CN107896387A - A kind of method and user equipment of synchronisation source adjustment - Google Patents
A kind of method and user equipment of synchronisation source adjustment Download PDFInfo
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- CN107896387A CN107896387A CN201610865615.XA CN201610865615A CN107896387A CN 107896387 A CN107896387 A CN 107896387A CN 201610865615 A CN201610865615 A CN 201610865615A CN 107896387 A CN107896387 A CN 107896387A
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- China
- Prior art keywords
- user equipment
- synchronisation source
- source
- synchronizing signal
- setting
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
- H04W56/0015—Synchronization between nodes one node acting as a reference for the others
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a kind of method of synchronisation source adjustment, this method includes：First user equipment sends synchronizing information to second user equipment；When including the Synchronization Source of the 3rd user equipment in the synchronizing information, make using first user equipment as new synchronisation source of the second user equipment of synchronisation source by the 3rd user equipment as the second user equipment.The invention also discloses a kind of user equipment.
Description
Technical field
The present invention relates to wireless communication technology, more particularly to the method and user equipment of a kind of adjustment of synchronisation source.
Background technology
D2D communications refer to forwarding of the business datum without base station and core net, directly by user equipment (UE, User
Equipment the communication mode for closing on user equipment) is given by air interface transmission.
In D2D communication systems, being properly received of wireless signal requires transmitting terminal and receiving terminal perform the strict time and
Frequency Synchronization, therefore UE has to obtain synchronisation source, is possible to be correctly received and demodulates D2D signals.
For the UE in cellular network covering, typically determined by the down-going synchronous timing of beehive network system or uplink synchronous
When come realize synchronization timing align；For the UE outside cellular network covering, before starting to send synchronizing signal, UE search D2D
Synchronisation source, if searching D2D synchronisation sources, its receiver can be synchronized to the D2D synchronisation sources by UE, then retransmit synchronization
Signal；Otherwise, UE can be used as synchronisation source to send synchronizing signal.
When selecting synchronisation source, UE searches for periphery adjacent to the UE synchronizing signals broadcasted and MIB-SL (Master first
Information Block-SideLink, host system message block-D2D communicate) signal, and the synchronisation source to searching is according to association
View is selected.Wherein, MIB-SL signals can carry following information：Indicate synchronisation source whether in the cellular network area of coverage, D2D
The radio sub-frame number of radio frame number and place where the bandwidth used, sub-frame configuration type, the synchronizing signal of communicating.
In above-mentioned agreement, the synchronisation source that finger is shown in network coverage area in MIB-SL signals is limit priority,
Synchronisation source of the use range in 0 to 167 synchronizing signal ID is time high priority, using synchronizing signal ID scopes 168 to 334
Synchronisation source be lowest priority.If UE is currently without synchronisation source, the synchronisation source of prioritizing selection high priority, in the time of same priority
Select in synchronisation source and then select suitable synchronisation source using synchronisation source strobe utility.
Although it has been specified that the primitive rule of synchronisation source selection, there are still many at present to need in D2D communications
Solve the problems, such as.Such as in the non-cellular network area of coverage, when two synchronisation sources with it is mobile and closer to each other when, one of them is same
Step source may need to be closed, and may being needed from UE of the lower extension of pent synchronisation source reselects synchronisation source, and this can increase
UE power consumptions；And when closing some synchronisation source may ongoing data transfer between interruption U E, influence Consumer's Experience.
The content of the invention
In order to solve the above technical problems, the embodiment of the present invention provides a kind of method and user equipment of synchronisation source adjustment, with
Power consumption is reduced when synchronizing source adjustment and optimizes Consumer's Experience.
What the technical scheme of the embodiment of the present invention was realized in：
A kind of method of synchronisation source adjustment provided in an embodiment of the present invention, including：First user equipment is set to second user
Preparation send synchronizing information；When including the Synchronization Source of the 3rd user equipment in the synchronizing information, make with described first
User equipment is new synchronization of the second user equipment of synchronisation source using the 3rd user equipment as the second user equipment
Source.
In such scheme, methods described also includes：First user equipment determines the synchronization of the 3rd user equipment
Signal strength values are not less than the first threshold set and maintain the first duration of setting, and being sent to the second user equipment includes
There is the synchronizing information of the Synchronization Source of the 3rd user equipment.
In such scheme, methods described also includes：First user equipment is determined between the second user equipment
During without business data transmission, judge whether the synchronizing signal intensity level of the 3rd user equipment is less than the first threshold and ties up
Hold the second duration of setting；The synchronizing signal intensity level of the 3rd user equipment is less than institute in the second duration of the setting
When stating first threshold, the 3rd user equipment is set not to be re-used as the synchronisation source of first user equipment；In the setting
When the synchronizing signal intensity level of the 3rd user equipment is not less than the first threshold in second duration, first user sets
It is standby to stop sending synchronizing signal.
In such scheme, the Synchronization Source includes the synchronizing signal ID of synchronisation source and the user equipment ID of synchronisation source.
In such scheme, methods described also includes：When first user equipment determines itself without synchronisation source, transmission it is same
Step information includes the invalid synchronizing signal ID and the user equipment ID of itself of setting.
The method that the embodiment of the present invention provides another synchronisation source adjustment, including：Second user equipment is received described in conduct
The synchronizing information that first user equipment of the synchronisation source of second user equipment is sent；Include the 3rd use in the synchronizing information
During the Synchronization Source of family equipment, the second user equipment is using the 3rd user equipment as the second user equipment
New synchronisation source.
In such scheme, the Synchronization Source includes the synchronizing signal ID of synchronisation source and the user equipment ID of synchronisation source.
In such scheme, methods described also includes：The second user equipment determines the synchronization of the 3rd user equipment
Signal strength values are not less than the first threshold set and maintain the first duration of setting, using the 3rd user equipment as described in
The new synchronisation source of second user equipment.
The embodiment of the present invention provides a kind of user equipment, including：Transmitting element, it is synchronous for being sent to second user equipment
Information；When including the Synchronization Source of the 3rd user equipment in the synchronizing information, make using the user equipment to be synchronous
New synchronisation source of the second user equipment in source using the 3rd user equipment as the second user equipment.
In such scheme, the user equipment also includes：First determining unit, for determining the 3rd user equipment
Synchronizing signal intensity level not less than setting first threshold and maintain the first duration of setting, trigger the transmitting element to described
Second user equipment sends the synchronizing information for the Synchronization Source for including the 3rd user equipment.
In such scheme, the user equipment also includes：Processing unit is judged, for determining and the second user equipment
Between without business data transmission when, judge whether the synchronizing signal intensity level of the 3rd user equipment is less than the first threshold
And maintain the second duration of setting；The synchronizing signal intensity level of the 3rd user equipment is low in the second duration of the setting
When the first threshold, the 3rd user equipment is set not to be re-used as the synchronisation source of the user equipment；In the setting
When the synchronizing signal intensity level of the 3rd user equipment is not less than the first threshold in second duration, the user equipment stops
Only send synchronizing signal.
In such scheme, the Synchronization Source includes the synchronizing signal ID of synchronisation source and the user equipment ID of synchronisation source.
In such scheme, the user equipment also includes：Second determining unit, for determining that the user equipment is not same
Step source, and when without synchronisation source, the synchronizing information transmitted by the transmitting element includes the invalid synchronizing signal ID of setting
With the user equipment ID of itself.
The embodiment of the present invention provides another user equipment, and the user equipment includes：Receiving unit, for receiving conduct
The synchronizing information that first user equipment of the synchronisation source of the user equipment is sent；Adjustment unit, in the synchronizing information
In when including the Synchronization Source of the 3rd user equipment, the new synchronization using the 3rd user equipment as the user equipment
Source.
In such scheme, the Synchronization Source includes the synchronizing signal ID of synchronisation source and the user equipment ID of synchronisation source.
In such scheme, the adjustment unit is additionally operable to：Determine the synchronizing signal intensity level of the 3rd user equipment not
Less than setting first threshold and maintain setting the first duration, using the 3rd user equipment as the new of the user equipment
Synchronisation source.
In the method and user equipment of synchronisation source provided by the present invention adjustment, the first user equipment is to second user equipment
Send synchronizing information；When including the Synchronization Source of the 3rd user equipment in synchronizing information, make using the first user equipment as
New synchronisation source of the second user equipment of synchronisation source using the 3rd user equipment as second user equipment.Using this method, simplify
Search procedure of the user equipment when adjusting synchronisation source, reduces power consumption of the user equipment when adjusting synchronisation source；And keep away
Exempt to interrupt ongoing business data transmission during synchronisation source is adjusted, improved Consumer's Experience.
Brief description of the drawings
Fig. 1 is the method flow diagram of the synchronisation source adjustment in the embodiment of the present invention one；
Fig. 2 is the method flow diagram of the synchronisation source adjustment in the embodiment of the present invention two；
Fig. 3 is the flow chart of the synchronisation source selection course in the embodiment of the present invention three；
Fig. 4 is the structural representation of the user equipment in the embodiment of the present invention four；
Fig. 5 is the structural representation of the user equipment in the embodiment of the present invention five.
Embodiment
In order to more fully hereinafter understand the features of the present invention and technology contents, below in conjunction with the accompanying drawings to the reality of the present invention
Now it is described in detail, appended accompanying drawing purposes of discussion only for reference, is not used for limiting the present invention.
Fig. 1 is the method flow diagram of synchronisation source of embodiment of the present invention adjustment.It is as shown in figure 1, provided in an embodiment of the present invention
The method of synchronisation source adjustment comprises the following steps：
Step 101, the first user equipment sends synchronizing information to second user equipment；Include the 3rd in synchronizing information
During the Synchronization Source of user equipment, the second user equipment using the first user equipment as synchronisation source is set to make the 3rd user equipment
For the new synchronisation source of second user equipment.
When first user equipment determines itself without synchronisation source, the synchronizing information of transmission includes the invalid synchronous letter of setting
Number ID and the user equipment ID, the synchronizing signal ID of itself are specifically as follows D2D synchronizing signal ID, below using D2D communications as
Example, the embodiment of the present invention is described in detail.
In embodiments of the present invention, the invalid synchronizing signal ID set is 0x1FF, when what is sent by the first user equipment
After invalid synchronizing signal ID is received and decoded, the first user equipment can be judged by receiving the second user equipment of the data
Synchronisation source without recommendation.This method is applied during second user equipment is searched for and adjusts synchronisation source, can save the time and
Power consumption.
Synchronization Source includes the synchronizing signal ID of synchronisation source and the user equipment ID of synchronisation source.
First user equipment sends synchronizing information to second user equipment；Include the 3rd user equipment in synchronizing information
Synchronization Source when, make using the first user equipment be synchronisation source second user equipment be based on Synchronization Source search the 3rd use
Family equipment, and the new synchronisation source using the 3rd user equipment as second user equipment.
After including the synchronizing information of Synchronization Source of the 3rd user equipment and being received, the of the synchronizing information is received
Two user equipmenies can determine that the 3rd user equipment is the object synchronization source that its synchronisation source is recommended, and then according to Synchronization Source
In synchronous source device user equipment ID search for the 3rd user equipment.
In embodiments of the present invention, the first user equipment determines the synchronizing signal intensity level of the 3rd user equipment not less than setting
Fixed first threshold and the first duration for maintaining setting, the synchronisation source for including the 3rd user equipment is sent to second user equipment
The synchronizing information of mark.
The synchronizing signal quality of only the 3rd user equipment is higher just to can guarantee that second user equipment is set with the 3rd user
D2D signals are properly received and demodulate after standby synchronization and do not influence Consumer's Experience.
First user equipment is choosing the 3rd user equipment as the synchronisation source of itself and will include the 3rd user equipment
Synchronization Source synchronizing information broadcast after, using delay monitoring link come monitor whether setting the second duration in the 3rd use
The synchronizing signal quality of family equipment, and do not retransmited when the synchronizing signal intensity level of the 3rd user equipment is not less than first threshold
Synchronizing information, concretely comprise the following steps：
When first user equipment is determined between second user equipment without business data transmission, the 3rd user equipment is judged
Whether synchronizing signal intensity level is less than first threshold and maintains the second duration of setting；
When the synchronizing signal intensity level of the 3rd user equipment is less than first threshold in the second duration of setting, make the 3rd use
Family equipment is not re-used as the synchronisation source of the first user equipment；
When the synchronizing signal intensity level of the 3rd user equipment is not less than first threshold in the second duration of setting, first uses
Family equipment stops sending synchronizing signal.
In embodiments of the present invention, can be using setting time-delay closing timer to complete above-mentioned function.Specific steps
For：In the first user equipment searches to the 3rd user equipment and after being adjusted to synchronous with the 3rd user equipment, and the first user sets
It is standby with second user equipment without business data transmission when, start-up study Off Timer, synchronisation source is monitored in certain period of time
Synchronizing signal, and synchronizing signal intensity level less than setting first threshold when stop time-delay closing timer, the first user
Equipment continues periodically to search for neighbouring synchronisation source；If the synchronizing signal intensity level of synchronisation source is not less than setting in this time
First threshold, and the first user equipment does not have business data transmission, then continues waiting for after time-delay closing timer expiry, the
One user equipment stops sending synchronizing information.
The method of synchronisation source adjustment provided in an embodiment of the present invention includes：First user equipment sends synchronizing information；Same
When including the Synchronization Source of the 3rd user equipment in step information, set the second user using the first user equipment as synchronisation source
It is standby that 3rd user equipment, and the new synchronisation source using the 3rd user equipment as second user equipment are searched for based on Synchronization Source.
Using this method, search procedure of the user equipment when adjusting synchronisation source is simplified, reduces user equipment in adjustment synchronisation source
When power consumption；And avoid and interrupt ongoing business data transmission during synchronisation source is adjusted, improve user
Experience.
Embodiment two
The method of synchronisation source provided in an embodiment of the present invention adjustment as shown in Figure 2 comprises the following steps：
Step 201, second user equipment receives the first user equipment transmission of the synchronisation source as second user equipment
Synchronizing information.
The purpose of the step is to read object synchronization source, and by the step, second user equipment obtains the first user equipment
Synchronisation source information.
Step 202, when including the Synchronization Source of the 3rd user equipment in synchronizing information, second user equipment is by
New synchronisation source of three user equipmenies as second user equipment.
Synchronization Source includes the synchronizing signal ID of synchronisation source and the user equipment ID of synchronisation source.
Second user equipment determines first threshold and dimension of the synchronizing signal intensity level not less than setting of the 3rd user equipment
The first duration of setting is held, the new synchronisation source using the 3rd user equipment as second user equipment.
Second user equipment is uninterrupted to receive the first user equipment information using the first user equipment as synchronisation source, is receiving
To the first user equipment information include the 3rd user equipment Synchronization Source when, search for the 3rd user equipment and meet it is above-mentioned
3rd user equipment is adjusted to the synchronisation source of second user equipment during condition, completes the work of synchronisation source adjustment.
In the method for synchronisation source adjustment provided in an embodiment of the present invention, second user equipment receives and is used as second user equipment
Synchronisation source the first user equipment send synchronizing information and decoding；Include the same of the 3rd user equipment in synchronizing information
When step source identifies, second user equipment is based on Synchronization Source and searches for the 3rd user equipment, and regard the 3rd user equipment as the
The new synchronisation source of two user equipmenies.Using this method, search procedure of the user equipment when adjusting synchronisation source is simplified, is reduced
Power consumption of the user equipment when adjusting synchronisation source；And avoid and interrupt ongoing business during synchronisation source is adjusted
Data transfer, improve Consumer's Experience.
Embodiment three
As shown in figure 3, the embodiment of the present invention details the synchronisation source selection flow of user equipment.
The flow comprises the following steps：
Step 301：Whether there is the judgement of neighbouring synchronisation source.
Step 302：There is no the non-network area of coverage of the random selection of the user equipment in the non-network area of coverage of synchronisation source same
Step signal ID generations synchronizing signal is transmitted, and the setting position of the reserved fields in the MIB-SL signals of transmission point
The user equipment ID of invalid synchronizing signal ID values 0x1FF and user equipment itself is not filled.
Step 303：User equipment is periodically searched for and the neighbouring synchronisation source of measurement.
Step 304：Judge whether synchronisation source signal strength values are more than first threshold in the first duration.
Step 305：Judge whether to meet that synchronizing signal ID is invalid value.
Step 306：The synchronisation source that user equipment searches current sync source is recommended.
Step 307：Elect the synchronisation source searched as synchronisation source, send synchronizing signal, and the MIB-SL of synchronizing signal
The middle synchronizing signal ID and the synchronisation source for filling synchronisation source user equipment ID.
Step 308：Judge whether user equipment has business data transmission.
Step 309：Start-up study Off Timer.
Step 310：Judge whether time-delay closing timer is overtime.
Step 311：Dwelling period sends synchronizing signal.
Step 312：Judge whether synchronisation source signal strength values are more than the first threshold of setting.
Step 313：Stop time-delay closing timer, invalid synchronizing signal is filled in the MIB-SL of the synchronizing information of transmission
The ID and user equipment ID of itself.
When application layer software initiates D2D communication requests, step 301 is first carried out, whether there is the judgement of synchronisation source, it
Afterwards in step 302, two user equipment (UE)s 1 and UE2 in the non-network area of coverage of no synchronisation source will randomly choose non-
Network coverage area synchronizing signal ID generations synchronizing signal is transmitted, and the reserved fields in the MIB-SL signals of transmission
Setting position fill the user equipment ID of invalid synchronizing signal ID values 0x1FF and user equipment itself, synchronizing signal respectively
And MIB-SL signals repeat to send using 40ms as the cycle.Wherein, user equipment ID is the intrinsic numbering of user equipment.
In step 303 after step 302, the UE1 of no synchronisation source continues periodically to search for and measure neighbouring
Synchronisation source.
After step 303, step 301 is performed again, to UE1 whether there is the judgement of synchronisation source, at this moment UE1 finds use
The synchronizing signal of family equipment UE 2 and MIB-SL signals are correctly decoded, by step 304 and 305 judgement, met in certain time length
It is interior, UE2 synchronizing signal intensity level be more than the first threshold set, UE2 MIB-SL signals in synchronizing signal value 0x1FF as
Invalid value, then step 307 is performed, UE2 is elected as to UE1 synchronisation source, and change the content of the MIB-SL signals of UE1 transmissions, its
In synchronizing signal ID and user equipment ID be respectively changed to UE2 synchronizing signal ID and UE2 user equipment ID.
After step 307, step 308 is performed, judges user equipment whether there is business data transmission, and without business datum
During transmission, start-up study Off Timer.
Judge whether time-delay closing timer exceedes the second duration of setting by step 310, in time-delay closing timer
During having not timed out, perform step 312 and whether periodically monitor UE2 synchronisation source signal strength values more than the first threshold set.
When first threshold of the synchronizing signal intensity level for UE2 occur no more than setting, then step 313 is performed, stop time-delay closing and determine
When device, and invalid synchronizing signal ID and UE1 user equipment ID is filled in the MIB-SL signals that UE1 is sent.
After time-delay closing timer expiry, step 311 is performed, UE1 stops sending synchronizing signal and MIB-SL signals.
After step 311, step 303 is performed, UE1 continues periodically search and the neighbouring synchronisation source of measurement.
After a period of time, with itself or UE3 movement, UE2 searches neighbouring UE3 synchronizing signal and correctly solved
Code MIB-SL signals.Through monitoring, in certain time length afterwards, UE3 synchronizing signals intensity level is more than the first threshold of setting simultaneously
And during the transmission of UE2 no datas, then step 308 being performed, UE1 sends synchronizing signal using UE3 as the synchronisation source of oneself, and it is sent out
Synchronizing signal ID and user equipment ID is accordingly revised as UE3 synchronizing signal ID and UE3 use respectively in the MIB-SL signals sent
Family device id.Now for UE3 without synchronisation source, UE3 is UE2 synchronisation source, and UE2 is UE1 synchronisation source.
For UE1, object synchronization signal ID and user in the UE2 reserved fields of MIB-SL signals are decoded to
When device id is UE3 synchronizing signal ID and user equipment ID values, then step 306 is performed, carries out searching to user equipment (UE) 3
Rope and measurement.If the UE3 searched synchronizing signal intensity level is more than first threshold, UE3 without synchronisation source, and UE1 is without business
Data transfer, then perform step 307 and UE3 is adjusted to synchronisation source.
If during synchronisation source is adjusted, UE3 synchronizing signal intensity level has business no more than first threshold, UE1
Data transfer, then step 303 is performed, UE1 periodically performs neighbouring synchronisation source and searches for and measure, according in the embodiment of the present invention
Method selects synchronisation source again.
The method of synchronisation source adjustment in the embodiment of the present invention, simplifies search of the user equipment when adjusting synchronisation source
Journey, reduce power consumption of the user equipment when adjusting synchronisation source；And avoid and interrupted during synchronisation source is adjusted
The business data transmission of progress, improves Consumer's Experience.
Example IV
Fig. 4 is the structural representation of the user equipment in the embodiment of the present invention.As shown in figure 4, the embodiment of the present invention provides
User equipment include：
Transmitting element 403, for sending synchronizing information to second user equipment；And include the 3rd use in synchronizing information
During the Synchronization Source of family equipment, the second user equipment using the user equipment as synchronisation source is set to regard the 3rd user equipment as
The new synchronisation source of two user equipmenies.
Wherein, Synchronization Source includes the synchronizing signal ID of synchronisation source and the user equipment ID of synchronisation source.
User equipment also includes the second determining unit 402, for determining that the user equipment does not have synchronisation source, and without synchronization
During source, the synchronizing information that above-mentioned transmitting element 403 is sent includes the invalid synchronizing signal ID of setting and the user of itself sets
Standby ID.
In embodiments of the present invention, the invalid synchronizing signal ID set is 0x1FF, when what is sent by transmitting element 403
After invalid synchronizing signal ID is received and decoded with the second user equipment of the user equipment, second user equipment can be sentenced
Break upper level synchronisation source of the user equipment without recommendation.The transmission of transmitting element 500 includes the invalid synchronizing signal ID's of setting
Synchronizing information can be saved time in the second user equipment selection synchronisation source time and power consumption.
User equipment in the embodiment of the present invention also includes the first determining unit 401, for determining the 3rd user equipment
Synchronizing signal intensity level not less than setting first threshold and when maintaining the first duration of setting, triggering transmitting element 403 is to the
Two user equipmenies send the synchronizing information for the Synchronization Source for including the 3rd user equipment.
The synchronizing signal quality of only the 3rd user equipment is higher, and currently without business data transmission, just can guarantee that this
User equipment is properly received and demodulated D2D signals after synchronous with the 3rd user equipment and do not influence Consumer's Experience.
In embodiments of the present invention, user equipment also includes judging processing unit 404, for determining and second user equipment
Between without business data transmission when, judge the 3rd user equipment synchronizing signal intensity level whether less than first threshold and maintain set
The second fixed duration；When the synchronizing signal intensity level of the 3rd user equipment is less than first threshold in the second duration of setting, make
3rd user equipment is not re-used as the synchronisation source of user equipment；The synchronizing signal of the 3rd user equipment in the second duration of setting
When intensity level is not less than first threshold, user equipment stops sending synchronizing signal.
Processing unit 404 is judged in user equipment searches to the 3rd user equipment and is adjusted to synchronous with the 3rd user equipment
Afterwards, when and the first user equipment and second user equipment are without business data transmission, start-up study Off Timer, in certain time
The synchronizing signal of the 3rd user equipment of monitoring in section, and stop delay in first threshold of the synchronizing signal intensity level less than setting
Off Timer, now, the user equipment continue periodically to search for neighbouring synchronisation source；If the synchronization of synchronisation source in this time
Signal strength values are then continued waiting for until time-delay closing not less than the first threshold set, and currently without business data transmission
After timer expiry, the user equipment stops sending synchronizing information., can be before synchronisation source adjustment using processing unit 404 is judged
The synchronizing signal intensity level of synchronisation source is monitored, ensures the synchronisation source quality of gravity treatment.
User equipment provided in an embodiment of the present invention includes transmitting element, and transmitting element is used to send synchronizing information；And
When including the Synchronization Source of the 3rd user equipment in synchronizing information, set the second user using the user equipment as synchronisation source
It is standby that 3rd user equipment, and the new synchronisation source using the 3rd user equipment as second user equipment are searched for based on Synchronization Source.
Using the user equipment, search procedure of the user equipment when adjusting synchronisation source is simplified, it is same in adjustment to reduce user equipment
Power consumption during step source；And avoid and interrupt ongoing business data transmission during synchronisation source is adjusted, improve
Consumer's Experience.
Embodiment five
Fig. 5 is the structural representation of the user equipment in the embodiment of the present invention.As shown in figure 5, the embodiment of the present invention provides
User equipment include receiving unit 501 and adjustment unit 502.
Receiving unit 501 is used to receive the synchronous letter that the first user equipment of the synchronisation source as the user equipment is sent
Breath；
Synchronization Source includes the synchronizing signal ID of synchronisation source and the user equipment ID of synchronisation source.
The synchronizing information for the Synchronization Source for including the 3rd user equipment is sent in the first user equipment, i.e., comprising the 3rd
After the synchronizing signal ID of user equipment and the user equipment ID of the 3rd user equipment synchronizing information, receiving unit 501 will receive
The synchronizing information is simultaneously decoded to obtain the Synchronization Source in the object synchronization source in the synchronizing information of the first user equipment broadcast, is
Prepare in search object synchronization source.
Adjustment unit 502, during Synchronization Source for including the 3rd user equipment in synchronizing information, the 3rd is used
New synchronisation source of the family equipment as the user equipment.
Adjustment unit 502 is additionally operable to determine first threshold of the synchronizing signal intensity level not less than setting of the 3rd user equipment
And maintain the first duration of setting, the new synchronisation source using the 3rd user equipment as the user equipment.
User equipment in the embodiment of the present invention is using the first user equipment as synchronisation source, and the user of discontinuous reception first does not set
The synchronizing information that preparation is sent, include the synchronisation source of the 3rd user equipment in the synchronizing information for receiving the transmission of the first user equipment
During mark, adjustment unit 502 synchronizes source search and adjustment, now, the user equipment of user equipment searches the 3rd and same
3rd user equipment is adjusted to the synchronisation source of oneself when step signal quality is higher, completes the adjustment of synchronisation source.Meanwhile the user
Equipment is broadcasted using the 3rd user equipment as object synchronization source, synchronous to be indicated as other user equipmenies when eligible
Source.
User equipment provided in an embodiment of the present invention includes receiving unit 501 and adjustment unit 502, and receiving unit 501 is used
In the synchronizing information that the first user equipment for receiving the synchronisation source as user equipment is sent；Adjustment unit 502 is used in synchronization
When including the Synchronization Source of the 3rd user equipment in information, the 3rd user equipment is searched for based on Synchronization Source, and by the
New synchronisation source of three user equipmenies as user equipment.Using the user equipment, user equipment is simplified when adjusting synchronisation source
Search procedure, reduce power consumption of the user equipment when adjusting synchronisation source；And avoid during synchronisation source is adjusted
Ongoing business data transmission is interrupted, improves Consumer's Experience.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the shape of the embodiment in terms of the present invention can use hardware embodiment, software implementation or combination software and hardware
Formula.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more to use storage
The form for the computer program product that medium is implemented on (including but is not limited to magnetic disk storage and optical memory etc.).
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (16)
- A kind of 1. method of synchronisation source adjustment, it is characterised in that methods described includes：First user equipment sends synchronizing information to second user equipment；When including the Synchronization Source of the 3rd user equipment in the synchronizing information, it is same to make using first user equipment New synchronisation source of the second user equipment in step source using the 3rd user equipment as the second user equipment.
- 2. according to the method for claim 1, it is characterised in that methods described also includes：First user equipment determines first threshold of the synchronizing signal intensity level not less than setting of the 3rd user equipment And the first duration of setting is maintained, the Synchronization Source for including the 3rd user equipment is sent to the second user equipment Synchronizing information.
- 3. according to the method for claim 2, it is characterised in that methods described also includes：When first user equipment is determined between the second user equipment without business data transmission, judge that the described 3rd uses Whether the synchronizing signal intensity level of family equipment is less than the first threshold and maintains the second duration of setting；When the synchronizing signal intensity level of the 3rd user equipment is less than the first threshold in the second duration of the setting, The 3rd user equipment is set not to be re-used as the synchronisation source of first user equipment；The synchronizing signal intensity level of the 3rd user equipment is not less than the first threshold in the second duration of the setting When, first user equipment stops sending synchronizing signal.
- 4. according to the method described in any one of claims 1 to 3, it is characterised in that the Synchronization Source includes synchronisation source Synchronizing signal ID and synchronisation source user equipment ID.
- 5. according to the method for claim 4, it is characterised in that methods described also includes：When first user equipment determines itself without synchronisation source, the synchronizing information of transmission includes the invalid synchronous letter of setting Number ID and user equipment ID of itself.
- A kind of 6. method of synchronisation source adjustment, it is characterised in that methods described includes：Second user equipment receives the synchronizing information that the first user equipment of the synchronisation source as the second user equipment is sent；When including the Synchronization Source of the 3rd user equipment in the synchronizing information, the second user equipment is by described New synchronisation source of three user equipmenies as the second user equipment.
- 7. according to the method for claim 6, it is characterised in that the Synchronization Source includes the synchronizing signal ID of synchronisation source With the user equipment ID of synchronisation source.
- 8. the method according to claim 6 or 7, it is characterised in that methods described also includes：The second user equipment determines first threshold of the synchronizing signal intensity level not less than setting of the 3rd user equipment And maintain the first duration of setting, the new synchronisation source using the 3rd user equipment as the second user equipment.
- 9. a kind of user equipment, it is characterised in that the user equipment includes：Transmitting element, for sending synchronizing information to second user equipment；When including the Synchronization Source of the 3rd user equipment in the synchronizing information, make using the user equipment as synchronisation source New synchronisation source of the second user equipment using the 3rd user equipment as the second user equipment.
- 10. user equipment according to claim 9, it is characterised in that the user equipment also includes：First determining unit, for determining first threshold of the synchronizing signal intensity level not less than setting of the 3rd user equipment And the first duration of setting is maintained, trigger the transmitting element and include the 3rd user to second user equipment transmission The synchronizing information of the Synchronization Source of equipment.
- 11. user equipment according to claim 10, it is characterised in that the user equipment also includes：Judge processing unit, for determine and the second user equipment between without business data transmission when, judge the described 3rd Whether the synchronizing signal intensity level of user equipment is less than the first threshold and maintains the second duration of setting；When the synchronizing signal intensity level of the 3rd user equipment is less than the first threshold in the second duration of the setting, The 3rd user equipment is set not to be re-used as the synchronisation source of the user equipment；The synchronizing signal intensity level of the 3rd user equipment is not less than the first threshold in the second duration of the setting When, the user equipment stops sending synchronizing signal.
- 12. according to the user equipment described in any one of claim 9 to 11, it is characterised in that the Synchronization Source includes same The synchronizing signal ID in the step source and user equipment ID of synchronisation source.
- 13. user equipment according to claim 12, it is characterised in that the user equipment also includes：Second determining unit, for determining that the user equipment does not have synchronisation source, and when without synchronisation source, the transmitting element institute The synchronizing information of transmission includes the invalid synchronizing signal ID and the user equipment ID of itself of setting.
- 14. a kind of user equipment, it is characterised in that the user equipment includes：Receiving unit, the synchronizing information that the first user equipment for receiving the synchronisation source as the user equipment is sent；Adjustment unit, during Synchronization Source for including the 3rd user equipment in the synchronizing information, by the described 3rd New synchronisation source of the user equipment as the user equipment.
- 15. user equipment according to claim 14, it is characterised in that the Synchronization Source includes the synchronization of synchronisation source Signal ID and synchronisation source user equipment ID.
- 16. the user equipment according to claims 14 or 15, it is characterised in that the adjustment unit is additionally operable to：The synchronizing signal intensity level of the 3rd user equipment is determined not less than the first threshold set and maintains the first of setting Duration, the new synchronisation source using the 3rd user equipment as the user equipment.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610865615.XA CN107896387A (en) | 2016-09-29 | 2016-09-29 | A kind of method and user equipment of synchronisation source adjustment |
| PCT/CN2017/088309 WO2018059011A1 (en) | 2016-09-29 | 2017-06-14 | Method for adjusting synchronization source, user equipment and computer storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610865615.XA CN107896387A (en) | 2016-09-29 | 2016-09-29 | A kind of method and user equipment of synchronisation source adjustment |
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| CN107896387A true CN107896387A (en) | 2018-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610865615.XA Pending CN107896387A (en) | 2016-09-29 | 2016-09-29 | A kind of method and user equipment of synchronisation source adjustment |
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| Country | Link |
|---|---|
| CN (1) | CN107896387A (en) |
| WO (1) | WO2018059011A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022188647A1 (en) * | 2021-03-08 | 2022-09-15 | 华为技术有限公司 | Synchronization method and communication apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2954725A4 (en) * | 2013-02-06 | 2016-09-21 | Ericsson Telefon Ab L M | An enhanced solution for handover |
| CN105165076A (en) * | 2013-10-31 | 2015-12-16 | 华为技术有限公司 | Timing advance adjustment method and device |
| CN104812058A (en) * | 2014-01-24 | 2015-07-29 | 北京三星通信技术研究有限公司 | Method for implementing synchronization between D2D terminals and D2D terminal device |
| US9867156B2 (en) * | 2014-08-07 | 2018-01-09 | Electronics And Telecommunications Research Institute | Method and apparatus for synchronization in D2D communication network |
| CN105517139A (en) * | 2014-09-25 | 2016-04-20 | 中兴通讯股份有限公司 | Synchronization method and user equipment of D2D communication |
-
2016
- 2016-09-29 CN CN201610865615.XA patent/CN107896387A/en active Pending
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2017
- 2017-06-14 WO PCT/CN2017/088309 patent/WO2018059011A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022188647A1 (en) * | 2021-03-08 | 2022-09-15 | 华为技术有限公司 | Synchronization method and communication apparatus |
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| WO2018059011A1 (en) | 2018-04-05 |
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Application publication date: 20180410 |