CN105323805B - Network selecting method and the terminal for supporting heterogeneous network - Google Patents
Network selecting method and the terminal for supporting heterogeneous network Download PDFInfo
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Abstract
This disclosure relates to the terminal of a kind of network selecting method and support heterogeneous network.This method includes signal of the target terminal reception from first network supported heterogeneous network and be registered to first network；Judged whether to need to be added PAN network according to the signal strength of the first network received, if necessary to which PAN network is added, it then identifies TAI list according to the tracing area of target terminal to judge whether that PAN network can be added, PAN network includes being registered to first network and the terminal as PAN network coordinator；If PAN network has been added and has left the overlay area of first network, the terminal agent as PAN network coordinator is notified to receive the system message and paging message for being sent to target terminal；The second network is reregistered with when detecting target terminal removal PAN network and entering in the coverage area of the second network.The disclosure avoids ping-pong reselection problem of the terminal between heterogeneous network.
Description
Technical field
This disclosure relates to which wireless network is particularly related to the terminal of a kind of network selecting method and support heterogeneous network.
Background technique
When telecom operators are no longer satisfied in a kind of radio network technique would generally portion when business development needs
A kind of new radio network technique is affixed one's name to, for example, development, development from 3G to 4G of the 2G to 3G.Under normal conditions, in deployment a new generation
At the initial stage of network technology, for currently used wireless access network after undergoing the long-term network optimization, the network coverage is very high,
It may be considered planar covering, and the coverage rate of new generation of wireless access net compares lower, can be regarded as dotted covering, and
It and for a comparatively long period of time all can be such.Therefore, when the mobile terminal disengaging new generation of wireless being in idle condition connects
When the domain of network coverage, the operation of network reselection is needed to be implemented.When mobile terminal frequently passes in and out the intensive new generation of wireless of user
When access net overlay area, for example, the CBD of working time, scientific and technological park, the megastore of non-working time, theatrical performances field
Institute, stadiums and gymnasiums etc., a large amount of user, which passes in and out the same region simultaneously, can frequently occur network reselection, more seriously
A large amount of ping-pong reselection can occur, seriously affected the performance of telecommunication carrier networks system.
Telecom operation for 3G operation CDMA (Code Division Multiple Access, CDMA) network
For quotient, when with dotted deployment LTE (Long Term Evolution, long term evolution) network, the LTE/ that is in idle condition
When passing in and out the LTE network area of coverage network reselection can occur for CDMA dual-mode terminal, if user is in LTE network coverage area boundaries
Move back and forth, LTE/CDMA dual-mode terminal will occur between cdma network and LTE network the problem of ping-pong reselection.
WCDMA (Wideband Code Division Multiple Access, wideband code division multiple access) is runed for 3G
For the telecom operators of network, when with dotted deployment LTE network, the LTE/WCDMA dual-mode terminal being in idle condition exists
Network reselection can occur when passing in and out the LTE network area of coverage, it, will if user moves back and forth in LTE network coverage area boundaries
Generation LTE/WCDMA dual-mode terminal is between WCDMA network and LTE network the problem of ping-pong.
In order to solve ping-pong, ISR (Idle Mode Signaling Reduction, free time are proposed in 3GPP specification
Mode signaling reduction), but ISR mechanism is extremely complex, and LTE terminal needs are double to be registered to two core nets: MME (Mobile
Management Entity, mobility management entity) and SGSN (Serving GPRS Supporting Node, GPRS service
Supporting node), two core nets MME and SGSN are registered to HSS (Home Subscriber Server, home subscriber service
Device), two core net nodes mutually save the node address of other side, simultaneously in E-UTRAN (Evolved under idle state
UTRAN, the universal terrestrial access network of evolution) and UTRAN (Universal Terrestrial Radio Access
Network, universal terrestrial access network)/GERAN (GSM/EDGE Radio Access Network, GSM/EDGE without
Line access) call terminal, terminal operating two periodically update timer, the update point to two core nets MME and SGSN
Not carry out.Therefore terminal must support the function when 3GPP only provides deployment of LTE network initial stage, and the network equipment can optional branch
It holds.It is understood that ping-pong problem does not obtain between LTE/WCDMA network and LTE/WCDMA dual-mode terminal
Very good solution.
TD-SCDMA (Time Division-Synchornization Code Division is runed for 3G
Multiple Access, TD SDMA) network telecom operators for, the ping-pong reselection problem and 3G that face
The telecom operators for runing cdma network are similar.
Summary of the invention
The disclosure proposes new technical solution in view of at least one of problem above.
The disclosure provides a kind of network selecting method in terms of one, and which obviate terminals between heterogeneous network
Ping-pong reselection problem.
The disclosure provides a kind of terminal for supporting heterogeneous network in its another aspect, and which obviate the terminals in heterogeneous network
Ping-pong reselection problem between network.
According to the disclosure, a kind of network selecting method is provided, comprising:
It supports heterogeneous network and is registered to signal of the target terminal reception from first network of first network；
Judged whether to need to be added PAN network according to the signal strength of the first network received, if necessary to which PAN is added
Network then identifies TAI list according to the tracing area of target terminal and judges whether that PAN network is added, and PAN network includes being registered to
First network and terminal as PAN network coordinator；
If PAN network has been added and has left the overlay area of first network, notify as PAN network coordinator
Terminal agent receives the system message and paging message for being sent to target terminal；
Detecting that target terminal removes PAN network and while entering in the coverage area of the second network reregisters with the
Two networks.
In some embodiments of the present disclosure, this method further include:
When the target terminal for being registered to the second network reenters the overlay area of first network, target terminal is infused again
Volume arrives first network.
In some embodiments of the present disclosure, judge whether to need to be added according to the signal strength of the first network received
PAN network then identifies TAI list according to the tracing area of target terminal and judges whether to be added if necessary to which PAN network is added
PAN network includes:
Judge whether the signal strength for the first network that target terminal receives is lower than PAN network and opens thresholding；
If opening thresholding lower than PAN network, available PAN network is scanned；
After scanning to available PAN network, by the TAI list of target terminal and the end as PAN network coordinator
The TAI list at end is compared；
If the TAI list of target terminal and the TAI list of the terminal as PAN network coordinator at least have one
Identical TAI, it is determined that the available PAN network is added in target terminal.
In some embodiments of the present disclosure, this method further include:
When target terminal is in the overlay area of PAN network and the second network simultaneously, if received as PAN network
When second network of the terminal forwarding of coordinator node is to the paging message of target terminal, target terminal executes network reselection and simultaneously registers
Into the second network to receive next paging message.
In some embodiments of the present disclosure, this method further include:
When target terminal is in the overlay area of PAN network and the second network simultaneously, if target terminal is actively initiated
Business, then target terminal executes network reselection and is registered in the second network.
In some embodiments of the present disclosure, this method further include:
If target terminal does not scan the PAN network that can be added, start the establishment process of PAN network；
After PAN network is successfully established, target terminal broadcasts its TAI list and beacon frame as PAN network coordinator.
In some embodiments of the present disclosure, this method further include:
If the signal strength for the first network that the terminal as PAN network coordinator receives is closed higher than PAN network
It closes thresholding or removes the overlay area of first network as the terminal of PAN network coordinator, then close the PAN network of the terminal
Coordinator node function, target terminal scan new PAN network and apply being added.
In some embodiments of the present disclosure, this method further include:
It is updated according to target terminal if cell reselection occurs for target terminal after a PAN network is added
TAI list determines whether to reside in current PAN network.
In some embodiments of the present disclosure, as its TAI list of the terminal broadcast of PAN network coordinator and beacon
Frame.
In some embodiments of the present disclosure, first network is LTE network, and the second network is X-CDMA network.
According to the disclosure, a kind of terminal for supporting heterogeneous network is additionally provided, comprising:
Judgment module, for judging whether to need to be added PAN network according to the signal strength of the first network received, such as
Fruit needs to be added PAN network, then whether judges the terminal according to the mark TAI list of the tracing area for the terminal for supporting heterogeneous network
PAN network is added, PAN network includes being registered to first network and the terminal as PAN network coordinator, supports heterogeneous network
Terminal be registered to first network；
Self-organizing module, if notifying conduct for PAN network to be added and has left the overlay area of first network
The terminal agent of PAN network coordinator receives the system message and paging message for being sent to and supporting heterogeneous network terminal；
Registration module, for detecting the terminal for supporting heterogeneous network removal PAN network and entering the second network
When in coverage area, the terminal for supporting heterogeneous network is reregistered with into the second network.
In some embodiments of the present disclosure, registration module is also used in the support heterogeneous network for being registered to the second network
Terminal reregisters with first network when reentering the overlay area of first network.
In some embodiments of the present disclosure, judgment module includes:
Signal strength judging unit is opened for judging whether the signal strength of the first network received is lower than PAN network
Thresholding is opened, if opening thresholding lower than PAN network, triggers the available PAN network of self-organizing module scans；
TAI list comparing unit, for will support the TAI of the terminal of heterogeneous network after scanning to available PAN network
List is compared with the TAI list of the terminal as PAN network coordinator；
Determination unit, if the TAI list of the terminal for supporting heterogeneous network and the end as PAN network coordinator
The TAI list at end at least has an identical TAI, it is determined that supports the terminal of heterogeneous network that the available PAN network is added.
In some embodiments of the present disclosure, registration module when support heterogeneous network terminal simultaneously be in PAN network and
When the overlay area of the second network, if receiving the second network of the terminal forwarding as PAN network coordinator to support
Network reselection is executed when the paging message of the terminal of heterogeneous network and is registered in the second network to receive next paging message.
In some embodiments of the present disclosure, registration module when support heterogeneous network terminal simultaneously be in PAN network and
When the overlay area of the second network, if the terminal of heterogeneous network is supported actively to initiate business, executes network reselection and register
Into the second network.
In some embodiments of the present disclosure, self-organizing module is not scanned and can be added in the terminal of support heterogeneous network
PAN network in the case where start PAN network establishment process, and after PAN network is successfully established be used as PAN network coordination section
Point broadcasts its TAI list and beacon frame.
In some embodiments of the present disclosure, also a PAN network is added in the terminal for supporting heterogeneous network in judgment module
Afterwards and occur to determine whether to reside in current PAN according to the updated TAI list of target terminal in the case where cell reselection
Network.
In some embodiments of the present disclosure, first network is LTE network, and the second network is X-CDMA network.
In the technical solution of the disclosure, the target terminal of heterogeneous network is being supported to leave first network into the second network
Coverage area but when still in the coverage area of PAN network, be not registered to the second network, but by being registered to first network
In PAN network coordinator proxy target terminal receive system message and paging message, only remove PAN net in target terminal
Network and while entering the coverage area of the second network is just registered to the second network.In this way when the user using target terminal is first
When network coverage boundary frequently passes in and out first network, it can prevent target terminal from net occurs between first network and the second network
The ping-pong reselection of network, and first network is remained registered with as much as possible.
Detailed description of the invention
Attached drawing described herein is used to provide further understanding of the disclosure, constitutes part of this application.Attached
In figure:
Fig. 1 is the flow diagram of the network selecting method of an embodiment of the present disclosure.
Fig. 2 is the network reselection schematic diagram of an embodiment of the present disclosure.
Fig. 3 is the system architecture schematic diagram of one example of the disclosure.
Fig. 4 is the PAN network coordinator of one example of the disclosure and the structural schematic diagram of target terminal.
Fig. 5 is the structural schematic diagram of the terminal of the support heterogeneous network of an embodiment of the present disclosure.
Specific embodiment
The disclosure is described below with reference to accompanying drawings.It should be noted that description below is only explanatory in itself and shows
Example property, never as to the disclosure and its application or any restrictions used.Unless stated otherwise, otherwise, implementing
Component described in example and the positioned opposite and numerical expression and numerical value of step are not intended to limit the scope of the present disclosure.In addition,
Technology well known by persons skilled in the art, method and apparatus may not be discussed in detail, but be meant as in appropriate circumstances
Part of specification.
For the user of the mobile terminal under being in idle condition, above-mentioned ping-pong reselection process pair existing in the prior art
User not it is found that thus telecom operators want to using a kind of method so that the mobile terminal being in idle condition exists
Pass in and out first network overlay area boundary when, can without carrying out or reduce execute network reselection process, to reduce
Network device processing network reselection process and bring load.
Fig. 1 is the flow diagram of the network selecting method of an embodiment of the present disclosure.
As shown in Figure 1, the embodiment may comprise steps of:
S102 supports heterogeneous network and is registered to signal of the target terminal reception from first network of first network；
Wherein, target terminal is the bimodulus or multimode terminal for supporting heterogeneous network.The heterogeneous network includes at least the first net
Network and the second network.The signal from first network is received after target terminal is registered to first network.
S104 judges whether to need to be added PAN network according to the signal strength of the first network received, if necessary to add
Enter PAN network, then TAI (Tracking Area Identity, tracing area mark is identified according to the tracing area of target terminal
Know) list judges whether that PAN (Personal Area Network, personal area network) network is added, PAN network includes being registered to the
One network and terminal as PAN network coordinator；
Wherein, target terminal is in the adjacent edges for being gradually moved into first network, it is received from first network
Signal strength gradually weakens, and is judged whether to scan PAN net according to the signal strength from first network that target terminal receives
Network, if PAN network is arrived in scanning, the TAI of the TAI list further according to target terminal and the terminal as PAN network coordinator
List judges whether target terminal is added the PAN network.
S106 is notified if PAN network has been added and has left the overlay area of first network as the PAN network coordination
The terminal agent of node receives the system message and paging message for being sent to target terminal, in this way when target terminal is in PAN net
When network overlay area, although target terminal is moved to the second network's coverage area, but still without network switching, to avoid hair
The ping-pong reselection of raw network；
Specifically, since target terminal has been moved off first network, but when it is still in PAN network's coverage area, therefore,
Target terminal can receive system message by the help of the PAN network cooperating node in PAN network and paging message, the system disappear
Breath and paging message are broadcasted by first network, can be the broadcast message and paging message in first network, or the
The broadcast message and paging message that one the second network of network agent is sent.Wherein, PAN network coordinator is registered to first network
It is interior.
S108 is infused again when detecting target terminal removal PAN network and entering in the coverage area of the second network
Volume is to the second network.
In this embodiment, the target terminal of heterogeneous network is being supported to leave the covering model that first network enters the second network
It encloses but when still in the coverage area of PAN network, is not registered to the second network, but the PAN net by being registered in first network
Network coordinator node proxy target terminal receives system message and paging message, only removes PAN network in target terminal and enters
To the second network coverage area when be just registered to the second network.In this way when the user using target terminal covers in first network
When boundary frequently passes in and out first network, it can prevent target terminal from the table tennis of network occurring between first network and the second network
Gravity treatment, and first network is remained registered with as much as possible.
If target terminal does not scan the PAN network that can be added, start the establishment process of PAN network；In PAN net
After network is successfully established, target terminal broadcasts its TAI list and beacon frame as PAN network coordinator.
When the target terminal for being registered to the second network reenters the overlay area of first network, target terminal is infused again
Volume arrives first network, target terminal priority of registration can be made into first network in this way.
Judged whether to need to be added PAN network according to the signal strength of the first network received, if necessary to which PAN is added
Network then identifies TAI list according to the tracing area of target terminal and judges whether that the step of PAN network is added may include:
Judge whether the signal strength for the first network that target terminal receives is lower than PAN network and opens thresholding, that is, target
Whether terminal is mobile from the central area of first network to fringe region, and is moved to the overlay area of PAN network；If low
Thresholding is opened in PAN network, then scans available PAN network；After scanning to available PAN network, by the TAI of target terminal
List is compared with the TAI list of the terminal as PAN network coordinator；If the TAI list and conduct of target terminal
The TAI list of the terminal of PAN network coordinator at least has an identical TAI, then shows PAN network coordinator and mesh
Mark terminal at least contains an identical tracking cell, and then can determine that the available PAN network is added in target terminal.
Wherein, TAI list indicates to can receive network side transmission when the terminal is in TAI list institute's column region
Paging message and broadcast message, TAI list are indicated in the form of cell ID, wherein may include one or more cell ID, TAI is
Cell ID.
When target terminal is in the overlay area of PAN network and the second network simultaneously, if received as PAN network
When second network of the terminal forwarding of coordinator node is to the paging message of target terminal, target terminal executes network reselection and simultaneously registers
Into the second network to receive next paging message.
When target terminal is in the overlay area of PAN network and the second network simultaneously, if target terminal is actively initiated
Business, then target terminal executes network reselection and is registered in the second network.
If the signal strength for the first network that the terminal as PAN network coordinator receives is closed higher than PAN network
Close thresholding, that is, show that PAN network coordinator is just leaving the fringe region of first network certainly, or as PAN network coordinator
Terminal remove the overlay area of first network, then close the PAN network coordinator function of the terminal, target terminal scanning is new
PAN network and apply being added.
After a PAN network is added, if cell reselection occurs for target terminal, show that its TAI list will become
Change, at this point it is possible to which determining whether to reside in current PAN network according to the updated TAI list of target terminal specifically can
The updated TAI list of target terminal to be compared with the TAI list of the terminal as PAN network coordinator, if
At least there is an identical TAI in the two, then target terminal still resides in current PAN network, and otherwise, target terminal needs are swept
Retouch new PAN network.
As its TAI list of the terminal broadcast of PAN network coordinator and beacon frame, so that other terminals determine whether to add
Enter PAN network.
Above-mentioned first network can be LTE network, and the second network can be X-CDMA network, for example, CDMA, WCDMA,
TD-SCDMA。
Next, the technical solution of the disclosure is described in detail by taking LTE/X-CDMA dual-mode terminal as an example.
Fig. 3 is the system architecture schematic diagram of one example of the disclosure.
Fig. 4 is the PAN network coordinator of one example of the disclosure and the structural schematic diagram of target terminal.
As shown in Figure 3 and Figure 4, using insertion LTE/X-CDMA (wherein, X-CDMA can be CDMA, TD-SCDMA,
Any one in WCDMA, the wireless access network of WCDMA are UTRAN/GERAN) the self-organizing module of dual-mode terminal it is mobile eventually
Self-organizing network is constructed between end, when LTE/X-CDMA dual-mode terminal (hereinafter referred to as: target terminal) be registered to LTE network and
Positioned at network's coverage area near border, at this point, if target terminal received signal level is opened lower than the PAN network of setting
Then PAN network is added by the self-organizing module in insertion target terminal in dynamic thresholding, and the PAN network is by being equally registered to LTE net
The LTE/X-CDMA dual-mode terminal that network and its TAI list and the TAI list of target terminal have TAI to be overlapped (is also possible to LTE end
Hold or have other multimode terminals of LTE network function) in self-organizing module building.It is covered when target terminal is moved to LTE network
Other than cover area boundary, within the effective coverage range of PAN network when, as shown in Fig. 2, target terminal notice be still registered to
The PAN network coordinator of the mobile terminal of LTE network acts on behalf of reception system information by PAN network coordinator and paging disappears
It ceases and is transmitted to the target terminal, there is no changes for the context for the target terminal that LTE network saves during this period, unless mesh
Mark terminal or network side periodically update timer expiry；When target terminal is moved to other than LTE network coverage area boundaries,
Within PAN network extended area, but far from PAN network coordinator so that target terminal scans new when being detached from PAN network
PAN network simultaneously is applied being added, and the TAI list when TAI list of target terminal is using addition previous PAN network is added new
After PAN network, system information and paging message are received by new PAN network coordinator agency and are transmitted to target terminal,
There is no changes for the context for the target terminal that LTE network saves during this, unless the periodicity of target terminal or network side
Update timer expiry；When target terminal is moved to other than LTE network coverage area boundaries, and the PAN net that can be added
Network or when being located at except PAN network extended area, as shown in Fig. 2, leaving PAN network and being moved to X-CDMA net when target terminal
The network reselection of first time is executed when in the coverage area of network；When the target terminal for being registered to X-CDMA network reenters LTE
When network's coverage area, just network reselection process can be executed for preferred network because of LTE network.Therefore, it efficiently avoids
LTE/X-CDMA dual-mode terminal is in other than LTE network coverage area boundaries, it is mobile within PAN network extended area during according to
The network reselection that existing specification should occur.
The self-organizing module that PAN network is embedded in the LTE/X-CDMA dual-mode terminal by having registered LTE network is sent out automatically
Play building.The LTE/X-CDMA dual-mode terminal that LTE network has been registered when one covers boundary close to LTE network, if received
Signal level is lower than the PAN network startup thresholding of setting, then the self-organizing module starting scanning PAN network channel being embedded in, if
Performance in one's power in the range of do not have to find the PAN network coordinator that is at least partly overlapped of TAI, or discovery PAN network association
Point of adjustment but it is rejected addition, then the self-organizing module of the terminal starts the establishment process of a PAN network.Firstly, LTE terminal
Self-organizing module scans PAN network channel to find an idle channel, for establishing new PAN network.Then, one is selected
A 16 PAN identifiers unique in the idle channel, for identifying the entire PAN network that will be established.Then, one is selected
Network address of a 16 network address unique in entire PAN network as PAN network coordinator.Finally, sending letter
The network discovery that signal is used for other coordinator nodes is marked, the TAI list of the terminal is sent, so that other LTE/X-CDMA bimodulus are whole
Whether the PAN network that end judges that selection is added is suitable.After constructing PAN network, the self-organizing of the LTE/X-CDMA dual-mode terminal
Module receives the PAN network that its foundation is added in new self-organizing module (that is, coordinator node).
When the number of nodes of PAN network reaches maximum-norm (theoretical value is 255), if PAN network coordinator connects
A new addition request is received, the request is responded and states that its addition can not be received.
PAN network coordinator provides time synchronization base by periodic broadcasting beacon frame for the coordinator node in PAN network
Standard, while the TAI list for broadcasting place terminal is added for the applicable PAN network of target terminal selection.
If another PAN network coordinator scans the channel that the PAN network coordinator uses, PAN network 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 will lead to and interfere with each other.
If the LTE/X-CDMA dual-mode terminal where PAN network coordinator moves out LTE network coverage area boundaries,
PAN network coordinator closes PAN network coordinator function, and other PAN networks are added as coordinator node application；Or
In LTE network overlay area but apart from boundary farther out, at this point, if PAN network coordinator received signal level is higher than
The PAN network of setting closes thresholding, then PAN network coordinator closes its PAN network function, exits PAN network.If PAN
LTE/X-CDMA dual-mode terminal where network coordinator executes TAI and updates, then PAN network coordinator is new by what is changed
TAI list be broadcast in PAN network include target terminal all coordinator nodes, in PAN network includes target terminal
The TAI list of oneself and the TAI list of PAN network coordinator are compared by coordinator node, if two TAI lists do not have
The TAI of one coincidence, then target terminal will be disengaged from the PAN network coordinator, scans and qualified new PAN net is added
Network coordinator node.
When target terminal is located at LTE network covering near border, if target terminal received signal level is lower than
The PAN network startup thresholding of setting, then the self-organizing module starting scanning PAN network channel being embedded in, scanning is arrived qualified
After PAN network, target terminal starting association process is simultaneously added the PAN network (association process is IEEE 802.15.4 agreement rule
Model when PAN network is added in each target terminal equipment, requires starting association process).
When target terminal LTE network covering boundary in be added a PAN network after cell reselection occurs, need again into
Row TAI list is compared, if none TAI is overlapped, target terminal needs to be detached from current PAN network, rescans suitable
PAN network.
When target terminal moves out LTE network coverage area boundaries, sending to PAN network coordinator includes P-RNTI
The request of (Paging Radio Network Temporary Identifier, pager wireless net network temporary identifier) value, by
PAN network coordinator agency receives the system information of LTE network and is sent to the paging message of target terminal, and passes through
PAN forwarded gives it, until target terminal leaves the effective range of PAN network coordinator during continuing to move to, or
Because occurring, TAI updates the agency for being not suitable anymore for as system information and paging to person PAN network coordinator or PAN network is assisted
What point of adjustment closed PAN network or target terminal periodically updates timer expiry.During this period, LTE network still saves
The context of target terminal, paging message are still sent to the TAI list that target terminal is finally registered.
When the target terminal in PAN network extended area receives paging message, which is not done directly
It responds out, but is immediately performed network reselection and is registered to X-CDMA network, receive next paging message from X-CDMA network.
When the target terminal in PAN network extended area needs to send data, it is immediately performed X-CDMA network
Gravity treatment.
Next, being illustrated to the process for being added thereto a PAN network.
Pass through the available LTE terminal PAN network in scan channel search performance in one's power range.Starting association process is simultaneously added
(association process refers to IEEE 802.15.4 protocol specification to the PAN network, each coordinator node needs to start when PAN network is added
Association process).When losing synchronous with PAN network, it is (isolated to recombinate that the isolated regrouping process of starting rejoins the PAN network
Journey refers to IEEE 802.15.4 protocol specification).Upper one layer when an equipment is requested to send data to media access control sublayer, but constantly
When receiving communication disruption message, upper one layer of equipment just will be considered that it is isolated.The isolated specified letter of equipment or starting
The regrouping process or execution association process in road.
The step of association process is as follows: (1) upper one layer of equipment sends association request to media access control sublayer, it is desirable that configuration association
PHY the and MAC PIB attribute value needed, comprising: phyCurrentChannel, phyCurrentPage, macPANId,
MacCoordExtendedAddress or macCoordShortAddress；(2) media access control sublayer of equipment is sent to coordinator node
Association request command；(3) coordinator node for receiving request indicates that the transmission associated response order of its media access control sublayer is associated to requesting
Whether equipment, instruction association succeed, if it succeeds, will include the equipment distribution that coordinator node is request in associated response order
Short address；(4) short address received is stored in macShortAddress by equipment.
It will appreciated by the skilled person that realizing that the whole of above method embodiment and part steps can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can store in a compute device readable storage medium, the journey
Sequence when being executed, executes step including the steps of the foregoing method embodiments, and storage medium above-mentioned may include ROM, RAM, magnetic disk
With the various media that can store program code such as CD.
Fig. 5 is the structural schematic diagram of the terminal of the support heterogeneous network of an embodiment of the present disclosure.
As shown in figure 5, the terminal in the embodiment may include signal receiving module 502, judgment module 504, self-organizing
Module 506 and registration module 508.Wherein,
Signal receiving module 502, for receiving the signal from first network；
Judgment module 504, for judging whether to need to be added PAN net according to the signal strength of the first network received
Network then judges the end according to the mark TAI list of the tracing area for the terminal for supporting heterogeneous network if necessary to which PAN network is added
Whether end is added PAN network, and PAN network includes being registered to first network and the terminal as PAN network coordinator, supports different
The terminal of network forming network is registered to first network；
Self-organizing module 506, if notifying to make for PAN network to be added and has left the overlay area of first network
The system message and paging message of support heterogeneous network terminal are sent to for the terminal agent reception of PAN network coordinator；
Registration module 508, for detecting the terminal for supporting heterogeneous network removal PAN network and entering the second network
Coverage area in when, the terminal for supporting heterogeneous network is reregistered with into the second network.
In this embodiment, the target terminal of heterogeneous network is being supported to leave the covering model that first network enters the second network
It encloses but when still in the coverage area of PAN network, is not registered to the second network, but the PAN net by being registered in first network
Network coordinator node proxy target terminal receives system message and paging message, only removes PAN network in target terminal and enters
To the second network coverage area when be just registered to the second network.In this way when the user using target terminal covers in first network
When boundary frequently passes in and out first network, it can prevent target terminal from the table tennis of network occurring between first network and the second network
Gravity treatment, and first network is remained registered with as much as possible.
In an example, registration module be also used to the support heterogeneous network for being registered to the second network terminal again into
First network is reregistered with when entering the overlay area of first network.
In another example, judgment module may include signal strength judging unit, TAI list comparing unit and determine single
Member.Wherein,
Signal strength judging unit is opened for judging whether the signal strength of the first network received is lower than PAN network
Thresholding is opened, if opening thresholding lower than PAN network, triggers the available PAN network of self-organizing module scans；TAI list is compared
Unit, for the TAI list of the terminal of heterogeneous network will be supported to assist with as PAN network after scanning to available PAN network
The TAI list of the terminal of point of adjustment is compared；Determination unit, if the TAI list of the terminal for supporting heterogeneous network with
The TAI list of terminal as PAN network coordinator at least has an identical TAI, it is determined that supports heterogeneous network
The available PAN network is added in terminal.
In a further example, registration module is when supporting the terminal of heterogeneous network to be in PAN network and the second network simultaneously
When overlay area, if receiving the second network of the terminal forwarding as PAN network coordinator to support heterogeneous network
Network reselection is executed when the paging message of terminal and is registered in the second network to receive next paging message.
Registration module is when supporting the terminal of heterogeneous network to be in the overlay area of PAN network and the second network simultaneously, such as
Fruit supports the terminal of heterogeneous network actively to initiate business, then executes network reselection and be registered in the second network.
Self-organizing module starts in the case where supporting the terminal of heterogeneous network not scan the PAN network that can be added
The establishment process of PAN network, and its TAI list and beacon are broadcasted as PAN network coordinator after PAN network is successfully established
Frame.
Further, also after a PAN network is added in the terminal for supporting heterogeneous network and cell occurs for judgment module
Determine whether to reside in current PAN network according to the updated TAI list of target terminal in the case where gravity treatment.
Wherein, first network can be LTE network, and the second network can be X-CDMA network, for example, CDMA, WCDMA,
TD-SCDMA。
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with its
The difference of his embodiment, identical and similar part can be with cross-reference between each embodiment.For Installation practice
For, since it is basically similar to the method embodiment, so being described relatively simple, related place may refer to embodiment of the method
Partial explanation.
Although describing the disclosure with reference to exemplary embodiment, it should be appreciated that the present disclosure is not limited to above-mentioned exemplary
Embodiment.It will be obvious to those skilled in the art that can be modified under conditions of without departing substantially from the scope of the present disclosure and spirit
Exemplary embodiments mentioned above.The range of the attached claims should be endowed widest explanation, such to repair comprising all
Change and equivalent structure and function.
Claims (18)
1. a kind of network selecting method characterized by comprising
It supports heterogeneous network and is registered to signal of the target terminal reception from first network of first network；
Judged whether to need to be added PAN network according to the signal strength of the first network received, if necessary to which PAN net is added
Network then identifies TAI list according to the tracing area of target terminal and judges whether that PAN network is added, and the PAN network includes registration
Terminal to first network and as PAN network coordinator；
If PAN network has been added and has left the overlay area of first network, the terminal as PAN network coordinator is notified
Agency receives the system message and paging message for being sent to target terminal；
The second net is reregistered with when detecting target terminal removal PAN network and entering in the coverage area of the second network
Network.
2. network selecting method according to claim 1, which is characterized in that the method also includes:
When the target terminal for being registered to the second network reenters the overlay area of first network, target terminal is reregistered with
First network.
3. network selecting method according to claim 1, which is characterized in that the signal according to the first network received is strong
Degree judges whether to need to be added PAN network, if necessary to which PAN network is added, then identifies TAI according to the tracing area of target terminal
List judges whether that PAN network, which is added, includes:
Judge whether the signal strength for the first network that target terminal receives is lower than PAN network and opens thresholding；
If opening thresholding lower than PAN network, available PAN network is scanned；
After scanning to available PAN network, by the TAI list of target terminal and the terminal as PAN network coordinator
TAI list is compared；
If the TAI list of target terminal and the TAI list of the terminal as PAN network coordinator at least have one it is identical
TAI, it is determined that the available PAN network is added in target terminal.
4. network selecting method according to claim 1, which is characterized in that the method also includes:
When target terminal is in the overlay area of PAN network and the second network simultaneously, if received as the PAN network coordination
When second network of the terminal forwarding of node is to the paging message of target terminal, target terminal executes network reselection and is registered to the
To receive next paging message in two networks.
5. network selecting method according to claim 1, which is characterized in that the method also includes:
When target terminal is in the overlay area of PAN network and the second network simultaneously, if target terminal actively initiates business,
Then target terminal executes network reselection and is registered in the second network.
6. network selecting method according to claim 1, which is characterized in that the method also includes:
If target terminal does not scan the PAN network that can be added, start the establishment process of PAN network；
After PAN network is successfully established, target terminal broadcasts its TAI list and beacon frame as PAN network coordinator.
7. network selecting method according to claim 1, which is characterized in that the method also includes:
If the signal strength for the first network that the terminal as PAN network coordinator receives, which is higher than PAN network, closes door
Limit or the overlay area that first network is removed as the terminal of PAN network coordinator, then close the PAN network coordination of the terminal
Nodal function, target terminal scan new PAN network and apply being added.
8. network selecting method according to claim 1, which is characterized in that the method also includes:
After a PAN network is added, if cell reselection occurs for target terminal, arranged according to the updated TAI of target terminal
Table determines whether to reside in current PAN network.
9. network selecting method according to claim 1, which is characterized in that the terminal as PAN network coordinator is wide
Broadcast its TAI list and beacon frame.
10. network selecting method according to claim 1, which is characterized in that the first network is LTE network, described
Second network is X-CDMA network.
11. a kind of terminal for supporting heterogeneous network characterized by comprising
Signal receiving module, for receiving the signal from first network；
Judgment module, for judging whether to need to be added PAN network according to the signal strength of the first network received, if needed
PAN network is added, then judges whether the terminal is added according to the mark TAI list of the tracing area for the terminal for supporting heterogeneous network
PAN network, the PAN network include being registered to first network and the terminal as PAN network coordinator, the support isomery
The terminal of network is registered to first network；
Self-organizing module, if notified for PAN network to be added and has left the overlay area of first network as PAN net
The terminal agent of network coordinator node receives the system message and paging message for being sent to and supporting heterogeneous network terminal；
Registration module, in the terminal removal PAN network for detecting support heterogeneous network and the covering for entering the second network
When in range, the terminal for supporting heterogeneous network is reregistered with into the second network.
12. the terminal according to claim 11 for supporting heterogeneous network, which is characterized in that the registration module is also used to
It is registered to when the terminal of the support heterogeneous network of the second network reenters the overlay area of first network and reregisters with first
Network.
13. the terminal according to claim 11 for supporting heterogeneous network, which is characterized in that the judgment module includes:
Signal strength judging unit opens door for judging whether the signal strength of the first network received is lower than PAN network
Limit triggers the available PAN network of self-organizing module scans if opening thresholding lower than PAN network；
TAI list comparing unit, for will support the TAI list of the terminal of heterogeneous network after scanning to available PAN network
It is compared with the TAI list of the terminal as PAN network coordinator；
Determination unit, if the TAI list of the terminal for supporting heterogeneous network and the terminal as PAN network coordinator
TAI list at least has an identical TAI, it is determined that supports the terminal of heterogeneous network that the available PAN network is added.
14. the terminal according to claim 11 for supporting heterogeneous network, which is characterized in that the registration module is different when supporting
When the terminal of network forming network is in the overlay area of PAN network and the second network simultaneously, if received as PAN network coordination section
Network reselection is executed when second network of the terminal forwarding of point is to the paging message of the terminal for supporting heterogeneous network and is registered to the
To receive next paging message in two networks.
15. the terminal according to claim 11 for supporting heterogeneous network, which is characterized in that the registration module is different when supporting
When the terminal of network forming network is in the overlay area of PAN network and the second network simultaneously, if supporting the terminal of heterogeneous network actively
Initiation business then executes network reselection and is registered in the second network.
16. the terminal according to claim 11 for supporting heterogeneous network, which is characterized in that the self-organizing module is being supported
The terminal of heterogeneous network starts the establishment process of PAN network in the case where not scanning the PAN network that can be added, and in PAN
Network is used as PAN network coordinator to broadcast its TAI list and beacon frame after being successfully established.
17. the terminal according to claim 11 for supporting heterogeneous network, which is characterized in that the judgment module is also being supported
The terminal of heterogeneous network is added after a PAN network and occurs updated according to target terminal in the case where cell reselection
TAI list determines whether to reside in current PAN network.
18. the terminal according to claim 11 for supporting heterogeneous network, which is characterized in that the first network is LTE net
Network, second network are X-CDMA network.
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| CN1659902A (en) * | 2002-06-03 | 2005-08-24 | 美商内数位科技公司 | Personal lan interconnecting device |
| CN101965030A (en) * | 2009-07-24 | 2011-02-02 | 财团法人资讯工业策进会 | Mobile node, WiMAX base station, Wi-Fi access point and transfer method |
| CN102111827A (en) * | 2011-02-28 | 2011-06-29 | 北京邮电大学 | Switching control system and method in terminal collaboration of PAN |
| CN102958127A (en) * | 2011-08-10 | 2013-03-06 | 宏达国际电子股份有限公司 | Apparatuses and methods for handovers between heterogeneous networks |
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| CN1659902A (en) * | 2002-06-03 | 2005-08-24 | 美商内数位科技公司 | Personal lan interconnecting device |
| CN101965030A (en) * | 2009-07-24 | 2011-02-02 | 财团法人资讯工业策进会 | Mobile node, WiMAX base station, Wi-Fi access point and transfer method |
| CN102111827A (en) * | 2011-02-28 | 2011-06-29 | 北京邮电大学 | Switching control system and method in terminal collaboration of PAN |
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