CN109673030B - Network re-searching method, terminal and computer storage medium - Google Patents
Network re-searching method, terminal and computer storage medium Download PDFInfo
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- CN109673030B CN109673030B CN201710960439.2A CN201710960439A CN109673030B CN 109673030 B CN109673030 B CN 109673030B CN 201710960439 A CN201710960439 A CN 201710960439A CN 109673030 B CN109673030 B CN 109673030B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
Abstract
The invention discloses a method, a terminal and a computer storage medium for network re-search, wherein the method comprises the following steps: when the NB-IOT terminal is in a bad state in the service operation process, extracting a judgment threshold value; and detecting whether to initiate network random access in the original cell or search the network in the new cell according to the judgment threshold.
Description
Technical Field
The present invention relates to network searching technologies, and in particular, to a method, a terminal, and a computer storage medium for network re-searching.
Background
Based on mature 4G technology, Narrow-Band Internet of Things (NB-IoT) based on honeycomb is taken as a new generation of Internet of Things, and original supported and broken Internet of Things can be organically unified together, so that real 'everything interconnection' is realized. Currently, when a link failure occurs during the off-network re-search process, the NB-IoT either directly initiates a random access attempt link recovery in the original cell or directly starts the search of a new cell.
By adopting the prior art, the two modes of executing network re-search through NB-IoT have disadvantages, for example, the current cell signal state is very poor, the probability of failure of trying to initiate random access is very high under the condition, and the delay of subsequent network-leaving re-search is too long; directly starting the new cell search means that the data sent in the original cell is invalid, since the NB-IoT itself has no handover function.
However, in the related art, there is no effective solution to the above drawbacks.
Disclosure of Invention
In view of the above, embodiments of the present invention are to provide a method, a terminal, and a computer storage medium for network re-search, which at least solve the disadvantages in the prior art.
The technical scheme of the embodiment of the invention is realized as follows:
the embodiment of the invention provides a network re-searching method, which comprises the following steps:
when the NB-IOT terminal is in a bad state in the service operation process, extracting a judgment threshold value;
and detecting whether to initiate network random access in the original cell or search the network in the new cell according to the judgment threshold.
In the foregoing solution, the detecting whether to initiate network random access in an original cell or perform network search in a new cell according to the determination threshold includes:
and when the characteristic value for detecting the network state is higher than the judgment threshold value, initiating the random access of the network in the original cell.
In the foregoing solution, the detecting whether to initiate network random access in an original cell or perform network search in a new cell according to the determination threshold includes:
and when the characteristic value for detecting the network state is lower than the judgment threshold value, performing network search in the new cell.
In the above scheme, initiating a random access of a network in the original cell includes:
and attempting link recovery according to the segmented table look-up operation strategy so as to randomly access the network.
In the above solution, attempting link recovery according to a segmented table lookup operation policy to randomly access the network includes:
performing segmented table look-up according to the characteristic value of the network state, and determining the maximum times of trying to perform link recovery in the original cell;
and performing link recovery according to the maximum times of performing link recovery in the original cell, if the recovery is successful, ending the data transmission, and otherwise, starting new cell search.
A terminal according to an embodiment of the present invention includes: a memory and a processor; wherein the content of the first and second substances,
the memory for storing a computer program operable on the processor;
the processor is configured to execute the following processing when the computer program is run:
when the NB-IOT terminal is in a bad state in the service operation process, extracting a judgment threshold value;
and detecting whether to initiate network random access in the original cell or search the network in the new cell according to the judgment threshold.
In the foregoing solution, the processor is further configured to, when running the computer program, further execute the following processing:
and when the characteristic value for detecting the network state is higher than the judgment threshold value, initiating the random access of the network in the original cell.
In the foregoing solution, the processor is further configured to, when running the computer program, further execute the following processing:
and when the characteristic value for detecting the network state is lower than the judgment threshold value, performing network search in the new cell.
In the foregoing solution, the processor is further configured to, when running the computer program, further execute the following processing:
and attempting link recovery according to the segmented table look-up operation strategy so as to randomly access the network.
In the foregoing solution, the processor is further configured to, when running the computer program, further execute the following processing:
performing segmented table look-up according to the characteristic value of the network state, and determining the maximum times of trying to perform link recovery in the original cell;
and performing link recovery according to the maximum times of performing link recovery in the original cell, if the recovery is successful, ending the data transmission, and otherwise, starting new cell search.
A computer storage medium of an embodiment of the invention has a computer program stored thereon, which when executed by a processor implements the steps of the method according to any of the above-mentioned schemes.
The method for re-searching the network in the embodiment of the invention comprises the following steps: when the NB-IOT terminal is in a bad state in the service operation process, extracting a judgment threshold value; and detecting whether to initiate network random access in the original cell or search the network in the new cell according to the judgment threshold.
By adopting the embodiment of the invention, the decision-making judgment branch is selectively executed based on the strategy of the judgment threshold, so that on one hand, the random access failure probability in the off-network re-search process can be reduced, the defect of overlong re-search time delay is avoided, on the other hand, the defect of data failure sent in the original cell can be avoided, and the original cell is switched and accessed into a new cell as soon as possible.
Drawings
FIG. 1 is a flow chart of a method according to an embodiment of the present invention;
FIG. 2 is a flowchart of an NB-IoT terminal offline re-search optimization according to an embodiment of the present invention
Detailed Description
The following describes the embodiments in further detail with reference to the accompanying drawings.
As shown in fig. 1, a method for re-searching a network according to an embodiment of the present invention includes:
and 102, detecting whether to initiate network random access in the original cell or search the network in the new cell according to the judgment threshold.
In the embodiment of the present invention, the network failure state used for the NB-IOT terminal in the service operation process may be a state in which a link failure occurs, and in this state, the extracted determination threshold may be a link state determination threshold. It can be detected whether to initiate network random access in the original cell or to perform network search in the new cell according to the link status decision threshold to access the network as soon as possible or again.
Taking the NB-IOT terminal as an example, when the NB-IOT terminal is in a service operation process, if a link failure occurs, by setting a link state determination threshold, combining a random access attempt link recovery procedure initiated by an original cell with a new cell search procedure, that is, when a current link state is higher than the determination threshold, attempting link recovery of the original cell; and if the current link state is lower than the judgment threshold value, directly initiating new cell search. Therefore, the method can not only furthest continue the data sending process of the original cell, but also shorten the whole network-off re-search time delay approximately.
In an embodiment of the present invention, detecting whether to initiate network random access in an original cell or perform network search in a new cell according to the determination threshold includes: when the characteristic value (such as channel quality) for detecting the network state is higher than the decision threshold value, initiating the random access of the network in the original cell, for example, initiating the random access in the original cell to attempt link recovery.
In an embodiment of the present invention, detecting whether to initiate network random access in an original cell or perform network search in a new cell according to the determination threshold includes: when the characteristic value (such as channel quality) for detecting the network state is lower than the decision threshold, the network search is carried out in the new cell, namely, the new cell search is directly started.
By adopting the embodiment of the invention, the link recovery process of the random access attempt initiated by the original cell and the new cell search process can be organically combined by setting the link state judgment threshold. According to the different comparison results between the characteristic value (such as channel quality) of the network state and the judgment threshold value, different judgment branches are selected, or the original cell is initiated to attempt the link recovery process, or the new cell is searched.
In an embodiment of the present invention, in a decision branch selected according to a comparison result between a characteristic value (e.g., channel quality) of a network state and a decision threshold, when a random access of a network is initiated in an original cell, a link recovery may be attempted according to a segmented table lookup operation policy, so as to randomly access the network. Namely: and for the judgment branch of which the current link state is higher than the judgment threshold, attempting link recovery at the random access of the original cell based on a segmented table look-up operation strategy. That is, the number of random access attempts for different link state thresholds is different.
In an embodiment of the present invention, attempting link recovery according to a segmented table lookup operation policy to randomly access the network includes: and performing segmented table look-up according to the characteristic value (such as channel quality) of the network state, and determining the maximum times of trying to perform link recovery in the original cell. Performing link recovery according to the maximum number of link recovery performed in the original cell, where the maximum number of link recovery of the original cell may be larger, for example, the channel quality is better; if the channel quality is poor, the maximum number of times of link recovery of the original cell should be small. If the recovery is successful, the data transmission is finished, otherwise, the new cell search is started.
In an embodiment, taking the NB-IOT terminal as an example, the process for the NB-IOT terminal to perform offline re-search optimization includes the following steps:
the method is used for directly starting new cell search by the NB-IOT terminal when Radio Link Failure (RLF) occurs in the data sending process of the NB-IOT terminal, if the channel quality (downlink RSRP and SINR) is lower than a judgment threshold, so that the time delay of offline re-search is greatly reduced.
And secondly, when the NB-IOT terminal generates RLF in the data sending process, if the channel quality (downlink RSRP and SINR) is higher than a judgment threshold, the NB-IOT terminal performs table lookup for the current channel quality to determine the maximum number of times of trying to recover the original cell link.
It should be noted that, if the channel quality is better, the maximum number of times of link recovery of the original cell may be larger; if the channel quality is poor, the maximum number of times of link recovery of the original cell should be small.
And thirdly, the method is used for the NB-IOT terminal to try link recovery operation, if the link recovery is successful, the data transmission is finished, and the situation that the data needs to be retransmitted in a new cell after the network failure and the re-search is avoided. And if the link recovery fails, the NB-IOT terminal starts new cell search.
It should be noted that the probability of this occurrence should be kept as small as possible by setting the parameters.
Fig. 2 shows a process for NB-IOT terminal offline re-search optimization by applying the above embodiment, including:
step 201-; otherwise, step 204 is performed.
And step 204, the channel quality is lower than a judgment threshold value and is used for the NB-IOT terminal to start new cell search.
And step 206, finishing the data transmission.
By adopting the embodiment, the method is used for the NB-IOT terminal to combine the link recovery process of the random access attempt initiated by the original cell and the new cell search process by setting the link state judgment threshold value in the service operation process if the link failure occurs, namely when the current link state is higher than the judgment threshold value, the link recovery of the original cell is attempted; and if the current link state is lower than the judgment threshold value, directly initiating new cell search. Therefore, the method can not only furthest continue the data sending process of the original cell, but also shorten the whole network-off re-search time delay approximately.
A terminal according to an embodiment of the present invention includes:
the extracting unit is used for extracting a judgment threshold when the NB-IOT terminal is in a bad state in the service operation process;
and the decision execution unit is used for detecting whether to initiate network random access in the original cell or search the network in the new cell according to the judgment threshold.
In an implementation manner of the embodiment of the present invention, the decision execution unit is further configured to: and when the characteristic value for detecting the network state is higher than the judgment threshold value, initiating the random access of the network in the original cell.
In an implementation manner of the embodiment of the present invention, the decision execution unit is further configured to: and when the characteristic value for detecting the network state is lower than the judgment threshold value, performing network search in the new cell.
In an implementation manner of the embodiment of the present invention, the decision execution unit is further configured to: and attempting link recovery according to the segmented table look-up operation strategy so as to randomly access the network.
In an implementation manner of the embodiment of the present invention, the decision execution unit is further configured to: performing segmented table look-up according to the characteristic value of the network state, and determining the maximum times of trying to perform link recovery in the original cell; and performing link recovery according to the maximum times of performing link recovery in the original cell, if the recovery is successful, ending the data transmission, and otherwise, starting new cell search.
A terminal according to an embodiment of the present invention includes: a memory and a processor; wherein the content of the first and second substances,
the memory for storing a computer program operable on the processor;
the processor is configured to execute the following processing when the computer program is run:
when the NB-IOT terminal is in a bad state in the service operation process, extracting a judgment threshold value;
and detecting whether to initiate network random access in the original cell or search the network in the new cell according to the judgment threshold.
In an implementation manner of the embodiment of the present invention, the processor is further configured to, when the computer program is executed, further execute the following processing:
and when the characteristic value for detecting the network state is higher than the judgment threshold value, initiating the random access of the network in the original cell.
In an implementation manner of the embodiment of the present invention, the processor is further configured to, when the computer program is executed, further execute the following processing:
and when the characteristic value for detecting the network state is lower than the judgment threshold value, performing network search in the new cell.
In an implementation manner of the embodiment of the present invention, the processor is further configured to, when the computer program is executed, further execute the following processing:
and attempting link recovery according to the segmented table look-up operation strategy so as to randomly access the network.
In an implementation manner of the embodiment of the present invention, the processor is further configured to, when the computer program is executed, further execute the following processing:
performing segmented table look-up according to the characteristic value of the network state, and determining the maximum times of trying to perform link recovery in the original cell;
and performing link recovery according to the maximum times of performing link recovery in the original cell, if the recovery is successful, ending the data transmission, and otherwise, starting new cell search.
A computer storage medium of an embodiment of the present invention has a computer program stored thereon, and when executed by a processor, implements processing of:
when the NB-IOT terminal is in a bad state in the service operation process, extracting a judgment threshold value;
and detecting whether to initiate network random access in the original cell or search the network in the new cell according to the judgment threshold.
In an embodiment of the present invention, when executed by a processor, the computer program further implements the following processing:
and when the characteristic value for detecting the network state is higher than the judgment threshold value, initiating the random access of the network in the original cell.
In an embodiment of the present invention, when executed by a processor, the computer program further implements the following processing:
and when the characteristic value for detecting the network state is lower than the judgment threshold value, performing network search in the new cell.
In an embodiment of the present invention, when executed by a processor, the computer program further implements the following processing:
and attempting link recovery according to the segmented table look-up operation strategy so as to randomly access the network.
In an implementation manner of the embodiment of the present invention, the processor is further configured to, when the computer program is executed, further execute the following processing:
performing segmented table look-up according to the characteristic value of the network state, and determining the maximum times of trying to perform link recovery in the original cell;
and performing link recovery according to the maximum times of performing link recovery in the original cell, if the recovery is successful, ending the data transmission, and otherwise, starting new cell search.
The integrated module according to the embodiment of the present invention may also be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as an independent product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.
Accordingly, an embodiment of the present invention further provides a computer storage medium, in which a computer program is stored, where the computer program is used to execute the method for network re-search according to the embodiment of the present invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (7)
1. A method for network re-search, the method comprising:
when the NB-IOT terminal is in a link failure state in the service operation process, extracting a link state judgment threshold;
judging whether to initiate network random access in the original cell or to search for a network in a new cell according to the link state by using a threshold value;
wherein, the determining whether to initiate network random access in the original cell or perform network search in the new cell according to the link state determination threshold comprises:
when the characteristic value for detecting the network state is higher than the link state judgment threshold value, initiating the random access of the network in the original cell; and when the characteristic value for detecting the network state is lower than the link state judgment threshold value, performing network search in the new cell.
2. The method of claim 1, wherein initiating random access of the network in the original cell comprises:
and attempting link recovery according to the segmented table look-up operation strategy so as to randomly access the network.
3. The method of claim 2, wherein attempting link recovery according to a segmented table lookup operation policy for random access to the network comprises:
performing segmented table look-up according to the characteristic value of the network state, and determining the maximum times of trying to perform link recovery in the original cell;
and performing link recovery according to the maximum times of performing link recovery in the original cell, if the recovery is successful, ending the data transmission, and otherwise, starting new cell search.
4. A terminal, characterized in that the terminal comprises: a memory and a processor; wherein the content of the first and second substances,
the memory for storing a computer program operable on the processor;
the processor is configured to execute the following processing when the computer program is run:
when the NB-IOT terminal is in a link failure state in the service operation process, extracting a link state judgment threshold;
judging whether to initiate network random access in the original cell or to search for a network in a new cell according to the link state by using a threshold value;
wherein, the processor is further configured to execute the following processing when running the computer program:
when the characteristic value for detecting the network state is higher than the link state judgment threshold value, initiating the random access of the network in the original cell; and when the characteristic value for detecting the network state is lower than the link state judgment threshold value, performing network search in the new cell.
5. The terminal of claim 4, wherein the processor, when executing the computer program, is further configured to perform the following:
and attempting link recovery according to the segmented table look-up operation strategy so as to randomly access the network.
6. The terminal of claim 5, wherein the processor, when executing the computer program, is further configured to perform the following:
performing segmented table look-up according to the characteristic value of the network state, and determining the maximum times of trying to perform link recovery in the original cell;
and performing link recovery according to the maximum times of performing link recovery in the original cell, if the recovery is successful, ending the data transmission, and otherwise, starting new cell search.
7. A computer storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 3.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101115304A (en) * | 2006-07-25 | 2008-01-30 | 华为技术有限公司 | Random access method and system |
| CN103379529A (en) * | 2012-04-26 | 2013-10-30 | 联发科技（新加坡）私人有限公司 | User equipment and method for recovering wireless link failures |
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| CN101137239B (en) * | 2007-09-28 | 2012-01-11 | 中兴通讯股份有限公司 | Random access parameter automatic optimization method |
| CN102036243B (en) * | 2009-09-29 | 2015-07-15 | 北京三星通信技术研究有限公司 | Methods for processing radio link failure report |
| WO2015010287A1 (en) * | 2013-07-24 | 2015-01-29 | 华为技术有限公司 | Cell reselection method, device and system |
| EP3048853B1 (en) * | 2015-01-26 | 2021-05-26 | ASUSTek Computer Inc. | Method and apparatus for handling transmission in a wireless communication system |
| CN110493836B (en) * | 2015-09-11 | 2021-07-27 | 展讯通信（上海）有限公司 | MTC terminal cell switching control method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101115304A (en) * | 2006-07-25 | 2008-01-30 | 华为技术有限公司 | Random access method and system |
| CN103379529A (en) * | 2012-04-26 | 2013-10-30 | 联发科技（新加坡）私人有限公司 | User equipment and method for recovering wireless link failures |
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