CN105577339A - Data transmission method and apparatus - Google Patents

Data transmission method and apparatus Download PDF

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Publication number
CN105577339A
CN105577339A CN201410623704.4A CN201410623704A CN105577339A CN 105577339 A CN105577339 A CN 105577339A CN 201410623704 A CN201410623704 A CN 201410623704A CN 105577339 A CN105577339 A CN 105577339A
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China
Prior art keywords
subframe
laa
intercepting
intercept
region
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CN201410623704.4A
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Chinese (zh)
Inventor
梁春丽
戴博
杨维维
鲁照华
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ZTE Corp
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ZTE Corp
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Priority to CN201410623704.4A priority Critical patent/CN105577339A/en
Priority to PCT/CN2015/087272 priority patent/WO2016070667A1/en
Publication of CN105577339A publication Critical patent/CN105577339A/en
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a data transmission method and device. The method includes the following steps that: whether non-authorized carriers are in an idle state is detected; and if in the non-authorized carriers are in an idle state, data transmission is carried out in the non-authorized carriers. With the data transmission method and device of the invention adopted, problems brought about by a situation that no methods for performing data transmission on non-authorized carriers exist in the prior art can be solved, and data transmission can be performed on the non-authorized carriers.

Description

Data transmission method and device
Technical field
The present invention relates to the communications field, in particular to a kind of data transmission method and device.
Background technology
Up to now, well-known Long Term Evolution (LongTermEvolution, referred to as LTE) is deployed in authorize in carrier wave and runs.But along with the quick growth of data service, in the near future, authorize carrier wave can not bear lower googol like this again according to amount.Therefore, in unauthorized carrier wave, disposing LTE, share the data traffic of authorizing in carrier wave by unauthorized carrier wave, is the important evolution tendency of follow-up LTE one of developing.
In addition, for unauthorized carrier wave, also there is a lot of advantage: free/low expense; Requirements for sale is low, and cost is low, and such as individual, enterprise can participate in disposing, and the equipment of equipment vendor can be any; When multiple different system operation is shared in frequency spectrum, or when the different operators of same system is runed in unauthorized carrier wave, the mode of some shared resources can be considered, to improve spectrum efficiency; Wireless access technology is many; Wireless access website is many; Application is many, from related data display, multi-service is mentioned can run in unauthorized carrier wave, such as machine to machine (MachinetoMachine, referred to as M2M), automobile is to business such as automobiles (Vehicletovehicle, referred to as V2V).
For the working method of unauthorized carrier wave, normally by means of mandate carrier wave, namely unauthorized carrier wave carrys out work with authorizing carrier wave (under being operated in LTE pattern) by the mode of carrier aggregation, this mode is called authorizes photocarrier method access (Licensed-AssistantAccess, referred to as LAA).In addition, consider unauthorized carrier wave, have multiple system and be also operated on identical frequency spectrum, as WIFI system.Therefore, LTE is operated on unauthorized carrier wave, and it is vital for solving with the coexistence problems of other system.And, in some countries and regions, for the use of unlicensed spectrum, there is corresponding Control Policy.For this reason, the control for unauthorized carrier wave limits, and formulates corresponding data transmission method, is the problem that LTE system uses unauthorized carrier wave urgently to be resolved hurrily.
For the problem of carrying out the method for transfer of data on unauthorized carrier wave that the shortage existed in correlation technique is correlated with, at present effective solution is not yet proposed.
Summary of the invention
The invention provides a kind of data transmission method and device, at least to solve the problem of carrying out the method for transfer of data on unauthorized carrier wave that the shortage that exists in correlation technique is correlated with.
According to an aspect of the present invention, provide a kind of data transmission method, comprising: detect unauthorized carrier wave and whether be in idle condition; When testing result be described unauthorized carrier wave be in idle condition, in described unauthorized carrier wave, carry out transfer of data.
Preferably, detect described unauthorized carrier wave whether to be in idle condition and to comprise: utilize the free time of the intercepting subframe unauthorized carrier wave described in region detection in transmission frame whether to be in idle condition, wherein, described transmission frame comprises intercepts subframe and transmission subframe, the described number intercepting subframe and described transmission subframe is one or more, described in intercept subframe and comprise one of following: free time region; Free time region and data transmission region; Described transmission subframe comprise following one of at least: data transmission region; Data transmission region and free time region.
Preferably, in described unauthorized carrier wave, carry out transfer of data to comprise: data transmission region and the described transmission subframe of intercepting subframe described in utilization carry out transfer of data in described unauthorized carrier wave.
Preferably, the length of described transmission frame is fixing or is configured according to predetermined rule, wherein, according to transmission frame described in predetermined rule configuration comprise following one of at least: the length configuring described transmission frame according to high-rise configuration parameter; Configure the length of described transmission frame about the control of unauthorized carrier wave according to country regulation.
Preferably, it is fixing or configuration for intercepting the position of subframe in described transmission frame described in.
Preferably, when described to intercept the position of subframe in described transmission frame be fixing time, describedly to intercept in subframe that subframe is positioned at the first predetermined quantity of the front end of described transmission frame or in the subframe of the second predetermined quantity of described transmission frame end, wherein, the first described predetermined quantity and described second predetermined quantity are fixing or configuration.
Preferably, detect described unauthorized carrier wave whether to be in idle condition and to comprise: intercept described in multiple successively and subframe detects described unauthorized carrier wave whether be in idle condition, when wherein one intercept subframe detects that described unauthorized carrier wave is idle condition time, then all after this intercepts subframe intercept subframe and all transmission subframes all for carrying out transfer of data.
Preferably, intercept described in subframe free time region length determine according to one of following condition: described in intercept subframe free time region length be fixing length; Described intercept subframe free time region length be determine according to the predefined parameter of described transmission frame; Described intercept subframe free time region length for according to described in intercept that the data transmission scenarios of the subframe of the 3rd predetermined quantity before subframe determines; Described intercept subframe free time region length whether be in time needed for idle condition for detecting described unauthorized carrier wave.
Preferably, when described intercept subframe free time region length whether be in the time needed for idle condition for detecting described unauthorized carrier wave time, described transmission subframe free time region length determine according to one of following condition: described transmission subframe free time region length be fixing length; Described transmission subframe free time region length be determine according to the predefined parameter of described transmission frame.
Preferably, the predefined parameter of described transmission frame comprises: the length of carrying out the time zone of transfer of data in described transmission frame.
Preferably, whether free time unauthorized carrier wave described in region detection of intercepting described in utilization in subframe is in idle condition comprises: when the described length intercepting the region of free time in subframe be fixing or for determining according to the predefined parameter of described transmission frame time, described intercept subframe free time region end point detection described in unauthorized carrier wave whether be in idle condition, wherein, after determining that described unauthorized carrier wave is in idle condition, transfer of data is carried out in described data transmission period region of intercepting subframe.
Preferably, described data comprise following one of at least: authorize the proprietary signal of photocarrier method access LAA, LAA dedicated channel, business datum, wherein, the proprietary signal of described LAA comprise following one of at least: for represent channel occupancy signal, for realizing synchronous signal, reference signal for channel measurement, described LAA dedicated channel comprises: for representing the channel of channel occupancy and/or the channel for carrying system message.
Preferably, described data transmission period region of intercepting subframe is carried out transfer of data comprise following one of at least: on described data transmission period region of intercepting subframe, transmit following data one of at least according to the described length intercepting the data transmission period region of subframe: the proprietary signal of described LAA, described LAA dedicated channel, described business datum; Described data transmission period region of intercepting subframe is transmitted the proprietary signal of described LAA and/or described LAA dedicated channel.
Preferably, on described data transmission period region of intercepting subframe, transfer of data is carried out according to the described length intercepting the data transmission period region of subframe, comprise: when the orthogonal frequency division multiplex OFDM symbol of large 4th predetermined quantity of the length that the described length intercepting the data transmission period region of subframe takies than the proprietary signal of described LAA and/or LAA dedicated channel, described data transmission period region of intercepting subframe is transmitted the proprietary signal of described LAA and/or described LAA dedicated channel, also transmits described business datum simultaneously; Otherwise, the proprietary signal of described LAA and/or LAA dedicated channel are transmitted in described data transmission period region of intercepting subframe, or transmit described business datum.
Preferably, intercept described in determining according to the result whether being in the detection of idle condition to described unauthorized carrier wave subframe number and described in intercept the time span of the transfer of data in subframe, and/or, the number of described transmission subframe is determined according to predetermined configurations parameter.
Preferably, when there being business to transmit demand, subframe start carry out the detection whether described unauthorized carrier wave is in idle condition, described subframe is for intercepting subframe, if intercept subframe described in current to carry out testing result that whether described unauthorized carrier wave be in idle condition when not meeting pre-conditioned, then proceed described detection in next subframe, described next subframe also for intercepting subframe, until meet described pre-conditioned.
Preferably, described intercept subframe detect described unauthorized carrier wave whether be in idle condition comprise following one of at least: when described intercept in the end of subframe have at least the OFDM symbol of the 5th predetermined quantity be not useable for detecting described unauthorized carrier wave whether be in idle condition time, whether the described unauthorized carrier wave of OFDM symbol detection of intercepting subframe described in utilization remaining except the OFDM symbol of described 5th predetermined quantity of end is in idle condition, and testing result do not meet described pre-conditioned time, the next one of intercepting subframe described in skipping to is intercepted in subframe and is detected described unauthorized carrier wave, wherein, the length of the OFDM symbol of described 5th predetermined quantity is at least the length that the proprietary signal of described LAA and/or described LAA dedicated channel take, when the described all OFDM symbol intercepting subframe all support whether detect described unauthorized carrier wave is in idle condition, intercept subframe described in utilization and whether idle condition is in described unauthorized carrier wave detects.
Preferably, when described intercept the end of subframe have at least the OFDM symbol of the 5th predetermined quantity be not useable for detect described unauthorized carrier wave whether be in idle condition, complete described detection complete the moment to described time zone of intercepting subframe finish time carries out transfer of data comprise following one of at least: according to described complete the moment to described in intercept the OFDM symbol that subframe finish time comprises number carry out transfer of data, wherein, described data comprise following one of at least: authorize the proprietary signal of photocarrier method access LAA, LAA dedicated channel, business datum, described complete the moment to described in intercept subframe finish time and send the proprietary signal of described LAA and/or LAA dedicated channel.
Preferably, according to described complete the moment to described in intercept the OFDM symbol that subframe finish time comprises number carry out transfer of data comprise following one of at least: when described complete the moment to described in intercept the OFDM symbol that subframe finish time comprises the OFDM symbol of length large 6th predetermined quantity that takies than the proprietary signal of described LAA and/or described LAA dedicated channel of length time, the described OFDM symbol comprised is transmitted the proprietary signal of described LAA and/or LAA dedicated channel, also transmit described business datum simultaneously, described intercept subframe after first subframe upload defeated business datum, when described complete the moment to described in intercept the OFDM symbol that subframe finish time comprises the length that takies than the proprietary signal of described LAA and/or LAA dedicated channel of length large and, when the OFDM symbol sum of the length taken than the proprietary signal of described LAA and/or described LAA dedicated channel and described 6th predetermined quantity is little, the described OFDM symbol comprised is transmitted the proprietary signal of described LAA and/or described LAA dedicated channel, described intercept subframe after first subframe upload defeated business datum.
Preferably, when the described all OFDM symbol intercepting subframe all support whether detect described unauthorized carrier wave is in idle condition, after completing whether the detection of idle condition be in described unauthorized carrier wave, also comprise following one of at least: according to described unauthorized carrier wave has been detected complete the moment to described in intercept subframe finish time time zone carry out the transmission of data, wherein, described complete the moment to described in intercept subframe finish time time zone comprise described in intercept the data transmission period region of subframe, described data comprise following one of at least: authorize the proprietary signal of photocarrier method access LAA, LAA dedicated channel, business datum, the OFDM symbol that described data transmission period region of intercepting subframe comprises transmits the proprietary signal of described LAA of predetermined portions and/or described LAA dedicated channel, described intercept subframe after first subframe transfer the whole proprietary signal of described LAA and/or described LAA dedicated channel, transmit described business datum afterwards.
Preferably, also comprise following one of at least: during the OFDM symbol of large 6th predetermined quantity of the length that the length of the described OFDM symbol comprised when described data transmission period region of intercepting subframe takies than the proprietary signal of described LAA and/or described LAA dedicated channel, the described OFDM symbol comprised is transmitted the proprietary signal of described LAA and/or LAA dedicated channel, simultaneously also service data transmission, described intercept subframe after first subframe upload defeated business datum; The length that the length of the described OFDM symbol comprised when described data transmission period region of intercepting subframe takies than the proprietary signal of described LAA and/or described LAA dedicated channel large and, when the OFDM symbol sum of the length taken than the proprietary signal of described LAA and/or described LAA dedicated channel and described 6th predetermined quantity is little, the described OFDM symbol comprised is transmitted the proprietary signal of described LAA and/or described LAA dedicated channel, described intercept subframe after first subframe upload defeated business datum; When the number of the described OFDM symbol comprised when described data transmission period region of intercepting subframe is less than the number of the OFDM symbol that the proprietary signal of described LAA and/or described LAA dedicated channel take, the described OFDM symbol comprised is transmitted the proprietary signal of described LAA of predetermined portions and/or described LAA dedicated channel, described intercept subframe after first subframe transfer the whole proprietary signal of described LAA and/or described LAA dedicated channel, transmit described business datum afterwards.
Preferably, when the number of the described OFDM symbol comprised when described data transmission region of intercepting subframe is more than or equal to the number of the OFDM symbol that the proprietary signal of described LAA and/or described LAA dedicated channel take, the complete proprietary signal of described LAA and/or described LAA dedicated channel is transmitted described intercepting in the last OFDM symbol equal with the number of the OFDM symbol that the proprietary signal of described LAA and/or described LAA dedicated channel take of subframe, the proprietary signal of described LAA of described business datum or predetermined fraction and/or described LAA dedicated channel is transmitted in remaining OFDM symbol.
Preferably, when described data transmission region of intercepting subframe includes non-integral multiple OFDM symbol, the time zone of described non-integral multiple OFDM symbol repeats for the part of first complete OFDM symbol after completing the moment described in transmitting.
Preferably, when the described data transmitted comprise the synchronizing signal of Long Term Evolution LTE system, intercept described in utilization transmission that subframe and described transmission subframe carry out data in described unauthorized carrier wave comprise following one of at least: the synchronizing signal first transmission subframe after described unauthorized carrier wave has been detected being transmitted described LTE system; With authorize the synchronizing signal transmission subframe of carrier transmission synchronizing channel place subframe alignment being transmitted described LTE system; Described data transmission region of intercepting subframe is transmitted the synchronizing signal of described LTE system.
Preferably, first transmission subframe after described unauthorized carrier wave has been detected transmits the synchronizing signal of described LTE system, when transmitting subframe more than the 7th predetermined quantity of the quantity of subframe, transmitting with described first the synchronizing signal subframe of subframe at interval of the 8th predetermined quantity being transmitted described LTE system.
Preferably, described transmission subframe is used for downlink data transmission and/or transmitting uplink data.
Preferably; when described transmission subframe is used for uplink and downlink transfer of data; in described transmission frame, special subframe is set, wherein, described special subframe comprise following one of at least: descending pilot frequency time slot, up-downgoing Transition Guard interval, uplink pilot time slot, free time region.
Preferably; when described transmission subframe is used for uplink and downlink transfer of data; in described transmission frame, special subframe is set; wherein; described intercept subframe comprise following one of at least: descending pilot frequency time slot, up-downgoing Transition Guard interval, uplink pilot time slot; free time region, data transmission region.
Preferably, subframe is intercepted described in and described special subframe duration sum is preset value.
Preferably, described transmission frame order comprises one of following: downlink transfer subframe, special subframe, uplink subframe, intercept subframe, wherein said special subframe comprises descending pilot frequency time slot, up-downgoing Transition Guard interval, described subframe of intercepting comprises free time region, and described special subframe and the described duration sum intercepting subframe are the first preset time value; Downlink transfer subframe, special subframe, uplink subframe, intercept subframe, wherein said special subframe comprises descending pilot frequency time slot, up-downgoing Transition Guard interval, described intercept subframe comprise uplink pilot time slot and free time region, described special subframe and the described duration sum intercepting subframe are described first preset time value; Downlink transfer subframe, special subframe, uplink subframe, intercept subframe, wherein said special subframe comprises descending pilot frequency time slot, up-downgoing Transition Guard interval, uplink pilot time slot, described subframe of intercepting comprises free time region, and described special subframe and the described duration sum intercepting subframe are described first preset time value; Downlink transfer subframe, special subframe, uplink subframe, intercept subframe, wherein said special subframe comprises descending pilot frequency time slot, up-downgoing Transition Guard interval, uplink pilot time slot, described intercept subframe comprise data transmission region and free time region, described special subframe and the described duration sum intercepting subframe are the second preset time value; Intercept subframe, downlink transfer subframe, special subframe, uplink subframe, wherein, described subframe of intercepting comprises free time region and descending pilot frequency time slot, and described special subframe comprises the up-downgoing translation and protection time, and described special subframe and the described duration sum intercepting subframe are described first preset time value; Intercept subframe, downlink transfer subframe, special subframe, uplink subframe, wherein, described subframe of intercepting comprises free time region and descending pilot frequency time slot, and described special subframe comprises up-downgoing translation and protection time and uplink pilot time slot, and described special subframe and the described duration sum intercepting subframe are described first preset time value; Intercept subframe, downlink transfer subframe, special subframe, uplink subframe, wherein, described intercept subframe comprise uplink pilot time slot, free time region and descending pilot frequency time slot, described special subframe comprises the up-downgoing translation and protection time, and described special subframe and the described duration sum intercepting subframe are described first preset time value; Intercept subframe, downlink transfer subframe, special subframe, uplink subframe, wherein, described subframe of intercepting comprises free time region and data transmission region, and described special subframe comprises descending pilot frequency time slot, up-downgoing translation and protection time and uplink pilot time slot, and described special subframe and the described duration sum intercepting subframe are described second preset time value; Intercept subframe, uplink subframe, special subframe, downlink transfer subframe, wherein, described intercept subframe comprise descending pilot frequency time slot, free time region and uplink pilot time slot, special time slot comprises the up-downgoing translation and protection time, and described special subframe and the described duration sum intercepting subframe are described first preset time value; Intercept subframe, uplink subframe, special subframe, downlink transfer subframe, wherein, described subframe of intercepting comprises free time region and uplink pilot time slot, and special time slot comprises up-downgoing translation and protection time and descending pilot frequency time slot, and described special subframe and the described duration sum intercepting subframe are described first preset time value; Intercept subframe; uplink subframe; special subframe; downlink transfer subframe; wherein; described subframe of intercepting comprises free time region and data transmission region, and special time slot comprises uplink pilot time slot, up-downgoing translation and protection time and descending pilot frequency time slot, and described special subframe and the described duration sum intercepting subframe are described second preset time value.
Preferably, when described transmission subframe is used for uplink and downlink transfer of data, for carrying out the subframe of transmitting uplink data and the subframe for carrying out downlink data transmission one of is at least determined in the following manner: determined by semi-static high-level signaling; Indicated by dynamic signaling; Determined by the mode of scheduling.
According to a further aspect in the invention, providing a kind of data transmission device, comprising: detection module, whether being in idle condition for detecting unauthorized carrier wave; Transport module, in testing result be described unauthorized carrier wave be in idle condition, in described unauthorized carrier wave, carry out the transmission of data.
By the present invention, the unauthorized carrier wave of detection is adopted whether to be in idle condition; When testing result be described unauthorized carrier wave be in idle condition, transfer of data is carried out in described unauthorized carrier wave, solve the problem of carrying out the method for transfer of data on unauthorized carrier wave that the shortage that exists in correlation technique is correlated with, and then reach the effect realizing carrying out transfer of data on unauthorized carrier wave.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the data transmission method according to the embodiment of the present invention;
Fig. 2 is the structured flowchart of the data transmission device according to the embodiment of the present invention;
Fig. 3 is the LBT schematic diagram of mechanism of the equipment FBE based on frame according to the embodiment of the present invention;
Fig. 4 is the LBT schematic diagram of mechanism of the equipment LBE based on load according to the embodiment of the present invention;
Fig. 5 is the data transmission structure schematic diagram one according to the embodiment of the present invention;
Fig. 6 is the schematic diagram one sending signal according to the data transmission period region of the embodiment of the present invention;
Fig. 7 is the schematic diagram two sending signal according to the data transmission period region of the embodiment of the present invention;
Fig. 8 is the schematic diagram three sending signal according to the data transmission period region of the embodiment of the present invention;
Fig. 9 is the schematic diagram four sending signal according to the data transmission period region of the embodiment of the present invention;
Figure 10 is the schematic diagram five sending signal according to the data transmission period region of the embodiment of the present invention;
Figure 11 is the data transmission structure schematic diagram two according to the embodiment of the present invention;
Figure 12 is the data transmission structure schematic diagram three according to the embodiment of the present invention;
Figure 13 is the configuration schematic diagram intercepting subframe according to the embodiment of the present invention;
Figure 14 is the data transmission structure schematic diagram four according to the embodiment of the present invention;
Figure 15 remains according to intercepting in subframe of the embodiment of the present invention schematic diagram one that the transmission time sends signal;
Figure 16 remains according to intercepting in subframe of the embodiment of the present invention schematic diagram two that the transmission time sends signal;
Figure 17 remains according to intercepting in subframe of the embodiment of the present invention schematic diagram three that the transmission time sends signal;
Figure 18 remains according to intercepting in subframe of the embodiment of the present invention schematic diagram four that the transmission time sends signal;
Figure 19 remains according to intercepting in subframe of the embodiment of the present invention schematic diagram five that the transmission time sends signal;
Figure 20 remains according to intercepting in subframe of the embodiment of the present invention schematic diagram six that the transmission time sends signal;
Figure 21 remains according to intercepting in subframe of the embodiment of the present invention schematic diagram seven that the transmission time sends signal;
Figure 22 remains according to intercepting in subframe of the embodiment of the present invention schematic diagram eight that the transmission time sends signal;
Figure 23 is the data transmission structure schematic diagram five according to the embodiment of the present invention;
Figure 24 is the data transmission structure schematic diagram six according to the embodiment of the present invention;
Figure 25 is the data transmission structure schematic diagram seven according to the embodiment of the present invention;
Figure 26 is the data transmission structure schematic diagram eight according to the embodiment of the present invention;
Figure 27 is the data transmission structure schematic diagram nine according to the embodiment of the present invention;
Figure 28 is the schematic diagram one sent according to synchronizing signal on the unauthorized carrier wave of the LAA of the embodiment of the present invention;
Figure 29 is the schematic diagram two sent according to synchronizing signal on the unauthorized carrier wave of the LAA of the embodiment of the present invention;
Figure 30 is the schematic diagram three sent according to synchronizing signal on the unauthorized carrier wave of the LAA of the embodiment of the present invention;
Figure 31 is the schematic diagram four sent according to synchronizing signal on the unauthorized carrier wave of the LAA of the embodiment of the present invention;
Figure 32 is the schematic diagram one according to the position of synchronizing signal in subframe when the unauthorized carrier wave of the LAA of the embodiment of the present invention sending synchronizing signal;
Figure 33 is the schematic diagram two according to the position of synchronizing signal in subframe when the unauthorized carrier wave of the LAA of the embodiment of the present invention sending synchronizing signal;
Figure 34 is the schematic diagram three according to the position of synchronizing signal in subframe when the unauthorized carrier wave of the LAA of the embodiment of the present invention sending synchronizing signal;
Figure 35 is for the data transmission structure schematic diagram one during downstream transmission according to the LAA unlicensed spectrum of the embodiment of the present invention;
Figure 36 is for the data transmission structure schematic diagram two during downstream transmission according to the LAA unlicensed spectrum of the embodiment of the present invention;
Figure 37 is for the data transmission structure schematic diagram three during downstream transmission according to the LAA unlicensed spectrum of the embodiment of the present invention;
Figure 38 is for the data transmission structure schematic diagram four during downstream transmission according to the LAA unlicensed spectrum of the embodiment of the present invention;
Figure 39 is for the data transmission structure schematic diagram five during downstream transmission according to the LAA unlicensed spectrum of the embodiment of the present invention;
Figure 40 is for the data transmission structure schematic diagram six during downstream transmission according to the LAA unlicensed spectrum of the embodiment of the present invention;
Figure 41 is for the data transmission structure schematic diagram seven during downstream transmission according to the LAA unlicensed spectrum of the embodiment of the present invention;
Figure 42 is for the data transmission structure schematic diagram eight during downstream transmission according to the LAA unlicensed spectrum of the embodiment of the present invention;
Figure 43 is for the data transmission structure schematic diagram nine during downstream transmission according to the LAA unlicensed spectrum of the embodiment of the present invention;
Figure 44 is for the data transmission structure schematic diagram ten during downstream transmission according to the LAA unlicensed spectrum of the embodiment of the present invention;
Figure 45 is for the data transmission structure schematic diagram 11 during downstream transmission according to the LAA unlicensed spectrum of the embodiment of the present invention;
Figure 46 is for the data transmission structure schematic diagram 12 during downstream transmission according to the LAA unlicensed spectrum of the embodiment of the present invention;
Figure 47 is the data transmission structure schematic diagram ten according to the embodiment of the present invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Provide a kind of data transmission method in the present embodiment, Fig. 1 is the flow chart of the data transmission method according to the embodiment of the present invention, and as shown in Figure 1, this flow process comprises the steps:
Step S102, detects unauthorized carrier wave and whether is in idle condition;
Step S104, when testing result be this unauthorized carrier wave be in idle condition, in this unauthorized carrier wave, carry out transfer of data.
Pass through above-mentioned steps, detect unauthorized carrier wave and whether be in idle condition, when testing result be this unauthorized carrier wave be in idle condition, transfer of data is carried out in this unauthorized carrier wave, solve the problem of carrying out the method for transfer of data on unauthorized carrier wave that the shortage that exists in correlation technique is correlated with, and then reach the effect realizing carrying out transfer of data on unauthorized carrier wave.
It is multiple for detecting the method whether unauthorized carrier wave be in idle condition, in an optional embodiment, unauthorized carrier wave can be detected by the following method and whether be in idle condition: utilize free time this unauthorized carrier wave of region detection of intercepting subframe in transmission frame whether to be in idle condition, wherein, this transmission frame comprises intercepts subframe and transmission subframe, the number intercepting subframe and transmission subframe is one or more, intercepts subframe and comprises one of following: free time region; Free time region and data transmission region, transmission subframe comprises one of following: data transmission region; Data transmission region and free time region.
Wherein, in unauthorized carrier wave, carry out transfer of data to comprise: utilize above-mentioned intercept subframe data transmission region and above-mentioned transmission subframe in unauthorized carrier wave, carry out transfer of data.That is, in this embodiment, be utilize transmission frame whether to be in idle condition inspection to unauthorized carrier wave, and utilize this transmission frame to realize the transmission of data, thus reach the effect of carrying out transfer of data on unauthorized carrier wave.
In a preferred embodiment, the length of transmission frame is fixing or is configured according to predetermined rule, wherein, according to this transmission frame of predetermined rule configuration comprise following one of at least: the length configuring this transmission frame according to high-rise configuration parameter; Configure the length of this transmission frame about the control of unauthorized carrier wave according to country regulation.Further, when configuring the length of transmission frame according to above-mentioned high-rise configuration parameter, the length of transmission frame can be constant within the configuration cycle of high-rise configuration parameter.
Wherein, the above-mentioned position of subframe in this transmission frame of intercepting is fixing or configuration.
In a preferred embodiment, when to intercept the position of subframe in transmission frame be fixing, intercept in subframe that subframe is positioned at the first predetermined quantity of the front end of this transmission frame or in the subframe of the second predetermined quantity of transmission frame end, wherein, the first predetermined quantity and the second predetermined quantity are fixing or configurable.
In a preferred embodiment, detect unauthorized carrier wave whether to be in idle condition and to comprise: subframe detects unauthorized carrier wave whether be in idle condition multiple intercepting successively, when wherein one intercept subframe detects that this unauthorized carrier wave is idle condition time, then all after this intercepts subframe intercept subframe and all transmission subframes all for carrying out transfer of data.
In a preferred embodiment, intercept subframe free time region length determine according to one of following condition: the length intercepting subframe free time region is fixing length; Intercept subframe free time region length be determine according to the predefined parameter of transmission frame; Intercept subframe free time region length be determine according to the data transmission scenarios of the subframe of intercepting the 3rd predetermined quantity before subframe; Intercept subframe free time region length whether be in time needed for idle condition for detecting unauthorized carrier wave; Wherein, when transmission frame comprise multiple intercept subframe time, multiple intercept in subframe free time region can be identical, also can be different.
Wherein, when intercept subframe free time region length for detect unauthorized carrier wave whether be in the time needed for idle condition time, transmission subframe free time region length determine according to one of following condition: transmission subframe free time region length be fixing length; Transmission subframe free time region length be determine according to the predefined parameter of transmission frame.
Wherein, the predefined parameter of above-mentioned transmission frame can comprise: the length of carrying out the time zone of transfer of data in transmission frame.
In a preferred embodiment, utilize the unauthorized carrier wave of free time region detection of intercepting in subframe whether to be in idle condition and to comprise: when the length that this intercepts the region of free time in subframe be fixing or for determining according to the predefined parameter of transmission frame time, this intercept subframe free time region the unauthorized carrier wave of end point detection whether be in idle condition, wherein, after determining that this unauthorized carrier wave is in idle condition, transfer of data is carried out in the data transmission period region of intercepting subframe.
Wherein, above-mentioned data can comprise following one of at least: authorize the proprietary signal of photocarrier method access LAA, LAA dedicated channel, business datum, wherein, the proprietary signal of this LAA comprise following one of at least: for represent channel occupancy signal, for realizing synchronous signal, reference signal for channel measurement, this LAA dedicated channel comprises: for representing the channel of channel occupancy and/or the channel for carrying system message.
In a preferred embodiment, the data transmission period region of intercepting subframe is carried out transfer of data comprise following one of at least: on the data transmission period region of intercepting subframe, transmit following data one of at least according to the length in the data transmission period region of intercepting subframe: the proprietary signal of LAA, LAA dedicated channel, business datum; The data transmission period region of intercepting subframe is transmitted the proprietary signal of LAA and/or LAA dedicated channel.
In preferably implementing at one, on the data transmission period region of intercepting subframe, carry out transfer of data according to the length in the data transmission period region of intercepting subframe to comprise: when the orthogonal frequency division multiplex OFDM symbol of large 4th predetermined quantity of the length that the length that this intercepts the data transmission period region of subframe takies than the proprietary signal of LAA and/or LAA dedicated channel, the proprietary signal of LAA and/or LAA dedicated channel are transmitted in the data transmission period region that this intercepts subframe, simultaneously also service data transmission; Otherwise, the proprietary signal of LAA and/or LAA dedicated channel are transmitted in the data transmission period region that this intercepts subframe, or service data transmission.
In a preferred embodiment, intercept described in determining according to the result whether being in the detection of idle condition to described unauthorized carrier wave subframe number and described in intercept the time span of the transfer of data in subframe, and/or, the number of this transmission subframe is determined according to predetermined configurations parameter.
In a preferred embodiment, when there being business to transmit demand, subframe start carry out the detection whether unauthorized carrier wave is in idle condition, this subframe is for intercepting subframe, if current intercept subframe carry out testing result that whether unauthorized carrier wave be in idle condition do not meet pre-conditioned time, then continue to detect this unauthorized carrier wave in next subframe, this next subframe also for intercepting subframe, until meet above-mentioned pre-conditioned.
Wherein, detect unauthorized carrier wave and whether be in idle condition and can comprise with under type one of at least intercepting subframe: when having at least the OFDM symbol of the 5th predetermined quantity to be not useable in the end of intercepting subframe to detect unauthorized carrier wave whether to be in idle condition, the OFDM symbol intercepting subframe remainder except the OFDM symbol of the 5th predetermined quantity of end except is utilized to detect unauthorized carrier wave and whether be in idle condition, and testing result do not meet above-mentioned pre-conditioned time, skip to the next one of intercepting subframe to intercept in subframe and detect this unauthorized carrier wave, wherein, the length of the OFDM symbol of the 5th predetermined quantity is at least the length that the proprietary signal of LAA and/or described LAA dedicated channel take, when all OFDM symbol intercepting subframe all can be used for detecting described unauthorized carrier wave whether be in idle condition time, utilize and intercept subframe and whether idle condition is in unauthorized carrier wave detects.
When intercept subframe end have at least the OFDM symbol of the 5th predetermined quantity be not useable for detecting unauthorized carrier wave whether be in idle condition, complete to unauthorized carrier detect complete the moment to the time zone of intercepting subframe finish time carries out transfer of data comprise following one of at least: complete the moment and carry out transfer of data according to above-mentioned to the number intercepting the OFDM symbol that subframe finish time comprises, wherein, above-mentioned data can comprise following one of at least: authorize the proprietary signal of photocarrier method access LAA, LAA dedicated channel, business datum; The proprietary signal of LAA and/or LAA dedicated channel is sent completing the moment to intercepting subframe finish time.
According to above-mentioned complete the moment to the number intercepting the OFDM symbol that subframe finish time comprises carry out transfer of data comprise following one of at least: when being carved into the OFDM symbol of large 6th predetermined quantity of length that the length of intercepting the OFDM symbol that subframe finish time comprises takies than the proprietary signal of LAA and/or LAA dedicated channel when it is completed, the OFDM symbol comprised is transmitted the proprietary signal of LAA and/or LAA dedicated channel, simultaneously also service data transmission, first subframe after intercepting subframe uploads defeated business datum; Be carved into when it is completed length that the length of intercepting the OFDM symbol that subframe finish time comprises takies than the proprietary signal of LAA and/or LAA dedicated channel large and, when the OFDM symbol sum of the length taken than the proprietary signal of LAA and/or LAA dedicated channel and the 6th predetermined quantity is little, the OFDM symbol comprised is transmitted the proprietary signal of LAA and/or LAA dedicated channel, and first subframe after intercepting subframe uploads defeated business datum.
When all OFDM symbol intercepting subframe all can be used for detecting unauthorized carrier wave whether be in idle condition time, after completing whether the detection of idle condition be in unauthorized carrier wave, can also comprise following one of at least: complete according to what detected unauthorized carrier wave moment to carry out data transmission to the time zone of intercepting subframe finish time, wherein, this completes the moment and comprises the data transmission period region of intercepting subframe to the time zone of intercepting subframe finish time, above-mentioned data can comprise following one of at least: authorize the proprietary signal of photocarrier method access LAA, LAA dedicated channel, business datum, the OFDM symbol that the data transmission period region of intercepting subframe comprises is transmitted the proprietary signal of LAA and/or the LAA dedicated channel of predetermined portions, first subframe after intercepting subframe transfers the proprietary signal of whole LAA and/or LAA dedicated channel, afterwards service data transmission.
When carrying out transfer of data, can also comprise following one of at least: during the OFDM symbol of large 6th predetermined quantity of the length that the length of the OFDM symbol comprised when the data transmission period region of intercepting subframe takies than the proprietary signal of LAA and/or LAA dedicated channel, the OFDM symbol comprised is transmitted the proprietary signal of LAA and/or LAA dedicated channel, simultaneously also service data transmission, first subframe after intercepting subframe uploads defeated business datum; The length that the length of the OFDM symbol comprised when the data transmission period region of intercepting subframe takies than the proprietary signal of LAA and/or LAA dedicated channel large and, time less than the OFDM symbol sum of the proprietary signal of LAA and the/length of channel occupancy and the 6th predetermined quantity, the OFDM symbol comprised is transmitted the proprietary signal of LAA and/or LAA dedicated channel, and first subframe after intercepting subframe uploads defeated business datum; When the number of the OFDM symbol comprised when the data transmission period region of intercepting subframe is less than the number of the OFDM symbol that the proprietary signal of LAA and/or LAA dedicated channel take, the OFDM symbol comprised is transmitted the proprietary signal of LAA and/or the LAA dedicated channel of predetermined portions, first subframe after intercepting subframe transfers the proprietary signal of whole LAA and/or LAA dedicated channel, afterwards service data transmission.
When the number of the OFDM symbol comprised when the data transmission region of intercepting subframe is more than or equal to the number of the OFDM symbol that the proprietary signal of LAA and/or LAA dedicated channel take, the proprietary signal of complete LAA and/or LAA dedicated channel is transmitted, the proprietary signal of the LAA of service data transmission or predetermined fraction and/or LAA dedicated channel in remaining OFDM symbol in the last OFDM symbol equal with the number of the OFDM symbol that the proprietary signal of LAA and/or LAA dedicated channel take intercepting subframe.
When the data transmission region of intercepting subframe includes non-integral multiple OFDM symbol, the time zone of this non-integral multiple OFDM symbol repeats for the part of first complete OFDM symbol after being transmitted the moment.
In a preferred embodiment, when the data transmitted comprise the synchronizing signal of Long Term Evolution LTE system, utilize intercept transmission that subframe and transmission subframe carry out data in unauthorized carrier wave comprise following one of at least: the synchronizing signal first transmission subframe after unauthorized carrier wave has been detected being transmitted LTE system; With authorize the synchronizing signal transmission subframe of carrier transmission synchronizing channel place subframe alignment being transmitted LTE system; The data transmission region of intercepting subframe is transmitted the synchronizing signal of LTE system.
Wherein, after unauthorized carrier wave has been detected a first transmission subframe transmits the synchronizing signal of LTE system, when transmitting subframe more than the 7th predetermined quantity of the quantity of subframe, transmitting with first the synchronizing signal subframe of subframe at interval of the 8th predetermined quantity being transmitted LTE system.
In a preferred embodiment, above-mentioned transmission subframe is used for downlink data transmission and/or transmitting uplink data.
In a preferred embodiment; when above-mentioned transmission subframe is used for uplink and downlink transfer of data; in transmission frame, special subframe is set, wherein, this special subframe comprise following one of at least: descending pilot frequency time slot, up-downgoing Transition Guard interval, uplink pilot time slot, free time region.
Wherein, when above-mentioned transmission subframe is used for uplink and downlink transfer of data; in transmission frame, special subframe is set; wherein; this intercept subframe can also comprise following one of at least: descending pilot frequency time slot, up-downgoing Transition Guard interval, uplink pilot time slot; free time region, data transmission region.
Intercepting subframe and special subframe duration sum can be a default preset value.
And, the order of above-mentioned transmission frame can comprise one of following: downlink transfer subframe, special subframe, uplink subframe, intercept subframe, wherein this special subframe comprises descending pilot frequency time slot, up-downgoing Transition Guard interval, this is intercepted subframe and comprises free time region, and this special subframe and this duration sum intercepting subframe are the first preset time value; Downlink transfer subframe, special subframe, uplink subframe, intercept subframe, wherein this special subframe comprises descending pilot frequency time slot, up-downgoing Transition Guard interval, this intercept subframe comprise uplink pilot time slot and free time region, this special subframe and this duration sum intercepting subframe are the first preset time value; Downlink transfer subframe, special subframe, uplink subframe, intercept subframe, wherein this special subframe comprises descending pilot frequency time slot, up-downgoing Transition Guard interval, uplink pilot time slot, this is intercepted subframe and comprises free time region, and this special subframe and this duration sum intercepting subframe are the first preset time value; Downlink transfer subframe, special subframe, uplink subframe, intercept subframe, wherein this special subframe comprises descending pilot frequency time slot, up-downgoing Transition Guard interval, uplink pilot time slot, this intercept subframe comprise data transmission region and free time region, this special subframe and this duration sum intercepting subframe are the second preset time value; Intercept subframe, downlink transfer subframe, special subframe, uplink subframe, wherein, this is intercepted subframe and comprises free time region and descending pilot frequency time slot, this special subframe comprises the up-downgoing translation and protection time, and this special subframe and this duration sum intercepting subframe are the first preset time value; Intercept subframe, downlink transfer subframe, special subframe, uplink subframe, wherein, this is intercepted subframe and comprises free time region and descending pilot frequency time slot, and this special subframe comprises up-downgoing translation and protection time and uplink pilot time slot, and this special subframe and this duration sum intercepting subframe are the first preset time value; Intercept subframe, downlink transfer subframe, special subframe, uplink subframe, wherein, this intercept subframe comprise uplink pilot time slot, free time region and descending pilot frequency time slot, this special subframe comprises the up-downgoing translation and protection time, this special subframe and this listen the duration sum of subframe to be the first preset time value; Intercept subframe, downlink transfer subframe, special subframe, uplink subframe, wherein, this is intercepted subframe and comprises free time region and data transmission region, and this special subframe comprises descending pilot frequency time slot, up-downgoing translation and protection time and uplink pilot time slot, and this special subframe and this duration sum intercepting subframe are the second preset time value; Intercept subframe, uplink subframe, special subframe, downlink transfer subframe, wherein, this intercept subframe comprise descending pilot frequency time slot, free time region and uplink pilot time slot, special time slot comprises the up-downgoing translation and protection time, and this special subframe and this duration sum intercepting subframe are the first preset time value; Intercept subframe, uplink subframe, special subframe, downlink transfer subframe, wherein, this is intercepted subframe and comprises free time region and uplink pilot time slot, and special time slot comprises up-downgoing translation and protection time and descending pilot frequency time slot, and this special subframe and this duration sum intercepting subframe are the first preset time value; Intercept subframe; uplink subframe; special subframe; downlink transfer subframe; wherein; this is intercepted subframe and comprises free time region and data transmission region, and special time slot comprises uplink pilot time slot, up-downgoing translation and protection time and descending pilot frequency time slot, and this special subframe and this duration sum intercepting subframe are the second preset time value.
In a preferred embodiment, when above-mentioned transmission subframe is used for uplink and downlink transfer of data, for carrying out the subframe of transmitting uplink data and the subframe for carrying out downlink data transmission one of is at least determined in the following manner: determined by semi-static high-level signaling; Indicated by dynamic signaling; Determined by the mode of scheduling.
Additionally provide a kind of data transmission device in the present embodiment, this device is used for realizing above-described embodiment and preferred implementation, has carried out repeating no more of explanation.As used below, term " module " can realize the software of predetermined function and/or the combination of hardware.Although the device described by following examples preferably realizes with software, hardware, or the realization of the combination of software and hardware also may and conceived.
Fig. 2 is the structured flowchart of the data transmission device according to the embodiment of the present invention, and as shown in Figure 2, this device comprises detection module 22 and transport module 24, is described below to this device.
Whether detection module 22, be in idle condition for detecting unauthorized carrier wave; Transport module 24, is connected to above-mentioned detection module 22, in testing result be unauthorized carrier wave be in idle condition, in this unauthorized carrier wave, carry out the transmission of data.
In embodiments of the present invention, additionally provide the data transmission method of the unauthorized carrier wave of a kind of LAA, the method comprises: intercepting applicable subframe detecting unauthorized carrier wave, and transmission subframe carries out transfer of data.
Further, several intercept subframe and several transmission subframes form a transmission frame, and it is identical with the time span of this transmission subframe that this intercepts subframe.
Further, the length of above-mentioned transmission frame is fixing, or configurable.
Further, when the length of above-mentioned transmission frame is configurable, following configuration mode is included, but are not limited to:
Configuration mode one:
According to the length of high-rise configuration parameter determination transmission frame;
Configuration mode two:
According to the length of country regulation about the control determination transmission frame of unauthorized carrier wave.
Further, when transmission frame has relatively-stationary frame structure, this transmission frame can comprise one or morely intercepts subframe, and this intercepts the position of subframe in transmission frame can be fixing or configuration.This intercepts subframe can be positioned at front P subframe of transmission frame or last Q subframe of transmission frame, and wherein P and Q is the integer being more than or equal to 1.
Further, when comprise in transmission frame multiple intercept subframe time, the detection whether unauthorized carrier wave is in idle condition can be carried out multiple intercepting in subframe successively in base station, when wherein one intercept subframe detects that unauthorized carrier wave is idle condition time, then all after this intercepts subframe intercept subframe and all transmission subframes all for carrying out transfer of data.
Further, intercept subframe can comprise one free time a region and transfer of data time zone, this intercepts subframe also can only comprise free time region.
Further, transmission subframe only can comprise data transmission region, also can comprise a data transmission region and one free time region.
Further, intercept in subframe free time region length be fixing; Or, determine according to the relevant parameter of the transmission frame of configuration; Or the data transmission scenarios according to X subframe is above determined, wherein, X be more than or equal to 1 integer; Or, equal to carry out unauthorized carrier wave and whether be in detection time needed for idle condition.
Further, when the free time zone length intercepting subframe equals to carry out the detection time whether unauthorized carrier wave be in needed for idle condition, transmission subframe comprise data transmission region and free time region, wherein, transmit subframe free time region length determine according to one of following condition: transmission subframe free time region length be fixing length; Transmission subframe free time region length be determine according to the predefined parameter of transmission frame.
Further, when intercept in subframe free time region length determine according to the relevant parameter of transmission frame of configuration time, the relevant parameter of transmission frame of configuration comprises in transmission frame the size allowing the time zone carrying out transfer of data, this free time the length in region can be at least in transmission frame and allow 5% of the time zone carrying out transfer of data.
Further, when intercept in subframe free time region length determine according to the data transmission scenarios of X subframe above time, intercept in subframe free time region length be more than or equal to the length that the detection of channel applicable is carried out in base station.
Further, base station does not send any signal intercepting the free time region in subframe, and at one's leisure between the end in region carry out the detection of channel applicable, when detecting that channel is available, transfer of data is carried out in base station on the data transmission period region of intercepting subframe and transmission subframe, wherein, this transfer of data can be transmitting uplink data also can be downlink data transmission, can also be uplink and downlink transfer of data simultaneously; Otherwise the detection of channel applicable is carried out in intercepting in subframe of next transmission frame in base station.
Further, the data transmission period region of intercepting subframe is for sending following data one of at least: the proprietary signal of LAA, LAA dedicated channel, business datum.
Further, the proprietary signal of LAA includes, but are not limited to: for represent channel occupancy signal, for realizing synchronous signal, reference signal for channel measurement; LAA dedicated channel includes, but are not limited to: for carrying system information channel, for represent channel occupancy channel, for realizing synchronous channel.
Further, the proprietary signal of LAA includes but not limited to one of following:
ZC (Zadoff-Chu) sequence taking resource at equal intervals of channel detection measuring-signal (soundingreferencesignal, referred to as SRS);
Take the ZC sequence of resource continuously, as the main synchronizing sequence of LTE system;
Equally spaced pseudo random sequence, as the public reference signal (CRS) of LTE system, channel state information reference signals (CSI-RS);
Further, LAA dedicated channel can include, but are not limited to one of following:
The broadcast channel of LTE system;
Physical Downlink Shared Channel;
Physical Uplink Shared Channel.
Further, signal/channel that the data transmission period region of intercepting subframe sends was determined according to the time continued in the data transmission period region of intercepting subframe, such as, suppose that the proprietary signal of LAA and/or LAA dedicated channel take N number of symbol, when the duration in the data transmission period region of intercepting subframe is more than or equal to (N+M) individual symbol, intercept the data transmission period region of subframe for sending the proprietary signal of LAA and/or LAA dedicated channel, simultaneously also for sending business datum, otherwise, this data transmission period region of intercepting subframe is for sending the proprietary signal of LAA and/or LAA dedicated channel, or only send business datum, wherein, N, M be more than or equal to 1 integer.
Further, when intercepting the data transmission period region of subframe for sending the proprietary signal of LAA and/or LAA dedicated channel, when also sending business datum, first can send the proprietary signal of LAA and/or LAA dedicated channel, rear transmission business datum simultaneously; Also first can send business datum, the proprietary signal of rear transmission LAA and/or LAA dedicated channel, preferably, last N number of symbol of intercepting subframe send the proprietary signal of LAA and/or LAA dedicated channel.
When above-mentioned transmission frame does not have fixed structure, this transmission frame can comprise one or morely intercepts subframe and one or more transmission subframe;
Further, this number intercepting subframe depends on channel applicable testing result;
Further, the number of this transmission subframe is determined by configuration parameter;
Further, when there being data transfer demands, base station subframe start carry out the detection of channel applicable, this subframe is for intercepting subframe; If when present sub-frame does not meet channel applicable testing requirement, base station proceeds channel applicable in next subframe and detects, until meet the demands.
Further, intercept subframe have at least N number of OFDM symbol being positioned at subframe end be not used in channel applicable detect time, when detecting that the top n OFDM symbol of subframe end does not also meet channel applicable testing requirement, base station is skipped N number of OFDM symbol and is proceeded the detection of channel applicable to next subframe.Wherein, N is the symbolic number that the proprietary signal of LAA and/or LAA dedicated channel take.
Further, after base station completes the detection of channel applicable, base station, comprising to the proprietary signal of LAA and/or the LAA dedicated channel of intercepting integral multiple OFDM symbol number K (K is more than or equal to N) the decision transmission that subframe finish time comprises according to current time:
When K is more than or equal to (N+M) individual symbol, base station sends the proprietary signal of LAA and/or LAA dedicated channel on K symbol, simultaneously also for sending business datum, otherwise, base station sends the proprietary signal of LAA and/or LAA dedicated channel and partly or entirely repeats on K symbol, then starts business data transmission in next subframe; Wherein, N, M be more than or equal to 1 integer.
Or, intercept remaining time in subframe all for sending the proprietary signal of LAA and/or LAA dedicated channel;
Or that intercepts in subframe is remaining all for sending business datum.
Further, when intercept comprise non-integral multiple OFDM symbol the remaining time in subframe time, the time zone of non-integral multiple OFDM symbol repeats for the part of first OFDM symbol after completing the moment described in sending, and now, is equivalent to the Cyclic Prefix extending first OFDM symbol.
Further, all symbols of intercepting subframe may be used to channel applicable and detect, after base station completes the detection of channel applicable, base station, comprising to signal and/or the LAA dedicated channel of intercepting the integral multiple OFDM symbol number K decision transmission that subframe finish time comprises according to current time:
When K is less than N, base station is the proprietary signal of transmitting portion LAA and/or LAA dedicated channel on K symbol, N number of symbol of the beginning of first transmission subframe after intercepting subframe sends the proprietary signal of LAA and/or LAA dedicated channel, and then starts business data transmission; For the time span of non-integral multiple OFDM symbol, repeat for the part of first OFDM symbol after completing the moment described in sending;
When K is more than or equal to N, base station sends the proprietary signal of LAA and/or LAA dedicated channel and partly or entirely repeats on K symbol, and first transmission subframe then after intercepting subframe starts business data transmission; For the time span of non-integral multiple OFDM symbol, repeat for the part of first OFDM symbol after completing the moment described in sending.
When K is more than or equal to N, intercept last N number of symbol of subframe for sending the proprietary signal of complete LAA and/or LAA dedicated channel.
Further, intercept all symbols of subframe and may be used to the detection of channel applicable, after base station completes the detection of channel applicable, base station sends the proprietary signal of LAA that is complete and/or part and/or LAA dedicated channel on the remaining time of intercepting subframe, the N number of symbol of beginning of first transmission subframe after intercepting subframe sends the proprietary signal of LAA and/or LAA dedicated channel, and then starts business data transmission.
Further, when transmission frame needs to send the synchronizing signal of LTE system, base station detecting, first transmission subframe after channel can be used sends the synchronizing signal of LTE system; Or, base station with the transmission subframe of authorizing carrier wave to send synchronizing signal place subframe alignment on send the synchronizing signal of LTE system; Or base station the data transmission period region in subframe sends intercepting the synchronizing signal of LTE system.
Further, when base station detect first after channel can be used transmission subframe sends the synchronizing signal of LTE system time, if channel transmission time is more than Y subframe, then base station is being transmitted in the subframe of subframe at interval of Z subframe sending synchronizing signal with first, wherein, Y, Z are the integer being more than or equal to 1.
Further, transmission subframe only for downlink data transmission, also only for transmitting uplink data, can can also be used for uplink and downlink transfer of data simultaneously.
Wherein, when transmitting subframe and being used for upstream data and downlink data transmission, a special subframe can in this transmission frame, be comprised.
At least can comprise a descending pilot frequency time slot and a up-downgoing Transition Guard interval in this special subframe, a uplink pilot time slot can also be comprised, free time region can also be comprised.
Further, above-mentioned intercept subframe can also comprise following one of at least: descending pilot frequency time slot, up-downgoing Transition Guard interval, uplink pilot time slot, free time region, data transmission region.
Intercepting subframe and special subframe duration sum can be a default preset value.
Further, the order of above-mentioned transmission frame can comprise one of following: downlink transfer subframe, special subframe, uplink subframe, intercept subframe, wherein this special subframe comprises descending pilot frequency time slot, up-downgoing Transition Guard interval, this is intercepted subframe and comprises free time region, and this special subframe and this duration sum intercepting subframe are the first preset time value; Downlink transfer subframe, special subframe, uplink subframe, intercept subframe, wherein this special subframe comprises descending pilot frequency time slot, up-downgoing Transition Guard interval, this intercept subframe comprise uplink pilot time slot and free time region, this special subframe and this duration sum intercepting subframe are the first preset time value; Downlink transfer subframe, special subframe, uplink subframe, intercept subframe, wherein this special subframe comprises descending pilot frequency time slot, up-downgoing Transition Guard interval, uplink pilot time slot, this is intercepted subframe and comprises free time region, and this special subframe and this duration sum intercepting subframe are the first preset time value; Downlink transfer subframe, special subframe, uplink subframe, intercept subframe, wherein this special subframe comprises descending pilot frequency time slot, up-downgoing Transition Guard interval, uplink pilot time slot, this intercept subframe comprise data transmission region and free time region, this special subframe and this duration sum intercepting subframe are the second preset time value; Intercept subframe, downlink transfer subframe, special subframe, uplink subframe, wherein, this is intercepted subframe and comprises free time region and descending pilot frequency time slot, this special subframe comprises the up-downgoing translation and protection time, and this special subframe and this duration sum intercepting subframe are the first preset time value; Intercept subframe, downlink transfer subframe, special subframe, uplink subframe, wherein, this is intercepted subframe and comprises free time region and descending pilot frequency time slot, and this special subframe comprises up-downgoing translation and protection time and uplink pilot time slot, and this special subframe and this duration sum intercepting subframe are the first preset time value; Intercept subframe, downlink transfer subframe, special subframe, uplink subframe, wherein, this intercept subframe comprise uplink pilot time slot, free time region and descending pilot frequency time slot, this special subframe comprises the up-downgoing translation and protection time, this special subframe and this listen the duration sum of subframe to be the first preset time value; Intercept subframe, downlink transfer subframe, special subframe, uplink subframe, wherein, this is intercepted subframe and comprises free time region and data transmission region, and this special subframe comprises descending pilot frequency time slot, up-downgoing translation and protection time and uplink pilot time slot, and this special subframe and this duration sum intercepting subframe are the second preset time value; Intercept subframe, uplink subframe, special subframe, downlink transfer subframe, wherein, this intercept subframe comprise descending pilot frequency time slot, free time region and uplink pilot time slot, special time slot comprises the up-downgoing translation and protection time, and this special subframe and this duration sum intercepting subframe are the first preset time value; Intercept subframe, uplink subframe, special subframe, downlink transfer subframe, wherein, this is intercepted subframe and comprises free time region and uplink pilot time slot, and special time slot comprises up-downgoing translation and protection time and descending pilot frequency time slot, and this special subframe and this duration sum intercepting subframe are the first preset time value; Intercept subframe; uplink subframe; special subframe; downlink transfer subframe; wherein; this is intercepted subframe and comprises free time region and data transmission region, and special time slot comprises uplink pilot time slot, up-downgoing translation and protection time and descending pilot frequency time slot, and this special subframe and this duration sum intercepting subframe are the second preset time value.
Further, when transmitting subframe and being used for uplink and downlink transmission, support the up-downgoing proportioning of existing LTE TDD system, or support new up-downgoing proportioning.
Further, when transmitting subframe and being used for uplink and downlink transmission, the subframe for uplink and the subframe for downlink transfer are determined one of in the following manner:
Mode one:
Determined by semi-static high-level signaling;
Mode two:
Indicated by dynamic signaling;
Mode three:
Determined by the mode of scheduling.
Below in conjunction with specific embodiment, the present invention will be described:
Embodiment 1:
In the countries and regions having control to require to the use of unauthorized carrier wave, channel applicable detection (ClearChannelAssessment must be carried out before the unauthorized carrier wave of use, referred to as CCA), when testing result is in idle condition for this unauthorized carrier wave, this unauthorized carrier wave could be used, if testing result for this unauthorized carrier wave be in busy condition time, then proceed to intercept, or carry out intercepting (said process also can be called LBT:listenbeforetalk) on next transmission frame.
Below for the Europe having control to require to the use of unlicensed spectrum, brief description two kinds of LBT behaviors supporting of European countries once, a kind of is for the equipment (Frame-basedEquipment based on frame, referred to as FBE), another kind is for the equipment (Load-basedEquipment, referred to as LBE) based on load.
Fig. 3 is the LBT schematic diagram of mechanism of the equipment FBE based on frame according to the embodiment of the present invention, as shown in Figure 3, for FBE, have fixing transmission frame-form, Channel holding time and idle period form the fixing frame period, and the phase carries out CCA detection to equipment at one's leisure, when detecting that channel is idle, then can carry out transfer of data immediately, otherwise, carry out CCA detection again in the idle period in next anchor-frame cycle.For the FBE in Europe, Channel holding time is 1 millisecond to 10 milliseconds, and idle period is at least 5% of Channel holding time.Concrete Channel holding time can configure.CCA detects the time continued and is at least 20us, and CCA detects can based on energy measuring, also can based on input.
Fig. 4 is the LBT schematic diagram of mechanism of the equipment LBE based on load according to the embodiment of the present invention, as shown in Figure 4, for LBE, as its name suggests, based on load, when there being data transfer demands, equipment just starts to carry out CCA detection, if after carrying out CCA detection, when finding that channel is idle, then can carry out transfer of data immediately, the maximum time that transfer of data can take is (13/32) × qms, wherein q={4,5,6 ... 31,32} is configurable; Otherwise, enter expansion CCA and detect period, the CCA that namely will carry out X time detects, the value of X is stored in a counter, wherein X value random selecting in 1 to q, each CCA detects (each CCA is identical for detection time) if find that channel is idle, then counter starts to successively decrease, if channel is not idle, then counter does not successively decrease, when counter decrement to 0 time, then can start to carry out transfer of data, data transmission period is determined according to demand, but maximumly can not exceed (13/32) × qms.
Embodiment 2
Fig. 5 is the data transmission structure schematic diagram one according to the embodiment of the present invention, as shown in Figure 5, gives a schematic diagram of the data transmission method of the unauthorized carrier wave of LAA.In this schematic diagram, assuming that LBT adopts the form of FBE, namely transmission frame has relatively-stationary structure, here suppose that transmission frame has fixing length, in this example, the length of transmission frame is 10ms, is equivalent to the length of a radio frames of existing LTE system.
Transmission frame comprises one and intercepts subframe and 9 transmission subframes, and supposition is here intercepted subframe and transmitted the subframe parameter that subframe adopts existing LTE system, comprises the length of OFDM symbol, CP length, subcarrier spacing, subframe lengths etc.Therefore, the temporal duration of a supposition subframe is 1ms here.
Intercept subframe and comprise a clear area and a data transmission region.When the time span of clear area is fixing, as taken 0.5ms (being equivalent to a time slot of LTE system), data transmission region also accounts for 0.5ms, and when adopting the conventional cyclic prefix of LTE system, data transmission region comprises 7 OFDM symbol.When the time span of clear area is 0.5ms, transmission frame is 10ms, and Channel holding time is just 9.5ms, and the time meeting clear area is at least the requirement of 5% of Channel holding time.
In this embodiment, intercept subframe to be positioned in first subframe of transmission frame.
The end of base station in clear area carries out channel applicable detection (CCA detection), and when testing result is busy, base station will intercepting subframe and just can carry out the detection of channel applicable at next transmission frame; When testing result is idle, base station can use this unlicensed spectrum, and on the data transmission period region of intercepting subframe proceed-to-send signal.
For the signal that data transmission period region sends, following situation can be considered:
Only send the proprietary signal/channel of LAA;
Send the proprietary signal of LAA and/or LAA dedicated channel, also send business datum simultaneously;
Send business datum.
Or the time continued according to the data transmission period region of intercepting subframe determines sent signal.
Wherein, signal/channel that LAA is proprietary includes, but are not limited to: for representing the signal/channel of channel occupancy; For realizing synchronous signal/channel; For the reference signal of channel measurement; For the channel of carrying system information.
Supposing that the proprietary signal of LAA and/or LAA dedicated channel take 3 OFDM symbol altogether, is also N=3.
Suppose in this embodiment, data transmission period region comprises 7 OFDM symbol, is also K=7.And the proprietary signal of LAA and/or LAA dedicated channel take 3 OFDM symbol, therefore, when data transmission period region is only for sending the proprietary signal of LAA and/or LAA dedicated channel, the proprietary signal of LAA and/or LAA dedicated channel send in the recurrence of data transmission period Regional Gravity, specifically have again the following two kinds mode:
Mode 1: as shown in Figure 6, Fig. 6 is the schematic diagram one sending signal according to the data transmission period region of the embodiment of the present invention, first three OFDM symbol sends the proprietary signal of complete LAA and/or LAA dedicated channel, rear four OFDM symbol repeat to send the proprietary signal of LAA and/or LAA dedicated channel according to order from left to right, also first three the OFMD symbol namely in rear four OFDM symbol repeats the proprietary signal of complete LAA and/or LAA dedicated channel, last OFDM symbol in rear four OFDM symbol repeats first OFDM symbol of the proprietary signal of LAA and/or LAA dedicated channel,
Mode 2: as shown in Figure 7, Fig. 7 is the schematic diagram two sending signal according to the data transmission period region of the embodiment of the present invention, rear three OFDM symbol send the proprietary signal of complete LAA and/or LAA dedicated channel, front four OFDM symbol repeat to send the proprietary signal of LAA and/or LAA dedicated channel according to order from right to left, also rear three the OFMD symbols namely in front four OFDM symbol repeat the proprietary signal of complete LAA and/or LAA dedicated channel, first OFDM symbol in front four OFDM symbol repeats the 3rd OFDM symbol of the proprietary signal of LAA and/or LAA dedicated channel,
When data transmission period region is for sending the proprietary signal of LAA and/or LAA dedicated channel and business datum, as shown in Figure 8, Fig. 8 is the schematic diagram three sending signal according to the data transmission period region of the embodiment of the present invention, front 3 OFDM symbol in data transmission period region are for sending the proprietary signal of LAA, rear 4 OFDM symbol are for sending business datum, or as shown in Figure 9, Fig. 9 is the schematic diagram four sending signal according to the data transmission period region of the embodiment of the present invention, front 4 OFDM symbol in data transmission period region are for sending business datum, rear 3 OFDM symbol are for sending the proprietary signal of LAA or channel.
When data transmission period region is for sending data, data transmission period region accounts for 7 OFDM symbol in the present embodiment, therefore, when 7 OFDM symbol are for sending data, can with reference to design when DwPTS is 7 OFDM symbol in existing LTE TDD system, as shown in Figure 10, Figure 10 is the schematic diagram five sending signal according to the data transmission period region of the embodiment of the present invention.
When signal/the channel sent when the data transmission period region of intercepting subframe was determined according to the time continued in the data transmission period region of intercepting subframe, in the present embodiment, because data transmission period region accounts for 7 OFDM symbol, K=7, and the proprietary signal of LAA and/or LAA dedicated channel take 3 OFDM symbol, also be N=3, here M=3 is supposed, due to K>M+N, therefore, data transmission period region can send the proprietary signal of LAA and/or LAA dedicated channel and business datum, specifically, front 3 OFDM symbol in data transmission period region are for sending the proprietary signal of LAA, rear 4 OFDM symbol are for sending business datum, or, front 4 OFDM symbol in data transmission period region are for sending business datum, rear 3 OFDM symbol are for sending the proprietary signal of LAA or channel, respectively as shown in Figure 8 and Figure 9.
Above-described embodiment is applicable to the scene that the proprietary signal of LAA and/or LAA dedicated channel must send, in this embodiment, intercept the beginning that subframe is positioned at transmission frame, intercept subframe carry out CCA detection after result, determine current transmission frame whether can use unlicensed spectrum.
Embodiment 3
Figure 11 is the data transmission structure schematic diagram two according to the embodiment of the present invention, and as shown in figure 11, the place that this embodiment is different from embodiment 2 is to intercept last subframe that subframe is positioned at transmission frame.
Intercept subframe and comprise data transmission period region and clear area, wherein clear area is positioned at the end of transmission frame.CCA detection is carried out in the region of free time in base station, and when testing result is idle, then transfer of data can be carried out at next transmission frame in base station, otherwise base station will proceed CCA detection in the clear area of next transmission frame.
Under the transmission frame-form of this enforcement, because data transmission period region is positioned at before clear area, can only be used for sending business datum, thus compare the scene being applicable to not need to send LAA special signal/channel, or LAA special signal/channel is fixed on the scene that first subframe of transmission frame sends.
Embodiment 4
Figure 12 is the data transmission structure schematic diagram three according to the embodiment of the present invention, as shown in figure 12, the place that this embodiment is different from embodiment 3 is to intercept subframe clear area before this, then be data transmission period region, because data transmission region is after clear area, LAA special signal/channel and/or business data transmission, after CCA detection is carried out in clear area, can be carried out in base station in data transmission region.
This embodiment and embodiment 2 are also substantially identical, except transmission frame starting and ending till except difference, the original position that embodiment 4 can be regarded as the transmission frame of embodiment 2 moves a subframe forward.Therefore, about the design of data transmission structure in embodiment 2, applicable equally for embodiment 4, be not repeated here.
Embodiment 5
Figure 13 is the configuration schematic diagram intercepting subframe according to the embodiment of the present invention, as shown in figure 13, suppose to be configured with subframe 0,1,2 as intercepting subframe, then the detection whether unauthorized carrier wave is in idle condition is carried out in base station from subframe 0, if be in idle condition in the end point detection of the clear area of intercepting subframe 0 to unauthorized carrier wave, then can carry out transfer of data from the data transmission region of subframe 0, subframe 1 and subframe 2 no longer as intercepting subframe, and use as transmission subframe.
If base station is in busy state in the clear area end point detection of subframe 0 to unauthorized carrier wave, then proceed from the clear area end of subframe 1 detection whether unauthorized carrier wave is in idle condition, if be in idle condition in the end point detection of the clear area of intercepting subframe 1 to unauthorized carrier wave, then transfer of data can be carried out from the data transmission region of subframe 1, subframe 2 no longer as intercepting subframe, and uses as transmission subframe.
If base station is in busy state in the clear area end point detection of subframe 1 to unauthorized carrier wave, then proceed from the clear area end of subframe 2 detection whether unauthorized carrier wave is in idle condition, if be in idle condition in the end point detection of the clear area of intercepting subframe 2 to unauthorized carrier wave, then transfer of data can be carried out from the data transmission region of subframe 2.
If base station is in busy state in the clear area end point detection of subframe 2 to unauthorized carrier wave, then the clear area of the subframe 0 from next radio frames is proceeded the detection whether unauthorized carrier wave is in idle condition by base station.
Embodiment 6
Figure 14 is the data transmission structure schematic diagram four according to the embodiment of the present invention, as shown in figure 14, gives a schematic diagram of the data transmission method of the unauthorized carrier wave of LAA.In this schematic diagram, assuming that LBT adopts the form of LBE, CCA detection is carried out when there being data transfer demands in base station, suppose to carry out CCA detection on the subframe #1 of radio frames n, channel idle detected, then transfer of data can be carried out in base station at once, supposes that CCA detection finish time also has 12 OFDM symbol (being also K=12) and non-integral multiple OFDM symbol (dash area of subframe #1) to the finish time of subframe #1 here.
For the remaining time of intercepting in subframe, base station can be considered to send following signal/channel:
The proprietary signal of LAA and/or LAA dedicated channel;
The proprietary signal of LAA and/or LAA dedicated channel, send business datum simultaneously;
Business datum.
When intercept the remaining time in subframe send signal be determine according to the length of remaining time time, in the present embodiment, because residue symbol comprises 12 OFDM symbol and non-integral multiple OFDM symbol, suppose that the proprietary signal of LAA and/or LAA dedicated channel take N number of symbol, suppose M=3 simultaneously, due to K> (N+M), thus base station can send signal according to the mode shown in Figure 15 within the remaining time of intercepting subframe, and this Figure 15 remains according to intercepting in subframe of the embodiment of the present invention schematic diagram one that the transmission time sends signal:
First three OFDM symbol is for sending LAA special signal/channel;
9 OFDM symbol are below for sending business datum.
The part of non-integral multiple OFDM symbol, for sending a wherein part for first OFDM symbol in the proprietary signal of LAA and/or LAA dedicated channel, is equivalent to the Cyclic Prefix of first OFDM symbol extended in the proprietary signal of LAA and/or LAA dedicated channel here;
Or send signal according to the method shown in Figure 16, this Figure 16 remains according to intercepting in subframe of the embodiment of the present invention schematic diagram two that the transmission time sends signal:
Front 9 OFDM symbol are for sending business datum;
9 OFDM symbol are below for sending LAA special signal/channel.
The part of non-integral multiple OFDM symbol, for sending a wherein part for first OFDM symbol of business datum, is equivalent to the Cyclic Prefix of first OFDM symbol extending business datum here;
And when intercept the remaining time in subframe only for sending the proprietary signal of LAA and/or LAA dedicated channel time, because the proprietary signal of LAA and/or LAA dedicated channel only account for 3 OFDM symbol, therefore, an integral multiple OFDM symbol in remaining time can repeat to send the proprietary signal of LAA and/or LAA dedicated channel, for the part of non-integral multiple OFDM symbol, repeat the wherein part sending first complete OFDM symbol remaining time, Figure 17 remains according to intercepting in subframe of the embodiment of the present invention schematic diagram three that the transmission time sends signal, in fig. 17, repeat have sent a wherein part for first OFDM symbol in the proprietary signal of LAA and/or LAA dedicated channel.
In Figure 17, because the remaining OFDM symbol number of intercepting in subframe is the integral multiple of symbolic number shared by the proprietary signal of LAA and/or LAA dedicated channel, therefore can the proprietary signal of complete repetition LAA and/or LAA dedicated channel.If when the residue OFDM symbol number of intercepting in subframe is not the integral multiple of symbolic number shared by the proprietary signal of LAA and/or LAA dedicated channel, then the repetition send mode that the proprietary signal of LAA is intercepting the remaining time in subframe can consider two kinds:
Mode 1: Figure 18 remains according to intercepting in subframe of the embodiment of the present invention schematic diagram four that the transmission time sends signal, as shown in figure 18, suppose that the residue OFDM symbol number of intercepting in subframe is 11 and non-integral multiple OFDM symbol, the proprietary signal of LAA and/or LAA dedicated channel is sent in finally N number of (here N=3) OFDM symbol intercepting subframe, then every N number of symbol repeats transmission proprietary signal of LAA and/or LAA dedicated channel forward, for the part of N number of not symbol, send the latter half of the proprietary signal of LAA of brachymemma.
Mode 2: Figure 19 remains according to intercepting in subframe of the embodiment of the present invention schematic diagram five that the transmission time sends signal, as shown in figure 19, suppose that the residue OFDM symbol number of intercepting in subframe is 11 and non-integral multiple OFDM symbol, N number of (here N=3) OFDM symbol started in first the integral multiple OFDM symbol intercepting subframe sends the proprietary signal of LAA and/or LAA dedicated channel, then every N number of symbol repeats transmission proprietary signal of LAA and/or LAA dedicated channel backward, for the part of N number of not symbol, send the first half of the proprietary signal of LAA of brachymemma.
And when intercept the remaining time in subframe for sending data time, 12 OFDM symbol are used for transfer of data, as shown in figure 20, this Figure 20 remains according to intercepting in subframe of the embodiment of the present invention schematic diagram six that the transmission time sends signal to a wherein part for first OFDM symbol of the partial service data of non-integral multiple OFDM symbol.
Embodiment 7
As shown in figure 14, in this schematic diagram, assuming that LBT adopts the form of LBE, CCA detection is carried out when there being data transfer demands in base station, suppose to carry out CCA detection on the subframe #2 of radio frames n+1, channel busy (busy) detected, then base station enters expansion CCA process, obtain random number X=5, then base station is after detecting that the testing result of 5 CCA is all channel idle (the CCA testing result of shade is channel busy), enter data transfer phase, here suppose that CCA detection finish time also has 5 OFDM symbol and non-integral multiple OFDM symbol (dash area of subframe #2) to the finish time of radio frames subframe #2.
When intercept the remaining time in subframe send signal be determine according to the length of remaining time time, in the present embodiment, because residue symbol comprises 5 OFDM symbol and non-integral multiple OFDM symbol, suppose M=3, do not meet K> (N+M), thus the residue symbol that subframe is being intercepted in base station sends the proprietary signal of LAA and/or LAA dedicated channel and repetition thereof, as shown in figure 21, Figure 21 remains according to intercepting in subframe of the embodiment of the present invention schematic diagram seven that the transmission time sends signal: the part of non-integral multiple OFDM symbol repeats have sent a wherein part for first OFDM symbol in the proprietary signal of LAA and/or LAA dedicated channel above, first three OFDM symbol sends the proprietary signal of LAA and/or LAA dedicated channel, latter two symbol repeats the first two symbol sending the proprietary signal of LAA and/or LAA dedicated channel.
Or adopt mode as shown in figure 22, Figure 22 remains according to intercepting in subframe of the embodiment of the present invention schematic diagram eight that the transmission time sends signal:
The proprietary signal of LAA and/or LAA dedicated channel is sent in finally N number of (here N=3) OFDM symbol intercepting subframe, then every N number of symbol repeats transmission proprietary signal of LAA and/or LAA dedicated channel forward, for the part of N number of not symbol, send the latter half of the proprietary signal of LAA of brachymemma.
Embodiment 8
Figure 23 is the data transmission structure schematic diagram five according to the embodiment of the present invention, as shown in figure 23, it gives another schematic diagram of the data transmission method of the unauthorized carrier wave of LAA.In this schematic diagram, assuming that LBT adopts the form of LBE, CCA detection is carried out when there being data transfer demands in base station, supposes to carry out CCA detection on the subframe #2 of radio frames n, channel busy detected, then base station enters expansion CCA process, obtains random number X=9.Before supposing to detect last 3 symbols of subframe #2, (supposing N=3 here) does not still meet requirement of expansion CCA, this hour counter X=2 is also less than X=0, at this time, last 3 OFDM symbol of subframe #2 will be skipped in base station, subframe #3 start proceed expansion CCA detect, until counter X reduces to 0.After X reduces to 0, base station can start to carry out transfer of data, and the transmission of base station on subframe #3 can reference example 6, is not repeated here.
After this mode can ensure that CCA or expansion CCA detects, intercept in subframe and can distribute the proprietary signal of whole LAA and/or LAA dedicated channel, so transmit subframe just not need to vacate symbol to send the proprietary signal of LAA and/or LAA dedicated channel, as long as normal data burst, do not need to consider extra design.This Method compare is applicable to the proprietary signal of LAA and/or LAA dedicated channel is necessary scene.
Embodiment 9
Figure 24 is another schematic diagram of the data transmission method giving the unauthorized carrier wave of LAA according to the data transmission structure schematic diagram six, Figure 24 of the embodiment of the present invention.In this schematic diagram, assuming that LBT adopts the form of LBE, CCA detection is carried out when there being data transfer demands in base station, supposes to carry out CCA detection on the subframe #2 of radio frames n, channel busy detected, then base station enters expansion CCA process, obtains random number X=9.All symbols of supposing to intercept subframe #2 may be used to CCA and detect with expansion CCA, and so base station is after completing expansion CCA detection, intercepts frame #2 and is only left 1 OFDM symbol.
Intercepting subframe completes after expansion CCA detects, base station according to current time to the signal/channel of intercepting an integral multiple OFDM symbol number K that subframe finish time comprises and determine transmission, concrete:
When K is less than N, base station is the proprietary signal of transmitting portion LAA and/or LAA dedicated channel on K symbol, and the N number of symbol of beginning of first transmission subframe after intercepting subframe sends the proprietary signal of LAA and/or LAA dedicated channel, and then starts business data transmission; For the time span of non-integral multiple OFDM symbol, repeat for the part sending the proprietary signal of LAA and/or LAA dedicated channel;
When K is more than or equal to N, base station sends the proprietary signal of LAA and/or LAA dedicated channel and partly or entirely repeats on K symbol, and first transmission subframe then after intercepting subframe starts business data transmission; For the time span of non-integral multiple OFDM symbol, repeat for the part sending the proprietary signal of LAA and/or LAA dedicated channel.
In fig. 24, owing to intercepting subframe only remaining 1 OFDM symbol, the namely situation of K<N, therefore, base station intercepting, remaining 1 OFDM symbol of subframe sends the previous symbol of the proprietary signal of LAA and/or LAA dedicated channel, front 3 OFDM symbol of first subframe then after intercepting subframe send the proprietary signal of LAA and/or LAA dedicated channel, and then starts business data transmission.
It should be noted that, for the wherein part intercepting in subframe the proprietary signal of LAA and/or the LAA dedicated channel repeating to send, it can be the previous section of the proprietary signal of LAA and/or LAA dedicated channel, also can be the aft section of the proprietary signal of LAA and/or LAA dedicated channel, in fig 23 to repeat the previous section of the proprietary signal of LAA and/or LAA dedicated channel.This principle, in every other embodiment of the present invention, the part that the proprietary signal of LAA and/or LAA dedicated channel repeat to send is applicable all equally.
Embodiment 10
Figure 25 is the data transmission structure schematic diagram seven according to the embodiment of the present invention, Figure 25 provides another one embodiment, substantially similar with embodiment 9, different places is according to expansion CCA testing requirement, after completing expansion CCA detection, remain 4 OFDM symbol, due to K>N (4>3), therefore, base station sends the proprietary signal of LAA and/or LAA dedicated channel intercepting in remaining 4 OFDM symbol of subframe, wherein also be repeated first OFDM symbol of the proprietary signal of LAA and/or LAA dedicated channel, then first transmission subframe after intercepting subframe starts business data transmission.
Or, as shown in figure 26, Figure 26 is the data transmission structure schematic diagram eight according to the embodiment of the present invention, sends the proprietary signal of LAA and/or LAA dedicated channel at the last N number of symbol of subframe subframe, before symbol repeat the 3rd symbol of the proprietary signal of LAA and/or LAA dedicated channel.
Embodiment 11
Figure 27 is another schematic diagram of the data transmission method giving the unauthorized carrier wave of LAA according to the data transmission structure schematic diagram nine, Figure 27 of the embodiment of the present invention.In this schematic diagram, assuming that LBT adopts the form of LBE, CCA detection is carried out when there being data transfer demands in base station, supposes to carry out CCA detection on the subframe #2 of radio frames n, channel busy detected, then base station enters expansion CCA process, obtains random number X=6.All symbols of supposing to intercept subframe #2 may be used to CCA and expansion CCA detection, so base station is after completing expansion CCA detection, intercept frame #2 and be only left 4 OFDM symbol, base station sends the proprietary signal of LAA that is complete and/or part and/or LAA dedicated channel on the remaining time of intercepting subframe, front 3 symbols of first transmission subframe after intercepting subframe send the proprietary signal of LAA and/or LAA dedicated channel, and then start business data transmission.
In this embodiment, the proprietary signal of complete LAA and/or LAA dedicated channel after intercepting subframe first transmission subframe must send, and then according to intercept in subframe complete expansion CCA detect after on the remaining time complete or part repeat to send the proprietary signal of LAA and/or LAA dedicated channel.The proprietary signal of LAA and/or LAA dedicated channel are repeated to the part sent, follow the repetition principle mentioned in embodiment 9 equally, be not repeated here.
Embodiment 12
Synchronizing signal is used for the synchronous of achieve frame, obtains community ID, and carries out thick frequency offset correction.For unauthorized carrier wave, the necessary synchronizing signal that sends whether is wanted finally not decide at present.In the present embodiment, suppose unauthorized carrier wave to need send synchronizing signal, then the transmission of synchronizing signal has following several alternative means:
(1) base station is detecting the synchronizing signal first after channel can be used transmission subframe sending LTE system, and as shown in figure 28, Figure 28 is the schematic diagram one sent according to synchronizing signal on the unauthorized carrier wave of the LAA of the embodiment of the present invention.
(2) base station with the transmission subframe of authorizing carrier wave to send synchronizing signal place subframe alignment on send the synchronizing signal of LTE system, as shown in figure 29, Figure 29 is the schematic diagram two according to synchronizing signal transmission on the unauthorized carrier wave of the LAA of the embodiment of the present invention.
(3) synchronizing signal data transmission period region in subframe sending LTE system is being intercepted in base station, and as shown in figure 30, Figure 30 is the schematic diagram three sent according to synchronizing signal on the unauthorized carrier wave of the LAA of the embodiment of the present invention.
Although it should be noted that in the schematic diagram of Figure 28-30, what provide is the transmission schematic diagram of the synchronizing signal of transmission frame based on FBE, applicable equally for LBE.
In addition, when adopting above-mentioned mode (1) to send for synchronizing signal, if channel transmission time is more than Y subframe, then base station is being transmitted in the subframe of subframe at interval of Z subframe sending synchronizing signal with first.Here suppose that Y is 5, Z also equals 5, so as shown in figure 31, Figure 31 is the schematic diagram four sent according to synchronizing signal on the unauthorized carrier wave of the LAA of the embodiment of the present invention, length due to transmission frame is 10ms, and channel transmission time has exceeded 5 subframes, thus, base station will transmitted in the subframe of subframe at interval of 5 subframes and sending synchronizing signal with first, and namely base station (by shadow representation in figure) can send synchronizing signal in subframe 6.
Further, the subframe sending synchronizing signal can also send broadcast channel.
When base station detect first after channel can be used transmission subframe sends synchronizing signal and the broadcast channel of LTE system time, one of mode as shown in Figure 32 ~ Figure 34 can be considered in the synchronizing signal of LTE system and the broadcast channel position in subframe:
Mode 1: as shown in figure 32, Figure 32 is the schematic diagram one according to the position of synchronizing signal in subframe when the unauthorized carrier wave of the LAA of the embodiment of the present invention sending synchronizing signal, send master sync signal and auxiliary synchronous signals at latter two symbol of first time slot of first transmission subframe, send broadcast channel at front four symbols of second time slot.
Mode 2: as shown in figure 33, Figure 33 is the schematic diagram two according to the position of synchronizing signal in subframe when the unauthorized carrier wave of the LAA of the embodiment of the present invention sending synchronizing signal, master sync signal and auxiliary synchronous signals is sent at two, the centre symbol of first time slot of first transmission subframe, broadcast channel is sent at front four symbols of second time slot, middle two symbols specifically, for conventional cyclic prefix, middle two symbols refer to third and fourth symbol in subframe, or the 4th and the 5th symbol, for extended cyclic prefix, middle two symbols refer to third and fourth symbol in subframe,
Mode 3: as shown in figure 34, Figure 34 is the schematic diagram three according to the position of synchronizing signal in subframe when the unauthorized carrier wave of the LAA of the embodiment of the present invention sending synchronizing signal, the first two symbol of first time slot of first transmission subframe sends master sync signal and auxiliary synchronous signals, continuous four symbols of the 3rd sign-on send broadcast channel.
Further, send two OFDM symbol of synchronizing signal, first can send master sync signal, rear transmission auxiliary synchronous signals, also first can send auxiliary synchronous signals, rear transmission master sync signal.
When base station with the transmission subframe of authorizing carrier wave to send synchronizing signal place subframe alignment on send the synchronizing signal of LTE system, the synchronizing signal of the LTE system position in subframe is identical with LTE system.
Embodiment 13
When the transmission subframe in transmission frame is all for downlink transfer, for the transmission frame of FBE, all transmission subframes in transmission frame are not must be used for carrying out transfer of data, and when not having data transfer demands, the subframe in transmission frame can not send anything.But when again there being data transfer demands, base station needs the subframe of intercepting in transmission frame to carry out CCA detection.Figure 35 is for the data transmission structure schematic diagram one during downstream transmission according to the LAA unlicensed spectrum of the embodiment of the present invention, transmission subframe is given only for an example of downlink transfer in Figure 35, in this example embodiment, all transmission subframes are all for carrying out downlink transfer, and the data transmission period region of intercepting in subframe also may be used for carrying out downlink data transmission.
Embodiment 14
When the transmission subframe in transmission frame is used for uplink and downlink transfer, transmission frame comprises a special subframe, this special subframe at least comprise following one of at least: descending pilot frequency time slot, up-downgoing translation and protection time, uplink pilot time slot.
When the transmission subframe in transmission frame is used for uplink and downlink transfer, transmission frame also comprises one and intercepts subframe, intercept subframe comprise following one of at least:
Descending pilot frequency time slot, up-downgoing protection interval, uplink pilot time slot, free time region, data transmission region.
Wherein, intercepting the time sum that subframe and special subframe continue is preset value.
Intercept subframe, special subframe and downlink transfer subframe, can there be various ways the position of uplink subframe in a transmission frame, specifically include, but are not limited to following one of at least:
Downlink transfer subframe, special subframe, uplink subframe, intercept subframe; wherein special subframe comprises descending pilot frequency time slot, up-downgoing Transition Guard interval; intercept subframe and comprise free time region; special subframe and the duration sum intercepting subframe are the first preset time value; as shown in figure 36; Figure 36 is for the data transmission structure schematic diagram two during downstream transmission according to the LAA unlicensed spectrum of the embodiment of the present invention; first preset time value is the time that 1 subframe continues, and is also 1ms.
Downlink transfer subframe, special subframe, uplink subframe, intercept subframe; wherein special subframe comprises descending pilot frequency time slot, up-downgoing Transition Guard interval; intercept subframe comprise uplink pilot time slot and free time region; special subframe and the duration sum intercepting subframe are the first preset time value; as shown in figure 37; Figure 37 is for the data transmission structure schematic diagram three during downstream transmission according to the LAA unlicensed spectrum of the embodiment of the present invention; first preset time value is the time that 1 subframe continues, and is also 1ms.
Downlink transfer subframe, special subframe, uplink subframe, intercept subframe; wherein special subframe comprises descending pilot frequency time slot, up-downgoing Transition Guard interval, uplink pilot time slot; intercept subframe and comprise free time region; special subframe and the duration sum intercepting subframe are the first preset time value; as shown in figure 38; Figure 38 is for the data transmission structure schematic diagram four during downstream transmission according to the LAA unlicensed spectrum of the embodiment of the present invention; first preset time value is the time that 1 subframe continues, and is also 1ms.
Downlink transfer subframe, special subframe, uplink subframe, intercept subframe; wherein special subframe comprises descending pilot frequency time slot, up-downgoing Transition Guard interval, uplink pilot time slot; intercept subframe comprise data transmission region and free time region; special subframe and the duration sum intercepting subframe are the second preset time value; as shown in figure 39; Figure 39 is for the data transmission structure schematic diagram five during downstream transmission according to the LAA unlicensed spectrum of the embodiment of the present invention; first preset time value is the time that 2 subframes continue, and is also 2ms.
Intercept subframe, downlink transfer subframe, special subframe, uplink subframe, wherein, intercepts subframe and comprises free time region and descending pilot frequency time slot, special subframe comprises the up-downgoing translation and protection time, and special subframe and the duration sum intercepting subframe are the first preset time value; As shown in figure 40, Figure 40 is the time that 1 subframe continues according to the LAA unlicensed spectrum of the embodiment of the present invention for data transmission structure schematic diagram six, first preset time value during downstream transmission, also i.e. 1ms.
Intercept subframe, downlink transfer subframe, special subframe, uplink subframe, wherein, intercept subframe and comprise free time region and descending pilot frequency time slot, special subframe comprises up-downgoing translation and protection time and uplink pilot time slot, and special subframe and the duration sum intercepting subframe are the first preset time value; As shown in figure 41, Figure 41 is the time that 1 subframe continues according to the LAA unlicensed spectrum of the embodiment of the present invention for data transmission structure schematic diagram seven, first preset time value during downstream transmission, also i.e. 2ms.
Intercept subframe, downlink transfer subframe, special subframe, uplink subframe, wherein, intercept subframe comprise uplink pilot time slot, free time region and descending pilot frequency time slot, special subframe comprises the up-downgoing translation and protection time, and special subframe and the duration sum intercepting subframe are the first preset time value; As shown in figure 42, Figure 42 is the time that 1 subframe continues according to the LAA unlicensed spectrum of the embodiment of the present invention for data transmission structure schematic diagram eight, first preset time value during downstream transmission, also i.e. 1ms.
Intercept subframe, downlink transfer subframe, special subframe, uplink subframe, wherein, intercept subframe and comprise free time region and data transmission region, special subframe comprises descending pilot frequency time slot, up-downgoing translation and protection time and uplink pilot time slot, and special subframe and the duration sum intercepting subframe are the second preset time value; As shown in figure 43, Figure 43 is the time that 2 subframes continue according to the LAA unlicensed spectrum of the embodiment of the present invention for data transmission structure schematic diagram nine, first preset time value during downstream transmission, also i.e. 2ms.
Intercept subframe; uplink subframe; special subframe; downlink transfer subframe; wherein; intercept subframe and comprise free time region and uplink pilot time slot; special time slot comprise the up-downgoing translation and protection time and descending pilot frequency time slot; special subframe and the duration sum intercepting subframe are the first preset time value; as shown in figure 44; Figure 44 is the time that 1 subframe continues according to the LAA unlicensed spectrum of the embodiment of the present invention for data transmission structure schematic diagram ten, first preset time value during downstream transmission, also i.e. 1ms.
Intercept subframe; uplink subframe; special subframe; downlink transfer subframe; wherein; intercept subframe comprise descending pilot frequency time slot, free time region and uplink pilot time slot; special time slot comprises the up-downgoing translation and protection time; special subframe and the duration sum intercepting subframe are the first preset time value; as shown in figure 45; Figure 45 is the time that 1 subframe continues according to the LAA unlicensed spectrum of the embodiment of the present invention for data transmission structure schematic diagram 11, first preset time value during downstream transmission, also i.e. 1ms.
Intercept subframe; uplink subframe; special subframe; downlink transfer subframe; wherein; intercept subframe and comprise free time region and data transmission region; special time slot comprises uplink pilot time slot, up-downgoing translation and protection time and descending pilot frequency time slot; special subframe and the duration sum intercepting subframe are the second preset time value; as shown in figure 46; Figure 46 is the time that 2 subframes continue according to the LAA unlicensed spectrum of the embodiment of the present invention for data transmission structure schematic diagram 12, first preset time value during downstream transmission, also i.e. 2ms.
When the time that special subframe is lasting with intercepting subframe is 2 subframes, the descending pilot frequency time slot in special subframe, the design of uplink pilot time slot can reuse the design of existing LTE TDD system, intercepts the design that can adopt above-described embodiment of subframe; And when the time that special subframe is lasting with intercepting subframe is 1 subframe, special subframe or the uplink pilot time slot of intercepting in subframe, the design of descending pilot frequency time slot can reuse the design of existing LTE TDD system, also can redesign, and the design intercepting subframe can with reference to the design of above-described embodiment.
Embodiment 15
Figure 47 is the data transmission structure schematic diagram ten according to the embodiment of the present invention, as shown in figure 47, in this embodiment, the detection whether unauthorized carrier wave is in idle condition transmission frame start carry out, and intercept free time in subframe region equal to carry out unauthorized carrier wave whether be in idle condition detect needed for time, when complete unauthorized carrier wave whether be in idle condition detect after, start immediately to carry out transfer of data, for the transfer of data intercepted in subframe, the method of embodiment above can be adopted, be not repeated here.
In this embodiment, last transmission subframe of transmission frame comprises a data transmission region, and one free time region, the wherein transfer of data of data transmission region, can with reference to the design of the descending pilot frequency time slot of LTE TDD system, also can consider new design, and free time region length, then can be fixing; Or determine according to the predefined parameter of transmission frame, to ensure here in the end one transmission subframe in free time region and intercept in subframe free time region time sum be not less than for the total time of transfer of data in transmission frame 5%.
Embodiment 16
When transmitting subframe and being used for uplink and downlink transmission, support the up-downgoing proportioning of existing LTE TDD system, or support new up-downgoing proportioning.
When transmitting subframe and being used for uplink and downlink transmission, the subframe for uplink and the subframe for downlink transfer are determined one of in the following manner:
Mode 1: determined by semi-static high-level signaling, as determined in transmission frame for uplink and the subframe ratio for downlink transfer by system information block 1 (SIB-1).
Mode 2: indicated by dynamic signaling, as dynamically indicated by the Downlink Control Information (DCI) be carried in down control channel (PDCCH).
Mode 3: by scheduling mode determine, namely when have to transmission subframe carry out the Downlink Control Information of descending distribution time, transmission subframe be used for downlink transfer; When have to transmission subframe carry out the Downlink Control Information of uplink scheduling time, transmission subframe be used for uplink.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (32)

1. a data transmission method, is characterized in that, comprising:
Detect unauthorized carrier wave and whether be in idle condition;
When testing result be described unauthorized carrier wave be in idle condition, in described unauthorized carrier wave, carry out transfer of data.
2. method according to claim 1, is characterized in that, detects described unauthorized carrier wave and whether is in idle condition and comprises:
The free time of the intercepting subframe unauthorized carrier wave described in region detection in transmission frame is utilized whether to be in idle condition, wherein, described transmission frame comprises intercepts subframe and transmission subframe, the described number intercepting subframe and described transmission subframe is one or more, described in intercept subframe and comprise one of following:
Free time region;
Free time region and data transmission region;
Described transmission subframe comprise following one of at least:
Data transmission region;
Data transmission region and free time region.
3. method according to claim 2, is characterized in that, carries out transfer of data and comprise in described unauthorized carrier wave:
Data transmission region and the described transmission subframe of intercepting subframe described in utilization carry out transfer of data in described unauthorized carrier wave.
4. method according to claim 2, is characterized in that, the length of described transmission frame is fixing or is configured according to predetermined rule, wherein, according to transmission frame described in predetermined rule configuration comprise following one of at least:
The length of described transmission frame is configured according to high-rise configuration parameter;
Configure the length of described transmission frame about the control of unauthorized carrier wave according to country regulation.
5. method according to claim 4, is characterized in that, described in intercept the position of subframe in described transmission frame be fixing or configuration.
6. method according to claim 5, it is characterized in that, when described to intercept the position of subframe in described transmission frame be fixing time, describedly to intercept in subframe that subframe is positioned at the first predetermined quantity of the front end of described transmission frame or in the subframe of the second predetermined quantity of described transmission frame end, wherein, the first described predetermined quantity and described second predetermined quantity are fixing or configuration.
7. method according to claim 6, it is characterized in that, detect described unauthorized carrier wave whether to be in idle condition and to comprise: intercept described in multiple successively and subframe detects described unauthorized carrier wave whether be in idle condition, when wherein one intercept subframe detects that described unauthorized carrier wave is idle condition time, then all after this intercepts subframe intercept subframe and all transmission subframes all for carrying out transfer of data.
8. method according to claim 2, is characterized in that, described in intercept subframe free time region length determine according to one of following condition:
Described intercept subframe free time region length be fixing length;
Described intercept subframe free time region length be determine according to the predefined parameter of described transmission frame;
Described intercept subframe free time region length for according to described in intercept that the data transmission scenarios of the subframe of the 3rd predetermined quantity before subframe determines;
Described intercept subframe free time region length whether be in time needed for idle condition for detecting described unauthorized carrier wave.
9. method according to claim 8, it is characterized in that, when described intercept subframe free time region length whether be in the time needed for idle condition for detecting described unauthorized carrier wave time, described transmission subframe free time region length determine according to one of following condition:
Described transmission subframe free time region length be fixing length;
Described transmission subframe free time region length be determine according to the predefined parameter of described transmission frame.
10. method according to claim 8 or claim 9, it is characterized in that, the predefined parameter of described transmission frame comprises: the length of carrying out the time zone of transfer of data in described transmission frame.
11. methods according to claim 8, is characterized in that, whether free time unauthorized carrier wave described in region detection of intercepting described in utilization in subframe is in idle condition comprises:
When the described length intercepting the region of free time in subframe be fixing or for determining according to the predefined parameter of described transmission frame time, described intercept subframe free time region end point detection described in unauthorized carrier wave whether be in idle condition, wherein, after determining that described unauthorized carrier wave is in idle condition, transfer of data is carried out in described data transmission period region of intercepting subframe.
12. methods according to claim 11, is characterized in that, described data comprise following one of at least:
Authorize the proprietary signal of photocarrier method access LAA, LAA dedicated channel, business datum, wherein, the proprietary signal of described LAA comprise following one of at least: for represent channel occupancy signal, for realizing synchronous signal, reference signal for channel measurement, described LAA dedicated channel comprises: for representing the channel of channel occupancy and/or the channel for carrying system message.
13. methods according to claim 11, is characterized in that, described data transmission period region of intercepting subframe is carried out transfer of data comprise following one of at least:
On described data transmission period region of intercepting subframe, following data are transmitted one of at least: the proprietary signal of described LAA, described LAA dedicated channel, described business datum according to the described length intercepting the data transmission period region of subframe;
Described data transmission period region of intercepting subframe is transmitted the proprietary signal of described LAA and/or described LAA dedicated channel.
14. methods according to claim 13, is characterized in that, carry out transfer of data comprise according to the described length intercepting the data transmission period region of subframe on described data transmission period region of intercepting subframe:
When the orthogonal frequency division multiplex OFDM symbol of large 4th predetermined quantity of the length that the described length intercepting the data transmission period region of subframe takies than the proprietary signal of described LAA and/or LAA dedicated channel, described data transmission period region of intercepting subframe is transmitted the proprietary signal of described LAA and/or described LAA dedicated channel, also transmits described business datum simultaneously; Otherwise, the proprietary signal of described LAA and/or LAA dedicated channel are transmitted in described data transmission period region of intercepting subframe, or transmit described business datum.
15. methods according to claim 2, it is characterized in that, intercept described in determining according to the result whether being in the detection of idle condition to described unauthorized carrier wave subframe number and described in intercept the time span of the transfer of data in subframe, and/or, the number of described transmission subframe is determined according to predetermined configurations parameter.
16. methods according to claim 15, it is characterized in that, when there being business to transmit demand, subframe start carry out the detection whether described unauthorized carrier wave is in idle condition, described subframe, for intercepting subframe, if intercept subframe described in current to carry out testing result that whether described unauthorized carrier wave be in idle condition when not meeting pre-conditioned, then proceeds described detection in next subframe, described next subframe also for intercepting subframe, until meet described pre-conditioned.
17. methods according to claim 16, is characterized in that, described intercept subframe detect described unauthorized carrier wave whether be in idle condition comprise following one of at least:
When described intercept in the end of subframe have at least the OFDM symbol of the 5th predetermined quantity be not useable for detect described unauthorized carrier wave whether be in idle condition time, whether the described unauthorized carrier wave of OFDM symbol detection of intercepting subframe described in utilization remaining except the OFDM symbol of described 5th predetermined quantity of end is in idle condition, and testing result do not meet described pre-conditioned time, the next one of intercepting subframe described in skipping to is intercepted in subframe and is detected described unauthorized carrier wave, wherein, the length of the OFDM symbol of described 5th predetermined quantity is at least the length that the proprietary signal of described LAA and/or described LAA dedicated channel take,
When the described all OFDM symbol intercepting subframe all support whether detect described unauthorized carrier wave is in idle condition, intercept subframe described in utilization and whether idle condition is in described unauthorized carrier wave detects.
18. methods according to claim 17, it is characterized in that, when described intercept the end of subframe have at least the OFDM symbol of the 5th predetermined quantity be not useable for detecting described unauthorized carrier wave whether be in idle condition, complete described detection complete the moment to described time zone of intercepting subframe finish time carries out transfer of data comprise following one of at least:
According to described complete the moment to described in intercept the OFDM symbol that subframe finish time comprises number carry out transfer of data, wherein, described data comprise following one of at least: authorize the proprietary signal of photocarrier method access LAA, LAA dedicated channel, business datum;
Described complete the moment to described in intercept subframe finish time and send the proprietary signal of described LAA and/or LAA dedicated channel.
19. methods according to claim 18, is characterized in that, according to described complete the moment to described in intercept the OFDM symbol that subframe finish time comprises number carry out transfer of data comprise following one of at least:
When described complete the moment to described in intercept the OFDM symbol that subframe finish time comprises the OFDM symbol of length large 6th predetermined quantity that takies than the proprietary signal of described LAA and/or described LAA dedicated channel of length time, the described OFDM symbol comprised is transmitted the proprietary signal of described LAA and/or LAA dedicated channel, simultaneously also transmit described business datum, described intercept subframe after first subframe upload defeated business datum;
When described complete the moment to described in intercept the OFDM symbol that subframe finish time comprises the length that takies than the proprietary signal of described LAA and/or LAA dedicated channel of length large and, when the OFDM symbol sum of the length taken than the proprietary signal of described LAA and/or described LAA dedicated channel and described 6th predetermined quantity is little, the described OFDM symbol comprised is transmitted the proprietary signal of described LAA and/or described LAA dedicated channel, described intercept subframe after first subframe upload defeated business datum.
20. methods according to claim 17, it is characterized in that, when the described all OFDM symbol intercepting subframe all support whether detect described unauthorized carrier wave is in idle condition, after completing whether the detection of idle condition be in described unauthorized carrier wave, also comprise following one of at least:
According to described unauthorized carrier wave has been detected complete the moment to described in intercept subframe finish time time zone carry out the transmission of data, wherein, described complete the moment to described in intercept subframe finish time time zone comprise described in intercept the data transmission period region of subframe, described data comprise following one of at least: authorize the proprietary signal of photocarrier method access LAA, LAA dedicated channel, business datum;
The OFDM symbol that described data transmission period region of intercepting subframe comprises transmits the proprietary signal of described LAA of predetermined portions and/or described LAA dedicated channel, described intercept subframe after first subframe transfer the whole proprietary signal of described LAA and/or described LAA dedicated channel, transmit described business datum afterwards.
21. methods according to claim 20, is characterized in that, also comprise following one of at least:
During the OFDM symbol of large 6th predetermined quantity of the length that the length of the described OFDM symbol comprised when described data transmission period region of intercepting subframe takies than the proprietary signal of described LAA and/or described LAA dedicated channel, the described OFDM symbol comprised is transmitted the proprietary signal of described LAA and/or LAA dedicated channel, simultaneously also transmit described business datum, described intercept subframe after first subframe upload defeated business datum;
The length that the length of the described OFDM symbol comprised when described data transmission period region of intercepting subframe takies than the proprietary signal of described LAA and/or described LAA dedicated channel large and, when the OFDM symbol sum of the length taken than the proprietary signal of described LAA and/or described LAA dedicated channel and described 6th predetermined quantity is little, the described OFDM symbol comprised is transmitted the proprietary signal of described LAA and/or described LAA dedicated channel, described intercept subframe after first subframe upload defeated business datum;
When the number of the described OFDM symbol comprised when described data transmission period region of intercepting subframe is less than the number of the OFDM symbol that the proprietary signal of described LAA and/or described LAA dedicated channel take, the described OFDM symbol comprised is transmitted the proprietary signal of described LAA of predetermined portions and/or described LAA dedicated channel, described intercept subframe after first subframe transfer the whole proprietary signal of described LAA and/or described LAA dedicated channel, transmit described business datum afterwards.
22. methods as described in claim 14 or 19 or 21, it is characterized in that, when the number of the described OFDM symbol comprised when described data transmission region of intercepting subframe is more than or equal to the number of the OFDM symbol that the proprietary signal of described LAA and/or described LAA dedicated channel take, the complete proprietary signal of described LAA and/or described LAA dedicated channel is transmitted described intercepting in the last OFDM symbol equal with the number of the OFDM symbol that the proprietary signal of described LAA and/or described LAA dedicated channel take of subframe, the proprietary signal of described LAA of described business datum or predetermined fraction and/or described LAA dedicated channel is transmitted in remaining OFDM symbol.
23. methods according to claim 18 or 20, it is characterized in that, when described data transmission region of intercepting subframe includes non-integral multiple OFDM symbol, the time zone of described non-integral multiple OFDM symbol repeats for the part of first complete OFDM symbol after completing the moment described in transmitting.
24. methods according to claim 2, it is characterized in that, when the described data transmitted comprise the synchronizing signal of Long Term Evolution LTE system, intercept described in utilization transmission that subframe and described transmission subframe carry out data in described unauthorized carrier wave comprise following one of at least:
First transmission subframe after described unauthorized carrier wave has been detected is transmitted the synchronizing signal of described LTE system;
With authorize the synchronizing signal transmission subframe of carrier transmission synchronizing channel place subframe alignment being transmitted described LTE system;
Described data transmission region of intercepting subframe is transmitted the synchronizing signal of described LTE system.
25. methods according to claim 24, first transmission subframe after described unauthorized carrier wave has been detected transmits the synchronizing signal of described LTE system, when transmitting subframe more than the 7th predetermined quantity of the quantity of subframe, transmitting with described first the synchronizing signal subframe of subframe at interval of the 8th predetermined quantity being transmitted described LTE system.
26. methods according to claim 2, is characterized in that, described transmission subframe is used for downlink data transmission and/or transmitting uplink data.
27. methods according to claim 26, is characterized in that, when described transmission subframe is used for uplink and downlink transfer of data, in described transmission frame, arrange special subframe, wherein, described special subframe comprise following one of at least:
Descending pilot frequency time slot, up-downgoing Transition Guard interval, uplink pilot time slot, free time region.
28. methods according to claim 26, is characterized in that, when described transmission subframe is used for uplink and downlink transfer of data, in described transmission frame, arrange special subframe, wherein, described in intercept subframe comprise following one of at least:
Descending pilot frequency time slot, up-downgoing Transition Guard interval, uplink pilot time slot, free time region, data transmission region.
29. methods according to any one of claim 27 to 28, is characterized in that, described in intercept subframe and described special subframe duration sum is preset value.
30. methods according to claim 29, is characterized in that, described transmission frame order comprises one of following:
Downlink transfer subframe, special subframe, uplink subframe, intercept subframe, wherein said special subframe comprises descending pilot frequency time slot, up-downgoing Transition Guard interval, described subframe of intercepting comprises free time region, and described special subframe and the described duration sum intercepting subframe are the first preset time value;
Downlink transfer subframe, special subframe, uplink subframe, intercept subframe, wherein said special subframe comprises descending pilot frequency time slot, up-downgoing Transition Guard interval, described intercept subframe comprise uplink pilot time slot and free time region, described special subframe and the described duration sum intercepting subframe are described first preset time value;
Downlink transfer subframe, special subframe, uplink subframe, intercept subframe, wherein said special subframe comprises descending pilot frequency time slot, up-downgoing Transition Guard interval, uplink pilot time slot, described subframe of intercepting comprises free time region, and described special subframe and the described duration sum intercepting subframe are described first preset time value;
Downlink transfer subframe, special subframe, uplink subframe, intercept subframe, wherein said special subframe comprises descending pilot frequency time slot, up-downgoing Transition Guard interval, uplink pilot time slot, described intercept subframe comprise data transmission region and free time region, described special subframe and the described duration sum intercepting subframe are the second preset time value;
Intercept subframe, downlink transfer subframe, special subframe, uplink subframe, wherein, described subframe of intercepting comprises free time region and descending pilot frequency time slot, and described special subframe comprises the up-downgoing translation and protection time, and described special subframe and the described duration sum intercepting subframe are described first preset time value;
Intercept subframe, downlink transfer subframe, special subframe, uplink subframe, wherein, described subframe of intercepting comprises free time region and descending pilot frequency time slot, and described special subframe comprises up-downgoing translation and protection time and uplink pilot time slot, and described special subframe and the described duration sum intercepting subframe are described first preset time value;
Intercept subframe, downlink transfer subframe, special subframe, uplink subframe, wherein, described intercept subframe comprise uplink pilot time slot, free time region and descending pilot frequency time slot, described special subframe comprises the up-downgoing translation and protection time, and described special subframe and the described duration sum intercepting subframe are described first preset time value;
Intercept subframe, downlink transfer subframe, special subframe, uplink subframe, wherein, described subframe of intercepting comprises free time region and data transmission region, and described special subframe comprises descending pilot frequency time slot, up-downgoing translation and protection time and uplink pilot time slot, and described special subframe and the described duration sum intercepting subframe are described second preset time value;
Intercept subframe, uplink subframe, special subframe, downlink transfer subframe, wherein, described intercept subframe comprise descending pilot frequency time slot, free time region and uplink pilot time slot, special time slot comprises the up-downgoing translation and protection time, and described special subframe and the described duration sum intercepting subframe are described first preset time value;
Intercept subframe, uplink subframe, special subframe, downlink transfer subframe, wherein, described subframe of intercepting comprises free time region and uplink pilot time slot, and special time slot comprises up-downgoing translation and protection time and descending pilot frequency time slot, and described special subframe and the described duration sum intercepting subframe are described first preset time value;
Intercept subframe; uplink subframe; special subframe; downlink transfer subframe; wherein; described subframe of intercepting comprises free time region and data transmission region, and special time slot comprises uplink pilot time slot, up-downgoing translation and protection time and descending pilot frequency time slot, and described special subframe and the described duration sum intercepting subframe are described second preset time value.
31. methods according to claim 26, is characterized in that, when described transmission subframe is used for uplink and downlink transfer of data, for carrying out the subframe of transmitting uplink data and the subframe for carrying out downlink data transmission one of is at least determined in the following manner:
Determined by semi-static high-level signaling;
Indicated by dynamic signaling;
Determined by the mode of scheduling.
32. 1 kinds of data transmission devices, is characterized in that, comprising:
Whether detection module, be in idle condition for detecting unauthorized carrier wave;
Transport module, in testing result be described unauthorized carrier wave be in idle condition, in described unauthorized carrier wave, carry out the transmission of data.
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