CN102958075B - The determination method and apparatus of timing advance TA - Google Patents

The determination method and apparatus of timing advance TA Download PDF

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Publication number
CN102958075B
CN102958075B CN201110251136.6A CN201110251136A CN102958075B CN 102958075 B CN102958075 B CN 102958075B CN 201110251136 A CN201110251136 A CN 201110251136A CN 102958075 B CN102958075 B CN 102958075B
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transmitting
receiving node
signal
terminal
downstream signal
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CN102958075A (en
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周明宇
马莎
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to PCT/CN2012/079998 priority patent/WO2013029464A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time

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

Abstract

The embodiment of the present invention provides the determination method and apparatus of a kind of timing advance TA.A kind of method includes: receives the characteristic information of the downstream signal of the first transmitting-receiving node and measures the measurement time information of described downstream signal, described first transmitting-receiving node is the transmitting-receiving node for receiving terminal uplink signal, and described characteristic information is for distinguishing the downstream signal that different transmitting-receiving node sends；In the described measurement moment, measure the downstream signal that described characteristic information is corresponding, and determine the timing change of described downstream signal according to measurement result；Timing change according to described downstream signal, determines the timing advance TA sending upward signal to described first transmitting-receiving node.The embodiment of the present invention, the upward signal improving UE transmission arrives the accuracy of the transmitting-receiving node receiving upward signal in the expectation moment.

Description

The determination method and apparatus of timing advance TA
Technical field
The present invention relates to communication technical field, particularly to a kind of determination method of timing advance TA with set Standby.
Background technology
In distributing antenna system (Distributed Antenna System, DAS), each community Including multiple transmitting-receiving nodes with R-T unit, these transmitting-receiving nodes scattering device geographically, thus Make wireless signal between subscriber equipment (User Equipment, UE) and the transmitting-receiving node accessing community The distance of transmission diminishes, and then makes channel conditions be better than legacy wireless communication system.
Owing to a transmitting-receiving node can receive the upward signal that multiple U E sends, in order to avoid multiple UE Upward signal interfere with each other, it usually needs to same transmitting-receiving node send upward signal multiple UE send out The upward signal sent arrives this transmitting-receiving node at synchronization.Wherein, timing advance (Timing Advance, TA) for represent each UE send upward signal lead, the value of TA be D/c, D be wireless The distance that signal transmits between UE and transmitting-receiving node, c is the transmission speed of electromagnetic wave.Owing to UE has Having mobility, distance D that wireless signal transmits between UE and transmitting-receiving node can be continually changing, therefore, U E needs constantly to adjust the value of TA, with ensure upward signal arrival transmitting-receiving node that U E sends time Carve and expect that the error of its due in is within tolerance interval with transmitting-receiving node.
In prior art, generally pertain only to UE and the scene of transmitting-receiving node communication, i.e. UE to This transmitting-receiving node sends upward signal, and receives the downstream signal that this transmitting-receiving node sends.Wherein, UE When sending upward signal, the due at first of the downstream signal sent according to this transmitting-receiving node determines TA Value.But, when receiving the transmitting-receiving node of UE upward signal and the transmitting-receiving sending downstream signal to UE When node is node different on geographical position, if UE is according to the downstream signal received The moment first arrived determines TA value, will affect the accuracy of TA, and the upward signal making UE send is difficult To arrive the transmitting-receiving node receiving upward signal in the expectation moment, and then affect the performance of these transmitting-receiving nodes.
Summary of the invention
Embodiments provide the determination method and apparatus of a kind of timing advance TA, to improve UE The upward signal sent arrives the accuracy of the transmitting-receiving node receiving upward signal in the expectation moment.
On the one hand, the embodiment of the present invention provides a kind of determination method of timing advance TA, including:
When the characteristic information receiving the downstream signal of the first transmitting-receiving node and the measurement measuring described downstream signal Quarter information, described first transmitting-receiving node is the transmitting-receiving node for receiving terminal uplink signal, described feature Information is for distinguishing the downstream signal that different transmitting-receiving node sends；
In the described measurement moment, measure the downstream signal that described characteristic information is corresponding, and according to measurement result Determine the timing change of described downstream signal；
Timing change according to described downstream signal, determines and sends upward signal to described first transmitting-receiving node Timing advance TA.
The embodiment of the present invention provides the determination method of another timing advance TA, including:
Determine that the first transmitting-receiving node, described first transmitting-receiving node are the transmitting-receiving for receiving terminal uplink signal Node；
One or more transmitting-receiving nodes in one or more communities that described terminal accesses send the first control System order, described first control command sends under described first transmitting-receiving node to described terminal for instruction The characteristic information of row signal and the measurement time information of the described downstream signal of measurement, described characteristic information is used for Distinguish the downstream signal that different transmitting-receiving node sends.
The embodiment of the present invention also provides for the determination method of another kind of timing advance TA, including:
Receiving the first control command that base station sends, described first control command sends to terminal for instruction The characteristic information of the downstream signal of the first transmitting-receiving node and the measurement time information of the described downstream signal of measurement, Described first transmitting-receiving node is the transmitting-receiving node for receiving described terminal uplink signal, described characteristic information For distinguishing the downstream signal that different transmitting-receiving node sends；
Described characteristic information and described measurement time information is sent, so that described terminal is in institute to described terminal State and measure the downstream signal that the described characteristic information of moment measurement is corresponding.
The embodiment of the present invention also provides for the determination method of another timing advance TA, including:
Receiving and adjust order, described adjustment is carried in order for sending upward signal to the first transmitting-receiving node The corrected parameter of timing advance TA, described first transmitting-receiving node is for receiving terminal uplink signal Transmitting-receiving node；
According to described corrected parameter, determine the TA sending upward signal to described first transmitting-receiving node.
The embodiment of the present invention also provides for the determination method of another timing advance TA, including:
One or more transmitting-receiving nodes in one or more communities that terminal accesses send the 3rd control life Order, described 3rd control command is used for indicating the described terminal of acquisition to send upward signal to the first transmitting-receiving node The corrected parameter of timing advance TA, and for instruction, described corrected parameter is sent to described terminal, Described first transmitting-receiving node is the transmitting-receiving node for receiving terminal uplink signal.
The embodiment of the present invention also provides for a kind of determination method of timing advance TA, including:
Receive the 3rd control command that base station sends, described 3rd control command be used for indicating acquisition terminal to First transmitting-receiving node sends the corrected parameter of the timing advance TA of upward signal, described first transmitting-receiving node For the transmitting-receiving node for receiving terminal uplink signal；
The timing change of the upward signal of the described terminal received according to described first transmitting-receiving node and the The timing change of the upward signal of the described terminal that two transmitting-receiving nodes receive, determines described corrected parameter, Described second transmitting-receiving node is the transmitting-receiving node for sending downstream signal to described terminal；
Sending to described terminal and adjust order, described adjustment in order carries described corrected parameter, so that institute State terminal and determine the TA sending upward signal to described first transmitting-receiving node according to described corrected parameter.
On the other hand, the embodiment of the present invention also provides for a kind of terminal, including:
Receptor, for receiving the characteristic information of the downstream signal of the first transmitting-receiving node and measuring described descending The measurement time information of signal, described first transmitting-receiving node is for receiving the transmitting-receiving of terminal uplink signal joint Point, described characteristic information is for distinguishing the downstream signal that different transmitting-receiving node sends；
Processor, in the described measurement moment, measuring the downstream signal that described characteristic information is corresponding, root Determine the timing change of described downstream signal according to measurement result, and change according to the timing of described downstream signal, Determine the timing advance TA sending upward signal to described first transmitting-receiving node.
The embodiment of the present invention also provides for a kind of base station, including:
Processor, is used for determining the first transmitting-receiving node, and described first transmitting-receiving node is for being used for receiving terminal The transmitting-receiving node of row signal；
Transmitter, for the one or more transmitting-receiving joints in one or more communities that described terminal accesses Point sends the first control command, and described first control command sends described first for instruction to described terminal The characteristic information of the downstream signal of transmitting-receiving node and the measurement time information of the described downstream signal of measurement, described Characteristic information is for distinguishing the downstream signal that different transmitting-receiving node sends.
The embodiment of the present invention also provides for a kind of transmitting-receiving node, including:
Receptor, for receiving the first control command that base station sends, described first control command is used for referring to Show to terminal send the first transmitting-receiving node downstream signal characteristic information and measure described downstream signal survey Amount time information, described first transmitting-receiving node is the transmitting-receiving node for receiving described terminal uplink signal, Described characteristic information is for distinguishing the downstream signal that different transmitting-receiving node sends；
Transmitter, for sending described characteristic information and described measurement time information to described terminal, so that Described terminal measures, described, the downstream signal that the described characteristic information of moment measurement is corresponding.
The embodiment of the present invention also provides for a kind of terminal, including:
Receptor, is used for receiving adjustment order, and described adjustment in order is carried for the first transmitting-receiving node Sending the corrected parameter of the timing advance TA of upward signal, described first transmitting-receiving node is for being used for receiving end The transmitting-receiving node of end upward signal；
Processor, for according to described corrected parameter, determines and sends up letter to described first transmitting-receiving node Number TA.
The embodiment of the present invention also provides for a kind of base station, including:
Transmitter, sends out for the one or more transmitting-receiving nodes in one or more communities that terminal accesses The 3rd control command, described 3rd control command is sent to be used for indicating the described terminal of acquisition to the first transmitting-receiving node Send the corrected parameter of the timing advance TA of upward signal, and for instruction, described corrected parameter is sent To described terminal, described first transmitting-receiving node is the transmitting-receiving node for receiving terminal uplink signal.
The embodiment of the present invention also provides for a kind of transmitting-receiving node, including:
Receptor, for receiving the 3rd control command that base station sends, described 3rd control command is used for referring to Show the corrected parameter obtaining the timing advance TA that terminal sends upward signal to the first transmitting-receiving node, described First transmitting-receiving node is the transmitting-receiving node for receiving terminal uplink signal；
Processor, for determining of the upward signal of described terminal that receives according to described first transmitting-receiving node The timing change of the upward signal of the described terminal that Shi Bianhua and the second transmitting-receiving node receive, determines institute Stating corrected parameter, described second transmitting-receiving node is the transmitting-receiving node for sending downstream signal to described terminal；
Transmitter, adjusts order for sending to described terminal, and described adjustment in order carries described correction Parameter, so that described terminal determines according to described corrected parameter sends up letter to described first transmitting-receiving node Number TA.
The determination method and apparatus of the timing advance TA that the embodiment of the present invention provides, controls to receive by base station Send out node and send, to UE, downstream signal information and the time of measurement that up transmitting-receiving node sends, make UE exist The downstream signal that this measurement measure of time is corresponding, obtains and determines to this up transmitting-receiving node transmission upward signal TA.Or, base station controls transmitting-receiving node and sends the corrected parameter of TA to UE, makes UE according to being somebody's turn to do Corrected parameter determines the TA sending upward signal to this up transmitting-receiving node, thus improves the upper of UE transmission Row signal arrives the accuracy of the transmitting-receiving node receiving upward signal in the expectation moment.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that under, Accompanying drawing during face describes is some embodiments of the present invention, for those of ordinary skill in the art, On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The flow chart of one embodiment of determination method of the timing advance TA that Fig. 1 a provides for the present invention；
The schematic diagram that Fig. 1 b is the first transmitting-receiving node and the second transmitting-receiving node is different node；
The flow chart of determination another embodiment of method of the timing advance TA that Fig. 2 provides for the present invention；
The flow chart of determination another embodiment of method of the timing advance TA that Fig. 3 provides for the present invention；
The flow chart of the determination method further embodiment of the timing advance TA that Fig. 4 provides for the present invention；
The flow chart of determination another embodiment of method of the timing advance TA that Fig. 5 provides for the present invention；
The flow chart of determination another embodiment of method of the timing advance TA that Fig. 6 provides for the present invention；
The schematic diagram of the determination method further embodiment of the timing advance TA that Fig. 7 provides for the present invention；
The terminal one of the determination method for performing above-mentioned timing advance TA that Fig. 8 provides for the present invention The structural representation of individual embodiment；
The base station one of the determination method for performing above-mentioned timing advance TA that Fig. 9 provides for the present invention The structural representation of individual embodiment；
The transmitting-receiving joint of the determination method for performing above-mentioned timing advance TA that Figure 10 provides for the present invention The structural representation of one embodiment of point；
The base station of the determination method for performing above-mentioned timing advance TA that Figure 11 provides for the present invention is again The structural representation of one embodiment；
The transmitting-receiving joint of the determination method for performing above-mentioned timing advance TA that Figure 12 provides for the present invention The structural representation of another embodiment of point.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with this Accompanying drawing in bright embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention, Obviously, described embodiment is a part of embodiment of the present invention rather than whole embodiments.Based on Embodiment in the present invention, those of ordinary skill in the art are obtained under not making creative work premise The every other embodiment obtained, broadly falls into the scope of protection of the invention.
The flow chart of one embodiment of determination method of the timing advance TA that Fig. 1 a provides for the present invention, as Shown in Fig. 1 a, the method includes:
S101, the characteristic information receiving the downstream signal of the first transmitting-receiving node and the measurement of measurement downstream signal Time information, the first transmitting-receiving node is the transmitting-receiving node for receiving terminal uplink signal, and characteristic information is used In distinguishing the downstream signal that different transmitting-receiving node sends；
S102, measure the moment, measure downstream signal corresponding to characteristic information, and true according to measurement result Determine the timing change of downstream signal；
S103, change according to the timing of downstream signal, determine and send upward signal to the first transmitting-receiving node Timing advance TA.
The executive agent of above step is terminal (i.e. user equipment (UE)).
In the embodiment of the present invention, the uplink of UE and downlink reception respectively with the first transmitting-receiving node and second Transmitting-receiving node is corresponding, i.e. the first transmitting-receiving node is mainly used in receiving the transmitting-receiving node of UE upward signal, Second transmitting-receiving node is mainly used in sending descending transmitting-receiving node, and the first transmitting-receiving node and second to UE Transmitting-receiving node is different transmitting-receiving node, such as, shown in Fig. 1 b, UE receives under transmitting-receiving node 2 transmission Row signal, and send upward signal to transmitting-receiving node 1.
But it should be recognized that in some cases, the first transmitting-receiving node also can send downstream signal to UE, Further, the second transmitting-receiving node also can receive the upward signal that UE sends.
This first transmitting-receiving node and the second transmitting-receiving node may be located at UE access same community in (that is, this A little transmitting-receiving nodes use identical cell ID (Identity, ID)), it is also possible to it is positioned at UE and accesses not With (that is, these transmitting-receiving nodes use different community ID) in community.First transmitting-receiving node or second is received Sending out node can be access point (Access Point, AP), far-end wireless device (Remote Radio Equipment, RRE), far-end radio port (Remote Radio Head, RRH), far-end Radio-cell (Remote Radio Unit, RRU), relaying (Relay) node, base station or family Antenna elements in base station etc. have the equipment of transmission-receiving function.
Send the characteristic information of the downstream signal of the first transmitting-receiving node to UE and measure the measurement of downstream signal The equipment of time information can include the second transmitting-receiving node, can also include the first transmitting-receiving node, it is also possible to Other transmitting-receiving node in community is accessed including U E.These transmitting-receiving nodes can under the control of base station, to UE sends the characteristic information of the downstream signal of the first transmitting-receiving node and measures the measurement moment letter of downstream signal Breath.
Wherein, the characteristic information of the downstream signal of the first transmitting-receiving node that UE receives is for distinguishing different receipts Sending out the downstream signal that node sends, this feature information can be specifically the partial information in following information or complete Portion's information:
1) transmission time of downstream signal and/or frequency.Due at such as Long Term Evolution (Long Term Evolution, LTE) in system, a Physical Resource Block (Physical Resource Block, PRB) An a length of Transmission Time Interval (Transmission Time Interval, TTI) on time dimension, One TTI includes 14 OFDMs (Orthogonal Frequency Division Multiplexing, OFDM) symbol；One PRB includes 12 subcarriers in frequency dimension.One In individual PRB, a certain transmitting-receiving node generally specifically sends the time (numbering of OFDM symbol) at some And/or send downstream signal to UE on frequency (numbering of subcarrier), therefore, it can send the to UE The transmission time of the downstream signal of one transmitting-receiving node and/or frequency point information, so that U E can know measurement first The concrete moment of the downstream signal of transmitting-receiving node and frequency.
2) the transmission sequence information of downstream signal.In such as LTE system, in order to reach preferably to measure Precision, the downstream signal that transmitting-receiving node sends is usually a certain signal sequence.Therefore, it can send to UE The sequence information of the downstream signal of the first transmitting-receiving node.Optionally, put multiple fixing when systemic presupposition During sequence, the sequence information to UE transmission can include the numbering of signal sequence；Again due to downstream signal Signal sequence generates typically by depositor, and the initialization value of depositor is different, the signal of generation Sequence is different.Therefore, optionally, the sequence information sent to UE can also include the initialization of depositor The information of value；In addition, the sequence information sent to UE could be included for generating signal sequence Other relevant parameter.
3) transmission antenna/antenna port of the transmission antenna of downstream signal/antenna port number, downstream signal Numbering.Wherein, antenna/antenna port number is it may be that such as: the first transmitting-receiving node passes through 2 antennas Port sends downstream signal, then, after UE sends this information, UE just measures what 2 antenna ports sent Signal.
4) cell ID (Identity, ID) information.When the first transmitting-receiving node and the second transmitting-receiving node are corresponding During different districts, send, to UE, the community ID that the first transmitting-receiving node is corresponding, then UE can read this community ID The signaling that the first corresponding transmitting-receiving node is sent, thus obtain the first transmitting-receiving node to UE send descending The out of Memory of signal.Such as shown in Fig. 1 b, it is assumed that the first transmitting-receiving node (transmitting-receiving node 1) and second is received Sending out node (transmitting-receiving node 2) respective cell 1 and 2 respectively, UE receives the downstream signal that transmitting-receiving node 2 sends, And send upward signal to transmitting-receiving node 1.Then can send the community ID of community 1 to UE, then UE is permissible The information of required downstream signal is obtained, such as: downstream signal by reading the information of community 1 transmission Send time and frequency, downstream signal send sequence information and the transmission antenna/antenna of downstream signal Port number, transmission antenna/antenna port numbering；Or, UE can extrapolate from the community ID of community 1 The out of Memory of downstream signal.
UE can be public reference signal at the downstream signal of the first transmitting-receiving node measuring moment measurement (Common Reference Signal, CRS), or channel state information reference signals (Channel State Information-Reference Signal, CSI-RS).
Owing to generally, the downstream signal that the first transmitting-receiving node sends can be sent out by the second transmitting-receiving node The severe jamming of the downstream signal sent, so that UE cannot accurately measure the descending timing of the first transmitting-receiving node Change.Measure time information therefore, it is also desirable to send to UE, make UE measure time information correspondence Measure the moment measure first transmitting-receiving node send downstream signal, base station can control the second transmitting-receiving node Measure the power of all or part of downstream signal that moment reduction sends, or control the second transmitting-receiving node Power at all or part of downstream signal measuring moment transmission is 0.Preferably, moment, base are being measured Stand control the second transmitting-receiving node not to the UE transmitting portion downstream signal (downstream signal not sent usually number The number of it is believed that, and the downstream signal that the second transmitting-receiving node remains a need for sending is the signal such as CRS or CSI-RS), So that UE engraves when measuring accurately measures the downstream signal that the first transmitting-receiving node sends, thus obtains first The change of the descending timing that transmitting-receiving node is corresponding.
Wherein, the transmission cycle that time information can include the downstream signal of the first transmitting-receiving node transmission is measured With time migration information.Such as in LTE system, transmitting-receiving node can send the most descending in a TTI Signal, and the change of descending timing can be persistently followed the tracks of for the ease of UE, the transmission of downstream signal is permissible Periodically carry out.Therefore, it can transmission cycle and the time of downstream signal by the first transmitting-receiving node Skew notice UE.Wherein, time migration information is for representing transmission downstream signal within each transmission cycle Shift time away from each transmission cycle initial time.Such as: to the transmission week of the downstream signal that UE sends Phase is 5 TTI, and time migration is 1 TTI, then UE will numbered 1,6,11,16...... TTI on measure the first transmitting-receiving node downstream signal.
UE receive the downstream signal of the first transmitting-receiving node characteristic information and measure downstream signal measurement time After quarter information, the moment can measured, measure the downstream signal that characteristic information is corresponding, and according to measurement Result determines the timing change of downstream signal, so that it is determined that send determining of upward signal to the first transmitting-receiving node Time lead TA.
An embodiment of the present embodiment, UE can descending at the first transmitting-receiving node measured in the moment Symbol that signal is corresponding and frequency, measure the signal sequence of this downstream signal；Wherein, the first transmitting-receiving node Symbol (such as: OFDM symbol) corresponding to downstream signal and frequency (such as, subcarrier) permissible Pre-set by UE, or determined according to transmission time and frequency point information by UE, or by UE according to little District's identification information generates；Another embodiment of the present embodiment, UE can also measure the moment, measure With transmission antenna/antenna port number, the downstream signal that and/or transmission antenna/antenna port numbering is corresponding Signal sequence.Such as in LTE system, UE can the first transmitting-receiving node in the measurement time descending OFDM symbol that CRS is corresponding and frequency, measure the signal sequence of this descending CRS.Wherein, descending CRS Corresponding OFDM symbol and frequency all can directly obtain according to the community ID of the first transmitting-receiving node, and under The transmission antenna of row CRS/antenna port number, the transmission antenna/antenna port numbering etc. of descending CRS are believed Breath, can pre-set in UE side, and such as, UE can be according only to a certain antenna port number pre-seted Mesh (such as 1) measures the downstream signal that described first transmitting-receiving node sends.(due to different number of sky The CRS that line cap sends has inclusion relation each other, and transmitting-receiving node passes through arbitrary number (1,2,4) Antenna port send CRS all can the CRS of transmission antenna port 0, therefore pre-set antenna port number Optimal value be 1, so disclosure satisfy that various application scenarios.)
Wherein, the timing of the downstream signal of the first transmitting-receiving node changes specifically, the first receipts that UE receives Send out the time change of the downstream signal that node sends.Determine that the timing of the downstream signal of the first transmitting-receiving node becomes Change can use multiple method, a kind of feasible mode, by the signal sequence of downstream signal measured with under The original series of row signal carries out associative operation (i.e. convolution operation), obtains the timing change of downstream signal, Wherein, original series can be numbered by terminal according to the sequence of downstream signal or be used for generating descending letter Number the depositor initial value information of signal sequence or cell identity information generate.Another kind of feasible Mode, the downstream signal sent due to transmitting-receiving node has certain repeatability, and therefore, UE can will examine The signal segment that at least two of the downstream signal measured repeats carries out associative operation (i.e. convolution operation), thus Obtain the timing change of downstream signal.
The timing change of the downstream signal according to the first transmitting-receiving node, determines on the first transmitting-receiving node sends The timing advance TA of row signal specifically can foundation: NTA, new=NTA, old+TADL.Due to first It is to be moved by UE that transmitting-receiving node sends the change of timing advance TA of upward signal, makes wireless signal the Between one transmitting-receiving node and UE, the change (the i.e. first transmitting-receiving node and UE distance change) of transmission range is drawn Rise, therefore, NTA, oldRepresent the first transmitting-receiving node and UE TA (the i.e. UE nearest before change The secondary TA determined), NTA, newRepresent the first transmitting-receiving node and the UE TA, TA after changeDLTable Show the timing variable quantity of the downstream signal of the first transmitting-receiving node.
The determination method of the timing advance TA that the embodiment of the present invention provides, controls transmitting-receiving node by base station Send the characteristic information of the downstream signal that the first transmitting-receiving node sends to U E and measure time information, making UE At the downstream signal that this measurement measure of time is corresponding, obtain and determine to this first transmitting-receiving node up letter of transmission Number TA.Thus the upward signal improving UE transmission arrives the transmitting-receiving joint receiving upward signal in the expectation moment The accuracy of point.
The flow chart of determination another embodiment of method of the timing advance TA that Fig. 2 provides for the present invention, As in figure 2 it is shown, the method includes:
S201, determine that the first transmitting-receiving node, the first transmitting-receiving node are the receipts for receiving terminal uplink signal Send out node；
S202, to terminal access one or more communities in one or more transmitting-receiving nodes send first Control command, the first control command sends the spy of the downstream signal of the first transmitting-receiving node for instruction to terminal Reference breath and the measurement time information of measurement downstream signal, characteristic information is used for distinguishing different transmitting-receiving node and sends out The downstream signal sent.
The executive agent of above step is base station.
The first control command can be passed through in base station, control in one or more communities that UE accesses or Multiple transmitting-receiving nodes, send the characteristic information of the downstream signal of the first transmitting-receiving node and measure descending letter to U E Number measurement time information.Wherein, the first transmitting-receiving node is the transmitting-receiving node for receiving UE upward signal.
Wherein, characteristic information can be specifically the partial information in following information or full detail: descending letter Number send the time, the frequency point information of downstream signal, downstream signal sequence numbering, downstream signal send out Antennas/antenna port number, the transmission antenna/antenna port of downstream signal are numbered, are used for generating descending letter Number the depositor initial value information of the signal sequence cell identity information corresponding with the first transmitting-receiving node.
Measure time information and may include that transmission cycle and the time migration information of downstream signal, wherein, Time migration information is for representing that transmission downstream signal is initial away from each transmission cycle within each transmission cycle The shift time in moment.
One or more transmitting-receiving nodes in one or more communities that UE accesses receive what base station sent After first control command, the characteristic information of the downstream signal of the first transmitting-receiving node and measurement time information are sent out Give UE, so that UE is in this measurement moment, measure the downstream signal that this feature information is corresponding, according to survey Amount result determines the timing change of described downstream signal, and changes according to the timing of downstream signal further, Determine the timing advance TA sending upward signal to the first transmitting-receiving node.
Wherein, the downstream signal of the first transmitting-receiving node that UE measures can be CRS or CSI-RS.
Optionally, due to the downstream signal of the second transmitting-receiving node transmission for sending downstream signal to UE, The downstream signal sending the first transmitting-receiving node has stronger interference, and therefore, base station can also be to second Transmitting-receiving node sends the second control command, and this second control command is being measured for instruction the second transmitting-receiving node In the measurement moment that time information is corresponding, reduce the power of all or part of downstream signal sent to UE, or Person controls the second transmitting-receiving node 0, so that UE can measure the moment, accurately measure the downstream signal that the first transmitting-receiving node sends.
The determination method of the timing advance TA that the embodiment of the present invention provides, base station controls transmitting-receiving node to UE Send the characteristic information of the downstream signal that the first transmitting-receiving node sends and measure time information, so that UE is at this Measure the downstream signal that measure of time is corresponding, obtain and determine to this first transmitting-receiving node transmission upward signal TA.Thus the upward signal improving UE transmission is expecting that the moment arrives the transmitting-receiving node of reception upward signal Accuracy.
The flow chart of determination another embodiment of method of the timing advance TA that Fig. 3 provides for the present invention, As it is shown on figure 3, the method includes:
The first control command that S301, reception base station send, the first control command is sent out to terminal for instruction Send the characteristic information of the downstream signal of the first transmitting-receiving node and measure the measurement time information of downstream signal, the One transmitting-receiving node is the transmitting-receiving node for receiving terminal uplink signal, and characteristic information is used for distinguishing different receipts Send out the downstream signal that node sends；
S302, to terminal send characteristic information and measure time information so that terminal measure the moment measure The downstream signal that characteristic information is corresponding.
The executive agent of above step is transmitting-receiving node.Be specifically as follows AP, RRE, RRH, RRU, Antenna element etc. in Relay node, base station or Home eNodeB has the equipment of transmission-receiving function.
Send the characteristic information of the downstream signal of the first transmitting-receiving node to U E and measure the measurement of downstream signal The transmitting-receiving node of time information can be the second transmitting-receiving node, can also be the first transmitting-receiving node, it is also possible to It it is other transmitting-receiving node in UE access community.The first control that these transmitting-receiving nodes can issue according to base station System order, sends the characteristic information of the downstream signal of the first transmitting-receiving node and measures the survey of downstream signal to UE Amount time information.
Wherein, transmitting-receiving node can be specifically the partial information in following information to the characteristic information that UE sends Or full detail: transmission time, the frequency point information of downstream signal, the sequence of downstream signal of downstream signal Numbering, the transmission antenna/antenna port of the transmission antenna/antenna port number of downstream signal, downstream signal are compiled Number, corresponding with the first transmitting-receiving node for the depositor initial value information of the signal sequence that generates downstream signal Cell identity information.
Transmitting-receiving node to UE send measure time information may include that downstream signal the transmission cycle and time Between offset information, wherein, time migration information for represent within each transmission cycle send downstream signal Shift time away from each transmission cycle initial time.
UE receives characteristic information and the measurement of the downstream signal of the first transmitting-receiving node that transmitting-receiving node sends After time information, the downstream signal that this feature information is corresponding can be measured, according to survey in this measurement moment Amount result determines the timing change of described downstream signal, and changes according to the timing of downstream signal further, Determine the timing advance TA sending upward signal to the first transmitting-receiving node.
Wherein, the downstream signal of the first transmitting-receiving node that UE measures can be CRS or CSI-RS.
Further, if the executive agent of above each step is for for sending descending to UE in the present embodiment Second transmitting-receiving node of signal, the downstream signal sent due to the second transmitting-receiving node, to the first transmitting-receiving node The downstream signal sent has a stronger interference, and therefore, base station can also send the to the second transmitting-receiving node Two control commands, the second transmitting-receiving node, after receiving the second control command that base station sends, can surveyed In the measurement moment that amount time information is corresponding, reduce the power of all or part of downstream signal sent to UE, Or control the second transmitting-receiving node at the power measuring all or part of downstream signal that the moment sends to UE It is 0, so that UE can measure the moment, accurately measures the downstream signal that the first transmitting-receiving node sends.
The determination method of the timing advance TA that the embodiment of the present invention provides, transmitting-receiving node is in the control of base station Under, send the characteristic information of the downstream signal that the first transmitting-receiving node sends to UE and measure time information, with Make UE at downstream signal corresponding to this measurement measure of time, obtain and determine on this first transmitting-receiving node sends The TA of row signal.Thus the upward signal improving UE transmission arrives the receipts receiving upward signal in the expectation moment Send out the accuracy of node.
In above each method embodiment, control transmitting-receiving node by base station and send out to the UE up transmitting-receiving node of transmission The downstream signal information sent and measurement time, make UE at downstream signal corresponding to this measurement measure of time, obtain Take determine to this up transmitting-receiving node send upward signal TA, wherein, up transmitting-receiving node be for Receive the first transmitting-receiving node of terminal uplink signal.
Following embodiment of the method is with the difference of above-mentioned several embodiments: base station controls transmitting-receiving node Send the corrected parameter of TA to UE, make UE determine according to this corrected parameter and send to this up transmitting-receiving node The TA of upward signal.
The flow chart of the determination method further embodiment of the timing advance TA that Fig. 4 provides for the present invention, As shown in Figure 4, the method includes:
S401, reception adjust order, adjust and carry in order for the first transmitting-receiving node up letter of transmission Number the corrected parameter of timing advance TA, the first transmitting-receiving node is the receipts for receiving terminal uplink signal Send out node；
S402, according to corrected parameter, determine the TA sending upward signal to the first transmitting-receiving node.
The executive agent of above step is terminal.
In the present embodiment, sending to UE and adjust the equipment ordered can be for receiving UE upward signal First transmitting-receiving node, it is also possible to for the second transmitting-receiving node for sending downstream signal to UE, it is also possible to for UE accesses other transmitting-receiving nodes in community.These transmitting-receiving nodes can be AP, RRE, RRH, RRU, Antenna element etc. in relaying (Relay) node, base station or Home eNodeB has the equipment of transmission-receiving function.
In prior art, UE is according to NTA, new=NTA, old+TADLDetermine on the first transmitting-receiving node sends The timing advance TA of row signal, wherein, TADLFor under the second transmitting-receiving node transmission that U E receives The variable quantity of the descending timing of row signal be (i.e. the downstream signal that the second transmitting-receiving node that UE receives sends Time changing value), and the first transmitting-receiving node and the second transmitting-receiving node are different transmitting-receiving nodes, second receives Send out node and be not used to receive the upward signal of UE, therefore, the second transmitting-receiving node or the first transmitting-receiving node Or terminal accesses other transmitting-receiving nodes in community, can obtain for the under the control of base station One transmitting-receiving node sends the corrected parameter of the TA of upward signal, and is carried by this corrected parameter in adjustment order In be sent to UE, so that the TA that UE measures according to selfDLAnd corrected parameter, determine to the first transmitting-receiving Node sends the timing advance TA of upward signal.
Owing to sending the change of TA of upward signal to the first transmitting-receiving node by wireless signal at UE and first The distance change of transmission between transmitting-receiving node causes, and the TA that UE measuresDLIt is that the second transmitting-receiving node sends The descending timing variable quantity of downstream signal, and the descending timing of the downstream signal that the second transmitting-receiving node sends becomes Change amount is that the distance change transmitted between UE and the second transmitting-receiving node by wireless signal causes, and therefore, receives To the transmitting-receiving node of base station control command, can pass between UE and the first transmitting-receiving node according to wireless signal Defeated distance change, and the distance change that wireless signal transmits between UE and the second transmitting-receiving node is next really Determine corrected parameter.The distance change transmitted between UE and transmitting-receiving node due to wireless signal again typically results in There is change in the UE upward signal time that transmitting-receiving node receives, and transmitting-receiving node is generally upper by receive The distance change that the time of row signal changes and perceives between UE, therefore, receives base station and controls life The transmitting-receiving node of order, the timing change of the upward signal of the UE that can receive according to the first transmitting-receiving node with And second the timing change of the upward signal of UE that receives of transmitting-receiving node determine corrected parameter.
As a kind of embodiment, after UE receives adjustment order, can be according to NTA, new=NTA, old+ α×TADLDetermining the timing advance TA sending upward signal to the first transmitting-receiving node, wherein, α is for revising Parameter.
As another embodiment, if transmitting-receiving node is to repairing that adjusting of sending of UE is carried in order Positive parameter is 0, then this adjustment order can serve to indicate that UE no longer determines on the first transmitting-receiving node sends The TA of row signal, and carried the TA order of TA adjustment amount to UE transmission by transmitting-receiving node, make UE straight Connect and determine the TA sending upward signal to the first transmitting-receiving node according to this TA adjustment amount.
The determination method of the timing advance TA that the embodiment of the present invention provides, controls transmitting-receiving node by base station Send the corrected parameter of TA to UE, make UE determine according to this corrected parameter and send to this up transmitting-receiving node The TA of upward signal, thus the upward signal improving UE transmission arrives in the expectation moment and receives upward signal The accuracy of transmitting-receiving node.
The flow chart of determination another embodiment of method of the timing advance TA that Fig. 5 provides for the present invention, As it is shown in figure 5, the method includes:
S501, to terminal access one or more communities in one or more transmitting-receiving nodes send the 3rd Control command, the 3rd control command obtains terminal to the first transmitting-receiving node transmission upward signal for indicating The corrected parameter of timing advance TA, and for instruction, corrected parameter is sent to terminal, the first transmitting-receiving joint Point is the transmitting-receiving node for receiving terminal uplink signal.
The executive agent of above step is base station.
Other transmitting-receivings in community can be accessed in base station to the first transmitting-receiving node, the second transmitting-receiving node or UE Node sends the 3rd control command, controls these transmitting-receiving nodes and obtains the corrected parameter of TA, and correction is joined Number carries and is sent to UE in adjusting order.
Receive the transmitting-receiving node of base station the 3rd control command, can be according to wireless signal in UE and first transmitting-receiving Between node transmission distance change, and wireless signal transmit between UE and the second transmitting-receiving node away from Corrected parameter is determined from change.The distance transmitted between UE and transmitting-receiving node due to wireless signal again becomes Changing and typically result in the UE upward signal time that transmitting-receiving node receives and occurs changing, transmitting-receiving node generally passes through The distance change that the time of the upward signal received changes and perceives between UE, therefore, receives The transmitting-receiving node of base station the 3rd control command, the up letter of the UE that can receive according to the first transmitting-receiving node Number timing change and the timing change of the upward signal of UE that receives of the second transmitting-receiving node determine Corrected parameter.
Concrete, base station can send the 3rd control command, then this first transmitting-receiving joint to the first transmitting-receiving node Point can determining to the upward signal of the UE that second transmitting-receiving node acquisition request the second transmitting-receiving node receives Time changing value, and the timing changing value of the upward signal of the UE received according to the first transmitting-receiving node further Determine corrected parameter.
Or, base station can send the 3rd control command, then this second transmitting-receiving node to the second transmitting-receiving node The timing change of the upward signal of UE that the first transmitting-receiving node receives can be asked to the first transmitting-receiving node It is worth, and the timing change of the upward signal of the UE received according to the second transmitting-receiving node further determines correction Parameter.
Or, base station can also be accessed other transmitting-receiving nodes in community to UE and send the 3rd control command, The UE's that other transmitting-receiving nodes can receive to first transmitting-receiving node acquisition request the first transmitting-receiving node is upper The timing changing value of row signal, and the UE received to second transmitting-receiving node acquisition request the second transmitting-receiving node The timing changing value of upward signal, so that it is determined that corrected parameter.
The determination method of the timing advance TA that the embodiment of the present invention provides, base station controls transmitting-receiving node to UE Send the corrected parameter of TA, make UE determine according to this corrected parameter and send up letter to this up transmitting-receiving node Number TA, thus improve UE send upward signal expectation the moment arrive receive upward signal transmitting-receiving joint The accuracy of point.
The flow chart of determination another embodiment of method of the timing advance TA that Fig. 6 provides for the present invention, As shown in Figure 6, the method includes:
The 3rd control command that S601, reception base station send, the 3rd control command is used for indicating acquisition terminal Send the corrected parameter of the timing advance TA of upward signal to the first transmitting-receiving node, the first transmitting-receiving node is For receiving the transmitting-receiving node of terminal uplink signal；
S602, the timing change and second of upward signal of the terminal received according to the first transmitting-receiving node The timing change of the upward signal of the terminal that transmitting-receiving node receives, determines corrected parameter, the second transmitting-receiving joint Point is the transmitting-receiving node for sending downstream signal to terminal；
S603, to terminal send adjust order, adjust order in carry corrected parameter so that terminal according to Corrected parameter determines the TA sending upward signal to the first transmitting-receiving node.
The executive agent of above step is transmitting-receiving node.This transmitting-receiving node can be the first transmitting-receiving node, Two transmitting-receiving nodes or UE access other transmitting-receiving nodes in community.This transmitting-receiving node can be AP, Antenna element etc. in RRE, RRH, RRU, relaying (Relay) node, base station or Home eNodeB There is the equipment of transmission-receiving function.
After transmitting-receiving node receives base station the 3rd control command, can receive at UE and first according to wireless signal Send out the distance change of transmission between node, and wireless signal transmits between UE and the second transmitting-receiving node Distance change determines corrected parameter.The distance transmitted between UE and transmitting-receiving node due to wireless signal again Change typically results in the UE upward signal time that transmitting-receiving node receives to be occurred changing, and transmitting-receiving node is the most logical Cross the upward signal received time change and perceive between UE distance change, therefore, transmitting-receiving Node can be received according to the timing change and second of the upward signal of the UE that the first transmitting-receiving node receives The timing change of the upward signal sending out the UE that node receives determines corrected parameter.
If the executive agent of above-mentioned steps is the first transmitting-receiving node, then this first transmitting-receiving node can be to second The timing changing value of the upward signal of the UE that transmitting-receiving node acquisition request the second transmitting-receiving node receives, goes forward side by side The timing changing value of the upward signal of the UE that one step receives according to the first transmitting-receiving node determines corrected parameter.
If the executive agent of above-mentioned steps is the second transmitting-receiving node, then this second transmitting-receiving node can be to first Transmitting-receiving node asks the timing changing value of the upward signal of the UE that the first transmitting-receiving node receives, and further The timing change of the upward signal of the UE received according to the second transmitting-receiving node determines corrected parameter.
If the executive agent of above-mentioned steps is other transmitting-receiving nodes that UE accesses in community, then this transmitting-receiving node The timing of the upward signal of the UE that can receive to first transmitting-receiving node acquisition request the first transmitting-receiving node Changing value, and the upward signal of the UE received to second transmitting-receiving node acquisition request the second transmitting-receiving node Regularly changing value, so that it is determined that corrected parameter.
The determination method of the timing advance TA that the embodiment of the present invention provides, transmitting-receiving node is in the control of base station Under, the corrected parameter sending TA to UE, make UE determine to this up transmitting-receiving node according to this corrected parameter Send the TA of upward signal, thus the upward signal improving UE transmission arrives in the expectation moment and receives up letter Number the accuracy of transmitting-receiving node.
Hereinafter control as a example by transmitting-receiving node sends to UE and carry the adjustment order of corrected parameter by base station again, right The determination method of the TA that the present invention provides is described in detail, as shown in Figure 7:
Transmitting-receiving node 1 is the first transmitting-receiving node, and transmitting-receiving node 2 is the second transmitting-receiving node.In 1TTI, nothing Line signal transmission range between transmitting-receiving node 1,2 and UE is D11, D12 respectively；At 2TTI, Wireless signal transmission range between transmitting-receiving node 1,2 and UE is D21, D22 respectively.So UE The downstream signal sent by detection transmitting-receiving node 2, it is possible to measure the descending timing from 1TTI to 2TTI Changing value be (D22-D12)/c.The upward signal that UE sends is not received yet with transmitting-receiving node 2, But received, by transmitting-receiving node 1, the upward signal that UE sends, therefore, UE needs to adjust up TA to ensure The upward signal that UE sends arrives transmitting-receiving node 2 in the transmitting-receiving node 1 desired moment.
For transmitting-receiving node 1, from 1TTI to 2TTI, wireless signal is at UE and transmitting-receiving node 1 Between transmission distance changed (D21-D11), then the adjustment amount of TA should be (D21-D11)/c.Therefore, Transmitting-receiving node 1 or transmitting-receiving node 2 or UE access other transmitting-receiving nodes in community and receive base station transmission The 3rd control command after, can send to UE and carry the adjustment order of corrected parameter, to ensure to work as UE When the changing value of the descending timing that measurement is arrived is for (D22-D12)/c, the TA amount that UE adjusts is D21-D11)/c。
The adjustment amount of up TA can be measured downstream signal with UE and obtain down by the corrected parameter equal to TA The product of the changing value of row timing, it may be assumed that NTA, new=NTA, old+α×TADL
Wherein, α i.e. represents the corrected parameter of TA.Owing to transmitting-receiving node 1 and transmitting-receiving node 2 are all by connecing The distance change that the time of the upward signal of the UE received changes and perceives between UE, therefore, D22- D12 correspondence T22-T12, wherein, T22 is that transmitting-receiving node 2 receives the up letter of UE after distance change Number (note: the moment here represents relative instant, such as relative to UE upward signal place TTI moment Starting point for the time of reception), T12 is transmitting-receiving node 2 was receiving the up letter of UE before distance change Number moment；Same, D21-D11 correspondence T21-T11, wherein, T21 is that transmitting-receiving node 1 is in distance Receiving the moment of UE upward signal after change, T11 is that transmitting-receiving node 1 received before distance change The moment of UE upward signal.
It is thereby possible to select α=(T21-T11)/(T22-T12).The value of α includes positive number, negative and 0, When the value of α is 1, above-mentioned formula is existing NTA, new=NTA, old+TADL。
After UE have received the adjustment order carrying α, can be according to NTA, new=NTA, old+α×TADLDetermine The TA of upward signal is sent to transmitting-receiving node 1.
Concrete, α can use various ways to determine, the upward signal that can be sent by U E such as: Uplink detection reference signal (Sounding Reference Signal, SRS) determines.Transmitting-receiving node 1 and the SRS that can be sent by UE of transmitting-receiving node 2, when knowing the arrival of the upward signal that UE sent Between.Such as: at 0TTI, wireless signal transmission range between transmitting-receiving node 1,2 and UE is respectively D01、D02；At 1TTI, wireless signal transmission range between transmitting-receiving node 1,2 and UE is respectively It is D11, D12.So for transmitting-receiving node 1, from 0TTI to 1TTI, wireless signal is at UE With the distance of transmission has changed (D11-D01) between transmitting-receiving node 1, the time of the corresponding SRS received Be changed to (T11-T01), then transmitting-receiving node 1 can be by detecting the due in of the SRS that UE sends, obtaining Know the changing value time of advent of the upward signal that UE sends, thus be calculated (T11-T01).Equally, Transmitting-receiving node 2 can also be calculated (T12-T02).Transmitting-receiving node 1 and transmitting-receiving node 2 can be the most above-mentioned The temporal information of upward signal, so that it is determined that the value of α is (T11-T01)/(T12-T02).
It should be noted that within a period of time, owing to the moving direction of UE is fixing, therefore (T11-T01)/(T12-T02) is generally more or less the same with the value of (T21-T11)/(T22-T12), accordingly, it is capable to Enough ensure the precision that TA adjusts.Once transmitting-receiving node detects that the value of α there occurs significant change, transmitting-receiving joint Point can also send adjustment signaling to UE and update the value of α.
Wherein, α can be determined by transmitting-receiving node 1 or transmitting-receiving node 2 or other transmitting-receiving nodes.Such as: receive Send out after node 2 measures and obtain (T12-T02), can be by the result measured by transmitting-receiving node 1 and transmitting-receiving joint Wireline interface between point 2 passes to transmitting-receiving node 1, transmitting-receiving node 1 calculate the value of α；Or, can With by third party device, such as: terminal accesses other nodes in community or by the way of wired Other equipment being connected to transmitting-receiving node 1 and transmitting-receiving node 2 determine α, and transmitting-receiving node 1 is measured and obtained (T11-T01) after, measurement result can be sent to third party device, transmitting-receiving node 2 is measured and is obtained (T12-T02) after, it is also possible to measurement result is sent to third party device, and is come by this third party device Determine the value of α.
As a kind of special circumstances, when transmitting-receiving node is sent in the case of the corrected parameter of UE is 0, Then transmitting-receiving node is sent to the adjustment order of UE and can serve to indicate that UE no longer determines to the first transmitting-receiving joint Point sends the TA of upward signal.
Further, base station can be to the one or more transmitting-receivings in one or more communities that terminal accesses Node sends the 4th control command, the upward signal that the 4th control command sends according to terminal for instruction Timing change determine the TA adjustment amount of upward signal, and TA adjustment amount is carried in TA order Give terminal.After transmitting-receiving node receives the 4th adjustment order that base station sends, can send out according to terminal The timing change of the upward signal sent determines TA adjustment amount, and is carried in TA order by TA adjustment amount It is sent to terminal.
After UE receives TA order, can according to the TA adjustment amount carried in TA order, determine to First transmitting-receiving node sends the TA of upward signal.
According to NTA, new=NTA, old+(TA-31) × A determines to the first transmitting-receiving node transmission upward signal TA, wherein, NTA, newFor sending the TA, T of upward signal to the first transmitting-receiving nodeAFor TA adjustment amount, NTA, oldThe TA, A to the first transmitting-receiving node transmission upward signal that determine for terminal the last time are less than 16.
Wherein, TAThe adjustment amount of expression TA entrained by TA order, is sent according to terminal by transmitting-receiving node The timing change of upward signal determines, TASpan is 0～63.
Owing to the granularity of the TA adjustment amount in usual TA order is 16Ts, wherein 1Ts is about 1/30.72 (i.e. 0.52) microsecond, the integral multiple that granularity is 0.52 microsecond that therefore TA order adjusts.It means that only TA could be adjusted when the TA change of UE reaches 16Ts.And if the required precision that TA adjusts is such as 4Ts, Then can cause when the TA of UE changes and is less than 16Ts more than 4Ts, it is impossible to ensure that transmitting-receiving node is able to receive that The upward signal sent to UE.Therefore, optionally, the adjustment granularity of TA can be reduced, take A and be less than 16, Such as: can be 4Ts by the particle size reduction of adjustment TA, thus realize the TA of UE is adjusted to certain mistake Within the scope of difference.
One of ordinary skill in the art will appreciate that all or part of stream realizing in above-described embodiment method Journey, can be by computer program and completes to instruct relevant hardware, and described program can be stored in In one computer read/write memory medium, this program is upon execution, it may include such as the enforcement of above-mentioned each method The flow process of example.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc..
The terminal one of the determination method for performing above-mentioned timing advance TA that Fig. 8 provides for the present invention The structural representation of individual embodiment, as shown in Figure 8, this terminal includes: receptor 11 and processor 12； Wherein:
Receptor 11, for receiving the characteristic information of the downstream signal of the first transmitting-receiving node and measuring descending letter Number measurement time information, the first transmitting-receiving node is the transmitting-receiving node for receiving terminal uplink signal, special Reference breath is for distinguishing the downstream signal that different transmitting-receiving node sends.
Processor 12, for measuring the moment, measures the downstream signal that characteristic information is corresponding, according to measurement Result determines the timing change of downstream signal, and changes according to the timing of downstream signal, determines and receives to first Send out node and send the timing advance TA of upward signal.
On this basis, further, as another embodiment of terminal of the present invention, receptor 11 receives To the characteristic information of downstream signal include one or more in following information: during the transmission of downstream signal Between, the sequence of the frequency point information of downstream signal, downstream signal numbering, the transmission antenna/antenna of downstream signal Port number, the transmission antenna/antenna port of downstream signal are numbered, for generating the signal sequence of downstream signal The depositor initial value information cell identity information corresponding with the first transmitting-receiving node of row.
Further, the measurement time information that receptor 11 receives may include that the transmission week of downstream signal Phase and time migration information, time migration information is for representing transmission downstream signal within each transmission cycle Shift time away from each transmission cycle initial time.
Processor 12 specifically may be used for: at symbol corresponding to the downstream signal measured in the moment and frequency, Measuring the signal sequence of downstream signal, wherein, symbol and frequency that downstream signal is corresponding are set in advance by terminal Put, or determined by terminal transmission time and frequency point information, or raw according to cell identity information by terminal Become；
Or, measuring the moment, measuring and transmission antenna/antenna port number and/or transmission antenna/antenna The signal sequence of the downstream signal that port numbering is corresponding.
Processor 12 the most specifically may be used for: by signal sequence and the downstream signal of the downstream signal of measurement Original series carries out associative operation, obtains the timing change of downstream signal, original series by terminal according under Row signal sequence numbering or for generate downstream signal signal sequence depositor initial value information, Or cell identity information generates.
The terminal that above example provides, the determination method for the timing advance TA of present invention offer is relative Should, the detailed process of its determination method performing timing advance TA can be found in embodiment of the method, the most superfluous State.
The terminal that the embodiment of the present invention provides, controls transmitting-receiving node by base station and sends the first transmitting-receiving to UE The characteristic information of the downstream signal that node sends and measurement time information, make UE in this measurement measure of time Corresponding downstream signal, obtains and determines the TA sending upward signal to this first transmitting-receiving node.Thus improve The upward signal that UE sends arrives the accuracy of the transmitting-receiving node receiving upward signal in the expectation moment.
The base station one of the determination method for performing above-mentioned timing advance TA that Fig. 9 provides for the present invention The structural representation of individual embodiment, as it is shown in figure 9, this base station may include that processor 21 and transmitter 22；Wherein:
Processor 21, is used for determining the first transmitting-receiving node, and the first transmitting-receiving node is for being used for receiving terminal uplink The transmitting-receiving node of signal；
Transmitter 22, for the one or more transmitting-receiving nodes in one or more communities that terminal accesses Sending the first control command, the first control command sends the descending of the first transmitting-receiving node for instruction to terminal The characteristic information of signal and the measurement time information of measurement downstream signal, characteristic information is used for distinguishing different receipts Send out the downstream signal that node sends.
Further, transmitter 22 can be also used for: sends the second control command to the second transmitting-receiving node, Second control command is measuring, for instruction, the measurement moment that time information is corresponding, reduces to terminal transmission The power of all or part of downstream signal, or the power of all or part of downstream signal sent to terminal Being 0, the second transmitting-receiving node is the transmitting-receiving node for sending downstream signal to terminal.
The base station that above example provides, the determination method for the timing advance TA of present invention offer is relative Should, the detailed process of its determination method performing timing advance TA can be found in embodiment of the method, the most superfluous State.
The base station that the embodiment of the present invention provides, controls transmitting-receiving node and sends the first transmitting-receiving node transmission to UE Downstream signal characteristic information and measure time information so that UE is corresponding in this measurement measure of time Downstream signal, obtains and determines the TA sending upward signal to this first transmitting-receiving node.Thus improve UE and send out The upward signal sent arrives the accuracy of the transmitting-receiving node receiving upward signal in the expectation moment.
The transmitting-receiving joint of the determination method for performing above-mentioned timing advance TA that Figure 10 provides for the present invention The structural representation of one embodiment of point, as shown in Figure 10, this transmitting-receiving node includes: receptor 31 He Transmitter 32；
Receptor 31, for receiving the first control command that base station sends, the first control command is used for indicating Send the characteristic information of the downstream signal of the first transmitting-receiving node to terminal and measure the measurement moment of downstream signal Information, the first transmitting-receiving node is the transmitting-receiving node for receiving terminal uplink signal, and characteristic information is used for district Divide the downstream signal that different transmitting-receiving nodes send；
Transmitter 32, for sending characteristic information to terminal and measuring time information, so that terminal is being measured Moment measures the downstream signal that characteristic information is corresponding.
On this basis, further, as another embodiment of transmitting-receiving node of the present invention, receptor 31 Can be also used for: receive the second control command that base station sends, the second control command is being measured for instruction In the measurement moment that time information is corresponding, reduce the power of all or part of downstream signal sent to terminal, Or, the power to all or part of downstream signal of terminal transmission is 0；
Transmitter 32 can be also used for: is measuring the measurement moment that time information is corresponding, reduces power to end End sends downstream signal, or is 0 to the power of all or part of downstream signal of terminal transmission.
The transmitting-receiving node that above example provides, for the determination method of the timing advance TA that the present invention provides Corresponding, the detailed process of its determination method performing timing advance TA can be found in embodiment of the method, no Repeat again.
The transmitting-receiving node that the embodiment of the present invention provides, under the control of base station, sends the first transmitting-receiving to UE The characteristic information of the downstream signal that node sends and measurement time information, so that UE surveyed in this measurement time The downstream signal that amount is corresponding, obtains and determines the TA sending upward signal to this first transmitting-receiving node.Thus carry The upward signal that high UE sends arrives the accuracy of the transmitting-receiving node receiving upward signal in the expectation moment.
Another embodiment of the terminal that the present invention provides, specifically can be found in shown in Fig. 8, and this terminal is permissible Including: receptor 11 and processor 12；Wherein:
Receptor 11, is used for receiving adjustment order, adjusts in order and carry for sending out to the first transmitting-receiving node Sending the corrected parameter of the timing advance TA of upward signal, the first transmitting-receiving node is for being used for receiving terminal uplink The transmitting-receiving node of signal；
Processor 12, for according to corrected parameter, determining the TA sending upward signal to the first transmitting-receiving node.
Further, the corrected parameter that receptor 11 receives can be: the end that the first transmitting-receiving node receives The timing variable quantity of upward signal that end sends, it is up that the terminal received with the second transmitting-receiving node sends The ratio of the timing variable quantity of signal, the second transmitting-receiving node is the transmitting-receiving for sending downstream signal to terminal Node.
Accordingly, processor 12 can be specifically for: according to NTA, new=NTA, old+α×TADLDetermine to First transmitting-receiving node sends the TA of upward signal, wherein, NTA, newFor sending up to the first transmitting-receiving node The TA of signal, TADLFor terminal receive second transmitting-receiving node send downstream signal timing change Amount, α is corrected parameter, NTA, oldFor terminal the last time determine to first transmitting-receiving node send up letter Number TA.
If corrected parameter is 0, then adjusts order and be used for indicating processor 12 no longer to determine to the first transmitting-receiving joint Point sends the TA of upward signal.
Further, receptor 11 can be also used for: receive TA order, TA order is carried for First transmitting-receiving node sends the TA adjustment amount of upward signal；
Processor 12 can be also used for: according to TA adjustment amount, determines and sends up to the first transmitting-receiving node The TA of signal.
Further, processor 12 can be specifically for: according to NTA, new=NTA, old+(TA-31)×A Determine the TA sending upward signal to the first transmitting-receiving node, wherein, NTA, newFor sending out to the first transmitting-receiving node Send the TA of upward signal, TAFor TA adjustment amount, NTA, oldFor terminal the last time determine to first receive Send out node and send the TA, A of upward signal less than 16.
The terminal that above example provides, the determination method for the timing advance TA of present invention offer is relative Should, the detailed process of its determination method performing timing advance TA can be found in embodiment of the method, the most superfluous State.
The terminal that the embodiment of the present invention provides, controls transmitting-receiving node by base station and sends the correction of TA to UE Parameter, makes UE determine the TA sending upward signal to this up transmitting-receiving node according to this corrected parameter, from And the upward signal improving UE transmission is expecting that the moment arrives the accurate of the transmitting-receiving node of reception upward signal Degree.
The base station of the determination method for performing above-mentioned timing advance TA that Figure 11 provides for the present invention is again The structural representation of one embodiment, as shown in figure 11, this base station includes: transmitter 41；
Transmitter 41, for the one or more transmitting-receiving nodes in one or more communities that terminal accesses Sending the 3rd control command, the 3rd control command is used for indicating acquisition terminal to send to the first transmitting-receiving node The corrected parameter of the timing advance TA of row signal, and for instruction, corrected parameter is sent to terminal, the One transmitting-receiving node is the transmitting-receiving node for receiving terminal uplink signal.
Further, if corrected parameter is 0, then transmitter 41 can be also used for: accessed to terminal One or more transmitting-receiving nodes in individual or multiple community send the 4th control command, and the 4th control command is used The TA adjustment amount of upward signal is determined according to the timing change of the upward signal of terminal transmission in instruction, and will TA adjustment amount carries and is sent to terminal in TA order.
The base station that above example provides, the determination method for the timing advance TA of present invention offer is relative Should, the detailed process of its determination method performing timing advance TA can be found in embodiment of the method, the most superfluous State.
The base station that the embodiment of the present invention provides, base station controls transmitting-receiving node and sends the corrected parameter of TA to UE, Make UE determine the TA sending upward signal to this up transmitting-receiving node according to this corrected parameter, thus improve The upward signal that UE sends arrives the accuracy of the transmitting-receiving node receiving upward signal in the expectation moment.
The transmitting-receiving node of the determination method performing above-mentioned timing advance TA that Figure 12 provides for the present invention The structural representation of another embodiment, as shown in figure 12, this transmitting-receiving node includes: receptor 51, Processor 52 and transmitter 53；Wherein:
Receptor 51, for receiving the 3rd control command that base station sends, the 3rd control command is used for indicating Obtaining the corrected parameter that terminal sends the timing advance TA of upward signal to the first transmitting-receiving node, first receives Sending out node is the transmitting-receiving node for receiving terminal uplink signal；
Processor 52, the timing for the upward signal of the terminal received according to the first transmitting-receiving node changes And the second timing change of the upward signal of terminal that receive of transmitting-receiving node, determine corrected parameter, the Two transmitting-receiving nodes are the transmitting-receiving node for sending downstream signal to terminal；
Transmitter 53, adjusts order for sending to terminal, adjusts in order and carry corrected parameter, so that Terminal determines the TA sending upward signal to the first transmitting-receiving node according to corrected parameter.
On the basis of previous embodiment, further, transmitter 53 can be also used for: to primary nodal point The timing variable quantity of the upward signal of the terminal that acquisition request the first transmitting-receiving node receives, and/or, to The timing variable quantity of the upward signal of the terminal that two node acquisition request the second transmitting-receiving nodes receive；
Processor 52 can also be specifically for: the up letter that the terminal received by the first transmitting-receiving node sends Number timing variable quantity, the timing change of the upward signal that the terminal received with the second transmitting-receiving node sends The ratio of amount is defined as corrected parameter.
Further, if corrected parameter is 0, then the adjustment order that transmitter 53 sends is used for indicating terminal No longer determine the TA sending upward signal to the first transmitting-receiving node.
Further, transmitter 53 can be also used for: sends TA order to terminal, takes in TA order Band to first transmitting-receiving node send upward signal TA adjustment amount, TA adjustment amount according to terminal send upper The timing change of row signal determines.
The transmitting-receiving node that above example provides, for the determination method of the timing advance TA that the present invention provides Corresponding, the detailed process of its determination method performing timing advance TA can be found in embodiment of the method, no Repeat again.
The transmitting-receiving node that the embodiment of the present invention provides, under the control of base station, sends the correction of TA to UE Parameter, makes UE determine the TA sending upward signal to this up transmitting-receiving node according to this corrected parameter, from And the upward signal improving UE transmission is expecting that the moment arrives the accurate of the transmitting-receiving node of reception upward signal Degree.
Last it is noted that above example is only in order to illustrate technical scheme, rather than to it Limit；Although the present invention being described in detail with reference to previous embodiment, the ordinary skill of this area Personnel it is understood that the technical scheme described in foregoing embodiments still can be modified by it, or Person carries out equivalent to wherein portion of techniques feature；And these amendments or replacement, do not make corresponding skill The essence of art scheme departs from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (38)

1. the determination method of a timing advance TA, it is characterised in that including:
When the characteristic information receiving the downstream signal of the first transmitting-receiving node and the measurement measuring described downstream signal Quarter information, described first transmitting-receiving node is the transmitting-receiving node for receiving terminal uplink signal, described feature Information is for distinguishing the downstream signal that different transmitting-receiving node sends, and described measurement time information includes: described The transmission cycle of downstream signal and time migration information, described time migration information is for representing at each Send and send the described downstream signal shift time away from each transmission cycle initial time in the cycle, wherein, to It is the second transmitting-receiving node that described terminal sends the transmitting-receiving node of downstream signal, described first transmitting-receiving node and institute Stating the second transmitting-receiving node is different nodes；
In the described measurement moment, measure the downstream signal that described characteristic information is corresponding, and according to measurement result Determine the timing change of described downstream signal；
Timing change according to described downstream signal, determines and sends upward signal to described first transmitting-receiving node Timing advance TA.
Method the most according to claim 1, it is characterised in that the characteristic information of described downstream signal Including one or more in following information: described downstream signal send time, described downstream signal Frequency point information, the sequence numbering of described downstream signal, the transmission antenna/antenna port number of described downstream signal Mesh, the transmission antenna/antenna port of described downstream signal are numbered, for generating the signal of described downstream signal The cell identity information that the depositor initial value information of sequence is corresponding with described first transmitting-receiving node.
Method the most according to claim 2, it is characterised in that described downstream signal includes detection ginseng Examine signal CRS or channel state information reference signals CSI-RS.
Method the most according to claim 2, it is characterised in that described in the described measurement moment, surveys The downstream signal corresponding to described characteristic information of amount, particularly as follows:
At symbol corresponding to the described described downstream signal measured in the moment and frequency, measure described descending letter Number signal sequence, wherein, symbol and frequency that described downstream signal is corresponding are pre-set by described terminal, Or determined according to described transmission time and described frequency point information by described terminal, or by described terminal root Generate according to described cell identity information；
Or, in the described measurement moment, measure and described transmission antenna/antenna port number, and/or described The signal sequence of the described downstream signal that transmission antenna/antenna port numbering is corresponding.
5. according to the method described in any one of claim 2-4, it is characterised in that described according to measuring knot Fruit determines the timing change of described downstream signal, particularly as follows:
The signal sequence of the described downstream signal measured is carried out relevant to the original series of described downstream signal Operation, obtains the timing change of described downstream signal, described original series by described terminal according under described The sequence of row signal is numbered or for generating the depositor initial value of the signal sequence of described downstream signal Information or described cell identity information generate.
6. the determination method of a timing advance TA, it is characterised in that including:
Determine that the first transmitting-receiving node, described first transmitting-receiving node are the transmitting-receiving for receiving terminal uplink signal Node, wherein, the transmitting-receiving node sending downstream signal to described terminal is the second transmitting-receiving node, described the One transmitting-receiving node and described second transmitting-receiving node are different nodes；
One or more transmitting-receiving nodes in one or more communities that described terminal accesses send the first control System order, described first control command sends under described first transmitting-receiving node to described terminal for instruction The characteristic information of row signal and the measurement time information of the described downstream signal of measurement, described characteristic information is used for Distinguishing the downstream signal that different transmitting-receiving node sends, described measurement time information includes: described downstream signal The transmission cycle and time migration information, described time migration information for represent within each transmission cycle Send the described downstream signal shift time away from each transmission cycle initial time, so that described terminal is in institute State the measurement moment, measure the downstream signal that described characteristic information is corresponding, and determine according to measurement result described The timing change of downstream signal, changes according to the timing of described downstream signal, determines to described first transmitting-receiving Node sends the timing advance TA of upward signal.
Method the most according to claim 6, it is characterised in that also include:
Sending the second control command to described second transmitting-receiving node, described second control command exists for instruction The measurement moment that described measurement time information is corresponding, reduce to described terminal send the most descending The power of signal, or the power of all or part of downstream signal sent to described terminal is 0, described Second transmitting-receiving node is the transmitting-receiving node for sending downstream signal to described terminal.
8. the determination method of a timing advance TA, it is characterised in that including:
Receiving the first control command that base station sends, described first control command sends to terminal for instruction The characteristic information of the downstream signal of the first transmitting-receiving node and the measurement time information of the described downstream signal of measurement, Described first transmitting-receiving node is the transmitting-receiving node for receiving described terminal uplink signal, described characteristic information For distinguishing the downstream signal that different transmitting-receiving node sends, described measurement time information includes: described descending The transmission cycle of signal and time migration information, described time migration information is for representing in each transmission week The described downstream signal shift time away from each transmission cycle initial time is sent, wherein, to described in phase It is the second transmitting-receiving node that terminal sends the transmitting-receiving node of downstream signal, described first transmitting-receiving node and described the Two transmitting-receiving nodes are different nodes；
Described characteristic information and described measurement time information is sent, so that described terminal is in institute to described terminal State and measure the moment and measure downstream signal corresponding to described characteristic information, and according to measurement result determine described under The timing change of row signal, changes according to the timing of described downstream signal, determines to described first transmitting-receiving joint Point sends the timing advance TA of upward signal.
Method the most according to claim 8, it is characterised in that also include:
Receiving the second control command that described base station sends, described second control command is for indicating described Measure the measurement moment that time information is corresponding, reduce all or part of downstream signal sent to described terminal Power, or, the power of all or part of downstream signal sent to described terminal is 0；
In the measurement moment that described measurement time information is corresponding, reduce power and send descending letter to described terminal Number, or the power of all or part of downstream signal sent to described terminal is 0.
10. the determination method of a timing advance TA, it is characterised in that including:
Receiving and adjust order, described adjustment is carried in order for sending upward signal to the first transmitting-receiving node The corrected parameter of timing advance TA, described first transmitting-receiving node is for receiving terminal uplink signal Transmitting-receiving node；
According to described corrected parameter, determine the TA sending upward signal to described first transmitting-receiving node；
Described corrected parameter is: the upward signal that the described terminal that described first transmitting-receiving node receives sends Timing variable quantity, the timing of the upward signal that the described terminal received with the second transmitting-receiving node sends becomes The ratio of change amount, described second transmitting-receiving node is the transmitting-receiving node for sending downstream signal to described terminal；
Described according to described corrected parameter, determine the timing sending upward signal to described first transmitting-receiving node Lead TA, particularly as follows:
According to NTA,new=NTA,old+α×TADLDetermine and send upward signal to described first transmitting-receiving node TA, wherein, NTA,newFor the described TA, TA sending upward signal to described first transmitting-receiving nodeDLFor The timing variable quantity of the downstream signal that described second transmitting-receiving node that described terminal receives sends, α is institute State corrected parameter, NTA,oldFor described terminal the last time determine to described first transmitting-receiving node send up The TA of signal.
11. methods according to claim 10, it is characterised in that if described corrected parameter is 0, The most described adjustment order is used for indicating described terminal no longer to determine to described first transmitting-receiving node and sends up letter Number TA.
12. methods according to claim 11, it is characterised in that described method also includes:
Receive TA order, described TA order is carried for sending up letter to described first transmitting-receiving node Number TA adjustment amount；
According to described TA adjustment amount, determine the TA sending upward signal to described first transmitting-receiving node.
13. methods according to claim 12, it is characterised in that described adjust according to described TA Amount, determines the TA sending upward signal to described first transmitting-receiving node, particularly as follows:
According to NTA,new=NTA,old+(TA-31) × A determines to the described first transmitting-receiving node up letter of transmission Number TA, wherein, NTA,newFor the described TA, T sending upward signal to described first transmitting-receiving nodeA For described TA adjustment amount, NTA,oldFor sending out to described first transmitting-receiving node of determining of described terminal the last time Send the TA of upward signal, described A less than 16.
The determination method of 14. 1 kinds of timing advance TA, it is characterised in that including:
One or more transmitting-receiving nodes in one or more communities that terminal accesses send the 3rd control life Order, described 3rd control command is used for indicating the described terminal of acquisition to send upward signal to the first transmitting-receiving node The corrected parameter of timing advance TA, and for instruction, described corrected parameter is sent to described terminal, Described first transmitting-receiving node is the transmitting-receiving node for receiving terminal uplink signal so that described terminal according to Described corrected parameter determines the TA sending upward signal to described first transmitting-receiving node；
Wherein, the described TA sending upward signal to described first transmitting-receiving node is that terminal is according to NTA,new= NTA,old+α×TADLDetermine, wherein, NTA,newSend up for described to described first transmitting-receiving node The TA of signal, TADLThe timing of downstream signal that the second transmitting-receiving node received for described terminal sends Variable quantity, α is described corrected parameter, NTA,oldFor described terminal the last time determine to described first receive Send out node and send the TA of upward signal.
15. methods according to claim 14, it is characterised in that described corrected parameter is: institute State the timing variable quantity of the upward signal that the described terminal that the first transmitting-receiving node receives sends, with described the The ratio of the timing variable quantity of the upward signal that described terminal that two transmitting-receiving nodes receive sends, described the Two transmitting-receiving nodes are the transmitting-receiving node for sending downstream signal to described terminal.
16. according to the method described in claims 14 or 15, it is characterised in that if described corrected parameter Being 0, the most described method also includes:
One or more transmitting-receiving nodes in one or more communities that described terminal accesses send the 4th control System order, the timing of the upward signal that described 4th control command sends according to described terminal for instruction becomes Change and determine the TA adjustment amount of described upward signal, and described TA adjustment amount is carried in TA order Give described terminal.
The determination method of 17. 1 kinds of timing advance TA, it is characterised in that including:
Receive the 3rd control command that base station sends, described 3rd control command be used for indicating acquisition terminal to First transmitting-receiving node sends the corrected parameter of the timing advance TA of upward signal, described first transmitting-receiving node For the transmitting-receiving node for receiving terminal uplink signal；
The timing change of the upward signal of the described terminal received according to described first transmitting-receiving node and the The timing change of the upward signal of the described terminal that two transmitting-receiving nodes receive, determines described corrected parameter, Described second transmitting-receiving node is the transmitting-receiving node for sending downstream signal to described terminal；
Sending to described terminal and adjust order, described adjustment in order carries described corrected parameter, so that institute State terminal and determine the TA sending upward signal to described first transmitting-receiving node according to described corrected parameter；
Wherein, the described TA sending upward signal to described first transmitting-receiving node is that terminal is according to NTA,new= NTA,old+α×TADLDetermine, wherein, NTA,newSend up for described to described first transmitting-receiving node The TA of signal, TADLThe downstream signal that described second transmitting-receiving node received for described terminal sends Regularly variable quantity, α is described corrected parameter, NTA,oldFor described terminal the last time determine to described One transmitting-receiving node sends the TA of upward signal.
18. methods according to claim 17, it is characterised in that described according to described first receipts Send out the timing change of the upward signal of described terminal that node receives and the second transmitting-receiving node receives The timing change of the upward signal of described terminal, determines described corrected parameter, specifically includes:
The described terminal received to the first transmitting-receiving node described in described first transmitting-receiving node acquisition request upper The timing variable quantity of row signal, and/or, to the second transmitting-receiving joint described in described second transmitting-receiving node acquisition request The timing variable quantity of the upward signal of the described terminal that point receives；
The timing variable quantity of the upward signal that the described terminal received by described first transmitting-receiving node sends, The ratio of the timing variable quantity of the upward signal that the described terminal received with described second transmitting-receiving node sends It is defined as described corrected parameter.
19. methods according to claim 18, it is characterised in that if described corrected parameter is 0, The most described adjustment order is used for indicating described terminal no longer to determine to described first transmitting-receiving node and sends up letter Number TA.
20. methods according to claim 19, it is characterised in that described method also includes:
Send TA order to described terminal, described TA order is carried and sends to described first transmitting-receiving node The TA adjustment amount of upward signal, the timing of the upward signal that described TA adjustment amount sends according to described terminal Change determines.
21. 1 kinds of terminals, it is characterised in that including:
Receptor, for receiving the characteristic information of the downstream signal of the first transmitting-receiving node and measuring described descending The measurement time information of signal, described first transmitting-receiving node is for receiving the transmitting-receiving of terminal uplink signal joint Point, described characteristic information is for distinguishing the downstream signal that different transmitting-receiving node sends, and described receptor receives To described measurement time information include: the transmission cycle of described downstream signal and time migration information, institute State time migration information for representing that sending described downstream signal within each transmission cycle sends week away from each The shift time of phase initial time, wherein, the transmitting-receiving node sending downstream signal to described terminal is second Transmitting-receiving node, described first transmitting-receiving node and described second transmitting-receiving node are different nodes；
Processor, in the described measurement moment, measuring the downstream signal that described characteristic information is corresponding, root Determine the timing change of described downstream signal according to measurement result, and change according to the timing of described downstream signal, Determine the timing advance TA sending upward signal to described first transmitting-receiving node.
22. terminals according to claim 21, it is characterised in that described receptor receives The characteristic information of described downstream signal includes one or more in following information: sending out of described downstream signal Send time, the frequency point information of described downstream signal, the sequence numbering of described downstream signal, described descending letter Number transmission antenna/antenna port number, the transmission antenna/antenna port numbering of described downstream signal, be used for The depositor initial value information of the signal sequence generating described downstream signal is corresponding with described first transmitting-receiving node Cell identity information.
23. terminals according to claim 22, it is characterised in that described processor specifically for: At symbol corresponding to the described described downstream signal measured in the moment and frequency, measure described downstream signal Signal sequence, wherein, symbol and frequency that described downstream signal is corresponding are pre-set by described terminal, or Person is determined according to described transmission time and described frequency point information by described terminal, or by described terminal according to Described cell identity information generates；
Or, in the described measurement moment, measure and described transmission antenna/antenna port number, and/or described The signal sequence of the described downstream signal that transmission antenna/antenna port numbering is corresponding.
24. according to the terminal described in claim 22 or 23, it is characterised in that described processor also has Body is used for: carried out with the original series of described downstream signal by the signal sequence of described downstream signal measured Associative operation, obtain described downstream signal timing change, described original series by described terminal according to institute State the sequence numbering of downstream signal or for generating at the beginning of the depositor of the signal sequence of described downstream signal Initial value information or described cell identity information generate.
25. 1 kinds of base stations, it is characterised in that including:
Processor, is used for determining the first transmitting-receiving node, and described first transmitting-receiving node is for being used for receiving terminal The transmitting-receiving node of row signal, wherein, the transmitting-receiving node sending downstream signal to described terminal is the second transmitting-receiving Node, described first transmitting-receiving node and described second transmitting-receiving node are different nodes；
Transmitter, for the one or more transmitting-receiving joints in one or more communities that described terminal accesses Point sends the first control command, and described first control command sends described first for instruction to described terminal The characteristic information of the downstream signal of transmitting-receiving node and the measurement time information of the described downstream signal of measurement, described Characteristic information is for distinguishing the downstream signal that different transmitting-receiving node sends, and described measurement time information includes: The transmission cycle of described downstream signal and time migration information, described time migration information is for representing often The described downstream signal shift time away from each transmission cycle initial time is sent in the individual transmission cycle, so that Described terminal, in the described measurement moment, measures the downstream signal that described characteristic information is corresponding, and according to measurement Result determines the timing change of described downstream signal, changes according to the timing of described downstream signal, determine to Described first transmitting-receiving node sends the timing advance TA of upward signal.
26. base stations according to claim 25, it is characterised in that described transmitter is additionally operable to: Sending the second control command to the second transmitting-receiving node, described second control command is for indicating in described measurement In the measurement moment that time information is corresponding, reduce the merit of all or part of downstream signal sent to described terminal Rate, or the power of all or part of downstream signal sent to described terminal is 0, described second transmitting-receiving Node is the transmitting-receiving node for sending downstream signal to described terminal.
27. 1 kinds of transmitting-receiving nodes, it is characterised in that including:
Receptor, for receiving the first control command that base station sends, described first control command is used for referring to Show to terminal send the first transmitting-receiving node downstream signal characteristic information and measure described downstream signal survey Amount time information, described first transmitting-receiving node is the transmitting-receiving node for receiving described terminal uplink signal, Described characteristic information is for distinguishing the downstream signal that different transmitting-receiving node sends, described measurement time information bag Including: the transmission cycle of described downstream signal and time migration information, described time migration information is used for representing The described downstream signal shift time away from each transmission cycle initial time is sent within each transmission cycle, Wherein, the transmitting-receiving node sending downstream signal to described terminal is the second transmitting-receiving node, described first transmitting-receiving Node and described second transmitting-receiving node are different nodes；
Transmitter, for sending described characteristic information and described measurement time information to described terminal, so that Described terminal measures, described, the downstream signal that the described characteristic information of moment measurement is corresponding, and according to measuring knot Fruit determines the timing change of described downstream signal, changes according to the timing of described downstream signal, determines to institute State the first transmitting-receiving node and send the timing advance TA of upward signal.
28. transmitting-receiving nodes according to claim 27, it is characterised in that described receptor is also used In: receiving the second control command that described base station sends, described second control command is for indicating described Measure the measurement moment that time information is corresponding, reduce all or part of downstream signal sent to described terminal Power, or, the power of all or part of downstream signal sent to described terminal is 0；
Described transmitter is additionally operable to: in the measurement moment that described measurement time information is corresponding, reduce power to Described terminal sends downstream signal, or the power of all or part of downstream signal sent to described terminal It is 0.
29. 1 kinds of terminals, it is characterised in that including:
Receptor, is used for receiving adjustment order, and described adjustment in order is carried for the first transmitting-receiving node Sending the corrected parameter of the timing advance TA of upward signal, described first transmitting-receiving node is for being used for receiving end The transmitting-receiving node of end upward signal；
Processor, for according to described corrected parameter, determines and sends up letter to described first transmitting-receiving node Number TA；
The described corrected parameter that described receptor receives is: the described end that described first transmitting-receiving node receives The timing variable quantity of upward signal that end sends, the described terminal received with the second transmitting-receiving node sends The ratio of the timing variable quantity of upward signal, described second transmitting-receiving node is under sending to described terminal The transmitting-receiving node of row signal；
Described processor specifically for: according to NTA,new=NTA,old+α×TADLDetermine and receive to described first Send out node and send the TA of upward signal, wherein, NTA,newSend to described first transmitting-receiving node for described The TA of row signal, TADLDownstream signal for the described second transmitting-receiving node transmission that described terminal receives Timing variable quantity, α is described corrected parameter, NTA,oldFor described terminal the last time determine to described First transmitting-receiving node sends the TA of upward signal.
30. terminals according to claim 29, it is characterised in that if described corrected parameter is 0, The most described adjustment order is used for indicating described processor no longer to determine and sends up to described first transmitting-receiving node The TA of signal.
31. terminals according to claim 30, it is characterised in that described receptor is additionally operable to: Receive TA order, described TA order is carried for sending upward signal to described first transmitting-receiving node TA adjustment amount；
Described processor is additionally operable to: according to described TA adjustment amount, determines and sends to described first transmitting-receiving node The TA of upward signal.
32. terminals according to claim 31, it is characterised in that described processor specifically for: According to NTA,new=NTA,old+(TA-31) × A determines to described first transmitting-receiving node transmission upward signal TA, wherein, NTA,newFor the described TA, T sending upward signal to described first transmitting-receiving nodeAFor institute State TA adjustment amount, NTA,oldFor described terminal the last time determine to described first transmitting-receiving node send on The TA of row signal, described A are less than 16.
33. 1 kinds of base stations, it is characterised in that including:
Transmitter, sends out for the one or more transmitting-receiving nodes in one or more communities that terminal accesses The 3rd control command, described 3rd control command is sent to be used for indicating the described terminal of acquisition to the first transmitting-receiving node Send the corrected parameter of the timing advance TA of upward signal, and for instruction, described corrected parameter is sent To described terminal, described first transmitting-receiving node is the transmitting-receiving node for receiving terminal uplink signal, so that Described terminal determines the TA sending upward signal to described first transmitting-receiving node according to described corrected parameter；
Wherein, the described TA sending upward signal to described first transmitting-receiving node is that terminal is according to NTA,new= NTA,old+α×TADLDetermine, wherein, NTA,newSend up for described to described first transmitting-receiving node The TA of signal, TADLThe timing of downstream signal that the second transmitting-receiving node received for described terminal sends Variable quantity, α is described corrected parameter, NTA,oldFor described terminal the last time determine to described first receive Send out node and send the TA of upward signal.
34. base stations according to claim 33, it is characterised in that if described corrected parameter is 0, The most described transmitter is additionally operable to: the one or more receipts in one or more communities that described terminal accesses Sending out node and send the 4th control command, described 4th control command sends according to described terminal for instruction The timing change of upward signal determines the TA adjustment amount of described upward signal, and is taken by described TA adjustment amount Band is sent to described terminal in TA order.
35. 1 kinds of transmitting-receiving nodes, it is characterised in that including:
Receptor, for receiving the 3rd control command that base station sends, described 3rd control command is used for referring to Show the corrected parameter obtaining the timing advance TA that terminal sends upward signal to the first transmitting-receiving node, described First transmitting-receiving node is the transmitting-receiving node for receiving terminal uplink signal；
Processor, for determining of the upward signal of described terminal that receives according to described first transmitting-receiving node The timing change of the upward signal of the described terminal that Shi Bianhua and the second transmitting-receiving node receive, determines institute Stating corrected parameter, described second transmitting-receiving node is the transmitting-receiving node for sending downstream signal to described terminal；
Transmitter, adjusts order for sending to described terminal, and described adjustment in order carries described correction Parameter, so that described terminal determines according to described corrected parameter sends up letter to described first transmitting-receiving node Number TA；
Wherein, the described TA sending upward signal to described first transmitting-receiving node is that terminal is according to NTA,new= NTA,old+α×TADLDetermine, wherein, NTA,newSend up for described to described first transmitting-receiving node The TA of signal, TADLThe downstream signal that described second transmitting-receiving node received for described terminal sends Regularly variable quantity, α is described corrected parameter, NTA,oldFor described terminal the last time determine to described One transmitting-receiving node sends the TA of upward signal.
36. transmitting-receiving nodes according to claim 35, it is characterised in that described transmitter is also used Upper in: the described terminal received to the first transmitting-receiving node described in described first transmitting-receiving node acquisition request The timing variable quantity of row signal, and/or, to the second transmitting-receiving joint described in described second transmitting-receiving node acquisition request The timing variable quantity of the upward signal of the described terminal that point receives；
Described processor specifically for: it is upper that the described terminal that received by described first transmitting-receiving node sends The timing variable quantity of row signal, with the up letter of the described terminal transmission that described second transmitting-receiving node receives Number the ratio of timing variable quantity be defined as described corrected parameter.
37. transmitting-receiving nodes according to claim 36, it is characterised in that if described corrected parameter Being 0, the described adjustment order that the most described transmitter sends is used for indicating described terminal no longer to determine to described First transmitting-receiving node sends the TA of upward signal.
38. according to the transmitting-receiving node described in claim 37, it is characterised in that described transmitter is also used In: send TA order to described terminal, described TA order is carried and sends to described first transmitting-receiving node The TA adjustment amount of upward signal, the timing of the upward signal that described TA adjustment amount sends according to described terminal Change determines.
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