CN103327575B - Communication equipment and wireless communications method - Google Patents
Communication equipment and wireless communications method Download PDFInfo
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- CN103327575B CN103327575B CN201310274393.0A CN201310274393A CN103327575B CN 103327575 B CN103327575 B CN 103327575B CN 201310274393 A CN201310274393 A CN 201310274393A CN 103327575 B CN103327575 B CN 103327575B
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Abstract
The invention provides a kind of communication equipment, including: data processing module, generate initial network entry message frame, described initial network entry message frame includes at least destination address, described destination address is multicast address, and described multicast address is the unique address of unified distribution corresponding to the recipient of described initial network entry message frame；Data interaction module, sends described initial network entry message frame.The invention allows for wireless communications method.Pass through technical scheme, can make in the communication equipment active scan process when performing network switching, the transmission target of message frame of making as much as possible to call request is the most accurate, thus avoid blindly sending the electricity waste caused, and it is simultaneously received too much response message frame and the message collision that causes.
Description
Technical field
The present invention relates to mobile communication technology field, in particular to communication equipment and radio communication
Method.
Background technology
Interworking between wlan network and 3GPP network has become a hot topic
Research direction, the most existing 802.11u standard formulation ANQP(Access
Network Query Protocol, access network vlan query protocol VLAN) agreement come regulation wlan network and
Interworking mechanism between 3GPP network.
STA(terminal) process that switches to wlan network from 3GPP network specifically includes that STA
Scanning BSS(Basis Service Set, Basic Service Set), this process is longer, because
The principle of wlan network is exactly first to intercept to send afterwards, so first the process of STA scanning is passive
Scanning, i.e. intercepts AP(Access Point, access point) beacon (Beacon) frame broadcasted, and
This process possible is carried out in 13 channels；If AP can not be listened in drive sweep,
Then transmission probe requests thereby (Probe request) frame actively, performs active scan.In active scan
During, STA send probe request be broadcast message frame, and in this frame band on one lead to
Join symbol, i.e. Wild SSID, represent that all AP receiving this Probe request can reply
Respond to STA.
But, on the one hand, in above-mentioned drive sweep and active scan, the scanning carried out is all
Blindly, because STA not knows that having AP in which channel exists, thus the most unfavorable
In saving power for terminal, there is the time wasting switching；On the other hand, in active scan process, although
There is AP to be responded, but the SSID that carries of probe request sent due to STA is wildcard
Symbol, so may cause STA to receive the response signaling from a lot of AP, the probability of conflict occur
It is greatly increased.
Accordingly, it would be desirable to a kind of new technical scheme, communication equipment can be made when performing network switching
In active scan process, the transmission target of the message frame that makes as much as possible to call request is the most accurate, thus keeps away
Exempt from blindly to send the electricity waste caused, and be simultaneously received too much response message frame and cause
Message collision.
Summary of the invention
The present invention is based on the problems referred to above, it is proposed that a kind of new technical scheme, and communication can be made to set
In the standby active scan process when performing network switching, the transmission of the message frame that makes as much as possible to call request
Target is the most accurate, thus avoids blindly sending the electricity waste caused, and is simultaneously received too much
Response message frame and the message collision that causes.
In view of this, the present invention proposes a kind of communication equipment, including: data processing module, generate
Initial network entry message frame, described initial network entry message frame includes at least destination address, described destination address
For multicast address, described multicast address is that unification corresponding to the recipient of described initial network entry message frame divides
The unique address joined；Data interaction module, sends described initial network entry message frame.
In this technical scheme, communication equipment can be mobile phone or flat board, and data processing module is permissible
Being the chip module that in communication equipment, data process, data interaction module is then equivalent to signal transmitting and receiving dress
Put and antenna etc..Communication equipment can be already under certain network, is such as in 3GPP net
Under network, before sending initial network entry message frame, it is desirable to switch to another network from 3GPP network
In, such as wlan network.Specifically, under such as communication equipment is currently at 3GPP network
Certain serving macro base station, then all in multicast address can be the coverage of this serving macro base station or
The address that multiple access points are corresponding.By the destination address of initial network entry message frame being set to multicast ground
Location, thus both solved cannot determine near the problem that whether exists, there is which access point, it is to avoid
Blindly scanning causes the electricity of communication equipment to waste, again can be by reducing response range as much as possible
Avoid blindly sending broadcast message frame and being likely to be received substantial amounts of response message frame, it is to avoid thus produce
Raw conflict, thus be conducive to shortening the network switching time of this communication equipment.
In technique scheme, it is preferable that described initial network entry message frame is probe request, cuts
Change request message frame or Fast Transition request message frame.
In this technical scheme, if communication equipment is currently at a certain network, such as 3GPP network
In, switch over to wlan network, the access under obtaining 3GPP macro base station institute coverage
On the premise of the multicast address of point (AP), probe request, handover request message frame can be sent
Or Fast Transition request message frame, wherein the destination address of these frames is the multicast ground being obtained ahead of time
Location.
In technique scheme, it is preferable that before generating described initial network entry message frame, described
Data interaction module also obtains the unique of unified distribution corresponding to the recipient of described initial network entry message frame
Address.
In this technical scheme, first communication equipment has been set up with a certain wireless network and has been associated, due to certain
Plant reason to associate with other wireless network foundation.Such as set up with 3GPP network when communication equipment
Association, before switching to wlan network, then can be by corresponding to this 3GPP network
The multicast address of all access points in its coverage of serving macro base station acquisition request, these access points
Multicast address be unique.Specifically, communication equipment can send multicast address to serving macro base station
Demand signalling, then serving macro base station is by returning response signaling, or by the way of data are transmitted,
To realize the feedback to multicast address.
In technique scheme, it is preferable that the described unified distribution that described data interaction module obtains
The medium access of recipient that unique address is described initial network entry message frame control (MAC)
Location.
In this technical scheme, by the actual address of multiple access points is combined, thus formed
Unique multicast address of these access points, in order to communication equipment specifies these access points as initially simultaneously
The recipient of networking message frame.Specifically, multicast address can as the form of MAC Address,
It is 48 bits, naturally it is also possible to for other number of bits length.
In technique scheme, it is preferable that the described unified distribution that described data interaction module obtains
Unique address be unified mechanism be the medium access control of recipient's distribution of described initial velocity networking message frame
Multicast address processed.
In this technical scheme, such as 3GPP network, the serving macro base station under this network and should
Access point in the coverage of serving macro base station is managed by unified mechanism, such as this unification
Mechanism can be OAM(Operation, Administration, Maintenance, and network management is tieed up
Protect entity), then this unifies mechanism's access point in the coverage to serving macro base station uniquely
After location is distributed unitedly, directly allocation result can be informed serving macro base station and serving macro base station
All of access point in coverage, thus the convenient switching to 3GPP network Yu WALN network
Management.
The present invention the most correspondingly proposes a kind of wireless communications method, including: generate initial network entry message
Frame, described initial network entry message frame includes at least destination address, and described destination address is multicast address,
Described multicast address be unified distribution corresponding to the recipient of described initial network entry message frame uniquely
Location；Send described initial network entry message frame.
In this technical scheme, this communication equipment, already under certain network, is such as in 3GPP
Under network, before sending initial network entry message frame, it is desirable to switch to another network from 3GPP network
In, such as wlan network.Communication equipment can be mobile phone or flat board.Specifically, the most logical
Letter equipment is currently at certain serving macro base station under 3GPP network, then multicast address can be these clothes
All in the coverage of business macro base station or the address that multiple access point is corresponding.By by initial network entry
The destination address of message frame is set to multicast address, thus both solved cannot determine near whether deposit
In, the problem that there is which access point, it is to avoid blindly scanning causes the electricity of communication equipment to waste, again
Can avoid blindly sending broadcast message frame by reducing response range as much as possible and may receive
To substantial amounts of response message frame, it is to avoid consequent conflict, thus be conducive to shortening this communication equipment
Network switching time.
In technique scheme, it is preferable that described initial network entry message frame is probe request, cuts
Change request message frame or Fast Transition request message frame.
In this technical scheme, if communication equipment is currently at a certain network, such as 3GPP network
In, switch over to wlan network, the access under obtaining 3GPP macro base station institute coverage
On the premise of the multicast address of point (AP), probe request, handover request message frame can be sent
Or Fast Transition request message frame, wherein the destination address of these frames is the multicast ground being obtained ahead of time
Location.
In technique scheme, it is preferable that before generating described initial network entry message frame, also wrap
Include: obtain the unique address of unified distribution corresponding to the recipient of described initial network entry message frame.
In this technical scheme, first communication equipment has been set up with a certain wireless network and has been associated, due to certain
Plant reason to associate with other wireless network foundation.Such as set up with 3GPP network when communication equipment
Association, before switching to wlan network, then can be by corresponding to this 3GPP network
The multicast address of all access points in its coverage of serving macro base station acquisition request, these access points
Multicast address be unique.Specifically, communication equipment can send multicast address to serving macro base station
Demand signalling, then serving macro base station is by returning response signaling, or by the way of data are transmitted,
To realize the feedback to multicast address.
In technique scheme, it is preferable that the unique address of described unified distribution is described initially to enter
The medium access of the recipient of network information frame controls (MAC) address.
In this technical scheme, by the actual address of multiple access points is combined, thus formed
Unique multicast address of these access points, in order to communication equipment specifies these access points as initially simultaneously
The recipient of networking message frame.Specifically, multicast address can as the form of MAC Address,
It is 48 bits, naturally it is also possible to for other number of bits length.
In technique scheme, it is preferable that the unique address of described unified distribution for unified mechanism is
The media access control multicast address of recipient's distribution of described initial velocity networking message frame.
In this technical scheme, such as 3GPP network, the serving macro base station under this network and should
Access point in the coverage of serving macro base station is managed by unified mechanism, such as this unification
Mechanism can be OAM, then this unifies mechanism's access point in the coverage to serving macro base station
Unique address distribute unitedly after, can directly allocation result be informed serving macro base station kimonos
All of access point in business macro base station coverage, thus conveniently to 3GPP network and WALN net
The handover management of network.
According to another aspect of the invention, it is also proposed that a kind of communication equipment, including data interaction mould
Block, reception initial network entry message frame, and send the response message frame of described initial network entry message frame,
Described initial network entry message frame includes at least destination address, and described destination address is multicast address；Data
Processing module, in the situation that the actual address that described multicast address is allocated with described communication equipment is identical
Under, generate the response message frame of described initial network entry message frame.
In this technical scheme, communication equipment can be router, and data processing module can be communication
In equipment data process chip module, data interaction module be then equivalent to signal receiving/transmission device and
Antenna etc..When receiving initial network entry message frame, communication equipment should at least parse its destination
Location, if this destination address is multicast address, then should determine whether are this multicast address and self address
Match, if coupling, then should return the response message frame of correspondence, to realize disappearing with this initial network entry
The connection of the sender of breath frame.Specifically, the STA sending above-mentioned initial network entry message frame can be
Through being under certain network, be such as under 3GPP network, send initial network entry message frame it
Before, it is desirable to switching to another network from 3GPP network, communication equipment the most herein is corresponding
Wlan network.Specifically, certain under such as STA is currently at 3GPP network services grand base
Stand, then all the or multiple communication equipment in multicast address can be the coverage of this serving macro base station
Corresponding address.By the destination address of initial network entry message frame being set to multicast address, thus both
Solve and cannot determine the problem whether existing near STA, there is which communication equipment, it is to avoid be blind
Mesh scanning causes the electricity of STA to waste, and can keep away by reducing response range as much as possible again
Exempt from blindly to send broadcast message frame and be likely to be received the response message frame that substantial amounts of communication equipment returns,
Avoid consequent conflict, thus be conducive to shortening the network switching time of this STA.
In technique scheme, it is preferable that described data processing module is in described destination address and institute
State in the case of the actual address that recipient distributed differs, be not responding to described initial network entry message
Frame.
In this technical scheme, when destination address (multicast address) does not mates with actual address, say
This initial network entry message frame bright is not to be sent to self, the most no longer performs to resolve operation, abandons this
Message frame, and do not return response message frame.Therefore, at the beginning of by address for the purpose of transmission multicast address
Beginning networking message frame, then can avoid a lot of incoherent access point to return response frame to sender, from
And avoid too much message sink to cause sender and produce conflict.
In technique scheme, it is preferable that what described data interaction module received described initially enters
Network information frame is probe request, handover request message frame or Fast Transition request message frame, described sound
Answering message frame is probing response frame, handoff response frame or rapid translating response frame.
In this technical scheme, if STA is currently at a certain network, in such as 3GPP network,
The wlan network corresponding to communication equipment switches over, and is obtaining the covered model of 3GPP macro base station
On the premise of the multicast address of the communication equipment under enclosing, can send probe request, handover request disappears
Breath frame or Fast Transition request message frame, wherein the destination address of these frames is the group being obtained ahead of time
Broadcast address.Compared to broadcast message frame, by the request of address for the purpose of multicast address of the application
Frame, thus enhance the transmission purposiveness of claim frame, the sender that it also avoid claim frame received
Many response frames, prevent conflict.
In technique scheme, it is preferable that described data interaction module is receiving described initial network entry
Before message frame, obtaining the actual address of described distribution, described actual address is the medium of unified distribution
Accessing to control address.
In this technical scheme, by the actual address of multiple access points is combined, thus formed
Unique multicast address of these access points (i.e. communication equipment in this programme), in order to claim frame is (i.e.
Initial network entry message frame) sender specify these access points connecing as initial network entry message frame simultaneously
Debit.Specifically, multicast address can be 48 bits as the form of MAC Address,
Can certainly be other number of bits length.
In technique scheme, it is preferable that also include: described actual address is the distribution of unified mechanism
Media access control multicast address.
In this technical scheme, such as 3GPP network, the serving macro base station under this network and should
Access point in the coverage of serving macro base station is managed by unified mechanism, such as this unification
Mechanism can be OAM, then this unifies mechanism's access point in the coverage to serving macro base station
Unique address distribute unitedly after, can directly allocation result be informed serving macro base station kimonos
All of access point (i.e. communication equipment in this programme) in business macro base station coverage, thus convenient
Handover management to 3GPP network Yu WALN network.
The present invention the most correspondingly proposes a kind of wireless communications method, including: receive initial network entry message
Frame, described initial network entry message frame includes at least destination address, and described destination address is multicast address；
When described multicast address is identical with the actual address that the recipient of described initial network entry message frame is allocated
Time, generate and send the response message frame of described initial network entry message frame to described initial network entry message frame
Sender.
In this technical scheme, communication equipment can be router.When receiving initial network entry message frame
Time, communication equipment should at least parse its destination address, if this destination address is multicast address, then
Should determine whether this multicast address matches with the address of self, if coupling, then should return correspondence
Response message frame, to realize the connection with the sender of this initial network entry message frame.Specifically, send out
Serve and state the STA of initial network entry message frame and can such as be in 3GPP already under certain network
Under network, before sending initial network entry message frame, it is desirable to switch to another network from 3GPP network
In, the wlan network that communication equipment the most herein is corresponding.Specifically, such as STA currently locates
Certain serving macro base station under 3GPP network, then multicast address can be covering of this serving macro base station
The address that all or multiple communication equipment in the range of lid is corresponding.By the mesh by initial network entry message frame
Address be set to multicast address, thus both solved and cannot determine whether exist near STA, deposit
Problem at which communication equipment, it is to avoid blindly scanning causes the electricity of STA to waste, and can lead to again
Cross and reduce response range as much as possible and avoid blindly sending broadcast message frame and being likely to be received a large amount of
Communication equipment return response message frame, it is to avoid consequent conflict, thus be conducive to shorten should
The network switching time of STA.
In technique scheme, it is preferable that when described destination address and described recipient are distributed
When actual address differs, it is not responding to described initial network entry message frame.
In this technical scheme, when destination address (multicast address) does not mates with actual address, say
This initial network entry message frame bright is not to be sent to self, the most no longer performs to resolve operation, abandons this
Message frame, and do not return response message frame.Therefore, at the beginning of by address for the purpose of transmission multicast address
Beginning networking message frame, then can avoid a lot of incoherent access point to return response frame to sender, from
And avoid too much message sink to cause sender and produce conflict.
In technique scheme, it is preferable that described initial network entry message frame is probe request, cuts
Changing request message frame or Fast Transition request message frame, described response message frame is probing response frame, cuts
Change response frame or rapid translating response frame.
In this technical scheme, if STA is currently at a certain network, in such as 3GPP network,
The wlan network corresponding to communication equipment switches over, and is obtaining the covered model of 3GPP macro base station
On the premise of the multicast address of the communication equipment under enclosing, can send probe request, handover request disappears
Breath frame or Fast Transition request message frame, wherein the destination address of these frames is the group being obtained ahead of time
Broadcast address.Compared to broadcast message frame, by the request of address for the purpose of multicast address of the application
Frame, thus enhance the transmission purposiveness of claim frame, the sender that it also avoid claim frame received
Many response frames, prevent conflict.
In technique scheme, it is preferable that before receiving described initial network entry message frame, also wrap
Including: obtain the actual address of described distribution, described actual address is the media access control of unified distribution
Address.
In this technical scheme, by the actual address of multiple access points is combined, thus formed
Unique multicast address of these access points (i.e. communication equipment in this programme), in order to claim frame is (i.e.
Initial network entry message frame) sender specify these access points connecing as initial network entry message frame simultaneously
Debit.Specifically, multicast address can be 48 bits as the form of MAC Address,
Can certainly be other number of bits length.
In technique scheme, it is preferable that also include: described actual address is the distribution of unified mechanism
Media access control multicast address.
In this technical scheme, such as 3GPP network, the serving macro base station under this network and should
Access point in the coverage of serving macro base station is managed by unified mechanism, such as this unification
Mechanism can be OAM, then this unifies mechanism's access point in the coverage to serving macro base station
Unique address distribute unitedly after, can directly allocation result be informed serving macro base station kimonos
All of access point (i.e. communication equipment in this programme) in business macro base station coverage, thus convenient
Handover management to 3GPP network Yu WALN network.
By above technical scheme, the communication equipment active scan mistake when performing network switching can be made
Cheng Zhong, the transmission target of the message frame that makes as much as possible to call request is the most accurate, thus avoids blindly sending
The electricity waste caused, and it is simultaneously received too much response message frame and the message collision that causes.
Accompanying drawing explanation
Fig. 1 shows the block diagram of a kind of communication equipment；
Fig. 2 is the flow chart of the wireless communications method that the communication equipment shown in Fig. 1 is corresponding；
Fig. 3 shows the block diagram of another kind of according to an embodiment of the invention communication equipment；
Fig. 4 is the flow chart of the wireless communications method that the communication equipment shown in Fig. 3 is corresponding；
Fig. 5 shows the particular flow sheet of method for switching network according to an embodiment of the invention.
Detailed description of the invention
In order to be more clearly understood that the above-mentioned purpose of the present invention, feature and advantage, below in conjunction with attached
The present invention is further described in detail by figure and detailed description of the invention.It should be noted that not
In the case of conflict, the feature in embodiments herein and embodiment can be mutually combined.
Elaborate a lot of detail in the following description so that fully understanding the present invention, but,
The present invention can implement to use other to be different from other modes described here, therefore, and the present invention
Protection domain do not limited by following public specific embodiment.
Fig. 1 shows the block diagram of a kind of communication equipment.
As it is shown in figure 1, a kind of according to an embodiment of the invention communication equipment 100, including: data
Processing module 102, generates initial network entry message frame, and described initial network entry message frame includes at least purpose
Address, described destination address is multicast address, and described multicast address is described initial network entry message frame
The unique address of the unified distribution that recipient is corresponding；Data interaction module 104, sends described initially to enter
Network information frame.
In this technical scheme, communication equipment 100 can be mobile phone or flat board, data processing module
102 can be the chip module that in communication equipment, data process, and data interaction module 104 is the most suitable
In signal receiving/transmission device and antenna etc..Communication equipment 100 can be already under certain network,
Such as it is under 3GPP network, before sending initial network entry message frame, it is desirable to from 3GPP network
Switch in another network, such as wlan network.Specifically, such as communication equipment 100 is current
Certain serving macro base station being under 3GPP network, then multicast address can be this serving macro base station
The address that all or multiple access point in coverage is corresponding.By the mesh by initial network entry message frame
Address be set to multicast address, thus both solved cannot determine near whether exist, which there is
The problem of access point, it is to avoid blindly scanning causes the electricity of communication equipment to waste, again can be by the greatest extent may be used
Reduce response range to avoid blindly sending broadcast message frame and being likely to be received substantial amounts of response energy
Message frame, it is to avoid consequent conflict, thus when being conducive to the network switching shortening this communication equipment
Between.
In technique scheme, it is preferable that described initial network entry message frame is probe request, cuts
Change request message frame or Fast Transition request message frame.
In this technical scheme, if communication equipment 100 is currently at a certain network, such as 3GPP
In network, switch over to wlan network, under obtaining 3GPP macro base station institute coverage
On the premise of the multicast address of access point (AP), can send probe request, handover request disappears
Breath frame or Fast Transition request message frame, wherein the destination address of these frames is the group being obtained ahead of time
Broadcast address.
In technique scheme, it is preferable that before generating described initial network entry message frame, described
Data interaction module 104 also obtains unified distribution corresponding to the recipient of described initial network entry message frame
Unique address.
In this technical scheme, first communication equipment 100 has been set up with a certain wireless network and has been associated, by
Associate setting up with other wireless network in certain reason.Such as when communication equipment 100 and 3GPP
Establish association, before switching to wlan network, then can be by this 3GPP network pair
The multicast address of all access points in its coverage of serving macro base station acquisition request answered, these connect
The multicast address of access point is unique.Specifically, communication equipment 100 can send to serving macro base station
Multicast address demand signalling, then serving macro base station is by returning response signaling, or is transmitted by data
Mode, to realize feedback to multicast address.
In technique scheme, it is preferable that the described unification that described data interaction module 104 obtains
The medium access of the recipient that unique address is described initial network entry message frame of distribution controls
(MAC) address.
In this technical scheme, by the actual address of multiple access points is combined, thus formed
Unique multicast address of these access points, in order to these access point conducts specified by communication equipment 100 simultaneously
The recipient of initial network entry message frame.Specifically, multicast address can be with the form one of MAC Address
Sample, is 48 bits, naturally it is also possible to for other number of bits length.
In technique scheme, it is preferable that the described unification that described data interaction module 104 obtains
The unique address of distribution is that the medium unifying recipient's distribution that mechanism is described initial velocity networking message frame is visited
Ask control multicast address.
In this technical scheme, such as 3GPP network, the serving macro base station under this network and should
Access point in the coverage of serving macro base station is managed by unified mechanism, such as this unification
Mechanism can be OAM, then this unifies mechanism's access point in the coverage to serving macro base station
Unique address distribute unitedly after, can directly allocation result be informed serving macro base station kimonos
All of access point in business macro base station coverage, thus conveniently to 3GPP network and WALN net
The handover management of network.
Fig. 2 is the flow chart of the wireless communications method that the communication equipment shown in Fig. 1 is corresponding.
As in figure 2 it is shown, the wireless communications method of communication equipment 100 correspondence shown in Fig. 1, including:
Step 202, generates initial network entry message frame, and described initial network entry message frame includes at least destination
Location, described destination address is multicast address, and described multicast address is connecing of described initial network entry message frame
The unique address of the unified distribution that debit is corresponding；Step 204, sends described initial network entry message frame.
In this technical scheme, this communication equipment 100, already under certain network, is such as in
Under 3GPP network, before sending initial network entry message frame, it is desirable to switch to separately from 3GPP network
In one network, such as wlan network.Communication equipment 100 can be mobile phone or flat board.Specifically
Ground, certain serving macro base station under such as communication equipment 100 is currently at 3GPP network, then multicast
Address can be the address that all or multiple access point in the coverage of this serving macro base station is corresponding.
By the destination address of initial network entry message frame is set to multicast address, thus both solved cannot be true
The problem whether existing near Ding, there is which access point, it is to avoid blindly scanning causes communication equipment
Electricity is wasted, and can avoid blindly sending broadcast by reducing response range as much as possible again
Frame and be likely to be received substantial amounts of response message frame, it is to avoid consequent conflict, thus be conducive to contracting
The network switching time of this communication equipment 100 short.
In technique scheme, it is preferable that described initial network entry message frame is probe request, cuts
Change request message frame or Fast Transition request message frame.
In this technical scheme, if communication equipment 100 is currently at a certain network, such as 3GPP
In network, switch over to wlan network, under obtaining 3GPP macro base station institute coverage
On the premise of the multicast address of access point (AP), can send probe request, handover request disappears
Breath frame or Fast Transition request message frame, wherein the destination address of these frames is the group being obtained ahead of time
Broadcast address.
In technique scheme, it is preferable that before generating described initial network entry message frame, also wrap
Include: obtain the unique address of unified distribution corresponding to the recipient of described initial network entry message frame.
In this technical scheme, first communication equipment 100 has been set up with a certain wireless network and has been associated, by
Associate setting up with other wireless network in certain reason.Such as when communication equipment 100 and 3GPP
Network establishes association, before switching to wlan network, then and can be by this 3GPP net
The multicast address of all access points in its coverage of serving macro base station acquisition request that network is corresponding, this
The multicast address of a little access points is unique.Specifically, communication equipment 100 can be to serving macro base station
Send multicast address demand signalling, then serving macro base station is by returning response signaling, or passes through data
The mode of transmission, to realize the feedback to multicast address.
In technique scheme, it is preferable that the unique address of described unified distribution is described initially to enter
The medium access of the recipient of network information frame controls (MAC) address.
In this technical scheme, by the actual address of multiple access points is combined, thus formed
Unique multicast address of these access points, in order to these access point conducts specified by communication equipment 100 simultaneously
The recipient of initial network entry message frame.Specifically, multicast address can be with the form one of MAC Address
Sample, is 48 bits, naturally it is also possible to for other number of bits length.
In technique scheme, it is preferable that the unique address of described unified distribution for unified mechanism is
The media access control multicast address of recipient's distribution of described initial velocity networking message frame.
In this technical scheme, such as 3GPP network, the serving macro base station under this network and should
Access point in the coverage of serving macro base station is managed by unified mechanism, such as this unification
Mechanism can be OAM, then this unifies mechanism's access point in the coverage to serving macro base station
Unique address distribute unitedly after, can directly allocation result be informed serving macro base station kimonos
All of access point in business macro base station coverage, thus conveniently to 3GPP network and WALN net
The handover management of network.
Fig. 3 shows the block diagram of another kind of according to an embodiment of the invention communication equipment.
As it is shown on figure 3, another kind of according to an embodiment of the invention communication equipment 300, including: number
According to interactive module 302, receive initial network entry message frame, and send described initial network entry message frame
Response message frame, described initial network entry message frame includes at least destination address, and described destination address is group
Broadcast address；Data processing module 304, in the reality that described multicast address is allocated with described communication equipment
In the case of address, border is identical, generate the response message frame of described initial network entry message frame.
In this technical scheme, communication equipment 300 can be router, and data processing module 304 can
To be the chip module that in communication equipment 300, data process, data interaction module 302 is then equivalent to
Signal receiving/transmission device and antenna etc..When receiving initial network entry message frame, communication equipment 300 should
When at least parsing its destination address, if this destination address is multicast address, then this multicast should be determined
Whether address matches with the address of self, if coupling, then should return the response message frame of correspondence,
To realize the connection of the sender with this initial network entry message frame.Specifically, above-mentioned initial network entry is sent
The STA of message frame such as can be under 3GPP network already under certain network, is sending
Before initial network entry message frame, it is desirable to switch to another network from 3GPP network, the most herein
The wlan network of communication equipment 300 correspondence.Specifically, such as STA is currently at 3GPP net
Certain serving macro base station under network, then in multicast address can be the coverage of this serving macro base station
All or address of multiple communication equipment 300 correspondence.By the destination address by initial network entry message frame
It is set to multicast address, thus had both solved and cannot determine whether exist near STA, which there is
The problem of communication equipment 300, it is to avoid blindly scanning causes the electricity of STA to waste, and can pass through again
Reduce response range as much as possible to avoid blindly sending broadcast message frame and being likely to be received substantial amounts of
The response message frame that communication equipment 300 returns, it is to avoid consequent conflict, thus be conducive to shortening
The network switching time of this STA.
In technique scheme, it is preferable that described data processing module 304 is at described destination address
In the case of the actual address distributed with described recipient differs, it is not responding to described initial network entry and disappears
Breath frame.
In this technical scheme, when destination address (multicast address) does not mates with actual address, say
This initial network entry message frame bright is not to be sent to self, the most no longer performs to resolve operation, abandons this
Message frame, and do not return response message frame.Therefore, at the beginning of by address for the purpose of transmission multicast address
Beginning networking message frame, then can avoid a lot of incoherent access point to return response frame to sender, from
And avoid too much message sink to cause sender and produce conflict.
In technique scheme, it is preferable that described data interaction module 302 receive described at the beginning of
Beginning networking message frame is probe request, handover request message frame or Fast Transition request message frame, institute
Stating response message frame is probing response frame, handoff response frame or rapid translating response frame.
In this technical scheme, if STA is currently at a certain network, in such as 3GPP network,
Wlan network to communication equipment 300 correspondence switches over, and is covered obtaining 3GPP macro base station
On the premise of the multicast address of the communication equipment 300 under lid scope, probe request can be sent, cut
Changing request message frame or Fast Transition request message frame, wherein the destination address of these frames is for institute in advance
The multicast address obtained.Compared to broadcast message frame, by the application with multicast address as destination
The claim frame of location, thus enhance the transmission purposiveness of claim frame, it also avoid the sender of claim frame
Receive too much response frame, prevent conflict.
In technique scheme, it is preferable that described data interaction module 302 is described initially in reception
Before networking message frame, obtaining the actual address of described distribution, described actual address is unified distribution
Media Access Control address.
In this technical scheme, by the actual address of multiple access points is combined, thus formed
Unique multicast address of these access points (i.e. communication equipment 300 in this programme), in order to claim frame
The sender of (i.e. initial network entry message frame) specifies these access points as initial network entry message frame simultaneously
Recipient.Specifically, multicast address can be 48 bits as the form of MAC Address
Position, naturally it is also possible to for other number of bits length.
In technique scheme, it is preferable that also include: described actual address is the distribution of unified mechanism
Media access control multicast address.
In this technical scheme, such as 3GPP network, the serving macro base station under this network and should
Access point in the coverage of serving macro base station is managed by unified mechanism, such as this unification
Mechanism can be OAM, then this unifies mechanism's access point in the coverage to serving macro base station
Unique address distribute unitedly after, can directly allocation result be informed serving macro base station kimonos
All of access point (i.e. communication equipment 300 in this programme) in business macro base station coverage, thus
The convenient handover management to 3GPP network Yu WALN network.
Fig. 4 is the flow chart of the wireless communications method that the communication equipment shown in Fig. 3 is corresponding.
As shown in Figure 4, the wireless communications method of communication equipment 300 correspondence shown in Fig. 3, including:
Step 402, receives initial network entry message frame, and described initial network entry message frame includes at least purpose
Address, described destination address is multicast address.
Step 404, when the recipient of described multicast address Yu described initial network entry message frame is allocated
When actual address is identical, enters step 406, otherwise enter step 408.
Step 406, generate and send described initial network entry message frame response message frame give described initially
The sender of networking message frame.
Step 408, is not responding to described initial network entry message frame, the most directly abandons described initial network entry
Message frame.
In this technical scheme, communication equipment 300 can be router.Disappear when receiving initial network entry
During breath frame, communication equipment 300 should at least parse its destination address, if this destination address is multicast
Address, then should determine whether this multicast address matches with the address of self, if coupling, then should
Return corresponding response message frame, to realize the connection of the sender with this initial network entry message frame.When
When destination address (multicast address) does not mates with actual address, this initial network entry message frame is described not
It is destined to self, the most no longer performs to resolve operation, abandon this message frame, and do not return response and disappear
Breath frame.Therefore, by the initial network entry message frame of address for the purpose of transmission multicast address, then can keep away
Exempt from a lot of incoherent access point and return response frame to sender, thus avoid too much message sink to lead
Cause to produce conflict sender.Specifically, the STA sending above-mentioned initial network entry message frame can be
Through being under certain network, be such as under 3GPP network, send initial network entry message frame it
Before, it is desirable to switching to another network from 3GPP network, communication equipment 300 the most herein is corresponding
Wlan network.Specifically, certain service under such as STA is currently at 3GPP network is grand
Base station, then all the or multiple communication in multicast address can be the coverage of this serving macro base station sets
The address of standby 300 correspondences.By the destination address of initial network entry message frame is set to multicast address,
Thus both solved and cannot determine whether exist near STA, there is asking of which communication equipment 300
Topic, it is to avoid blindly scanning causes the electricity of STA to waste, again can be by reducing sound as much as possible
Answer scope to avoid blindly to send broadcast message frame and be likely to be received substantial amounts of communication equipment 300 and return
Response message frame, it is to avoid consequent conflict, thus be conducive to the network shortening this STA to cut
Change the time.
In technique scheme, it is preferable that described initial network entry message frame is probe request, cuts
Changing request message frame or Fast Transition request message frame, described response message frame is probing response frame, cuts
Change response frame or rapid translating response frame.
In this technical scheme, if STA is currently at a certain network, in such as 3GPP network,
Wlan network to communication equipment 300 correspondence switches over, and is covered obtaining 3GPP macro base station
On the premise of the multicast address of the communication equipment 300 under lid scope, probe request can be sent, cut
Changing request message frame or Fast Transition request message frame, wherein the destination address of these frames is for institute in advance
The multicast address obtained.Compared to broadcast message frame, by the application with multicast address as destination
The claim frame of location, thus enhance the transmission purposiveness of claim frame, it also avoid the sender of claim frame
Receive too much response frame, prevent conflict.
In technique scheme, it is preferable that before receiving described initial network entry message frame, also wrap
Including: obtain the actual address of described distribution, described actual address is the media access control of unified distribution
Address.
In this technical scheme, by the actual address of multiple access points is combined, thus formed
Unique multicast address of these access points (i.e. communication equipment 300 in this programme), in order to claim frame
The sender of (i.e. initial network entry message frame) specifies these access points as initial network entry message frame simultaneously
Recipient.Specifically, multicast address can be 48 bits as the form of MAC Address
Position, naturally it is also possible to for other number of bits length.
In technique scheme, it is preferable that also include: described actual address is the distribution of unified mechanism
Media access control multicast address.
In this technical scheme, such as 3GPP network, the serving macro base station under this network and should
Access point in the coverage of serving macro base station is managed by unified mechanism, such as this unification
Mechanism can be OAM, then this unifies mechanism's access point in the coverage to serving macro base station
Unique address distribute unitedly after, can directly allocation result be informed serving macro base station kimonos
All of access point (i.e. communication equipment 300 in this programme) in business macro base station coverage, thus
The convenient handover management to 3GPP network Yu WALN network.
Fig. 5 shows the particular flow sheet of method for switching network according to an embodiment of the invention.
As shown in Figure 5, it is assumed that terminal 502 is presently attached under 3GPP network, and base station 506 is
The serving macro base station of terminal 502.AP504 be all AP(under the coverage of base station 506 or
Person is multiple AP therein), such as AP1, AP2 ... APn etc., and terminal 502 wish by
Base station 506 switches to certain AP in AP504.Owing to whether terminal 502 is not aware that near it
Exist and there is which AP, accordingly, it would be desirable to perform drive sweep or active scan, to realize
Discovery and connection to AP.
When performing active scan according to technical scheme, its scanner uni method for switching network
Idiographic flow includes:
Step 1: the distribution of multicast address
Assuming that base station 506 is macro base station, covering radius is about 1Km, and the covering radius of AP is
About 100m, then there may be multiple AP(i.e. AP504 in the coverage of base station 506).Its
In, base station 506 and AP504 is managed by unified mechanism, this mechanism i.e. server 508, tool
Body can be OAM.
Server 508 is the unique corresponding multicast address of each AP distribution in AP504, and will divide
Join result and inform AP504 and base station 506.Specifically, server 508 can utilize each AP's
MAC Address, generates the multicast address of above-mentioned unique correspondence.
Step 2: the acquisition of multicast address
Terminal 502 initiates request to base station 506, to obtain the AP504 under the coverage of base station 506
Multicast address.Specifically, such as terminal 502 can send to base station 506 multicast address obtain please
Seek frame, then base station 506 can perform corresponding feedback according to the type of this request.
Step 3: the feedback of multicast address
When base station 506 receives the request of terminal 502, the most above-mentioned multicast address obtains request
Frame, then feed back to terminal 502 by the multicast address that server 508 is informed.Specifically, base station 506
The response frame of claim frame can be obtained by returning multicast address, and multicast address is added on this response
In frame, to feed back to terminal 502；Or, base station 506 can be by the way of data be transmitted, will
Multicast address is transferred to terminal 502, to realize feedback.
Step 4: receive and confirm
Terminal 502 sends to base station 506 and confirms message frame, to confirm that have received base station 506 feeds back
Multicast address.
Step 5: send probe request
Terminal 502 generates probe request, and the destination address of this probe request i.e. base station 506 is fed back
Multicast address.The probe request sent due to terminal 502 is no longer broadcast message frame, thus real
Existing:
On the one hand, destination address is multicast address, and terminal 502 no longer blindly performs scanning, is conducive to
Terminal 502 saves electricity.
On the other hand, even if a lot of AP have received this probe request, but for its from
Body address is unmatched with the multicast address in probe request, and this AP would not be to this probe requests thereby
Frame continues to resolve, and also would not respond thereto, thus improves the purpose that probe request sends
Property, reduce the probability being simultaneously received a lot of response frame, it is to avoid produce conflict, be conducive to shortening
The time of terminal 502 handover network, improve switching efficiency.
Step 6:AP returns probing response frame
Assuming that the AP2 in AP504 is in the vicinity of terminal 502, and have received above-mentioned detection
Claim frame.Address phase due to the destination address in probe request, i.e. multicast address with AP2
Join, thus AP2 completes the parsing to probe request, and return corresponding probe response
Frame.
Assuming that APm is also near terminal 502, but APm is not belonging to AP504, then work as APm
After receiving the probe request that terminal 502 sends, by the destination address to this probe request
Resolve, it is judged that this destination address (the most above-mentioned multicast address) does not mates with the address of self
Time, then do not continue to resolve, abandon this probe request, and it will not be fed back.
Step 7: network switches
Terminal 502, according to the probing response frame from AP2 received, completes at 3GPP network
With the switching (Handover) before wlan network, and carry out initially connecting of WALN network
Connect.
Technical scheme is described in detail, it is contemplated that in correlation technique above in association with accompanying drawing, right
Scanning in access point is blindly, causes the waste of terminal power, thereby increases and it is possible to big owing to receiving
Amount response frame and produce conflict.Therefore, the present invention proposes new communication equipment and side wireless communication
Method, can make, in the communication equipment active scan process when performing network switching, to make as much as possible
The transmission target of request message frame is the most accurate, thus avoids blindly sending the electricity waste caused, with
And it is simultaneously received too much response message frame and the message collision that causes.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for
For those skilled in the art, the present invention can have various modifications and variations.All essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included in the present invention
Protection domain within.
Claims (16)
1. a communication equipment, it is characterised in that including:
Data processing module, when described communication equipment is switched to the second network by first network, at the beginning of generation
Beginning networking message frame, described initial network entry message frame includes at least destination address, and described destination address is group
Broadcast address, described multicast address be unified distribution corresponding to the recipient of described initial network entry message frame only
One address；
Data interaction module, sends described initial network entry message frame；
Described initial network entry message frame is that probe request, handover request message frame or Fast Transition request disappear
Breath frame.
Communication equipment the most according to claim 1, it is characterised in that generating described initial network entry
Before message frame, the recipient that described data interaction module also obtains described initial network entry message frame is corresponding
The unique address of unified distribution.
Communication equipment the most according to claim 2, it is characterised in that described data interaction module obtains
The unique address of the described unified distribution taken is the medium access control of the recipient of described initial network entry message frame
System (MAC) address.
Communication equipment the most according to claim 3, it is characterised in that described data interaction module obtains
The unique address of the described unified distribution taken is to unify the recipient that mechanism is described initial network entry message frame to divide
The media access control multicast address joined.
5. a wireless communications method, it is characterised in that including:
When communication equipment is switched to the second network by first network, generate initial network entry message frame, described
Initial network entry message frame includes at least destination address, and described destination address is multicast address, described multicast ground
Location is the unique address of unified distribution corresponding to the recipient of described initial network entry message frame；
Send described initial network entry message frame；
Described initial network entry message frame is that probe request, handover request message frame or Fast Transition request disappear
Breath frame.
Wireless communications method the most according to claim 5, it is characterised in that described initially in generation
Before networking message frame, also include:
Obtain the unique address of unified distribution corresponding to the recipient of described initial network entry message frame.
Wireless communications method the most according to claim 6, it is characterised in that described unified distribution
Unique address is that the medium access of the recipient of described initial network entry message frame controls (MAC) address.
Wireless communications method the most according to claim 7, it is characterised in that described unified distribution
Unique address is the media access control group unifying recipient's distribution that mechanism is described initial network entry message frame
Broadcast address.
9. a communication equipment, it is characterised in that including:
Data interaction module, receives initial network entry message frame, and sends described initial network entry message frame
Response message frame, described initial network entry message frame includes at least destination address, and described destination address is multicast
Address；
Data processing module, the actual address allocated with described communication equipment at described multicast address is identical
In the case of, generate the response message frame of described initial network entry message frame；
The described initial network entry message frame that described data interaction module receives is probe request, switching please
Asking message frame or Fast Transition request message frame, described response message frame is probing response frame, handoff response
Frame or rapid translating response frame.
Communication equipment the most according to claim 9, it is characterised in that described data processing module
In the case of the actual address distributed described destination address and described recipient differs, it is not responding to institute
State initial network entry message frame.
11. according to the communication equipment described in claim 9 or 10, it is characterised in that described data interaction
Module, before receiving described initial network entry message frame, obtains the actual address of described distribution, described reality
Address is the Media Access Control address of unified distribution.
12. communication equipments according to claim 11, it is characterised in that also include: described reality
Address is the media access control multicast address of unified mechanism distribution.
13. 1 kinds of wireless communications methods, it is characterised in that including:
Receiving initial network entry message frame, described initial network entry message frame includes at least destination address, described mesh
Address be multicast address；
When described multicast address is identical with the actual address that the recipient of described initial network entry message frame is allocated
Time, generate and send the response message frame of described initial network entry message frame to described initial network entry message frame
Sender；
Described initial network entry message frame is that probe request, handover request message frame or Fast Transition request disappear
Breath frame, described response message frame is probing response frame, handoff response frame or rapid translating response frame.
14. wireless communications methods according to claim 13, it is characterised in that also include:
When the actual address that described destination address and described recipient are distributed differs, it is not responding to described
Initial network entry message frame.
15. according to the wireless communications method described in claim 13 or 14, it is characterised in that receiving
Before described initial network entry message frame, also include:
Obtaining the actual address of described distribution, described actual address is the media access control ground of unified distribution
Location.
16. wireless communications methods according to claim 15, it is characterised in that also include: described
Actual address is the media access control multicast address of unified mechanism distribution.
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