CN105578573A - Authorized frequency band channel occupation time configuration method and device - Google Patents

Authorized frequency band channel occupation time configuration method and device Download PDF

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Publication number
CN105578573A
CN105578573A CN201510282606.3A CN201510282606A CN105578573A CN 105578573 A CN105578573 A CN 105578573A CN 201510282606 A CN201510282606 A CN 201510282606A CN 105578573 A CN105578573 A CN 105578573A
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China
Prior art keywords
time
channel holding
holding time
sub
cca
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CN201510282606.3A
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CN105578573B (en
Inventor
李明菊
朱亚军
张云飞
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Priority to CN201510282606.3A priority Critical patent/CN105578573B/en
Priority to PCT/CN2015/085865 priority patent/WO2016187954A1/en
Publication of CN105578573A publication Critical patent/CN105578573A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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

Abstract

The embodiment of the invention discloses an authorized frequency band channel occupation time configuration method comprising the steps that subframe configuration of a TDD LTE system is acquired; an indicating message of idle channel detection CCA time of an authorized frequency band is received, and the indicating message of CCA time includes the indicating message of uplink CCA time and the indicating message of downlink CCA time; and channel occupation time in the authorized frequency band is determined according to the subframe configuration and the indicating message of CCA time, and data transmitting and data receiving are performed according to channel occupation time. With application of the technical scheme, a UE is enabled to determine uplink channel occupation time and downlink channel occupation time according to the indicating message of CCA time and the uplink and downlink subframe configuration so that data transmitting is performed within uplink channel occupation time or a receiver is shut down within non-downlink channel occupation time and thus the objective of saving electric energy consumption of terminals can be achieved.

Description

A kind of collocation method of unauthorized band channels holding time and device
Technical field
The present invention relates to communication technical field, particularly relate to a kind of collocation method and device of unauthorized band channels holding time.
Background technology
Along with the sharply increase of service of mobile communication, mandate frequency range in 3GPP network does not more and more meet the traffic carrying capacity day by day increased, efficiency is beneficial in order to improve frequency resource in limited frequency resource further, 3GPP tissue turns to the access technology research of unauthorized frequency range, introduce the auxiliary access of LTE (LTEAssistedAccess, LAA) technology, to using unauthorized frequency range by Long Term Evolution (LongTermEvolution, the LTE) access technology of authorizing in frequency range is auxiliary.Compare the WiFi being operated in unauthorized frequency range, LTE access technology can provide higher frequency efficiency and more fully position covering, better service quality and mobility support.
WiFi technology in unauthorized frequency range is by Carrier Sense Multiple access/collision detection (CarrierSenseMultipleAccess/CollisionDetection, CSMA/CA) interference between different WiFi equipment is eliminated, before transmitting data, whether the first monitor channel of WiFi equipment is idle, if channel idle, keep out of the way, at the end of back off time, user starts to send signaling or data.In order to allow in unauthorized frequency range LTE equipment and WiFi equipment more fair enjoy resource, 3GPP introduces listem-before-talk (ListenBeforeTalk in LAA, LBT) mechanism, for the monitoring of LTE equipment in unauthorized frequency range with detect idle channel.LBT mechanism detects (ClearChannelAssessment, CAA) time at idle channel and monitors and detect the channel of unauthorized frequency range, when detecting that unauthorized frequency range is idle, starting to take unauthorized frequency range and carrying out data transmission.In TDD system, terminal knows up, down channel holding time so that terminal sends data or saves power consumption.But up, descending sub frame configuring condition complexity in TDD standard LTE system, uplink and downlink cannot use fixing Channel holding time, at present also not for the collocation method of the unauthorized band channels holding time of TDD system.
Summary of the invention
The embodiment of the invention discloses a kind of collocation method of unauthorized band channels holding time, use the technical scheme that the embodiment of the present invention provides, terminal equipment (UserEquipment can be made, UE) according to Indication message and the ascending-descending subframes configuration of CCA time, determine up channel holding time and down channel holding time, thus data transmission is carried out in up channel holding time, in down channel holding time, receiving data, in non-down channel holding time, close receiver reach the object that terminal saves power consumption.
Embodiment of the present invention first aspect provides a kind of collocation method of unauthorized band channels holding time, comprising:
Obtain the sub-frame configuration in TDD Long Term Evolution LTE system;
The idle channel receiving unauthorized frequency range detects the Indication message of CCA time, and the Indication message of described CCA time comprises Indication message and the Indication message of descending CCA time of up CCA time;
According to described sub-frame configuration and the Indication message of described CCA time, determine the Channel holding time in unauthorized frequency range, and carry out data transmission and data receiver according to described Channel holding time.
In conjunction with first aspect, in the execution mode that the first is possible, after the Indication message of the CCA time in the unauthorized frequency range of described reception, described method also comprises:
Receive the signaling message being used to indicate maximum channel holding time, to obtain maximum channel holding time; Described signaling message comprises radio resource control RRC message, physical layer descending control channel PDCCH signaling or channel reservation signal, and described maximum channel holding time comprises maximum up channel holding time and maximum downstream Channel holding time;
According to described sub-frame configuration, described maximum channel holding time and the Indication message of described CCA time, determine the Channel holding time in unauthorized frequency range, and carry out data transmission and data receiver according to described Channel holding time.
In conjunction with first aspect, in the execution mode that the second is possible, described according to described sub-frame configuration and the Indication message of described CCA time, determine the Channel holding time in unauthorized frequency range, comprising:
According to described sub-frame configuration, obtain the continuous uplink transmission time under described sub-frame configuration in radio frames; Described continuous uplink transmission time comprises the continuous sub-frame of uplink after uplink pilot time slot UpPTS and described UpPTS;
According to the Indication message of described up CCA time, determine the initial time of up channel holding time;
Described continuous uplink transmission time after the initial time of described up channel holding time is set as up channel holding time.
In conjunction with the first possible implementation of first aspect, in the execution mode that the third is possible, described according to described sub-frame configuration, described maximum channel holding time and the Indication message of described CCA time, determine the Channel holding time in unauthorized frequency range, comprising:
According to described sub-frame configuration, obtain the continuous uplink transmission time under described sub-frame configuration in radio frames; Described continuous uplink transmission time comprises the continuous sub-frame of uplink after UpPTS and described UpPTS;
According to the Indication message of described up CCA time, determine the initial time of up channel holding time;
Determine maximum up channel holding time end time according to the initial time of described up channel holding time and described maximum up channel holding time, the described continuous uplink transmission time between the initial time of described up channel holding time and described maximum up channel holding time end time is set as up channel holding time.
In conjunction with the second or the third possible implementation of first aspect, in the 4th kind of possible execution mode, the Indication message of described up CCA time comprises configuration information and the uplink authorization license of up CCA time;
The described Indication message according to the described up CCA time, determine the initial time of up channel holding time, comprising:
When receiving uplink authorization license, if by this uplink authorization permitted denotable sub-frame of uplink and last uplink authorization perhaps denotable sub-frame of uplink do not belong to the continuous sub-frame of uplink under sub-frame configuration, then start up CCA, and the finish time of described CCA time is set as the initial time of up channel holding time.
In conjunction with the 4th kind of possible implementation of first aspect, in the 5th kind of possible execution mode, after the described finish time by the described CCA time is set as the initial time of up channel holding time, described method also comprises:
By the uplink authorization license received, obtain the uplink subframe that the license of described uplink authorization allows to send continuously;
The uplink subframe sent continuously is allowed to be set as up channel holding time the described uplink authorization license after the initial time of described up channel holding time.
In conjunction with first aspect, in the 6th kind of possible execution mode, described according to described sub-frame configuration and the Indication message of described CCA time, determine the Channel holding time in unauthorized frequency range, comprising:
According to described sub-frame configuration, obtain the continuous downlink times under described sub-frame configuration in radio frames, described continuous downlink times comprises the descending pilot frequency time slot DwPTS after continuous descending sub frame and described continuous descending sub frame;
According to the Indication message of described descending CCA time, determine the initial time of down channel holding time;
Described continuous downlink times after the initial time of described down channel holding time is set as down channel holding time.
In conjunction with the first possible implementation of first aspect, in the 7th kind of possible execution mode, described according to described sub-frame configuration, described maximum channel holding time and the Indication message of described CCA time, determine the Channel holding time in unauthorized frequency range, comprising:
According to described sub-frame configuration, obtain the continuous downlink times under described sub-frame configuration in radio frames, described continuous downlink times comprises the DwPTS after continuous descending sub frame and described continuous descending sub frame;
According to the Indication message of described descending CCA time, determine the initial time of down channel holding time;
According to initial time and the described maximum downstream Channel holding time determination maximum downstream Channel holding time end time of described down channel holding time, the described continuous downlink times between the initial time of described down channel holding time and described maximum downstream Channel holding time end time is set as down channel holding time.
In conjunction with the 6th kind or the 7th kind of possible implementation of first aspect, in the 8th kind of possible execution mode, if the LBT mechanism in unauthorized frequency range is the LBT mechanism based on load, the Indication message of described descending CCA time is described channel reservation signal;
The described Indication message according to the described descending CCA time, determine the initial time of down channel holding time, comprising:
When receiving described channel reservation signal, is set as the initial time of described down channel holding time the moment receiving described channel reservation signal.
In conjunction with first aspect, in the 9th kind of possible execution mode, described sub-frame configuration comprises:
Preset sub-frame configuration, or the sub-frame configuration that base station is arranged according to traffic performance or channel conditions temporarily.
Embodiment of the present invention second aspect provides a kind of terminal equipment, comprising:
Receiving element, for obtaining the sub-frame configuration in TDDLTE system;
Described receiving element, also for receiving the Indication message of the CCA time of unauthorized frequency range, the Indication message of described CCA time comprises Indication message and the Indication message of descending CCA time of up CCA time;
Processing unit, for the described sub-frame configuration that obtains according to described receiving element and the Indication message of described CCA time, determines the Channel holding time in unauthorized frequency range, and carries out data transmission and data receiver according to described Channel holding time.
In conjunction with second aspect, in the implementation that the first is possible, described receiving element also for:
Receive the signaling message being used to indicate maximum channel holding time, to obtain maximum channel holding time; Described signaling message comprises RRC information, PDCCH signaling or channel reservation signal, and described maximum channel holding time comprises maximum up channel holding time and maximum downstream Channel holding time;
Described processing unit also for, the Indication message of the described CCA time that the described sub-frame configuration, described maximum channel holding time and the described receiving element that obtain according to described receiving element receive, determine the Channel holding time in unauthorized frequency range, and carry out data transmission and data receiver according to described Channel holding time.
In conjunction with second aspect, in the implementation that the second is possible, described processing unit specifically for:
According to the described sub-frame configuration that described receiving element obtains, obtain the continuous uplink transmission time under described sub-frame configuration in radio frames; Described continuous uplink transmission time comprises the continuous sub-frame of uplink after uplink pilot time slot UpPTS and described UpPTS;
According to the Indication message of the described up CCA time that described receiving element receives, determine the initial time of up channel holding time;
Described continuous uplink transmission time after the initial time of described up channel holding time is set as up channel holding time.
In conjunction with the first possible implementation of second aspect, in the implementation that the third is possible, described processing unit specifically for:
According to the described sub-frame configuration that described receiving element obtains, obtain the continuous uplink transmission time under described sub-frame configuration in radio frames; Described continuous uplink transmission time comprises the continuous sub-frame of uplink after UpPTS and described UpPTS;
According to the Indication message of the described up CCA time that described receiving element receives, determine the initial time of up channel holding time;
Determine maximum up channel holding time end time according to the described maximum up channel holding time that initial time and the described receiving element of described up channel holding time obtain, the described continuous uplink transmission time between the initial time of described up channel holding time and described maximum up channel holding time end time is set as up channel holding time.
In conjunction with the second or the third possible implementation of second aspect, in the 4th kind of possible implementation, the Indication message of the described up CCA time that described receiving element receives comprises configuration information and the uplink authorization license of up CCA time; Described processing unit specifically for:
When receiving element receives uplink authorization license, if by this uplink authorization permitted denotable sub-frame of uplink and last uplink authorization perhaps denotable sub-frame of uplink do not belong to the continuous sub-frame of uplink under sub-frame configuration, then start up CCA, and the finish time of described CCA time is set as the initial time of next up channel holding time.
In conjunction with the 4th kind of possible implementation of second aspect, in the 5th kind of possible implementation, described processing unit also for:
By the described uplink authorization license that receiving element receives, obtain the uplink subframe that the license of described uplink authorization allows to send continuously;
The uplink subframe sent continuously is allowed to be set as up channel holding time the described uplink authorization license after the initial time of described up channel holding time.
In conjunction with second aspect, in the 6th kind of possible implementation, described processing unit specifically for:
According to the described sub-frame configuration that described receiving element obtains, obtain the continuous downlink times under described sub-frame configuration in radio frames, described continuous downlink times comprises the descending pilot frequency time slot DwPTS after continuous descending sub frame and described continuous descending sub frame;
According to the Indication message of the descending CCA time that described receiving element receives, determine the initial time of down channel holding time;
Described continuous downlink times after the initial time of described down channel holding time is set as down channel holding time.
In conjunction with the first possible implementation of second aspect, in the 7th kind of possible implementation, described processing unit specifically for:
According to the sub-frame configuration that described receiving element obtains, obtain the continuous downlink times under described sub-frame configuration in radio frames, described continuous downlink times comprises the DwPTS after continuous descending sub frame and described continuous descending sub frame;
According to the Indication message of the described descending CCA time that described receiving element receives, determine the initial time of down channel holding time;
According to the described maximum downstream Channel holding time determination maximum downstream Channel holding time end time that initial time and the described receiving element of described down channel holding time obtain, the described continuous downlink times between the initial time of described down channel holding time and described maximum downstream Channel holding time end time is set as down channel holding time.
In conjunction with the 6th kind or the 7th kind of possible implementation of second aspect, in the 8th kind of possible implementation, it is characterized in that, if the LBT mechanism in unauthorized frequency range is the LBT mechanism based on load, the Indication message of the descending CCA time that described receiving element receives is described channel reservation signal; Described processing unit is used for:
When described receiving element receives described channel reservation signal, is set as the initial time of described down channel holding time the moment receiving described channel reservation signal.
In conjunction with second aspect, in the 9th kind of possible implementation, the described sub-frame configuration that described receiving element obtains comprises:
Preset sub-frame configuration, or the sub-frame configuration that base station is arranged according to traffic performance or channel conditions temporarily.
Can find out, use the technical scheme of the embodiment of the present invention, UE can be made to pass through to obtain the sub-frame configuration mode in TDDLTE system and the Indication message of the CCA time of the unauthorized frequency range of reception, determine the Channel holding time in unauthorized frequency range.Namely determine the maximum continuous sub-frame of uplink after up channel holding time initial time by the Indication message of up CCA time and sub-frame configuration mode, set it to up channel holding time; The maximum continuous sub-frame of uplink after the initial time of down channel holding time is determined by the Indication message of descending CCA time and sub-frame configuration mode, set it to down channel holding time, thus carry out data transmission and data receiver according to described up, down channel holding time.Preferably, can also by receiving the signaling message of maximum channel holding time, obtain the maximum channel holding time of base station sets, in conjunction with this maximum channel holding time, sub-frame configuration mode and the Indication message of above-mentioned CCA time, determine the Channel holding time in unauthorized frequency range.By said method, UE can determine up channel holding time, thus carries out upstream data transmission smoothly, and can determine down channel holding time, thus closes receiver in non-down channel holding time, realizes saving electric quantity consumption.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of the LBT mechanism based on frame structure that the embodiment of the present invention provides;
Fig. 2 is the schematic diagram of the LBT mechanism based on load that the embodiment of the present invention provides;
Fig. 3 is the schematic flow sheet of the collocation method of a kind of unauthorized band channels holding time that the embodiment of the present invention one provides;
Fig. 4 is the frame structure schematic diagram of TDDLTE system;
Fig. 5 is TDDLTE system subframe configuration schematic diagram;
Fig. 6 is the schematic flow sheet of the collocation method of another unauthorized band channels holding time that the embodiment of the present invention two provides;
Fig. 7 is the schematic flow sheet of the collocation method of another unauthorized band channels holding time that the embodiment of the present invention three provides;
Fig. 8-a is the continuous uplink transmission time schematic diagram under sub-frame configuration 0;
Fig. 8-b is the up channel holding time schematic diagram determined under based on the LBT mechanism of frame structure;
Fig. 8-c is the up channel holding time schematic diagram determined under based on the LBT mechanism of load;
Fig. 9 is the collocation method schematic diagram of another unauthorized band channels holding time that embodiment four provides;
Figure 10 is the collocation method schematic diagram of another unauthorized band channels holding time that embodiment five provides;
Figure 11 is the schematic diagram of the down channel holding time determined under based on the LBT mechanism of frame structure;
Figure 12 is the schematic diagram of the collocation method of another unauthorized band channels holding time that embodiment six provides;
Figure 13-a is the schematic diagram of the continuous downlink times under sub-frame configuration 3;
Figure 13-b is the schematic diagram of the down channel holding time determined under based on the LBT mechanism of load;
Figure 13-c is the schematic diagram of the another kind of down channel holding time determined under based on the LBT mechanism of load;
Figure 14 is the schematic diagram of the collocation method of another unauthorized band channels holding time that embodiment seven provides;
Figure 15 is the schematic diagram of a kind of terminal equipment that embodiment eight provides;
Figure 16 is the schematic diagram of the another kind of terminal equipment that embodiment nine provides.
Embodiment
3GPP introduces listem-before-talk (ListenBeforeTalk, LBT) mechanism in LAA, for the monitoring of LTE equipment in unauthorized frequency range with detect idle channel.LBT mechanism is mainly divided into the LBT mechanism based on frame structure and the LBT mechanism based on load.
Based on the principle of the LBT mechanism of frame structure see Fig. 1, as shown in Figure 1, an idle channel sense cycle comprises CCA time, Channel holding time and free time, and the CCA time is positioned at starting most of each idle channel sense cycle.Before transmitting data, within the CCA time, whether monitor channel is idle for LTE equipment, if channel idle sends data in Channel holding time subsequently, within the free time of this sense cycle, discharges channel; If channel busy detected within the CCA time, data can not be sent in Channel holding time subsequently.The CCA time takies one or more symbols of subframe, and as shown in Figure 1, CCA starts from first symbol of subframe 0.Advantage based on the LBT mechanism of frame structure is that implementation is simple, and shortcoming is that data transmission delay is larger.
Based on the principle of the LBT mechanism of load see Fig. 2, based in the LBT mechanism of load, the idle channel of LTE equipment detected without the fixed cycle, only just carried out idle channel detection when there being data to send.Before transmitting data, LTE equipment immediately on the initial CCA time that the next one is available monitor channel whether idle, if channel idle, then in Channel holding time subsequently, send data, otherwise do not send data; If monitor channel is busy or data do not send in Channel holding time on the initial CCA time, then start to expand the CCA time, whether idlely channel is detected within each expansion CCA time interval, the expansion CCA time interval is identical with initial CCA time span, if channel idle detected, remember a channel idle, in Channel holding time subsequently, send data when remembering idle to N secondary channel, otherwise do not send data.Wherein N value is the integer of 1 to q, and wherein q is the competition window length of expansion CCA time, is more than or equal to 4 and is less than or equal to 32.Advantage based on the LBT base station of load is the better performances when heavier loads, and data transmission delay is less.
The embodiment of the invention discloses a kind of collocation method of unauthorized band channels holding time, the technical scheme using the embodiment of the present invention to provide can make UE configure according to the ascending-descending subframes of the initial time of up channel holding time and TDD system, determine up channel holding time, thus carry out data transmission; Or UE can will send the initial time of the down channel holding time of data and the ascending-descending subframes configuration of TDD system to this UE according to base station, determine that base station will send the down channel holding time of data to this UE, in non-down channel holding time, close receiver, thus realize terminal saving power consumption.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment for a better understanding of the present invention, is described each embodiment below respectively.
Term " first ", " second ", " the 3rd " and " the 4th " etc. in specification of the present invention and claims and above-mentioned accompanying drawing are for distinguishing different object, instead of for describing particular order.In addition, term " comprises " and " having " and their any distortion, and intention is to cover not exclusive comprising.Such as contain the process of series of steps or unit, method, system, product or equipment and be not defined in the step or unit listed, but also comprise the step or unit do not listed alternatively, or also comprise alternatively for other intrinsic step of these processes, method, product or equipment or unit.
There is provided a kind of schematic flow sheet of collocation method of unauthorized band channels holding time for the embodiment of the present invention one see Fig. 3, Fig. 3, wherein, as shown in Figure 3, the method that the embodiment of the present invention one provides can comprise step:
S101, the sub-frame configuration obtained in TDDLTE system.
In TDDLTE system, base station and terminal are according to the position of sub-frame configuration mode determination ascending-descending subframes.As shown in Figure 4, the radio frames of 10ms comprises two fields to the frame structure of TDDLTE system, and half frame length is 5ms, and each field comprises 5 subframes, and subframe lengths is 1ms, and each subframe can be used for upstream or downstream transmission.There is multiple ascending-descending subframes allocation ratio in TDDLTE system, i.e. multiple sub-frame configuration mode, and 5ms can be divided into be the sub-frame configuration mode in cycle and the sub-frame configuration mode of 10ms.In the sub-frame configuration in 5ms cycle, subframe 1 and subframe 6 are special subframe, and in the sub-frame configuration in 10ms cycle, subframe 1 is special subframe.Each special subframe is made up of the protection interval (GuardPeriod, GP) of DwPTS, UpPTS and downstream transmission, and DwPTS is used for downlink transfer, and UpPTS is used for uplink.The sub-frame configuration in 4 kinds of to take 5ms as the sub-frame configuration in cycle and 3 kinds with 10ms be cycles, 6 kinds of subframe configuration modes as shown in Figure 5 altogether, and wherein " D " represents descending sub frame, and " U " represents sub-frame of uplink, and " S " represents special subframe.
TDD system sub-frame configuration mode to be informed to the UE in community by base station by transmitting system broadcast, know the sub-frame configuration mode that base station uses, thus obtain the position of ascending-descending subframes in each radio frames after the broadcast of UE receiving system.
In the LTE system of TDD standard, the state that also can arrive according to business carries out TDD configuration flexibly, arriving each subframe in the follow-up one or more radio frames of state setting according to business is sub-frame of uplink or descending sub frame, and the sub-frame configuration mode that up, descending sub frame in such radio frames are not necessarily preset according to above-mentioned 6 kinds of LTE system occurs.Such as, when downlink business is more, the subframe in next radio frames all can be configured to descending sub frame by base station, and this configuration can be sent to the UE in community by base station by system broadcasts.Up, the descending sub frame position set by base station can be obtained after the broadcast of UE receiving system.
S102, receive the Indication message of the CCA time of unauthorized frequency range, the Indication message of described CCA time comprises Indication message and the Indication message of descending CCA time of up CCA time.
UE, by receiving the Indication message of the unauthorized frequency range CCA time of base station transmission, can obtain the CCA time detecting unauthorized channel.The Indication message of described CCA time comprises Indication message and the Indication message of descending CCA time of up CCA time.UE obtains by the Indication message of up CCA time the CCA time that UE detects unauthorized frequency range, can obtain by the Indication message of descending CCA time the CCA time that unauthorized frequency range is detected in base station.
TDDLTE system can adopt the LBT mechanism based on frame structure and the LBT mechanism based on load in unauthorized frequency range.
Based under the LBT mechanism of frame structure, there is the fixing cycle CCA time, can determine the CCA time by CCA time span, CCA time migration, CCA time cycle.The subframe at CCA time place is determined by following formula, occurs the CCA time when frame number and subframe numbers meet this formula:
[(FrameNum×10)+SFN]％N CCA_Cycle＝N CCA_Offset
Wherein, N cCA_Cyclefor the CCA time cycle, N cCA_Offsetfor the sub-frame offset of CCA time.
Based under the LBT mechanism of frame structure, the configuration information of CCA time is determined by base station, comprising: CCA time span, the vertical shift of CCA chronon, CCA time cycle.Can the CCA time of UE be configured on the GP of special subframe, on the UpPTS of special subframe or sub-frame of uplink, the CCA time of base station can be configured on the sub-frame of uplink of the DwPTS of special subframe, descending sub frame or adjacent descending sub frame.The configuration information of above-mentioned CCA time is sent to UE by the Indication message of CCA time by base station.UE obtains the configuration information of CCA time from the Indication message of this CCA time, can be determined the initial time of each cycle CCA time by above formula.The Indication message of up CCA time and the Indication message of descending CCA time can be placed in same wireless heterogeneous networks (RadioResourceControl, RRC) reconfiguration message and send to UE by base station; The Indication message of up CCA time also can be placed in RRC reconfiguration message and send to UE by base station, is placed in system broadcasts by the Indication message of descending CCA time and sends to UE.Thus, UE can obtain the CCA time that UE detects unauthorized frequency range, and the CCA time of unauthorized frequency range is detected in base station.At up direction, base station starts idle channel by the resource location and triggering UE sending uplink authorization license (UplinkGrant) signaled UE transmission upstream data and detects.
Based under the LBT mechanism of load, by initial CCA time span, initial CCA time initial time, Channel holding time length and expansion CCA race length of window q, wherein q is more than or equal to the integer that 4 are less than or equal to 32, determine the CCA time of unauthorized frequency range, the CCA time comprises initial CCA time and expansion CCA time.UE is random selecting Integer N between 1 to q, within the expansion CCA time, if channel idle detected, make N deduct 1, otherwise N is constant, and when N is kept to 0, the expansion CCA time terminates, and enters Channel holding time, starts to send data.Based under the LBT mechanism of load, the configuration information of the CCA time of UE is determined by base station, comprising: initial CCA time span, the competition window length q of expansion CCA time.The configuration information of above-mentioned CCA time is sent to UE by RRC reconfiguration message by base station, allows UE obtain the configuration information of above-mentioned CCA time.At up direction, base station starts to detect idle channel by the resource location and triggering UE sending UplinkGrant signaled UE transmission upstream data, namely start the initial CCA time, initial CCA time and expansion CCA time can be positioned at the GP of special subframe, the UpPTS of special subframe or sub-frame of uplink.The Indication message of up CCA time comprises the RRC reconfiguration message and this UplinkGrant signaling of carrying CCA time configuration information.At down direction, the CCA time of base station can be positioned at the DwPTS of special subframe, on the sub-frame of uplink of descending sub frame or adjacent descending sub frame, after channel idle being detected, can reserve signaling (ReservationSignal) by transmitting channel indicates UE base station that the follow-up descending sub frame of use is sent downlink data to UE, ReservationSignal takies one or several symbol of a descending sub frame, can know after UE receives this ReservationSignal that starting busy channel at certain symbol of the current downlink subframe receiving this ReservationSignal or next nearest descending sub frame base station sends downlink data, therefore based under the LBT mechanism of load, the indication information of descending CCA time refers to this ReservationSignal.
S103, according to described sub-frame configuration and the Indication message of described CCA time, determine the Channel holding time in unauthorized frequency range, thus carry out data transmission and data receiver according to described Channel holding time.
The defining method of up channel holding time specifically comprises:
According to the sub-frame configuration mode that step S101 obtains, UE can determine the position can carrying out uplink in each radio frames, thus the continuous uplink transmission time obtained under described sub-frame configuration mode in radio frames, continuous uplink transmission time comprises the UpPTS in special subframe and the continuous sub-frame of uplink after this UpPTS.
According to the Indication message of the up CCA time received in step S102, the initial time of up channel holding time can be determined.Based under the LBT mechanism of frame structure, the particular location of the CCA time that UE was occurred by the configuration information of up CCA time known each cycle.When UE receives UplinkGrant, if the sub-frame of uplink that the sub-frame of uplink indicated by this UplinkGrant and last UplinkGrant indicate does not belong to the continuous sub-frame of uplink in sub-frame configuration, the nearest CCA time then before the continuous sub-frame of uplink at the sub-frame of uplink place of UplinkGrant instruction starts idle channel and detects, and is set as the initial time of next up channel holding time the finish time of described CCA time; If the sub-frame of uplink that the sub-frame of uplink indicated by this UplinkGrant and last UplinkGrant indicate belongs to the continuous sub-frame of uplink in sub-frame configuration, trigger idle channel when illustrating and receive last UplinkGrant instruction to detect, and the sub-frame of uplink that this UplinkGrant indicates belongs to the Channel holding time after this idle channel detects, therefore this UplinkGrant need not trigger idle channel detection again.Based under the LBT mechanism of load, when UE receives UpLinkGrant signaling, if the sub-frame of uplink that the sub-frame of uplink indicated by this UplinkGrant and last UplinkGrant indicate does not belong to the continuous sub-frame of uplink in sub-frame configuration, nearest protection interval GP, UpPTS then before the continuous sub-frame of uplink at the sub-frame of uplink place of UplinkGrant instruction or sub-frame of uplink start idle channel and detect, start initial CCA, is then set as the initial time of next up channel holding time the finish time of this CCA time; If the sub-frame of uplink that the sub-frame of uplink indicated by this UplinkGrant and last UplinkGrant indicate belongs to the continuous sub-frame of uplink in sub-frame configuration, trigger idle channel when illustrating and receive last UplinkGrant instruction to detect, and the sub-frame of uplink that this UplinkGrant indicates belongs to the Channel holding time after this idle channel detects, therefore this UplinkGrant no longer triggers idle channel detection.Send when detecting in the initial CCA time in the not idle or Channel holding time after the initial CCA time of channel that UE does not complete data, then start expansion CCA, be the initial time of up channel holding time next time at the end of the expansion CCA time.
Continuous uplink transmission time after the initial time of above-mentioned up channel holding time is set as up channel holding time.Such as, when the CCA time is arranged in the GP of special time slot, the UpPTS after this GP and some sub-frame of uplink afterwards thereof are set as up channel holding time; Be arranged in UpPTS time slot when the CCA time, the sub-frame of uplink after UpPTS remaining after the CCA time and this UpPTS is set as up channel holding time.
The defining method of down channel holding time specifically comprises:
According to the sub-frame configuration mode that step S101 obtains, UE determines the position can carrying out downlink transfer in each radio frames, thus the continuous downlink times obtained under described sub-frame configuration mode in radio frames, described continuous downlink times comprises the DwPTS after continuous descending sub frame and described continuous descending sub frame.
According to the Indication message of the descending CCA time received in step S102, the initial time of down channel holding time can be determined.Based under the LBT mechanism of frame structure, UE, by the particular location of the CCA time of the known base station of configuration information of descending CCA time, is the initial time of the down channel holding time of base station at the end of each CCA time.Based under the LBT mechanism of load, when UE receives ReservationSignal, known base station sends downlink data by using follow-up descending sub frame to this UE, and the moment receiving ReservationSignal is the initial time of down channel holding time.
Continuous downlink times after the initial time of the down channel holding time of above-mentioned acquisition is set as down channel holding time.Such as, when UE receives ReservationSignal at DwPTS, be set as down channel holding time by from the moment receiving ReservationSignal to DwPTS thereafter; When UE receives ReservationSignal at a descending sub frame, be set as down channel holding time by from current downlink subframe when receiving ReservationSignal to DwPTS thereafter.
After UE obtains up channel holding time, data can be sent in described up channel holding time, after obtaining down channel holding time, receiver can be opened and prepare downlink data receiving.
Can find out, the technical scheme using the embodiment of the present invention to provide can make UE configure according to the ascending-descending subframes of the initial time of up channel holding time and TDD system, determines up channel holding time, thus carries out data transmission; Or UE can will send the initial time of the down channel holding time of data and the ascending-descending subframes configuration of TDD system to this UE according to base station, determine that base station will send the down channel holding time of data to this UE, in non-down channel holding time, close receiver, thus realize terminal saving power consumption.
Another embodiment of the present invention, embodiment two provides a kind of collocation method of unauthorized band channels holding time, and be the schematic flow sheet of the embodiment of the present invention two see Fig. 6, Fig. 6, the method that the embodiment of the present invention two provides comprises step:
S201, the sub-frame configuration obtained in TDDLTE system.
TDD system sub-frame configuration mode to be informed to the UE in community by base station by transmitting system broadcast, know the sub-frame configuration mode that base station uses, thus obtain the position of ascending-descending subframes in each radio frames after the broadcast of UE receiving system.Such as, if system uses the known up-downgoing attribute from subframe 0 to subframe 9 of sub-frame configuration 0, UE to be DSUUUDSUUU, wherein D represents descending sub frame, and U represents sub-frame of uplink, and S represents special subframe.
In the LTE system of TDD standard, the state that also can arrive according to business carries out TDD configuration flexibly, arriving each subframe in the follow-up one or more radio frames of state setting according to business is sub-frame of uplink or descending sub frame, and the sub-frame configuration mode that up, descending sub frame in such radio frames are not necessarily preset according to 6 kinds of LTE system occurs.Such as, when downlink business is more, the subframe in next radio frames all can be configured to descending sub frame by base station, and this configuration can be sent to the UE in community by base station by system broadcasts.The rear i.e. subframe 0 set by known base station of UE receiving system broadcast is DDDDDDDDDD to the up-downgoing attribute of subframe 9, and wherein D represents descending sub frame.
S202, receive the Indication message of the CCA time of unauthorized frequency range, the Indication message of described CCA time comprises Indication message and the Indication message of descending CCA time of up CCA time.
UE, by receiving the Indication message of the unauthorized frequency range CCA time of base station transmission, can obtain the CCA time detecting unauthorized channel.The Indication message of described CCA time comprises Indication message and the Indication message of descending CCA time of up CCA time.UE obtains by the Indication message of up CCA time the CCA time that UE detects unauthorized frequency range, can obtain by the Indication message of descending CCA time the CCA time that unauthorized frequency range is detected in base station.
Based under the LBT mechanism of frame structure, the configuration information of CCA time comprises: CCA time span, the vertical shift of CCA chronon, CCA time cycle.Can the CCA time of UE be configured on the GP of special subframe, on the UpPTS of special subframe or sub-frame of uplink, the CCA time of base station can be configured on the sub-frame of uplink of the DwPTS of special subframe, descending sub frame or adjacent descending sub frame.The configuration information of above-mentioned CCA time is sent to UE by the Indication message of CCA time by base station.UE can determine the position of each cycle CCA time.The Indication message of up CCA time and the Indication message of descending CCA time are placed in same RRC reconfiguration message and send to UE by base station; The Indication message of up CCA time also can be placed in RRC reconfiguration message and send to UE by base station, is placed in system broadcasts by the Indication message of descending CCA time and sends to UE.Thus, UE can obtain the CCA time that UE detects unauthorized frequency range, also can obtain the CCA time that unauthorized frequency range is detected in base station.At up direction, base station starts idle channel by the resource location and triggering UE sending UplinkGrant signaled UE transmission upstream data and detects.
Based under the LBT mechanism of load, the configuration information of the CCA time of UE comprises: initial CCA time span, the competition window length q of expansion CCA time.The configuration information of the CCA time of UE is sent to UE by RRC reconfiguration message by base station, allows UE obtain the configuration information of above-mentioned CCA time.At up direction, base station starts to detect idle channel by the resource location and triggering UE sending UplinkGrant signaled UE transmission upstream data, namely starts initial CCA.Initial CCA time and expansion CCA time can be positioned at the GP of special subframe, the UpPTS of special subframe or sub-frame of uplink.The Indication message of up CCA time comprises the RRC reconfiguration message and this UplinkGrant signaling of carrying CCA time configuration information.At down direction, the CCA time of base station can be positioned at the DwPTS of special subframe, on the sub-frame of uplink of descending sub frame or adjacent descending sub frame, after channel idle being detected, can indicate UE base station that the follow-up descending sub frame of use is sent downlink data to UE by sending ReservationSignal, ReservationSignal takies one or several symbol of a descending sub frame, can know after UE receives this ReservationSignal that starting busy channel at certain symbol of the current downlink subframe receiving this ReservationSignal or next nearest descending sub frame base station sends downlink data, based under the LBT mechanism of load, the indication information of descending CCA time refers to this ReservationSignal.
S203, receive and be used to indicate the signaling message of maximum channel holding time, to obtain maximum channel holding time.
Base station can send maximum up channel holding time and maximum downstream Channel holding time by system broadcasts, RRC information or PDCCH signaling to UE, can also indicate maximum downstream Channel holding time by ReservationSignal to UE, the symbol numbers namely taken by scrambler and the different ReservationSignal of different ReservationSignal indicates different maximum downstream Channel holding times.UE detects that unauthorized frequency range is after the free time, and the time that busy channel sends upstream data is no more than maximum up channel holding time; Meanwhile, UE knows that the time of base station busy channel transmission downlink data can not exceed maximum downstream Channel holding time.
S204, according to above-mentioned sub-frame configuration, maximum channel holding time and the Indication message of CCA time, determine the Channel holding time in unauthorized frequency range, and carry out data transmission and data receiver according to described Channel holding time.
The defining method of up channel holding time specifically comprises:
According to the sub-frame configuration mode that step S201 obtains, UE can determine the position can carrying out uplink in each radio frames, thus the continuous uplink transmission time obtained under described sub-frame configuration mode in radio frames, continuous uplink transmission time comprises the UpPTS in special subframe and the continuous sub-frame of uplink after this UpPTS.
According to the Indication message of the up CCA time received in step S202, the initial time of up channel holding time can be determined.Based under the LBT mechanism of frame structure, the particular location of the CCA time that UE was occurred by the configuration information of up CCA time known each cycle.When UE receives UplinkGrant, if the sub-frame of uplink that the sub-frame of uplink indicated by this UplinkGrant and last UplinkGrant indicate does not belong to the continuous sub-frame of uplink in sub-frame configuration, the nearest CCA time then before the continuous sub-frame of uplink at the sub-frame of uplink place of UplinkGrant instruction starts idle channel and detects, and is set as the initial time of next up channel holding time the finish time of described CCA time; If the sub-frame of uplink that the sub-frame of uplink indicated by this UplinkGrant and last UplinkGrant indicate belongs to the continuous sub-frame of uplink in sub-frame configuration, trigger idle channel when illustrating and receive last UplinkGrant instruction to detect, and the sub-frame of uplink that this UplinkGrant indicates belongs to the Channel holding time after this idle channel detects, therefore this UplinkGrant need not trigger idle channel detection again.Based under the LBT mechanism of load, when UE receives UpLinkGrant signaling, if the sub-frame of uplink that the sub-frame of uplink indicated by this UplinkGrant and last UplinkGrant indicate does not belong to the continuous sub-frame of uplink in sub-frame configuration, nearest protection interval GP, UpPTS then before the continuous sub-frame of uplink at the sub-frame of uplink place of UplinkGrant instruction or sub-frame of uplink start idle channel and detect, start initial CCA, is then set as the initial time of next up channel holding time the finish time of this CCA time; If the sub-frame of uplink that the sub-frame of uplink indicated by this UplinkGrant and last UplinkGrant indicate belongs to the continuous sub-frame of uplink in sub-frame configuration, trigger idle channel when illustrating and receive last UplinkGrant instruction to detect, and the sub-frame of uplink that this UplinkGrant indicates belongs to the Channel holding time after this idle channel detects, therefore this UplinkGrant no longer triggers idle channel detection.Send when detecting in the initial CCA time in the not idle or Channel holding time after the initial CCA time of channel that UE does not complete data, then start to expand CCA, be the initial time of up channel holding time next time at the end of the expansion CCA time.
Maximum up channel holding time according to obtaining in the initial time of the above-mentioned up channel holding time determined and step 203 determines maximum up channel holding time end time, and the continuous uplink transmission time between the initial time of up channel holding time and maximum up channel holding time end time is set as up channel holding time.Such as, if the CCA time is when being arranged in the GP of special time slot, maximum up channel holding time is 2ms, the 2ms moment after GP is set to maximum up channel holding time end time, the continuous uplink transmission time within this 2ms is set as up channel holding time.
The defining method of down channel holding time specifically comprises:
According to the sub-frame configuration mode that step S201 obtains, UE determines the position can carrying out downlink transfer in each radio frames, thus the continuous downlink times obtained under described sub-frame configuration mode in radio frames, described continuous downlink times comprises the DwPTS after continuous descending sub frame and described continuous descending sub frame.
According to the Indication message of the descending CCA time received in step S202, the initial time of down channel holding time can be determined.Based under the LBT mechanism of frame structure, UE, by the particular location of the CCA time of the known base station of configuration information of descending CCA time, is the initial time of the down channel holding time of base station at the end of each CCA time.Based under the LBT mechanism of load, when UE receives ReservationSignal, known base station sends downlink data by using follow-up descending sub frame to this UE, and the moment receiving ReservationSignal is the initial time of down channel holding time.
According to the maximum downstream Channel holding time determination maximum downstream Channel holding time end time obtained in the initial time of the above-mentioned down channel holding time determined and step 203, the continuous downlink times between the initial time of down channel holding time and maximum downstream Channel holding time end time is set as down channel holding time.Such as, based under the LBT mechanism of frame structure, if UE by the configuration information of descending CCA time know the descending CCA time be arranged in descending sub frame before sub-frame of uplink, this descending sub frame start time is down channel holding time initial time, if maximum downstream Channel holding time is 2ms, the 2ms moment after this down channel holding time initial time is set to maximum downstream Channel holding time end time, the continuous downlink times within this 2ms is set to down channel holding time; And for example, based under the mechanism of load, when UE receives ReservationSignal at a descending sub frame, the moment receiving ReservationSignal is down channel holding time initial time, if the maximum channel holding time of ReservationSignal instruction is 2ms, the 2ms moment after this down channel holding time initial time is set to maximum downstream Channel holding time end time, then the continuous downlink times within this 2ms is set to down channel holding time.
After UE obtains up channel holding time, data can be sent in described up channel holding time, after obtaining down channel holding time, receiver can be opened and prepare downlink data receiving.
The embodiment of the present invention two is compared with embodiment one, maximum channel holding time is used to limit Channel holding time, UE is configured according to the ascending-descending subframes of the initial time of up channel holding time, maximum up channel holding time and TDD system, determine up channel holding time, thus carry out data transmission; Or UE can will send the ascending-descending subframes configuration of the initial time of the down channel holding time of data, maximum up channel holding time and TDD system to this UE according to base station, determine that base station will send the down channel holding time of data to this UE, in non-down channel holding time, close receiver, thus realize terminal saving power consumption.
Another embodiment of the present invention, embodiment three provides a kind of collocation method of unauthorized band channels holding time, determines up channel holding time for UE, and with reference to figure 7, the method can comprise step:
S301, the sub-frame configuration obtained in TDDLTE system.
TDD system sub-frame configuration mode to be informed to the UE in community by base station by transmitting system broadcast, know the sub-frame configuration mode that base station uses, thus obtain the position of ascending-descending subframes in each radio frames after the broadcast of UE receiving system.It is DSUUUDSUUU that the sub-frame configuration that initialization system uses in embodiment three broadcasts the rear known up-downgoing attribute from subframe 0 to subframe 9 for sub-frame configuration 0, UE reading system.
S302, the configuration information receiving the up CCA time of unauthorized frequency range and UplinkGrant signaling.
Based under the LBT mechanism of frame structure, the configuration information of up CCA time comprises: CCA time span, the vertical shift of CCA chronon, CCA time cycle.The CCA time of UE can be configured on the GP of special subframe by base station, on the UpPTS of special subframe or sub-frame of uplink, then the configuration information of above-mentioned CCA time is sent to UE by downlink signaling message.UE can determine the initial time of each cycle CCA time according to the configuration information of this up CCA time.For example, is configured in the GP in special subframe the CCA time, CCA time span is 20us, the CCA time cycle be configured to 5ms, after receiving up CCA configuration information UE known each possible CCA time UpPTS of being arranged in each field start before at the 20us of GP.UE starts idle channel and detects after receiving UplinkGrant, if UE receives the UplinkGrant signaling to subframe 2 in subframe 6, should start idle channel the nearest CCA time before subframe 2 and detect, namely in the GP of subframe 1, carry out idle channel detection.
Based under the LBT mechanism of load, the configuration information of up CCA time comprises: initial CCA time span, the competition window length q of expansion CCA time.The configuration information of up CCA time is sent to UE by RRC reconfiguration message by base station, allows UE obtain the configuration information of above-mentioned CCA time.Base station starts to detect idle channel by the resource location and triggering UE sending UplinkGrant signaled UE transmission upstream data, namely starts initial CCA.Initial CCA time and expansion CCA time can be positioned at the GP of special subframe, the UpPTS of special subframe or sub-frame of uplink.For example, the initial CCA time is configured to 20us, the competition window length of expansion CCA time is 4.UE starts initial CCA after receiving UplinkGrant, if UE receives the UplinkGrant signaling to subframe 2 in subframe 6, GP, UpPTS nearest before subframe 2 or sub-frame of uplink should carry out idle channel detection, namely carry out idle channel detection when the GP of subframe 1 starts.
S303, according to described sub-frame configuration, obtain the continuous uplink transmission time under described sub-frame configuration in radio frames.
According to the sub-frame configuration obtained in step S301, UE can determine the position of sub-frame of uplink, thus obtaining the continuous uplink transmission time under this sub-frame configuration, continuous uplink transmission time comprises the UpPTS in special subframe and the continuous sub-frame of uplink after this UpPTS.As shown in fig 8-a, according to sub-frame configuration 0, continuous uplink transmission time comprises the UpPTS in each special subframe and continuous 3 sub-frame of uplink afterwards.
S304, according to the configuration information of up CCA time and the initial time of UplinkGrant signaling determination up channel holding time.
When UE receives UplinkGrant signaling, start idle channel in the nearest CCA time before continuous sub-frame of uplink in the sub-frame configuration at the sub-frame of uplink place of this UplinkGrant signaling instruction to detect, is set as the initial time of up channel holding time the finish time of this CCA time.
As shown in Fig. 8-b, in example above based on the LBT mechanism of frame structure, the CCA time is configured in the GP in special subframe, and CCA time span is 20us, the CCA time cycle is configured to 5ms, at the 20us of GP before the UpPTS that known UE each possible CCA time is arranged in each special subframe starts.UE receives the UplinkGrant signaling to subframe 2 in subframe 6, and therefore in the GP of subframe 1, carry out idle channel detection, idle channel is detected finish time, namely the initial time of the UpPTS of subframe 1 is set as the initial time of up channel holding time.
As shown in Fig. 8-c, in example above based on the LBT mechanism of load, the initial CCA time is configured to 20us, initial CCA is started after UE receives UplinkGrant, if UE receives the UplinkGrant signaling to subframe 2 in subframe 6, initial CCA should be started in the CCA time that the next one is possible, namely carry out initial CCA when the GP of subframe 1 starts, GP is started the initial time that rear 20us is set as up channel holding time.
S305, the continuous uplink transmission time after the initial time of up channel holding time is set as up channel holding time.
As shown in Fig. 8-b, in example above based on the LBT mechanism of frame structure, the initial time of up channel holding time is the initial time of the UpPTS of subframe 1, is set as up channel holding time by the UpPTS from subframe 1 to follow-up 3 continuous sub-frame of uplink.
As shown in Fig. 8-c, in the example of the above LBT mechanism based on load, the initial time of up channel holding time is the 20us moment after GP starts, and will be set as up channel holding time from this moment to follow-up continuous print 3 continuous print sub-frame of uplink.
Can find out, use the technical scheme that the embodiment of the present invention provides, in the LBT mechanism based on frame structure or based under the LBT mechanism of load, UE can be made to configure according to the ascending-descending subframes of the Indication message of up CCA time and TDD system, determine up channel holding time, thus carry out data transmission.
Another embodiment of the present invention, embodiment four provides a kind of collocation method of unauthorized band channels holding time, determines up channel holding time, see Fig. 9 for UE, Fig. 9 is the schematic flow sheet of the embodiment of the present invention four, and the method that the embodiment of the present invention four provides comprises step:
S401, the sub-frame configuration obtained in TDDLTE system.
Adopt the example of embodiment three, it is DSUUUDSUUU that the sub-frame configuration that initialization system uses broadcasts the rear known up-downgoing attribute from subframe 0 to subframe 9 for sub-frame configuration 0, UE reading system.
S402, the configuration information receiving the up CCA time of unauthorized frequency range and UplinkGrant signaling.
Adopt the example of embodiment three, based under the LBT mechanism of frame structure, the CCA time is configured in the GP in special subframe, CCA time span is 20us, the CCA time cycle is configured to 5ms, after receiving up CCA configuration information UE known each possible CCA time UpPTS of being arranged in each field start before at the 20us of GP.Idle channel can be triggered after UE receives UplinkGrant detect.
S403, according to described sub-frame configuration, obtain the continuous uplink transmission time under described sub-frame configuration in radio frames.
According to the sub-frame configuration obtained in step S401, UE can determine the position of sub-frame of uplink, thus obtaining the continuous uplink transmission time under this sub-frame configuration, continuous uplink transmission time comprises the UpPTS in special subframe and the continuous sub-frame of uplink after this UpPTS.As shown in fig 8-a, according to sub-frame configuration 0, continuous uplink transmission time comprises the UpPTS in each special subframe and continuous 3 sub-frame of uplink afterwards.
S404, judge whether the sub-frame of uplink that this UplinkGrant indicates and the sub-frame of uplink that last UplinkGrant indicates belong to the continuous sub-frame of uplink in sub-frame configuration.
Such as, UE this receive UplinkGrant signaling to subframe 2, last time receives the UplinkGrant signaling to subframe 9, then UE judges whether the subframe 2 that this authorization signaling indicates and the subframe 9 that last authorization signaling indicates belong to the continuous sub-frame of uplink in sub-frame configuration.
If the sub-frame of uplink that this UplinkGrant of S405 indicates and the sub-frame of uplink that last UplinkGrant indicates do not belong to the continuous sub-frame of uplink in sub-frame configuration, according to the configuration information of CCA time and the initial time of UplinkGrant signaling determination up channel holding time.
Because subframe 2 and subframe 9 do not belong to continuous print sub-frame of uplink, i.e. the sub-frame of uplink that the sub-frame of uplink of this UplinkGrant instruction and last UplinkGrant indicate does not belong to the continuous sub-frame of uplink in sub-frame configuration.Therefore, this UplinkGrant needs to trigger idle channel and detects, start idle channel in the nearest CCA time before the continuous subframes at subframe 2 place to detect, namely in the GP of subframe 1, idle channel detection is carried out, idle channel is detected finish time, and namely the initial time of the UpPTS of subframe 1 is set as the initial time of Channel holding time.
If UE receives again the UplinkGrant signaling to subframe 3, the continuous sub-frame of uplink in sub-frame configuration is belonged to due to subframe 3 and subframe 2, UE has started idle channel and has detected when receiving the UplinkGrant to subframe 2, and subframe 3 and subframe 2 belong in same Channel holding time, idle channel need not be triggered when therefore receiving the UplinkGrant to subframe 3 and detect.
S406, the continuous uplink transmission time after the initial time of up channel holding time is set as up channel holding time.
Continuous uplink transmission time after the initial time of above-mentioned up channel holding time is set as up channel holding time.As shown in Fig. 8-b, the initial time of up channel holding time is the initial time of the UpPTS of subframe 1, is set as up channel holding time by the UpPTS from subframe 1 to follow-up 3 continuous sub-frame of uplink.
Another embodiment of the present invention, embodiment five provides a kind of collocation method of unauthorized band channels holding time, under based on the LBT mechanism of frame structure, down channel holding time is determined for UE, see Figure 10, Figure 10 is the schematic flow sheet of the embodiment of the present invention five, and the method that the embodiment of the present invention five provides comprises step:
S501, the sub-frame configuration obtained in TDDLTE system.
TDD system sub-frame configuration mode to be informed to the UE in community by base station by transmitting system broadcast, know the sub-frame configuration mode that base station uses, thus obtain the position of ascending-descending subframes in each radio frames after the broadcast of UE receiving system.Such as, if system uses the known up-downgoing attribute from subframe 0 to subframe 9 of sub-frame configuration 3, UE to be DSUUUDDDDD, wherein D represents descending sub frame, and U represents sub-frame of uplink, and S represents special subframe.
In the LTE system of TDD standard, the state that also can arrive according to business carries out TDD configuration flexibly, arriving each subframe in the follow-up one or more radio frames of state setting according to business is sub-frame of uplink or descending sub frame, and up, descending sub frame in such radio frames not necessarily occur like that according to sub-frame configuration 3.
S502, receive the configuration information of the descending CCA time of unauthorized frequency range.
Based under the LBT mechanism of frame structure, the configuration information of descending CCA time comprises: CCA time span, the vertical shift of CCA chronon, CCA time cycle.The descending CCA time is configurable on the sub-frame of uplink of the DwPTS of special subframe, descending sub frame or adjacent descending sub frame.The configuration information of above-mentioned CCA time is sent to UE by the Indication message of CCA time by base station.UE can determine the initial time of each cycle CCA time.For example, is configured in sub-frame of uplink 4, CCA time span 20us the CCA time, the CCA time cycle is 10ms.The Indication message of descending CCA time can be RRC reconfiguration message or system broadcast message.After UE receives descending CCA configuration information, UE known each possible CCA time is arranged in the subframe 4 of each radio frames.
S503, according to described sub-frame configuration, obtain the continuous downlink times under described sub-frame configuration in radio frames.
According to the sub-frame configuration that step S501 obtains, UE determines the position can carrying out downlink transfer in each radio frames, thus the continuous downlink times obtained under described sub-frame configuration mode in radio frames, described continuous downlink times comprises the DwPTS after continuous descending sub frame and described continuous descending sub frame.As shown in figure 11, according to sub-frame configuration 3, continuous downlink times comprise subframe 5 to subframe 9, next radio frames subframe 0 with and subsequent DwPTS.
S504, initial time according to the configuration information determination down channel holding time of CCA time.
According to the configuration messages of the descending CCA time received in step S502, the initial time of down channel holding time can be determined.Is set as the initial time of down channel holding time the finish time of each descending CCA time, as shown in figure 11, the CCA time is configured in the subframe 4 of each radio frames, CCA time span 20us, idle channel is detected finish time, and namely the start time of subframe 5 is set as the initial time of down channel holding time.
S505, the continuous downlink times after the initial time of down channel holding time is set as up channel holding time.
Continuous downlink times after the initial time of above-mentioned descending holding time is set as up channel holding time.As shown in figure 11, the initial time of descending holding time is the initial time of subframe 5, by the subframe 0 of subframe 5 to subframe 9, next radio frames with and subsequent DwPTS be set as down channel holding time.
Can find out, use the technical scheme that the embodiment of the present invention provides, based under the LBT mechanism of frame structure, UE can be made to configure according to the ascending-descending subframes of the configuration information of descending CCA time and TDD system, determine down channel holding time, thus make UE close receiver to reach the object of power saving at non-down channel holding time.
Yet another embodiment of the present invention, embodiment six provides a kind of collocation method of unauthorized band channels holding time, down channel holding time is determined for UE under based on the LBT mechanism of load, see Figure 12, Figure 12 is the schematic flow sheet of the embodiment of the present invention six, and the method that the embodiment of the present invention six provides comprises step:
S601, the sub-frame configuration obtained in TDDLTE system.
TDD system sub-frame configuration mode to be informed to the UE in community by base station by transmitting system broadcast, know the sub-frame configuration mode that base station uses, thus obtain the position of ascending-descending subframes in each radio frames after the broadcast of UE receiving system.Such as, if system uses the known up-downgoing attribute from subframe 0 to subframe 9 of sub-frame configuration 3, UE to be DSUUUDDDDD, wherein D represents descending sub frame, and U represents sub-frame of uplink, and S represents special subframe.The state that base station also can arrive according to business carries out TDD configuration flexibly, arriving each subframe in the follow-up one or more radio frames of state setting according to business is sub-frame of uplink or descending sub frame, and up, descending sub frame in such radio frames not necessarily occur like that according to sub-frame configuration 3.
S602, reception ReservationSignal signal.
After base station detects channel idle, can indicate UE base station that the follow-up descending sub frame of use is sent downlink data to UE by sending ReservationSignal, ReservationSignal takies one or several symbol of a descending sub frame, can know that starting busy channel at certain symbol of the current downlink subframe receiving this ReservationSignal or next nearest descending sub frame base station sends downlink data after UE receives this ReservationSignal.
S603, according to described sub-frame configuration, obtain the continuous downlink times under described sub-frame configuration in radio frames.
According to the sub-frame configuration that step S501 obtains, UE determines the position can carrying out downlink transfer in each radio frames, thus the continuous downlink times obtained under described sub-frame configuration mode in radio frames, described continuous downlink times comprises the DwPTS after continuous descending sub frame and described continuous descending sub frame.As shown in Figure 13-a, according to sub-frame configuration 3, continuous downlink times comprise subframe 5 to subframe 9, next radio frames subframe 0 with and subsequent DwPTS.
S604, according to the initial time of ReservationSignal signal determination down channel holding time received.
Based under the LBT mechanism of load, when UE receives ReservationSignal, known base station sends downlink data by using follow-up descending sub frame to this UE, and the moment receiving ReservationSignal is the initial time of down channel holding time.Such as, if UE receives ReservationSignal in subframe 6, then the moment receiving ReservationSignal is the initial time of down channel holding time.
S605, judge whether ReservationSignal indicates maximum downstream Channel holding time.
If S606 ReservationSignal does not indicate maximum downstream Channel holding time, the continuous downlink times after the initial time of down channel holding time is set as down channel holding time.
The continuous downlink times received after above-mentioned ReservationSignal is set as down channel holding time.
As shown in Figure 13-b, UE receives ReservationSignal in subframe 6, by the subframe 0 of subframe 6 to the subframe 9 after receiving ReservationSignal, next radio frames with and subsequent DwPTS be set as down channel holding time.
If S607 ReservationSignal indicates maximum downstream Channel holding time, determine maximum downstream Channel holding time end time, the continuous uplink transmission time between the initial time of down channel holding time and maximum downstream Channel holding time end time is set as up channel holding time.
For example, ReservationSignal is subframe 6 and 2 subframes thereafter by taking 2 symbols instruction maximum downstream Channel holding times, as shown in Figure 13-c, then the finish time of 2 subframes after subframe 6 and subframe 8 is set to maximum downstream Channel holding time end time, the continuous downlink times between the end time in the moment to subframe 8 that receive ReservationSignal is set as down channel holding time.
Can find out, use the technical scheme that the embodiment of the present invention provides, based under the LBT mechanism of load, the ascending-descending subframes configuration of the ReservationSignal that UE can be made to send according to base station and TDD system, determine down channel holding time, thus make UE close receiver to reach the object of power saving at non-down channel holding time.
Yet another embodiment of the present invention, embodiment seven provides a kind of collocation method of unauthorized band channels holding time, determines up channel holding time, see Figure 14 for UE, Figure 14 is the schematic flow sheet of the embodiment of the present invention seven, and the method that the embodiment of the present invention seven provides comprises step:
S701, the sub-frame configuration obtained in TDDLTE system.
Adopt the example of embodiment three, it is DSUUUDSUUU that the sub-frame configuration that initialization system uses broadcasts the rear known up-downgoing attribute from subframe 0 to subframe 9 for sub-frame configuration 0, UE reading system.
S702, the configuration information receiving the up CCA time of unauthorized frequency range and UplinkGrant signaling.
Adopt the example of embodiment three, based under the LBT mechanism of frame structure, the CCA time is configured in the GP in special subframe, CCA time span is 20us, the CCA time cycle is configured to 5ms, after receiving up CCA configuration information UE known each possible CCA time UpPTS of being arranged in each special subframe start before at the 20us of GP.Idle channel can be triggered after UE receives UplinkGrant detect.
S703, according to the configuration information of CCA time and the initial time of UplinkGrant signaling determination up channel holding time.
Such as, if UE receives the UplinkGrant signaling to subframe 2 and subframe 3, namely this UplinkGrant signaling dispatches subframe 2 and subframe 3 simultaneously.Trigger idle channel after receiving UplinkGrant to detect, start idle channel in the nearest CCA time before the continuous subframes at subframe 2 place and detect, namely in the GP of subframe 1, carry out idle channel detection.At the end of the GP of subframe 1, UpPTS start time is set as the initial time of up channel holding time.
S704, according to the initial time of up channel holding time and UplinkGrant signaling determination up channel holding time.
The uplink subframe sent continuously is allowed to be set as up channel holding time the UplinkGrant after the initial time of described up channel holding time.This UplinkGrant signaling received allows the uplink subframe sent continuously to be subframe 2 and subframe 3, therefore subframe 2 and subframe 3 is set as up channel holding time.
Can find out, the technical scheme using the embodiment of the present invention to provide, UE can be made according to the Indication message of up CCA time and UplinkGrant signaling to allow the uplink subframe sent continuously, determine up channel holding time, thus carry out data transmission.
The embodiment of the present invention eight provides a kind of terminal equipment, the collocation method of a kind of unauthorized band channels holding time that this terminal equipment can adopt the present invention to propose, namely can perform by each step in the collocation method of the unauthorized band channels holding time provided in above-described embodiment one to embodiment seven.See Figure 15, described terminal equipment a00 can comprise:
Receiving element a10, for obtaining the sub-frame configuration in TDDLTE system; Also for receiving the Indication message of the CCA time of unauthorized frequency range, the Indication message of described CCA time comprises Indication message and the Indication message of descending CCA time of up CCA time.
Processing unit a20, for the described sub-frame configuration that obtains according to described receiving element and the Indication message of described CCA time, determines the Channel holding time in unauthorized frequency range, and carries out data transmission and data receiver according to described Channel holding time.
In the execution mode that some are feasible, receiving element a10 also for, receive and be used to indicate the signaling message of maximum channel holding time, to obtain maximum channel holding time; Described signaling message comprises RRC information, PDCCH signaling or channel reservation signal, and described maximum channel holding time comprises maximum up channel holding time and maximum downstream Channel holding time.
In the execution mode that some are feasible, described processing unit a20 also for, the Indication message of the described CCA time that the described sub-frame configuration, described maximum channel holding time and the described receiving element that obtain according to described receiving element receive, determine the Channel holding time in unauthorized frequency range, and carry out data transmission and data receiver according to described Channel holding time.
The sub-frame configuration that described receiving element a10 receives comprises the sub-frame configuration that TDD system is preset, or the sub-frame configuration that base station is arranged according to traffic performance or channel conditions temporarily.
In the execution mode that some are feasible, the described sub-frame configuration that processing unit a20 obtains according to described receiving element and the Indication message determination up channel holding time of described CCA time: the described sub-frame configuration obtained according to described receiving element a10, obtain the continuous uplink transmission time under described sub-frame configuration in radio frames, described continuous uplink transmission time comprises the continuous sub-frame of uplink after uplink pilot time slot UpPTS and described UpPTS, again according to the Indication message of the described up CCA time of described receiving element a10 reception, determine the initial time of up channel holding time, described continuous uplink transmission time after the initial time of described up channel holding time is set as up channel holding time.If receiving element a10 receives the signaling message being used to indicate maximum channel holding time, the described maximum up channel holding time that processing unit a20 obtains according to the initial time of described up channel holding time and described receiving element a10 determines maximum up channel holding time end time, and the described continuous uplink transmission time between the initial time of described up channel holding time and described maximum up channel holding time end time is set as up channel holding time.
Wherein, the Indication message of the up CCA time of receiving element a10 reception comprises configuration information and the uplink authorization license of up CCA time.
In the execution mode that some are feasible, when receiving element a10 receives uplink authorization license, if by this uplink authorization permitted denotable sub-frame of uplink and last uplink authorization perhaps denotable sub-frame of uplink do not belong to the continuous sub-frame of uplink under sub-frame configuration, then processing unit a20 starts up CCA, and the finish time of described CCA time is set as the initial time of next up channel holding time.
In the execution mode that some are feasible, the uplink authorization license of processing unit a20 by receiving, obtain the uplink subframe that the license of described uplink authorization allows to send continuously, allow the uplink subframe sent continuously to be set as up channel holding time the described uplink authorization license after the initial time of described up channel holding time.
In the execution mode that some are feasible, the described sub-frame configuration that processing unit a20 obtains according to described receiving element and the Indication message determination down channel holding time of described CCA time: the described sub-frame configuration obtained according to described receiving element, obtain the continuous downlink times under described sub-frame configuration in radio frames, described continuous downlink times comprises the descending pilot frequency time slot DwPTS after continuous descending sub frame and described continuous descending sub frame; According to the Indication message of the descending CCA time that described receiving element receives, determine the initial time of down channel holding time; Described continuous downlink times after the initial time of described down channel holding time is set as down channel holding time.If receiving element a10 receives the signaling message being used to indicate maximum channel holding time, the maximum channel holding time determination maximum downstream Channel holding time end time that processing unit a20 obtains according to the initial time of described down channel holding time and described receiving element a10, is set as down channel holding time by the described continuous downlink times between the initial time of described down channel holding time and described maximum downstream Channel holding time end time.
In the execution mode that some are feasible, if the LBT mechanism in unauthorized frequency range is the LBT mechanism based on load, the Indication message of the descending CCA time that receiving element a10 receives is ReservationSignal signal.When receiving element a10 receives ReservationSignal signal, the moment receiving described ReservationSignal signal is set as the initial time of described down channel holding time by processing unit a20.
The embodiment of the present invention nine further provides a kind of terminal equipment, and see Figure 16, the base station equipment b00 that the embodiment of the present invention eight provides can comprise: at least one processor b10, bus b20, at least one and the memory b30 and communication interface b40 that are connected with bus.
Wherein, described memory b30 is for storing computer executed instructions, and processor b10 by bus b20, calls the computer executed instructions that stores in memory b30 and performs this instruction.When receiving the data of external equipment transmission, be used for from outer equipment receiving data by described communication interface b40, by bus b20 write memory b30, then by processor b10, the data of write memory b30 processed; When external device sends data, processor b10 by bus write memory b30, then sends to communication interface b40 by bus b20 the data processed the data processed, and last communication interface b40 sends to external equipment described data.Perform as the method in embodiment one to six to make terminal equipment.
Communication interface b40 receives the sub-frame configuration in TDDLTE system, and receives the Indication message of the CCA time of unauthorized frequency range, the sub-frame configuration received and the Indication message of CCA time is kept in memory b30 for processor b10 process.The Indication message of described CCA time comprises Indication message and the Indication message of descending CCA time of up CCA time.
Processor b10, according to described sub-frame configuration and the Indication message of described CCA time, determines the Channel holding time in unauthorized frequency range, and carries out data transmission and data receiver according to described Channel holding time.
In the execution mode that some are feasible, communication interface b40 also can receive the signaling message being used to indicate maximum channel holding time, to store maximum channel holding time in memory b30; Described signaling message comprises RRC information, PDCCH signaling or channel reservation signal, and described maximum channel holding time comprises maximum up channel holding time and maximum downstream Channel holding time.
In the execution mode that some are feasible, processor b10 can also according to the Indication message of the described CCA time of the described sub-frame configuration obtained, maximum channel holding time and reception, determine the Channel holding time in unauthorized frequency range, and carry out data transmission and data receiver according to described Channel holding time.
The sub-frame configuration received by communication interface b40 comprises the sub-frame configuration that TDD system is preset, or the sub-frame configuration that base station is arranged according to traffic performance or channel conditions temporarily.
In the execution mode that some are feasible, processor b10 is according to the sub-frame configuration obtained and the Indication message determination up channel holding time of CCA time: according to described sub-frame configuration, obtain the continuous uplink transmission time under described sub-frame configuration in radio frames, continuous uplink transmission time comprises the continuous sub-frame of uplink after uplink pilot time slot UpPTS and described UpPTS, again according to the Indication message of described up CCA time, determine the initial time of up channel holding time; Described continuous uplink transmission time after the initial time of described up channel holding time is set as up channel holding time.If communication interface b40 receives the signaling message being used to indicate maximum channel holding time, processor b10 determines maximum up channel holding time end time according to the initial time of described up channel holding time and described maximum up channel holding time, and the described continuous uplink transmission time between the initial time of described up channel holding time and described maximum up channel holding time end time is set as up channel holding time.
Wherein, the Indication message of the up CCA time received by communication interface b40 comprises configuration information and the uplink authorization license of up CCA time.
In the execution mode that some are feasible, when communication interface b40 receives uplink authorization license, if by this uplink authorization permitted denotable sub-frame of uplink and last uplink authorization perhaps denotable sub-frame of uplink do not belong to the continuous sub-frame of uplink under sub-frame configuration, then processor b10 starts up CCA, and the finish time of described CCA time is set as the initial time of next up channel holding time.
In the execution mode that some are feasible, the uplink authorization license of processor b10 by receiving, obtain the uplink subframe that the license of described uplink authorization allows to send continuously, allow the uplink subframe sent continuously to be set as up channel holding time the described uplink authorization license after the initial time of described up channel holding time.
In the execution mode that some are feasible, the sub-frame configuration that processor b10 obtains according to described receiving element and the Indication message determination down channel holding time of described CCA time: according to the described described sub-frame configuration received by communication interface b40, obtain the continuous downlink times under described sub-frame configuration in radio frames, described continuous downlink times comprises the descending pilot frequency time slot DwPTS after continuous descending sub frame and described continuous descending sub frame; According to the Indication message of described descending CCA time, determine the initial time of down channel holding time; Described continuous downlink times after the initial time of described down channel holding time is set as down channel holding time.If communication interface b40 receives the signaling message being used to indicate maximum channel holding time, processor b10 is used to indicate according to the initial time of described down channel holding time with from described the maximum channel holding time determination maximum downstream Channel holding time end time obtained the signaling message of maximum channel holding time, and the described continuous downlink times between the initial time of described down channel holding time and described maximum downstream Channel holding time end time is set as down channel holding time.
In the execution mode that some are feasible, if the LBT mechanism in unauthorized frequency range is the LBT mechanism based on load, the Indication message of the descending CCA time received by communication interface b40 is ReservationSignal signal.After communication interface b40 receives ReservationSignal signal, the moment receiving described ReservationSignal signal is set as the initial time of described down channel holding time by processor b10.
In sum, the terminal equipment that the embodiment of the present invention nine provides can be used in the present invention each step described in the collocation method of the Channel holding time of the unauthorized frequency range that embodiment one to seven provides, and repeats no more.
One of ordinary skill in the art will appreciate that the possible implementation of various aspects of the present invention or various aspects can be embodied as system, method or computer program.In addition, the possible implementation of each aspect of the present invention or various aspects can adopt the form of computer program, and computer program refers to the computer readable program code be stored in computer-readable medium.
Computer-readable medium can be mechanized data medium or computer-readable recording medium.Computer-readable recording medium is including but not limited to electronics, magnetic, optics, electromagnetism, infrared or semiconductor system, equipment or device, or aforesaid appropriately combined arbitrarily, as random access memory (RAM), read-only memory (ROM), Erasable Programmable Read Only Memory EPROM (EPROM or flash memory), optical fiber, portable read-only memory (CD-ROM).
Processor in computer reads the computer readable program code be stored in computer-readable medium, makes processor can perform the function action specified in the combination of each step or each step in flow charts; Generate the device implementing the function action specified in the combination of each block of block diagram or each piece.
Computer readable program code can perform completely on the computer of user, part performs on the computer of user, as independent software kit, part on the computer of the basis of user and part on the remote computer, or to perform on remote computer or server completely.Also it should be noted that in some alternate embodiment, in flow charts in each step or block diagram each piece the function that indicates may not according to occurring in sequence of indicating in figure.Such as, depend on involved function, in fact two steps illustrated in succession or two blocks may be executed substantially concurrently, or these blocks sometimes may be performed by with reverse order.
Above the method for the transfer of data of a kind of unauthorized frequency range disclosed in the embodiment of the present invention and device are described in detail, apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims (20)

1. a collocation method for unauthorized band channels holding time, is characterized in that, comprising:
Obtain the sub-frame configuration in TDD Long Term Evolution LTE system;
The idle channel receiving unauthorized frequency range detects the Indication message of CCA time, and the Indication message of described CCA time comprises Indication message and the Indication message of descending CCA time of up CCA time;
According to described sub-frame configuration and the Indication message of described CCA time, determine the Channel holding time in unauthorized frequency range, and carry out data transmission and data receiver according to described Channel holding time.
2. method according to claim 1, is characterized in that, after the Indication message of the CCA time in the unauthorized frequency range of described reception, described method also comprises:
Receive the signaling message being used to indicate maximum channel holding time, to obtain maximum channel holding time; Described signaling message comprises radio resource control RRC message, physical layer descending control channel PDCCH signaling or channel reservation signal, and described maximum channel holding time comprises maximum up channel holding time and maximum downstream Channel holding time;
According to described sub-frame configuration, described maximum channel holding time and the Indication message of described CCA time, determine the Channel holding time in unauthorized frequency range, and carry out data transmission and data receiver according to described Channel holding time.
3. method according to claim 1, is characterized in that, described according to described sub-frame configuration and the Indication message of described CCA time, determines the Channel holding time in unauthorized frequency range, comprising:
According to described sub-frame configuration, obtain the continuous uplink transmission time under described sub-frame configuration in radio frames; Described continuous uplink transmission time comprises the continuous sub-frame of uplink after uplink pilot time slot UpPTS and described UpPTS;
According to the Indication message of described up CCA time, determine the initial time of up channel holding time;
Described continuous uplink transmission time after the initial time of described up channel holding time is set as up channel holding time.
4. method according to claim 2, is characterized in that, described according to described sub-frame configuration, described maximum channel holding time and the Indication message of described CCA time, determines the Channel holding time in unauthorized frequency range, comprising:
According to described sub-frame configuration, obtain the continuous uplink transmission time under described sub-frame configuration in radio frames; Described continuous uplink transmission time comprises the continuous sub-frame of uplink after UpPTS and described UpPTS;
According to the Indication message of described up CCA time, determine the initial time of up channel holding time;
Determine maximum up channel holding time end time according to the initial time of described up channel holding time and described maximum up channel holding time, the described continuous uplink transmission time between the initial time of described up channel holding time and described maximum up channel holding time end time is set as up channel holding time.
5. the method according to claim 3 or 4, is characterized in that, the Indication message of described up CCA time comprises configuration information and the uplink authorization license of up CCA time;
The described Indication message according to the described up CCA time, determine the initial time of up channel holding time, comprising:
When receiving uplink authorization license, if by this uplink authorization permitted denotable sub-frame of uplink and last uplink authorization perhaps denotable sub-frame of uplink do not belong to the continuous sub-frame of uplink under sub-frame configuration, then start up CCA, and the finish time of described CCA time is set as the initial time of up channel holding time.
6. method according to claim 5, is characterized in that, after the described finish time by the described CCA time is set as the initial time of up channel holding time, described method also comprises:
By the uplink authorization license received, obtain the uplink subframe that the license of described uplink authorization allows to send continuously;
The uplink subframe sent continuously is allowed to be set as up channel holding time the described uplink authorization license after the initial time of described up channel holding time.
7. method according to claim 1, is characterized in that, described according to described sub-frame configuration and the Indication message of described CCA time, determines the Channel holding time in unauthorized frequency range, comprising:
According to described sub-frame configuration, obtain the continuous downlink times under described sub-frame configuration in radio frames, described continuous downlink times comprises the descending pilot frequency time slot DwPTS after continuous descending sub frame and described continuous descending sub frame;
According to the Indication message of described descending CCA time, determine the initial time of down channel holding time;
Described continuous downlink times after the initial time of described down channel holding time is set as down channel holding time.
8. method according to claim 2, is characterized in that, described according to described sub-frame configuration, described maximum channel holding time and the Indication message of described CCA time, determines the Channel holding time in unauthorized frequency range, comprising:
According to described sub-frame configuration, obtain the continuous downlink times under described sub-frame configuration in radio frames, described continuous downlink times comprises the DwPTS after continuous descending sub frame and described continuous descending sub frame;
According to the Indication message of described descending CCA time, determine the initial time of down channel holding time;
According to initial time and the described maximum downstream Channel holding time determination maximum downstream Channel holding time end time of described down channel holding time, the described continuous downlink times between the initial time of described down channel holding time and described maximum downstream Channel holding time end time is set as down channel holding time.
9. the method according to claim 7 or 8, is characterized in that, if the LBT mechanism in unauthorized frequency range is the LBT mechanism based on load, the Indication message of described descending CCA time is described channel reservation signal;
The described Indication message according to the described descending CCA time, determine the initial time of down channel holding time, comprising:
When receiving described channel reservation signal, is set as the initial time of described down channel holding time the moment receiving described channel reservation signal.
10. method according to claim 1, is characterized in that, described sub-frame configuration comprises:
Preset sub-frame configuration, or the sub-frame configuration that base station is arranged according to traffic performance or channel conditions temporarily.
11. 1 kinds of terminal equipments, is characterized in that, comprising:
Receiving element, for obtaining the sub-frame configuration in TDDLTE system;
Described receiving element, also for receiving the Indication message of the CCA time of unauthorized frequency range, the Indication message of described CCA time comprises Indication message and the Indication message of descending CCA time of up CCA time;
Processing unit, for the described sub-frame configuration that obtains according to described receiving element and the Indication message of described CCA time, determines the Channel holding time in unauthorized frequency range, and carries out data transmission and data receiver according to described Channel holding time.
12. equipment according to claim 11, is characterized in that, described receiving element also for:
Receive the signaling message being used to indicate maximum channel holding time, to obtain maximum channel holding time; Described signaling message comprises RRC information, PDCCH signaling or channel reservation signal, and described maximum channel holding time comprises maximum up channel holding time and maximum downstream Channel holding time;
Described processing unit also for, the Indication message of the described CCA time that the described sub-frame configuration, described maximum channel holding time and the described receiving element that obtain according to described receiving element receive, determine the Channel holding time in unauthorized frequency range, and carry out data transmission and data receiver according to described Channel holding time.
13. equipment according to claim 11, is characterized in that, described processing unit specifically for:
According to the described sub-frame configuration that described receiving element obtains, obtain the continuous uplink transmission time under described sub-frame configuration in radio frames; Described continuous uplink transmission time comprises the continuous sub-frame of uplink after uplink pilot time slot UpPTS and described UpPTS;
According to the Indication message of the described up CCA time that described receiving element receives, determine the initial time of up channel holding time;
Described continuous uplink transmission time after the initial time of described up channel holding time is set as up channel holding time.
14. equipment according to claim 12, is characterized in that, described processing unit specifically for:
According to the described sub-frame configuration that described receiving element obtains, obtain the continuous uplink transmission time under described sub-frame configuration in radio frames; Described continuous uplink transmission time comprises the continuous sub-frame of uplink after UpPTS and described UpPTS;
According to the Indication message of the described up CCA time that described receiving element receives, determine the initial time of up channel holding time;
Determine maximum up channel holding time end time according to the described maximum up channel holding time that initial time and the described receiving element of described up channel holding time obtain, the described continuous uplink transmission time between the initial time of described up channel holding time and described maximum up channel holding time end time is set as up channel holding time.
15. equipment according to claim 13 or 14, is characterized in that, the Indication message of the described up CCA time that described receiving element receives comprises configuration information and the uplink authorization license of up CCA time; Described processing unit specifically for:
When receiving element receives uplink authorization license, if by this uplink authorization permitted denotable sub-frame of uplink and last uplink authorization perhaps denotable sub-frame of uplink do not belong to the continuous sub-frame of uplink under sub-frame configuration, then start up CCA, and the finish time of described CCA time is set as the initial time of next up channel holding time.
16. equipment according to claim 15, is characterized in that, described processing unit also for:
By the described uplink authorization license that receiving element receives, obtain the uplink subframe that the license of described uplink authorization allows to send continuously;
The uplink subframe sent continuously is allowed to be set as up channel holding time the described uplink authorization license after the initial time of described up channel holding time.
17. equipment according to claim 11, is characterized in that, described processing unit specifically for:
According to the described sub-frame configuration that described receiving element obtains, obtain the continuous downlink times under described sub-frame configuration in radio frames, described continuous downlink times comprises the descending pilot frequency time slot DwPTS after continuous descending sub frame and described continuous descending sub frame;
According to the Indication message of the descending CCA time that described receiving element receives, determine the initial time of down channel holding time;
Described continuous downlink times after the initial time of described down channel holding time is set as down channel holding time.
18. equipment according to claim 12, is characterized in that, described processing unit specifically for:
According to the sub-frame configuration that described receiving element obtains, obtain the continuous downlink times under described sub-frame configuration in radio frames, described continuous downlink times comprises the DwPTS after continuous descending sub frame and described continuous descending sub frame;
According to the Indication message of the described descending CCA time that described receiving element receives, determine the initial time of down channel holding time;
According to the described maximum downstream Channel holding time determination maximum downstream Channel holding time end time that initial time and the described receiving element of described down channel holding time obtain, the described continuous downlink times between the initial time of described down channel holding time and described maximum downstream Channel holding time end time is set as down channel holding time.
19. equipment according to claim 17 or 18, is characterized in that, if the LBT mechanism in unauthorized frequency range is the LBT mechanism based on load, the Indication message of the descending CCA time that described receiving element receives is described channel reservation signal; Described processing unit is used for:
When described receiving element receives described channel reservation signal, is set as the initial time of described down channel holding time the moment receiving described channel reservation signal.
20. equipment according to claim 11, is characterized in that, the described sub-frame configuration that described receiving element obtains comprises:
Preset sub-frame configuration, or the sub-frame configuration that base station is arranged according to traffic performance or channel conditions temporarily.
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