CN107333327B - Network access method and device - Google Patents
Network access method and device Download PDFInfo
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- CN107333327B CN107333327B CN201610283506.7A CN201610283506A CN107333327B CN 107333327 B CN107333327 B CN 107333327B CN 201610283506 A CN201610283506 A CN 201610283506A CN 107333327 B CN107333327 B CN 107333327B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- 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
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Abstract
The invention discloses a network access method and a device, wherein the network access method suitable for a user terminal comprises the following steps: receiving APN information from a network side, wherein the APN information comprises all or part of APN lists supported by the current network and service types corresponding to all APNs in the APN lists; and establishing a default bearer according to the APN information. By utilizing the network access method and the network access device in the embodiment of the invention, higher network access success rate can be realized.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a network access method and apparatus.
Background
The Access Point Name (APN) is a parameter that must be configured when the user terminal accesses the internet, and determines how the user terminal accesses the network.
Public Data Network (PDN) is a wide area Network established by an operator, and provides services and technologies for accessing the wide area Network, and provides Data transmission services for users.
The default bearer is a bearer providing IP connectivity, established with the establishment of a PDN link, and destroyed with the tear down of the PDN link.
The existing APN configuration and management are complex, and a user terminal generally needs to store an APN table containing relevant services of each operator or manually set an APN, but it is difficult to ensure that the APN table and user configuration can cover all or the correctness of manual setting of a user, and the success rate of network access needs to be improved.
Disclosure of Invention
The invention solves the technical problem of providing a network access method with higher success rate.
To solve the foregoing technical problem, an embodiment of the present invention provides a network access method, which is applicable to a user equipment, and includes: receiving APN information from a network side, wherein the APN information comprises all or part of APN lists supported by the current network and service types corresponding to all APNs in the APN lists; and establishing a default bearer according to the APN information.
Optionally, before receiving the APN information, the network access method further includes: and sending an attachment request message to the network side, wherein the attachment request message comprises a PDN default bearer establishment request message to request the establishment of a default bearer.
Optionally, the attach request message further includes capability information of the user equipment, where the capability information includes a service type that can be supported by the user equipment; the APN information comprises an APN list corresponding to the capability information and service types corresponding to the APNs in the APN list.
Optionally, the establishing a default bearer according to the APN information includes: and establishing a first default bearer, wherein the first default bearer is established according to the APN information after the APN information is received.
Optionally, the APN information further includes a priority of each APN in the APN list, and the first default bearer corresponds to an APN with a highest priority.
Optionally, the establishing a default bearer according to the APN information further includes: and sequentially establishing other default bearers besides the first default bearer according to the priority of each APN and the service types which can be supported by the user terminal.
Optionally, after receiving APN information from the network side, the method further includes: and storing the APN information for establishing the default bearer next time.
Optionally, the user terminal receives the APN information through an NAS message.
The embodiment of the invention also provides a network access method, which is suitable for a network side and comprises the following steps: and sending APN information to a user terminal, wherein the APN information comprises all or part of APN lists supported by the current network and service types corresponding to all APNs in the APN lists, so that the user terminal establishes default load according to the APN information.
Optionally, before issuing the APN information, the network access method further includes: and receiving an attachment request message for requesting to establish a default bearer from the user terminal, wherein the attachment request message comprises a PDN default bearer establishment request message.
Optionally, the attach request message further includes capability information of the user equipment, where the capability information includes a service type that can be supported by the user equipment; before issuing the APN information to the user terminal, the network access method further comprises the following steps: and generating the APN information according to the capability information, wherein the APN information comprises an APN list corresponding to the capability information and service types corresponding to the APNs in the APN list.
Optionally, the network side issues the APN information to the user terminal through the NAS message.
The embodiment of the present invention further provides a network access apparatus, which is suitable for a user terminal, and includes: the APN information receiving unit is suitable for receiving APN information from a network side, and the APN information comprises all or part of APN lists supported by the current network and service types corresponding to all APNs in the APN lists; and the default bearer establishing unit is suitable for establishing a default bearer according to the APN information.
Optionally, the network access apparatus further includes: an attach request message sending unit, adapted to send an attach request message to the network side, where the attach request message includes a PDN default bearer establishment request message to request establishment of a default bearer.
Optionally, the attach request message further includes capability information of the user equipment, where the capability information includes a service type that can be supported by the user equipment; the APN information comprises an APN list corresponding to the capability information and service types corresponding to the APNs in the APN list.
Optionally, the default bearer establishing unit includes a first default bearer establishing unit, and is adapted to establish a first default bearer, where the first default bearer is a first default bearer established according to the APN information after receiving the APN information.
Optionally, the APN information further includes a priority of each APN in the APN list, and the first default bearer corresponds to an APN with a highest priority.
Optionally, the default bearer establishing unit further includes a second default bearer establishing unit, and is adapted to sequentially establish other default bearers besides the first default bearer according to the priority of each APN and the service types that can be supported by the user terminal.
Optionally, the network access apparatus further includes: and the storage unit is suitable for storing the APN information so as to be used for establishing the default bearer next time.
An embodiment of the present invention further provides a network access apparatus, which is applicable to a network side, and includes: the APN information issuing unit is suitable for issuing APN information to a user terminal, wherein the APN information comprises all or part of APN lists supported by the current network and service types corresponding to all APNs in the APN lists, so that the user terminal establishes default load according to the APN information.
Optionally, the network access apparatus further includes: an attach request message receiving unit, adapted to receive an attach request message for requesting to establish a default bearer from the user equipment before issuing the APN information, where the attach request message includes a PDN default bearer establishment request message.
Optionally, the attach request message further includes capability information of the user equipment, where the capability information includes a service type that can be supported by the user equipment; the network access apparatus further includes: and the APN information generating unit is suitable for generating the APN information according to the capability information, and the APN information comprises an APN list corresponding to the capability information and service types corresponding to the APNs in the APN list.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
by receiving the APN information from the network side, all or part of APN lists supported by the current network and the service types corresponding to the APNs in the APN lists can be obtained, so that default bearing can be established according to the APN information. The default bearer is established in the above way, the user terminal does not need to store the APN table related to each service of each operator, and the user does not need to manually set the APN, so that the failure of establishing the default bearer caused by incomplete APN table stored by the user terminal or wrong user setting can be avoided, and the success rate of network access can be improved.
Drawings
Fig. 1 is a flowchart of a network access method according to an embodiment of the present invention;
fig. 2 is a data interaction diagram of a network access method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a network access device suitable for a user equipment according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a network access device suitable for use on a network side according to an embodiment of the present invention.
Detailed Description
As described above, the conventional APN configuration and management are complex, and a user terminal generally needs to store an APN table containing relevant services of each operator, or manually set an APN, but it is difficult to ensure that the APN table and user configuration can cover all or the accuracy of manual setting of a user, and the success rate of network access needs to be improved.
The embodiment of the invention can acquire all or part of APN lists supported by the current network and the service types corresponding to the APNs in the APN lists by receiving the APN information from the network side, thereby establishing the default load according to the APN information. The default bearer is established in the above way, the user terminal does not need to store the APN table related to each service of each operator, and the user does not need to manually set the APN, so that the failure of establishing the default bearer caused by incomplete APN table stored by the user terminal or wrong user setting can be avoided, and the success rate of network access can be improved.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Fig. 1 is a flowchart of a network access method according to an embodiment of the present invention.
The network access method in the embodiment of the invention is suitable for the user terminal, and the network access method can comprise the following steps:
step S12, receiving APN information from a network side, where the APN information includes all or part of APN lists supported by a current network and service types corresponding to each APN in the APN lists.
In a specific implementation, different APNs may correspond to different service types, for example: voice traffic (VoLTE) and data traffic of an IP Multimedia Subsystem (IMS) may correspond to different APNs. Different APNs and corresponding service types are issued to the user terminal, so that the user terminal can establish default bearer according to needs, for example, the default bearer can be established according to the service capability of the user terminal.
In a specific implementation, the ue may receive the APN information from the network side through a message already specified by the 3GPP protocol, for example, receive the APN information from the network side through a Non Access Stratum (NAS) message. Further, the APN information may be received via an attach response (ATTACH ACCEPT) message (specified in 3GPP protocols, e.g. TS 24.301 protocol).
Because the non-access layer protocol processes the transmission of information between the user terminal and the network side, the transmitted content can be user information or control information (such as service establishment, release or mobility management information) and is irrelevant to what kind of wireless access network is sampled, the APN information from the network side is received through the non-access layer message, the real-time performance is strong, the expandability is strong, the realization complexity of the user terminal can be reduced, and the method can be compatible with the stock user terminal in the existing real network.
In a specific implementation, before receiving the APN information, the user equipment may further send an attach request message to the network side in step S11, where the attach request message may include a PDN default bearer establishment request message to request establishment of a default bearer.
In a specific implementation, the attach request message sent in step S11 may not carry an APN, and the network side manages and configures the APN in subsequent steps.
In an embodiment of the present invention, the attach request message may further include capability information of the user equipment, where the capability information includes a service type that can be supported by the user equipment; correspondingly, the APN information received by the user terminal may include an APN list corresponding to the capability information and a service type corresponding to each APN in the APN list. Therefore, the network side generates the APN information corresponding to the capability of the user terminal aiming at the capability information of the user terminal, so that the size of the APN information can be reduced, and the occupation of the APN information on network resources can be further reduced; in addition, the user terminal does not need to further screen the APN information according to the self capability, and the efficiency of accessing the APN user terminal to the network can be further improved.
And step S13, establishing a default bearer according to the APN information.
In a specific implementation, the establishing of the default bearer may include establishing a first default bearer, that is, after receiving the APN information, establishing a first default bearer according to the APN information. The network side may specify the APN of the first default bearer, where the specification may be included in the APN information, and the user equipment may establish the first default bearer according to the specified APN.
In a specific implementation, the APN information further includes a priority of each APN in the APN list, and the first default bearer corresponds to an APN with a highest priority.
The operator may specify an order of establishing the default bearer, and if the order of establishing the default bearer is stored in the ue, the complexity of implementing the ue may be increased, and the efficiency of establishing the default bearer by the ue is low. At this time, the first default bearer may be an APN with the highest corresponding priority.
In a non-limiting example, the establishing a default bearer according to the APN information may further include: and sequentially establishing other default bearers besides the first default bearer according to the priority of each APN and the service types which can be supported by the user terminal.
For example, when a user equipment supporting VoLTE service is powered on, at least PDN default bearers of data and IMSAPN need to be established, one of the default bearers may be established first in an LTE attach procedure, and then another default bearer may be established after the attach procedure, where the establishment sequence may be indicated by a network side through the APN information.
The network side issues the priority of each APN in the APN list, and the user terminal sequentially establishes the first default bearer and other default bearers except the first default bearer according to the priority and the service type which can be supported by the user terminal, so that the task load of the user terminal can be reduced; and the APN information can be issued by the network side in the process of establishing the default bearer each time instead of being stored in the user terminal in advance, so the network side can flexibly adjust the APN information, and the sequence of establishing the default bearer by the user terminal can be ensured to meet the real-time requirement of the network side.
In a specific implementation, the network access method in the embodiment of the present invention may further include step S14, to store the APN information for use in establishing the default bearer next time. In a new connection procedure, if the APN information received again is different from the stored APN information, the stored APN information may be updated.
In an embodiment of the present invention, if APN information from a network side is stored and the APN information includes an APN priority, in a next procedure of establishing a default bearer, an APN with a highest priority may be carried when an attach request message is sent to the network side.
Fig. 2 is a data interaction diagram of a network access method according to an embodiment of the present invention.
In step S21, the user terminal 201 transmits an ATTACH REQUEST (ATTACH REQUEST) message to the network side 202.
The attach REQUEST message in the embodiment of the present invention may be customized based on an attach REQUEST message (attach REQUEST) specified by a 3GPP protocol, so that the attach REQUEST message may carry the capability information of the user terminal 201, and a PDN default bearer establishment REQUEST message (PDN CONNECTIVITY REQUEST), and the PDN default bearer establishment REQUEST message may not carry an APN.
In step S22, the network side 202 sends an attach response (ATTACH ACCEPT) message to the user terminal.
The attach response message is a message specified by the 3GPP protocol, and may be sent to the user terminal 201 by the network side 202 after receiving the attach request message. The attach response message in the embodiment of the present invention is customized based on the attach response message specified by the protocol, and may carry the APN information at the same time, and the network side 202 issues the APN information to the user terminal 201 through the attach response message.
Similar to the embodiment shown in fig. 1, the APN information may be a list of all APNs supported by the current network and a service type corresponding to each APN; when the user terminal 201 carries the capability information of the user terminal 201 in the attach request message, the APN information may also be a specific APN generated according to the capability information of the user terminal 201.
The attach response message may further include a default BEARER establishment REQUEST message (activetefault EPS BEARER CONTEXT REQUEST) specified in the protocol, where the default BEARER establishment REQUEST message may carry an APN of a first default BEARER that the network requires to establish.
In step S23, the user terminal 201 sends an ATTACH COMPLETE message (ATTACH COMPLETE) to the network side 202.
The attach complete message is a message specified by the 3GPP protocol, and may carry a DEFAULT BEARER setup response message (ACTIVATE DEFAULT EPS BEARER CONTEXT ACCEPT) to set up a DEFAULT BEARER corresponding to the APN included in the DEFAULT BEARER setup request message.
In a specific implementation, the user terminal 201 may determine whether to initiate PDN default bearer establishment for another APN according to priority information included in the received APN information and an APN specified by a first PDN default bearer specified by the network, and when the received APN information is not customized according to the capability information of the user terminal 201, may also refer to the capability information of the user terminal 201 at the same time. For example, a PDN default bearer for the data APN is established during the attach procedure, and then the PDN default bearer for the IMS may be established.
Since the attachment is completed at this time, other default bearers may be established in step S24, and the process of establishing each other default bearer in step S24 may include: the user terminal 201 sends a PDN default bearer establishment REQUEST message (PDN CONNECTIVITY REQUEST) to the network side 202; the network side 202 sends a DEFAULT BEARER establishment REQUEST message (active DEFAULT EPS BEARER CONTEXT REQUEST) to the user terminal 201; the user terminal 201 sends a DEFAULT BEARER setup response message (active DEFAULT EPS BEARER CONTEXT ACCEPT) to the network side 202. Since each specific step in step S24 is specified in the existing protocol, it is not described in detail here.
The embodiment of the invention can acquire all or part of APN lists supported by the current network and the service types corresponding to the APNs in the APN lists by receiving the APN information from the network side, thereby establishing the default load according to the APN information. The default bearer is established in the above way, the user terminal does not need to store the APN table related to each service of each operator, and the user does not need to manually set the APN, so that the failure of establishing the default bearer caused by incomplete APN table stored by the user terminal or wrong user setting can be avoided, and the success rate of network access can be improved.
Corresponding to the foregoing access method applicable to the user terminal, an embodiment of the present invention further provides a network access method applicable to the network side: and sending APN information to a user terminal, wherein the APN information comprises all or part of APN lists supported by the current network and service types corresponding to all APNs in the APN lists, so that the user terminal establishes default load according to the APN information.
In a specific implementation, before issuing the APN information, an attach request message for requesting to establish a default bearer may be further received from the user equipment, and the attach request message may include a PDN default bearer establishment request message.
In a specific implementation, the attach request message may further include capability information of the user equipment, where the capability information may include a service type that can be supported by the user equipment; before issuing the APN information to the user terminal, the network side may generate the APN information according to the capability information, and the APN information may include an APN list corresponding to the capability information and a service type corresponding to each APN in the APN list.
In specific implementation, the network side issues the APN information to the user terminal through the NAS message.
Since the network access method applicable to the network side is adapted to the access method applicable to the user terminal, the specific implementation thereof can be referred to as the access method applicable to the user terminal.
The embodiment of the invention also provides a network access device suitable for the user terminal, and the structural schematic diagram of the network access device is shown in fig. 3.
The network access device suitable for the user terminal may include:
an APN information receiving unit 31, adapted to receive APN information from a network side, where the APN information includes all or part of APN lists supported by a current network and service types corresponding to each APN in the APN lists;
a default bearer establishing unit 32, adapted to establish a default bearer according to the APN information.
In a specific implementation, the network access device suitable for the user terminal may further include: an attach request message sending unit 33, adapted to send an attach request message to the network side, where the attach request message includes a PDN default bearer establishment request message to request establishment of a default bearer.
In a specific implementation, the attach request message further includes capability information of the user equipment, where the capability information includes a service type that can be supported by the user equipment; the APN information comprises an APN list corresponding to the capability information and service types corresponding to the APNs in the APN list.
In a specific implementation, the default bearer establishing unit 32 may include a first default bearer establishing unit, which is adapted to establish a first default bearer, where the first default bearer is a first default bearer established according to the APN information after receiving the APN information.
In a specific implementation, the APN information may further include a priority of each APN in the APN list, and the first default bearer corresponds to an APN with a highest priority.
In a specific implementation, the default bearer establishing unit 32 may further include a second default bearer establishing unit, adapted to sequentially establish, according to the priority of each APN and the service type that can be supported by the user equipment, other default bearers besides the first default bearer.
In a specific implementation, the network access apparatus adapted to the user terminal may further include: a storage unit 34 adapted to store the APN information for establishing the default bearer next time.
For specific implementation of the network access apparatus suitable for the ue, reference may be made to an access method suitable for the ue, which is not described herein again.
The embodiment of the invention also provides a network access device suitable for the network side, and the structural schematic diagram of the network access device is shown in fig. 4.
The network access device suitable for the network side may include: an APN information issuing unit 41, adapted to issue APN information to a user equipment, where the APN information may include all or part of APN lists supported by a current network and service types corresponding to APNs in the APN lists, so that the user equipment establishes a default bearer according to the APN information.
In a specific implementation, the network access apparatus adapted to the network side may further include: an attach request message receiving unit 42, adapted to receive an attach request message for requesting to establish a default bearer from the user equipment before issuing the APN information, where the attach request message includes a PDN default bearer establishment request message.
In a specific implementation, the attach request message may further include capability information of the user equipment, where the capability information may include service types that can be supported by the user equipment; the network access apparatus may further include: an APN information generating unit 43, adapted to generate the APN information according to the capability information, where the APN information includes an APN list corresponding to the capability information and a service type corresponding to each APN in the APN list.
For specific implementation of the network access apparatus suitable for the network side, reference may be made to an access method suitable for the network side, which is not described herein again.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, and the storage medium may include: ROM, RAM, magnetic or optical disks, and the like.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A network access method is applicable to a user terminal, and is characterized by comprising the following steps:
sending an attachment request message to a network side, wherein the attachment request message comprises a PDN default bearer establishment request message to request the establishment of a default bearer; the attach request message further includes capability information of the user terminal, and the capability information includes service types that the user terminal can support;
receiving APN information from a network side, wherein the APN information comprises an APN list corresponding to the capability information and service types corresponding to all APNs in the APN list, and the APN list is supported by the current network; the APN information also comprises the priority of each APN in the APN list;
establishing a default bearer according to the APN information, including: and establishing a first default bearer, wherein the first default bearer is a first default bearer established according to the APN information after the APN information is received, and the first default bearer corresponds to the APN with the highest priority.
2. The network access method of claim 1, wherein establishing a default bearer according to the APN information further comprises: and sequentially establishing other default bearers besides the first default bearer according to the priority of each APN and the service types which can be supported by the user terminal.
3. The network access method of claim 1, further comprising, after receiving APN information from the network side: and storing the APN information for establishing the default bearer next time.
4. The network access method of claim 1, wherein the APN information is received by the user terminal via a NAS message.
5. A network access method is applicable to a network side, and is characterized by comprising the following steps:
receiving an attachment request message for requesting to establish a default bearer from a user terminal, wherein the attachment request message comprises a PDN default bearer establishment request message; the attach request message further includes capability information of the user terminal, and the capability information includes service types that the user terminal can support;
generating APN information according to the capability information, wherein the APN information comprises an APN list corresponding to the capability information and service types corresponding to the APNs in the APN list, and the APN list is supported by the current network;
issuing APN information to a user terminal so that the user terminal establishes a default bearer according to the APN information; the APN information also comprises the priority of each APN in the APN list; after receiving the APN information, the user terminal establishes a default bearer according to the APN information, and the method comprises the following steps: and establishing a first default bearer, wherein the first default bearer is a first default bearer established according to the APN information after the APN information is received, and the first default bearer corresponds to the APN with the highest priority.
6. The network access method of claim 5, wherein the APN information is sent to the ue via NAS message.
7. A network access apparatus adapted for a user terminal, comprising:
an attach request message sending unit, adapted to send an attach request message to a network side, where the attach request message includes a PDN default bearer establishment request message to request establishment of a default bearer; the attach request message further includes capability information of the user terminal, and the capability information includes service types that the user terminal can support;
an APN information receiving unit, adapted to receive APN information from a network side, where the APN information includes an APN list corresponding to the capability information and a service type corresponding to each APN in the APN list, and the APN list is supported by a current network; the APN information also comprises the priority of each APN in the APN list;
a default bearer establishing unit, adapted to establish a default bearer according to the APN information, including: and establishing a first default bearer, wherein the first default bearer is a first default bearer established according to the APN information after the APN information is received, and the first default bearer corresponds to the APN with the highest priority.
8. The network access apparatus of claim 7, wherein the default bearer establishing unit further comprises a second default bearer establishing unit adapted to sequentially establish other default bearers besides the first default bearer according to the priorities of the APNs and the service types that can be supported by the ue.
9. The network access apparatus of claim 7, further comprising: and the storage unit is suitable for storing the APN information so as to be used for establishing the default bearer next time.
10. A network access apparatus adapted to a network side, comprising: an attach request message receiving unit, adapted to receive an attach request message for requesting to establish a default bearer from a user terminal, where the attach request message includes a PDN default bearer establishment request message; the attach request message further includes capability information of the user terminal, and the capability information includes service types that the user terminal can support; an APN information generating unit, adapted to generate APN information according to the capability information, where the APN information includes an APN list corresponding to the capability information and a service type corresponding to each APN in the APN list; the APN information issuing unit is suitable for issuing APN information to a user terminal so that the user terminal establishes default load according to the APN information; the APN information also comprises the priority of each APN in the APN list; after receiving the APN information, the user terminal establishes a default bearer according to the APN information, and the method comprises the following steps: and establishing a first default bearer, wherein the first default bearer is a first default bearer established according to the APN information after the APN information is received, and the first default bearer corresponds to the APN with the highest priority.
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| CN108924828B (en) * | 2018-06-25 | 2021-08-31 | 中国联合网络通信集团有限公司 | APN self-adaptation method, server and terminal |
| CN111836356A (en) * | 2019-04-23 | 2020-10-27 | 北京小米移动软件有限公司 | Method, device, storage medium and mobile terminal for requesting data |
| CN115866696A (en) * | 2021-09-24 | 2023-03-28 | 华为技术有限公司 | Network access method and device |
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| CN101404827A (en) * | 2008-11-20 | 2009-04-08 | 深圳华为通信技术有限公司 | Mobile terminal, network server and method for launching grouping service by mobile terminal |
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| US20150230164A1 (en) * | 2014-02-11 | 2015-08-13 | Robert Morcos | Method and system for managing multiple access point names |
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| CN101222768A (en) * | 2008-01-31 | 2008-07-16 | 中兴通讯股份有限公司 | Method for user's set acquiring access point name, grouping domain system |
| CN101577891A (en) * | 2008-08-22 | 2009-11-11 | 中兴通讯股份有限公司 | Method and system for downloading emergency numbers of network side |
| CN101404827A (en) * | 2008-11-20 | 2009-04-08 | 深圳华为通信技术有限公司 | Mobile terminal, network server and method for launching grouping service by mobile terminal |
| KR20130058521A (en) * | 2011-11-25 | 2013-06-04 | 주식회사 케이티 | Method, apparatus and terminal for access network selection control based on apn infromation |
| CN103369510A (en) * | 2012-04-10 | 2013-10-23 | 中兴通讯股份有限公司 | APN information configuration method and device |
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