Specific implementation mode
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with specific implementationExample and attached drawing are described in detail.
The embodiment provides a kind of Enhancement Method, device, base station and the terminals of nonrandom access switching, solveThere are errors by the TA measured due to UE in nonrandom access handoff procedure, if not carrying out error transfer factor to the TA of UE, are easy to makeIt is set at RRC connection reconfigurations and completes the problem of message and subsequent upstream data are difficult to reliable reception.
First embodiment
As shown in Figure 1, the embodiment provides a kind of Enhancement Method of nonrandom access switching, it is applied to baseIt stands, which includes：
Step 101：In nonrandom access handoff procedure, if successfully getting the radio resource control RRC of terminal transmissionConnection reconfiguration, which is set, completes message, then according to it is getting, be used for transmission above-mentioned RRC connection reconfigurations and set and complete the transmission letter of messageNumber, time of measuring lead TA adjusted values.
In non-access handoff procedure, UE obtains RRC connection reconfigurations by target BS or source base station and sets completion messageResource (transmission signal) is sent, here, it can be specially physically to be used for transmission RRC connection reconfigurations and set the transmission signal of completion messageThe shared channel PUSCH transmission signal of row.Specifically, above-mentioned steps 101 may particularly include：According to it is getting, be used for transmission instituteIt states RRC connection reconfigurations and sets the Physical Uplink Shared Channel PUSCH transmission signal for completing message, measure the TA adjusted values.
In the embodiment of the present invention, when the TA errors that UE is calculated are little, RRC connection reconfigurations set completion message can be by targetBase station is properly received, and in such cases, target BS can measure TA adjusted values according to Physical Uplink Shared Channel PUSCH, andUE is sent to adjust the error of the TA of UE calculating.
Step 102：The TA adjusted values measured are sent to terminal.
Terminal is adjusted according to the TA that the TA adjusted values received calculate terminal itself, is improved RRC connection reconfigurations and is setThe reception reliability of message is completed, and further increases the reception reliability of subsequent upstream data.
The interaction flow of base station and terminal in the embodiment of the present invention is illustrated with reference to Fig. 2.
As shown in Fig. 2, above-mentioned interaction flow includes：
Step 201：Terminal sets to target BS transmission RRC connection reconfigurations and completes message.
Step 202：Target BS, which successfully obtains RRC connection reconfigurations, to be set and completes message, and is connected according to above-mentioned RRC is used for transmissionConnect the transmission signal for reconfiguring and completing message, time of measuring lead TA adjusted values.
Step 203：Target BS sends RRC connection reconfigurations to terminal and sets the successful confirmation message of completion message acquisition.
Step 204：Target BS sends the TA signalings for carrying TA adjusted values to terminal.
Terminal is adjusted according to the TA that the TA adjusted values got calculate terminal itself, improves subsequent upstream dataReception reliability.
The Enhancement Method of the nonrandom access switching of the embodiment of the present invention, in nonrandom access handoff procedure, if successThe radio resource control RRC connection reconfiguration for getting terminal transmission completes message, then heavy according to the RRC connections are used for transmissionThe transmission signal of message, time of measuring lead TA adjusted values are completed in configuration；The TA adjusted values measured are sent to endEnd so that terminal can be adjusted according to the TA adjusted values, the TA measured terminal so that the error of UE TA is adjusted,It improves RRC connection reconfigurations and sets the reception reliability for completing message, and then the reception for improving the subsequent upstream transmission data of UE is reliableProperty.
Second embodiment
As shown in figure 3, the embodiment provides a kind of Enhancement Method of nonrandom access switching, it is applied to baseIt stands, including：
Step 301：In nonrandom access handoff procedure, if successfully getting the radio resource control RRC of terminal transmissionConnection reconfiguration, which is set, completes message, then according to it is getting, be used for transmission above-mentioned RRC connection reconfigurations and set and complete the physical uplink of messageShared channel PUSCH transmission signal, measures the TA adjusted values.
It in a specific embodiment of the present invention, can be according to the cyclic prefix CP in PUSCH transmission signal, demodulated reference signalDMRS or detection reference signal SRS measures above-mentioned TA adjusted values, illustrates separately below.
(1) above-mentioned TA adjusted values are measured according to the cyclic prefix CP in PUSCH transmission signal.
At this point, above-mentioned steps 301 specifically include：In the PUSCH transmission signal, the cycle of a data symbol is determinedThe prefix CP time starteds；Started according to identified CP time starteds and the CP of data symbol in pre-assigned PUSCH resourcesThe difference of time obtains the TA adjusted values.
Wherein, in the PUSCH transmission signal, the step of determining the cyclic prefix CP time started of a data symbolIt may particularly include：The PUSCH transmission signal is sampled, a data symbol is obtained；In the data symbol that sampling obtainsMiddle selection length one piece of data identical with the CP length；The data symbol that the one piece of data of selection and sampling are obtainedThe data of tail portion are compared, at the beginning of obtaining the CP of the data symbol.
Here, base station is set in transmission RRC connection reconfigurations in the time domain for the PUSCH transmission signal for completing message, is sampled,Specifically, intercepting a data symbol by a sliding window, one section identical with CP length is chosen in the data symbolData, and be compared with the data of the data symbol tail portion, when the data of data symbol tail portion and the data segment of selection are identicalWhen, at the beginning of the CP that the initial position of sliding window is determined as to data symbol；It is at the beginning of according to the CP and pre-The difference of the CP time starteds of data symbol, obtains TA adjusted values in the PUSCH resources first distributed.Wherein, above-mentioned data symbolSpecially orthogonal frequency division multiplex OFDM symbol.
(2) above-mentioned TA adjusted values are measured according to the demodulated reference signal DMRS in PUSCH transmission signal.
At this point, above-mentioned steps 301 specifically include：In the PUSCH transmission signal, determine demodulated reference signal DMRS'sPosition, wherein the DMRS sequences that identified position demodulates in pre-assigned PUSCH resources DMRS sequences it is relatedSpend highest；The position of identified DMRS is compared with the position of DMRS in the pre-assigned PUSCH resources, is obtainedThe TA adjusted values.
In the embodiment of the present invention, base station is found in transmission RRC connection reconfigurations set the PUSCH transmission signal for completing messageThe time location of DMRS horizontally slips then since this time location, until finding a position, on this positionThe location determination is then by the degree of correlation highest of the DMRS sequences that demodulate and DMRS sequences in pre-assigned PUSCH resourcesThe position of identified DMRS is compared by the position of DMRS with the position of DMRS in the pre-assigned PUSCH resources,Obtain the TA adjusted values.
(3) above-mentioned TA adjusted values are measured according to the detection reference signal SRS in PUSCH transmission signal.
At this point, above-mentioned steps 301 specifically include：In the PUSCH transmission signal, determine demodulated reference signal SRS'sPosition, wherein in the degree of correlation of the SRS sequences that identified position demodulates and SRS sequences in pre-assigned PUSCH resourcesHighest；The position of identified SRS is compared with the position of SRS in the pre-assigned PUSCH resources, is obtained describedTA adjusted values.
In the embodiment of the present invention, base station is found in transmission RRC connection reconfigurations set the PUSCH transmission signal for completing messageThe time location of SRS horizontally slips then since this time location, until finding a position, solves on this positionThe location determination is then SRS by the degree of correlation highest of the SRS sequences recalled and the SRS sequences in pre-assigned PUSCH resourcesPosition, the position of identified SRS is compared with the position of SRS in the pre-assigned PUSCH resources, obtains instituteState TA adjusted values.
Step 302：The TA adjusted values measured are sent to above-mentioned terminal.
Terminal is adjusted according to the TA that the TA adjusted values got calculate terminal itself, is improved RRC connection reconfigurations and is setThe reception reliability of message is completed, and further increases the reception reliability of subsequent upstream data.
The Enhancement Method of the nonrandom access switching of the embodiment of the present invention, in nonrandom access handoff procedure, if successThe radio resource control RRC connection reconfiguration for getting terminal transmission completes message, then heavy according to above-mentioned RRC connections are used for transmissionThe Physical Uplink Shared Channel PUSCH transmission signal of message is completed in configuration, measures the TA adjusted values；The TA that will be measuredAdjusted value is sent to above-mentioned terminal so that terminal can be adjusted according to the TA adjusted values, the TA measured terminal so that UEThe error of TA is adjusted, and is improved RRC connection reconfigurations and is set the reception reliability for completing message, and then the subsequent upstream for improving UE passesThe reception reliability of transmission of data.
3rd embodiment
The embodiment of the present invention additionally provides a kind of Enhancement Method of nonrandom access switching, is applied to base station, the enhancing sideMethod includes：
In nonrandom access handoff procedure, if obtaining the radio resource control RRC connection reconfiguration that terminal is sent not successfullySet and complete message, and the RRC connection reconfigurations set the not up to default maximum retransmission of the number of transmissions for completing message, then toIt is extended processing, and usage time window in the time window for obtaining the acquisition resource that the RRC connection reconfigurations set completion messageThe RRC connection reconfigurations that terminal retransmits described in acquisition resource acquisition after mouth extension process, which are set, completes message, or
Processing is extended to the cyclic prefix CP length for obtaining resource, and uses obtaining after CP length extension processResource is taken, the terminal is obtained and is set using the extension CP RRC connection reconfigurations sent and complete message.
Wherein, above-mentioned acquisition resource can be specially the preconfigured resource in base station.
In embodiments of the present invention, the re-transmission time for completing message can be set with RRC connection reconfigurations according to default extension step valueSeveral correspondences is extended processing, wherein the extension step value is secondary with retransmitting to the time window for obtaining resourceSeveral increase and increase.Such as, RRC connection reconfigurations, which are set, completes when message is transmitted for the first time when obtaining unsuccessful, and base station is by time windowMouth expands 2 OFDM symbols, and when second of transmission is still unsuccessful, time window is expanded 4 OFDM symbols.
In embodiments of the present invention, it can be set with RRC connection reconfigurations according to the CP extension lengths value made an appointment and complete messageNumber of retransmissions correspondence, to it is described obtain resource CP length be extended processing, wherein the CP extension lengths valueIncrease with the increase of number of retransmissions.Wherein, above-mentioned correspondence can be made an appointment by base station and terminal both sides, also can be by baseStation is pre-configured with above-mentioned correspondence.
It is specifically described below in the embodiment of the present invention, RRC connection reconfigurations set completion message and success, and the RRC has not been obtainedWhen the number of transmissions that connection reconfiguration sets completion message not up to presets maximum retransmission, the interaction flow of base station and terminal.
As shown in figure 4, the interaction flow of base station and terminal includes in the embodiment of the present invention：
Step 401：Terminal sets to target BS transmission RRC connection reconfigurations and completes message.
Step 402：Target BS obtains above-mentioned RRC connection reconfigurations not successfully to be set and completes message, and sending one to terminal is used forIt indicates that RRC connection reconfigurations are set and completes the feedback message that message obtains failure.
Step 403：Target BS using enhancing method, improve next time RRC connection reconfigurations set completion message reception atPower.
Here the method enhanced may particularly include following two.
1. target BS, which expands, receives window.
The length of one radio frames is 10ms comprising 10 subframes, each subframe include two time slots, each radio framesEqual to 140 symbols (routine), in the embodiment of the present invention, target BS, which expands, receives the PUSCH that RRC connection reconfigurations set completion messageThe time window of signal, specifically, can forwardly and rearwardly expand the time span of a symbol simultaneously, it also can only forward or backwardExpand corresponding time span.In this widened time window, using method flow shown in Fig. 2, attempt to receive RRC companiesIt connects to reconfigure and completes message, and measure TA adjusted values.
In order to not introduce interference in widened time window, base station needed to make in the cell of base station within the widened timeDo not send signal.
Base station can take a certain step-length of setting, gradually expand the method for receiving window.Such as the RRC connection reconfigurations in UESet and complete to receive when message is transmitted for the first time unsuccessful, base station, which expands, receives 2 symbols of window, second transmission still not atWhen work(, expands and receive 4 symbols of window.
2. target BS is set using the extension CP RRC connection reconfigurations sent using the CP reception terminals of extension and completes message.
UE is when transmission RRC connection reconfigurations set completion message, using the CP longer than conventional CP.Base station uses corresponding CPLength, using method flow shown in Fig. 2, trial reception RRC connection reconfigurations, which are set, completes message, and measures TA adjusted values.
Step 404：RRC connection reconfigurations set the not up to default maximum retransmission of the number of transmissions for completing message, terminal weightNew transmission RRC connection reconfigurations, which are set, completes message.
Step 405：Target BS, which successfully obtains RRC connection reconfigurations, to be set and completes message, according to being used for transmission above-mentioned RRC connectionsReconfigure the transmission resource for completing message, time of measuring lead TA adjusted values.
Here transmission resource can be specially that PUSCH sends resource.
Step 406：Target BS sends RRC connection reconfigurations to terminal and sets the successful confirmation message of completion message acquisition.
Step 407：Target BS sends the TA signalings for carrying TA adjusted values to terminal.
When UE calculate TA errors be so large that RRC connection reconfigurations set complete message first time transmission cannot be by targetBase station successfully obtains.In such cases, the method that target BS can use enhancing has been set with improving RRC connection reconfigurations next timeThe probability successfully obtained at message.After RRC connection reconfigurations, which set completion message, successfully to be obtained, target BS adjusts the TA of measurementValue is sent to UE to adjust the error of the TA of UE calculating.
The Enhancement Method of the nonrandom access switching of the embodiment of the present invention, makes Target cell have the case where error in UE TAUnder, the error of UE TA can be adjusted, improve RRC connection reconfigurations and set the reception reliability for completing message, further increase UEThe reception reliability of subsequent upstream transmission data.
Fourth embodiment
As shown in figure 5, the embodiments of the present invention also provide a kind of intensifier 500 of nonrandom access switching, applicationIn base station, including：
Measurement module 501 is used in nonrandom access handoff procedure, if successfully getting the radio resource of terminal transmissionControl RRC connection reconfigurations set and complete message, then according to it is getting, be used for transmission the RRC connection reconfigurations and set and complete messageTransmit signal, time of measuring lead TA adjusted values；
First sending module 502, for the TA adjusted values measured to be sent to terminal.
The intensifier of the nonrandom access switching of the embodiment of the present invention, the measurement module 501 are used for basis and get, be used for transmission the RRC connection reconfigurations and set the Physical Uplink Shared Channel PUSCH transmission signal for completing message, described in measurementTA adjusted values.
The intensifier of the nonrandom access switching of the embodiment of the present invention, the measurement module 501 include：
First determination sub-module 5011 is used in the PUSCH transmission signal, before the cycle for determining a data symbolSew the CP time starteds；
Second determination sub-module 5012, for according in identified CP time starteds and pre-assigned PUSCH resourcesThe difference of the CP time starteds of data symbol obtains the TA adjusted values.
The intensifier of the nonrandom access switching of the embodiment of the present invention, first determination sub-module 5011 include：
Sampling unit 50111 obtains a data symbol for being sampled to the PUSCH transmission signal；
Selection unit 50112, for choosing length and the CP length identical one in the data symbol that sampling obtainsSegment data；
Determination unit 50113, the data of the data symbol tail portion for obtaining the one piece of data of selection and samplingIt is compared, at the beginning of obtaining the CP of the data symbol.
The intensifier of the nonrandom access switching of the embodiment of the present invention, the measurement module 501 include：
Third determination sub-module 5013, in the PUSCH transmission signal, determining the position of demodulated reference signal DMRSIt sets, wherein in the degree of correlation of the DMRS sequences that identified position demodulates and DMRS sequences in pre-assigned PUSCH resourcesHighest；
4th determination sub-module 5014 is used for the position of identified DMRS and the pre-assigned PUSCH resourcesThe position of middle DMRS is compared, and obtains the TA adjusted values.
The intensifier of the nonrandom access switching of the embodiment of the present invention, the measurement module 501 include：
5th determination sub-module 5015, in the PUSCH transmission signal, determining the position of demodulated reference signal SRSSet, wherein SRS sequences that identified position demodulates and SRS sequences in pre-assigned PUSCH resources the degree of correlation mostIt is high；
6th determination sub-module 5016, for will be in the position of identified SRS and the pre-assigned PUSCH resourcesThe position of SRS is compared, and obtains the TA adjusted values.
The embodiment of the present invention nonrandom access switching intensifier, further include：
First expansion module 503 is used in nonrandom access handoff procedure, if obtaining the wireless of terminal transmission not successfullyResources control RRC connection reconfigurations, which are set, completes message, and the RRC connection reconfigurations set complete message the number of transmissions it is not up to defaultMaximum retransmission then expands the time window that the acquisition resource for completing message is set for obtaining the RRC connection reconfigurationsExhibition is handled, and treated obtains resource for usage time Window Scale, obtains the RRC connections that the terminal retransmits and weighsMessage is completed in configuration.
The intensifier of the nonrandom access switching of the embodiment of the present invention, first expansion module 503 are used for according to pre-If extension step value sets the correspondence for the number of retransmissions for completing message with RRC connection reconfigurations, to the time for obtaining resourceWindow is extended processing, wherein the extension step value increases with the increase of number of retransmissions.
The embodiment of the present invention nonrandom access switching intensifier, further include：
Second expansion module 504 is used in nonrandom access handoff procedure, if obtaining the wireless of terminal transmission not successfullyResources control RRC connection reconfigurations, which are set, completes message, and the RRC connection reconfigurations set complete message the number of transmissions it is not up to defaultMaximum retransmission, then to for obtain the RRC connection reconfigurations set complete message acquisition resource cyclic prefix CP lengthIt is extended processing, and using the acquisition resource after CP length extension process, obtains the RRC that the terminal is sent using extension CPConnection reconfiguration, which is set, completes message.
The intensifier of the nonrandom access switching of the embodiment of the present invention, second expansion module 504 are used for according to pre-The CP extension lengths value first arranged sets the correspondence for the number of retransmissions for completing message with RRC connection reconfigurations, is provided to the acquisitionThe CP length in source is extended processing, wherein the CP extension lengths value increases with the increase of number of retransmissions.
The intensifier of the nonrandom access switching of the embodiment of the present invention, in nonrandom access handoff procedure, if successThe radio resource control RRC connection reconfiguration for getting terminal transmission completes message, then according to it is getting, be used for transmission it is describedRRC connection reconfigurations set the transmission signal for completing message, time of measuring lead TA adjusted values；The TA adjusted values that will be measuredIt is sent to terminal so that terminal can be adjusted according to the TA adjusted values, the TA measured terminal so that the error of UE TAIt is adjusted, improves RRC connection reconfigurations and set the reception reliability for completing message, and then improve the subsequent upstream transmission data of UEReception reliability.
It should be noted that the intensifier of the nonrandom access switching is the enhancing side with above-mentioned nonrandom access switchingThe corresponding device of method, all realization methods also can suitable for the embodiment of the device wherein in above method embodimentReach same technique effect.
5th embodiment
As shown in fig. 6, the embodiments of the present invention also provide a kind of base stations, including：
First processor 601 is used in nonrandom access handoff procedure, if successfully getting the wireless money of terminal transmissionSource control RRC connection reconfigurations set and complete message, then according to it is getting, be used for transmission the RRC connection reconfigurations and set and complete messageTransmission signal, time of measuring lead TA adjusted values；
First transmitter 602, for the TA adjusted values measured to be sent to terminal.
The first processor 601 can also be configured and realize the intensifier embodiment of above-mentioned nonrandom access switchingIn the function realized of all modules, can also reach and the attainable phase of intensifier embodiment institute of above-mentioned nonrandom access switchingSame technique effect.
Sixth embodiment
As shown in fig. 7, the embodiments of the present invention also provide a kind of Enhancement Method of nonrandom access switching, it is applied to eventuallyEnd, including：
Step 701：In nonrandom access handoff procedure, it is complete to send radio resource control RRC connection reconfiguration to base stationAt message.
Step 702：Base station is obtained after successfully obtaining the RRC connection reconfigurations and setting completion message, the TA adjusted values of transmission,The TA adjusted values be the base station according to be used for transmission the RRC connection reconfigurations set completion message transmission signal measurement obtain's.
Here TA adjusted values are that base station successfully obtains after RRC connection reconfigurations set and complete message, according to being used for transmissionRRC connection reconfigurations, which are set, to be completed the PUSCH transmission signal measurement of message and obtains.
Further, in the embodiment of the present invention, the acquisition base station disappears successfully obtaining the RRC connection reconfigurations and set completionAfter breath, the step of the TA adjusted values of transmission after, the Enhancement Method further includes：
According to the TA adjusted values, the TA measured terminal is adjusted, and according to the TA transmission datas after adjustment.
The Enhancement Method of the nonrandom access switching of the embodiment of the present invention, in nonrandom access handoff procedure, to base stationIt sends radio resource control RRC connection reconfiguration and completes message；It obtains base station and sets completion successfully obtaining the RRC connection reconfigurationsAfter message, TA adjusted values of transmission, and according to the TA adjusted values, the TA measured terminal is adjusted, and according to adjustment afterTA transmission datas ensure that the reliable reception of subsequent upstream transmission data.
7th embodiment
As shown in figure 8, the Enhancement Method of the nonrandom access switching of the embodiment of the present invention, is applied to terminal, the enhancing sideMethod includes：
Step 801：In nonrandom access handoff procedure, it is complete to send radio resource control RRC connection reconfiguration to base stationAt message.
Step 802：If the RRC connection reconfigurations that are used to indicate for getting base station return set completion message acquisition failureFeedback message, and the RRC connection reconfigurations set the not up to default maximum retransmission of the number of transmissions for completing message, then using expansionThe exhibition cyclic prefix CP retransmission RRC connection reconfigurations, which are set, completes message.
Specifically, the number of retransmissions for completing message is set with RRC connection reconfigurations according to the CP extension lengths value made an appointmentCorrespondence, the CP length that the transmission signal for completing message is set to being used for transmission the RRC connection reconfigurations are extended processing；It adoptsIt is set with the transmission signal retransmission RRC connection reconfigurations after CP length extension process and completes message.
Further, described in nonrandom access handoff procedure in the embodiment of the present invention, send radio resource to base stationAfter control RRC connection reconfigurations set the step of completing message, the Enhancement Method further includes：
If get base station return be used to indicate the RRC connection reconfigurations set complete message obtain failure feedback disappearBreath, and the RRC connection reconfigurations set complete message the number of transmissions reach default maximum retransmission, then to the base station sendPhysical Random Access Channel heading.
With reference to Fig. 9, illustrates RRC connection reconfigurations in the embodiment of the present invention and set completion message acquisition failure, and RRCWhen the number of transmissions that connection reconfiguration sets completion message reaches default maximum retransmission, the interaction flow of terminal and base station.
As shown in figure 9, the interaction flow includes：
Step 901：Terminal sets to target BS transmission RRC connection reconfigurations and completes message.
Step 902：Target BS obtains above-mentioned RRC connection reconfigurations not successfully to be set and completes message, and sending one to terminal is used forIt indicates that RRC connection reconfigurations are set and completes the feedback message that message obtains failure.
Step 903：Target BS adjusts PUSCH and obtains window.
Step 904：RRC connection reconfigurations set the not up to default maximum retransmission of the number of transmissions for completing message, terminal weightNew transmission RRC connection reconfigurations, which are set, completes message.
Step 905：Target BS still obtains above-mentioned RRC connection reconfigurations not successfully to be set and completes message, and sending one to terminal usesThe feedback message completed message and obtain failure is set in instruction RRC connection reconfigurations.
Step 906：The number of transmissions that RRC connection reconfigurations set completion message reaches default maximum retransmission, sends physicsRandom access channel message head PRACH preamble are to base station.
When UE calculate TA errors are very big or mistake so that RRC connection reconfigurations, which are transmitted several times, sets that complete message equalIt cannot correctly be obtained by target BS.In such cases, UE sends PRACH preamble, carries out random access.
8th embodiment
As shown in Figure 10, the embodiment provides a kind of intensifier 1000 of nonrandom access switching, applicationsIn terminal, including：
Second sending module 1001, in nonrandom access handoff procedure, radio resource control RRC to be sent to base stationConnection reconfiguration, which is set, completes message；
Acquisition module 1002, for obtaining base station after successfully obtaining the RRC connection reconfigurations and setting completion message, transmissionTA adjusted values, the TA adjusted values be the base station according to be used for transmission the RRC connection reconfigurations set complete message transmission letterIt number measures and to obtain.
The embodiment of the present invention nonrandom access switching intensifier, further include：
Adjust module 1003, for according to the TA adjusted values, the TA measured terminal to be adjusted, and according to adjustment afterTA transmission datas.
The embodiment of the present invention nonrandom access switching intensifier, further include：
Module 1004 is retransmitted, if the RRC connection reconfigurations that are used to indicate for getting base station return set completionMessage obtains the feedback message of failure, and the RRC connection reconfigurations set the not up to default maximum weight of the number of transmissions for completing messageNumber is passed, then uses the extended cyclic prefix CP retransmissions RRC connection reconfigurations to set and completes message.
The intensifier of the nonrandom access switching of the embodiment of the present invention, the retransmission module 1004 include：
Submodule 10041 is extended, message is completed for being set with RRC connection reconfigurations according to the CP extension lengths value made an appointmentNumber of retransmissions correspondence, to be used for transmission the RRC connection reconfigurations set complete message transmission signal CP length intoRow extension process；
Sending submodule 10042, for retransmitting the RRC connections using the transmission signal after CP length extension processIt reconfigures and completes message.
The embodiment of the present invention nonrandom access switching intensifier, further include：
Third sending module 1005, if the RRC connection reconfigurations that are used to indicate for getting base station return set completionMessage obtains the feedback message of failure, and the RRC connection reconfigurations set and complete the number of transmissions of message and reach default maximum and retransmitNumber then sends Physical Random Access Channel heading to the base station.
The intensifier of the nonrandom access switching of the embodiment of the present invention, in nonrandom access handoff procedure, to base stationIt sends radio resource control RRC connection reconfiguration and completes message；It obtains base station and sets completion successfully obtaining the RRC connection reconfigurationsAfter message, TA adjusted values of transmission, and according to the TA adjusted values, the TA measured terminal is adjusted, and according to adjustment afterTA transmission datas ensure that the reliable reception of subsequent upstream transmission data.
9th embodiment
As shown in figure 11, the embodiments of the present invention also provide a kind of terminals, including：
Second transmitter 1101, in nonrandom access handoff procedure, sending radio resource control RRC to base station and connectingIt connects to reconfigure and completes message；
Receiver 1102, for obtaining base station after successfully obtaining the RRC connection reconfigurations and setting completion message, the TA of transmissionAdjusted value, the TA adjusted values be the base station according to be used for transmission the RRC connection reconfigurations set completion message transmission signalWhat measurement obtained.
The terminal of the embodiment of the present invention may also include a processor, which can be configured and realize above-mentioned nonrandomThe function that all modules are realized in the intensifier embodiment of switching is accessed, the increasing with above-mentioned nonrandom access switching can be also reachedThe attainable identical technique effect of intensity device embodiment institute.
Terminal described in the embodiment of the present invention, can be mobile phone (or mobile phone) or it is other can send orThe equipment for receiving wireless signal, including user equipment (terminal), personal digital assistant (PDA), wireless modem, channel radioT unit, hand-held device, laptop computer, wireless phone, wireless local loop (WLL) stand, can convert movable signalIt spontaneous can be communicated with mobile communications network for the CPE or Mifi of wifi signals, intelligent appliance or other obstructed remarkable operationsEquipment etc..
In addition it should be pointed out that in apparatus and method of the present invention, it is clear that each component or each step are can to divideIt solves and/or reconfigures.These decompose and/or reconfigure the equivalent scheme that should be regarded as the present invention.Also, execute above-mentioned systemThe step of column processing, can execute according to the sequence of explanation in chronological order naturally, but not need to be centainly suitable according to the timeSequence executes, and certain steps can execute parallel or independently of one another.For those of ordinary skill in the art, it is to be understood that thisThe whole either any steps or component of the method and apparatus of invention, can any computing device (including processor, storageMedium etc.) either to be realized with hardware, firmware, software or combination thereof in the network of computing device, this is this fieldWhat those of ordinary skill can be achieved in the case where having read the explanation of the present invention with their basic programming skill.
Therefore, the purpose of the present invention can also by run on any computing device a program or batch processing comeIt realizes.The computing device can be well known fexible unit.Therefore, the purpose of the present invention can also include only by offerThe program product of the program code of the method or device is realized to realize.That is, such program product is also constitutedThe present invention, and the storage medium for being stored with such program product also constitutes the present invention.Obviously, the storage medium can beAny well known storage medium or any storage medium that developed in the future.It may also be noted that the present invention'sIn device and method, it is clear that each component or each step can be decomposed and/or be reconfigured.These decomposition and/or again groupClose the equivalent scheme that should be regarded as the present invention.Also, the step of executing above-mentioned series of processes can be naturally according to the sequence of explanationIt executes in chronological order, but does not need to centainly execute sequentially in time.Certain steps can parallel or independently of one anotherIt executes.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the artFor, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modificationsIt should be regarded as protection scope of the present invention.
A1. a kind of Enhancement Method of nonrandom access switching, is applied to base station, which is characterized in that including：
In nonrandom access handoff procedure, if successfully getting the radio resource control RRC connection reconfiguration of terminal transmissionSet and complete message, then according to it is getting, be used for transmission the RRC connection reconfigurations and set and complete the transmission signal of message, when measurementBetween lead TA adjusted values；
The TA adjusted values measured are sent to the terminal.
A2. according to A1 nonrandom access switching Enhancement Method, which is characterized in that according to it is getting, be used forIt transmits the RRC connection reconfigurations and sets the transmission signal for completing message, the step of time of measuring lead TA adjusted values includes：
According to it is getting, be used for transmission the RRC connection reconfigurations set complete message Physical Uplink Shared Channel PUSCHSignal is transmitted, the TA adjusted values are measured.
A3. according to A2 nonrandom access switching Enhancement Method, which is characterized in that according to it is getting, be used forIt transmits the RRC connection reconfigurations and sets the Physical Uplink Shared Channel PUSCH transmission signal for completing message, measure the TA adjusted valuesThe step of include：
In the PUSCH transmission signal, the cyclic prefix CP time started of a data symbol is determined；
According to the difference of the CP time starteds of data symbol in identified CP time starteds and pre-assigned PUSCH resourcesValue, obtains the TA adjusted values.
A4. the Enhancement Method of the nonrandom access switching according to A3, which is characterized in that described to be passed in the PUSCHIn defeated signal, the step of cyclic prefix CP time started for determining a data symbol, includes：
The PUSCH transmission signal is sampled, a data symbol is obtained；
Length one piece of data identical with the CP length is chosen in the data symbol that sampling obtains；
The data for the data symbol tail portion that the one piece of data of selection and sampling obtain are compared, the number is obtainedAt the beginning of CP according to symbol.
A5. according to A2 nonrandom access switching Enhancement Method, which is characterized in that according to it is getting, be used forIt transmits the RRC connection reconfigurations and sets the Physical Uplink Shared Channel PUSCH transmission signal for completing message, measure the TA adjusted valuesThe step of include：
In the PUSCH transmission signal, the position of demodulated reference signal DMRS is determined, wherein in identified positionThe degree of correlation highest of the DMRS sequences demodulated and DMRS sequences in pre-assigned PUSCH resources；
The position of identified DMRS is compared with the position of DMRS in the pre-assigned PUSCH resources, is obtainedTo the TA adjusted values.
A6. according to A2 nonrandom access switching Enhancement Method, which is characterized in that according to it is getting, be used forIt transmits the RRC connection reconfigurations and sets the Physical Uplink Shared Channel PUSCH transmission signal for completing message, measure the TA adjusted valuesThe step of include：
In the PUSCH transmission signal, the position of demodulated reference signal SRS is determined, wherein solved in identified positionThe degree of correlation highest of the SRS sequences recalled and SRS sequences in pre-assigned PUSCH resources；
The position of identified SRS is compared with the position of SRS in the pre-assigned PUSCH resources, is obtainedThe TA adjusted values.
A7. the Enhancement Method of the nonrandom access switching according to A1, which is characterized in that the Enhancement Method is also wrappedIt includes：
In nonrandom access handoff procedure, if obtaining the radio resource control RRC connection reconfiguration that terminal is sent not successfullySet and complete message, and the RRC connection reconfigurations set the not up to default maximum retransmission of the number of transmissions for completing message, then toIt is extended processing, and usage time window in the time window for obtaining the acquisition resource that the RRC connection reconfigurations set completion messageAcquisition resource after mouthful extension process obtains the RRC connection reconfigurations that the terminal retransmits and sets and completes message.
A8. the Enhancement Method of the nonrandom access switching according to A7, which is characterized in that being used to obtain the RRCConnection reconfiguration set complete include the step of the time window of acquisition resource of message is extended processing：
The correspondence for setting the number of retransmissions for completing message with RRC connection reconfigurations according to default extension step value, to describedThe time window for obtaining resource is extended processing, wherein the extension step value increases with the increase of number of retransmissions.
A9. the Enhancement Method of the nonrandom access switching according to A1, which is characterized in that the Enhancement Method is also wrappedIt includes：
In nonrandom access handoff procedure, if obtaining the radio resource control RRC connection reconfiguration that terminal is sent not successfullySet and complete message, and the RRC connection reconfigurations set the not up to default maximum retransmission of the number of transmissions for completing message, then toIt is extended processing in the cyclic prefix CP length for obtaining the acquisition resource that the RRC connection reconfigurations set completion message, and is usedAcquisition resource after CP length extension process is obtained the terminal and is set using the extension CP RRC connection reconfigurations sent and completes message.
A10. the Enhancement Method of the nonrandom access switching according to A9, which is characterized in that the acquisition resourceThe step of cyclic prefix CP length is extended processing include：
The corresponding pass for the number of retransmissions for completing message is set with RRC connection reconfigurations according to the CP extension lengths value made an appointmentSystem, to it is described obtain resource CP length be extended processing, wherein the CP extension lengths value with the increase of number of retransmissions andIncrease.
B11. a kind of intensifier of nonrandom access switching, is applied to base station, which is characterized in that including：
Measurement module is used in nonrandom access handoff procedure, if successfully getting the radio resource control of terminal transmissionRRC connection reconfigurations processed, which are set, completes message, then according to it is getting, be used for transmission the RRC connection reconfigurations and set and complete the biography of messageDefeated signal, time of measuring lead TA adjusted values；
First sending module, for the TA adjusted values measured to be sent to terminal.
B12. the intensifier of the nonrandom access switching according to B11, which is characterized in that the measurement module is used forAccording to it is getting, be used for transmission the RRC connection reconfigurations set complete message Physical Uplink Shared Channel PUSCH transmission letterNumber, measure the TA adjusted values.
B13. the intensifier of the nonrandom access switching according to B12, which is characterized in that the measurement module packetIt includes：
First determination sub-module, in the PUSCH transmission signal, determining the cyclic prefix CP of a data symbolTime started；
Second determination sub-module, for according to data in identified CP time starteds and pre-assigned PUSCH resourcesThe difference of the CP time starteds of symbol obtains the TA adjusted values.
B14. the intensifier of the nonrandom access switching according to B13, which is characterized in that described first determines submoduleBlock includes：
Sampling unit obtains a data symbol for being sampled to the PUSCH transmission signal；
Selection unit, for choosing a length hop count identical with the CP length in the data symbol that sampling obtainsAccording to；
The data of determination unit, the data symbol tail portion for obtaining the one piece of data of selection with sampling compareCompared at the beginning of obtaining the CP of the data symbol.
B15. the intensifier of the nonrandom access switching according to B12, which is characterized in that the measurement module packetIt includes：
Third determination sub-module, in the PUSCH transmission signal, determining the position of demodulated reference signal DMRS,Wherein, DMRS sequences that identified position demodulates and DMRS sequences in pre-assigned PUSCH resources the degree of correlation mostIt is high；
4th determination sub-module, for will be in the position of identified DMRS and the pre-assigned PUSCH resourcesThe position of DMRS is compared, and obtains the TA adjusted values.
B16. the intensifier of the nonrandom access switching according to B12, which is characterized in that the measurement module packetIt includes：
5th determination sub-module, in the PUSCH transmission signal, determining the position of demodulated reference signal SRS,In, in the degree of correlation highest of the SRS sequences that identified position demodulates and SRS sequences in pre-assigned PUSCH resources；
6th determination sub-module is used for SRS in the position of identified SRS and the pre-assigned PUSCH resourcesPosition be compared, obtain the TA adjusted values.
B17. the intensifier of the nonrandom access switching according to B11, which is characterized in that further include：
First expansion module is used in nonrandom access handoff procedure, if obtaining the wireless money that terminal is sent not successfullySource control RRC connection reconfigurations set and complete message, and the RRC connection reconfigurations set complete the number of transmissions of message not up to it is default mostBig number of retransmissions is then extended the time window that the acquisition resource for completing message is set for obtaining the RRC connection reconfigurationsProcessing, and treated obtains resource for usage time Window Scale, obtains the RRC connection reconfigurations that the terminal retransmitsIt sets and completes message.
B18. the intensifier of the nonrandom access switching according to B17, which is characterized in that first expansion moduleCorrespondence for setting the number of retransmissions for completing message with RRC connection reconfigurations according to default extension step value, to the acquisitionThe time window of resource is extended processing, wherein the extension step value increases with the increase of number of retransmissions.
B19. the intensifier of the nonrandom access switching according to B11, which is characterized in that further include：
Second expansion module is used in nonrandom access handoff procedure, if obtaining the wireless money that terminal is sent not successfullySource control RRC connection reconfigurations set and complete message, and the RRC connection reconfigurations set complete the number of transmissions of message not up to it is default mostBig number of retransmissions, then to for obtain the RRC connection reconfigurations set complete message acquisition resource cyclic prefix CP length intoRow extension process, and using the acquisition resource after CP length extension process, obtain the terminal and connected using the extension CP RRC sentIt connects to reconfigure and completes message.
B20. the intensifier of the nonrandom access switching according to B19, which is characterized in that second expansion moduleCorrespondence for setting the number of retransmissions for completing message with RRC connection reconfigurations according to the CP extension lengths value made an appointment, it is rightThe CP length for obtaining resource is extended processing, wherein the CP extension lengths value increases with the increase of number of retransmissions.
C21. a kind of base station, which is characterized in that including：
First processor is used in nonrandom access handoff procedure, if successfully getting the radio resource of terminal transmissionControl RRC connection reconfigurations set and complete message, then according to it is getting, be used for transmission the RRC connection reconfigurations and set and complete messageTransmit signal, time of measuring lead TA adjusted values；
First transmitter, for the TA adjusted values measured to be sent to the terminal.
D22. a kind of Enhancement Method of nonrandom access switching, is applied to terminal, which is characterized in that including：
In nonrandom access handoff procedure, sends radio resource control RRC connection reconfiguration to base station and complete message；
Base station is obtained after successfully obtaining the RRC connection reconfigurations and setting completion message, the TA adjusted values of transmission, the TA tuneWhole value is the base station to be obtained according to the transmission signal measurement for being used for transmission the RRC connection reconfigurations and setting completion message.
D23. according to D22 nonrandom access switching Enhancement Method, which is characterized in that the acquisition base station atAfter the step of work(obtains after the RRC connection reconfigurations set and complete message, the TA adjusted values of transmission, the Enhancement Method is also wrappedIt includes：
According to the TA adjusted values, the TA measured terminal is adjusted, and according to the TA transmission datas after adjustment.
D24. the Enhancement Method of the nonrandom access switching according to D22, which is characterized in that described in nonrandom accessIn handoff procedure, after sending the step of radio resource control RRC connection reconfiguration completes message to base station, the Enhancement MethodFurther include：
If get base station return be used to indicate the RRC connection reconfigurations set complete message obtain failure feedback disappearBreath, and the RRC connection reconfigurations set the not up to default maximum retransmission of the number of transmissions for completing message, then use Extended CyclicThe prefix CP retransmissions RRC connection reconfigurations, which are set, completes message.
D25. the Enhancement Method of the nonrandom access switching according to D24, which is characterized in that use extended cyclic prefixThe CP retransmissions RRC connection reconfigurations set completion message：
The corresponding pass for the number of retransmissions for completing message is set with RRC connection reconfigurations according to the CP extension lengths value made an appointmentSystem, the CP length that the transmission signal for completing message is set to being used for transmission the RRC connection reconfigurations are extended processing；
It is set using the transmission signal retransmission RRC connection reconfigurations after CP length extension process and completes message.
D26. the Enhancement Method of the nonrandom access switching according to D22, which is characterized in that described in nonrandom accessIn handoff procedure, after sending the step of radio resource control RRC connection reconfiguration completes message to base station, the Enhancement MethodFurther include：
If get base station return be used to indicate the RRC connection reconfigurations set complete message obtain failure feedback disappearBreath, and the RRC connection reconfigurations set complete message the number of transmissions reach default maximum retransmission, then to the base station sendPhysical Random Access Channel heading.
E27. a kind of intensifier of nonrandom access switching, is applied to terminal, which is characterized in that including：
Second sending module, in nonrandom access handoff procedure, radio resource control RRC connection to be sent to base stationIt reconfigures and completes message；
Acquisition module, for obtaining base station after successfully obtaining the RRC connection reconfigurations and setting completion message, the TA tune of transmissionWhole value, the TA adjusted values be the base station according to be used for transmission the RRC connection reconfigurations set complete message transmission signal surveyIt measures.
E28. the intensifier of the nonrandom access switching according to E27, which is characterized in that further include：
Module is adjusted, for according to the TA adjusted values, the TA measured terminal to be adjusted, and according to the TA after adjustmentTransmission data.
E29. the intensifier of the nonrandom access switching according to E27, which is characterized in that further include：
Module is retransmitted, if the RRC connection reconfigurations that are used to indicate for getting base station return set and complete messageThe feedback message to fail is obtained, and the RRC connection reconfigurations set the not up to default maximum re-transmission time of the number of transmissions for completing messageNumber then uses the extended cyclic prefix CP retransmissions RRC connection reconfigurations to set and completes message.
E30. the intensifier of the nonrandom access switching according to E29, which is characterized in that the retransmission moduleIncluding：
Submodule is extended, for setting the weight for completing message with RRC connection reconfigurations according to the CP extension lengths value made an appointmentThe correspondence for passing number, the CP length that the transmission signal for completing message is set to being used for transmission the RRC connection reconfigurations expandExhibition is handled；
Sending submodule, for retransmitting the RRC connection reconfigurations using the transmission signal after CP length extension processIt sets and completes message.
E31. the intensifier of the nonrandom access switching according to E27, which is characterized in that further include：
Third sending module, if the RRC connection reconfigurations that are used to indicate for getting base station return set and complete messageObtain failure feedback message, and the RRC connection reconfigurations set complete message the number of transmissions reach default maximum retransmission,Then Physical Random Access Channel heading is sent to the base station.
F32. a kind of terminal, which is characterized in that including：
Second transmitter, in nonrandom access handoff procedure, radio resource control RRC connection weight to be sent to base stationMessage is completed in configuration；
Receiver, for obtaining base station after being properly received the RRC connection reconfigurations and setting completion message, the TA of transmission is adjustedValue, the TA adjusted values be the base station according to be used for transmission the RRC connection reconfigurations set completion message transmission signal measurementIt obtains.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the artFor, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modificationsIt should be regarded as protection scope of the present invention.