CN103516498B - The update method and device of TDD uplink-downlink configurations - Google Patents
The update method and device of TDD uplink-downlink configurations Download PDFInfo
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- CN103516498B CN103516498B CN201210205222.8A CN201210205222A CN103516498B CN 103516498 B CN103516498 B CN 103516498B CN 201210205222 A CN201210205222 A CN 201210205222A CN 103516498 B CN103516498 B CN 103516498B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
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Abstract
The invention discloses a kind of update methods and device of TDD uplink-downlink configurations.Wherein, this method includes：UE sends in each TDD reconfiguration informations and receives TDD reconfiguration informations at opportunity；If UE is reconfigured in current TDD and received newer TDD reconfiguration informations in the period, UE reconfigures the period from next TDD and begins to use TDD uplink-downlink configurations indicated by newer TDD reconfiguration informations；If UE is reconfigured in current TDD and is not received by newer TDD reconfiguration informations in the period, UE is continuing with current TDD in next TDD reconfigures the period and reconfigures TDD uplink-downlink configurations used in the period.By the invention it is possible to which the TDD uplink-downlink configurations that a cell uses are adjusted flexibly.
Description
Technical field
The present invention relates to the communications fields, in particular to a kind of time division duplex（TDD）The update method of uplink-downlink configuration
And device.
Background technology
Current long term evolution（LTE, Long Term Evolution）Technology, micro-wave access to global intercommunication（Wimax,
Worldwide Interoperability for Microwave Access）, super mobile broadband（UMB, Ultra
Mobile Broadband）All there are two types of duplex modes for system：Frequency division duplex（FDD, Frequency Division Duplex）
Mode and time division duplex（TDD, Time Division Duplex）Mode.Under FDD modes, uplink and downlink are adopted
It is carried out at the same time data transmission with different frequency bands, and under TDD modes, uplink and downlink use identical frequency band point
When carry out data transmission.
With radio frames（Radio Frame）In the wireless system carried out data transmission for unit, radio open transmission
Uplink and downlink are usually that data are transmitted as unit of radio frames, wherein each radio frames are by several
Subframe（Subframe）Composition.For LTE system, subframe is with orthogonal frequency division multiplexing（OFDM, Orthogonal
Frequency Division Multiplexing）Symbol（Symbol）For base unit, each radio frames are by 10 subframe groups
At.
The resource allocation of the uplink/downlink subframe of FDD system is relatively independent, you can with to downlink subframe and sub-frame of uplink
Resource allocation is carried out respectively.It can be needed several sons in radio frames according to a certain percentage according to business in TDD system
Frame is assigned as sub-frame of uplink and downlink subframe respectively.Under normal circumstances, in TDD system sub-frame of uplink and downlink subframe number ratio
Example has several species, to meet the needs of different service types.According to the demand of different regions type of service, select appropriate
Uplink and downlink proportional arrangement is conducive to improve the spectrum efficiency of TDD system.For example, for the more area of downloading data business,
It can select the configuration more than downlink subframe；For uploading the more area of business, it can select sub-frame of uplink is more to match
It sets；The area for comparing balance for upper download portfolio, can 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, often
Kind mode is properly termed as a TDD uplink-downlink configurations mark, as shown in the first row of table 1.In table 1, a radio frames include
10 subframes, subframe numbers are respectively labeled as：0,1,2,3,4,5,6,7,8,9, wherein " 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, protects
Shield interval and uplink part.For example, when TDD uplink-downlink configurations are identified as 1, i.e. TDD uplink-downlink configurations 1：One radio frames
In the 0,4,5,9th work song frame be downlink subframe；1,6th work song frame is special subframe；2,3,7,8th work song frame is sub-frame of uplink.
Table 1：Existing uplink-downlink configuration list in TD-LTE system
Table 1 is as can be seen that downlink transfer accounts for the percentage of time of all transmission from 40% to 90%, using this uplink and downlink
Frame ratio setting mainly considers that downstream data traffic is typically more than upstream data service in multimedia service till now.
In current LTE technologies, network side passes through system information block（SIB, System Information Block）1 message
Broadcast the TDD uplink-downlink configurations of this cell.Wherein, the transmission cycle of SIB1 is 80ms, also, in order to ensure Cell Edge User
Be properly received, can be repeated 3 times identical transmission in a transmission cycle.
In the prior art, in addition to earthquake and typhoon warning system（Earthquake and Tsunami Warning
System, ETWS）It alerts and services with commercial mobile telephone（Commercial Mobile Alert Service, CMAS）, network
Side can only could change system information in specific radio frames.Fig. 1 is that system information changes schematic diagram in existing TD-LTE system,
In n-th of broadcast control channel（Broadcast Control Channel, BCCH）Change cycle, i.e. BCCH change cycles（n）
In, if hatching styles will change for the system information represented by nicking in (n+1)th BCCH change cycle, become
Hatching styles are dotted represented system information, then network side is needed in BCCH change cycles（n）Period notifies UE that some is
System information will change in next BCCH change cycles, and instruction UE gets out opening in next BCCH change cycles
Begin to receive newer system information.It therefore, can only be in the boundary of BCCH change cycles when network side needs to change system information
Change, and needs to inform that UE system messages will change in next BCCH change cycles using paging message in advance.But
Be, in the meantime, due to uplink-downlink configuration change not in time, may cause actually downlink business ratio with it is currently used
The unmatched situation of TDD ascending-descending subframes ratios.For example, current area uses TDD uplink-downlink configurations 4, ascending-descending subframes ratio
It is 1:4, if intra-cell uplink business increases in certain period, uplink service may be caused not enough to prolong due to ascending resource
Late, and cause part downlink resource idle, wasted so as to cause downlink resource.
Invention content
The problem of for TDD uplink-downlink configurations that a cell uses cannot be adjusted flexibly, the present invention provides a kind of TDD
The update of uplink-downlink configuration, the notification method and device of TDD reconfiguration informations, at least to solve the above problems.
According to an aspect of the invention, there is provided a kind of time division duplex（TDD）The update method of uplink-downlink configuration, packet
It includes：User equipment (UE) sends in each TDD reconfiguration informations and receives TDD reconfiguration informations at opportunity；If the UE is current
TDD, which is reconfigured, receives newer TDD reconfiguration informations in the period, then the UE makes since next TDD reconfigures the period
With the TDD uplink-downlink configurations indicated by the newer TDD reconfiguration informations；If the UE reconfigures the period in current TDD
Newer TDD reconfiguration informations are inside not received by, then the UE is continuing with currently in next TDD reconfigures the period
TDD reconfigures TDD uplink-downlink configurations used in the period.
Preferably, the TDD reconfigures the minimum interval that the TDD uplink-downlink configurations that the period is TDD system change.
Preferably, the TDD reconfiguration informations are carried by one of following message：System information block type 1SIB1 message；
The system information block SIB message defined for the TDD reconfiguration informations.
Preferably, when the TDD reconfiguration informations are carried on the SIB1 message, the TDD reconfiguration informations are sent
Opportunity is the opportunity that the SIB1 message is sent.
Preferably, when the TDD reconfiguration informations are carried on the SIB message defined for the TDD reconfiguration informations, institute
It states TDD reconfiguration informations and sends the opportunity that the SIB message that opportunity is the definition is sent.
Preferably, the method further includes：The UE receives the paging message from network side, wherein the paging disappears
The instruction whether changed comprising system information in breath；Judged in addition to the TDD reconfiguration informations according to the paging message
Whether other systems message changes, wherein the UE is currently at Idle state and/or connected state.
Preferably, the method further includes：When the system message value label of UE storages disappears with the SIB1 received
When system message value label difference in breath, the UE determine except Master Information Block MIB, SIB1, SIB10, SIB11, SIB12 with
And the other systems information except the SIB message of the carrying TDD reconfiguration informations is invalid.
Preferably, the method further includes：The UE obtains the finger that the TDD reconfigures the period one of in the following manner
Show parameter：The UE obtains the instruction parameter that the TDD reconfigures the period from the TDD reconfiguration informations；The UE is from connecing
The instruction parameter that the TDD reconfigures the period is obtained in the paging message received；The UE is from downlink dedicated control channel DL-
The instruction parameter that the TDD reconfigures the period is obtained in the signaling of DCCH logic channels.
Preferably, the TDD reconfiguration informations include following one：TDD uplink-downlink configurations identify；Institute in one radio frames
There is the uplink-downlink configuration of subframe.
Preferably, the TDD reconfiguration informations further include following one：TDD reconfigures the period；TDD reconfigure the period and
Deviant.
Preferably, in UE before each TDD reconfiguration informations send and receive TDD reconfiguration informations at opportunity, the side
Method further includes：The UE reports the UE that TDD is supported to reconfigure function when reporting UE abilities to network side.
Preferably, in UE before each TDD reconfiguration informations send and receive TDD reconfiguration informations at opportunity, the side
Method further includes：Laterally information is opened in the UE transmissions to the network, is controlled the UE unlatchings TDD and is reconfigured function.
Preferably, the method further includes：Laterally the UE sends pass information to the network, controls described in the UE closings
TDD reconfigures function.
According to a further aspect of the invention, a kind of updating device of Time Division Duplex TDD uplink-downlink configuration is provided, is located at
User equipment, including：Receiving module receives TDD reconfiguration informations for being sent in each TDD reconfiguration informations at opportunity；Sentence
Disconnected module, for judging that the receiving module reconfigures whether the TDD reconfiguration informations received in the period are more in current TDD
Newly；Execution module receives TDD reconfiguration informations and has update for being reconfigured in current TDD in the receiving module in the period
When, it reconfigures the period from next TDD and begins to use TDD uplink-downlink configurations indicated by the newer TDD reconfiguration informations,
And in the receiving module when current TDD is reconfigured and received TDD reconfiguration informations in the period and do not update, next
TDD, which is reconfigured, to be continuing with current TDD and reconfigures TDD uplink-downlink configurations used in the period in the period.
Preferably, the TDD reconfigures the minimum interval that the TDD uplink-downlink configurations that the period is TDD system change.
Preferably, the TDD reconfiguration informations are carried by one of following message：System information block type 1SIB1 message；
The SIB message defined for the TDD reconfiguration informations.
Preferably, the receiving module is additionally operable to receive the paging message from network side, wherein in the paging message
Including the instruction whether system information changes；The judgment module is additionally operable to be judged except TDD weights according to the paging message
Whether the other systems message except configuration information changes.
Preferably, described device further includes：Acquisition module is reconfigured for obtaining the TDD one of in the following manner
The instruction parameter in period：The instruction parameter that the TDD reconfigures the period is obtained from the TDD reconfiguration informations；From receiving
Paging message in obtain the instruction parameter that the TDD reconfigures the period；From downlink dedicated control channel DL-DCCH logic channels
Signaling in obtain the instruction parameter that the TDD reconfigures the period.
Preferably, described device further includes：Reporting module for when reporting UE abilities to network side, while reporting institute
Stating UE supports TDD to reconfigure function.
Preferably, described device further includes：Control module, the on or off information for being issued according to network side, open or
The TDD for closing the UE reconfigures function.
Through the invention, UE can send opportunity reception TDD reconfiguration informations in TDD reconfiguration informations, and according to reception
To reconfiguration information whether there is update to judge to reconfigure the configuration up and down used in the period in next TDD, rather than restriction
Change uplink-downlink configuration in the boundary of BCCH change cycles, so as to realize the dynamic configuration of TDD, improves TDD uplink and downlinks
The frequency of configuration change, and then avoid TDD uplink-downlink configurations and mismatched with current uplink and downlink portfolio and lead to traffic delay
And/or the problem of wasting of resources.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the schematic diagram that system information changes in existing TD-LTE system；
Fig. 2 is the flow chart of the update method of according to embodiments of the present invention one TDD uplink-downlink configurations；
Fig. 3 is the structural schematic diagram of the updating device of according to embodiments of the present invention two TDD uplink-downlink configurations；
Fig. 4 is the structure of the updating device of the TDD uplink-downlink configurations of according to embodiments of the present invention two preferred embodiment
Schematic diagram；
Fig. 5 is the updating device of the TDD uplink-downlink configurations of according to embodiments of the present invention two another preferred embodiment
Structural schematic diagram；
Fig. 6 is the updating device of the TDD uplink-downlink configurations of according to embodiments of the present invention two another preferred embodiment
Structural schematic diagram；
Fig. 7 is the according to embodiments of the present invention three newer flow chart of TDD uplink-downlink configurations；
Fig. 8 is the according to embodiments of the present invention four newer flow chart of TDD uplink-downlink configurations；
Fig. 9 is the according to embodiments of the present invention five newer flow chart of TDD uplink-downlink configurations；
Figure 10 is the according to embodiments of the present invention six newer flow chart of TDD uplink-downlink configurations.
Specific implementation mode
Come that the present invention will be described in detail below with reference to attached drawing and in conjunction with the embodiments.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.
Embodiment one
Fig. 2 is the flow chart of the update method of TDD uplink-downlink configurations according to the ... of the embodiment of the present invention, as shown in Fig. 2, the party
Method mainly includes the following steps that：
Step S202, UE sends in each TDD reconfiguration informations and receives TDD reconfiguration informations at opportunity.
In a preferred embodiment of the embodiment of the present invention, the TDD reconfiguration informations can utilize system information
Block type 1（System Information Block Type 1, SIB1）Message bearing, when TDD reconfiguration informations are sent at this time
Machine is the opportunity that SIB1 message is sent.
Alternatively, in another preferred embodiment of the embodiment of the present invention, the TDD reconfiguration informations also utilize new
System information block（SIB, System Information Block）Message（The SIB message that as TDD reconfiguration informations define）
Carrying, the opportunity that TDD reconfiguration informations are sent at this time are the opportunity that new SIB message is sent.
When the TDD reconfiguration informations utilize new SIB message bearings or SIB1 message bearings, new SIB message
Either SIB1 message can change repeatedly i.e. new SIB message or SIB1 message at one in a BCCH change cycle
It can send and change repeatedly in BCCH change cycles.
In embodiments of the present invention, since UE is to monitor on each TDD reconfiguration informations transmission opportunity and attempt to receive to hold
The SIB message of TDD reconfiguration informations is carried, by the TDD reconfiguration informations received, UE may determine that TDD reconfiguration informations are
No change, therefore, in embodiments of the present invention, network side need not notify UE by paging message：TDD reconfiguration informations are
No change.Therefore, in a preferred embodiment of the embodiment of the present invention, paging message be used for in Idle state and/or
The UE of connected state notifies the change of the other systems message other than TDD reconfiguration informations.In the preferred embodiment, UE
When receiving paging message, according to the instruction whether system information for including in paging message changes, judge to reconfigure except TDD
Whether the other systems message except information changes.
In the prior art, in addition to Master Information Block（Master Information Block, MIB）、SIB1、SIB10、
When other systems information except SIB11 and SIB12 message changes, the system information value label in SIB1 message
（SystemInfoValueTag）Also it can accordingly change, add up, for example, in TD-LTE system, the value is shared
32.In order to ensure it is certain be detached from MPS process UE checked after returning to cell oneself storage the cell system information whether
Effectively, UE can by read SIB1 message in SystemInfoValueTag compare oneself storage the value it is whether identical,
If it is different, then re-reading system information；If it is identical, and the system information stored is not above 3 hours, then it is assumed that storage
System message is still effective.Therefore in three hours, the SystemInfoValueTag in SIB1 cannot have repetition, i.e., 3
Other systems information in hour other than MIB, SIB1, SIB10, SIB11, SIB12 at most changes 31 times.
And in embodiments of the present invention, since the change number of TDD reconfiguration informations is unrestricted, TDD is reconfigured
The change of information will not cause system message value label to change, therefore, when the TDD reconfiguration informations utilize new SIB
When message bearing, in a preferred embodiment of the embodiment of the present invention, when the system message value label of UE storages
（SystemInfoValueTag）When with difference in SIB1 message, UE then thinks in addition to MIB, SIB1, SIB10, SIB11,
Other systems information except the SIB message of SIB12 and carrying TDD reconfiguration informations is invalid.
Step S204, judge UE reconfigures newer TDD reconfiguration informations whether are received in the period currently, if UE is working as
Before reconfigure when receiving newer TDD reconfiguration informations in the period, go to step S206；If UE is reconfigured in the period currently
When not receiving newer TDD reconfiguration informations, step S208 is gone to.
In embodiments of the present invention, TDD reconfigures the minimum interval that the TDD uplink-downlink configurations that the period is TDD system change,
The minimum interval is generally less than BCCH change cycles.
In a preferred embodiment of the embodiment of the present invention, UE can obtain TDD one of in the following manner and re-match
Set the instruction parameter in period：
（1）The instruction parameter that the TDD reconfigures the period is obtained from the TDD reconfiguration informations；
（2）The instruction parameter that the TDD reconfigures the period is obtained from the paging message received；
（3）From downlink dedicated control channel（DL-DCCH）The TDD is obtained in the signaling of logic channel reconfigures the period
Indicate parameter.
In a preferred embodiment of the embodiment of the present invention, the TDD reconfiguration informations include：TDD uplink/downlink is matched
Mark is set, for example, 7 in above-mentioned table a kind uplink-downlink configuration identifies；Alternatively, the uplink/downlink of all subframes is matched in a radio frames
It sets, in this way, uplink-downlink configuration can be not limited to 7 kinds of uplink-downlink configurations in table 1, and network side can define new upper
Downstream arrangements.
Preferably, the TDD reconfiguration informations can also include following one：
（1）TDD reconfigures the period, and the boundary that TDD reconfigures the period at this time is that the SFN values of radio frames reconfigure week to TDD
Phase modulo operation is the initial position for the radio frames that result is 0；
（2）TDD reconfigures period and deviant, and the boundary that TDD reconfigures the period at this time is the SFN values of radio frames to TDD
The initial position for the radio frames that period modulo operation result is deviant is reconfigured, or TDD reconfigures the boundary in period at this time
For ten times of SFN values of radio frames plus subframe numbers and to reconfigure period modulo operation result to TDD be the wireless of deviant
The initial position of the corresponding subframe of the subframe numbers of frame.
Step S206, UE reconfigure the period from next TDD and begin to use the newer TDD reconfiguration informations institute received
The sub-frame configuration of instruction（Also referred to as TDD uplink-downlink configurations）.
Step S208, UE are continuing with current TDD in next TDD reconfigures the period and reconfigure son used in the period
Frame configures.
In a preferred embodiment of the embodiment of the present invention, UE can be when reporting UE abilities, simultaneously to network side
Report the UE that TDD is supported to reconfigure function.
In a preferred embodiment of the embodiment of the present invention, network side can by UE send ON/OFF information come
Control UE is turned on and off TDD and reconfigures function.
The above method provided through the embodiment of the present invention, UE can send opportunity reception TDD weights in TDD reconfiguration informations
Configuration information, and whether there is update to judge to reconfigure in next TDD and used in the period according to the reconfiguration information received
Configuration up and down, rather than the boundary for being limited to BCCH change cycles changes uplink-downlink configuration, so as to realize the dynamic of TDD
Configuration improves the frequency that TDD uplink-downlink configurations change, and then avoids TDD uplink-downlink configurations and current uplink and downlink portfolio not
The problem of matching and leading to traffic delay and/or the wasting of resources, also, since network side can refer in TDD reconfiguration informations
The uplink-downlink configuration of all subframes is not limited solely to so as to use flexible uplink-downlink configuration in table 1 in showing one wirelessly
Shown in 7 kinds of uplink-downlink configurations.
Embodiment two
A kind of updating device of TDD uplink-downlink configurations is present embodiments provided, which is located at user equipment, can be used for
Realize the method described in embodiment one.
Fig. 3 is according to the updating device of the TDD uplink-downlink configurations of the embodiment of the present invention, as shown in figure 3, the device includes：
Receiving module 10 receives TDD reconfiguration informations for being sent in each TDD reconfiguration informations at opportunity；Judgment module 20, and connects
It receives module 10 to couple, for judging whether receiving module 10 reconfigures the TDD reconfiguration informations received in the period in current TDD
For update；Execution module 30 is coupled with judgment module 20, is received for being reconfigured in the period in current TDD in receiving module 10
When having update to TDD reconfiguration informations, reconfigures the period from next TDD and begin to use the newer TDD reconfiguration informations
Indicated TDD uplink-downlink configurations, and reconfigured in current TDD in receiving module 10 and receive TDD re-matching confidences in the period
Breath is when updating, and being continuing with current TDD in next TDD reconfigures the period reconfigures TDD used in the period or more
Row configuration.
Preferably, in the present embodiment, TDD reconfigure the period be TDD system TDD uplink-downlink configurations change minimum between
Every in the preferred embodiment of the embodiment of the present invention, TDD reconfigures the period less than BCCH change cycles.
In a preferred embodiment of the embodiment of the present invention, the TDD reconfiguration informations can utilize system information
Block type 1（System Information Block Type 1, SIB1）Message bearing, when TDD reconfiguration informations are sent at this time
Machine is the opportunity that SIB1 message is sent.
Alternatively, in another preferred embodiment of the embodiment of the present invention, the TDD reconfiguration informations also utilize new
System information block（SIB, System Information Block）Message（The SIB message that as TDD reconfiguration informations define）
Carrying, the opportunity that TDD reconfiguration informations are sent at this time are the opportunity that new SIB message is sent.
When the TDD reconfiguration informations utilize new SIB message bearings or SIB1 message bearings, new SIB message
Either SIB1 message can change repeatedly i.e. new SIB message or SIB1 message at one in a BCCH change cycle
It can send and change repeatedly in BCCH change cycles.
In embodiments of the present invention, since UE is to monitor on each TDD reconfiguration informations transmission opportunity and attempt to receive to hold
The SIB message of TDD reconfiguration informations is carried, by the TDD reconfiguration informations received, UE may determine that TDD reconfiguration informations are
No change, therefore, in embodiments of the present invention, network side need not notify UE by paging message：TDD reconfiguration informations are
No change.Therefore, in a preferred embodiment of the embodiment of the present invention, receiving module 10, which is additionally operable to receive, comes from network side
Paging message, wherein the instruction whether changed comprising system information in the paging message；Judgment module 20 is additionally operable to basis
The paging message judges whether the other systems message in addition to the TDD reconfiguration informations changes.
In embodiments of the present invention, since the change number of TDD reconfiguration informations is unrestricted, TDD re-matches confidence
The change of breath will not cause system message value label to change, therefore, when the TDD reconfiguration informations are disappeared using new SIB
When breath carrying, in a preferred embodiment of the embodiment of the present invention, receiving module 10 is additionally operable to receive SIB1 message, and
And when the system message value label of UE storages（SystemInfoValueTag）When with receiving the difference in SIB1 message,
Judgment module 10 is additionally operable to determine in addition to MIB, SIB1, SIB10, SIB11, SIB12 and the SIB for carrying TDD reconfiguration informations
Other systems information except message is invalid.
In a preferred embodiment of the embodiment of the present invention, as shown in figure 4, the device can also include：Obtain mould
Block 40, the instruction parameter for reconfiguring the period for obtaining the TDD one of in the following manner：
（1）The instruction parameter that the TDD reconfigures the period is obtained from the TDD reconfiguration informations；
（2）The instruction parameter that the TDD reconfigures the period is obtained from the paging message received；
（3）From downlink dedicated control channel（DL-DCCH）The TDD is obtained in the signaling of logic channel reconfigures the period
Indicate parameter.
In a preferred embodiment of the embodiment of the present invention, as shown in figure 5, the device can also include：Report mould
Block 50 for when reporting UE abilities to network side, while reporting the UE that TDD is supported to reconfigure function.
In another preferred embodiment of the embodiment of the present invention, as shown in fig. 6, the device can also include：Control
Module 60, the on or off information for being issued according to network side, the TDD for being turned on and off UE reconfigure function.So that net
Network side can be with according to whether when UE execution TDD reconfigures function, control UE be turned on and off TDD and reconfigures function.
In the preferred embodiment of the embodiment of the present invention, the information carried in TDD reconfiguration informations can be such as embodiment
Described in one, specifically repeat no more.
Embodiment three
Fig. 7 is the newer flow chart of TDD uplink-downlink configurations in the present embodiment, as shown in fig. 7, in the present embodiment, UE into
The update of row TDD uplink-downlink configurations mainly includes the following steps that：
Step S701, initialization procedure.
In the present embodiment, TDD reconfiguration informations are carried using SIB1 message, and regulation is when n-th in existing protocol
When compared with (n-1)th change cycle of SIB1 message in BCCH change cycles has change, in (n-1)th change cycle, network
Side is needed with the change for having system information in the paging message notice next BCCH change cycles of UE.And in the present embodiment, when by
The SIB1 message alterations caused by TDD reconfiguration informations, and then when causing to have changing system information in n-th BCCH change,
UE is notified without using paging message, i.e., paging message is only to the UE in Idle state and/or connected state in (n-1)th change cycle
Notify the change of the other systems message other than TDD reconfiguration informations.
In the present embodiment, calculate TDD reconfigure the period parameter can be it is following any one：
（1）TDD reconfigures the period
The boundary that TDD reconfigures the period at this time is that reconfigure period modulo operation to TDD be that result is to the SFN values of radio frames
The initial position of 0 radio frames.For example, being 200 when the TDD that network side provides reconfigures the period, if the then SFN of radio frames
Mod200=0, then the radio frames are the boundary that TDD reconfigures the period, if SFN is those of 0,200,400,600 etc. radio frames
0th work song frame section start is all the boundary that TDD reconfigures the period.
（2）TDD reconfigures period and deviant
The boundary that TDD reconfigures the period at this time is that reconfigure period modulo operation result to TDD be inclined to the SFN values of radio frames
The initial position of the radio frames of shifting value, or SFN values and subframe numbers that TDD reconfigures the period at this time boundary is radio frames are full
The position of sufficient formula one.
（SFN*10+ subframe numbers）The mod periods=deviant（Formula one）
For example, when the period is 200, when deviant is 5, if then the SFN mod 200=5 of radio frames, the radio frames are
TDD reconfigures the boundary in period, and the 0th work song frame section start if SFN is those of 5,205,405,605 etc. radio frames is all
TDD reconfigures the boundary in period.
For another example, it is 2000 when the period, when deviant is 5, meets（SFN*10+ subframe numbers）The radio frames of mod 2000=5
That subframe be to reconfigure the boundary in period, if SFN is 0,200,400,600 those of equal 5th work song frames of radio frames
Section start is all the boundary that TDD reconfigures the period.
And in the present embodiment, UE can be obtained by any one following mode calculates the parameter that TDD reconfigures the period（I.e.
Above-mentioned TDD reconfigures the period or TDD reconfigures period and deviant）：
（1）, TDD reconfigure the period parameter be included in TDD reconfiguration informations in, UE is obtained from TDD reconfiguration informations
TDD reconfigures the parameter in period.For TDD reconfiguration informations by SIB1 message bearings, the UE in Idle state or connected state is necessary
SIB1 message is read, UE is thereby may be ensured that after Idle state enters connected state, just can be configured at once using accurate TDD,
UE will not be caused by and do not know that current TDD reconfigures cycle information and leads to UE can not correctly judge which kind of currently used subframe
The problem of configuration.
（2）, TDD reconfigure the period parameter be included in paging message in, UE obtains TDD from paging message and reconfigures week
The parameter of phase.The parameter letter that the TDD carried using paging message reconfigures the period can be received to ensure UE centainly
Breath, network side must be in all paging frames（Paging Frame, PF）All paging occasions（Paging Occasion, PO）
All send described information.In this way it is also ensured that being in discontinuous reception（Discontinuous Reception, DRX）State
UE will not have been led to miss because of temporary suspend mode and receive TDD and reconfigure the parameter information in period.
（3）, TDD reconfigure the period parameter be included in DL-DCCH（Downlink dedicated control channel）The signaling of logic channel
In, UE obtains the parameter that TDD reconfigures the period from the signaling of DL-DCCH logic channels.TDD reconfigures the parameter information in period
Use condition included in the signaling of DL-DCCH logic channels is that UE is in connected state, is this is to say in the UE of Idle state
The information can not be received.Advantage is that signaling overheads can be saved in this way, it is only necessary to a small number of use in need
Family sends the parameter information that TDD reconfigures the period.UE can also read TDD reconfiguration informations in Idle state, receive TDD
After the parameter information for reconfiguring the period, the TDD reconfiguration informations being successfully received using oneself, by of short duration processing delay
Correct sub-frame configuration can be used afterwards.
Step S702, UE receives a TDD and reconfigures all SIB1 message in the period, and judges whether there is newer
TDD reconfiguration informations.
It should be noted that UE in the present embodiment refers to the UE that there is TDD to reconfigure function.TDD reconfiguration informations
By SIB1 message bearings, then the transmission opportunity of each SIB1 message is the transmission opportunity of TDD reconfiguration informations.When UE is read
When SIB1 message, need to judge whether contain TDD reconfiguration informations in received SIB1 message.The sending cycle of SIB1 message
For 80ms, if TDD reconfigures the period more than 80ms, it is possible to reconfigure in the period and be had more than twice in the same TDD
The transmission of SIB1 message does not carry TDD in certain SIB1 and re-matches confidence if network side considers due to saving signaling overheads
Breath, UE can still have correctly received TDD reconfiguration informations, then can select not carrying TDD re-matchings in certain SIB1 message
Confidence ceases.
If containing TDD reconfiguration informations in the SIB1 message that UE is received, UE also needs to the parameter for combining TDD to reconfigure the period
Information determines whether more TDD reconfiguration informations TDD compared on reconfigures the period in current TDD reconfigures the period
Newly.
The transmission mode that the parameter in period is reconfigured according to TDD in step S701, according to the letter of DL-DCCH logic channels
When order is carried, the UE of Idle state may reconfigure the parameter information in period due to lacking TDD and can not judge in this TDD weights
The TDD reconfiguration informations received in the configuration period reconfigured whether the period is updated compared with last TDD.But such case
Under, network side can handle the UE of Idle state according to traditional UE, and the UE of these Idle state is enabled to use tradition UE's
TDD is configured, and it is information element in SIB1 that these tradition UE, which is used,（Information Element, IE）TDD
Configuration（tdd-Config）In the sub-frame configuration that provides.TDD re-matchings are received after the UE of these Idle state enters connected state
The parameter information in period is set, rapid can judge that current TDD reconfigures which kind of is used according to received TDD reconfiguration informations
Sub-frame configuration and this TDD reconfigure the TDD reconfiguration informations received in the period and reconfigured whether the period has compared with last TDD
It is updated.
In addition, providing in existing protocol, if SIB1 message changes, need to notify user using paging message in advance,
But since the frequency that TDD reconfigures cyclomorphosis is very fast, and the number changed is more, in order to not influence the behaviour of traditional UE
Make, in the present embodiment, paging message is only notified to the user in Idle state and/or connected state in addition to TDD reconfiguration informations
Except other systems message change.
Step S703, UE next TDD reconfigure the period according to judging result use corresponding sub-frame configuration.
According to the judgement in step S702, if this TDD reconfigures the TDD reconfiguration informations received in the period one compared on
TDD reconfigures the period and is updated, and UE reconfigures the period from next TDD and the newer TDD received is begun to use to reconfigure
Sub-frame configuration indicated by information；
This TDD reconfigures the TDD reconfiguration informations received in the period TDD compared on, and to reconfigure cycle phase same, UE from
Next TDD reconfigures the period and is continuing with this TDD and reconfigures sub-frame configuration in the period.
Example IV
Fig. 8 is the newer flow chart of TDD uplink-downlink configurations in the present embodiment, as shown in figure 8, in the present embodiment, UE into
The update of row TDD uplink-downlink configurations mainly includes the following steps that：
Step S701, initialization procedure
This step is identical as step S701 in embodiment three, and which is not described herein again.
Step S702, UE, which receives a TDD and reconfigures all new SIB of the carrying TDD reconfiguration informations in the period, disappears
Breath, and judge whether there is newer TDD reconfiguration messages.
In the present embodiment, TDD reconfiguration informations are by newly-increased SIB message bearings, the then transmission of the newly-increased SIB message
Opportunity is the transmission opportunity of TDD reconfiguration informations.Period and the TDD weights of transmission can be reasonably selected using newly-increased SIB message
The configuration period matches.It is provided in LTE protocol, other SIB message other than MIB and SIB1 will be mapped to system information
（System Information, SI）It is transmitted in message, and mapping relations provide in SIB1 message.It in addition can also be in agreement
The time-frequency domain resources of the newly-increased SIB message of middle regulation carrying TDD reconfiguration informations, are closed from without providing mapping in SIB1
System is to ensure that newly-increased SIB message will not generate conflicting in time domain with original SIB message in this way.
In addition, being provided in existing protocol, when other SIB other than MIB, SIB1, SIB10, SIB11 and SIB12 disappear
When breath changes, the label value systemInfoValueTag in corresponding SIB will accordingly change.But in the present embodiment
In, it is more for change frequency, and change for the newly-increased SIB message of faster carrying TDD reconfiguration informations, variation is simultaneously
It is not embodied in systemInfoValueTag, that is, when increasing SIB message alterations newly, systemInfoValueTag values may be kept
It is constant.When the system message value label of UE storages（SystemInfoValueTag）When with difference in SIB1 message, UE is then
Think in addition to MIB, SIB1, SIB10, SIB11, SIB12 and carry except the SIB message of TDD reconfiguration informations other be
Information of uniting is invalid.
Step S803, UE next TDD reconfigure the period according to judging result use corresponding sub-frame configuration.
This step is identical as step S703 in embodiment three, and which is not described herein again.
Embodiment five
Fig. 9 is the newer flow chart of TDD uplink-downlink configurations in the present embodiment, as shown in figure 9, in the present embodiment, UE into
The update of row TDD uplink-downlink configurations mainly includes the following steps that：
Step S901, UE reports the ability for oneself having and supporting dynamic TDD configurations
In the present embodiment, pass through Non-Access Stratum when UE can access network（Non Access Stratum, NAS）Message
Informing network oneself has the ability for supporting TDD configurations, and/or when receiving the signaling for asking for UE abilities of network side transmission,
The ability for oneself TDD being supported to reconfigure is reported to network side.
Step S902, the lateral UE of network, which sends TDD and reconfigures function opening imformation and open the TDD of UE, reconfigures function.
In the present embodiment, network side determines that the TDD for opening UE reconfigures function according to the ability of oneself, is sent to UE
TDD reconfigures function opening imformation, and the TDD for opening UE reconfigures function.
Since some networks itself may not support TDD to reconfigure function, UE is in order to receive TDD reconfiguration informations
It may continue monitor channel, so as to cause the energy expenditure of UE larger.It therefore, in the present embodiment, can be by network side
Whether TDD is opened to UE reconfigure function and control, if network side does not send the instruction opened to UE, UE does not have to receive
TDD reconfiguration informations.Network side subsequently can also select to close its TDD re-matchings to the UE according to factors such as the capacity of oneself
Function is set, only need to send the instruction closed to UE.The instruction of the unlatching/closing can pass through system information or RRC
Dedicated signaling carries.
Step S903, UE receives TDD reconfiguration informations.
This step has detailed narration in embodiment three and example IV, and step is that UE connects in above-mentioned all embodiments here
The description of TDD reconfiguration informations is received, which is not described herein again.
Step S904, UE uses the sub-frame configuration indicated in TDD reconfiguration informations.
This step is identical as the step S703 steps in embodiment three, repeats no more.
Embodiment six
Figure 10 is the newer flow chart of TDD uplink-downlink configurations in the present embodiment, as shown in Figure 10, in the present embodiment, UE
The update of TDD uplink-downlink configurations is carried out to mainly include the following steps that：
Step S1001, UE reports the ability for having and supporting that TDD is reconfigured.
This step is identical as step S901, repeats no more.
Step S1002, UE receives TDD reconfiguration informations.
This step is identical as step S903, repeats no more.
Step S1003, UE uses the sub-frame configuration indicated in TDD reconfiguration informations.
This step is identical as step S703, repeats no more.
Step S1004, the lateral UE transmissions TDD of network reconfigures function closing information and reconfigures work(for closing the TDD of UE
Energy.
Network side determines that the TDD for closing UE reconfigures function according to the ability of oneself, and sending TDD to UE reconfigures function pass
Information is closed, the TDD for closing UE reconfigures function.
If being persistently to receive TDD to improve the handling capacity UE of network to reconfigure using the advantage that TDD is reconfigured
Information can ensure that UE enters connected state and uses most suitable sub-frame configuration when network-side communication at once, this is for being promoted
Network throughput has larger benefit.Therefore it attempts to receive TDD reconfiguration informations after UE access network, until being connected to network side hair
The instruction for the closing sent, UE are just no longer attempt to receive TDD reconfiguration informations.If follow-up network side is according to the ability needs of oneself
The TDD for opening UE reconfigures function, only need to send open instruction to UE.The instruction of the unlatching/closing can pass through
System information or the carrying of RRC dedicated signalings.
Step S1005, UE does not use the sub-frame configuration in TDD reconfiguration informations, no longer receives TDD reconfiguration informations.
After UE receives the closing instruction of network side transmission, it will not be used in the TDD reconfiguration informations having received
Sub-frame configuration, then TDD uplink/downlink indicated in SIB1 is used to configure, i.e., with the tradition that does not have TDD and reconfigure function
UE is configured using identical TDD.UE also no longer receives TDD reconfiguration informations.
It can be seen from the above description that by said one or multiple embodiments, UE can be re-matched with scheduled TDD
Whether confidence ceases transmission opportunity reception TDD reconfiguration informations, and have update to judge next according to the reconfiguration information received
A TDD reconfigures the configuration up and down used in the period, rather than the boundary change uplink and downlink for being limited to BCCH change cycles is matched
It sets, so as to realize the dynamic configuration of TDD, improves the frequency that TDD uplink-downlink configurations change, and then avoid TDD uplink and downlinks
The problem of configuration mismatches with current uplink and downlink portfolio and leads to traffic delay and/or the wasting of resources, also, due to network side
The uplink-downlink configuration of all subframes in can indicating one in TDD reconfiguration informations wirelessly, so as to use on flexible
Downstream arrangements are not limited solely to 7 kinds of uplink-downlink configurations shown in table 1.
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 with different from shown in sequence execution herein
The step of going out or describing, either 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, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (18)
1. a kind of update method of Time Division Duplex TDD uplink-downlink configuration, which is characterized in that including：
User equipment (UE) sends in each TDD reconfiguration informations and receives TDD reconfiguration informations at opportunity；
If the UE is reconfigured in current TDD and received newer TDD reconfiguration informations in the period, the UE is from next
TDD reconfigures the period and begins to use TDD uplink-downlink configurations indicated by the newer TDD reconfiguration informations；
If the UE is reconfigured in current TDD and is not received by newer TDD reconfiguration informations in the period, the UE is under
One TDD, which is reconfigured, to be continuing with current TDD and reconfigures TDD uplink-downlink configurations used in the period in the period；
Wherein, the method further includes：The UE obtains the instruction ginseng that the TDD reconfigures the period one of in the following manner
Number：The UE obtains the instruction parameter that the TDD reconfigures the period from the TDD reconfiguration informations；The UE is from receiving
Paging message in obtain the instruction parameter that the TDD reconfigures the period；The UE is patrolled from downlink dedicated control channel DL-DCCH
It collects in the signaling of channel and obtains the instruction parameter that the TDD reconfigures the period.
2. according to the method described in claim 1, it is characterized in that, the TDD reconfigures the TDD or more that the period is TDD system
The minimum interval of row configuration variation.
3. according to the method described in claim 1, it is characterized in that, the TDD reconfiguration informations are held by one of following message
It carries：
System information block type 1SIB1 message；
The system information block SIB message defined for the TDD reconfiguration informations.
4. according to the method described in claim 3, it is characterized in that, disappearing when the TDD reconfiguration informations are carried on the SIB1
When breath, the TDD reconfiguration informations send the opportunity that opportunity is SIB1 message transmission.
5. according to the method described in claim 3, it is characterized in that, when the TDD reconfiguration informations are carried on as TDD weights
When the SIB message that configuration information defines, the TDD reconfiguration informations send that the SIB message that opportunity is the definition sends when
Machine.
6. the method according to any one of claims 1 to 5, it is characterized in that, the method further includes：
Whether the UE receives the paging message from network side, wherein change comprising system information in the paging message
Instruction；
Judge whether the other systems message in addition to the TDD reconfiguration informations changes according to the paging message, wherein
The UE is currently at Idle state and/or connected state.
7. the method according to any one of claims 1 to 5, it is characterized in that, the method further includes：When the UE is deposited
When system message value label difference in the system message value label of storage and the SIB1 message received, the UE determinations remove
Its except the SIB message of Master Information Block MIB, SIB1, SIB10, SIB11, SIB12 and the carrying TDD reconfiguration informations
His system information is invalid.
8. the method according to any one of claims 1 to 5, it is characterized in that, the TDD reconfiguration informations include following
One of：TDD uplink-downlink configurations identify；The uplink-downlink configuration of all subframes in one radio frames.
9. according to the method described in claim 8, it is characterized in that, the TDD reconfiguration informations further include following one：
TDD reconfigures the period；
TDD reconfigures period and deviant.
10. the method according to any one of claims 1 to 5, it is characterized in that, in user equipment (UE) in each TDD weights
Configuration information is sent at opportunity before reception TDD reconfiguration informations, and the method further includes：
The UE reports the UE that TDD is supported to reconfigure function when reporting UE abilities to network side.
11. according to the method described in claim 10, it is characterized in that, being sent out in each TDD reconfiguration informations in user equipment (UE)
It send before receiving TDD reconfiguration informations at opportunity, the method further includes：
Laterally information is opened in the UE transmissions to the network, is controlled the UE unlatchings TDD and is reconfigured function.
12. according to the method described in claim 10, it is characterized in that, the method further includes：The lateral UE of the network
It sends and closes information, control the UE closings TDD and reconfigure function.
13. a kind of updating device of Time Division Duplex TDD uplink-downlink configuration is located at user equipment, which is characterized in that including：
Receiving module receives TDD reconfiguration informations for being sent in each TDD reconfiguration informations at opportunity；
Judgment module is for judging that the receiving module reconfigures the TDD reconfiguration informations received in the period in current TDD
No is update；
Execution module receives TDD reconfiguration informations and has update for being reconfigured in current TDD in the receiving module in the period
When, it reconfigures the period from next TDD and begins to use TDD uplink-downlink configurations indicated by the newer TDD reconfiguration informations,
And in the receiving module when current TDD is reconfigured and received TDD reconfiguration informations in the period and do not update, next
TDD, which is reconfigured, to be continuing with current TDD and reconfigures TDD uplink-downlink configurations used in the period in the period；
Wherein, described device further includes：Acquisition module reconfigures the period for obtaining the TDD one of in the following manner
Indicate parameter：The instruction parameter that the TDD reconfigures the period is obtained from the TDD reconfiguration informations；From the paging received
The instruction parameter that the TDD reconfigures the period is obtained in message；From the signaling of downlink dedicated control channel DL-DCCH logic channels
The middle instruction parameter for obtaining the TDD and reconfiguring the period.
14. device according to claim 13, which is characterized in that the TDD is reconfigured on the TDD that the period is TDD system
The minimum interval of downstream arrangements variation.
15. device according to claim 13, which is characterized in that the TDD reconfiguration informations pass through one of following message
Carrying：
System information block type 1SIB1 message；
The SIB message defined for the TDD reconfiguration informations.
16. the device according to any one of claim 13 to 15, which is characterized in that
The receiving module is additionally operable to receive the paging message from network side, wherein believes comprising system in the paging message
The instruction whether changed ceased；
The judgment module is additionally operable to judge that the other systems in addition to the TDD reconfiguration informations disappear according to the paging message
Whether breath changes.
17. the device according to any one of claim 13 to 15, which is characterized in that described device further includes：
Reporting module for when reporting UE abilities to network side, while reporting the UE that TDD is supported to reconfigure function.
18. the device according to any one of claim 13 to 15, which is characterized in that described device further includes：
Control module, the on or off information for being issued according to network side, the TDD for being turned on and off the UE reconfigure function.
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| CN201210205222.8A CN103516498B (en) | 2012-06-20 | 2012-06-20 | The update method and device of TDD uplink-downlink configurations |
| PCT/CN2013/076112 WO2013189226A1 (en) | 2012-06-20 | 2013-05-22 | Tdd uplink and downlink configuration updating method and apparatus |
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| CN114095990A (en) * | 2015-09-24 | 2022-02-25 | 苹果公司 | System information change notification technique for wireless communication networks |
| CN107948950A (en) * | 2017-11-15 | 2018-04-20 | 北京佰才邦技术有限公司 | Notification Method, terminal, access device, computer-readable storage medium and the system of system information change |
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| CN102076031A (en) * | 2011-01-13 | 2011-05-25 | 大唐移动通信设备有限公司 | Method and device for configuring cell information |
| CN102281099A (en) * | 2011-08-08 | 2011-12-14 | 电信科学技术研究院 | Method, system and equipment for transmitting data in time division duplex (TDD) radio frame |
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| US8489950B2 (en) * | 2008-08-06 | 2013-07-16 | Nokia Siemens Networks Oy | Discontinuous reception retransmission timer and method |
| CN102036171B (en) * | 2009-09-30 | 2015-07-22 | 中兴通讯股份有限公司 | Transmission method and system for subframe identification information |
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| CN102076031A (en) * | 2011-01-13 | 2011-05-25 | 大唐移动通信设备有限公司 | Method and device for configuring cell information |
| CN102281099A (en) * | 2011-08-08 | 2011-12-14 | 电信科学技术研究院 | Method, system and equipment for transmitting data in time division duplex (TDD) radio frame |
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