CN114501587A - Cell access method and user terminal - Google Patents
Cell access method and user terminal Download PDFInfo
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- CN114501587A CN114501587A CN202011263081.6A CN202011263081A CN114501587A CN 114501587 A CN114501587 A CN 114501587A CN 202011263081 A CN202011263081 A CN 202011263081A CN 114501587 A CN114501587 A CN 114501587A
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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
- H04W48/20—Selecting an access point
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Abstract
The invention discloses a cell access method, which comprises the following steps: acquiring external access information, wherein the access information comprises operator network information to be accessed and access priority information, and the access priority information at least comprises frequency band priority information; determining a cell corresponding to the operator network information to be accessed; and determining a cell to be accessed according to the access priority information. According to the cell access method provided by the invention, the user terminal can determine the cell of the operator network to be accessed according to the operator network information to be accessed acquired from the outside, and then determine the current cell to be accessed from the cell of the operator network to be accessed according to the priority information which is acquired from the outside and at least comprises the frequency band priority information. The invention also provides a user terminal.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a cell access method and a user terminal.
Background
At present, a terminal basically implements Network access after international roaming based on a 3GPP (3rd Generation Partnership Project) standard flow, that is, a Network is first searched based on a PLMN (Public Land Mobile Network), and the priority order of the Network is generally RPLMN (Network PLMN of last Network injection of Registered PLMN Mobile phone), HPLMN (Home PLMN ), EHPLMN (Equivalent Home PLMN, Equivalent Home PLMN), and PPLMN (preferred PLMN); then, network searching is performed based on network systems, for example, the network systems in china include 5G NR (5th generation Mobile network New Radio, New air interface of fifth generation Mobile Communication technology), LTE (Long Term Evolution), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, Time Division Synchronous Code Division Multiple Access), GSM (Global System for Mobile Communication), etc., but the search sequences of the network systems of various manufacturers are not completely the same; and finally, trying to access each cell in sequence.
However, the standard cannot be applied to some special scenarios of international roaming, such as: the problem of preferential access to a certain operator network after international roaming.
Disclosure of Invention
Therefore, the invention provides a cell access method and a user terminal, which aim to solve the problem that the international roaming user can not preferentially access to an operator network because the international roaming user only searches for the network based on the 3GPP standard process in the prior art.
In order to achieve the above object, the present invention provides a cell access method, including:
acquiring external access information, wherein the access information comprises operator network information to be accessed and access priority information, and the access priority information at least comprises frequency band priority information;
determining a cell corresponding to the operator network information to be accessed;
and determining a cell to be accessed according to the access priority information.
In some embodiments, the obtaining external access information includes: and acquiring access information in a mode of scanning the two-dimensional code.
In some embodiments, the operator network information comprises public land mobile network, PLMN, information of a predetermined operator network.
In some embodiments, the determining, according to the access priority information, a cell to be accessed includes: and determining a cell to be accessed according to the network system priority information and the frequency band priority information.
In some embodiments, the determining a cell to be accessed according to the network system priority information and the frequency band priority information includes:
sequencing the cells corresponding to the operator network information to be accessed according to the network standard priority information to obtain a first cell sequence;
respectively sequencing the cells with the same network system in the first cell sequence according to the frequency band priority information to obtain a second cell sequence;
and determining a cell to be accessed according to the second cell sequence.
In some embodiments, after the determining a cell to access according to the second cell sequence, the method further comprises:
accessing the cell to be accessed;
and if the cell to be accessed is not successfully accessed, determining the cell to be accessed according to the second cell sequence.
The present invention also provides a user terminal, comprising:
the system comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring external access information, the access information comprises operator network information to be accessed and access priority information, and the access priority information at least comprises frequency band priority information;
the processing module is used for determining a cell corresponding to the operator network information to be accessed; and the cell to be accessed is determined according to the access priority information.
In some embodiments, the obtaining module is configured to obtain the access information by scanning a two-dimensional code.
In some embodiments, the operator network information comprises public land mobile network, PLMN, information of a predetermined operator network.
In some embodiments, the access priority information further includes network system priority information, and the processing module is configured to determine a cell to be accessed according to the network system priority information and the frequency band priority information.
The invention has the following advantages:
according to the cell access method provided by the embodiment of the invention, the user terminal can determine the cell to be accessed into the operator network according to the operator network information to be accessed, which is acquired from the outside, and then determine the current cell to be accessed from the cell to be accessed into the operator network according to the priority information which is acquired from the outside and at least comprises the frequency band priority information.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a schematic flowchart of a cell access method according to embodiment 1 of the present invention;
fig. 2 is a schematic flowchart of determining a cell to be accessed according to network system priority information and frequency band priority information according to embodiment 2 of the present invention;
fig. 3 is a schematic flowchart of accessing a cell to be accessed according to embodiment 3 of the present invention;
fig. 4 is a first schematic structural diagram of a user terminal according to embodiment 4 of the present invention;
fig. 5 is a schematic structural diagram of a user terminal according to embodiment 5 of the present invention.
Detailed Description
The following describes in detail embodiments of the present invention with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
As shown in fig. 1, an embodiment of the present invention provides a cell access method, which may include the following steps:
step 1, obtaining external access information, wherein the access information comprises operator network information to be accessed and access priority information, and the access priority information at least comprises frequency band priority information.
In the embodiment of the invention, the cell access method can be applied to user terminals which are international roaming in a certain country or region. The user terminal may obtain access information for accessing the cell from the outside, such as operator network information to be accessed, frequency band priority information, and the like.
The operator network information may include network information of a specific operator, and since different frequency bands are allocated to multiple operators for the operators to use as network coverage, the access information may also provide frequency band priority information of the specific operator.
And step 2, determining a cell corresponding to the operator network information to be accessed.
After the user terminal obtains the access information from the outside, an international roaming re-network selection mechanism is triggered, namely, the initial access cell search is carried out at the current position again so as to determine the cell corresponding to the operator network information to be accessed.
And step 3, determining the cell to be accessed according to the access priority information.
The user terminal may determine a cell to be accessed from the cells determined in step 2 at least according to the frequency band priority information acquired from the outside. And selecting the cell to be accessed according to the frequency band priority information, so that the user terminal can be ensured to be preferentially accessed to the cell with high frequency band priority.
As can be seen from steps 1 to 3, in the cell access method provided in the embodiment of the present invention, the user terminal may determine the cell to be accessed to the operator network according to the operator network information to be accessed acquired from the outside, and then determine the current cell to be accessed from the cell to be accessed to the operator network according to the priority information at least including the frequency band priority information acquired from the outside.
In some embodiments, the obtaining external access information (i.e., step 1) may include: and acquiring access information in a mode of scanning the two-dimensional code.
In the embodiment of the invention, an operator can provide two-dimension code scanning service for international roaming users at an entry and exit port and the like, the two-dimension code can carry network information of the operator to be accessed and access priority information, and the access priority information can at least comprise frequency band priority information. The international roaming user can use the user terminal to scan the two-dimension code, and activate the network reselection mechanism after obtaining the access information, namely, the current cell to be accessed is determined according to the access information and the access to the current cell to be accessed is attempted.
In some embodiments, the operator network information comprises public land mobile network, PLMN, information of a predetermined operator network.
Since PLMN information of different operator networks is generally different, if network access after international roaming is implemented based on a 3GPP standard flow, different PLMN information is not distinguished to which operator network, respectively, and a network selection process is to perform cell search based on a selected PLMN, so that it is not distinguished to which operator network a cell preferentially accessed by a user terminal belongs.
In the embodiment of the present invention, the access information obtained from the outside by the user terminal through step 1 may include PLMN information of a preset operator network. After acquiring the PLMN information of the preset operator network from the outside, the user terminal can preferentially access the cell of the preset operator network.
In some embodiments, the accessing priority information further includes network type priority information, and the determining a cell to be accessed according to the accessing priority information (i.e. step 3) may include: and determining the cell to be accessed according to the network system priority information and the frequency band priority information.
In the embodiment of the present invention, since the access information provides the preset PLMN information of the operator, the access information may also provide the network type priority corresponding to the PLMN information.
For example, there are three main carrier network companies in China, which are China Unicom network communications group, Inc. (hereinafter referred to as "Unicom"), China Mobile communications group, Inc. (hereinafter referred to as "Mobile"), and China Telecommunications group, Inc. (hereinafter referred to as "Telecommunications"). The network systems of 4G (the 4Generation mobile communication technology, fourth Generation communication technology), 3G (3rd-Generation, third Generation mobile communication technology) and 2G (2-Generation wireless telephone technology, second Generation mobile communication technology) are adopted for the communication, the mobile and the telecommunication. If the PLMN, i.e. 46001, provided in the external access information is a connected PLMN, the access information may further provide a network type priority: TD-LTE/FDD-LTE (Time Division-LTE/Frequency Division duplex LTE) for 4G, WCDMA for 3G, and GSM for 2G. If the external access information provides the mobile PLMN, that is, 46000, the access information may also provide a network system priority: TD-LTE of 4G, TD-SCDMA of 3G, and GSM of 2G.
It should be noted that the network systems adopted by different operator networks are different and are not limited to the various network systems listed above, and the network system priority information provided in the access information may be determined according to the provided operator network information.
In some embodiments, as shown in fig. 2, the determining a cell to be accessed according to the network system priority information and the frequency band priority information (i.e. step 3) may include the following steps:
and 31, sequencing the cells corresponding to the network information of the operator to be accessed according to the network standard priority information to obtain a first cell sequence.
After the user terminal obtains all cells of the designated operator network through the search in step 2, all cells can be sorted for the first time according to the network system priority information to obtain a first cell sequence.
And step 32, sequencing the cells with the same network system in the first cell sequence according to the frequency band priority information to obtain a second cell sequence.
Since multiple cells of the same network type may have different frequency bands, the user terminal may also re-sequence the cells of the same network type in the first cell sequence according to the frequency band priority information, so as to obtain a second cell sequence.
And step 33, determining the cell to be accessed according to the second cell sequence.
The user terminal may select a cell to be currently accessed from the second cell sequence in turn.
In some embodiments, as shown in fig. 3, after the determining a cell to be accessed according to the second cell sequence (i.e. step 33), the following steps may be further included:
and step 34, accessing the cell to be accessed.
Step 35, judging whether the access to the cell to be accessed is successful, if so, ending the process; otherwise, step 33 is executed again until the cell access is successful.
In the embodiment of the invention, if the cell to be accessed is not accessed successfully, the cell to be accessed is determined according to the second cell sequence until the cell is accessed successfully.
It should be noted that, in the first cell sequence, the user terminal may sequence all the cells in order from high to low according to the network system priority, or sequence all the cells in order from low to high according to the network system priority. Similarly, in the second cell sequence, the user terminal may sequence all the cells in an order from high to low in the network system priority and the frequency band priority, or sequence all the cells in an order from low to high in the network system priority and the frequency band priority. However, no matter all the cells in the second cell sequence are sorted from high to low or from low to high according to the two priorities, the user terminal determines the cells to be accessed according to the sequence from high to low according to the two priorities until the cells are successfully accessed.
Based on the same technical concept, as shown in fig. 4, an embodiment of the present invention further provides a user terminal, which may include:
the acquiring module 101 is configured to acquire external access information, where the access information includes operator network information to be accessed and access priority information, and the access priority information at least includes frequency band priority information.
A processing module 102, configured to determine a cell corresponding to network information of an operator to be accessed; and the method is used for determining the cell to be accessed according to the access priority information.
In some embodiments, the acquisition module 101 is configured to: and acquiring access information in a mode of scanning the two-dimensional code.
In some embodiments, the operator network information comprises public land mobile network, PLMN, information of the predetermined operator network.
In some embodiments, the access priority information further includes network system priority information, and the processing module 102 is configured to: and determining the cell to be accessed according to the network system priority information and the frequency band priority information.
In some embodiments, the processing module 102 is configured to:
sequencing cells corresponding to operator network information to be accessed according to the network standard priority information to obtain a first cell sequence;
respectively sequencing cells with the same network system in the first cell sequence according to the frequency band priority information to obtain a second cell sequence;
and determining a cell to be accessed according to the second cell sequence.
In some embodiments, as shown in fig. 5, the user terminal further includes an access module 103, where the access module 103 is configured to access a cell to be accessed.
The processing module 102 is further configured to determine the cell to be accessed this time according to the second cell sequence if the cell to be accessed is not successfully accessed.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. A method for cell access, comprising:
acquiring external access information, wherein the access information comprises operator network information to be accessed and access priority information, and the access priority information at least comprises frequency band priority information;
determining a cell corresponding to the operator network information to be accessed;
and determining a cell to be accessed according to the access priority information.
2. The method of claim 1, wherein the obtaining external access information comprises: and acquiring access information in a mode of scanning the two-dimensional code.
3. The method of claim 1, wherein the operator network information comprises Public Land Mobile Network (PLMN) information of a predetermined operator network.
4. The method of claim 1, wherein the access priority information further includes network mode priority information, and the determining a cell to be accessed according to the access priority information includes: and determining a cell to be accessed according to the network system priority information and the frequency band priority information.
5. The method as claimed in claim 4, wherein said determining a cell to be accessed according to said network system priority information and said frequency band priority information comprises:
sequencing the cells corresponding to the operator network information to be accessed according to the network standard priority information to obtain a first cell sequence;
respectively sequencing the cells with the same network system in the first cell sequence according to the frequency band priority information to obtain a second cell sequence;
and determining a cell to be accessed according to the second cell sequence.
6. The method of claim 5, wherein after the determining the cell to access from the second cell sequence, further comprising:
accessing the cell to be accessed;
and if the cell to be accessed is not accessed successfully, determining the cell to be accessed according to the second cell sequence.
7. A user terminal, comprising:
the system comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring external access information, the access information comprises operator network information to be accessed and access priority information, and the access priority information at least comprises frequency band priority information;
the processing module is used for determining a cell corresponding to the operator network information to be accessed; and the cell to be accessed is determined according to the access priority information.
8. The user terminal of claim 7, wherein the obtaining module is configured to obtain the access information by scanning a two-dimensional code.
9. The user terminal of claim 7, wherein the operator network information comprises Public Land Mobile Network (PLMN) information of a predetermined operator network.
10. The ue of claim 7, wherein the access priority information further includes network system priority information, and the processing module is configured to determine a cell to be accessed according to the network system priority information and the frequency band priority information.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011263081.6A CN114501587A (en) | 2020-11-12 | 2020-11-12 | Cell access method and user terminal |
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| CN202011263081.6A CN114501587A (en) | 2020-11-12 | 2020-11-12 | Cell access method and user terminal |
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| CN114501587A true CN114501587A (en) | 2022-05-13 |
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