CN104010368B - TDD configures update method, apparatus and system - Google Patents

TDD configures update method, apparatus and system Download PDF

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Publication number
CN104010368B
CN104010368B CN201310055963.7A CN201310055963A CN104010368B CN 104010368 B CN104010368 B CN 104010368B CN 201310055963 A CN201310055963 A CN 201310055963A CN 104010368 B CN104010368 B CN 104010368B
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mac
tdd
terminal
uplink
downlink
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CN104010368A (en
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姚君
郝鹏
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ZTE Corp
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ZTE Corp
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Abstract

The invention discloses a kind of TDD to configure update method, apparatus and system, wherein this method comprises: terminal, which receives TDD, reconfigures notice MAC CE, wherein the information comprising instruction TDD configuration in the MAC CE；Terminal is fed back in designated position, and the scheduled duration after receiving the MAC CE, and the TDD indicated in the MAC CE is begun to use to configure.Through the invention, the update mode for solving TDD configuration in the related technology leads to the problem that updating not in time, improves the update efficiency of TDD configuration, improves the communication resources utilization ratio of TDD system.

Description

TDD configures update method, apparatus and system
Technical field
The present invention relates to the communications fields, in particular to a kind of time division duplex (Time Division Duple, abbreviation Update method, apparatus and system are configured for TDD).
Background technique
Current long term evolution (Long Term Evolution, referred to as LTE) technology, micro-wave access to global intercommunication (Worldwide Interoperability for Microwave Access, referred to as WiMAX), super mobile broadband All there are two types of duplex modes for (Ultra Mobile Broadband, referred to as UMB) system: frequency division duplex (Frequency Division Duplex, referred to as FDD) mode and TDD mode.Under FDD mode, Uplink/Downlink uses different frequency bands Carry out data transmission simultaneously, and under TDD mode, Uplink/Downlink is carried out data transmission using identical frequency band timesharing.
In the wireless system carried out data transmission with radio frames (Radio Frame) for unit, radio open transmission Uplink/Downlink is usually that transmission data are carried out as unit of radio frames, wherein each radio frames are by several subframes (Subframe) it forms.For LTE system, subframe is with orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, referred to as OFDM) symbol (Symbol) be basic unit composition, each radio frames are by 10 Subframe composition.
The resource allocation of the uplink/downlink subframe of FDD system is relatively independent, it can to downlink subframe and sub-frame of uplink Resource allocation is carried out respectively.Several subframes by radio frames according to a certain percentage can be needed according to business in TDD system It is divided into sub-frame of uplink and downlink subframe, the ratio of general TDD system sub-frame of uplink and downlink subframe number has several species, with Meets the needs of different service types.According to the demand of different regions type of service, uplink and downlink proportional arrangement appropriate is selected to have Conducive to the spectrum efficiency for improving TDD system.For example, area more for downloading data business, so that it may select downlink sub Configuration more than frame；For uploading the more area of business, so that it may select the more configuration of sub-frame of uplink；For upper downloading Portfolio compares the area of balance, so that it may select the almost identical proportional arrangement of ascending-descending subframes.
Current LTE TDD(abbreviation TD-LTE) in system, 7 kinds of modes are set to the uplink-downlink configuration of TDD system, this In be known as TDD uplink/downlink configuration identifier, table 1 is the uplink/downlink configured list in TD-LTE system in the related technology, such as table 1 Shown in first row, a radio frames contain 10 subframes, and subframe numbers are respectively labeled as: 0,1,2,3,4,5,6,7,8,9, In, " D " indicates that the subframe is downlink subframe；" U " indicates that the subframe is sub-frame of uplink；" S " indicates that the subframe is special subframe, i.e., The subframe contains downlink transfer part, protection interval and uplink part.Such as when TDD uplink/downlink configuration identifier be 1, It is downlink subframe that i.e. TDD uplink/downlink, which configures the 0,4,5,9th work song frame in 1: one radio frames,；1,6th work song frame is special son Frame；2,3,7,8th work song frame is sub-frame of uplink.
Table 1
As it can be seen from table 1 downlink transfer can account for the percentage of time of all transmission from 40% to 90%, it is such it is upper/ Downlink subframe ratio setting mainly considers that downstream data traffic is typically more than upstream data service in multimedia service till now The characteristics of.
In current LTE technology, network side by system information block (System Information Block, referred to as SIB) 1 message broadcasts the TDD uplink-downlink configuration of this cell.Wherein, the transmission cycle of SIB1 is 80ms, also, small in order to guarantee Area edge user's is properly received, and can be repeated 3 times identical transmission in a transmission cycle.In the prior art, in addition to ground Shake and typhoon warning system (Earthquake and Tsunami Warning System, ETWS) and commercial mobile telephone are alert Service (Commercial Mobile Alert Service, CMAS) is accused, network side can only could change in specific radio frames System information.Fig. 1 is that system information changes schematic diagram in the TD-LTE system according to the relevant technologies, as shown in Figure 1, at n-th Broadcast control channel (Broadcast Control Channel, BCCH) change cycle, i.e., in BCCH change cycle (n), if Hatching styles are that system information represented by nicking will change in (n+1)th BCCH change cycle, become shade class Type is dotted represented system information, then network side needs to notify some system information of UE during BCCH change cycle (n) It will change in next BCCH change cycle, instruction UE is ready to start to receive in next BCCH change cycle The system information of update.Therefore, when network side needs to change system information, can only change in the boundary of BCCH change cycle, And it needs to inform that UE system message will change in next BCCH change cycle using paging message in advance.But During this, not in time due to uplink-downlink configuration change, actually downlink business ratio and currently used TDD or more may cause The unmatched situation of row subframe ratio.For example, current area uses TDD uplink-downlink configuration 4, ascending-descending subframes ratio is 1:4, if Intra-cell uplink business increases in certain period, then may cause uplink service since ascending resource not enough postpones, and lead Cause part downlink resource idle, so as to cause downlink resource waste.
Lead to the problem that updating not in time for the update mode of the configuration of TDD in the related technology, not yet mentions at present Effective solution scheme out.
Summary of the invention
Cause the problem that updating not in time for the update mode of the configuration of TDD in the related technology, the present invention provides A kind of TDD configures update method, apparatus and system, at least to solve the above problems.
According to an aspect of the invention, there is provided a kind of TDD configures update method, comprising: terminal (User Equipment, referred to as UE) receive TDD reconfigure notice media access control (Medium Access Control, referred to as MAC) control element (Control Element, referred to as CE), wherein the letter comprising instruction TDD configuration in the MAC CE Breath；The terminal is fed back in designated position, and the scheduled duration after receiving the MAC CE, is begun to use described The TDD configuration indicated in MAC CE.
Preferably, the information comprising instruction TDD configuration in the MAC CE includes: in the MAC CE comprising TDD up/down Row configuration serial number.
Preferably, further include at least one of in the MAC CE: indicating the information of the scheduled duration；For identifying Whether the MAC CE is the marker sent for the first time；UL Grant is used to indicate the designated position.
Preferably, the designated position includes at least one of: the MAC CE that the end-on receives is carried out The position of hybrid automatic repeat-request (Hybrid Automatic Repeat Request, referred to as HARQ) feedback；The UL The position of Grant instruction；The position of default sub-frame of uplink.
Preferably, the UL Grant indicates the rule of the designated position and according to the UL in random access response Grant determines that rule used in the position of scheduled transmission is identical.
Preferably, the scheduled duration determines at least one in the following manner: predefining the scheduled duration；According to The information for the instruction scheduled duration for including in the MAC CE determines the scheduled duration.
Preferably, in the terminal before designated position is fed back, further includes: the terminal obtains the MAC CE The domain R of corresponding MAC subheader, wherein whether the domain R of the corresponding MAC subheader of the MAC CE is used to be first to the MAC CE Secondary transmission is identified.
Preferably, in the terminal before designated position is fed back, further includes: the terminal receives DCI, wherein The DCI includes for identifying the MAC CE for including and instruction TDD configuration in the information transmitted on current PDSCH Information whether be the identification information sent for the first time.
Preferably, after the terminal receives DCI, further includes: identify the letter of the instruction TDD configuration in the DCI Breath is not HARQ feedback corresponding to the MAC CE that the terminal does not transmit and receive in the case where sending for the first time.
Preferably, if the terminal receives the MAC CE for the first time in current RRC connection, the terminal execute with At least one lower limitation: physical layer descending measurement is limited on preset downlink subframe and executes by the terminal；The terminal will Periodical CQI/PMI/RI/SRS transmission, which is limited on preset sub-frame of uplink, to be executed；If the subframe of SPS downlink transmission becomes Sub-frame of uplink, then the SPS downlink transmission that the terminal skips the subframe receives, alternatively, the terminal is in the sub-frame of uplink Described in the identical downlink of the nearest downlink subframe or nearest default downlink subframe assignment position DL assignment receives afterwards SPS downlink transmission；If the subframe of SPS uplink becomes downlink subframe, the terminal is passed without the SPS uplink The identical UL of defeated or described terminal sub-frame of uplink nearest after the downlink subframe or nearest default sub-frame of uplink The position Grant carries out the SPS uplink.
Preferably, before terminal reception TDD reconfigures notice MAC CE, further includes: the terminal reception is used to indicate The first enabled signaling of the TDD configuration update method.
Preferably, first signaling is carried using MAC CE or RRC signaling.
Preferably, it is received after TDD reconfigures notice MAC CE in terminal, further includes: receive described the in the terminal In the case where one signaling, the terminal executes at least one following limitation: physical layer descending measurement is limited to pre- by the terminal If downlink subframe on execute；Periodical CQI/PMI/RI/SRS transmission is limited on preset sub-frame of uplink and holds by the terminal Row；If the subframe of SPS downlink transmission becomes sub-frame of uplink, the SPS downlink transmission that the terminal skips the subframe is received, Alternatively, the identical DL of terminal downlink subframe nearest after the sub-frame of uplink or nearest default downlink subframe The position assignment receives the SPS downlink transmission；If the subframe of SPS uplink becomes downlink subframe, the end Hold the sub-frame of uplink or recently pre- nearest after the downlink subframe without the SPS uplink or the terminal If the position identical UL Grant of sub-frame of uplink carries out the SPS uplink.
Preferably, after the terminal receives and is used to indicate the first enabled signaling of the TDD configuration update method, also It include: in the case where the terminal executes random access procedure and the terminal receives RAR, the terminal disappears according to system The TDD uplink/downlink configuration notified in breath or RRC reconfiguration message sends scheduled transmission.
Preferably, after the terminal executes at least one above-mentioned limitation, further includes: the terminal is being received for referring to In the case where showing that TDD configuration updates the second signaling terminated, the limitation that the terminal cancels.
Preferably, second signaling is carried using MAC CE or RRC signaling.
Preferably, the terminal in designated position carries out feedback to include: the terminal sends in the designated position to MAC The HARQ feedback of PDU, wherein the MAC PDU is the MAC PDU where the MAC CE received；Alternatively, the terminal The MAC layer signaling for indicating to be properly received the MAC CE is sent to network side.
Preferably, the scheduled duration is less than the BCCH change period.
According to another aspect of the present invention, a kind of TDD configuration update method is provided, comprising: network side sends TDD reconfiguration Set notice MAC CE, wherein the information comprising instruction TDD configuration in the MAC CE；The network side is received in designated position The feedback of the MAC CE is properly received to terminal, then the network side confirms the terminal after receiving the MAC CE Scheduled duration, begin to use the TDD indicated in the MAC CE configure.
Preferably, the feelings that terminal is properly received the feedback of the MAC CE are not received in designated position in the network side Under condition, the method also includes: network side decides whether to retransmit the MAC CE.
Preferably, the information comprising instruction TDD configuration in the MAC CE includes: in the MAC CE comprising TDD up/down Row configuration serial number.
Preferably, further include at least one of in the MAC CE: indicating the information of the scheduled duration；For identifying Whether the MAC CE is the marker sent for the first time；UL Grant is used to indicate the designated position.
Preferably, the designated position includes at least one of: the MAC CE that the end-on receives is carried out The position of hybrid automatic repeat-request HARQ feedback；The position of the UL Grant instruction；The position of default sub-frame of uplink.
Preferably, the UL Grant indicates the rule of the designated position and according to the UL in random access response Grant determines that rule used in the position of scheduled transmission is identical.
Preferably, the scheduled duration determines at least one in the following manner: predefining the scheduled duration；According to The information for the instruction scheduled duration for including in the MAC CE determines the scheduled duration.
Preferably, network side sends TDD and reconfigures notice MAC CE further include: the network side uses the MAC CE couple Whether the domain R for the MAC subheader answered is to send to be identified for the first time to the MAC CE.
Preferably, network side sends TDD and reconfigures notice MAC CE further include: the network side sends DCI, wherein institute Stating DCI includes to configure in the information transmitted on current PDSCH for identifying the MAC CE for including and the instruction TDD Whether information is the identification information sent for the first time.
Preferably, it includes: institute that the network side receives terminal to be properly received the feedback of the MAC CE in designated position It states network side and receives the ACK feedback for receiving the MAC CE that the terminal is sent in the designated position；And/or it is described Network side receives the MAC layer signaling for indicating to be properly received the MAC CE in the designated position.
Preferably, after network side transmission TDD reconfigures notice MAC CE, further includes: executing random access procedure In the case where, the TDD uplink/downlink configuration that the network side is notified according to system message carries out the transmission of RAR and to scheduled The reception of transmission.
The scheduled transmission scheduled duration is less than BCCH and changes the period.
In accordance with a further aspect of the present invention, a kind of TDD configuration updating device is provided, is located in terminal, comprising: receive mould Block reconfigures notice MAC CE for receiving TDD, wherein the information comprising instruction TDD configuration in the MAC CE；Execute mould Block, for being fed back in designated position, and the scheduled duration after receiving the MAC CE, begin to use the MAC The TDD configuration indicated in CE.
In accordance with a further aspect of the present invention, a kind of TDD configuration updating device is additionally provided, is located at network side, comprising: send Module reconfigures notice MAC CE for sending TDD, wherein the information comprising instruction TDD configuration in the MAC CE；Confirmation Module, for receiving the feedback that terminal is properly received the MAC CE in designated position, then the network side confirms the end The scheduled duration after receiving the MAC CE is held, the TDD indicated in the MAC CE is begun to use to configure.
Also one side according to the present invention provides a kind of TDD configuration more new system, including the above-mentioned TDD positioned at terminal Updating device is configured, further includes that the above-mentioned TDD positioned at network side configures updating device.
Through the invention, TDD is received using terminal and reconfigures notice MAC CE, wherein include instruction TDD in the MAC CE The information of configuration；Terminal is fed back in designated position, and the scheduled duration after receiving the MAC CE, begins to use this The mode of the TDD configuration indicated in MAC CE, the update mode for solving TDD configuration in the related technology cause to update institute not in time It leads to the problem of, improves the update efficiency of TDD configuration, improve the communication resources utilization ratio of TDD system.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is that system information changes schematic diagram in the TD-LTE system according to the relevant technologies；
Fig. 2 is the flow chart of TDD configuration update method according to an embodiment of the present invention；
Fig. 3 is the structural block diagram of TDD configuration updating device according to an embodiment of the present invention；
Fig. 4 is the flow chart of another kind TDD configuration update method according to an embodiment of the present invention；
Fig. 5 is the structural block diagram of another kind TDD configuration updating device according to an embodiment of the present invention；
Fig. 6 is the structural block diagram of TDD configuration more new system according to an embodiment of the present invention；
Fig. 7 is that according to embodiments of the present invention two dynamic changes the flow chart of TDD uplink/downlink configuration method；
Fig. 8 is that according to embodiments of the present invention three dynamic changes the preferred flow charts one of TDD uplink/downlink configuration method；
Fig. 9 (a) is that according to embodiments of the present invention three four kinds of TDD reconfigure the form schematic diagram one of notice MAC CE；
Fig. 9 (b) is that according to embodiments of the present invention three four kinds of TDD reconfigure the form schematic diagram two of notice MAC CE；
Fig. 9 (c) is that according to embodiments of the present invention three four kinds of TDD reconfigure the form schematic diagram three of notice MAC CE；
Fig. 9 (d) is that according to embodiments of the present invention three four kinds of TDD reconfigure the form schematic diagram four of notice MAC CE；
Figure 10 be according to embodiments of the present invention three TDD reconfigure notice MAC CE corresponding MAC subheader in MAC PDU Form schematic diagram；
Figure 11 be according to embodiments of the present invention four LTE system in random access procedure schematic diagram competition-based；
Figure 12 is that according to embodiments of the present invention five dynamic changes the preferred flow charts two of TDD uplink/downlink configuration method.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
To solve the above-mentioned problems, a kind of dynamic is needed to change the method for TDD configuration, TDD configuration in the existing system of ratio The time granularity of change is smaller, more flexible, and guarantees to cause to go out before and after changing boundary because of the change that TDD is configured What existing hybrid automatic repeat-request (Hybrid Automatic Repeat Request, referred to as HARQ) feedback can not be sent Problem.It can specify certain certain TDD of specific user configurations while guaranteeing that other users are unaffected.And base station (such as eNB) and terminal start to configure understanding having the same using new TDD uplink/downlink for when.
Therefore, a kind of TDD configuration update method is provided in the present embodiment, Fig. 2 is that TDD according to an embodiment of the present invention matches The flow chart of update method is set, as shown in Fig. 2, this method comprises the following steps:
Step S202, terminal receive TDD and reconfigure notice MAC CE, wherein include instruction TDD configuration in the MAC CE Information；
Step S204, terminal are fed back in designated position, and the scheduled duration after receiving the MAC CE, are started It is configured using the TDD indicated in the MAC CE.
Through the above steps, terminal is after the scheduled duration after receiving TDD and reconfiguring notice MAC CE for the present embodiment Begin to use the TDD indicated in the MAC CE to configure, is required to compared to the change for no matter when initiating TDD configuration in the related technology Wait until the next BCCH change period can in such a way that the TDD after change is configured and is communicated, change TDD configuration when Between granularity it is smaller and more flexible, new TDD configuration take-effective speed will not be influenced because the time for initiating TDD configuration change is different Degree, and start to configure understanding having the same using new TDD for when convenient for network side and terminal, solve related skill The update mode that TDD is configured in art leads to the problem that updating not in time, improves the update efficiency of TDD configuration, improves The communication resources utilization ratio of TDD system.
Preferably, the information comprising instruction TDD configuration in MAC CE can be TDD uplink/downlink configuration serial number.
It as a preferred implementation manner, can also include some other instruction information in the MAC CE, such as: instruction The information of above-mentioned scheduled duration, for identifying whether the MAC CE is that the marker sent for the first time and uplink authorize (UL Grant), which can serve to indicate that above-mentioned designated position.
Preferably, the MAC CE that above-mentioned designated position can be that end-on receives carry out HARQ feedback position (namely Terminal carries out HARQ feedback to the Medium Access Control (MAC) Protocol Data Unit (Protocol Data Unit, referred to as PDU) where the MAC CE Position), and/or, UL Grant instruction position, and/or, the position of preset fixed sub-frame of uplink.
Wherein, if indicating above-mentioned designated position using UL Grant, UL Grant indicate the rule of designated position with Determine that rule used in the position of scheduled transmission is identical according to the UL Grant in random access response.For example, according to Existing protocol, UE scheduled transmission (namely Msg3) determined according to the UL Grant in random access response if rule be UE receives random access response in subframe n, and includes wherein UL Grant, then UE is in first or second available uplink Subframe n+k sends Msg3, and wherein k is more than or equal to 6.In the present embodiment, using the rule for determining designated position according to UL Grant It determines that the rule of position of Msg3 transmission is identical with according to the UL Grant in random access response, is specifically as follows: if UE exists Subframe n receives TDD and reconfigures notice MAC CE, and includes wherein UL Grant, then UE is available at first or second It is sent on sub-frame of uplink n+k and is properly received the MAC layer signaling that the TDD reconfigures notice, wherein k is more than or equal to 6, and UE exists When determining first or second available sub-frame of uplink, TDD indicated in notice MAC CE is reconfigured using TDD Uplink/downlink configuration.
Preferably, above-mentioned scheduled duration can determine in the following manner: predetermined duration, and/or, according to MAC The information for the indicating predetermined duration for including in CE determines the scheduled duration.
Preferably, terminal can determine whether the MAC CE is to send for the first time, and determination method may include following several: Method one is used to identify whether the MAC CE is the marker sent for the first time determines whether it is for the first time according to include in MAC CE It sends；Method two, terminal obtain the domain R of the corresponding MAC subheader of MAC CE, and whether the domain R is for being to send for the first time to MAC CE It is identified；Method three, terminal receive Downlink Control Information (Downlink Control Information, referred to as DCI), The DCI include for identify present physical DSCH Downlink Shared Channel (Physical Downlink Shared Channel, referred to as Whether the information of the MAC CE and instruction TDD configuration that include in the information transmitted on PDSCH) are the mark letters sent for the first time Breath.If in the case where the information that DCI identifies instruction TDD configuration is not to send for the first time, what terminal can not transmit and receive Hybrid automatic repeat-request corresponding to MAC CE (Hybrid Automatic Repeat Request, referred to as HARQ) is anti- Feedback.
In addition, in order to avoid interference problem, neighboring community is preferred identical in TDD system in network planning process TDD uplink/downlink configuration.But when actually arranging net, it is sometimes difficult to accomplish that the TDD uplink/downlink of all cells in a region is matched Set all it is identical, this will aggravate inter-cell interference, the user experience of Cell Edge User be reduced, if can be with characterizing portion side Edge user is scheduled in certain specific sub-frames, measures, feeds back, then ensure that the intercell interference being subject to, The communication quality of this certain customers is promoted, it is a kind of scheme for easily realizing the target that dynamic, which changes serving cell TDD configuration, Synchronous as TDD uplink/downlink by coordinating two cells in the short time, that one inter-cell interference will reduce.
Therefore as a preferred implementation manner, if terminal discovery controls (Radio in current radio resource Resource Control, referred to as RRC) connection in be for the first time receive the MAC CE, then terminal can execute following limitation At least one: physical layer descending measurement is limited on preset downlink subframe and executes by terminal；Terminal is by periodic channel quality Indicate (Channel Quality Indication, referred to as CQI)/pre-coding matrix instruction (Precoding Matrix Indicator, referred to as PMI)/order instruction (Rank Indication, referred to as RI)/Sounding Reference Signal (Sounding Reference Signal, referred to as SRS) transmission, which is limited on preset sub-frame of uplink, to be executed；If half is quiet The subframe of state continuous dispatching (Semi-Persistent Scheduling, referred to as SPS) downlink transfer becomes sub-frame of uplink, then The SPS downlink transmission that terminal skips subframe receives, alternatively, terminal downlink subframe nearest after sub-frame of uplink or nearest default The position identical DL assignment of downlink subframe receives SPS downlink transmission；If the subframe of SPS uplink becomes downlink Subframe, then the terminal sub-frame of uplink nearest after downlink subframe without SPS uplink or terminal or it is nearest it is default on The position identical UL Grant of row subframe carries out SPS uplink.
Preferably, it is received before TDD reconfigures notice MAC CE in terminal, terminal, which can also receive, to be used to indicate TDD and match The first enabled signaling of update method is set, terminal can then determine that network side will send TDD weight when receiving the first signaling Configuration notification MAC CE, so that terminal can be ready to receive the MAC CE and carrying out TDD configuration change.
Wherein, above-mentioned first signaling can use MAC CE or wireless heterogeneous networks (Radio Resource Control, Referred to as RRC) signaling etc. carried.
It is mentioned above, if can be scheduled, be measured, instead in certain specific sub-frames with characterizing portion edge customer Feedback promotes the communication quality of this certain customers, it is small that dynamic changes service then ensuring that the intercell interference being subject to TDD configuration in area is a kind of scheme for easily realizing the target, becomes TDD uplink/downlink by coordinating two cells in the short time Synchronous, that one inter-cell interference will reduce.Therefore, in the case that terminal receives above-mentioned first signaling, terminal can also be held At least one following limitation of row:
Physical layer descending measurement is limited on preset downlink subframe and executes by terminal；Terminal refers to periodic channel quality Show that (Channel Quality Indication, referred to as CQI)/and encoder matrix indicate (Precoding Matrix Indicator, referred to as PMI)/order instruction (Rank Indication, referred to as RI)/Sounding Reference Signal (Sounding Reference Signal, referred to as SRS) transmission, which is limited on preset sub-frame of uplink, to be executed；If half is quiet The subframe of state continuous dispatching (Semi-Persistent Scheduling, referred to as SPS) downlink transfer becomes sub-frame of uplink, then The SPS downlink transmission that terminal skips subframe receives, alternatively, terminal downlink subframe nearest after sub-frame of uplink or nearest default The identical downlink assignment position (DL assignment) of downlink subframe receives SPS downlink transmission；If the son of SPS uplink Frame becomes downlink subframe, then the terminal sub-frame of uplink nearest after downlink subframe without SPS uplink or terminal or most The position identical UL Grant of close default sub-frame of uplink carries out SPS uplink.
Preferably, after terminal receives and is used to indicate the first enabled signaling of TDD configuration update method, if terminal is held Row random access procedure, and the case where terminal receives random access response (Random Access Response, referred to as RAR) Under, terminal sends out scheduled transmission according to the TDD uplink/downlink configuration notified in system message or RRC reconfiguration message It send.
Preferably, after terminal executes above-mentioned limitation, if terminal receives and is used to indicate TDD configuration and updates the terminated Two signalings can then cancel above-mentioned limitation.
Wherein, above-mentioned second signaling can use MAC CE or RRC signaling etc. and be carried.
Preferably, terminal can be fed back in the following manner in above-mentioned designated position: terminal is in above-mentioned designated position Send the HARQ feedback to Medium Access Control (MAC) Protocol Data Unit (Protocol Data Unit, referred to as PDU), wherein the MAC PDU It is the MAC PDU where the above-mentioned MAC CE received；Alternatively, terminal can also be sent to network side for indicating to be properly received The MAC layer signaling of MAC CE.
It should be noted that scheduled duration above is less than the change period n's of BCCH channel of broadcast control, lead to Often, above-mentioned scheduled duration is much smaller than change period n, for example, the length of change period n is at least 640ms, and it is above-mentioned pre- Long timing is usually more than ten ms or a few ms.
Update method is configured corresponding to above-mentioned TDD, additionally provides a kind of TDD configuration updating device, position in the present embodiment In terminal, the device is for realizing above-described embodiment and preferred embodiment, and the descriptions that have already been made will not be repeated.Such as with Used in lower, the combination of the software and/or hardware of predetermined function is may be implemented in term " module ".Although following embodiment is retouched The device stated preferably realized with software, but the combined realization of hardware or software and hardware be also may and by structure Think.
Fig. 3 is the structural block diagram of TDD configuration updating device according to an embodiment of the present invention, as shown in figure 3, the device packet Include: receiving module 32 and execution module 34 are below described in detail modules.
Receiving module 32 reconfigures notice MAC CE for receiving TDD, wherein include instruction TDD configuration in the MAC CE Information；Execution module 34 is connected with receiving module 32, for being fed back in designated position, and receive MAC CE it Scheduled duration afterwards begins to use the TDD indicated in the MAC CE to configure.
By above-mentioned module, terminal receives after TDD reconfigures notice MAC CE the present embodiment in receiving module 32 After scheduled duration, execution module 34 begins to use the TDD indicated in the MAC CE to configure, compared to no matter when sending out in the related technology The change for playing TDD configuration is required to wait until that next BCCH change period can be communicated according to the configuration of the TDD after change Mode, the time granularity for changing TDD configuration is smaller and more flexible, will not because the time for initiating TDD configuration change is different and New TDD configuration take-effective speed is influenced, and starts that there is phase using new TDD configuration for when with terminal convenient for network side Same understanding, the update mode for solving TDD configuration in the related technology lead to the problem that updating not in time, improve The update efficiency of TDD configuration, improves the communication resources utilization ratio of TDD system.
Another TDD configuration update method is additionally provided in the present embodiment, and Fig. 4 is according to an embodiment of the present invention another The flow chart of kind TDD configuration update method, as shown in figure 4, this method comprises the following steps:
Step S402, network side send TDD and reconfigure notice MAC CE, wherein include instruction TDD configuration in the MAC CE Information；
Step S404, network side receive the feedback that terminal is properly received the MAC CE in designated position, then the network side Confirm scheduled duration of the terminal after receiving above-mentioned MAC CE, the TDD indicated in above-mentioned MAC CE is begun to use to configure.
The present embodiment through the above steps, network side confirmation receive terminal to be properly received TDD reconfigure notice MAC After scheduled duration after the feedback of CE, terminal begin to use the TDD indicated in the MAC CE configure, compared in the related technology without By when initiating the change of TDD configuration and be required to wait until that next BCCH changes the period and can configure according to the TDD after change The mode communicated, change TDD configuration time granularity it is smaller and more flexible, will not because of initiate TDD configuration change when Between it is different and influence new TDD configuration take-effective speed, and start that new TDD is used to match for when with terminal convenient for network side Understanding having the same is set, the update mode for solving TDD configuration in the related technology leads to the problem that updating not in time, The update efficiency of TDD configuration is improved, the communication resources utilization ratio of TDD system is improved.
Preferably, if network side does not receive the feedback that terminal is properly received MAC CE, network side in designated position It may determine whether to retransmit the MAC CE.
Preferably, the information comprising instruction TDD configuration in MAC CE can be TDD uplink/downlink configuration serial number.
It as a preferred implementation manner, can also include some other instruction information in the MAC CE, such as: instruction The information of above-mentioned scheduled duration, for identifying whether the MAC CE is that the marker sent for the first time and uplink authorize (UL Grant), which can serve to indicate that above-mentioned designated position.
Preferably, the MAC CE that above-mentioned designated position can be that end-on receives carries out the position of HARQ feedback, and/ Or, the position of UL Grant instruction, and/or, the position of preset fixed sub-frame of uplink.
Wherein, if indicating above-mentioned designated position using UL Grant, UL Grant indicate the rule of designated position with Determine that the position of scheduled transmission uses the rule set identical according to the UL Grant in random access response.For example, according to Existing protocol, UE scheduled transmission (namely Msg3) determined according to the UL Grant in random access response if rule be UE receives random access response in subframe n, and includes wherein UL Grant, then UE is in first or second available uplink Subframe n+k sends Msg3, and wherein k is more than or equal to 6.In the present embodiment, using the rule for determining designated position according to UL Grant Determine that the rule of position of Msg3 transmission is identical with according to the UL Grant in random access response, specifically: if UE is in subframe n It receives TDD and reconfigures notice MAC CE, and wherein include UL Grant, then UE is in first or second available uplink It is sent on frame n+k and is properly received the MAC layer signaling that the TDD reconfigures notice, wherein k is more than or equal to 6, and UE is determining the One or when second available sub-frame of uplink, TDD uplink/downlink indicated in notice MAC CE is reconfigured using TDD Configuration.
Preferably, above-mentioned scheduled duration can determine in the following manner: predetermined duration, and/or, according to MAC The information for the indicating predetermined duration for including in CE determines the scheduled duration.
Preferably, network side can indicate whether the MAC CE is to send for the first time, and indicating means may include following several Kind: method one, according to include in MAC CE for identify the MAC CE whether be the marker sent for the first time indicate whether be It sends for the first time；Whether method two, network side are to send to carry out for the first time to MAC CE in the domain R of the corresponding MAC subheader of MAC CE Mark；Method three, network side send Downlink Control Information (Downlink Control Information, referred to as DCI), should DCI include for identify present physical DSCH Downlink Shared Channel (Physical Downlink Shared Channel, referred to as Whether the information of the MAC CE and instruction TDD configuration that include in the information transmitted on PDSCH) are the mark letters sent for the first time Breath.
Preferably, network side can receive the feedback of terminal in above-mentioned designated position in the following manner: network side is upper That states that designated position receives that terminal sends is anti-to MAC CE symbol (Acknowledgment, referred to as ACK) of reading really is received Feedback, alternatively, network side receives the MAC layer signaling for indicating to be properly received MAC CE in above-mentioned designated position.
Preferably, in the case where executing random access procedure, TDD uplink/downlink that network side is notified according to system message Configuration carries out the transmission of random access response (RAR) and the reception to scheduled transmission.
It should be noted that scheduled duration above is less than the change period n's of BCCH channel of broadcast control, lead to Often, above-mentioned scheduled duration is much smaller than change period n, for example, change period n is at least 640ms, and above-mentioned scheduled duration Usually more than ten ms or a few ms.
Update method is configured corresponding to above-mentioned another kind TDD, another TDD configuration is additionally provided in the present embodiment and updates Device, is located at network side, which had carried out the no longer superfluous of explanation for realizing above-described embodiment and preferred embodiment It states.As used below, the combination of the software and/or hardware of predetermined function may be implemented in term " module ".Although following real Apply device described in example and preferably realized with software, but the combined realization of hardware or software and hardware be also can It can and be contemplated.
Fig. 5 is the structural block diagram of another kind TDD configuration updating device according to an embodiment of the present invention, as shown in figure 5, the dress Setting includes: sending module 52 and confirmation module 54, and modules are described in detail below.
Sending module 52 reconfigures notice MAC CE for sending TDD, wherein include instruction TDD configuration in the MAC CE Information；Confirmation module 54 is connected with sending module 52, is properly received the MAC CE's for receiving terminal in designated position Feedback, then network side confirms scheduled duration of the terminal after receiving above-mentioned MAC CE, begins to use in shown MAC CE The TDD of instruction is configured.
The present embodiment by above-mentioned module, network side by sending module 52 send TDD reconfigure notice MAC CE it Afterwards, confirmed by confirmation module 54 and receiving terminal to the pre- timing after being properly received TDD to reconfigure the feedback of notice MAC CE After length, terminal begin to use the TDD indicated in the MAC CE configure, compared to no matter when initiate in the related technology TDD configuration Change is required to wait until that next BCCH change period can change in such a way that the TDD after change is configured and communicated The time granularity of TDD configuration is smaller and more flexible, will not influence new TDD because the time for initiating TDD configuration change is different Configuration take-effective speed, and start to configure understanding having the same, solution for when using new TDD convenient for network side and terminal The update mode that TDD is configured in the related technology of having determined leads to the problem that updating not in time, improves the update of TDD configuration Efficiency improves the communication resources utilization ratio of TDD system.
In the present embodiment, a kind of TDD configuration more new system is additionally provided, Fig. 6 is that TDD according to an embodiment of the present invention matches The structural block diagram of more new system is set, as shown in fig. 6, the system includes that the TDD configuration being located in terminal 30 as shown in Figure 3 updates Device further includes that the TDD positioned at network side 50 as shown in Figure 5 configures updating device.
It is illustrated below with reference to preferred embodiment, preferred embodiment below combines above-described embodiment and its preferred implementation Mode.
In preferred embodiment below, a kind of method of dynamic change TDD configuration is provided.
Embodiment one
In the preferred embodiment, a kind of dynamic change TDD uplink/downlink configuration method is proposed, this method is as follows:
It receives TDD and reconfigures notice media access control (Medium Access Control, MAC) control element (Control Element, CE)；
If being correctly decoded, fed back in designated position, and begins to use above-mentioned TDD to reconfigure notice in the predetermined time Indicated TDD configuration in MAC CE.
Above-mentioned TDD reconfigures notice MAC CE and includes TDD uplink/downlink configuration serial number or configure serial number including TDD uplink/downlink With following any one or more combination:
It receives above-mentioned TDD and reconfigures notice MAC CE to the TDD for beginning to use above-mentioned TDD to reconfigure notice MAC CE instruction Time span between configuration；
For identifying whether above-mentioned MAC CE is the marker sent for the first time；
It is used for transmission above-mentioned TDD and reconfigures the uplink of the feedback being correctly received and authorize (UL Grant).
Preferably, it is reconfigured using above-mentioned TDD and notifies the domain R of MAC subheader corresponding to MAC CE to identify above-mentioned TDD weight Whether configuration notification MAC CE is to send for the first time.
Preferably, it is identified by Downlink Control Information (Downlink Control Information, DCI) current Notice MAC CE is reconfigured comprising above-mentioned TDD in the information transmitted on PDSCH and whether above-mentioned TDD reconfiguration information is for the first time It sends.
Optionally, it is not to send for the first time that DCI, which identifies above-mentioned TDD reconfiguration information, and UE does not send the MAC that the subframe receives The HARQ feedback of PDU.
Above-mentioned designated position is specially the position for receiving the HARQ feedback of subframe where above-mentioned TDD reconfigures notice MAC CE It sets, and/or in the position according to determined by the UL Grant that above-mentioned TDD is reconfigured in notice MAC CE and/or preset fixation The position of row subframe.
It is above-mentioned position determined by the UL Grant notified in MAC CE to be reconfigured according to above-mentioned TDD and according to random access The rule of position determined by UL Grant in response is identical.
Above-mentioned fed back specially receives the HARQ feedback that above-mentioned TDD reconfigures notice MAC CE place MAC PDU, or The new MAC layer signaling of notice MAC CE is reconfigured for indicating to be properly received above-mentioned TDD.
The above-mentioned predetermined time is provided by agreement or reconfigures the time span notified in notice MAC CE according to above-mentioned TDD It determines.
Optionally, before UE reception TDD reconfigures notice MAC CE, UE, which is received, is used to indicate the enabled letter of dynamic TDD configuration It enables.
The above-mentioned enabled signaling of dynamic TDD configuration that is used to indicate is carried using MAC CE or RRC signaling.
Preferably, above-mentioned UE is first in current radio resource control (Radio Resource Control, RRC) connection It is secondary receive above-mentioned TDD and reconfigure notice MAC CE or UE receive when being used to indicate the enabled signaling of dynamic TDD configuration, limit Physical layer descending measurement can only execute on fixed downlink subframe.
Preferably, above-mentioned UE is first in current radio resource control (Radio Resource Control, RRC) connection It is secondary receive above-mentioned TDD and reconfigure notice MAC CE or UE receive when being used to indicate the enabled signaling of dynamic TDD configuration, limit Periodical CQI/PMI/RI/SRS transmission can only execute on fixed sub-frame of uplink.
Preferably, above-mentioned UE is first in current radio resource control (Radio Resource Control, RRC) connection It is secondary to receive above-mentioned TDD and reconfigure after notice MAC CE or UE receive and be used to indicate the enabled signaling of dynamic TDD configuration, if half The subframe of static continuous dispatching (SPS) downlink transfer becomes sub-frame of uplink, then downlink subframe nearest after above-mentioned sub-frame of uplink Or nearest fixation downlink subframe the position identical DL assignment receive or skip the subframe SPS downlink transmission connect It receives.
Preferably, above-mentioned UE is first in current radio resource control (Radio Resource Control, RRC) connection It is secondary to receive above-mentioned TDD and reconfigure after notice MAC CE or UE receive and be used to indicate the enabled signaling of dynamic TDD configuration, if half The subframe of static continuous dispatching (SPS) uplink becomes downlink subframe, then do not send or after above-mentioned downlink subframe recently Sub-frame of uplink or the position identical UL Grant of nearest fixation sub-frame of uplink sent.
Optionally, when UE receives the signaling for being used to indicate dynamic TDD configuration end, cancel and downlink is measured, SPS scheduling It receives and transmits, and the limitation that periodicity CQI/PMI/RI/SRS is reported.
Preferably, the signaling that above-mentioned instruction dynamic TDD configuration terminates is carried using MAC CE or RRC signaling.
In the preferred embodiment, it is also proposed that a kind of dynamic change TDD uplink/downlink configuration method, this method are as follows:
Network side sends TDD and reconfigures notice MAC CE；
Network side in designated position according to whether receiving above-mentioned TDD and reconfiguring the feedback that is correctly received of notice MAC CE and hold Row different step.
Above-mentioned network side according to whether designated position receive above-mentioned TDD reconfigure notice MAC CE be correctly received it is anti- Feedback executes different step specifically:
If receiving above-mentioned TDD in designated position reconfigures the feedback that notice MAC CE is correctly received, then it is assumed that predetermined The UE fed back after time begins to use above-mentioned TDD to reconfigure TDD configuration indicated in notice MAC CE；
If not receiving above-mentioned TDD in designated position reconfigures the feedback that notice MAC CE is correctly received, network side Decide whether that retransmitting above-mentioned TDD reconfigures notice MAC CE.
Above-mentioned TDD reconfigures notice MAC CE and includes TDD uplink/downlink configuration serial number or configure serial number including TDD uplink/downlink With following any one or more combination:
Above-mentioned UE receives above-mentioned TDD and reconfigures notice MAC CE to beginning to use above-mentioned TDD to reconfigure in notice MAC CE Time span between the TDD configuration of instruction；
Reconfigure whether notice MAC CE is the marker sent for the first time for identifying above-mentioned TDD；
It is used for transmission the UL Grant for the feedback information that above-mentioned TDD reconfiguration information is correctly received.
Optionally, it is reconfigured using above-mentioned TDD and notifies the domain R of MAC subheader corresponding to MAC CE to identify above-mentioned TDD weight Whether configuration notification MAC CE is to send for the first time.
Preferably, identified by DCI in the information transmitted on current PDSCH comprising above-mentioned TDD reconfigure notice and Above-mentioned TDD reconfigures whether notice MAC CE is to send for the first time.
The above-mentioned predetermined time is provided by agreement or is reconfigured by above-mentioned TDD that MAC CE is notified to specify.
Above-mentioned designated position is specially the HARQ feedback that network side sends subframe where above-mentioned TDD reconfigures notice MAC CE Position, or according to above-mentioned TDD reconfigure notice MAC CE in UL Grant determined by position.
It is above-mentioned position determined by the UL Grant notified in MAC CE to be reconfigured according to above-mentioned TDD and according to random access The rule of position determined by UL Grant in response is identical.
Above-mentioned feedback is specially the HARQ feedback that above-mentioned UE is properly received MAC PDU where above-mentioned TDD reconfigures MAC CE, Or for indicating that above-mentioned UE is properly received the new MAC layer signaling that above-mentioned TDD is reconfigured.
Preferably, when executing random access procedure, UE receives random access response (RandomAccesss Response) Afterwards, the transmission of Msg3 is carried out according to the TDD uplink/downlink configuration notified in system message or RRC reconfiguration message.
Preferably, when executing random access procedure, the TDD uplink/downlink configuration that network side is notified according to system message is carried out The transmission of RAR and the reception of Msg3.
Embodiment two
Fig. 7 is that according to embodiments of the present invention two dynamic changes the flow chart of TDD uplink/downlink configuration method, such as Fig. 7 institute Show, this method comprises the following steps:
Step S702: network side (for example, eNB) sends TDD to UE and reconfigures notice MAC CE.
Above-mentioned TDD reconfigures notice MAC CE and includes TDD uplink/downlink configuration serial number or configure serial number including TDD uplink/downlink It receives above-mentioned TDD with following any one or more combination: above-mentioned UE and reconfigures notice MAC CE to beginning to use above-mentioned TDD Reconfigure the time span between the TDD configuration indicated in notice MAC CE；Notice MAC CE is reconfigured for identifying above-mentioned TDD It whether is the marker sent for the first time；It is used for transmission the UL for the feedback information that above-mentioned TDD reconfiguration information is correctly received Grant。
Optionally, it is reconfigured using above-mentioned TDD and notifies the domain R of MAC subheader corresponding to MAC CE to identify above-mentioned TDD weight Whether configuration notification MAC CE is to send for the first time.Preferably, it is identified by DCI in the information transmitted on current PDSCH and includes Above-mentioned TDD reconfigures notice and above-mentioned TDD reconfigures whether notice MAC CE is to send for the first time.
What needs to be explained here is that it is to indicate that above-mentioned TDD, which reconfigures notice MAC CE and sends for the first time, within the scope of this patent It is different that TDD configuration indicated by notice MAC CE is reconfigured to the above-mentioned TDD that the UE is sent from the last time sends, or current TDD, which is sent, to the UE for the first time in RRC connection reconfigures notice MAC CE；It is not for the first time that above-mentioned TDD, which reconfigures notice MAC CE, Sending then to show to reconfigure to the above-mentioned TDD that the UE is sent with the last time sends notifies TDD configuration indicated by MAC CE identical, And/or had in the service range of base station user be used the TDD reconfigure it is indicated in notice MAC CE TDD uplink/downlink configuration.
Step S704:UE receives TDD and reconfigures notice MAC CE.
The content that above-mentioned TDD reconfigures notice MAC CE is identical with step S702.
Step S706:UE judges whether that being correctly decoded above-mentioned TDD reconfigures notice.
UE judges whether that being correctly decoded above-mentioned TDD reconfigures notice, if then entering step S708, if otherwise entering step S714。
Step S708:UE received correctly above-mentioned TDD in designated position feedback and reconfigure notice MAC CE.
The position of the HARQ feedback of subframe where above-mentioned designated position can reconfigure notice MAC CE to receive above-mentioned TDD It sets, and/or in the position according to determined by the UL Grant that above-mentioned TDD is reconfigured in notice MAC CE and/or preset fixation The position of row subframe.It is above-mentioned according to above-mentioned TDD reconfigure notice MAC CE in UL Grant determined by position and according to The rule of position determined by UL Grant in machine access response is identical.Above-mentioned fed back specially receives above-mentioned TDD weight The HARQ feedback of MAC PDU where configuration notification MAC CE, or for indicating that being properly received above-mentioned TDD reconfigures notice MAC CE New MAC layer signaling.The position of the fixation sub-frame of uplink can where the UpPTS of 1# subframe rear several OFDM symbols and One of 2# subframe.When the TDD reconfiguration information transmitted on the DCI message identification PDSCH on PDCCH is not to send for the first time, Optionally, UE does not send the HARQ feedback for the MAC PDU that the subframe receives.
It can provide in the protocol, UE needs to reconfigure the TDD transmitted notice for the first time and carries out HARQ feedback, and UE is not needed Notice is reconfigured to the TDD transmitted for the first time and feeds back new MAC layer signaling.
It can provide in the protocol, UE is needed to not being that the TDD transmitted for the first time reconfigures notice and feeds back new MAC layer and believes It enables, UE can not reconfigure notice to the TDD transmitted for the first time and carry out HARQ feedback.
Step S710: whether network side in designated position receives the feedback that UE is properly received.
Network side judges whether to receive the feedback that UE is properly received in designated position, if so, S712 is entered step, if It is no, then enter step S714.
Above-mentioned designated position can send the HARQ feedback of subframe where above-mentioned TDD reconfigures notice MAC CE for network side Position, and/or the position and/or preset solid according to determined by the UL Grant that above-mentioned TDD is reconfigured in notice MAC CE Determine the position of sub-frame of uplink.Position and root determined by the above-mentioned UL Grant reconfigured in notice MAC CE according to above-mentioned TDD It is identical according to the rule of position determined by the UL Grant in random access response.Above-mentioned feedback is specially that above-mentioned UE is properly received The HARQ feedback of MAC PDU where above-mentioned TDD reconfigures MAC CE, or for indicating that above-mentioned UE is properly received above-mentioned TDD reconfiguration The new MAC layer signaling set.
Step S712:UE begins to use above-mentioned TDD to reconfigure the TDD configuration indicated in notice MAC CE in the predetermined time, Network side thinks that UE begins to use above-mentioned TDD to reconfigure the TDD configuration indicated in notice in the predetermined time.
The above-mentioned predetermined time can be provided by agreement or be reconfigured according to above-mentioned TDD the time notified in notice MAC CE Length determines.
Step S714: network side decides whether that sending TDD to above-mentioned UE again reconfigures notice, if determining to retransmit, Then enter step S702.
Network side do not receive above-mentioned TDD reconfigure the feedback that is correctly received of notice MAC CE may be due to UE not It is correctly decoded above-mentioned TDD and reconfigures notice MAC CE, it is also possible to be correctly received since above-mentioned TDD reconfigures notice MAC CE Feedback interference etc. due to do not received by network side.Network side needs to decide whether to send to above-mentioned UE again at this time TDD reconfigures notice, and a counter can be set in network side, sends primary above-mentioned TDD to above-mentioned UE every time and reconfigures notice MAC CE, then counter adds one, if reaching maximum number of times of transmission, network side no longer can send TDD weight to above-mentioned UE at this time Configuration notification sends new TDD to above-mentioned UE again when waiting next TDD uplink/downlink configuration change and reconfigures notice.It is optional It can be sent to above-mentioned UE and be used to indicate the signaling that dynamic TDD configuration terminates, then above-mentioned UE can return back to traditional UE state, root It is transmitted and is received according to the TDD uplink/downlink configuration of system message notice.Network side can not also maintain above-mentioned timer, root The time point for thinking current distance TDD uplink/downlink next time configuration change according to internal algorithm, there are also the long periods, and/or if existing Notice is reconfigured retransmitting above-mentioned TDD, to cell throughout or beneficial, then network side can be again to above-mentioned UE hair TDD is sent to reconfigure notice.If determining to retransmit, S702 is entered step；If decision does not retransmit, process terminates.
Embodiment three
Think that current TDD is configured when network side and be not suitable for current traffic uplink and downlink proportion, or due to neighboring community Can be quite serious to the interference of some subframe, due to some subframe can generate serious interference etc. to neighboring community, according to interior Algorithms need to adjust the TDD uplink/downlink configuration of this cell, and at this moment network side can be to certain UE hairs in RRC connected state TDD is sent to reconfigure notice, the TDD uplink/downlink configuration used for adjusting this part UE, to improve resource utilization.
Fig. 8 is that according to embodiments of the present invention three dynamic changes the preferred flow charts one of TDD uplink/downlink configuration method, such as Shown in Fig. 8, this method comprises the following steps:
Step S802: network side sends TDD to the UE in RRC connected state for the first time and reconfigures notice.
Network side send for the first time TDD reconfigure notice MAC CE when, if UE and network side all use TDD uplink/downlink Configure A, it is TDD uplink/downlink configuration B that TDD, which is reconfigured indicated in notice MAC CE, then A and B is different.Include two kinds Situation: one, there is no this function is configured using dynamic TDD before network side, A is the TDD uplink/downlink notified in system message Configuration, at this time network side think to open dynamic TDD configure this function and to the support dynamic for being currently at RRC connected state The UE that TDD configures this function sends TDD for the first time and reconfigures notice；Two, be transmitted across before network side TDD reconfigure it is logical Know, dynamic TDD configuration feature is enabled, and A is that last TDD reconfigures the TDD uplink/downlink configuration indicated in notice, currently Network side discovery needs to change TDD uplink/downlink configuration, reconfigures notice to the TDD for being configured to B that UE sends instruction for the first time.With On either way belong to network side and send TDD to the UE in RRC connected state for the first time and reconfigure the range of notice.
It includes TDD uplink/downlink configuration serial number that above-mentioned TDD, which reconfigures notice MAC CE, or is configured including TDD uplink/downlink Serial number and following one or more combination: above-mentioned UE receives above-mentioned TDD and reconfigures notice MAC CE to beginning to use above-mentioned TDD Reconfigure the time span between the TDD configuration indicated in notice MAC CE；Notice MAC CE is reconfigured for identifying above-mentioned TDD It whether is the marker sent for the first time；It is used for transmission the UL for the feedback information that above-mentioned TDD reconfiguration information is correctly received Grant.Fig. 9 (a) to (d) is that according to embodiments of the present invention three four kinds of TDD reconfigure the form schematic diagram of notice MAC CE, such as Shown in Fig. 9 (a) to (d), wherein TDD config indicates that TDD configures serial number, occupies the position of 3 bits, using three two into Number processed respectively indicates 7 kinds of different TDD uplink/downlink configurations；Timer indicates to receive above-mentioned MAC CE to beginning to use above-mentioned MAC Time span between the TDD configuration of CE instruction, occupies the position of 4 bits, indicates 0 ~ 15ms's using tetrad Time span；N indicates whether the above-mentioned MAC CE of mark is the marker sent for the first time, the position of 1 bit is occupied, if for the first time Transmission is then set as 1 or 0, corresponding if not send for the first time, is set as 0 or 1；ULGrant is that network side is used for what UE was distributed The uplink authorization for transmitting the feedback that above-mentioned TDD reconfiguration information is correctly received, occupies the position of 20 bits.Fig. 9 (a) is extremely (d) example that 4 kinds of TDD reconfigure notice MAC CE is only gived, other combinations, can be according to TDD weight there is no successively enumerating Each domain is combined by the content of configuration notification MAC CE, it should be noted that MAC CE must be the format of byte-aligned, it is insufficient Can use R(reserved bit) supplied.Position of each domain in the same MAC CE in each figure is not limited to provide here Schematic diagram, position can be interchanged, and the number of bits of occupancy can also have change.
Figure 10 be according to embodiments of the present invention three TDD reconfigure notice MAC CE corresponding MAC subheader in MAC PDU Form schematic diagram, as shown in Figure 10, wherein the domain LCID of MAC subheader (sub-header) use binary number 01011- One in 11010 is identified, wherein the bit that can use in the domain R of MAC subheader is used to identify above-mentioned TDD weight Whether configuration notification is to send for the first time.There are two bits altogether in the domain R, use any bit.If having in MAC subheader Mark TDD reconfigures whether notice is the marker N sent for the first time, then can not include marker N in MAC CE.Preferably, Can use the DCI information on PDCCH identify in the information transmitted on PDSCH comprising above-mentioned TDD reconfigure notice and on It states TDD and reconfigures whether notice MAC CE is to send for the first time.Network side can carry on PDSCH in DCI information in this step It is the content sent for the first time that the TDD of transmission, which reconfigures notice,.Here it also is understood as carrying book using the DCI information on PDCCH Whether the content transmitted on frame needs HARQ feedback, if transmitting for the first time, the mark for needing HARQ feedback is carried in DCI information Know.
In this step, network side can use TDD reconfigure notice MAC CE perhaps the corresponding subheader of MAC CE or Any one in DCI information these three modes on PDCCH is come to indicate that transmitted TDD reconfigures notice be to transmit for the first time.
Step S804:UE receives the above-mentioned TDD transmitted for the first time and reconfigures notice, and is fed back according to decoding result, if Decoding is correct, then new TDD uplink/downlink is begun to use to configure after the predetermined time.
UE receives above-mentioned TDD and reconfigures notice, and it is to transmit for the first time, but UE is not that above-mentioned TDD, which reconfigures notice, in this step Know, it is necessary to can just be determined by being correctly decoded.
If UE is not correctly decoded PDSCH, above-mentioned UE can be in the location transmission NACK of HARQ feedback, if UE is not correct PDCCH is decoded, then above-mentioned UE will not transmit HARQ feedback to network side, and under both of these case, network side not will receive above-mentioned The TDD transmitted for the first time reconfigures the feedback that notice is correctly received.
If UE is correctly decoded, it will knowing that this TDD reconfigures notice is to transmit for the first time, and no matter network side is using three kinds of marks Know whether be any one in the method transmitted for the first time, for the TDD transmitted for the first time reconfigure notice require carry out HARQ it is anti- Feedback, optionally, UE can reconfigure notice for the TDD transmitted for the first time and not send the new MAC layer signaling for indicating to be properly received Feedback.
UE begins to use TDD to reconfigure TDD uplink/downlink configuration indicated in notice after the predetermined time, above-mentioned predetermined Time is provided or is reconfigured according to above-mentioned TDD by agreement that the time span notified in MAC CE is notified to determine.It is provided by agreement It can be one value of regulation in the protocol, or can use and discontinuously receive (Discontinuous in existing protocol Reception, DRX) in hybrid automatic repeat-request round-trip delay timer (HARQ RTT Timer): when UE receive it is above-mentioned Start HARQ RTT Timer when MAC CE, if UE is correctly decoded above-mentioned MAC CE, when HARQ RTT Timer time-out, UE The TDD notified in above-mentioned MAC CE is begun to use to configure.
Above-mentioned new TDD uplink/downlink configuration is exactly that TDD reconfigures TDD uplink/downlink configuration indicated in notice.
Step S806: if network side receives ACK feedback in designated position, according to new TDD up/down after the predetermined time The row configuration above-mentioned UE of normal consistency；If network side does not receive ACK feedback, decide whether to retransmit.
Network side did not receive there are two types of the reason of ACK feedback, first is that UE is not correctly decoded above-mentioned TDD reconfiguration confidence Breath, second is that the problems such as ACK is fed back in transmission process due to channel disturbance, leads to network mistake harvest NACK.For both feelings Condition, network side can not all confirm whether UE received correctly above-mentioned TDD reconfiguration information.According to counter method, or inside Other algorithms, if network side determine will again to above-mentioned UE send TDD reconfigure notice, should as early as possible again to the UE hair It send.Correctly received in view of other UE, and new TDD is begun to use to configure, network side needs to consider no above-mentioned correctly connect The UE of receipts can monitor PDCCH channel in which subframe, retransmitting above-mentioned TDD to above-mentioned UE and reconfigure notice as early as possible.If it is Reduction complexity, the re-transmission that can limit network side occur on fixed downlink subframe, and above-mentioned fixed downlink subframe is 0# Preceding several orthogonal frequency division multiplexing (Orthogonal Frequency Division where frame/5# subframe/1# subframe DwPTS Multiplexing, OFDM) symbol position/6# subframe DwPTS where preceding several OFDM symbols position.
When retransmission, network side needs to identify whether it is any one in the method transmitted for the first time using three kinds, comes Informing that the TDD of UE current transmission reconfigures notice is not to transmit for the first time.Preferably, when retransmission, network side utilizes DCI information It is not to send for the first time to identify above-mentioned TDD to reconfigure notice.Preferably, when retransmission, TDD reconfigures notice MAC CE needs Including UL Grant, the given resource transmission feedback information of UL Grant can use after being properly received so as to UE.
Step S808:UE receives the TDD retransmitted and reconfigures notice, if being properly received, is fed back in designated position.
UE receives the TDD reconfiguration information retransmitted, if be correctly decoded, no matter whether receives above-mentioned re-transmission in the past Above-mentioned TDD oneself is successfully decoded all in accordance with the new MAC layer denoting signaling of resource transmission in UL Grant in TDD reconfiguration information, UE Reconfigure notice.If thering is the above-mentioned TDD reconfiguration information of mark not send for the first time in discovery DCI information when UE decodes PDCCH Mark, UE do not send the HARQ feedback of the MAC PDU received.And UE reconfigures notice in the TDD that above-mentioned re-transmission is successfully decoded Afterwards, it immediately begins to reconfigure TDD uplink/downlink configuration indicated in notice using above-mentioned TDD.Network side is receiving above-mentioned re-transmission TDD reconfigure the feedback that is successfully received of notice after, also can be used above-mentioned TDD reconfigure on TDD indicated in notice/ Downstream arrangements carry out the above-mentioned UE of normal consistency.
Example IV
Figure 11 be according to embodiments of the present invention four LTE system in random access procedure schematic diagram competition-based, such as scheme Shown in 11, first step UE will send random access preamble (Random Access Preamble) to eNB, and eNB is received to be connect at random Enter it is leading after, can to the UE send random access response (RAR) message.UE can after having sent random access preamble 3 subframes Begin listening for PDCCH channel.If UE corresponds to the Preamble sequence of oneself, UE meeting in the RAR message that subframe n has successfully received Quilt in third step is transmitted in Msg3, above-mentioned Msg3 i.e. Figure 11 in first after 6 subframes or second UL subframe The transmission (Scheduled Transmission) of scheduling.
If network side has enabled dynamic TDD function, then current area when UE executes above-mentioned random access procedure In be in RRC connection status support dynamic TDD function other UE use TDD uplink/downlink configuration and be carrying out The UE of above-mentioned random access procedure is different, and in order to guarantee the success rate of random access procedure, needs to provide, UE and network side When executing random process, carried out according to the TDD uplink/downlink configuration notified in system message or RRC reconfiguration message.Specifically , that is, after UE receives random access response (Random Accesss Response), be reconfigured according to system message or RRC Set the transmission that the TDD uplink/downlink configuration notified in message carries out Msg3；The TDD uplink/downlink that network side is notified according to system message Configuration carries out the transmission of RAR and the reception of Msg3.
Embodiment five
Figure 12 is that according to embodiments of the present invention five dynamic changes the preferred flow charts two of TDD uplink/downlink configuration method, such as Shown in Figure 12, this method comprises the following steps:
Step S1202:UE, which is received, is used to indicate dynamic TDD configuration enabled signaling or UE first in current RRC connection The secondary TDD that receives reconfigures notice.
It is above-mentioned to be used to indicate that the enabled signaling of dynamic TDD configuration can use MAC CE or RRC signaling is carried.Such as Message (RRCConnectionSetup) and/or RRC connection reconfiguration message are established in RRC connection (RRCConnectionReconfiguration) and/or RRC connection re-establishment message (RRCConnectionReestablishment) it is added and is used to indicate the enabled information element of dynamic TDD configuration, for notifying UE starts to execute dynamic TDD configuration.Or a kind of MAC CE can be designed to carry the enabled letter of above-mentioned instruction dynamic TDD configuration It enables.
Step S1204: the down physical layer measurement of UE, the reception and transmission of SPS scheduling, and periodicity CQI/ are limited Reporting for PMI/RI/SRS can only execute in fixed subframe.
Since signaling may lose or false retrieval in dynamic TDD configuration, the current TDD configuration for causing UE to understand may be with it His UE understands and network side wishes that UE is used not identical, thus UE may think that some sub-frame of uplink be downlink subframe and It goes to execute measurement, to influence the measurement result of UE, UE may also think that some downlink subframe is sub-frame of uplink and is sent, Interference not only is generated to the reception of other UE, but also scheduling of the network side to oneself may also be missed.
Therefore it is influenced to reduce these abnormal phenomenon brings, when UE receives TDD weight for the first time in current RRC connection Configuration notification or UE are received be used to indicate the enabled signaling of dynamic TDD configuration after, limiting UE can only be on fixed downlink subframe Downlink measurement is executed, above-mentioned fixed downlink subframe is 0# subframe, 5# subframe, preceding several orthogonal frequencies where the DwPTS of 1# subframe Divide the DwPTS institute of multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol and 6# subframe Several OFDM symbols before；And/or restriction UE can only be executed on periodicity CQI/PMI/RI/SRS on fixed sub-frame of uplink Report, above-mentioned fixed sub-frame of uplink are the rear several OFDM symbols and 2# subframe where the UpPTS of 1# subframe；If and/or limiting half The subframe of static continuous dispatching (SPS) downlink transfer becomes sub-frame of uplink, then downlink UE nearest after above-mentioned sub-frame of uplink The position identical DL assignment of frame or nearest fixation downlink subframe receives or skips the SPS downlink transmission of the subframe It receives；If and/or the subframe of semi-static continuous dispatching (SPS) uplink of restriction becomes downlink subframe, the UE subframe position It does not send or identical UL Grant of nearest sub-frame of uplink after above-mentioned downlink subframe or nearest fixation sub-frame of uplink It sets and is sent.
Step S1206:UE, which is received, is used to indicate the signaling that dynamic TDD configuration terminates, and cancels and measuring downlink, SPS scheduling Reception and transmission, and the limitation that periodicity CQI/PMI/RI/SRS is reported, and using on the TDD notified in broadcast message/ Downstream arrangements.
The signaling that above-mentioned instruction dynamic TDD configuration terminates can use MAC CE or RRC signaling is carried.Such as RRC Connection reconfiguration signaling and/or RRC Connection Release signaling (RRCConnectionRelease).UE receives above-mentioned instruction dynamic TDD When configuring the signaling terminated, downlink is measured in step S802 by cancelling, the reception and transmission of SPS scheduling, and periodically The limitation that CQI/PMI/RI/SRS is reported.
In another embodiment, a kind of software is additionally provided, the software is for executing above-described embodiment and preferred reality Apply technical solution described in example.
In another embodiment, a kind of storage medium is additionally provided, above-mentioned software is stored in the storage medium, it should Storage medium includes but is not limited to CD, floppy disk, hard disk, scratch pad memory etc..
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (37)

1. a kind of Time Division Duplex TDD configures update method characterized by comprising
Terminal UE receives TDD and reconfigures notice media access control MAC control element CE, wherein comprising referring in the MAC CE Show the information of TDD configuration；
The terminal is fed back in designated position, and the scheduled duration after receiving the MAC CE, begins to use institute State the TDD configuration indicated in MAC CE；
Wherein, the information comprising instruction TDD configuration in the MAC CE includes: to configure in the MAC CE comprising TDD uplink/downlink Serial number；
Further include at least one of in the MAC CE:
Indicate the information of the scheduled duration；
For identifying whether the MAC CE is the marker sent for the first time；
Uplink authorizes UL Grant, is used to indicate the designated position.
2. the method according to claim 1, wherein the designated position includes at least one of:
The MAC CE that the end-on receives carries out the position of hybrid automatic repeat-request HARQ feedback；
The position of the UL Grant instruction；
The position of default sub-frame of uplink.
3. the method according to claim 1, wherein the UL Grant indicate the designated position rule with Determine that rule used in the position of scheduled transmission is identical according to the UL Grant in random access response.
4. the method according to claim 1, wherein the scheduled duration is at least one in the following manner really It is fixed:
Predefine the scheduled duration；
The scheduled duration is determined according to the information for the instruction scheduled duration for including in the MAC CE.
5. the method according to claim 1, wherein being gone back in the terminal before designated position is fed back Include:
The terminal obtains the domain R of the corresponding MAC subheader of the MAC CE, wherein the R of the corresponding MAC subheader of the MAC CE Whether domain is used to be to send to be identified for the first time to the MAC CE.
6. the method according to claim 1, wherein being gone back in the terminal before designated position is fed back Include:
The terminal receives Downlink Control Information DCI, wherein the DCI includes for identifying present physical DSCH Downlink Shared Channel Whether the information of the MAC CE and the instruction TDD configuration that include in the information transmitted on PDSCH send for the first time Identification information.
7. according to the method described in claim 6, it is characterized in that, after the terminal receives DCI, further includes:
In the case where the information that the DCI identifies the instruction TDD configuration is not to send for the first time, the terminal is not transmitted and received HARQ feedback corresponding to the MAC CE arrived.
8. according to claim 1, method described in any one of 5,6,7, which is characterized in that
If the terminal receives the MAC CE in current radio resource control RRC connection for the first time, the terminal is executed At least one limitation below:
Physical layer descending measurement is limited on preset downlink subframe and executes by the terminal；
The terminal is by periodic channel quality instruction CQI/ pre-coding matrix instruction PMI/ order instruction RI/ channel detection with reference to letter Number SRS transmission, which is limited on preset sub-frame of uplink, to be executed；
If the subframe of semi-static continuous dispatching SPS downlink transmission becomes sub-frame of uplink, the terminal skips the subframe SPS downlink transmission receives, alternatively, downlink subframe or nearest default downlink that the terminal is nearest after the sub-frame of uplink The identical downlink assignment position DL assignment of frame receives the SPS downlink transmission；
If the subframe of SPS uplink becomes downlink subframe, the terminal is without the SPS uplink, Huo Zhesuo State the position identical UL Grant of terminal sub-frame of uplink nearest after the downlink subframe or nearest default sub-frame of uplink into The row SPS uplink.
9. the method according to claim 1, wherein being gone back before terminal reception TDD reconfigures notice MAC CE Include:
The terminal, which receives, is used to indicate the first enabled signaling of the TDD configuration update method.
10. according to the method described in claim 9, it is characterized in that, first signaling is carried out using MAC CE or RRC signaling Carrying.
11. according to the method described in claim 9, it is characterized in that, terminal receive TDD reconfigure notice MAC CE after, Further include:
In the case where the terminal receives first signaling, the terminal executes at least one following limitation:
Physical layer descending measurement is limited on preset downlink subframe and executes by the terminal；
Periodical CQI/PMI/RI/SRS transmission is limited on preset sub-frame of uplink and executes by the terminal；
If the subframe of SPS downlink transmission becomes sub-frame of uplink, the SPS downlink transmission that the terminal skips the subframe is connect It receives, alternatively, the identical DL of terminal downlink subframe nearest after the sub-frame of uplink or nearest default downlink subframe The position assignment receives the SPS downlink transmission；
If the subframe of SPS uplink becomes downlink subframe, the terminal is without the SPS uplink, Huo Zhesuo State the position identical UL Grant of terminal sub-frame of uplink nearest after the downlink subframe or nearest default sub-frame of uplink into The row SPS uplink.
12. according to the method described in claim 9, it is characterized in that, being used to indicate the TDD configuration more in terminal reception After the first enabled signaling of new method, further includes:
In the case where the terminal executes random access procedure and the terminal receives random access response RAR, the terminal Scheduled transmission is sent according to the TDD uplink/downlink configuration notified in system message or RRC reconfiguration message.
13. according to the method described in claim 8, it is characterized in that, after the terminal executes at least one above-mentioned limitation, Further include:
In the case where receiving the second signaling for being used to indicate TDD configuration update end, the terminal cancels the terminal The limitation.
14. according to the method for claim 11, which is characterized in that the terminal execute at least one above-mentioned limitation it Afterwards, further includes:
In the case where receiving the second signaling for being used to indicate TDD configuration update end, the terminal cancels the terminal The limitation.
15. according to the method for claim 13, which is characterized in that second signaling using MAC CE or RRC signaling into Row carrying.
16. according to claim 1 to the method described in any one of 7,9-15, which is characterized in that the terminal is in designated position Carrying out feedback includes:
The terminal sends the HARQ feedback to Medium Access Control (MAC) Protocol Data Unit PDU in the designated position, wherein the MAC PDU MAC PDU where the MAC CE that receives；Alternatively,
The terminal sends the MAC layer signaling for indicating to be properly received the MAC CE to network side.
17. according to the method described in claim 8, it is characterized in that, the terminal designated position carry out feedback include:
The terminal sends the HARQ feedback to Medium Access Control (MAC) Protocol Data Unit PDU in the designated position, wherein the MAC PDU MAC PDU where the MAC CE that receives；Alternatively,
The terminal sends the MAC layer signaling for indicating to be properly received the MAC CE to network side.
18. according to claim 1 to the method described in any one of 7,9-15, which is characterized in that the scheduled duration is less than wide Broadcast Control BCCH channel changes the period.
19. according to the method described in claim 8, it is characterized in that, the scheduled duration is less than BCCH channel of broadcast control more Change the period.
20. according to right want 16 described in method, which is characterized in that the scheduled duration less than BCCH channel of broadcast control change Period.
21. a kind of Time Division Duplex TDD configures update method characterized by comprising
Network side sends TDD and reconfigures notice media access control MAC control element CE, wherein comprising referring in the MAC CE Show the information of TDD configuration；
The network side receives the feedback that terminal UE is properly received the MAC CE in designated position, then the network side confirmation Scheduled duration of the terminal after receiving the MAC CE begins to use the TDD indicated in the MAC CE to configure；
Wherein, the information comprising instruction TDD configuration in the MAC CE includes: to configure in the MAC CE comprising TDD uplink/downlink Serial number；
Further include at least one of in the MAC CE:
Indicate the information of the scheduled duration；
For identifying whether the MAC CE is the marker sent for the first time；
Uplink authorizes UL Grant, is used to indicate the designated position.
22. according to the method for claim 21, which is characterized in that do not receive terminal in designated position in the network side In the case where the feedback for being properly received the MAC CE, the method also includes:
The network side decides whether to retransmit the MAC CE.
23. according to the method for claim 21, which is characterized in that the designated position includes at least one of:
The MAC CE that the end-on receives carries out the position of hybrid automatic repeat-request HARQ feedback；
The position of the UL Grant instruction；
The position of default sub-frame of uplink.
24. according to the method for claim 21, which is characterized in that the UL Grant indicates the rule of the designated position It is identical as rule used in the position for determining scheduled transmission according to the UL Grant in random access response.
25. according to the method for claim 21, which is characterized in that the scheduled duration is at least one in the following manner really It is fixed:
Predefine the scheduled duration；
The scheduled duration is determined according to the information for the instruction scheduled duration for including in the MAC CE.
26. the method according to any one of claim 21 to 25, which is characterized in that network side transmission TDD reconfigures logical Know MAC CE further include:
Whether the network side is to send to carry out for the first time to the MAC CE using the domain R of the corresponding MAC subheader of the MAC CE Mark.
27. the method according to any one of claim 21 to 25, which is characterized in that network side transmission TDD reconfigures logical Know MAC CE further include:
The network side sends Downlink Control Information DCI, wherein the DCI includes for identifying the shared letter of present physical downlink Whether the information of the MAC CE and the instruction TDD configuration that include in the information transmitted on road PDSCH are to send for the first time Identification information.
28. the method according to any one of claim 21 to 25, which is characterized in that the network side connects in designated position It receives terminal and is properly received the feedback of the MAC CE and include:
The network side reads that accord with ACK anti-in the MAC CE that receives that the designated position receives that the terminal sends really Feedback；And/or
The network side receives the MAC layer signaling for indicating to be properly received the MAC CE in the designated position.
29. the method according to any one of claim 21 to 25, which is characterized in that send TDD in network side and reconfigure After notice MAC CE, further includes:
In the case where executing random access procedure, the TDD uplink/downlink configuration that the network side is notified according to system message is carried out The transmission of random access response RAR and reception to scheduled transmission.
30. the method according to any one of claim 21 to 25, which is characterized in that the scheduled duration is less than broadcast control BCCH channel processed changes the period.
31. according to the method for claim 26, which is characterized in that the scheduled duration is less than BCCH channel of broadcast control more Change the period.
32. according to the method for claim 27, which is characterized in that the scheduled duration is less than BCCH channel of broadcast control more Change the period.
33. according to the method for claim 28, which is characterized in that the scheduled duration is less than BCCH channel of broadcast control more Change the period.
34. according to the method for claim 29, which is characterized in that the scheduled duration is less than BCCH channel of broadcast control more Change the period.
35. a kind of Time Division Duplex TDD configures updating device, it is located in terminal UE characterized by comprising
Receiving module reconfigures notice media access control MAC control element CE for receiving TDD, wherein in the MAC CE Information comprising instruction TDD configuration；
Execution module, for being fed back in designated position, and the scheduled duration after receiving the MAC CE, start to make With the TDD configuration indicated in the MAC CE；
Wherein, the information comprising instruction TDD configuration in the MAC CE includes: to configure in the MAC CE comprising TDD uplink/downlink Serial number；
Further include at least one of in the MAC CE:
Indicate the information of the scheduled duration；
For identifying whether the MAC CE is the marker sent for the first time；
Uplink authorizes UL Grant, is used to indicate the designated position.
36. a kind of Time Division Duplex TDD configures updating device, it is located at network side characterized by comprising
Sending module reconfigures notice media access control MAC control element CE for sending TDD, wherein in the MAC CE Information comprising instruction TDD configuration；
Confirmation module, for receiving the feedback that terminal UE is properly received the MAC CE in designated position, then the network side Confirm scheduled duration of the terminal after receiving the MAC CE, the TDD indicated in the MAC CE is begun to use to match It sets；
Wherein, the information comprising instruction TDD configuration in the MAC CE includes: to configure in the MAC CE comprising TDD uplink/downlink Serial number；
Further include at least one of in the MAC CE:
Indicate the information of the scheduled duration；
For identifying whether the MAC CE is the marker sent for the first time；
Uplink authorizes UL Grant, is used to indicate the designated position.
37. a kind of Time Division Duplex TDD configures more new system, which is characterized in that including being located at terminal as claimed in claim 35 It is located at the system that the TDD configuration updating device of network side is constituted described in the TDD configuration updating device and claim 36 of side.
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