CN101400102A - Method, network device and terminal for selecting access network - Google Patents
Method, network device and terminal for selecting access network Download PDFInfo
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- CN101400102A CN101400102A CNA2007101615304A CN200710161530A CN101400102A CN 101400102 A CN101400102 A CN 101400102A CN A2007101615304 A CNA2007101615304 A CN A2007101615304A CN 200710161530 A CN200710161530 A CN 200710161530A CN 101400102 A CN101400102 A CN 101400102A
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Abstract
An embodiment of the invention discloses a method of selecting access network in a wireless communication system: in call building process, receiving information of building wireless connected transmitted by a terminal; acquiring access ability information of the terminal; selecting proper access network suitable for the terminal according to the access ability information. Meanwhile, an embodiment of the invention also discloses a network device for selecting the access network and a terminal. When the terminal requires to build the wireless connection, the terminal selects the access network suitable for the terminal according to the access ability of the terminal, so that the terminal is accessed to the best suitable network, thereby ensuring access success ratio of the speech service and increasing access efficiency of the wireless resources.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to a kind of method, network equipment and terminal of selecting Access Network.
Background technology
As shown in Figure 1, LTE (Long Term Evolution, Long Term Evolution) and SAE (SyetemAchitecture Evolution, System Architecture Evolution) system be one based on HSDPA (HighSpeedDownlink Packet Access, the high speed downlink packet access) pure PS (Packet Switched, packet switching) mobile communications network in territory, in described LTE/SAE system, Access Network (E-UTRAN) comprises eNB (Evolved Node B, the base-station node of evolution), connect by the S1 interface between each eNB, described S1 interface supports MME (mobile management entity) in described eNB and the core net and the multi-to-multi between the SAE GATEWAY (SAE gateway) to be connected simultaneously.
At present, because can only be in the described LTE/SAE system by the carrying of PS territory with VoIP (Voice overIP, the voice service of the mode transmission user speech business of IP based network), and owing to use the speech quality that the VoIP mode is transmitted often not have the speech quality of gsm system good, therefore, prior art is redirected to the voice call that transmits in the LTE system in the gsm system of technology maturation usually, finish transmission by the carrying of the CS in the gsm system (circuit switching) territory, to guarantee speek voice quality, improve user satisfaction.
Prior art is disclosed a kind ofly selects the method for Access Network to be to the voice call in the LTE system: network receives by what terminal sent and sets up the wireless connections request message, when carrying the VoIP sign in the described request message, then described network is that described terminal is selected other Access Networks, and after selection, send the wireless connections refuse information to described terminal, wherein, comprised the redirect message of selecting other Access Networks in the described refuse information.Described terminal according to the indication of redirect message in the described message, makes a call to other Access Networks of appointment after receiving described refuse information.
Yet in carrying out the invention process, the inventor finds that there are the following problems in the prior art:
Network receive terminal include VoIP sign set up the wireless connections request message after, when described terminal is carried out the selection of other Access Networks, because do not consider the access capability of described terminal, thereby can not guarantee that other Access Networks of selecting for terminal just necessarily are best suited for this terminal, therefore, tend to because the Access Network of selecting and be not suitable for terminal, thereby cause terminal can not normally be linked in the selected Access Network, and influenced normally carrying out of voice service, therefore, use the selected Access Network that arrives of this access network selection method in the prior art, the success rate that terminal inserts is not high.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of method, network equipment and terminal of selecting Access Network, makes network can select to be fit to the Access Network of described terminal according to the access capability of terminal, with the success rate that guarantees to insert.
A kind of method of selecting Access Network that the embodiment of the invention provides comprises: in call establishment, receiving terminal sends sets up the wireless connections request message;
Obtain the access capability information of described terminal;
Select to be fit to the Access Network of described terminal according to the access capability information of described terminal.
Based on technique scheme, the embodiment of the invention also discloses a kind of network equipment that is used to select Access Network, comprising:
Acquiring unit, be used for when receiving element receive that receiving terminal sends set up the wireless connections request message time, obtain the access capability information of described terminal;
Selected cell is used for the access capability information of the terminal obtained according to described acquiring unit, selects to be fit to the Access Network of described terminal.
Based on technique scheme, the embodiment of the invention also discloses a kind of terminal, comprising:
The access capability acquiring unit is used to obtain the access capability information of terminal;
The request message unit is used for generating and sets up the wireless connections request message, and this message comprises the access capability information of the terminal of being obtained in the described access capability acquiring unit;
Transmitting element is used for the wireless connections request message of setting up that the described request message elements generates is sent to network.
Compared with prior art, the embodiment of the invention has the following advantages:
When the present invention sets up wireless connections in terminal request, can be according to the access capability of terminal, the Access Network that select to be fit to this terminal so that terminal can be linked in the only network, has therefore guaranteed the access success rate of speech business and has improved the efficient of Radio Resource.
Description of drawings
Fig. 1 is the LTE network architecture schematic diagram of prior art;
Fig. 2 is the FB(flow block) of a kind of method embodiment of the present invention;
Fig. 3 is the FB(flow block) of the present invention's another kind method embodiment;
Fig. 4 is the FB(flow block) of another method embodiment of the present invention;
Fig. 5 is the structured flowchart of a kind of network equipment embodiment of the present invention;
Fig. 6 is the structured flowchart of the another kind of network equipment embodiment of the present invention;
Fig. 7 is the structured flowchart of a kind of terminal embodiment of the present invention;
Fig. 8 is the structured flowchart of another network equipment embodiment of the present invention;
Fig. 9 is the structured flowchart of another network equipment embodiment of the present invention.
Embodiment
A kind of method of Access Network of selecting provided by the invention is, terminal is in call establishment, when the wireless connections request message is set up in the network transmission, network is being that described terminal is when selecting Access Network, obtain the access capability information of described terminal, select to be fit to the Access Network of this terminal then according to this access capability information, so that described terminal can be linked in the network that is fit to oneself, avoided because of the terminal access capability limited, can't be linked into the situation in the individual networks, thereby guarantee the access success rate of speech business and improved the access efficiency of Radio Resource.
Initiating voip call below in conjunction with accompanying drawing with the terminal in the LTE system is example, the embodiment of the embodiment of the invention is done further elaborating according to the different acquisition methods of access capability.
As shown in Figure 2, FB(flow block) for a kind of method embodiment of the present invention, the described terminal of this embodiment is when network sends the wireless connections request message of voip call, in described message, carried the access capability information of this terminal, made network to select suitable Access Network according to the access capability information in the described request.Described method comprises:
S201: set up in the LTE system in the process of voip call, terminal sends to network and sets up the wireless connections request message.Wherein, except carrying the VoIP sign, also carried the access capability information of described terminal in the described wireless connections request message.The access capability information of described terminal can comprise: the access technology that terminal is supported, for example 2G, 3G or 2G+3G etc.; The information such as frequency range that terminal is supported.
S202: network receive described build the wireless connections request message after, from described message, extract the access capability information of described terminal;
S203: the access capability information of the described network based terminal of extracting, from wireless communication systems such as gsm system, UMTS system, cdma system or wlan system, select an Access Network that is fit to described terminal VoIP speech business transmission for this terminal.
S204: described network sends the wireless connections refuse information conduct response of setting up the wireless connections request message that terminal is sent in above-mentioned S201 to described terminal after choosing Access Network.Wherein, carry redirection information in the described wireless connections refuse information, comprised network in the described redirection information and be the indication of the Access Network that terminal selects, so that terminal can be linked in the Access Network of appointment according to described indication.
The described terminal of the foregoing description is owing to carried the access capability information of this terminal in the wireless connections message that sends to network, therefore network can be that described terminal is selected an Access Network that is fit to this terminal according to described access capability information, like this, therefore make terminal can be linked in the only Access Network, guaranteed the access success rate of speech business and improved the access efficiency of Radio Resource.
In addition, based on technique scheme, the invention also discloses a kind of method embodiment that selects Access Network, as shown in Figure 3, when this embodiment initiated wireless connections request about voip call when terminal, network obtained the access capability information of this terminal earlier to described terminal before selecting other Access Networks, select to be fit to the Access Network of described terminal then according to described access capability information, to guarantee the access success rate of described terminal.Described method comprises:
S301: set up in the LTE system in the process of voip call, terminal sends to network and sets up the wireless connections request message.Wherein, carry the VoIP sign in the described wireless connections request message.
S302: network receive described build the wireless connections request message after, send the solicited message of obtaining the terminal access capability to described terminal;
S303: described terminal sends to described network with the response message that carries self access capability information after receiving the described solicited message of obtaining the terminal access capability.Wherein, the access capability information of described terminal can comprise: the access technology that terminal is supported, for example 2G, 3G or 2G+3G etc.; The information such as frequency range that terminal is supported.
S304: the described access capability information in the described network based described response message, from wireless communication systems such as gsm system, UMTS system, cdma system or wlan system, select an Access Network that is fit to described terminal VoIP speech business transmission for this terminal.
S305: described network sends the wireless connections refuse information conduct response of setting up the wireless connections request message that terminal is sent in S301 to described terminal after choosing Access Network.Wherein, carry redirection information in the described wireless connections refuse information, comprised network in the described redirection information and be the sign of the Access Network that terminal selects, so that terminal can be linked in the Access Network of appointment according to described sign.
Network is before the terminal of setting up wireless connections for request is selected Access Network in the foregoing description, by send the request message that obtains the terminal access capability to terminal, obtain the access capability information of described terminal, so that network is when selecting Access Network, can be simultaneously with reference to described terminal access capability, select the Access Network of suitable this terminal, and then guaranteed the access success rate of speech business and improved the access efficiency of Radio Resource.
In addition, based on technique scheme, the invention also discloses a kind of method embodiment that selects Access Network, as shown in Figure 4, this embodiment network is preserved the access capability information of each terminal in advance in database, so that network can obtain the access capability information of terminal from the information of preserving in advance when selecting Access Network, select to be fit to the Access Network of described terminal then according to described access capability information, described method comprises:
S401: set up in the LTE system in the process of voip call, terminal sends to network and sets up the wireless connections request message.Wherein, carry VoIP sign and terminal iidentification in the described wireless connections request message.
S402: network receive described build the wireless connections request message after, from the information of preserving in advance, obtain the access capability information corresponding with described terminal iidentification.
S403: the access capability information of described network based described terminal, for this terminal is selected an Access Network that is fit to described terminal VoIP speech business transmission.
S404: described network sends the wireless connections refuse information conduct response of setting up the wireless connections request message that terminal is sent in S401 to described terminal after choosing Access Network.Wherein, carry redirection information in the described wireless connections refuse information, comprised network in the described redirection information and be the sign of the Access Network that terminal selects, so that terminal can be linked in the Access Network of appointment according to described sign.
When network is terminal selection Access Network, can from the information of preserving in advance, obtain the access capability information of terminal in the foregoing description, select the Access Network of suitable this terminal speech business transmission then according to described access capability information for this terminal.Therefore terminal can be linked in the most suitable Access Network, and then has guaranteed the access success rate of speech business and improved the access efficiency of Radio Resource.
Wherein, the access capability information of terminal can be kept in the memory devices such as database server in the network in advance in the foregoing description, and the network equipment that is used for being redirected can obtain the access capability information of terminal from described database server; Perhaps, the access capability information of described terminal can also directly be kept at the described network equipment that is used for being redirected.
Need to prove, at above-mentioned Fig. 2 to the method embodiment shown in Figure 4, when network is terminal selection Access Network, network is not limited in the access capability of considering described terminal, in addition, network also can be considered the quality requirement of the current speech business of described terminal to apply simultaneously, and the factors such as intensity of traffic of alternative access network.
In addition, need to prove, one of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in the computer read/write memory medium, simultaneously, the software of this program correspondence also can be used as independently production marketing or use.Wherein, described storage medium can be ROM/RAM, magnetic disc, CD etc.
Based on technique scheme, the embodiment of the invention also discloses a kind of network equipment that is used to select Access Network, described network equipment can be integrated on the eNB in the LTE network, perhaps, can also be arranged in the base station of other mobile communications networks or the network equipment that other are used to be redirected, as shown in Figure 5, structured flowchart for a kind of network equipment embodiment of the present invention, described network equipment comprises: receiving element 501, acquiring unit 502, selected cell 503, wherein
Set up in the LTE system in the process of calling out such as VoIP business etc., described receiving element 501 is used to receive by what terminal sent sets up the wireless connections request message; Described acquiring unit 502, be used for when receiving element 501 received that receiving terminal sends set up the wireless connections request message time, obtain the access capability information of described terminal; Wherein, described access capability information can comprise: the access technology that terminal is supported, for example 2G, 3G or 2G+3G etc.; The information such as frequency range that terminal is supported.Described selected cell 503, the access capability information that is used for the terminal obtained according to described acquiring unit 503 is that this terminal is selected an Access Network that is fit to described terminal from wireless communication systems such as gsm system, UMTS system, cdma system or wlan system.
Then, after choosing Access Network, the indication information of the Access Network that the network equipment that is used for being redirected is selected with described selected cell 503 again is carried in the wireless connections refuse information, as described response of setting up the wireless connections request message, terminal together sends to described terminal by the transmitting element (not shown) in the redirecting network equipment at place, so that can be linked in the Access Network of appointment according to described indication.
In the foregoing description when terminal request is set up wireless connections, the acquiring unit 502 of network equipment described in the network can be when selecting Access Network, obtain the access capability information of described terminal, select to be fit to the Access Network of described terminal then according to the access capability information that is obtained by described selected cell 503, therefore make terminal can be linked in the only Access Network, guaranteed the access success rate of speech business and improved the access efficiency of Radio Resource.
In addition, the invention also discloses a kind of network equipment embodiment, on basis based on above-mentioned network equipment embodiment shown in Figure 5, when having carried the access capability information of this terminal in the wireless connections request message that terminal sends, described network equipment can directly obtain the access capability information of described terminal from described message, as shown in Figure 6, structured flowchart for the another kind of network equipment embodiment of the present invention, this embodiment is on above-mentioned basis embodiment illustrated in fig. 5, and the acquiring unit 502 in the described network equipment comprises:
Meanwhile, the embodiment of the invention also discloses a kind of terminal, this terminal can match with network equipment embodiment shown in Figure 6, constitute a communication system, in call establishment, described terminal can be carried at the access capability information of self and set up in the wireless connections request message, together sends to network, carries out reference during for the redirecting network choice of equipment Access Network in the network.As shown in Figure 7, described terminal comprises:
Access capability acquiring unit 701 is used to obtain the access capability information of terminal; Wherein, the access capability information of described terminal can comprise: the access technology that terminal is supported, for example 2G, 3G or 2G+3G etc.; The information such as frequency range that terminal is supported.
Request message unit 702 is used for generating and setting up the wireless connections request message when setting up calling, and this message comprises the access capability information that is obtained in the described access capability acquiring unit 701.Then, described terminal can send to network with the wireless connections request message of setting up that is generated in the described request message elements 702 by transmitting element 703, carries out selection to the Access Network of described terminal for the network based described access capability of setting up in the wireless connections request message.
The foregoing description be applicable to when terminal send set up the access capability information that carries terminal in the wireless connections request message time, acquiring unit 502 in the described network equipment can be by first extraction unit 5021 from the described access capability information that extracts terminal the wireless connections request message of setting up, so that selected cell 503 can select to be fit to the Access Network of described terminal according to the access capability information that obtained, thereby guaranteed the access success rate of speech business and improved the access efficiency of Radio Resource.
In addition, the invention also discloses a kind of network equipment embodiment, on basis based on above-mentioned network equipment embodiment shown in Figure 5, when terminal request is set up in the process of wireless connections, when selecting Access Network for terminal, described network equipment can be to the access capability of this terminal of query field of terminal, select to be fit to the Access Network of this terminal then according to the response of terminal, as shown in Figure 8, structured flowchart for the another kind of network equipment embodiment of the present invention, this embodiment is on above-mentioned basis embodiment illustrated in fig. 5, and the acquiring unit 502 in the described network equipment comprises:
Access capability request unit 5022, be used for when described receiving element 501 receive that terminal sends set up the wireless connections request message time, the request message of terminal access capability information is obtained in generation, and this message is sent to described terminal by the transmitting element (not shown) in the redirecting network equipment at place;
In addition, the invention also discloses a kind of network equipment embodiment, on basis based on above-mentioned network equipment embodiment shown in Figure 5, when terminal request is set up in the process of wireless connections, when selecting Access Network for terminal, described network equipment can obtain the access capability information corresponding with described terminal iidentification from the information of preserving in advance, select to be fit to the Access Network of this terminal then according to described access capability information, as shown in Figure 9, structured flowchart for another network equipment embodiment of the present invention, this embodiment is on above-mentioned basis embodiment illustrated in fig. 5, and the acquiring unit 502 in the described network equipment comprises:
The 3rd extraction unit 5024, be used for when described receiving element 501 receive that terminal sends set up the wireless connections request message time, according to the sign of terminal described in this request message, from the information of preserving in advance, extract the access capability information corresponding with described terminal iidentification.According to described access capability information, select to be fit to the Access Network of described terminal for described selected cell 503.
In addition, above-mentioned Fig. 6, among Fig. 8 and the network equipment embodiment shown in Figure 9, concrete extraction unit in the described acquiring unit 502 not only can be in above-mentioned heterogeneous networks device embodiment individualism, but also can be integrated in simultaneously in the same acquiring unit 502, when existing simultaneously, described acquiring unit 502 can use different extraction units according to actual conditions, according to different separately extracting modes, extract the access capability information of described terminal, so that selected cell 503 can according to extract to such an extent that access capability information select to be fit to the Access Network of described terminal, therefore guaranteed the access success rate of speech business and improved the access efficiency of Radio Resource.
Above-described embodiment of the present invention does not constitute the qualification to protection range of the present invention.Any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1, a kind of method of selecting Access Network is characterized in that, comprising:
In call establishment, receiving terminal sends sets up the wireless connections request message;
Obtain the access capability information of described terminal;
Select to be fit to the Access Network of described terminal according to the access capability information of described terminal.
2, the method for selection Access Network as claimed in claim 1 is characterized in that, the described access capability information that comprises described terminal in the wireless connections request message of setting up;
The described access capability information that obtains described terminal is specially:
From the described access capability information that obtains described terminal the wireless connections request message of setting up.
3, the method for selection Access Network as claimed in claim 1 is characterized in that, the described access capability information that obtains described terminal specifically comprises:
Send the request message that obtains the terminal access capability information to described terminal;
Reception by described terminal return about described response of obtaining the request message of terminal access capability;
From described response message, obtain the access capability information of described terminal.
4, the method for selection Access Network as claimed in claim 1 is characterized in that, the described access capability information that obtains described terminal is specially:
According to the described sign of setting up the described terminal of carrying in the wireless connections request message, from the information of preserving in advance, obtain and the corresponding access capability information of described sign.
5, the method for selection Access Network as claimed in claim 1 is characterized in that, described calling is based on the voip call in the mobile communication system of Long Term Evolution;
The Access Network that described selection is fit to described terminal is specially:
Select to be fit to the Access Network of described terminal VoIP speech business transmission.
6, a kind of network equipment that is used to select Access Network is characterized in that, comprising:
Acquiring unit, be used for when the receiving element of network equipment receive that terminal sends set up the wireless connections request message time, obtain the access capability information of described terminal;
Selected cell is used for the access capability information of the terminal obtained according to described acquiring unit, selects to be fit to the Access Network of described terminal.
7, the network equipment that is used to select Access Network as claimed in claim 6 is characterized in that, the described access capability information that comprises described terminal in the wireless connections request message of setting up;
Described acquiring unit comprises:
First extraction unit, be used for when described receiving element receive that terminal sends set up the wireless connections request message time, from the described access capability information that extracts described terminal the wireless connections request message of setting up.
8, the network equipment that is used to select Access Network as claimed in claim 6 is characterized in that, described acquiring unit comprises:
The access capability request unit, be used for when described receiving element receive that terminal sends set up the wireless connections request message time, generate the request message that obtains the terminal access capability information, and the transmitting element of this message by described network equipment sent to described terminal;
Second extraction unit, be used for from described receiving element receive by described terminal return about the described response message that obtains the request message of terminal access capability, extract the access capability information of described terminal.
9, the network equipment that is used to select Access Network as claimed in claim 6 is characterized in that, described acquiring unit comprises:
The 3rd extraction unit, be used for when described receiving element receive that terminal sends set up the wireless connections request message time, according to the sign of terminal described in this request message, from the information of preserving in advance, extract the access capability information corresponding with described terminal iidentification.
As each described network equipment that is used to select Access Network in the claim 6 to 9, it is characterized in that 10, described network equipment is integrated on the base-station node of the evolution in the mobile communication system of Long Term Evolution.
11, a kind of terminal is characterized in that, comprising:
The access capability acquiring unit is used to obtain the access capability information of terminal;
The request message unit is used for generating and sets up the wireless connections request message, and this message comprises the access capability information of the terminal of being obtained in the described access capability acquiring unit;
Transmitting element is used for the wireless connections request message of setting up that the described request message elements generates is sent to network.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007101615304A CN101400102A (en) | 2007-09-29 | 2007-09-29 | Method, network device and terminal for selecting access network |
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| CNA2007101615304A CN101400102A (en) | 2007-09-29 | 2007-09-29 | Method, network device and terminal for selecting access network |
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| CN101400102A true CN101400102A (en) | 2009-04-01 |
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| CNA2007101615304A Pending CN101400102A (en) | 2007-09-29 | 2007-09-29 | Method, network device and terminal for selecting access network |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102291795A (en) * | 2010-06-21 | 2011-12-21 | 富士通株式会社 | Wireless communication device, wireless communication network and control router selection method |
| WO2017101118A1 (en) * | 2015-12-18 | 2017-06-22 | 华为技术有限公司 | Method and device for processing voice call |
| US10455380B2 (en) | 2015-12-18 | 2019-10-22 | Huawei Technologies Co., Ltd. | Redirection method and apparatus |
-
2007
- 2007-09-29 CN CNA2007101615304A patent/CN101400102A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102291795A (en) * | 2010-06-21 | 2011-12-21 | 富士通株式会社 | Wireless communication device, wireless communication network and control router selection method |
| US8559293B2 (en) | 2010-06-21 | 2013-10-15 | Fujitsu Limited | Wireless communication apparatus, wireless communication network and method of controlling routing selection |
| CN102291795B (en) * | 2010-06-21 | 2014-02-19 | 富士通株式会社 | Wireless communication device, wireless communication network and control router selection method |
| WO2017101118A1 (en) * | 2015-12-18 | 2017-06-22 | 华为技术有限公司 | Method and device for processing voice call |
| US10455380B2 (en) | 2015-12-18 | 2019-10-22 | Huawei Technologies Co., Ltd. | Redirection method and apparatus |
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Open date: 20090401 |