CN109640362B - Link reconstruction method, device and computer readable storage medium - Google Patents
Link reconstruction method, device and computer readable storage medium Download PDFInfo
- Publication number
- CN109640362B CN109640362B CN201710930805.XA CN201710930805A CN109640362B CN 109640362 B CN109640362 B CN 109640362B CN 201710930805 A CN201710930805 A CN 201710930805A CN 109640362 B CN109640362 B CN 109640362B
- Authority
- CN
- China
- Prior art keywords
- terminal
- determining
- state
- source cell
- cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/165—Performing reselection for specific purposes for reducing network power consumption
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the invention provides a link reconstruction method, a device and a computer readable storage medium, wherein the method comprises the following steps: determining the motion state of the terminal and the signal strength or the signal quality of a source cell; and determining to recover the connection in the source cell or determining to search for the target cell and establish the connection based on the motion state of the terminal and the signal strength or the signal quality of the source cell.
Description
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a link reestablishment method, an apparatus, and a computer-readable storage medium.
Background
Currently, for a terminal in a connected state and performing a service, when a current cell signal becomes weak due to fluctuation or the terminal moves to a coverage area of another cell, if the current serving cell signal is weak to a certain degree, a current radio link and the service are interrupted. The terminal will try to rescue the wireless link in the source cell several times, and when the number of failed attempts to recover the link in the source cell reaches a certain threshold (for example, 3 times), the terminal will not try to access in the source cell, and instead try to access in other cells with better signals.
For a stationary terminal, the failure of the wireless link of the current cell due to signal fluctuation and other reasons has a good effect, and the wireless link of the terminal in the source cell can be quickly recovered. But for the terminal in the moving state, the terminal generates about 3-4 seconds of service interruption delay (i.e. cross-cell handover is not supported) every time the terminal tries the random access process in the source cell. If the attempt is made 3 times, a service interruption delay of about 9-12 seconds or longer will be generated, the continuity of the service is seriously affected, and the user experience is poor.
Disclosure of Invention
In view of the above, embodiments of the present invention are intended to provide a link reestablishment method, apparatus, and computer-readable storage medium.
In order to achieve the above purpose, the technical solution of the embodiment of the present invention is realized as follows:
the embodiment of the invention provides a link reconstruction method, which comprises the following steps:
determining the motion state of the terminal and the signal strength or the signal quality of a source cell;
and determining to recover the connection in the source cell or determining to search for the target cell and establish the connection based on the motion state of the terminal and the signal strength or the signal quality of the source cell.
Wherein, the determining to recover the connection in the source cell or determining to search for the target cell and establish the connection based on the motion state of the terminal and the signal strength or the signal quality of the source cell includes:
when the terminal is determined to be in a mobile state, searching a target cell, and initiating random access in the target cell; alternatively, the first and second electrodes may be,
and when the terminal is determined to be in a static state and the signal intensity or the signal quality of the source cell is lower than a preset threshold, searching the target cell and initiating random access in the target cell.
Optionally, after the random access initiated by the target cell fails, the method further includes:
an attempt is made to initiate random access in the source cell.
Wherein, the determining to recover the connection in the source cell or determining to search for the target cell and establish the connection based on the motion state of the terminal and the signal strength or the signal quality of the source cell includes:
and when the terminal is determined to be in a static state and the signal strength or the signal quality of the source cell is greater than a preset threshold, initiating random access in the source cell.
Optionally, after the random access initiated in the source cell fails, the method further includes:
and searching a target cell and initiating random access in the target cell.
Optionally, the determining the motion state of the terminal includes, but is not limited to, any of the following manners:
determining the motion state of the terminal based on the mobility attribute preset by the terminal; the motion state of the terminal is the same as the operation state of the terminal indicated by the preset mobility attribute;
determining the motion state of the terminal based on the times of cell reselection occurring within preset time; when the number of times of cell reselection is larger than or equal to a preset threshold, determining that the terminal is in a moving state; otherwise, determining that the terminal is in a static state;
determining a motion state of a terminal based on a Reference Signal Received Power (RSRP) or a fluctuation of a signal-to-interference-plus-noise ratio (SINR) within a preset time;
determining a motion state of the terminal based on a variation of Global Positioning System (GPS) information of the terminal.
Wherein, the determining the motion state of the terminal based on the fluctuation of the RSRP or the SINR in the preset time includes:
if the average value or variance of the RSRP or SINR fluctuation in the preset time is smaller than the preset value, determining that the terminal is in a static state;
and if the average value or the variance of the RSRP or the SINR fluctuation in the preset time is more than or equal to the preset value, determining that the terminal is in a moving state.
Wherein the determining the motion state of the terminal based on the change situation of the GPS information of the terminal comprises:
if the GPS of the terminal is in an on state and the variation range of the GPS positioning data in the preset time is smaller than a preset value, determining that the terminal is in a static state;
and if the GPS of the terminal is in the starting state and the variation range of the GPS positioning data within the preset time is larger than or equal to the preset value, determining that the terminal is in the moving state.
An embodiment of the present invention further provides a link reestablishing apparatus, where the apparatus includes:
the determining module is used for determining the motion state of the terminal and the signal strength or the signal quality of the source cell;
and the connection module is used for determining to recover the connection in the source cell or determining to search the target cell and establish the connection based on the motion state of the terminal and the signal strength or the signal quality of the source cell.
An embodiment of the present invention further provides a link reestablishing apparatus, including: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is configured to perform the steps of the above method when running the computer program.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps of the above method.
The link reconstruction method, the device and the computer readable storage medium provided by the embodiment of the invention determine the motion state of the terminal and the signal strength or the signal quality of the source cell; and determining to recover the connection in the source cell or determining to search for the target cell and establish the connection based on the motion state of the terminal and the signal strength or the signal quality of the source cell. The embodiment of the invention can reduce the service interruption time and ensure the user experience by directly searching the target cell and rebuilding the target cell for the terminal in a moving state or a static state but with weak signals.
In addition, for the wireless link failure in a static state but caused by accidental signal fluctuation, the link recovery can be rapidly carried out by the scheme of access attempt in the source cell.
Drawings
Fig. 1 is a schematic flow chart of a link reestablishment method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a link reestablishing apparatus according to an embodiment of the present invention;
fig. 3 is a first schematic structural diagram of a connection module according to an embodiment of the present invention;
fig. 4 is a second schematic structural diagram of the connection module according to the embodiment of the present invention.
Detailed Description
The invention is described below with reference to the figures and examples.
An embodiment of the present invention provides a link reestablishing method, as shown in fig. 1, the method includes:
step 101: determining the motion state of the terminal and the signal strength or the signal quality of a source cell;
step 102: and determining to recover the connection in the source cell or determining to search for the target cell and establish the connection based on the motion state of the terminal and the signal strength or the signal quality of the source cell.
In one embodiment, the determining to recover the connection in the source cell or determining to search for the target cell and establish the connection based on the motion state of the terminal and the signal strength or the signal quality of the source cell includes:
when the terminal is determined to be in a mobile state, searching a target cell, and initiating random access in the target cell; alternatively, the first and second electrodes may be,
and when the terminal is determined to be in a static state and the signal intensity or the signal quality of the source cell is lower than a preset threshold, searching the target cell and initiating random access in the target cell.
Wherein, after the random access initiated by the target cell fails, the method further comprises:
an attempt is made to initiate random access in the source cell.
In another embodiment, the determining to recover the connection in the source cell or determining to search for the target cell and establish the connection based on the motion state of the terminal and the signal strength or the signal quality of the source cell includes:
and when the terminal is determined to be in a static state and the signal strength or the signal quality of the source cell is greater than a preset threshold, initiating random access in the source cell.
Wherein, after the random access initiated in the source cell fails, the method further comprises:
and searching a target cell and initiating random access in the target cell.
The embodiment of the invention can reduce the service interruption time and ensure the user experience by directly searching the target cell and rebuilding the target cell for the terminal in a moving state or a static state but with weak signals. In addition, for the wireless link failure in a static state but caused by accidental signal fluctuation, the link recovery can be rapidly carried out by the scheme of access attempt in the source cell.
In the embodiment of the present invention, the determining the motion state of the terminal includes, but is not limited to, any of the following manners:
determining the motion state of the terminal based on the mobility attribute preset by the terminal; the motion state of the terminal is the same as the operation state of the terminal indicated by the preset mobility attribute;
determining the motion state of the terminal based on the times of cell reselection occurring within preset time; when the number of times of cell reselection is larger than or equal to a preset threshold, determining that the terminal is in a moving state; otherwise, determining that the terminal is in a static state;
determining a motion state of a terminal based on a Reference Signal Received (RSRP) or a signal to interference plus noise ratio (SINR) fluctuation within a preset time;
determining a motion state of the terminal based on a variation of Global Positioning System (GPS) information of the terminal.
Wherein, the determining the motion state of the terminal based on the fluctuation of the RSRP or the SINR in the preset time includes:
if the average value or variance of the RSRP or SINR fluctuation in the preset time is smaller than the preset value, determining that the terminal is in a static state;
and if the average value or the variance of the RSRP or the SINR fluctuation in the preset time is more than or equal to the preset value, determining that the terminal is in a moving state.
Wherein the determining the motion state of the terminal based on the change situation of the GPS information of the terminal comprises:
if the GPS of the terminal is in an on state and the variation range of the GPS positioning data in the preset time is smaller than a preset value, determining that the terminal is in a static state;
and if the GPS of the terminal is in the starting state and the variation range of the GPS positioning data within the preset time is larger than or equal to the preset value, determining that the terminal is in the moving state.
An embodiment of the present invention further provides a link reestablishing apparatus, as shown in fig. 2, the apparatus includes:
a determining module 201, configured to determine a motion state of the terminal and a signal strength or a signal quality of the source cell;
a connection module 202, configured to determine to recover a connection in a source cell or determine to search for a target cell and establish a connection based on the motion state of the terminal and the signal strength or the signal quality of the source cell.
In one embodiment, as shown in fig. 3, the connection module 202 includes:
a first determining unit 301, configured to determine that the terminal is in a moving state; or the terminal is determined to be in a static state, and the signal strength or the signal quality of the source cell is lower than a preset threshold;
the first connection unit 302 is configured to search for a target cell and initiate random access in the target cell.
The first connection unit is further configured to attempt to initiate random access in the source cell after the target cell fails to initiate random access.
In one embodiment, as shown in fig. 4, the connection module 202 includes:
a second determining unit 401, configured to determine that the terminal is in a stationary state and the signal strength or the signal quality of the source cell is greater than a preset threshold;
a second connection unit 402, configured to initiate random access in the source cell.
The second connecting unit 402 is further configured to search for a target cell after the random access initiated in the source cell fails, and initiate a random access in the target cell.
In this embodiment of the present invention, the determining module 201 determines the motion state of the terminal, including but not limited to any of the following manners:
determining the motion state of the terminal based on the mobility attribute preset by the terminal; the motion state of the terminal is the same as the operation state of the terminal indicated by the preset mobility attribute;
determining the motion state of the terminal based on the times of cell reselection occurring within preset time; when the number of times of cell reselection is larger than or equal to a preset threshold, determining that the terminal is in a moving state; otherwise, determining that the terminal is in a static state;
determining the motion state of the terminal based on the fluctuation of RSRP or SINR within the preset time;
and determining the motion state of the terminal based on the change situation of the GPS information of the terminal.
In one embodiment, the determining module 201 determines the motion state of the terminal based on the volatility of RSRP or SINR within a preset time, including:
if the average value or variance of the RSRP or SINR fluctuation in the preset time is smaller than the preset value, determining that the terminal is in a static state;
and if the average value or the variance of the RSRP or the SINR fluctuation in the preset time is more than or equal to the preset value, determining that the terminal is in a moving state.
In one embodiment, the determining module 201 determines the motion state of the terminal based on the change of the GPS information of the terminal, including:
if the GPS of the terminal is in an on state and the variation range of the GPS positioning data in the preset time is smaller than a preset value, determining that the terminal is in a static state;
and if the GPS of the terminal is in the starting state and the variation range of the GPS positioning data within the preset time is larger than or equal to the preset value, determining that the terminal is in the moving state.
Therefore, for a terminal in a mobile state or a stationary state but with a weak signal, the embodiment of the present invention can reduce the service interruption time and ensure the user experience through a scheme of directly searching for the target cell and reestablishing in the target cell. In addition, for the wireless link failure in a static state but caused by accidental signal fluctuation, the link recovery can be rapidly carried out by the scheme of access attempt in the source cell.
An embodiment of the present invention further provides a link reestablishing apparatus, including: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is configured to execute, when running the computer program:
determining the motion state of the terminal and the signal strength or the signal quality of a source cell;
and determining to recover the connection in the source cell or determining to search for the target cell and establish the connection based on the motion state of the terminal and the signal strength or the signal quality of the source cell.
The processor is further configured to, when executing the computer program, perform:
when the terminal is determined to be in a mobile state, searching a target cell, and initiating random access in the target cell; alternatively, the first and second electrodes may be,
and when the terminal is determined to be in a static state and the signal intensity or the signal quality of the source cell is lower than a preset threshold, searching the target cell and initiating random access in the target cell.
The processor is further configured to, when the computer program is run after the random access initiation failure of the target cell, execute:
an attempt is made to initiate random access in the source cell.
The processor is further configured to, when executing the computer program, perform:
and when the terminal is determined to be in a static state and the signal strength or the signal quality of the source cell is greater than a preset threshold, initiating random access in the source cell.
The processor is further configured to, when the computer program is run after the random access initiation failure in the source cell, execute:
and searching a target cell and initiating random access in the target cell.
When the motion state of the terminal is determined, the processor is further configured to execute any one of the following manners, including but not limited to:
determining the motion state of the terminal based on the mobility attribute preset by the terminal; the motion state of the terminal is the same as the operation state of the terminal indicated by the preset mobility attribute;
determining the motion state of the terminal based on the times of cell reselection occurring within preset time; when the number of times of cell reselection is larger than or equal to a preset threshold, determining that the terminal is in a moving state; otherwise, determining that the terminal is in a static state;
determining the motion state of the terminal based on the reference signal received power RSRP or the fluctuation of the signal to interference plus noise ratio SINR within the preset time;
and determining the motion state of the terminal based on the change situation of the GPS information of the terminal.
When the motion state of the terminal is determined based on the volatility of RSRP or SINR within the preset time, the processor is further configured to execute, when the computer program is run, the following steps:
if the average value or variance of the RSRP or SINR fluctuation in the preset time is smaller than the preset value, determining that the terminal is in a static state;
and if the average value or the variance of the RSRP or the SINR fluctuation in the preset time is more than or equal to the preset value, determining that the terminal is in a moving state.
When the motion state of the terminal is determined based on the change situation of the GPS information of the terminal, the processor is further used for executing the following steps when the computer program is run:
if the GPS of the terminal is in an on state and the variation range of the GPS positioning data in the preset time is smaller than a preset value, determining that the terminal is in a static state;
and if the GPS of the terminal is in the starting state and the variation range of the GPS positioning data within the preset time is larger than or equal to the preset value, determining that the terminal is in the moving state.
It should be noted that: the apparatus provided in the foregoing embodiment is only illustrated by the division of the program modules when performing link reestablishment, and in practical applications, the processing allocation may be completed by different program modules according to needs, that is, the internal structure of the device is divided into different program modules, so as to complete all or part of the processing described above. In addition, the apparatus provided in the above embodiments and the corresponding method embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments and are not described herein again.
In an exemplary embodiment, the embodiment of the present invention also provides a computer-readable storage medium, which may be a Memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disc, or CD-ROM; or may be a variety of devices including one or any combination of the above memories, such as a mobile phone, computer, tablet device, personal digital assistant, etc.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, performs:
determining the motion state of the terminal and the signal strength or the signal quality of a source cell;
and determining to recover the connection in the source cell or determining to search for the target cell and establish the connection based on the motion state of the terminal and the signal strength or the signal quality of the source cell.
The computer program, when executed by the processor, further performs:
when the terminal is determined to be in a mobile state, searching a target cell, and initiating random access in the target cell; alternatively, the first and second electrodes may be,
and when the terminal is determined to be in a static state and the signal intensity or the signal quality of the source cell is lower than a preset threshold, searching the target cell and initiating random access in the target cell.
After the random access failure is initiated in the target cell, the computer program is executed by the processor to further perform:
an attempt is made to initiate random access in the source cell.
The computer program, when executed by the processor, further performs:
and when the terminal is determined to be in a static state and the signal strength or the signal quality of the source cell is greater than a preset threshold, initiating random access in the source cell.
After the failure of initiating the random access in the source cell, the computer program is executed by the processor to further perform:
and searching a target cell and initiating random access in the target cell.
When the motion state of the terminal is determined, the computer program is executed by the processor, and further performs any one of the following modes including but not limited to:
determining the motion state of the terminal based on the mobility attribute preset by the terminal; the motion state of the terminal is the same as the operation state of the terminal indicated by the preset mobility attribute;
determining the motion state of the terminal based on the times of cell reselection occurring within preset time; when the number of times of cell reselection is larger than or equal to a preset threshold, determining that the terminal is in a moving state; otherwise, determining that the terminal is in a static state;
determining the motion state of the terminal based on the reference signal received power RSRP or the fluctuation of the signal to interference plus noise ratio SINR within the preset time;
and determining the motion state of the terminal based on the change situation of the GPS information of the terminal.
When the motion state of the terminal is determined based on the volatility of the RSRP or the SINR within the preset time, when the computer program is executed by the processor, the method further performs:
if the average value or variance of the RSRP or SINR fluctuation in the preset time is smaller than the preset value, determining that the terminal is in a static state;
and if the average value or the variance of the RSRP or the SINR fluctuation in the preset time is more than or equal to the preset value, determining that the terminal is in a moving state.
When the movement state of the terminal is determined based on the change situation of the GPS information of the terminal, the computer program is executed by the processor, and the method further comprises the following steps:
if the GPS of the terminal is in an on state and the variation range of the GPS positioning data in the preset time is smaller than a preset value, determining that the terminal is in a static state;
and if the GPS of the terminal is in the starting state and the variation range of the GPS positioning data within the preset time is larger than or equal to the preset value, determining that the terminal is in the moving state.
The invention is described below in conjunction with the scenario embodiments.
In the embodiment, a terminal judges information such as the moving speed of the terminal or the terminal capability, the signal strength, the signal quality and the like, when a wireless link of a current cell (a source cell) fails, if the terminal is in a moving state or the terminal is in a static state but the cell signal strength or the signal quality is lower than a certain threshold, the terminal directly searches a cell with the best signal as a target cell and initiates random access in the target cell; if the target cell fails to try for a plurality of times, trying to initiate random access in the source cell;
when the terminal is in a static state and the current cell signal strength (RSRP) or signal quality (SINR) is greater than a certain threshold, the terminal will first attempt to recover the radio link in the source cell, and if the attempts fail several times, attempt to initiate random access in the target cell. The scheme comprises the following concrete implementation steps:
the method comprises the following steps: after the terminal in the connected state transmitting data detects that the current cell radio link fails, the data transmission is interrupted;
step two: the terminal determines that the terminal is currently in a mobile state or the type of the terminal is a mobile terminal; or the terminal determines that the terminal is in a static state, but the cell signal strength RSRP or the signal quality SINR is lower than a certain threshold, the following steps are executed:
1) the terminal starts cell search, searches the cell with the best signal and takes the cell as a target cell for connection reconstruction;
2) establishing synchronization with a target cell;
3) receiving a target cell broadcast message;
4) initiating random access to the target cell (through MSG 1);
5) the target cell replies a random access response (through the MSG2) to the terminal;
6) the terminal initiates RRC reestablishment information to the target cell;
7) the target cell replies an RRC reestablishment completion message to the terminal;
8) and the terminal resumes data transmission in the target cell.
Step three: the terminal determines that the terminal is in a static state or the terminal type is a static terminal, and when the current cell signal strength RSRP or the signal quality SINR is higher than a certain threshold, the following operations are executed:
1) the terminal first tries to recover the connection in the source cell;
2) initiating a random access (MSG1) at a source cell;
3) the source cell replies a random access response (MSG2) to the terminal;
4) the terminal initiates an RRC connection request message (MSG3) to the source cell;
5) the source cell replies an RRC connection establishment message (MSG4) to the terminal;
6) the terminal sends an RRC connection setup complete message (MSG5) to the source cell;
7) the terminal recovers data transmission in the source cell;
8) and if the source cell fails to try for a certain number of times, trying to initiate random access in the target cell (the steps 1-8 in the step two).
Here, the second step and the third step are not limited in the existing order, and are only convenient for description.
The judging mode of the terminal motion state can be as follows:
the first method is as follows: the terminal is preset to be a static type terminal or a mobile type terminal;
because the internet of things terminal is mostly applied to industry, the terminal is basically bound with the service type one by one. The mobility attributes of the terminals for each industry application are fixed. Such as: the terminals of the meter reading service are all static terminals; and the logistics tracking terminal is mainly a mobile terminal.
The second method comprises the following steps: the terminal judges whether the terminal is in a moving state or not according to the times of cell reselection occurring within a certain time;
such as: assuming that the inter-station distance is 500 meters, the terminal moves at the speed of 20 meters/second, and assuming that the terminal performs cell reselection for one or more times within 25 seconds, the terminal is determined to be in a moving state; otherwise, the terminal is judged to be in a static type or in a static state.
The third method comprises the following steps: judging whether the terminal is in a moving state or not based on the fluctuation of Reference Signal Received Power (RSRP) or signal-to-interference-plus-noise ratio (SINR) within a certain time; if the average value or variance of the RSRP or SINR fluctuation within a certain time is smaller than a certain value (preset value), the terminal is considered to be in a static state; and if the average value or the variance of the RSRP or the SINR fluctuation in a certain time is more than or equal to a certain value, the terminal is considered to be in a moving state.
The method is as follows: judging whether the terminal is in a moving state or not based on the change of the GPS information of the terminal; when the terminal is provided with a GPS and is turned on, if the change range of the GPS positioning data within a certain time is smaller than a certain value, the terminal is considered to be in a static state or a static type terminal; and if the GPS is turned on and the change range of the GPS positioning data within a certain time is more than or equal to a certain value, the terminal is considered to be in a mobile state or mobile type terminal.
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 (9)
1. A method for link re-establishment, the method comprising:
when the wireless link of the source cell fails, determining the motion state of the terminal and the signal strength or the signal quality of the source cell;
when the terminal is determined to be in a mobile state, searching a target cell, and initiating random access in the target cell; alternatively, the first and second electrodes may be,
when the terminal is determined to be in a static state and the signal intensity or the signal quality of the source cell is lower than a preset threshold, searching a target cell and initiating random access in the target cell; alternatively, the first and second electrodes may be,
and when the terminal is determined to be in a static state and the signal strength or the signal quality of the source cell is greater than a preset threshold, initiating random access in the source cell.
2. The method of claim 1, wherein after the failure of initiating the random access by the target cell, the method further comprises:
an attempt is made to initiate random access in the source cell.
3. The method of claim 1, wherein after the failure to initiate random access in the source cell, the method further comprises:
and searching a target cell and initiating random access in the target cell.
4. The method according to claim 1, wherein the determining the motion state of the terminal comprises any one of:
determining the motion state of the terminal based on the mobility attribute preset by the terminal; the motion state of the terminal is the same as the operation state of the terminal indicated by the preset mobility attribute;
determining the motion state of the terminal based on the times of cell reselection occurring within preset time; when the number of times of cell reselection is larger than or equal to a preset threshold, determining that the terminal is in a moving state; otherwise, determining that the terminal is in a static state;
determining the motion state of the terminal based on the reference signal received power RSRP or the fluctuation of the signal to interference plus noise ratio SINR within the preset time;
and determining the motion state of the terminal based on the change situation of the GPS information of the terminal.
5. The method of claim 4, wherein the determining the motion state of the terminal based on the fluctuation of the RSRP or the SINR within the preset time comprises:
if the average value or variance of the RSRP or SINR fluctuation in the preset time is smaller than the preset value, determining that the terminal is in a static state;
and if the average value or the variance of the RSRP or the SINR fluctuation in the preset time is more than or equal to the preset value, determining that the terminal is in a moving state.
6. The method according to claim 4, wherein the determining the motion state of the terminal based on the change of the GPS information of the terminal comprises:
if the GPS of the terminal is in an on state and the variation range of the GPS positioning data in the preset time is smaller than a preset value, determining that the terminal is in a static state;
and if the GPS of the terminal is in the starting state and the variation range of the GPS positioning data within the preset time is larger than or equal to the preset value, determining that the terminal is in the moving state.
7. An apparatus for link re-establishment, the apparatus comprising:
a determining module, configured to determine a motion state of a terminal and a signal strength or a signal quality of a source cell when a radio link of the source cell fails;
the connection module is used for searching a target cell and initiating random access in the target cell when the terminal is determined to be in a mobile state; alternatively, the first and second electrodes may be,
the system comprises a base station and a terminal, wherein the base station is used for searching a target cell and initiating random access in the target cell when the terminal is determined to be in a static state and the signal intensity or the signal quality of a source cell is lower than a preset threshold; alternatively, the first and second electrodes may be,
the method is used for determining that the terminal is in a static state and the signal strength or the signal quality of a source cell is greater than a preset threshold, and initiating random access in the source cell.
8. A link reestablishment apparatus, comprising: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is adapted to perform the steps of the method of any one of claims 1-6 when running the computer program.
9. A computer-readable 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 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710930805.XA CN109640362B (en) | 2017-10-09 | 2017-10-09 | Link reconstruction method, device and computer readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710930805.XA CN109640362B (en) | 2017-10-09 | 2017-10-09 | Link reconstruction method, device and computer readable storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109640362A CN109640362A (en) | 2019-04-16 |
| CN109640362B true CN109640362B (en) | 2021-05-28 |
Family
ID=66050873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710930805.XA Active CN109640362B (en) | 2017-10-09 | 2017-10-09 | Link reconstruction method, device and computer readable storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109640362B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110337114B (en) * | 2019-07-05 | 2022-09-13 | 中国联合网络通信集团有限公司 | RRC reestablishment optimization method, device and equipment and readable storage medium |
| CN112566222B (en) * | 2019-09-10 | 2022-07-29 | 中国移动通信有限公司研究院 | Access method, terminal and network side device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007088381A1 (en) * | 2006-02-03 | 2007-08-09 | Vodafone Group Plc | Network and method for optimizing cell reselection by using an estimation of mobility of a mobile terminal |
| CN103763730A (en) * | 2014-02-25 | 2014-04-30 | 重庆邮电大学 | Wireless link failure recovery enhancing method and device based on optimal reconstruction target cell selection |
| CN103947254A (en) * | 2011-11-18 | 2014-07-23 | 高通股份有限公司 | Methods and devices for facilitating modified cell reselection parameters and procedures when access terminals exhibit little or no mobility |
| CN105612807A (en) * | 2013-10-10 | 2016-05-25 | 高通股份有限公司 | Addressing radio link failures in wireless communication systems |
-
2017
- 2017-10-09 CN CN201710930805.XA patent/CN109640362B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007088381A1 (en) * | 2006-02-03 | 2007-08-09 | Vodafone Group Plc | Network and method for optimizing cell reselection by using an estimation of mobility of a mobile terminal |
| CN103947254A (en) * | 2011-11-18 | 2014-07-23 | 高通股份有限公司 | Methods and devices for facilitating modified cell reselection parameters and procedures when access terminals exhibit little or no mobility |
| CN105612807A (en) * | 2013-10-10 | 2016-05-25 | 高通股份有限公司 | Addressing radio link failures in wireless communication systems |
| CN103763730A (en) * | 2014-02-25 | 2014-04-30 | 重庆邮电大学 | Wireless link failure recovery enhancing method and device based on optimal reconstruction target cell selection |
Non-Patent Citations (2)
| Title |
|---|
| Discussion on RRC re-establishment RRM requirement for NB-IoT；R4-78AH-0087;Huawei, HiSilicon;《3GPP TSG-RAN WG4 Meeting #78-NB-IoT》;20160427;全文 * |
| NB-IOT - RRC connection control；R2-160479;Ericsson;《3GPP TSG-RAN WG2 Meeting NB-IOT ad-hoc》;20160113;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109640362A (en) | 2019-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110574430B (en) | Radio link monitoring and cell search techniques for high mobile speeds | |
| EP3439394A1 (en) | Resource configuration method and device, and storage medium | |
| EP3282755B1 (en) | Relay node switching method and system | |
| CN109644427B (en) | Paging method and device | |
| US20130095879A1 (en) | Call establishment in highly congested network environment | |
| CN107809769B (en) | Cell control method and device | |
| US20240129811A1 (en) | Stationing method and apparatus | |
| EP3750345A1 (en) | Further access attempts in conditional handover | |
| KR20140097556A (en) | Base station, wireless terminal, wireless communication system, and wireless communication method | |
| CN107820716B (en) | CSFB (Circuit switched Fall Back) fall result detection method and device and computer storage medium | |
| CN108347725B (en) | Communication method and apparatus | |
| CN109640362B (en) | Link reconstruction method, device and computer readable storage medium | |
| CN113747457A (en) | Configuration information acquisition method and device, user equipment and system | |
| CN113891371B (en) | Frequency point measuring method and related product | |
| CN104661251A (en) | Wireless network self-organization method and device based on mobile terminal | |
| CN113556706B (en) | Radio resource management measurement method, terminal device and network device | |
| CN108616967B (en) | Method, related device and system for updating network side notification area | |
| CN114698035A (en) | Neighbor cell measurement triggering method and device and computer readable storage medium | |
| US20210410025A1 (en) | Dynamic triggering of minimum periodic search timer | |
| WO2023044791A1 (en) | Methods and apparatuses for sidelink positioning | |
| CN115580928A (en) | Paging receiving method, device, terminal equipment and storage medium | |
| CN107896378B (en) | Detection method and device, storage medium | |
| CN107948996B (en) | Method and device for detecting LTE network access result and computer storage medium | |
| CN108064458B (en) | CSFB (Circuit switched Fall Back) fall result detection method and device and computer storage medium | |
| CN113825188B (en) | SCG processing method and device and communication equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |