CN111787584B - Data acquisition method and system based on Internet of things - Google Patents
Data acquisition method and system based on Internet of things Download PDFInfo
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- CN111787584B CN111787584B CN202010627356.3A CN202010627356A CN111787584B CN 111787584 B CN111787584 B CN 111787584B CN 202010627356 A CN202010627356 A CN 202010627356A CN 111787584 B CN111787584 B CN 111787584B
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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
- H04W36/0085—Hand-off measurements
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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
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
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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
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
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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
- 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
Abstract
The invention discloses a data acquisition method based on the Internet of things, which comprises the following steps: collecting data by the mobile terminal; monitoring, by a mobile terminal, system information transmitted by a first base station, wherein the system information includes an indication of a first link quality threshold and an indication of a second link quality threshold; monitoring, by the mobile terminal, the synchronization signal transmitted by the second base station, and determining, by the mobile terminal, a link condition of a second communication link between the mobile terminal and the second base station based on the synchronization signal transmitted by the second base station; in response to determining the link condition of the second communication link, determining, by the mobile terminal, whether the link condition of the second communication link is greater than a first link quality threshold; if the link condition of the second communication link is judged to be larger than the first link quality threshold, the mobile terminal sends a base station addition measurement report to the first base station; in response to receiving the base station addition measurement report, determining, by the first base station, whether the second base station is capable of communicating with the mobile terminal.
Description
Technical Field
The invention relates to the technical field of the internet of things, in particular to a data acquisition method and system based on the internet of things.
Background
The Internet of things (IoT), i.e., "Internet of things," is an extended and expanded network based on the Internet, and combines various information sensing devices with the Internet to form a huge network, thereby realizing the intercommunication of people, machines and things at any time and any place.
The prior art CN110572483B discloses an information acquisition method based on different types of internet of things detection devices, which is characterized by comprising defining standard state codes to form a state conversion standard; defining standard data attribute codes to form a data conversion standard, and setting a data packet decoder of the Internet of things detection equipment; analyzing a data packet of the Internet of things equipment, realizing seamless connection between various Internet of things detection equipment and Internet of things application by defining and setting a state conversion standard and a data conversion standard and analyzing, and easily managing various Internet of things detection equipment on the same platform; and converting information detected by the Internet of things detection equipment into state information and data information available for the application of the Internet of things according to the set state conversion standard and data conversion standard.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a data acquisition method and a data acquisition system based on the Internet of things, which can overcome the defects of the prior art.
In order to achieve the purpose, the invention provides a data acquisition method based on the internet of things, which is characterized by comprising the following steps of:
collecting data by the mobile terminal;
monitoring, by a mobile terminal, system information transmitted by a first base station, wherein the system information includes an indication of a first link quality threshold and an indication of a second link quality threshold;
monitoring, by the mobile terminal, the synchronization signal transmitted by the second base station, and determining, by the mobile terminal, a link condition of a second communication link between the mobile terminal and the second base station based on the synchronization signal transmitted by the second base station;
in response to determining the link condition of the second communication link, determining, by the mobile terminal, whether the link condition of the second communication link is greater than a first link quality threshold;
if the link condition of the second communication link is judged to be larger than the first link quality threshold, the mobile terminal sends a base station addition measurement report to the first base station;
determining, by the first base station, whether the second base station is capable of communicating with the mobile terminal in response to receiving the base station addition measurement report;
in response to determining that the second base station is capable of communicating with the mobile terminal, sending, by the first base station, a first handover preparation message to the mobile terminal, wherein the first handover preparation message includes at least an identity identifier of the second base station, a first RRC connection reconfiguration message, an add handover condition message, and a remove handover condition message, wherein the first RRC connection reconfiguration message includes parameters required for the mobile terminal to establish an RRC connection with the second base station, and wherein the add handover condition message indicates the first handover condition to the mobile terminal;
storing, by the mobile terminal, a first handover condition in response to receiving the first handover preparation message;
after sending the first handover preparation message to the mobile terminal, if the first base station determines that the first handover condition needs to be replaced by a second handover condition, sending, by the first base station, a second handover preparation message to the mobile terminal, wherein the second handover preparation message at least includes an identity identifier of the second base station, a second add handover condition message and a second remove handover condition message, wherein the second add handover condition message indicates the second handover condition to the mobile terminal, and wherein the second remove handover condition message indicates to the mobile terminal to discard the first handover condition;
in response to receiving the second handover preparation message, deleting, by the mobile terminal, the first handover condition and storing the second handover condition.
In a preferred embodiment, the data acquisition method based on the internet of things comprises the following steps:
storing, by the mobile terminal, a second handover condition in response to receiving the first handover preparation message and the second handover preparation message, wherein the second handover condition is one of: the link condition of the second communication link is greater than the first link condition threshold for performing a handover, an average of the link condition of the second communication link over a predetermined time is greater than the first average link condition threshold for performing a handover, or a combination thereof;
in response to storing the second switching condition, monitoring, by the mobile terminal, a link condition of the second communication link and determining, by the mobile terminal, whether the link condition of the second communication link satisfies the second switching condition;
if the link condition of the second communication link is judged to meet the second switching condition, the mobile terminal is randomly accessed to the second base station;
in response to random access to the second base station, a handover complete message is sent by the mobile terminal to the second base station and data is sent by the mobile terminal to the second base station.
In a preferred embodiment, the data acquisition method based on the internet of things comprises the following steps:
storing, by the mobile terminal, a second handover condition in response to receiving the first handover preparation message and the second handover preparation message;
monitoring, by the mobile terminal, a link condition of the second communication link in response to storing the second handover condition, while monitoring, by the mobile terminal, a link condition of a third communication link between the mobile terminal and the third base station;
sending, by the mobile terminal, a base station replacement measurement report to the first base station if the link condition of the second communication link is below the second link quality threshold and the link condition of the third communication link is above the first link quality threshold;
determining, by the first base station, whether the third base station is capable of communicating with the mobile terminal in response to receiving the base station replacement measurement report;
and in response to determining that the third base station can communicate with the mobile terminal, sending, by the first base station, a third handover preparation message to the mobile terminal, wherein the third handover preparation message includes at least an identity identifier of the third base station, a second RRC connection reconfiguration message including parameters required for the mobile terminal to establish an RRC connection with the third base station, a third addition handover condition message including the third handover condition to the mobile terminal, a third removal handover condition message, and an indication that handover to the second base station is no longer performed.
In a preferred embodiment, the data acquisition method based on the internet of things comprises the following steps:
stopping, by the mobile terminal, monitoring a link condition of the second communication link in response to receiving the third handover preparation message;
determining, by the mobile terminal, a third handover condition in response to receiving the third handover preparation message, wherein the third handover condition is one of: the link condition of the third communication link is greater than the second link condition threshold for performing a handover, an average of the link condition of the third communication link over a predetermined time is greater than the second average link condition threshold for performing a handover, or a combination thereof;
in response to determining the third handover condition, monitoring, by the mobile terminal, a link condition of the third communication link and determining, by the mobile terminal, whether the link condition of the third communication link satisfies the third handover condition;
if the link condition of the third communication link is judged to meet the third switching condition, the mobile terminal is randomly accessed to the third base station;
and responding to the random access of the third base station, sending a switching completion message to the third base station by the mobile terminal and sending data to the third base station by the mobile terminal.
In a preferred embodiment, the data acquisition method based on the internet of things comprises the following steps:
after sending the third handover preparation message to the mobile terminal, if the first base station determines that the third handover condition needs to be modified, sending a fifth handover preparation message to the mobile terminal by the first base station, wherein the fifth handover preparation message at least comprises an identity identifier of the third base station and a handover condition modification message;
modifying, by the mobile terminal, the third handover condition in response to receiving the fifth handover preparation message;
in response to the modification of the third switching condition, the mobile terminal monitors the link condition of the third communication link and judges whether the link condition of the third communication link meets the modified third switching condition;
if the link condition of the third communication link is judged to meet the modified third switching condition, the mobile terminal is randomly accessed to the third base station;
and responding to the random access of the third base station, sending a switching completion message to the third base station by the mobile terminal and sending data to the third base station by the mobile terminal.
The invention provides a data acquisition system based on the Internet of things, which is characterized by comprising the following components:
means for collecting data by a mobile terminal;
means for listening, by a mobile terminal, for system information transmitted by a first base station, wherein the system information includes an indication of a first link quality threshold and an indication of a second link quality threshold;
means for listening, by the mobile terminal, for a synchronization signal transmitted by the second base station and determining, by the mobile terminal, a link condition of a second communication link between the mobile terminal and the second base station based on the synchronization signal transmitted by the second base station;
means for determining, by the mobile terminal, whether a link condition of the second communication link is greater than a first link quality threshold in response to determining the link condition of the second communication link;
means for sending, by the mobile terminal, a base station addition measurement report to the first base station if it is determined that the link condition of the second communication link is greater than the first link quality threshold;
means for determining, by the first base station, whether the second base station is capable of communicating with the mobile terminal in response to receiving the base station addition measurement report;
means for sending, by the first base station, a first handover preparation message to the mobile terminal in response to determining that the second base station is capable of communicating with the mobile terminal, wherein the first handover preparation message includes at least an identity identifier of the second base station, a first RRC connection reconfiguration message including parameters required for the mobile terminal to establish an RRC connection with the second base station, an add handover condition message, and a remove handover condition message, wherein the add handover condition message indicates the first handover condition to the mobile terminal;
means for storing, by the mobile terminal, a first handover condition in response to receiving the first handover preparation message;
means for sending, by the first base station, a second handover preparation message to the mobile terminal after sending the first handover preparation message to the mobile terminal if the first base station determines that the first handover condition needs to be replaced with a second handover condition, wherein the second handover preparation message includes at least an identity identifier of the second base station, a second add handover condition message and a second remove handover condition message, wherein the second add handover condition message indicates the second handover condition to the mobile terminal, wherein the second remove handover condition message indicates to the mobile terminal to discard the first handover condition;
means for deleting, by the mobile terminal, the first handover condition and storing the second handover condition in response to receiving the second handover preparation message.
In a preferred embodiment, the data acquisition system based on the internet of things comprises:
means for storing, by the mobile terminal, a second handover condition in response to receiving the first handover preparation message and the second handover preparation message, wherein the second handover condition is one of: the link condition of the second communication link is greater than the first link condition threshold for performing a handover, an average of the link condition of the second communication link over a predetermined time is greater than the first average link condition threshold for performing a handover, or a combination thereof;
means for monitoring, by the mobile terminal, a link condition of the second communication link and determining, by the mobile terminal, whether the link condition of the second communication link satisfies the second handover condition in response to storing the second handover condition;
means for randomly accessing, by the mobile terminal, the second base station if it is determined that the link condition of the second communication link satisfies the second handover condition;
means for transmitting, by the mobile terminal, a handover complete message to the second base station and transmitting, by the mobile terminal, data to the second base station in response to random access to the second base station.
In a preferred embodiment, the data acquisition system based on the internet of things comprises:
means for storing, by the mobile terminal, a second handover condition in response to receiving the first handover preparation message and the second handover preparation message;
means for monitoring, by the mobile terminal, a link condition of the second communication link in response to storing the second handover condition, while monitoring, by the mobile terminal, a link condition of a third communication link between the mobile terminal and a third base station;
means for sending, by the mobile terminal, a base station replacement measurement report to the first base station if the link condition of the second communication link is below the second link quality threshold and the link condition of the third communication link is above the first link quality threshold;
means for determining, by the first base station, whether the third base station is capable of communicating with the mobile terminal in response to receiving the base station replacement measurement report;
and means for sending, by the first base station, a third handover preparation message to the mobile terminal in response to determining that the third base station is capable of communicating with the mobile terminal, wherein the third handover preparation message includes at least an identity identifier of the third base station, a second RRC connection reconfiguration message including parameters required for the mobile terminal to establish an RRC connection with the third base station, a third addition handover condition message including the third handover condition to the mobile terminal, a third removal handover condition message, and an indication to no longer perform a handover to the second base station.
In a preferred embodiment, the data acquisition system based on the internet of things comprises:
means for stopping, by the mobile terminal, monitoring of the link condition of the second communication link in response to receiving the third handover preparation message;
means for determining, by the mobile terminal, a third handover condition in response to receiving the third handover preparation message, wherein the third handover condition is one of: the link condition of the third communication link is greater than the second link condition threshold for performing a handover, an average of the link condition of the third communication link over a predetermined time is greater than the second average link condition threshold for performing a handover, or a combination thereof;
means for monitoring, by the mobile terminal, a link condition of the third communication link and determining, by the mobile terminal, whether the link condition of the third communication link satisfies the third handover condition in response to determining the third handover condition;
a unit for randomly accessing the third base station by the mobile terminal if it is judged that the link status of the third communication link satisfies the third handover condition;
means for transmitting, by the mobile terminal, a handover complete message to the third base station and for transmitting, by the mobile terminal, data to the third base station in response to random access to the third base station.
In a preferred embodiment, the data acquisition system based on the internet of things comprises:
means for sending, by the first base station, a fifth handover preparation message to the mobile terminal if the first base station determines that the third handover condition needs to be modified, after sending the third handover preparation message to the mobile terminal, wherein the fifth handover preparation message includes at least an identity identifier of the third base station and a handover condition modification message;
means for modifying, by the mobile terminal, the third handover condition in response to receiving the fifth handover preparation message;
means for monitoring, by the mobile terminal, a link condition of the third communication link and determining, by the mobile terminal, whether the link condition of the third communication link satisfies the modified third handover condition in response to modifying the third handover condition;
means for randomly accessing, by the mobile terminal, the third base station if it is determined that the link condition of the third communication link satisfies the modified third handover condition;
means for transmitting, by the mobile terminal, a handover complete message to the third base station and for transmitting, by the mobile terminal, data to the third base station in response to random access to the third base station.
Compared with the prior art, the invention has the advantages that the modern society is a data era, in the near future, enterprises can master the data quantity and the accuracy degree to greatly influence the enterprise profits and the product quality of the enterprises, and only enterprises which can accurately master the user requirements by means of big data technology can provide better services at lower cost. In order to master more data and ensure that the data is continuously updated, more data needs to be collected anytime and anywhere through the internet of things technology, but many internet of things devices often cannot receive a strong base station signal, and in this case, how to ensure that the internet of things devices can quickly transmit the data to the base station becomes a very important technical problem. Aiming at the problems in the prior art, the application provides a data acquisition method and system based on the Internet of things.
Drawings
Fig. 1 is a schematic diagram of a system architecture according to an embodiment of the present invention.
FIG. 2 is a flow diagram of a method according to an embodiment of the invention.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
Fig. 1 is a schematic diagram of a system architecture according to an embodiment of the present invention. As shown in the figure, the system of the present invention includes a mobile terminal, where the mobile terminal may be an internet of things terminal (e.g., a smart water meter, a smart electricity meter, a wireless transmission device inside a smart appliance, etc.), the mobile terminal may communicate with a first base station, a second base station, and a third base station, and data received by the first base station and the third base station may be sent to a server. Of course, it should be understood by those skilled in the art that there should be a plurality of mobile terminals in the system of the present application, and the plurality of mobile terminals can all communicate with the first to third base stations, and at the same time, the number of base stations can be more than three due to the development of the micro base station technology.
FIG. 2 is a flow diagram of a method according to an embodiment of the invention. As shown in the figure, the method of the present invention comprises the steps of:
step 101: collecting data by the mobile terminal;
step 102: monitoring, by a mobile terminal, system information transmitted by a first base station, wherein the system information includes an indication of a first link quality threshold and an indication of a second link quality threshold;
step 103: monitoring, by the mobile terminal, the synchronization signal transmitted by the second base station, and determining, by the mobile terminal, a link condition of a second communication link between the mobile terminal and the second base station based on the synchronization signal transmitted by the second base station; the link condition may be any metric known in the art, such as RSRP, RSRQ, signal-to-noise ratio, signal-to-interference-and-noise ratio, etc.;
step 104: in response to determining the link condition of the second communication link, determining, by the mobile terminal, whether the link condition of the second communication link is greater than a first link quality threshold;
step 105: if the link condition of the second communication link is judged to be larger than the first link quality threshold, the mobile terminal sends a base station addition measurement report to the first base station;
step 106: determining, by the first base station, whether the second base station is capable of communicating with the mobile terminal in response to receiving the base station addition measurement report;
step 107: in response to determining that the second base station is capable of communicating with the mobile terminal, sending, by the first base station, a first handover preparation message to the mobile terminal, wherein the first handover preparation message includes at least an identity identifier of the second base station, a first RRC connection reconfiguration message, an add handover condition message, and a remove handover condition message, wherein the first RRC connection reconfiguration message includes parameters required for the mobile terminal to establish an RRC connection with the second base station, and wherein the add handover condition message indicates the first handover condition to the mobile terminal;
step 108: storing, by the mobile terminal, a first handover condition in response to receiving the first handover preparation message;
step 109: after sending the first handover preparation message to the mobile terminal, if the first base station determines that the first handover condition needs to be replaced by a second handover condition, sending, by the first base station, a second handover preparation message to the mobile terminal, wherein the second handover preparation message at least includes an identity identifier of the second base station, a second add handover condition message and a second remove handover condition message, wherein the second add handover condition message indicates the second handover condition to the mobile terminal, and wherein the second remove handover condition message indicates to the mobile terminal to discard the first handover condition;
step 110: in response to receiving the second handover preparation message, deleting, by the mobile terminal, the first handover condition and storing the second handover condition.
In a preferred embodiment, the data acquisition method based on the internet of things comprises the following steps:
storing, by the mobile terminal, a second handover condition in response to receiving the first handover preparation message and the second handover preparation message, wherein the second handover condition is one of: the link condition of the second communication link is greater than the first link condition threshold for performing a handover, an average of the link condition of the second communication link over a predetermined time is greater than the first average link condition threshold for performing a handover, or a combination thereof; in one embodiment, the second handover condition may be that the link condition of the second communication link is greater than a link condition threshold for the first handover, and specifically, the second handover condition may be that the signal-to-noise ratio of the second communication link is greater than a predetermined signal-to-noise ratio threshold, and after the signal-to-noise ratio of the second communication link is greater than the predetermined signal-to-noise ratio threshold, the mobile terminal is handed over to the second base station, where the predetermined signal-to-noise ratio threshold is determined in a manner known to those skilled in the art, for example, if the signal-to-noise ratio threshold is higher, the transmission speed and delay performance is better, but the mobile terminal is difficult to access to the second base station. In another embodiment, the second handover condition may be that the link condition of the second communication link is greater than the first link condition threshold for performing a handover and the average of the link condition of the second communication link over the predetermined time is greater than the first link condition threshold for performing a handover, and so on.
In response to storing the second switching condition, monitoring, by the mobile terminal, a link condition of the second communication link and determining, by the mobile terminal, whether the link condition of the second communication link satisfies the second switching condition;
if the link condition of the second communication link is judged to meet the second switching condition, the mobile terminal is randomly accessed to the second base station;
in response to random access to the second base station, a handover complete message is sent by the mobile terminal to the second base station and data is sent by the mobile terminal to the second base station.
In a preferred embodiment, the data acquisition method based on the internet of things comprises the following steps:
storing, by the mobile terminal, a second handover condition in response to receiving the first handover preparation message and the second handover preparation message;
monitoring, by the mobile terminal, a link condition of the second communication link in response to storing the second handover condition, while monitoring, by the mobile terminal, a link condition of a third communication link between the mobile terminal and the third base station;
sending, by the mobile terminal, a base station replacement measurement report to the first base station if the link condition of the second communication link is below the second link quality threshold and the link condition of the third communication link is above the first link quality threshold;
determining, by the first base station, whether the third base station is capable of communicating with the mobile terminal in response to receiving the base station replacement measurement report;
and in response to determining that the third base station can communicate with the mobile terminal, sending, by the first base station, a third handover preparation message to the mobile terminal, wherein the third handover preparation message includes at least an identity identifier of the third base station, a second RRC connection reconfiguration message including parameters required for the mobile terminal to establish an RRC connection with the third base station, a third addition handover condition message including the third handover condition to the mobile terminal, a third removal handover condition message, and an indication that handover to the second base station is no longer performed.
In a preferred embodiment, the data acquisition method based on the internet of things comprises the following steps:
stopping, by the mobile terminal, monitoring a link condition of the second communication link in response to receiving the third handover preparation message;
determining, by the mobile terminal, a third handover condition in response to receiving the third handover preparation message, wherein the third handover condition is one of: the link condition of the third communication link is greater than the second link condition threshold for performing a handover, an average of the link condition of the third communication link over a predetermined time is greater than the second average link condition threshold for performing a handover, or a combination thereof;
in response to determining the third handover condition, monitoring, by the mobile terminal, a link condition of the third communication link and determining, by the mobile terminal, whether the link condition of the third communication link satisfies the third handover condition;
if the link condition of the third communication link is judged to meet the third switching condition, the mobile terminal is randomly accessed to the third base station;
and responding to the random access of the third base station, sending a switching completion message to the third base station by the mobile terminal and sending data to the third base station by the mobile terminal.
In a preferred embodiment, the data acquisition method based on the internet of things comprises the following steps:
after sending the third handover preparation message to the mobile terminal, if the first base station determines that the third handover condition needs to be modified, sending a fifth handover preparation message to the mobile terminal by the first base station, wherein the fifth handover preparation message at least comprises an identity identifier of the third base station and a handover condition modification message; it should be understood by those skilled in the art that the modification and the removal are two different operations, and the "removal" in the foregoing step refers to deleting the stored entire handover condition and then storing the entire handover condition in the mobile terminal according to the command of adding the handover condition, where the handover condition is complicated, such deletion and writing commands may cause an increase in power consumption of the mobile terminal. For example, in the case that only the threshold value in the handover command needs to be changed, the deletion and writing operations are not necessary, and only a certain field in the handover command needs to be modified, which is much less occupied by the storage bandwidth and has a great benefit for saving power of the mobile terminal.
Modifying, by the mobile terminal, the third handover condition in response to receiving the fifth handover preparation message;
in response to the modification of the third switching condition, the mobile terminal monitors the link condition of the third communication link and judges whether the link condition of the third communication link meets the modified third switching condition;
if the link condition of the third communication link is judged to meet the modified third switching condition, the mobile terminal is randomly accessed to the third base station;
and responding to the random access of the third base station, sending a switching completion message to the third base station by the mobile terminal and sending data to the third base station by the mobile terminal.
The invention provides a data acquisition system based on the Internet of things, which is characterized by comprising the following components:
means for collecting data by a mobile terminal;
means for listening, by a mobile terminal, for system information transmitted by a first base station, wherein the system information includes an indication of a first link quality threshold and an indication of a second link quality threshold;
means for listening, by the mobile terminal, for a synchronization signal transmitted by the second base station and determining, by the mobile terminal, a link condition of a second communication link between the mobile terminal and the second base station based on the synchronization signal transmitted by the second base station;
means for determining, by the mobile terminal, whether a link condition of the second communication link is greater than a first link quality threshold in response to determining the link condition of the second communication link;
means for sending, by the mobile terminal, a base station addition measurement report to the first base station if it is determined that the link condition of the second communication link is greater than the first link quality threshold;
means for determining, by the first base station, whether the second base station is capable of communicating with the mobile terminal in response to receiving the base station addition measurement report;
means for sending, by the first base station, a first handover preparation message to the mobile terminal in response to determining that the second base station is capable of communicating with the mobile terminal, wherein the first handover preparation message includes at least an identity identifier of the second base station, a first RRC connection reconfiguration message including parameters required for the mobile terminal to establish an RRC connection with the second base station, an add handover condition message, and a remove handover condition message, wherein the add handover condition message indicates the first handover condition to the mobile terminal;
means for storing, by the mobile terminal, a first handover condition in response to receiving the first handover preparation message;
means for sending, by the first base station, a second handover preparation message to the mobile terminal after sending the first handover preparation message to the mobile terminal if the first base station determines that the first handover condition needs to be replaced with a second handover condition, wherein the second handover preparation message includes at least an identity identifier of the second base station, a second add handover condition message and a second remove handover condition message, wherein the second add handover condition message indicates the second handover condition to the mobile terminal, wherein the second remove handover condition message indicates to the mobile terminal to discard the first handover condition;
means for deleting, by the mobile terminal, the first handover condition and storing the second handover condition in response to receiving the second handover preparation message.
In a preferred embodiment, the data acquisition system based on the internet of things comprises:
means for storing, by the mobile terminal, a second handover condition in response to receiving the first handover preparation message and the second handover preparation message, wherein the second handover condition is one of: the link condition of the second communication link is greater than the first link condition threshold for performing a handover, an average of the link condition of the second communication link over a predetermined time is greater than the first average link condition threshold for performing a handover, or a combination thereof;
means for monitoring, by the mobile terminal, a link condition of the second communication link and determining, by the mobile terminal, whether the link condition of the second communication link satisfies the second handover condition in response to storing the second handover condition;
means for randomly accessing, by the mobile terminal, the second base station if it is determined that the link condition of the second communication link satisfies the second handover condition;
means for transmitting, by the mobile terminal, a handover complete message to the second base station and transmitting, by the mobile terminal, data to the second base station in response to random access to the second base station.
In a preferred embodiment, the data acquisition system based on the internet of things comprises:
means for storing, by the mobile terminal, a second handover condition in response to receiving the first handover preparation message and the second handover preparation message;
means for monitoring, by the mobile terminal, a link condition of the second communication link in response to storing the second handover condition, while monitoring, by the mobile terminal, a link condition of a third communication link between the mobile terminal and a third base station;
means for sending, by the mobile terminal, a base station replacement measurement report to the first base station if the link condition of the second communication link is below the second link quality threshold and the link condition of the third communication link is above the first link quality threshold;
means for determining, by the first base station, whether the third base station is capable of communicating with the mobile terminal in response to receiving the base station replacement measurement report;
and means for sending, by the first base station, a third handover preparation message to the mobile terminal in response to determining that the third base station is capable of communicating with the mobile terminal, wherein the third handover preparation message includes at least an identity identifier of the third base station, a second RRC connection reconfiguration message including parameters required for the mobile terminal to establish an RRC connection with the third base station, a third addition handover condition message including the third handover condition to the mobile terminal, a third removal handover condition message, and an indication to no longer perform a handover to the second base station.
In a preferred embodiment, the data acquisition system based on the internet of things comprises:
means for stopping, by the mobile terminal, monitoring of the link condition of the second communication link in response to receiving the third handover preparation message;
means for determining, by the mobile terminal, a third handover condition in response to receiving the third handover preparation message, wherein the third handover condition is one of: the link condition of the third communication link is greater than the second link condition threshold for performing a handover, an average of the link condition of the third communication link over a predetermined time is greater than the second average link condition threshold for performing a handover, or a combination thereof;
means for monitoring, by the mobile terminal, a link condition of the third communication link and determining, by the mobile terminal, whether the link condition of the third communication link satisfies the third handover condition in response to determining the third handover condition;
a unit for randomly accessing the third base station by the mobile terminal if it is judged that the link status of the third communication link satisfies the third handover condition;
means for transmitting, by the mobile terminal, a handover complete message to the third base station and for transmitting, by the mobile terminal, data to the third base station in response to random access to the third base station.
In a preferred embodiment, the data acquisition system based on the internet of things comprises:
means for sending, by the first base station, a fifth handover preparation message to the mobile terminal if the first base station determines that the third handover condition needs to be modified, after sending the third handover preparation message to the mobile terminal, wherein the fifth handover preparation message includes at least an identity identifier of the third base station and a handover condition modification message;
means for modifying, by the mobile terminal, the third handover condition in response to receiving the fifth handover preparation message;
means for monitoring, by the mobile terminal, a link condition of the third communication link and determining, by the mobile terminal, whether the link condition of the third communication link satisfies the modified third handover condition in response to modifying the third handover condition;
means for randomly accessing, by the mobile terminal, the third base station if it is determined that the link condition of the third communication link satisfies the modified third handover condition;
means for transmitting, by the mobile terminal, a handover complete message to the third base station and for transmitting, by the mobile terminal, data to the third base station in response to random access to the third base station.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (2)
1. A data acquisition method based on the Internet of things is characterized by comprising the following steps:
collecting data by a mobile terminal, wherein the mobile terminal is an intelligent water meter;
monitoring, by a mobile terminal, system information transmitted by a first base station, wherein the system information includes an indication of a first link quality threshold and an indication of a second link quality threshold;
monitoring, by a mobile terminal, a synchronization signal transmitted by a second base station, and determining, by the mobile terminal, a link condition of a second communication link between the mobile terminal and the second base station based on the synchronization signal transmitted by the second base station;
in response to determining the link condition of the second communication link, determining, by the mobile terminal, whether the link condition of the second communication link is greater than the first link quality threshold;
if the link condition of the second communication link is judged to be larger than the first link quality threshold, a mobile terminal sends a base station addition measurement report to the first base station;
determining, by the first base station, whether the second base station is capable of communicating with the mobile terminal in response to receiving the base station addition measurement report;
in response to determining that the second base station is capable of communicating with the mobile terminal, sending, by the first base station, a first handover preparation message to the mobile terminal, wherein the first handover preparation message includes at least an identity identifier of the second base station, a first RRC connection reconfiguration message including parameters required for the mobile terminal to establish an RRC connection with the second base station, an add handover condition message, and a remove handover condition message, wherein the add handover condition message indicates a first handover condition to the mobile terminal;
storing, by a mobile terminal, the first handover condition in response to receiving the first handover preparation message;
after sending a first handover preparation message to the mobile terminal, if the first base station determines that the first handover condition needs to be replaced with a second handover condition, sending, by the first base station, a second handover preparation message to the mobile terminal, wherein the second handover preparation message includes at least an identity identifier of the second base station, a second add handover condition message and a second remove handover condition message, wherein the second add handover condition message indicates the second handover condition to the mobile terminal, and wherein the second remove handover condition message indicates to the mobile terminal to discard the first handover condition;
deleting, by the mobile terminal, the first handover condition and storing the second handover condition in response to receiving the second handover preparation message,
the data acquisition method based on the Internet of things comprises the following steps:
storing, by a mobile terminal, a second handover condition in response to receiving the first handover preparation message and the second handover preparation message, wherein the second handover condition is one of: the link condition of the second communication link is greater than a first link condition threshold for performing a handover, an average of the link condition of the second communication link over a predetermined time is greater than a first average link condition threshold for performing a handover, or a combination thereof;
in response to storing the second handover condition, monitoring, by the mobile terminal, a link condition of the second communication link and determining, by the mobile terminal, whether the link condition of the second communication link satisfies the second handover condition;
if the link condition of the second communication link is judged to meet the second switching condition, the mobile terminal is randomly accessed to the second base station;
sending, by the mobile terminal, a handover complete message to the second base station and sending, by the mobile terminal, the data to the second base station in response to random access to the second base station,
the data acquisition method based on the Internet of things comprises the following steps:
storing, by the mobile terminal, a second handover condition in response to receiving the first handover preparation message and the second handover preparation message;
monitoring, by the mobile terminal, a link condition of the second communication link in response to storing the second handover condition, while monitoring, by the mobile terminal, a link condition of a third communication link between the mobile terminal and a third base station;
sending, by a mobile terminal, a base station replacement measurement report to the first base station if the link condition of the second communication link is below the second link quality threshold and the link condition of the third communication link is above the first link quality threshold;
determining, by the first base station, whether the third base station is capable of communicating with the mobile terminal in response to receiving the base station replacement measurement report;
in response to determining that the third base station is capable of communicating with the mobile terminal, sending, by the first base station, a third handover preparation message to the mobile terminal, wherein the third handover preparation message includes at least an identity identifier of the third base station, a second RRC connection reconfiguration message including parameters required for the mobile terminal to establish an RRC connection with the third base station, a third addition handover condition message including a third handover condition to the mobile terminal, a third removal handover condition message including an indication that handover to the second base station is no longer performed,
the data acquisition method based on the Internet of things comprises the following steps:
stopping, by the mobile terminal, monitoring link conditions of the second communication link in response to receiving the third handover preparation message;
determining, by the mobile terminal, a third handover condition in response to receiving the third handover preparation message, wherein the third handover condition is one of: the link condition of the third communication link is greater than a second link condition threshold for performing a handover, an average of the link condition of the third communication link over a predetermined time is greater than a second average link condition threshold for performing a handover, or a combination thereof;
in response to determining the third handover condition, monitoring, by the mobile terminal, a link condition of the third communication link and determining, by the mobile terminal, whether the link condition of the third communication link satisfies the third handover condition;
if the link condition of the third communication link is judged to meet the third switching condition, the mobile terminal is randomly accessed to the third base station;
sending, by the mobile terminal, a handover complete message to the third base station and sending, by the mobile terminal, the data to the third base station in response to random access to the third base station,
the data acquisition method based on the Internet of things comprises the following steps:
after sending a third handover preparation message to the mobile terminal, if the first base station determines that the third handover condition needs to be modified, sending a fifth handover preparation message to the mobile terminal by the first base station, wherein the fifth handover preparation message at least comprises an identity identifier of the third base station and a handover condition modification message;
modifying, by the mobile terminal, the third handover condition in response to receiving the fifth handover preparation message;
in response to modifying the third handover condition, monitoring, by the mobile terminal, a link condition of the third communication link and determining, by the mobile terminal, whether the link condition of the third communication link satisfies the modified third handover condition;
if the link condition of the third communication link is judged to meet the modified third switching condition, the mobile terminal is randomly accessed to the third base station;
and responding to the random access of the third base station, sending a switching completion message to the third base station by the mobile terminal and sending the data to the third base station by the mobile terminal.
2. A data acquisition system based on the Internet of things is characterized by comprising:
a unit for collecting data by a mobile terminal, wherein the mobile terminal is an intelligent water meter;
means for listening, by a mobile terminal, for system information transmitted by a first base station, wherein the system information includes an indication of a first link quality threshold and an indication of a second link quality threshold;
means for listening, by a mobile terminal, for a synchronization signal transmitted by a second base station, and determining, by the mobile terminal, a link condition of a second communication link between the mobile terminal and the second base station based on the synchronization signal transmitted by the second base station;
means for determining, by a mobile terminal, whether a link condition of the second communication link is greater than the first link quality threshold in response to determining the link condition of the second communication link;
means for sending, by a mobile terminal, a base station addition measurement report to the first base station if it is determined that the link condition of the second communication link is greater than the first link quality threshold;
means for determining, by a first base station, whether the second base station is capable of communicating with the mobile terminal in response to receiving the base station addition measurement report;
means for transmitting, by a first base station, a first handover preparation message to the mobile terminal in response to determining that the second base station is capable of communicating with the mobile terminal, wherein the first handover preparation message includes at least an identity identifier of the second base station, a first RRC connection reconfiguration message including parameters required for the mobile terminal to establish an RRC connection with the second base station, an add handover condition message, and a remove handover condition message, wherein the add handover condition message indicates a first handover condition to the mobile terminal;
means for storing, by a mobile terminal, the first handover condition in response to receiving the first handover preparation message;
means for transmitting, by a first base station, a second handover preparation message to the mobile terminal after transmitting a first handover preparation message to the mobile terminal if the first base station determines that the first handover condition needs to be replaced with a second handover condition, wherein the second handover preparation message includes at least an identity identifier of the second base station, a second add handover condition message and a second remove handover condition message, wherein the second add handover condition message indicates to the mobile terminal the second handover condition, wherein the second remove handover condition message indicates to the mobile terminal to discard the first handover condition;
means for deleting, by the mobile terminal, the first handover condition and storing the second handover condition in response to receiving the second handover preparation message,
the data acquisition system based on the Internet of things comprises:
means for storing, by a mobile terminal, a second handover condition in response to receiving the first handover preparation message and the second handover preparation message, wherein the second handover condition is one of: the link condition of the second communication link is greater than a first link condition threshold for performing a handover, an average of the link condition of the second communication link over a predetermined time is greater than a first average link condition threshold for performing a handover, or a combination thereof;
means for monitoring, by the mobile terminal, a link condition of the second communication link and determining, by the mobile terminal, whether the link condition of the second communication link satisfies the second handover condition in response to storing the second handover condition;
means for randomly accessing, by a mobile terminal, the second base station if it is determined that the link condition of the second communication link satisfies the second handover condition;
means for transmitting a handover complete message by a mobile terminal to the second base station and the data by a mobile terminal to the second base station in response to random access to the second base station,
the data acquisition system based on the Internet of things comprises:
means for storing, by a mobile terminal, a second handover condition in response to receiving the first handover preparation message and the second handover preparation message;
means for monitoring, by the mobile terminal, a link condition of the second communication link while monitoring, by the mobile terminal, a link condition of a third communication link between the mobile terminal and a third base station, in response to storing the second handover condition;
means for sending, by a mobile terminal, a base station replacement measurement report to the first base station if the link condition of the second communication link is below the second link quality threshold and the link condition of the third communication link is above the first link quality threshold;
means for determining, by the first base station, whether the third base station is capable of communicating with the mobile terminal in response to receiving the base station replacement measurement report;
means for transmitting, by a first base station, a third handover preparation message to the mobile terminal in response to determining that the third base station is capable of communicating with the mobile terminal, wherein the third handover preparation message includes at least an identity identifier of the third base station, a second RRC connection reconfiguration message including parameters required for the mobile terminal to establish an RRC connection with the third base station, a third addition handover condition message including a third handover condition to the mobile terminal, a third removal handover condition message including an indication that handover to the second base station is no longer to be performed,
the data acquisition system based on the Internet of things comprises:
means for stopping, by the mobile terminal, monitoring of the link condition of the second communication link in response to receiving the third handover preparation message;
means for determining, by the mobile terminal, a third handover condition in response to receiving the third handover preparation message, wherein the third handover condition is one of: the link condition of the third communication link is greater than a second link condition threshold for performing a handover, an average of the link condition of the third communication link over a predetermined time is greater than a second average link condition threshold for performing a handover, or a combination thereof;
means for monitoring, by the mobile terminal, a link condition of the third communication link and determining, by the mobile terminal, whether the link condition of the third communication link satisfies the third handover condition in response to determining the third handover condition;
means for randomly accessing, by a mobile terminal, the third base station if it is determined that the link status of the third communication link satisfies the third handover condition;
means for transmitting a handover complete message by the mobile terminal to the third base station and transmitting the data by the mobile terminal to the third base station in response to random access to the third base station,
the data acquisition system based on the Internet of things comprises:
means for sending, by the first base station, a fifth handover preparation message to the mobile terminal after sending the third handover preparation message to the mobile terminal if the first base station determines that the third handover condition needs to be modified, wherein the fifth handover preparation message includes at least an identity identifier of the third base station and a handover condition modification message;
means for modifying, by the mobile terminal, the third handover condition in response to receiving the fifth handover preparation message;
means for monitoring, by the mobile terminal, a link condition of the third communication link and determining, by the mobile terminal, whether the link condition of the third communication link satisfies the modified third handover condition in response to modifying the third handover condition;
means for randomly accessing, by a mobile terminal, the third base station if it is determined that the link condition of the third communication link satisfies the modified third handover condition;
means for sending, by the mobile terminal, a handover complete message to the third base station and sending, by the mobile terminal, the data to the third base station in response to random access to the third base station.
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