CN104427580B - A kind of method for searching network and LTE terminal of LTE terminal - Google Patents
A kind of method for searching network and LTE terminal of LTE terminal Download PDFInfo
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- CN104427580B CN104427580B CN201310382775.5A CN201310382775A CN104427580B CN 104427580 B CN104427580 B CN 104427580B CN 201310382775 A CN201310382775 A CN 201310382775A CN 104427580 B CN104427580 B CN 104427580B
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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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Abstract
The present invention proposes a kind of method for searching network and LTE terminal of LTE terminal.Including：The PAN networks of LTE terminal can be used around the LTE terminal scanning of unregistered LTE network, and apply being added thereto a PAN network；After being successfully joined a PAN network, forwarding LTE network adjacent cell frequency information is asked to the LTE terminal of the registered LTE network of any of PAN networks, and receive the adjacent cell frequency information of the LTE network of the LTE terminal transmission of registered LTE network；LTE network is searched for according to adjacent cell frequency information.The present invention, which substantially reduces, searches the net time.
Description
Technical field
The invention belongs to the method for searching network and LTE terminal of field of mobile terminals more particularly to a kind of LTE terminal.
Background technology
Currently, 3GPP（3rd Generation Partnership Project, third generation partner program）Specification
Twenties LTE（Long Term Evolution, long term evolution）FDD（Frequency Division Duplexing,
Frequency division duplex）Frequency range and more than ten of LTETDD frequency range, LTE terminal chip can support at least six LTE frequency ranges simultaneously at present.When
After LTE terminal booting when initial network selection, as international roaming is switched on for the first time, and when terminal does not have any LTE network cell information,
LTE terminal will scan E-UTRAN according to its ability（Evolved Universal Terrestrial Radio Access
Network, the universal land radio access web of evolution）Whole radio-frequency channels of frequency range, to find an applicable cell.Each
In a carrier frequency, LTE terminal only needs to search for strongest cell.Once finding applicable cell, the cell is just selected.
It is fitted since the whole bandwidth for scanning whole LTE frequency ranges that LTE terminal is supported may be needed just to search first
With cell, entire search process may take very long.
The approach for shortening entire search process is to reduce the LTE frequency ranges for needing to scan as far as possible, or reduce and need to scan
Bandwidth, or not only reduced and needed the LTE frequency bands that scan, but also reduced the bandwidth for needing to scan.
Invention content
In view of above, the present invention proposes a kind of method for searching network and LTE terminal of LTE terminal, may to solve search process
Take very long problem.
According to an aspect of the present invention, a kind of method for searching network of LTE terminal is proposed, including：The LTE of unregistered LTE network is whole
The PAN of LTE terminal can be used around the scanning of end（Personal area network）Network, and apply being added thereto a PAN network；It is being successfully joined one
After a PAN networks, forwarding LTE network adjacent cell frequency is asked to the LTE terminal of the registered LTE network of any of PAN networks
Rate information, and receive the adjacent cell frequency information of the LTE network of the LTE terminal transmission of registered LTE network；According to neighbouring small
Area's frequency information searches for LTE network.
Preferably, by the self-organizing module construction PAN networks of two or more LTE terminals, PAN networks include PAN
Network coordinator and coordinator node, wherein the self-organizing module of the terminal of registered LTE network serves as PAN network coordination sections
Network is added as coordinator node in the self-organizing module of point, other LTE terminals.
Preferably, PAN network coordinators establish and safeguard that PAN networks, periodic broadcasting beacon frame are the association in PAN networks
Point of adjustment and the coordinator node offer time synchronization benchmark for wishing the addition network, handle the addition request of coordinator node, receive
Request from the new coordinator node that PAN networks are added, and LTE network adjacent cell frequency information is sent to the association for sending out request
Point of adjustment.
Preferably, the coordinator node periodic broadcasting beacon frame of the LTE terminal of registered LTE network is the association in PAN networks
Point of adjustment and the coordinator node offer time synchronization benchmark for wishing the addition network, receive from the new coordination that PAN networks are added
The request of node, and LTE network adjacent cell frequency information is sent to the coordinator node for sending out request.
Preferably, the self-organizing module of the LTE terminal of registered LTE network can take over the coordination section of current PAN networks
Point, alternatively, establishing another PAN network as PAN network coordinators and using different PAN identifiers.
Preferably, the beacon of PAN networks where the coordinator node of the LTE terminal of unregistered LTE network receives, and utilize letter
It is synchronous with the foundation of the coordinator node of PAN networks to mark frame, sends LTE network adjacent cell frequency information request message and gives PAN networks
In PAN network coordinators or coordinator node, it is neighbouring to receive the LTE network that PAN network coordinators or coordinator node are sent
Cell frequency information.
According to a further aspect of the invention, it is also proposed that a kind of LTE terminal, including：Self-organizing module, being configured at can around scanning
With the PAN networks of LTE terminal, and apply being added thereto a PAN network, or creates a new PAN network；Adjacent cell frequency
Rate information management module is configured at after being successfully joined a PAN network, to the registered LTE network of any of PAN networks
LTE terminal request forwarding LTE network adjacent cell frequency information, and the LTE that the LTE terminal for receiving registered LTE network is sent
The adjacent cell frequency information of network, or the request of the LTE terminal of unregistered LTE network is received by self-organizing module, and
Requested LTE network adjacent cell frequency information is sent to requesting party by self-organizing module；Adjacent cell frequency information
Memory module is configured at the adjacent cell frequency information of storage LTE network；LET network search modules are configured at according to neighbouring small
Area's frequency information searches for LTE network.
Preferably, by the self-organizing module construction PAN networks of two or more LTE terminals, PAN networks include PAN
Network coordinator and coordinator node, wherein the self-organizing module of the terminal of registered LTE network serves as PAN network coordination sections
Network is added as coordinator node in the self-organizing module of point, other LTE terminals.
Preferably, PAN network coordinators establish and safeguard that PAN networks, periodic broadcasting beacon frame are the association in PAN networks
Point of adjustment and the coordinator node offer time synchronization benchmark for wishing the addition network, handle the addition request of coordinator node, receive
Request from the new coordinator node that PAN networks are added, and LTE network adjacent cell frequency information is sent to the association for sending out request
Point of adjustment.
Preferably, the coordinator node periodic broadcasting beacon frame of the LTE terminal of registered LTE network is the association in PAN networks
Point of adjustment and the coordinator node offer time synchronization benchmark for wishing the addition network, receive from the new coordination that PAN networks are added
The request of node, and LTE network adjacent cell frequency information is sent to the coordinator node for sending out request.
Preferably, the self-organizing module of the LTE terminal of registered LTE network can take over current PAN network coordinators,
Alternatively, establishing another PAN network as PAN network coordinators and using different PAN identifiers.
Preferably, the beacon of PAN networks where the coordinator node of the LTE terminal of unregistered LTE network receives, and utilize letter
It is synchronous with the foundation of the coordinator node of PAN networks to mark frame, sends LTE network adjacent cell frequency information request message and gives PAN networks
In PAN network coordinators or coordinator node, it is neighbouring to receive the LTE network that PAN network coordinators or coordinator node are sent
Cell frequency information.
The present invention is using the LTE terminal of registered LTE network by the PAN networks between LTE terminal to unregistered LTE nets
The LTE terminal of network forwards the adjacent cell frequency information from LTE network, can be with so as to the LTE terminal of unregistered LTE network
The whole bandwidth for whole LTE frequency bands that LTE terminal is supported need not be scanned, but directly searches LTE network adjacent cell frequency,
To greatly shorten entire search process, the purpose for quickly searching net is realized.
Present invention could apply to the first network selections of LTE terminal, greatly shorten the first network selection time.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and constitutes the part of the present invention, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 show a kind of structural schematic diagram of LTE terminal in one embodiment of the invention.
Fig. 2 show the structural schematic diagram of PAN networks in the present invention.
The LTE terminal that Fig. 3 show registered LTE network in the present invention is used as server in PAN networks, not note also
The client of the LTE terminal of volume LTE network provides service.
Fig. 4 show a kind of flow diagram of the method for searching network of LTE terminal in one embodiment of the invention.
Specific implementation mode
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should be noted that：Unless in addition having
Body illustrates that the positioned opposite and numerical value of the component and step that otherwise illustrate in these embodiments does not limit the scope of the invention.
Simultaneously, it should be appreciated that for ease of description, the size of attached various pieces shown in the drawings is not according to reality
Proportionate relationship draw.
It is illustrative to the description only actually of at least one exemplary embodiment below, is never used as to the present invention
And its application or any restrictions that use.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part of specification.
In shown here and discussion all examples, any occurrence should be construed as merely illustrative, without
It is as limitation.Therefore, the other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent attached drawing in a attached drawing.
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.
Fig. 1 show a kind of structural schematic diagram of LTE terminal in one embodiment of the invention.The LTE terminal includes from group
Knit module, adjacent cell frequency information management module, adjacent cell frequency information memory module, LET network search modules, movement
Terminal baseband and mobile terminal radio frequency.
Self-organizing module is configured at the PAN that LTE terminal can be used around scanning（Personal Area Network, a domain
Net）Network, and apply being added thereto a PAN network, or create a new PAN network.
Adjacent cell frequency information management module is configured at after being successfully joined a PAN network, is appointed into PAN networks
The LTE terminal request forwarding LTE network adjacent cell frequency information of one registered LTE network, and receive registered LTE network
The adjacent cell frequency information of LTE network that sends of LTE terminal, or pass through self-organizing module and receive unregistered LTE network
LTE terminal request, and requested LTE network adjacent cell frequency information is sent to request by self-organizing module
Side.
Adjacent cell frequency information memory module is configured at the adjacent cell frequency information of storage LTE network.
LET network search modules are configured at and search for LTE network according to adjacent cell frequency information.
Fig. 2 show the structural schematic diagram of PAN networks in the present invention.
The LTE terminal that Fig. 3 show registered LTE network in the present invention is used as server in PAN networks, not note also
The client of the LTE terminal of volume LTE network provides service.
By the self-organizing module of two or more LTE terminals（Such as Zigbee module）Build a netted PAN net
Network, i.e., the PAN networks between LTE terminal.The self-organizing module of the LTE terminal of one registered LTE network serves as PAN networks association
Network is added as coordinator node in the self-organizing module of point of adjustment, other LTE terminals.Self-organizing mould in each LTE terminal
Block is all full-function device（FFD）, PAN network coordinators or coordinator node can be used as, or other coordinator nodes
Synchronous service is provided.
Wherein, PAN networks include PAN network coordinators and coordinator node, and the LTE terminal of unregistered LTE network can be with
To PAN network coordinators or the coordinator node of the LTE terminal of registered LTE network request forwarding LTE network adjacent cell frequency
Rate information, and receive the LTE network of the coordinator node transmission of the LTE terminal of PAN network coordinators or registered LTE network
Adjacent cell frequency information.
PAN network coordinators are responsible for setting up and maintaining PAN networks, and periodic broadcasting beacon frame is the coordination in PAN networks
Node and the coordinator node offer time synchronization benchmark for wishing the addition network, handle the addition request of coordinator node, receive and
From the request of the new coordinator node that PAN networks are added, and LTE network adjacent cell frequency information is sent to the coordination for sending out request
Node.In self-organizing network, there are two types of transmission mode, synchronous transfer modules（beacon mode）And asynchronous transfer mode
（non-beacon mode）, the present invention is using synchronous transfer module.In data synchronous transmission network network, a synchronous letter is needed
Number so as in network sending and receiving foundation on the same reference time benchmark, one of effect of beacon frame is to provide reference
Time reference.Beacon signal is sent by coordinator node by broadcast channel.The effect of beacon includes：The equipment of synchronous attachment, knows
Other PAN networks, describe the structure of superframe.
The effect of the coordinator node of the LTE terminal of registered LTE network includes：Periodic broadcasting beacon frame is in PAN networks
Coordinator node and wish that the coordinator node that the network is added provides time synchronization benchmark, receive from the new PAN networks that are added
The request of coordinator node, and LTE network adjacent cell frequency information is sent to the coordinator node for sending out request.Registered LTE nets
The self-organizing module of the LTE terminal of network can take over current PAN network coordinators, can also be used as PAN network coordination sections
Point simultaneously establishes another PAN network using different PAN identifiers.
The effect of the coordinator node of the LTE terminal of unregistered LTE network includes：The beacon of PAN networks where receiving, and profit
It is synchronous with the foundation of PAN network coordinators with beacon frame, it sends LTE network adjacent cell frequency information request message and gives PAN nets
The coordinator node of the LTE terminal of PAN network coordinators or registered LTE network in network, receive PAN network coordinators or
The LTE network adjacent cell frequency information that the coordinator node of the LTE terminal of registered LTE network is sent.Unregistered LTE network
For the coordinator node of LTE terminal after PAN networks are added, periodic broadcasting beacon frame is that the coordinator node in PAN networks adds with hope
The coordinator node for entering the network provides time synchronization benchmark, but LTE network adjacent cell frequency cannot be provided for other coordinator nodes
Rate information.
In one embodiment of the invention, the process for building PAN networks is illustrated.
When the self-organizing module of the LTE terminal of a registered LTE network（Such as Zigbee module）Scan PAN networks letter
When road performance in one's power in the range of do not have find PAN networks coordinator node, or find PAN networks coordinator node but by
Refusal is added, then what the self-organizing module of LTE terminal started PAN network establishes process.First, the self-organizing of LTE terminal
Module scans PAN network channels are to find an idle channel, for establishing new PAN networks.Then, selection one is in the sky
Unique 16 PAN identifiers in idle channel, for identifying the entire PAN networks that will be established.Then, selection one is entire
Network address of unique 16 network address as PAN network coordinators in PAN networks.Finally, beacon signal is sent to use
In the network discovery of other coordinator nodes.
After building PAN networks, the self-organizing module of the LTE terminal receives the PAN that its foundation is added in new coordinator node
Network.When receiving from the new request that coordinator node is added, sends LTE network adjacent cell frequency information and give the node.
When the number of nodes of PAN networks reaches maximum-norm（Theoretical value is 255）When, if receiving a new addition request, ring
It should ask and state that its addition can not be received.
The self-organizing module of the LTE terminal provides the time by periodic broadcasting beacon frame for the coordinator node in PAN networks
Synchronous base.
If another PAN network coordinator scans the channel that the PAN network coordinators use, PAN networks association
Point of adjustment will respond and state its presence.Because a channel cannot be used with region simultaneously by two PAN networks, otherwise
It can cause to interfere with each other.
After the PAN networks of LTE terminal foundation are added in the self-organizing module of the LTE terminal of registered LTE network, by fixed
Phase broadcast beacon frame is the self-organizing module of the other coordinator nodes and the LTE terminal for wishing to be added the PAN networks in PAN networks
Time synchronization benchmark is provided, the self-organizing module for having been added to the PAN networks but the LTE terminal of unregistered LTE network is received
Application, LTE network adjacent cell frequency information is provided for it.
The self-organizing module of the LTE terminal of unregistered LTE network received signal level into PAN networks is highest registered
The self-organizing module of the LTE terminal of LTE network sends the request for obtaining LTE network adjacent cell frequency information, once it please acquire
To confirmation, C/S is just established based on PAN networks between two LTE terminals（Client/server）Connection.If due to LTE ends
The mobility at end, or due to the variation of wireless transmission environments cause request cannot confirm, although request confirmed,
The transmission of LTE network adjacent cell frequency information fails, and the self-organizing module of the LTE terminal of unregistered LTE network will turn to PAN
The self-organizing module of the LTE terminal of the highest other registered LTE networks of current Received Signal level, which is sent, in network obtains LTE
The request of network adjacent cell frequency information.
The self-organizing module of the LTE terminal of unregistered LTE network is obtaining LTE network adjacent cell frequency information and successfully
After registering LTE network, the client that LTE terminal can be as server for the LTE terminal of other unregistered LTE networks provides
Service.
In one embodiment of the invention, the process for being added thereto a PAN network is illustrated.
Pass through the available LTE terminal PAN networks in scan channel search performance in one's power range.Start association process and is added
The PAN networks（Association process refers to IEEE802.15.4 protocol specifications and is required for when PAN networks are added in each coordinator node
Start association process）.When losing synchronous with PAN networks, starts isolated regrouping process and rejoin the PAN networks（Isolated weight
Group process refers to IEEE802.15.4 protocol specifications）.When an equipment last layer to media access control sublayer ask transmission data, still
When constantly receiving communication disruption message, the last layer of equipment just will be considered that it is isolated.Or isolated equipment startup refers to
Determine the regrouping process of channel or executes association process.
The step of association process, is as follows：1）The last layer of equipment sends association request to media access control sublayer, it is desirable that configuration association needs
PHY the and MAC PIB attribute values wanted, including：phyCurrentChannel、phyCurrentPage、macPANId、
MacCoordExtendedAddress or macCoordShortAddress；2）The media access control sublayer of equipment sends to coordinator node and closes
Join request command；3）The coordinator node for receiving request indicates that its media access control sublayer sends associated response order and set to request is associated
Standby, whether instruction association succeeds, if it is successful, will include the short of the equipment distribution that coordinator node is request in associated response order
Address；4）The short address received is stored in macShortAddress by equipment.
The present invention passes through the PAN between LTE terminal using the LTE terminal of registered LTE network（Personal Area
Network, personal area network）Network forwards the adjacent cell frequency letter from LTE network to the LTE terminal of unregistered LTE network
Breath, so that the LTE terminal of unregistered LTE network may not necessarily scan the entire band for whole LTE frequency bands that LTE terminal is supported
Width, but LTE network adjacent cell frequency is directly searched, to greatly shorten entire search process, realize the mesh for quickly searching net
's.
Present invention could apply to the first network selections of LTE terminal, greatly shorten the first network selection time.
Fig. 4 show a kind of flow diagram of the method for searching network of LTE terminal in one embodiment of the invention.This method packet
Include following steps：
Step 41, the PAN networks of LTE terminal can be used around the LTE terminal scanning of unregistered LTE network, and applies being added
One of PAN networks.
Step 42, after being successfully joined a PAN network, the LTE to the registered LTE network of any of PAN networks is whole
End request forwarding LTE network adjacent cell frequency information, and receive the LTE network of the LTE terminal transmission of registered LTE network
Adjacent cell frequency information.
Step 43, LTE network is searched for according to adjacent cell frequency information.
Wherein, PAN networks include PAN network coordinators and coordinator node, and the LTE terminal of unregistered LTE network can be with
To PAN network coordinators or coordinator node request forwarding LTE network adjacent cell frequency information, and receive the PAN network coordinations
The adjacent cell frequency information for the LTE network that node or coordinator node are sent.
PAN network coordinators are responsible for setting up and maintaining PAN networks, and periodic broadcasting beacon frame is the coordination in PAN networks
Node and the coordinator node offer time synchronization benchmark for wishing the addition network, handle the addition request of coordinator node, receive and
From the request of the new coordinator node that PAN networks are added, and LTE network adjacent cell frequency information is sent to the coordination for sending out request
Node.In self-organizing network, there are two types of transmission mode, synchronous transfer modules（beacon mode）And asynchronous transfer mode
（non-beacon mode）, the present invention is using synchronous transfer module.In data synchronous transmission network network, a synchronous letter is needed
Number so as in network sending and receiving foundation on the same reference time benchmark, one of effect of beacon frame is to provide reference
Time reference.Beacon signal is sent by coordinator node by broadcast channel.The effect of beacon includes：The equipment of synchronous attachment, knows
Other PAN networks, describe the structure of superframe.
The effect of the coordinator node of the LTE terminal of registered LTE network includes：Periodic broadcasting beacon frame is in PAN networks
Coordinator node and wish that the coordinator node that the network is added provides time synchronization benchmark, receive from the new PAN networks that are added
The request of coordinator node, and LTE network adjacent cell frequency information is sent to the coordinator node for sending out request.Registered LTE nets
The coordinator node of the LTE terminal of network can take over current PAN network coordinators, can also be used as PAN network coordinators
And establish another PAN network using different PAN identifiers.
The effect of the coordinator node of the LTE terminal of unregistered LTE network includes：The beacon of PAN networks where receiving, and profit
It is synchronous with the foundation of PAN network coordinators with beacon frame, it sends LTE network adjacent cell frequency information request message and gives PAN nets
It is adjacent to receive the LTE network that PAN network coordinators or coordinator node are sent for PAN network coordinators in network or coordinator node
Nearly cell frequency information.The coordinator node of the LTE terminal of unregistered LTE network is after being added PAN networks, periodic broadcasting beacon frame
The coordinator node that the network is added with hope for the coordinator node in PAN networks provides time synchronization benchmark, but cannot be other
Coordinator node provides LTE network adjacent cell frequency information.
In one embodiment of the invention, the process for building PAN networks is illustrated.
When the self-organizing module of the LTE terminal of a registered LTE network（Such as Zigbee module）Scan PAN networks letter
When road performance in one's power in the range of do not have find PAN networks coordinator node, or find PAN networks coordinator node but by
Refusal is added, then what the self-organizing module of LTE terminal started PAN network establishes process.First, the self-organizing of LTE terminal
Module scans PAN network channels are to find an idle channel, for establishing new PAN networks.Then, selection one is in the sky
Unique 16 PAN identifiers in idle channel, for identifying the entire PAN networks that will be established.Then, selection one is entire
Network address of unique 16 network address as PAN network coordinators in PAN networks.Finally, beacon signal is sent to use
In the network discovery of other coordinator nodes.
After building PAN networks, the self-organizing module of the LTE terminal receives the PAN that its foundation is added in new coordinator node
Network.When receiving from the new request that coordinator node is added, sends LTE network adjacent cell frequency information and give the node.
When the number of nodes of PAN networks reaches maximum-norm（Theoretical value is 255）When, if receiving a new addition request, ring
It should ask and state that its addition can not be received.
The self-organizing module of the LTE terminal provides the time by periodic broadcasting beacon frame for the coordinator node in PAN networks
Synchronous base.
If another PAN network coordinator scans the channel that the PAN network coordinators use, PAN networks association
Point of adjustment will respond and state its presence.Because otherwise a channel cannot can be caused mutually by two PAN Web vector graphics
Interference.
In one embodiment of the invention, the process for being added thereto a PAN network is illustrated.
Pass through the available LTE terminal PAN networks in scan channel search performance in one's power range.Start association process and is added
The PAN networks（Association process is that IEEE802.15.4 protocol specifications are required for opening when PAN networks are added in each terminal device
Dynamic association process）.When losing synchronous with PAN networks, starts isolated regrouping process and rejoin the PAN networks（Isolated recombination
Process is IEEE802.15.4 protocol specifications）.When an equipment last layer to media access control sublayer ask transmission data, but constantly
When receiving communication disruption message, the last layer of equipment just will be considered that it is isolated.Or isolated equipment starts specified letter
The regrouping process or execution association process in road.
The step of association process, is as follows：
1）The last layer of equipment sends association request to media access control sublayer, it is desirable that PHY the and MAC PIB that configuration association needs belong to
Property value, including：PhyCurrentChannel, phyCurrentPage, macPANId, macCoordExtendedAddress or
macCoordShortAddress；
2）The media access control sublayer of equipment sends association request command to coordinator node；
3）The coordinator node for receiving request indicates that its media access control sublayer sends associated response order and gives request associated equipment,
Instruction association whether succeeds, if it is successful, will include in associated response order coordinator node be request equipment distribute shortly
Location；
4）The short address received is stored in macShortAddress by equipment.
The present invention is using the LTE terminal of registered LTE network by the PAN networks between LTE terminal to unregistered LTE nets
The LTE terminal of network forwards the adjacent cell frequency information from LTE network, can be with so as to the LTE terminal of unregistered LTE network
The whole bandwidth for whole LTE frequency bands that LTE terminal is supported need not be scanned, but directly searches LTE network adjacent cell frequency,
To greatly shorten entire search process, the purpose for quickly searching net is realized.
Present invention could apply to the first network selections of LTE terminal, greatly shorten the first network selection time.
So far, the present invention is described in detail.In order to avoid the design of the masking present invention, it is public that this field institute is not described
Some details known.Those skilled in the art as described above, can be appreciated how to implement technology disclosed herein completely
Scheme.
The method and device of the present invention may be achieved in many ways.For example, can by software, hardware, firmware or
Person's software, hardware, firmware any combinations come realize the present invention method and device.The step of for the method it is above-mentioned
Sequence is merely to illustrate, and the step of method of the invention is not limited to sequence described in detail above, unless with other sides
Formula illustrates.In addition, in some embodiments, the present invention can be also embodied as recording program in the recording medium, these
Program includes for realizing machine readable instructions according to the method for the present invention.Thus, the present invention also covers storage for executing
The recording medium of program according to the method for the present invention.
Although some specific embodiments of the present invention are described in detail by example, the skill of this field
Art personnel it should be understood that above example merely to illustrating, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above example.This hair
Bright range is defined by the following claims.
Claims (10)
1. a kind of method for searching network of LTE terminal, it is characterised in that：
PAN (personal area network) network of LTE terminal can be used around the LTE terminal scanning of unregistered LTE network, and applies being added thereto
One PAN network；
After being successfully joined a PAN network, ask to forward to the LTE terminal of the registered LTE network of any of PAN networks
LTE network adjacent cell frequency information, and receive the adjacent cell frequency of the LTE network of the LTE terminal transmission of registered LTE network
Rate information；
LTE network is searched for according to adjacent cell frequency information；
Wherein, by the self-organizing module construction PAN networks of two or more LTE terminals, PAN networks include PAN networks association
Point of adjustment and coordinator node, wherein the self-organizing module of the terminal of a registered LTE network serves as PAN network coordinators,
Network is added as coordinator node in the self-organizing module of other LTE terminals；
Wherein, when the self-organizing module scans PAN network channels of the LTE terminal of a registered LTE network, if do not sent out
Existing PAN network coordinators, or find PAN network coordinators but be rejected addition, then the registered LTE network LTE is whole
Self-organizing module one PAN network of startup at end establishes process；
Wherein, the process of establishing of self-organizing module one PAN network of startup of LTE terminal includes：
The self-organizing module scans PAN network channels of LTE terminal are to find an idle channel, for establishing new PAN networks；
Unique 16 PAN identifier in the idle channel is selected, for identifying the entire PAN networks that will be established；
Select a network address of unique 16 network address as PAN network coordinators in entire PAN networks；
Send the network discovery that beacon signal is used for other coordinator nodes.
2. the method for searching network of LTE terminal according to claim 1, it is characterised in that：
PAN networks are established and safeguarded to PAN network coordinators, and periodic broadcasting beacon frame is coordinator node in PAN networks and uncommon
It hopes the coordinator node that the network is added provide time synchronization benchmark, handles the addition request of coordinator node, receive and be added from new
The request of the coordinator node of PAN networks, and LTE network adjacent cell frequency information is sent to the coordinator node for sending out request.
3. the method for searching network of LTE terminal according to claim 1, it is characterised in that：
The coordinator node periodic broadcasting beacon frame of the LTE terminal of registered LTE network is coordinator node in PAN networks and uncommon
It hopes the coordinator node that the network is added provide time synchronization benchmark, receives the request from the new coordinator node that PAN networks are added,
And LTE network adjacent cell frequency information is sent to the coordinator node for sending out request.
4. the method for searching network of LTE terminal according to claim 3, it is characterised in that：
The self-organizing module of the LTE terminal of registered LTE network can take over current PAN network coordinators, alternatively, conduct
PAN network coordinators simultaneously establish another PAN network using different PAN identifiers.
5. the method for searching network of LTE terminal according to claim 1, it is characterised in that：
The beacon frame of PAN networks where the coordinator node of the LTE terminal of unregistered LTE network receives, and utilize beacon frame and PAN
The coordinator node of network, which is established, to be synchronized, and sends LTE network adjacent cell frequency information request message to the PAN nets in PAN networks
Network coordinator node or coordinator node receive the LTE network adjacent cell frequency letter that PAN network coordinators or coordinator node are sent
Breath.
6. a kind of LTE terminal, it is characterised in that：
Self-organizing module is configured at the PAN networks that can use LTE terminal around scanning, and applies being added thereto a PAN network,
Or create a new PAN network；
Adjacent cell frequency information management module is configured at after being successfully joined a PAN network, to any of PAN networks
The LTE terminal request forwarding LTE network adjacent cell frequency information of registered LTE network, and receive registered LTE network
The adjacent cell frequency information for the LTE network that LTE terminal is sent, or unregistered LTE network is received by self-organizing module
The request of LTE terminal, and requested LTE network adjacent cell frequency information is sent to requesting party by self-organizing module；
Adjacent cell frequency information memory module is configured at the adjacent cell frequency information of storage LTE network；
LET network search modules are configured at and search for LTE network according to adjacent cell frequency information；
Wherein, by the self-organizing module construction PAN networks of two or more LTE terminals, PAN networks include PAN networks association
Point of adjustment and coordinator node, wherein the self-organizing module of the terminal of a registered LTE network serves as PAN network coordinators,
Network is added as coordinator node in the self-organizing module of other LTE terminals；
Wherein, when the self-organizing module scans PAN network channels of the LTE terminal of a registered LTE network, if do not sent out
Existing PAN network coordinators, or find PAN network coordinators but be rejected addition, then the registered LTE network LTE is whole
Self-organizing module one PAN network of startup at end establishes process；
Wherein, the process of establishing of self-organizing module one PAN network of startup of LTE terminal includes：The self-organizing module of LTE terminal
PAN network channels are scanned to find an idle channel, for establishing new PAN networks；Selection one is in the idle channel
Unique 16 PAN identifiers, for identifying the entire PAN networks that will be established；Selection one is unique in entire PAN networks
Network address of 16 network address as PAN network coordinators；Send the net that beacon signal is used for other coordinator nodes
Network is found.
7. LTE terminal according to claim 6, it is characterised in that：
PAN networks are established and safeguarded to PAN network coordinators, and periodic broadcasting beacon frame is coordinator node in PAN networks and uncommon
It hopes the coordinator node that the network is added provide time synchronization benchmark, handles the addition request of coordinator node, receive and be added from new
The request of the coordinator node of PAN networks, and LTE network adjacent cell frequency information is sent to the coordinator node for sending out request.
8. LTE terminal according to claim 6, it is characterised in that：
The coordinator node periodic broadcasting beacon frame of the LTE terminal of registered LTE network is coordinator node in PAN networks and uncommon
It hopes the coordinator node that the network is added provide time synchronization benchmark, receives the request from the new coordinator node that PAN networks are added,
And LTE network adjacent cell frequency information is sent to the coordinator node for sending out request.
9. LTE terminal according to claim 8, it is characterised in that：
The self-organizing module of the LTE terminal of registered LTE network can take over current PAN network coordinators, alternatively, conduct
PAN network coordinators simultaneously establish another PAN network using different PAN identifiers.
10. LTE terminal according to claim 6, it is characterised in that：
The beacon frame of PAN networks where the coordinator node of the LTE terminal of unregistered LTE network receives, and utilize beacon frame and PAN
The coordinator node of network, which is established, to be synchronized, and sends LTE network adjacent cell frequency information request message to the PAN nets in PAN networks
Network coordinator node or coordinator node receive the LTE network adjacent cell frequency letter that PAN network coordinators or coordinator node are sent
Breath.
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