CN104812023B - Method, user equipment and the communication equipment of small bandwidth UMTS cell searchings - Google Patents
Method, user equipment and the communication equipment of small bandwidth UMTS cell searchings Download PDFInfo
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- CN104812023B CN104812023B CN201410035008.1A CN201410035008A CN104812023B CN 104812023 B CN104812023 B CN 104812023B CN 201410035008 A CN201410035008 A CN 201410035008A CN 104812023 B CN104812023 B CN 104812023B
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- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000004891 communication Methods 0.000 title claims abstract description 32
- 238000010295 mobile communication Methods 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004590 computer program Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7083—Cell search, e.g. using a three-step approach
Abstract
The embodiment of the invention discloses a kind of method, user equipment and the communication equipments of small bandwidth UMTS cell searchings, are related to field of communication technology, can save the time searched for needed for small bandwidth UMTS cells.The method of the present invention includes：It searches for and determines Universal Mobile Communication System（UMTS）Cell；The communication equipment for obtaining the UMTS cells passes through broadcast channel（BCH）The broadcast message of broadcast, the broadcast message include at least：The cell information of the small bandwidth UMTS cell adjacent with the UMTS cells；According to the cell information, searches for and access the small bandwidth UMTS cells.The present invention is suitable for searching for the scene of small bandwidth UMTS cells.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of method of small bandwidth UMTS cell searchings, user equipmenies
And communication equipment.
Background technology
In UMTS（Universal Mobile Telecommunications System, Universal Mobile Communication System）
In, user equipment obtains network by cell searching, and initiates to register to the network of cell, and cell can be resided in by succeeding in registration
Network in and serviced.Small bandwidth UMTS refers to the UMTS that system bandwidth is less than 5MHz, for flexible configuration frequency resource,
Operator can place small bandwidth UMTS using scattered frequency resource, when searching for small bandwidth UMTS cells, user equipment
It needs to scan for each possible small bandwidth UMTS, such as：The small bandwidth UMTS cells of user equipment searches, if user sets
It is standby to support that bandwidth is the UMTS of 5MHz, 2.5MHz, 1.25MHz, then it is respectively 5MHz, 2.5MHz to bandwidth that user equipment, which needs,
The UMTS cells of 1.25MHz scan for, as shown in Figure 1, in the frequency range with detectable power density, Yong Hushe
The frequency point of the UMTS cells of the small bandwidth of search of the standby step-length needed as unit of 200kHz step by step, setting UMTS support three
The UMTS of kind different bandwidth, so same search process will carry out three times so that the small bandwidth UMTS cells of user equipment searches
It needs to take a long time.
In order to solve the problems, such as that the small bandwidth UMTS cells of user equipment searches spend the time longer, the prior art sets user
The frequency information of the standby UMTS cells and its adjacent cell being resident stores in a user device, when the small bandwidth of user equipment searches
It when UMTS cells, directly scans in the frequency information of storage, is searched user equipment access according to frequency information
Small bandwidth UMTS cells save and search for the time that small bandwidth UMTS cells are spent.
But when user equipment is in the cell not being resident, this cell and its adjacent cell are not stored in advance
Frequency information, the frequency information of this cell and its adjacent cell can not be searched in the frequency information of storage, is still needed
Repeatedly to carry out the frequency point search of the small bandwidth UMTS cells based on primary synchronization channel step by step as unit of a fixed step size,
Therefore required small bandwidth UMTS cells are searched still to need to spend longer time.
Invention content
The embodiment of the present invention provides a kind of method, user equipment and the communication equipment of small bandwidth UMTS cell searchings, energy
It enough saves due to searching for the time needed for small bandwidth UMTS cells.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that：
In a first aspect, the embodiment of the present invention provides a kind of method of small bandwidth UMTS cell searchings, including：
It searches for and determines Universal Mobile Communication System（UMTS）Cell；
The communication equipment for obtaining the UMTS cells passes through broadcast channel（BCH）The broadcast message of broadcast, the broadcast letter
Breath includes at least：The cell information of the small bandwidth UMTS cell adjacent with the UMTS cells；
According to the cell information, searches for and access the small bandwidth UMTS cells.
Second aspect, the embodiment of the present invention also provide a kind of method of small bandwidth UMTS cell searchings, including：
Acquisition and Universal Mobile Communication System（UMTS）The cell information of the adjacent small bandwidth UMTS cells of cell, and by institute
The broadcast message of the UMTS cells is added in the cell information for stating small bandwidth UMTS cells；
Pass through the broadcast channel of the UMTS cells（BCH）The broadcast message is broadcasted, in order to which user equipment is from described
The cell information is obtained in broadcast message, and is searched for according to the cell information and accessed the small bandwidth UMTS cells.
The third aspect, the embodiment of the present invention also provide a kind of user equipment, including：
Determining module, for searching for and determining Universal Mobile Communication System（UMTS）Cell；
Acquisition module, the communication equipment for obtaining the UMTS cells pass through broadcast channel（BCH）The broadcast of broadcast is believed
Breath, the broadcast message include at least：The cell information of the small bandwidth UMTS cell adjacent with the UMTS cells；
Search module, for according to the cell information, searching for and accessing the small bandwidth UMTS cells.
Fourth aspect, the embodiment of the present invention also provide a kind of communication equipment, including：
Module is added, for acquisition and Universal Mobile Communication System（UMTS）The adjacent small bandwidth UMTS cells of cell it is small
Area's information, and the cell information of the small bandwidth UMTS cells is added to the broadcast message of the UMTS cells；
Broadcast module, for the broadcast channel by the UMTS cells（BCH）Broadcast the broadcast message, in order to
Family equipment obtains the cell information from the broadcast message, and is searched for according to the cell information and access the small bandwidth
UMTS cells.
Method, user equipment and the communication equipment of a kind of small bandwidth UMTS cell searchings provided in an embodiment of the present invention, energy
It is enough first to search for UMTS cells, after searching UMTS cells, obtain the BCH of UMTS cells（Broadcasting Channel, extensively
Broadcast channel）Broadcast message, and the cell information of adjacent small bandwidth UMTS cells is obtained from broadcast message, according to adjacent small band
The cell information of wide UMTS cells is searched for and accesses small bandwidth UMTS cells.Compared with prior art, mobile device in the present invention
From the broadcast message of the BCH of the UMTS cells searched, the adjacent small bandwidth UMTS cell of UMTS cell small can be obtained
Area's information with fast search and can be linked into small bandwidth UMTS cells according to cell information, be not resident when user equipment is in
Cell when, the cell information of small bandwidth UMTS cells can be obtained from the broadcast message of BCH, avoiding problems due to user
Equipment does not store the frequency information of cell and what is needed searches for the process of small bandwidth UMTS cells, therefore eliminates small due to searching for
Time needed for bandwidth UMTS cells.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to needed in the embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the example schematic that the prior art searches for small bandwidth UMTS cells；
Fig. 2 is a kind of flow chart of the method for small bandwidth UMTS cell searchings provided in an embodiment of the present invention；
Fig. 3 is the example schematic of cell information list provided in an embodiment of the present invention；
Fig. 4 a, Fig. 4 b are a kind of a kind of specific reality of the method for small bandwidth UMTS cell searchings provided in an embodiment of the present invention
The flow chart of existing mode；
Fig. 5 is the flow chart of the method for the small bandwidth UMTS cell searchings of another kind provided in an embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram of user equipment provided in an embodiment of the present invention；
Fig. 7 is a kind of structural schematic diagram of a kind of specific implementation of user equipment provided in an embodiment of the present invention；
Fig. 8 is a kind of structural schematic diagram of another specific implementation of user equipment provided in an embodiment of the present invention；
Fig. 9 is a kind of structural schematic diagram of communication equipment provided in an embodiment of the present invention.
Specific implementation mode
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 describes, 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, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Technical solution provided in an embodiment of the present invention is applied in the scene for searching for small bandwidth UMTS cells, and user equipment is searched
Rope simultaneously determines UMTS（Universal Mobile Telecommunications System, Universal Mobile Communication System）It is small
Area, communication equipment the cell information of the adjacent small bandwidth UMTS cells of UMTS cells are added in the broadcast message of UMTS cells,
And the broadcast message is broadcasted, acquiring broadcast information by user equipment, and searched for according to broadcast message and access small bandwidth UMTS cells.
In practical applications, user equipment can be mobile phone, PAD etc., and communication equipment can be base station, network service end etc..
An embodiment of the present invention provides a kind of methods of small bandwidth UMTS cell searchings, as shown in Fig. 2, including：
101, user equipment searches simultaneously determine Universal Mobile Communication System（UMTS）Cell.
Wherein, the bandwidth of UMTS is 5MHz, and user equipment can conventionally, with detectable power density
Frequency range in the step scan of 200kHz and obtain the center frequency point of UMTS cells, so that it is determined that UMTS cells.User
Equipment can also change step-length or scan and obtain the center frequency point of UMTS cells using other optimization means, determine that UMTS is small
Area.
102, the communication equipment for obtaining the UMTS cells passes through broadcast channel（BCH）The broadcast message of broadcast.
Wherein, after user equipment determines UMTS cells, P-SCH can be used（Primary Synchronization
Code Channel, primary synchronization channel）Slot synchronization is carried out, S-SCH is used（Secondary Synchronization Code
Channel, auxiliary synchronization channel）It carries out frame synchronization and master disturbs code group identification, use P-CPICH（Primary Common Pilot
Channel, Primary Common Pilot Channel）Main scrambler identification is carried out, obtains main scrambler, and decode P-CCPCH（Primary Common
Control Physical Channel, Primary Common Control Physical Channel）, to obtain BCH（Broadcast Channel, extensively
Broadcast channel）Broadcast message.
Wherein, broadcast message includes at least the cell information of the small bandwidth UMTS cell adjacent with UMTS cells, broadcast letter
The cell information of small bandwidth UMTS cells in breath can be indicated in a manner of list.Such as：Small bandwidth in broadcast message
The cell information of UMTS cells forms list, and cell information list is as shown in Figure 3.
Optionally, cell information includes at least the bandwidth and center frequency point of small bandwidth UMTS cells, can also include small band
The information such as the frequency range of wide UMTS cells.Obtain the bandwidth and center frequency point of small bandwidth UMTS cells, it will be able to fast search small band
Wide UMTS cells.
103, according to the cell information, searches for and access the small bandwidth UMTS cells.
Wherein, user equipment searches small bandwidth UMTS cells, and can pass through P-SCH according to the cell information of acquisition
It is synchronous with small bandwidth UMTS cells acquisition, that is, access small bandwidth UMTS cells.
A kind of method of small bandwidth UMTS cell searchings provided in an embodiment of the present invention, can first search for UMTS cells,
After searching UMTS cells, the BCH of UMTS cells is obtained（Broadcasting Channel, broadcast channel）Broadcast message,
And the cell information of adjacent small bandwidth UMTS cells is obtained from broadcast message, believed according to the cell of adjacent small bandwidth UMTS cells
Breath is searched for and accesses small bandwidth UMTS cells.Compared with prior art, mobile device can be from the UMTS searched in the present invention
In the broadcast message of the BCH of cell, the cell information of the adjacent small bandwidth UMTS cells of UMTS cells is obtained, according to cell information
With fast search and small bandwidth UMTS cells can be linked into, it, can be from BCH's when user equipment is in the cell not being resident
The cell information that small bandwidth UMTS cells are obtained in broadcast message, avoiding problems the frequencies for not storing cell due to user equipment
Information and the process of the small bandwidth UMTS cells of search needed, thus eliminate due to search for needed for small bandwidth UMTS cells when
Between.
Optionally, on the basis of scheme shown in Fig. 2, the embodiment of the present invention additionally provides a kind of small bandwidth UMTS cells
The scheme of the method for search further refines 103 implementation procedure in Fig. 1, wherein 103 can be implemented as
1031a-1032a, as shown in fig. 4 a, including：
1031a searches for the small bandwidth UMTS cells, and obtains connecing for each small bandwidth UMTS cells searched
Receive signal strength instruction（RSSI）.
Wherein, it if searching multiple small bandwidth UMTS cells during searching for small bandwidth UMTS cells, obtains
The RSSI of each small bandwidth UMTS cell（Received Signal Strength Indicator, received signal strength refer to
Show）, and the RSSI of each small bandwidth UMTS cell is compared.
1032a chooses and accesses the strongest small bandwidth UMTS cells of the RSSI.
Wherein, the reception signal of user equipment small bandwidth UMTS cells strongest to RSSI is best, choose search it is each
The strongest small bandwidth UMTS cells of RSSI in a small bandwidth UMTS cells, and access.
A kind of method of small bandwidth UMTS cell searchings provided in an embodiment of the present invention, can first search for UMTS cells,
After searching UMTS cells, the BCH of UMTS cells is obtained（Broadcasting Channel, broadcast channel）Broadcast message,
And the cell information of adjacent small bandwidth UMTS cells is obtained from broadcast message, believed according to the cell of adjacent small bandwidth UMTS cells
Breath searches for small bandwidth UMTS cells, when searching the small bandwidth UMTS cells of more than one, chooses the strongest small bands of wherein RSSI
Wide UMTS cells access.Compared with prior art, mobile device can be from the wide of the BCH of the UMTS cells searched in the present invention
It broadcasts in information, obtains the cell information of the adjacent small bandwidth UMTS cells of UMTS cells, it can be with fast search according to cell information
And small bandwidth UMTS cells are linked into, when user equipment is in the cell not being resident, can be obtained from the broadcast message of BCH
The cell information for taking small bandwidth UMTS cells is needed avoiding problems the frequency information for not stored cell due to user equipment
The process of small bandwidth UMTS cells is searched for, therefore is eliminated due to searching for the time needed for small bandwidth UMTS cells；And it is searching for
The multiple small bandwidth UMTS cells arrived choose the strongest small bandwidth UMTS cells accesses of RSSI, ensure that the small bandwidth UMTS of access
The signal quality of cell.
Optionally, shown in Fig. 2 and Fig. 4 a on the basis of scheme, the embodiment of the present invention additionally provides a kind of small bandwidth
The scheme of the method for UMTS cell searchings, wherein increase 104,103 implementation procedure is further refined, 103 can also have
Body is embodied as 1031b, as shown in Figure 4 b, including：
104, access the UMTS cells.
Wherein, when searching UMTS cells, the UMTS cells are first accessed.
1031b, detects whether the small bandwidth UMTS cells meet switching condition.
Wherein, detect whether small bandwidth UMTS cells meet switching condition, switching condition can be by user preset.Such as：
Switching condition is the RSRP of small bandwidth UMTS cells（Reference Signal Receiving Power, reference signal receive
Power）Value be higher than the UMTS cells that have accessed.
1032b, if meeting the switching condition, the user equipment switches to the small bandwidth from the UMTS cells
UMTS cells.
Wherein, it if small bandwidth UMTS cells meet switching condition, triggers user equipment and switches to small band from UMTS cells
Wide UMTS cells.Such as：Switching condition is the switching condition in the example of 1031b, and user equipment is mobile phone, and small bandwidth UMTS is small
The RSRP in area（Reference Signal Receiving Power, Reference Signal Received Power）Value be higher than and accessed
UMTS cells, then mobile phone from UMTS cells be switched to RSRP value be higher than UMTS cells small bandwidth UMTS cells.
Wherein, if small bandwidth UMTS cells are unsatisfactory for switching condition, access UMTS cells before user equipment is kept
State is constant.
A kind of method of small bandwidth UMTS cell searchings provided in an embodiment of the present invention, can first search for UMTS cells,
After searching UMTS cells, the BCH of UMTS cells is obtained（Broadcasting Channel, broadcast channel）Broadcast message,
And the cell information of adjacent small bandwidth UMTS cells is obtained from broadcast message, the UMTS cells searched are first accessed, detection is small
Whether bandwidth UMTS cells meet switching condition, if small bandwidth UMTS cells meet switching condition, user equipment is small from UMTS
Area switches to small bandwidth UMTS cells.Compared with prior art, mobile device can be from the UMTS cells searched in the present invention
BCH broadcast message in, obtain the cell information of the adjacent small bandwidth UMTS cells of UMTS cells, can be with according to cell information
Fast search is simultaneously linked into small bandwidth UMTS cells, can be from the broadcast of BCH when user equipment is in the cell not being resident
The cell information that small bandwidth UMTS cells are obtained in information, avoiding problems the frequency informations for not storing cell due to user equipment
And the process of the small bandwidth UMTS cells of search needed, therefore eliminate due to searching for the time needed for small bandwidth UMTS cells.
The embodiment of the present invention additionally provides a kind of method of small bandwidth UMTS cell searchings, as shown in figure 5, including：
201, obtain and Universal Mobile Communication System（UMTS）The cell information of the adjacent small bandwidth UMTS cells of cell, and
The cell information of the small bandwidth UMTS cells is added to the broadcast message of the UMTS cells.
Wherein, communication equipment can open Automatic Neighboring Relation function, and the user within the scope of communication device broadcasts is notified to set
It is standby to carry out small bandwidth UMTS cell searchings, and the cell information of the small bandwidth UMTS cells searched is transferred to communication equipment,
The broadcast message of UMTS cells is added in the cell information of small bandwidth UMTS cells by communication equipment again.It can also be in the network planning
When, the cell information of small bandwidth UMTS cells is manually added in the broadcast message of UMTS cells.The broadcast of UMTS cells is believed
Breath can be by OAM（Operation Administration and Maintenance, operation management maintainance）System is matched
Set regulation and control.
Wherein, the cell information of the small bandwidth UMTS cells in broadcast message can be indicated in a manner of list.Such as：Extensively
The cell information for broadcasting the small bandwidth UMTS cells in information forms list, and cell information list is as shown in Figure 3.
Optionally, cell information includes at least the bandwidth and center frequency point of small bandwidth UMTS cells, can also include small band
The information such as the frequency range of wide UMTS cells.
202, pass through the broadcast channel of the UMTS cells（BCH）Broadcast the broadcast message, in order to user equipment from
The cell information is obtained in the broadcast message, and is searched for according to the cell information and to access the small bandwidth UMTS small
Area.
Wherein, communication device broadcasts include at least the broadcast message of the cell information of small bandwidth UMTS cells so that user
Equipment can be searched for according to the cell information in broadcast message and access small bandwidth UMTS cells.
A kind of method of small bandwidth UMTS cell searchings provided in an embodiment of the present invention, it is adjacent can to obtain UMTS cells
The cell information of small bandwidth UMTS cells, and the cell information of small bandwidth UMTS cells is added to the broadcast message of UMTS cells
In, by the broadcast message of communication device broadcasts UMTS cells, in order to which user equipment obtains small bandwidth UMTS from broadcast message
The cell information of cell, and searched for according to cell information and access small bandwidth UMTS cells.Compared with prior art, in the present invention
Communication equipment can obtain the cell information of the adjacent small bandwidth UMTS cells of UMTS cells, and by the small of small bandwidth UMTS cells
Area's information is added in the broadcast message of UMTS cells so that user equipment is believed according to the cell for broadcasting medium and small bandwidth UMTS cells
Breath fast search is simultaneously linked into small bandwidth UMTS cells, can be from the wide of BCH when user equipment is in the cell not being resident
The cell information that small bandwidth UMTS cells are obtained in information is broadcast, avoiding problems the frequency letters for not storing cell due to user equipment
Breath and the process of the small bandwidth UMTS cells of search needed, thus eliminate due to search for needed for small bandwidth UMTS cells when
Between.
The embodiment of the present invention additionally provides a kind of user equipment 300, as shown in fig. 6, including：
Determining module 301, for searching for and determining Universal Mobile Communication System（UMTS）Cell.
Acquisition module 302, the communication equipment for obtaining the UMTS cells pass through broadcast channel（BCH）The broadcast of broadcast
Information.
Wherein, broadcast message includes at least the cell information of the small bandwidth UMTS cell adjacent with UMTS cells.
Optionally, cell information includes at least the bandwidth and center frequency point of small bandwidth UMTS cells.
Search module 303, for according to the cell information, searching for and accessing the small bandwidth UMTS cells.
A kind of user equipment provided in an embodiment of the present invention can first search for UMTS cells, after searching UMTS cells,
Obtain the BCH of UMTS cells（Broadcasting Channel, broadcast channel）Broadcast message, and obtained from broadcast message
The cell information of adjacent small bandwidth UMTS cells is searched for according to the cell information of adjacent small bandwidth UMTS cells and accesses small bandwidth
UMTS cells.Compared with prior art, mobile device can be from the broadcast message of the BCH of the UMTS cells searched in the present invention
In, the cell information of the adjacent small bandwidth UMTS cells of UMTS cells is obtained, with fast search and can be accessed according to cell information
To small bandwidth UMTS cells small band can be obtained when user equipment is in the cell not being resident from the broadcast message of BCH
The cell information of wide UMTS cells, the search needed avoiding problems the frequency information for not storing cell due to user equipment are small
The process of bandwidth UMTS cells, therefore eliminate due to searching for the time needed for small bandwidth UMTS cells.
Optionally, as shown in fig. 7, described search module 303, including：
Search unit 3031 for searching for the small bandwidth UMTS cells, and obtains each small bandwidth searched
The received signal strength indicator of UMTS cells（RSSI）.
Selection unit 3032, for choosing and accessing the strongest small bandwidth UMTS cells of the RSSI.
A kind of user equipment provided in an embodiment of the present invention can first search for UMTS cells, after searching UMTS cells,
Obtain the BCH of UMTS cells（Broadcasting Channel, broadcast channel）Broadcast message, and obtained from broadcast message
It is small to search for small bandwidth UMTS according to the cell information of adjacent small bandwidth UMTS cells for the cell information of adjacent small bandwidth UMTS cells
The strongest small bandwidth UMTS cells accesses of wherein RSSI are chosen when searching the small bandwidth UMTS cells of more than one in area.With it is existing
There is technology to compare, mobile device it is small can to obtain UMTS from the broadcast message of the BCH of the UMTS cells searched in the present invention
The cell information of the adjacent small bandwidth UMTS cells in area, can be with fast search and to be linked into small bandwidth UMTS small according to cell information
Area can obtain the small of small bandwidth UMTS cells when user equipment is in the cell not being resident from the broadcast message of BCH
Area's information, the small bandwidth UMTS cells of search needed avoiding problems the frequency information for not storing cell due to user equipment
Process, therefore eliminate due to searching for the time needed for small bandwidth UMTS cells；And it is small in the multiple small bandwidth UMTS searched
Area chooses the strongest small bandwidth UMTS cells accesses of RSSI, ensure that the signal quality of the small bandwidth UMTS cells of access.
Optionally, as shown in figure 8, further including：
AM access module 304, for accessing the UMTS cells.
Described search module 303, including：
Detection unit 3033, for detecting whether the small bandwidth UMTS cells meet switching condition.
Switch unit 3034, for when meeting the switching condition, the user equipment to switch from the UMTS cells
To the small bandwidth UMTS cells.
A kind of user equipment provided in an embodiment of the present invention can first search for UMTS cells, after searching UMTS cells,
Obtain the BCH of UMTS cells（Broadcasting Channel, broadcast channel）Broadcast message, and obtained from broadcast message
The cell information of adjacent small bandwidth UMTS cells, first accesses the UMTS cells searched, whether full detects small bandwidth UMTS cells
Sufficient switching condition, if small bandwidth UMTS cells meet switching condition, user equipment switches to small bandwidth UMTS from UMTS cells
Cell.Compared with prior art, the present invention in mobile device can from the broadcast message of the BCH of the UMTS cells searched,
The cell information for obtaining the adjacent small bandwidth UMTS cells of UMTS cells with fast search and can be linked into small according to cell information
Bandwidth UMTS cells can obtain small bandwidth when user equipment is in the cell not being resident from the broadcast message of BCH
The cell information of UMTS cells, the search small band needed avoiding problems the frequency information for not storing cell due to user equipment
The process of wide UMTS cells, therefore eliminate due to searching for the time needed for small bandwidth UMTS cells.
The embodiment of the present invention additionally provides a kind of communication equipment 400, as shown in figure 9, including：
Module 401 is added, for acquisition and Universal Mobile Communication System（UMTS）The adjacent small bandwidth UMTS cells of cell
Cell information, and the cell information of the small bandwidth UMTS cells is added to the broadcast message of the UMTS cells.
Broadcast module 402, for the broadcast channel by the UMTS cells（BCH）The broadcast message is broadcasted, so as to
The cell information is obtained from the broadcast message in user equipment, and is searched for and accessed described small according to the cell information
Bandwidth UMTS cells.
Optionally, cell information includes at least the bandwidth and center frequency point of small bandwidth UMTS cells.
A kind of communication equipment provided in an embodiment of the present invention can obtain the adjacent small bandwidth UMTS cells of UMTS cells
Cell information, and the cell information of small bandwidth UMTS cells is added in the broadcast message of UMTS cells, it is wide by communication equipment
The broadcast message for broadcasting UMTS cells, in order to which user equipment obtains the cell information of small bandwidth UMTS cells from broadcast message,
And it is searched for according to cell information and accesses small bandwidth UMTS cells.Compared with prior art, communication equipment can obtain in the present invention
The cell information for the small bandwidth UMTS cells for taking UMTS cells adjacent, and the cell information of small bandwidth UMTS cells is added to
In the broadcast message of UMTS cells so that user equipment is according to broadcasting the cell information fast search of medium and small bandwidth UMTS cells simultaneously
Small bandwidth UMTS cells are linked into, when user equipment is in the cell not being resident, can be obtained from the broadcast message of BCH
The cell information of small bandwidth UMTS cells, the searching for needing avoiding problems the frequency information for not storing cell due to user equipment
The process of the small bandwidth UMTS cells of rope, therefore eliminate due to searching for the time needed for small bandwidth UMTS cells.
Each embodiment in this specification is described in a progressive manner, identical similar portion between each embodiment
Point just to refer each other, and each embodiment focuses on the differences from other embodiments.Especially for equipment reality
For applying example, since it is substantially similar to the method embodiment, so describing fairly simple, related place is referring to embodiment of the method
Part explanation.
One of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer read/write memory medium
In, the program is when being executed, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory（Read-Only Memory, ROM）Or random access memory（Random Access
Memory, RAM）Deng.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, all answer by the change or replacement that can be readily occurred in
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (8)
1. a kind of method of small bandwidth UMTS cell searchings, which is characterized in that including：
User equipment searches simultaneously determine Universal Mobile Communication System UMTS cells；
The broadcast message that the communication equipment of the UMTS cells is broadcasted by broadcast channel BCH is obtained, the broadcast message is at least
Including：The cell information of the small bandwidth UMTS cell adjacent with the UMTS cells；The cell information includes at least：It is described small
The bandwidth and center frequency point of bandwidth UMTS cells；
According to the cell information, searches for and access the small bandwidth UMTS cells.
2. according to the method described in claim 1, it is characterized in that, described search and access the small bandwidth UMTS cells, wrap
It includes：
The small bandwidth UMTS cells are searched for, and obtain the received signal strength of each small bandwidth UMTS cells searched
Indicate RSSI；
It chooses and accesses the strongest small bandwidth UMTS cells of the RSSI.
3. according to the method described in claim 1, it is characterized in that, described according to the cell information, search for and access institute
Before stating small bandwidth UMTS cells, further include：Access the UMTS cells；
It is described to search for and access the small bandwidth UMTS cells according to the cell information, including：
Detect whether the small bandwidth UMTS cells meet switching condition；
If meeting the switching condition, the user equipment switches to the small bandwidth UMTS cells from the UMTS cells.
4. a kind of method of small bandwidth UMTS cell searchings, which is characterized in that including：
Communication equipment obtains the cell information of the small bandwidth UMTS cell adjacent with Universal Mobile Communication System UMTS cells, and will
The broadcast message of the UMTS cells is added in the cell information of the small bandwidth UMTS cells；The cell information includes at least：
The bandwidth and center frequency point of the small bandwidth UMTS cells；
The broadcast message is broadcasted by the broadcast channel BCH of the UMTS cells, in order to which user equipment is believed from the broadcast
The cell information is obtained in breath, and is searched for according to the cell information and accessed the small bandwidth UMTS cells.
5. a kind of user equipment for small bandwidth UMTS cell searchings, which is characterized in that including：
Determining module, for searching for and determining Universal Mobile Communication System UMTS cells；
Acquisition module, the broadcast message that the communication equipment for obtaining the UMTS cells is broadcasted by broadcast channel BCH are described
Broadcast message includes at least：The cell information of the small bandwidth UMTS cell adjacent with the UMTS cells；The cell information is extremely
Include less：The bandwidth and center frequency point of the small bandwidth UMTS cells；
Search module, for according to the cell information, searching for and accessing the small bandwidth UMTS cells.
6. user equipment according to claim 5, which is characterized in that described search module, including：
Search unit for searching for the small bandwidth UMTS cells, and obtains each small bandwidth UMTS cells searched
Received signal strength indicator RSSI；
Selection unit, for choosing and accessing the strongest small bandwidth UMTS cells of the RSSI.
7. user equipment according to claim 5, which is characterized in that further include：
AM access module, for accessing the UMTS cells；
Described search module, including：
Detection unit, for detecting whether the small bandwidth UMTS cells meet switching condition；
Switch unit, for when meeting the switching condition, the user equipment to switch to described small from the UMTS cells
Bandwidth UMTS cells.
8. a kind of communication equipment for small bandwidth UMTS cell searchings, which is characterized in that including：
Module is added, the cell letter for obtaining the small bandwidth UMTS cell adjacent with Universal Mobile Communication System UMTS cells
It ceases, and the cell information of the small bandwidth UMTS cells is added to the broadcast message of the UMTS cells；The cell information is extremely
Include less：The bandwidth and center frequency point of the small bandwidth UMTS cells；
Broadcast module, for broadcasting the broadcast message by the broadcast channel BCH of the UMTS cells, in order to user equipment
The cell information is obtained from the broadcast message, and is searched for according to the cell information and to access the small bandwidth UMTS small
Area.
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| CN201410035008.1A CN104812023B (en) | 2014-01-24 | 2014-01-24 | Method, user equipment and the communication equipment of small bandwidth UMTS cell searchings |
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| CN101330356A (en) * | 2007-06-20 | 2008-12-24 | 北京三星通信技术研究有限公司 | Device and method for transmitting broadcast information in a wireless communication system |
| CN101600242A (en) * | 2009-07-06 | 2009-12-09 | 深圳华为通信技术有限公司 | Small region search method and portable terminal |
| CN101754301A (en) * | 2008-12-16 | 2010-06-23 | 华为技术有限公司 | Switching subdistrict selection method, device and base station |
| CN101867989A (en) * | 2009-04-16 | 2010-10-20 | 中国移动通信集团公司 | Cell reselection method, base station, vehicle-mounted equipment and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100933160B1 (en) * | 2006-10-02 | 2009-12-21 | 삼성전자주식회사 | Method and apparatus for transmitting and receiving paging information in wireless communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101330356A (en) * | 2007-06-20 | 2008-12-24 | 北京三星通信技术研究有限公司 | Device and method for transmitting broadcast information in a wireless communication system |
| CN101754301A (en) * | 2008-12-16 | 2010-06-23 | 华为技术有限公司 | Switching subdistrict selection method, device and base station |
| CN101867989A (en) * | 2009-04-16 | 2010-10-20 | 中国移动通信集团公司 | Cell reselection method, base station, vehicle-mounted equipment and system |
| CN101600242A (en) * | 2009-07-06 | 2009-12-09 | 深圳华为通信技术有限公司 | Small region search method and portable terminal |
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