CN105898686B - A kind of method and user equipment of Radio Link Failure recovery - Google Patents
A kind of method and user equipment of Radio Link Failure recovery Download PDFInfo
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- CN105898686B CN105898686B CN201610410146.2A CN201610410146A CN105898686B CN 105898686 B CN105898686 B CN 105898686B CN 201610410146 A CN201610410146 A CN 201610410146A CN 105898686 B CN105898686 B CN 105898686B
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- radio link
- physical layer
- link failure
- rrc layer
- preset condition
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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]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/19—Connection re-establishment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/25—Maintenance of established connections
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/27—Transitions between radio resource control [RRC] states
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- Computer Networks & Wireless Communication (AREA)
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- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of Radio Link Failure restore method, comprising: detection UE whether Radio Link Failure；If UE Radio Link Failure, judge whether UE meets a preset condition；If UE meets preset condition, coverage enhancement rank is promoted, to realize the recovery of Radio Link Failure.The present invention achievees the purpose that wireless link recovery, avoids being directly entered RRC connection reconstruction process and causing additional signaling overheads by promoting coverage enhancement rank.So efficiently solving in the prior art when carrying out Radio Link Failure recovery, there is technical issues that additional.Realize the technical effect of saving signaling expense.Meanwhile the invention also discloses a kind of user equipmenies.
Description
Technical field
The method and user restored the present invention relates to wireless communication technology field more particularly to a kind of Radio Link Failure are set
It is standby.
Background technique
In recent years, being surging forward with technology of Internet of things, MTC (Machine Type Communication, machinery compartment
Communication) business, such as smart meter reading, environmental monitoring, smart home and industrial monitoring, it is obtained because of its broad application prospect
To the close attention of industry.These typical case scenes are mostly car, the special enclosure space such as basement.Compare common communications
Environment will undergo the penetration loss of 20db in indoor MTC terminal, this will seriously affect the communication quality of MTC.
And traditional power control techniques can not effectively meet the signal attenuation compensation in indoor MTC terminal.In order to protect
Card MTC terminal reaches and existing GSM (Global in LTE (Long Term Evolution, long term evolution) system
System for Mobile Communication, global system for mobile communications) the identical coverage condition of system, 3GPP (the
3rd Generation Partnership Project, third generation communication partner partnership) in LTE R12 stage, starting
Using 20db covering gain as the inexpensive MTC terminal coverage enhancement technical research of target.
Under existing LTE system protocol specification, using unified wireless link recovery method, as shown in Figure 1.That is, in covering
After the UE (User Equipment, user equipment) of lid enhancing detects Radio Link Failure, control plane will be using connection weight
The method built restores Radio Link.However, being covered since LTE R12 is enhanced in physical layer using time domain repeat techniques, RRC
(Radio Resource Control, wireless resource management) layer enters signaling data bag caused by connection reconstruction process will
Time domain is carried out in physical layer to repeat to send, thus causes additional signaling overheads.
Summary of the invention
The embodiment of the present invention solves existing skill by providing the method and user equipment of a kind of Radio Link Failure recovery
In art when carrying out the recovery of Radio Link Failure, there is technical issues that additional.
On the one hand, the present invention provides a kind of methods that Radio Link Failure restores, comprising:
Detect user equipment (UE) whether Radio Link Failure；
If the UE Radio Link Failure, judges whether the UE meets a preset condition；
If the UE meets the preset condition, coverage enhancement rank is promoted, to realize the extensive of Radio Link Failure
It is multiple.
Preferably, the detection UE whether Radio Link Failure, comprising:
The physical layer of the UE measures a Reference Signal Received Power RSRP value every 10ms；
The physical layer is based on the RSRP value, and the wireless resource management rrc layer of Xiang Suoshu UE sends synchronizing indication or loses
Step instruction；
The rrc layer indicates determine whether Radio Link loses the UE based on the synchronizing indication received and step-out
It loses.
Preferably, the physical layer is based on the RSRP value, and Xiang Suoshu rrc layer sends synchronizing indication or step-out instruction, packet
It includes:
The physical layer calculates the first average value of the RSRP value in the synchronization time window of 100ms；
When first average value is higher than synchronous threshold value, the physical layer sends a subsynchronous finger to the rrc layer
Show.
Preferably, the physical layer is based on the RSRP value, and Xiang Suoshu rrc layer sends synchronizing indication or step-out instruction, also
Include:
The physical layer calculates the second average value of the RSRP value in the out of alignment time window of 200ms；
When second average value is lower than step-out threshold value, the physical layer sends a step-out to the rrc layer and refers to
Show.
Preferably, the rrc layer indicates determine whether the UE is wireless based on the synchronizing indication received and step-out
Link failure, comprising:
The rrc layer starting T310 timer and counter；Wherein, described when the T310 timer is run
Rrc layer often receives a synchronizing indication from the physical layer, then the counter adds 1, and the rrc layer is often received from the physical layer
It is indicated to a step-out, then the counter O reset；
In T310 timer operation, if the rrc layer receives continuous N311 synchronization from the physical layer
Instruction, it is determined that the UE wireless link recovery.
Preferably, the rrc layer indicates determine whether the UE is wireless based on the synchronizing indication received and step-out
Link failure, further includes:
In the T310 timer expiry, if the rrc layer does not receive continuous N311 synchronization from the physical layer
Instruction, it is determined that the UE Radio Link Failure.
It is preferably, described to judge whether the UE meets a preset condition, comprising:
Detect whether the UE is in coverage enhancement state；
If the UE is in the coverage enhancement state, detect whether the UE is in enhancing highest level state；
If the UE is not at the enhancing highest level state, it is based on presently described RSRP value, judgement passes through promotion
Can coverage enhancement rank restore radio link quality；
If radio link quality can be restored by promoting coverage enhancement rank, it is determined that the UE meets the default item
Part.
It is preferably, described to judge whether the UE meets a preset condition, further includes:
If the UE is in the enhancing highest level state, it is determined that the UE is unsatisfactory for the preset condition.
It is preferably, described to judge whether the UE meets a preset condition, further includes:
If radio link quality can not be restored by promoting coverage enhancement rank, it is determined that the UE is unsatisfactory for described default
Condition.
Preferably, the method that the Radio Link Failure restores, further includes:
If the UE is unsatisfactory for the preset condition, connection reconstruction process is entered by the rrc layer, to realize nothing
The recovery of wired link failure.
On the other hand, the present invention provides a kind of user equipmenies, comprising:
Detection unit, for detect user equipment (UE) whether Radio Link Failure；
Judging unit judges whether the UE meets a preset condition if being used for the UE Radio Link Failure；
Lift unit promotes coverage enhancement rank if meeting the preset condition for the UE, to realize wireless
The recovery of link failure.
Preferably, the detection unit, comprising:
Subelement is measured, the physical layer for the UE measures a Reference Signal Received Power RSRP value every 10ms；
Transmission sub-unit is based on the RSRP value for the physical layer, and the wireless resource management rrc layer of Xiang Suoshu UE is sent out
Synchronizing indication or step-out is sent to indicate；
It determines subelement, is indicated for the rrc layer based on the synchronizing indication received and step-out, determine the UE
Whether Radio Link Failure.
Preferably, the transmission sub-unit, comprising:
First computing module calculates the first of the RSRP value for the physical layer in the synchronization time window of 100ms
Average value；
First sending module, for when first average value is higher than synchronous threshold value, the physical layer is to the RRC
Layer sends primary synchronizing indication.
Preferably, the transmission sub-unit, further includes:
Second computing module calculates the second of the RSRP value for the physical layer in the out of alignment time window of 200ms
Average value；
Second sending module, for when second average value is lower than step-out threshold value, the physical layer to be to the RRC
Layer sends a step-out instruction.
Preferably, the determining subelement, comprising:
Starting module, for rrc layer starting T310 timer and counter；Wherein, in the T310 timer
When operation, the rrc layer often receives a synchronizing indication from the physical layer, then the counter adds 1, the rrc layer often from
The physical layer receives a step-out instruction, the then counter O reset；
First determining module is used in T310 timer operation, if the rrc layer is received from the physical layer
Continuous N311 synchronizing indication, it is determined that the UE wireless link recovery.
Preferably, the determining subelement, further includes:
Second determining module is used in the T310 timer expiry, if the rrc layer is not received from the physical layer
Continuous N311 synchronizing indication, it is determined that the UE Radio Link Failure.
Preferably, the judging unit, comprising:
First detection sub-unit, for detecting whether the UE is in coverage enhancement state；
Second detection sub-unit detects whether the UE is in if being in the coverage enhancement state for the UE
Enhance highest level state；
Judgment sub-unit is based on presently described RSRP if being not at the enhancing highest level state for the UE
Can value, judgement restore radio link quality by promoting coverage enhancement rank；
First determines subelement, if for that can restore radio link quality by promoting coverage enhancement rank, it is determined that institute
It states UE and meets the preset condition.
Preferably, the judging unit, further includes:
Second determines subelement, if being in the enhancing highest level state for the UE, it is determined that the UE is discontented
The foot preset condition.
Preferably, the judging unit, further includes:
Third determines subelement, if for that can not restore radio link quality by promoting coverage enhancement rank, it is determined that
The UE is unsatisfactory for the preset condition.
Preferably, the user equipment, further includes:
Into unit, if being unsatisfactory for the preset condition for the UE, connection reconstruction stream is entered by the rrc layer
Journey, to realize the recovery of Radio Link Failure.
The one or more technical solutions provided in the embodiment of the present invention, have at least the following technical effects or advantages:
In embodiments of the present invention, a kind of method that Radio Link Failure restores is disclosed, comprising: whether detection UE is wireless
Link failure；If UE Radio Link Failure, judge whether UE meets a preset condition；If UE meets preset condition, promoted
Coverage enhancement rank, to realize the recovery of Radio Link Failure.It is extensive to reach link by promoting coverage enhancement rank by the present invention
Multiple purpose avoids being directly entered RRC connection reconstruction process and causing additional signaling overheads.So efficiently solving existing
Have in technology when carrying out Radio Link Failure recovery, there is technical issues that additional.Realize saving signaling
The technical effect of expense.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, for this
For the those of ordinary skill of field, without creative efforts, it can also be obtained according to these attached drawings others
Attached drawing.
Fig. 1 is the flow chart of RRC connection reconstruction in the prior art；
Fig. 2 is the flow chart for the method that Radio Link Failure restores in the embodiment of the present invention；
Fig. 3 is that physical layer is shown based on RSRP value to what rrc layer transmission synchronizing indication or step-out indicated in the embodiment of the present invention
It is intended to；
Fig. 4 is the schematic diagram of wireless link recovery in the embodiment of the present invention；
Fig. 5 is the schematic diagram of Radio Link Failure in the embodiment of the present invention；
Fig. 6 is the structure chart of user equipment in the embodiment of the present invention.
Specific embodiment
The embodiment of the present invention solves existing skill by providing the method and user equipment of a kind of Radio Link Failure recovery
In art when carrying out the recovery of Radio Link Failure, there is technical issues that additional.
The technical solution of the embodiment of the present invention is in order to solve the above technical problems, general thought is as follows:
A kind of method that Radio Link Failure restores, comprising: detection UE whether Radio Link Failure；If UE Radio Link loses
It loses, then judges whether UE meets a preset condition；If UE meets preset condition, coverage enhancement rank is promoted, to realize nothing
The recovery of wired link failure.
In order to better understand the above technical scheme, in conjunction with appended figures and specific embodiments to upper
Technical solution is stated to be described in detail.
Embodiment one
A kind of method that Radio Link Failure restores is present embodiments provided, is applied to UE and (increases mainly for in-door covering
UE under strong environment) in, as shown in Fig. 2, this method comprises:
Step S101: detection UE whether Radio Link Failure.
In the specific implementation process, step S101, comprising:
The physical layer of UE measures a RSRP (Reference Signal Received Power, reference every 10ms
Signal reception power) value；Physical layer is based on RSRP value, sends synchronizing indication or step-out instruction to the rrc layer of UE；Rrc layer is based on
The synchronizing indication received and step-out instruction, determine UE whether link failure.
In the specific implementation process, as shown in figure 3, the physical layer be based on RSRP value, to rrc layer send synchronizing indication or
Step-out instruction, comprising:
Physical layer calculates the first average value of RSRP value in the synchronization time window (that is: in-sync time window) of 100ms；
When the first average value is higher than synchronous threshold value (that is: Qin value), physical layer sends primary synchronizing indication (that is: In to rrc layer
Sync instruction)；And
For physical layer in the out of alignment time window (that is: out-sync time window) of 200ms, calculate RSRP value second is average
Value；When the second average value is lower than step-out threshold value (that is: Qout value), physical layer sends a step-out instruction (i.e.: to rrc layer
Out Sync instruction).
In the specific implementation process, the synchronizing indication received based on rrc layer and step-out instruction, determine UE whether without
Wired link failure, comprising:
Rrc layer starts T310 timer and counter；Wherein, when T310 timer is run, rrc layer is often from physics
Layer receives a synchronizing indication, then counter adds 1, and rrc layer often receives a step-out instruction, then counter O reset from physical layer；
In the operation of T310 timer, if rrc layer receives continuous N311 synchronizing indication from physical layer, it is determined that UE
Wireless link recovery (as shown in Figure 4)；
In T310 timer expiry, if rrc layer does not receive continuous N311 synchronizing indication from physical layer, it is determined that UE
Radio Link Failure (as shown in Figure 5).
Step S102: if UE Radio Link Failure, judge whether UE meets a preset condition.
It is in the specific implementation process, in step s 102, described to judge whether UE meets a preset condition, comprising:
Whether detection UE is in coverage enhancement state；If UE is in coverage enhancement state, further detect whether UE locates
In enhancing highest level state；If UE is in enhancing highest level state, it is determined that UE is unsatisfactory for preset condition；If UE is not at
Enhance highest level state, be then based further on RSRP value, can judgement restore Radio Link by promoting coverage enhancement rank
Quality；If radio link quality can be restored by promoting coverage enhancement rank, it is determined that UE meets preset condition；If by mentioning
Radio link quality can not be restored by rising coverage enhancement rank, it is determined that UE is unsatisfactory for preset condition.
In the specific implementation process, it is being based on RSRP value, can judgement restore radio chains by promoting coverage enhancement rank
It when the quality of road, is provided according to 3GPP related specifications, coverage enhancement needs to be promoted the gain of 15db in total, in total according to coverage enhancement
There are 3 ranks, often mentions one level higher then can estimate, can be improved the gain of 5db.
Assuming that current RSRP value is x db, if after promoting level-one coverage enhancement rank, RSRP value is x+5db, at this point, in advance
Estimate in the synchronization time window (that is: in-sync time window) of 100ms, calculate the average value of RSRP value, if the average value is higher than together
It walks threshold value (that is: Qin value), then shows that radio link quality can be restored by promoting level-one coverage enhancement rank；If this is flat
Mean value is not higher than synchronous threshold value, then shows that radio link quality can not be restored by promoting level-one coverage enhancement rank.
When by promoting level-one coverage enhancement rank radio link quality can not be restored, then consider that promoting two-stage covering increases
Intensity level is other, then RSRP value is x+10db, then judges whether the average value of the RSRP value in the synchronization time window of 100ms is higher than synchronization
Threshold value (that is: Qin value) shows that radio link quality can enough be restored by promoting two-stage coverage enhancement rank if being higher than, no
Then, show that radio link quality can not be restored by promoting two-stage coverage enhancement rank.
If promoting two-stage coverage enhancement rank still can not restore radio link quality, consider that promoting the covering of two three-levels increases
Intensity level is other, then RSRP value is x+15db, then judges whether the average value of the RSRP value in the synchronization time window of 100ms is higher than synchronization
Threshold value (that is: Qin value) shows that radio link quality can be restored by promoting three-level coverage enhancement rank if being higher than, otherwise,
Show that radio link quality can not be restored by promoting three-level coverage enhancement rank.
Step S103: if UE meets preset condition, promoting coverage enhancement rank, to realize the extensive of Radio Link Failure
It is multiple.
In the specific implementation process, it when radio link quality can be restored by promoting level-one coverage enhancement rank, is then promoted
Level-one coverage enhancement rank；It can not restore radio link quality promoting level-one coverage enhancement rank, but promote two-stage covering and increase
When intensity level can not restore radio link quality, then two-stage coverage enhancement rank is promoted；Promoted two-stage coverage enhancement rank without
Method restores radio link quality, but promotes three-level coverage enhancement rank when can restore radio link quality, then promotes three-level and cover
Lid enhancing rank.
In the present embodiment, when detecting Radio Link Failure, one or more levels coverage enhancement grade is promoted by estimating
The attainable link gain of other institute decides whether that executing coverage enhancement rank is promoted to restore Radio Link, avoid directly into
Enter RRC connection reconstruction process and causes additional signaling overheads.
Step S104: if UE is unsatisfactory for preset condition, connection reconstruction process is entered by the rrc layer of UE, to realize
The recovery of Radio Link Failure.
In the specific implementation process, as shown in Figure 1, rrc layer enters the process of connection reconstruction, comprising: be in coverage enhancement
UE to eNodeB send " RRC connection recovery request " signaling (that is: " RRC Connection Reestablishment
Request " signaling), eNodeB sends " RRC connection recovery " signaling (that is: " RRC Connection to UE
Reestablishment " signaling), UE sends " RRC connection restores to complete " signaling (that is: " RRC Connection to eNodeB
Reestablishment Complete " signaling) ... ..., signaling is (i.e.: to UE transmission " RRC connection reconfigures " by eNodeB
" RRC Connection Reconfiguration " signaling), UE sends " RRC connection reconfigures completion " (i.e.: to eNodeB
" RRC Connection Reconfiguration Complete " signaling), etc..
Technical solution in the embodiments of the present invention, at least have the following technical effects or advantages:
In the embodiment of the present invention, disclose a kind of method that Radio Link Failure restores, comprising: detection UE whether radio chains
Road failure；If UE Radio Link Failure, judge whether UE meets a preset condition；If UE meets preset condition, promotion is covered
Lid enhancing rank, to realize the recovery of Radio Link Failure.The present invention reaches link-recovery by promoting coverage enhancement rank
Purpose, avoid being directly entered RRC connection reconstruction process and causing additional signaling overheads.So efficiently solving existing
In technology when carrying out Radio Link Failure recovery, there is technical issues that additional.Saving signaling is realized to open
The technical effect of pin.
Embodiment two
Based on the same inventive concept, a kind of user equipment (that is: UE) is present embodiments provided, as shown in Figure 6, comprising:
Detection unit 201, for detect user equipment (UE) whether Radio Link Failure；
Judging unit 202 judges whether UE meets a preset condition if being used for UE Radio Link Failure；
Lift unit 203 promotes coverage enhancement rank if meeting preset condition for UE, to realize Radio Link
The recovery of failure.
Optionally, detection unit 201, comprising:
Subelement is measured, the physical layer for UE measures a Reference Signal Received Power RSRP value every 10ms；
Transmission sub-unit, for physical layer be based on RSRP value, to the wireless resource management rrc layer of UE send synchronizing indication or
Step-out instruction；
Determine subelement, synchronizing indication for being received based on rrc layer and step-out instruction, determine UE whether Radio Link
Failure.
Optionally, transmission sub-unit, comprising:
First computing module calculates the first average value of RSRP value for physical layer in the synchronization time window of 100ms；
First sending module, for when the first average value is higher than synchronous threshold value, physical layer to send primary same to rrc layer
Step instruction.
Optionally, transmission sub-unit, further includes:
Second computing module calculates the second average value of RSRP value for physical layer in the out of alignment time window of 200ms；
Second sending module, for when the second average value is lower than step-out threshold value, physical layer to send primary lose to rrc layer
Step instruction.
Optionally it is determined that subelement, comprising:
Starting module, for rrc layer starting T310 timer and counter；Wherein, when T310 timer is run,
Rrc layer often receives a synchronizing indication from physical layer, then counter adds 1, and rrc layer often receives a step-out instruction from physical layer,
Then counter O reset；
First determining module is used in the operation of T310 timer, if rrc layer receives continuous N311 from physical layer
Synchronizing indication, it is determined that UE wireless link recovery.
Optionally it is determined that subelement, further includes:
Second determining module is used in T310 timer expiry, if rrc layer does not receive continuous N311 from physical layer
Synchronizing indication, it is determined that UE Radio Link Failure.
Optionally, judging unit 202, comprising:
First detection sub-unit, for detecting whether UE is in coverage enhancement state；
Second detection sub-unit detects whether UE is in enhancing highest level if being in coverage enhancement state for UE
State；
Judgment sub-unit is based on current RSRP value, judgement is by mentioning if being not at enhancing highest level state for UE
Can coverage enhancement rank be risen restore radio link quality；
First determines subelement, if for that can restore radio link quality by promoting coverage enhancement rank, it is determined that UE
Meet preset condition.
Optionally, judging unit 202, further includes:
Second determines subelement, if being in enhancing highest level state for UE, it is determined that UE is unsatisfactory for preset condition.
Optionally, judging unit 202, further includes:
Third determines subelement, if for that can not restore radio link quality by promoting coverage enhancement rank, it is determined that
UE is unsatisfactory for preset condition.
Optionally, user equipment, further includes:
Into unit 204, if being unsatisfactory for preset condition for UE, connection reconstruction process is entered by rrc layer, thus real
The recovery of existing Radio Link Failure.
Since the user equipment that the present embodiment is introduced is to implement the side that Radio Link Failure restores in the embodiment of the present invention
Equipment used by method, so based on the method that Radio Link Failure described in the embodiment of the present invention restores, this field institute
The specific embodiment and its various change form of user equipment of the present embodiment can be understood by belonging to technical staff, so herein
How method in the embodiment of the present invention is realized if being no longer discussed in detail for the user equipment.As long as those skilled in the art
Implement equipment used by the method that Radio Link Failure restores in the embodiment of the present invention, belongs to the model of the invention to be protected
It encloses.
Technical solution in the embodiments of the present invention, at least have the following technical effects or advantages:
In the embodiment of the present invention, a kind of user equipment (that is: UE) is disclosed, comprising: detection unit is set for detecting user
Standby UE whether Radio Link Failure；Judging unit judges whether UE meets a default item if being used for UE Radio Link Failure
Part；Lift unit promotes coverage enhancement rank if meeting preset condition for UE, to realize the extensive of Radio Link Failure
It is multiple.The present invention achievees the purpose that link-recovery, avoids being directly entered RRC connection reconstruction process by promoting coverage enhancement rank
And cause additional signaling overheads.So efficiently solving in the prior art when carrying out Radio Link Failure recovery, exist
The technical issues of additional signaling overheads.Realize the technical effect of saving signaling expense.
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 (8)
1. a kind of method that Radio Link Failure restores characterized by comprising
Detect user equipment (UE) whether Radio Link Failure comprising: the physical layer of the UE measures primary reference every 10ms
Signal reception power RSRP value；The physical layer is based on the RSRP value, and the wireless resource management rrc layer of Xiang Suoshu UE sends same
Step instruction or step-out instruction；The rrc layer indicated based on the synchronizing indication received and step-out, determine the UE whether without
Wired link failure；
Wherein, the physical layer is based on the RSRP value, and the wireless resource management rrc layer of Xiang Suoshu UE sends synchronizing indication or loses
Step instruction, comprising: the physical layer calculates the first average value of the RSRP value in the synchronization time window of 100ms；Described
When first average value is higher than synchronous threshold value, the physical layer sends primary synchronizing indication to the rrc layer；The physical layer exists
In the out of alignment time window of 200ms, the second average value of the RSRP value is calculated；It is lower than step-out threshold value in second average value
When, the physical layer sends a step-out instruction to the rrc layer；
Wherein, the rrc layer is indicated based on the synchronizing indication received and step-out, determines whether Radio Link loses the UE
It loses, comprising: the rrc layer starting T310 timer and counter；Wherein, described when the T310 timer is run
Rrc layer often receives a synchronizing indication from the physical layer, then the counter adds 1, and the rrc layer is often received from the physical layer
It is indicated to a step-out, then the counter O reset；In T310 timer operation, if the rrc layer is from the physics
Layer receives continuous N311 synchronizing indication, it is determined that the UE wireless link recovery；In the T310 timer expiry,
If the rrc layer does not receive continuous N311 synchronizing indication from the physical layer, it is determined that the UE Radio Link Failure；
If the UE Radio Link Failure, judges whether the UE meets a preset condition；It is described to judge whether the UE is full
One preset condition of foot, comprising: detect whether the UE is in coverage enhancement state；If the UE is in the coverage enhancement shape
State, then detect whether the UE is in enhancing highest level state；If the UE is not at the enhancing highest level state,
Power RSRP value is received based on current reference signal, can judgement restore radio link quality by promoting coverage enhancement rank；
If radio link quality can be restored by promoting coverage enhancement rank, it is determined that the UE meets the preset condition；
If the UE meets the preset condition, coverage enhancement rank is promoted, to realize the recovery of Radio Link Failure.
2. Radio Link Failure restoration methods as described in claim 1, which is characterized in that described to judge whether the UE meets
One preset condition, further includes:
If the UE is in the enhancing highest level state, it is determined that the UE is unsatisfactory for the preset condition.
3. Radio Link Failure restoration methods as described in claim 1, which is characterized in that described to judge whether the UE meets
One preset condition, further includes:
If radio link quality can not be restored by promoting coverage enhancement rank, it is determined that the UE is unsatisfactory for the default item
Part.
4. the method that Radio Link Failure as described in claim 1 restores, which is characterized in that further include:
If the UE is unsatisfactory for the preset condition, connection reconstruction process is entered by rrc layer, to realize that Radio Link loses
The recovery lost.
5. a kind of user equipment characterized by comprising
Detection unit, for detect user equipment (UE) whether Radio Link Failure；The detection unit, comprising: measurement subelement,
Physical layer for the UE measures a Reference Signal Received Power RSRP value every 10ms；Transmission sub-unit, for described
Physical layer is based on the RSRP value, and the wireless resource management rrc layer of Xiang Suoshu UE sends synchronizing indication or step-out instruction；Determine son
Unit indicates determine whether Radio Link loses the UE for the rrc layer based on the synchronizing indication received and step-out
It loses；
Wherein, the transmission sub-unit, comprising: the first computing module, for the physical layer 100ms synchronization time window
It is interior, calculate the first average value of the RSRP value；First sending module, for being higher than synchronous threshold value in first average value
When, the physical layer sends primary synchronizing indication to the rrc layer；Second computing module, for the physical layer 200ms's
In out of alignment time window, the second average value of the RSRP value is calculated；Second sending module, for being lower than in second average value
When step-out threshold value, the physical layer sends a step-out instruction to the rrc layer；
Wherein, the determining subelement, comprising: starting module, for rrc layer starting T310 timer and counter；
Wherein, when the T310 timer is run, the rrc layer often receives a synchronizing indication from the physical layer, then the meter
Number device adds 1, and the rrc layer often receives a step-out instruction, the then counter O reset from the physical layer；First determines mould
Block, for referring to if the rrc layer receives continuous N311 and synchronize from the physical layer in T310 timer operation
Show, it is determined that the UE wireless link recovery；Second determining module is used in the T310 timer expiry, if the RRC
Layer does not receive continuous N311 synchronizing indication from the physical layer, it is determined that the UE Radio Link Failure；
Judging unit judges whether the UE meets a preset condition if being used for the UE Radio Link Failure；The judgement
Unit, comprising: the first detection sub-unit, for detecting whether the UE is in coverage enhancement state；Second detection sub-unit is used
If being in the coverage enhancement state in the UE, detect whether the UE is in enhancing highest level state；Judgement is single
Member is based on presently described RSRP value if being not at the enhancing highest level state for the UE, and judgement is covered by being promoted
Can lid enhancing rank restore radio link quality；First determines subelement, if for can be extensive by promoting coverage enhancement rank
Multiple radio link quality, it is determined that the UE meets the preset condition；
Lift unit promotes coverage enhancement rank if meeting the preset condition for the UE, to realize Radio Link
The recovery of failure.
6. user equipment as claimed in claim 5, which is characterized in that the judging unit, further includes:
Second determines subelement, if being in the enhancing highest level state for the UE, it is determined that the UE is unsatisfactory for institute
State preset condition.
7. user equipment as claimed in claim 5, which is characterized in that the judging unit, further includes:
Third determines subelement, if for that can not restore radio link quality by promoting coverage enhancement rank, it is determined that described
UE is unsatisfactory for the preset condition.
8. user equipment as claimed in claim 5, which is characterized in that the user equipment, further includes:
Into unit, if being unsatisfactory for the preset condition for the UE, connection reconstruction process is entered by rrc layer, thus
Realize the recovery of Radio Link Failure.
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| CN113873659A (en) | 2017-03-24 | 2021-12-31 | 中兴通讯股份有限公司 | Processing and method for beam recovery, base station and terminal |
| CN113329486B (en) * | 2018-02-09 | 2022-11-11 | 大唐移动通信设备有限公司 | Method, device and equipment for managing threshold pair change |
| CN110351742A (en) * | 2018-04-04 | 2019-10-18 | 大唐移动通信设备有限公司 | A kind of method for transmitting uplink data and mobile access equipment |
| CN108712786B (en) * | 2018-04-12 | 2020-04-21 | 北京邮电大学 | Method and system for recovering radio link failure |
| WO2020010553A1 (en) * | 2018-07-11 | 2020-01-16 | Oppo广东移动通信有限公司 | Method for monitoring radio link and terminal device |
| CN112332988B (en) * | 2021-01-06 | 2021-03-16 | 成都信息工程大学 | Agile quantum privacy query method based on anti-rotation noise |
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