CN104904274A - Access network selection method and apparatus - Google Patents

Access network selection method and apparatus Download PDF

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Publication number
CN104904274A
CN104904274A CN201380002897.5A CN201380002897A CN104904274A CN 104904274 A CN104904274 A CN 104904274A CN 201380002897 A CN201380002897 A CN 201380002897A CN 104904274 A CN104904274 A CN 104904274A
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user terminal
access network
cell
access
network node
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李安俭
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/14—Access restriction or access information delivery, e.g. discovery data delivery using user query or user detection

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention discloses an access network selection method and an apparatus. Embodiments of the present invention relate to the field of communications. Provided are an access network selection method and an apparatus. The method comprises: receiving an access request message sent by a user terminal, wherein the access request message comprises coordinate information of a position where the user terminal is located and a cell ID of a cell where the user terminal is located; querying an enhanced mapping relationship table to obtain node information of an access network node corresponding to the cell ID of the cell where the user terminal is located; comparing the coordinate information of the position where the user terminal is located with coordinate information in the node information of the access network node corresponding to the cell ID of the cell where the user terminal is located to obtain node information of an access network node that is nearest to the user terminal; and sending an access response message to the user terminal.

Description

Access network selection method and apparatus
A kind of access network selection method and device
The present invention relates to the communications field, more particularly to a kind of access network selection method and device for technical field.
Background technology
Under the current network architecture, ANDSF (Access Network Discovery Support Functions, access network discovery and selection function are configured in core net）Entity is there is provided a kind of according to the pattern that carrier policy is user terminal selecting target access network.ANDSF entities are cooperateed with by core net with the interaction of user terminal, realize Intelligent network-selecting.Existing ANDSF physical memories contain mapping table, the table stores the corresponding relation between the identification information of the cell ID of all cells in 3GPP network coverages and multiple access network nodes of each Intra-cell administration, its i information of getting the bid is that (Service Set Identifier, the moon good business collection mark i is only by SSID）(Basic Service Set Identifier, the basic moon good business collection mark i is only with BSSID）.Current network end indicates that UE carries out intelligent selection to access network by ANDSF solid elements.Specific steps include：User terminal determines to be currently located the cell ID of cell, and cell ID is sent to core net, list item corresponding with the cell ID that user terminal is sent in the ANDSF object query mapping tables of core net, obtain the identification information that user terminal is currently located each access network node existed in cell, and the identification information is sent to user terminal, user terminal just can search for its each corresponding access network node according to the trial of these identification informations and be prepared for access.In above process, because cell coverage area is very big, maximum supports 100km.Therefore there can be substantial amounts of access network node in certain cell coverage area, if user terminal is all scanned for all access network nodes in the cell, user terminal power consumption can be caused to greatly increase.
Content of the invention embodiments of the invention provide a kind of access network selection method and device, it is possible to reduce user terminal reduces the power consumption of user terminal to the volumes of searches of access network node.To reach above-mentioned purpose, embodiments of the invention are adopted the following technical scheme that：In a first aspect, a kind of access network selection method is disclosed, including：The access request message that user terminal is sent is received, the access request message includes described The cell I D of cell where the coordinate information of user terminal position and the user terminal;Search the nodal information of the corresponding access network nodes of cell ID of cell where enhancing mapping table obtains the user terminal, wherein, the cell I D for the cell that is stored with the enhancing mapping table and the nodal information of the access network node in the cell corresponding relation, the nodal information of the access network node include：The access information and coordinate information of access network；Compare the coordinate information of the user terminal position, the coordinate information in the nodal information of access network node corresponding with the cell ID of cell where the user terminal obtains the nodal information of the access network node nearest from the user terminal；Access response message is sent to the user terminal, the nodal information of the access network node nearest from the user terminal is carried in the access response message, to cause the user terminal to search for the access network node nearest from the user terminal, accessed.With reference in a first aspect, in the first possible implementation, the access request message is medium access control MAC message, radio resource control RRC message or Acces s Ne twork Info Reques t.Second aspect, discloses a kind of access network selection method, including：Access request message is sent to access network discovery and selection function ANDSF entities, the cell ID of cell where the access request message includes the coordinate information and the user terminal of user terminal position;Receive the nodal information that the access network node nearest from the user terminal is carried in the access response message that the ANDSF entities are sent, the access response message；The access information of access network in the nodal information of the access network node nearest from the user terminal, searches for and accesses the access network node nearest from the user terminal.
With reference to second aspect, in the first possible implementation, the access request message is medium access control MAC message, radio resource control RRC message or Acces s Ne twork Info Reques t message.
With reference to the first possible implementation of second aspect or second aspect, in second of possible implementation, before the access request message is sent to ANDSF entities, methods described, in addition to：Obtain the coordinate information of the user terminal position. With reference to second of possible implementation of second aspect, in the third possible implementation, the coordinate information for obtaining the user terminal position is specifically included：The coordinate information of the user terminal position is obtained by internal global position system GPS, or using the coordinate information of the wireless location technology acquisition user terminal position.
The third aspect, discloses a kind of access network selection method, including：The cell of cell where obtaining the coordinate information and the user terminal of user terminal position
I D;Receive the enhancing mapping table that access network discovery and selection function ANDSF entities are sent, the cell I D for the cell that is stored with the enhancing mapping table and the nodal information of the access network node in the cell corresponding relation, the nodal information of the access network node include：The access information and coordinate information of access network；Search the nodal information of the corresponding access network nodes of cell ID of cell where the enhancing mapping table obtains the user terminal；Compare the coordinate information of the user terminal position, the coordinate information in the nodal information of access network node corresponding with the cell ID of cell where the user terminal obtains the nodal information of the access network node nearest from the user terminal；The access information of access network in the nodal information of the access network node nearest from the user terminal, searches for and accesses the access network node nearest from the user terminal.With reference to the third aspect, in the first possible implementation, the coordinate information for obtaining user terminal position is specifically included：The coordinate information of the user terminal position is obtained by internal global position system GPS, or using the coordinate information of the wireless location technology acquisition user terminal position.
Fourth aspect, discloses a kind of access network discovery and selection function ANDSF entities, including：Receiving unit, the access request message for receiving user terminal transmission, the cell ID of cell where the access request message includes the coordinate information and the user terminal of the user terminal position;Searching unit, the nodal information of the corresponding access network nodes of cell I D for searching cell where enhancing mapping table obtains the user terminal that the receiving unit is received, wherein, it is described The cell ID and the nodal information of the access network node in the cell of the cell that is stored with enhancing mapping table corresponding relation, the nodal information of the access network node include：The access information and coordinate information of access network；Comparing unit, coordinate information for comparing the user terminal position, coordinate information in the nodal information of access network node corresponding with the cell ID of cell where the user terminal that the searching unit is obtained, obtains the nodal information of the access network node nearest from the user terminal；Transmitting element, for sending access response message to the user terminal, the nodal information for the access network node nearest from the user terminal that the comparing unit is obtained is carried in the access response message, to cause the user terminal to search for the access network node nearest from the user terminal, accessed.With reference to fourth aspect, in the first possible implementation, the access request message is medium access control MAC message, radio resource control RRC message or Acces s Ne twork Info Reques t.5th aspect, discloses a kind of user terminal, including：Transmitting element, for sending access request message to access network discovery and selection function ANDSF entities, the cell ID of cell where the access request message includes the coordinate information and the user terminal of user terminal position;Receiving unit, the nodal information of the access network node nearest from the user terminal is carried for receiving in the access response message that the ANDSF entities are sent, the access response message；Access unit, for the access information of the access network in the nodal information of nearest from user terminal access network node according to receiving unit reception, searches for and accesses the access network node nearest from the user terminal.With reference to the 5th aspect, in the first possible implementation, the access request message is medium access control MAC message, radio resource control RRC message or Acces s Ne twork Info Reques t.With reference to the 5th aspect or the first possible implementation of the 5th aspect, in second of possible implementation, also include obtaining unit, the obtaining unit, for before the transmitting element sends the access request message to ANDSF entities, obtaining the coordinate information of the user terminal position. With reference to the 5th aspect or second of possible implementation of the 5th aspect, in the third possible implementation, the obtaining unit specifically for, the coordinate information of the user terminal position is obtained by internal global position system GPS, or using the coordinate information of the wireless location technology acquisition user terminal position.
6th aspect, discloses a kind of user terminal, including：Obtaining unit, the cell ID of cell where for obtaining the coordinate information and the user terminal of user terminal position;Receiving unit, for receiving the enhancing mapping table that access network discovery and selection function ANDSF entities are sent, the cell ID for the cell that is stored with the enhancing mapping table and the nodal information of the access network node in the cell corresponding relation, the nodal information of the access network node include：The access information and coordinate information of access network；Searching unit, the nodal information of the corresponding access network nodes of cell ID for searching cell where the enhancing mapping table that the receiving unit is received obtains the user terminal；Comparing unit, coordinate information for comparing the user terminal position that the obtaining unit is obtained, coordinate information in the nodal information of access network node corresponding with the cell I D of cell where the user terminal that the searching unit is obtained, obtains the nodal information of the access network node nearest from the user terminal；Access unit, for the access network information of the access network in the nodal information of nearest from user terminal access network node according to comparing unit acquisition, searches for and accesses the access network node nearest from the user terminal.With reference to the 6th aspect, in the first possible implementation, the obtaining unit is additionally operable to, and the coordinate information of the user terminal position is obtained by internal global position system GPS, or using the coordinate information of the wireless location technology acquisition user terminal position.With reference to the 6th aspect, in second of possible implementation, the receiving unit is additionally operable to, before the obtaining unit obtains the cell ID of cell where the coordinate information and the user terminal of user terminal position, the enhancing mapping table that the ANDSF entities are sent is received.Access network selection method and device provided in an embodiment of the present invention, ANDSF entities receive the access request message of user terminal transmission, and the cell ID of cell according to where the user terminal carried in the access request message searches enhancing mapping table and obtains MPS process where the user terminal In the range of all access network nodes nodal information；Coordinate information in the nodal information of access network node where comparing the coordinate information and the user terminal of the user terminal position carried in the access request message in cell coverage area, obtains the nodal information of the access network node nearest from the user terminal；The nodal information of the access network node nearest from the user terminal is sent to user terminal so that user terminal may search for the access network node nearest from the user terminal, be accessed.With all access network nodes where acquisition user terminal of the prior art in cell coverage area, all access network nodes are searched for compare, access network selection method provided in an embodiment of the present invention, reduces volumes of searches of the user terminal to access network node, reduces the power consumption of user terminal.
It is a kind of access network selection method flow schematic diagram that embodiments of the invention 1 are provided to illustrate Fig. 1；Fig. 2 is another access network selection method flow schematic diagram that embodiments of the invention 1 are provided；Fig. 3 is a kind of access network selection method flow schematic diagram that embodiments of the invention 2 are provided；Fig. 4 is a kind of access network selection method flow schematic diagram that embodiments of the invention 3 are provided；Fig. 5 is a kind of structured flowchart for ANDSF entities that embodiments of the invention 4 are provided；Fig. 6 is a kind of structured flowchart for user terminal that embodiments of the invention 4 are provided；Fig. 7 is a kind of structured flowchart for user terminal that embodiments of the invention 5 are provided；Fig. 8 is a kind of structured flowchart for ANDSF entities that embodiments of the invention 6 are provided；Fig. 9 is a kind of structured flowchart for user terminal that embodiments of the invention 6 are provided；Fig. 10 is a kind of structured flowchart for user terminal that embodiments of the invention 7 are provided.
Embodiment is below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.Embodiment 1:The embodiments of the invention provide a kind of access network selection method, executive agent is ANDSF entities, As shown in figure 1, the described method comprises the following steps：
101st, the access request message that user terminal is sent is received.Here, the cell ID of cell where the access request message includes the coordinate information and the user terminal of the user terminal position.Wherein, the coordinate information of the user terminal position is that the user terminal is obtained before the access request message is sent, and is sent to ANDSF entities by the access request message.When ANDSF entities are erected at resident's access net side, the network-side for receiving the access request message is just resident's access network, and at this moment the access request message is MAC (Media Access Control, medium access control）Message, or RRC (Radio Resource Control, wireless heterogeneous networks）Message；When ANDSF entities are erected at core-network side, the network-side for receiving the access request message is just core net, and at this moment the access request message can be Access Network Info Request.
102nd, the nodal information of the corresponding access network nodes of cell ID of cell where enhancing mapping table obtains the user terminal is searched.Wherein, the cell I D and the nodal information of the access network node in the cell of the cell that is stored with the enhancing mapping table corresponding relation, the nodal information of the access network node include：The access information and coordinate information of access network, and ANDSF physical memories contain the enhancing mapping table.Here, ANDSF entities are received after the access request message that the user terminal is sent, the cell ID of cell searches the enhancing mapping table according to where the user terminal that the access request message includes first, the nodal information of all access network nodes where obtaining the user terminal in cell coverage area.
103rd, the coordinate information in the coordinate information of relatively more described user terminal position, the nodal information of access network node corresponding with the cell ID of cell where the user terminal, obtains the nodal information of the access network node nearest from the user terminal.
Here, the coordinate information of all access network nodes where the nodal information of all access network nodes where the user terminal that the ANDSF entities are obtained in cell coverage area includes user terminal in cell coverage area.The ANDSF entities are carried out to the coordinate information of all nodes where the coordinate information and user terminal of the user terminal position in cell coverage area --- and compare, obtain the nodal information of the access network node nearest from the user terminal. 1 04, access response message is sent to the user terminal.Here, the nodal information of the access network node nearest from the user terminal obtained in step 1 03 is carried in the access response message, to cause the user terminal to search for the access network node nearest from the user terminal, is accessed.The embodiments of the invention provide a kind of access network selection method, executive agent is user terminal, as shown in Fig. 2 the described method comprises the following steps：
201st, access request message is sent to ANDSF entities.Here, the cell ID of cell where the access request message includes the coordinate information and the user terminal of user terminal position.The cell ID of cell where the access request message includes the coordinate information and the user terminal of user terminal position.Before the user terminal sends access request message to the ANDSF entities of network-side, the user terminal obtains the coordinate information of the user terminal position by internal global position system GPS or using wireless location technology first.When the network-side for receiving the access request message is resident's access network, the access request message is medium access control MAC message, radio resource control RRC message.When the network-side for receiving the access request message is core net, the access request message is Acces s Ne twork Info Reque s t.
202nd, the access response message that the ANDSF entities are sent is received.The nodal information of the access network node nearest from the user terminal is carried in the access response message, the nodal information of the access network node includes：The access information and coordinate information of access network.
203rd, the access information of the access network in the nodal information of the access network node nearest from the user terminal, searches for and accesses the access network node nearest from the user terminal.Access network selection method provided in an embodiment of the present invention, ANDSF entities receive the access request message of user terminal transmission, and the cell ID of cell according to where the user terminal carried in the access request message searches the nodal information of all access network nodes in cell coverage area where enhancing mapping table obtains the user terminal；Coordinate information in the nodal information of access network node where comparing the coordinate information and the user terminal of the user terminal position carried in the access request message in cell coverage area, obtains the nodal information of the access network node nearest from the user terminal；The nodal information of the access network node nearest from the user terminal is sent To user terminal so that user terminal may search for the access network node nearest from the user terminal, be accessed.With all access network nodes where acquisition user terminal of the prior art in cell coverage area, all access network nodes are searched for compare, access network selection method provided in an embodiment of the present invention, reduces volumes of searches of the user terminal to access network node, reduces the power consumption of user terminal.
Embodiment 2:The embodiments of the invention provide a kind of access network selection method, as shown in figure 3, the described method comprises the following steps：
301st, the coordinate information of the user terminal position is obtained.The user terminal mainly obtains the coordinate information of its position by two methods, one is to obtain the coordinate information of the user terminal position by internal global position system GPS, or 0TD0A (Observed Time Difference of Arrival, reaching time-difference positioning mode can be used）, the wireless location technology such as CID, RFPM obtain the coordinate information of the user terminal position.Wherein, the 0TD0A technologies are that user terminal sends signal to three base stations, and the time difference for then reaching three bases further according to signal is positioned.Example, the coordinate information that the user terminal obtains its position is (2,5).
302nd, user terminal sends access request message to ANDSF entities.Here, the cell ID of cell where the access request message includes the coordinate information and the user terminal of user terminal position.
303rd, the ANDSF entities receive the access request message that user terminal is sent, and search the nodal information of the corresponding access network nodes of cell ID of cell where enhancing mapping table obtains the user terminal.
Wherein, the cell I D and the nodal information of the access network node in the cell of the cell that is stored with the enhancing mapping table corresponding relation.If the access network is wifi networks, the access information of the access network includes SSID and BSSID, and the nodal information of the access network node includes SSID, BSSID and coordinate information.Wherein, the SSID refers to the unique ID of wifi access nodes, and the BSSID refers to basic service device BSS mark ID.Here, the access request message that ANDSF entities reception user terminal is sent includes two kinds of situations, if the ANDSF entities are erected at core-network side, the access request message that user terminal is sent is Access Network Info Request;If the ANDSF entities are erected at resident's access net side, the access request message that user terminal is sent is MAC message or RRC information.Example, as shown in table 1, when the access network is wifi networks, the nodal information for the wifi networks that are stored with the enhancing mapping table in the ANDSF entities includes the access information SSID and BSSID and coordinate information of access network.
Table 1
If the cell ID of cell where user terminal is Cell_IDl in the access request message that the ANDSF entities are received, in the enhancing mapping table shown in table 1, search list item corresponding with Cell_IDl, access network node where understanding user terminal in cell Ce 11 _ ID1 coverages has A, B, C, and can obtain access network node, B, C nodal information.
304th, the coordinate information of the ANDSF entities user terminal position, coordinate information in the nodal information of access network node corresponding with the cell ID of cell where the user terminal, obtains the nodal information of the access network node nearest from the user terminal.
Example, in the enhancing mapping table shown in table 1, access network node A, B, C coordinate information are respectively in the nodal information of all access network node A, B, C where user terminal in cell Cell_IDl coverages（3,4),（6,8),（5,3).ANDSF entities compare one by one（3,4), (6,8), the coordinate of (5,3) and user terminal position（2, 5) and to obtain access network node, B, C to user terminal distance be respectively ^, 25, l3, can then obtain the access network node nearest apart from the user terminal for A.So described ANDSF entities are in the enhancing mapping table shown in inquiry table 1, access network node is sent to the user terminal for A nodal information, wherein access network node A nodal information includes Wi-Fil (SSID), BS1 (BSSID) and access network node A coordinate information（3,4).
305th, the ANDSF entities send access response message to the user terminal. Here, the nodal information of the access network node nearest from the user terminal is carried in the access response message, to cause the user terminal to search for the access network node nearest from the user terminal, is accessed.
Example, the access response message that the ANDSF entities are sent to the user terminal includes the access network node Α nearest from user terminal nodal information, i.e., described access response message includes：Wi-F i 1, BS 1 and coordinate information（3,4).
306th, the user terminal receives the access response message that the ANDSF entities are sent, the access information of access network in the nodal information of the access network node nearest from the user terminal, searches for and accesses the access network node nearest from the user terminal.Example, the user terminal receives the access response message, and the access network node A included according to the access response message nodal information searches for Wi-F i l and BS 1, prepares access.Access network selection method provided in an embodiment of the present invention, ANDSF entities receive the access request message of user terminal transmission, and the cell ID of cell according to where the user terminal carried in the access request message searches the nodal information of all access network nodes in cell coverage area where enhancing mapping table obtains the user terminal；Coordinate information in the nodal information of access network node where comparing the coordinate information and the user terminal of the user terminal position carried in the access request message in cell coverage area, obtains the nodal information of the access network node nearest from the user terminal；The nodal information of the access network node nearest from the user terminal is sent to user terminal so that user terminal may search for the access network node nearest from the user terminal, be accessed.With all access network nodes where acquisition user terminal of the prior art in cell coverage area, all access network nodes are searched for compare, access network selection method provided in an embodiment of the present invention, reduces volumes of searches of the user terminal to access network node, reduces the power consumption of user terminal.Embodiment 3:The embodiments of the invention provide a kind of access network selection method, as shown in figure 4, the described method comprises the following steps：
401st, the cell ID of cell where obtaining the coordinate information and the user terminal of user terminal position.Wherein, the user terminal obtains the coordinate information of the user terminal position by internal global position system GPS or using wireless location technology first.Here, user terminal master The coordinate information of its position is obtained by two methods, one is to obtain the coordinate information of the user terminal position by internal global position system GPS, or OTDOA (Observed Time Difference of Arrival, reaching time-difference positioning mode can be used）, the wireless location technology such as CID, RFPM obtain the coordinate information of the user terminal position.Wherein, the 0TD0A technologies are that user terminal sends signal to three base stations, and the time difference for then reaching three bases further according to signal is positioned.Example, the coordinate information that the user terminal obtains its position is（5,5) the cell ID of cell where, obtaining the user terminal is Cell_IDl.Before the user terminal obtains the cell ID of cell where the coordinate information and the user terminal of itself position, ANDSF entities can send enhancing mapping table to user terminal first.The ANDSF entities send enhancing mapping table to user terminal includes two kinds of situations, one is that the ANDSF entities periodically send enhancing mapping table to user terminal, and a kind of is that ANDSF entities are received after the request that user terminal is sent again to user terminal transmission enhancing mapping table.
Wherein, the cell ID and the nodal information of the access network node in the cell of the cell that is stored with the enhancing mapping table corresponding relation, the nodal information of the access network node include：The access information and coordinate information of access network.If the access network is wifi networks, the access information of the access network includes SSID and BSSID, and the nodal information of the access network node includes：SSID, BSSID and coordinate information, the SSID refer to the unique ID of wifi access nodes, and the BSSID refers to basic service device BSS mark ID.
402nd, user terminal receives the enhancing mapping table that ANDSF entities are sent.User terminal obtains the coordinate information of oneself and is currently located after the cell ID of cell, receive the enhancing mapping table that ANDSF entities are sent, so user terminal just interacts signaling without same ANDSF entities, it internally can directly inquire about, and then can just be linked on some node.
403rd, user terminal searches the nodal information of the corresponding access network nodes of cell ID of cell where the enhancing mapping table obtains the user terminal.User terminal can search the enhancing mapping table according to the cell ID of cell where the user terminal, the nodal information of all access network nodes where obtaining the user terminal in cell coverage area.
Example, as shown in table 1, when the access network is wifi networks, the nodal information for the wifi networks that are stored with the enhancing mapping table of the ANDSF entities includes the access information SSID and BSSID and coordinate information of access network. List item corresponding with cell ID Ce l l _ IDl in look-up table 1, it is known that the access network node where user terminal in cell has A, B, C.
404th, the coordinate information of the user terminal user terminal position, coordinate information in the nodal information of access network node corresponding with the cell ID of cell where the user terminal, obtains the nodal information of the access network node nearest from the user terminal.Here, the coordinate information of all access network nodes where the nodal information of all access network nodes where the user terminal that the user terminal is obtained in cell coverage area includes user terminal in cell coverage area.The user terminal is compared the coordinate information of all nodes where the coordinate information of oneself position and oneself in cell coverage area one by one, obtains the nodal information of the access network node nearest from the user terminal.
Example, access network node A, B, C coordinate information are respectively in the nodal information of all access network node A, B, C where user terminal in cell Ce 11 _ ID1 coverages（3,4), (6,8),（5,3).User terminal compares one by one（3,4),（6,8),（5,3) with the coordinate of user terminal position（5,5) distance for obtaining access network node A, B, C to user terminal be respectively ^, 2, can then obtain the access network node nearest apart from the user terminal for C.So described ANDSF entities are in the enhancing mapping table shown in inquiry table 1, access network node is sent to the user terminal for C nodal information, wherein access network node A nodal information includes Wi-F i 3 (SS ID), BS 3 (BSS ID) and access network node C coordinate information（3,4).
405th, the access information of the access network in the nodal information of user terminal access network node nearest from the user terminal according to, searches for and accesses the access network node nearest from the user terminal.
Example, the user terminal searches for Wi-F i 3 and BS 3 according to access network node C nodal information, prepares access.
Access network selection method provided in an embodiment of the present invention, ANDSF entities receive the access request message of user terminal transmission, and the cell ID of cell according to where the user terminal carried in the access request message searches the nodal information of all access network nodes in cell coverage area where enhancing mapping table obtains the user terminal；Coordinate information in the nodal information of access network node where comparing the coordinate information and the user terminal of the user terminal position carried in the access request message in cell coverage area, obtains the nodal information of the access network node nearest from the user terminal；The nodal information of the access network node nearest from the user terminal is sent to user terminal so that user terminal may search for the access network nearest from the user terminal Node, is accessed.With all access network nodes where acquisition user terminal of the prior art in cell coverage area, all access network nodes are searched for compare, access network selection method provided in an embodiment of the present invention, reduces volumes of searches of the user terminal to access network node, reduces the power consumption of user terminal.
Embodiment 4:The embodiment of the present invention further provides the device embodiment of each step and method in the embodiment of the method realized shown in Fig. 3.The embodiments of the invention provide a kind of ANDSF entities, for performing the method in the embodiment of the method shown in Fig. 3, as shown in figure 5, the ANDSF entities include：Receiving unit 501, searching unit 502, comparing unit 503 and transmitting element 504.
Receiving unit 501, the access request message for receiving user terminal transmission, the cell ID of cell where the access request message includes the coordinate information and the user terminal of the user terminal position.Searching unit 502, the nodal information of the corresponding access network nodes of cell ID of cell where the user terminal of the receiving unit reception 501 is obtained for searching enhancing mapping table, wherein, the cell ID for the cell that is stored with the enhancing mapping table and the nodal information of the access network node in the cell corresponding relation, the nodal information of the access network node include：The access information and coordinate information of access network.Comparing unit 503, coordinate information for comparing the user terminal position, coordinate information in the nodal information of access network node corresponding with the cell ID of cell where the user terminal that the searching unit 502 is obtained, obtains the nodal information of the access network node nearest from the user terminal.Transmitting element 504, for sending access response message to the user terminal, the nodal information for the access network node nearest from the user terminal that the comparing unit 503 is obtained is carried in the access response message, to cause the user terminal to search for the access network node nearest from the user terminal, accessed.
Wherein, the access request message is medium access control MAC message, radio resource control RRC message or Access Network Info Request.The embodiments of the invention provide a kind of user terminal, for performing the method in the embodiment of the method shown in Fig. 3, as shown in fig. 6, the user terminal includes：Transmitting element 601, receiving unit 602, access unit 603.
Transmitting element 601, for sending access request message to access network discovery and selection function ANDSF entities, the cell ID of cell where the access request message includes the coordinate information and the user terminal of user terminal position.Receiving unit 602, for receiving the ANDSF entities The nodal information of the access network node nearest from the user terminal is carried in the access response message of transmission, the access response message.Access unit 603, for the access information of the access network in the nodal information of nearest from user terminal access network node according to the receiving unit 602 reception, searches for and accesses the access network node nearest from the user terminal.
Wherein, the access request message is medium access control MAC message, radio resource control RRC message or Ac ce s s Ne twor k I nf o Reque s t.
The user terminal also includes obtaining unit 604, and the obtaining unit 604 is used for, before the transmitting element 601 sends the access request message to ANDSF entities, obtains the coordinate information of the user terminal position.
The obtaining unit 604 is specifically for obtaining the coordinate information of the user terminal position, or the coordinate information for using wireless location technology to obtain the user terminal position by internal global position system GPS.
Device provided in an embodiment of the present invention, ANDSF entities receive the access request message of user terminal transmission, and the cell I D of cell according to where the user terminal carried in the access request message search the nodal information of all access network nodes in cell coverage area where enhancing mapping table obtains the user terminal；Coordinate information in the nodal information of access network node where comparing the coordinate information and the user terminal of the user terminal position carried in the access request message in cell coverage area, obtains the nodal information of the access network node nearest from the user terminal；The nodal information of the access network node nearest from the user terminal is sent to user terminal so that user terminal may search for the access network node nearest from the user terminal, be accessed.With all access network nodes where acquisition user terminal of the prior art in cell coverage area, all access network nodes are searched for compare, access network selection method provided in an embodiment of the present invention, reduces volumes of searches of the user terminal to access network node, reduces the power consumption of user terminal.
Embodiment 5:The embodiment of the present invention further provides the device embodiment of each step and method in the embodiment of the method realized shown in Fig. 4.
The embodiments of the invention provide a kind of user terminal, for performing the method in the embodiment of the method shown in Fig. 4, as shown in fig. 7, the user terminal includes：Obtaining unit 701, receiving unit 7 02, searching unit 7 03, comparing unit 7 04 and access unit 7 05.
Obtaining unit 701, the cell I D of cell where for obtaining the coordinate information and the user terminal of user terminal position.It is stored with receiving unit 702, the enhancing mapping table for receiving access network discovery and the transmission of selection function ANDSF entities, the enhancing mapping table small The cell I D in area and the nodal information of the access network node in the cell corresponding relation, the nodal information of the access network node include：The access information and coordinate information of access network.Searching unit 703, the nodal information of the corresponding access network nodes of cell ID for searching cell where the enhancing mapping table that the receiving unit 702 is received obtains the user terminal.Comparing unit 704, coordinate information for comparing the user terminal position that the obtaining unit 701 is obtained, coordinate information in the nodal information of access network node corresponding with the cell ID of cell where the user terminal that the searching unit 703 is obtained, obtains the nodal information of the access network node nearest from the user terminal.Access unit 705, for the access information of the access network in the nodal information of nearest from user terminal access network node according to the comparing unit 704 acquisition, searches for and accesses the access network node nearest from the user terminal.
The obtaining unit 701 is additionally operable to, and the coordinate information of the user terminal position is obtained by internal global position system GPS, or using the coordinate information of the wireless location technology acquisition user terminal position.
The receiving unit 702 is additionally operable to, before the obtaining unit 701 obtains the cell I D of cell where the coordinate information and the user terminal of user terminal position, receives the enhancing mapping table that the A N D S F entities are sent.
Device provided in an embodiment of the present invention, ANDSF entities receive the access request message of user terminal transmission, and the cell ID of cell according to where the user terminal carried in the access request message searches the nodal information of all access network nodes in cell coverage area where enhancing mapping table obtains the user terminal；Coordinate information in the nodal information of access network node where comparing the coordinate information and the user terminal of the user terminal position carried in the access request message in cell coverage area, obtains the nodal information of the access network node nearest from the user terminal；The nodal information of the access network node nearest from the user terminal is sent to user terminal so that user terminal may search for the access network node nearest from the user terminal, be accessed.With all access network nodes where acquisition user terminal of the prior art in cell coverage area, all access network nodes are searched for compare, access network selection method provided in an embodiment of the present invention, reduces volumes of searches of the user terminal to access network node, reduces the power consumption of user terminal.
Embodiment 6:The embodiments of the invention provide a kind of ANDSF entities, in hardware realization, transmitting element described in Fig. 5 can be transmitter or transceiver, above receiving unit can be receiver or transceiver, and the transmitting element and receiving unit can integrate composition Transmit-Receive Unit, and transceiver is embodied as corresponding to hardware.Above searching unit and comparing unit can in the form of hardware or software form It is embedded in the processor of base station.The processor can be CPU（), CPU can also single-chip microcomputer.
As shown in figure 8, the ANDSF entities include：Transmitter 801, receiver 802, memory 803 and the processor 804 being connected respectively with transmitter 801, receiver 802 and memory 803.Certainly, the ANDSF entities can also include the universal components such as baseband process component, middle radio frequency processing part, input/output unit, and the embodiment of the present invention does not do any limitation herein.Wherein, batch processing code is stored in memory 803, and processor 804 is used to call the program code stored in memory 803, for performing following operation：
Processor 804 is used for, and the access request message that user terminal is sent is received by receiver 802, the cell ID of cell where the access request message includes the coordinate information and the user terminal of the user terminal position.The processor 804, for the nodal information for the corresponding access network nodes of cell ID for searching cell where enhancing mapping table obtains the user terminal, wherein, the cell ID for the cell that is stored with the enhancing mapping table and the nodal information of the access network node in the cell corresponding relation, the nodal information of the access network node include：The access information and coordinate information of access network.The processor 804, coordinate information for comparing the user terminal position, coordinate information in the nodal information of access network node corresponding with the cell ID of cell where the user terminal, obtains the nodal information of the access network node nearest from the user terminal.The processor 804, for sending access response message to the user terminal by transmitter 801, the nodal information of the access network node nearest from the user terminal is carried in the access response message, to cause the user terminal to search for the access network node nearest from the user terminal, accessed.
Wherein, the access request message is medium access control MAC message, radio resource control RRC message or Access Network Info Request.The embodiment of the present invention additionally provides a kind of user terminal, in hardware realization, transmitting element described in Fig. 6 can be transmitter or transceiver, receiving unit can be receiver or transceiver, and the transmitting element and receiving unit can integrate composition Transmit-Receive Unit, and transceiver is embodied as corresponding to hardware.Above access unit can in the form of hardware or software form is embedded in the processor of base station.The processor can be CPU（), CPU can also single-chip microcomputer.
As shown in figure 9, the user terminal includes：Transmitter 901, receiver 902, memory 903 and the processor 904 being connected respectively with transmitter 901, receiver 902 and memory 903.Certainly, the user terminal can also include the universal components such as baseband process component, middle radio frequency processing part, input/output unit, and the embodiment of the present invention does not do any limitation herein.Wherein, memory Batch processing code is stored in 9 03, and processor 904 is used to call the program code stored in memory 9 03, for performing following operation：
Processor 904, for sending access request message to access network discovery and selection function ANDSF entities by transmitter 9 01, the cell I D of cell where the access request message includes the coordinate information and the user terminal of user terminal position.The processor 904, the nodal information of the access network node nearest from the user terminal is carried for being received by recipient 902 in the access response message that the ANDSF entities are sent, the access response message.The processor 9 04, for the access information of the access network in the nodal information according to the access network node nearest from the user terminal, searches for and accesses the access network node nearest from the user terminal.
Wherein, the access request message is medium access control MAC message, radio resource control RRC message or Ac ce s s Ne twor k I nf o Reque s t.
Affiliated processor 904 is additionally operable to, before the access request message is sent to ANDSF entities by the transmitter 901, obtains the coordinate information of the user terminal position.
The obtaining unit 604 is specifically for obtaining the coordinate information of the user terminal position, or the coordinate information for using wireless location technology to obtain the user terminal position by internal global position system GPS.
Device provided in an embodiment of the present invention, ANDSF entities receive the access request message of user terminal transmission, and the cell I D of cell according to where the user terminal carried in the access request message search the nodal information of all access network nodes in cell coverage area where enhancing mapping table obtains the user terminal；Coordinate information in the nodal information of access network node where comparing the coordinate information and the user terminal of the user terminal position carried in the access request message in cell coverage area, obtains the nodal information of the access network node nearest from the user terminal；The nodal information of the access network node nearest from the user terminal is sent to user terminal so that user terminal may search for the access network node nearest from the user terminal, be accessed.With all access network nodes where acquisition user terminal of the prior art in cell coverage area, all access network nodes are searched for compare, access network selection method provided in an embodiment of the present invention, reduces volumes of searches of the user terminal to access network node, reduces the power consumption of user terminal.
Embodiment 7:
The embodiments of the invention provide a kind of user terminal, in hardware realization, transmitting element described in Fig. 7 can be transmitter or transceiver, above receiving unit can be receiver or transceiver, and the transmitting element and receiving unit can integrate composition Transmit-Receive Unit, and transceiver is embodied as corresponding to hardware.Unit achieved above, searching unit, comparing unit and access unit can be with hard Part form or software form are embedded in the processor of base station.The processor can be CPU（), CPU can also single-chip microcomputer.
As shown in Fig. 10, the user terminal includes：Receiver 1001, memory 1 002, and the processor 1003 being connected respectively with receiver 1 001 and memory 1002.Certainly, the user terminal can also include the universal components such as baseband process component, middle radio frequency processing part, input/output unit, and the embodiment of the present invention does not do any limitation herein.Wherein, batch processing code is stored in memory 1002, and processor 1003 is used to call the program code stored in memory 1002, for performing following operation：
Processor 1 003, the cell ID of cell where for obtaining the coordinate information and the user terminal of user terminal position.The processor 1003, for receiving the enhancing mapping table that access network discovery and selection function ANDSF entities are sent by receiver 1 001, the cell I D for the cell that is stored with the enhancing mapping table and the nodal information of the access network node in the cell corresponding relation, the nodal information of the access network node include：The access information and coordinate information of access network.The processor 1003, the nodal information of the corresponding access network nodes of cell ID for searching cell where the enhancing mapping table obtains the user terminal.The processor 1003, for the coordinate information for the user terminal position for comparing acquisition, coordinate information in the nodal information of access network node corresponding with the cell ID of cell where the user terminal of acquisition, obtains the nodal information of the access network node nearest from the user terminal.The processor 1 003, for the access information of the access network in the nodal information of nearest from user terminal access network node according to acquisition, searches for and accesses the access network node nearest from the user terminal.
The processor 1003 is additionally operable to, and the coordinate information of the user terminal position is obtained by internal global position system GPS, or using the coordinate information of the wireless location technology acquisition user terminal position.
The processor 1003 is additionally operable to, before the cell ID of cell where obtaining the coordinate information and the user terminal of user terminal position, and the enhancing mapping table that the ANDSF entities are sent is received by receiver 1 001.
Device provided in an embodiment of the present invention, ANDSF entities receive the access request message of user terminal transmission, and the cell ID of cell according to where the user terminal carried in the access request message searches the nodal information of all access network nodes in cell coverage area where enhancing mapping table obtains the user terminal；Coordinate information in the nodal information of access network node where comparing the coordinate information and the user terminal of the user terminal position carried in the access request message in cell coverage area, obtains the nodal information of the access network node nearest from the user terminal； The nodal information of the access network node nearest from the user terminal is sent to user terminal so that user terminal may search for the access network node nearest from the user terminal, be accessed.With all access network nodes where acquisition user terminal of the prior art in cell coverage area, all access network nodes are searched for compare, access network selection method provided in an embodiment of the present invention, reduces volumes of searches of the user terminal to access network node, reduces the power consumption of user terminal.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can be completed by the related hardware of programmed instruction, and foregoing program can be stored in computer read/write memory medium, and the program upon execution, performs the step of including above method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or CD etc. are various can be with the medium of store program codes.
It is described above; only embodiment of the invention, but protection scope of the present invention is not limited thereto, any one skilled in the art the invention discloses technical scope in; change or replacement can be readily occurred in, should be all included within the scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.

Claims (18)

  1. Claims
    1st, a kind of access network selection method, it is characterised in that including：
    The access request message that user terminal is sent is received, the cell ID of cell where the access request message includes the coordinate information and the user terminal of the user terminal position;
    Search the nodal information of the corresponding access network nodes of cell I D of cell where enhancing mapping table obtains the user terminal, wherein, the cell ID for the cell that is stored with the enhancing mapping table and the nodal information of the access network node in the cell corresponding relation, the nodal information of the access network node include：The access information and coordinate information of access network；
    Compare the coordinate information of the user terminal position, the coordinate information in the nodal information of access network node corresponding with the cell ID of cell where the user terminal obtains the nodal information of the access network node nearest from the user terminal；
    Access response message is sent to the user terminal, the nodal information of the access network node nearest from the user terminal is carried in the access response message, to cause the user terminal to search for the access network node nearest from the user terminal, accessed.
    2nd, according to the method described in claim 1, it is characterised in that the access request message is medium access control MAC message, radio resource control RRC message or Acces s Ne twork Info Reques t.
    3rd, a kind of access network selection method, it is characterised in that including：
    Access request message is sent to access network discovery and selection function ANDSF entities, the cell ID of cell where the access request message includes the coordinate information and the user terminal of user terminal position;
    Receive the nodal information that the access network node nearest from the user terminal is carried in the access response message that the ANDSF entities are sent, the access response message；
    The access information of access network in the nodal information of the access network node nearest from the user terminal, searches for and accesses the access network node nearest from the user terminal.
    4th, method according to claim 3, it is characterised in that the access request message is medium access control MAC message, radio resource control RRC message or Acces s Ne twork Info Reques t message.
    5th, the method according to claim 3 or 4, it is characterised in that before the access request message is sent to ANDSF entities, methods described, in addition to：
    Obtain the coordinate information of the user terminal position.
    6th, method according to claim 5, it is characterised in that the acquisition user is whole The coordinate information of position is held, is specifically included：
    The coordinate information of the user terminal position is obtained by internal global position system GPS, or using the coordinate information of the wireless location technology acquisition user terminal position.
    7th, a kind of access network selection method, it is characterised in that including：
    The cell of cell where obtaining the coordinate information and the user terminal of user terminal position
    ID;
    Receive the enhancing mapping table that access network discovery and selection function ANDSF entities are sent, the cell I D for the cell that is stored with the enhancing mapping table and the nodal information of the access network node in the cell corresponding relation, the nodal information of the access network node include：The access information and coordinate information of access network；
    Search the nodal information of the corresponding access network nodes of cell I D of cell where the enhancing mapping table obtains the user terminal；
    Compare the coordinate information of the user terminal position, the coordinate information in the nodal information of access network node corresponding with the cell ID of cell where the user terminal obtains the nodal information of the access network node nearest from the user terminal；
    The access information of access network in the nodal information of the access network node nearest from the user terminal is searched for and nearest from user terminal access network node described in accessing.
    8th, method according to claim 7, it is characterised in that the coordinate information of the acquisition user terminal position, is specifically included：
    The coordinate information of the user terminal position is obtained by internal global position system GPS, or using the coordinate information of the wireless location technology acquisition user terminal position.
    9th, before method according to claim 7, the cell ID of cell where the coordinate information and the user terminal in the acquisition user terminal position, methods described also includes：
    Receive the enhancing mapping table that the ANDSF entities are sent.
    10th, a kind of access network discovery and selection function ANDSF entities, including：
    Receiving unit, the access request message for receiving user terminal transmission, the cell ID of cell where the access request message includes the coordinate information and the user terminal of the user terminal position;
    Searching unit, for the nodal information for the corresponding access network nodes of cell ID for searching cell where enhancing mapping table obtains the user terminal that the receiving unit is received, wherein, the cell ID for the cell that is stored with the enhancing mapping table and the nodal information of the access network node in the cell corresponding relation, the nodal information of the access network node include：The access letter of access network Breath and coordinate information；
    Comparing unit, coordinate information for comparing the user terminal position, coordinate information in the nodal information of access network node corresponding with the cell ID of cell where the user terminal that the searching unit is obtained, obtains the nodal information of the access network node nearest from the user terminal；Transmitting element, for sending access response message to the user terminal, the nodal information for the access network node nearest from the user terminal that the comparing unit is obtained is carried in the access response message, to cause the user terminal to search for the access network node nearest from the user terminal, accessed.
    11st, ANDSF entities according to claim 10, it is characterised in that the access request message is medium access control MAC message, radio resource control RRC message or Access Network Info Request.
    12nd, a kind of user terminal, it is characterised in that including：
    Transmitting element, for sending access request message to access network discovery and selection function ANDSF entities, the cell ID of cell where the access request message includes the coordinate information and the user terminal of user terminal position;
    Receiving unit, the nodal information of the access network node nearest from the user terminal is carried for receiving in the access response message that the ANDSF entities are sent, the access response message；
    Access unit, for the access information of the access network in the nodal information of nearest from user terminal access network node according to receiving unit reception, searches for and accesses the access network node nearest from the user terminal.
    13rd, ANDSF entities according to claim 12, it is characterised in that the access request message is medium access control MAC message, radio resource control RRC message or Access Network Info Request.
    14th, the user terminal according to any one of claim 12 or 13, it is characterised in that also including obtaining unit,
    The obtaining unit, for before the transmitting element sends the access request message to ANDSF entities, obtaining the coordinate information of the user terminal position.
    15th, ANDSF entities according to claim 14, it is characterized in that, the obtaining unit specifically for, the coordinate information of the user terminal position is obtained by internal global position system GPS, or using the coordinate information of the wireless location technology acquisition user terminal position.
    16th, a kind of user terminal, it is characterised in that including： Obtaining unit, the cell ID of cell where for obtaining the coordinate information and the user terminal of user terminal position;
    Receiving unit, for receiving the enhancing mapping table that access network discovery and selection function ANDSF entities are sent, the cell ID for the cell that is stored with the enhancing mapping table and the nodal information of the access network node in the cell corresponding relation, the nodal information of the access network node include：The access information and coordinate information of access network；
    Searching unit, the nodal information of the corresponding access network nodes of cell ID for searching cell where the enhancing mapping table that the receiving unit is received obtains the user terminal that the receiving unit is received；
    Comparing unit, coordinate information for comparing the user terminal position that the obtaining unit is obtained, coordinate information in the nodal information of access network node corresponding with the cell ID of cell where the user terminal that the searching unit is obtained, obtains the nodal information of the access network node nearest from the user terminal；
    Access unit, for the access information of the access network in the nodal information of nearest from user terminal access network node according to comparing unit acquisition, searches for and accesses the access network node nearest from the user terminal.
    17th, user terminal according to claim 16, it is characterized in that, the obtaining unit is additionally operable to, the coordinate information of the user terminal position is obtained by internal global position system GPS, or using the coordinate information of the wireless location technology acquisition user terminal position.
    18th, user terminal according to claim 16, the receiving unit is additionally operable to, before the obtaining unit obtains the cell ID of cell where the coordinate information and the user terminal of user terminal position, the enhancing mapping table that the ANDSF entities are sent is received.
CN201380002897.5A 2013-11-19 2013-11-19 Access network selection method and apparatus Pending CN104904274A (en)

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