CN101753202A - Up synchronous method and terminal. - Google Patents
Up synchronous method and terminal. Download PDFInfo
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- CN101753202A CN101753202A CN201010000224A CN201010000224A CN101753202A CN 101753202 A CN101753202 A CN 101753202A CN 201010000224 A CN201010000224 A CN 201010000224A CN 201010000224 A CN201010000224 A CN 201010000224A CN 101753202 A CN101753202 A CN 101753202A
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Abstract
The present invention discloses an up synchronous method and a terminal. The up synchronous method comprises the following steps: when the terminal is in a wireless source controlling and connecting state, the up synchronization is gained by the terminal according to the current of referring carriers and the offset of the time initial leads between newly used carriers and referring carriers. The present invention shortens the time of the newly used carriers, and improves the performance of users' surfaces.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of uplink synchronisation method and terminal.
Background technology
Fig. 1 is the schematic diagram according to the wireless frame structure of correlation technique, as shown in Figure 1, at Long Term Evolution (Long Term Evolution, abbreviate LTE as) in the frame structure of system wireless interface, a radio frames duration is at 10ms (millisecond), each radio frames is made up of 10 subframes, that is, the length of each subframe is 1ms.In the LTE system transmission of uplink and downlink generally with 1ms as TTI (transmission time interval), other insert at random leadingly can occupy maximum 3 subframes.
Fig. 2 is the schematic diagram according to the principle of the Timing Advance of correlation technique, as shown in Figure 2, because wireless signal is at the wave point propagation delay, the system time that causes base station side, there is certain deviation at the edge of radio frames in the position of time domain in the edge of radio frames in other words in the position of time domain and the system time of end side in other words.End side always to delay certain length, the degree of delaying depends on the relative position of terminal and base station.When terminal need be when certain subframe begins, during such as 4 beginnings of subframe among Fig. 2, send the signal of a subframe, terminal must know that upward signal arrives the time delay that base station 4 work song frames begin, because the base station always begins to intercept upward signal from the 4 work song frames of this locality, and carry out follow-up processing.Like this, drop on exactly for the signal that allows terminal send in the subframe of corresponding base station, terminal need shift to an earlier date the regular hour and send signal.This time quantum that shifts to an earlier date is exactly the Timing Advance of saying herein (Time Advance abbreviates TA as).
Fig. 3 is the flow chart of keeping according to the acquisition of the uplink synchronous of correlation technique and TA, as shown in Figure 3, at general Frequency Division Duplexing (FDD) mode (Frequency Division Duplex, abbreviate FDD as)/time division duplex (Time Division Duplex, abbreviate TDD as) in the system, when terminal does not also obtain uplink synchronous, generally be to obtain initial Timing Advance, thereby obtain initial uplink synchronous by the mode that inserts at random.The upward signal that sends in sense terminals of base station then on the basis such as the reference signal of LTE system, detects the variation of terminal on Timing Advance, and this variable quantity is notified to terminal.Terminal is adjusted the Timing Advance of oneself in view of the above, thus the uplink synchronous between maintenance and the base station.Specifically comprise following step:
Step S302, terminal sends random access guiding message to the base station, and this random access guiding message is used for request and obtains TA.
The random access guiding message that step S304, base station receiving terminal send, and return accidental access response message to this terminal, wherein, carry the TA of this terminal request in this accidental access response message.
Step S306, this terminal sends reference signal to the base station.
Step S308, the base station receives the reference signal that this terminal sends, and according to reference signal estimation TA deviant.
Step S310, the base station sends TA to this terminal and adjusts signaling.
Above-mentioned access function at random comprises following step: random access resource is selected; Random access guiding sends; The reception of accidental access response message; Send the 3rd message according to uplink assignment resource in the response message (Up Link GRANT abbreviates UL GRANT as) and Timing Advance; The last collision problem that may exist according to the downstream message solution that receives is because other-end may use the resource of identical random access resource or the 3rd message.If but random access resource is by network allocation, so at the beginning because the exclusiveness of resource, so terminal when receiving accidental access response message, random access procedure finishes.Terminal only just can adopt the initial TA that obtains in random access procedure after inserting successfully at random.
The scene that terminal is initiated to insert at random comprises: terminal initial access network suggestion RRC connects; The reconstruction that RRC connects; Up or descending data arrive and trigger; The implementation of switching; Uplink scheduling request failure etc.Wherein, when switching and downlink data arrived, the resource of Jie Ruing might be a network-assigned at random.Terminal oneself is selected random access resource in other cases, that is to say, inserts the random access procedure that is based on conflict at random, need finish the exchange of 4 message and just can finish random access procedure.
Further enlarge the up-downgoing peak rate in order to satisfy, shorten chain of command (ControlPlane, abbreviate CP as) and user's face (User Plane, abbreviate UP as) the industry requirement of time delay, the LTE technology has been introduced the function of carrier set, make terminal the time with network communication, can be simultaneously at the enterprising row communication of different carrier waves.These carrier waves can be made up of different frequency ranges, also can be made up of continuous in the similar frequency bands or discontinuous carrier wave.The carrier wave of uplink and downlink may be symmetrical, also may be asymmetric.Terminal can't insert on a plurality of carrier waves, simultaneously simultaneously because terminal can only reside on the sub-district (carrier wave) when idle condition.When terminal enters into Radio Resource control (Radio ResourceControl abbreviates RRC as) connection status, can dispatch a plurality of carrier waves simultaneously at network.
For terminal, may be different at the Timing Advance of different carrier.Fig. 4 is the schematic diagram that communicates according to the terminal of correlation technique and different carrier wave, and as shown in Figure 4, terminal is by wave point and carrier wave 1 direct communication, but needs carry out communication by a repeater (signal amplifier) and carrier wave 2.The function of Repeater is that the signal that receives is carried out processing and amplifying, and carries out the transmission of equidirectional.But sort signal is handled and can be introduced extra time delay.According to the principle of above-mentioned uplink synchronous, for terminal, just mean the difference of Timing Advance.
Carry out the processing of uplink synchronous if still adopt flow process shown in Figure 3, then each base station need be enabled when one Timing Advance is different from the carrier wave of work at present carrier wave or Timing Advance carrier wave set for terminal, all needs triggering terminal to insert at random and finishes initial uplink synchronous.And random access procedure can be introduced extra time delay.This time delay speed that carrier wave is enabled in the base station that slowed down, the negative influence that causes for the data communication of wave point.
Summary of the invention
Main purpose of the present invention is to provide a kind of uplink synchronisation method and terminal, when being different from the carrier wave of work at present carrier wave or Timing Advance carrier wave set to solve the Timing Advance of enabling relative terminal in the base station at least, need triggering terminal to insert at random to finish initial uplink synchronous to introduce extra time delay, and the speed issue of carrier wave is enabled in the base station that causes slowing down.
According to an aspect of the present invention, a kind of uplink synchronisation method is provided, comprise: when end during at Radio Resource control connection state, terminal obtains uplink synchronous according to reference carrier current Timing Advance and the Timing Advance deviation between carrier wave of newly enabling and the reference carrier.
Preferably, before the terminal Timing Advance and the Timing Advance deviation carrier wave newly enabled and reference carrier between acquisition uplink synchronous current according to reference carrier, said method also comprises: terminal receives from the carrier wave of newly enabling of base station and the Timing Advance deviation between the reference carrier.
Preferably, obtain from the base station before the carrier wave of newly enabling and the Timing Advance deviation between the reference carrier in terminal, said method also comprises: the base station is according to the Timing Advance deviation between predetermined way estimation different carrier or the Timing Advance carrier wave set, wherein, the Timing Advance carrier wave set comprises: the carrier wave that Timing Advance is identical, Timing Advance deviation comprise the carrier wave newly enabled and the Timing Advance deviation between the reference carrier; Carrier wave that the base station is newly enabled by predetermined signaling notice terminal and the Timing Advance deviation between the reference carrier.
Preferably, the minimum particle size of the Timing Advance deviation between different carrier or the Timing Advance carrier wave set is the least unit that Timing Advance is adjusted.
Preferably, predetermined signaling comprises one of following: radio resource control layer signaling, media access control layer signaling, physical layer signaling.
Preferably, terminal comprises according to reference carrier current Timing Advance and the acquisition of the Timing Advance deviation between carrier wave of newly enabling and reference carrier uplink synchronous: Timing Advance and Timing Advance deviation that terminal is current with reference carrier are carried out addition, the Timing Advance of the carrier wave that acquisition is newly enabled; Terminal is carried out the transmission of upward signal according to the Timing Advance of the carrier wave of newly enabling.
Preferably, after the Timing Advance of the carrier wave that the terminal basis is newly enabled carries out the transmission of upward signal, said method also comprises: if terminal is failed according to the Timing Advance transmission upward signal of the carrier wave of newly enabling, then terminal is initiated random access procedure and is obtained new initial time lead.
Preferably, after the Timing Advance of the carrier wave that the terminal basis is newly enabled carries out the transmission of upward signal, said method also comprises: if terminal is failed according to the Timing Advance transmission upward signal of the carrier wave of newly enabling, then the base station triggers terminal is initiated random access procedure and is obtained new initial time lead.
Preferably, after the Timing Advance of the carrier wave that the terminal basis is newly enabled carries out the transmission of upward signal, said method also comprises: if terminal is successful according to the Timing Advance transmission upward signal of the carrier wave of newly enabling, then terminal utilizes the Timing Advance of base station transmission to upgrade the Timing Advance that signaling is safeguarded the carrier wave of newly enabling.
Preferably, when terminal is in Radio Resource control connection state, intended carriers is activated for the first time being configured the back, and the intended carriers Timing Advance relevant with all carrier waves that using is not simultaneously, and terminal is obtained initial Timing Advance by the mode of access at random.
Preferably, reference carrier is a carrier wave of working that is in the uplink synchronous state.
According to another aspect of the present invention, a kind of terminal is provided, comprise: uplink synchronous is recovered module, be used in end during at Radio Resource control connection state, Timing Advance and the Timing Advance deviation carrier wave newly enabled and reference carrier between current according to reference carrier obtain uplink synchronous.
Preferably, above-mentioned terminal also comprises: receiver module is used to receive from the carrier wave of newly enabling of base station and the Timing Advance deviation between the reference carrier.
Preferably, uplink synchronous is recovered module and comprised: calculating sub module is used for Timing Advance that reference carrier is current and Timing Advance deviation and carries out addition, the Timing Advance of the carrier wave that acquisition is newly enabled; Send submodule, be used for carrying out the transmission of upward signal according to the Timing Advance of the carrier wave of newly enabling.
Preferably, above-mentioned terminal also comprises: the uplink synchronous module is used to initiate random access procedure and obtains the initial time lead.
Preferably, above-mentioned terminal also comprises: the uplink synchronous maintenance module, be used for sending under the Timing Advance transmission upward signal case of successful of submodule according to the carrier wave of newly enabling, the Timing Advance that utilizes the base station to send upgrades the Timing Advance that signaling is safeguarded the carrier wave of newly enabling.
By the present invention, when end during at Radio Resource control connection state, terminal obtains uplink synchronous according to reference carrier current Timing Advance and the Timing Advance deviation between carrier wave of newly enabling and the reference carrier, having solved each base station need enable when one Timing Advance is different from the carrier wave of work at present carrier wave or Timing Advance carrier wave set for terminal, triggering terminal inserts at random to be finished initial uplink synchronous and can introduce extra time delay, the problem of the speed of carrier wave is enabled in the base station that caused slowing down, and then shortened the time of enabling new carrier wave, improved the performance of user's face.
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 the schematic diagram according to the wireless frame structure of correlation technique;
Fig. 2 is the schematic diagram according to the principle of the Timing Advance of correlation technique;
Fig. 3 is the flow chart of keeping according to the acquisition of the uplink synchronous of correlation technique and TA;
Fig. 4 is the schematic diagram that communicates according to the terminal of correlation technique and different carrier wave;
Fig. 5 is the schematic diagram according to the internal structure of the terminal practical application of the embodiment of the invention;
Fig. 6 is the schematic diagram according to the maintenance of the TA deviation of the embodiment of the invention one;
Fig. 7 is first schematic diagram according to TA deviation between the different carrier of the embodiment of the invention one;
Fig. 8 is second schematic diagram according to TA deviation between the different carrier of the embodiment of the invention one;
Fig. 9 is the schematic diagram according to the use of the TA deviation of the embodiment of the invention two;
Figure 10 is the schematic diagram according to the fallback mechanism of the embodiment of the invention three;
Figure 11 is the flow chart according to the fallback mechanism of the embodiment of the invention three.
Embodiment
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Method embodiment
According to embodiments of the invention, a kind of uplink synchronisation method is provided, this method comprises: when end during in the RRC connection status, terminal obtains uplink synchronous according to reference carrier current TA and the TA deviation between carrier wave of newly enabling and the reference carrier.
Wherein, reference carrier is a carrier wave of working that is in the uplink synchronous state, and particularly, reference carrier is to select from the carrier wave that is using, and current state is the carrier wave that is in the uplink synchronous state, and its TA value is safeguarded normally.
Particularly, TA that terminal is current with reference carrier and the carrier wave of newly enabling carry out addition with respect to the TA deviation between the reference carrier, the TA of the carrier wave that acquisition is newly enabled; Terminal is carried out the transmission of upward signal according to the TA of the carrier wave of newly enabling.
Before this, TA deviation between different carrier or the TA carrier wave set can be estimated according to predetermined way in the base station, and wherein, the TA carrier wave set comprises: the relevant identical carrier wave of TA, TA deviation comprise the carrier wave newly enabled and the TA deviation between the reference carrier; TA deviation between relevant different carrier of terminal or the TA carrier wave set (comprising the TA deviation between carrier wave of newly enabling and the reference carrier) can be notified by predetermined signaling in the base station.Then, terminal receives from the carrier wave of newly enabling of base station and the TA deviation between the reference carrier.
Particularly, the minimum particle size of the TA deviation between different carrier or the TA carrier wave set is the least unit that Timing Advance is adjusted.
Wherein, predetermined signaling comprises one of following: rrc layer signaling, medium access control (Media Access Control abbreviates MAC as) layer signaling, physical layer signaling.
After this, if terminal sends the upward signal failure according to the TA of the carrier wave of newly enabling, then terminal finally can be initiated random access procedure according to predetermined rule and obtain new initial TA, and perhaps, the base station triggers terminal is initiated random access procedure and obtained new initial time lead; If terminal sends the upward signal success according to the TA of the carrier wave of newly enabling, then begin normal TA maintenance process, that is, the TA that terminal utilizes the base station to send upgrades the TA that signaling is safeguarded the carrier wave of newly enabling.
Need to prove that when terminal is in the RRC connection status, intended carriers is activated being configured the back for the first time, and the intended carriers TA relevant with all carrier waves that using is not simultaneously, terminal always needs to obtain initial TA by the mode of access at random.
Need to prove, the TA value of the carrier wave of describing in the foregoing description of newly enabling is different with the TA value of the carrier wave that is using, that is to say, if the TA value of new carrier wave of enabling and the carrier wave that is using is identical, does not then need the uplink synchronisation method of the extra embodiment of the invention and obtain initial TA by inserting at random.
By this embodiment, utilize to have fixedly TA deviation between different carrier or the TA carrier wave set, make the time of enabling new carrier wave shorten the time of an about random access procedure, this has very large raising for the performance that user's face is provided.
Device embodiment
According to embodiments of the invention, provide a kind of terminal.This terminal can be used to realize above-mentioned uplink synchronisation method, this terminal comprises: uplink synchronous is recovered module, be used in end during in the RRC connection status, TA and the TA deviation carrier wave newly enabled and reference carrier between current according to reference carrier obtain uplink synchronous.
Wherein, reference carrier is a carrier wave of working that is in the uplink synchronous state, and particularly, reference carrier is to select from the carrier wave that is using, and current state is the carrier wave that is in the uplink synchronous state, and its TA value is safeguarded normally.
Wherein, above-mentioned uplink synchronous is recovered module and is comprised: calculating sub module and transmission submodule, calculating sub module is used for the TA that reference carrier is current and the carrier wave newly enabled carries out addition with respect to the TA deviation between the reference carrier, obtains the TA of the carrier wave newly enabled; Send submodule, be connected to calculating sub module, the TA that is used for the carrier wave of newly enabling that calculating obtains according to calculating sub module carries out the transmission of upward signal.
Fig. 5 is the schematic diagram according to the internal structure of the terminal practical application of the embodiment of the invention, as shown in Figure 5, this terminal comprises uplink synchronous module 2, uplink synchronous maintenance module 4 and uplink synchronous recovery module 6, and receiver module 8 is described said structure below.
Uplink synchronous is recovered module 6, be responsible for when enabling when possessing the new carrier wave of different TA with respect to the carrier wave that is using, if there is reference carrier to use, then terminal utilizes the TA value of reference carrier and new carrier wave and the TA deviation between the reference carrier to obtain uplink synchronous.
Uplink synchronous module 2, it is synchronous to be used for obtaining initial uplink by the mode that inserts at random.Particularly, sending under the situation of submodule according to the TA transmission upward signal failure of the carrier wave of newly enabling, initiate random access procedure according to predetermined rule and obtain new initial TA, need to prove, the operation of this module can be triggered by terminal, also can be carried out by base station triggers; When terminal is in Radio Resource control connection state, intended carriers is activated being configured the back for the first time, and the intended carriers TA relevant with all carrier waves that using is not simultaneously, obtains initial TA by the mode of access at random.
Uplink synchronous maintenance module 4 is used for utilizing uplink synchronous to recover to receive base station TA and to safeguard signaling after module or uplink synchronous module obtain initial TA in terminal, and maintaining uplink is synchronous.Preferably, can start a timer in the uplink synchronous maintenance module, when obtaining initial TA or obtain the new TA side-play amount of base station, timer is restarted at every turn.If timer expiry, then terminal needs to obtain new initial TA by uplink synchronous module or up recovery module again.Particularly, sending under the TA transmission upward signal case of successful of submodule according to the carrier wave of newly enabling, begin normal TA maintenance process, that is, the TA that utilizes the base station to send upgrades the TA that signaling is safeguarded the carrier wave of newly enabling.
Below in conjunction with specific embodiment implementation procedure of the present invention is described.
Embodiment one
Fig. 6 is the schematic diagram according to the maintenance of the TA deviation of the embodiment of the invention one, as shown in Figure 6, the maintenance work of the TA deviation between the different carrier is responsible in the base station, and notifies the information of TA deviation between relevant different carrier of terminal or the different TA carrier wave set by downlink signaling.
Wherein, the mode of downlink signaling can adopt RRC signaling or MAC control signaling or physical layer control signaling.
The content of above-mentioned signaling can comprise: TA deviation and two or two group carrier waves relevant with this deviation.As shown in Figure 7 and Figure 8, this TA deviation is not both on the occasion of with negative value according to the carrier wave of institute's reference, is described in detail below.
Fig. 7 is first schematic diagram according to TA deviation between the different carrier of the embodiment of the invention one, as shown in Figure 7, carrier wave 2 with respect to the TA deviation of carrier wave 1 be on the occasion of, on the contrary, carrier wave 1 is negative values with respect to the TA deviation of carrier wave 2.
Fig. 8 is second schematic diagram according to TA deviation between the different carrier of the embodiment of the invention one, as shown in Figure 8, TA for carrier wave 1 and carrier wave 2 changes front and back, carrier wave 2 is identical with respect to carrier wave 1 positive TA deviation, that is to say, for certain terminal, the TA deviation between the different carrier waves is constant substantially.This be because be similar to mention in the background technology because the time delay of the signal processing that causes of repeater is basicly stable, change too fast excessive else if, then the process kept of the TA between base station and the terminal can't satisfy the needs that TA keeps, and perhaps can introduce the signaling that very frequent TA keeps.This all is unacceptable for wireless telecommunication system.
Such as, certain terminal has been used the carrier wave of 3 different TA altogether, is respectively carrier wave A, B and C.Suppose the TA minimum relevant with carrier wave A, carrier wave B secondly, and carrier wave C maximum.Terminal in the signaling design, needs only so and notifies carrier wave B and carrier wave C terminal just passable with respect to the TA deviation of carrier wave A, because can obtain the situation of TA deviation between each carrier wave in view of the above.Such as, carrier wave B and carrier wave C are respectively 6 TA least unit and 10 TA least unit with respect to the TA deviation of carrier wave A, the TA deviation between the carrier wave has relation as shown in table 1 below so:
Table 1
| Reference carrier | Relative carrier wave | TA deviation (TA least unit) |
| ??A | ??B | ??6 |
| ??A | ??C | ??10 |
| ??B | ??A | ??-6 |
| ??B | ??C | ??4 |
| ??C | ??A | ??-10 |
| Reference carrier | Relative carrier wave | TA deviation (TA least unit) |
| ??C | ??B | ??-4 |
Wherein, the TA least unit is the minimum step that allows to adjust TA.If the TA minimum of certain carrier wave of newly enabling, signaling also can adopt the TA deviation of negative value, avoids retransmitting old data.Enabled carrier wave D for this terminal such as, base station, and the TA deviation with respect to carrier wave A of this carrier wave is-3 least unit, as long as the base station is just passable this new TA deviation notice terminal so.Terminal regenerates a new form according to new information.
When terminal enters the RRC connection status, perhaps enter after the RRC connection status, a such form perhaps in the process that TA keeps, is safeguarded in the base station when enabling certain carrier wave or TA carrier wave set for the first time.Then as required, be notified to terminal by above-mentioned downlink signaling.
Embodiment two
With reference to figure 4, suppose that terminal can utilize two carrier waves that TA is different, carrier wave 1 and carrier wave 2.And current state is that carrier wave 1 is using, and carrier wave 1 is in the uplink synchronous state.Carrier wave 2 once was used after terminal enters the RRC connection status, but current not work, and base station and terminal know that all carrier wave 2 is 4 least unit with respect to the TA deviation of carrier wave 1.
Fig. 9 is the schematic diagram according to the use of the TA deviation of the embodiment of the invention two, as shown in Figure 9, there is new upstream data to arrive sometime, can't satisfies service quality (Quality of Service at the carrier wave 1 that uses, abbreviate QoS as) requirement, after this comprise following step:
Step S902, terminal provides " buffer status " to give the base station.
Step S904, carrier wave 2 is enabled in the base station, and beginning scheduling carrier wave 2 sends upstream data.Wherein, the process of scheduling carrier wave 2 in fact also has a plurality of steps to be formed, and for example, the notice terminal is enabled this carrier wave earlier, is passing through the direct dispatching uplink resource of physical layer signaling then.
Step S906, terminal sends upstream data by carrier wave 2 to the base station.
Embodiment three
Figure 10 is the schematic diagram according to the fallback mechanism of the embodiment of the invention three, as shown in figure 10, supposes that terminal is utilized reference carrier and the TA deviation of newly enabling between the carrier wave sends upward signal.If according to predetermined rule judgment, upward signal sends failure, and then the recovery of the uplink synchronous in terminal module 6 will be notified to uplink synchronous module 2 to this failed message.Send random access procedure between this message trigger uplink synchronous module.Above-mentioned predetermined rule can be the number of times that transmission is failed such as terminal etc.
Perhaps with reference to Figure 11, Figure 11 is the flow chart according to the fallback mechanism of the embodiment of the invention three, as shown in figure 11, comprises following step:
Step S112, terminal provides " buffer status " to give the base station.
Step S114, carrier wave 2 is enabled in the base station, and beginning scheduling carrier wave 2 sends upstream data.Wherein, the process of scheduling carrier wave 2 in fact also has a plurality of steps to be formed, and for example, the notice terminal is enabled this carrier wave earlier, is passing through the direct dispatching uplink resource of physical layer signaling then.
Step S116, terminal sends the upstream data failure by carrier wave 2 to the base station, and scheduling carrier wave 2 failures are found in the base station.
Step S118, the base station can directly require terminal to initiate random access procedure on carrier wave 2, that is and, random access procedure is initiated by downlink signaling (triggering random accessing message) triggering terminal in the base station.
Step S110, terminal is initiated random access procedure to the base station by carrier wave 2.
Need to prove the fallback mechanism that said process just designs in order to prevent protocol failure.
Pass through the above embodiment of the present invention, when end during at Radio Resource control connection state, terminal obtains uplink synchronous according to reference carrier current Timing Advance and the Timing Advance deviation between carrier wave of newly enabling and the reference carrier, having solved each base station need enable when one Timing Advance is different from the carrier wave of work at present carrier wave or Timing Advance carrier wave set for terminal, triggering terminal inserts at random to be finished initial uplink synchronous and can introduce extra time delay, the problem of the speed of carrier wave is enabled in the base station that caused slowing down, and then shortened the time of enabling new carrier wave, improved the performance of user's face.
Obviously, those skilled in the art should be understood 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, they can be stored in the storage device and carry out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, 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 the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (16)
1. a uplink synchronisation method is characterized in that, comprising:
When end during at Radio Resource control connection state, described terminal obtains uplink synchronous according to reference carrier current Timing Advance and the Timing Advance deviation between carrier wave of newly enabling and the described reference carrier.
2. method according to claim 1 is characterized in that, before described the terminal Timing Advance and the Timing Advance deviation carrier wave newly enabled and described reference carrier between acquisition uplink synchronous current according to reference carrier, described method also comprises:
Described terminal receives from the described carrier wave of newly enabling of base station and the Timing Advance deviation between the described reference carrier.
3. method according to claim 2 is characterized in that, described terminal was obtained Timing Advance deviation between described carrier wave of newly enabling and the described reference carrier from the base station before, described method also comprised:
Described base station is according to the Timing Advance deviation between predetermined way estimation different carrier or the Timing Advance carrier wave set, wherein, described Timing Advance carrier wave set comprises: the carrier wave that Timing Advance is identical, and described Timing Advance deviation comprises the Timing Advance deviation between described carrier wave of newly enabling and the described reference carrier;
Timing Advance deviation between described carrier wave of newly enabling of described terminal and the described reference carrier is notified by predetermined signaling in described base station.
4. method according to claim 3 is characterized in that, the minimum particle size of the Timing Advance deviation between described different carrier or the Timing Advance carrier wave set is the least unit that Timing Advance is adjusted.
5. method according to claim 3 is characterized in that, it is one of following that described predetermined signaling comprises:
Radio resource control layer signaling, media access control layer signaling, physical layer signaling.
6. method according to claim 1 is characterized in that, described terminal comprises according to reference carrier current Timing Advance and the acquisition of the Timing Advance deviation between carrier wave of newly enabling and described reference carrier uplink synchronous:
Timing Advance that described terminal is current with described reference carrier and described Timing Advance deviation are carried out addition, obtain the Timing Advance of the described carrier wave of newly enabling;
Described terminal is carried out the transmission of upward signal according to the Timing Advance of the described carrier wave of newly enabling.
7. method according to claim 6 is characterized in that, after described terminal was carried out the transmission of upward signal according to the Timing Advance of the described carrier wave of newly enabling, described method also comprised:
If described terminal sends the upward signal failure according to the Timing Advance of the described carrier wave of newly enabling, then described terminal is initiated random access procedure and is obtained new initial time lead.
8. method according to claim 6 is characterized in that, after described terminal was carried out the transmission of upward signal according to the Timing Advance of the described carrier wave of newly enabling, described method also comprised:
If described terminal sends the upward signal failure according to the Timing Advance of the described carrier wave of newly enabling, the described terminal of then described base station triggers is initiated random access procedure and is obtained new initial time lead.
9. method according to claim 6 is characterized in that, after described terminal was carried out the transmission of upward signal according to the Timing Advance of the described carrier wave of newly enabling, described method also comprised:
If described terminal sends the upward signal success according to the Timing Advance of the described carrier wave of newly enabling, the Timing Advance that then described terminal utilizes the base station to send upgrades the Timing Advance that signaling is safeguarded the described carrier wave of newly enabling.
10. according to each described method in the claim 1 to 9, it is characterized in that, when described terminal is in Radio Resource control connection state, intended carriers is activated after being configured for the first time, and the described intended carriers Timing Advance relevant with all carrier waves that using is not simultaneously, and described terminal is obtained initial Timing Advance by the mode that inserts at random.
11., it is characterized in that described reference carrier is a carrier wave of working that is in the uplink synchronous state according to each described method in the claim 1 to 9.
12. a terminal is characterized in that, comprising:
Uplink synchronous is recovered module, is used in end during at Radio Resource control connection state Timing Advance and the Timing Advance deviation carrier wave newly enabled and described reference carrier between the acquisition uplink synchronous current according to reference carrier.
13. terminal according to claim 12 is characterized in that, also comprises:
Receiver module is used to receive from the described carrier wave of newly enabling of base station and the Timing Advance deviation between the described reference carrier.
14. terminal according to claim 12 is characterized in that, described uplink synchronous is recovered module and is comprised:
Calculating sub module is used for the Timing Advance that described reference carrier is current and described Timing Advance deviation is carried out addition, obtains the Timing Advance of the described carrier wave of newly enabling;
Send submodule, be used for carrying out the transmission of upward signal according to the Timing Advance of the described carrier wave of newly enabling.
15. terminal according to claim 14 is characterized in that, also comprises:
The uplink synchronous module is used to initiate random access procedure and obtains the initial time lead.
16. terminal according to claim 14 is characterized in that, also comprises:
The uplink synchronous maintenance module, be used for sending under the upward signal case of successful at the Timing Advance of described transmission submodule according to the described carrier wave of newly enabling, the Timing Advance that utilizes the base station to send upgrades the Timing Advance that signaling is safeguarded the described carrier wave of newly enabling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010000224A CN101753202A (en) | 2010-01-07 | 2010-01-07 | Up synchronous method and terminal. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010000224A CN101753202A (en) | 2010-01-07 | 2010-01-07 | Up synchronous method and terminal. |
Publications (1)
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103079223A (en) * | 2012-12-28 | 2013-05-01 | 北京邮电大学 | Application and test method of base station time synchronization error values |
| CN103167574A (en) * | 2011-12-19 | 2013-06-19 | 华为技术有限公司 | Serving cell timing advance grouping method and grouping device |
| CN103379074A (en) * | 2012-04-24 | 2013-10-30 | 华为技术有限公司 | Method for transmitting signals, user equipment and network side device |
| CN103716872A (en) * | 2012-10-09 | 2014-04-09 | 中兴通讯股份有限公司 | upper link synchronization adjusting method and device in TDD system |
| CN104080159A (en) * | 2013-03-26 | 2014-10-01 | 中兴通讯股份有限公司 | Carrier transmission time setting method and communication system |
| WO2015010602A1 (en) * | 2013-07-23 | 2015-01-29 | 电信科学技术研究院 | Uplink control information transmission method and device |
| CN104519589A (en) * | 2013-09-26 | 2015-04-15 | 中兴通讯股份有限公司 | Random access method and device |
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| CN110062456A (en) * | 2011-07-29 | 2019-07-26 | 日本电气株式会社 | Radio station, wireless terminal and synchro timer control method in wireless communication system |
| WO2020024295A1 (en) * | 2018-08-03 | 2020-02-06 | Nec Corporation | Timing adjustment |
| CN111278101A (en) * | 2019-01-28 | 2020-06-12 | 维沃移动通信有限公司 | Time information processing method, terminal equipment and network side equipment |
| CN113261218A (en) * | 2021-01-13 | 2021-08-13 | 北京小米移动软件有限公司 | Timing adjustment method and device, and storage medium |
| US11129208B2 (en) | 2017-09-27 | 2021-09-21 | Huawei Technologies Co., Ltd. | Paging method and apparatus and communication timing method and apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050124345A1 (en) * | 2003-12-05 | 2005-06-09 | Raiv Laroia | Methods and apparatus for performing handoffs in a multi-carrier wireless communications system |
| US20080084849A1 (en) * | 2006-10-06 | 2008-04-10 | Interdigital Technology Corporation | Autonomous timing advance adjustment during handover |
| CN101212741A (en) * | 2006-12-29 | 2008-07-02 | 大唐移动通信设备有限公司 | Dual-mode terminal switching method, system, and the dual-mode terminal |
| CN101478780A (en) * | 2008-01-04 | 2009-07-08 | 中兴通讯股份有限公司 | Method for random access in cellular communication system |
| CN101582870A (en) * | 2008-05-15 | 2009-11-18 | 中兴通讯股份有限公司 | Method and device for realizing synchronization |
| CN101611570A (en) * | 2005-05-17 | 2009-12-23 | 高通股份有限公司 | The method and apparatus that is used for wireless multi-carrier communications |
-
2010
- 2010-01-07 CN CN201010000224A patent/CN101753202A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050124345A1 (en) * | 2003-12-05 | 2005-06-09 | Raiv Laroia | Methods and apparatus for performing handoffs in a multi-carrier wireless communications system |
| CN101611570A (en) * | 2005-05-17 | 2009-12-23 | 高通股份有限公司 | The method and apparatus that is used for wireless multi-carrier communications |
| US20080084849A1 (en) * | 2006-10-06 | 2008-04-10 | Interdigital Technology Corporation | Autonomous timing advance adjustment during handover |
| CN101212741A (en) * | 2006-12-29 | 2008-07-02 | 大唐移动通信设备有限公司 | Dual-mode terminal switching method, system, and the dual-mode terminal |
| CN101478780A (en) * | 2008-01-04 | 2009-07-08 | 中兴通讯股份有限公司 | Method for random access in cellular communication system |
| CN101582870A (en) * | 2008-05-15 | 2009-11-18 | 中兴通讯股份有限公司 | Method and device for realizing synchronization |
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110062456A (en) * | 2011-07-29 | 2019-07-26 | 日本电气株式会社 | Radio station, wireless terminal and synchro timer control method in wireless communication system |
| CN103167574A (en) * | 2011-12-19 | 2013-06-19 | 华为技术有限公司 | Serving cell timing advance grouping method and grouping device |
| US10136367B2 (en) | 2011-12-19 | 2018-11-20 | Huawei Technologies Co., Ltd. | Method and device for determining timing advance group of serving cell |
| CN103167574B (en) * | 2011-12-19 | 2015-11-25 | 华为技术有限公司 | Determine Timing Advance group technology and the equipment of Serving cell |
| CN103379074A (en) * | 2012-04-24 | 2013-10-30 | 华为技术有限公司 | Method for transmitting signals, user equipment and network side device |
| WO2013159701A1 (en) * | 2012-04-24 | 2013-10-31 | 华为技术有限公司 | Signal transmission method, user equipment, network side device |
| CN103379074B (en) * | 2012-04-24 | 2016-09-28 | 华为技术有限公司 | The transmission method of signal, subscriber equipment and network equipment |
| CN103716872A (en) * | 2012-10-09 | 2014-04-09 | 中兴通讯股份有限公司 | upper link synchronization adjusting method and device in TDD system |
| CN103079223B (en) * | 2012-12-28 | 2016-04-13 | 北京邮电大学 | The application of base station time synchronism error amount and method of testing |
| CN103079223A (en) * | 2012-12-28 | 2013-05-01 | 北京邮电大学 | Application and test method of base station time synchronization error values |
| WO2014153928A1 (en) * | 2013-03-26 | 2014-10-02 | 中兴通讯股份有限公司 | Method for setting sending time of carrier, and communication system |
| CN104080159A (en) * | 2013-03-26 | 2014-10-01 | 中兴通讯股份有限公司 | Carrier transmission time setting method and communication system |
| CN104080159B (en) * | 2013-03-26 | 2017-08-11 | 中兴通讯股份有限公司 | Carrier wave sends time setting method and communication system |
| US9942916B2 (en) | 2013-07-23 | 2018-04-10 | China Academy Of Telecommunications Technology | Uplink control information transmission method and device |
| WO2015010602A1 (en) * | 2013-07-23 | 2015-01-29 | 电信科学技术研究院 | Uplink control information transmission method and device |
| CN104519589A (en) * | 2013-09-26 | 2015-04-15 | 中兴通讯股份有限公司 | Random access method and device |
| CN110191515A (en) * | 2014-12-19 | 2019-08-30 | 上海朗帛通信技术有限公司 | A kind of method and apparatus of LAA communication |
| CN105763308A (en) * | 2014-12-19 | 2016-07-13 | 上海朗帛通信技术有限公司 | LAA communication method and apparatus |
| CN105763308B (en) * | 2014-12-19 | 2019-09-06 | 上海朗帛通信技术有限公司 | A kind of method and apparatus of LAA communication |
| CN110191515B (en) * | 2014-12-19 | 2022-06-17 | 上海朗帛通信技术有限公司 | LAA communication method and device |
| US11129208B2 (en) | 2017-09-27 | 2021-09-21 | Huawei Technologies Co., Ltd. | Paging method and apparatus and communication timing method and apparatus |
| WO2020024295A1 (en) * | 2018-08-03 | 2020-02-06 | Nec Corporation | Timing adjustment |
| CN111278101A (en) * | 2019-01-28 | 2020-06-12 | 维沃移动通信有限公司 | Time information processing method, terminal equipment and network side equipment |
| CN113261218A (en) * | 2021-01-13 | 2021-08-13 | 北京小米移动软件有限公司 | Timing adjustment method and device, and storage medium |
| CN113261218B (en) * | 2021-01-13 | 2023-07-25 | 北京小米移动软件有限公司 | Timing adjustment method and device and storage medium |
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