CN106470456B - A kind of method and terminal carrying out relay selection in network termination - Google Patents
A kind of method and terminal carrying out relay selection in network termination Download PDFInfo
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- CN106470456B CN106470456B CN201510502963.6A CN201510502963A CN106470456B CN 106470456 B CN106470456 B CN 106470456B CN 201510502963 A CN201510502963 A CN 201510502963A CN 106470456 B CN106470456 B CN 106470456B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
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Abstract
The invention discloses a kind of methods and terminal that relay selection is carried out in network termination.On the one hand, before UE carries out the selection of link terminal according to relay selection rule, starting relay selection requests waiting timer.Timer expiry and still meet relay selection rule under the premise of, according to relay selection rule carry out link terminal selection.By waiting timer timing duration, overlay environment locating for UE may have occurred change, such as be moved to strong overlay area from weak overlay area, at this time when determining, it is unsatisfactory for relay selection trigger condition, then without relay selection, so as to avoid pingpang handoff.On the other hand, when reporting relay selection to request, also start relay selection waiting timer, if still not receiving relay selection order in the timer expiry, link terminal is then selected according to relay selection rule, avoiding terminal from being rapidly separated the network coverage leads to service disconnection.
Description
Technical field
The present invention relates to wireless communication technology field more particularly to a kind of method and ends that relay selection is carried out in network termination
End.
Background technique
In mobile communication system future development, in order to better meet user demand, D2D (Device-to- is introduced
Device), i.e. terminal direct connection technology refers to that neighbouring terminal can carry out data biography by direct connected link in short range
Defeated mode does not need to be forwarded by central node (i.e. base station), does not need to carry out UE by traditional cellular link yet
Between information transmission.It includes D2D discovery (Device to Device Discovery) mechanism and D2D communication (Device to
Device Communication) mechanism.
On the basis of D2D, for off-grid terminal (UE), if can be de- in order to which it can be communicated with network
Net UE select one it is neighbouring in net UE be its interim data, this be known as link terminal (Relay UE), this scene netting UE
Referred to as terminal to network relaying (UE to Network Relay).
Wherein, terminal is to network repeated link (UE to network relay link) by between Relay UE and eNB
To network link (D2N link) and Relay UE, (Remote UE refers to that needs are led to by relaying and base station to equipment with remote terminal
The UE of letter) between device-to-device link (D2D link) composition.
When terminal (UE) is from during net is moved to off-grid, UE needs business (the D2N from equipment to network link
Link it) is transferred to device-to-device link (D2D link), as shown in Figure 1.Connect if UE waits until that off-grid is established with relay again
It connects, before establishing from off-grid to relay successful connection, the business of UE will appear interruption.For the business of public safety class, need
Avoidance breakout as far as possible.In order to avoid this interruption, one is being netted UE when that will be detached from the network coverage, can be established in advance
Relay connection.
It selects in the relay of net UE at present there are two types of scheme, the relay choosing of the relay selection that eNB is controlled and UE control
It selects.
The core concept of the relay selection scheme of eNB control is: eNB is allocated to event of the remote UE based on measurement,
Remote UE reports candidate relay, eNB to select a relay when event triggers, then send relay select command to
Remote UE, remote UE is according to the command selection relay received.The benefit of this method is, compared to remote UE,
ENB knows the information of more relay and network, and remote UE can be helped to make reasonable selection, and network can obtain preferably
Performance.The disadvantage is that D2N link channel quality declines quickly, remote UE if remote UE is rapidly separated the network coverage
The connection with eNB may be just lost before receiving relay select command, then remote UE is just needed until completely de-
Net establishes connection with relay again, and the business of remote UE can interrupt.
The core concept of the relay selection scheme of UE control is: based on the relay selection rule being pre-configured or high level configures
Then, UE oneself selects relay.The benefit of this method is not depend on the control of eNB, can be completed under any circumstance
Relay selection, avoids remote UE in eNB control program and is rapidly separated issuable interruption when the network coverage.The disadvantage is that
Remote UE can only be selected based on less relay information, can not obtain the network performance of relatively optimization；In addition, being pre-configured
Or the relay of high-rise configuration selects regular comparative static, can not adapt to dynamic network coverage situation, may cause remote
UE needs service switching to relay by business switchback again in some weak overlay areas again after UE is moved to strong overlay area
Network causes business in relay and internetwork pingpang handoff.
Summary of the invention
The object of the present invention is to provide a kind of methods and terminal that relay selection is carried out in network termination, to solve eNB control
Relay selection method in, if remote UE be rapidly separated the problem of network coverage will lead to service disconnection and UE control
The problem of pingpang handoff of the relay selection of system.
The purpose of the present invention is what is be achieved through the following technical solutions:
In order to solve the problems, such as UE control relay selection pingpang handoff, the embodiment of the invention provides one kind in net
The method of UE progress relay selection, comprising:
After meeting the relay selection trigger condition in relay selection rule, starting relay selection requests waiting timer；
When relay selection request waiting timer time-out, and the relay selection trigger condition is still met, according to
The relay selection rule selects link terminal.
Optionally, after the relay selection trigger condition met in relay selection rule, starting relay selection request etc.
To timer, comprising:
Meet the relay selection trigger condition in relay selection rule, and determine to interrupt with network communication, starting selection is asked
Seek waiting timer.
Optionally, determining the foundation interrupted with network communication is:
T310 timer is currently running.
Optionally, after starting relay selection request waiting timer, this method further include:
When determining to restore with network communication, stop the relay selection request waiting timer, and still meeting in described
When selecting trigger condition, link terminal is selected according to the relay selection rule；
Alternatively, this method further include:
When determining to restore with network communication, stops the relay selection request waiting timer, still meeting the relaying
When selecting trigger condition, relay selection is reported to request, and start relay selection waiting timer；
If before the relay selection waiting timer time-out, receiving the relaying choosing in response to relay selection request
Order is selected, according to the relay selection command selection link terminal；
If the relay selection waiting timer is overtime but is not received by the relay selection order, in described
After selection rule selection link terminal.
Optionally, determining the foundation restored with network communication is:
T310 timer stops.
Optionally, this method further include:
Meet the relay selection trigger condition in relay selection rule, but do not interrupted with network communication, reports relay selection
Request, and start relay selection waiting timer；
If before the relay selection waiting timer time-out, receiving the relaying choosing in response to relay selection request
Order is selected, according to the relay selection command selection link terminal；
If the relay selection waiting timer is overtime but is not received by the relay selection order, in described
After selection rule selection link terminal.
Optionally, judgement is with the uninterrupted foundation of network communication:
T310 timer not running.
Based on above-mentioned any means embodiment, optionally, before starting the relay selection request waiting timer, the party
Method further include:
The relay selection, which is obtained, by broadcast or dedicated signaling requests waiting timer.
Based on above-mentioned any means embodiment, optionally, before starting the relay selection waiting timer, this method is also
Include:
The relay selection waiting timer is obtained by broadcast or dedicated signaling.
Based on inventive concept same as method, the embodiment of the present invention also provides a kind of terminal, comprising:
Relay selection requests waiting timer starting module, triggers item for meeting the relay selection in relay selection rule
After part, starting relay selection requests waiting timer；
Relay selection module for requesting waiting timer time-out when the relay selection, and still meets the relaying
Trigger condition is selected, link terminal is selected according to the relay selection rule.
Optionally, the relay selection request waiting timer starting module is used for:
Meet the relay selection trigger condition in relay selection rule, and determine to interrupt with network communication, starting selection is asked
Seek waiting timer.
Optionally, determining the foundation interrupted with network communication is:
T310 timer is currently running.
Optionally, the relay selection module is also used to: after starting relay selection request waiting timer, when judgement and net
Network communication recovery stops the relay selection request waiting timer, and when still meeting the relay selection trigger condition, root
Link terminal is selected according to the relay selection rule.
It optionally, further include that selection request reporting module works as judgement after starting relay selection request waiting timer
Restore with network communication, stops the relay selection request waiting timer, when still meeting the relay selection trigger condition,
It reports relay selection to request, and starts relay selection waiting timer；
The relay selection module is also used to:
If before the relay selection waiting timer time-out, receiving the relaying choosing in response to relay selection request
Order is selected, according to the relay selection command selection link terminal；
If the relay selection waiting timer is overtime but is not received by the relay selection order, in described
After selection rule selection link terminal.
Optionally, determining the foundation restored with network communication is:
T310 timer stops.
Optionally, further include selection request reporting module, trigger item for meeting the relay selection in relay selection rule
Part, but do not interrupted with network communication, report relay selection to request, and start relay selection waiting timer；
The relay selection module is also used to:
If before the relay selection waiting timer time-out, receiving the relaying choosing in response to relay selection request
Order is selected, according to the relay selection command selection link terminal；
If the relay selection waiting timer is overtime but is not received by the relay selection order, in described
After selection rule selection link terminal.
Optionally, judgement is with the uninterrupted foundation of network communication:
T310 timer not running.
Based on above-mentioned any terminal embodiment, optionally, further includes that relay selection request waiting timer obtains module, use
In before relay selection request waiting timer starting module starts the relay selection request waiting timer, pass through
Broadcast or dedicated signaling obtain the relay selection and request waiting timer.
Based on above-mentioned any terminal embodiment, optionally, further includes that relay selection waiting timer obtains module, be used for
Before the relay selection waiting timer starting module starts the relay selection waiting timer, pass through broadcast or dedicated letter
It enables and obtains the relay selection waiting timer.
Based on inventive concept same as method, the embodiment of the present invention also provides a kind of terminal, comprising:
Processor, memory and transceiver；
Processor is used for the reading program from memory, executes following process:
After meeting the relay selection trigger condition in relay selection rule, starting relay selection requests waiting timer；
When relay selection request waiting timer time-out, and the relay selection trigger condition is still met, according to
The relay selection rule selects link terminal.
Transceiver for sending and receiving data under the control of a processor.
Used data when memory is for saving processor execution operation.
Optionally, after meeting the relay selection trigger condition in relay selection rule, starting relay selection request etc. is undetermined
When device when, processor be used for from memory reading program, execute following process:
Meet the relay selection trigger condition in relay selection rule, and determine to interrupt with network communication, starting selection is asked
Seek waiting timer.
Optionally, determining the foundation interrupted with network communication is:
T310 timer is currently running.
Optionally, processor is also used to the reading program from memory, executes following process: starting relay selection request etc.
After timer, when determining to restore with network communication, stop the relay selection request waiting timer, and described still meeting
When relay selection trigger condition, link terminal is selected according to the relay selection rule.
Optionally, processor is also used to the reading program from memory, executes following process: starting relay selection request etc.
After timer, when determining to restore with network communication, stops the relay selection request waiting timer, still meeting in described
It when selecting trigger condition, reports relay selection to request by transceiver, and starts relay selection waiting timer；
If before the relay selection waiting timer time-out, receiving the relaying choosing in response to relay selection request
Order is selected, according to the relay selection command selection link terminal；
If the relay selection waiting timer is overtime but is not received by the relay selection order, in described
After selection rule selection link terminal.
Optionally, determining the foundation restored with network communication is:
T310 timer stops.
Optionally, processor is also used to the reading program from memory, executes following process: meeting in relay selection rule
Relay selection trigger condition, but do not interrupted with network communication, relay selection reported to request, and started relay selection and wait timing
Device；
If before the relay selection waiting timer time-out, receiving the relaying choosing in response to relay selection request
Order is selected, according to the relay selection command selection link terminal；
If the relay selection waiting timer is overtime but is not received by the relay selection order, in described
After selection rule selection link terminal.
Optionally, judgement is with the uninterrupted foundation of network communication:
T310 timer not running.
Based on above-mentioned any terminal embodiment, optionally, processor is also used to the reading program from memory, executes following
Process: before relay selection request waiting timer starting module starts the relay selection request waiting timer,
The relay selection, which is obtained, by broadcast or dedicated signaling requests waiting timer.
Based on above-mentioned any terminal embodiment, optionally, processor is also used to the reading program from memory, executes following
Process: before the relay selection waiting timer starting module starts the relay selection waiting timer, pass through broadcast
Or dedicated signaling obtains the relay selection waiting timer
In technical solution provided in an embodiment of the present invention, UE according to relay selection rule carry out link terminal selection it
Before, starting relay selection requests waiting timer.Timer expiry and still meet relay selection rule under the premise of, according to
The selection of relay selection rule progress link terminal.By waiting timer timing duration, overlay environment locating for UE may be sent out
Change has been given birth to, such as has been moved to strong overlay area from weak overlay area, at this time when determining, has been unsatisfactory for relay selection
Trigger condition, then without relay selection, so as to avoid pingpang handoff.
In relay selection method in order to solve eNB control, it will lead to if remote UE is rapidly separated the network coverage
The problem of service disconnection, the embodiment of the invention provides a kind of methods for carrying out relay selection in net UE, comprising:
Meet the relay selection trigger condition in relay selection rule, reports relay selection to request, and start relay selection
Waiting timer；
If before the relay selection waiting timer time-out, receiving the relaying choosing in response to relay selection request
Order is selected, according to the relay selection command selection link terminal；
If the relay selection waiting timer is overtime but is not received by the relay selection order, in described
After selection rule selection link terminal.
Optionally, before starting relay selection waiting timer, this method further include:
The relay selection waiting timer is obtained by broadcast or dedicated signaling.
Based on inventive concept same as method, the embodiment of the present invention also provides a kind of terminal, comprising:
Relay selection requests reporting module, for meeting the relay selection trigger condition in relay selection rule, reports
It is requested after selection, and starts relay selection waiting timer；
Relay selection module, if before for relay selection waiting timer time-out, received in response in described
After the relay selection order of selection request, according to the relay selection command selection link terminal；If described relay selection etc.
To timer expiry but it is not received by the relay selection order, link terminal is selected according to the relay selection rule.
It optionally, further include that relay selection waiting timer obtains module, for reporting mould in relay selection request
Before block starts relay selection waiting timer, the relay selection waiting timer is obtained by broadcast or dedicated signaling.
Based on inventive concept same as method, the embodiment of the present invention also provides a kind of terminal, comprising:
Processor, memory and transceiver；
Processor is used for the reading program from memory, executes following process:
Meet the relay selection trigger condition in relay selection rule, reports relay selection to request by transceiver, and open
Dynamic relay selection waiting timer；
If asked by transceiver in response to the relay selection before the relay selection waiting timer time-out
The relay selection order asked, according to the relay selection command selection link terminal；If the relay selection waiting timer
It time-out but is not received by the relay selection order, link terminal is selected according to the relay selection rule.
Transceiver, for sending and receiving data under the control of a processor.
Memory, used data when for saving processor execution operation.
Optionally, processor is also used to the reading program from memory, executes following process: requesting in the relay selection
Before reporting module starts relay selection waiting timer, the relay selection is obtained by broadcast or dedicated signaling and waits timing
Device.
Technical solution provided in an embodiment of the present invention, when reporting relay selection to request, also starting relay selection etc. is undetermined
When device, if still not receiving relay selection order in the timer expiry, according to relay selection rule select relaying eventually
End, avoiding terminal from being rapidly separated the network coverage leads to service disconnection.
Detailed description of the invention
Fig. 1 is the schematic diagram that business is transferred to D2D link in net UE from D2N link that the prior art provides；
Fig. 2 is a kind of method flow diagram provided in an embodiment of the present invention；
Fig. 3 is a kind of terminal schematic diagram provided in an embodiment of the present invention；
Fig. 4 is another method flow diagram provided in an embodiment of the present invention；
Fig. 5 is another terminal schematic diagram provided in an embodiment of the present invention；
Fig. 6 is another terminal structure schematic diagram provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with attached drawing, technical solution provided in an embodiment of the present invention is described in detail.
Fig. 2 show a kind of method flow diagram that relay selection is carried out in net UE provided in an embodiment of the present invention, specific to wrap
Include following operation:
Step 100, meet relay selection rule in relay selection trigger condition after, starting relay selection request etc. it is undetermined
When device.
In the embodiment of the present invention, relay selection rule is to be pre-configured or obtained by high-level signaling.Relay selection
Include relay selection trigger condition in rule, further includes the selection rule of link terminal.
The embodiment of the present invention misaligns content and link terminal after the relay selection trigger condition for including in selection rule
Selection Rule content be defined.
Step 110, when above-mentioned relay selection request waiting timer time-out, and still meet above-mentioned relay selection triggering item
Part selects link terminal according to above-mentioned relay selection rule.
Wherein, if relay selection request waiting timer is overtime, but it has been unsatisfactory for above-mentioned relay selection trigger condition,
Link terminal is not selected then.
In technical solution provided in an embodiment of the present invention, UE according to relay selection rule carry out link terminal selection it
Before, starting relay selection requests waiting timer.In relay selection request waiting timer time-out and still meet relay selection
Under the premise of rule, the selection of link terminal is carried out according to relay selection rule.Waiting timer meter is requested by relay selection
Overlay environment locating for Shi Shichang, UE may have occurred change, such as be moved to strong overlay area from weak overlay area,
At this time when determining, it is unsatisfactory for relay selection trigger condition, then without relay selection, so as to avoid pingpang handoff.
In the embodiment of the present invention, in above-mentioned steps 100, the trigger condition of starting relay selection request waiting timer can be with
It is only above-mentioned relay selection trigger condition, also may include other trigger conditions.For example, meeting the relaying in relay selection rule
Trigger condition is selected, and determines to interrupt with network communication, starting selection request waiting timer.
In the embodiment of the present invention, determine there are many foundations interrupted with network communication.For example, T310 timer is being transported
Row, then it represents that interrupted with network communication.In another example if the bit error rate is more than the threshold value of setting, then it represents that interrupted with network communication.
In another example if signal-to-noise ratio be more than setting threshold value, then it represents that with network communication interrupt, etc..
It is currently running using T310 timer as above-mentioned decision condition.Assuming that net UE according to be pre-configured with or height
The relay selection rule that layer signaling obtains determines to meet the relay selection trigger condition in relay selection rule, and determines
T310 timer is currently running, then starts relay selection request waiting timer；When relay selection request waiting timer time-out,
Judgement still meets above-mentioned relay selection trigger condition, then the selection of link terminal is carried out according to relay selection rule.
If the premise of starting relay selection request waiting timer further includes determining to interrupt with network communication, optionally,
After starting relay selection request waiting timer, when judgement and network communication recovery, at least the following two kinds processing mode:
One stops relay selection request waiting timer, and when still meeting above-mentioned relay selection trigger condition, according to
Above-mentioned relay selection rule selects link terminal.
Secondly, stop relay selection and request waiting timer, when still meeting above-mentioned relay selection trigger condition, report
It is requested after selection, and starts relay selection waiting timer；If before relay selection waiting timer time-out, receive in response to
The relay selection order of relay selection request, according to the relay selection command selection link terminal；If relay selection waits
Timer expiry but it is not received by relay selection order, link terminal is selected according to above-mentioned relay selection rule.
Wherein, before reporting relay selection to request, link terminal can also be selected according to relay selection rule.Correspondingly,
The link terminal of selection can be carried in relay selection request.The link terminal and/or relaying that all candidates can also be carried are eventually
Hold relevant information.Such case is equally applicable to the following each embodiment for needing that relay selection is reported to request.
It, can root again correspondingly, if relay selection waiting timer time-out but being not received by relay selection order
Link terminal is selected according to above-mentioned relay selection rule, it can also be whole using the link terminal selected before as the relaying of final choice
End.
In the present embodiment, when reporting relay selection to request, also start relay selection waiting timer, in the relay selection
If still not receiving relay selection order when waiting timer time-out, link terminal is selected according to relay selection rule, is kept away
Exempt from terminal and be rapidly separated the network coverage to lead to service disconnection.
Wherein, determine there are many foundations restored with network communication.Assuming that determining that the foundation interrupted with network communication is
T310 timer is currently running, correspondingly, determining with the foundation that network communication restores to be that T310 timer stops；Assuming that determine with
The foundation that network communication is interrupted is the threshold value that the bit error rate is more than setting, correspondingly, determining that with the foundation that network communication restores be to miss
Code rate is lower than the threshold value of setting (threshold value can be identical as the threshold value for determining to interrupt, can also be lower than the threshold value for determining to interrupt)；
Assuming that determining with the foundation that network communication is interrupted to be threshold value of the signal-to-noise ratio more than setting, correspondingly, determining to restore with network communication
Foundation be signal-to-noise ratio lower than the threshold value of setting (threshold value can be identical as the threshold value for determining to interrupt, can also be lower than determining in
Disconnected threshold value).
Still it is currently running using T310 timer as the decision condition interrupted with network communication.
In one embodiment, it is assumed that in net UE according to the relay selection rule being pre-configured with or high-level signaling obtains, sentence
Surely meet the relay selection trigger condition in relay selection rule, and determine that T310 timer is currently running, then start relaying
Selection request waiting timer；Before relay selection request waiting timer time-out, T310 timer stops, then stops relaying choosing
Request waiting timer is selected, when determining to still meet above-mentioned relay selection trigger condition, is then carried out according to relay selection rule
The selection of link terminal.
In another embodiment, it is assumed that it is regular according to the relay selection being pre-configured with or high-level signaling obtains in net UE,
Determine to meet the relay selection trigger condition in relay selection rule, and determine that T310 timer is currently running, then in starting
Waiting timer is requested after selection；Before relay selection request waiting timer time-out, T310 timer stops, then stops relaying
Selection request waiting timer reports relay selection to request when still meeting above-mentioned relay selection trigger condition, and starts relaying
Select waiting timer；If receiving the relaying in response to relay selection request before relay selection waiting timer time-out
Select command, according to the relay selection command selection link terminal；If relay selection waiting timer is overtime but does not receive
To relay selection order, link terminal is selected according to above-mentioned relay selection rule.
If the premise of starting relay selection request waiting timer further includes determining to interrupt with network communication, if met
Relay selection trigger condition in relay selection rule, but do not interrupted with network communication, there are at least two processing modes.
One is terminating the process of link terminal selection.
The second is relay selection is reported to request, and start relay selection waiting timer；If relay selection waits timing
Before device time-out, the relay selection order in response to relay selection request is received, according among the above after select command selection relaying
Terminal；If relay selection waiting timer is overtime but is not received by relay selection order, according to above-mentioned relay selection rule
Select link terminal.
In the embodiment of the present invention, there are many judgements and the uninterrupted foundation of network communication.Assuming that in judgement and network communication
Disconnected foundation is that T310 timer is currently running, correspondingly, determine be with the uninterrupted foundation of network communication T310 timer not
Operation；Assuming that it is more than the threshold value set that the foundation that judgement and network communication are interrupted, which is the bit error rate, correspondingly, judgement and network communication
Uninterrupted foundation is that the bit error rate is less than the threshold value；Assuming that determining to be signal-to-noise ratio with the foundation that network communication is interrupted to be more than setting
Threshold value, correspondingly, determine with the uninterrupted foundation of network communication be that signal-to-noise ratio is less than the threshold value.
Still it is currently running using T310 timer as the decision condition interrupted with network communication.
In one embodiment, it is assumed that in net UE according to the relay selection rule being pre-configured with or high-level signaling obtains, sentence
Surely meet the relay selection trigger condition in relay selection rule, but determine T310 timer not running, then terminate relay selection
Process.
In another embodiment, it is assumed that it is regular according to the relay selection being pre-configured with or high-level signaling obtains in net UE,
Determine to meet the relay selection trigger condition in relay selection rule, but determine T310 timer not running, reports relay selection
Request, and start relay selection waiting timer；If receiving and being selected in response to relaying before relay selection waiting timer time-out
The relay selection order for selecting request, according among the above after select command selection link terminal；If relay selection waiting timer
It time-out but is not received by relay selection order, link terminal is selected according to above-mentioned relay selection rule.
In above-mentioned each embodiment of the method, relay selection request waiting timer can be terminal side oneself setting,
It can be before starting relay selection request waiting timer, obtained by broadcast or dedicated signaling.
In above-mentioned each embodiment of the method, relay selection waiting timer can be terminal side oneself setting, can also be with
It is to be obtained before starting relay selection waiting timer by broadcast or dedicated signaling.
The embodiment of the present invention also provides a kind of method in net UE selection link terminal, this method comprises:
After meeting the relay selection trigger condition in relay selection rule, starting relay selection requests waiting timer.
Before above-mentioned relay selection request waiting timer time-out, link terminal is selected according to above-mentioned relay selection rule.
When above-mentioned relay selection request waiting timer time-out, and above-mentioned relay selection trigger condition is still met, passed through
The link terminal of above-mentioned selection realizes relayed communications.
The specific implementation of this method is referred to above-mentioned each embodiment based on Fig. 2, and details are not described herein again.
This implementation and the difference of the embodiment based on Fig. 2 are, can request waiting timer in relay selection
Before time-out, the selection of link terminal is carried out.
Based on inventive concept same as method, the embodiment of the present invention also provides a kind of terminal, as shown in Figure 3, comprising:
Relay selection requests waiting timer starting module 301, for meeting the relay selection touching in relay selection rule
After clockwork spring part, starting relay selection requests waiting timer；
Relay selection module 302 for requesting waiting timer time-out when the relay selection, and is still met in described
After selection trigger condition, link terminal is selected according to the relay selection rule.
In technical solution provided in an embodiment of the present invention, UE according to relay selection rule carry out link terminal selection it
Before, starting relay selection requests waiting timer.Timer expiry and still meet relay selection rule under the premise of, according to
The selection of relay selection rule progress link terminal.By waiting timer timing duration, overlay environment locating for UE may be sent out
Change has been given birth to, such as has been moved to strong overlay area from weak overlay area, at this time when determining, has been unsatisfactory for relay selection
Trigger condition, then without relay selection, so as to avoid pingpang handoff.
Optionally, the relay selection request waiting timer starting module is used for:
Meet the relay selection trigger condition in relay selection rule, and determine to interrupt with network communication, starting selection is asked
Seek waiting timer.
Optionally, determining the foundation interrupted with network communication is:
T310 timer is currently running.
Optionally, the relay selection module is also used to: after starting relay selection request waiting timer, when judgement and net
Network communication recovery stops the relay selection request waiting timer, and when still meeting the relay selection trigger condition, root
Link terminal is selected according to the relay selection rule.
It optionally, further include that selection request reporting module works as judgement after starting relay selection request waiting timer
Restore with network communication, stops the relay selection request waiting timer, when still meeting the relay selection trigger condition,
It reports relay selection to request, and starts relay selection waiting timer；
The relay selection module is also used to:
If before the relay selection waiting timer time-out, receiving the relaying choosing in response to relay selection request
Order is selected, according to the relay selection command selection link terminal；
If the relay selection waiting timer is overtime but is not received by the relay selection order, in described
After selection rule selection link terminal.
Optionally, determining the foundation restored with network communication is:
T310 timer stops.
Optionally, further include selection request reporting module, trigger item for meeting the relay selection in relay selection rule
Part, but do not interrupted with network communication, report relay selection to request, and start relay selection waiting timer；
The relay selection module is also used to:
If before the relay selection waiting timer time-out, receiving the relaying choosing in response to relay selection request
Order is selected, according to the relay selection command selection link terminal；
If the relay selection waiting timer is overtime but is not received by the relay selection order, in described
After selection rule selection link terminal.
Optionally, judgement is with the uninterrupted foundation of network communication:
T310 timer not running.
Based on above-mentioned any terminal embodiment, optionally, further includes that relay selection request waiting timer obtains module, use
In before relay selection request waiting timer starting module starts the relay selection request waiting timer, pass through
Broadcast or dedicated signaling obtain the relay selection and request waiting timer.
Based on above-mentioned any terminal embodiment, optionally, further includes that relay selection waiting timer obtains module, be used for
Before the relay selection waiting timer starting module starts the relay selection waiting timer, pass through broadcast or dedicated letter
It enables and obtains the relay selection waiting timer.
Fig. 4 show another method flow diagram that relay selection is carried out in net UE provided in an embodiment of the present invention, specifically
Including operating as follows:
Step 200, meet relay selection rule in relay selection trigger condition, report relay selection to request, and start
Relay selection waiting timer.
In the embodiment of the present invention, relay selection rule is to be pre-configured or obtained by high-level signaling.Relay selection
Include relay selection trigger condition in rule, further includes the selection rule of link terminal.
The embodiment of the present invention misaligns content and link terminal after the relay selection trigger condition for including in selection rule
Selection Rule content be defined.
If receiving and being requested in response to above-mentioned relay selection before step 210, above-mentioned relay selection waiting timer time-out
Relay selection order, according among the above after select command select link terminal.
If step 220, above-mentioned relay selection waiting timer are overtime but are not received by among the above after select command, root
Link terminal is selected according to above-mentioned relay selection rule.
Technical solution provided in an embodiment of the present invention, when reporting relay selection to request, also starting relay selection etc. is undetermined
When device, if still not receiving relay selection order in the timer expiry, according to relay selection rule select relaying eventually
End, avoiding terminal from being rapidly separated the network coverage leads to service disconnection.
In the embodiment of the present invention, relay selection waiting timer can be terminal side oneself setting, be also possible to opening
Before dynamic relay selection waiting timer, obtained by broadcast or dedicated signaling.
Based on inventive concept same as method, the embodiment of the present invention also provides a kind of terminal, as shown in Figure 5, comprising:
Relay selection requests reporting module 501, for meeting the relay selection trigger condition in relay selection rule, reports
Relay selection request, and start relay selection waiting timer；
Relay selection module 502, if received before for the relay selection waiting timer time-out in response to described
The relay selection order of relay selection request, according to the relay selection command selection link terminal；If the relay selection
Waiting timer is overtime but is not received by the relay selection order, selects link terminal according to the relay selection rule.
Technical solution provided in an embodiment of the present invention, when reporting relay selection to request, also starting relay selection etc. is undetermined
When device, if still not receiving relay selection order in the timer expiry, according to relay selection rule select relaying eventually
End, avoiding terminal from being rapidly separated the network coverage leads to service disconnection.
It optionally, further include that relay selection waiting timer obtains module, for reporting mould in relay selection request
Before block starts relay selection waiting timer, the relay selection waiting timer is obtained by broadcast or dedicated signaling.
Based on inventive concept same as method, the embodiment of the present invention also provides a kind of terminal, as shown in Figure 6, comprising:
Processor 600, memory 620 and transceiver 610.
Transceiver 610 is for sending and receiving data under the control of processor 600.
Used data when memory 620 is for saving the execution operation of processor 600.
On the one hand, processor 600 is used for the reading program from memory 620, executes following process:
After meeting the relay selection trigger condition in relay selection rule, starting relay selection requests waiting timer；
When relay selection request waiting timer time-out, and the relay selection trigger condition is still met, according to
The relay selection rule selects link terminal.
Before UE carries out the selection of link terminal according to relay selection rule, starting relay selection request waits timing
Device.In timer expiry and under the premise of still meet relay selection rule, link terminal is carried out according to relay selection rule
Selection.By waiting timer timing duration, overlay environment locating for UE may have occurred change, such as from the weak area of coverage
Domain is moved to strong overlay area, at this time when determining, has been unsatisfactory for relay selection trigger condition, then without relay selection,
So as to avoid pingpang handoff.
On the other hand, processor 600 is used for the reading program from memory 620, executes following process:
Meet the relay selection trigger condition in relay selection rule, reports relay selection to request by transceiver 610, and
Start relay selection waiting timer；
If asked by transceiver in response to the relay selection before the relay selection waiting timer time-out
The relay selection order asked, according to the relay selection command selection link terminal；If the relay selection waiting timer
It time-out but is not received by the relay selection order, link terminal is selected according to the relay selection rule.
When reporting relay selection to request, also start relay selection waiting timer, if still in the timer expiry
Relay selection order is not so received, then link terminal is selected according to relay selection rule, terminal is avoided to be rapidly separated the network coverage
Lead to service disconnection.
Wherein, in Fig. 6, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor 600
The various circuits for the memory that the one or more processors and memory 620 of representative represent link together.Bus architecture is also
Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can be linked together, these are all
It is it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 610 can
To be multiple element, that is, includes transmitter and receiver, the list for communicating over a transmission medium with various other devices is provided
Member.For different user equipmenies, user interface 630, which can also be, external the interface for needing equipment is inscribed, and connection is set
Standby including but not limited to keypad, display, loudspeaker, microphone, control stick etc..
Processor 600, which is responsible for management bus architecture and common processing, memory 620, can store processor 600 and is holding
Used data when row operation.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (20)
1. a kind of method for carrying out relay selection in network termination characterized by comprising
After meeting the relay selection trigger condition in relay selection rule, and determine to interrupt with network communication, starting relaying choosing
Select request waiting timer；
When relay selection request waiting timer time-out, and the relay selection trigger condition is still met, according to described
Relay selection rule selects link terminal；
Meeting the relay selection trigger condition in relay selection rule, but do not interrupted with network communication, relay selection is reported to ask
It asks, and starts relay selection waiting timer；
If before the relay selection waiting timer time-out, receiving the relay selection life in response to relay selection request
It enables, according to the relay selection command selection link terminal；
If the relay selection waiting timer is overtime but is not received by the relay selection order, selected according to the relaying
Select rule selection link terminal.
2. the method according to claim 1, wherein determining that the foundation interrupted with network communication is:
T310 timer is currently running.
3. the method according to claim 1, wherein starting relay selection request waiting timer after, this method
Further include:
When determining to restore with network communication, stop the relay selection request waiting timer, and still meeting the relaying choosing
When selecting trigger condition, link terminal is selected according to the relay selection rule.
4. the method according to claim 1, wherein starting relay selection request waiting timer after, this method
Further include:
When determining to restore with network communication, stops the relay selection request waiting timer, still meeting the relay selection
When trigger condition, relay selection is reported to request, and starts relay selection waiting timer；
If before the relay selection waiting timer time-out, receiving the relay selection life in response to relay selection request
It enables, according to the relay selection command selection link terminal；
If the relay selection waiting timer is overtime but is not received by the relay selection order, selected according to the relaying
Select rule selection link terminal.
5. the method according to claim 3 or 4, which is characterized in that determine that the foundation restored with network communication is:
T310 timer stops.
6. the method according to claim 1, wherein judgement is with the uninterrupted foundation of network communication:
T310 timer not running.
7. according to claim 1~4, method described in any one of 6, which is characterized in that start described relay selection request etc.
Before timer, this method further include:
The relay selection, which is obtained, by broadcast or dedicated signaling requests waiting timer.
8. according to claim 1, method described in any one of 4,6, which is characterized in that start the relay selection and wait timing
Before device, this method further include:
The relay selection waiting timer is obtained by broadcast or dedicated signaling.
9. a kind of method for carrying out relay selection in network termination characterized by comprising
Meet the relay selection trigger condition in relay selection rule, relay selection is reported to request, starting relay selection etc. is undetermined
When device；
If before the relay selection waiting timer time-out, receiving the relay selection life in response to relay selection request
It enables, according to the relay selection command selection link terminal；
If the relay selection waiting timer is overtime but is not received by the relay selection order, selected according to the relaying
Select rule selection link terminal.
10. according to the method described in claim 9, it is characterized in that, this method is also before starting relay selection waiting timer
Include:
The relay selection waiting timer is obtained by broadcast or dedicated signaling.
11. a kind of terminal characterized by comprising
Relay selection requests waiting timer starting module, for meeting the relay selection trigger condition in relay selection rule
Afterwards, and determine to interrupt with network communication, starting relay selection requests waiting timer；
Relay selection module for requesting waiting timer time-out when the relay selection, and still meets the relay selection
Trigger condition selects link terminal according to the relay selection rule；
Selection request reporting module, for meeting the relay selection trigger condition in relay selection rule, but not with network communication
It interrupts, reports relay selection to request, and start relay selection waiting timer；
The relay selection module is also used to:
If before the relay selection waiting timer time-out, receiving the relay selection life in response to relay selection request
It enables, according to the relay selection command selection link terminal；
If the relay selection waiting timer is overtime but is not received by the relay selection order, selected according to the relaying
Select rule selection link terminal.
12. terminal according to claim 11, which is characterized in that determine that the foundation interrupted with network communication is:
T310 timer is currently running.
13. terminal according to claim 11, which is characterized in that the relay selection module is also used to: starting relaying choosing
After selecting request waiting timer, when determining to restore with network communication, stop the relay selection request waiting timer, and still
When meeting the relay selection trigger condition, link terminal is selected according to the relay selection rule.
14. terminal according to claim 11, which is characterized in that further include selection request reporting module, used in starting
After waiting timer is requested in selection, when determining to restore with network communication, stop the relay selection request waiting timer,
When still meeting the relay selection trigger condition, relay selection is reported to request, and starts relay selection waiting timer；
The relay selection module is also used to:
If before the relay selection waiting timer time-out, receiving the relay selection life in response to relay selection request
It enables, according to the relay selection command selection link terminal；
If the relay selection waiting timer is overtime but is not received by the relay selection order, selected according to the relaying
Select rule selection link terminal.
15. terminal described in 3 or 14 according to claim 1, which is characterized in that determine that the foundation restored with network communication is:
T310 timer stops.
16. terminal according to claim 11, which is characterized in that judgement is with the uninterrupted foundation of network communication:
T310 timer not running.
17. terminal described in any one of 1~14,16 according to claim 1, which is characterized in that further include relay selection request
Waiting timer obtains module, asks for starting the relay selection in relay selection request waiting timer starting module
Before seeking waiting timer, the relay selection is obtained by broadcast or dedicated signaling and requests waiting timer.
18. terminal described in any one of 1,14,16 according to claim 1, which is characterized in that further include that relay selection etc. is undetermined
When device obtain module, for the relay selection waiting timer starting module start the relay selection waiting timer it
Before, the relay selection waiting timer is obtained by broadcast or dedicated signaling.
19. a kind of terminal characterized by comprising
Relay selection requests reporting module, for meeting the relay selection trigger condition in relay selection rule, relaying is reported to select
Request is selected, and starts relay selection waiting timer；
Relay selection module, if receiving and being selected in response to the relaying before for the relay selection waiting timer time-out
The relay selection order for selecting request, according to the relay selection command selection link terminal；If the relay selection etc. is undetermined
When device time-out but be not received by the relay selection order, link terminal is selected according to the relay selection rule.
20. terminal according to claim 19, which is characterized in that it further include that relay selection waiting timer obtains module,
For being obtained by broadcast or dedicated signaling before relay selection request reporting module starting relay selection waiting timer
Take the relay selection waiting timer.
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| WO2021246836A1 (en) * | 2020-06-05 | 2021-12-09 | 엘지전자 주식회사 | Operating method of ue related to relay in wireless communication system |
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| EP3592034A4 (en) * | 2017-03-23 | 2020-06-03 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Switching method, terminal equipment and network equipment |
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| CN103096402B (en) * | 2011-11-01 | 2015-09-09 | 普天信息技术研究院有限公司 | A kind of residence reselecting and a kind of cell switching method |
| CN104469827B (en) * | 2013-09-25 | 2018-09-14 | 电信科学技术研究院 | A kind of processing method and processing device of Radio Link Failure |
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| CN101242637A (en) * | 2007-02-05 | 2008-08-13 | 华为技术有限公司 | Relay device, wireless communication network access method and wireless communication system |
| CN102187706A (en) * | 2009-07-02 | 2011-09-14 | 华为技术有限公司 | Handover method and device |
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Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
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Effective date of registration: 20210531 Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |