CN107105496A - A kind of method and device, system for obtaining, returning to uplink timing advance - Google Patents

A kind of method and device, system for obtaining, returning to uplink timing advance Download PDF

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Publication number
CN107105496A
CN107105496A CN201610095127.5A CN201610095127A CN107105496A CN 107105496 A CN107105496 A CN 107105496A CN 201610095127 A CN201610095127 A CN 201610095127A CN 107105496 A CN107105496 A CN 107105496A
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CN
China
Prior art keywords
timing advance
terminal
point
uplink timing
network side
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Granted
Application number
CN201610095127.5A
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Chinese (zh)
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CN107105496B (en
Inventor
谌丽
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China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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Priority to CN201610095127.5A priority Critical patent/CN107105496B/en
Priority to PCT/CN2017/071003 priority patent/WO2017140195A1/en
Publication of CN107105496A publication Critical patent/CN107105496A/en
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Publication of CN107105496B publication Critical patent/CN107105496B/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/121—Wireless traffic scheduling for groups of terminals or users
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0025—Synchronization between nodes synchronizing potentially movable access points
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
    • H04W56/0065—Synchronisation arrangements determining timing error of reception due to propagation delay using measurement of signal travel time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1221—Wireless traffic scheduling based on age of data to be sent
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a kind of method and device, system for obtaining, returning to uplink timing advance, including：When obtaining uplink timing advance, determine that terminal needs to transmit the object transmission point of data；Initiate to obtain the request of uplink timing advance to network side；The message for carrying uplink timing advance returned according to network side determines the terminal to the uplink timing advance needed for object transmission point transmission data.When returning to uplink timing advance, the request for the acquisition uplink timing advance that receiving terminal is initiated to network side；Determine terminal to the uplink timing advance needed for object transmission point transmission data；The message for carrying the uplink timing advance is returned to terminal.Using this programme, even if the selected transfer point of terminal did not had any data or signalling at a upper moment and terminal, the uplink timing advance of the transfer point can also be obtained, so that terminal can effectively realize uplink when terminal flexibly selects transfer point.

Description

A kind of method and device, system for obtaining, returning to uplink timing advance
Technical field
It is more particularly to a kind of to obtain, return to uplink timing advance the present invention relates to wireless communication technology field Method and device, system.
Background technology
In a wireless communication system, signal transmission will have certain by path of eating dishes without rice or wine at the time of reaching receiving terminal Delay.Wireless communication system is transmitted using defined frame structure, for up (terminal to network side biography Defeated point) to transmit, multiple terminals, because path difference has different propagation delay times, are when up-link is transmitted Realize that transmitting terminal is consistent with receiving terminal timing relationship, so that the up biography of the different terminals from same cell It is not interfere with each other between defeated, transmitting terminal needs certain Timing Advance.Fig. 1 shows for uplink timing advance It is intended to, as illustrated, in order that base station is in T0 reception uplink, terminal 1 needs regularly to carry Preceding amount TA1 sends uplink, and terminal 2 needs to send uplink with timing advance TA 2.
By taking LTE (Long Term Evolution, Long Term Evolution) system as an example, base station side is by measuring eventually Hold upward signal or uplink, the timing advance TA (Timing needed for estimation terminal uplink transmission Advance, Timing Advance), pass through TAC (Timing Advance Command, time alignment order) Terminal uplink transmission timing adjustment is notified, and is terminal configuration TAT (Timing Advance Timer, time Alignment timer) restricted T AC effective times, if TAT time-out does not receive new TAC also, recognize For terminal uplink step-out, it is impossible to send uplink.
The deficiencies in the prior art are：When selecting suitable transfer point to be transmitted by terminal, if terminal Selected transfer point did not had any data or signalling at a upper moment and terminal, and LTE system is this Actively measure and notify that the mode of terminal uplink Timing Advance will be no longer feasible by base station.
The content of the invention
The invention provides a kind of method and device, system for obtaining, returning to uplink timing advance, it is used to There is provided when selecting suitable transfer point to be transmitted by terminal, terminal obtains the side of uplink timing advance Case.
A kind of method for obtaining uplink timing advance is provided in the embodiment of the present invention, including：
Determine that terminal needs to transmit the object transmission point of data；
Initiate to obtain the request of uplink timing advance to network side, the uplink timing advance is the end Hold the uplink timing advance needed for transmitting data to the object transmission point；
The message for carrying uplink timing advance returned according to network side determines that the terminal is passed to the target Uplink timing advance needed for defeated point transmission data.
It is preferred that being to following network side when initiating to obtain the request of uplink timing advance to network side One of entity is initiated：
Object transmission point, current transmission point and object transmission point belong to the transfer point with group, wherein, institute It is to be determined according to terminal to the uplink timing advance used when belonging to the transfer point transmission data with group to state group , current transmission point is the transfer point currently carried out data transmission with terminal.
One of it is preferred that pair each transfer point carried out data transmission with terminal is grouped, including in the following manner Or its combination：
After network side is by the transfer point for determining with terminal to carry out data transmission in region, according to terminal Uplink timing advance needed for carrying out data transmission with each transmission point is grouped to transfer point；
After terminal feeds back the transfer point that may carry out data transmission with terminal to network side, according to terminal with Uplink timing advance needed for each transmission point carries out data transmission is grouped to transfer point；
Possible transfer point in current region is searched in terminal, the downstream signal of each transfer point is measured, according to It is grouped after downstream signal estimation uplink timing advance.
It is preferred that further comprising one of in the following manner or its combination：
Start Timing Advance after the message for carrying uplink timing advance of network side return is received Timer, restarts Timing Advance timer, Timing Advance is fixed when receiving new Timing Advance When device time-out then initiate obtain uplink timing advance request；
When terminal is moved, Timing Advance is adjusted according to the distance of object transmission point；
In the change of object transmission point transmission characteristic, or during the change of object transmission point, initiate to obtain up timing The request of lead.
It is preferred that the Timing Advance timer is：The Timing Advance timer received from network side, Or using Timing Advance timer as defined in agreement, or in the Timing Advance timer of terminal built-in.
A kind of method for returning to uplink timing advance is provided in the embodiment of the present invention, including：
The request for the acquisition uplink timing advance that receiving terminal is initiated to network side, the up timing is carried Preceding amount is the uplink timing advance needed for the terminal transmits data to object transmission point；
Determine terminal to the uplink timing advance needed for object transmission point transmission data；
The message for carrying the uplink timing advance is returned to terminal.
It is preferred that receiving terminal to network side initiate acquisition uplink timing advance request when, be as What one of lower network side entity was received：
Object transmission point, current transmission point and object transmission point belong to the transfer point with group, wherein, institute It is to be determined according to terminal to the uplink timing advance used when belonging to the transfer point transmission data with group to state group , current transmission point is the transfer point currently carried out data transmission with terminal.
One of it is preferred that pair each transfer point carried out data transmission with terminal is grouped, including in the following manner Or its combination：
After network side is by the transfer point for determining with terminal to carry out data transmission in region, according to terminal Uplink timing advance needed for carrying out data transmission with each transmission point is grouped to transfer point；
After terminal feeds back the transfer point that may carry out data transmission with terminal to network side, according to terminal with Uplink timing advance needed for each transmission point carries out data transmission is grouped to transfer point；
Possible transfer point in current region is searched in terminal, the downstream signal of each transfer point is measured, according to It is grouped after downstream signal estimation uplink timing advance.
It is preferred that being object transmission point receiving acquisition uplink timing advance request, and returned to terminal When the network side equipment for carrying the message of uplink timing advance is current transmission point, current transmission point is Determine terminal to the uplink timing advance needed for object transmission point transmission data by object transmission point 's.
It is preferred that further comprising：The effective time for carrying the uplink timing advance is returned to terminal Message.
It is preferred that terminal is determined to the uplink timing advance needed for object transmission point transmission data, including One of in the following manner or its combination：
When it is object transmission point to receive the network side equipment for obtaining uplink timing advance request, according to right The measured value that the uplink reference signals or upstream signals that the terminal is sent are carried out is determined；
When it is not object transmission point to receive the network side equipment for obtaining uplink timing advance request, according to The terminal is to the Timing Advance of current transmission point, and object transmission point to terminal or object transmission point are to currently The distance of transfer point, and one of the transmission frequency of object transmission point or its combination determine, wherein, when Preceding transfer point is to receive the network side equipment for obtaining uplink timing advance request.
It is preferred that further comprising：After network side determines uplink timing advance change, it is determined that after change Uplink timing advance；
Uplink timing advance order is sent to terminal；
The uplink timing advance after change is enabled with terminal, and restarts Timing Advance timer.
A kind of device for obtaining uplink timing advance is provided in the embodiment of the present invention, including：
Transfer point determining module, for determining that terminal needs to transmit the object transmission point of data；
Request module, for initiating to obtain the request of uplink timing advance, the up timing to network side Lead is the uplink timing advance needed for the terminal transmits data to the object transmission point；
Lead determining module, the message for carrying uplink timing advance for being returned according to network side is true Determine the uplink timing advance needed for the terminal transmits data to the object transmission point.
It is preferred that request module is further used for carrying to the up timing of one of following network side entity initiation acquisition The request of preceding amount：
Object transmission point, current transmission point and object transmission point belong to the transfer point with group, wherein, it is described Group is to be determined according to terminal to the uplink timing advance used when belonging to the transfer point transmission data with group, Current transmission point is the transfer point currently carried out data transmission with terminal.
It is preferred that request module is further used for initiating to obtain to the transfer point for belonging to same group with object transmission point When taking the request of uplink timing advance, described group is in the way of including one of in the following manner or its combination It is grouped：
After network side in region by the transfer point that may carry out data transmission with terminal is determined, according to terminal with Uplink timing advance needed for each transmission point carries out data transmission is grouped to transfer point；
After terminal feeds back the transfer point that may carry out data transmission with terminal to network side, according to terminal and often Uplink timing advance needed for individual transfer point carries out data transmission is grouped to transfer point；
Possible transfer point in current region is searched in terminal, the downstream signal of each transfer point is measured, under It is grouped after row signal estimation uplink timing advance.
It is preferred that further comprising：Maintenance module, for one of in the following manner or its combination is safeguarded Row Timing Advance：
Start Timing Advance after the message for carrying uplink timing advance of network side return is received Timer, Timing Advance timer, Timing Advance timing are restarted when receiving new Timing Advance Device time-out is then initiated to obtain the request of uplink timing advance；
When terminal is moved, Timing Advance is adjusted according to the distance of object transmission point；
In the change of object transmission point transmission characteristic, or during the change of object transmission point, initiate the up timing of acquisition and carry The request of preceding amount.
It is preferred that the Timing Advance timer is：The Timing Advance timer received from network side, Or using Timing Advance timer as defined in agreement, or in the Timing Advance timer of terminal built-in.
A kind of system for returning to uplink timing advance is provided in the embodiment of the present invention, including：
Receiving module, the request for the acquisition uplink timing advance initiated for receiving terminal to network side, institute It is the uplink timing advance needed for the terminal transmits data to object transmission point to state uplink timing advance；
Determining module, for determining terminal to the up timing advance needed for object transmission point transmission data Amount；
Module is returned, the message of the uplink timing advance is carried for being returned to terminal.
It is preferred that receiving module is located at one of following network side entity：
Object transmission point, current transmission point and object transmission point belong to the transfer point with group, wherein, it is described Group is to be determined according to terminal to the uplink timing advance used when belonging to the transfer point transmission data with group, Current transmission point is the transfer point currently carried out data transmission with terminal.
It is preferred that further comprising：Grouping module, for by including one of in the following manner or its combination pair Each transfer point carried out data transmission with terminal is grouped：
After network side in region by the transfer point that may carry out data transmission with terminal is determined, according to terminal with Uplink timing advance needed for each transmission point carries out data transmission is grouped to transfer point；
After terminal feeds back the transfer point that may carry out data transmission with terminal to network side, according to terminal and often Uplink timing advance needed for individual transfer point carries out data transmission is grouped to transfer point；
Possible transfer point in current region is searched in terminal, the downstream signal of each transfer point is measured, under It is grouped after row signal estimation uplink timing advance.
It is preferred that determining module is located at current transmission point, it is further used for being located at object transmission in receiving module Point, and module is returned positioned at when being current transmission point, determine that terminal is passed to the target by object transmission point Uplink timing advance needed for defeated point transmission data.
Having for the uplink timing advance is carried it is preferred that returning to module and being further used for returning to terminal Imitate the message of duration.
It is preferred that determining module is further used for one of in the following manner or its combination determines terminal to the mesh Mark the uplink timing advance needed for transfer point transmission data：
When it is object transmission point to receive the network side equipment for obtaining uplink timing advance request, according to this The measured value that the uplink reference signals or upstream signals that terminal is sent are carried out is determined；
When it is not object transmission point to receive the network side equipment for obtaining uplink timing advance request, according to this Terminal is to the Timing Advance of current transmission point, object transmission point to terminal or object transmission point to current transmission The distance of point, and one of the transmission frequency of object transmission point or its combination determine, wherein, current transmission Point is to receive the network side equipment for obtaining uplink timing advance request.
It is preferred that further comprising：Update module, for determining that uplink timing advance is changed in network side Afterwards, it is determined that change after uplink timing advance；Uplink timing advance order is sent to terminal；With terminal The uplink timing advance after change is enabled, and restarts Timing Advance timer.
The present invention has the beneficial effect that：
In technical scheme provided in an embodiment of the present invention, by end side it is determined that terminal needs to transmit data After object transmission point, initiate to obtain the request of uplink timing advance to network side, and returned according to network side Message determine needed for uplink timing advance.
And in network side, after the request of acquisition uplink timing advance of terminal is received, determine terminal to Uplink timing advance needed for object transmission point transmission data, and returned to terminal.
It can be seen that, during the multi-link communication centered on terminal, suitable transfer point is being selected by terminal When being transmitted, even if the selected transfer point of terminal did not had any data or letter at a upper moment and terminal Order transmission, the uplink timing advance of the transfer point can also be obtained using this programme, so that terminal energy Enough uplink effectively realized when terminal flexibly selects transfer point.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes one of the present invention Point, schematic description and description of the invention is used to explain the present invention, does not constitute to the present invention not Work as restriction.In the accompanying drawings：
Fig. 1 is uplink timing advance schematic diagram in background technology；
Fig. 2 is the method implementing procedure signal of acquisition uplink timing advance in end side in the embodiment of the present invention Figure；
Fig. 3 is the method implementing procedure signal of network side return uplink timing advance in the embodiment of the present invention Figure；
Fig. 4 is Timing Advance packet schematic diagram in the embodiment of the present invention；
Fig. 5 is the implementation process diagram of embodiment one of terminal acquisition Timing Advance in the embodiment of the present invention；
Fig. 6 is the implementation process diagram of embodiment two of terminal acquisition Timing Advance in the embodiment of the present invention；
Fig. 7 is the implementation process diagram of embodiment three of terminal acquisition Timing Advance in the embodiment of the present invention；
Fig. 8 is the apparatus structure schematic diagram of acquisition uplink timing advance in the embodiment of the present invention；
Fig. 9 is the system structure diagram of return uplink timing advance in the embodiment of the present invention；
Figure 10 is terminal structure schematic diagram in the embodiment of the present invention；
Figure 11 is network side equipment structural representation in the embodiment of the present invention.
Embodiment
The embodiment to the present invention is illustrated below in conjunction with the accompanying drawings.
Inventor notices during invention：
Future broadband wireless communication systems are to include the end-to-end ecosystem of various kinds of equipment.Need to have than 4G more High performance, supports 0.1~1Gbps Consumer's Experience speed, and every square kilometre 1,000,000 of connection number is close Spend, the end-to-end time delay of Millisecond, every square kilometre of tens of Tbps flux density, per hour 500Km The peak rate of mobility above and tens of Gbps.Future wireless system various wireless communication system is a large amount of Coexist, terminal can simultaneously from multiple transmission under different wireless communication systems or same wireless communication system Point keeps communication connection and transmitted.Transfer point positions different from the network side that terminal is wirelessly transferred are different, Frequency is different, and uplink timing advance also has difference.During the multi-link communication centered on terminal, Suitable transfer point is selected to be transmitted by terminal, the selected transfer point of terminal was likely at a upper moment There is no any data or signalling with terminal, therefore, LTE system is this actively to be measured and notified by base station The mode of terminal uplink Timing Advance is no longer feasible.
Based on this there is provided a kind of method and device for obtaining, returning to uplink timing advance, in scheme, It will initiate to obtain uplink timing advance mistake as needed to network side by selecting network side transfer point Journey.Terminal is then estimated to the Timing Advance of object transmission point in network side, and notifies the terminal timing advance Measure information.It is specifically described below.
In declarative procedure, the implementation respectively from end side and network side is illustrated, wherein end side will The process that main explanation is obtained, network side returns to main explanation the process of uplink timing advance, then also The implementation of the two scheme for coordinating the example implemented to be provided to more fully understand in the embodiment of the present invention will be provided. Such explanation mode is not meant to that the two must coordinate implementation or must individually implement, in fact, When end side and network side are performed separately, the problem of it also each solves end side, network side, and the two During combined use, superior technique effect can be obtained.
Fig. 2 is the method implementation process diagram that end side obtains uplink timing advance, as illustrated, can With including：
Step 201, determine terminal need transmit data object transmission point；
Step 202, the request to network side initiation acquisition uplink timing advance, the up timing advance Amount is the uplink timing advance needed for the terminal transmits data to the object transmission point；
Step 203, the message for carrying uplink timing advance returned according to network side determine the terminal to Uplink timing advance needed for object transmission point transmission data.
Fig. 3 is the method implementation process diagram that network side returns to uplink timing advance, as illustrated, can With including：
Step 301, receiving terminal to network side initiate acquisition uplink timing advance request, it is described on Row Timing Advance is the uplink timing advance needed for the terminal transmits data to object transmission point；
Step 302, determine terminal to the object transmission point transmit data needed for uplink timing advance；
Step 303, returned to terminal and carry the message of the uplink timing advance.
First the entity device of implementation is illustrated below,
The request that acquisition uplink timing advance is initiated to network side is terminal, accordingly, in receiving terminal It is that one of following network side entity is received during the request for the acquisition uplink timing advance initiated to network side 's：
Object transmission point, current transmission point and object transmission point belong to the transfer point with group, wherein, it is described Group is to be determined according to terminal to the uplink timing advance used when belonging to the transfer point transmission data with group, Current transmission point is the transfer point currently carried out data transmission with terminal.
The implementation that the transfer point based on Timing Advance is grouped is illustrated below.
When terminal has multiple transmission point, the difference based on TP (transmission point, transfer point) is special Property (such as transfer point position, the transmission frequency of transfer point) may have different uplink timing advances.This Sample, can be divided into one group by Timing Advance identical transfer point.
Fig. 4 is that Timing Advance is grouped schematic diagram, will be so according to uplink timing advance for ease of statement The packet of progress is referred to as TA groups, as shown in figure 4, TP1 is the wide covering transfer point using lower frequency, Belong to TA groups 1；TP2 and TP3 have identical Timing Advance, belong to TA groups 2；TP4 and TP5 has identical Timing Advance, belongs to TA groups 3.Terminal is only needed to and one in a TA group Individual transfer point keeps uplink synchronous just to realize the uplink synchronous to all transfer points in TA groups.
In specific implementation, pair each transfer point carried out data transmission with terminal is grouped, and can be included following One of mode or its combination：
Mode 1：
After network side in region by the transfer point that may carry out data transmission with terminal is determined, according to terminal with Uplink timing advance needed for each transmission point carries out data transmission is grouped to transfer point.
Drawn specifically, the transfer point that may be transmitted in certain area with terminal is carried out TA groups by network side Point, and terminal is notified, advice method is that unicast notifies to broadcast terminal in all regions in single terminal or region.
Mode 2：
After terminal feeds back the transfer point that may carry out data transmission with terminal to network side, according to terminal and often Uplink timing advance needed for individual transfer point carries out data transmission is grouped to transfer point.
Specifically, terminal searches possible transfer point in current region, passed to current transmission point feedback is possible Defeated point list, network side may transmit point list according to this and carry out TA packets, and notify the terminal.
Mode 3：
Possible transfer point in current region is searched in terminal, the downstream signal of each transfer point is measured, under It is grouped after row signal estimation uplink timing advance.
Specifically, terminal searches possible transfer point in current region, the downstream signal of transfer point, root are measured Estimate uplink characteristic according to downstream signal, carry out TA packets, this mode can be by terminal maintenance TA Packet.
(object transmission point, current transmission point, belong to below for above-mentioned network side entity with object transmission point With the transfer point of group), the embodiment that terminal gets the Timing Advance of transfer point is illustrated with example. In example, it can further include：
The message for the effective time for carrying uplink timing advance is returned to terminal.
Mode 1：
Step one：Terminal selection target transfer point, is confirmed whether to have object transmission point (or object transmission point Affiliated TA groups) Timing Advance, if not provided, initiating to obtain object transmission point (or mesh to network side Mark transfer point TA groups) process of Timing Advance, it is specifically as follows and sends request message in current transmission point, Object transmission point TP ID (transmission period) or TAG ID (transfer point group number) are carried in request message；
Step 2：Current transmission point reception request message, network side estimation terminal to object transmission point (or mesh Mark transfer point TA groups) Timing Advance；
Step 3：Terminal is sent to end to the Timing Advance information of object transmission point by current transmission point End, it is alternatively possible to send Timing Advance effective time TAT simultaneously.
Mode 2：
Step one：Terminal selection target transfer point, is confirmed whether to have object transmission point (or object transmission point Affiliated TA groups) Timing Advance, if not provided, initiating to obtain object transmission point (or mesh to network side Mark transfer point TA groups) process of Timing Advance is specially to belonging to object transmission point or object transmission point Other transfer points of TA groups send uplink detection signal；
Step 2：Other transfer point receiving terminals of object transmission point or the affiliated TA groups of object transmission point are sent Uplink detection signal, according to detectable signal calculate uplink timing advance；
Step 3：By object transmission point or other transfer points or current transmission of the affiliated TA groups of object transmission point Terminal to the Timing Advance information of object transmission point is sent to terminal by point, it is alternatively possible to send simultaneously Timing Advance effective time TAT.
The implementation to estimating Timing Advance in network side is illustrated below, that is, being received in network side After the Timing Advance request that terminal is sent, by following several ways terminal can be estimated to object transmission point Timing Advance.
In implementation, determine terminal transmit data to the object transmission point needed for uplink timing advance, can be with Including one of in the following manner or its combination：
When it is object transmission point to receive the network side equipment for obtaining uplink timing advance request, according to this The measured value that the uplink reference signals or upstream signals that terminal is sent are carried out is determined.
Specifically, uplink reference signals that object transmission point receiving terminal is sent or uplink and being surveyed Amount, Timing Advance is worth to according to the measurement.
When it is not object transmission point to receive the network side equipment for obtaining uplink timing advance request, according to this Terminal is to the Timing Advance of current transmission point, object transmission point to terminal or object transmission point to current transmission The distance of point, and one of the transmission frequency of object transmission point or its combination determine, wherein, current transmission Point is to receive the network side equipment for obtaining uplink timing advance request.
Specifically, Timing Advance of the network side according to terminal to current transmission point, combining target transfer point is arrived The distance of terminal or current transmission point, and object transmission point transmission frequency, estimation terminal is to object transmission The Timing Advance of point.
When Timing Advance may change, such as terminal location change, target TP positions are changed, target , it is necessary to initiate Timing Advance renewal when TP changes, TAT are overtime.With reference to example to timing advance The implementation of the maintenance of amount is illustrated.
1st, in the renewal of end side
In implementation, when the object transmission point Timing Advance that end-on is received is safeguarded, it can also enter One step includes one of in the following manner or its combination：
Start Timing Advance after the message for carrying uplink timing advance of network side return is received Timer, Timing Advance timer, Timing Advance timing are restarted when receiving new Timing Advance Device time-out is then initiated to obtain the request of uplink timing advance；
In specific implementation, Timing Advance timer can be：The Timing Advance timing received from network side Device, or using Timing Advance timer as defined in agreement, or in the Timing Advance timer of terminal built-in.
Specifically, from network side receive TAT or using agreement provide or terminal built-in TAT, receive calmly When lead when start TAT, restart TAT when receiving new TAC, TAT time-out then timing advance Amount failure is, it is necessary to reacquire.
When terminal is moved, Timing Advance is adjusted according to the distance of object transmission point；
In the change of object transmission point transmission characteristic, or during the change of object transmission point, initiate the up timing of acquisition and carry The request of preceding amount；
Specifically, if object transmission point transmission characteristic (such as frequency, position) changed, or object transmission point During change, Timing Advance acquisition process is restarted.
The implementation that end side triggering Timing Advance updates is illustrated with example below.
Step one：End side determines to need to carry out TA renewals, and trigger condition is terminal location change, target TP changes, TAT time-out；
Step 2：Terminal initiate Timing Advance acquisition process and update currently stored Timing Advance and TA timers.
2nd, in the renewal of network side
, can be with when network side is safeguarded to the object transmission point Timing Advance received in implementation Further comprise：
After network side determines uplink timing advance change, it is determined that the uplink timing advance after change；
Uplink timing advance order is sent to terminal；
The uplink timing advance after change is enabled with terminal, and restarts Timing Advance timer.
The implementation that network side triggering Timing Advance updates is illustrated with example below.
Step one：Network side determines that TA is changed and calculated new TA values, and trigger condition is target TP positions Change, or TAT time-out, or the upward signal of measuring terminals or transmission obtain TA value changes；
Step 2：New TA orders, network side and terminal applies occur to terminal for current TP or target TP All restart TAT during new TA values.
Illustrated below with example.
Embodiment one：
Fig. 5 is the implementation process diagram of embodiment one that terminal obtains Timing Advance, as illustrated, can be with Including：
Step 501：Terminal sends the request message for obtaining TA to current TP.
In implementation, terminal selection target transfer point is confirmed whether to have object transmission point (or object transmission point Affiliated TA groups) Timing Advance, if not provided, initiating to obtain object transmission point (or mesh to network side Mark transfer point TA groups) process of Timing Advance, it is specially to send request message in current transmission point, please Ask and object transmission point TP ID (transmission period) or TAG ID (transfer point group number) are carried in message.
Step 502：Network side estimation target TP TA values.
In implementation, current transmission point reception request message, network side estimation terminal to object transmission point (or mesh Mark transfer point TA groups) Timing Advance.
Step 503：Current TP sends target TP TA values to terminal.
In implementation, terminal is sent to end to the Timing Advance information of object transmission point by current transmission point End, it is alternatively possible to send Timing Advance effective time TAT simultaneously.
Embodiment two：
Fig. 6 is the implementation process diagram of embodiment two that terminal obtains Timing Advance, as illustrated, can be with Including：
Step 601：Terminal sends detectable signal to target TP.
In implementation, terminal selection target transfer point is confirmed whether to have object transmission point (or object transmission point Affiliated TA groups) Timing Advance, if not provided, initiating to obtain object transmission point (or mesh to network side Mark transfer point TA groups) process of Timing Advance, it is specifically as follows to object transmission point or object transmission point Other object transmission points of affiliated TA groups send uplink detection signal.
Step 602：Target TP calculates TA values.
In implementation, other object transmission point receiving terminals of object transmission point or the affiliated TA groups of object transmission point The uplink detection signal of transmission, uplink timing advance is calculated according to detectable signal.
Step 603：Target TP sends target TP TA values to terminal.
In implementation, by object transmission point or other object transmission points of the affiliated TA groups of object transmission point by terminal Timing Advance information to object transmission point is sent to terminal, is regularly carried it is alternatively possible to send this simultaneously Preceding amount effective time TAT.
Embodiment three：
Fig. 7 is the implementation process diagram of embodiment three that terminal obtains Timing Advance, as illustrated, can be with Including：
Step 701：Terminal sends detectable signal to target TP.
In implementation, terminal selection target transfer point is confirmed whether to have object transmission point (or object transmission point Affiliated TA groups) Timing Advance, if not provided, initiating to obtain object transmission point (or mesh to network side Mark transfer point TA groups) process of Timing Advance, it is specifically as follows to object transmission point or object transmission point Other object transmission points of affiliated TA groups send uplink detection signal.
Step 702：Target TP calculates TA values.
In implementation, other object transmission point receiving terminals of object transmission point or the affiliated TA groups of object transmission point The uplink detection signal of transmission, uplink timing advance is calculated according to detectable signal.
Step 703：Current TP obtains TA values.
In implementation, object transmission point (or transfer point of object transmission point group) interacted with current TP TA and TAT information.
Step 704：Current TP sends target TP TA values to terminal.
In implementation, terminal is sent to end to the Timing Advance information of object transmission point by current transmission point End, it is alternatively possible to send Timing Advance effective time TAT simultaneously.
Based on same inventive concept, a kind of acquisition uplink timing advance is additionally provided in the embodiment of the present invention Device, a kind of system of return uplink timing advance, because these devices solve the principle and one kind of problem Method, a kind of method of return uplink timing advance for obtaining uplink timing advance are similar, therefore these The implementation of device may refer to the implementation of method, repeats part and repeats no more.
Fig. 8 is obtains the apparatus structure schematic diagram of uplink timing advance, as illustrated, can include：
Transfer point determining module 801, for determining that terminal needs to transmit the object transmission point of data；
Request module 802, it is described up for initiating to obtain the request of uplink timing advance to network side Timing Advance is the uplink timing advance needed for the terminal transmits data to the object transmission point；
Lead determining module 803, disappearing for uplink timing advance is carried for what is returned according to network side Breath determines the terminal to the uplink timing advance needed for object transmission point transmission data.
In implementation, request module is further used for carrying to the up timing of one of following network side entity initiation acquisition The request of preceding amount：
Object transmission point, current transmission point and object transmission point belong to the transfer point with group, wherein, it is described Group is to be determined according to terminal to the uplink timing advance used when belonging to the transfer point transmission data with group, Current transmission point is the transfer point currently carried out data transmission with terminal.
In implementation, request module is further used for initiating to obtain to the transfer point for belonging to same group with object transmission point When taking the request of uplink timing advance, described group is in the way of including one of in the following manner or its combination It is grouped：
After network side in region by the transfer point that may carry out data transmission with terminal is determined, according to terminal with Uplink timing advance needed for each transmission point carries out data transmission is grouped to transfer point；
After terminal feeds back the transfer point that may carry out data transmission with terminal to network side, according to terminal and often Uplink timing advance needed for individual transfer point carries out data transmission is grouped to transfer point；
Possible transfer point in current region is searched in terminal, the downstream signal of each transfer point is measured, under It is grouped after row signal estimation uplink timing advance.
In implementation, further comprise：
Maintenance module 804, for one of in the following manner or it combines maintaining uplink Timing Advance：
Start Timing Advance after the message for carrying uplink timing advance of network side return is received Timer, Timing Advance timer, Timing Advance timing are restarted when receiving new Timing Advance Device time-out is then initiated to obtain the request of uplink timing advance；
When terminal is moved, Timing Advance is adjusted according to the distance of object transmission point；
In the change of object transmission point transmission characteristic, or during the change of object transmission point, initiate the up timing of acquisition and carry The request of preceding amount.
In implementation, the Timing Advance timer is：The Timing Advance timer received from network side, Or using Timing Advance timer as defined in agreement, or in the Timing Advance timer of terminal built-in.
Fig. 9 is returns to the system structure diagram of uplink timing advance, as illustrated, can include：
Receiving module 901, the request for the acquisition uplink timing advance initiated for receiving terminal to network side, The uplink timing advance is the uplink timing advance needed for the terminal transmits data to object transmission point；
Determining module 902, for determining that terminal is carried to the up timing needed for object transmission point transmission data Preceding amount；
Module 903 is returned, the message of the uplink timing advance is carried for being returned to terminal.
In implementation, receiving module is located at one of following network side entity：
Object transmission point, current transmission point and object transmission point belong to the transfer point with group, wherein, it is described Group is to be determined according to terminal to the uplink timing advance used when belonging to the transfer point transmission data with group, Current transmission point is the transfer point currently carried out data transmission with terminal.
In implementation, further comprise：
Grouping module 904, for carrying out data biography with terminal by including one of in the following manner or its combination pair Defeated each transfer point is grouped：
After network side in region by the transfer point that may carry out data transmission with terminal is determined, according to terminal with Uplink timing advance needed for each transmission point carries out data transmission is grouped to transfer point；
After terminal feeds back the transfer point that may carry out data transmission with terminal to network side, according to terminal and often Uplink timing advance needed for individual transfer point carries out data transmission is grouped to transfer point；
Possible transfer point in current region is searched in terminal, the downstream signal of each transfer point is measured, under It is grouped after row signal estimation uplink timing advance.
In implementation, determining module is located at current transmission point, is further used for being located at object transmission in receiving module Point, and module is returned positioned at when being current transmission point, determine that terminal is passed to the target by object transmission point Uplink timing advance needed for defeated point transmission data.
In implementation, return to module and be further used for carrying having for the uplink timing advance to terminal return Imitate the message of duration.
In implementation, determining module is further used for one of in the following manner or its combination determines terminal to the mesh Mark the uplink timing advance needed for transfer point transmission data：
When it is object transmission point to receive the network side equipment for obtaining uplink timing advance request, according to this The measured value that the uplink reference signals or upstream signals that terminal is sent are carried out is determined；
When it is not object transmission point to receive the network side equipment for obtaining uplink timing advance request, according to this Terminal is to the Timing Advance of current transmission point, object transmission point to terminal or object transmission point to current transmission The distance of point, and one of the transmission frequency of object transmission point or its combination determine, wherein, current transmission Point is to receive the network side equipment for obtaining uplink timing advance request.
In implementation, further comprise：
Update module 905, for after network side determines uplink timing advance change, it is determined that after change Uplink timing advance；Uplink timing advance order is sent to terminal；Enable up after change with terminal Timing Advance, and restart Timing Advance timer.
For convenience of description, each several part of apparatus described above is divided into various modules with function or unit is distinguished Description.Certainly, can be each module or the function of unit in same or multiple softwares when implementing the present invention Or realized in hardware.
When implementing technical scheme provided in an embodiment of the present invention, it can implement as follows.
Figure 10 is terminal structure schematic diagram, as illustrated, terminal includes：
Processor 1000, for reading the program in memory 1020, performs following process：
Determine that terminal needs to transmit the object transmission point of data；
The message for carrying uplink timing advance returned according to network side determines that the terminal is passed to the target Uplink timing advance needed for defeated point transmission data；
Transceiver 1010, for sending data under the control of processor 1000, performs following process：
Initiate to obtain the request of uplink timing advance to network side, the uplink timing advance is the terminal Uplink timing advance needed for transmitting from data to the object transmission point；
Receive the message for carrying uplink timing advance that network side is returned.
It is to following network side when initiating to obtain the request of uplink timing advance to network side in implementation One of entity is initiated：
Object transmission point, current transmission point and object transmission point belong to the transfer point with group, wherein, it is described Group is to be determined according to terminal to the uplink timing advance used when belonging to the transfer point transmission data with group, Current transmission point is the transfer point currently carried out data transmission with terminal.
One of in implementation, pair each transfer point carried out data transmission with terminal is grouped, including in the following manner Or its combination：
After network side in region by the transfer point that may carry out data transmission with terminal is determined, according to terminal with Uplink timing advance needed for each transmission point carries out data transmission is grouped to transfer point；
After terminal feeds back the transfer point that may carry out data transmission with terminal to network side, according to terminal and often Uplink timing advance needed for individual transfer point carries out data transmission is grouped to transfer point；
Possible transfer point in current region is searched in terminal, the downstream signal of each transfer point is measured, under It is grouped after row signal estimation uplink timing advance.
In implementation, further comprise one of in the following manner or its combination：
Start Timing Advance after the message for carrying uplink timing advance of network side return is received Timer, Timing Advance timer, Timing Advance timing are restarted when receiving new Timing Advance Device time-out is then initiated to obtain the request of uplink timing advance；
When terminal is moved, Timing Advance is adjusted according to the distance of object transmission point；
In the change of object transmission point transmission characteristic, or during the change of object transmission point, initiate the up timing of acquisition and carry The request of preceding amount.
In implementation, the Timing Advance timer is：The Timing Advance timer received from network side, Or using Timing Advance timer as defined in agreement, or in the Timing Advance timer of terminal built-in.
Wherein, in Fig. 10, bus architecture can include the bus and bridge of any number of interconnection, specifically The various electricity for the memory that the one or more processors and memory 1020 represented by processor 1000 are represented Road is linked together.Bus architecture can also by ancillary equipment, voltage-stablizer and management circuit etc. it Various other circuits of class are linked together, these be all it is known in the art, therefore, it is no longer right herein It is described further.EBI provides interface.Transceiver 1010 can be multiple element, that is, wrap Including transmitter and receiver, there is provided the unit for being communicated over a transmission medium with various other devices.For Different user equipmenies, user interface 1030, which can also be external to be inscribed, needs the interface of equipment, even The equipment connect includes but is not limited to keypad, display, loudspeaker, microphone, control stick etc..
Processor 1000 is responsible for bus architecture and common processing, and memory 1020 can store processing The used data when performing operation of device 1000.
In implementation, network side equipment not necessarily physically independent community's equipment of individualism, thing It is probably to be made up of current transmission point, object transmission point etc. in reality, and realizes function therein jointly, but It is readily appreciated that, they, can be by specific first device such as processor, transceiver in specific entity device Part is realized, the implementation that may be located at each component in different entities equipment is said below It is bright.
Figure 11 is network side equipment structural representation, as illustrated, network side equipment includes：
Processor 1100, for reading the program in memory 1120, performs following process：
Determine terminal to the uplink timing advance needed for object transmission point transmission data；
Transceiver 1110, for sending data under the control of processor 1100, performs following process：
The request for the acquisition uplink timing advance that receiving terminal is initiated to network side, the up timing advance Amount is the uplink timing advance needed for the terminal transmits data to object transmission point；
The message for carrying the uplink timing advance is returned to terminal.
In implementation, receiving terminal to network side initiate acquisition uplink timing advance request when, be as What one of lower network side entity was received：
Object transmission point, current transmission point and object transmission point belong to the transfer point with group, wherein, it is described Group is to be determined according to terminal to the uplink timing advance used when belonging to the transfer point transmission data with group, Current transmission point is the transfer point currently carried out data transmission with terminal.
One of in implementation, pair each transfer point carried out data transmission with terminal is grouped, including in the following manner Or its combination：
After network side in region by the transfer point that may carry out data transmission with terminal is determined, according to terminal with Uplink timing advance needed for each transmission point carries out data transmission is grouped to transfer point；
After terminal feeds back the transfer point that may carry out data transmission with terminal to network side, according to terminal and often Uplink timing advance needed for individual transfer point carries out data transmission is grouped to transfer point；
Possible transfer point in current region is searched in terminal, the downstream signal of each transfer point is measured, under It is grouped after row signal estimation uplink timing advance.
It is object transmission point receiving acquisition uplink timing advance request, and returned to terminal in implementation When the network side equipment for carrying the message of uplink timing advance is current transmission point, current transmission point is logical Crossing target transfer point determines terminal to the uplink timing advance needed for object transmission point transmission data.
In implementation, further comprise：
The message for the effective time for carrying the uplink timing advance is returned to terminal.
In implementation, terminal is determined to the uplink timing advance needed for object transmission point transmission data, including One of in the following manner or its combination：
When it is object transmission point to receive the network side equipment for obtaining uplink timing advance request, according to this The measured value that the uplink reference signals or upstream signals that terminal is sent are carried out is determined；
When it is not object transmission point to receive the network side equipment for obtaining uplink timing advance request, according to this Terminal is to the Timing Advance of current transmission point, object transmission point to terminal or object transmission point to current transmission The distance of point, and one of the transmission frequency of object transmission point or its combination determine, wherein, current transmission Point is to receive the network side equipment for obtaining uplink timing advance request.
In implementation, further comprise：
After network side determines uplink timing advance change, it is determined that the uplink timing advance after change；
Uplink timing advance order is sent to terminal；
The uplink timing advance after change is enabled with terminal, and restarts Timing Advance timer.
Wherein, in fig. 11, bus architecture can include the bus and bridge of any number of interconnection, specifically The various electricity for the memory that the one or more processors and memory 1120 represented by processor 1100 are represented Road is linked together.Bus architecture can also by ancillary equipment, voltage-stablizer and management circuit etc. it Various other circuits of class are linked together, these be all it is known in the art, therefore, it is no longer right herein It is described further.EBI provides interface.Transceiver 1110 can be multiple element, that is, wrap Including transmitter and transceiver, there is provided the unit for being communicated over a transmission medium with various other devices.Processing Device 1100 is responsible for bus architecture and common processing, and memory 1120 can store processor 1100 The used data when performing operation.
In summary, in technical scheme provided in an embodiment of the present invention, by selecting network side transfer point, Initiate to obtain uplink timing advance process to network side as needed.Network side estimates terminal to object transmission The Timing Advance of point, and notify the terminal Timing Advance information.
Further, the packet of the transfer point based on Timing Advance is additionally provided in scheme and scheme, terminal are obtained Get scheme, the maintenance scheme of Timing Advance of the Timing Advance of transfer point.
By the invention it is possible to effectively realize uplink when terminal flexibly selects transfer point.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or meter Calculation machine program product.Therefore, the present invention can be using complete hardware embodiment, complete software embodiment or knot The form of embodiment in terms of conjunction software and hardware.Wherein wrapped one or more moreover, the present invention can be used Containing computer usable program code computer-usable storage medium (include but is not limited to magnetic disk storage and Optical memory etc.) on the form of computer program product implemented.
The present invention is with reference to the production of method according to embodiments of the present invention, equipment (system) and computer program The flow chart and/or block diagram of product is described.It should be understood that can by computer program instructions implementation process figure and / or each flow and/or square frame in block diagram and the flow in flow chart and/or block diagram and/ Or the combination of square frame.These computer program instructions can be provided to all-purpose computer, special-purpose computer, insertion Formula processor or the processor of other programmable data processing devices are to produce a machine so that pass through and calculate The instruction of the computing device of machine or other programmable data processing devices is produced for realizing in flow chart one The device for the function of being specified in individual flow or multiple flows and/or one square frame of block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or the processing of other programmable datas to set In the standby computer-readable memory worked in a specific way so that be stored in the computer-readable memory Instruction produce include the manufacture of command device, the command device realization in one flow or multiple of flow chart The function of being specified in one square frame of flow and/or block diagram or multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices, made Obtain and perform series of operation steps on computer or other programmable devices to produce computer implemented place Reason, so that the instruction performed on computer or other programmable devices is provided for realizing in flow chart one The step of function of being specified in flow or multiple flows and/or one square frame of block diagram or multiple square frames.
Obviously, those skilled in the art can carry out various changes and modification without departing from this hair to the present invention Bright spirit and scope.So, if the present invention these modifications and variations belong to the claims in the present invention and Within the scope of its equivalent technologies, then the present invention is also intended to comprising including these changes and modification.

Claims (24)

1. a kind of method for obtaining uplink timing advance, it is characterised in that including：
Determine that terminal needs to transmit the object transmission point of data；
Initiate to obtain the request of uplink timing advance to network side, the uplink timing advance is the terminal Uplink timing advance needed for transmitting from data to the object transmission point；
The message for carrying uplink timing advance returned according to network side determines that the terminal is passed to the target Uplink timing advance needed for defeated point transmission data.
2. the method as described in claim 1, it is characterised in that initiating to obtain up fixed to network side When lead request when, be to one of following network side entity initiate：
Object transmission point, current transmission point and object transmission point belong to the transfer point with group, wherein, it is described Group is to be determined according to terminal to the uplink timing advance used when belonging to the transfer point transmission data with group, Current transmission point is the transfer point currently carried out data transmission with terminal.
3. method as claimed in claim 2, it is characterised in that pair with terminal carry out data transmission it is each Transfer point is grouped, including one of in the following manner or its combination：
After network side in region by the transfer point that may carry out data transmission with terminal is determined, according to terminal with Uplink timing advance needed for each transmission point carries out data transmission is grouped to transfer point；
After terminal feeds back the transfer point that may carry out data transmission with terminal to network side, according to terminal and often Uplink timing advance needed for individual transfer point carries out data transmission is grouped to transfer point；
Possible transfer point in current region is searched in terminal, the downstream signal of each transfer point is measured, under It is grouped after row signal estimation uplink timing advance.
4. the method as described in claims 1 to 3 is any, it is characterised in that further comprise with lower section One of formula or its combination：
Start Timing Advance after the message for carrying uplink timing advance of network side return is received Timer, Timing Advance timer, Timing Advance timing are restarted when receiving new Timing Advance Device time-out is then initiated to obtain the request of uplink timing advance；
When terminal is moved, Timing Advance is adjusted according to the distance of object transmission point；
In the change of object transmission point transmission characteristic, or during the change of object transmission point, initiate the up timing of acquisition and carry The request of preceding amount.
5. method as claimed in claim 4, it is characterised in that the Timing Advance timer is： The Timing Advance timer received from network side, or using Timing Advance timer as defined in agreement, or In the Timing Advance timer of terminal built-in.
6. a kind of method for returning to uplink timing advance, it is characterised in that including：
The request for the acquisition uplink timing advance that receiving terminal is initiated to network side, the up timing advance Amount is the uplink timing advance needed for the terminal transmits data to object transmission point；
Determine terminal to the uplink timing advance needed for object transmission point transmission data；
The message for carrying the uplink timing advance is returned to terminal.
7. method as claimed in claim 6, it is characterised in that initiated in receiving terminal to network side It is that one of following network side entity is received when obtaining the request of uplink timing advance：
Object transmission point, current transmission point and object transmission point belong to the transfer point with group, wherein, it is described Group is to be determined according to terminal to the uplink timing advance used when belonging to the transfer point transmission data with group, Current transmission point is the transfer point currently carried out data transmission with terminal.
8. method as claimed in claim 7, it is characterised in that pair with terminal carry out data transmission it is each Transfer point is grouped, including one of in the following manner or its combination：
After network side in region by the transfer point that may carry out data transmission with terminal is determined, according to terminal with Uplink timing advance needed for each transmission point carries out data transmission is grouped to transfer point；
After terminal feeds back the transfer point that may carry out data transmission with terminal to network side, according to terminal and often Uplink timing advance needed for individual transfer point carries out data transmission is grouped to transfer point；
Possible transfer point in current region is searched in terminal, the downstream signal of each transfer point is measured, under It is grouped after row signal estimation uplink timing advance.
9. method as claimed in claim 7 or 8, it is characterised in that carried receiving the up timing of acquisition The request of preceding amount is object transmission point, and returns to terminal the network for the message for carrying uplink timing advance When side apparatus is current transmission point, current transmission point is to determine terminal to the object transmission by object transmission point Uplink timing advance needed for point transmission data.
10. the method as described in claim 6 to 8 is any, it is characterised in that further comprise：
The message for the effective time for carrying the uplink timing advance is returned to terminal.
11. the method as described in claim 6 to 8 is any, it is characterised in that determine terminal to the target Transfer point transmits one of the uplink timing advance needed for data, including in the following manner or its combination：
When it is object transmission point to receive the network side equipment for obtaining uplink timing advance request, according to this The measured value that the uplink reference signals or upstream signals that terminal is sent are carried out is determined；
When it is not object transmission point to receive the network side equipment for obtaining uplink timing advance request, according to this Terminal is to the Timing Advance of current transmission point, object transmission point to terminal or object transmission point to current transmission The distance of point, and one of the transmission frequency of object transmission point or its combination determine, wherein, current transmission Point is to receive the network side equipment for obtaining uplink timing advance request.
12. the method as described in claim 6 to 8 is any, it is characterised in that further comprise：
After network side determines uplink timing advance change, it is determined that the uplink timing advance after change；
Uplink timing advance order is sent to terminal；
The uplink timing advance after change is enabled with terminal, and restarts Timing Advance timer.
13. a kind of device for obtaining uplink timing advance, it is characterised in that including：
Transfer point determining module, for determining that terminal needs to transmit the object transmission point of data；
Request module, for initiating to obtain the request of uplink timing advance, the up timing to network side Lead is the uplink timing advance needed for the terminal transmits data to the object transmission point；
Lead determining module, the message for carrying uplink timing advance for being returned according to network side is true Determine the uplink timing advance needed for the terminal transmits data to the object transmission point.
14. device as claimed in claim 13, it is characterised in that request module is further used for such as One of lower network side entity initiates to obtain the request of uplink timing advance：
Object transmission point, current transmission point and object transmission point belong to the transfer point with group, wherein, it is described Group is to be determined according to terminal to the uplink timing advance used when belonging to the transfer point transmission data with group, Current transmission point is the transfer point currently carried out data transmission with terminal.
15. device as claimed in claim 14, it is characterised in that request module be further used for When belonging to the request with the transfer point initiation acquisition uplink timing advance of group with object transmission point, described group is It is grouped in the way of including one of in the following manner or its combination：
After network side in region by the transfer point that may carry out data transmission with terminal is determined, according to terminal with Uplink timing advance needed for each transmission point carries out data transmission is grouped to transfer point；
After terminal feeds back the transfer point that may carry out data transmission with terminal to network side, according to terminal and often Uplink timing advance needed for individual transfer point carries out data transmission is grouped to transfer point；
Possible transfer point in current region is searched in terminal, the downstream signal of each transfer point is measured, under It is grouped after row signal estimation uplink timing advance.
16. the device as described in claim 13 to 15 is any, it is characterised in that further comprise：
Maintenance module, for one of in the following manner or it combines maintaining uplink Timing Advance：
Start Timing Advance after the message for carrying uplink timing advance of network side return is received Timer, Timing Advance timer, Timing Advance timing are restarted when receiving new Timing Advance Device time-out is then initiated to obtain the request of uplink timing advance；
When terminal is moved, Timing Advance is adjusted according to the distance of object transmission point；
In the change of object transmission point transmission characteristic, or during the change of object transmission point, initiate the up timing of acquisition and carry The request of preceding amount.
17. device as claimed in claim 16, it is characterised in that the Timing Advance timer is： The Timing Advance timer received from network side, or using Timing Advance timer as defined in agreement, or In the Timing Advance timer of terminal built-in.
18. a kind of system for returning to uplink timing advance, it is characterised in that including：
Receiving module, the request for the acquisition uplink timing advance initiated for receiving terminal to network side, institute It is the uplink timing advance needed for the terminal transmits data to object transmission point to state uplink timing advance；
Determining module, for determining terminal to the up timing advance needed for object transmission point transmission data Amount；
Module is returned, the message of the uplink timing advance is carried for being returned to terminal.
19. system as claimed in claim 18, it is characterised in that receiving module is located at following network side One of entity：
Object transmission point, current transmission point and object transmission point belong to the transfer point with group, wherein, it is described Group is to be determined according to terminal to the uplink timing advance used when belonging to the transfer point transmission data with group, Current transmission point is the transfer point currently carried out data transmission with terminal.
20. system as claimed in claim 19, it is characterised in that further comprise：
Grouping module, for by pair carrying out data transmission with terminal including one of in the following manner or its combination Each transfer point is grouped：
After network side in region by the transfer point that may carry out data transmission with terminal is determined, according to terminal with Uplink timing advance needed for each transmission point carries out data transmission is grouped to transfer point；
After terminal feeds back the transfer point that may carry out data transmission with terminal to network side, according to terminal and often Uplink timing advance needed for individual transfer point carries out data transmission is grouped to transfer point；
Possible transfer point in current region is searched in terminal, the downstream signal of each transfer point is measured, under It is grouped after row signal estimation uplink timing advance.
21. the system as described in claim 19 or 20, it is characterised in that determining module is located at and works as forward pass It is defeated, it is further used for being located at object transmission point in receiving module, and it is current transmission to return to module to be located at During point, determine terminal to the up timing advance needed for object transmission point transmission data by object transmission point Amount.
22. the system as described in claim 18 to 20 is any, it is characterised in that return to module further Message for returning to from the effective time for carrying the uplink timing advance to terminal.
23. the system as described in claim 18 to 20 is any, it is characterised in that determining module is further For one of in the following manner or its combination determine terminal transmit data to the object transmission point needed for Row Timing Advance：
When it is object transmission point to receive the network side equipment for obtaining uplink timing advance request, according to this The measured value that the uplink reference signals or upstream signals that terminal is sent are carried out is determined；
When it is not object transmission point to receive the network side equipment for obtaining uplink timing advance request, according to this Terminal is to the Timing Advance of current transmission point, object transmission point to terminal or object transmission point to current transmission The distance of point, and one of the transmission frequency of object transmission point or its combination determine, wherein, current transmission Point is to receive the network side equipment for obtaining uplink timing advance request.
24. the system as described in claim 18 to 20 is any, it is characterised in that further comprise：
Update module, for after network side determines uplink timing advance change, it is determined that up after change Timing Advance；Uplink timing advance order is sent to terminal；The up timing after change is enabled with terminal Lead, and restart Timing Advance timer.
CN201610095127.5A 2016-02-19 2016-02-19 A kind of method and device, system for obtaining, returning to uplink timing advance Active CN107105496B (en)

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CN109936873A (en) * 2017-12-19 2019-06-25 珠海市魅族科技有限公司 A kind of method and device configuring Timing Advance
WO2020030048A1 (en) * 2018-08-09 2020-02-13 华为技术有限公司 Communication method and apparatus
WO2020062071A1 (en) * 2018-09-28 2020-04-02 华为技术有限公司 Uplink signal transmission method and device
CN112534893A (en) * 2018-08-10 2021-03-19 华为技术有限公司 Communication method and device
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