CN107426810A

CN107426810A - The acquisition methods and device of up timing

Info

Publication number: CN107426810A
Application number: CN201610345246.1A
Authority: CN
Inventors: 徐汉青; 赵亚军; 吴昱民
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-05-23
Filing date: 2016-05-23
Publication date: 2017-12-01
Anticipated expiration: 2036-05-23
Also published as: WO2017202267A1; CN107426810B

Abstract

The invention provides a kind of acquisition methods and device of up timing, wherein, this method includes：Before user equipment (UE) switches to Target cell by cell-of-origin, the UE obtains the configuration information of upward signal or up channel, and descending timings of the UE based on first community sends the upward signal or up channel to the Target cell and/or the cell-of-origin；The UE is according to the timing advance TA orders received, the descending timing of second community and/or the cell-of-origin current timing advance value determines the up timing of the Target cell, wherein, the TA orders are that the Target cell is calculated according to the upward signal or up channel.Using above-mentioned technical proposal, solve the problems, such as the up timing for how accurately determining Target cell, in the case where reducing Stochastic accessing and whole handover delay, obtain the up timing of Target cell exactly.

Description

The acquisition methods and device of up timing

Technical field

The present invention relates to the communications field, in particular to a kind of acquisition methods and device of up timing.

Background technology

When user or terminal are in movement, the connection for maintaining seamless high quality is an important goal of cellular system. For example, for the heterogeneous network (Heterogeneous being made up of high power macro cells and low-power small cells Network, referred to as HetNet), keep thering is relatively low handoff failure (Handover Fail, to be referred to as in HetNet networks HOF) long evolving system (Long Term Evolution, referred to as LTE) mobile robustness of probability especially has challenge Property.In fact, these challenges or problem already lead to introduce mobile enhancing characteristic in LTE Rel-12 (Release 12) to answer It is right.Such as, there is provided reduce highspeed user's equipment (User Equipment, referred to as UE) and be connected to probability in small cells Mechanism, the Quick-return from Radio Link Failure (Radio link Failure, referred to as RLF), context obtains after RLF Take, UE to network movement history recording notice.

Enhancing is moved in view of Rel-12 and based on self-organizing network (Self Optimization Network, letter Referred to as SON) mobile robustness optimization (Mobility Robustness Optimization, referred to as MRO) characteristic, can Reaching preferably has the travelling performance of low RLF and HOF probability.However, LTE switchings can all cause in UE data transfers every time It is disconnected.There is the statistics display time that switching causes to interrupt every time to be generally 50ms, sometimes even up to 80-100ms.Break period is Rely on and switch the result based on " first interrupt and operate again (break before make) " methodology in LTE every time.Once receive Switching command, UE stops and the ongoing data interaction in cell-of-origin, next starts acquisition and is connected with the data of Target cell. Latter step in above-mentioned handoff procedure needs UE (Random Access, to be referred to as with Target cell execution Stochastic accessing RA) timing advance of new cell (Timing advance, referred to as TA) is obtained.

If UE need not perform the RA steps with Target cell, the data outage time can be reduced, we call this The mobile enhancing of kind is RAchannel-less handover (RACH-less switchings).RACH-less handover schemes can reduce Break period in switching, switching every time is avoided to be required for performing Stochastic accessing RA and reduce handover delay and improve Mobile robustness.In addition, reducing data flow interruption times is also advantageous for avoiding such as transmission control protocol (Transfer Control Protocol, referred to as TCP) retransmission time out and the lifting networking telephone (Voice over Internet Protocol, referred to as VOIP) quality.

For similar techniques in above-mentioned RACH-less and radio communication, UE need not perform complete with Target cell Random access procedure.But UE still needs to obtain the timing advance relation between Target cell, carry out corresponding up timing and adjust It is whole, interacted so as to carry out upstream data between Target cell.If the up timing advance for obtaining Target cell And corresponding up timing adjustment how is accurately carried out, the present invention provides solution.

The problem of for how accurately to determine the up timing of Target cell in correlation technique, there is presently no effective solution Certainly scheme.

The content of the invention

The embodiments of the invention provide a kind of acquisition methods and device of up timing, at least to solve in correlation technique such as The problem of up timing of what accurate determination Target cell.

According to one embodiment of present invention, there is provided a kind of acquisition methods of up timing, including：In user equipment (UE) Before switching to Target cell by cell-of-origin, the UE obtains the configuration information of upward signal or up channel, and the UE is based on The descending timing of first community sends the upward signal or up channel to the Target cell and/or the cell-of-origin；Institute UE is stated according to the timing advance TA orders that receive, the current timing of the descending timing of second community and/or the cell-of-origin carries Preceding value determines the up timing of the Target cell, wherein, the TA orders are the Target cells according to the up letter Number or up channel be calculated, the first community type includes the cell-of-origin or the Target cell, described Two cell types include the cell-of-origin or the Target cell.Alternatively, the upward signal or up channel include with It is one of lower：Sounding Reference Signal SRS, Physical Random Access Channel PRACH or other upward signals or up channel. Alternatively, in the case where the transmission upward signal or up channel are SRS or non-PRACH, methods described also includes：Institute State timing advance value Ns of the UE according to the cell-of-origin_TAIt is small to the target to determine to send the upward signal or up channel Area and/or the delivery time of the cell-of-origin.

Alternatively, in the case where the first community type and second community type are cell-of-origin, it is characterised in that Methods described includes：Before user equipment (UE) switches to Target cell by cell-of-origin, the UE obtains upward signal or up The configuration information of channel, descending timings of the UE based on cell-of-origin send the upward signal or up channel to the target Cell and/or the cell-of-origin；The UE is according to the timing advance TA orders received, the descending timing of cell-of-origin and/or institute The current timing advance value in cell-of-origin is stated to determine the up timing of the Target cell, wherein, the TA orders are the mesh Mark cell is calculated according to the upward signal or up channel.

Alternatively, it is cell-of-origin in the first community type, in the case that the second community type is Target cell, Characterized in that, methods described includes：Before user equipment (UE) switches to Target cell by cell-of-origin, the UE obtains up The configuration information of signal or up channel, descending timings of the UE based on cell-of-origin send the upward signal or up channel To the Target cell and/or the cell-of-origin；The UE according to the timing advance TA orders received, Target cell it is descending The current timing advance value of timing and/or the cell-of-origin determines the up timing of the Target cell, wherein, the TA lives Order is that the Target cell is calculated according to the upward signal or up channel.

Alternatively, it is Target cell in the first community type, the second community type is the situation of Target cell Under, it is characterised in that methods described includes：Before user equipment (UE) switches to Target cell by cell-of-origin, the UE is obtained The configuration information of upward signal or up channel, descending timings of the UE based on Target cell send the upward signal or on Row channel gives the Target cell and/or the cell-of-origin；The UE is according to the timing advance TA orders received, Target cell Descending timing and/or the cell-of-origin current timing advance value determine the up timing of the Target cell, wherein, institute It is that the Target cell is calculated according to the upward signal or up channel to state TA orders.

Alternatively, the UE is according to the timing advance TA orders received, the descending timing of second community and/or the source The current timing advance value of cell includes to perform timing adjustment：The TA orders are the Target cells according to the up letter Number or up channel be calculated, wherein, the Target cell passes through Handover Request Acknowledge Handover Request Acknowledge or X2 sets response Setup Response to notify the TA orders to the cell-of-origin.

Alternatively, the configuration information of the upward signal or up channel is configured by following three kinds of modes：The source is small Area configures, wherein, the cell-of-origin sets request Setup Request by handover request Handover Request or X2 By the configuration notification to Target cell；Target cell configures；The cell-of-origin and the Target cell consult configuration.

Alternatively, the first community type and the second community type include：Cell-of-origin or Target cell；Institute State UE and determine the first community type and the second community type according to one of in the following manner：According to notification message or pre- If regular, wherein, the notification message sends for the cell-of-origin.Alternatively, the notification message is carried on the cell-of-origin In the switching command sent to UE, or, be carried on the configuration information of the upward signal or up channel, or with it is described on The configuration information of row signal or up channel is sent together.

Alternatively, in the UE handoff procedures, the UE does not perform the up timing adjustment for the cell-of-origin Operation, the operation include：The UE does not perform the timing advance order that the cell-of-origin is sent, and/or, the UE with it is described The timing advance value of cell-of-origin keeps constant, or, the up timing relationship of the UE and the cell-of-origin keeps constant.

According to one embodiment of present invention, there is provided a kind of acquisition methods of up timing, including：In user equipment (UE) Before switching to Target cell by cell-of-origin, the cell-of-origin sends the configuration information of upward signal or up channel to UE；Institute State cell-of-origin and receive the upward signal or up channel that the UE is sent, wherein, the upward signal or up channel are Descending timings of the UE based on first community is sent, and the first community type includes the cell-of-origin or the target Cell；The cell-of-origin sends timing advance TA orders to the UE, wherein, the TA orders that the UE foundations receive, the The descending timing of two cells and/or the cell-of-origin current timing advance value performs timing adjustment, is adjusted by the timing The whole up timing for determining the Target cell, wherein, the TA orders be the Target cell according to the upward signal or What up channel was calculated；The second community type includes the cell-of-origin or the Target cell.Alternatively, in institute State before cell-of-origin sends the configuration information of upward signal or up channel to UE, including：The cell-of-origin passes through handover request Handover Request or X2 set request Setup Request to notify the configuration information to Target cell.It is optional Ground, after the upward signal or up channel that the cell-of-origin receives that the UE is sent, the cell-of-origin will receive The temporal information for sending upward signal or up channel, and/or, the cell-of-origin and the timing offset of the Target cell Information is notified to the Target cell.Alternatively, the cell-of-origin passes through high-level signaling, MAC PDU/CE, physical layer control letter Order or physical layer control down channel send a notification message to UE, wherein, the notification message is used to setting described first small Area's type and the second community type.Alternatively, the notification message is carried on the cell-of-origin and ordered to the switching that UE is sent In order, or, be carried on the configuration information of the upward signal or up channel, or with the upward signal or up channel Configuration information send together.Alternatively, in the UE handoff procedures, cell-of-origin does not perform the up timing for the UE Related operation, wherein, the operation includes：The cell-of-origin does not perform the measurement of timing advance of the UE, or, the source Cell does not send the TA orders of the cell-of-origin to the UE, or, the cell-of-origin and the up timing relationship of the UE are protected Hold constant.

According to one embodiment of present invention, there is provided a kind of acquisition methods of up timing, including：In user equipment (UE) Before switching to Target cell by cell-of-origin, the Target cell receives the upward signal or up channel that the cell-of-origin is sent Configuration information；TA orders are calculated according to the upward signal or up channel received in the Target cell, wherein, The upward signal or up channel are that descending timings of the UE based on first community is sent, the first community type bag Include the cell-of-origin or the Target cell；The Target cell sends timing advance TA orders to the UE, wherein, institute UE is stated according to the TA orders that receive, the descending timing of second community and/or the cell-of-origin current timing advance value is held Row timing adjustment, the up timing of the Target cell is determined by the timing adjustment, wherein, the second community type bag Include the cell-of-origin or the Target cell.Alternatively, the Target cell sends timing advance TA orders to the UE Including：The Target cell is set by Handover Request Acknowledge Handover Request Acknowledge or X2 and responded Setup Response by the TA orders notify to the cell-of-origin, wherein, the TA orders are transmitted to by the cell-of-origin The UE.

According to one embodiment of present invention, there is provided a kind of acquisition methods of up timing, including：In user equipment (UE) Before Target cell being switched to by cell-of-origin, the timing advance value of the UE according to cell-of-origin, the cell-of-origin and the target The downstream signal that cell is sent simultaneously reaches the transmission time delay difference of the UE, and/or, the timing offset of cell-of-origin and Target cell The timing advance TA of the Target cell is calculated；The UE determines the up fixed of the Target cell by the TA When.

Alternatively, methods described also includes：In the UE handoff procedures, the UE is not performed for the cell-of-origin The operation of up timing adjustment, the operation include：The UE does not perform the timing advance order that the cell-of-origin is sent, or, The UE and the timing advance value of the cell-of-origin keep constant, or, the UE and the up timing relationship of the cell-of-origin Keep constant.

According to another embodiment of the invention, there is provided a kind of acquisition device of up timing, applied to UE, including： First sending module, for before user equipment (UE) switches to Target cell by cell-of-origin, obtaining upward signal or up letter The configuration information in road, and the descending timing based on first community sends the upward signal or up channel to the Target cell And/or the cell-of-origin；First determining module, for according to the timing advance TA orders that receive, second community it is descending fixed When and/or the cell-of-origin current timing advance value determine the up timing of the Target cell, wherein, the TA orders The Target cell is calculated according to the upward signal or up channel, and the first community type includes the source Cell or the Target cell, the second community type include the cell-of-origin or the Target cell.

Alternatively, the upward signal or up channel include one below：Sounding Reference Signal SRS, physics with Machine accesses channel PRACH or other upward signals or up channel.

Alternatively, in the case where the transmission upward signal or up channel are SRS or non-PRACH, described first Sending module is additionally operable to the timing advance value N according to the cell-of-origin_TACome determine to send the upward signal or up channel to The Target cell and/or the delivery time of the cell-of-origin.

Alternatively, in the case where the first community type and second community type are cell-of-origin, first hair Module is sent, is additionally operable to before user equipment (UE) switches to Target cell by cell-of-origin, obtains upward signal or up channel Configuration information, and descending timing based on cell-of-origin send the upward signal or up channel to the Target cell and/or The cell-of-origin；First determining module, the UE is additionally operable to according to the timing advance TA orders received, under cell-of-origin Row timing and/or the current timing advance value in the cell-of-origin determine the up timing of the Target cell, wherein, the TA Order is that the Target cell is calculated according to the upward signal or up channel.

Alternatively, it is cell-of-origin in the first community type, in the case that the second community type is Target cell, First sending module, is additionally operable to before user equipment (UE) switches to Target cell by cell-of-origin, obtain upward signal or The configuration information of up channel, and the descending timing based on cell-of-origin sends the upward signal or up channel to the target Cell and/or the cell-of-origin；First determining module, it is additionally operable to small according to the timing advance TA orders received, target The descending timing in area and/or the cell-of-origin current timing advance value determines the up timing of the Target cell, wherein, The TA orders are that the Target cell is calculated according to the upward signal or up channel.

Alternatively, it is Target cell in the first community type, the second community type is the situation of Target cell Under, it is characterised in that first sending module, it is additionally operable to before user equipment (UE) switches to Target cell by cell-of-origin, Obtain the configuration information of upward signal or up channel, and the descending timing based on Target cell send the upward signal or on Row channel gives the Target cell and/or the cell-of-origin；First determining module, it is additionally operable to carry according to the timing received Preceding TA orders, the descending timing of Target cell and/or the cell-of-origin current timing advance value determine the Target cell Up timing, wherein, the TA orders are that the Target cell is calculated according to the upward signal or up channel.

Alternatively, the first community type and the second community type include：Cell-of-origin or Target cell；Institute State UE and determine the first community type and the second community type according to one of in the following manner：According to notification message or pre- If regular, wherein, the notification message sends for the cell-of-origin.

Alternatively, the notification message is carried in the switching command that the cell-of-origin is sent to UE, or, it is carried on institute The configuration information of upward signal or up channel is stated, or is risen with the configuration information one of the upward signal or up channel Send.

Alternatively, in the UE handoff procedures, the UE does not perform the up timing adjustment for the cell-of-origin Operation, the operation include：The UE does not perform the timing advance order that the cell-of-origin is sent, and/or, the UE with it is described The timing advance value of cell-of-origin keeps constant.

According to one embodiment of present invention, there is provided a kind of acquisition device of up timing, applied to cell-of-origin, bag Include：Second sending module, for before user equipment (UE) switches to Target cell by cell-of-origin, sending upward signal or up The configuration information of channel is to UE；First receiving module, the upward signal or up channel sent for receiving the UE, its In, the upward signal or up channel are that descending timings of the UE based on first community is sent, the first community class Type includes the cell-of-origin or the Target cell；3rd sending module, for timing advance TA orders to be sent to described UE, wherein, the UE is according to the TA orders received, the current timing of the descending timing of second community and/or the cell-of-origin Advance value performs timing adjustment, determines the up timing of the Target cell by the timing adjustment, wherein, the TA lives Order is that the Target cell is calculated according to the upward signal or up channel；The second community type includes described Cell-of-origin or the Target cell.

Alternatively, before the configuration information of cell-of-origin transmission upward signal or up channel is to UE, the source is small Area by handover request Handover Request or X2 set request Setup Request by the configuration information notify to Target cell.

Alternatively, first receiving module is additionally operable to receive the upward signal that the UE is sent in the cell-of-origin Or after up channel, the temporal information of the transmission upward signal or up channel will be received, and/or, the cell-of-origin Notified with the timing offset information of the Target cell to the Target cell.

Alternatively, the cell-of-origin passes through high-level signaling, MAC PDU/CE, physical layer control signaling or physical layer control Down channel sends a notification message to UE, wherein, the notification message is used to set the first community type and described second Cell type.

Alternatively, in the UE handoff procedures, cell-of-origin is not performed for the related operation of the up timing of the UE, Wherein, the operation includes：The cell-of-origin does not perform the measurement of timing advance of the UE, or, the cell-of-origin is not sent The TA orders of the cell-of-origin are to the UE.

According to one embodiment of present invention, there is provided a kind of acquisition device of up timing, applied to Target cell, its It is characterised by, including：Second receiving module, for before user equipment (UE) switches to Target cell by cell-of-origin, receiving institute State the upward signal of cell-of-origin transmission or the configuration information of up channel；Processing module, for described up according to receiving TA orders are calculated in signal or up channel, wherein, the upward signal or up channel are that the UE is based on first community Descending timing send, the first community type includes the cell-of-origin or the Target cell；4th sending module, For timing advance TA orders to be sent to the UE, wherein, the UE according to the TA orders received, second community it is descending Timing and/or the cell-of-origin current timing advance value performs timing adjustment, and the mesh is determined by the timing adjustment The up timing of cell is marked, wherein, the second community type includes the cell-of-origin or the Target cell.Alternatively, 4th sending module is additionally operable to set by Handover Request Acknowledge Handover Request Acknowledge or X2 Setup Response are responded to notify the TA orders to the cell-of-origin, wherein, the cell-of-origin turns the TA orders Issue the UE.

According to the alternative embodiment of the present invention, there is provided a kind of acquisition device applied to the up timings of UE, it is special Sign is, including：Computing module, before user equipment (UE) switches to Target cell by cell-of-origin, the timing according to cell-of-origin The transmission time delay difference for the downstream signal arrival UE that advance value, the cell-of-origin and the Target cell are sent simultaneously, and/ Or, the timing advance TA of the Target cell is calculated in the timing offset of cell-of-origin and Target cell；Second determining module, use In the up timing that the Target cell is determined by the TA.Alternatively, described device also includes：Switched in the UE Cheng Zhong, the UE do not perform the operation of the up timing adjustment for the cell-of-origin, and the operation includes：The UE does not perform institute The timing advance order of cell-of-origin transmission is stated, or, the timing advance value of the UE and the cell-of-origin keeps constant, or, The UE and the up timing relationship of the cell-of-origin keep constant.

By the present invention, because before UE switching cells or during switching cell, UE is up fixed based on cell-of-origin When either descending timing or the descending timing of Target cell, send upward signal or up channel, Target cell is according to obtaining The transmission upward signal or up channel taken can be calculated timing advance TA orders, UE according to the TA orders received, The up timing of the descending timing determination Target cell of cell-of-origin or Target cell, solves and how accurately to determine Target cell Up timing the problem of, in the case where reducing Stochastic accessing and whole handover delay, obtain Target cell exactly Up timing.

Brief description of the drawings

Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：

Fig. 1 is a kind of acquisition methods flow chart of up timing applied to UE sides according to embodiments of the present invention；

Fig. 2 is the schematic diagram that TA values are calculated according to the UE of alternative embodiment of the present invention；

Fig. 3 is that cell-of-origin is illustrated with Target cell transmission time delay difference in the asynchronous scene according to alternative embodiment of the present invention Figure；

Fig. 4 is a kind of acquisition methods flow chart of up timing applied to cell-of-origin side according to embodiments of the present invention；

Fig. 5 is a kind of acquisition methods flow of up timing applied to Target cell side according to embodiments of the present invention Figure；

Fig. 6 is a kind of acquisition methods flow chart of up timing according to embodiments of the present invention；

Fig. 7 is a kind of acquisition device structured flowchart of up timing applied to UE according to embodiments of the present invention；

Fig. 8 is a kind of acquisition device structured flowchart of up timing applied to cell-of-origin according to embodiments of the present invention；

Fig. 9 is a kind of acquisition device structural frames of up timing applied to Target cell according to embodiments of the present invention Figure；

Figure 10 is a kind of acquisition device structured flowchart of up timing according to embodiments of the present invention.

Embodiment

Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not conflicting In the case of, the feature in embodiment and embodiment in the application can be mutually combined.

It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, " Two " etc. be for distinguishing similar object, without for describing specific order or precedence.

It should also be noted that, the switching method that the application records is switchings of the UE between different districts, it is equally applicable In switchings of the UE between different base station.

Embodiment 1

The embodiment of the present application can be run in cellular system, (including but is not limited to cellular system), the grid The network architecture can include network side equipment (such as base station) and terminal.Provide in the present embodiment one kind can run on it is above-mentioned Switching method in the network architecture is, it is necessary to illustrate, the running environment of the above-mentioned switching method provided in the embodiment of the present application It is not limited to the above-mentioned network architecture.

For similar techniques in the RACH-less described in background technology and radio communication, UE need not be small with target Area performs complete random access procedure.But UE still needs to obtain the timing advance relation between Target cell, carry out corresponding Up timing adjustment, interact so that after the completion of switching upstream data can be carried out rapidly between Target cell.For such as Fruit obtains the up timing advance of Target cell and how accurately to carry out corresponding up timing adjustment, the embodiment of the present application The technical scheme provided is as follows：

Cell-of-origin configuration UE sends upward signal or up channel, and notifies UE and the Target cell configuration；Or The configuration of the upward signal or up channel is determined by Target cell and notifies, to cell-of-origin, to be notified to UE by cell-of-origin；Or Person, the configuration of the upward signal or up channel carry out coordination by two cells and determined, notified by cell-of-origin to UE.Alternative Either up channel can be PRACH and/or SRS or other upward signals or up channel to upward signal.Upward signal or Person's up channel is mainly used in determining timing advance or the up timing of UE and Target cell.

Alternatively, alternative signal can be non-competing PRACH.Because competition RACH needs longer execution time, example As UE has successfully received the accidental access response (Random Access Response, referred to as RAR) of oneself in subframe n, then UE Message Msg3 can be sent in n+k1 (k1 >=6) first available sub-frame of uplink, disappeared in addition it is also necessary to which base station sends competitive decision Breath.The two steps take longer for.

UE can be based on cell-of-origin descending timing (or descending sub frame timing and/or descending frame timing, adopt in this application With same describing mode, omit " or descending sub frame timing and/or descending frame timing ") it is also based on the descending of Target cell Timing sends the upward signal or up channel.It is SRS's or other non-PRACH if up signal or up channel Upward signal or up channel, when sending the upward signal or up channel, also need the timing based on current source cell Advance value N_TAValue (see Rel-13 36.213, similarly hereinafter) determines delivery time.

When UE receive Target cell transmission timing advance order (TA command), can be based on the descending of cell-of-origin Regularly, the up timing of Target cell can also be determined based on the descending timing of Target cell.Equally, if the upward signal Either up channel is SRS or other non-PRACH upward signal or up channel, it is determined that the up timing of Target cell When, also need the timing advance value N based on current source cell_TAValue (see Rel-13 36.213) determines the up timing of Target cell.

After UE determines the up timing interacted with Target cell, after the completion of switching, it is possible to carried out with Target cell Normal up-downgoing data interaction.

The problem of the application is for the method for above-mentioned record and for described in background technology, gives three kinds of solution party Method, three kinds of solution methods are as follows：

Solution method one (corresponding alternative embodiment one and two hereafter)：

Constraint is before handover or among switching, the up timing of descending timing or cell-of-origin of the UE based on cell-of-origin, hair Send alternative upward signal or up channel.The upward signal or up channel send configuration are by cell-of-origin and Target cell Know altogether, be mainly used in determining timing advance or the up timing of UE and Target cell.

And/or the timing advance of descending timing, and/or the Target cell calculating that receives of the constraint UE based on cell-of-origin The current timing advance value of order, and/or cell-of-origin, is timed adjustment, Target cell is determined according to the timing adjustment Up timing.

Solution method two (corresponds to alternative embodiment three to six hereafter)：

And/or cell-of-origin will receive the temporal information, and/or cell-of-origin and mesh of the upward signal or up channel The timing offset information of mark cell is notified to Target cell.

The timing advance order of descending timing, and/or the Target cell calculating that receives of the constraint UE based on Target cell, And/or the timing advance value that cell-of-origin is current, adjustment is timed, to determine the up timing of Target cell.

Solution method three (corresponds to alternative embodiment seven and eight hereafter)：

Constraint descending timings of the UE based on Target cell, sends alternative upward signal before handover or among switching Or up channel.The upward signal or up channel send configuration are known altogether by cell-of-origin and Target cell, are mainly used in really Determine UE and Target cell timing advance or up timing.

And/or the timing of descending timing, and/or the Target cell calculating that receives of the constraint UE based on Target cell carries Preceding order, and/or the current timing advance value in cell-of-origin, are timed adjustment, to determine the up timing of Target cell.

For above-mentioned three kinds solution methods, for UE restriction behavior, can be situated between by cell-of-origin by high-level signaling, media Enter key-course protocol Data Unit (Media Access Control Protocol Data Unit, referred to as MAC PDU), Media intervention key-course control element (Media Access Control Control Element, referred to as MAC CE), thing Reason layer control signaling or physical layer control down channel notify to UE, according to any timing come send the upward signal or Up channel, and/or, the up timing of Target cell is determined according to any timing.Alternatively, above-mentioned restriction behavior can be with Notified by cell-of-origin in switching command to UE, or, it is carried on the configuration information of the upward signal or up channel, Huo Zheyu The configuration information of the upward signal or up channel is sent together.

Or the restriction behavior for UE, setting can be predefined.It is for example, above-mentioned come specification by 3GPP standard agreements Restriction behavior, UE according to the predefined specification of standard agreement, come determine according to any timing come send the upward signal or Up channel, and/or, the up timing of Target cell is determined according to any timing.In this case, cell-of-origin, mesh Cell and the UE three is marked all to understand this restriction behavior or timing relationship, thus need not again by cell-of-origin notify to UE。

In the solution method of above-mentioned record, following technical problem be present, firstly, since in handoff procedure, UE by with The data interaction of cell-of-origin is increasingly turned to the data interaction with Target cell.Cell-of-origin and UE data interaction demand or necessity Reduce.If cell-of-origin subframe n transmission timings adjustment order in handoff procedure, UE needs just to start to apply to be somebody's turn to do in subframe n+6 Timing advance value is adjusted.Therefore UE probably also has not enough time to adjustment and the up timing of cell-of-origin, has switched out Go.In RACH-less or similar techniques, the up timing advance of Target cell is calculated before switching or before handoff procedure Phase begins to, and now cell-of-origin is still UE serving cell.This when cell-of-origin and Target cell all transmission timings shift to an earlier date Order, UE can be caused to produce the confusion of up transmission timing；Meanwhile according to it is above-mentioned based on UE calculate TA method, cell-of-origin Timing advance adjustment can cause the timing advance of Target cell to adjust, and UE needs to calculate and adjust repeatedly and the timing of Target cell Advance parameter.UE power consumptions and implementation complexity can be increased.

The problem of for above-mentioned record, the application describe following solution party again on the basis of above-mentioned three kinds of solution methods Method：Constraining in UE handoff procedures, cell-of-origin is not performed for the related operation of the up timing of the UE, and/or, constrain in UE In handoff procedure, UE does not perform the up timing adjustment for cell-of-origin.Specifically include：Constrain in UE handoff procedures, source is small Area does not perform the measurement of timing advance of the UE.Or constrain in UE handoff procedures, the timing that cell-of-origin does not send cell-of-origin carries Before order and give the UE.Or constrain the cell-of-origin and the UE up timing relationship and keep constant.Or constrain in UE switchings During, UE does not perform the timing advance order of cell-of-origin transmission.Or constrain in UE handoff procedures, UE and cell-of-origin Timing advance value keeps constant.Or constrain the up timing relationship of the UE and the cell-of-origin and keep constant.In present specification TA orders in the solution method 1 of record are that Target cell is calculated, and in the related art, calculating TA orders has Two methods, one kind are to calculate TA based on base station, and another kind is to calculate TA based on UE, and the UE that constrains in the above-described embodiments is cut During changing, cell-of-origin is not performed for the related operation of the up timing of the UE, and/or, constrain in UE handoff procedures, UE The method for not performing the up timing adjustment for cell-of-origin, the method for being not limited to be calculated TA based on base station, is equally applicable to The method that TA is calculated based on UE.

A kind of a kind of acquisition methods for the up timing for running on the above-mentioned network architecture, Fig. 1 are provided in the present embodiment It is a kind of acquisition methods flow chart of up timing applied to UE sides according to embodiments of the present invention, as shown in figure 1, the flow Comprise the following steps：

Step S102, before user equipment (UE) switches to Target cell by cell-of-origin, the UE obtain upward signal or on The configuration information of row channel, it is small to the target that descending timings of the UE based on first community sends the upward signal or up channel Area and/or the cell-of-origin.Alternatively, the configuration of above-mentioned upward signal or up channel is that cell-of-origin and Target cell are known.

According to the timing advance TA orders received, the descending timing of second community and/or the source are small by step S104, the UE The current timing advance value in area determines the up timing of the Target cell, wherein, the TA orders are the Target cells according to should What upward signal or up channel were calculated, the first community type includes the cell-of-origin or the Target cell, and this second Cell type includes the cell-of-origin or the Target cell.

Alternatively, the executive agent of above-mentioned steps can be user equipment etc., but not limited to this.

In RACH-less scenes or similar techniques, it is below two kinds and calculates TA (timing advance, Timing Advanced scheme), the first scheme are to calculate TA based on UE, and another scheme is to calculate TA based on eNB.

First method：TA is calculated based on UE, Fig. 2 is the signal that TA values are calculated according to the UE of alternative embodiment of the present invention Figure, as illustrated in fig. 2, it is assumed that UE to cell-of-origin (or source base station, similarly hereinafter) and Target cell (or target BS, similarly hereinafter) transmission when Prolong is T1 and T2 respectively.It is assumed that uplink time delay is identical with downlink transfer time delay, it is assumed that UL propagation delay times and DL propagation delay times Identical, then UE can obtain the TA of Target cell by following formula by the TA of cell-of-origin：

TA_target=TA_source-2*ΔT

Wherein, Δ T=T1-T2.

Above formula is applied to synchronizing network and asynchronous network.

Fig. 3 is that cell-of-origin is illustrated with Target cell transmission time delay difference in the asynchronous scene according to alternative embodiment of the present invention Figure, as shown in figure 3, not only describe asynchronous scene, t1=t3, Td=0 in synchronization scenarios namely Fig. 3.Do not deposit two minizones In the internal timing deviation of transmission.For synchronizing network, a UE can be according to cell-of-origin and the DL of Target cell transmission simultaneously Signal receives timing, to obtain UE to cell-of-origin and the DL transmission time delay differences of Target cell.UE can directly computation obtain TA values, namely it voluntarily performs TA orders.

For asynchronous network, Δ T also needs to consider the internal timing deviation between two cells, it is assumed that Target cell and source Internal timing deviation between cell is Td, as shown in Figure 3.Cell-of-origin sends downstream signal at the t1 moment, and UE connects in t2 Corresponding signal is received, the propagation delay time of source cell base station to UE is T1=t2-t1.Similar, Target cell is in the case where the t3 moment sends Row signal, UE receive corresponding signal in t4, and the propagation delay time of target cell base station to UE is T2=t4-t3.Then,

Δ T=T1-T2=(t2-t1)-(t4-t3)=(t3-t1)-(t4-t2)=Td- Δs t

Wherein, Δ t=t4-t2, can be calculated by the DL signals of two cells transmissions of UE receptions.

Second method：TA is calculated based on eNB.

The method that TA is calculated based on eNB mainly sends uplink control signal, base station root by configuring UE in handoff procedure Estimate TA according to the uplink control signal received.

Alternatively, the upward signal or up channel include one below：Sounding Reference Signal SRS, non-competing thing Manage RACH PRACH or other upward signals or up channel.

Alternatively, in the case where the transmission upward signal or up channel are SRS or non-PRACH, UE foundations should The timing advance value N of cell-of-origin_TATo determine to send the upward signal or up channel to the Target cell and/or the cell-of-origin Delivery time.

Alternatively, (correspond to and remember above in the case of being cell-of-origin in the first community type and second community type The technical scheme of the solution method one of load), it is characterised in that before user equipment (UE) switches to Target cell by cell-of-origin, The UE obtains the configuration information of upward signal or up channel, descending timings of the UE based on cell-of-origin send the upward signal or Up channel gives the Target cell and/or the cell-of-origin；The UE according to the timing advance TA orders that receive, cell-of-origin it is descending Timing and/or the cell-of-origin current timing advance value determines the up timing of the Target cell, wherein, the TA orders are these Target cell is calculated according to the upward signal or up channel.

Alternatively, it is cell-of-origin in the first community type, the second community type is (correspondence in the case of Target cell In the technical scheme for the solution method two recorded above), it is characterised in that it is small that target switched to by cell-of-origin in user equipment (UE) Before area, the UE obtains the configuration information of upward signal or up channel, and descending timings of the UE based on cell-of-origin is sent on this Row signal or up channel give the Target cell and/or the cell-of-origin；

The UE is according to the timing advance TA orders that receive, and the descending timing of Target cell and/or the cell-of-origin are currently Timing advance value determines the up timing of the Target cell, wherein, the TA orders are the Target cells according to the upward signal Or up channel is calculated.

Alternatively, it is Target cell in the first community type, the second community type is (right in the case of Target cell The technical scheme for the solution method three that Ying Yu is recorded above), it is characterised in that target is switched to by cell-of-origin in user equipment (UE) Before cell, the UE obtains the configuration information of upward signal or up channel, and descending timings of the UE based on Target cell is sent The upward signal or up channel give the Target cell and/or the cell-of-origin；

Alternatively, the UE is according to the timing advance TA orders received, the descending timing of second community and/or the cell-of-origin Current timing advance value includes to perform timing adjustment：

The TA orders are that the Target cell is calculated according to the upward signal or up channel, wherein, the target is small Area sets response Setup Response will by Handover Request Acknowledge Handover Request Acknowledge or X2 TA orders notice gives the cell-of-origin.

Alternatively, the configuration information of the upward signal or up channel is configured by following three kinds of modes：

The cell-of-origin configures, wherein, the cell-of-origin is set by handover request Handover Request or X2 and asked Setup Request are by the configuration notification to Target cell；Target cell configures；The cell-of-origin and the Target cell are consulted to match somebody with somebody Put.

Alternatively, the first community type and the second community type include：Cell-of-origin or Target cell；The UE according to One of under type determines the first community type and the second community type according to this：Foundation notification message or preset rules, its In, the notification message sends for the cell-of-origin.

In the technical scheme that the application records, share three kinds of technical schemes, i.e., the solution method one to three recorded above, Three kinds of methods can solve the technical method proposed in background technology, go solution technology to ask using any method specific to UE Topic, then there is two ways to go to determine, i.e., above described in the restriction behavior for UE two kinds of the way of restraint, above-mentioned optional reality Apply notification message in example and correspond to the first solution method above, i.e., by cell-of-origin by high-level signaling, MAC PDU/CE, Or physical layer control signaling/down channel is notified to UE, the signal/channel is sent according to any timing, and/or, foundation Any timing determines the up timing of Target cell.Alternatively, the notification message is carried on what the cell-of-origin was sent to UE In switching command, or, be carried on the configuration information of the upward signal or up channel, or with the upward signal or up letter The configuration information in road is sent together.

Corresponding second of the constrained procedure above of preset rules described in above-mentioned alternative embodiment, i.e., predefined setting. Such as by 3GPP standard agreements come the above-mentioned restriction behavior of specification, UE is according to the predefined specification of standard agreement, to determine foundation Any timing sends the signal/channel, and/or, the up timing of Target cell is determined according to any timing.At this moment Time cell-of-origin, Target cell, the UE three are clear to this restriction behavior or timing relationship, therefore need not be again by cell-of-origin Notify to UE.

Alternatively, in the UE handoff procedures, the UE does not perform the operation of the up timing adjustment for the cell-of-origin, should Operation includes：The UE does not perform the timing advance order of cell-of-origin transmission, and/or, the UE and the timing advance of the cell-of-origin Value keeps constant, or, the up timing relationship of the UE and the cell-of-origin keeps constant.Such as it is described above, the UE does not perform pin The situation for the Target cell calculating TA orders that the present embodiment is recorded is not limited to the method for the up timing adjustment of cell-of-origin, together Sample is applied to calculate the situation of TA orders based on UE.

Fig. 4 is a kind of acquisition methods flow chart of up timing applied to cell-of-origin side according to embodiments of the present invention, As shown in figure 4, step is as follows：

S402, before user equipment (UE) switches to Target cell by cell-of-origin, the cell-of-origin send upward signal or on The configuration information of row channel is to UE；

S404, the cell-of-origin receive upward signal or up channel of UE transmissions, wherein, the upward signal or up Channel is that descending timings of the UE based on first community is sent, and the first community type includes the cell-of-origin or the target is small Area；

S406, the cell-of-origin send timing advance TA orders to the UE, wherein, the TA orders that UE foundations receive, The descending timing of second community and/or the cell-of-origin current timing advance value performs timing adjustment, passes through the timing adjustment The up timing of the Target cell is determined, wherein, the TA orders are the Target cells according to the upward signal or up channel meter Draw；The second community type includes the cell-of-origin or the Target cell.

Alternatively, before the configuration information of cell-of-origin transmission upward signal or up channel is to UE, the cell-of-origin leads to Cross handover request Handover Request or X2 set request Setup Request the configuration information is notified it is small to target Area.

Alternatively, after the upward signal or up channel that UE transmissions are received in the cell-of-origin, the cell-of-origin will connect The temporal information of the transmission upward signal or up channel is received, and/or, the cell-of-origin and the timing offset of the Target cell are believed Breath notice gives the Target cell.

Alternatively, the cell-of-origin is by high-level signaling, MAC PDU/CE, under physical layer control signaling or physical layer control Row channel sends a notification message to UE, wherein, the notification message is used to set the first community type and the second community type. What above-described embodiment was recorded is which kind of the first constraint UE solve the method for method using, is sent a notification message by cell-of-origin. Alternatively, the notification message is carried in the switching command that the cell-of-origin is sent to UE, or, be carried on the upward signal or on The configuration information of row channel, or sent together with the configuration information of the upward signal or up channel.

Alternatively, in the UE handoff procedures, cell-of-origin is not performed for the related operation of the up timing of the UE, its In, the operation includes：The cell-of-origin does not perform the measurement of timing advance of the UE, or, the cell-of-origin does not send the cell-of-origin The UE is given in TA orders, or, the cell-of-origin and the UE up timing relationship keep constant.Such as it is described above, the cell-of-origin is not The method performed for the up timing adjustment of the UE is not limited to the feelings of the Target cell calculating TA orders of the present embodiment record Condition, it is equally applicable to calculate the situation of TA orders based on UE.

Fig. 5 is a kind of acquisition methods flow of up timing applied to Target cell side according to embodiments of the present invention Figure, as shown in figure 5, step is as follows：

S502, before user equipment (UE) switches to Target cell by cell-of-origin, the Target cell receives cell-of-origin hair The upward signal or the configuration information of up channel sent；

TA orders are calculated according to the upward signal or up channel received in S504, the Target cell, wherein, should Upward signal or up channel are that descending timings of the UE based on first community is sent, and it is small that the first community type includes the source Area or the Target cell；

S506, the Target cell send timing advance TA orders to the UE, wherein, the UE is according to the TA lives received Order, the descending timing of second community and/or the cell-of-origin current timing advance value determine the up timing of the Target cell, Wherein, the second community type includes the cell-of-origin or the Target cell.

Alternatively, timing advance TA orders are sent to the UE and included by the Target cell：The Target cell please by switching Ask and confirm that Handover Request Acknowledge or X2 set response Setup Response to notify the TA orders The cell-of-origin is given, wherein, the TA orders are transmitted to the UE by the cell-of-origin.

Fig. 6 is a kind of acquisition methods flow chart of up timing according to embodiments of the present invention, as shown in fig. 6, step is such as Under：

S602, before user equipment (UE) switches to Target cell by cell-of-origin, timing advances of the UE according to cell-of-origin Value, the downstream signal that the cell-of-origin and the Target cell are sent simultaneously reach the transmission time delay difference of the UE, and/or, cell-of-origin and The timing advance TA of the Target cell is calculated in the timing offset of Target cell；

S604, the UE determine the up timing of the Target cell by the TA.

Alternatively, in the UE handoff procedures, the UE does not perform the operation of the up timing adjustment for the cell-of-origin, should Operation includes：The UE does not perform the timing advance order of cell-of-origin transmission, or, the UE and the timing advance value of the cell-of-origin Keep constant, or, the up timing relationship of the UE and the cell-of-origin keeps constant.Such as it is described above, the UE, which is not performed, to be directed to The method of the up timing adjustment of the cell-of-origin is not limited to the situation of the Target cell calculating TA orders of the present embodiment record, together Sample is applied to calculate the situation of TA orders based on UE.

Alternative embodiment one (corresponding to the solution method one recorded above) of the present invention

The situation that it is PRACH when the upward signal or up channel for sending that the present embodiment, which describes, step are as follows：

Step 1, cell-of-origin configuration UE sends PRACH, and notifies the Target cell configuration.Alternatively, aforesaid operations can To occur before handover or in handoff procedure.Alternatively, the configuration can be in Handover Request or X2Setup Notified in Request to Target cell.The determination of configuration and the interaction between cell-of-origin and Target cell can equally use Method as described above, exemplified by the present embodiment is only set by cell-of-origin and notified to Target cell/UE.

Can also be described as before switching or in handoff procedure user equipment (UE) by cell-of-origin switch to Target cell it Before.Both implications are identical in present specification.

Step 2, the configuration that the UE is sent according to cell-of-origin, the descending timing based on cell-of-origin in UE sides, send PRACH.

Step 3, cell-of-origin receive the PRACH, calculate timing advance TA values.And by 11bit timing advance order (TA command 1) is sent to UE.And/or Target cell receives the PRACH, timing advance TA values are calculated, and by 11bit Timing advance order (TA command2) be sent to UE.At present cell calculate TA values, not actually Target cell with Real timing relationship or timing advance relation between UE, reason are UE according to the descending timing of cell-of-origin the PRACH that sends, Rather than according to the descending timing of Target cell come the PRACH that sends.Alternatively, TA command 2 can be existed by Target cell Notified in Handover Request Acknowledge or X2Setup Response to cell-of-origin, by cell-of-origin notify to UE。

Step 4, the TA command that UE receives cell-of-origin and/or Target cell is sent, and based under cell-of-origin Row timing, performs timing adjustment, to determine the up timing of Target cell.Before switching is completed or UE sends switching confirmation Before, N is calculated according to the TA command 1 of the cell-of-origin transmission received in UE_TAValue (see 3GPP Rel-13 36.213, It is hereafter same).And the descending timing based on cell-of-origin, timing adjustment is performed, to determine the up timing of cell-of-origin (see 3GPP Rel-13 36.211, hereafter together).UE sends upward signal or channel to cell-of-origin according to the up timing.UE is according to reception The TA command 2 that the Target cell arrived is calculated or sent, are calculated N_TAIt is worth (3GPP Rel-13 36.213, hereafter together), And the descending timing based on cell-of-origin, timing adjustment is performed, to determine the up timing of Target cell.In handoff procedure or After switching, UE sends upward signal or channel to Target cell according to the up timing.

Alternative embodiment two (corresponding to the solution method two recorded above) of the present invention

The situation that it is SRS or non-PRACH when the upward signal or up channel for sending that the present embodiment, which describes, step It is as follows：

Step 1, cell-of-origin configuration UE sends SRS or other non-PRACH upward signal or channel, and notifies target The cell configuration.The description below is by taking SRS as an example.Alternatively, aforesaid operations can occur before handover or in handoff procedure.Can Selection of land, the configuration can be notified to Target cell in Handover Request or X2Setup Request.The determination of configuration And the interaction between cell-of-origin and Target cell can equally use method as described above, the present embodiment is only set with cell-of-origin Determine and notify to exemplified by Target cell/UE.

Step 2, the UE are small in the descending timing of UE sides and/or current source based on cell-of-origin according to the configuration of cell-of-origin Area's timing advance value, send SRS.Here following situations are included based on descending timing of the cell-of-origin in UE sides：Source based on UE sides On cell downlink regular basis, by the up transmission timing of the current timing advance value determination in cell-of-origin.This is current up Transmission timing is also based on caused by descending timing of the cell-of-origin in UE sides.Cell-of-origin is in the descending timing of UE sides and current Cell-of-origin timing advance value, up timing of the cell-of-origin in UE sides is actually determined that.

Step 3, cell-of-origin receive the SRS, calculate timing advance TA values.And by 6bit timing advance order (TA Command 1) it is sent to UE.And/or Target cell receives the SRS, timing advance TA values are calculated, and by 6bit timing Advance command (TA command 2) is sent to UE.At present cell calculate TA values, not actually Target cell and UE it Between real timing or timing advance relation, reason is UE according to the descending timing of cell-of-origin the SRS that sends, rather than according to The descending timing of Target cell is come the SRS that sends.Alternatively, TA command 2 can be by Target cell in Handover Notify, to cell-of-origin, to be notified to UE by cell-of-origin in Request Acknowledge or X2Setup Response.

Step 4, the TA command that UE receives cell-of-origin and/or Target cell is sent, and based under cell-of-origin Row timing and/or current cell-of-origin timing advance value, perform timing adjustment, to determine the up timing of Target cell.Cutting Change before completion or before UE sends switching confirmation, TA command 1 that UE is sent according to the cell-of-origin that receives, currently Timing advance value (N_TAValue) N_TA,old, new N is calculated_TAValue N_TA,new.And the descending timing based on cell-of-origin, it is fixed to perform When adjust, to determine the up timing of cell-of-origin.UE sends upward signal or channel to cell-of-origin according to the up timing.UE TA command 2, the current cell-of-origin N sent according to the Target cell received_TAValue N_TA,old, new N is calculated_TA Value N_TA,new.And the descending timing based on cell-of-origin, timing adjustment is performed, to determine the up timing of Target cell.Switching During or switching after, UE sends upward signal or channel to Target cell according to the up timing.

Alternatively, it is cell-of-origin in above-mentioned first community, when second community is Target cell, above-mentioned configuration information includes： The descending timing of the cell-of-origin or the up timing of the cell-of-origin.

Alternatively, configuration informations of the UE based on first community sends upward signal or up channel gives the Target cell And/or the cell-of-origin, wherein, the cell-of-origin will receive the temporal information of the transmission upward signal or up channel, and/or, The cell-of-origin and the timing offset information of the Target cell notify to give the Target cell.

Alternative embodiment three (corresponding to the solution method two recorded above) of the present invention

The present embodiment describes the upward signal or up channel sent under cell-of-origin and Target cell synchronization scenarios It is as follows for PRACH situation, step：

Step 1, cell-of-origin configuration UE sends PRACH, and notifies the Target cell configuration.Alternatively, aforesaid operations can To occur before handover or in handoff procedure.Alternatively, configuration can be in Handover Request or X2Setup Notified in Request to Target cell.The determination of configuration and the interaction between cell-of-origin and Target cell can equally use Method as described above, exemplified by the present embodiment is only set by cell-of-origin and notified to Target cell/UE.

Step 2, the UE is according to the configuration of cell-of-origin, the descending timing based on cell-of-origin in UE sides, sends PRACH.

Step 3, cell-of-origin is in Ts receptions to PRACH；And/or Target cell is in Tt receptions to PRACH；Source Cell notifies the timing for receiving PRACH or temporal information to Target cell.

Step 4, Target cell calculate according to the timing of the PRACH, the timing for the PRACH that cell-of-origin receives is received Timing advance TA values.And 11bit timing advance order (TA command 1) is sent to UE.Specifically, assume that target is small If area receives the timing of the PRACH according only to it, up timing adjustment amount corresponding to the TA command that are calculated is T.Corresponding TA command=T/ (16*Ts).Ts is a timing unit of the definition in Rel-13 36.211, is approximately equal to 32.55ns.Sent because PRACH is the descending timing based on cell-of-origin, the actual timing advance deviation of Target cell is also The path delay of time that UE to two cell should be subtracted is poor.Therefore actual timing advance deviation should be T '=T- (Ts-Tt).It is actual TA command 1=T '/(16*Ts).Alternatively, TA command 1 can be by Target cell in Handover Notify, to cell-of-origin, to be notified to UE by cell-of-origin in Request Acknowledge or X2Setup Response.

Step 5, UE receive the TA command 1 that Target cell is calculated or sent, and based under Target cell Row timing, performs timing adjustment, to determine the up timing of Target cell.UE is according to the TA of the Target cell received Command 1, is calculated N_TAIt is worth (Rel-13 36.213).And the descending timing based on Target cell, perform timing and adjust It is whole, to determine the up timing of Target cell.In handoff procedure or after switching, UE is sent up according to the up timing Signal or channel are to Target cell.

Alternative embodiment four (corresponding to the solution method two recorded above) of the present invention

The present embodiment describes the upward signal or up channel sent under cell-of-origin and Target cell synchronization scenarios It is as follows for SRS or non-PRACH situation, step：

Step 1, cell-of-origin configuration UE sends SRS or other non-PRACH upward signal or channel, and notifies target The cell configuration.The description below is by taking SRS as an example.Alternatively, aforesaid operations can occur before handover or in handoff procedure.Can Selection of land, configuration can be notified to Target cell in Handover Request or X2Setup Request.The determination of configuration and Interaction between cell-of-origin and Target cell can equally use method as described above, and the present embodiment is only set with cell-of-origin Exemplified by notifying to Target cell/UE.

Step 2, the UE are small in the descending timing of UE sides and/or current source based on cell-of-origin according to the configuration of cell-of-origin Area's timing advance value, send SRS.Including following situations：On the descending regular basis in cell-of-origin based on UE sides, by current timing The up transmission timing that advance value determines, SRS is sent according to this up transmission timing.This current up transmission timing is also Caused by descending timing based on cell-of-origin in UE sides.Cell-of-origin carries in the descending timing of UE sides and the timing of current cell-of-origin Preceding value, up timing of the cell-of-origin in UE sides is actually determined that.

Step 3, cell-of-origin is in Ts receptions to SRS；And/or Target cell is in Tt receptions to SRS；Cell-of-origin The timing for receiving SRS or temporal information are notified to Target cell.

Step 4, Target cell calculate timing according to the timing of the SRS, the timing for the SRS that cell-of-origin receives is received TA values in advance.And 6bit timing advance order (TA command 1) is sent to UE.If specifically, assume Target cell The timing of the SRS is received according only to it, up timing adjustment amount corresponding to the TA command being calculated is T.Accordingly TAcommand=T/ (16*Ts).Ts is a timing unit of the definition in Rel-13 36.211, is approximately equal to 32.55ns.Cause It is that the descending timing based on cell-of-origin is sent for SRS, so the timing advance deviation of Target cell reality should also subtract UE to two The path delay of time of individual cell is poor.Therefore actual timing advance deviation should be T '=T- (Ts-Tt).Actual TA command 1=T '/(16*Ts).Alternatively, TA command 1 can be by Target cell in Handover Request Acknowledge Or notify, to cell-of-origin, to be notified to UE by cell-of-origin in X2 Setup Response.

Step 5, UE receive the TA command 1 that Target cell is calculated or sent, and based on current cell-of-origin The descending timing of timing advance value and Target cell, timing adjustment is performed, to determine the up timing of Target cell.UE roots According to the TA command 1 of the Target cell received, current cell-of-origin timing advance value (N_TAValue) N_TA,old, it is calculated new N_TAValue N_TA,new.And the descending timing based on Target cell, timing adjustment is performed, to determine the up timing of Target cell. In handoff procedure or after switching, UE sends upward signal or channel to Target cell according to the up timing.UE is first During the timing advance order of secondary performance objective cell, because Target cell there is currently no N_TAValue (or being 0), and send before SRS is descending timing and/or up timing based on cell-of-origin, therefore according to cell-of-origin N_TAValue N_TA,oldTo obtain new N_TAValue N_TA,new, and perform timing adjustment.Hereafter if timing advance adjustment is performed again, according to the current N of Target cell_TAValue N_TA,oldCome Obtain new N_TA。

Alternative embodiment five (corresponding to the solution method two recorded above) of the present invention

The present embodiment describes the upward signal or up channel sent under cell-of-origin and the asynchronous scene of Target cell It is as follows for PRACH situation, step：

Assuming that Target cell and the timing offset of cell-of-origin are Td, and as shown in Fig. 3 left side, Td=(t3-t1).

Step 3, cell-of-origin is in Ts receptions to PRACH；Target cell is in Tt receptions to PRACH；Cell-of-origin will Receive PRACH timing or temporal information is notified to Target cell, such as Ts.And/or cell-of-origin is small by cell-of-origin and target The timing offset Td in area is notified to Target cell.

Step 4, Target cell is according to receiving its PRACH timing, the timing for the PRACH that cell-of-origin receives, two The timing offset of individual cell, calculate timing advance TA values.And 11bit timing advance order (TA command 1) is sent to UE.Specifically, assume that if Target cell receives the timing of the PRACH, the TA command couple being calculated according only to it The up timing adjustment amount answered is T.Corresponding TA command=T/ (16*Ts).Ts is the definition in Rel-13 36.211 One timing unit, is approximately equal to 32.55ns.So sent because PRACH is the descending timing based on cell-of-origin, target is small The actual timing advance deviation in area is also contemplated that the path delay of time difference of UE to two cell and the timing offset of two cells.Cause This actual timing advance deviation should be T '=T+Td- (Ts-Tt).Actual TA command 1=T '/(16*Ts).Can Selection of land, TA command 1 can be by Target cells in Handover Request Acknowledge or X2 Setup Notify in Response to cell-of-origin, notified by cell-of-origin to UE.

Step 5, UE receive the TA command 1 of Target cell transmission, and the descending timing based on Target cell, Timing adjustment is performed, to determine the up timing of Target cell.The TA command that UE is sent according to the Target cell received 1, N is calculated_TAIt is worth (Rel-13 36.213).And the descending timing based on Target cell, timing adjustment is performed, to determine The up timing of Target cell.In handoff procedure or after switching, UE sends upward signal or channel according to the up timing To Target cell.

Alternative embodiment six (corresponding to the solution method two recorded above) of the present invention

The present embodiment describes the upward signal or up channel sent under cell-of-origin and the asynchronous scene of Target cell It is as follows for SRS or non-PRACH situation, step：

Step 1, cell-of-origin configuration UE sends SRS or other non-PRACH upward signal or channel, and notifies target The cell configuration.The description below is by taking SRS as an example.Alternatively, aforesaid operations can occur before handover or in handoff procedure.Can Selection of land, configuration can be notified to Target cell in Handover Request or X2 Setup Request.The determination of configuration And the interaction between cell-of-origin and Target cell can equally use method as described above, the present embodiment is only set with cell-of-origin Determine and notify to exemplified by Target cell/UE.

Step 2, the UE are small in the descending timing of UE sides and/or current source based on cell-of-origin according to the configuration of cell-of-origin Area's timing advance value, send SRS.Including following situations：On the descending regular basis in cell-of-origin based on UE sides, by current timing The up transmission timing that advance parameter determines, SRS is sent according to this up transmission timing.This current up transmission timing It is based on caused by descending timing of the cell-of-origin in UE sides.Cell-of-origin is in the descending timing of UE sides and the timing of current cell-of-origin Advance value, up timing of the cell-of-origin in UE sides is actually determined that.

Step 3, cell-of-origin is in Ts receptions to SRS；And/or Target cell is in Tt receptions to SRS；Cell-of-origin The timing for receiving SRS or temporal information are notified to Target cell, such as Ts.And/or cell-of-origin is small by cell-of-origin and target The timing offset Td in area is notified to Target cell.

Step 4, Target cell is according to receiving its SRS timing, timing for the SRS that cell-of-origin receives, two small The timing offset in area, calculate timing advance TA values.And 6bit timing advance order (TA command 1) is sent to UE.Tool Body, it is assumed that up corresponding to the TA command that are calculated if Target cell receives the timing of the SRS according only to it Timing adjustment amount is T.Corresponding TA command=T/ (16*Ts).Ts is a timing of the definition in Rel-13 36.211 Unit, it is approximately equal to 32.55ns.So sent because SRS is the descending timing based on cell-of-origin, Target cell is actual to be determined Shi Tiqian deviations are also contemplated that the path delay of time difference of UE to two cell and the timing offset of two cells.Therefore it is actual to determine Shi Tiqian deviations should be T '=T+Td- (Ts-Tt).Actual TA command 1=T '/(16*Ts).Alternatively, TA Command1 can be notified by Target cell in Handover Request Acknowledge or X2Setup Response To cell-of-origin, notified by cell-of-origin to UE.

Step 5, the TA command 1 that UE receives cell-of-origin and/or Target cell is sent, and it is based on Target cell Descending timing, current cell-of-origin timing advance value, perform timing adjustment, to determine the up timing of Target cell.UE roots TA command1, the current cell-of-origin timing advance value (N sent according to the Target cell received_TAValue) N_TA,old, calculate To new N_TAValue N_TA,new.And the descending timing based on Target cell, timing adjustment is performed, to determine the up of Target cell Regularly.In handoff procedure or after switching, UE sends upward signal or channel to Target cell according to the up timing.UE In the timing advance order of first time performance objective cell, because Target cell there is currently no N_TAValue (or being 0), and before It is descending timing and/or up timing based on cell-of-origin to send SRS, therefore according to cell-of-origin N_TAValue N_TA,oldIt is new to obtain N_TAValue N_TA,new, and perform timing adjustment.Hereafter if timing advance adjustment is performed again, according to the current N of Target cell_TAValue N_TA,oldTo obtain new N_TA。

Alternatively, when above-mentioned first community and second community are Target cell, above-mentioned configuration information includes：Above-mentioned source The descending timing of cell or the up timing of above-mentioned cell-of-origin.

Alternatively, above-mentioned UE performs timing according to the timing advance TA orders and the descending timing of second community that receive Adjustment includes：Above-mentioned TA orders are that the Target cell is calculated according to the upward signal or up channel, wherein, above-mentioned mesh Mark cell gives TA orders notice to the cell-of-origin by Handover Request or X2 Setup Request.

Alternative embodiment seven (corresponding to the solution method three recorded above) of the present invention

The present embodiment is that the work as upward signal sent or up channel recorded according to above-mentioned alternative embodiment are PRACH A kind of situation, step is as follows：

Step 2, the configuration that the UE is sent according to cell-of-origin, the descending timing based on Target cell in UE sides, send PRACH。

Step 3, Target cell receive the PRACH, calculate timing advance TA values, and by 11bit timing advance order (TA command 1) is sent to UE.Alternatively, TA command 1 can be by Target cell in Handover Request Notify in Acknowledge or X2Setup Response to cell-of-origin, notified by cell-of-origin to UE.

Step 4, UE receive the TA command 1 of Target cell, and the descending timing based on Target cell, perform Timing adjustment, to determine the up timing of Target cell.The TA that UE is calculated or sent according to the Target cell received Command 1, is calculated N_TAIt is worth (3GPP Rel-1336.213, hereafter together), and the descending timing based on Target cell, Timing adjustment is performed, to determine the up timing of Target cell.In handoff procedure or after switching, UE is up fixed according to this When, upward signal or channel are sent to Target cell.

Alternative embodiment eight (corresponding to the solution method three recorded above) of the present invention

The present embodiment be according to above-mentioned alternative embodiment record when send the upward signal or up channel be SRS or A kind of non-PRACH of person situation, step are as follows：

Step 2, the configuration that the UE is sent according to cell-of-origin, based on Target cell in the descending timing of UE sides and/or currently The timing advance value of cell-of-origin, send SRS.On the descending regular basis of Target cell based on UE sides, determine by current cell-of-origin When advance value determine up transmission timing, to send SRS.

Step 3, Target cell receive the SRS, calculate timing advance TA values, and by 6bit timing advance order (TA Command 1) it is sent to UE.Alternatively, TA command 1 can be by Target cell in Handover Request Notify in Acknowledge or X2Setup Response to cell-of-origin, notified by cell-of-origin to UE.

Step 4, UE receive the TA command 1 that Target cell is calculated or sent, and based under Target cell Row timing, current cell-of-origin timing advance value, perform timing adjustment, to determine the up timing of Target cell.UE is according to connecing TA command 1, the current cell-of-origin N that the Target cell received is calculated or sent_TAValue N_TA,old, new N is calculated_TA Value N_TA,new.And the descending timing based on Target cell, timing adjustment is performed, to determine the up timing of Target cell.Cutting During changing or after switching, UE sends upward signal or channel to Target cell according to the up timing.

Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation The method of example can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but a lot In the case of the former be more preferably embodiment.Based on such understanding, technical scheme is substantially in other words to existing The part that technology contributes can be embodied in the form of software product, and the computer software product is stored in a storage In medium (such as ROM/RAM, magnetic disc, CD), including some instructions to cause a station terminal equipment (can be mobile phone, calculate Machine, server, or network equipment etc.) perform the method that each embodiment of the present invention is somebody's turn to do.

Embodiment 2

A kind of acquisition device of up timing is additionally provided in the present embodiment, and applied to user equipment (UE), the device is used In realizing above-described embodiment and preferred embodiment, repeating no more for explanation had been carried out.As used below, term " module " can realize the combination of the software and/or hardware of predetermined function.Although the device described by following examples is preferably Realized with software, but hardware, or software and hardware combination realization and may and be contemplated.

Fig. 7 is a kind of acquisition device structured flowchart of up timing applied to UE according to embodiments of the present invention, such as Fig. 7 Shown, the device includes：

First sending module 72, for before user equipment (UE) switches to Target cell by cell-of-origin, obtaining up letter Number or up channel configuration information, and the descending timing based on first community sends the upward signal or up channel and gives the mesh Mark cell and/or the cell-of-origin；

First determining module 74, it is connected with the first sending module 72, the timing advance TA orders received for foundation, the The descending timing of two cells and/or the cell-of-origin current timing advance value determines the up timing of the Target cell, wherein, The TA orders are that the Target cell is calculated according to the upward signal or up channel, and the first community type includes the source Cell or the Target cell, the second community type include the cell-of-origin or the Target cell.

Alternatively, in the case where the transmission upward signal or up channel are SRS or non-PRACH, first transmission Module 72 is additionally operable to the timing advance value N according to the cell-of-origin_TAThe target is given to determine to send the upward signal or up channel Cell and/or the delivery time of the cell-of-origin.

Alternatively, in the case where the first community type and second community type are cell-of-origin, it is characterised in that

First sending module 72, is additionally operable to before user equipment (UE) switches to Target cell by cell-of-origin, in acquisition The configuration information of row signal or up channel, and the descending timing based on cell-of-origin sends the upward signal or up channel to this Target cell and/or the cell-of-origin；

First determining module 74, be additionally operable to the UE according to the timing advance TA orders that receive, cell-of-origin it is descending fixed When and/or the cell-of-origin current timing advance value determine the up timing of the Target cell, wherein, the TA orders are the mesh Mark cell is calculated according to the upward signal or up channel.

Alternatively, it is cell-of-origin in the first community type, in the case that the second community type is Target cell, it is special Sign is,

First determining module 74, it is additionally operable to according to the timing advance TA orders received, the descending timing of Target cell And/or the cell-of-origin current timing advance value determines the up timing of the Target cell, wherein, the TA orders are the targets Cell is calculated according to the upward signal or up channel.

Alternatively, it is Target cell in the first community type, in the case that the second community type is Target cell, its It is characterised by, first sending module 72, is additionally operable to before user equipment (UE) switches to Target cell by cell-of-origin, in acquisition The configuration information of row signal or up channel, and the descending timing based on Target cell send the upward signal or up channel to The Target cell and/or the cell-of-origin；

Alternatively, the notification message is carried in the switching command that the cell-of-origin is sent to UE, or, it is up to be carried on this The configuration information of signal or up channel, or sent together with the configuration information of the upward signal or up channel.

Alternatively, in the UE handoff procedures, the UE does not perform the operation of the up timing adjustment for the cell-of-origin, should Operation includes：

The UE does not perform the timing advance order of cell-of-origin transmission, and/or, the UE and the timing advance value of the cell-of-origin Keep constant.

Fig. 8 is a kind of acquisition device structured flowchart of up timing applied to cell-of-origin according to embodiments of the present invention, As shown in figure 8, the device includes：

Second sending module 82, for before user equipment (UE) switches to Target cell by cell-of-origin, sending up letter Number or up channel configuration information to UE；

First receiving module 84, be connected with second sending module 82, for receive the UE transmission the upward signal or Up channel, wherein, the upward signal or up channel are that descending timings of the UE based on first community is sent, and this is first small Area's type includes the cell-of-origin or the Target cell；

3rd sending module 86, it is connected with first receiving module 84, for timing advance TA orders to be sent to the UE, Wherein, the UE is according to the TA orders that receive, the current timing advance value of the descending timing of second community and/or the cell-of-origin Timing adjustment is performed, the up timing of the Target cell is determined by the timing adjustment, wherein, the TA orders are the Target cells It is calculated according to the upward signal or up channel；The second community type includes the cell-of-origin or the Target cell.

Alternatively, first receiving module 84 is additionally operable to receive upward signal or up of UE transmissions in the cell-of-origin After channel, the temporal information of the transmission upward signal or up channel will be received, and/or, the cell-of-origin and the target are small The timing offset information in area notifies to give the Target cell.

Alternatively, the cell-of-origin is by high-level signaling, MAC PDU/CE, under physical layer control signaling or physical layer control Row channel sends a notification message to UE, wherein, the notification message is used to set the first community type and the second community type.

Alternatively, in the UE handoff procedures, cell-of-origin is not performed for the related operation of the up timing of the UE, its In, the operation includes：The cell-of-origin does not perform the measurement of timing advance of the UE, or, the cell-of-origin does not send the cell-of-origin The UE is given in TA orders.

Fig. 9 is a kind of acquisition device structural frames of up timing applied to Target cell according to embodiments of the present invention Figure, as shown in figure 9, the device includes：

Second receiving module 92 is small for before user equipment (UE) switches to Target cell by cell-of-origin, receiving the source The upward signal or the configuration information of up channel that area is sent；

Processing module 94, it is connected with the second receiving module 92, for according to the upward signal or up channel received TA orders are calculated, wherein, the upward signal or up channel are that descending timings of the UE based on first community is sent, should First community type includes the cell-of-origin or the Target cell；

4th sending module 96, it is connected with processing module 94, for timing advance TA orders to be sent to the UE, wherein, According to the TA orders that receive, the descending timing of second community and/or the cell-of-origin current timing advance value performs the UE Timing adjustment, the up timing of the Target cell is determined by the timing adjustment, wherein, it is small that the second community type includes the source Area or the Target cell.

Alternatively, the 4th sending module 96 is additionally operable to by Handover Request Acknowledge Handover Request Acknowledge or X2 sets response Setup Response to give TA orders notice to the cell-of-origin, wherein, the cell-of-origin The TA orders are transmitted to the UE.

Figure 10 is a kind of acquisition device structured flowchart of up timing according to embodiments of the present invention, and the device is applied to UE, as shown in Figure 10, the device include：

Computing module 1002, before user equipment (UE) switches to Target cell by cell-of-origin, the timing according to cell-of-origin The downstream signal that advance value, the cell-of-origin and the Target cell are sent simultaneously reaches the transmission time delay difference of the UE, and/or, source is small The timing advance TA of the Target cell is calculated in the timing offset of area and Target cell；

Second determining module 1004, is connected with computing module 1002, for determining the Target cell by the TA Row timing.

Alternatively, the device also includes：In the UE handoff procedures, the UE does not perform the up timing for the cell-of-origin The operation of adjustment, the operation include：The UE does not perform the timing advance order of cell-of-origin transmission, or, the UE and the source are small The timing advance value in area keeps constant, or, the up timing relationship of the UE and the cell-of-origin keeps constant.

It should be noted that above-mentioned modules can be realized by software or hardware, for the latter, Ke Yitong Cross in the following manner realization, but not limited to this：Above-mentioned module is respectively positioned in same processor；Or above-mentioned modules are with any The form of combination is located in different processors respectively.

Embodiment 3

Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can The program code for performing following steps to be arranged to storage to be used for：

S1, before user equipment (UE) switches to Target cell by cell-of-origin, the UE obtains upward signal or up channel Configuration information, descending timings of the UE based on first community send the upward signal or up channel to the Target cell and/ Or the cell-of-origin；

According to the timing advance TA orders received, the descending timing of second community and/or the cell-of-origin are current by S2, the UE Timing advance value determine the up timing of the Target cell, wherein, the TA orders are the Target cells according to the up letter Number or up channel be calculated, the first community type includes the cell-of-origin or the Target cell, the second community class Type includes the cell-of-origin or the Target cell.

Above-mentioned storage medium can be configured to the program code that storage is used to perform following steps：

S1, before user equipment (UE) switches to Target cell by cell-of-origin, the cell-of-origin sends upward signal or up The configuration information of channel is to UE；

S2, the cell-of-origin receive upward signal or up channel of UE transmissions, wherein, the upward signal or up letter Road is that descending timings of the UE based on first community is sent, and the first community type includes the cell-of-origin or the target is small Area；

S3, the cell-of-origin send timing advance TA orders to the UE, wherein, the TA orders that UE foundations receive, the The descending timing of two cells and/or the cell-of-origin current timing advance value performs timing adjustment, true by the timing adjustment The up timing of the fixed Target cell, wherein, the TA orders are that the Target cell calculates according to the upward signal or up channel Draw；The second community type includes the cell-of-origin or the Target cell.

S1, before user equipment (UE) switches to Target cell by cell-of-origin, the Target cell receives cell-of-origin transmission Upward signal or up channel configuration information；

TA orders are calculated according to the upward signal that receives or up channel in S2, the Target cell, wherein, on this Row signal or up channel are that descending timings of the UE based on first community is sent, and the first community type includes the cell-of-origin Or the Target cell；

S3, the Target cell send timing advance TA orders to the UE, wherein, the TA orders that UE foundations receive, The descending timing of second community and/or the cell-of-origin current timing advance value performs timing adjustment, passes through the timing adjustment The up timing of the Target cell is determined, wherein, the second community type includes the cell-of-origin or the Target cell.

Alternatively, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read-only storage (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. is various can be with the medium of store program codes.

Alternatively, in the present embodiment, processor performs above-mentioned implementation according to the program code stored in storage medium The method and step that example is recorded.

Alternatively, the specific example in the present embodiment may be referred to described in above-described embodiment and optional embodiment Example, the present embodiment will not be repeated here.

Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and formed Network on, alternatively, they can be realized with the program code that computing device can perform, it is thus possible to they are stored Performed in the storage device by computing device, and in some cases, can be with different from shown in order execution herein The step of going out or describing, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.

The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims

A kind of 1. acquisition methods of up timing, it is characterised in that including：

Before user equipment (UE) switches to Target cell by cell-of-origin, the UE obtains the configuration of upward signal or up channel Information, descending timings of the UE based on first community send the upward signal or up channel to the Target cell and/ Or the cell-of-origin；

The UE is according to the timing advance TA orders received, and the descending timing of second community and/or the cell-of-origin are currently Timing advance value determines the up timing of the Target cell, wherein, the TA orders are the Target cells according to described in What upward signal or up channel were calculated, the first community type includes the cell-of-origin or the Target cell, The second community type includes the cell-of-origin or the Target cell.
2. according to the method for claim 1, it is characterised in that the upward signal or up channel include one below： Sounding Reference Signal SRS, Physical Random Access Channel PRACH, or other upward signals or up channel.
3. according to the method for claim 1, it is characterised in that it is described transmission upward signal or up channel be SRS or In the case of the non-PRACH of person, methods described also includes：

Timing advance value Ns of the UE according to the cell-of-origin_TATo determine to send the upward signal or up channel to described Target cell and/or the delivery time of the cell-of-origin.
4. according to the method for claim 1, it is characterised in that be in the first community type and second community type In the case of cell-of-origin, methods described includes：

Before user equipment (UE) switches to Target cell by cell-of-origin, the UE obtains the configuration of upward signal or up channel Information, descending timings of the UE based on cell-of-origin send the upward signal or up channel to the Target cell and/or The cell-of-origin；

The UE is according to the timing advance TA orders received, the descending timing of cell-of-origin and/or the cell-of-origin determining currently When advance value determine the up timing of the Target cell, wherein, the TA orders are the Target cells according on described What row signal or up channel were calculated.
5. according to the method for claim 1, it is characterised in that in the first community type it is cell-of-origin, described second In the case that cell type is Target cell, methods described includes：

Before user equipment (UE) switches to Target cell by cell-of-origin, the UE obtains the configuration of upward signal or up channel Information, descending timings of the UE based on cell-of-origin send the upward signal or up channel to the Target cell and/or The cell-of-origin；

The UE is according to the timing advance TA orders received, and the descending timing of Target cell and/or the cell-of-origin are currently Timing advance value determines the up timing of the Target cell, wherein, the TA orders are the Target cells according to described in What upward signal or up channel were calculated.
6. according to the method for claim 1, it is characterised in that in the first community type it is Target cell, described the In the case that two cell types are Target cell, methods described includes：

Before user equipment (UE) switches to Target cell by cell-of-origin, the UE obtains the configuration of upward signal or up channel Information, descending timings of the UE based on Target cell send the upward signal or up channel to the Target cell and/ Or the cell-of-origin；

The UE is according to the timing advance TA orders received, and the descending timing of Target cell and/or the cell-of-origin are currently Timing advance value determines the up timing of the Target cell, wherein, the TA orders are the Target cells according to described in What upward signal or up channel were calculated.
7. according to the method for claim 1, it is characterised in that the timing advance TA orders that the UE foundations receive, the The descending timing of two cells and/or the cell-of-origin current timing advance value determines the up timing bag of the Target cell Include：

The TA orders are that the Target cell is calculated according to the upward signal or up channel, wherein, the mesh Mark cell and response Setup is set by Handover Request Acknowledge Handover Request Acknowledge or X2 Response notifies the TA orders to the cell-of-origin.
8. according to the method for claim 1, it is characterised in that the configuration information of the upward signal or up channel passes through One of three kinds of modes configuration below：

The cell-of-origin configuration, wherein, the cell-of-origin is set by handover request Handover Request or X2 and asked Setup Request are by the configuration notification to Target cell；Target cell configures；The cell-of-origin and Target cell association Business configures.
9. according to the method for claim 1, it is characterised in that the first community type and the second community type are equal Including：Cell-of-origin or Target cell；

The UE determines the first community type and the second community type according to one of in the following manner：According to notification message Or preset rules, wherein, the notification message sends for the cell-of-origin.
10. according to the method for claim 9, it is characterised in that the notification message is carried on the cell-of-origin and sent out to UE In the switching command sent, or, be carried on the configuration information of the upward signal or up channel, or with the upward signal Or the configuration information of up channel is sent together.
11. according to the method for claim 1, it is characterised in that methods described also includes：In the UE handoff procedures, The UE does not perform the operation of the up timing adjustment for the cell-of-origin, and the operation includes：

The UE does not perform the timing advance order that the cell-of-origin is sent, or, the UE and the timing of the cell-of-origin carry Preceding value keeps constant, or, the up timing relationship of the UE and the cell-of-origin keeps constant.
A kind of 12. acquisition methods of up timing, it is characterised in that including：

Before user equipment (UE) switches to Target cell by cell-of-origin, the cell-of-origin transmission upward signal or up channel Configuration information is to UE；

The cell-of-origin receives the upward signal or up channel that the UE is sent, wherein, the upward signal or up Channel is that descending timings of the UE based on first community is sent, and the first community type includes the cell-of-origin or institute State Target cell；

The cell-of-origin sends timing advance TA orders to the UE, wherein, the TA orders that the UE foundations receive, second The descending timing of cell and/or the cell-of-origin current timing advance value determines the up timing of the Target cell, its In, the TA orders are that the Target cell is calculated according to the upward signal or up channel；The second community Type includes the cell-of-origin or the Target cell.
13. according to the method for claim 12, it is characterised in that send upward signal or up channel in the cell-of-origin Configuration information to UE before, including：

The cell-of-origin sets request Setup Request to match somebody with somebody by described in by handover request Handover Request or X2 Confidence breath notice is to Target cell.
14. according to the method for claim 12, it is characterised in that receive that the UE sends in the cell-of-origin it is described on After row signal or up channel, the cell-of-origin will receive the temporal information of the transmission upward signal or up channel, And/or the cell-of-origin and the timing offset information of the Target cell are notified to the Target cell.
15. according to the method for claim 12, it is characterised in that the cell-of-origin is by high-level signaling, MAC PDU/CE, Physical layer control signaling or physical layer control down channel send a notification message to UE, wherein, the notification message is used to set Put the first community type and the second community type.
16. according to the method for claim 15, it is characterised in that the notification message is carried on the cell-of-origin and sent out to UE In the switching command sent, or, be carried on the configuration information of the upward signal or up channel, or with the upward signal Or the configuration information of up channel is sent together.
17. according to the method for claim 12, it is characterised in that in the UE handoff procedures, cell-of-origin does not perform pin The operation of up timing correlation to the UE, wherein, the operation includes：The timing that the cell-of-origin does not perform the UE carries Preceding measurement, or, the cell-of-origin does not send the TA orders of the cell-of-origin to the UE, or, the cell-of-origin with it is described UE up timing relationship keeps constant.
A kind of 18. acquisition methods of up timing, it is characterised in that including：

Before user equipment (UE) switches to Target cell by cell-of-origin, the Target cell receives the upper of the cell-of-origin transmission The configuration information of row signal or up channel；

TA orders are calculated according to the upward signal or up channel received in the Target cell, wherein, it is described on Row signal or up channel are that descending timings of the UE based on first community is sent, and the first community type includes described Cell-of-origin or the Target cell；

The Target cell sends timing advance TA orders to the UE, wherein, the TA orders that the UE foundations receive, the The descending timing of two cells and/or the cell-of-origin current timing advance value determines the up timing of the Target cell, Wherein, the second community type includes the cell-of-origin or the Target cell.
19. according to the method for claim 18, it is characterised in that the Target cell sends timing advance TA orders extremely The UE includes：

The Target cell is set by Handover Request Acknowledge Handover Request Acknowledge or X2 and responded Setup Response by the TA orders notify to the cell-of-origin, wherein, the TA orders are transmitted to by the cell-of-origin The UE.
A kind of 20. acquisition methods of up timing, it is characterised in that including：

Before user equipment (UE) switches to Target cell by cell-of-origin, timing advance values of the UE according to cell-of-origin is described The downstream signal that cell-of-origin and the Target cell are sent simultaneously reaches the transmission time delay difference of the UE, and/or, cell-of-origin and mesh The timing advance TA of the Target cell is calculated in the timing offset of mark cell；

The UE determines the up timing of the Target cell by the TA.
21. according to the method for claim 20, it is characterised in that methods described also includes：In the UE handoff procedures, The UE does not perform the operation of the up timing adjustment for the cell-of-origin, and the operation includes：

The UE does not perform the timing advance order that the cell-of-origin is sent, or, the UE and the timing of the cell-of-origin carry Preceding value keeps constant, or, the up timing relationship of the UE and the cell-of-origin keeps constant.
A kind of 22. acquisition device of up timing, applied to UE, it is characterised in that including：

First sending module, for before user equipment (UE) switches to Target cell by cell-of-origin, obtain upward signal or on The configuration information of row channel, and the descending timing based on first community sends the upward signal or up channel to the target Cell and/or the cell-of-origin；

First determining module, for according to the timing advance TA orders received, the descending timing of second community and/or the source The current timing advance value of cell determines the up timing of the Target cell, wherein, the TA orders are that the target is small Area is calculated according to the upward signal or up channel, and the first community type includes the cell-of-origin or described Target cell, the second community type include the cell-of-origin or the Target cell.
23. device according to claim 22, it is characterised in that the upward signal or up channel include it is following it One：Sounding Reference Signal SRS, Physical Random Access Channel PRACH or other upward signals or up channel.
24. device according to claim 22, it is characterised in that it is described transmission upward signal or up channel be SRS Or in the case of non-PRACH, first sending module is additionally operable to the timing advance value N according to the cell-of-origin_TATo determine The upward signal or up channel are sent to the Target cell and/or the delivery time of the cell-of-origin.
25. device according to claim 22, it is characterised in that equal in the first community type and second community type In the case of for cell-of-origin,

First sending module, is additionally operable to before user equipment (UE) switches to Target cell by cell-of-origin, obtains up letter Number or up channel configuration information, and descending timing based on cell-of-origin sends the upward signal or up channel to described Target cell and/or the cell-of-origin；

First determining module, it is additionally operable to according to the timing advance TA orders received, the descending timing of cell-of-origin and/or institute The current timing advance value in cell-of-origin is stated to determine the up timing of the Target cell, wherein, the TA orders are the mesh Mark cell is calculated according to the upward signal or up channel.
26. device according to claim 22, it is characterised in that in the first community type it is cell-of-origin, described In the case that two cell types are Target cell,

First sending module, is additionally operable to before user equipment (UE) switches to Target cell by cell-of-origin, obtains up letter Number or up channel configuration information, and descending timing based on cell-of-origin sends the upward signal or up channel to described Target cell and/or the cell-of-origin；

First determining module, be additionally operable to according to the timing advance TA orders that receive, the descending timing of Target cell and/or The current timing advance value in the cell-of-origin determines the up timing of the Target cell, wherein, the TA orders are described Target cell is calculated according to the upward signal or up channel.
27. device according to claim 22, it is characterised in that in the first community type it is Target cell, it is described In the case that second community type is Target cell,

First sending module, is additionally operable to before user equipment (UE) switches to Target cell by cell-of-origin, obtains up letter Number or up channel configuration information, and descending timing based on Target cell sends the upward signal or up channel to institute State Target cell and/or the cell-of-origin；

First determining module, be additionally operable to according to the timing advance TA orders that receive, the descending timing of Target cell and/or The current timing advance value in the cell-of-origin determines the up timing of the Target cell, wherein, the TA orders are described Target cell is calculated according to the upward signal or up channel.
28. device according to claim 22, it is characterised in that the timing advance TA orders that the UE foundations receive, The descending timing of second community and/or the cell-of-origin current timing advance value determines the up fixed of the Target cell When include：

The TA orders are that the Target cell is calculated according to the upward signal or up channel, wherein, the mesh Mark cell and response Setup is set by Handover Request Acknowledge Handover Request Acknowledge or X2 Response notifies the TA orders to the cell-of-origin.
29. device according to claim 22, it is characterised in that the configuration information of the upward signal or up channel leads to Following three kinds of modes are crossed to configure：

The cell-of-origin configuration, wherein, the cell-of-origin is set by handover request Handover Request or X2 and asked Setup Request are by the configuration notification to Target cell；Target cell configures；The cell-of-origin and Target cell association Business configures.
30. device according to claim 22, it is characterised in that the first community type and the second community type Include：Cell-of-origin or Target cell；

The UE determines the first community type and the second community type according to one of in the following manner：According to notification message Or preset rules, wherein, the notification message sends for the cell-of-origin.
31. device according to claim 30, it is characterised in that the notification message is carried on the cell-of-origin and sent out to UE In the switching command sent, or, be carried on the configuration information of the upward signal or up channel, or with the upward signal Or the configuration information of up channel is sent together.
32. device according to claim 22, it is characterised in that in the UE handoff procedures, the UE does not perform pin Operation to the up timing adjustment of the cell-of-origin, the operation include：

The UE does not perform the timing advance order that the cell-of-origin is sent, and/or, the UE and the timing of the cell-of-origin carry Preceding value keeps constant.
A kind of 33. acquisition device of up timing, applied to cell-of-origin, it is characterised in that including：

Second sending module, for before user equipment (UE) switches to Target cell by cell-of-origin, send upward signal or on The configuration information of row channel is to UE；

First receiving module, the upward signal or up channel sent for receiving the UE, wherein, the upward signal Or up channel is that descending timings of the UE based on first community is sent, the first community type includes the cell-of-origin Or the Target cell；

3rd sending module, for timing advance TA orders to be sent to the UE, wherein, the UE is according to the TA lives received Order, the descending timing of second community and/or the cell-of-origin current timing advance value determine the up of the Target cell Regularly, wherein, the TA orders are that the Target cell is calculated according to the upward signal or up channel；Described Two cell types include the cell-of-origin or the Target cell.
34. device according to claim 33, it is characterised in that send upward signal or up channel in the cell-of-origin Configuration information to UE before, the cell-of-origin pass through handover request Handover Request or X2 set request Setup Request notifies the configuration information to Target cell.
35. device according to claim 33, it is characterised in that first receiving module is additionally operable in the cell-of-origin After receiving the upward signal or up channel that the UE is sent, the transmission upward signal or up channel will be received Temporal information, and/or, the timing offset information of the cell-of-origin and the Target cell is notified to the Target cell.
36. device according to claim 33, it is characterised in that the cell-of-origin is by high-level signaling, MAC PDU/CE, Physical layer control signaling or physical layer control down channel send a notification message to UE, wherein, the notification message is used to set Put the first community type and the second community type.
37. device according to claim 36, it is characterised in that the notification message is carried on the cell-of-origin and sent out to UE In the switching command sent, or, be carried on the configuration information of the upward signal or up channel, or with the upward signal Or the configuration information of up channel is sent together.
38. device according to claim 33, it is characterised in that in the UE handoff procedures, cell-of-origin does not perform pin The operation of up timing correlation to the UE, wherein, the operation includes：The timing that the cell-of-origin does not perform the UE carries Preceding measurement, or, the cell-of-origin does not send the TA orders of the cell-of-origin to the UE.
A kind of 39. acquisition device of up timing, applied to Target cell, it is characterised in that including：

Second receiving module, for before user equipment (UE) switches to Target cell by cell-of-origin, receiving the cell-of-origin hair The upward signal or the configuration information of up channel sent；

Processing module, for TA orders to be calculated according to the upward signal or up channel that receive, wherein, it is described on Row signal or up channel are that descending timings of the UE based on first community is sent, and the first community type includes described Cell-of-origin or the Target cell；

4th sending module, for timing advance TA orders to be sent to the UE, wherein, the UE is according to the TA lives received Order, the descending timing of second community and/or the cell-of-origin current timing advance value determine the up of the Target cell Regularly, wherein, the second community type includes the cell-of-origin or the Target cell.
40. the device according to claim 39, it is characterised in that the 4th sending module is additionally operable to pass through handover request Confirm that Handover Request Acknowledge or X2 set response Setup Response to notify the TA orders To the cell-of-origin, wherein, the TA orders are transmitted to the UE by the cell-of-origin.
A kind of 41. acquisition device of up timing, applied to UE, it is characterised in that including：

Computing module, before user equipment (UE) switches to Target cell by cell-of-origin, according to the timing advance value of cell-of-origin, institute The downstream signal stated cell-of-origin and the Target cell while sent reaches the transmission time delay difference of the UE, and/or, cell-of-origin and The timing advance TA of the Target cell is calculated in the timing offset of Target cell；

Second determining module, for determining the up timing of the Target cell by the TA.
42. device according to claim 41, it is characterised in that described device also includes：In the UE handoff procedures, The UE does not perform the operation of the up timing adjustment for the cell-of-origin, and the operation includes：

The UE does not perform the timing advance order that the cell-of-origin is sent, or, the UE and the timing of the cell-of-origin carry Preceding value keeps constant, or, the up timing relationship of the UE and the cell-of-origin keeps constant.