WO2018028325A1 - 一种数据通信方法及装置 - Google Patents

一种数据通信方法及装置 Download PDF

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Publication number
WO2018028325A1
WO2018028325A1 PCT/CN2017/090573 CN2017090573W WO2018028325A1 WO 2018028325 A1 WO2018028325 A1 WO 2018028325A1 CN 2017090573 W CN2017090573 W CN 2017090573W WO 2018028325 A1 WO2018028325 A1 WO 2018028325A1
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information
subframe
spectrum
scheduling grant
uplink scheduling
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PCT/CN2017/090573
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English (en)
French (fr)
Inventor
朱广勇
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深圳市金立通信设备有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present invention relates to the field of mobile communication network technologies, and in particular, to a data communication method and apparatus.
  • LAA Licensed-Assisted Access to Unlicensed Spectrum
  • LTE Long Term Evolution
  • LBT listen before talk
  • the uplink and downlink subframe distribution in the unlicensed frequency band in the LAA system is determined based on the service requirement and the result of the LBT, and the uplink and downlink subframe distribution in the LAA system is also related to the LTE. The system is different.
  • the uplink data transmission is performed by using the uplink grant information transmitted on the downlink control channel, that is, the base station sends the uplink grant information on the downlink control channel of the downlink subframe to schedule the user equipment (User Equipment, UE).
  • the uplink data is transmitted, and then the UE performs uplink data transmission on a subsequent uplink subframe.
  • the number of downlink subframes is generally larger than the number of uplink subframes. To distribute the signaling load more uniformly, a downlink subframe is generally used to schedule an uplink subframe.
  • the uplink and downlink subframes are changed. For example, when there are many uplink services, the number of uplink subframes may be greater than the number of downlink subframes. In this case, one of the LTE systems cannot be used.
  • the downlink subframe schedules an uplink subframe scheduling mode. Therefore, through the current 3GPP discussion, it is determined that the multi-subframe scheduling is used in the LAA system to perform uplink scheduling, that is, one downlink subframe schedules multiple uplink subframes. How to make multi-subframe adjustment in the LAA system has not been proposed yet. The representation of degrees.
  • the embodiment of the present invention provides a data communication method and device, which can implement scheduling of multiple uplink subframes by indicating identifiers of multiple uplink subframes that are scheduled, thereby saving signaling overhead.
  • a first aspect of the present invention provides a data communication method, including:
  • a second aspect of the present invention provides a data communication method, including:
  • the first stage uplink scheduling grant information includes first indication information indicating an identifier of multiple uplink subframes on a second spectrum scheduled by the user equipment, the second spectrum Unlicensed spectrum;
  • a third aspect of the present invention provides a data communication apparatus, which is applied to a user equipment, and includes:
  • the transceiver unit is configured to receive, by the base station, the first phase uplink scheduling grant information that is sent by the first downlink subframe, where the first phase uplink scheduling grant information includes multiple uplink subframes that are used to indicate the scheduled second spectrum.
  • a processing unit configured to determine, according to the first indication information, the scheduled multiple uplink subframes
  • the transceiver unit is further configured to perform uplink data transmission on the scheduled multiple uplink subframes.
  • a fourth aspect of the present invention provides a data communication apparatus, which is applied to a base station, and includes:
  • a generating unit configured to generate first stage uplink scheduling grant information, where the first stage uplink scheduling grant information includes first indication information for indicating an identifier of multiple uplink subframes on a second spectrum scheduled by the user equipment,
  • the second spectrum is an unlicensed spectrum
  • the transceiver unit is configured to send the first stage uplink scheduling grant information to the user equipment by using the first downlink subframe.
  • the user equipment receives the first-stage uplink scheduling grant information that is sent by the base station by using the first downlink subframe, where the first-stage uplink scheduling grant information includes multiple uplinks for indicating the scheduled second spectrum.
  • the first indication information of the identifier of the subframe, where the second spectrum is an unlicensed spectrum determining, according to the first indication information, the scheduled multiple uplink subframes, and performing uplink on the determined multiple uplink subframes Data is sent.
  • the indication information included in the uplink scheduling grant information of the downlink subframe indicates the identifier of the scheduled multiple uplink subframes, thereby saving signaling overhead.
  • FIG. 1 is a schematic structural diagram of a system according to an embodiment of the present disclosure
  • FIG. 2 is a flowchart of a data communication method according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of another data communication method according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a data communication apparatus according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of another data communication apparatus according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of still another data communication apparatus according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of still another data communication apparatus according to an embodiment of the present invention.
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • Frequency Division Multiple Access Frequency Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Division Multiple Access
  • SC-FDMA Single-Carrier Frequency-Division Multiple Access
  • a CDMA network can implement wireless technologies such as Universal Telecommunication Radio Access (UTRA) and the Telecommunications Industry Association (TIA).
  • UTRA technology includes Wideband CDMA (WCDMA). And other variants of CDMA. Technologies include the IS-2000, IS-95 and IS-856 standards from the Electronic Industries Association (EIA) and TIA.
  • TDMA networks can be implemented such as Global System for Mobile Communication (Global System for Mobile Communication) Wireless technology such as GSM).
  • OFDMA system To achieve such as Evolved UTRA (E-UTRA), Ultra Mobile Broadband (UMB), IEEE 802.11 (Wireless Fidelity, Wi-Fi), IEEE 802.16 (Worldwide Interoperability for Microwave Access, WiMAX), Wireless technology such as IEEE802.20 and Flash-OFDMA.
  • E-UTRA Evolved UTRA
  • UMB Ultra Mobile Broadband
  • IEEE 802.11 Wireless Fidelity, Wi-Fi
  • IEEE 802.16 Worldwide Interoperability for Microwave Access, WiMAX
  • Wireless technology such as IEEE802.20 and Flash-OFDMA.
  • UTRA and E-UTRA technologies are part of the Universal Mobile Telecommunications System (UMTS).
  • 3GPP Long Term Evolution (LTE) and LTE-Advanced (LTE-A) are newer versions of UMTS that use E-UTRA.
  • UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project” (3GPP).
  • UMB is described in documents from an organization called “3rd Generation Partnership Project 2" (3GPP2).
  • the techniques described herein may be used for the wireless networks and wireless access technologies mentioned above, as well as other wireless networks and wireless access technologies.
  • LTE or LTE-A or collectively referred to as "LTE/-A”
  • LTE/-A terminology is used in many of the descriptions below.
  • the wireless communication network may include multiple base stations capable of supporting communication of multiple user equipments.
  • the user equipment can communicate with the base station over the downlink and uplink.
  • the downlink (or forward link) refers to the communication link from the base station to the user equipment
  • the uplink (or reverse link) refers to the communication link from the user equipment to the base station.
  • a user device can utilize a wireless communication system to transmit and receive data for two-way communication.
  • the user equipment may include a transmitter for data transmission and a receiver for data reception.
  • the transmitter can modulate the transmit Local Oscillator (LO) signal with data to obtain a modulated Radio Frequency (RF) signal, and amplify the modulated RF signal to obtain proper transmission.
  • the RF signal is output at the power level and the output RF signal is transmitted to the base station via the antenna.
  • the receiver can obtain the received RF signal via an antenna, amplify and downconvert the received RF signal with the received LO signal, and process the downconverted signal to recover the data transmitted by the base station.
  • the user equipment can support communication with multiple wireless systems of different Radio Access Technology (RAT) (eg, LTE/TE-A and NR). Each wireless system may have certain characteristics and requirements to efficiently support simultaneous communication of wireless systems utilizing different RATs.
  • RAT Radio Access Technology
  • User equipment may include mobile stations, terminals, access terminals, subscriber units, stations, and the like.
  • User equipment can also be cellular phones, smart phones, tablet computers, wireless modems, personal digital assistants Personal Digital Assistant (PDA), handheld devices, laptops, smartbooks, netbooks, cordless phones, wireless local loop (WLL) sites, Bluetooth devices, and more.
  • PDA Personal Digital Assistant
  • the user equipment may be capable of communicating with the wireless system, and may also be capable of receiving signals from a broadcast station, one or more satellites in a Global Navigation Satellite System (GNSS), or the like.
  • GNSS Global Navigation Satellite System
  • the user equipment may support one or more RATs for wireless communication, such as GSM, WCDMA, cdma2000, LTE/LTE-A, 802.11, and the like.
  • RAT radio access technology
  • RAT radio technology
  • air interface and “standard” are often used interchangeably.
  • User equipment can support carrier aggregation, and carrier aggregation is operation on multiple carriers.
  • Carrier aggregation can also be referred to as multi-carrier operation.
  • a carrier can refer to a range of frequencies that are used for communication and can be associated with certain characteristics. For example, a carrier may be associated with system information and/or control information describing operations on the carrier.
  • a carrier may also be referred to as a component carrier (CC), a frequency channel, a cell, and the like.
  • CC component carrier
  • a frequency band can include one or more carriers. Illustratively, each carrier can cover up to 20 MHz.
  • the user equipment can be configured with up to 5 carriers in one or two frequency bands.
  • the user equipment may include multiple receivers to simultaneously receive multiple downlink signals at different frequencies.
  • These multiple downlink signals may be transmitted by one or more base stations on multiple carriers at different frequencies for carrier aggregation.
  • Each receiver may receive one or more downlink signals transmitted to the user equipment on one or more carriers.
  • a UE operating in a carrier aggregation scenario is configured to aggregate certain functions of multiple carriers, such as control and feedback functions, on the same carrier, which may be referred to as a primary carrier or a primary component carrier (PCC). ).
  • the remaining carriers supported by the primary carrier are referred to as associated secondary carriers or secondary component carriers (SCCs).
  • the primary carrier is sent by the primary cell.
  • the secondary carrier is sent by the secondary cell. In some embodiments, there may be multiple primary carriers.
  • the secondary carrier can be added or removed without affecting the basic operation of the UE.
  • control functions may be aggregated from at least two carriers onto one carrier to form a primary carrier and one or more associated secondary carriers.
  • a communication link can be established for the primary carrier and each secondary carrier. The communication can then be controlled based on the primary carrier.
  • the user equipment may also send a UE capability information message indicating the supported frequency band and carrier aggregation bandwidth class to the serving base station.
  • the serving base station can configure the UE using an RRC connection reconfiguration procedure.
  • the RRC connection reconfiguration procedure allows the serving base station to add and remove service bases for transmission on the secondary carrier.
  • the secondary cell of the station (currently up to four secondary cells) and the primary cell of the serving base station transmitting the primary carrier.
  • the serving base station may use the RRC Connection Reconfiguration procedure to add and remove secondary cells at the target primary cell.
  • the serving base station can activate or deactivate the data transmission of the secondary cell using the Activate/Deactivate MAC Control element.
  • the UE monitors the Master Information Block (MIB) and the System Information Block SIB from the primary cell.
  • the primary cell is responsible for transmitting the MIB of the secondary cell and some SIBs to the UE.
  • the primary cell sends a secondary cell MIB and some SIBs by using a radio resource configuration common secondary cell (RadioResourceConfigCommonSCell) information element and a radio resource dedicated secondary cell (RadioResourceDedicatedSCell) information element.
  • RadioResourceConfigCommonSCell radio resource configuration common secondary cell
  • RadioResourceDedicatedSCell radio resource dedicated secondary cell
  • the primary carrier or the primary component carrier may be configured as a first spectrum, and the first spectrum may be a licensed spectrum; the associated secondary carrier or secondary component carrier may be configured as a second spectrum, The second spectrum is an unlicensed spectrum.
  • the uplink/downlink carriers adopt Single-Carrier Frequency-Division Multiple Access (SC-FDMA)/OFDM and Cyclic Prefix (CP) respectively. ).
  • SC-FDMA Single-Carrier Frequency-Division Multiple Access
  • CP Cyclic Prefix
  • the uplink and downlink carriers can be unified, that is, both uplink and downlink adopt OFDM and CP.
  • the bandwidth of the traditional LTE cell working in the frequency band is composed of RBs, and the RBs have fixed subcarrier spacing and symbol length respectively.
  • the size in the frequency domain is 180 kHz (ie, 12 15 kHz subcarriers).
  • Interval including 7 symbols in the time domain, the length of one symbol is approximately equal to 71.5us.
  • different subcarriers may no longer have a fixed subcarrier spacing and a fixed symbol length (which may be dynamically changed) based on the traffic type.
  • the NR system newly defines the concept of "numerology" (reference value), which mainly includes subcarrier spacing, CP length and TTI length.
  • number of service types mainly includes subcarrier spacing, CP length and TTI length.
  • the "numerology" types of different service types may also be different, meaning that different types of subcarrier spacing, CP length, or TTI length may be different.
  • next generation mobile communications will support a single carrier bandwidth of up to 100 MHz.
  • the size of one resource block RB in the frequency domain becomes 900 KHz (ie, 12 75 KHz subcarrier intervals), and 0.1 ms is supported in the time domain.
  • the length of a radio frame is 10ms, but consists of 50 subframes, each subframe The length is 0.2ms.
  • the signal type applicable to the NR service described in this document may refer to a configuration including at least one of related parameters such as a carrier interval, a CP length, and a TTI length.
  • the embodiment of the present invention is applied to an LAA system that can combine all the above technical features, and the LAA system may use unlicensed spectrum resources (such as 5 GHz) with the aid of the spectrum of a Long Term Evolution (LTE) system. Spectrum).
  • LTE Long Term Evolution
  • Spectrum a Long Term Evolution
  • FIG. 1 shows the system architecture of the LTE/LTE-A system.
  • the description of each network element and interface is as follows:
  • the MME is a key control node in the 3GPP (3rd Generation Partnership Project) LTE, belonging to the core network.
  • the element is mainly responsible for the signaling processing part, that is, the control plane function, including access control, mobility management, attach and detach, session management function, and gateway selection.
  • the S-GW is an important network element of the core network in the 3GPP LTE. It is mainly responsible for the user plane function of user data forwarding, that is, routing and forwarding of data packets under the control of the MME.
  • An eNodeB may be a station that communicates with a user equipment UE, and may also be referred to as a base station, a Node B, an access point, and the like. Each eNB can provide communication coverage for a particular geographic area.
  • the term "cell” may refer to such a particular geographic coverage area of an eNB and/or such a particular geographic coverage area of an eNB subsystem serving the coverage area, depending on the context in which the term is used.
  • the eNB is mainly responsible for radio resource management, quality of service (QoS) management, data compression, and encryption on the air interface side.
  • QoS quality of service
  • the eNB is mainly responsible for forwarding control plane signaling to the MME and forwarding user plane service data to the S-GW.
  • the eNB may provide communication coverage for macro cells, pico cells, femto cells, and/or other types of cells.
  • a macro cell typically covers a relatively large geographic area (e.g., a range of several kilometers in radius) and may allow unrestricted access by UEs having subscriptions to services of the network provider.
  • a pico cell typically covers a relatively small geographic area and may allow unrestricted access by UEs having subscriptions to services of the network provider.
  • Femtocell pass Often also covers a relatively small geographic area (eg, home), and in addition to unrestricted access may also provide restricted access by UEs associated with the femto cell (eg, closed subscriber group (Closed Subscriber) UE in the group, CSG), UE of the user in the home, etc.).
  • the eNB of the macro cell may be referred to as a macro eNB.
  • An eNB of a pico cell may be referred to as a pico eNB.
  • the eNB of the femto cell may be referred to as a femto eNB or a home eNB.
  • the UE is a device that accesses the network side through the eNB in LTE, and may be, for example, a handheld terminal, a notebook computer, or other device that can access the network.
  • a specific channel for example, physical uplink shared channel, English: Physical Uplink Shared Channel, PUSCH for short
  • the UE needs to inform the eNB that the uplink data needs to be transmitted, and the eNB knows that the UE needs to transmit.
  • uplink data scheduling is performed for the UE.
  • S1 interface is a standard interface between the eNB and the core network.
  • the eNB is connected to the MME through the S1-MME interface, and is used for control signaling transmission; the eNB is connected to the S-GW through the S1-U interface, and is used for transmission of user data.
  • the S1-MME interface and the S1-U interface are collectively referred to as an S1 interface.
  • the X2 interface is a standard interface between the eNB and the eNB, and is used to implement interworking between the base stations.
  • the Uu interface is a radio interface between the UE and the base station eNB, and the UE accesses the LTE network through the Uu interface.
  • the data communication method of the embodiment of the present invention is mainly applied to the information exchanged between the UE and the Uu interface of the base station eNB, and the eNB sends the first-stage uplink scheduling grant information to the UE, where the first-stage uplink scheduling grant information includes The first indication information of the identifiers of the multiple uplink subframes in the second spectrum is scheduled, wherein the second spectrum is an unlicensed spectrum, and the UE determines the scheduled uplink by analyzing the first-stage uplink scheduling grant information. a subframe, and transmitting uplink data to the eNB in the determined plurality of uplink subframes.
  • FIG. 2 is a schematic flowchart of a data communication method according to an embodiment of the present invention; this embodiment is mainly described from the user equipment side, as shown in FIG. 2, the data communication method includes:
  • the first stage uplink scheduling grant information that is sent by the base station by using the first downlink subframe, where the first phase uplink scheduling grant information is used to indicate multiple uplinks on the scheduled second spectrum.
  • the uplink and downlink subframe distribution in the unlicensed frequency band in the LAA system is determined based on the service requirement and the result of the LBT, for example, when the uplink service demand is high, the number of uplink subframes may be generated. In the case of more downlink subframes, a downlink subframe is required to schedule multiple uplink subframes.
  • the base station side determines a plurality of uplink subframes to be scheduled, and generates first phase uplink scheduling grant information in the LAA system, where the first phase uplink scheduling grant information includes multiple uplinks on the second spectrum that are scheduled to be scheduled.
  • the first indication information of the identifier of the subframe, where the second spectrum is an unlicensed spectrum, and the first stage uplink scheduling grant information is sent to the user equipment by using Downlink Control Information (DCI) of the first downlink subframe.
  • DCI Downlink Control Information
  • the first stage uplink scheduling grant information may be sent through a downlink subframe of the licensed spectrum (ie, the first spectrum), or may be sent by using a downlink subframe of the unlicensed spectrum (ie, the second spectrum).
  • the downlink subframe transmission of the licensed spectrum may be adopted.
  • the first indication information in the embodiment of the present invention may be used to multiplex the existing downlink control information format (DCI format), and the user detects the different DCI formats by using a blind detection manner, and adds a new DCI format.
  • DCI format downlink control information format
  • the number of blind detections of user equipment increases, which increases the complexity and power consumption of the user equipment.
  • multiplexing the existing DCI format to carry the first indication information can reduce the blind detection complexity of the UE, and multiplexing the existing DCI format does not need to generate a new DCI format, and the control signaling overhead can be controlled. Lower level.
  • the first indication information may indicate, by means of bit mapping, whether the multiple subframes are scheduled, that is, the first indication information includes a plurality of character bits, where the multiple character bits are used to indicate multiple subframes. Whether the frame is scheduled, one character corresponds to one subframe, wherein the first character is used to indicate that the corresponding subframe is scheduled, and the second character is used to indicate that the corresponding subframe is not scheduled. For example, the corresponding bit can be indicated by the bit “1”. The subframe is scheduled, and the bit "0" indicates that the corresponding subframe is not scheduled.
  • the multiple character bits may be represented by setting redundant bits of the preset information field in the DCI and/or a preset idle information field.
  • the preset idle information field includes a redundancy version (Redundancy) A version, RV) field, a channel status indication (CSI) request field, and at least one of a Sounding Reference Signal (SRS) request field.
  • Redundancy redundancy version
  • RV redundancy version
  • CSI channel status indication
  • SRS Sounding Reference Signal
  • a plurality of uplink subframe numbers to be scheduled are represented by using a bit mapping manner, wherein a subframe corresponding to a bit set to "1" is a The scheduled subframe.
  • the 4 bit information field is set to 1011, that is, the scheduled uplink subframe sequence number is 1st, 3rd, and 4th subframes after receiving the first stage uplink scheduling grant information for 4ms.
  • the first indication information includes a starting subframe identifier of the consecutive consecutive multiple subframes and a total length of the multiple subframes.
  • the total length of the multiple subframes may be Is the number of subframes of the multiple subframes, or the total duration of the multiple subframes.
  • the starting subframe identifier and the total length of the multiple subframes may be represented by setting redundant bits of the preset information field in the DCI and/or a preset idle information field.
  • the preset idle information field includes at least one of an RV domain, a CSI request domain, and an SRS request domain.
  • a frame structure includes 10 subframes, and 10 subframes in the frame structure are respectively numbered 1, 2, 3, 4...10 according to chronological order. If it is necessary to continuously schedule the 4th subframe to the 6th subframe, An indication information may include a starting subframe identifier 4 and the number of the scheduled plurality of subframes 3.
  • the first indication information includes a starting subframe identifier and an ending subframe identifier of the consecutive consecutive subframes, and optionally, a frame structure is unique for each subframe. Assign a subframe identifier, such as a subframe number.
  • the starting subframe identifier and the ending subframe identifier of the multiple subframes may be indicated by setting redundant bits of the preset information field in the DCI and/or a preset idle information field.
  • the preset idle information field includes at least one of an RV domain, a CSI request domain, and an SRS request domain.
  • a frame structure includes 10 subframes, and 10 subframes in the frame structure are respectively numbered 1, 2, 3, 4...10 according to chronological order. If it is necessary to continuously schedule the 4th subframe to the 6th subframe, An indication information may include an identification of the 4th subframe and an identification of the 6th subframe.
  • S101 Determine, according to the first indication information, the scheduled multiple uplink subframes, and perform uplink data transmission on the multiple uplink subframes.
  • the user equipment side receives the uplink scheduling grant information sent by the base station through the first downlink subframe, parses the first indication information in the uplink scheduling grant information, and determines the scheduled multiple.
  • the subframe is performed to perform uplink data transmission on the determined plurality of uplink subframes.
  • the plurality of subframe identifiers that are scheduled are obtained, thereby performing uplink data transmission.
  • the user equipment receives the first-stage uplink scheduling grant information that is sent by the base station by using the first downlink subframe, where the first-stage uplink scheduling grant information includes multiple uplinks for indicating the scheduled second spectrum.
  • the first indication information of the identifier of the subframe, where the second spectrum is an unlicensed spectrum determining, according to the first indication information, the scheduled multiple uplink subframes, and performing uplink on the determined multiple uplink subframes Data is sent.
  • the indication information included in the uplink scheduling grant information of the downlink subframe indicates the identifier of the scheduled multiple uplink subframes, thereby saving signaling overhead.
  • FIG. 3 is a flowchart of another data communication method according to an embodiment of the present invention. This embodiment is mainly described from the user equipment side. As shown in FIG. 3, the data communication method in this embodiment includes:
  • S200 Receive second-stage uplink scheduling grant information that is sent by the base station by using the second downlink subframe, where the second-stage uplink scheduling grant information includes a second indication for indicating uplink multi-subframe scheduling on the second spectrum. information.
  • the base station sends the second-stage uplink scheduling grant information to the user equipment by using the second downlink subframe, in order to perform the uplink multi-subframe scheduling on the second spectrum to the user equipment, where the second-stage uplink scheduling grant is permitted.
  • the information includes second indication information for indicating uplink multi-subframe scheduling.
  • the DCI of the first subframe is parsed according to the preset encapsulation format of the multi-subframe scheduling, and the plurality of uplink subframe identifiers are obtained, so that the uplink data is sent on the multiple uplink subframes.
  • the second indication information is carried by a preset idle information field in the downlink control information DCI of the second downlink subframe; or the second indication information is downlinked by the second downlink subframe.
  • the preset idle information field includes at least one of an RV domain, a CSI request domain, and an SRS request domain.
  • the redundant bits of the preset information field in the DCI are set to redundant values (that is, values that are not defined in the original system/or in some It is not used in the specific scenario) to indicate that this is a special control for uplink multi-subframe scheduling.
  • information For example, including but not limited to: setting the 2-bit information field in the new data indication (NDI) field to 00 (in the original system, only the 10, 01, 11 in the information field was given meaning, but not The meaning is assigned to 00), and the uplink multi-subframe scheduling is indicated by the redundant bit.
  • NDI new data indication
  • the second scheduling grant information may be sent through a downlink subframe of the licensed spectrum (ie, the first spectrum), or may be sent by using a downlink subframe of the unlicensed spectrum (ie, the second spectrum).
  • the downlink subframe transmission of the licensed spectrum may be adopted.
  • the first stage uplink scheduling grant information that is sent by the base station by using the first downlink subframe, where the first stage uplink scheduling grant information includes an identifier for indicating multiple uplink subframes on the scheduled second frequency spectrum.
  • First indication information wherein the second spectrum is an unlicensed spectrum;
  • S202 Determine, according to the first indication information, the scheduled multiple uplink subframes, and perform uplink data transmission on the multiple uplink subframes.
  • steps S201 to S202 of the embodiment of the present invention refer to steps S100 to S101 of the embodiment of FIG. 2, and details are not described herein again.
  • the transmission of the uplink scheduling grant information corresponding to the uplink data transmission involved in the embodiment of the present invention may be divided into one phase transmission (one-time transmission) or two-phase transmission (two transmissions).
  • the user equipment may receive the first-stage uplink scheduling grant information sent by the base station by using the first downlink subframe, where the first-stage uplink scheduling grant information is included.
  • the first indication information indicating the identifiers of the multiple uplink subframes on the scheduled second spectrum, where the second spectrum is an unlicensed spectrum, and determining the scheduled multiple uplink subframes according to the first indication information And performing uplink data transmission on the determined multiple uplink subframes.
  • the second-stage uplink scheduling grant information may be a public, semi-static grant information, which may include
  • the second indication information for performing the uplink multi-subframe scheduling on the second spectrum may further include a Resource Block (RB) allocation information, an MCS level information, and the like;
  • the first stage uplink scheduling grant information may be one
  • the scheduling information of the specific uplink data transmission may include, for example, first indication information indicating an identifier of the multiple uplink subframes on the scheduled second frequency spectrum, and may trigger the PUSCH channel to transmit on a certain subframe.
  • the first stage and the second stage mentioned in this embodiment are only used to indicate that the sending time of the information is different, and the first stage does not indicate that The chronological order precedes the second phase.
  • the sending time of the second-stage uplink scheduling grant information may be before the uplink scheduling grant information in the first phase.
  • the method of using one phase for uplink scheduling is relatively simple, but in order to avoid the occurrence of scheduling failure due to LBT failure, the method of using the two-stage uplink grant information for uplink scheduling is proved to be effective in improving scheduling efficiency. benefit.
  • the user equipment receives the first-stage uplink scheduling grant information that is sent by the base station by using the first downlink subframe, where the first-stage uplink scheduling grant information includes multiple uplinks for indicating the scheduled second spectrum.
  • the first indication information of the identifier of the subframe, where the second spectrum is an unlicensed spectrum determining, according to the first indication information, the scheduled multiple uplink subframes, and performing uplink on the determined multiple uplink subframes Data is sent.
  • the indication information included in the uplink scheduling grant information of the downlink subframe indicates the identifier of the scheduled multiple uplink subframes, thereby saving signaling overhead.
  • FIG. 4 is a flowchart of still another data communication method according to an embodiment of the present invention. This embodiment is mainly described from the base station side. As shown in FIG. 4, the data communication method in the embodiment of the present invention includes the following steps:
  • the first stage uplink scheduling grant information is generated, where the first stage uplink scheduling grant information includes first indication information that is used to indicate an identifier of multiple uplink subframes on the second spectrum that is scheduled by the user equipment, where The second spectrum is an unlicensed spectrum;
  • the uplink and downlink subframe distribution in the unlicensed frequency band in the LAA system is determined based on the service requirement and the result of the LBT, for example, when the uplink service demand is high, the number of uplink subframes may be generated. In the case of more downlink subframes, a downlink subframe is required to schedule multiple uplink subframes.
  • the base station side determines a plurality of uplink subframes to be scheduled, and generates first phase uplink scheduling grant information in the LAA system, where the first phase uplink scheduling grant information includes multiple uplinks on the second spectrum that are scheduled to be scheduled.
  • the first indication information of the identifier of the subframe, where the second spectrum is an unlicensed spectrum, and the first stage uplink scheduling grant information is sent to the user equipment by using Downlink Control Information (DCI) of the first downlink subframe.
  • DCI Downlink Control Information
  • the first indication information in the embodiment of the present invention may reuse an existing downlink control information format.
  • DCI format the user detects the different DCI formats by blind detection. Adding a new DCI format means that the number of blind detections of the user equipment increases, which will improve the implementation complexity and power consumption of the user equipment. .
  • multiplexing the existing DCI format to carry the first indication information can reduce the blind detection complexity of the UE, and multiplexing the existing DCI format does not need to generate a new DCI format, and the control signaling overhead can be controlled. Lower level.
  • the first indication information may indicate, by means of bit mapping, whether the multiple subframes are scheduled, that is, the first indication information includes a plurality of character bits, where the multiple character bits are used to indicate multiple subframes. Whether the frame is scheduled, one character corresponds to one subframe, wherein the first character is used to indicate that the corresponding subframe is scheduled, and the second character is used to indicate that the corresponding subframe is not scheduled. For example, the corresponding bit can be indicated by the bit “1”. The subframe is scheduled, and the bit "0" indicates that the corresponding subframe is not scheduled.
  • the multiple character bits may be represented by setting redundant bits of the preset information field in the DCI and/or a preset idle information field.
  • the preset idle information field includes at least one of a redundancy version (RV) domain, a channel status indication (CSI) request domain, and a sounding reference signal (SRS) request domain.
  • RV redundancy version
  • CSI channel status indication
  • SRS sounding reference signal
  • a plurality of uplink subframe numbers to be scheduled are represented by using a bit mapping manner, wherein a subframe corresponding to a bit set to "1" is a The scheduled subframe.
  • the 4 bit information field is set to 1011, that is, the scheduled uplink subframe sequence number is 1st, 3rd, and 4th subframes after receiving the first stage uplink scheduling grant information for 4ms.
  • the first indication information includes a starting subframe identifier of the consecutive consecutive multiple subframes and a total length of the multiple subframes.
  • the total length of the multiple subframes may be Is the number of subframes of the multiple subframes, or the total duration of the multiple subframes.
  • the starting subframe identifier and the total length of the multiple subframes may be represented by setting redundant bits of the preset information field in the DCI and/or a preset idle information field.
  • the preset idle information field includes at least one of an RV domain, a CSI request domain, and an SRS request domain.
  • a frame structure includes 10 subframes, and 10 subframes in the frame structure are respectively numbered 1, 2, 3, 4...10 according to chronological order. If it is necessary to continuously schedule the 4th subframe to the 6th subframe, An indication information may include a starting subframe identifier 4 and the number of the scheduled plurality of subframes 3.
  • the first indication information includes a starting subframe identifier and an ending subframe identifier of the consecutive consecutive subframes, and optionally, a frame structure is unique for each subframe. Assign a subframe identifier, such as a subframe number.
  • the starting subframe identifier and the ending subframe identifier of the multiple subframes may be indicated by setting redundant bits of the preset information field in the DCI and/or a preset idle information field.
  • the preset idle information field includes at least one of an RV domain, a CSI request domain, and an SRS request domain.
  • a frame structure includes 10 subframes, and 10 subframes in the frame structure are respectively numbered 1, 2, 3, 4...10 according to chronological order. If it is necessary to continuously schedule the 4th subframe to the 6th subframe, An indication information may include an identification of the 4th subframe and an identification of the 6th subframe.
  • the first stage uplink scheduling grant information is sent to the user equipment by using a first downlink subframe.
  • the first-stage uplink scheduling grant information may be sent through a downlink subframe of the licensed spectrum (that is, the first spectrum), or may be sent by using a downlink subframe of the unlicensed spectrum (that is, the second spectrum).
  • the downlink subframe transmission of the licensed spectrum may be adopted.
  • the method before the generating the first-stage uplink scheduling grant information, the method further includes steps S302-S303:
  • the second stage uplink scheduling grant information is generated, where the second stage uplink scheduling grant information includes second indication information used to indicate that the user equipment performs uplink multi-subframe scheduling on the second spectrum.
  • the base station sends the second-stage uplink scheduling grant information to the user equipment by using the second downlink subframe, in order to perform the uplink multi-subframe scheduling on the second spectrum to the user equipment, where the second-stage uplink scheduling grant is permitted.
  • the information includes second indication information for indicating uplink multi-subframe scheduling.
  • the DCI of the first subframe is parsed according to the preset encapsulation format of the multi-subframe scheduling, and the plurality of uplink subframe identifiers are obtained, so that the uplink data is sent on the multiple uplink subframes.
  • the second indication information is carried by a preset idle information field in the downlink control information DCI of the second downlink subframe; or the second indication information is downlinked by the second downlink subframe.
  • the preset idle information field includes at least one of an RV domain, a CSI request domain, and an SRS request domain.
  • the redundant bits of the preset information field in the DCI are set to redundant values (that is, values that are not defined in the original system/or in some It is not used in the specific scenario) to indicate that this is a special control information for uplink multi-subframe scheduling. For example, including but not limited to: setting the 2-bit information field in the new data indication (NDI) field to 00 (in the original system, only the 10, 01, 11 in the information field was given meaning, but not The meaning is assigned to 00), and the uplink multi-subframe scheduling is indicated by the redundant bit.
  • NDI new data indication
  • the second scheduling grant information may be sent through a downlink subframe of the licensed spectrum (ie, the first spectrum), or may be sent by using a downlink subframe of the unlicensed spectrum (ie, the second spectrum).
  • the downlink subframe transmission of the licensed spectrum may be adopted.
  • the user equipment receives the first-stage uplink scheduling grant information that is sent by the base station by using the first downlink subframe, where the first-stage uplink scheduling grant information includes multiple uplinks for indicating the scheduled second spectrum.
  • the first indication information of the identifier of the subframe, where the second spectrum is an unlicensed spectrum determining, according to the first indication information, the scheduled multiple uplink subframes, and performing uplink on the determined multiple uplink subframes Data is sent.
  • the indication information included in the uplink scheduling grant information of the downlink subframe indicates the identifier of the scheduled multiple uplink subframes, thereby saving signaling overhead.
  • the specific implementation of the data communication apparatus provided by the embodiment of the present invention is described below with reference to FIG. 5 to FIG.
  • the data communication apparatus described in FIGS. 5 and 6 can be applied to the user equipment side, and the data communication apparatus of FIGS. 7 to 8 can be applied to the base station side.
  • FIG. 5 is a schematic structural diagram of a data communication apparatus according to an embodiment of the present invention.
  • the data communication apparatus can be applied to a user equipment, such as any UE in FIG. 1 , as shown in FIG. 4 , which is described in this embodiment.
  • a data communication device includes a transceiver unit 100 and a processing unit 101.
  • the transceiver unit 100 is configured to receive first stage uplink scheduling grant information that is sent by the base station by using the first downlink subframe, where the first phase uplink scheduling grant information is used to indicate that the second spectrum is scheduled.
  • the uplink and downlink subframe distribution in the unlicensed frequency band in the LAA system is determined based on the service requirement and the result of the LBT, for example, when the uplink service demand is high, the number of uplink subframes may be generated. In the case of more downlink subframes, a downlink subframe is required to schedule multiple uplink subframes.
  • the base station side determines a plurality of uplink subframes to be scheduled, and generates first phase uplink scheduling grant information in the LAA system, where the first phase uplink scheduling grant information includes multiple uplinks on the second spectrum that are scheduled to be scheduled.
  • the first indication information of the identifier of the subframe, where the second spectrum is an unlicensed spectrum, and the first stage uplink scheduling grant information is sent to the user equipment by using Downlink Control Information (DCI) of the first downlink subframe.
  • DCI Downlink Control Information
  • the first stage uplink scheduling grant information may be sent through a downlink subframe of the licensed spectrum (ie, the first spectrum), or may be sent by using a downlink subframe of the unlicensed spectrum (ie, the second spectrum).
  • the downlink subframe transmission of the licensed spectrum may be adopted.
  • the first indication information in the embodiment of the present invention may be used to multiplex the existing downlink control information format (DCI format), and the user detects the different DCI formats by using a blind detection manner, and adds a new DCI format.
  • DCI format downlink control information format
  • the number of blind detections of user equipment increases, which increases the complexity and power consumption of the user equipment.
  • multiplexing the existing DCI format to carry the first indication information can reduce the blind detection complexity of the UE, and multiplexing the existing DCI format does not need to generate a new DCI format, and the control signaling overhead can be controlled. Lower level.
  • the first indication information may indicate, by means of bit mapping, whether the multiple subframes are scheduled, that is, the first indication information includes a plurality of character bits, where the multiple character bits are used to indicate multiple subframes. Whether the frame is scheduled, one character corresponds to one subframe, wherein the first character is used to indicate that the corresponding subframe is scheduled, and the second character is used to indicate that the corresponding subframe is not scheduled. For example, the corresponding bit can be indicated by the bit “1”. The subframe is scheduled, and the bit "0" indicates that the corresponding subframe is not scheduled.
  • the multiple character bits may be represented by setting redundant bits of the preset information field in the DCI and/or a preset idle information field.
  • the preset idle information field includes a redundancy version (Redundancy) A version, RV) field, a channel status indication (CSI) request field, and at least one of a Sounding Reference Signal (SRS) request field.
  • Redundancy redundancy version
  • RV redundancy version
  • CSI channel status indication
  • SRS Sounding Reference Signal
  • a plurality of uplink subframe numbers to be scheduled are represented by using a bit mapping manner, wherein a subframe corresponding to a bit set to "1" is a The scheduled subframe.
  • the 4 bit information field is set to 1011, that is, the scheduled uplink subframe sequence number is 1st, 3rd, and 4th subframes after receiving the first stage uplink scheduling grant information for 4ms.
  • the first indication information includes a starting subframe identifier of the consecutive consecutive multiple subframes and a total length of the multiple subframes.
  • the total length of the multiple subframes may be Is the number of subframes of the multiple subframes, or the total duration of the multiple subframes.
  • the starting subframe identifier and the total length of the multiple subframes may be represented by setting redundant bits of the preset information field in the DCI and/or a preset idle information field.
  • the preset idle information field includes at least one of an RV domain, a CSI request domain, and an SRS request domain.
  • a frame structure includes 10 subframes, and 10 subframes in the frame structure are respectively numbered 1, 2, 3, 4...10 according to chronological order. If it is necessary to continuously schedule the 4th subframe to the 6th subframe, An indication information may include a starting subframe identifier 4 and the number of the scheduled plurality of subframes 3.
  • the first indication information includes a starting subframe identifier and an ending subframe identifier of the consecutive consecutive subframes, and optionally, a frame structure is unique for each subframe. Assign a subframe identifier, such as a subframe number.
  • the starting subframe identifier and the ending subframe identifier of the multiple subframes may be indicated by setting redundant bits of the preset information field in the DCI and/or a preset idle information field.
  • the preset idle information field includes at least one of an RV domain, a CSI request domain, and an SRS request domain.
  • a frame structure includes 10 subframes, and 10 subframes in the frame structure are respectively numbered 1, 2, 3, 4...10 according to chronological order. If it is necessary to continuously schedule the 4th subframe to the 6th subframe, An indication information may include an identification of the 4th subframe and an identification of the 6th subframe.
  • the processing unit 101 is configured to determine, according to the first indication information, the scheduled multiple uplink subframes;
  • the transceiver unit 100 is further configured to perform uplink data transmission on the scheduled multiple uplink subframes.
  • the user equipment side receives the uplink scheduling grant information sent by the base station through the first downlink subframe, parses the first indication information in the uplink scheduling grant information, and determines the scheduled multiple uplink subframes. Thereby, uplink data transmission is performed on the determined plurality of uplink subframes.
  • the plurality of subframe identifiers that are scheduled are obtained, thereby performing uplink data transmission.
  • the transceiver unit 100 is further configured to: before receiving the first-stage uplink scheduling grant information sent by the base station by using the first downlink subframe, receive the second-stage uplink scheduling grant that is sent by the base station by using the second downlink subframe.
  • the second stage uplink scheduling grant information includes second indication information for indicating uplink multi-subframe scheduling on the second spectrum.
  • the base station sends the second-stage uplink scheduling grant information to the user equipment by using the second downlink subframe, in order to perform the uplink multi-subframe scheduling on the second spectrum to the user equipment, where the second-stage uplink scheduling grant is permitted.
  • the information includes second indication information for indicating uplink multi-subframe scheduling.
  • the DCI of the first subframe is parsed according to the preset encapsulation format of the multi-subframe scheduling, and the plurality of uplink subframe identifiers are obtained, so that the uplink data is sent on the multiple uplink subframes.
  • the second indication information is carried by a preset idle information field in the downlink control information DCI of the second downlink subframe; or the second indication information is downlinked by the second downlink subframe.
  • the preset idle information field includes at least one of an RV domain, a CSI request domain, and an SRS request domain.
  • the redundant bits of the preset information field in the DCI are set to redundant values (that is, values that are not defined in the original system/or in some It is not used in the specific scenario) to indicate that this is a special control information for uplink multi-subframe scheduling. For example, including but not limited to: setting the 2-bit information field in the new data indication (NDI) field to 00 (in the original system, only the 10, 01, 11 in the information field was given meaning, but not The meaning is assigned to 00), and the uplink multi-subframe scheduling is indicated by the redundant bit.
  • NDI new data indication
  • the second scheduling grant information may be sent through a downlink subframe of the licensed spectrum (ie, the first spectrum), or may be sent by using a downlink subframe of the unlicensed spectrum (ie, the second spectrum).
  • the downlink subframe transmission of the licensed spectrum may be adopted.
  • the transmission of the uplink scheduling grant information corresponding to the uplink data transmission involved in the embodiment of the present invention may be divided into one phase transmission (one-time transmission) or two-phase transmission (two transmissions).
  • the user equipment may receive the first-stage uplink scheduling grant information sent by the base station by using the first downlink subframe, where the first-stage uplink scheduling grant information is included.
  • the first indication information indicating the identifiers of the multiple uplink subframes on the scheduled second spectrum, where the second spectrum is an unlicensed spectrum, and determining the scheduled multiple uplink subframes according to the first indication information And performing uplink data transmission on the determined multiple uplink subframes.
  • the second-stage uplink scheduling grant information may be a public, semi-static grant information, which may include
  • the second indication information for performing the uplink multi-subframe scheduling on the second spectrum may further include a Resource Block (RB) allocation information, an MCS level information, and the like;
  • the first stage uplink scheduling grant information may be one
  • the scheduling information of the specific uplink data transmission may include, for example, first indication information indicating an identifier of the multiple uplink subframes on the scheduled second frequency spectrum, and may trigger the PUSCH channel to transmit on a certain subframe.
  • the first phase and the second phase in this embodiment are only used to indicate that the transmission time of the information is different, and the first phase does not mean that the second phase is prior to the chronological order.
  • the sending time of the second-stage uplink scheduling grant information may be before the uplink scheduling grant information in the first phase.
  • the method of using one phase for uplink scheduling is relatively simple, but in order to avoid the occurrence of scheduling failure due to LBT failure, the method of using the two-stage uplink grant information for uplink scheduling is proved to be effective in improving scheduling efficiency. benefit.
  • the user equipment receives the first-stage uplink scheduling grant information that is sent by the base station by using the first downlink subframe, where the first-stage uplink scheduling grant information includes multiple uplinks for indicating the scheduled second spectrum.
  • the first indication information of the identifier of the subframe, where the second spectrum is an unlicensed spectrum determining, according to the first indication information, the scheduled multiple uplink subframes, and performing uplink on the determined multiple uplink subframes Data is sent.
  • the indication information included in the uplink scheduling grant information of the downlink subframe indicates the identifier of the scheduled multiple uplink subframes, thereby saving signaling overhead.
  • FIG. 6 is a schematic structural diagram of another data communication apparatus according to an embodiment of the present invention.
  • the data communication apparatus can be applied to a user equipment.
  • the data communication apparatus 1000 includes a transceiver 1010, a memory 1020, and a processor 1030.
  • the user equipment to which the data communication device is applied may be the UE shown in FIG. 1.
  • the processor 1030 controls the operation of the data communication device 1000.
  • the memory 1020 can include read only memory and random access memory and provides instructions and data to the processor 1030, which can be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array, or other programmable logic. Device. A portion of memory 1020 may also include non-volatile line random access memory (NVRAM).
  • NVRAM non-volatile line random access memory
  • the various components of data communication device 1000 are coupled together by a bus 1040, which in addition to the data bus includes a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 1040 in the figure. It should be noted that the above description of the structure of the data communication device can be applied to the subsequent embodiments.
  • the transceiver 1010 is configured to receive first stage uplink scheduling grant information that is sent by the base station by using the first downlink subframe, where the first phase uplink scheduling grant information includes multiple uplinks on the second spectrum that are scheduled to be scheduled.
  • the processor 1030 is configured to determine, according to the first indication information, the scheduled multiple uplink subframes.
  • the transceiver 1010 is further configured to perform uplink data transmission on the scheduled multiple uplink subframes.
  • the first indication information includes multiple character bits, where the multiple character bits are used to indicate whether multiple subframes are scheduled, and one character corresponds to one subframe, where the first character is used to indicate the corresponding sub-frame.
  • the frame is scheduled, and the second character is used to indicate that the corresponding subframe is not scheduled.
  • the first indication information includes a starting subframe identifier of the consecutive consecutive multiple subframes and a total length of the multiple subframes;
  • the first indication information includes a start subframe identifier and an end subframe identifier of a plurality of consecutive subframes that are scheduled.
  • the first indication information is carried by the preset idle information field in the downlink control information DCI of the first downlink subframe;
  • the first indication information is preset information in the downlink control information DCI of the first downlink subframe.
  • the redundant bit bearer of the domain is preset information in the downlink control information DCI of the first downlink subframe.
  • the preset idle information field includes at least one of a redundancy version RV domain, a channel state indication request CSI domain, and a sounding reference signal request SRS request domain.
  • the transceiver 1010 is further configured to receive, by the base station, the second-stage uplink scheduling grant information that is sent by the second downlink sub-frame, where the second-stage uplink scheduling grant information is used to indicate that the uplink is performed on the second spectrum.
  • the second indication information of the subframe scheduling is further configured to receive, by the base station, the second-stage uplink scheduling grant information that is sent by the second downlink sub-frame, where the second-stage uplink scheduling grant information is used to indicate that the uplink is performed on the second spectrum.
  • the second indication information of the subframe scheduling is further configured to receive, by the base station, the second-stage uplink scheduling grant information that is sent by the second downlink sub-frame, where the second-stage uplink scheduling grant information is used to indicate that the uplink is performed on the second spectrum.
  • the second indication information is carried by the preset idle information field in the downlink control information DCI of the second downlink subframe;
  • the second indication information is carried by the redundant bits of the preset information field in the downlink control information DCI of the second downlink subframe.
  • the preset idle information field includes at least one of a redundancy version RV domain, a channel state indication request CSI domain, and a sounding reference signal request SRS request domain.
  • the first stage uplink scheduling grant information is sent by using the first downlink subframe of the first spectrum; the second stage uplink scheduling grant information is sent by the second downlink subframe of the first spectrum;
  • the first spectrum is an authorized spectrum.
  • the transmission of the uplink scheduling grant information corresponding to the uplink data transmission involved in the embodiment of the present invention may be divided into one phase transmission (one-time transmission) or two-phase transmission (two transmissions).
  • the user equipment may receive the first-stage uplink scheduling grant information sent by the base station by using the first downlink subframe, where the first-stage uplink scheduling grant information is included.
  • the first indication information indicating the identifiers of the multiple uplink subframes on the scheduled second spectrum, where the second spectrum is an unlicensed spectrum, and determining the scheduled multiple uplink subframes according to the first indication information And performing uplink data transmission on the determined multiple uplink subframes.
  • the second-stage uplink scheduling grant information may be a public, semi-static grant information, which may include
  • the second indication information for performing the uplink multi-subframe scheduling on the second spectrum may further include a Resource Block (RB) allocation information, an MCS level information, and the like;
  • the first stage uplink scheduling grant information may be one
  • the scheduling information of the specific uplink data transmission may include, for example, first indication information indicating an identifier of the multiple uplink subframes on the scheduled second frequency spectrum, and may trigger the PUSCH channel to transmit on a certain subframe.
  • the first stage mentioned in this embodiment The second stage is only used to indicate that the information is sent in different times.
  • the first stage does not mean that the second stage is prior to the chronological order.
  • the sending time of the second-stage uplink scheduling grant information may be before the uplink scheduling grant information in the first phase.
  • the method of using one phase for uplink scheduling is relatively simple, but in order to avoid the occurrence of scheduling failure due to LBT failure, the method of using the two-stage uplink grant information for uplink scheduling is proved to be effective in improving scheduling efficiency. benefit.
  • the user equipment receives the first-stage uplink scheduling grant information that is sent by the base station by using the first downlink subframe, where the first-stage uplink scheduling grant information includes multiple uplinks for indicating the scheduled second spectrum.
  • the first indication information of the identifier of the subframe, where the second spectrum is an unlicensed spectrum determining, according to the first indication information, the scheduled multiple uplink subframes, and performing uplink on the determined multiple uplink subframes Data is sent.
  • the indication information included in the uplink scheduling grant information of the downlink subframe indicates the identifier of the scheduled multiple uplink subframes, thereby saving signaling overhead.
  • FIG. 7 is a schematic structural diagram of still another data communication apparatus according to an embodiment of the present invention.
  • the data communication apparatus of this embodiment may be applied to a base station side.
  • the data communication apparatus according to the embodiment of the present invention includes Unit 200 and transceiver unit 201;
  • the generating unit 200 is configured to generate first stage uplink scheduling grant information, where the first stage uplink scheduling grant information includes first indication information for indicating an identifier of multiple uplink subframes on the second spectrum scheduled by the user equipment.
  • the second spectrum is an unlicensed spectrum;
  • the uplink and downlink subframe distribution in the unlicensed frequency band in the LAA system is determined based on the service requirement and the result of the LBT, for example, when the uplink service demand is high, the number of uplink subframes may be generated. In the case of more downlink subframes, a downlink subframe is required to schedule multiple uplink subframes.
  • the base station side determines a plurality of uplink subframes to be scheduled, and generates first phase uplink scheduling grant information in the LAA system, where the first phase uplink scheduling grant information includes multiple uplinks on the second spectrum that are scheduled to be scheduled.
  • the first indication information of the identifier of the subframe, where the second spectrum is an unlicensed spectrum, and the first stage uplink scheduling grant information is sent to the user equipment by using Downlink Control Information (DCI) of the first downlink subframe.
  • DCI Downlink Control Information
  • the first indication information in the embodiment of the present invention may be used to multiplex the existing downlink control information format (DCI format), and the user detects the different DCI formats by using a blind detection manner, and adds a new DCI format.
  • DCI format downlink control information format
  • the number of blind detections of user equipment increases, which increases the complexity and power consumption of the user equipment.
  • multiplexing the existing DCI format to carry the first indication information can reduce the blind detection complexity of the UE, and multiplexing the existing DCI format does not need to generate a new DCI format, and the control signaling overhead can be controlled. Lower level.
  • the first indication information may indicate, by means of bit mapping, whether the multiple subframes are scheduled, that is, the first indication information includes a plurality of character bits, where the multiple character bits are used to indicate multiple subframes. Whether the frame is scheduled, one character corresponds to one subframe, wherein the first character is used to indicate that the corresponding subframe is scheduled, and the second character is used to indicate that the corresponding subframe is not scheduled. For example, the corresponding bit can be indicated by the bit “1”. The subframe is scheduled, and the bit "0" indicates that the corresponding subframe is not scheduled.
  • the multiple character bits may be represented by setting redundant bits of the preset information field in the DCI and/or a preset idle information field.
  • the preset idle information field includes at least one of a redundancy version (RV) domain, a channel status indication (CSI) request domain, and a sounding reference signal (SRS) request domain.
  • RV redundancy version
  • CSI channel status indication
  • SRS sounding reference signal
  • a plurality of uplink subframe numbers to be scheduled are represented by using a bit mapping manner, wherein a subframe corresponding to a bit set to "1" is a The scheduled subframe.
  • the 4 bit information field is set to 1011, that is, the scheduled uplink subframe sequence number is 1st, 3rd, and 4th subframes after receiving the first stage uplink scheduling grant information for 4ms.
  • the first indication information includes a starting subframe identifier of the consecutive consecutive multiple subframes and a total length of the multiple subframes.
  • the total length of the multiple subframes may be Is the number of subframes of the multiple subframes, or the total duration of the multiple subframes.
  • the starting subframe identifier and the total length of the multiple subframes may be represented by setting redundant bits of the preset information field in the DCI and/or a preset idle information field.
  • the preset idle information field includes at least one of an RV domain, a CSI request domain, and an SRS request domain.
  • a frame structure includes 10 subframes, and 10 subframes in the frame structure are numbered 1, 2, 3, 4...10 according to chronological order, and if it is necessary to continuously schedule the 4th subframe to the 6th subframe,
  • the first indication information may include a starting subframe identifier 4 and the number of the scheduled plurality of subframes 3.
  • the first indication information includes a starting subframe identifier and an ending subframe identifier of the consecutive consecutive subframes, and optionally, a frame structure is unique for each subframe. Assign a subframe identifier, such as a subframe number.
  • the starting subframe identifier and the ending subframe identifier of the multiple subframes may be indicated by setting redundant bits of the preset information field in the DCI and/or a preset idle information field.
  • the preset idle information field includes at least one of an RV domain, a CSI request domain, and an SRS request domain.
  • a frame structure includes 10 subframes, and 10 subframes in the frame structure are respectively numbered 1, 2, 3, 4...10 according to chronological order. If it is necessary to continuously schedule the 4th subframe to the 6th subframe, An indication information may include an identification of the 4th subframe and an identification of the 6th subframe.
  • the transceiver unit 201 is configured to send the first-stage uplink scheduling grant information to the user equipment by using the first downlink subframe.
  • the first-stage uplink scheduling grant information may be sent through a downlink subframe of the licensed spectrum (that is, the first spectrum), or may be sent by using a downlink subframe of the unlicensed spectrum (that is, the second spectrum).
  • the downlink subframe transmission of the licensed spectrum may be adopted.
  • the generating unit 200 is further configured to generate second phase uplink scheduling grant information, where the second phase uplink scheduling grant information is used to indicate that the user equipment is located before generating the first phase uplink scheduling grant information. Determining, by the second spectrum, second indication information of uplink multi-subframe scheduling;
  • the transceiver unit 201 is further configured to send the second phase uplink scheduling grant information to the user equipment by using a second downlink subframe.
  • the base station sends the second-stage uplink scheduling grant information to the user equipment by using the second downlink subframe, in order to perform the uplink multi-subframe scheduling on the second spectrum to the user equipment, where the second-stage uplink scheduling grant is permitted.
  • the information includes second indication information for indicating uplink multi-subframe scheduling.
  • the DCI of the first subframe is parsed according to the preset encapsulation format of the multi-subframe scheduling, and the plurality of uplink subframe identifiers are obtained, so that the uplink data is sent on the multiple uplink subframes.
  • the second indication information is in the downlink control information DCI of the second downlink subframe.
  • the preset idle information domain bearer; or the second indication information is carried by the redundant bit of the preset information field in the downlink control information DCI of the second downlink subframe.
  • the preset idle information field includes at least one of an RV domain, a CSI request domain, and an SRS request domain.
  • the redundant bits of the preset information field in the DCI are set to redundant values (that is, values that are not defined in the original system/or in some It is not used in the specific scenario) to indicate that this is a special control information for uplink multi-subframe scheduling. For example, including but not limited to: setting the 2-bit information field in the new data indication (NDI) field to 00 (in the original system, only the 10, 01, 11 in the information field was given meaning, but not The meaning is assigned to 00), and the uplink multi-subframe scheduling is indicated by the redundant bit.
  • NDI new data indication
  • the second scheduling grant information may be sent through a downlink subframe of the licensed spectrum (ie, the first spectrum), or may be sent by using a downlink subframe of the unlicensed spectrum (ie, the second spectrum).
  • the downlink subframe transmission of the licensed spectrum may be adopted.
  • the user equipment receives the first-stage uplink scheduling grant information that is sent by the base station by using the first downlink subframe, where the first-stage uplink scheduling grant information includes multiple uplinks for indicating the scheduled second spectrum.
  • the first indication information of the identifier of the subframe, where the second spectrum is an unlicensed spectrum determining, according to the first indication information, the scheduled multiple uplink subframes, and performing uplink on the determined multiple uplink subframes Data is sent.
  • the indication information included in the uplink scheduling grant information of the downlink subframe indicates the identifier of the scheduled multiple uplink subframes, thereby saving signaling overhead.
  • FIG. 8 is a schematic structural diagram of still another data communication apparatus according to an embodiment of the present invention.
  • the data communication apparatus according to the embodiment of the present invention may be applied to a base station side, where the data communication apparatus includes a transceiver 2010, a memory 2020, and a processor. 2030.
  • the processor 2030 controls the operation of the data communication device 2000.
  • the memory 2020 can include read only memory and random access memory and provides instructions and data to the processor 2030, which can be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array, or other programmable logic. Device. A portion of the memory 2020 may also include non-volatile line random access memory (NVRAM).
  • NVRAM non-volatile line random access memory
  • the various components of the data communication device 2000 are coupled together by a bus 2040, wherein the bus system 2040 includes a power bus, a control bus, and Status signal bus. However, for clarity of description, various buses are labeled as bus system 2040 in the figure. It should be noted that the above description of the structure of the data communication device can be applied to the subsequent embodiments.
  • the processor 2030 is configured to generate first stage uplink scheduling grant information, where the first stage uplink scheduling grant information includes first indication information for indicating an identifier of multiple uplink subframes on the second spectrum scheduled by the user equipment.
  • the second spectrum is an unlicensed spectrum;
  • the transceiver 2010 is configured to send the first stage uplink scheduling grant information to the user equipment by using a first downlink subframe.
  • the processor 2030 is further configured to generate the second phase uplink scheduling grant information, where the second phase uplink scheduling grant information is used to indicate that the user equipment performs uplink multi-subframe scheduling on the second frequency spectrum.
  • Second indication information is used to indicate that the user equipment performs uplink multi-subframe scheduling on the second frequency spectrum.
  • the transceiver 2010 is further configured to send the second phase uplink scheduling grant information to the user equipment by using a second downlink subframe.
  • the first stage uplink scheduling grant information is sent by using the first downlink subframe of the first spectrum
  • the second stage uplink scheduling grant information is sent through the second downlink subframe of the first spectrum.
  • the user equipment receives the first-stage uplink scheduling grant information that is sent by the base station by using the first downlink subframe, where the first-stage uplink scheduling grant information includes multiple uplinks for indicating the scheduled second spectrum.
  • the first indication information of the identifier of the subframe, where the second spectrum is an unlicensed spectrum determining, according to the first indication information, the scheduled multiple uplink subframes, and performing uplink on the determined multiple uplink subframes Data is sent.
  • the indication information included in the uplink scheduling grant information of the downlink subframe indicates the identifier of the scheduled multiple uplink subframes, thereby saving signaling overhead.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).
  • the modules in the terminal in the embodiment of the present invention may be combined, divided, and deleted according to actual needs.
  • the components of the microcontroller and the like in the embodiments of the present invention may be implemented by a general-purpose integrated circuit, such as a CPU, or an Application Specific Integrated Circuit (ASIC).
  • a general-purpose integrated circuit such as a CPU, or an Application Specific Integrated Circuit (ASIC).
  • ASIC Application Specific Integrated Circuit

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Abstract

本发明实施例公开了一种数据通信方法及装置，该数据传输方法包括：接收基站通过第一下行子帧发送的第一阶段上行调度准许信息，所述第一阶段上行调度准许信息包含用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱；根据所述第一指示信息，确定被调度的所述多个上行子帧，并在所述多个上行子帧上进行上行数据发送。采用本发明实施例，可以通过指示被调度的多个上行子帧的标识实现多个上行子帧的调度，节省信令开销。

Description

一种数据通信方法及装置 技术领域
本发明涉及移动通信网络技术领域，尤其涉及一种数据通信方法及装置。
背景技术
为引入更多的频谱资源以满足不断提升的网络性能要求，从3GPP Release13开始，设立了授权载波辅助接入(Licensed-Assisted Access to Unlicensed Spectrum，LAA)的研究项目，研究如何在授权频谱，即长期演进(Long Term Evolution，LTE)系统的频谱的辅助下使用非授权的频谱资源(如5GHz的频谱)。在LAA系统中，由于引入了非授权频谱资源，因此LAA系统需在LTE系统的基础上遵循非授权频谱已有的机制。目前各国对于非授权频谱的使用分别进行了规定，其中一些国家和地区规定了在非授权频段上需使用对话前监听(listen before talk，LBT)机制，即先听后说机制,在进行数据发送之前，要先监听信道的状态是否空闲，如果信道空闲则进行数据信息和控制信息的发送，否则不进行传输。因此，相比较之前的LTE系统，LAA系统中的非授权频段中的上下行子帧分布会基于业务需求和LBT的结果等来进行确定，因此LAA系统中的上下行子帧分布也会与LTE系统有所不同。
在目前的LTE系统中，上行数据传输是通过下行控制信道上传输的上行准许信息进行调度的，即基站在某下行子帧的下行控制信道上发送上行准许信息来调度用户设备(User Equipment，UE)的上行数据发送，之后UE在后续的某上行子帧上进行上行数据发送。由于LTE系统中，一般情况下下行子帧数量要多于上行子帧数量，为了信令负载分布更加均匀，一般采用一个下行子帧调度一个上行子帧的方式。
而在LAA系统中，由于上下行子帧分布产生变化，例如在上行业务需求较多的时候，就可能产生上行子帧数多于下行子帧数的情况，此时无法再使用LTE系统中一个下行子帧调度一个上行子帧的调度方式。因此，通过目前的3GPP讨论，确定在LAA系统中使用多子帧调度的方式来进行上行调度，即一个下行子帧调度多个上行子帧。目前还未提出在LAA系统中如何进行多子帧调 度的表示方法。
发明内容
本发明实施例提供一种数据通信方法及装置，可以通过指示被调度的多个上行子帧的标识实现多个上行子帧的调度，节省信令开销。
本发明第一方面提供一种数据通信方法，包括：
接收基站通过第一下行子帧发送的第一阶段上行调度准许信息，所述第一阶段上行调度准许信息包含用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱；
根据所述第一指示信息，确定被调度的所述多个上行子帧，并在所述多个上行子帧上进行上行数据发送。
本发明第二方面提供一种数据通信方法，包括：
生成第一阶段上行调度准许信息，所述第一阶段上行调度准许信息包含用于指示用户设备被调度的第二频谱上的多个上行子帧的标识的第一指示信息，所述第二频谱为非授权频谱；
通过第一下行子帧将所述第一阶段上行调度准许信息发送至所述用户设备。
本发明第三方面提供一种数据通信装置，应用于用户设备，包括：
收发单元，用于接收基站通过第一下行子帧发送的第一阶段上行调度准许信息，所述第一阶段上行调度准许信息包含用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱；
处理单元，用于根据所述第一指示信息，确定被调度的所述多个上行子帧；
所述收发单元还用于在所述被调度的多个上行子帧上进行上行数据发送。
本发明第四方面提供一种数据通信装置，应用于基站，包括：
生成单元，用于生成第一阶段上行调度准许信息，所述第一阶段上行调度准许信息包含用于指示用户设备被调度的第二频谱上的多个上行子帧的标识的第一指示信息，所述第二频谱为非授权频谱；
收发单元，用于通过第一下行子帧将所述第一阶段上行调度准许信息发送至所述用户设备。
本发明实施例中，用户设备接收基站通过第一下行子帧发送的第一阶段上行调度准许信息，该第一阶段上行调度准许信息包含用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱，根据第一指示信息，确定被调度的多个上行子帧，并在所确定的多个上行子帧上进行上行数据发送。这种方式通过下行子帧的上行调度准许信息所包含的指示信息指示被调度的多个上行子帧的标识，节省信令开销。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的一种系统架构图；
图2为本发明实施例提供的一种数据通信方法的流程图；
图3为本发明实施例提供的另一种数据通信方法的流程图；
图4为本发明实施例提供的又一种数据通信方法的流程图；
图5为本发明实施例提供的一种数据通信装置的结构示意图；
图6为本发明实施例提供的另一种数据通信装置的结构示意图；
图7为本发明实施例提供的又一种数据通信装置的结构示意图；
图8为本发明实施例提供的又一种数据通信装置的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明的说明书和权利要求书以及说明书附图中的术语“第一”、“第二”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。例如包含了一系列步 骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选的还包括没有列出的步骤或单元，或可选的还包括对这些过程、方法、产品或设备固有的其他步骤或单元。
需要说明的是，在本发明实施例中使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本发明。在本发明实施例和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也可能包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
需要说明的是，在没有明示的特别说明的情况下，本发明各实施例中的各项技术特征可视为能够进行相互组合或者结合，只要该种组合或者结合不是因为技术的原因而无法实施。为了较为充分的说明本发明，一些示例性的，可选的，或者优选的特征在本发明各实施例中与其他技术特征结合在一起进行描述，但这种结合不是必须的，而应该理解该示例性的，可选的，或者优选的特征与其他的技术特征都是彼此可分离的或者独立的，只要该种可分离或者独立不是因为技术的原因而无法实施。方法实施例中的技术特征的一些功能性描述可以理解为执行该功能、方法或者步骤，装置实施例中的技术特征的一些功能性描述可以理解为使用该种装置来执行该功能、方法或者步骤。
本文描述的技术可以用于各种无线通信网络，诸如码分多址((Code Division Multiple Access，CDMA)网络、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Division Multiple Access，OFDMA)网络、单载波频分多址(Single-carrier Frequency-Division Multiple Access，SC-FDMA)以及其它网络。术语“网络”和“系统”通常交换使用。CDMA网络可以实现诸如通用陆地无线接入(Universal Telecommunication Radio Access，UTRA)、电信工业协会(Telecommunications Industry Association，TIA)的之类的无线技术。UTRA技术包括宽带CDMA(WCDMA)和CDMA的其它变型。技术包括来自电子工业协会(Electronic Industries Association，EIA)和TIA的IS-2000、IS-95和IS-856标准。TDMA网络可以实现诸如全球移动通信系统(Global System for Mobile Communication，GSM)之类的无线技术。OFDMA系统可以实现诸如演进型 UTRA(E-UTRA)、超移动宽带(Ultra Mobile Broadband，UMB)、IEEE802.11(无线保真，Wi-Fi)、IEEE802.16(全球微波互联接入—Worldwide Interoperability for Microwave Access，WiMAX)、IEEE802.20、Flash-OFDMA之类的无线技术。UTRA和E-UTRA技术是通用移动电信系统(UMTS)的一部分。3GPP长期演进(Long Term Evolution，LTE)和高级LTE(LTE-A)是使用E-UTRA的UMTS的较新版本。在来自名为“第三代合作伙伴计划”(3GPP)的组织的文档中描述了UTRA、E-UTRA、UMTS、LTE、LTE-A和GSM。在来自称为“第三代合作伙伴计划2”(3GPP2)的组织的文档中描述了和UMB。本文中所描述的技术可以用于上面所提到的无线网络和无线接入技术，以及其它无线网络和无线接入技术。为了清楚起见，在下面该技术的某些方面是针对LTE或LTE-A(或者总称为“LTE/-A”)进行描述的，并且在下面的许多描述中使用这种LTE/-A术语。
需要说明的是，无线通信网络可以包括能够支持多个用户设备的通信的多个基站。用户设备可以通过下行链路和上行链路与基站进行通信。下行链路(或前向链路)是指从基站到用户设备的通信链路，而上行链路(或反向链路)是指从用户设备到基站的通信链路。
用户设备(例如，蜂窝电话或者智能电话)可以利用无线通信系统来发射和接收数据以用于双路通信。用户设备可以包括用于数据发射的发射机以及用于数据接收的接收机。对于数据发射，发射机可以利用数据对发射本地振荡器(Local Oscillator，LO)信号进行调制以获得经调制的射频(Radio Frequency，RF)信号，对经调制的RF信号进行放大以获得具有恰当发射功率级别的输出RF信号，并且经由天线将输出RF信号发射给基站。对于数据接收，接收机可以经由天线来获得所接收的RF信号，放大并利用接收LO信号将所接收的RF信号下变频，并且处理经下变频的信号以恢复由基站发送的数据。
用户设备可以支持与不同无线电接入技术(Radio Access Technology，RAT)的多个无线系统的通信(例如LTE/TE-A和NR)。每个无线系统可能具有某些特性和要求，能够高效地支持利用不同RAT的无线系统的同时通信。用户设备可以包括移动台、终端、接入终端、订户单元、站点，等等。用户设备还可以是蜂窝电话、智能电话、平板计算机、无线调制解调器、个人数字助 理(Personal Digital Assistant，PDA)、手持式设备、膝上型计算机、智能本、上网本、无绳电话、无线本地回路(wireless local loop，WLL)站点、蓝牙设备，等等。用户设备可以能够与无线系统进行通信，还可以能够从广播站、一个或多个全球导航卫星系统(Global Navigation Satellite System，GNSS)中的卫星等接收信号。用户设备可以支持用于无线通信的一个或多个RAT，诸如GSM、WCDMA、cdma2000、LTE/LTE-A、802.11，等等。术语“无线电接入技术”、“RAT”、“无线电技术”、“空中接口”和“标准”经常可互换地被使用。
用户设备可以支持载波聚合，载波聚合是在多个载波上的操作。载波聚合还可以被称为多载波操作。载波可以指代被使用用于通信的一个范围的频率并且可以与某些特性相关联。例如，载波可以与描述该载波上的操作的系统信息和/或控制信息相关联。载波还可以被称为分量载波(CC)、频率信道、小区，等等。一个频带可以包括一个或多个载波。示例性的，每个载波可以覆盖多至20MHz。用户设备可以被配置具有一个或两个频带中的多至5个载波。用户设备可以包括多个接收机，以在不同频率处同时接收多个下行链路信号。这些多个下行链路信号可以由一个或多个基站在用于载波聚合的不同频率处在多个载波上发送。每个接收机可以接收在一个或多个载波上发送给用户设备的一个或多个下行链路信号。在载波聚合场景中操作的UE被配置为在相同的载波上聚合多个载波的某些功能，例如控制和反馈功能，该载波可以被称为主载波或主分量载波(Primary Component Carrier,简称PCC)。依靠主载波支持的其余载波被称为相关联的辅载波或辅分量载波(Secondary Component Carrier,简称SCC)。主载波是由主小区发送的。辅载波是由辅小区发送的。在一些实施例中，可以有多个主载波。另外，可以在不影响UE的基本操作的情况下添加或移除辅载波。在载波聚合中，可以将控制功能从至少两个载波聚合到一个载波上以形成主载波和一个或多个相关联的辅载波。可以针对主载波和每个辅载波建立通信链路。随后，可以基于主载波来控制通信。在载波聚合中，用户设备还可以向服务基站发送用于指示所支持的频带和载波聚合带宽类别的UE能力信息消息。根据UE能力，服务基站可以使用RRC连接重配置过程来配置UE。RRC连接重配置过程允许服务基站添加和移除在辅载波上进行发送的服务基 站的辅小区(当前最多四个辅小区)，以及修改在主载波上进行发送的服务基站的主小区。在切换过程中，服务基站可以使用RRC连接重配置过程来添加和移除目标主小区处的辅小区。服务基站可以使用激活/去激活MAC控制元素来激活或去激活辅小区的数据传输。当前，UE监测来自主小区的主信息块(MIB)和系统信息块SIB。主小区负责向UE发送辅小区的MIB和一些SIB。主小区通过无线资源配置公共辅小区(RadioResourceConfigCommonSCell)信息元素和无线资源专用辅小区(RadioResourceDedicatedSCell)信息元素来发送辅小区MIB和一些SIB。在本发明的一些具体实施例中，主载波或主分量载波可以被配置为第一频谱，第一频谱可以为授权频谱；相关联的辅载波或辅分量载波可以被配置为第二频谱，第二频谱为非授权频谱。
需要说明的是，在LTE/LTE-A系统中，上/下行载波分别采用单载波频分多址(Single-carrier Frequency-Division Multiple Access，SC-FDMA)/OFDM以及循环前缀(Cyclic Prefix，CP)。在5G标准中，示例性的，可以对上下行载波进行统一，即上行链路与下行链路均采用OFDM以及CP。另外示例性的，5G中的RB可以做如下配置，1个资源块包含12个子载波，子载波间隔以15kHz为基准，子载波间隔可以是15kHz的N(N＝2^n)倍，或者也可以固定为子载波间隔为75kHz。具体而言，传统LTE小区工作在频段上的带宽是由RB构成，RB分别具有固定的子载波间隔和符号长度，比如正常CP下，频域上的大小为180KHz(即：12个15KHz子载波间隔)，时域上，包括7个符号，一个符号的长度约等于71.5us。而在下一代5G移动通信技术中(例如NR系统中)，不同子载波可以基于业务类型不再具有固定的子载波间隔和固定的符号长度(可以动态变化)。为区别于传统LTE系统中的RB概念，NR系统新定义了“numerology”(参考数值)的概念，它主要包括子载波间隔、CP长度和TTI长度等。目前，NR系统共定义了三种业务类型，分别是eMBB、URLLC和mMTC，不同业务类型的“numerology”类型也可以不同，意味不同类型的子载波间隔、CP长度或TTI长度可能有所不同。示例性的，可以定义下一代移动通信将会支持最大为100MHz的单载波带宽。一个资源块RB在频域上的大小变为900KHz(即：12个75KHz子载波间隔)，而在时域上支持0.1ms。一个无线帧的长度是10ms，但是由50个子帧构成，每个子帧 的长度为0.2ms。需要说明的是，本文通篇所述的适用于所述NR业务的信号类型，可以是指包括载波间隔、CP长度和TTI长度等相关参数中的至少一种参数的配置。
具体的，本发明实施例应用于可以结合上述所有技术特性的LAA系统中，LAA系统可以是在长期演进(Long Term Evolution，LTE)系统的频谱的辅助下使用非授权的频谱资源(如5GHz的频谱)。需要特别说明的是，下面本发明实施例中对某种具体网络架构进行的描述只是一种示例(例如LTE/LTE-A)，而不应理解为限定。本发明所公开的方法和装置同样可以应用到后续演进的(例如：下一代5G)的网络架构中。
图1所示的是LTE/LTE-A系统的系统架构，其中各网元和接口的描述如下：
移动性管理实体(Mobility Management Entity，MME)/服务网关(Serving GateWay，S-GW)：MME是第三代合作伙伴计划(3GPP，3rd Generation Partnership Project)LTE中的关键控制节点，属于核心网网元，主要负责信令处理部分，即控制面功能，包括接入控制、移动性管理、附着与去附着、会话管理功能以及网关选择等功能。S-GW是3GPP LTE中核心网的重要网元，主要负责用户数据转发的用户面功能，即在MME的控制下进行数据包的路由和转发。
eNB：eNodeB(eNB)可以是与用户设备UE通信的站，并且也可以称为基站、节点B、接入点等。每个eNB可以针对特定的地理区域提供通信覆盖。在3GPP中，术语“小区”根据使用该术语的上下文可以指eNB的这种特定的地理覆盖区域和/或服务于该覆盖区域的eNB子系统的这种特定的地理覆盖区域。eNB主要负责空口侧的无线资源管理、服务质量(QoS，Quality of Service)管理、数据压缩和加密等功能。往核心网侧，eNB主要负责向MME转发控制面信令以及向S-GW转发用户面业务数据。eNB可以针对宏小区、微微小区、毫微微小区和/或其它类型的小区提供通信覆盖。宏小区通常覆盖相对较大的地理区域(例如，半径为几千米的范围)，并且可以允许由具有与网络提供商的服务签约的UE无限制的接入。微微小区通常覆盖相对较小的地理区域，并且可以允许由具有与网络提供商的服务签约的UE无限制的接入。毫微微小区通 常也覆盖相对较小的地理区域(例如，家庭)，并且除了无限制的接入以外还可以提供由具有与毫微微小区关联的UE的受限的接入(例如，封闭用户组(Closed Subscriber Group，CSG)中的UE、家庭中的用户的UE等)。宏小区的eNB可被称为宏eNB。微微小区的eNB可被称为微微eNB。以及，毫微微小区的eNB可被称为毫微微eNB或家庭eNB。
UE：UE是LTE中通过eNB接入网络侧的设备，例如可以是手持终端、笔记本电脑或是其他可以接入网络的设备。当UE需要在特定信道传输上行数据时(例如，物理上行共享信道，英文：Physical Uplink Shared Channel，简称：PUSCH)，上述UE需要告知eNB，上述UE有上行数据需要传输，eNB得知UE需要传输上下数据之后，针对上述UE进行上行数据调度。
S1接口：是eNB与核心网之间的标准接口。其中eNB通过S1-MME接口与MME连接，用于控制信令的传输；eNB通过S1-U接口与S-GW连接，用于用户数据的传输。其中S1-MME接口和S1-U接口统称为S1接口。
X2接口：eNB与eNB之间的标准接口，用于实现基站之间的互通。
Uu接口：Uu接口是UE与基站eNB之间的无线接口，UE通过Uu接口接入到LTE网络。
本发明实施例的数据通信方法主要应用于UE与基站eNB的Uu接口之间交互的信息，eNB向UE发送第一阶段上行调度准许信息，该第一阶段上行调度准许信息中包含用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱，UE通过解析该第一阶段上行调度准许信息，确定被调度的多个上行子帧，并在该所确定的多个上行子帧向eNB发送上行数据。
下面将结合附图2-附图3，对本发明实施例提供的数据通信方法进行介绍和说明。
请参照图2，是本发明实施例提供的一种数据通信方法的流程示意图；本实施例主要从用户设备侧进行描述，如图2所示，所述数据通信方法包括：
S100，接收基站通过第一下行子帧发送的第一阶段上行调度准许信息，所述第一阶段上行调度准许信息包含用于指示被调度的第二频谱上的多个上行 子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱；
本发明实施例中，LAA系统中的非授权频段中的上下行子帧分布会基于业务需求和LBT的结果等来进行确定，例如在上行业务需求较多的时候，就可能产生上行子帧数多于下行子帧数的情况，这样就需要一个下行子帧调度多个上行子帧。
基站侧确定要进行调度的多个上行子帧，并在LAA系统中生成第一阶段上行调度准许信息，该第一阶段上行调度准许信息包含用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱，该第一阶段上行调度准许信息通过第一下行子帧的下行控制信息(Downlink Control Information，DCI)向用户设备侧发送。用户设备接收基站通过第一下行子帧发送的第一阶段上行调度准许信息。
需要说明的是，该第一阶段上行调度准许信息可以是通过授权频谱(即第一频谱)的下行子帧发送，也可以是通过非授权频谱(即第二频谱)的下行子帧发送。优选的，为了保证第一阶段上行调度准许信息传输的稳定性，可以采用授权频谱的下行子帧发送。
可选的，本发明实施例的第一指示信息可以复用已有的下行控制信息格式(DCI format)，用户对于不同的DCI format是通过盲检的方式进行检测的，增加新的DCI format就意味着用户设备盲检次数的增加，这会提升用户设备的实现复杂度和耗电量。本发明实施例复用已有的DCI format来承载第一指示信息可以降低UE盲检测复杂度，并且复用已有的DCI format不需要产生出新的DCI format，可以将控制信令开销控制在较低水平。
作为一种可选的实施方式，该第一指示信息可以通过比特映射的方式指示多个子帧是否被调度，即是第一指示信息包括多个字符比特，该多个字符比特用于指示多个子帧是否被调度，一个字符对应一个子帧，其中第一字符用于指示对应的子帧被调度，第二字符用于指示对应的子帧未被调度，比如，可以通过比特“1”指示对应的子帧被调度，而通过比特“0”指示对应的子帧未被调度。
具体可选的，可以通过设置DCI中预设信息域的冗余比特和/或预设空闲信息域表示该多个字符比特。预设空闲信息域包括冗余版本(Redundancy  version，RV)域、信道状态指示(Channel status indication，CSI)请求域、探测参考信号(Sounding reference signal，SRS)请求域中的至少一个。
举例来说可以通过联合使用3bit的CSI request域以及1bit的SRS request采用比特映射的方式来表示被调度的多个上行子帧序号，其中置为“1”的比特位对应的子帧即为被调度的子帧。比如将这4bit的信息域设置为1011，即为调度的上行子帧序号为收到第一阶段上行调度准许信息4ms后的第1,3,4个子帧被调度。
作为另一种可选的实施方式，该第一指示信息包括被调度的连续多个子帧的起始子帧标识和该多个子帧的总长度，可选的，该多个子帧的总长度可以是该多个子帧的子帧个数，或者该多个子帧的总的时长。
具体可选的，可以通过设置DCI中预设信息域的冗余比特和/或预设空闲信息域表示该起始子帧标识以及该多个子帧的总长度。预设空闲信息域包括RV域、CSI请求域、SRS请求域中的至少一个。
比如，一个帧结构中包括10个子帧，该帧结构中10个子帧依据时间顺序分别编号为1、2、3、4…10，若需要连续调度第4个子帧到第6个子帧，则第一指示信息可以包括起始子帧标识4和该被调度的多个子帧数量3。
作为又一种可选的实施方式，该第一指示信息包括被调度的连续多个子帧的起始子帧标识和结束子帧标识，可选的，一个帧结构中，为每一个子帧唯一分配一个子帧标识，比如可以是子帧序号。
具体可选的，可以通过设置DCI中预设信息域的冗余比特和/或预设空闲信息域表示该起始子帧标识以及该多个子帧的结束子帧标识。预设空闲信息域包括RV域、CSI请求域、SRS请求域中的至少一个。
比如，一个帧结构中包括10个子帧，该帧结构中10个子帧依据时间顺序分别编号为1、2、3、4…10，若需要连续调度第4个子帧到第6个子帧，则第一指示信息可以包括第4个子帧的标识和第6个子帧的标识。
S101，根据所述第一指示信息，确定被调度的所述多个上行子帧，并在所述多个上行子帧上进行上行数据发送。
本发明实施例中，用户设备侧收到基站通过第一下行子帧下发的上行调度准许信息，解析该上行调度准许信息中的第一指示信息，确定被调度的多个上 行子帧，从而在所确定的多个上行子帧上进行上行数据发送。
具体可选的，通过识别第一下行子帧DCI中预设信息域的冗余比特和/或预设空闲信息域，获知被调度的多个子帧标识，从而进行上行数据发送。
本发明实施例中，用户设备接收基站通过第一下行子帧发送的第一阶段上行调度准许信息，该第一阶段上行调度准许信息包含用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱，根据第一指示信息，确定被调度的多个上行子帧，并在所确定的多个上行子帧上进行上行数据发送。这种方式通过下行子帧的上行调度准许信息所包含的指示信息指示被调度的多个上行子帧的标识，节省信令开销。
请参照图3，为本发明实施例提供的另一种数据通信方法的流程图，本实施例主要从用户设备侧进行描述，如图3所示，本实施例的数据通信方法包括：
S200，接收基站通过第二下行子帧发送的第二阶段上行调度准许信息，所述第二阶段上行调度准许信息包含用于指示在所述第二频谱上进行上行多子帧调度的第二指示信息。
本发明实施例中，基站为了向用户设备指示在第二频谱上进行上行多子帧调度，则通过第二下行子帧向用户设备发送第二阶段上行调度准许信息，该第二阶段上行调度准许信息包含用于指示进行上行多子帧调度的第二指示信息。用户设备接收该第二下行子帧，通过解析该第二下行子帧的第二阶段上行调度准许信息中的第二指示信息，获知为多子帧调度，从而在接下来接收的第一下行子帧中，按照预设的多子帧调度的封装格式去解析第一子帧的DCI，获得被调度的多个上行子帧标识，从而在该多个上行子帧上发送上行数据。
可选的，所述第二指示信息由所述第二下行子帧的下行控制信息DCI中的预设空闲信息域承载；或者，所述第二指示信息由所述第二下行子帧的下行控制信息DCI中预设信息域的冗余比特承载。其中，预设空闲信息域包括RV域、CSI请求域、SRS请求域中的至少一个。
比如在第二下行子帧的第二阶段上行调度准许信息中，将DCI中的预设信息域的冗余比特置为冗余值(即在原有系统中没有被定义的值/或者在某些具体场景下没有被使用)，以表示这是一个进行上行多子帧调度的特殊的控制 信息。例如，包括但不限于：将新数据指示(New data indicates，NDI)域中的2bit信息域置为00(原有系统中仅将该信息域中的10，01,11赋予了含义，而未对00赋予含义)，通过该冗余比特指示进行上行多子帧调度。
需要说明的是，该第二调度准许信息可以是通过授权频谱(即第一频谱)的下行子帧发送，也可以是通过非授权频谱(即第二频谱)的下行子帧发送。优选的，为了保证第二阶段上行调度准许信息传输的稳定性，可以采用授权频谱的下行子帧发送。
S201，接收基站通过第一下行子帧发送的第一阶段上行调度准许信息，所述第一阶段上行调度准许信息包含用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱；
S202，根据所述第一指示信息，确定被调度的所述多个上行子帧，并在所述多个上行子帧上进行上行数据发送。
本发明实施例步骤S201～S202请参照图2的实施例步骤S100～S101，在此不再赘述。
需要特别说明的是，本发明实施例所涉及的上行数据传输对应的上行调度准许信息的发送可以分为一个阶段发送(一次性发送)或者两个阶段发送(分成两次发送)。如果是采用一个阶段发送的情形下(即只存在第一阶段)，用户设备可以接收基站通过第一下行子帧发送的第一阶段上行调度准许信息，该第一阶段上行调度准许信息包含用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱，以及根据第一指示信息，确定被调度的多个上行子帧，并在所确定的多个上行子帧上进行上行数据发送。如果是采用两个阶段发送的情形下(即不但存在第一阶段，还存在第二阶段)，则第二阶段上行调度准许信息可以为一个公共的、半静态的准许信息，可包括用于指示在所述第二频谱上进行上行多子帧调度的第二指示信息，还可以包括资源块(Resource Block，简称RB)分配信息，MCS等级信息等；第一阶段上行调度准许信息则可以为一个具体的上行数据传输的调度信息，例如可以包括用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，可触发PUSCH信道在某个子帧上进行发送。本实施例所说的第一阶段和第二阶段只是用来表示该信息的发送时间先后不相同，第一阶段并不表示在 时间顺序上先于第二阶段。第二阶段上行调度准许信息的发送时间上可以在第一阶段上行调度准许信息之前。采用一个阶段进行上行调度的方式相对较为简单，但为了尽量避免由于LBT失败而导致的调度失败情况的出现，采用两阶段上行准许信息的方式来进行上行调度的方式在提高调度效率方面被证明是有益的。
本发明实施例中，用户设备接收基站通过第一下行子帧发送的第一阶段上行调度准许信息，该第一阶段上行调度准许信息包含用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱，根据第一指示信息，确定被调度的多个上行子帧，并在所确定的多个上行子帧上进行上行数据发送。这种方式通过下行子帧的上行调度准许信息所包含的指示信息指示被调度的多个上行子帧的标识，节省信令开销。
请参照图4，为本发明实施例提供的又一种数据通信方法的流程图，本实施例主要从基站侧进行描述，如图4所示，本发明实施例的数据通信方法包括以下步骤：
S300，生成第一阶段上行调度准许信息，所述第一阶段上行调度准许信息包含用于指示用户设备被调度的第二频谱上的多个上行子帧的标识的第一指示信息，所述第二频谱为非授权频谱；
本发明实施例中，LAA系统中的非授权频段中的上下行子帧分布会基于业务需求和LBT的结果等来进行确定，例如在上行业务需求较多的时候，就可能产生上行子帧数多于下行子帧数的情况，这样就需要一个下行子帧调度多个上行子帧。
基站侧确定要进行调度的多个上行子帧，并在LAA系统中生成第一阶段上行调度准许信息，该第一阶段上行调度准许信息包含用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱，该第一阶段上行调度准许信息通过第一下行子帧的下行控制信息(Downlink Control Information，DCI)向用户设备侧发送。用户设备接收基站通过第一下行子帧发送的第一阶段上行调度准许信息。
可选的，本发明实施例的第一指示信息可以复用已有的下行控制信息格式 (DCI format)，用户对于不同的DCI format是通过盲检的方式进行检测的，增加新的DCI format就意味着用户设备盲检次数的增加，这会提升用户设备的实现复杂度和耗电量。本发明实施例复用已有的DCI format来承载第一指示信息可以降低UE盲检测复杂度，并且复用已有的DCI format不需要产生出新的DCI format，可以将控制信令开销控制在较低水平。
作为一种可选的实施方式，该第一指示信息可以通过比特映射的方式指示多个子帧是否被调度，即是第一指示信息包括多个字符比特，该多个字符比特用于指示多个子帧是否被调度，一个字符对应一个子帧，其中第一字符用于指示对应的子帧被调度，第二字符用于指示对应的子帧未被调度，比如，可以通过比特“1”指示对应的子帧被调度，而通过比特“0”指示对应的子帧未被调度。
具体可选的，可以通过设置DCI中预设信息域的冗余比特和/或预设空闲信息域表示该多个字符比特。预设空闲信息域包括冗余版本(Redundancy version，RV)域、信道状态指示(Channel status indication，CSI)请求域、探测参考信号(Sounding reference signal，SRS)请求域中的至少一个。
举例来说可以通过联合使用3bit的CSI request域以及1bit的SRS request采用比特映射的方式来表示被调度的多个上行子帧序号，其中置为“1”的比特位对应的子帧即为被调度的子帧。比如将这4bit的信息域设置为1011，即为调度的上行子帧序号为收到第一阶段上行调度准许信息4ms后的第1,3,4个子帧被调度。
作为另一种可选的实施方式，该第一指示信息包括被调度的连续多个子帧的起始子帧标识和该多个子帧的总长度，可选的，该多个子帧的总长度可以是该多个子帧的子帧个数，或者该多个子帧的总的时长。
具体可选的，可以通过设置DCI中预设信息域的冗余比特和/或预设空闲信息域表示该起始子帧标识以及该多个子帧的总长度。预设空闲信息域包括RV域、CSI请求域、SRS请求域中的至少一个。
比如，一个帧结构中包括10个子帧，该帧结构中10个子帧依据时间顺序分别编号为1、2、3、4…10，若需要连续调度第4个子帧到第6个子帧，则第一指示信息可以包括起始子帧标识4和该被调度的多个子帧数量3。
作为又一种可选的实施方式，该第一指示信息包括被调度的连续多个子帧的起始子帧标识和结束子帧标识，可选的，一个帧结构中，为每一个子帧唯一分配一个子帧标识，比如可以是子帧序号。
具体可选的，可以通过设置DCI中预设信息域的冗余比特和/或预设空闲信息域表示该起始子帧标识以及该多个子帧的结束子帧标识。预设空闲信息域包括RV域、CSI请求域、SRS请求域中的至少一个。
比如，一个帧结构中包括10个子帧，该帧结构中10个子帧依据时间顺序分别编号为1、2、3、4…10，若需要连续调度第4个子帧到第6个子帧，则第一指示信息可以包括第4个子帧的标识和第6个子帧的标识。
S301，通过第一下行子帧将所述第一阶段上行调度准许信息发送至所述用户设备。
本发明实施例中，该第一阶段上行调度准许信息可以是通过授权频谱(即第一频谱)的下行子帧发送，也可以是通过非授权频谱(即第二频谱)的下行子帧发送。优选的，为了保证第一阶段上行调度准许信息传输的稳定性，可以采用授权频谱的下行子帧发送。
可选的，所述生成第一阶段上行调度准许信息之前，还包括步骤S302～S303：
S302，生成第二阶段上行调度准许信息，所述第二阶段上行调度准许信息包含用于指示所述用户设备在所述第二频谱上进行上行多子帧调度的第二指示信息；
S303，通过第二下行子帧将所述第二阶段上行调度准许信息发送至所述用户设备。
本发明实施例中，基站为了向用户设备指示在第二频谱上进行上行多子帧调度，则通过第二下行子帧向用户设备发送第二阶段上行调度准许信息，该第二阶段上行调度准许信息包含用于指示进行上行多子帧调度的第二指示信息。用户设备接收该第二下行子帧，通过解析该第二下行子帧的第二阶段上行调度准许信息中的第二指示信息，获知为多子帧调度，从而在接下来接收的第一下行子帧中，按照预设的多子帧调度的封装格式去解析第一子帧的DCI，获得被调度的多个上行子帧标识，从而在该多个上行子帧上发送上行数据。
可选的，所述第二指示信息由所述第二下行子帧的下行控制信息DCI中的预设空闲信息域承载；或者，所述第二指示信息由所述第二下行子帧的下行控制信息DCI中预设信息域的冗余比特承载。其中，预设空闲信息域包括RV域、CSI请求域、SRS请求域中的至少一个。
比如在第二下行子帧的第二阶段上行调度准许信息中，将DCI中的预设信息域的冗余比特置为冗余值(即在原有系统中没有被定义的值/或者在某些具体场景下没有被使用)，以表示这是一个进行上行多子帧调度的特殊的控制信息。例如，包括但不限于：将新数据指示(New data indicates，NDI)域中的2bit信息域置为00(原有系统中仅将该信息域中的10，01,11赋予了含义，而未对00赋予含义)，通过该冗余比特指示进行上行多子帧调度。
需要说明的是，该第二调度准许信息可以是通过授权频谱(即第一频谱)的下行子帧发送，也可以是通过非授权频谱(即第二频谱)的下行子帧发送。优选的，为了保证第二阶段上行调度准许信息传输的稳定性，可以采用授权频谱的下行子帧发送。
本发明实施例中，用户设备接收基站通过第一下行子帧发送的第一阶段上行调度准许信息，该第一阶段上行调度准许信息包含用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱，根据第一指示信息，确定被调度的多个上行子帧，并在所确定的多个上行子帧上进行上行数据发送。这种方式通过下行子帧的上行调度准许信息所包含的指示信息指示被调度的多个上行子帧的标识，节省信令开销。
下面结合附图5至附图8，阐述本发明实施例提供的数据通信装置的具体实现。附图5和附图6所述的数据通信装置可以应用于用户设备侧，附图7-附图8的数据通信装置可以应用于基站侧。
请参照图5，为本发明实施例提供的一种数据通信装置的结构示意图，该数据通信装置可以应用于用户设备，如图1中的任意UE，如图4所示，本实施例所述的一种数据通信装置包括：收发单元100和处理单元101。
收发单元100，用于接收基站通过第一下行子帧发送的第一阶段上行调度准许信息，所述第一阶段上行调度准许信息包含用于指示被调度的第二频谱上 的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱；
本发明实施例中，LAA系统中的非授权频段中的上下行子帧分布会基于业务需求和LBT的结果等来进行确定，例如在上行业务需求较多的时候，就可能产生上行子帧数多于下行子帧数的情况，这样就需要一个下行子帧调度多个上行子帧。
基站侧确定要进行调度的多个上行子帧，并在LAA系统中生成第一阶段上行调度准许信息，该第一阶段上行调度准许信息包含用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱，该第一阶段上行调度准许信息通过第一下行子帧的下行控制信息(Downlink Control Information，DCI)向用户设备侧发送。用户设备接收基站通过第一下行子帧发送的第一阶段上行调度准许信息。
需要说明的是，该第一阶段上行调度准许信息可以是通过授权频谱(即第一频谱)的下行子帧发送，也可以是通过非授权频谱(即第二频谱)的下行子帧发送。优选的，为了保证第一阶段上行调度准许信息传输的稳定性，可以采用授权频谱的下行子帧发送。
可选的，本发明实施例的第一指示信息可以复用已有的下行控制信息格式(DCI format)，用户对于不同的DCI format是通过盲检的方式进行检测的，增加新的DCI format就意味着用户设备盲检次数的增加，这会提升用户设备的实现复杂度和耗电量。本发明实施例复用已有的DCI format来承载第一指示信息可以降低UE盲检测复杂度，并且复用已有的DCI format不需要产生出新的DCI format，可以将控制信令开销控制在较低水平。
作为一种可选的实施方式，该第一指示信息可以通过比特映射的方式指示多个子帧是否被调度，即是第一指示信息包括多个字符比特，该多个字符比特用于指示多个子帧是否被调度，一个字符对应一个子帧，其中第一字符用于指示对应的子帧被调度，第二字符用于指示对应的子帧未被调度，比如，可以通过比特“1”指示对应的子帧被调度，而通过比特“0”指示对应的子帧未被调度。
具体可选的，可以通过设置DCI中预设信息域的冗余比特和/或预设空闲信息域表示该多个字符比特。预设空闲信息域包括冗余版本(Redundancy  version，RV)域、信道状态指示(Channel status indication，CSI)请求域、探测参考信号(Sounding reference signal，SRS)请求域中的至少一个。
举例来说可以通过联合使用3bit的CSI request域以及1bit的SRS request采用比特映射的方式来表示被调度的多个上行子帧序号，其中置为“1”的比特位对应的子帧即为被调度的子帧。比如将这4bit的信息域设置为1011，即为调度的上行子帧序号为收到第一阶段上行调度准许信息4ms后的第1,3,4个子帧被调度。
作为另一种可选的实施方式，该第一指示信息包括被调度的连续多个子帧的起始子帧标识和该多个子帧的总长度，可选的，该多个子帧的总长度可以是该多个子帧的子帧个数，或者该多个子帧的总的时长。
具体可选的，可以通过设置DCI中预设信息域的冗余比特和/或预设空闲信息域表示该起始子帧标识以及该多个子帧的总长度。预设空闲信息域包括RV域、CSI请求域、SRS请求域中的至少一个。
比如，一个帧结构中包括10个子帧，该帧结构中10个子帧依据时间顺序分别编号为1、2、3、4…10，若需要连续调度第4个子帧到第6个子帧，则第一指示信息可以包括起始子帧标识4和该被调度的多个子帧数量3。
作为又一种可选的实施方式，该第一指示信息包括被调度的连续多个子帧的起始子帧标识和结束子帧标识，可选的，一个帧结构中，为每一个子帧唯一分配一个子帧标识，比如可以是子帧序号。
具体可选的，可以通过设置DCI中预设信息域的冗余比特和/或预设空闲信息域表示该起始子帧标识以及该多个子帧的结束子帧标识。预设空闲信息域包括RV域、CSI请求域、SRS请求域中的至少一个。
比如，一个帧结构中包括10个子帧，该帧结构中10个子帧依据时间顺序分别编号为1、2、3、4…10，若需要连续调度第4个子帧到第6个子帧，则第一指示信息可以包括第4个子帧的标识和第6个子帧的标识。
处理单元101，用于根据所述第一指示信息，确定被调度的所述多个上行子帧；
所述收发单元100还用于在所述被调度的多个上行子帧上进行上行数据发送。
本发明实施例中，用户设备侧收到基站通过第一下行子帧下发的上行调度准许信息，解析该上行调度准许信息中的第一指示信息，确定被调度的多个上行子帧，从而在所确定的多个上行子帧上进行上行数据发送。
具体可选的，通过识别第一下行子帧DCI中预设信息域的冗余比特和/或预设空闲信息域，获知被调度的多个子帧标识，从而进行上行数据发送。
进一步可选的，所述收发单元100还用于在接收基站通过第一下行子帧发送的第一阶段上行调度准许信息之前，接收基站通过第二下行子帧发送的第二阶段上行调度准许信息，所述第二阶段上行调度准许信息包含用于指示在第二频谱上进行上行多子帧调度的第二指示信息。
本发明实施例中，基站为了向用户设备指示在第二频谱上进行上行多子帧调度，则通过第二下行子帧向用户设备发送第二阶段上行调度准许信息，该第二阶段上行调度准许信息包含用于指示进行上行多子帧调度的第二指示信息。用户设备接收该第二下行子帧，通过解析该第二下行子帧的第二阶段上行调度准许信息中的第二指示信息，获知为多子帧调度，从而在接下来接收的第一下行子帧中，按照预设的多子帧调度的封装格式去解析第一子帧的DCI，获得被调度的多个上行子帧标识，从而在该多个上行子帧上发送上行数据。
可选的，所述第二指示信息由所述第二下行子帧的下行控制信息DCI中的预设空闲信息域承载；或者，所述第二指示信息由所述第二下行子帧的下行控制信息DCI中预设信息域的冗余比特承载。其中，预设空闲信息域包括RV域、CSI请求域、SRS请求域中的至少一个。
比如在第二下行子帧的第二阶段上行调度准许信息中，将DCI中的预设信息域的冗余比特置为冗余值(即在原有系统中没有被定义的值/或者在某些具体场景下没有被使用)，以表示这是一个进行上行多子帧调度的特殊的控制信息。例如，包括但不限于：将新数据指示(New data indicates，NDI)域中的2bit信息域置为00(原有系统中仅将该信息域中的10，01,11赋予了含义，而未对00赋予含义)，通过该冗余比特指示进行上行多子帧调度。
需要说明的是，该第二调度准许信息可以是通过授权频谱(即第一频谱)的下行子帧发送，也可以是通过非授权频谱(即第二频谱)的下行子帧发送。 优选的，为了保证第二阶段上行调度准许信息传输的稳定性，可以采用授权频谱的下行子帧发送。
需要特别说明的是，本发明实施例所涉及的上行数据传输对应的上行调度准许信息的发送可以分为一个阶段发送(一次性发送)或者两个阶段发送(分成两次发送)。如果是采用一个阶段发送的情形下(即只存在第一阶段)，用户设备可以接收基站通过第一下行子帧发送的第一阶段上行调度准许信息，该第一阶段上行调度准许信息包含用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱，以及根据第一指示信息，确定被调度的多个上行子帧，并在所确定的多个上行子帧上进行上行数据发送。如果是采用两个阶段发送的情形下(即不但存在第一阶段，还存在第二阶段)，则第二阶段上行调度准许信息可以为一个公共的、半静态的准许信息，可包括用于指示在所述第二频谱上进行上行多子帧调度的第二指示信息，还可以包括资源块(Resource Block，简称RB)分配信息，MCS等级信息等；第一阶段上行调度准许信息则可以为一个具体的上行数据传输的调度信息，例如可以包括用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，可触发PUSCH信道在某个子帧上进行发送。本实施例所说的第一阶段和第二阶段只是用来表示该信息的发送时间先后不相同，第一阶段并不表示在时间顺序上先于第二阶段。第二阶段上行调度准许信息的发送时间上可以在第一阶段上行调度准许信息之前。采用一个阶段进行上行调度的方式相对较为简单，但为了尽量避免由于LBT失败而导致的调度失败情况的出现，采用两阶段上行准许信息的方式来进行上行调度的方式在提高调度效率方面被证明是有益的。
本发明实施例中，用户设备接收基站通过第一下行子帧发送的第一阶段上行调度准许信息，该第一阶段上行调度准许信息包含用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱，根据第一指示信息，确定被调度的多个上行子帧，并在所确定的多个上行子帧上进行上行数据发送。这种方式通过下行子帧的上行调度准许信息所包含的指示信息指示被调度的多个上行子帧的标识，节省信令开销。
请参照图6，为本发明实施例提供的另一种数据通信装置的结构示意图，该数据通信装置可以应用于用户设备，该数据通信装置1000包括收发器1010、存储器1020以及处理器1030。该数据通信装置所应用的用户设备可以为图1中示出的UE。
具体地，处理器1030控制数据通信装置1000的操作。存储器1020可以包括只读存储器和随机存取存储器，并向处理器1030提供指令和数据，处理器可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件。存储器1020的一部分还可以包括非易失行随机存取存储器(NVRAM)。数据通信装置1000的各个组件通过总线1040耦合在一起，其中总线系统1040除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图中将各种总线都标为总线系统1040。需要说明的是，上述对于数据通信装置结构的描述，可应用于后续的实施例。
收发器1010，用于接收基站通过第一下行子帧发送的第一阶段上行调度准许信息，所述第一阶段上行调度准许信息包含用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱；
处理器1030，用于根据所述第一指示信息，确定被调度的所述多个上行子帧；
收发器1010还用于在所述被调度的多个上行子帧上进行上行数据发送。
可选的，所述第一指示信息包括多个字符比特，所述多个字符比特用于指示多个子帧是否被调度，一个字符对应一个子帧，其中，第一字符用于指示对应的子帧被调度，第二字符用于指示对应的子帧未被调度。
可选的，所述第一指示信息包括被调度的连续多个子帧的起始子帧标识和所述多个子帧的总长度；或者，
所述第一指示信息包括被调度的连续多个子帧的起始子帧标识和结束子帧标识。
上述第一指示信息由所述第一下行子帧的下行控制信息DCI中的预设空闲信息域承载；或者，
上述第一指示信息由所述第一下行子帧的下行控制信息DCI中预设信息 域的冗余比特承载。
上述所述预设空闲信息域包括冗余版本RV域、信道状态指示请求CSI域、探测参考信号请求SRS request域中的至少一个。
进一步可选的，收发器1010还用于接收基站通过第二下行子帧发送的第二阶段上行调度准许信息，所述第二阶段上行调度准许信息包含用于指示在第二频谱上进行上行多子帧调度的第二指示信息。
上述第二指示信息由所述第二下行子帧的下行控制信息DCI中的预设空闲信息域承载；或者，
上述第二指示信息由所述第二下行子帧的下行控制信息DCI中预设信息域的冗余比特承载。
上述所述预设空闲信息域包括冗余版本RV域、信道状态指示请求CSI域、探测参考信号请求SRS request域中的至少一个。
可选的，所述第一阶段上行调度准许信息通过第一频谱的第一下行子帧发送；所述第二阶段上行调度准许信息通过所述第一频谱的第二下行子帧发送；其中，所述第一频谱为授权频谱。
需要特别说明的是，本发明实施例所涉及的上行数据传输对应的上行调度准许信息的发送可以分为一个阶段发送(一次性发送)或者两个阶段发送(分成两次发送)。如果是采用一个阶段发送的情形下(即只存在第一阶段)，用户设备可以接收基站通过第一下行子帧发送的第一阶段上行调度准许信息，该第一阶段上行调度准许信息包含用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱，以及根据第一指示信息，确定被调度的多个上行子帧，并在所确定的多个上行子帧上进行上行数据发送。如果是采用两个阶段发送的情形下(即不但存在第一阶段，还存在第二阶段)，则第二阶段上行调度准许信息可以为一个公共的、半静态的准许信息，可包括用于指示在所述第二频谱上进行上行多子帧调度的第二指示信息，还可以包括资源块(Resource Block，简称RB)分配信息，MCS等级信息等；第一阶段上行调度准许信息则可以为一个具体的上行数据传输的调度信息，例如可以包括用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，可触发PUSCH信道在某个子帧上进行发送。本实施例所说的第一阶段 和第二阶段只是用来表示该信息的发送时间先后不相同，第一阶段并不表示在时间顺序上先于第二阶段。第二阶段上行调度准许信息的发送时间上可以在第一阶段上行调度准许信息之前。采用一个阶段进行上行调度的方式相对较为简单，但为了尽量避免由于LBT失败而导致的调度失败情况的出现，采用两阶段上行准许信息的方式来进行上行调度的方式在提高调度效率方面被证明是有益的。
本发明实施例中，用户设备接收基站通过第一下行子帧发送的第一阶段上行调度准许信息，该第一阶段上行调度准许信息包含用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱，根据第一指示信息，确定被调度的多个上行子帧，并在所确定的多个上行子帧上进行上行数据发送。这种方式通过下行子帧的上行调度准许信息所包含的指示信息指示被调度的多个上行子帧的标识，节省信令开销。
请参照图7，为本发明实施例提供的又一种数据通信装置的结构示意图，本实施例的数据通信装置可以应用于基站侧，如图所示，本发明实施例的数据通信装置包括生成单元200和收发单元201；
生成单元200，用于生成第一阶段上行调度准许信息，所述第一阶段上行调度准许信息包含用于指示用户设备被调度的第二频谱上的多个上行子帧的标识的第一指示信息，所述第二频谱为非授权频谱；
本发明实施例中，LAA系统中的非授权频段中的上下行子帧分布会基于业务需求和LBT的结果等来进行确定，例如在上行业务需求较多的时候，就可能产生上行子帧数多于下行子帧数的情况，这样就需要一个下行子帧调度多个上行子帧。
基站侧确定要进行调度的多个上行子帧，并在LAA系统中生成第一阶段上行调度准许信息，该第一阶段上行调度准许信息包含用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱，该第一阶段上行调度准许信息通过第一下行子帧的下行控制信息(Downlink Control Information，DCI)向用户设备侧发送。用户设备接收基站通过第一下行子帧发送的第一阶段上行调度准许信息。
可选的，本发明实施例的第一指示信息可以复用已有的下行控制信息格式(DCI format)，用户对于不同的DCI format是通过盲检的方式进行检测的，增加新的DCI format就意味着用户设备盲检次数的增加，这会提升用户设备的实现复杂度和耗电量。本发明实施例复用已有的DCI format来承载第一指示信息可以降低UE盲检测复杂度，并且复用已有的DCI format不需要产生出新的DCI format，可以将控制信令开销控制在较低水平。
作为一种可选的实施方式，该第一指示信息可以通过比特映射的方式指示多个子帧是否被调度，即是第一指示信息包括多个字符比特，该多个字符比特用于指示多个子帧是否被调度，一个字符对应一个子帧，其中第一字符用于指示对应的子帧被调度，第二字符用于指示对应的子帧未被调度，比如，可以通过比特“1”指示对应的子帧被调度，而通过比特“0”指示对应的子帧未被调度。
具体可选的，可以通过设置DCI中预设信息域的冗余比特和/或预设空闲信息域表示该多个字符比特。预设空闲信息域包括冗余版本(Redundancy version，RV)域、信道状态指示(Channel status indication，CSI)请求域、探测参考信号(Sounding reference signal，SRS)请求域中的至少一个。
举例来说可以通过联合使用3bit的CSI request域以及1bit的SRS request采用比特映射的方式来表示被调度的多个上行子帧序号，其中置为“1”的比特位对应的子帧即为被调度的子帧。比如将这4bit的信息域设置为1011，即为调度的上行子帧序号为收到第一阶段上行调度准许信息4ms后的第1,3,4个子帧被调度。
作为另一种可选的实施方式，该第一指示信息包括被调度的连续多个子帧的起始子帧标识和该多个子帧的总长度，可选的，该多个子帧的总长度可以是该多个子帧的子帧个数，或者该多个子帧的总的时长。
具体可选的，可以通过设置DCI中预设信息域的冗余比特和/或预设空闲信息域表示该起始子帧标识以及该多个子帧的总长度。预设空闲信息域包括RV域、CSI请求域、SRS请求域中的至少一个。
比如，一个帧结构中包括10个子帧，该帧结构中10个子帧依据时间顺序分别编号为1、2、3、4…10，若需要连续调度第4个子帧到第6个子帧，则 第一指示信息可以包括起始子帧标识4和该被调度的多个子帧数量3。
作为又一种可选的实施方式，该第一指示信息包括被调度的连续多个子帧的起始子帧标识和结束子帧标识，可选的，一个帧结构中，为每一个子帧唯一分配一个子帧标识，比如可以是子帧序号。
具体可选的，可以通过设置DCI中预设信息域的冗余比特和/或预设空闲信息域表示该起始子帧标识以及该多个子帧的结束子帧标识。预设空闲信息域包括RV域、CSI请求域、SRS请求域中的至少一个。
比如，一个帧结构中包括10个子帧，该帧结构中10个子帧依据时间顺序分别编号为1、2、3、4…10，若需要连续调度第4个子帧到第6个子帧，则第一指示信息可以包括第4个子帧的标识和第6个子帧的标识。
收发单元201，用于通过第一下行子帧将所述第一阶段上行调度准许信息发送至所述用户设备。
本发明实施例中，该第一阶段上行调度准许信息可以是通过授权频谱(即第一频谱)的下行子帧发送，也可以是通过非授权频谱(即第二频谱)的下行子帧发送。优选的，为了保证第一阶段上行调度准许信息传输的稳定性，可以采用授权频谱的下行子帧发送。
可选的，所述生成单元200在生成第一阶段上行调度准许信息之前还用于生成第二阶段上行调度准许信息，所述第二阶段上行调度准许信息包含用于指示所述用户设备在所述第二频谱上进行上行多子帧调度的第二指示信息；
所述收发单元201还用于通过第二下行子帧将所述第二阶段上行调度准许信息发送至所述用户设备。
本发明实施例中，基站为了向用户设备指示在第二频谱上进行上行多子帧调度，则通过第二下行子帧向用户设备发送第二阶段上行调度准许信息，该第二阶段上行调度准许信息包含用于指示进行上行多子帧调度的第二指示信息。用户设备接收该第二下行子帧，通过解析该第二下行子帧的第二阶段上行调度准许信息中的第二指示信息，获知为多子帧调度，从而在接下来接收的第一下行子帧中，按照预设的多子帧调度的封装格式去解析第一子帧的DCI，获得被调度的多个上行子帧标识，从而在该多个上行子帧上发送上行数据。
可选的，所述第二指示信息由所述第二下行子帧的下行控制信息DCI中 的预设空闲信息域承载；或者，所述第二指示信息由所述第二下行子帧的下行控制信息DCI中预设信息域的冗余比特承载。其中，预设空闲信息域包括RV域、CSI请求域、SRS请求域中的至少一个。
比如在第二下行子帧的第二阶段上行调度准许信息中，将DCI中的预设信息域的冗余比特置为冗余值(即在原有系统中没有被定义的值/或者在某些具体场景下没有被使用)，以表示这是一个进行上行多子帧调度的特殊的控制信息。例如，包括但不限于：将新数据指示(New data indicates，NDI)域中的2bit信息域置为00(原有系统中仅将该信息域中的10，01,11赋予了含义，而未对00赋予含义)，通过该冗余比特指示进行上行多子帧调度。
需要说明的是，该第二调度准许信息可以是通过授权频谱(即第一频谱)的下行子帧发送，也可以是通过非授权频谱(即第二频谱)的下行子帧发送。优选的，为了保证第二阶段上行调度准许信息传输的稳定性，可以采用授权频谱的下行子帧发送。
本发明实施例中，用户设备接收基站通过第一下行子帧发送的第一阶段上行调度准许信息，该第一阶段上行调度准许信息包含用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱，根据第一指示信息，确定被调度的多个上行子帧，并在所确定的多个上行子帧上进行上行数据发送。这种方式通过下行子帧的上行调度准许信息所包含的指示信息指示被调度的多个上行子帧的标识，节省信令开销。
请参照图8，为本发明实施例提供的又一种数据通信装置的结构示意图，本发明实施例的数据通信装置可以应用于基站侧，该数据通信装置包括收发器2010、存储器2020以及处理器2030。
具体的，处理器2030控制数据通信装置2000的操作。存储器2020可以包括只读存储器和随机存取存储器，并向处理器2030提供指令和数据，处理器可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件。存储器2020的一部分还可以包括非易失行随机存取存储器(NVRAM)。数据通信装置2000的各个组件通过总线2040耦合在一起，其中总线系统2040除包括数据总线之外，还包括电源总线、控制总线和 状态信号总线。但是为了清楚说明起见，在图中将各种总线都标为总线系统2040。需要说明的是，上述对于数据通信装置结构的描述，可应用于后续的实施例。
处理器2030，用于生成第一阶段上行调度准许信息，所述第一阶段上行调度准许信息包含用于指示用户设备被调度的第二频谱上的多个上行子帧的标识的第一指示信息，所述第二频谱为非授权频谱；
收发器2010，用于通过第一下行子帧将所述第一阶段上行调度准许信息发送至所述用户设备。
可选的，处理器2030还用于生成第二阶段上行调度准许信息，所述第二阶段上行调度准许信息包含用于指示所述用户设备在所述第二频谱上进行上行多子帧调度的第二指示信息；
收发器2010还用于通过第二下行子帧将所述第二阶段上行调度准许信息发送至所述用户设备。
可选的，所述第一阶段上行调度准许信息通过第一频谱的第一下行子帧发送；
所述第二阶段上行调度准许信息通过所述第一频谱的第二下行子帧发
送；其中，所述第一频谱为授权频谱。
本发明实施例中，用户设备接收基站通过第一下行子帧发送的第一阶段上行调度准许信息，该第一阶段上行调度准许信息包含用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱，根据第一指示信息，确定被调度的多个上行子帧，并在所确定的多个上行子帧上进行上行数据发送。这种方式通过下行子帧的上行调度准许信息所包含的指示信息指示被调度的多个上行子帧的标识，节省信令开销。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，所述的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory，ROM)或随机存储记忆体(Random Access Memory，RAM)等。
本发明实施例方法中的步骤可以根据实际需要进行顺序调整、合并和删 减。
本发明实施例终端中的模块可以根据实际需要进行合并、划分和删减。
本发明实施例的微控制器等部件,可以以通用集成电路，如CPU，或以专用集成电路(Application Specific Integrated Circuit，ASIC)来实现。
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之权利范围，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的范围。

Claims (22)

  1. 一种数据通信方法，其特征在于，包括：
    接收基站通过第一下行子帧发送的第一阶段上行调度准许信息，所述第一阶段上行调度准许信息包含用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱；
    根据所述第一指示信息，确定被调度的所述多个上行子帧，并在所述多个上行子帧上进行上行数据发送。
  2. 如权利要求1所述的方法，其特征在于，所述第一指示信息包括多个字符比特，所述多个字符比特用于指示多个子帧是否被调度，一个字符对应一个子帧，其中，第一字符用于指示对应的子帧被调度，第二字符用于指示对应的子帧未被调度。
  3. 如权利要求1所述的方法，其特征在于，所述第一指示信息包括被调度的连续多个子帧的起始子帧标识和所述多个子帧的总长度；或者，
    所述第一指示信息包括被调度的连续多个子帧的起始子帧标识和结束子帧标识。
  4. 如权利要求2或3所述的方法，其特征在于，所述第一指示信息由所述第一下行子帧的下行控制信息DCI中的预设空闲信息域承载；或者，
    所述第一指示信息由所述第一下行子帧的下行控制信息DCI中预设信息域的冗余比特承载。
  5. 如权利要求1所述的方法，其特征在于，所述接收基站通过第一下行子帧发送的第一阶段上行调度准许信息之前，还包括：
    接收基站通过第二下行子帧发送的第二阶段上行调度准许信息，所述第二阶段上行调度准许信息包含用于指示在所述第二频谱上进行上行多子帧调度的第二指示信息。
  6. 如权利要求5所述的方法，其特征在于，所述第二指示信息由所述第二下行子帧的下行控制信息DCI中的预设空闲信息域承载；或者，
    所述第二指示信息由所述第二下行子帧的下行控制信息DCI中预设信息域的冗余比特承载。
  7. 如权利要求4或6所述的方法，其特征在于，所述预设空闲信息域包括所述DCI中的冗余版本RV域、信道状态指示请求CSI域、探测参考信号请求SRS request域中的至少一个。
  8. 如权利要求5所述的方法，其特征在于，所述第一阶段上行调度准许信息通过第一频谱的第一下行子帧发送；
    所述第二阶段上行调度准许信息通过所述第一频谱的第二下行子帧发送；其中，所述第一频谱为授权频谱。
  9. 一种数据通信方法，其特征在于，包括：
    生成第一阶段上行调度准许信息，所述第一阶段上行调度准许信息包含用于指示用户设备被调度的第二频谱上的多个上行子帧的标识的第一指示信息，所述第二频谱为非授权频谱；
    通过第一下行子帧将所述第一阶段上行调度准许信息发送至所述用户设备。
  10. 如权利要求9所述的方法，其特征在于，所述生成第一阶段上行调度准许信息之前，还包括：
    生成第二阶段上行调度准许信息，所述第二阶段上行调度准许信息包含用于指示所述用户设备在所述第二频谱上进行上行多子帧调度的第二指示信息；
    通过第二下行子帧将所述第二阶段上行调度准许信息发送至所述用户设备。
  11. 如权利要求9或10所述的方法，其特征在于，所述第一阶段上行调度准许信息通过第一频谱的第一下行子帧发送；
    所述第二阶段上行调度准许信息通过所述第一频谱的第二下行子帧发送；其中，所述第一频谱为授权频谱。
  12. 一种数据通信装置，应用于用户设备，其特征在于，包括：
    收发单元，用于接收基站通过第一下行子帧发送的第一阶段上行调度准许信息，所述第一阶段上行调度准许信息包含用于指示被调度的第二频谱上的多个上行子帧的标识的第一指示信息，其中所述第二频谱为非授权频谱；
    处理单元，用于根据所述第一指示信息，确定被调度的所述多个上行子帧；
    所述收发单元还用于在所述被调度的多个上行子帧上进行上行数据发送。
  13. 如权利要求12所述的方法，其特征在于，所述第一指示信息包括多个字符比特，所述多个字符比特用于指示多个子帧是否被调度，一个字符对应一个子帧，其中，第一字符用于指示对应的子帧被调度，第二字符用于指示对应的子帧未被调度。
  14. 如权利要求12所述的方法，其特征在于，所述第一指示信息包括被调度的连续多个子帧的起始子帧标识和所述多个子帧的总长度；或者，
    所述第一指示信息包括被调度的连续多个子帧的起始子帧标识和结束子帧标识。
  15. 如权利要求13或14所述的装置，其特征在于，所述第一指示信息由所述第一下行子帧的下行控制信息DCI中的预设空闲信息域承载；或者，
    所述第一指示信息由所述第一下行子帧的下行控制信息DCI中预设信息域的冗余比特承载。
  16. 如权利要求12所述的装置，其特征在于，
    所述收发单元还用于接收基站通过第二下行子帧发送的第二阶段上行调 度准许信息，所述第二阶段上行调度准许信息包含用于指示在所述第二频谱上进行上行多子帧调度的第二指示信息。
  17. 如权利要求16所述的装置，其特征在于，所述第二指示信息由所述第二下行子帧的下行控制信息DCI中的预设空闲信息域承载；或者，
    所述第二指示信息由所述第二下行子帧的下行控制信息DCI中预设信息域的冗余比特承载。
  18. 如权利要求15或17所述的装置，其特征在于，所述预设空闲信息域包括所述DCI中的冗余版本RV域、信道状态指示请求CSI域、探测参考信号请求SRS request域中的至少一个。
  19. 如权利要求16所述的装置，其特征在于，所述第一阶段上行调度准许信息通过第一频谱的第一下行子帧发送；
    所述第二阶段上行调度准许信息通过所述第一频谱的第二下行子帧发送；其中，所述第一频谱为授权频谱。
  20. 一种数据通信装置，应用于基站，其特征在于，包括：
    生成单元，用于生成第一阶段上行调度准许信息，所述第一阶段上行调度准许信息包含用于指示用户设备被调度的第二频谱上的多个上行子帧的标识的第一指示信息，所述第二频谱为非授权频谱；
    收发单元，用于通过第一下行子帧将所述第一阶段上行调度准许信息发送至所述用户设备。
  21. 如权利要求20所述的装置，其特征在于，
    所述生成单元还用于生成第二阶段上行调度准许信息，所述第二阶段上行调度准许信息包含用于指示所述用户设备在所述第二频谱上进行上行多子帧调度的第二指示信息；
    所述收发单元还用于通过第二下行子帧将所述第二阶段上行调度准许信 息发送至所述用户设备。
  22. 如权利要求20或21所述的装置，其特征在于，所述第一阶段上行调度准许信息通过第一频谱的第一下行子帧发送；
    所述第二阶段上行调度准许信息通过所述第一频谱的第二下行子帧发送；其中，所述第一频谱为授权频谱。
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