CN102595590A - Uplink synchronization method and device for multicarrier system - Google Patents

Uplink synchronization method and device for multicarrier system Download PDF

Info

Publication number
CN102595590A
CN102595590A CN2012100726688A CN201210072668A CN102595590A CN 102595590 A CN102595590 A CN 102595590A CN 2012100726688 A CN2012100726688 A CN 2012100726688A CN 201210072668 A CN201210072668 A CN 201210072668A CN 102595590 A CN102595590 A CN 102595590A
Authority
CN
China
Prior art keywords
carrier wave
auxilliary carrier
auxilliary
regularly
terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2012100726688A
Other languages
Chinese (zh)
Other versions
CN102595590B (en
Inventor
朱昀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to CN201210072668.8A priority Critical patent/CN102595590B/en
Priority to PCT/CN2012/075506 priority patent/WO2013139074A1/en
Publication of CN102595590A publication Critical patent/CN102595590A/en
Application granted granted Critical
Publication of CN102595590B publication Critical patent/CN102595590B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • H04W56/004Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/08Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]

Abstract

The invention discloses an uplink synchronization method and an uplink synchronization device for a multicarrier system. The method comprises the followings steps that: a terminal acquires the uplink synchronization regulation quantity of an auxiliary carrier timing group, wherein specified performance parameters of each carrier in the auxiliary carrier timing group accord with a setting range; and the terminal performs uplink synchronization regulation on carriers in the auxiliary carrier timing group according to the uplink synchronization regulation quantity. According to the method and the device, a mode of performing uplink synchronization on each carrier in the auxiliary carrier timing group is adopted, so the problem of difficulty in realization of the uplink synchronization in a multicarrier application scene is solved, and when each carrier of a multicarrier terminal transmits an uplink signal, the signal of each carrier can reach a base station at the same time, so that services between the base station and the multicarrier terminal are ensured.

Description

The uplink synchronisation method of multicarrier system and device
Technical field
The present invention relates to the communications field, in particular to a kind of uplink synchronisation method and device of multicarrier system.
Background technology
Uplink synchronous is one of key technology of radio communication, and it is meant that specifically the upward signal that different terminal is adjusted separately sends opportunity, makes the upward signal that arrives the base station to arrive on the reception antenna port of base station at synchronization under the synchronous control of base station.Good uplink synchronous can reduce inter-user interference to greatest extent, and the quality of uplink synchronous performance is directly connected to the quality of whole system performance.
At present; The uplink synchronous of wireless Long Term Evolution (Long-Term Evolution abbreviates LTE as) system is achieved in that at first, the last upward signal that sends of base station receiving terminal; Estimating end path postpones and adjustment amount; Control command through medium access control (Media Access Control abbreviates MAC as) layer sends to the terminal with adjustment amount then, and the terminal receives the transmission opportunity that next time is adjusted in the back.For the LTE system of single carrier, said method is more effective; But along with the LTE system has introduced multi-transceiver technology, in the multicarrier scene, because path delay of each carrier wave is different, the base station can't use a unified time adjustment amount to adjust the up transmission opportunity of all carrier waves; In addition; In the multicarrier scene, the carrier wave that has possibly only be used for up in a very long time, and the carrier wave that has possibly only be used for descending; For only being used for up carrier wave; The base station is after estimating its path delay, and is descending because it is not used in, and can't directly through this carrier wave adjustment amount be handed down to the terminal.
Realize difficult problem to uplink synchronous in the multicarrier application scenarios in the correlation technique, do not propose effective solution at present as yet.
Summary of the invention
Realize difficult problem to uplink synchronous in the multicarrier application scenarios, the invention provides a kind of uplink synchronisation method and device of multicarrier system, to address the above problem at least.
According to an aspect of the present invention, a kind of uplink synchronisation method of multicarrier system is provided, has comprised: the terminal obtains the uplink synchronous adjustment amount that auxilliary carrier wave is regularly organized; The specified performance parameter of each carrier wave during wherein, auxilliary carrier wave is regularly organized meets setting range; Carrier wave during the terminal is regularly organized auxilliary carrier wave according to the uplink synchronous adjustment amount carries out the adjustment of uplink synchronous.
The terminal obtains before the uplink synchronous adjustment amount that auxilliary carrier wave regularly organizes; Said method also comprises: the terminal confirms that according to the specified performance parameter of above-mentioned auxilliary carrier wave the auxilliary carrier wave at above-mentioned auxilliary carrier wave place is regularly organized after receiving the auxilliary carrier configuration information that the base station issues on the main carrier; Above-mentioned terminal is divided into above-mentioned auxilliary carrier wave during definite above-mentioned auxilliary carrier wave regularly organizes, and the auxilliary carrier wave at above-mentioned auxilliary carrier wave place is regularly organized notice give above-mentioned base station.
Above-mentioned specified performance parameter is the frequency band parameter; Above-mentioned terminal is confirmed according to the specified performance parameter of above-mentioned auxilliary carrier wave that the auxilliary carrier wave at above-mentioned auxilliary carrier wave place is regularly organized and comprised: whether search according to the frequency band under the above-mentioned auxilliary carrier wave at above-mentioned terminal has already present auxilliary carrier wave regularly to organize; If the above-mentioned auxilliary carrier wave that above-mentioned terminal will find is regularly organized as the auxilliary carrier wave of above-mentioned auxilliary carrier wave and is regularly organized; If, above-mentioned terminal is not that new auxilliary carrier wave of above-mentioned auxilliary carrier wave generation is regularly organized.
Above-mentioned specified performance parameter is the frequency distance parameter; Above-mentioned terminal is confirmed according to the specified performance parameter of above-mentioned auxilliary carrier wave that the auxilliary carrier wave at above-mentioned auxilliary carrier wave place is regularly organized and comprised: the frequency distance of above-mentioned auxilliary carrier wave and the already present auxilliary carrier wave carrier wave in regularly organizing is calculated at above-mentioned terminal; If the frequency distance that calculates is less than distance to a declared goal, above-mentioned terminal is regularly organized above-mentioned already present auxilliary carrier wave as the auxilliary carrier wave of above-mentioned auxilliary carrier wave and is regularly organized; If the frequency distance of the carrier wave during above-mentioned auxilliary carrier wave and each already present auxilliary carrier wave are regularly organized is all more than or equal to above-mentioned distance to a declared goal, above-mentioned terminal is that new auxilliary carrier wave of above-mentioned auxilliary carrier wave generation is regularly organized.
The terminal obtains the uplink synchronous adjustment amount that auxilliary carrier wave regularly organizes and comprises: above-mentioned terminal listens to after activation that above-mentioned base station issues specifies the order of auxilliary carrier wave, the request of access at random of sending above-mentioned designated carrier to above-mentioned base station; Above-mentioned terminal receives the accidental access response that above-mentioned base station is returned, and wherein, above-mentioned accidental access response carries above-mentioned base station and assists the uplink synchronous primary quantity that carrier wave is regularly organized according to the above-mentioned definite above-mentioned auxilliary carrier wave place of request of inserting at random; The downstream signal timing value is confirmed according to above-mentioned accidental access response in above-mentioned terminal, and confirms the uplink synchronous adjustment amount that above-mentioned auxilliary carrier wave is regularly organized according to above-mentioned downstream signal timing value and above-mentioned uplink synchronous primary quantity.
The terminal obtains the uplink synchronous adjustment amount that auxilliary carrier wave regularly organizes and comprises: above-mentioned terminal receives the timing adjustment order that above-mentioned base station issues, and wherein, above-mentioned timing adjustment order carries the synchronous primary quantity that above-mentioned auxilliary carrier wave is regularly organized; Wherein, above-mentioned synchronous primary quantity is the time-delay when detecting upward signal that the auxilliary carrier wave at above-mentioned terminal regularly organizes and occurring of above-mentioned base station, confirms according to the clock of above-mentioned upward signal and above-mentioned inside of base station; The downstream signal timing value is confirmed according to above-mentioned timing adjustment order in above-mentioned terminal, and confirms the uplink synchronous adjustment amount that above-mentioned auxilliary carrier wave is regularly organized according to above-mentioned downstream signal timing value and above-mentioned uplink synchronous primary quantity.
The adjustment that carrier wave during above-mentioned terminal is regularly organized above-mentioned auxilliary carrier wave according to above-mentioned uplink synchronous adjustment amount carries out uplink synchronous comprises: whether the above-mentioned auxilliary carrier wave of above-mentioned terminal judges exists reference carrier in regularly organizing; If the upward signal transmitting time of the reference carrier of above-mentioned auxilliary carrier wave in regularly organizing is adjusted at above-mentioned terminal according to above-mentioned uplink synchronous adjustment amount; Activation carrier wave during above-mentioned auxilliary carrier wave is regularly organized except that above-mentioned reference carrier, above-mentioned terminal are adjusted the upward signal transmitting time of above-mentioned activation carrier wave according to the upward signal transmitting time of above-mentioned reference carrier; If not, the activation carrier wave of above-mentioned auxilliary carrier wave in regularly organizing adjusted according to above-mentioned uplink synchronous adjustment amount in above-mentioned terminal, and with above-mentioned activation carrier wave carrier wave as a reference.
Said method can also comprise: the deexcitation order of the auxilliary carrier wave that reception base station, above-mentioned terminal issues; Corresponding auxilliary carrier wave is confirmed according to above-mentioned deexcitation order in above-mentioned terminal, the auxilliary carrier wave of the above-mentioned correspondence of deletion from the auxilliary carrier wave at the auxilliary carrier wave place of above-mentioned correspondence is regularly organized; If during the auxilliary carrier wave that the auxilliary carrier wave at the auxilliary carrier wave of above-mentioned correspondence place does not activate in regularly organizing, the auxilliary carrier wave at the auxilliary carrier wave place of the above-mentioned correspondence of above-mentioned terminal deletion is regularly organized, and notifies above-mentioned base station.
The auxilliary carrier wave of above-mentioned correspondence is a reference carrier; After the auxilliary carrier wave of above-mentioned terminal above-mentioned correspondence of deletion from the auxilliary carrier wave at the auxilliary carrier wave place of above-mentioned correspondence is regularly organized, said method also comprises: above-mentioned terminal selects one to activate carrier wave as new reference carrier from the auxilliary carrier wave at the auxilliary carrier wave place of above-mentioned correspondence is regularly organized at random; Perhaps, above-mentioned terminal selects an activation carrier wave with above-mentioned reference carrier clocking error minimum as new reference carrier from the auxilliary carrier wave at the auxilliary carrier wave place of above-mentioned correspondence is regularly organized.
According to a further aspect in the invention, a kind of uplink synchronous device of multicarrier system is provided, has comprised: uplink synchronous adjustment amount acquisition module is used to obtain the uplink synchronous adjustment amount that auxilliary carrier wave is regularly organized; The specified performance parameter of each carrier wave during wherein, auxilliary carrier wave is regularly organized meets setting range; The uplink synchronous adjusting module, the carrier wave that the uplink synchronous adjustment amount that is used for obtaining according to uplink synchronous adjustment amount acquisition module is regularly organized auxilliary carrier wave carries out the adjustment of uplink synchronous.
Said apparatus can also comprise: auxilliary carrier wave is regularly organized determination module, is used for after receiving the auxilliary carrier configuration information that the base station issues on the main carrier, confirms that according to the specified performance parameter of above-mentioned auxilliary carrier wave the auxilliary carrier wave at above-mentioned auxilliary carrier wave place is regularly organized; Auxilliary carrier wave is regularly organized the division module, is used for that above-mentioned auxilliary carrier wave is divided into above-mentioned auxilliary carrier wave and regularly organizes the above-mentioned auxilliary carrier wave that determination module confirms and regularly organize; Notification module is used for the auxilliary carrier wave that above-mentioned auxilliary carrier wave is regularly organized the above-mentioned auxilliary carrier wave place of dividing Module Division regularly organized and is notified to above-mentioned base station.
Above-mentioned auxilliary carrier wave is regularly organized determination module and comprised: whether search the unit, be used for when above-mentioned specified performance parameter is the frequency band parameter, searching according to the frequency band under the above-mentioned auxilliary carrier wave has already present auxilliary carrier wave regularly to organize; First confirms the unit, and being used at the above-mentioned lookup result of searching the unit is under the situation that is, the above-mentioned auxilliary carrier wave that finds is regularly organized as the auxilliary carrier wave of above-mentioned auxilliary carrier wave regularly organized; First generation unit, being used at the above-mentioned lookup result of searching the unit is under the situation not, regularly organizes for above-mentioned auxilliary carrier wave generates a new auxilliary carrier wave.
Above-mentioned auxilliary carrier wave is regularly organized determination module and is comprised: the frequency distance computing unit, be used for when above-mentioned specified performance parameter is the frequency distance parameter, and calculate the frequency distance of above-mentioned auxilliary carrier wave and the already present auxilliary carrier wave carrier wave in regularly organizing; Second confirms the unit, when being used for result of calculation in the said frequencies metrics calculation unit and being the said frequencies distance less than distance to a declared goal, above-mentioned already present auxilliary carrier wave is regularly organized as the auxilliary carrier wave of above-mentioned auxilliary carrier wave regularly organize; Second generation unit; The frequency distance that is used for result of calculation in the said frequencies metrics calculation unit and is the carrier wave that above-mentioned auxilliary carrier wave and each already present auxilliary carrier wave regularly organize is regularly organized for above-mentioned auxilliary carrier wave generates a new auxilliary carrier wave during all more than or equal to above-mentioned distance to a declared goal.
Above-mentioned uplink synchronous adjustment amount acquisition module comprises: request transmitting unit, and after being used to listen to activation that above-mentioned base station issues and specifying the order of auxilliary carrier wave, the request of access at random of sending above-mentioned designated carrier to above-mentioned base station; The response receiving element; Be used to receive the accidental access response that above-mentioned base station is returned; Wherein, above-mentioned accidental access response carries the above-mentioned definite above-mentioned auxilliary carrier wave of request that inserts at random that sends according to above-mentioned request transmitting unit above-mentioned base station and belongs to the uplink synchronous primary quantity that auxilliary carrier wave is regularly organized; First adjustment amount is confirmed the unit; Be used for confirming the downstream signal timing value, and confirm the uplink synchronous adjustment amount that above-mentioned auxilliary carrier wave is regularly organized according to above-mentioned downstream signal timing value and above-mentioned uplink synchronous primary quantity according to the above-mentioned accidental access response that above-mentioned response receiving element receives.
Above-mentioned uplink synchronous adjustment amount acquisition module comprises: the order receiving element, be used to receive the timing adjustment order that above-mentioned base station issues, and wherein, above-mentioned timing adjustment order carries the synchronous primary quantity that above-mentioned auxilliary carrier wave is regularly organized; Wherein, above-mentioned synchronous primary quantity is the time-delay when detecting upward signal that the auxilliary carrier wave at above-mentioned terminal regularly organizes and occurring of above-mentioned base station, confirms according to the clock of above-mentioned upward signal and above-mentioned inside of base station; Second adjustment amount is confirmed the unit; Be used for confirming the downstream signal timing value, and confirm the uplink synchronous adjustment amount that above-mentioned auxilliary carrier wave is regularly organized according to above-mentioned downstream signal timing value and above-mentioned uplink synchronous primary quantity according to the above-mentioned timing adjustment order that the mentioned order receiving element receives.
Above-mentioned uplink synchronous adjusting module comprises: the reference carrier judging unit is used for judging that above-mentioned auxilliary carrier wave is regularly organized whether has reference carrier; The time adjustment unit is used in the judged result of above-mentioned reference carrier judging unit when being, adjusts the upward signal transmitting time of the reference carrier of above-mentioned auxilliary carrier wave in regularly organizing according to above-mentioned uplink synchronous adjustment amount; Activation carrier wave during above-mentioned auxilliary carrier wave is regularly organized except that above-mentioned reference carrier is adjusted the upward signal transmitting time of above-mentioned activation carrier wave according to the upward signal transmitting time of above-mentioned reference carrier; The carrier wave adjustment unit is used in the judgement structure of above-mentioned reference carrier judging unit for not the time, adjusts the activation carrier wave of above-mentioned auxilliary carrier wave in regularly organizing according to above-mentioned uplink synchronous adjustment amount, and with above-mentioned activation carrier wave carrier wave as a reference.
Said apparatus can also comprise: deexcitation order receiver module is used to receive the deexcitation order of the auxilliary carrier wave that the base station issues; Auxilliary carrier wave removing module is used for confirming corresponding auxilliary carrier wave according to the above-mentioned deexcitation order that above-mentioned deexcitation order receiver module receives, the auxilliary carrier wave of the above-mentioned correspondence of deletion from the auxilliary carrier wave at the auxilliary carrier wave place of above-mentioned correspondence is regularly organized; Auxilliary carrier wave is regularly organized removing module, is used for when the auxilliary carrier wave that the auxilliary carrier wave when above-mentioned correspondence belongs to is regularly organized the auxilliary carrier wave that does not activate, and deletes the auxilliary carrier wave at the auxilliary carrier wave place of above-mentioned correspondence and regularly organizes, and notify above-mentioned base station.
Said apparatus can also comprise with one of lower module: the first reference carrier determination module; Be used for when auxilliary carrier wave that above-mentioned auxilliary carrier wave is regularly organized the above-mentioned correspondence of removing module deletion is reference carrier, from the auxilliary carrier wave at the auxilliary carrier wave place of above-mentioned correspondence is regularly organized, select one to activate carrier wave at random as new reference carrier; The second reference carrier determination module; Be used for when auxilliary carrier wave that above-mentioned auxilliary carrier wave is regularly organized the above-mentioned correspondence of removing module deletion is reference carrier, from the auxilliary carrier wave at the auxilliary carrier wave place of above-mentioned correspondence is regularly organized, select an activation carrier wave with above-mentioned reference carrier clocking error minimum as new reference carrier.
Through the present invention; The pattern that adopts auxilliary carrier wave regularly to organize is carried out uplink synchronous to each carrier wave in organizing; Solved the problem of uplink synchronous realization difficulty in the multicarrier application scenarios; Each carrier wave that has guaranteed multi-carrier terminal is when sending upward signal, and the signal of each carrier wave can both arrive the base station simultaneously, and then has guaranteed the business of base station and terminal room.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is a sketch map of forming some carrier set according to the multicarrier in the multi-carrier terminal of the embodiment of the invention;
Fig. 2 is the uplink synchronisation method flow chart according to the multicarrier system of the embodiment of the invention;
Fig. 3 is the sketch map according to the terminal configuration carrier wave of the embodiment of the invention;
Fig. 4 is the carrier wave activation sketch map according to the embodiment of the invention;
Fig. 5 is a sketch map of realizing up timing according to the reference carrier of the embodiment of the invention according to descending timing;
Fig. 6 is the sketch map of safeguarding according to the up timing of the embodiment of the invention;
Fig. 7 is the sketch map according to the up timing adjustment of the embodiment of the invention;
Fig. 8 is the sketch map according to the carrier wave deexcitation of the embodiment of the invention;
Fig. 9 is the structured flowchart according to the uplink synchronous device of the multicarrier system of the embodiment of the invention;
Figure 10 is the concrete structure block diagram according to the uplink synchronous device of the multicarrier system of the embodiment of the invention;
Figure 11 is a structured flowchart of regularly organizing determination module according to the auxilliary carrier wave of the embodiment of the invention;
Figure 12 is a structured flowchart of regularly organizing determination module according to the auxilliary carrier wave of the another kind of the embodiment of the invention;
Figure 13 is the structured flowchart according to the uplink synchronous adjustment amount acquisition module of the embodiment of the invention;
Figure 14 is the structured flowchart according to the another kind of uplink synchronous adjustment amount acquisition module of the embodiment of the invention.
Embodiment
Hereinafter will and combine embodiment to specify the present invention with reference to accompanying drawing.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
The embodiment of the invention is primarily aimed at multi-carrier terminal and realizes that uplink synchronous describes, the sketch map of employing multi-carrier terminal as shown in Figure 1, and three frequency ranges, i.e. frequency ranges are supported in this terminal 1, frequency range 2, frequency range 3, the width of each frequency range and center frequency point have concrete regulation in International Telecommunications Union's (International Telecommunications Union abbreviates ITU as) standard, do not detailing here; Attend operator in these three frequency ranges and disposed some carrier waves, be i.e. carrier wave among Fig. 1 11To carrier wave 32, each carrier wave all drops in the corresponding frequency range here, and its carrier widths is variable, and at present, the bandwidth varying value that meets the LTE system has 1.4Mhz, 5Mhz, 10Mhz etc.In numerous carrier waves, carrier wave 21Be a special carrier wave, be called as main carrier.The terminal is under initial condition; Only be operated on the main carrier, base station (system side) notified subscriber equipment (User Equipment through main carrier with other carrier waves information of (being called auxilliary carrier wave) (comprising its frequency, information such as bandwidth) afterwards; Abbreviate UE as; Be also referred to as the terminal), when also work on auxilliary carrier wave in the needs terminal, the several auxilliary carrier waves of indicating terminal activation certain or certain are come through the control command on the main carrier in the base station.
Frequency range among Fig. 1, the number of carrier wave and bandwidth only are the signal effects, and the frequency range number that the terminal is supported in the engineering reality confirms that by terminal capability carrier wave number and bandwidth can be by operator according to network design scheme flexible configuration.
Fig. 2 shows the uplink synchronisation method flow chart according to the multicarrier system of the embodiment of the invention, and this method may further comprise the steps:
Step S202, the terminal obtains the uplink synchronous adjustment amount that auxilliary carrier wave is regularly organized; The specified performance parameter of each carrier wave during wherein, the auxilliary carrier wave of present embodiment is regularly organized meets setting range.
The performance parameter here can be the frequency band parameter, also can be frequency distance parameter of two intercarriers etc., and this performance parameter only is to be used for that different carrier waves is divided into different auxilliary carrier waves regularly to organize, and the embodiment of the invention is not done concrete restriction.
During concrete the realization, this auxilliary carrier wave is regularly organized and can be used TAG (TA Group, regularly group) expression, for multi-carrier terminal shown in Figure 1, is the example of setting up TAG according to frequency range, carrier wave 11, carrier wave 12And carrier wave 13Belong to frequency range 1, form TAG1; Carrier wave 21Form TAG2; Carrier wave 31And carrier wave 32Form TAG3.This wherein carrier wave 21 just exist from initial condition because be main carrier, so the terminal from initial just for it has distributed TAG2, and other carrier wave is along with the follow-up increase of configuration of base station; And the base station can also be deleted auxilliary carrier wave at any time, and at this moment corresponding TAG can be adjusted in the terminal, such as the base station with carrier wave 31, carrier wave 32All delete, making has not had carrier wave among the TAG3, and the terminal will be deleted TAG3 so, and if only deleted carrier wave 31, also have carrier wave so among the TAG3 32, need to keep.
Auxilliary carrier wave in the embodiment of the invention is regularly organized and is appreciated that and is above-mentioned TAG1 and TAG3.Here the TAG of indication is meant one group of carrier combination with identical Timing Advance; All carrier terminals in same group adopt the unified time lead to adjust their up transmission opportunity, the order that the base station is also only adjusted a TAG transmitting time.
Step S204, the carrier wave during the terminal is regularly organized above-mentioned auxilliary carrier wave according to the uplink synchronous adjustment amount carries out the adjustment of uplink synchronous.
The pattern that present embodiment adopts auxilliary carrier wave regularly to organize is carried out uplink synchronous to each carrier wave in organizing; Solved the problem of uplink synchronous realization difficulty in the multicarrier application scenarios; Each carrier wave that has guaranteed multi-carrier terminal is when sending upward signal; The signal of each carrier wave can both arrive the base station simultaneously, and then has guaranteed the business of base station and terminal room.
Above-mentioned auxilliary carrier wave regularly organize be carry out at the terminal before the uplink synchronous adjustment amount just ready-portioned; And follow-up terminal is in moving process; In the time of need carrying out uplink synchronous, do not need once more the auxilliary carrier wave at auxilliary carrier wave place regularly to be organized to adjust, which auxilliary carrier wave promptly auxilliary carrier wave belongs to is regularly organized and can when initial configuration is assisted carrier wave, accomplish; Based on this; Above-mentioned terminal obtains before the uplink synchronous adjustment amount that auxilliary carrier wave regularly organizes, and said method also comprises: the terminal confirms that according to the specified performance parameter of auxilliary carrier wave the auxilliary carrier wave at this auxilliary carrier wave place is regularly organized after receiving the auxilliary carrier configuration information that the base station issues on the main carrier; The terminal will be assisted carrier wave and will be divided into during definite auxilliary carrier wave regularly organizes, and the auxilliary carrier wave that will assist the carrier wave place is regularly organized notice and given the base station.This carrier wave dividing mode can make have identical Timing Advance carrier combination together, simultaneously, terminal configuration behind new auxilliary carrier wave and the TAG with each updated information informing base station, be convenient to the terminal and carry out uplink synchronous.
Specified performance parameter in the embodiment of the invention is that example describes with frequency band parameter or frequency distance parameter; When being the frequency band parameter for the specified performance parameter, above-mentioned terminal is confirmed according to the specified performance parameter of auxilliary carrier wave that the auxilliary carrier wave at auxilliary carrier wave place is regularly organized and can be adopted following manner to realize: whether search according to the frequency band under should auxilliary carrier wave at the terminal has already present auxilliary carrier wave regularly to organize; If the auxilliary carrier wave that the terminal will find is regularly organized as the auxilliary carrier wave of auxilliary carrier wave and is regularly organized; If, the terminal is not that new auxilliary carrier wave of auxilliary carrier wave generation is regularly organized.For example: the sketch map of terminal configuration carrier wave as shown in Figure 3 may further comprise the steps:
Step S300, receive on main carrier about disposing the information of auxilliary carrier wave at the terminal.
Step S302, whether existing auxilliary carrier wave was configured frequency band under terminal judges should be assisted carrier wave; For example, the terminal judges at first which frequency band this auxilliary carrier wave drops on, whether has had auxilliary carrier wave to be configured near this frequency band.If have, execution in step S304; If otherwise, execution in step S306.
Step S304, be included into the auxilliary carrier wave of this carrier wave with original configuration among the same TAG at the terminal.
Step S306, the newly-built TAG in terminal, and this carrier wave put among the new TAG.
Step S308, the base station is given with the TAG information reporting of this carrier wave in the terminal.
Above-mentioned carrier wave configuration mode is simple, is convenient to operation.
Drop on according to carrier wave and to form a kind of implementation method that TAG just forms TAG on that frequency range; Other implementation method can also be arranged; For example; When above-mentioned specified performance parameter was the frequency distance parameter, above-mentioned terminal was confirmed according to the specified performance parameter of auxilliary carrier wave that the auxilliary carrier wave at auxilliary carrier wave place is regularly organized and can be adopted following manner to realize: the frequency distance of auxilliary carrier wave and the already present auxilliary carrier wave carrier wave in regularly organizing is calculated at the terminal; If the frequency distance that calculates is less than distance to a declared goal, the terminal is regularly organized already present auxilliary carrier wave as the auxilliary carrier wave of auxilliary carrier wave and is regularly organized; If the frequency distance of the carrier wave during auxilliary carrier wave and each already present auxilliary carrier wave are regularly organized is all more than or equal to distance to a declared goal, the terminal is that new auxilliary carrier wave of auxilliary carrier wave generation is regularly organized.Such as between any carrier wave j of, the carrier wave i of new configuration and configuration before at a distance of how many frequency distances, if surpass certain distance, then carrier wave i is divided among the TAG that carrier wave j belongs to, otherwise a newly-built TAG and put into carrier wave i.This implementation has adopted the calculated rate distance, and its reliability is high.
Behind the good above-mentioned auxilliary carrier wave of terminal configuration; On this carrier wave, do not have transfer of data, that is to say that this carrier wave is in resting state, it is synchronous need not to carry out up timing; The maintenance of terminal continuation is afterwards intercepted the base station, according to the content trigger carrier wave activation of intercepting.Carrier wave as shown in Figure 4 activates sketch map, and this activation is following:
Step S402, the base station is sent the order indicating terminal and is activated certain carrier wave;
Because business has been arranged, need to activate certain carrier wave, this moment, the order that activates this carrier wave was sent in the base station, and this order is equivalent to above-mentioned activation command.
Step S404 after the terminal receives mentioned order, sends the request that inserts at random to the base station on this carrier wave;
In random access procedure, the initialization of the uplink synchronous of this carrier wave is obtained at the terminal, and concrete steps are following: the identical request that inserts is at random constantly sent to the base station in the terminal, until receiving replying of base station.
Further, this inserts at random asks to be one section all to be known targeting sequencing to terminal and base station, and once all improves transmitting power before terminal transmission each time repeats to compare in process of transmitting.When targeting sequencing is sent at the terminal, following 2 kinds of possibilities are arranged:
First kind of situation; If had at least one carrier wave to be in state of activation among the TAG under this carrier wave (carrier wave A); A carrier wave (carrier wave R) that is called as reference carrier is necessarily arranged among this TAG so, and opportunity of targeting sequencing is sent at the terminal on carrier wave A consistent opportunity with the up transmission of carrier wave R.
Second kind of situation, if also do not have carrier wave to be in state of activation among the TAG under the carrier wave A, on carrier wave A, to send the opportunity of targeting sequencing be at random at the terminal so.
Step S406 after the base station listens to above-mentioned access request, sends accidental access response, sends initialization timing simultaneously;
Further, this initialization timing is placed in the medium control messages (MAC CE (Command Element)) and sends, and takies 11bit, and correspondingly its span is [0; 1,2 ..., 1282]; It represents Timing Advance value TA=[0,1,2; ..., 1282] * Ts (Ts is a chronomere minimum in the LTE system, Ts=1/ (15000*2048) second).
Step S408, the terminal receives that stopping to insert at random request behind the accidental access response of base station sends, and the up transmission opportunity on this carrier wave of initialization, begins then transmitting data on this carrier wave and between the base station.Two kinds of situations among the corresponding step S404, data transmission procedure is carried out in the terminal of present embodiment and base station, specifically can realize in the following way:
When first kind of situation, terminal are sent data on carrier wave A, its up transmission opportunity all the time with affiliated TAG in reference carrier be consistent.
Second kind of situation, carrier wave A is current unique carrier wave that is activated among the TAG under it, the terminal according to the downstream signal that receives regularly and MAC CE adjust the timing of its upward signal, and carrier wave A is defined as the reference carrier of this TAG.
Can find out that from aforementioned description the up timing on each carrier wave of terminal initial is the basis with TAG, promptly has only the object of reference of a unique reference carrier as up timing among each TAG, the up timing and the reference carrier of other carrier wave are consistent.
Further, the terminal can indicate carrier-grade through flag bit (index) is set, and representes that such as index=0 this carrier wave is the reference carrier of affiliated TAG.Preferably; Can also be for the non-reference carrier that is activated through its grade of index value representation (such as index=1; 2,3 etc.) carrier wave and the relation of the clocking error between reference carrier (clocking error such as between this carrier wave of the more little expression of index and reference carrier is more little) to represent this grade.The benefit that the index value is set is when the deexcitation reference carrier, to find the replacer in time.Because the carrier wave clocking error between the two that distance reference carrier wave distance is far away more is big more, the terminal can define the index value based on the distance between carrier wave and the reference carrier.Based on this, the adjustment that the carrier wave during the terminal among the above-mentioned steps S204 is regularly organized auxilliary carrier wave according to the uplink synchronous adjustment amount carries out uplink synchronous can comprise: whether the auxilliary carrier wave of terminal judges exists reference carrier in regularly organizing; If, the upward signal transmitting time of the reference carrier during the terminal is regularly organized according to the auxilliary carrier wave of uplink synchronous adjustment amount adjustment; Activation carrier wave during auxilliary carrier wave is regularly organized except that reference carrier, terminal activate the upward signal transmitting time of carrier wave according to the upward signal transmitting time adjustment of reference carrier; If not, the activation carrier wave during the terminal is regularly organized according to the auxilliary carrier wave of uplink synchronous adjustment amount adjustment, and will activate carrier wave carrier wave as a reference.
The concrete realization of the up timing of the reference carrier in step S404 and step S408 is as shown in Figure 5.Figure the first half is represented the moment (descending timing) of the detected downstream signal that is sent by the base station in terminal, and figure the latter half is represented the timing of reference carrier upward signal.The moment that downstream signal arrives is at first detected at the terminal, confirms descending timing then because the length of each time slot is 1ms in the LTE system, the terminal after can detected downstream signal due in every moment at a distance from 1ms as descending timing; In descending timing, shift to an earlier date TA then as up timing.
Because the multipath characteristics of wireless environment; The downstream signal that send the base station can have a plurality of copy incoming terminals; In Project Realization; The due in that downstream signal is detected at the terminal specifically is meant the directly due in of signal (being first signal copy) of terminal detected first, perhaps is meant the due in of the detected most powerful path signal in terminal (promptly the strongest signal copy).
It may be noted that in addition; The timing of downstream signal is evenly spaced among Fig. 5, and this is the sketch map under the ideal situation, in actual environment; The detected descending arriving signal in terminal arrives inhomogeneous often variation, and descending timing also will be according to the arriving signal that detects adjustment constantly and at any time.
Based on the activation of above-mentioned carrier wave, the above-mentioned uplink synchronous adjustment amount that present embodiment obtains can be realized through following manner: 1) terminal listens to after activation that the base station issues specifies the order of auxilliary carrier wave, the request of access at random of sending designated carrier to the base station; 2) terminal receives the accidental access response that the base station is returned, and wherein, accidental access response carries the uplink synchronous primary quantity (TA) that the base station is regularly organized according to the definite auxilliary carrier wave in auxilliary carrier wave place of the request that inserts at random; 3) the downstream signal timing value is confirmed according to accidental access response in the terminal, and confirms the uplink synchronous adjustment amount that auxilliary carrier wave is regularly organized according to downstream signal timing value and uplink synchronous primary quantity.
The base station is in the process that continues with the terminal room transmission, and the base station can remain the detection to the upward signal due in, and along with moving or the variation of wireless environment of terminal, its certain carrier wave upward signal can not keep synchronous always.When the base station detects this error, the timing at base station meeting transmitting order to lower levels adjustment terminal, the sketch map that the up timing that the embodiment of the invention as shown in Figure 6 provides is safeguarded, its concrete steps are following:
Step S602, the base station goes out up timing adjustment amount based on the upward signal that receives and the clock calculation of inside of base station, and sends regularly adjustment order and give the terminal.
Further, identical with initialization timing processing mode in the foregoing description, the timing adjustment order of present embodiment is placed in the medium control messages (MAC CE) sends, but handle with initialization timing different is; Regularly the adjustment order only takies 6bit, and correspondingly its span is [0,1,2; ..., 63], it represents Timing Advance value TA=[0,1; 2 ..., 1282] * Ts.
Further, corresponding TAG information is also carried in the base station when sending regularly amount, and what represent its adjustment is the timing of that TAG.
Step S604, corresponding TAG is found after receiving that regularly adjustment is ordered in the terminal, goes up all carrier waves that are activated with using this TAG of TA value adjustment, and adjusts their up transmission timing.
Further, identical with before, the concrete realization of the timing of up transmission confirmed (with reference to figure 5) by downstream signal timing and MAC CE.
In the engineering reality,, so under the preferable case,, then readjust its up timing in the n+6 sub-frame if the terminal receives regularly adjustment order in n sub-frame (Subframe) because the decoding terminals down order needs the regular hour, as shown in Figure 7.
Based on above-mentioned row timing maintenance process; Terminal among the step S202 obtains the uplink synchronous adjustment amount that auxilliary carrier wave regularly organizes and can also comprise: the terminal receives the timing adjustment order that the base station issues; Wherein, regularly the adjustment order carries the synchronous primary quantity that auxilliary carrier wave is regularly organized; Wherein, this synchronous primary quantity is base station time-delay when detecting upward signal that the auxilliary carrier wave at terminal regularly organizes and occurring, and confirms based on the clock of upward signal and this inside of base station; The downstream signal timing value is confirmed based on above-mentioned timing adjustment order in the terminal, and confirms the uplink synchronous adjustment amount that auxilliary carrier wave is regularly organized based on downstream signal timing value and uplink synchronous primary quantity (TA).
Certain auxilliary carrier wave both can have been activated in needs base station according to business, also can deexcitation certain be in the auxilliary carrier wave of state of activation, the process chart at terminal during the auxilliary carrier wave of base station deexcitation as shown in Figure 8, concrete steps are following:
Step S802, after the terminal listened to the control command of certain the auxilliary carrier wave of deexcitation (present embodiment is that example describes with carrier wave A) that sends the base station, the terminal terminated in the transfer of data on the carrier wave A;
Step S804, whether this carrier wave of terminal judges A is the reference carrier among certain TAG, if then change step S806, otherwise change step S810;
Whether also have other to be in the carrier wave of state of activation among the TAG under the step S806, this carrier wave of terminal judges A, if having, execution in step S808; If no, execution in step S810;
Step S808, a carrier wave is selected as new reference carrier in the terminal from the activation carrier wave of this TAG; The terminal selects a new reference carrier that dual mode is arranged:
Mode one, the terminal selects a carrier wave as new reference carrier in the remaining activation carrier wave of this TAG randomly;
Mode two, corresponding to the carrier wave flag bit set-up mode among the step S408, the minimum carrier wave (for example, this carrier wave is carrier wave B) of index carrier wave is as a reference selected at the terminal in the remaining activation carrier wave of this TAG.Clocking error between carrier wave B and former reference carrier is minimum, can think that therefore it is left synchronisation source the most reliably, can reduce the adjustment jump amount of carrier wave when new reference carrier is synchronous.
Further, the terminal changes the index value of new reference carrier into zero, and adjusts to the up timing of other carrier wave in the TAG identical with new reference carrier.
Step S810, this carrier wave of terminal deexcitation A.
If behind the above-mentioned carrier wave A of terminal deexcitation, there are not carrier wave that activates and the carrier wave that is in dormancy among the TAG at its place, then the terminal will be in inside with this TAG deletion.
Based on the flow process of above-mentioned deexcitation carrier wave, the uplink synchronisation method of above-mentioned multicarrier system also comprises: the deexcitation order of the auxilliary carrier wave that reception base station, terminal issues; Corresponding auxilliary carrier wave is confirmed according to deexcitation order in the terminal, and deletion should auxilliary carrier wave from the auxilliary carrier wave at the auxilliary carrier wave place of correspondence is regularly organized; If during the auxilliary carrier wave that the auxilliary carrier wave at auxilliary carrier wave place that should correspondence does not activate in regularly organizing, the auxilliary carrier wave at the auxilliary carrier wave place that terminal deletion is corresponding is regularly organized, and informing base station.The TAG that this mode can make the terminal safeguard is optimized, and reduces maintenance cost.
If the auxilliary carrier wave of above-mentioned correspondence is a reference carrier; After the auxilliary carrier wave of terminal deletion correspondence from the auxilliary carrier wave at the auxilliary carrier wave place of correspondence is regularly organized, this method also comprises: the terminal selects one to activate carrier wave as new reference carrier from the auxilliary carrier wave at the auxilliary carrier wave place of correspondence is regularly organized at random; Perhaps, the terminal selects an activation carrier wave with reference carrier clocking error minimum as new reference carrier from the auxilliary carrier wave at the auxilliary carrier wave place of correspondence is regularly organized.Again definite mode of this reference carrier can make things convenient for the carrier wave among the TAG to carry out uplink synchronous.
Corresponding to said method, the embodiment of the invention also provides a kind of uplink synchronous device of multicarrier system, and this device can be arranged on the terminal and realize, and is as shown in Figure 9, and this device comprises with lower module:
Uplink synchronous adjustment amount acquisition module 92 is used to obtain the uplink synchronous adjustment amount that auxilliary carrier wave is regularly organized; The specified performance parameter of each carrier wave during wherein, auxilliary carrier wave is regularly organized meets setting range;
Uplink synchronous adjusting module 94 links to each other with uplink synchronous adjustment amount acquisition module 92, and the carrier wave that the uplink synchronous adjustment amount that is used for obtaining according to uplink synchronous adjustment amount acquisition module 92 is regularly organized auxilliary carrier wave carries out the adjustment of uplink synchronous.
The pattern that present embodiment adopts auxilliary carrier wave regularly to organize is carried out uplink synchronous to each carrier wave in organizing; Solved the problem of uplink synchronous realization difficulty in the multicarrier application scenarios; Each carrier wave that has guaranteed multi-carrier terminal is when sending upward signal; The signal of each carrier wave can both arrive the base station simultaneously, and then has guaranteed the business of base station and terminal room.
For the ease of each carrier wave is divided, present embodiment provides a kind of uplink synchronous device concrete structure block diagram of multicarrier system, and is shown in figure 10, and on the basis of above-mentioned Fig. 9, this device also comprises with lower module:
Auxilliary carrier wave is regularly organized determination module 93, is used for after receiving the auxilliary carrier configuration information that the base station issues on the main carrier, confirms that based on the specified performance parameter of auxilliary carrier wave the auxilliary carrier wave at auxilliary carrier wave place is regularly organized;
Auxilliary carrier wave is regularly organized and is divided module 96, regularly organizes determination module 93 with auxilliary carrier wave and links to each other, is used for that auxilliary carrier wave is divided into auxilliary carrier wave and regularly organizes and confirm that the definite auxilliary carrier wave of 93 modules regularly organizes;
Notification module 95 is regularly organized with auxilliary carrier wave and to be divided module 96 and link to each other with uplink synchronous adjustment amount acquisition module 92, is used for that auxilliary carrier wave is regularly organized auxilliary carrier wave that the auxilliary carrier wave of dividing module 96 divisions belongs to and regularly organizes and be notified to the base station.
Above-mentioned auxilliary carrier wave is regularly organized determination module 93 can have multiple implementation, and auxilliary carrier wave shown in figure 11 is regularly organized the structured flowchart of determination module, and this module comprises like lower unit:
Whether search unit 932, be used for when the specified performance parameter is the frequency band parameter, searching according to the frequency band under the auxilliary carrier wave has already present auxilliary carrier wave regularly to organize;
First confirms unit 934, and searches unit 932 and links to each other, and being used at the lookup result of searching unit 932 is under the situation that is, the auxilliary carrier wave that finds is regularly organized as the auxilliary carrier wave of assisting carrier wave regularly organized;
First generation unit 936 and is searched unit 932 and is linked to each other, be used for the lookup result of searching unit 932 for situation not under, be that auxilliary carrier wave generates a new auxilliary carrier wave and regularly organizes.
The auxilliary carrier wave of another kind shown in figure 12 is regularly organized the structured flowchart of determination module, and this module comprises with lower unit:
Frequency distance computing unit 931 is used for when the specified performance parameter is the frequency distance parameter, the frequency distance of the carrier wave during auxilliary carrier wave of calculating and already present auxilliary carrier wave are regularly organized;
Second confirms to link to each other with frequency distance computing unit 931 unit 933, when being used for result of calculation at frequency distance computing unit 931 and being frequency distance less than distance to a declared goal, already present auxilliary carrier wave is regularly organized as the auxilliary carrier wave of assisting carrier wave regularly organize;
Second generation unit 935; Link to each other with frequency distance computing unit 931; The frequency distance that is used for result of calculation at frequency distance computing unit 931 and is the carrier wave that auxilliary carrier wave and each already present auxilliary carrier wave regularly organize is that new auxilliary carrier wave of auxilliary carrier wave generation is regularly organized during all more than or equal to distance to a declared goal.
Figure 13 is the structured flowchart according to the uplink synchronous adjustment amount acquisition module of the embodiment of the invention, and based on the uplink synchronous mode in the carrier wave activation, uplink synchronous adjustment amount acquisition module can comprise with lower unit:
Request transmitting unit 922, after being used to listen to activation that the base station issues and specifying the order of auxilliary carrier wave, the request of access at random of sending designated carrier to the base station;
Response receiving element 924; Link to each other with request transmitting unit 922; Be used to receive the accidental access response that the base station is returned, wherein, accidental access response carries the definite auxilliary carrier wave of the request that inserts at random that sends based on request transmitting unit the base station and belongs to the uplink synchronous primary quantity that auxilliary carrier wave is regularly organized;
First adjustment amount is confirmed unit 926; Link to each other with response receiving element 924; Be used for confirming the downstream signal timing value, and confirm the uplink synchronous adjustment amount that auxilliary carrier wave is regularly organized according to downstream signal timing value and uplink synchronous primary quantity according to the accidental access response that response receiving element 924 receives.
The structured flowchart of another kind of uplink synchronous adjustment amount acquisition module shown in figure 14, based on the uplink synchronous maintenance process, the uplink synchronous adjustment amount acquisition module of present embodiment can comprise with lower unit:
Order receiving element 921 is used to receive the timing adjustment order that the base station issues, and wherein, regularly the adjustment order carries the synchronous primary quantity that auxilliary carrier wave is regularly organized; Wherein, synchronously primary quantity is base station time-delay when detecting upward signal that the auxilliary carrier wave at terminal regularly organizes and occurring, and is definite according to the clock of upward signal and inside of base station;
Second adjustment amount is confirmed unit 923; Link to each other with order receiving element 921; The downstream signal timing value is confirmed in the timing adjustment order that is used for receiving according to order receiving element 921, and confirms the uplink synchronous adjustment amount that auxilliary carrier wave is regularly organized according to downstream signal timing value and uplink synchronous primary quantity.
Preferably, above-mentioned uplink synchronous adjusting module comprises: the reference carrier judging unit is used for judging auxilliary carrier wave regularly organizes whether there is reference carrier; The time adjustment unit links to each other with the reference carrier judging unit, is used in the judged result of reference carrier judging unit when being the upward signal transmitting time of the reference carrier in regularly organizing according to the auxilliary carrier wave of uplink synchronous adjustment amount adjustment; Activation carrier wave during auxilliary carrier wave is regularly organized except that reference carrier activates the upward signal transmitting time of carrier wave according to the adjustment of the upward signal transmitting time of reference carrier; The carrier wave adjustment unit links to each other with the reference carrier judging unit, is used in the judgement structure of reference carrier judging unit for not the time, and the activation carrier wave in regularly organizing according to the auxilliary carrier wave of uplink synchronous adjustment amount adjustment, and will activate carrier wave carrier wave as a reference.
Consider that there is the operation of deexcitation in carrier wave, said apparatus also comprises: deexcitation order receiver module is used to receive the deexcitation order of the auxilliary carrier wave that the base station issues; Auxilliary carrier wave removing module links to each other with deexcitation order receiver module, is used for confirming corresponding auxilliary carrier wave according to the deexcitation order that deexcitation order receiver module receives the auxilliary carrier wave of deletion correspondence from the auxilliary carrier wave at the auxilliary carrier wave place of correspondence is regularly organized; Auxilliary carrier wave is regularly organized removing module, links to each other with auxilliary carrier wave removing module, is used for when the auxilliary carrier wave at corresponding auxilliary carrier wave place is regularly organized the auxilliary carrier wave that does not activate, and the auxilliary carrier wave at the auxilliary carrier wave place that deletion is corresponding is regularly organized, and informing base station.
Mode corresponding to the renewal reference carrier among the said method embodiment; Said apparatus can also comprise with one of lower module: the first reference carrier determination module; Be used for when auxilliary carrier wave that auxilliary carrier wave is regularly organized the correspondence of removing module deletion is reference carrier, from the auxilliary carrier wave at the auxilliary carrier wave place of correspondence is regularly organized, select one to activate carrier wave at random as new reference carrier; Perhaps; The second reference carrier determination module; Be used for when auxilliary carrier wave that auxilliary carrier wave is regularly organized the correspondence of removing module deletion is reference carrier, from the auxilliary carrier wave at the auxilliary carrier wave place of correspondence is regularly organized, select an activation carrier wave with reference carrier clocking error minimum as new reference carrier.
From above description, can find out; The embodiment of the invention has guaranteed that each carrier wave of multi-carrier terminal is when sending upward signal; The signal of each carrier wave can both arrive the base station simultaneously; And this due in also is consistent between terminal and terminal, for business assurance is provided smoothly, strengthened the stability and the practicality of system.
Obviously, it is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element; Thereby; Can they be stored in the storage device and carry out, and in some cases, can carry out step shown or that describe with the order that is different from here by calculation element; Perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (18)

1. the uplink synchronisation method of a multicarrier system is characterized in that comprising:
The terminal obtains the uplink synchronous adjustment amount that auxilliary carrier wave is regularly organized; The specified performance parameter of each carrier wave during wherein, said auxilliary carrier wave is regularly organized meets setting range;
Carrier wave during said terminal is regularly organized said auxilliary carrier wave according to said uplink synchronous adjustment amount carries out the adjustment of uplink synchronous.
2. method according to claim 1 is characterized in that, the terminal obtains before the uplink synchronous adjustment amount that auxilliary carrier wave regularly organizes, and said method also comprises:
The terminal confirms that according to the specified performance parameter of said auxilliary carrier wave the auxilliary carrier wave at said auxilliary carrier wave place is regularly organized after receiving the auxilliary carrier configuration information that the base station issues on the main carrier;
Said terminal is divided into said auxilliary carrier wave during definite said auxilliary carrier wave regularly organizes, and the auxilliary carrier wave at said auxilliary carrier wave place is regularly organized notice give said base station.
3. method according to claim 2 is characterized in that, said specified performance parameter is the frequency band parameter;
Said terminal is confirmed according to the specified performance parameter of said auxilliary carrier wave that the auxilliary carrier wave at said auxilliary carrier wave place is regularly organized and is comprised:
Whether search according to the frequency band under the said auxilliary carrier wave at said terminal has already present auxilliary carrier wave regularly to organize;
If the said auxilliary carrier wave that said terminal will find is regularly organized as the auxilliary carrier wave of said auxilliary carrier wave and is regularly organized; If not, said terminal is that new auxilliary carrier wave of said auxilliary carrier wave generation is regularly organized.
4. method according to claim 2 is characterized in that, said specified performance parameter is the frequency distance parameter;
Said terminal is confirmed according to the specified performance parameter of said auxilliary carrier wave that the auxilliary carrier wave at said auxilliary carrier wave place is regularly organized and is comprised:
The frequency distance of said auxilliary carrier wave and the already present auxilliary carrier wave carrier wave in regularly organizing is calculated at said terminal;
If the frequency distance that calculates is less than distance to a declared goal, said terminal is regularly organized said already present auxilliary carrier wave as the auxilliary carrier wave of said auxilliary carrier wave and is regularly organized;
If the frequency distance of the carrier wave during said auxilliary carrier wave and each already present auxilliary carrier wave are regularly organized is all more than or equal to said distance to a declared goal, said terminal is that new auxilliary carrier wave of said auxilliary carrier wave generation is regularly organized.
5. method according to claim 1 is characterized in that, the terminal obtains the uplink synchronous adjustment amount that auxilliary carrier wave regularly organizes and comprises:
Said terminal listens to after activation that said base station issues specifies the order of auxilliary carrier wave, the request of access at random of sending said designated carrier to said base station;
Said terminal receives the accidental access response that said base station is returned, and wherein, said accidental access response carries said base station and assists the uplink synchronous primary quantity that carrier wave is regularly organized according to the said definite said auxilliary carrier wave place of request of inserting at random;
The downstream signal timing value is confirmed according to said accidental access response in said terminal, and confirms the uplink synchronous adjustment amount that said auxilliary carrier wave is regularly organized according to said downstream signal timing value and said uplink synchronous primary quantity.
6. method according to claim 1 is characterized in that, the terminal obtains the uplink synchronous adjustment amount that auxilliary carrier wave regularly organizes and comprises:
Said terminal receives the timing adjustment order that said base station issues, and wherein, said timing adjustment order carries the synchronous primary quantity that said auxilliary carrier wave is regularly organized; Wherein, said synchronous primary quantity is the time-delay when detecting upward signal that the auxilliary carrier wave at said terminal regularly organizes and occurring of said base station, confirms according to the clock of said upward signal and said inside of base station;
The downstream signal timing value is confirmed based on said timing adjustment order in said terminal, and confirms the uplink synchronous adjustment amount that said auxilliary carrier wave is regularly organized based on said downstream signal timing value and said uplink synchronous primary quantity.
7. method according to claim 1 is characterized in that, the adjustment that the carrier wave during said terminal is regularly organized said auxilliary carrier wave according to said uplink synchronous adjustment amount carries out uplink synchronous comprises:
Whether the said auxilliary carrier wave of said terminal judges exists reference carrier in regularly organizing;
If the upward signal transmitting time of the reference carrier of said auxilliary carrier wave in regularly organizing is adjusted at said terminal according to said uplink synchronous adjustment amount; Activation carrier wave during said auxilliary carrier wave is regularly organized except that said reference carrier, said terminal are adjusted the upward signal transmitting time of said activation carrier wave according to the upward signal transmitting time of said reference carrier;
If not, the activation carrier wave of said auxilliary carrier wave in regularly organizing adjusted based on said uplink synchronous adjustment amount in said terminal, and with said activation carrier wave carrier wave as a reference.
8. according to each described method of claim 1-7, it is characterized in that said method also comprises:
The deexcitation order of the auxilliary carrier wave that reception base station, said terminal issues;
Corresponding auxilliary carrier wave is confirmed according to said deexcitation order in said terminal, the auxilliary carrier wave of the said correspondence of deletion from the auxilliary carrier wave at the auxilliary carrier wave place of said correspondence is regularly organized;
If during the auxilliary carrier wave that the auxilliary carrier wave at the auxilliary carrier wave of said correspondence place does not activate in regularly organizing, the auxilliary carrier wave at the auxilliary carrier wave place of the said correspondence of said terminal deletion is regularly organized, and notifies said base station.
9. method according to claim 8 is characterized in that, the auxilliary carrier wave of said correspondence is a reference carrier;
After the auxilliary carrier wave of said terminal said correspondence of deletion from the auxilliary carrier wave at the auxilliary carrier wave place of said correspondence is regularly organized, said method also comprises: said terminal selects one to activate carrier wave as new reference carrier from the auxilliary carrier wave at the auxilliary carrier wave place of said correspondence is regularly organized at random; Perhaps, said terminal selects an activation carrier wave with said reference carrier clocking error minimum as new reference carrier from the auxilliary carrier wave at the auxilliary carrier wave place of said correspondence is regularly organized.
10. the uplink synchronous device of a multicarrier system is characterized in that comprising:
Uplink synchronous adjustment amount acquisition module is used to obtain the uplink synchronous adjustment amount that auxilliary carrier wave is regularly organized; The specified performance parameter of each carrier wave during wherein, said auxilliary carrier wave is regularly organized meets setting range;
The uplink synchronous adjusting module is used for carrying out the adjustment of uplink synchronous according to the carrier wave that the said uplink synchronous adjustment amount that said uplink synchronous adjustment amount acquisition module obtains is regularly organized said auxilliary carrier wave.
11. device according to claim 10 is characterized in that, said device also comprises:
Auxilliary carrier wave is regularly organized determination module, is used for after receiving the auxilliary carrier configuration information that the base station issues on the main carrier, confirms that based on the specified performance parameter of said auxilliary carrier wave the auxilliary carrier wave at said auxilliary carrier wave place is regularly organized;
Auxilliary carrier wave is regularly organized the division module, is used for that said auxilliary carrier wave is divided into said auxilliary carrier wave and regularly organizes the said auxilliary carrier wave that determination module confirms and regularly organize;
Notification module is used for the auxilliary carrier wave that said auxilliary carrier wave is regularly organized the said auxilliary carrier wave place of dividing Module Division regularly organized and is notified to said base station.
12. device according to claim 11 is characterized in that, said auxilliary carrier wave is regularly organized determination module and is comprised:
Whether search the unit, be used for when said specified performance parameter is the frequency band parameter, searching according to the frequency band under the said auxilliary carrier wave has already present auxilliary carrier wave regularly to organize;
First confirms the unit, and being used at the said lookup result of searching the unit is under the situation that is, the said auxilliary carrier wave that finds is regularly organized as the auxilliary carrier wave of said auxilliary carrier wave regularly organized;
First generation unit, being used at the said lookup result of searching the unit is under the situation not, regularly organizes for said auxilliary carrier wave generates a new auxilliary carrier wave.
13. device according to claim 11 is characterized in that, said auxilliary carrier wave is regularly organized determination module and is comprised:
The frequency distance computing unit is used for when said specified performance parameter is the frequency distance parameter, calculates the frequency distance of said auxilliary carrier wave and the already present auxilliary carrier wave carrier wave in regularly organizing;
Second confirms the unit, when being used for result of calculation at said frequency distance computing unit and being said frequency distance less than distance to a declared goal, said already present auxilliary carrier wave is regularly organized as the auxilliary carrier wave of said auxilliary carrier wave regularly organize;
Second generation unit; The frequency distance that is used for result of calculation at said frequency distance computing unit and is the carrier wave that said auxilliary carrier wave and each already present auxilliary carrier wave regularly organize is regularly organized for said auxilliary carrier wave generates a new auxilliary carrier wave during all more than or equal to said distance to a declared goal.
14. device according to claim 10 is characterized in that, said uplink synchronous adjustment amount acquisition module comprises:
Request transmitting unit, after being used to listen to activation that said base station issues and specifying the order of auxilliary carrier wave, the request of access at random of sending said designated carrier to said base station;
The response receiving element; Be used to receive the accidental access response that said base station is returned; Wherein, said accidental access response carries said base station and belongs to the uplink synchronous primary quantity that auxilliary carrier wave is regularly organized based on the said definite said auxilliary carrier wave of request that inserts at random that the described request transmitting element sends;
First adjustment amount is confirmed the unit; Be used for confirming the downstream signal timing value, and confirm the uplink synchronous adjustment amount that said auxilliary carrier wave is regularly organized according to said downstream signal timing value and said uplink synchronous primary quantity according to the said accidental access response that said response receiving element receives.
15. device according to claim 10 is characterized in that, said uplink synchronous adjustment amount acquisition module comprises:
The order receiving element is used to receive the timing adjustment order that said base station issues, and wherein, said timing adjustment order carries the synchronous primary quantity that said auxilliary carrier wave is regularly organized; Wherein, said synchronous primary quantity is the time-delay when detecting upward signal that the auxilliary carrier wave at said terminal regularly organizes and occurring of said base station, confirms according to the clock of said upward signal and said inside of base station;
Second adjustment amount is confirmed the unit; Be used for confirming the downstream signal timing value, and confirm the uplink synchronous adjustment amount that said auxilliary carrier wave is regularly organized according to said downstream signal timing value and said uplink synchronous primary quantity according to the said timing adjustment order that said order receiving element receives.
16. device according to claim 10 is characterized in that, said uplink synchronous adjusting module comprises:
The reference carrier judging unit is used for judging that said auxilliary carrier wave is regularly organized whether has reference carrier;
The time adjustment unit is used in the judged result of said reference carrier judging unit when being, adjusts the upward signal transmitting time of the reference carrier of said auxilliary carrier wave in regularly organizing according to said uplink synchronous adjustment amount; Activation carrier wave during said auxilliary carrier wave is regularly organized except that said reference carrier is adjusted the upward signal transmitting time of said activation carrier wave according to the upward signal transmitting time of said reference carrier;
The carrier wave adjustment unit is used in the judgement structure of said reference carrier judging unit for not the time, adjusts the activation carrier wave of said auxilliary carrier wave in regularly organizing according to said uplink synchronous adjustment amount, and with said activation carrier wave carrier wave as a reference.
17., it is characterized in that said device also comprises according to each described device of claim 10-16:
Deexcitation order receiver module is used to receive the deexcitation order of the auxilliary carrier wave that the base station issues;
Auxilliary carrier wave removing module is used for confirming corresponding auxilliary carrier wave based on the said deexcitation order that said deexcitation order receiver module receives, the auxilliary carrier wave of the said correspondence of deletion from the auxilliary carrier wave at the auxilliary carrier wave place of said correspondence is regularly organized;
Auxilliary carrier wave is regularly organized removing module, is used for when the auxilliary carrier wave that the auxilliary carrier wave when said correspondence belongs to is regularly organized the auxilliary carrier wave that does not activate, and deletes the auxilliary carrier wave at the auxilliary carrier wave place of said correspondence and regularly organizes, and notify said base station.
18. device according to claim 17 is characterized in that, said device also comprises with one of lower module:
The first reference carrier determination module; Be used for when auxilliary carrier wave that said auxilliary carrier wave is regularly organized the said correspondence of removing module deletion is reference carrier, from the auxilliary carrier wave at the auxilliary carrier wave place of said correspondence is regularly organized, select one to activate carrier wave at random as new reference carrier;
The second reference carrier determination module; Be used for when auxilliary carrier wave that said auxilliary carrier wave is regularly organized the said correspondence of removing module deletion is reference carrier, from the auxilliary carrier wave at the auxilliary carrier wave place of said correspondence is regularly organized, select an activation carrier wave with said reference carrier clocking error minimum as new reference carrier.
CN201210072668.8A 2012-03-19 2012-03-19 The uplink synchronisation method and device of multicarrier system Expired - Fee Related CN102595590B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201210072668.8A CN102595590B (en) 2012-03-19 2012-03-19 The uplink synchronisation method and device of multicarrier system
PCT/CN2012/075506 WO2013139074A1 (en) 2012-03-19 2012-05-15 Uplink synchronization method and device of multi-carrier system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210072668.8A CN102595590B (en) 2012-03-19 2012-03-19 The uplink synchronisation method and device of multicarrier system

Publications (2)

Publication Number Publication Date
CN102595590A true CN102595590A (en) 2012-07-18
CN102595590B CN102595590B (en) 2019-02-12

Family

ID=46483674

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210072668.8A Expired - Fee Related CN102595590B (en) 2012-03-19 2012-03-19 The uplink synchronisation method and device of multicarrier system

Country Status (2)

Country Link
CN (1) CN102595590B (en)
WO (1) WO2013139074A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015018095A1 (en) * 2013-08-09 2015-02-12 华为技术有限公司 Timing adjustment method and device
WO2017143923A1 (en) * 2016-02-25 2017-08-31 大唐移动通信设备有限公司 Method and device for realizing synchronization
CN110493880A (en) * 2019-08-30 2019-11-22 成都天奥集团有限公司 The multi-user's uplink scheduling method waited under wide covering scene based on terminal side
WO2023231773A1 (en) * 2022-06-01 2023-12-07 中国电信股份有限公司 Uplink signal sending method, terminal, and storage medium

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101646234A (en) * 2009-09-01 2010-02-10 中兴通讯股份有限公司 Obtaining method of timing lead
CN102014477A (en) * 2009-10-30 2011-04-13 大唐移动通信设备有限公司 Method, apparatus and system for uplink synchronization
CN102158948A (en) * 2011-02-16 2011-08-17 普天信息技术研究院有限公司 Method for obtaining up time advance in carrier aggregation
WO2011121173A1 (en) * 2010-04-01 2011-10-06 Nokia Corporation Multiple timing advance and carrier aggregation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101646234A (en) * 2009-09-01 2010-02-10 中兴通讯股份有限公司 Obtaining method of timing lead
CN102014477A (en) * 2009-10-30 2011-04-13 大唐移动通信设备有限公司 Method, apparatus and system for uplink synchronization
WO2011121173A1 (en) * 2010-04-01 2011-10-06 Nokia Corporation Multiple timing advance and carrier aggregation
CN102158948A (en) * 2011-02-16 2011-08-17 普天信息技术研究院有限公司 Method for obtaining up time advance in carrier aggregation

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015018095A1 (en) * 2013-08-09 2015-02-12 华为技术有限公司 Timing adjustment method and device
US9832744B2 (en) 2013-08-09 2017-11-28 Huawei Technologies Co., Ltd. Timing value adjustment method and apparatus
WO2017143923A1 (en) * 2016-02-25 2017-08-31 大唐移动通信设备有限公司 Method and device for realizing synchronization
US10917864B2 (en) 2016-02-25 2021-02-09 Datang Mobile Commmunications Equipment Co., Ltd. Method and device for realizing synchronization
CN110493880A (en) * 2019-08-30 2019-11-22 成都天奥集团有限公司 The multi-user's uplink scheduling method waited under wide covering scene based on terminal side
WO2023231773A1 (en) * 2022-06-01 2023-12-07 中国电信股份有限公司 Uplink signal sending method, terminal, and storage medium

Also Published As

Publication number Publication date
WO2013139074A1 (en) 2013-09-26
CN102595590B (en) 2019-02-12

Similar Documents

Publication Publication Date Title
RU2721471C1 (en) Random access method for operation with a plurality of numerical indicators
US10820288B2 (en) Synchronization method, user equipment, and base station
US9072090B2 (en) Method and apparatus for managing a wireless network access point beacon
CN112468279B (en) Method and device for determining resources
US10568133B2 (en) Data sending method, base station, and terminal device
CN113303005B (en) Remote interference suppression resource allocation
JP2020511088A (en) Signal transmission method, terminal device, and network device
KR20200018090A (en) Method and apparatus for transmitting and receiving sidelink synchronization signal in wireless communication system
CN102595590A (en) Uplink synchronization method and device for multicarrier system
CN109792642A (en) The control of the transmission of mobility reference signal
US10951263B2 (en) Wireless system and device communication management
CN102668654B (en) Method and apparatus for determining timing advance quantity for user terminal
CN103313417A (en) Resource scheduling method, device and system
CN104685818A (en) Component carrier (de)activation in communication systems using carrier aggregation
CN113630861B (en) Method and device for processing synchronous signal block, communication equipment and readable storage medium
CN115065987A (en) Idle channel monitoring method, device and equipment
CN109936873B (en) Method and device for configuring timing advance
JP2008228200A (en) Communication apparatus and access control method
CN116828517A (en) Transmitter switching method, device and non-volatile computer readable storage medium

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190212

Termination date: 20210319

CF01 Termination of patent right due to non-payment of annual fee