CN107872840A - GSM cell synchronous method, device and mobile terminal under LTE+GSM double card LTE packet switches - Google Patents
GSM cell synchronous method, device and mobile terminal under LTE+GSM double card LTE packet switches Download PDFInfo
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- CN107872840A CN107872840A CN201610852992.XA CN201610852992A CN107872840A CN 107872840 A CN107872840 A CN 107872840A CN 201610852992 A CN201610852992 A CN 201610852992A CN 107872840 A CN107872840 A CN 107872840A
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/003—Arrangements to increase tolerance to errors in transmission or reception timing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/02—Arrangements for increasing efficiency of notification or paging channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
Abstract
The present invention provides GSM cell synchronous method, device and mobile terminal under a kind of LTE+GSM double cards LTE packet switches.Methods described includes：The position A in the PCH PCH of the GSM card is chosen, and it is that 4 GSM frames add 1 GSM time slot that current location distance and position A interval is most short, and other task conflicts are not present in the current location first paragraph cell searching task to be carried out；Buffer status BSR=0 is sent to network side, treats to recover BSR after the completion of the task；Judge the first paragraph cell searching task it is most short be that 4 GSM frames add whether find GSM sync bits on 1 GSM time slot position；When the first paragraph cell searching task finds GSM sync bits, synchronous success.The present invention can reduce on the premise of GSM net synchronization capabilities are taken into account and destroy LTE packet numbers, and reducing speed when data service is carried out on LTE influences, and substantially increases terminal network stability.
Description
Technical field
The present invention relates to GSM under mobile communication technology field, more particularly to a kind of LTE+GSM double cards LTE packet switches is small
The synchronous method, device and mobile terminal in area.
Background technology
With mobile phone technique become stronger day by day and people increase for the demand of cell-phone function, LTE+GSM double card patterns
It is used widely in mobile phone market, under LTE+GSM double card patterns, the GSM of LTE cards when LTE progress data services is present
Adjacent area or the synchronous task of GSM card cell, the completion of the synchronous task of these GSM cells need the packet for destroying LTE to complete,
How LTE packets are exchanged service impact it is smaller on the premise of to solve GSM be synchronously the key issue that currently faces.
+ 1 time slot of 12 frame is used to be synchronized for the mode of unit in traditional GSM synchronizations, or newer method
Can also be in units of+1 time slot of single frames.
During the present invention is realized, inventor has found following technical problem in the prior art at least be present：
Influence to LTE packet switch process rates in a manner of in units of+1 time slot of 12 frame is bigger；With single frames+1
Individual time slot is more due to destroying packet number for the mode of unit, while it is larger and too many by several times to destroy process data packet consumption
Easily collision, causes the search cycle to lengthen.
The content of the invention
GSM cell synchronous method, device and mobile terminal under LTE+GSM double cards LTE packet switches provided by the invention, energy
Enough reduced on the premise of GSM net synchronization capabilities are taken into account destroys LTE packet numbers, reduces speed when data service is carried out to LTE
Influence, substantially increase terminal network stability.
In a first aspect, the present invention provides GSM cell synchronous method under a kind of LTE+GSM double cards LTE packet switches, including：
Choose the position A in the PCH PCH of the GSM card, wherein, current location distance and position A at intervals of connecing
Length is received, and most short is that 4 GSM frames add 1 GSM time slot, and the current location first paragraph cell searching to be carried out is appointed
Other task conflicts are not present in business；
Buffer status BSR=0 is sent to network side, treats to recover BSR after the completion of the cell searching task and paging task；
Judge the first paragraph cell searching task it is described reception length it is most short be that 4 GSM frames add 1 GSM time slots position
Put and whether find GSM sync bits；
It is that 4 GSM frames add 1 GSM time slot position when the first paragraph cell searching task is most short in the reception length
On when finding GSM sync bits, synchronous success.
Alternatively, methods described also includes：
It is that 4 GSM frames add 1 GSM time slot position when the first paragraph cell searching task is most short in the reception length
When not finding GSM sync bits, on the basis of the first paragraph cell searching task starting point, in 51n+8 frame and with
One paging task carries out second segment GSM search missions on connected position, judges the second segment GSM search missions in 51n+
Whether the sync bit of the GSM is found on 8 frames and the position being connected with next paging task, wherein, n is search week
Phase, n are natural number；
When the second segment GSM search missions are carried out on 51n+8 frame and the position that is connected with next paging task
Second segment GSM finds the sync bit of the GSM, synchronous success when searching for.
Alternatively, methods described also includes：
When the second segment GSM search missions are carried out on 51n+8 frame and the position that is connected with next paging task
Second segment GSM does not find the sync bit of the GSM when searching for, then using the first paragraph cell searching task starting point as base
Standard, continue the 3rd section of GSM search mission in 51m+4 frame and position without paging conflict, judge that the 3rd section of GSM is searched
Whether rope task finds the sync bit of the GSM on 51m+4 frame and position without paging conflict, wherein, m is search week
Phase, m are natural number；
When the 3rd section of GSM search mission finds the same of the GSM on 51m+4 frame and position without paging conflict
When step is put, synchronization is successful, otherwise synchronization failure.
Second aspect, the present invention provide GSM cell sychronisation under a kind of LTE+GSM double cards LTE packet switches, the dress
Put including：
Unit is chosen, for choosing the position A in the PCH PCH of the GSM card, wherein, current location is apart from position
Put A at intervals of receiving length, and most short is that 4 GSM frames add 1 GSM time slot, and the current location to be carried out first
Other task conflicts are not present in section cell searching task；
Notification unit, buffer status BSR=0 is sent to network side, treat that the cell searching task and paging task are completed
After recover BSR；
First judging unit, for judging whether the first paragraph cell searching task finds on the current location
GSM sync bits, when the cell searching task is finding GSM sync bits on the current location, synchronous success.
Alternatively, described device also includes：
First search unit, for being 4 GSM frames when the first paragraph cell searching task is most short in the reception length
When adding 1 GSM time slot position not find GSM sync bits, on the basis of the first paragraph cell searching task starting point,
Second segment GSM search missions are carried out on 51n+8 frame and the position being connected with next paging task；
Second judging unit, for judging that the second segment GSM search missions are appointed in 51n+8 frame and with next paging
Whether the sync bit of the GSM is found on the connected position of business, wherein, n is the search cycle, and n is natural number, when described second
Section GSM search missions are found when progress second segment GSM is searched on 51n+8 frame and the position that is connected with next paging task
The sync bit of the GSM, synchronous success.
Alternatively, described device also includes：
Second search unit, for when the second segment GSM search missions 51n+8 frame and with next paging task
Carry out not finding the sync bit of the GSM on connected position during second segment GSM search, then searched with the first paragraph cell
On the basis of rope task starting point, continue the 3rd section of GSM search mission in 51m+4 frame and position without paging conflict；
3rd judging unit, for judging the 3rd section of GSM search mission in 51m+4 frame and position without paging conflict
The sync bit for whether finding the GSM is put, wherein, m is the search cycle, and m is natural number, when the 3rd section of GSM is searched for
Task on 51m+4 frame and the position without paging conflict when finding the sync bit of the GSM, and synchronous success is otherwise synchronous
Failure.
The third aspect, the present invention provide a kind of mobile terminal, and the mobile terminal includes above-mentioned LTE+GSM double cards LTE points
Group exchanges lower GSM cell sychronisation.
GSM cell synchronous method, device and movement under LTE+GSM double cards LTE packet switches provided in an embodiment of the present invention
Terminal, the position A in the PCH PCH of the GSM card is chosen, wherein, current location distance and position A's grows at intervals of reception
Degree, and most short is that 4 GSM frames add 1 GSM time slot, and the current location first paragraph cell searching task to be carried out is not
In the presence of other task conflicts；Buffer status BSR=0 is sent to network side, treats that the cell searching task and paging task are completed
After recover BSR；Judge the first paragraph cell searching task it is described reception length it is most short be that 4 GSM frames add 1 GSM time slot
Whether GSM sync bit is found on position；It is 4 GSM when the first paragraph cell searching task is most short in the reception length
Frame adds when finding GSM sync bits on 1 GSM time slot position, synchronous success, otherwise synchronization failure.Compared with prior art, originally
Invention can reduce on the premise of GSM net synchronization capabilities are taken into account and destroy LTE packet numbers, reduce and carry out data service to LTE
When speed influence, substantially increase terminal network stability.
Brief description of the drawings
Fig. 1 is the flow chart of GSM cell synchronous method under one embodiment of the invention LTE+GSM double card LTE packet switches；
Fig. 2 is the multi-frame structure figures of one embodiment of the invention GSM 51；
Fig. 3 is the flow chart of GSM cell synchronous method under another embodiment of the present invention LTE+GSM double card LTE packet switches；
Fig. 4 is the multi-frame cell search process structure charts of another embodiment of the present invention GSM 51；
Fig. 5 is the structural representation of GSM cell sychronisation under one embodiment of the invention LTE+GSM double card LTE packet switches
Figure；
Fig. 6 is that the structure of GSM cell sychronisation under another embodiment of the present invention LTE+GSM double card LTE packet switches is shown
It is intended to.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
Only it is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
The present invention provides GSM cell synchronous method under a kind of LTE+GSM double cards LTE packet switches, as shown in figure 1, described
Method includes：
S11, position A in the PCH PCH of the GSM card is chosen, wherein, current location distance and position A interval
To receive length, and most short is that 4 GSM frames add 1 GSM time slot, and the current location first paragraph cell to be carried out is searched
Other task conflicts are not present in rope task；
Specifically, the search procedure of the current location is carried out in the multi-frame structures of GSM 51,51 multi-frame structure
As shown in Figure 2；
Specifically, when the sectioning search task of GSM card burst generation task and GSM clashes, as long as conflicted
GSM cell search mission section voluntarily adds 51 frames to generate task again, you can continues cell searching task；
S12, to network side send buffer status BSR=0, treat to recover after the completion of the cell searching task and paging task
BSR；
S13, judge the first paragraph cell searching task it is described reception length most it is short be that 4 GSM frames add 1 GSM when
Whether GSM sync bit is found on gap position；
S14, when the first paragraph cell searching task it is described reception length it is most short be that 4 GSM frames add 1 GSM time slot
When GSM sync bits are found on position, synchronous success.
Further, as shown in figure 3, methods described also includes：
S15, when the first paragraph cell searching task it is described reception length it is most short be that 4 GSM frames add 1 GSM time slot
When GSM sync bits are not found in position, on the basis of the first paragraph cell searching task starting point, in 51n+8 frame and
Second segment GSM search missions are carried out on the position being connected with next paging task, judge that the second segment GSM search missions exist
Whether the sync bit of the GSM is found on 51n+8 frame and the position being connected with next paging task, wherein, n is search
Cycle, n are natural number；
Specifically, GSM paging task is present in the PCCH blocks of 51 multi-frame, and GSM paging cycle is generally
51 positive integer times and more than 1；
Such as：As shown in figure 4, it is to page receiving position, the first paragraph that GSM paging cycle, which is 2 × 51, PCCH modules,
Cell searching task before PCCH modules close to position, when the first paragraph cell searching task does not find the GSM's
Sync bit, then second receive after PCCH modules close to position carry out second segment cell searching task；
S16, when the second segment GSM search missions are on 51n+8 frame and the position that is connected with next paging task
Found during second segment GSM search the sync bit of the GSM, synchronous success.
Further, as shown in figure 3, methods described also includes：
S17, when the second segment GSM search missions are on 51n+8 frame and the position that is connected with next paging task
Do not found during second segment GSM search the sync bit of the GSM, then with the first paragraph cell searching task starting point
On the basis of, continue the 3rd section of GSM search mission in 51m+4 frame and position without paging conflict, judge described 3rd section
Whether GSM search missions find the sync bit of the GSM on 51m+4 frame and position without paging conflict, wherein, m is
Search cycle, m are natural number；
S18, find the GSM on 51m+4 frame and position without paging conflict when the 3rd section of GSM search mission
Sync bit when, synchronous success, otherwise synchronization failure.
GSM cell synchronous method under LTE+GSM double cards LTE packet switches provided in an embodiment of the present invention, can take into account
Reduced on the premise of GSM net synchronization capabilities and destroy LTE packet numbers, reducing speed when data service is carried out on LTE influences, significantly
Improve terminal network stability.
The embodiment of the present invention also provides GSM cell sychronisation under a kind of LTE+GSM double cards LTE packet switches, such as Fig. 5 institutes
Show, described device includes：
Unit 11 is chosen, for choosing the position A in the PCH PCH of the GSM card, wherein, current location distance
Position A at intervals of receiving length, and most short is that 4 GSM frames add 1 GSM time slot, and the current location to be carried out the
Other task conflicts are not present in one section of cell searching task；
Notification unit 12, for sending buffer status BSR=0 to network side, treat that the cell searching task and paging are appointed
Recover BSR after the completion of business；
First judging unit 13, for judging whether the first paragraph cell searching task finds on the current location
GSM sync bits, when the cell searching task is finding GSM sync bits on the current location, synchronous success.
Further, as shown in fig. 6, described device also includes：
First search unit 14, for being 4 GSM when the first paragraph cell searching task is most short in the reception length
When frame adds 1 GSM time slot position not find GSM sync bits, on the basis of the first paragraph cell searching task starting point,
Second segment GSM search missions are carried out on 51n+8 frame and the position that is connected with next paging task；
Second judging unit 15, for judge the second segment GSM search missions 51n+8 frame and with next paging
Whether the sync bit of the GSM is found on the connected position of task, wherein, n is the search cycle, and n is natural number, when described the
Two sections of GSM search missions are looked for when carrying out second segment GSM search on 51n+8 frame and the position that is connected with next paging task
To the sync bit of the GSM, synchronous success.
Further, as shown in fig. 6, described device also includes：
Second search unit 16, for when the second segment GSM search missions 51n+8 frame and with it is next paging appoint
Carry out not finding the sync bit of the GSM on the connected position of business during second segment GSM search, then with the first paragraph cell
On the basis of search mission starting point, continue the 3rd section of GSM search mission in 51m+4 frame and position without paging conflict；
3rd judging unit 17, for judging the 3rd section of GSM search mission in 51m+4 frame and without paging conflict
Whether the sync bit of the GSM is found on position, wherein, m is the search cycle, and m is natural number, when the 3rd section of GSM is searched
Rope task on 51m+4 frame and the position without paging conflict when finding the sync bit of the GSM, synchronous success, otherwise together
Step failure.
GSM cell sychronisation under LTE+GSM double cards LTE packet switches provided in an embodiment of the present invention, can take into account
Reduced on the premise of GSM net synchronization capabilities and destroy LTE packet numbers, reducing speed when data service is carried out on LTE influences, significantly
Improve terminal network stability.
The embodiment of the present invention also provides a kind of mobile terminal, and the mobile terminal is grouped including above-mentioned LTE+GSM double cards LTE
Exchange lower GSM cell sychronisation.
One of ordinary skill in the art will appreciate that realize all or part of flow in above-described embodiment method, being can be with
The hardware of correlation is instructed to complete by computer program, described program can be stored in computer read/write memory medium
In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, the change or replacement that can readily occur in, all should
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (7)
1. GSM cell synchronous method under a kind of LTE+GSM double cards LTE packet switches, it is characterised in that LTE cards reside in LTE nets
Network, GSM card reside in GSM network, GSM adjacent areas or the GSM card cell of the LTE cards under the LTE cards packet switch be present
Network Synchronization task, methods described include：
The position A in the PCH PCH of the GSM card is chosen, wherein, current location distance and position A's grows at intervals of reception
Degree, and most short is that 4 GSM frames add 1 GSM time slot, and the current location first paragraph cell searching task to be carried out is not
In the presence of other task conflicts；
Buffer status BSR=0 is sent to network side, treats to recover BSR after the completion of the cell searching task and paging task；
Judge the first paragraph cell searching task it is described reception length it is most short be that 4 GSM frames add on 1 GSM time slot position
Whether GSM sync bit is found；
It is that 4 GSM frames add and looked on 1 GSM time slot position when the first paragraph cell searching task is most short in the reception length
During to GSM sync bits, synchronous success.
2. according to the method for claim 1, it is characterised in that methods described also includes：
It is that 4 GSM frames add 1 GSM time slot position not have when the first paragraph cell searching task is most short in the reception length
When finding GSM sync bits, on the basis of the first paragraph cell searching task starting point, 51n+8 frame and with it is next
Paging task carries out second segment GSM search missions on connected position, judges the second segment GSM search missions at 51n+8
Whether the sync bit of the GSM is found on frame and the position being connected with next paging task, wherein, n is the search cycle, n
For natural number；
When the second segment GSM search missions carry out second on 51n+8 frame and the position that is connected with next paging task
The sync bit of the GSM, synchronous success are found during section GSM search.
3. according to the method for claim 1, it is characterised in that methods described also includes：
When the second segment GSM search missions carry out second on 51n+8 frame and the position that is connected with next paging task
The sync bit of the GSM is not found during section GSM search, then on the basis of the first paragraph cell searching task starting point,
Continue the 3rd section of GSM search mission in 51m+4 frame and position without paging conflict, judge the 3rd section of GSM search
Whether task finds the sync bit of the GSM on 51m+4 frame and position without paging conflict, wherein, m is search week
Phase, m are natural number；
When the 3rd section of GSM search mission finds the sync bit of the GSM on 51m+4 frame and position without paging conflict
When putting, synchronization is successful, otherwise synchronization failure.
4. GSM cell sychronisation under a kind of LTE+GSM double cards LTE packet switches, it is characterised in that LTE cards reside in LTE nets
Network, GSM card reside in GSM network, GSM adjacent areas or the GSM card cell of the LTE cards under the LTE cards packet switch be present
Network Synchronization task, described device include：
Unit is chosen, for choosing the position A in the PCH PCH of the GSM card, wherein, current location distance and position A's
At intervals of reception length, and most short is that 4 GSM frames add 1 GSM time slot, and the current location first paragraph to be carried out is small
Other task conflicts are not present in area searching task；
Notification unit, buffer status BSR=0 is sent to network side, treated extensive after the completion of the cell searching task and paging task
Multiple BSR；
First judging unit, for judging it is same whether the first paragraph cell searching task finds GSM on the current location
Step is put, when the cell searching task is finding GSM sync bits on the current location, synchronous success.
5. device according to claim 4, it is characterised in that described device also includes：
First search unit, for being that 4 GSM frames add 1 when the first paragraph cell searching task is most short in the reception length
When individual GSM time slot positions do not find GSM sync bits, on the basis of the first paragraph cell searching task starting point, in 51n
Second segment GSM search missions are carried out on+8 frames and the position being connected with next paging task；
Second judging unit, for judge the second segment GSM search missions 51n+8 frame and with next paging task phase
Whether the sync bit of the GSM is found on position even, wherein, n is the search cycle, and n is natural number, when the second segment
GSM search missions find institute when carrying out second segment GSM search on 51n+8 frame and the position that is connected with next paging task
State GSM sync bit, synchronous success.
6. device according to claim 4, it is characterised in that described device also includes：
Second search unit, for being connected when the second segment GSM search missions in 51n+8 frame and with next paging task
Position on do not found during second segment GSM search the sync bit of the GSM, then appointed with the first paragraph cell searching
On the basis of starting point of being engaged in, continue the 3rd section of GSM search mission in 51m+4 frame and position without paging conflict；
3rd judging unit, for judging the 3rd section of GSM search mission in 51m+4 frame and position without paging conflict
Whether the sync bit of the GSM is found, wherein, m is the search cycle, and m is natural number, when the 3rd section of GSM search mission
When finding the sync bit of the GSM on 51m+4 frame and the position without paging conflict, synchronization is successful, otherwise synchronization failure.
7. a kind of mobile terminal, it is characterised in that the mobile terminal includes the LTE as any one of claim 4 to 6
GSM cell sychronisation under+GSM double card LTE packet switches.
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| CN201610852992.XA CN107872840B (en) | 2016-09-26 | 2016-09-26 | GSM cell synchronization method and device under LTE + GSM dual-card LTE packet switching and mobile terminal |
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| WO2015046802A1 (en) * | 2013-09-27 | 2015-04-02 | 엘지전자 주식회사 | Method for synchronization between user equipment for device-to-device (d2d) communication in wireless communication system and apparatus for same |
| CN104684065A (en) * | 2013-11-26 | 2015-06-03 | 联芯科技有限公司 | Method and device for synchronizing and measuring GSM neighboring regions in GSM exclusive-OR mode |
| WO2015108308A1 (en) * | 2014-01-15 | 2015-07-23 | 엘지전자 주식회사 | Method for performing cell search procedure and user equipment for performing search procedure on basis of search signal in wireless communication system |
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