CN105578520B - A kind of cell switching processing system and method and mobile terminal - Google Patents
A kind of cell switching processing system and method and mobile terminal Download PDFInfo
- Publication number
- CN105578520B CN105578520B CN201410525659.9A CN201410525659A CN105578520B CN 105578520 B CN105578520 B CN 105578520B CN 201410525659 A CN201410525659 A CN 201410525659A CN 105578520 B CN105578520 B CN 105578520B
- Authority
- CN
- China
- Prior art keywords
- cell
- assessment
- power control
- mobile terminal
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of cell switching processing system and method and mobile terminals, belong to cell handoff technique field；System includes the first assessment unit；Second assessment unit and processing unit；Method includes: the TPC assessment that the first assessment unit carries out current service cell first；If TPC1 is UP, the practical TPC3 sent of uplink is directly set equal to TPC1；If TPC1 is DOWN；Then the TPC of Target cell is assessed, and the practical TPC3 sent of uplink is set equal to TPC2.For different cell handover triggering conditions, different deterministic processes is inserted into evaluation process, so that TPC assessment is more acurrate.The beneficial effect of above-mentioned technical proposal is: the Pre-Evaluation by carrying out transmitting power control to current service cell and Target cell, improve the poor problem of the initial assessment of TPC after being switched to Target cell, it avoids carrying out caused abnormal call drop or reduced performance in a period of time after cell switching, improves the stability and service quality of link switching.
Description
Technical field
The present invention relates to cell handoff technique field more particularly to a kind of cell switching processing system and method and movements
Terminal.
Background technique
In the prior art, when triggering certain conditions, mobile terminal can be from current service cell to other Target cells
It switches over, here it is the cell switch process of mobile terminal.Triggering mobile terminal cell switch process condition may include
Network-side monitor mobile terminal uplink receiving level quality or mobile terminal itself monitoring down-link performance and from
Peripheral cell (in same activation collection) received signal intensity etc..Accordingly, the cell switching of mobile terminal, which can be divided into, is based on
The switching of power budget, based on receiving the switching of level, the switching based on the quality of reception, the switching based on distance and based on words
The switching etc. of business amount.
Mobile terminal cell switch process in the prior art usually only carries out transmitting power control in current service cell
(Transmission Power Control, TPC), assesses the TPC of current service cell, and simultaneously when switching to Target cell
It is not directed to the TPC evaluation process of Target cell accordingly, therefore causes the TPC initial assessment of Target cell poor, it may
The problems such as causing call drop or unsmooth route influences the speech quality of mobile terminal.
Summary of the invention
According to problems of the prior art, a kind of cell switching processing system and method and mobile terminal are now provided
Technical solution, it is intended to solve to be switched in the prior art and be led since initial transmitting power control assessment is poor after Target cell
The abnormal call drop of cause synchronizes unsmooth problem；
Above-mentioned technical proposal specifically includes:
A kind of cell switching processing system is suitable for mobile terminal；Wherein, comprising:
First assessment unit, for the transmitting power control quality and corresponding transimission power according to current service cell
The transmission power control command that control error rate assessment needs uplink to send, and export corresponding first assessment result；
Second assessment unit connects first assessment unit, for needing uplink according to first assessment unit
According to the current transmitting power control error rate and institute when the transmission power control command sent is assessed as declining
State the transmission function that the transmitting power control quality evaluation for the Target cell that mobile terminal will be switched to needs uplink to send
Rate control command, and export corresponding second assessment result；
Processing unit is separately connected first assessment unit and second assessment unit, and uplink is being needed to send
When the transmission power control command is assessed as decline, the processing unit is needed according to first assessment result setting
The transmission power control command that row is sent, or
The processing unit is ordered according to the transmitting power control that second assessment result setting needs uplink to send
It enables.
Preferably, the cell switching processing system, wherein further include:
First judging unit is connected between first assessment unit and second assessment unit, and described in connection
Processing unit, first judging unit is used for according to first assessment result, in the transmission function for needing uplink to send
Rate control command be assessed as judging when decline the mobile terminal currently whether during will carry out cell switching,
And export corresponding first judging result；
Second judgment unit is connected between first assessment unit and second assessment unit, and described in connection
Processing unit, the second judgment unit is used for according to first assessment result, in the transmission function for needing uplink to send
Rate control command is assessed as judging whether current channel quality is lower than a preset threshold value when decline, and exports corresponding
Second judging result；
Second assessment unit according to first judging result, the mobile terminal be currently at will carry out it is small
The transmission power control command for needing uplink to send is assessed when during area's switching, or
Second assessment unit is lower than the thresholding according to second judging result, in the current channel quality
The transmission power control command for needing uplink to send is assessed when value.
Preferably, the cell switching processing system, wherein further include:
Trigger unit is separately connected first judging unit and the second judgment unit；
The trigger unit is for starting described first after the mobile terminal receives corresponding cell re-configuration message
Judging unit, or
The trigger unit is used to detect that 1D occurs for the non-current service cell in activation collection in the mobile terminal
Start the second judgment unit after event.
Preferably, the cell switching processing system, wherein
The mobile terminal was the first moment at the time of receiving corresponding cell re-configuration message；
The mobile terminal was the second moment according at the time of the cell re-configuration message activation cell handover operations；
The trigger unit is by detecting whether current timing node is located at first moment and second moment
Between judge the mobile terminal currently whether during will carry out cell switching.
Preferably, cell switching processing system, wherein be suitable for WCDMA communication system.
Preferably, the cell switching processing system, wherein suitable for the mobile terminal switch to HSPA connection mode and
FDPCH connection mode.
A kind of cell switching handling method is suitable for mobile terminal；Wherein, it specifically includes:
Step S1, cell switching will be carried out by detecting；
Step S2, according to the transmitting power control quality and corresponding transimission power of the correspondence current service cell received
The transmission power control command that control error rate assessment needs uplink to send, and export corresponding first assessment result:
If first assessment result indicates that the transmission power control command for needing uplink to send is assessed as rising,
The transmission power control command for then needing uplink to send according to first assessment result setting, then switches into step S5；
If first assessment result indicates that the transmission power control command for needing uplink to send is assessed as declining,
Then go to step S3；
Step S3, according to current transmitting power control error rate and to the transmission in requisition for the Target cell switched to
The transmission power control command that power control quality evaluation needs uplink to send, and export corresponding second assessment result；
Step S4, the transmission power control command for needing uplink to send according to second assessment result setting；
Step S5 sends the transmission power control command being provided with, with backed off after random.
Preferably, cell switching handling method, wherein in the step S1, the mobile terminal is received accordingly
Cell re-configuration message, then detection will carry out cell switching；In the step S2, obtain needing described in uplink transmission in assessment
When transmission power control command is decline, following step is first carried out:
Whether step S21a judges the mobile terminal currently during will carry out cell switching:
If the mobile terminal is not currently in during will carrying out cell switching, tied according to first assessment
The transmission power control command that fruit setting needs uplink to send, then switches into step S5；
If the mobile terminal is currently at during will carrying out cell switching, the step S3 is gone to.
Preferably, the cell switching handling method, wherein
As the first moment at the time of the mobile terminal is received the cell re-configuration message；
Using the mobile terminal according at the time of the cell re-configuration message activation cell handover operations as the second moment；
In the step S21a, if current timing node is located at first moment between second moment,
During judging that the mobile terminal is currently at and will carry out cell switching；
If current timing node was located at except first moment to second moment, the mobile terminal is judged
It is not currently in during will carrying out cell switching.
Preferably, cell switching handling method, wherein in the step S1, the mobile terminal detects activation collection
1D event occurs for the interior non-current service cell, then detection will carry out cell switching；
It is first when assessment obtains the transmission power control command for needing uplink to send to decline in the step S2
First carry out following step:
Step S21b, judges whether current channel quality is lower than a preset threshold value:
If the channel quality is not less than the threshold value, uplink is needed to send according to first assessment result setting
The transmission power control command, then switch into step S5；
If the channel quality is lower than the threshold value, the step S3 is gone to.
Preferably, cell switching handling method, wherein be suitable for WCDMA communication system.
Preferably, cell switching handling method, wherein before executing the step S1, the mobile terminal is cut first
Shift to HSPA connection mode and FDPCH connection mode.
A kind of mobile terminal, wherein including above-mentioned cell switching processing system.
A kind of mobile terminal, wherein use above-mentioned cell switching handling method.
The beneficial effect of above-mentioned technical proposal is: by carrying out to current service cell and the Target cell that will be switched to
The Pre-Evaluation of transmitting power control improves the poor problem of the initial assessment of transmitting power control after being switched to Target cell, keeps away
Exempt to carry out caused abnormal call drop or reduced performance in a period of time after cell switching, improve link switching stability and
Service quality.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of cell switching processing system in preferred embodiment of the invention；
Fig. 2-4 is a kind of flow diagram of cell switching handling method in preferred embodiment of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art without creative labor it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be further explained below with reference to the attached drawings and specific examples, but not as the limitation of the invention.
In the prior art, (such as system is received when mobile terminal realizes cell switching according to certain conditions of triggering
The cell re-configuration message of transmission, or detection activation concentrate other cells that 1D event etc. occurs), it will do it cell switching.It is right
For current serving cell, mobile terminal can carry out TPC assessment according to the communication conditions of network, and uplink is sent accordingly
Assessment result, network carry out power control according to the result that TPC is assessed, so that the speech quality of mobile terminal keeps steady
It is fixed.
But for the Target cell of switching, in the prior art, mobile terminal is carried out not according to the Target cell
TPC assessment, may be poor so as to cause the initial TPC assessment of Target cell, and then synchronizes unsmooth (out ofsync)
Situation, may result in mobile terminal exception call drop or in a period of time mobile terminal performance decline the problems such as (due to
Synchronize unsmooth, requirement closing uplink power in existing protocol, so as to cause performance to decline).
Based on above-mentioned problems of the prior art, as shown in Figure 1, providing one kind in preferred embodiment of the invention
Cell switching processing system, specifically includes:
First assessment unit 1.In preferred embodiment of the invention, the first assessment unit 1 is used for according to mobile terminal institute
Transmitting power control quality corresponding to the current service cell at place (TPC mass) and transmitting power control error rate (TPC
Target errorrate, TPC error rate) need the transmission power control command (TPC_CMD) that sends to comment the uplink
Estimate, i.e., assessment uplink needs to send the TPC_CMD for rising (UP) or declining (DOWN).
In preferred embodiment of the invention, the first assessment unit 1 is tied according to corresponding first assessment of above-mentioned assessment output
Fruit.In preferred embodiment of the invention, above-mentioned first assessment result is used to indicate that the current uplink of mobile terminal to be needed to net
The TPC_CMD of network transmission UP or DOWN.In preferred embodiment of the invention, by the first assessment unit 1 by assessment output
The first assessment result be denoted as TPC1.
In preferred embodiment of the invention, the TPC that the first assessment unit 1 is done is evaluated as to current service cell progress
TPC assessment.
In preferred embodiment of the invention, in above-mentioned cell switching processing system further include:
Second assessment unit 2 connects above-mentioned first assessment unit 1.In preferred embodiment of the invention, the second assessment is single
Member 2 carries out further evaluation according to above-mentioned first assessment result.Specifically, in preferred embodiment of the invention, the second assessment is single
Member 2 shows that current uplink needs the TPC_CMD sent to network to be according to above-mentioned first assessment result, in the first assessment result
Corresponding second assessment is carried out when DOWN (when TPC1 is DOWN): according to the TPC error rate being currently received, and will be cut
The TPC mass of the Target cell shifted to needs the TPC_CMD sent to assess current uplink.Preferable reality of the invention
It applies in example, the second assessment unit 2 exports corresponding second assessment result according to assessment.Further, preferable reality of the invention
It applies in example, second assessment result of second assessment unit 2 by assessment output is designated as TPC2.
In preferred embodiment of the invention, the TPC that the first assessment unit 1 is done is evaluated as small to the target that will be switched to
The TPC assessment that area carries out.
In preferred embodiment of the invention, the TPC error rate of above-mentioned second assessment unit, 2 basis being currently received,
The TPC error rate of the correspondence Target cell of completion can be pre-configured with for system, or the TPC mistake of corresponding current area
Rate (when system is previously not configured).Therefore, in preferred embodiment of the invention, the second assessment unit 2 assessed according to
According to being current TPC error rate.
In preferred embodiment of the invention, in above-mentioned cell switching processing system further include:
Processing unit 3 is separately connected above-mentioned first assessment unit 1 and above-mentioned second assessment unit 2.Of the invention is preferable
In embodiment, the first assessment result that processing unit 3 is exported according to above-mentioned first assessment unit 1, or commented according to above-mentioned second
The second assessment result for estimating the output of unit 2 carries out corresponding position to the TPC_CMD (being hereinafter denoted as TPC3) that current uplink is sent
Reason.Specifically:
In preferred embodiment of the invention, when the first assessment unit 1 indicates that the TPC1 for currently needing uplink to send is UP
When, then current TPC3 is directly set equal to TPC1 by processing unit 3, i.e., current TPC3 is set as UP, indicates current
The TPC_CMD that uplink is sent to network is UP.
In preferred embodiment of the invention, when the first assessment unit 1 indicates that the TPC1 for currently needing uplink to send is
When DOWN, then the second assessment is triggered.Second assessment unit 2 assesses the TPC_CMD for currently needing uplink to send, and exports
Corresponding TPC2.Then current uplink is set equal to by processing unit 3 according to the second assessment result to the TPC3 that network is sent
TPC2 sets the TPC_CMD that current uplink is sent to network according to the second assessment result.
In preferred embodiment of the invention, in above-mentioned cell switching processing system further include:
First judging unit 4 is connected between the first assessment unit 1 and the second assessment unit 2.Preferable reality of the invention
It applies in example, the first judging unit 4 receives the first assessment result that above-mentioned first assessment unit 1 exports, and is tied according to the first assessment
Fruit carries out subsequent judgement when TPC1 is DOWN:
Judge that mobile terminal currently whether during will carry out cell switching, and exports corresponding first judgement
As a result.
In preferred embodiment of the invention, carried out in mobile terminal because receiving the cell re-configuration message that network issues
In the case that cell switches, the first moment t1 is denoted as at the time of mobile terminal is received cell re-configuration message, by mobile terminal
It is denoted as the second moment t2 at the time of starting to carry out cell switching according to what cell re-configuration message determined, then current timing node t
Positioned at the first moment between the second moment, i.e. when t1≤t≤t2, it is believed that cell will be carried out by being in t moment mobile terminal
During switching.Therefore, whether the first judging unit 4 is according to above-mentioned deterministic process, judge mobile terminal currently in will
During carrying out cell switching, and export corresponding first judging result.
In preferred embodiment of the invention, the second assessment unit 2 is worked as according to above-mentioned first judging result in mobile terminal
It is preceding to carry out corresponding further evaluation in (i.e. t1≤t≤t2) when carry out in cell switch process, that is, carry out assessment TPC2
Process, and export corresponding second assessment result.
In preferred embodiment of the invention, above-mentioned first judging unit 4 is also connected with above-mentioned processing unit 3.Of the invention
In preferred embodiment, when the first judging result of the first judging unit 4 output is that mobile terminal is not currently in and will carry out
When during cell switching (t < t1 or t > t2), TPC3 is set equal to by processing unit 3 according to the first judging result
TPC1 sets corresponding TPC3 according to the first assessment result of current the first assessment unit 1 output.
In preferred embodiment of the invention, in above-mentioned cell switching processing system further include:
Second judgment unit 5 is connected between the first assessment unit 1 and the second assessment unit 2.Preferable reality of the invention
It applies in example, in the case where mobile terminal itself detects that 1D event occurs for the non-service cell in current Active Set, second sentences
Disconnected unit 5 judges whether current channel quality is lower than a threshold value, and exports corresponding second judging result.
In preferred embodiment of the invention, the letter current according to current TPC Mass Calculation first of second judgment unit 5
Road quality Q 1, and channel quality Q1 is compared with a preset threshold value Q0, export corresponding second judging result.
In preferred embodiment of the invention, the current channel quality Q1 of mobile terminal can pass through the sides such as measuring and calculating signal-to-noise ratio
Formula is calculated, and in other words, channel quality Q1 described in technical solution of the present invention can be indicated with various suitable modes,
Threshold value Q0 can also be indicated with corresponding suitable mode.
In preferred embodiment of the invention, the setting of above-mentioned threshold value Q0 is it is required that Q0 is greater than mobile terminal and access
The step-out thresholding Q of cellout；In preferred embodiment of the invention, in order to guarantee better channel quality, above-mentioned threshold value Q0
It can be further arranged to be greater than the synchronous thresholding Q of mobile terminal with access cellin。
In preferred embodiment of the invention, the second assessment unit 2 is worked as according to above-mentioned second judging result in mobile terminal
Start corresponding second assessment when preceding channel quality Q1 < Q0, i.e. the assessment TPC_CMD that needs uplink to send, and output phase is answered
The second assessment result, that is, export corresponding TPC2.
In preferred embodiment of the invention, second judgment unit 5 is also connected with above-mentioned processing unit 3.Of the invention is preferable
Embodiment in, when the second judging result that second judgment unit 5 exports indicates current channel quality Q1 >=Q0, processing is single
The TPC3 that uplink is sent is set equal to TPC1 by member 3.
In preferred embodiment of the invention, in above-mentioned cell switching processing system further include:
Trigger unit 6 is separately connected above-mentioned first judging unit 4 and second judgment unit 5.Preferable implementation of the invention
In example, mobile terminal can be with:
1) the message initiated cell handover operations of the cell re-configuration issued according to current network, specifically, the cell weight issued
With including when mobile terminal can be in which Target cell carrying out cell switching, for example, mobile terminal can be in message
Some Target cell of non-present serving cell is concentrated to carry out cell switching to activation after 100 frames.
2) concentrate some other cell of non-present serving cell that 1D occurs according to the activation that mobile terminal itself detects
Event and actively carry out cell switching.So-called 1D event refers to that the best cell of current demand signal is changed in simple terms,
In other words, current service cell has not been the best cell of signal.Therefore, in current Active Set non-service cell other
After 1D event occurs for cell, mobile terminal needs to be switched to the best cell of current demand signal, i.e., can generate cell handover operations, and
The Target cell that some cell in the activation collection of 1D event as needs to switch to occurs.
So-called activation collection, refers to that network is already allocated to the set of the cell that can establish connection of mobile terminal, wherein
Including current service cell.
Therefore, in preferred embodiment of the invention, when mobile terminal receives the cell re-configuration message that network issues,
Trigger unit 6 starts above-mentioned first judging unit 4, i.e., entire treatment process is by the first assessment unit 1, the first judging unit 4,
Two assessment units 2 and processing unit 3 execute；
When mobile terminal itself detects that 1D event occurs for other cells in current Active Set in addition to current service cell
Afterwards, trigger unit 6 starts above-mentioned second judgment unit 5, i.e., entire treatment process is by the first assessment unit 1, second judgment unit
5, the second assessment unit 2 and processing unit 3 execute.
In conclusion technical solution of the present invention may include:
Cell switching will be carried out according to different triggering decisions first, before carrying out cell switching, execute the present invention
Technical solution in the treatment process recorded.Mobile terminal selects different treatment processes according to different trigger conditions:
1) the cell re-configuration message issued is received in mobile terminal and determine to cut in the preset cell that sometime carries out
When changing, mobile terminal assesses needs according to the corresponding TPC mass in current service cell and TPC error rate first before the switch
The TPC_CMD (i.e. output assessment result TPC1) that uplink is sent, and according to TPC1 judge whether to need to carry out next step judgement (on
The TPC error rate for stating corresponding current service cell can be by mobile terminal acquisition when receiving cell re-configuration message)；
When TPC1 is UP, i.e., when currently needing to promote transmission power, do not need to carry out TPC assessment to Target cell again,
And the TPC3 for carrying out uplink transmission directly can be set as TPC1 (being set as UP)；When TPC1 is DOWN, i.e., currently need
When reducing transmission power, next step judgement is carried out:
First judging unit judge current mobile terminal whether be in will carry out cell switching during (whether be t1
≤t≤t2)；If executing further evaluation during it will carry out cell switching；It is cut if cell will be carried out by being not at
During changing, then TPC3 is directly set equal to TPC1；
Subsequent second assessment includes: according to the corresponding TPC mass of Target cell and TPC error rate that will be switched to
TPC_CMD (the i.e. output assessment result that (the informing when system of being similarly issues cell re-configuration message) assessment wants uplink to send
TPC2), and by TPC3 it is set equal to TPC2.
Finally, uplink sends the TPC3 by finally setting.
2) it when mobile terminal itself detects activation and other cells of non-present serving cell is concentrated to have generation 1D event, opens
Dynamic cell switch process, and first according to the corresponding TPC mass in current service cell and TPC error rate before carrying out cell switching
The TPC_CMD (i.e. output assessment result TPC1) that assessment needs uplink to send, and according to TPC1 judge whether to need to carry out next
Step judgement；
The TPC3 for carrying out uplink transmission is directly set as TPC1 (being set as UP) when TPC1 is UP；It is in TPC1
When DOWN, next step judgement is carried out:
Channel quality Q1 current according to the TPC Mass Calculation received first, and it is preset to judge whether Q1 is lower than one
TPC3, if Q1 >=Q0, is directly set equal to TPC1 (TPC3 at this time if Q1 < Q0, executes further evaluation by threshold value Q0
It is set to DOWN)；
The further evaluation of execution include: according to be currently received TPC error rate (can be pre-configured with and be informed by system,
Be also possible to the corresponding TPC error rate in current service cell) and the TPC mass of Target cell that will switch to of correspondence comment
Estimate the TPC_CMD (i.e. output assessment result TPC2) for needing uplink to send, and the practical TPC3 sent of uplink is set equal to
TPC2。
Finally, uplink sends the TPC3 by finally setting.
Therefore, goal of the invention of the invention is, before carrying out cell switching, respectively in advance to current service cell and
The TPC_CMD word of Target cell is assessed, and is determined the practical TPC_CMD word sent of uplink in conjunction with assessment result, be can be avoided
In the prior art because be switched to caused by only carrying out TPC assessment to current service cell after Target cell generate synchronize it is unsmooth and
TPC initial assessment is poor so that the problems such as call drop is serious, to promote the mobile terminal call matter carried out in cell switch process
Amount.
In preferred embodiment of the invention, above-mentioned all treatment processes are carried out before cell switching, i.e., to cell
Switching carries out presynchronization, and setting for the TPC_CMD word that corresponding TPC is assessed and uplink is sent is got out before cell switching
It sets.
In preferred embodiment of the invention, above-mentioned cell switching processing system is suitable for WCDMA communication system.
In preferred embodiment of the invention, above-mentioned cell switching processing system is suitable for mobile terminal and switches to HSPA
(High-Speed PacketAccess, high-speed packet access) connection mode and FDPCH (Fractional Dedicated
Physical Channel, following special physical channel) connection mode.
In preferred embodiment of the invention, as shown in Fig. 2, being based on above-mentioned cell switching processing system, provide a kind of small
Area's switching handling method, specifically includes:
Step S1, cell switching will be carried out by detecting；
It is given at progress cell switching under two kinds of trigger conditions in technical solution of the present invention, and is described below.
In preferred embodiment of the invention, before executing step S1, guarantee mobile terminal first has been in HSPA
Under connection mode and FDPCH connection mode.
Step S2, according to the transmitting power control quality and corresponding transimission power of the correspondence current service cell received
The transmission power control command that control error rate assessment needs uplink to send, and export corresponding first assessment result:
If the first assessment result indicates that the transmission power control command for needing uplink to send is assessed as rising, according to the
The transmission power control command that the setting of one assessment result needs uplink to send, then switches into step S5；
If the first assessment result result indicates that the transmission power control command for needing uplink to send is assessed as declining, turn
To step S3；
In preferred embodiment of the invention, in above-mentioned steps S2, if current the first assessment result expression needs uplink
It when the TPC_CMD (the assessment result TPC1 exported) of transmission is UP, then no longer needs to carry out further evaluation, directly by uplink reality
The TPC_CMD (i.e. TPC3) of transmission is set equal to TPC1, and is sent；
If the first current assessment result indicates that the TPC1 for needing uplink to send is DOWN, need to carry out subsequent comment
Estimate, i.e., TPC assessment is carried out to the Target cell that needs switch to.
Step S3, according to current transmitting power control error rate and to the transmission in requisition for the Target cell switched to
The transmission power control command that power control quality evaluation needs uplink to send, and export corresponding second assessment result；
In preferred embodiment of the invention, the second assessment of subsequent execution is for the Target cell for needing to switch to, i.e.,
According to the TPC quality evaluation TPC command (TPC_CMD) of current TPC error rate and corresponding Target cell, and export corresponding
TPC2。
Step S4, the transmission power control command for needing uplink to send according to the setting of the second assessment result；
In preferred embodiment of the invention, according to the second assessment result, the practical TPC3 sent of uplink can be set as
Equal to TPC2.
Step S5 sends the transmission power control command being provided with, with backed off after random.
In preferred embodiment of the invention, as shown in figure 3, receiving the cell re-configuration message that issues simultaneously in mobile terminal
When carrying out cell switching, in above-mentioned steps S2, the transmission power control command for needing uplink to send is obtained as decline in assessment
(DOWN) when, following step is first carried out:
Whether step S21a judges mobile terminal currently during will carry out cell switching:
If mobile terminal is not currently in during will carrying out cell switching, need are arranged according to the first assessment result
The transmission power control command for wanting uplink to send, then switches into step S5；
If mobile terminal is currently at during will carrying out cell switching, step S3 is gone to.
In preferred embodiment of the invention, if judging, TPC1 for DOWN, is assessed in execution second (i.e. to Target cell
Carry out TPC assessment) before, first determine whether mobile terminal currently whether during will carry out cell switching.The present invention
Preferred embodiment in, as described above, the first moment t1 is denoted as at the time of mobile terminal is received cell re-configuration message,
And be denoted as the second moment t2 at the time of mobile terminal is executed cell handover operations according to the setting of cell re-configuration message, then currently
Timing node t be between the first moment t1 and the second moment t2 when (t1≤t≤t2) indicate current mobile terminal be in
During carrying out cell switching.
In preferred embodiment of the invention, when mobile terminal, which is in, to carry out during cell switching, directly
Step S3 is gone to, i.e., TPC assessment is carried out to Target cell；
In preferred embodiment of the invention, when mobile terminal, which is not in, to carry out during cell switching, directly
It connects and TPC3 is set equal to TPC1, and go to step S5.
In preferred embodiment of the invention, in these cases, i.e., mobile terminal receives cell re-configuration message and opens
When beginning to carry out cell switching, in above-mentioned steps S3, the current transmitting power control error rate (TPC error rate) received is pair
Answer the TPC error rate of current service cell.
In preferred embodiment of the invention, as shown in figure 4, the non-present clothes in mobile terminal itself detects that activation collects
After 1D event occurs for other cells for cell of being engaged in, start cell switch process.In these cases, it in step S2, is assessing
When obtaining the transmission power control command for needing uplink to send to decline, following step is first carried out:
Step S21b, judges whether current channel quality is lower than a preset threshold value:
If channel quality is not less than threshold value, the transimission power control of uplink transmission is needed according to the setting of the first assessment result
System order, then switches into step S5；
If channel quality is lower than threshold value, step S3 is gone to.
In preferred embodiment of the invention, current channel quality Q1 is calculated according to the TPC mass received first.
In preferred embodiment of the invention, if current channel quality Q1 is lower than a preset threshold value Q0, table
Show that channel quality is poor at this time, directly goes to step S3 and carry out the subsequent assessment to Target cell；
If current channel quality Q1 is not less than threshold value Q0, indicate that present channel quality is normal, then directly by uplink
The TPC3 actually sent is set equal to TPC1.
In preferred embodiment of the invention, under above situation, i.e., mobile terminal itself detects non-in activation collection work as
In the case that other cells of preceding serving cell occur 1D event and start cell switch process, in above-mentioned steps S3, acquisition
Current TPC error rate can be the pre-configured TPC error rate of system, i.e., the TPC error rate of known Target cell, and
It, i.e., can also be using current small when TPC error rate is unknown when system is not pre-configured with and informs corresponding TPC error rate
The TPC error rate in area carries out corresponding TPC assessment.
In preferred embodiment of the invention, TPC mass can be calculated by detection signal-to-noise ratio obtains (corresponding different community
TPC mass obtained by detecting corresponding signal-to-noise ratio)；
In preferred embodiment of the invention, channel quality Q1 again may be by detection signal-to-noise ratio and calculate acquisition.
In preferred embodiment of the invention, above-mentioned cell switching handling method is suitable for WCDMA communication system.
In preferred embodiment of the invention, a kind of mobile terminal is also provided, including above-mentioned cell hand-off process system
System.
In preferred embodiment of the invention, a kind of mobile terminal is also provided, wherein using above-mentioned cell hand-off process side
Method.
The foregoing is merely preferred embodiments of the present invention, are not intended to limit embodiments of the present invention and protection model
It encloses, to those skilled in the art, should can appreciate that all with made by description of the invention and diagramatic content
Equivalent replacement and obviously change obtained scheme, should all be included within the scope of the present invention.
Claims (12)
1. a kind of cell switching processing system is suitable for mobile terminal；It is characterised by comprising:
First assessment unit, for according to current service cell transmitting power control quality and corresponding transmitting power control
The transmission power control command that error rate assessment needs uplink to send, and export corresponding first assessment result；
Second assessment unit connects first assessment unit, for needing uplink to send according to first assessment unit
The transmission power control command when being assessed as decline according to current the transmitting power control error rate and the shifting
The transimission power control that the transmitting power control quality evaluation for the Target cell that dynamic terminal will be switched to needs uplink to send
System order, and export corresponding second assessment result；
Processing unit is separately connected first assessment unit and second assessment unit, is needing described in uplink transmission
When transmission power control command is assessed as decline, the processing unit needs uplink to send out according to first assessment result setting
The transmission power control command sent, or
The transmission power control command that the processing unit needs uplink to send according to second assessment result setting；
Further include:
First judging unit is connected between first assessment unit and second assessment unit, and connects the processing
Unit, first judging unit is used for according to first assessment result, in the transimission power control for needing uplink to send
System order be assessed as judging when decline the mobile terminal currently whether during will carry out cell switching, and it is defeated
Corresponding first judging result out；
Second judgment unit is connected between first assessment unit and second assessment unit, and connects the processing
Unit, the second judgment unit is used for according to first assessment result, in the transimission power control for needing uplink to send
System order is assessed as judging whether current channel quality is lower than a preset threshold value when decline, and exports corresponding second
Judging result；
According to first judging result, cell will be carried out and cut second assessment unit by being currently in the mobile terminal
The transmission power control command for needing uplink to send is assessed when during changing, or
Second assessment unit is according to second judging result, when the current channel quality is lower than the threshold value
The transmission power control command for needing uplink to send is assessed.
2. cell switching processing system as described in claim 1, which is characterized in that further include:
Trigger unit is separately connected first judging unit and the second judgment unit；
The trigger unit after the mobile terminal receives corresponding cell re-configuration message for starting first judgement
Unit, or
The trigger unit is used to detect that 1D event occurs for the non-current service cell in activation collection in the mobile terminal
After start the second judgment unit.
3. cell switching processing system as claimed in claim 2, which is characterized in that
The mobile terminal was the first moment at the time of receiving corresponding cell re-configuration message；
The mobile terminal was the second moment according at the time of the cell re-configuration message activation cell handover operations；
The trigger unit is by detecting whether current timing node was located between first moment and second moment
Judge the mobile terminal currently whether during will carry out cell switching.
4. cell switching processing system as described in claim 1, which is characterized in that be suitable for WCDMA communication system.
5. cell switching processing system as described in claim 1, which is characterized in that switched to suitable for the mobile terminal
HSPA connection mode and FDPCH connection mode.
6. a kind of cell switching handling method is suitable for mobile terminal；It is characterized in that, specifically including:
Step S1, cell switching will be carried out by detecting；
Step S2, according to the transmitting power control quality of the correspondence current service cell received and corresponding transmitting power control
The transmission power control command that error rate assessment needs uplink to send, and export corresponding first assessment result:
If first assessment result indicates that the transmission power control command for needing uplink to send is assessed as rising, root
According to the transmission power control command that first assessment result setting needs uplink to send, step S5 is then switched into；
If first assessment result indicates that the transmission power control command for needing uplink to send is assessed as declining, turn
To step S3；
Step S3, according to current transmitting power control error rate and to the transimission power in requisition for the Target cell switched to
The transmission power control command that control quality evaluation needs uplink to send, and export corresponding second assessment result；
Step S4, the transmission power control command for needing uplink to send according to second assessment result setting；
Step S5 sends the transmission power control command being provided with, with backed off after random.
7. cell switching handling method as claimed in claim 6, which is characterized in that in the step S1, the mobile terminal
Corresponding cell re-configuration message is received, then detection will carry out cell switching；In the step S2, obtained on needs in assessment
When the transmission power control command that row is sent is decline, following step is first carried out:
Whether step S21a judges the mobile terminal currently during will carry out cell switching:
If the mobile terminal is not currently in during will carrying out cell switching, set according to first assessment result
The transmission power control command for needing uplink to send is set, step S5 is then switched into；
If the mobile terminal is currently at during will carrying out cell switching, the step S3 is gone to.
8. cell switching handling method as claimed in claim 7, which is characterized in that
As the first moment at the time of the mobile terminal is received the cell re-configuration message；
Using the mobile terminal according at the time of the cell re-configuration message activation cell handover operations as the second moment；
In the step S21a, if current timing node is located at first moment between second moment, judge
The mobile terminal is currently at during will carrying out cell switching；
If current timing node was located at except first moment to second moment, judge that the mobile terminal is current
It is not at during will carrying out cell switching.
9. cell switching handling method as claimed in claim 6, which is characterized in that in the step S1, the mobile terminal
Detect that 1D event occurs for the non-current service cell in activation collection, then detection will carry out cell switching；
In the step S2, when assessment obtains the transmission power control command for needing uplink to send to decline, hold first
Row following step:
Step S21b, judges whether current channel quality is lower than a preset threshold value:
If the channel quality is not less than the threshold value, the institute of uplink transmission is needed according to first assessment result setting
Transmission power control command is stated, step S5 is then switched into；
If the channel quality is lower than the threshold value, the step S3 is gone to.
10. cell switching handling method as claimed in claim 6, which is characterized in that be suitable for WCDMA communication system.
11. cell switching handling method as claimed in claim 6, which is characterized in that before executing the step S1, the shifting
Dynamic terminal switches first to HSPA connection mode and FDPCH connection mode.
12. a kind of mobile terminal, which is characterized in that including cell switching processing system such as claimed in any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410525659.9A CN105578520B (en) | 2014-10-08 | 2014-10-08 | A kind of cell switching processing system and method and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410525659.9A CN105578520B (en) | 2014-10-08 | 2014-10-08 | A kind of cell switching processing system and method and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105578520A CN105578520A (en) | 2016-05-11 |
| CN105578520B true CN105578520B (en) | 2019-04-26 |
Family
ID=55888067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410525659.9A Active CN105578520B (en) | 2014-10-08 | 2014-10-08 | A kind of cell switching processing system and method and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105578520B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020164118A1 (en) * | 2019-02-15 | 2020-08-20 | Oppo广东移动通信有限公司 | Method and device for detecting physical downlink control channel, and terminal |
| CN114071555B (en) * | 2020-08-04 | 2023-08-15 | ***通信集团重庆有限公司 | Cell switching evaluation method, device, equipment and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1997237A (en) * | 2003-06-05 | 2007-07-11 | 韩国电子通信研究院 | Mobile communication terminal and mobile communication base station apparatus supporting switching |
| CN101166349A (en) * | 2006-10-19 | 2008-04-23 | 中兴通讯股份有限公司 | System switching method and device |
| CN102264113A (en) * | 2010-05-25 | 2011-11-30 | 鼎桥通信技术有限公司 | Virtual soft switching method in time division-synchronous code division multiple access (TD-SCDMA) system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101681094B1 (en) * | 2010-06-29 | 2016-12-01 | 삼성전자주식회사 | Method and apparatus for controlling transmit power in wireless network |
-
2014
- 2014-10-08 CN CN201410525659.9A patent/CN105578520B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1997237A (en) * | 2003-06-05 | 2007-07-11 | 韩国电子通信研究院 | Mobile communication terminal and mobile communication base station apparatus supporting switching |
| CN101166349A (en) * | 2006-10-19 | 2008-04-23 | 中兴通讯股份有限公司 | System switching method and device |
| CN102264113A (en) * | 2010-05-25 | 2011-11-30 | 鼎桥通信技术有限公司 | Virtual soft switching method in time division-synchronous code division multiple access (TD-SCDMA) system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105578520A (en) | 2016-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8824309B2 (en) | Method and device for judging radio link failure in carrier aggregation technology | |
| KR102520464B1 (en) | Radio link monitoring/radio link failure re-configuration upon bandwidth parts switching | |
| US9820207B2 (en) | Cell reselection method and mobile terminal | |
| CN104823474B (en) | Radio Link Failure report method and user equipment in mobile communications network | |
| CN106537971B (en) | Method and apparatus for controlling latency in determining radio link failure | |
| EP2465296B1 (en) | Generating measurement reports under rapid degradation of radio conditions | |
| EP3648500A1 (en) | Measurements in the case of missing reference signals | |
| US11622329B2 (en) | Methods of UE power saving with multiple receivers | |
| CN108696881A (en) | A kind of connection management method, first network equipment, terminal device and system | |
| EP3148245B1 (en) | Radio link monitoring method and ue | |
| KR20150109387A (en) | Device and method in radio communication system | |
| EP2966928A1 (en) | Method and user equipment for reestablishing rrc connection | |
| CN104581666B (en) | A kind of method and device of the standby switching of mobile terminal SIM card | |
| CN103249112A (en) | User access control method and device, and route | |
| SE523070C2 (en) | A method and apparatus for estimating link quality in a mobile communication network | |
| CN105578520B (en) | A kind of cell switching processing system and method and mobile terminal | |
| HUE033090T2 (en) | User presence driven power saving in time division synchronous code division multiple access | |
| CN112020888A (en) | Link failure processing method and device, terminal equipment and storage medium | |
| CN104469902B (en) | The method and device of RRC connection status between a kind of control UE and network side | |
| US9578613B2 (en) | Method and apparatus for determining clock desynchronization | |
| CN102196519A (en) | Method for triggering cell reselection/switching by mobile terminal | |
| CN109155927A (en) | Method for handover control, controlling terminal and unmanned plane | |
| CN106550434A (en) | The method of mobile terminal and its detection beep-page message | |
| CN103379529B (en) | User equipment and method for recovering wireless link failures | |
| CN104754671B (en) | A kind of different system cell reselecting method, device and network side equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |