CN110062455A - The determination method and device of uplink timing advance, storage medium, electronic device - Google Patents
The determination method and device of uplink timing advance, storage medium, electronic device Download PDFInfo
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- CN110062455A CN110062455A CN201810055173.1A CN201810055173A CN110062455A CN 110062455 A CN110062455 A CN 110062455A CN 201810055173 A CN201810055173 A CN 201810055173A CN 110062455 A CN110062455 A CN 110062455A
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- Prior art keywords
- terminal
- timing
- cell
- access signal
- accidental access
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
Abstract
The present invention provides a kind of determination method and device of uplink timing advance, storage medium, electronic devices, wherein, the described method includes: the cell common timing lead that will acquire is sent to the terminal in cell, wherein, the cell common timing lead is used to indicate the sending time of the terminal adjustment accidental access signal；Accidental access signal after receiving the adjustment sending time that the terminal is sent；The corresponding timing adjustment parameter of the terminal is obtained by the accidental access signal, and the timing adjustment parameter is sent to the terminal in the cell, wherein, the timing adjustment parameter is used to indicate the terminal and determines uplink timing advance according to the timing adjustment parameter；It can solve uplink timing advance traditional in the related technology through the invention and determine that method need to problem for the maximum distance design duration of user and base station very long random access channel to cause cost of implementation excessive.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of uplink timing advance determination method and device, deposit
Storage media, electronic device.
Background technique
In a cellular communication system, the user for accessing the same base station usually has far and has closely.If all users are with same
A clock sends signal as reference, then the signal that the user close from base station issues first reaches base station, and far from base station
The signal evening that user issues reaches base station.In the existing communication technology, nonsynchronous situation between above-mentioned user may
Extra interference is brought, system performance is caused to decline, particularly with based on OFDMA (Orthogonal Frequency
Division Multiple Access, orthogonal frequency division multiple access) technology communication system (such as long evolving system), it is above-mentioned to ask
Topic is particularly acute.
OFDMA system at the same time scheduling multi-user carry out uplink traffic transmission when, it is necessary to assure between all users
It is asynchronous will be within the protection scope of CP (Cyclic prefix, cyclic prefix)；Fig. 1 is OFDMA system in the related technology
Uplink synchronous schematic diagram otherwise will lead to as shown in Figure 1, asynchronous in the protection scope of CP between multiple users
Sub-carrier orthogonality is in turn resulted in by broken ring and is generated interference between multi-user.
It is solved in view of the above-mentioned problems, generalling use timing advance mechanism in the related technology, the base of timing advance mechanism
Present principles are: user i obtains oneself Timing Advance τ between base station by certain modei, plan t moment is reached
The signal of base station, the time advance actually sent are t- τi.All users take same strategy, may make so multiple
The signal of user is just able to maintain synchronization when reaching base station.
During above-mentioned user obtains oneself Timing Advance between base station, multi-pass crosses user in the related technology
Accidental access signal first is issued to base station, then base station is detected the accidental access signal to obtain the timing of the user and mention
Preceding amount；Base station passes through the signaled user Timing Advance later.The above method be suitable for terrestrial cellular cell, but for
Then there is certain defect in the satellite cell in satellite communication system.In satellite cell, terrestrial user is very remote apart from satellite, if
Using same Timing Advance measurement mechanism, then need to design duration very long random access channel, and then lead to reality
Existing increased costs.
For in the related technology, traditional uplink timing advance determines that method need to be directed to the maximum distance of user and base station
Problem of the design duration very long random access channel to cause cost of implementation excessive, not yet proposes have in the related technology
The solution of effect.
Summary of the invention
The embodiment of the invention provides a kind of determination method and device of uplink timing advance, storage medium, electronics dresses
It sets, determines that method need to be directed to the maximum distance of user and base station at least to solve uplink timing advance traditional in the related technology
Problem of the design duration very long random access channel to cause cost of implementation excessive.
According to one embodiment of present invention, a kind of determination method of uplink timing advance is provided, comprising:
The cell common timing lead that will acquire is sent to the terminal in cell, wherein the cell common timing
Lead is used to indicate the sending time of the terminal adjustment accidental access signal；
Accidental access signal after receiving the adjustment sending time that the terminal is sent；
The corresponding timing adjustment parameter of the terminal is obtained by the accidental access signal, and the timing adjustment is joined
The terminal that number is sent in the cell, wherein the timing adjustment parameter is used to indicate the terminal according to the timing tune
Whole parameter determines uplink timing advance.
It is optionally, described that the corresponding timing adjustment parameter of the terminal is obtained by the accidental access signal, comprising:
The first Timing Advance of the terminal is obtained according to the accidental access signal；
The timing adjustment parameter: the cell common timing lead is obtained according at least one of following object；
First Timing Advance.
Optionally, the terminal timing adjustment parameter being sent in the cell, comprising:
The terminal timing adjustment parameter being sent to by the bearing mode of at least one of in the cell:
PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel), PDSCH (Physical
Downlink Shared Channel, Physical Downlink Shared Channel).
Optionally, the cell common timing lead that will acquire is sent to the terminal in cell, comprising:
The shortest path between cell described in base station distance is obtained, the cell of the cell is obtained according to the shortest path
Common timing lead；
The terminal cell common timing lead being sent in the cell.
Optionally, the terminal cell common timing lead being sent in the cell, comprising:
The cell common timing lead is sent to the cell by the bearing mode of at least one of
Interior terminal: PBCH (Physical Broadcast Channel, Physical Broadcast Channel), physical downlink control channel PDCCH,
Physical Downlink Shared Channel PDSCH.
According to another embodiment of the invention, a kind of determining device of uplink timing advance is provided, comprising:
Module is obtained, the cell common timing lead for will acquire is sent to the terminal in cell, wherein described
Cell common timing lead is used to indicate the sending time of the terminal adjustment accidental access signal；
Receiving module, the accidental access signal after adjustment sending time for receiving the terminal transmission；
Indicating module, for obtaining the corresponding timing adjustment parameter of the terminal by the accidental access signal, and will
The timing adjustment parameter is sent to the terminal in the cell, wherein the timing adjustment parameter is used to indicate the terminal
Uplink timing advance is determined according to the timing adjustment parameter.
According to another embodiment of the invention, a kind of determination method of uplink timing advance is provided, comprising:
The hair of cell common timing lead adjustment accidental access signal based on cell where the terminal obtained from base station
Send the time；
Accidental access signal after sending from adjustment sending time to base station, wherein the accidental access signal is used to indicate
The base station obtains the corresponding timing adjustment parameter of the terminal based on the accidental access signal after adjustment sending time；
The timing adjustment parameter that the base station is sent is received, and uplink timing advance is determined according to the timing adjustment parameter
Amount.
It is optionally, described that uplink timing advance is determined according to the timing adjustment parameter, comprising:
The second Timing Advance: the timing adjustment parameter, the cell is obtained according at least one of following object
Common timing lead；
Using second Timing Advance as the uplink timing advance.
It is optionally, described that the accidental access signal after adjusting sending time is sent to base station, comprising:
The Timing Advance of the accidental access signal is sent using the cell common timing lead as the terminal；
The accidental access signal is sent according to the Timing Advance of the accidental access signal.
According to another embodiment of the invention, a kind of determining device of uplink timing advance is provided, comprising:
Module is adjusted, it is random for the cell common timing lead adjustment based on cell where the terminal obtained from base station
Access the sending time of signal；
Sending module, for the accidental access signal after sending adjustment sending time to base station, wherein the random access
Signal is used to indicate the base station and obtains the corresponding timing tune of the terminal based on the accidental access signal after adjustment sending time
Whole parameter；
Determining module, the timing adjustment parameter sent for receiving the base station, and it is true according to the timing adjustment parameter
Determine uplink timing advance.
According to another embodiment of the invention, a kind of storage medium is additionally provided, meter is stored in the storage medium
Calculation machine program, wherein the computer program is arranged to execute method described in any of the above-described when operation.
According to another embodiment of the invention, a kind of electronic device, including memory and processor are additionally provided, it is special
Sign is, computer program is stored in the memory, and the processor is arranged to run the computer program to hold
Method described in row any of the above-described.
Through the invention, the sending time of the accidental access signal as transmitted by terminal shifts to an earlier date according to cell common timing
Amount is adjusted；It can be further according to cell common timing after accidental access signal after receiving above-mentioned adjustment sending time
Lead determines the uplink timing advance of terminal；When by adopting the above technical scheme, by adjusting the transmission of accidental access signal
Between can avoid the design of long-term random access channel.Therefore, technical solution of the present invention can solve related skill
In art, traditional uplink timing advance determines that method need to be very long for the maximum distance of the user and base station design duration
Problem of the random access channel to cause cost of implementation excessive, to reach the cost of implementation that control uplink timing advance determines
Effect.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the uplink synchronous schematic diagram of OFDMA system in the related technology；
Fig. 2 is the flow chart (one) of the determination method of the uplink timing advance provided according to embodiments of the present invention；
Fig. 3 is satellite cell covering schematic diagram (one) provided according to embodiments of the present invention；
Fig. 4 is satellite cell covering schematic diagram (two) provided according to embodiments of the present invention；
Fig. 5 is the structural block diagram (one) of the determining device of the uplink timing advance provided according to embodiments of the present invention；
Fig. 6 is the flow chart (two) of the determination method of the uplink timing advance provided according to embodiments of the present invention；
Fig. 7 is the structural block diagram (two) of the determining device of the uplink timing advance provided according to embodiments of the present invention；
Fig. 8 is the operation schematic diagram of the determination method of the uplink timing advance provided according to embodiments of the present invention.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.
Embodiment 1
According to one embodiment of present invention, a kind of determination method of uplink timing advance is provided, Fig. 2 is according to this
The flow chart (one) of the determination method for the uplink timing advance that inventive embodiments provide, as shown in Fig. 2, this method comprises:
S100, the cell common timing lead that will acquire are sent to the terminal in cell, wherein cell common timing
Lead is used to indicate the sending time of terminal adjustment accidental access signal；
S102, the accidental access signal after receiving the adjustment sending time that terminal is sent；
S104 obtains the corresponding timing adjustment parameter of terminal by accidental access signal, and timing adjustment parameter is sent
To the terminal in cell, wherein timing adjustment parameter is used to indicate terminal and determines uplink timing advance according to timing adjustment parameter
Amount.
Through the invention, the sending time of the accidental access signal as transmitted by terminal shifts to an earlier date according to cell common timing
Amount is adjusted；It can be further according to cell common timing after accidental access signal after receiving above-mentioned adjustment sending time
Lead determines the uplink timing advance of terminal；When by adopting the above technical scheme, by adjusting the transmission of accidental access signal
Between can avoid the design of long-term random access channel.Therefore, technical solution of the present invention can solve related skill
In art, traditional uplink timing advance determines that method need to be very long for the maximum distance of the user and base station design duration
Problem of the random access channel to cause cost of implementation excessive, to reach the cost of implementation that control uplink timing advance determines
Effect.
Optionally, among S104, the corresponding timing adjustment parameter of terminal is obtained by accidental access signal, comprising:
The first Timing Advance of terminal is obtained according to accidental access signal；
Timing adjustment parameter: cell common timing lead is obtained according at least one of following object；First timing
Lead.
It should be further noted that the first Timing Advance be Traffic Channel in uplink timing advance in remove with
The part of uplink timing advance in machine channel；For the protection model of the CP of the asynchronous situation between terminal in Traffic Channel
It encloses to be less than in random access channel therefore above-mentioned first is passed through for the protection scope of the CP of the asynchronous situation between terminal
The introducing of Timing Advance may make that sync status of multiple terminals in Traffic Channel is further ensured.
Optionally, terminal timing adjustment parameter being sent in cell, comprising:
Terminal timing adjustment parameter being sent to by the bearing mode of at least one of in cell: physical down control
Channel PDCCH processed, Physical Downlink Shared Channel PDSCH.
It should be further noted that preferably being sent during timing adjustment parameter is sent to the terminal in cell
To all terminals in cell.
Optionally, among S100, the cell common timing lead that will acquire is sent to the terminal in cell, comprising:
The shortest path between base station distance cell is obtained, is shifted to an earlier date according to the cell common timing that shortest path obtains cell
Amount；
Cell common timing lead is sent to the terminal in cell.
It should be further noted that the above-mentioned acquisition for cell common timing lead can be completed to obtain by base station
It takes, can also complete to obtain by central network.For satellite cell, shortest path of the satellite base station between cell is
For the distance between satellite base station corresponding ground position and satellite base station；Fig. 3 is that the satellite that provides according to embodiments of the present invention is small
Area covers schematic diagram (one), as shown in figure 3, the distance between satellite base station 100 and ground corresponding position are the shortest distance
dnear, the distance between satellite base station 100 and satellite cell edge are longest distance dfar.The cell of above-mentioned satellite cell is public
Timing Advance can be obtained by following formula altogether:
Wherein, TAcell-specificFor cell common timing lead, c is the light velocity；Shifted to an earlier date according to above-mentioned cell common timing
The calculation of amount would know that, the physical significance of cell common timing lead are as follows: satellite base station is most short into satellite cell
A signal, which is completed, apart from corresponding position carrys out the time spent by transmission back.
Optionally, cell common timing lead is sent to the terminal in cell, comprising:
Terminal cell common timing lead being sent to by the bearing mode of at least one of in cell: physics
Broadcast channel PBCH, physical downlink control channel PDCCH, Physical Downlink Shared Channel PDSCH.
It should be further noted that during cell common timing lead is sent to the terminal in cell,
It is preferred that being sent to all terminals in cell.
Optionally, among S102, receive the accidental access signal that terminal is sent based on following object: terminal is according to cell public affairs
The sending time of the accidental access signal of Timing Advance adjustment altogether, comprising:
The Timing Advance of accidental access signal is sent using cell common timing lead as terminal；
Accidental access signal is sent according to the Timing Advance of accidental access signal.
Below by way of specific embodiment with the determination side of the uplink timing advance during the embodiment of the present invention will be further explained
Method:
Specific embodiment 1
According to an embodiment of the invention, providing a kind of determination method of uplink timing advance, Fig. 8 is according to the present invention
The operation schematic diagram of the determination method for the uplink timing advance that embodiment provides；As shown in figure 8, this method comprises:
S300, the cell common timing lead of cell where base station obtains terminal, and by cell common timing lead
All terminals being sent to by following bearing mode in cell: Physical Broadcast Channel PBCH, Physical Downlink Control Channel
PDCCH, Physical Downlink Shared Channel PDSCH；
S302 after terminal receives cell common timing lead, detects cell common timing lead, and according to cell
Common timing lead determines the sending time of accidental access signal, and is sent to accidental access signal according to the sending time
Base station；
S304 after base station receives accidental access signal, calculates the first Timing Advance, and root according to accidental access signal
Timing adjustment parameter is calculated according to the first Timing Advance, and timing adjustment parameter is sent to terminal；Wherein, timing adjustment parameter
It can be the first Timing Advance or the sum of the first Timing Advance and cell common timing lead；Timing adjustment parameter hair
It can be realized and be sent by following bearing mode when sending: down control channel PDCCH, DSCH Downlink Shared Channel PDSCH；
S306, terminal receive timing adjustment parameter, and timing adjustment parameter are detected to determine the second timing
Lead；When in timing adjustment parameter only include the first Timing Advance when, the second Timing Advance be timing adjustment parameter with
The sum of cell common timing lead, when timing adjustment parameter is the sum of the first Timing Advance and cell common timing lead
When, the second Timing Advance is timing adjustment parameter；After determining the second Timing Advance, terminal can be by the second timing advance
Measure the uplink timing advance being determined as in Traffic Channel.
Specific embodiment 2
The base station of each cell sends the cell common timing lead of the cell in the form of broadcast or multicast
TAcell-specific, TAcell-specificValue by base station in cell at a distance from cell determine；
All terminals in the cell coverage area, according to TA transmitted by the above-mentioned base station receivedcell-specificIt adjusts
The sending time of whole accidental access signal, terminal send according to the sending time of accidental access signal adjusted to base station random
Access signal；
Base station the timing advance TA of this terminal is calculated according to the terminal accidental access signal receivedue-specific；
Base station is to terminal transmission timing adjusting parameter μ, wherein μ=TAue-specific；
Terminal can be obtained uplink timing advance of the terminal in Traffic Channel, uplink timing advance after receiving μ
Measure TAue=TAcell-specific+μ；Herein, uplink timing advance is the adjustment amount of SS later data transmission time.
Specific embodiment 3
The base station of each cell sends the cell common timing lead of the cell in the form of broadcast or multicast
TAcell-specific, TAcell-specificValue by base station in cell at a distance from cell determine；
All terminals in the cell coverage area, according to TA transmitted by the above-mentioned base station receivedcell-specificIt adjusts
The sending time of whole accidental access signal, terminal send according to the sending time of accidental access signal adjusted to base station random
Access signal；
Base station the timing advance TA of this terminal is calculated according to the terminal accidental access signal receivedue-specific；
Base station is to terminal transmission timing adjusting parameter μ, wherein μ=TAcell-specific+TAue-specific；
Terminal can be obtained uplink timing advance of the terminal in Traffic Channel, uplink timing advance after receiving μ
Measure TAue=μ；Herein, uplink timing advance is the adjustment amount of SS later data transmission time.
The determination of the uplink timing advance in the embodiment of the present invention is illustrated by taking satellite cell as an example further below
Method:
Specific embodiment 4
Fig. 4 is satellite cell covering schematic diagram (two) provided according to embodiments of the present invention, as shown in figure 4, for satellite
Cell, the interior point nearest apart from satellite base station 100 of cell is d at a distance from satellite base station 100near, most apart from satellite base station 100
Remote point is d at a distance from satellite base station 100far；The distance between target terminal user 102 and satellite base station 100 are d, the light velocity
For c；The cell common timing lead TA of satellite cell can be calculated by following formulacell-specific:
Obtain cell common timing lead TAcell-specificAfterwards, by TAcell-specificPBCH is written, satellite base station will
TAcell-specificAll terminals 102 being sent in cell coverage area；
Terminal 102 demodulates PBCH, obtains TAcell-specific, terminal 102 is with TAcell-specificIt is Timing Advance to satellite
Base station 100 sends accidental access signal；
Satellite base station 100 detects the accidental access signal that terminal 102 is sent, and obtains the Timing Advance of terminal 102
TAue-specific；
Satellite base station 100 passes through PDSCH to above-mentioned terminal transmission timing adjusting parameter μ, wherein μ=TAue-specific；
After terminal 102 obtains timing adjustment parameter μ, uplink timing advance of the terminal 102 in Traffic Channel can be obtained
Amount, uplink timing advance TAue=TAcell-specific+μ。
Specific embodiment 5
As shown in figure 4, for satellite cell, in cell the point nearest apart from satellite base station 100 and satellite base station 100 away from
From for dnear, the point farthest apart from satellite base station 100 is d at a distance from satellite base station 100far；Target terminal user 102 with defend
The distance between star base station 100 is d, light velocity c；The cell common timing lead of satellite cell can be calculated by following formula
TAcell-specific:
Obtain cell common timing lead TAcell-specificAfterwards, by TAcell-specificPDCCH is written, satellite base station will
TAcell-specificAll terminals 102 being sent in cell coverage area；
Terminal 102 demodulates PDCCH, obtains TAcell-specific, terminal 102 is with TAcell-specificIt is Timing Advance to defending
Star base station 100 sends accidental access signal；
Satellite base station 100 detects the accidental access signal that terminal 102 is sent, and obtains the Timing Advance of terminal 102
TAue-specific；
Satellite base station 100 passes through PDCCH to above-mentioned terminal transmission timing adjusting parameter μ, wherein μ=TAcell-specific+
TAue-specific；
After terminal 102 obtains timing adjustment parameter μ, uplink timing advance of the terminal 102 in Traffic Channel can be obtained
Amount, uplink timing advance TAue=μ.
Embodiment 2
According to another embodiment of the invention, a kind of determining device of uplink timing advance is additionally provided, the device
For realizing above-described embodiment and preferred embodiment, the descriptions that have already been made will not be repeated.As used below, term
The combination of the software and/or hardware of predetermined function may be implemented in " module ".Although device is preferably described in following embodiment
It is realized with software, but the realization of the combination of hardware or software and hardware is also that may and be contemplated.Fig. 5 is basis
The structural block diagram (one) of the determining device of uplink timing advance provided in an embodiment of the present invention, as shown in figure 5, the device packet
It includes:
Module 200 is obtained, the cell common timing lead for will acquire is sent to the terminal in cell, wherein
Cell common timing lead is used to indicate the sending time of terminal adjustment accidental access signal；
Receiving module 202, the accidental access signal after adjustment sending time for receiving terminal transmission；
Indicating module 204 for obtaining the corresponding timing adjustment parameter of terminal by accidental access signal, and timing is adjusted
Whole parameter is sent to the terminal in cell, wherein timing adjustment parameter is used to indicate terminal and is determined according to timing adjustment parameter
Row Timing Advance.Device in through the embodiment of the present invention, the accidental access signal as transmitted by terminal in receiving module
Sending time according to obtain module in cell common timing lead adjusted；Therefore indicating module can be above-mentioned in reception
The uplink of terminal can be further determined after accidental access signal after adjustment sending time according to cell common timing lead
Timing Advance；By adopting the above technical scheme, longer by adjusting the sending time of the accidental access signal avoidable duration
Random access channel design.Therefore, technical solution of the present invention can solve in the related technology, and traditional uplink timing mentions
Preceding amount determines that method need to be for the maximum distance design duration of user and base station very long random access channel to cause
The excessive problem of cost of implementation, to achieve the effect that control the determining cost of implementation of uplink timing advance.
Optionally, indicating module 204 further include:
For obtaining the first Timing Advance of terminal according to accidental access signal；And according in following object at least it
One obtains timing adjustment parameter: cell common timing lead；First Timing Advance.
It should be noted that above-mentioned modules can be realized by software or hardware, for the latter, Ke Yitong
Following manner realization is crossed, but not limited to this: above-mentioned module is respectively positioned in same processor；Alternatively, above-mentioned modules are with any
Combined form is located in different processors.
Embodiment 3
According to another embodiment of the invention, a kind of determination method of uplink timing advance is additionally provided, Fig. 6 is root
According to the flow chart (two) of the determination method of the uplink timing advance of the embodiment of the present invention, as shown in fig. 6, this method comprises:
Method in through the embodiment of the present invention, the sending time of the accidental access signal as transmitted by terminal is according to small
Area's common timing lead is adjusted；It can further root after accidental access signal after receiving above-mentioned adjustment sending time
The uplink timing advance in terminal is determined according to cell common timing lead；By adopting the above technical scheme, by adjusting random
The sending time of access signal can avoid the design of long-term random access channel.Therefore, technical side of the invention
Case can solve in the related technology, and traditional uplink timing advance determines that method need to be set for the maximum distance of user and base station
Problem of the meter duration very long random access channel to cause cost of implementation excessive, to reach control uplink timing advance
Measure the effect of determining cost of implementation.
S200, the cell common timing lead based on cell where the terminal obtained from base station adjust accidental access signal
Sending time；
S202, the accidental access signal after sending adjustment sending time to base station, wherein accidental access signal is used to indicate
Base station obtains the corresponding timing adjustment parameter of terminal based on the accidental access signal after adjustment sending time；
S204 receives the timing adjustment parameter that base station is sent, and determines uplink timing advance according to timing adjustment parameter.
Optionally, among S204, uplink timing advance is determined according to timing adjustment parameter, comprising:
The second Timing Advance: timing adjustment parameter, cell common timing is obtained according at least one of following object
Lead；
Using the second Timing Advance as uplink timing advance.
Optionally, the accidental access signal after sending adjustment sending time to base station, comprising:
The Timing Advance of accidental access signal is sent using cell common timing lead as terminal；
Accidental access signal is sent according to the Timing Advance of accidental access signal.
It should be further noted that the acquisition of the second peculiar Timing Advance of above-mentioned terminal both can will be small by base station
Area's common timing lead directly obtains the second peculiar Timing Advance after being added with timing adjustment parameter, and peculiar by second
Timing Advance is sent to terminal, will timing by terminal after timing adjustment parameter individually can also being sent to terminal by base station
It is added between adjusting parameter and cell common timing lead to obtain the second peculiar Timing Advance.
Embodiment 4
According to another embodiment of the invention, a kind of determining device of uplink timing advance is additionally provided, the device
For realizing above-described embodiment and preferred embodiment, the descriptions that have already been made will not be repeated.As used below, term
The combination of the software and/or hardware of predetermined function may be implemented in " module ".Although device is preferably described in following embodiment
It is realized with software, but the realization of the combination of hardware or software and hardware is also that may and be contemplated.Fig. 7 is basis
The determining device (two) of uplink timing advance provided in an embodiment of the present invention, as shown in fig. 7, the device includes:
Module 300 is adjusted, for the cell common timing lead adjustment based on cell where the terminal obtained from base station
The sending time of accidental access signal；
Sending module 302, for the accidental access signal after sending adjustment sending time to base station, wherein random access
Signal is used to indicate base station and obtains the corresponding timing adjustment parameter of terminal based on the accidental access signal after adjustment sending time；
Determining module 304 for receiving the timing adjustment parameter of base station transmission, and determines uplink according to timing adjustment parameter
Timing Advance.
Device in through the embodiment of the present invention, the sending time of the accidental access signal as transmitted by terminal is according to small
Area's common timing lead is adjusted；It can further root after accidental access signal after receiving above-mentioned adjustment sending time
The uplink timing advance in terminal is determined according to cell common timing lead；By adopting the above technical scheme, by adjusting random
The sending time of access signal can avoid the design of long-term random access channel.Therefore, technical side of the invention
Case can solve in the related technology, and traditional uplink timing advance determines that method need to be set for the maximum distance of user and base station
Problem of the meter duration very long random access channel to cause cost of implementation excessive, to reach control uplink timing advance
Measure the effect of determining cost of implementation.
It should be noted that above-mentioned modules can be realized by software or hardware, for the latter, Ke Yitong
Following manner realization is crossed, but not limited to this: above-mentioned module is respectively positioned in same processor；Alternatively, above-mentioned modules are with any
Combined form is located in different processors.
Embodiment 5
According to another embodiment of the invention, a kind of storage medium is additionally provided, is stored with computer in storage medium
Program, wherein computer program is arranged to execute the method in any of the above-described when operation.
Optionally, in the present embodiment, above-mentioned storage medium can be set to store by executing based on following steps
Calculation machine program:
S1, the cell common timing lead that will acquire are sent to the terminal in cell, wherein cell common timing mentions
Preceding amount is used to indicate the sending time of terminal adjustment accidental access signal；
S2, the accidental access signal after receiving the adjustment sending time that terminal is sent；
S3 obtains the corresponding timing adjustment parameter of terminal by accidental access signal, and timing adjustment parameter is sent to
Terminal in cell, wherein timing adjustment parameter is used to indicate terminal and determines uplink timing advance according to timing adjustment parameter.
Optionally, in the present embodiment, above-mentioned storage medium can include but is not limited to: USB flash disk, read-only memory (Read-
Only Memory, referred to as ROM), it is random access memory (Random Access Memory, referred to as RAM), mobile hard
The various media that can store computer program such as disk, magnetic or disk.
Embodiment 6
According to another embodiment of the invention, a kind of electronic device, including memory and processor are additionally provided, it is special
Sign is, computer program is stored in memory, and processor is arranged to run computer program to execute any of the above-described
In method.
Optionally, above-mentioned electronic device can also include transmission device and input-output equipment, wherein the transmission device
It is connected with above-mentioned processor, which connects with above-mentioned processor.
Optionally, in the present embodiment, above-mentioned processor can be set to execute following steps by computer program:
S1, the cell common timing lead that will acquire are sent to the terminal in cell, wherein cell common timing mentions
Preceding amount is used to indicate the sending time of terminal adjustment accidental access signal；
S2, the accidental access signal after receiving the adjustment sending time that terminal is sent；
S3 obtains the corresponding timing adjustment parameter of terminal by accidental access signal, and timing adjustment parameter is sent to
Terminal in cell, wherein timing adjustment parameter is used to indicate terminal and determines uplink timing advance according to timing adjustment parameter.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein
Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or
Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.It is all within principle of the invention, it is made it is any modification, equally replace
It changes, improve, should all be included in the protection scope of the present invention.
Claims (12)
1. a kind of determination method of uplink timing advance characterized by comprising
The cell common timing lead that will acquire is sent to the terminal in cell, wherein the cell common timing shifts to an earlier date
Amount is used to indicate the sending time of the terminal adjustment accidental access signal；
Accidental access signal after receiving the adjustment sending time that the terminal is sent；
The corresponding timing adjustment parameter of the terminal is obtained by the accidental access signal, and the timing adjustment parameter is sent out
Give the terminal in the cell, wherein the timing adjustment parameter is used to indicate the terminal and joins according to the timing adjustment
Number determines uplink timing advance.
2. the method according to claim 1, wherein described obtain the terminal by the accidental access signal
Corresponding timing adjustment parameter, comprising:
The first Timing Advance of the terminal is obtained according to the accidental access signal；
The timing adjustment parameter is obtained according at least one of following object: the cell common timing lead, described
First Timing Advance.
3. the method according to claim 1, wherein described be sent to the cell for the timing adjustment parameter
Interior terminal, comprising:
The terminal timing adjustment parameter being sent to by the bearing mode of at least one of in the cell: under physics
Row control channel PDCCH, Physical Downlink Shared Channel PDSCH.
4. the method according to claim 1, wherein the cell common timing lead that will acquire is sent
Terminal in cell, comprising:
The shortest path between cell described in base station distance is obtained, the cell for obtaining the cell according to the shortest path is public
Timing Advance；
The terminal cell common timing lead being sent in the cell.
5. according to the method described in claim 4, it is characterized in that, described be sent to institute for the cell common timing lead
State the terminal in cell, comprising:
The terminal cell common timing lead being sent to by the bearing mode of at least one of in the cell:
Physical Broadcast Channel PBCH, physical downlink control channel PDCCH, Physical Downlink Shared Channel PDSCH.
6. a kind of determining device of uplink timing advance characterized by comprising
Module is obtained, the cell common timing lead for will acquire is sent to the terminal in cell, wherein the cell
Common timing lead is used to indicate the sending time of the terminal adjustment accidental access signal；
Receiving module, the accidental access signal after adjustment sending time for receiving the terminal transmission；
Indicating module, for obtaining the corresponding timing adjustment parameter of the terminal by the accidental access signal, and will be described
Timing adjustment parameter is sent to the terminal in the cell, wherein the timing adjustment parameter be used to indicate the terminal according to
The timing adjustment parameter determines uplink timing advance.
7. a kind of determination method of uplink timing advance characterized by comprising
When the transmission of the cell common timing lead adjustment accidental access signal based on cell where the terminal obtained from base station
Between；
Accidental access signal after sending from adjustment sending time to base station, wherein the accidental access signal is used to indicate described
Base station obtains the corresponding timing adjustment parameter of the terminal based on the accidental access signal after adjustment sending time；
The timing adjustment parameter that the base station is sent is received, and uplink timing advance is determined according to the timing adjustment parameter.
8. the method according to the description of claim 7 is characterized in that described determine uplink timing according to the timing adjustment parameter
Lead, comprising:
Obtain the second Timing Advance according at least one of following object: the timing adjustment parameter, the cell are public
Timing Advance；
Using second Timing Advance as the uplink timing advance.
9. the method according to the description of claim 7 is characterized in that described send connecing after adjusting sending time at random to base station
Enter signal, comprising:
The Timing Advance of the accidental access signal is sent using the cell common timing lead as the terminal；
The accidental access signal is sent according to the Timing Advance of the accidental access signal.
10. a kind of determining device of uplink timing advance characterized by comprising
Module is adjusted, adjusts random access for the cell common timing lead based on cell where the terminal obtained from base station
The sending time of signal；
Sending module, for the accidental access signal after sending adjustment sending time to base station, wherein the accidental access signal
It is used to indicate the base station and the corresponding timing adjustment ginseng of the terminal is obtained based on the accidental access signal after adjustment sending time
Number；
Determining module, the timing adjustment parameter sent for receiving the base station, and determined according to the timing adjustment parameter
Row Timing Advance.
11. a kind of storage medium, which is characterized in that be stored with computer program in the storage medium, wherein the computer
Program is arranged to execute method described in any one of the claim 1 to 5 or claim 7 to 9 when operation.
12. a kind of electronic device, including memory and processor, which is characterized in that be stored with computer journey in the memory
Sequence, the processor are arranged to run the computer program to execute the claim 1 to 5 or claim 7 to 9
Any one of described in method.
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| CN201810055173.1A CN110062455B (en) | 2018-01-19 | 2018-01-19 | Method and device for determining uplink timing advance, storage medium and electronic device |
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| CN201810055173.1A CN110062455B (en) | 2018-01-19 | 2018-01-19 | Method and device for determining uplink timing advance, storage medium and electronic device |
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| WO2021121208A1 (en) * | 2019-12-16 | 2021-06-24 | 中兴通讯股份有限公司 | Method and apparatus for determining timing advance, and device and medium |
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| CN115245015A (en) * | 2021-02-23 | 2022-10-25 | 北京小米移动软件有限公司 | Uplink signal transmission method, device, equipment and storage medium |
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| CN112399546A (en) * | 2019-08-12 | 2021-02-23 | 华为技术有限公司 | Indication method, device, equipment and storage medium of public timing advance |
| WO2021056383A1 (en) * | 2019-09-27 | 2021-04-01 | Oppo广东移动通信有限公司 | Wireless communication method, terminal device and network device |
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| EP4175396A4 (en) * | 2020-06-30 | 2023-12-13 | Datang Mobile Communications Equipment Co., Ltd. | Random access method and device |
| WO2022078472A1 (en) * | 2020-10-14 | 2022-04-21 | Essen Innovation Company Limited | Method of propagation delay compensation and related devices |
| CN114828197B (en) * | 2021-01-19 | 2023-10-13 | 维沃移动通信有限公司 | Time information sending method, terminal and network side equipment |
| CN114828197A (en) * | 2021-01-19 | 2022-07-29 | 维沃移动通信有限公司 | Time information sending method, terminal and network side equipment |
| CN115245015A (en) * | 2021-02-23 | 2022-10-25 | 北京小米移动软件有限公司 | Uplink signal transmission method, device, equipment and storage medium |
| CN115245015B (en) * | 2021-02-23 | 2024-01-16 | 北京小米移动软件有限公司 | Uplink signal sending method, device, equipment and storage medium |
| CN113115431B (en) * | 2021-04-01 | 2022-10-18 | 之江实验室 | Non-terrestrial network time parameter configuration method |
| CN113115431A (en) * | 2021-04-01 | 2021-07-13 | 之江实验室 | Non-terrestrial network time parameter configuration method |
| WO2023024836A1 (en) * | 2021-08-25 | 2023-03-02 | RealMe重庆移动通信有限公司 | Uplink synchronization method, terminal, and storage medium |
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