括:
    所述终端在所述N个小区间通过时分复用的方式并按照所述上下行定时关系信息进行数据传输。
  5. 如权利要求1所述的方法,其特征在于,该方法还包括:
    所述终端向网络设备反馈在所述N个小区中的数据接收情况;
    所述终端接收所述网络设备根据所述数据接收情况重传的数据,其中,所述重传的数据在所述N个小区间通过时分复用的方式进行数据传输。
  6. 如权利要求1所述的方法,其特征在于,还包括:
    所述终端在所述N个小区中的每个小区检测物理下行控制信道PDCCH,根据检测到的PDCCH在本小区检测物理下行共享信道PDSCH,所述N个小区中的每个小区的PDCCH用于调度本小区上传输的资源;或者
    所述终端在所述虚拟小区以外的小区检测PDCCH,根据检测到的PDCCH在所述N个小区中的一个或多个小区检测PDSCH,所述虚拟小区以外的小区的PDCCH用于调度所述虚拟小区中的一个或多个小区上传输的资源。
  7. 如权利要求1所述的方法,其特征在于,该方法还包括:
    所述终端根据为所述虚拟小区配置的功率控制参数,对所述虚拟小区进行功率测量,并根据功率测量结果对所述虚拟小区进行功率余量上报;或者
    所述终端根据为所述虚拟小区中的N个小区分别配置的功率控制参数,分别对所述N个小区进行功率测量,并根据功率测量结果分别对所述N个小区进行功率余量上报。
  8. 如权利要求1所述的方法,其特征在于,该方法还包括:
    所述终端在所述虚拟小区所包含的N个小区上同时进行测量;或者
    所述终端在所述虚拟小区所包含的N个小区间通过时分复用的方式进行测量,其中,每个时间段上仅对所述N个小区中的一个小区进行测量。
  9. 如权利要求8所述的方法,其特征在于,该方法还包括:
    所述终端通过测量得到测量结果后,针对所述N个小区中的每个小区上报测量结果。
  10. 如权利要求1所述的方法,其特征在于,该方法还包括:
    当为所述终端配置的虚拟小区被去激活或非连续接收停止DRX off时,所述终端停止在所述N个小区间通过时分复用的方式进行数据传输;
    当为所述终端配置的虚拟小区再次被激活或非连续接收开启DRX on时,所述终端恢复在所述N个小区间通过时分复用的方式进行数据传输。
  11. 如权利要求1至10中任一项所述的方法,其特征在于,所述虚拟小区的数量为一个或多个;
    当所述虚拟小区的数量为多个时,一个小区被允许配置到多个虚拟小区中,且在所述多个虚拟小区中的时分复用配置保持一致。
  12. 如权利要求1至10中任一项所述的方法,其特征在于,所述终端获取虚拟小区的配置信息,所述虚拟小区中包含N个小区,包括:
    所述终端获取为所述终端配置的载波聚合配置信息,所述载波聚合配置信息中包括主小区配置信息和辅小区配置信息,所述辅小区配置信息中至少包括一个虚拟小区配置信息,所述虚拟小区包括N个工作在非授权频段上的小区。
  13. 一种数据传输方法,其特征在于,包括:
    网络设备为终端配置虚拟小区,所述虚拟小区中包含N个小区,N≥1;
    所述网络设备在所述虚拟小区所包含的N个小区间采用时分复用的方式与所述终端进行数据传输。
  14. 如权利要求13所述的方法,其特征在于,该方法还包括:
    所述网络设备向所述终端发送时分复用配置信息,所述时分复用配置信息指示出所述终端在所述N个小区进行数据传输时各小区所占用的时间段,其中,每个时间段上仅指示所述终端在所述N个小区中的一个小区上进行数据传输;
    所述网络设备在所述虚拟小区所包含的N个小区间采用时分复用的方式与所述终端进行数据传输,包括:
    所述网络设备根据所述时分复用配置信息,在所述N个小区间通过时分复用的方式与所述终端进行数据传输。
  15. 如权利要求13所述的方法,其特征在于,所述网络设备在所述虚拟小区所包含的N个小区间采用时分复用的方式与所述终端进行数据传输,包括:
    所述网络设备向所述终端发送小区切换指示信息,以使所述终端根据所述小区切换指示信息,从当前工作的源小区切换到所述小区切换指示信息所指示的目标小区进行数据传输,所述源小区和所述目标小区均为所述N个小区中的小区。
  16. 如权利要求13所述的方法,其特征在于,所述网络设备在所述虚拟小区所包含的N个小区间采用时分复用的方式与所述终端进行数据传输,包括:
    所述网络设备在所述N个小区间通过时分复用的方式并按照所述网络设备在所述虚拟小区上维护的一套上下行定时关系信息与所述终端进行数据传输。
  17. 如权利要求13所述的方法,其特征在于,该方法还包括:
    所述网络设备接收所述终端反馈的在所述N个小区中的数据接收情况;
    所述网络设备根据所述数据接收情况向所述终端重传数据,其中,所述重传的数据在所述N个小区间通过时分复用的方式进行数据传输。
  18. 如权利要求13所述的方法,其特征在于,该方法还包括:
    所述网络设备接收所述终端根据所述虚拟小区的功率控制参数上报的功率余量,并根据所述功率余量对所述虚拟小区中的每个小区进行功率控制;或者
    所述网络设备接收所述终端根据所述虚拟小区中的每个小区的功率控制参数上报的每个小区的功率余量,并根据每个小区的功率余量分别对每个小区进行功率控制。
  19. 如权利要求13所述的方法,其特征在于,还包括:
    所述网络设备向所述终端发送所述虚拟小区被去激活或DRX off指令,以指示所述终端停止在所述N个小区间通过时分复用的方式进行数据传输;
    所述网络设备向所述终端发送虚拟小区再次被激活或DRX on指令,以指示所述终端恢复在所述N个小区间通过时分复用的方式进行数据传输。
  20. 如权利要求13至19中任一项所述的方法,其特征在于,所述虚拟小区的数量为一个或多个;
    当所述虚拟小区的数量为多个时,一个小区被允许配置到多个虚拟小区中,且在所述多个虚拟小区中的时分复用配置保持一致。
  21. 如权利要求13至19中任一项所述的方法,其特征在于,所述网络设备为所述终端配置虚拟小区的配置信息,包括:
    所述网络设备为所述终端配置载波聚合配置信息,所述载波聚合配置信息中包括主小区配置信息和辅小区配置信息,所述辅小区配置信息中至少包括一个虚拟小区配置信息,所述虚拟小区包括N个工作在非授权频段上的小区。
  22. 一种终端,其特征在于,包括:
    获取模块,用于获取虚拟小区的配置信息,所述虚拟小区中包含N个小区,N≥1;
    传输模块,用于在所述N个小区间通过时分复用的方式进行数据传输。
  23. 如权利要求22所述的终端,其特征在于,所述传输模块还用于:
    接收时分复用配置信息,所述时分复用配置信息指示出所述终端在所述N个小区进行数据传输时各小区所占用的时间段,其中,每个时间段上仅指示所述终端在所述N个小区中的一个小区上进行数据传输;
    根据所述时分复用配置信息,在所述N个小区间通过时分复用的方式进行数据传输。
  24. 如权利要求22所述的终端,其特征在于,所述传输模块还用于:
    接收网络设备发送的小区切换指示信息;
    根据所述小区切换指示信息,从当前工作的源小区切换到所述小区切换指示信息所指示的目标小区进行数据传输,所述源小区和所述目标小区均为所述N个小区中的小区。
  25. 如权利要求22所述的终端,其特征在于,所述传输模块还用于:
    在所述虚拟小区上维护一套上下行定时关系信息;在所述N个小区间通过时分复用的方式并按照所述上下行定时关系信息进行数据传输。
  26. 如权利要求22所述的终端,其特征在于,所述传输模块还用于:
    向网络设备反馈在所述N个小区中的数据接收情况;
    接收所述网络设备根据所述数据接收情况重传的数据,其中,所述重传的数据在所述N个小区间通过时分复用的方式进行数据传输。
  27. 如权利要求22所述的终端,其特征在于,还包括:
    检测模块,用于在所述N个小区中的每个小区检测PDCCH,根据检测到的PDCCH在本小区检测PDSCH,所述N个小区中的每个小区的PDCCH用于调度本小区上传输的资源;或者
    在所述虚拟小区以外的小区检测PDCCH,根据检测到的PDCCH在所述N个小区中的一个或多个小区检测PDSCH,所述虚拟小区以外的小区的PDCCH用于调度所述虚拟小区中的一个或多个小区上传输的资源。
  28. 如权利要求22所述的终端,其特征在于,还包括:
    测量模块,用于根据为所述虚拟小区配置的功率控制参数,对所述虚拟小区进行功率测量,并根据功率测量结果对所述虚拟小区进行功率余量上报;或者
    根据为所述虚拟小区中的N个小区分别配置的功率控制参数,分别对所述N个小区进 行功率测量,并根据功率测量结果分别对所述N个小区进行功率余量上报。
  29. 如权利要求22所述的终端,其特征在于,还包括:
    测量模块,用于在所述虚拟小区所包含的N个小区上同时进行测量;或者
    在所述虚拟小区所包含的N个小区间通过时分复用的方式进行测量,其中,每个时间段上仅对所述N个小区中的一个小区进行测量。
  30. 如权利要求29所述的终端,其特征在于,所述传输模块还用于:
    针对所述N个小区中的每个小区上报测量结果。
  31. 如权利要求22所述的终端,其特征在于,所述传输模块还用于:
    当为所述终端配置的虚拟小区被去激活或DRX off时,停止在所述N个小区间通过时分复用的方式进行数据传输;
    当为所述终端配置的虚拟小区再次被激活或DRX on时,恢复在所述N个小区间通过时分复用的方式进行数据传输。
  32. 如权利要求22至31中任一项所述的终端,其特征在于,所述虚拟小区的数量为一个或多个;
    当所述虚拟小区的数量为多个时,一个小区被允许配置到多个虚拟小区中,且在所述多个虚拟小区中的时分复用配置保持一致。
  33. 如权利要求22至31中任一项所述的终端,其特征在于,所述获取模块还用于:
    获取为所述终端配置的载波聚合配置信息,所述载波聚合配置信息中包括主小区配置信息和辅小区配置信息,所述辅小区配置信息中至少包括一个虚拟小区配置信息,所述虚拟小区包括N个工作在非授权频段上的小区。
  34. 一种网络设备,其特征在于,包括:
    配置模块,用于为终端配置虚拟小区,所述虚拟小区中包含N个小区,N≥1;
    传输模块,用于在所述虚拟小区所包含的N个小区间采用时分复用的方式与所述终端进行数据传输。
  35. 如权利要求34所述的网络设备,其特征在于,所述传输模块还用于:
    向所述终端发送时分复用配置信息,所述时分复用配置信息指示出所述终端在所述N个小区进行数据传输时各小区所占用的时间段,其中,每个时间段上仅指示所述终端在所述N个小区中的一个小区上进行数据传输;
    根据所述时分复用配置信息,在所述N个小区间通过时分复用的方式与所述终端进行数据传输。
  36. 如权利要求34所述的网络设备,其特征在于,所述传输模块还用于:
    向所述终端发送小区切换指示信息,以使所述终端根据所述小区切换指示信息,从当前工作的源小区切换到所述小区切换指示信息所指示的目标小区进行数据传输,所述源小 区和所述目标小区均为所述N个小区中的小区。
  37. 如权利要求34所述的网络设备,其特征在于,所述传输模块还用于:
    在所述N个小区间通过时分复用的方式并按照所述终端在所述虚拟小区上维护的一套上下行定时关系信息与所述终端进行数据传输。
  38. 如权利要求34所述的网络设备,其特征在于,所述传输模块还用于:
    接收所述终端反馈的在所述N个小区中的数据接收情况;
    根据所述数据接收情况向所述终端重传数据,其中,所述重传的数据在所述N个小区间通过时分复用的方式进行数据传输。
  39. 如权利要求34所述的网络设备,其特征在于,所述传输模块还用于:
    接收所述终端根据所述虚拟小区的功率控制参数上报的功率余量,并根据所述功率余量对所述虚拟小区中的每个小区进行功率控制;或者
    接收所述终端根据所述虚拟小区中的每个小区的功率控制参数上报的每个小区的功率余量,并根据每个小区的功率余量分别对每个小区进行功率控制。
  40. 如权利要求34所述的网络设备,其特征在于,所述传输模块还用于:
    向所述终端发送所述虚拟小区被去激活或DRX off指令,以指示所述终端停止在所述N个小区间通过时分复用的方式进行数据传输;
    向所述终端发送虚拟小区再次被激活或DRX on指令,以指示所述终端恢复在所述N个小区间通过时分复用的方式进行数据传输。
  41. 如权利要求34至40中任一项所述的网络设备,其特征在于,所述虚拟小区的数量为一个或多个;
    当所述虚拟小区的数量为多个时,一个小区被允许配置到多个虚拟小区中,且在所述多个虚拟小区中的时分复用配置保持一致。
  42. 如权利要求34至40中任一项所述的网络设备,其特征在于,所述配置模块还用于:
    为所述终端配置载波聚合配置信息,所述载波聚合配置信息中包括主小区配置信息和辅小区配置信息,所述辅小区配置信息中至少包括一个虚拟小区配置信息,所述虚拟小区包括N个工作在非授权频段上的小区。
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EP3206325A1 (en) 2017-08-16
CN105490789A (zh) 2016-04-13
US20170311339A1 (en) 2017-10-26
US10660113B2 (en) 2020-05-19
EP3206325A4 (en) 2018-02-14
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