WO2017008623A1 - Method and apparatus for data transmission in unauthorized carrier - Google Patents

Method and apparatus for data transmission in unauthorized carrier Download PDF

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Publication number
WO2017008623A1
WO2017008623A1 PCT/CN2016/087148 CN2016087148W WO2017008623A1 WO 2017008623 A1 WO2017008623 A1 WO 2017008623A1 CN 2016087148 W CN2016087148 W CN 2016087148W WO 2017008623 A1 WO2017008623 A1 WO 2017008623A1
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WO
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Prior art keywords
burst data
subframe
frame
downlink
uplink
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PCT/CN2016/087148
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French (fr)
Chinese (zh)
Inventor
苟伟
赵亚军
毕峰
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中兴通讯股份有限公司
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Publication of WO2017008623A1 publication Critical patent/WO2017008623A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10Dynamic resource partitioning
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • This document relates to the field of communications, and in particular to a method and apparatus for transmitting data in an unlicensed carrier.
  • LTE Long-Term Evolution
  • some companies such as Qualcomm of the United States propose to study the issue of LTE deployment in unlicensed carriers.
  • it has not been accepted and approved by LTE until now.
  • the unlicensed spectrum has the following characteristics and advantages:
  • M2M Machine to machine
  • V2V Vehicle to vehicle
  • the unlicensed spectrum may be an important performance of the wireless communication system. In the direction, but there are also many problems. For example, there will be a variety of wireless systems in the unlicensed spectrum, which are difficult to coordinate with each other and have serious interference.
  • the LTE is currently running on the authorized carrier and has the foreseeable resource usage.
  • the site including the base station and the user equipment (UE) preempts the unlicensed carrier.
  • TDD Time Division Duplex
  • the ratio relationship is defined according to the premise that the resources under the licensed carrier do not need to be preempted, but When the unlicensed carrier is used, since the preemption is opportunistic, there is a problem of inefficiency according to the related TDD frame structure.
  • the new TDD frame structure should be designed and combined with the transmission requirements of burst data.
  • the embodiment of the invention provides a method and a device for transmitting data in an unlicensed carrier, so as to enable the burst data to be efficiently transmitted in a limited time within a time period of preempting the unlicensed carrier.
  • a method for transmitting data in an unlicensed carrier including: preparing burst data Burst Data; determining, according to the burst data, an uplink subframe required for transmitting the burst data a downlink subframe; acquiring an unlicensed carrier; mapping the first burst data corresponding to the uplink subframe and the second burst data corresponding to the downlink subframe to the unlicensed carrier In the stator frame; transmitting and/or receiving the burst data through the designated subframe.
  • obtaining the unlicensed carrier comprises: acquiring the unlicensed carrier by performing an idle channel assessment CCA and/or an extended idle channel assessment eCCA.
  • mapping the first burst data corresponding to the uplink subframe and the second burst data corresponding to the downlink subframe to the specified subframe of the unlicensed carrier includes: performing CCA and/or The mapping starts in the successful subframe of the eCCA; or, the mapping starts from the first subframe after the subframe in which the CCA and/or eCCA is successful.
  • the timing of the frame of the unlicensed carrier is the same as the timing of the frame of the corresponding authorized carrier, and the timing of the subframe of the unlicensed carrier is the same as the timing of the subframe of the corresponding authorized carrier.
  • the downlink subframe is located before the uplink subframe.
  • preparing the burst data Burst Data includes: when the number of the burst data is a fixed value, preparing the burst data by: first, according to the second burst data requirement corresponding to the downlink subframe The burst data is prepared, and the burst data is prepared according to the first burst data requirement corresponding to the uplink subframe.
  • the first burst data requirement corresponding to the uplink subframe cannot meet the quantity of the burst data, supplementing the corresponding corresponding uplink subframe
  • the first burst of data fills the amount of burst data.
  • the burst when the number of the burst data is a fixed value, forming ratio information corresponding to the burst data; wherein, when the quantity of the burst data is a given value M, the burst
  • forming the ratio information corresponding to the burst data includes: forming the ratio information according to the number of the downlink subframes.
  • the forming the matching information corresponding to the burst data further includes: sending the ratio information to the receiving end through the air interface.
  • the forming the matching information corresponding to the burst data further includes: the first station sending the matching information to the second station by using an X2 interface.
  • the plurality of unlicensed carriers transmit the burst data using the same proportion information.
  • the method further includes: when the second station multiplexes the unlicensed carrier with the first station, the ratio is The information is also used for the burst data ratio of the second site.
  • the number of downlink subframes in the ratio information is greater than or equal to the number of downlink subframes in the ratio information of the burst data of the second station determined by the second station.
  • the second station when the second station multiplexes the unlicensed carrier with the first station, and the energy detection threshold when the second station performs CCA and/or eCCA, the multiplexing of the unlicensed carrier is satisfied.
  • the energy detection threshold is timed, the second station determines the ratio information corresponding to the burst data of the second station according to its own burst data.
  • the frame length of the frame in which the specified subframe is located is fixed or semi-statically configured, and an uplink or downlink attribute of the specified subframe in the frame is determined by corresponding burst data.
  • a device for transmitting data in an unlicensed carrier comprising: a preparation module, configured to prepare burst data Burst Data; and a determining module, configured to determine according to the burst data An uplink subframe and a downlink subframe that are required to transmit the burst data; an acquiring module, configured to acquire an unlicensed carrier; and a mapping module, configured to: first burst data corresponding to the uplink subframe and the downlink subframe Corresponding second burst data is mapped into a designated subframe of the unlicensed carrier; and the processing module is configured to send and/or receive the burst data through the designated subframe.
  • the obtaining module is configured to acquire the unlicensed carrier by performing an idle channel evaluation CCA and/or an extended idle channel evaluation eCCA.
  • the mapping module is configured to start mapping from a subframe in which CCA and/or eCCA is successful; or to start mapping in a first subframe after a subframe in which CCA and/or eCCA is successful.
  • the timing of the frame of the unlicensed carrier is the same as the timing of the frame of the corresponding authorized carrier, and the timing of the subframe of the unlicensed carrier is the same as the timing of the subframe of the corresponding authorized carrier.
  • the downlink subframe is located before the uplink subframe.
  • the preparation module is configured to prepare the burst data in the following manner when the number of the burst data is a fixed value: first, prepare according to the second burst data requirement corresponding to the downlink subframe The burst data is prepared by the burst data according to the first burst data requirement corresponding to the uplink subframe.
  • the preparation module is configured to add a false one when the first burst data requirement corresponding to the uplink subframe cannot satisfy the quantity of the burst data in the process of preparing the burst data.
  • the first burst data corresponding to the uplink subframe is filled with the number of burst data.
  • the ratio module is configured to form ratio information corresponding to the burst data by forming the ratio information according to the number of the downlink subframes.
  • the device further includes: a sending module, configured to send the proportioning information to the receiving end through the air interface.
  • a sending module configured to send the proportioning information to the receiving end through the air interface.
  • the processing module is configured to: when the plurality of unlicensed carriers are used to simultaneously transmit the burst data, the plurality of unlicensed carriers transmit the burst data by using the same proportion information.
  • the frame length of the frame in which the specified subframe is located is fixed or semi-statically configured, and an uplink or downlink attribute of the specified subframe in the frame is determined by corresponding burst data.
  • the embodiment of the invention further provides a data transmission method, wherein
  • the site in the unlicensed carrier uses frames for data transmission
  • the frame includes a plurality of subframes of equal length
  • the subframe is determined by the burst data to be transmitted as an uplink subframe or a downlink subframe.
  • the frame number and the subframe number of the frame used by the unlicensed carrier are aligned with the frame number and the subframe number of the frame used by the paired authorized carrier.
  • the frame also includes a special subframe S' subframe, and the S' subframe includes downlink transmission and/or uplink transmission.
  • the ratio information corresponding to the burst data is formed in the frame; wherein, when the number of the burst data is a given value M, the burst
  • M the number of the burst data
  • the signaling of the uplink subframe or the downlink subframe determined by the burst data, or the configuration sequence number information of the frame is transmitted by using the downlink control information DCI, or implicitly transmitted by using a reserved signal or an initial signal.
  • the subframe Before the subframe is determined by the burst data to be transmitted as an uplink subframe or a downlink subframe, the subframe is not defined as an uplink subframe or a downlink subframe.
  • the burst data Burst Data is used; the uplink subframe and the downlink subframe required for transmitting the burst data are determined according to the burst data; the unlicensed carrier is acquired; and the first burst corresponding to the uplink subframe is obtained.
  • the data and the second burst data corresponding to the downlink subframe are mapped into a designated subframe of the unlicensed carrier; the burst data is transmitted and/or received through the designated subframe.
  • the embodiment of the invention realizes that the burst data can be efficiently transmitted in a limited time within a time period of preempting the unlicensed carrier, thereby realizing the occupation of the unlicensed carrier in the LTE system.
  • FIG. 1 is a flowchart of a method of transmitting data in an unlicensed carrier according to an embodiment of the present invention
  • FIG. 2 is a structural block diagram of a data transmission apparatus in an unlicensed carrier according to an embodiment of the present invention
  • FIG. 3 is a structural block diagram (1) of a data transmission apparatus in an unlicensed carrier according to an embodiment of the present invention
  • FIG. 4 is a structural block diagram (2) of a data transmission apparatus in an unlicensed carrier according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of transmission of LAA burst data according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of LAA burst data and uplink and downlink subframe attributes of a frame according to an embodiment of the present invention
  • FIG. 7 is a schematic diagram of a manner of LAA burst data transmission according to an embodiment of the present invention.
  • FIG. 1 is a flowchart of a method for transmitting data in an unlicensed carrier according to an embodiment of the present invention. Figure, as shown in Figure 1, the process includes the following steps:
  • Step S102 preparing burst data Burst Data
  • Step S104 determining, according to the burst data, an uplink subframe and a downlink subframe required for transmitting the burst data;
  • Step S108 mapping the first burst data corresponding to the uplink subframe and the second burst data corresponding to the downlink subframe to the designated subframe of the unlicensed carrier;
  • Step S110 transmitting and/or receiving burst data by specifying a subframe.
  • the above steps enable the burst data to be efficiently transmitted in a limited time within a time period of each unlicensed carrier that is preempted, thereby realizing the unlicensed carrier in the LTE system. Occupied.
  • the above steps are not necessarily strictly performed in the above-described order. In the case of no conflict, the order may be switched in parallel or in another order. For example, S106 may be executed first, and then S102 and S104 are executed.
  • the unlicensed carrier is acquired. It should be noted that the unlicensed carrier can be obtained in multiple manners.
  • the eCCA is evaluated by performing the idle channel evaluation CCA and/or the extended idle channel. Obtain an unlicensed carrier.
  • the first burst data corresponding to the uplink subframe and the second burst data corresponding to the downlink subframe are mapped into the designated subframe of the unlicensed carrier.
  • Mapping begins in a subframe in which CCA and/or eCCA is successful, and in another alternative embodiment, mapping begins in the first subframe after the successful CCA and/or eCCA successful subframe.
  • the timing of the frame of the unlicensed carrier is the same as the timing of the frame of the corresponding authorized carrier, and the timing of the subframe of the unlicensed carrier is the same as the timing of the subframe of the corresponding authorized carrier.
  • the reference signal sent by the unlicensed carrier is generated according to at least one of the following: a frame number of the frame of the unlicensed carrier, an uplink subframe, and/or a frame number of the downlink subframe, and a non- The slot number of the authorized carrier.
  • the downlink subframe is located before the uplink subframe.
  • the burst data Burst Data is involved.
  • the burst data is prepared by: firstly according to the second corresponding to the downlink subframe. The burst data needs to prepare the burst data, and secondly prepares the burst data according to the first burst data requirement corresponding to the uplink subframe.
  • the fake uplink subframe pair is added.
  • the first burst of data should be filled to fill the amount of burst data.
  • the ratio information is formed according to the number of downlink subframes.
  • the matching information is sent to the receiving end through the air interface.
  • the first station after the first station forms the matching information corresponding to the burst data, the first station sends the matching information to the other station through the X2 interface.
  • the plurality of unlicensed carriers transmit the burst data using the same proportioning information.
  • the matching information is also used for the second The burst data ratio of the site.
  • the number of downlink subframes in the ratio information is greater than or equal to the number of downlink subframes in the ratio information of the burst data of the second station determined by the second station.
  • the energy detection threshold satisfies the energy when multiplexing the unlicensed carrier.
  • the second station determines the ratio information corresponding to the burst data of the second station according to its own burst data.
  • the frame length of the frame in which the subframe is specified is fixed or semi-statically configured, and the uplink or downlink attributes of the designated subframe in the frame are determined by the corresponding burst data.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course It can be done through hardware, but in many cases the former is a better implementation.
  • the technical solution of the present invention in essence or the contribution to the related art can be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, CD-ROM).
  • the instructions include a number of instructions for causing a terminal device (which may be a cell phone, computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention.
  • a device for transmitting data in an unlicensed carrier is also provided, and the device is used to implement the foregoing embodiments and optional embodiments, and details are not described herein.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • the apparatus includes: a preparation module 22 configured to prepare burst data Burst Data; and a determination module 24 configured to And determining, by the burst data, an uplink subframe and a downlink subframe that are required to transmit the burst data; the acquiring module 26 is configured to acquire an unlicensed carrier; and the mapping module 28 is configured to set the first burst data and the downlink corresponding to the uplink subframe.
  • the second burst data corresponding to the subframe is mapped into a designated subframe of the unlicensed carrier; the processing module 30 is configured to transmit and/or receive the burst data by the designated subframe.
  • the acquisition module 26 is configured to acquire the unlicensed carrier by performing an idle channel assessment CCA and/or an extended idle channel assessment eCCA.
  • the mapping module 28 is configured to start mapping from a subframe in which CCA and/or eCCA is successful; or to start mapping in a first subframe after a subframe in which CCA and/or eCCA is successful.
  • the timing of the frame of the unlicensed carrier is the same as the timing of the frame of the corresponding authorized carrier, and the timing of the subframe of the unlicensed carrier is the same as the timing of the subframe of the corresponding authorized carrier.
  • the reference signal sent by the unlicensed carrier is generated according to at least one of: a frame number of the frame of the unlicensed carrier, a frame number of the uplink subframe and/or the downlink subframe, and the unlicensed carrier.
  • the slot number is generated according to at least one of: a frame number of the frame of the unlicensed carrier, a frame number of the uplink subframe and/or the downlink subframe, and the unlicensed carrier.
  • the downlink subframe is located before the uplink subframe.
  • the preparation module 22 is configured to pass when the number of burst data is a fixed value.
  • the burst data is prepared in the following manner: first, the burst data is prepared according to the second burst data requirement corresponding to the downlink subframe, and then the burst data is prepared according to the first burst data requirement corresponding to the uplink subframe.
  • the data is used to fill the amount of burst data.
  • FIG. 3 is a structural block diagram (1) of a data transmission apparatus in an unlicensed carrier according to an embodiment of the present invention.
  • the apparatus shown in FIG. 3 further includes: a ratio ratio module. 32. Set, when the number of the burst data is a fixed value, form matching ratio information corresponding to the burst data; wherein, when the quantity of the burst data is a given value M, each of the burst data
  • the ratio module 32 is configured to form the ratio information according to the number of the downlink subframes.
  • FIG. 4 is a structural block diagram (2) of a data transmission apparatus in an unlicensed carrier according to an embodiment of the present invention.
  • the apparatus shown in FIG. 4 further includes: a sending module 42, which is set as shown in FIG. In order to send the matching information to the receiving end through the air interface.
  • the plurality of unlicensed carriers transmit the burst data using the same proportion information.
  • the frame length of the frame in which the specified subframe is located is fixed or semi-statically configured, and an uplink or downlink attribute of the specified subframe in the frame is determined by the corresponding burst data.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.
  • Embodiments of the present invention also provide a storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • a mobile hard disk e.g., a hard disk
  • magnetic memory e.g., a hard disk
  • the processor executes the foregoing S1, S2, S3, S4, and S5 according to the stored program code in the storage medium.
  • a frame structure suitable for LTE to be used in an unlicensed carrier including:
  • FIG. 5 is a schematic diagram of transmission of LAA burst data according to an embodiment of the present invention.
  • a station in a non-authorized carrier uses a fixed or semi-statically configurable frame for data transmission, and the frame includes several subframes of equal length (but The subframe is not defined in the frame as a downlink or uplink subframe, and the subframe is used for uplink or downlink by the burst data.
  • the unlicensed carrier is aligned with the paired authorized carrier in time. For example, it can be considered that the frame number and the subframe number are aligned.
  • the signaling of the uplink subframe or the downlink subframe determined by the burst data may be transmitted through the DCI, or directly transmitted through a reserved signal or an initial signal. If the reserved signal or the initial signal is used for transmission, the difference between the sequence of the reserved signal or the initial signal may be used to correspond to different signaling, or the resource transmitted by the reserved signal or the initial signal (for example, subcarrier, PRB)
  • the pattern of or RE implies signaling or implies signaling by a reserved signal or a pattern of silent resources transmitted by the initial signal.
  • the CCA/eCCA successful subframe is used as the transmission starting point of the burst data (assuming that the CCA/eCCA successfully executed subframe includes, it can also be successfully executed from the CCA/eCCA.
  • the next subframe of the subframe is used as the transmission starting point of the burst data, and the burst data configuration sequence number corresponding to the burst data is determined.
  • the burst data is determined according to the demand of the downlink and/or uplink load in the burst data. Number of mid-downstream and/or uplink subframes.
  • the subframe of the site and the corresponding burst data is transmitted through the subframe in the frame. And generating a correlation signal by using a frame, a subframe, and a slot number in a subframe of a frame of the transmission burst data corresponding to the unlicensed carrier.
  • the station discharges the subframe corresponding to the downlink load in the burst data before the uplink load (when there is no uplink burst data requirement, the special burst subframe S' subframe is at the forefront).
  • the proposed use of fixed length burst data in the present application can be made "dynamic".
  • a possible way is as follows: assuming that the site's fixed burst data is 10 ms, when the site determines the load demand in the burst data, the site generates the number of subframes required for downlink burst data and the number of subframes required for uplink burst data according to the load requirement.
  • the station When the actual load is not enough for 10ms, the station generates the number of subframes of false uplink burst data to make up for 10ms.
  • the station authorizes the UE to send data or resource preemption in the compensated uplink burst data.
  • other sites allow the CCA/eCCA to compete for the resource and use it.
  • the subframe corresponding to the uplink burst data in the burst data of the site will be preempted by other stations, and will not affect the measurement of the UE.
  • the temporary discovery requires the UE to send related information (such as data retransmission, ACK feedback, etc.), and the subframe corresponding to the uplink burst data can still be used by the UE (or the site authorized UE). .
  • the burst data ratio that the station can use is the formation rule of the ratio of burst data: X downlink burst data subframes, 1 Special burst data subframe, Y uplink burst data subframes.
  • the value of X is 0 to M
  • the value of Y is 0 to M
  • the station can use some or all of the ratios in the ratio as a given burst data matching set. For example, each time the station preempts a successful unlicensed carrier, it can only use one ratio in the matching set. Make up burst data.
  • burst data is 10 ms long, then 10 sub-frames are supported, and the downlink and uplink burst data ratios corresponding to the 11 types of burst data are given.
  • Each of the following configurations is used as a configuration of burst data, respectively ( Similar processing can be used for burst data of other lengths):
  • Configuration 2 2 downlink subframes, 1 S' subframe, and 7 uplink subframes.
  • Configure 4 4 downlink subframes, 1 S' subframe, and 5 uplink subframes.
  • Configure 5 5 downlink subframes, 1 S' subframe, and 4 uplink subframes.
  • Configure 6 6 downlink subframes, 1 S' subframe, and 3 uplink subframes.
  • Configure 7 7 downlink subframes, 1 S' subframe, and 2 uplink subframes.
  • Configure 8 8 downlink subframes, 1 S' subframe, and 1 uplink subframe.
  • Configure 9 1 S' subframe, 9 downlink subframes, and 0 uplink subframes.
  • the station After the site successfully performs the CCA/eCCA to obtain the unlicensed carrier, the station resends the configuration sequence number information of the burst data during the occupation period. For example, after the base station preempts successfully, the configuration sequence number information of the burst data is sent in the current subframe or the subsequent subframe. For example, the base station sends the configuration number of the burst data (that is, the foregoing configuration 0, configuration 1, configuration 2, and the like).
  • S' includes at least downlink, CCA/eCCA in chronological order, wherein the UE performs CCA/eCCA.
  • the UE After the UE performs CCA/eCCA success, if the S' subframe boundary is still not reached, the UE (and/or base station) needs to transmit a reservation signal. When the moment when the CCA/eCCA is successfully executed is the boundary of the S' subframe (or when the distance boundary is less than 9us or 34us or 40us), the UE (and/or the base station) does not transmit the reserved signal.
  • a simple CCA/eCCA can be designed for the UE, for example, only the initial CCA is performed, and the CCA execution end position is not more than 18 us or 68 us or 80 us from the end boundary of the S' subframe (for example, 68 us, considering that the UE performs a CCA once, the duration is 34 us, The distance from the S' subframe boundary will be less than 68us-34us), or the end position of the CCA execution is the S' subframe end boundary.
  • the uplink and/or downlink matching information of the neighboring site interaction plan or the burst data of the unlicensed carrier is used, for example, through the X2 interface, or through air interface interaction.
  • the site 1 sends the burst data uplink and/or downlink ratio information that is planned to be implemented after the preemption succeeds.
  • the receiver determines that the station 1 preempts the unlicensed carrier.
  • the receiving end implements frequency multiplexing, it is optional to follow the burst data of the received station 1
  • the sub-frame pattern is used to perform the burst data uplink and downlink sub-frame pattern at the time of frequency multiplexing. This can avoid interference problems between uplink and downlink subframe conflicts between burst data. If the receiving end station cannot select the same burst data as the station 1, the receiving end selects the burst data configuration and the downlink data is less than the burst data configuration of the station 1.
  • the site may also send burst data configuration information after the preemption succeeds, and then the receiving end (not preemptive success) receives the burst data configuration, and performs the burst data configuration according to the burst data configuration, or selects an appropriate burst data configuration according to the above manner.
  • the X2 interface transmission delay at this time is almost negligible.
  • the same burst data configuration is designed and prioritized for multiple unlicensed carriers adjacent to the band data to reduce the neighbor leakage leakage problem of the adjacent band unlicensed carriers.
  • FIG. 6 is a schematic diagram of LAA burst data and uplink and downlink subframe attributes of a frame according to an embodiment of the present invention.
  • an unlicensed carrier for a site, although an unlicensed carrier is used, it is used after the preemption is successful. If there is no preemption, it cannot be used (equivalent to other stations in use), so the station cannot always maintain the corresponding frame number, subframe number, slot number, etc. like the authorized carrier. Therefore, in Figure 6, the frame number, subframe number, and slot number of the unlicensed carrier are determined by the corresponding authorized carrier. That is, the frame number, the subframe number, and the slot number are aligned. In this way, when the site preempts successfully, it can have its own frame number, subframe number, and slot number, so that the information can be used to generate and transmit the corresponding reference signal.
  • the station determines the number of downlink subframes and uplink subframes required for transmitting burst data according to the load requirement (S or S' subframe is counted as downlink in this example), and then according to the foregoing burst data configuration. Select the corresponding burst data configuration serial number. For example, in Figure 6, after the site is successfully occupied, the downlink of the burst data requires 6 subframes, and the uplink requires 4 subframes, then the site selects burst data configuration 5. And mapping the uplink and downlink subframes corresponding to the configuration 5 to the actual subframe corresponding to the unlicensed carrier frame. Thus, the specific frame and the uplink and downlink subframes of the unlicensed carrier during the occupation of the station are as shown in FIG. 6.
  • the station generates a corresponding downlink reference signal according to the frame number, the subframe number, and the slot number, and transmits the corresponding downlink reference signal.
  • the uplink subframe is also sent by the receiving end according to the frame number, the subframe number, and the slot number to generate a corresponding reference signal at the corresponding location.
  • a frame structure selection method suitable for LTE to be used in an unlicensed carrier comprising:
  • Configuration 0 (configuration number of the frame): (in chronological order, the same below) 0 downlink subframes, 1 S' subframe, and 9 uplink subframes.
  • Configuration 2 2 downlink subframes, 1 S' subframe, and 7 uplink subframes.
  • Configure 3 3 downlink subframes, 1 S' subframe, and 6 uplink subframes.
  • Configure 4 4 downlink subframes, 1 S' subframe, and 5 uplink subframes.
  • Configure 5 5 downlink subframes, 1 S' subframe, and 4 uplink subframes.
  • Configure 6 6 downlink subframes, 1 S' subframe, and 3 uplink subframes.
  • Configure 7 7 downlink subframes, 1 S' subframe, and 2 uplink subframes.
  • Configure 8 8 downlink subframes, 1 S' subframe, and 1 uplink subframe.
  • Configure 9 1 S' subframe, 9 downlink subframes, and 0 uplink subframes.
  • the site After the site successfully performs the CCA/eCCA to obtain the unlicensed carrier, the site resends the uplink and downlink configuration information of the frame during the occupation period. For example, after the base station preempts successfully, the uplink and downlink configuration information of the frame is sent in the currently successful subframe or the subsequent subframe, for example, the configuration sequence number of the frame transmitted by the base station (that is, the foregoing configuration 0, configuration 1, configuration 2, and the like).
  • the site performs the preemption of resource usage rights at the location where CCA/eCCA is allowed to be performed. When the site preemption succeeds, the site selects a reasonable frame configuration number.
  • the station needs to keep the timing of the unlicensed carrier consistent with the timing of the paired authorized carrier, that is, divide the frame, the subframe, the OFDM symbol boundary according to the timing of the authorized carrier, and the frame number and the subframe number. Mark. Refer to Figure 5.
  • the station determines the frame and subframe in which the CCA/eCCA is successfully performed, and the station determines the current occupation time (or the maximum duration occupied) as the number of remaining subframes in the current frame.
  • the station can reconfigure the uplink and downlink configuration information corresponding to the frame, for example, the configuration sequence number of the reconfiguration frame. By reconfiguring the sequence number, the number of uplink subframes and downlink subframes can be adjusted. Equivalently, the station determines the number of subframes corresponding to the occupied duration (or the maximum duration) by the CCA/eCCA successful subframe position, and then adjusts the occupied duration (within the maximum duration) by reconfiguring the configuration number of the current frame.
  • the number of downlink subframes meets the requirements of uplink and downlink loads.
  • the station may not send the configuration sequence number information of the frame, and the default configuration number of the current (or last used) frame is adopted.
  • the signaling of the configuration sequence number information of the frame is transmitted through the DCI, or directly through the reserved signal or the initial signal. If the reserved signal or the initial signal is used for transmission, the sequence of the reserved signal or the initial signal may be used to imply the configuration sequence number of the corresponding frame, or the resource transmitted by the reserved signal or the initial signal (for example, subcarrier, PRB)
  • the pattern of the frame or the RE implies the frame number of the frame, or the frame number of the frame is implicitly indicated by the reserved signal or the pattern of the silent resource sent by the initial signal.
  • the site can also send the configuration information of the frame to the adjacent site through the X2 port, and can send the occupation time information and the occupation start point information to the adjacent site.
  • the receiving end is configured to receive the configuration sequence number information of the frame sent by the belonging station.
  • the receiving end needs to determine the subframe or time when the station performs CCA/eCCA success, that is, determine the starting time point or subframe of the frame occupied by the station.
  • the receiving end further determines the uplink and downlink subframe configuration of the frame according to the configuration sequence number of the received frame or the parsed frame or the initial signal, according to the configuration sequence number of the received frame, and determines the belongs.
  • the receiving end may perform measurement in the determined downlink subframe and transmit data in the corresponding uplink subframe.
  • adjacent stations may consider selecting the same frame configuration information for frequency multiplexing transmission.
  • Frequency reuse of adjacent sites is prioritized in preempting successful site notifications It is reused within the occupied time. When the occupation time is exceeded, the preemption can be resumed.
  • the receiving end finds the configuration sequence number information of the unsent frame, the receiving is performed according to the configuration number of the original frame.
  • the frame length supported by the unlicensed carrier is 10 ms, and 10 subframes of 1 ms are included.
  • the configuration number of the candidate frame is from the configuration 0 to the configuration 10 described above.
  • the S' subframe is counted as a sub-frame structure in the present example as a downlink subframe (assuming that the downlink resources configured in the subframe are far more than the uplink resources).
  • the unlicensed carriers are used by other stations, and the configuration sequence number of the frames configured by other stations is assumed to be configuration 5.
  • the base station performs CCA/eCCA. After obtaining the success, the base station sends (sends) the first subframe (possibly a partial subframe) or the subsequent subframe in the unlicensed carrier (the corresponding subframe in the authorized carrier is also possible). The earlier the timing, the better, so that the UE can know in time the configuration number of the occupied frame.
  • FIG. 7 is a schematic diagram of a manner of LAA burst data transmission according to an embodiment of the present invention. Referring to FIG. 7, the base station performs CCA/eCCA successfully in the fourth subframe of frame n (the frame number and the subframe number are reference unlicensed carriers).
  • the S' subframe is regarded as the downlink
  • the uplink is 2 subframes.
  • the base station refers to the configuration sequence number of the foregoing candidate frame, and selects the sequence number of the frame that satisfies the requirement: the configuration number of the frame is 6. Because of the frame configuration 6, the first six are downlink subframes, the seventh one is S' subframe (see downlink), and the rest are three uplink subframes. At this time, the first 3 subframes in the current frame have passed and cannot be used.
  • the configuration sequence number of the frame is selected according to the downlink load requirement that satisfies the downlink load requirement after the successful CCA/eCCA successful subframe.
  • the base station transmits the configuration number 6 of the determined frame.
  • the UE After receiving the information of the configuration sequence number 6 of the frame, the UE determines the current frame and the current subframe position according to the timing of the authorized carrier paired by the unlicensed carrier (assuming that the base station is in the first sub-preemption) The frame number of the frame is sent in the frame, and the UE passes the detection. Or signaling to determine the subframe position of the configured sequence number information of the received frame, and in combination with the timing of the authorized carrier, the subframe may be determined to be the fourth subframe in the frame.
  • the UE further determines the positions of the downlink, the S′ subframe, and the uplink subframe in the frame configuration corresponding to the configuration sequence number 6, and determines that the fifth, sixth, and seventh frames in the frame occupied by the base station are downlink subframes, and the eighth is the S′ subframe.
  • the ninth is the uplink subframe, and the tenth subframe is the uplink. (In fact, the UE does not know whether the 10th subframe in the frame is used. According to the assumption of the implementation, the base station does not use the 10th subframe in the frame. That is, the UE does not send data in the 10th subframe of the frame because there is not so much load).
  • the configuration sequence number information of the frame may be explicitly signaled or indirectly notified by an implicit manner, for example, using an initial signal (also called a reserved signal) to implicitly notify, for example, the configuration number information of the frame may use explicit signaling. Notifications may also be indirectly notified in an implicit manner, such as by using different sequences of the reserved signals or frequency domain patterns to imply the configuration number of the frame.
  • the difference from the scheme 1 is that, when the station plans to preempt the unlicensed carrier, or before performing the preemption, the station determines the requirements of the uplink and downlink subframes according to the planned load, and determines the configuration sequence number of the corresponding frame, and send. At this time, it can only be sent by signaling. And this method is suitable for sending uplink and downlink configurations of burst data.
  • the site After the site preemption succeeds, the site performs the transmission according to the configuration sequence number of the previously sent frame.
  • the UE receives the configuration sequence number information of the frame that the station plans to send, and further determines whether the affiliate station performs CCA/eCCA successfully. If it is determined to be successful (can be determined by using the reserved signal or initial signal sent by the station), the UE sends the planned according to the plan.
  • the configuration number of the frame confirms the occupied uplink, S' subframe, and downlink subframe position.
  • the first subframe start position of the frame corresponding to the configuration sequence number of the station transmission frame may always be a subframe in which the station performs CCA/eCCA success, which is also suitable for the scheme 1.
  • the successful subframe position at which the station performs CCA/eCCA may be a given subframe within the frame, or any subframe within the frame. If you limit the maximum preemption of the site, you can only reach the boundary of the current frame, although there is Conducive to the determination of the timing relationship, suitable for the case of light load. If there is a site with a relatively large load demand, obviously there is a disadvantage in that it cannot be preempted across the frame boundary.
  • the base station selects the configuration sequence number of the corresponding frame according to the number of downlink subframes. (The configuration number of the corresponding frame is also selected according to the number of uplink subframes). Then send the configuration sequence number information of the frame.
  • the station After the site performs CCA/eCCA successfully, it is assumed that 5 downlink subframes (S' is regarded as a downlink subframe) and 5 uplink subframes are required. If the base station performs CCA/eCCA success in the second subframe in the frame (refer to the timing of the authorized carrier), then the station can be processed according to one of the following methods:
  • the station uses the second subframe as the occupied frame in the current unlicensed carrier.
  • the starting subframe of the period frame in this case, 5 subframes are required according to the downlink subframe in the payload (the subframe in which the CCA/eCCA is successfully performed is counted as the downlink subframe), so the configuration sequence number of the selected frame is configuration 4.
  • the timing of the frame number, the subframe number, and the slot number between the unlicensed carrier and the corresponding authorized carrier are not aligned.
  • the station selects the configuration number of the frame starting from the second subframe (including the second subframe), and there are five downlink subframes (S' is counted as downlink) in the frame, and the result of the selection is: configuration 5.
  • S' is counted as downlink
  • Both the station and the UE determine that the subframe in which the CCA/eCCA is successfully executed is located in the second subframe in the current frame (which is configuration 5).
  • the last uplink subframe required at this time will appear in the first subframe of the next frame. In this way, both the station and the UE consider that the first subframe in the next frame will be changed from the downlink subframe to the uplink.
  • the frame number of the frame is determined according to the number of subframes required for the uplink load.
  • the station selection starts from the second subframe (including the second subframe), and there are also configuration numbers of the frames of the five uplink subframes in the frame.
  • configuration 4 The subframe in which both the station and the UE consider that the CCA/eCCA is successfully executed is the second subframe in the configuration 4 of the current frame.
  • the last downlink subframe required at this time will appear in the first subframe of the next frame. In this way, the first subframe in the next frame will be occupied by the station and used as a downlink subframe.
  • Unlicensed carriers have different regulatory requirements in different countries, such as the maximum allowed in Europe.
  • the length is 13ms
  • the maximum time allowed in Japan is 4ms.
  • the burst data is enumerated by taking 10ms as an example.
  • the principle of the present application is equally applicable.
  • the unlicensed carrier occupation in the LTE system can be implemented in the embodiment of the present invention, and the related LTE physical channel signaling is used to the greatest extent, so that the impact on the LTE system is minimized.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the embodiment of the invention realizes that the burst data can be efficiently transmitted in a limited time within a time period of preempting the unlicensed carrier, thereby realizing the occupation of the unlicensed carrier in the LTE system.

Abstract

A method and apparatus for data transmission in an unauthorized carrier. The method comprises: preparing burst data; determining an uplink sub-frame and a downlink sub-frame required for transmitting the burst data according to the burst data; obtaining an unauthorized carrier; mapping first burst data corresponding to the uplink sub-frame and second burst data corresponding to the downlink sub-frame into a specified sub-frame of the unauthorized carrier; and sending and/or receiving the burst data via the specified sub-frame. The present invention realizes that within the time of preempting an unauthorized carrier each time, burst data can be transmitted efficiently within a limited time in an effective manner, thereby realizing occupation of an unauthorized carrier in an LTE system.

Description

非授权载波中数据的传输方法及装置Method and device for transmitting data in unlicensed carrier 技术领域Technical field
本文涉及通信领域,具体而言,涉及一种非授权载波中数据的传输方法及装置。This document relates to the field of communications, and in particular to a method and apparatus for transmitting data in an unlicensed carrier.
背景技术Background technique
截止目前,众所周知长期演进(Long-Term Evolution,简称为LTE)是部署在授权载波中运营的。但是随着LTE的演进,在2013年下半年一些公司(例如美国高通公司)提出了:建议研究LTE部署在非授权载波中的课题。但是截止当前仍然未被LTE接受和立项。Up to now, Long-Term Evolution (LTE) is known to be deployed in licensed carriers. However, with the evolution of LTE, in the second half of 2013, some companies (such as Qualcomm of the United States) proposed to study the issue of LTE deployment in unlicensed carriers. However, it has not been accepted and approved by LTE until now.
高通公司给出的立项理由主要包括:随着数据业务的快速增长,在不久的将来,授权频谱将不能再承受下如此巨大的数据量。所以建议考虑在非授权频谱中部署LTE,通过非授权频谱来分担授权载波中的数据流量。The reasons given by Qualcomm include: With the rapid growth of data services, in the near future, the licensed spectrum will no longer be able to withstand such a huge amount of data. Therefore, it is recommended to consider deploying LTE in the unlicensed spectrum to share the data traffic in the authorized carrier through the unlicensed spectrum.
另外,对于非授权频谱,也是存在很多优势的。例如,非授权频谱具有下面的特征和优势:In addition, there are many advantages for unlicensed spectrum. For example, the unlicensed spectrum has the following characteristics and advantages:
1.免费或低费用(不需要购买非频谱,频谱资源为零成本)。1. Free or low cost (no need to purchase non-spectrum, spectrum resources are zero cost).
2.准入要求低,成本低(个人、企业都可以参与部署,设备商的设备可以任意)。2. Low access requirements and low cost (individuals and enterprises can participate in the deployment, and the equipment of the equipment manufacturer can be arbitrarily).
3.共享资源(多个不同系统都运营其中时或者同一系统的不同运营商运营其中时,可以考虑一些共享资源的方式,提高频谱效率)。3. Sharing resources (When multiple different systems are operating or when different operators of the same system are operating, you can consider some ways of sharing resources to improve spectrum efficiency).
4.无线接入技术多(跨不同的通信标准,协作难,网络拓扑多样)。4. There are many wireless access technologies (cross-communication standards, difficult collaboration, and diverse network topologies).
5.无线接入站点多(用户数量大,协作难度大,集中式管理开销大)。5. There are many wireless access sites (large number of users, difficult cooperation, and large centralized management overhead).
6.应用多(从资料看,多业务被提及可以在其中运营,例如Machine to machine(M2M)、Vehicle to vehicle(V2V))。6. There are many applications (from the data point of view, multiple services are mentioned to be able to operate in them, such as Machine to machine (M2M), Vehicle to vehicle (V2V)).
上述的基本特征,决定了非授权频谱可能是无线通信系统一个重要的演 进方向,但是同时也存在诸多问题。例如,非授权频谱中将存在各种各样的无线系统,彼此之间难于协调,干扰严重。The above basic characteristics determine that the unlicensed spectrum may be an important performance of the wireless communication system. In the direction, but there are also many problems. For example, there will be a variety of wireless systems in the unlicensed spectrum, which are difficult to coordinate with each other and have serious interference.
LTE目前是运行在授权载波中的,具有可以预见的资源使用,当LTE运行在非授权载波中时,那么只有站点(包括基站、用户设备(User Equipment,简称为UE))抢占到非授权载波使用权后,才能获得有限的传输资源,例如限制使用的最大时长、可能会限制使用为下行或上行目的。使得站点只能是机会性的传输每次突发的数据,但是由于LTE目前是按照固定的或半静态的帧结构进行传输的(例如LTE时分双工(Time Division Duplex,简称为TDD)),每次的抢占到非授权载波的时间内,如何设置使得该次突发数据能够有效的在有限的时间内高效传输,目前还未提出有效的解决方案。The LTE is currently running on the authorized carrier and has the foreseeable resource usage. When the LTE is running on the unlicensed carrier, only the site (including the base station and the user equipment (UE)) preempts the unlicensed carrier. After the right to use, you can obtain limited transmission resources, such as limiting the maximum duration of use, and may limit the use to downlink or uplink purposes. This makes the site only transmit opportunistic data for each burst, but since LTE is currently transmitted according to a fixed or semi-static frame structure (for example, LTE Time Division Duplex (TDD)), During each time of preemption to the unlicensed carrier, how to set up the burst data can be efficiently transmitted in a limited time, and no effective solution has been proposed yet.
另外,对于相关的LTE TDD而言,在给定帧结构中存在给定的上下行配比关系,但是显然这种配比关系是根据授权载波下资源不需要抢占的前提下定义出来,但是在非授权载波时,由于抢占是机会性的,按照相关的TDD帧结构会存在效率低下的问题。新的TDD帧结构应该被设计,且结合突发数据的传输需求来联合考虑。In addition, for the related LTE TDD, there is a given uplink-downlink ratio relationship in a given frame structure, but it is obvious that the ratio relationship is defined according to the premise that the resources under the licensed carrier do not need to be preempted, but When the unlicensed carrier is used, since the preemption is opportunistic, there is a problem of inefficiency according to the related TDD frame structure. The new TDD frame structure should be designed and combined with the transmission requirements of burst data.
针对相关技术中,在抢占到非授权载波时,如何设计用于通过非授权载波进行数据传输的帧结构,还未提出有效的解决方案。For the related art, how to design a frame structure for data transmission through an unlicensed carrier when preempting an unlicensed carrier has not proposed an effective solution.
发明内容Summary of the invention
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.
本发明实施例提供了一种非授权载波中数据的传输方法及装置,以实现在每次抢占到的非授权载波的时间内,使得突发数据能够有效的在有限的时间内高效传输。The embodiment of the invention provides a method and a device for transmitting data in an unlicensed carrier, so as to enable the burst data to be efficiently transmitted in a limited time within a time period of preempting the unlicensed carrier.
根据本发明实施例的一个方面,提供了一种非授权载波中数据的传输方法,包括:准备突发数据Burst Data;根据所述突发数据确定传输所述突发数据需要的上行子帧和下行子帧;获取非授权载波;将所述上行子帧对应的第一突发数据和所述下行子帧对应的第二突发数据映射到所述非授权载波的指 定子帧中;通过所述指定子帧发送和/或接收所述突发数据。According to an aspect of the embodiments of the present invention, a method for transmitting data in an unlicensed carrier is provided, including: preparing burst data Burst Data; determining, according to the burst data, an uplink subframe required for transmitting the burst data a downlink subframe; acquiring an unlicensed carrier; mapping the first burst data corresponding to the uplink subframe and the second burst data corresponding to the downlink subframe to the unlicensed carrier In the stator frame; transmitting and/or receiving the burst data through the designated subframe.
可选地,获取非授权载波包括:通过执行空闲信道评估CCA和/或扩展的空闲信道评估eCCA获取所述非授权载波。Optionally, obtaining the unlicensed carrier comprises: acquiring the unlicensed carrier by performing an idle channel assessment CCA and/or an extended idle channel assessment eCCA.
可选地,将所述上行子帧对应的第一突发数据和所述下行子帧对应的第二突发数据映射到所述非授权载波的指定子帧中包括:从执行CCA和/或eCCA成功的子帧中开始映射;或者,从执行CCA和/或eCCA成功的子帧之后的第一个子帧中开始映射。Optionally, mapping the first burst data corresponding to the uplink subframe and the second burst data corresponding to the downlink subframe to the specified subframe of the unlicensed carrier includes: performing CCA and/or The mapping starts in the successful subframe of the eCCA; or, the mapping starts from the first subframe after the subframe in which the CCA and/or eCCA is successful.
可选地,所述非授权载波的帧的定时与对应的授权载波的帧的定时相同,所述非授权载波的子帧的定时与对应的授权载波的子帧的定时相同。Optionally, the timing of the frame of the unlicensed carrier is the same as the timing of the frame of the corresponding authorized carrier, and the timing of the subframe of the unlicensed carrier is the same as the timing of the subframe of the corresponding authorized carrier.
可选地,所述下行子帧位于所述上行子帧之前。Optionally, the downlink subframe is located before the uplink subframe.
可选地,准备突发数据Burst Data包括:在所述突发数据的数量为固定值时,通过以下方式准备所述突发数据:首先按照所述下行子帧对应的第二突发数据需求准备所述突发数据,其次按照所述上行子帧对应的第一突发数据需求准备所述突发数据。Optionally, preparing the burst data Burst Data includes: when the number of the burst data is a fixed value, preparing the burst data by: first, according to the second burst data requirement corresponding to the downlink subframe The burst data is prepared, and the burst data is prepared according to the first burst data requirement corresponding to the uplink subframe.
可选地,在准备所述突发数据的过程中,当所述上行子帧对应的第一突发数据需求不能满足所述突发数据的数量时,补充虚假的所述上行子帧对应的第一突发数据来填充满所述突发数据的数量。Optionally, in the process of preparing the burst data, when the first burst data requirement corresponding to the uplink subframe cannot meet the quantity of the burst data, supplementing the corresponding corresponding uplink subframe The first burst of data fills the amount of burst data.
可选地,在所述突发数据的数量为固定值时,形成与所述突发数据对应的配比信息;其中,当所述突发数据的数量为给定值M时,所述突发数据的每一种配比信息满足:X个下行子帧、Z个特殊数据子帧,Y个上行子帧,其中,X、Y、Z、M取值为整数,X、Y、Z分别小于M且大于0,或等于M,或等于0;且X、Y、Z的取值满足等式:X+Y+Z=M。Optionally, when the number of the burst data is a fixed value, forming ratio information corresponding to the burst data; wherein, when the quantity of the burst data is a given value M, the burst Each of the matching information of the sent data satisfies: X downlink subframes, Z special data subframes, and Y uplink subframes, where X, Y, Z, and M are integers, and X, Y, and Z respectively Less than M and greater than 0, or equal to M, or equal to 0; and the values of X, Y, Z satisfy the equation: X + Y + Z = M.
可选地,形成与所述突发数据对应的配比信息包括:按照所述下行子帧的数量形成所述配比信息。Optionally, forming the ratio information corresponding to the burst data includes: forming the ratio information according to the number of the downlink subframes.
可选地,形成与所述突发数据对应的配比信息之后还包括:将所述配比信息通过空口发给接收端。Optionally, the forming the matching information corresponding to the burst data further includes: sending the ratio information to the receiving end through the air interface.
可选地,形成与所述突发数据对应的配比信息之后还包括:第一站点将所述配比信息通过X2接口发送给第二站点。 Optionally, the forming the matching information corresponding to the burst data further includes: the first station sending the matching information to the second station by using an X2 interface.
可选地,当使用多个非授权载波同时传输所述突发数据时,所述多个非授权载波使用相同的配比信息传输所述突发数据。Optionally, when the burst data is simultaneously transmitted using a plurality of unlicensed carriers, the plurality of unlicensed carriers transmit the burst data using the same proportion information.
可选地,第一站点将所述配比信息通过X2接口发送给第二站点之后还包括:在所述第二站点与所述第一站点复用所述非授权载波时,所述配比信息还用于所述第二站点的突发数据配比。Optionally, after the first station sends the matching information to the second station by using the X2 interface, the method further includes: when the second station multiplexes the unlicensed carrier with the first station, the ratio is The information is also used for the burst data ratio of the second site.
可选地,所述配比信息中的下行子帧的数量大于或者等于通过所述第二站点确定的所述第二站点的突发数据的配比信息中的下行子帧的数量。Optionally, the number of downlink subframes in the ratio information is greater than or equal to the number of downlink subframes in the ratio information of the burst data of the second station determined by the second station.
可选地,在所述第二站点与所述第一站点复用所述非授权载波时,并且所述第二站点执行CCA和/或eCCA时的能量检测门限满足复用所述非授权载波时的能量检测门限时,所述第二站点根据自己的突发数据确定与所述第二站点的突发数据对应的配比信息。Optionally, when the second station multiplexes the unlicensed carrier with the first station, and the energy detection threshold when the second station performs CCA and/or eCCA, the multiplexing of the unlicensed carrier is satisfied. When the energy detection threshold is timed, the second station determines the ratio information corresponding to the burst data of the second station according to its own burst data.
可选地,所述指定子帧所在帧的帧长是固定的或半静态配置的,且所述帧中的指定子帧的上行或下行属性由对应的突发数据确定。Optionally, the frame length of the frame in which the specified subframe is located is fixed or semi-statically configured, and an uplink or downlink attribute of the specified subframe in the frame is determined by corresponding burst data.
根据本发明实施例的另一个方面,还提供了一种非授权载波中数据的传输装置,包括:准备模块,设置为准备突发数据Burst Data;确定模块,设置为根据所述突发数据确定传输所述突发数据需要的上行子帧和下行子帧;获取模块,设置为获取非授权载波;映射模块,设置为将所述上行子帧对应的第一突发数据和所述下行子帧对应的第二突发数据映射到所述非授权载波的指定子帧中;处理模块,设置为通过所述指定子帧发送和/或接收所述突发数据。According to another aspect of the present invention, a device for transmitting data in an unlicensed carrier is further provided, comprising: a preparation module, configured to prepare burst data Burst Data; and a determining module, configured to determine according to the burst data An uplink subframe and a downlink subframe that are required to transmit the burst data; an acquiring module, configured to acquire an unlicensed carrier; and a mapping module, configured to: first burst data corresponding to the uplink subframe and the downlink subframe Corresponding second burst data is mapped into a designated subframe of the unlicensed carrier; and the processing module is configured to send and/or receive the burst data through the designated subframe.
可选地,所述获取模块是设置为通过执行空闲信道评估CCA和/或扩展的空闲信道评估eCCA获取所述非授权载波。Optionally, the obtaining module is configured to acquire the unlicensed carrier by performing an idle channel evaluation CCA and/or an extended idle channel evaluation eCCA.
可选地,所述映射模块是设置为从执行CCA和/或eCCA成功的子帧中开始映射;或者,从执行CCA和/或eCCA成功的子帧之后的第一个子帧中开始映射。Optionally, the mapping module is configured to start mapping from a subframe in which CCA and/or eCCA is successful; or to start mapping in a first subframe after a subframe in which CCA and/or eCCA is successful.
可选地,所述非授权载波的帧的定时与对应的授权载波的帧的定时相同,所述非授权载波的子帧的定时与对应的授权载波的子帧的定时相同。Optionally, the timing of the frame of the unlicensed carrier is the same as the timing of the frame of the corresponding authorized carrier, and the timing of the subframe of the unlicensed carrier is the same as the timing of the subframe of the corresponding authorized carrier.
可选地,所述下行子帧位于所述上行子帧之前。 Optionally, the downlink subframe is located before the uplink subframe.
可选地,所述准备模块是设置为在所述突发数据的数量为固定值时,通过以下方式准备所述突发数据:首先按照所述下行子帧对应的第二突发数据需求准备所述突发数据,其次按照所述上行子帧对应的第一突发数据需求准备所述突发数据。Optionally, the preparation module is configured to prepare the burst data in the following manner when the number of the burst data is a fixed value: first, prepare according to the second burst data requirement corresponding to the downlink subframe The burst data is prepared by the burst data according to the first burst data requirement corresponding to the uplink subframe.
可选地,所述准备模块是设置为在准备所述突发数据的过程中,当所述上行子帧对应的第一突发数据需求不能满足所述突发数据的数量时,补充虚假的所述上行子帧对应的第一突发数据来填充满所述突发数据的数量。Optionally, the preparation module is configured to add a false one when the first burst data requirement corresponding to the uplink subframe cannot satisfy the quantity of the burst data in the process of preparing the burst data. The first burst data corresponding to the uplink subframe is filled with the number of burst data.
可选地,所述装置还包括:配比模块,设置为在所述突发数据的数量为固定值时,形成与所述突发数据对应的配比信息;其中,当所述突发数据的数量为给定值M时,所述突发数据的每一种配比信息满足:X个下行子帧、Z个特殊数据子帧,Y个上行子帧,其中,X、Y、Z、M取值为整数,X、Y、Z分别小于M且大于0,或等于M,或等于0;且X、Y、Z的取值满足等式:X+Y+Z=M。Optionally, the device further includes: a matching module, configured to form ratio information corresponding to the burst data when the number of burst data is a fixed value; wherein, when the burst data When the quantity is a given value M, each of the ratio information of the burst data satisfies: X downlink subframes, Z special data subframes, and Y uplink subframes, where X, Y, Z, M is an integer, X, Y, and Z are respectively less than M and greater than 0, or equal to M, or equal to 0; and the values of X, Y, and Z satisfy the equation: X+Y+Z=M.
可选地,所述配比模块是设置为通过如下方式实现形成与所述突发数据对应的配比信息:按照所述下行子帧的数量形成所述配比信息。Optionally, the ratio module is configured to form ratio information corresponding to the burst data by forming the ratio information according to the number of the downlink subframes.
可选地,所述装置还包括:发送模块,设置为将所述配比信息通过空口发给接收端。Optionally, the device further includes: a sending module, configured to send the proportioning information to the receiving end through the air interface.
可选地,所述处理模块是设置为当使用多个非授权载波同时传输所述突发数据时,所述多个非授权载波使用相同的配比信息传输所述突发数据。Optionally, the processing module is configured to: when the plurality of unlicensed carriers are used to simultaneously transmit the burst data, the plurality of unlicensed carriers transmit the burst data by using the same proportion information.
可选地,所述指定子帧所在帧的帧长是固定的或半静态配置的,且所述帧中的指定子帧的上行或下行属性由对应的突发数据确定。Optionally, the frame length of the frame in which the specified subframe is located is fixed or semi-statically configured, and an uplink or downlink attribute of the specified subframe in the frame is determined by corresponding burst data.
本发明实施例还提供了一种数据传输方法,其中,The embodiment of the invention further provides a data transmission method, wherein
非授权载波中站点采用帧进行数据传输;The site in the unlicensed carrier uses frames for data transmission;
所述帧内包括多个等长的子帧;The frame includes a plurality of subframes of equal length;
所述子帧由待传输的突发数据决定为上行子帧或下行子帧。The subframe is determined by the burst data to be transmitted as an uplink subframe or a downlink subframe.
可选的, Optional,
所述非授权载波使用的帧的帧号、子帧号与配对的授权载波使用的帧的帧号、子帧号对齐。The frame number and the subframe number of the frame used by the unlicensed carrier are aligned with the frame number and the subframe number of the frame used by the paired authorized carrier.
可选的,Optional,
所述帧还包括特殊子帧S’子帧,S’子帧中包括下行传输和/或上行传输。The frame also includes a special subframe S' subframe, and the S' subframe includes downlink transmission and/or uplink transmission.
可选的,Optional,
在所述突发数据的数量为固定值时,所述帧中形成与所述突发数据对应的配比信息;其中,当所述突发数据的数量为给定值M时,所述突发数据的每一种配比信息满足:X个下行子帧、Z个特殊数据子帧,Y个上行子帧,其中,X、Y、Z、M取值为整数,X、Y、Z分别小于M且大于0,或等于M,或等于0;且X、Y、Z的取值满足等式:X+Y+Z=M。When the number of the burst data is a fixed value, the ratio information corresponding to the burst data is formed in the frame; wherein, when the number of the burst data is a given value M, the burst Each of the matching information of the sent data satisfies: X downlink subframes, Z special data subframes, and Y uplink subframes, where X, Y, Z, and M are integers, and X, Y, and Z respectively Less than M and greater than 0, or equal to M, or equal to 0; and the values of X, Y, Z satisfy the equation: X + Y + Z = M.
可选的,Optional,
所述突发数据决定的上行子帧或下行子帧的信令,或者所述帧的配置序号信息,通过下行控制信息DCI进行传输,或者通过预留信号或初始信号进行暗含传输。The signaling of the uplink subframe or the downlink subframe determined by the burst data, or the configuration sequence number information of the frame, is transmitted by using the downlink control information DCI, or implicitly transmitted by using a reserved signal or an initial signal.
可选的,Optional,
所述子帧由待传输的突发数据决定为上行子帧或下行子帧之前,不定义所述子帧为上行子帧或下行子帧。Before the subframe is determined by the burst data to be transmitted as an uplink subframe or a downlink subframe, the subframe is not defined as an uplink subframe or a downlink subframe.
通过本发明实施例,采用准备突发数据Burst Data;根据该突发数据确定传输该突发数据需要的上行子帧和下行子帧;获取非授权载波;将上行子帧对应的第一突发数据和下行子帧对应的第二突发数据映射到非授权载波的指定子帧中;通过该指定子帧发送和/或接收该突发数据。本发明实施例实现了在每次抢占到的非授权载波的时间内,使得突发数据能够有效的在有限的时间内高效传输,进而实现了在LTE系统中非授权载波的占用。According to the embodiment of the present invention, the burst data Burst Data is used; the uplink subframe and the downlink subframe required for transmitting the burst data are determined according to the burst data; the unlicensed carrier is acquired; and the first burst corresponding to the uplink subframe is obtained. The data and the second burst data corresponding to the downlink subframe are mapped into a designated subframe of the unlicensed carrier; the burst data is transmitted and/or received through the designated subframe. The embodiment of the invention realizes that the burst data can be efficiently transmitted in a limited time within a time period of preempting the unlicensed carrier, thereby realizing the occupation of the unlicensed carrier in the LTE system.
在阅读并理解了附图和详细描述后,可以明白其他方面。Other aspects will be apparent upon reading and understanding the drawings and detailed description.
附图概述 BRIEF abstract
图1是根据本发明实施例的非授权载波中数据的传输方法的流程图;1 is a flowchart of a method of transmitting data in an unlicensed carrier according to an embodiment of the present invention;
图2是根据本发明实施例的非授权载波中数据的传输装置的结构框图;2 is a structural block diagram of a data transmission apparatus in an unlicensed carrier according to an embodiment of the present invention;
图3是根据本发明实施例的非授权载波中数据的传输装置的结构框图(一);3 is a structural block diagram (1) of a data transmission apparatus in an unlicensed carrier according to an embodiment of the present invention;
图4是根据本发明实施例的非授权载波中数据的传输装置的结构框图(二);4 is a structural block diagram (2) of a data transmission apparatus in an unlicensed carrier according to an embodiment of the present invention;
图5是根据本发明实施例的LAA burst data的传输示意图;FIG. 5 is a schematic diagram of transmission of LAA burst data according to an embodiment of the present invention; FIG.
图6是根据本发明实施例的LAA burst data与帧的上下行子帧属性示意图;FIG. 6 is a schematic diagram of LAA burst data and uplink and downlink subframe attributes of a frame according to an embodiment of the present invention; FIG.
图7是根据本发明实施例的LAA burst data传输一种方式示意图。7 is a schematic diagram of a manner of LAA burst data transmission according to an embodiment of the present invention.
本发明的实施方式Embodiments of the invention
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.
需要说明的是,本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order.
在本实施例中提供了一种非授权载波中数据的传输方法,该方法的硬件执行主体可以但不限于是基站;图1是根据本发明实施例的非授权载波中数据的传输方法的流程图,如图1所示,该流程包括如下步骤:In this embodiment, a method for transmitting data in an unlicensed carrier is provided. The hardware execution body of the method may be, but is not limited to, a base station. FIG. 1 is a flowchart of a method for transmitting data in an unlicensed carrier according to an embodiment of the present invention. Figure, as shown in Figure 1, the process includes the following steps:
步骤S102,准备突发数据Burst Data;Step S102, preparing burst data Burst Data;
步骤S104,根据突发数据确定传输该突发数据需要的上行子帧和下行子帧;Step S104, determining, according to the burst data, an uplink subframe and a downlink subframe required for transmitting the burst data;
步骤S106,获取非授权载波;Step S106, acquiring an unlicensed carrier;
步骤S108,将上行子帧对应的第一突发数据和下行子帧对应的第二突发数据映射到非授权载波的指定子帧中;Step S108, mapping the first burst data corresponding to the uplink subframe and the second burst data corresponding to the downlink subframe to the designated subframe of the unlicensed carrier;
步骤S110,通过指定子帧发送和/或接收突发数据。 Step S110, transmitting and/or receiving burst data by specifying a subframe.
通过上述步骤,根据突发数据确定传输该突发数据需要的上行子帧和下行子帧,并将上行子帧对应的第一突发数据和下行子帧对应的第二突发数据映射到获取到的非授权载波的指定子帧中,从而通过指定子帧发送和/或接收突发数据,相比于相关技术中,由于抢占到的非授权载波是机会性的,按照相关的TDD帧结构会存在效率低下的问题,上述步骤实现了在每次抢占到的非授权载波的时间内,使得突发数据能够有效的在有限的时间内高效传输,进而实现了在LTE系统中非授权载波的占用。上述步骤中并不一定严格的按照上述顺序执行,在不冲突的情况下,可以并行或调换顺序,例如S106可以先执行,再执行S102、S104。And determining, by using the foregoing step, the uplink subframe and the downlink subframe that are required to transmit the burst data, and mapping the first burst data corresponding to the uplink subframe and the second burst data corresponding to the downlink subframe to the obtained In a specified subframe of the unlicensed carrier, thereby transmitting and/or receiving burst data through the designated subframe, compared to the related art, since the preempted unlicensed carrier is opportunistic, according to the related TDD frame structure There may be a problem of inefficiency. The above steps enable the burst data to be efficiently transmitted in a limited time within a time period of each unlicensed carrier that is preempted, thereby realizing the unlicensed carrier in the LTE system. Occupied. The above steps are not necessarily strictly performed in the above-described order. In the case of no conflict, the order may be switched in parallel or in another order. For example, S106 may be executed first, and then S102 and S104 are executed.
上述步骤S106中涉及到获取非授权载波,需要说明的是,可以通过多种方式获取到非授权载波,在一个可选实施例中,通过执行空闲信道评估CCA和/或扩展的空闲信道评估eCCA获取非授权载波。In the foregoing step S106, the unlicensed carrier is acquired. It should be noted that the unlicensed carrier can be obtained in multiple manners. In an optional embodiment, the eCCA is evaluated by performing the idle channel evaluation CCA and/or the extended idle channel. Obtain an unlicensed carrier.
上述步骤S108中涉及到将该上行子帧对应的第一突发数据和该下行子帧对应的第二突发数据映射到该非授权载波的指定子帧中,在一个可选实施例中,从执行CCA和/或eCCA成功的子帧中开始映射,在另一个可选实施例中,从执行CCA和/或eCCA成功的子帧之后的第一个子帧中开始映射。In the foregoing step S108, the first burst data corresponding to the uplink subframe and the second burst data corresponding to the downlink subframe are mapped into the designated subframe of the unlicensed carrier. In an optional embodiment, Mapping begins in a subframe in which CCA and/or eCCA is successful, and in another alternative embodiment, mapping begins in the first subframe after the successful CCA and/or eCCA successful subframe.
在一个可选实施例中,非授权载波的帧的定时与对应的授权载波的帧的定时相同,非授权载波的子帧的定时与对应的授权载波的子帧的定时相同。In an optional embodiment, the timing of the frame of the unlicensed carrier is the same as the timing of the frame of the corresponding authorized carrier, and the timing of the subframe of the unlicensed carrier is the same as the timing of the subframe of the corresponding authorized carrier.
在一个可选实施例中,通过该非授权载波发送的参考信号的生成依据为以下至少之一:非授权载波的帧的帧号、上行子帧和/或该下行子帧的帧号、非授权载波的时隙号。In an optional embodiment, the reference signal sent by the unlicensed carrier is generated according to at least one of the following: a frame number of the frame of the unlicensed carrier, an uplink subframe, and/or a frame number of the downlink subframe, and a non- The slot number of the authorized carrier.
在一个可选实施例中,下行子帧位于该上行子帧之前。In an optional embodiment, the downlink subframe is located before the uplink subframe.
上述步骤S102中涉及到准备突发数据Burst Data,在一个可选实施例中,在突发数据的数量为固定值时,通过以下方式准备该突发数据:首先按照下行子帧对应的第二突发数据需求准备该突发数据,其次按照上行子帧对应的第一突发数据需求准备该突发数据。In the foregoing step S102, the burst data Burst Data is involved. In an optional embodiment, when the number of burst data is a fixed value, the burst data is prepared by: firstly according to the second corresponding to the downlink subframe. The burst data needs to prepare the burst data, and secondly prepares the burst data according to the first burst data requirement corresponding to the uplink subframe.
在一个可选实施例中,在准备该突发数据的过程中,当上行子帧对应的第一突发数据需求不能满足该突发数据的数量时,补充虚假的该上行子帧对 应的第一突发数据来填充满该突发数据的数量。In an optional embodiment, in the process of preparing the burst data, when the first burst data requirement corresponding to the uplink subframe cannot satisfy the number of the burst data, the fake uplink subframe pair is added. The first burst of data should be filled to fill the amount of burst data.
在一个可选实施例中,在突发数据的数量为固定值时,形成与该突发数据对应的配比信息;其中,当突发数据的数量为给定值M时,突发数据的每一种配比信息满足:X个下行子帧、Z个特殊数据子帧,Y个上行子帧,其中,X、Y、Z、M取值为整数,X、Y、Z分别小于M大于0,或等于M,或等于0;且X、Y、Z的取值满足等式:X+Y+Z=M。例如,在一个可选实施例中,Z为1。In an optional embodiment, when the number of burst data is a fixed value, matching ratio information corresponding to the burst data is formed; wherein, when the number of burst data is a given value M, the burst data is Each ratio information satisfies: X downlink subframes, Z special data subframes, and Y uplink subframes, where X, Y, Z, and M are integers, and X, Y, and Z are smaller than M, respectively. 0, or equal to M, or equal to 0; and the values of X, Y, and Z satisfy the equation: X+Y+Z=M. For example, in an alternate embodiment, Z is one.
在上述形成与突发数据对应的配比信息的过程中,在一个可选实施例中,按照下行子帧的数量形成该配比信息。In the above process of forming the ratio information corresponding to the burst data, in an optional embodiment, the ratio information is formed according to the number of downlink subframes.
在一个可选实施例中,形成与该突发数据对应的配比信息之后,将该配比信息通过空口发给接收端。在另一个可选实施例中,第一站点形成与该突发数据对应的配比信息之后,第一站点将配比信息通过X2接口发送给其他站点。In an optional embodiment, after the matching information corresponding to the burst data is formed, the matching information is sent to the receiving end through the air interface. In another optional embodiment, after the first station forms the matching information corresponding to the burst data, the first station sends the matching information to the other station through the X2 interface.
当使用多个非授权载波同时传输该突发数据时,在一个可选实施例中,多个非授权载波使用相同的配比信息传输该突发数据。When the burst data is simultaneously transmitted using a plurality of unlicensed carriers, in an alternative embodiment, the plurality of unlicensed carriers transmit the burst data using the same proportioning information.
第一站点将配比信息通过X2接口发送给第二站点之后,在一个可选实施例中,在第二站点与第一站点复用该非授权载波时,该配比信息还用于第二站点的突发数据配比。After the first station sends the matching information to the second station through the X2 interface, in an optional embodiment, when the second station multiplexes the unlicensed carrier with the first station, the matching information is also used for the second The burst data ratio of the site.
在一个可选实施例中,配比信息中的下行子帧的数量大于或者等于通过第二站点确定的该第二站点的突发数据的配比信息中的下行子帧的数量。In an optional embodiment, the number of downlink subframes in the ratio information is greater than or equal to the number of downlink subframes in the ratio information of the burst data of the second station determined by the second station.
在一个可选实施例中,在第二站点与该第一站点复用该非授权载波时,并且第二站点执行CCA和/或eCCA时的能量检测门限满足复用该非授权载波时的能量检测门限时,第二站点根据自己的突发数据确定与该第二站点的突发数据对应的配比信息。In an optional embodiment, when the second station multiplexes the unlicensed carrier with the first station, and the second station performs CCA and/or eCCA, the energy detection threshold satisfies the energy when multiplexing the unlicensed carrier. When detecting the threshold, the second station determines the ratio information corresponding to the burst data of the second station according to its own burst data.
在一个可选实施例中,指定子帧所在帧的帧长是固定的或半静态配置的,且帧中的指定子帧的上行或下行属性由对应的突发数据确定。In an optional embodiment, the frame length of the frame in which the subframe is specified is fixed or semi-statically configured, and the uplink or downlink attributes of the designated subframe in the frame are determined by the corresponding burst data.
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现,当然也 可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本发明的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端设备(可以是手机,计算机,服务器,或者网络设备等)执行本发明各个实施例所述的方法。Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course It can be done through hardware, but in many cases the former is a better implementation. Based on such understanding, the technical solution of the present invention in essence or the contribution to the related art can be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, CD-ROM). The instructions include a number of instructions for causing a terminal device (which may be a cell phone, computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention.
在本实施例中还提供了一种非授权载波中数据的传输装置,该装置用于实现上述实施例及可选实施方式,已经进行过说明的不再赘述。如以下所使用的,术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现,但是硬件,或者软件和硬件的组合的实现也是可能并被构想的。In this embodiment, a device for transmitting data in an unlicensed carrier is also provided, and the device is used to implement the foregoing embodiments and optional embodiments, and details are not described herein. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
图2是根据本发明实施例的非授权载波中数据的传输装置的结构框图,如图2所示,该装置包括:准备模块22,设置为准备突发数据Burst Data;确定模块24,设置为根据突发数据确定传输该突发数据需要的上行子帧和下行子帧;获取模块26,设置为获取非授权载波;映射模块28,设置为将上行子帧对应的第一突发数据和下行子帧对应的第二突发数据映射到非授权载波的指定子帧中;处理模块30,设置为通过指定子帧发送和/或接收突发数据。2 is a structural block diagram of a data transmission apparatus in an unlicensed carrier according to an embodiment of the present invention. As shown in FIG. 2, the apparatus includes: a preparation module 22 configured to prepare burst data Burst Data; and a determination module 24 configured to And determining, by the burst data, an uplink subframe and a downlink subframe that are required to transmit the burst data; the acquiring module 26 is configured to acquire an unlicensed carrier; and the mapping module 28 is configured to set the first burst data and the downlink corresponding to the uplink subframe. The second burst data corresponding to the subframe is mapped into a designated subframe of the unlicensed carrier; the processing module 30 is configured to transmit and/or receive the burst data by the designated subframe.
可选地,获取模块26是设置为通过执行空闲信道评估CCA和/或扩展的空闲信道评估eCCA获取该非授权载波。Optionally, the acquisition module 26 is configured to acquire the unlicensed carrier by performing an idle channel assessment CCA and/or an extended idle channel assessment eCCA.
可选地,映射模块28是设置为从执行CCA和/或eCCA成功的子帧中开始映射;或者,从执行CCA和/或eCCA成功的子帧之后的第一个子帧中开始映射。Optionally, the mapping module 28 is configured to start mapping from a subframe in which CCA and/or eCCA is successful; or to start mapping in a first subframe after a subframe in which CCA and/or eCCA is successful.
可选地,非授权载波的帧的定时与对应的授权载波的帧的定时相同,非授权载波的子帧的定时与对应的授权载波的子帧的定时相同。Optionally, the timing of the frame of the unlicensed carrier is the same as the timing of the frame of the corresponding authorized carrier, and the timing of the subframe of the unlicensed carrier is the same as the timing of the subframe of the corresponding authorized carrier.
可选地,通过非授权载波发送的参考信号的生成依据为以下至少之一:该非授权载波的帧的帧号、该上行子帧和/或该下行子帧的帧号、该非授权载波的时隙号。Optionally, the reference signal sent by the unlicensed carrier is generated according to at least one of: a frame number of the frame of the unlicensed carrier, a frame number of the uplink subframe and/or the downlink subframe, and the unlicensed carrier. The slot number.
可选地,该下行子帧位于该上行子帧之前。Optionally, the downlink subframe is located before the uplink subframe.
可选地,准备模块22是设置为在该突发数据的数量为固定值时,通过以 下方式准备该突发数据:首先按照该下行子帧对应的第二突发数据需求准备该突发数据,其次按照该上行子帧对应的第一突发数据需求准备该突发数据。Optionally, the preparation module 22 is configured to pass when the number of burst data is a fixed value. The burst data is prepared in the following manner: first, the burst data is prepared according to the second burst data requirement corresponding to the downlink subframe, and then the burst data is prepared according to the first burst data requirement corresponding to the uplink subframe.
可选地,在准备该突发数据的过程中,当该上行子帧对应的第一突发数据需求不能满足该突发数据的数量时,补充虚假的该上行子帧对应的第一突发数据来填充满该突发数据的数量。Optionally, in the process of preparing the burst data, when the first burst data requirement corresponding to the uplink subframe cannot satisfy the quantity of the burst data, supplementing the false first burst corresponding to the uplink subframe The data is used to fill the amount of burst data.
图3是根据本发明实施例的非授权载波中数据的传输装置的结构框图(一),如图3所示,相对图2所示的装置,图3所示的装置还包括:配比模块32,设置为在该突发数据的数量为固定值时,形成与突发数据对应的配比信息;其中,当该突发数据的数量为给定值M时,该突发数据的每一种配比信息满足:X个下行子帧、Z个特殊数据子帧,Y个上行子帧,其中,X、Y、Z、M取值为整数,X、Y、Z分别小于M且大于0,或等于M,或等于0;且X、Y、Z的取值满足等式:X+Y+Z=M。3 is a structural block diagram (1) of a data transmission apparatus in an unlicensed carrier according to an embodiment of the present invention. As shown in FIG. 3, the apparatus shown in FIG. 3 further includes: a ratio ratio module. 32. Set, when the number of the burst data is a fixed value, form matching ratio information corresponding to the burst data; wherein, when the quantity of the burst data is a given value M, each of the burst data The matching ratio information satisfies: X downlink subframes, Z special data subframes, and Y uplink subframes, where X, Y, Z, and M are integers, and X, Y, and Z are respectively smaller than M and greater than 0. , or equal to M, or equal to 0; and the values of X, Y, Z satisfy the equation: X + Y + Z = M.
可选地,配比模块32是设置为按照该下行子帧的数量形成该配比信息。Optionally, the ratio module 32 is configured to form the ratio information according to the number of the downlink subframes.
图4是根据本发明实施例的非授权载波中数据的传输装置的结构框图(二),如图4所示,相对图3所示装置,图4所示装置还包括:发送模块42,设置为将配比信息通过空口发给接收端。4 is a structural block diagram (2) of a data transmission apparatus in an unlicensed carrier according to an embodiment of the present invention. As shown in FIG. 4, the apparatus shown in FIG. 4 further includes: a sending module 42, which is set as shown in FIG. In order to send the matching information to the receiving end through the air interface.
可选地,当使用多个非授权载波同时传输该突发数据时,多个非授权载波使用相同的配比信息传输该突发数据。Optionally, when the burst data is simultaneously transmitted using a plurality of unlicensed carriers, the plurality of unlicensed carriers transmit the burst data using the same proportion information.
可选地,指定子帧所在帧的帧长是固定的或半静态配置的,且帧中的指定子帧的上行或下行属性由对应的突发数据确定。Optionally, the frame length of the frame in which the specified subframe is located is fixed or semi-statically configured, and an uplink or downlink attribute of the specified subframe in the frame is determined by the corresponding burst data.
需要说明的是,上述各个模块是可以通过软件或硬件来实现的,对于后者,可以通过以下方式实现,但不限于此:上述模块均位于同一处理器中;或者,上述模块分别位于多个处理器中。It should be noted that each of the above modules may be implemented by software or hardware. For the latter, the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.
本发明的实施例还提供了一种存储介质。可选地,在本实施例中,上述存储介质可以被设置为存储用于执行以下步骤的程序代码:Embodiments of the present invention also provide a storage medium. Optionally, in the embodiment, the foregoing storage medium may be configured to store program code for performing the following steps:
S1,准备突发数据Burst Data;S1, preparing burst data Burst Data;
S2,根据突发数据确定传输该突发数据需要的上行子帧和下行子帧;S2. Determine, according to the burst data, an uplink subframe and a downlink subframe that are required to transmit the burst data.
S3,获取非授权载波; S3, acquiring an unlicensed carrier;
S4,将上行子帧对应的第一突发数据和下行子帧对应的第二突发数据映射到非授权载波的指定子帧中;S4, mapping the first burst data corresponding to the uplink subframe and the second burst data corresponding to the downlink subframe to the designated subframe of the unlicensed carrier;
S5,通过指定子帧发送和/或接收突发数据。S5, transmitting and/or receiving burst data by specifying a subframe.
可选地,在本实施例中,上述存储介质可以包括但不限于:U盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。Optionally, in this embodiment, the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory. A variety of media that can store program code, such as a disc or a disc.
可选地,在本实施例中,处理器根据存储介质中已存储的程序代码执行上述S1,S2,S3,S4以及S5。Optionally, in this embodiment, the processor executes the foregoing S1, S2, S3, S4, and S5 according to the stored program code in the storage medium.
可选地,本实施例中的具体示例可以参考上述实施例及可选实施方式中所描述的示例,本实施例在此不再赘述。For example, the specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.
一种适合LTE在非授权载波中使用的帧结构,包括:A frame structure suitable for LTE to be used in an unlicensed carrier, including:
图5是根据本发明实施例的LAA burst data的传输示意图,参考图5,非授权载波中站点采用固定或半静态可以配置的帧进行数据传输,帧内包括若干个等长的子帧(但帧中并没有定义子帧具体为下行或上行子帧),且子帧由突发数据决定被用于上行或下行。非授权载波与配对的授权载波在时间上对齐,例如可以考虑帧号、子帧号都是对齐的。这样便于非授权载波中与帧号或子帧号(包括时隙号,一个子帧包括2个时隙)相关的信号(例如LTE的几乎所有的上行或下行参考信号、PSS/SSS)的产生和发送,也就是可以沿用相关的机制继续使用。FIG. 5 is a schematic diagram of transmission of LAA burst data according to an embodiment of the present invention. Referring to FIG. 5, a station in a non-authorized carrier uses a fixed or semi-statically configurable frame for data transmission, and the frame includes several subframes of equal length (but The subframe is not defined in the frame as a downlink or uplink subframe, and the subframe is used for uplink or downlink by the burst data. The unlicensed carrier is aligned with the paired authorized carrier in time. For example, it can be considered that the frame number and the subframe number are aligned. This facilitates the generation of signals related to the frame number or subframe number (including the slot number, one subframe including 2 slots) in the unlicensed carrier (for example, almost all uplink or downlink reference signals, PSS/SSS of LTE). And send, that is, you can continue to use the relevant mechanisms.
所述突发数据决定的上行子帧或下行子帧的信令可以通过DCI进行传输,或者通过预留信号或初始信号来直接进行传输。如果采用预留信号或初始信号进行传输时,还可以利用预留信号或初始信号的序列的不同暗含对应不同的信令,也可以通过预留信号或初始信号发送的资源(例如子载波、PRB或RE)的图样来暗含信令,或者通过预留信号或初始信号发送的静默的资源的图样来暗含信令。The signaling of the uplink subframe or the downlink subframe determined by the burst data may be transmitted through the DCI, or directly transmitted through a reserved signal or an initial signal. If the reserved signal or the initial signal is used for transmission, the difference between the sequence of the reserved signal or the initial signal may be used to correspond to different signaling, or the resource transmitted by the reserved signal or the initial signal (for example, subcarrier, PRB) The pattern of or RE) implies signaling or implies signaling by a reserved signal or a pattern of silent resources transmitted by the initial signal.
站点抢占成功后,将执行CCA/eCCA成功的子帧作为突发数据的传输起点(假设CCA/eCCA执行成功的子帧包括,也可以从CCA/eCCA执行成功的 子帧的下一个子帧作为突发数据的传输起点),确定突发数据对应的突发数据(burst data)配置序号,实际就是根据burst data中下行和/或上行负载的需求,确定burst data中下行和/或上行子帧数。站点并对应的burst data的子帧通过帧中的子帧进行传输。并通过帧、子帧以及时隙号产生相关的信号在非授权载波对应的传输burst data的帧的子帧中发送。After the site preemption succeeds, the CCA/eCCA successful subframe is used as the transmission starting point of the burst data (assuming that the CCA/eCCA successfully executed subframe includes, it can also be successfully executed from the CCA/eCCA. The next subframe of the subframe is used as the transmission starting point of the burst data, and the burst data configuration sequence number corresponding to the burst data is determined. Actually, the burst data is determined according to the demand of the downlink and/or uplink load in the burst data. Number of mid-downstream and/or uplink subframes. The subframe of the site and the corresponding burst data is transmitted through the subframe in the frame. And generating a correlation signal by using a frame, a subframe, and a slot number in a subframe of a frame of the transmission burst data corresponding to the unlicensed carrier.
站点把burst data中下行负载对应的子帧排放在上行负载之前(当没有上行burst data需求时,特殊突发子帧S’子帧位于最前面)。这样,可以使得本申请中的建议的使用固定长度的burst data变得“动态”起来。一种可能的方式为:假设站点固定的burst data为10ms,站点在确定burst data中负载需求时,站点根据负载需求产生下行burst data需要的子帧数、上行burst data需要的子帧数,当实际负载不足够10ms时,站点产生虚假的上行burst data的子帧数来弥补到10ms长度。站点在弥补的上行burst data中授权UE发送数据或资源抢占,同时,其他站点允许通过CCA/eCCA竞争抢占该资源并使用。这样站点burst data内没有使用上行burst data对应的子帧就会被其他站点抢占,且不会对于UE的测量产生影响。且当站点执行burst data发送期间,临时发现需要UE发送相关信息(例如数据重传、ACK反馈等),弥补的上行burst data对应的子帧,仍然能被UE使用(或者是站点授权UE使用)。The station discharges the subframe corresponding to the downlink load in the burst data before the uplink load (when there is no uplink burst data requirement, the special burst subframe S' subframe is at the forefront). In this way, the proposed use of fixed length burst data in the present application can be made "dynamic". A possible way is as follows: assuming that the site's fixed burst data is 10 ms, when the site determines the load demand in the burst data, the site generates the number of subframes required for downlink burst data and the number of subframes required for uplink burst data according to the load requirement. When the actual load is not enough for 10ms, the station generates the number of subframes of false uplink burst data to make up for 10ms. The station authorizes the UE to send data or resource preemption in the compensated uplink burst data. At the same time, other sites allow the CCA/eCCA to compete for the resource and use it. In this case, the subframe corresponding to the uplink burst data in the burst data of the site will be preempted by other stations, and will not affect the measurement of the UE. During the execution of the burst data transmission, the temporary discovery requires the UE to send related information (such as data retransmission, ACK feedback, etc.), and the subframe corresponding to the uplink burst data can still be used by the UE (or the site authorized UE). .
当规定每次站点使用的突发数据的数量为给定值M时,站点能够使用的突发数据配比为,突发数据的配比的形成规则:X个下行突发数据子帧、1特殊突发数据子帧,Y个上行突发数据子帧。其中,X取值为0~M,Y取值为0~M,且X、Y取值满足等式:X+Y+1=M。站点能够将其中的配比中的部分或全部配比作为给定突发数据配比集合来使用,例如,站点每次抢占成功非授权载波后,只能按照配比集合中的一配比来组成突发数据。When it is specified that the number of burst data used by each station is a given value M, the burst data ratio that the station can use is the formation rule of the ratio of burst data: X downlink burst data subframes, 1 Special burst data subframe, Y uplink burst data subframes. The value of X is 0 to M, and the value of Y is 0 to M, and the values of X and Y satisfy the equation: X+Y+1=M. The station can use some or all of the ratios in the ratio as a given burst data matching set. For example, each time the station preempts a successful unlicensed carrier, it can only use one ratio in the matching set. Make up burst data.
例如burst data长为10ms,那么支持10个子帧,给出11种burst data对应的下行和上行burst data配比,下述的每一种配置都作为burst data的配置的一种情况,分别为(对于其他长度的burst data也可以采用类似处理):For example, if the burst data is 10 ms long, then 10 sub-frames are supported, and the downlink and uplink burst data ratios corresponding to the 11 types of burst data are given. Each of the following configurations is used as a configuration of burst data, respectively ( Similar processing can be used for burst data of other lengths):
配置0(burst data的配置序号):(按照时间顺序,以子帧为单位,下同)0个下行子帧(0个下行burst data子帧需求),1个S’子帧,9个上行子帧(9个上行burst data子帧需求)。 Configuration 0 (burst data configuration number): (in chronological order, in subframes, the same below) 0 downlink subframes (0 downlink burst data subframe requirements), 1 S' subframe, 9 uplinks Subframe (9 uplink burst data subframe requirements).
配置1:1个下行子帧,1个S’子帧,8个上行子帧。Configure 1:1 downlink subframes, 1 S' subframe, and 8 uplink subframes.
配置2:2个下行子帧,1个S’子帧,7个上行子帧。Configuration 2: 2 downlink subframes, 1 S' subframe, and 7 uplink subframes.
配置3:3个下行子帧,1个S’子帧,6个上行子帧。Configure 3: 3 downlink subframes, 1 S' subframe, and 6 uplink subframes.
配置4:4个下行子帧,1个S’子帧,5个上行子帧。Configure 4: 4 downlink subframes, 1 S' subframe, and 5 uplink subframes.
配置5:5个下行子帧,1个S’子帧,4个上行子帧。Configure 5: 5 downlink subframes, 1 S' subframe, and 4 uplink subframes.
配置6:6个下行子帧,1个S’子帧,3个上行子帧。Configure 6: 6 downlink subframes, 1 S' subframe, and 3 uplink subframes.
配置7:7个下行子帧,1个S’子帧,2个上行子帧。Configure 7: 7 downlink subframes, 1 S' subframe, and 2 uplink subframes.
配置8:8个下行子帧,1个S’子帧,1个上行子帧。Configure 8: 8 downlink subframes, 1 S' subframe, and 1 uplink subframe.
配置9:1个S’子帧,9个下行子帧,0个上行子帧。Configure 9: 1 S' subframe, 9 downlink subframes, and 0 uplink subframes.
配置10:0个S’子帧,10个下行子帧,0个上行子帧。Configure 10:0 S' subframes, 10 downlink subframes, and 0 uplink subframes.
站点在执行CCA/eCCA成功获得非授权载波后,站点再发送占用期间的burst data的配置序号信息。例如基站抢占成功后,在当前子帧或后续子帧中发送burst data的配置序号信息,如,基站发送burst data的配置序号(即前述的配置0、配置1、配置2等)。其中S’至少按照时间顺序包括下行、CCA/eCCA,其中是UE执行CCA/eCCA。当UE执行CCA/eCCA成功后,如果仍然未到达S’子帧边界时,UE(和/或基站)需要发送预留信号。当CCA/eCCA执行成功的时刻为S’子帧的边界时(或距离边界小于9us或34us或40us时),UE(和/或基站)不发送预留信号。这里可以为UE设计简单的CCA/eCCA,例如只执行初次CCA,且CCA执行结束位置距离S’子帧结束边界不超18us或68us或80us(例如68us,是考虑UE执行一次CCA,时长34us,距离S’子帧边界距离将小于68us-34us),或者且CCA执行结束位置为S’子帧结束边界。After the site successfully performs the CCA/eCCA to obtain the unlicensed carrier, the station resends the configuration sequence number information of the burst data during the occupation period. For example, after the base station preempts successfully, the configuration sequence number information of the burst data is sent in the current subframe or the subsequent subframe. For example, the base station sends the configuration number of the burst data (that is, the foregoing configuration 0, configuration 1, configuration 2, and the like). Wherein S' includes at least downlink, CCA/eCCA in chronological order, wherein the UE performs CCA/eCCA. After the UE performs CCA/eCCA success, if the S' subframe boundary is still not reached, the UE (and/or base station) needs to transmit a reservation signal. When the moment when the CCA/eCCA is successfully executed is the boundary of the S' subframe (or when the distance boundary is less than 9us or 34us or 40us), the UE (and/or the base station) does not transmit the reserved signal. Here, a simple CCA/eCCA can be designed for the UE, for example, only the initial CCA is performed, and the CCA execution end position is not more than 18 us or 68 us or 80 us from the end boundary of the S' subframe (for example, 68 us, considering that the UE performs a CCA once, the duration is 34 us, The distance from the S' subframe boundary will be less than 68us-34us), or the end position of the CCA execution is the S' subframe end boundary.
为了支持邻近站点频率重用非授权而带来的干扰,下面的方式被使用。In order to support the interference caused by the reuse of unauthorized frequencies by neighboring sites, the following methods are used.
邻近站点交互计划或正在使用非授权载波的burst data的上行和/或下行配比信息,例如通过X2接口交互,或者通过空口交互。站点1在抢占前或抢占成功后通过X2接口发送假如抢占成功后计划实施的burst data上行和/或下行配比信息,接收端接收到该信息后,当接收端确定站点1抢占成功非授权载波时,接收端实施频率复用时,可选的按照接收的站点1的burst data上下 行子帧图样来执行频率复用时的burst data上下行子帧图样。这样可以避免彼此之间burst data上下行子帧冲突的干扰问题。如果接收端端的站点不能完全选择与站点1相同的burst data时,那么,接收端选择burst data配置中下行少于站点1的burst data配置。The uplink and/or downlink matching information of the neighboring site interaction plan or the burst data of the unlicensed carrier is used, for example, through the X2 interface, or through air interface interaction. After the preemption or preemption, the site 1 sends the burst data uplink and/or downlink ratio information that is planned to be implemented after the preemption succeeds. After receiving the information, the receiver determines that the station 1 preempts the unlicensed carrier. When the receiving end implements frequency multiplexing, it is optional to follow the burst data of the received station 1 The sub-frame pattern is used to perform the burst data uplink and downlink sub-frame pattern at the time of frequency multiplexing. This can avoid interference problems between uplink and downlink subframe conflicts between burst data. If the receiving end station cannot select the same burst data as the station 1, the receiving end selects the burst data configuration and the downlink data is less than the burst data configuration of the station 1.
站点也可以在抢占成功后发送burst data配置信息,然后接收端(未抢占成功)接收该burst data配置,并在频率复用时按照该burst data配置执行,或者按照上述方式选择合适的burst data配置。这种适合理想回程链路的情况下,此时的X2接口传输时延几乎可以忽略。当然使用空口传输也是可以的。The site may also send burst data configuration information after the preemption succeeds, and then the receiving end (not preemptive success) receives the burst data configuration, and performs the burst data configuration according to the burst data configuration, or selects an appropriate burst data configuration according to the above manner. . In this case, which is suitable for an ideal backhaul link, the X2 interface transmission delay at this time is almost negligible. Of course, it is also possible to use air interface transmission.
在站点同时使用多个非授权和授权载波聚合时,对于邻近band data的多个非授权载波优先考虑设计配置相同的burst data配置,以减少邻近band非授权载波的邻带泄露干扰问题。When multiple unlicensed and authorized carrier aggregations are used at the same time, the same burst data configuration is designed and prioritized for multiple unlicensed carriers adjacent to the band data to reduce the neighbor leakage leakage problem of the adjacent band unlicensed carriers.
图6是根据本发明实施例的LAA burst data与帧的上下行子帧属性示意图,在图6中,对于一站点而言,虽然使用非授权载波是机会性的,即抢占成功后才能使用,如果没有抢占成,不能使用(相当于其他站点在使用),所以站点不能像授权载波那样始终维持对应的帧号、子帧号、时隙号等。所以图6,站点做到非授权载波的帧号、子帧号、时隙号都以对应的授权载波为准。即帧号、子帧号、时隙号是对齐的。这样当站点抢占成功后,就可以拥有自己的帧号、子帧号、时隙号,从而可以利用这些信息执行对应的参考信号的产生和发送。6 is a schematic diagram of LAA burst data and uplink and downlink subframe attributes of a frame according to an embodiment of the present invention. In FIG. 6, for a site, although an unlicensed carrier is used, it is used after the preemption is successful. If there is no preemption, it cannot be used (equivalent to other stations in use), so the station cannot always maintain the corresponding frame number, subframe number, slot number, etc. like the authorized carrier. Therefore, in Figure 6, the frame number, subframe number, and slot number of the unlicensed carrier are determined by the corresponding authorized carrier. That is, the frame number, the subframe number, and the slot number are aligned. In this way, when the site preempts successfully, it can have its own frame number, subframe number, and slot number, so that the information can be used to generate and transmit the corresponding reference signal.
当站点抢占成功后,站点根据负载需求,确定传输burst data需要的下行子帧数、上行子帧数(S或S’子帧本例中算作下行),然后根据从前述的burst data配置中选择对应的burst data配置序号。例如图6中,站点占用成功后,burst data的下行需要6个子帧,上行需要4个子帧,那么站点选择burst data配置5。并将配置5对应的上下行子帧映射到非授权载波帧对应的实际子帧中。从而,非授权载波在该站点占用期间的具体帧、上下行子帧如图6。After the site is successfully preempted, the station determines the number of downlink subframes and uplink subframes required for transmitting burst data according to the load requirement (S or S' subframe is counted as downlink in this example), and then according to the foregoing burst data configuration. Select the corresponding burst data configuration serial number. For example, in Figure 6, after the site is successfully occupied, the downlink of the burst data requires 6 subframes, and the uplink requires 4 subframes, then the site selects burst data configuration 5. And mapping the uplink and downlink subframes corresponding to the configuration 5 to the actual subframe corresponding to the unlicensed carrier frame. Thus, the specific frame and the uplink and downlink subframes of the unlicensed carrier during the occupation of the station are as shown in FIG. 6.
站点按照帧号、子帧号、时隙号生成对应的下行参考信号并在对应的位置发送。上行子帧也是接收端按照帧号、子帧号、时隙号生成对应的参考信号在对应的位置发送。 The station generates a corresponding downlink reference signal according to the frame number, the subframe number, and the slot number, and transmits the corresponding downlink reference signal. The uplink subframe is also sent by the receiving end according to the frame number, the subframe number, and the slot number to generate a corresponding reference signal at the corresponding location.
一种适合LTE在非授权载波中使用的帧结构选择方法,包括:A frame structure selection method suitable for LTE to be used in an unlicensed carrier, comprising:
帧长固定或半静态可以配置,帧内预定义包括下行子帧、上行子帧和S’子帧且顺序为下行子帧,S’子帧,上行子帧。例如帧长为10ms,那么支持10个子帧,下面给出11种下行子帧、S’子帧、上行子帧的配比,下述的每一种配置都作为帧的配置的一种情况,分别为:The frame length may be fixed or semi-static. The intra-frame pre-defined includes a downlink subframe, an uplink subframe, and an S' subframe, and the sequence is a downlink subframe, an S' subframe, and an uplink subframe. For example, if the frame length is 10 ms, then 10 subframes are supported. The ratios of 11 downlink subframes, S' subframes, and uplink subframes are given below. Each of the following configurations is used as a configuration of the frame. They are:
配置0(帧的配置序号):(按照时间顺序,下同)0个下行子帧,1个S’子帧,9个上行子帧。Configuration 0 (configuration number of the frame): (in chronological order, the same below) 0 downlink subframes, 1 S' subframe, and 9 uplink subframes.
配置1:1个下行子帧,1个S’子帧,8个上行子帧。Configure 1:1 downlink subframes, 1 S' subframe, and 8 uplink subframes.
配置2:2个下行子帧,1个S’子帧,7个上行子帧。Configuration 2: 2 downlink subframes, 1 S' subframe, and 7 uplink subframes.
配置3:3个下行子帧,1个S’子帧,6个上行子帧。Configure 3: 3 downlink subframes, 1 S' subframe, and 6 uplink subframes.
配置4:4个下行子帧,1个S’子帧,5个上行子帧。Configure 4: 4 downlink subframes, 1 S' subframe, and 5 uplink subframes.
配置5:5个下行子帧,1个S’子帧,4个上行子帧。Configure 5: 5 downlink subframes, 1 S' subframe, and 4 uplink subframes.
配置6:6个下行子帧,1个S’子帧,3个上行子帧。Configure 6: 6 downlink subframes, 1 S' subframe, and 3 uplink subframes.
配置7:7个下行子帧,1个S’子帧,2个上行子帧。Configure 7: 7 downlink subframes, 1 S' subframe, and 2 uplink subframes.
配置8:8个下行子帧,1个S’子帧,1个上行子帧。Configure 8: 8 downlink subframes, 1 S' subframe, and 1 uplink subframe.
配置9:1个S’子帧,9个下行子帧,0个上行子帧。Configure 9: 1 S' subframe, 9 downlink subframes, and 0 uplink subframes.
配置10:0个S’子帧,10个下行子帧,0个上行子帧。Configure 10:0 S' subframes, 10 downlink subframes, and 0 uplink subframes.
站点在执行CCA/eCCA成功获得非授权载波后,站点再发送占用期间的帧的上下行配置信息。例如基站抢占成功后,在当前成功的子帧或后续子帧中发送帧的上下行配置信息,如,基站发送帧的配置序号(即前述的配置0、配置1、配置2等)。After the site successfully performs the CCA/eCCA to obtain the unlicensed carrier, the site resends the uplink and downlink configuration information of the frame during the occupation period. For example, after the base station preempts successfully, the uplink and downlink configuration information of the frame is sent in the currently successful subframe or the subsequent subframe, for example, the configuration sequence number of the frame transmitted by the base station (that is, the foregoing configuration 0, configuration 1, configuration 2, and the like).
方案1,plan 1,
在帧内设置多个子帧允许执行CCA/eCCA,站点在允许执行CCA/eCCA的位置,进行资源的使用权抢占,当站点抢占成功后,站点选择合理的帧的配置序号。Setting multiple subframes in a frame allows CCA/eCCA to be performed. The site performs the preemption of resource usage rights at the location where CCA/eCCA is allowed to be performed. When the site preemption succeeds, the site selects a reasonable frame configuration number.
站点需要保持非授权载波的定时与配对的授权载波的定时一致,即按照授权载波的定时进行帧、子帧、OFDM符号边界的划分,以及帧号、子帧号 的标记。参考图5。The station needs to keep the timing of the unlicensed carrier consistent with the timing of the paired authorized carrier, that is, divide the frame, the subframe, the OFDM symbol boundary according to the timing of the authorized carrier, and the frame number and the subframe number. Mark. Refer to Figure 5.
站点确定执行CCA/eCCA成功的帧和子帧,站点确定本次占用时长(或占用的最大时长)为当前帧内剩余子帧数。站点能够重新配置帧对应的上下行配置信息,例如重新配置帧的配置序号。通过重新配置序号,从而能够实现调整上行子帧、下行子帧的数量。相当于,站点通过CCA/eCCA成功子帧位置确定占用时长(或占用的最大时长)对应的子帧数,然后通过重新配置当前帧的配置序号调整占用时长(占用的最大时长内)内上行、下行子帧数量,以满足上行、下行负载的需求。The station determines the frame and subframe in which the CCA/eCCA is successfully performed, and the station determines the current occupation time (or the maximum duration occupied) as the number of remaining subframes in the current frame. The station can reconfigure the uplink and downlink configuration information corresponding to the frame, for example, the configuration sequence number of the reconfiguration frame. By reconfiguring the sequence number, the number of uplink subframes and downlink subframes can be adjusted. Equivalently, the station determines the number of subframes corresponding to the occupied duration (or the maximum duration) by the CCA/eCCA successful subframe position, and then adjusts the occupied duration (within the maximum duration) by reconfiguring the configuration number of the current frame. The number of downlink subframes meets the requirements of uplink and downlink loads.
站点如果不需要重新配置帧的配置序号时,站点可以不发送该帧的配置序号信息,默认采用现用(或上次使用的)的帧的配置序号。If the station does not need to reconfigure the configuration number of the frame, the station may not send the configuration sequence number information of the frame, and the default configuration number of the current (or last used) frame is adopted.
帧的配置序号信息的信令通过DCI进行传输,或者通过预留信号或初始信号来直接进行传输。如果采用预留信号或初始信号进行传输时,还可以利用预留信号或初始信号的序列的不同暗含对应帧的配置序号,也可以通过预留信号或初始信号发送的资源(例如子载波、PRB或RE)的图样来暗含帧的配置序号,或者通过预留信号或初始信号发送的静默的资源的图样来暗含帧的配置序号。The signaling of the configuration sequence number information of the frame is transmitted through the DCI, or directly through the reserved signal or the initial signal. If the reserved signal or the initial signal is used for transmission, the sequence of the reserved signal or the initial signal may be used to imply the configuration sequence number of the corresponding frame, or the resource transmitted by the reserved signal or the initial signal (for example, subcarrier, PRB) The pattern of the frame or the RE) implies the frame number of the frame, or the frame number of the frame is implicitly indicated by the reserved signal or the pattern of the silent resource sent by the initial signal.
站点也可以通过X2口发送帧的配置信息给相邻的站点,且可以把占用时长信息、占用起始点信息发送给相邻站点。The site can also send the configuration information of the frame to the adjacent site through the X2 port, and can send the occupation time information and the occupation start point information to the adjacent site.
接收端,接收端设置为接收所属站点发送的帧的配置序号信息。At the receiving end, the receiving end is configured to receive the configuration sequence number information of the frame sent by the belonging station.
可选的,接收端需要确定所属站点执行CCA/eCCA成功的子帧或时刻,也就是确定站点占用的帧的起始时间点或子帧。Optionally, the receiving end needs to determine the subframe or time when the station performs CCA/eCCA success, that is, determine the starting time point or subframe of the frame occupied by the station.
接收端再根据确定的帧的起始子帧,在结合接收的或者通过预留信号或初始信号解析出来的帧的配置序号,根据帧的配置序号进一步确定帧的上下行子帧配置,确定所属站点占用的时长内帧中具体下行子帧、S’子帧和上行子帧的位置。接收端可以在确定的下行子帧中进行测量,在对应的上行子帧中传输数据。The receiving end further determines the uplink and downlink subframe configuration of the frame according to the configuration sequence number of the received frame or the parsed frame or the initial signal, according to the configuration sequence number of the received frame, and determines the belongs. The location of the specific downlink subframe, S' subframe, and uplink subframe in the frame within the duration occupied by the station. The receiving end may perform measurement in the determined downlink subframe and transmit data in the corresponding uplink subframe.
相邻的站点如果进行频率复用时,可以考虑选择相同的帧的配置信息来进行频率复用传输。相邻站点进行频率复用优先考虑在抢占成功站点通知的 占用时长内进行复用,当超出占用时长时,可以重新进行抢占。If adjacent stations perform frequency multiplexing, they may consider selecting the same frame configuration information for frequency multiplexing transmission. Frequency reuse of adjacent sites is prioritized in preempting successful site notifications It is reused within the occupied time. When the occupation time is exceeded, the preemption can be resumed.
接收端如果发现未发送帧的配置序号信息,接收按照原有的帧的配置序号执行。If the receiving end finds the configuration sequence number information of the unsent frame, the receiving is performed according to the configuration number of the original frame.
例1example 1
站点抢占后通知。给出一个具体的例子。Post notification after site preemption. Give a concrete example.
假设采用非授权载波支持的帧长为10ms,且包括10个1ms的子帧。候选的帧的配置序号为前述的从配置0至配置10。S’子帧作为作为一种子帧结构在本实例算作下行子帧(假设该子帧中配置的下行资源远多于上行资源)。It is assumed that the frame length supported by the unlicensed carrier is 10 ms, and 10 subframes of 1 ms are included. The configuration number of the candidate frame is from the configuration 0 to the configuration 10 described above. The S' subframe is counted as a sub-frame structure in the present example as a downlink subframe (assuming that the downlink resources configured in the subframe are far more than the uplink resources).
基站执行CCA/eCCA的过程中或之前,非授权载波都是被其他站点使用的,其他站点配置的帧的配置序号假设为配置5。During or before the execution of the CCA/eCCA by the base station, the unlicensed carriers are used by other stations, and the configuration sequence number of the frames configured by other stations is assumed to be configuration 5.
基站执行CCA/eCCA,当获得成功后,基站通过非授权载波(授权载波中对应的子帧也可以)中的第一个子帧(可能是部分子帧)或者之后的子帧来发送(发送时机越早越好,这样UE能够及时获知)占用的帧的配置序号。例如,图7是根据本发明实施例的LAA burst data传输一种方式示意图,参考图7,基站执行CCA/eCCA成功在帧n的第4个子帧中(帧号和子帧号是参考非授权载波对应的授权载波的定时,它们的定时是对齐),并且基站计划抢占后发送的下行和上行负载需求为:下行4个子帧(包括第4个子帧,如果不包括,那就是3个下行子帧,但是处理原则是类似的。S’子帧看做下行),上行2个子帧。那么基站参考前述的候选的帧的配置序号,选择满足要求的帧的序号:帧的配置序号为6。因为帧的配置6中,前6个为下行子帧、第7个为S’子帧(看做下行)、其余为3个上行子帧。此时当前帧内的前3个子帧已经过去,不能使用。The base station performs CCA/eCCA. After obtaining the success, the base station sends (sends) the first subframe (possibly a partial subframe) or the subsequent subframe in the unlicensed carrier (the corresponding subframe in the authorized carrier is also possible). The earlier the timing, the better, so that the UE can know in time the configuration number of the occupied frame. For example, FIG. 7 is a schematic diagram of a manner of LAA burst data transmission according to an embodiment of the present invention. Referring to FIG. 7, the base station performs CCA/eCCA successfully in the fourth subframe of frame n (the frame number and the subframe number are reference unlicensed carriers). The timing of the corresponding authorized carriers, their timing is aligned, and the downlink and uplink load requirements sent by the base station after preemption are: downlink 4 subframes (including the 4th subframe, if not included, then 3 downlink subframes) However, the processing principle is similar. The S' subframe is regarded as the downlink), and the uplink is 2 subframes. Then, the base station refers to the configuration sequence number of the foregoing candidate frame, and selects the sequence number of the frame that satisfies the requirement: the configuration number of the frame is 6. Because of the frame configuration 6, the first six are downlink subframes, the seventh one is S' subframe (see downlink), and the rest are three uplink subframes. At this time, the first 3 subframes in the current frame have passed and cannot be used.
根据执行CCA/eCCA成功的子帧之后剩余的下行子帧数满足下行负载需求来选择帧的配置序号。The configuration sequence number of the frame is selected according to the downlink load requirement that satisfies the downlink load requirement after the successful CCA/eCCA successful subframe.
基站将确定的帧的配置序号6进行发送。The base station transmits the configuration number 6 of the determined frame.
UE或其他基站接收到该帧的配置序号6的信息后,UE就按照非授权载波配对的授权载波的定时,确定当前帧以及当前子帧位置(假设基站就在抢占成功后的第一个子帧中发送了帧的配置序号6信息),那么UE通过检测 或信令解析获知接收到的帧的配置序号信息的子帧位置,再结合所述授权载波的定时,可以确定该子帧为帧内第4个子帧。UE进一步结合配置序号6对应的帧配置中下行、S’子帧、上行子帧的位置,确定出基站占用的帧内的第5、6、7为下行子帧,第8为S’子帧,第9为上行子帧,第10个子帧为上行(实际上UE并不清楚帧内的第10个子帧是否使用,按照本实施的假设,基站是不会使用帧内第10个子帧的,也就是UE不会在帧第10个子帧中发送数据,因为没有那么多负载)。After receiving the information of the configuration sequence number 6 of the frame, the UE determines the current frame and the current subframe position according to the timing of the authorized carrier paired by the unlicensed carrier (assuming that the base station is in the first sub-preemption) The frame number of the frame is sent in the frame, and the UE passes the detection. Or signaling to determine the subframe position of the configured sequence number information of the received frame, and in combination with the timing of the authorized carrier, the subframe may be determined to be the fourth subframe in the frame. The UE further determines the positions of the downlink, the S′ subframe, and the uplink subframe in the frame configuration corresponding to the configuration sequence number 6, and determines that the fifth, sixth, and seventh frames in the frame occupied by the base station are downlink subframes, and the eighth is the S′ subframe. The ninth is the uplink subframe, and the tenth subframe is the uplink. (In fact, the UE does not know whether the 10th subframe in the frame is used. According to the assumption of the implementation, the base station does not use the 10th subframe in the frame. That is, the UE does not send data in the 10th subframe of the frame because there is not so much load).
本实施例假设基站一次占用是不会超过帧边界的。帧的配置序号信息可以使用明确的信令通知,也可以使用隐含的方式间接通知,例如使用初始信号(也叫预留信号)隐含通知,例如帧的配置序号信息可以使用明确的信令通知,也可以使用隐含的方式间接通知,例如利用预留信号的不同序列或频域图样来隐含帧的配置序号。This embodiment assumes that the base station does not occupy the frame boundary once. The configuration sequence number information of the frame may be explicitly signaled or indirectly notified by an implicit manner, for example, using an initial signal (also called a reserved signal) to implicitly notify, for example, the configuration number information of the frame may use explicit signaling. Notifications may also be indirectly notified in an implicit manner, such as by using different sequences of the reserved signals or frequency domain patterns to imply the configuration number of the frame.
方案2,Scenario 2,
与方案1的不同之处在于,站点在计划抢占非授权载波时,或者执行抢占之前,站点就根据计划发送的负载确定出上行、下行子帧的需求,并确定对应的帧的配置序号,并发送。此时只能通过信令的方式发送。且这个方式合适burst data的上下行配置发送。The difference from the scheme 1 is that, when the station plans to preempt the unlicensed carrier, or before performing the preemption, the station determines the requirements of the uplink and downlink subframes according to the planned load, and determines the configuration sequence number of the corresponding frame, and send. At this time, it can only be sent by signaling. And this method is suitable for sending uplink and downlink configurations of burst data.
在站点抢占成功后,站点就按照之前发送的帧的配置序号来执行发送。After the site preemption succeeds, the site performs the transmission according to the configuration sequence number of the previously sent frame.
UE接收站点计划发送的帧的配置序号信息,并进一步判断所属站点是否执行CCA/eCCA成功,如果判断为成功(可以使用站点发送的预留信号或初始信号判断),那么UE就按照计划发送的帧的配置序号确认占用的上行、S’子帧、下行子帧位置。The UE receives the configuration sequence number information of the frame that the station plans to send, and further determines whether the affiliate station performs CCA/eCCA successfully. If it is determined to be successful (can be determined by using the reserved signal or initial signal sent by the station), the UE sends the planned according to the plan. The configuration number of the frame confirms the occupied uplink, S' subframe, and downlink subframe position.
方案2中,站点发送帧的配置序号对应的帧的第一个子帧起始位置可以总是站点执行CCA/eCCA成功的子帧,这个也是适合方案1的。In the scheme 2, the first subframe start position of the frame corresponding to the configuration sequence number of the station transmission frame may always be a subframe in which the station performs CCA/eCCA success, which is also suitable for the scheme 1.
方案3Option 3
占用时长超出帧边界的处理。Processing that takes longer than the frame boundary.
站点执行CCA/eCCA的成功的子帧位置可以是帧内给定的子帧,或者是帧内任意子帧。如果限制站点每次抢占最大只能到达当前帧的边界,虽然有 利于定时关系的确定,适合负载较轻的情况下。如果对于负载需求比较大的站点,显然不能够跨帧边界抢占是存在缺点的。The successful subframe position at which the station performs CCA/eCCA may be a given subframe within the frame, or any subframe within the frame. If you limit the maximum preemption of the site, you can only reach the boundary of the current frame, although there is Conducive to the determination of the timing relationship, suitable for the case of light load. If there is a site with a relatively large load demand, obviously there is a disadvantage in that it cannot be preempted across the frame boundary.
方案3中,站点执行CCA/eCCA成功后,按照上下行负载综合确定总共的子帧数(包括上行子帧数、下行子帧数),但是基站按照下行子帧数选择对应的帧的配置序号(也有按照上行子帧数选择对应的帧的配置序号)。然后发送帧的配置序号信息。In scheme 3, after the site performs CCA/eCCA successfully, the total number of subframes (including the number of uplink subframes and the number of downlink subframes) is determined according to the uplink and downlink load integration, but the base station selects the configuration sequence number of the corresponding frame according to the number of downlink subframes. (The configuration number of the corresponding frame is also selected according to the number of uplink subframes). Then send the configuration sequence number information of the frame.
站点执行CCA/eCCA成功后,假设需要5个下行子帧(S’看做下行子帧),5个上行子帧。基站如果在帧内第2个子帧执行CCA/eCCA成功(参考授权载波的定时),那么站点就可以按照下面的方法之一处理:After the site performs CCA/eCCA successfully, it is assumed that 5 downlink subframes (S' is regarded as a downlink subframe) and 5 uplink subframes are required. If the base station performs CCA/eCCA success in the second subframe in the frame (refer to the timing of the authorized carrier), then the station can be processed according to one of the following methods:
1、如果确定执行CCA/eCCA成功的子帧总是作为非授权载波抢占成功后的帧内的第一个子帧时,站点将所述第2个子帧作为占用的帧在当前非授权载波占用期的帧的起始子帧,此时按照负载中下行子帧需要5个子帧(执行CCA/eCCA成功的子帧算作下行子帧),所以选择帧的配置序号为配置4。1. If it is determined that the subframe in which the CCA/eCCA is successfully performed is always the first subframe in the frame after the unlicensed carrier is successfully preempted, the station uses the second subframe as the occupied frame in the current unlicensed carrier. The starting subframe of the period frame, in this case, 5 subframes are required according to the downlink subframe in the payload (the subframe in which the CCA/eCCA is successfully performed is counted as the downlink subframe), so the configuration sequence number of the selected frame is configuration 4.
这种情况下,实际上非授权载波和对应的授权载波之间的帧号、子帧号、时隙号的定时不是对齐的。In this case, the timing of the frame number, the subframe number, and the slot number between the unlicensed carrier and the corresponding authorized carrier are not aligned.
2、如果非授权载波的帧严格对齐。站点选择从所述第2个子帧开始(包括第2个子帧),帧内还有5个下行子帧(S’算作下行)的帧的配置序号,按照上述方式选择结果为:配置5。站点和UE均确定CCA/eCCA执行成功的子帧位于当前帧(为配置5)中的第二个子帧。此时需要的最后1个上行子帧就会出现在下一个帧的前1个子帧中。按照这种方式,站点和UE均认为下一个帧内的前1个子帧将由下行子帧变为上行进行使用。2. If the frames of the unlicensed carrier are strictly aligned. The station selects the configuration number of the frame starting from the second subframe (including the second subframe), and there are five downlink subframes (S' is counted as downlink) in the frame, and the result of the selection is: configuration 5. Both the station and the UE determine that the subframe in which the CCA/eCCA is successfully executed is located in the second subframe in the current frame (which is configuration 5). The last uplink subframe required at this time will appear in the first subframe of the next frame. In this way, both the station and the UE consider that the first subframe in the next frame will be changed from the downlink subframe to the uplink.
3、与前2种不同,按照上行负载需要的子帧数确定帧的配置序号。站点选择从所述第2个子帧开始(包括第2个子帧),帧内还有5个上行子帧的帧的配置序号,此时为:配置4。站点和UE均认为CCA/eCCA执行成功的子帧为当前帧的配置4中的第2个子帧。此时需要的最后1个下行子帧就会出现在下一个帧的前1个子帧中。按照这种方式,下一个帧内的前1个子帧将被站点占用并作为下行子帧使用。3. Different from the first two types, the frame number of the frame is determined according to the number of subframes required for the uplink load. The station selection starts from the second subframe (including the second subframe), and there are also configuration numbers of the frames of the five uplink subframes in the frame. In this case, configuration 4: The subframe in which both the station and the UE consider that the CCA/eCCA is successfully executed is the second subframe in the configuration 4 of the current frame. The last downlink subframe required at this time will appear in the first subframe of the next frame. In this way, the first subframe in the next frame will be occupied by the station and used as a downlink subframe.
非授权载波在不同国家的管制要求不同,例如在欧洲允许占用的最大时 长为13ms,在日本允许占用的最大时长为4ms。本申请中burst data是以10ms为例进行列举的,对于13ms的burst data或4ms的burst data时,本申请的原理要是同样适用的。Unlicensed carriers have different regulatory requirements in different countries, such as the maximum allowed in Europe. The length is 13ms, and the maximum time allowed in Japan is 4ms. In the present application, the burst data is enumerated by taking 10ms as an example. For the burst data of 13ms or the burst data of 4ms, the principle of the present application is equally applicable.
综上所述,通过本发明实施例可以实现LTE系统中的非授权载波占用,最大程度的沿用了相关的LTE物理信道信令,使得对于LTE系统的影响最小。In summary, the unlicensed carrier occupation in the LTE system can be implemented in the embodiment of the present invention, and the related LTE physical channel signaling is used to the greatest extent, so that the impact on the LTE system is minimized.
显然,本领域的技术人员应该明白,上述的本发明的各模块或各步骤可以用通用的计算装置来实现,它们可以集中在单个的计算装置上,或者分布在多个计算装置所组成的网络上,可选地,它们可以用计算装置可执行的程序代码来实现,从而,可以将它们存储在存储装置中由计算装置来执行,并且在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤,或者将它们分别制作成各个集成电路模块,或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样,本发明不限制于任何特定的硬件和软件结合。It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.
以上所述仅为本发明的可选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。The above description is only an alternative embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.
工业实用性Industrial applicability
本发明实施例实现了在每次抢占到的非授权载波的时间内,使得突发数据能够有效的在有限的时间内高效传输,进而实现了在LTE系统中非授权载波的占用。 The embodiment of the invention realizes that the burst data can be efficiently transmitted in a limited time within a time period of preempting the unlicensed carrier, thereby realizing the occupation of the unlicensed carrier in the LTE system.

Claims (34)

  1. 一种非授权载波中数据的传输方法,包括:A method for transmitting data in an unlicensed carrier, comprising:
    准备突发数据Burst Data;Prepare burst data Burst Data;
    根据所述突发数据确定传输所述突发数据需要的上行子帧和下行子帧;Determining, according to the burst data, an uplink subframe and a downlink subframe required for transmitting the burst data;
    获取非授权载波;Obtain an unlicensed carrier;
    将所述上行子帧对应的第一突发数据和所述下行子帧对应的第二突发数据映射到所述非授权载波的指定子帧中;Mapping the first burst data corresponding to the uplink subframe and the second burst data corresponding to the downlink subframe to a specified subframe of the unlicensed carrier;
    通过所述指定子帧发送和/或接收所述突发数据。The burst data is transmitted and/or received through the designated subframe.
  2. 根据权利要求1所述的方法,其中,获取非授权载波包括:The method of claim 1 wherein obtaining an unlicensed carrier comprises:
    通过执行空闲信道评估CCA和/或扩展的空闲信道评估eCCA获取所述非授权载波。The unlicensed carrier is acquired by performing an idle channel evaluation CCA and/or an extended idle channel evaluation eCCA.
  3. 根据权利要求2所述的方法,其中,将所述上行子帧对应的第一突发数据和所述下行子帧对应的第二突发数据映射到所述非授权载波的指定子帧中包括:The method according to claim 2, wherein mapping the first burst data corresponding to the uplink subframe and the second burst data corresponding to the downlink subframe to a specified subframe of the unlicensed carrier includes :
    从执行CCA和/或eCCA成功的子帧中开始映射;或者,Start mapping from a successful sub-frame performing CCA and/or eCCA; or,
    从执行CCA和/或eCCA成功的子帧之后的第一个子帧中开始映射。The mapping starts from the first subframe after the successful execution of the CCA and/or eCCA successful subframe.
  4. 根据权利要求1所述的方法,其中,所述非授权载波的帧的定时与对应的授权载波的帧的定时相同,所述非授权载波的子帧的定时与对应的授权载波的子帧的定时相同。The method according to claim 1, wherein the timing of the frame of the unlicensed carrier is the same as the timing of the frame of the corresponding authorized carrier, and the timing of the subframe of the unlicensed carrier and the subframe of the corresponding authorized carrier The timing is the same.
  5. 根据权利要求1所述的方法,其中,所述下行子帧位于所述上行子帧之前。The method of claim 1, wherein the downlink subframe is located before the uplink subframe.
  6. 根据权利要求1所述的方法,其中,准备突发数据Burst Data包括:The method of claim 1 wherein preparing burst data Burst Data comprises:
    在所述突发数据的数量为固定值时,通过以下方式准备所述突发数据:When the number of burst data is a fixed value, the burst data is prepared in the following manner:
    首先按照所述下行子帧对应的第二突发数据需求准备所述突发数据,其次按照所述上行子帧对应的第一突发数据需求准备所述突发数据。The burst data is first prepared according to the second burst data requirement corresponding to the downlink subframe, and the burst data is prepared according to the first burst data requirement corresponding to the uplink subframe.
  7. 根据权利要求6所述的方法,其中,在准备所述突发数据的过程中, 当所述上行子帧对应的第一突发数据需求不能满足所述突发数据的数量时,补充虚假的所述上行子帧对应的第一突发数据来填充满所述突发数据的数量。The method of claim 6 wherein, in preparing the burst data, When the first burst data requirement corresponding to the uplink subframe cannot satisfy the number of burst data, the first burst data corresponding to the false uplink subframe is added to fill the number of burst data. .
  8. 根据权利要求1所述的方法,还包括:The method of claim 1 further comprising:
    在所述突发数据的数量为固定值时,形成与所述突发数据对应的配比信息;其中,当所述突发数据的数量为给定值M时,所述突发数据的每一种配比信息满足:X个下行子帧、Z个特殊数据子帧,Y个上行子帧,其中,X、Y、Z、M取值为整数,X、Y、Z分别小于M且大于0,或等于M,或等于0;且X、Y、Z的取值满足等式:X+Y+Z=M。When the number of the burst data is a fixed value, the ratio information corresponding to the burst data is formed; wherein, when the number of the burst data is a given value M, each of the burst data A ratio information satisfies: X downlink subframes, Z special data subframes, and Y uplink subframes, where X, Y, Z, and M are integers, and X, Y, and Z are smaller than M and greater than 0, or equal to M, or equal to 0; and the values of X, Y, and Z satisfy the equation: X+Y+Z=M.
  9. 根据权利要求8所述的方法,其中,形成与所述突发数据对应的配比信息包括:The method of claim 8, wherein forming the ratio information corresponding to the burst data comprises:
    按照所述下行子帧的数量形成所述配比信息。The ratio information is formed according to the number of the downlink subframes.
  10. 根据权利要求8所述的方法,还包括:The method of claim 8 further comprising:
    形成与所述突发数据对应的配比信息之后,将所述配比信息通过空口发给接收端。After the matching information corresponding to the burst data is formed, the matching information is sent to the receiving end through the air interface.
  11. 根据权利要求8所述的方法,还包括:The method of claim 8 further comprising:
    若第一站点形成与所述突发数据对应的配比信息之后,第一站点将所述配比信息通过X2接口发送给第二站点。After the first station forms the matching information corresponding to the burst data, the first station sends the matching information to the second station through the X2 interface.
  12. 根据权利要求8所述的方法,其中,当使用多个非授权载波同时传输所述突发数据时,所述多个非授权载波使用相同的配比信息传输所述突发数据。The method of claim 8, wherein when the burst data is simultaneously transmitted using a plurality of unlicensed carriers, the plurality of unlicensed carriers transmit the burst data using the same proportion information.
  13. 根据权利要求11所述的方法,还包括:The method of claim 11 further comprising:
    第一站点将所述配比信息通过X2接口发送给第二站点之后,在所述第二站点与所述第一站点复用所述非授权载波时,所述配比信息还用于所述第二站点的突发数据配比。After the first station sends the matching information to the second station through the X2 interface, when the second station multiplexes the unlicensed carrier with the first station, the ratio information is further used for the The burst data ratio of the second site.
  14. 根据权利要求11所述的方法,其中,所述配比信息中的下行子帧的数量大于或者等于通过所述第二站点确定的所述第二站点的突发数据的配比信息中的下行子帧的数量。 The method according to claim 11, wherein the number of downlink subframes in the ratio information is greater than or equal to the downlink in the ratio information of the burst data of the second station determined by the second station. The number of subframes.
  15. 根据权利要求11所述的方法,其中,在所述第二站点与所述第一站点复用所述非授权载波时,并且所述第二站点执行空闲信道评估CCA和/或扩展的空闲信道评估eCCA时的能量检测门限满足复用所述非授权载波时的能量检测门限时,所述第二站点根据自己的突发数据确定与所述第二站点的突发数据对应的配比信息。The method of claim 11, wherein when the second station multiplexes the unlicensed carrier with the first station, and the second station performs a clear channel assessment CCA and/or an extended idle channel When the energy detection threshold when the eCCA is evaluated satisfies the energy detection threshold when the unlicensed carrier is multiplexed, the second station determines the ratio information corresponding to the burst data of the second station according to the burst data of the second station.
  16. 根据权利要求1至15中任一项所述的方法,其中,所述指定子帧所在帧的帧长是固定的或半静态配置的,且所述帧中的指定子帧的上行或下行属性由对应的突发数据确定。The method according to any one of claims 1 to 15, wherein a frame length of a frame in which the specified subframe is located is fixed or semi-statically configured, and an uplink or downlink attribute of a specified subframe in the frame Determined by the corresponding burst data.
  17. 一种非授权载波中数据的传输装置,包括:A device for transmitting data in an unlicensed carrier, comprising:
    准备模块,设置为准备突发数据Burst Data;Prepare the module, set to prepare burst data Burst Data;
    确定模块,设置为根据所述突发数据确定传输所述突发数据需要的上行子帧和下行子帧;a determining module, configured to determine, according to the burst data, an uplink subframe and a downlink subframe required to transmit the burst data;
    获取模块,设置为获取非授权载波;Obtaining a module, configured to obtain an unlicensed carrier;
    映射模块,设置为将所述上行子帧对应的第一突发数据和所述下行子帧对应的第二突发数据映射到所述非授权载波的指定子帧中;a mapping module, configured to map the first burst data corresponding to the uplink subframe and the second burst data corresponding to the downlink subframe to a specified subframe of the unlicensed carrier;
    处理模块,设置为通过所述指定子帧发送和/或接收所述突发数据。And a processing module configured to transmit and/or receive the burst data through the designated subframe.
  18. 根据权利要求17所述的装置,其中,所述获取模块是设置为通过执行空闲信道评估CCA和/或扩展的空闲信道评估eCCA获取所述非授权载波。The apparatus of claim 17, wherein the acquisition module is configured to acquire the unlicensed carrier by performing a clear channel assessment CCA and/or an extended idle channel assessment eCCA.
  19. 根据权利要求18所述的装置,其中,所述映射模块是设置为从执行CCA和/或eCCA成功的子帧中开始映射;或者,从执行CCA和/或eCCA成功的子帧之后的第一个子帧中开始映射。The apparatus of claim 18, wherein the mapping module is configured to start mapping from a subframe in which CCA and/or eCCA is successful; or first from a subframe in which CCA and/or eCCA is successful The mapping starts in the sub-frames.
  20. 根据权利要求17所述的装置,其中,所述非授权载波的帧的定时与对应的授权载波的帧的定时相同,所述非授权载波的子帧的定时与对应的授权载波的子帧的定时相同。The apparatus according to claim 17, wherein the timing of the frame of the unlicensed carrier is the same as the timing of the frame of the corresponding authorized carrier, and the timing of the subframe of the unlicensed carrier and the subframe of the corresponding authorized carrier The timing is the same.
  21. 根据权利要求17所述的装置,其中,所述下行子帧位于所述上行子帧之前。The apparatus of claim 17, wherein the downlink subframe is located before the uplink subframe.
  22. 根据权利要求17所述的装置,其中,所述准备模块是设置为在所述突发数据的数量为固定值时,通过以下方式准备所述突发数据:首先按照所 述下行子帧对应的第二突发数据需求准备所述突发数据,其次按照所述上行子帧对应的第一突发数据需求准备所述突发数据。The apparatus according to claim 17, wherein said preparation module is configured to prepare said burst data in the following manner when said number of burst data is a fixed value: first according to The second burst data corresponding to the downlink subframe needs to prepare the burst data, and secondly prepares the burst data according to the first burst data requirement corresponding to the uplink subframe.
  23. 根据权利要求22所述的装置,其中,所述准备模块是设置为在准备所述突发数据的过程中,当所述上行子帧对应的第一突发数据需求不能满足所述突发数据的数量时,补充虚假的所述上行子帧对应的第一突发数据来填充满所述突发数据的数量。The apparatus according to claim 22, wherein said preparation module is configured to: when the burst data is prepared, when the first burst data demand corresponding to the uplink subframe cannot satisfy the burst data The first burst data corresponding to the false uplink subframe is added to fill the number of burst data.
  24. 根据权利要求17所述的装置,所述装置还包括:The apparatus of claim 17 further comprising:
    配比模块,设置为在所述突发数据的数量为固定值时,形成与所述突发数据对应的配比信息;其中,当所述突发数据的数量为给定值M时,所述突发数据的每一种配比信息满足:X个下行子帧、Z个特殊数据子帧,Y个上行子帧,其中,X、Y、Z、M取值为整数,X、Y、Z分别小于M且大于0,或等于M,或等于0;且X、Y、Z的取值满足等式:X+Y+Z=M。a ratio module, configured to form ratio information corresponding to the burst data when the number of the burst data is a fixed value; wherein, when the quantity of the burst data is a given value M, Each of the ratio information of the burst data satisfies: X downlink subframes, Z special data subframes, and Y uplink subframes, where X, Y, Z, and M are integers, X, Y, Z is less than M and greater than 0, or equal to M, or equal to 0; and the values of X, Y, and Z satisfy the equation: X+Y+Z=M.
  25. 根据权利要求24所述的装置,其中,所述配比模块是设置为通过如下方式实现形成与所述突发数据对应的配比信息:The apparatus of claim 24, wherein the ratio module is configured to form ratio information corresponding to the burst data by:
    按照所述下行子帧的数量形成所述配比信息。The ratio information is formed according to the number of the downlink subframes.
  26. 根据权利要求24所述的装置,所述装置还包括:The device of claim 24, the device further comprising:
    发送模块,设置为将所述配比信息通过空口发给接收端。The sending module is configured to send the ratio information to the receiving end through the air interface.
  27. 根据权利要求24所述的装置,其中,所述处理模块是设置为当使用多个非授权载波同时传输所述突发数据时,所述多个非授权载波使用相同的配比信息传输所述突发数据。The apparatus of claim 24, wherein the processing module is configured to transmit the burst data using the same ratio information when the burst data is simultaneously transmitted using a plurality of unlicensed carriers Burst data.
  28. 根据权利要求17至27中任一项所述的装置,其中,所述指定子帧所在帧的帧长是固定的或半静态配置的,且所述帧中的指定子帧的上行或下行属性由对应的突发数据确定。The apparatus according to any one of claims 17 to 27, wherein a frame length of a frame in which the specified subframe is located is fixed or semi-statically configured, and an uplink or downlink attribute of a specified subframe in the frame Determined by the corresponding burst data.
  29. 一种数据传输方法,其中,A data transmission method, wherein
    非授权载波中站点采用帧进行数据传输;The site in the unlicensed carrier uses frames for data transmission;
    所述帧内包括多个等长的子帧;The frame includes a plurality of subframes of equal length;
    所述子帧由待传输的突发数据决定为上行子帧或下行子帧。 The subframe is determined by the burst data to be transmitted as an uplink subframe or a downlink subframe.
  30. 如权利要求29所述的方法,其中,The method of claim 29, wherein
    所述非授权载波使用的帧的帧号、子帧号与配对的授权载波使用的帧的帧号、子帧号对齐。The frame number and the subframe number of the frame used by the unlicensed carrier are aligned with the frame number and the subframe number of the frame used by the paired authorized carrier.
  31. 根据权利要求29所述的方法,The method of claim 29,
    所述帧还包括:特殊子帧S’子帧,S’子帧中包括下行传输和/或上行传输。The frame further includes: a special subframe S' subframe, and the S' subframe includes downlink transmission and/or uplink transmission.
  32. 根据权利要求29所述的方法,还包括,The method of claim 29, further comprising
    在所述突发数据的数量为固定值时,所述帧中形成与所述突发数据对应的配比信息;其中,当所述突发数据的数量为给定值M时,所述突发数据的每一种配比信息满足:X个下行子帧、Z个特殊数据子帧,Y个上行子帧,其中,X、Y、Z、M取值为整数,X、Y、Z分别小于M且大于0,或等于M,或等于0;且X、Y、Z的取值满足等式:X+Y+Z=M。When the number of the burst data is a fixed value, the ratio information corresponding to the burst data is formed in the frame; wherein, when the number of the burst data is a given value M, the burst Each of the matching information of the sent data satisfies: X downlink subframes, Z special data subframes, and Y uplink subframes, where X, Y, Z, and M are integers, and X, Y, and Z respectively Less than M and greater than 0, or equal to M, or equal to 0; and the values of X, Y, Z satisfy the equation: X + Y + Z = M.
  33. 根据权利要求29所述的方法,其中,The method of claim 29, wherein
    所述突发数据决定的上行子帧或下行子帧的信令,或者所述帧的配置序号信息,通过下行控制信息DCI进行传输,或者通过预留信号或初始信号进行暗含传输。The signaling of the uplink subframe or the downlink subframe determined by the burst data, or the configuration sequence number information of the frame, is transmitted by using the downlink control information DCI, or implicitly transmitted by using a reserved signal or an initial signal.
  34. 根据权利要求29所述的方法,其中,The method of claim 29, wherein
    所述子帧由待传输的突发数据决定为上行子帧或下行子帧之前,不定义所述子帧为上行子帧或下行子帧。 Before the subframe is determined by the burst data to be transmitted as an uplink subframe or a downlink subframe, the subframe is not defined as an uplink subframe or a downlink subframe.
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