CN113259876B - Remote adjustment method for resolution of advertising board of Internet of things - Google Patents
Remote adjustment method for resolution of advertising board of Internet of things Download PDFInfo
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- CN113259876B CN113259876B CN202110688633.6A CN202110688633A CN113259876B CN 113259876 B CN113259876 B CN 113259876B CN 202110688633 A CN202110688633 A CN 202110688633A CN 113259876 B CN113259876 B CN 113259876B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/20—Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
- H04W4/23—Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel for mobile advertising
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
Abstract
The invention provides a remote adjustment method for the resolution of an internet of things billboard, which comprises the following steps: establishing a communication connection with a first base station by a mobile terminal; monitoring, by the mobile terminal, a synchronization signal transmitted by the first base station; determining, by the mobile terminal, a first signal quality of the synchronization signal transmitted by the first base station in response to monitoring the synchronization signal transmitted by the first base station; determining, by the mobile terminal, whether the first signal quality is above a signal quality threshold in response to determining the first signal quality; sending, by the mobile terminal, a measurement report to the first base station if the first signal quality is determined to be below the signal quality threshold; responding to the received measurement report, and sending a system information request message and a synchronous signal resource request message to the second base station by the first base station; and responding to the received system information request message and the synchronization signal resource request message, and judging whether the second base station allows the mobile terminal to access the second base station or not by the second base station.
Description
Technical Field
The invention relates to the technical field of Internet of things, in particular to a remote adjustment method for the resolution of an Internet of things billboard.
Background
The advertising board connected with the Internet is widely applied, the display content can be switched in real time, and the profit rate of advertising service providers is improved.
Prior art CN109462574A discloses a billboard control gateway based on a blockchain, comprising a memory for storing a program and a processor for loading a program to perform a first and/or a second data processing step, the first data processing step comprising: the acquired billboard information and the node identification information of the billboard constitute block chain data, and then the block chain data are broadcasted to a plurality of first nodes, so that the first node with the minimum backup node number is confirmed, and a first instruction is sent to the confirmed first nodes to perform backup processing on the block chain data; the second processing step includes: and calculating the performance value of the block chain data after receiving the block chain data, returning first feedback information to the second node when the performance value is greater than a judgment threshold, and performing backup processing on the block chain data after receiving the first instruction.
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 remote adjustment method for the resolution of an internet of things billboard, which can overcome the defects of the prior art.
In order to achieve the purpose, the invention provides a remote adjustment method for the resolution of an internet of things billboard, which comprises the following steps:
establishing a communication connection with a first base station by a mobile terminal;
monitoring, by the mobile terminal, a synchronization signal transmitted by the first base station;
determining, by the mobile terminal, a first signal quality of the synchronization signal transmitted by the first base station in response to monitoring the synchronization signal transmitted by the first base station;
determining, by the mobile terminal, whether the first signal quality is above a signal quality threshold in response to determining the first signal quality, wherein the signal quality threshold is indicated in system information transmitted by the first base station;
sending, by the mobile terminal, a measurement report to the first base station if the first signal quality is determined to be below the signal quality threshold;
responding to the received measurement report, and sending a system information request message and a synchronous signal resource request message to the second base station by the first base station;
responding to the received system information request message and the synchronous signal resource request message, and judging whether the second base station allows the mobile terminal to access the second base station or not by the second base station;
if the second base station allows the mobile terminal to access the second base station, the second base station sends information for randomly accessing the second base station, system information of the second base station and resource information for sending a synchronous signal by the second base station to the first base station;
responding to the received system information of the second base station, and sending a first PDCCH message to the mobile terminal by the first base station, wherein the first PDCCH message comprises a system information configuration field;
and responding to the first PDCCH message sent to the mobile terminal, and sending the system information of the second base station to the mobile terminal by the first base station on the PBCH channel of the first base station.
In a preferred embodiment, the method for remotely adjusting the resolution of the advertising board of the internet of things comprises the following steps:
in response to receiving the first PDCCH message, determining, by the mobile terminal, a content of a first field in the first PDCCH message, wherein the first field includes a first bit, a second bit, and a third bit;
if the first bit is determined to be the first value, determining, by the mobile terminal, that the first OFDM symbol used by the first base station for transmitting the PBCH channel is not used for transmitting the system information of the second base station;
if the first bit is determined to be the second value, determining, by the mobile terminal, that a first OFDM symbol used by the first base station for transmitting the PBCH channel is used for transmitting system information of the second base station;
if the second bit is determined to be the first value, determining, by the mobile terminal, that the second OFDM symbol used by the first base station for transmitting the PBCH channel is not used for transmitting system information of the second base station;
if the second bit is determined to be the second value, determining, by the mobile terminal, that a second OFDM symbol used by the first base station for transmitting the PBCH channel is used for transmitting system information of the second base station;
if the third bit is determined to be the first value, determining, by the mobile terminal, that the third OFDM symbol used by the first base station for transmitting the PBCH channel is not used for transmitting the system information of the second base station;
if the third bit is determined to be the second value, determining, by the mobile terminal, that a third OFDM symbol used by the first base station for transmitting the PBCH channel is used for transmitting system information of the second base station;
if the first bit is determined to be the first value, the mobile terminal does not decode a second field corresponding to the first bit;
if the first bit is determined to be the second value, decoding a second field corresponding to the first bit by the mobile terminal, wherein the second field comprises a first number A1 of bits;
in response to decoding the second field corresponding to the first bit, determining by the mobile terminal a total number of subcarriers T1 used by the first base station for transmitting the first OFDM symbol of the PBCH channel;
in response to determining the total number of subcarriers T1 on the first OFDM symbol used by the first base station to transmit the PBCH channel, dividing, by the mobile terminal, the total number of subcarriers T1 by the first number a1 to obtain a second number B1 of subcarrier groups;
wherein the first value is 0 and the second value is 1.
In a preferred embodiment, the method for remotely adjusting the resolution of the advertising board of the internet of things comprises the following steps:
determining, by the mobile terminal, that a first one of the second number B1 of subcarrier groups is not used for transmitting system information of the second base station if a first bit of the first number a1 of bits is a first value;
determining, by the mobile terminal, a first one of a second number B1 of subcarrier groups to use for transmitting system information of the second base station if a first bit of the first number a1 of bits is a second value;
determining, by the mobile terminal, that a second one of the second number B1 of subcarrier groups is not used for transmitting system information of the second base station if a second one of the first number a1 of bits is the first value;
determining, by the mobile terminal, a second subcarrier group of the second number B1 for transmitting system information of the second base station if a second bit of the first number a1 of bits is a second value;
if the second bit is determined to be the first value, the mobile terminal does not decode a third field corresponding to the second bit;
if the second bit is determined to be the second value, decoding, by the mobile terminal, a third field corresponding to the second bit, wherein the third field includes a third number of bits A2;
determining, by the mobile terminal, a total number of subcarriers T2 used by the first base station for transmitting the second OFDM symbol of the PBCH channel in response to decoding the third field corresponding to the second bit;
in response to determining the total number of subcarriers T2 on the second OFDM symbol used by the first base station to transmit the PBCH channel, dividing the total number of subcarriers T2 used by the mobile terminal by the third number a2 to obtain a fourth number B2 of subcarrier groups;
determining, by the mobile terminal, that a first one of the fourth number B2 of subcarrier groups is not used for transmitting system information of the second base station if a first bit of the third number a2 of bits is a first value;
determining, by the mobile terminal, that a first subcarrier group of a fourth number B2 is used for transmitting system information of the second base station if a first bit of the third number a2 of bits is a second value;
determining, by the mobile terminal, that a second one of the fourth number B2 of subcarrier groups is not used for transmitting system information of the second base station if a second one of the third number a2 of bits is the first value;
determining, by the mobile terminal, a second subcarrier group of the fourth number B2 to use for transmitting system information of the second base station if a second bit of the third number a2 of bits is a second value;
wherein the first value is 0 and the second value is 1.
In a preferred embodiment, the method for remotely adjusting the resolution of the advertising board of the internet of things comprises the following steps:
if the third bit is determined to be the first value, the mobile terminal does not decode a fourth field corresponding to the third bit;
if the third bit is determined to be the second value, decoding a fourth field corresponding to the third bit by the mobile terminal, wherein the fourth field comprises a fifth number of bits A3;
in response to decoding the fourth field corresponding to the third bit, determining by the mobile terminal a total number of subcarriers T3 on a third OFDM symbol used by the first base station for transmitting the PBCH channel;
in response to determining the total number of subcarriers T3 on the third OFDM symbol used by the first base station to transmit the PBCH channel, dividing the total number of subcarriers T3 used by the mobile terminal by the fifth number A3 to obtain a sixth number B3 of subcarrier groups;
determining, by the mobile terminal, that a first subcarrier group of the sixth number B3 is not used for transmitting system information of the second base station if a first bit of the fifth number a3 of bits is a first numerical value;
determining, by the mobile terminal, that a first subcarrier group of a sixth number B3 is used for transmitting system information of the second base station if a first bit of the fifth number a3 of bits is a second numerical value;
determining, by the mobile terminal, that a second subcarrier group of the sixth number B3 is not used for transmitting system information of the second base station if a second bit of the fifth number a3 of bits is the first value;
determining, by the mobile terminal, a second subcarrier group of the sixth number B3 to use for transmitting system information of the second base station if a second bit of the fifth number a3 of bits is a second value;
wherein the first value is 0 and the second value is 1.
In a preferred embodiment, the method for remotely adjusting the resolution of the advertising board of the internet of things comprises the following steps:
in response to determining the symbols and subcarrier groups for transmitting system information of the second base station, monitoring, by the mobile terminal, the PBCH channel transmitted by the first base station to obtain system information of the second base station;
sending, by the first base station to the mobile terminal, an RRC connection reconfiguration message in response to receiving the information for random access to the second base station, wherein the RRC connection reconfiguration message indicates the information for random access to the second base station to the mobile terminal;
responding to the received resource information for the second base station to send the synchronous signal, and sending a second PDCCH message to the mobile terminal by the first base station, wherein the second PDCCH message indicates the resource information for the second base station to send the synchronous signal to the mobile terminal;
responding to the received second PDCCH message, and starting to listen to a synchronous signal sent by the second base station by the mobile terminal;
determining, by the mobile terminal, a second signal quality of the synchronization signal transmitted by the second base station in response to monitoring the synchronization signal transmitted by the second base station;
determining, by the mobile terminal, whether the second signal quality is above a second signal quality threshold in response to determining the second signal quality, wherein the second signal quality threshold is indicated in the system information of the second base station;
if the second signal quality is determined to be greater than the second signal quality threshold, the mobile terminal randomly accesses the second base station;
and responding to the random access of the second base station, and receiving the adjustment message of the resolution of the advertising board of the internet of things from the second base station by the mobile terminal.
The present invention has the advantage over the prior art that the resolution of current billboard displays is generally not remotely adjustable, which results in wasted bandwidth. For example, when no one is within a certain distance from the billboard, the high resolution advertising information display is completely unnecessary, and the low resolution advertising information display can save energy and reduce bandwidth requirements. In order to switch the resolution ratio of the advertising board in real time, the application provides a remote adjustment method and a remote adjustment system for the resolution ratio of the advertising board of 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.
Example 1
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. As shown in the figure, the remote adjustment method for the resolution of the internet of things billboard comprises the following steps:
step 101: establishing a communication connection with a first base station by a mobile terminal;
step 102: monitoring, by the mobile terminal, a synchronization signal transmitted by the first base station;
step 103: determining, by the mobile terminal, a first signal quality of the synchronization signal transmitted by the first base station in response to monitoring the synchronization signal transmitted by the first base station;
step 104: determining, by the mobile terminal, whether the first signal quality is above a signal quality threshold in response to determining the first signal quality, wherein the signal quality threshold is indicated in system information transmitted by the first base station;
step 105: sending, by the mobile terminal, a measurement report to the first base station if the first signal quality is determined to be below the signal quality threshold;
step 106: responding to the received measurement report, and sending a system information request message and a synchronous signal resource request message to the second base station by the first base station;
step 107: responding to the received system information request message and the synchronous signal resource request message, and judging whether the second base station allows the mobile terminal to access the second base station or not by the second base station;
step 108: if the second base station allows the mobile terminal to access the second base station, the second base station sends information for randomly accessing the second base station, system information of the second base station and resource information for sending a synchronous signal by the second base station to the first base station;
step 109: responding to the received system information of the second base station, and sending a first PDCCH message to the mobile terminal by the first base station, wherein the first PDCCH message comprises a system information configuration field;
step 110: and responding to the first PDCCH message sent to the mobile terminal, and sending the system information of the second base station to the mobile terminal by the first base station on the PBCH channel of the first base station.
Further, the remote adjustment method for the resolution of the advertising board of the Internet of things comprises the following steps: in response to receiving the first PDCCH message, determining, by the mobile terminal, a content of a first field in the first PDCCH message, wherein the first field includes a first bit, a second bit, and a third bit; if the first bit is determined to be the first value, determining, by the mobile terminal, that the first OFDM symbol used by the first base station for transmitting the PBCH channel is not used for transmitting the system information of the second base station; if the first bit is determined to be the second value, determining, by the mobile terminal, that a first OFDM symbol used by the first base station for transmitting the PBCH channel is used for transmitting system information of the second base station; if the second bit is determined to be the first value, determining, by the mobile terminal, that the second OFDM symbol used by the first base station for transmitting the PBCH channel is not used for transmitting system information of the second base station; if the second bit is determined to be the second value, determining, by the mobile terminal, that a second OFDM symbol used by the first base station for transmitting the PBCH channel is used for transmitting system information of the second base station; if the third bit is determined to be the first value, determining, by the mobile terminal, that the third OFDM symbol used by the first base station for transmitting the PBCH channel is not used for transmitting the system information of the second base station; if the third bit is determined to be the second value, determining, by the mobile terminal, that a third OFDM symbol used by the first base station for transmitting the PBCH channel is used for transmitting system information of the second base station; if the first bit is determined to be the first value, the mobile terminal does not decode a second field corresponding to the first bit; if the first bit is determined to be the second value, decoding a second field corresponding to the first bit by the mobile terminal, wherein the second field comprises a first number A1 of bits; in response to decoding the second field corresponding to the first bit, determining by the mobile terminal a total number of subcarriers T1 used by the first base station for transmitting the first OFDM symbol of the PBCH channel; in response to determining the total number of subcarriers T1 on the first OFDM symbol used by the first base station to transmit the PBCH channel, dividing, by the mobile terminal, the total number of subcarriers T1 by the first number a1 to obtain a second number B1 of subcarrier groups; wherein the first value is 0 and the second value is 1.
Further, the remote adjustment method for the resolution of the advertising board of the Internet of things comprises the following steps: determining, by the mobile terminal, that a first one of the second number B1 of subcarrier groups is not used for transmitting system information of the second base station if a first bit of the first number a1 of bits is a first value; determining, by the mobile terminal, a first one of a second number B1 of subcarrier groups to use for transmitting system information of the second base station if a first bit of the first number a1 of bits is a second value; determining, by the mobile terminal, that a second one of the second number B1 of subcarrier groups is not used for transmitting system information of the second base station if a second one of the first number a1 of bits is the first value; determining, by the mobile terminal, a second subcarrier group of the second number B1 for transmitting system information of the second base station if a second bit of the first number a1 of bits is a second value; if the second bit is determined to be the first value, the mobile terminal does not decode a third field corresponding to the second bit; if the second bit is determined to be the second value, decoding, by the mobile terminal, a third field corresponding to the second bit, wherein the third field includes a third number of bits A2; determining, by the mobile terminal, a total number of subcarriers T2 used by the first base station for transmitting the second OFDM symbol of the PBCH channel in response to decoding the third field corresponding to the second bit; in response to determining the total number of subcarriers T2 on the second OFDM symbol used by the first base station to transmit the PBCH channel, dividing the total number of subcarriers T2 used by the mobile terminal by the third number a2 to obtain a fourth number B2 of subcarrier groups; determining, by the mobile terminal, that a first one of the fourth number B2 of subcarrier groups is not used for transmitting system information of the second base station if a first bit of the third number a2 of bits is a first value; determining, by the mobile terminal, that a first subcarrier group of a fourth number B2 is used for transmitting system information of the second base station if a first bit of the third number a2 of bits is a second value; determining, by the mobile terminal, that a second one of the fourth number B2 of subcarrier groups is not used for transmitting system information of the second base station if a second one of the third number a2 of bits is the first value; determining, by the mobile terminal, a second subcarrier group of the fourth number B2 to use for transmitting system information of the second base station if a second bit of the third number a2 of bits is a second value; wherein the first value is 0 and the second value is 1
Further, the remote adjustment method for the resolution of the advertising board of the Internet of things comprises the following steps: if the third bit is determined to be the first value, the mobile terminal does not decode a fourth field corresponding to the third bit; if the third bit is determined to be the second value, decoding a fourth field corresponding to the third bit by the mobile terminal, wherein the fourth field comprises a fifth number of bits A3; in response to decoding the fourth field corresponding to the third bit, determining by the mobile terminal a total number of subcarriers T3 on a third OFDM symbol used by the first base station for transmitting the PBCH channel; in response to determining the total number of subcarriers T3 on the third OFDM symbol used by the first base station to transmit the PBCH channel, dividing the total number of subcarriers T3 used by the mobile terminal by the fifth number A3 to obtain a sixth number B3 of subcarrier groups; determining, by the mobile terminal, that a first subcarrier group of the sixth number B3 is not used for transmitting system information of the second base station if a first bit of the fifth number a3 of bits is a first numerical value; determining, by the mobile terminal, that a first subcarrier group of a sixth number B3 is used for transmitting system information of the second base station if a first bit of the fifth number a3 of bits is a second numerical value; determining, by the mobile terminal, that a second subcarrier group of the sixth number B3 is not used for transmitting system information of the second base station if a second bit of the fifth number a3 of bits is the first value; determining, by the mobile terminal, a second subcarrier group of the sixth number B3 to use for transmitting system information of the second base station if a second bit of the fifth number a3 of bits is a second value; wherein the first value is 0 and the second value is 1.
Example 2
In a preferred embodiment, the method for remotely adjusting the resolution of the advertising board of the internet of things comprises the following steps: in response to determining the symbols and subcarrier groups for transmitting system information of the second base station, monitoring, by the mobile terminal, the PBCH channel transmitted by the first base station to obtain system information of the second base station; sending, by the first base station to the mobile terminal, an RRC connection reconfiguration message in response to receiving the information for random access to the second base station, wherein the RRC connection reconfiguration message indicates the information for random access to the second base station to the mobile terminal; responding to the received resource information for the second base station to send the synchronous signal, and sending a second PDCCH message to the mobile terminal by the first base station, wherein the second PDCCH message indicates the resource information for the second base station to send the synchronous signal to the mobile terminal; responding to the received second PDCCH message, and starting to listen to a synchronous signal sent by the second base station by the mobile terminal; determining, by the mobile terminal, a second signal quality of the synchronization signal transmitted by the second base station in response to monitoring the synchronization signal transmitted by the second base station; determining, by the mobile terminal, whether the second signal quality is above a second signal quality threshold in response to determining the second signal quality, wherein the second signal quality threshold is indicated in the system information of the second base station; if the second signal quality is determined to be greater than the second signal quality threshold, the mobile terminal randomly accesses the second base station; and responding to the random access of the second base station, and receiving the adjustment message of the resolution of the advertising board of the internet of things from the second base station by the mobile terminal.
Example 3
The invention provides a remote adjustment system for the resolution of an internet of things billboard, which comprises: means for establishing, by a mobile terminal, a communication connection with a first base station; means for monitoring, by the mobile terminal, a synchronization signal transmitted by the first base station in response to establishing a communication connection with the first base station; means for determining, by the mobile terminal, a first signal quality of the synchronization signal transmitted by the first base station in response to listening to the synchronization signal transmitted by the first base station; means for determining, by the mobile terminal, whether the first signal quality is above a signal quality threshold in response to determining the first signal quality, wherein the signal quality threshold is indicated in system information transmitted by the first base station; means for transmitting, by the mobile terminal, a measurement report to the first base station if the first signal quality is determined to be below the signal quality threshold; means for transmitting, by the first base station, a system information request message and a synchronization signal resource request message to the second base station in response to receiving the measurement report; a unit for responding to the received system information request message and the synchronization signal resource request message, and judging whether the second base station allows the mobile terminal to access the second base station by the second base station; a unit for transmitting, by the second base station, information for randomly accessing the second base station, system information of the second base station, and resource information for the second base station to transmit a synchronization signal to the first base station if it is determined that the second base station allows the mobile terminal to access the second base station; a unit configured to send, by a first base station to a mobile terminal, a first PDCCH message in response to receiving system information of a second base station, where the first PDCCH message includes a system information configuration field; means for transmitting, by the first base station to the mobile terminal, system information of the second base station on a PBCH channel of the first base station in response to transmitting the first PDCCH message to the mobile terminal.
Further, the remote adjustment system of the resolution ratio of the advertising board of the internet of things comprises: means for determining, by the mobile terminal, content of a first field in the first PDCCH message in response to receiving the first PDCCH message, wherein the first field comprises a first bit, a second bit, and a third bit; means for determining, by the mobile terminal, that a first OFDM symbol used by the first base station for transmitting the PBCH channel is not used for transmitting system information of the second base station if the first bit is determined to be the first value; means for determining, by the mobile terminal, that a first OFDM symbol used by the first base station for transmitting the PBCH channel is used for transmitting system information of the second base station if the first bit is determined to be the second value; means for determining, by the mobile terminal, that a second OFDM symbol used by the first base station for transmitting the PBCH channel is not used for transmitting system information of the second base station if the second bit is determined to be the first value; means for determining, by the mobile terminal, that a second OFDM symbol used by the first base station for transmitting the PBCH channel is used for transmitting system information of a second base station if the second bit is determined to be a second value; means for determining, by the mobile terminal, that a third OFDM symbol used by the first base station for transmitting the PBCH channel is not used for transmitting system information of the second base station if the third bit is determined to be the first value; means for determining, by the mobile terminal, that a third OFDM symbol used by the first base station for transmitting the PBCH channel is used for transmitting system information of the second base station if the third bit is determined to be the second value; means for not decoding, by the mobile terminal, a second field corresponding to the first bit if the first bit is determined to be the first value; means for decoding, by the mobile terminal, a second field corresponding to the first bit if the first bit is determined to be a second value, wherein the second field includes a first number a1 of bits; means for determining, by the mobile terminal, a total number of subcarriers T1 used by the first base station to transmit a first OFDM symbol of the PBCH channel in response to decoding a second field corresponding to the first bit; means for dividing, by the mobile terminal, the total number of subcarriers T1 by the first number A1 in response to determining the total number of subcarriers T1 on the first OFDM symbol used by the first base station to transmit the PBCH channel to obtain a second number B1 of groups of subcarriers; wherein the first value is 0 and the second value is 1.
Further, the remote adjustment system of the resolution ratio of the advertising board of the internet of things comprises: means for determining, by the mobile terminal, that a first one of the second number of B1 subcarrier groups is not used for transmitting system information of the second base station if a first bit of the first number of a1 bits is a first value; means for determining, by the mobile terminal, that a first one of a second number B1 of subcarrier groups is used for transmitting system information of a second base station if a first bit of the first number a1 of bits is a second numerical value; means for determining, by the mobile terminal, that a second one of the second number B1 of subcarrier groups is not used for transmitting system information of a second base station if a second one of the first number a1 of bits is the first value; means for determining, by the mobile terminal, that a second subcarrier group of the second number B1 is used for transmitting system information of a second base station if a second bit of the first number a1 of bits is a second value; means for not decoding, by the mobile terminal, a third field corresponding to the second bit if the second bit is determined to be the first value; means for decoding, by the mobile terminal, a third field corresponding to the second bit if the second bit is determined to be the second value, wherein the third field includes a third number a2 of bits; means for determining, by the mobile terminal, a total number of subcarriers T2 used by the first base station to transmit on a second OFDM symbol of the PBCH channel in response to decoding a third field corresponding to the second bit; means for dividing, by the mobile terminal, the total number of subcarriers T2 by the third number A2 in response to determining the total number of subcarriers T2 on the second OFDM symbol used by the first base station to transmit the PBCH channel to obtain a fourth number B2 of subcarrier groups; means for determining, by the mobile terminal, that a first one of the fourth number of B2 subcarrier groups is not used for transmitting system information of the second base station if a first bit of the third number of a2 bits is a first value; means for determining, by the mobile terminal, that a first subcarrier group of a fourth number B2 of subcarrier groups is used for transmitting system information of the second base station if a first bit of the third number a2 of bits is a second value; means for determining, by the mobile terminal, that a second one of the fourth number of B2 subcarrier groups is not used for transmitting system information of the second base station if a second one of the third number of a2 bits is the first value; means for determining, by the mobile terminal, that a second subcarrier group of the fourth number B2 of subcarrier groups is used for transmitting system information of the second base station if a second bit of the third number a2 is a second value; wherein the first value is 0 and the second value is 1.
Further, the remote adjustment system of the resolution ratio of the advertising board of the internet of things comprises: means for not decoding, by the mobile terminal, a fourth field corresponding to the third bit if the third bit is determined to be the first value; means for decoding, by the mobile terminal, a fourth field corresponding to the third bit if the third bit is determined to be the second value, wherein the fourth field includes a fifth number of bits a 3; means for determining, by the mobile terminal, a total number of subcarriers T3 used by the first base station to transmit on a third OFDM symbol of the PBCH channel in response to decoding a fourth field corresponding to the third bit; means for dividing, by the mobile terminal, the total number of subcarriers T3 by the fifth number A3 in response to determining the total number of subcarriers T3 on the third OFDM symbol used by the first base station to transmit the PBCH channel to obtain a sixth number B3 of subcarrier groups; means for determining, by the mobile terminal, that a first one of a sixth number B3 of groups of subcarriers is not used for transmitting system information of the second base station if a first bit of the fifth number a3 of bits is a first numerical value; means for determining, by the mobile terminal, that a first subcarrier group of a sixth number B3 of subcarrier groups is used for transmitting system information of the second base station if a first bit of the fifth number a3 of bits is a second numerical value; means for determining, by the mobile terminal, that a second one of the sixth number of B3 subcarrier groups is not used for transmitting system information of the second base station if a second one of the fifth number of a3 bits is the first value; means for determining, by the mobile terminal, that a second subcarrier group of the sixth number B3 of subcarrier groups is used for transmitting system information of the second base station if a second bit of the fifth number a3 is a second value; wherein the first value is 0 and the second value is 1.
Example 4
In one embodiment, taking the PBCH channel, the primary synchronization signal, and the secondary synchronization signal defined in table 7.4.3.1-1 in the current TS 38.211 protocol as an example, currently the first OFDM symbol (index 0) in the SS/PBCH block is used for PSS transmission, the second OFDM symbol (index 1) in the SS/PBCH block is used for PBCH channel transmission, the third OFDM symbol (index 2) in the SS/PBCH block is used for PBCH and SSs transmission, and the fourth OFDM symbol (index 3) in the SS/PBCH block is used for PBCH transmission. In the frequency domain, table 7.4.3.1-1 defines the available subcarriers of the PBCH channel on each symbol (e.g., on symbol 1, PBCH may use a total of 240 subcarriers with indices 0-239). In one embodiment, the first bit of the first field of the present application is used to indicate whether the aforementioned second OFDM symbol (with index of 1) is used for PBCH transmission of the first base station or system information transmission of the second base station (i.e., whether the system information of the second base station is piggybacked by PBCH of the first base station); the second bit of the first field of the present application is used to indicate whether the aforementioned third OFDM symbol (index 2) is used for PBCH transmission of the first base station, or for system information transmission of the second base station (i.e., whether the system information of the second base station is piggybacked by PBCH of the first base station), and so on. In case of system information transmission of the second base station for which the second OFDM symbol (index 1) is used, it should also be determined which subcarriers are used for system information transmission of the second base station, taking the determination of the second field as an example, assuming that the second field has 4 bits, respectively "0001", the terminal divides 240 subcarriers by 4 to obtain 4 subcarrier groups, each subcarrier group having 60 subcarriers, wherein the first subcarrier group is a subcarrier group consisting of subcarriers of indexes 0 to 59, and so on. The first bit is 0, then the first subcarrier set (the subcarrier set of indices 0-59) is deemed not to be used for transmission of system information by the second base station. Of course, the second field may also have 2 bits, respectively "11", and the terminal divides 240 subcarriers by 2 to obtain 2 subcarrier groups, each subcarrier group having 120 subcarriers, where the first subcarrier group is a subcarrier group consisting of subcarriers with indexes 0 to 119, and the first bit is 1, and then the first subcarrier group (the subcarrier group with indexes 0 to 119) is considered to be used for transmission of system information of the second base station.
Example 5
In a preferred embodiment, the system for remotely adjusting the resolution of the billboard of the internet of things further comprises: means for monitoring, by the mobile terminal, a PBCH channel transmitted by the first base station to obtain system information of the second base station in response to determining the set of subcarriers and symbols used to transmit the system information of the second base station; means for sending, by the first base station to the mobile terminal, an RRC connection reconfiguration message in response to receiving information for random access to the second base station, wherein the RRC connection reconfiguration message indicates to the mobile terminal the information for random access to the second base station; a unit configured to send, by the first base station to the mobile terminal, a second PDCCH message in response to receiving resource information for the second base station to send a synchronization signal, wherein the second PDCCH message indicates, to the mobile terminal, the resource information for the second base station to send the synchronization signal; means for starting, by the mobile terminal, listening to a synchronization signal sent by the second base station in response to receiving the second PDCCH message; means for determining, by the mobile terminal, a second signal quality of the synchronization signal transmitted by the second base station in response to listening to the synchronization signal transmitted by the second base station; means for determining, by the mobile terminal, whether the second signal quality is above a second signal quality threshold in response to determining the second signal quality, wherein the second signal quality threshold is indicated in the system information of the second base station; means for randomly accessing, by the mobile terminal, the second base station if the second signal quality is determined to be greater than the second signal quality threshold; and means for receiving, by the mobile terminal from the second base station, an adjustment message for the resolution of the internet of things billboard in response to random access to the second base station.
Example 6
For the application scene of the advertising board of the internet of things, because the advertising board of the internet of things is basically placed at fixed positions of a shopping mall, an airport, a railway station and a bus stop, the first base station can determine which second base station has high communication quality with a certain advertising board of the internet of things based on the position of the advertising board (the position of the advertising board of the internet of things can be informed to the first base station or a position management entity at a network side by sending positioning information through a mobile terminal built in the advertising board, for example). In one embodiment, a certain internet of things billboard may be located in the southeast area of a shopping mall, the channel quality between the fading internet of things billboard and a first base station (the first base station is also located in the southeast area) is deteriorated due to some reasons, at this time, the first base station may select a second base station which is also located in the southeast area of the shopping mall, and it can be reasonably expected that the communication quality between the second base station and the internet of things billboard is high with a high probability. The switching method in the prior art needs the terminal to autonomously search and decode the system information and the synchronization signal transmitted by the target base station, while in the 5G deployment, the number of the target base stations may be many in one fixed area, which would result in excessive power consumption for the terminal to monitor the synchronization signal and the system information and waste of terminal processing resources if the switching method in the prior art is still used.
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 (1)
1. A remote adjustment method for the resolution of an Internet of things billboard is characterized by comprising the following steps:
establishing a communication connection with a first base station by a mobile terminal;
monitoring, by the mobile terminal, a synchronization signal transmitted by the first base station;
determining, by the mobile terminal, a first signal quality of the synchronization signal transmitted by the first base station in response to monitoring the synchronization signal transmitted by the first base station;
determining, by the mobile terminal, whether the first signal quality is above a signal quality threshold in response to determining the first signal quality, wherein the signal quality threshold is indicated in system information transmitted by the first base station;
sending, by the mobile terminal, a measurement report to the first base station if it is determined that the first signal quality is below the signal quality threshold;
responding to the received measurement report, and sending a system information request message and a synchronous signal resource request message to the second base station by the first base station;
responding to the received system information request message and the synchronous signal resource request message, and judging whether the second base station allows the mobile terminal to access the second base station or not by the second base station;
if the second base station allows the mobile terminal to access the second base station, the second base station sends information for randomly accessing the second base station, system information of the second base station and resource information for sending a synchronous signal by the second base station to the first base station;
responding to the received system information of the second base station, and sending a first PDCCH message to the mobile terminal by the first base station, wherein the first PDCCH message comprises a system information configuration field;
transmitting, by the first base station to the mobile terminal, system information of the second base station on a PBCH channel of the first base station in response to transmitting the first PDCCH message to the mobile terminal,
the remote adjustment method for the resolution of the advertising board of the Internet of things comprises the following steps:
determining, by the mobile terminal, content of a first field in the first PDCCH message in response to receiving the first PDCCH message, wherein the first field comprises a first bit, a second bit, and a third bit;
if the first bit is determined to be the first value, determining, by the mobile terminal, that the first OFDM symbol used by the first base station for transmitting the PBCH channel is not used for transmitting the system information of the second base station;
if the first bit is determined to be the second value, determining, by the mobile terminal, that a first OFDM symbol used by the first base station for transmitting the PBCH channel is used for transmitting system information of the second base station;
if the second bit is determined to be the first value, determining, by the mobile terminal, that the second OFDM symbol used by the first base station for transmitting the PBCH channel is not used for transmitting system information of the second base station;
if the second bit is determined to be the second value, determining, by the mobile terminal, that a second OFDM symbol used by the first base station for transmitting the PBCH channel is used for transmitting system information of the second base station;
if the third bit is determined to be the first value, determining, by the mobile terminal, that the third OFDM symbol used by the first base station for transmitting the PBCH channel is not used for transmitting the system information of the second base station;
if the third bit is determined to be the second value, determining, by the mobile terminal, that a third OFDM symbol used by the first base station for transmitting the PBCH channel is used for transmitting system information of the second base station;
if the first bit is determined to be the first numerical value, the mobile terminal does not decode the second field corresponding to the first bit;
if the first bit is determined to be the second value, decoding a second field corresponding to the first bit by the mobile terminal, wherein the second field comprises a first number A1 of bits;
in response to decoding the second field corresponding to the first bit, determining by the mobile terminal a total number of subcarriers T1 used by the first base station for transmitting the first OFDM symbol of the PBCH channel;
in response to determining the total number of subcarriers T1 on the first OFDM symbol used by the first base station to transmit the PBCH channel, dividing, by the mobile terminal, the total number of subcarriers T1 by the first number a1 to obtain a second number B1 of subcarrier groups;
wherein the first value is 0 and the second value is 1,
the remote adjustment method for the resolution of the advertising board of the Internet of things comprises the following steps:
determining, by the mobile terminal, that a first one of the second number B1 of subcarrier groups is not used for transmitting system information of the second base station if a first bit of the first number a1 of bits is a first value;
determining, by the mobile terminal, a first one of a second number B1 of subcarrier groups to use for transmitting system information of the second base station if a first bit of the first number a1 of bits is a second value;
determining, by the mobile terminal, that a second one of the second number B1 of subcarrier groups is not used for transmitting system information of the second base station if a second one of the first number a1 of bits is the first value;
determining, by the mobile terminal, a second subcarrier group of the second number B1 for transmitting system information of the second base station if a second bit of the first number a1 of bits is a second value;
if the second bit is determined to be the first value, the mobile terminal does not decode a third field corresponding to the second bit;
if the second bit is determined to be the second value, decoding, by the mobile terminal, a third field corresponding to the second bit, wherein the third field includes a third number of bits A2;
in response to decoding the third field corresponding to said second bit, determining by the mobile terminal the total number of subcarriers T2 on the second OFDM symbol used by the first base station for transmitting the PBCH channel;
in response to determining the total number of subcarriers T2 on the second OFDM symbol used by the first base station to transmit the PBCH channel, dividing the total number of subcarriers T2 used by the mobile terminal by the third number a2 to obtain a fourth number B2 of subcarrier groups;
determining, by the mobile terminal, that a first one of the fourth number B2 of subcarrier groups is not used for transmitting system information of the second base station if a first bit of the third number a2 of bits is a first value;
determining, by the mobile terminal, that a first subcarrier group of a fourth number B2 is used for transmitting system information of the second base station if a first bit of the third number a2 of bits is a second value;
determining, by the mobile terminal, that a second one of the fourth number B2 of subcarrier groups is not used for transmitting system information of the second base station if a second one of the third number a2 of bits is the first value;
determining, by the mobile terminal, a second subcarrier group of the fourth number B2 to use for transmitting system information of the second base station if a second bit of the third number a2 of bits is a second value;
wherein the first value is 0 and the second value is 1,
the remote adjustment method for the resolution of the advertising board of the Internet of things comprises the following steps:
if the third bit is determined to be the first numerical value, the mobile terminal does not decode a fourth field corresponding to the third bit;
if the third bit is determined to be the second value, decoding a fourth field corresponding to the third bit by the mobile terminal, wherein the fourth field comprises a fifth number of bits A3;
in response to decoding the fourth field corresponding to the third bit, determining by the mobile terminal a total number of subcarriers T3 on a third OFDM symbol used by the first base station for transmitting the PBCH channel;
in response to determining the total number of subcarriers T3 on the third OFDM symbol used by the first base station to transmit the PBCH channel, dividing the total number of subcarriers T3 used by the mobile terminal by the fifth number A3 to obtain a sixth number B3 of subcarrier groups;
determining, by the mobile terminal, that a first subcarrier group of the sixth number B3 is not used for transmitting system information of the second base station if a first bit of the fifth number a3 of bits is a first numerical value;
determining, by the mobile terminal, that a first subcarrier group of a sixth number B3 is used for transmitting system information of the second base station if a first bit of the fifth number a3 of bits is a second numerical value;
determining, by the mobile terminal, that a second subcarrier group of the sixth number B3 is not used for transmitting system information of the second base station if a second bit of the fifth number a3 of bits is the first value;
determining, by the mobile terminal, a second subcarrier group of the sixth number B3 to use for transmitting system information of the second base station if a second bit of the fifth number a3 of bits is a second value;
wherein the first value is 0 and the second value is 1,
the remote adjustment method for the resolution of the advertising board of the Internet of things comprises the following steps:
in response to determining the symbols and subcarrier groups for transmitting system information of the second base station, monitoring, by the mobile terminal, the PBCH channel transmitted by the first base station to obtain system information of the second base station;
sending, by the first base station to the mobile terminal, an RRC connection reconfiguration message in response to receiving the information for randomly accessing the second base station, wherein the RRC connection reconfiguration message indicates to the mobile terminal the information for randomly accessing the second base station;
responding to the received resource information for the second base station to send the synchronous signals, and sending a second PDCCH message to the mobile terminal by the first base station, wherein the second PDCCH message indicates the resource information for the second base station to send the synchronous signals to the mobile terminal;
responding to the second PDCCH message, and starting to listen to a synchronous signal sent by a second base station by the mobile terminal;
determining, by the mobile terminal, a second signal quality of the synchronization signal transmitted by the second base station in response to monitoring the synchronization signal transmitted by the second base station;
determining, by the mobile terminal, whether the second signal quality is above a second signal quality threshold in response to determining the second signal quality, wherein the second signal quality threshold is indicated in system information of a second base station;
randomly accessing the second base station by the mobile terminal if the second signal quality is determined to be greater than the second signal quality threshold;
and responding to the random access to the second base station, and receiving an adjustment message of the resolution of the advertising board of the internet of things from the second base station by the mobile terminal.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111556526A (en) * | 2020-05-19 | 2020-08-18 | 蚌埠珠领智能科技有限公司 | Transmission method and system for 3D image rendering command of 5G mobile terminal |
| WO2020196804A1 (en) * | 2019-03-27 | 2020-10-01 | Sharp Kabushiki Kaisha | User equipments, base stations, and methods |
| CN112351447A (en) * | 2020-10-15 | 2021-02-09 | 北京贝耀信科技有限公司 | Public place security big data collection method and system based on block chain system |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710474A (en) * | 2009-11-19 | 2010-05-19 | 刘梦妍 | Remote control electronic display screen |
| KR101981685B1 (en) * | 2012-10-04 | 2019-08-28 | 삼성전자주식회사 | Display apparatus, user terminal apparatus, external apparatus, display method, data receiving method and data transmitting method |
| CN203910226U (en) * | 2014-04-29 | 2014-10-29 | 深圳市汇川技术股份有限公司 | Advertising player based on elevator Internet of Things |
| CN105631719A (en) * | 2016-03-21 | 2016-06-01 | 邓结华 | All-intelligent multimedia advertisement release system |
| US20170318620A1 (en) * | 2016-04-28 | 2017-11-02 | Mediatek Inc. | Connected Mode Discontinuous Reception for Narrow Band Internet of Things |
| US10904921B2 (en) * | 2017-06-07 | 2021-01-26 | Samsung Electronics Co., Ltd. | System and method of identifying random access response |
| CN108881478B (en) * | 2018-07-18 | 2020-11-10 | 山西大学 | Electronic advertisement terminal and system based on 4G communication network |
| US10944493B2 (en) * | 2019-05-30 | 2021-03-09 | Advanced New Technologies Co., Ltd. | Monitoring video broadcasts |
| CN111885742A (en) * | 2020-07-30 | 2020-11-03 | 蚌埠泰鑫材料技术有限公司 | Semiconductor production dust-free room environment monitoring method and system based on Internet of things |
-
2021
- 2021-06-22 CN CN202110688633.6A patent/CN113259876B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020196804A1 (en) * | 2019-03-27 | 2020-10-01 | Sharp Kabushiki Kaisha | User equipments, base stations, and methods |
| CN111556526A (en) * | 2020-05-19 | 2020-08-18 | 蚌埠珠领智能科技有限公司 | Transmission method and system for 3D image rendering command of 5G mobile terminal |
| CN112351447A (en) * | 2020-10-15 | 2021-02-09 | 北京贝耀信科技有限公司 | Public place security big data collection method and system based on block chain system |
Non-Patent Citations (1)
| Title |
|---|
| 姚忠.基于光电网络的远程可控室外LED电子显示屏系统.《中国有线电视》.2013, * |
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