The content of the invention
The present invention is to solve the problem how UE under inactive state carries out data transmission between base station.
To solve the above problems, a kind of transmission method of data is the embodiment of the invention provides, it is adaptable under inactive stateUser terminal and base station between transmit data；Methods described includes：The user terminal judges certainly before the first data are sentWhether body needs to switch to connected state；The user terminal adjusts the state of itself according to judged result, and with the shape after adjustmentState sends first data to the base station.
Alternatively, it is described to judge whether itself switch to connected state：When the data volume of first data is more than defaultDuring the first data-quantity threshold, judge itself to need to switch to connected state, otherwise maintain from as inactive state.
Alternatively, it is described to judge itself whether to switch to connected state, including：When first data are continuously generated,Judgement itself needs to switch to connected state, otherwise maintains from as inactive state.
Alternatively, before the state with after adjustment sends first data to the base station, also include：Obtain withUplink synchronous between the base station.
Alternatively, the uplink synchronous between the acquirement and the base station, including：By way of initiating Stochastic accessing,Obtain and the uplink synchronous between the base station.
Alternatively, it is described by way of initiating Stochastic accessing, obtain and the uplink synchronous between the base station, including：When needing to switch to connected state, the identification information and RRC for sending itself to the base station during Stochastic accessing are connectedThe information of recovery, recovers and the RRC connections between the base station, obtains and the uplink synchronous between the base station.
Alternatively, the state with after adjustment sends first data to base station, including：With the state after adjustment simultaneouslyThe shared data transmission resource configured using the base station, first data are sent to base station.
Alternatively, the shared data transmission resource is that is sent under the inactive state of the user terminal by the base stationBefore one data, configured by system message or dynamic dispatching.
Alternatively, after first data are sent to base station with connected state, methods described also includes：The user terminalJudge whether need in Preset Time to transmit other data, when needing to transmit other data in Preset Time, maintain from asConnected state；The request for switching to inactive state is otherwise sent to base station, inactive state is switched to according to by the base stationRequest notifies that the user terminal enters inactive state.
Alternatively, methods described also includes：The user terminal is logical when the transmission data for receiving the base station transmissionWhen knowing message, corresponding feedback message is sent to the base station, the notification message includes the mark letter of the user terminalCease and indicate whether the user terminal receives the configured information of the second data in current state；The base station is received according toSecond data that feedback message sends.
Alternatively, the indicating user terminal whether current state receive the second data configured information be by base station according toWhat the data volume size of second data determined.
Alternatively, when the data volume of second data is more than default second data-quantity threshold, indicate to believe by describedBreath indicates the user terminal that second data are received under connected state, otherwise indicates the user terminal to be connect under current stateReceive second data.
Alternatively, the feedback message is the configured information that the user terminal sends when up asynchronous.
Alternatively, the configured information that the user terminal sends when up asynchronous is by system message or described logicalKnow message arrangement.
Alternatively, the feedback message is the particular sequence that the base station is pre-configured with.
Alternatively, the feedback message is sent in the random access procedure that the user terminal is initiated.
The embodiment of the present invention additionally provides a kind of user terminal, and the user terminal is suitable under inactive state between base stationTransmission data；Including：Whether first judging unit, is suitable to before the first data are sent, and judges itself need to switch to connected state；First state adjustment unit, is suitable to adjust the state of itself according to the judged result of first judging unit；First data are sent outUnit is sent, is suitable to send first data to base station with the state after adjustment.
Alternatively, first judging unit is suitable to be more than default first data volume threshold when the data volume of first dataDuring value, judge itself to need to switch to connected state, otherwise maintain from as inactive state.
Alternatively, first judging unit is suitable to, when first data are continuously generated, judge itself to need switchingTo connected state, otherwise maintain from as inactive state.
Alternatively, the user terminal also includes：Synchronization unit, is suitable to after first data transmission unit is to adjustState send first data to base station before, obtain and the uplink synchronous between the base station.
Alternatively, the synchronization unit is suitable to by way of initiating Stochastic accessing, obtains upper and the base station betweenRow is synchronous.
Alternatively, the synchronization unit is suitable to when needing to switch to connected state, to described during Stochastic accessingBase station send itself identification information and RRC connection recover information, recover and the base station between RRC connection, obtain withUplink synchronous between the base station.
Alternatively, first data transmission unit is suitable to the state after adjustment and using sharing that the base station configuresData transmission resources, first data are sent to base station.
Alternatively, the shared data transmission resource is that is sent under the inactive state of the user terminal by the base stationBefore one data, configured by system message or dynamic dispatching.
Alternatively, the user terminal also includes：Second judging unit, is suitable to when sending described the to base station with connected stateAfter one data, judge whether need to transmit other data in Preset Time；Second state adjustment unit, is suitable to sentence when described secondDisconnected unit judges, when needing to transmit other data in Preset Time, to maintain from as connected state；Otherwise sent to base station and switchedTo the request of inactive state, it is non-that the request that inactive state is switched to according to by the base station notifies that the user terminal entersActivated state.
Alternatively, the user terminal also includes：Feedback unit, is suitable to when the transmission data for receiving the base station transmissionNotification message when, send corresponding feedback message to the base station, the notification message includes the mark of the user terminalWhether knowledge information and the instruction user terminal receive the configured information of data in current state；First data receipt unit, fitsIn the second data that the reception base station sends according to the feedback message.
Alternatively, the indicating user terminal whether current state receive the second data configured information be by base station according toWhat the data volume size of second data determined.
Alternatively, when the data volume of second data is more than default second data-quantity threshold, the configured information refers toShow that the user terminal receives second data under connected state, otherwise indicate the user terminal that institute is received under current stateState the second data.
Alternatively, the feedback message that the feedback unit sends is for the user terminal sends when up asynchronousConfigured information.
Alternatively, the configured information that the user terminal sends when up asynchronous is by system message or described logicalKnow message arrangement.
Alternatively, the feedback message that the feedback message that the feedback unit sends sends is the spy that the base station is pre-configured withSequencing is arranged.
Alternatively, the feedback unit sends the feedback in the random access procedure that the user terminal is initiated and disappearsBreath.
Alternatively, when the configured information indicates the user terminal to receive the second data under current state, the fingerShow that information includes：The identification information of the user terminal；When the configured information indicates the user terminal to be connect under connected stateWhen receiving the second data, the configured information includes：The information that identification information and the RRC connection of the user terminal recover.
Using such scheme, whether UE first judges itself need to switch to connected state before the first data are sent, further according toJudged result adjusts oneself state, finally first data is sent to base station with the state after adjustment, it is possible thereby to realize UEThe transmission of the upstream data between base station.
Further, the shared data transmission resource of base station configuration can be utilized due to UE, described the is sent to base stationOne data, therefore UE can be caused in the case where uplink synchronous are not carried out with base station, realize and the data transfer between base station.
Further, whether UE is to base station with connected state after first data are sent, by judging needed in Preset TimeOther data are transmitted, and when needing to transmit other data in Preset Time, maintains, from as connected state, otherwise to be sent out to base stationThe request for switching to inactive state is sent, it is non-that the request that inactive state is switched to according to by the base station notifies that the UE entersActivated state, can cause that UE transmits data with more stable communications status, it is to avoid waste Internet resources.
Further, UE sends phase when the notification message of the transmission data that the base station sends is received to the base stationThe feedback message answered, to receive the second data that base station sends according to the feedback message, it is possible thereby to realize UE and base station itBetween downlink data transmission.
Specific embodiment
Fig. 1 is a kind of Signalling exchange schematic diagram in data transmission procedure in the prior art between UE and base station.ReferenceFig. 1, in LTE or 5G, UE access networks when there is data transfer demands are set up RRC and are connected with base station, and then set up data withoutLine is carried, to transmit data.Specific data transmission procedure is as follows：
Step 101, UE sends RRC connection request signaling to base station.
UE initiates Stochastic accessing in the serving cells, and RRC connection request is sent during Stochastic accessing to base station.Wherein, the base station can be the base station in LTE, it is also possible to the base station in 5G.
Step 102, base station sends RRC connections and sets up signaling to UE.
If Stochastic accessing success, base station can send RRC connections and set up signaling to UE.During RRC connections are set up,Base station is configured with Signaling Radio Bearer (Signalling Radio Bearer, SRB) for UE.
Step 103, UE sends RRC connections and sets up completion signaling to base station.
The Non-Access Stratum signaling such as service request for completing to be sent comprising UE in signaling is set up in wherein described RRC connections.
Step 104, base station sends initial UE message to the mobile management entity (MME) in core net.
When the RRC connections that base station receives UE transmissions are set up completes signaling, suitable MME, Ran Houxiang can be selected for the UEThe MME of selection sends initial UE message.Wherein, the Non-Access Stratum signaling for being sent comprising UE in the initial UE message.The core of LTEHeart net includes the network element such as MME and gateway；The core net of 5G includes the new network element for introducing.
Step 105, MME sends initial context and sets up demand signalling to base station.
MME knows that UE needs to set up Data Radio Bearer to transmit data according to the Non-Access Stratum signaling for receiving, thereforeMME sends initial context and sets up demand signalling to base station.Wherein described initial context is set up in request to include to be needed to set upBearing parameter, security configuration parameter etc..
Step 106, base station sends safe mode command to UE.
After base station receives the initial context foundation request of MME transmissions, bearing parameter, the security configuration for needing to set up are obtainedParameter etc., and then base station controls itself in safe mode, and safe mode command is sent to UE so that UE is similarly in safetyPattern.
Step 107, UE sends safe mode and completes signaling to base station.
The parameters such as the algorithm in UE application security mode commands, adjust and itself are in safe mode, and send peace to base stationSyntype completes signaling.
Step 108, base station sends RRC connections and reconfigures signaling to UE.
Base station performs RRC connection reconfiguration courses, and sending RRC connections to UE reconfigures signaling to notify that UE needs to set upThe parameter configuration such as Data Radio Bearer and measurement configuration.
Step 109, UE sends RRC connections and reconfigures completion signaling to base station.
The parameter configuration that the RRC connections that UE applications are received are included in reconfiguring, reconfigures RRC connections, and send RRC companiesConnect and reconfigure completion signaling to base station.
Step 110, base station sends initial context and sets up completion signaling to MME, notifies that MME is carried and has built up.
Step 111, can start the downstream transmission of data between UE and base station and MME.
Under normal circumstances, after data transfer is finished, base station will discharge the RRC connections of UE to UE, UE is entered Idle state.ThisAfterwards, if UE needs page data again, the process of 101 to the step 111 that needs to repeat the above steps causes signaling consumption veryGreatly, the efficiency of data transfer is substantially reduced.
In order to save signaling consumption, the efficiency of transmission of data is improved, inactive state is introduced in 5G, but does not provide UE and existThe related art scheme carried out data transmission with base station under inactive state.
Regarding to the issue above, The embodiment provides a kind of data transmission method, methods described is applied to non-sharpData are transmitted between user terminal and base station under state living.Specifically, UE first judges whether itself needs before the first data are sentConnected state is switched to, oneself state is adjusted further according to judged result, finally send described the to base station with the state after adjustmentOne data, it is possible thereby to realize the transmission of the upstream data between UE and base station.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings to the present inventionSpecific embodiment explain.
Reference picture 2, the embodiment of the invention provides a kind of transmission method of data, and methods described is applied under inactive stateUE and base station between transmit data.In specific implementation, base station can indicate UE by way of sending RRC signaling to UEInto inactive state.Base station can also be the restricted area of the UE configuration inactive states of application, such as, one or more cells.UEInactive state can be applied in the restricted area that base station is configured, once UE leaves restricted area, UE need to notify base station orPerson voluntarily switches to Idle state.
Can be adopted under inactive state, between UE and base station and transmit upstream data with the following method：
Whether step 21, the UE judges itself need to switch to connected state before the first data are sent.
When UE be in inactive state when, to base station send the first data before, it is necessary to judge whether itself needs the company of switching toConnect state.
In specific implementation, can judge itself whether need to switch to connected state using various ways.Of the inventionIn one embodiment, can be by judging whether the data volume of first data judges more than default first data-quantity thresholdWhether itself will switch to connected state.Wherein, default first data-quantity threshold can be by those skilled in the art according to non-The factor such as translational speed of the data transmission capabilities of UE, UE determines under activated state.That is, UE is before the first data are sent,Needs determine the need for switching to connected state according to the data transmission capabilities under current state, translational speed.First dataAmount threshold value can be set by base station, or agreement can preset the threshold value, when the data volume of the first data is more than presetting theDuring one data-quantity threshold, judge itself to need to switch to connected state.When the data volume of the first data is less than or equal to default first numberDuring according to amount threshold value, maintain from as inactive state.
It should be noted that in specific implementation, the first data-quantity threshold sheet is as one side dividing value.Described firstWhen the data volume of data is equal to first data-quantity threshold, the UE can be determined that itself to be needed to switch to connected state, also may be usedTo judge that itself connected state need not be switched to.Specifically how to judge, can be by those skilled in the art's sets itself.But anywayJudge, not enough into limitation of the present invention, and within protection scope of the present invention.
In another embodiment of the invention, the UE is judged by judging whether first data are continuously generatedItself whether need to switch to connected state.When the first data can be continuously generated, such as UE can periodically generate the first data, thisWhen UE judge itself to need to switch to connected state, otherwise UE maintains inactive state.
Step 22, the UE adjusts the state of itself according to judged result, and is sent out to the base station with the state after adjustmentSend first data.
In specific implementation, when UE judges that itself needs to switch to connected state, then after itself being switched into connected state, withConnected state sends the first data to the base station.Wherein, UE needs to be handed over base station during switching to connected state by current stateMutual signaling, obtain after the confirmation of base station could successful switch to connected state.When UE is maintained from as inactive state, with inactiveState sends the first data to base station.
In specific implementation, no matter the UE is in connected state or inactive state, in order to the treatment for reducing base station is complicatedDegree and raising efficiency of transmission, UE after uplink synchronous are obtained, then can send first data to the base station.AlsoIt is to say, before first data are sent, UE can be obtained and the uplink synchronous between the base station.UE obtains uplink synchronousThe first data are retransmited afterwards, can be enabled that the signal of UE transmissions is complete and be fallen in the reception window of base station.Certainly, in UEWhen only needing to send low volume data, UE can send the signal of information redundancy to base station, and base station only needs to receive in reception windowPart signal can solve the data of UE transmissions, and be obtained and the uplink synchronous between base station before need not sending the first data.It is understood that specifically before the first data are sent, whether UE obtains the uplink synchronous and base station between, not paired enoughLimitation of the invention, and within protection scope of the present invention.
In one embodiment of this invention, when UE send the first data before not with base station uplink synchronous when, Ke YiyouBefore base station sends the first data under the inactive states of UE, corresponding shared data is configured by system message or dynamic dispatching and is passedDefeated resource so that the UE can utilize the shared data transmission resource being pre-configured with, in situation not with base station uplink synchronousThe first data of lower transmission.Wherein, the shared data transmission resource can by base station according in inactive state UE quantity withAnd the water load equality factor of current area is configured, and is not restricted specifically, as long as UE can utilize the shared data transmissionThe data of resource transmission first.During dynamic dispatching configuration shared data transmission resource, physical down control can be passed through by base stationSignaling processed indicates the shared transfer resource.
In specific implementation, in order to avoid wasting Internet resources, after first data are sent to base station with connected state,Whether UE can also judge need to transmit other data in Preset Time.When UE needs to transmit other data in Preset Time,Then maintain, from as connected state, the request for switching to inactive state otherwise to be sent to base station, switched to according to by base station non-The request of activated state notifies that UE enters inactive state.
Fig. 3 is the transmission method flow chart of another data provided in an embodiment of the present invention.Reference picture 3, methods described canTo comprise the following steps：
Whether step 31, the UE judges itself need to switch to connected state before the first data are sent.
On step 31, the above-mentioned description on step 21 is specifically referred to, here is omitted.
Step 32, UE adjusts the state of itself according to judged result.
In specific implementation, when UE judges that itself needs to switch to connected state, then (UE after connected state itself will be switched toWhether switching to connected state needs to obtain the confirmation of base station), otherwise maintain from as inactive state.
Step 33, obtains and the uplink synchronous between the base station.
In specific implementation, can be obtained using various ways and the uplink synchronous between base station, be not restricted specifically.
In one embodiment of this invention, can be obtained and the base station between by way of initiating Stochastic accessingUplink synchronous.
Specifically, when UE is maintained from as inactive state, can be sent to the base station during Stochastic accessingThe identification information of itself, base station can be in the UE distribution by dynamic dispatching after the identification information for receiving the UERow transfer resource so that the UE can utilize distributed uplink transmission resource to send the first data to base station.In the first numberAfter according to end of transmission, the UE can again interrupt the communication and base station between, and remain under inactive state.Wherein, it is describedThe identification information of UE is sent by the MSG3 in random access procedure.
When UE switches to connected state, the identification information of itself can be sent to the base station during Stochastic accessingAnd the information that RRC connections recover, recover and the RRC connections between the base station, while obtaining up and the base station betweenIt is synchronous.Wherein, the information that the identification information of the UE and RRC connections recover can be by the MSG3 in random access procedure (i.e.Article 3 signaling) send.
Step 34, first data are sent with the state after adjustment to the base station.
In specific implementation, when UE judges that itself needs to switch to connected state, then after itself being switched into connected state, withConnected state sends the first data to the base station.When UE is maintained from as inactive state, the is sent to base station with inactive stateOne data.Wherein, UE sends connection and recovers message and obtain base station when connected state is switched to by current state, typically in UEAfter confirmation, connected state is just switched to.
Fig. 4 is another data transmission method provided in an embodiment of the present invention, and methods described is equally applicable to inactive stateUnder user terminal and base station between transmit data.In specific implementation, base station can be by the side to UE transmission RRC signalingsFormula, indicates UE to enter inactive state.Base station can also be the restricted area of the UE configuration inactive states of application, such as, one or manyIndividual cell.UE can apply inactive state in the restricted area that base station is configured, once UE leaves restricted area, UE needs logicalKnow base station or voluntarily switch to Idle state.
Under inactive state, can adopt and transmit downlink data with the following method：
Step 41, when the notification message of the transmission data that the base station sends is received, UE sends phase to the base stationThe feedback message answered.
Wherein, whether the identification information of the UE can be included in the notification message and the UE is indicated in current stateReceive the configured information of the second data.
When base station needs to send data to the UE under inactive state, the notice of transmission data is first sent to the UEMessage.UE sends corresponding feedback message when the notification message is received to the base station.
In specific implementation, the notification message can be the message of bearing call signaling, or what is newly introduced disappearsBreath, is not restricted specifically.
In the notification message, whether base station can indicate UE current by the configured information using various waysState receives the second data.In one embodiment of this invention, it is described to indicate whether the UE receives the second data in current stateWhat configured information can be determined by base station according to the data volume size of second data, such as, when the number of second dataDuring according to amount more than default second data-quantity threshold, indicate the user terminal that institute is received under connected state by the configured informationThe second data are stated, otherwise indicates the user terminal that second data are received under current state.
Wherein, default second data-quantity threshold can be by those skilled in the art according to the data of UE under inactive stateThe factors such as transmittability determine.That is, base station before the second data are sent to UE, it is necessary to number according to UE under current stateIndicate whether UE needs to switch to connected state according to transmittability.
It should be noted that in specific implementation, the second data-quantity threshold sheet is as one side dividing value.Described secondWhen the data volume of data is equal to second data-quantity threshold, base station can indicate UE to receive the second data in current state, also may be usedTo indicate UE to receive the second data in connected state.Specifically whether indicate UE that the second data are received under current state, can be by abilityDomain personnel's sets itself.But indicate anyway, not enough into limitation of the present invention, and protection scope of the present invention itIt is interior.
Step 42, UE receives second data that the base station sends according to the feedback message.
In specific implementation, no matter the UE is in connected state or inactive state, and UE would generally first obtain uplink synchronous,The second data are sent to base station so that what the signal that UE sends can be complete falls in the reception window of base station, reduce base station againTreatment complexity and raising efficiency of transmission.Certainly, in the case where ensureing effectively to receive, UE need not be obtained and base station in advanceBetween uplink synchronous, now, the feedback message is the configured information that the user terminal sends when up asynchronous, baseStand and can know that UE need not obtain uplink synchronous and data can be transmitted according to the feedback message.Such as, UE can send letterThe signal of redundancy is ceased to base station, it is only necessary to which part signal just can obtain complete information by the reception window reception of base station, base station.It is understood that specifically before the second data are received, whether UE obtains the uplink synchronous and base station between, not paired enoughLimitation of the invention, and within protection scope of the present invention.
In one embodiment of this invention, the UE can send feedback message by Stochastic accessing to the base station, alsoCan be obtained by Stochastic accessing and the uplink synchronous between the base station, i.e., in the base station send feedback information and acquirementRow is synchronous to be carried out simultaneously.When base station finds that UE needs to obtain uplink synchronous, that is, think that UE is fed back.Afterwards, base station canSignalling exchange is carried out with the UE, after the UE obtains uplink synchronous, then the second data is sent to the UE.
In one embodiment of this invention, before UE of the base station under to inactive state sends the second data, can be advanceIt is configured to carry the particular sequence of the feedback message by system message or the notification message.When UE need not be obtainedDuring uplink synchronous between base station, configured particular sequence can be passed through to described after the notification message is receivedBase station feedback, the base station after the feedback for receiving UE, by the second data is activation to the UE.Wherein, the particular sequenceCan be the reference signals such as Preamble (i.e. particular sequence), not be restricted specifically, as long as the feedback information can be fed backTo the base station.
In specific implementation, base station can simultaneously configure multiple particular sequences for the feedback of UE, it is also possible to only configure oneIndividual particular sequence is used for the feedback of UE.When base station is configured with multiple particular sequences is fed back for UE, base station is except described logicalKnow whether the mark and the UE of instruction UE in message are received outside the second data in current state, also need to indicate the mark of these sequencesKnow.If base station only configures a particular sequence fed back for UE, base station need not indicate the spy in the notification messageThe mark of sequencing row, need to only indicate whether the mark and the UE of UE receive the second data in current state.
When the current state of UE is inactive state, that is, UE is indicated to receive the second data in inactive state, UE can be randomSend the identification information of itself during access to the base station by MSG3, base station is receiving the identification information of the UEAfterwards, the second data can be sent to the UE by descending scheduling.
When the current state of UE is connected state, that is, UE is indicated to receive the second data in connected state, UE can be in Stochastic accessingDuring by MSG3 to the base station send itself identification information and RRC connect recover information, recover and the baseBetween standing RRC connection, and then UE obtain and the base station between uplink synchronous after, to the UE send the second data.
Fig. 5 is a kind of data transmission method provided in an embodiment of the present invention, and methods described may include steps of：
Whether step 51, the UE judges itself need to switch to connected state before the first data are sent.
Step 52, the UE adjusts the state of itself according to judged result, and is sent out to the base station with the state after adjustmentSend first data.
Step 53, the UE sends out when the notification message of the transmission data that the base station sends is received to the base stationSend corresponding feedback message.
Step 54, receives second data that the base station sends according to the feedback message.
On step 51 and 52, parameter can be distinguished above-mentioned to step 21 and 22 description.Can be with step 53 and 54Respectively refer to above-mentioned to step 41 and 42 description.
Wherein, step 51 and 52 UE being used under inactive state and the transmission of upstream data is carried out between base station.Step 53And 54 the UE being used under inactive state and carry out the transmission of downlink data between base station.It is understood that for same UE,Upstream data, or transmission downlink data are either transmitted, corresponding steps are on execution sequence in the absence of limitation.In other words,When UE needs to transmit upstream data and base station between, data transfer can be implemented using step 51 and 52.When UE needs and baseWhen transmitting downlink data between standing, data transfer can be implemented using step 53 and 54.Which step is specifically performed, by UE and baseThe demand stood determines.
Such as, when UE sends data to base station first, step 51 and 52 are performed, if after execution terminates, UE is inInactive state, when certain time needs to send data to UE after when base station, can continue executing with step 53 and 54.If UEAfter data are sent to base station, inactive state is no longer on, does not then perform step 53 and 54.
Certainly, during carrying out transmitting uplink data between UE under inactive state and base station, after UE is to adjustBefore state sends the first data to base station, the uplink synchronous and base station between can also be first obtained, afterwards again with the shape after adjustmentState sends the first data to base station.Particularly with regard to the uplink synchronous how obtained and base station between, it is referred to above-mentioned to step33 description is implemented, and here is omitted.
Fig. 6 is the transmission method flow chart of another data provided in an embodiment of the present invention, and methods described is applied to non-sharpData are transmitted between UE and base station under state living.Reference picture 6, methods described may include steps of：
Step 61, the notification message of transmission data is sent to the UE under inactive state.
In specific implementation, when base station needs to send data to the UE under inactive state, first sent to the UETransmit the notification message of data.Wherein, whether the notification message includes the identification information of the UE and indicates the UEThe configured information of the second data is received in current state.UE sends corresponding when the notification message is received to the base stationFeedback message.
In specific implementation, the notification message can be the message of bearing call signaling, or what is newly introduced disappearsBreath, is not restricted specifically.
In the notification message, can indicate whether UE connects in current state using various ways by the configured informationThe second data are received, such as, whether the instruction UE can be determined according to the data volume size of second data by base stationThe configured information of the second data is received in current state.Specifically, can be in the data volume of second data more than default secondDuring data-quantity threshold, indicate the user terminal that second data are received under connected state by the configured information, otherwiseIndicate the user terminal that second data are received under current state.Wherein, default second data-quantity threshold can be byThose skilled in the art determine according to the factor such as data transmission capabilities of UE under inactive state.
It should be noted that in specific implementation, the second data-quantity threshold sheet is as one side dividing value.Described secondWhen the data volume of data is equal to second data-quantity threshold, base station can indicate UE to receive the second data in current state, also may be usedTo indicate UE to receive the second data in connected state.Specifically whether indicate UE that the second data are received under current state, can be by abilityDomain personnel's sets itself.But indicate anyway, not enough into limitation of the present invention, and protection scope of the present invention itIt is interior.
Step 62, when the feedback message that the UE sends is received, institute is sent according to the feedback message to the UEState the second data.
In specific implementation, UE can adjust itself after the notification message is received according to the notification messageState.No matter the state after UE adjustment is connected state or inactive state, and UE would generally first obtain uplink synchronous, then to baseStand and send the second data so that what the signal that UE sends can be complete falls in the reception window of base station, the treatment for reducing base station is answeredMiscellaneous degree and raising efficiency of transmission.Certainly, in the case where ensureing effectively to receive, UE need not be obtained and base station between in advanceUplink synchronous, now, the feedback message is the configured information that the user terminal sends when up asynchronous, base station according toThe feedback message can know that UE need not obtain uplink synchronous and data can be transmitted.Such as, UE can send information redundancySignal to base station, it is only necessary to by the reception window reception of base station, base station just can obtain complete information to part signal.Can manageWhether solution, the uplink synchronous and base station between are obtained especially by the feedback message, not paired enough limit of the inventionSystem, and within protection scope of the present invention.
In one embodiment of this invention, the UE can send feedback message by Stochastic accessing to the base station, alsoCan be obtained by Stochastic accessing and the uplink synchronous between the base station, i.e., in the base station send feedback information and acquirementRow is synchronous to be carried out simultaneously.When base station finds that UE needs to obtain uplink synchronous, that is, think that UE is fed back.Afterwards, base station canSignalling exchange is carried out with the UE, after the UE obtains uplink synchronous, then the second data is sent to the UE.
In one embodiment of this invention, before UE of the base station under to inactive state sends the second data, can be advanceParticular sequence is configured by system message or the notification message, for the feedback of UE, i.e., described feedback message is base stationThe particular sequence being pre-configured with.When UE need not obtain the uplink synchronous and base station between, the notice can receivedAfter message, pass through configured particular sequence to the base station feedback, the base station counts after the feedback for receiving UE by secondAccording to transmission to the UE.Wherein, the particular sequence can be the reference signals such as Preamble (i.e. particular sequence), not make specificallyLimitation, as long as the feedback information can be fed back into the base station.
In specific implementation, base station can simultaneously configure multiple particular sequences for the feedback of UE, it is also possible to only configure oneIndividual particular sequence is used for the feedback of UE.When base station is configured with multiple particular sequences is fed back for UE, base station is except described logicalKnow whether the mark and the UE of instruction UE in message are received outside the second data in current state, also need to indicate the mark of these sequencesKnow.If base station only configures a particular sequence fed back for UE, base station need not indicate the spy in the notification messageThe mark of sequencing row, need to only indicate whether the mark and the UE of UE receive the second data in current state
When the current state of UE is inactive state, that is, UE is indicated to receive the second data in inactive state, UE can be randomSend the identification information of itself during access to the base station by MSG3, base station is receiving the identification information of the UEAfterwards, the second data can be sent to the UE by descending scheduling.
When the current state of UE is connected state, that is, UE is indicated to receive the second data in connected state, UE can be in Stochastic accessingDuring by MSG3 to the base station send itself identification information and RRC connect recover information, recover and the baseBetween standing RRC connection, and then UE obtain and the base station between uplink synchronous after, to the UE send the second data.
Fig. 7 is the signaling interaction diagram of data transfer in the embodiment of the present invention.Reference picture 7, whole data transmission procedure can be withComprise the following steps：
Step 71, base station sends the notification message of transmission data to UE.
Wherein, whether the identification information of the UE can be included in the notification message and the UE is indicated in current stateReceive the configured information of the second data.
In one embodiment of this invention, the configured information for indicating the UE whether the second data are received in current stateCan be determined according to the data volume size of second data by base station, such as, when the data volume of second data is more thanDuring default second data-quantity threshold, indicate the user terminal that second number is received under connected state by the configured informationAccording to, otherwise indicate the user terminal that second data are received under current state.
Step 72, UE sends corresponding feedback message to base station.
In one embodiment of this invention, the UE can by the feedback message to base station feedback need not obtain withUplink synchronous between the base station.
In another embodiment of the invention, the feedback information is uplink synchronization request information.
In specific implementation, the uplink synchronization request information can be sent out in the random access procedure that the UE is initiatedSend.
Step 73, base station sends the second data to UE.
Whether step 74, UE judges itself need to switch to connected state before the first data are sent.
In one embodiment of this invention, can be by judging the data volume of first data whether more than default firstData-quantity threshold judges whether itself will switch to connected state.When the data volume of the first data is more than default first data volumeDuring threshold value, judge itself to need to switch to connected state.When the data volume of the first data is less than or equal to default first data-quantity thresholdWhen, maintain from as inactive state.
In another embodiment of the invention, the UE is by judging whether first data are continuously generated, when firstWhen data can be continuously generated, such as UE can periodically generate the first data, and now UE judges itself to need to switch to connected state, noThen UE maintains inactive state.
Step 75, UE adjusts the state of itself according to judged result.
Step 76, obtains and the uplink synchronous between base station.
In specific implementation, UE can be obtained and the uplink synchronous between base station by Stochastic accessing.Certainly, ensureing haveIn the case that effect is received, the uplink synchronous that UE can not also be obtained and base station between send data to base station.
Step 77, the first data are sent to the base station.
On step 71 to 73, specifically it is referred to the above-mentioned description to step 41 and 42 and implements.On step 74To 77, specifically it is referred to the above-mentioned description to step 31 to 34 and implements.
As shown in the above, in the embodiment of the present invention data transmission method, not only realize under inactive state UE withTransmitting uplink data between base station, also achieves the downlink data transmission between UE and base station under inactive state.Using describedData transmission method, can save substantial amounts of Signalling exchange during data transfer, improve data transmission efficiency.
In order that those skilled in the art more fully understand and realize the present invention, the transmission method to above-mentioned data enters belowRow is described in detail.
Reference picture 8, the embodiment of the invention provides a kind of user terminal 80, and the user terminal 80 is suitable under inactive stateData are transmitted between base station.Specifically the user terminal 80 can include：First judging unit 81, first state adjustment is singleThe data transmission unit 83 of unit 82 and first.Wherein：
Whether first judging unit 81, is suitable to before the first data are sent, and judges itself need to switch to connected state；
The first state adjustment unit 82, is suitable to adjust itself according to the judged result of first judging unit 81State；
First data transmission unit 83, is suitable to send first data to base station with the state after adjustment.
In specific implementation, first judging unit 81 is suitable to the data volume when first data more than default firstDuring data-quantity threshold, judge itself to need to switch to connected state, otherwise maintain from as inactive state.
In specific implementation, first judging unit 81 is suitable to, when first data are continuously generated, judge itselfNeed to switch to connected state, otherwise maintain from as inactive state.
In specific implementation, the user terminal 80 can also include：Synchronization unit 84, is suitable to be sent out in first dataBefore sending unit 83 to send first data to base station with the state after adjustment, obtain up same and the base station betweenStep.
In specific implementation, the synchronization unit 84 is suitable to by way of initiating Stochastic accessing, obtains and the base stationBetween uplink synchronous.
In specific implementation, the synchronization unit 84 is suitable to when needing to switch to connected state, in the process of Stochastic accessingThe information that middle identification information and the RRC connection for sending itself to the base station recovers, recovers and the RRC between the base station connectsConnect, obtain and the uplink synchronous between the base station.
In specific implementation, first data transmission unit 83 is suitable to match somebody with somebody with the state after adjustment and using the base stationThe shared data transmission resource put, first data are sent to base station.
In specific implementation, the shared data transmission resource be by the base station under the inactive state of the user terminalBefore sending the first data, configured by system message or dynamic dispatching.
In one embodiment of this invention, the user terminal 80 can also include：Second judging unit 85 and secondState adjustment unit 86.Wherein：
Second judging unit 85, is suitable to after first data are sent to base station with connected state, when judging defaultIt is interior whether to need to transmit other data；
Second state adjustment unit 86, is suitable to be sent to base station the request for switching to inactive state, by the base stationNotify that the UE enters inactive state according to the request for switching to inactive state.
Reference picture 9, the embodiment of the present invention additionally provides another user terminal 90, and the user terminal 90 is suitable to inactiveData are transmitted under state between base station.Specifically, the user terminal 90 can include：The data of feedback unit 91 and first connectReceive unit 92.Wherein：
The feedback unit 91, is suitable to when the notification message of the transmission data that the base station sends is received, to describedBase station sends corresponding feedback message, and the notification message includes the identification information of the user terminal and indicates the useWhether family terminal receives the configured information of data in current state；
First data receipt unit 92, is suitable to receive the second number that the base station sends according to the feedback messageAccording to.
In specific implementation, the indicating user terminal whether current state receive the second data configured information be by baseStand what is determined according to the data volume size of second data.
In specific implementation, when the data volume of second data is more than default second data-quantity threshold, the instructionInformation indicates the user terminal that second data are received under connected state, otherwise the instruction user terminal is under current stateReceive second data.
In specific implementation, the feedback message that the feedback unit 92 sends is the user terminal when up asynchronousThe configured information of transmission.
In specific implementation, the configured information that the user terminal sends when up asynchronous be by system message orThe notification message configuration.
In specific implementation, the feedback message that the feedback unit 92 sends is the specific sequence that the base station is pre-configured withRow.
In specific implementation, the feedback unit sends described anti-in the random access procedure that the user terminal is initiatedFeedback message.
Reference picture 10, the embodiment of the present invention additionally provides another user terminal 1, and the user terminal 1 can include：TheOne judging unit 11, first state adjustment unit 12, the first data transmission unit 13, the data receiver of feedback unit 14 and firstUnit 15.Wherein：
Whether first judging unit 11, is suitable to before the first data are sent, and judges itself need to switch to connected state；
The first state adjustment unit 12, is suitable to adjust itself according to the judged result of first judging unit 11State；
First data transmission unit 13, is suitable to send first data to base station with the state after adjustment；
The feedback unit 14, is suitable to when the notification message of the transmission data that the base station sends is received, to describedBase station sends corresponding feedback message, and the notification message includes the identification information of the user terminal and indicates the useWhether family terminal receives the configured information of data in current state；
First data receipt unit 15, is suitable to receive the second number that the base station sends according to the feedback messageAccording to.
On the first judging unit 11, first state adjustment unit 12, data transmission unit 13, feedback unit 14 andOne data receipt unit 15, can respectively refer to above-mentioned to the first judging unit 71, first state adjustment unit 72, data is activationUnit 73, the description of the data receipt unit 82 of feedback unit 81 and first is implemented, and here is omitted.
In specific implementation, the user terminal 1 can also include：Synchronization unit 16, is suitable in the data is activation listBefore unit sends first data with the state after adjusting to base station, obtain and the uplink synchronous between the base station.SpecificallyThe above-mentioned description to synchronization unit 74 is referred to, implements the synchronization unit 16.
In specific implementation, the user terminal 1 can also include：Second judging unit 17 and the adjustment of the second state are singleUnit 18, wherein：
Second judging unit 17, is suitable to after first data are sent to base station with connected state, when judging defaultIt is interior whether to need to transmit other data；
Second state adjustment unit 18, is suitable to judge to need transmission in Preset Time when second judging unitDuring other data, maintain from as connected state；Otherwise control itself to switch to inactive state.
Reference picture 11, the embodiment of the present invention additionally provides a kind of base station 120, and the base station 120 can include：
Notification unit 121, is suitable to be sent to the UE under inactive state the notification message of transmission data, in the notification messageWhether identification information and the instruction UE including the user terminal receive the configured information of the second data in current state；
Second data receipt unit 122, is suitable to receive the feedback message that the UE sends；
Second data transmission unit 123, is suitable to, when the feedback message that the UE sends is received, be disappeared according to the feedbackCease and send second data to the UE.
In specific implementation, the notification unit 121 is suitable to according to the data volume size of second data determinesWhether UE receives the configured information of data to be transmitted in current state.
In specific implementation, the notification unit 121 is suitable to the data volume when second data more than default second numberDuring according to amount threshold value, indicate the UE that second data are received under connected state by the configured information, otherwise indicate describedUE receives second data under current state.
In specific implementation, the feedback message that second data receipt unit 122 is received be the UE it is up notThe configured information sent when synchronous.
In specific implementation, the instruction sent when up asynchronous that second data receipt unit 122 is receivedInformation, is configured by system message or the notification message.
In specific implementation, the feedback message that second data receipt unit 122 is received is that the base station 120 is advanceThe particular sequence of configuration.
In specific implementation, second data transmission unit 123 is suitable to when the feedback message is received, with instituteStating UE carries out Signalling exchange, after the UE obtains uplink synchronous, second data is sent to the UE.
In specific implementation, the feedback message that second data receipt unit 122 is received is that the UE is being initiatedSent in random access procedure.
In specific implementation, second data transmission unit 123 is suitable to when the RRC connections for receiving the UE transmissionsDuring the information of recovery, recover RRC with the UE and be connected, second data are sent to the UE under connected state.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is canCompleted with instructing the hardware of correlation by program, the program can be stored in a computer-readable recording medium, storageMedium can include：ROM, RAM, disk or CD etc..
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art, are not departing from thisIn the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim instituteThe scope of restriction is defined.